Search Results — 2000 specimen records retrieved (1373 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=HUMBOLDT; Source=All;   

Mapping Options:

BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

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

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

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  BLMAR207  Abies concolor Jennifer Anthony-Wheeler 1996-7-9 207 Humboldt Pilot ridge., growing as component of conifer mxed hardwood forest ar elevation range 1280 Comment
Read comments
Nov 1 2013
  HSC72810  Abies concolor M. A. Baker 1980-6-28 2495 Humboldt Near Mad River Buttes 1445 Comment
  OBI36630  Abies grandis David J. Keil 1983-7-2 17304 Humboldt Patrick's point Comment
  UC1134161  Abies grandis G. T. Nordstrom 1937-7-1 1420 Humboldt 2.5 mi ne Orick; Orick Quad. 152 Comment
  UC1193117  Abies grandis P. J. Zinke 1950-9-21 163 Humboldt Salmon Creek 1 mi upstream from Mill Creek Salmon Creek, Quad. 29C1 152 Comment
  UC213003  Abies grandis Joseph P. Tracy 1919-4-6 5125 Humboldt Humboldt Hill Northern Coast Region, Humboldt Bay, Humboldt Hill 152 Comment
  HSC41125  Abronia latifolia Thomas W. Nelson, Jane Nelson, James Nelson 1976-9-26 3266 Humboldt Along beach S of Fern Canyon. Comment
  UC668177  Acer circinatum Joseph P. Tracy 1933-5-21 12213 Humboldt 5 mi e Bridgeville (McClellan Mountain); McClellan Mountain 670 Comment
  CAS-BOT-BC331593  Acer macrophyllum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  JEPS42651  Acer macrophyllum W. L. Jepson 1932-7-30 16448 Humboldt near Big Tree; Bull Creek, near Big Tree 121 Comment
  SEINET3098689 Image available Acer macrophyllum Joseph P. Tracy 1914-6-7 4493 Humboldt REgion about Humboldt Bay; valley of North Fork of Elk River. 0 Comment
  CAS-BOT-BC28590  Achillea millefolium Ira L. Wiggins 1940-7-10 9485 Humboldt Big Lagoon Comment
  HSC24376  Achillea millefolium J. O. Sawyer 1970-6-24 2217 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC58134  Achillea millefolium Muth 1979-8-1 12141 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC73474  Achillea millefolium Gail Newton 1980-7-11 1312 Humboldt Near Red Mtn. 1341 Comment
  HSC81936  Achillea millefolium Thomas W. Nelson, Jane P. Nelson 1979-7-3 4957 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UC1222923  Achillea millefolium Joseph P. Tracy 1950-7-31 19240 Humboldt at the look-out station, top of mountain Grouse Mountain 1524 Comment
  CAS-BOT-BC210654  Achnatherum lemmonii Joseph P. Tracy 1933-6-13 12597 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  SEINET200949 Image available Achnatherum lemmonii J. P. Tracy 1921-5-30 5486 Humboldt Kneeland Prairie 762 Comment
  UC1103142  Achnatherum lemmonii Joseph P. Tracy 1921-5-30 5486 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC70821  Achnatherum lemmonii Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5680 Humboldt Hoopa Mt. Comment
  RSA167290  Achnatherum lemmonii var. lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt Halfway between Snow Camp & Twin Lakes (at Preston's old gate near road) Comment
  UCD51130  Achnatherum occidentale subsp. californicum Don Hagar 1957-8-6 s.n. Humboldt Red Cap Prairie, west of Trinity Summit. 1828 Comment
  HSC76515  Acmispon micranthus Denis Kearns 1981-7-8 160 Humboldt Near Bluff Creek 622 Comment
  HSC44598  Aconitum columbianum subsp. columbianum Brad Klipfel 1973-7-15 193 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56154  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-8-1 12014 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC73766  Aconogonon davisiae Gail Newton 1980-7-24 1772 Humboldt Near Somes Mtn. 1615 Comment
  RSA46865  Actaea rubra subsp. arguta Doris K. Kildale 1927-7-10 3729 Humboldt Gans Prairie, Bald Mountain Comment
  HSC73574  Adenocaulon bicolor Gail Newton 1980-7-14 1511 Humboldt Near Deadman Ridge 1097 Comment
  CAS-BOT-BC29865  Adenocaulon bicolor Huron Herbert Smith 1911-6-20 3910 Humboldt unspecified Comment
  UC249778 Image available Adiantum X tracyi Joseph P. Tracy 1924-9-16 6868 Humboldt <collector's garden> Eureka; Northern Coast Ranges 30 Comment
  UCR123954  Adiantum aleuticum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6969 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  CAS-BOT-BC62294  Adiantum aleuticum Volney Rattan 1886-8-1 s.n. Humboldt Austin Creek, coast mts. north of San Francisco Bay Comment
  HSC43906  Adiantum aleuticum H. S. Logsdon 1964-5-14 42 Humboldt 3 mi. SE of Bayside on Jacoby Cr. Rd. Comment
  CAS-BOT-BC65623  Adiantum jordanii Donald Branscomb 1959-9-1 s.n. Humboldt About 1 mile north of Garberville Comment
  CAS-BOT-BC65727  Adiantum pedatum Kenneth Clark 1980-6-14 691 Humboldt Point Delgada quad, north fork Dead Man's Gulch 83 Comment
  CAS-BOT-BC202605  Aesculus californica Marcus E. Jones 1931-7-12 28938 Humboldt Alton Comment
  RSA46781  Ageratina occidentalis Doris Kildale Gillespie 1937-8-12 15253 Humboldt South Fork Mountain. Comment
  UC166820  Agoseris apargioides var. maritima J. P. Tracy 1901-8-7 1259 Humboldt sand hills at Samoa, opposite Eureka Ocean Beach, Eureka Comment
  HSC70406  Agoseris grandiflora M. A. Baker 1980-6-7 1842 Humboldt Near Ammon Creek 732 Comment
  SEINET202623 Image available Agoseris grandiflora Joseph P. Tracy 1942-7-18 17275 Humboldt Garberville north end of town. Comment
  HSC79419  Agoseris heterophylla Kenneth Clark 1980-4-18 582 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  UC249886  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6283 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  HSC32335  Agoseris retrorsa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5616 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  CDA1703  Agrostis capillaris T. C. Fuller 1962-8-6 9362 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  HSC98818  Agrostis capillaris Cara Witte 2007-7-25 575 Humboldt Waterhole off FS Road 5N10. 2 mi E of intersection with National Forest 1. 1369 Comment
  CAS-BOT-BC127297  Agrostis exarata Doris K. Kildale 1927-7-23 3796 Humboldt Near Lasseeks [Lassics] Peaks. Haaglin [Hoagland] Lake. Comment
  HSC68963  Agrostis hallii Jacqueline Greenleaf 1980-7-16 250 Humboldt Near Buck Mountain. 1250 Comment
  RSA129594  Agrostis hallii H. S. Yates 1936-6-17 5689 Humboldt 1 mile W of Bridgeville 183 Comment
  UC188841  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-5 5880 Humboldt Martins Ferry Comment
  CAS-BOT-BC138875  Agrostis microphylla A. A. Heller 1923-7-8 13772 Humboldt Near Fortuna. Comment
  POM126118  Agrostis pallens Joseph P. Tracy 1900-7-4 876 Humboldt Ocean Beach at Samoa. Comment
  CAS-BOT-BC138632  Agrostis stolonifera Joseph P. Tracy 1927-7-16 8253 Humboldt Northern Coast Ranges. Around Humboldt Bay. Mouth of Elk River. 6 Comment
  UC1145071  Agrostis thurberiana Joseph P. Tracy 1939-7-9 16344 Humboldt Snow Camp 1432 Comment
  HSC65424  Aira caryophyllea J. P. Smith, J. O. Sawyer 1973-5-12 6683 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  UC526681  Aira caryophyllea Joseph P. Tracy 1927-6-19 8199 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CAS-BOT-BC138196  Aira praecox Joseph P. Tracy 1925-6-13 7099 Humboldt Northern Coast Ranges. Eureka. 60 Comment
  SJSU16017  Aira praecox John Rawlings 2016-5-19 1801 Humboldt Gold Bluffs Beach 5 Comment
  UC1103305  Aira praecox Joseph P. Tracy 1935-6-8 13942 Humboldt Santa Clara Tract Northern Coast Ranges, Eureka 0 Comment
  HSC102513  Allium amplectens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1499 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC1198195  Allium amplectens Joseph P. Tracy 1927-5-14 8004 Humboldt near South Fork; Trinity River Valley 182 Comment
  CAS-BOT-BC460754  Allium amplectens Carl B. Wolf 1937-6-14 8810 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  UC142773  Allium bolanderi Harley P. Chandler June, 1901 1434 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  SEINET3153890  Allium campanulatum N. Dennis 1965-6-19 132 Humboldt about 1/4 mi S and 1 mi E of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 mi SE of Kneeland 792 Comment
  HSC36496  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1895 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC67192  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-6-10 5417 Humboldt Along rd. to Red Mtn. 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  RSA167424  Allium unifolium Joseph P. Tracy 1950-6-25 18890 Humboldt Burr Valley. Comment
  HSC47291  Allium unifolium Dale McNeal 1978-6-3 2160 Humboldt 4.3 mi. S of Bridgeville on rd. to Blocksburg Comment
  POM160903  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6574 Humboldt North Dobbyn Creek. 152 Comment
  HSC37963  Alnus rubra Peter Sorensen 1976-6-12 Humboldt Woodley Island Comment
  JEPS58588  Alnus rubra Lincoln Constance 1934-5-31 746 Humboldt along creek from w boundary of Park to Grasshopper Pk. (Squaw Cr.) rd. (n side of cr.); Bull Creek Region, South Fork Eel River, Bull Cr. flat Comment
  RSA778734  Alnus rubra Lyman Benson 1928-7-10 430 Humboldt Clam Beach, Trinidad. 12 Comment
  HSC57668  Alnus viridis subsp. sinuata G. L. Clifton, Griswold 1979-7-25 10853 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1103316  Alopecurus aequalis Joseph P. Tracy 1924-8-31 6851 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges, Klamath R. 91 Comment
  UCD55838  Alopecurus aequalis Joseph P. Tracy 1950-7-6 19019 Humboldt Buck Mountain, 3 miles south of Burr Valley. 1158 Comment
  CAS-BOT-BC138016  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt North Coast Ranges. Arcata Bottom. 15 Comment
  CDA28200  Alopecurus geniculatus A. A. Beetle, G. L. Stebbins, J. P. Tracy 1942-6-2 3458 Humboldt Loleta Swamp, S of Eureka. 0 Comment
  UC677600  Alopecurus geniculatus A. A. Beetle with Stebbins and Tracy 1942-6-2 3458 Humboldt s. of Eureka (Loleta Swamp); Loleta Swamp Comment
  UCD55904  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt mouth of Elk River, near Eureka. 6 Comment
  UCD55925  Alopecurus saccatus Beecher Crampton 1953-5-14 1264 Humboldt 1.5 mile south of Walsh Station. Comment
Read comments
May 18 2016
  UC132197  Amaranthus albus Joseph P. Tracy 1907-8-20 2598 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CDA9965  Ambrosia chamissonis T. C. Fuller 1958-6-17 1905 Humboldt Zanone Ranch, Cape Mendocino. 0 Comment
  CAS-BOT-BC142905  Amelanchier Doris K. Kildale; L. B. Kildale 1930-5-11 9559 Humboldt McClellan Hill near Bridgeville 609 Comment
  HSC70328  Amelanchier alnifolia M. A. Baker 1980-6-8 1883 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC142887  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  SBBG115197  Ammophila arenaria D. Leaberry 1992-6-20 Humboldt Clam Beach County Park, ca. 1 mi N of Arcata Airport Comment
  UC1239643  Amsinckia intermedia Joseph P. Tracy 1936-6-9 14897 Humboldt hills between the coast and Petrolia 213 Comment
  HSC90482  Amsinckia spectabilis Jean Hanson 1981-5-10 132 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  UC1198609  Anagallis arvensis Joseph P. Tracy 1948-9-20 18222 Humboldt Hoopa Valley, along Mill Creek Hoopa Valley, Mill Creek 91 Comment
  CAS-BOT-BC45135  Anaphalis margaritacea Doris K. Kildale 1925-7-2 899 Humboldt Table Bluff Comment
  RSA1464  Anaphalis margaritacea E. R. Johnson 1929-08 1407 Humboldt Arcata Redwood Park 76 Comment
  RSA416577  Anaphalis margaritacea B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  UC175184  Anaphalis margaritacea Joseph P. Tracy 1913-9-9 4400 Humboldt Big Lagoon; Northern Coast Ranges 30 Comment
  CAS-BOT-BC391786  Anemone deltoidea Mrs. H. C. Cantelow 1936-5-17 s.n. Humboldt 4 1/2 miles east of Orick Comment
  UC1196194  Anemone deltoidea Joseph P. Tracy 1933-7-11 12711 Humboldt Grouse Mtn; North Coast Ranges; Grouse Mtn 1524 Comment
  HSC97491  Anemone oregana C. Witte 2007-5-17 25 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  UCR39823  Anemone oregana Dave Bjornbak, M. Mayer, Steve Meredith 1985-5-10 33 Humboldt Horse Mtn. Rd., 8 mi. south of 299 1143 Comment
  UC1196190  Anemone oregana Joseph P. Tracy 1901-4-26 1042 Humboldt n slope Humboldt Hill (near Buhne's Ranch, region about Humboldt Bay); North Coast Ranges 0 Comment
  HSC56060  Angelica arguta G. L. Clifton, Griswold 1979-7-31 11697 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1197381  Angelica genuflexa Joseph P. Tracy 1949-8-26 18509 Humboldt Happy Camp Mountain (In Trinity Summit Range, northeast of Hawkins Bar. 1280 Comment
  RSA21584  Angelica hendersonii C. B. Wolf 1937-9-9 9304 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  UC642237  Angelica hendersonii Joseph P. Tracy 1938-8-28 16133 Humboldt Trinidad 3 Comment
  HSC71419  Angelica hendersonii J. M. DiTomaso 1980-7-29 1797 Humboldt Elkshead, 2 mi N of Trinidad Comment
  RSA21186  Angelica hendersonii C. B. Wolf 1937-8-11 9145 Humboldt 1/2 mile east of Alton. 21 Comment
  UC1197332  Angelica lucida Joseph P. Tracy 1941-8-3 16977 Humboldt at w foot of Table Bluff Table Bluff 6 Comment
  UC642300  Angelica tomentosa Joseph P. Tracy 1939-8-16 16409 Humboldt Horse Mountain 1432 Comment
  UC642238  Angelica tomentosa Joseph P. Tracy 1938-8-14 16107 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  HSC76418  Anisocarpus madioides Denis Kearns 1981-7-8 161 Humboldt Near Bluff Creek 622 Comment
  UC34190  Anisocarpus madioides Harley P. Chandler June, 1901 1313 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CAS-BOT-BC271490  Anisocarpus madioides Doris K. Kildale 1927-4-30 1912 Humboldt Fruitland Hill, Ham's Road Comment
  HSC45639  Anisocarpus madioides Diane L. Reed 1978-5-7 50 Humboldt Friday Ridge Road, near Hwy. 299 Comment
  CAS-BOT-BC63858  Antennaria argentea Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC82122  Antennaria microphylla Thomas W. Nelson 1979-7-11 4998 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC4648  Antennaria suffrutescens D. E. Anderson 1963-9-21 2845 Humboldt Grouse Mtn. Rd Comment
  UC166080  Anthemis cotula J. P. Tracy 1909-7-4 3011 Humboldt Eureka 0 Comment
  HSC8937  Anthoxanthum odoratum S. R. Johnson 1965-4-16 37 Humboldt 1 mi. N of Luffenholtz Beach Comment
  RSA129295  Anthoxanthum odoratum H. S. Yates 1936-6-18 5737 Humboldt 2 miles N. of Big Lagoon. Rocky Pt. 30 Comment
  UC922012  Anthoxanthum odoratum Joseph P. Tracy 1948-6-13 18046 Humboldt Dobbyn Creek 152 Comment
  UCD56274  Anthoxanthum odoratum J. W. McClellan 1924-5-26 s.n. Humboldt from Bridgeville. Comment
  UCD56641  Anthoxanthum odoratum G. Douglas Barbe; T. C. Fuller 1974-6-17 1848 Humboldt North Coast Rages, Eureka, at 707 'L' Street, behind CSAA (California State Automobile Assoc.) district office. Comment
  UCD81681  Anthoxanthum odoratum Chuck Hughes 2009-6-18 101 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  UC444959  Antirrhinum vexillocalyculatum subsp. breweri Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5890 Humboldt Francis Range in the Bald Hills; North Coast Ranges Comment
  UC582471  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1935-10-13 14756 Humboldt Willow Creek; Trinity River Valley 152 Comment
  JEPS45613  Aphanes occidentalis W. L. Jepson 1921-8-7 9337 a Humboldt Stone Lagoon; Humboldt Coast Comment
  HSC41262  Apocynum androsaemifolium Brad Klipfel 1974-7-23 454 Humboldt Ridge running E of Horse Mtn. Comment
  HSC41328  Apocynum androsaemifolium Brad Klipfel 1974-8-2 510 Humboldt Horse Mtn. Comment
  HSC99562  Apocynum androsaemifolium K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 227 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
  RSA85397  Apocynum androsaemifolium subsp. pumilum E. K. Balls, Lee W. Lenz 1956-6-12 21661 Humboldt 4.4 mi SW from Willow Creek, along US Hwy. 299, Willow Creek to Arcata 366 Comment
  UCSB25082  Apocynum cannabinum Keefe, Joseph 1967-7-8 Humboldt Bank of Ell River, Miranda turnoff, 12.4 miles north of Garberville on U.S. Highway 101 170 Comment
  HSC3218  Apocynum cannabinum Lincoln Constance 1934-6-11 848 Humboldt Bull Creek region, trail along E bank of S Fork of Eel, N Dyerville Flat Comment
  CAS-BOT-BC392159  Aquilegia formosa J. O. Sawyer; R. J. Cole 1977-7-3 3006 Humboldt Environs of Mud Spring. Big Hill Road (F.S. 8N01) 1524 Comment
  CAS-BOT-BC392162  Aquilegia formosa M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale, 8 mi. N. of Garberville Comment
  CAS-BOT-BC392167  Aquilegia formosa Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC102623  Aquilegia formosa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1610 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC55861  Aquilegia formosa var. truncata G. L. Clifton, Griswold 1979-7-25 10870 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  RSA0126368  Arabis glabra Joseph P. Tracy 1946-7-7 17610 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  OBI20498  Aralia californica Carl B. Wolf 1937-9-8 9302 Humboldt North Coast Range, Bull Crk-Petrolia Rd, 12 mi W of Redwood hwy 457 Comment
  UC1196880  Arbutus menziesii F. C. Gregory 1919-10-10 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198123  Arceuthobium campylopodum Joseph P. Tracy 1935-7-22 14127 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC153958  Arctostaphylos X media J. P. Tracy 1901-4-21 1035 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC7646  Arctostaphylos canescens Francis Winter 1960-4-24 Humboldt Sugar Pine Mtn., 6 mi. W of Hoopa Indian Reservation 1067 Comment
  CAS-BOT-BC24096  Arctostaphylos canescens subsp. canescens Joseph P. Tracy 1949-8-4 18405 Humboldt Trinity Summit, ridge top one mile west of Mud Springs. 1158 Comment
  CAS-BOT-BC23754  Arctostaphylos columbiana Alice Eastwood; John Thomas Howell 1934-4-11 1327 Humboldt Patrick's Point Comment
  CAS-BOT-BC23767  Arctostaphylos columbiana Joseph P. Tracy 1927-8-14 8331 Humboldt Big Lagoon 152 Comment
  CAS-BOT-BC23768  Arctostaphylos columbiana Joseph P. Tracy 1935-2-9 13710 Humboldt Big Lagoon 30 Comment
  CAS-BOT-BC23775  Arctostaphylos columbiana Joseph P. Tracy 1936-8-2 15074 Humboldt French Camp Ridge 1066 Comment
  HSC7722  Arctostaphylos columbiana H. E. Parks Feb 1934 4774 Humboldt Spruce Cove, Trinidad Comment
  RSA622683  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27815 Humboldt Highway 299, east of Lord Ellis Summit, east of Eureka. 700 Comment
  RSA622697  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27679 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
  RSA622698  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27681 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
  UC314644  Arctostaphylos columbiana Joseph P. Tracy 1924-3-9 6606 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA12534  Arctostaphylos columbiana var. columbiana C. B. Wolf 1934-7-2 5904 Humboldt 4 mi. from Snow Camp on rd. to Bald Mt. (Mts. east of Korbel). 1159 Comment
  RSA246945  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, Percy C. Everett 1965-8-5 35133 Humboldt Peak of Mt. Chamisal. 701 Comment
  SD42559  Arctostaphylos hispidula Carl B. Wolf 1937-8-13 9226 Humboldt 8.0 miles east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  JEPS38950  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  CHSC63764  Arctostaphylos manzanita Walter Knight; Irja Knight 1988-9-5 6362 Humboldt Bald Hill Road about 21.5 miles from US 101 en route to Hoopa. 929 Comment
  UCSB11765  Arctostaphylos manzanita Nelson, R. 1950-7-26 Humboldt 0.5 mile northwest of Neafus Peak 762 Comment
  JEPS38980  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC7656  Arctostaphylos nevadensis J. Pursell 1964-10-17 10173 Humboldt Road to Box Camp in Hoopa Valley Comment
  UC1196874  Arctostaphylos nevadensis Joseph P. Tracy 1933-7-11 12670 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC27298  Arctostaphylos tracyi Joseph Prince Tracy 1923-2-18 6141 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC43979  Arctostaphylos uva-ursi Greg de Nevers 2001-4-18 12251 Humboldt Lanphere-Christenson dunes, near Arcata. 9 Comment
  CAS-BOT-BC43993  Arctostaphylos uva-ursi Robert F. Thorne; P. Everett 1965-8-5 35156 Humboldt Samoa Dunes 3 Comment
  CAS-BOT-BC47212  Arctostaphylos uva-ursi John Thomas Howell 1954-4-25 29157 Humboldt Little River. Comment
  HSC59745  Arctostaphylos uva-ursi Clark L. Miller 1979-5-9 3113 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  UC154201  Arctostaphylos uva-ursi Harley P. Chandler May, 1901 1193 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC180220  Arctostaphylos uva-ursi Joseph P. Tracy 1914-8-30 4594 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC59030  Arctostaphylos viscida M. A. Baker 1979-6-7 795 Humboldt NE slope of Telescope Peak 1189 Comment
  HSC71587  Arctostaphylos viscida Gail Newton 1980-6-16 180 Humboldt Near Monks Camp 109 Comment
  HSC16899  Armeria maritima subsp. californica S. J. Hawks 1965-3-9 42 Humboldt 1 mi. W of McKinleyville, past the end of Murray Rd. Comment
  POM232100  Armeria maritima subsp. californica I. L. Wiggins 1930-7-11 4683 Humboldt Near Samoa Comment
  UC562472  Armeria maritima subsp. californica Joseph P. Tracy 1927-6-8 8115 Humboldt Trinidad; sandy slopes facing ocean 3 Comment
  HSC4712  Arnica cernua D. E. Anderson 1965-6-1 3753 Humboldt Horse Mountain. 1220 Comment
  UC34178  Arnica cernua Harley P. Chandler 1901-6-1 1298 Humboldt Hupa Indian Reservation Northern Coast Ranges, Hupa Indian Reservation 609 Comment
  SEINET6413745  Arnica cordifolia R. Spellenberg, S. Spellenberg 2014-5-24 14825 Humboldt USFS Road 1 S of CA Highway 299 at Berry Summit, 1.5 km N of junction with USFS Road 6N36 to translator towers. 1448 Comment
  JEPS20978  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt near Corral Prairie; Trinity Summit 1524 Comment
  HSC58599  Arnica parryi G. L. Clifton, Griswold 1979-7-25 10764 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC67894  Artemisia douglasiana J. P. Smith 1973-5-26 6803 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC75275  Artemisia douglasiana J. O. Sawyer, D. A. Thornburgh 1980-9-9 4080 Humboldt Mill Creek Lake and surrounding meadows Comment
  HSC99551  Artemisia douglasiana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 216 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC582424  Artemisia dracunculus Joseph P. Tracy 1932-8-27 10751 Humboldt on: Blue Slide Van Duzen River 91 Comment
  UC1222995  Artemisia dracunculus Joseph P. Tracy 1950-8-20 19325 Humboldt 8 mi below Orleans (at Big Bar); Klamath River near Snake Creek 121 Comment
  HSC4746  Artemisia pycnocephala David Adams 1960-7-17 Humboldt 2 miles S of Samoa 0 Comment
  RSA109296  Artemisia pycnocephala H. E. Parks, S. T. Parks 1952-06 24495 Humboldt Ocean sand dunes, Samoa Comment
  RSA296735  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just east of the drag strip. Comment
  BLMAR313  Artemisia suksdorfii Jennifer Anthony-Wheeler 2002-8-9 313 Humboldt Lost Coast Headland, trail to guthrie creek 30 Comment
  RSA34239  Artemisia suksdorfii C. B. Wolf 1927-8-29 1220 Humboldt Devils' Gate, S of Cape Mendocino Comment
  SEINET190493  Artemisia suksdorfii H. E. Parks May 1940 24178 Humboldt Little River Comment
  UC1199378  Artemisia suksdorfii Joseph P. Tracy 1939-5-28 16309 Humboldt coast bluffs s Centerville 60 Comment
  HSC93258  Arum palaestinum Gordon Leppig 1998-5-8 755 Humboldt Arcata Marsh and Wildlife Sanctuary, Butchers Slough, 50 m W of Interpretive Center Comment
  UC198579  Aruncus dioicus var. pubescens Joseph P. Tracy 1916-6-25 4749 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  RSA46470  Aruncus sylvester Doris K. Kildale 1927-7-3 3663 Humboldt Willow Creek Flat. Comment
  CHSC111  Asarum caudatum 1952-7-7 Humboldt Coastal. Comment
  SEINET3369095 Image available Asarum caudatum Richard R. Halse 2011-3-25 8163 Humboldt Along U.Sl. Hwy 101 ca 2.8 miles S of Stafford, near Exit 674. 74 Comment
  UC672846  Asarum caudatum Joseph P. Tracy 1935-7-23 14160 Humboldt Trinity Summit, lower end of Brett Hole 1584 Comment
  CAS-BOT-BC400540  Asarum caudatum C. C. Harris; S. K. Harris 1936-6-14 652 Humboldt On Yager Road from Carlotta 457 Comment
  HSC34795  Asarum caudatum John Palmer 1975-4-9 297 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  HSC57099  Asarum hartwegii Overton, Butler 1979-7-25 9828 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC65862  Asarum hartwegii Gail Newton 1980-7-22 1698 Humboldt Near Devils Backbone 1545 Comment
  UC1197608  Asclepias eriocarpa Joseph P. Tracy 1932-9-3 10764 Humboldt Alton to Fortuna; Eel River 15 Comment
  RSA47105  Asclepias speciosa Doris K. Kildale 1925-7-5 s.n. Humboldt Willow Creek Flat 152 Comment
  UCD137283  Aspidotis densa Frederic Hrusa 1993-6-17 11223 Humboldt Red mountain, at entrance gate to Red Mt. 900 Comment
  CDA17341  Aster occidentalis P. Haggard 2004-8-15 PDR 1285931 Humboldt North Coast Ranges; Six Rivers National Forest, Friday Ridge Rd. 0 Comment
  RSA43677  Aster radulinus H. M. Pollard 1947-8-9 s.n. Humboldt South River Road, south of Orleans Comment
  HSC92747  Astragalus agnicidus Robin Bencie 1993-6-15 1 Humboldt Miranda, 2 mi. W of Hwy. 101 on Bear Butte Rd. 500 Comment
  CAS-BOT-BC192860  Astragalus purshii var. lectulus Thomas W. Nelson; James L. Nelson 1980-6-10 5405 Humboldt Along Swayback Ridge 4-wheel drive road ca 2.5 miles north of junction with Forest Service road 1S07 1463 Comment
  BLMAR295  Astragalus pycnostachyus var. pycnostachyus Jennifer Anthony-Wheeler 2002-6-25 295 Humboldt King range, South side Mattole Estuary on riverbank behind dunes 3 Comment
  UC303178  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1925-7-18 7217 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  CAS-BOT-BC193136  Astragalus rattanii var. rattanii L. R. Abrams 1916-7-11 6056 Humboldt At mouth of Grizzly Creek on Van Duzen River Comment
  CAS-BOT-BC200853  Astragalus umbraticus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  JEPS118178  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
  HSC41304  Asyneuma prenanthoides Brad Klipfel 1974-7-23 467 Humboldt Horse Mtn. Comment
  HSC76275  Asyneuma prenanthoides Teresa Prendusi 1981-7-9 169 Humboldt Near Cedar Camp. 1268 Comment
  HSC95880  Athyrium filix-femina var. cyclosorum Will Ferrand 2002-2-2 22 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  HSC44050  Athyrium filix-femina var. cyclosorum Thomas W. Nelson, Jane Nelson 1977-6-19 3493 Humboldt Above Alder Springs, N of pond 1585 Comment
  HSC77503  Athysanus pusillus L. P. Janeway 1983-5-21 300 Humboldt Above Titlow Hill Rd., 3.3 mi S of Hwy. 299 1250 Comment
  HSC9031  Avena barbata Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  UC187270  Avena barbata Joseph P. Tracy 1906-4-29 2426 Humboldt near Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC9023  Avena fatua N. R. Waite 1965-5-18 34 Humboldt W edge of Humboldt State University campus Comment
  HSC60017  Azolla filiculoides M. A. Baker 1978-5-20 566 Humboldt W side of the Klamath River along Hwy. 96 Comment
  CHSC26753  Baccharis douglasii M. S. Taylor 1977-7-5 1428 Humboldt Around bridge over Eel River at the turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  POM318604  Baccharis douglasii Patricia Wilder 1968-8-21 4410 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  RSA93204  Baccharis douglasii F. W. Peirson 1926-7-13 7061 Humboldt Mad River, vicinity of Blue Lake. Comment
  CDA30197  Baccharis pilularis M. K. Beyers, I. Shepardson 2009-9-13 258 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC5117  Baccharis pilularis subsp. consanguinea J. W. Johnson 1961-11-20 1409 Humboldt Arcata; Hollow 10, Lanphere Farm, Samoa Peninsula Comment
  HSC26635  Balsamorhiza deltoidea Thomas W. Nelson 1971-5-31 457 Humboldt Adjacent to the Mad River N of Dinsmore Comment
  UC1222969  Balsamorhiza deltoidea Joseph P. Tracy 1950-6-15 18792 Humboldt 7 mi n, at Mail Ridge Harris Comment
  UC1198286  Barbarea orthoceras Joseph P. Tracy 1906-5-6 2443 Humboldt hillside in Wolverton Gulch, near Hydesville 60 Comment
  UC1198287  Barbarea orthoceras Joseph P. Tracy 1914-6-28 4516 Humboldt near Hydesville 60 Comment
  CAS-BOT-BC145785  Beckmannia syzigachne Joseph P. Tracy 1935-5-25 13848 Humboldt Fort Seward. 106 Comment
  UCR123950  Bellis perennis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6993 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  CAS-BOT-BC106400  Bellis perennis R. Kent Beattie 1946-9-11 11875 Humboldt Redwood forest near Van Dusen River, one mile northwest of STrongs Station on Route 36 Comment
  JEPS8443  Bensoniella oregona Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3416 Humboldt edge of meadow at Snow Camp High Prairie (ridge between Mad River and Redwood Creek (Bald Mountain ridge)); btw Mad River and Redwood Crk (Bald Mountain), High Prairie 1432 Comment
  HSC76277  Berberis aquifolium var. repens Denis Kearns 1981-7-6 65 Humboldt Near Mosquito Lake 1256 Comment
  CAS-BOT-BC75676  Berberis nervosa L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  HSC31569  Berberis nervosa Glenn McGourty 1974-5-11 39 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  CAS-BOT-BC66272  Blechnum spicant W. C. Blasdale 1896-6-1 s.n. Humboldt Eureka Comment
  CAS-BOT-BC15801  Boechera acutina Joseph Prince Tracy 1932-7-11 10396 Humboldt Klamath Mountains. Trinity Summit. At Corral Prairie. 1524 Comment
  UC162612  Boechera retrofracta Harley P. Chandler Jun 1901 1511 Humboldt Klamath River North Coast Ranges 426 Comment
  UC562687  Boechera retrofracta Joseph P. Tracy 1935-7-30 14379 Humboldt Salmon Summit 2103 Comment
  BLMAR411  Bolboschoenus maritimus Jennifer Wheeler 2007-8-22 411 Humboldt South Spit Comment
  HSC7509  Bolboschoenus maritimus subsp. paludosus Paul Shields 1955-9-15 Humboldt 4 mi. NW of Arcata. Comment
  HSC83035  Bolboschoenus maritimus subsp. paludosus A. L. Eicher 1985-8-17 Humboldt Coastal salt marsh bordering Humboldt Bay, 0.3 mi. S of junction of Samoa Blvd. and Vance Ave. 1 Comment
  HSC48730  Boschniakia strobilacea J. Pageau, Jimerson, E. Toth 1979-6-13 522 Humboldt Creek timber sale unit 7 549 Comment
  HSC44566  Boschniakia strobilacea R. York 1978-5-18 173 Humboldt Near Bluff Creek Trail 671 Comment
  HSC12718  Botrychium multifidum C. E. Fellows 1970-10-7 373 Humboldt McKinleyville, 1/8 mi. W of the end of Murray Rd. Comment
  HSC99840  Boykinia occidentalis C. B. Wolf 1927-8-30 1254 Humboldt 3 mi. S of Thorn along old coast road Comment
