Search Results — 2000 specimen records retrieved (1398 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  BLMAR207  Abies concolor Jennifer Anthony-Wheeler 1996-7-9 207 Humboldt Pilot ridge., growing as component of conifer mxed hardwood forest ar elevation range 1280 Comment
Read comments
Nov 1 2013
  RSA54126  Abies concolor Henry M. Pollard 1944-09 s.n. Humboldt Near Orleans. Comment
Read comments
Oct 1 2019
  CAS-BOT-BC78051  Abies grandis L. R. Abrams 1918-6-15 7100 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC78052  Abies grandis Doris K. Kildale 1927-2-20 2964 Humboldt Korbel Hill at Angel's Ranch 304 Comment
  RSA33416  Abies grandis Doris K. Kildale 1941-7-25 s.n. Humboldt Arcata Comment
  CAS-BOT-BC383848  Abronia latifolia W. R. Dudley 1899-6-1 s.n. Humboldt Samoa Comment
  HSC37569  Abronia latifolia J. D. Ackerman 1975-6-10 456 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC67579  Abronia latifolia J. P. Smith 1971-10-6 4946 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA0025085  Abronia latifolia Patricia Wilder 1968-8-21 4402 Humboldt Northern coastal arm of Humboldt Bay, ca. 2 miles SW of Samoa, near bay by roadside. Humboldt Bay drainage area. 5 Comment
  RSA0025088  Abronia latifolia M. B. Dunkle 1936-8-18 4817 Humboldt Moonstone Beach, N. Arcata. Comment
  UCD150384  Abronia umbellata var. breviflora William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  UC1360497  Acaena novae-zelandiae D. W. Cooper 1966-10-10 Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Hwy. 101. Comment
  HSC2785  Acer circinatum D. E. Anderson 1965-5-8 3627 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  UC1199016  Acer glabrum Joseph P. Tracy 1935-7-31 14394 Humboldt w side Devil's Backbone (barren rocky ridge connecting Trinity Summit with Salmon Summit); w side Devil's Backbone 1524 Comment
  HSC57033  Acer macrophyllum Overton, Butler 1979-7-24 9664 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC179927  Acer macrophyllum Joseph P. Tracy 1914-7-7 4493 Humboldt in valley of North Fork of Elk River Northern Coast Region, Humboldt Bay, North Fork Elk River (region about Humboldt Bay) 0 Comment
  UCSB28371  Acer macrophyllum Phelps, M. 1972-3-22 Humboldt 2 mi. south of Old Briceland Bridge along Eel River, 300 yds. from shore. 182 Comment
  UCD170788  Acer macrophyllum Gordon Leppig 1998-5-7 750 Humboldt Quarry Rd. off Jacoby Creek. At Jacoby Creek Bridge. 97 Comment
  CDA9169  Achillea millefolium T. C. Fuller 1958-6-17 613 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  SEINET11854568  Achillea millefolium J. P. Tracy 1947-1 17764 Humboldt Mouth of Little River Comment
  UC581788  Achillea millefolium Joseph P. Tracy Jul 16 1930-Jul 19 1930 9043 Humboldt near Blake Lookout; North Coast Ranges, South Fork Mountain 1737 Comment
  UC963846  Achillea millefolium H. E. Parks and S. T. Parks 1943-8-1 24246 Humboldt along coastal hills Egg Point; North Coast Ranges, Trinidad 121 Comment
  CAS-BOT-BC400017  Achlys triphylla Harley P. Chandler 1901-6-1 1293 Humboldt North Coast Ranges, Hupa Indian Reservation 182 Comment
  CAS-BOT-BC400020  Achlys triphylla Doris K. Kildale 1928-5-19 5158 Humboldt Chalk Mountain Comment
  JEPS52979  Achlys triphylla subsp. triphylla W. L. Jepson 1932-7-26 16421 Humboldt Bull Creek Comment
  SEINET201040 Image available Achnatherum lemmonii J. P. Tracy 1913-5-4 4047 Humboldt Kneeland Prairie 762 Comment
  UC526756  Achnatherum lemmonii Joseph P. Tracy 1933-7-25 12849 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC216455  Achnatherum occidentale subsp. californicum Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Moutnain Trail 1524 Comment
  SEINET201041  Achnatherum occidentale subsp. californicum J. P. Tracy, HE Parks 1934-6-27 11078 Humboldt Grouse Mtn N Coast Range 1433 Comment
  UC526760  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-12 10446 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UCD103770  Acmispon americanus var. americanus Linda M. Barker 1976-6-1 1548 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC33760  Acmispon micranthus A. Montalvo 1975-5-24 276 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC64762  Acmispon micranthus Bruce Gordon 1979-6-18 140 Humboldt Redwood National Park, NNE of K & K Rd, about 2.5 mi. S of junction of K & K Rd. and Bald Hills Rd. 707 Comment
  HSC98301  Acmispon micranthus J. W. Johnson 1962-4-19 1276 Humboldt W of Texaco Service Station, Samoa Peninsula, Manila. Comment
  HSC98302  Acmispon micranthus Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  HSC98305  Acmispon micranthus J. R. Woodside 1963-5-1 24 Humboldt 1.25 mi. N of Fairhaven Comment
  BLMAR154  Acmispon parviflorus Donald Hazlett 1994-6-7 154 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  SEINET12094714  Actaea rubra F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -285 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC44137  Adenocaulon bicolor Thomas W. Nelson, Jane P. Nelson 1977-7-1 3564 Humboldt Along N side of ridge between Bear and Blanket Creeks 1494 Comment
  UC164803  Adenocaulon bicolor Joseph P. Tracy 1909-7-31 3042 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prarie 762 Comment
  UC249778 Image available Adiantum X tracyi Joseph P. Tracy 1924-9-16 6868 Humboldt <collector's garden> Eureka; Northern Coast Ranges 30 Comment
  UC62707  Adiantum jordanii Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5729 Humboldt Supply Creek Comment
  UC811115  Adiantum jordanii George Neville Jones 1936-3-22 8662 Humboldt s fork Eel River near Garberville Comment
  HSC54875  Agastache urticifolia G. L. Clifton, Griswold 1979-7-25 10852 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC194431  Ageratina occidentalis P. E. Goddard Jun 1 1906-Jul 1 1906 638 Humboldt North Fork Eel River Comment
  SEINET11854879  Agoseris apargioides J. P. Tracy 1949-1 18441 Humboldt Near Box Camp. Trinity Summit, meadow at Box Camp 1463 Comment
  UC176467  Agoseris apargioides var. apargioides Joseph P. Tracy 1912-7-7 3746 Humboldt near mouth of Elk River; Northern Coast Region Comment
  UC205185  Agoseris aurantiaca var. aurantiaca Joseph P. Tracy 1919-9-23 5284 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC1222934  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-6-15 17146 Humboldt n end Garberville Comment
  UC582758  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1929-7-4 8621 Humboldt French Camp Ridge French Camp Ridge 1066 Comment
  OBI6921  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mi W of Mud Springs (to Box camp on W slope of Trinity summit) Comment
  HSC56444  Agoseris heterophylla Griswold, Butler 1979-7-12 7191 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  SEINET6998444  Agoseris heterophylla Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  POM126128  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear Ridge Ridge 305 Comment
  CAS-BOT-BC127457  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon. 6 Comment
  CAS-BOT-BC127280  Agrostis exarata Joseph P. Tracy 1934-7-2 13296 Humboldt Trinidad. 60 Comment
  CAS-BOT-BC127290  Agrostis exarata C. L. Hitchcock; C. V. Muhlick 1963-7-14 22909 Humboldt Along Eel River at Fern bridge. Comment
  CAS-BOT-BC127297  Agrostis exarata Doris K. Kildale 1927-7-23 3796 Humboldt Near Lasseeks [Lassics] Peaks. Haaglin [Hoagland] Lake. Comment
  UC1607846  Agrostis exarata Harold E. Parks 1935-6-1 5687 Humboldt Spruce Cove Trinidad district 64 Comment
  UC181242  Agrostis exarata Joseph P. Tracy 1913-7-13 4359 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC292580  Agrostis exarata H. E. Parks 8302 Humboldt 100 Comment
  UC526886  Agrostis exarata Joseph P. Tracy 1927-6-19 8193 Humboldt Big Lagoon North Coast Region 6 Comment
  UC1145078  Agrostis hallii Joseph P. Tracy 1938-7-4 15983 Humboldt valley South Yager Creek; Valley of South Yager Creek 762 Comment
  UCD52555  Agrostis hallii P. B. Kennedy 1929-6-14 308 Humboldt Humboldt County. Comment
  HSC35455  Agrostis microphylla J. D. Ackerman 1975-8-2 603 Humboldt Intersection of Indianola Cutoff and US Hwy 101. 3 Comment
  UCD53038  Agrostis microphylla Joseph P. Tracy 1938-7-5 16006 Humboldt Carlotta, by old Strong's District School House, 5 miles east of town. 60 Comment
  HSC8806  Agrostis oregonensis R. I. Bonn 1965-10-1 Humboldt 2 mi. N of Bridgeville on Kneeland-Bridgeville Rd. 732 Comment
  UC526874  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8904 Humboldt near McKay Camp (edge of springy places); Northern Coast Ranges, South Fork Mountain 1676 Comment
  POM126118  Agrostis pallens Joseph P. Tracy 1900-7-4 876 Humboldt Ocean Beach at Samoa. Comment
  RSA10063  Agrostis pallens Joseph P. Tracy 1932-7-17 10661 Humboldt Trinity summit. Corral Prairie 1524 Comment
  HSC76537  Agrostis scabra D. K. Imper 1981-8-12 910 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  HSC8810  Agrostis stolonifera C. B. Wolf 1927-8-27 1189 Humboldt Eureka Bay, on the road from Eureka to Arcata. Comment
  SEINET200839 Image available Agrostis stolonifera Joseph P. Tracy 1909-7-11 3012 Humboldt Eureka 0 Comment
  HSC8830  Agrostis thurberiana J. P. Tracy 1930-7-16 8931 Humboldt South Fork Mountain: McKay camp. 1677 Comment
  CAS-BOT-BC138441  Aira caryophyllea H. E. Parks; S. T. Parks 1936-6-1 5850 Humboldt Spruce Cove, Trinidad. Comment
  HSC8855  Aira caryophyllea N. R. Waite 1965-5-19 41 Humboldt W edge of Humboldt State University campus. Comment
  HSC8865  Aira caryophyllea A. H. Murphy 1951-5-15 Humboldt 1 mi. SE of Fruitland-Whitlow Rd. Jct. on Whitlow Rd. 305 Comment
  UCD55715  Aira caryophyllea A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3620 Humboldt 2 miles north of Orleans, wooded banks of Klemath River. Comment
  SJSU16017  Aira praecox John Rawlings 2016-5-19 1801 Humboldt Gold Bluffs Beach 5 Comment
  UC672868  Alisma plantago-aquatica Joseph P. Tracy 1933-8-22 12984 Humboldt 1 mi w Loleta; Mouth of Eel River 6 Comment
  HSC98007  Allium amplectens Cara Witte 2007-7-8 450 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  CAS-BOT-BC460752  Allium amplectens Carl Purdy 1933-6-1 s.n. Humboldt Fort Baker Comment
  HSC42389  Allium amplectens Dale McNeal 1977-6-6 2046 Humboldt Beside the Bridgeville-Kneeland Rd., 9.4 mi. N of Bridgeville Comment
  POM169690  Allium bolanderi H. P. Chandler 1901-06 1434 Humboldt Klamath River. Comment
  HSC79066  Allium bolanderi var. bolanderi D. K. Imper 1984-6-6 Humboldt USFS Rd. 12N20 near Bald Mtn. Comment
  HSC102616  Allium campanulatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1603 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  SEINET3153890  Allium campanulatum N. Dennis 1965-6-19 132 Humboldt about 1/4 mi S and 1 mi E of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 mi SE of Kneeland 792 Comment
  HSC98539  Allium falcifolium Cara Witte 2008-6-9 697 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  HSC71825  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5956 Humboldt Saddle between Mt. Lassic and peak to E 1677 Comment
  HSC76440  Allium siskiyouense Denis Kearns 1981-6-24 27 Humboldt Near Cedar Camp 1219 Comment
  CAS-BOT-BC475482  Allium triquetrum E. C. Whitney 1965-4-19 s.n. Humboldt Lamphire Rd. and nearby field, Arcata Bottoms Comment
  SEINET12050176  Allium unifolium F. H. Utech 1986-1 86 -389 Humboldt ca 5 mi N of Shelter Cove Road on Kings Peak Road, near Tolkan Recreation Area 480 Comment
  HSC78649  Allium validum D. K. Imper 1982-7-23 1480 Humboldt Near Onion Lake. 1371 Comment
  UC1193076  Alnus rhombifolia R. E. Nelson 1950-8-31 153 Humboldt streamside 3 mi nw Neafus Peak; Quad. 29D1 609 Comment
  UC503097  Alnus rhombifolia Joseph P. Tracy 1930-8-3 9143 Humboldt Dinsmore's Ranch Northern Coast Ranges, Van Duzen River (on river opposite Buck Mt.) 670 Comment
  BLMAR265  Alnus rubra Jennifer Anthony-Wheeler 1999-6-16 265 Humboldt Headwaters Forest Reserve, throughout reserve esp. by rdsides 0 Comment
  CAS-BOT-BC169537  Alnus rubra Doris K. Kildale 1928-2-17 4273 Humboldt Patricks Point Comment
  HSC40971  Alnus rubra Linda M. Barker 1976-6-14 1602 Humboldt 3 mi. W of Arcata Comment
  HSC81811  Alnus rubra Kenneth Clark 1980-6-14 692 Humboldt N Fork of Dead Man's Gulch; throughout Shelter Cove 61 Comment
  HSC91602  Alnus rubra E. Mackey 1986-10-24 Humboldt Patrick's Point State Park, in front of Ceremonial Rock Comment
  HSC99493  Alnus rubra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 153 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
  RSA244997  Alnus rubra W. A. Heatoh 1965-4-10 23 Humboldt 0.5 mile N. of Trinidad St. Park near road to bluff. Comment
  SEINET8670754 Image available Alnus rubra W. J. Hess, Stoynoff, N 1995-1 7294 Humboldt Comment
  UC212982  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC503100  Alnus viridis subsp. sinuata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9080 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC90773  Alopecurus geniculatus Gail Newton 1982-5-31 3565 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1103312  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt Arcata <Bottom> North Coast Ranges, Arcata <Bottom> 15 Comment
  UC1103315  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt s. end of Humboldt Bay (Salmon Creek Valley); Salmon Creek Valley 15 Comment
  HSC8896  Alopecurus pratensis W. F. Cartwright 1965-5-20 78 Humboldt 5 mi. S of Arcata on Old Arcata Rd. Comment
  RSA129279  Alopecurus pratensis H. L. Person 1932-5-11 19401 Humboldt Redwood Highway, Arcata o Eureka. 0 Comment
  UCD55810  Alopecurus pratensis R. Tofsrud 1948-7-1 s.n. Humboldt Scotia. Comment
  BLMAR296  Ambrosia chamissonis Jennifer Anthony-Wheeler 2002-6-25 296 Humboldt King range, Growing in dune mat 3 Comment
  CHSC10149  Ambrosia chamissonis J. W. Johnson 1961-8-17 1022 Humboldt W. M. Lanphere Farm, Samoa Peninsula. Comment
  UC14177  Amelanchier alnifolia var. semiintegrifolia W. C. Blasdale 1896-6-6 Humboldt Fitzgeralds Comment
  UC1198748  Amelanchier utahensis Joseph P. Tracy 1932-7-18 10719 Humboldt Head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  UC1222322  Amelanchier utahensis Joseph P. Tracy 1951-5-6 19395 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  UC492197 Image available Amelanchier utahensis Joseph P. Tracy 1930-7-16 9093 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain Comment
  HSC8843  Ammophila arenaria Paul Shields 1955-9-22 Humboldt 12 mi. NW Arcata Comment
  UC1103317  Ammophila arenaria Joseph P. Tracy 1947-7-3 17767 Humboldt sand dunes at mouth of Little R. 6 Comment
  UC584207  Ammophila arenaria David D. Keck and J. Clausen 1935-6-16 3387 Humboldt Mouth of Little River Little River Comment
  SEINET7296676 Image available Ammophila arenaria Richard W. Pohl 1987-1 15639 Humboldt Eureka; Beach and salt marsh 2 Comment
  HSC17834  Anagallis arvensis D. E. Anderson 1963-5-25 2481 Humboldt 2-3 mi. N of Capetown Comment
  CHSC27929  Anaphalis margaritacea M. S. Taylor 1975-4-12 466 Humboldt Ca. 2000 yds E of Hwy 101, in Orick, by RR tracks. Comment
  HSC4623  Anaphalis margaritacea J. W. Johnson 1961-8-17 1018 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC98655  Anaphalis margaritacea Cara Witte 2007-7-26 596 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1438 Comment
  HSC81710  Anaphalis margaritacea Thomas W. Nelson, Jane P. Nelson 1980-8-12 6237 Humboldt Logging roads S of Lundbar Hills 61 Comment
  HSC102001  Anemone deltoidea M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 902 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC55633  Anemone deltoidea Overton, Butler 1979-7-24 9642 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  CAS-BOT-BC391772  Anemone deltoidea M. Louise Hutchinson 1913-5-1 s.n. Humboldt Near Eureka Comment
  CAS-BOT-BC391782  Anemone deltoidea W. R. Dudley 1899-6-21 s.n. Humboldt Below south fork of Eel River Comment
  HSC55757  Angelica arguta G. L. Clifton, Terry Griswold 1979-7-26 10295 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  JEPS14171  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  JEPS16074  Angelica genuflexa W. L. Jepson 1936-8-17 17910 Humboldt Fields Landing, Stills Ranch Fields Landing; , Stills Ranch Comment
  UC673052  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka, near south city limits Eureka 6 Comment
  UC562549  Angelica hendersonii Joseph P. Tracy 1930-7-21 8896 Humboldt Cape Mendocino, south of point of the Cape Cape Mendocino 3 Comment
  CAS-BOT-BC221416  Angelica hendersonii A. A. Heller 1924-7-23 s.n. Humboldt At Humboldt County camp on the redwood highway 7 miles south of Trinidad Comment
  HSC21446  Angelica lucida S. J. Hawks 1965-5-18 71 Humboldt Clam Beach. Comment
  HSC21451  Angelica lucida R. W. Spjut 1968-10-26 219 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC21452  Angelica lucida Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC8638  Angelica lucida D. E. Anderson 1966-10-29 4347 Humboldt Along E side of Humboldt Bay, 1 mi. S of Arcata. Comment
  UC642266  Angelica tomentosa Joseph P. Tracy 1939-8-16 16410 Humboldt Horse Mountain 1432 Comment
  HSC99069  Angelica tomentosa Cara Witte 2008-8-16 1027 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1548 Comment
  JEPS40360  Anisocarpus madioides Lincoln Constance 1934-5-23 601 Humboldt above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  HSC103785  Anthemis cotula M. Mesler, K. A. Wayman 2015-8-4 1646 Humboldt Trail between Mill Creek Lakes trail head and Andy's Camp 1633 Comment
  CAS-BOT-BC137779  Anthoxanthum aristatum K. L. Chambers 1984-6-16 5150 Humboldt Bald Hills Road, 7.0 miles past Lady Bird Johnson Grove, Redwood National Park, east of Orick. Comment
  CAS-BOT-BC289127  Anthoxanthum occidentale Mabel Wiesendanger 1928-4-7 907 Humboldt Lane's Redwood Flat, Redwood Highway Comment
  HSC5263  Anthoxanthum occidentale John Warner Hosking 1966-8-5 Humboldt Fickle Hill Rd, 1 mi. E of Arcata. Comment
  CAS-BOT-BC137741  Anthoxanthum odoratum Harley P. Chandler 1901-5-1 1106 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  HSC8940  Anthoxanthum odoratum R. Berg 1963-2-23 1 Humboldt Arcata, Fickle Hill area Comment
  HSC8953  Anthoxanthum odoratum D. E. Anderson 1962-3-31 1957 Humboldt Coastal area of Prairie Creek State Park, back of sand dunes Comment
  UC922011  Anthoxanthum odoratum Joseph P. Tracy 1942-6-2 17101 Humboldt 2 mi n of Bridgeville 609 Comment
  UC922012  Anthoxanthum odoratum Joseph P. Tracy 1948-6-13 18046 Humboldt Dobbyn Creek 152 Comment
  SEINET11682984  Anthoxanthum odoratum K. S. Erdman 1970-1 4786 Humboldt Doleson Hill Prairie, Bald Hills Rd, SE of Orick Comment
  HSC104450  Anthriscus caucalis Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 3 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC40265  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt 3 mi. W of Arcata Comment
  UC153989  Apocynum androsaemifolium Joseph P. Tracy July, 1908 2786 Humboldt ridge between Van Duzen and Mad Rivers near Low Gap; Northern Coast Ranges, Humboldt and Trinity Co. 914 Comment
  UC562298  Apocynum cannabinum Joseph P. Tracy 1932-6-14 10148 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC75558  Aquilegia formosa var. formosa J. O. Sawyer, R. J. Cole 1977-7-3 3006 Humboldt Environs of Mud Spring, Big Hill Rd. (F.S. 8N01) 1524 Comment
  RSA20852  Aquilegia formosa var. truncata Carl B. Wolf 1937-6-18 8892 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  HSC58034  Arabis glabra G. L. Clifton 1979-7-31 11869 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SDSU2557  Aralia californica Harvey 1938-8-13 2247 Humboldt Humbolt State Redwood Park. Comment
  RSA32651  Arbutus menziesii Doris K. Kildale 1927-5-7 3109 Humboldt Elk Ridge near Blacksburg. Comment
  UCR32149  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt North Coast Range, Bull Creek Flats Road, c. 8 mi west of junction US 101 Comment
  CAS-BOT-BC407747  Arceuthobium abietinum Doris K. Kildale 1926-9-5 2634 Humboldt Lasseck's Peaks, between Goat Camp and Signal Peak 1661 Comment
  HSC71803  Arceuthobium campylopodum M. A. Baker 1980-6-26 2381 Humboldt Near Sims Creek 610 Comment
  SEINET202625 Image available Arctium minus Joseph P. Tracy 1948-9-20 18223 Humboldt Halfway between Hoopa and Weitchpec Comment
  UC1121508  Arctostaphylos A. E. Wieslander 1931-5-17 192 Humboldt Orick-Orleans Rd Hoopa Quadrangle, Bald Hills Comment
  UC585941  Arctostaphylos Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC585942  Arctostaphylos Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23746  Arctostaphylos columbiana Doris K. Kildale 1926-6-18 2396 Humboldt Gold Bluffs on coast. Comment
  CAS-BOT-BC23752  Arctostaphylos columbiana Joseph P. Tracy 1934-7-2 13293 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23794  Arctostaphylos columbiana C. Hart Merriam 1920-9-18 s.n. Humboldt Berry Mt. between Trinity River and Redwood Creek Comment
  RSA622691  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27671 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1193031  Arctostaphylos columbiana R. H. Neuns 1950-7-13 129 Humboldt 3 mi s Alder Point; Quad. 29D2 548 Comment
  UC549499  Arctostaphylos columbiana J. E. Adams 1935-5-12 1047 Humboldt Patrick's Point Comment
  UC549500  Arctostaphylos columbiana J. E. Adams 1935-5-12 1046 Humboldt Patrick's Point Comment
  UC673126  Arctostaphylos columbiana Joseph P. Tracy 1940-7-14 16688 Humboldt near KIngs Peak; Wilder Ridge 762 Comment
  SEINET11989091  Arctostaphylos columbiana R. Gankin, Hildreth, W. R. 1967-1 1167 Humboldt 20 road mi E of Hwy 101 on Bald Hills Rd (from Orick) Comment
  RSA12534  Arctostaphylos columbiana var. columbiana C. B. Wolf 1934-7-2 5904 Humboldt 4 mi. from Snow Camp on rd. to Bald Mt. (Mts. east of Korbel). 1159 Comment
  RSA152310  Arctostaphylos columbiana var. columbiana Joseph P. Tracy 1945-5-15 17510 Humboldt Kneeland Prairie. 671 Comment
  RSA70856  Arctostaphylos columbiana var. tracyi J. E. Adams 1935-5-12 1045 Humboldt Patrick's Pt. Comment
  HSC7631  Arctostaphylos glandulosa Doris K. Kildale 1927-1-30 2899 Humboldt Big Lagoon, flat on S side of Lagoon Comment
  HSC102137  Arctostaphylos glandulosa subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1041 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1120179  Arctostaphylos glandulosa subsp. glandulosa A. E. Wieslander 1931-5-19 200 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  RSA632803  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27761 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA632812  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27778 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  BLMAR54  Arctostaphylos manzanita Jennifer Anthony-Wheeler 1994-2-14 54 Humboldt King range, growing along KR rd approx 2mi from rd end 228 Comment
  CAS-BOT-BC24475  Arctostaphylos manzanita Walter Knight; Irja Knight 1988-9-5 6362 Humboldt Bald Hill Road about 21.5 mi. from U.S. 101 en route to Hoopa. 929 Comment
  UC585963  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  CHSC85573  Arctostaphylos nevadensis L. P. Janeway 2003-7-30 7949 Humboldt High North Coast Ranges. Along Friday Ridge Road, at south end of Friday Ridge, 1.0 km (air) east-southeast of Friday Camp. Roadside. 1359 Comment
  UC585956  Arctostaphylos nevadensis Joseph P. Tracy 1935-7-30 14380 Humboldt Salmon Summit 2103 Comment
  CAS-BOT-BC46630  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16419 Humboldt Grouse Mountain. 1524 Comment
  HSC100469  Arctostaphylos pungens Carl C. Marshall Apr 1886 383 Humboldt Hoopa Valley. Comment
  SEINET2028698 Image available Arctostaphylos tracyi H. E. Parks 1931-12-1 4950 Humboldt Hobson's Trinidad 200 Comment
  CAS-BOT-BC47211  Arctostaphylos uva-ursi Josh Suchocki; Charlene Vullo; Kyle Wear 1995-4-15 101 Humboldt Manila. Comment
  CAS-BOT-BC47212  Arctostaphylos uva-ursi John Thomas Howell 1954-4-25 29157 Humboldt Little River. Comment
  HSC31470  Arctostaphylos uva-ursi Steve Selva 1974-8-28 91 Humboldt Approx. 5 mi. S of Arcata on the Samoa Peninsula Comment
  UCD52155  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1146 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  UCSB15774  Arctostaphylos uva-ursi 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC1198658  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1939-4-29 16258 Humboldt 2 mi sw Orleans; Klamath River 121 Comment
  CDA6803  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Ferndale: Larry Pries Dairy, 3.4 mi. W of Main St, on Centerville Beach Road. 0 Comment
  RSA518163  Arctotheca calendula G. D. Barbe, T. C. Fuller 1989-6-8 4321 Humboldt 3.4 miles west of Main Street, on Centerville Beach road, Ferndale. Comment
  UC668124  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 a Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  RSA86727  Aristida oligantha Joseph P. Tracy 1933-8-27 13000 Humboldt Robertsons Ranch, vicinity of Garberville. 305 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
  HSC16901  Armeria maritima subsp. californica J. W. Johnson 1962-5-9 1337 Humboldt Arcata, stabilized ridge 3, Christenson Farm, Samoa Peninsula Comment
  HSC26887  Armeria maritima subsp. californica Clifton Raymond Chesbrough 1973-6-19 99 Humboldt 0.5 mi. N of College Cove, along the coast. Comment
  HSC33756  Armeria maritima subsp. californica A. Montalvo 1975-5-24 268 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  CAS-BOT-BC82309  Arnica cordifolia Volney Rattan 1882-6-1 s.n. Humboldt unspecified Comment
  HSC74699  Arnica discoidea Gail Newton 1981-7-23 2287 Humboldt Near Bug Creek Butte. 1350 Comment
  HSC99480  Arnica discoidea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 139 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), between Six Rivers National Forest boundary and Box Camp. 1433 Comment
  RSA417143  Arnica discoidea H. M. Pollard 1947-8-8 s.n. Humboldt South River Road, south of Orleans Comment
  HSC8986  Arrhenatherum elatius W. F. Cartwright 1965-5-20 79 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  UC1103322  Arrhenatherum elatius Ellingwood 1946-11-1 Humboldt Arcata Bottom 12 Comment
  UC1103325  Arrhenatherum elatius Joseph P. Tracy 1927-9-25 8369 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UCD20406  Artemisia douglasiana Donald C. Hagar 1957-8-6 206 Humboldt 10 miles ENE of Hoopa, Jackson Hole. 1645 Comment
  SEINET201065  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt Samoa Comment
  UC1409182  Artemisia pycnocephala Robert F. Thorne and P. Everett 1965-8-5 35169 Humboldt Samoa Dunes 3 Comment
  UC665565  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  RSA40781  Artemisia suksdorfii C. B. Wolf 1944-10-26 11470 Humboldt Redwood Highway at Junction of road to Crannell 15 Comment
  SD56775  Artemisia suksdorfii Darley F. Howe 1963-7-8 3620 Humboldt 2.5 miles west of Bridgeville on Cal. 36. 149 Comment
  CHSC101365  Aruncus dioicus var. pubescens C. Sander; J. Wheeler 2004-9-1 CA 330 -62 Humboldt Ecoregion 14. Growing along Titlow Hill road off of Hwy 299. 1188 Comment
  RSA78412  Aruncus sylvester Philip A. Munz 1952-6-25 17840 Humboldt S of Grizzly Creek, N Fork of Trinity River, N of Helena. 1006 Comment
  CAS-BOT-BC400541  Asarum caudatum Harley P. Chandler 1901-5-1 1267 Humboldt North Coast Ranges. Redwood Belt 457 Comment
  POM117708  Asarum caudatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC57099  Asarum hartwegii Overton, Butler 1979-7-25 9828 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC1197608  Asclepias eriocarpa Joseph P. Tracy 1932-9-3 10764 Humboldt Alton to Fortuna; Eel River 15 Comment
  HSC1053  Aspidotis densa Elrid H. Spinas 1948-5-22 41 Humboldt Horse Mtn. Comment
  RSA44410  Aster oregonensis H. M. Pollard 1947-8-30 s.n. Humboldt North road along Klamath River near Van Fleet Ranch, Orleans region. Comment
  UC1197707  Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. 762 Comment
  CAS-BOT-BC193141  Astragalus rattanii var. rattanii Volney Rattan 1884-1-1 s.n. Humboldt Big Creek Comment
  HSC14581  Astragalus rattanii var. rattanii Jana Kattenhorn 1970-10-28 145 Humboldt Mad River at the mouth of Lindsey Creek. North Bank Rd. off Hwy. 299 Comment
  JEPS22949  Astragalus rattanii var. rattanii Volney Rattan 1884-1 Humboldt Eel River Comment
  UC179942  Astragalus umbraticus Joseph P. Tracy 1914-9-6 4598 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  RSA23653  Athyrium filix-femina subsp. cyclosorum C. B. Wolf 1939-7-6 9516 Humboldt Along Larabee Creek, 6 7/10 miles below Blocksberg on road to Bridgeville. 305 Comment
  HSC41335  Athyrium filix-femina var. cyclosorum Brad Klipfel 1974-9-7 565 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  HSC98869  Athyrium filix-femina var. cyclosorum Cara Witte 2008-8-5 995 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  HSC98974  Athyrium filix-femina var. cyclosorum Cara Witte 2007-8-9 626 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UC197924  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt along Black Creek Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC4345  Atriplex leucophylla Jerry Parker 1968-10-26 206 Humboldt Driftline 0.5 mi. S of Big Lagoon. Comment
  RSA246922  Atriplex subspicata R. F. Thorne, P. Everett 1965-8-8 35275 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  UC673039  Atriplex triangularis Harold E. Parks and Joseph P. Tracy 1934-10-13 11152 Humboldt Big Lagoon 3 Comment
  UCD56151  Avena barbata A. H. Murphy 1951-2-28 5 Humboldt South of Petrolia. Comment
  UC1192363  Azolla filiculoides Malcolm A. Nobs and S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  RSA246915  Azolla filiculoides Robert F. Thorne, Percy C. Everett 1965-8-9 35325 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC40410  Baccharis douglasii Thomas W. Nelson, James Nelson 1976-7-28 3061 Humboldt Beside SR 36 at Grizzly Creek Comment
  POM289915  Baccharis douglasii Lyman Benson 1929-7-12 1750 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  JEPS21274  Baccharis glutinosa Joseph P. Tracy 1938-8-21 16128 Humboldt Little River 9 Comment
  CAS-BOT-BC98030  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka, around Humboldt Bay 30 Comment
  UC1004331  Baccharis pilularis W. L. Colwell 1954-11-20 20 Humboldt 3 mi e of, along Eel River South Fork Quadrangle 29B4; Eel River 91 Comment
  HSC37823  Baccharis pilularis subsp. consanguinea Thomas W. Nelson, Jane P. Nelson 1976-2-21 2252 Humboldt Tish-Tang campground Comment
