Search Results — 2000 specimen records retrieved (1365 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
  CAS-BOT-BC77928  Abies G. A. Coleman 1901-7-26 s.n. Humboldt Near Acorn Comment
  CAS-BOT-BC77965  Abies concolor Doris K. Kildale 1926-9-5 2612 Humboldt Lasseck's Peaks, top of ridge at Goat Camp 1661 Comment
  HSC74318  Abies concolor Gail Newton 1980-7-20 1602 Humboldt Near Bell Swamps 1463 Comment
  CDA19040  Abies grandis George Loughner 2000-10-6 PDR 023915 Humboldt North Coast Ranges; Ridge E of Blue Lake. 0 Comment
  SEINET11305271  Abies grandis W. D. Billings 1940-6-28 1357 Humboldt 1/4 mi. N of Trinidad Comment
  HSC12834  Abies magnifica Thomas W. Nelson, Wilbur Peterson 1970-12-2 296 Humboldt HSC Campus, W side of tennis court Comment
  UC1229745  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Horse Trail Ridge Six Rivers National Forest, Horse Trail Ridge (sw slope) 1828 Comment
  BLMAR72  Abronia latifolia Jennifer Anthony-Wheeler 1994-5-18 72 Humboldt Samoa/manilla dunes, growing throughout dunes 6 Comment
  CAS-BOT-BC383850  Abronia latifolia Ira L. Wiggins 1930-7-7 4672 Humboldt Near Samoa Comment
  SD42285  Abronia latifolia Carl B. Wolf 1937-9-9 3064 Humboldt Coast, 2 miles south of Cape Mendocino 6 Comment
  RSA0025093  Abronia latifolia P. A. Munz 1954-7-25 19867 Humboldt Humboldt Lighthouse south of Samoa. Comment
  RSA0025872  Abronia umbellata M. B. Dunkle 1936-8-18 4821 Humboldt Moonstone Beach. Comment
  UC1360497  Acaena novae-zelandiae D. W. Cooper 1966-10-10 Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Hwy. 101. Comment
  RSA186842  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile NW of Fieldbrook Comment
  CAS-BOT-BC330539  Acer circinatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC330565  Acer circinatum W. R. Dudley 1899-6-21 s.n. Humboldt Englewood Creek, Eel River Comment
  HSC98921  Acer glabrum var. torreyi Cara Witte 2007-6-5 211 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  HSC4562  Achillea millefolium Lincoln Constance 1934-5-29 716 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  JEPS37082  Achillea millefolium Joseph P. Tracy 1930-9-28 9199 Humboldt Big Lagoon 3 Comment
  HSC12754  Achillea millefolium M. J. Athey 1970-12-5 26 Humboldt Along old road to Trinidad Head, Trinidad Comment
  UC419037  Achlys californica H. E. Parks May 1930 752 Humboldt along Van Duzen R. Van Duzen R. Comment
  CAS-BOT-BC400020  Achlys triphylla Doris K. Kildale 1928-5-19 5158 Humboldt Chalk Mountain Comment
  SEINET12094127  Achlys triphylla F. H. Utech 1988-1 88 -275 Humboldt 14 mi W of Bridgeville on CA 36, Van Duzen County Park along Van Duzen River 50 Comment
  SDSU13751  Achlys triphylla subsp. triphylla D. F. Howe 1969-6-4 4629 Humboldt 14.6 miles east of Alton on #36. 91 Comment
  UC180895  Achnatherum lemmonii Joseph P. Tracy 1913-6-20 4246 Humboldt near summit between Van Duzen River and Mad River; Northern Coast Ranges, Van Duzen River, , Dinsmore' 1066 Comment
  UC187245  Achnatherum lemmonii Joseph P. Tracy Jul 27 1908-Jul 30 1908 2707 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC526760  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-12 10446 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  SDSU4308  Acmispon parviflorus D. F. Howe 1962-5-22 3307 Humboldt 0.7 miles east of Orick on Bald Mt. road. 396 Comment
  UC902107  Aconitum columbianum Joseph P. Tracy 1949-8-11 18459 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC412600  Aconogonon alaskanum Volney Rattan 1883-6-18 s.n. Humboldt Near the summit between Pilot Creek and the Trinity River Comment
  HSC53838  Aconogonon phytolaccifolium Griswold, Butler 1979-7-10 6289 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC55739  Actaea rubra G. L. Clifton, Griswold 1979-7-26 10241 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC56217  Actaea rubra G. L. Clifton, Griswold 1979-8-2 12233 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1196185  Actaea rubra Joseph P. Tracy 1937-7-2 15410 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC98889  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  UCD137170  Adiantum aleuticum Lincoln Constance 1934-6-1 776 Humboldt Bull Creek Region, South Fork Eel River. Comment
  UC197911  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  UC811115  Adiantum jordanii George Neville Jones 1936-3-22 8662 Humboldt s fork Eel River near Garberville Comment
  HSC43842  Aesculus californica Maralyn O'Meara 1974-5-18 498 Humboldt Fisher Rd. near Carlotta Comment
  UC709442  Aesculus californica Joseph P. Tracy 1941-6-15 16014 Humboldt Mattole Valley Northern Coast Ranges (hillside near Honeydew bridge) 152 Comment
  HSC102183  Agastache urticifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1097 Humboldt Patterson Meadows 1555 Comment
  HSC5642  Ageratina occidentalis J. P. Tracy 1922-7-15 6101 Humboldt Along Mad River, near Blue Lake Comment
  UC127705  Ageratina occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5884 Humboldt Francis Range North-Western California Comment
  HSC4597  Agoseris grandiflora John Johnson 1962-8-17 1004 Humboldt Samoa Peninsula; Lanpher Ranch Comment
  CAS-BOT-BC29626  Agoseris grandiflora var. grandiflora LeRoy Abrams 1922-6-25 8237 Humboldt 2 mi S of Fortuna Comment
  UC1199478  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7019 E Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  POM126129  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6283 Humboldt Bear Ridge Ridge 305 Comment
  UC204708  Agrostis alba Joseph P. Tracy 1918-7-5 5018 Humboldt moist field Northern Coast Ranges, White Thorn Valley 304 Comment
  POM247142  Agrostis exarata H. E. Parks 1935-06 5607 Humboldt Spruce Cove, Trinidad. Comment
  RSA53834  Agrostis exarata Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  CAS-BOT-BC139694  Agrostis gigantea Joseph P. Tracy 1932-8-21 10363 Humboldt North Coast Ranges. Three Cabins. On lower western foothills of Chaparral Mountain. 457 Comment
  BLMAR533  Agrostis hallii Jennifer Wheeler 2009-6-23 533 Humboldt King range, On King Peak road Comment
  UC526874  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8904 Humboldt near McKay Camp (edge of springy places); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC526875  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8995 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (wet meadow) 1676 Comment
  UC1103522  Agrostis pallens Joseph P. Tracy 1932-7-14 10551 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UCD53520  Agrostis stolonifera Lee Berry 1956-6-20 s.n. Humboldt May Ranch, Bridgeville. Comment
  CAS-BOT-BC138572  Agrostis variabilis Joseph P. Tracy 1930-7-16 8948 Humboldt Northern Coast Ranges. South Fork Mountain. Along summit near Blake Lookout. 1737 Comment
  HSC73963  Aira caryophyllea Gail Newton 1980-6-7 127 Humboldt Near Brush Mountain 1128 Comment
  HSC8851  Aira caryophyllea H. E. Parks, S. T. Parks Jun 1936 5850 Humboldt Spruce Cove, Trinidad Comment
  HSC8855  Aira caryophyllea N. R. Waite 1965-5-19 41 Humboldt W edge of Humboldt State University campus. Comment
  RSA205970  Aira praecox Joseph P. Tracy 1900-6-5 849 Humboldt Immediate vicinity of Eureka. 0 Comment
  RSA550893  Aira praecox R. F. Thorne 1965-8-9 35308 Humboldt Big Lagoon 3 Comment
  UC1198269  Alisma plantago-aquatica Joseph P. Tracy 1930-10-12 9214 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  HSC60375  Alisma triviale J. M. DiTomaso 1979-5-29 1077 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. Comment
  HSC98007  Allium amplectens Cara Witte 2007-7-8 450 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  UC2222699  Allium amplectens Joseph P. Tracy 1951-6-26 19596 Humboldt extreme head of Redwood Creek, n side Board Camp Mountain Board Camp Mountain, Redwood Creek 1541 Comment
  CAS-BOT-BC462972  Allium bolanderi Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  JEPS56361  Allium bolanderi W. L. Jepson 1902-7-1 1978 Humboldt Three Creeks to Willow Creek Comment
  UC1198198  Allium bolanderi Joseph P. Tracy 1936-6-10 14923 Humboldt mountain slopes w mouth of South Fork of Trinity River; South Fork of Trinity River 304 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
  HSC39553  Allium hoffmanii Thomas W. Nelson 1976-6-14 2706 Humboldt S of Lassic Peak 1524 Comment
  HSC67211  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-7-10 5440 Humboldt Along branch rd. off Swayback Ridge Rd., 0.5 mi. E of junction 1372 Comment
  HSC71823  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5955 Humboldt Ridge S of Mt. Lassic (Signal Peak) 1524 Comment
  SEINET10532720  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-10 Nelson 5417 Humboldt Blocksburg quad. T1s, r5e, intersection of secs. 13 & 14. Along road to red mt. .5 Miles w of junction with swayback ridge rd. Serpentine bald 1372 Comment
  HSC2941  Allium triquetrum D. V. Sanford 1963-4-27 48 Humboldt Near old mill behind HSC campus Comment
  UC275536  Allium unifolium Joseph P. Tracy 1923-7-4 6531 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  HSC41327  Allotropa virgata Brad W. Klipfel 1974-8-2 513 Humboldt Horse Mtn. Comment
  UC1224691  Allotropa virgata D. E. Anderson 1963-5-18 2447 Humboldt about 1 mi nw of Burnt Ranch School Comment
  CAS-BOT-BC171313  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt Bald Mountain; In cold wet meadow near High Prairie 1066 Comment
  RSA46861  Alnus rhombifolia Doris K. Kildale 1926-12-13 1428 Humboldt Bridgeville, bank on Van Duzen. 229 Comment
  HSC3396  Alnus rubra Dan O'Brien 1962-5-19 Humboldt 4.5 mi. E on Fickle Hill Rd. Comment
  HSC62778  Alnus rubra M. Dean Griswold Jr. 1979-5-30 89 Humboldt Along rd. up Jolly Giant Creek Comment
  UC527557  Alnus rubra C. B. Wolf 1931-8-28 2366 Humboldt Redwood Hwy 4 1/2 mi n of Fortuna Fortuna (on road to Eureka) 15 Comment
  SACT000308  Alopecurus geniculatus Malcolm Nobs, S. Smith 1949-8-3 Humboldt located on borders of irrigation ditch, 1 mile south of fields landing Comment
  UC1103312  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt Arcata <Bottom> North Coast Ranges, Arcata <Bottom> 15 Comment
  UC527823  Alopecurus geniculatus Ira L. Wiggins 1932-6-18 5867 Humboldt lagoon at mouth of Little R. Comment
  HSC8902  Alopecurus pratensis J. P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  UC1103311  Alopecurus saccatus Joseph P. Tracy 1912-7-21 3780 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC132199  Amaranthus retroflexus Joseph P. Tracy 1907-8-20 2599 Humboldt near hydesville; Northern Coast Region 60 Comment
  UC1222883  Ambrosia artemisiifolia Joseph P. Tracy 1950-8-20 19313 Humboldt Frank Graham's place; Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC13703  Ambrosia chamissonis Ira L. Wiggins 1930-7-7 4674 Humboldt Near Samoa Comment
  HSC5663  Ambrosia chamissonis D. E. Anderson 1961-9-2 1771 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  JEPS40955  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13687 Humboldt along coast in front of s end of Stone Lagoon; Dry Lagoon 3 Comment
  HSC5664  Ambrosia chamissonis H. E. Parks Sep 1941 24215 Humboldt Little River Comment
  HSC79544  Ambrosia chamissonis Kenneth Clark 1981-5-24 1396 Humboldt 100 yards W of Deadman's Gulch 3 Comment
  POM264459  Ambrosia chamissonis H. E. Parks 1941-08 24181 Humboldt On rocky and sandy beach, Big Lagoon Comment
  SEINET7014139  Ambrosia chamissonis R. Mastrogiuseppe, J. Mastrogiuseppe 1983-7-16 3491 Humboldt Dunes near Dry Lagoon. Comment
  CAS-BOT-BC142906  Amelanchier Doris Kildale 1931-5-10 10555 Humboldt Snow Camp Comment
  HSC96268  Amelanchier alnifolia var. semiintegrifolia J. Breton, A. Livingston 2005-6-10 7 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1357 Comment
  HSC56327  Amelanchier pallida Overton, Butler 1979-8-2 12680 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC143016  Amelanchier utahensis Doris K. Kildale 1928-4-29 5959 Humboldt Redwood Creek at Berry's Comment
  UC492196 Image available Amelanchier utahensis Joseph P. Tracy 1927-6-12 8140 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  HSC8845  Ammophila arenaria J. A. Waller 1965-5-18 23 Humboldt Samoa Comment
  SD41378  Ammophila arenaria Edith A. Purer 1932-7-27 4157 Humboldt Samoa, sand dunes. Comment
  HSC8841  Ammophila arenaria J. W. Bosworth 1965-5-20 54 Humboldt .25 mi. S of Samoa on the Samoa Rd. Comment
  POM286830  Anagallis arvensis Lyman Benson 1929-7-19 1585 Humboldt Weet Ranger St. Comment
  UC963845  Anaphalis margaritacea H. E. Parks and S. T. Parks 1943-8-1 24237 Humboldt along highway Stone Lagoon Comment
  RSA21448  Anaphalis margaritacea C. B. Wolf 1937-8-13 9212 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  CAS-BOT-BC391777  Anemone deltoidea Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  UC1125863  Anemone deltoidea A. E. Wieslander 1931-5-17 193 Humboldt Orick-Orleans Rd Orick Comment
  UC162853  Anemone deltoidea Joseph P. Tracy 1906-5-6 2444 Humboldt near Hydesville; North Coast Ranges 182 Comment
  UC1196189  Anemone deltoidea Joseph P. Tracy 1923-5-13 6200 Humboldt Strong's Station, on Van Duzen River Strong's Station; North Coast Ranges 60 Comment
  UC1197379  Angelica hendersonii Joseph P. Tracy 1936-8-17 15156 Humboldt Table Bluff 91 Comment
  UC183691  Angelica hendersonii Joseph P. Tracy 1912-7-21 3764 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC642308  Angelica hendersonii Joseph P. Tracy 1938-8-28 16134 Humboldt Trinidad 3 Comment
  HSC60374  Angelica lucida J. M. DiTomaso 1979-5-20 1058 Humboldt Above College Cove at Elks Head, 1 mi. N of Trinidad. Comment
  HSC71326  Angelica lucida J. M. DiTomaso 1980-6-21 1607 Humboldt Clam beach. Comment
  UC179914  Angelica lucida Joseph P. Tracy 1914-7-12 4581 Humboldt near Hookton (at s end of Humboldt Bay); Northern Coast Region, Humboldt Bay 0 Comment
  UC642351  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  HSC22864  Anisocarpus madioides D. E. Anderson 1965-5-8 3640 Humboldt About 2 mi. N of Willow Creek on road running along E side of Trinity River Comment
  CAS-BOT-BC271491  Anisocarpus madioides Doris K. Kildale 1927-5-17 3184 Humboldt Fish Creek near Garberville Comment
  UC1199432  Antennaria suffrutescens Joseph P. Tracy 1934-6-14 13216 Humboldt Horse Mountain 1432 Comment
  SEINET2031154 Image available Anthemis cotula J. P. Tracy 1909-7-4 3011 Humboldt Immediate vicinity of Eureka Comment
  HSC39951  Anthoxanthum occidentale Linda M. Barker 1976-2-22 1312 Humboldt 3 mi. W of Arcata Comment
  UCD85497  Anthoxanthum occidentale H. S. Yates 1936-6-22 5850 Humboldt 4 miles NE of Bald Mtn. Comment
  CAS-BOT-BC137739  Anthoxanthum odoratum David D. Keck 1948-7-2 6010 Humboldt 1.5 mile esat of Freshwater (Garfield), on Kneeland Road. Comment
  UCD56273  Anthoxanthum odoratum Harley P. Chandler 1901-5-1 1106 Humboldt North Coast Ranges, Humboldt Bay. 30 Comment
  HSC37848  Anthriscus caucalis Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UC1198743  Aphanes occidentalis Joseph P. Tracy 1934-3-11 13149 Humboldt Weitchpec 121 Comment
  HSC102583  Aquilegia formosa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1570 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC502925  Aquilegia formosa Joseph P. Tracy 1932-7-13 10504 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC64310  Aquilegia formosa var. formosa J. P. Smith 1973-5-26 6866 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC6527  Arabis glabra D. E. Anderson 1962-7-10 2245 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  UC162637  Arabis glabra Harley P. Chandler Jun 1901 1337 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CDA38203  Aralia californica T. Gallion & M. S. Bergseng 1959-7-23 2816 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  HSC40527  Aralia californica Thomas W. Nelson, James Nelson 1976-7-28 3059 Humboldt Along Hwy. 36, ca. 4 mi. W of Dinsmore Comment
  JEPS40071  Aralia californica Lincoln Constance 1934-5-29 740 Humboldt n. bank Bull Creek opposite Squaw Creek; Bull Creek Region, W. Fork Eel R. Comment
  CHSC26302  Arbutus menziesii Kathy M. Clemens 1977-4-8 15 Humboldt .5 mi W of Willow Creek, Hwy 299E. 93 mi W of Redding. 179 Comment
  HSC41316  Arbutus menziesii Brad Klipfel 1974-9-2 536 Humboldt Horse Mtn. Comment
  OBI33237  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UC1198126  Arceuthobium campylopodum J. P. Tracy 1901-6-23 1178 Humboldt near Ryan's Slough Eureka vicinity 0 Comment
  UC585944  Arctostaphylos Joseph P. Tracy 1934-3-11 13158 Humboldt French Camp Ridge 1066 Comment
  UC585945  Arctostaphylos Joseph P. Tracy 1934-3-11 13159 Humboldt French Camp Ridge 1066 Comment
  UC1225904  Arctostaphylos X candidissima Joseph P. Tracy 1947-7-9 17839 Humboldt Horse Mountain 1432 Comment
  JEPS38853  Arctostaphylos X media Joseph P. Tracy 1923-3-31 6171 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  UC1193031  Arctostaphylos columbiana R. H. Neuns 1950-7-13 129 Humboldt 3 mi s Alder Point; Quad. 29D2 548 Comment
  UC549500  Arctostaphylos columbiana J. E. Adams 1935-5-12 1046 Humboldt Patrick's Point Comment
  UC585917  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13139 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC876392  Arctostaphylos columbiana J. E. Adams 1935-5-12 1047 Humboldt Patrick's Point Comment
  UCD51493  Arctostaphylos columbiana B. L. Kay 1955-3-20 Humboldt 5 miles west of Garberville. Comment
  RSA252144  Arctostaphylos columbiana var. tracyi Gary D. Wallace 1974-12-22 1345 Humboldt Near coast N of Trinidad at the edge of the W part of Big Lagoon. 61 Comment
  RSA70856  Arctostaphylos columbiana var. tracyi J. E. Adams 1935-5-12 1045 Humboldt Patrick's Pt. Comment
  HSC101662  Arctostaphylos glandulosa subsp. glandulosa J. P. Smith, J. O. Sawyer 2011-4-23 13123 Humboldt Kings Peak Road near Shelter Cove. 523 Comment
  UC585934  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13330 Humboldt 5 mi s Harris (on road towards Bell Springs); North Coast Ranges 762 Comment
  UC585935  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13332 Humboldt ridge 5 mi s Harris (on the road towards Bell Springs); North Coast Regions 762 Comment
  RSA632789  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27764 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA632804  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27796 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  CAS-BOT-BC24326  Arctostaphylos manzanita subsp. manzanita L. R. Abrams 1918-6-15 7111 Humboldt Brannan Mt. near Willow Creek. 1371 Comment
  HSC98992  Arctostaphylos manzanita subsp. manzanita Cara Witte 2008-6-4 686 Humboldt Ammon Ridge Road. Approximately 1/2 mile east of intersection with National Forest 1. 1562 Comment
  JEPS38923  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1225895  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1942-7-18 17285 Humboldt Garberville 152 Comment
  UC585963  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA24337  Arctostaphylos nevadensis C. B. Wolf 1941-2-26 4040 Humboldt 6 2/10 mi. W. of Klamath River Bridge on Weitchpec to Orick Rd. 610 Comment
  UC585957  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC40064  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13160 Humboldt French Camp Ridge 1066 Comment
  HSC98990  Arctostaphylos nevadensis subsp. nevadensis Cara Witte 2008-6-27 774 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  CAS-BOT-BC27298  Arctostaphylos tracyi Joseph Prince Tracy 1923-2-18 6141 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC43981  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17502 Humboldt Eureka 45 Comment
  CAS-BOT-BC43990  Arctostaphylos uva-ursi Doris Kildale Gillespie 1931-6-7 10660 Humboldt South Fork Mt. Black Lookout 1726 Comment
Read comments
May 16 2019
  HSC31470  Arctostaphylos uva-ursi Steve Selva 1974-8-28 91 Humboldt Approx. 5 mi. S of Arcata on the Samoa Peninsula Comment
  RSA286310  Arctostaphylos uva-ursi var. coactilis R. F. Thorne 1974-7-29 45082 Humboldt Samoa Dunes. Comment
  HSC16901  Armeria maritima subsp. californica J. W. Johnson 1962-5-9 1337 Humboldt Arcata, stabilized ridge 3, Christenson Farm, Samoa Peninsula Comment
  RSA246710  Armeria maritima subsp. californica Robert F. Thorne, Percy C. Everett 1965-8-5 35158 Humboldt Samoa Dunes. 3 Comment
  SEINET10537845  Armeria maritima subsp. californica Mary Susan Taylor 1990-8-22 Taylor 6083 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  CAS-BOT-BC82102  Arnica cernua Joseph P. Tracy 1938-6-13 15902 Humboldt Horse Mountain 1432 Comment
  RSA43686  Arnica discoidea H. M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  UC29649  Arnica discoidea H. N. Bolander 1867-1 Humboldt Humboldt Co. Comment
  UC180348  Arrhenatherum elatius Joseph P. Tracy 1913-6-10 4084 Humboldt near Bridgeville (Northern Coast Ranges, Rogers Ranch); Northern Coast Ranges, Rogers Ranch 243 Comment
  HSC98817  Artemisia douglasiana Cara Witte 2007-9-3 642 Humboldt Forest Service Road 5N09. 1 mile east of intersection with National Forest 1. 1332 Comment
  UC1222997  Artemisia douglasiana Joseph P. Tracy 1948-9-6 18158 Humboldt at Willow Creek (Tracy's place); Trinity River Valley 152 Comment
  CHSC55838  Artemisia pycnocephala L. P. Janeway 1987-7-31 2540 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of the Eureka City Airport. 3 Comment
  SEINET198593  Artemisia pycnocephala H. E. Parks, S. T. Parks Jun 1952 24495 Humboldt Samoa Comment
  UC1052468  Artemisia pycnocephala H. E. and S. T. Parks 1952-6-1 24495 Humboldt Samoa Comment
  RSA296735  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC1199378  Artemisia suksdorfii Joseph P. Tracy 1939-5-28 16309 Humboldt coast bluffs s Centerville 60 Comment
  CAS-BOT-BC400533  Asarum caudatum Volney Rattan 1882-6-1 s.n. Humboldt Mad River Comment
  HSC49144  Asarum caudatum J. O. Sawyer 1977-4-23 2840 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC57024  Asarum caudatum Overton, Butler 1979-7-24 9641 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC6184  Asarum caudatum Harley P. Chandler Jun 1901 1478 Humboldt North Coast Ranges, Klamath River 396 Comment
  UCR3539  Asarum caudatum David Whistler, H. M. Whistler 1964-7-31 640731- 8 Humboldt North Coast, at Del Norte county line on US Hwy 101 [between Orick and Klamath] 137 Comment
  HSC3266  Asarum caudatum D. E. Anderson 1962-3-8 1929 Humboldt E of HSC campus Comment
  RSA46484  Asclepias cordifolia Doris K. Kildale 1925-7-2 963 Humboldt Bug creek 915 Comment
  UC154170  Asclepias cordifolia Harley P. Chandler June, 1901 1347 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC162718  Asclepias cordifolia Joseph P. Tracy 1911-7-9 3477 Humboldt near Willow Creek (hill slopes at w side of river); Northern Coast Ranges, Trinity River 182 Comment
  HSC40010  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt Along ridge N of Bear Creek 1463 Comment
  RSA53857  Aspidotis densa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  UC440176  Aspidotis densa Joseph P. Tracy 1919-9-25 5301 Humboldt Trinity Summit; Northern Coast Ranges 182 Comment
  CDA42726  Aspidotis densa Gordon Leppig 1998-7-1 861 Humboldt Horse Mountain, Ammon Ridge Road 1 kilometer east of Titlow Hill Road. Comment
  UC1795051  Aspidotis densa Ruth Kirkpatrick 2003-8-2 1177 Humboldt Kneeland Airport, E-facing slope to E of runway Comment
  HSC96346  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land, edge of logging road. 700 Comment
  CAS-BOT-BC186562  Astragalus nuttallii var. virgatus F. H. Utech 1986-5-23 86 -385 Humboldt King Mountain Range: 0.5 mi NNW on Kings Peak Road (Humboldt Co. hwy C4A) from junction with Shelter Cove Road 600 Comment
  CAS-BOT-BC193137  Astragalus rattanii var. rattanii Joseph P. Tracy 1932-6-19 10245 Humboldt Buck Mountain, lower foothills of its northwest slope 762 Comment
  HSC25767  Astragalus umbraticus D. E. Anderson 1965-5-15 3694 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  UC1199093  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  UC179937  Astragalus umbraticus Joseph P. Tracy 1914-7-5 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  UCR37845  Astragalus umbraticus D. E. Anderson 1965-5-15 3694 Humboldt About 7 mi north of Hoopa on Bloody Camp Prairie Road. Comment
  HSC103946  Astragalus umbraticus T. Salzberg 1996-7-26 186 Humboldt Six Rivers National Forest; Forest Service Rd. 11N16, which is a tributary of Slate Creek Road. 1293 Comment
  HSC69890  Asyneuma prenanthoides Thomas W. Nelson, Jane P. Nelson 1977-7-30 3662 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  UCD66901  Asyneuma prenanthoides John M. Tucker 1948-9-3 1859 Humboldt Friday Ridge Road, just below Black Rock (junction of Friday Ridge Road and the Horse Mountain - Grouse Mountain Road). Comment
  CAS-BOT-BC69522  Athyrium filix-femina subsp. cyclosorum L. R. Abrams 1916-7-18 6109 Humboldt Arcata to Trinidad, 18 mi. along coast. Comment
  HSC6517  Athysanus pusillus D. E. Anderson 1963-5-19 2470 Humboldt Kneeland Area Comment
  HSC9010  Avena fatua E. W. Styskel 1964-4-3 55 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  HSC90476  Baccharis pilularis subsp. consanguinea Jean Hanson 1980-10-26 127 Humboldt Indian (Gunther) Island. In Humboldt Bay, City of Eureka. W end of island next to dike. Comment
  HSC91925  Baccharis pilularis subsp. consanguinea E. Mackey 1986-10-7 Humboldt Patrick's Point State Park; near cliff edge at Palmer's Point Comment
  SEINET3132551  Baccharis pilularis subsp. consanguinea J. W. Johnson 1961-11-20 1409 Humboldt Arcata; at the edge of the vernal pond community; hollow 10, W.M. Lanphere farm; Samoa Peninsula. Comment
  RSA167192  Balsamorhiza deltoidea Joseph P. Tracy 1950-6-15 18792 Humboldt Mail Ridge, north of Harris 7 miles Comment
  SEINET11861883  Balsamorhiza deltoidea J. P. Tracy 1950-6-15 18792 Humboldt Mail Ridge, N of Harris 7 mi Comment
  HSC57311  Barbarea verna Terry Griswold, Marvin Butler 1979-7-10 6301 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA245262  Barbarea verna Thomas W. Nelson 1973-4-25 798 Humboldt Beside Hwy 101 at Bayside turnoll. Comment
  POM118631  Barbarea vulgaris Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC91924  Bellis perennis E. Mackey 1987-1-17 Humboldt Patricks Point State Park, near Wedding Rock. Comment
  UCD129543  Bellis perennis Joseph M. DiTomaso 1976-3-28 343 Humboldt Arcata, corner of 3rd and D. Comment
  CAS-BOT-BC48157  Bensoniella oregona R. Bacigalupi; L. Constance; J. P. Tracy; R. Moran; R. L. Rodriguez; S. J. Carlquist 1951-6-14 3410 Humboldt Bald Mountain ridge - in bog, edge of forest at High Prairie, on long high ridge between Mad River and Redwood Creek 1066 Comment
  OBI30306  Berberis nervosa Wallace Weber, John C. Cooke, D. J. Pinkava, & David J. Keil 1969-8-19 2214 Humboldt 24.9 mi W of Humboldt county line on rte 299 Comment
  CAS-BOT-BC75796  Berberis pinnata Doris K. Kildale 1925-12-27 1452 Humboldt Kneeland. 762 Comment
  UC13491  Betula occidentalis Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  CAS-BOT-BC412988  Bistorta bistortoides Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC412989  Bistorta bistortoides Volney Rattan 1882-1-1 s.n. Humboldt Kneeland Comment
  HSC55066  Bistorta bistortoides G. L. Clifton, Griswold 1979-7-31 11638 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC55079  Bistorta bistortoides G. L. Clifton, Griswold 1979-7-31 11712 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC66277  Blechnum spicant Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  POM118334  Blechnum spicant Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  SD112347  Blechnum spicant Darley F. Howe 1961-8-1 3109 Humboldt Three mi. N of Arcata on Hwy. 101. Comment
  HSC986  Blechnum spicant R. A. Eagle 1964-5-15 41 Humboldt H. S. C. campus, trail to Jolly Giant parking lot Comment
  UCD136026  Blechnum spicant Gordon Leppig 1998-6-26 860 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. UTM zone 10, 4535N, 405E. 18 Comment
  HSC69759  Bolboschoenus robustus Thomas W. Nelson 1977-9-22 3748 Humboldt E side of SR 101 just N of the Eureka Airport Comment
  CDA42735  Botrychium multifidum T. C. Fuller 1961-9-28 7054 Humboldt 1.5 miles south of Samoa. 0 Comment
  UC667114  Boykinia major Joseph P. Tracy 1934-7-18 13448 Humboldt Grouse Mountain , at top of mountain (swampy meadow at top of mountain) 1615 Comment
  HSC39223  Boykinia occidentalis D. E. Anderson, J. P. Smith 1971-7-6 - 1320 Humboldt Rock wall near bridge over Supply Creek Comment
  POM274466  Boykinia occidentalis Lyman Benson 1928-7-12 388 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  UC667115  Boykinia occidentalis Joseph P. Tracy 1934-7-22 13484 Humboldt at crossing of the Bridgeville-Kneeland Road North Yager Creek 396 Comment
  JEPS18641  Brickellia californica Joseph P. Tracy 1931-10-18 9736 Humboldt 2 to 5 mi e of the South Fork, along Eel River South Fork Eel River (Camp Grant); Eel River 45 Comment
  POM289092  Brickellia californica Lyman Benson 1928-7-11 456 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  UC165031  Brickellia californica Joseph P. Tracy 1900-9-10 960 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  UC527563  Brickellia californica C. B. Wolf 1931-8-31 Humboldt 1 mi above its mouth South Fork of Trinity River ((Sandy Bar Swimming Hole), South Fork of Trinity River) 243 Comment
  UC581799  Brickellia greenei Joseph P. Tracy 1935-7-30 14361 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC127680  Brickellia greenei Joseph P. Tracy 1935-7-30 14361 Humboldt Serpentine formatin, Salmon Summit 1767 Comment
  CHSC20341  Briza maxima D. E. Anderson 1965-5-8 3626 Humboldt About 1 mile east of Blue Lake on Hw. 299. Comment
  UCD57437  Briza minor A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3455 Humboldt 2 miles north of Orleans. Comment
  UC666901  Brodiaea elegans subsp. elegans Joseph P. Tracy 1930-6-15 8759 Humboldt on grassy places Alder Point 152 Comment