  CAS-BOT-BC420262  Boykinia occidentalis Roxana S. Ferris 1937-8-21 s.n. Humboldt in cliff above beach, Shelter Cove Comment
  RSA12452  Boykinia occidentalis Carl B. Wolf 1934-6-30 5841 Humboldt 4 miles from Shelter Cove on rd to Briceland. 152 Comment
  HSC28192  Brassica rapa Thomas W. Nelson 1971-4-12 373 Humboldt Hookton Rd. at the junction of Copenhagen Rd. Comment
  HSC79522  Brassica rapa Kenneth Clark 1980-3-1 515 Humboldt Lower alluvial terrace, Dead Man's Gulch 15 Comment
  HSC8563  Briza maxima G. L. Martin 1966-5-10 41 Humboldt Mckinleyville, Mad River beach area in back of Ocean Dr., E side of river Comment
  HSC99871  Briza minor Glenn W. K. Shelton 2010-7-7 9 Humboldt 6 mi. S of Kneeland Airport along Kneeland Rd. 658 Comment
  HSC23716  Brodiaea elegans subsp. elegans Tim Baroni 1971-6-25 36 Humboldt 8 mi. E of Petrolia Comment
  POM160834  Brodiaea stellaris Joseph P. Tracy 1923-7-4 6526 Humboldt Valley of South Yager Creek. 762 Comment
  HSC90775  Brodiaea terrestris subsp. terrestris Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UC527819  Brodiaea terrestris subsp. terrestris Ira L. Wiggins 1932-6-18 5877 Humboldt mouth of Little River Little River Comment
  UC666939  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1933-5-20 12249 Humboldt 1 mi w Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  SEINET201047 Image available Bromus carinatus var. carinatus Joseph P. Tracy 1926-5-2 7424 Humboldt Roadside weed,Trinity River Valley, near the South fork. 183 Comment
  UC1145160  Bromus carinatus var. carinatus Joseph P. Tracy 1950-6-15 18786 Humboldt 7 mi n of Harris (Mail Ridge); Mail Ridge 1036 Comment
  UC37600  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-19 5677 Humboldt Hupa Mountain Comment
  UC37673  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  UCD59205  Bromus carinatus var. marginatus A. H. Shunk 1923-7-12 24 Humboldt Briceland. Comment
  BLMAR143  Bromus diandrus Donald Hazlett 1994-6-7 143 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC37936  Bromus diandrus Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC90691  Bromus hordeaceus Gail Newton 1982-5-31 3555 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC9243  Bromus hordeaceus B. D. Rogers 1964-4-4 21 Humboldt Arcata, HSU campus Comment
  HSC9253  Bromus hordeaceus R. J. Vernimen 1963-4-27 42 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata, along logging road Comment
  HSC71600  Bromus laevipes M. A. Baker 1980-6-26 2411 Humboldt Near Sims Creek 610 Comment
  HSC9266  Bromus racemosus L. M. Malloy 1965-5-15 16 Humboldt N of Trinidad about 2 mi. on Trinity St. Comment
  CDA1853  Bromus vulgaris E. C. Whitney 1976-6-1 Humboldt Redcrest. 0 Comment
  UC1103267  Bromus vulgaris J. P. Tracy 1901-6-2 1116 Humboldt immediate vicinity of Eureka 0 Comment
  UC1103268  Bromus vulgaris Joseph P. Tracy 1912-7-25 3817 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC180480  Bromus vulgaris Joseph P. Tracy 1914-5-14 4444 Humboldt Northern Coast Ranges, Fort Seward Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  UCD60237  Bromus vulgaris P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek, to Arcata. Comment
  UC1198277  Cakile edentula Joseph P. Tracy 1941-8-3 16978 Humboldt at w foot of Table Bluff Table Bluff 3 Comment
  HSC49024  Cakile maritima Patricia Shesgreen 1978-8-19 143 Humboldt Mad River Beach, Arcata Comment
  OBI36381  Cakile maritima David J. Keil 1983-7-1 17284 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  HSC6604  Cakile maritima J. W. Johnson 1961-11-29 1415 Humboldt End of Ridge 3, Christenson Farm, Samoa Peninsula, Arcata Comment
  HSC74184  Calamagrostis koelerioides M. A. Baker 1980-7-23 3140 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC185178  Calamagrostis nutkaensis Ira L. Wiggins 1932-7-25 5898 Humboldt Roadsides near McKenleyville. Comment
  HSC17625  Calandrinia ciliata Francis Winter 1960-5-7 Humboldt French Camp Ridge, 3 mi. W of Burnt Ranch 671 Comment
  HSC17628  Calandrinia ciliata D. E. Anderson 1963-5-19 2461 Humboldt Barry Rd., Kneeland Comment
  UCR196002  Callitriche heterophylla subsp. bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35323 Humboldt Northwestern; Outer North Coastal region, Clam Beach County Park, along highway 3 Comment
  UC144080  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1909-5-23 2974 Humboldt 4 mi se Eureka (at Connick Claim) 0 Comment
  UC198582  Callitriche marginata Joseph P. Tracy 1917-6-17 4823 Humboldt Salmon Creek Valley Northern Coast Ranges, Humboldt Bay (around Humboldt Bay) 30 Comment
  CAS-BOT-BC32372  Callitriche trochlearis Stuart Kimball Harris; Joseph Prince Tracy; Harry Stanley Yates 1936-6-17 3454 Humboldt NW slopes of Buck Mountain 822 Comment
  SBBG115082  Calochortus amabilis D. Leaberry 1991-6-13 Humboldt Hwy 254 (Avenue of the Giants), ca. 1 mi S of Phillipsville Comment
  UC667123  Calochortus amabilis Joseph P. Tracy 1916-6-19 4711 Humboldt Bosworth's Larrabee Creek 457 Comment
  UC1601652  Calochortus coeruleus Joseph Burtt Davy Jun 21 1899-Jun 23 1899 5744 1/2 Humboldt Trinity Trinity Summit Comment
  CAS-BOT-BC494368  Calochortus tolmiei M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles n. of Garberville Comment
  HSC26870  Calochortus tolmiei Clifton Raymond Chesbrough 1973-6-19 94 Humboldt 0.5 mi. N of College Cove along coast Comment
  HSC89585  Calochortus tolmiei M. Roantree 1985-5-30 70 Humboldt W side of Trinidad Head on an outcropping W of trail Comment
  HSC55997  Caltha leptosepala Overton, Butler 1979-7-31 11439 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC275368  Calycadenia truncata var. truncata Harley P. Chandler 1901-6-1 1492 Humboldt Klamath River 426 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
  HSC38746  Calypso bulbosa var. occidentalis J. D. Ackerman 1976-4-27 754 Humboldt 10 mi. E of Blue Lake on road to Maple Creek Comment
  HSC40013  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1976-7-1 2914 Humboldt N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC6366  Calystegia soldanella K. P. St. John 1965-5-21 40 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  RSA34296  Calystegia soldanella J. Wendell Howe 1933-5-23 s.n. Humboldt Samoa Comment
  CAS-BOT-BC493384  Camassia quamash subsp. linearis M. S. Jussel 1931-5-1 s.n. Humboldt On road to Garberville Comment
  CDA39271  Camassia quamash subsp. quamash Gordon Leppig 1998-6-1 874 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  SD38658  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1932-7-27 4153 Humboldt Comment
  UC179967  Campanula prenanthoides Joseph P. Tracy 1914-9-6 4623 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA43830  Campanula prenanthoides H. M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  SEINET10939028  Campanula prenanthoides Klipfel 1974-7-23 KLIPFEL 467 Humboldt Horse Mountain, at junction of a draw and the saddle of the ridge. T6N R4E Sec. 27 SW 1/4 Comment
  HSC98552  Campanula scouleri Cara Witte 2007-7-20 568 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1522 Comment
  SEINET10463479  Campanula scouleri Manning MANNING [ 305 ] Humboldt Near Hupa (Bald Hills). 457 Comment
  SEINET201622  Campanula scouleri Joseph P. Tracy 1937-7-25 15560 Humboldt Happy Camp Mountain In Trinity Summit Range NE of Hawkins Bar. 1280 Comment
  RSA302679  Cardamine angulata J. R. Shevock 1972-3-26 1467 Humboldt Hwy 299. 366 Comment
  CAS-BOT-BC37419  Cardamine californica LeRoy Ellsworth Detling 1935-4-20 1643 Humboldt Redwood flat, 1 mile north of Dyerville. Comment
  CAS-BOT-BC37424  Cardamine californica Doris K. Kildale 1927-1-23 2974 Humboldt Van Duzen River at the Blue Shale. Comment
  HSC45593  Cardamine californica Diane L. Reed 1978-4-22 38 Humboldt Trinidad Head Comment
  UC1199192  Cardamine californica Joseph P. Tracy 1949-6-6 18305 Humboldt ne Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain, ne Hawkins Bar 1280 Comment
  HSC89488  Cardamine oligosperma P. A. Daly 1986-2-28 66 Humboldt Trinidad Head, along trail 61 Comment
  HSC78610  Cardamine oligosperma L. P. Janeway 1984-3-17 716 Humboldt N Spit of Humboldt Bay, W of Samoa Rd. near the boat launch ramp 5 Comment
  CAS-BOT-BC384763  Cardionema ramosissimum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  CHSC55892  Cardionema ramosissimum L. P. Janeway 1987-7-31 2546 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  SEINET201070  Carduus pycnocephalus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mt 762 Comment
  HSC79422  Carduus pycnocephalus subsp. pycnocephalus Kenneth Clark 1980-3-22 522 Humboldt Above Deadman's Gulch 107 Comment
  HSC103599  Carex angustata Thomas W. Nelson, Jane Nelson 1987-6-11 8609 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  HSC76400  Carex aquatilis var. dives L. P. Janeway 1982-8-7 118 Humboldt Dry Lagoon, middle of lagoon 3 Comment
  CHSC93260  Carex bolanderi Thomas Nelson; Jane Nelson 1977-7-1 3559 Humboldt The Lassics. Along Blanket Creek. 1493 Comment
  HSC63873  Carex bolanderi M. A. Baker 1979-6-29 962 Humboldt Hopkins Creek 750 Comment
  HSC98962  Carex bolanderi Cara Witte 2008-7-16 913 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC562277  Carex bolanderi Joseph P. Tracy 1935-7-23 14162 Humboldt Trinity Summit, lower end of Brett Hole 1584 Comment
  BLMAR502  Carex bolanderi Jennifer Wheeler 2009-5-9 502 Humboldt Headwaters Forest Reserve, HRC U08 Road; spur close to Elk River Comment
  CAS-BOT-BC110192  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon. 30 Comment
  HSC45391  Carex buxbaumii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4404 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  HSC45435  Carex buxbaumii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt Along FS 2S08 near Pine Mtn. 1463 Comment
  HSC96554  Carex buxbaumii Gordon Leppig 1997-6-19 448 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC34436  Carex deflexa var. boottii Joseph Prince Tracy 1939-5-14 16292 Humboldt Dinsmores. Along Van Duzen River. 731 Comment
  UC1158127  Carex densa Joseph P. Tracy 1942-6-15 17135 Humboldt Englewood, near Redcrest resort 91 Comment
  JEPS121644  Carex echinata Jennifer Buck, Danielle Roach 2009-8-20 Humboldt Doehop Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM04A Comment
  CAS-BOT-BC20012  Carex feta H. D. Ripley; R. C. Barneby 1945-6-16 6823 Humboldt NW of Harris. 883 Comment
  SEINET7559345 Image available Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt Grouse Mountain Quad, High North Coast Range, on northeast side of Titlow Hill Road, across from a small pond, on the map but un-named, 1.1 km south of Cold Spring. 1426 Comment
  CAS-BOT-BC20876  Carex globosa Joseph Prince Tracy 1927-7-4 8242 Humboldt North Coast Ranges. Blue Slide, on Van Duzen River. 91 Comment
  JEPS25966  Carex harfordii Joseph P. Tracy 1927-7-17 8279 Humboldt Three Cabins: grassy slopes on lower western foothills of Chaparral Mountain 457 Comment
  CAS-BOT-BC21754  Carex hassei Joseph Prince Tracy 1941-5-11 16868 Humboldt Big Lagoon. 152 Comment
  UC562719  Carex hassei H. E. Parks and Joseph P. Tracy 1931-5-9 9401 Humboldt vicinity Trinidad; Bishop Pine Lodge 60 Comment
  CAS-BOT-BC21019  Carex hendersonii Joseph Prince Tracy 1926-6-13 7598 Humboldt Blue Lake. 152 Comment
  UC1103595  Carex hendersonii Joseph P. Tracy 1942-6-15 17143 Humboldt on the Briceland road Redwood Creek 121 Comment
  UC197213  Carex hendersonii Joseph P. Tracy 1913-5-11 4070 Humboldt at Eureka Northern Coast Region 0 Comment
  RSA88654  Carex leptopoda Joseph P. Tracy 1935-6-8 13937 Humboldt Eureka. 61 Comment
  SEINET7565140 Image available Carex leptopoda L. P. Janeway 2003-7-27 7929 Humboldt North Coast. On ridge between Stone Lagoon, Dry Lagoon and the beach (Sharp Point). Rodgers Peak 7.5' quad. 823 Comment
  HSC93773  Carex lyngbyei Gordon Leppig 1996-5-17 333 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, Butcher Slough, E side about 20 m N of Interpretive Center Parking lot, just W of South I St. 1 Comment
  UC204898  Carex mendocinensis Joseph P. Tracy 1911-7-6 3343 Humboldt Northern Costa Ranges. Mountains slopes along road between Three Creeks and mouth of Willow Creek. Comment
  CAS-BOT-BC31822  Carex mendocinensis Joseph Prince Tracy 1935-7-14 14086 Humboldt Along streamlet Grouse Mountain. 1524 Comment
  UC562448  Carex nudata Joseph P. Tracy 1935-7-21 14120 Humboldt along river at Willow Creek Trinity River Valley 152 Comment
  HSC7068  Carex obnupta R. E. Hafenfeld 1965-5-9 18 Humboldt Near mouth of Squashan Creek Comment
  CAS-BOT-BC119381  Carex obnupta Joseph Prince Tracy 1934-7-13 13381 Humboldt Arcata Bottom. 15 Comment
  JEPS80020  Carex obnupta Joseph P. Tracy 1912-6-16 3701 Humboldt above edge of salt marsh at Hookton Northern Coast Region, Humboldt Bay, Hookton 0 Comment
  HSC65948  Carex ovalis M. A. Baker 1980-7-19 2991 Humboldt Near Bret Hole. 1814 Comment
  CAS-BOT-BC119232  Carex pachystachya Joseph Prince Tracy 1936-7-5 15043 Humboldt Grouse Mountain. 1524 Comment
  HSC98951  Carex pachystachya Cara Witte 2008-7-11 878 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC1103124  Carex pansa J. P. Tracy 1900-6-5 853 Humboldt immediate vicinity Eureka 0 Comment
  UCSC000108  Carex pansa C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  CAS-BOT-BC118009  Carex rossii Joseph Prince Tracy 1935-6-23 13977 Humboldt French Camp Ridge. 1066 Comment
  HSC70467  Carex rossii J. P. Tracy 1904-5-1 2041 Humboldt Eureka 0 Comment
  CAS-BOT-BC116907  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-22 4725 Humboldt Near Harris Comment
  CAS-BOT-BC116674  Carex subfusca Stuart Kimball Harris; J. P. Tracy; Harry Stanley Yates 1936-6-17 3447 Humboldt NW slopes of Buck Mountain. 822 Comment
  CAS-BOT-BC115569  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4745 Humboldt Near Blocksburg Comment
  CAS-BOT-BC115576  Carex tumulicola Joseph Prince Tracy 1912-7-26 3835 Humboldt Kneeland Prairie. 762 Comment
  RSA152530  Carex unilateralis Joseph P. Tracy 1946-5-30 17539 Humboldt Wet gully in grassland near Bridgeville. 457 Comment
  UC562649  Carex unilateralis Joseph P. Tracy 1927-7-17 8276 Humboldt Three Cabins; lower western foothills of Chaparral Mountain 457 Comment
  HSC103141  Carex utriculata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1067 Humboldt Patterson Meadows 1555 Comment
  HSC59487  Carpobrotus edulis M. A. Ericksen 1979-4-29 238 Humboldt Across from the Samoa Cookhouse, Samoa, on Samoa Peninsula. Comment
  CAS-BOT-BC249131  Castilleja affinis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  JEPS15614  Castilleja affinis subsp. litoralis Rimo Bacigalupi with G. Thomas Robbins and C. L. Custer 1954-8-11 4758 Humboldt 1.2 mi s Trinidad Comment
  JEPS35843  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 8989 Humboldt just n Table Bluff lighthouse (s end of Humboldt Bay); Humboldt Bay Comment
  UC1196854  Castilleja affinis subsp. litoralis Joseph P. Tracy 1920-7-4 5342 Humboldt mouth of Little River; Northern Coast Ranges 15 Comment
  JEPS26222  Castilleja ambigua subsp. ambigua Joseph P. Tracy 1921-7-10 5853 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  UC582571  Castilleja ambigua subsp. ambigua H. E. Parks and Joseph P. Tracy 1928-9-8 8503 Humboldt Big Lagoon 6 Comment
  HSC32442  Castilleja ambigua subsp. humboldtiensis Linda M. Barker 1974-4-14 143 Humboldt South G St., Arcata 0 Comment
  HSC95751  Castilleja ambigua subsp. humboldtiensis Thomas W. Nelson, Jane P. Nelson 2004-4-20 9182 Humboldt At estuary to Elk River, SE of mouth 2 Comment
  JEPS3825  Castilleja applegatei subsp. martinii Joseph P. Tracy 1938-5-1 15732 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS8683  Castilleja applegatei subsp. martinii Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC1011932  Castilleja applegatei subsp. pinetorum F. W. Pennell and J. P. Tracy 1940-7-7 26097 Humboldt w of Salyer; Grouse Mountain 1493 Comment
  UC168996  Castilleja attenuata Mrs. M. H. Manning May 1902 Humboldt Hupa Comment
  CHSC95387  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Humboldt County. Manila Dunes ACEC. 3 Comment
  JEPS10343  Castilleja exserta subsp. latifolia Joseph P. Tracy with Dr. F. W. Pennell 1940-7-6 16659 Humboldt Table Bluff, w foot of bluff Table Bluff 6 Comment
  JEPS3683  Castilleja exserta subsp. latifolia Joseph P. Tracy 1925-8-14 7230 Humboldt 2-3 mi n Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  RSA15566  Castilleja litoralis Carl B. Wolf 1927-8-29 1195 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  RSA221712  Castilleja litoralis Noel Holmgren, Liew Fah Seong 1969-6-24 3611 Humboldt 5.6 miles west of Ferndale. Comment
  HSC73640  Castilleja pruinosa M. A. Baker 1980-7-23 3169 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS26532  Castilleja pruinosa Joseph P. Tracy Jun 1901 1485 Humboldt Klamath River; North Coast Ranges 426 Comment
  UC26418  Castilleja pruinosa Harley P. Chandler Jun 1901 1485 Humboldt Klamath River; North Coast Ranges 426 Comment
  JEPS103928  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7876 Humboldt Horse Mt. Comment
  UC1193335  Ceanothus cordulatus P. Zinke 1950-10-9 77 Humboldt King Peak King Peak Quad. 28D1 1280 Comment
  UC1071074  Ceanothus cuneatus var. cuneatus A. E. Wieslander 1931-5-19 201 Humboldt near Orleans. Hoopa quad., Klamath Nat. For. Comment
  UC275318  Ceanothus foliosus Joseph P. Tracy 1923-6-20 6322 Humboldt Chamisal Mountain, near Shelter Cove 304 Comment
Read comments
Aug 4 2016
  CAS-BOT-BC50052  Ceanothus incanus H. E. McMinn 1922-8-3 382 Humboldt South Fork Eel River Comment
  POM282970  Ceanothus incanus Lyman Benson 1929-7-11 1785 Humboldt S of Garberville Comment
  UC1193320  Ceanothus incanus P. Zinke 1950-8-4 150 Humboldt 2 mi n Harris Postoffice; Quad. 29D3 883 Comment
  SBBG116570  Ceanothus integerrimus D. Wilken with E. Painter 2003-7-16 16151 Humboldt State Hwy 96, between Muddy and Weitchpec Crks, just E of Weitchpec 70 Comment
  UC33627  Ceanothus integerrimus Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  UCR270274  Ceanothus integerrimus John F. Emmel 2003-7-30 1800 Humboldt near southeast boundary of Redwood National Park, Bald Hills Road, 19.5 road miles SE of Hwy 101 960 Comment
  SEINET12211379  Ceanothus integerrimus var. californicus F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -306 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC97627  Ceanothus integerrimus var. integerrimus Cara Witte 2007-6-5 209 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.25 miles south of intersection with 5N04. 1405 Comment
  CDA36054  Ceanothus integerrimus var. macrothyrsus CDFA Staff 1977-6-21 Humboldt Willow Creek. 0 Comment
  UC502957  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Willow Creek Trinity River Valley, Northern Coast Ranges 152 Comment
  UC176049  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1913-6-27 4354 Humboldt Near Bridgeville McClellan Mountain, Northern Coast Ranges 457 Comment
  UC203857  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-7-3 4986 Humboldt Wilder Ridge Northern Coast Ranges 457 Comment
  HSC37086  Ceanothus parryi R. Sutherland 1975-5-20 4 .20575 Humboldt 122 Comment
  UC502946  Ceanothus parryi Joseph P. Tracy 1932-5-1 9865 Humboldt vicinity Garberville; Northern Coast Ranges, vicinity of Garberville 121 Comment
  CAS-BOT-BC52046  Ceanothus prostratus Doris K. Kildale 1926-4-25 1811 Humboldt Hoopa Mountain 792 Comment
  CAS-BOT-BC53062  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17526 Humboldt Willow Creek Canyon, along Trinity Highway 609 Comment
  RSA46912  Ceanothus thyrsiflorus Doris K. Kildale 1926-6-28 2183 Humboldt Bluffs above Big Lagoon Comment
  UC1193281  Ceanothus thyrsiflorus K. Cuff 124 Humboldt 8 mi e Petrolia; Quad. 28A3 60 Comment
Read comments
Jul 25 2009
  OBI44966  Ceanothus thyrsiflorus var. thyrsiflorus Midred J. Cady 1938-7-14 s.n. Humboldt Near Trinidad Comment
  HSC44507  Ceanothus velutinus Brad Klipfel 1973-7-1 120 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CDA35602  Ceanothus velutinus T. C. Fuller, T. Gallion 1959-7-23 2817 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  UC582508  Centaurea X moncktonii Joseph P. Tracy 1933-8-22 12973 Humboldt at Eureka Comment
  CAS-BOT-BC277179  Centaurea X pouzinii T. C. Fuller 1960-8-25 4974 Humboldt Around Pacific Lumber Co. barn, across Eel River from South Fork Comment
  UC582524  Centaurea benedicta Joseph P. Tracy 1928-10-7 8515 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC673087  Centaurea calcitrapa Joseph P. Tracy 1940-10-17 16760 Humboldt near Dyerville (South Fork Station) 45 Comment
  CDA7313  Centaurea pratensis T. C. Fuller 1961-9-28 7046 Humboldt Opposite 2827 Hubbard Lane, one half block west of Harris Street at Redwood Acres Park. 0 Comment
  UC1199119  Centaurea solstitialis Joseph P. Tracy 1931-10-18 9735 Humboldt 2 to 5 mi e of South Fork (Camp Grant, along Eel River); Eel River 45 Comment
  UC302186  Centaurea solstitialis Joseph P. Tracy 1926-8-22 7772 Humboldt McClellan Mountain North Coast Ranges, McClellan Mountain 609 Comment
  RSA12461  Centaurium muehlenbergii Carl B. Wolf 1934-6-30 5832 Humboldt One half mile from Briceland on road to Garberville. 91 Comment
  UC1198614  Centunculus minimus Joseph P. Tracy 1934-6-23 13254 1/2 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  HSC103128  Cephalanthera austiniae M. Mesler 2009-7-31 812 Humboldt South Fork Mtn. FS 1, 11.8 miles north of intersection with 4N12, just north of mile marker 34. 1486 Comment
  UC1196467  Cephalanthera austiniae Joseph P. Tracy 1948-8-15 18149 Humboldt on ridge 2 mi. e. Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  UC1196468  Cephalanthera austiniae Joseph P. Tracy 1926-6-6 7581 Humboldt near summit on rd. w. from Hoopa to Bair's (Hoopa Mt.); Northern Coast Ranges, Hoopa Mt. 1066 Comment
  CAS-BOT-BC384900  Cerastium arvense Doris K. Kildale 1929-5-26 9142 Humboldt Klamath River at Orleans 152 Comment
  CAS-BOT-BC384905  Cerastium arvense Kenneth Clark 1980-4-18 599 Humboldt Shelter Cove. Above Dead Man's Gulch 175 Comment
  UC161007  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1907-5-20 2561 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC74273  Cerastium glomeratum M. A. Baker 1980-5-23 1381 Humboldt Near Buck Mtn. 1524 Comment
  UC161008  Cerastium glomeratum Joseph P. Tracy 1900-5-24 803 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC527564  Cercis occidentalis C. B. Wolf 1931-8-31 2380 Humboldt Sandy Bar Swimming Hole South Fork of Trinity River (slopes on w side of river 1 mi above its mouth) 243 Comment
  CAS-BOT-BC135531  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1946-7-7 17612 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC97628  Chaenactis douglasii var. douglasii Cara Witte 2007-6-12 241 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1311 Comment
  CAS-BOT-BC284539  Chaenactis glabriuscula var. heterocarpha Volney Rattan 1886-6-1 s.n. Humboldt Ukiah Comment
  CAS-BOT-BC85653  Chamaecyparis lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762 Comment
  HSC31650  Chamaecyparis lawsoniana Timothy B. Devine 1974-5-4 320 Humboldt 1/4 mi. N of junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC45913  Chamaecyparis lawsoniana Jerome Peterson 1978-5-1 10 Humboldt Near corner of 8th and G St. in Arcata Comment
  UC1199377  Chamaemelum nobile J. P. Tracy 1896-8-7 14 Humboldt immediate vicinity of Eureka (on streets in Eureka, J Street) 0 Comment
  CDA30198  Chamaesyce maculata M. K. Beyers, I. Shepardson 2009-9-13 237 Humboldt In dry portion of the eastern side of the Eel River, east of State Route 254 (Avenue of the Giants) and Highway 101. Just west of the unincorporated community of Shively. 0 Comment
  HSC12553  Chamerion angustifolium subsp. circumvagum D. La Conte 1970-7-7 28 Humboldt Comment
  HSC76201  Chamerion angustifolium subsp. circumvagum Overton, Butler 1979-8-2 12521 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC423060  Chamerion angustifolium subsp. circumvagum Chesnut and Drew 1888-7-15 Humboldt Arcata Comment
  UC582918  Chenopodium botrys P. A. Munz 1936-8-9 14334 Humboldt Williams Redwood Grove South Fork of Eel River Comment
  RSA246903  Chenopodium multifidum R. F. Thorne, P. Everett 1965-8-5 35168 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC451386  Chimaphila menziesii Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Nat. Trail 1524 Comment
  CAS-BOT-BC451495  Chimaphila umbellata M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N of Garberville Comment
  CAS-BOT-BC452227  Chimaphila umbellata Volney Rattan 1878-6-1 s.n. Humboldt North of Mad River Comment
  UC21656  Chimaphila umbellata Bolander June 1867 6543 Humboldt Parker's Station, Eureka Trail Comment
  UCD138429  Chlorogalum pomeridianum Joseph P. Tracy 1946-7-7 17611 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  UCSB34195  Chloropyron maritimum subsp. palustre Kearns, Dennis 1979-8-24 Humboldt Spring Tide area of Arcata Bay, on edge of South end of "I" Street near the Arcata Boat Launching Facility Comment
  POM351629  Chrysanthemum leucanthemum B. C. Templeton 1964-6-13 10185 Humboldt North of Patrick's Point on Hwy. 101 Comment
  POM87953  Chrysanthemum leucanthemum L. R. Abrams, R. C. Bacigalupi 1922-6-25 8262 Humboldt Between Trinidad and Big Lagoon Comment
  HSC70637  Chrysolepis chrysophylla R. York 1980-5-18 597 Humboldt Near Black Mtn. 792 Comment
  RSA246878  Chrysolepis chrysophylla Robert F. Thorne, P. Everett 1965-8-5 35134 b Humboldt Mt. Chamisal: below summit. 747 Comment
  HSC36884  Chrysosplenium glechomifolium J. P. Smith, Thomas W. Nelson 1976-4-27 8616 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  CAS-BOT-BC279831  Cichorium intybus Doris K. Kildale 1926-7-22 2428 Humboldt Metropolitan Comment
  HSC95389  Cicuta douglasii Andrea Pickart 2002-7-19 187 Humboldt Arcata Marsh in Log Pond 10 Comment
  SD58270  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt Marsh south of Salmon Creek Comment
  HSC55687  Circaea alpina subsp. pacifica Overton, Butler 1979-7-26 9970 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  HSC97984  Circaea alpina subsp. pacifica Cara Witte 2007-7-11 507 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UC562518  Circaea alpina subsp. pacifica Joseph P. Tracy 1936-8-7 15088 Humboldt head of Little Hors-Linto Creek (Trinity Summit); Trinity Summit 1371 Comment
  RSA245007  Circaea alpina subsp. pacifica William J. Ferlatte, B. D. Rogers 1966-6-15 2095 Humboldt East of Bridge ville on Highway 36 671 Comment
  NY370205  Cirsium arvense L. Abrams 1916-7-11 6034 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  SEINET3442935  Cirsium cymosum T. H. Haig 1960-6-16 Humboldt Kneeland, Kneeland Comment
  SEINET202652  Cirsium douglasii var. canescens H. E. Parks, S. T. Parks 24441 Humboldt South Fork Camp Willow Creek. 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
  UC129598  Cirsium occidentale var. candidissimum Mrs. M. H. Manning Jul 20 1901-Jul 30 1901 Humboldt near Hupa; Bald Hill Comment
  UC204833  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  UC176413  Cirsium occidentale var. venustum Joseph P. Tracy 1913-6-20 4216 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in valley in Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  SEINET11836350  Cirsium pastoris J. P. Tracy 1942-1 17302 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA0070876  Cirsium remotifolium Joseph P. Tracy 1921-7-31 5860 Humboldt Table Bluff. 121 Comment
  HSC98726  Cirsium remotifolium var. odontolepis Cara Witte 2008-7-2 806 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  CAS-BOT-BC285771  Cirsium vulgare John Thomas Howell 1931-6-17 6723 Humboldt Redwood Highway 1 1/2 miles n. of Orick Comment
  RSA47110  Cirsium vulgare Doris K. Kildale 1925-9-22 1323 Humboldt Fickle Hill above Arcata Comment
  CAS-BOT-BC160964  Clarkia amoena subsp. amoena Peter H. Raven; R. Snow 1958-7-21 13656 Humboldt 7.2 miles north-west of Capetown on road to Ferndale Comment
  UC144074  Clarkia amoena subsp. amoena Joseph P. Tracy 1909-7-31 3026 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  BLMAR1  Clarkia amoena subsp. amoena Jennifer Anthony-Wheeler 1993-7-30 1 Humboldt King range, growing scattrd through coastal grassland along smith-etter 15 Comment
  JEPS43549  Clarkia amoena subsp. amoena W. L. Jepson 1902-8-3 2141 Humboldt near Capetwon; Bear River 182 Comment
  POM208994  Clarkia amoena subsp. huntiana Lincoln Constance 1934-5-23 618 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park. 366 Comment
  RSA0059976  Clarkia amoena subsp. huntiana Harlan Lewis, M. Lewis 1947-6-12 424 Humboldt U.S. Highway 101, 4.8 miles north of Ohman Creek Bridge (4-07) Comment
  HSC32855  Clarkia concinna subsp. concinna Thomas W. Nelson, James Nelson 1973-5-28 938 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS43694  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1936-6-10 14935 Humboldt mountain slopes w of mouth South Fork Trinity River 609 Comment
  LA47440  Clarkia gracilis subsp. gracilis Joseph P. Tracy; 1912-7-31 3907 Humboldt Burr Valley, on NW slope of Buck Mountain 1066 Comment
  UC183693  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1913-6-11 4091 Humboldt lower foothills on nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  CDA38034  Clarkia purpurea subsp. quadrivulnera T. R. Haig 1960-6-19 s.n. Humboldt Kneeland School. 0 Comment
  HSC98078  Clarkia purpurea subsp. viminea Cara Witte 2007-7-3 401 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  POM247175  Clarkia purpurea subsp. viminea Joseph P. Tracy 1936-6-10 14924 Humboldt South Fork Trinity River; mountain slopes west of its mouth 457 Comment
  RSA297004  Clarkia purpurea subsp. viminea Lincoln Constance 1934-5-23 619 Humboldt South Fork Eel River: upper end of Look Prairie 366 Comment
  CAS-BOT-BC164823  Clarkia rhomboidea Doris K. Kildale 1928-6-24 5292 Humboldt Horse Mountain road near junction of Willow Creek road 853 Comment
  HSC67184  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5435 Humboldt Along E side of Red Mtn. 1372 Comment
  UC183596  Claytonia exigua subsp. glauca Joseph P. Tracy 1913-5-4 4049 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC494115  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  CAS-BOT-BC443886  Claytonia sibirica Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  UC672992  Claytonia sibirica Joseph P. Tracy 1936-8-24 15174 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UCR86959  Claytonia sibirica Walter Wisura 1993-5-9 4909 Humboldt Northwest; Hwy 299, 5.7 mi west of Willow Creek at E-fork camp ground 730 Comment
