Search Results — 2000 specimen records retrieved (1403 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/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77963  Abies concolor Henry M. Pollard 1944-9-1 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC102605  Abies concolor M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1592 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  NY29281  Abies grandis J. P. Tracy 1932-3-20 9781 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
  HSC59462  Abronia latifolia M. A. Ericksen 1979-5-18 295 Humboldt Samoa Dunes, .5 mi. S of Simpson Timber Company plant entrance Comment
  UCD109784  Abronia latifolia Roman Gankin 1965-8-6 558 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  RSA0025090  Abronia latifolia Carl B. Wolf 1937-6-18 8905 Humboldt Centerville Beach 3 Comment
  RSA246857  Abronia umbellata subsp. breviflora Robert F. Thorne, P. Everett 1965-8-7 35216 a Humboldt Samoa Peninsula. 0 Comment
Read comments
Jan 13 2015
  CAS-BOT-BC330546  Acer circinatum Joseph P. Tracy 1909-6-13 2997 Humboldt Mad River near Blue Lake 30 Comment
  SEINET200861 Image available Acer glabrum Joseph P. Tracy 1933-7-11 12707 Humboldt North Coast Ranges, Grouse Mountain 1520 Comment
  HSC58344  Acer glabrum var. torreyi Overton, Butler 1979-8-2 12671 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1199019  Acer macrophyllum Joseph P. Tracy 1933-4-2 10955 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC31635  Achillea millefolium Glenn McGourty 1974-4-27 21 Humboldt Upper banks of the Mattole River Comment
  HSC57890  Achillea millefolium Overton, Butler 1979-7-31 11450 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC73585  Achillea millefolium Gail Newton 1980-7-14 1495 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC95116  Achillea millefolium Andrea Pickart 2002-7-3 153 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  JEPS37080  Achillea millefolium W. L. Jepson 1932-7-30 16460 Humboldt Bull Creek Comment
  UC1125415  Achillea millefolium H. L. Person 1931-7-30 19358 Humboldt Fieldbrook; Eureka Quad. Comment
  HSC46013  Achillea millefolium Catherine Chin 1978-8-16 106 Humboldt Arcata; at 7th and A St. Comment
  POM118513  Achlys californica Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC9738  Achlys californica Harley P. Chandler June, 1901 1293 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 182 Comment
  CAS-BOT-BC400001  Achlys californica E. Gundershaug; K. White; D. Johnson 1994-5-17 23 Humboldt 0.5 miles N of Hwy. 299 on old logging road, 17 miles E of Blue Lake 510 Comment
  CAS-BOT-BC400022  Achlys triphylla Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta Comment
  SEINET12094127  Achlys triphylla F. H. Utech 1988-1 88 -275 Humboldt 14 mi W of Bridgeville on CA 36, Van Duzen County Park along Van Duzen River 50 Comment
  JEPS52979  Achlys triphylla subsp. triphylla W. L. Jepson 1932-7-26 16421 Humboldt Bull Creek Comment
  UC1103144  Achnatherum lemmonii J. P. Tracy 1903-5-23 1905 Humboldt Alder Point Eel River 91 Comment
  RSA10032  Achnatherum nevadense Joseph P. Tracy 1932-7-12 10446 Humboldt Open ground at Corral Prairie, Trinity Summit, Klamath Mountains. 1524 Comment
  UCD51130  Achnatherum occidentale subsp. californicum Don Hagar 1957-8-6 s.n. Humboldt Red Cap Prairie, west of Trinity Summit. 1828 Comment
  UC1222925  Achyrachaena mollis Joseph P. Tracy 1948-6-13 18054 Humboldt nearby grassy slopes Harris Comment
  HSC40938  Acmispon micranthus Linda M. Barker 1976-6-1 1557 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  BLMAR170  Acmispon parviflorus Donald Hazlett 1994-6-7 170 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC56144  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-8-1 11973 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC55084  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-31 11748 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC73766  Aconogonon davisiae Gail Newton 1980-7-24 1772 Humboldt Near Somes Mtn. 1615 Comment
  UC1196187  Actaea rubra Joseph P. Tracy 1912-7-14 3754 Humboldt at Eureka (in woods towards Ryan's Slough); Northern Coast Region 0 Comment
  UC169341  Adenocaulon bicolor Joseph P. Tracy 1912-7-27 3880 Humboldt Kneeland Prairie 762 Comment
  HSC97952  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  CAS-BOT-BC62291  Adiantum aleuticum Carl B. Wolf 1927-8-28 1170 Humboldt On grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  UC203330  Adiantum aleuticum Joseph P. Tracy 1916-6-25 4742 Humboldt e Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  POM182348  Adiantum aleuticum Joseph P. Tracy 1907-8-20 2604 Humboldt Hydesville 30 Comment
  UC275411  Adiantum aleuticum Joseph P. Tracy 1925-11-25 7324 Humboldt near s fork Trinity River Valley; Northern Coast Ranges 182 Comment
  UCSB8229  Adiantum aleuticum Robbins, G. 1936-8-1 Humboldt Cliff above Van Duzen River, near Carlotta Comment
  UC249662  Adiantum jordanii Joseph P. Tracy 1922-4-30 6025 Humboldt near Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC54499  Agastache urticifolia G. L. Clifton, Griswold 1979-7-26 9358 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC76197  Agastache urticifolia Overton, Butler 1979-8-2 12510 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  CAS-BOT-BC30382  Ageratina occidentalis Carl B. Wolf 1927-8-27 1157 Humboldt On the Klamath River, 2 mi. below the Salmon River Comment
  RSA183633  Ageratina occidentalis D. E. Anderson 1965-9-5 4094 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  UC127705  Ageratina occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5884 Humboldt Francis Range North-Western California Comment
  UC165016  Ageratina occidentalis Joseph P. Tracy 1911-7-4 3300 Humboldt (tributary of Trinity River, Humboldt County) near its mouth Willow Creek 304 Comment
  SEINET202624 Image available Agoseris grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt Garberville north end of town. Comment
  UC1222885  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt at n end of town Garberville Comment
  UC164824  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1911-7-4 3258 Humboldt at w side of, on hill slopes, near Willow Creek Trinity River; Northern Coast Ranges, Willow Creek 243 Comment
  UC1222939  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-1 18954 Humboldt Friday Ridge Grouse Mountain, Friday Ridge 1219 Comment
  UC1239509  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 1/2 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  POM126128  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear Ridge Ridge 305 Comment
  CAS-BOT-BC13374  Agoseris retrorsa Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  JEPS71136  Agrostis alba W. L. Jepson 1936-8-17 17920 Humboldt near Still's Ranch (2 mi s of Field's Landing) Comment
  RSA129700  Agrostis capillaris H. S. Yates 5685 Humboldt Near Bayside 9 Comment
  CAS-BOT-BC127251  Agrostis exarata Harley P. Chandler 1901-6-1 1512 Humboldt North Coast Ranges. Klamath River. 426 Comment
  CAS-BOT-BC127290  Agrostis exarata C. L. Hitchcock; C. V. Muhlick 1963-7-14 22909 Humboldt Along Eel River at Fern bridge. Comment
  POM247142  Agrostis exarata H. E. Parks 1935-06 5607 Humboldt Spruce Cove, Trinidad. Comment
  RSA129586  Agrostis exarata H. S. Yates 1936-6-16 5664 Humboldt 1 mile S.W. of Samoa. Comment
  UC176586  Agrostis exarata J. P. Tracy 1900-9-2 933 Humboldt Immediate vicinity of Eureka 0 Comment
  UC556417  Agrostis exarata Palmer Stockwell 1934-7-13 64 Humboldt Clam Beach Comment
  BLMAR432  Agrostis gigantea Jennifer Wheeler 2005-7-20 432 Humboldt Lost Coast Headland, growing in grazing allotment 91 Comment
  HSC58753  Agrostis gigantea Overton, Butler 1979-7-24 9698 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  CAS-BOT-BC139497  Agrostis hallii Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC139503  Agrostis hallii A. G. Vestal 1937-6-14 s.n. Humboldt Along Redwood Highway 14 miles south of Garberville. Comment
  HSC90001  Agrostis hallii Leonel Arguello 1989-8-20 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, alongside N Dune loop trail. Comment
  UC552709  Agrostis idahoensis Joseph P. Tracy 1935-7-27 14303 Humboldt McKay Prairie Trinity Summit, McKay Prairie 1584 Comment
  UC1145152  Agrostis microphylla Joseph P. Tracy 1938-7-5 16006 Humboldt 5 mi e town (Carlotta, open flat by old Strong's District School House); Carlotta, old Strong's District School House 60 Comment
  UC180490  Agrostis microphylla Joseph P. Tracy 1914-5-14 4471 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UCD53145  Agrostis pallens R. Tofsrud 1948-1 s.n. Humboldt Clear Lake, road from Horse Mt. to Grouse Mt. 1371 Comment
  UC552778  Agrostis thurberiana Joseph P. Tracy 1934-7-18 13453 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC8858  Aira caryophyllea E. W. Styskel 1964-5-10 88 Humboldt 1.5 mi. SE of Redcrest along Hwy. 101 Comment
  CAS-BOT-BC138333  Aira caryophyllea var. caryophyllea Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  UC1198195  Allium amplectens Joseph P. Tracy 1927-5-14 8004 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC102062  Allium campanulatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 964 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC39431  Allium campanulatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2875 Humboldt E of Goat Hill lookout 1666 Comment
  RSA47172  Allium campanulatum Doris K. Kildale 1927-7-22 3815 Humboldt Lasseck s Peaks Comment
  HSC74089  Allium falcifolium Gail Newton 1980-6-28 679 Humboldt Near Mad River Butte 1536 Comment
  CDA18808  Allium triquetrum P. Haggard 2000-2-22 PDR 018177 Humboldt Glen St., Eureka. 0 Comment
  SEINET4208044  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U.S. Hwy. 101 ca 1.0 miles west of Orick.; 0 4 Comment
  HSC23259  Allium triquetrum Jena Kattenhorn 1971-5-26 259 Humboldt Vacant lots of HSC campus Comment
  HSC2987  Allium unifolium J. F. Knezevich 1968-5-14 438 Humboldt 11 mi. S of Ferndale on rd. to Cape Mendocino 305 Comment
  JEPS56396  Allium unifolium Joseph P. Tracy 1918-7-5 5004 Humboldt Mattole River Northern Coast Ranges, White Thorn Valley, Mattole River 304 Comment
  UCD138614  Allium unifolium K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC99641  Allium validum T. Jimerson, J. Pageau 1979-8-10 736 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  CAS-BOT-BC171313  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt Bald Mountain; In cold wet meadow near High Prairie 1066 Comment
  UC1193074  Alnus rhombifolia R. E. Nelson 1950-8-31 154 Humboldt 3 mi nw Neafus Peak; Quadrangle 29D1 609 Comment
  CAS-BOT-BC169535  Alnus rubra Doris K. Kildale 1928-7-29 5919 Humboldt Bear River at Capetown Comment
  HSC69582  Alnus rubra R. Kalal 1979-5-18 66 Humboldt Union St. between 11th and 12th St. 34 Comment
  SEINET187411  Alnus rubra H. E. Parks, ST Parks 1938-4-1 24126 Humboldt Spruce Cove Trinidad 61 Comment
  SEINET197713  Alnus rubra J. M. Tucker 1948-9-5 1865 Humboldt Along Hwy 101 3 mi S of Scotia Comment
  UC1135151  Alnus rubra H. S. Yates 1936-6-23 5865 Humboldt 1 mi s of Loleta; California Forest Experiment Station 30 Comment
  UC503086  Alnus rubra Joseph P. Tracy 1931-9-26 9698 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  CAS-BOT-BC169377  Alnus viridis subsp. sinuata Joseph P. Tracy 1930-7-16 9080 Humboldt Cool damp place along stream. S Fork Mountain, near McKay Camp 1676 Comment
  UC1103309  Alopecurus aequalis Joseph P. Tracy 1923-6-27 6381 Humboldt near the S. Fork Trinity R. Valley (shores of Lack Pond); Northern Coast Ranges, , Lack Pond 182 Comment
  UC1103316  Alopecurus aequalis Joseph P. Tracy 1924-8-31 6851 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges, Klamath R. 91 Comment
  CAS-BOT-BC138016  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt North Coast Ranges. Arcata Bottom. 15 Comment
  JEPS27131  Alopecurus saccatus Joseph P. Tracy 1912-7-21 3780 Humboldt Alton Northern Coast Region, Alton 30 Comment
  SEINET202019  Alopecurus saccatus J. P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  UC677555  Alopecurus saccatus A. A. Beetle with Stebbins and Tracy May 1942 3464 Humboldt 1 mi. e. Alton Comment
  UCD55973  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  CAS-BOT-BC13671  Ambrosia artemisiifolia H. M. Pollard 1947-8-27 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC13702  Ambrosia chamissonis Ira L. Wiggins 1940-7-10 9486 Humboldt Big Lagoon Comment
  CAS-BOT-BC13704  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15688 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  CHSC69496  Ambrosia chamissonis Vernon Oswald; Lowell Ahart 1997-9-4 8844 Humboldt Big Lagoon County Park at the southwest edge of Big Lagoon. North Coast Region, Coastal Strand. 3 Comment
  HSC96014  Amelanchier pallida Juha Pykala, D. H. Norris 1987-5-19 708 Humboldt Horse Mtn. Rd. at intersection of rd. to ski lift 1400 Comment
  CHSC68792  Ammophila arenaria Vernon Oswald 1997-6-5 8535 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.0 mi south of Hwy. 255. 6 Comment
  CAS-BOT-BC213953  Amsinckia H. E. Parks 1933-3-1 4282 Humboldt Trinidad Comment
  HSC17831  Anagallis arvensis D. B. Bader 1963-3-1 7 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC49034  Anagallis arvensis Patricia Shesgreen 1978-5-5 67 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  UC1191691  Anagallis arvensis Malcolm A. Nobs and S. Galen Smith 1949-8-11 1342 Humboldt e. shore Stone Lagoon Comment
  HSC89440  Anagallis arvensis P. A. Daly 1984-7-16 29 Humboldt Trinidad Head 61 Comment
  RSA247393  Anaphalis margaritacea Gary D. Wallace 1966-9-12 702 Humboldt Along Hwy. 299 E of Arcata near Willow Creek; Comment
  POM318602  Anaphalis margaritacea Patricia Wilder 1968-8-21 4381 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  POM118715  Anemone deltoidea Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  SBBG71821  Anemone deltoidea S. W. Hutchinson -Apr-1927 899 Humboldt Eureka 8 Comment
  UC13934  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
Read comments
Sep 17 2012
  UC8883  Anemone deltoidea J. Burtt Davy 1899-6-13 5499 Humboldt Camp Grant; North Coast Ranges Comment
  UC249649  Anemone oregana Joseph P. Tracy 1922-4-30 6038 Humboldt Three Creeks; North Coast Ranges 914 Comment
  UC1051574  Angelica genuflexa Joseph P. Tracy 1948-9-12 18206 Humboldt Trinity Summit, at Box Camp Trinity Summit; , Box Camp 1463 Comment
  UC1197384  Angelica genuflexa Joseph P. Tracy 1937-7-17 15442 Humboldt 2 mi s of Fields Landing (near Still Ranch); Northern Coast Region 6 Comment
  JEPS16074  Angelica genuflexa W. L. Jepson 1936-8-17 17910 Humboldt Fields Landing, Stills Ranch Fields Landing; , Stills Ranch Comment
  UC582657  Angelica hendersonii Joseph P. Tracy 1936-10-24 15205 Humboldt Table Bluff 91 Comment
  HSC21449  Angelica lucida Wm. F. Bowman 1968-11-9 Humboldt Along E edge of Humboldt Bay, along elevated area near railroad tracks. Comment
  HSC8638  Angelica lucida D. E. Anderson 1966-10-29 4347 Humboldt Along E side of Humboldt Bay, 1 mi. S of Arcata. Comment
  UC1197374  Angelica tomentosa Joseph P. Tracy 1939-8-16 16411 Humboldt Horse Mountain 1432 Comment
  UC642300  Angelica tomentosa Joseph P. Tracy 1939-8-16 16409 Humboldt Horse Mountain 1432 Comment
  HSC70683  Angelica tomentosa T. A. Ranker Jul 1980 131 Humboldt Along Hwy 36, 36.7 mi E of junction with Hwy 101 Comment
  HSC76418  Anisocarpus madioides Denis Kearns 1981-7-8 161 Humboldt Near Bluff Creek 622 Comment
  CAS-BOT-BC271490  Anisocarpus madioides Doris K. Kildale 1927-4-30 1912 Humboldt Fruitland Hill, Ham's Road Comment
  HSC4648  Antennaria suffrutescens D. E. Anderson 1963-9-21 2845 Humboldt Grouse Mtn. Rd Comment
  UC1222875  Antennaria suffrutescens Joseph P. Tracy 1946-5-4 17528 Humboldt along Trinity Highway; Willow Creek Canyon Comment
  JEPS13332  Anthemis arvensis Joseph P. Tracy 1937-10-3 15691 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  RSA254784  Anthemis cotula Thomas W. Nelson 1973-8-19 1111 Humboldt McKeown Ranch north of Dinsmore Comment
  UCR48595  Anthemis cotula R. D. Goeden, Don W. Ricker 1987-9-2 870902- 13 Humboldt Loleta, along Cannibal Road 8 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
  SEINET198594  Anthoxanthum odoratum H. E. Parks, ST Parks 1952-4-30 24444 Humboldt Spruce Cove Trinidad Comment
  UC1100219  Anthoxanthum odoratum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1193 Humboldt at southern outskirts of Eureka Eureka Comment
  UC526831  Anthoxanthum odoratum Joseph P. Tracy 1925-7-5 7164 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, 1066 Comment
Read comments
Jul 18 2012
  UCD56232  Anthoxanthum odoratum Linda M. Barker 1976-4-30 1402 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CDA41213  Antirrhinum vexillo-calyculatum subsp. breweri E. C. Whitney 1960-9-1 s.n. Humboldt State Highway 96 near Bluff Creek. 0 Comment
  UC582470  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1933-8-30 13004 Humboldt Horse Mountain; Northern Coast Ranges 1066 Comment
  UC1198744  Aphanes occidentalis Joseph P. Tracy 1940-4-7 16529 Humboldt near Samoa; Humboldt Bay 6 Comment
  CAS-BOT-BC392160  Aquilegia formosa David D. Keck 1948-7-1 5974 Humboldt South side of Big Lagoon Comment
  RSA20852  Aquilegia formosa var. truncata Carl B. Wolf 1937-6-18 8892 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  HSC57322  Arabis glabra Walter Overton, Butler 1979-7-23 9542 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC99487  Arabis glabra var. glabra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 146 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
  HSC44361  Aralia californica Brad Klipfel 1974-8-2 511 Humboldt Horse Mtn., draw above Horse Mtn. creek Comment
  CAS-BOT-BC128651  Arbutus menziesii Doris K. Kildale; L. B. Kildale 1930-4-13 9574 Humboldt Bridgeville 289 Comment
  RSA32651  Arbutus menziesii Doris K. Kildale 1927-5-7 3109 Humboldt Elk Ridge near Blacksburg. Comment
  UC180189  Arctium minus Joseph P. Tracy 1914-10-4 4631 Humboldt Table Bluff Northern Coast, Humboldt Bay 0 Comment
  UC1225904  Arctostaphylos X candidissima Joseph P. Tracy 1947-7-9 17839 Humboldt Horse Mountain 1432 Comment
  UC1225932  Arctostaphylos X media Joseph P. Tracy 1945-3-30 17501 Humboldt Eureka 45 Comment
  RSA47097  Arctostaphylos cinerea Doris K. Kildale 1926-4-4 1721 Humboldt Hulbdt County: Northern end of county at Del Norte line, Bluff between Redwood high & ocean Comment
  CAS-BOT-BC23753  Arctostaphylos columbiana Doris K. Kildale 1927-1-30 2899 Humboldt Big Lagoon, coastal terrace Comment
  HSC33075  Arctostaphylos columbiana Thomas W. Nelson, J. D. Ackerman 1974-5-14 1264 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  JEPS19870 Image available Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6141 Humboldt Big Lagoon Northern Coast Region; Big Lagoon, Humboldt Co. 6 Comment
  RSA622692  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27674 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
  UC535005  Arctostaphylos columbiana H. E. Parks December 1931 4950 Humboldt Hobson's Trinidad 60 Comment
  UC582665  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15439 Humboldt Eureka 45 Comment
  UCD50769  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1178 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  RSA12517  Arctostaphylos columbiana var. columbiana C. B. Wolf 1934-7-3 5919 Humboldt 21 mi. from Orick on Weitchpec Rd. Comment
  RSA134600  Arctostaphylos columbiana var. columbiana P. C. Everett, E. K. Balls, George B. Everett 1959-10-25 23965 Humboldt 8.8 mi. NE from Blue Lake, U.S. Hwy, 299, Arcata to Willow Creek. 274 Comment
  RSA47098  Arctostaphylos columbiana var. columbiana Doris K. Kildale 1926-2-7 1504 Humboldt Arcata Road near Bayside. Comment
  RSA252144  Arctostaphylos columbiana var. tracyi Gary D. Wallace 1974-12-22 1345 Humboldt Near coast N of Trinidad at the edge of the W part of Big Lagoon. 61 Comment
  HSC54509  Arctostaphylos glandulosa Overton, Butler 1979-7-23 9415 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UCD51037  Arctostaphylos glandulosa Joseph M. DiTomaso 1976-3-28 348 Humboldt West side of Lord Ellis summit on State Highway 299 between Arcata and Willow Creek. 762 Comment
  UC1120179  Arctostaphylos glandulosa subsp. glandulosa A. E. Wieslander 1931-5-19 200 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  UC1193022  Arctostaphylos glandulosa subsp. glandulosa R. H. Neuns 1950-10-9 135 Humboldt 3 mi w Thorne; Quad 28D4 670 Comment
  RSA632808  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27773 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  CAS-BOT-BC38832  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-5-7 3110 Humboldt Elk Ridge, near Eel Rock Comment
  POM367342  Arctostaphylos manzanita subsp. manzanita Thomas W. Nelson, Jane Nelson, A. Nelson 1976-2-21 2253 Humboldt Tish-Tang Campground. Comment
  UC1198677  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1923-3-17 6155 Humboldt Garberville Northern Coast Ranges 121 Comment
  HSC102094  Arctostaphylos nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 997 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1602024  Arctostaphylos nevadensis J. W. Congdon 1904-7-23 Humboldt <illegible> Eureka Comment
  CAS-BOT-BC40063  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1936-8-2 15075 Humboldt French Camp Ridge 1066 Comment
  UCD52856  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1179 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road (from Orick); French Camp Ridge. Comment
  HSC40550  Arctostaphylos patula Thomas W. Nelson, Jane P. Nelson 1976-5-23 2524 Humboldt SW facing slopes 1666 Comment
  SEINET3106998  Arctostaphylos uva-ursi Steve Selva, Roger Jensen 1974-8-28 91 Humboldt Approx 5 mi S of Arcata on the sand dunes of the Samoa Peninsula. Comment
  UCD52028  Arctostaphylos uva-ursi Roman Gankin 1965-8-6 554 Humboldt Sand dunes west of road. 1.3 miles south of Samoa, Samoa Peninsula, Humboldt County, California. Comment
  RSA286310  Arctostaphylos uva-ursi var. coactilis R. F. Thorne 1974-7-29 45082 Humboldt Samoa Dunes. Comment
  SEINET11987137  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3993 Humboldt Tilden Botanic Garden, Berkeley, orig. from Table Bluffs near Eureka Comment
  HSC69625  Armeria maritima subsp. californica R. Kalal 1979-5-29 34 Humboldt Along Samoa Blvd. 3 Comment
  RSA246710  Armeria maritima subsp. californica Robert F. Thorne, Percy C. Everett 1965-8-5 35158 Humboldt Samoa Dunes. 3 Comment
  UC1198608  Armeria maritima subsp. californica Joseph P. Tracy 1905-4-30 2179 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  HSC48024  Arnica cernua Brad Klipfel 1974-6-25 423 Humboldt Horse Mtn. Comment
  HSC96202  Arnica cernua April A. Allard, Gregory O'Connell 2005-6-24 14 Humboldt 4.5 miles south of Hwy. 299 on NF1 at junction at base of radio tower 1421 Comment
  UC176419  Arnica cordifolia Joseph P. Tracy 1913-6-17 4177 Humboldt at summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  CAS-BOT-BC82431  Arnica discoidea Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC82647  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1524 Comment
  UCD56014  Arrhenatherum elatius Freed W. Hoffman 1946-5-19 1726 Humboldt North Coast Ranges. Mattole River. Comment
  SEINET10473422  Artemisia Mary Susan Taylor 1990-8-22 Taylor 6078 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC97439  Artemisia douglasiana Ivy Watson 2008-9-17 22 Humboldt Mad River Park on West End Rd. beside pumping station 12 Comment
  SEINET201064  Artemisia heterophylla Joseph P. Tracy 1910-9-25 Humboldt Region about Humboldt Bay. 0 Comment
  CHSC266  Artemisia pycnocephala M. Anthony 1960-5-1 Humboldt Coastal. Comment
  JEPS17992  Artemisia pycnocephala George B. Rossbach 1955-6-10 513 Humboldt near lagoon and lighthouse Humboldt Bay (between Fairhaven and end of sandy point off Eureka) Comment
  CAS-BOT-BC97244  Artemisia suksdorfii A. A. Heller 1924-7-25 13844 Humboldt near the beach at Agate Beach near Trinidad Comment
  UC204825  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt 3 mi s point of cape; Northern Coast Ranges, Cape Mendecino 3 Comment
  UC154231  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC400537  Asarum caudatum Alice Eastwood 1907-4-21 4 Humboldt Trinidad Comment
  HSC3268  Asarum caudatum D. A. Shally 1965-5-15 50 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  POM118567  Asarum caudatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1103509  Asarum caudatum Joseph P. Tracy 1932-7-16 10643 Humboldt Trinity Summit; woods at edge of McKay Prairie 1584 Comment
  UC1197610  Asclepias cordifolia Joseph P. Tracy 1935-7-31 14392 Humboldt ridge connecting Trinity Summit with Salmon Summit; Devil's Backbone 1676 Comment
  RSA401103  Asclepias speciosa H. M. Pollard 1947-8-27 s.n. Humboldt Orleans Hotel grounds (Orleans region) Comment
  UC23011  Asclepias speciosa J. Burtt Davy 1899-6-24 5866 Humboldt Hoopa Valley, along the river North Coast Ranges Comment
  HSC55067  Aspidotis densa G. L. Clifton, Griswold 1979-7-31 11647 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  RSA21097  Aspidotis densa C. B. Wolf 1937-6-14 8825 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  SEINET196546  Aster chilensis Ynez Whilton Winblad 1941-6-24 Humboldt Between Garberville and Pepperwood. Comment
  JEPS109802  Astragalus agnicidus Dean W. Taylor 2004-6-22 19115 Humboldt head of Scott Creek, flanks of Mt Baldy, Larabee Creek watershed 731 Comment
  UC201383  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1918-7-1 4977 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, in sandy flats near the shore, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  JEPS109394  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  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
  HSC103946  Astragalus umbraticus T. Salzberg 1996-7-26 186 Humboldt Six Rivers National Forest; Forest Service Rd. 11N16, which is a tributary of Slate Creek Road. 1293 Comment
  HSC34744  Asyneuma prenanthoides Thomas W. Nelson 1974-7-19 1671 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC76274  Asyneuma prenanthoides Denis Kearns 1981-7-23 370 Humboldt Near Whiteys Peak 732 Comment
  CAS-BOT-BC69520  Athyrium filix-femina subsp. cyclosorum L. R. Abrams 1916-7-11 6053 Humboldt At mouth of Grizzly Creek on Van Duzon River. Comment
  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
  JEPS341  Athyrium filix-femina var. cyclosorum Wm. K. D. Reynolds August, 1933 1 Humboldt Briceland Comment
  UCSB30585  Athyrium filix-femina var. cyclosorum Edwards, David 1974-9-2 Humboldt Ca. 10 ft. E. of dirt road, ca. 100 yds. from its jct. with Fickle hill Rd., Arcata 3 Comment
  HSC72972  Athysanus pusillus Gail Newton 1980-6-24 601 Humboldt Near Ladder Rock 1570 Comment
  UC1198298  Athysanus pusillus Joseph P. Tracy 1927-3-27 7848 Humboldt Trinity River Valley near the South Fork; North Coast Ranges, Trinity River Valley 182 Comment
  UC1222660  Athysanus pusillus Joseph P. Tracy 1950-4-20 18627 Humboldt 4 mi se of Low Gap (above Kuntz, Van Duzen River); Van Duzen River 792 Comment
  HSC9004  Avena barbata R. Spellenberg 1965-6-14 1124 Humboldt Along Barry Rd., 1 mi. from junction with Bridgeville Rd., Kneeland Prairie Comment
  HSC5123  Baccharis douglasii W. L. Jepson 1932-7-24 16391 Humboldt Tooey Ranch, Garberville Comment
  HSC5125  Baccharis douglasii Jerry Parker 1968-10-31 225 Humboldt South of Vista Point Comment
  HSC5114  Baccharis pilularis subsp. consanguinea D. E. Anderson 1961-8-25 1756 Humboldt 1.5 miles S of Trinidad. overlooking beach Comment
  HSC5120  Baccharis pilularis subsp. consanguinea Jerry Parker 1968-9-19 61 Humboldt Clam Beach Comment
  HSC90230  Baccharis pilularis subsp. consanguinea L. Watson, J. Meninga Aug 1990 3 Humboldt Near Manilla. Mad River Slough and Dunes, 50 ft. from parking lot, E of trail Comment
  HSC91924  Bellis perennis E. Mackey 1987-1-17 Humboldt Patricks Point State Park, near Wedding Rock. Comment
  POM41982  Bellis perennis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC5187  Bellis perennis J. R. Kahl 1962-3-10 3 Humboldt 2 mi. S of Trinidad along old Hwy.101 Comment
  CAS-BOT-BC48160  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3416 Humboldt Bald Mountain ridge - Under forest at edge of Snow Camp Meadow, near base of Snow Camp Mt., at head of high long ridge 1432 Comment
  RSA167308  Bensoniella oregona Joseph P. Tracy 1951-6-14 19416 Humboldt East side of Snow Camp Meadows Comment
  HSC35711  Berberis aquifolium Thomas W. Nelson 1975-10-12 2238 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC57034  Berberis nervosa Overton, Butler 1979-7-24 9666 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1198383  Berberis nervosa J. P. Tracy 1903-8-9 1941 Humboldt vicinity of Eureka 0 Comment
  CAS-BOT-BC75811  Berberis pinnata Carl B. Wolf 1941-3-2 9989 Humboldt North Coast Ranges. Bull Creek-Petrolia Road. 0.25 mile south of Panther Gap. 548 Comment
  SD112347  Blechnum spicant Darley F. Howe 1961-8-1 3109 Humboldt Three mi. N of Arcata on Hwy. 101. Comment
  HSC986  Blechnum spicant R. A. Eagle 1964-5-15 41 Humboldt H. S. C. campus, trail to Jolly Giant parking lot Comment
  JEPS35166  Blechnum spicant Milo S. Baker 1923-7-19 83 Humboldt canyon near Wilder's; Mattole River region, sw Humboldt Co. Comment
  HSC99638  Boschniakia strobilacea Gail Newton 1980-7-22 1656 Humboldt Near Devils Backbone 1554 Comment
  UC1196126  Boschniakia strobilacea Joseph P. Tracy 1939-4-29 16251 Humboldt Klamath River near Slate Creek. Comment
  HSC56002  Boykinia major Overton, Butler 1979-7-31 11453 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC99464  Boykinia major K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 118 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC420421  Boykinia occidentalis Mrs. M. H. Manning 1901-7-31 323 Humboldt Eureka Trail Comment
  HSC37929  Brassica nigra Peter Sorensen 1976-6-14 Humboldt North Spit Comment
  CAS-BOT-BC106290  Brickellia californica Doris K. Kildale 1926-8-29 2593 Humboldt Van Duzen River, near Strong's Station Comment