  RSA249396  Brodiaea stellaris D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5697 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC249867  Bromus carinatus var. carinatus Joseph P. Tracy 1923-6-18 6282 Humboldt Northern Coast Ranges, Bear River Ridge Bear River Ridge; Northern Coast Ranges, Bear River Ridge 304 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
  RSA10039  Bromus commutatus Joseph P. Tracy 1933-6-9 12534 Humboldt Shively. On Eel River. 30 Comment
  UC212889  Bromus commutatus Joseph P. Tracy 1919-5-25 5138 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC9278  Bromus diandrus W. F. Nickel 1965-5-13 Humboldt College Elementary School, on HSU campus. Comment
  UC180223  Bromus diandrus Joseph P. Tracy 1913-6-22 4273 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  POM161048  Bromus hordeaceus Joseph P. Tracy 1919-5-25 5138 Humboldt Eureka. 0 Comment
  UCD58982  Bromus madritensis A. H. Murphy 1951-5-21 s.n. Humboldt Tooby and Prior Ranch. Blocksburg. Comment
  CAS-BOT-BC162213  Bromus orcuttianus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  RSA126835  Bromus sterilis H. S. Yates 1936-5-17 5714 Humboldt Near Burr valley; South Fork Pk. 915 Comment
Read comments
Apr 6 2017
  UC552678  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt Northern Coast Ranges, French Camp Ridge French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  SEINET200634 Image available Bromus tectorum Joseph P. Tracy 1931-5-3 9349 Humboldt Along Mad River near Blue Lake. 15 Comment
  SEINET181181 Image available Bromus vulgaris Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15067 Humboldt Bolling Grove State Park. Comment
  CAS-BOT-BC36864  Cakile edentula var. edentula Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1337 Humboldt At easten shore of Stone Lagoon. Comment
  HSC6608  Cakile maritima D. E. Anderson 1961-9-2 1770 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  HSC79357  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Shelter Cove, 5' above mean high tide, E facing coastal bluff Comment
  UC1145051  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt at bridge 3 mi e Petrolia (bluff bank of river); Mattole River 30 Comment
  UC1145052  Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 A Humboldt near Panther Gap (on road between Mattole and Bull Creek) 822 Comment
  UC1146639  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1728 Humboldt Mattole River Comment
  HSC58672  Calamagrostis koelerioides Gilbert Muth 1979-8-1 12149 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  RSA10021  Calamagrostis koelerioides Joseph P. Tracy 1933-8-30 13008 Humboldt Horse Mountain. In open Forest of Jeferey Pine 1372 Comment
  UC526777  Calamagrostis koelerioides Joseph P. Tracy 1926-6-20 7635 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  CAS-BOT-BC185183  Calamagrostis nutkaensis David D. Keck 1948-7-1 5976 Humboldt Northeast end of Big Lagood. Comment
  SEINET10521063  Calamagrostis nutkaensis A. Arthur Heller 1924-7-24 Heller 13880 Humboldt Sandy soil in shaded places on the bluff at Numboldt County camp 7 miles south of Trinidad. Comment
  UCD57537  Calamagrostis ophitidis R. Tofsrud 1948-9-3 s.n. Humboldt 3-4 miles south of Berry's Summit at road junction near summit of Horse Mountain. 1463 Comment
  HSC17634  Calandrinia ciliata P. N. Slattery 1963-3-31 35 Humboldt Clam Beach Comment
  HSC17635  Calandrinia ciliata R. T. Forester 1963-5-6 48 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  HSC95787  Calocedrus decurrens Will Ferrand 2001-6-17 28 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  RSA47116  Calocedrus decurrens Doris K. Kildale 1926-8-15 2540 Humboldt Hoopa Mt. 579 Comment
  CHSC24838  Calochortus tolmiei A. D. Launer 1976-4-9 2 Humboldt N roadbank of Church St., ca. 100 yds e of Blocksburg. 472 Comment
  UC146214  Calochortus tolmiei Joseph P. Tracy 1908-6-8 2624 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC14999  Calochortus tolmiei Mrs. M. H. Manning Apr 1901 10 Humboldt near Hupa Comment
  HSC45281  Calochortus tolmiei Clifton Raymond Chesbrough 1971-7-19 57 Humboldt 1.0 mi. N of Trinidad near ocean Comment
  CAS-BOT-BC273311  Calycadenia fremontii H. M. Hall 1930-10-1 12922 Humboldt Trinity River at Willow Creek Comment
  HSC16573  Calypso bulbosa S. G. Estes 1964-4-25 2 Humboldt May Ranch, 2 mi. N of Bridgeville Comment
  RSA256574  Calypso bulbosa J. D. Ackerman 1975-5-3 436 Humboldt 1 mile east of Blue Lake, along hwy. 299 T6N R2E S29 Comment
  RSA259585  Calypso bulbosa J. D. Ackerman 1976-4-27 754 Humboldt 10 Mi. E of Blue Lake on rd. to Maple Creek. Comment
  UC154167  Calystegia occidentalis subsp. occidentalis Harley P. Chandler June, 1901 1343 Humboldt Hupa Indian Reservation , Hupa Indian Reservation (North Coast Ranges) 152 Comment
  UC582720  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1937-7-24 15531 Humboldt head of Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  SEINET12343673  Calystegia purpurata J. P. Tracy 1950-6-8 18769 Humboldt Near Petrolia, 2 mi down river Comment
  HSC46956  Calystegia soldanella J. P. Smith, Thomas W. Nelson 1977-6-30 9204 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC49802  Calystegia soldanella R. York 1979-5-18 295 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  HSC59205  Calystegia soldanella Terry Roth 1979-5-24 81 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  UC1197877  Calystegia soldanella Joseph P. Tracy 1915-6-6 4650 Humboldt sandy beach near mouth Elk River (Eureka); Northern Coast Region, nr mouth Elk River, at Eureka 0 Comment
  HSC16450  Camissonia cheiranthifolia D. E. Anderson 1963-3-16 2386 Humboldt Scotia Bluffs Comment
  HSC16441  Camissonia cheiranthifolia J. W. Johnson 1961-5-13 1358 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  POM271978  Camissonia cheiranthifolia subsp. cheiranthifolia Lyman Benson 1928-7-10 440 Humboldt Clam Beach, Trinidad. 11 Comment
  UCD103508  Camissoniopsis cheiranthifolia Linda M. Barker 1976-5-13 1492 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC602534  Campanula prenanthoides Joseph P. Tracy 1934-8-23 13600 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  SEINET10463039  Campanula prenanthoides Tracy 1909-8-1 TRACY 3061 Humboldt KNEELAND PRAIRIE, WOODS, GRAVELLY SOIL 762 Comment
  SEINET10463344  Campanula prenanthoides Duncan 1920-9-22 Duncan s.n. Humboldt HOOPA VALLEY Comment
  HSC99576  Campanula scouleri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 241 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  SDSU1307  Campanula scouleri D. F. Howe 1964-8-7 3944 Humboldt 8.2 miles from #96 on Mill Creek road, Hoopa Valley. 1067 Comment
  SEINET10463755  Campanula scouleri Baker 1923-7-20 Baker 52 Humboldt Road from Redwood 61 Comment
  HSC100459  Cardamine breweri Carl C. Marshall Apr 1886 158 Humboldt Wet places, near Tulley's. Comment
  CAS-BOT-BC37436  Cardamine californica Alice Eastwood 1907-4-22 25 Humboldt Near Trinidad. Comment
  HSC6703  Cardamine californica Elrid H. Spinas 1948-5-15 17 Humboldt Horse Mtn. Comment
  UC1199182  Cardamine californica Joseph P. Tracy 1935-3-10 13732 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on Van Duzen River) 91 Comment
  UC183542  Cardamine californica Joseph P. Tracy 1913-6-17 4180 Humboldt near summit Buck Mountain; Northern Coast Ranges, near summit Buck Mountain 1524 Comment
  POM266034  Cardamine californica var. integrifolia Lincoln Constance, Reed C. Rollins 1942-5-20 2998 Humboldt Eel River 1 mile N of Pepperwood. 46 Comment
  UC302042  Cardamine californica var. integrifolia Joseph P. Tracy 1926-3-28 7393 Humboldt Blue Slide on Van Duzen River; Northern Coast Ranges, Blue Slide on Van Duzen River 91 Comment
  HSC6645  Cardamine oligosperma Lincoln Constance 1934-5-31 745 Humboldt S Fork of the Eel River, Bull Creek Flat, along Bull Creek, W boundary of park to Grasshopper Peak, N side of creek Comment
  HSC43205  Cardamine oligosperma R. Sutherland 1976-8-13 29 .13876 Humboldt Mouth of Redwood Creek at S Fork of Eel River 87 Comment
  HSC6641  Cardamine oligosperma Gerald T. Rood 1962-5-11 3 Humboldt Kneeland Rd., 0.25 mi. E of Barry Rd. Comment
  CAS-BOT-BC384764  Cardionema ramosissimum Alice Eastwood 1923-8-14 12315 Humboldt Samoa Comment
  CAS-BOT-BC384768  Cardionema ramosissimum Ira L. Wiggins 1930-7-11 4687 a Humboldt Sand dunes near Samoa Comment
  CDA18240  Cardionema ramosissimum G. D. Barbe, T. C. Fuller 1974-6-19 1878 Humboldt North Coast Ranges; Mad River mouth, at end of Iversen Lane, Tyee City. 7 Comment
  UC1222955  Carduus tenuiflorus Joseph P. Tracy 1950-6-8 18740 Humboldt on s side of Cape Ridge; Bear River, Capetown, Cape Ridge 30 Comment
  RSA286355  Carex aquatilis var. dives Robert F. Thorne 1974-7-29 45076 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  SEINET11629975  Carex athrostachya J. P. Tracy 1950-1 18989 Humboldt NW slope of Buck Mountain, Burr Valley 1067 Comment
  JEPS63598  Carex barbarae Lincoln Constance 1934-6-7 772 Humboldt Cabin Creek Bridge, on Bull Creek Road Comment
  UC562431  Carex bolanderi Joseph P. Tracy 1936-6-9 14912 Humboldt Upper Mattole 457 Comment
  RSA364621  Carex bolanderi Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans. Comment
  RSA88693  Carex bolanderi F. W. Peirson 1932-7-7 10261 Humboldt Willow Creek, a few miles above the town of that name. Comment
  SEINET10706572  Carex bolanderi Huron H. Smith 1911-1 Smith 3834 Humboldt Comment
  JEPS79836  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt on ridge 2 mi sw of top of Salmon Summit; Salmon Summit 1767 Comment
  CAS-BOT-BC110194  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon. 30 Comment
  RSA337439  Carex buxbaumii Robert F. Thorne, Percy C. Everett 1965-8-7 35197 Humboldt Big Lagoon, south end. 2 Comment
  HSC74358  Carex concinnoides Gail Newton 1980-6-17 218 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC34437  Carex deflexa var. boottii Joseph Prince Tracy 1935-6-2 13921 Humboldt Big Lagoon. 30 Comment
  UC1103122  Carex densa Joseph P. Tracy 1937-5-31 15325 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC1158127  Carex densa Joseph P. Tracy 1942-6-15 17135 Humboldt Englewood, near Redcrest resort 91 Comment
  CAS-BOT-BC34970  Carex densa Joseph Prince Tracy 1928-6-17 8453 Humboldt Northern Coast Ranges. Trinity River Valley, at Willow Creek. 152 Comment
  UC562259  Carex densa Joseph P. Tracy 1928-6-17 8453 Humboldt Trinity River Valley, at Willow Creek Northern Coast Ranges 152 Comment
  UC195347  Carex deweyana subsp. leptopoda Joseph P. Tracy 1916-6-25 4746 Humboldt Redwood Creek, at point E from Trinidad 152 Comment
  JEPS79853  Carex echinata subsp. echinata Joseph P. Tracy 1933-7-25 12845 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  CHSC97053  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common in northern section. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  UC197209  Carex echinata subsp. phyllomanica Joseph P. Tracy 1913-7-13 4364 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  SEINET7483969 Image available Carex exsiccata Joseph P. Tracy 1934-1 13502 Humboldt Along coast in front of South End of Stone Lagoon. 3 Comment
  POM126509  Carex feta Joseph P. Tracy 1921-6-12 5828 Humboldt Butler Valley. 152 Comment
  UC1152058  Carex fracta Joseph P. Tracy 1949-8-26 18515 Humboldt 6 mi NE of Hawkins Bar (meadow at Fern Creek, Happy Camp Mountain); Trinity Summit Range 1219 Comment
  JEPS80027  Carex globosa Joseph P. Tracy 1936-5-22 7507 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC28420  Carex gracilior Joseph Prince Tracy 1938-6-9 15878 Humboldt Dobbyn Creek 152 Comment
  JEPS25973  Carex harfordii Joseph P. Tracy 1935-6-8 13938 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC21753  Carex hassei Joseph Prince Tracy 1941-5-11 16868 Humboldt Big Lagoon. 152 Comment
  CAS-BOT-BC21019  Carex hendersonii Joseph Prince Tracy 1926-6-13 7598 Humboldt Blue Lake. 152 Comment
  UC249765  Carex hendersonii Joseph P. Tracy 1923-6-20 6331 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  CHSC90288  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8579 B Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC99369  Carex lenticularis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 18 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC249733  Carex lenticularis var. limnophila Joseph P. Tracy 1923-6-17 6275 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  CAS-BOT-BC31463  Carex leptopoda Joseph Prince Tracy 1943-7-18 17442 Humboldt Big Lagoon 9 Comment
  HSC103595  Carex luzulina Thomas W. Nelson, Jane Nelson 1987-6-11 8603 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  JEPS79830  Carex luzulina Joseph P. Tracy Jul 16 1930-Jul 19 1930 8987 Humboldt South Fork Mountain at McKay Camp, Northern Coast Ranges South Fork Mountain; Northern Coast Ranges, South Fork Mt., McKay Camp 1676 Comment
  CAS-BOT-BC31582  Carex luzulina var. luzulina Doris K. Kildale 1931-5-10 10692 Humboldt Snow Camp. Comment
  HSC85707  Carex mendocinensis L. P. Janeway 1982-6-20 14 Humboldt S of Horse Mtn., along Rd. 6N36, 100 m N of Titlow Hill Rd. 1384 Comment
  RSA0014503  Carex mendocinensis Joseph P. Tracy 1926-6-6 7576 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  HSC102231  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1152 Humboldt Patterson Meadows 1555 Comment
  HSC45437  Carex microptera Thomas W. Nelson, Jane P. Nelson 1978-7-2 4401 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  HSC70636  Carex multicaulis R. York 1980-5-18 600 Humboldt Near Black Mtn. 792 Comment
  HSC103144  Carex multicostata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1528 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC44074  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-7-1 3581 Humboldt Along road, N from Alder Springs 1463 Comment
  HSC44075  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-7-1 2932 Humboldt W of Mount Lassic (Signal Peak) 1677 Comment
  SEINET3904281  Carex multicostata D. H. Norris 1971-7-17 19597 Humboldt Moist meadow at intersection of Kneeland-Bridgeville road and Redwood House Rd.; 0 Comment
  CAS-BOT-BC119536  Carex nudata Joseph Prince Tracy 1935-6-22 13959 Humboldt Eel River, at mouth of Larrabee Creek. Comment
  HSC49245  Carex nudata M. A. Baker 1979-4-27 701 Humboldt Six Rivers National Forest Comment
  JEPS63691  Carex obnupta William S. Cooper 1925-7-29 112 Humboldt Samoa Comment
  JEPS80018  Carex obnupta Joseph P. Tracy 1912-7-31 3898 Humboldt on nw slope of Buck Mountain Northern Coast Ranges, Burr Valley, Buck Mountain 1066 Comment
  SEINET7569469 Image available Carex obnupta David Castaner 1989-6-19 10249 Humboldt Fern Canyon. Comment
  CAS-BOT-BC119267  Carex ovalis Joseph Prince Tracy 1936-5-29 14826 Humboldt Gans Prairie on ridge E or Orick. 548 Comment
  UC562552  Carex ovalis Joseph P. Tracy 1927-7-17 8279 Humboldt lower w foothills of Chaparral Mountain; North Coast Ranges, Three Cabins 457 Comment
  UC302099  Carex pachystachya Joseph P. Tracy 1911-7-7 3390 Humboldt three mi nw junction of Willow Creek with Trinity River (at meadows on mt. side, near Beebe's Ranch); Northern Coast Ranges; NW of junction of Willow Creek w/ Trinity River, Humboldt Co., near Beebe's Ranch. 914 Comment
  HSC48035  Carex pachystachya D. H. Norris 1972-6-26 22972 Humboldt Along Grouse Mtn. Rd. about 3 mi. from intersection with Horse Mtn. Rd. Comment
  POM301859  Carex pachystachya Joseph P. Tracy 1938-6-15 15934 Humboldt Vicinity of Carlotta. 30 Comment
  UC1103095  Carex pachystachya Joseph P. Tracy 1934-7-12 13374 Humboldt e Big Lagoon 3 Comment
  RSA550443  Carex preslii R. Tallent 1987-8-11 893 Humboldt Six Rivers National Forest: Roadside S of Horse Mtn. 1450 Comment
  JEPS79843  Carex scopulorum var. bracteosa Joseph P. Tracy 1932-7-14 10562 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  UC213329  Carex scopulorum var. bracteosa Joseph P. Tracy 1919-9-25 5298 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  CAS-BOT-BC117538  Carex serratodens Joseph Prince Tracy 1926-6-27 7692 Humboldt Horse Mountain. Comment
  CHSC102857  Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt Outer North Coast Range. Above Chezen Road, at junction with Route 299; between Lord-Ellis and Berry summits. 510 Comment
  RSA91642  Carex tumulicola Alice Eastwood, John Thomas Howell 1937-6-23 4758 Humboldt Dinsmore s. Comment
  UC8083  Carex tumulicola Harley P. Chandler June 1901 1416 Humboldt Klamath River North Coast Ranges 335 Comment
  UCD140938  Carex tumulicola Collector Unknown 1940-6-27 s.n. Humboldt Miranda. Comment
  NY11390  Carex unilateralis J. P. Tracy 1912-7-21 3783 Humboldt 30.5 Comment
  UC1152074  Carex unilateralis Joseph P. Tracy 1948-6-13 18034 Humboldt Larrabee Creek Road, halfway between Bridgeville and Blocksburg; Larrabee Valley 731 Comment
  UC562649  Carex unilateralis Joseph P. Tracy 1927-7-17 8276 Humboldt Three Cabins; lower western foothills of Chaparral Mountain 457 Comment
  UC1103614  Carex vesicaria Joseph P. Tracy Jul 16 1930-Jul 19 1930 8988 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC562331  Carex vesicaria Joseph P. Tracy 1934-8-29 13622 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC114983  Carex viridula Robert F. Thorne; P. Everett 1965-8-7 35198 Humboldt Big Lagoon at edge of bog at S end of Lagoon. 1 Comment
  CAS-BOT-BC114985  Carex viridula Joseph Prince Tracy 1924-7-13 6720 Humboldt In brackish swamp, Big Lagoon. 6 Comment
  UC1056035  Carex viridula var. viridula H. E. Parks September 1935 5214 Humboldt Dry Lagoon Comment
  HSC26884  Castilleja affinis subsp. litoralis Clifton Raymond Chesbrough 1973-6-19 102 Humboldt .5 mi. N of College Cove along the coast Comment
  UC1196863  Castilleja affinis subsp. litoralis Joseph P. Tracy 1912-4-21 3575 Humboldt n slope Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  UC147876  Castilleja affinis subsp. litoralis J. P. Tracy 1900-6-25 864 Humboldt immediate vicinity Eureka 0 Comment
  JEPS9134  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  JEPS3830  Castilleja miniata Joseph P. Tracy 1939-8-20 16329 Humboldt near Blue Lake; Mad River 15 Comment
  UC213503  Castilleja miniata Joseph P. Tracy 1919-9-18 5228 Humboldt Trinity Summit; Northern Coast Ranges 1828 Comment
  HSC72497  Castilleja miniata J. P. Smith, Steve Selva 1970-6-30 4120 Humboldt Comment
  HSC35593  Castilleja pruinosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2004 Humboldt French Camp, Bald Hills. Comment
  HSC74464  Castilleja pruinosa M. A. Baker 1980-5-18 1362 Humboldt Near Black Mtn. 792 Comment
  UC26418  Castilleja pruinosa Harley P. Chandler Jun 1901 1485 Humboldt Klamath River; North Coast Ranges 426 Comment
  JEPS103929  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7875 Humboldt 4.3 mi SE of junction of rt. 299 and Titlow Hill Rd. on way to Horse Mt. Comment
  SBBG26849  Castilleja rubicundula subsp. lithospermoides H. E. Parks, J. P. Tracy 1930-5-25 796 Humboldt vicinity of Bridgeville, Laribee Valley (Larabee Valley) Comment
  CAS-BOT-BC32691  Ceanothus X humboldtensis James B. Roof 1987-4-15 s.n. Humboldt Originally collected at Manhart Ranch, near Miranda Comment
  UC176960  Ceanothus cordulatus Joseph P. Tracy 1912-7-31 3936 Humboldt near summit of Buck Mt.; Northern Coast Ranges Comment
  UC176125  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1913-6-17 4173 Humboldt near summit of Buck Mt. North Coast Ranges 1676 Comment
  HSC37594  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-17 0 .17575 Humboldt Along Horse Mtn. Rd 518 Comment
  HSC101661  Ceanothus incanus J. P. Smith, J. O. Sawyer 2011-4-23 13122 Humboldt Along road from Redway to Shelter Cove 208 Comment
  HSC37052  Ceanothus incanus R. Sutherland 1975-6-3 1 .3675 Humboldt 396 Comment
  CAS-BOT-BC63682  Ceanothus integerrimus L. B. Kildale 1927-5-15 3301 Humboldt Petrolia. Comment
  HSC32265  Ceanothus integerrimus J. O. Sawyer 1970-6-24 2234 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  JEPS42458  Ceanothus integerrimus W. L. Jepson 1902-6-19 1879 Humboldt Bell's Spring to Harris 1066 Comment
Read comments
Sep 7 2007
  OBI36663  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt Ca. 4 mi SE of SR299 along Titlow Hill rd below Horse Mtn Summit rd Comment
  HSC97918  Ceanothus integerrimus var. integerrimus Cara Witte 2007-6-14 276 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  UC1198030  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1933-5-21 12207 Humboldt Bridgeville near mouth Little Larrabee Creek, Bridgeville 198 Comment
  UC176049  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1913-6-27 4354 Humboldt Near Bridgeville McClellan Mountain, 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
  HSC18375  Ceanothus pumilus P. J. Zinke 1950-8-24 156 Humboldt Samuels Elk Ridge Ranch, 8 mi. W of Philipsville 701 Comment
  HSC37614  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 6 .28575 Humboldt N Fork of Horse Mtn. Creek 396 Comment
  JEPS42147  Ceanothus thyrsiflorus W. L. Jepson 1921-8-11 9409 Humboldt Big Lagoon, S end of Fern prairie Humboldt coast Comment
  SEINET3837108 Image available Ceanothus thyrsiflorus Joseph P. Tracy 1935-6-2 13924 Humboldt Big Lagoon 61 Comment
  UC1004333  Ceanothus thyrsiflorus W. L. Colwell 1954-11-20 21 Humboldt along Eel River 3 mi e South Fork (Quad. 29B4); along Eel River e of South Fork, Quad. 29B4 91 Comment
  CDA36065  Ceanothus thyrsiflorus CDFA Staff 1983-5-9 Humboldt Near South Jetty of Humboldt Bay. 0 Comment
  CAS-BOT-BC52867  Ceanothus velutinus Joseph P. Tracy 1932-7-17 10698 Humboldt Klamath Mountains - open ground at Corral Prairie 1524 Comment
  HSC98200  Ceanothus velutinus D. E. Anderson 1965-5-1 3591 Humboldt 6.3 mi N of Hoopa along Hwy. 96 Comment
  HSC55749  Ceanothus velutinus var. velutinus G. L. Clifton, Griswold 1979-7-26 10277 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CDA7085  Centaurea calcitrapa T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 miles south of Redcrest. 0 Comment
  UC1541642  Centaurea melitensis Harold E. Parks 1934-7-6 5117 Humboldt Jaqua-Yager Creek road Jaqua-Yager Creek 762 Comment
  CDA7303  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 Comment
  CDA7304  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 Comment
  UC1222949  Centaurea solstitialis Joseph P. Tracy 1943-11-28 17452 Humboldt near Alton (Eel River bar at mouth of Van Duzen); Eel River, Van Duzen Comment
  JEPS46366  Centaurium muehlenbergii Milo S. Baker 1923-7-12 3 Humboldt near Dyerville Comment
  UC562310  Centaurium muehlenbergii Joseph P. Tracy 1931-7-27 9602 Humboldt 6 mi e Carlotta; Van Duzen River 60 Comment
  JEPS113353  Centaurium tenuiflorum Jeff Greenhouse 2003-8-27 5117 Humboldt Hwy 101 Comment
  HSC72635  Cephalanthera austiniae J. P. Smith 1977-7-3 9248 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  HSC99829  Cephalanthera austiniae T. Jimerson, J. Pageau 1979-7-31 708 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  UC177241  Cerastium arvense Joseph P. Tracy 1912-6-9 3660 Humboldt Alton Northern Coast Region, Alton 30 Comment
  BLMAR609  Cerastium arvense Jennifer Anthony-Wheeler 2011-4-21 609 Humboldt King range, Above Smith gulch. Strawberry Rock. KRSR0004 243 Comment
  UC8223  Cerastium arvense H. N. Bolander 1867-1 6520 Humboldt E. Fork Eel R. Comment
  HSC98768  Cerastium fontanum subsp. vulgare Cara Witte 2007-8-8 621 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  HSC97943  Cerastium glomeratum Cara Witte 2007-6-28 384 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  UCD98070  Cerastium glomeratum Joseph P. Tracy 1948-4-11 17964 Humboldt South Fork Station, on Eel River. 48 Comment
  HSC60028  Cercis occidentalis M. A. Baker 1977-6-6 369 Humboldt Hoopa Comment
  HSC36776  Cercocarpus montanus var. glaber Brent Whitely 1975-7-10 154 Humboldt 198 Comment
  HSC99569  Chamaesyce serpillifolia subsp. serpillifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 234 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CDA30234  Chamaesyce serpyllifolia M. K. Beyers, I. Shepardson 2009-9-13 236 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
  HSC54860  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-7-25 10761 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC55098  Chamerion angustifolium subsp. circumvagum G. L. Clifton 1979-7-31 11811 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA53826  Chenopodium ambrosioides var. ambrosioides H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  JEPS59742  Chenopodium botrys W. L. Jepson 1936-8-12 17885 Humboldt Philipsville South Fork Eel River Comment
  RSA478470  Chenopodium botrys T. Gertrude Williamson 1924-7-16 s.n. Humboldt Lane s Flats; bed of Eel River. Comment
  UCD98277  Chenopodium macrospermum Malcolm A. Nobs; S. Galen Smith 1949-8-11 1340 Humboldt eastern shore of Stone Lagoon. Comment
  JEPS59734  Chenopodium pumilio W. L. Jepson 1932-7-26 16400 a Humboldt Bull Creek 106 Comment
  CAS-BOT-BC451380  Chimaphila menziesii L. B. Kildale 1930-8-10 10530 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC48860  Chimaphila umbellata Brad Klipfel 1973-7-31 251 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1197594  Chimaphila umbellata Joseph P. Tracy 1911-7-7 3421 Humboldt ridge n. of Willow Creek (between Willow & Campbell Creeks, Brannan Mt, near summit); Northern Coast Ranges, Brannan Mt. 1219 Comment
  UCD138429  Chlorogalum pomeridianum Joseph P. Tracy 1946-7-7 17611 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  UC404019  Chlorogalum pomeridianum var. pomeridianum P. E. Goddard 1901-7 11 Humboldt Hupa Comment
  RSA167191  Chrysanthemum segetum Joseph P. Tracy 1950-6-17 18831 Humboldt At Eureka. Comment
  RSA170226  Chrysosplenium glechomifolium Joseph P. Tracy 1918-4-28 4888 Humboldt At Eureka 0 Comment
  CAS-BOT-BC420345  Chrysosplenium glechomifolium Greg de Nevers 2001-4-19 12259 Humboldt Prarie Creek, Redwoods State Park 91 Comment
  JEPS15745  Cicuta douglasii Joseph P. Tracy 1925-7-5 7179 Humboldt near High Prairie (on Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC314585  Cicuta douglasii Joseph P. Tracy 1925-7-5 7179 Humboldt near High Prairie (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC98857  Circaea alpina subsp. pacifica Cara Witte 2008-7-30 974 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  JEPS59107  Cirsium arvense W. L. Jepson 1932-7-26 16403 Humboldt Bull Creek Comment
Read comments
Jan 17 2008
  SD113204  Cirsium arvense Darley F. Howe 1959-8-4 2800 Humboldt 78.5 miles west of Weavervilleon. Comment
  CAS-BOT-BC284440  Cirsium brevistylum L. R. Abrams 1916-7-18 6082 Humboldt Between Cercata and Trinidad Comment
  CDA1113  Cirsium brevistylum T. R. Haig, T. C. Fuller 1959-6-12 2791 Humboldt 5 mi. N/ Richardson Grove. 0 Comment
  CDA1114  Cirsium brevistylum T. R. Haig, T. C. Fuller 1959-6-12 2792 Humboldt 8 mi. N/ Trinidad. 0 Comment
  CDA1176  Cirsium cymosum T. R. Haig 1960-6-16 s.n. Humboldt Kneeland, near quarry. 0 Comment
  HSC98566  Cirsium cymosum var. cymosum Cara Witte 2008-7-30 981 Humboldt Horse Mountain Botanical Area. 1/4 mile east of intersection National Forest 1, and Forest Service Roads 6N36, 6N38. 1426 Comment
  UCD130610  Cirsium douglasii Gordon Leppig 1998-6-1 879 Humboldt Horse Mountain, Titlow Hill Rd. 1219 Comment
  CAS-BOT-BC285532  Cirsium occidentale var. candidissimum Doris K. Kildale 1928-6-24 5274 Humboldt Horse Mountain 914 Comment
  OBI36336  Cirsium occidentale var. candidissimum David J. Keil 1983-7-1 17273 Humboldt Ca 13 mi W of jctn US 101 along Bull Crk Flats Rd Comment
  CAS-BOT-BC286388  Cirsium occidentale var. venustum Doris K. Kildale 1926-5-16 1838 Humboldt Horse Mountain 1066 Comment
  UC1199256  Cirsium remotifolium Joseph P. Tracy 1921-7-10 5851 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC128736  Cirsium remotifolium var. odontolepis Harley P. Chandler 1901-6-1 1504 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC1223053  Cirsium remotifolium var. rivulare Joseph P. Tracy 1947-6-8 17711 Humboldt 5 mi e of town Carlotta (open flat by Strong's District School House) 60 Comment
  UC144096  Clarkia amoena Joseph P. Tracy Jun 27 1908-Jun 30 1908 2757 Humboldt nw slope Buck Mountain (at bridge across river); Northern Coast Ranges, Little Van Duzen River 609 Comment
  JEPS43630  Clarkia amoena subsp. huntiana W. L. Jepson 1902-7-29 2126 Humboldt Three Creeks to Willow Creek (summit of grade) 1066 Comment
  RSA0059979  Clarkia amoena subsp. whitneyi C. L. Hitchcock, J. S. Martin 1939-7-14 5432 Humboldt 1 mile east of Shelter Cove Comment
  UC20004  Clarkia concinna subsp. concinna Harley P. Chandler June, 1901 1325 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  RSA0060033  Clarkia gracilis subsp. sonomensis Harlan Lewis, M. Lewis 1947-6-13 423 Humboldt Highway 36 at South Fork of Van Duzen River (Bridge 4-119) Comment
  CAS-BOT-BC172501  Clarkia purpurea subsp. quadrivulnera Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  UC198877  Clarkia purpurea subsp. quadrivulnera Chesnut and Drew July 1888 Humboldt Campbell's Comment
  UC144068  Clarkia rhomboidea Joseph P. Tracy July, 1908 2763 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 762 Comment
  HSC104160  Claytonia exigua subsp. exigua Andrea Pickart 2002-4-3 44 Humboldt Lanphere Dunes 25 Comment
  SEINET200315  Claytonia exigua subsp. exigua J. P. Tracy 1926-4-3 7396 Humboldt Kneeland Prairie local Comment
  HSC73821  Claytonia lanceolata M. A. Baker 1980-7-19 3035 Humboldt Near Bret Hole. 1814 Comment
  HSC101982  Claytonia perfoliata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 879 Humboldt Patterson Meadows 1566 Comment
  SEINET6903113  Claytonia perfoliata Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  CAS-BOT-BC439933  Claytonia perfoliata subsp. mexicana Doris K. Kildale 1926-3-21 1583 Humboldt Kneeland Prairie - summit 853 Comment
  HSC79435  Claytonia perfoliata subsp. mexicana Kenneth Clark 1981-4-5 1227 Humboldt Dead Man's Gulch 69 Comment
  HSC39940  Claytonia rubra subsp. depressa Linda M. Barker 1976-3-22 1336 Humboldt 3 mi. W of Arcata Comment
  UC203566  Claytonia rubra subsp. depressa Joseph P. Tracy 1918-4-7 4861 Humboldt mouth of Strawberry Creek Northern Coast Ranges, Dows Prairie (Dows Prairie) 6 Comment
