Search Results — 2000 specimen records retrieved (1361 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 Comment
  CHSC19504  Abies grandis Wendell Wood 1970-10-7 305 Humboldt Mckinleyville. East end of Chateau Way. 106 Comment
  SDSU1549  Abies grandis W. A. Bemis 1964-4-11 254 Humboldt Mad River, HWY 299. 76 Comment
  HSC38927  Abronia latifolia Linda M. Barker 1976-5-13 1490 Humboldt 3 mi. W of Arcata. Comment
  RSA0025081  Abronia latifolia I. L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, eight miles north of Arcata. Comment
  SEINET11933918  Abronia latifolia F. H. Utech 1986-1 86 -404 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  RSA202444  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt Ridge just SE of Forest Service Nursery, 2 miles SE of Grannell and 4 miles E of Hwy 101 Comment
  SEINET3026058 Image available Acer circinatum Joseph P. Tracy 1942-7-26 17294 .5 Humboldt Valley of SOuth Yager Creek 610 Comment
Read comments
May 1 2015
  UC902128  Acer glabrum var. glabrum Joseph P. Tracy 1949-8-26 18530 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  HSC57158  Acer glabrum var. torreyi Overton, Butler 1979-7-26 9957 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  RSA178582  Acer glabrum var. torreyi Joseph P. Tracy 1950-7-1 18947 Humboldt Back of Cold Springs, near Clear Lake Comment
  HSC69577  Acer macrophyllum R. Kalal 1980-6-1 9 Humboldt S side of Essex Pond 15 Comment
  UC1585365  Acer macrophyllum R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 20 Humboldt on Hwy 299, 11.2 km e Hwy 101 (e of Arcata); e of Arcata Comment
  SEINET8734158 Image available Achillea borealis subsp. californica H. E. Parks, S. T. Parks 1943-1 24246 Humboldt Egg Point, Trinidad 122 Comment
  CAS-BOT-BC28590  Achillea millefolium Ira L. Wiggins 1940-7-10 9485 Humboldt Big Lagoon Comment
  HSC67891  Achillea millefolium J. P. Smith 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC73474  Achillea millefolium Gail Newton 1980-7-11 1312 Humboldt Near Red Mtn. 1341 Comment
  HSC81936  Achillea millefolium Thomas W. Nelson, Jane P. Nelson 1979-7-3 4957 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC99504  Achillea millefolium K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 164 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
  HSC60005  Achillea millefolium M. A. Baker 1978-5-20 562 Humboldt East side of Klamath River Comment
  RSA254748  Achillea millefolium var. arenicola Thomas W. Nelson 1971-11-11 597 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  RSA120761  Achlys triphylla S. S. Tillett 1956-7-6 621 Humboldt 11 mi. from Orlenas, on Bar Shanty Road. 1159 Comment
  HSC34876  Achlys triphylla Thomas W. Nelson 1975-5-5 1778 Humboldt Beside Hwy. 101, 4 mi. S of the Salmon Creek bridge Comment
  UC526748  Achnatherum lemmonii Joseph P. Tracy 1928-6-24 8466 Humboldt Valley of South Yager Creek 762 Comment
  UC552773  Achnatherum lemmonii H. E. Parks and Joseph P. Tracy 1934-6-27 11053 Humboldt Grouse Mt. 1432 Comment
  HSC35817  Acmispon denticulatus Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-20 1919 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  HSC45024  Acmispon micranthus R. Sutherland 1978-4-23 18 .23478 Humboldt Near head of Kinsey (Fraser) Ridge 732 Comment
  HSC64762  Acmispon micranthus Bruce Gordon 1979-6-18 140 Humboldt Redwood National Park, NNE of K & K Rd, about 2.5 mi. S of junction of K & K Rd. and Bald Hills Rd. 707 Comment
  HSC56154  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-8-1 12014 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC54752  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-26 10270 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1196185  Actaea rubra Joseph P. Tracy 1937-7-2 15410 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC1222569  Actaea rubra Joseph P. Tracy 1950-7-2 18977 Humboldt below Grizzly Camp (along creek at crossing of Little Hors Linto Creek); Trinity Summit Comment
  HSC76187  Adenocaulon bicolor Overton, Butler 1979-7-24 9785 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC76581  Adenocaulon bicolor Mrs. M. H. Manning 1901-1-1 Humboldt near Hupa Comment
  RSA12438  Adenocaulon bicolor Carl B. Wolf 1934-7-2 5855 Humboldt 2 mi. from Bald Mt. on rd. to Korbel. 762 Comment
  UC203315  Adiantum aleuticum Joseph P. Tracy 1916-6-25 4742 Humboldt e Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  SEINET202723 Image available Adiantum capillus-veneris J. P. Tracy 1951-7-8 19622 Humboldt JP Tracy's garden at Eureka Comment
  CAS-BOT-BC202609  Aesculus californica Joseph P. Tracy 1937-6-20 15357 Humboldt Bear River, ten miles up stream from the mouth 152 Comment
  HSC31797  Aesculus californica Steve Selva, Roger Jensen 1974-8-27 80 Humboldt W of Humboldt-Trinity co. line on Hwy. 299 Comment
  RSA458173  Aesculus californica Charlotte M. Hoak 1931-07 s.n. Humboldt Alton. Comment
  UC249587  Aesculus californica Joseph P. Tracy 1921-10-22 5978 Humboldt Bridgeville; Northern Coast Ranges 304 Comment
  UC154005  Agastache urticifolia Joseph P. Tracy 1908-6 2802 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC30384  Ageratina occidentalis Henry M. Pollard 1948-7-28 s.n. Humboldt Near Orleans Comment
  JEPS18702  Ageratina occidentalis Milo S. Baker 1923-7-21 447 Humboldt Bed of Van Duzen North Coast, Bed of Van Duzen Comment
  UC205185  Agoseris aurantiaca var. aurantiaca Joseph P. Tracy 1919-9-23 5284 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC32125  Agoseris grandiflora D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5586 Humboldt Mount Lassic and 2 smaller peaks to immediate east 1768 Comment
  UC1222932  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-8-7 18446 Humboldt Box Camp, in meadow Trinity Summit 1463 Comment
  HSC73528  Agoseris heterophylla Gail Newton 1980-7-14 1458 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1199485  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1932-6-26 10272 Humboldt (ne of Bridgeville) Fort Baker Ranch; Bridgeville 762 Comment
  UC29354  Agoseris heterophylla var. heterophylla H. N. Bolander 1867-1 6494 Humboldt Red Mountains Comment
  UC249886  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6283 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  POM126128  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear Ridge Ridge 305 Comment
  HSC73664  Agoseris retrorsa M. A. Baker 1980-7-15 2967 Humboldt Near Whiting Ridge. 1341 Comment
  UC249882  Agoseris retrorsa Joseph P. Tracy 1923-6-3 6256 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  JEPS71136  Agrostis alba W. L. Jepson 1936-8-17 17920 Humboldt near Still's Ranch (2 mi s of Field's Landing) Comment
  RSA129700  Agrostis capillaris H. S. Yates 5685 Humboldt Near Bayside 9 Comment
  UC1152034  Agrostis capillaris Joseph P. Tracy 1951-6-26 19547 Humboldt Snow Camp Meadow Comment
  SEINET201009  Agrostis diegoensis Doris Kildale Humboldt Trinity Summit 1829 Comment