  HSC39984  Baccharis pilularis subsp. consanguinea Linda M. Barker 1976-9-3 1691 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC175209  Balsamorhiza deltoidea Joseph P. Tracy 1913-6-17 4175 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1524 Comment
  HSC48865  Barbarea orthoceras Brad Klipfel 1973-6-10 58 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CHSC68559  Bellardia trixago Vernon H. Oswald 1997-4-29 8361 Humboldt Somoa Dunes Recreation Area at the south end of the North Spit separating Hunbolt Bay from the ocean. Near seal level. Coastal Dunes. Comment
  UC127824  Bellis perennis Harley P. Chandler May 1901 1128 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  SEINET5707799 Image available Bellis perennis Suzanne E. May 1967-1 34 Humboldt On State Highway 36, 1 mile west of Bridgeville.; Bridgeville 183 Comment
  HSC42786  Berberis nervosa Rick Cooper 1977-4-23 13 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC59564  Berberis nervosa Rick Lundquist 1979-4-22 27 Humboldt 8.4 mi. up Fickle Hill Rd. from 11th St. across from HSU observatory 610 Comment
  CAS-BOT-BC75800  Berberis pinnata Doris K. Kildale 1927-7-17 3759 Humboldt Bug Creek. 792 Comment
  BLMAR413  Bidens cernua Clara Sander 2007-8-22 413 Humboldt South Spit, east side of road near "lone tree" 9 Comment
  JEPS53080  Boechera Joseph P. Tracy 1917-9-2 4838 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  UC572212  Bolboschoenus maritimus H. S. Yates 1936-6-16 5673 Humboldt 1 mi ne Samoa; Eureka Quad., ne of Samoa Comment
  HSC74466  Boschniakia strobilacea M. A. Baker 1980-5-17 1200 Humboldt Near Le Perron Peak 792 Comment
  HSC55130  Botrychium multifidum G. L. Clifton, Griswold 1979-8-1 11945 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  UC1239782  Botrychium multifidum J. P. Tracy 1900-10-7 972 Humboldt immediate vicinity of Eureka (Rick's Prarie) 0 Comment
  UC667105  Boykinia major Joseph P. Tracy 1937-7-25 15537 Humboldt head of Little Hors-Linto Creek Trinity Summit (Trinity Summit); , head of Little Hors-Linto Creek 1371 Comment
  CAS-BOT-BC420273  Boykinia occidentalis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley 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
  CAS-BOT-BC420252  Boykinia occidentalis Kenneth Clark 1980-6-14 690 Humboldt Point Delgada quad. north fork Dead Man's Gulch 121 Comment
  POM274466  Boykinia occidentalis Lyman Benson 1928-7-12 388 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  RSA246665  Boykinia occidentalis R. F. Thorne, P. Everett 1965-8-7 35186 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  HSC6582  Brassica rapa D. E. Anderson 1962-2-10 1922 Humboldt 1.5 mi. S of Trinidad Comment
  HSC6589  Brassica rapa D. E. Anderson 1962-1-31 1909 Humboldt Blue Lake, near oxidation pond Comment
  RSA254779  Brickellia californica Thomas W. Nelson 1973-9-3 1124 Humboldt McKeown Ranch north of Dinsmore; along flood plain of Mad River Comment
  UC620700  Brickellia californica S. K. Harris, Mrs. C. M. Wilder 1938-9-8 Humboldt below Blue Slide (bars on Van Duzen River); Van Duzen River Comment
  UC581798  Brickellia greenei Joseph P. Tracy 1934-9-5 13655 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1402 Comment
  RSA249403  Briza maxima J. D. Ackerman 1974-5-26 268 Humboldt ca. 1 mile south of Trinidad on Scenic Drive. Near coastal bluffs. Comment
  UC1145096  Briza maxima Joseph P. Tracy 1938-7-15 16061 Humboldt Bucksport; (adjacent to Eureka) 9 Comment
  HSC22743  Briza minor Dennis Anderson 1970-5-21 5082 Humboldt Scotia Bluffs Comment
  SEINET4183122 Image available Briza minor Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15063 Humboldt Meadow, Coolidge, Redwood Park. Comment
  HSC36784  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2038 Humboldt At summit just W of Larabee Valley Comment
  HSC48787  Brodiaea elegans subsp. elegans Brad Klipfel 1974-7-23 478 Humboldt Along Titlow Hill Rd. Comment
  UCSB16626  Brodiaea elegans subsp. elegans Breedlove, Dennis 1961-7-4 Humboldt 10.9 miles west of Willow Greek on US299 822 Comment
  SEINET12053853  Brodiaea stellaris J. P. Tracy 1950-1 18903 Humboldt McClellen Mt., just E of McClellen Rock, Burr Valley 762 Comment
  BLMAR554  Brodiaea terrestris Jennifer Wheeler 2004-5-20 554 Humboldt Stornetta Ranch Comment
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Apr 21 2014
  HSC33078  Brodiaea terrestris subsp. terrestris Thomas W. Nelson, J. D. Ackerman 1974-5-14 1267 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  UC1197735  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1936-6-9 14893 Humboldt s of point of Cape; Cape Mendocino 3 Comment
  BLMAR14  Bromus carinatus Brad Barr June, 1982 14 Humboldt King range, above randall creek on ridgetop Comment
  CAS-BOT-BC149569  Bromus carinatus var. carinatus Joseph P. Tracy 1935-6-23 13982 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  UC184919  Bromus carinatus var. carinatus Joseph P. Tracy 1912-6-9 3654 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  HSC92385  Bromus diandrus T. M. Mingo May 1965 Humboldt Edge of parking area at Luffenholtz Beach. Comment
  HSC9271  Bromus diandrus J. W. Johnson 1962-4-18 1268 Humboldt Along the lane below the W.M. Lanphere Home, Samoa Peninsula Comment
  CAS-BOT-BC155424  Bromus hordeaceus Henry M. Pollard 1948-7-18 s.n. Humboldt Orleans. Comment
  CAS-BOT-BC155428  Bromus hordeaceus Doris K. Kildale 1929-5-26 9132 Humboldt Klamath River at Orleans. 152 Comment
  HSC37852  Bromus hordeaceus Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UC1131062  Bromus hordeaceus H. S. Yates 1936-6-17 5716 Humboldt near Burr Valley 914 Comment
  HSC40577  Bromus orcuttianus Thomas W. Nelson, James Nelson 1976-7-28 3047 Humboldt W of Alder Springs along 2S08 1555 Comment
  UC552776  Bromus orcuttianus H. E. Parks and Joseph P. Tracy 1934-6-27 11079 Humboldt Grouse Mountain 1432 Comment
  UCR51752  Buddleja davidii H. M. Pollard 1947-8-9 s.n. Humboldt North Coast Range, Klamath River near Harley Place, Orleans region Comment
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Apr 27 2007
  UCD114857  Cakile edentula M. Barbour 1969-9-4 s.n. Humboldt West of Table Bluff (about 10 miles south of Eureka). Comment
  SEINET10904236  Cakile edentula subsp. edentula Gordon 1982-9-23 GORDON UMO 176677 Humboldt Eureka quad. T6n,r1w,sec.14 & 23. Coastal dunes and strand of Lanphere-christensen dunes preserve 3 miles w of arcata Comment
  HSC12357  Cakile maritima Steve Dorei 1970-10-7 145 Humboldt McKinleyville Comment
  HSC6611  Cakile maritima Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  HSC69642  Cakile maritima R. Kalal 1980-6-3 14 Humboldt 1 mi. S of Samoa 6 Comment
  SD112830  Calamagrostis canadensis D. F. Howe 1961-8-1 3103 Humboldt 6 miles north of Trinidad on Highway 101 Comment
  UCD56961  Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 B Humboldt near 'Panther Gap' on road between Mattole and Bull Creek. 822 Comment
  UCD56962  Calamagrostis foliosa A. H. Murphy 1951-5-18 38 Humboldt Mattole River, second bridge upstream, ca. 1 mile south of Petrolia. Comment
  JEPS72919  Calamagrostis nutkaensis Lincoln Constance 1934-6-25 923 Humboldt Englewood Bull Creek Region, South Fork Eel River (4 mi n of Dyerville and of n boundary of Humboldt Redwood Park, on Redwood Hwy) Comment
  UCD57504  Calamagrostis nutkaensis Elizabeth Wilson 1940-7-12 s.n. Humboldt north of Eureka. Comment
  JEPS84870  Callitriche stagnalis C. Thomas Philbrick 1987-6-9 2048 Humboldt ca. 0.5 mi. n. Orick (Redwood Creek, n. side of Rt. 101); Redwood Creek Comment
  HSC62669  Callitriche stagnalis Michelle Stevens 1979-5-18 115 Humboldt By Bayside Grange at 2297 Jacoby Rd., Bayside. 0 Comment
  CAS-BOT-BC80385  Calocedrus decurrens Doris K. Kildale 1927-12-1 4203 Humboldt Klamath River at Orleans Comment
  HSC57885  Calocedrus decurrens Overton, Butler 1979-7-31 11434 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  OBI33734  Calocedrus decurrens David J. Keil 1983-7-2 17316 Humboldt Ca. 4 mi SE of SR 299 along Titlow HIll rd below Horse Mtn Summit Rd Comment
  OBI7412  Calocedrus decurrens H. Wiedman 1966-1 s.n. Humboldt Near the Hoopa Valley Indian Reservation 366 Comment
  RSA47092  Calocedrus decurrens Doris K. Kildale 1926-8-31 2606 Humboldt Union Mattole - Geo. H. Miner s Ranch, Mattole River Valley Comment
  CAS-BOT-BC488455  Calochortus amabilis Doris K. Kildale 1926-5-16 2004 Humboldt Miranda on south fork of Eel River. Comment
  CAS-BOT-BC488456  Calochortus amabilis W. R. Dudley 1899-6-20 s.n. Humboldt By south fork of Eel River. South of Dyerville. Comment
  UC667123  Calochortus amabilis Joseph P. Tracy 1916-6-19 4711 Humboldt Bosworth's Larrabee Creek 457 Comment
  HSC15377  Calochortus tolmiei D. E. Anderson 1965-5-15 3559 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek, above Trinity River Comment
  JEPS17825  Calochortus tolmiei Joseph P. Tracy 1932-5-10 9931 Humboldt Bear River Ridge 609 Comment
  UC180217  Calochortus vestae Joseph P. Tracy Jun 21 1914-Jul 18 1914 4513 Humboldt Eureka Northern Coast Ranges Comment
  JEPS61766  Calochortus vestae Joseph P. Tracy 1916-6-19 4713 Humboldt Bosworth's Ranch Northern Coast Ranges, Laribee Creek 457 Comment
  RSA0120938  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 Comment
  CAS-BOT-BC175758  Caltha leptosepala Carl B. Wolf 1934-7-2 5891 Humboldt Snow Camp (mts. E. of Korbel). Near Small Lake 1371 Comment
  HSC74422  Caltha leptosepala Gail Newton 1980-8-10 2045 Humboldt Near Blake Mtn. 1707 Comment
  HSC99483  Caltha leptosepala K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 142 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
  RSA47142  Calycadenia truncata subsp. scabrella Doris K. Kildale 1925-9-4 982 Humboldt Redwood Creek Comment
  HSC16574  Calypso bulbosa R.. A. Rasp 1964-5-20 42 Humboldt 4 mi. W of Arcata off Lanphere Rd. on Lanphere ranch Comment
  UC673023  Calyptridium monospermum Joseph P. Tracy 1932-7-15 10590 Humboldt e of Corral Prairie (Trinity Summit); Trinity Summit 1828 Comment
  UC562487  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-8-30 13006 Humboldt Horse Mountain , Horse Mountain (Northern Coast Ranges) 1310 Comment
  HSC59205  Calystegia soldanella Terry Roth 1979-5-24 81 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  LA103753  Calystegia soldanella Robert F. Thorne; P. C. Everett 1965-8-9 35307 Humboldt Big Lagoon 3 Comment
  RSA296783  Calystegia soldanella Clark L. Miller 1979-5-24 1 -149 Humboldt Sandy Dunes off Somoa Blvd. approx. a half mile from Coast Guard Station Gate. Comment
  UC1197878  Calystegia soldanella Joseph P. Tracy 1920-8-29 5397 Humboldt mouth Little River (sand dunes); Northern Coast Ranges, mouth Little River 6 Comment
  RSA0116953  Camassia quamash subsp. linearis Frank W. Peirson 1923-7-11 3681 Humboldt 7 miles N of Arcata. Comment
  HSC16437  Camissonia cheiranthifolia J. W. Johnson 1961-9-4 1104 Humboldt Christenson Farm, Samoa Peninsula, Arcata. Comment
  HSC16540  Camissonia cheiranthifolia Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  HSC99216  Camissonia cheiranthifolia Linda M. Barker 1976-5-13 1492 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC59672  Camissonia cheiranthifolia George Kirn 1977-10-14 Humboldt 1/2 mi. NW of Samoa Comment
  NY679547  Camissonia cheiranthifolia subsp. cheiranthifolia A. A. Heller 1924-7-24 13881 Humboldt At Humboldt County camp, 7 miles S of Trinidad. Comment
  RSA146360  Camissonia cheiranthifolia subsp. cheiranthifolia G. J. Goodman 1957-9-3 6550 Humboldt On the strand 2 miles south of Orick. Comment
  RSA186809  Camissonia cheiranthifolia subsp. cheiranthifolia T. Mosquin, L. Mosquin 1962-7-19 4489 Humboldt 8.8 miles north of Big Lagoon along U.S. Highwy 101 to Oregon Comment
  RSA244988  Camissonia cheiranthifolia subsp. cheiranthifolia Norman Dennis 1965-6-8 104 Humboldt Samoa Peninsula along the W side of the Humboldt Bay. Comment
  HSC40377  Camissonia strigulosa Linda M. Barker 1976-4-30 1406 Humboldt 3 mi. W of Arcata Comment
  CDA18242  Camissoniopsis cheiranthifolia G. D. Barbe, T. C. Fuller 1974-6-19 1880 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 30 Comment
  UCD103508  Camissoniopsis cheiranthifolia Linda M. Barker 1976-5-13 1492 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC160234  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Peter H. Raven; Richard Snow 1958-7-21 13661 Humboldt Cape Mendocino Comment
  CAS-BOT-BC160238  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Alice Eastwood 1923-8-14 12310 Humboldt Samoa Comment
  SEINET10939001  Campanula prenanthoides Overton 1979-7-24 OVERTON 9585 Humboldt Near Titlow Hill, on the Willow Creek quad., close to the town of Willow Creek 1250 Comment
  SEINET10840309  Campanula prenanthoides Lincoln Constance 1934-6-11 Constance 854 Humboldt HUMBOLDT REDWOOD PARK ABOVE RD OPP. MOUTH BULL CR., DRY S BANK ABOVE RD 250 Comment
  SEINET10972394  Campanula prenanthoides Duncan 1920-9-22 Duncan s.n. Humboldt Hoopa Valley Comment
  SEINET10972405  Campanula prenanthoides Willis L. Jepson 1932-7-24 Jepson 16383 Humboldt FRUITLAND Comment
  HSC98552  Campanula scouleri Cara Witte 2007-7-20 568 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1522 Comment
  UC602559  Campanula scouleri Joseph P. Tracy 1926-6-27 7691 Humboldt Horse Mountain 1219 Comment
  SEINET10463754  Campanula scouleri Baker 1979-6-29 Baker 956 Humboldt Hopkin's Creek. T9N R5E Sec.3 760 Comment
  SEINET10463759  Campanula scouleri Joseph P. Tracy 1937-7-25 Tracy 15560 Humboldt Happy Camp Mountain; in Trinity Summit Range, northeast of Hawkins Bar, moist bank. 1280 Comment
  SEINET10463760  Campanula scouleri Tracy 1947-6-28 TRACY 17722 Humboldt Dinsmore's; along Van Duzen River, opposite Buck Mountain, shady places under Pines. 762 Comment
  SEINET201622  Campanula scouleri Joseph P. Tracy 1937-7-25 15560 Humboldt Happy Camp Mountain In Trinity Summit Range NE of Hawkins Bar. 1280 Comment
  UC1326259  Campanula scouleri Milo S. Baker 1947-8-10 11901 Humboldt 15 mi ne Hoopa (near end of forest road) 1371 Comment
  UC160970  Capsella bursa-pastoris Joseph P. Tracy 1911-5-21 3186 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC35279  Capsella bursa-pastoris J. D. Ackerman, A. M. Montalvo 1975-6-22 492 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  CAS-BOT-BC37419  Cardamine californica LeRoy Ellsworth Detling 1935-4-20 1643 Humboldt Redwood flat, 1 mile north of Dyerville. Comment
  LA204278  Cardamine californica Parks; Tracy 1931-3-26 916 Humboldt Lower Van Duzen River 60 Comment
  UC162359  Cardamine californica Joseph P. Tracy 1909-4-4 2950 Humboldt region about Humboldt Bay (Buhne's Ranch); Northern Coast Region, Humboldt Bay Region, Buhne's Ranch 0 Comment
  UC183543  Cardamine californica Joseph P. Tracy 1913-3-9 4016 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UCD114185  Cardamine californica Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  RSA167405  Cardamine californica var. integrifolia Joseph P. Tracy 1950-5-7 18651 Humboldt On the Redwood House Road, S of Redwood House 1 mile, on Yager Slope. (Head of South Yager Creek). Comment
  CHSC499  Cardamine californica var. sinuata G. Spurlock 1935-3-9 Humboldt Van Duzen river. Comment
  JEPS79885  Cardamine californica var. sinuata Joseph P. Tracy 1937-3-21 15233 Humboldt 2 mi w. Bridgeville 198 Comment
  UC249682  Cardamine californica var. sinuata Joseph P. Tracy 1921-3-20 5426 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River at Blue Slide 91 Comment
  HSC104453  Cardamine oligosperma Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 5 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  CAS-BOT-BC38065  Cardamine pachystigma Tom Craig 1941-7-1 s.n. Humboldt Alder Point. Comment
  CAS-BOT-BC384764  Cardionema ramosissimum Alice Eastwood 1923-8-14 12315 Humboldt Samoa Comment
  CAS-BOT-BC384768  Cardionema ramosissimum Ira L. Wiggins 1930-7-11 4687 a Humboldt Sand dunes near Samoa Comment
  UCD150616  Cardionema ramosissimum Joseph P. Tracy 1947-7-3 17765 Humboldt at mouth of Little River. 6 Comment
  UC1225795  Cardionema ramosissimum Joseph P. Tracy 1947-7-3 17765 Humboldt at mouth of Little River 6 Comment
  CAS-BOT-BC282967  Carduus pycnocephalus Kenneth Clark 1980-3-1 502 Humboldt Dead Man's Gulch 15 Comment
  SEINET11861100  Carduus tenuiflorus J. P. Tracy 1942-6-28 17266 Humboldt Angels Ranch, toward Hungry Hollow, Bald Mountain Comment
  RSA167273  Carex amplifolia Joseph P. Tracy 1948-9-5 18193 Humboldt Trinity Summit, head of Little Hors-Linto Creek, less than one mile south of Grizzly Camp. 1341 Comment
  SEINET10588473  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 Tracy 13504 Humboldt Dense clumps in wettest places. Dry Lagoon - along coast in front of South End of Stone Lagoon. 3 Comment
  CAS-BOT-BC18008  Carex arcta Joseph Prince Tracy 1934-7-13 13389 Humboldt Dow's Prairie. 60 Comment
  CAS-BOT-BC18009  Carex arcta Joseph Prince Tracy 1934-7-13 13389 Humboldt Dow's Prairie. 60 Comment
  UC1586919  Carex arcta Juha Pykala and D. H. Norris 1987-6-5 1360 Humboldt e Maple Creek (se of Snow Camp Mountain, upper course of Redwood Creek); Redwood Creek 1100 Comment
  UC562288  Carex barbarae Joseph P. Tracy 1932-6-14 10152 Humboldt Trinity River Valley at Willow Creek 152 Comment
  POM289957  Carex bolanderi Lyman Benson 1928-7-11 s.n. Humboldt Weott Ranger Station, S Fork Eel. 61 Comment
  POM247168  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt 2 miles SW of top, Salmon Summit. 1768 Comment
  UC562723  Carex concinnoides Joseph P. Tracy 1927-4-23 7911 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 60 Comment
  UC1103597  Carex concinnoides Joseph P. Tracy 1933-6-13 12594 Humboldt on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  CAS-BOT-BC34972  Carex densa Joseph Prince Tracy 1938-6-9 15876 Humboldt Dobbyn Creek. 152 Comment
  CAS-BOT-BC20079  Carex echinata Joseph Prince Tracy 1933-7-25 12845 Humboldt Northern Coast Ranges. Grouse Mountain. 1524 Comment
  HSC74421  Carex echinata subsp. echinata Gail Newton 1980-8-10 2044 Humboldt Near Blake Mtn. 1707 Comment
  HSC96553  Carex echinata subsp. phyllomanica Gordon Leppig 1997-6-19 446 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC19963  Carex exsiccata Joseph Prince Tracy 1938-9-25 16170 Humboldt Bald Mountain; at Lake Prairie. 1066 Comment
  CAS-BOT-BC19965  Carex exsiccata Joseph Prince Tracy 1938-9-25 16170 Humboldt Bald Mountain: at Lake Prairie. 1066 Comment
  CAS-BOT-BC20013  Carex feta Joseph Prince Tracy 1935-5-25 13838 Humboldt Fort Seward. 106 Comment
  CHSC109942  Carex geyeri Peter F. Zika 2011-7-3 25498 Humboldt Titlow Hill Road, 4.2 road miles SE of Route 299 at Berry Summit, 0.8 air km SSW of Horse Mountain, Outer North Coast Ranges. 1390 Comment
  UC1755279  Carex geyeri Dean W. Taylor 2007-7-11 20162 Humboldt Horse Mountain; Six Rivers National Forest, Titlow Hill Road at the junction with Forest Road 6N18 1432 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
  JEPS79844  Carex gynodynama Joseph P. Tracy 1936-6-21 14991 Humboldt Iaqua 609 Comment
  CAS-BOT-BC22310  Carex harfordii Joseph Prince Tracy 1938-7-18 16083 Humboldt At Eureka. 30 Comment
  CAS-BOT-BC21752  Carex hassei Joseph Prince Tracy 1927-6-17 8170 Humboldt Big Lagoon. 6 Comment
  UC562720  Carex hassei Joseph P. Tracy 1927-6-17 8170 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1103592  Carex hendersonii J. P. Tracy 1899-4-30 312 Humboldt immediate vicinity Eureka 0 Comment
  UC1103595  Carex hendersonii Joseph P. Tracy 1942-6-15 17143 Humboldt on the Briceland road Redwood Creek 121 Comment
  CHSC90288  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8579 B Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC102150  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1057 Humboldt Patterson Meadows 1555 Comment
  HSC103629  Carex integra Thomas W. Nelson, Jane Nelson 1987-6-11 8609 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  JEPS25979  Carex laeviculmis Joseph P. Tracy 1932-7-16 10635 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC562427  Carex laeviculmis Joseph P. Tracy 1933-7-25 12856 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC28501  Carex lenticularis var. limnophila Robert F. Thorne 1965-9-19 35461 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  CAS-BOT-BC28502  Carex lenticularis var. limnophila Joseph Prince Tracy 1923-6-17 6275 Humboldt Big Lagoon 6 Comment
  UC1103588  Carex luzulina var. ablata Joseph P. Tracy 1923-6-24 6367 Humboldt Bald Mountain, near High Prairie Northern Coast Ranges 1066 Comment
  JEPS79849  Carex lyngbyei Joseph P. Tracy 1927-7-16 8248 Humboldt near mouth Elk River (around Humboldt Bay); Northern Coast Region 3 Comment
  CHSC85570  Carex mendocinensis L. P. Janeway 2003-7-30 7944 Humboldt High North Coast Ranges. White Rock Spring, just above Clear Lake, on southwest side below Titlow Hill Road, 2.9 km southeast of Titlow Hill. 1512 Comment
  HSC102153  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1061 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC32133  Carex multicaulis Joseph Prince Tracy 1941-4-11 16857 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  UCD140669  Carex multicostata Don Hagar 1957-8-27 s.n. Humboldt Red Cap Prairie, Trinity Summit area, around 15 miles east of Hoopa. 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
  UCR52378  Carex nudata L. P. Janeway 1984-4-28 751 Humboldt Garberville Q., West side of the South Fork of Eel River at Butte Creek, across the river from Miranda. 75 Comment
  CAS-BOT-BC119539  Carex nudata W. R. Dudley 1899-6-21 s.n. Humboldt Bluffs below forks of Eel River. Comment
  CAS-BOT-BC119545  Carex nudata L. P. Janeway 1983-7-23 438 Humboldt Orleans quad. Along the E side Klamath River at N end of Dolan Bar ca 1 mi N of Orleans 91 Comment
  HSC79284  Carex nudata L. P. Janeway 1984-5-13 777 Humboldt Along N fork of Yager Creek, 18 mi. E of Kneeland Post Office 381 Comment
  HSC40257  Carex obnupta Linda M. Barker 1976-4-30 1421 Humboldt 3 mi. W of Arcata Comment
  HSC7060  Carex obnupta W. R. Brigham 1962-4-7 22 Humboldt S of Big Lagoon Comment
  HSC7065  Carex obnupta D. B. Bader 1963-3-29 35 Humboldt Second of Clam Beach Lagoons, W of Hwy. 101 Comment
  UC8071  Carex obnupta Harley P. Chandler May, 1901 1122 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  CAS-BOT-BC119385  Carex obnupta W. R. Dudley 1899-6-1 s.n. Humboldt Peninsula opposite Eureka. Comment
  JEPS79831  Carex obnupta Joseph P. Tracy 1934-7-13 13381 Humboldt North Coast Ranges, Arcata Bottom Arcata Bottom; North Coast Ranges, Arcata Bottom 15 Comment
  RSA122793  Carex obnupta H. S. Yates 1936-6-16 5653 Humboldt 0.5 mile southwest of Samoa. Comment
  CAS-BOT-BC119268  Carex ovalis Alice Eastwood; John Thomas Howell 1937-6-23 4790 Humboldt Near Dinsmore's Comment
  JEPS80014  Carex ovalis Joseph P. Tracy 1926-6-20 7631 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1463 Comment
  CAS-BOT-BC119264  Carex ovalis Joseph Prince Tracy 1939-7-9 16315 Humboldt Bald Mt. Abundant in ditch 1 mi N of Murphy Meadows. 914 Comment
  POM126147  Carex pachystachya Joseph P. Tracy 1923-6-17 6278 Humboldt Big Lagoon 6 Comment
  SEINET8989726 Image available Carex pachystachya A. L. Hipp 1999-1 443 Humboldt Whitlow - 10.2 mi from intersection of 101 and Elk Creek Road on Dyerville Loop Road. Comment
  CAS-BOT-BC119221  Carex pachystachya Harold Ernest Parks; Joseph Prince Tracy 1935-6-16 11271 Humboldt Buck Mt. Lower NW slope. 792 Comment
  UC1103095  Carex pachystachya Joseph P. Tracy 1934-7-12 13374 Humboldt e Big Lagoon 3 Comment
  CHSC42978  Carex pansa L. P. Janeway 1987-7-31 2537 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  RSA22203  Carex pansa D. D. Keck 1938-8-5 4766 Humboldt Clam Beach. Comment
  HSC60292  Carex pansa Phyllis Krieg 1979-5-2 Humboldt Coast Guard sand dunes, Samoa 0 Comment
  JEPS122434  Carex subbracteata Peter F. Zika 2011-7-3 25493 Humboldt Titlow Hill Road, 3 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain. Outer North Coast Ranges (NCoRO) Comment
  SEINET7486520 Image available Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt bove Chezen Road, at junction with Route 299, Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits 150 Comment
  HSC44031  Carex subfusca Thomas W. Nelson, Jane P. Nelson 1977-9-3 3728 Humboldt Along creek draining N end of pond above Alder Springs 1137 Comment
  HSC44059  Carex subfusca Thomas W. Nelson 1976-7-9 3004 Humboldt Along creek S of Mount Lassic (Signal Peak). 1707 Comment
  UC562336  Carex tumulicola Harold E. Parks and Joseph P. Tracy 1935-6-16 11270 Humboldt lower nw slopes Buck Mt. 792 Comment
  CAS-BOT-BC115543  Carex unilateralis Joseph Prince Tracy 1941-6-29 16935 Humboldt Large dense clump, Hettenshaw Valley 944 Comment
  SEINET7579342 Image available Carex unilateralis Joseph P. Tracy 1938-7-5 16007 Humboldt Carlotta, by old Strong's School House, 5 miles east of town. 46 Comment
  UC562649  Carex unilateralis Joseph P. Tracy 1927-7-17 8276 Humboldt Three Cabins; lower western foothills of Chaparral Mountain 457 Comment
  SBBG57215  Carex viridula H. E. Parks -Sep-1935 5214 Humboldt center of Dry Lagoon, S of Orick Comment
  HSC91590  Carpobrotus chilensis E. Mackey 1987-2-5 Humboldt Patrick's Point State Park, area next to Wedding Rock. Comment
  UC1225792  Carpobrotus chilensis Joseph P. Tracy 1947-9-1 17924 Humboldt Big Lagoon 6 Comment
  HSC69587  Carpobrotus edulis R. Kalal 1980-6-3 88 Humboldt Samoa Dunes, along Samoa Blvd. 6 Comment
  RSA47163  Castilleja affinis Doris K. Kildale 1927-1-17 2985 Humboldt Alton hill. Comment
  JEPS55949  Castilleja affinis subsp. litoralis T. I. Chuang and L. R. Heckard 1968-7-3 6456 Humboldt Table Bluff Comment
  SD131908  Castilleja affinis subsp. litoralis Rimo Bacigalupi, G. T. Robbins, C. L. Custer 1954-8-11 4758 Humboldt Road embankment, 1.2 miles south of Trinidad Comment
  HSC38444  Castilleja ambigua subsp. humboldtiensis J. P. Smith 1976-7-3 8934 Humboldt Just N of Samoa Bridge Comment
  HSC70448  Castilleja ambigua subsp. humboldtiensis Thomas W. Nelson, Doris K. Niles 1979-5-19 4694 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  RSA18017  Castilleja ambigua subsp. humboldtiensis Carl B. Wolf 1927-8-22 776 Humboldt Big Lagoon. Comment
  UC1011932  Castilleja applegatei subsp. pinetorum F. W. Pennell and J. P. Tracy 1940-7-7 26097 Humboldt w of Salyer; Grouse Mountain 1493 Comment
  CAS-BOT-BC255523  Castilleja applegatei var. pinetorum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  SBBG54572  Castilleja exserta subsp. latifolia F. W. Pennell, J. Tracy 1940-7-6 26085 Humboldt back of beach, Table Bluff, W of Loleta Comment
  RSA183597  Castilleja franciscana D. E. Anderson 1962-7-10 2244 Humboldt Luffenholtz Beach, about 2 miles south of Trinidad along old 101 highway. Comment
  HSC70292  Castilleja pruinosa Gail Newton 1980-7-22 1671 Humboldt Near Devils Backbone 1554 Comment
  UC1196746  Castilleja pruinosa Joseph P. Tracy 1942-6-23 17227 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC72569  Castilleja pruinosa J. P. Smith, J. O. Sawyer 1976-5-2 8628 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 Comment
  JEPS88837  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7876 Humboldt Horse Mt. Comment
  HSC20868  Castilleja rubicundula subsp. lithospermoides G. N. Bos 1965-5-2 244 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  UC199378  Castilleja rubicundula subsp. lithospermoides P. E. Goddard 1907-5-29 . 104 Humboldt Van Duzen Comment
  UC1502116  Ceanothus R. Sutherland 1976-5-11 8 .11-76 Humboldt just outside Sec 32 Sec 32; Pt. Delgada Quad. 609 Comment
  UC1502126  Ceanothus R. Sutherland 1975-7-1 3 .1.7 75 Humboldt along Baker Creek; Garberville Quad., along Baker Creek 335 Comment
  HSC99132  Ceanothus cordulatus Cara Witte 2008-10-18 1049 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  SDSU19193  Ceanothus cordulatus Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3012 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
  UC249581  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1922-4-30 5998 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS82328  Ceanothus gloriosus var. exaltatus Roger Raiche 1983-7-18 30530 Humboldt 2.4 mi n rd to Shelter Cove (along King Peak Rd); King Range Comment
  CAS-BOT-BC50043  Ceanothus incanus M. S. Jussel 1931-5-2 114 Humboldt Garberville Comment
  POM118617  Ceanothus incanus Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  RSA167407  Ceanothus incanus Joseph P. Tracy 1950-8-4 19249 Humboldt NW slope of the peak, Grasshopper Peak, in Bull Creek State Park at head of Canoe Creek Comment
  UCD112172  Ceanothus incanus J. E. Street 1950-6-24 s.n. Humboldt Honeydew. Comment
  HSC60024  Ceanothus integerrimus M. A. Baker 1978-5-6 474 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  HSC98605  Ceanothus integerrimus Cara Witte 2007-6-5 209 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.25 miles south of intersection with 5N04. 1405 Comment
  CAS-BOT-BC51145  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC51214  Ceanothus parryi Doris K. Kildale 1927-5-15 3302 Humboldt Petrolia Comment
  HSC101654  Ceanothus parryi J. P. Smith, J. O. Sawyer 2011-4-23 13114 Humboldt Along Salmon Creek Rd., 1.6 miles from its junction with U.S. 101. 82 Comment
  HSC36679  Ceanothus parryi R. Sutherland 1975-5-2 11 .2575 Humboldt County rd. at S Fork Eeel River 95 Comment
  UC1071245  Ceanothus parryi A. E. Wieslander 1931-5-23 221 Humboldt w Briceland; Briceland Quad. Comment
  UC249582  Ceanothus parryi Joseph P. Tracy 1921-5-27 5808 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  HSC43229  Ceanothus pumilus R. Sutherland 1976-4-17 5 .17476 Humboldt 549 Comment
  HSC43230  Ceanothus pumilus R. Sutherland 1976-4-17 4 .17476 Humboldt 549 Comment
  CAS-BOT-BC52985  Ceanothus thyrsiflorus L. R. Abrams; J. T. Benson 1924-5-17 10731 Humboldt One mile north of Trinidad Head Comment
  HSC18341  Ceanothus thyrsiflorus Francis Winter 1960-4-23 Humboldt 1.0 mi S of Dollar Ranch Korbel-Maple Creek Rd. 152 Comment
  RSA31956  Ceanothus thyrsiflorus A. A. Heller 1937-6-11 15916 Humboldt Sandy bluff above Patric Point State Park near Big Lagoon Comment
  RSA46888  Ceanothus thyrsiflorus Doris K. Kildale 1926-3-20 1626 Humboldt Liscom Hill-Mad River Comment