  HSC65469  Claytonia saxosa M. A. Baker 1980-6-8 1918 Humboldt Near Buck Flat. 1554 Comment
  HSC17738  Claytonia sibirica J. R. Eichelberger 1964-4-10 25 Humboldt 4 mi. above Blue Lake on Hwy. 299 Comment
  HSC31553  Claytonia sibirica Glenn McGourty 1974-5-11 43 Humboldt Along Maple Creek Rd. Comment
  HSC55276  Claytonia sibirica Overton, Butler 1979-8-2 12679 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC161049  Claytonia sibirica Joseph P. Tracy 1911-7-5 3326 Humboldt near mouth of Willow Creek (along Willow Creek, tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  CAS-BOT-BC92594  Clematis ligusticifolia Henry M. Pollard 1948-7-23 s.n. Humboldt Near Orleans. Comment
  JEPS60566  Clematis ligusticifolia Lincoln Constance 1934-6-18 898 Humboldt near S. Fork R.R. Station & P.O (border of N. Dyerville Flat); Bull Creek Region, W. Fork Eel R. Comment
  JEPS61596  Clintonia andrewsiana Lincoln Constance 1934-5-31 752 Humboldt South Fork Eel River, along n side of Bull Creek, w boundary of park to Grasshopper Peak (Squaw Creek) Road Bull Creek; Bull Creek Region, South Fork Eel River, Bull Creek Comment
  UC1134574  Clintonia andrewsiana A. E. Wieslander 1931-5-17 194 Humboldt Orick-Orleans Road 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
  UC179954  Clintonia andrewsiana Joseph P. Tracy 1914-5-17 4473 Humboldt between Ryans Slough and Freshwater Creek (at the Cumens Claim, region about Humboldt Bay); Northern Coast Region 304 Comment
  UCD139622  Clintonia andrewsiana T. E. Weier 1942-5-22 s.n. Humboldt near Dyerville, Highway 101. Comment
  CAS-BOT-BC499963  Clintonia uniflora Doris Kildale 1931-5-10 10688 Humboldt Snow Camp Comment
  CHSC79480  Coincya monensis Jim Belsher 1997-2-13 1 Humboldt Collected in the lot East Southeast of the Manila Community Services District sewage pump station. 6 Comment
  HSC97486  Collinsia grandiflora C. Witte 2007-5-8 10 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  SBBG27286  Collinsia grandiflora H. E. Parks, J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley (Larabee Valley) 762 Comment
  UC1196764  Collinsia grandiflora Harley P. Chandler May 1901 1251 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  UC169092  Collinsia grandiflora Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5673 Humboldt ridge w Hoopa Valley (Hoopa Mt summit); Hoopa Mtn, North Coast Ranges Comment
  JEPS26343  Collinsia heterophylla Joseph P. Tracy 1914-5-14 4464 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC604633  Collinsia parviflora Joseph P. Tracy 1938-6-13 15922 Humboldt Grouse Mountain, at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  HSC74418  Collomia grandiflora Gail Newton 1980-8-10 2040 Humboldt Near Blake Mtn. 1707 Comment
  HSC71793  Collomia heterophylla Gail Newton 1980-6-16 177 Humboldt Near Monks Camp 109 Comment
  UC774987  Collomia heterophylla Carl B. Wolf 1937-8-13 9214 Humboldt 8 mi e Hoopa Valley (on new road towards Trinity Summit); North Coast Range 1219 Comment
  HSC45828  Collomia heterophylla J. P. Smith, J. O. Sawyer 1973-5-12 6672 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  RSA125656  Collomia heterophylla E. K. Balls 1957-5-25 22604 Humboldt 8.1 mi. sw. from Dinsmores, State Hwy. 36. 823 Comment
  HSC57691  Collomia tracyi G. L. Clifton, Griswold 1979-7-25 10910 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  JEPS26241  Collomia tracyi Joseph P. Tracy 1927-6-12 8161 Humboldt Horse Mountain Northern Coast Ranges (in slide rock) 1066 Comment
  JEPS26242  Collomia tracyi Joseph P. Tracy 1932-7-12 10468 Humboldt head Brett Hole (in areas of disintegrated rock); Trinity Summit 1828 Comment
  CAS-BOT-BC180242  Comandra umbellata subsp. californica Joseph P. Tracy 1927-5-15 8038 Humboldt Trinity River Valley, near the S Fork 182 Comment
  UC562291  Convolvulus arvensis Joseph P. Tracy 1934-7-15 13407 Humboldt near Fields Landing; North Coast Ranges, around Humboldt Bay 6 Comment
  HSC67014  Conyza canadensis J. P. Smith 1971-10-9 4988 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC1196211  Coptis laciniata Joseph P. Tracy 1915-8-2 4663 Humboldt Northern Coast Ranges, Mouht of Lawrence Creek Lawrence Creek; Northern Coast Ranges, Lawrence Creek 152 Comment
Read comments
Jan 22 2014
  HSC16586  Corallorhiza maculata Doris K. Kildale 1926-5-2 1845 Humboldt Bald Mtn. road, between Bald Mtn. House and junction of Redwood Creek Road. Comment
  HSC99048  Corallorhiza mertensiana Cara Witte 2007-6-20 315 Humboldt National Forest 1. 1.5 miles south of Titlow Hill. 1439 Comment
  HSC37701  Corallorhiza striata A. Montalvo, J. D. Ackerman 1976-5-16 756 Humboldt 0.25 mi. E of State Hwy. 299 on Chezem Rd., W of Redwood Creek Valley Comment
  HSC95093  Cordylanthus maritimus subsp. palustris Andrea Pickart 2002-6-27 123 Humboldt Mad River Slough and Dunes, N of parking area at N end of access road. 0 Comment
  JEPS6786  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1924-7-20 6735 Humboldt Koby Ranch, on road between Willow Creek (an Three Creeks); Koby Ranch 609 Comment
  CAS-BOT-BC101142  Corethrogyne filaginifolia Joseph P. Tracy 1936-7-10 15046 Humboldt Vicinity of Carlotta 30 Comment
  UC1223036  Corethrogyne filaginifolia Joseph P. Tracy 1950-6-18 18764 A Humboldt 1 mi w of town Petrolia Comment
  CAS-BOT-BC212007  Cornus nuttallii John McLaren 1920-9-1 s.n. Humboldt Unspecified 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
  HSC97510  Cornus nuttallii Cara Witte 2007-5-21 72 Humboldt Along National Forest 1. Approximately 1 mile north of White Oak Opening. 1272 Comment
  UC1196901  Cornus nuttallii Joseph P. Tracy 1935-4-20 13786 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC1196902  Cornus nuttallii Joseph P. Tracy 1934-8-24 13597 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC212130  Cornus sericea H. E. McMinn 1922-8-5 348 Humboldt Along Van Duzen River Comment
  UC502981  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8654 Humboldt opposite Buck Mt. (on Van Duzen R., Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  RSA186851  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt 1100 acres, slope N above headquarters of Georgia Pacific Lumber Co. Comment
  CAS-BOT-BC180306  Corylus cornuta subsp. californica H. E. McMinn 1922-8-4 332 Humboldt Along Van Duzen River Comment
  HSC41356  Corylus cornuta subsp. californica Brad Klipfel 1974-8-2 505 Humboldt Horse Mtn. Comment
  HSC57139  Corylus cornuta subsp. californica Overton, Butler 1979-7-25 9919 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC65072  Corylus cornuta subsp. californica J. P. Smith, Steve Selva 1970-6-14 3856 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC667078  Crassula aquatica Joseph P. Tracy 1935-5-30 13919 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC48026  Crepis acuminata Brad Klipfel 1974-6-25 424 Humboldt Horse Mtn. Comment
  SD62065  Crepis capillaris Darley F. Howe 1965-8-7 Humboldt Orick Comment
  UC1199454  Crepis capillaris Joseph P. Tracy 1914-6-14 4501 Humboldt Carlotta Hydesvill (near Hydesville); Northern Coast Region 60 Comment
  UCSB30599  Crepis capillaris Edwards, David 1974-7-13 Humboldt SW. of intersection of Fickle Hill Rd. and Hill St., ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  UC581730  Crepis occidentalis Joseph P. Tracy 1935-7-30 14387 Humboldt Salmon Summit; at top 2112 Comment
  UC302296  Crepis pleurocarpa Joseph P. Tracy 1926-6-20 7621 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC42455  Crepis pleurocarpa Barbara Kelly 1977-7-16 540 Humboldt On Horse Mtn. Rd., 1/2 mi. below where it forks; 1.5 mi. below summit 1402 Comment
  CDA2722  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-3 17446 Humboldt Northwest corner of overpass of Hwy 101 freeway to Garberville, 1 miles south of Fields Landing. 0 Comment
  SEINET5261839  Crocosmia X crocosmiiflora Unknown 2002-8-22 86 Humboldt On Fischer Road just N of the Mad River. Comment
  HSC3566  Cryptantha affinis J. P. Tracy, H. E. Parks 1934-6-27 11059 Humboldt Grouse Mtn. Comment
  UC175786  Cryptantha torreyana J. P. Tracy 1903-5-22 1879 Humboldt Alder Point Bridge Eel River 152 Comment
  UC525609  Cryptantha torreyana Joseph P. Tracy 1933-7-25 12865 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  SEINET10531493  Cupressus macrocarpa Fred G. Meyer 1938-4-7 Meyer 1397 Humboldt About 20 miles north of Eureka Comment
  RSA640954  Cuscuta californica K. Thorne, P. C. Everett 1965-8-9 35305 Humboldt Big Lagoon 3 Comment
  UC35079  Cuscuta indecora Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  HSC57970  Cuscuta occidentalis G. L. Clifton, Griswold 1979-7-31 11699 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC902072  Cuscuta occidentalis Joseph P. Tracy 1949-8-4 18429 Humboldt Box Camp Trinity Summit 1463 Comment
  CHSC26301  Cynoglossum grande L. Greenhill 1977-4-5 8 Humboldt 15 ft. from highway 36 on n side, 3 miles w of Bridgeville. 182 Comment
  UC1103239  Cynosurus cristatus Joseph P. Tracy 1941-7-26 16969 Humboldt Eureka 30 Comment
  HSC37257  Cynosurus echinatus Lon Hall 1975-6-19 389 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  RSA246812  Cyperus eragrostis Robert F. Thorne 1965-9-19 35460 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  SEINET3909435  Cyperus eragrostis J. P. Smith, Advanced Plant Taxonomy Class 1971-10-9 4990 Humboldt The Mad River above the Fish Hatchery.; 0 Comment
  HSC97971  Cypripedium californicum Cara Witte 2007-6-21 316 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near mine area. 1283 Comment
  UC201998  Cypripedium montanum Joseph P. Tracy 1918-5-26 4937 Humboldt Redwood Creek Northern Coast Ranges, Grouse Mt. (at foot of mountain) 609 Comment
  HSC74128  Cystopteris fragilis R. York 1980-5-23 621 Humboldt Near Buck Mtn. 1524 Comment
  POM208983  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt The mouth of Bull Creek, Humboldt Redwood Park 46 Comment
  CAS-BOT-BC201008  Cytisus scoparius Henry M. Pollard 1947-8-26 s.n. Humboldt Near Orleans Comment
  SDSU10150  Cytisus scoparius Leslie Hickson 1990-4-15 15 IV90C Humboldt Oak Street across the road from the Freshwater park entrance. Eureka. Comment
  SEINET8477238  Cytisus scoparius D. Taylor 2011-5-4 21114 Humboldt Alderpoint Road in the vicinity of snowline fox farm (Larabee Valley 7 1/2 USGA quadrangle placename), vicinity of the road crossing of Knack Creek 341 Comment
  RSA730951  Dactylis glomerata Gary D. Wallace 1979-6-22 1851 Humboldt Eureka. Parking lot, 6 Rivers National Forest headquarters. Comment
  SBBG34665  Dactylis glomerata T. L. Secrest 1948-6-29 Humboldt southern Humboldt County [no specific locality] Comment
  CAS-BOT-BC189746  Danthonia californica Doris K. Kildale 1928-7-1 5308 Humboldt French Camp - Bald Hills - Orick Martins Ferry road. Comment
  HSC58653  Danthonia californica G. L. Clifton, Griswold 1979-7-31 11723 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UCD60465  Danthonia californica Mrs. Ida E. Varley 1915-7-27 s.n. Humboldt Ferndale. Comment
  UCD60501  Danthonia californica R. Tofsrud 1947-6-28 s.n. Humboldt Between Capetown and Ferndale. Comment
  UC184354  Danthonia californica var. americana Joseph P. Tracy 1912-6-9 3650 Humboldt Alton Northern Coast Region 30 Comment
  HSC98100  Danthonia unispicata Cara Witte 2007-6-20 306 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  UCD61358  Danthonia unispicata A. H. Murphy 1951-6-25 73 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  UCD61365  Danthonia unispicata Joseph P. Tracy 1951-6-26 19593 Humboldt North side of Board Camp Mountain at extreme head of Redwood Creek. Comment
  CHSC26758  Daucus carota M. S. Taylor 1977-8-5 1432 Humboldt Around bridge over Eeel River, at turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  HSC24780  Delairea odorata Barbara Kelly 1971-11-15 230 Humboldt North Bank Rd. next to Hwy. 101, McKinleyville Comment
  UC249647  Delphinium decorum subsp. tracyi Joseph P. Tracy May 14 1922-Jun 12 1922 6047 &6088 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UCR45825  Delphinium decorum subsp. tracyi N. Meiselman, M. Bransom, D. Brown, Ron Hildebrandt 1986-4-19 26 Humboldt North Coast Range, Horse Mountain, 0.5 mi. down Titlow Road from Ski Area 1372 Comment
  RSA79370  Delphinium decorum subsp. tracyi E. K. Balls, Lee W. Lenz 1952-5-12 17196 Humboldt 11.2 miles E along Hwy 36 from Bridgeville to Cobbs Comment
  HSC25008  Delphinium nudicaule J. Sandborg, F. Sandborg Jun 1968 16 Humboldt Bluff Creek near Notice Creek 793 Comment
  CAS-BOT-BC9956  Delphinium nudicaule Joseph Prince Tracy 1927-5-30 8084 Humboldt Near Briceland 243 Comment
  HSC98172  Delphinium nudicaule Allan R. Marshall 1962-5-11 9 Humboldt 50 yds. in front of N side of Hwy. 299 610 Comment
  HSC44763  Delphinium trolliifolium Maralyn O'Meara 1972-6-8 93 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UC60241  Deschampsia cespitosa subsp. holciformis Schmidt Humboldt Humboldt Bay Comment
  HSC40327  Deschampsia danthonioides Thomas W. Nelson, Jane P. Nelson 1976-6-22 2860 Humboldt Bog along road to Goat Hill. 1646 Comment
  CAS-BOT-BC201769  Deschampsia elongata H. E. Parks 1931-5-1 3646 a Humboldt Big Lagoon Comment
  HSC9613  Deschampsia elongata R. D. Rogers 1964-5-2 32 Humboldt Janes Creek area, 1 mi. N of Arcata, logging road. Comment
  HSC99038  Deschampsia elongata Cara Witte 2007-6-13 263 Humboldt Along Forest Service Road 5N04. Near spring by Grouse Mountain. 1583 Comment
  POM207195  Deschampsia elongata Jos Burtt Davy, W. C. Blasdale 1899-08 5516 B Humboldt Near Pepperwood Comment
  RSA293158  Deschampsia elongata J. P. Smith 1977-7-3 9245 Humboldt Six Rivers National Forest. Along the road to Onion Lake, just above Blue Lake. 976 Comment
  UC526673  Deschampsia elongata Joseph P. Tracy 1932-7-14 10552 Humboldt Corral Prairie, Trinity Summit, Klamath Mts. Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC534987  Deschampsia elongata H. E. Parks May 1931 3646 a Humboldt Big Lagoon Comment
  UC1225761  Descurainia incisa subsp. incisa Joseph P. Tracy 1947-8-24 17921 Humboldt near Box Camp (along trail to Water Dog Lakes); Trinity Summit 1676 Comment
  SEINET12103157  Dicentra formosa Unknown 1936-1 13351 Humboldt Comment
  CAS-BOT-BC402411  Dicentra formosa subsp. formosa Duart V. Brown 1947-3-29 19 Humboldt Tecwan Creek, Klamath River Comment
  UC1198175  Dichelostemma capitatum Joseph P. Tracy 1935-5-25 13894 Humboldt Dobbyn Creek 152 Comment
  HSC3082  Dichelostemma capitatum subsp. capitatum R. Spellenberg 1965-6-14 1121 Humboldt 2 mi. E of Kneeland, Kneeland Prairie Comment
  HSC24401  Dichelostemma ida-maia J. O. Sawyer 1970-6-24 2216 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  SEINET200696  Dichelostemma ida-maia J. P. Tracy 1901-6-23 1184 Humboldt Immediate vicinity of Eureka near Ryans Slough Hill 0 Comment
  JEPS25695  Dichelostemma ida-maia P. C. Hutchison 1961-5-22 2024 Humboldt ca 9.1 mi ne Klamath River bridge at Weitchpec (Klamath River canyon); Klamath River Canyon Comment
  JEPS5682  Dichelostemma ida-maia W. L. Jepson 1902-6 2132 Humboldt Three Creeks to Redwood Creek (near summit of grade) Comment
  RSA376820  Dichelostemma ida-maia Hutchinson 1927-5-1 s.n. Humboldt [No locality information provided] Comment
  SEINET3885618  Dichelostemma ida-maia D. E. Bright 1962-6-12 285 Humboldt Roadside, along Highway #96, 2 miles northeast of Orleans.; 0 Comment
  UCSB22162  Dichelostemma ida-maia Keefe, Joseph 1967-7-8 Humboldt Avenue of the Giants, 2.4 miles north of Miranda 121 Comment
  CAS-BOT-BC500982  Dichelostemma multiflorum Harley P. Chandler 1901-6-1 1310 Humboldt Hupa Indian Reservation 152 Comment
  POM48082  Digitalis purpurea J. B. Feudge 1923-7-18 105 Humboldt Eureka. About Humboldt Bay. 6 Comment
  HSC26885  Digitaria sanguinalis Brad Klipfel 1973-7-24 222 Humboldt Mad River flood plain, N end of Carson RR Bridge. Comment
  UC1145034  Digitaria sanguinalis Joseph P. Tracy 1942-9-13 17316 Humboldt Eureka 30 Comment
  CAS-BOT-BC150346  Diplacus aurantiacus Alice Eastwood 1907-4-21 6 Humboldt Trinidad Comment
  CAS-BOT-BC153235  Diplacus kelloggii Duart V. Brown 1947-4-2 33 Humboldt Near Sweed Creek, Trinity River Comment
  CAS-BOT-BC153240  Diplacus kelloggii Doris K. Kildale 1928-5-1 5985 Humboldt [MacLellan] McClellan Mountain 914 Comment
  UC535766  Disporum hookeri Eleanor Armstrong 1934-5-27 Humboldt Richardson Grove 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
  CDA18208  Distichlis spicata G. D. Barbe, T. C. Fuller 1974-6-17 1835 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  UC249802  Distichlis spicata Joseph P. Tracy 1923-6-19 6286 Humboldt Mouth of Davies Creek Comment
  UCD64363  Distichlis spicata var. stolonifera G. L. Stebbins Jr.; G. L. Church 1941-5-26 3104 Humboldt North end of city, Eureka. Comment
  SEINET201055 Image available Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Trinity Summit, Corral Prarie. 1585 Comment
  HSC17871  Dodecatheon hendersonii Elrid H. Spinas 1948-5-15 8 Humboldt Horse Mtn. 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
  UC602557  Downingia cuspidata Joseph P. Tracy 1935-5-25 13843 Humboldt Fort Seward 106 Comment
  UC602535  Downingia elegans Joseph P. Tracy 1923-6-20 6339 Humboldt Miranda 121 Comment
  JEPS14453  Downingia elegans Joseph P. Tracy 1927-7-17 8270 Humboldt Three Cabins, on lower w foothills of Chaparral Mountain North Coast Ranges, Chaparral Mountain 457 Comment
  HSC74471  Draperia systyla Gail Newton 1980-7-23 1739 Humboldt Near Packsaddle Ridge 1463 Comment
  UC1198847  Drosera rotundifolia Joseph P. Tracy 1924-7-4 6710 Humboldt Snow Camp Meadow Northern Coast Ranges 1371 Comment
  UC154498  Drymocallis glandulosa var. wrangelliana Mrs. M. H. Manning 1900-1 Humboldt Hoopa Comment
  HSC44528  Drymocallis lactea var. lactea Brad Klipfel 1973-7-1 136 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM118351  Dryopteris expansa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
Read comments
Dec 31 2015
  CAS-BOT-BC428295  Dudleya farinosa A. A. Heller 1934-7-10 16164 Humboldt At Moonstone Beach near Trinidad. Comment
  HSC97541  Dysphania ambrosioides Ivy Watson 2008-9-17 15 Humboldt Mad River Park on W End Rd., near pumping station 8 Comment
  HSC98715  Dysphania botrys Cara Witte 2007-8-1 617 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1/4 mile east of intersection with Friday Camp. 1297 Comment
  RSA751021  Dysphania multifida R. F. Thorne, P. Everett 1965-8-5 35157 Humboldt Samoa Dunes. 3 Comment
  UC212863  Echinochloa crus-galli Joseph P. Tracy 1920-8-15 5370 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges, Klamath River at Bluff Creek 152 Comment
  HSC99981  Ehrharta erecta Sydney Carothers 2009-3-5 Humboldt H. S. U campus, due N of the experimental greenhouse. 152 Comment
  UC666876  Eleocharis acicularis Joseph P. Tracy 1937-8-12 15626 Humboldt Lake Prairie Bald Mountain (edge of bog) 1066 Comment
  HSC90810  Eleocharis macrostachya Gail Newton 1982-6-10 3594 Humboldt Elk River Wildlife Area, Eureka Comment
  UC666918  Eleocharis macrostachya Joseph P. Tracy 1934-7-20 13464 Humboldt Big Lagoon, small farm on shore 3 Comment
  SEINET200968  Eleocharis obtusa Joseph P. Tracy 1911-7-7 3401 Humboldt 3 miles northwest of junction of Willow Creek with Trinity River and near Beebe's Ranch. 914 Comment
  UC1103669  Eleocharis obtusa Joseph P. Tracy 1931-9-7 9652 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC58814  Eleocharis quinqueflora G. L. Clifton, Griswold 1979-8-1 12054 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC36619  Elymus glaucus J. D. Ackerman 1974-5-25 256 Humboldt Trinidad, Trinidad Beach S of Trinidad Head. Comment
  HSC40394  Elymus glaucus Thomas W. Nelson, Jane P. Nelson 1976-7-26 3036 Humboldt Along ridge NW of Lassic Peak. 1707 Comment
  HSC9718  Elymus glaucus D. E. Anderson, T. O. Preston 1963-3-1 19 Humboldt Near bridge over Supply Creek. Comment
  RSA167303  Elymus glaucus Joseph P. Tracy 1951-7-5 19602 Humboldt along Long Valley Creek, southeast end of Long Valley. Comment
  JEPS72931  Elymus glaucus subsp. jepsonii Lincoln Constance 1934-5-23 612 Humboldt se slope of mt. above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  RSA10136  Elymus glaucus subsp. jepsonii Joseph P. Tracy 1933-8-6 12950 Humboldt French Camp Ridge. 1067 Comment
  HSC9728  Elymus mollis subsp. mollis E. W. Styskel 1964-5-7 82 Humboldt 2 miles S of Samoa near Samoa Rd. Comment
  UC38212  Elymus multisetus Joseph Burtt Davy 1899-6-19 5661 Humboldt Hoopa Mt. Comment
  UC1103291  Elymus trachycaulus A. H. Murphy 1949-7-22 Humboldt Bear River Ridge; at intersection of Monument Road 457 Comment
  UC1103292  Elytrigia repens Joseph P. Tracy 1937-7-17 15434 Humboldt Eureka 60 Comment
  HSC98714  Epilobium brachycarpum Cara Witte 2007-8-1 612 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC668304  Epilobium campestre Joseph P. Tracy 1938-7-5 16010 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  UC668305  Epilobium campestre Joseph P. Tracy 1938-7-5 16009 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  SBBG60143  Epilobium canum subsp. latifolium L. Rowntree 1931-7-21 Humboldt Mattole River Comment
  UC146137  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1909-7-4 3004 Humboldt Immediate vicinity of Eureka 0 Comment
  UC198608  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-8-20 4753 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC583078  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-10 14340 Humboldt 15 mi e Bridgeville; Little Van Duzen River Comment
  UC902177  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1947-7-5 17810 Humboldt near Box Camp (along stream); Trinity Summit 1463 Comment
  HSC49655  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4953 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1198494  Epilobium densiflorum Joseph P. Tracy 1942-6-15 17148 Humboldt along ditch in field Garberville 152 Comment
  UC562510  Epilobium hallianum Joseph P. Tracy 1933-7-25 12853 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  RSA181871  Epilobium hallianum Joseph P. Tracy 1932-7-14 10533 Humboldt Klamath Mountains, Trinity Summit; At Corral Prairie 1524 Comment
  UC314612  Epilobium hallianum Joseph P. Tracy 1923-5-13 6204 Humboldt Bridgeville Northern Coast Ranges 228 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
  UC160414  Epipactis gigantea Chesnut and Drew 1888-8-2 Humboldt Grouse Creek Comment
  CAS-BOT-BC58003  Equisetum Doris K. Kildale 1925-8-18 1253 Humboldt McKay's Prarie - Trinity Summit. 1524 Comment
  SEINET200606 Image available Equisetum hyemale J. P. Tracy 1926-9-6 7795 Humboldt Trinity River Valley near the S Fork 183 Comment
  UC1239788  Equisetum hyemale subsp. affine Joseph P. Tracy 1936-6-3 14844 Humboldt at Willow Creek Trinity River Valley 152 Comment
  UCD64457  Eragrostis pectinacea Collector Unknown 1946-11 Humboldt Orleans. Comment
  CAS-BOT-BC278517  Eragrostis pilosa var. pilosa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  SEINET11836158  Erechtites argutus H. E. Parks, Parks, S. T. 1937-1 24033 Humboldt Spruce Cove, Trinidad 61 Comment
  POM174069  Erechtites glomeratus Joseph P. Tracy 1918-9-1 5095 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
Read comments
Jun 10 2012
  CAS-BOT-BC299911  Erechtites minimus H. E. Parks 1931-9-1 1058 Humboldt Trinidad 76 Comment
  POM126125  Ericameria arborescens subsp. arborescens Joseph P. Tracy 1924-8-24 6827 Humboldt Trinity River Valley, near Willow Creek 183 Comment
  RSA46777  Erigeron Doris Kildale Gillespie 1937-8-26 15345 Humboldt Christmas Prairie. Comment
  CAS-BOT-BC293612  Erigeron biolettii Doris K. Kildale 1929-8-4 8777 Humboldt Mattole River at Union Mattole Comment
  UC204831  Erigeron biolettii Joseph P. Tracy 1918-7-6 5052 Humboldt near Humboldt-Mendocino County line (rock ledges along river); South Fork Eel River 152 Comment
  UC912295  Erigeron biolettii Herbert L. Mason 1928-7-14 4908 Humboldt near Garberville; East Fork Eel River Comment
  CAS-BOT-BC296112  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge 1066 Comment
  HSC32218  Erigeron foliosus var. confinis J. O. Sawyer 1970-6-24 2215 Humboldt Big Hill Rd., E of Hoopa 1189 Comment
  HSC35600  Erigeron foliosus var. confinis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2011 Humboldt Bald Hills Rd., just W of French Camp. Comment
  CAS-BOT-BC300677  Erigeron foliosus var. mendocinus Doris K. Kildale 1925-7-19 1046 Humboldt Bridgeville 228 Comment
  RSA167385  Erigeron foliosus var. mendocinus Joseph P. Tracy 1951-7-24 19625 Humboldt Blue Slide, on Van Duzen River 91 Comment
  RSA39091  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12360 Humboldt 1 mile west of Van Duzen Redwood State Park Comment
  POM289039  Erigeron glaucus Lyman Benson 1929-7-19 1850 Humboldt Mouth of Matole River. Comment
  HSC89429  Erigeron glaucus P. A. Daly 1984-6-16 31 Humboldt Open bluffs of Trinidad Head trail 61 Comment
  HSC97452  Erigeron klamathensis Cara Witte 2007-6-7 219 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  JEPS21941  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1936-6-17 14963 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, , Burr Valley 1066 Comment
  JEPS41377  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1934-5-8 16723 Humboldt Benbow, s Humboldt County South Fork Eel River, Benbow Comment
  UC1199399  Erigeron strigosus var. septentrionalis Joseph P. Tracy 1918-6-23 4959 Humboldt Boynton Prairie Road near the Carroll Place (around Humboldt Bay); North Coast Ranges, Fickle Hill 304 Comment
  HSC76606  Eriogonum compositum Teresa Prendusi 1981-7-21 280 Humboldt Near Whiteys Peak 1646 Comment
  HSC97965  Eriogonum compositum var. compositum Cara Witte 2007-6-20 308 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  HSC17296  Eriogonum latifolium R. I. Bonn 1965-5-7 25 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  SBBG64031  Eriogonum latifolium H. E. Parks -Aug-1941 24198 Humboldt Little River Comment
  SD117467  Eriogonum latifolium Robert F. Thorne 1974-7-29 45074 Humboldt Samoa Dunes Comment
  UC727179  Eriogonum latifolium A. A. Heller 1924-7-22 13873 Humboldt Samoa Comment
Read comments
Sep 29 2006
  UCR122372  Eriogonum latifolium George K. Helmkamp, E. A. Helmkamp 2001-7-8 7016 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC26917  Eriogonum latifolium Brad Klipfel 1973-7-30 220 Humboldt Samoa Rd. near Mad River Slough 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-BC259528  Eriogonum luteolum var. luteolum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  CAS-BOT-BC259542  Eriogonum luteolum var. luteolum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  UC55505  Eriogonum luteolum var. luteolum P. E. Goddard 1901-7-12 82 Humboldt Hupa Comment
  HSC35602  Eriogonum nudum var. nudum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2010 Humboldt French Camp, Bald Hills. Comment
  UCR32155  Eriogonum nudum var. nudum David J. Keil 1983-7-1 17272 Humboldt North Coast Range, Bull Creek Flats [Mattole] Road, c. 13 mi. west of junction with US Hwy 101 Comment
  CAS-BOT-BC267877  Eriogonum umbellatum Malcolm G. Smith 1966-6-1 s.n. Humboldt Horse Mountain Comment
  HSC72976  Eriogonum umbellatum D. K. Imper 1981-8-12 907 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  HSC74698  Eriogonum umbellatum Gail Newton 1981-7-24 2291 Humboldt Near Chaparral Mtn. 1512 Comment
  HSC55169  Eriogonum umbellatum var. stellatum Gilbert Muth 1979-8-1 12163 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC70697  Eriogonum umbellatum var. stellatum Gail Newton 1980-7-15 1556 Humboldt Near Sims Mtn. 1311 Comment
  HSC31448  Eriophorum crinigerum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5566 Humboldt Lower slopes of Black Lassic near Trinity Co. line 1585 Comment
  HSC71589  Eriophyllum lanatum M. A. Baker 1980-6-26 2394 Humboldt Near Sims Creek 610 Comment
  HSC73935  Eriophyllum lanatum Gail Newton 1980-6-28 680 Humboldt Near Mad River Butte. 1536 Comment
  JEPS34743  Eriophyllum lanatum var. achilleoides Lincoln Constance 1934-5-26 678 Humboldt s end of Dyerville Bridge (South Fork of Eel River); Bull Creek Region, South Fork Eel River 45 Comment
  UC582676  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1935-6-23 13999 Humboldt French Camp Ridge 1066 Comment
  HSC44133  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, Jane P. Nelson 1977-7-1 3579 Humboldt W side of road N from Alder Springs, head of N Fork of Conley Creek 1463 Comment
  UC165189  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1908-6-7 2609 Humboldt bluffs on river at mouth of Maple Creek; Northern Coast Ranges, Mad River 152 Comment
  RSA21076  Eriophyllum lanatum var. integrifolium C. B. Wolf 1937-8-13 9236 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  POM265904  Eriophyllum lanatum var. lanceolatum R. C. Rollins, Lincoln Constance 1942-5-12 2890 Humboldt Klamath River 12 miles north of Weitchpee 122 Comment
  UC727166  Eriophyllum staechadifolium A. A. Heller 1924-7-23 13878 Humboldt between Little River and Trinidad Comment
Read comments
Sep 29 2006
  UC1199177  Erysimum capitatum Joseph P. Tracy 1927-6-12 8149 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  HSC45085  Erysimum capitatum var. capitatum R. Sutherland 1978-4-23 16 .23478 Humboldt Kinsey (Fraser) Ridge near head 732 Comment
  HSC28486  Erysimum menziesii J. D. Ackerman 1973-3-27 54 Humboldt 1.5 mi. S of Samoa, alongside Hwy. Comment
  JEPS53584  Erysimum menziesii Joseph P. Tracy 1904-4-24 2031 Humboldt sand dunes of ocean beach Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC383051  Erythranthe guttata David B. Lowry 2005-5-16 PCK Humboldt Along Kneeland road, east of Slater Road 709 Comment
  UC3606  Erythronium californicum C. C. Marshall April, 1888 Humboldt Hoopa Valley Comment
  CAS-BOT-BC504308  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC504309  Erythronium californicum Frank W. Gould 1939-5-30 826 Humboldt Top of Horse Mountain 1219 Comment