  UC527563  Brickellia californica C. B. Wolf 1931-8-31 Humboldt 1 mi above its mouth South Fork of Trinity River ((Sandy Bar Swimming Hole), South Fork of Trinity River) 243 Comment
  CAS-BOT-BC127682  Brickellia greenei Joseph P. Tracy 1939-8-16 16401 Humboldt Horse Mountain, in open forest of Jeffrey Pine, in serpentine belt 1432 Comment
  HSC104048  Briza maxima E. R. Fyer 2015-4-26 20 Humboldt At turnout off Samoa Blvd. 1 Comment
  HSC59213  Briza maxima Terry Roth 1979-5-29 90 Humboldt Off Alliance Rd. near Westwood Ct. at bottom of hillside Comment
  SEINET3132624  Briza maxima D. E. Anderson 1965-5-8 3626 Humboldt T6N, R2E, sec 29, about 1 mi E Blue Lake on Hwy 299 Comment
  HSC12346  Briza minor Steve Dorei 1970-10-31 137 Humboldt Scotia Bluffs, N of railroad tracks Comment
  HSC9101  Briza minor Paul Shields Aug 1955 Humboldt 2 mi. S of Weott Comment
  SEINET3884856  Brodiaea elegans Jan G. Cooper 1976-8-2 6 Humboldt Along road to Horse Mountain Ski Area turnoff of Hwy 299.; 0 Comment
  UCSB16626  Brodiaea elegans subsp. elegans Breedlove, Dennis 1961-7-4 Humboldt 10.9 miles west of Willow Greek on US299 822 Comment
  JEPS7624  Brodiaea stellaris Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3406 Humboldt along state Hwy 36 5 mi e Bridgeville Comment
  SEINET199104  Brodiaea stellaris Rimo Bacigalupi, L. Constance; Moran Carlquist. 1951-6-13 3406 Humboldt Along State Highway 36 5 miles east of Bridgeville Comment
  HSC3017  Brodiaea terrestris subsp. terrestris D. E. Anderson 1963-5-25 2493 Humboldt 4 mi. W of Petrolia Comment
  HSC90775  Brodiaea terrestris subsp. terrestris Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UC15039  Brodiaea terrestris subsp. terrestris J. P. Tracy 1901-6-23 1159 Humboldt immediate vicinity Eureka 0 Comment
  UC1197743  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1904-7-4 2114 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  SEINET7297864 Image available Bromus breviaristatus Joseph P. Tracy 1950-1 18786 Humboldt Mail Ridge; North of Harris 2 miles 1036 Comment
  RSA167289  Bromus carinatus Joseph P. Tracy 1951-6-26 19570 Humboldt Twin Lakes vicinity, Snow Camp and Twin Lakes trip. Comment
  UC1103278  Bromus carinatus var. carinatus Joseph P. Tracy 1942-6-2 17098 Humboldt 2 mi n of Bridgeville 609 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
  UC526848  Bromus carinatus var. carinatus H. E. Parks and Joseph P. Tracy 1934-7-6 11142 Humboldt Northern Coast Ranges, Iaqua Iaqua; Northern Coast Ranges, Iaqua 762 Comment
  UC526866  Bromus carinatus var. carinatus Joseph P. Tracy 1925-7-5 7162 Humboldt High Prairie on Bald Mountain High Prairie; Northern Coast Ranges, Bald Mountain, High Prairie 1066 Comment
  UC34027  Bromus catharticus Henry Melde 1902-2-8 Humboldt Eureka Comment
  UC1103348  Bromus diandrus Joseph P. Tracy 1942-5-23 17087 Humboldt at Eureka Eureka 30 Comment
  HSC37852  Bromus hordeaceus Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UC525675  Bromus madritensis subsp. rubens Joseph P. Tracy 1933-6-25 12623 Humboldt 2 to 5 mi e of South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  UCD59657  Bromus secalinus var. velutinus G. T. Bateham 1921-8-7 s.n. Humboldt Showers Pass. Comment
  CAS-BOT-BC185522  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  HSC74753  Bromus vulgaris Gail Newton 1981-8-6 2396 Humboldt Near Bug Creek 1125 Comment
  UC84157  Cacaliopsis nardosmia J. W. Blankinship 1893-6-15 Humboldt Jager Comment
  SD38262  Cakile edentula var. edentula Edith A. Purer 1932-7-27 4140 Humboldt Samoa Comment
  CHSC10120  Cakile maritima J. W. Johnson 1962-4-29 1299 Humboldt Arcata. W.M. Lanphere Farm, Samoa Peninsula. Comment
  CHSC68489  Cakile maritima Vernon H. Oswald 1997-4-10 8332 Humboldt Big Lagoon County Park at the southwest edge of Big Lagoon. North of the launch ramp. 3 Comment
  UCD114940  Cakile maritima Linda M. Barker 1976-4-30 1418 Humboldt 3 miles west of Arcata. Comment
  UC1145052  Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 A Humboldt near Panther Gap (on road between Mattole and Bull Creek) 822 Comment
  UC1565648  Calamagrostis foliosa Ken S. Berg 1986-9-13 Humboldt Shelter Cover Telegraph Creek (mouth of creek) Comment
Read comments
Mar 31 2007
  UC552719  Calamagrostis koelerioides Joseph P. Tracy 1935-7-24 14192 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  HSC78988  Calandrinia ciliata L. P. Janeway 1984-4-11 727 Humboldt N Spit of Humboldt Bay, NW of the boat ramp and N of the Coast Guard Station 5 Comment
  UC1922745  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, P. Everett 1965-8-9 35323 Humboldt CLAM BEACH COUNTY PARK: along highway. Comment
  UCD149967  Callitriche palustris William Anderson; H. Mc. 1964-8-4 s.n. Humboldt McKinleyville, Shore Ares. Comment
  HSC13057  Callitropsis nootkatensis C. Kline, D. Santana Oct 1970 8 Humboldt HSC Campus Comment
  CAS-BOT-BC80389  Calocedrus decurrens Doris K. Kildale 1926-8-15 2540 Humboldt Hoopa Mountain 579 Comment
  HSC58124  Calocedrus decurrens G. L. Clifton, Griswold 1979-8-1 12108 Humboldt Near Horse Trail Ridge 1878 Comment
  HSC58137  Calocedrus decurrens Gilbert Muth 1979-8-1 12145 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC98720  Calocedrus decurrens Cara Witte 2008-7-11 886 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  RSA47116  Calocedrus decurrens Doris K. Kildale 1926-8-15 2540 Humboldt Hoopa Mt. 579 Comment
  HSC15332  Calochortus tolmiei W. K. Parks Jul 1933 1194 Humboldt S Fork Mtn. Comment
  HSC15406  Calochortus tolmiei J. P. Tracy, H. E. Parks 1934-6-27 7 Humboldt Grouse Mtn. 1372 Comment
  UC1537208  Calochortus tolmiei Gordon H. True Jr. 1936-5-11 456 Humboldt 12 mi w Miranda; Elk Ridge 457 Comment
  UC1196205  Caltha biflora Joseph P. Tracy 1932-7-16 10638 Humboldt At Corral Prairie, Trinity Summit; Klamath Mountains. 1524 Comment
  UC1971693  Calycadenia fremontii 1978-8-21 2158 Humboldt 2.1 mi W of Hwy 299 on Friday Ridge Road, ca. 3.5 mi WSW of Salyer, common at Burnt Woods, yellow form at Big Bar (W along cliffs), (=GDC 785) 458 Comment
  HSC12225  Calypso bulbosa G. L. Stebbins 1970-4-5 60 Humboldt Along county road to Snow Camp, 2.7mi W of Maple Creek road junction Comment
  HSC65477  Calypso bulbosa M. A. Baker 1980-6-7 1800 Humboldt Near Brush Mtn. 1128 Comment
  UC1196471  Calypso bulbosa J. P. Tracy 1901-4-26 1041 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  HSC97493  Calypso bulbosa Cara Witte 2007-5-21 59 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 and National Forest 1. 1410 Comment
  RSA725961  Calypso bulbosa var. occidentalis Richard G. Swinney 1968-4-5 241 Humboldt North Coast: Lanpheres Preserve, west of Arcata. 3 Comment
  HSC102120  Calyptridium monospermum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1024 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC141691  Calystegia occidentalis subsp. occidentalis T. S. Brandegee Humboldt Dutch Flat Comment
  SEINET200995  Calystegia polymorpha Joseph P. Tracy 1937-7-24 15531 Humboldt Trinity Summit head of Little Hors-Linto Creek. 1372 Comment
  HSC40941  Calystegia soldanella Linda M. Barker 1976-6-1 1559 Humboldt 3 mi. W of Arcata Comment
  RSA394824  Calystegia soldanella B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  UCD126159  Calystegia soldanella Linda M. Barker 1976-6-1 1559 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC153969  Camassia quamash J. P. Tracy 1910-5-15 3135 Humboldt immediate vicinity of Eureka 0 Comment
  HSC16442  Camissonia cheiranthifolia J. W. Johnson 1961-8-17 1044 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC22497  Camissonia cheiranthifolia W. B. Thompson 1967-7-18 2 Humboldt Comment
  POM72743  Camissonia cheiranthifolia subsp. cheiranthifolia P. A. Munz 1925-6-20 9891 Humboldt Clam Beach, 14 miles north of Eureka Comment
  HSC78087  Camissonia strigulosa L. P. Janeway, Amy Eisenberg 1984-4-24 745 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven Rds. and E of the Willow patch 3 Comment
  CAS-BOT-BC160240  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. Harris; S. K. Harris; Clarence Crane, Jr. 1939-8-23 s.n. Humboldt On beach-sand at Samoa Comment
  SEINET10462871  Campanula prenanthoides Chandler 1901-6-14 CHANDLER 1476 Humboldt KLAMATH RIVER, ORLEANS TO SOMES BAR 1000 Comment
  SEINET10462889  Campanula prenanthoides LeRoy R. Abrams 1918-6-16 Abrams 7184 Humboldt WILLOW CREEK, LOWER EDGE OF TRANSITION ZONE Comment
  SEINET10462990  Campanula prenanthoides Tracy 1934-8-24 TRACY 13591 Humboldt Trinity Highway, on ridge east of North Fork of Mad River 610 Comment
  SEINET10463039  Campanula prenanthoides Tracy 1909-8-1 TRACY 3061 Humboldt KNEELAND PRAIRIE, WOODS, GRAVELLY SOIL 762 Comment
  UC1021825  Campanula prenanthoides J. M. Tucker 1948-9-3 1859 Humboldt road bank on Friday Ridge Road just below Black Rock ((junction of Friday Ridge Road and the Horse Mountain-Grouse Mountain Road)) Comment
  HSC99576  Campanula scouleri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 241 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  SEINET10463566  Campanula scouleri Clifton 1979-7-31 CLIFTON 11815 Humboldt NR TISH TANG A TANG CR., SALMON MT QUAD. NR HOOPA EVERGREEN CONIFER FOREST IN SEEPAGE AREA 1356 Comment
  SEINET10463746  Campanula scouleri Newton 1981-7-23 Newton 2280 Humboldt Pilot Creek quadrangle; near Bug Creek Butte, streamside. 1350 Comment
  SEINET10463749  Campanula scouleri Tracy 1908-6-27 TRACY 2858 Humboldt Valley of Van Duzen River, opposite Buck Mountain, in woods. 762 Comment
  SEINET10463758  Campanula scouleri Howard S. Irwin 1975-8-16 Irwin s.n. Humboldt Grogan's Hole area Comment
  HSC6629  Capsella bursa-pastoris S. J. Roberts 1965-4-8 11 Humboldt 0.5 mi. S of junction of Alliance Rd. and Hwy. 101 Comment
  CAS-BOT-BC37430  Cardamine californica Parks; Tracy 1931-3-26 0916 Humboldt Lower Van Duzen River. 60 Comment
  UC1199190  Cardamine californica Joseph P. Tracy 1913-3-30 4031 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC162640  Cardamine californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5610 Humboldt Bald Mountain North-Western California, Bald Mountain Comment
  HSC98634  Cardamine californica var. californica Cara Witte 2008-7-16 918 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  SEINET6914416  Cardamine californica var. integrifolia J. P. Tracy 1911-4-2 3171 Humboldt Immediate vicinity of Eureka, altitude 0-500 feet. Comment
  UC1173730  Cardamine californica var. sinuata Joseph P. Tracy 1939-4-25 16221 Humboldt mouth Bull Creek; Mouth of Bull Creek 60 Comment
  CAS-BOT-BC37217  Cardamine hirsuta M. S. Jussel 1931-5-2 s.n. Humboldt 8 miles north of Garberville. Comment
  UC673286  Cardamine oligosperma Lincoln Constance and Reed C. Rollins 1942-5-11 2871 Humboldt three mi e East Fork Willow Creek; North Coast Ranges, e of East Fork Willow Creek Comment
  UCR45400  Cardamine oligosperma Barry Silver 1986-4-23 539 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  CAS-BOT-BC384762  Cardionema ramosissimum L. R. Abrams 1916-7-18 6124 Humboldt Arcata to Trinidad Comment
  CHSC68780  Cardionema ramosissimum Vernon Oswald 1997-6-5 8537 Humboldt Somoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. Along the road to the jetty. 6 Comment
  POM232317  Cardionema ramosissimum I. L. Wiggins 1930-7-11 4687 -a Humboldt Near Samoa Comment
  RSA167247  Carduus tenuiflorus Joseph P. Tracy 1942-6-28 17266 Humboldt Angel's Ranch' toward Hungry Hollow; Bald Mt. Comment
  HSC100466  Carex Carl C. Marshall May 1886 207 Humboldt Tilley's Place. Comment
  JEPS75414  Carex W. L. Jepson 1932-7-26 16411 Humboldt s bank, Bull Creek Bull Creek 106 Comment
  UC562286  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 13504 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 6 Comment
  HSC95392  Carex arcta Gordon Leppig 2002-7-12 1785 Humboldt PalCo land, .5 mi. W of Fox Creek Rd., W side of large swamp 70 Comment
  HSC75766  Carex concinnoides Denis Kearns 1981-6-24 6 Humboldt Near Cedar Camp 1219 Comment
  CAS-BOT-BC34973  Carex densa Joseph Prince Tracy 1936-6-3 14847 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  SEINET10823148  Carex echinata Pykala 1987-6-11 PYKALA 1611 Humboldt North Trinity Mountain Wilderness, W of Crogan Hole, Abies concolor-forest, open springy mountainmeadow by a little stream, surrounded by Alnus-thickets. 1554 Comment
  POM224512  Carex exsiccata H. C. Cantelow 1936-5-18 s.n. Humboldt 8 miles NE of Orick. Comment
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Jan 20 2011
  POM160289  Carex globosa Joseph P. Tracy 1925-6-7 7064 Humboldt East Fork of Willow Creek, Willow Creek Canyon. 457 Comment
  UC1103075  Carex globosa Joseph P. Tracy 1933-6-7 12521 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC562640  Carex gracilior Joseph P. Tracy 1935-6-8 13940 Humboldt at Eureka Northern Coast Ranges 0 Comment
  CAS-BOT-BC146605  Carex gynodynama Alice Eastwood; John Thomas Howell 1937-6-23 4841 Humboldt 8 miles from Kneeland on road to Yager Comment
  SEINET7561251 Image available Carex harfordii Andrew L. Hipp 1999-5-31 438 Humboldt Phillipsville, Edge of 101 (Redwood Hwy), big E-turn just S of the Miranda exit. 152 Comment
  UC303143  Carex harfordii H. E. Parks and Joseph P. Tracy 1925-6-13 7095 Humboldt Eureka Northern Coast Ranges, Eureka 30 Comment
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Sep 15 2010
  CAS-BOT-BC21752  Carex hassei Joseph Prince Tracy 1927-6-17 8170 Humboldt Big Lagoon. 6 Comment
  UC1103593  Carex hendersonii Joseph P. Tracy 1937-6-20 15348 Humboldt 10 mi upstream mouth of Bear River; Bear River 152 Comment
  HSC69687  Carex hendersonii Thomas W. Nelson, J. O. Sawyer 1978-6-9 4101 Humboldt Grizzly Creek State Park Comment
  UC1152061  Carex hendersonii Joseph P. Tracy 1948-6-13 18042 Humboldt halfway between Bridgeville and Blocksburg; Larrabee Creek Comment
  HSC102162  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1072 Humboldt Patterson Meadows 1555 Comment
  UC1103093  Carex integra Joseph P. Tracy 1932-7-14 10547 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA167279  Carex lenticularis var. lipocarpa Joseph P. Tracy 1950-8-7 19266 Humboldt Meadow at Box Camp, Trinity Summit. 1524 Comment
  CAS-BOT-BC31463  Carex leptopoda Joseph Prince Tracy 1943-7-18 17442 Humboldt Big Lagoon 9 Comment
  HSC76778  Carex leptopoda L. P. Janeway 1983-5-15 296 Humboldt Bend of Mad River on S side, near the Fish Hatchery Rd. and across from Blue Lake 24 Comment
  CAS-BOT-BC31583  Carex luzulina var. luzulina Joseph Prince Tracy 1942-6-28 17269 Humboldt In bog at Murphy Meadows, Bald Mountain. 975 Comment
  JEPS101126  Carex mendocinensis Dean W. Taylor 1991-8-15 12296 Humboldt ridge 1 mile West of Horse Mountain 1493 Comment
  HSC63874  Carex microptera M. A. Baker 1979-6-27 921 Humboldt Edge of Hoopa Indian Reservation Comment
  CAS-BOT-BC119538  Carex nudata Harley Pierce Chandler 1901-5-1 1235 Humboldt Unspecified. 91 Comment
  RSA246861  Carex obnupta Robert F. Thorne, Percy C. Everett 1965-8-5 35139 Humboldt Mt. Chamisal; Below summit. 534 Comment
  UC562323  Carex obnupta Joseph P. Tracy 1934-7-30 13503 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  CHSC107145  Carex pachycarpa R. E. Brainerd 2009-7-23 1570 Humboldt Coast Range, South Fork Mountain; headwaters of Kerlin Creek; 19.6 air miles west-northwest of Hayfork; Forest Service Road 3N32. UTM zone 10 453507E 4494866N. 1716 Comment
  CAS-BOT-BC119223  Carex pachystachya Joseph Prince Tracy 1928-6-24 8465 Humboldt Valley of South Yager Creek. 762 Comment
  HSC48037  Carex pachystachya D. H. Norris 1972-6-26 22971 Humboldt Along Grouse Mtn. Rd. about 3 mi. from intersection with Horse Mtn. Rd. Comment
  HSC48038  Carex pachystachya D. H. Norris 1972-6-26 23008 Humboldt Along Grouse Mtn. Rd. about 3 mi. from intersection with Horse Mtn. Rd. Comment
  HSC76793  Carex pachystachya L. P. Janeway 1982-6-20 17 Humboldt Along Titlow Hill Rd., 3 mi. from Hwy. 299 1220 Comment
  HSC98595  Carex pachystachya Cara Witte 2008-8-6 1017 Humboldt Intersection of Forest Service Road 4E27 and National Forest 1. South of trail to Board Camp Butte. 1479 Comment
  CAS-BOT-BC118009  Carex rossii Joseph Prince Tracy 1935-6-23 13977 Humboldt French Camp Ridge. 1066 Comment
  JEPS79859  Carex rossii Joseph P. Tracy 1935-6-2 13921 Humboldt Big Lagoon 3 Comment
  HSC71729  Carex serratodens M. A. Baker 1980-6-26 2452 Humboldt Near Sims Creek 610 Comment
  UC1103585  Carex serratodens Joseph P. Tracy 1925-5-30 7049 Humboldt McClellan Mountain Northern Coast Ranges 822 Comment
  UC658  Carex serratodens H. N. Bolander 1866-1 6476 Humboldt Red Mountains Comment
  CAS-BOT-BC116676  Carex subfusca Joseph Prince Tracy 1934-7-18 13413 Humboldt Horse Mountain. 1371 Comment
  CAS-BOT-BC116681  Carex subfusca Joseph Prince Tracy 1936-6-17 14954 Humboldt Buck Mountain, lower foothills of its NW slope. 762 Comment
  HSC44059  Carex subfusca Thomas W. Nelson 1976-7-9 3004 Humboldt Along creek S of Mount Lassic (Signal Peak). 1707 Comment
  HSC7084  Carex tumulicola H. E. Parks 1924-8-9 2444 Humboldt Near Carlotta Comment
  UC1103116  Carex tumulicola Joseph P. Tracy 1924-9-14 6876 1/2 Humboldt Butter Valley Northern Caost Ranges 152 Comment
  SEINET4170216  Carex unilateralis Unknown 1921-6-12 5828 Humboldt Butler Valley 152 Comment
  UC1103085  Carex unilateralis Joseph P. Tracy 1928-6-24 8471 Humboldt valley of South Yager Creek 762 Comment
  SBBG57215  Carex viridula H. E. Parks -Sep-1935 5214 Humboldt center of Dry Lagoon, S of Orick Comment
  HSC2871  Carpobrotus chilensis D. B. Mitchell 1965-5-21 71 Humboldt 1/2 mi. N of U.S. Coast Guard Station on Samoa Rd. Comment
  HSC2875  Carpobrotus chilensis J. Wendell Howe 1930-5-27 158 Humboldt Pigeon Point Comment
  UCD129945  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie, on ridge 1 m. north above Bull Creek, ca. 2 miles west of Dyerville. Comment
  UC1196862  Castilleja affinis subsp. affinis Joseph P. Tracy 1908-6 2812 Humboldt opposite Buck Mountain; North Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC20521  Castilleja affinis subsp. litoralis D. E. Anderson 1962-7-10 2244 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  JEPS25063  Castilleja affinis subsp. litoralis Joseph P. Tracy 1947-5-24 17692 B Humboldt Big Lagoon 152 Comment
  JEPS57403  Castilleja affinis subsp. litoralis L. R. Heckard with T. I. Chuang 1968-7-4 1979 Humboldt n end Big Lagoon Comment
  UC1353963  Castilleja affinis subsp. litoralis Noel H. Holmgren and James L. Reveal 1966-6-8 2662 Humboldt 0.5 mi w Dry Lagoon (U.S. Hwy 101, m mi s of Orick) Comment
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Jan 8 2015
  UC1374929  Castilleja affinis subsp. litoralis Noel H. Holmgren and Liew Fah Seong 1969-6-24 3611 Humboldt 5.6 mi w Ferndale Comment
  JEPS26222  Castilleja ambigua subsp. ambigua Joseph P. Tracy 1921-7-10 5853 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  SEINET4095429  Castilleja ambigua subsp. ambigua O. M. Clark 1932-1 5331 Humboldt North Eureka. Comment
  HSC37568  Castilleja ambigua subsp. humboldtiensis J. D. Ackerman 1975-6-10 462 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC38444  Castilleja ambigua subsp. humboldtiensis J. P. Smith 1976-7-3 8934 Humboldt Just N of Samoa Bridge Comment
  HSC56121  Castilleja applegatei G. L. Clifton, Griswold 1979-8-1 11903 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC98627  Castilleja applegatei subsp. pinetorum Cara Witte 2008-7-11 875 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC101746  Castilleja attenuata J. P. Smith, J. O. Sawyer 2010-5-2 12810 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  HSC56234  Castilleja miniata Overton 1979-8-1 12314 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  HSC56307  Castilleja miniata Overton, Butler 1979-8-2 12624 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC99512  Castilleja miniata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 174 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
  HSC73640  Castilleja pruinosa M. A. Baker 1980-7-23 3169 Humboldt Near Orleans Mtn. 1859 Comment
  UC199387  Castilleja pruinosa Harley P. Chandler Jun 1901 1364 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Valley 152 Comment
  JEPS82239  Ceanothus Roger Raiche 1983-7-18 30529 Humboldt 0.6 mi n intersection of Shelter Cove Rd (King Peak Rd); King Range Comment
  UC1502103  Ceanothus R. Sutherland 1975-7-4 8 .4.7 75 Humboldt Pt. Delgada Quad. 518 Comment
  HSC44432  Ceanothus arcuatus Brad Klipfel 1975-5-24 634 Humboldt Horse Mtn. Comment
  HSC99132  Ceanothus cordulatus Cara Witte 2008-10-18 1049 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  UC668171  Ceanothus cordulatus Joseph P. Tracy 1933-7-11 12681 Humboldt Cold Springs Grouse Mt. 1432 Comment
  HSC43236  Ceanothus gloriosus var. exaltatus R. Sutherland 1978-1-20 1 .20178 Humboldt Mattole River SSE of Nooning Creek 280 Comment
  HSC37060  Ceanothus incanus R. Sutherland 1975-5-13 18 .13575 Humboldt 290 Comment
  POM118617  Ceanothus incanus Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  HSC55349  Ceanothus integerrimus Griswold, Butler 1979-7-12 7255 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  JEPS42458  Ceanothus integerrimus W. L. Jepson 1902-6-19 1879 Humboldt Bell's Spring to Harris 1066 Comment
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Sep 7 2007
  RSA21590  Ceanothus integerrimus var. californicus Carl B. Wolf 1937-8-13 9235 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CDA36164  Ceanothus integerrimus var. macrothyrsus CDFA Staff 1977-6-21 Humboldt Willow Creek. 0 Comment
  CAS-BOT-BC51216  Ceanothus parryi Mrs. H. C. Cantelow 1935-5-30 829 Humboldt N. of Garberville Comment
  HSC43184  Ceanothus parryi R. Sutherland 1975-4-22 6 .22475 Humboldt Near China Creek at county rd. 207 Comment
  HSC76582  Ceanothus pumilus Denis Kearns 1981-6-24 20 Humboldt Near Cedar Camp 1219 Comment
  HSC98122  Ceanothus pumilus Cara Witte 2007-5-24 118 Humboldt Horse Mountain Botanical Area. Along 6N36. Approximately .6 miles southeast from Radio Towers. 1476 Comment
  BLMAR673  Ceanothus thyrsiflorus Jennifer Wheeler 2013-6-7 673 Humboldt King range, Strawberry Rock 21 Comment
  CAS-BOT-BC52990  Ceanothus thyrsiflorus Duncan Dunning 1921-10-2 705 Humboldt Trinidad 30 Comment
  RSA600896  Ceanothus thyrsiflorus Louis C. Wheeler 1959-8-1 7618 Humboldt Queens Peak Mine. Comment
  HSC98200  Ceanothus velutinus D. E. Anderson 1965-5-1 3591 Humboldt 6.3 mi N of Hoopa along Hwy. 96 Comment
  UC503021  Ceanothus velutinus Joseph P. Tracy 1932-7-17 10698 Humboldt open ground at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  UC702533  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road, 5 mi n and 2 mi e Boynton Prairie; n and e of Boynton Prairie 630 Comment
  CAS-BOT-BC281948  Centaurea benedicta Harold E. Parks; Joseph P. Tracy 1942-7-2 11580 Humboldt Dinsmore's, roadside bordering grain field 762 Comment
  CDA20058  Centaurea diffusa R. Spadoni, Green 2002-10-9 PDR P 070865 Humboldt Northwestern California; Wasteground near old log pond at Pacific Lumber Co, Scotia. 0 Comment
  CDA7304  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 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
  RSA391522  Centaurium muehlenbergii M. V. Hood 1940-08 s.n. Humboldt Eel River - near Redway. 457 Comment
  UC1602124  Centaurium muehlenbergii Joseph P. Tracy 1950-6-23 18873 Humboldt 3 mi n Blocksburg (Alder Point on Larrabee Creek); Larrabee Creek, Alder Point Comment
  HSC45236  Cephalanthera austiniae Thomas W. Nelson, Jane P. Nelson 1977-7-1 3557 Humboldt N side of ridge between Bear Creek & Blanket Creek 1463 Comment
  JEPS51355  Cerastium viride Lincoln Constance 1934-6-3 805 Humboldt on Redwood Hwy. 1 mi. n. Dyerville (rd. from High Rock to Horse Prairie); S. Fork Eel R., Bull Creek Region Comment
  CAS-BOT-BC179476  Cercis occidentalis C. B. Wolf 1931-8-31 2380 Humboldt Gravel slopes on west side of South Fork of Trinity River, 1 mile above its mouth. The Sandy Bar Swimming Hole 243 Comment
  CAS-BOT-BC179481  Cercis occidentalis Henry M. Pollard 1956-8-10 s.n. Humboldt Old Klamath River road near Harley Place, Orleans. Comment
  CAS-BOT-BC135532  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1927-4-10 7897 Humboldt Trinity River Valley, near the South Fork 182 Comment
  MACF027376  Chamaecyparis lawsoniana S. R. Ganley 1972-3-26 1053 Humboldt Along Hwy. 299 365 Comment
  RSA13571  Chamaecyparis lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762 Comment
  UC164837  Chamaesyce serpyllifolia Joseph P. Tracy 1911-7-9 3470 Humboldt near mouth Willow Creek; Valley of Trinity River 152 Comment
  SEINET200780  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1932-7-17 10664 Humboldt Ridges east of Corral Prairie. 1676 Comment
  HSC100931  Cheilanthes californica Miss Handy Jun 1886 343 Humboldt Maple Cr. Comment
  HSC55068  Cheilanthes gracillima G. L. Clifton, Griswold 1979-7-31 11648 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC98769  Cheilanthes gracillima Cara Witte 2007-8-9 628 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .2 miles from intersection with Forest Service Road 4N32B. 1413 Comment
  RSA44511  Cheilanthes gracillima Henry M. Pollard 1947-9-1 s.n. Humboldt Peak of Somes Mountain, near Orleans 1524 Comment
  RSA44501  Chenopodium botrys H. M. Pollard 1947-8-31 s.n. Humboldt Klamath River near Wilson Creek, Orleans region. Comment
  HSC76597  Chimaphila menziesii Teresa Prendusi 1981-7-9 199 Humboldt Near Cedar Camp. 1268 Comment
  CAS-BOT-BC451387  Chimaphila menziesii T. Worley; M. Mill; F. Rosenthal 1985-5-10 56 Humboldt Horse Mountain Rd., approx. 8 miles S of Hwy. 299 1143 Comment
  HSC102198  Chimaphila umbellata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1112 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  HSC72793  Chimaphila umbellata M. A. Baker 1980-6-16 1925 Humboldt Near Monks Camp. 1097 Comment
  JEPS66585  Chimaphila umbellata Lincoln Constance 1934-6-14 873 Humboldt 2 mi. from mouth of Squaw Creek (on rd. to Grasshopper Peak); Bull Creek Region, S. Fork Eel R. 304 Comment
  POM351629  Chrysanthemum leucanthemum B. C. Templeton 1964-6-13 10185 Humboldt North of Patrick's Point on Hwy. 101 Comment
  UCSB1015  Chrysolepis chrysophylla Muller, Cornelius 1954-6-21 Humboldt 8 mi. ESE of Mad River on road to Forest Glen Comment
  UC1193060  Chrysolepis chrysophylla var. minor G. W. Tourtillott 1950-10-11 34 Humboldt 1 mi w Queens Peak 609 Comment
  UC526690  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1934-8-29 13641 Humboldt summit near Blake Lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC20186  Chrysosplenium glechomifolium D. E. Anderson 1967-6-7 4351 Humboldt Along Puter Creek, tributary to Mad River, about 3 mi. S of Blue Lake Comment
  RSA170226  Chrysosplenium glechomifolium Joseph P. Tracy 1918-4-28 4888 Humboldt At Eureka 0 Comment
  CAS-BOT-BC420346  Chrysosplenium glechomifolium V. Rattan 1879-6-1 27 Humboldt Long Prarie Creek Comment
  UC642242  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  HSC36083  Cicuta douglasii Michael Chase 730506 .4 Humboldt W end of Big Lagoon Comment
  HSC56318  Circaea alpina subsp. pacifica Overton, Butler 1979-8-2 12657 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SEINET200612 Image available Cirsium andrewsii H. E. Parks, Joseph P. Tracy 1934-7-13 13383 Humboldt Vicinity of Trinidad. Comment
  CAS-BOT-BC284405  Cirsium arvense Doris K. Kildale 1925-7-26 1069 Humboldt Mad River at West End Crossing Comment
  SEINET9341561  Cirsium brevifolium Unknown 1948-9-3 1850 Humboldt Humboldt Comment
  CAS-BOT-BC284441  Cirsium brevistylum L. R. Abrams 1927-9-1 12062 Humboldt Big Lagoon Comment
  CAS-BOT-BC285527  Cirsium occidentale var. candidissimum Doris K. Kildale 1926-5-2 1999 Humboldt Kneeland Prairie - summit 853 Comment
  CAS-BOT-BC285529  Cirsium occidentale var. candidissimum L. B. Kildale 1930-7-7 10261 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  OBI36336  Cirsium occidentale var. candidissimum David J. Keil 1983-7-1 17273 Humboldt Ca 13 mi W of jctn US 101 along Bull Crk Flats Rd Comment
  UC176341  Cirsium occidentale var. candidissimum Joseph P. Tracy 1912-7-26 3854 1/2 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1199137  Cirsium occidentale var. venustum Joseph P. Tracy 1936-7-5 15045 Humboldt Horse Mt. 1066 Comment
  UC582532  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1930-7-21 8887 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  SEINET5506249 Image available Cirsium remotifolium var. odontolepis Joseph P. Tracy 1949-8-11 18472 Humboldt E of headwaters of Redwood Creek, beginning where powerline crosses and going South; Kinsey Ridge; S from Grouse Mtn, 2 to 6 Mi 1280 Comment
  CAS-BOT-BC160955  Clarkia amoena subsp. amoena Doris K. Kildale 1926-7-11 2367 Humboldt Wildcat Ridge near Mountain Glen Comment
  CAS-BOT-BC164177  Clarkia concinna M. S. Jussel 1931-5-2 s.n. Humboldt Garberville Comment
  CAS-BOT-BC164179  Clarkia concinna S. K. Harris; J. P. Tracy 1936-6-10 3265 Humboldt West of the South Fork of the Trinity River near its mouth 640 Comment
  HSC35351  Clarkia gracilis J. D. Ackerman, A. M. Montalvo 1975-6-22 485 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  CAS-BOT-BC172515  Clarkia purpurea subsp. quadrivulnera Alice Eastwood; John Thomas Howell 1937-6-22 4722 Humboldt Near Harris Comment
  UC1196980  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1914-6-14 4498 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek 60 Comment
  CAS-BOT-BC172394  Clarkia purpurea subsp. viminea Henry M. Pollard 1948-7-19 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC164822  Clarkia rhomboidea Doris K. Kildale 1925-6-21 723 Humboldt Briceland Bridge 1/2 mile west of Garberville 114 Comment
  HSC73748  Clarkia rhomboidea M. A. Baker 1980-7-15 2948 Humboldt Near Whiting Ridge. 1341 Comment
  UCD100612  Claytonia exigua Thomas W. Nelson; James L. Nelson 1980-6-10 5435 Humboldt Along the east side of Red Mountain. 1371 Comment
  HSC41230  Claytonia lanceolata Brad Klipfel 1974-5-8 318 Humboldt Horse Mtn. Comment
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Sep 23 2019
  HSC34799  Claytonia sibirica Scott M. Kruse 1975-4-9 5 Humboldt Redwood Park, Arcata 18 Comment