  CAS-BOT-BC443898  Claytonia sibirica C. E. Etienne 1972-9-4 s.n. Humboldt Lumber road to Klamath River, ca 8 mi. inland and 1 mi. N of the Humboldt Co. line. 30 Comment
  HSC17727  Claytonia sibirica D. K. Smith 1968-4-8 14 Humboldt On West End Rd., 3 mi. from Hwy. 299 Comment
  RSA168883  Claytonia sibirica Joseph P. Tracy 1951-6-21 19521 Humboldt Everett Beck s house, Hydesville Comment
  HSC49793  Clintonia andrewsiana R. York 1979-4-21 242 Humboldt Behind the town of Korbel Comment
  JEPS61601  Clintonia andrewsiana W. L. Jepson 1921-9-11 9462 Humboldt n of Garberville Comment
  SEINET12050375  Clintonia andrewsiana F. H. Utech 1988-1 88 -274 Humboldt 14 mi W of Bridgeville to Carlotta on CA 36, Mi 11.40, Van Duzen County Park, along Van Duzen River 50 Comment
  HSC54022  Clintonia uniflora Griswold, Butler 1979-7-12 7181 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC98773  Clintonia uniflora Cara Witte 2008-7-7 840 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  UC1103459  Clintonia uniflora Joseph P. Tracy 1936-6-28 15018 1/2 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1219 Comment
  RSA12552  Clintonia uniflora Carl B. Wolf 1934-7-2 5887 Humboldt Snow camp. (Mts. east of Korbel) 1372 Comment
  JEPS115074  Coincya monensis subsp. recurvata Andrea Pickart 2009-2-20 729 Humboldt Manila Dunes; End of Lupine Ave. 15 Comment
  SBBG27286  Collinsia grandiflora H. E. Parks, J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley (Larabee Valley) 762 Comment
  JEPS13364  Collinsia linearis Harold E. Parks 1934-6-14 4789 Humboldt ca 11 mi air-line ssw Willow Creek (Horse Mtn); Horse Mtn. 1432 Comment
  HSC102110  Collinsia parviflora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1013 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC48759  Collinsia parviflora Brad Klipfel 1973-6-10 73 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC40672  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-7-1 2929 Humboldt Along beanch to W of Mt. Lassic (Signal Peak) 1677 Comment
  HSC70957  Collinsia parviflora Thomas W. Nelson 1977-6-15 3432 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  UC673102  Collinsia rattanii Joseph P. Tracy 1940-5-17 16552 Humboldt Larrabee Valley 731 Comment
  JEPS26356  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1916-5-2 4685 Humboldt garden Eureka; North Coast Ranges 762 Comment
  UC1196850  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3628 Humboldt near Hydesville (hillside between Alton and Hydesville); Northern Coast Region 30 Comment
  UC427878  Collinsia sparsiflora var. sparsiflora H. E. Parks and J. P. Tracy 1930-5-25 792 Humboldt Larabee Valley 792 Comment
  HSC100663  Collinsia tenella Carl C. Marshall Apr 1887 369 Humboldt Hoopa Valley. Comment
  HSC81772  Collinsia torreyi var. torreyi Thomas W. Nelson, James Nelson 1980-6-10 5409 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  HSC63485  Collomia grandiflora M. A. Baker 1977-6-20 388 Humboldt Weitchpec Comment
  UC1197854  Collomia grandiflora Joseph P. Tracy 1911-7-10 3498 Humboldt near Willow Creek (hillslopes at w side of Trinity River); Northern Coast Ranges 304 Comment
  UC1197837  Collomia heterophylla Joseph P. Tracy 1947-7-5 17791 Humboldt ridge top one mi w Mud Springs; Trinity Summit 1158 Comment
  UC879765  Collomia heterophylla Elizabeth Parsons Hawver 1915-6-1 Humboldt Carlotta Comment
  SBBG103147  Collomia tracyi D. H. Wilken with C. Donahue 1976-7-16 12708 Humboldt Horse Mtn Natural Area, N of Berry Summit 1310 Comment
  UC1197863  Collomia tracyi Joseph P. Tracy 1932-7-13 10517 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  UC907814  Collomia tracyi Joseph P. Tracy 1939-8-5 16372 Humboldt in sand bar Van Duzen River, Dinsmore's 737 Comment
  UC978537  Collomia tracyi Milo S. Baker July, 1923 102 Humboldt near Carlotta; Van Duzen River bed Comment
  BLMAR298  Comarum palustre Jennifer Anthony-Wheeler 2002-7-23 298 Humboldt Headwaters Forest Reserve, growing in a pond with large floating logs 426 Comment
  HSC65326  Convolvulus arvensis J. P. Smith 1973-5-26 6810 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1123583  Convolvulus arvensis H. L. Person 1932-8-1 Humboldt Korbel Eureka Quadrangle Comment
  UC562291  Convolvulus arvensis Joseph P. Tracy 1934-7-15 13407 Humboldt near Fields Landing; North Coast Ranges, around Humboldt Bay 6 Comment
  HSC25946  Convolvulus arvensis Thomas W. Nelson 1970-12-1 289 Humboldt 1 mi. N of the N Rio Dell bridge over the Eel River Comment
  UCSC000566  Convolvulus soldanella H. S. Yates 1936-6-16 5657 Humboldt 0.5 mile S.W. of Samoa Samoa - Eureka 3 Comment
  HSC103475  Coptis laciniata Thomas W. Nelson, Jane Nelson 1987-6-11 8523 Humboldt Along Forest Service Rd. 13N01 at Blue Lake, 6.7 mi. from junction with State Route 96. 671 Comment
  HSC104334  Coptis laciniata James Regan, Humboldt Redwood Co., LLC 2009-4-1 33 Humboldt Snow Camp Rd., Bald Mtn. Creek Comment
  UC14965  Corallorhiza maculata P. E. Goddard 1901-7-8 29 Humboldt Hupa Valley Comment
  UCD138919  Corallorhiza maculata Kenneth D. Stewart 1965-7-13 s.n. Humboldt U.S. Highway 299, ca. 20 miles east of Blue Lake. Comment
  JEPS6033  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1938-7-15 16064 Humboldt borders of salt marsh at Fields Landing, around Humboldt Bay Humboldt Bay; Northern Coast Region 3 Comment
  UC1222818  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1950-6-17 18839 a Humboldt slough at railroad bridge (salt marsh); Eureka Comment
  JEPS25066  Cordylanthus pilosus subsp. pilosus Joseph P. Tracy 1912-8-3 3977 Humboldt opposite Buck Mt.; Valley of Van Duzen River 762 Comment
  UC936241  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1949-8-4 18411 Humboldt Mud Springs Trinity Summit 1341 Comment
  RSA125370  Corethrogyne filaginifolia var. californica Peter H. Raven, R. Snow 1958-7-21 13658 Humboldt 2 miles north of Cape Mendocino Comment
  RSA46901  Cornus californica Doris K. Kildale 1925-6-27 769 Humboldt Yager - near mouth. Comment
  UC630635  Cornus canadensis Joseph P. Tracy 1939-7-9 16321 Humboldt Bald Mountain. at Lake Prairie Bald Mountain 1066 Comment
  HSC59488  Cornus nuttallii M. A. Ericksen 1979-4-28 237 Humboldt Across from Bigfoot statue on left side of Hwy. 299, into Willow Creek from the west. Comment
  CAS-BOT-BC210541  Cornus sessilis Doris Kildale Gillespie 1941-4-16 s.n. Humboldt Unspecified Comment
  HSC6422  Cornus sessilis J. P. Tracy 1941-3-26 16846 Humboldt Four-Mile Creek near mouth of S Fork Trinity River. 610 Comment
  HSC28085  Coronopus didymus David Johnson 1973-11-27 Humboldt S side of Samoa Cookhouse Comment
  UCD59806  Cortaderia selloana D. W. Cooper 1967-10-1 Humboldt Big Lagoon. 76 Comment
  UC1197931  Corylus californica Mary Harriet Tracy 1946-5-30 Humboldt 5 mi E of Carlotta (Riverside Park) 30 Comment
  UC176170  Corylus californica Joseph P. Tracy 1912-3-3 3560 Humboldt on West place, between Eureka and Fields Landing Northern Coast Region 0 Comment
  CAS-BOT-BC172849  Corylus cornuta subsp. californica Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick Comment
  CAS-BOT-BC180305  Corylus cornuta subsp. californica Carl D. Duncan 1920-9-27 s.n. Humboldt Hoopa Comment
  HSC58352  Corylus cornuta subsp. californica Overton, Butler 1979-8-2 12690 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UCD110089  Corylus cornuta subsp. californica J. Street 1950-6-24 s.n. Humboldt Honeydew. Comment
  CAS-BOT-BC143487  Cotoneaster franchetii Peter F. Zika 2007-7-20 23323 Humboldt Lynda Lane near high school, S end of Big Lagoon, (NCo, North Coast) 20 Comment
  HSC43416  Cotula coronopifolia R. Sutherland 1978-2-18 5 .18278 Humboldt S side mouth of Mattole River 8 Comment
  UC1198827  Crassula connata var. subsimplex Joseph P. Tracy 1940-4-7 16528 Humboldt near Samoa on Humboldt 6 Comment
  HSC58161  Crepis acuminata G. L. Clifton, Griswold 1979-8-2 12224 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  JEPS36416  Crepis capillaris W. L. Jepson 1932-8-8 16531 Humboldt near Dyerville; Perrott Creek 304 Comment
  UC1787277  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North coastal strand.: North spit of Samoa Peninsula, 0.5 mi N of CA-225 bridge over Humboldt Bay. 6 Comment
  UC1787278  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6992 Humboldt North coast redwood area; CA-36, along the Van Duzen R. 19.6 mi E of US-101 (W of Bar W rd). 137 Comment
  HSC72961  Crepis pleurocarpa Gail Newton 1980-7-14 1481 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC44131  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3599 Humboldt Along old trail N of Alder Spring 1555 Comment
  HSC98848  Crepis pleurocarpa Cara Witte 2008-7-11 871 Humboldt National Forest Road 6N36. 1/4 mile from intersection with National Forest 1. 1443 Comment
  UC1981756  Crepis setosa R. Spellenberg, N. Zucker 2011-7-24 14298 Humboldt Miranda, on the W side of highway in center of town. Comment
  UC1364266  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt 1 mi s Fields Landing (nw corner of overpass of Hwy 101 freeway to Garberville) Comment
  UC162944  Cupressus lawsoniana Joseph P. Tracy 1911-7-6 3341 Humboldt mountain slopes along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  JEPS43034  Cuscuta californica Lincoln Constance 1934-6-15 883 Humboldt Summit of Grasshopper Peak South Fork Eel River, Bull Creek Region, Grasshopper Peak 975 Comment
  CDA39929  Cuscuta campestris E. C. Whitney 1962-9-17 s.n. Humboldt W.E. Bartlett property, Shively. 0 Comment
  UC1409175  Cuscuta salina var. major Robert F. Thorne and P. Everett 1965-8-8 35280 Humboldt e of Hwy. 101 (n edge of Eureka); Eureka 3 Comment
  JEPS93172  Cuscuta salina var. major Margriet Wetherwax and Kevin Downing 1993-8-9 2459 Humboldt on E side of Humboldt Bay, just N of Eureka; S side of Eureka Slough, near Bayside Road and Myrtle. Marsh at end of the road to church 5 Comment
  SEINET943383  Cuscuta salina var. major C. C. Harris, S. K. Harris 1941-1 1175 Humboldt In Illinois Biol. Monogr. Vi. 161, fig. 32 a-e, 121, 140 (1921) et in Mem. Torrey Bot. Club, xviii. 168, fig. 42 F (1932). Comment
  UC1197870  Cuscuta subinclusa Joseph P. Tracy 1927-7-17 8287 Humboldt near Bug Creek (Ahlgren's, on Mad River); Mad River 457 Comment
  UC906653  Cyclospermum leptophyllum Joseph P. Tracy 1946-7-13 17613 Humboldt vicinity Carlotta 30 Comment
  HSC3641  Cynoglossum grande A. H. Teshima 1963-3-10 5 Humboldt Moonstone Beach area Comment
  HSC3644  Cynoglossum grande Jack Rockwell 1962-5-4 47 Humboldt E side road, 0.5 mi. from Kneeland 457 Comment
  RSA24187  Cynoglossum grande C. B. Wolf 1941-3-2 9987 Humboldt N Coast Range. Bull Creek-Petrolia Road. 12 miles W of Redwood Highway. 457 Comment
  HSC100403  Cynoglossum grande Carl C. Marshall May 1886 160 Humboldt Vicinity of Humboldt Bay. Comment
  UC175683  Cynoglossum occidentale Joseph P. Tracy 1911-7-7 3424 Humboldt near summit Brannan Mt. (ridge n. of Willow Creek, between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mt. 1219 Comment
  CAS-BOT-BC190379  Cynosurus echinatus H. E. Parks; Joseph P. Tracy 1933-6-11 12542 Humboldt Northern Coast Ranges. Near Miranda. 152 Comment
  HSC38430  Cynosurus echinatus Dennis Anderson, J. P. Smith 1971-6-18 - 1061 Humboldt Chezem Rd., 3 mi. E of bridge over Redwood Creek Comment
  HSC49104  Cynosurus echinatus Thomas W. Nelson, Jane P. Nelson 1978-7-3 4413 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC96372  Cyperus parishii Gordon Leppig 2004-9-6 2197 Humboldt E bank of Trinity River, across river from the Loncar Summer Estate, 3.5 km N of Willow Creek 120 Comment
  UC668036  Cyperus squarrosus Joseph P. Tracy 1931-9-7 9662 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC100390  Cystopteris fragilis Carl C. Marshall 454 Humboldt Road between Harris and Garberville. Comment
  JEPS71177  Dactylis glomerata W. L. Jepson 1936-8-13 17893 Humboldt South Fork Eel River Phillipsville; South Fork Eel River Comment
  CAS-BOT-BC189736  Danthonia californica Joseph P. Tracy 1930-6-21 8772 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  CAS-BOT-BC94774  Danthonia californica R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 838 Humboldt Humboldt Redwoods State Park. Pole Line Prairie, along Pole Line Road, 1 air mile N of Mattole Road, 6 air miles E of 274 Comment
  UC1152022  Danthonia californica Joseph P. Tracy 1951-6-26 19572 Humboldt Snow Camp and Twin Lakes vicinity Comment
  UCD60964  Danthonia californica Joseph P. Tracy 1951-6-26 19571 a Humboldt Snow Camp and Twin Lakes vicinity. Comment
  UC249629  Darmera peltata Joseph P. Tracy 1921-9-4 5958 Humboldt mouth of South Fork of Trinity River; Northern Coast Ranges 152 Comment
  JEPS45729  Datisca glomerata Lincoln Constance 1934-6-11 857 Humboldt along South Fork Eel River, N. Dyerville Flat South Fork Eel River; Bull Creek Region, South Fork Eel River Comment
  UC505103  Datisca glomerata Joseph P. Tracy 1932-9-18 10805 Humboldt Blue Slide on Van Duzen River Blue Slide; Northern Coast Ranges, Van Duzen River, Blue Slide 91 Comment
  RSA43886  Daucus carota H. M. Pollard 1948-8-7 s.n. Humboldt Near Orleans Comment
  HSC38938  Daucus pusillus Linda M. Barker 1976-5-13 1486 Humboldt 3 mi. W of Arcata. Comment
  UC1197351  Daucus pusillus J. P. Tracy 1899-7-22 275 Humboldt Eureka Comment
  UC249612  Daucus pusillus Joseph P. Tracy 1921-7-10 5845 Humboldt near ocean Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  HSC102079  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 981 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC9026  Delphinium decorum subsp. tracyi John Rehling 1975-5-12 71 Humboldt Bald Hills, 2 miles up Williams Ridge Road. Comment
  HSC100367  Delphinium decorum subsp. tracyi J. McRae 2010-6-23 Humboldt Jones Ridge off F.S. Rd. 27N02. 1433 Comment
  RSA296867  Delphinium decorum subsp. tracyi Joseph P. Tracy 1918-5-28 4941 Humboldt High Prairie on Bald Mtn. Comment
  UC183703  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4156 Humboldt streamlet near summit Northern Coast Ranges, Buck Mountain 1219 Comment
  UC1225748  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC9954  Delphinium nudicaule Doris K. Kildale 1928-6-24 5288 Humboldt Horse Mountain 853 Comment
  HSC25008  Delphinium nudicaule J. Sandborg, F. Sandborg Jun 1968 16 Humboldt Bluff Creek near Notice Creek 793 Comment
  HSC25010  Delphinium nudicaule G. N. Bos 1965-5-15 270 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  UC1196332  Delphinium nudicaule Joseph P. Tracy 1921-6-19 5830 Humboldt Berry Mtn. Northern Coast Ranges 914 Comment
  HSC73733  Delphinium nuttallianum M. A. Baker 1980-7-19 3019 Humboldt Near Bret Hole. 1814 Comment
  CAS-BOT-BC121968  Delphinium trolliifolium Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC48786  Delphinium trolliifolium Brad Klipfel 1975-6-17 661 Humboldt Along Titlow Hill Rd. Comment
  RSA254789  Delphinium trolliifolium Thomas W. Nelson, James Nelson 1973-5-28 942 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1334518  Delphinium trolliifolium G. A. L. Mehlquist and J. A. Jenkins 1940-5-29 9 Humboldt 1 1/2 mi n Kneeland Comment
  UC13904  Delphinium trolliifolium W. C. Blasdale 1896-6-7 Humboldt Graham's Ranch Comment
  UC9230  Delphinium trolliifolium Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5615 Humboldt near Acorn Comment
  UCD61369  Deschampsia cespitosa A. H. Murphy 1951-5-29 48 Humboldt About 1 mile northeast of Ocean House, along County Road, Cape Mendocino Area. Comment
  SEINET4566835  Deschampsia cespitosa J. Davy, W. Blasdale 1899-1 6213 Humboldt Eureka Comment
  UCR32148  Deschampsia cespitosa subsp. beringensis David J. Keil 1983-7-2 17301 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard [600 G St.] Comment
  CAS-BOT-BC194290  Deschampsia cespitosa subsp. cespitosa Doris Kildale 1931-5-10 10679 Humboldt Snow Camp Comment
  CAS-BOT-BC194295  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1904-7-31 2129 Humboldt Eureka 60 Comment
  UC1131441  Deschampsia danthonioides H. S. Yates 1936-6-17 5718 Humboldt Burr Valley South Fork Peak Quad., Burr Valley Comment
  CAS-BOT-BC201773  Deschampsia elongata Doris K. Kildale 1927-7-22 3825 Humboldt Lassecks Peaks near Corral Camp 1661 Comment
  HSC58666  Deschampsia elongata G. L. Clifton, Griswold 1979-8-1 12080 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  JEPS72936  Deschampsia elongata Lincoln Constance 1934-5-31 747 Humboldt along Bull Creek from w. boundary of Park to Grasshopper Peak (Bull Creek Flat, Squaw Cr. rd., n. side of creek); Bull Creek Region, S. Fork Eel River Comment
  UC1541536  Deschampsia elongata Harold E. Parks May 1931 3232 a Humboldt Big Lagoon Comment
  HSC22512  Dicentra formosa G. N. Bos 1965-5-2 236 Humboldt 5 mi. E of Korbel on Bald Mtn. Rd. 732 Comment
  SEINET12805277  Dicentra formosa John D. Freeman, Ruth F. Freeman 1967-1 586 Humboldt Just w of Cal Hwy 36 and just N of Carlotta 43 Comment
  UC198594  Dicentra formosa Joseph P. Tracy 1917-5-13 4781 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC503032  Dicentra formosa Joseph P. Tracy Jul 16 1930-Jul 19 1930 9042 Humboldt near Blake Lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 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
  SEINET202038 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1939-7-9 16323 Humboldt Bald Mountain at Lake Prairie Comment
  RSA10045  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA152289  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1942-7-18 17286 Humboldt 1/2 mile N. E of Garberville 30 Comment
  HSC3000  Dichelostemma capitatum subsp. capitatum Paul Shields May 1955 Humboldt Horse Mountain Comment
  HSC32860  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, James Nelson 1973-5-28 939 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC45650  Dichelostemma capitatum subsp. capitatum Diane L. Reed 1978-4-22 15 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC97477  Dichelostemma capitatum subsp. capitatum Cara Witte 2007-5-21 65 Humboldt White Oak Opening. 1257 Comment
  CAS-BOT-BC501022  Dichelostemma ida-maia Henry M. Pollard 1946-8-16 s.n. Humboldt Across [Klamath] river from Orleans Comment
  HSC3032  Dichelostemma ida-maia Francis Winter 1960-5-7 Humboldt 1.0 mi. S of Tish-Tang Boy Scout Camp entrance 244 Comment
  UC1222689  Dichelostemma ida-maia Joseph P. Tracy 1950-6-15 18777 Humboldt 5 mi n Harris (on the Overland Road); Mail Ridge Comment
  CAS-BOT-BC500981  Dichelostemma multiflorum Doris K. Kildale 1927-7-3 3655 Humboldt Willow Creek Flat 152 Comment
  UC1145032  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River, near Slate Creek 121 Comment
  RSA54137  Digitaria sanguinalis Henry M. Pollard 1944-9-7 s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC150347  Diplacus aurantiacus Elmer I. Applegate 1923-9-12 3988 Humboldt Stone Lagoon, below Orick Comment
  SEINET13768897 Image available Diplacus aurantiacus C. L. Hitchcock, J. S. Martin 1939-1 5439 Humboldt Shelter Cove Comment
  SEINET8354549  Diplacus aurantiacus Unknown 1960-6-9 935 Humboldt 2 mi. s. Miranda; U.S. Hwy 101. 91 Comment
  CAS-BOT-BC153233  Diplacus kelloggii Dave Imper 1985-6-19 s.n. Humboldt Roadbed (10N01), 2 mi. west of Whitey's Peak 1066 Comment
  SEINET4170364  Disporum smithii Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15086 Humboldt Under Redwood, Bolling Grove State Park Comment
  UC666968  Disporum smithii Joseph P. Tracy 1933-5-21 12209 Humboldt McClellan Mountain 670 Comment
  CDA15326  Distichlis spicata R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Common to dominant perennial in grasslands around salt marsh near Loleta. 0 Comment
  UC38068  Distichlis spicata Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6211 Humboldt near Ferndale Comment
  HSC17858  Dodecatheon hendersonii D. E. Anderson 1965-5-1 3573 Humboldt Along Bluff Creek road about 2.5 mi. from its junction with Hwy. 96 Comment
  UC1243950  Downingia elegans Joseph P. Tracy 1947-6-28 17748 Humboldt Larrabee Valley 731 Comment
  UC34954  Downingia elegans Chesnut and Drew 1888-7-10 Humboldt near Jarnigan's Comment
  RSA79374  Draba verna E. K. Balls, Lee W. Lenz 1952-5-12 17200 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  HSC18764  Drymocallis glandulosa J. E. Lankila 1962-5-6 10 Humboldt West bank of Eel River across form Shively about 500 ft. from Bear Creek Comment
  HSC1034  Dryopteris arguta Gene S. Van Horn 1962-1-6 6 Humboldt 4 mi. E of Yager Cr. Bridge in Carlotta, on Hwy. 36, on bank overlooking the Van Duzen River 152 Comment
  HSC33655  Dryopteris arguta Margaret Weatherwax 1975-6-1 172 Humboldt Ward Rd. to Snow Camp Comment
  HSC61724  Dryopteris arguta Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan. 137 Comment
  UCSB30621  Dryopteris expansa Edwards, David 1974-9-2 Humboldt ca. 5ft N of dirt road, ca. 350 ft from its junction with Fickle Hill Rd., Arcata. 106 Comment
  HSC26394  Dudleya farinosa T. O. Osborne 1970-9-16 29 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC65126  Dysphania ambrosioides J. P. Smith 1971-10-6 4983 Humboldt End of Murray Rd. in McKinleyville. Comment
  SEINET5227018 Image available Dysphania botrys Unknown 2002-8-17 81 Humboldt On gravel bar in Eel River, 10 miles S of Garberville onHwy 101, at Benbow Drive. Comment
  UCD60874  Echinochloa crus-galli H. E. Parks Date Unknown 24213 Humboldt Spruce Cove, Trinidad. Comment
  UC666878  Eleocharis acicularis Joseph P. Tracy 1935-7-27 14298 Humboldt McKay Prairie Trinity Summit (along streamlet) 1584 Comment
  RSA152345  Eleocharis acicularis var. acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow s Prairie. 61 Comment
  UC666877  Eleocharis macrostachya Joseph P. Tracy 1934-7-30 13506 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon) 3 Comment
  HSC7308  Eleocharis macrostachya R. L. Jarvis 1962-4-7 11 Humboldt E of Hwy. 101, 4 mi. S of Eureka 0 Comment
  UC666875  Eleocharis obtusa Joseph P. Tracy 1927-8-7 8319 Humboldt Lack Pond, opposite mouth of Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC113134  Eleocharis pachycarpa Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon. Comment
  RSA246877  Eleocharis palustris Robert F. Thorne, Percy C. Everett 1965-8-9 35338 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  RSA53824  Eleocharis palustris Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans Region Comment
  HSC49506  Elodea canadensis R. York 1979-5-19 310 Humboldt Behind the Field House on the E side of the Humboldt State University campus, Arcata. Comment
  HSC9718  Elymus glaucus D. E. Anderson, T. O. Preston 1963-3-1 19 Humboldt Near bridge over Supply Creek. Comment
  CAS-BOT-BC203799  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon 6 Comment
  HSC9726  Elymus mollis subsp. mollis J. W. Johnson 1962-4-29 1297 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC70693  Elymus multisetus Gail Newton 1980-7-15 1560 Humboldt Near Sims Mtn. 1311 Comment
  RSA129486  Elymus multisetus H. S. Yates 1936-6-17 5722 Humboldt Near Burr valley; South Fork Pk. 915 Comment
  RSA10018  Elymus repens Joseph P. Tracy 1925-9-13 7267 Humboldt Mouth of Eel River 6 Comment
  UC1103294  Elytrigia repens Joseph P. Tracy 1937-8-13 15663 Humboldt Loleta 9 Comment
  CHSC110737  Enemion stipitatum Dean Wm. Taylor 2011-5-4 21117 Humboldt Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junction with Highway 36. 737 Comment
  RSA647553  Epilobium angustifolium subsp. circumvagum G. F. Orr 1953-8-15 s.n. Humboldt Patrick Point State Park, Trinidad Comment
  UC1122552  Epilobium brachycarpum H. L. Person 1932-8-8 Humboldt Freshwater Eureka Quadrangle Comment
  UC562418  Epilobium brachycarpum Joseph P. Tracy 1933-8-30 13034 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC43234  Epilobium brachycarpum R. Sutherland 1976-8-6 4 .6876 Humboldt 229 Comment
  UC314620  Epilobium campestre Joseph P. Tracy 1923-6-20 6341 Humboldt Miranda 91 Comment
  CDA30723  Epilobium ciliatum M. K. Beyers, I. Shepardson 2009-9-13 253 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC48320  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-8-3 311 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 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
  RSA181873  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1933-7-25 12835 Humboldt Grouse Mountain, North Coast Ranges 1524 Comment
  HSC16348  Epilobium ciliatum subsp. watsonii Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  HSC44595  Epilobium hallianum Brad Klipfel 1973-7-15 191 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC76622  Epilobium minutum Denis Kearns 1981-7-22 322 Humboldt Near Whiteys Peak. 1487 Comment
  HSC44405  Epilobium minutum R. York 1978-5-6 157 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  HSC45063  Epilobium minutum R. Sutherland 1978-4-23 17 .23478 Humboldt Kinsey Ridge near head 732 Comment
  UC314614  Epilobium minutum Joseph P. Tracy 1926-6-20 7617 Humboldt Horse Mountain Northern Coast Ranges (along streamlets) 1524 Comment
  HSC53953  Epilobium oreganum Terry Griswold, Marvin Butler 1979-7-11 7003 Humboldt Near Snow Camp Lake, close to the town of Willow Creek 1393 Comment
  JEPS31490  Epilobium oregonense Joseph P. Tracy 1935-7-26 14260 Humboldt Water Dog Lakes Trinity Summit (meadows) 1828 Comment
  UC562515  Epilobium oregonense Joseph P. Tracy 1935-7-26 14260 Humboldt Water Dog Lakes Trinity Summit (meadows) 1828 Comment
  UC1196952  Epilobium septentrionale Arthur E. Connick 1932-8-12 Humboldt Garberville 121 Comment
  UC204002  Epilobium torreyi Joseph P. Tracy 1918-7-6 5050 Humboldt near Humboldt-Mendocino County Line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  UC1198495  Epilobium torreyi Joseph P. Tracy 8744 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  HSC39177  Epipactis gigantea D. E. Anderson, J. P. Smith 1971-6-28 1224 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC1239790  Equisetum laevigatum Joseph P. Tracy 1931-3-26 9292 Humboldt near Alton (river bar of Van Duzen River); Northern Coast Region 30 Comment
  RSA44454  Eragrostis cilianensis Henry M. Pollard 1947-8-30 s.n. Humboldt Klamath River at Wilson Creek, near Orleans Comment
  CAS-BOT-BC299911  Erechtites minimus H. E. Parks 1931-9-1 1058 Humboldt Trinidad 76 Comment
  HSC32218  Erigeron foliosus var. confinis J. O. Sawyer 1970-6-24 2215 Humboldt Big Hill Rd., E of Hoopa 1189 Comment
  UC581723  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge Comment
  JEPS94286  Erigeron glaucus Vernon Oswald and Lowell Ahart 1997-9-4 8851 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  SBBG52999  Erigeron glaucus J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  UC166099  Erigeron glaucus J. P. Tracy 1900-7-4 888 Humboldt sand hills of ocean beach at Samoa (opp. Eureka) Comment
  HSC26467  Erigeron glaucus T. O. Osborne 1970-5-22 28 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  UC1199404  Erigeron klamathensis F. A. Graham and Joseph P. Tracy 1932-7-17 10696 Humboldt head Hors Linto Creek (rocky places at the lower end, Devils Hole); , Devils Hole 1524 Comment
  CAS-BOT-BC214581  Erigeron philadelphicus Volney Rattan No date on label s.n. Humboldt Mad River Comment
  CAS-BOT-BC214590  Erigeron philadelphicus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UCSB15446  Erigeron philadelphicus Breedlove, Dennis 1961-7-3 Humboldt Along Eel River, 7.4 miles north of Phillipsville 243 Comment
  JEPS41380  Erigeron philadelphicus var. philadelphicus Lincoln Constance 1934-5-26 685 Humboldt s end Dyerville Bridge; South Fork Eel River 45 Comment
  UC31516  Erigeron philadelphicus var. philadelphicus Hy Melde 1896-2-21 Humboldt Eureka Comment
  CAS-BOT-BC300278  Erigeron strigosus var. strigosus L. R. Abrams 1918-6-16 7174 Humboldt Willow Creek Comment
  UC176758  Erigeron strigosus var. strigosus Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5712 Humboldt Hoopa Valley Comment
  UC6344  Eriogonum latifolium H. N. Bolander 1866-1 6569 Humboldt Shelter Cove Comment
  CAS-BOT-BC259183  Eriogonum latifolium W. R. Dudley 1899-6-1 s.n. Humboldt Peninsula opposite Eureka Comment
  RSA393624  Eriogonum latifolium E. A. Purer 1932-7-27 4149 Humboldt Near Samoa, near Arcata 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
  CAS-BOT-BC259534  Eriogonum luteolum var. luteolum Alice Eastwood 1921-7-21 10677 Humboldt Vanduzen [Van Duzen] River Comment
  POM165553  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1918-7-6 5044 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC205641  Eriogonum roseum Joseph P. Tracy 1919-9-13 5191 Humboldt Trinity River near Willow Creek - Northern Coast Ranges, Trinity River Comment
  HSC54660  Eriogonum umbellatum Overton, Butler 1979-7-25 9883 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  RSA0005167  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
  UC1980592 Image available 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. Comment
Read comments
Jun 19 2014
  UC6450 Image available Eriogonum umbellatum var. speciosum Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum; ; Hy-Am-Pum, Humboldt Co. Comment
  UC303021  Eriophorum crinigerum Joseph P. Tracy 1926-6-20 7637 Humboldt Horse Mt. Northern Coast Ranges, Horse Mt. 1463 Comment
  HSC100432  Eriophyllum Carl C. Marshall Jun 1885 92 Humboldt No data. Comment
  JEPS34624  Eriophyllum lanatum var. grandiflorum W. L. Jepson 1934-5-8 16722 Humboldt Benbow South Fork Eel River, Benbow Comment
  SEINET11850721  Eriophyllum lanatum var. grandiflorum J. P. Tracy 1944-1 17480 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC78919  Eriophyllum lanatum var. lanceolatum T. Jimerson, D. K. Imper 1982-5-17 1438 Humboldt Near Ashfield Ridge. 822 Comment
  UC90272  Eriophyllum lanatum var. lanceolatum Volney Rattan Jul 1878 Humboldt Comment
  CAS-BOT-BC301922  Eriophyllum staechadifolium Joseph P. Tracy 1918-7-1 4971 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 30 Comment
  UC582674  Eriophyllum staechadifolium Joseph P. Tracy 1934-7-2 13291 Humboldt bluffs along ocean Trinidad Comment
  HSC8479  Erodium cicutarium R. J. Vernimen 1963-2-17 8 Humboldt Clam Beach Lagoon, along railroad tracks Comment