  HSC98747  Erythronium grandiflorum Cara Witte 2008-6-2 664 Humboldt National Forest 1. 2 miles south of intersection with Forest Service Road 5N09. 1588 Comment
  UC666965  Erythronium grandiflorum Joseph P. Tracy 1933-7-16 12774 Humboldt openings in forest near McKay Camp; South Fork Mountain 1676 Comment
  HSC70227  Erythronium grandiflorum subsp. grandiflorum M. A. Baker 1980-6-8 1890 Humboldt Near Buck Flat. 1554 Comment
  HSC15498  Erythronium oregonum subsp. leucandrum Eugene Andreuccetti 1964-5-2 45 Humboldt 30 yds. from Cedar Creek along Hwy. 299 Comment
  HSC95188  Erythronium revolutum Gordon Leppig, Tony LaBanca 2003-5-23 1947 Humboldt PalCo land, Kneeland, THP 1-01-359HUM 720 Comment
  HSC23676  Eschscholzia californica Tim Baroni 1971-7-6 111 Humboldt 1 mi. S of Ferndale on the Mattole Rd. Comment
  HSC97441  Eschscholzia californica Ivy Watson 2008-10-5 45 Humboldt Blue Lake, 500 m upstream of the Hatchery Rd. bridge. 22 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
  JEPS20485  Euchiton gymnocephalus Joseph P. Tracy 1935-7-20 14110 Humboldt near Blue Lake (on Trinity Highway); North Coast Ranges, Trinity Highway 274 Comment
  CDA15444  Euchiton gymnocephalus R. Spadoni 1998-8-15 s.n. Humboldt North Coast; Eureka. Comment
  HSC5686  Euchiton gymnocephalus David Adams 1960-7-15 Humboldt Near Azalea Reserve State Park 30 Comment
  UC552229  Euchiton sphaericus Joseph P. Tracy 1935-9-1 14752 Humboldt near Dyerville; Northern Coast Ranges 91 Comment
  HSC103276  Euonymus occidentalis Melinda Bailey 2014-10-8 Humboldt Kneeland, along Freshwater Creek. 762 Comment
  UC1071562  Euonymus occidentalis var. occidentalis R. Stahelin 1933-8-9 Humboldt Rohner Creek, <Holmes Eureka Land> Rohnerville Quad., Rohner Creek Comment
  UC30135  Euonymus occidentalis var. occidentalis W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  HSC8002  Euphorbia crenulata Lincoln Constance 1934-5-24 646 Humboldt S Fork Eel River 122 Comment
  CDA20172  Euphorbia oblongata P. Haggard 2003-6-24 PDR 069699 Humboldt Northwestern California; Horse Mtn. 0 Comment
  HSC8018  Euphorbia peplus W. Schocker 1937-3-18 Humboldt Mad River Comment
  HSC31736  Euphorbia peplus Donald Spalinger 1974-4-20 16 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  CDA20238  Euphorbia virgata B. Freeman 2003-11-19 PDR 141766 Humboldt North Coast Ranges; Hwy 96 at mouth of Camp Creek near Orleans. 0 Comment
  UC198587  Eurybia radulina Joseph P. Tracy 1917-9-2 4843 Humboldt Grouse Mountain 1524 Comment
  UC1223175  Euthamia occidentalis Joseph P. Tracy 1949-9-1 18538 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC41382  Festuca occidentalis J. O. Sawyer 1970-6-27 2304 Humboldt Site 318. 1494 Comment
  HSC72634  Festuca occidentalis J. P. Smith 1977-7-3 9249 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  POM126170  Festuca occidentalis Joseph P. Tracy 1900-5-22 796 Humboldt Immediate vicinity of Eureka. 0 Comment
  RSA256712  Festuca occidentalis D. E. Anderson 1972-6-20 5723 B Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  UC519702  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt near Bridgeville; Van Duzen River Comment
  HSC65107  Festuca rubra J. P. Smith 1970-6-7 3800 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  RSA126631  Festuca rubra H. S. Yates 1936-6-17 5691 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC1145216  Festuca rubra Joseph P. Tracy 1938-7-4 15986 Humboldt Valley of South Yager Creek 762 Comment
  POM111919  Festuca subuliflora H. P. Chandler 1901-05 1179 Humboldt Humboldt Bay. 30 Comment
  HSC72767  Fragaria chiloensis Therese Glowacki 1981-4-12 20 Humboldt .6 km. W of Centerville Rd., 1.6 km. S of Centerville, 9.6 km. SW of Ferndale 4 Comment
  HSC70357  Fragaria vesca M. A. Baker 1980-6-7 1866 Humboldt Near Ammon Creek 732 Comment
  HSC89552  Fragaria vesca M. Roantree 1985-4-25 12 Humboldt E side of Trinidad Head Comment
  CAS-BOT-BC457930  Fragaria vesca subsp. californica Joseph P. Tracy 1932-7-15 10578 Humboldt Near Corral Prairie; Trinity Summit; Klamath Mountains 1524 Comment
  CAS-BOT-BC52733  Frangula californica subsp. californica L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  CAS-BOT-BC59999  Frangula purshiana C. B. Wolf 1931-8-30 2373 Humboldt E. side of Eureka on P. St., one block n. of Henderson St. 30 Comment
  UCD112832  Frangula purshiana T. I. Storer 1931-7-1 2219 Humboldt northwest coast of county. Comment
  RSA46909  Fraxinus latifolia Doris K. Kildale 1926-6-27 2229 Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road 640 Comment
  UC1198635  Fraxinus latifolia Joseph P. Tracy 1942-6-2 17106 Humboldt Valley of South Yager Creek 762 Comment
  UC1541354  Fritillaria W. K. Parks July 1933 1399 Humboldt South Fork Mountain Comment
  CAS-BOT-BC136030  Fritillaria affinis Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbell Comment
  UC1197623  Fritillaria affinis Joseph P. Tracy 1936-7-7 16042 Humboldt Grouse Mountain 1524 Comment
  RSA304286  Fritillaria affinis James R. Shevock 1972-3-27 1479 Humboldt Bear River Valley near Cape Mendocino 152 Comment
  UC1225860  Fritillaria affinis Joseph P. Tracy 1947-4-27 17674 Humboldt Table Bluff, on Tompkins Hill Road Table Bluff; , Tompkins Hill Road 152 Comment
  HSC67208  Fritillaria recurva Thomas W. Nelson, James Nelson 1980-6-10 5436 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC67178  Galium ambiguum Thomas W. Nelson, James Nelson 1980-6-10 5429 Humboldt Along E side of Red Mtn. 1372 Comment
  UC1196103  Galium aparine Joseph P. Tracy Jul 16 1930-Jul 19 1930 9048 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  JEPS6703  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  CDA6673  Galium divaricatum T. C. Fuller 1958-6-17 603 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC38079  Galium muricatum Thomas W. Nelson, James Nelson 1976-5-30 2628 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC61722  Galium porrigens var. porrigens Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  UC602544  Galium trifidum Joseph P. Tracy 1934-7-2 13287 Humboldt mouth Little River 6 Comment
  BLMAR418  Galium trifidum subsp. columbianum Jennifer Wheeler August, 2007 418 Humboldt South Spit, growing on East side near bay 9 Comment
  HSC19780  Galium triflorum Jana Kattenhorn 1970-10-19 86 Humboldt Up Jolly Giant Creek from dorms Comment
  HSC41594  Galium triflorum Thomas W. Nelson, Jane P. Nelson 1977-7-1 3554 Humboldt 1494 Comment
  HSC79426  Galium triflorum Kenneth Clark 1980-3-22 526 Humboldt Shelter Cove, on slope above Dead Man's Gulch 122 Comment
  CAS-BOT-BC303391  Gamochaeta ustulata Joseph P. Tracy 1936-5-30 14834 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  CHSC68553  Gamochaeta ustulata Vernon H. Oswald 1997-4-29 8358 Humboldt Coastal Dunes. Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  UC1199344  Gamochaeta ustulata Joseph P. Tracy 1934-6-19 13232 Humboldt Carlotta 60 Comment
  UC1199354  Gamochaeta ustulata Joseph P. Tracy 1917-7-8 4828 Humboldt Kneeland Prairie Road 457 Comment
  HSC37838  Garrya buxifolia Thomas W. Nelson, Jane P. Nelson 1976-2-21 2246 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. W of Hoopa Comment
  CAS-BOT-BC188536  Garrya elliptica J. P. Tracy 1901-4-14 1030 Humboldt Sand Hills of Ocean Beach at Samoa, opposite Eureka Comment
  HSC36442  Garrya elliptica J. P. Smith 1976-1-25 8506 Humboldt End of Murray Rd. Comment
  HSC8389  Garrya elliptica Francis Winter 1960-2-28 Humboldt Samoa Peninsula 6 mi. W of Arcata, Ca Comment
  UC1196888  Garrya elliptica Joseph P. Tracy 1924-1-20 6595 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region 6 Comment
  UC183578  Garrya elliptica Joseph P. Tracy 1913-3-2 4011 Humboldt Eureka; Northern Coast Region 0 Comment
  UC634769  Garrya elliptica H. L. Mason 1932-7-21 7105 Humboldt Big Lagoon Comment
  UCSB72519  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  POM207448  Gastridium phleoides Joseph P. Tracy 1900-9-9 951 Humboldt Bar of Yager Creek, near Hydesville. 61 Comment
  SEINET200332 Image available Gastridium phleoides J. P. Tracy 1912-7-26 3824 Humboldt Kneeland Prairie Comment
  UC185004  Gastridium ventricosum Joseph P. Tracy 1912-7-26 3824 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC22525  Gaultheria shallon Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC7818  Gaultheria shallon C. B. Wolf 1927-8-22 804 Humboldt 1 mi. S of Orick, on hills near ocean Comment
  HSC89510  Gaultheria shallon M. Roantree 1985-4-25 3 Humboldt E side of Trinidad Head. Comment
  RSA506992  Gaultheria shallon W. K. Parks 1932-06 1404 Humboldt Vicinity of Trinidad. Comment
  UC484078  Gaultheria shallon Carl B. Wolf 1930-10-30 Humboldt 4 mi s of Thorn (Old Coast Road); Old Coast Road 304 Comment
  SEINET11974899  Gaultheria shallon Unknown 1936-1 13376 Humboldt nr. Fieldsfandring Comment
  JEPS27564  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9051 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  POM247151  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt North Coast Ranges: Grouse Mountain 1524 Comment
  HSC40848  Gayophytum humile Thomas W. Nelson 1976-7-9 3002 Humboldt W side of ridge S of E peak of Mount Lassic group 1524 Comment
  UC1198639  Gentiana affinis var. ovata Joseph P. Tracy 1913-9-9 4401 Humboldt prairies at s end Big Lagoon; Northern Coast Ranges 30 Comment
  RSA256968  Gentiana oregana Gary D. Wallace 1975-8-22 1487 Humboldt Northwest of Trinidad, on level area back from bluff edge Megwil Point, Elk Head. Comment
  HSC44735  Gentiana sceptrum Maralyn O'Meara 1971-10-25 50 Humboldt S side of Big Lagoon Comment
  UC153981  Gentiana sceptrum J. P. Tracy 1906-7-1 2516 Humboldt immediately vicinity Eureka 0 Comment
  UC562303  Gentiana sceptrum Joseph P. Tracy 1924-8-3 6768 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1197398  Geranium carolinianum Joseph P. Tracy 1914-10-11 4633 Humboldt Eureka Northern Coast Region 0 Comment
  HSC45616  Geranium carolinianum Diane L. Reed 1978-5-7 46 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  UC179955  Geranium carolinianum Joseph P. Tracy 1914-5-14 4436 Humboldt Fort Seward Northern Coast Region 121 Comment
  CAS-BOT-BC457031  Geum macrophyllum Volney Rattan 1883-3-6 s.n. Humboldt Unspecified Comment
  CHSC31278  Gilia capitata Mark Stopher 1980-5-28 75 Humboldt Along Rte 169, 7.5 mi w of Martins Ferry Bridge. Comment
  BLMAR433  Gilia capitata subsp. pacifica Jennifer Anthony-Wheeler 2008-6-13 433 Humboldt King range, growing in Prosper Prairie near hdwaters of Mill Creek 624 Comment
  RSA63402  Gilia capitata subsp. pacifica C. B. Wolf 1939-7-8 9519 Humboldt Devil's Gate, south of Cape Mendocino. 8 Comment
  HSC48774  Gilia millefoliata Brad Klipfel 1975-5-22 623 Humboldt Near city of Eureka airport S of Samoa Comment
  JEPS86031  Gilia millefoliata Joseph P. Tracy 1936-5-30 14833 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, , near Samoa 6 Comment
  UC1197908  Gilia millefoliata Joseph P. Tracy 1946-6-2 17554 Humboldt sand dunes near Samoa; on Humboldt Bay, near Samoa 6 Comment
  UC198642  Gilia millefoliata Joseph P. Tracy 1917-5-30 4794 Humboldt Little River Beach , Little River Beach (Northern Coast Ranges) 6 Comment
  JEPS76828  Glaux maritima L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4806 Humboldt 1.2 mi n Eureka Bridge; Samoa Peninsula Comment
  UC642340  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1927-6-26 8207 Humboldt Stone Lagoon 6 Comment
  BLMAR401  Glyceria elata Clara Sander June, 2005 401 Humboldt Jacoby creek, Jacoby Creek Land Trust, along trail 36 Comment
  HSC74756  Glyceria elata Gail Newton 1981-8-6 2402 Humboldt Near Humbug Creek 1256 Comment
  UCD85137  Glyceria elata Francia Chisaki; Helen K. Sharsmith 1959-8-22 4756 Humboldt Inner North Coast Ranges. In bog at Happy Camp adjacent to Douglas Fir forest. Just over Trinity County line. 914 Comment
  UC1145104  Glyceria grandis Joseph P. Tracy 1936-6-28 15024 Humboldt Lake Prairie; Bald Mountain 1066 Comment
  CAS-BOT-BC282840  Glyceria striata H. P. Chandler 1901-6-1 1526 Humboldt Klamath River 426 Comment
  HSC74433  Glyceria striata Gail Newton 1980-8-10 2063 Humboldt Near Blake Mtn. 1707 Comment
  HSC99053  Glyceria striata Cara Witte 2008-7-25 931 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1.5 mile north of intersection with Forest Service Road 5N39. 1473 Comment
  RSA168834  Gnaphalium canescens subsp. thermale Joseph P. Tracy 1942-8-30 17303 Humboldt Humboldt County: Trinity River Valley, at Willow Creek. 152 Comment
  UC204751  Gnaphalium palustre Joseph P. Tracy 1918-7-5 5012 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  UC630460  Gnaphalium palustre H. E. and S. T. Parks 1937-8-1 24080 Humboldt Spruce Cove Northwestern California, Trinidad, Spruce Cove Comment
  SD39800  Gnaphalium purpureum Edith A. Purer 1932-7-30 4676 Humboldt South of Orick Comment
  CDA20601  Gnaphalium ramosissimum B. Freeman 2005-10-25 PDR 1368985 Humboldt Klamath Ranges; Tully Creek Rd, Weitchpec. 0 Comment
  RSA638984  Gnaphalium stramineum Percy C. Everett 1965-8-6 35171 Humboldt Samoa Dunes. 3 Comment
  HSC100579  Godetia purpurea Carl C. Marshall Jun 1886 295 Humboldt Pine Creek. Comment
  UC1196435  Goodyera oblongifolia Joseph P. Tracy 1934-8-31 13642 Humboldt Kneeland Prairie 762 Comment
  RSA20797  Goodyera oblongifolia Carl B. Wolf 1937-8-13 9262 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  CAS-BOT-BC304731  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt Northern Coast Ranges. Near Garberville 121 Comment
  HSC79363  Grindelia hirsutula Kenneth Clark 1980-5-10 655 Humboldt S-facing bluffs of Point Delgada 8 Comment
  HSC90778  Grindelia hirsutula Peter Sorensen 1976-6-28 Humboldt Woodley Island Comment
  JEPS30544  Grindelia hirsutula Peter H. Raven, R. Snow 1958-7-21 13659 Humboldt Cape Mendocino Cape Mendocino (on exposed coastal bluffs) Comment
  UC204829  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt near Garberville (in dry field) 121 Comment
  UC1552453  Grindelia hirsutula R. D. Goeden 1987-9-2 21 Humboldt on bank above Mattole Road; Cape Mendocino (Cape Ridge) 182 Comment
  POM359112  Grindelia stricta var. platyphylla M. B. Dunkle 1936-8-18 4813 Humboldt South of Eureka. 91 Comment
  CDA6170  Grindelia stricta var. stricta T. C. Fuller 1961-9-27 7043 Humboldt 1 mile north of Indianola Road, Highway 101, 5 miles north of Eureka. 0 Comment
  UC201390  Guillenia lasiophylla Joseph P. Tracy 1918-5-1 4907 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC31453  Hackelia bella D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC56456  Hackelia bella Griswold, Butler 1979-7-12 7233 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC525565  Hackelia bella Joseph P. Tracy Jul 16 1930-Jul 19 1930 9023 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  RSA249328  Hackelia bella D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  CAS-BOT-BC508213  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Wet or seepy ground, serpentine formation, Horse Mountain 1463 Comment
  CAS-BOT-BC306617  Helenium bigelovii Ira L. Wiggins 1930-7-8 4676 Humboldt Along the Eel River, near Scotia Comment
  UC582669  Helenium bigelovii Joseph P. Tracy 1930-7-16 8936 Humboldt wet meadow at McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC306863  Helenium bolanderi Doris K. Kildale 1927-6-26 3592 Humboldt Patrick's Point Comment
  HSC5768  Helenium bolanderi H. E. Parks, J. P. Tracy 1937-6-16 15431 Humboldt Trinidad 61 Comment
  CAS-BOT-BC309413  Helenium puberulum E. R. Johnson 1929-8-1 1431 Humboldt Along the Redwood Highway, south of Eureka 30 Comment
  UC525571  Heliotropium curassavicum Joseph P. Tracy 1927-6-26 8210 Humboldt Stone Lagoon Northern Coast Region, Stone Lagoon 6 Comment
  UC582404  Hemizonella minima Joseph P. Tracy 1929-7-4 8631 Humboldt French Camp Ridge 1066 Comment
  UC582405  Hemizonella minima Joseph P. Tracy 1930-6-16 8958 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CDA30696  Hemizonia congesta M. K. Beyers, I. Shepardson 2009-9-13 248 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  CAS-BOT-BC306036  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-9-1 9174 Humboldt Northern Coast Ranges. Miranda; along South Fork of Eel River 121 Comment
  UC127611  Hemizonia congesta subsp. tracyi Harley P. Chandler 1901-5-28 1245 Humboldt Tom Bair's North Coast Ranges, Redwood Creek 152 Comment
  CHSC31319  Heracleum lanatum Mark Stopher 1980-6-4 89 Humboldt Occasional in dike off upland habitat along Elk River near Rte 101 Bridge. 1 Comment
  HSC36432  Heracleum maximum John Rehling 1974-7-8 4 Humboldt County park at Big Lagoon Comment
  HSC13056  Hesperocyparis macrocarpa C. E. Fellows 1970-12-7 369 Humboldt HSC Campus, Arcata Comment
  SEINET10460657  Heterocodon rariflorum Tracy TRACY 17158 Humboldt GARBERVILLE 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
  UC154509  Heteromeles arbutifolia P. E. Goddard 1901-7-9 48 Humboldt Hupa Comment
  HSC5311  Heterotheca oregona Paul Shields Aug 1955 Humboldt 1 mi. N of Weott Comment
  UC480921  Heterotheca oregona var. compacta Harley P. Chandler 1901-6-1 1430 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  HSC20194  Heuchera micrantha P. N. Slattery 1963-4-27 44 Humboldt Clam Beach Comment
  HSC33081  Heuchera micrantha Thomas W. Nelson, J. D. Ackerman 1974-5-14 1269 Humboldt Baker Beach, 4 mi. S of Trinidad Comment
  HSC79434  Heuchera micrantha Kenneth Clark 1981-4-5 1228 Humboldt Above S fork Dead Man's Gulch 114 Comment
  UC1198860  Heuchera micrantha Joseph P. Tracy 1911-6-4 3228 Humboldt along Little River (5 mi from the coast); Northern Coast Region 121 Comment
  HSC20195  Heuchera micrantha J. F. Knezevich 1968-5-21 451 Humboldt 15 mi. E of jct. of Hwy. 299 with Hwy. 101, past Blue Lake Comment
  UC1198857  Heuchera micrantha var. diversifolia Joseph P. Tracy 1933-5-9 12163 Humboldt Trinidad 3 Comment
  JEPS49746  Heuchera micrantha var. diversifolia Harley P. Chandler May 1901 1231 Humboldt North Coast Ranges 457 Comment
  SEINET192937  Heuchera micrantha var. erubescens L. Constance, RC Rollins 1942-5-12 2883 Humboldt Mouth of Bluff Cr 6 mi NE of Weitchpec Klamath-Siskiyou Region 152 Comment
  SEINET207134  Heuchera parvifolia J. P. Tracy 1951-6-14 19416 Humboldt East side of Snow Camp Meadows Comment
Read comments
Jul 16 2018
  HSC56073  Heuchera rubescens G. L. Clifton, Griswold 1979-7-31 11744 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC57620  Hieracium albiflorum G. L. Clifton, Griswold 1979-7-25 10746 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC312392  Hieracium albiflorum Doris K. Kildale 1925-8-17 1196 Humboldt Triity Summit 1828 Comment
  HSC31198  Hieracium albiflorum D. E. Anderson 1972-6-20 5756 Humboldt Along the N slope of Horse Mtn. Comment
  POM311256  Hierochloe occidentalis Keith C. Hughes 1961-2-3 327 Humboldt Richardson Grove State Park; Coast Ranges Mt. Range 137 Comment
  UC187263  Hierochloe occidentalis J. P. Tracy 1901-8-1 1237 Humboldt woods near Rohnerville 91 Comment
  HSC90661  Hippuris vulgaris Gail Newton 1982-6-10 3638 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC26474  Hippuris vulgaris John R. Keith 1973-5-9 Humboldt 300 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  HSC28191  Hippuris vulgaris John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  UC1103731  Holcus lanatus J. P. Tracy 1901-4-7 1012 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC1103732  Holcus lanatus Joseph P. Tracy 1934-7-2 13295 Humboldt Trinidad 3 Comment
  POM203237  Holcus lanatus M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  CAS-BOT-BC149897  Holodiscus discolor Joseph P. Tracy 1933-8-30 13031 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC149901  Holodiscus discolor Doris K. Kildale 1926-9-5 2658 Humboldt Lasseck's Peaks, Signal Peak 1791 Comment
  HSC56316  Holodiscus discolor Overton, Butler 1979-8-2 12655 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC58004  Holodiscus discolor G. L. Clifton, Griswold 1979-7-31 11789 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC79463  Holodiscus discolor Kenneth Clark 1980-6-14 663 Humboldt Along access trail to Dead Man's Gulch. 107 Comment
  HSC89452  Holodiscus discolor P. A. Daly 1986-3-12 86 Humboldt Trinidad Head 61 Comment
  SDSU9079  Holodiscus discolor D. F. Howe 1961-8-1 3115 Humboldt 3.3 miles north of Trinidad on #101. Comment
  UCSB24337  Holodiscus discolor var. discolor Tracy, Joseph 1936-8-7 Humboldt Trinity summit, 2 miles southeast of Devil's Hole Comment
  SEINET3351072 Image available Hordeum Joseph P. Tracy 1942-1 Humboldt Frequent in moist grassy meadow. 91 Comment
  HSC39908  Hordeum brachyantherum J. P. Smith, Steve Selva 1970-6-30 4109 Humboldt Comment
  RSA10124  Hordeum brachyantherum subsp. californicum Joseph P. Tracy 1933-6-6 12508 Humboldt Trinidad 9 Comment
  RSA87057  Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt About Humboldt Bay, Mouth of Elk River. 3 Comment
  HSC23405  Hordeum marinum subsp. gussoneanum Jeff Blake 1971-11-15 Humboldt Bear Ridge area, near Petrolia. Comment
  CDA25952  Horkelia tridentata subsp. flavescens G. Levy, S. March 2005-6-24 15 Humboldt Northwestern California Comment
  CAS-BOT-BC206123  Hosackia crassifolia Clarence R. Quick 1959-7-24 59 -37 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  SBBG3399  Hosackia crassifolia var. crassifolia H. and M. Dearing 1939-5-24 3418 Humboldt pass, Dyerville-Mattole Rd Comment
  JEPS1637  Hydrophyllum tenuipes Joseph P. Tracy 1918-6-16 4954 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC53870  Hypericum anagalloides Griswold, Butler 1979-7-10 6350 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC502936  Hypericum anagalloides Joseph P. Tracy 1932-7-16 10607 Humboldt Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  CAS-BOT-BC400793  Hypericum anagalloides C. L. Hitchcock; J. S. Martin 1939-7-14 5442 Humboldt 7 miles east of Shelter Cove 243 Comment
  UC1198410  Hypericum anagalloides Joseph P. Tracy 1913-6-1 4076 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC1222165  Hypericum concinnum Joseph P. Tracy 1950-5-24 18688 Humboldt where Knight's Valley enters Alexander Valley (and leaves Muyacama Creek) Comment
  HSC57046  Hypericum perforatum Overton, Butler 1979-7-24 9695 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC420732  Hypericum perforatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5715 Humboldt Hoopa Valley North Coast Ranges, Hoopa Valley Comment
  RSA424593A  Hypericum perforatum T. S. Elias, Barbara A. Elias 1987-8-26 10630 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge. Comment
  SEINET10755374  Hypericum perforatum J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13015 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  HSC99605  Hypericum scouleri Jimerson, J. Pageau 1979-8-10 722 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC100106  Hypochaeris radicata A. Montalvo 1975-5-24 271 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  CAS-BOT-BC206836  Iliamna latibracteata L. B. Kildale 1930-8-10 10535 Humboldt Snow Camp, head of Redwood Creek Comment
  SEINET200732  Ipomopsis aggregata J. P. Tracy 1932-7-12 10440 Humboldt Trinity summit at Corral Prairie 1585 Comment
  CHSC68561  Iris douglasiana Vernon H. Oswald 1997-4-29 8355 Humboldt Humboldt Bay NWR, Hookton Slough Trail on the levee along the south side of Hookton Slough. 0 Comment
  HSC95676  Iris douglasiana Steven Lee 2004-4-11 12 Humboldt Westhaven offramp on Hwy. 101, N up Scenic Drive, on Houda Pt. Comment
  JEPS17225  Iris douglasiana Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  HSC13869  Iris douglasiana W. A. Heaton 1965-4-10 22 Humboldt 0.5 mi. N of Trinidad State Park Comment
  RSA135819  Iris douglasiana E. K. Balls 1957-5-25 22606 Humboldt 0.5 miles west of Bridgeville, along Van Duzen River, State Highway 36 122 Comment
  RSA135856  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-8 16510 Humboldt 21.2 miles south of Scotia, Highway 101 Comment
  UC1174761  Iris douglasiana L. W. Lenz and E. K. Balls 1951-5-8 16508 Humboldt 14.7 mi n Trinidad (Hwy 101) 6 Comment
  UC1193099  Iris longipetala P. Zinke 1950-10-11 188 Humboldt 4 mi se Punta Gorda; Lake Ridge 243 Comment
  UC1196391  Iris macrosiphon Joseph P. Tracy 1930-5-25 8709 Humboldt Larrabee Valley 731 Comment
  UC14927  Iris macrosiphon P. E. Goddard 1901-7-8 30 Humboldt Hupa Comment
  UC427883  Iris purdyi H. E. Parks 1930-5-25 853 Humboldt Laribee Valley Comment
  SD112455  Iris purdyi darley F. Howe 1972-5-6 4832 Humboldt 1.5 miles north of Phillipsville. Comment
  CDA39594  Iris tenuissima Rex E. Marsh 1961-4-1 s.n. Humboldt 2 miles south of Garberville. 0 Comment
  HSC79345  Iris tenuissima T. Jimerson, J. Pageau 1979-5-1 442 Humboldt 3.35 mi. S of Hwy. 96 on Red Cap Rd., Orleans Comment
  HSC25051  Isatis tinctoria D. E. Anderson 1972-6-11 Humboldt Barry Summit Comment
  JEPS93173  Isolepis cernua Margriet Wetherwax and Kevin Downing 1993-8-9 2454 Humboldt s side of slough just past Pigeon Point (e side of road, near Bayside Rd and Myrtle, e side of bay, just n of Eureka); Humboldt Bay, Eureka Slough 5 Comment
  HSC96497  Isolepis setacea Gordon Leppig 1998-6-8 802 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  HSC5883  Jaumea carnosa D. E. Anderson 1961-9-22 1830 Humboldt Along bank of road over Mad River slough Comment
  UC184125  Juncus balticus subsp. ater Joseph P. Tracy 1901-6-23 1190 1/2 Humboldt Eureka Northern Coast Region 0 Comment
  HSC36046  Juncus bolanderi Thomas W. Nelson 1975-9-24 2201 Humboldt Beside Indianola Rd., 0.5 mi. E of junction with Hwy. 101 Comment
  RSA246797  Juncus breweri Robert F. Thorne, Percy C. Everett 1965-8-5 35161 Humboldt Samoa Dunes. 3 Comment
  HSC91873  Juncus bufonius E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  UC1152112  Juncus bufonius Joseph P. Tracy 1927-6-19 8197 Humboldt Big Lagoon Comment
  UC1541651  Juncus bufonius Harold E. Parks Mar 1933 4300 Humboldt Spruce Cove Trinidad Comment
  UC184085  Juncus effusus subsp. pacificus Joseph P. Tracy 1906-8-18 2548 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS63895  Juncus effusus subsp. pacificus W. L. Jepson 1932-7-24 16392 Humboldt Garberville Comment
  HSC14019  Juncus ensifolius H. E. Parks, J. P. Tracy 1924-8-3 2400 Humboldt Big Lagoon Comment
  UC1103047  Juncus ensifolius Joseph P. Tracy 1919-9-18 5238 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC104132  Juncus falcatus subsp. falcatus C. Sander 2007-8-24 33096 Humboldt Ma-le'l Dunes Cooperative Management Area. 8 Comment
  UC1103054  Juncus hesperius Joseph P. Tracy 1901-7-29 1229 Humboldt Eureka Northern Coast Region 0 Comment
  UC1103057  Juncus hesperius J. P. Tracy 1900-8-26 931 Humboldt immediate vicinity Eureka 0 Comment
  UC421740  Juncus hesperius Henry Melde 1902-2-8 Humboldt Eureka Comment
  HSC36888  Juncus laccatus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2057 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  HSC56395  Juncus laccatus Terry Griswold, Marvin Butler 1979-7-11 6963 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek 1320 Comment
  UC183659  Juncus occidentalis Joseph P. Tracy 1911-7-7 3398 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC184181  Juncus occidentalis Joseph P. Tracy 1912-7-31 3911 Humboldt near Buck Mountain summit; Northern Coast Ranges 1219 Comment
  HSC102129  Juncus parryi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1033 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC58005  Juncus parryi G. L. Clifton, Griswold 1979-7-31 11791 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  HSC63280  Juncus parryi M. A. Baker 1979-6-27 930 Humboldt Rock faces E of Oregon Creek Comment
  RSA126572  Juncus patens H. S. Yates 1936-6-23 5858 Humboldt 2 miles southeast of mouth of Mad River. 305 Comment
  HSC71728  Juncus tenuis M. A. Baker 1980-6-26 2453 Humboldt Near Sims Creek 610 Comment
  NY21391  Juniperus communis F. W. Hunnewell 1925-7-22 9707 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  LA209293  Keckiella breviflora Marcus E. Jones; 1931-7-16 28828 Humboldt junction, E of Arcata Comment
  HSC23720  Keckiella corymbosa Tim Baroni 1971-7-5 96 Humboldt W bank of the Mattole River Comment
  JEPS11137  Keckiella corymbosa W. L. Jepson 1936-8-8 17864 Humboldt Hartsook; South Fork Eel River Comment
  JEPS57409  Keckiella corymbosa L. R. Heckard with T. I. Chuang 1968-7-5 Humboldt e of Garberville (along Mail Ridge Road, 4 1/2 mi n of its junction w Harris Road); Mail Ridge Road Comment
  NY790332  Keckiella lemmonii F. W. Pennell 1940-7-7 26089 Humboldt Route 299. South of Willow Creek. 182.9 Comment
  HSC56117  Kelloggia galioides Gilbert Muth 1979-8-1 11893 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC1132146  Koeleria macrantha H. S. Yates 1936-6-17 5699 Humboldt lower nw slope Buck Mountain; South Fork Peak Quad., lower nw slope Buck Mountain Comment
  UC205187  Kyhosia bolanderi Joseph P. Tracy 1919-9-18 5252 Humboldt meadow McKay; Trinity summit 1524 Comment
  UC1223228  Lactuca serriola Joseph P. Tracy 1949-8-8 18403 Humboldt at Willow Creek (Frank Graham's orchard); Trinity River Valley 152 Comment
  UC581803  Lagophylla ramosissima Joseph P. Tracy 1934-7-9 13354 Humboldt Dobbyn Creek 152 Comment
  UC577363  Lamium amplexicaule Joseph P. Tracy 1934-7-12 13380 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC5898  Lapsana communis David Adams 1960-7-15 Humboldt Azalea Reserve State Park 30 Comment
  HSC99476  Lapsana communis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 133 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SD50731  Lapsana communis Darley F. Howe 1959-8-14 Humboldt 86 miles west of Weaverville on Highway 289. 305 Comment
  UC582759  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  HSC26361  Lasthenia maritima T. O. Osborne 1970-5-24 89 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  CAS-BOT-BC204934  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 s.n. Humboldt Red Mountain Comment
  UCD107019  Lathyrus cicera Joseph P. Tracy 1942-6-15 17133 Humboldt at Englewood near Redcrest resort. 91 Comment