  HSC98576  Agrostis exarata Cara Witte 2007-7-20 556 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  RSA53834  Agrostis exarata Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  UC1103379  Agrostis exarata Joseph P. Tracy 1935-7-25 14232 Humboldt McKay Prairie Trinity Summit, McKay Prairie 1584 Comment
  UC815014  Agrostis exarata H. E. Parks 1935-6-1 5607 Humboldt Spruce Cove Trinidad Comment
  UCD52338  Agrostis exarata R. Tofsrud 1947-7-1 201 Humboldt near Harris. Comment
  BLMAR708  Agrostis exarata Jennifer Wheeler 2013-10-25 708 Humboldt Lacks Creek, Upper Round Prairie 731 Comment
  SEINET11673856  Agrostis exarata P. H. Chandler 1901-1 1525 Humboldt Klamath River, North Coast Ranges 427 Comment
  LA10251  Agrostis exarata var. exarata H. E. Parks; June 1935 5607 Humboldt Spruce Cove, Trinidad Comment
  UC187117  Agrostis hallii Joseph P. Tracy 1908-6 2882 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC33716  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5873 Humboldt Martins Ferry Comment
  UCD52675  Agrostis hallii P. B. Kennedy 1923-6-14 305 Humboldt Stoddard store, near Garberville. Comment
  CAS-BOT-BC139358  Agrostis idahoensis Joseph P. Tracy 1935-7-27 14303 Humboldt Trinity Summit. At McKay Prairie. 1584 Comment
  POM126118  Agrostis pallens Joseph P. Tracy 1900-7-4 876 Humboldt Ocean Beach at Samoa. Comment
  UC526883  Agrostis pallens Joseph P. Tracy 1932-7-17 10661 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  SEINET11683259  Agrostis stolonifera K. S. Erdman 1970-1 4773 Humboldt Counts Hill prairie on Bald Hills Rd, SE of Orick 853 Comment
  UC1145072  Agrostis viridis Joseph P. Tracy 1938-8-14 16112 Humboldt along mining ditch near South Fork; Trinity River Valley 304 Comment
  HSC33763  Aira caryophyllea John S. Palmer 1975-5-24 369 Humboldt Off Samoa Blvd., across from boat landing Comment
  HSC45216  Aira caryophyllea M. Alcasas 1978-6-3 117 Humboldt Titlow Hill Rd., 1.2 mi from Hwy. 299 1463 Comment
  RSA256299  Aira praecox J. R. Reeder, C. G. Reeder 1973-5-26 6186 Humboldt 2 miles S of Orick in Humboldt State Park, near Pacific Shore. Comment
  UC13826  Allium acuminatum Harley P. Chandler June, 1901 1349 Humboldt Hupa Indian Reservation Morth Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC102207  Allium amplectens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1122 Humboldt Andy's Camp 1564 Comment
  UC275545  Allium bolanderi Joseph P. Tracy 1923-6-26 6377 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, Koby's Ranch); Northern Coast Ranges, Brannan Mountain, Koby's Ranch 762 Comment
  UC303139  Allium bolanderi Joseph P. Tracy 1925-6-7 7073 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon Comment
  HSC99113  Allium bolanderi var. bolanderi Cara Witte 2007-6-7 232 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC146211  Allium bolanderi var. mirabile Joseph P. Tracy 1908-6 2771 Humboldt opposite Buck Mountains; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC2957  Allium campanulatum J. P. Tracy 1932-7-12 10479 Humboldt Head of Brett Hole, Trinity Summit 1829 Comment
  HSC102617  Allium cratericola M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1604 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC32146  Allium falcifolium D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5600 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC30070  Allium falcifolium Joseph Burtt Davy 1899-6-19 5659 Humboldt summit of ridge, Hoopa Mt. Hoopa Mt. Comment
  HSC66828  Allium hoffmanii M. A. Baker 1980-7-11 2791 Humboldt Near Red Mtn. 1341 Comment
  UC1562908  Allium peninsulare Barbara Ertter with Thomas J. Delendick 1987-5-16 6920 Humboldt ca. 15 air mi e Arcata (ridge below vista, w of Berry Summit on Hwy. 299); Vista Point 914 Comment
  HSC56339  Allium serra Griswold, Butler 1979-7-10 6224 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  CDA18808  Allium triquetrum P. Haggard 2000-2-22 PDR 018177 Humboldt Glen St., Eureka. 0 Comment
  HSC2941  Allium triquetrum D. V. Sanford 1963-4-27 48 Humboldt Near old mill behind HSC campus Comment
  UC1196540  Allium triquetrum H. E. Peacock 1942-4-6 Humboldt Ferndale 15 Comment
  UC2029549  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U. S. Highway 101 ca. 1.0 miles west of Orick Comment
  CAS-BOT-BC475482  Allium triquetrum E. C. Whitney 1965-4-19 s.n. Humboldt Lamphire Rd. and nearby field, Arcata Bottoms Comment
  HSC104412  Allium unifolium Adam N. Canter 2017-4-20 6 Humboldt BLM, Lost Coast Headland, Guthrie Creek 60 Comment
  HSC41327  Allotropa virgata Brad W. Klipfel 1974-8-2 513 Humboldt Horse Mtn. Comment
  UC213001  Alnus rhombifolia Joseph P. Tracy 1919-9-27 5303 Humboldt Willow Creek Northern Coast Ranges (near its mouth, (creek is a tributary of Trinity River)) 152 Comment
  UC213002  Alnus rhombifolia Joseph P. Tracy 1919-12-28 5306 Humboldt 5 mi above Carlotta (river bar); Northern Coast Ranges, Van Duzen River 30 Comment
  RSA778733  Alnus rubra Lyman Benson 1929-7-19 1878 Humboldt Mouth of Matole [Mattole] River. Comment
  SFV18531  Alnus rubra D. Waller 2002-5-7 71 Humboldt Arcata. Intersection of L. K. Wood and Redwood Ct. 61 Comment
  CAS-BOT-BC138146  Alopecurus aequalis var. aequalis Volney Rattan 1903-1-1 s.n. Humboldt Mad River. Comment
  SEINET201056  Alopecurus geniculatus J. P. Tracy 1926-6-12 7589 Humboldt Prairie Creek 152 Comment
  UC1100224  Alopecurus geniculatus Malcolm A. Nobs and S. Galen Smith 1949-8-3 1164 Humboldt 1 mi. s. Fields Landing (Eel R. Valley); Eel R. Valley Comment
  HSC12525  Ambrosia chamissonis Wilbur Peterson 1970-10-7 13 Humboldt McKinleyville Beach at the end of Murray Rd. Comment
  HSC28482  Ambrosia chamissonis J. D. Ackerman 1973-8-23 118 Humboldt Mad River Beach Co. Park Comment
  UC665538  Ambrosia chamissonis H. E. Parks 1941-9-1 24214 Humboldt sandy beaches at mouth Little River Comment
  RSA355694  Ambrosia chamissonis var. chamissonis Dave Kelly, Walter Wisura 1986-7-30 4133 Humboldt On sand dunes near Manila, Samoa peninsula W of Arcata Comment
  HSC100625  Amelanchier alnifolia Carl C. Marshall Jun 1886 292 Humboldt Bald Hills. Comment
  CAS-BOT-BC142892  Amelanchier alnifolia var. semiintegrifolia Harley P. Chandler 1901-6-1 1282 Humboldt Hupa Indian Reservation 1097 Comment
  UC418998  Amelanchier alnifolia var. semiintegrifolia H. E. Parks, J. P. Tracy 1925-6-25 3775 Humboldt Lawrence Creek Comment
  CAS-BOT-BC142894  Amelanchier alnifolia var. semiintegrifolia L. R. Abrams 1917-6-17 7209 Humboldt Hoopa to Briar's Resort on road to Korbel Comment
  HSC41333  Amelanchier pallida Brad Klipfel 1974-9-17 570 Humboldt Horse Mtn. Comment
  CHSC33078  Ammophila arenaria J. P. Smith; T. W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC1239645  Amsinckia intermedia Joseph P. Tracy 1927-5-8 7990 Humboldt Garberville; Northern Coast Ranges 121 Comment
  UC545822  Amsinckia menziesii var. menziesii H. E. Parks March, 1933 4282 Humboldt Trinidad Comment
  UC1198609  Anagallis arvensis Joseph P. Tracy 1948-9-20 18222 Humboldt Hoopa Valley, along Mill Creek Hoopa Valley, Mill Creek 91 Comment