  UC1193280  Ceanothus thyrsiflorus R. H. Neuns 1950-10-17 142 Humboldt Bear Creek Road 6 mi n Shelter Cove; Quad. 28D4, Bear Creek Rd, n of Shelter Cove 609 Comment
  UC1193283  Ceanothus thyrsiflorus R. H. Neuns 1950-10-23 143 Humboldt on Shelter Cove Road 3 mi e Shelter Cove; Quad. 28D4, e of Shelter Cove 487 Comment
  CAS-BOT-BC52865  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road, 5 miles north and 2 miles east of Boynton Prairie 630 Comment
  CAS-BOT-BC52871  Ceanothus velutinus Carl B. Wolf 1927-8-30 1242 Humboldt Paradise, 5 or 6 mi. n. of Ettersburg Comment
  CDA35679  Ceanothus velutinus Gordon Leppig 1998-6-1 876 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  HSC99446  Ceanothus velutinus var. velutinus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 96 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC272108  Centaurea cyanus Henry M. Pollard 1948-7-24 s.n. Humboldt Near Orleans Comment
  CDA7178  Centaurea nigra David Kratville 2007-8-24 PDR# 1440729 Humboldt Holmes; end of Holmes Flat Rd. Comment
  CDA7311  Centaurea pratensis E. C. Whitney, R. E. Talbert 1966-8-4 Humboldt Weitchpec. Hoopa Reservation. 0 Comment
  POM128272  Centaurium muehlenbergii M. H. Manning s.n. Humboldt Hupa [Hoopa] Valley. 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
  RSA144572  Centaurium muehlenbergii Peter H. Raven, Richard Snow 1958-7-20 13629 Humboldt Along Friday Ridge Road to Grouse Mountain, 1.5 miles west of junction with United States Highway 299. Comment
  CAS-BOT-BC279138  Centromadia pungens subsp. pungens Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC73744  Cephalanthera austiniae M. A. Baker 1980-7-15 2932 Humboldt Near Whiting Ridge 1341 Comment
  UC161036  Cerastium arvense Joseph P. Tracy 1909-8-1 3067 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC79360  Cerastium arvense Kenneth Clark 1980-4-18 599 Humboldt Above Dead Man's gulch 175 Comment
  HSC4099  Cerastium glomeratum H. E. Parks, S. T. Parks Apr 1944 24279 Humboldt Spruce Cove, Trinidad 61 Comment
  UC1198316  Cerastium glomeratum Joseph P. Tracy 1921-4-24 5443 Humboldt Phillipsville Flat Northern Coast Ranges, S. Fork Eel R., Phillipsville Flat 91 Comment
  CAS-BOT-BC179477  Cercis occidentalis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopo Valley Comment
  CAS-BOT-BC179480  Cercis occidentalis Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  UC535726  Cercocarpus betuloides var. betuloides Eleanor Armstrong 1934-8-22 1184 Humboldt Richardson Grove 121 Comment
  HSC44337  Chamaecyparis lawsoniana Brad Klipfel 1975-6-17 674 Humboldt Horse Mtn. Comment
  UC198574  Chamaesyce serpyllifolia Joseph P. Tracy 1916-9-5 4769 Humboldt 4 mi above Eel River (South Fork); Northern Coast Ranges 60 Comment
  CAS-BOT-BC166043  Chamerion angustifolium subsp. circumvagum Carl B. Wolf 1927-8-22 767 Humboldt Big Lagoon Comment
  HSC98520  Chamerion angustifolium subsp. circumvagum Cara Witte 2008-8-6 998 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  UC1122499  Chamerion angustifolium subsp. circumvagum H. S. Yates 1936-6-23 5869 Humboldt 3 mi se Scotia; Rohnerville Quadrangle Comment
  HSC70250  Cheilanthes gracillima M. A. Baker 1980-6-8 1915 Humboldt Near Buck Flat. 1554 Comment
  HSC74806  Cheilanthes gracillima Gail Newton 1980-7-23 1717 Humboldt Near Packsaddle Ridge 1463 Comment
  CAS-BOT-BC473031  Chenopodium macrospermum var. farinosum Malcom A. Nobs; S. Galen Smith 1949-8-11 1340 Humboldt Marsh at eastern shore of Stone Lagoon Comment
  RSA246903  Chenopodium multifidum R. F. Thorne, P. Everett 1965-8-5 35168 Humboldt Samoa Dunes. 3 Comment
  UC179956  Chenopodium murale Joseph P. Tracy 1914-6-26 4519 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS59734  Chenopodium pumilio W. L. Jepson 1932-7-26 16400 a Humboldt Bull Creek 106 Comment
  UCR45440  Chimaphila menziesii Barry Silver 1986-5-3 568 Humboldt North Coast Ranges, Forest Road 7N02 to Waterman Ridge, 7 mi from Willow Creek 976 Comment
  SEINET10539751  Chimaphila menziesii Botany 1985-5-10 BOTANY s.n. Humboldt T5n,r6e,sec.34, h.m.; Grays falls campground off hwy 299. Shaded understory, Douglas fir, madrone, canyon live oak 241 Comment
  RSA119360  Chimaphila umbellata subsp. occidentalis S. S. Tillett 1956-7-6 616 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  UC404019  Chlorogalum pomeridianum var. pomeridianum P. E. Goddard 1901-7 11 Humboldt Hupa Comment
  CAS-BOT-BC236920  Chloropyron maritimum subsp. palustre Malcom A. Nobs; S. Galen Smith 1949-8-3 1200 Humboldt Bordering Humboldt Bay, ca. 2 miles north of Eureka Comment
  RSA43836  Chrysanthemum leucanthemum H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC36482  Chrysolepis chrysophylla Doris K. Kildale 1926-8-20 2570 Humboldt Bald Hills, east end of prairie near Tomlinson's 716 Comment
  HSC99490  Chrysolepis chrysophylla var. chrysophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 149 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
  UC667996  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1936-8-7 15117 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  RSA170226  Chrysosplenium glechomifolium Joseph P. Tracy 1918-4-28 4888 Humboldt At Eureka 0 Comment
  UC1198647  Cicendia quadrangularis Joseph P. Tracy 1930-5-18 8696 Humboldt Rohnerville Golf Course 152 Comment
  UC164825  Cichorium intybus Joseph P. Tracy 1907-6-20 2572 Humboldt Northern Coast Region; vicinity of Eureka Comment
  UCD59786  Cinna latifolia Joseph P. Tracy 1936-8-7 15087 Humboldt Trinity Summit, in fir woods, head of Little Hors-Linto Creek. 1371 Comment
  RSA245007  Circaea alpina subsp. pacifica William J. Ferlatte, B. D. Rogers 1966-6-15 2095 Humboldt East of Bridge ville on Highway 36 671 Comment
  SEINET200612 Image available Cirsium andrewsii H. E. Parks, Joseph P. Tracy 1934-7-13 13383 Humboldt Vicinity of Trinidad. Comment
  SEINET3403284  Cirsium arvense R. W. Spellenberg, N. Zucker 2011-7-24 14302 Humboldt 8 km north of Ferndale on Grizzly Bluff Rd. 8 Comment
  HSC81713  Cirsium brevistylum Thomas W. Nelson, Jane P. Nelson 1980-8-12 6239 Humboldt Logging roads S of Lundbar Hills 61 Comment
  HSC97973  Cirsium occidentale var. candidissimum Cara Witte 2007-6-21 318 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1390 Comment
  CAS-BOT-BC285580  Cirsium occidentale var. occidentale L. R. Abrams 1916-7-18 6142 Humboldt At Trinidad Comment
  HSC76337  Cirsium vulgare Michael Ericksen 1981-8-20 1076 Humboldt Near Van Duzen Public Campground 1000 Comment
  RSA297180  Cirsium vulgare Lincoln Constance 1934-6-11 853 Humboldt South Fork Eel River; Lower Look Prairie and Bull Creek Road to Dyerville Comment
  UC902167  Clarkia amoena Joseph P. Tracy 1948-8-22 18110 Humboldt Table Bluff Ridge 91 Comment
  CAS-BOT-BC160960  Clarkia amoena subsp. amoena P. A. Munz 1936-8-10 14339 Humboldt Little Van Duzen River, 15 mi. east of Bridgeville Comment
  CAS-BOT-BC160967  Clarkia amoena subsp. amoena S. K. Harris 1936-6-25 s.n. Humboldt On south side of Domingo Gulch on road from Petrolia to Cape Mendocino 30 Comment
  CAS-BOT-BC160974  Clarkia amoena subsp. amoena L. R. Abrams 1922-6-25 8229 Humboldt 6 miles north of Garberville along Eel River Comment
  UC20317  Clarkia amoena subsp. whitneyi H. N. Bolander 1866-1 6534 Humboldt Shelter Cove; ; Shelter Cove, Humboldt Co. Comment
  HSC16277  Clarkia concinna subsp. concinna J. E. Lankila 1962-5-6 13 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  UC1071989  Clarkia gracilis subsp. gracilis H. and M. Lewis 1947-6-13 420 Humboldt 2.3 mi e Bridge 4-119 (Highway 36); South Fork of Van Duzen River Comment
  UC902180  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1945-7-4 17511 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS43554  Clarkia purpurea subsp. quadrivulnera W. L. Jepson 1932-8-8 16490 Humboldt below Chaney Ranch; Grasshopper Peak 822 Comment
  RSA167262  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1950-6-15 18809 Humboldt Mail Ridge, North of Harris, Fort Seward Ranch Comment
  CAS-BOT-BC164823  Clarkia rhomboidea Doris K. Kildale 1928-6-24 5292 Humboldt Horse Mountain road near junction of Willow Creek road 853 Comment
  JEPS17215  Claytonia cordifolia Joseph P. Tracy 1932-6-15 10583 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  UC183596  Claytonia exigua subsp. glauca Joseph P. Tracy 1913-5-4 4049 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC673001  Claytonia perfoliata subsp. mexicana Joseph P. Tracy 1937-6-27 15380 Humboldt w of mouth of South Fork of Trinity River (Four-Mile Creek); Four-Mile Creek 670 Comment
  HSC24337  Claytonia perfoliata subsp. perfoliata C. E. Fellows 1971-8-16 398 Humboldt Clam Beach, near end of Central Ave. Comment
  UC673002  Claytonia perfoliata subsp. perfoliata Joseph P. Tracy 1927-5-15 8036 Humboldt near South Fork; Trinity River Valley 182 Comment
  SEINET200312  Claytonia rubra subsp. rubra J. P. Tracy 1913-6-16 4141 Humboldt Dinsmore's Ranch in valley of Van Duzen River opposite Buck Mt. 762 Comment
  SBBG69724  Claytonia sibirica H. and M. Dearing 1939-6-21 3689 Humboldt E fork of Willow Crk Comment
  SD113970  Claytonia sibirica Darley F. Howe 1962-5-22 3261 Humboldt 3 miles east of Orick on Bald Mountain Road 395 Comment
  RSA117681  Claytonia sibirica S. S. Tillett 1956-7-3 602 Humboldt 29 miles from jct 101, just past cutoff for Humboldt Ski Club area Comment
  SFV18549  Claytonia sibirica L. Hagenauer 2002-4-28 54 Humboldt Blue Lake, Mad River Fish Hatchery. Along east-facing slope next to rock trail leading to Mad River. 16 Comment
  UC161049  Claytonia sibirica Joseph P. Tracy 1911-7-5 3326 Humboldt near mouth of Willow Creek (along Willow Creek, tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  HSC18085  Clematis lasiantha Doris K. Kildale 1925-7-5 1000 Humboldt Willow Creek Flat Comment
  HSC100554  Clintonia andrewsiana Carl C. Marshall May 1885 69 Humboldt Redwood forests. Comment
  HSC104432  Clintonia andrewsiana Greg O'Connell 2013-5-21 Humboldt East of Holter Ridge, northeast of Bald Hills Rd. Comment
  RSA377079  Clintonia andrewsiana Anstruther Davidson 1927-05 s.n. Humboldt [label data illegible[ Comment
  SEINET12047068  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-1 72 -609 Humboldt Humboldt Redwoods State Park, Bull Creek Flats area 213 Comment
  UC180199  Clintonia andrewsiana Joseph P. Tracy 1914-5-17 4473 Humboldt between Ryans Slough and Freshwater Creek (about Humboldt Bay, at the Cumens Claim); Northern Coast Region, Humboldt Bay 304 Comment
  HSC57030  Clintonia uniflora Overton, Butler 1979-7-24 9654 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC198607  Collinsia grandiflora Joseph P. Tracy 1913-1 4777 Humboldt at Dinsmore's (in Van Duzen Valley); North Coast Ranges 762 Comment
  UC54920  Collinsia linearis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  JEPS6179  Collinsia linearis Joseph P. Tracy 1936-6-10 14931 Humboldt w mouth of South Fork Trinity River (mountain slopes); South Fork Trinity River 457 Comment
  RSA30612  Collinsia linearis Lincoln Constance, R. C. Rollins 1942-5-12 2888 Humboldt Klamath River 10 miles northeast of Weitchpec. 122 Comment
  UC1011935  Collinsia linearis F. W. Pennell and J. P. Tracy 1940-7-7 26090 Humboldt w of Salyer (e slope of Grouse Mountain); Grouse Mountain 975 Comment
  HSC22842  Collinsia rattanii D. E. Anderson, J. P. Smith, J. O. Sawyer 1970-5-10 5063 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC93919  Collinsia sparsiflora var. sparsiflora D. K. Imper 1997-5-5 Humboldt Kneeland Prairie, E of airport runway 854 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
  HSC32838  Collomia heterophylla Thomas W. Nelson, James Nelson 1973-5-28 948 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC71793  Collomia heterophylla Gail Newton 1980-6-16 177 Humboldt Near Monks Camp 109 Comment
  POM210032  Collomia heterophylla H. E. Parks 1933-05 01152 Humboldt Spruce Cove, Trinidad 76 Comment
  UC535757  Collomia heterophylla Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  HSC96927  Collomia heterophylla Elizabeth Kimbrough, Whitney Meier 2007-6-13 8 Humboldt Grouse Mtn., 1 mi. E of NF1 on USFS 5N04 1524 Comment
  HSC71821  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1980-6-27 5954 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  UCR275122  Conium maculatum Charity A. Hartshorn 2016-4-24 19 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  UC164847  Conyza canadensis Joseph P. Tracy 1911-7-9 3458 Humboldt near its mouth along Willow Creek; Northern Coast Ranges, Tributary of Trinity River, Willow Cr 182 Comment
  CAS-BOT-BC181555  Coptis laciniata Doris K. Kildale 1927-7-17 3753 Humboldt Bug Creek 792 Comment
  UC1196211  Coptis laciniata Joseph P. Tracy 1915-8-2 4663 Humboldt Northern Coast Ranges, Mouht of Lawrence Creek Lawrence Creek; Northern Coast Ranges, Lawrence Creek 152 Comment
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Jan 22 2014
  HSC31444  Corallorhiza maculata D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5562 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC16586  Corallorhiza maculata Doris K. Kildale 1926-5-2 1845 Humboldt Bald Mtn. road, between Bald Mtn. House and junction of Redwood Creek Road. Comment
  CHSC63435  Corallorhiza mertensiana Vernon H. Oswald 1994-6-29 6366 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 7.3 mi N of Titlow Hill Rd., 0.8 mi S of Brush Mtn Lookout Rd., S of Hwy. 299 and Willow Creek. 975 Comment
  JEPS79876  Corallorhiza striata Joseph P. Tracy 1918-5-28 4935 Humboldt on slope below High Prairie (near Redwood Creek); Northern Coast Ranges 609 Comment
  RSA0084713  Cordylanthus maritimus subsp. canescens Arnold Tiehm 2002-8-14 14063 Humboldt Black Rock Desert, Casey Springs, 2.1 road miles N of Black Rock Springs. 1204 Comment
  UCR122376  Cordylanthus maritimus subsp. palustris George K. Helmkamp, E. A. Helmkamp 2001-7-8 7008 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  RSA21672  Cordylanthus tenuis subsp. viscidus Carl B. Wolf 1937-8-13 9225 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC209754  Cornus glabrata Joseph P. Tracy 1919-5-31 5175 & 5210 Humboldt At Lack Pond. Trinity River Valley, near Willow Creek 152 Comment
  CAS-BOT-BC212011  Cornus nuttallii Doris K. Kildale 1926-3-28 1688 Humboldt Lord Ellis Road near Bald Mt. junction 609 Comment
  RSA183588  Cornus nuttallii D. E. Anderson 1965-4-24 3549 Humboldt About 1 mile east of Redwood Creek bridge on Highway 299. Comment
  UC1196911  Cornus nuttallii Joseph P. Tracy 1908-6-9 2675 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC502976  Cornus sericea subsp. sericea Joseph P. Tracy 1932-7-16 10629 Humboldt near Corral Prairie (Trinity Summit); Klamath Mts., Trinity Summit 1524 Comment
  HSC6423  Cornus sessilis H. E. Parks, S. T. Parks 1941-7-5 11492 Humboldt Horse Linto Creek. Comment
  JEPS50175  Cornus sessilis W. L. Jepson 1902-7-11 2014 Humboldt river bank of S. Fork Trinity R., Martin's Ranch S. Fork Trinity R., Martin's Ranch Comment
  UC249591  Cornus sessilis Joseph P. Tracy 1921-8-21 5945 Humboldt Three Creeks Northern Coast Ranges, Three Creeks 670 Comment
  UC249592  Cornus sessilis Joseph P. Tracy 1921-8-21 5941 Humboldt Trinity R. at mouth of S. Fork <Trinity R.>; Northern Coast Ranges, Trinity R. 152 Comment
  HSC38648  Coronopus didymus J. P. Smith 1970-11-18 4629 Humboldt HSU campus Comment
  UC1222290  Corylus californica Joseph P. Tracy 1950-7-31 19226 Humboldt about 1 mi N of Friday's Camp (where road crosses side of Friday Ridge) Comment
  UC144109  Corylus californica J. P. Tracy 1909-7-18 3015 Humboldt Eureka Comment
  UC503087  Corylus californica Joseph P. Tracy 1931-8-16 9611 Humboldt near Briceland Northern Coast Ranges 152 Comment
  CAS-BOT-BC180314  Corylus cornuta subsp. californica L. B. Kildale 1927-7-10 3734 Humboldt Gans Prairie - Bold Hills road Comment
  HSC3480  Corylus cornuta subsp. californica D. E. Anderson 1962-3-17 1939 Humboldt Comment
  SBBG58030  Corylus cornuta subsp. californica R. Hartwell 1938-8-4 Humboldt Bull Crk Flat, hillside opposite the store Comment
  HSC104410  Corylus cornuta subsp. californica Adam N. Canter 2017-6-15 9 Humboldt Near Fields Landing; Humboldt Hill, Spring Street 100 Comment
  HSC98546  Corylus cornuta var. californica Cara Witte 2007-5-26 652 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  RSA152313  Corylus cornuta var. californica Joseph P. Tracy 1946-8-25 17639 Humboldt Table Bluff, along Hookton road. 9 Comment
  SEINET11859878  Cotula australis J. P. Tracy 1943-4-10 17414 Humboldt Eureka Comment
  CHSC19513  Cotula coronopifolia J. F. Knezevich 1968-5-14 431 Humboldt Collected 13 miles south of Ferndale at Cape Mendocino. Comment
  JEPS36416  Crepis capillaris W. L. Jepson 1932-8-8 16531 Humboldt near Dyerville; Perrott Creek 304 Comment
  SD148248  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North coastan strand; north spit of Samoa Peninsula, 0.5 mile north of California Highway 255 bridge over Humboldt Bay. 6 Comment
  UC1787278  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6992 Humboldt North coast redwood area; CA-36, along the Van Duzen R. 19.6 mi E of US-101 (W of Bar W rd). 137 Comment
  CAS-BOT-BC291485  Crepis capillaris Carl B. Wolf 1927-8-28 1188 Humboldt Salt Marsh Eureka Bay on road to Arcata Comment
  POM289673  Crepis capillaris Lyman Benson 1929-7-12 1798 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  UC581728  Crepis pleurocarpa Joseph P. Tracy 1933-8-30 13033 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  RSA43685  Crepis setosa H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  HSC91878  Crocosmia X crocosmiiflora E. Mackey Humboldt Patrick's Point State Park Comment
  UC55910  Cryptantha flaccida J. P. Tracy 1903-5-22 1880 Humboldt Alder Point Bridge Eel River 152 Comment
  UC199009  Cryptantha leiocarpa Joseph P. Tracy 1906-5-13 2457 Humboldt Humboldt Bay Comment
  HSC57212  Cryptantha simulans Griswold, Butler 1979-7-12 7247 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC57211  Cryptantha torreyana Griswold, Butler 1979-7-12 7246 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC1239654  Cryptantha torreyana Joseph P. Tracy 1921-5-30 5497 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC179963  Cryptantha torreyana Joseph P. Tracy 1914-7-5 4560 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC55114  Cryptogramma acrostichoides Gilbert Muth 1979-8-1 11879 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  JEPS39856  Cupressus lawsoniana Joseph P. Tracy 1926-6-27 7672 Humboldt Horse Mountain North Coast Ranges 1463 Comment
  UC604649  Cuscuta campestris Joseph P. Tracy 1938-8-28 16138 Humboldt Stone Lagoon Beach 6 Comment
  HSC63068  Cuscuta salina David Wheeler 1979-5-28 151 Humboldt S end of sewage oxidation ponds Comment
  HSC3642  Cynoglossum grande Francis Winter 1960-4-23 Humboldt 1.5 mi. E of Korbel, on Korbel-Maple Creek Rd. 61 Comment
  UCD60132  Cynosurus cristatus R. Tofsrud 1949-7-1 s. n. Humboldt South edge of Scotia. Comment
  POM364982  Cynosurus echinatus Jacqueline Greenleaf 1980-8-5 288 Humboldt Dairy Creek 294 Comment
  UC526896  Cynosurus echinatus Joseph P. Tracy 1933-6-11 12542 Humboldt near Miranda; Northern Coast Ranges, near Miranda 152 Comment
  RSA246812  Cyperus eragrostis Robert F. Thorne 1965-9-19 35460 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  CAS-BOT-BC113832  Cyperus niger var. capitatus Joseph Prince Tracy 1938-8-14 16113 Humboldt South Fork of Trinity River, mountain slopes west of its mouth. 304 Comment
  JEPS79882  Cypripedium californicum Joseph P. Tracy 1926-6-27 7669 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  HSC102132  Cystopteris fragilis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1036 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS35194  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt S. Fork Eel River Comment
  RSA783324  Cytisus scoparius R. R. Halse 2010-3-25 7856 Humboldt Along US Hwy 101 ca. 9.7 miles S of Orick. 5 Comment
  HSC9530  Dactylis glomerata R. D. Zortman 1963-4-14 30 Humboldt 5.0 mi. NE of Arcata, off Warren Creek Road. 91 Comment
  JEPS71177  Dactylis glomerata W. L. Jepson 1936-8-13 17893 Humboldt South Fork Eel River Phillipsville; South Fork Eel River Comment
  CAS-BOT-BC189733  Danthonia californica Henry M. Pollard 1948-7-29 s.n. Humboldt Woodson Mine near Orleans. Comment
  UC1056068  Danthonia californica var. americana J. I. Mallory 1955-6-7 112 Humboldt Luke Prairie Quad 29-B-3 (n end) 350 Comment
  UCD60969  Danthonia californica var. americana J. T. Mallory 1955-6-7 112 Humboldt North end of Luke Prairie. 350 Comment
  RSA10087  Danthonia californica var. californica Joseph P. Tracy 1930-7-10 8860 Humboldt Brannan Mountain 1220 Comment
  RSA20722  Darlingtonia californica Carl B. Wolf 1937-9-11 9318 Humboldt Redwood Hwy 3 miles north of Orick (Davison's Ranch on Prairie Creek) 61 Comment
  UC183586  Darmera peltata Joseph P. Tracy 1913-6-11 4093 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS12211  Datura stramonium W. L. Jepson 1932-7-28 16436 Humboldt Dyerville 88 Comment
  HSC104060  Daucus pusillus M. F. Norman 2015-4-11 13 Humboldt Arcata, Ma-le'l Dunes Comment
  HSC96618  Delairea odorata Gordon Leppig 2005-4-8 2204 Humboldt N spit, S end of Peninsula Dr. 3 Comment
  UC1196318  Delphinium decorum subsp. decorum Joseph P. Tracy 1914-5-3 4418 Humboldt bluff s of Bucksport (vicinity of Eureka); Northern Coast Region 0 Comment
  UC249647  Delphinium decorum subsp. tracyi Joseph P. Tracy May 14 1922-Jun 12 1922 6047 &6088 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UCR139078  Delphinium decorum subsp. tracyi J. Cromwell, A. Thoele, J. Schneider 1994-5-6 050 Humboldt Six Rivers National Forest. On Titlow Road 0.4 mi south of Hwy 299 intersection 875 Comment
  POM270763  Delphinium hesperium Lyman Benson 1928-7-10 422 Humboldt Fortuna , Seaward N Coast, Mouth of Eel River. 46 Comment
  JEPS60593  Delphinium hesperium subsp. hesperium Lincoln Constance 1934-5-29 713 Humboldt Upper Look Prairie Bull Creek Region, South Fork Eel River 365 Comment
  CAS-BOT-BC10146  Delphinium menziesii Doris K. Kildale 1926-3-21 1617 Humboldt Kneeland Prairie 762 Comment
  HSC25012  Delphinium nudicaule Eugene Andreuccetti 1964-5-2 38 Humboldt 50 yds. from Ruby Creek on Hwy. 299 Comment
  UC1196328  Delphinium nudicaule Joseph P. Tracy 1937-5-30 15303 Humboldt 5 mi n Blocksburg; Larrabee Creek 365 Comment
  HSC24426  Delphinium nudicaule E. C. Murczek 1964-4-4 28 Humboldt 10 mi. N of Hoopa Comment
  HSC34917  Delphinium trolliifolium Thomas W. Nelson, James Nelson 1975-5-24 1862 Humboldt McKeown Ranch, N of Dinsmore. Comment
  POM299320  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon near Orick Comment
  UC503045  Delphinium trolliifolium Joseph P. Tracy 1927-6-5 8099 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC668070  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  OBI36621  Deschampsia cespitosa David J. Keil 1983-7-2 17301 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard Comment
  UCD61243  Deschampsia cespitosa Linda M. Barker 1976-7-5 1645 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC187264  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1904-7-31 2129 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  LA10879  Deschampsia danthonioides Joseph P. Tracy; 1935-6-23 13969 Humboldt 1066 Comment
  CAS-BOT-BC201779  Deschampsia elongata H. E. Parks 1931-5-1 3646 a Humboldt Big Lagoon Comment
  HSC102102  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1005 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC75510  Deschampsia elongata J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC98123  Deschampsia elongata Cara Witte 2007-6-19 292 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  SEINET200649 Image available Deschampsia elongata J. P. Tracy 1912-6-9 3684 Humboldt Alton 30 Comment
  HSC58010  Descurainia incana G. L. Clifton 1979-7-31 11806 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC275328  Dicentra formosa Joseph P. Tracy 1923-6-20 6329 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  CAS-BOT-BC402413  Dicentra formosa subsp. formosa J. Cromwell; A. Thoele; J. Schneider 1994-5-6 046 Humboldt Intersection of Hwy. 299 and Redwood Valley Rd. 609 Comment
  RSA10045  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  SEINET6879154  Dichelostemma congestum Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  SEINET12059401  Dichelostemma ida-maia K. S. Erdman 1970-6-17 4765 Humboldt S slopes of Schoolhouse Peak on Bald Hills Road about 16 mi S of Orick 914 Comment
  UC535761  Dichelostemma ida-maia Eleanor Armstrong 1934-5-17 Humboldt n of Redway Comment
  SD92990  Digitalis purpurea Walter Bertsch 1953-7-30 227 Humboldt Redwood forest along highway 101 near Dyerville. 60 Comment
  SEINET200655 Image available Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River near slate Creek below Orleans 8 miles. Roadside. 122 Comment
  UCD63953  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. 121 Comment
  CAS-BOT-BC208657  Distichlis spicata L. R. Abrams 1922-6-25 8250 Humboldt Humboldt Bay east of Arcata Comment
  CDA15326  Distichlis spicata R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Common to dominant perennial in grasslands around salt marsh near Loleta. 0 Comment
  HSC37496  Distichlis spicata J. D. Ackerman 1975-8-2 614 Humboldt Hwy. 101 between Eureka and Arcata, along Humboldt Bay across from Murray Field. Comment
  HSC71215  Distichlis spicata Thomas W. Nelson, Doris K. Niles 1979-5-19 4693 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC9637  Distichlis spicata J. Wendell Howe 1934-7-19 1311 Humboldt Edge of Humboldt Bay Comment
  UC562751  Dodecatheon alpinum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8930 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (South Fork Mountain) 1676 Comment
  UC562752  Dodecatheon hendersonii Joseph P. Tracy 1927-5-15 8061 Humboldt near summit on road w from Hoopa to Bair's (Hoopa Mountain); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC3845  Downingia elegans Doris K. Niles 1940-7-20 2 Humboldt Summit of Friday Ridge Rd., Grouse Mtn. 1829 Comment
  UC249685  Draba verna Joseph P. Tracy 1922-4-2 5986 Humboldt near Carlotta (Van Duzen River); Northern Coast Ranges, Van Duzen River bar 30 Comment
  CAS-BOT-BC159611  Drymocallis glandulosa var. glandulosa Carl B. Wolf 1937-6-19 8908 Humboldt Van Duzen River at Dunns Mill, 5 mi. below Bridgeville 91 Comment
  UC1198689  Drymocallis glandulosa var. wrangelliana Joseph P. Tracy 1933-5-14 12172 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC1033  Dryopteris arguta W. R. Supernaugh, Jr. 1964-12-15 16 Humboldt 400 yards S of Trinidad Harbor, off old logging rd. above beach 12 Comment
  POM281637  Dryopteris arguta Lyman Benson 1929-7-16 1829 Humboldt Weott Ranger Station. Comment
  UC1239776  Dryopteris arguta Joseph P. Tracy 1931-1-24 9280 Humboldt Alton; Northern Coast Region 30 Comment
  CAS-BOT-BC71054  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 s.n. Humboldt Crokscrew Tree, 8 miles north of Orick Comment
  UCD60826  Echinochloa crus-galli George Branstetter 1926-8-12 Humboldt Alton. Comment
  UCD60874  Echinochloa crus-galli H. E. Parks Date Unknown 24213 Humboldt Spruce Cove, Trinidad. Comment
  HSC101546  Ehrharta erecta J. P. Smith 2009-12-14 12703 Humboldt Along sidewalk at 980 Sixth St. in Arcata; weed Comment
  JEPS19330  Eleocharis bella Joseph P. Tracy 1935-7-27 14299 Humboldt McKay Prairie Trinity Summit 1584 Comment
  UC666879  Eleocharis pachycarpa Joseph P. Tracy 1935-6-8 13947 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon) 3 Comment
  HSC96566  Eleocharis pachycarpa Gordon Leppig 1997-6-19 449 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  JEPS19333  Eleocharis rostellata Joseph P. Tracy 1932-7-14 10559 Humboldt Corral PRairie, Trinity Summit 1584 Comment
  CDA31707  Elymus glaucus Russell Graham Aug 1960 Humboldt Near Weitchpec 0 Comment
  HSC9716  Elymus glaucus D. C. Juve 1964-5-16 44 Humboldt Campbell Creek Ranger Station, Camp Tish-Tang, Hwy 96. Comment
  UC113202  Elymus glaucus Joseph P. Tracy 1919-9-18 5254 Humboldt McKay Prairie Northern Coast Ranges, Trinity Summit 1524 Comment
  CAS-BOT-BC203799  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon 6 Comment
  HSC63872  Elymus multisetus M. A. Baker 1979-6-26 909 Humboldt S facing ridge Comment
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Feb 15 2013
  RSA0049661  Enemion stipitatum Dean Wm. Taylor 2011-5-4 21117 Humboldt Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junciton with Highway 36 734 Comment
Read comments
May 17 2019
  HSC16340  Epilobium brachycarpum D. E. Anderson 1961-9-23 1833 Humboldt 2.3 mi. S of Kneeland corner Comment
  UC146136  Epilobium brachycarpum Joseph P. Tracy 1909-7-31 3040 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC99131  Epilobium brachycarpum Cara Witte 2007-7-24 571 Humboldt Titlow Hill. 1 mile north of turn off to Cold Spring. 1484 Comment
  RSA44304  Epilobium canum subsp. latifolium H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mts. 1524 Comment
  HSC74689  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-7 2456 Humboldt Near Board Camp Mtn. 1478 Comment
  POM225267  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-9 14330 Humboldt South fork of Eel River, 5 miles north of Humboldt-Mendocino County line, on Redwood Highway Comment
  RSA32869  Epilobium ciliatum subsp. ciliatum A. A. Heller 1923-7-6 13767 Humboldt Humboldt Camp 10 miles south of Dyerville. Comment
  HSC49655  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4953 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA22708  Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-07 24050 Humboldt Spruce Cove, Trinidad. 64 Comment
  UC726596  Epilobium ciliatum subsp. watsonii A. A. Heller 1923-7-9 13785 Humboldt between Eureka and Fortuna Comment
  HSC103434  Epilobium densiflorum Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-6-7 9279 Humboldt Along Kneeland Rd., 2 mi. from junction with Maple Creek Rd. 671 Comment
  UCD106289  Epilobium densiflorum Roman Gankin 1965-8-6 561 Humboldt 2.5 miles SW of Capetown. Comment
  POM225270  Epilobium foliosum P. A. Munz 1936-8-10 14341 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. Comment