  HSC8498  Erodium cicutarium Elrid H. Spinas 1948-5-15 14 Humboldt Horse Mtn. Comment
  SEINET13944098 Image available Eryngium aristulatum Joseph P. Tracy 1912-1 3777 & 4001 Humboldt Alton, Altitude ca 100 to 300 ft 91 Comment
  UC183565  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1912-7 3777 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC6760  Erysimum capitatum var. capitatum Francis Winter 1960-4-24 Humboldt 2 mi. SE of Burnt Ranch, Hoopa Indian Reservation 381 Comment
  CHSC31281  Erysimum menziesii Mark Stopher 1980-4-2 46 Humboldt On sand dunes of the Samoa peninsula at Humboldt Bay. 4 Comment
  HSC28486  Erysimum menziesii J. D. Ackerman 1973-3-27 54 Humboldt 1.5 mi. S of Samoa, alongside Hwy. Comment
  CAS-BOT-BC153743  Erythranthe alsinoides Doris K. Kildale 1926-3-21 1576 Humboldt Kneeland Prairie - Summit 853 Comment
  SEINET13693817 Image available Erythranthe dentata Noel H. Holmgren, Liew Fah Seong 1969-1 3613 Humboldt Prairie Creek Redwoods, in forest above coast near Del Norte County line Comment
  SJSU2542  Erythranthe dentata H. L. Buckalew 1962-6-26 Humboldt Prairie Cr Redwoods State Park Comment
  JEPS505  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  UC3606  Erythronium californicum C. C. Marshall April, 1888 Humboldt Hoopa Valley Comment
  UC666967  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC502714  Erythronium grandiflorum Joseph P. Tracy 1933-7-16 12774 Humboldt Opening in Fir forest near McKay Camp, South Fork Mtn. 1676 Comment
  UC666965  Erythronium grandiflorum Joseph P. Tracy 1933-7-16 12774 Humboldt openings in forest near McKay Camp; South Fork Mountain 1676 Comment
  HSC104325  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 23 Humboldt Kneeland 854 Comment
  UC1196289  Eschscholzia californica Joseph P. Tracy 1933-8-6 12934 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC183669  Eschscholzia californica Joseph P. Tracy 1912-7-26 3853 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC46009  Eschscholzia californica Catherine Chin 1978-9-8 113 Humboldt Arcata, A and 11th St. Comment
  JEPS590  Eschscholzia californica Lincoln Constance 1934-5-23 615 Humboldt Look Prairie South Fork Eel River, Bull Creek region (upper end, sw slope) 365 Comment
  UC161568  Eschscholzia californica Joseph P. Tracy 1911-5-30 3210 Humboldt bluff near Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC16115  Eucalyptus globulus J. W. Bosworth 1965-5-14 51 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  CAS-BOT-BC310453  Eucephalus ledophyllus var. covillei Doris K. Kildale 1925-8-17 1214 Humboldt (Near to) Trinity Summit 1917 Comment
  UC1199356  Euchiton sphaericus Joseph P. Tracy 1948-9-26 18230 Humboldt 6 mi SE of Arcata (Fickle Hill) 609 Comment
  UC1199357  Euchiton sphaericus Joseph P. Tracy 1938-6-20 15974 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC1223112  Euchiton sphaericus Joseph P. Tracy 1949-10-16 18591 Humboldt near Grizzly Creek; Van Duzen River 91 Comment
  UC204866  Euchiton sphaericus Joseph P. Tracy 1918-9-1 5097 Humboldt on old Kneeland Prairie road Newells Camp (around Humboldt Bay); Northern Coast Ranges, Humboldt Bay 457 Comment
  HSC75354  Euonymus occidentalis J. O. Sawyer, M. A. Ericksen 1980-7-18 3642 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  HSC76242  Euonymus occidentalis Denis Kearns 1981-7-23 398 Humboldt Near Whiteys Peak. 1524 Comment
  HSC100481  Euphorbia dictyosperma Carl C. Marshall Jun 1887 431 Humboldt Perrington Creek on rocks. Comment
  CAS-BOT-BC312206  Eurybia radulina Carl B. Wolf 1937-9-8 9301 Humboldt 11 mi. W. of Redwood Highway, Bull Creek - Petrolia Road, North Coast Range 304 Comment
  UC1199325  Euthamia occidentalis Joseph P. Tracy 1918-9-29 5112 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork Eel River above its mouth 60 Comment
  SEINET260371 Image available Festuca californica R. Spellenberg 1992-7-10 10246 Humboldt E edge county 8 mi WSW of Salyer 6 mi S of Berry Summit on CA Hwy 299; USFS 1372 Comment
  UC1103729  Festuca idahoensis Joseph P. Tracy 1926-6-6 7569 Humboldt on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UC188916  Festuca idahoensis Jos. Burtt Davy 1899-6-9 5377 Humboldt near Harris Comment
  HSC104038  Festuca occidentalis C. Reynolds 2015-3-21 26 Humboldt Willow Creek; At bend in Trinity River, on the east end of Kimtu beach, near Camp Kimtu 135 Comment
  RSA256712  Festuca occidentalis D. E. Anderson 1972-6-20 5723 B Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  HSC9947  Festuca occidentalis D. W. C 1956-4-30 Humboldt Matole River Area Comment
  CAS-BOT-BC278961  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N. E. of Capetown 152 Comment
  RSA126629  Festuca rubra H. S. Yates 1936-6-16 5670 Humboldt 1 mile NE of Samoa. 2 Comment
  SEINET181178 Image available Festuca rubra Bassett Maguire, Ruth Maguire; CB Maguire 1934-6-8 15065 Humboldt 20 mi N of Eureka Comment
  UC526867  Festuca rubra Joseph P. Tracy 1927-6-8 8112 Humboldt Trinidad Northern Coast Region 60 Comment
  CAS-BOT-BC282515  Festuca subbiflora W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  CAS-BOT-BC278621  Festuca subulata Joseph P. Tracy 1935-7-27 14295 Humboldt Trinity Summit. Open places at McKay Prairie 1584 Comment
  POM198640  Festuca subulata Joseph P. Tracy 1916-6-25 4745 Humboldt Redwood Creek, at point east from Trinidad. 152 Comment
  HSC33746  Fragaria chiloensis A. Montalvo 1975-5-24 285 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC12453  Fragaria chiloensis Wendell Wood 1970-9-9 283 Humboldt Gold Bluffs Beach near Fern Canyon 0 Comment
  HSC97577  Fragaria vesca Cara Witte 2007-5-29 130 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  UC1612458  Fragaria virginiana Gunter Staudt and H. Ahmadi 1989-5-15 313 Humboldt n of Trinidad (along Highway 101, near Seawood Drive exit); Highway 101 Comment
  OBI37797  Frangula californica subsp. californica David J. Keil 1983-7-1 17277 Humboldt 2.5 mi NE of Honeydew along Bull Crk Flats Rd Comment
  BLMAR113  Frangula californica subsp. californica Jennifer Anthony-Wheeler 1995-1-19 113 Humboldt King range, growing in open clrng arng rd to new king range admin 283 Comment
  BLMAR714  Frangula californica subsp. californica Jennifer Anthony-Wheeler 1995-1-19 714 Humboldt King range, growing in open clrng arng rd to new king range admin 283 Comment
  CAS-BOT-BC59993  Frangula purshiana Doris K. Kildale 1928-7-1 5304 Humboldt French Camp on Orick-Martin's Ferry Road. Comment
  HSC60320  Frangula purshiana J. P. Smith 1971-10-9 5016 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC89485  Frangula purshiana P. A. Daly 1984-5-13 19 Humboldt Along trail at Trinidad Head 61 Comment
  SEINET200389  Frasera speciosa Joseph P. Tracy 1932-7-20 10731 Humboldt Trinity Summit , 1585 Comment
  POM188359  Fraxinus latifolia Marcus E. Jones 1931-7-16 28864 Humboldt Junction, East of Arcata. Comment
  RSA24070  Fraxinus latifolia Carl B. Wolf 1940-11-10 9784 Humboldt Along the Mattole River 3 miles below Upper Mattole P.O. at Miner s Ranch 152 Comment
  HSC43114  Fritillaria affinis Maralyn O'Meara 1974-5-14 362 Humboldt Beside Hwy. 36, 14.2 mi. E of Bridgeville Comment
  SEINET3024818  Galium ambiguum Joseph P. Tracy 1913-6-21 4248 Humboldt Dinsmore's Ranch; in valley of Van Duzen River opposite Buck Mountain 760 Comment
  HSC89756  Galium aparine M. Roantree 1985-5-30 74 Humboldt E side of Trinidad Head along dirt road Comment
  HSC57438  Galium bifolium G. L. Clifton, Griswold 1979-7-26 10237 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2024 Comment
  HSC40043  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1976-7-1 2896 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC74746  Galium bolanderi Gail Newton 1981-8-7 2430 Humboldt Near Bug Creek Butte 1244 Comment
  JEPS6703  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  HSC71717  Galium californicum M. A. Baker 1980-6-26 2441 Humboldt Near Sims Creek 610 Comment
  JEPS6693  Galium californicum subsp. californicum W. L. Jepson 1932-8-1 16468 Humboldt Bull Creek 121 Comment
  HSC19807  Galium californicum subsp. californicum Lauramay T. Dempster, G. L. Stebbins 1963-7-9 3849 Humboldt E of Bridgeville, 4.4 mi. on Hwy. 36 to Dinsmore 457 Comment
  JEPS52864  Galium californicum subsp. californicum Lauramay T. Dempster and Jean Colton 1963-8-7 3889 Humboldt Redwood Hwy (101) just n Richardson Grove Comment
  JEPS6496  Galium parisiense W. L. Jepson 1902-6 1981 Humboldt Hupa Comment
  UC1196102  Galium parisiense Joseph P. Tracy 1916-6-19 4719 Humboldt at Forks of Dobby Creek Northern Coast Ranges 182 Comment
  UC1196082  Galium trifidum Joseph P. Tracy 1935-7-17 14098 Humboldt opposite mouth of Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  SD88387  Galium trifidum subsp. columbianum Darley F. Howe 1972-6-30 Humboldt Trinidad Comment
  HSC57191  Galium triflorum Griswold, Butler 1979-7-11 6908 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  RSA256577  Galium triflorum J. O. Sawyer 1970-6-24 2270 Humboldt S of Mill Creek Gap. F.S. Road 10N02. 1433 Comment
  HSC90249  Gamochaeta ustulata Jean Hanson 1980-5-24 59 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  UC127829  Gamochaeta ustulata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5465 Humboldt near Elk Prairie; North Western California Comment
  CAS-BOT-BC200581  Garrya buxifolia L. R. Abrams 1918-6-15 7109 Humboldt Brannan Mt near Willow Creek 1371 Comment
  UC906753  Garrya buxifolia Joseph P. Tracy 1947-7-9 17841 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC188531  Garrya elliptica Doris K. Kildale 1925-5-25 6043 Humboldt Eureka Slough, Eureka Comment
  HSC12588  Garrya elliptica Gary J. Stebbins 1970-2-2 5 Humboldt Along Clam Beach lagoon rd. off McKinleyville exit with Hwy. 101 Comment
  UC1215539  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt W. M. Lanphere's ranch 9 Comment
  UC154057  Garrya elliptica J. P. Tracy 1901-2-22 993 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC182150  Garrya fremontii Carl B. Wolf 1930-10-24 1762 Humboldt Along the Klamath River, 1 mile above the mouth of Slate Creek 243 Comment
  UC630638  Garrya fremontii Joseph P. Tracy 1939-9-10 16499 Humboldt Willow Creek; Trinity River Valley 152 Comment
  SEINET200332 Image available Gastridium phleoides J. P. Tracy 1912-7-26 3824 Humboldt Kneeland Prairie Comment
  UCD66582  Gastridium phleoides P. B. Kennedy 1923-8-5 26 Humboldt West fork of Eel River between Phillipsville and Garberville. Comment
  HSC103127  Gaultheria ovatifolia M. Mesler 2009-7-31 811 Humboldt South Fork Mtn. FS 1, 11.8 miles north of intersection with 4N12, just north of mile marker 34. 1486 Comment
  HSC22501  Gaultheria shallon R. E. Thill 1965-4-27 20 Humboldt 1 mi. off Hwy. 299 on Essex Lane Rd. Comment
  HSC22529  Gaultheria shallon Jerry Parker 1968-10-26 197 Humboldt Big Lagoon County Park Comment
  UCSB25031  Gaultheria shallon Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  HSC75456  Gayophytum diffusum subsp. parviflorum J. O. Sawyer 1980-7-18 3600 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC562500  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-7-26 12919 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  JEPS27601  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC208038  Genista monspessulana Joseph P. Tracy 1927-7-24 8301 Humboldt Mattole Valley 152 Comment
  HSC28184  Genista monspessulana Richard Curtis 1973-9-27 20 Humboldt Bayside cutoff between Eureka and Arcata. Comment
  JEPS47044  Gentiana affinis var. ovata Joseph P. Tracy 1930-7-27 9110 Humboldt Bear River Ridge North Coast Ranges 609 Comment
  UC153983  Gentiana affinis var. ovata J. P. Tracy 1904-8-7 2139 Humboldt immediate vicinity Eureka (open grassy lands) 0 Comment
  HSC48314  Gentiana plurisetosa Brad Klipfel 1973-8-3 302 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA0028176  Geranium bicknellii var. bicknellii D. E. Anderson 1963-5-25 2497 Humboldt About 4 miles east of Petrolia. Comment
  HSC2218  Geranium dissectum H. E. Parks, S. T. Parks Apr 1938 24118 Humboldt Spruce Cove, Trinidad 61 Comment
  RSA0028457  Geranium dissectum H. E. Parks, S. T. Parks 1938-04 24118 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC74459  Gilia capitata M. A. Baker 1980-5-18 1364 Humboldt Near Black Mtn. 792 Comment
  SEINET6969928  Gilia capitata Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  JEPS69522  Gilia capitata subsp. capitata Joseph P. Tracy 1935-7-29 14345 Humboldt brushy ridge 1 mi ne Ranger Station (Trinity Summit); , ne of Ranger Station 1676 Comment
  UC169033  Githopsis specularioides J. P. Tracy 1903-5-23 1906 Humboldt Alder Point Eel River 152 Comment
  UC582540  Glebionis segetum Joseph P. Tracy 1932-5-30 10125 Humboldt Rohnerville 91 Comment
  HSC75278  Glyceria elata J. O. Sawyer, D. A. Thornburgh 1980-9-9 4077 Humboldt Mill Creek Lake and surrounding meadows Comment
  HSC76548  Glyceria elata Denis Kearns 1981-7-23 433 Humboldt Near Whiteys Peak. 1524 Comment
  UCD57077  Glyceria occidentalis Joseph P. Tracy 1942-6-2 17090 Humboldt Loleta. 9 Comment
  UC1103750  Glyceria striata Joseph P. Tracy 1934-7-18 13430 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  SEINET4584957  Glyceria striata H. Ch 1901-1 1526 Humboldt Klamath River, North Coast Ranges 427 Comment
  CAS-BOT-BC302540  Gnaphalium palustre Harold E. Parks 1937-7-1 24046 Humboldt Spruce Cove, Trinidad Comment
  SBBG26798  Gnaphalium palustre H. E. and S. T. Parks -Jul-1937 24026 Humboldt Spruce Cove, Trinidad Comment
  POM199562  Gnaphalium sphaericum Joseph P. Tracy 1915-9-12 4677 Humboldt Humboldt County: mouth of Laribee Creek. 61 Comment
  HSC55277  Goodyera oblongifolia Overton, Butler 1979-8-2 12685 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1222817  Gratiola ebracteata Joseph P. Tracy 1951-6-21 Humboldt bed of former Goose Lake (Hydesville, back of the Everett Beck house (formerly George Gray's)); bed of former Goose Lake Comment
  CAS-BOT-BC304738  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1936-7-3 3781 Humboldt Eureka Comment
  HSC90778  Grindelia hirsutula Peter Sorensen 1976-6-28 Humboldt Woodley Island Comment
  UC581776  Grindelia hirsutula Joseph P. Tracy 1931-9-13 9669 Humboldt mouth of Eel River Eel River (along tidal sloughs) Comment
  RSA47124  Grindelia stricta var. stricta Doris K. Kildale 1925-7-15 1080 Humboldt Eureka Slough. Comment
  HSC56354  Hackelia bella Griswold, Butler 1979-7-10 6325 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC56456  Hackelia bella Griswold, Butler 1979-7-12 7233 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC74384  Hackelia bella M. A. Baker 1980-6-28 2473 Humboldt Near Mad River Buttes 1445 Comment
  HSC57650  Hackelia micrantha G. L. Clifton, Griswold 1979-7-25 10820 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC582621  Hackelia setosa Joseph P. Tracy 1937-7-2 15397 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  HSC44510  Hastingsia alba Brad Klipfel 1973-7-1 116 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC508212  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Wet or seepy ground, serpentine formation, Horse Mountain 1463 Comment
  POM182422  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek. 915 Comment
  HSC58152  Helenium bigelovii G. L. Clifton, Griswold 1979-8-2 12204 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC5764  Helenium bigelovii J. Wendell Howe 1934-6-24 1278 Humboldt Bald Hills - Mad Woods Comment
  HSC25071  Heliotropium curassavicum var. oculatum R. W. Becking 1970-10-3 Humboldt Stone Lagoon near Orick Comment
  CAS-BOT-BC453382  Hemitomes congestum Gary Wallace 1973-7-11 1252 Humboldt Prairie Creek Redwoods State Park, north of Orick Comment
  UC582405  Hemizonella minima Joseph P. Tracy 1930-6-16 8958 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC306037  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 304 Comment
  UC175088  Hemizonia congesta subsp. clevelandii T. S. Brandegee 1898-7-1 Humboldt Mad River Comment
  CAS-BOT-BC309981  Hemizonia congesta subsp. tracyi A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie Comment
  CAS-BOT-BC309990  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1937-7-19 15456 Humboldt Buck Mountain, lower foothills of its northwest slope 914 Comment
  CAS-BOT-BC309995  Hemizonia congesta subsp. tracyi Carl B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  JEPS12550  Hemizonia congesta subsp. tracyi Lincoln Constance 1934-6-12 868 Humboldt Bull Creek road and n bank of South Fork Eel River; Dyerville Comment
  UC495620  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1927-5-8 7983 Humboldt vicinity of Garberville 121 Comment
  HSC48812  Heracleum maximum Brad Klipfel 1973-7-31 226 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC98845  Heracleum maximum Cara Witte 2008-7-16 920 Humboldt National Forest Road 4N06. 1 mile west of National Forest 1. 1228 Comment
  UC275454  Hesperevax acaulis var. robustior Joseph P. Tracy 1925-5-17 6982 Humboldt near s fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1199419 Image available Hesperevax sparsiflora var. brevifolia Joseph P. Tracy 1932-5-16 10107 Humboldt near Samoa; Humboldt Bay 6 Comment
  HSC98091  Heterocodon rariflorum Cara Witte 2007-7-11 476 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  UC168968  Heterocodon rariflorum Joseph P. Tracy 1905-7-6 2199 Humboldt Eureka; Northern Coast Region 0 Comment
  SEINET10840490  Heterocodon rariflorum Anderson 1974-6-17 Anderson 5709 Humboldt MCKEOWN RANCH N OF DINSMORE OAK, DOUG FIR WOODLAND. T2N R5E SECS 283334 Comment
  UC169327  Heterocodon rariflorum Joseph P. Tracy 1911-7-5 3329 Humboldt near Willow Creek mouth (tributary of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC311053  Heterotheca oregona var. oregona John Thomas Howell 1936-8-29 12889 Humboldt Bluffs of Eel River, 11 miles n. of Garberville Comment
  JEPS2429  Heterotheca oregona var. rudis Lincoln Constance 1934-5-26 666 Humboldt s end Dyerville Bridge (sand and gravel bar of South Fork of Eel River); Bull Creek Region, South Fork Eel River 45 Comment
  UC165074  Heterotheca oregona var. rudis Joseph P. Tracy 1900-9-10 950 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC100650  Heuchera micrantha Carl C. Marshall Jun 1887 407 Humboldt Garberville. Comment
  HSC74559  Heuchera micrantha M. A. Baker 1980-7-11 2798 Humboldt Near Red Mtn. 1341 Comment
  BLMAR81  Heuchera micrantha Jennifer Anthony-Wheeler 1994-6-2 81 Humboldt IAQUA, growing along moist, rocky banks 3/4mi from pvd 853 Comment
  UC154083  Heuchera micrantha var. diversifolia Joseph P. Tracy 1908-6 2865 Humboldt Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges 762 Comment
  RSA0066093  Heuchera micrantha var. diversifolia Thomas W. Nelson 1977-6-15 3423 Humboldt Along Forest Rd 5N10 just N of jct with Rd 6N08. 1372 Comment
  UC902002  Heuchera micrantha var. diversifolia Joseph P. Tracy 1947-5-10 17682 Humboldt Garberville, near airport Garberville 152 Comment
  CAS-BOT-BC312388  Hieracium albiflorum Doris K. Kildale 1927-7-17 3752 Humboldt Bug Creek 792 Comment
  RSA32658  Hieracium albiflorum Doris K. Kildale 1927-7-17 3752 Humboldt Bug Creek, Chaparral Mountain Comment
  UC127713  Hieracium albiflorum Harley P. Chandler 1901-6-1 1329 Humboldt Hupa Indian Reservation North Coast Ranges, , Hoopa Indian Re 152 Comment
  CAS-BOT-BC312396  Hieracium albiflorum Henry M. Pollard 1947-9-1 s.n. Humboldt Naer summit of Somes Mountain, Orleans region 1219 Comment
  UC1199461  Hieracium albiflorum Joseph P. Tracy 1926-11-7 7825 Humboldt Table Bluff Northern Coast Region, Humboldt Bay, Table Bluff 152 Comment
  UC582410  Hieracium greenei Joseph P. Tracy 1935-7-29 14340 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  CAS-BOT-BC316003  Hieracium nudicaule Harley P. Chandler 1901-6-1 1489 Humboldt Klamath River 426 Comment
  POM160893  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt Around Humboldt Bay, old Kneeland Road 305 Comment
  UC1103737  Hierochloe occidentalis Joseph P. Tracy 1934-7-9 13340 Humboldt 3 mi s Harris; Northern Coast Ranges 762 Comment
  UC1103738  Hierochloe occidentalis Joseph P. Tracy 1942-5-16 17348 Humboldt Garberville 152 Comment
  UC167083  Hierochloe occidentalis Joseph Burtt Davy 1899-6-11 5424 Humboldt Elk Prairie Comment
  UC205670  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt around Humboldt Bay (old Kneeland Road); Northern Coast Ranges 304 Comment
  HSC59059  Hippuris vulgaris Thomas Wood 1979-5-17 186 Humboldt Clam Beach pond, E of Clam Beach-Little River Beach, along Hwy. 101 3 Comment
  UCSB25052  Hippuris vulgaris Keefe, Joseph 1967-7-8 Humboldt east side of U.S. Highway 101, turnoff to Crannell Road; north of Eureka 6 Comment
  HSC90677  Holcus mollis Gail Newton 1982-6-1 3568 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC57021  Holodiscus discolor Overton, Butler 1979-7-24 9636 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  RSA183590  Holodiscus discolor D. E. Anderson 1963-9-1 2806 Humboldt Near Kneeland. 732 Comment
  SD42284  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt North coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 305 Comment
  LA83708  Holodiscus discolor O. H. Kappler; 1946-7-24 1372 Humboldt Humboldt Bay, close to beach Comment
  HSC10165  Hordeum brachyantherum J. A. Waller 1965-5-2 33 Humboldt Open field Comment
  HSC58607  Hordeum brachyantherum G. L. Clifton, Griswold 1979-7-25 10949 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  RSA87062  Hordeum brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Trinidad 9 Comment
  UC1103489  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1942-6-2 17094 Humboldt 1 mi E of town Alton 18 Comment
  HSC102700  Hordeum marinum subsp. gussoneanum J. P. Smith 2013-6-16 13727 Humboldt Along State Route 36, just west of the 31.40 highway sign (milepost). 757 Comment
  JEPS72937  Hordeum marinum subsp. gussoneanum Lincoln Constance 1934-5-29 722 Humboldt Upper Look Prairie Bull Creek Region, South Fork Eel River, Upper Look Prairie (South Fork Eel River, Bull Creek Region) 365 Comment
  UC50483  Hordeum marinum subsp. gussoneanum Joseph Burtt Davy 1899-6-8 5342 Humboldt Bell's Springs Comment
  CAS-BOT-BC536626  Horkelia californica Milo S. Baker 1931-7-17 5409 Humboldt A few mile south of Eureka along Redwood Highway Comment
  UC183550  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1913-6-17 4163 Humboldt near summit (Buck Mountain); Northern Coast Ranges 1524 Comment
  POM264835  Horkelia tridentata subsp. flavescens Lincoln Constance, A. A. Beetle 1940-5-17 2613 Humboldt Above Van Duzen River, 1 mile below Dinsmore's 762 Comment
  HSC63030  Horkelia tridentata var. flavescens J. P. Smith, J. O. Sawyer 1973-5-12 6699 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC96156  Hosackia crassifolia var. crassifolia Thomas W. Nelson, Jane P. Nelson 1987-6-11 8531 Humboldt Along F.S. Rd. 13N01, 18 mi. from junction with State Route 96 1067 Comment
  HSC58536  Hosackia oblongifolia var. oblongifolia Overton, Butler 1979-7-23 9454 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  UC1239766  Hydrophyllum occidentale Joseph P. Tracy Jul 16 1930-Jul 19 1930 9085 Humboldt South Fork Mountain Northern Coast Ranges (near McKay Camp) 1676 Comment
  JEPS1639  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-25 15538 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC56966  Hypericum anagalloides Walter Overton, Butler 1979-7-23 9489 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC74430  Hypericum anagalloides Gail Newton 1980-8-10 2060 Humboldt Near Blake Mtn. 1707 Comment
  UC1046635  Hypericum perforatum J. I. Mallory 1955-9-17 123 Humboldt 3/8 mi. n.-n.w. Cottrell Ranch headquarters (V-Plot 1); Quad. 29A-2 746 Comment
  UC420746  Hypericum perforatum Harley P. Chandler June, 1901 1493 Humboldt Klamath R. North Coast Ranges, Klamath R. 426 Comment
  UC902119  Hypericum perforatum Joseph P. Tracy 1943-8-23 17444 Humboldt Eureka 6 Comment
  HSC95115  Hypericum perforatum Andrea Pickart 2002-7-9 167 Humboldt Bracut Marsh, in a transitional zone between brackish and riparian 9 Comment
  HSC39569  Hypochaeris glabra D. E. Anderson, J. P. Smith 1971-6-18 1074 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  HSC90427  Hypochaeris glabra Jean Hanson 1980-6-22 91 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka. W end of island; ca. 100 ft. inland from shore Comment
  CAS-BOT-BC206840  Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  CAS-BOT-BC206845  Iliamna latibracteata C. B. Wolf 1931-8-28 2367 Humboldt Redwood Highway, 3 miles north of Orick, Davison's Ranch on Prairie Creek 60 Comment
  UC668129 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 10104 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
Read comments
Feb 27 2012
  UC150134  Ipomopsis aggregata P. E. Goddard 1906-6 683 Humboldt Sassick Park Comment
  RSA78187  Iris Rimo Bacigalupi 1951-6-14 3414 Humboldt Pseudotsuga and Abies concolor, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain) 1433 Comment
  HSC69580  Iris douglasiana R. Kalal 1980-6-3 5 Humboldt Along Fickle Hill Rd., 0.8 mi. E of its junction with 11th St. 189 Comment
  UCR138875  Iris douglasiana J. Marshall, J. Savage, L. Allison 1997-3-15 3 Humboldt Hwy 36, 0.5 mi west of Bridgeville 183 Comment
  HSC79519  Iris douglasiana Kenneth Clark 1980-3-1 519 Humboldt Middle terrace, Dead Man's Gulch, Shelter Cove 43 Comment
  UC175825  Iris douglasiana Joseph P. Tracy 1912-4-21 3571 A Humboldt Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  UC1134714  Iris macrosiphon R. Stahelin 1933-6-24 Humboldt Casper Eureka Quad. (e of Camp 19) 91 Comment
  HSC36635  Iris purdyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1907 Humboldt End of road to Pine Mtn. Comment
  UCD138802  Iris purdyi M. Wiesendanger 1928-4-7 912 Humboldt Redwood Highway, Lane's Redwood Flat. Comment
  CDA33248  Iris purdyi Gordon Leppig 1998-6-1 867 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  RSA135935  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-12 17193 Humboldt 0.5 mile west of Bridgeville, 23.7 miles east and southeast from Alton along Highway 36 Comment
  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
  HSC32883  Iris tenuissima Thomas W. Nelson, James Nelson 1973-5-28 935 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA135920  Iris tenuissima Lee W. Lenz, E. K. Balls 1955-5-15 20734 Humboldt 15.8 miles southeast along U.S. Highway 299 from Willow Creek, towards Arcata 579 Comment
  JEPS79909  Isatis tinctoria Joseph P. Tracy 1939-4-29 16239 Humboldt Klamath River at mouth of Slate Creek; Klamath River, Slate Creek 121 Comment
  CAS-BOT-BC88654  Isatis tinctoria J. H. Thomas 1949-6-12 900 Humboldt Near Klamath River, about 0.5 mile north of town of Orleans. Comment
  SEINET5782208 Image available Jaumea carnosa S. K. Harris, C. C. Harris 1939-8-26 Humboldt S shore of Humboldt Bay Comment
  JEPS93182  Jaumea carnosa Margriet Wetherwax and Kevin Downing 1993-8-9 2463 Humboldt n Eureka (along n side of slough, Jacobs St. turn-off of 101N just beyond bridge over slough, between 2 Peterbilt warehouses); Eureka Slough 5 Comment
  CAS-BOT-BC101964  Juglans hindsii J. W. Blankinship 1928-7-12 s.n. Humboldt Clear Lake woods, Mouth of Kelsey Cr. Comment
  CAS-BOT-BC110012  Juncus Henry M. Pollard 1956-10-8 s.n. Humboldt Along road above Ullathorne Riffle, ca. 3 miles southwest of Orleans. 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
  SJSU10737  Juncus balticus subsp. ater H. T. Harvey 1977-7-7 616 Humboldt Eel R delta c. 4 mi NW of Ferndale Comment
  UCD141319  Juncus breweri Harold L. Lint 1964-1-4 C 308 Humboldt Hwy 101, Dry Lagoon State Park. Comment
  RSA18013  Juncus bufonius Carl B. Wolf 1927-8-22 780 Humboldt Big Lagoon Comment
  UC1152112  Juncus bufonius Joseph P. Tracy 1927-6-19 8197 Humboldt Big Lagoon Comment
  UCD141361  Juncus bufonius Linda M. Barker 1976-6-1 1551 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD141425  Juncus covillei Linda M. Barker 1976-6-22 1623 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC45438  Juncus covillei Thomas W. Nelson, Jane Nelson 1978-7-2 4403 Humboldt Along margin of Lost Lake 1433 Comment
  RSA70280  Juncus covillei F. W. Peirson 1923-7-9 3666 Humboldt Humboldt County State Park on Eel River, northern California. Comment
  HSC99805  Juncus effusus subsp. pacificus Thomas W. Nelson 1975-9-24 2202 Humboldt Beside Indianola Rd., 0.5 mi. E of junction with Hwy. 101 Comment
  HSC91871  Juncus ensifolius E. Mackey 1987-7-4 Humboldt Patrick's Point State Park, N of Wedding Rock Comment
  HSC57986  Juncus exiguus G. L. Clifton, Terry Griswold 1979-7-31 11721 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA246769  Juncus falcatus subsp. sitchensis Robert F. Thorne, Percy C. Everett 1965-8-7 35175 Humboldt Big Lagoon. 2 Comment
  UC205904  Juncus hesperius Hy Melde 1902-6-23 Humboldt Eureka Comment
  HSC23804  Juncus lescurii Tim Baroni 1971-6-26 69 Humboldt Out the Samoa Peninsula just opposite the Georgia Pacific pulp mill Comment
  UC184016  Juncus patens Joseph P. Tracy 1901-7-28 1223 Humboldt Eureka Northern Coast Ranges 0 Comment
  RSA70263  Juncus phaeocephalus var. phaeocephalus F. W. Peirson 1923-7-11 3669 Humboldt 7 miles N of Arcata, Humboldt County Comment
  RSA178532  Juncus tenuis Joseph P. Tracy 1937-8-3 15609 Humboldt Near Blue Lake, along Mad River. 15 Comment
  RSA168864  Juncus xiphioides Joseph P. Tracy 1938-7-24 16086 Humboldt Pacific and A Streets. Eureka. 0 Comment
  POM160888  Keckiella corymbosa Joseph P. Tracy 1920-8-15 5360 Humboldt Klamath River at Bluff Creek. 152 Comment
  UC177173  Keckiella corymbosa Joseph P. Tracy 1912-7-26 3847 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC41735  Keckiella corymbosa Chesnut and Drew 1888-7-10 Humboldt Jarnigans's Comment
  UC582862  Keckiella corymbosa P. A. Munz 1936-8-9 14328 Humboldt 5 mi n Humboldt-Mendocino County line (south fork of Eel River); Eel River Comment
  CAS-BOT-BC237835  Keckiella lemmonii Marcus E. Jones 1931-7-16 28828 Humboldt Junction, East of Arcata Comment
  POM208967  Keckiella lemmonii Lincoln Constance 1934-6-27 937 Humboldt Eel River, above its junction with S Fork, 0.5 mile from South Fork R.R. Sta. 46 Comment
  RSA43678  Kelloggia galioides H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  UC50518  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5771 Humboldt Trinity Summit Comment