  HSC26883  Anagallis arvensis Clifton Raymond Chesbrough 1973-6-19 90 Humboldt 1/2 mile S of Trinidad along the coast Comment
  UC1199417  Anaphalis margaritacea Joseph P. Tracy 1937-7-29 15578 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1196197  Anemone deltoidea Joseph P. Tracy 1935-7-28 14309 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC13935  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
  UC582654  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  UC642263  Angelica genuflexa Joseph P. Tracy 1938-9-25 16165 Humboldt near Murphy Meadows (Bald Mountain); Bald Mountain 944 Comment
  HSC71412  Angelica hendersonii J. M. DiTomaso 1980-6-7 1567 Humboldt Elkshead, N of Trinidad. Comment
  JEPS14103  Angelica hendersonii Joseph P. Tracy 1936-10-24 15205 Humboldt Table Bluff 91 Comment
  UC1197380  Angelica hendersonii Joseph P. Tracy 1936-8-17 15156 Humboldt Table Bluff 91 Comment
  HSC71416  Angelica hendersonii J. M. DiTomaso 1980-8-1 1820 Humboldt Alton, S of Eureka, above NE junction of railroad and Hwy 36, E of Hwy 101 Comment
  HSC71419  Angelica hendersonii J. M. DiTomaso 1980-7-29 1797 Humboldt Elkshead, 2 mi N of Trinidad Comment
  UC906655  Angelica tomentosa Joseph P. Tracy 1949-8-26 18528 Humboldt 3 mi s of Grizzly Camp (Trinity Summit); Trinity Summit 1463 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
  HSC32840  Anisocarpus madioides Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC56962  Antennaria suffrutescens Overton, Butler 1979-7-23 9477 Humboldt Near Horse Mountain Creek, close to the town of Willow Creek 1317 Comment
  RSA167203  Antennaria suffrutescens Joseph P. Tracy 1947-7-9 17864 Humboldt Horse Mountain 1432 Comment
  UC1222873  Anthemis cotula Joseph P. Tracy 1946-8-25 17643 Humboldt Van Duzen River (mouth) Eel River, Van Duzen River Comment
  CAS-BOT-BC289123  Anthoxanthum occidentale Richard R. Halse 1996-3-26 5020 Humboldt At junction of Bald Hills Road adn Holter Ridge Bike Route, 11 miles SE of U.S. Hwy. 101, Redwood National Park 708 Comment
  CAS-BOT-BC289125  Anthoxanthum occidentale Doris K. Kildale 1929-3-10 6931 Humboldt Bug Creek, Chaparral Mt. Comment
  HSC10097  Anthoxanthum occidentale D. E. Anderson 1963-3-23 2401 Humboldt 2 mi. N of Beaver School Comment
  SACT000343  Anthoxanthum odoratum Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt marshes bordering Humboldt Bay, 2 miles north of Eureka Comment
  UC526831  Anthoxanthum odoratum Joseph P. Tracy 1925-7-5 7164 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, 1066 Comment
Read comments
Jul 18 2012
  JEPS5358  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1939-8-5 16384 Humboldt Dinsmore's 731 Comment
  UC1196739  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1946-11-17 17665 Humboldt Eel River at mouth of Van Duzen River; Eel River 18 Comment
  UC1198737  Aphanes occidentalis J. P. Tracy 1904-4-3 2005 Humboldt immediate vicinity Eureka 0 Comment
  SEINET6329793  Aphanes occidentalis J. P. Tracy 1905-4-16 2165 Humboldt Immediate vicinity of Eureka, at Bucksport 152 Comment
  HSC99426  Aquilegia formosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 75 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC162852  Aquilegia formosa Joseph P. Tracy 1908-6 2739 Humboldt nw slope of Buck Mountain Northern Coast Ranges 762 Comment
  UCSB1939  Aquilegia formosa Phillips, Priscilla 1958-6-7 Humboldt Just off Highway 101 on road to Big Lagoon Park Comment
  HSC99487  Arabis glabra var. glabra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 146 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  HSC75495  Arabis holboellii var. retrofracta J. O. Sawyer 1980-7-18 3637 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC57653  Arabis lyallii G. L. Clifton, Terry Griswold 1979-7-25 10824 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC70246  Arabis subpinnatifida M. A. Baker 1980-6-8 1912 Humboldt Near Buck Flat. 1554 Comment
  UC902020  Arabis subpinnatifida Joseph P. Tracy 1949-7-19 18389 Humboldt Grouse Mountain 1584 Comment
  CAS-BOT-BC167258  Aralia californica Doris K. Kildale 1926-11-14 2860 Humboldt Stephen's Grove near Miranda Comment
  CAS-BOT-BC128696  Arbutus menziesii Doris K. Kildale 1928-5-19 5224 Humboldt Chalk Mountain Comment
  HSC74651  Arbutus menziesii M. A. Baker 1980-5-17 1235 Humboldt Near Le Perron Peak 792 Comment
  HSC7598  Arbutus menziesii D. E. Anderson 1962-3-17 1932 Humboldt ca. 3 mi. W of Bridgeville. On S facing bank above the Van Duzen River Comment
  UC582721  Arctostaphylos Joseph P. Tracy 1937-4-3 15247 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC585941  Arctostaphylos Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC585942  Arctostaphylos Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  UC585946  Arctostaphylos Joseph P. Tracy 1934-3-11 13155 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23744  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1040 Humboldt Old coast road, 7 miles so. of Honeydew 304 Comment
  CAS-BOT-BC23762  Arctostaphylos columbiana H. E. Parks 1931-12-1 4950 Humboldt Hobson's, Trinidad 60 Comment
  CAS-BOT-BC23781  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12583 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's. On ridge 1 mile S. of road. 1219 Comment
  CAS-BOT-BC23786  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23789  Arctostaphylos columbiana Walter Knight 1965-8-4 1157 Humboldt Shelter Cove - Thorn Jct. - approx. 4 mi. S of Mendocino-Humboldt Co. line. 365 Comment
  HSC7618  Arctostaphylos columbiana J. Pursell 1964-10-11 10114 Humboldt Big Lagoon Park, 1 mi. N of Big Lagoon school, approx. 200 yds. W of the road Comment
  JEPS19869  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6168 Humboldt around Humboldt Bay; Northern Coast Region, Table Bluff 60 Comment
  JEPS38964  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13139 Humboldt vicinity of Trinidad 60 Comment
  RSA622682  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27770 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  UCD50668  Arctostaphylos columbiana Linda M. Barker 1976-2-22 1319 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UCD50679  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15439 Humboldt Eureka. 45 Comment
  UCD50690  Arctostaphylos columbiana W. L. Jepson 1921-8-11 9410 Humboldt Big Lagoon. 15 Comment
  UCD50750  Arctostaphylos columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff. 91 Comment
  RSA152310  Arctostaphylos columbiana var. columbiana Joseph P. Tracy 1945-5-15 17510 Humboldt Kneeland Prairie. 671 Comment
  HSC98571  Arctostaphylos glandulosa subsp. glandulosa Cara Witte 2008-8-5 987 Humboldt Buck Flat. 1/4 mile south of intersection of National Forest 1 and Forest Service Road 5N01. 1569 Comment
  RSA246945  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, Percy C. Everett 1965-8-5 35133 Humboldt Peak of Mt. Chamisal. 701 Comment