  HSC103079  Epilobium minutum Sydney Carothers 2014-6-12 12 Humboldt Six Rivers National Forest, Lassics Botanical Area, Red Lassic. Near upper pond and rustic camp site. 1706 Comment
  HSC32934  Epilobium minutum Thomas W. Nelson, James Nelson 1973-5-28 950 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC70924  Epilobium minutum R. York 1980-5-18 574 Humboldt Near Black Mtn 792 Comment
  HSC72791  Epilobium minutum M. A. Baker 1980-6-16 1933 Humboldt Near Monks Camp. 1097 Comment
  HSC79541  Epilobium minutum Kenneth Clark 1981-4-5 1300 Humboldt Dead Man's Gulch, Shelter Cove 11 Comment
  RSA21077  Epilobium minutum Carl B. Wolf 1937-8-13 9237 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  JEPS44027  Epilobium septentrionale W. L. Jepson 1924-9-19 10652 Humboldt river bed at Richardson Grove (S. Fork Eel R.); , Richardson Grove Comment
  POM272052  Epilobium septentrionale J. W. Thompson 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  JEPS64369  Epipactis gigantea Lincoln Constance 1934-6-12 858 Humboldt Bull Cr. road and N. bank of S. Fork Eel River; South Fork Eel River, Bull Creek region, Dyerville Comment
  UC1239785  Equisetum arvense Joseph P. Tracy 1949-6-25 18357 Humboldt Box Camp Meadow Trinity Summit 1463 Comment
  CAS-BOT-BC57230  Equisetum laevigatum H. E. Parks; Joseph P. Tracy 1927-4-24 7925 Humboldt Eureka 6 Comment
  CAS-BOT-BC57789  Equisetum telmateia Henry M. Pollard 1945-9-1 s.n. Humboldt Road to Camp Creek, Klamath River Canyon. Comment
  HSC93222  Equisetum telmateia subsp. braunii Gordon Leppig 1998-3-9 714 Humboldt Arcata, West End Rd., 0.3 mi. W of Ericson Way 30 Comment
  UC1239787  Equisetum telmateia subsp. braunii Joseph P. Tracy 1909-3-7 2945 Humboldt immediate vicinity Eureka 0 Comment
  UC526937  Equisetum telmateia subsp. braunii Joseph P. Tracy 1934-3-17 13163 Humboldt Trinidad 3 Comment
  SEINET3866711  Equisetum telmateia subsp. braunii R. L. Jarvis 1962-4-7 16 Humboldt Sea level. 2 miles south of Arcata on highway 101.; 0 Comment
  RSA10056  Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley, at Willow Creek. Comment
  CDA4547  Erechtites glomeratus M. A. Hart 1957-8-9 157 -57 Humboldt Between Eureka and Areata. 0 Comment
  RSA638987  Erechtites glomeratus R. F. Thorne, Percy C. Everett 1965-8-8 35239 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  CAS-BOT-BC299911  Erechtites minimus H. E. Parks 1931-9-1 1058 Humboldt Trinidad 76 Comment
  UC1193150  Ericameria arborescens P. J. Zinke 1950-10-9 180 Humboldt e slope King Peak (outside national forest); Quad 28D1 1219 Comment
  CAS-BOT-BC293486  Erigeron aliceae L. B. Kildale 1930-8-10 10529 Humboldt Snow Camp, head of Redwood Creek Comment
  UC1223016  Erigeron aliceae Joseph P. Tracy 1950-7-31 19237 Humboldt top of Grouse Mountain 1524 Comment
  CAS-BOT-BC296118  Erigeron foliosus var. confinis Doris K. Kildale 1929-5-26 9141 a Humboldt Klamath River at Orleans 152 Comment
  HSC44537  Erigeron foliosus var. confinis Brad Klipfel 1973-7-1 145 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC296114  Erigeron foliosus var. confinis Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans Comment
  RSA90920  Erigeron foliosus var. confinis F. W. Peirson 1926-7-13 7049 Humboldt River bottom, near Blue Lake, Mad River Comment
  HSC5523  Erigeron glaucus J. R. Kahl 1962-5-13 34 Humboldt 2 mi. S of Trinidad along old Hwy. 101, 50 yds. from ocean Comment
  CAS-BOT-BC295174  Erigeron inornatus Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  POM56121  Erigeron inornatus var. biolettii Joseph P. Tracy 1918-7-6 5052 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC581715  Erigeron inornatus var. inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  HSC74492  Erigeron klamathensis M. A. Baker 1980-7-24 3208 Humboldt Near Orleans Mtn. 1625 Comment
  BLMAR177  Eriodictyon californicum Donald Hazlett 1994-6-7 177 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC224260  Eriodictyon californicum Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville Comment
  RSA256584  Eriodictyon californicum D. E. Anderson 1972-6-20 5737 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  HSC99535  Eriogonum compositum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 200 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1829 Comment
  CHSC69503  Eriogonum latifolium Vernon Oswald; Lowell Ahart 1997-9-4 8853 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. 6 Comment
  SBBG1531  Eriogonum latifolium H. and M. Dearing 1939-5-25 3438 c Humboldt near Samoa Comment
  UCD100336  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River. Comment
  CAS-BOT-BC259530  Eriogonum luteolum var. luteolum H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  HSC55189  Eriogonum nudum G. L. Clifton, Griswold 1979-8-2 12253 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC98667  Eriogonum nudum var. nudum Cara Witte 2007-6-19 296 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38 1254 Comment
  CAS-BOT-BC261721  Eriogonum nudum var. oblongifolium A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie Comment
  UC77671  Eriogonum nudum var. oblongifolium J. W. Blankinship June 1893 Humboldt Comment
  CAS-BOT-BC269865  Eriogonum nudum var. pubiflorum J. H. Thomas 1949-6-13 926 Humboldt Klamath River Valley between Weitchpec and Hoopa Comment
  SEINET5333035  Eriogonum umbellatum var. nelsoniorum J. L. Reveal 2001-7-18 8346 Humboldt Along U.S. Forest Service Road 1 northwest of Grouse Mountain at milepost 14.3, about 10.3 air miles southwest of Salyer 1372 Comment
  HSC99135  Eriogonum umbellatum var. nelsoniorum Cara Witte 2008-7-10 854 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  CAS-BOT-BC301009  Eriophyllum lanatum var. achilleoides Harley P. Chandler 1901-5-1 1234 Humboldt North Coast Ranges. Humboldt Bay 30 Comment
  HSC98102  Eriophyllum lanatum var. grandiflorum Cara Witte 2007-6-20 311 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  UC1718078  Eriophyllum lanatum var. grandiflorum John S. Mooring 1970-7-7 2498 Humboldt hwy 96 2.5 miles S of Klamath River in Weitchpec, 20.4 miles N of Willow Creek in Willow Creek Comment
  UC582673  Eriophyllum staechadifolium Joseph P. Tracy 1935-7-18 14101 Humboldt Hillside facing ocean on Table Bluff 30 Comment
  HSC47494  Erodium cicutarium Sheila Logan 1978-4-9 18 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  UC17090  Erodium cicutarium Joseph Burtt Davy 1899-6-8 5342 Humboldt Bell Springs Comment
  HSC8495  Erodium cicutarium R. T. Forester 1963-3-13 23 Humboldt 1/4 mi. N of Fairhaven on Samoa Rd. Comment
  HSC6784  Erysimum menziesii R. van Weemen Van Noord 1966-3-24 2 Humboldt N end of Samoa drag strip. 6 Comment
  SEINET3991605  Erythronium californicum Unknown 1938-6-13 15896 Humboldt Horse Mountain , in open forest of Jeffrey Pine , on red soil in serpentine belt. 1433 Comment
  JEPS501  Erythronium grandiflorum Joseph P. Tracy 1930-7-18 9037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC15504  Erythronium revolutum W. D. Stevens 1963-4-15 14 Humboldt 1.5 mi. W of Berry Summit on Hwy 299 Comment
  POM169641  Erythronium revolutum H. P. Chandler 1901-06 1279 Humboldt Hupa Indian Reservation Comment
  UC1197643  Erythronium revolutum Ethel Tracy 1907-5-4 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC104346  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 5 Humboldt Kneeland 854 Comment
  CAS-BOT-BC403035  Eschscholzia californica Doris K. Kildale 1927-6-25 3548 Humboldt Shelter Cove Comment
  CAS-BOT-BC403036  Eschscholzia californica Doris K. Kildale 1926-5-9 1981 Humboldt Kneeland Prairie - summit 853 Comment
  HSC26453  Eschscholzia californica T. O. Osborne 1970-7-18 3 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  HSC58379  Eucephalus ledophyllus Terry Griswold 1979-7-25 10759 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1814 Comment
  POM182421  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek. 915 Comment
  UC1222990  Eucephalus tomentellus Joseph P. Tracy 1941-8-24 17043 Humboldt near, (openings in fir forest) McKay Camp; South Fork Mountain 1676 Comment
  HSC5686  Euchiton gymnocephalus David Adams 1960-7-15 Humboldt Near Azalea Reserve State Park 30 Comment
  RSA44413  Euchiton sphaericus H. M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  UC673083  Euchiton sphaericus Joseph P. Tracy 1940-8-11 16694 Humboldt near Raccoon Creek; Trinity River Valley 152 Comment
  JEPS51876  Euphorbia crenulata Lincoln Constance 1934-5-24 646 Humboldt Bull Creek Region; South Fork Eel River 121 Comment
  UCR94919  Euphorbia helioscopia D. L. Koutnik 1996-7-3 s.n. Humboldt Manila. Comment
  POM282192  Euphorbia lathyris Lyman Benson 1928-7-12 474 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC69641  Euphorbia peplus R. Kalal 1980-6-8 18 Humboldt Arcata, at intersection of Hill St. and Spring St. in the dry waste area of a yard. 43 Comment
  HSC59575  Euphorbia peplus Rick Lundquist 1979-4-24 37 Humboldt Arcata, lower Church parking lot at E end of 16th St. 46 Comment
  CDA20238  Euphorbia virgata B. Freeman 2003-11-19 PDR 141766 Humboldt North Coast Ranges; Hwy 96 at mouth of Camp Creek near Orleans. 0 Comment
  UCD98912  Fallopia sachalinensis H. E. Parks; S. T. Parks 1952-6-1 24448 Humboldt South of the Elk River Bridge on Highway 10. Comment
  UCD65925  Festuca elmeri Al Murphy 1949-6-1 Humboldt Fort Baker. Comment
  UC1103726  Festuca idahoensis Joseph P. Tracy 1941-6-15 16909 Humboldt Wilder Ridge 609 Comment
  UC70909  Festuca idahoensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5877 Humboldt Martins Ferry Comment
  HSC31117  Festuca occidentalis J. O. Sawyer 1970-6-14 2264 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC98580  Festuca occidentalis Cara Witte 2007-5-23 95 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1391 Comment
  UC38531  Festuca occidentalis Harley P. Chandler May 1901 1186 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC70908  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5396 b Humboldt Hubbards Station Comment
  SEINET11683172  Festuca rubra K. S. Erdman 1970-1 4812 Humboldt Gold Bluff Beach about 3 mi NW of Berry Glen and US 101 (Redwood NP) Comment
  CAS-BOT-BC282520  Festuca subbiflora Joseph P. Tracy 1901-6-10 1134 Humboldt Eureka 60 Comment
  CAS-BOT-BC278621  Festuca subulata Joseph P. Tracy 1935-7-27 14295 Humboldt Trinity Summit. Open places at McKay Prairie 1584 Comment
  SEINET200688 Image available Festuca subuliflora J. P. Tracy 1900-5-22 801 Humboldt Immediate vicinity of Eureka 0 Comment
  UC188848  Festuca subuliflora J. Burtt Davy and W. C. Blasdale 1899-6-13 5494 Humboldt Camp Grant North Coast Ranges Comment
  UCD66488  Festuca subuliflora G. L. Stebbins Jr.; G. L. Church 1941-5-27 3109 Humboldt At Strong's Station, on Van Duzen River. Comment
  UCD66498  Festuca subuliflora J. I. Mallory 1955-2-22 115 Humboldt Peavine Ridge one mile north of Luke Prairie. 701 Comment
  CAS-BOT-BC453523  Fragaria chiloensis Joseph P. Tracy 1904-4-24 2025 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region Comment
  HSC47484  Fragaria chiloensis Sheila Logan 1978-4-7 1 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  POM231291  Fragaria chiloensis D. D. Keck, Jens Clausen 1935-6-16 3390 Humboldt Mouth of Little River. Comment
  UC1198725  Fragaria chiloensis Joseph P. Tracy 1918-4-21 4875 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  JEPS44672  Fragaria vesca Joseph P. Tracy 1932-7-15 10578 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC1198730  Fragaria vesca Joseph P. Tracy 1905-4-2 2157 Humboldt near mouth of Lindsay Creek (Mad River); Northern Coast Ranges, Mad River 30 Comment
  BLMAR243  Frangula californica subsp. californica Jennifer Anthony-Wheeler 1997-7-24 243 Humboldt Lacks Creek, growing beside rd with ceanothus & rubus 1219 Comment
  CAS-BOT-BC52737  Frangula californica subsp. californica Carl B. Wolf 1927-8-30 1226 Humboldt 2 mi. s. of Petrolia on the Matole River, near point where road crosses river. Comment
  CAS-BOT-BC52738  Frangula californica subsp. californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  CAS-BOT-BC52741  Frangula californica subsp. californica Doris K. Kildale 1926-6-13 2162 Humboldt Briceland Bridge 1/2 west of Garberville. 114 Comment
  CAS-BOT-BC59964  Frangula purshiana W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  HSC93266  Frangula purshiana Gordon Leppig 1998-3-25 727 Humboldt McKinleyville, Central Ave. 43 Comment
  UC249521  Fraxinus latifolia Joseph P. Tracy 1922-5-29 6060 Humboldt South Yager Creek Valley Northern Coast Ranges 762 Comment
  CAS-BOT-BC130449  Fritillaria purdyi Elrid H. Spinas 1948-5-22 45 Humboldt Horse Mt. Comment
  UC667120  Fritillaria purdyi Joseph P. Tracy 1927-5-22 8076 Humboldt Kneeland Prairie 822 Comment
  HSC100646  Galium Carl C. Marshall Jun 1886 49 Humboldt Pilot Creek. Comment
  HSC19847  Galium aparine Elrid H. Spinas 1948-6-16 50 Humboldt Horse Mtn. Comment
  JEPS25693  Galium aparine P. C. Hutchison 1961-5-22 2021 Humboldt US 299 5.4 mi ne Klamath River bridge at Weitchpec (10 mi sw of Orleans, w side of river); Klamath River Comment
  UC594156  Galium aparine S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3427 Humboldt nw slopes Buck Mountain 822 Comment
  JEPS6719  Galium bolanderi Joseph P. Tracy 1935-7-29 14339 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  JEPS52693  Galium bolanderi Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3853 Humboldt 1/2 mi e Dinsmores (on Hwy 36, w-facing slope) 731 Comment
  RSA47106  Galium californicum Doris K. Kildale 1925-5-23 585 Humboldt Eureka. Comment
  POM338118  Galium californicum F. R. Fosberg 1948-8-28 30044 Humboldt Between Benbow and Garberville. Comment
  HSC37909  Galium divaricatum Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  RSA245002  Galium nuttallii William J. Ferlatte, B. D. Rogers 1966-6-15 2092 Humboldt Near Bridgeville. Comment
  UC1196102  Galium parisiense Joseph P. Tracy 1916-6-19 4719 Humboldt at Forks of Dobby Creek Northern Coast Ranges 182 Comment
  UC169006  Galium parisiense Joseph P. Tracy 1911-7-4 3278 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  JEPS52751  Galium porrigens var. porrigens L. T. Dempster and G. L. Stebbins 1963-7-8 3843 Humboldt at highway crossing n Willow Creek town; Willow Creek 140 Comment
  UC196081  Galium trifidum Joseph P. Tracy 1927-7-10 8246 Humboldt Alton Northern Coast Region 30 Comment
  HSC58008  Galium triflorum G. L. Clifton 1979-7-31 11804 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC416651  Galium triflorum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC19825  Galium triflorum Yarick 1960-8-5 Humboldt M&M, 7 mi., Krueger Creek Comment
  JEPS20474  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  BLMAR538  Garrya buxifolia Jennifer Wheeler 2009-6-23 538 Humboldt King range, On King Peak road Comment
  RSA183514  Garrya elliptica R. I. Bonn 1965-3-5 3 Humboldt Four miles west of Arcata on Lanphere Road. Comment
  RSA245037  Garrya elliptica David K. Smith 1968-10-11 7 Humboldt 3 mi S of Trinidad. Comment
  UC1196883  Garrya elliptica J. P. Tracy 1901-2-22 993 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC182150  Garrya fremontii Carl B. Wolf 1930-10-24 1762 Humboldt Along the Klamath River, 1 mile above the mouth of Slate Creek 243 Comment
  CAS-BOT-BC56267  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  HSC73068  Gaultheria ovatifolia M. A. Baker 1980-6-16 1953 Humboldt Near Onion Mtn. 1280 Comment
  HSC22529  Gaultheria shallon Jerry Parker 1968-10-26 197 Humboldt Big Lagoon County Park Comment
  HSC93253  Gaultheria shallon Gordon Leppig 1998-3-25 726 Humboldt Big Lagoon County Park, bank just E of bog 8 Comment
  RSA40407  Gaultheria shallon P. A. Munz 1948-8-13 12351 Humboldt 8 miles east of Blue Lake. 305 Comment
  RSA467224  Gaultheria shallon H. E. McMinn 1931-6-28 2548 Humboldt Orick to Requa Comment
  RSA46828  Gaultheria shallon Doris K. Kildale 1926-1-3 1465 Humboldt Big Lagoon road near Trinidad. Comment
  UCSB4793  Gaultheria shallon Keator, Glenn 1958-6-18 Humboldt Road between Bridgeville and Kneeland Comment
  RSA95762  Gaultheria shallon E. K. Balls 1954-4-7 19001 Humboldt 64 miles from Bluff Creek on Hwy 299 from Willow Creek to Arcata. Origin of material: seed coll. by E.K. Balls, July 11, 1949. 152 Comment
  UC505121  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10401 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC505122  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC217417  Gentiana plurisetosa D. H. Esplin 1969-10-14 20 Humboldt One mile north of North Trinity Mountain, Six Rivers N.F. 1828 Comment
Read comments
Dec 21 2017
  RSA69772  Gentiana sceptrum R. S. Woglum 1938-8-29 2038 Humboldt Trinidad Comment
  RSA245252  Gentiana sceptrum David K. Smith 1968-10-26 30 Humboldt At Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  UC1198642  Gentiana sceptrum Joseph P. Tracy 1920-8-29 5393 Humboldt Dows Prairie Northern Coast Ranges 45 Comment
  HSC37851  Geranium carolinianum Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  UC165804  Geranium carolinianum J. P. Tracy 1901-6-23 1186 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS61429  Geranium molle Lincoln Constance 1934-5-23 607 Humboldt above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC668044  Geranium molle Joseph P. Tracy 1933-5-19 12197 Humboldt Alton to Fortuna (along the Eel River); Eel River 15 Comment
  HSC28132  Geranium molle J. D. Ackerman 1973-5-6 51 Humboldt Redcrest Comment
  HSC8652  Geranium molle J. L. Baker 1965-4-2 30 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  RSA0029455  Geranium oreganum Volney Rattan 1878-06 s.n. Humboldt North of Redwood Creek. Comment
  HSC18645  Geum macrophyllum E. W. Styskel 1963-5-19 37 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  RSA84895  Gilia capitata H. M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  HSC16967  Gilia capitata J. Wendell Howe 1931-6-7 Humboldt Wildcat Rd. W of Ferndale Comment
  HSC97970  Gilia capitata subsp. capitata Cara Witte, Michael Scott 2007-6-22 346 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  BLMAR638  Gilia capitata subsp. pacifica Jennifer Wheeler 2011-6-21 638 Humboldt Lacks Creek, Pine Ridge Road Comment
  CAS-BOT-BC226147  Gilia capitata subsp. pacifica Doris K. Kildale 1925-6-28 1372 Humboldt Kneeland Prairie - bald hills 762 Comment
  HSC100592  Gilia grandiflora Carl C. Marshall Jun 1886 314 Humboldt Vicinity of Hoopa. Comment
  HSC100595  Gilia tenella Carl C. Marshall 469 Humboldt Near Garberville. Comment
  UC906683  Gilia tricolor subsp. tricolor Joseph P. Tracy 1943-5-9 17419 1/2 Humboldt at Willow Creek Trinity River Valley, at Willow Creek 152 Comment
  UC21300  Glehnia littoralis subsp. leiocarpa Harley P. Chandler May, 1901 1145 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  HSC75278  Glyceria elata J. O. Sawyer, D. A. Thornburgh 1980-9-9 4077 Humboldt Mill Creek Lake and surrounding meadows Comment
  HSC96582  Glyceria elata Gordon Leppig, Tony LaBanca 2005-6-6 2247 Humboldt Pacific Lumber Co. land, Redwood House Rd., Hely Creek headwaters pond. 630 Comment
  UC1199056  Glycyrrhiza lepidota Joseph P. Tracy 1935-5-30 13913 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC195428  Glycyrrhiza lepidota Joseph P. Tracy 1915-9-12 4668 Humboldt Laribee Creek Northern Coast Ranges, Eel River (mouth, fields along river) 30 Comment
  HSC67008  Gnaphalium palustre J. P. Smith 1971-10-9 5037 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  JEPS34040  Gnaphalium palustre W. L. Jepson 1936-8-17 17919 a Humboldt 2 mi s of Field's Landing (near Still's Ranch, marsh) Comment
  HSC102549  Goodyera oblongifolia M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1537 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC179960  Goodyera oblongifolia Joseph P. Tracy 1914-8-30 4595 Humboldt Ocean Beach at Humboldt Bay, Northern Coast Region Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CAS-BOT-BC304761  Grindelia hirsutula Carl B. Wolf 1927-8-29 1214 Humboldt Devil's Gate, south of Cape Mendocino Comment
  HSC2098  Grindelia hirsutula H. E. Parks Aug 1941 24190 Humboldt Big Lagoon Comment
  HSC79363  Grindelia hirsutula Kenneth Clark 1980-5-10 655 Humboldt S-facing bluffs of Point Delgada 8 Comment
  JEPS41893  Grindelia hirsutula W. L. Jepson 1936-8-18 17944 Humboldt Capetown Capetown (grassy flats by the sea) Comment
  UC1118561  Grindelia hirsutula G. T. Nordstrom 1937-7-1 1444 Humboldt 1.6 mi w Orick; Orick Quad. 0 Comment
  UC1196598  Grindelia hirsutula Joseph P. Tracy 1939-8-6 16397 Humboldt gravelly shore Big Lagoon 3 Comment
  UC722051  Grindelia hirsutula C. L. Hitchcock and J. S. Martin 1939-7-14 5437 Humboldt bluffs facing sea at Shelter Cove Comment
  RSA34050  Grindelia hirsutula var. davyi A. A. Heller 1923-7-7 13764 Humboldt Near the S fork of the Eel River, S of Garberville. Comment
  JEPS67937  Hackelia setosa Joseph P. Tracy 1937-7-2 15397 Humboldt on Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  JEPS79901  Hackelia setosa Joseph P. Tracy 1937-7-24 15510 Humboldt 2 mi se of Devil's Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC302441  Hazardia whitneyi var. discoidea Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 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
  CAS-BOT-BC306612  Helenium bigelovii L. B. Kildale 1930-8-10 10532 Humboldt Snow Camp, head of Redwood Creek Comment
  UC582670  Helenium bigelovii Joseph P. Tracy 1937-8-12 15657 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC306863  Helenium bolanderi Doris K. Kildale 1927-6-26 3592 Humboldt Patrick's Point Comment
  RSA20846  Helenium bolanderi C. B. Wolf 1937-6-18 8886 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  HSC98351  Helminthotheca echioides J. P. Smith 1976-11-21 9001 Humboldt Arcata, at the foot of I St. Comment
  HSC40554  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1976-5-23 2520 Humboldt SW facing slopes 1666 Comment
  UC495624  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1928-9-2 8494 Humboldt Dobbyn Creek Northern Coast Ranges Comment
  CAS-BOT-BC306182  Hemizonia congesta subsp. congesta David D. Keck 1944-7-11 5497 Humboldt Cape Mendocino 3 Comment
  JEPS12587  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1937-7-19 15456 Humboldt lower foothills of its nw slope Buck Mountain 914 Comment
  UC176756 Image available Hemizonia congesta subsp. tracyi J. P. Tracy 1908-7-30 2754 Humboldt opposite Buck Mountain; valley of Van Duzen River; valley of Van Duzen River opposite Buck Mt., Humboldt Co. 762 Comment
  UC495619  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1931-6-28 9598 Humboldt lower foothills of its nw slope Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  CDA40920  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 3 of 3 0 Comment
  UC673046  Heracleum lanatum Joseph P. Tracy 1940-9-26 16730 Humboldt s. end Humboldt Bay (Salmon Creek Valley); , Salmon Creek Valley 9 Comment
  SD53244  Heracleum maximum Darley F. Howe 1962-5-22 3301 A Humboldt 0.5 miles north of Orick on # 101 29 Comment
  HSC98193  Hesperocyparis macrocarpa Will Ferrand 2002-4-27 44 Humboldt HSU Campus, 100ft W of library 24 Comment
  SEINET10873420  Heterocodon rariflorum Chesnut CHESNUT 1888 Humboldt KNEELAND Comment
  JEPS44663  Heteromeles arbutifolia Lincoln Constance 1934-6-2 778 Humboldt Bull Creek road to mouth of Bull Creek (and up Bull Creek); South Fork Eel River, Bull Creek Region Comment
  POM89166  Heteromeles arbutifolia Joseph P. Tracy 1920-8-15 5389 Humboldt Klamath River at Bluff Creek. 152 Comment
  UC1198757  Heteromeles arbutifolia Joseph T. Gregory 1935-12-21 Humboldt 4 mi n Willow Creek (Trinity River bluffs, at the Meitz Place); Trinity River 121 Comment
  CDA31699  Heterotheca oregona M. K. Beyers, I. Shepardson 2009-9-13 244 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  SEINET5782099 Image available Heterotheca oregona S. K. Harris 1938-8-24 Humboldt Eel River, near Fernbridge Comment
  CAS-BOT-BC420739  Heuchera merriamii Joseph P. Tracy 1935-7-24 14172 Humboldt Trinity Summit near Ranger Station 1828 Comment
  UC535765  Heuchera micrantha var. diversifolia Eleanor Armstrong 1934-5-17 Humboldt Richardson Grove Comment
  CAS-BOT-BC312388  Hieracium albiflorum Doris K. Kildale 1927-7-17 3752 Humboldt Bug Creek 792 Comment
  UC582417  Hieracium albiflorum Joseph P. Tracy 1929-7-4 8613 1/2 Humboldt French Camp Ridge 1066 Comment
  UC1224689  Hierochloe occidentalis D. E. Anderson 1964-3-22 2925 Humboldt on roadcut on n side of creek Jacoby Creek Comment
  HSC69527  Hippuris vulgaris R. Kalal 1980-6-1 8 Humboldt Essex Pond 15 Comment
  HSC71723  Holcus lanatus M. A. Baker 1980-6-26 2464 Humboldt Near Sims Creek 610 Comment
  JEPS72924  Holcus lanatus Lincoln Constance 1934-6-11 849 Humboldt Bull Creek Region N. Dyerville Flat (trail along e bank of South Fork Eel River); e bank of South Fork Eel River, Bull Creek Region Comment
  UC963839  Holcus lanatus H. E. Parks and S. T. Parks August, 1943 24260 Humboldt Spruce Cove Trinidad (Trinidad); North Coast Ranges, Spruce Cove 60 Comment
  UCD84909  Holcus lanatus J. I. Mallory 1955-7-22 117 Humboldt Peavine Ridge, 1 mile north of Luke Prairie. 701 Comment
  UC1198703  Holodiscus discolor Joseph P. Tracy 1911-7-6 3362 Humboldt along road between Three Creeks and Mouth of Willow Creek, Northern Coast Ranges Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC187305  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1911-7-7 3392 Humboldt three mi nw of junction of Willow Creek with Trinity River (near Beese's Ranch); Northern Coast Ranges, Trinity River 914 Comment
  UC552784  Hordeum brachyantherum subsp. californicum Joseph P. Tracy 1935-5-25 13864 Humboldt Fort Seward 106 Comment
  HSC79356  Hordeum murinum subsp. glaucum Kenneth Clark 1980-5-10 644 Humboldt Shelter Cove, coastal bluffs of Point Delgada 3 Comment
  SEINET10841409  Horkelia californica Lincoln Constance, Alan A. Beetle; Joseph P. Tracy 1940-5-17 Constance 2613 Humboldt Branches reddish, ascending, petals white. With amelanchier and prunus, Serpentine? Soil of openings in cutover pinus ponderosa, pseudotsuga, quercus Garryana forest. Larrabee valley 762 Comment
  HSC97584  Horkelia tridentata subsp. flavescens C. Witte 2007-5-18 43 Humboldt Near Bottleneck Spring. 1575 Comment
  UC1222317  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1951-6-26 19597 Humboldt n side Board Camp Mountain (extreme head of Redwood Creek) Comment
  UC154516  Horkelia tridentata subsp. flavescens Harley P. Chandler June 1901 1295 Humboldt Hupa Indian Reserve North Coast Ranges 1066 Comment
  HSC74130  Horkelia tridentata var. flavescens R. York 1980-5-23 616 Humboldt Near Buck Mtn. 1524 Comment
  HSC96270  Horkelia tridentata var. flavescens Wanda Naylor, Laurel Goldsmith 2005-6-24 15 Humboldt S of Grouse Mountain on NF1 1595 Comment
  CAS-BOT-BC537962  Horkelia tridentata var. flavescens J. D. Ackerman 1975-6-18 472 Humboldt Big Hill rd. ca. 10.4 mi. E. of Hoopa and Hwy. 96. Comment
  UCD106038  Hosackia gracilis W. A. Williams 1951-6-14 s.n. Humboldt 3 miles E of Hydesville, Bech Ranch swale. Comment
  UCD106154  Hosackia oblongifolia Tofsrud 1948-9-1 s.n. Humboldt Clear Lake, on road from Horse Mt. to Grouse Mt. 1371 Comment
  HSC57649  Hydrophyllum occidentale G. L. Clifton, Griswold 1979-7-25 10819 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC13538  Hydrophyllum tenuipes Lincoln Constance, A. A. Beetle 1940-5-16 2611 Humboldt Valley of Van Duzen River, 5 mi. E of Carlotta 30 Comment
  JEPS66783  Hypericum anagalloides Lincoln Constance 1934-6-25 922 Humboldt 4 mi. n. Dyverville (and of n. boundary of Humboldt Redwood Park, on Redwood Hwy, Englewood); S. Fork Eel R., Bull Creek Region, Englewood Comment
  UC1714398  Hypericum formosum var. scouleri Joseph P. Tracy 1913-7 4393 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  UC668260  Hypericum formosum var. scouleri Joseph P. Tracy 1935-7-21 14112 Humboldt opposite mouth of Willow Creek (Lack Pond); Trinity R. Valley, Lack Pond 152 Comment
  UC1198408  Hypericum perforatum Joseph P. Tracy 1914-5-14 4449 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UC668256  Hypericum perforatum Joseph P. Tracy 1933-7-21 12820 Humboldt Valley of S. Yager Creek 762 Comment
  CAS-BOT-BC401230  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt Near Klamath River, about 1/2 mile north of town of Orleans Comment
  HSC12005  Hypericum perforatum Wilbur Peterson 1970-10-18 60 Humboldt 200 yards S of Mad River Bridge on Hwy 101 Comment
  SEINET3225680 Image available Iliamna latibracteata Joseph P. Tracy 1926-6-12 7585 Humboldt Prairie Creek. 150 Comment
  SEINET200732  Ipomopsis aggregata J. P. Tracy 1932-7-12 10440 Humboldt Trinity summit at Corral Prairie 1585 Comment
  JEPS3745  Iris Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez and S. Carlquist 1951-6-14 3414 Humboldt just below Snow Camp Mountain, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain ridge) 1432 Comment
  CHSC2200  Iris douglasiana E. Crouch 1929-5-8 Humboldt Comment
  HSC13868  Iris douglasiana K. P. St. John 1965-4-3 9 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  JEPS17225  Iris douglasiana Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  UC1103024  Iris douglasiana Joseph P. Tracy 1931-6-7 9574 Humboldt Eureka 30 Comment
  JEPS17227  Iris douglasiana Joseph P. Tracy 1939-6-17 16311 Humboldt vicinity Carlotta 30 Comment
  RSA135856  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-8 16510 Humboldt 21.2 miles south of Scotia, Highway 101 Comment
  HSC104075  Iris purdyi S. Carothers 2001-6-7 Humboldt Six Rivers National Forest; Lassics Botanical Area; below blue serpentine ridge, above Rd. 1S11 1585 Comment
  HSC34873  Iris purdyi Thomas W. Nelson, James Nelson 1975-5-5 1780 Humboldt Beside Hwy. 101, 4 mi. S of Salmon Creek bridge Comment
  UC1222674  Iris purdyi Joseph P. Tracy 1950-7-1 18950 Humboldt Friday Ridge, at Friday Camp, Grouse Mountain Friday Ridge; North Coast Ranges, Grouse Mountain 1219 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
  HSC67179  Iris tenuissima Thomas W. Nelson, James Nelson 1980-6-10 5430 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC74329  Iris tenuissima M. A. Baker 1980-6-16 1958 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC88653  Isatis tinctoria J. H. Thomas 1949-6-12 900 Humboldt Near Klamath River, about 0.5 mile north of town of Orleans. Comment