  HSC15267  Lathyrus glandulosus Francis Winter 1960-4-23 Humboldt 2 mi. E of Korbel, Korbel-Maple Creek Rd. 229 Comment
  UC1368670  Lathyrus glandulosus J. P. Tracy 1946-5-19 17530 Humboldt Kneeland, at Cameron Hill Kneeland; , Cameron Hill 670 Comment
  JEPS64857  Lathyrus lanszwertii var. lanszwertii Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  CAS-BOT-BC94773  Lathyrus latifolius R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 833 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  RSA183608  Lathyrus littoralis R. I. Bonn 1965-5-7 23 Humboldt Four miles west of Arcata on Lamphere Rd. Comment
  HSC74333  Lathyrus nevadensis var. nevadensis Gail Newton 1980-6-16 151 Humboldt Near Monks Camp 1097 Comment
  UC162614  Lathyrus nevadensis var. nevadensis Harley P. Chandler Jun 1901 1443 Humboldt Klamath River North Coast Ranges 304 Comment
  POM277779  Lathyrus polyphyllus Lyman Benson 1928-7-9 379 Humboldt Weott Ranger Station. Seaward N coast. Watershed- South Fork Eel Rivers. 61 Comment
  UC1222407  Lathyrus polyphyllus Joseph P. Tracy 1946-6-15 17570 Humboldt near Green Point (w of Redwood Creek on Trinity Highway) 457 Comment
  UC162867  Lathyrus polyphyllus Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5355 Humboldt Bell Springs to Harris; North Coast Ranges Comment
  UC931758  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19094 Humboldt 3 mi w Willow Creek (near Highway 299) Comment
  UC709411  Lathyrus torreyi Joseph P. Tracy 1934-7-12 13378 Humboldt Big Lagoon 152 Comment
  HSC100520  Lathyrus torreyi Carl C. Marshall Jun 1886 319 Humboldt Trail E of Hoopa. Comment
  SEINET956250  Lathyrus torreyi Joseph P. Tracy 1921-1 5478 Humboldt South fork of Esl River, near Myers, in open places in wood. 61 Comment
  CAS-BOT-BC326000  Layia carnosa Peter H. Raven 1963-5-15 18370 Humboldt Dunes above coast, Lanphere Ranch just W of Mad River Slough, near Arcata. Comment
  HSC48775  Layia carnosa Brad Klipfel 1975-5-22 624 Humboldt Near city of Eureka airport S of Samoa Comment
  UC1223217  Layia carnosa Joseph P. Tracy 1946-6-2 17555 Humboldt Fairhaven; Samoa Peninsula Comment
  UC153946  Layia carnosa Joseph P. Tracy 1910-4-24 3121 Humboldt Humboldt Bay Comment
  RSA249507  Ledum glandulosum subsp. columbianum R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35295 Humboldt Big Lagoon. 3 Comment
  POM318724  Leontodon leysseri Patricia Wilder 1968-8-21 4397 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  CAS-BOT-BC88801  Lepidium campestre M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles north of Garberville. Comment
  UC14403  Lepidium densiflorum Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC552286  Lepidium virginicum Joseph P. Tracy 1933-8-22 12992 Humboldt Mouth of Eel River North Coast Ranges 3 Comment
  HSC22865  Leptosiphon androsaceus D. E. Anderson 1965-5-8 3636 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  CAS-BOT-BC226709  Leptosiphon latisectus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg Comment
  UC908950  Leptosiphon latisectus Joseph P. Tracy 1927-5-8 7976 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  HSC79326  Lessingia nemaclada D. K. Imper 1982-8-27 Humboldt 1.5 mi. S of junction with FS 2S05 on FS 8E05, Six Rivers National Forest. Comment
  JEPS20620  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt on Van Duzen River opposite Buck Mountain; Northern Coast Ranges, Dinsmore's Ranch 670 Comment
  POM247188  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1199332  Lessingia nemaclada Joseph P. Tracy 1929-8-25 8662 Humboldt at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC48387  Lewisia leeana Brad Klipfel 1973-6-10 111 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC101974  Lewisia triphylla M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 871 Humboldt Patterson Meadows 1555 Comment
  UC573707  Leymus mollis subsp. mollis H. S. Yates 1936-6-18 5727 Humboldt near mouth of Little River; Eureka Quadrangle 4 Comment
  UCD65598  Leymus triticoides Malcolm A. Nobs; S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, CA. 2 miles N of Eureka. Comment
  UC154077  Ligusticum apiifolium Joseph P. Tracy 1906-6-24 2505 Humboldt near top Humboldt Hill; Northern Coast Region, Humboldt Bay 0 Comment
  UC154113  Ligusticum apiifolium Joseph P. Tracy 1909-8-29 3084 Humboldt near top Humboldt Hill; Northern Coast Region, Humboldt Bay 0 Comment
  UC1197320  Ligusticum californicum Joseph P. Tracy 1937-8-12 15633 Humboldt Snow Camp 1402 Comment
  HSC98754  Ligusticum californicum Cara Witte 2007-7-19 551 Humboldt Forest Service Road 4N32. 1.5 miles east of intersection with 4N70. Grouse Mountain Lookout. 1547 Comment
  UC55890  Lilium columbianum J. P. Tracy 1902-7-4 1755 Humboldt immediate vicinity Eureka (near Ryan's Slough Hill) 0 Comment
  CAS-BOT-BC508394  Lilium columbianum Mrs. L. B. Kildale 1925-6-7 s.n. Humboldt Between Trinidad Head and Orick Comment
  CAS-BOT-BC508398  Lilium columbianum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC508403  Lilium columbianum A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt A few miles north of Arcata Comment
  UC177231  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  UC902038  Lilium pardalinum Joseph P. Tracy 1949-8-26 18518 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  JEPS99290  Lilium rubescens H. and M. Dearing 1939-6-27 3730 Humboldt near Dinsmore (Van Duzen River) 730 Comment
  JEPS62038  Lilium washingtonianum subsp. purpurascens Hilda W. Grinnell 1932-7-22 38 Humboldt .37 mi beyond Blake Lookout (U.S.G.S. signal rock); South Fork Mt. 1767 Comment
  BLMAR501  Limnanthes douglasii Jennifer Wheeler 2009-4-30 501 Humboldt King range, Hidden Valley trail; trail forward Comment
  UC275336  Limnanthes douglasii Joseph P. Tracy 1924-5-4 6667 Humboldt near Bridgeville; Northern Coast Ranges 304 Comment
  UC146168  Linanthus androsaceus Joseph P. Tracy 1908-6 2746 Humboldt nw slope Buck Mountain; Northern Coast Ranges 457 Comment
  UC52735  Linanthus androsaceus Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC1198579  Linanthus androsaceus Joseph P. Tracy 1942-6-28 17273 Humboldt Murphy Ridge Bald Mountain 914 Comment
  UC23368  Linanthus androsaceus C. C. Marshall 1888-1 Humboldt in lower Humbolt County Comment
  JEPS79923  Linanthus ciliatus Joseph P. Tracy 12923 Humboldt s slope Grouse Mountain (towards Grouse Creek Basin); North Coast Ranges 1219 Comment
  HSC43105  Linum grandiflorum Maralyn O'Meara 1974-5-14 358 Humboldt Along Hwy. 36 ca. 2.4 mi. E of Bridgeville. Comment
  HSC39076  Listera caurina J. D. Ackerman 1976-7-3 764 Humboldt 1 mi. E of Blue Lake along old state Hwy. 299. Simpson Demonstration Forest, near hwy. Comment
  UC1103031  Listera caurina Joseph P. Tracy 1924-7-4 6712 Humboldt Snow Camp 1402 Comment
  CHSC20342  Lithocarpus densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland. 731 Comment
  RSA476670  Lithocarpus densiflorus var. densiflorus Thekla Mohr s.n. Humboldt Eel River. Humboldt and Mendocino Cos. Comment
  RSA152286  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-8-15 18136 Humboldt Trinity Summit. On ridge 2 miles east of Grove's Prairie. 1524 Comment
  CAS-BOT-BC430611  Lithophragma affine Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC20227  Lithophragma affine G. N. Bos 1965-5-15 266 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  UC1196491  Lithophragma affine Harold E. Parks and Joseph P. Tracy 1942-5-16 11558 B Humboldt vicinity Garberville; vicinity of Garberville 152 Comment
  UC154138  Lithophragma affine Mrs. M. H. Manning Apr. 1902 Humboldt near Hupa; near Hupa Comment
  UC1196492  Lithophragma affine Joseph P. Tracy 1918-5-26 4944 Humboldt lower foothills towards Redwood Creek Grouse Mt.; Northern Coast Ranges, , towards Redwood Creek 762 Comment
  UC582504  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Willow Creek, Trinity River Valley, Willow Creek 152 Comment
  UC1103060  Lolium multiflorum Joseph P. Tracy 1915-6-20 4653 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  HSC47797  Lolium perenne Michael A. Watkins 1978-6-10 1 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  HSC79445  Lolium perenne Kenneth Clark 1980-5-10 640 Humboldt Sheltor Cove, above Dead Man's Gulch. 122 Comment
  HSC36190  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1898 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC56003  Lomatium macrocarpum Overton, Butler 1979-7-31 11454 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC56050  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-31 11646 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC74465  Lomatium macrocarpum M. A. Baker 1980-5-18 1328 Humboldt Near Black Mtn. 792 Comment
  UC32502  Lomatium macrocarpum W. C. Blasdale 1896-6-6 Humboldt Kneeland's Pr. Comment
  UC1197155  Lomatium macrocarpum Joseph P. Tracy 1937-7-24 15522 Humboldt head of Devil's Hole (Trinity Summit); , Devil's Hole 1676 Comment
  UC1438147  Lomatium tracyi Barbara Kelly 1978-5-1 591 Humboldt 1/4 mi. from Horse Mt. Rd., 1/2 mi. below turnoff to summit, near end of unused gravel rd. Comment
  UC314629  Lomatium tracyi Joseph P. Tracy 1926-6-20 7610 Humboldt Horse Mt. Northern Coast Ranges, Horse Mt. 1524 Comment
  HSC74565  Lomatium triternatum M. A. Baker 1980-5-18 1369 Humboldt Near Black Mtn. 792 Comment
  HSC3946  Lonicera conjugialis J. P. Tracy 1932-7-11 10414 Humboldt Trinity Summit 1524 Comment
  HSC40052  Lonicera conjugialis J. O. Sawyer 1970-6-24 2274 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC99850  Lonicera conjugialis Jimerson, J. Pageau 1979-8-10 750 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa. 1463 Comment
  UC168948  Lonicera hispidula var. vacillans Joseph P. Tracy 1904-7-31 2132 Humboldt Eureka Northern Coast Region 0 Comment
  SDSU2899  Lonicera involucrata D. F. Howe 1961-8-1 3104 Humboldt 6 miles north of Trinidad on #101. Comment
  UCR27010  Lonicera involucrata A. C. Sanders 1981-8-4 2262 Humboldt Patrick's Point State Park, north of Eureka 30 Comment
  CAS-BOT-BC241492  Lonicera involucrata var. ledebourii L. R. Abrams 1922-6-25 8246 Humboldt Near South Bay Comment
  JEPS13667  Lonicera involucrata var. ledebourii Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad 30 Comment
  SEINET12154181  Lotus aboriginus J. P. Tracy 1949-1 18321 Humboldt nr Boynton PRairie 12miSE of Arcata Comment
  SDSU4292  Lotus corniculatus D. F. Howe 1959-8-4 2808 Humboldt Roadside near bridge over Eureka slough by Humboldt Bay. Comment
  JEPS55388  Lotus crassifolius var. crassifolius Lincoln Constance 1934-6-15 877 Humboldt Summit of Grasshopper Peak South Fork Eel River, Bull Creek Region 975 Comment
  JEPS55451  Lotus formosissimus W. L. Jepson 1902-6-24 1922 Humboldt Eureka to Arcata Comment
  JEPS51821  Lotus nevadensis var. nevadensis W. L. Jepson 1902-7-3 1979 Humboldt Three Creeks to Willow Creek Comment
  UC302114  Lotus oblongifolius Joseph P. Tracy 1926-6-20 7629 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  JEPS55790  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6271 Humboldt Big Lagoon Northern Coast Region 6 Comment
  RSA406270  Lotus unifoliolatus Bonnie C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  HSC57342  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-26 10118 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC74666  Luina hypoleuca Gail Newton 1981-8-7 2423 Humboldt Near Bug Creek Butte 1244 Comment
  RSA170200  Luina hypoleuca Joseph P. Tracy 1944-8-13 17489 Humboldt Near Romanzoffia Creek. Willow Creek Canyon, along Trinity Highway 366 Comment
  RSA21198  Luina hypoleuca C. B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 miles above Orleans. Comment
  RSA94105  Luina hypoleuca var. californica F. W. Peirson 1926-7-12 7026 Humboldt Humboldt County: Klamath River near Weitchpec Comment
  UC584132  Lupinus David D. Keck and J. Clausen 1935-6-16 3392 Humboldt mouth of Little River Comment
  CAS-BOT-BC201189  Lupinus Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  RSA138212  Lupinus adsurgens var. lilacinus Volney Rattan 1882-06 16 Humboldt Humboldt Comment
  UC502997  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-7-15 10586 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit, e of Corral Prairie 1828 Comment
  HSC32158  Lupinus andersonii J. O. Sawyer 1970-6-24 2233 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1129356  Lupinus arboreus G. T. Nordstrom Jul 1937 1441 Humboldt 1.5 mi sw Orick; Orick Quad. 152 Comment
  UC1716061  Lupinus arboreus M. S. Taylor 1990-8-22 6070 Humboldt Samoa Recreation Area, Samoa Peninsula, Staging Area Eureka Comment
  UCR122384  Lupinus arboreus George K. Helmkamp, E. A. Helmkamp 2001-7-8 6999 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  SEINET10488497  Lupinus arboreus Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2501 Humboldt In the vicinity of a state park on the beach opposite mckinleyville. Vast Colony of yellow lupinus arboreus 3 Comment
  HSC101035  Lupinus elmeri A. Thoele, Sydney Carothers 1995-7-14 57 Humboldt Six Rivers National Forest; .6 mi. south of intersection of Forest Route 1 & Rd. 3N06, on the edge of Route 1. 1720 Comment
  SBBG3622  Lupinus formosus H. and M. Dearing 1939-5-24 3425 Humboldt W of Panther Gap, Dyerville, Honeydew Comment
  UC150137  Lupinus littoralis Joseph P. Tracy 1911-11-5 3556 Humboldt Ocean Beach Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  RSA87026  Lupinus luteolus F. W. Peirson 1926-7-13 7057 Humboldt Near Blue Lake, Mad River Comment
  BLMAR343  Lupinus nanus Jennifer Anthony-Wheeler 2003-5-15 343 Humboldt Eden valley, Irrigated meadow on private land 694 Comment
  HSC89503  Lupinus rivularis M. Roantree 1985-5-30 76 Humboldt E side of Trinidad Head along dirt road Comment
  POM66235  Lupinus rivularis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC34627  Lupinus rivularis Lon Hall 1975-3-27 294 Humboldt Near Shelter Cove, above large meadow in bend of Bear Creek 366 Comment
  UC503019  Lupinus rivularis Joseph P. Tracy 1927-6-18 8189 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  RSA165867  Lupinus variicolor Philip A. Munz 1963-6-19 24528 Humboldt Patrick's Point. 30 Comment
  OBI19043  Luzula cascadensis Joseph P. Tracy 1930-7-23 9128 Humboldt Grouse Mountain; at "Cold Springs" 1433 Comment
  HSC64191  Luzula parviflora J. O. Sawyer, M. A. Ericksen 1979-6-23 3377 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  SEINET8717658 Image available Luzula parviflora H. E. Parks, S. T. Parks 1952-1 22446 Humboldt Bishop Pine Lodge. Trinidad. Comment
  UC183776  Luzula subsessilis Joseph P. Tracy 1904-4-24 2032 Humboldt Northern Coast Region. Sand Dunes of Ocean Beach at Humboldt Bay Comment
  CAS-BOT-BC61932  Lycopodium clavatum H. E. Parks; W. K. Parks 1932-7-30 01132 Humboldt Camp 21 Hammon Lumber Company, Trinidad 152 Comment
  CHSC96729  Lycopodium clavatum Gordon Leppig 2004-2-3 2129 Humboldt The Pacific Lumber Company land. UTM Zone 10 0411778E, 4516248N. 300 Comment
Read comments
Jan 21 2014
  OBI1067  Lycopodium clavatum Lawrence L. Kiefer 1964-5-20 1435 Humboldt Near Trinidad, one mile E of Moonstone Beach on Kuntz property 91 Comment
  HSC96481  Lycopus uniflorus Gordon Leppig 1997-8-3 640 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  JEPS63269  Lycopus uniflorus H. E. Parks and Joseph P. Tracy 1924-8-3 6765 Humboldt Big Lagoon 6 Comment
  UC577389  Lycopus uniflorus Joseph P. Tracy 1925-10-18 7284 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC486490  Lysichiton americanus H. E. and S. T. Parks 1930-9-14 781 Humboldt Big Lagoon Comment
  UCD138085  Lysichiton americanus Malcolm A. Nobs; S. Galen Smith 1949-8-3 1183 Humboldt Southern outskirts of Eureka. Comment
  UCSB12371  Lysichiton americanus Dearing, Hugh; Dearing, Margaret 1939-5-25 Humboldt Near Samoa Comment
  HSC25657  Lysichiton americanus Mike Silbernagle, Dennis Knuckles 1972-10-12 5826 Humboldt McKinleyville, field bounded by N Central, Norton Rd. and Dow's Prairie Rd. Comment
  JEPS46466  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt Fields Ld'g Comment
  RSA183502  Lysichiton americanus T. L. Grosz 1964-5-1 C Humboldt 300 yards up on Park Ave. and behind Myrtle Ave. Comment
  UC1733678  Lysichiton americanus Kay H. Beach, Frank Gould 1940-5-5 478 Humboldt near Fields Landing. Comment
  UC144652  Lythrum hyssopifolia J. P. Tracy 1903-8-2 1924 Humboldt immediate vicinity of Eureka 0 Comment
  HSC90841  Lythrum hyssopifolia Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, at the end of the Fernstrom-Root trail, along W border of the salt marsh. Comment
  RSA0015872  Lythrum hyssopifolia Joseph P. Tracy 1927-8-7 8321 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  HSC57190  Madia gracilis Griswold, Butler 1979-7-11 6906 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC58171  Madia gracilis G. L. Clifton, Griswold 1979-8-2 12245 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC1223208  Madia gracilis Joseph P. Tracy 1950-7-6 19026 Humboldt 3 mi s of Burr Valley; Sproston's Place 1066 Comment
  UC176779  Madia gracilis Joseph P. Tracy 1908-6 2694 Humboldt opposite Buck Mountain; Valley of Van Duzen River 762 Comment
  SBBG34731  Madia gracilis T. L. Secrest 1948-7-1 Humboldt near Hwy 101, southern Humboldt county Comment
  UC581812  Madia sativa Joseph P. Tracy 1936-8-24 15178 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA89891  Mahonia nervosa E. K. Balls, P. C. Everett 1953-10-13 18655 Humboldt 17.4 mi. E of jct Hwys 101 and 299 above Blue Lake. 274 Comment
  CHSC2299  Maianthemum dilatatum M. Anthony 1960-5-14 Humboldt Arcata. Comment
  HSC26821  Maianthemum dilatatum Clifton Raymond Chesbrough 1973-6-19 67 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  RSA41939  Maianthemum dilatatum H. C. Cantelow 1935-5-30 s.n. Humboldt 8 miles north of Orick Comment
  HSC15643  Maianthemum racemosum subsp. amplexicaule Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  RSA347055  Maianthemum racemosum subsp. amplexicaule Lyman Benson 1928-7-12 494 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  RSA554593  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1993-5-9 4911 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  HSC70326  Maianthemum stellatum M. A. Baker 1980-6-8 1881 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC512772  Maianthemum stellatum Doris K. Kildale 1926-3-26 1648 Humboldt Old Fortuna Road 15 Comment
  RSA0009485  Maianthemum stellatum Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville. Comment
  UC204742  Malacothrix floccifera Joseph P. Tracy 1918-7-6 5049 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  UC565510  Malacothrix floccifera H. L. Mason 1928-7-14 4906 Humboldt near Garberville; East Fork of Eel River Comment
  CAS-BOT-BC347411  Malacothrix floccifera Joseph P. Tracy 1911-7-4 3278 Humboldt Northern Coast Ranges. Along Willow Creek. (Tributary of Trinity River, Humboldt County) near its mouth 152 Comment
  UC1198762  Malus fusca Joseph P. Tracy 1926-4-11 7410 Humboldt Blue Slide Northern Coast Ranges (on Van Duzen River) 91 Comment
  UC180179  Malus fusca Joseph P. Tracy 1914-5-3 4420 Humboldt Eureka; Northern Coast Region 0 Comment
  UC484032  Malus fusca C. B. Wolf 1930-10-26 Humboldt s edge Big Lagoon (near the Redwood Highway) 3 Comment
  UCD113220  Malus fusca H. E. Parks 1933-4-1 4352 Humboldt Spruce Cove, Trinidad. Comment
  HSC7031  Marah oregana R. D. Zortman 1963-5-15 47 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC73934  Marah oregana Gail Newton 1980-6-28 683 Humboldt Near Mad River Butte. 1536 Comment
  HSC7035  Marah oregana D. E. Anderson 1962-3-31 1952 Humboldt Coastal area of Prairie Creek State Park Comment
  UC1197426  Medicago polymorpha Joseph P. Tracy 1936-6-8 14868 Humboldt Trinidad Bluffs Trinidad 3 Comment
  RSA152371  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC277170  Melica californica Joseph P. Tracy 1921-5-30 5491 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  CAS-BOT-BC281325  Melica harfordii W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  UC1103754  Melica harfordii Joseph P. Tracy 1941-7-5 16968 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UCD87509  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Garberville. Comment
  HSC97958  Melica subulata Cara Witte, Michael Scott 2007-6-22 340 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  UC187244  Melica subulata J. P. Tracy 1900-5-28 815 Humboldt immediate vicinity Eureka 0 Comment
  UC552705  Melica subulata Joseph P. Tracy 1935-7-25 14224 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UCD88639  Melica subulata A. H. Murphy 1950-1 s.n. Humboldt E. M. Cottrell Ranch. Comment
  UCD88684  Melica subulata H. S. Yates 1936-6-23 5878 Humboldt 4 miles NNE of Cathey's Peak. Comment
  HSC97531  Melilotus albus Ivy Watson 2008-9-17 19 Humboldt Mad River Park on W End Rd., near pumping station, 300 ft. away from river. 8 Comment
  UC1239693  Mentha aquatica Joseph P. Tracy 1918-11-17 5120 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC577344  Mentha canadensis Joseph P. Tracy 1934-7-30 13501 Humboldt along coast in front of South End Stone Lagoon (Dry Lagoon); , in front of South End of Stone Lagoon 3 Comment
  HSC22008  Mentha pulegium Thomas W. Nelson 1970-10-18 250 Humboldt Beside Hwy. 101, 100 yds. N of bridge over Mad River Comment
  HSC15863  Mentzelia dispersa W. K. Parks Jul 1933 1420 Humboldt On Buck Mtn. Comment
  UC668288  Mentzelia dispersa Joseph P. Tracy 1937-7-24 15521 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  CAS-BOT-BC322681  Microseris laciniata Harley P. Chandler 1901-6-1 1408 Humboldt Klamath River 243 Comment
  UC166792  Microseris laciniata subsp. laciniata Joseph P. Tracy 1909-7-31 3028 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1223043  Microseris laciniata subsp. laciniata Joseph P. Tracy 1947-6-8 17706 Humboldt by old Strong's District School House (5 mi e of town); Carlotta 60 Comment
  UC538045  Microseris nutans E. B. Babcock 1932-6-25 405 Humboldt n slope South Fork Mt. (Humboldt-Trinity Counties) 1524 Comment
  HSC70961  Microsteris gracilis Thomas W. Nelson 1977-6-15 3455 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  UC1196767  Mimulus alsinoides Joseph P. Tracy 1946-6-23 175900 Humboldt Kneeland Prairie 762 Comment
  UC1239052  Mimulus cardinalis Freed W. Hoffman 1949-7-15 3011 Humboldt a little s Blue Ridge (bottom of Mule Slide); North Coast Ranges, Mt. Lassic area Comment
  UC446437  Mimulus cardinalis Mrs. M. H. Manning 1901-7-29 321 Humboldt Trinity River Hupa Valley Comment
  UC336872  Mimulus dentatus V. Rattan June 1882 Humboldt Humboldt Bay Comment
  UC418983  Mimulus dentatus H. E. Parks May 1930 Humboldt above Carlotta; Van Duzen River Comment
  UC1191884  Mimulus grandis Malcolm A. Nobs, S. Galen Smith 1949-8-3 1192 Humboldt southern outskirts Eureka Comment
  HSC102176  Mimulus guttatus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1089 Humboldt Patterson Meadows 1555 Comment
  HSC45092  Mimulus guttatus R. Sutherland 1978-5-12 13 .12578 Humboldt 290 Comment
  HSC95361  Mimulus guttatus Andrea Pickart 2002-8-7 198 Humboldt Arcata Bottoms; Along Lanphere Rd. 0 Comment
  HSC70317  Mimulus guttatus subsp. micranthus M. A. Baker 1980-6-7 1868 Humboldt Near Ammon Creek 732 Comment
  UC535723  Mimulus inodorus Eleanor Armstrong 1934-8-18 1138 Humboldt Richardson Grove 121 Comment
  UCD20373  Mimulus kelloggii K. Esau 1935-4-23 s. n. Humboldt Humboldt County, Fort Seward. Comment
  UC162580  Mimulus layneae Joseph P. Tracy 1911-7-8 3443 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC40813  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2866 Humboldt Along Rd. to Goat Hill. 1646 Comment
  HSC48319  Mimulus moschatus Brad Klipfel 1973-8-3 310 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC98844  Mimulus moschatus Cara Witte 2008-7-11 876 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  RSA15580  Mimulus moschatus Carl B. Wolf 1927-8-27 1160 Humboldt On the Klamath River, 14 mi. above Weitchpec. Comment
  HSC40029  Mimulus nanus var. nanus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2877 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  UC26991  Mimulus nasutus C. C. Marshall 1888-1 Humboldt Comment
  HSC43204  Mimulus pilosus R. Sutherland 1976-8-13 26 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  HSC42454  Mimulus pulsiferae Barbara Kelly 1977-7-16 539 Humboldt On Horse Mtn. Rd., 1/2 mi. below where it forks; 1.5 mi. below summit 1402 Comment
  JEPS28974  Mimulus pulsiferae Joseph T. Gregory 1933-7-25 473 Humboldt Titlow Mt. 1371 Comment
  UCD98260  Minuartia californica R. N. Raynor 1935-4-23 s.n. Humboldt Fort Seward. Comment
  HSC70389  Minuartia douglasii Gail Newton 1980-6-7 138 Humboldt Near Brush Mtn. 1128 Comment
  HSC4063  Minuartia pusilla D. E. Anderson 1963-5-19 2469 Humboldt Kneeland Area Comment
  UC1198866  Mitella caulescens Joseph P. Tracy 1942-6-28 17268 Humboldt Murphy Meadows Bald Mountain (edges of bog) 975 Comment
  HSC64876  Mitella ovalis J. P. Smith 1973-5-26 6849 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  BLMAR365  Modiola caroliniana Clara Sander 2003-6-3 365 Humboldt King range, Mattole campground roadside 9 Comment
  HSC55106  Moehringia macrophylla G. L. Clifton 1979-7-31 11846 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC74371  Moehringia macrophylla M. A. Baker 1980-6-16 1950 Humboldt Near Onion Mtn. 1280 Comment
  UC8146  Moehringia macrophylla Harley P. Chandler June, 1901 1284 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  CAS-BOT-BC221777  Monardella odoratissima Doris K. Kildale 1927-7-22 3814 Humboldt Lassecks Peaks 1661 Comment
  UC213510  Monardella odoratissima subsp. glauca Joseph P. Tracy 1919-9-22 5262 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CAS-BOT-BC215566  Monardella odoratissima subsp. pallida Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  HSC48699  Monardella odoratissima subsp. pallida Brad Klipfel 1973-7-31 239 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58101  Monardella odoratissima subsp. pallida G. L. Clifton, Griswold 1979-8-1 12032 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC577345  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain, near McKay Camp; Northern Coast Ranges 1676 Comment
  UC1222870  Monardella purpurea Joseph P. Tracy 1950-7-27 18920 Humboldt at intersection of Haynes Flat Road Coon Mountain 944 Comment
  HSC98984  Monardella sheltonii Cara Witte 2007-7-27 604 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1413 Comment
  HSC14282  Monardella villosa Paul Shields Jul 1955 Humboldt 3 mi. S of Myers Flat Comment
  RSA0022787  Monardella villosa subsp. subserrata Carl B. Wolf 1934-7-3 5923 Humboldt Weitchpec (junction of Klamath and Trinity Rivers). 200 yards west of school. 152 Comment
  UC1225847  Monardella villosa subsp. villosa Joseph P. Tracy 1946-7-21 17619 Humboldt Blue Slide Van Duzen River 91 Comment
  UC275324  Montia howellii Joseph P. Tracy 1923-4-15 6187 Humboldt Redwood Creek, at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  HSC58648  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-7-31 11669 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  POM257954  Muhlenbergia filiformis Joseph P. Tracy 8920 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1677 Comment
  HSC3725  Myosotis sylvatica D. E. Anderson 1962-3-18 1944 Humboldt Corner of old Hwy. 101 and old Hwy. 299, 2.5 mi. N of Arcata Comment
  RSA77516  Myriophyllum sibiricum F. W. Peirson 1923-7-11 3786 Humboldt 20 miles north of Eureka. Comment
  CAS-BOT-BC60347  Nasturtium officinale Doris K. Kildale 1926-8-12 2484 Humboldt Moonstone Beach near Trinidad. Comment
  UC1198526  Navarretia atractyloides Joseph P. Tracy 1933-7-9 12645 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC102509  Navarretia capillaris M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1494 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC57888  Navarretia capillaris Overton, Butler 1979-7-31 11442 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC906681  Navarretia intertexta Joseph P. Tracy 1942-7-18 17288 Humboldt Garberville 152 Comment
  UC1198520  Navarretia pubescens Joseph P. Tracy 1914-5-14 4456 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  CAS-BOT-BC232739  Navarretia sinistra subsp. pinnatisecta Doris K. Kildale 1926-8-2 2444 Humboldt Flannegan's Mill near Strong's Station, Van Duzen River Comment
  HSC27618  Navarretia squarrosa Thomas W. Nelson 1973-7-24 1100 Humboldt Flood plain of the Mad River at the Carson R.R. bridge Comment
  JEPS70475  Navarretia squarrosa Lincoln Constance 1934-6-25 931 Humboldt across road Collin's Englewood Campground (on e side of road at Englewood, main Eel River); Eel River, Bull Creek Region, Englewood Comment
  SEINET200628  Navarretia viscidula Joseph P. Tracy 1918-7-5 5036 Humboldt White Thorn Valley 305 Comment
  UC1239737  Nemophila menziesii Joseph P. Tracy 1938-6-13 15919 Humboldt at Cold Springs , at Cold Springs (Grouse Mountain) 1432 Comment
  HSC13586  Nemophila menziesii Doris K. Kildale 1926-4-11 1762 Humboldt Buck Mtn. Comment
  HSC34960  Nemophila menziesii var. atomaria Thomas W. Nelson 1975-5-24 1868 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC97503  Nemophila menziesii var. atomaria C. Witte 2007-5-8 1 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  SD42585  Nemophila menziesii var. atomaria Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 mi. w. of Little Van Duzen River at summit of grade -- Dinsmores to Bridgeville. 762 Comment
  UC1239752  Nemophila menziesii var. atomaria Joseph P. Tracy 1923-4-1 6174 Humboldt 3 mi e Blue Lake (Mankin Place); e of Blue Lake, Mankin Place 274 Comment
  UC24262  Nemophila menziesii var. atomaria Joseph Burtt Davy and Walter C. Blasdale 1899-5 5739 Humboldt Hoopa Valley North-Western California, Hoopa Valley Comment
  UC562586  Nemophila menziesii var. atomaria Joseph P. Tracy 1927-4-17 7903 Humboldt 274 Comment
  HSC89473  Nemophila menziesii var. menziesii P. A. Daly 1986-3-12 94 Humboldt Trinidad Head, along trail 61 Comment