  UC1193023  Arctostaphylos glandulosa subsp. glandulosa R. E. Nelson 1950-7-26 146 Humboldt 1/2 mi nw Neafus Peak; Quad. 29D1 762 Comment
  JEPS38946  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  HSC35598  Arctostaphylos knightii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2013 Humboldt French Camp, Bald Hills. Comment
  RSA632802  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27765 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  HSC48987  Arctostaphylos manzanita M. A. Baker 1979-5-25 761 Humboldt Comment
  HSC73604  Arctostaphylos manzanita M. A. Baker 1980-7-23 3143 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC24372  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-6-25 3583 a Humboldt Near Ettesburg. Comment
  RSA46696  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-6-25 3583 Humboldt Ettersburg Comment
  UC1198677  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1923-3-17 6155 Humboldt Garberville Northern Coast Ranges 121 Comment
  HSC55024  Arctostaphylos nevadensis Overton, Butler 1979-7-31 11436 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC55162  Arctostaphylos nevadensis Gilbert Muth 1979-8-1 12136 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC7656  Arctostaphylos nevadensis J. Pursell 1964-10-17 10173 Humboldt Road to Box Camp in Hoopa Valley Comment
  JEPS38940  Arctostaphylos nevadensis Joseph P. Tracy 1932-7-18 10722 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  CAS-BOT-BC40062  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge 1066 Comment
  HSC102573  Arctostaphylos patula M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1560 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1225933  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17502 Humboldt Eureka 45 Comment
  UC21912  Arctostaphylos uva-ursi J. Burtt Davy 1899-7-30 6184 Humboldt opposite Eureka; Samoa Comment
  UCD52152  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1148 Humboldt Comment
  HSC70967  Arctostaphylos viscida R. York 1980-5-17 540 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC48259  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1939-4-29 16265 Humboldt Orleans 121 Comment
  UC668115  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1933-5-18 12192 Humboldt near Blue Lake; Mad River 15 Comment
  HSC16900  Armeria maritima subsp. californica M. T. Morse 1966-4-9 9 Humboldt 0.5 mi. N of Samoa Pulp Mill. Comment
  HSC22493  Armeria maritima subsp. californica S. V. Thompson 1967-7-24 19 Humboldt Back from beach Comment
  HSC35606  Arnica discoidea Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2017 Humboldt French Camp, Bald Hills. Comment
  HSC49998  Arnica discoidea M. A. Baker 1979-6-7 790 Humboldt W slope of Snow Mtn. 762 Comment
  HSC8990  Arrhenatherum elatius J. P. Tracy 1927-9-25 8369 Humboldt Eureka, alongside railroad track 0 Comment
  UCD135923  Arrhenatherum elatius R. Wenk; P. Hopkinson, M. Hammond, and S. Spiegal 2008-6-6 832 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air mile north of Mattole Road, about 3 air miles west of Highway 101. 243 Comment
  JEPS37048  Artemisia dracunculus W. L. Jepson 1932-7-28 16437 Humboldt Dyerville Comment
  SD56775  Artemisia suksdorfii Darley F. Howe 1963-7-8 3620 Humboldt 2.5 miles west of Bridgeville on Cal. 36. 149 Comment
  SEINET10725832  Artemisia suksdorfii Harold E. Parks Parks 24178 Humboldt Common on sand dunes near ocean. Comment
  UC249827  Artemisia suksdorfii Joseph P. Tracy 1924-8-10 6812 Humboldt Blue Slide on Van Duzen River 91 Comment
  HSC34272  Aruncus dioicus var. acuminatus K. Irwin 1975-8-13 Humboldt Grogans Hole Comment
  CAS-BOT-BC453343  Aruncus dioicus var. vulgaris Volney Rattan 1878-6-16 s.n. Humboldt Mad River Comment
  CAS-BOT-BC453345  Aruncus dioicus var. vulgaris Doris K. Kildale 1930-6-1 9747 Humboldt Klamath River at Weitchpec Comment
  CAS-BOT-BC400527  Asarum caudatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1103506  Asarum caudatum Joseph P. Tracy 1949-6-6 18304 Humboldt Happy Camp Mountain (in Trinity Summit Range, northeast of Hawkins Bar) 1280 Comment
  UC1198119  Asarum caudatum Joseph P. Tracy 1925-3-15 6942 Humboldt Blue Slide; on Van Duzen River 91 Comment
  POM228362  Asarum caudatum C. C. Harris, S. K. Harris 1936-6-14 s.n. Humboldt On Yager Road from Carlotta 457 Comment
  HSC99498  Asarum hartwegii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 158 Humboldt Near North Trinity Mtn, along Forest Service Rd 10NO2, between two forks of Domingo Creek 1433 Comment
  SEINET10473646  Aster subspicatus Mary Susan Taylor 1982-10-24 Taylor 5175 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  HSC96346  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land, edge of logging road. 700 Comment
  CAS-BOT-BC192860  Astragalus purshii var. lectulus Thomas W. Nelson; James L. Nelson 1980-6-10 5405 Humboldt Along Swayback Ridge 4-wheel drive road ca 2.5 miles north of junction with Forest Service road 1S07 1463 Comment
  JEPS118177  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  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
  HSC74724  Asyneuma prenanthoides Gail Newton 1981-8-6 2408 Humboldt Near Mad River. 1308 Comment
  HSC76274  Asyneuma prenanthoides Denis Kearns 1981-7-23 370 Humboldt Near Whiteys Peak 732 Comment
  CAS-BOT-BC69520  Athyrium filix-femina subsp. cyclosorum L. R. Abrams 1916-7-11 6053 Humboldt At mouth of Grizzly Creek on Van Duzon River. Comment
  HSC976  Athyrium filix-femina var. cyclosorum Francis Winter 1960-4-24 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  UC162361  Atriplex gmelinii var. gmelinii Joseph P. Tracy 1911-11-5 3555 Humboldt near mouth Mad River Slough (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, Mad River Slough 0 Comment
  UC146161  Atriplex gmelinii var. gmelinii Joseph P. Tracy 1905-10-1 2393 Humboldt edge of Humboldt Bay at mouth Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, mouth Eel River 0 Comment
  CDA23295  Atriplex patula var. obtusa Gordon Leppig 1999-10-25 1266 Humboldt Eureka, PALCO Marsh Comment
  BLMAR25  Avena barbata Brad Barr June, 1982 25 Humboldt King range, on beach 0 Comment
  UCR122378  Baccharis glutinosa George K. Helmkamp, E. A. Helmkamp 2001-7-8 7006 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  CAS-BOT-BC99404  Baccharis pilularis Doris K. Kildale 1925-12-25 1441 Humboldt mouth of Eel River Comment
  HSC5115  Baccharis pilularis subsp. pilularis Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  SEINET7003036  Baeria chrysostoma Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC175209  Balsamorhiza deltoidea Joseph P. Tracy 1913-6-17 4175 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1524 Comment
  HSC58642  Barbarea orthoceras G. L. Clifton, Terry Griswold 1979-7-31 11639 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC26814  Barbarea verna Thomas W. Nelson 1971-3-30 364 Humboldt Beside Grizzley Bluff Rd. near Ferndale Comment
  HSC28271  Barbarea verna Thomas W. Nelson 1971-4-12 372 Humboldt Beside Hwy. 101 at the Hookton Rd. junction Comment