  HSC61723  Isatis tinctoria Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan 238 Comment
  UC667940  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC69937  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek, near Bosworth's. 457 Comment
  UC667943  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold springs Grouse Mt. 1432 Comment
  HSC40972  Isolepis cernua Linda M. Barker 1976-6-22 1618 Humboldt 3 mi. W of Arcata Comment
  RSA246917  Isolepis cernua Robert F. Thorne, Percy C. Everett 1965-8-7 35215 Humboldt Samoa Peninsula: near sea level Comment
Read comments
Sep 12 2018
  HSC7447  Isolepis cernua D. E. Anderson 1961-9-13 1817 Humboldt 1 mi. S of Trinidad Comment
  BLMAR304  Jaumea carnosa Jennifer Anthony-Wheeler 2002-7-1 304 Humboldt South Spit 6 Comment
  UC637154  Jaumea carnosa Edward Lee 1934-8-17 1149 Humboldt 35 mi n Eureka (e shore of Lagoon); Big Lagoon 3 Comment
  POM126145  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon. 6 Comment
  UC183674  Juncus bolanderi Joseph P. Tracy 1908-7-22 2907 Humboldt between Van Duzen and Mad Rivers (on Dinsmore's Ranch); Northern Coast Region 1066 Comment
  CHSC102919  Juncus breweri Peter F. Zika 2007-7-19 23173 Humboldt North Coast. S end of Humboldt Bay. 3 Comment
  CHSC43010  Juncus breweri L. P. Janeway 1987-7-31 2538 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  HSC98602  Juncus effusus Cara Witte 2007-6-28 383 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  RSA15569  Juncus effusus subsp. pacificus Carl B. Wolf 1927-8-28 1190 Humboldt Eureka Bay, on the road to Arcata. Comment
  HSC98593  Juncus ensifolius Cara Witte 2008-7-30 975 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  UC1152091  Juncus falcatus subsp. sitchensis Joseph P. Tracy 1938-7-6 16019 Humboldt sw corner Big Lagoon Comment
  JEPS63846  Juncus hesperius W. L. Jepson 1936-8-17 19709 Humboldt 2 mi s Field's Landing (near Still's ranch) Comment
  HSC39758  Juncus lescurii Peter Sorensen 1976-8-8 Humboldt Woodley Island Comment
  HSC90770  Juncus lescurii Gail Newton 1982-6-10 3608 Humboldt Elk River Wildlife Area, Eureka Comment
  CDA39191  Juncus lescurii Gordon Leppig 1999-10-3 1259 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  UC184144  Juncus occidentalis Joseph P. Tracy 1912-6-26 3707 Humboldt Eureka Northern Coast Region 0 Comment
  RSA742777  Juncus planifolius P. F. Zika 2008-10-19 24229 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  OBI14464  Kalmia polifolia Joseph P. Tracy 1942-6-23 17262 Humboldt Local at "Water Dog lakes" Comment
  LA209293  Keckiella breviflora Marcus E. Jones; 1931-7-16 28828 Humboldt junction, E of Arcata Comment
  SBBG66501  Keckiella corymbosa L. Rowntree 1931-7-21 Humboldt Mattole River bridge, near Petrolia Comment
  UC1222464  Keckiella corymbosa Joseph P. Tracy 1934-8-26 13602 Humboldt Blue Slide Northern Coast Ranges (on Van Duzen River) 91 Comment
  UC413904  Keckiella corymbosa C. M. Goethe 1930-8-13 Humboldt Eel River Comment
  UC50517  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5478 Humboldt Elk Prairie Comment
  UC1196123  Kopsiopsis strobilacea Joseph P. Tracy 1927-5-15 8046 Humboldt Sugar Bowl Mt. on road between Hoopa and Willow Creek. Comment
  UC581810  Kyhosia bolanderi Joseph P. Tracy 1935-7-23 14136 Humboldt summit Trinity 1584 Comment
  HSC26842  Lamium amplexicaule Thomas W. Nelson 1971-1-8 323 Humboldt Ferndale next to Co. Fair Grounds Comment
  HSC77913  Landoltia punctata Daniel V. Richards 1980-5-25 101 Humboldt N Clam Beach Pond, E side of Hwy. 101, near Cranell exit. Comment
  HSC58231  Lapsana communis Walter Overton 1979-8-1 12379 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC129574  Lasthenia californica subsp. californica Harley P. Chandler 1901-6-1 1455 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC169322  Lasthenia glaberrima Joseph P. Tracy 1912-6-9 3690 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC594160  Lasthenia glaberrima S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3439 Humboldt nw slopes Buck Mountain 822 Comment
  UCD106195  Lathyrus annuus W. A. Williams 1951-6-14 s.n. Humboldt 5 miles S of Capetown. Comment
  HSC48069  Lathyrus littoralis Thomas W. Nelson 1978-4-23 3878 Humboldt NW of Samoa Comment
  HSC49393  Lathyrus littoralis R. York 1979-5-15 291 Humboldt Coastal strand opposite the Louisiana Pacific Mill in Samoa. Comment
  SFV18497  Lathyrus littoralis E. Cohen Apr 2002 22 Humboldt Comment
  HSC75477  Lathyrus polyphyllus J. O. Sawyer 1980-7-18 3624 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC162840  Lathyrus polyphyllus Joseph P. Tracy Jun 27 1908-Jun 30 1908 2731 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD106540  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-7 19083 Humboldt 1/2 mile S of Pepperwood, along Highway 101. Comment
  UC169300  Lathyrus vestitus var. vestitus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3610 Humboldt near Hydesville; Northern Coast Region 30 Comment
  CHSC68554  Layia carnosa Vernon H. Oswald 1997-4-29 8360 Humboldt Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  HSC5912  Layia carnosa L. H. Myers 1963-5-13 15 Humboldt Dunes W of Lanpheres Rd., Mad River Slough area. Comment
  UC1565646  Layia carnosa Ken S. Berg 1987-5-30 Humboldt s of mouth of Mattole River; Mattole River Dunes Comment
  UC198626  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt mouth Little River Comment
  JEPS66641  Ledum glandulosum Joseph P. Tracy 1924-7-13 6728 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UC32706  Ledum glandulosum W. C. Blasdale 1896-6-2 Humboldt West Eureka Comment
  CDA25774  Lemna trisulca David Juliano 2008-9-25 s.n. Humboldt Miranda, 400 Catbey Ranch Rd. 0 Comment
  POM318724  Leontodon leysseri Patricia Wilder 1968-8-21 4397 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 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
  UC161491  Lepidium strictum Joseph P. Tracy 1911-7-1 3276 Humboldt near Hydesville (at Carlotta); Northern Coast Region, Carlotta 60 Comment
  CAS-BOT-BC12986  Lepidium virginicum Henry M. Pollard 1946-8-10 s.n. Humboldt South of Klamath River and east of Perch Creek. Orleans Region. Comment
  HSC17077  Leptosiphon androsaceus J. P. Tracy, H. E. Parks 1930-5-25 794 Humboldt Near Bridgeville 457 Comment
  HSC35037  Leptosiphon bicolor Thomas W. Nelson, James Nelson 1975-5-24 1871 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC71033  Leptosiphon bicolor Thomas W. Nelson 1977-4-20 3325 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  UCR122385  Lessingia filaginifolia var. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6996 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  SEINET11448001 Image available Leucanthemum vulgare H. E. Parks, S. T. Parks 1943-1 24257 Humboldt Spruce Cove, Trinidad 60 Comment
  UC673020  Lewisia nevadensis Joseph P. Tracy 1933-7-11 12687 Humboldt Grouse Mountain 1524 Comment
  HSC104437  Lewisia nevadensis Greg O'Connell 2013-5-16 Humboldt North of Board Camp Mountain, southeast of Snow Camp Mountain. Comment
  UC34076  Leymus mollis subsp. mollis J. P. Tracy 1901-8-7 1267 Humboldt ocean beach opp. Eureka; Samoa Comment
  JEPS17502  Ligusticum apiifolium J. P. Tracy 1900-10-7 971 Humboldt Eureka Comment
  JEPS17505  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek 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
  HSC76407  Ligusticum californicum Teresa Prendusi 1981-7-24 456 Humboldt Near Whiteys Peak 1585 Comment
  HSC12923  Ligustrum ovalifolium Steve Dorei 1970-12-4 87 Humboldt HSC Campus, W side of rd. leading to Wildlife Building Comment
  HSC76426  Lilium bolanderi Teresa Prendusi 1981-7-9 254 Humboldt Near Slate Creek Butte 1122 Comment
  CHSC98393  Lilium kelloggii Dean Wm. Taylor 2004-6-23 19116 Humboldt Fickle Hill Road 1.3 miles north of junction Butler Valley road. 731 Comment
  HSC54016  Lilium pardalinum subsp. pardalinum Griswold, Butler 1979-7-12 7158 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC79327  Lilium pardalinum subsp. pardalinum D. K. Imper 1982-7-15 Humboldt 1/3 mi. E of Grizzly Creek State Park on Hwy. 36, bank of Van Duzen River 1220 Comment
  HSC99865  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau 1979-8-10 713 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  UC615032  Lilium washingtonianum subsp. purpurascens Beryl O. Schreiber 1934-6-5 1142 Humboldt Gray's Resort; Redwood Creek Comment
  UC668184  Limnanthes douglasii subsp. nivea Joseph P. Tracy 1937-6-20 15346 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  HSC63016  Limnanthes douglasii subsp. nivea David Wheeler 1979-5-23 136 Humboldt About 1/2 mi. towards Bridgeville from the Jct. at High Prairie. Comment
  POM254102  Limonium californicum C. C. Harris, S. K. Harris 1939-9-8 973 Humboldt South shore of Humboldt Bay. Comment
  UC1198578  Linanthus androsaceus J. P. Tracy 1903-5-23 1898 Humboldt Alder Point 243 Comment
  UC1198596  Linanthus androsaceus Joseph P. Tracy 1927-6-12 8168 Humboldt Horse Mountain Northern Coast Ranges 1066 Comment
  UC906690  Linanthus bicolor Joseph P. Tracy 1942-5-16 17344 Humboldt Garberville 152 Comment
  JEPS58445  Linanthus harknessii Joseph P. Tracy 1933-7-25 12832 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC98065  Linnaea borealis Cara Witte 2007-7-12 523 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  HSC39076  Listera caurina J. D. Ackerman 1976-7-3 764 Humboldt 1 mi. E of Blue Lake along old state Hwy. 299. Simpson Demonstration Forest, near hwy. Comment
  HSC48978  Listera caurina Rudolf W. Becking 1979-7-15 Humboldt Fish Lake Comment
  JEPS8444  Listera caurina Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3415 Humboldt ridge between Mad River and Redwood Creek; Snow Camp, Bald Mountain ridge 1432 Comment
  UC302158  Listera convallarioides Joseph P. Tracy 1926-6-27 7690 Humboldt Horse Mountain Northern Coast Ranges 1219 Comment
  HSC45233  Listera convallarioides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3604 Humboldt Alder Springs 1524 Comment
  HSC104405  Listera cordata Arthur C. Grupe 2013-4-20 11 Humboldt Near Lord Ellis Summit; along Snow Camp Rd., ~500 ft. SE of its junction with Old Hwy. 200 701 Comment
  HSC49390  Listera cordata var. nephrophylla R. York 1979-4-21 245 Humboldt Behind the town of Korbel, Camp Bauer Comment
  RSA1900  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1930-10-29 1783 Humboldt Old Coast Road, 4 mi. so. of Honeydew Post Office. 305 Comment
  UC1225788  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-9-20 18224 Humboldt Willow Creek Canyon; along Trinity Highway 457 Comment
  UC1196501  Lithophragma affine Joseph P. Tracy 1921-4-30 6015 Humboldt Trinity River Valley near Willow Creek (Northern Coast Ranges); , Trinity River Valley, nr Willow Creek 152 Comment
  HSC102135  Lithophragma campanulatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1039 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA183524  Lithophragma heterophyllum D. E. Anderson 1965-5-8 3649 Humboldt 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  UC1225759  Lobularia maritima Joseph P. Tracy 1946-6-2 17556 Humboldt near Somoa (on Humboldt Bay); Humboldt Bay 6 Comment
  UC1199421  Logfia gallica Joseph P. Tracy 1929-6-3 8604 Humboldt near South Fork; Trinity River Valley 182 Comment
  CAS-BOT-BC342350  Logfia gallica Henry M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  UC50707  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5606 B Humboldt Arcata Comment
  CAS-BOT-BC283409  Lolium multiflorum Brant Rogers; Arnold Tiehm 1978-6-28 1058 Humboldt Virgin Valley. Pasture just S of Range HQ Duffurena Ranch 1472 Comment
  HSC72637  Lolium perenne J. P. Smith 1977-7-3 9246 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  UC1222756  Lomatium macrocarpum Joseph P. Tracy 1950-6-15 18823 Humboldt n.e. side Mail Ridge (at Huestis Rock); , Huestis Rock Comment
  HSC71822  Lomatium macrocarpum Thomas W. Nelson, Jane P. Nelson 1980-6-27 5937 Humboldt Along old trail to pond above Alder Spring, 0.5 mi. N of campground 1555 Comment
  HSC44440  Lomatium tracyi Barbara Kelly 1978-5-1 590 Humboldt 1/4 mi. from Horse Mtn., road 1/2 mi. below turnoff to summit, near end of unused gravel road Comment
  UC1197146  Lomatium triternatum var. triternatum Joseph P. Tracy 1930-7-10 8875 Humboldt Northern Coast Ranges, Brannan Mt. 1066 Comment
  JEPS118113  Lomatium utriculatum Dean W. Taylor 2005-6-9 19338 Humboldt vicinity Larabee Valley; ridge dividing Swift Creek from Horse Creek, ca. 2 air miles SSE of Larabee Valley 853 Comment
  JEPS17553  Lomatium utriculatum Joseph P. Tracy 1923-7-4 6525 Humboldt Northern Coast Ranges, South Yager Creek Valley 762 Comment
  UC906652  Lomatium utriculatum Joseph P. Tracy 1947-6-8 17707 Humboldt 5 mi. e. Carlotta (open flat by old Strong's District School House) 45 Comment
  UC1239546  Lonicera ciliosa Joseph P. Tracy 1930-7-19 9086 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC57445  Lonicera conjugialis G. L. Clifton, Terry Griswold 1979-7-26 10251 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC3955  Lonicera hispidula var. vacillans J. Allen DeCou 1899-6-4 Humboldt Comment
  UC1125245  Lonicera hispidula var. vacillans H. L. Person 1932-7-23 N.w.S 16 Humboldt road e Korbel; Eureka Quadrangle Comment
  HSC91605  Lonicera involucrata E. Mackey 1986-5-13 Humboldt Patrick's Point State Park. Comment
  HSC3927  Lonicera involucrata var. ledebourii H. E. Parks May 1936 5675 Humboldt Spruce Cove, Trinidad. Comment
  UC179941  Lotus aboriginus Joseph P. Tracy 1914-7-5 4576 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC162609  Lotus aboriginus Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5618 Humboldt Bald Mt. North Coast Ranges Comment
  HSC97498  Lotus micranthus Cara Witte 2007-5-21 60 Humboldt White Oak Opening. 1257 Comment
  UC168699  Lotus scoparius J. P. Tracy 1912-7-23 3801 Humboldt 3 mi above mouth of South Fork of Eel River; South Fork of Eel River 30 Comment
  SEINET3559880 Image available Lotus tenuis Joseph P. Tracy 1950-9-22 19345 Humboldt Field's Landing, 2 mi S of town 6 Comment
  UCSB30590  Lotus uliginosus Edwards, David 1974-8-12 Humboldt North side of 7th St. just W of its overpass of U.S. 101, Arcata 18 Comment
  UC1197306  Lotus wrangelianus Joseph P. Tracy 1931-6-14 9578 Humboldt Alton, along Van Duzen River North Coast Ranges, Van Duzen River 30 Comment
  UC1223411  Lotus yollabolliensis Joseph P. Tracy 1941-8-28 17048 Humboldt near Blake Lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  SEINET12151354  Lotus yollabolliensis J. P. Tracy 1941-1 17048 Humboldt South Fork Mtn, nr Blake Lookout 1737 Comment
  CAS-BOT-BC342558  Luina hypoleuca Carl B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 mi. above Orleans Comment
  CAS-BOT-BC198263  Lupinus Doris Kildale Gillespie 1931-6-7 10598 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  UC15888  Lupinus adsurgens Chesnut and Drew 1888-7-21 Humboldt South Fork Mt.; ; S of Fort Mt., Humboldt Co. Comment
  RSA167379  Lupinus albicaulis var. shastensis Joseph P. Tracy 1949-8-7 18433 Humboldt On road from Hoopa to Box Camp at summit of ridge near where the road to Big Hill turns off. Comment
  UC1223271  Lupinus albifrons Joseph P. Tracy 1939-5-14 16289 Humboldt opposite Buck Mountain (near Dinsmore's); Van Duzen River, near Dinsmore's 762 Comment
  HSC14769  Lupinus arboreus R. Spellenberg 1964-6-15 410 Humboldt Near Humboldt Bay on the S side of Arcata. Comment
  HSC14778  Lupinus arboreus R. A. Rasp 1964-5-17 39 Humboldt 1/2 mi. N of Fairhaven on the Samoa pennisula Comment
  UC503006  Lupinus arboreus Joseph P. Tracy 1932-5-16 10104 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, on Humboldt Bay 6 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
  CAS-BOT-BC205381  Lupinus elmeri Joseph P. Tracy 1930-7-16 8954 Humboldt South Fork Mountain; open glades along summit near Blake lookout 1737 Comment
  HSC31819  Lupinus latifolius Donald Spalinger 1974-4-25 24 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  RSA167420  Lupinus latifolius subsp. latifolius Joseph P. Tracy 1933-8-30 13032 Humboldt Grouse Mountain, near Clear Lake. 1524 Comment
  UC169321  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-7-21 3766 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  SEINET12154580  Lupinus lepidus H. P. Chandler 1901-1 1498 Humboldt Klamath River 427 Comment
  UC1299159  Lupinus lepidus var. lobbii Freed W. Hoffman 1949-7-16 2830 Humboldt in Mt. Lassic area on Pine Mountain (eastern Humboldt County); North Coast Ranges, Mt. Lassic area, Pine Mountain 1524 Comment
  UC169350  Lupinus luteolus Joseph P. Tracy 1912-7-26 3871 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET10486156  Lupinus polycarpus Charles R. Gunn 1963-6-3 Gunn 2702 Humboldt 1/2 mi s of korbel on gravel road. In ditch along south mad river. Comment
  UC865174  Lupinus polyphyllus var. polyphyllus Eliz. Parsons Hawver June 1915 Humboldt Carlotta Comment
  HSC74400  Lupinus sellulus subsp. ursinus Gail Newton 1980-6-28 734 Humboldt Near Mad River Butte. 1536 Comment
  UC502994 Image available Lupinus tracyi Joseph P. Tracy 1932-7-15 10598 Humboldt ridges e Corral Prairie; Klamath Mountains; ridges E of Corral Prairie, Trinity Summit, Klamath Mts., Humboldt Co. 1828 Comment
  RSA87079  Lupinus vallicola subsp. apricus F. W. Peirson 1923-7-10 4221 Humboldt Garberville Comment
  HSC23088  Luzula comosa D. E. Anderson 1965-5-1 3565 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC40816  Luzula comosa Thomas W. Nelson, Jane P. Nelson 1976-6-22 2863 Humboldt Along Rd. to Goat Hill. 1646 Comment
  HSC70225  Luzula comosa M. A. Baker 1980-6-8 1886 Humboldt Near Buck Flat. 1554 Comment
  HSC70758  Luzula comosa R. York 1980-5-17 525 Humboldt Near Le Perron Peak 792 Comment
  HSC74630  Luzula comosa M. A. Baker 1980-5-17 1239 Humboldt Near Le Perron Peak 1066 Comment
  HSC14125  Luzula comosa Francis Winter 1960-5-7 Humboldt E end Arbor Camp Ridge 915 Comment
  UC1103679  Luzula comosa var. laxa Joseph P. Tracy 1918-5-12 4930 Humboldt Northern Coast Ranges at Eureka. Edge of woods near Cutten and McDonald Tract 0 Comment
  UCR263353  Luzula subsessilis Peter F. Zika 2011-7-3 25492 Humboldt Outer North Coast Ranges (NCoRo), Titlow Hill Road, 3.0 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain 1310 Comment
  JEPS19059  Lycopodium clavatum C. C. Marshall 1890-1 97 Humboldt Comment
  RSA210023  Lycopodium clavatum H. E. Parks, W. C. Parks 1932-7-30 1132 Humboldt Camp 21, Hammond Lumber Compant. Trinidad. Humboldt County. Altitude 500 feet. 152 Comment
  UC302313  Lycopodium clavatum unknown Humboldt Northern Coast Region Comment
  RSA47156  Lycopus uniflorus Doris K. Kildale 1926-7-16 2385 Humboldt Big Lagoon Comment
  HSC93250  Lysichiton americanus Gordon Leppig 1998-3-9 712 Humboldt Arcata, Alder Grove Pond, E side 12 Comment
  HSC99631  Lysichiton americanus Gordon Leppig 1998-3-25 728 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC34698  Lythrum hyssopifolia Thomas W. Nelson 1974-9-12 1706 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata Comment
  HSC78755  Lythrum hyssopifolia L. P. Janeway, Paul Wilson 1984-5-25 821 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  HSC60076  Madia elegans M. A. Baker 1978-5-6 499 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC494086  Madia elegans H. E. Parks and J. P. Tracy 1930-5-25 882 Humboldt Laribee Valley Comment
  UC176862  Madia elegans Joseph P. Tracy 1911-7-6 3355 Humboldt between Three Creeks and mouth of Willow Creek 762 Comment
  CAS-BOT-BC343022  Madia gracilis Ira L. Wiggins 1930-7-11 4679 Humboldt Near Samoa Comment
  HSC35609  Madia gracilis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2021 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  POM54277  Madia gracilis subsp. gracilis M. H. Manning 1902-06 s.n. Humboldt Hupa Comment
  POM284946  Madia madioides Lyman Benson 1929-7-16 1868 Humboldt Weott Ranger Station. Comment
  HSC100559  Maianthemum bifolium Carl C. Marshall May 1886 213 Humboldt Woods everywhere, Humboldt Bay. Comment
  UC212992  Maianthemum dilatatum Joseph P. Tracy 1920-4-25 5316 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UCD139044  Maianthemum dilatatum Linda M. Barker 1976-5-13 1484 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  JEPS79931  Maianthemum dilatatum Joseph P. Tracy 1926-4-25 7414 Humboldt Grizzly Creek on Van Duzen R. Northern Coast Ranges, Van Duzen R., Grizzly Creek 91 Comment
  SEINET12050376  Maianthemum dilatatum F. H. Utech 1988-1 88 -272 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  HSC38998  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson, Jane P. Nelson 1976-5-31 2658 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  RSA289948  Maianthemum racemosum subsp. amplexicaule Lincoln Constance 1934-6-2 793 Humboldt Bull Creek road to mouth of Bull Creek, and up Bull Creek. Bull Creek region, South Fork Eel River Comment
  HSC97576  Maianthemum stellatum Cara Witte 2007-5-29 134 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  HSC98155  Maianthemum stellatum F. B. Plett 1963-4-21 19 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  RSA407376  Maianthemum stellatum Lyman Benson 1929-7-19 1859 Humboldt Dyerville to Matole River. Comment
  HSC60291  Maianthemum stellatum Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  RSA0009485  Maianthemum stellatum Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville. Comment
  UC479395  Malacothrix floccifera Marcus E. Jones, A. M. 1931-7-15 29095 Humboldt e of Arcata (junction) Comment
  UC1197978  Malva neglecta Joseph P. Tracy 1912-7-26 3876 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC18729  Malva nicaeensis C. C. Marshall 1888-1 Humboldt in Humboldt County Humboldt County Comment
  HSC7030  Marah oregana S. J. Hawks 1965-4-6 17 Humboldt Luffenholtz Beach Comment
  HSC89517  Marah oregana M. Roantree 1985-6-11 91 Humboldt E side of Trinidad Head Comment
  HSC93221  Marah oregana Gordon Leppig 1998-3-16 720 Humboldt McKinleyville, near end of Fischer Ave. at the Hammond Trail entrance 18 Comment
  RSA239725  Marah oregana Larry E. DeBuhr, Gary D. Wallace 1973-5-19 1116 Humboldt Prairie Creek Redwood State Park; along Gold Bluff Beach. Comment
  UC162807  Medicago arabica J. P. Tracy 1907-5-10 2560 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC14987  Medicago lupulina J. E. Lankilla 1962-5-14 29 Humboldt West bank of river 1/2 mi. S of Fernbridge Comment
  HSC71442  Medicago lupulina J. P. Smith 1971-10-9 5003 Humboldt Mad River above the Fish Hatchery. Comment
  UC16095  Medicago polymorpha J. Burtt Davy 1899-6-15 5531 Humboldt around Scotia; North Coast Ranges Comment
  HSC99797  Melianthus major Gordon Leppig 2005-1-6 2201 Humboldt PALCO timberlands, Van Duzen watershed, Fox Creek Drainage, 10 m E of Fox Creek Rd. on Rd. L35 60 Comment
  UC1103761  Melica fugax Joseph P. Tracy 1913-6-17 4193 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  HSC26614  Melica harfordii J. P. Smith, Steve Selva 1970-6-14 3848 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1103756  Melica harfordii Joseph P. Tracy 1919-5-31 5172 Humboldt Willow Creek Northern Coast Ranges, Trinity River (hill slopes at w side of Trinity River) 152 Comment
  UC188817  Melica harfordii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 5210 Humboldt Russ Ranch Comment
  UCD87511  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road. Comment
  CAS-BOT-BC281004  Melica spectabilis Joseph P. Tracy 1932-7-12 10445 Humboldt Klamath Mts,Trinity Summit. At Corral Prairie 1524 Comment
  CAS-BOT-BC262467  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt North Coast Ranges. Dobbyn Creek 152 Comment
  HSC10348  Melica subulata G. N. Bos 1965-5-15 253 Humboldt 8 mi. W of Berry Summit, along Hwy. 299 762 Comment
  HSC58679  Melica subulata G. L. Clifton, Griswold 1979-8-2 12213 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1152008  Melica subulata A. H. Murphy 1951-5-15 30 Humboldt 0.5 mi s South Fork of McCann Road Comment
  HSC59671  Melilotus albus George Kirn 1977-10-21 Humboldt Eureka, Bayfront, 1/2 mi. E of Hwy. 255 8 Comment
  HSC98074  Melilotus albus Cara Witte 2007-7-12 529 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  HSC12565  Mentha pulegium D. La Conte 1970-7-7 1 Humboldt Comment
  JEPS63454  Mentha pulegium Joseph P. Tracy 1936-8-2 15078 Humboldt Orick 15 Comment
  UC1225836  Mentha pulegium Joseph P. Tracy 1946-8-25 17642 Humboldt along Eel River Grizzly Bluff; Eel River 18 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
  UC1239695  Mentha pulegium Joseph P. Tracy 1934-8-14 13566 Humboldt Eel River Alton to Fortuna (on gravel bars); Eel River 15 Comment
  RSA167435  Mentha spicata Joseph P. Tracy 1950-9-22 19370 Humboldt Klamath River near Slate Creek; below Orleans 8 miles. 122 Comment
  JEPS42754  Mentzelia dispersa Joseph P. Tracy 1937-7-24 15521 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  UC166483  Mentzelia laevicaulis var. laevicaulis Joseph P. Tracy 1908-6 2933 Humboldt Opposite Buck Mountain; Northern Coast Ranges,Valley of Van Duzen River 762 Comment
  UC1225906  Menziesia ferruginea Joseph P. Tracy 1947-5-24 17687 Humboldt Big Lagoon 15 Comment
  RSA167437  Micropus californicus Joseph P. Tracy 1947-5-10 17681 Humboldt Near Briceland Comment
  CHSC35518  Micropus californicus var. californicus Thomas Nelson; James Nelson 1976-5-30 2621 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC38098  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1976-5-30 2621 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC322681  Microseris laciniata Harley P. Chandler 1901-6-1 1408 Humboldt Klamath River 243 Comment
  HSC73770  Microseris nutans M. A. Baker 1980-6-7 1777 Humboldt Near Brush Mtn. 1128 Comment
  UC582734  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  POM193012  Microsteris gracilis subsp. gracilis H. E. Parks, Joseph P. Tracy 1930-5-25 0795 Humboldt Laribee Valley. 793 Comment
  UC582708  Mimulus arvensis H. E. Parks and Joseph P. Tracy 1931-5-9 12541 Humboldt near Miranda 60 Comment
  HSC75454  Mimulus breweri J. O. Sawyer 1980-7-18 3591 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC12696  Mimulus dentatus Jana Kattenhorn 1970-10-28 153 Humboldt Mad River at the mouth of Lindsey Creek. North Bank Rd. off Hwy. 299 Comment
  SEINET12269811  Mimulus dentatus Unknown 1936-1 13277 Humboldt near Trinidad Comment
  UC1196774  Mimulus dentatus J. P. Tracy 1901-6-10 1126 Humboldt Forest Park Eureka 0 Comment
  UC198662  Mimulus douglasii Joseph P. Tracy 1915-5-20 4639 Humboldt Eureka Northern Coast Ranges Comment
  UC147884  Mimulus grandis J. P. Tracy 1903-6-14 1923 Humboldt immediate vicinity Eureka 0 Comment
  BLMAR73  Mimulus guttatus Jennifer Anthony-Wheeler 1994-5-25 73 Humboldt King range, growing along lighthse rd 1/4 mi from Mattole beach 6 Comment
  HSC20748  Mimulus guttatus W. A. Heaton 1965-5-17 7 Humboldt 0.5 mi. N of Trinidad St. Park near beach Comment
  UC1011937  Mimulus guttatus F. W. Pennell and J. P. Tracy 1940-7-7 26087 Humboldt headwaters Willow Creek (Route 299) 762 Comment
  UC175794  Mimulus guttatus Joseph P. Tracy 1912-6-16 3704 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region 0 Comment
  UC147915  Mimulus inodorus J. P. Tracy 1900-8-5 912 Humboldt immediate vicinity Eureka 0 Comment
  UC582713  Mimulus inodorus Joseph P. Tracy 1932-7-16 10610 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1196811  Mimulus kelloggii Joseph P. Tracy 1908-6 2938 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  UC444807  Mimulus kelloggii Joseph P. Tracy July, 1908 2760 Humboldt near Low Gap (ridge between Van Duzen River and Mad River) 914 Comment
  RSA54140  Mimulus layneae H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail. 1524 Comment
  UC1222804  Mimulus layneae Joseph P. Tracy 1950-7-1 18955 Humboldt Friday Ridge 1219 Comment
  HSC102582  Mimulus moschatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1569 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC56317  Mimulus moschatus Overton, Butler 1979-8-2 12656 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74453  Mimulus nanus var. nanus Gail Newton 1980-8-10 1994 Humboldt Near Blake Mtn. 1798 Comment
  UC582710  Mimulus nasutus Joseph P. Tracy 1933-5-20 12252 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  HSC100674  Mimulus nasutus Carl C. Marshall 434 Humboldt Mtns. of Humboldt, open ridges near water. Comment
  UC1103333  Mimulus pulsiferae Joseph P. Tracy 1933-7-25 12834 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  SEINET6904196  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  POM192727  Minuartia cismontana H. E. Parks, Joseph P. Tracy 1930-5-25 0866 Humboldt Laribee Valley. Comment
  UC668119  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1935-7-30 14353 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC48149  Mitella caulescens Volney Rattan 1882-6-1 s.n. Humboldt Coast Mts. North of San Francisco Bay - Near Boulder Cr. Comment
  UC1198868  Mitella diversifolia Joseph P. Tracy 1937-7-2 15412 Humboldt Little Hors-Linto Creek Trinity Summit (head) 1371 Comment
  HSC102031  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 933 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC102181  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1095 Humboldt Patterson Meadows 1566 Comment
  UC18805  Modiola caroliniana Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6176 Humboldt near Ferndale; North-Western California Comment
  HSC67209  Moehringia macrophylla Thomas W. Nelson, James Nelson 1980-6-10 5437 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC72792  Moehringia macrophylla M. A. Baker 1980-6-16 1931 Humboldt Near Monks Camp 109 Comment
  HSC96945  Moehringia macrophylla Ryoko Ito, Shauna McDonald 2007-6-13 8 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  HSC57989  Monardella odoratissima G. L. Clifton, Griswold 1979-7-31 11732 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC102085  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 989 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC32590  Monardella odoratissima subsp. pallida Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  RSA0022787  Monardella villosa subsp. subserrata Carl B. Wolf 1934-7-3 5923 Humboldt Weitchpec (junction of Klamath and Trinity Rivers). 200 yards west of school. 152 Comment