  HSC48826  Claytonia sibirica Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 39 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC54539  Claytonia sibirica Overton, Butler 1979-7-23 9515 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC64327  Claytonia sibirica J. P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC76598  Claytonia sibirica Teresa Prendusi 1981-7-24 474 Humboldt Near Whiteys Peak 1585 Comment
  SBBG69724  Claytonia sibirica H. and M. Dearing 1939-6-21 3689 Humboldt E fork of Willow Crk Comment
  UC1028307  Claytonia sibirica George B. Rossbach 1955-6-8 263 Humboldt Prairie Creek Redwoods State Park (Route 101) Comment
  HSC99242  Claytonia washingtoniana C. E. Fellows 1971-6-7 456 Humboldt 1 mi. E of Freshwater, near creek S of Freshwater Park Comment
  UC673154  Clematis lasiantha Lincoln Constance and Reed C. Rollins 1942-5-11 2873 Humboldt 6 mi. s. Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  BLMAR187  Clinopodium douglasii Donald Hazlett 1994-6-7 187 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  POM109524  Clintonia andrewsiana Marcus E. Jones 1924-4-28 s.n. Humboldt Scotia. Comment
  CAS-BOT-BC499339  Clintonia andrewsiana Doris K. Kildale 1931-5-10 10682 Humboldt Snow Camp Comment
  HSC15445  Clintonia andrewsiana J. F. Knezevich 1968-5-13 428 Humboldt Near Arcata above Freshwater Forest Comment
  HSC102559  Clintonia uniflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1547 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC75449  Collinsia grandiflora J. O. Sawyer 1980-7-18 3583 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC22862  Collinsia grandiflora D. E. Anderson 1965-4-24 3534 Humboldt Along Titlow Hill Rd. Comment
  UC1196766  Collinsia grandiflora Joseph P. Tracy 1933-6-13 12572 Humboldt w Hoopa (near summit of Hoopa Mtn on rd from Hoopa to Bair's); Hoopa Mtn 1066 Comment
  HSC98870  Collinsia linearis Cara Witte 2007-6-20 313 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  UC902215  Collinsia linearis Joseph P. Tracy 1947-7-5 17790 Humboldt ridge w of Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  JEPS7425  Collinsia linearis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5682 Humboldt Hupa Mt.; North Coast Ranges Comment
  SEINET12268979  Collinsia linearis J. P. Tracy 1950-1 18969 Humboldt Happy Camp Mountain, Trinity Summit on ridge 2 mi E of Groves Prairie 1524 Comment
  UC1196755  Collinsia linearis Joseph P. Tracy 1919-5-31 5155 Humboldt near Willow Creek (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC70373  Collinsia parviflora Gail Newton 1980-6-7 136 Humboldt Near Brush Mtn. 1128 Comment
  UCR45410  Collinsia parviflora Barry Silver 1986-4-23 535 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  POM20818  Collinsia sparsiflora var. bruceae Joseph P. Tracy 1916-5-2 4685 Humboldt Garden grown, at Eureka, from seed, my #4242 from lower slopes of Buck Mountain. 762 Comment
  JEPS6323  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1932-5-10 9932 Humboldt Beaver River Ridge; North Coast Ranges 609 Comment
  HSC100912  Collinsia torreyi Carl C. Marshall Jun 1886 301 Humboldt Trinity Summit. Comment
  UC1197855  Collomia grandiflora Joseph P. Tracy July, 1908 2785 Humboldt ridge between Van Duzen and Mad Rivers at Low Gap (Humboldt and Trinity counties); Northern Coast Ranges 457 Comment
  UC52837  Collomia grandiflora Joseph Burtt Davy and Walter C. Blasdale 1899-5 5770 Humboldt hills around Hoopa Valley 304 Comment
  BLMAR164  Collomia heterophylla Donald Hazlett 1994-6-7 164 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC60862  Collomia heterophylla Harley P. Chandler June, 1901 1401 Humboldt Klamath River North Coast Ranges 213 Comment
  RSA21450  Collomia heterophylla C. B. Wolf 1937-8-13 9214 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  RSA71937  Collomia heterophylla F. W. Peirson 1926-7-12 7035 Humboldt Redwood Creek bottom landes below bridge, Orick Comment
  SEINET8729295 Image available Collomia heterophylla S. K. Harris 1942-1 1386 Humboldt Fickle Hill Road to Boynton Prairie, SN 2 E 600 Comment
  HSC56227  Collomia tracyi G. L. Clifton, Griswold 1979-8-2 12281 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC978531  Collomia tracyi Joseph P. Tracy Jul 16 1930-Jul 19 1930 9046 Humboldt open glades along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  CHSC31328  Conium maculatum Mark Stopher 1980-6-4 91 Humboldt Along disturbed roadside of Hwy 101 near Elk River s of Eureka. 1 Comment
  UC1197345  Conium maculatum Joseph P. Tracy 1933-8-22 12975 Humboldt at Eureka Eureka 6 Comment
  SEINET10454738  Conium maculatum Mary Susan Taylor 1977-8-5 Taylor 1433 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  UC165072  Conyza canadensis Joseph P. Tracy 1908-7-1 2908 Humboldt ridge between Van Duzen and Mad Rivers (near Low Gap, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  HSC103687  Coptis laciniata M. R. Mesler, Jen Kalt 2008-3-19 858 Humboldt Above Mattole River, 2 miles S of Thorn Junction on Briceland-Thorn Rd 226 Comment
  HSC16581  Corallorhiza mertensiana D. E. Anderson 1965-6-1 3781 Humboldt Near Brush Mtn. lookout 1189 Comment
  HSC30139  Corallorhiza striata A. Montalvo, J. D. Ackerman 1974-4-14 171 Humboldt 100 m from intersection of Hwy. 299 along Chezem Rd., just W of Redwood Creek Comment
  HSC83034  Cordylanthus maritimus subsp. palustris A. L. Eicher 1985-8-17 Humboldt Marsh bordering Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  CAS-BOT-BC101139  Corethrogyne filaginifolia J. Burtt Davy 1899-6-30 6185 Humboldt near Ferndale, n. Coast Ranges Comment
  CAS-BOT-BC212007  Cornus nuttallii John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  HSC98742  Cornus sericea subsp. occidentalis Cara Witte 2007-6-27 377 Humboldt Forest Service Road 6N08. Friday Ridge Road. Approximately 2 miles south of intersection with 5N09. 1474 Comment
  CAS-BOT-BC210535  Cornus sessilis Doris K. Kildale 1926-8-15 2507 Humboldt Willow Creek, near its junction with the Trinity River 152 Comment
  HSC6421  Cornus sessilis D. E. Anderson 1963-3-1 2368 Humboldt E Fork Forest Camp, along E Fork Willow Creek. Comment
  HSC6423  Cornus sessilis H. E. Parks, S. T. Parks 1941-7-5 11492 Humboldt Horse Linto Creek. Comment
  JEPS35937  Corylus californica Joseph P. Tracy 1938-7-6 16027 Humboldt Big Lagoon Prairie 15 Comment
  UC1175128  Corylus californica P. C. Everett and E. K. Balls 1959-10-24 23956 Humboldt 4.7 mi S from Bluff Creek (Hwy 96 from Orleans to Weitchpec) 121 Comment
  HSC70453  Corylus cornuta subsp. californica Gail Newton 1980-7-20 1642 Humboldt Near Bell Swamps 1426 Comment
  HSC76056  Corylus cornuta subsp. californica Overton, Butler 1979-8-2 12590 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC98468  Cotoneaster simonsii Peter Zika 2007-7-19 23174 Humboldt Hookton Rd., S end of Humboldt Bay 10 Comment
  RSA20802  Crataegus douglasii Carl B. Wolf 1937-8-13 s.n. Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  HSC97308  Crataegus suksdorfii M. Mesler 2006-6-6 610 Humboldt Big Hill Rd. 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  HSC5439  Crepis acuminata J. P. Tracy 1926-6-20 7621 Humboldt Horse Mt. Comment
  CAS-BOT-BC291480  Crepis capillaris Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA47145  Crepis capillaris Doris K. Kildale 1925-7-17 1073 Humboldt Eureka- Cutter tract Comment
  JEPS22553  Crocidium multicaule Joseph P. Tracy 1933-5-21 12212 Humboldt McClellan Mountain 822 Comment
  HSC57202  Cryptantha affinis Griswold, Butler 1979-7-10 7108 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  UC1239666  Cryptantha affinis Harold E. Parks and Joseph P. Tracy 1934-6-27 11059 Humboldt Grouse Mt. 1432 Comment
  SEINET12280692  Cryptantha affinis J. P. Tracy 1950-1 18956 Humboldt Friday Ridge 1219 Comment
  UC1239655  Cryptantha flaccida Joseph P. Tracy 1939-8-5 16383 Humboldt Dinsmore's 746 Comment
  HSC57212  Cryptantha simulans Griswold, Butler 1979-7-12 7247 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC3589  Cryptantha torreyana H. E. Parks, J. P. Tracy 1934-6-27 11058 Humboldt Grouse Mtn. 1433 Comment
  UC79506  Cryptantha torreyana J. W. Blankinship 1893-6-29 Humboldt Eel River Comment
  HSC102612  Cryptogramma acrostichoides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1599 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC198629  Cuscuta occidentalis Joseph P. Tracy 1916-9-6 4760 Humboldt headwaters of Canoe Creek Northern Coast Ranges, Grasshopper Ridge, Canoe Creek 609 Comment
  HSC104274  Cuscuta pacifica var. pacifica Samantha E. Andres 2016-5-29 16 Humboldt Salt Marsh Trail, Lanphere Dunes Unit 30 Comment
  UCSB24349  Cuscuta subinclusa Tracy, Joseph 1924-7-20 Humboldt Brannan Mt.; on Willow Cr. Road 1005 Comment
  HSC3640  Cynoglossum grande Elrid H. Spinas 1948-5-15 3 Humboldt Horse Mtn. Comment
  HSC3641  Cynoglossum grande A. H. Teshima 1963-3-10 5 Humboldt Moonstone Beach area Comment
  UC582617  Cynoglossum occidentale Joseph P. Tracy 1936-8-8 15125 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  UCD60170  Cynosurus echinatus P. B. Kennedy 1929-6-14 s.n. Humboldt Arcata, Range of California Barrel Co. Comment
  HSC97544  Cyperus eragrostis Ivy Watson 2008-10-5 40 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  HSC95388  Cyperus eragrostis Andrea Pickart 2002-7-9 176 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  CAS-BOT-BC70552  Cystopteris fragilis Arnold Tiehm 2000-8-30 13381 Humboldt Santa Rosa Range, Buckskin Mountain Comment
  HSC14666  Cytisus scoparius R. E. Hafenfeld 1965-5-13 67 Humboldt County Rd. 1/2 mi. from Gold Bluff Beach Rd. Comment
  HSC54578  Dactylis glomerata Overton, Butler 1979-7-24 9616 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC102143  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1049 Humboldt Patterson Meadows 1566 Comment
  HSC32479  Danthonia californica D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5721 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC73543  Danthonia californica Gail Newton 1980-7-14 1468 Humboldt Near Last Chance Ridge. 1219 Comment
  UC718006  Danthonia californica David D. Keck 1944-7-11 5493 Humboldt 3 mi ne Capetown 152 Comment
  UC526683  Danthonia californica var. americana Joseph P. Tracy 1927-7-4 8234 Humboldt Lone Star Creek North Coast Ranges, Iaqua 609 Comment
  JEPS49583  Darmera peltata W. L. Jepson 1902-6-30 1958 Humboldt Redwood Creek; Berry's Ranch Comment
  UC585991  Datura stramonium Joseph P. Tracy 1924-8-31 6837 Humboldt Klamath River at Bluff Creek; Klamath River at Bluff Creek 91 Comment
  JEPS15997  Daucus pusillus W. L. Jepson 1932-7-24 16387 Humboldt Mail Ridge Comment
  UC154247  Daucus pusillus Joseph P. Tracy July, 1908 2795 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt & Trinity Co.'s); Northern Coast Ranges, Humboldt & Trinity Co.'s 914 Comment
  HSC97204  Delphinium decorum subsp. tracyi Kiera A. Freeman, Heather J. Perry 2007-6-13 8 Humboldt 1 mi. E of NF1 on FS 5N04 1585 Comment
  UC1005604  Delphinium decorum subsp. tracyi Frank W. Gould 1939-5-29 837 Humboldt in wet meadow near ski hut; Horse Mountain 1005 Comment
  UC1196311  Delphinium hesperium subsp. pallescens Joseph P. Tracy 1932-6-14 10146 Humboldt open hillside near South Fork; Northern Coast Ranges, Trinity River Valley 304 Comment
  CAS-BOT-BC9959  Delphinium nudicaule Volney Rattan 1879-1-1 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC9956  Delphinium nudicaule Joseph Prince Tracy 1927-5-30 8084 Humboldt Near Briceland 243 Comment
  HSC100615  Delphinium nudicaule Carl C. Marshall May 1887 412 Humboldt Lawrence Creek. Comment
  HSC64040  Delphinium nudicaule Carl Wishner 1978-5-1 467 Humboldt Along Hwy. 299, 3 mi. E of Berry Summit Comment
  UC1196332  Delphinium nudicaule Joseph P. Tracy 1921-6-19 5830 Humboldt Berry Mtn. Northern Coast Ranges 914 Comment
  HSC32854  Delphinium trolliifolium Thomas W. Nelson, James Nelson 1973-5-28 942 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA32276  Delphinium trolliifolium H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale Comment
  HSC35449  Deschampsia cespitosa J. D. Ackerman 1975-8-2 607 Humboldt Intersection of Indianola Cutoff and US Hwy 101. 3 Comment
  CAS-BOT-BC194290  Deschampsia cespitosa subsp. cespitosa Doris Kildale 1931-5-10 10679 Humboldt Snow Camp Comment
  CAS-BOT-BC192545  Deschampsia cespitosa subsp. holciformis J. B. Davy; W. C. Blasdale 1899-5-1 6214 Humboldt Eureka Comment
  HSC27023  Deschampsia cespitosa subsp. holciformis Brad W. Klipfel 1973-8-17 274 Humboldt Big Lagoon Park, at the Sphagnum bog. Comment
  UC1103222  Deschampsia danthonioides Joseph P. Tracy 1932-5-26 10276 Humboldt Fort Baker Ranch North Coast Ranges, Fort Baker Ranch 762 Comment
  CAS-BOT-BC201772  Deschampsia elongata W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC9602  Deschampsia elongata True Hoyle 1967-7-24 29267 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass Comment
  UC1541537  Deschampsia elongata Harold E. Parks September 1928 172 Humboldt Big Lagoon Comment
  UC526672  Deschampsia elongata Joseph P. Tracy 1932-7-17 10680 Humboldt ridges e. of Corral Prairie; Klamath Mts., Trinity Summit 1828 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
  HSC74201  Descurainia incisa subsp. incisa M. A. Baker 1980-7-19 3005 Humboldt Near Bret Hole. 1814 Comment
  HSC76359  Dicentra formosa Denis Kearns 1981-7-8 164 Humboldt Near Bluff Creek 622 Comment
  JEPS9737  Dicentra formosa Joseph P. Tracy 1933-5-28 12414 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC1196304  Dicentra formosa Joseph P. Tracy 1939-7-9 16329 Humboldt Snow Camp 1402 Comment
  JEPS9738  Dicentra formosa Joseph P. Tracy 1933-7-16 12794 Humboldt South Fork Mt. North Coast Ranges (near top at county line) 1676 Comment
  UC1362290  Dicentra formosa Kingsley R. Stern 1964-6-13 2106 Humboldt 2.3 mi w U.S. Highway 101 (on e bank of Redwood Creek); Redwood Creek Comment
  CAS-BOT-BC402405  Dicentra formosa subsp. formosa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  RSA433572  Dicentra formosa subsp. formosa Christopher Davidson 1973-5-29 2200 Humboldt Ca. 2 mi S of Carlotta on St. Hwy 36 61 Comment
  CAS-BOT-BC209194  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  UC1198173  Dichelostemma capitatum Joseph P. Tracy 1927-5-22 8074 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC483666  Dichelostemma capitatum Doris K. Kildale 1928-5-6 5995 Humboldt Garberville, south fork of Eel River Comment
  HSC97477  Dichelostemma capitatum subsp. capitatum Cara Witte 2007-5-21 65 Humboldt White Oak Opening. 1257 Comment
  UC1950087  Dichelostemma capitatum subsp. capitatum Barbara Ertter with Thomas J. Delendick 1987-5-16 6927 Humboldt near seepage on N side of road; S-facing slope; Vista Point just W of Berry Summit on Hwy 299, ca 15 airmiles E of Arcata Comment
  UC1198183  Dichelostemma ida-maia Joseph P. Tracy 1927-8-14 8329 Humboldt Big Lagoon 152 Comment
  CAS-BOT-BC501025  Dichelostemma ida-maia M. S. Jussel 1931-5-2 s.n. Humboldt Eureka Comment
  UC1198161  Dichelostemma multiflorum Joseph P. Tracy 1911-7-6 3346 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  CAS-BOT-BC500982  Dichelostemma multiflorum Harley P. Chandler 1901-6-1 1310 Humboldt Hupa Indian Reservation 152 Comment
  JEPS15182  Digitalis purpurea G. T. Nordstrom Jul 1937 1442 Humboldt 1.6 mi wsw Orick; Orick Quad. 45 Comment
  CAS-BOT-BC208999  Digitaria sanguinalis Henry M. Pollard 1948-7-27 s.n. Humboldt Orleans Comment
  CAS-BOT-BC150350  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna Comment
  SBBG6909  Diplacus aurantiacus M. J. Cody 1938-7-14 Humboldt Trinidad Head Comment
  SEINET8354549  Diplacus aurantiacus Unknown 1960-6-9 935 Humboldt 2 mi. s. Miranda; U.S. Hwy 101. 91 Comment
  UC1197658  Disporum hookeri Joseph P. Tracy 1937-7-2 15409 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  SEINET4170354  Disporum hookeri Joseph P. Tracy, Tom Britton 1924-5-4 6670 Humboldt Grizzly Creek , on Van Duzen River Comment
  UC666968  Disporum smithii Joseph P. Tracy 1933-5-21 12209 Humboldt McClellan Mountain 670 Comment
  UCSC000139  Disporum smithii R. Stahelin 1933-5-17 s.n. Humboldt Arcata City Park - Eureka Comment
  CAS-BOT-BC208658  Distichlis spicata Malcom A. Nobs; S. Galen Smith 1949-8-3 1178 Humboldt Salt marshes around Fields Landing Comment
  UC249802  Distichlis spicata Joseph P. Tracy 1923-6-19 6286 Humboldt Mouth of Davies Creek Comment
  UC38072  Distichlis spicata Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6202 Humboldt near Ferndale; ; Ferndale, Humboldt Co. 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
  HSC34498  Dodecatheon hendersonii J. D. Ackerman 1975-5-3 439 Humboldt Ca. 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection W of Redwood Creek Comment
  HSC17866  Dodecatheon hendersonii Francis Winter 1960-4-24 Humboldt Pine Ridge Summit, 3 mi. NE of Redwood Creek Ranch 854 Comment
  HSC59494  Drosera rotundifolia M. A. Ericksen 1979-4-21 213 Humboldt Big Lagoon County Beach, ca. 90 yards from the Rd. in center of bog. Comment
  RSA0011668  Drosera rotundifolia C. B. Wolf 1934-7-2 5897 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  UC1198847  Drosera rotundifolia Joseph P. Tracy 1924-7-4 6710 Humboldt Snow Camp Meadow Northern Coast Ranges 1371 Comment
  HSC35347  Drymocallis glabrata A. M. Montalvo, J. D. Ackerman 1975-6-22 480 Humboldt 6.4 mi. W of Dinsmore on Hwy. 36 Comment
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt Comment
  CAS-BOT-BC159609  Drymocallis glandulosa var. glandulosa M. S. Jussel 1931-5-2 139 Humboldt 6 miles from Garberville Comment
  HSC40018  Drymocallis glandulosa var. glandulosa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2922 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC154498  Drymocallis glandulosa var. wrangelliana Mrs. M. H. Manning 1900-1 Humboldt Hoopa Comment
  UC492181  Drymocallis glandulosa var. wrangelliana Joseph P. Tracy 1927-6-18 8181 Humboldt three mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC44564  Drymocallis hansenii Brad Klipfel 1973-7-15 184 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC48406  Drymocallis lactea var. lactea Brad Klipfel 1973-6-10 107 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58089  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-8-1 11998 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  JEPS337  Dryopteris arguta Wm. K. D. Reynolds August, 1933 Humboldt Riceland Comment
  UCD136407  Dryopteris arguta K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  SEINET6424490 Image available Dryopteris dilatata Hicks, Carpenter 1977-7-12 Humboldt Prairie Creek State Park Comment
  POM118351  Dryopteris expansa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
Read comments
Dec 31 2015
  JEPS49929  Dudleya farinosa W. L. Jepson 1902-8-4 2144 Humboldt Cape Mendocino 1 Comment
  SFV7745  Dysphania botrys T. Gordon, K. Kimbrough 1975-8-22 1225 Humboldt Eel River. 61 Comment
  HSC58703  Eleocharis acicularis Griswold, Butler 1979-7-11 7086 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC668026  Eleocharis bella Joseph P. Tracy 1931-1 9727 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC1103655  Eleocharis macrostachya Joseph P. Tracy 1935-8-25 14750 Humboldt Stone Lagoon 3 Comment
  UC1103666  Eleocharis macrostachya Joseph P. Tracy 1935-5-25 13849 Humboldt Fort Seward 106 Comment
  CHSC96433  Eleocharis pachycarpa Gordon Leppig 1998-7-19 979 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E, 4557202N. 3 Comment
  CAS-BOT-BC113206  Eleocharis parishii Doris K. Kildale 1927-7-3 3664 Humboldt Willow Creek Flat, swampy outflow from spring. Comment
  RSA246895  Eleocharis radicans Robert F. Thorne, Percy C. Everett 1965-8-9 35342 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  HSC103095  Elymus elymoides subsp. californicus Sydney Carothers 2014-7-3 19 Humboldt Six Rivers National Forest, Lassics Botanical Area, Mt. Lassic, upper north slope 1775 Comment
  UC552793  Elymus elymoides subsp. elymoides Joseph P. Tracy 1935-7-28 14317 Humboldt Devil's Hole Trinity Summit (head) 1828 Comment
  HSC76198  Elymus glaucus Overton, Butler 1979-8-2 12509 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  RSA129235  Elymus glaucus H. S. Yates 1936-6-17 5705 Humboldt South Fork Pk.; Lower N.W. slope of Buck Mt. 793 Comment
  UC1103207  Elymus glaucus J. P. Tracy 1901-6-16 1143 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1103476  Elymus glaucus Joseph P. Tracy 1936-6-9 14889 Humboldt Bear River Ridge 457 Comment
  HSC9731  Elymus mollis subsp. mollis D. B. Bader 1963-5-1 16 Humboldt Clam beach Lagoons, W of Hwy. 101. Along railroad tracks. Comment
  HSC9735  Elymus mollis subsp. mollis W. F. Cartwright 1965-5-10 67 Humboldt 1 mile W of Mckinleyville on the beach. Comment
  CAS-BOT-BC234112  Elymus multisetus Joseph P. Tracy 1933-7-25 12893 Humboldt Grouse Mountain 1524 Comment
  HSC72983  Elymus multisetus M. A. Baker 1980-7-11 2785 Humboldt Near Red Mtn. 1341 Comment
  HSC97932  Elymus multisetus Cara Witte 2007-6-14 271 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  UC573853  Elymus multisetus H. S. Yates 1936-6-17 5722 Humboldt near Burr Valley; South Fork Pk. Quadrangle Comment
  RSA256587  Empetrum eamesii subsp. hermaphroditum Gary S. Lester 1975-4-6 604 Humboldt Trinidad State Beach: Megwil Point, on Elk Head, N of Trinidad. 15 Comment
  UC1222844  Epilobium brachycarpum Joseph P. Tracy 1950-9-10 19355 Humboldt Bear River Ridge 609 Comment
  UC583060  Epilobium brachycarpum P. A. Munz 1936-8-10 14337 Humboldt 15 mi e Bridgeville (roadside); Little Van Duzen River Comment
  RSA44304  Epilobium canum subsp. latifolium H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mts. 1524 Comment
  HSC54025  Epilobium ciliatum Griswold, Butler 1979-7-12 7194 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  JEPS31530  Epilobium ciliatum subsp. ciliatum Lincoln Constance 1934-5-31 765 Humboldt Bull Cr. flat South Fork Eel River, Bull Creek region, Bull Creek (along n side of creek from w boundary of Park to Grasshopper Pk. (Squaw Cr. rd.)) Comment
  UC562504  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1933-8-6 12941 Humboldt along stream French Camp Ridge 1066 Comment
  HSC76625  Epilobium ciliatum subsp. glandulosum Teresa Prendusi 1981-7-24 481 Humboldt Near Whiteys Peak 1585 Comment
  UC1197007  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1914-9-6 4605 Humboldt between High Prairie and Snow Camp (in peat bog); Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC16367  Epilobium ciliatum subsp. watsonii J. P. Tracy 1926-7-25 7756 Humboldt Big Lagoon Comment
  HSC16346  Epilobium ciliatum subsp. watsonii D. E. Anderson 1961-8-25 1742 Humboldt 1.5 mi. S of Trinidad Comment
  POM225270  Epilobium foliosum P. A. Munz 1936-8-10 14341 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. Comment
  HSC55015  Epilobium hallianum Overton, Butler 1979-7-31 11407 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC67190  Epilobium minutum Thomas W. Nelson, James Nelson 1980-6-10 5426 Humboldt Along NE side of Red Mtn. 1433 Comment
  HSC97478  Epilobium minutum C. Witte 2007-5-23 87 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  RSA249432  Epilobium minutum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5598 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  POM272052  Epilobium septentrionale J. W. Thompson 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC56974  Equisetum arvense Joseph P. Tracy 1937-7-2 15391 Humboldt Happy Camp Mountain (in Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  UC549763  Equisetum hyemale subsp. affine Joseph P. Tracy 1933-6-6 12506 Humboldt Trinidad; Northern Coast Region 60 Comment
  RSA53855  Equisetum hyemale var. affine Henry M. Pollard 1946-8-31 s.n. Humboldt New Wilson Creek, Orleans Mt. Comment
  UC212870  Eragrostis pilosa var. pilosa Joseph P. Tracy 1920-8-15 5361 Humboldt mouth of Bluff Creek (Klamath R.); Northern Coast Ranges, Klamath R. 152 Comment
  HSC78606  Erechtites glomeratus L. P. Janeway 1984-5-16 793 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd. just N of the boat ramp 3 Comment
  RSA167387  Erechtites glomeratus Joseph P. Tracy 1950-9-10 19360 Humboldt Bear River Ridge, 1 mile north of Capetown. 305 Comment
  HSC24597  Erechtites minimus Jerry Parker 1968-10-23 177 Humboldt Clam Beach Comment
  HSC22165  Ericameria greenei J. O. Sawyer 1968-9-27 730 Humboldt Near Waterdog Lakes and N Trinity Mtn. 1768 Comment
  UC912295  Erigeron biolettii Herbert L. Mason 1928-7-14 4908 Humboldt near Garberville; East Fork Eel River Comment
  HSC100430  Erigeron canadensis Carl C. Marshall Oct 1886 347 Humboldt Near North Fork. Comment
  CAS-BOT-BC296109  Erigeron foliosus var. confinis Marcus E. Jones 1931-7-16 29131 Humboldt Junction east of Arcata Comment
  CAS-BOT-BC300674  Erigeron foliosus var. mendocinus Alice Eastwood; John Thomas Howell 1937-6-22 4731 Humboldt Near Alder Point Comment
  HSC97707  Erigeron maniopotamicus Thomas W. Nelson, James Nelson 1980-6-10 5395 Humboldt Jack Rabbit Valley, along Swayback Ridge 4-wheel drive road, 1 mi. S of junction with Forest Service road 1494 Comment
  CAS-BOT-BC214590  Erigeron philadelphicus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CHSC324  Erigeron philadelphicus A. Small 1954-6-7 Humboldt 1/2 mi. s. of Capetown. 60 Comment
  SBBG63320  Erigeron philadelphicus J. R. and R. C. Robbins 1932-7-24 Humboldt S of Scotia Comment
  UCD132041  Erigeron philadelphicus var. philadelphicus P. B. Kennedy 1929-6-12 s.n. Humboldt Eureka. Comment
  HSC35695  Eriogonum compositum var. compositum Thomas W. Nelson, B. Reinhardt 1975-7-30 2102 Humboldt Beside road out Whiting Ridge Comment
  NY323307  Eriogonum greenei E. L. Greene 1876-7-7 s.n. Humboldt Comment
  CAS-BOT-BC259161  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  HSC39955  Eriogonum latifolium Linda M. Barker 1976-6-22 1615 Humboldt 3 mi. W of Arcata Comment
  UC1225802  Eriogonum latifolium Joseph P. Tracy 1947-7-3 17761 Humboldt Trinidad 3 Comment
  UC727179  Eriogonum latifolium A. A. Heller 1924-7-22 13873 Humboldt Samoa Comment
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Sep 29 2006
  HSC95098  Eriogonum latifolium Andrea Pickart 2002-6-30 141 Humboldt Lanphere Dunes, Humboldt Bay National Wildlife Refuge 24 Comment
  SEINET10479505  Eriogonum latifolium Mary Susan Taylor 1982-10-24 Taylor 5180 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  SEINET3386405 Image available Eriogonum latifolium Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-9 15112 Humboldt On sand dunes, Clam Beach, 15 miles N of Eureka Comment
  UC146156  Eriogonum latifolium J. P. Tracy 1904-7-4 2115 Humboldt vicinity Eureka (bluff at Bucksport); Bucksport 0 Comment
  UC14097  Eriogonum luteolum var. luteolum Chesnut and Drew 1888-7-23 Humboldt Hyampon Comment
  CAS-BOT-BC261499  Eriogonum nudum var. nudum A. G. Vestal 1937-6-20 s.n. Humboldt 4 mi. N. of Petrolia Comment
  RSA18610  Eriogonum nudum var. nudum Carl B. Wolf 1937-9-8 9300 Humboldt North Coast Range, Bull Creek- Petrolia Road, 11 miles west of redwood highway. 305 Comment
  CAS-BOT-BC269864  Eriogonum nudum var. pubiflorum V. Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  UC205641  Eriogonum roseum Joseph P. Tracy 1919-9-13 5191 Humboldt Trinity River near Willow Creek - Northern Coast Ranges, Trinity River Comment
  HSC40826  Eriogonum strictum var. greenei Thomas W. Nelson, James Nelson 1976-7-26 3041 Humboldt Middle pk. of Mt. Lassic group 1738 Comment
  HSC98923  Eriogonum umbellatum var. goodmanii Cara Witte 2007-7-3 404 Humboldt Along National Forest 1 on Kinsey Ridge. 1299 Comment
  SEINET13095713  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. 1296 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
  UC1198157  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1932-7-12 10459 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  UC1980558  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8347 Humboldt Along U. S. Forest Service Road 1 near White Rock Springs at milepost 7.6, about 7.8 southwest of Salyer. Comment
  SEINET10551827  Eriophorum crinigerum Henry N. Bolander 1866-1 Bolander 6475 Humboldt Red Mountain. Comment
  CDA18219  Eriophyllum lanatum var. achilleoides G. D. Barbe, T. C. Fuller 1974-6-17 1847 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  JEPS73713  Eriophyllum lanatum var. achilleoides L. R. Heckard with T. I. Chuang 1968-7-5 1985 Humboldt Mail Ridge road 4.3 mi n Harris road Comment
  UC1199141  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1934-7-6 13664 Humboldt Iaqua; North Coast Ranges, Iaqua 609 Comment
  CAS-BOT-BC301012  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1925-6-28 913 Humboldt Fleener Creek Comment
  HSC96252  Eriophyllum lanatum var. grandiflorum M. Lindquist, C. Riley 2005-6-8 4 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 973 Comment
  RSA168816  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1944-7-3 17480 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA168821  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1947-7-5 17784 Humboldt Ridge west of Mud Springs; Trinity Summit 1159 Comment
  CAS-BOT-BC301687  Eriophyllum lanatum var. lanceolatum Harley P. Chandler 1901-6-1 1403 Humboldt North Coast Ranges. Klamath River 243 Comment
  UC34184  Eriophyllum lanatum var. lanceolatum Harley P. Chandler 1901-6-1 1403 Humboldt Klamath River North Coast Ranges 243 Comment
  HSC36377  Eriophyllum staechadifolium Thomas W. Nelson 1975-8-10 2240 Humboldt At Table Bluff Comment
  HSC47494  Erodium cicutarium Sheila Logan 1978-4-9 18 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC8495  Erodium cicutarium R. T. Forester 1963-3-13 23 Humboldt 1/4 mi. N of Fairhaven on Samoa Rd. Comment
  UC183763  Erodium moschatum Joseph P. Tracy 1912-5-30 3640 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC41572  Erysimum capitatum Doris Kildale Gillespie 1931-6-7 10624 Humboldt South Fork Mount Blake Lookout. 1726 Comment
  HSC101975  Erysimum capitatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 872 Humboldt Patterson Meadows 1566 Comment