  POM118631  Barbarea vulgaris Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  SEINET2153801  Bellis perennis K. T. Harper 2002-1 2002 -5 Humboldt Prarrie Creek State Park, near Orick, on Big Tree Trail. Comment
  UCD129543  Bellis perennis Joseph M. DiTomaso 1976-3-28 343 Humboldt Arcata, corner of 3rd and D. Comment
  JEPS3738  Bensoniella oregona Rimo Bacigalupi and L. Constance with R. Moran, R. L. Rodriguez and Sherwin Carlquist 1951-6-14 3416 Humboldt close to the base Snow Camp Mt. (at Snow Camp, near summit of long high ridge (Bald Mt. ridge) between Mad River and Redwood Creek); nr summit Bald Mt. Snow Camp Mt, btw Mad River and Redwood C 1432 Comment
  UC1046538  Bensoniella oregona R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3416 Humboldt Snow Camp Bald Mountain Ridge (ridge between Mad River and Redwood Creek, Bald Mountain Ridge); Bald Mountain ridge, btw Mad River and Redwood Creek 1432 Comment
  RSA125218  Bensoniella oregona S. Carlquist 1951-6-14 158 Humboldt Below Felt Plateau, on road to Snow Camp 1006 Comment
Read comments
Nov 8 2010
  UC1198389  Berberis aquifolium var. repens Joseph P. Tracy 1947-7-5 17789 Humboldt ridge top 1 mi w Mud Springs (Trinity Summit) 1158 Comment
  HSC27892  Berberis nervosa Clifton Raymond Chesbrough 1973-6-19 66 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC76278  Berberis nervosa Teresa Prendusi 1981-7-7 138 Humboldt Near Slate Creek Butte. 1158 Comment
  HSC70384  Berberis pinnata M. A. Baker 1980-6-7 1801 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC66275  Blechnum spicant L. R. Abrams 1916-7-18 6103 Humboldt Arcata to Trinidad Comment
  UC62521  Blechnum spicant Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  UC62522  Blechnum spicant W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  CAS-BOT-BC66271  Blechnum spicant A. M. Showalter 1925-8-12 s.n. Humboldt west of Orick Comment
  UC936236  Boechera divaricarpa Harold E. Parks and Joseph P. Tracy 1949-6-25 11678 Humboldt Box Camp Trinity Summit 1463 Comment
  CHSC110704  Boechera subpinnatifida Dean Wm. Taylor 2004-6-24 19131 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit; Grouse Mountain. 1310 Comment
  UC572212  Bolboschoenus maritimus H. S. Yates 1936-6-16 5673 Humboldt 1 mi ne Samoa; Eureka Quad., ne of Samoa Comment
  HSC3558  Borago officinalis William J. Ferlatte 1963-4-21 15 Humboldt Near 11th and A St., Arcata Comment
  JEPS13526  Boschniakia strobilacea W. L. Jepson 1902-7-16 2052 Humboldt Trinity Summit. 2133 Comment
  CDA42735  Botrychium multifidum T. C. Fuller 1961-9-28 7054 Humboldt 1.5 miles south of Samoa. 0 Comment
  CHSC33047  Boykinia occidentalis James. P. Smith 1973-1-1 6845 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  HSC64840  Boykinia occidentalis J. P. Smith 1973-5-26 6861 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA246661  Boykinia occidentalis R. F. Thorne, P. Everett 1965-8-5 35127 -a Humboldt Wailaki Recreation site. 518 Comment
  HSC28192  Brassica rapa Thomas W. Nelson 1971-4-12 373 Humboldt Hookton Rd. at the junction of Copenhagen Rd. Comment
  CAS-BOT-BC106290  Brickellia californica Doris K. Kildale 1926-8-29 2593 Humboldt Van Duzen River, near Strong's Station Comment
  HSC45222  Briza maxima M. Alcasas 1978-5-27 108 Humboldt Access road to Eel River Sawmills, 0.2 mi. from U.S. 101 30 Comment
  HSC89547  Briza maxima M. Roantree 1985-5-2 35 Humboldt E side of Trinidad Head. Comment
  RSA244953  Briza maxima Glen I. Wilcox 1973-5-26 s.n. Humboldt West shore of freshwater lagoon. Comment
  SEINET4344866  Briza minor W. D. Billings 1940-6-22 1347 Humboldt 1/2 mile N. of Trinidad Comment
  SBBG10871  Brodiaea elegans subsp. elegans D. E. Breedlove 1961-7-4 650 Humboldt 10.9 mi W of Willow Crk on US Hwy 299 822 Comment
  HSC35610  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2022 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  HSC35940  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1975-7-15 2033 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  UC666907  Brodiaea elegans subsp. elegans Joseph P. Tracy 1936-6-10 14925 Humboldt mountain slopes w of its mouth South Fork of Trinity River 304 Comment
  CAS-BOT-BC486507  Brodiaea stellaris W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula Comment
  HSC76567  Bromus ciliatus Teresa Prendusi 1981-7-24 486 Humboldt Near Whiteys Peak 1585 Comment
  SEINET200637 Image available Bromus commutatus Joseph P. Tracy 1917-6-24 4824 Humboldt Holmes Flat 61 Comment
  HSC45110  Bromus diandrus R. Sutherland 1978-5-13 4 .13578 Humboldt Mattole River. 282 Comment
  CAS-BOT-BC155426  Bromus hordeaceus Doris K Niles 1950-6-1 6 Humboldt Island in Eel River, Niles Field. Comment
  HSC69864  Bromus hordeaceus Thomas W. Nelson 1978-5-28 4087 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC98699  Bromus hordeaceus Cara Witte 2007-5-23 98 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.5 miles south of intersection with 5N04 and 4N32E. 1402 Comment
  CAS-BOT-BC162449  Bromus laevipes H. S. Yates 1936-6-17 5686 Humboldt 1 mile west of Bridgeville. 182 Comment
  HSC99460  Bromus orcuttianus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 114 Humboldt Near North Trinity Mtn., 11. 9 mi. E of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest 1372 Comment
  RSA152294  Bromus orcuttianus Joseph P. Tracy 1936-5-8 15124 Humboldt Trinity Summit; on Ridge 2 miles east of Grove's Prairie 1463 Comment
  UCD59595  Bromus rubens A. H. Murphy 1951-5-21 s.n. Humboldt Tooby and Prior Ranch, Blocksburg Experimental grazing pasture. Comment
  UCD59657  Bromus secalinus var. velutinus G. T. Bateham 1921-8-7 s.n. Humboldt Showers Pass. Comment
  SEINET200633 Image available Bromus sterilis Joseph P. Tracy 1921-5-30 5493 Humboldt Kneeland Prairie. Comment
  UC526735  Bromus vulgaris Joseph P. Tracy 1926-5-2 7427 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD60241  Bromus vulgaris Joseph P. Tracy 1937-6-27 15378 Humboldt Four-mile Creek (west of mouth of South Fork of Trinity). 670 Comment
  RSA484551  Cakile edentula M. B. Dunkle 1936-8-18 4823 Humboldt Moonstone Beach. Comment
  BLMAR307  Cakile edentula subsp. californica Jennifer Anthony-Wheeler 2002-6-24 307 Humboldt Manilla Dunes, Manila dunes rec. area 3 Comment
Read comments
Apr 14 2014
  UCR37862  Cakile edentula subsp. edentula D. Gordon 1982-9-23 s.n. Humboldt Northern Coast, Lanphere-Christensen Dunes Preserve, 3 mi west of Arcata Comment
  CHSC13868  Cakile maritima Tim Manolis 1974-3-16 27 Humboldt On south spit of Humboldt Bay, 5 mi. SW of Eureka. Comment
  HSC39981  Cakile maritima Linda M. Barker 1976-4-30 1418 Humboldt 3 mi. W of Arcata Comment
  HSC39982  Cakile maritima Linda M. Barker 1976-6-22 1628 Humboldt 3 mi. W of Arcata Comment
  UC902001  Cakile maritima Joseph P. Tracy 1948-6-10 18062 Humboldt Trinidad, beach w of town Trinidad 3 Comment
  UCD114943  Cakile maritima Linda M. Barker 1976-9-3 1694 Humboldt 3 miles west of Arcata. Comment