  UC1199393  Kyhosia bolanderi Joseph P. Tracy 1932-7-16 10613 Humboldt Corral Prairie; Trinity summit 1584 Comment
  CHSC79684  Lamiastrum galeobdolon Gordon Leppig; Kai Neander 2000-4-13 1292 Humboldt Arcata. 100 m south of trail 5 and 10 intersection. UTM zone 10, 4527N, 40E. 91 Comment
  HSC77913  Landoltia punctata Daniel V. Richards 1980-5-25 101 Humboldt N Clam Beach Pond, E side of Hwy. 101, near Cranell exit. Comment
  JEPS87028  Lapsana communis Dean W. Taylor 1991-9-15 12293 Humboldt near the mouth Tom Creek (along Highway 101); North Coast Ranges, Big Lagoon 3 Comment
  UC249830  Lasthenia californica subsp. californica Joseph P. Tracy 1923-7-4 6520 Humboldt valley South Yager Creek; Northern Coast Ranges 762 Comment
  UC1222399  Lathyrus glandulosus Joseph P. Tracy 1942-7-26 17298 Humboldt near Redwood House; Valley of South Yager Creek 609 Comment
  JEPS55264  Lathyrus jepsonii var. californicus W. L. Jepson 1902-7-10 2010 Humboldt Martin's Ranch South Fork Trinity River Comment
  HSC14744  Lathyrus littoralis J. W. Johnson 1962-5-6 1326 Humboldt W.M. Lanphere Farm, Samoa Peninsula. Comment
  POM277522  Lathyrus littoralis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, Trinidad. 12 Comment
  HSC95147  Lathyrus palustris Gordon Leppig 2003-7-18 2008 Humboldt Eureka, Marsh N of Elk River Slough 2 Comment
  SBBG3360  Lathyrus polyphyllus H. and M. Dearing 1933-5-16 825 Humboldt near Weott Comment
  HSC18847  Lathyrus sphaericus Cherry Kline 1971-5-31 45 Humboldt 1.5 mi. NW of Petrolia on side of Mattole Rd. Comment
  JEPS55310  Lathyrus sulphureus Lincoln Constance 1934-5-31 757 Humboldt from w boundary of Park to Grasshopper Pk. (Squaw Cr.) rd (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  JEPS55298  Lathyrus torreyi W. L. Jepson 1932-7-30 16456 Humboldt Bull Creek 121 Comment
  BLMAR644  Lathyrus torreyi Jennifer Wheeler 2011-7-7 644 Humboldt Lacks Creek, Pine Ridge Road, spur at Stormy Saddle 1097 Comment
  HSC75556  Lathyrus torreyi J. O. Sawyer, R. J. Cole 1977-7-3 3004 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  JEPS55297  Lathyrus torreyi Milo S. Baker 1923-7-20 57 Humboldt road to Yager from Redwood House 609 Comment
  RSA168908  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt On Murphy Ridge beyond the meadows. Comment
  SEINET12154019  Lathyrus torreyi J. P. Tracy 1943-1 17430 Humboldt Willow Creek Canyon, along Trinity Hwy. East Fork of Willow Creek Comment
  UC1199063  Lathyrus torreyi Joseph P. Tracy 1911-7-7 3434 Humboldt between Willow Creek Campbell Creek (viz ridge n of Willow Creek); Northern Coast Ranges, Brannan Mountain 1219 Comment
  RSA74591  Lathyrus tracyi C. L. Hitchcock 1949-6-8 19086 Humboldt 3 miles SE of Willow Creek, along Highway #299. Comment
  RSA168907  Lathyrus vestitus subsp. bolanderi Joseph P. Tracy 1942-7-26 17298 Humboldt Valley of South Yager Creek. 610 Comment
  UC1199084  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1924-8-10 6814 Humboldt Blue Slide, on Van Duzen River Northern Coast Ranges, Van Duzen River 91 Comment
  HSC24421  Lavatera cretica Wilbur Peterson 1972-5-9 717 Humboldt Samoa peninsula, along road leading to Samoa Cookhouse Comment
  CAS-BOT-BC325997  Layia carnosa Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  HSC39959  Layia carnosa Linda M. Barker 1976-4-13 1377 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  UC30591  Layia carnosa J. P. Tracy 1901-4-17 Humboldt Samoa; Humboldt Bay Comment
  JEPS40021  Layia gaillardioides W. L. Jepson 1902-8-3 2140 Humboldt Bear River Range to Petrolia Comment
  UC1197587  Ledum glandulosum J. P. Tracy 1899-7-22 84 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC534923  Lemna turionifera L. R. Abrams; R. Bacigalupi 1958-6-17 8271 Humboldt Big Lagoon south of Orick Comment
  RSA170231  Lepidium heterophyllum Joseph P. Tracy 1942-6-15 17140 Humboldt Miranda. 91 Comment
  UC1199161  Lepidium virginicum Joseph P. Tracy 1916-5-31 4690 Humboldt Holmes Flat, along Eel River from South Fork to Scotia Northern Coast Ranges, Eel River 60 Comment
  CAS-BOT-BC341828  Lessingia nemaclada Henry M. Pollard 1945-8-28 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  CHSC299  Leucanthemum vulgare M. Underhill 1952-7-14 Humboldt Field. 15 Comment
  HSC48613  Leucanthemum vulgare Mark Flippo 1978-5-18 63 Humboldt Arcata, US 101 Comment
  HSC97992  Leucanthemum vulgare Cara Witte 2007-7-9 462 Humboldt Along Forest Service Road 4N32. 1/4 mile west of intersection with 5N04 1508 Comment
  UC673022  Lewisia leeana Joseph P. Tracy 1935-7-24 14200 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC673019  Lewisia nevadensis Joseph P. Tracy 1932-7-10 10377 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  SEINET200641 Image available Leymus mollis subsp. mollis Joseph P. Tracy 1912-7-7 3744 Humboldt Eureka. Comment
  UC34076  Leymus mollis subsp. mollis J. P. Tracy 1901-8-7 1267 Humboldt ocean beach opp. Eureka; Samoa Comment
  POM160887  Leymus triticoides Joseph P. Tracy 1918-7-6 5063 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  CAS-BOT-BC436494  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt North Yager Creek, at crossing of Kneeland to Bridgeville road Comment
  HSC74226  Ligusticum californicum M. A. Baker 1980-7-19 3021 Humboldt Near Bret Hole. 1814 Comment
  HSC56332  Ligusticum grayi Overton, Butler 1979-8-2 12702 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA135355  Lilium Volney Rattan 1879-1 s.n. Humboldt Klamath Comment
  RSA65318  Lilium columbianum Albert M. Vollmer, L. Beane 1951-07 s.n. Humboldt A few miles north of Arcata near U. S. Highway 101 Comment
  CAS-BOT-BC130636  Lilium kelloggii A. M. Vollmer; L. Beane 1951-6-1 148 Humboldt On road to Bald Mountain, east of Korbel Comment
  CAS-BOT-BC130690  Lilium occidentale David D. Keck 1948-7-1 5978 Humboldt 3 mi. N. Big Lagoon Comment
  CAS-BOT-BC130732  Lilium pardalinum Doris K. Kildale 1928-7-25 5693 Humboldt Chalk Mountain 914 Comment
  UC666950  Lilium pardalinum Joseph P. Tracy 1938-7-4 15994 Humboldt Valley of South Yager Creek 762 Comment
  JEPS62008  Lilium pardalinum Hilda Grinnell 1932-7-19 31 Humboldt near McKay Camp 1676 Comment
  UC1198230  Lilium rubescens Joseph P. Tracy 1914-9-6 4616 Humboldt Bald Mountain Northern Coast Ranges (between High Prairie and Snow Camp) 1066 Comment
  UC502960  Limnanthes douglasii subsp. douglasii Joseph P. Tracy 1928-5-20 8439 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  SD129683  Limnanthes douglasii var. nivea Barbara Ertter, Thomas J. Delendick 1987-5-16 6925 Humboldt Vista Point just west of Berry Summit on Highway 299, ca. 15 miles east of Arcata. 914 Comment
  HSC83038  Limonium californicum A. L. Eicher 1985-6-19 Humboldt Humboldt Bay, 0.3 mi. S of the junction of Samoa Blvd. and Vance Ave. 1 Comment
  UC1198589  Linanthus androsaceus Joseph P. Tracy 1927-7-4 8232 Humboldt Iaqua 609 Comment
  UC907986  Linanthus androsaceus Joseph P. Tracy 1936-6-9 14879 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC427875  Linanthus androsaceus H. E. Parks, J. P. Tracy 1930-5-25 794 Humboldt vicinity Bridgeville; Laribee Valley Comment
  UC162582  Linanthus filipes Joseph P. Tracy 1911-7-9 3456 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  RSA46839  Linaria vulgaris Doris K. Kildale 1926-6-4 2090 Humboldt Trinidad. Comment
  SD37712  Linaria vulgaris Edith A. Purer 1932-7-30 Humboldt Orick, roadside Comment
  CAS-BOT-BC416392  Linnaea borealis subsp. longiflora H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  HSC34281  Linnaea borealis subsp. longiflora K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  HSC72632  Linnaea borealis subsp. longiflora J. P. Smith 1977-7-3 9251 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  RSA20849  Linum angustifolium Carl B. Wolf 1937-6-18 8889 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  UC902011  Listera caurina Harold E. Parks and Joseph P. Tracy 1949-6-25 11667 Humboldt near Box Camp; Hoopa Mountain 1524 Comment
  UC275532  Listera cordata Joseph P. Tracy 1924-3-30 6632 Humboldt near Bridgeville; Northern Coast Ranges 182 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
  HSC73409  Listera cordata var. nephrophylla Bruce Potter, Leslie Sieburth, Susan Ahrens 1981-4-19 653 Humboldt 229 Comment
  SEINET12034164  Lithocarpus densiflorus K. S. Erdman 1970-1 4841 Humboldt Redwood Creek,about 2-3 mi above the road end. Near mouths of McArthur and Elam Creeks,Redwood Ntl Comment
  POM270414  Lithocarpus densiflorus var. densiflorus Lyman Benson 1927-7-12 224 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  RSA174011  Lithocarpus densiflorus var. densiflorus Robert F. Thorne 1957-9-2 19004 Humboldt Sandy margin of branch of the Eel River at Burlington State Park, just S of Weott. Comment
  UC1196494  Lithophragma campanulatum Joseph P. Tracy 1932-7-18 10700 Humboldt head of Brett Hole Trinity Summit; Klamath Mountains, , head of Brett Hole 1828 Comment
  HSC70567  Lithophragma heterophyllum M. A. Baker 1980-7-19 3022 Humboldt Near Bret Hole. 1814 Comment
  UC1103159  Lolium multiflorum Joseph P. Tracy 1909-7-4 3003 Humboldt Eureka; Northern Coast Region, at Eureka 0 Comment
  HSC10306  Lolium perenne R. H. Berg 1963-2-27 4 Humboldt Arcata, Fickle Hill area. Comment
  RSA254759  Lomatium californicum Thomas W. Nelson, James Nelson 1973-5-28 954 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1197166  Lomatium californicum Joseph P. Tracy 1912-7-31 3929 Humboldt near summit Buck Mt.; Northern Coast Ranges, Buck Mt. 1676 Comment
  SEINET3822052 Image available Lomatium dissectum Lincoln Constance, Alan A. Beetle, Joseph P. Tracy 1940-5-17 2617 Humboldt Buck Mountian, near Eureka 792 Comment
  HSC34919  Lomatium dissectum var. dissectum Thomas W. Nelson, James Nelson 1975-5-24 1855 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SBBG5200  Lomatium dissectum var. multifidum H. and M. Dearing 1933-5-16 1222 Humboldt Eel River, N of Garberville Comment
  JEPS14256  Lomatium macrocarpum Joseph P. Tracy 1933-7-25 12894 Humboldt Grouse Mt. 1524 Comment
  RSA119326  Lomatium martindalei S. Tillett 1956-7-6 627 Humboldt 12 miles from Orleans on road south from Bar Shanty road to east of Orleans 1174 Comment
  HSC40717  Lomatium tracyi Thomas W. Nelson, Barbara Kelly 1977-6-15 3443 Humboldt Along old road to Horse Mountain ski area. 1372 Comment
  HSC97218  Lomatium tracyi K. Auker, R. Battleson 2007-6-11 3 Humboldt Near Grouse Mtn., 11.9 mi. S of Hwy. 299 on F.S. Rd. NF1 1585 Comment
  UC1438145  Lomatium tracyi Barbara Kelly 1978-5-1 587 Humboldt 1/4 mi from Horse Mountain Road 1/2 mi below turnoff to summit, near end of unused gravel road Comment
  UC21257  Lomatium triternatum var. macrocarpum Harley P. Chandler June, 1901 1378 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC27656  Lonicera conjugialis G. L. Clifton, Terry Griswold 1979-7-25 10829 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1125245  Lonicera hispidula var. vacillans H. L. Person 1932-7-23 N.w.S 16 Humboldt road e Korbel; Eureka Quadrangle Comment
  CAS-BOT-BC241486  Lonicera involucrata var. ledebourii B. D. Stark 1929-7-24 1387 Humboldt 8 miles south of Eureka 30 Comment
  POM284249  Lonicera involucrata var. ledebourii Lyman Benson 1928-7-10 816 Humboldt Clam Beach, Trinidad. 15 Comment
  SBBG69576  Lonicera involucrata var. ledebourii R. Hartwell 1938-8-6 Humboldt near Arcata Comment
  CAS-BOT-BC200914  Lotus Milo S. Baker 1927-8-21 2468 a Humboldt Near Bald Mt. Comment
  UC33554  Lotus aboriginus Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  UC80965  Lotus formosissimus T. S. Brandegee Jun 1891 Humboldt Eureka Comment
  JEPS19446  Lotus micranthus W. L. Jepson 1902-6 1900 Humboldt Ft. Seward Ranch Ridge (= Mail Ridge) Ft. Seward Ranch Ridge 1219 Comment
  POM232036  Lotus unifoliolatus I. L. Wiggins 1930-7-22 4689 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  UC1197303  Lotus wrangelianus Joseph P. Tracy 1927-6-18 8178 Humboldt on road from ocean towards Petrolia; Northern Coast Ranges, Cape Mendocino 30 Comment
  SEINET3136450  Lotus yollabolliensis R. W. Spellenberg 1990-7-9 10230 Humboldt 7 air mi WNW of Hyampom, 40 mi S of Calif. Hwy 299 and Berry Summit on USFS Road 1, ca 1 mi N of Blake Mtn. on South Fork Mtn 1768 Comment
  SD56747  Luina nardosmia Darley F. Howe 1963-5-26 3553 Humboldt 2.8 miles east of Orick on Bal Hill Road. 424 Comment
  RSA89561  Lupinus Philip A. Munz 1954-7-23 19861 Humboldt Road from Dinsmore to Mad River, near Humboldt-Trinity county line. 762 Comment
  HSC36638  Lupinus albifrons var. flumineus Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1904 Humboldt Beside Rd. 2S08 to Pine Mtn. 1555 Comment
  HSC40974  Lupinus arboreus Linda M. Barker 1976-5-13 1474 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC89700  Lupinus arboreus Larry Levine, Pacheco, Murphey 1989-5-5 54 Humboldt SW of Hwy. 101 bridge over Little River Comment
  HSC90219  Lupinus arboreus L. Watson, J. Meninga Aug 1990 7 Humboldt Near Manilla. Mad River Slough and Dunes. 30 yds. N of parking lot, W side of trail. Comment
  UC146918  Lupinus arboreus Harley P. Chandler May, 1901 1095 Humboldt Scotia; North Coast Ranges, Scotia 60 Comment
  UC484046  Lupinus arboreus Carl B. Wolf 1930-10-28 1780 Humboldt Samoa; Humboldt Bay, Samoa 15 Comment
  SEINET10488462  Lupinus arboreus Charles R. Gunn 1963-6-2 Gunn 2697 Humboldt Vacant lot n of trinidad school. 3 Plants. 5-6 Ft tall Comment
  UC15950  Lupinus bicolor Harley P. Chandler May, 1901 1146 Humboldt Humboldt Bay; Humboldt Bay, North Coast Ranges 3 Comment
  HSC78624  Lupinus bicolor L. P. Janeway 1984-5-16 785 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd. just N of the boat ramp 3 Comment
  RSA256586  Lupinus bicolor Lon Hall 1975-5-24 382 Humboldt Samoa Dunes; Dunes from off Samoa Blvd. across from the boat landing; coastal strand. Comment
  HSC58640  Lupinus latifolius G. L. Clifton, Griswold 1979-7-31 11636 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC39639  Lupinus latifolius subsp. latifolius Thomas W. Nelson, Jane P. Nelson 1976-6-16 2745 Humboldt W of Alder Springs along 2S08 1494 Comment
  RSA167420  Lupinus latifolius subsp. latifolius Joseph P. Tracy 1933-8-30 13032 Humboldt Grouse Mountain, near Clear Lake. 1524 Comment
  SBBG13869  Lupinus latifolius var. latifolius H. and M. Dearing 1939-5-24 3423 Humboldt pass from Dyerville to coast, Cape Mendocino Comment
  UC162167  Lupinus latifolius var. latifolius Joseph P. Tracy 1909-8-1 3065 Humboldt Kneeland Prairie , Kneeland Prairie (Northern Coast Ranges) 762 Comment
  UCD108590  Lupinus lepidus var. sellulus Richard Spellenberg 1965-6-13 1110 Humboldt on e. side of Trinity River, about 3/4 mi. s. of hwy. through Hoopa Indian Reservation. Comment
  UC1223254  Lupinus littoralis Joseph P. Tracy 1938-6-16 15940 Humboldt Brainards Point, along highway between Eureka and Arcata Comment
  HSC41637  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3583 Humboldt N of Alder Springs at head of N Fork of Conley Creek 1555 Comment
  BLMAR343  Lupinus nanus Jennifer Anthony-Wheeler 2003-5-15 343 Humboldt Eden valley, Irrigated meadow on private land 694 Comment
  JEPS61938  Lupinus onustus Joseph T. Gregory 1935-7-24 740 Humboldt open places at Corral Prairie; Trinity Summit, open places at Corral Prairie 1584 Comment
  UC169007  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1912-7-21 3784 Humboldt Alton; Northern Coast Region 30 Comment
  SEINET12165817  Lupinus propinquus J. T. Vale 1988-1 s.n. Humboldt nr Petrolia Comment
  HSC14865  Lupinus rivularis Allan R. Marshall 1962-5-5 8 Humboldt 25 yds. W of 1528 M St. 6 Comment
  SEINET10488870  Lupinus rivularis Donald E. Bright 1962-6-12 Bright 281 Humboldt Redwood and douglas fir woods, bald hill road, 5 mi e of orick. Comment
  SEINET12154709  Lupinus rivularis J. P. Tracy 1934-1 13482 Humboldt Samoa Sand Dunes Comment
  UCD109516  Lupinus rivularis P. B. Kennedy 1929-6-12 s.n. Humboldt Around Eureka. Comment
  HSC58361  Lupinus tracyi G. L. Clifton, Griswold 1979-7-26 10194 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  SD53197  Lupinus variicolor Darley F. Howe 1962-5-21 Humboldt 11.5 miles north of Garberville on Hwy 101 91 Comment
  HSC14130  Luzula comosa Paul Shields May 1955 Humboldt HSC campus Comment
  HSC23088  Luzula comosa D. E. Anderson 1965-5-1 3565 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC58244  Luzula comosa G. L. Clifton, Griswold 1979-8-2 12415 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC49098  Luzula comosa J. O. Sawyer 1977-4-23 2838 Humboldt Along Bald Hills Rd. E of Hoopa Comment
  HSC96237  Luzula comosa April A. Allard, Gregory D. O'Connell 2005-6-3 2 Humboldt 19.3mi S of Hwy. 299 on NF1 1246 Comment
  POM126143  Luzula parviflora Joseph P. Tracy 1923-6-24 6360 Humboldt Bald Mountain. In cold wet meadow near High Prairie. 1067 Comment
  JEPS60165  Lycopodium clavatum Hilda W. Grinnell 1932-7-23 46 Humboldt on ever-shaded oozy slope below McKay Camp; South Fork Mountain Comment
  CHSC2104  Lysichiton americanus M. Anthony 1960-5-14 Humboldt N. coastal. Comment
  RSA0023003  Lythrum Robert F. Thorne, P. C. Everett 1965-8-9 35324 Humboldt Clam Beach County Park: along highway. 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
  CAS-BOT-BC342798  Madia elegans Carl B. Wolf 1927-8-28 1162 Humboldt On the Trinity River, 3 miles from Weitchpec 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
  SD88396  Madia elegans subsp. vernalis Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville Comment
  CAS-BOT-BC344359  Madia exigua Doris K. Kildale 1927-6-25 3575 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  HSC74087  Madia gracilis Thomas W. Nelson, James Nelson 1976-5-30 2615 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS40411  Madia gracilis W. L. Jepson 1902-7-1 1967 Humboldt at Berry's Ranch; Redwood Creek Comment
  UCR10833  Madia madioides Sue De Groot 1962-6-14 112 Humboldt North Coast Range, hillside west of Richardson Grove, Eel River drainage to Pacific 122 Comment
  CAS-BOT-BC343588  Madia sativa Joseph P. Tracy 1927-6-18 8176 Humboldt Northern Coast Ranges. Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 30 Comment
  CAS-BOT-BC508511  Maianthemum dilatatum Volney Rattan 1883-6-4 s.n. Humboldt 3 miles east of Eureka Comment
  CAS-BOT-BC511452  Maianthemum racemosum subsp. amplexicaule Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC45493  Maianthemum racemosum subsp. amplexicaule Maralyn O'Meara 1972-6-8 105 Humboldt Along Bald Hills Rd., 18 mi. from junction with Hwy. 101 Comment
  UC1239528  Malacothrix floccifera Joseph P. Tracy 1916-9-5 4771 Humboldt 4 mi above Mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC481090  Malacothrix floccifera P. E. Goddard 1906-6 662 Humboldt Lasseck Peak Comment
  HSC41005  Malacothrix floccifera J. O. Sawyer 1975-10-17 2716 Humboldt Along road to Brush Mountain Lookout 1189 Comment
  UC1198760  Malus fusca J. P. Tracy 1899-5-14 102 Humboldt Eureka 0 Comment
  UC14182  Malus fusca W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  UC14229  Malus fusca Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  UCD113220  Malus fusca H. E. Parks 1933-4-1 4352 Humboldt Spruce Cove, Trinidad. Comment
  UCD116540  Malva verticillata Paul Holzberger 1981-8-24 s.n. Humboldt 1251 Williams Street, Eureka. Comment
  SDSU5797  Marah oregana D. F. Howe 1961-8-1 3116 Humboldt 3.3 miles north of Trinidad on #101. Comment
  HSC79362  Matricaria discoidea Kenneth Clark 1981-5-2 1360 Humboldt Point Delgada, Mario's Marina 15 Comment
  HSC14977  Medicago polymorpha D. B. Bader 1963-3-29 15 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC14975  Medicago polymorpha S. R. Johnson 1965-3-26 18 Humboldt 1 mi. S of Luffenholtz Beach Comment
  UCD107899  Medicago polymorpha W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  RSA152371  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  SEINET10599370  Melica californica Joseph P. Tracy 1913-6-18 Tracy 4195 Humboldt Gravelly grassy hillside, Dinsmore's Ranch, in valley of Van Duzen River opposite Buck Mountain. 762 Comment
  HSC98673  Melica harfordii Cara Witte 2008-7-10 848 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile from National Forest 1. Under powerlines. 1237 Comment
  UC1103754  Melica harfordii Joseph P. Tracy 1941-7-5 16968 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC75447  Melica spectabilis J. O. Sawyer 1980-7-18 3606 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC102547  Melica subulata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1536 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC10367  Melica subulata R. D. Zortman 1963-5-5 31 Humboldt 5 mi. NE of Arcata, S of Mad River, off Warren Creek Rd. 91 Comment
  HSC71789  Melica subulata Gail Newton 1980-6-16 181 Humboldt Near Monks Camp. 1097 Comment
  HSC46021  Melilotus albus Catherine Chin 1978-8-5 92 Humboldt 7th & A St., Arcata Comment
  HSC69698  Melilotus albus R. Kalal 1980-6-8 17 Humboldt Pump Station #1, along the Mad River 14 Comment
  POM283187  Melissa officinalis Lyman Benson 1929-7-16 91 Humboldt Weott Ranger Station. Comment
  UC213509  Mentha spicata Joseph P. Tracy 1919-9-14 5207 Humboldt borders Lack Pond (Trinity River Valley near Willow Creek); Northern Coast Ranges, Trinity River Valley nr Willow Creek 152 Comment
  RSA167435  Mentha spicata Joseph P. Tracy 1950-9-22 19370 Humboldt Klamath River near Slate Creek; below Orleans 8 miles. 122 Comment
  HSC15863  Mentzelia dispersa W. K. Parks Jul 1933 1420 Humboldt On Buck Mtn. Comment
  CAS-BOT-BC348374  Micropus californicus var. californicus S. K. Harris; J. P. Tracy 1942-6-15 s.n. Humboldt Harris Road, 1 mile east of Garberville 30 Comment
  UC1223199  Microseris douglasii subsp. douglasii Joseph P. Tracy 1948-5-31 17988 Humboldt near w side summit of Spruce Grove (near Harris) 762 Comment
  CAS-BOT-BC322682  Microseris laciniata K. L. Chambers 1969-5-26 2932 Humboldt Weitchpec, 0.8 mile west of Highway 96 on the way to the old school-house Comment
  RSA0106589  Microseris laciniata Joseph P. Tracy 1947-6-8 17706 Humboldt Carlotta; open flat by old Strong's District School House, 5 miles east of town. 61 Comment
  UC302297  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1926-5-2 7438 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC582440  Microseris nutans Joseph P. Tracy 1935-7-27 14307 Humboldt McKay Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC349239  Microseris nutans E. B. Babcock 1932-6-25 405 Humboldt Humboldt-Trinity Counties, South Fork Mt. north slope 1828 Comment
  HSC40549  Microsteris gracilis Thomas W. Nelson, Jane P. Nelson 1976-5-23 2519 Humboldt SW facing slopes 1666 Comment
  HSC70251  Microsteris gracilis M. A. Baker 1980-6-8 1917 Humboldt Near Buck Flat. 1554 Comment
  HSC77403  Microsteris gracilis L. P. Janeway 1983-4-16 229 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  SEINET200379  Microsteris gracilis J. P. Tracy 1930-5-4 8692 Humboldt Larrabee Valley 701 Comment
  HSC20685  Mimulus aurantiacus var. aurantiacus Steve Dorei 1970-10-31 132 Humboldt Scotia bluff area, N side of railroad tracks. Comment
  HSC22023  Mimulus aurantiacus var. aurantiacus Thomas W. Nelson 1970-10-17 239 Humboldt Mouth of Prairie Creek Comment
  JEPS35817  Mimulus aurantiacus var. aurantiacus Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8963 Humboldt just above (1/8 mi) and e Shelter Cove Comment
  UC1196799  Mimulus breweri Joseph P. Tracy 1912-7-31 3920 Humboldt near summit Buck Mountain; Northern Coast Ranges 1676 Comment
  UC162579  Mimulus cardinalis Joseph P. Tracy 1911-7-10 3480 Humboldt tributary of Trinity River (along Willow Creek near mouth); Northern Coast Ranges 243 Comment
  UC169098  Mimulus cardinalis Harley P. Chandler 1901-6-16 1520 Humboldt Somes Bar North Coast Ranges, Klamath River 426 Comment
  SEINET12269811  Mimulus dentatus Unknown 1936-1 13277 Humboldt near Trinidad Comment
  UC1196836  Mimulus grandis J. P. Tracy 1901-6-16 1139 Humboldt immediate vicinity Eureka (near Bucksport) 0 Comment
  UC446440  Mimulus guttatus P. E. Goddard 1906-6 678 Humboldt Lasseck Pk. Comment
  HSC20749  Mimulus guttatus T. M. Mingo May 1965 Humboldt About 100 ft. N of the intersection of Fairhaven Dr. and old Hwy. 101 Comment
  POM273242  Mimulus guttatus Lyman Benson 1928-7-10 453 Humboldt Eureka, along ocean bluffs. Comment
  HSC76046  Mimulus moschatus Overton, Butler 1979-8-2 12559 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  POM273194  Mimulus moschatus var. sessilifolius Lyman Benson 1929-7-19 1873 Humboldt Mouth of Matole River. Comment
  UC582597  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15597 Humboldt Hyampon Trail South Fork Mountain 1676 Comment
  HSC100674  Mimulus nasutus Carl C. Marshall 434 Humboldt Mtns. of Humboldt, open ridges near water. Comment
  HSC20787  Mimulus pilosus D. E. Anderson 1963-10-6 2879 Humboldt Mad River bed, across from Essex Junction. Comment
  UC582497  Mimulus primuloides Joseph P. Tracy 1935-7-26 14258 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UC582498  Mimulus primuloides subsp. primuloides Joseph P. Tracy 1932-7-14 10534 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC82387  Mimulus primuloides var. primuloides Thomas W. Nelson 1979-7-11 5011 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC388627  Minuartia douglasii Joseph P. Tracy 1930-6-21 8783 Humboldt Larrabee Valley 731 Comment
  HSC20242  Mitella caulescens D. E. Anderson 1967-6-7 4350 Humboldt Along Puter Creek, tributary to Mad River, about 3 mi. S of Blue Lake Comment
  UC303177  Mitella caulescens Joseph P. Tracy 1923-6-24 6361 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC303175  Mitella ovalis Joseph P. Tracy 1923-6-20 6310 Humboldt White Thorn Valley Northern Coast Ranges (banks of creek) 304 Comment
  CAS-BOT-BC433029  Mitella ovalis Doris K. Kildale 1927-6-25 3577 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  HSC55834  Mitella trifida G. L. Clifton, Griswold 1979-7-25 10760 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC4066  Moehringia macrophylla Elrid H. Spinas 1948-5-15 1 Humboldt Horse Mtn. Comment
  HSC73710  Moehringia macrophylla M. A. Baker 1980-7-15 2979 Humboldt Near Whiting Ridge 301 Comment
  HSC99385  Moehringia macrophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 34 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1223238  Moehringia macrophylla Joseph P. Tracy 1951-6-26 19558 Humboldt halfway between Snow Camp and Twin Lakes ((at Charley Preston's old gate near the road)); between Snow Camp and Twin Lakes Comment
  SDSU7320  Monardella odoratissima Harvey 1939-7-16 2428 Humboldt us 101 Comment
  HSC102521  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1508 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  CAS-BOT-BC215569  Monardella odoratissima subsp. pallida Doris K. Kildale 1925-8-18 1229 Humboldt Trinity Summit 1828 Comment
  HSC58069  Monardella odoratissima subsp. pallida G. L. Clifton, Griswold 1979-8-1 11953 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC32590  Monardella odoratissima subsp. pallida Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  JEPS63387  Monardella purpurea Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  HSC32512  Monardella sheltonii Thomas W. Nelson 1973-9-3 1134 Humboldt McKeown Ranch N of Dinsmore Comment
  CAS-BOT-BC220519  Monardella villosa Hubert O. Jenkins 1943-8-1 s.n. Humboldt In dry rocky bed of Eel River, Richardson Grove Comment
  UCD101747  Montia diffusa Don Hagar 1956-5-14 59 Humboldt Brush Mountain, 6 miles southwest of Willow Creek. 914 Comment
  RSA322445  Montia parvifolia J. P. Smith 1973-5-26 6851 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC16100  Morella californica P. Markle 1962-5-24 63 Humboldt Edge of 18th St. in Arcata 30 Comment
  UC1103784  Muhlenbergia filiformis Joseph P. Tracy 1931-9-7 9656 Humboldt on sand bar along river Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC526744  Muhlenbergia filiformis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8920 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (in wet meadow) 1676 Comment
  UCD86803  Muhlenbergia mexicana Joseph P. Tracy 1916-9-5 4774 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  HSC3737  Myosotis discolor D. E. Anderson 1963-5-25 2490 Humboldt Ca. 1 mi. S of Capetown Comment
  HSC45080  Myosotis discolor R. Sutherland 1978-5-12 11 .12578 Humboldt 282 Comment
  HSC63980  Myosotis sylvatica J. P. Smith 1973-5-26 6855 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC582609  Myosotis verna Joseph P. Tracy 1937-5-17 15297 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC101668  Myrica californica Doris K. Kildale 1926-3-20 1551 Humboldt Big Lagoon Comment
  JEPS30059  Myrica californica Mr. and Mrs. George Parrish 1930-5-21 Humboldt Trinidad Comment
  SEINET3992074  Narthecium californicum Unknown 1930-7-17 9003 Humboldt South Fork Mountain, at McKay Camp 1676 Comment
  UCD87817  Nassella lepida D. W. Cooper 1956-4-27 s.n. Humboldt Mattole area. Around Petrolia. Comment
  HSC56058  Navarretia divaricata G. L. Clifton, Griswold 1979-7-31 11693 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC99451  Navarretia divaricata subsp. divaricata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 101 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC146173  Navarretia intertexta Joseph P. Tracy 1908-6 2799 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC34708  Navarretia squarrosa Thomas W. Nelson 1974-7-20 1696 Humboldt McKeown Ranch N of Dinsmore Comment
  UCR143528  Navarretia tagetina J. P. Tracy 1950-6-23 18862 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint 213 Comment
  POM182444  Navarretia tagetina Chestnut, E. R. Drew 1888-7-23 s.n. Humboldt Hy-Am-Pom [=Hyampom, Trinity Co?] Comment
  UC1198524  Navarretia tagetina Joseph P. Tracy 1942-7-1 17362 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  UC249525  Nemophila menziesii var. atomaria Joseph P. Tracy 1922-4-30 6026 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, , nr Willow Creek 152 Comment
  HSC57706  Nemophila parviflora G. L. Clifton, Griswold 1979-7-25 10955 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC562590  Nemophila pedunculata Joseph P. Tracy 1927-3-27 7858 Humboldt near South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC60566  Noccaea fendleri subsp. glauca Thomas Nelson 1977-6-15 3437 Humboldt North Coast Ranges. Along old road to ski area. 1371 Comment