  JEPS63367  Monardella villosa subsp. villosa W. L. Jepson 1936-8-12 17883 Humboldt Philipsville South Fork Eel River. Comment
  HSC26743  Moneses uniflora K. Irwin 1973-6-19 Humboldt S of road to Fern Canyon Comment
  UC535774  Monotropa hypopitys Eleanor Armstrong 1934-8-1 1171 Humboldt Richardson Grove Comment
  CAS-BOT-BC444805  Montia diffusa Volney Rattan 1882-1-1 s.n. Humboldt Unspecified Comment
  HSC55129  Montia parvifolia G. L. Clifton, Terry Griswold 1979-8-1 11934 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  CAS-BOT-BC445149  Montia parvifolia Volney Rattan No date on label s.n. Humboldt Unspecified Comment
  CAS-BOT-BC445156  Montia parvifolia Doris K. Kildale 1925-6-14 671 Humboldt Yager Creek near mouth Comment
  HSC17671  Montia parvifolia Doris K. Kildale 1925-6-14 671 Humboldt Yager Comment
  HSC17672  Montia parvifolia C. E. Fellows 1957-4-27 128 Humboldt 1 mi. W of Honeydew Comment
  UC673005  Montia parvifolia Joseph P. Tracy 1933-5-20 12215 Humboldt s of Ferndale (Wild Cat Ridge); Wild Cat Ridge 304 Comment
  CAS-BOT-BC260573  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  HSC102098  Muhlenbergia filiformis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 985 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UCD86796  Muhlenbergia mexicana Eleanor Armstrong 1934-1 1149 Humboldt Richardson Grove. Comment
  UC1222234  Myosotis discolor Joseph P. Tracy 1942-5-16 17354 Humboldt 1 mi. n.e. Garberville (on rd. to Harris) 304 Comment
  UC552838  Myosotis discolor Joseph P. Tracy 1935-5-25 13847 Humboldt Fort Seward North Coast Ranges, Fort Seward 106 Comment
  CHSC162  Myosotis latifolia S. Ptomey 1911-5-1 Humboldt Comment
  HSC59201  Myosotis sylvatica Terry Roth 1979-5-20 66 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  RSA47091  Myrica californica Doris K. Kildale 1926-11-28 2866 Humboldt Patrick s Point Comment
  SEINET6671232 Image available Myrica californica W. C. Muenscher, M. W. Muencher 1939-1 15081 Humboldt Near Creck Comment
  HSC48727  Myriophyllum sibiricum W. B. Strickland 1968-3-28 Humboldt McClellan Mtn. Rd., off Hwy. 36 above Bridgeville 457 Comment
  HSC91593  Narcissus tazetta E. Mackey 1986-7-21 Humboldt Patrick's Point State Park near Ceremonial Rock. Comment
  UC535743  Narthecium californicum Eleanor Armstrong 1934-1 1176 Humboldt Patricks Point Comment
Read comments
Dec 5 2007
  UC1152040  Nassella pulchra A. H. Murphy 1951-3-30 Humboldt along roadside near Mattole River Grange Hall; Mattole Valley Comment
  HSC45289  Navarretia capillaris Brad Klipfel 1973-6-10 293 Humboldt E face of Grogan's Hole, N Trinity Mtn. area Comment
  HSC99451  Navarretia divaricata subsp. divaricata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 101 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
  JEPS70338  Navarretia intertexta Lincoln Constance 1934-5-27 697 Humboldt s end Dyerville Bridge (South Fork Eel River); , Bull Creek Region 45 Comment
  HSC100597  Navarretia intertexta Carl C. Marshall Jun 1887 455 Humboldt Jewett Creek hills. Comment
  POM208984  Navarretia intertexta Lincoln Constance 1934-5-27 697 Humboldt Sandbar of south fork of Eel River at Dyerville bridge 43 Comment
  JEPS69509  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC1197896  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1933-7-9 12646 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  HSC35861  Navarretia mellita Thomas W. Nelson, James Nelson 1975-8-5 2132 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  UC906680  Navarretia tagetina Joseph P. Tracy 1942-7-18 17289 Humboldt Garberville 152 Comment
  UC198643  Navarretia tagetina Joseph P. Tracy 1916-6-19 4709 Humboldt Forks of Dobbyn Creek Northern Coast Ranges 182 Comment
  CHSC19477  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 miles north of Willow Creek along road on east 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
  UC249525  Nemophila menziesii var. atomaria Joseph P. Tracy 1922-4-30 6026 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, , nr Willow Creek 152 Comment
  CAS-BOT-BC219405  Nemophila parviflora Doris K. Kildale 1927-3-20 2915 Humboldt Philipsville [Phillipsville], South Fork of Eel River 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
  HSC71030  Nemophila pedunculata Thomas W. Nelson 1977-4-20 3322 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  UC198640  Nemophila pedunculata Joseph P. Tracy 1917-5-27 4784 Humboldt Eureka Northern Coast Ranges, at Eureka 0 Comment
  CDA20507  Noccaea fendleri subsp. californica P. Haggard 2004-8-3 PDR 1285924 Humboldt Northwestern California; Along Friday Ridge Rd in Blue Lake. 0 Comment
  HSC99078  Notholithocarpus densiflorus var. echinoides Cara Witte 2008-7-25 940 Humboldt Forest Service Road 5N10. Approximately 1.5 miles north of intersection with Forest Service Road 5N10C. 1319 Comment
  HSC16162  Nuphar polysepala D. B. Bader 1963-3-29 5 Humboldt Second of the Clam beach lagoons, W of Hwy. 101 Comment
  HSC41451  Nuphar polysepala Charles Eugene 1975-11-23 751123 .1 Humboldt Sweasey Lake, 11 mi. NW of Mt. Lassic (Signal Peak) 884 Comment
  RSA183592  Oemleria cerasiformis D. E. Anderson 1965-4-24 3536 Humboldt Along Titlow Hill Road, about 2 miles from its junction with Highway 299. Comment
  UC1039818  Oemleria cerasiformis J. I. Mallory 1956-4-27 127 Humboldt 1.5 mi w Petrolia (at head of Jeffrey Gulch); Jeffrey Gulch 167 Comment
  UC1222315  Oemleria cerasiformis Joseph P. Tracy 1950-4-20 18618 Humboldt 2 mi w Dinsmore's (nw slope of Buck Mountain, lower slopes); Buck Mountain 762 Comment
  UC902146  Oemleria cerasiformis Joseph P. Tracy 1946-5-30 17550 Humboldt Carlotta; flat by old Strong's District School House, 5 mi e of town 60 Comment
  UCD127738  Oenanthe sarmentosa Linda M. Barker 1976-8-24 1686 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CDA38485  Oenanthe sarmentosa Tario 1932-9-21 s.n. Humboldt Arcata. 0 Comment
  CAS-BOT-BC502775  Orobanche californica subsp. californica J. Clausen 1932-9-18 690 Humboldt About 5 mi S of Cape Mendocino Lighthouse Comment
  RSA0059232  Orobanche californica subsp. californica Harold E. Parks, Joseph P. Tracy 1924-8-3 6761 Humboldt Big Lagoon. 6 Comment
  UC1197447  Orobanche californica subsp. californica Joseph P. Tracy 1939-8-6 16398 Humboldt Big Lagoon. Comment
  BLMAR257  Orobanche pinorum Jennifer Anthony-Wheeler 1997-7-10 257 Humboldt King range, UNCOMMON, parasitized ocean spray, growing on rocky, open forest slope 304 Comment
  UC1197442  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1941-4-26 16865 Humboldt Kneeland Prairie. Comment
  UC1197445  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1948-5-31 18004 Humboldt Near Harris. Comment
  SEINET200762  Orogenia fusiformis Joseph P. Tracy 1942-6-23 17252 Humboldt Near top west of Water-Dog Lakes Trinity Summit. 1829 Comment
  HSC48857  Orthilia secunda Brad Klipfel 1973-7-15 200 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA30598  Orthocarpus attenuatus Lincoln Constance, R. C. Rollins 1942-5-12 2891 Humboldt Klamath River 1 mile south of Orleans. 122 Comment
  RSA0006077  Orthocarpus castillejoides var. humboldtiensis Philip A. Munz 1925-6-20 9890 Humboldt Eureka. Comment
  HSC102044  Orthocarpus imbricatus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 947 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC48745  Osmorhiza berteroi Brad Klipfel 1973-6-16 82 Humboldt Along ridge trail SE of N Trinity Mountain 1829 Comment
  HSC56230  Osmorhiza occidentalis G. L. Clifton, Terry Griswold 1979-8-2 12298 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC65513  Osmorhiza occidentalis M. A. Baker 1980-6-8 1907 Humboldt Near Buck Flat. 1554 Comment
  UC183665  Osmorhiza occidentalis Joseph P. Tracy 1913-6-20 4238 Humboldt Buck Mountain Northern Coast Ranges (lower foothills, on nw slope) 762 Comment
  CHSC19520  Oxalis oregana R. D. Modafferi 1965-5-1 66 Humboldt 0.5 mile south of Trinidad on old highway 101. Roadside. Comment
  JEPS43138  Oxalis oregana W. L. Jepson 1934-5-7 16696 Humboldt Bull Creek Comment
  UC1130248  Oxalis oregana H. L. Person 1932-8-1 Humboldt Korbel Eureka quad Comment
  HSC55133  Oxalis trilliifolia G. L. Clifton, Griswold 1979-8-1 11967 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC64217  Oxalis trilliifolia J. O. Sawyer, M. A. Ericksen 1979-6-23 3384 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  RSA20792  Oxalis trilliifolia Carl B. Wolf 1937-8-13 9257 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  SEINET3347162 Image available Oxalis trilliifolia A. A. Heller 13787 Humboldt Humbolt Camp, between Scotia and Pepperwood Comment
  CHSC414  Packera bolanderi var. bolanderi M. Underhill 1952-7-12 Humboldt 121 Comment
  HSC96581  Packera bolanderi var. bolanderi Gordon Leppig, Maralyn A. Renner 2005-6-7 2246 Humboldt Pacific Lumber Company land. Redwood House Rd., Hely Creek watershed 363 Comment
  UC196966  Panicum acuminatum var. acuminatum Joseph P. Tracy 1915-6-6 4645 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 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
  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
  HSC94174  Parapholis incurva Gordon Leppig, Sylvia Leppig 2000-5-29 1385 Humboldt Trinidad Harbor. 4 Comment
  RSA246670  Parentucellia viscosa Robert F. Thorne, Percy C. Everett 1965-8-7 35202 Humboldt Samoa Peninsula. Near sea level. Comment
  RSA516351  Parentucellia viscosa Barbara Ertter, Tom Delendick 1987-5-16 6915 Humboldt Hwy 299, ca 8 mi E of Arcata, 9.5 mi W of Lord Ellis summit. Comment
  HSC104072  Parnassia palustris S. Carothers 2001-8-29 Humboldt Six Rivers National Forest; Lassics Botanical Area 1537 Comment
  UC1145169  Paspalum distichum Joseph P. Tracy 1939-10-6 16505 Humboldt w of Sunset Cemetary Eureka (Eureka) 6 Comment
  HSC99423  Paxistima myrsinites K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-1 72 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
  HSC100679  Pedicularis densiflora Carl C. Marshall Apr 1887 379 Humboldt Hoopa Valley. Comment
  JEPS10352  Pedicularis densiflora Joseph P. Tracy 1926-5-2 7426 Humboldt near the South Fork; Trinity River Valley 182 Comment
  BLMAR286  Pedicularis densiflora Jennifer Anthony-Wheeler 2000-4-18 286 Humboldt King range, mill creek forest 402 Comment
  CHSC3181  Pedicularis groenlandica Robert D. Briggs 1966-5-8 R- 187 Humboldt 1/4 mile south of Summit- 18 miles west of Willow Creek, on State 299. Comment
  HSC99452  Pedicularis groenlandica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 102 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC1212145  Pedicularis racemosa Francia Chisaki, Helen K. Sharsmith 1959-8-22 4754 Humboldt Happy Camp, just over Trinity County line Happy Camp; Inner North Coast Ranges 914 Comment
  RSA187565  Pellaea andromedifolia S. K. Harris 1960-7-11 21651 Humboldt 3.8 miles west of Redway Comment
  SEINET13262761  Pellaea densa Unknown 1912-7-26 3849 Humboldt KNEELAND PRAIRIE 762 Comment
  HSC1074  Pellaea mucronata var. mucronata J. P. Tracy 1933-6-13 12561 Humboldt Hoopa Mtn., near summit on rd. from Hoopa westward to Bair's 1067 Comment
  HSC102049  Penstemon anguineus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 953 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  UC41734  Penstemon anguineus Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  HSC60084  Penstemon deustus M. A. Baker 1978-5-6 486 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC74482  Penstemon deustus Gail Newton 1980-7-24 1767 Humboldt Near Somes Mtn. 1615 Comment
  RSA60491  Penstemon deustus subsp. deustus John H. Thomas 1949-6-12 902 Humboldt Near Klamath River, 1/2 mile N of town of Orleans Comment
  HSC74399  Penstemon laetus subsp. sagittatus Gail Newton 1980-6-28 731 Humboldt Near Mad River Butte. 1536 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
  UC1032475  Penstemon rattanii A. E. Wieslander 1931-5-21 213 Humboldt Kneeland China Flat Quad. Comment
  UC169849  Penstemon rattanii var. kleei V. Rattan 1870-1 Humboldt Comment
Read comments
Sep 7 2007
  HSC33659  Pentagramma triangularis M. Wetherwax 1975-6-1 174 Humboldt Along Butler Valley Rd. 0.5 mi. past the bridge over the Mad River Comment
  RSA0060250  Pentagramma triangularis H. S. Logsdon 1964-5-16 s.n. Humboldt 3.0 mi SE of Bayside on Jacoby Creek Rd. Comment
  UC642250  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1932-7-14 10542 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC906651  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1947-8-24 17894 Humboldt Box Camp Trinity Summit 1463 Comment
  HSC98551  Perideridia howellii Cara Witte 2007-8-1 613 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  HSC98965  Perideridia oregana Cara Witte 2008-7-28 943 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  HSC56012  Perideridia parishii subsp. latifolia Gilbert Muth 1979-7-31 11495 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC12557  Persicaria maculosa D. La Conte 1970-8-11 15 Humboldt Along side of creek intersecting Campton Rd. Comment
  HSC12023  Persicaria punctata D. Santana 1970-10-28 Humboldt Mad River off Essex Ln., Hwy. 299 Comment
  HSC6055  Petasites frigidus var. palmatus R. D. Modafferi 1965-4-8 35 Humboldt 1.3 mi. N of Trinidad on Trinity Street 305 Comment
  JEPS1444  Phacelia bolanderi Lincoln Constance 1934-5-26 687 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek region 45 Comment
  HSC23998  Phacelia bolanderi Tim Baroni 1971-6-25 44 Humboldt Comment
  CHSC110702  Phacelia corymbosa Dean Wm. Taylor 2004-6-24 19129 Humboldt North Coast Ranges. Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  HSC70344  Phacelia heterophylla Gail Newton 1980-6-7 122 Humboldt Near Brush Mtn. 1128 Comment
  POM127633  Phacelia heterophylla subsp. virgata H. P. Chandler 1901-05 1257 Humboldt Redwood belt. 152 Comment
  HSC58116  Phacelia mutabilis G. L. Clifton, Griswold 1979-8-1 12077 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  JEPS91346  Phacelia mutabilis Dean W. Taylor 1991-8-15 12299 Humboldt ridge 1 mile West of Horse Mountain, 1493 Comment
  UC203960  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1918-7-1 4983 Humboldt 3 mi s point of the cape; Northern Coast Ranges, Cape Mendocino 3 Comment
  UC902065  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1949-7-7 18333 Humboldt brushy roadsides Table Bluff 91 Comment
  HSC57441  Phacelia procera G. L. Clifton, Griswold 1979-7-26 10242 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  CAS-BOT-BC258964  Phalaris californica John Thomas Howell 1937-7-31 13718 Humboldt Between Redwood Creek and Korbel Comment
  CAS-BOT-BC76563  Philadelphus lewisii Harley P. Chandler 1901-6-1 1333 Humboldt Hupa Indian Reservation 152 Comment
  CAS-BOT-BC76572  Philadelphus lewisii A. A. Heller 1923-7-9 13776 Humboldt About 5 miles east of Arcata along the road to Blue Lake in teh redwood belt. Comment
  RSA0046048  Philadelphus lewisii Marcus E. Jones 1931-7-16 s.n. Humboldt Junction, East of Arcata. Comment
  RSA0046935  Philadelphus lewisii Joseph P. Tracy 1926-6-27 7696 Humboldt Horse Mountain. 1067 Comment
  RSA0057782  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt Summit of U.S. Hwy 299 btwn. Willow Creek and Blue Lake. Comment
  UC181260  Phleum alpinum Joseph P. Tracy 1913-7-20 4376 1/2 Humboldt ridge between Redwood Creek and Three Creeks (on Berry's ranch); Northern Coast Ranges, btw Redwood Creek and Three Creeks 914 Comment
  HSC99405  Phlox adsurgens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 54 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC102076  Phlox diffusa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 978 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS79944  Phlox diffusa Joseph P. Tracy 1932-7-18 10699 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  UC1191120  Phlox douglasii subsp. rigida Joseph P. Tracy 1933-7-25 12828 Humboldt Horse Mountain 1432 Comment
  RSA13440  Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Spruce Cove, Trinidad. Comment
  UC1198700  Physocarpus capitatus Joseph P. Tracy 1922-10-29 6133 Humboldt Alton 30 Comment
  CAS-BOT-BC78144  Picea breweriana Henry M. Pollard 1947-9-1 s.n. Humboldt North side of Somes Peak nr. Orleans 1618 Comment
  HSC1354  Picea sitchensis J. W. Johnson 1962-4-29 1295 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  UCD134684  Picea sitchensis Jo Ann Olson; Gary R. Robbins 1969-4-26 35 Humboldt North plateau above Fern Canyon, Prairie Creek Redwoods State Park. 60 Comment
  CAS-BOT-BC73290  Pinus contorta Ira L. Wiggins 1930-6-25 4620 Humboldt Sand dunes 2 miles north of Samoa. Comment
  HSC40304  Pinus contorta var. contorta Linda M. Barker 1976-7-5 1641 Humboldt 3 mi. W of Arcata. Comment
  JEPS64433  Piperia elegans W. L. Jepson 1921-8-11 9415 Humboldt Big Lagoon Comment
  JEPS79898  Piperia unalascensis Joseph P. Tracy 1932-7-12 10453 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC154179  Pityopus californicus Harley P. Chandler June, 1901 1299 Humboldt Hupa Indian Reservation North Coast Ranges 304 Comment
  POM126350  Plagiobothrys reticulatus Joseph P. Tracy 1911-6-30 3275 Humboldt Near Hydesville 61 Comment
  UC526826  Plagiobothrys reticulatus Joseph P. Tracy 1927-7-10 8245 Humboldt Alton North Coast Ranges, Alton 60 Comment
  JEPS60992  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1932-6-26 10274 Humboldt Fort Baker Ranch North Coast Ranges 762 Comment
  BLMAR262  Plantago lanceolata Jennifer Anthony-Wheeler 1998-7-14 262 Humboldt King range, strawberry rock grazing allotment 280 Comment
  SEINET14412274  Plantago major Joseph P. Tracy 1942-1 17300 Humboldt Fickle Hill, 6 miles southeast of Arcata 610 Comment
  UCD124527  Plantago major Joseph P. Tracy 1942-7-25 17300 Humboldt Fickle Hill. 6 miles SE of Arcata. 609 Comment
  HSC100588  Plantago maritima Carl C. Marshall Jun 1886 229 Humboldt Salt marshes. Comment
  HSC26450  Plantago maritima T. O. Osborne 1970-6-6 12 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  HSC83040  Plantago maritima A. L. Eicher 1986-5-10 Humboldt .3 mi. S of the junction of Samoa Blvd. and Vance Ave. 1 Comment
  HSC16831  Plantago subnuda J. P. Tracy 1906-6-17 2493 Humboldt Eureka 0 Comment
  HSC16832  Plantago subnuda Norman H. Moe 1962-5-17 Humboldt Lanphere's Place, next to Mad River Slough Comment
  JEPS6471  Plantago subnuda Rimo Bacigalupi and G. T. Robbins 1954-8-10 4760 Humboldt 0.4 mi s south boundary marker for Dry Lagoon Beach (along U.S. Highway 101); Dry Lagoon Beach Comment
  RSA20791  Platanthera leucostachys Carl B. Wolf 1937-8-13 9256 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  RSA12558  Platanthera stricta Carl B. Wolf 1934-7-2 5881 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC16799  Platystemon californicus P. N. Slattery 1963-4-27 42 Humboldt Clam Beach Comment
  HSC33745  Platystemon californicus A. M. Montalvo 1975-5-24 269 Humboldt Samoa Dunes, off Samoa Blvd. across from the boat landing Comment
  SEINET3124150 Image available Platystemon californicus Joseph P. Tracy 1904-5-1 2047 Humboldt Region about Humboldt Bay, sandy field at Bucksport 0 Comment
  CAS-BOT-BC91634  Platystemon californicus Joseph P. Tracy 1904-4-24 2020 Humboldt Northern Coast Region.. Humboldt Bay. Comment
  HSC16789  Platystemon californicus J. P. Tracy 1904-4-24 2020 Humboldt Humboldt Bay Comment
  SEINET780340  Plectritis A. Baker 1980-5-24 1450 Humboldt Comment
  SEINET780341  Plectritis M. A. Baker 1980-3-7 1151 Humboldt confluence of Pine and Burndt Ranch Creeks Comment
  JEPS5131  Plectritis brachystemon Lincoln Constance 1934-6-3 802 Humboldt 1 mi n of Dyerville (Road from High Rock (on Redwood Highway) to Horse Prairie, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  UC602532  Plectritis brachystemon Joseph P. Tracy 1936-7-5 15037 Humboldt North Coast Range, Grouse Mountain Grouse Mountain; North Coast Range, Grouse Mountain 1524 Comment
  UC1239574  Plectritis congesta Joseph P. Tracy 1916-4-30 4680 Humboldt Northern Coast Ranges, around Humboldt Bay, Salmon Creek Valley Salmon Creek Valley; Northern Coast Ranges, Salmon Creek Valley 60 Comment
  UC1239579  Plectritis congesta Joseph P. Tracy 1901-4-14 1016 Humboldt Ocean Beach at Humboldt Bay Ocean Beach Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CAS-BOT-BC458165  Pleuricospora fimbriolata Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1219 Comment
  HSC94001  Pleuropogon refractus Tony LaBanca 2000-3-24 1001 Humboldt 680 Comment
  SEINET200957 Image available Pleuropogon refractus J. P. Tracy 1932-7-14 10539 Humboldt Corral Prairie 1524 Comment
  UCD90106  Pleuropogon refractus R. Tofsrud 1949-7-22 s.n. Humboldt on road between Scotia and Capetown. Comment
  CDA32631  Pleuropogon refractus E. C. Whitney 1971-5-28 Humboldt North of Orick 0 Comment
  SACT001812  Poa bolanderi subsp. howellii H. Stinnett 1963-5-12 Humboldt open slopes Comment
  HSC10704  Poa douglasii R. H. Berg 1963-5-8 67 Humboldt On sand dunes near Lanphere's, Arcata. Comment
  HSC77908  Poa macrantha L. P. Janeway, Paul Wilson 1984-5-7 766 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  UCD91548  Poa macrantha Joseph P. Tracy 1947-7-3 17766 Humboldt at mouth of Little River. 6 Comment
  CHSC10131  Poa pratensis R. V. Papike 1962-5-25 32 Humboldt Lawns of Arcata. Along roads. 91 Comment
  HSC102626  Poa pratensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1612 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC70247  Poa pratensis M. A. Baker 1980-6-8 1916 Humboldt Near Buck Flat. 1554 Comment
  HSC74757  Poa pratensis Gail Newton 1981-7-24 2307 Humboldt Near Chaparral Mtn. 1433 Comment
  HSC102087  Poa secunda subsp. secunda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 990 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC74129  Poa secunda subsp. secunda R. York 1980-5-23 618 Humboldt Near Buck Mtn. 1524 Comment
  HSC98601  Poa secunda subsp. secunda Cara Witte 2007-6-4 183 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC180485  Poa secunda subsp. secunda Joseph P. Tracy 1913-5-4 4044 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC525668  Poa secunda subsp. secunda Joseph P. Tracy 1926-5-9 7469 Humboldt valley s of Yager Creek 762 Comment
  UCD91738  Poa secunda subsp. secunda A. H. Murphy 1951-4-18 s.n. Humboldt Tooby and Prior Ranch, Blocksburg. 457 Comment
  UCD92116  Poa trivialis Collector Unknown 1949-6-1 s.n. Humboldt Miranda. Comment
  RSA152381  Poa trivialis Joseph P. Tracy 1950-6-8 18723 Humboldt Bear River Ridge 610 Comment
  CAS-BOT-BC244207  Poa unilateralis Harley P. Chandler 1901-5-1 1140 Humboldt Humboldt Bay 3 Comment
  RSA10121  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad 61 Comment
  SEINET201043 Image available Poaceae Joseph P. Tracy 1923-6-19 6302 Humboldt Wilder ridge. 762 Comment
  HSC35937  Polygala californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2030 Humboldt French Camp, Bald Hills. Comment
  POM138540  Polygala californica H. P. Chandler 1901-06 1328 Humboldt Hupa Indian Reservation. 152 Comment
  HSC39221  Polygala californica D. E. Anderson, J. P. Smith 1971-7-6 - 1321 Humboldt E of Pine Ridge Summit Comment
  RSA21671  Polygala cornuta var. cornuta Carl B. Wolf 1937-8-13 9224 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New Road towards Trinity summit. 1220 Comment
  UC570808  Polygala cornuta var. cornuta H. L. Mason 1932-7-21 7110 Humboldt on road from Arcata to Weaverville; east slope of Southfork Mountains Comment
  RSA506995  Polygonum amphibium var. emersum H. E. Parks 1934-08 5165 Humboldt Hulmboldt County: Big Lagoon, Host of rust Comment
  UC672975  Polygonum aviculare subsp. depressum Joseph P. Tracy 1940-10-15 16754 Humboldt Willow Creek Canyon, along Trinity Highway 792 Comment
  HSC99420  Polygonum bistortoides K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 69 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
  UC672964  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1930-6-21 8779 Humboldt Larrabee Valley 731 Comment
  RSA191950  Polygonum paronychia Robert F. Thorne 1957-9-3 19013 Humboldt Little River Beach, few miles S of Trinidad. Comment
  UCSB15544  Polygonum paronychia Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay. Comment
  UC1222325  Polygonum parryi Joseph P. Tracy with Mr. Murphy 1951-6-26 19580 Humboldt Twin Lakes vicinity; (Snow Camp to Twin Lakes trip) Comment
  CDA2918  Polygonum sachalinense T. C. Fuller 1968-7-3 17447 Humboldt Northeast side of Highway 101 freeway overpass, Fields Landing. 0 Comment
  CDA2919  Polygonum sachalinense T. C. Fuller 1960-8-25 4973 Humboldt Northwestern; Outer North Coast Ranges region; West of Highway 101, 0.25 mile north of Humboldt Hill Road, Eureka. 0 Comment
  CAS-BOT-BC421005  Polygonum spergulariiforme Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC26897  Polygonum spergulariiforme Thomas W. Nelson 1973-7-27 1102 Humboldt SW of the Kneeland airstrip 915 Comment
  SEINET3404069 Image available Polygonum spergulariiforme Joseph P. Tracy 1908-6-27 2681 Humboldt NW slope of Buck Mountain, Little Van Duzen bridge Comment
  CHSC44  Polypodium californicum M. Anthony 1960-5-1 Humboldt Coastal. Comment
  POM118346  Polypodium californicum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC1126  Polypodium glycyrrhiza R. D. Zortman 1963-5-5 35 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  CAS-BOT-BC72083  Polypodium scouleri Ira L. Wiggins 1957-6-20 14133 Humboldt East side of highway, Trinidad Comment
  RSA689967  Polypodium scouleri Charlotte M. Hoak 1931-7-15 s.n. Humboldt Below Big Lagoon Comment
  UCD91028  Polypogon interruptus Joseph P. Tracy 1936-6-8 14871 Humboldt Trinidad. 9 Comment
  CAS-BOT-BC232594  Polypogon monspeliensis Harley P. Chandler 1901-6-1 1431 Humboldt Klamath River 335 Comment
  JEPS72929  Polypogon monspeliensis Lincoln Constance 1934-5-26 672 Humboldt sand and gravel bar of South Fork of Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  RSA693352  Polystichum dudleyi J. Hickman 1882-1 s.n. Humboldt Near Cape Mendocino. Comment
  SEINET11723017  Polystichum dudleyi E. A. York 1990-1-10 2670 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC73875  Polystichum imbricans M. Baker 1980-7-15 2952 Humboldt Near Whiting Ridge 1341 Comment
  HSC74743  Polystichum munitum Gail Newton 1981-8-6 2386 Humboldt Near Bug Creek 1125 Comment
  UC397299  Polystichum munitum Harley P. Chandler June, 1901 1316 Humboldt Hupa Indian Reservation; North Coast Ranges 152 Comment
  HSC79145  Polystichum munitum C. J. Thomas 1984-9-25 120 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
  UC249849  Polystichum munitum Joseph P. Tracy 1924-8-24 6828 Humboldt E Fork Willow Creek; Northern Coast Ranges 457 Comment
  HSC54558  Polystichum scopulinum Overton, Butler 1979-7-24 9567 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  SBBG21983  Populus balsamifera subsp. trichocarpa R. F. Thorne 1957-9-2 18990 Humboldt branch of Eel River at Burlington State Park, just S of Weott Comment
  UC275528  Populus trichocarpa Joseph P. Tracy 1923-5-6 6197 Humboldt Blue Lake; Northern Coast Ranges, Blue Lake 30 Comment
  UC672879  Potamogeton foliosus Joseph P. Tracy 1934-8-14 13567 Humboldt Eel River, Alton to Fortuna Eel River 15 Comment
  CAS-BOT-BC453908  Potamogeton pectinatus Henry M. Pollard 1946-8-13 s.n. Humboldt Near Harley place, Orleans region Comment
  RSA246822  Potamogeton pusillus Robert F. Thorne 1965-9-19 35463 Humboldt Freshwater Lagoon S of Orick 3 Comment
  SEINET8577021 Image available Potamogeton pusillus S. K. Harris 1938-1 808 Humboldt Eel River,near Fernbridge Comment
  RSA246825  Potamogeton richardsonii Robert F. Thorne 1965-9-19 35462 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  UC585622  Potentilla anserina subsp. pacifica Joseph P. Tracy 1934-7-30 13509 Humboldt along coast in front South End of Stone Lagoon (Dry Lagoon); , in front of South End Stone Lagoon 3 Comment
  HSC18731  Potentilla anserina subsp. pacifica W. A. Heaton 1965-5-17 3 Humboldt 1/2 mi. N of Trinidad on trail near beach Comment
  HSC18732  Potentilla anserina subsp. pacifica D. E. Anderson 1961-9-9 1782 Humboldt Along Hwy. 101 Comment
  UC30037  Potentilla gracilis var. gracilis Chesnut and Drew 1888-8-6 Humboldt Redwood Creek Comment
  HSC49151  Proboscidea louisianica Garry Markegard 1979-9-11 Humboldt Along Bald Hills Rd. ca. 400 ft. N of the Rd. between Williams Ridge and Cagle Ridge at old stage stop ca. 12 mi. from Jct. with State Route 101, Simpson property, Mr. Emmss caretaker, adjacent to vegetable garden. Comment
  HSC57029  Prosartes hookeri Overton, Butler 1979-7-24 9653 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  CAS-BOT-BC517505  Prosartes smithii L. R. Abrams 1927-9-1 12061 Humboldt Big Lagoon Comment
  CAS-BOT-BC517506  Prosartes smithii Carl B. Wolf 1937-9-10 9313 Humboldt 2 miles E of Trinidad on way to Hammond Lumber Co. Camp 20 152 Comment
  CAS-BOT-BC517512  Prosartes smithii Alice Eastwood 1907-4-22 29 Humboldt Part Trinidad Comment
  HSC26841  Prunella vulgaris Thomas W. Nelson 1971-1-8 321 Humboldt Ferndale next to Co. Fair Grounds Comment
  UCD125357  Prunella vulgaris Joseph P. Tracy 1942-10-18 17404 Humboldt Jacoby Creek, near the quarry. 152 Comment
  BLMAR261  Prunella vulgaris subsp. lanceolata Jennifer Anthony-Wheeler 1998-7-14 261 Humboldt King range, strawberry rock grazing allotment 280 Comment
  HSC22530  Prunella vulgaris subsp. lanceolata Jerry Parker 1968-9-23 68 Humboldt 1/4 mi. S of Vista Point Comment
  HSC96503  Prunella vulgaris subsp. vulgaris Gordon Leppig 1998-8-23 1073 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC102105  Prunus emarginata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1008 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC57014  Prunus emarginata Overton, Butler 1979-7-24 9614 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC97488  Prunus emarginata C. Witte 2007-5-18 41 Humboldt Intersection to Grouse Mountain Lookout. 1644 Comment
  POM160879  Prunus emarginata Joseph P. Tracy 1923-4-15 6195 Humboldt Hungry Hollow on Bald Mt. Comment
  CAS-BOT-BC154740  Prunus virginiana var. demissa Doris K. Kildale 1926-5-16 1841 Humboldt Horse Mountain 792 Comment
  JEPS20479  Pseudognaphalium ramosissimum Joseph P. Tracy 1936-8-24 15169 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CAS-BOT-BC80114  Pseudotsuga menziesii Doris K. Kildale 1927-5-7 3114 Humboldt Elk Ridge Comment