  HSC6608  Cakile maritima D. E. Anderson 1961-9-2 1770 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  RSA647567  Cakile maritima var. maritima William Gilbert 1970-6-3 s.n. Humboldt 101 Hwy, 10 miles S [of] Klamath River. Comment
  CAS-BOT-BC185470  Calamagrostis canadensis Joseph P. Tracy 1932-7-14 10553 Humboldt Trinity Summit. Klamath Mountains. Corral Prairie. 1524 Comment
  CAS-BOT-BC185236  Calamagrostis koelerioides Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mountain. 1828 Comment
  HSC58646  Calamagrostis koelerioides G. L. Clifton, Griswold 1979-7-31 11666 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC96469  Calamagrostis nutkaensis Gordon Leppig 1997-6-19 463 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC17625  Calandrinia ciliata Francis Winter 1960-5-7 Humboldt French Camp Ridge, 3 mi. W of Burnt Ranch 671 Comment
  UC1922744  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, P. Everett 1965-8-9 35345 Humboldt Along Hwy. 101 about 3 mi. N or Eureka. Comment
  UC1103695  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1939-7-9 16346 Humboldt Snow Camp 1402 Comment
  RSA729025  Callitriche heterophylla var. bolanderi R. F. Thorne, P. C. Everett 1965-8-9 35323 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC1103687  Callitriche marginata Joseph P. Tracy 1921-4-24 5436 Humboldt Phillipsville Flat, South Fork of Eel River. Northern Coast Ranges. 91 Comment
  HSC1284  Calocedrus decurrens P. J. Zinke 1950-8-2 148 Humboldt Elk Ridge 7 mi. W of Miranda 640 Comment
  SBBG115082  Calochortus amabilis D. Leaberry 1991-6-13 Humboldt Hwy 254 (Avenue of the Giants), ca. 1 mi S of Phillipsville Comment
  CAS-BOT-BC488451  Calochortus amabilis M. S. Jussel 1931-5-2 n.s. Humboldt Sylvandale, 8 miles N. of Barbarville Comment
  JEPS17771  Calochortus coeruleus W. L. Jepson Jul 16 1902-Jul 23 1902 2035 Humboldt Trinity Summit 2133 Comment
  UC1197682  Calochortus coeruleus Joseph P. Tracy 1932-7-15 10582 Humboldt e of Corral Prairie; Trinity Summit 1828 Comment
  HSC74317  Calochortus elegans var. nanus M. A. Baker 1980-7-22 3061 Humboldt Near Salmon Mtn. 1820 Comment
  HSC26870  Calochortus tolmiei Clifton Raymond Chesbrough 1973-6-19 94 Humboldt 0.5 mi. N of College Cove along coast Comment
  HSC89585  Calochortus tolmiei M. Roantree 1985-5-30 70 Humboldt W side of Trinidad Head on an outcropping W of trail Comment
  CAS-BOT-BC175761  Caltha leptosepala Joseph P. Tracy 1930-7-16 8971 Humboldt South Fork Mountain; at McKay Camp 1676 Comment
  UC405439  Calycadenia fremontii Chesnut and Drew 1888-8-1 Humboldt Lionse Creek Comment
  CAS-BOT-BC275365  Calycadenia truncata var. truncata Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat 152 Comment
  HSC100582  Calypso borealis Carl C. Marshall Apr 1886 198 Humboldt Damp woods. Comment
  HSC16565  Calypso bulbosa Eldrid H. Spinas 1948-6-16 70 Humboldt Horse Mtn. Comment
  UCSB29353  Calypso bulbosa var. occidentalis Phelps, M. 1972-3-19 Humboldt 1.5 mi. from Garberville; along Old Briceland Rd; 0.5 mi. north of roadside 213 Comment
  HSC101987  Calyptridium monospermum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 886 Humboldt Patterson Meadows 1566 Comment
  HSC17646  Calyptridium monospermum W. K. Parks Jul 1933 1198 Humboldt S Fork Mtn. Comment
  HSC55018  Calyptridium monospermum Overton, Butler 1979-7-31 11424 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC55120  Calyptridium monospermum Gilbert Muth 1979-8-1 11899 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC97957  Calystegia occidentalis subsp. occidentalis Cara Witte, Michael Scott 2007-6-22 350 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  HSC40941  Calystegia soldanella Linda M. Barker 1976-6-1 1559 Humboldt 3 mi. W of Arcata Comment
  HSC6368  Calystegia soldanella S. J. Hawks 1965-5-14 61 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  UCD126164  Calystegia soldanella Roman Gankin 1965-8-6 559 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  RSA152326  Camassia quamash subsp. breviflora Joseph P. Tracy 1947-5-3 17686 Humboldt Kneeland Prairie 762 Comment
  HSC15437  Camassia quamash subsp. linearis Gerald T. Rood 1962-5-6 17 Humboldt Kneeland Road ca. 1 mi. W of Barry Rd. Comment
  HSC33058  Camassia quamash subsp. linearis Thomas W. Nelson 1974-5-7 1237 Humboldt Beside Kneeland Rd. 0.5 mi. N of Kneeland School Comment
  CHSC40211  Camassia quamash subsp. quamash L. P. Janeway 1984-5-13 778 Humboldt Along the Kneeland/Bridgeville Road ca 19 mi east of the Kneeland post office and 1 mi south of N Fk Yager Creek. 640 Comment
  HSC16448  Camissonia cheiranthifolia R. E. Hafenfeld 1965-5-9 26 Humboldt 1/2 mi. S of Squashan Creek near Gold Bluff Beach Rd. Comment
  HSC16540  Camissonia cheiranthifolia Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  HSC16444  Camissonia cheiranthifolia C. O. Baker 1962-5-7 31 Humboldt 1 mi. N of Samoa, 1/2 mi. E of coastline Comment
  RSA186811  Camissonia cheiranthifolia subsp. cheiranthifolia Peter H. Raven, R. Snow 1958-7-21 13661 Humboldt Cape Mendocino Comment
  RSA697219  Camissonia cheiranthifolia subsp. cheiranthifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7021 Humboldt North coast: Samoa Peninsula, 2.6 miles S of CA-255 bridge across Humboldt Bay. 15 Comment
  UC1196947  Camissonia contorta Joseph P. Tracy 1939-4-29 16244 Humboldt mouth of Slate Cr. Klamath River 121 Comment
  SD38658  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1932-7-27 4153 Humboldt Comment
  SEINET10463063  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt WILLOW CREEK Comment
  SEINET10939033  Campanula prenanthoides Pollard 1948-8-4 POLLARD s.n. Humboldt ORLEANS MTN TRAIL 4000 Comment
  HSC74731  Campanula scouleri Gail Newton 1981-7-24 2300 Humboldt Near Chaparral Mtn. 1433 Comment
  SEINET10463749  Campanula scouleri Tracy 1908-6-27 TRACY 2858 Humboldt Valley of Van Duzen River, opposite Buck Mountain, in woods. 762 Comment
  SEINET10840360  Campanula scouleri Marshall 1886-1 MARSHALL s.n. Humboldt Comment
  CAS-BOT-BC37222  Cardamine angulata Joseph P. Tracy 1928-4-29 s.n. Humboldt Northern Coast Range. Prairie Creek. 152 Comment
  UC203897  Cardamine breweri Joseph P. Tracy 1918-4-28 4891 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC37418  Cardamine californica LeRoy Ellsworth Detling 1935-4-20 1642 Humboldt Lansdale Redwood Grove. Comment
  HSC23626  Cardamine californica J. O. Sawyer 1971-6-14 2376 Humboldt Above E fork of Horse Linto Creek 1494 Comment
  HSC59052  Cardamine californica Thomas Wood 1979-4-20 122 Humboldt Along frontage road, parallel and E of Hwy. 101 at Patrick Creek Dr. intersection, S of Patrick Creek 6 Comment
  SFV18478  Cardamine californica J. Wanamaker, M. Ellestad, S. Magnuson 1998-2-28 s. n. Humboldt Trinidad. 0.75 miles along Mill Creek trail. 18 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
  RSA167405  Cardamine californica var. integrifolia Joseph P. Tracy 1950-5-7 18651 Humboldt On the Redwood House Road, S of Redwood House 1 mile, on Yager Slope. (Head of South Yager Creek). Comment