  HSC64123  Erysimum capitatum var. capitatum J. P. Smith 1973-5-26 6791 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC73747  Erysimum capitatum var. capitatum M. A. Baker 1980-7-15 2949 Humboldt Near Whiting Ridge. 1341 Comment
  HSC26313  Erysimum menziesii Thomas W. Nelson 1971-4-16 383 Humboldt Near Samoa coast Guard Station. Comment
  UC492264  Erysimum perenne Joseph P. Tracy 1932-7-12 10451 Humboldt Trinity Summit Klamath Mountains 1524 Comment
  CAS-BOT-BC153743  Erythranthe alsinoides Doris K. Kildale 1926-3-21 1576 Humboldt Kneeland Prairie - Summit 853 Comment
  SEINET8371203  Erythranthe dentata L. F. Henderson 1933-5-27 15635 Humboldt Arcata-Redding road. Comment
  HSC38519  Erythronium californicum D. E. Anderson, J. P. Smith 1971-6-18 - 1081 Humboldt Horse Mtn. Comment
  UC30098  Erythronium californicum Mrs. M. H. Manning 1902-3 Humboldt near Hupa Comment
  UC666967  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC504310  Erythronium californicum Michalski; Raum; Hopson 1987-4-1 87 Humboldt Larabee Buttes Comment
  HSC34508  Erythronium oregonum subsp. leucandrum J. D. Ackerman 1975-5-3 437 Humboldt 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection, W of Redwood Creek Comment
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Mar 11 2013
  CAS-BOT-BC133333  Erythronium revolutum Doris K. Kildale; L. B. Kildale 1930-5-11 9536 Humboldt [Wire Grass] Wiregrass Prairie - The Bald Hills 792 Comment
  HSC104344  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 6 Humboldt Kneeland 854 Comment
  HSC16768  Eschscholzia californica William J. Ferlatte 1963-4-28 24 Humboldt Near 12th and B St., Arcata Comment
  UC1196289  Eschscholzia californica Joseph P. Tracy 1933-8-6 12934 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  HSC16767  Eschscholzia californica D. E. Anderson 1962-7-14 2263 Humboldt Comment
  HSC98911  Eschscholzia californica Cara Witte 2007-7-9 465 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  RSA93311  Eucephalus tomentellus R. S. Woglum 1938-8-28 1974 Humboldt Patrick Creek Comment
  UC165814  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1911-6-4 3232 Humboldt along Little R. 5 mi. from coast Little R.; Northern Coast Region, Little R. 121 Comment
  HSC36229  Euphorbia helioscopia John Rehling 1975-5-5 57 Humboldt HSU campus 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
  UC54897  Euphorbia spathulata Chesnut and Drew 1888-7-23 Humboldt Hyampon Comment
  HSC76339  Eurybia radulina Teresa Prendusi 1981-7-21 277 Humboldt Near Whiteys Peak 1646 Comment
  HSC17559  Fallopia sachalinensis H. E. Parks, S. T. Parks Jul 1952 24448 Humboldt South of the Elk River Bridge on Hwy 10 Comment
  UCD98910  Fallopia sachalinensis H. E. Parks; S. T. Parks 1941-8-1 s.n. Humboldt Along highway and Orick 50 miles south. Mouth of Elk River, Humboldt Bay, near sea level. Comment
  HSC70397  Festuca californica M. A. Baker 1980-6-7 1805 Humboldt Near Brush Mtn. 1128 Comment
  HSC99867  Festuca californica Thomas W. Nelson, Jane P. Nelson 1976-7-1 2892 Humboldt Along ridge N of Bear Creek 1463 Comment
  CAS-BOT-BC278422  Festuca idahoensis Joseph P. Tracy 1930-6-8 8729 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  HSC70661  Festuca occidentalis Gail Newton 1980-7-14 1544 Humboldt Near Deadman Ridge 1097 Comment
  UC187114  Festuca occidentalis Joseph P. Tracy 1908-6 2705 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC33723  Festuca rubra Dryden 1975-5-24 201 Humboldt Samoa Dunes, off Samoa Blvd. across from boat landing. Comment
  HSC65121  Festuca rubra J. P. Smith 1973-5-26 6880 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UCD66392  Festuca rubra Joseph P. Tracy 1938-7-4 15986 Humboldt Valley of South Yager Creek. 762 Comment
  POM126172  Festuca subuliflora Joseph P. Tracy 1900-5-22 801 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC38427  Festuca subuliflora J. P. Tracy May 1901 1184 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC21494  Foeniculum vulgare H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  HSC100627  Fragaria chiloensis Carl C. Marshall Apr 1886 181 Humboldt Vicinity of Humboldt Bay. Comment
  HSC90467  Fragaria chiloensis Jean Hanson 1980-3-8 30 Humboldt Indian (Gunther) Island, in Humboldt Bay. W end of island, 200 ft. from SW shore Comment
  CAS-BOT-BC457924  Fragaria vesca subsp. californica Doris K. Kildale 1927-4-17 3100 Humboldt Briceland Bridge, 1/2 mi. west of Garberville. 114 Comment
  HSC31219  Frangula californica D. E. Anderson 1972-6-20 5730 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  SBBG26928  Frangula californica subsp. californica C. B. Wolf 1934-6-30 5842 Humboldt back of Shelter Cove 60 Comment
  CAS-BOT-BC59969  Frangula purshiana Volney Rattan 1882-6-1 s.n. Humboldt Mad River. Comment
  CAS-BOT-BC59999  Frangula purshiana C. B. Wolf 1931-8-30 2373 Humboldt E. side of Eureka on P. St., one block n. of Henderson St. 30 Comment
  HSC49623  Frangula purshiana R. York 1979-5-15 290 Humboldt Along trail to College Cove 1.0 mi N of Trinidad Comment
  HSC18422  Frangula purshiana subsp. purshiana R. T. Haase 1965-4-26 11 Humboldt Comment
  RSA430762  Fraxinus latifolia Lyman Benson 1928-7-10 393 Humboldt Weott Ranger Station. Mtn. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  UC562731  Fraxinus latifolia Joseph P. Tracy 1928-4-22 8414 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC15550  Fritillaria affinis Greg Bos 1965-5-15 275 Humboldt Berry Summit near Hwy. 299 793 Comment
  HSC34910  Fritillaria affinis Thomas W. Nelson, James Nelson 1975-5-24 1841 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SEINET255379  Fritillaria lanceolata Joseph P. Tracy 1913-6-20 4228 Humboldt Lower foothills of Buck Mountain, on its NW slope. 762 Comment
  HSC15530  Fritillaria purdyi Elrid H. Spinas 1948-5-22 Humboldt Horse Mtn. Comment
  POM148009  Galium aparine J. B. Feudge 1923-7-29 727 Humboldt Rohnerville. 15 Comment
  HSC71791  Galium bolanderi Gail Newton 1980-6-16 179 Humboldt Near Monks Camp. 1097 Comment
  RSA47106  Galium californicum Doris K. Kildale 1925-5-23 585 Humboldt Eureka. Comment
  UC198660  Galium divaricatum Joseph P. Tracy 1916-6-19 4730 Humboldt Alder Point Northern Coast Ranges 152 Comment
  JEPS6494  Galium parisiense Joseph P. Tracy 1937-7-11 15421 Humboldt Garberville 152 Comment
  UC602520  Galium porrigens Joseph P. Tracy 1926-4-11 7406 A Humboldt Bridgeville 198 Comment
  HSC39794  Galium trifidum Peter Sorensen 1976-8-8 Humboldt King Salmon 0 Comment
  UC602542  Galium trifidum Joseph P. Tracy 1927-7-17 8273 Humboldt lower w foothills of Chaparral Mountain; North Coast Ranges, Three Cabins 457 Comment
  HSC34703  Galium triflorum Thomas W. Nelson 1974-7-20 1701 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA41964  Galium triflorum Ella Dales Cantelow 1936-5-17 1407 Humboldt 3 miles S of Orick Comment
  UC169032  Galium triflorum Joseph P. Tracy 1908-6 2862 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  RSA256577  Galium triflorum J. O. Sawyer 1970-6-24 2270 Humboldt S of Mill Creek Gap. F.S. Road 10N02. 1433 Comment
  JEPS20474  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  JEPS20484  Gamochaeta ustulata Joseph P. Tracy 1936-5-30 14834 Humboldt near Samoa; Northern Coast Ranges, Humboldt Bay 6 Comment
  CAS-BOT-BC188536  Garrya elliptica J. P. Tracy 1901-4-14 1030 Humboldt Sand Hills of Ocean Beach at Samoa, opposite Eureka Comment
  HSC40406  Garrya elliptica Linda M. Barker 1976-3-22 1339 Humboldt 3 mi. W of Arcata Comment
  HSC89422  Garrya elliptica P. A. Daly 1984-5-13 18 Humboldt Along trail at Trinidad Head 61 Comment
  UCR178955  Garrya elliptica R. G. Swinney 1968-4-13 245 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  HSC8392  Garrya fremontii C. B. Wolf 1930-10-24 1762 Humboldt Along Klamath River 1.0mi above mouth of Slate Creek 244 Comment
  CAS-BOT-BC182147  Garrya fremontii L. B. Kildale 1930-8-3 10336 Humboldt Chaparall Mt. near Bug Creek 914 Comment
  CDA38572  Garrya fremontii T. C. Fuller, T. Gallion 1959-7-23 2833 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  HSC53968  Gaultheria ovatifolia Griswold, Butler 1979-7-11 7025 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  CAS-BOT-BC58911  Gaultheria shallon L. R. Abrams 1916-7-11 6010 Humboldt Mouth of Grizzly Creek on Van Duzor River Comment
  CAS-BOT-BC58915  Gaultheria shallon Doris K. Kildale 1927-9-9 3958 a Humboldt Big Lagoon Comment
  LA41415  Gaultheria shallon C. B. Wolf; 1930-10-30 1787 Humboldt old Coast Road, 4 mi. S of Thorns 304 Comment
  POM318846  Gaultheria shallon Patricia Wilder 1968-8-22 4422 Humboldt Coastal rain forest 7 miles S of Ferndale on Mattole Road, N of Cape Mendocino and Capetown, Mt. Range: Bear River Ridge; Drainage Area: Oil Creek to Pacific. 549 Comment
  RSA18144  Gaultheria shallon C. B. Wolf 1927-8-22 804 Humboldt 1 mile south of Orick. Comment
  SBBG5540  Gaultheria shallon M. J. Cody 1938-7-14 Humboldt Trinidad Head Comment
  SBBG59965  Gaultheria shallon R. Hartwell 1938-8-3 105 Humboldt Bull Crk, Redwood Flat, Eel River Comment
  UC1196970  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9070 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC14651  Genista monspessulana R. T. Forester 1963-4-23 12 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC562301  Gentiana affinis var. ovata Joseph P. Tracy 1930-7-27 9110 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  RSA256968  Gentiana oregana Gary D. Wallace 1975-8-22 1487 Humboldt Northwest of Trinidad, on level area back from bluff edge Megwil Point, Elk Head. Comment
  HSC75286  Gentiana plurisetosa J. O. Sawyer, D. A. Thornburgh 1980-9-9 4082 Humboldt Mill Creek Lake and surrounding meadows Comment
  UC1197401  Geranium carolinianum Joseph P. Tracy 1926-5-2 7421 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC165804  Geranium carolinianum J. P. Tracy 1901-6-23 1186 Humboldt immediate vicinity of Eureka 0 Comment
  HSC32885  Gilia capitata Thomas W. Nelson, James Nelson 1973-5-28 937 Humboldt McKeown Ranch N of Dinsmore Comment
  POM127015  Gilia capitata P. E. Goddard 1907-6-5 116 Humboldt Van Duzen Comment
  JEPS69518  Gilia capitata subsp. capitata Joseph P. Tracy 1935-6-23 13995 Humboldt French Camp Ridge 1066 Comment
  POM208997  Gilia capitata subsp. pacifica Lincoln Constance 1934-5-23 621 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park 366 Comment
  SBBG5887  Gilia millefoliata H. and M. Dearing 1939-5-25 3432 Humboldt near Samoa Comment
  CAS-BOT-BC123798  Gilia millefoliata var. maritima Harley Pierce Chandler 1901-5-1 1135 Humboldt North Coast Ranges, Humboldt Bay 3 Comment
  JEPS79894  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  UC1197913  Gilia tricolor subsp. diffusa Joseph P. Tracy 1914-5-14 4465 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UC1602182  Githopsis specularioides Harley P. Chandler Jun 1901 1345 Humboldt Hupa Reservation North Coast Ranges 152 Comment
  CAS-BOT-BC218426  Glehnia littoralis subsp. leiocarpa J. Clausen 1935-6-16 3386 Humboldt Mouth of Little River Comment
  UCR196165  Glyceria declinata R. F. Thorne, Percy C. Everett 1965-8-9 35331 Humboldt Northwestern; Outer North Coastal region, Clam Beach County Park, along highway 3 Comment
  UC212892  Glyceria elata Joseph P. Tracy 1919-9-25 5297 Humboldt Trinity Summit; Northern Coast Ranges 1889 Comment
  POM126119  Glyceria fluitans Joseph P. Tracy 1924-8-3 6749 Humboldt Stone Lagoon Comment
  RSA152380  Glyceria occidentalis Joseph P. Tracy 1939-5-14 16286 Humboldt Dinsmore's along Van Duzen River, opposite Buck Mountain 762 Comment
  HSC63144  Glyceria striata M. A. Baker 1979-6-29 966 Humboldt Comment
  HSC70848  Glyceria striata M. A. Baker 1980-6-7 1825 Humboldt Near Ammon Creek. 732 Comment
  HSC99053  Glyceria striata Cara Witte 2008-7-25 931 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1.5 mile north of intersection with Forest Service Road 5N39. 1473 Comment
  JEPS20478  Gnaphalium palustre Joseph P. Tracy 1932-7-13 10513 Humboldt open places at Corral Prairie (in low wet ground); Trinity Summit, Corral Prairie 1584 Comment
  HSC98011  Gnaphalium palustre Cara Witte 2007-8-9 632 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  SFV18597  Gnaphalium palustre T. W. Nelson, J. P. Nelson 1987-7-4 8625A Humboldt South of Lundbarhills area. Along logging roads where vernally wet. 61 Comment
  POM247117  Gnaphalium ramosissimum Joseph P. Tracy 1936-8-24 15169 Humboldt Fickle Hill, 6 miles SE of Arcata. 610 Comment
  UCR122357  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 2001-7-8 7013 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  CAS-BOT-BC304738  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1936-7-3 3781 Humboldt Eureka Comment
  CAS-BOT-BC304761  Grindelia hirsutula Carl B. Wolf 1927-8-29 1214 Humboldt Devil's Gate, south of Cape Mendocino Comment
  JEPS41875  Grindelia hirsutula W. L. Jepson 1902-8-4 2145 Humboldt seashore Capetown to Petrolia 3 Comment
  SBBG62632  Grindelia hirsutula H. E. Parks -Aug-1941 24190 Humboldt Big Lagoon Comment
  UC665533  Grindelia hirsutula H. E. Parks Aug 1941 24190 Humboldt Big Lagoon Comment
  RSA640949  Grindelia stricta var. stricta R. F. Thorne, Percy C. Everett 1965-8-8 35278 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  UC201390  Guillenia lasiophylla Joseph P. Tracy 1918-5-1 4907 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC100391  Gymnogramma triangularis Carl C. Marshall Apr 1886 48 Humboldt Dry hills. Comment
  JEPS67940  Hackelia bella H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout; South Fork Mountain Comment
  UC582618  Hackelia californica Joseph P. Tracy 1937-7-25 15548 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  SEINET11678982  Hainardia cylindrica J. P. Tracy 1938-1 16071 Humboldt mouth of Eel River 3 Comment
  HSC58333  Hastingsia alba Overton, Butler 1979-8-2 12636 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC303042  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1463 Comment
  HSC91596  Hedera helix E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near old road in dune area Comment
  UC53952  Helenium bigelovii J. P. Tracy 1901-5-1 1204 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  HSC5764  Helenium bigelovii J. Wendell Howe 1934-6-24 1278 Humboldt Bald Hills - Mad Woods Comment
  CAS-BOT-BC306866  Helenium bolanderi Doris K. Kildale 1929-7-10 8398 Humboldt Big Lagoon Comment
  RSA695692  Helenium puberulum J. R. Bruff 1937-8-17 943 Humboldt Richardson Grove. Comment
  HSC38797  Hemitomes congestum R. York 1976-7-15 1 Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC310073  Hemizonella minima R. K. Gierisch; D. H. Esplin 1969-7-1 3535 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  HSC102043  Hemizonella minima M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 946 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  JEPS12643  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1928-9-2 8494 Humboldt Dobbyn Creek Northern Coast Ranges 152 Comment
  UC1199372  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1934-7-9 13343 Humboldt Dobbyn Creek 152 Comment
  JEPS82128  Hemizonia congesta subsp. tracyi Rimo Bacigalupi 1959-7-7 7249 Humboldt immediately behind headland of Cape Mendocino (steep grade of coast road, just s of road summit at this point) 30 Comment
  UC495621  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1932-8-21 10364 Humboldt Chaparral Mt., Three Cabins 457 Comment
  POM193009  Hemizonia tracyi H. E. Parks 1930-5-25 0880 Humboldt Near Bridgeville. Comment
  CHSC1956  Heracleum lanatum A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  CHSC31319  Heracleum lanatum Mark Stopher 1980-6-4 89 Humboldt Occasional in dike off upland habitat along Elk River near Rte 101 Bridge. 1 Comment
  UC180240  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  HSC60360  Heracleum maximum Clark L. Miller 1979-5-13 1120 Humboldt N of Trinidad along Patricks Point Dr. Comment
  HSC91938  Heracleum maximum E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, Palmer's Point Comment
  HSC78088  Hesperevax sparsiflora var. brevifolia L. P. Janeway, Amy Eisenberg 1984-4-25 747 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven roads, NE of the willow patch. 3 Comment
  HSC74733  Heterocodon rariflorum Gail Newton 1981-7-24 2318 Humboldt Near Chaparral Mtn. 1433 Comment
  SEINET10460607  Heterocodon rariflorum Willis L. Jepson Jepson 16394 Humboldt GARBERVILLE Comment
  CAS-BOT-BC143656  Heteromeles arbutifolia Doris K. Kildale 1926-6-13 2163 Humboldt Briceland Bridge, 1/2 mile west of Garberville 114 Comment
  UC480921  Heterotheca oregona var. compacta Harley P. Chandler 1901-6-1 1430 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  CAS-BOT-BC311056  Heterotheca oregona var. oregona A. A. Heller 1924-7-20 13866 Humboldt Along the Eel River at Phillipsville Comment
  JEPS2471  Heterotheca oregona var. rudis Milo S. Baker 1923-7-19 85 Humboldt dry bed of Van Dusen North Coast, Van Dusen Comment
  HSC74179  Heuchera merriamii M. A. Baker 1980-7-23 3176 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC420724  Heuchera micrantha var. diversifolia L. R. Abrams 1918-6-16 7150 Humboldt Willow Creek Comment
  CAS-BOT-BC423448  Heuchera micrantha var. macropetala Freed Hoffman 1950-7-11 4009 Humboldt Northeastern Humboldt county. On serpentine, 16.1 mi. above and north of Klamath River Road, along road to Cedar camp. 914 Comment
  HSC58353  Hieracium albiflorum Overton, Butler 1979-8-2 12691 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS36663  Hieracium albiflorum W. L. Jepson 1932-7-26 16408 Humboldt Bull Creek 106 Comment
  CAS-BOT-BC312389  Hieracium albiflorum Doris K. Kildale 1925-7-5 1022 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  POM289677  Hieracium albiflorum Lyman Benson 1928-7-12 485 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  UC34535  Hieracium albiflorum Chestnut and Drew 1888-7-12 Humboldt Jarnigan's Comment
  HSC56365  Hieracium greenei Griswold, Butler 1979-7-10 6205 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UC165197  Hieracium nudicaule Joseph P. Tracy 1908-6 2749 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  UC34531  Hieracium nudicaule Chesnut and Drew 1888-7-21 Humboldt South Fork <???> Comment
  UC165198  Hieracium scouleri Joseph P. Tracy 1908-7-1 2891 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  SDSU1120  Hierochloe occidentalis Wayne A. Bemis, R. Becking 1964-4-17 WAB,# 256 Humboldt North Coast redwood forest Freshwater Forest, Freshwater 143 Comment
  HSC36309  Hippuris vulgaris David Sohrakoff 1972-11-12 1 Humboldt Clam Beach ponds Comment
  RSA0016046  Hippuris vulgaris L. R. Abrams, R. C. Bacigalupi 1922-6-25 8266 Humboldt Big Lagoon, south of Orick. Comment
  HSC26537  Holcus lanatus J. P. Smith 1971-9-9 5040 Humboldt Mad River above the Fish Hatchery. Comment
  HSC79451  Holcus lanatus Kenneth Clark 1980-6-14 673 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  SEINET200832 Image available Holcus lanatus J. P. Tracy 1901-7-24 1218 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC58138  Holodiscus discolor Gilbert Muth 1979-8-1 12156 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  RSA183590  Holodiscus discolor D. E. Anderson 1963-9-1 2806 Humboldt Near Kneeland. 732 Comment
  RSA20812  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt N Coast Range, Wildcat ridge, 6.3 miles S of Ferndale. 305 Comment
  UC1103486  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1943-7-18 17439 Humboldt Big Lagoon 6 Comment
  UC926329  Hordeum brachyantherum subsp. brachyantherum A. S. Hitchcock 1915-7-13 1512 Humboldt Eureka Comment
  HSC45256  Hordeum vulgare M. Alcasas 1978-5-27 109 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  UC902136  Horkelia californica Joseph P. Tracy 1949-7-7 18332 Humboldt Table Bluff Ridge 91 Comment
  JEPS44517  Horkelia sericata Harley P. Chandler 1901-6-1 1543 Humboldt between Sommes Bar Jims Ranch; North Coast Ranges, Klamath River 426 Comment
  RSA259582  Horkelia tridentata subsp. flavescens D. E. Anderson 1972-6-20 s.n. Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  CAS-BOT-BC537898  Horkelia tridentata var. flavescens Alice Eastwood; John Thomas Howell 1937-6-23 4806 Humboldt Little Van Duzen River Comment
  HSC44356  Hosackia crassifolia Brad Klipfel 1974-7-23 464 Humboldt Horse Mtn. Comment
  SEINET957086  Hosackia rosea A. M. Ottley 1914-1 4599 Humboldt Same locality as 4576. Bald Mountian between high prairie and snow camp. 1219 Comment
  HSC39451  Hydrocotyle ranunculoides Linda M. Barker 1976-11-6 1704 Humboldt 3 mi W of Arcata Comment
  CDA20057  Hydrocotyle ranunculoides R. Spadoni, Green 2002-10-9 PDR P 070866 -B Humboldt Pacific Lumber Co, Scotia. 0 Comment
  HSC21514  Hydrocotyle ranunculoides Rollin Sparrowe 1961-12-8 1 Humboldt In slough S of road Comment
  HSC95387  Hydrocotyle ranunculoides Andrea Pickart 2002-7-19 186 Humboldt Arcata Marsh in Log Pond 10 Comment
  POM258591  Hydrophyllum occidentale Lincoln Constance, A. A. Beetle, Joseph P. Tracy 1940-5-17 2618 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  UC1239761  Hydrophyllum tenuipes Joseph P. Tracy 1933-6-11 12558 Humboldt Holmes Flat 60 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
  UC1137469  Hypericum perforatum Hubert Person 1941-5-24 25323 Humboldt just n. Garberville; Briceland Quad., CA Forest & Range Expt. Station 152 Comment
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Sep 12 2009
  UC1198413  Hypericum perforatum Joseph P. Tracy 1933-6-25 12628 Humboldt along Eel R. 2 to 5 mi. e. of S. Fork (Camp Grant); Eel R., Camp Grant 45 Comment
  UC668259  Hypericum perforatum Joseph P. Tracy 1937-4-3 15244 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UCSB23845  Hypericum perforatum Keefe, Joseph 1967-7-8 Humboldt bank of Eel River; Miranda Turnoff; 12.4 miles north of Garberville on U.S. Highway 101 170 Comment
  HSC36441  Hypericum perforatum John Rehling 1974-7-12 10 Humboldt Bald Hills Rd. 23.5 mi. from Hwy. 101 Comment
  SEINET10755374  Hypericum perforatum J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13015 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  RSA170208  Hypochaeris glabra Joseph P. Tracy 1948-5-31 18020 Humboldt Dobbyn Creek; William Perry place. 152 Comment
  HSC40958  Hypochaeris radicata Linda M. Barker 1976-9-3 1692 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CAS-BOT-BC206850  Iliamna latibracteata Don Hagar 1957-6-20 L 10 Humboldt Cedar Creek Divide, 5.5 miles east of Willow Creek 1066 Comment
  RSA20726  Iliamna latibracteata Carl B. Wolf 1937-9-11 9322 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  POM290986  Iris douglasiana Lyman Benson 1929-6-18 1734 Humboldt North of Arcata Comment
  RSA137356  Iris douglasiana Lee W. Lenz, E. K. Balls 1956-6-12 21666 Humboldt Between Willow Creek and Blue Lake, U.S. Highway 299 366 Comment
  SEINET12049821  Iris douglasiana F. H. Utech 1986-1 86 -395 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  SEINET3876004  Iris purdyi Rimo C. Bacigalupi, William Constance; S. M. Tracy; R. Moran; R. L. Rodriguez; S. Carlquist 1951-6-14 3414 Humboldt Under forest in meadow about Snow Camp. Ridge between Mad River and Redwood Creek, Bald Mountain.; 0 1433 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
  HSC48416  Iris tenax subsp. klamathensis J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9925 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  HSC65228  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 441 Humboldt 6.05 mi. N of Hwy. 96 on Ishi Pishi Rd., Orleans Comment
  UCR45387  Iris tenax subsp. klamathensis J. Pageau, T. Jimerson 1979-5-9 450 A Humboldt Orleans, Six Rivers National Forest In old clear cut o Foret Road 12N20, 1.5 mi west of its junction w/ F.R. 15N01 (G.O. Road). 793 Comment
  RSA152291  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp. 1402 Comment
  HSC7449  Isolepis cernua D. E. Anderson 1961-9-2 1763 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC7450  Isolepis cernua J. P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  HSC13941  Ixia maculata R. van Weemen van Noord 1966-4-16 19 Humboldt 100 yds. S of N end of Samoa Drag St. 9 Comment
  UC1173657  Jaumea carnosa Joseph P. Tracy 1939-8-6 16399 Humboldt Big Lagoon 6 Comment
  SEINET10474757  Jaumea carnosa Mary Susan Taylor 1990-8-22 Taylor 6088 Humboldt Cypress Grove Area, Samoa Peninsula, along strand, Eureka. Comment
  RSA168844  Juncus articulatus Joseph P. Tracy 1938-8-14 16114 Humboldt Hillside west of mouth of South Fork. Trinity River Valley , near the South Fork 183 Comment
  CHSC31324  Juncus balticus subsp. ater Mark Stopher 1980-6-4 92 Humboldt Near Hwy 101 bridge over Elk River, s of Eureka. 1 Comment
  RSA246799  Juncus balticus subsp. ater Robert F. Thorne, Percy C. Everett 1965-8-9 35290 Humboldt Big Lagoon. 3 Comment
  UC184125  Juncus balticus subsp. ater Joseph P. Tracy 1901-6-23 1190 1/2 Humboldt Eureka Northern Coast Region 0 Comment
  UC421841  Juncus breweri J. B. Davy 1899-6-30 6182 Humboldt Ferndale Comment
  RSA89765  Juncus breweri Phillip A. Munz 1954-7-25 19877 Humboldt Near dunes at Humboldt Lighthouse south of Samoa. Comment
  UC14897  Juncus bufonius J. P. Tracy 1900-5-27 805 Humboldt immediate vicinity Eureka 0 Comment
  SEINET3877733  Juncus bufonius J. E. Lankila 1962-4-14 6 Humboldt West bank of Eel River across from Shively about 1/4 mile north of Bear Creek.; 0 Comment
  UCD141425  Juncus covillei Linda M. Barker 1976-6-22 1623 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC98023  Juncus covillei Cara Witte 2007-7-12 517 Humboldt Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1339 Comment
  UC1103048  Juncus covillei var. obtusatus Joseph P. Tracy 1918-7-5 5000 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  BLMAR316  Juncus effusus subsp. pacificus Jennifer Anthony-Wheeler 2002-8-6 316 Humboldt King range, grwong at mattole beach behind dune 6 Comment
  HSC90769  Juncus ensifolius Gail Newton 1982-6-10 3597 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC97214  Juncus ensifolius M. Mesler 2007-7-15 781 Humboldt Near Grouse Mtn., 0.9 mi. S of NF 1 on FS Rd. 5N04 1582 Comment
  UC1152095  Juncus ensifolius Joseph P. Tracy 1937-7-25 15563 Humboldt 6 mi ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC249812  Juncus falcatus var. falcatus Joseph P. Tracy 1924-7-13 6723 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CHSC102933  Juncus laccatus Peter F. Zika 2007-7-30 23330 Humboldt North Coast, NCo. Above E side of Route 101, at high point between Stone and Big Lagoons. 80 Comment
  UC419021  Juncus phaeocephalus H. E. Parks and J. P. Tracy 1924-8-3 Humboldt Big Lagoon Comment
  SDSU11823  Juncus phaeocephalus D. F. Howe 1961-8-1 3111 Humboldt 9 miles noth of Arcata on #101 Comment
  CAS-BOT-BC235876  Keckiella corymbosa L. B. Kildale 1930-8-3 10357 Humboldt Chaparral Mountain at Bug Creek 914 Comment
  CAS-BOT-BC235886  Keckiella corymbosa Doris K. Kildale 1927-8-7 3862 Humboldt Kneeland Prairie 762 Comment
  JEPS11137  Keckiella corymbosa W. L. Jepson 1936-8-8 17864 Humboldt Hartsook; South Fork Eel River Comment
  RSA46967  Keckiella corymbosa Carl B. Wolf 1927-8-30 1237 Humboldt 2 miles S of Petrolia on the Matole River near point where the road crosses the river. Comment
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Mar 27 2012
  RSA79855  Keckiella corymbosa F. W. Peirson 1926-7-12 7025 Humboldt Klamath River near Weitchpec. Comment
  UC1222464  Keckiella corymbosa Joseph P. Tracy 1934-8-26 13602 Humboldt Blue Slide Northern Coast Ranges (on Van Duzen River) 91 Comment
  UC1222789  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19315 Humboldt opposite mouth of Salmon River (at Ishi-Pishi Falls, w side of Klamath River); Klamath River Comment
  UC146235  Keckiella corymbosa Joseph P. Tracy 1908-7-31 2935 Humboldt Bridgeville Northern Coast Ranges (rocks along Van Duzen River) 152 Comment
  UC41735  Keckiella corymbosa Chesnut and Drew 1888-7-10 Humboldt Jarnigans's Comment
  RSA0009768  Keckiella lemmonii Marcus E. Jones 1931-7-16 28828 Humboldt Junction, East of Arcata. Comment
  UC1103697  Koeleria macrantha Joseph P. Tracy 1917-6-17 4819 Humboldt near Eureka (Bluff at Ocean View Cemetary); Northern Coast RAnges 0 Comment
  JEPS13532  Kopsiopsis strobilacea Mrs. Virginia P. Fox July 1919 Humboldt Bald Mountain Comment
  HSC58117  Kyhosia bolanderi G. L. Clifton, Griswold 1979-8-1 12079 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  SEINET202279 Image available Lactuca ludoviciana Joseph P. Tracy 1950-9-22 19368 Humboldt Klamath River near Slate Creek. Below Orleans 8 miles 122 Comment
  UC1051584  Lactuca saligna Joseph P. Tracy 1943-11-28 17462 Humboldt Alton, Fortuna 15 Comment
  HSC34652  Lamium purpureum A. M. Montalvo 1975-4-10 205 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 Comment
  HSC58231  Lapsana communis Walter Overton 1979-8-1 12379 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  CAS-BOT-BC337990  Lasthenia californica Carl B. Wolf 1937-6-14 8812 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  UC1199124  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-19 10249 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC1222971  Lasthenia californica subsp. californica Joseph P. Tracy 1947-6-28 17752 Humboldt Larrabee Valley 731 Comment
  JEPS82141  Lathyrus biflorus Thomas W. Nelson and Tom Jimerson 1980-8-4 6233 Humboldt ne slope Red Mountain; North Coast Ranges, Blocksburg Quad. 1371 Comment
  UC1199082  Lathyrus jepsonii var. californicus Joseph P. Tracy 1936-6-17 14964 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  CDA18239  Lathyrus littoralis G. D. Barbe, T. C. Fuller 1974-6-19 1877 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 4 Comment
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Sep 18 2009
  HSC14740  Lathyrus littoralis J. P. Tracy 1906-5-13 2451 Humboldt Humboldt Bay, Ocean Beach Comment
  UC495712  Lathyrus littoralis Joseph P. Tracy 1929-7-4 8641 Humboldt near Samoa; Northern Coast Ranges 6 Comment
  HSC101985  Lathyrus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 883 Humboldt Patterson Meadows 1566 Comment