  HSC8078  Notholithocarpus densiflorus var. densiflorus D. E. Anderson 1961-8-27 1759 Humboldt 8 mi. W of Redwood Creek Br. along Hwy. 299 Comment
  HSC36066  Nuphar polysepala Wm. Henry 1973-5-12 Humboldt Clam Beach Lagoon, .5 mi. S of Little River Comment
  HSC59715  Nuttallanthus texanus Clark L. Miller 1979-5-9 1110 Humboldt Samoa Dunes off Samoa Blvd. Comment
  CAS-BOT-BC142299  Oemleria cerasiformis C. Hart Merriam 1921-7-8 s.n. Humboldt Fortuna Comment
  CDA38491  Oenanthe sarmentosa Margaret Bellue Jul 1933 s.n. Humboldt Arcata. 0 Comment
  JEPS35818  Oenanthe sarmentosa Rimo Bacigalupi and L. R. Heckard 1964-7-28 8964 Humboldt 1/8 mi. above Shelter Cove (near water tanks for supplying Shelter Cove) Comment
  UCR111734  Oenothera wolfii D. K. Imper 1993-5-13 s.n. Humboldt North Coast, Lost Coast Road c. 4 miles south of Cape Mendocino at Davis Creek Bridge, from bridge along road c. 300 ft. to north 6 Comment
  UC637063  Orobanche californica subsp. californica Edward Lee 1934-8-17 1152 Humboldt East shore of Big Lagoon, 35 miles north of Eureka. Comment
  HSC39391  Orobanche fasciculata D. E. Anderson, J. P. Smith 1971-7-6 - 1274 Humboldt Horse Mtn. Comment
  HSC102611  Orobanche uniflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1598 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC98561  Orobanche uniflora Cara Witte 2008-6-15 733 Humboldt Coldspring Camp. 1410 Comment
  UC35308  Orobanche uniflora subsp. occidentalis W. C. Blasdale 1896-6-8 Humboldt Graham's. Comment
  JEPS14225  Orogenia fusiformis Joseph P. Tracy 1932-7-15 10595 Humboldt ridges e. of Corral Prairie Trinity Summit 1828 Comment
  HSC102035  Orthilia secunda M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 938 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC54894  Orthilia secunda G. L. Clifton, Griswold 1979-7-25 10935 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1212578  Orthilia secunda Francia Chisaki and Helen Sharsmith 1959-8-21 4758 Humboldt Happy Camp just over line from trinity County 914 Comment
  HSC73605  Orthocarpus cuspidatus subsp. copelandii M. A. Baker 1980-7-22 3096 Humboldt Near Grogan Hole. 1676 Comment
  JEPS26161  Orthocarpus imbricatus E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1524 Comment
  SEINET12270144  Orthocarpus imbricatus J. P. Tracy 1951-1 19562 Humboldt halfway between Snow Camp & Twin Lakes Comment
  UC1197133  Osmorhiza berteroi Joseph P. Tracy Jul 27 1908-Jul 30 1908 2738 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC79449  Osmorhiza berteroi Kenneth Clark 1980-4-18 576 Humboldt On access trail to Dead Man's Gulch 52 Comment
  UC162920  Osmorhiza berteroi Joseph P. Tracy 1911-7-5 3322 Humboldt along Willow Creek near mouth (creek is a tributary of Trinity River)); Northern Coast Ranges 304 Comment
  UCR123963  Osmorhiza chilensis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6973 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
  HSC55852  Osmorhiza occidentalis G. L. Clifton, Terry Griswold 1979-7-25 10822 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC55971  Osmorhiza occidentalis G. L. Clifton, Overton 1979-7-31 11355 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1433 Comment
  RSA254742  Osmorhiza purpurea Thomas W. Nelson, James Nelson 1973-5-28 945 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC89718  Oxalis corniculata Larry Levine, Manuel Pachero, Murphey 1989-2-24 2 Humboldt HSU campus, garden plot SW of Buckhouse 40 Comment
  CHSC94937  Oxalis oregana K. Lang; J. Lang 2005-3-16 27 Humboldt Trinidad, No. California coast. 51 Comment
  SBBG67545  Oxalis oregana L. Rowntree 1931-7-24 Humboldt Carlotta Comment
  UC1103424  Oxalis oregana Joseph P. Tracy 1901-4-7 1006 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC726372  Oxalis oregana A. A. Heller 1923-7-8 13770 Humboldt near Pepperwood Comment
  HSC8609  Oxalis oregana R. A. Rasp 1964-4-5 30 Humboldt 7 mi. past Hoopa on Willow Creek Rd. Comment
  POM186936  Oxalis oregana Marcus E. Jones 1931-7-14 28949 Humboldt South of Eureka Comment
  POM353445  Oxalis oregana J. P. Smith 1973-5-26 6852 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1103420  Oxalis oregana Joseph P. Tracy 1923-5-13 6198 Humboldt near Strong's Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  UC56731  Oxalis oregana Harley P. Chandler May, 1901 1160 Humboldt North Coast Ranges 30 Comment
  UCSB7499  Oxalis oregana Phillips, Priscilla 1958-6-7 Humboldt Near entrance to Prairie Creek Redwood Park, north of Orick Comment
  JEPS109970  Oxalis trilliifolia D. W. Taylor 2004-6-24 19139 Humboldt Head of Madden Creek, Ammon Ridge, seepage area along Forest Road 5N15 0.4 miles W of the junction with Forest Road 5N01. Comment
  HSC70179  Packera bolanderi Thomas W. Nelson, Jane P. Nelson 1978-7-4 4415 Humboldt Along county road ca. 3 mi. SE of Kneeland Airport 762 Comment
  CAS-BOT-BC318156  Packera bolanderi var. bolanderi Doris K. Kildale 1927-8-13 3856 Humboldt Across the Van Duzon River from Swimmer's Delight near Sting's Station Comment
  UC187241  Panicum acuminatum var. acuminatum Joseph P. Tracy 1906-7-1 2517 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  RSA10048  Panicum miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1103770  Panicum miliaceum subsp. miliaceum J. C. Tario Jr. 1931-8-20 Humboldt Eureka 30 Comment
  HSC13258  Parapholis incurva D. E. Anderson 1965-6-10 3794 Humboldt Harbor area of Eureka. Comment
  SJSU10754  Parapholis incurva H. T. Harvey 1977-7-5 601 Humboldt Elk River Spit by Humboldt Bay Comment
  UC1222446  Parentucellia viscosa H. E. Parks and Joseph P. Tracy 1932-8-13 10348 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UC1222448  Parentucellia viscosa Joseph P. Tracy 1934-6-18 13230 Humboldt Eureka 6 Comment
  CAS-BOT-BC259728  Paspalum distichum Joseph P. Tracy 1934-7-30 13498 Humboldt Dry Lagoon, on coast near Stone Lagoon 3 Comment
  HSC10525  Paspalum distichum Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  UC249859  Paspalum distichum Joseph P. Tracy 1924-8-31 6842 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges, Klamath River at Bluff Creek 91 Comment
  UC642347  Pastinaca sativa Joseph P. Tracy 1937-10-31 15694 Humboldt Rio Dell 30 Comment
  BLMAR620  Paxistima myrsinites Jennifer Wheeler 2011-5-24 620 Humboldt Lacks Creek, Pine Ridge/Stormy saddle road junction 975 Comment
  HSC104037  Pedicularis densiflora C. Reynolds 2015-3-21 23 Humboldt Willow Creek; at the entrance to Camp Kimtu 159 Comment
  UCD123312  Pedicularis densiflora Joseph M. DiTomaso 1976-3-28 361 Humboldt 3 miles east of Willow Creek on Highway 299. Comment
  UC90221  Pedicularis groenlandica Joseph P. Tracy 1947-7-5 17824 Humboldt at Box Camp Box Camp; Trinity Summit 1463 Comment
  CAS-BOT-BC69339  Pellaea brachyptera Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC71289  Pellaea brachyptera Chesnut and Drew 1888-7-21 Humboldt Pilot Ridge Comment
  HSC55753  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-26 10285 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1198046  Penstemon anguineus Joseph P. Tracy 1933-7-27 12869 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC577414  Penstemon anguineus Joseph P. Tracy 1936-7-5 15035 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC100680  Penstemon azureus Carl C. Marshall 461 Humboldt Near P. Asbills, S Humboldt. Comment
  JEPS28975  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16543 Humboldt Garberville Garberville (on river bar) 152 Comment
  JEPS11634  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15513 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  UC41715  Penstemon laetus var. sagittatus Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC56083  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-7-31 11771 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC32679  Penstemon purpusii Thomas W. Nelson 1973-7-10 1029 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  NY641283  Penstemon rattanii J. P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762.0 Comment
  HSC39986  Pentagramma triangularis Linda M. Barker 1976-3-11 1329 Humboldt 3 mi. W of Arcata Comment
  HSC32529  Perideridia kelloggii Thomas W. Nelson 1973-9-3 1133 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC98872  Perideridia oregana Cara Witte 2007-7-5 421 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  HSC37362  Petasites frigidus var. palmatus Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 494 Humboldt Along Lost Man Creek. 38 Comment
  HSC6050  Petasites frigidus var. palmatus C. O. Baker 1962-3-22 6 Humboldt 2 mi. S of Trinidad along old Hwy. 101 183 Comment
  HSC100713  Petasites palmatus Carl C. Marshall Apr 1886 54 Humboldt Banks of streams. Comment
  JEPS1435  Phacelia bolanderi Joseph P. Tracy 1916-5-31 4704 Humboldt Stitz Creek Bluff Northern Coast Ranges, Eel River 60 Comment
  JEPS1438  Phacelia bolanderi W. L. Jepson 1932-8-9 16536 Humboldt Bull Creek 106 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
  RSA167318  Phacelia bolanderi Joseph P. Tracy 1950-6-18 18852 Humboldt Briceland Comment
  HSC100721  Phacelia bolanderi Carl C. Marshall Jun 1887 409 Humboldt S Fork of Eel River and Eel River. Comment
  RSA249336  Phacelia corymbosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5621 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  RSA167317  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1951-6-24 19539 Humboldt Rock exposure between serpentine rock pile and Ashfield Butte. Kneeland Prarie. 762 Comment
  UC562572  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1935-7-30 14385 Humboldt near top Salmon Summit 2103 Comment
  HSC56933  Phacelia mutabilis G. L. Clifton, Butler 1979-7-26 9369 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC774626  Phacelia mutabilis Carl B. Wolf 1937-8-13 9238 Humboldt 8 mi e Hoopa Valley (on new road towards Trinity Summit); North Coast Range 1219 Comment
  BLMAR159  Phacelia nemoralis subsp. nemoralis Donald Hazlett 1994-6-7 159 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC75489  Phacelia procera J. O. Sawyer 1980-7-18 3630 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1132414  Phalaris aquatica H. S. Yates 1936-6-23 5857 Humboldt 2 mi se mouth of Mad River; Eureka Quad. Comment
  UC1103763  Phalaris arundinacea Joseph P. Tracy 1934-10-21 13695 Humboldt along coast in front of south end Stone Lagoon (Dry Lagoon); in front of South End Stone Lagoon, Dry Lagoon 3 Comment
  HSC56132  Philadelphus californicus G. L. Clifton, Griswold 1979-8-1 11949 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC1198875  Philadelphus lewisii Joseph P. Tracy 1925-11-25 7327 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1145045  Phleum pratense Joseph P. Tracy 1948-8-8 18089 Humboldt Iaqua; near the school house 609 Comment
  HSC44533  Phlox adsurgens Brad Klipfel 1973-7-1 140 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1198559  Phlox gracilis Joseph P. Tracy 1932-4-24 9824 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  JEPS42597  Phoradendron villosum Lincoln Constance 1934-5-29 737 Humboldt Bull Creek Region, S. Fork Eel R., Upper Look Prairie 365 Comment
  UCD138391  Phyllospadix torreyi Joseph P. Tracy 1938-9-9 16146 Humboldt Trinidad. 3 Comment
  HSC31639  Physocarpus capitatus Glenn McGourty 1974-6-1 83 Humboldt Comment
  JEPS46733  Picea sitchensis Goddard Humboldt Comment
  NY34413  Picea sitchensis E. Fritz 1935-8-16 8154 Humboldt Comment
  RSA20776  Pinus attenuata C. B. Wolf 1937-8-13 9240 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1134104  Pinus contorta subsp. contorta H. S. Yates 1936-6-16 5660 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  UC400254  Pinus contorta subsp. contorta J. P. Tracy 1901-2-1 Humboldt opp. Eureka (sand hills of Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  RSA384301  Pinus contorta var. contorta E. A. Purer 1932-7-27 4132 Humboldt Samoa, near Arcata. Comment
  RSA46681  Pinus contorta var. contorta Doris K. Kildale 1937-8-12 15084 B Humboldt South Fork Mountain. Comment
Read comments
Jun 21 2012
  CAS-BOT-BC73114  Pinus lambertiana Doris K. Kildale 1926-8-15 2543 Humboldt Hoopa Mt. 792 Comment
  HSC54513  Pinus monticola Overton, Butler 1979-7-23 9429 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  CAS-BOT-BC78981  Pinus muricata Elmer I. Applegate 1931-3-28 6626 Humboldt Near and north of Trinidad Comment
  JEPS48196  Pinus ponderosa W. L. Jepson 1902-6-18 1876 Humboldt Cummings to Harris Blue Rock Ridge 1219 Comment
  HSC104330  Piperia candida James Regan, Humboldt Redwood Co., LLC 2010-7-8 26 Humboldt Top of Thompson Creek, Larabee area 610 Comment
  UC303142  Piperia elongata Joseph P. Tracy 1925-7-12 7213 Humboldt near the South Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC102924  Plagiobothrys M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 862 Humboldt Patterson Meadows 1555 Comment
  UCD120864  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove, Trinidad. 64 Comment
  UC1222206  Plagiobothrys scouleri Joseph P. Tracy 1946-5-30 17538 Humboldt 2 mi so Bridgeville 457 Comment
  UC1222208  Plagiobothrys scouleri Joseph P. Tracy 1948-6-13 18032 Humboldt between Bridgeville and Blocksburg (on Larrabee Creek road) Comment
  UC1222215  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18322 Humboldt at Cameron Hill on the Kneeland Road Cameron Hill Comment
  POM61312  Plantago hirtella var. galeottiana Joseph P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC16836  Plantago lanceolata A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction, 200 yds. W of Lindsey Creek Comment
  HSC26450  Plantago maritima T. O. Osborne 1970-6-6 12 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  UC1196133  Plantago subnuda J. P. Tracy 1901-6-30 1212 Humboldt immediate vicinity Eureka 0 Comment
  UC176370  Platanthera leucostachys Joseph P. Tracy 1912-7-31 3901 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain 1066 Comment
  CAS-BOT-BC91631  Platystemon californicus Alice Eastwood s.n. Humboldt Samoa. Comment
  CAS-BOT-BC91642  Platystemon californicus W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  HSC59485  Platystemon californicus M. A. Ericksen 1979-4-29 240 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  UC1239575  Plectritis congesta Joseph P. Tracy 1914-7-5 4568 Humboldt Northern Coast Ranges, High Prairie on Bald Mountain Bald Mountain; Northern Coast Ranges, , High Prairie 1066 Comment
  HSC44410  Plectritis macrocera R. York 1978-5-6 162 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  HSC10612  Pleuropogon refractus L. M. Malloy 1965-5-15 37 Humboldt 2 mi. N of Trinidad on Trinity St. Comment
  HSC10642  Poa bolanderi C. S. Chavez 1965-5-7 67 Humboldt Redwood forest behind H.S.C. campus. Comment
  UC1103189  Poa bulbosa Joseph P. Tracy 1938-7-4 15988 Humboldt Valley of S Yager Creek 762 Comment
  HSC75490  Poa compressa J. O. Sawyer 1980-7-18 3631 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC10678  Poa confinis J. W. Johnson 1962-4-10 1239 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  RSA176927  Poa confinis P. H. Raven 1963-5-15 18372 Humboldt Lanphere Ranch just west of Mad River Slough; near Arcata Comment
  SACT001836  Poa confinis Lyle Bibb 1963-5-11 Humboldt Coastal strand amound sandy beach east or Arcata. Sand spit. Comment
  OBI35877  Poa douglasii David J. Keil 1983-7-1 17286 Humboldt Ca. 5 mi NW of Petrolia along Mattlole Rd Comment
  RSA10144  Poa howellii Joseph P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie 762 Comment
  UC576260  Poa howellii H. S. Yates 1936-6-16 5683 Humboldt near Bayside; Eureka Quadrangle 9 Comment
  CAS-BOT-BC255848  Poa kelloggii Joseph P. Tracy 1906-5-20 2463 Humboldt Near Eureka, region about Humboldt Bay 152 Comment
  UC525620  Poa kelloggii Joseph P. Tracy 1926-4-25 7415 Humboldt on Van Duzen River Grizzly Creek; North Coast Ranges 91 Comment
  SEINET10855127  Poa kelloggii Joseph P. Tracy 1911-6-4 Tracy 3219 Humboldt Along Little River Humboldt County 5 miles from the coast. Comment
  LA12558  Poa macrantha S. K. Harris; 1936-6-15 3383 Humboldt Trinidad Head Comment
  SEINET190491 Image available Poa macrantha H. E. Parks 1934-5-1 4805 Humboldt Little River Lagoon Comment
  HSC74757  Poa pratensis Gail Newton 1981-7-24 2307 Humboldt Near Chaparral Mtn. 1433 Comment
  RSA10072  Poa pratensis Joseph P. Tracy 1926-5-9 7469 .5 Humboldt Valley of south Yager Creek Comment
  UCD91935  Poa pratensis A. H. Murphy 1951-4-19 11 Humboldt Tooby and Prior Ranch, 2 miles south of Blocksburg. Comment
  UC552763  Poa pratensis subsp. pratensis Joseph P. Tracy 1935-6-23 13987 Humboldt French Camp Ridge 1066 Comment
  HSC32337  Poa secunda subsp. secunda D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5644 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC249504  Poa secunda subsp. secunda Joseph P. Tracy 1922-4-30 6011 Humboldt near Willow Creek Trinity River Valley; Northern Coast Ranges 152 Comment
  RSA10114  Poa trivialis Joseph P. Tracy 1926-6-12 7587 Humboldt near Quick at Davison's Ranch. 61 Comment
  UC1191118  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  POM138540  Polygala californica H. P. Chandler 1901-06 1328 Humboldt Hupa Indian Reservation. 152 Comment
  HSC67530  Polygala cornuta J. P. Smith, Steve Selva 1970-6-14 3841 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1541401  Polygonum amphibium var. emersum H. E. Parks August 1934 5165 Humboldt Big Lagoon Comment
  HSC12351  Polygonum aviculare Steve Dorei 1970-10-31 141 Humboldt Scotia Bluffs, N of railroad tracks Comment
  UC1192343  Polygonum aviculare subsp. aviculare Malcolm A. Nobs and S. Galen Smith 1949-8-11 1344 Humboldt Stone Lagoon; marsh on e shore Comment
  HSC17512  Polygonum paronychia J. W. Johnson 1961-8-17 1041 Humboldt Dune fields of W.M. Lanphere Farm, Samoa Peninsula Comment
  UC1101120  Polygonum persicaria Malcolm A. Nobs and S. Galen Smith 1949-8-9 1233 Humboldt Town of Blue Lake; marshy pond on s side Comment
  HSC55057  Polygonum polygaloides subsp. kelloggii G. L. Clifton, Griswold 1979-7-31 11690 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CDA2925  Polygonum polystachyum T. C. Fuller 1961-9-27 7040 Humboldt Slope of bluff north above mouth of Redwood Creek, 1.5 miles west of Orick. 0 Comment
  RSA109297  Polygonum sachalinense H. E. Parks, S. T. Parks 1952-07 24448 Humboldt South of the Elk River Bridge on Hwy 10 Comment
  POM302976  Polygonum spergulariiforme H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans. Comment
  HSC63228  Polypodium californicum M. A. Baker 1978-5-6 468 Humboldt Weitchpec Comment
  CHSC37525  Polypodium glycyrrhiza M. S. Taylor 1982-10-24 5184 Humboldt Samoa, under bridge, ca. 1 mi nw of Eureka. 0 Comment
  CAS-BOT-BC76841  Polypodium glycyrrhiza Volney Rattan 1903-1-1 s.n. Humboldt Above Mad River. Comment
  HSC67085  Polypodium glycyrrhiza Richard Spjut 1980-5-20 6199 Humboldt 2 mi. W of Willow Creek along Hwy. 299 below Boise Campground near stream 305 Comment
  UC667949  Polypodium glycyrrhiza Joseph P. Tracy 1936-3-8 14775 Humboldt along S Fork Eel River Miranda 121 Comment
  CAS-BOT-BC72087  Polypodium scouleri T. G. W. s.n. Humboldt Arcata Comment
  CAS-BOT-BC72088  Polypodium scouleri John Thomas Howell 1954-4-25 29159 A Humboldt Trinidad Head Comment
  HSC1113  Polypodium scouleri D. E. Anderson 1961-8-11 1723 Humboldt E of HSC campus Comment
  HSC1121  Polypodium scouleri J. R. Good 1964-5-13 48 Humboldt N 0.25 mi. from end of Lanpheres Rd. on sand dune Comment
  JEPS82390  Polypogon interruptus A. S. Hitchcock 1915-7-13 839 Humboldt Eureka Comment
  CAS-BOT-BC233214  Polypogon maritimus Joseph P. Tracy 1934-7-9 13351 Humboldt Dobbyn Creek 152 Comment
  SEINET200579 Image available Polypogon maritimus J. P. Tracy 1930-10-19 9236 Humboldt Eel River on gravel bars Alton to Fortuna 0 Comment
  RSA54138  Polypogon monspeliensis Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  HSC13042  Polystichum munitum T. C. DeCew 1970-11-14 35 Humboldt HSU Campus Comment
  RSA1504  Polystichum munitum E. R. Johnson 1929-08 1409 Humboldt Arcata Redwood Park 76 Comment
  UC906749  Polystichum munitum Joseph P. Tracy 1947-7-9 17843 Humboldt Horse Mt. 1432 Comment
  JEPS33235  Polystichum munitum Lincoln Constance 1934-6-11 850 Humboldt S Fork Eel River Comment
  UC249777  Polystichum munitum Joseph P. Tracy 1924-8-10 6803 Humboldt near Strongs Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  UC492234  Populus trichocarpa Joseph P. Tracy 1932-4-24 9801 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  CAS-BOT-BC453767  Potamogeton natans Larry DeBuhr; Gary Wallace 1973-5-19 1117 Humboldt Prairie Creek Redwood State Park; at Gold Bluff Beach Comment
  CAS-BOT-BC454067  Potamogeton pusillus subsp. pusillus S. K. Harris 1938-9-12 s.n. Humboldt Backwater of Eel River, near Fernbridge Comment
  RSA246825  Potamogeton richardsonii Robert F. Thorne 1965-9-19 35462 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  UC302159  Potamogeton richardsonii E. G. Pluke 1926-8-1 Humboldt w of Dows Prairie (lagoon at mouth of Widow White Creek); Widow White Creek 3 Comment
  CAS-BOT-BC143078  Potentilla anserina subsp. pacifica Carl B. Wolf 1927-8-22 792 Humboldt Big Lagoon Comment
  HSC18731  Potentilla anserina subsp. pacifica W. A. Heaton 1965-5-17 3 Humboldt 1/2 mi. N of Trinidad on trail near beach Comment
  RSA245008  Potentilla anserina var. grandis Jerry Parker 1968-10-13 111 Humboldt Coastal Strand near the mouth of the Mad River. Comment
  RSA12434  Potentilla gracilis Carl B. Wolf 1934-7-2 5859 Humboldt 5.5 miles from Bald Mt. on road to Snow Camp 915 Comment
  UC154046  Potentilla gracilis var. gracilis Joseph P. Tracy 1908-6 2752 Humboldt nw slope Buck Mountain; Northern Coast Ranges, nw slope Buck Mountain 762 Comment
  UC154515  Potentilla gracilis var. gracilis Harley P. Chandler June, 1901 1390 Humboldt Hupa Indian Reservation North Coast Ranges, , Hupa Valley (Hupa Valley) 152 Comment
  UCD139805  Prosartes hookeri H. P. Olmo 1931-6-8 s.n. Humboldt near Orich. Comment
  SEINET12044823  Prosartes smithii H. C. Cantelow 1936-1 s.n. Humboldt 5 mi N of Orick Comment
  HSC26841  Prunella vulgaris Thomas W. Nelson 1971-1-8 321 Humboldt Ferndale next to Co. Fair Grounds Comment
  HSC81963  Prunella vulgaris subsp. lanceolata Thomas W. Nelson, Jane P. Nelson 1979-7-3 4946 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  JEPS62488  Prunella vulgaris var. lanceolata Joseph P. Tracy 1940-9-26 16729 Humboldt Eureka 6 Comment
  RSA43859  Prunus avium H. M. Pollard 1948-7-20 s.n. Humboldt River banks, roadsides and edges of forest near Orleans escape Comment
Read comments
Sep 17 2010
  CAS-BOT-BC159983  Prunus emarginata Doris K. Kildale; L. B. Kildale 1930-5-5 9554 Humboldt Bug Creek, Chaparral Mt. Comment
  HSC56201  Prunus emarginata Gilbert Muth 1979-8-1 12184 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  POM161041  Prunus emarginata Joseph P. Tracy 1919-9-24 5296 Humboldt Trinity Summit 1829 Comment
  RSA454167  Prunus subcordata Anstruther Davidson 1927-05 s.n. Humboldt [Unspecified] Comment
  UC1198773  Prunus virginiana var. demissa Joseph P. Tracy 1933-5-14 12176 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC666842  Prunus virginiana var. demissa Joseph P. Tracy 1933-7-16 12796 Humboldt South Fork Mountain, W slope near top, at Hyampom Trail 1676 Comment
  CAS-BOT-BC356655  Pseudognaphalium californicum Joseph P. Tracy 1937-7-11 15415 Humboldt Vicinity of Garberville 121 Comment
  UC164851  Pseudognaphalium ramosissimum Joseph P. Tracy 1909-9-19 3095 Humboldt sand dunes of ocean beach at Humboldt Bay; Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC357606  Pseudognaphalium stramineum Joseph P. Tracy 1937-6-26 15364 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC582510  Pseudognaphalium stramineum Joseph P. Tracy 1937-8-3 15614 Humboldt near Blue Lake; Mad River 15 Comment
  UC165750  Pseudognaphalium stramineum Joseph P. Tracy 1909-9-19 3089 Humboldt sand dunes of ocean beach at Humboldt Bay Humboldt Bay Comment
  CAS-BOT-BC80117  Pseudotsuga menziesii Carl B. Wolf 1936-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew P.O. 304 Comment
  CAS-BOT-BC80118  Pseudotsuga menziesii Doris K. Kildale 1928-7-1 5664 Humboldt Klamath River at mouth of Bluff Creek Comment
  UCR246635  Pseudotsuga menziesii Dean Kelch, D. A. Weinstein 2007-7-25 07- 510 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  HSC76291  Pseudotsuga menziesii var. menziesii Denis Kearns 1981-7-23 391 Humboldt Near Whiteys Peak 732 Comment
  RSA170252  Psilocarphus brevissimus Joseph P. Tracy, Francis W. Pennell 1940-7-7 16674 Humboldt Grouse Mountain. 1555 Comment
  UC1222911  Psilocarphus oregonus Joseph P. Tracy 1949-8-11 18479 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek); Kinsey Ridge 1402 Comment
  OBI15564  Psilocarphus tenellus Joseph P. Tracy 2017-5-27 4783 Humboldt Northern Coast Ranges. Eureka 61 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
  RSA178581  Pterospora andromedea Joseph P. Tracy 1950-8-8 19274 Humboldt 3 miles east of Box Camp. Comment
  UC577346  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC460600  Pyrola aphylla Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC460605  Pyrola aphylla Doris K. Kildale 1925-6-28 840 Humboldt Laurence Creek 609 Comment
  UCD117813  Pyrola aphylla K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 609 Comment
  JEPS66559  Pyrola asarifolia Joseph P. Tracy 1936-6-28 15016 Humboldt Bald Mountain at Lake Prairie 1066 Comment
  CAS-BOT-BC462868  Pyrola asarifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC17970  Pyrola asarifolia subsp. bracteata J. Wendell Howe 1930-6-28 Humboldt Kneeland Prairie, edge of Redwood Belt Comment
  JEPS48537  Pyrola crypta Hilda W. Grinnell 1932-7-19 29 Humboldt McKay Camp, So. Fork Mt. Comment
  RSA0080628  Pyrola dentata C. B. Wolf 1937-8-13 9242 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1197578  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit near Corral Prairie; Trinity Summit 1584 Comment
  UC1196530  Quercus chrysolepis Joseph P. Tracy 1935-7-14 14066 Humboldt ridge back of Clear Lake; North Coast Ranges, Grouse Mountain 1524 Comment
  UC667987  Quercus garryana Joseph P. Tracy 1938-6-13 15915 Humboldt Cold Springs Grouse Mountain 1432 Comment
  UC709423  Quercus garryana Joseph P. Tracy 1941-3-26 16845 Humboldt w of mouth of South Fork of Trinity River; South Fork of Trinity River 304 Comment
  SEINET12034478  Quercus garryana K. S. Erdman 1970-1 4764 Humboldt Schoolhouse Peak on Bald Hills Road about 16 mi S of Orick,T9N,R2E,Sec24 914 Comment
  UC667985  Quercus garryana var. breweri Joseph P. Tracy 1935-7-14 14091 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC99122  Quercus garryana var. garryana Cara Witte 2008-9-13 1041 Humboldt Forest Service Road 4N38. 1/2 mile south of intersection to Tri Board Camp. 1506 Comment
  HSC70635  Quercus sadleriana R. York 1980-5-18 601 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC539322  Quercus wislizeni Lois Weeth; Kerry Heise; John M. Tucker 2003-10-21 s.n. Humboldt 22 mi from Garberville along Alderpoint Rd; stop #2 116 Comment
  UC1196259  Ranunculus alismifolius Joseph P. Tracy 1912-7-31 3905 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  HSC81826  Ranunculus alismifolius var. hartwegii Thomas W. Nelson 1979-7-11 5009 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC18121  Ranunculus aquatilis var. diffusus D. E. Anderson 1965-6-1 3782 Humboldt Rd. to Brush Mtn., 0.25 mi. from Hwy. 299 Comment
  HSC26468  Ranunculus californicus var. cuneatus T. O. Osborne 1970-4-8 7 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  JEPS5884  Ranunculus flammula Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka 45 Comment
  UC552284  Ranunculus flammula Joseph P. Tracy 1934-7-30 13499 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  JEPS55018  Ranunculus flammula Milo S. Baker 1923-7-15 9 Humboldt near Hayes and M. Streets; Eureka swamps Comment
  UC1103010  Ranunculus flammula Joseph P. Tracy 1930-8-3 9149 Humboldt pond near Little Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  POM256479  Ranunculus flammula var. ovalis Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka. 46 Comment
  RSA246723  Ranunculus flammula var. ovalis Robert F. Thorne 1965-8-9 35322 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC26638  Ranunculus lobbii Thomas W. Nelson 1971-5-31 447 Humboldt Vernal pond Comment
  UC1196224  Ranunculus occidentalis Joseph P. Tracy 1920-5-18 5327 Humboldt 5 mi above Dyerville; Northern Coast Ranges, South Fork Eel River, Forest Lodge 60 Comment
  HSC99092  Ranunculus occidentalis var. occidentalis Cara Witte 2008-7-2 824 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  SEINET180820  Ranunculus occidentalis var. rattanii Bassett Maguire, R Maguire; C. B. Maguire 1934-6-9 15179 Humboldt Clam Beach 15 mi N of Eureka Comment
  UC1103014  Ranunculus parviflorus Joseph P. Tracy 1948-6-13 18033 Humboldt halfway between Bridgeville and Blocksburg (around a pool); Larrabee Creek 457 Comment
  HSC18174  Ranunculus pusillus J. P. Tracy 1903-5-24 1912 Humboldt Alder Point on Eel River 152 Comment
  UC1103009  Ranunculus pusillus Joseph P. Tracy 1948-6-13 18035 Humboldt halfway between Bridgeville and Blocksburg (pond on creek); Larrabee Creek 457 Comment
  HSC18109  Ranunculus repens var. repens S. R. Johnson 1965-3-28 33 Humboldt 1.0 mi. N of Luffenholtz Beach Comment
  HSC56212  Ranunculus uncinatus G. L. Clifton, Griswold 1979-8-2 12220 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC162791  Ranunculus uncinatus J. P. Tracy 1906-4-22 2416 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC44407  Ranunculus uncinatus R. York 1978-5-6 159 Humboldt Along Bluff Creek Rd. 610 Comment
  RSA34319  Raphanus sativus Doris K. Kildale 1926-5-7 1506 Humboldt Bucksport. Eureka. Comment
  RSA34322  Rhamnus californica Doris K. Kildale 1926-8-15 2511 Humboldt Willow Creek Flat Comment
  JEPS41986  Rhamnus californica subsp. californica W. L. Jepson 1936-8-12 17884 Humboldt Phillipsville South Fork Eel River Comment
  UC912384  Rhamnus californica subsp. occidentalis Herbert L. Mason 1932-7-21 7109 Humboldt on road to Arcata to Weaverville (e slope of Southfork Mountains); Southfork Mountains Comment