  HSC6640  Cardamine oligosperma John A. Dubois 1962-5-12 4 Humboldt 20 mi. E of Arcata Comment
  HSC58364  Cardamine pachystigma Terry Griswold, Marvin Butler 1979-7-10 6361 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC668057  Cardamine pensylvanica Joseph P. Tracy 1937-7-2 15401 Humboldt head Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  HSC91607  Cardionema ramosissimum E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  RSA0097053  Cardionema ramosissimum R. F. Thorne, Percy C. Everett 1965-8-5 35155 Humboldt Samoa Dunes. 3 Comment
  POM296860  Carex Lyman Benson 1929-7-16 1843 Humboldt Weott Ranger Station. Comment
  SEINET10823822  Carex A. Arthur Heller 1923-7-10 Heller 13797 Humboldt Wet soil along the Eel river between Scotia and Pepperwood in the redwood belt. Comment
  JEPS109583  Carex aquatilis var. dives Dean W. Taylor 2002-9-12 18343 Humboldt Lake Prairie, remnant of the original bog vegetation on the eastern end of the lake 1097 Comment
  CHSC85062  Carex arcta Gordon Leppig 2002-7-12 1785 Humboldt Pacific Lumber Company Land. L 35 Rd. 1/2 mile west of Fox Creek Road, west side of large swamp. 70 Comment
  UC562279  Carex arcta Joseph P. Tracy 1934-7-13 13389 Humboldt Dow's Prairie 60 Comment
  UC585638  Carex arcta Joseph P. Tracy 1937-8-12 15645 Humboldt Snow Camp 1402 Comment
  HSC98944  Carex athrostachya Cara Witte 2008-7-16 922 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  CAS-BOT-BC19213  Carex barbarae Joseph Prince Tracy 1929-6-23 8606 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CDA33036  Carex barbarae F. Wetherbee 1962-5-1 Humboldt Ferndale. 0 Comment
  HSC63873  Carex bolanderi M. A. Baker 1979-6-29 962 Humboldt Hopkins Creek 750 Comment
  UC1103111  Carex bolanderi Joseph P. Tracy 1933-6-13 12595 Humboldt Hoopa Mountain, near summit on road west from Hoopa to Bair's 1066 Comment
  UC195346  Carex bolanderi Joseph P. Tracy 1916-6-25 4747 Humboldt e Trinidad; Northern Coast Ranges, Redwood Creek 152 Comment
  HSC98948  Carex bolanderi Cara Witte 2008-7-25 934 Humboldt Friday Ridge Rd. (6N08). Approximately 1 mile east of intersection with Forest Service Road 5N10. 1325 Comment
  UC194802  Carex bolanderi Joseph P. Tracy 1914-7-5 4549 Humboldt Bald Mountain, between High Prairie and Snow Camp 1066 Comment
  UC194820  Carex bolanderi Joseph P. Tracy 1913-7-20 4371 Humboldt Three Creeks 1066 Comment
  CAS-BOT-BC110193  Carex buxbaumii Robert F. Thorne; P. Everett 1965-8-7 35182 Humboldt Big Lagoon. At south end of lagoon. 1 Comment
  HSC103366  Carex densa Thomas W. Nelson, Jane Nelson 1982-7-11 7114 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  CAS-BOT-BC34980  Carex densa Joseph Prince Tracy 1927-5-30 8095 Humboldt Northern Coast Ranges.Garberville. 121 Comment
  RSA12426  Carex exsiccata Carl B. Wolf 1934-7-2 5868 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  CAS-BOT-BC20012  Carex feta H. D. Ripley; R. C. Barneby 1945-6-16 6823 Humboldt NW of Harris. 883 Comment
  UC585645  Carex fracta Joseph P. Tracy 1937-7-25 15542 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  POM292659  Carex gynodynama Lyman Benson 1929-7-12 1795 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  POM292660  Carex gynodynama Lyman Benson 1929-7-16 1830 Humboldt Weott Ranger Station. Comment
  JEPS25966  Carex harfordii Joseph P. Tracy 1927-7-17 8279 Humboldt Three Cabins: grassy slopes on lower western foothills of Chaparral Mountain 457 Comment
  CAS-BOT-BC21021  Carex hendersonii W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  UC303010  Carex hendersonii Joseph P. Tracy 1926-6-13 7598 Humboldt Blue Lake Northern Coast Ranges 152 Comment
  HSC103622  Carex hoodii Thomas W. Nelson, Jane Nelson 1987-6-11 8536 Humboldt Along Forest Service Rd. 13N01, 18 mi. from junction with State Route 96. 1067 Comment
  CAS-BOT-BC35567  Carex jonesii Joseph Prince Tracy 1932-7-15 10573 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  CAS-BOT-BC31260  Carex lenticularis var. impressa Joseph Prince Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  UC1103625  Carex lenticularis var. limnophila Joseph P. Tracy with H. E. Parks 1924-8-3 6766 Humboldt Big Lagoon Northern Coast Region 6 Comment
  SEINET7564994 Image available Carex leptalea Juha Pykala, D. H. Norris 1987-6-24 1895 Humboldt Big Lagoon, Big Lagoon fen. 0 Comment
  CAS-BOT-BC32133  Carex multicaulis Joseph Prince Tracy 1941-4-11 16857 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  HSC70849  Carex multicostata M. A. Baker 1980-6-7 1826 Humboldt Near Ammon Creek 732 Comment
  UC1103087  Carex multicostata Joseph P. Tracy 1928-6-24 8469 Humboldt Valley of South Yager Creek 762 Comment
  UC562268  Carex nervina Joseph P. Tracy 1932-7-16 10627 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC194810  Carex nudata Joseph P. Tracy 1915-6-27 4654 Humboldt above Carlotta (Yager Creek) 91 Comment
  CHSC88894  Carex obnupta L. P. Janeway; B. Castro 2004-9-11 8321 Humboldt North Coast. Near blocked south end of Little River Road 0.4 km north of Central Avenue; near south end of Clam Beach. 5 Comment
  HSC7187  Carex obnupta D. R. Junell 1965-5-2 40 Humboldt 1 mi. S of Fairhaven on Samoa Peninsula Comment
  SEINET7569467 Image available Carex obnupta David Castaner 1984-5-28 8064 Humboldt Patrick State Park, Redwood Forest area. Comment
  NY11255  Carex olympica J. P. Tracy 1911-7-7 3390 Humboldt At the meadows on mountain side, three miles northwest of junction of Willow creek with Trinity River, and near Beebe's Ranch 914.4 Comment
  UC585634  Carex ovalis Joseph P. Tracy 1937-8-7 15617 Humboldt Murphy Ridge Bald Mt. 914 Comment
  CHSC107131  Carex pachycarpa R. E. Brainerd 2009-7-23 1569 Humboldt Coast Range, South Fork Mountain; headwaters of Kerlin Creek; 19.6 air miles west-northwest of Hayfork; Forest Service Road 3N32. UTM zone 10 453507E 4494866 1716 Comment
  CAS-BOT-BC119236  Carex pachystachya Joseph Prince Tracy 1930-7-16 8984 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1676 Comment
  CAS-BOT-BC119245  Carex pachystachya Joseph Prince Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  HSC98935  Carex pachystachya Cara Witte 2007-7-8 444 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  UC1115801  Carex pachystachya Joseph P. Tracy 1939-7-9 16325 Humboldt Lake Prairie Bald Mountain 1066 Comment
  UCSC000108  Carex pansa C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC78036  Carex rostrata Gail Newton 1980-8-10 2050 Humboldt Near Blake Mtn. 1707 Comment
  HSC104335  Carex serratodens James Regan, Humboldt Redwood Co., LLC Jun 2011 32 Humboldt Kneeland, near Kneeland Airport 854 Comment
  CAS-BOT-BC117348  Carex stipata LeRoy Abrams 1918-6-16 7166 Humboldt Willow Creek. Comment
  NY11391  Carex unilateralis J. P. Tracy 1912-7-21 3783 Humboldt 30.5 Comment
  UCD140927  Carex unilateralis Joseph P. Tracy 1946-5-30 17539 Humboldt near Bridgeville. 457 Comment