  RSA60500  Lathyrus odoratus John H. Thomas 1949-6-14 909 Humboldt betw Le Perron Flat and whiteys Peak along the trail. E of town of Orleans Comment
  HSC73128  Lathyrus polyphyllus M. A. Baker 1980-5-18 1283 Humboldt Near Black Mtn. 1006 Comment
  UC1013059  Lathyrus vestitus C. L. Hitchcock 1948-6-7 19085 Humboldt ca 15 mi e Blue Lake (along Highway 299) Comment
  HSC104093  Layia carnosa Kyle Brown Apr 2015 33 Humboldt Ma-le'l Dunes; ~.25 mi. NW of parking lot 3 Comment
  HSC5912  Layia carnosa L. H. Myers 1963-5-13 15 Humboldt Dunes W of Lanpheres Rd., Mad River Slough area. Comment
  UC1103516  Lemna minuscula Joseph P. Tracy 1919-9-14 5212 Humboldt opposite Willow Creek (Lack Pond on Trinity River); Northern Coast Ranges, Trinity River, Lack Pond 152 Comment
  RSA15571  Leontodon nudicaulis C. B. Wolf 1927-8-28 1188 -A Humboldt Eureka Bay, on the road to Arcata. Comment
  UC1116217  Lepidium strictum Joseph P. Tracy 1946-5-4 17433 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC96631  Leptosiphon nuttallii subsp. nuttallii Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-7-4 9284 Humboldt Along Bald Hills Rd. near French Camp, 1.5 mi. from Johnson Rd. and Elk Camp fire station Comment
  CAS-BOT-BC341824  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC5934  Lessingia nemaclada J. P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC94818  Leucanthemum vulgare R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-6-6 837 Humboldt Humboldt Redwoods S.P., Pole Line Prairie along Pole Line Road, 1 air mi. N of Mattole Rd., 6 mi. E of Hwy. 101 274 Comment
  HSC48613  Leucanthemum vulgare Mark Flippo 1978-5-18 63 Humboldt Arcata, US 101 Comment
  SEINET3072000 Image available Lewisia leeana Joseph P. Tracy 1935-7-24 14200 Humboldt Trinity summit. Near ranger station 1830 Comment
  UC1198373  Lewisia nevadensis Joseph P. Tracy 1938-6-13 15924 Humboldt at Cold Springs Grouse Mountain 1432 Comment
  CAS-BOT-BC444479  Lewisia triphylla Joseph P. Tracy 1932-7-10 10376 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  CAS-BOT-BC283516  Leymus X vancouverensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC272246  Leymus triticoides David D. Keck 1944-7-11 5496 Humboldt Cape Mendocino 3 Comment
  SD51274  Ligusticum apiifolium Darley F. Howe 1961-8-2 3614 Humboldt 24 miles east of Orick on Bald Mountain Road. 915 Comment
  HSC76407  Ligusticum californicum Teresa Prendusi 1981-7-24 456 Humboldt Near Whiteys Peak 1585 Comment
  HSC91937  Ligusticum californicum E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, edge of meadow at Palmer's Point Comment
  UC183567  Ligusticum californicum Joseph P. Tracy 1912-7-31 3951 Humboldt near summit Buck Mt.; Northern Coast Ranges, Buck Mt. 1524 Comment
  HSC76438  Lilium bolanderi Teresa Prendusi 1981-7-9 202 Humboldt Near Cedar Camp 1268 Comment
  CAS-BOT-BC508391  Lilium columbianum Doris K. Kildale 1927-6-26 3596 Humboldt Patrick's Point Comment
  CAS-BOT-BC508396  Lilium columbianum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Divide west of Willow Creek Comment
  CAS-BOT-BC508404  Lilium columbianum A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt A few miles north of Arcata, logging road near U.S. 101 Comment
  RSA259541  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2032 Humboldt Bald Hills Road just east of Redwood National Park Comment
  HSC49927  Lilium kelloggii Maralyn O'Meara 1974-7-17 548 Humboldt Along Kneeland rd. across from Kneeland Post Office Comment
  JEPS62049  Lilium kelloggii Milo S. Baker 1923-7-29 145 Humboldt near Lawrence Creek Comment
  CAS-BOT-BC130685  Lilium occidentale A. M. Vollmer; L. Beane 1953-7-1 118 Humboldt unspecified Comment
  UC1198243  Lilium occidentale Joseph P. Tracy 1924-9-21 6886 Humboldt Eureka; Northern Coast Ranges 0 Comment
  JEPS61999  Lilium pardalinum Mrs. M. H. Manning 1901-1 15 Humboldt near Hupa Comment
  JEPS62008  Lilium pardalinum Hilda Grinnell 1932-7-19 31 Humboldt near McKay Camp 1676 Comment
  UCSB698  Lilium pardalinum Phillips, Priscilla 1958-6-7 Humboldt On Highway 101, 14.1 mi. south of Prairie Creek Redwoods State Park (north of Trinidad) Comment
  HSC58211  Lilium pardalinum subsp. pardalinum Walter Overton 1979-8-1 12334 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC58247  Lilium pardalinum subsp. pardalinum G. L. Clifton, Griswold 1979-8-2 12426 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC99350  Lilium pardalinum subsp. pardalinum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 129 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC65214  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau, B. Marcot 1979-8-9 711 Humboldt 30 ft E of Rd. Timber Sale Unit 25 boundary, S of Tish Tang Creek 1341 Comment
  CAS-BOT-BC132964  Lilium rubescens Doris K. Kildale 1927-6-24 3538 Humboldt On top of ridge before taking down grade into Shelter Cove Comment
  UC1197414  Limnanthes douglasii Joseph P. Tracy 1927-6-5 8106 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC1537005  Limnanthes douglasii Gordon H. True Jr. 1936-5-11 462 Humboldt 12 mi w Miranda (e of Elk Ridge); Elk Ridge 457 Comment
  UC502960  Limnanthes douglasii subsp. douglasii Joseph P. Tracy 1928-5-20 8439 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC668277  Limnanthes douglasii subsp. douglasii Joseph P. Tracy 1933-5-20 12271 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC668278  Limnanthes douglasii subsp. douglasii Joseph P. Tracy 1993-5-20 12246 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
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Jun 28 2015
  UC1222731  Linanthus androsaceus Joseph P. Tracy 1950-6-15 18817 Humboldt 7 mi n Harris (at Huestis Rock, ne side of Mail Ridge); Mail Ridge, Huestis Rock Comment
  UC52532  Linanthus bicolor J. P. Tracy 1902-7-4 1763 Humboldt immediate vicinity Eureka 0 Comment
  UC179969  Linnaea borealis var. longiflora Joseph P. Tracy 1914-7-5 4571 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC43105  Linum grandiflorum Maralyn O'Meara 1974-5-14 358 Humboldt Along Hwy. 36 ca. 2.4 mi. E of Bridgeville. Comment
  CAS-BOT-BC111982  Lipocarpha occidentalis Joseph Prince Tracy 1931-9-7 9650 B Humboldt Sand bars in River bed, Trinity River Valley at Willow Creek. 152 Comment
  HSC59585  Listera cordata var. nephrophylla Rick Lundquist 1979-5-13 84 Humboldt 0.5 mi. down private rd. to campground at Korbel, 1 mi. E of Blue Lake 30 Comment
  JEPS37741  Lithocarpus densiflorus W. L. Jepson 1902-6 2138 Humboldt Bear River Range Comment
  JEPS38042  Lithocarpus densiflorus Lincoln Constance 1934-5-24 637 Humboldt forest bordering on e side Lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  JEPS46624  Lithocarpus densiflorus W. L. Jepson Aug 1902 Humboldt Briceland Comment
  RSA697655  Lithocarpus densiflorus var. densiflorus Unspecified 1936-09 s.n. Humboldt Richardson's Grove (State Park). Comment
  HSC20227  Lithophragma affine G. N. Bos 1965-5-15 266 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  UC154138  Lithophragma affine Mrs. M. H. Manning Apr. 1902 Humboldt near Hupa; near Hupa Comment
  HSC31443  Lithophragma campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5561 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC82106  Lithophragma campanulatum Thomas W. Nelson, Jane P. Nelson 1980-5-25 5259 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 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
  CAS-BOT-BC283405  Lolium multiflorum Carl B. Wolf 1927-8-29 1215 Humboldt Seacoast, Devil's Gate, S of Cape Mendocino Comment
  SEINET200608 Image available Lolium perenne J. P. Tracy 1923-8-25 6539 Humboldt Eureka 13 Comment
  HSC70992  Lomatium californicum Gail Newton 1980-7-15 1575 Humboldt Near Sims Mtn. 1311 Comment
  RSA167442  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1951-6-24 19537 Humboldt Near Ashfield Butte Comment
  UC314597  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1923-6-27 6380 Humboldt near the South Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  SBBG5200  Lomatium dissectum var. multifidum H. and M. Dearing 1933-5-16 1222 Humboldt Eel River, N of Garberville Comment
  UC1565807  Lomatium macrocarpum R. Spellenberg 1990-7-10 Humboldt 7.5 air mi. s.w. Salyer (on U.S.F.S. Rd. 6N08, on Friday Ridge 0.4 mi. n.e. of junction with U.S.F.S. Rd. 1, extreme e. edge county); Friday Ridge 1371 Comment
  HSC98775  Lomatium macrocarpum Cara Witte 2008-6-9 695 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  UC154251  Lomatium macrocarpum Joseph P. Tracy 1908-6 2835 Humboldt n.w. slope Buck Mt. 1219 Comment
  HSC96232  Lomatium nudicaule Kaylea Eickhoff, Cara M. Witte 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  UC314598  Lomatium nudicaule Joseph P. Tracy 1925-7-26 7208 Humboldt at mouth of S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  RSA273299  Lomatium tracyi B. Kelly 1977-7-16 537 Humboldt 1/4 mile in from Horse Mountain Road, 1/2 mile below turnoff to summit, near end of unused gravel road. Comment
  JEPS2711 Image available Lomatium utriculatum W. L. Jepson 1934-5-8 16716 Humboldt Redway South Fork Eel River; Redway, S fork of Eel River Comment
  UC642350  Lomatium utriculatum Joseph P. Tracy 1930-6-29 8814 Humboldt lower foothills of its n.w. slope Buck Mt. 762 Comment
  HSC41001  Lonicera conjugialis J. O. Sawyer 1975-10-17 2711 Humboldt S slopes of N Trinity Mtn. Comment
  UC1239548  Lonicera conjugialis Joseph P. Tracy 1932-7-12 10481 Humboldt head Brett Hole; Trinity Summit 1828 Comment
  CAS-BOT-BC240477  Lonicera hispidula Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  POM284224  Lonicera hispidula var. vacillans Lyman Benson 1929-7-19 1864 Humboldt Dyerville to Mat[t]ole River. Comment
  UC1125245  Lonicera hispidula var. vacillans H. L. Person 1932-7-23 N.w.S 16 Humboldt road e Korbel; Eureka Quadrangle Comment
  UC602569  Lonicera hispidula var. vacillans Joseph P. Tracy 1928-7-1 8479 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC95659  Lonicera hispidula var. vacillans Steven Lee 2004-4-25 22 Humboldt South Fork Rd., from Hwy. 299 to County Rd. 341, 1/8 mi. down river access trail at end of Rd. Comment
  CAS-BOT-BC241484  Lonicera involucrata var. ledebourii Doris K. Kildale 1925-9-26 1363 Humboldt Mouth of Mad River - coast Comment
  CAS-BOT-BC241495  Lonicera involucrata var. ledebourii D. E. Breedlove 1962-6-7 3047 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC37832  Lonicera involucrata var. ledebourii Thomas W. Nelson, James Nelson 1976-3-11 2264 Humboldt Beside Eel River just N of W terminus of Singley Rd. Comment
  HSC83836  Lonicera involucrata var. ledebourii F. R. Fosberg 1948-8-28 30053 Humboldt Dry Lagoon. Comment
  LA205886  Lonicera involucrata var. ledebourii Harlan Lewis; 1940-7-3 sn Humboldt Dry Lagoon State Park, edge of lagoon Comment
  SBBG7360  Lonicera involucrata var. ledebourii M. J. Cody 1938-7-18 Humboldt near Trinidad Comment
  SDSU2917  Lonicera involucrata var. ledebourii Harvey 1938-8-13 2278 Humboldt North of Arcata. Comment
  UC180196  Lonicera involucrata var. ledebourii Joseph P. Tracy 1914-7-12 4584 Humboldt near Hookton; Northern Coast Region, Humboldt Bay 0 Comment
  HSC98250  Lotus aboriginus D. E. Anderson 1963-9-29 2850 Humboldt Fish Lake. Comment
  UC1052840  Lotus crassifolius var. crassifolius W. L. Colwell 1955-6-7 24 Humboldt 3 mi w Weott (0.5 mi n of Grasshopper Mountain Lookout, Quad. 29-B-3) 914 Comment
  UC1046517  Lotus denticulatus R. Bacigalupi, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3405 Humboldt 4 mi w bridge crossing the Van Duzen River (along State Highway 36, Dinsmore); Dinsmore Comment
  SEINET12154204  Lotus micranthus J. P. Tracy 1936-1 14866 Humboldt Coast BLuffs nr Trinidad 61 Comment
  UC1223423  Lotus pinnatus Joseph P. Tracy 1937-7-19 15461 Humboldt Larrabee Valley 731 Comment
  HSC57120  Luina hypoleuca Overton, Butler 1979-7-25 9865 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  CAS-BOT-BC342558  Luina hypoleuca Carl B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 mi. above Orleans Comment
  UC503003  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-6-14 10161 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC96943  Lupinus albifrons var. collinus Ryoko Ito, Shauna McDonald 2007-6-11 6 Humboldt 14 mi. above 299, on FS Rd. NF1 1372 Comment
  CSUSB1636  Lupinus arboreus Susan Thompson 1967-7-23 Humboldt Trinidad, California 15 Comment
  OBI36383  Lupinus arboreus David J. Keil 1983-7-1 17285 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  SD39026  Lupinus arboreus Charlotte M. Hook 1931-7-14 2105 Humboldt Above Eureka, sand dunes & coastal canyon Comment
  UC169052  Lupinus arboreus Joseph P. Tracy 1912-2-25 3559 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  UC1197275  Lupinus bicolor Joseph P. Tracy 1939-4-18 16219 Humboldt Garberville 152 Comment
  SEINET10484916  Lupinus bicolor subsp. pipersmithii Charles Piper Smith 1948-5-10 Smith 48251 Humboldt Highway 101 - garberville, 2 miles north. Comment
  HSC79068  Lupinus breweri D. K. Imper 1984-5-17 Humboldt Across drainage E of Sims Mtn. 1220 Comment
  UC176599  Lupinus latifolius var. latifolius Joseph P. Tracy 1913-6-20 4240 Humboldt lower foothills on its nw slope Buck Mountain; Northern Coast Ranges, lower foothills Buck Mountain 762 Comment
  UC205470  Lupinus latifolius var. latifolius Joseph P. Tracy 1919-5-31 5174 Humboldt along Willow Creek ((Tributary of Trinity River) near its mouth); Northern Coast Ranges, Willow Creek (trib. of Trinity River) 152 Comment
  HSC95097  Lupinus littoralis Andrea Pickart 2002-7-3 151 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  UC1223254  Lupinus littoralis Joseph P. Tracy 1938-6-16 15940 Humboldt Brainards Point, along highway between Eureka and Arcata Comment
  UC170030  Lupinus nanus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3623 Humboldt hillsida at Alton; Northern Coast Region 30 Comment
  SD42562  Lupinus polyphyllus Carl B. Wolf 1937-8-11 9144 Humboldt 0.5 mile east of Alton. 21 Comment
  SEINET12165817  Lupinus propinquus J. T. Vale 1988-1 s.n. Humboldt nr Petrolia Comment
  HSC100523  Lupinus rivularis Carl C. Marshall May 1886 211 Humboldt Everywhere. Comment
  SBBG13914  Lupinus rivularis H. and M. Dearing 1933-5-17 2957 Humboldt N of Big Lagoon Comment
  RSA414417  Lupinus rivularis Bonnie C. Templeton 1964-6-11 10073 Humboldt Between Salyer and Arcata on Highway 299 Comment
  UC2978  Luzula comosa Harley P. Chandler June, 1901 1312 A Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 304 Comment
  HSC61636  Luzula comosa Ruby Van Deventer 1959-6-29 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  HSC70988  Luzula parviflora Gail Newton 1980-7-20 1649 Humboldt Near Bell Swamps. 1426 Comment
  UC184187  Luzula parviflora Joseph P. Tracy 1900-5-28 810 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  UCSB587  Luzula parviflora Parks, H.; Parks, S. 1952-06 Humboldt Bishop Pine Lodge; Trinidad Comment
  HSC906  Lycopodiella inundata D. E. Anderson 1961-9-13 1803 Humboldt Big Lagon Bog, Big Lagoon County Park Comment
  JEPS63277  Lycopus americanus Joseph P. Tracy 1924-8-31 6853 Humboldt Klamath R. at mouth of Bluff Creek; Klamath R. 91 Comment
  CAS-BOT-BC215685  Lycopus uniflorus Henry M. Pollard 1956-10-9 s.n. Humboldt Sand-bar near Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  HSC96481  Lycopus uniflorus Gordon Leppig 1997-8-3 640 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  UC486490  Lysichiton americanus H. E. and S. T. Parks 1930-9-14 781 Humboldt Big Lagoon Comment
  JEPS42815  Lysichiton americanus Lincoln Constance 1934-6-18 894 Humboldt near South Fork Rail Road Station and Post Office (border of North Dyerville Flat, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  RSA137264  Lysichiton americanus I. L. Wiggins 1957-6-19 14130 Humboldt East side of highway, Trinidad. Comment
  UC1733678  Lysichiton americanus Kay H. Beach, Frank Gould 1940-5-5 478 Humboldt near Fields Landing. Comment
  UCSB26679  Lysichiton americanus Neil Havlik 1968-8-21 63 Humboldt collected ath the S-end of the Big Lagoon N of Trinidad Big Lagoon and Trinidad 1 Comment
  JEPS45971  Lythrum hyssopifolia W. L. Jepson 1902-8-4 2146 Humboldt near Petrolia ( Expedition from Ukiah to the Hupa Indian Reservation) Comment
  UC562527  Lythrum hyssopifolia Joseph P. Tracy 1934-7-30 13511 Humboldt in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  UC562528  Lythrum hyssopifolia Joseph P. Tracy 1934-7-30 13512 Humboldt in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  HSC38486  Madia elegans D. E. Anderson, J. P. Smith 1971-6-18 - 1066 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  UC1223210  Madia elegans Joseph P. Tracy 1947-7-9 17827 Humboldt Horse Mountain 1066 Comment
  CAS-BOT-BC342807  Madia elegans Lincoln Constance; Reed C. Rollins 1942-5-11 2874 Humboldt California North Coast Ranges. Hoopa Valley 5 miles south of Hoopa 121 Comment
  UC89451  Madia elegans unknown Humboldt Jarnigans Comment
  UC129391  Madia exigua Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5466 Humboldt near Elk Prairie Comment
  RSA21082  Madia exigua C. B. Wolf 1937-6-19 8910 Humboldt Van Duzen River, 0.3 mi. above Bridgeville. 122 Comment
  HSC74211  Madia gracilis M. A. Baker 1980-7-15 2961 Humboldt Near Whiting Ridge. 1341 Comment
  OBI36372  Madia gracilis David J. Keil 1983-7-1 17268 Humboldt Ca. 13 mi W of jctn US 101 along Bull Crk Flats rd Comment
  UC176779  Madia gracilis Joseph P. Tracy 1908-6 2694 Humboldt opposite Buck Mountain; Valley of Van Duzen River 762 Comment
  RSA47161  Madia gracilis subsp. gracilis Doris K. Kildale 1927-7-1 3619 Humboldt Alton Hill Comment
  CAS-BOT-BC343595  Madia sativa Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC343592  Madia sativa J. Clausen 1932-9-19 692 Humboldt Weott Comment
  RSA89891  Mahonia nervosa E. K. Balls, P. C. Everett 1953-10-13 18655 Humboldt 17.4 mi. E of jct Hwys 101 and 299 above Blue Lake. 274 Comment
  HSC15589  Maianthemum dilatatum Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC15596  Maianthemum dilatatum W. R. Brigham 1962-5-19 6 Humboldt S of Big Lagoon. Comment
  CAS-BOT-BC508502  Maianthemum dilatatum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  CAS-BOT-BC508521  Maianthemum dilatatum L. R. Abrams; R. Bacigalupi 1922-6-25 8300 Humboldt Near northern county line Comment
  SEINET8489279  Maianthemum dilatatum H. P. Chandler 1905-1 s.n. Humboldt Eureka. Comment
  HSC44336  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1975-6-17 675 Humboldt Horse Mtn. Comment
  HSC57028  Maianthemum racemosum subsp. amplexicaule Overton, Butler 1979-7-24 9650 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  RSA309620  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1983-9-3 3932 Humboldt 3,2 mi W of Klamath River bridge W of Weitchpec, along road to Orick. Comment
  SEINET12047102  Maianthemum racemosum subsp. amplexicaule F. H. Utech 1972-1 72 -013 Humboldt Humboldt Redwoods State Park, Bull Creek Flats area 213 Comment
  SEINET12051383  Maianthemum racemosum subsp. amplexicaule F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -286 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC53946  Maianthemum stellatum Griswold, Butler 1979-7-11 6994 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC57027  Maianthemum stellatum Overton, Butler 1979-7-24 9648 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  SEINET3992479  Maianthemum stellatum Unknown 1932-7-12 10455 Humboldt Near Corral Prairie; Trinity Summit 1585 Comment
  UC204742  Malacothrix floccifera Joseph P. Tracy 1918-7-6 5049 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  UC582999  Malacothrix floccifera P. A. Munz 1936-8-9 14333 Humboldt 5 mi n line between Mendocino and Humboldt Counties (s of fork of Eel River) Comment
  HSC18694  Malus fusca L. J. Coombes 1964-5-16 30 Humboldt Camp Bowers, 3 mi. SE of Blue Lake 305 Comment
  JEPS45607  Malus fusca Milo S. Baker 1923-8-5 196 Humboldt near Orick; North Coast Comment
  UC1052474  Malus fusca H. E. Parks Apr 1933 4352 Humboldt Spruce Cove; Trinidad Comment
Read comments
Jun 17 2020
  CHSC29262  Marah oregana David M. Hutt 1964-6-28 1108 Humboldt Wailaki Recreation site of the Bureau of Land Management. First valley back from the ocean by rd running from Calif. Rt. 1 to Honeydew, and c. 2 mi S of junction with Shelter Cove Rd. Comment
  HSC49806  Marah oregana R. York 1979-4-13 224 Humboldt Just N of College Cove Comment
  HSC79362  Matricaria discoidea Kenneth Clark 1981-5-2 1360 Humboldt Point Delgada, Mario's Marina 15 Comment
  UC204870  Matricaria occidentalis Joseph P. Tracy 1918-6-16 4955 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC14985  Medicago polymorpha N. R. Waite 1965-5-19 38 Humboldt W edge of Humboldt State University campus. Comment
  HSC48058  Medicago polymorpha Thomas W. Nelson 1978-4-24 3890 Humboldt Eureka, along F St. between Orchard and Willow St. Comment
  UC1145133  Melica aristata Joseph P. Tracy 1937-7-25 15549 Humboldt 2 mi e Grove's Prairie (on ridge); Trinity Summit 1524 Comment
  RSA10133  Melica bulbosa Joseph P. Tracy 1932-7-12 10445 Humboldt Open ground at Corral Prairie, Trinity Summit, Klamath Mountains. 1524 Comment
  RSA152364  Melica californica Joseph P. Tracy 1938-6-9 15886 Humboldt Mail Ridge, northwest of Harris 2 miles. 915 Comment
  UC1103761  Melica fugax Joseph P. Tracy 1913-6-17 4193 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  BLMAR525  Melica harfordii Jennifer Wheeler 2009-6-23 525 Humboldt King range, On King Peak road Comment
  JEPS71244  Melica harfordii W. L. Jepson 1936-8-8 17860 Humboldt Richardson Grove; South Fork Eel River Comment
  UC249876  Melica harfordii Joseph P. Tracy 1923-5-30 6243 Humboldt Dyerville North Coast Ranges, Eel River (along Eel River from South Fork to Scotia) 60 Comment
  UC53675  Melica harfordii Jos. Burtt Davy 1899-6-19 5661 A Humboldt Hoopa Mt. Humboldt; Hoopa Mt. Comment
  UCD87536  Melica harfordii A. H. Murphy 1947-6-17 s.n. Humboldt 1 mile south of Blocksburg. Comment
  UCD88605  Melica subulata Harley P. Chandler 1901-5-1 1174 Humboldt North Coast Ranges, Humboldt Bay. 30 Comment
  UCD88684  Melica subulata H. S. Yates 1936-6-23 5878 Humboldt 4 miles NNE of Cathey's Peak. Comment
  SEINET10925519  Melica subulata Harley P. Chandler Chandler 1174 Humboldt 30 Comment
  UC277169  Melica torreyana Joseph P. Tracy 1921-4-24 5450 Humboldt Phillipsville Northern Coast Ranges, South Fork of Eel River (South Fork of Eel River) 91 Comment
  HSC46021  Melilotus albus Catherine Chin 1978-8-5 92 Humboldt 7th & A St., Arcata Comment
  UC1225834 Image available Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt 2 mi s Field's Landing (along edges of foothills); s of Field's Landing 6 Comment
  HSC14252  Mentha canadensis H. E. Parks, S. T. Parks 1930-9-14 728 Humboldt Big Lagoon Comment
  UC1191796  Mentha canadensis Malcolm A. Nobs, S. Galen Smith 1949-8-3 1186 Humboldt at southern outskirts of Eureka Comment
  CDA5714  Mentha pulegium D. G. Kelch 2007-7-25 7 .502 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  HSC36045  Mentha pulegium Thomas W. Nelson 1975-9-24 2200 Humboldt Beside Indianola Rd., ca. 1/2 mi. E of its junction with Hwy. 101 Comment
  JEPS80899  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1571 B Humboldt Prairie Creek area, Mile 125.00, US Hwy 101 Prairie Creek area; , Mile 125.00, US Hwy 101 Comment
  POM296727  Micropus californicus S. K. Harris, J. P. Tracy 1942-6-15 s.n. Humboldt Prairie, Harris Road, 1 mile east of Garberville 30 Comment
  SEINET7887162 Image available Micropus californicus Unknown 1942-1 s.n. Humboldt Harris Road, 1 mile east of Garberville 30 Comment
  HSC70398  Micropus californicus var. californicus M. A. Baker 1980-6-7 1838 Humboldt Near Ammon Creek 732 Comment
  HSC71162  Micropus californicus var. californicus Thomas W. Nelson, Jane P. Nelson 1977-5-30 3408 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  UC1239516  Microseris bigelovii Joseph P. Tracy 1927-6-8 8117 Humboldt Trinidad 3 Comment
  UC1223203  Microseris bigelovii Joseph P. Tracy 1938-5-31 18014 Humboldt near Alder Point (along road to Harris, 1 mi sw) Comment
  CHSC93621  Microseris borealis K. L. Chambers 1957-8-31 1225 Humboldt Lake Prairie, on road from Bald Mt. to Snow Camp, ca. 9 mi. S of Ranger Station. In bog, SE end of the lake. Comment
  RSA72856  Microseris leptosepala A. Kellogg, W. G. W. Harford 1868-09 567 Humboldt [Unspecified] Comment
  HSC32274  Microseris nutans D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5628 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  JEPS1744  Mimulus alsinoides Clyde Ritchie Bell 1951-4-21 1045 Humboldt 7 mi s Hoopa Comment
  UC582607  Mimulus alsinoides Joseph P. Tracy 1925-6-7 7062 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  UC1063400  Mimulus aurantiacus var. aurantiacus A. E. Wieslander 1931-5-22 217 Humboldt hills s Ferndale; Cape Fortuna Quadrangle Comment
  HSC20707  Mimulus dentatus D. E. Anderson 1965-9-5 4074 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC39160  Mimulus dentatus D. E. Anderson, J. P. Smith 1971-6-28 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC20708  Mimulus dentatus Jack Rockwell 1962-5-5 58 Humboldt W side Jacoby Creek 18 Comment
  HSC60081  Mimulus guttatus M. A. Baker 1978-5-6 472 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  HSC97610  Mimulus guttatus Cara Witte 2007-6-4 199 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC582700  Mimulus guttatus Joseph P. Tracy 1932-7-16 10612 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC22498  Mimulus guttatus G. Ghatala 1967-7-18 6 Humboldt Comment
  HSC22508  Mimulus guttatus W. B. Thompson 1967-7-20 17 Humboldt Along creek W of the access road to Clam Beach Co. Park 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
  JEPS27379  Mimulus inodorus H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout (s of USGS Signal Rock); South Fork Mountain Comment
  HSC56133  Mimulus moschatus G. L. Clifton, Griswold 1979-8-1 11951 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC56317  Mimulus moschatus Overton, Butler 1979-8-2 12656 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC75462  Mimulus moschatus J. O. Sawyer 1980-7-18 3611 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC98001  Mimulus moschatus Cara Witte 2007-7-20 558 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  UC582710  Mimulus nasutus Joseph P. Tracy 1933-5-20 12252 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  CDA30215  Mimulus pilosus M. K. Beyers, I. Shepardson 2009-9-13 238 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
  HSC72438  Mimulus pilosus J. P. Smith 1971-10-9 5010 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC82387  Mimulus primuloides var. primuloides Thomas W. Nelson 1979-7-11 5011 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  JEPS4667  Mimulus pulsiferae Harold E. Parks and Joseph P. Tracy 1934-6-27 11087 Humboldt Grouse Mt. 1432 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
  CHSC10143  Minuartia douglasii D. E. Anderson 1965-5-15 3695 Humboldt About 5 miles north of Hoopa on Bald Hills Road. Comment
  HSC73751  Minuartia douglasii M. A. Baker 1980-7-15 2945 Humboldt Near Whiting Ridge. 1341 Comment
  RSA183506  Minuartia douglasii D. E. Anderson 1965-5-15 3695 Humboldt About 5 miles N of Hoopa on Bald Hills Road. Comment
  HSC74124  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-6-16 1932 Humboldt Near Monks Camp. 1097 Comment
  CHSC98379  Mitella caulescens Dean Wm. Taylor 2004-6-24 19138 Humboldt Head of Madden Creek, Ammon Ridge, seepage area along Forest Road 5N15 0.4 miles west of the junction with Forest Road 5N01. 1356 Comment
  HSC99492  Mitella caulescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 152 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC18805  Modiola caroliniana Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6176 Humboldt near Ferndale; North-Western California Comment
  RSA0074180  Modiola caroliniana J. B. Feudge 1923-7-26 85 Humboldt Damp roadside near Ferndale, Calif Comment
  HSC70382  Moehringia macrophylla M. A. Baker 1980-6-7 1798 Humboldt Near Brush Mtn. 1128 Comment
  HSC99502  Monardella odoratissima subsp. pallida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 162 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
  JEPS63389  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain near Camp McKay. Northern Coast Ranges 1676 Comment
  UC32590  Monardella odoratissima subsp. pallida Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  CAS-BOT-BC444807  Montia diffusa L. R. Abrams 1916-7-11 5993 Humboldt Between Blocksberg and Bridgeville Comment
  JEPS30736  Montia diffusa L. Constance and Alan A. Beetle with J. P. Tracy 1940-5-17 2615 Humboldt 1 mi below Dinsmore's (above Van Duzen River) 762 Comment
  UC161050  Montia fontana Joseph P. Tracy 1909-5-2 2955 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  JEPS17205  Montia howellii Joseph P. Tracy 1921-4-24 5431 Humboldt South Fork of Eel River, Phillipsville Flat Eel River; Northern Coast Ranges, Phillipsville Flat, Eel River 91 Comment
  POM168985  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Eureka Comment
  HSC32090  Montia linearis D. E. Anderson, T. Nelson, S. Dowty 1972-6-17 5708 Humboldt McKeown Ranch, N of Dinsmore Comment
  CAS-BOT-BC445158  Montia parvifolia W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  RSA87679  Montia parvifolia L. R. Abrams, Rimo Bacigalupi 1922-6-25 8282 Humboldt Big Lagoon S of Quick Comment
  HSC17672  Montia parvifolia C. E. Fellows 1957-4-27 128 Humboldt 1 mi. W of Honeydew Comment
  HSC12368  Morella californica C. E. Fellows 1970-10-7 375 Humboldt McKinleyville 0.25 mi. SW of end of Murray Rd. Comment
  CAS-BOT-BC260574  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
  UCD86803  Muhlenbergia mexicana Joseph P. Tracy 1916-9-5 4774 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  UC582608  Myosotis discolor Joseph P. Tracy 1936-6-9 14891 Humboldt Cape Ridge back of Cape Mendocino; Cape Ridge 243 Comment
  HSC95678  Myosotis sylvatica Steven Lee 2004-4-13 18 Humboldt Arcata Community Forest, hillside along Jolly Giant Creek Comment
  UC1196177  Myosurus minimus Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch); Cathey Ranch 304 Comment