  UC484076  Pseudotsuga menziesii Carl B. Wolf 1930-10-29 1785 Humboldt Old Coast Road 7 mi s Honeydew P.O. 304 Comment
  UC502919  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1932-3-19 9789 Humboldt Blus Slide on Van Duzen River Northern Coast Ranges, Van Duzen River 91 Comment
  UC165838  Psilocarphus oregonus Joseph P. Tracy 1908-6 2798 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1223167  Psilocarphus tenellus Joseph P. Tracy 1950-5-30 18713 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA170261  Psilocarphus tenellus var. tenellus Joseph P. Tracy 1917-5-27 4783 Humboldt At Eureka. 0 Comment
  HSC74314  Pteridium aquilinum var. pubescens M. A. Baker 1980-7-20 3050 Humboldt Near Bell Swamps 1463 Comment
  CAS-BOT-BC460606  Pyrola aphylla Doris K. Kildale 1925-6-27 893 Humboldt Bear Buttes Comment
  UC1197568  Pyrola picta Joseph P. Tracy 1908-7-30 2777 Humboldt Northwest slope pf Buck Mountain 914 Comment
  HSC8106  Quercus chrysolepis D. E. Anderson 1961-9-30 1840 Humboldt Blue Lake 793 Comment
  UC1196531  Quercus chrysolepis Joseph P. Tracy 1921-8-21 5938 Humboldt near Willow Creek (at mouth of South Fork of Trinity); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC275588  Quercus chrysolepis Joseph P. Tracy 1924-8-31 6845 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 91 Comment
  UC1135607  Quercus garryana R. Stahelin 1933-8-20 Humboldt Liscomb Hill Eureka Quad. Comment
  HSC8258  Quercus kelloggii R. E. Thill 1965-5-15 30 Humboldt 3 mi W of Berry Summit on Hwy. 299 Comment
  HSC8259  Quercus kelloggii D. E. Anderson 1961-9-30 1835 Humboldt Comment
  UC1196358  Quercus kelloggii Joseph P. Tracy 1913-6-22 4270 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD165092  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 42.5 mi. from Garberville along Alderpoint Rd. 481 Comment
  HSC37839  Quercus vacciniifolia Thomas W. Nelson, Jane P. Nelson 1976-2-21 2245 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. W of Hoopa Comment
  UC212981  Quercus vacciniifolia Joseph P. Tracy 1919-9-23 5286 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC162862  Ranunculus occidentalis Joseph P. Tracy 1908-6-9 2671 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC71029  Ranunculus occidentalis Thomas W. Nelson 1977-4-20 3321 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  UC162861  Ranunculus occidentalis Joseph P. Tracy 1903-5-24 1908 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  HSC102107  Ranunculus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1010 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC18160  Ranunculus occidentalis var. occidentalis Harvey Doerksen 1962-5-22 30 Humboldt Camp Bauer, across Mad River from Korbel Comment
  UC249653  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1922-5-21 6050 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  UC1103014  Ranunculus parviflorus Joseph P. Tracy 1948-6-13 18033 Humboldt halfway between Bridgeville and Blocksburg (around a pool); Larrabee Creek 457 Comment
  UC1542885  Ranunculus parviflorus Harold E. Parks 1930-5-25 874 Humboldt Laribee Valley 762 Comment
  UC1196221  Ranunculus repens Joseph P. Tracy 1918-4-7 4868 Humboldt Little River Northern Coast Ranges (mouth) 30 Comment
  UCD18404  Ranunculus testiculatus Jack Major 1982-4-18 s.n. Humboldt 13 miles east of Winnemucca on I-80, north lane. Comment
  HSC56011  Ranunculus uncinatus Gilbert Muth 1979-7-31 11494 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC44407  Ranunculus uncinatus R. York 1978-5-6 159 Humboldt Along Bluff Creek Rd. 610 Comment
  HSC6887  Raphanus sativus S. J. Hawks 1965-4-3 12 Humboldt W of Eureka City Airport Comment
  JEPS41990  Rhamnus californica W. L. Jepson 1932-8-8 16480 Humboldt Canoe Creek Grasshopper Peak 1066 Comment
Read comments
Jan 17 2008
  UC592943  Rhamnus californica subsp. californica Carl B. Wolf 1931-8-31 Humboldt near Mouth of South Fork of Trinity River (on road to Sandy Bar Swimming Hole) 243 Comment
  POM126158  Rhamnus californica subsp. occidentalis Joseph P. Tracy 1921-10-2 5963 Humboldt Kneeland Prairie. Comment
  RSA134710  Rhamnus purshiana Peter H. Raven 1958-7-21 13655 Humboldt 7.2 miles NW of Capetown on road to Ferndale. Comment
  RSA698603  Rhamnus purshiana J. R. Bruff 1937-8-17 926 Humboldt Richardson Grove. Comment
  UC1197996  Rhamnus purshiana Mary Harriet Tracy 1946-5-30 Humboldt 5 mi e Carlotta; Van Duzen River, Riverside Park 30 Comment
  CAS-BOT-BC56611  Rhododendron macrophyllum Doris Kildale 1931-5-16 10694 Humboldt Camp 20, LBSJ Trinidad Comment
  CAS-BOT-BC56612  Rhododendron macrophyllum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  UC562739  Rhododendron macrophyllum Joseph P. Tracy 1936-8-24 15180 Humboldt 6 mi se of Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC162760  Rhododendron occidentale Joseph P. Tracy 1911-7-6 3340 Humboldt between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC183661  Rhododendron occidentale Joseph P. Tracy 1913-9-7 4389 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC314636  Rhododendron occidentale Joseph P. Tracy 1926-6-27 7663 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1463 Comment
  UCSB4803  Rhododendron occidentale Phillips, Priscilla 1958-6-7 Humboldt Highway 101, 14.1 mi. south of Prairie Creek Redwoods State Park (north of Trinidad) Comment
  UCSB18968  Rhododendron occidentale Jensen, Karen 1965-4-14 Humboldt Along U.S. Highway 101, 1 km. S of Trinidad 45 Comment
  RSA171949  Rhododendron occidentale var. paludosum R. F. Thorne 1957-9-3 19025 Humboldt Patrick's Point State Park. Comment
  HSC40677  Ribes binominatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2847 Humboldt Along Rd. to Goat Hill. 1646 Comment
  SEINET3121266 Image available Ribes divaricatum var. pubiflorum Joseph P. Tracy 1945-5-10 17507 Humboldt Rick's Prairie 46 Comment
  POM274396  Ribes laxiflorum H. E. Parks 1937-6-4 24004 Humboldt Along Prairie Creek at Valley Green Comment
  HSC41309  Ribes lobbii Brad Klipfel 1974-6-25 410 Humboldt Horse Mtn. Comment
  HSC74199  Ribes lobbii M. A. Baker 1980-7-22 3071 Humboldt Near Salmon Mtn. 1820 Comment
  JEPS49360  Ribes lobbii Jos. P. Tracy 1913-6-17 4189 Humboldt near summit Buck Mt. Comment
  UC902101  Ribes lobbii Joseph P. Tracy 1942-6-23 17234 Humboldt near Box Camp; Trinity Summit 1524 Comment
  RSA0021640  Ribes malvaceum E. K. Balls, P. C. Everett 1953-10-11 18627 Humboldt S. boundary Eel River Lodge, 4.3 mi. N of Richardson s Grove, Highway 101. 152 Comment
  HSC57895  Ribes marshallii Overton, Butler 1979-7-31 11472 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  CAS-BOT-BC206044  Ribes menziesii Doris K. Kildale 1928-2-19 4272 Humboldt Patrick's Point Comment
  HSC59571  Ribes menziesii Rick Lundquist 1979-4-22 28 Humboldt 8.4 mi. up Fickle Hill Rd. from 11th St. across from HSU observatory 610 Comment
  UC552231  Ribes menziesii Joseph P. Tracy 1933-5-20 12268 Humboldt near Petrolia; North Coast Ranges, Mattole Valley 15 Comment
  UC552232  Ribes menziesii Joseph P. Tracy 1934-8-11 13565 Humboldt 2 mi e Arcata (Fickle Hill); North Coast Ranges 304 Comment
  UCD102415  Ribes nevadense Hemphill, D. V. 1972-10-8 7033 Humboldt Near Bennett Peak and Hyampom. 1219 Comment
  UC902057  Ribes roezlii Joseph P. Tracy 1942-3-8 17066 Humboldt Miranda South Fork of Eel River 121 Comment
  BLMAR226  Ribes roezlii var. amictum Jennifer Anthony-Wheeler 1996-7-11 226 Humboldt N.Dobbyn creek 1005 Comment
  UC667061  Ribes roezlii var. cruentum Joseph P. Tracy 1934-3-11 13153 Humboldt French Camp Ridge 1066 Comment
  UC667062  Ribes roezlii var. cruentum Joseph P. Tracy 1933-7-11 12695 Humboldt Grouse Mountain 1524 Comment
  RSA0024587  Ribes roezlii var. cruentum Lyman Benson 1929-7-19 1872 Humboldt Ridge between Bull Creek and Matole [Mattole] River. Comment
  HSC31648  Ribes sanguineum Timothy B. Devine 1974-5-4 313 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC47611  Rigiopappus leptocladus J. P. Smith 1977-4-23 9028 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC47612  Rigiopappus leptocladus J. P. Smith 1977-4-23 9027 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC161485  Rorippa curvisiliqua J. P. Tracy 1906-7-1 2519 Humboldt vicinity Eureka; vicinity Eureka 0 Comment
  UC14385  Rorippa nasturtium-aquaticum Chestnut and Drew 1888-7-8 Humboldt Arcata Comment
  UC14401  Rorippa palustris Chestnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC99509  Rosa gymnocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 171 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
  RSA67383  Rosa gymnocarpa Philip A. Munz 1951-9-17 16995 Humboldt 1 mile S of Pepperwood Comment
  CAS-BOT-BC146839  Rosa nutkana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  CAS-BOT-BC146845  Rosa nutkana Doris Kildale Gillespie 1931-6-7 10644 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC98101  Rosa nutkana Cara Witte 2007-6-21 329 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  OBI5837  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1.8 mi from Rohnerville on the road to Fortuna 30 Comment
  UCD113888  Rosa nutkana H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad, Redwood Highway. Comment
  UC1199026  Rosa nutkana var. nutkana Joseph P. Tracy 1927-7-4 8230 Humboldt Sibley Ranch Iaqua 609 Comment
  UC527438  Rosa nutkana var. nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mi from Rohnerville (on road to Fortuna) 30 Comment
  UC667043  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-21 14994 Humboldt Iaqua 609 Comment
  UC902155  Rosa pisocarpa Joseph P. Tracy 1947-8-24 17890 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC667040  Rosa pisocarpa subsp. pisocarpa Joseph P. Tracy 1940-7-14 16691 Humboldt on river bank Garberville 152 Comment
  UCD113897  Rosa rubiginosa J. A. Delapp 1956-6-14 2 Humboldt California Forest and Range Experiment Station. 3 miles W of upper Mattole School. 152 Comment
  RSA89566  Rubus discolor Philip A. Munz 1954-7-23 19864 Humboldt 5 miles SE of Carlotta Comment
  UC162332  Rubus leucodermis Joseph P. Tracy 1911-6-4 3235 Humboldt 5 mi from coast (along Little River); Northern Coast Region, along Little River 121 Comment
  CAS-BOT-BC147243  Rubus parviflorus Doris K. Kildale 1926-5-14 3196 Humboldt Big Lagoon Comment
  HSC70811  Rubus parviflorus Gail Newton 1980-7-23 1748 Humboldt Near Packsaddle Ridge 1463 Comment
  UC162331  Rubus parviflorus Joseph P. Tracy 1911-7-7 3432 Humboldt between Willow Creek and Campbell Creek (viz. Ridge n of Willow Creek, near the summit); Northern Coast Ranges, Brannan Mountain, n Willow Creek 1219 Comment
  UCR275117  Rubus parviflorus Charity A. Hartshorn 2016-5-14 29 Humboldt Arcata Community Forest 244 Comment
  BLMAR240  Rubus pensilvanicus Jennifer Anthony-Wheeler 1997-6-13 240 Humboldt King range, growing at base of N bank of S fork bear creekbed 463 Comment
  CAS-BOT-BC156723  Rubus spectabilis Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  HSC22495  Rubus spectabilis D. Connell 1965-5-11 54 Humboldt Arcata, Jolly Giant Creek Comment
  HSC74629  Rubus ursinus M. A. Baker 1980-5-17 1236 Humboldt Near Le Perron Peak 1066 Comment
  HSC90634  Rubus ursinus Gail Newton 1982-6-1 3571 Humboldt Elk River Wildlife Area, Eureka. Comment
  JEPS47708  Rubus ursinus Lincoln Constance 1934-5-29 727 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  HSC76208  Rudbeckia klamathensis Overton, Butler 1979-8-2 12527 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  RSA167402  Rudbeckia occidentalis Joseph P. Tracy 1948-9-12 18204 Humboldt Box Camp; Trinity Summit. 1463 Comment
  HSC55036  Rumex acetosella Gilbert Muth 1979-7-31 11488 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC17564  Rumex acetosella S. R. Johnson 1965-4-16 45 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC17575  Rumex acetosella Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  SEINET4206289  Rumex acetosella J. Raycraft 1966-4-23 s.n. Humboldt Arcata Comment
  HSC62855  Rumex crassus J. M. DiTomaso 1979-5-20 1051 Humboldt Sand at Big Lagoon Park, 8 mi. N of Trinidad Comment
  UC1197458  Rupertia physodes Joseph P. Tracy 1929-7-4 8630 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  CAS-BOT-BC454159  Ruppia maritima Robert F. Thorne; P. Everett 1965-8-7 35208 Humboldt Samoa Peninsula: Elev. c. near sea level Comment
  HSC9565  Rytidosperma penicillatum True Hoyle 1967-7-5 27467 Humboldt Humboldt State University campus lawn, just below Founder's Hall, near the steps to the Science Bldg. 30 Comment
  HSC4064  Sagina maxima subsp. crassicaulis D. E. Anderson 1961-9-13 1813 Humboldt Trinidad Beach Comment
  OBI36622  Salicornia pacifica David J. Keil 1983-7-2 17297 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  CAS-BOT-BC103455  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt in McKay Meadow, Trinity Summit 1524 Comment
  RSA44504  Salix exigua H. M. Pollard 1947-8-21 s.n. Humboldt Klamath River [??] Boyle Creek. Orleans Region. Comment
  SBBG58913  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1336 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  UC512022  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1336 Humboldt 1 mi below bridge on Trinity Hwy. (on ...bank above Trinity R.) 152 Comment
  CAS-BOT-BC104094  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC106855  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01222 Humboldt 1 mile north of Samoa Comment
  CAS-BOT-BC107714  Salix hookeriana Doris K. Kildale 1926-3-20 1557 Humboldt Big Lagoon, along coast Comment
  CAS-BOT-BC107718  Salix hookeriana Doris K. Kildale 1927-5-14 3190 Humboldt Big Lagoon, coastal terrace. Comment
  CAS-BOT-BC107728  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC107741  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Sand dunes, near Samoa 6 Comment
  CAS-BOT-BC107761  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1221 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  HSC20071  Salix hookeriana J. P. Tracy, H. E. Parks 1931-3-26 904 Humboldt Lower Van Duzen River near Alton Comment
  HSC20072  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-12 1112 Humboldt Blue Slide, Van Duzen River Comment
  HSC96366  Salix hookeriana Gordon Leppig 1999-7-9 1178 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  JEPS14758  Salix hookeriana Joseph P. Tracy 1926-1-10 7345 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  POM219535  Salix hookeriana H. E. Parks 1931-5-12 954 Humboldt Samoa. Humboldt Bay. Near sea level. 0 Comment
  POM219537  Salix hookeriana H. E. Parks 1931-08 1057 Humboldt Bishop Pine Lodge. Trinidad. 150 Comment
  RSA239712  Salix hookeriana Larry E. DeBuhr 1973-4-23 995 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  RSA342503  Salix hookeriana Robert F. Thorne, Percy C. Everett 1965-8-9 35299 Humboldt Big Lagoon. 3 Comment
  RSA34284  Salix hookeriana Doris K. Kildale 1926-3-28 1691 Humboldt Redwood Creek at Berry's. Comment
  UC1196544  Salix hookeriana Joseph P. Tracy 1935-3-3 13715 Humboldt near mouth Mad R. 6 Comment
  UC1196549  Salix hookeriana Joseph P. Tracy 1943-11-28 17453 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  UC1222300  Salix hookeriana Joseph P. Tracy 1950-9-10 19366 Humboldt 1 mi inland from Cape Mendocino (1/2 mi s of town, foothills of Cape Ridge); , Cape Ridge 60 Comment
  UC303035  Salix hookeriana Joseph P. Tracy 1926-11-21 7832 Humboldt near mouth of Little R.; Northern Coast Ranges 6 Comment
  UC469118  Salix hookeriana Joseph P. Tracy 1931-9-20 9686 Humboldt Little River Northern Coast Ranges (mouth, edge of sand dunes) 6 Comment
  UC469125  Salix hookeriana Joseph P. Tracy 1931-8-23 9621 Humboldt sand dunes near Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC481263  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC490472  Salix hookeriana Joseph P. Tracy 1932-9-5 10771 Humboldt Mattole River near Petrolia; North Coast Region 15 Comment
  UC512003  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1231 Humboldt 1 1/2 mi e Alton (floodplain of Van Duzen R.) 30 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
  UC512091  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1216 Humboldt 1 mi n Samoa (in pine barrens near coast) Comment
  UC512092  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1216 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC512095  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1214 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC512106  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1207 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UCD111041  Salix hookeriana Linda M. Barker 1976-4-30 1422 Humboldt 3 miles west of Arcata. Comment
  CDA39525  Salix hookeriana Patty Adams Jun 1985 s.n. Humboldt Dry Lagoon State Park. 0 Comment
  POM218954  Salix laevigata H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers. S Fork of Eel River. Comment
  UC490516  Salix laevigata Joseph P. Tracy 1932-7-31 10290 Humboldt along Eel River at mouth of Larrabee Creek; North Coast Ranges, Eel River 30 Comment
  HSC19989  Salix lasiandra H. E. Parks, S. T. Parks 1932-4-5 1101 Humboldt Little River Lagoon Comment
  UC1196582  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1942-9-6 17309 Humboldt near McKay Camp; S. Fork Mt. 1676 Comment
  UC1196587  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1927-11-13 8394 Humboldt near mouth Little R.; Northern Coast Ranges, Little R. 6 Comment
  CAS-BOT-BC125217  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1122 Humboldt North bank of Mad River 1/4 mi. east of hwy. 101 6 Comment
  CAS-BOT-BC125227  Salix lasiandra var. lasiandra Harold E. Parks 1931-3-24 0911 Humboldt Fortuna, on banks of Eel River 10 Comment
  CAS-BOT-BC128197  Salix lasiandra var. lasiandra Doris K. Kildale 1927-7-23 3798 Humboldt Hoaglin Lake, near Lassicks Peaks Comment
  UC1196576  Salix lasiandra var. lasiandra Joseph P. Tracy 1941-3-26 16816 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity R. Valley 152 Comment
  HSC98523  Salix lasiolepis Cara Witte 2007-7-3 409 Humboldt White Oak Opening. 1242 Comment
  JEPS14784  Salix lasiolepis Joseph P. Tracy 1933-3-14 12184 Humboldt on Trinity Hwy. Berry's Mt.; North Coast Ranges, Berry's Mt. 762 Comment
  UC1196656  Salix lasiolepis Joseph P. Tracy 1920-8-15 5387 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC275494  Salix lasiolepis Joseph P. Tracy 1925-6-28 7154 Humboldt Redwood Creek, at Berry's Comment
  UC469414  Salix lasiolepis Joseph P. Tracy 1927-5-13 7995 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469429  Salix lasiolepis Joseph P. Tracy 1931-9-7 9643 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469430  Salix lasiolepis Joseph P. Tracy 1931-9-7 9645 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC490471  Salix lasiolepis Joseph P. Tracy 1932-9-5 10770 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC506344  Salix lasiolepis Joseph P. Tracy 1933-3-19 10932 Humboldt Blue Slide, on Van Duzen River 228 Comment
  UC506373  Salix lasiolepis Joseph P. Tracy 1933-4-9 10965 Humboldt Bridgeville 228 Comment
  UC511980  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC511983  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC511990  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1241 Humboldt Blue Slide Van Duzen River 91 Comment
  UC511993  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1239 Humboldt Blue Slide Van Duzen River 91 Comment
  UC512000  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1236 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC512018  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1340 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River 152 Comment
  UC512025  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1333 Humboldt near bridge on Trinity Highway (foot of bank); Trinity River 152 Comment
  CAS-BOT-BC107292  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01241 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107407  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3149 Humboldt Redwood Creek at Berry's 289 Comment
  SBBG57817  Salix lucida subsp. lasiandra H. E. and S. T. Parks 1932-5-12 1150 Humboldt near bridge at mouth of Maple Crk, Big Lagoon Comment
  HSC20064  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 967 Humboldt Humboldt/Trinity Cos., below Willow Creek 152 Comment
  JEPS14789  Salix melanopsis Joseph P. Tracy 1933-6-11 12551 Humboldt S. Fork Eel River near Miranda; Northern Coast Ranges 60 Comment
  POM220111  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 974 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM362860  Salix melanopsis H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy, 6km S of Alton. 20 Comment
  SBBG57922  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  SD978  Salix melanopsis Harold E. Parks 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC481194  Salix melanopsis Harold E. Parks 1931-8-25 1060 Humboldt on Van Duzen R Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC519369  Salix melanopsis Joseph P. Tracy 1933-7-22 12824 Humboldt S. Fork Eel R. at mouth of Bull Creek; Northern Coast Ranges, S. Fork Eel R. 45 Comment
  UC519378  Salix melanopsis Joseph P. Tracy 1933-5-20 12259 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  CAS-BOT-BC129139  Salix scouleriana Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC129166  Salix scouleriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1219 Humboldt Near the coast, 1 mile north of Samoa, approximately at sea level. Comment
  HSC96600  Salix scouleriana Gordon Leppig 2003-2-20 1810 Humboldt Eureka, W end of W Hawthorne St. 3 Comment
  HSC98583  Salix scouleriana Cara Witte 2008-7-25 938 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1324 Comment
  JEPS12911  Salix scouleriana Joseph P. Tracy 1927-3-27 7846 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS38418  Salix scouleriana W. L. Jepson 1932-7-27 16426 Humboldt Bull Creek 106 Comment
  UC1193085  Salix scouleriana G. W. Tourtillott 1950-8-30 29 Humboldt 1/4 mi. e. Belae Ranch; Quad. 29C4 457 Comment
  UC212995  Salix scouleriana Joseph P. Tracy 1919-9-23 5283 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC481241  Salix scouleriana Harold E. Parks 1931-12-1 1080 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 60 Comment
  UC481260  Salix scouleriana Harold E. Parks 1931-5-20 994 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  UC55955  Salix scouleriana J. P. Tracy 1900-8-5 922 Humboldt immediate vicinity Eureka 0 Comment
  HSC20104  Salix sitchensis J. P. Tracy 1933-7-16 12773 Humboldt S Fork Mtn., Mckay Camp 1677 Comment
  HSC37880  Salix sitchensis Thomas W. Nelson 1976-3-22 2282 Humboldt Cooper's Gulch near Franklin Elementary School Comment
  HSC99439  Salix sitchensis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 89 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC481376  Salix sitchensis Harold E. Parks 1931-3-25 903 a Humboldt Van Duzen R. Orick; , Orick 6 Comment
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Jul 9 2011
  UC492341  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC492342  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  JEPS12746  Sambucus mexicana W. L. Jepson 1932-7-24 16390 Humboldt Mail Ridge 914 Comment
  UC168949  Sambucus mexicana Joseph P. Tracy 1911-7-9 3465 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC58013  Sambucus racemosa var. racemosa G. L. Clifton 1979-7-31 11812 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC37578  Sanicula arctopoides J. D. Ackerman 1975-6-10 448 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  UC642281  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  HSC21635  Sanicula crassicaulis D. V. Sanford 1963-4-23 42 Humboldt Comment
  HSC39448  Sanicula crassicaulis Linda M. Barker 1976-8-2 1669 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  JEPS284  Sanicula crassicaulis Lincoln Constance 1934-5-24 642 Humboldt Bull Creek Region, South Fork Eel River South Fork Eel River; Bull Creek Region, South Fork Eel River 121 Comment
  UC642282  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7968 Humboldt Phillipsville, South Fork Eel River South Fork Eel River; Phillipsville, South Fork Eel River 121 Comment
  RSA167410  Sanicula crassicaulis Joseph P. Tracy 1950-7-6 19023 Humboldt Sproston s Place, 3 miles south of Burr Valley 1067 Comment
  RSA183595  Sanicula crassicaulis C. F. Zeillemaker 1964-4-7 64 -A-3 Humboldt Three miles southwest of Samoa on Samoa Peninsula at US Coast Guard Station. 3 Comment
  HSC44234  Sanicula tracyi B. Reinhardt 1975-7-17 801 Humboldt Six Rivers National Forest: Snow Camp area. Comment
  UC249600  Sanicula tuberosa Joseph P. Tracy 1922-5-29 6074 Humboldt Northern Coast Ranges, Head of South Yager Creek South Yager Creek; Northern Coast Ranges, South Yager Creek 762 Comment
  HSC98590  Sanicula tuberosa Cara Witte 2008-6-9 692 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1503 Comment
  JEPS79976  Saponaria officinalis Joseph P. Tracy 1929-7-21 8644 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC1239688  Satureja douglasii Joseph P. Tracy 1912-7-4 3733 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC153999  Satureja douglasii J. P. Tracy 1905-6-25 2201 Humboldt immediate vicinity Eureka 0 Comment
  HSC102082  Saxifraga ferruginea M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 984 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC902007  Saxifraga mertensiana Joseph P. Tracy 1941-4-11 16858 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 304 Comment
  POM117422  Scandix pecten-veneris Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UCD65995  Schedonorus arundinaceus Linda M. Barker 1976-6-1 1566 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC36316  Schoenoplectus americanus Rich Barcelona 1973-11-19 191173 .4 Humboldt Big Lagoon Comment
  RSA91475  Schoenoplectus maritimus F. W. Peirson 1923-7-11 4271 Humboldt Flats north of Eureka Comment
  CAS-BOT-BC111704  Schoenoplectus pungens var. badius Doris K. Kildale 1927-6-25 3550 Humboldt Shelter Cove, coastal Comment
  UC1103646  Scirpus congdonii Joseph P. Tracy 1937-8-12 15638 Humboldt Snow Camp 1402 Comment
  CDA18245  Scirpus microcarpus G. D. Barbe, T. C. Fuller 1974-6-19 1883 Humboldt North Coast Ranges; Arcata, US Hwy 101 at Saint Louis Rd. 12 Comment
  UCR122382  Scirpus microcarpus George K. Helmkamp, E. A. Helmkamp 2001-7-8 7001 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  CAS-BOT-BC110927  Scirpus microcarpus Kenneth Clark 1980-4-18 601 Humboldt Point Delgada quad. In marsh area of upper meadow above Dead Man's Gulch 213 Comment
  HSC15638  Scoliopus bigelovii O. E. Rogers 1962-3-17 29 Humboldt S of Kneeland 671 Comment
  HSC21131  Scrophularia californica A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction, 100 yards W of Lindsey Creek Comment
  HSC38928  Scrophularia californica Linda M. Barker 1976-5-13 1473 Humboldt 3 mi. W of Arcata. Comment
  CDA41913  Scrophularia californica T. C. Fuller 1958-6-17 595 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC79542  Scrophularia californica Kenneth Clark 1980-5-10 630 Humboldt Shelter Cove, lower alluvial terrace of Dead Man's Gulch 9 Comment
  UC1239697  Scutellaria antirrhinoides Joseph P. Tracy 1934-6-19 13238 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  POM126381  Scutellaria antirrhinoides P. E. Goddard 1907-6-16 b. 127 Humboldt Van Duzen Comment
  UC1239701  Scutellaria californica Joseph P. Tracy 1942-7-1 17363 Humboldt opposite Buck Mountain (along the Van Duzen River, Dinsmore's); Van Duzen River, Dinsmore's 762 Comment
  HSC79342  Sedum laxum subsp. flavidum D. K. Imper 1983-6-15 Humboldt Along Hwy. 299 S of Hwy, adjacent to swimming hole Comment
  CAS-BOT-BC63879  Sedum laxum subsp. heckneri Joseph P. Tracy 1935-7-30 14363 Humboldt Salmon summit. 1767 Comment
  UC967446  Sedum radiatum Reid Moran 1951-6-13 3485 Humboldt w slope Buck Mountain; w slope Buck Mountain 853 Comment
  RSA0074871  Sedum radiatum subsp. radiatum C. B. Wolf 1937-6-14 2858 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  UC2046852  Sedum spathulifolium R. E. Brainerd with N. Otting 2012-6-9 2042 Humboldt Humboldt County: Pine Ridge Road, headwaters of Lacks Creek drainage; ca. 17.5 air miles east-northeast of Arcata. Comment
  JEPS25690  Sedum spathulifolium P. C. Hutchison 1961-5-22 2020 Humboldt 5.4 mi ne of Klamath River bridge at Weitchpec (10 mi sw of Orleans, Hiway US299, w side of Klamath River on steep rocks above road); w side Klamath River, ne Weitchpec, sw Orleans Comment
  JEPS28948  Sedum spathulifolium P. C. Hutchison 1961-5-22 2029 Humboldt ca 5.4 mi n Orleans (e side Klamath River, high bluff along road); e side Klamath River, n of Orleans Comment
  JEPS48063  Sedum spathulifolium W. L. Jepson 1902-6-20 1908 Humboldt Hubbard's Station to Main Eel River; Hubbard's Station to Main Eel River Comment
  HSC48309  Sedum spathulifolium var. spathulifolium R. Sutherland 1978-4-22 1 .22478 Humboldt Along King's Crest Trail 1098 Comment
  HSC100143  Selaginella kraussiana G. F. Hrusa, R. Bencie, L. Bencie, C. Dogwin, and E. Dogwin 2010-12-29 18277 Humboldt Forest E of Humboldt State University, above Fern Lake 47 Comment
  UC1776736  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt in redwood forest behind Humboldt State Universiy, at base of stump near Fern Lake spillway Arcata 48 Comment
  CDA42470  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway. Comment
  HSC56348  Senecio integerrimus var. major Griswold, Butler 1979-7-10 6259 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  JEPS109412  Senecio integerrimus var. ochroleucus D. W. Taylor 2004-6-24 19144 Humboldt Spike Buck Mountain, north slope. Comment
  HSC36579  Senecio sylvaticus Thomas W. Nelson, James Nelson 1975-9-3 2197 Humboldt Above the junction of Maple Creek-Kneeland Rd. Comment
  HSC57636  Senecio triangularis G. L. Clifton, Griswold 10794 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1814 Comment
  CAS-BOT-BC85835  Sequoia sempervirens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 960 Humboldt unspecified Comment
  UC1196921  Sequoia sempervirens J. P. Tracy 1897-2-22 153 Humboldt immediate vicinity Eureka 0 Comment