  UC1245393  Nemophila parviflora Joseph T. Gregory 1933-7-11 364 Humboldt nr Clear Lake (Grouse Mt.); nr Clear Lake, Grouse Mt. 1524 Comment
  UC198640  Nemophila pedunculata Joseph P. Tracy 1917-5-27 4784 Humboldt Eureka Northern Coast Ranges, at Eureka 0 Comment
  CAS-BOT-BC60563  Noccaea fendleri subsp. glauca Lincoln Constance; Reed C. Rollins 1942-5-12 2887 Humboldt Klamath-Siskiyou Region. Klamath River 7 miles northeast of Weitchpec. 121 Comment
  UCD110176  Notholithocarpus densiflorus Joseph M. DiTomaso 1976-3-28 351 Humboldt West of Lord Ellis summit on Highway 299 between Arcata and Willow Creek. 762 Comment
  UCSB1031  Notholithocarpus densiflorus Muller, Cornelius 1954-6-21 Humboldt 8 mi. ESE of Mad River on road to Forest Glen Comment
  HSC48063  Nuttallanthus texanus Thomas W. Nelson 1978-4-23 3885 Humboldt N of Samoa Comment
  HSC79334  Oemleria cerasiformis D. H. Norris 1970-5-20 12218 Humboldt Crest of Big Hill Rd. E of Hoopa Comment
  HSC99107  Oemleria cerasiformis Cara Witte 2008-6-13 721 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  UC183620  Oemleria cerasiformis Joseph P. Tracy 1912-3-31 3565 Humboldt Blue Lake; Northern Coast Region 30 Comment
  BLMAR318  Oenanthe sarmentosa Jennifer Anthony-Wheeler 2002-8-9 318 Humboldt Headwaters Forest Reserve, growing in a pond with large floating logs 426 Comment
  CAS-BOT-BC436010  Oenanthe sarmentosa W. R. Dudley 1899-6-21 s.n. Humboldt Near Scotia Comment
  CDA38491  Oenanthe sarmentosa Margaret Bellue Jul 1933 s.n. Humboldt Arcata. 0 Comment
  RSA246755  Oenanthe sarmentosa R. F. Thorne, P. Everett 1965-8-9 35318 Humboldt Clam Beach County Park: along highway. 3 Comment
  SEINET10964717  Oenanthe sarmentosa Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-8-6 Bennett 481 Humboldt Collected by Hwy. 101, N side of Orick. 30 Comment
  UC642332  Oenanthe sarmentosa Joseph P. Tracy 1927-9-25 8376 Humboldt at Eureka Eureka 6 Comment
  HSC16486  Oenothera glazioviana Jerry Parker 1968-10-1 78 Humboldt 0.5 mi. N of Dows Prairie School Comment
  POM224765  Oenothera glazioviana P. A. Munz 1936-8-13 14384 Humboldt 7 miles east of Arcata. Comment
  NY233562  Oenothera hookeri subsp. wolfii C. B. Wolf 1934-10-11 6172 Humboldt Roadside along the Redwood Highway, just south of Trinidad. Comment
  HSC16684  Orobanche californica subsp. californica Jerry Parker 1968-10-26 205 Humboldt Big Lagoon, dredged sand-spit opposite Sphagnum bog. Comment
  CAS-BOT-BC499865  Orobanche fasciculata L. R. Abrams 1918-6-15 7119 Humboldt Brannan Mt. near Willow Creek 1371 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
  HSC54678  Orthilia secunda Overton, Butler 1979-7-26 9942 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC56086  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11774 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA80283  Orthocarpus purpurascens var. latifolius F. W. Peirson 1926-7-14 7064 Humboldt Table Bluff Lighthouse, south of Eureka. Comment
  HSC45396  Osmorhiza berteroi Thomas W. Nelson, Jane P. Nelson 1977-7-4 3596 Humboldt Beside pond above Alder Springs 1585 Comment
  RSA430437  Osmorhiza berteroi Lyman Benson 1928-7-10 405 Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  JEPS14242  Osmorhiza occidentalis Joseph P. Tracy 1930-6-29 8810 Humboldt Buck Mountain; lower foothills of nw slope 762 Comment
  HSC12755  Oxalis corniculata M. J. Athey 1970-11-22 23 Humboldt In Arcata along G street in front of P G & E Comment
  RSA245261  Oxalis corniculata R. A. Vanbianchi 1971-11-5 92 Humboldt Humbolt State College campus. SouthWest corner theatre arts building. Comment
  JEPS93971  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt at the s. tip of the North Spit of Humboldt Bay Samoa Dunes Recreation Area (along rd. leading into the recreation area); Humboldt Bay, Samoa Dunes Recreation Area 6 Comment
  HSC47502  Oxalis oregana Sheila Logan 1978-4-10 28 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  SBBG25583  Oxalis oregana E. R. Blakley 1966-8-17 6794 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  UC1197420  Oxalis oregana Joseph P. Tracy 1926-4-25 7413 Humboldt Strong's Station Northern Coast Ranges 60 Comment
  UCD110982  Oxalis oregana R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  SEINET3347146 Image available Oxalis suksdorfii Joseph P. Tracy 1930-6-22 8796 Humboldt Redwood Creek, at Berry's Comment
  HSC99469  Oxalis trilliifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 123 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC96581  Packera bolanderi var. bolanderi Gordon Leppig, Maralyn A. Renner 2005-6-7 2246 Humboldt Pacific Lumber Company land. Redwood House Rd., Hely Creek watershed 363 Comment
  UC91426  Packera bolanderi var. bolanderi W. W. Price Humboldt Mad River Comment
  UC183769  Paeonia brownii Joseph P. Tracy 1913-6-17 4150 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  UC1103778  Panicum acuminatum var. acuminatum Joseph P. Tracy 1915-6-20 4651 1/2 Humboldt Ricks Prairie Eureka (Eureka); Northern Coast Region, Ricks Prairie 0 Comment
  CAS-BOT-BC253706  Panicum capillare Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC23305  Papaver somniferum W. Wood Oct 1971 Humboldt McKinleyville Comment
  HSC13259  Parapholis incurva D. E. Anderson 1965-6-10 3786 Humboldt E part of Eureka. Comment
  HSC90262  Parentucellia viscosa Jean Hanson 1980-5-24 75 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka, W end of island, S of dike Comment
  HSC22030  Paxistima myrsinites R. W. Spjut 1971-5-22 1922 Humboldt 1/4 mi. NW of Johnson Prairie, 8 mi. W of Willow Creek 1067 Comment
  HSC71156  Paxistima myrsinites Thomas W. Nelson 1977-6-15 3426 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  CAS-BOT-BC67769  Pellaea andromedifolia Doris K. Kildale 1926-4-30 1921 Humboldt Briceland Bridge, 1/2 mile west of Garbersville 114 Comment
  SEINET3873313  Pellaea mucronata subsp. mucronata Thomas Nelson, James Nelson 1976-5-30 2612 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC97964  Penstemon anguineus Cara Witte 2007-6-21 321 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  JEPS86690  Penstemon anguineus L. R. Heckard with T. I. Chuang 1990-7-15 6769 Humboldt ca 15 mi n Highway 36 (South Fork Mountain Rd); South Fork Mountain Rd., n of Hwy 36 1700 Comment
  HSC54203  Penstemon deustus Terry Griswold, Marvin Butler 1979-7-12 7243 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  RSA309621  Penstemon deustus Walter Wisura 1983-9-3 3931 Humboldt About 6 mi N of Weitchpec, along Klamath River. Comment
  UC1222787  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1950-6-15 18782 Humboldt 7 mi n Harris (at the Jenk's Ranch); n of Harris, at the Jenk's Ranch Comment
  UC169355  Penstemon laetus var. sagittatus Harley P. Chandler 1901-6-14 1472 Humboldt between Orleans and Somes Bar; North Coast Ranges, Klamath River 426 Comment
  UCR39809  Penstemon newberryi D. K. Imper 1984-6-6 s.n. Humboldt Slate Creek Butte 1372 Comment
  RSA517741  Penstemon newberryi subsp. berryi W. K. Parks 1933-07 s.n. Humboldt South Fork Mountain. Comment
  UC1222945  Pentachaeta alsinoides Joseph P. Tracy 1946-5-16 17346 Humboldt bench on w side of river 1 mi s Garberville; Eel River Comment
  HSC79535  Pentagramma triangularis Kenneth Clark 1980-6-14 693 Humboldt On Greywacke outcrop, N fork Dead Man's Gulch 91 Comment
  RSA0070754  Pentagramma triangularis Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  SEINET196690  Perideridia gairdneri Joseph P. Tracy 1942-9-20 17324 Humboldt 2 miles S of Fields Landing 3 Comment
  UC562621  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1936-10-24 15204 Humboldt 2 mi s Fields Landing; Northern Coast Region, around Humboldt Bay 9 Comment
  HSC102170  Perideridia oregana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1082 Humboldt Patterson Meadows 1555 Comment
  CHSC79802  Persicaria capitata Gordon Leppig; Sylvia Leppig 2000-4-16 1298 Humboldt Arcata. Corner 17th and J St. base of curb. UTM zone 10, N4525 E408. 60 Comment
  CDA40548  Persicaria wallichii R. Robison 2014-5-5 s.n. Humboldt Adjacent to Trinidad State Beach on Stagecoach Road. 0 Comment
  UC1239507  Petasites frigidus var. palmatus Joseph P. Tracy 1937-7-2 15405 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  POM41563  Petasites palmatus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC76574  Phacelia bolanderi Denis Kearns 1981-7-8 142 Humboldt Near Bluff Creek 622 Comment
  SD90173  Phacelia bolanderi Benjamin C. Stone 1952-6-25 124 Humboldt Hwy 101, 15 mi south of Klamath 14 Comment
  SEINET12335255  Phacelia bolanderi F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -304 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  BLMAR698  Phacelia ciliata Jennifer Wheeler 2011-6-15 698 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  HSC76575  Phacelia hastata Teresa Prendusi 1981-7-24 485 Humboldt Near Whiteys Peak 1585 Comment
  HSC98658  Phacelia heterophylla subsp. virgata Cara Witte 2007-7-3 416 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  UC906636  Phacelia mutabilis Joseph P. Tracy 1947-7-9 17832 Humboldt lower slopes Horse Mountain 1219 Comment
  UC671690  Phacelia nemoralis subsp. oregonensis Lincoln Constance, Alan A. Beetle 1940-5-16 2609 Humboldt 12 mi s Eureka (summit of bluff); Table Bluff 30 Comment
  UC1152048  Phalaris minor Joseph P. Tracy 1951-6-21 19519 Humboldt Hydesville Comment
  CAS-BOT-BC76574  Philadelphus lewisii Alice Eastwood 1921-7-21 10671 Humboldt Van Duzer River, on the road. Comment
  POM126105  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt At Eureka 0 Comment
  HSC75481  Phleum pratense J. O. Sawyer 1980-7-18 3628 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA10146  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  UC34068  Phleum pratense J. P. Tracy 1900-7-12 896 Humboldt immediate vicinity Eureka 0 Comment
  UC60870  Phlox adsurgens Mrs. M. H. Manning Humboldt Bair's Hill Hoopa Valley Comment
  HSC72818  Phlox diffusa M. A. Baker 1980-6-16 1943 Humboldt Near Onion Mtn. 1280 Comment
  HSC100895  Phlox douglasii Carl C. Marshall Jun 1886 349 Humboldt Trinity Summit. Comment
  HSC100598  Phlox gracilis Carl C. Marshall Apr 1887 373 Humboldt Hoopa Valley. Comment
  HSC15921  Phoradendron serotinum subsp. tomentosum H. D. Sumner 1959-7-13 Humboldt Dirt road to Hoopa 305 Comment
  JEPS26749  Phoradendron villosum W. L. Jepson 1932-7-24 16545 Humboldt ca. 6 1/2 mi. above & e. Garberville (from near rd. along summit of Mail Ridge) 914 Comment
  CAS-BOT-BC451997  Phyllospadix scouleri Robert F. Thorne 1957-9-3 19016 Humboldt At Abalone Point, Patrick's Point State Park Comment
  CAS-BOT-BC140582  Physocarpus capitatus Carl B. Wolf 1927-8-30 1227 Humboldt 2 mi. s. of Petrolia on the [Matole] Mattole River near point where road crosses river Comment
  JEPS44661  Physocarpus capitatus W. L. Jepson 1936-8-13 17894 Humboldt S Fork Eel River Philipsville (Franklin K. Lane grove) Comment
  JEPS44662  Physocarpus capitatus Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  RSA172348  Physocarpus capitatus Robert F. Thorne 1957-9-2 19000 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  CAS-BOT-BC78200  Picea sitchensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC93254  Picea sitchensis Gordon Leppig 1998-3-15 719 Humboldt Quarry Rd. off Jacoby Creek 98 Comment
  POM21764  Picea sitchensis L. R. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad. Comment
  SJSU2223  Picea sitchensis H. L. Buckalew 1959-7-10 Humboldt Prairie Creek Redwoods State Park, northweastern Humbollt County Comment
  UC136  Picea sitchensis J. P. Tracy 1901-4-17 Humboldt Samoa, Humboldt Bay Comment
  UC55646  Picea sitchensis J. Burtt Davy 1899-7-30 6186 Humboldt in gulches in back Ferndale; North Coast Ranges Comment
  JEPS46793  Pinus attenuata W. L. Jepson 1902-7-1 Humboldt trail to Trinity Summit from Hupa Valley Comment
  CAS-BOT-BC78380  Pinus contorta W. R. D. 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  POM21765  Pinus contorta var. contorta L. R. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad. Comment
  UC212990  Pinus monticola Mrs. F. A. Graham 1919-8-1 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC177186  Plagiobothrys nothofulvus Joseph P. Tracy 1913-6-13 4115 Humboldt opposite Buck Mountain (valley Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley Van Duzen River, Dinsmore's Ra 762 Comment
  UC1222220  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17161 Humboldt 1 mi ne town [sic] Comment
  JEPS60967  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1921-6-12 5825 Humboldt Butter Valley Northern Coast Ranges 152 Comment
  RSA178571  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1942-6-15 17142 Humboldt Miranda; along South Fork of Eel River. 122 Comment
  UC1222200  Plagiobothrys scouleri Joseph P. Tracy 1949-8-11 18452 Humboldt e of Korbel (at Hungry Hollow); Bald Mountain 762 Comment
  UC1222206  Plagiobothrys scouleri Joseph P. Tracy 1946-5-30 17538 Humboldt 2 mi so Bridgeville 457 Comment
  UCD124475  Plantago erecta Peter H. Raven 1963-5-15 18371 Humboldt Lanphere Ranch just west of Mad River Slough, near Arcata. Comment
  HSC54704  Platanthera dilatata Overton, Butler 1979-7-26 10030 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC54017  Platanthera dilatata var. leucostachys Griswold, Butler 1979-7-12 7161 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CAS-BOT-BC91636  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Northern Coast Region.. Valley of South Yager Creek. 762 Comment
  SEINET780340  Plectritis A. Baker 1980-5-24 1450 Humboldt Comment
  HSC77949  Plectritis congesta subsp. brachystemon Jimerson, Imper 1982-5-17 1439 Humboldt Near Ashfield Ridge. 822 Comment
  RSA178587  Plectritis congesta var. congesta Joseph P. Tracy 1950-5-6 18639 Humboldt At my cabin. Trinity River Valley, at Willow Creek. Comment
  UC1103799  Pleuropogon refractus Joseph P. Tracy 1936-8-7 15093 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  UC1258213  Pleuropogon refractus Paul But 1975-6-1 P 13 Humboldt about 10 mi n of Orick; Prairie Creek Redwood State Park Comment
  HSC10623  Poa annua Gene S. Van Horn 1962-5-2 10 Humboldt Near main house at 250 East 17th St., Arcata. 61 Comment
  UCD90579  Poa bolanderi A. H. Murphy 1951-6-25 68 Humboldt Snow Camp Meadows, ca. 8 miles e.n.e. of Kneeland. Comment
  HSC97639  Poa bulbosa Cara Witte 2007-5-22 77 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1398 Comment
  UCD90863  Poa compressa Burle J. Jones 1939-6-5 s.n. Humboldt Lolita. Comment
  HSC10679  Poa confinis L. M. Malloy 1965-4-23 46 Humboldt Samoa, sand dunes 1/4 mi. NW of the corner of Thunder Rd. and The Hard Way. Comment
  UC183532  Poa confinis Joseph P. Tracy 1905-4-30 2178 Humboldt Ocean Beach Humboldt Bay; North Coast Region Comment
  UC187226  Poa confinis Joseph P. Tracy 1910-4-24 3123 Humboldt Ocean Beach Humboldt Bay; North Coast Region Comment
  UCD91113  Poa howellii Don Hagar 1956-5-24 s.n. Humboldt Brush Mountain. 5 to 6 miles southwest of Willow Creek, eastern part of county. Comment
  UCD90523  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay. 30 Comment
  BLMAR301  Poa macrantha Jennifer Anthony-Wheeler 2002-6-15 301 Humboldt South Spit 6 Comment
  HSC39179  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1222 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  SEINET13390783 Image available Poa pratensis A. G. Vestal 1937-6-22 s.n. Humboldt Comment
  UCD91845  Poa pratensis Les Berry 1956-6-20 s.n. Humboldt May Ranch, Bridgeville. Comment
  HSC102232  Poa pratensis subsp. pratensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1153 Humboldt Patterson Meadows 1566 Comment
  UC249872  Poa pratensis subsp. pratensis Joseph P. Tracy 1923-6-3 6254 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC98601  Poa secunda subsp. secunda Cara Witte 2007-6-4 183 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC180500  Poa secunda subsp. secunda Joseph P. Tracy 1913-6-14 4120 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC1145118  Poa trivialis Joseph P. Tracy 1950-6-8 18723 Humboldt Bear Beaver Ridge 609 Comment
  HSC102948  Poa trivialis J. P. Smith Jun 2009 12601 Humboldt Arcata. Lawn weed Comment
  UC39714  Poa unilateralis Harley P. Chandler May, 1901 1140 Humboldt Humboldt Bay; North Coast Ranges 3 Comment
  UCD92128  Poa unilateralis Harley P. Chandler 1901-5-1 1140 Humboldt Humboldt Bay. 3 Comment
  HSC64159  Polygala californica J. O. Sawyer, K. A. Sawyer 1979-6-24 3405 Humboldt Slopes alongside Aikens Creek. 366 Comment
  SBBG93447  Polygala californica H. P. Chandler -Jun-1901 1328 Humboldt Hupa [Hoopa] Indian Reservation 152 Comment
  SD53201  Polygala californica Darley F. Howe 1962-5-21 3292 Humboldt 16 miles north of Garberville on #101 60 Comment
  UC275346  Polygala californica Joseph P. Tracy 1923-6-20 6333 Humboldt Briceland Northern Coast Ranges, Briceland 304 Comment
  HSC54520  Polygala cornuta Overton, Butler 1979-7-23 9448 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC72626  Polygala cornuta J. P. Smith, J. O. Sawyer 1977-7-1 9226 Humboldt Six Rivers National Forest, Bluff Creek Campground. 76 Comment
  UC668188  Polygala cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC165802  Polygala cornuta var. cornuta Joseph P. Tracy 1911-7-8 3447 Humboldt hill slopes at w side Trinity River (near Willow Creek); Northern Coast Ranges 152 Comment
  UC249655  Polygonum amphibium var. emersum Joseph P. Tracy 1922-9-3 6115 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  CDA2769  Polygonum capitatum Gordon Leppig, Sylvia Leppig 2000-4-16 1298 Humboldt Corner 17th and J Street, Arcata. Comment
  UC672966  Polygonum davisiae Joseph P. Tracy 1935-7-24 14181 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  HSC55269  Polygonum douglasii Overton, Butler 1979-8-2 12642 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC175842  Polygonum douglasii Joseph P. Tracy 1912-7-31 3941 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 Comment
  UCD100266  Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt Box Camp Trail, Trinity Summit. 1676 Comment
  UC205473  Polygonum minimum Joseph P. Tracy 1919-9-18 5235 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CAS-BOT-BC109185  Polygonum paronychia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  UC672979  Polygonum phytolaccifolium Joseph P. Tracy 1933-7-26 12921 Humboldt Grouse Mountain; around old cabin 1524 Comment
  UC176682  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1912-7-31 3924 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 Comment
  CDA37209  Polygonum polystachyum B. Villegas, Bruce Bryan 2009-10-6 s.n. Humboldt Eureka; 2nd Street at P Street. Comment
  CDA2916  Polygonum sachalinense T. C. Fuller 1968-7-3 17443 Humboldt West side of the south-bound lanes of Highway 101 freeway, just north of the South Bay Depot Road, Fields Landing. 0 Comment
  CAS-BOT-BC421009  Polygonum spergulariiforme Doris Kildale 1931-6-6 10872 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  POM302976  Polygonum spergulariiforme H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans. Comment
  POM118352  Polypodium glycyrrhiza Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  RSA183501  Polypodium glycyrrhiza H. S. Logsdon 1964-5-13 20 Humboldt 4.0 miles northeast of Orick at Boye s Prairie Comment
  UC1746694  Polypodium glycyrrhiza R. M. and A. F. Tryon Jun 1958 5560 Humboldt NW of Weott; S fork of the Eel River Comment
  CAS-BOT-BC72087  Polypodium scouleri T. G. W. s.n. Humboldt Arcata Comment
  HSC89486  Polypodium scouleri P. A. Daly 1986-3-12 68 Humboldt Trinidad Head, along trail 61 Comment
  POM232318  Polypodium scouleri I. L. Wiggins 1930-7-11 4686 Humboldt Near Samoa Comment
  UCSB26619  Polypodium scouleri Havlik, Neil 1968-8-21 Humboldt Samoa, west of Eureka 9 Comment
  HSC100394  Polypodium vulgare Carl C. Marshall Mar 1886 155 Humboldt Trees etc., on Mad River. Comment
  HSC10825  Polypogon interruptus J. P. Tracy 1927-7-16 8261 Humboldt Eureka 0 Comment
  UCSC000004  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile N.E. of Samoa 3 Comment
  SEINET4889908  Polypogon monspeliensis H. Ch 1901-1 1431 Humboldt North Coast Ranges, Klamath River 335 Comment
  UCD136543  Polystichum munitum Linda M. Barker 1976-4-30 1414 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  RSA430488  Polystichum munitum Lyman Benson 1928-7-9 409 Humboldt Weott Ranger Station. Seaward N coast. Watershed- South Fork Eel Rivers. 61 Comment
  UCD136553  Polystichum munitum K. Esau 1934-5-8 s.n. Humboldt Near Fort Seward. 457 Comment
  UC512087  Populus trichocarpa Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1220 Humboldt in pine barrens near the coast 1 mi n Samoa 0 Comment
  HSC36290  Potamogeton natans W. C. Vinyard 1974-1 Humboldt N Clam Beach Pond Comment
  HSC59104  Potamogeton natans Clark L. Miller 1979-5-24 6154 Humboldt Clam beach ponds off Hwy. 101 N of McKinleyville Comment
  HSC45347  Potamogeton natans R. York 1978-4-8 125 Humboldt Between Arcata and Eureka along Hwy. 101 0 Comment
  UCSB24728  Potamogeton natans Keefe, Joseph 1967-7-8 Humboldt east side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka. 6 Comment
  HSC90260  Potentilla anserina subsp. pacifica Jean Hanson 1980-5-24 71 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka. W end of island Comment
  POM275246  Potentilla anserina var. grandis Lyman D. Benson 1928-7-10 437 Humboldt Clam Beach, Trinidad. Sand dunes, along a small stream. 6 Comment
  RSA245008  Potentilla anserina var. grandis Jerry Parker 1968-10-13 111 Humboldt Coastal Strand near the mouth of the Mad River. Comment
  HSC102525  Potentilla drummondii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1512 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC420576  Potentilla gracilis P. E. Goddard 1906-6 668 Humboldt Lasseck Pk Comment
  HSC44757  Potentilla gracilis Maralyn O'Meara 1972-6-8 82 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC75969  Potentilla gracilis var. fastigiata Overton, Butler 1979-8-2 12596 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC73575  Prosartes hookeri Gail Newton 1980-7-14 1513 Humboldt Near Deadman Ridge 1097 Comment
  HSC15466  Prosartes smithii J. F. Knezevich 1968-5-21 446 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  CAS-BOT-BC517384  Prosartes smithii Doris K. Kildale 1927-3-20 2927 Humboldt South Fork of Eel River Comment
  CAS-BOT-BC517512  Prosartes smithii Alice Eastwood 1907-4-22 29 Humboldt Part Trinidad Comment
  SD39117  Prosartes smithii Marie Cummings 1933-4-18 21 Humboldt Russ Park, near Ferndale. Comment
  HSC46018  Prunella vulgaris Catherine Chin 1978-8-5 96 Humboldt Arcata, side road on Spring St., between 16th and 17th Sts. Comment
  HSC98985  Prunella vulgaris Cara Witte 2007-7-3 410 Humboldt Brays Opening on National Forest 1. 1/2 mile north of intersection with 4N38. 1392 Comment
  UC1174866  Prunella vulgaris var. lanceolata P. C. Everett and E. K. Balls 1959-10-25 23961 Humboldt U.S. Hwy 299 to Arcata 14 mi w Willow Creek; w of Willow Creek 502 Comment
  UC1402063  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-18 620 -30 Humboldt Comment
  BLMAR465  Prunus emarginata Jennifer Anthony-Wheeler 2004-11-8 465 Humboldt Titlow Hill, growing along Titlow Hill road off Hwy 299 914 Comment
  HSC102105  Prunus emarginata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1008 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC48761  Prunus emarginata Brad Klipfel 1973-6-10 97 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55996  Prunus emarginata Overton, Butler 1979-7-31 11433 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC73957  Prunus emarginata Gail Newton 1980-8-10 2012 Humboldt Near Blake Mtn. 1798 Comment
  UC154253  Prunus emarginata Joseph P. Tracy 1906-4-15 2402 Humboldt near Blue Lake (on Mad River); Northern Coast Ranges, Mad River 30 Comment
  UC604671  Pseudognaphalium californicum Joseph P. Tracy 1938-6-20 15971 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC357602  Pseudognaphalium stramineum Carl B. Wolf 1927-8-29 1223 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  UC1223106  Pseudognaphalium thermale Joseph P. Tracy 1948-9-5 18184 Humboldt on ridge 2 mi e Grove's Prairie (near Elk Camp on the Grizzly Camp Road); Trinity Summit 1524 Comment
  CAS-BOT-BC80113  Pseudotsuga menziesii Joseph P. Tracy 1949-4-3 18278 Humboldt Trinidad 60 Comment
  HSC30338  Pseudotsuga menziesii var. menziesii Dale R. Gradek 1974-5-2 34 Humboldt 0.25 mi N of intersection of Dows Prairie Rd. and Grange Rd. Comment
  HSC40003  Pseudotsuga menziesii var. menziesii Linda M. Barker 1976-9-3 1689 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC165838  Psilocarphus oregonus Joseph P. Tracy 1908-6 2798 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1222910  Psilocarphus oregonus Joseph P. Tracy 1946-5-30 17542 Humboldt 5 mi e Carlotta (by old Strong's District School House, Riverside Park nearby) 60 Comment
  UC169084  Psilocarphus oregonus Joseph P. Tracy 1912-7-30 3890 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC169085  Psilocarphus tenellus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3592 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC100526  Psoralea physodes Carl C. Marshall Jun 1887 485 Humboldt Jewett's. Comment
  HSC55176  Pteridium aquilinum var. pubescens Gilbert Muth 1979-8-1 12178 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC41289  Pteridium aquilinum var. pubescens Brad Klipfel 1974-7-27 483 Humboldt Horse Mtn. in draw to the N of the towers Comment
  UC503059  Pteridium aquilinum var. pubescens Joseph P. Tracy 1932-7-20 10732 Humboldt Corral Prairie Trinity Summit; Klamath Mts 1524 Comment
  UC314641  Pterospora andromedea Joseph P. Tracy 1926-6-27 7673 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  CAS-BOT-BC460597  Pyrola aphylla Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  CAS-BOT-BC460600  Pyrola aphylla Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC162733  Pyrola picta Joseph P. Tracy 1911-7-7 3437 Humboldt Brannan Mountain, viz. Ridge North of Willow Creek, between Willow and Campbell Creeks near the Summit 1219 Comment
  CAS-BOT-BC466033  Pyrola picta Doris Kildale Gillespie 1931-6-7 10658 Humboldt South Fork Mt., Black Lookout 1726 Comment
  SEINET200715  Pyrola picta Joseeph P. Tracy 1926-6-6 7556 Humboldt Near summit on road west from Hoopa to Bair's Comment
  UCR32154  Quercus chrysolepis David J. Keil 1983-7-1 17275 Humboldt North Coast Range, Bull Creek Flats Road, 2.5 mi. NE of Honeydew Comment
  UC1196523  Quercus garryana Joseph P. Tracy 1920-10-9 5402 Humboldt Bald Mountain, at Hungry Hill Northern Coast Ranges 762 Comment
  UC419047  Quercus garryana H. E. Parks, J. P. Tracy 1930-9-15 764 Humboldt Bald Hills Kneeland Comment
  JEPS37758  Quercus kelloggii W. L. Jepson 1903-6 2203 Humboldt Harris Ridge 1127 Comment
  CAS-BOT-BC104332  Quercus sadleriana Clarence R. Quick 1959-6-24 59 -41 Humboldt Bee Mt. ca. 12 miles SW of Orleans Comment
  HSC76361  Quercus vacciniifolia Denis Kearns 1981-7-6 54 Humboldt Near Mosquito Lake 1122 Comment
  RSA178538  Quercus wislizeni Joseph P. Tracy 1950-6-15 18796 Humboldt Mail Ridge, north of Harris 7 miles Comment
  HSC100904  Ranunculus Carl C. Marshall Apr 1886 87 Humboldt Humboldt Hill. Comment
  RSA670131  Ranunculus J. M. Tucker 1948-9-4 1864 Humboldt Ferndale, Humboldt County Fair Grounds Comment
  JEPS93972  Ranunculus californicus Vernon Oswald 1998-4-16 8912 Humboldt n. end Trinidad State Beach (Elk Head, bluffs overlooking ocean) 30 Comment
  BLMAR364  Ranunculus californicus Jennifer Anthony-Wheeler 2003-5-21 364 Humboldt South Spit, Disturbed ground on west side 3 Comment
  HSC41655  Ranunculus flammula var. ovalis J. O. Sawyer 1977-4-25 3043 Humboldt N side of Buttermilk Lane in Sunny Brae across from house 1425 Comment
  UC1196212  Ranunculus occidentalis J. P. Tracy 1901-5-5 1066 Humboldt Immediate vicinity of Eureka 0 Comment
  UC162870  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1908-6-7 2614 Humboldt Butler Valley Northern Coast Ranges, Mad River 152 Comment
  POM118708  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CDA3483  Ranunculus repens T. C. Fuller 1966-5-24 14709 Humboldt Arcata Bottoms, 0.75 mile west of Highway 101, 2 miles north of Arcata. 0 Comment
  HSC64220  Ranunculus uncinatus J. O. Sawyer, M. A. Ericksen 1979-6-23 3381 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC31570  Ranunculus uncinatus var. parviflorus Glenn McGourty 1974-5-11 40 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  UC1193393  Rhamnus californica R. H. Neuns 1950-10-9 134 Humboldt near Thorne 609 Comment
  UC61091  Rhamnus californica subsp. californica Harley P. Chandler Jun 1901 1453 Humboldt Klamath River North Coast Ranges Comment
  RSA171022  Rhamnus californica subsp. occidentalis Robert F. Thorne 1957-9-2 19008 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  JEPS41950  Rhamnus purshiana W. L. Jepson 1902-6-24 1932 Humboldt Angel's Ranch to Korbel 365 Comment
  UC630477  Rhamnus purshiana H. E. and S. T. Parks 1935-5-1 5541 Humboldt Spruce Cove Trinidad 64 Comment
  UC615053  Rhamnus purshiana Beryl O. Schreiber 1934-6-5 1141 Humboldt Gray's Resort Redwood Creek Comment
  CAS-BOT-BC58192  Rhododendron columbianum Doris K. Kildale 1927-6-26 3593 Humboldt Patick's Point. Comment
  HSC44734  Rhododendron columbianum Maralyn O'Meara 1971-10-25 53 Humboldt S side of Big Lagoon Comment
  HSC31567  Rhododendron macrophyllum Glenn McGourty 1974-5-11 37 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  CAS-BOT-BC199710  Rhododendron occidentale Doris K. Kildale 1929-4-21 7431 Humboldt Patrick's [Patrick] Creek - between Trinidad & Big Lagoon Comment
  UC22135  Rhododendron occidentale Harley P. Chandler June, 1901 1448 Humboldt Klamath River; North Coast Ranges, Klamath River 457 Comment
  UCSB18968  Rhododendron occidentale Jensen, Karen 1965-4-14 Humboldt Along U.S. Highway 101, 1 km. S of Trinidad 45 Comment