  CAS-BOT-BC101671  Myrica californica Joseph P. Tracy 1931-4-12 9332 Humboldt Dows Prairie 60 Comment
  UC275529  Myrica californica Joseph P. Tracy 1924-1-20 6596 Humboldt near Samoa (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  HSC77876  Myriophyllum sibiricum Bruce Hulberg 1977-10-23 771023 .8 Humboldt Fish Lake Comment
  HSC75514  Navarretia divaricata J. O. Sawyer, R. J. Cole 1977-7-3 3012 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  JEPS70349  Navarretia intertexta Milo S. Baker 1923-7-19 26 Humboldt Wilders (= Carlotta) Wilders Comment
  UC1222712  Navarretia intertexta subsp. intertexta Joseph P. Tracy 1950-6-25 18898 Humboldt 3 mi s Burr Valley (near the Sprosten Place, on the road to the Albee Place) Comment
  SEINET196701  Navarretia leucocephala Joseph P. Tracy 1928-6-24 8476 Humboldt East Ranch, between Middle and North Yager Creeks. 762 Comment
  UC1197900  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1937-8-5 16385 Humboldt near Dinsmore's; Van Duzen River 737 Comment
  HSC39447  Navarretia squarrosa Linda M. Barker 1976-8-2 1668 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  UC906677  Navarretia squarrosa Joseph P. Tracy 1942-7-18 17282 Humboldt Garberville 152 Comment
  UCSB5208  Navarretia squarrosa Parks, H. 1952-07 Humboldt Trinidad Comment
  JEPS70471  Navarretia squarrosa Joseph P. Tracy 1921-7-23 5857 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  UC906680  Navarretia tagetina Joseph P. Tracy 1942-7-18 17289 Humboldt Garberville 152 Comment
  CAS-BOT-BC7214  Nemophila macrocarpa William Wightman Price 1890-7-1 s.n. Humboldt Jarnagan Comment
  HSC71063  Nemophila menziesii Thomas W. Nelson, Jane P. Nelson 1977-5-30 3397 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  HSC100497  Nemophila menziesii Carl C. Marshall Jul 1887 86 Humboldt In the hills everywhere. Comment
  HSC13589  Nemophila menziesii D. E. Anderson 1965-4-24 3532 Humboldt Along Titlow Hill Rd. Comment
  HSC97503  Nemophila menziesii var. atomaria C. Witte 2007-5-8 1 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  UC146183  Nemophila menziesii var. atomaria Joseph P. Tracy 1908-6-9 2645 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC562585  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-10 9928 Humboldt Bear River Ridge , Bear River Ridge (Northern Coast Ranges) 609 Comment
  HSC32319  Nemophila parviflora D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5652 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC73127  Nemophila parviflora M. A. Baker 1980-5-18 1284 Humboldt Near Black Mtn. 1006 Comment
  RSA254745  Nemophila parviflora var. parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC162585  Nemophila pedunculata Joseph P. Tracy 1911-5-7 3178 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC6968  Noccaea fendleri subsp. californica D. E. Anderson 1963-5-19 2465 Humboldt Comment
  CAS-BOT-BC142289  Oemleria cerasiformis Thomas Nelson; Linda Barker 1977-6-3 3386 Humboldt Growing on flood plain of Mad River at south end of Mad River Bridge 53 Comment
  UC1198785  Oemleria cerasiformis Joseph P. Tracy 1923-4-1 6172 Humboldt Blue Lake; Northern Coast Ranges 60 Comment
  UC183584  Oemleria cerasiformis Joseph P. Tracy 1912-3-31 3564 Humboldt Blue Lake; Northern Coast Ranges 30 Comment
  UC666833  Oemleria cerasiformis Joseph P. Tracy 1935-7-9 14059 Humboldt Willow Creek; Trinity River Valley 152 Comment
  JEPS15792  Oenanthe sarmentosa Joseph P. Tracy 1924-9-28 6910 Humboldt Centerville Northern Coast Ranges, Centerville 6 Comment
  UC314582  Oenanthe sarmentosa Joseph P. Tracy 1924-9-28 6910 Humboldt Centerville Northern Coast Ranges, Centerville 6 Comment
  UCD81683  Oenanthe sarmentosa Chuck Hughes 2009-6-18 102 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  CDA38489  Oenanthe sarmentosa Margaret Bellue 1932-9-28 s.n. Humboldt Near Arcata. 0 Comment
  RSA246754  Oenanthe sarmentosa R. F. Thorne, P. Everett 1965-8-7 35179 Humboldt Big Lagoon, south end. 2 Comment
  UC1199306  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1932-7-13 10516 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1197574  Orthilia secunda Joseph P. Tracy 1932-7-16 10621 Humboldt Trinity Summit bear Corral Prairie 1584 Comment
  HSC100676  Orthocarpus faucibarbatus Carl C. Marshall Apr 1886 170 Humboldt Fields near bay. Comment
  HSC76408  Osmorhiza berteroi Teresa Prendusi 1981-7-24 478 Humboldt Near Whiteys Peak 1585 Comment
  UC642275  Osmorhiza occidentalis Joseph P. Tracy 1932-7-12 10471 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  HSC21585  Osmorhiza purpurea T. W. Beck 1963-5-10 49 Humboldt Camp Bauer, Korbel Comment
  HSC12755  Oxalis corniculata M. J. Athey 1970-11-22 23 Humboldt In Arcata along G street in front of P G & E Comment
  CHSC19520  Oxalis oregana R. D. Modafferi 1965-5-1 66 Humboldt 0.5 mile south of Trinidad on old highway 101. Roadside. Comment
  JEPS43140  Oxalis oregana W. L. Jepson 1932-7-26 16414 Humboldt Bull Creek Comment
  UC14238  Oxalis oregana Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  HSC16705  Oxalis oregana D. K. Smith 1968-4-8 15 Humboldt On West End Rd., 3 mi. from Hwy. 299 Comment
  HSC29727  Oxalis oregana J. D. Ackerman, A. M. Montalvo 1973-4-29 75 Humboldt Previously logged area, 2 mi. NE of Kneeland. 457 Comment
  HSC8609  Oxalis oregana R. A. Rasp 1964-4-5 30 Humboldt 7 mi. past Hoopa on Willow Creek Rd. Comment
  UC1103427  Oxalis oregana Joseph P. Tracy 1927-5-15 8044 Humboldt Sugar Bowl Mt., on rd between Willow Creek and Hoopa Northern Coast Ranges 457 Comment
  HSC16715  Oxalis pes-caprae W. F. Nickel 1965-5-15 Humboldt W side of College Elementary School, H.S.C. Campus Comment
  SD64134  Oxalis rubra W. Bertsch 1953-7-30 221 Humboldt Redwoods-Dyerville-Highway 101 60 Comment
  HSC64217  Oxalis trilliifolia J. O. Sawyer, M. A. Ericksen 1979-6-23 3384 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC166075  Packera bolanderi var. bolanderi Joseph P. Tracy 1908-6-23 2677 Humboldt near Grizzly Gulch (on Van Duzen River); Northern Coast Ranges, Van Duzen River 152 Comment
  JEPS103920  Parentucellia viscosa T. I. and F. M. Chuang 1991-7-7 7865 Humboldt Ca 7 mi S of Orick. Comment
  HSC27047  Parentucellia viscosa Brad Klipfel 1973-8-25 290 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  POM160894  Paspalum distichum Joseph P. Tracy 1918-9-29 5108 Humboldt South Fork of Eel River, 4 mi above the mouth 61 Comment
  UC526851  Paspalum distichum Joseph P. Tracy 1934-8-14 13581 Humboldt South Fork of Eel River, 1 mi above its mouth 60 Comment
  BLMAR697  Paxistima myrsinites Jennifer Wheeler 2011-5-24 697 Humboldt Lacks Creek, Pine Ridge/Stormy saddle road junction 975 Comment
  HSC56113  Paxistima myrsinites Gilbert Muth 1979-8-1 11880 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC99033  Paxistima myrsinites Cara Witte 2008-7-1 780 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  UC1713517  Pedicularis densiflora W. W. Price 1890-7-6 Humboldt Mad River Comment
  CAS-BOT-BC67623  Pellaea mucronata Donald Branscomb 1959-4-1 s.n. Humboldt Bear Butte, near Garberville. 853 Comment
  SEINET3873313  Pellaea mucronata subsp. mucronata Thomas Nelson, James Nelson 1976-5-30 2612 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC56186  Penstemon anguineus Gilbert Muth 1979-8-1 12118 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC56254  Penstemon anguineus Walter Overton 1979-8-1 12387 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  HSC74482  Penstemon deustus Gail Newton 1980-7-24 1767 Humboldt Near Somes Mtn. 1615 Comment
  HSC74399  Penstemon laetus subsp. sagittatus Gail Newton 1980-6-28 731 Humboldt Near Mad River Butte. 1536 Comment
  HSC39394  Penstemon purpusii D. E. Anderson, J. P. Smith 1971-7-6 - 1279 Humboldt Horse Mtn. Comment
  HSC35942  Penstemon rattanii Thomas W. Nelson, Jane Nelson, James Nelson 1975-7-15 2034 Humboldt French Camp, Bald Hills. Comment
  UC1222779  Penstemon rattanii Joseph P. Tracy 1951-6-24 19533 Humboldt Cameron Hill , Cameron Hill (Kneeland Prairie) 762 Comment
  UC71525  Pentagramma triangularis subsp. triangularis Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5733 Humboldt Supply Creek Comment
  UC1197122  Perideridia howellii Joseph P. Tracy 1935-5-25 13854 Humboldt Fort Seward 106 Comment
  UC1222747  Perideridia howellii Joseph P. Tracy 1950-8-18 19331 Humboldt along creek 1/2 mi along Blocksburg Rd w from bridge across creek; Larrabee Creek Comment
  HSC56076  Perideridia kelloggii G. L. Clifton, Terry Griswold 1979-7-31 11752 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC35701  Perideridia kelloggii Thomas W. Nelson, B. Reinhardt 1975-7-30 2116 Humboldt E of Pilot Rock 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
  HSC56308  Perideridia parishii subsp. latifolia Overton, Butler 1979-8-2 12627 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC413713  Persicaria hydropiper Malcom A. Nobs; S. Galen Smith 1949-8-11 1336 Humboldt Marsh at eastern shore of Stone Lagoon Comment
  SDSU6621  Phacelia D. F. Howe 1962-5-21 3300 Humboldt 24.5 miles north of garberville on #101. 61 Comment
  OBI77760  Phacelia bolanderi Rimo Bacigalupi, G. T. Robbins 1954-6-28 4657 Humboldt Trinity River, 2 mi N of Hoopa, Hoopa Valley Indian reservation 91 Comment
  BLMAR698  Phacelia ciliata Jennifer Wheeler 2011-6-15 698 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  JEPS1201  Phacelia malvifolia Joseph P. Tracy 1927-6-8 8118 Humboldt TRINIDAD Comment
  HSC58179  Phacelia mutabilis G. L. Clifton 1979-8-2 12263 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC666591  Phacelia nemoralis subsp. oregonensis W. S. Boyle 1942-5-9 1086 Humboldt within 50 yd Redwood Highway, #101 (overlooking South Fork of the Eel River, 1 mi from n boundary of Mendocino Co.) Comment
  HSC10555  Phalaris arundinacea D. J. McVean 1965-5-18 79 Humboldt Along Old Arcata Rd., just S of intersection with Inidanola Rd. Arcata, CA Comment
  SEINET200963 Image available Phalaris californica J. P. Tracy 1934-6-21 13241 Humboldt Along hwy across Salmon Creek flats, around Humboldt Bay; N Coast Ranges. 6 Comment
  UC207582  Phalaris paradoxa Joseph P. Tracy 1916-5-31 4700 Humboldt along Eel River from South Fork to Scotia Holmes Flat; Northern Coast Ranges, along Eel River 60 Comment
  CAS-BOT-BC76560  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt Summit of U.S. Highway 299 betw. Willow Creek and Blue Lake. Comment
  JEPS43497  Philadelphus lewisii Lincoln Constance 1934-5-26 655 Humboldt near Founder's Tree; South Fork Eel River, Bull Creek Region, North Dyerville Fla 48 Comment
  UC11456  Philadelphus lewisii C. C. Marshall 1888-1 Humboldt Comment
  RSA0057781  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt Along Redwood Creek, 2 miles W of Briceland. 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
  UC188863  Phleum alpinum Joseph Burtt Davy 1899-7-30 6198 Humboldt Russ Ranch Comment
  HSC54577  Phleum pratense Overton, Butler 1979-7-24 9615 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC58632  Phleum pratense Gilbert Muth 1979-7-31 11490 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC55663  Phlox adsurgens Overton, Butler 1979-7-25 9821 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC71667  Phlox adsurgens Gail Newton 1980-6-24 554 Humboldt Near Ladder Rock 1500 Comment
  HSC103243  Phlox adsurgens Lisa D. Hoover 1998-7-2 244 Humboldt Six Rivers National Forest, Sims Mtn. Quad, Lower Trinity Ranger District, along Route 1 in vicinity of Whiting Springs and Last Chance Ridge 1463 Comment
  UC1198561  Phlox gracilis Joseph P. Tracy 1908-6-9 2666 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC52845  Phlox gracilis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5789 Humboldt Trinity Summit Comment
  UC908476  Phlox gracilis Joseph P. Tracy 1930-5-4 8692 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  SEINET6630811  Phoradendron villosum J. R. Bruff 1937-3-19 802 Humboldt Oak Flat Camp- Ridge Route Comment
  SEINET4090988  Physocarpus capitatus O. M. Clark 1932-1 5313 Humboldt South Eureka. Comment
  CAS-BOT-BC78202  Picea sitchensis Carl B. Wolf 1927-8-29 1202 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, [Mt.Glen] Mt. Glen Comment
  JEPS46729  Picea sitchensis J. P. Tracy Feb. 1901 Humboldt Humboldt Bay Comment
  UC1585368  Picea sitchensis R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 53 Humboldt 0.5 km s Hwy 255 (on New Navy base Rd, w of Eureka); North Split of Samoa Peninsula Comment
  RSA0116907  Picea sitchensis Lyman Benson 1949-9-4 14188 Humboldt Bishop Pine Lodge, 5 miles North of Trinidad. Mt. Range: North Coast Ranges. 15 Comment
  HSC70580  Pinus attenuata Gail Newton 1980-7-24 1775 Humboldt Near Somes Mtn. 1615 Comment
  RSA46681  Pinus contorta var. contorta Doris K. Kildale 1937-8-12 15084 B Humboldt South Fork Mountain. Comment
Read comments
Jun 21 2012
  UC63996  Pinus lambertiana Mrs. M. H. Manning 1901-1 Humboldt 5 mi from Hupa (Redwood trail) Comment
  CAS-BOT-BC78982  Pinus muricata Doris K. Kildale 1927-3-19 2941 Humboldt Luffenholtz Creek near Trinidad Comment
  UC55659  Pinus ponderosa P. E. Goddard 1901-7-12 66 Humboldt Hupa Comment
  UC13529  Piperia unalascensis Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC666984  Piperia unalascensis Joseph P. Tracy 1934-7-18 13433 Humboldt Grouse Mountain 1524 Comment
  UC615024  Piperia unalascensis Beryl O. Schreiber 1934-6-6 1146 Humboldt 5 mi e Gray's Resort (road to Redding); Redwood Creek Comment
  JEPS14836  Pityopus californicus Virginia P. Fox 1919-7-13 Humboldt Bald Mt. Comment
  JEPS61017  Plagiobothrys Joseph P. Tracy 1942-5-16 17355 Humboldt Garberville; 1 mi ne of town 152 Comment
  JEPS60973  Plagiobothrys reticulatus Joseph P. Tracy 1916-5-31 4691 Humboldt Holmes Flat, along Eel River from South Fork to Scotia Northern Coast Ranges, Eel River 60 Comment
  UC206146  Plagiobothrys reticulatus Joseph P. Tracy 1913-6-23 4275 Humboldt on ridge between Van Duzen River and Mad River (opposite Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R, Mad R, Dinsmore's Ranch 1066 Comment
  JEPS60995  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1923-6-20 6340 Humboldt Miranda North Coast Ranges 91 Comment
  UC1222199  Plagiobothrys scouleri Joseph P. Tracy 1950-6-8 18724 Humboldt Bear River Ridge Comment
  UC175681  Plagiobothrys tenellus Joseph P. Tracy 1908-6-9 2646 Humboldt gravelly hills Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS7112  Plantago elongata Joseph P. Tracy 1927-6-26 8218 Humboldt Stone Lagoon 6 Comment
  UC153942  Plantago erecta Joseph P. Tracy 1905-4-30 2171 Humboldt Samoa North Coast Region, Humboldt Bay, Ocean Beach Comment
  RSA18012  Plantago hirtella var. galeottiana Carl B. Wolf 1927-8-22 781 Humboldt Big Lagoon. Comment
  HSC73154  Plantago lanceolata M. A. Baker 1980-5-18 1301 Humboldt Near Black Mtn. 1006 Comment
  HSC99488  Plantago lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 147 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
  HSC16850  Plantago major Anderson 1961-8-25 1748 Humboldt 1.5 mi. S of Trinidad Comment
  SEINET10782201  Plantago major J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13016 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  HSC37567  Plantago maritima J. D. Ackerman 1975-6-10 464 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  RSA68979  Plantago maritima F. W. Peirson 1923-7-11 3857 Humboldt Flats north of Eureka. Comment
  RSA382868  Platanthera leucostachys Brad W. Klipfel 1973-7-31 255 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  RSA12558  Platanthera stricta Carl B. Wolf 1934-7-2 5881 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC16800  Platystemon californicus Jack Rockwell 1962-5-4 49 Humboldt Lone Star Junction 549 Comment
  UC229824  Platystemon californicus Joseph P. Tracy 1922-5-29 6071 Humboldt head of South Yager Creek; Northern Coast Ranges, head of South Yager Creek 762 Comment
  CDA24588  Platystemon californicus E. Cohen 2002-4-15 21 Humboldt Eureka. Comment
  UC146097  Platystemon californicus Joseph P. Tracy 1904-5-1 2047 Humboldt Bucksport; Northern Coast Region, Region about Humboldt Bay 0 Comment
  UC146098  Platystemon californicus Joseph P. Tracy 1904-5-1 2046 Humboldt near Bucksport (region about Humboldt Bay); Northern Coast Region, region about Humboldt Bay 0 Comment
  UC1540409  Platystemon californicus Gary L. Hannan 1976-5-25 166 Humboldt New Bavy Base Road, 6.6 km S of bridge to Eureka Comment
  JEPS4808  Plectritis brachystemon Joseph P. Tracy 1930-6-8 8734 Humboldt Kneeland Prairie 762 Comment
  CHSC77469  Plectritis ciliosa subsp. insignis Vernon H. Oswald 2000-4-3 9913 Humboldt Samoa Road at the County Boat Ramp on the North Spit of Humboldt Bay. 4 Comment
  HSC37515  Plectritis congesta A. M. Montalvo, J. D. Ackerman 1975-6-22 488 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC98654  Plectritis congesta subsp. brachystemon Cara Witte 2007-7-3 413 Humboldt Along National Forest 1. Approximately 1 mile south of White Oak Opening. 1364 Comment
  HSC21695  Plectritis congesta subsp. brachystemon Paul Shields May 1955 Humboldt 8 mi. S of Arcata. Comment
  HSC26333  Plectritis congesta subsp. congesta Thomas W. Nelson 1971-4-12 375 Humboldt S spit of Humboldt Bay. Comment
  HSC97358  Pleuricospora fimbriolata Rudolf W. Becking 1972-6-30 Humboldt Fish Lake area, Orleans. Bulk Collection 31 762 Comment
  UC552670  Pleuropogon californicus Joseph P. Tracy 1935-5-25 13846 Humboldt Fort Seward 106 Comment
  RSA183537  Pleuropogon refractus H. S. Logsdon 1964-5-10 12 Humboldt 4 miles NE of Orick at Boye's Prairie Comment
  SEINET200956 Image available Pleuropogon refractus J. P. Tracy 1922-6-18 6095 Humboldt Head of Middle Yager Creek. 762 Comment
  UC1103803  Pleuropogon refractus Joseph P. Tracy 1926-5-22 7514 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  HSC73731  Poa bolanderi M. A. Baker 1980-7-19 3009 Humboldt Near Bret Hole. 1814 Comment
  UC526847  Poa bolanderi Joseph P. Tracy 1934-7-18 13435 Humboldt Grouse Mt 1524 Comment
  UCD90579  Poa bolanderi A. H. Murphy 1951-6-25 68 Humboldt Snow Camp Meadows, ca. 8 miles e.n.e. of Kneeland. Comment
  HSC10662  Poa bulbosa D. E. Anderson 1963-5-18 2446 Humboldt 1.4 mi. W of Berry Summit. Comment
  HSC74676  Poa cusickii subsp. epilis Gail Newton 1981-5-16 2176 Humboldt Near Bug Creek. 1228 Comment
  HSC10694  Poa douglasii J. W. Johnson 1961-9-4 1101 Humboldt Christenson Farm, Samoa Peninsula, Arcata. Comment
  UC1103795  Poa howellii Joseph P. Tracy 1918-7-5 5035 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  UC1103185  Poa kelloggii J. P. Tracy 1901-6-10 11321 Humboldt immediate vicinity Eureka 0 Comment
  UC525620  Poa kelloggii Joseph P. Tracy 1926-4-25 7415 Humboldt on Van Duzen River Grizzly Creek; North Coast Ranges 91 Comment
  LA12558  Poa macrantha S. K. Harris; 1936-6-15 3383 Humboldt Trinidad Head Comment
  UCD91548  Poa macrantha Joseph P. Tracy 1947-7-3 17766 Humboldt at mouth of Little River. 6 Comment
  UC589883  Poa pratensis subsp. pratensis H. S. Yates 1936-6-17 5703 Humboldt lower nw slope Buck Mt; South Fork Peak Quadrangle 792 Comment
  UC180500  Poa secunda subsp. secunda Joseph P. Tracy 1913-6-14 4120 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC525669  Poa secunda subsp. secunda Joseph P. Tracy 1927-4-2 7881 Humboldt facing S Fork of Eel River Phillipsville; Northern Coast Ranges 121 Comment
  HSC10812  Poa unilateralis R. D. Rogers 1964-4-16 5 Humboldt Patricks Point State Park. Comment
  RSA10121  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad 61 Comment
  RSA83441  Pogogyne douglasii F. W. Peirson 1926-7-14 7066 Humboldt Redwood Camp, Lower Eel River Comment
  CDA36977  Polycarpon tetraphyllum R. Robison Humboldt Humboldt Lagoons State Park, south of Stone Lagoon day use parking area. 0 Comment
  HSC48881  Polycarpon tetraphyllum J. P. Smith, Thomas W. Nelson 1977-6-30 9222 Humboldt Samoa Peninsula just E of the drag strip. Comment
  SD53201  Polygala californica Darley F. Howe 1962-5-21 3292 Humboldt 16 miles north of Garberville on #101 60 Comment
  HSC44772  Polygala californica Thomas W. Nelson, Jane P. Nelson 1977-7-4 3585 Humboldt W side of road N from Alder Springs 1494 Comment
  JEPS27112  Polygala cornuta var. cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA43860  Polygala cornuta var. cornuta H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC110515  Polygonum Malcom A. Nobs; S. Galen Smith 1949-8-9 1232 Humboldt On southern side of the town of Blue Lake. Comment
  UC672945  Polygonum amphibium Joseph P. Tracy 1934-7-20 13468 Humboldt Big Lagoon 3 Comment
  UC672972  Polygonum bistortoides Joseph P. Tracy 1927-6-18 8171 Humboldt Bear River Ridge 609 Comment
  HSC100602  Polygonum convolvulus Carl C. Marshall Sep 1886 246 Humboldt Fields near Arcata. Comment
  UC1116239  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1947-8-24 17887 B Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1222470  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1912-7-31 3941 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 Comment
  UC144100  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1909-7-31 3038 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1541405  Polygonum douglasii subsp. spergulariiforme H. E. Parks and J. P. Tracy 1930-9-15 767 Humboldt Kneeland Bald Hills Comment
  BLMAR58  Polygonum paronychia Jennifer Anthony-Wheeler 1994-3-1 58 Humboldt Samoa/manilla dunes, growing throughout the coastal dunes 12 Comment
  CAS-BOT-BC109177  Polygonum paronychia Doris K. Kildale 1927-5-15 3165 Humboldt Beach at Cape Mendocino. Comment
  SD117464  Polygonum paronychia Robert F. Thorne 1974-7-29 45080 Humboldt Samoa Dunes Comment
  UC1198095  Polygonum parryi Joseph P. Tracy 1912-7-31 3910 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (on nw slope of mt., along streamlet) 1066 Comment
  UC55512  Polygonum persicaria Mrs. M. H. Manning 1900-1 Humboldt Hoopa Comment
  CAS-BOT-BC419854  Polygonum polygaloides subsp. confertiflorum Alice Eastwood; John Thomas Howell 1937-6-23 4812 Humboldt Little Van Duzen River Comment
  HSC74386  Polygonum polygaloides subsp. kelloggii M. A. Baker 1980-6-28 2504 Humboldt Near Mad River Buttes 1445 Comment
  CDA37209  Polygonum polystachyum B. Villegas, Bruce Bryan 2009-10-6 s.n. Humboldt Eureka; 2nd Street at P Street. Comment
  RSA20960  Polygonum polystachyum Carl B. Wolf 1937-9-12 9334 Humboldt SW side of Eureka bordering Humboldt Bay 3 Comment
  HSC63228  Polypodium californicum M. A. Baker 1978-5-6 468 Humboldt Weitchpec Comment
  UC57306  Polypodium calirhiza J. P. Tracy 1901-1-27 985 Humboldt sand hill of Ocean Beach at Samoa (opposite Eureka) Comment
  HSC95875  Polypodium calirhiza Will Ferrand 2002-5-7 46 Humboldt 200 ft. N of the intersection of Lanphere Rd. and the entrance to Lanphere Dunes Preserve 9 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
  UC812497  Polypodium glycyrrhiza Eliz. Parsons Hawver June 1915 Humboldt Carlotta Comment
  CAS-BOT-BC76847  Polypodium glycyrrhiza Doris K. Kildale 1928-12-30 6766 Humboldt Pillipsville Comment
  HSC1109  Polypodium glycyrrhiza Gene S. Van Horn 1962-1-12 8 Humboldt 150 yards from mouth of E creek leading into the HSC reservoir 61 Comment
  UC249781  Polypodium glycyrrhiza Joseph P. Tracy 1924-2-24 6602 Humboldt along Eel River from S Fork to Scotia (near McKee's Mill); Northern Coast Ranges 60 Comment
  CAS-BOT-BC72084  Polypodium scouleri W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  JEPS93137  Polypodium scouleri M. Wetherwax 1992-5-20 2434 Humboldt coastal bluff s side of Wedding Rock; Patrick's Point State Park 30 Comment
  RSA689966  Polypodium scouleri Susan Hutchinson 1931-07 102 Humboldt Grade between Trinidad and Big Lagoon 15 Comment
  UC519312  Polypodium scouleri Joseph P. Tracy 1933-6-6 12510 Humboldt cliffs along shore Trinidad; Northern Coast Region 6 Comment
  UC1132889  Polypogon australis H. L. Person 1932-5-19 Humboldt near Arcata (<Mendocino cutover area>); Eureka Quad. Comment
  JEPS82390  Polypogon interruptus A. S. Hitchcock 1915-7-13 839 Humboldt Eureka Comment
  CAS-BOT-BC233215  Polypogon maritimus Joseph P. Tracy 1930-10-19 9236 Humboldt Eel River, Alton to Fortuna 15 Comment
  UCD91207  Polypogon maritimus Joseph P. Tracy 1939-8-5 16377 Humboldt Along Van Duzen River, Opposite Buck Mountain. Dinsmore's. 762 Comment
  HSC26179  Polypogon monspeliensis J. P. Smith, Steve Selva 1970-6-14 3837 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UCD91265  Polypogon monspeliensis Harley P. Chandler 1901-6-1 1431 Humboldt North Coast Ranges. Klamath River. 335 Comment
  UCD91354  Polypogon monspeliensis A. H. Murphy 1948-5-1 s.n. Humboldt Blocksburg-Alderpoint road, 3 miles from Alderpoint. Comment
  HSC98825  Polystichum imbricans subsp. imbricans Cara Witte 2008-9-13 1039 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  CHSC23905  Polystichum munitum Mark Johnson 1974-4-28 28 Humboldt Adjacent to Lady Bird Johnson Grove, 5 mi ne of Orick. 228 Comment
  UCSB8319  Polystichum munitum Robbins, G. 1936-8-1 Humboldt Near Carlotta. Comment
  HSC31655  Populus trichocarpa Timothy B. Devine 1974-5-4 325 Humboldt Mad River floodplain 1 mi. from Blue Lake on Hatchery Rd. 305 Comment
  JEPS64554  Populus trichocarpa W. L. Jepson 1932-8-6 16494 Humboldt Garberville Comment
  HSC49611  Potamogeton natans R. York 1979-4-16 234 Humboldt Between Arcata and Eureka along Hwy. 101 Comment
  HSC62984  Potamogeton natans David Wheeler 1979-4-20 Humboldt Clam Beach Ponds, .25 mi. S of Crannel Rd., between the frontage road and Hwy. 101 Comment
  JEPS42953  Potamogeton richardsonii E. G. Pluke 1926-8-1 Humboldt w of Dow's Prairie (at mouth of Widow White Creek); Widow White Creek 3 Comment
  UCD149951  Potamogeton richardsonii William Anderson; H. Mc. 1964-8-5 s.n. Humboldt Freshwater Lagoon. Comment
  BLMAR306  Potentilla anserina subsp. pacifica Jennifer Anthony-Wheeler 2002-7-1 306 Humboldt South Spit 6 Comment
  SD42346  Potentilla anserina subsp. pacifica Carl B. Wolf 1937-9-12 9326 Humboldt Dry Lagoon State Park Comment
  HSC15483  Prosartes smithii R. E. Hafenfeld 1965-5-9 66 Humboldt Fern Canyon, Gold Bluff Beach Comment
  CAS-BOT-BC517510  Prosartes smithii Doris K. Kildale 1930-4-27 9563 Humboldt Prairie Creek, near Orick Comment
  HSC15472  Prosartes smithii T. W. Beck 1963-5-10 45 Humboldt Camp Bauer, Korbel Comment
  HSC60293  Prosartes smithii Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  SEINET12050377  Prosartes smithii F. H. Utech 1988-1 88 -271 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Mile Marker 11.40, Van Duzen County Park 50 Comment
  HSC328  Prunella vulgaris J. Wendell Howe Humboldt Y Camp, Redway, Rocky Beach Comment
  HSC22507  Prunella vulgaris subsp. lanceolata J. R. Lippincott 1967-7-16 5 Humboldt Near N Fork Mad River bridge 152 Comment
  UC25637  Prunella vulgaris var. lanceolata J. Burtt Davy 1899-6-11 5443 Humboldt Hubbards; North Coast Ranges, Hubbards Comment
  UC1402061  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-18 622 -30 Humboldt Comment
  CAS-BOT-BC159983  Prunus emarginata Doris K. Kildale; L. B. Kildale 1930-5-5 9554 Humboldt Bug Creek, Chaparral Mt. Comment
  HSC71668  Prunus emarginata Gail Newton 1980-6-24 552 Humboldt Near Ladder Rock 1500 Comment
  UC1198775  Prunus emarginata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9036 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC666844  Prunus emarginata Joseph P. Tracy 1933-6-13 12571 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  HSC100634  Prunus emarginata Carl C. Marshall Jun 1886 183 Humboldt Throughout the county. Comment
  UC154497  Prunus virginiana var. demissa Joseph Burtt Davy and Walter C. Blasdale 1899-5 5703 Humboldt Hoopa Valley; North Coast Ranges, Hoopa Valley Comment
  HSC37671  Pseudognaphalium luteoalbum R. Sutherland 1976-8-13 30 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  JEPS20501  Pseudognaphalium stramineum Lincoln Constance 1934-5-26 665 Humboldt s end Dyerville Bridge (sand and gravel bar of river); South Fork Eel River 45 Comment
  UC1134184  Pseudotsuga menziesii var. menziesii G. T. Nordstrom 1937-7-1 1423 Humboldt 3 mi e of Orick; Orick Quadrangle 213 Comment
  UCD18378  Psoralea micrantha Bryant Washburn 1974-7-8 s.n. Humboldt 12 miles west of Winnemucca, Milepost 519.75, at Raglan siding, in ballast section along Western Pacific Railroad tracks. Comment
  HSC36438  Pteridium aquilinum var. pubescens John Rehling 1974-7-8 6 Humboldt County park at Big Lagoon Comment
  HSC36260  Pteridium aquilinum var. pubescens John Rehling 1974-8-19 20 Humboldt Comment
  HSC41289  Pteridium aquilinum var. pubescens Brad Klipfel 1974-7-27 483 Humboldt Horse Mtn. in draw to the N of the towers Comment
  UC1222154  Pterospora andromedea Joseph P. Tracy 1950-8-8 19274 Humboldt 3 mi e Box Camp; Trinity Summit Comment
  JEPS58852  Pyrola asarifolia Milo S. Baker 1923-7-20 63 Humboldt Redwood House Road Comment
  HSC17970  Pyrola asarifolia subsp. bracteata J. Wendell Howe 1930-6-28 Humboldt Kneeland Prairie, edge of Redwood Belt Comment
  UC1197584  Pyrola picta Joseph P. Tracy 1949-7-19 18377 Humboldt Grouse Mountain, at Friday Camp Grouse Mountain; , Friday Camp 1219 Comment
  UCD47053  Quercus X morehus W. L. J. Jun-5 Jul 1903 2191 Humboldt Van Arsdale Ranch, Halker Valley region. Expedition of W.L. Jepson and W.W. Mott from Ukiah to southern Humboldt Co., via the Blue Rock Ridge and return via Fort Bragg. 457 Comment
  HSC54593  Quercus chrysolepis Overton, Butler 1979-7-24 9661 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC54661  Quercus chrysolepis Overton, Butler 1979-7-25 9887 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC1196532  Quercus chrysolepis Joseph P. Tracy 1916-9-5 4775 Humboldt 4 mi above Mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC54678  Quercus chrysolepis Harley P. Chandler Jun 1901 1435 Humboldt Klamath River North Coast Ranges 304 Comment
  UC5535  Quercus chrysolepis unknown 1867-6-17 Humboldt Elk Ridge Comment
  RSA44460  Quercus chrysolepis var. nana H. M. Pollard 1947-9-1 s.n. Humboldt Somes Mt. near summit, Orleans region. Comment
  UC1193248  Quercus garryana K. Cuff 1950-10-10 127 Humboldt 1.5 mi n Honeydew 152 Comment