  UC169027  Sherardia arvensis Joseph P. Tracy 1906-5-6 2446 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC12661  Sherardia arvensis J. F. Knezevich 1968-5-21 444 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  JEPS67223  Sidalcea malachroides W. L. Jepson 1902-6-24 1929 Humboldt above Korbel; above Korbel, Korbel to Angel's Ranch Comment
  JEPS79985  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1928-6-24 8458 Humboldt between Bridgeville and head Yager (South Yager Creek); Northern Coast Ranges, South Yager Creek 762 Comment
  UC902193  Sidalcea malviflora subsp. patula Joseph P. Tracy 1946-5-30 17546 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House); e of Carlotta 60 Comment
  SEINET6947342  Sidalcea malviflora subsp. patula W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  RSA20781  Sidalcea oregana subsp. spicata Carl B. Wolf 1937-8-13 9245 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit 1524 Comment
  HSC71746  Silene M. A. Baker 1980-6-26 2430 Humboldt Near Sims Creek 610 Comment
  HSC103269  Silene John McRae 2014-5-16 Humboldt Six Rivers National Forest, Hennessy Peak Quad, south of Grouse Creek on Rd. 6N20. 945 Comment
  SEINET10537655  Silene californica Mary Merello 1993-6-19 Merello 659 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  RSA47141  Silene californica Doris K. Kildale 1925-3-29 617 Humboldt Alton hill. Comment
  UC1541414  Silene californica H. E. and S. T. Parks June 1928 258 Humboldt Longvale 182 Comment
  HSC57999  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-7-31 11778 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1537311  Silene gallica Gordon H. True Jr. 1936-5-11 461 Humboldt 12 mi w Miranda (e slope Elk Ridge); w of Miranda, e slope Elk Ridge 457 Comment
  UC162886  Silene hookeri Harley P. Chandler June, 1901 1539 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC183561  Silene hookeri Joseph P. Tracy 1913-6-20 4234 Humboldt nw slope Buck Mountain (lower foothills); Northern Coast Ranges, lower foothills Buck Mountain 762 Comment
  UC275484  Silene scouleri subsp. grandis Joseph P. Tracy 1925-8-30 7254 Humboldt Freshwater Lagoon Northern Coast Ranges (Northern Coast Ranges) 60 Comment
  RSA21205  Silene scouleri var. scouleri C. B. Wolf 1937-8-10 9094 Humboldt Big Lagoon, so. side, w. side of Redwood Highway 6 Comment
  UC183562  Sisymbrium altissimum Joseph P. Tracy 1913-6-14 4117 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC1198794  Sisymbrium officinale Joseph P. Tracy 1904-7-24 2125 Humboldt immediate vicinity of Eureka 0 Comment
  SEINET6883434  Sisyrinchium bellum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles sou theast of Kneeland. Comment
  HSC23117  Sisyrinchium californicum Norman Dennis 1965-6-3 142 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  UC666975  Smilacina racemosa Joseph P. Tracy 1938-7-7 16038 Humboldt Grouse Mountain 1524 Comment
  HSC21309  Solanum americanum D. E. Anderson 1961-9-13 1824 Humboldt Comment
  JEPS12110  Solanum physalifolium var. nitidibaccatum Joseph P. Tracy 1940-9-28 16738 Humboldt Eureka 30 Comment
  CAS-BOT-BC154206  Solanum umbelliferum L. Abrams 1918-6-16 7132 Humboldt Willow Creek Comment
  CAS-BOT-BC231718  Solanum umbelliferum Joseph P. Tracy 1949-5-8 18293 Humboldt Carlotta. Open flat by old Strong's District School House, 5 miles east of town 60 Comment
  CAS-BOT-BC365436  Solidago elongata Doris K. Kildale 1926-7-11 2369 Humboldt Capetown - Ferndale road near Mountain Glen Comment
  UC494190  Solidago elongata H. E. and S. T. Parks 1930-9-14 785 Humboldt n shore Big Lagoon Comment
  CHSC69500  Solidago spathulata Vernon Oswald; Lowell Ahart 1997-9-4 8852 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. ON dunes. 6 Comment
  UC673080  Solidago velutina subsp. californica Joseph P. Tracy 1940-8-18 16701 Humboldt South Fork Eel River near Bolling Grove; South Fork Eel River 91 Comment
  SEINET200989  Sonchus asper J. P. Tracy 1903-8-2 1925 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC98505  Sorbus scopulina Cara Witte 2008-7-25 935 Humboldt At intersection with Forest Service Road 5N10C and Forest Service Road 5N10. 1346 Comment
  UC1103519  Sparganium emersum var. emersum Joseph P. Tracy 1934-10-21 13692 Humboldt in front of s end Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  UC750491  Sparganium emersum var. emersum Henry M. Pollard 1946-8-13 Humboldt near Harley Place (Orleans Region); Orleans Region Comment
  CAS-BOT-BC235369  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt Humboldt Bay, Arcata; foot of I Street Comment
  HSC94162  Spartina densiflora L. J. Heflin 1984-9-23 43 Humboldt Allen Marsh at Arcata Marsh and Wildlife Sanctuary Comment
  HSC83043  Spartina densiflora A. L. Eicher 1985-6-19 Humboldt Bordering Humboldt Bay, adjacent to the mouth of Mad River Slough, on SW side 1 Comment
  HSC83996  Spergula arvensis L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 221 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  HSC89444  Spergula arvensis P. A. Daly 1986-2-23 51 Humboldt Along trails at Trinidad Head 6 Comment
  HSC26466  Spergularia macrotheca T. O. Osborne 1970-4-8 23 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  RSA43849  Spiraea douglasii H. M. Pollard 1947-8-19 s.n. Humboldt Klamath River [N of] Redcap Creek. Orleans Region. Comment
  UCD114050  Spiraea douglasii Linda M. Barker 1976-6-14 1600 Humboldt 3 miles west of Arcata. Comment
  UCD114053  Spiraea douglasii Malcolm A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  SEINET11919281  Spiraea douglasii H. P. Chandler 1901-1 1197 Humboldt Humboldt Bay Comment
  HSC16657  Spiranthes romanzoffiana David Adams 1960-7-15 Humboldt Near Fort Humboldt monument, Eureka 15 Comment
  CHSC804  Stachys ajugoides var. rigida 1941-5-30 Humboldt Comment
  CHSC84693  Stachys ajugoides var. rigida L. P. Janeway 2003-7-26 7922 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  JEPS63064  Stachys ajugoides var. rigida W. L. Jepson 1934-5-7 16684 Humboldt Dyerville Comment
  UC1239731  Stachys ajugoides var. rigida Joseph P. Tracy 1949-7-7 18334 Humboldt Table Bluff 91 Comment
  CDA41010  Stachys ajugoides var. rigida T. C. Fuller 1958-6-17 593 -58 Humboldt Ferndale. 0 Comment
  CDA41013  Stachys ajugoides var. rigida T. C. Fuller 1962-8-6 9351 Humboldt Highway 299 to Blue Lake, 4.8 miles west of Willow Creek. 0 Comment
  UCLA71136  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15937 Humboldt vicinity Carlotta 30 Comment
  UCR275115  Stachys bullata Charity A. Hartshorn 2016-4-24 17 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  SDSU7904  Stachys chamissonis Harvey 1938-8-13 2269 Humboldt North of Arcata. Comment
  HSC14414  Stachys rigida Norman H. Moe 1962-5-19 Humboldt Lanphere's Place, SW corner of pasture Comment
  RSA20782  Stachys rigida subsp. rigida Carl B. Wolf 1937-8-13 9246 Humboldt North Coast Range 11 mi. E. of Hoopa Valley on New Road towards Trinity Summit. 1524 Comment
  SD93012  Stachys rigida var. quercetorum W. Bertsch 1953-7-30 233 Humboldt Highway 101, 5 miles north of Arcata. Comment
  SEINET12273953  Stachys rigida var. quercetorum J. P. Tracy 1950-1 18742 Humboldt at crossing of Bear River, near Petrolia, hills between town & Ocean 30 Comment
  HSC57914  Stenanthium occidentale Gilbert Muth 1979-7-31 11524 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC6231  Stephanomeria virgata Paul Shields 1955-9-25 Humboldt 17 mi. of Willow Creek Comment
  BLMAR677  Stipa lemmonii var. lemmonii Jennifer Wheeler 2013-7-10 677 Humboldt King range, HJ Ridge 609 Comment
  UC1198799  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1938-6-13 15909 Humboldt on exposed rock ledge near Cold Springs; North Coast Ranges, Grouse Mountain 1432 Comment
  UC1175131  Symphoricarpos albus var. laevigatus P. C. Everett and E. K. Balls 1959-10-25 23959 Humboldt 14 mi w Willow Creek (along U.S. Hwy 299 to Arcata) 502 Comment
  HSC48480  Symphoricarpos mollis Brad Klipfel 1974-9-7 569 Humboldt Horse Mtn. area, creek flowing into E Fork of Willow Creek. Comment
  HSC57089  Symphoricarpos mollis Overton, Butler 1979-7-24 9801 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC58804  Symphyotrichum bracteolatum G. L. Clifton, Griswold 1979-7-31 11705 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC49139  Symphyotrichum chilense J. O. Sawyer, R. J. Cole 1978-10-10 3319 Humboldt W of Coast Guard road at intersection with Samoa Bridge Comment
  UC29837  Symphyotrichum chilense C. C. Marshall 1886-1-1 Humboldt Comment
  RSA417726  Symphyotrichum foliaceum var. foliaceum E. S. Spalding 1924-7-11 s.n. Humboldt Between Trinidad and Arcata Comment
  UC1173673  Symphyotrichum spathulatum Joseph P. Tracy 1939-8-16 16402 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1402 Comment
  UCD120749  Symphytum uplandicum T. C. Fuller 1961-9-28 7047 Humboldt Iverson prop., Arcata Bottoms, 0.5 mi. s. of the Mad River, 0.75 mi. w. of Hwy 101, 2 mi. n. of Arcata. Comment
  UC1541367  Synthyris reniformis Harold E. Parks March 1934 4831 Humboldt Spruce Cove; Trinidad Comment
  JEPS9924  Synthyris reniformis Joseph P. Tracy 1922-4-30 6039 Humboldt along road between three creeks and mouth of Willow Creek; Northern Coast Ranges, Brannan Mountain 914 Comment
  UC582544  Synthyris reniformis Joseph P. Tracy 1927-5-30 8079 Humboldt vicinity of Garberville (along Redwood Creek); Redwood Creek 121 Comment
  HSC95076  Tanacetum bipinnatum Andrea Pickart 2002-7-2 144 Humboldt King Salmon Sand Spit 0 Comment
  HSC6251  Tanacetum bipinnatum Jerry Parker 1968-9-24 72 Humboldt Clam Beach, 1/4 mi. S of Strawberry Creek Comment
  UCSB15911  Tanacetum bipinnatum Breedlove, Dennis 1962-6-8 Humboldt Near coast on U.S. Highway 101, 3 miles south of Orick Comment
  UCSB6706  Tanacetum bipinnatum Phillips, Priscilla 1960-7-2 Humboldt Big Lagoon Park, north of Trinidad, Route 101 Comment
  SD148217  Tanacetum camphoratum G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7012 Humboldt Samoa Peninsula, 2.6 miles south of California 255 bridge across Humboldt Bay. 14 Comment
  SD39584  Tanacetum camphoratum Charlotte Hoak 1931-7-15 Humboldt Eureka Comment
  SBBG65851  Tanacetum vulgare L. Rowntree -Jul-1931 Humboldt near Ferndale Comment
  CHSC110732  Taraxacum erythrospermum Dean Wm. Taylor 2011-5-4 21112 Humboldt North Coast Ranges. Jepson Manual NCoR region. Alderpoinnt Road in the vicinity of the Snowline Fox Farm, vicinity of the road crossing of Knack Creek 341 Comment
  UC1197068  Tauschia kelloggii Joseph P. Tracy 1936-6-17 14943 Humboldt Bridgeville 198 Comment
  UC642291  Tauschia kelloggii Joseph P. Tracy 1936-6-10 14933 Humboldt mountain slopes w mouth South Fork of Trinity River; mountain slopes w of mouth South Fork of Trinity River 457 Comment
  CAS-BOT-BC85211  Taxus brevifolia Henry M. Pollard 1986-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC1592  Taxus brevifolia P. W. Shields Mar 1955 Humboldt 7 mi. SW of Myers Flat Comment
  UC667096  Tellima grandiflora Joseph P. Tracy 1935-7-23 14163 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC89548  Tellima grandiflora M. Roantree 1985-5-2 30 Humboldt E side of Trinidad Head. Comment
  RSA120721  Tellima grandiflora S. S. Tillett 1956-7-5 604 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  CHSC10101  Thermopsis macrophylla D. E. Anderson 1965-5-15 36926 Humboldt About 7 miles north of Hoops on Bloody Camp Prairie road. Comment
  HSC92244  Thermopsis macrophylla var. macrophylla Clare Golec 1995-7-6 Humboldt 701 Comment
  NY185794  Thlaspi californicum V. Rattan 06 1882 s.n. 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
  UC673196  Thlaspi montanum var. montanum Lincoln Constance and Reed C. Rollins 1942-5-12 2887 Humboldt Klamath River 7 mi ne Weitchpec (Klamath-Siskiyou Region); , Klamath River 121 Comment
  CAS-BOT-BC81316  Thuja plicata Doris K. Kildale 1926-11-13 2850 Humboldt Eureka 21 Comment
  HSC30092  Thuja plicata Chris Gist 1973-5-14 150 Humboldt HSC Campus S of Engineering Building Comment
  POM160766  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North fork of Mad River. 305 Comment
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Jul 25 2018
  UC212991  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North Fork Mad River North Coast Ranges, North Fork Mad River 304 Comment
  UC1225754  Thysanocarpus curvipes Joseph P. Tracy 1948-5-31 18005 Humboldt Harris 762 Comment
  UC161492  Thysanocarpus curvipes Joseph P. Tracy 1903-5-24 1915 Humboldt Alder Point Northern Coast Ranges, Eel River (on Eel River) 152 Comment
  HSC55614  Tiarella trifoliata var. unifoliata Overton, Butler 1979-7-23 9503 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC98749  Tiarella trifoliata var. unifoliata Cara Witte 2008-7-7 841 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  RSA246667  Tiarella trifoliata var. unifoliata R. F. Thorne, Percy C. Everett 1965-8-5 35140 Humboldt Mt. Chamisal; Below summit. 534 Comment
  UC902074  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1949-8-4 18423 Humboldt Mud Springs Trinity Summit (Trinity Summit); , Mud Springs 1341 Comment
  RSA32652  Tiarella trifoliata var. unifoliata Doris K. Kildale 1925-6-28 833 Humboldt Lawrence Crk. 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
  CAS-BOT-BC447610  Tolmiea menziesii Harley P. Chandler 1901-5-1 1268 Humboldt Redwood Belt 457 Comment
  HSC21159  Tonella tenella D. E. Anderson 1965-4-24 3546 Humboldt 2 mi. E of Berry Summit along Hwy. 299 Comment
  HSC26806  Tonella tenella Thomas W. Nelson 1971-4-24 400 Humboldt Overlooking the E Fork of Willow Creek, S of Hwy. 299 Comment
  UC32566  Tonella tenella W. C. Blasdale 1896-6-8 Humboldt Graham's Comment
  UC906646  Torilis arvensis Joseph P. Tracy 1946-6-15 17557 Humboldt Berry's Mt on Trinity Highway east of Redwood Creek 609 Comment
  UC642292  Torilis nodosa Joseph P. Tracy 1927-6-18 8183 Humboldt near Petrolia (Hills between Petrolia and Ocean) 152 Comment
  HSC3140  Toxicodendron diversilobum R. E. Thill 1965-5-1 26 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. Comment
  POM117573  Toxicodendron diversilobum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  NY274177  Tracyina rostrata J. P. Tracy 1916-6-20 4735 Humboldt Alder Point Comment
  SBBG5617  Trientalis latifolia H. and M. Dearing 1933-5-16 1292 Humboldt Weott Comment
  HSC17938  Trientalis latifolia Frances Oldridge 1946-1 Humboldt Freshwater Comment
  HSC28131  Trientalis latifolia J. D. Ackerman 1973-5-6 44 Humboldt 3 mi. N of Weott Comment
  HSC48609  Trientalis latifolia Mark Flippo 1978-4-8 3 Humboldt McKinleyville; Bella Vista Hill Comment
  BLMAR717  Trifolium albopurpureum Jennifer Wheeler 2011-5-20 717 Humboldt King range, near strawberry rock 7 Comment
  HSC71212  Trifolium arvense Thomas W. Nelson, Jane P. Nelson 1979-5-25 4697 Humboldt Willow Creek Comment
  UC302113  Trifolium bifidum var. bifidum Joseph P. Tracy 1926-5-2 7419 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1197179  Trifolium bifidum var. decipiens Joseph P. Tracy 1903-5-23 1900 Humboldt at Alder Point (Eel River); Northern Coast Ranges 91 Comment
  JEPS79998  Trifolium dubium Joseph P. Tracy 1925-5-17 6971 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  POM19412  Trifolium dubium L. R. Abrams 6099 Humboldt Arcata to Trinidad Comment
  UC1223466  Trifolium dubium Joseph P. Tracy 1935-5-25 13830 Humboldt Blocksburg Comment
  HSC71441  Trifolium fucatum J. P. Smith 1971-10-9 5044 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC99727  Trifolium longipes subsp. oreganum Glenn W. K. Shelton 2010-7-16 22 Humboldt Buck Flat on Titlow Hill Rd. 1512 Comment
  UC162843  Trifolium macraei J. P. Tracy 1900-6-5 843 Humboldt vicinity Eureka (Bucksport) 0 Comment
  JEPS65974  Trifolium microcephalum Lincoln Constance 1934-5-26 670 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region Comment
  UC495694  Trifolium microcephalum Joseph P. Tracy 1932-5-1 9869 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC495684  Trifolium obtusiflorum Joseph P. Tracy 1932-5-22 10119 Humboldt between Miranda and Redway (South Fork of Eel River); Northern Coast Ranges 91 Comment
  UC1197489  Trifolium oliganthum Joseph P. Tracy 1922-4-30 6002 Humboldt near Willow creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC16775  Trifolium variegatum var. variegatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 D Humboldt Hoopa Valley Comment
  JEPS37725  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Northern Coast Ranges, Little River Beach Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  UC631060  Trifolium wormskioldii Joseph P. Tracy 1911-6-25 3246 Humboldt Eureka Northern Coast Ranges 0 Comment
  RSA69588  Triglochin maritima F. W. Peirson 1923-7-11 6478 Humboldt Flats north of Eureka. Comment
  HSC101798  Trillium albidum Kjirsten A. Wayman 2011-6-5 279 Humboldt Near Cold Spring camp, 7.4 mi. south of Hwy 299 on Titlow Hill Rd., N 40.82998 deg. W 123.71219 deg. 1408 Comment
  CAS-BOT-BC133397  Trillium ovatum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC96778  Trillium ovatum M. Mesler 2006-6-6 611 Humboldt Big Hill Rd. 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  SEINET3991731  Trillium ovatum Unknown 1913-2-9 Humboldt Near Hydesville Comment
  UC1541274  Trillium ovatum Harold E. Parks 1933-1 Humboldt Trinidad, Spruce Cove Comment
  JEPS11782  Triodanis perfoliata Milo S. Baker 1923-6-20 42 Humboldt headwaters of Yager Creek Comment
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Jan 2 2016
  HSC26329  Triphysaria eriantha subsp. eriantha Thomas W. Nelson 1971-4-16 382 Humboldt N of Coast Guard Station on Samoa Peninsula Comment
  HSC13413  Trisetum canescens E. W. Styskel 1964-5-10 85 Humboldt 1.5 mi. SE of Redcrest along Hwy. 101. Comment
  UC1541569  Trisetum canescens Harold E. Parks Jun 1934 1987 Humboldt Spruce Cove; Trinidad Comment
  HSC13410  Trisetum canescens D. C. Juve 1964-5-16 45 Humboldt 1 mi. N of Tish-tang Ranger Station on Hwy. 96. Comment
  SEINET200948 Image available Trisetum cernuum Joseph P. Tracy 1920-5-30 5335 Humboldt Eureka. 61 Comment
  UC1197723  Triteleia bridgesii Joseph P. Tracy 1911-7-7 3413 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC15028  Triteleia bridgesii Mrs. M. H. Manning 1901-7-15 21 Humboldt near Hupa (trail below Mud Springs) Comment
  HSC98957  Triteleia hyacinthina Cara Witte 2008-7-28 952 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  RSA167432  Triteleia hyacinthina Joseph P. Tracy 1950-6-25 18896 Humboldt Buck Mountain, high meadow on west side, 3 miles south of Burr Valley 1159 Comment
  UC1197713  Triteleia hyacinthina Joseph P. Tracy 1925-5-30 7047 Humboldt McClellan Mountain Northern Coast Ranges, McClellan Mountain 822 Comment
  UC1197720  Triteleia laxa J. P. Tracy 1901-6-23 1188 Humboldt fields near Ryans Slough Hill; immediate vicinity of Eureka 0 Comment
  RSA1916  Tsuga heterophylla C. B. Wolf 1930-10-25 1763 Humboldt 12 miles above Blue Lake along Blue Lake to Willow Creek Road (Lord Ellis Road). 305 Comment
  SJSU136  Tsuga heterophylla Emily D. Smith 1934-8-23 Humboldt Big Lagoon midway between Trinidad & Orick Comment
  UCD108651  Ulex europaeus E. N. Gladish 1957-8-12 49 Humboldt Five miles southeast of Maple Creek. Comment
  HSC49505  Utricularia macrorhiza R. York 1979-4-13 225 Humboldt Behind grammar school in Fieldbrook. Comment
  RSA54143  Utricularia vulgaris subsp. macrorhiza H. M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  UC562349  Vaccinium cespitosum Joseph P. Tracy 1930-8-17 9161 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CAS-BOT-BC199307  Vaccinium ovatum Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  CHSC19510  Vaccinium ovatum P. F. Yull 1966-3-24 112 Humboldt South of Manila School. 120 yards from ocean. Comment
  HSC34628  Vaccinium ovatum Lon Hall 1975-3-29 304 Humboldt Near Shelter Cove 488 Comment
  POM285977  Vaccinium ovatum Lyman Benson 1927-7-11 56 Humboldt Weott Ranger Station. 107 Comment
  UCD166890  Vaccinium ovatum Colleen Rossier 2016-9-17 8 Humboldt Sunny Ridge Road, plot Sunny Ridge Red. 579 Comment
  CAS-BOT-BC199413  Vaccinium parvifolium Carl B. Wolf 1930-10-26 1768 Humboldt Along the Redwood Highway 3 mi. so. of Del Norte Co. line 152 Comment
  JEPS58705  Vaccinium parvifolium W. L. Jepson 1902-6-24 1926 Humboldt Korbel to Angel's Ranch Comment
  JEPS58710  Vaccinium parvifolium Joseph P. Tracy 1918-4-21 4879 Humboldt Near Newell's old cmap, Kneeland Prairie Road, around Humboldt Bay, Northern Coast Region, Humboldt Bay 457 Comment
  UC198661  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, Eel River 60 Comment
  HSC48405  Valeriana sitchensis subsp. sitchensis Brad Klipfel 1973-6-10 108 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC76046  Vancouveria hexandra Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  CAS-BOT-BC76051  Vancouveria hexandra Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta. Comment
  HSC91601  Vancouveria hexandra E. Mackey 1986-6-16 Humboldt Patrick's Point State Park Comment
  UC502924  Vancouveria hexandra Joseph P. Tracy 1932-7-15 10620 Humboldt near Corral Prairie (Trinity Summit); Klamath Mountains, , near Corral Prairie 1524 Comment
  UCR123962  Vancouveria hexandra George K. Helmkamp, E. A. Helmkamp 2001-7-8 6968 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  CAS-BOT-BC76052  Vancouveria hexandra W. R. Dudley 1899-6-1 s.n. Humboldt Unspecified. Comment
  CAS-BOT-BC76094  Vancouveria planipetala M. S. Jussel 1931-5-2 79 Humboldt 20 miles north of Garberville. Comment
  CAS-BOT-BC76096  Vancouveria planipetala Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  RSA438026  Vancouveria planipetala Miss Hutchinson s.n. Humboldt Unspecified. Comment
  BLMAR34  Vancouveria planipetala Jennifer Wheeler 34 Humboldt King range Comment
  UC1116238  Velezia rigida Joseph P. Tracy 1947-7-5 17774 Humboldt ridge top one mi w Mud Springs (Trinity Summit); , w of Mud Springs 1158 Comment
  CAS-BOT-BC135774  Veratrum insolitum Doris K. Kildale 1925-9-5 1272 Humboldt Between Orick and Martin's Ferry 716 Comment
  HSC98057  Veratrum insolitum Cara Witte 2007-7-19 544 Humboldt Along National Forest 1. Approximately 1 mile south of turnoff to Cold Spring. 1423 Comment
  HSC55630  Veronica americana Walter Overton, Marvin Butler 1979-7-24 9628 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  RSA20851  Veronica americana Carl B. Wolf 1937-6-18 8891 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  JEPS16493  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1935-5-25 13832 Humboldt Fort Seward 106 Comment
  UC27733  Veronica peregrina subsp. xalapensis C. C. Marshall 1888-1 Humboldt Eel River Region Comment
  HSC21216  Veronica persica Richard Steele 1962-3-18 9 Humboldt 0.25 mi. W of HSC campus 15 Comment
  HSC37846  Veronica persica Thomas W. Nelson, James Nelson 1976-3-11 2265 Humboldt Beside Eel River just N of terminus of Singley Rd. Comment
  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
  HSC38088  Vicia americana var. americana Thomas W. Nelson, James Nelson 1976-5-30 2609 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC73534  Vicia americana var. americana Gail Newton 1980-7-14 1496 Humboldt Near Last Chance Ridge. 1219 Comment
  RSA20805  Vicia americana var. americana Carl B. Wolf 1937-8-13 9270 Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  UC1222597  Vicia americana var. americana Joseph P. Tracy 1950-6-8 18733 Humboldt 7 mi s Ferndale (near Mountain Glen Ranch, Summit of Bear River Ridge); Bear River Ridge 609 Comment
  HSC32913  Vicia americana var. truncata Thomas W. Nelson, James Nelson 1973-5-28 962 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA91235  Vicia angustifolia F. W. Peirson 1926-7-13 7059 Humboldt Mad River, near Blue Lake Comment
  UC1222588  Vicia hirsuta Joseph P. Tracy 1950-6-17 18835 Humboldt Eureka Comment
  HSC15257  Vicia sativa subsp. nigra C. Kline 1970-10-28 49 Humboldt North Bank Rd., 3 mi. W of Blue Lake, Mad River gravel bottoms Comment
  HSC21756  Viola adunca D. E. Anderson 1961-10-1 1856 Humboldt E side of Freshwater Lagoon Comment
  UC1198443  Viola adunca Joseph P. Tracy 1927-4-24 7943 Humboldt Table Bluff; Northern Coast Ranges 91 Comment
  SEINET200800 Image available Viola bakeri J. P. Tracy 1932-7-15 10596 Humboldt Trinity Summit Klamath Mts. Open ground near melting snow. 1829 Comment
  RSA249427  Viola beckwithii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5593 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UCSB18722  Viola cuneata Jensen, Karen 1965-4-15 Humboldt 0.2 km. W of U.S. Highway 101, by Miranda turnoff 91 Comment
  HSC21787  Viola glabella W. Lanphere 1937-5-11 Humboldt Hoopa Comment
  JEPS50368  Viola glabella W. L. Jepson 1902-7-16 2057 Humboldt Trinity Summit 2133 Comment
  HSC21797  Viola glabella R. D. Modafferi 1965-3-19 56 Humboldt 2.1 mi. N of Trinidad on Trinity St. 305 Comment
  HSC96273  Viola glabella J. Breton, A. Livingston 2005-6-15 10 Humboldt NE of Grouse Mtn. 1490 Comment
  HSC21865  Viola hallii Paul Shields May 1955 Humboldt Kneeland Comment
  HSC44426  Viola hallii Brad Klipfel 1975-5-30 646 Humboldt Horse Mtn. Comment
  UC35283  Viola hallii Chesnut and Drew July 1888 Humboldt Kneeland Comment
  CHSC24744  Viola ocellata G. Strang 1976-4-10 6 Humboldt Ca. 1.5 mi e of Bridgeville on the ne facing bank. 1280 Comment
  CAS-BOT-BC270200  Viola palustris Doris K. Kildale 1926-3-20 1536 Humboldt Big Lagoon Comment
  SEINET200801 Image available Viola praemorsa J. P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek Comment
  UC66202  Viola purpurea subsp. purpurea Joseph Burtt Davy and Walter C. Blasdale 1899-5 5660 Humboldt North Coast Ranges; ; Summit of ridge, Hoopa Mt., from Bairs to Hoopa Comment
  HSC21857  Viola sempervirens D. E. Anderson 1962-2-10 1915 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  UC727172  Viola sempervirens A. A. Heller 1924-7-23 13877 Humboldt Trinidad Head Comment
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  HSC36516  Viola sempervirens A. M. Montalvo, J. D. Ackerman 1973-4-29 52 Humboldt 3 mi. NE of Kneeland on road to Maple Creek 457 Comment
  UC668242  Viola sempervirens Joseph P. Tracy 1938-4-5 15706 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 457 Comment
  UC668241  Viola sheltonii Joseph P. Tracy 1933-7-16 12769 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  HSC98736  Viola sheltonii Cara Witte 2008-6-2 670 Humboldt Along National Forest 1. 1 mile north of 5N18 (road to Spike Buck Mt.) 1583 Comment
  UC1103559  Viola sheltonii Joseph P. Tracy 1933-6-13 12586 Humboldt near summit of Hoopa Mountain (on road from Hoopa westward to Bair's) 1127 Comment
  UC1762495  Viola sheltonii Milo S. Baker 1946-6-14 11491 Humboldt South Fork Mtn. 1524 Comment
  CAS-BOT-BC199803  Vulpia L. R. Abrams 1926-7-11 6050 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  HSC9828  Vulpia bromoides N. R. Waite 1965-5-19 37 Humboldt W edge of Humboldt State University campus. Comment
  HSC9829  Vulpia bromoides R. D. Modafferi 1965-5-13 73 Humboldt 1.4 mi. N of Trinidad on Trinity St. 305 Comment
  UC589877  Vulpia bromoides H. S. Yates 1936-6-16 5663 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  UCD93467  Vulpia bromoides Harley P. Chandler 1901-5-1 1175 b Humboldt Humboldt County. 30 Comment
  CHSC19486  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith Jr. 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, ca 1-3 miles west of Hoopa. Comment
  HSC22841  Vulpia microstachys D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt 3 mi. W of Willow Creek along Three Creeks Rd. Comment
  UCD93706  Vulpia microstachys H. S. Yates 1936-6-17 5712 Humboldt near Burr Valley. 914 Comment
  UC1103716  Vulpia microstachys var. microstachys Joseph P. Tracy 1912-7-31 3917 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC180481  Vulpia microstachys var. pauciflora Joseph P. Tracy 1914-5-14 4463 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  HSC37935  Vulpia myuros Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC89911  Vulpia myuros Leonel Arguello 1989-8-20 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, alongside N Dune loop trail. Comment
  RSA10060  Vulpia myuros var. hirsuta Joseph P. Tracy 1925-5-17 6968 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  UC180482  Vulpia myuros var. myuros Joseph P. Tracy 1914-5-14 4432 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  HSC101659  Whipplea modesta J. P. Smith, J. O. Sawyer 2011-4-23 13119 Humboldt Along Salmon Creek Rd., 4.6 miles from its junction with U.S. 101. 290 Comment
  HSC73158  Whipplea modesta M. A. Baker 1980-5-18 1287 Humboldt Near Black Mtn. 1006 Comment
  CAS-BOT-BC382921  Wyethia angustifolia L. R. Abrams 1918-6-15 7125 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC32231  Wyethia angustifolia J. O. Sawyer 1970-6-24 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC98878  Wyethia angustifolia Cara Witte 2008-7-2 797 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  JEPS32069  Wyethia angustifolia Joseph P. Tracy 1936-6-17 14947 Humboldt nw slope Buck Mountain 762 Comment
  UC582644  Wyethia angustifolia Joseph P. Tracy 1927-7-24 8295 Humboldt Upper Mattole Valley; Upper Mattole Valley 152 Comment
  UCSB23112  Wyethia angustifolia Haller, John 1967-6-17 Humboldt Ferndale-Petrolia Road, 12 miles by road southwest of Ferndale, 3 miles northeast of Bear River Bridge at "Capetown" 152 Comment
  HSC71800  Wyethia longicaulis M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  RSA498212  Xerophyllum tenax W. Hutchinson 1927-05 s.n. Humboldt Humboldt County Comment
  UC1197336  Yabea microcarpa J. P. Tracy 1901-5-18 1100 Humboldt opposite Eureka (Sand Hills of Ocean Beach at Samoa); Samoa Comment
  UC20894  Yabea microcarpa Harley P. Chandler June, 1901 1315 Humboldt Hupa Indian Reservation; North Coast Ranges 152 Comment
  HSC8416  Zeltnera muehlenbergii Lincoln Constance 1934-6-4 820 Humboldt Look Prairie and Bull Creek Rd. to Dyerville, South Fork of Eel River Comment
  HSC35862  Zeltnera muehlenbergii Thomas W. Nelson, James Nelson 1975-8-5 2133 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  UC249566  Zigadenus micranthus var. micranthus Joseph P. Tracy 1921-5-30 5484 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC275515  Zigadenus micranthus var. micranthus Joseph P. Tracy 1924-7-4 6521 Humboldt Valley South Yager Creek; Northern Coast Ranges, Valley South Yager Creek 762 Comment



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