  JEPS41976  Rhamnus purshiana W. L. Jepson 1936-8-18 17942 Humboldt Wildcat Ridge, w Humboldt Co. Wildcat Ridge Comment
  RSA46720  Rhamnus purshiana Doris K. Kildale 1937-8-20 15337 Humboldt Wood Street, Eureka Comment
  RSA7813  Rhamnus purshiana Doris K. Kildale 1928-7-29 5925 Humboldt Mouth of Bear River at Capetown Comment
  UC18569  Rhamnus purshiana Harley P. Chandler May 1901 1173 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC7882  Rhododendron macrophyllum V. G. Vieira 1963-5-4 21 Humboldt Essex Pond Comment
  HSC91897  Rhododendron macrophyllum E. Mackey 1987-5-19 Humboldt Patrick's Point State Park Comment
  SDSU3418  Rhododendron macrophyllum D. F. Howe 1963-5-26 3552 Humboldt 3.2 miles east of Orick and Bald Hill road. 457 Comment
  UC22126  Rhododendron macrophyllum J. Burtt Davy 1899-6-23 5762 Humboldt Trinity Summit, Mud Springs Mud Springs; North Coast Ranges, Trinity Summit, Mud Springs 1524 Comment
  UC153960  Rhododendron occidentale Joseph P. Tracy 1909-10-10 3114 Humboldt 3 mi beyond French Camp, between Pine and Tuley French Camp; Northern Coast Ranges 609 Comment
  CAS-BOT-BC200386  Rhododendron occidentale var. paludosum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CDA21386  Rhododendron occidentale var. paludosum G. F. Hrusa, T. D. Wilfred, N. Kang 1992-5-4 9401 Humboldt North Coast Ranges; Stagecoach Hill on Kane Rd. above and immed. NW of Big Lagoon and SE of Stone Lagoon. 158 Comment
  HSC7893  Rhododendron occidentale var. paludosum D. E. Anderson 1961-9-30 1845 Humboldt Divide Lake Comment
  UC1198921  Ribes binominatum Joseph P. Tracy 1942-6-23 17251 Humboldt near Box Camp; Trinity Summit 1584 Comment
  CAS-BOT-BC92881  Ribes bracteosum M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka. Comment
  HSC20278  Ribes bracteosum D. E. Anderson 1965-5-8 3632 Humboldt 0.6mi W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  JEPS49272  Ribes bracteosum Mrs. M. H. Manning 1901-1 Humboldt near Hupa Comment
  RSA273318  Ribes bracteosum M. A. Baker 1977-4-23 174 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  UC161565  Ribes bracteosum Joseph P. Tracy 1911-6-4 3216 Humboldt 5 mi from coast; Northern Coast Region, Little River 121 Comment
  CAS-BOT-BC108911  Ribes divaricatum var. pubiflorum John Thomas Howell 1954-4-25 29158 Humboldt Dune hills, Little River. Comment
  SEINET200855 Image available Ribes inerme J. P. Tracy 1939-5-6 16281 Humboldt Lack Pond Trinity River Valley opposoite mouth of Willow Creek 152 Comment
  JEPS25431  Ribes inerme var. klamathense Joseph P. Tracy 1941-3-26 16813 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  CAS-BOT-BC176803  Ribes laxiflorum H. E. Parks; S. T. Parks 1937-6-4 24004 Humboldt Along Prairie Creek at Valley Green Comment
  HSC102024  Ribes lobbii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 925 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC65621  Ribes lobbii J. P. Smith, J. O. Sawyer 1973-5-12 6688 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS49355  Ribes lobbii W. L. Jepson 1902-7-16 2044 Humboldt Trinity Summit 2133 Comment
  HSC103201  Ribes marshallii Jade Paget-Seekins 2010-7-6 40 Humboldt On the western shore of Red Cap Lake, mostly to the right of the rocky slope. (Accessible via a few hour hike from the High Point trailhead outside of Forks of Salmon.) 1754 Comment
  HSC97215  Ribes marshallii M. Mesler 2007-6-25 765 Humboldt Trail to Mill Creek Lakes 1585 Comment
  CAS-BOT-BC206043  Ribes menziesii Doris K. Kildale 1926-4-4 1724 Humboldt Trinidad Comment
  HSC34640  Ribes menziesii J. M. Sauser 1975-4-9 2 Humboldt Old Arcata Rd., 2 mi. S of junction with Jacoby Creek Rd. Comment
  HSC44292  Ribes menziesii Barbara Kelly 1977-4-23 306 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  RSA0021765  Ribes menziesii Doris K. Kildale 1929-2-28 6949 Humboldt Humboldt State Teachers College, Arcata. Comment
  UC667069  Ribes roezlii Joseph P. Tracy 1933-3-5 10916 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  HSC45099  Ribes roezlii var. amictum R. Sutherland 1978-4-23 15 .23478 Humboldt 716 Comment
  UC1198948  Ribes roezlii var. amictum Joseph P. Tracy 1914-5-30 4487 Humboldt near Hydesville; Northern Coast Region of California, Van Duzen River 60 Comment
  CAS-BOT-BC198897  Ribes roezlii var. cruentum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC198901  Ribes roezlii var. cruentum Thomas W. Nelson; Jane P. Nelson 1977-5-30 3418 Humboldt Growing beside State Route 36 just west of Dinsmore at highway bridge over Van Duzen River 731 Comment
  RSA0024583  Ribes roezlii var. cruentum Jim R. Shevock 1972-3-26 1465 Humboldt Panther Ridge, W of Willow Creek. 305 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
  HSC33053  Ribes sanguineum Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1241 Humboldt Horse Mtn. area 1220 Comment
  HSC45232  Ribes sanguineum M. Alcasas 1978-6-3 115 Humboldt Titlow Hill Rd., 1.5 mi. from Hwy. 299 1463 Comment
  HSC55619  Ribes sanguineum Overton, Butler 1979-7-23 9536 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC1198913  Ribes sanguineum Joseph P. Tracy 1928-4-22 8411 Humboldt Willow Creek Canyon Northern Coast Ranges 762 Comment
  CAS-BOT-BC144692  Ribes sanguineum var. glutinosum Carl B. Wolf 1927-8-29 1191 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge-- Mt. Glen Comment
  UC902092  Ribes sanguineum var. glutinosum Joseph P. Tracy 1943-3-14 17408 Humboldt vicinity Carlotta 30 Comment
  RSA0018246  Ribes sanguineum var. sanguineum Thomas W. Nelson 1977-6-15 3426 Humboldt Along Forest Road 5N10 just north of junction with Road 6N08. 1372 Comment
  HSC100500  Romanzoffia sitchensis Carl C. Marshall Apr 1886 196 Humboldt Damp rocks, Jacoby Creek. Comment
  CAS-BOT-BC222678  Romanzoffia tracyi Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-18 2619 Humboldt North of Trinidad 30 Comment
  NY337230  Romanzoffia tracyi J. P. Tracy 1933-5-9 11008 Humboldt Vicinity of Trinidad 15.2 Comment
  UC1198278  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9666 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC44065  Rorippa curvisiliqua Thomas W. Nelson, Jane P. Nelson 1977-8-6 3701 Humboldt Above Alder Spring 1585 Comment
  HSC99388  Rorippa nasturtium-aquaticum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 37 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1199222  Rorippa nasturtium-aquaticum Joseph P. Tracy 1927-7-17 8280 Humboldt on lower western foothills Chaparral Mountain (Three Cabins); Northern Coast Ranges, western foothills Chaparral Mountain 457 Comment
  UC492261  Rorippa palustris H. E. Parks and Joseph P. Tracy 1931-5-17 9425 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River nr Willow Creek 152 Comment
  CAS-BOT-BC146478  Rosa gymnocarpa Ella Dales Cantelow 1936-5-17 1402 Humboldt 4 1/2 mi. E. of Orick Rd to Yreka Comment
  CAS-BOT-BC146488  Rosa gymnocarpa L. R. Abrams 1918-6-15 7116 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC146496  Rosa gymnocarpa Doris K. Kildale 1927-7-3 3644 Humboldt Willow Creek Flat 152 Comment
  UC1199037  Rosa gymnocarpa var. serpentina Joseph P. Tracy 1939-8-16 16404 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC146839  Rosa nutkana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  CAS-BOT-BC146842  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  OBI5837  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1.8 mi from Rohnerville on the road to Fortuna 30 Comment
  UC667035  Rosa pisocarpa Joseph P. Tracy 1933-8-30 13020 Humboldt Grouse Mt. 1432 Comment
  HSC102020  Rubus lasiococcus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 921 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  CAS-BOT-BC148385  Rubus leucodermis Doris K. Kildale 1927-5-13 3138 Humboldt Redwood Creek at Berry's 289 Comment
  HSC100636  Rubus leucodermis Carl C. Marshall May 1885 78 Humboldt Liscom's Hill. Comment
  BLMAR233  Rubus parviflorus Jennifer Anthony-Wheeler 1996-9-26 233 Humboldt King range, growing in moist shade along bearcrk between Nad & Wai campground 548 Comment
  HSC41325  Rubus parviflorus Brad Klipfel 1974-8-2 516 Humboldt Horse Mtn. Comment
  RSA1366  Rubus parviflorus E. R. Johnson 1929-08 1416 Humboldt Arcata Redwood Park. 76 Comment
  UC1193203  Rubus parviflorus G. W. Tourtillott 1950-8-30 31 Humboldt 1/4 mi e Beale Ranch; Quad. 29C4, e of Beale Ranch 457 Comment
  UC1541464  Rubus praecox H. E. Parks April 1935 5537 Humboldt Trinidad Comment
  HSC47500  Rubus spectabilis Sheila Logan 1978-4-10 26 Humboldt McKinleyville, foot of Hiller Rd at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  HSC96356  Rubus spectabilis Gordon Leppig 1998-3-25 729 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC32429  Rubus ursinus Linda M. Barker 1974-5-11 173 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  UCD17624  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 040 Humboldt California. Humboldt County: on left side of U.S. 101 going north, about 0.5 miles north of Rock Creek Crossing. Comment
  HSC56448  Rudbeckia klamathensis Griswold, Butler 1979-7-12 7201 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC38935  Rumex acetosella Linda M. Barker 1976-5-13 1483 Humboldt 3 mi. W of Arcata. Comment
  HSC55016  Rumex acetosella Overton, Butler 1979-7-31 11408 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC71747  Rumex acetosella M. A. Baker 1980-6-26 2449 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC421932  Rumex acetosella Kenneth Clark 1980-3-1 510 Humboldt Shelter Cove. Dead Man's Gulch. 51 Comment
  HSC17575  Rumex acetosella Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  HSC17578  Rumex acetosella Allan R. Marshall 1962-5-22 30 Humboldt Back of Wildlife Building, HSU campus 30 Comment
  HSC99462  Rumex acetosella K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 116 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS39913  Rumex obtusifolius W. L. Jepson 1932-8-2 16476 Humboldt Bull Creek Dyerville Comment
  UC55520  Rumex obtusifolius Joseph Burtt Davy 1899-7-30 6169 B Humboldt near Ferndale Comment
  CAS-BOT-BC433703  Rumex occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  HSC17604  Rumex persicarioides D. E. Anderson 1961-9-13 1812 Humboldt Trinidad Beach Comment
  UC296201  Ruppia maritima H. E. Parks 1757 Humboldt Little River Lagoon Comment
  UCD92330  Rytidosperma R. Tofsrud 1946-11-1 33 Humboldt Humboldt County. Comment
  UCD92343  Rytidosperma penicillatum Ray Evans 1956-7-19 s.n. Humboldt Bear River, 3 miles east of Capetown. Comment
  JEPS51070  Sagina procumbens W. L. Jepson 1921-8-7 9337 Humboldt Stone Lagoon Humboldt Coast, Stone Lagoon Comment
  CAS-BOT-BC132666  Salix A. T. Whittemore 1980-3-15 80 -007 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  LA208631  Salix exigua var. hindsiana Harold E. Parks; 1931-8-25 1061 Humboldt Blue Slide, Van Duzen River 90.0 Comment
  UC512027  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1331 Humboldt near bridge on Trinity Hwy. (in ... channel of Trinity R.) 152 Comment
  CAS-BOT-BC104099  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104106  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01332 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107728  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC107764  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1214 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  HSC40864  Salix hookeriana Linda M. Barker 1976-4-30 1415 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  JEPS13090  Salix hookeriana Joseph P. Tracy 1936-10-24 15202 Humboldt Fortuna 15 Comment
  POM362593  Salix hookeriana H. E. Parks 1931-08 1053 Humboldt Little River Lagoon. 0 Comment
  RSA183566  Salix hookeriana R. I. Bonn 1965-4-3 11 Humboldt Four miles west of Arcata on Lanphere Rd. Comment
  UC1196556  Salix hookeriana Joseph P. Tracy 1937-4-11 15261 Humboldt along Eel Rl Camp Grant (2-5 mi e of the South Fork); S. Fork Eel R., Camp Grant 45 Comment
  UC469127  Salix hookeriana Joseph P. Tracy 1931-4-4 9329 Humboldt sand dunes near Samoa; Northern Coast Region, on Humboldt Bay 6 Comment
  UC470421  Salix hookeriana Joseph P. Tracy 1931-9-19 9678 Humboldt Van Duzen R. at Alton; Northern Coast Ranges, , Van Duzen R. 30 Comment
  UC490461  Salix hookeriana Joseph P. Tracy 1932-5-10 9957 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490476  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10344 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UC492344  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1103 a Humboldt Little River Lagoon Trinidad Comment
  UC512082  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1223 Humboldt 1 mi n Samoa (pine barrens near the coast) Comment
  UC512094  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1215 Humboldt 1 mi n Samoa (pine barrens near coast) Comment
  UC519326  Salix hookeriana Joseph P. Tracy 1933-10-8 13089 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges 91 Comment
  JEPS14760  Salix laevigata Joseph P. Tracy 1932-7-31 10290 Humboldt along Eel River at mouth of Larrabee Creek; Northern Coast Ranges 30 Comment
  RSA5692  Salix laevigata H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers. S Fork of Eel River. Comment
  UC481801  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 267 Humboldt between Miranda and Meyers (Sylvandale Station, S. Fork Eel R.); Sylvandale Station, S. Fork Eel R. Comment
  UC481812  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 271 Humboldt between Miranda and Meyers (Sylvandale); S. Fork Eel R., Sylvandale Comment
  UCSB10844  Salix laevigata Bracelin, H. 1931-5-1 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  LA208815  Salix lasiandra Harold E. Parks; 1931-3-24 911 Humboldt Fortuna, on banks of Eel River 10.0 Comment
  LA208818  Salix lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 966 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  RSA0030805  Salix lasiandra H. E. Parks, Joseph P. Tracy 1931-5-17 0966 Humboldt Willow Creek at Trinity River. 150 Comment
  UC1196577  Salix lasiandra subsp. lasiandra J. P. Tracy 1901-3-31 995 Humboldt immediate vicinity Eureka 0 Comment
  UC1196586  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1929-10-20 8682 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC1196588  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-5-14 10064 Humboldt Scotia Bluffs North Coast Ranges, Scotia Bluffs 30 Comment
  UC481261  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-5-20 991 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  UC492483  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1932-5-12 1150 Humboldt near bridge at mouth of Maple Creek (Big Lagoon); Big Lagoon Comment
  CAS-BOT-BC128189  Salix lasiandra var. lasiandra Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  UCD111578  Salix lasiandra var. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  CAS-BOT-BC107577  Salix lasiolepis Joseph P. Tracy 1934-3-25 13167 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107587  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1321 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107647  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. on Trinity Highway 762 Comment
  JEPS12945  Salix lasiolepis Joseph P. Tracy 1929-10-20 8681 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 762 Comment
  LA208773  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-12 1239 Humboldt Van Duzen River at Blue Slide 91 Comment
  POM160285  Salix lasiolepis Joseph P. Tracy 1926-2-28 7373 Humboldt Trinity River Valley, near the S Fork. 183 Comment
  POM219249  Salix lasiolepis H. E. Parks, Susan T. Parks 1931-8-15 1079 Humboldt Blue Slide. Van Duzen River. 100 Comment
  POM219355  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  UC1196615  Salix lasiolepis Joseph P. Tracy 1933-5-19 12202 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC469406  Salix lasiolepis Joseph P. Tracy 1927-3-27 7867 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469439  Salix lasiolepis Joseph P. Tracy 1931-11-8 9753 Humboldt Blue Slide Van Duzen River 91 Comment
  UC470409  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC481181  Salix lasiolepis Harold E. Parks 1931-8-25 1059 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC490552  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC504025  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1319 Humboldt Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  UC504028  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1320 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506393  Salix lasiolepis Joseph P. Tracy 1932-6-19 10243 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  UC526714  Salix lasiolepis Joseph P. Tracy 1934-3-4 13142 Humboldt Miranda, South Fork of Eel River 121 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-BC107408  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3145 Humboldt Redwood Creek at Berry's 289 Comment
  HSC20058  Salix melanopsis H. E. Parks 1931-5-14 964 Humboldt Van Duzen River, between Alton and Carlotta 15 Comment
  HSC20060  Salix melanopsis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1237 Humboldt Van Duzen River at Blue Slide 91 Comment
  JEPS12971  Salix melanopsis Joseph P. Tracy 1931-9-19 9681 Humboldt Van Duzen River bar Alton; Northern Coast Region 30 Comment
  SBBG28829  Salix melanopsis H. E. Parks 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  SBBG57954  Salix melanopsis H. E. Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  UC1173616  Salix melanopsis Joseph P. Tracy 1937-8-3 15611 Humboldt near Blue Lake (along Mad R.); Mad R. 15 Comment
  UC469450  Salix melanopsis Joseph P. Tracy 1931-6-14 9580 Humboldt Van Duzen R., Alton Alton; Northern Coast Region, Van Duzen R., Alton 30 Comment
  UC481344  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC481829  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 284 Humboldt 6 mi. s. Alton (e. of Redwood Hwy.) Comment
  UC490561  Salix melanopsis Joseph P. Tracy 1932-5-1 9876 Humboldt vicinity of R. Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC511972  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1252 Humboldt Mad River at Engelhart gravel pit (2 mi. e. of Redwood Hwy. and above Blue Lake Rd.) Comment
  UC519373  Salix melanopsis Joseph P. Tracy 1933-5-20 12262 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  CAS-BOT-BC129248  Salix piperi Joseph P. Tracy 1937-8-12 15658 Humboldt Snow Camp, most gourn in and around meadow. 1402 Comment
  CAS-BOT-BC129211  Salix piperi Doris K. Kildale 1926-5-31 2050 Humboldt On road from Junction to Hopland Comment
  CAS-BOT-BC129131  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen River 450 Comment
  CAS-BOT-BC129152  Salix scouleriana Doris K. Kildale 1929-2-28 6947 Humboldt Arcata - hill back of State Teacher's College Comment
  HSC20083  Salix scouleriana W. K. Parks Jul 1933 Humboldt S Fork Mtn. Comment
  POM219695  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge. Van Duzen River. 450 Comment
  UC1173585  Salix scouleriana Joseph P. Tracy 1937-3-14 15232 Humboldt Redwood Creek at Berry's; North Coast Ranges, , Redwood Creek 274 Comment
  UC525975  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  BLMAR266  Salix sitchensis Jennifer Anthony-Wheeler 1999-6-16 266 Humboldt Headwaters Forest Reserve, growing along-side road N of borrow pit toward scar rd. 432 Comment
  CAS-BOT-BC128989  Salix sitchensis Joseph P. Tracy 1934-3-25 13168 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC38184  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-5 3282 Humboldt Along S fork of Martins Slough just upstream from Eureka Muni Golf Course Comment
  HSC59689  Salix sitchensis Marla J. Carollo 1979-5-4 61 Humboldt Clam Beach Lagoon, near Little River Beach, adjacent to Hwy. 101 Comment
  UC1196712  Salix sitchensis Joseph P. Tracy 1935-3-3 13716 Humboldt near mouth Mad R. 6 Comment
  UC1199054  Salix sitchensis Joseph P. Tracy 1938-7-31 16088 Humboldt head of Willow Creek (along Trinity Hwy.); Willow Creek Canyon, Willow Creek 762 Comment
  UC1713724  Salix sitchensis Joseph P. Tracy 1905-11-5 2398 Humboldt immediate vicinity of Eureka 0 Comment
  UC203992  Salix sitchensis Joseph P. Tracy 1918-4-13 4869 Humboldt Jacoby Creek Quarry; Northern Coast Ranges, Jacoby Creek Quarry 91 Comment
  UC469468  Salix sitchensis Joseph P. Tracy 1931-11-8 9748 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481276  Salix sitchensis Harold E. Parks 1931-5-28 1029 Humboldt Little River Lagoon Comment
  UC481381  Salix sitchensis Harold E. Parks 1931-3-26 906 Humboldt on Van Duzen R. Alton; Van Duzen R., Alton 15 Comment
  UC490534  Salix sitchensis Joseph P. Tracy 1932-7-13 10506 Humboldt wet meadow at Corral Prairie; Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  HSC20132  Salix tracyi J. P. Tracy 1933-4-9 10966 Humboldt Bridgeville, along Van Duzen River 229 Comment
  UC526720  Salix tracyi Joseph P. Tracy 1934-9-30 13678 Humboldt Bridgeville, along Van Duzen River 198 Comment
  RSA132831  Sambucus caerulea P. H. Raven, R. Snow 1958-7-20 s.n. Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  UC1239541  Sambucus mexicana Joseph P. Tracy 1933-8-22 12978 Humboldt Eureka; old garbage dump 6 Comment
  HSC56447  Sambucus nigra subsp. caerulea Griswold, Butler 1979-7-12 7197 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  RSA46896  Sambucus racemosa var. arborescens Doris K. Kildale 1927-3-22 2938 Humboldt N Fork of Elk River, Humboldt County Comment
  CAS-BOT-BC235124  Sambucus racemosa var. racemosa D. E. Breedlove 1962-6-8 3059 Humboldt U.S. Highway 101, 5 miles south of Orick 30 Comment
  HSC47490  Sambucus racemosa var. racemosa Sheila Logan 1978-4-9 13 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  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
  UC602561  Sambucus racemosa var. racemosa Joseph P. Tracy 1932-7-14 10570 Humboldt ridges e Corral Prairie; Trinity Summit 1676 Comment
  UC902070  Sambucus racemosa var. racemosa Joseph P. Tracy 1949-7-25 18399 Humboldt Trinidad 3 Comment
  UC183568  Sanicula crassicaulis Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3599 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  UC314592  Sanicula crassicaulis Joseph P. Tracy 1923-6-19 6292 Humboldt Northern Coast Ranges, Upper Mattole Valley Upper Mattole Valley; Northern Coast Ranges, Upper Mattole Valley 152 Comment
  HSC91934  Sanicula crassicaulis E. Mackey 1986-5-13 Humboldt Patrick's Point State Park, edge of forest at Palmer's Point Comment
  HSC95100  Sanicula crassicaulis Andrea Pickart 2002-6-30 131 Humboldt Lamphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  HSC55291  Sanicula tuberosa Terry Griswold, Butler 1979-7-10 6264 Humboldt Near Board Camp Mountain 1372 Comment
  UC642317  Sanicula tuberosa Joseph P. Tracy 1933-7-11 12688 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  HSC31438  Sarcodes sanguinea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5556 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  CAS-BOT-BC441184  Saxifraga mertensiana Doris K. Kildale 1927-3-20 2930 Humboldt Philipsville. South fork of Eel River Comment
  RSA91480  Schoenoplectus maritimus F. W. Peirson 1923-7-11 3660 Humboldt Flats north of Eureka. Comment
  UC1103646  Scirpus congdonii Joseph P. Tracy 1937-8-12 15638 Humboldt Snow Camp 1402 Comment
  RSA246886  Scirpus microcarpus Robert F. Thorne, Percy C. Everett 1965-8-9 35320 Humboldt Clam Beach County Park: along highway. 3 Comment
  RSA167233  Scrophularia californica var. californica Joseph P. Tracy 1950-6-8 18752 Humboldt Beach south of Cape Mendocino. Comment
  UC1713596  Scutellaria antirrhinoides Harold E. Parks and Joseph P. Tracy 1934-6-27 Humboldt Grouse Mountain 1432 Comment
  JEPS62896  Scutellaria californica Joseph P. Tracy 1937-7-19 15453 Humboldt Buck Mountain 914 Comment
  RSA445331  Scutellaria siphocampyloides Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  HSC59362  Sedum laxum subsp. heckneri M. A. Baker 1978-7-9 623 Humboldt Confluence of the Trinity River and Tish Tang A Tang Creek Comment
  HSC74192  Sedum laxum subsp. heckneri M. A. Baker 1980-7-23 3134 Humboldt Near Orleans Mtn. 1859 Comment
  HSC76354  Sedum laxum subsp. heckneri Denis Kearns 1981-6-24 32 Humboldt Near Cedar Camp 1219 Comment
  UC1198839  Sedum laxum subsp. heckneri Joseph P. Tracy 1933-8-30 13015 Humboldt Grouse Mountain Grouse Mountain (on rock ledge) 1371 Comment
Read comments
Aug 17 2011
  HSC57959  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-31 11659 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  JEPS48045  Sedum radiatum Joseph P. Tracy 1926-7-5 7726 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  UC1198841  Sedum radiatum Joseph P. Tracy 1927-5-15 8054 Humboldt Supply Creek near Hoopa Valley; Northern Coast Ranges, Supply Creek, nr Hoopa Valley 304 Comment
  JEPS25686  Sedum spathulifolium P. C. Hutchison 1961-5-22 2012 Humboldt 1.1 mi s Berry Summit (on hiway US 299, on the road to Horse Mountain); s of Berry Summit, road to Horse Mountain Comment
  HSC49097  Sedum spathulifolium var. pruinosum Patricia Shesgreen 1978-7-30 120 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  HSC59656  Sedum spathulifolium var. pruinosum Michael Dalke 1979-5-10 78 Humboldt Elk Head, 1/2 mi. W of Stagecoach Dr. at College Cove 30 Comment
  HSC71086  Sedum stenopetalum Thomas W. Nelson, Jane Nelson 1977-5-30 3405 Humboldt Large rock downstream from Anderson's Ford 640 Comment
  JEPS37085  Senecio glomeratus W. L. Jepson 1902-6 1935 Humboldt Korbel to Angel's Ranch Comment
  JEPS37418  Senecio glomeratus W. L. Jepson 1932-8-8 16534 Humboldt Dyerville Perrott Creek, Dyerville 304 Comment
  UC1223022  Senecio glomeratus Joseph P. Tracy 1950-9-10 19360 Humboldt 1 mi n Capetown; Bear River Ridge 304 Comment
  CAS-BOT-BC364017  Senecio integerrimus var. major Alice Eastwood; John Thomas Howell 1937-6-23 4840 Humboldt 9 miles from Kneeland on road to Yager Comment
  UC1199492  Senecio minimus Joseph P. Tracy 1934-8-31 Humboldt Kneeland Prairie 762 Comment
  UCD135609  Senecio minimus John M. Tucker 1948-9-4 1863 Humboldt Beck's Ranch, Hydesville. Comment
  HSC76415  Senecio triangularis Denis Kearns 1981-7-23 431 Humboldt Near Whiteys Peak. 1524 Comment
  HSC68086  Senecio triangularis J. P. Smith, Steve Selva 1970-6-30 4114 Humboldt Comment
  HSC34610  Senecio vulgaris A. Montalvo 1975-5-24 273 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  CAS-BOT-BC85837  Sequoia sempervirens Doris K. Kildale 1926-8-23 2557 Humboldt North Fork of Eel River Comment
  CAS-BOT-BC85838  Sequoia sempervirens Doris K. Kildale 1927-5-15 3160 Humboldt Petrolia Bridge Mattole River Comment
  RSA1501  Sequoia sempervirens E. R. Johnson 1929-08 1436 Humboldt Pacific Lumber Co., along the Eel River, Dyerville Comment
  RSA175208  Sequoia sempervirens Robert F. Thorne 1957-9-2 18996 Humboldt Burlington State Park, just S of Weott. Comment
  SDSU292  Sequoia sempervirens Wayne A. Bemis 1963-11-29 245 Humboldt 1289 D st Arcata. Empire series Sandstone, West slope. Ocean fog belt of North Coast. 55 Comment
  UC1184974  Sequoia sempervirens Huron H. Smith 1911-6-16 3824 Humboldt Comment
  SEINET5716898 Image available Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-1 s.n. Humboldt Along State Route 299 from Arcata to Redding; Demonstration Forest, Simpson Timber Company.; Arcata Comment
  JEPS12497  Sherardia arvensis W. L. Jepson 1934-5-7 Humboldt Buckeye Prairie; Bull Creek Comment
  JEPS12498  Sherardia arvensis W. L. Jepson 1902-6 1936 Humboldt above Korbel Comment
  UC168950  Sherardia arvensis Joseph P. Tracy 1899-5-27 214 Humboldt Eureka Northern Coast Region (on Russ Claim) 0 Comment
  UC602552  Sherardia arvensis Joseph P. Tracy 1937-6-20 15337 Humboldt 10 mi from mouth Bear River Comment
  UC673264  Sidalcea asprella Lincoln Constance, Reed C. Rollins 1942-5-12 2889 Humboldt Klamath River 12 mi n Weitchpec 121 Comment
  UC1222509  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19033 Humboldt on the Butter Valley Road 2 mi e Cameron Hill Junction (near Kneeland); e of Cameron Hill Jct, near Kneeland Comment
  UC18701  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  HSC16014  Sidalcea malviflora F. B. Plett 1963-5-15 46 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC58334  Sidalcea malviflora subsp. asprella Overton, Butler 1979-8-2 12637 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC35603  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2009 Humboldt French Camp, Bald Hills. Comment
  HSC23746  Sidalcea oregana Tim Baroni 1971-7-6 120 Humboldt 10 mi. S of Ferndale on Mattole Rd. Comment
  JEPS67257  Sidalcea oregana subsp. eximia Joseph P. Tracy 1917-9-1 4831 Humboldt Murphy meadow Northern Coast Range, , Murphy meadow (Bald Mountain) 1066 Comment
  JEPS67258  Sidalcea oregana subsp. eximia W. L. Jepson 1921-8-7 9324 Humboldt Dow's Prairie Comment
  UC146131  Sidalcea oregana subsp. eximia Joseph P. Tracy 1907-6-25 2578 Humboldt in valley of Elk River Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  UC902187  Sidalcea oregana subsp. eximia Joseph P. Tracy 1947-7 17822 Humboldt Box Camp Meadow , Box Camp Meadow (Trinity Summit) 1463 Comment
  UC902188  Sidalcea oregana subsp. eximia Joseph P. Tracy 1947-8-24 17898 Humboldt Box Camp Meadow , Box Camp Meadow (Trinity Summit) 1463 Comment
  HSC99084  Silene bernardina Cara Witte 2008-8-6 1014 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  POM286444  Silene californica Lyman Benson 1929-7-19 1659 Humboldt Mouth of Matole River. Comment
  UC668099  Silene californica Joseph P. Tracy 1938-7-7 16040 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC174881  Silene campanulata subsp. glandulosa Volney Rattan 1903-1-1 s.n. Humboldt Hoopa Valley Comment
  CHSC19501  Silene gallica W. D. Stevens 1967-7-22 53 Humboldt Above the dirt road from old Hwy 101 to the top of the north bank of the Mad River. Comment
  HSC102089  Silene grayi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 992 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1541453  Silene hookeri H. E. Parks and J. P. Tracy 1930-5-25 791 Humboldt Laribee Valley 792 Comment
  UC162886  Silene hookeri Harley P. Chandler June, 1901 1539 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC1223229  Silene hookeri Joseph P. Tracy 1950-6-23 18880 Humboldt nw slope of Buck Mountain , Burr Valley (Burr Valley Road, Burr Valley) 1066 Comment