  UC1541341  Quercus garryana H. E. Parks, J. P. Tracy 1930-9-15 764 Humboldt Kneeland Prairie Bald Hills Comment
  CAS-BOT-BC105163  Quercus kelloggii Doris K. Kildale 1927-4-17 3093 Humboldt Briceland Bridge, 1/2 mile W of Gaberville 114 Comment
  SEINET4291710 Image available Quercus kelloggii Unknown 1966-1 660024 Humboldt Avenue of Giants, near Phillipsville. Comment
  UC1196511  Quercus sadleriana Joseph P. Tracy 1947-7-5 17798 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UCD47220  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi. N.E. of Hoopa along trail to Trinity Summit from end of forest Rd. 1463 Comment
  HSC54519  Quercus vacciniifolia Overton, Butler 1979-7-23 9446 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC72804  Quercus vacciniifolia M. A. Baker 1980-6-16 1939 Humboldt Near Monks Camp. 1097 Comment
  CAS-BOT-BC186671  Ranunculus Mrs. H. C. Cantelow 1936-5-18 1388 Humboldt 8 mi. N. of Orick nr. Corkscrew Tree Comment
  UC594250  Ranunculus aquatilis var. hispidulus C. C. and S. K. Harris 1936-6-12 3363 Humboldt near Bridgeville; Chalk Mountain Comment
  UC184009  Ranunculus californicus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3612 Humboldt near Hydesville; Northern Coast Region 60 Comment
  POM269619  Ranunculus flammula var. ovalis Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka. 46 Comment
  HSC18216  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  HSC18155  Ranunculus muricatus S. J. Roberts 1965-4-25 32 Humboldt 0.25 mi. E of Lanphere's bridge across old Mad River channel Comment
  HSC26676  Ranunculus muricatus Thomas W. Nelson 1971-5-7 430 Humboldt Dunes at Lamphere property Comment
  UC1196212  Ranunculus occidentalis J. P. Tracy 1901-5-5 1066 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC18167  Ranunculus occidentalis var. occidentalis Lincoln Constance 1934-5-24 645 Humboldt S Fork Eel River 122 Comment
  UC249694  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1921-4-24 5477 Humboldt Englewood Prairie Northern Coast Ranges, Eel River (along river from South Fork to Scotia) 60 Comment
  UC503033  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9007 Humboldt near McKay Camp (along stream below meadow); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UCR275102  Ranunculus repens Charity A. Hartshorn 2016-4-24 12 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  RSA399439  Ranunculus repens R. S. Woglum 1938-8-29 2036 Humboldt State Park Grounds, S of Trinidad. Comment
  HSC18184  Ranunculus repens var. repens J. W. Johnson 1962-4-19 1258 Humboldt Creek margin at Miller Farm, Samoa Peninsula Comment
  RSA670129  Ranunculus sardous J. M. DiTomaso 2000-8-12 s.n. Humboldt Arcata bottoms along Seidel Road Comment
  HSC56103  Ranunculus uncinatus G. L. Clifton 1979-7-31 11830 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC502929  Ranunculus uncinatus Joseph P. Tracy 1932-7-10 10394 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC1199217  Raphanus sativus J. P. Tracy 1906-4-29 2427 Humboldt immediate vicinity of Eureka 0 Comment
  RSA7735  Rhamnus californica subsp. occidentalis Carl B. Wolf 1927-8-28 1172 Humboldt On grade 9 miles from Willow Creek, Lord Ellis Road to Blue Lake Comment
  RSA13280  Rhamnus purshiana Doris K. Kildale 1928-7-1 5304 Humboldt French camp on Orick-Martins ferry road 610 Comment
  RSA202162  Rhamnus purshiana W. L. Jepson 1902-6-24 1932 Humboldt Karbal to Rugel's Ranch Comment
  RSA246419  Rhamnus purshiana Carl B. Wolf 1937-8-13 9260 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  UC592852  Rhamnus purshiana Doris Kildale Gillespie 1932-9-1 Humboldt 1 block n Henderson St. (on S Street, Eureka); Eureka 30 Comment
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Mar 1 2013
  UC726369  Rhamnus purshiana A. A. Heller 1923-7-9 13775 Humboldt 5 mi from Arcata (near Blue Lake) Comment
  HSC7879  Rhododendron macrophyllum G. T. Nordstrom 1966-5-4 25 Humboldt Kneeland- Maple Creek road, 1/8 mi. W of the jct. with Fickle Hill rd. Comment
  HSC36437  Rhododendron occidentale var. paludosum John Rehling 1974-7-8 5 Humboldt County park at Big Lagoon Comment
  HSC7884  Rhododendron occidentale var. paludosum N. D. Dennis 1965-4-29 30 Humboldt Old Arcata Rd., 6 mi. S of Arcata Comment
  CAS-BOT-BC433131  Ribes Doris K. Kildale 1926-4-6 1717 Humboldt Dobbyns [Dobbyn] Creek 152 Comment
  UC1046563  Ribes bracteosum R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3407 Humboldt near High Prairie (on long high ridge between Mad River and Redwood Creek); Bald Mountain 1066 Comment
  UC161565  Ribes bracteosum Joseph P. Tracy 1911-6-4 3216 Humboldt 5 mi from coast; Northern Coast Region, Little River 121 Comment
  RSA0025006  Ribes divaricatum Lyman Benson 1929-7-19 1875 Humboldt Mouth of Matole [Mattole] River. Comment
  BLMAR564  Ribes inerme Jennifer Wheeler 2010-3-29 564 Humboldt Headwaters Forest Reserve, along Elk River Trail within first mile, east side trail 42 Comment
  CAS-BOT-BC168854  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-6 16281 Humboldt Lack Pond, in Trinity River Valley, opposite mouth of Willow Creek 152 Comment
  SEINET3119071 Image available Ribes marshallii Unknown 1932-7-15 s.n. Humboldt Trinity Summit, Ridges East of Corral Prairie 1829 Comment
  CAS-BOT-BC206039  Ribes menziesii Joseph P. Tracy 1935-3-3 13713 Humboldt Dow's Prairie 60 Comment
  CAS-BOT-BC206044  Ribes menziesii Doris K. Kildale 1928-2-19 4272 Humboldt Patrick's Point Comment
  HSC20317  Ribes menziesii G. B. Kendall 1965-5-16 33 Humboldt Trinidad State Park Comment
  HSC20318  Ribes menziesii Larry Berti 1968-10-10 Humboldt Comment
  JEPS49220  Ribes menziesii Jos. P. Tracy 1921-3-13 5421 Humboldt near Alton (Drake's Hill) 30 Comment
  UC1198929  Ribes menziesii Joseph P. Tracy 1936-3-22 14783 Humboldt 4 mi se Korbel (Angel's Ranch) 457 Comment
  UC1198935  Ribes menziesii Joseph P. Tracy 1913-3-9 4021 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC154124  Ribes menziesii J. P. Tracy 1909-2-14 2941 Humboldt immediate vicinity Eureka 0 Comment
  RSA0024754  Ribes roezlii Doris Kildale Gillespie 1937-8-12 15258 Humboldt South Fork Mountain. Comment
  UC1198950  Ribes roezlii var. amictum Joseph P. Tracy 1930-7-27 9111 Humboldt near Petrolia; North Coast Ranges, Mattole River 15 Comment
  BLMAR226  Ribes roezlii var. amictum Jennifer Anthony-Wheeler 1996-7-11 226 Humboldt N.Dobbyn creek 1005 Comment
  CAS-BOT-BC198900  Ribes roezlii var. cruentum L. R. Abrams 1918-6-16 7198 Humboldt Willows Creek Comment
  RSA0024585  Ribes roezlii var. cruentum Peter H. Raven, Richard Snow 1958-7-20 13630 Humboldt Friday Ridge Road to Grouse Mountain, 10.8 miles southwest of junction with United States Highway 299. Comment
  HSC20341  Ribes sanguineum M. S. Miller 1965-4-2 18 Humboldt Arcata, HSC campus Comment
  CAS-BOT-BC211979  Ribes sanguineum Joseph P. Tracy 1942-6-23 17238 Humboldt Near Box Camp, Trinity Summit 1524 Comment
  HSC20338  Ribes sanguineum Eugene Andreuccetti 1964-5-2 32 Humboldt 3.25 mi. N of Tish Tang Ranger Station on Hwy. 96 Comment
  SEINET13942780 Image available Ribes sanguineum J. D. Ackerman 1973-1 40 Humboldt T6N R1W Sec 26. 1.5 miles north of Manila Comment
  CAS-BOT-BC144690  Ribes sanguineum var. glutinosum Doris K. Kildale 1928-2-19 4271 Humboldt Patrick's Point Comment
  RSA0048254  Ribes sanguineum var. glutinosum James R. Shevock 1972-3-6 1471 Humboldt Along Hwy. 299. 304 Comment
  HSC103195  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-30 31 Humboldt Grouse Mountain on Forest Route 1 at the fork with Grouse Mountain Road. 1578 Comment
  UC1198918  Ribes viscosissimum Joseph P. Tracy 1932-7-15 10606 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UC1239757  Romanzoffia californica Joseph P. Tracy 1935-5-12 13799 Humboldt along Trinity Hwy. Willow Creek Canyon 304 Comment
  UC906678  Romanzoffia californica Joseph P. Tracy 1943-5-9 17423 Humboldt along Trinity Hwy. Willow Creek Canyon (rock bluffs near Ruby Creek) 609 Comment
  CAS-BOT-BC74506  Rorippa curvisiliqua Doris K. Kildale 1926-7-18 2391 Humboldt Orick. Comment
  HSC58652  Rorippa curvisiliqua G. L. Clifton, Terry Griswold 1979-7-31 11719 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC14401  Rorippa palustris Chestnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  UC161000  Rosa Joseph P. Tracy 1911-7-7 3410 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  OBI35864  Rosa gymnocarpa David J. Keil 1983-7-2 17330 Humboldt Horse Mtn Summit SW of Willow crk Comment
  UC1199037  Rosa gymnocarpa var. serpentina Joseph P. Tracy 1939-8-16 16404 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC146835  Rosa nutkana Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC12845  Rosa nutkana subsp. macdougalii J. Burtt Davy 1899-6-13 5492 Humboldt along river near Camp Grant; Eel River Comment
  UC902161  Rosa nutkana var. nutkana Joseph P. Tracy 1942-9-20 17320 Humboldt 2 mi s of town Field's Landing 6 Comment
  UC902156  Rosa pisocarpa Joseph P. Tracy 1949-8-7 18436 Humboldt near Box Camp (along stream); Trinity Summit 1524 Comment
  HSC19673  Rubus armeniacus M. L. Stuart 1965-4-18 6 Humboldt Fern Lake Dam Comment
  HSC89515  Rubus armeniacus M. Roantree 1985-6-10 81 Humboldt East side of Trinidad Head Comment
  RSA43337  Rubus laciniatus H. M. Pollard 1948-8-9 s.n. Humboldt New [near] Orleans. Comment
  CAS-BOT-BC148383  Rubus leucodermis Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC73244  Rubus leucodermis M. A. Baker 1980-5-18 1341 Humboldt Near Black Mtn. 792 Comment
  HSC97599  Rubus parviflorus Steven 2004-4-26 28 Humboldt From Old Arcata Rd. go E on Jacoby Creek Rd. Comment
  HSC19682  Rubus spectabilis D. B. Bader 1963-3-1 49 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101., E bank of S end Comment
  HSC19697  Rubus ursinus John A. Dubois 1962-5-23 21 Humboldt 20 mi. E of Arcata. Comment
  HSC19698  Rubus ursinus T. M. Mingo May 1965 Humboldt W edge of Big Lagoon Bog Comment
  HSC70847  Rubus ursinus M. A. Baker 1980-6-7 1829 Humboldt Near Ammon Creek 732 Comment
  HSC90634  Rubus ursinus Gail Newton 1982-6-1 3571 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC68081  Rudbeckia occidentalis J. P. Smith, Steve Selva 1970-6-30 4134 Humboldt Comment
  UC146145  Rumex J. P. Tracy 1906-8-18 2543 Humboldt immediate vicinity Eureka 0 Comment
  HSC17577  Rumex acetosella Norman H. Moe 1962-3-21 Humboldt Lanphere's Place Comment
  HSC17578  Rumex acetosella Allan R. Marshall 1962-5-22 30 Humboldt Back of Wildlife Building, HSU campus 30 Comment
  HSC17580  Rumex acetosella Elrid H. Spinas 1948-6-16 66 Humboldt Horse Mtn. Comment
  HSC70987  Rumex californicus Gail Newton 1980-7-20 1650 Humboldt Near Bell Swamps 1426 Comment
  CAS-BOT-BC421747  Rumex conglomeratus Henry M. Pollard 1945-8-24 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC421749  Rumex conglomeratus Malcom A. Nobs; S. Galen Smith 1949-8-9 1236 Humboldt On southern side of the town of Blue Lake Comment
  CAS-BOT-BC421523  Rumex crassus C. L. Hitchcock; J. S. Martin 1939-7-14 5438 Humboldt At Shelter Cove Comment
  HSC17616  Rumex obtusifolius Wm. F. Bowman 1968-11-20 Humboldt 4 mi. SE of Arcata, along Jacoby Creek Rd. Comment
  HSC99552  Rumex obtusifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 217 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC36319  Rumex persicarioides Thomas W. Nelson 1975-8-10 2242 Humboldt At Shively Comment
  RSA275410  Rupertia physodes Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-7-1 3573 Humboldt Along road 2S08 below Goat Hill. 1524 Comment
  HSC59504  Ruppia maritima M. A. Erickson 1979-5-23 305 Humboldt Arcata, creek adjacent to an abandoned logging pond at the S end of H St., Arcata Comment
  HSC63012  Salicornia depressa David Wheeler 1979-5-22 130 Humboldt Samoa, intersection of Samoa Blvd. and the railroad tracks near Arcata Redwood Co. Comment
  CDA15324  Salicornia perennis R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Near Loleta. 0 Comment
  CHSC79815  Salix alba Gordon Leppig; Sylvia Leppig, Kai Leppig 2000-4-16 1297 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, West bank of Hauser Marsh. UTM zone 10, N4525 E407. 1 Comment
  CAS-BOT-BC129886  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC103808  Salix exigua W. R. Dudley 1899-6-21 s.n. Humboldt Near forks of Eel River by Dyerville Comment
  CAS-BOT-BC103823  Salix exigua Harold E. Parks 1931-5-14 0964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  HSC99700  Salix exigua Glenn W. K. Shelton 2010-7-10 30 Humboldt Van Duzen River along State Rte. 36, 2 mi. W of Grizzly Creek Redwoods State Park, across from mile marker 15.00 91 Comment
  JEPS14753  Salix exigua Joseph P. Tracy 1932-6-14 10151 Humboldt at Willow Creek Trinity River Valley; Northern Coast Region 152 Comment
  SD989  Salix exigua var. hindsiana Harold E. Parks, Joseph P. Tracey 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  UC490567  Salix exigua var. hindsiana Joseph P. Tracy 1932-6-14 10149 Humboldt at Willow Creek Trinity River valley; Northern Coast Ranges 152 Comment
  CAS-BOT-BC104105  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01335 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107727  Salix hookeriana Harold E. Parks 1931-3-24 915 a Humboldt Trinidad 90 Comment
  CAS-BOT-BC107729  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Eel River, Fortuna 10 Comment
  CAS-BOT-BC107747  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1226 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  CAS-BOT-BC107749  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa, Humboldt Bay Comment
  CHSC9656  Salix hookeriana E. L. Smith 1971-8-18 1026 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  HSC96611  Salix hookeriana Gordon Leppig 2005-4-8 2209 Humboldt N spit, 200 m N of Samoa Bridge 4 Comment
  POM362590  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon. 0 Comment
  SBBG59112  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-7 1103 Humboldt Little River Lagoon Comment
  UC1196553  Salix hookeriana Joseph P. Tracy 1935-3-3 13714 Humboldt mouth of Mad R. 6 Comment
  UC1225926  Salix hookeriana Joseph P. Tracy 1947-6-28 17754 Humboldt Bridgeville Van Duzen River 198 Comment
  UC469124  Salix hookeriana Joseph P. Tracy 1929-4-7 8531 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470439  Salix hookeriana Joseph P. Tracy 1931-9-19 9679 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC481395  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (bank of river) 10 Comment
  UC492335  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1102 Humboldt Little River Lagoon Trinidad Comment
  UC506505  Salix hookeriana Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC511999  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1238 Humboldt floodplain of Van Duzen R. at Blue Slide 91 Comment
  RSA0034665  Salix hookeriana var. tomentosa Harold E. Parks 1931-5-12 0952 Humboldt Samoa, Humboldt Bay. 0 Comment
  HSC19978  Salix lasiandra J. W. Johnson 1962-3-7 1171 Humboldt Next to the barn of the Lanphere Farm, Samoa Peninsula Comment
  HSC37876  Salix lasiandra Thomas W. Nelson 1976-3-22 2278 Humboldt S side of the Eureka Muni Golf Course Comment
  UC1196577  Salix lasiandra subsp. lasiandra J. P. Tracy 1901-3-31 995 Humboldt immediate vicinity Eureka 0 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-BC128194  Salix lasiandra var. lasiandra Joseph P. Tracy 1933-7-16 12772 Humboldt South Fork Mountain, in wet meadow at McKay Camp 1676 Comment
  CAS-BOT-BC128200  Salix lasiandra var. lasiandra Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC107605  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-17 1329 Humboldt On west slpe of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  JEPS12923  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1933-3-19 11005 Humboldt near Bridgeville; Northern Coast Ranges 182 Comment
  UC1196657  Salix lasiolepis Joseph P. Tracy 1913-6-18 4197 Humboldt Dinsmore's Ranch Northern Coast Ranges, valley of Van Duzen River (opposite Buck Mt.) 762 Comment
  UC470409  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC481175  Salix lasiolepis Harold E. and Susan T. Parks 1931-8-15 1079 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 100 Comment
  UC481806  Salix lasiolepis H. P. Bracelin 1931-5-1 268 Humboldt Sylvandale, between Miranda and Meyers South Fork of Eel River Comment
  UC490546  Salix lasiolepis Joseph P. Tracy 1932-4-24 9806 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC490584  Salix lasiolepis Joseph P. Tracy 1932-6-4 10128 Humboldt Bridgeville 228 Comment
  UC504031  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1338 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River Comment
  UC506381  Salix lasiolepis Joseph P. Tracy 1933-2-26 10913 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC512031  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1328 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 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-BC107295  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01247 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107413  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-3-7 1527 Humboldt Stephens Grove on South Fork of Eel River 60 Comment
  POM214862  Salix lasiolepis var. sandbergii Joseph P. Tracy 1933-4-2 10959 Humboldt Berry's Mountain. On Trinity Hwy. E of Redwood Creek. 762 Comment
  RSA475257  Salix lucida subsp. lasiandra Lyman D. Benson 1929-7-15 1809 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC125627  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC125629  Salix melanopsis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 01252 Humboldt On floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  HSC20032  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy., 6 km S of Alton 20 Comment
  UC481169  Salix melanopsis Harold E. Parks 1931-8-25 1061 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC490568  Salix melanopsis Joseph P. Tracy 1932-7-31 10291 Humboldt Eel R. at mouth of Larrabee Creek; Northern Coast Ranges, Eel R. 60 Comment
  UC511986  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1242 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  UC519376  Salix melanopsis Joseph P. Tracy 1933-6-11 12552 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  SD977  Salix parksiana Harold E. Parks 1931-5-14 962 Humboldt Van Duzen River, between Alton and Carlotta, in river gravel. 14 Comment
  CAS-BOT-BC129207  Salix piperi Doris K. Kildale 1927-5-15 3291 Humboldt Mattole River Valley Comment
  HSC20076  Salix scouleriana J. P. Tracy 1932-7-13 10507 Humboldt Klamath Mtns., Trinity summit, Corral Prairie 1524 Comment
  JEPS13087  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  UC1196695  Salix scouleriana Joseph P. Tracy 1924-11-16 6921 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC490505  Salix scouleriana Joseph P. Tracy 1932-8-11 10338 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  CAS-BOT-BC126274  Salix sessilifolia Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River 90 Comment
  CAS-BOT-BC128951  Salix sitchensis L. R. Abrams 1916-7-11 6047 Humboldt In river gravel, mouth of Grizzly Creek on Van Duzen River Comment
  CHSC13719  Salix sitchensis E. L. Smith 1971-8-17 1020 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  HSC75494  Salix sitchensis J. O. Sawyer 1980-7-18 3636 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1225790  Salix sitchensis Joseph P. Tracy 1948-4-11 17972 Humboldt 3 mi. e. Dyerville (Eel R.); Eel R. 60 Comment
  HSC20133  Salix tracyi J. P. Tracy 1933-5-14 12178 Humboldt Trinity River Valley, mouth of Willow Creek 152 Comment
  CAS-BOT-BC235014  Sambucus L. R. Abrams 1916-7-18 6098 Humboldt Above road - Arcata to Trinidad Comment
  RSA1255  Sambucus callicarpa B. D. Stark 1929-7-24 1388 Humboldt 2 miles north of Arcata 30 Comment
  HSC57142  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-26 9926 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC58141  Sambucus nigra subsp. caerulea Gilbert Muth 1979-8-1 12164 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC58321  Sambucus nigra subsp. caerulea Overton, Butler 1979-8-2 12616 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC73873  Sambucus nigra subsp. caerulea M. A. Baker 1980-7-19 3020 Humboldt Near Bret Hole. 1814 Comment
  HSC34632  Sambucus racemosa var. racemosa R. M. Sullivan 1975-4-9 1 Humboldt 2 mi. S of Trinidad on old Hwy. 101 Comment
  HSC59203  Sambucus racemosa var. racemosa Terry Roth 1979-4-21 15 Humboldt 0.4 mi. from Table Bluffs County Park on Table Bluffs Rd. 15 Comment
  UC1225815  Sambucus racemosa var. racemosa Joseph P. Tracy 1941-3-9 16803 Humboldt near junction of South fork and main Eel River (along river); Camp Grant 60 Comment
  UC484082  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt along coastal bluffs 1 mi s Trinidad 91 Comment
  UCSB16744  Sambucus racemosa var. racemosa Muller, Katherine 1954-6-20 Humboldt 3 mi. S. of Scotia Comment
  CAS-BOT-BC157200  Sanguisorba officinalis L. B. Kildale 1930-7-11 10208 Humboldt Snow Camp head of Redwood Creek Comment
  HSC104438  Sanguisorba officinalis J. Martin, Bianca Hayashi, Cheri Sanville 2012-8-28 Humboldt Northern end of Christmas Prairie Lake Comment
  UC1199041  Sanguisorba officinalis subsp. microcephala Joseph P. Tracy 1938-9-25 16167 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  HSC26344  Sanicula arctopoides Thomas W. Nelson 1971-4-12 377 Humboldt S spit of Humboldt Bay. Comment
  HSC62749  Sanicula arctopoides J. M. DiTomaso 1979-4-21 897 Humboldt Cliffs above College Cove, Elks Head, Trinidad Comment
  HSC21622  Sanicula bipinnatifida Francis Winter 1960-4-24 Humboldt 1 mi. N of Redwood Creek Ranch 396 Comment
  HSC39448  Sanicula crassicaulis Linda M. Barker 1976-8-2 1669 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC68605  Sanicula crassicaulis Jacqueline Greenleaf 1980-8-5 282 Humboldt Near Dairy Creek. 1158 Comment
  HSC81674  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1980-7-13 6065 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  UC183568  Sanicula crassicaulis Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3599 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  HSC74223  Sanicula graveolens M. A. Baker 1980-7-19 3016 Humboldt Near Bret Hole. 1814 Comment
  UC642310  Sanicula graveolens Joseph P. Tracy 1929-7-4 8614 A Humboldt French Camp Ridge 1066 Comment
  UC1197088  Sanicula laciniata Joseph P. Tracy 1936-3-8 14776 Humboldt along South Fork of Eel River, Miranda South Fork Eel River; , Miranda 121 Comment
  UCD128031  Sanicula laciniata R. N. Raynor 1935-3-2 s.n. Humboldt Fort Seward. Comment
  UC1222809  Sanicula tracyi Joseph P. Tracy 1950-4-20 18606 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); along Van Duzen River, opposite Buck Mountain 762 Comment
  UC767191  Sanicula tracyi Joseph P. Tracy 1947-6-25 17717 Humboldt opposite Buck Mountain (along Van Duzen River, Dinsmore's); Van Duzen River, Dinsmore's 762 Comment
  UC1197078  Sanicula tuberosa Joseph P. Tracy 1918-5-28 4946 Humboldt Northern Coast Ranges, on Bald Mt., High Prairie High Prairie; Northern Coast Ranges, Bald Mt., High Prairie 1066 Comment
  UC562449  Sarcodes sanguinea Joseph P. Tracy Jul 16-19 1930 8943 Humboldt South Fork Mountain, near McKay Camp 1676 Comment
  UC1198879  Saxifraga californica Joseph P. Tracy 1927-4-2 7882 Humboldt facing South Fork Eel River ( Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  RSA30643  Saxifraga mertensiana Lincoln Constance, Reed C. Rollins 1942-5-11 2869 Humboldt 3 miles W of East Fork of Willow Creek. Comment
  SEINET3411481 Image available Saxifraga mertensiana Joseph P. Tracy 1922-4-30 6009 Humboldt Mouth of South Fork of Trinity river 152 Comment
  UC1198889  Saxifraga mertensiana Joseph P. Tracy 1932-4-24 9813 Humboldt between Miranda and Redway (South Fork Eel River); North Coast Ranges, South Fork Eel River 91 Comment
  UC1474277  Scilla hispanica M. S. Miller 1965-3-16 4 Humboldt Humboldt State College Campus Arcata (city of Arcata) Comment
  JEPS79980  Scirpus cernuus Joseph P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  UC1103630  Scirpus cernuus Joseph P. Tracy 1939-8-20 16433 Humboldt Big Lagoon 6 Comment
  CDA39126  Scirpus maritimus Gordon Leppig 1998-6-25 851 Humboldt Route 101, mile marker 81.60 Comment
  HSC15633  Scoliopus bigelovii D. E. Anderson 1963-3-23 2397 Humboldt Bald Mtn. Rd. Comment
  UCD139810  Scoliopus bigelovii R. N. Raynor 1935-5-22 s.n. Humboldt Ford Seward. Comment
  SEINET3991343  Scoliopus bigelovii Unknown 1950-4-20 18611 Humboldt One mile west of Dinsmore's; along Van Duzen river, opposite Buck Mountain 762 Comment
  HSC21127  Scrophularia californica R. I. Bonn 1965-5-9 44 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC21128  Scrophularia californica C. B. Wolf 1927-8-29 1207 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  SBBG52998  Scrophularia californica J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  HSC56459  Scutellaria antirrhinoides Griswold, Butler 1979-7-12 7236 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC1239697  Scutellaria antirrhinoides Joseph P. Tracy 1934-6-19 13238 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  BLMAR588  Scutellaria antirrhinoides Jennifer Wheeler 2010-7-13 588 Humboldt King range, Panther Gap Road 792 Comment
  RSA445331  Scutellaria siphocampyloides Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  UC154010  Scutellaria tuberosa Joseph P. Tracy Jul 27 1908-Jul 30 1908 2717 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC66821  Sedum laxum subsp. heckneri Gail Newton 1980-7-22 1659 Humboldt Near Devils Backbone 1554 Comment
  CAS-BOT-BC64750  Sedum oregonense Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 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
  HSC100455  Sedum spathulifolium Carl C. Marshall Jun 1887 471 Humboldt Rocks, S Humboldt. Comment
  JEPS117941  Selaginella kraussiana Dana York, Adrian York & Noah York 2011-4-2 3019 Humboldt Arcata, eastern edge of Humboldt State University Campus 70 Comment
  CAS-BOT-BC62181  Selaginella oregana Doris K. Kildale 1925-12-19 1471 Humboldt Camp Bauer - near Korbel on Mad River Comment
  HSC45074  Selaginella wallacei R. Sutherland 1978-4-22 1 .22478 Humboldt Along King's Crest Trail 1098 Comment
  HSC49795  Senecio elegans R. York 1979-5-18 300 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  HSC99425  Senecio integerrimus var. exaltatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-1 74 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
  HSC72692  Senecio integerrimus var. major Gail Newton 1980-6-24 562 Humboldt Near Ladder Rock 1570 Comment
  UC1199242  Senecio integerrimus var. major Joseph P. Tracy 1938-6-13 15914 Humboldt Cold Springs Grouse Mountain 1432 Comment
  HSC102520  Senecio integerrimus var. major M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1532 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC76417  Senecio jacobaea D. K. Imper 1981-7-21 888 Humboldt Near Table Bluff 38 Comment
  UCD135620  Senecio minimus Gilfillan 1921-8-16 s.n. Humboldt Eureka. Comment
  UC1199239  Senecio sylvaticus Joseph P. Tracy 1936-8-24 15172 Humboldt 6 mi se Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC128739  Senecio sylvaticus Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5446 Humboldt near Elk Prairie; north-western California Comment
  CAS-BOT-BC364329  Senecio triangularis Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC58000  Senecio triangularis G. L. Clifton, Griswold 1979-7-31 11780 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC82388  Senecio triangularis Thomas W. Nelson 1979-7-11 5030 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  HSC91941  Sequoia sempervirens E. Mackey 1987-2-5 Humboldt Patrick's Point State Park Comment
  JEPS46746  Sequoia sempervirens Willis G. Corbitt 1931-4-8 Humboldt Scotia Comment
  SDSU2018  Sequoia sempervirens Wayne A. Bemis 1963-11-29 245 Humboldt 1289 D St, Arcata. 55 Comment
  CDA14148  Setaria parviflora P. Haggard, G. Leppig 1998-2-4 Humboldt East of Arcata on North Bank Rd. above Mad River immed. E of Azalea Reserve. Stand approx. 25' in length, growing in recently disturbed area. Perennial, short-rhizomatous. 0 Comment
  UC170179  Sidalcea asprella Harley P. Chandler June, 1901 1438 Humboldt Klamath River North Coast Ranges, Klamath River Comment
  POM61723  Sidalcea malachroides Jos. Burtt Davy, Walter C. Blasdale 1899-6-13 5482 Humboldt Camp Grant Comment
  RSA168963  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19034 Humboldt Butter Valley Road, 2 miles east of Cameron Hill jct. near Kneeland. Comment
  RSA12518  Sidalcea malviflora subsp. asprella Carl B. Wolf 1934-7-3 5918 Humboldt 21 miles from Orick on Weitchpec Rd. common. 152 Comment
  HSC61193  Sidalcea malviflora subsp. nana Jimerson, J. Pageau 1979-5-24 473 Humboldt Near Orleans 226 Comment
  BLMAR281  Sidalcea malviflora subsp. patula Jennifer Anthony-Wheeler 1999-5-28 281 Humboldt King range, growing along windy pt rd about 1/2 way to the spring exclosure 140 Comment
  UC902190  Sidalcea oregana subsp. eximia Joseph P. Tracy 1949-8-11 18461 Humboldt Snow Camp 1432 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
  UC162882  Silene bridgesii Harley P. Chandler June, 1901 1505 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  CDA38659  Silene californica B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -C Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 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
  SEINET11933919  Silene californica F. H. Utech 1986-1 86 -414 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  UC1537312  Silene californica Gordon H. True Jr. 1936-5-11 454 Humboldt 10 mi w Miranda (Elk Ridge); , w of Miranda 457 Comment
  JEPS23253  Silene campanulata Joseph P. Tracy 1933-7-25 12871 Humboldt Grouse Mountain 1524 Comment
  HSC82410  Silene campanulata subsp. glandulosa Thomas W. Nelson 1979-7-11 5019 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC37960  Silene gallica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC4188  Silene gallica J. E. Lankila 1962-5-14 23 Humboldt W bank of river at Fernbridge Comment