  CAS-BOT-BC200387  Rhododendron occidentale var. paludosum Harley P. Chandler 1901-6-1 1448 Humboldt Klamath River 457 Comment
  HSC97159  Ribes binominatum Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 8 Humboldt 12.5 mi. S of Hwy. 299 on USFS Rd. NF1 1555 Comment
  HSC97303  Ribes bracteosum M. Mesler 2007-3-14 738 Humboldt Along Hwy. 101 at Orick Refuse Site (E side of Hwy.) 9 Comment
  UC667032  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt along Trinity Highway Willow Creek Canyon 762 Comment
  CAS-BOT-BC108912  Ribes divaricatum var. pubiflorum H. E. McMinn 1922-8-5 345 Humboldt Along Van Duzen River. Comment
  UCSB24363  Ribes divaricatum var. pubiflorum Tracy, Joseph 1939-4-27 Humboldt mouth of Little River; at edge of sand dunes 6 Comment
  BLMAR564  Ribes inerme Jennifer Wheeler 2010-3-29 564 Humboldt Headwaters Forest Reserve, along Elk River Trail within first mile, east side trail 42 Comment
  HSC97310  Ribes laxiflorum M. Mesler 2007-5-23 744 Humboldt Near Trinidad, trail from Mill Creek to Elk Head, along the creek near the beach. 23 Comment
  HSC103205  Ribes lobbii Jade Paget-Seekins 2010-6-30 33 Humboldt Grouse Mountain on Forest Route 1 at the fork with Grouse Mountain Road. 1578 Comment
  UC1198927  Ribes lobbii Joseph P. Tracy 1913-7-20 4385 Humboldt near summit of ridge between Three Creeks and Redwood Creek (Three Creeks side); Northern Coast Ranges 1066 Comment
  HSC103132  Ribes lobbii M. Mesler 2009-9-7 816 Humboldt Trail to Mill Creek Lakes, above Hoopa 1646 Comment
  CAS-BOT-BC206034  Ribes menziesii Alice Eastwood 1907-4-21 13 Humboldt Port Trinidad Comment
  CAS-BOT-BC206038  Ribes menziesii Doris K. Kildale 1926-3-25 1627 Humboldt Liscom Hills, Lower Mad River 26 Comment
  HSC20317  Ribes menziesii G. B. Kendall 1965-5-16 33 Humboldt Trinidad State Park Comment
  UC1541331  Ribes menziesii Harold E. Parks April 1933 4402 Humboldt vicinity Trinidad (type locality) Comment
  RSA0021767  Ribes menziesii Joseph P. Tracy 1948-3-6 17954 Humboldt Trinidad. 61 Comment
  UC1193213  Ribes roezlii K. Cuff 1950-10-11 129 Humboldt 7 mi n Honeydew; Quad. 28A4 1005 Comment
  HSC103225  Ribes roezlii var. cruentum Jade Paget-Seekins 2010-6-23 23 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC100494  Ribes sanguineum Carl C. Marshall Apr 1885 135 Humboldt Near the coast everywhere. Comment
  HSC40117  Ribes sanguineum Dan O'Brien 1962-5-19 Humboldt 4 1/2 mi. E on Fickle Hill Rd. Comment
  LA205509  Ribes sanguineum Carl Epling; William Robison 1935-7-22 sn Humboldt Patrick's Point Comment
  UC11646 Image available Ribes sanguineum Harley P. Chandler June, 1901 1287 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC1541332 Image available Ribes sanguineum Harold E. Parks 1930-5-25 868 Humboldt Laribee Valley 762 Comment
  RSA0018244  Ribes sanguineum S. Ganley 1971-5-29 661 Humboldt Highway 299, along Trinity River. 457 Comment
  CAS-BOT-BC144684  Ribes sanguineum var. glutinosum Doris K. Kildale 1926-3-25 1624 Humboldt Liscom Hill. lower Mad River 30 Comment
  CAS-BOT-BC144688  Ribes sanguineum var. glutinosum Joseph Andorfer Ewan 1937-7-1 10444 Humboldt on river bench. Stephan Grove on Eel River, n. of Garberville Comment
  JEPS49335 Image available Ribes sanguineum var. glutinosum Joseph P. Tracy 1925-4-5 6960 Humboldt at crossing of Kneeland Road (Lawrence Creek); Northern Coast Ranges 609 Comment
  UC667051  Ribes sanguineum var. glutinosum Joseph P. Tracy 1933-3-26 10943 Humboldt Big Lagoon 60 Comment
  UC921844  Ribes sanguineum var. glutinosum C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  HSC103229  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-23 26 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC103199  Ribes viscosissimum Jade Paget-Seekins 2010-7-5 36 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  UC1198918  Ribes viscosissimum Joseph P. Tracy 1932-7-15 10606 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UC492214  Ribes viscosissimum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8908 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  JEPS1245  Romanzoffia californica Joseph P. Tracy 1924-4-27 6645 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UC552250  Romanzoffia californica Joseph P. Tracy 1923-4-29 6196 Humboldt Kneeland Prairie 762 Comment
  UC552252  Romanzoffia californica Joseph P. Tracy 1924-4-27 6645 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  HSC100500  Romanzoffia sitchensis Carl C. Marshall Apr 1886 196 Humboldt Damp rocks, Jacoby Creek. Comment
  UC1199219  Rorippa curvisiliqua Harold E. Parks and Joseph P. Tracy 1935-6-16 11275 Humboldt lower nw slopes Buck Mountain; lower nw slopes Buck Mountain 792 Comment
  POM312447  Rorippa curvisiliqua Malcolm A. Nobs, S. Galen Smith 1949-8-9 1238 Humboldt Marshy pond on south side of the town of Blue Lake. Comment
  UC198651  Rorippa curvisiliqua Joseph P. Tracy 1916-5-31 4693 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, along Eel River 60 Comment
  HSC41003  Rosa californica J. O. Sawyer 1975-10-17 2714 Humboldt Near Box Camp on Big Hill Rd. to N Trinity Mtn. Comment
  POM161058  Rosa californica Joseph P. Tracy 1923-9-16 6550 Humboldt Trinity River Valley, Near the south fork Comment
  UC667042  Rosa californica Joseph P. Tracy 1933-6-25 12617 Humboldt Camp Grant Eel River (along river) 60 Comment
  HSC36578  Rosa gymnocarpa Thomas W. Nelson, James Nelson 1975-9-3 2198 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  UC1222307  Rosa gymnocarpa Joseph P. Tracy 1950-8-4 19267 Humboldt ne Lookout (at head of creek); Bull Creek State Park, Grasshopper Peak, Canoe Creek Comment
  UC1927277  Rosa luciae Barbara Ertter with Tom Nelson and Dick Brummitt 2004-7-2 18404 Humboldt Eureka, at edge of 14th Street where road crosses large drainage (opposite 1404 14th St.) Comment
  CAS-BOT-BC146833  Rosa nutkana M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  CAS-BOT-BC146835  Rosa nutkana Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC146840  Rosa nutkana Volney Rattan 1878-1-1 s.n. Humboldt Mad River Comment
  SEINET11910997  Rosa nutkana F. H. Utech 1986-1 86 -392 Humboldt ca 5 mi N on Kings Peak Road, from junction with Shelter Cove Road, near Tolkan Recreation Area 480 Comment
  UC902162  Rosa nutkana var. nutkana Joseph P. Tracy 1947-8-10 17883 Humboldt 2 mi s of town Field's Landing 6 Comment
  CAS-BOT-BC148343  Rosa pisocarpa Joseph P. Tracy 1947-8-24 17890 Humboldt Trinity Summit, near Box Camp in open fir timber. 1524 Comment
  CAS-BOT-BC148345  Rosa pisocarpa Joseph P. Tracy 1933-7-25 12898 Humboldt Grouse mt. 1524 Comment
  HSC35815  Rosa rubiginosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1921 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  HSC37234  Rosa rubiginosa Lon Hall 1975-6-19 409 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  CAS-BOT-BC148223  Rosa spithamea Volney Rattan 1883-6-1 s.n. Humboldt Trinity River, from Hyampom to Hoopa Comment
  RSA43861  Rubus leucodermis H. M. Pollard 1948-8-9 s.n. Humboldt New [near] Orleans. Comment
  RSA89562  Rubus leucodermis Philip A. Munz 1954-7-23 19862 Humboldt About 6 miles E of Dinsmore's. 762 Comment
  UC492168  Rubus leucodermis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8905 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC147244  Rubus parviflorus Doris K. Kildale 1926-3-26 1635 Humboldt Old Kneeland Road 609 Comment
  CAS-BOT-BC147248  Rubus parviflorus Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  HSC22040  Rubus parviflorus B. D. Rogers, D. E. Anderson 1965-5-1 514 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  HSC56189  Rubus parviflorus Gilbert Muth 1979-8-1 12126 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC97621  Rubus parviflorus Cara Witte 2007-6-5 212 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  NY1043364  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  SEINET10771638  Rubus parviflorus Benjamin W. van Ee, Melissa A. van Ee; Pieter J. van Ee; Juliana M. van Ee 2014-1-1 van Ee 1835 Humboldt By pull-out just W of Hwy 101 on the E shore of Big Lagoon, N of Big Lagoon County Park. 5 Comment
  UC154202  Rubus parviflorus Joseph P. Tracy 1908-6 2732 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCR32042  Rubus parviflorus David J. Keil 1983-7-1 17292 Humboldt Between Ferndale & Bear River Ridge Road along Mattole Road Comment
  CAS-BOT-BC156722  Rubus spectabilis Alice Eastwood 1939-3-19 s.n. Humboldt Garden Club of America Grove Comment
  CHSC24872  Rubus spectabilis P. Goldman 1976-3-28 7 Humboldt Ca. 1 mi into Fern Canyon, Fern Canyon State Park, ca. 100 mi s of Cresent City. 0 Comment
  UC461843  Rubus spectabilis Chestnut and Drew July 1888 Humboldt near Arcata Comment
  HSC100639  Rubus ursinus Carl C. Marshall Mar 1886 138 Humboldt Everywhere. Comment
  HSC19698  Rubus ursinus T. M. Mingo May 1965 Humboldt W edge of Big Lagoon Bog Comment
  HSC39999  Rubus ursinus J. O. Sawyer 1970-6-27 2306 Humboldt Site 318. 1494 Comment
  HSC99000  Rubus ursinus subsp. ursinus Cara Witte 2008-7-16 906 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  HSC79444  Rumex acetosella Kenneth Clark 1980-3-27 549 Humboldt Open areas and terraces above Dead Man's Gulch 107 Comment
  POM280484  Rumex acetosella Lyman Benson 1928-7-11 s.n. Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  CAS-BOT-BC421750  Rumex conglomeratus Carl B. Wolf 1927-8-30 1231 Humboldt 2 mi. s. of Petrolia on Matole River near point where road crosses river Comment
  HSC34977  Rumex crassus Thomas W. Nelson 1974-9-13 1712 Humboldt King Salmon area Comment
  UCD101126  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC672923  Rumex maritimus Joseph P. Tracy 1940-10-5 16741 Humboldt Mouth of Little River 6 Comment
  UC672875  Ruppia cirrhosa H. E. Parks and Joseph P. Tracy 1928-9-8 8505 Humboldt Big Lagoon 3 Comment
  UC672874  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 Comment
  CAS-BOT-BC454157  Ruppia maritima Malcom A. Nobs; S. Galen Smith 1949-8-3 1181 Humboldt Near mouth of the Elk River on Highway 101, ca. 4 miles south of Eureka Comment
  HSC17818  Ruppia maritima R. W. Spjut 1968-10-26 227 Humboldt E edges of the salt water at Big Lagoon near the launching ramp area Comment
  CAS-BOT-BC239838  Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 17267 Humboldt At Hungry Hollow, on Bald Mountain 609 Comment
  UC709432 Image available Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 17267 Humboldt sheep pasture near Hungry Hollow on Bald Mt. 609 Comment
  UCD92343  Rytidosperma penicillatum Ray Evans 1956-7-19 s.n. Humboldt Bear River, 3 miles east of Capetown. Comment
  UC275481  Sagina apetala Joseph P. Tracy 1925-5-30 7015 Humboldt at Kemp's Maple Grove Ranch Bridgeville; Northern Coast Ranges, , Kemp's Maple Grove Ranch 228 Comment
  UC1115830  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1939-4-18 16212 Humboldt Garberville 152 Comment
  HSC4064  Sagina maxima subsp. crassicaulis D. E. Anderson 1961-9-13 1813 Humboldt Trinidad Beach Comment
  UC512022  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1336 Humboldt 1 mi below bridge on Trinity Hwy. (on ...bank above Trinity R.) 152 Comment
  UC519381  Salix exigua var. hindsiana Joseph P. Tracy 1933-5-19 12203 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC104117  Salix hindsiana Doris K. Kildale 1926-9-19 2804 Humboldt Fort Seward 98 Comment
  CAS-BOT-BC106853  Salix hookeriana Jim Davis 1933-4-25 8 Humboldt Samoa Comment
  HSC19950  Salix hookeriana H. E. Parks Aug 1931 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  HSC19952  Salix hookeriana H. E. Parks 1931-5-12 952 Humboldt Samoa, Humboldt Bay 0 Comment
  HSC38176  Salix hookeriana Thomas W. Nelson 1976-3-5 3286 Humboldt Beside Martin's Slough just upstream from Eureka Muni Golf Course Comment
  HSC40870  Salix hookeriana Linda M. Barker 1976-4-13 1383 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC96617  Salix hookeriana Gordon Leppig 2005-4-8 2203 Humboldt N spit, S end of Peninsula Dr. 3 Comment
  JEPS12961  Salix hookeriana Joseph P. Tracy 1931-8-23 9622 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  JEPS12962  Salix hookeriana Joseph P. Tracy 1931-8-23 9619 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  RSA239712  Salix hookeriana Larry E. DeBuhr 1973-4-23 995 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  UC469114  Salix hookeriana Joseph P. Tracy 1931-8-23 9622 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC469115  Salix hookeriana Joseph P. Tracy 1931-8-23 9622 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC481270  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  UC481398  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (bank of river) 10 Comment
  UC490457  Salix hookeriana Joseph P. Tracy 1932-5-10 9953 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC492336  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1102 Humboldt Little River Lagoon Trinidad Comment
  UC512116  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1201 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  CDA39527  Salix hookeriana Gordon Leppig 1999-4-15 1120 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  UC1225918  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt meadow at Box Camp Box Camp; Trinity Summit 1463 Comment
  UC490526  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9795 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC495617  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1931-10-30 10903 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  CHSC96698  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC96597  Salix lasiolepis Gordon Leppig 2003-2-22 1812 Humboldt Arcata Marsh, NE corner of log pond 3 Comment
  HSC98523  Salix lasiolepis Cara Witte 2007-7-3 409 Humboldt White Oak Opening. 1242 Comment
  UC1196649  Salix lasiolepis Joseph P. Tracy 1933-11-29 13129 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC1196659  Salix lasiolepis Joseph P. Tracy 1932-5-17 10078 Humboldt Willow Creek North Coast Ranges, Trinity River 152 Comment
  UC1225927  Salix lasiolepis Joseph P. Tracy 1947-6-28 17755 Humboldt Bridgeville Van Duzen River 198 Comment
  UC275524  Salix lasiolepis Joseph P. Tracy 1923-4-15 6189 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469424  Salix lasiolepis Joseph P. Tracy 1931-8-16 9614 Humboldt vicinity of Garberbille; Northern Coast Ranges 121 Comment
  UC469425  Salix lasiolepis Joseph P. Tracy 1931-3-31 9328 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469436  Salix lasiolepis Joseph P. Tracy 1931-10-12 9730 Humboldt lower foothills of n.w. slope Buck Mt.; North Coast Ranges, Buck Mt. 762 Comment
  UC471107  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC490463  Salix lasiolepis Joseph P. Tracy 1932-9-5 10765 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC490544  Salix lasiolepis Joseph P. Tracy 1932-5-10 9958 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC490545  Salix lasiolepis Joseph P. Tracy 1932-4-24 9807 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC506344  Salix lasiolepis Joseph P. Tracy 1933-3-19 10932 Humboldt Blue Slide, on Van Duzen River 228 Comment
  UC511983  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  CDA39556  Salix lasiolepis Gordon Leppig 1999-4-15 1123 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  HSC20059  Salix melanopsis H. E. Parks 1931-5-14 961 Humboldt Van Duzen River, between Alton and Carlotta 15 Comment
  JEPS14755  Salix melanopsis Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10095 Humboldt Trinity River near Willow Creek; North Coast Ranges 152 Comment
  LA208934  Salix melanopsis Harold E. Parks; 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  LA208935  Salix melanopsis Harold E. Parks; 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  POM219691  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  RSA171964  Salix melanopsis Robert F. Thorne 1957-9-2 18986 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  SBBG57930  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 972 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  SBBG57953  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 967 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  SD978  Salix melanopsis Harold E. Parks 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC469446  Salix melanopsis Joseph P. Tracy 1931-5-3 9343 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC481170  Salix melanopsis Harold E. Parks 1931-8-25 1061 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC481267  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Little River Lagoon Comment
  UC481309  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 973 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481826  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC490557  Salix melanopsis Joseph P. Tracy 1932-5-10 9961 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490563  Salix melanopsis Joseph P. Tracy 1932-5-1 9850 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R., Alton 30 Comment
  UC512019  Salix melanopsis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1339 Humboldt pond at Willow Creek (Graham Ranch) near junction with Trinity R.; Willow Creek 152 Comment
  CAS-BOT-BC129170  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon 609 Comment
  HSC20087  Salix scouleriana D. Sutherland, R. Spellenberg, A. Sylvester 1966-3-27 1359 Humboldt 1 mi. E of N Fork of the Mad River along Hwy. 299 Comment
  HSC20091  Salix scouleriana H. E. Parks Feb 1933 1151 Humboldt Spruce Cove, Trinidad Comment
  HSC56010  Salix scouleriana Gilbert Muth 1979-7-31 11493 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  LA208917  Salix scouleriana Harold E. Parks; 1931-5-12 951 Humboldt Bishop Pine Lodge; Trinidad 150.0 Comment
  RSA47087  Salix scouleriana Doris K. Kildale 1926-9-5 2637 Humboldt On trail between Goat Camp and Red Peak, Lassack's Peaks 1677 Comment
  UC1196694  Salix scouleriana Joseph P. Tracy 1932-10-12 10876 Humboldt along S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 91 Comment
  CAS-BOT-BC128999  Salix sitchensis Harold E. Parks 1931-3-26 906 Humboldt Alton, on Van Duzen River 15 Comment
  HSC20116  Salix sitchensis Theodore J. Crovello 1965-4-8 669 Humboldt Along Lost Man Creek at junction with Hwy. 101, 2.5 mi. S of turnoff to Prairie Creek Redwoods State Park Comment
  HSC36284  Salix sitchensis R. W. Becking, Thomas Overturf 1975-6-26 705 Humboldt Mad River, 1 mi. S of Blue Lake 21 Comment
  HSC38183  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-5 3283 Humboldt Along S fork of Martins Slough just upstream from Eureka Muni Golf Course Comment
  HSC79545  Salix sitchensis Kenneth Clark 1980-3-24 546 Humboldt Alluvial terrace of Dead Man's Gulch 15 Comment
  UC144108  Salix sitchensis Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC203992  Salix sitchensis Joseph P. Tracy 1918-4-13 4869 Humboldt Jacoby Creek Quarry; Northern Coast Ranges, Jacoby Creek Quarry 91 Comment
  UC302154  Salix sitchensis Joseph P. Tracy 1926-2-21 7364 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC302155  Salix sitchensis Joseph P. Tracy 1926-3-14 7392 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC490489  Salix sitchensis Joseph P. Tracy 1932-5-10 9955 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 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
  UC490535  Salix sitchensis Joseph P. Tracy 1932-7-13 10512 Humboldt at Corral Prairie Corral Prairie; Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC506363  Salix sitchensis Joseph P. Tracy 1933-3-19 10929 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  UC1173598  Salix tracyi Joseph P. Tracy 1936-3-29 14785 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  RSA28377  Sambucus callicarpa E. K. Balls, P. C. Everett 1953-10-12 18633 Humboldt moist ditches, road to Crannell, 0.5 mi. E from Hwy 101, near first overhead bridge. 15 Comment
  SBBG7380  Sambucus nigra subsp. caerulea K. K. Muller 1954-6-20 627 Humboldt 3 mi S of Scotia Comment
  CAS-BOT-BC235120  Sambucus racemosa var. racemosa Doris K. Kildale 1926-3-26 1632 Humboldt Kneeland Road - old road 609 Comment
  UC21328  Sanicula arctopoides Harley P. Chandler May, 1901 1134 Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  HSC100691  Sanicula bipinnata Carl C. Marshall 432 Humboldt Spruce Grove. Comment
  UC1197110  Sanicula bipinnatifida Joseph P. Tracy 1928-6-24 8461 Humboldt Valley of South Yager Creek 762 Comment
  HSC100692  Sanicula bipinnatifida Carl C. Marshall Apr 1886 184 Humboldt Hill at Scottsville. Comment
  HSC38937  Sanicula crassicaulis Linda M. Barker 1976-5-13 1485 Humboldt 3 mi. W of Arcata. Comment
  HSC39448  Sanicula crassicaulis Linda M. Barker 1976-8-2 1669 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC82108  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1980-5-25 5253 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 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
  BLMAR128  Sanicula crassicaulis Jennifer Anthony-Wheeler 1996-4-3 128 Humboldt Richardson ' s grv., growing along rdside in doug-fir forest 518 Comment
  HSC21636  Sanicula crassicaulis D. E. Anderson 1962-5-1 2193 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  JEPS1012  Sanicula graveolens W. L. Jepson July 16 - 23, 1902 2046 Humboldt Trinity Summit 2133 Comment
  JEPS986  Sanicula laciniata Joseph P. Tracy 1923-3-17 6163 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC1197326  Sanicula tracyi Joseph P. Tracy 1913-6-19 4202 Humboldt opposite Buck Mtn (Dinsmore's Ranch); North Coast Ranges, Van Duzen River Valley 762 Comment
  UC1222809  Sanicula tracyi Joseph P. Tracy 1950-4-20 18606 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); along Van Duzen River, opposite Buck Mountain 762 Comment
  HSC71059  Sanicula tuberosa Thomas W. Nelson, Jane P. Nelson 1977-5-30 3393 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  HSC73669  Sanicula tuberosa M. A. Baker 1980-7-15 2957 Humboldt Near Whiting Ridge. 1341 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
  UC1197073  Scandix pecten-veneris Joseph P. Tracy 1923-3-17 6162 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  HSC21646  Scandix pecten-veneris Richard Steele 1962-4-9 15 Humboldt 1/2 mi. W of Humboldt State campus 15 Comment
  RSA0101646  Sceptridium multifidum Robert F. Thorne, Percy Everett 1965-8-7 35230 a Humboldt Big Lagoon. 3 Comment
  CAS-BOT-BC111333  Schoenoplectus acutus var. occidentalis Robert F. Thorne; P. Everett 1965-8-9 35283 Humboldt Big Lagoon 3 Comment
  CHSC92413  Schoenoplectus mucronatus Gordon Leppig 2004-9-1 2196 Humboldt Eel River at Holmes Flat. Gravel bar on east edge of river. UTM Zone 10, 420903E, 447244N. 400 Comment
  HSC93525  Schoenoplectus pungens Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  UC249743  Scirpus congdonii Joseph P. Tracy 1924-7-4 6707 Humboldt Snow Camp , Snow Camp (Northern Coast Ranges) 1371 Comment
  HSC15633  Scoliopus bigelovii D. E. Anderson 1963-3-23 2397 Humboldt Bald Mtn. Rd. Comment
  SEINET3991334  Scoliopus bigelovii Unknown 1941-4-26 16862 Humboldt Kneeland Prairie 762 Comment
  UCD139809  Scoliopus bigelovii K. Esau 1934-4-1 s.n. Humboldt Above Fort Seward. Comment
  HSC21127  Scrophularia californica R. I. Bonn 1965-5-9 44 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC91946  Scrophularia californica E. Mackey 1986-5-13 Humboldt Patrick's Point State Park, edge of coastal stand Comment
  RSA79453  Scrophularia californica F. W. Peirson 1926-7-13 7053 Humboldt Vicinity of Blue Lake, Mad River. Comment
  UC577335  Scutellaria antirrhinoides Joseph P. Tracy 1937-7-24 15520 Humboldt head of Devil'sw Hole (Trinity Summit); , Devil'sw Hole 1676 Comment
  UC604643  Scutellaria antirrhinoides Joseph P. Tracy 1938-6-9 15875 Humboldt near Blocksburg (2 mi s of town) 304 Comment
  UC249516  Scutellaria tuberosa Joseph P. Tracy 1922-4-30 6005 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC65852  Sedum laxum subsp. flavidum Gail Newton 1980-6-28 673 Humboldt Near Mad River Butte. 1536 Comment
  HSC57121  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-25 9867 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC72663  Sedum radiatum M. A. Baker 1980-6-26 2469 Humboldt Near Sims Creek 610 Comment
  UC169907  Sedum radiatum Harley P. Chandler June, 1901 1379 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation, Hupa Valley (Hupa Indian Reservation, North Coast Ranges) 152 Comment
  CAS-BOT-BC59127  Sedum spathulifolium Henry M. Pollard 1948-7-28 s.n. Humboldt River road near Orleans Comment
  JEPS28948  Sedum spathulifolium P. C. Hutchison 1961-5-22 2029 Humboldt ca 5.4 mi n Orleans (e side Klamath River, high bluff along road); e side Klamath River, n of Orleans Comment
  RSA0074768  Sedum spathulifolium Lyman Benson 1929-7-19 1858 Humboldt Mouth of Matole River. Comment
  RSA0081472  Sedum spathulifolium C. B. Wolf 1934-7-2 5858 Humboldt One mile from Bald Mt. on road to Korbel. 762 Comment
  UC1198832  Sedum spathulifolium Joseph P. Tracy 1911-7-4 3298 Humboldt along Willow Creek Northern Coast Ranges, Willow Creek, trib Trinity River (tributary of Trinity River near its mouth) 182 Comment
  OBI1550  Selaginella oregana Lawrence L. Kiefer 1963-8-6 769 Humboldt Patrick's Point State Park 61 Comment
  HSC82111  Senecio integerrimus var. major Thomas W. Nelson, Jane P. Nelson 1980-5-25 5250 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UC581708  Senecio integerrimus var. major Joseph P. Tracy 1935-7-28 14326 Humboldt Head of Devils Hold Trinity Summit 1828 Comment
  HSC90383  Senecio vulgaris Jean Hanson 1980-4-12 48 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island. Comment
  NY64458  Sequoia sempervirens J. P. Tracy 1935-12-8 14764 Humboldt Near Korbel 304.8 Comment
  SDSU2018  Sequoia sempervirens Wayne A. Bemis 1963-11-29 245 Humboldt 1289 D St, Arcata. 55 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
  CAS-BOT-BC85846  Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-1-16 s.n. Humboldt Along State Route 299 from Arcata to Redding, Domonstration Forest, Simpson Timber Company. Comment
  CDA14148  Setaria parviflora P. Haggard, G. Leppig 1998-2-4 Humboldt East of Arcata on North Bank Rd. above Mad River immed. E of Azalea Reserve. Stand approx. 25' in length, growing in recently disturbed area. Perennial, short-rhizomatous. 0 Comment
  RSA46485  Sherardia arvensis Doris K. Kildale 1925-6-7 691 Humboldt [Unspecified] Comment
  CAS-BOT-BC205574  Sidalcea malachroides Joseph P. Tracy 1936-5-17 14812 Humboldt Fickle Hill, 6 miles Southeast of Arcata 609 Comment
  CAS-BOT-BC205578  Sidalcea malachroides Doris K. Kildale 1928-5-27 5935 Humboldt Kneeland Prairie 853 Comment
  UC108878  Sidalcea malachroides J. W. Blankinship Jun 17 1893-Jun 20 1893 Humboldt Eureka , Hydesville (Hydesville) Comment
  UC18696  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  JEPS79985  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1928-6-24 8458 Humboldt between Bridgeville and head Yager (South Yager Creek); Northern Coast Ranges, South Yager Creek 762 Comment
  RSA46875  Silene californica Doris K. Kildale 1927-7-22 3816 Humboldt Lasseck s Peaks Comment
  SEINET11933919  Silene californica F. H. Utech 1986-1 86 -414 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  JEPS23253  Silene campanulata Joseph P. Tracy 1933-7-25 12871 Humboldt Grouse Mountain 1524 Comment
  UC668093  Silene campanulata Joseph P. Tracy 1932-7-18 10704 Humboldt head of Brett Hole Trinity Summit, head of Brett Hole 1828 Comment
  CAS-BOT-BC174881  Silene campanulata subsp. glandulosa Volney Rattan 1903-1-1 s.n. Humboldt Hoopa Valley Comment
  UC1618231  Silene gallica Barbara Ertter with Thomas J. Delendick 1987-5-16 6931 Humboldt ca 15 airmi e Arcata (Vista Point just w of Berry Summit on Hwy 299); Vista Point just w of Berry Summit 914 Comment
  UCD98674  Silene gallica H. E. Parks; S. T. Parks 1937-5-1 5938 Humboldt Trinidad, Spruce Cove. Comment
  HSC23821  Silene gallica R. A. Vanbianchi 1971-6-14 1 Humboldt Comment
  UC1198359  Silene hookeri Joseph P. Tracy 1911-7-7 3414 Humboldt between Willow and Campbell Creeks (near the summit Brannan Mountain, viz. ridge n of Willow Creek); Northern Coast Ranges, Brannan Mountain, n of Willow Creek 1219 Comment
  POM193013  Silene hookeri subsp. bolanderi H. E. Parks, Joseph P. Tracy 1930-5-25 0791 Humboldt Laribee Valley. 793 Comment
  CAS-BOT-BC389048  Silene laciniata subsp. californica Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC389054  Silene laciniata subsp. californica Doris K. Kildale 1928-6-24 7060 Humboldt Redwood Creek at Berry's 289 Comment
  HSC4164  Silene laciniata subsp. californica D. E. Anderson 1965-5-15 3709 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  CAS-BOT-BC389058  Silene laciniata subsp. californica H. E. Parks 1930-5-1 0751 Humboldt Vicinity of Hydesville Comment
  CAS-BOT-BC389059  Silene laciniata subsp. californica H. E. Parks 1930-5-1 0751 Humboldt Vicinity of Hydesville Comment
  HSC4163  Silene laciniata subsp. californica Francis Winter 1960-5-7 Humboldt 2 mi. E of Pine Ridge Summit along hwy. 610 Comment
  HSC79457  Silene laciniata subsp. californica Kenneth Clark 1980-6-14 665 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  HSC4219  Silene lemmonii J. P. Tracy 1932-7-12 10452 Humboldt Trinity Summit, near Corral Prairie 1585 Comment
  HSC45084  Sisymbrium officinale R. Sutherland 1978-4-25 1 .25478 Humboldt Mouth of Buck Creek 21 Comment
  HSC13918  Sisyrinchium bellum J. F. Knezevich 1968-5-23 457 Humboldt N of Trinidad at Big Lagoon 0 Comment
  HSC13933  Sisyrinchium californicum D. E. Anderson 1961-9-9 1798 Humboldt Big Lagoon County Park Comment
  HSC62981  Sisyrinchium californicum David Wheeler 1979-5-22 129 Humboldt Samoa, intersection of Samoa Blvd. and the railroad tracks near Arcata Redwood Co. Comment
  JEPS62108  Smilacina racemosa W. L. Jepson 1902-7-24 2114 Humboldt 1/2 mi below summit; Trinity Summit 2133 Comment