  CAS-BOT-BC181229  Silene hookeri subsp. bolanderi H. E. Parks; J. P. Tracy 1930-5-25 0791 Humboldt Laribee Valley 792 Comment
  HSC4168  Silene laciniata subsp. californica C. B. Wolf 1927-8-29 1196 Humboldt 7 mi. S of Ferndale and Capetown, Bear River Ridge, Mt. Glen Comment
  HSC81656  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson 1980-7-13 6059 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  HSC95117  Silene laciniata subsp. californica Chris Lee 2002-4-27 23 Humboldt Willow Creek, Brannon Mtn. Rd., .5 mi. W of jct. with Hwy. 96 Comment
  RSA21205  Silene scouleri var. scouleri C. B. Wolf 1937-8-10 9094 Humboldt Big Lagoon, so. side, w. side of Redwood Highway 6 Comment
  UC1198796  Sisymbrium officinale Joseph P. Tracy 1932-7-17 10658 Humboldt Trinity Summit at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  UC1197799  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
  UC275554  Smilacina stellata Joseph P. Tracy 1924-9-7 Humboldt Table Bluff Northern Coast Ranges 182 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
  HSC21312  Solanum parishii D. E. Anderson 1965-6-1 3778 Humboldt Along Friday Ridge Rd. about 3 mi. NE of its Jct. with Titlow Hill Rd. 1067 Comment
  UC154016  Solanum physalifolium var. nitidibaccatum J. P. Tracy 1909-8-10 3074 Humboldt immediate vicinity of Eureka 0 Comment
  UC1222771  Solanum umbelliferum Joseph P. Tracy 1950-6-18 18851 Humboldt Briceland Comment
  UC154277  Solanum umbelliferum Mrs. M. H. Manning 1901-6-7 88 Humboldt near Hupa Comment
  RSA47108  Solanum umbelliferum Doris K. Kildale 1925-5-10 625 Humboldt Strongs Station Comment
  SEINET12274864  Solanum umbelliferum S. M. Tracy 1950-1 18851 Humboldt Briceland Comment
  HSC36596  Solidago elongata J. O. Sawyer, Thomas W. Nelson, Linda M. Barker 1975-9-4 1306 Humboldt Megwill Point on Elkhead, N of Trinidad in Trinidad State Beach 15 Comment
  HSC58093  Solidago elongata G. L. Clifton, Griswold 1979-8-1 12006 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC175192  Solidago elongata Joseph P. Tracy 1913-9-9 4397 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  UC630465  Solidago elongata H. E. and S. T. Parks September 1937 24081 Humboldt Spruce Cove , Spruce Cove (Trinidad) 64 Comment
  CAS-BOT-BC365669  Solidago spathulata Doris K. Kildale 1928-8-10 6263 Humboldt Samoa Peninsula - Humboldt Bay Comment
  RSA286358  Solidago spathulata R. F. Thorne 1974-7-29 45070 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  JEPS18742  Soliva sessilis Joseph P. Tracy 1936-7-3 14852 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  HSC35010  Soliva sessilis J. O. Sawyer 1975-5-20 2695 Humboldt 1445 Chester Ave., Sunnybrae Comment
  HSC26465  Sonchus asper T. O. Osborne 1970-7-18 24 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  HSC6220  Sonchus asper Paul Shields 1955-6-16 Humboldt HSC Campus Comment
  UCD136155  Sonchus oleraceus Linda M. Barker 1976-7-5 1644 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC235371  Spartina densiflora W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  HSC4234  Spergula arvensis D. E. Anderson 1961-9-13 1823 Humboldt Comment
  UCD99184  Spergula arvensis Collector unknown 1925-6-7 1613 Humboldt Willow Camp. Comment
  HSC90396  Spergularia macrotheca Jean Hanson 1980-8-28 118 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. Comment
  UC668080  Spergularia rubra Joseph P. Tracy 1936-6-3 14850 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC19754  Spiraea douglasii D. E. Anderson 1961-9-9 1793 Humboldt Along S shore of Big Lagoon Comment
  UC1199029  Spiraea douglasii Joseph P. Tracy 1924-7-13 6734 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  JEPS64512  Spiranthes romanzoffiana W. L. Jepson 1921-8-11 9412 Humboldt Big Lagoon Comment
  UC1196402  Spiranthes romanzoffiana Doris Kildale Aug 1925 Humboldt Waterdog Lake Trinity Summit 1889 Comment
  UC666996  Spiranthes romanzoffiana Joseph P. Tracy 1937-8-22 8341 Humboldt near High Prairie; Bald Mountain 1066 Comment
  HSC100151  Spirodela polyrhiza M. A. Ericksen 1979-5-29 308 Humboldt Northern-most of Clam Beach ponds Comment
  CHSC802  Stachys ajugoides var. rigida 1929-5-6 Humboldt Comment
  JEPS63050  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UC1602161  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UC180214  Stachys ajugoides var. rigida Joseph P. Tracy 1914-6-14 4512 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC577316  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC726345  Stachys ajugoides var. rigida A. A. Heller 1923-7-8 13769 Humboldt near Pepperwood Comment
  UCLA70846  Stachys ajugoides var. rigida Joseph P. Tracy 1934-7-18 13455 Humboldt Grouse Mountain North Coast Ranges 1615 Comment
  HSC12030  Stachys arvensis D. Santana 1970-11-2 113 Humboldt 14th and B St. Arcata Comment
  HSC89453  Stachys mexicana M. Roantree 1985-5-7 40 Humboldt SW side of Trinidad Head, along trail Comment
  UC1198344  Stellaria borealis subsp. sitchana Joseph P. Tracy 1949-6-25 18349 Humboldt Box Camp; Trinity Summit 1524 Comment
  SEINET11930940  Stellaria crispa J. P. Tracy 1950-1 19042 Humboldt Raccoon Creek, near mouth, 1 mi NE of Patterson's Ranch, Willow Creek vicinity Comment
  UC162629  Stellaria crispa Joseph P. Tracy 1911-7-5 3312 Humboldt near mouth of Willow Creek (tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  HSC58220  Stenanthium occidentale Walter Overton 1979-8-1 12360 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC76545  Stipa lemmonii Denis Kearns 1981-7-22 316 Humboldt Near Whiteys Peak. 1487 Comment
  JEPS118112  Streptanthus breweri Dean W. Taylor 2005-6-9 19339 Humboldt ridge dividing Swift Creek from Horse Creek, ca. 2 air miles SSE of Larabee Valley 853 Comment
  HSC44068  Streptanthus breweri Thomas W. Nelson, Jane P. Nelson 1977-7-1 3543 Humboldt Ridge N side of Bear Creek, 100 m W of FS Rd. 1S07 Comment
  UCD116417  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt south of airport, about 5 miles east of Kneeland. Comment
  UC492252  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1932-7-12 10457 Humboldt head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  JEPS54017  Streptanthus tortuosus var. suffrutescens Chesnut and Drew 1888-1 Humboldt Comment
  HSC57036  Streptopus amplexifolius Overton, Butler 1979-7-24 9671 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC54882  Swertia radiata G. L. Clifton, Griswold 1979-7-25 10883 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  JEPS12877  Symphoricarpos albus var. laevigatus W. L. Jepson 1932-7-28 16434 Humboldt Dyerville Comment
  CAS-BOT-BC269565  Symphoricarpos albus var. laevigatus E. A. McGregor 1921-8-6 s.n. Humboldt Requa and vicinity. 2 miles up Klamath River Comment
  HSC58035  Symphoricarpos mollis G. L. Clifton 1979-7-31 11870 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC602523  Symphoricarpos mollis Joseph P. Tracy 1936-8-8 15120 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1463 Comment
  CAS-BOT-BC99173  Symphyotrichum chilense Alice Eastwood 1923-8-14 12318 Humboldt Samoa Comment
  CAS-BOT-BC99006  Symphyotrichum eatonii Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC75277  Symphyotrichum hendersonii J. O. Sawyer, D. A. Thornburgh 1980-9-9 4078 Humboldt Mill Creek Lake and surrounding meadows Comment
  UC213323  Symphytum asperum Joseph P. Tracy June 1919 5181 Humboldt Northern Coast Region, Humboldt Bay, valley of Salmon Creek 30 Comment
  JEPS26388  Synthyris reniformis Joseph P. Tracy 1941-4-8 16810 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 609 Comment
  JEPS9930  Synthyris reniformis Lincoln Constance 1934-6-15 882 Humboldt South Fork Eel River (Summit of Grasshopper Peak); Bull Creek Region 975 Comment
  HSC26095  Synthyris reniformis Tim Baroni 1973-1-2 Humboldt 1.9 mi. above Angel Ranch on the road to Snow Camp 793 Comment
  CAS-BOT-BC376718  Tanacetum bipinnatum Lewis S. Rose 1972-7-5 72005 Humboldt Samoa 3 Comment
  HSC38341  Tanacetum bipinnatum Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  HSC78985  Tanacetum bipinnatum L. P. Janeway 1984-5-16 801 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 5 Comment
  UCSB15911  Tanacetum bipinnatum Breedlove, Dennis 1962-6-8 Humboldt Near coast on U.S. Highway 101, 3 miles south of Orick Comment
  RSA89773  Tanacetum camphoratum P. A. Munz 1954-7-25 19869 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  UC1409185  Tanacetum camphoratum Robert F. Thorne and P. Everett 1965-8-7 35224 Humboldt Somoa Peninsula 3 Comment
  SEINET11798896  Taraxacum laevigatum J. P. Tracy 1948-1 17973 Humboldt Trinity River at Willow Creek Comment
  HSC70325  Taraxacum officinale M. A. Baker 1980-6-8 1880 Humboldt Near Buck Flat. 1554 Comment
  HSC65900  Tauschia glauca M. A. Baker 1980-6-26 2396 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC85210  Taxus brevifolia Joseph P. Tracy 1924-9-7 6862 Humboldt Grizzly Creek on Van Duzen River 91 Comment
  UC463017  Taxus brevifolia E. B. Copeland 1931-8-18 Humboldt below Densmore; Van Duzen River Comment
  UC502916  Taxus brevifolia Joseph P. Tracy 1927-3-27 7866 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  HSC63225  Tellima grandiflora M. A. Baker 1979-5-6 483 Humboldt 2 km. S of Weitchpec Comment
  HSC79487  Tellima grandiflora Kenneth Clark 1980-3-23 536 Humboldt Along S Fork of Dead Man's Gulch 69 Comment
  JEPS49695  Tellima grandiflora Harley P. Chandler May 1901 1232 Humboldt Humboldt Bay; North Coast Range 121 Comment
  UC1196167  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1935-5-25 13825 Humboldt along head of Larrabee Creek Blocksburg 518 Comment
  UC1222745  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1950-7-25 18879 Humboldt Burr Valley Buck Mountain (nw slope of mt.) 1066 Comment
  HSC101439  Thelypteris nevadensis Cara M. Witte Aug 2009 1070 Humboldt Grouse Mountain. Forest Service Road 4N32, .25 mile south of intersection with 5N04 1466 Comment
  UC1225806  Thelypteris nevadensis Joseph P. Tracy 1948-9-5 18171 Humboldt Happy Camp Mt.; Trinity Summit Range 1219 Comment
  RSA259571  Thermopsis macrophylla var. agnina Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-15 2000 Humboldt Growing on Serpentine outcrop at Franch Camp, Bald Hills Comment
  UCD134111  Thuja plicata Jo Ann Olson; Gary R. Robbins 1969-4-27 36 Humboldt On Mattole Road, ca. 1 mile south of Ferndale. 152 Comment
  UCD67632  Thuja plicata D. Sanchez-Mata 1996-6-27 s.n. Humboldt Blue Lake. Mad River. Redwood forests on slopes. 175 Comment
  JEPS49704  Tiarella trifoliata var. unifoliata W. L. Jepson 1932-7-29 16441 Humboldt Weott Comment
  UC858903  Tiarella trifoliata var. unifoliata Elizabeth Parsons Hawver Jun 1905-June 1915 Humboldt Carlotta Comment
  CAS-BOT-BC436910  Tiarella trifoliata var. unifoliata W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River Comment
  CAS-BOT-BC436915  Tiarella trifoliata var. unifoliata C. C. Harris; S. K. Harris 1936-6-16 660 Humboldt Yager Road from Carlotta 152 Comment
  SDSU9571  Tiarella trifoliata var. unifoliata D. F. Howe 1959-8-5 2809 Humboldt Redwood Hwy - #101 alternate 5 miles N of Weott, Drexel Grove. Comment
  RSA12561  Tofieldia glutinosa subsp. occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  HSC73176  Tonella tenella M. A. Baker 1980-5-17 1249 Humboldt Near Le Perron Peak 1066 Comment
  UC169095  Tonella tenella Mrs. M. H. Manning Apr 1902 Humboldt Hupa Comment
  HSC34707  Torilis arvensis Thomas W. Nelson 1974-7-20 1698 Humboldt McKeown Ranch N of Dinsmore Comment
  UCR3543  Torilis arvensis David Whistler, H. M. Whistler 1964-7-29 640729- 3 Humboldt North Coast Range, US 101, [South Fork Eel River] across the street from Myers Flat Store 63 Comment
  HSC63227  Toxicodendron diversilobum M. A. Baker 1978-6-6 465 Humboldt Weitchpec Comment
  POM117573  Toxicodendron diversilobum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UCR3932  Toxicodendron diversilobum David Whistler, H. M. Whistler 1964-7-29 640729- 7 Humboldt North Coast, US Hwy 101, along bank of Eel River, 0.2 mi. north of Weott 85 Comment
  CAS-BOT-BC323056  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  RSA0001653  Tracyina rostrata Joseph P. Tracy 1916-6-20 4735 Humboldt Southeastern Humboldt county. Alder Point on Eal River. 305 Comment
  HSC62890  Tradescantia ohiensis J. M. DiTomaso 1979-5-20 1056 Humboldt 0.3 mi. N of Trinidad on Stagecoach Rd. Comment
  JEPS5769  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1937-7-25 15564 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1225747  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1948-9-5 18169 Humboldt Trinity Summit Range, at Happy Camp Mountain Happy Camp Mountain; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC98856  Triantha occidentalis subsp. occidentalis Cara Witte 2008-7-30 973 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  HSC81700  Trichostema laxum Thomas W. Nelson, Jane P. Nelson 1979-9-25 5066 Humboldt Along SR 36 3 mi. W of Dinsmore Comment
  HSC17941  Trientalis latifolia John A. Dubois 1962-5-12 10 Humboldt 20 mi. E of Arcata Comment
  HSC89588  Trientalis latifolia M. Roantree 1985-5-24 56 Humboldt NW side of Trinidad Head, along trail Comment
  JEPS43093  Trientalis latifolia Lincoln Constance 1934-6-1 775 Humboldt Mouth of Bull Creek, Bull Creek Road, between Dyerville Bridge and Bull Creek, South Fork Eel River Bull Creek; Bull Creek Region, South Fork Eel River 45 Comment
  UC1197235  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1921-6-12 5820 Humboldt Kneeland Prairoe Northern Coast Ranges 762 Comment
  UC16496  Trifolium albopurpureum var. dichotomum Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5342 Humboldt near Harris Comment
  UC1103435  Trifolium barbigerum J. P. Tracy 1900-6-5 847 Humboldt immediate vicinity Eureka Comment
  UC302113  Trifolium bifidum var. bifidum Joseph P. Tracy 1926-5-2 7419 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1223499  Trifolium bifidum var. decipiens Joseph P. Tracy 1943-5-23 17427 Humboldt e Redwood Creek (at Berry's, on Trinity Hwy); North Coast Ranges 274 Comment
  UC1541600  Trifolium ciliolatum Harold E. Parks May 1923 1497 Humboldt Eel River, McCanns Comment
  UC1103442  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1916-4-30 4684 Humboldt Bucksport Northern Coast Ranges, Eureka 60 Comment
  UC1197490  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1932-6-26 10273 Humboldt Fort Baker Ranch Northern Coast Ranges 762 Comment
  CDA4294  Trifolium dubium G. D. Barbe, T. C. Fuller 1974-6-17 1837 Humboldt Sail Court, Shelter Cove. 0 Comment
  HSC15117  Trifolium dubium A. E. Inman 1982-5-25 Humboldt N bank of Mad River, 200 yrds. W of Lindsey Creek Comment
  UCD108864  Trifolium dubium A. H. Murphy 1947-4-25 s.n. Humboldt 2 miles N of Blocksburg, W. Smith Ranch. Comment
  UC1602084  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-8 8728 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC16712  Trifolium eriocephalum var. eriocephalum J. Burtt Davy 1899-6-7 5385 Humboldt near Harris; Northern Coast Ranges Comment
  RSA168898  Trifolium fragiferum Joseph P. Tracy 1933-8-22 12986 Humboldt Not seen elsewhere, moist field near wet slough 1 miles W of Loleta. Comment
  HSC15118  Trifolium fucatum R. Spellenberg 1964-6-15 414 Humboldt 5 mi. E of Redwood Creek on Hwy. 299 Comment
  RSA168896  Trifolium fucatum var. fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge, one mil east of Cape Mendocino. 152 Comment
  RSA168897  Trifolium fucatum var. fucatum Joseph P. Tracy 1938-6-17 15950 Humboldt Cape Mendocino, near ocean shore, south of point of the Cape. Comment
  SEINET12147991  Trifolium fucatum var. virescens J. P. Tracy 1938-1 15950 Humboldt S side of Cape Ridge. Cape Mendocino, s of point of the cape 30 Comment
  HSC38085  Trifolium gracilentum Thomas W. Nelson, James Nelson 1976-5-30 2606 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC162777  Trifolium gracilentum J. P. Tracy 1900-6-5 844 Humboldt immediate vicinity Eureka (Bucksport) 0 Comment
  UC1197190  Trifolium gracilentum Joseph P. Tracy 1911-5-30 3194 Humboldt Bucksport Northern Coast Region, Humboldt Bay Comment
  HSC73705  Trifolium longipes M. A. Baker 1980-7-22 3116 Humboldt Near Grogan Hole. 1676 Comment
  UCSB30613  Trifolium longipes subsp. elmeri David Edwards 1974-8-1 76 Humboldt collected 2.50 mi SW, along the N-side of a dirt road, 50 ft N of Mad River, at 45 degree bend river, 0.50 mi S of Putter Creek Korbel - Mad River, Putter Creek and Korbel 27 Comment
  HSC98664  Trifolium longipes subsp. oreganum Cara Witte 2008-7-2 821 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  HSC15147  Trifolium microdon J. W. Johnson 1962-5-10 1332 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  UC1223528  Trifolium variegatum var. variegatum Joseph P. Tracy 1937-7-19 15460 Humboldt lower foothills nw slope; Buck Mtn 914 Comment
  UC594251  Trifolium variegatum var. variegatum S. K. Harris, J. P. Tracy and H. S. Yates 1936-6-17 3426 Humboldt nw slopes nw slopes of Buck Mtn 822 Comment
  HSC63279  Trifolium willdenovii M. A. Baker 1979-5-6 475 Humboldt Weitchpec. Comment
  UC1197534  Trifolium willdenovii J. P. Tracy 1901-6-23 1169 Humboldt Eureka vicinity 0 Comment
  HSC15190  Trifolium wormskioldii R. E. Hafenfeld 1965-5-9 24 Humboldt Jct. County Rd. and Gold Bluff Beach Rd. Comment
  HSC33757  Trifolium wormskioldii Ron Ralston 1975-5-24 79 Humboldt Samoa Dunes off Samoa Blvd., across from boat landing Comment
  HSC15189  Trifolium wormskioldii S. J. Moore 1965-5-10 33 Humboldt Near mouth of Little River Comment
  CHSC68791  Triglochin maritima Vernon Oswald 1997-6-5 8531 Humboldt Arcata Oxidation Ponds on South G St., south of Hwy. 255. 6 Comment
  HSC36439  Triglochin maritima John Rehling 1974-7-8 8 Humboldt Big Lagoon Bog Comment
  UC527822  Triglochin maritima Ira L. Wiggins 1932-6-18 5868 Humboldt at mouth of Little River Little River Comment
  UC667134  Trillium angustipetalum Joseph P. Tracy 1928-4-29 8418 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CHSC23038  Trillium ovatum E. K. Daniels 1964-4-18 33 Humboldt Prairie Creek State Park; 1 mi from Pacific Ocean beach on trail towards Park Headquarters. 30 Comment
  POM117306  Trillium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1541275  Trillium ovatum W. K. Parks July 1933 Humboldt S. Fork Mountain Comment
  SDSU11973  Trillium ovatum Leslie Hickson 1990-4-15 15 IV90F Humboldt Oak Street 0.5 miles north of Freshwater. Off the right side of the road under the Redwood tees. Eureka, Ca. Comment
  SEINET3888797  Trillium ovatum S. R. Johnson 1965-3-19 15 Humboldt 2 miles north of Luffenholtz Beach.; 0 Comment
  UC1197829  Trillium ovatum Joseph P. Tracy 1918-4-21 4883 Humboldt near Newell's old camp, on old Kneeland Prairie rd. Newell's old camp; Northern Coast Ranges, around Humboldt Bay 304 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
  CDA41904  Triphysaria pusilla April A. Allard & Gregory D. O Connell 2005-6-1 8 Humboldt Coldspring Camp, 7.4 miles south of Hwy. 299 on NF1. Comment
  HSC102548  Trisetum canescens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1536 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  RSA129125  Trisetum canescens H. S. Yates 1936-6-17 5704 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC1056012  Trisetum canescens W. L. Colwell 1954-10-12 10 Humboldt 4 mi ne Blocksburg 1127 Comment
  CAS-BOT-BC193514  Trisetum cernuum Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  HSC13121  Trisetum cernuum R. H. Berg 1963-5-1 60 Humboldt Arcata, H.S.U. campus. Comment
  HSC13423  Trisetum cernuum T. F. Newman 1966-5-1 6645 Humboldt H.S.U Campus Comment
  UC922029  Trisetum cernuum Joseph P. Tracy 1940-8-11 16695 Humboldt Streambank at Raccoon Creek; Trinity River Valley, near Willow Creek 152 Comment
  HSC79549  Triteleia laxa Kenneth Clark 1980-6-14 667 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  RSA173982  Umbellularia californica R. F. Thorne 1957-9-2 19001 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC1223044  Uropappus lindleyi Joseph P. Tracy 1947-5-10 17676 Humboldt near Briceland Comment
  UC1239527  Uropappus lindleyi Joseph P. Tracy 1927-5-8 7973 Humboldt grassy slopes facing South Fork Eel Rivar (Phillipsville); Northern Coast Ranges, South Fork Eel River, Phillipsville 121 Comment
  UC672857  Urtica dioica subsp. gracilis Joseph P. Tracy 1927-3-6 7837 Humboldt Elk River 30 Comment
  UCD170579  Urtica dioica subsp. gracilis Gordon Leppig 1998-4-13 736 Humboldt Arcata, Anvick Rd. 12 Comment
  POM106056  Urtica dioica subsp. holosericea Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA46868  Vaccinium cespitosum Doris K. Kildale 1927-7-10 3725 Humboldt Gans Prairie, Bald Hills. Comment
  UC562490  Vaccinium membranaceum Joseph P. Tracy 1936-8-7 15096 Humboldt head of Little Hors-Linto Creek Trinity Summit, Little Hors-Linto Creek 1371 Comment
  CAS-BOT-BC199308  Vaccinium ovatum Doris K. Kildale 1928-5-19 5203 Humboldt Chalk Mountain Comment
  HSC7917  Vaccinium ovatum D. E. Anderson 1961-9-23 1832 Humboldt 2.3 mi. S of Kneeland corner Comment
  RSA22543  Vaccinium ovatum H. E. Parks, S. T. Parks, C. R. Parks 1937-04 5638 Humboldt Spruce Cove, Trinidad. Comment
  RSA2925  Vaccinium ovatum C. B. Wolf 1931-8-29 1240 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  RSA46850  Vaccinium ovatum Doris K. Kildale 1927-5-7 3115 Humboldt Elk Ridge near Blacksburg. Comment
  UC719767  Vaccinium ovatum Rogers McVaugh 1941-8-3 6218 Humboldt 1.25 mi s Headquarters Patrick Point State Park Comment
  HSC48516  Vaccinium parvifolium Brad Klipfel 1974-9-17 581 Humboldt Horse Mountain area Comment
  UC1197765  Vaccinium parvifolium Joseph P. Tracy 1922-5-21 6051 Humboldt Fieldbrook, Northern Coast Ranges 60 Comment
  HSC32256  Vaccinium uliginosum J. O. Sawyer 1970-6-24 2286 Humboldt Near Waterdog Lakes 1860 Comment
  UC1220378  Valeriana californica Joseph T. Gregory 1935-7-30 865 Humboldt Salmon Summit 2103 Comment
  HSC98815  Vancouveria hexandra Cara Witte 2008-7-7 839 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  HSC99654  Vancouveria hexandra Overton, Butler 1979-7-24 9673 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1196345  Vancouveria hexandra Joseph P. Tracy 1937-7-24 15535 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  UC556336  Vancouveria planipetala Mrs. Emanuel Fritz 1935-1 Humboldt along Redwood Highway between Miranda and Dyerville Comment
  UC120019  Velezia rigida Chandler Humboldt Humboldt Bay Comment
  SEINET3992207  Veratrum insolitum Unknown 1948-8-15 18120 Humboldt On ridge 2 mi E. of Grove's Prarie 1524 Comment
  HSC61771  Verbena lasiostachys Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan. 137 Comment
  HSC12549  Verbena menthifolia C. Kline 1970-10-28 47 Humboldt North Bank Rd., 3 mi. W of Blue Lake, Mad River gravel bottoms Comment
  HSC69633  Veronica americana R. Kalal 1980-6-1 26 Humboldt 0.25 mi. N of Hwy. 299, at Essex turnoff 15 Comment
  HSC28231  Veronica scutellata John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  HSC99632  Veronica serpyllifolia subsp. humifusa G. L. Clifton, Terry Griswold 1979-7-25 10866 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC147903  Veronica serpyllifolia subsp. humifusa J. P. Tracy 1900-5-22 797 Humboldt immediate vicinity of Eureka 0 Comment
  HSC38088  Vicia americana var. americana Thomas W. Nelson, James Nelson 1976-5-30 2609 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC33398  Vicia americana var. americana W. C. Blasdale 1896-6-7 Humboldt Graham's Comment
  HSC15269  Vicia gigantea C. O. Baker 1962-5-7 33 Humboldt 2 mi. S of Trinidad along Hwy. 101 15 Comment
  UC162859  Vicia hirsuta J. P. Tracy 1906-6-29 2513 Humboldt immediate vicinity Eureka 0 Comment
  HSC71618  Vicia hirsuta J. P. Smith 1973-5-26 6812 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC90813  Vicia sativa subsp. nigra Gail Newton 1982-5-5 2531 Humboldt Elk River Wildlife Area, 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
  RSA755060  Vicia sativa subsp. nigra Robert F. Thorne, Percy C. Everett 1965-8-8 35241 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  RSA8438  Vicia villosa I. L. Wiggins 1932-7-7 5880 Humboldt Near Samoa, on the landward side of the sand dunes. Comment
  HSC89689  Vicia villosa subsp. varia Robin Bencie, James Jones, Rich Dwerlkotte 1989-4-28 15 Humboldt Along Hwy. 299, near Korbel, 7.5 mi. E of Hwy. 101 122 Comment
  HSC89999  Vicia villosa subsp. villosa Leonel Arguello 1989-6-24 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, end of the Fernstrom-Root trail Comment
  HSC21767  Viola adunca A. Sylvester, D. Sutherland, R. Spellenberg 1966-3-26 1354 Humboldt Beachcross, 5 mi. W of Ferndale Comment
  HSC73697  Viola bakeri M. A. Baker 1980-7-19 2998 Humboldt Near Bret Hole. 1814 Comment
  RSA0006435  Viola californica Milo S. Baker 1946-6-14 11492 Humboldt South Fork Mt., on forest road in open spots in Fir forest, near Miller Spring and beyond. 1524 Comment
  UC302051  Viola cuneata Joseph P. Tracy 1926-6-20 7615 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC71790  Viola glabella Gail Newton 1980-6-16 178 Humboldt Near Monks Camp. 1097 Comment
  UCR138885  Viola glabella E. Bower, S. Marubayashi, E. Perry 1997-5-10 53 Humboldt Titlow Hill Road, 1.5 mi past intersection with Hwy 299 975 Comment
  CAS-BOT-BC536496  Viola glabella A. M. Vollmer; L. Beane 1951-6-8 134 Humboldt Grizzly Camp, State Hwy 36 Comment
  RSA218475  Viola glabella N. H. Russell 1960-6-9 60 -24 Humboldt Near Weott and Williams Grove, by Hwy 101. Comment
  HSC44774  Viola hallii Thomas W. Nelson, Jane Nelson 1977-6-19 3498 Humboldt Along the old trail above Alder Springs 1555 Comment
  HSC99353  Viola macloskeyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 2 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS50250  Viola macloskeyi Hilda W. Grinnell 1932-7-19 30 Humboldt McKay Camp; South Fork Mountain, McKay Camp 1676 Comment
  HSC81588  Viola ocellata Thomas W. Nelson, Jane P. Nelson 1980-5-25 5263 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  JEPS50263  Viola palustris Joseph P. Tracy 1923-5-31 6242 Humboldt Northern Coast Ranges, Eurkea Eurkea; Northern Coast Ranges, Eurkea 0 Comment
  RSA239691  Viola palustris Larry E. DeBuhr 1973-4-23 992 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  UC1222514  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1950-4-20 18607 Humboldt opposite Buck Mountain (Along Van Duzen River, Dinsmore's); Dinsmore's, Van Duzen River 762 Comment
  UCR45417  Viola praemorsa subsp. praemorsa Pearson, Anderson, Flinn 1986-4-19 210 Humboldt Horse Mountain; 3 miles up Titlow Hill Rd. off Hwy 299 1434 Comment
  HSC71831  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1980-6-27 5959 Humboldt Saddle E of Mt. Lassic 1677 Comment
  HSC49693  Viola sempervirens J. O. Sawyer 1977-4-23 2842 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC38828  Viola sempervirens J. P. Smith, J. O. Sawyer 1973-5-12 6708 Humboldt 10.1 mi. from Hwy. 96 on Big Hill Rd. 1372 Comment
  HSC59449  Viola sempervirens Kenneth Clark 1979-3-31 2 Humboldt 0.7 mi. E of the end of Granite Ave., Arcata 46 Comment
  CAS-BOT-BC203049  Vitis californica Doris K. Kildale 1928-6-17 5236 Humboldt Miranda, south fork of Eel River Comment
  CAS-BOT-BC203051  Vitis californica Doris K. Kildale 1926-7-25 2431 Humboldt Briceland Bridge 1/2 mi. west of Garberville Comment
  UC249594  Vitis californica Joseph P. Tracy 1922-9-3 6109 Humboldt Klamath River at Bluff Creek Bluff Creek; Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  HSC9829  Vulpia bromoides R. D. Modafferi 1965-5-13 73 Humboldt 1.4 mi. N of Trinidad on Trinity St. 305 Comment
  UCD93706  Vulpia microstachys H. S. Yates 1936-6-17 5712 Humboldt near Burr Valley. 914 Comment
  UC181223  Vulpia microstachys var. ciliata Joseph P. Tracy 1913-6-18 4194 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1145196  Vulpia microstachys var. pauciflora Joseph P. Tracy 1939-4-29 16247 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  SEINET7295258 Image available Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-1 14961 Humboldt Burr VAlley; on northwest slope of Buck Mountain Comment
  UCD94718  Vulpia myuros A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3456 Humboldt 2 miles north of Orleans. Klamath River. Comment
  CAS-BOT-BC184731  Vulpia myuros subsp. megalura Joseph P. Tracy 1933-6-13 12598 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  UC38479  Vulpia myuros var. hirsuta Harley P. Chandler May 1901 1120 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  HSC20447  Whipplea modesta J. W. Johnson 1962-4-22 1280 Humboldt Willow Creek along the Hwy. on the canyon slope W of town Comment
  HSC70379  Whipplea modesta M. A. Baker 1980-6-7 1796 Humboldt Near Brush Mtn. 287 Comment
  HSC71672  Whipplea modesta M. A. Baker 1980-6-26 2384 Humboldt Near Sims Creek 610 Comment
  HSC98363  Whipplea modesta T. Jimerson, J. Pageau 1979-6-13 545 Humboldt Near Onion Lake, close to the town of Orleans. 549 Comment
  UCSB11490  Whipplea modesta Dearing, Hugh; Dearing, Margaret 1933-5-16 Humboldt near Weott Comment
  CAS-BOT-BC382923  Wyethia angustifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC6317  Wyethia angustifolia D. E. Anderson 1963-5-25 2484 Humboldt 2-3 mi. N of Capetown Comment
  HSC98077  Wyethia angustifolia Cara Witte 2007-7-11 485 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  HSC100451  Wyethia angustifolia Carl C. Marshall Jul 1886 261 Humboldt Coast Range. Comment
  UC668191  Xanthium spinosum Joseph P. Tracy 1938-10-30 16174 Humboldt Holmes Flat 60 Comment
  CAS-BOT-BC382123  Xanthium strumarium Doris K. Kildale 1926-8-8 2467 Humboldt mouth of Bull Creek Comment
  HSC37690  Xanthium strumarium R. Sutherland 1976-8-13 31 .13876 Humboldt In mouth of Redwood Creek at South Fork of Eel River. 88 Comment
  UC30055  Xerophyllum tenax Joseph Burtt Davy 1899-6-19 5630 Humboldt Hupa Mountain Comment
  UC154242  Yabea microcarpa Joseph P. Tracy 1906-5-13 2454 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  HSC12700  Zeltnera muehlenbergii Jana Kattenhorn 1970-10-31 159 Humboldt Scotia Bluffs, N bank of Eel River Comment
  HSC25957  Zeltnera muehlenbergii Thomas W. Nelson 1970-10-31 285 Humboldt Eel River near the N end of the Scotia Bluff Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
0.17 processing seconds