  SEINET3823279 Image available Silene hookeri Joseph P. Tracy 1913-6-20 4234 Humboldt Lower foothills of Buck Mountain 762 Comment
  RSA168875  Silene hookeri subsp. bolanderi Joseph P. Tracy 1950-6-23 18880 Humboldt Burr Valley, on NW slope of Buck Mountain. 1067 Comment
  HSC4162  Silene laciniata subsp. californica G. N. Bos 1965-5-15 277 Humboldt Berry Summit near Hwy. 299 793 Comment
  UC1198793  Sisymbrium altissimum Joseph P. Tracy 1945-7-20 17515 Humboldt Eureka 30 Comment
  HSC44756  Sisyrinchium bellum Maralyn O'Meara 1972-6-8 83 Humboldt Along Bald Hills Rd. 16.4 mi. E of junction with Hwy. 101 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
  RSA245276  Sisyrinchium californicum Brad W. Klipfel 1973-8-17 271 Humboldt Big Lagoon Park, north of Trinidad Comment
  RSA699282  Sisyrinchium californicum J. R. Bruff 1930-08 s.n. Humboldt North of Trinidad Comment
  JEPS62108  Smilacina racemosa W. L. Jepson 1902-7-24 2114 Humboldt 1/2 mi below summit; Trinity Summit 2133 Comment
  UC1197798  Smilacina racemosa Joseph P. Tracy 1914-5-17 4474 Humboldt Cumens claim Northern Coast Region, region about Humboldt Bay (on ridge between Ryans Slough and Freshwater Creek) 304 Comment
  HSC67842  Solanum americanum J. P. Smith 1971-10-9 5002 Humboldt Mad River above the Fish Hatchery. Comment
  UC1196149  Solanum americanum Joseph P. Tracy 1919-9-13 5202 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC78987  Solanum aviculare L. P. Janeway 1984-5-16 803 Humboldt N spit of Humboldt Bay alongside dirt rd. on S side of Coast Guard Station 3 Comment
  UC750870  Solanum furcatum E. F. Paddock 1947-7-13 163 Humboldt Trinidad, near boat landing Trinidad Comment
  JEPS11997  Solanum umbelliferum Joseph P. Tracy 1937-7-24 15528 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  CAS-BOT-BC154216  Solanum umbelliferum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1219 Comment
  RSA46833  Solidago canadensis subsp. elongata Doris K. Kildale 1926-6-28 2180 Humboldt Big Lagoon Bluffs. Comment
  CAS-BOT-BC365433  Solidago elongata Doris K. Kildale 1926-8-17 1211 Humboldt Trinity Summit 1828 Comment
  UC581769  Solidago elongata Joseph P. Tracy 1937-8-12 15654 Humboldt Snow Camp 1402 Comment
  RSA286358  Solidago spathulata R. F. Thorne 1974-7-29 45070 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UC1199319  Solidago spathulata J. P. Tracy 1900-7-4 885 Humboldt opposite Eureka (Samoa); Samoa Comment
  HSC78964  Soliva sessilis L. P. Janeway, K. Berg 1984-4-11 721 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  CAS-BOT-BC374426  Sonchus asper Joseph P. Tracy 1936-8-24 15177 Humboldt Fickle Hill, 6 miles Southeast of Arcata 609 Comment
  HSC56199  Sorbus scopulina Gilbert Muth 1979-8-1 12165 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC672885  Sparganium emersum var. emersum Joseph P. Tracy 1928-9-2 8499 Humboldt near Fruitland 609 Comment
  HSC89261  Spartina alterniflora Anni Eicher 1989-4-20 366 Humboldt .5 mi. N of Samoa-Eureka bridge, E of State Hwy. 255, Humboldt Bay Comment
  SJSU7903  Spartina spartinae H. T. Harvey 1977-7-5 599 Humboldt tidal salt marsh, Elk River Spit, southerly outskirts of Eureka, Humboldt Bay Comment
  HSC95590  Spergularia canadensis var. occidentalis Andrea Pickart 2002-7-19 181 Humboldt Arcata Marsh at end of I St. 0 Comment
  CAS-BOT-BC149618  Spiraea douglasii Malcom A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  UC14209  Spiraea douglasii Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  UC719818  Spiraea douglasii Rogers McVaugh 1941-8-3 6216 Humboldt ca 1.25 mi s Patrick's Point State Park, Headquarters Comment
  UC1225876  Spiranthes porrifolia Joseph P. Tracy 1942-6-15 17154 Humboldt Garberville 152 Comment
  HSC16660  Spiranthes romanzoffiana D. E. Anderson 1961-9-13 1807 Humboldt Big Lagoon County Park Comment
  HSC100156  Spirodela polyrhiza Kenneth Clark 1979-4-21 148 Humboldt Off of Cranell Rd., 50 ft. E of Hwy. 101 Comment
  UC963853  Stachys ajugoides var. ajugoides H. E. Parks and S. T. Parks August, 1943 24252 Humboldt Spruce Cove North Coast Ranges, Trinidad 60 Comment
  UC708096  Stachys ajugoides var. rigida C. V. Piper 1921-5-22 Humboldt Eureka Comment
  UCLA70873  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UCLA71116  Stachys ajugoides var. rigida H. Lewis 1940-7-2 Humboldt Stone Lagoon Comment
  JEPS63031  Stachys ajugoides var. rigida Frank W. Peirson 1926-7-12 7034 Humboldt near bridge over Redwood Creek (Orick) Comment
  UC668219  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15937 Humboldt vicinity Carlotta 30 Comment
  HSC40957  Stachys chamissonis Linda M. Barker 1976-8-24 1683 Humboldt 3 mi. W of Arcata Comment
  UCR122361  Stachys mexicana George K. Helmkamp, E. A. Helmkamp 2001-7-8 6983 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
  UCR30858  Stachys rigida var. quercetorum A. C. Sanders 1981-8-6 2310 Humboldt Russ Park, City of Ferndale 46 Comment
  HSC56439  Stellaria calycantha Griswold, Butler 1979-7-12 7168 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1103548  Stellaria media Joseph P. Tracy 1913-6-14 4124 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  BLMAR188  Stellaria nitens Donald Hazlett 1994-6-7 188 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC32339  Stipa lemmonii D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5642 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC70964  Stipa lemmonii Gail Newton 1980-7-15 1584 Humboldt Near Sims Mtn. 1311 Comment
  CDA25184  Streptanthus tortuosus var. tortuosus Kaylea Eickhoff, Cara M. Witte 2005-6-8 4 Humboldt Northwestern California; 1.7 miles south of Highway 299 on Titlow Hill Road. Comment
  HSC39681  Streptanthus tortuosus var. tortuosus Thomas W. Nelson 1976-6-16 2741 Humboldt Just W of Alder Springs. 1524 Comment
  HSC58158  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-8-2 12218 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC1198649  Swertia albicaulis var. nitida Joseph P. Tracy 1911-7-6 3359 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC35348  Symphoricarpos albus var. laevigatus A. M. Montalvo, J. D. Ackerman 1975-6-22 481 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC99624  Symphoricarpos albus var. laevigatus Thomas W. Nelson, James Nelson 1975-9-3 2196 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  JEPS12883  Symphoricarpos albus var. laevigatus Lincoln Constance 1934-6-4 821 Humboldt Look Prairie South Fork Eel River, Bull Creek Region (and Bull Creek road to Dyerville) Comment
  UC169337  Symphoricarpos albus var. laevigatus Joseph P. Tracy 1908-6 2883 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC99166  Symphyotrichum chilense Carl B. Wolf 1937-9-9 9312 Humboldt North Coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 304 Comment
  UCD150385  Symphyotrichum lentum William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  UC774604  Symphyotrichum subspicatum Carl B. Wolf 1937-9-14 9355 Humboldt 4 mi n, Redwood Highway Loleta 7 Comment
  RSA46853  Symphytum asperum Doris K. Kildale 1927-6-26 3588 Humboldt Wildcat Grade near Ferndale. Comment
  UC1198057  Synthyris reniformis Joseph P. Tracy 1930-6-15 Humboldt Larrabee Creek near Bosworth's; Northern Coast Ranges 457 Comment
  HSC21154  Synthyris reniformis D. E. Anderson 1965-4-24 3542 Humboldt 0.5 mi. from Jct. 299 along Titlow Hill Rd. Comment
  UC249515  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
  UC27647  Synthyris reniformis C. C. Marshall 1887-1-7 Humboldt hills near Mad River 609 Comment
  HSC90250  Tanacetum bipinnatum Jean Hanson 1980-5-24 58 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  SEINET4016798  Tanacetum camphoratum O. M. Clark 1932-1 663 Humboldt North Eureka. Comment
  RSA424923  Tanacetum douglasii R. D. Goeden, D. W. Ricker 1987-9-2 17 Humboldt Loleta, at bay on Cannibal Road. 3 Comment
  CAS-BOT-BC376895  Taraxacum officinale Doris K. Kildale 1926-5-24 1683 Humboldt Ryan Slough near Occidental Ranch Comment
  CAS-BOT-BC85214  Taxus brevifolia Doris K. Kildale 1926-8-31 2601 Humboldt Union Mattole - Geo. 7 Niner Ranch, Mattole River Valley Comment
  HSC1590  Taxus brevifolia J. P. Tracy 1927-3-27 7866 Humboldt Willow Creek Canyon 762 Comment
  HSC56324  Tellima grandiflora Overton, Butler 1979-8-2 12666 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA24202  Tellima grandiflora Carl B. Wolf 1941-3-3 9994 Humboldt N. Coast Range. 7.5 mi. N. of Ettersburg on rd. to Honeydew. 305 Comment
  UCD170789  Tellima grandiflora Gordon Leppig; Sylvia Leppig and Kai Neander 1998-5-6 745 Humboldt Rt. 101. Overlooking Big Lagoon. 40 Comment
  UC160922  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1908-6 2769 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS79992  Thermopsis gracilis Joseph P. Tracy 1929-7-4 8612 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UC1222645  Thlaspi californicum Joseph P. Tracy 1951-5-20 19405 Humboldt at serpentine rockpile toward Ashfield Butte Kneeland Prairie; , toward Ashfield Butte 762 Comment
  UC1198812  Thlaspi montanum var. montanum Joseph P. Tracy 1911-7-11 3516 Humboldt hills along Supply Creek (Hupa Valley); Northern Coast Ranges, , Supply Creek 304 Comment
  HSC1301  Thuja plicata Allan R. Marshall 1962-5-20 23 Humboldt Blue Lake along Hwy. 299 46 Comment
  NY17200  Thuja plicata I. L. Wiggins 1955-7-31 13594 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
  POM160766  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North fork of Mad River. 305 Comment
Read comments
Jul 25 2018
  UCD134040  Thuja plicata Roman Gankin 1965-8-7 562 Humboldt Near edge of sphagnum bog just north of parking area; Big Lagoon County Park. Comment
  UCR3547  Thuja plicata David Whistler, H. M. Whistler 1964-8-1 640801- 6 Humboldt US Hwy 299, 9 mi east of Blue Lake. Comment
  HSC64218  Tiarella trifoliata var. unifoliata J. O. Sawyer, M. A. Ericksen 1979-6-23 3383 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UCR64482  Tiarella trifoliata var. unifoliata Lyman Benson 1928-7-11 454 Humboldt Dyerville, Bull Creek, S. Fork Eel River, Bull Creek Flat. 120 Comment
  JEPS49709  Tiarella trifoliata var. unifoliata W. L. Jepson 1927-7-3 12359 Humboldt near Dyerville (Bull Creek); South Fork Eel River, Bull Creek Comment
  SEINET3888616  Tofieldia occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt Snow Camp (Mts. E. of Korbel). Near small lake.; 0 1372 Comment
  UC180222  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1914-9-6 4606 Humboldt near Seidell Ranch (peat bog); Bald Mountain, between High Prairie and Snow Camp Comment
  UC30084  Tofieldia occidentalis subsp. occidentalis Mrs. M. H. Manning Aug 1899 Humboldt Comment
  UC154137  Tolmiea diplomenziesii Joseph Burtt Davy and Walter C. Blasdale 1899-5 5628 Humboldt Bald Mt.; North Coast Ranges Comment
  UC1198061  Tonella tenella Joseph P. Tracy 1908-6-9 2660 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  BLMAR192  Torilis arvensis Donald Hazlett 1994-6-7 192 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  SD148260  Torilis arvensis G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6986 Humboldt North coast redwood area; California Highway 36, along the Van Duzen River, 19.6 miles east of U. S. 101. 136 Comment
  POM256868  Torilis arvensis Archie Cathey 1938-7-30 s.n. Humboldt At Cathey Ranch, Miranda 152 Comment
  CHSC33049  Torilis arvensis subsp. arvensis Thomas Nelson; Jane Nelson 1978-7-2 4387 Humboldt Along highway 36 ca. 1 mile east of Grizzly Creek. Comment
  JEPS14254  Torilis arvensis subsp. arvensis Mrs. Archie Cathey 1938-7-30 Humboldt Miranda at Cathey Ranch 152 Comment
  CAS-BOT-BC169180  Toxicodendron diversilobum Doris K. Kildale 1926-9-9 2676 Humboldt Van Duzen River between Sting's Station & Bridgeville, Bar W Ranch 158 Comment
  HSC63227  Toxicodendron diversilobum M. A. Baker 1978-6-6 465 Humboldt Weitchpec Comment
  UC169891  Toxicodendron diversilobum Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5426 Humboldt between Hubbard's Station and Elk Prairie; North Coast Ranges Comment
  UC1199328  Tracyina rostrata Joseph P. Tracy 1938-6-9 15975 Humboldt about 1 mi sw Alder Point (town) 304 Comment
  HSC99835  Triantha occidentalis subsp. occidentalis T. Jimerson, J. Pageau 1979-8-10 728 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC49054  Trichostema lanceolatum Patricia Shesgreen 1978-7-30 122 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  UCLA30918  Trichostema laxum Harlan Lewis 1955-7-19 Humboldt 0.1 mi W of Trinity County line on State Highway 36 Comment
  UC177169  Trientalis latifolia Joseph P. Tracy 1913-6-25 4341 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC1197221  Trifolium albopurpureum var. olivaceum J. P. Tracy 1901-4-24 1040 Humboldt immediate vicinity Eureka 0 Comment
  UC1103434  Trifolium barbigerum Joseph P. Tracy 1912-5-12 3635 Humboldt Eureka Northern Coast Ranges Comment
  HSC45115  Trifolium bifidum R. Sutherland 1978-5-19 14 .19578 Humboldt 134 Comment
  UC179920  Trifolium campestre Joseph P. Tracy 1914-7-4 4523 Humboldt Between Korbel and Angels Ranch Northern Coast Ranges 457 Comment
  UC33309  Trifolium cyathiferum W. C. Blasdale 1896-6-8 Humboldt Graham's Rage Comment
  HSC45105  Trifolium dubium R. Sutherland 1978-5-17 2 .17578 Humboldt 305 Comment
  RSA21098  Trifolium eriocephalum subsp. eriocephalum Carl B. Wolf 1937-6-14 8826 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  BLMAR736  Trifolium fucatum Jennifer Wheeler 2015-5-8 736 Humboldt Larabee Butte, at Butte Creek Access Rd off Hwy 36 in drainage ditches 722 Comment
  UC1197022  Trifolium fucatum Joseph P. Tracy 1906-6-10 2470 Humboldt nw slope Wragletown (lower foot); Northern Coast Ranges 152 Comment
  UC495732  Trifolium fucatum Joseph P. Tracy 1927-6-5 8100 Humboldt s Yager Creek (valley); Northern Coast Ranges 762 Comment
  UC1197188  Trifolium gracilentum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3602 Humboldt near Hydesville; Northern Coast Region Comment
  UC33399  Trifolium macraei W. C. Blasdale 1896-6-7 Humboldt Graham's Ranch Comment
  UC1223355  Trifolium microcephalum Joseph P. Tracy 1939-4-29 16237 1/2 Humboldt mouth of Slate Creek (banks of Klamath River) Comment
  HSC15150  Trifolium microdon J. W. Johnson 1962-6-4 1430 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC95073  Trifolium microdon Andrea Pickart 2002-7-3 154 Humboldt Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  UC160940  Trifolium microdon J. P. Tracy 1900-5-28 822 Humboldt Eureka vicinity 0 Comment
  UC1223330  Trifolium pratense Joseph P. Tracy 1941-8-23 16995 Humboldt Eureka Comment
  HSC45167  Trifolium repens R. Sutherland 1978-5-16 8 .16578 Humboldt 157 Comment
  CDA28058  Trifolium variegatum var. major T. C. Fuller 1958-6-17 614 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  UC1223530  Trifolium variegatum var. melananthum Joseph P. Tracy 15374 Humboldt opposite Willow Creek (same place as no. 15331 and 15331 1/2); Trinity River Valley Comment
  UC1197560  Trifolium variegatum var. variegatum Joseph P. Tracy 1927-5-8 7993 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC16760  Trifolium willdenovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5874 Humboldt Martin's Ferry Comment
  UC16761  Trifolium willdenovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5342 d Humboldt Harris Comment
  UC1197522  Trifolium willdenovii Joseph P. Tracy 1914-7-5 4557 Humboldt High Prairie Northern Coast Ranges, Bald Mtn 1066 Comment
  UC1197536  Trifolium willdenovii Joseph P. Tracy 1906-6-4 2534 Humboldt near Hydesville (Yager Creek); Northern Coast Region 60 Comment
  UC495686  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork of Eel River (Miranda); Northern Coast Ranges 121 Comment
  UCD109887  Trifolium willdenovii Tofsrud 1948-1 s.n. Humboldt location unknown. Comment
  UC16825  Trifolium wormskioldii Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5600 Humboldt Arcata Comment
  JEPS37724  Trifolium wormskioldii Joseph P. Tracy 1918-7-3 4991 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  UC1197036  Trifolium wormskioldii Joseph P. Tracy 1917-7-8 4827 Humboldt near Newell's Camp (Old Kneeland Prairie Rd on beaten path); Northern Coast Ranges 457 Comment
  CAS-BOT-BC451808  Triglochin maritima Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  HSC14169  Triglochin maritima D. E. Anderson 1961-9-3 1779 Humboldt Along Hwy. 101 Comment
  UC175282  Trillium albidum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3616 Humboldt near Hydesville Hydesville; Northern Coast Region 30 Comment
  SEINET3991344  Trillium chloropetalum Unknown 1950-4-20 18615 Humboldt Buck Mountain, lower foothills of its N. W. slope, 2 mi W of Dinsmore's 762 Comment
  UC667136  Trillium chloropetalum Joseph P. Tracy 1937-4-3 15242 Humboldt Willow Creek Trinity R. Valley, Willow Creek 152 Comment
  CAS-BOT-BC133391  Trillium ovatum Alice Eastwood; John Thomas Howell 1934-4-11 1330 Humboldt Patrick's Point Comment
  CHSC3179  Trillium ovatum Robert D. Briggs 1966-4-2 R- 144 Humboldt Eight miles east of Blue Lake on State hwy. 299. Comment
  HSC41250  Trillium ovatum Brad Klipfel 1974-5-27 397 Humboldt Horse Mtn. Comment
  HSC15702  Trillium ovatum K. P. St. John 1965-4-24 42 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  UCD19981  Trillium ovatum C. H. Lamoureux; R. Gankin 1956-3-17 1042 Humboldt Near southern boundary of Jensen Grove, on Hwy 101 between Meyers and Miranda. Comment
  UC169338  Triodanis biflora Joseph P. Tracy 1905-6-25 2198 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC103298  Triphysaria pusilla Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3009 Humboldt Six Rivers National Forest; ~ 0.3 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1386 Comment
  HSC41654  Triphysaria pusilla J. O. Sawyer 1977-4-23 3044 Humboldt Road separator between Hwy. 101 and parking area at scenic overlook N of McKinleyville Comment
  HSC20860  Triphysaria versicolor subsp. faucibarbata C. O. Baker 1962-5-7 36 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  UC902246  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17468 Humboldt Eureka 6 Comment
  UC1237958  Triphysaria versicolor subsp. versicolor John Weiler and A. P. Nelson May 26 1961-May 29 1961 61161 Humboldt on U.S. Highway 101, 3.1 mi s Arcata Comment
  RSA10052  Trisetum canescens Joseph P. Tracy 1926-5-22 7502 Humboldt Northern Coast Ranges, Prairie Creek. 152 Comment
  HSC13416  Trisetum cernuum J. A. Waller 1965-5-16 39 Humboldt Open field near Big Lagoon. Comment
  HSC91881  Trisetum cernuum E. Mackey 1986-10-7 Humboldt Partick's Point State Park. Comment
  UC682073  Trisetum cernuum G. L. Stebbins Jr. and G. L. Church 1941-5-26 3107 Humboldt 5 mi n Orick (on U.S. Hwy 101) Comment
  UCD93899  Trisetum cernuum Harley P. Chandler 1901-5-1 1176 Humboldt Humboldt Bay. 30 Comment
  UCD93905  Trisetum cernuum A. H. Murphy 1951-5-15 37 Humboldt Toston Ranch, 3 miles west of Miranda. Comment
  HSC53803  Triteleia hyacinthina Griswold, Butler 1979-7-10 6233 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC3039  Triteleia hyacinthina D. E. Anderson 1965-5-15 3698 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. 198 Comment
  UC666905  Triteleia hyacinthina Joseph P. Tracy 1937-7-19 15451 Humboldt lower foothills nw slope Buck Mountain; lower foothills nw slope Buck Mountain 762 Comment
  UC666915  Triteleia hyacinthina Joseph P. Tracy 1930-7-6 8843 Humboldt in moist places Kneeland Prairie Comment
  SEINET181190  Triteleia laxa Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15085 Humboldt 5 miles north of Garberville Comment
  UC666899  Triteleia laxa Joseph P. Tracy 1930-7-6 8841 Humboldt Kneeland Prairie 762 Comment
  UC422834  Triteleia laxa P. E. Goddard 1907-5-29 b. 110 Humboldt Van Duzen Comment
  SEINET200846  Triticum aestivum J. P. Tracy 1922-7-16 6102 Humboldt CULTIVATED; Eureka 0 Comment
  SDSU2008  Tsuga heterophylla D. F. Howe 1963-7-7 3616 Humboldt 5 miles north of Orick on #101. Comment
  HSC63002  Typha latifolia David Wheeler 1979-5-29 145 Humboldt S end of H St., Arcata. Comment
  UC153975  Typha latifolia Joseph P. Tracy 1910-10-8 3168 Humboldt region about Humboldt Bay Brainard's Point; Northern Coast Region, region about Humboldt Bay 0 Comment
  UCD108651  Ulex europaeus E. N. Gladish 1957-8-12 49 Humboldt Five miles southeast of Maple Creek. Comment
  HSC41923  Umbellularia californica Ed Cope 1977-4-23 25 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC46102  Umbellularia californica J. P. Smith, J. O. Sawyer 1975-4-6 8058 Humboldt N of Briceland on rd. to Hwy. 101 Comment
  SEINET12102554  Umbellularia californica E. H. Graham 1931-1 6960 Humboldt Along highway near Garberville Comment
  POM87676  Urtica dioica subsp. gracilis L. R. Abrams, R. C. Bacigalupi 1922-6-25 8278 Humboldt Big Lagoon, south of Orick. Comment
  UC1225782  Urtica urens Joseph P. Tracy 1944-6-10 17476 Humboldt Eureka 30 Comment
  HSC24670  Utricularia macrorhiza W. B. Strickland 1968-3-28 Humboldt McClellan Mtn. Rd., off Hwy. 36 above Bridgeville 457 Comment
  HSC39935  Vaccinium cespitosum J. O. Sawyer 1970-6-24 2285 Humboldt Near Waterdog Lakes 1860 Comment
  UC562347  Vaccinium cespitosum Joseph P. Tracy 1933-7-16 12792 Humboldt near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC1225911  Vaccinium membranaceum Joseph P. Tracy 1942-6-23 17243 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC199304  Vaccinium ovatum Doris K. Kildale 1927-3-25 3008 Humboldt Humboldt Hill near Bucksport School House 15 Comment
  CAS-BOT-BC199316  Vaccinium ovatum P. C. Everett; E. K. Balls 1959-10-26 23974 Humboldt 4 mi. se. from Honeydew along Old Coast Road to Ettersburg 457 Comment
  CHSC67763  Vaccinium ovatum Vernon H. Oswald 1997-2-12 8307 Humboldt North Coast of Calif. South end of Trinidad State Beach, town of Trinidad. 30 Comment
  HSC28133  Vaccinium ovatum J. D. Ackerman, A. M. Montalvo 1973-3-27 45 Humboldt 1.5 mi. N of Manila Comment
  POM285981  Vaccinium ovatum Lyman Benson 1929-7-16 1837 Humboldt Weott Ranger Station. Comment
  UC1225908  Vaccinium ovatum Joseph P. Tracy 1943-3-14 17409 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  UC412666  Vaccinium ovatum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC630486  Vaccinium ovatum H. E. and S. T. Parks Apr 1937 5638 Humboldt Spruce Cove Trinidad Comment
  UCD118087  Vaccinium ovatum B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  CAS-BOT-BC199410  Vaccinium parvifolium Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  POM131975  Vaccinium parvifolium Joseph P. Tracy 1918-4-21 4879 Humboldt Near Newells old camp, Kneeland Prairie Road. Comment
  UC22217  Vaccinium parvifolium Harley P. Chandler May 1901 1182 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC562494  Vaccinium parvifolium Joseph P. Tracy 1927-5-15 8057 Humboldt On road west from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  SD257259  Vaccinium parvifolium Jim R. Shevock 1972-3-26 1470 Humboldt Along Highway 299. 366 Comment
  HSC82400  Vaccinium uliginosum Thomas W. Nelson 1979-7-11 5014 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1239593  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1937-7-29 15573 Humboldt in meadow at McKay Camp South Fork Mountain 1676 Comment
  HSC74321  Vancouveria hexandra Gail Newton 1980-7-20 1637 Humboldt Near Bell Swamps 1426 Comment
  HSC67545  Vancouveria planipetala J. P. Smith, Steve Selva 1970-6-14 3835 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  CAS-BOT-BC528851  Veratrum californicum Joseph P. Tracy 1934-6-21 13244 Humboldt Local in wet place at Still Ranch 2 mi. S of Fields Landing (exterminated there about 1937) 6 Comment
  HSC15732  Veratrum insolitum L. K. Weld 1967-7-17 22 Humboldt 0.5 mi. SE of Indian Field Ridge off Hwy. 299 Comment
  HSC98931  Veratrum viride Cara Witte 2007-7-19 549 Humboldt Forest Service Road 4N32. 1.5 miles east of intersection with 4N70. Grouse Mountain Lookout. 1547 Comment
  SDSU11035  Verbascum thapsus Harvey 1938-8-14 2322 Humboldt Trinity River. US 299. Comment
  UC1225827  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1948-8-8 18090 Humboldt Iaqua School House Comment
  CDA30190  Veronica americana M. K. Beyers, I. Shepardson 2009-9-13 241 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
  HSC23729  Veronica americana Tim Baroni 1971-7-6 128 Humboldt 15 mi. S of Ferndale on Mattole Rd. Comment
  HSC59134  Veronica americana Terry Roth 1979-5-29 102 Humboldt Glendale exit off Hwy. 299, gravel road towards Mad River, near Mad River 30 Comment
  UCD124661  Veronica americana Malcolm A. Nobs; S. Galen Smith 1949-8-9 1227 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  RSA12557  Veronica americana Carl B. Wolf 1934-7-2 5882 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  UC1011936  Veronica americana F. W. Pennell and J. P. Tracy 1940-7-7 26088 Humboldt headwaters of Willow Creek, Route 299 Willow Creek 762 Comment
  HSC92212  Veronica anagallis-aquatica D. E. Anderson, Thomas W. Nelson 1972-5-9 Humboldt Just W of Weitchpec on the road to Pecwan Comment
  UC176952  Veronica arvensis Joseph P. Tracy 1913-6-17 4154 Humboldt on nw slope of Buck Mountain (Burr Valley, at Sheep Camp); Northern Coast Ranges, , Burr Valley 1066 Comment
  UC582552  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1935-5-25 13832 Humboldt Fort Seward 106 Comment
  HSC21213  Veronica persica R. A. Eagle 1964-4-15 32 Humboldt Just off campus of HSC near elementary school Comment
  HSC100686  Veronica serpyllifolia Carl C. Marshall Apr 1885 74 Humboldt Ditches about the bay. Comment
  CDA41766  Veronica serpyllifolia subsp. humifusa P. Haggard 1998-6-12 s.n. Humboldt North Coast Ranges; Town of Fieldbrook. 0 Comment
  JEPS12698  Viburnum ellipticum P. E. Goddard 1908-7-20 Humboldt 1 mi s Harris Comment
  RSA800193  Vicia Robert F. Thorne, Percy C. Everett 1965-8-8 35242 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC40041  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1976-7-1 2893 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC58157  Vicia americana var. americana G. L. Clifton, Griswold 1979-8-2 12211 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC98614  Vicia americana var. americana Cara Witte 2008-7-2 803 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC303185  Vicia benghalensis Joseph P. Tracy 1924-6-28 6701 Humboldt Hydesville; Northern Coast Ranges 91 Comment
  JEPS66185  Vicia hirsuta Joseph P. Tracy 1916-5-31 4689 Humboldt Stitz Creek Northern Coast Ranges, Eel River (along the Eel River from South Fork to Scotia) 60 Comment
  RSA755059  Vicia hirsuta Robert F. Thorne, Percy C. Everett 1965-8-8 35266 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  RSA91239  Vicia hirsuta F. W. Peirson 1923-7-11 3630 Humboldt Flats north of Eureka Comment
  HSC71615  Vicia sativa subsp. nigra J. P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC95677  Vicia sativa subsp. nigra Steven Lee 2004-4-11 15 Humboldt Scenic Dr., about 1 mi. N of Westhaven Exit off Hwy. 101, 1 from Houda Point. Comment
  RSA77779  Viola adunca F. W. Peirson 1926-7-12 7028 Humboldt West slope of Coast Range back of Orick. Comment
  HSC34157  Viola glabella Linda M. Barker 1974-5-11 178 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  CAS-BOT-BC536498  Viola glabella Alice Eastwood 1907-4-21 26 Humboldt Trinidad Comment
  RSA77758  Viola hallii Joseph P. Tracy 1927-6-12 8125 Humboldt Horse Mountain. 1524 Comment
  UC66206  Viola ocellata Mrs. M. H. Manning June 1902 Humboldt Hupa Comment
  UC1198451  Viola ocellata Joseph P. Tracy 1919-5-31 5163 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  CHSC68506  Viola odorata Vernon H. Oswald 1997-4-10 8329 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  HSC48776  Viola palustris Brad Klipfel 1974-4-27 341 Humboldt Along the SW side of Big Lagoon Comment
  HSC51328  Viola purpurea subsp. purpurea G. L. Clifton, Overton 1979-6-3 3762 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  HSC59449  Viola sempervirens Kenneth Clark 1979-3-31 2 Humboldt 0.7 mi. E of the end of Granite Ave., Arcata 46 Comment
  JEPS80009  Viola sheltonii Joseph P. Tracy 1933-7-16 12769 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  POM183574  Vulpia bromoides R. I. Bonn 1965-5-7 21 Humboldt Four miles west of Arcata on Lamphere Rd. Comment
  SEINET200330 Image available Vulpia microstachys var. pauciflora Joeseph P. Tracy 4463 Humboldt Fort Seward 122 Comment
  HSC71646  Vulpia myuros J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9930 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  HSC24380  Whipplea modesta J. O. Sawyer 1970-6-24 2242 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC45649  Whipplea modesta Diane L. Reed 1978-4-22 9 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  JEPS49626  Whipplea modesta W. L. Jepson 1932-7-26 16400 Humboldt Bull Creek Comment
  HSC28932  Woodwardia fimbriata Diane Johnson 1972-12-4 Humboldt Butler Valley near Big Bend Rd. Comment
  CAS-BOT-BC77814  Woodwardia fimbriata Kenneth Clark 1980-6-14 678 Humboldt north fork Dead Man's Gulch 83 Comment
  SEINET11799538  Wyethia angustifolia L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, E of Dinsmore in Six Rivers National Forest Comment
  JEPS13755  Wyethia longicaulis Frank W. Gould 1939-5-29 841 Humboldt Horse Mountain 914 Comment
  CAS-BOT-BC326978  Wyethia longicaulis Volney Rattan 1883-6-1 s.n. Humboldt North east of Mad River Comment
  HSC53967  Xerophyllum tenax Griswold, Butler 1979-7-11 7023 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC72906  Xerophyllum tenax M. A. Baker 1980-6-16 1951 Humboldt Near Onion Mtn. 1280 Comment
  UC1197336  Yabea microcarpa J. P. Tracy 1901-5-18 1100 Humboldt opposite Eureka (Sand Hills of Ocean Beach at Samoa); Samoa Comment
  HSC3245  Zantedeschia aethiopica A. H. Teshima 1963-3-17 12 Humboldt Moonstone Beach Area Comment
  UCSB26612  Zeltnera muehlenbergii Havlik, Neil 1968-8-22 Humboldt Bull Creek Flat; Humboldt Redwoods State Park Comment
  HSC31209  Zigadenus micranthus D. E. Anderson 1972-6-20 5741 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment



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