  UC666971  Smilacina stellata Joseph P. Tracy 1932-7-12 10455 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UCR45836  Smilacina stellata Barry Silver 1986-4-23 537 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  SEINET3888098  Smilacina stellata var. sessilifolia Thomas Nelson, James Nelson 1975-5-24 1844 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC89586  Solanum aviculare M. Roantree 1985-5-24 57 Humboldt W side of Trinidad Head, along trail Comment
  HSC79534  Solanum douglasii Kenneth Clark 1980-3-24 540 Humboldt Middle terrace of Dead Man's Gulch, Shelter Cove 76 Comment
  HSC37163  Solanum furcatum J. D. Ackerman 1974-5-25 257 Humboldt S Trinidad Beach, S of Trinidad Head Comment
  CAS-BOT-BC154206  Solanum umbelliferum L. Abrams 1918-6-16 7132 Humboldt Willow Creek Comment
  UC1222771  Solanum umbelliferum Joseph P. Tracy 1950-6-18 18851 Humboldt Briceland Comment
  CAS-BOT-BC154216  Solanum umbelliferum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1219 Comment
  CAS-BOT-BC365433  Solidago elongata Doris K. Kildale 1926-8-17 1211 Humboldt Trinity Summit 1828 Comment
  CDA8800  Solidago spathulata T. C. Fuller 1961-9-28 7051 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  UC249853  Solidago spathulata Joseph P. Tracy 1924-9-21 6901 Humboldt around Humboldt Bay (Eureka); Northern Coast Region, around Humboldt Bay, Eureka 15 Comment
  HSC6220  Sonchus asper Paul Shields 1955-6-16 Humboldt HSC Campus Comment
  CAS-BOT-BC374426  Sonchus asper Joseph P. Tracy 1936-8-24 15177 Humboldt Fickle Hill, 6 miles Southeast of Arcata 609 Comment
  HSC6217  Sonchus asper J. W. Johnson 1962-6-12 1410 Humboldt Arcata; between the foredunes, at foredune 39, Samoa Comment
  HSC36097  Sparganium angustifolium Ken Harrington 1973-10-7 Humboldt Log pond in Arcata Comment
  CHSC23303  Sparganium emersum subsp. emersum Robert F. Thorne; P. Everett 1965-8-9 35321 Humboldt Clam Beach County Park; along highway in ditch. 3 Comment
  CAS-BOT-BC235371  Spartina densiflora W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  POM313133  Spartina densiflora Malcolm A. Nobs, S. Galen Smith 1949-8-3 1180 Humboldt Marshes near mouth of Elk River, ca. 4 mi south of Eureka on Hwy 101 Comment
  UCD92986  Spartina foliosa Malcolm A. Nobs; S. Galen Smith 1949-8-3 1180 Humboldt near mouth of the Elk River, ca. 4 miles south of Eurkea on Highway 101. Comment
  HSC48419  Spartium junceum J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9923 Humboldt Hwy. 36 at Camp Creek Rd. 76 Comment
  HSC103560  Spartium junceum Spadoni 2002-6-26 70828 Humboldt Along roadside in the vicinity of Garberville. Comment
  CAS-BOT-BC389919  Spergula arvensis John H. Thomas 1966-3-19 11488 Humboldt Southern end of Big Lagoon, just inland from the coast between Eureka and Crescent City. Alt. above sea level Comment
  CHSC33022  Spergula arvensis subsp. arvensis James Payne Smith Jr. 1970-6-7 3805 Humboldt 0.6 miles north of Luffenholtz Beach along Calif. 1 near Trinidad. Comment
  HSC90751  Spergularia canadensis var. occidentalis Jean Hanson 1980-6-22 96 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  CAS-BOT-BC149620  Spiraea douglasii Harley P. Chandler 1901-5-1 1197 Humboldt Humboldt Bay 30 Comment
  JEPS45013  Spiraea douglasii W. L. Jepson 1902-6-24 1924 Humboldt Eureka to Arcata Comment
  UC194896  Spiranthes porrifolia Joseph P. Tracy 1916-6-19 4721 Humboldt Dobbyn Creek Northern Coast Ranges (swampy ground around a pond) 182 Comment
  JEPS62959  Stachys ajugoides Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 15 Comment
  JEPS63030  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  UC1602161  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UC577326  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UCLA70873  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UCLA71137  Stachys ajugoides var. rigida H. L. Mason 1932-7-21 7103 Humboldt Big Lagoon Comment
  JEPS62955  Stachys ajugoides var. rigida W. L. Jepson 1932-8-8 16481 Humboldt head Canoe Creek; Grasshopper Peak 1066 Comment
  JEPS63062  Stachys ajugoides var. rigida W. L. Jepson 1936-8-15 17901 Humboldt 2 mi e Carlotta Comment
  UCLA71142  Stachys ajugoides var. rigida Joseph P. Tracy 1938-8-21 16131 Humboldt in front of s end Stone Lagoon (along coast); Dry Lagoon 3 Comment
  CDA40999  Stachys chamissonis T. C. Fuller 1968-7-3 17444 Humboldt Southwest corner of the fairgrounds, Van Ness Ave. and 5th Street, Ferndale. 0 Comment
  SEINET10499253  Stachys chamissonis H. Lewis 1940-7-3 Lewis s.n. Humboldt Little river beach state park Comment
  HSC39166  Stachys mexicana D. E. Anderson, J. P. Smith 1971-6-28 - 1237 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC45596  Stachys mexicana Diane L. Reed 1978-5-27 139 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  RSA20856  Stachys rigida subsp. quercetorum Carl B. Wolf 1937-6-18 8896 Humboldt 1/2 mile S of Fortuna. 15 Comment
  RSA32011  Stachys rigida subsp. quercetorum A. A. Heller 1937-6-11 s.n. Humboldt Along U.S. Highway 101 between Bishop Pine Lodge and Big Lagoon. Comment
  UC161039  Stellaria littoralis J. P. Tracy 1909-5-16 2968 Humboldt near Trinidad 30 Comment
  HSC40427  Stellaria media Linda M. Barker 1976-2-22 1320 Humboldt 3 mi. W of Arcata Comment
  SEINET6905902  Stellaria nitens Joseph P. Tracy 1913-5-4 4045 Humboldt Kneeland Prairie, altitude 2500 feet. Comment
  HSC99013  Stipa lemmonii var. lemmonii Cara Witte 2007-6-7 231 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC58815  Stipa occidentalis var. californica G. L. Clifton, Griswold 1979-8-1 12055 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC44061  Streptanthus breweri Thomas W. Nelson 1977-7-4 3587 Humboldt W side of road N of Alder Springs, head of N Fork of Conley Creek 1494 Comment
  UC1541457  Streptanthus tortuosus H. E. Parks June 1951 Humboldt Rock Pile Knneland Comment
Read comments
Jun 21 2013
  UC902000  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1947-7-9 17845 Humboldt Horse Mountain 1432 Comment
  HSC57967  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-31 11685 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC58158  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-8-2 12218 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC57036  Streptopus amplexifolius Overton, Butler 1979-7-24 9671 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1103501  Streptopus amplexifolius var. americanus Joseph P. Tracy 1935-7-25 14230 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  HSC74293  Swertia radiata M. A. Baker 1980-7-22 3084 Humboldt Near Salmon Mtn. 1820 Comment
  UC198632  Swertia radiata Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  HSC56382  Symphoricarpos albus var. laevigatus Griswold, Butler 1979-7-11 6912 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC1173691  Symphoricarpos albus var. laevigatus Joseph P. Tracy 1939-8-20 16428 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC169337  Symphoricarpos albus var. laevigatus Joseph P. Tracy 1908-6 2883 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC57900  Symphoricarpos mollis Gilbert Muth 1979-7-31 11487 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  JEPS13646  Symphoricarpos mollis Lincoln Constance 1934-6-3 808 Humboldt road from High Rock to Horse Prairie (High Rock (on Redwood Hwy, 1 mi n of Dyerville)); South Fork Eel River, Bull Creek Region Comment
  CAS-BOT-BC99167  Symphyotrichum chilense L. R. Abrams 1927-9-1 12063 Humboldt unspecified Comment
  UC186451  Symphyotrichum chilense Joseph P. Tracy 1915-9-12 4672 Humboldt Laribee Creek (mouth of) Northern Coast Ranges 91 Comment
  CAS-BOT-BC98973  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1215 Humboldt Trinity Summit near Ranger Station 1828 Comment
  UC165029  Symphyotrichum subspicatum J. P. Tracy 1900-9-3 936 Humboldt immediate vicinity of Eureka 0 Comment
  HSC21156  Synthyris cordata D. E. Anderson 1962-3-4 1928 Humboldt About 2 mi. S of Trinidad Comment
  UC902207  Synthyris reniformis Joseph P. Tracy 1941-4-8 16810 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 609 Comment
  HSC100449  Taraxacum dens-leonis Carl C. Marshall Mar 1886 136 Humboldt Everywhere. Comment
  JEPS36856  Taraxacum officinale Lincoln Constance 1934-6-12 864 Humboldt Bull Creek road and n bank of South Fork Eel River, Dyerville South Fork Eel River, Bull Creek Region, Dyerville Comment
  HSC30348  Taraxacum officinale Dale R. Gradek 1974-5-15 35 Humboldt Adjacent to road across the playground in Redwood Park 61 Comment
  RSA167403  Taraxacum officinale Joseph P. Tracy 1948-5-15 s.n. Humboldt Trinity River at Willow creek Comment
  UC154102  Tauschia kelloggii Joseph P. Tracy July, 1908 2910 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges, btw Van Duzen and Mad Rivers 914 Comment
  HSC54591  Taxus brevifolia Overton, Butler 1979-7-24 9659 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC49031  Tellima grandiflora Patricia Shesgreen 1978-5-5 63 Humboldt 5.1 mi. S of Ferndale on Mattole Rd. Comment
  HSC75801  Tellima grandiflora Bill Copeland 1980-7-2 355 Humboldt Near Snow Camp Creek 1311 Comment
  UC1586873  Thlaspi montanum var. montanum Juha Pykala and D. H. Norris 1987-5-19 710 Humboldt Horse Mountain Road at intersection with ski-lift; Horse Mountain Road 1400 Comment
  CAS-BOT-BC81306  Thuja plicata Doris K. Kildale 1927-5-13 3130 Humboldt Green Point, Redwood Creek road Comment
  RSA1090  Thuja plicata E. R. Johnson 1928-8-26 1149 Humboldt 7 miles east of Arcata Comment
  HSC22843  Thysanocarpus curvipes D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5060 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC6991  Thysanocarpus curvipes D. E. Anderson 1962-5-1 2204 Humboldt 1 mi. W of Hoopa Comment
  JEPS49715  Tiarella trifoliata var. unifoliata Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  RSA246667  Tiarella trifoliata var. unifoliata R. F. Thorne, Percy C. Everett 1965-8-5 35140 Humboldt Mt. Chamisal; Below summit. 534 Comment
  UC1198899  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1912-7-23 3796 Humboldt 5 mi above mouth South Fork of Eel River; Northern Coast Ranges, along South Fork of Eel River 91 Comment
  UC1198061  Tonella tenella Joseph P. Tracy 1908-6-9 2660 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC906646  Torilis arvensis Joseph P. Tracy 1946-6-15 17557 Humboldt Berry's Mt on Trinity Highway east of Redwood Creek 609 Comment
  BLMAR228  Torilis arvensis Jennifer Anthony-Wheeler 1996-7-11 228 Humboldt N.Dobbyn creek, growing in understory of mixed evergreen forest 1005 Comment
  HSC72099  Torilis arvensis J. P. Smith, L. Barker, J. Cole 1976-7-27 8948 Humboldt Berry Summit on abandoned hwy. Comment
  UC642292  Torilis nodosa Joseph P. Tracy 1927-6-18 8183 Humboldt near Petrolia (Hills between Petrolia and Ocean) 152 Comment
  CAS-BOT-BC239834  Torreyochloa pallida var. pauciflora Catherine Best 1990-6-25 1424 Humboldt In Fern Canyon Comment
  UCD93242  Torreyochloa pallida var. pauciflora H. S. Yates 1914-6-15 438 Humboldt Buckeye Mts. 883 Comment
  UC165853  Tracyina rostrata Joseph P. Tracy 1903-5-23 1892 Humboldt Alder Point Northern Coast Ranges 243 Comment
  UC154267  Trichostema lanceolatum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC198630  Trichostema lanceolatum Joseph P. Tracy 1916-9-6 4759 Humboldt Grasshopper Ridge, head of Canoe Creek Northern Coast Ranges 609 Comment
  HSC44328  Trichostema laxum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3700 Humboldt Above Alder Spring 1616 Comment
  UC1223394  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1943-5-9 17420 Humboldt on Trinity River (Willow Creek) Comment
  HSC99711  Trifolium angustifolium Glenn W. K. Shelton 2010-7-7 10 Humboldt 2.3 mi. S of Kneeland Rd./Mtn. View Rd. intersection, 1 mi. W of Kneeland Airport, along Kneeland Rd., turnout access to powerline corridor 524 Comment
  UC162800  Trifolium barbigerum J. P. Tracy 1906-6-17 2491 Humboldt immediate vicinity Eureka 0 Comment
  UC495700  Trifolium barbigerum Joseph P. Tracy 1932-5-17 10066 Humboldt Berry's North Coast Ranges, Redwood Cree 274 Comment
  UC1223494  Trifolium ciliolatum Joseph P. Tracy 1942-5-16 17334 Humboldt vicinity Garberville 152 Comment
  UC169347  Trifolium ciliolatum Joseph P. Tracy 1912-7-4 3720 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UC1197204  Trifolium ciliolatum Joseph P. Tracy 1911-7-11 3510 Humboldt Hoopa Valley Northern Coast Ranges 152 Comment
  JEPS65857  Trifolium dubium Joseph P. Tracy 1916-5-31 4699 Humboldt along Eel River (from South Fork to Scotia); Northern Coast Ranges 60 Comment
  HSC77921  Trifolium dubium L. P. Janeway, Paul Wilson 1984-5-7 769 Humboldt On the N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  HSC89573  Trifolium dubium M. Roantree 1985-5-15 46 Humboldt E side of Trinidad Head. Comment
  JEPS65860  Trifolium eriocephalum var. eriocephalum W. L. Jepson 1902-6-20 1894 Humboldt Ft. Seward Ranch Ridge, main ridge 1219 Comment
  UC1039817  Trifolium fucatum J. I. Mallory 1956-4-27 129 Humboldt 1 3/4 mi w Petrolia (at head of Jeffrey Gulch, Humbolt base and Mer.); Quad. 28-B4 121 Comment
  HSC29728  Trifolium fucatum J. D. Ackerman 1973-4-19 43 Humboldt Off Redwood Ave., Arcata Comment
  UC1223459  Trifolium fucatum Joseph P. Tracy 1933-5-20 12221 Humboldt s point of cape (near ocean shore); Cape Mendocino Comment
  UC41600  Trifolium fucatum J. Burtt Davy 1899-6-19 5684 Humboldt Hoopa Mtn North Coast Ranges Comment
  UC495645  Trifolium gracilentum Joseph P. Tracy 1932-4-24 9810 Humboldt betw Miranda and Redway (South Fork of Eel River); Northern Coast Ranges 91 Comment
  UC1197197  Trifolium gracilentum Joseph P. Tracy 1909-5-2 2965 Humboldt near Cutten and McDonald Tract; Eureka Comment
  HSC40872  Trifolium longipes Thomas W. Nelson 1976-7-9 3011 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  UCD111290  Trifolium longipes subsp. oreganum Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  HSC44837  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3500 Humboldt Above Alder Springs, N of pond 1585 Comment
  UC1223359  Trifolium macraei Joseph P. Tracy 1950-6-8 18729 Humboldt Bear River Ridge 609 Comment
  HSC78971  Trifolium microdon L. P. Janeway 1984-5-16 786 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road 1/4 mi. NW of the boat ramp 5 Comment
  UC1223349  Trifolium microdon Joseph P. Tracy 1950-6-18 18840 Humboldt 1 mi e Cape Mendocino (at roadside on top of ridge); Cape Ridge 304 Comment
  SEINET4178759 Image available Trifolium obtusiflorum Unknown 1932-6-14 10153 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA168851  Trifolium olivaceum var. olivaceum Joseph P. Tracy 1950-7-1 18945 Humboldt Near Clear Lake where the Friday Ridge Road comes to the top of Grouse Mountain Ridge. 1220 Comment
  HSC2108  Trifolium pratense Paul Shields 1955-6-10 Humboldt HSU campus Comment
  HSC77398  Trifolium pratense L. P. Janeway 1983-5-3 259 Humboldt Along E Fence of HSU playing field 21 Comment
  HSC57902  Trifolium repens Gilbert Muth 1979-7-31 11496 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC15170  Trifolium repens J. L. Baker 1965-4-24 16 Humboldt 4 mi. N of Arcata on N. Bank Rd., Humboldt Meridian Comment
  HSC48608  Trifolium repens Mark Flippo 1978-4-18 11 Humboldt Mckinleyville, Bella Vista Rd. Comment
  HSC98062  Trifolium repens Cara Witte 2007-7-11 503 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC32919  Trifolium willdenovii Thomas W. Nelson, James Nelson 1973-5-28 966 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1197510  Trifolium willdenovii Joseph P. Tracy 1922-4-30 6033 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC495689  Trifolium willdenovii Joseph P. Tracy 1929-5-5 8568 Humboldt along South Fork of Eel River (Miranda); Northern Coast Ranges 121 Comment
  HSC38477  Trifolium wormskioldii D. E. Anderson 1971-6-14 - 1042 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  UC168972  Trifolium wormskioldii Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3590 Humboldt near Hydesville Northern Coast Ranges 30 Comment
  RSA168852  Trifolium wormskioldii Joseph P. Tracy 1950-6-8 18714 Humboldt Near the Sand Cut. Wild Cat Road, 2 miles south of Ferndale. Comment
  POM188101  Triglochin maritima Marcus E. Jones 1931-7-16 29221 Humboldt Arcata. Comment
  SEINET3883156  Triglochin maritima Rick Lundquist 1979-5-31 110 Humboldt Arcata North Quadrangle. Mad River Slough ca. 1 mile west of intersection of Mad River Road and Iverson Lane.; 0 0 Comment
  RSA46966  Trillium albidum E. N. Crosby 1935-3-10 66 Humboldt Blue Lake Comment
  HSC15715  Trillium albidum D. W. Snell 1964-4-18 46 Humboldt Mad River bottom 3 mi. N of Blue Lake Comment
  UC1364374  Trillium albidum J. D. Freeman with R. F. Freeman 1967-5-7 581 Humboldt just n. of Carlotta (just w. of CA Hwy. 36) Comment
  HSC101814  Trillium kurabayashii Kjirsten A. Wayman 2012-5-4 315 Humboldt Bald Hills Road, 19 mi. SE of Hwy 101, N 41.14003 deg. W 123.85954 deg. 916 Comment
  CAS-BOT-BC133394  Trillium ovatum L. R. Abrams 1922-6-25 8257 Humboldt North of Mad River near Arcata Comment
  CHSC2321  Trillium ovatum V. Holt 1933-4-11 Humboldt Comment
  HSC57025  Trillium ovatum Overton, Butler 1979-7-24 9646 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC74571  Trillium ovatum M. A. Baker 1980-5-17 1192 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC133398  Trillium ovatum Volney Rattan 1879-6-1 s.n. Humboldt Trail to Hoopa Comment
  UC1103502  Trillium ovatum Ralph Ferguson 1948-4-9 Humboldt Sutter tract Eureka 60 Comment
  UC1222528  Trillium ovatum Joseph P. Tracy 1950-4-20 18613 Humboldt 1 mi. w. Dinsmore's (on Van Duzen R.); Van Duzen R. Comment
  RSA298972  Triodanis biflora Lincoln Constance 1934-6-4 818 Humboldt Look Prairie, and Bull Creek road, to Dyerville, South Fork Eel River. Comment
  UC1198036  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1911-5-30 3207 Humboldt sandy fields at Bucksport (at Eureka); Northern Coast Region 0 Comment
  UC179947  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1914-5-14 4472 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  HSC20866  Triphysaria versicolor subsp. faucibarbata Francis Winter 1960-5-6 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  JEPS13343  Triphysaria versicolor subsp. versicolor W. K. Parks July, 1932 1427 Humboldt Trinidad Comment
  UC1198043  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1927-4-24 7928 Humboldt Eureka 6 Comment
  UCD123426  Triphysaria versicolor subsp. versicolor Linda M. Barker 1976-4-13 1424 Humboldt 3 miles west of Arcata. Comment
  JEPS26252  Triphysaria versicolor subsp. versicolor J. P. Tracy 1900-6-25 863 Humboldt immediate vicinity Eureka; immed vicinity of Eureka 0 Comment
  HSC48993  Trisetum canescens M. Andre Baker 1979-5-23 753 Humboldt Comment
  JEPS72932  Trisetum canescens Lincoln Constance 1934-5-23 612 a Humboldt se slope of mountain above Look Prairie 365 Comment
  UCD93603  Trisetum canescens P. B. Kennedy 1923-8-3 s.n. Humboldt Bluff Creek to Orrick. Comment
  HSC13410  Trisetum canescens D. C. Juve 1964-5-16 45 Humboldt 1 mi. N of Tish-tang Ranger Station on Hwy. 96. Comment
  UCD93909  Trisetum cernuum Joseph P. Tracy 1939-4-25 16223 Humboldt Bull Creek. 60 Comment
  HSC98366  Triteleia bridgesii T. Jimerson, J. Pageau 1979-5-24 472 Humboldt Near Orleans 226 Comment
  RSA256582  Triteleia bridgesii D. E. Anderson 1972-6-20 5725 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  SEINET202007 Image available Triteleia hyacinthina Joseph P. Tracy 1942-6-15 17136 Humboldt Englewood natural prairie near Redcrest resort 91 Comment
  UC15023  Triteleia hyacinthina Harley P. Chandler May 1901 1246 Humboldt Redwood Belt North Coast Ranges 152 Comment
  UC15024  Triteleia hyacinthina Joseph Burtt Davy 1899-6-13 5491 Humboldt Camp Grant to Pepperwood Comment
  CAS-BOT-BC526353  Triteleia laxa Ella Dales Cantelow 1939-6-4 3916 Humboldt 11.3 miles north of Garberville, road to Alder Point Comment
  HSC35868  Triteleia laxa Thomas W. Nelson, James Nelson 1975-8-5 2126 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. Comment
  HSC37394  Tsuga heterophylla Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 487 Humboldt Along Lost Man Creek. 38 Comment
  RSA173982  Umbellularia californica R. F. Thorne 1957-9-2 19001 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC249701  Umbellularia californica Joseph P. Tracy 1921-2-27 5415 Humboldt Alton; Northern Coast Region, Alton 30 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
  POM160273  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt Around Humboldt Bay. Elk River Valley. 30 Comment
  CAS-BOT-BC193964  Vaccinium cespitosum Harley P. Chandler 1901-5-1 1181 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC199320  Vaccinium ovatum Carl B. Wolf 1931-8-29 2369 Humboldt Near summit of Orick Hill on road to Weitchpec 304 Comment
  HSC7912  Vaccinium ovatum W. R. Rogers 1966-5-1 225 Humboldt Mill Creek Comment
  POM257944  Vaccinium ovatum H. E. Parks, S. T. Parks 1937-04 5638 Humboldt Spruce Cove, Trinidad. Comment
  RSA66951  Vaccinium ovatum E. K. Balls 1951-5-4 16421 Humboldt Nelson Grove to Robinson Grove, Hwy 101, 20 mi. north of Garberville. Comment
  UC902048  Vaccinium ovatum Joseph P. Tracy 1948-10-24 18257 Humboldt near Fruitland 304 Comment
  CAS-BOT-BC199411  Vaccinium parvifolium Doris K. Kildale 1926-3-25 1628 Humboldt Liscom Hill near Essex, Lower Mad River Comment
  HSC7922  Vaccinium parvifolium J. Pursell 1964-10-11 10113 Humboldt Old Hwy. 101, 3 mi. N Patricks Point State Park Comment
  RSA303471  Vaccinium parvifolium J. R. Shevock 1972-3-26 1470 Humboldt Along Hwy 299. 366 Comment
  UC1197780  Vaccinium parvifolium Joseph P. Tracy 1931-4-26 9341 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  HSC55023  Vaccinium uliginosum Overton, Butler 1979-7-31 11435 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC314631  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1924-7-13 6725 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC102568  Vancouveria hexandra M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1555 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC502924  Vancouveria hexandra Joseph P. Tracy 1932-7-15 10620 Humboldt near Corral Prairie (Trinity Summit); Klamath Mountains, , near Corral Prairie 1524 Comment
  CAS-BOT-BC76089  Vancouveria planipetala T. Worley; M. Mill; F. Rosenthal 1985-5-10 61 Humboldt Grays Falls Campground. 240 Comment
  UC146078  Vancouveria planipetala Joseph P. Tracy 1908-6-23 2678 Humboldt near Grizzly Gulch; Northern Coast Ranges, near Grizzly Gulch 152 Comment
  UC902013  Veratrum californicum var. californicum H. E. Parks and J. P. Tracy 1949-6-25 11676 Humboldt meadow Trinity Summit, Box Camp 1463 Comment
  RSA12516  Veratrum insolitum Carl B. Wolf 1934-7-3 5920 Humboldt 9.5 miles form Martins Ferry on Orick Road. 305 Comment
  HSC21195  Veronica americana P. Markle 1962-5-22 53 Humboldt Along road to City of Arcata reservoir Comment
  HSC28222  Veronica americana John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  HSC99376  Veronica arvensis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 25 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
  HSC99072  Veronica peregrina subsp. xalapensis Cara Witte 2007-6-21 331 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  UC1192005  Veronica scutellata Malcolm A. Nobs, S. Galen Smith 1949-8-3 1190 Humboldt at the southern outskirts of Eureka Comment
  JEPS29846  Veronica scutellata Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7836 Humboldt about 1 mi w of Carlotta (or about 0.5 mi e of Hydesville) Comment
  JEPS80004  Vicia americana var. americana Joseph P. Tracy 1935-5-26 13908 Humboldt Iaqua 609 Comment
  UC1197479  Vicia americana var. americana Joseph P. Tracy 1936-3-29 14786 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  HSC15270  Vicia gigantea W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir Comment
  UC1222590  Vicia hirsuta Joseph P. Tracy 1944-6-10 17474 Humboldt Eureka Comment
  UC495713  Vicia hirsuta Joseph P. Tracy 1932-10-30 10899 Humboldt Alton to Fortuna (Eel River); Northern Coast Region, Eel River 15 Comment
  UCD108675  Vicia hirsuta Linda M. Barker 1976-5-13 1479 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA168921  Vicia hirsuta Joseph P. Tracy 1943-7-1 17428 Humboldt Vacant lot, 7th and I Streets, Eureka. (Same place as no. 17474). Comment
  HSC15272  Vicia sativa subsp. nigra R. A. Rasp 1964-4-5 32 Humboldt 1 mi. S of Hoopa on Willow Creek Rd. Comment
  POM148460  Vicia villosa J. B. Feudge 1923-7-22 264 Humboldt Fortuna. 15 Comment
  CAS-BOT-BC263943  Viola adunca Mrs. H. C. Cantelow 1936-5-17 s.n. Humboldt 5.5 miles E of Orick Comment
  HSC102013  Viola adunca M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 914 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC44428  Viola cuneata Brad Klipfel 1975-5-30 644 Humboldt Horse Mtn. Comment
  HSC96078  Viola cuneata J. Breton, A. Livingston, Jennifer Lumbert 2005-6-24 2 Humboldt Horse Mtn. radio tower, 1/2 mile from intersection of three F.S. roads, 4.5 miles from Hwy. 299 on Titlow Hill Rd. 1445 Comment
  HSC97552  Viola cuneata Cara Witte 2007-6-1 167 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N38. 1382 Comment
  UC302051  Viola cuneata Joseph P. Tracy 1926-6-20 7615 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC98113  Viola cuneata Cara Witte 2007-6-26 360 Humboldt Horse Mountain Botanical Area. At intersection of 6N38 and National Forest 1. 1416 Comment
  POM118644  Viola glabella Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  CAS-BOT-BC536493  Viola glabella Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC21793  Viola glabella R. A. Rasp 1964-5-6 41 Humboldt Butler Valley, 11 mi. S of Korbel Comment
  HSC45496  Viola glabella Maralyn O'Meara 1972-6-8 97 Humboldt Along Bald Hills Rd. 18 mi. E of junction with Hwy. 101 Comment
  JEPS50385  Viola glabella Lincoln Constance 1934-5-26 652 Humboldt near Founder's Tree (North Dyerville Flat); Bull Creek Region, South Fork Eel River, North Dyerville Fla 48 Comment
  RSA249390  Viola glabella D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5592 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC1198459  Viola glabella Joseph P. Tracy 1913-4-13 44040 Humboldt about 4 mi e of Eureka (region about Humboldt Bay, along brach of Ryans Slough); Northern Coast Region, Ryans Slough Comment
  HSC21866  Viola hallii W. Lanphere 1937-5-11 Humboldt Hoopa Comment
  UC35283  Viola hallii Chesnut and Drew July 1888 Humboldt Kneeland Comment
  UCR139069  Viola hallii E. Brower, S. Marubayashi, E. Perry 1997-5-10 054 Humboldt USFS Road 1, at mile marker 8 945 Comment
  UC1222517  Viola hallii Joseph P. Tracy 1950-7-1 18944 Humboldt near Clear Lake (at summit of Grouse Mountain, where the Friday Ridge Road comes to the top of Ridge); Grouse Mountain 1524 Comment
  HSC21823  Viola ocellata W. Lanphere 1937-4-20 Humboldt Hoopa Comment
  UC1198455  Viola ocellata J. P. Tracy 1903-5-23 1894 Humboldt Alder Point, on Eel River 152 Comment
  UC35284  Viola ocellata Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  RSA183614  Viola ocellata D. E. Anderson 1965-5-1 3557 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek. Comment
  RSA66978  Viola ocellata E. K. Balls 1951-5-9 16514 Humboldt ca. 5 miles S of Richardson's Grove, Highway 101. Comment
  CDA36588  Viola odorata Gordon Leppig, Sylvia Leppig 2000-12-23 1525 Humboldt Arcata; southwest corner of 10th & I Street. Comment
  HSC38790  Viola praemorsa subsp. praemorsa J. P. Smith 1976-5-30 8823 Humboldt Near Black Rock on the road to Clear Lake 1524 Comment
  UC66207  Viola praemorsa subsp. praemorsa Harley P. Chandler may, 1901 1085 Humboldt Harris; Northern Coast Ranges, Harris 609 Comment
  HSC90070  Viola praemorsa subsp. praemorsa C. Baldwin, A. Hiss, P. Reynolds 1990-4-27 56 Humboldt Titlow Rd., 0.5 mi. S of Hwy. 299; 50 yds. W of Titlow Rd. 854 Comment
  UC164816  Viola sempervirens Joseph P. Tracy 1901-1-1 978 Humboldt immediate vicintiy of Eureka 0 Comment
  HSC9826  Vulpia bromoides L. M. Malloy 1965-5-14 50 Humboldt 0.5 mi. W of Alliance Store along Alliance Rd. Comment
  SEINET11682992  Vulpia bromoides K. S. Erdman 1970-1 4818 Humboldt summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glenn, Redwood National Park Comment
  HSC97933  Vulpia microstachys var. ciliata Cara Witte 2007-6-19 298 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 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
  SEINET200329  Vulpia microstachys var. pauciflora Joeseph P. Tracy 5818 Humboldt Kneeland Prairie 762 Comment
  HSC71646  Vulpia myuros J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9930 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  UC1198904  Whipplea modesta Joseph P. Tracy 1949-5-8 18294 Humboldt open flat by old Strong's District Schoolhouse (5 mi e of town); Carlotta 60 Comment
  SEINET10898891  Whipplea modesta Botany 1985-5-10 BOTANY s.n. Humboldt T5n,r63,sec.34,h.m.; Grays falls campground, off hwy 299, about halfway down to River on shaded slope, habitat included madrone, douglas fir, and canyon live Oak 241 Comment
  HSC98077  Wyethia angustifolia Cara Witte 2007-7-11 485 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  JEPS13755  Wyethia longicaulis Frank W. Gould 1939-5-29 841 Humboldt Horse Mountain 914 Comment
  UC1223296  Xanthium spinosum Joseph P. Tracy 1943-11-28 17452 Humboldt river bar at mouth Van Duzen River (near Alton); Eel River 91 Comment
  UC1134688  Xerophyllum tenax A. E. Wieslander 1931-5-19 208 Humboldt near Orleans (Klamath National Forest); Klamath National Forest Comment
  UC1225857  Xerophyllum tenax Joseph P. Tracy 1947-7-9 17862 Humboldt Horse Mountain 1432 Comment
  UC30055  Xerophyllum tenax Joseph Burtt Davy 1899-6-19 5630 Humboldt Hupa Mountain Comment
  HSC31209  Zigadenus micranthus D. E. Anderson 1972-6-20 5741 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC15747  Zigadenus micranthus D. E. Anderson 1965-5-15 3696 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. 198 Comment



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