  CHSC107143  Carex utriculata R. E. Brainerd 2009-7-23 1564 Humboldt North Coast Range, South Fork Mountain; 19.6 miles west-northwest of Hayfork. UTM Zone 10 453477E 4494945N. 1661 Comment
  CAS-BOT-BC115064  Carex vesicaria Joseph Prince Tracy 1934-8-29 13622 Humboldt South Fork Mountain, in wet meadow and McKay Camp. 1676 Comment
  UC1103615  Carex vesicaria var. major Joseph P. Tracy 1932-8-21 10368 Humboldt lower w foothills Chaparral Mountain (Three Cabins); North Coast Ranges 457 Comment
  HSC7090  Carex viridula B. D. Rogers 1965-10-2 1017 Humboldt Big Lagoon 0 Comment
  POM126175  Carex viridula Joseph P. Tracy 1924-7-13 6720 Humboldt Big Lagoon 6 Comment
  HSC2875  Carpobrotus chilensis J. Wendell Howe 1930-5-27 158 Humboldt Pigeon Point Comment
  CAS-BOT-BC249131  Castilleja affinis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  JEPS25062  Castilleja affinis subsp. affinis Joseph P. Tracy 1942-7-1 17366 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Van Duzen River 762 Comment
  JEPS66408  Castilleja affinis subsp. litoralis L. R. Heckard with T. I. Chuang 1971-7-1 2668 Humboldt ca 4 mi n bridge across Big Lagoon (along U.S. Highway 101, n of Big Lagoon) 60 Comment
  JEPS26222  Castilleja ambigua subsp. ambigua Joseph P. Tracy 1921-7-10 5853 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  JEPS3825  Castilleja applegatei subsp. martinii Joseph P. Tracy 1938-5-1 15732 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC72403  Castilleja applegatei subsp. pinetorum J. P. Smith 1973-5-26 6834 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC168996  Castilleja attenuata Mrs. M. H. Manning May 1902 Humboldt Hupa Comment
  UC146238  Castilleja attenuata Joseph P. Tracy 1903-5-22 1881 Humboldt Alder Point Northern Coast Ranges, Eel River (on Eel River) 152 Comment
  UC213503  Castilleja miniata Joseph P. Tracy 1919-9-18 5228 Humboldt Trinity Summit; Northern Coast Ranges 1828 Comment
  CAS-BOT-BC244879  Castilleja miniata Mrs. H. C. Cantelow 1935-5-31 836 Humboldt 15 mi. N. of Orick Comment
  HSC103246  Castilleja pruinosa Lisa D. Hoover 1996-6-12 145 Humboldt Six Rivers National Forest, Lower Trinity District, Grouse Mtn. Quad, Horse Mtn. 1463 Comment
  JEPS25092  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1938-6-17 15952 Humboldt Cape Mendocino 152 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
  UC168991  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1901-5-28 1244 Humboldt Redwood Creek North Coast Ranges (at Bair's ranch) 121 Comment
  HSC45083  Caulanthus lasiophyllus R. Sutherland 1978-4-23 3 .23478 Humboldt Head of Kinsey (Fraser) Ridge 716 Comment
  UC1502106  Ceanothus R. Sutherland 1975-5-13 2 G.13 75 Humboldt Pt. Delgada Quad. 509 Comment
  UC1502133  Ceanothus R. Sutherland 1975-7-13 2 .13.75 Humboldt Pt. Delgada Quad. 518 Comment
  HSC44429  Ceanothus arcuatus Brad Klipfel 1975-5-30 639 Humboldt Horse Mtn. Comment
  UC176960  Ceanothus cordulatus Joseph P. Tracy 1912-7-31 3936 Humboldt near summit of Buck Mt.; Northern Coast Ranges Comment
  UCD111746  Ceanothus cuneatus Roman Gankin; W. R. Hildreth 1966-3-15 698 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  RSA0050338  Ceanothus incanus Carl B. Wolf 1941-3-3 9992 Humboldt N. Coast Range, 1/2 miles N of Ettersburg on road to Honeydew. 305 Comment
  JEPS103741  Ceanothus integerrimus D. Wilken with E. Painter 2003-7-16 16151 Humboldt St Hwy 96 between Muddy and Weitchpec crks, just E of Weitchpec 70 Comment
  OBI36663  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt Ca. 4 mi SE of SR299 along Titlow Hill rd below Horse Mtn Summit rd Comment
  CAS-BOT-BC51221  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  UC1071245  Ceanothus parryi A. E. Wieslander 1931-5-23 221 Humboldt w Briceland; Briceland Quad. Comment
  HSC18314  Ceanothus pumilus Francis Winter 1960-4-24 Humboldt Along rd., French Camp Ridge 915 Comment
  HSC23267  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1300 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  HSC76580  Ceanothus pumilus Denis Kearns 1981-7-6 67 Humboldt Near Mosquito Lake 1256 Comment
  CAS-BOT-BC52997  Ceanothus thyrsiflorus Harold Paul Olmo 1934-6-8 s.n. Humboldt 5 miles n. of Trinidad Comment
  CAS-BOT-BC52998  Ceanothus thyrsiflorus Carl B. Wolf 1927-8-22 806 Humboldt 1 mile south of Orick, along the hills near the ocean. Comment
  HSC18328  Ceanothus thyrsiflorus J. F. Knezevich 1968-5-14 442 Humboldt 11 mi. S of Ferndale on rd. to Cape Mendocino 305 Comment
  HSC18332  Ceanothus thyrsiflorus D. E. Anderson 1962-2-10 1919 Humboldt 1.5 mi. S of Trinidad Comment
  UC1071395  Ceanothus thyrsiflorus G. T. Nordstrom Jul 1934 1426 Humboldt 1 mi nne Orick; Orick Quad. 3 Comment
  UC275289  Ceanothus thyrsiflorus Joseph P. Tracy 1924-8-10 6796 Humboldt Strongs' Station Northern Coast Ranges, Van Duzen River (on Van Duzen River) 91 Comment
  UCD170772  Ceanothus thyrsiflorus Gordon Leppig 1998-5-11 756 Humboldt Rt. #101 mile marker 97.71. 30 Comment
  HSC97570  Ceanothus velutinus Cara Witte 2007-6-5 215 Humboldt Along Forest Service Road 4N32. Near Grouse Mountain 1486 Comment
  POM89164  Ceanothus velutinus Joseph P. Tracy 1919-9-24 5295 Humboldt Trinity Summit 1829 Comment
  SBBG71412  Ceanothus velutinus H. E. McMinn 1931-6-27 2539 Humboldt up to summit from jct of Trinity and Klamath Rivers Comment
  HSC100907  Ceanothus velutinus Carl C. Marshall Jun 1886 257 Humboldt Ridges. 915 Comment
  SEINET12211103  Ceanothus velutinus F. H. Utech 1986-1 86 -383 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  CDA7087  Centaurea calcitrapa T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 miles south of Redcrest. 0 Comment
  CDA7178  Centaurea nigra David Kratville 2007-8-24 PDR# 1440729 Humboldt Holmes; end of Holmes Flat Rd. Comment
  CDA7305  Centaurea nigra E. C. Whitney 1968-9-6 Humboldt Holmes Flat. Rutledge property. 0 Comment
  POM225417  Centaurea solstitialis Philip A. Munz 1936-8-9 14332 Humboldt South fork of Eel River, 5 miles north of Humboldt-Mendocino county line. Comment
  JEPS46937  Centaurium muehlenbergii W. L. Jepson 1932-7-27 16424 Humboldt Bull Creek Comment
  RSA120711  Centaurium muehlenbergii S. S. Tillett 1956-7-6 607 Humboldt Above Klamath River, along Ishi Rish Road, one mile north of Orleans. 168 Comment
  UC511367  Centaurium muehlenbergii Lyman Benson 1929-7-19 1899 Humboldt Weeott Ranger Station, watershed of South Fork Eel River, seaward side of n coast mountain range South Fork Eel River 60 Comment
  HSC70729  Cephalanthera austiniae Gail Newton 1980-7-14 1525 Humboldt Near Deadman Ridge 1097 Comment
  UC13533  Cephalanthera austiniae Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  SBBG2066  Cerastium arvense H. and M. Dearing 1933-5-16 236 Humboldt near Garberville Comment
  UC1223235  Cerastium arvense Joseph P. Tracy 1950-6-15 18820 Humboldt 7 mi. n. Harris (Huestis Rock, on n.e. side of Ridge); Mail Ridge, Huestis Rock Comment
  UC176615  Cerastium glomeratum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3581 Humboldt near Hydesville; Northern Coast Region 30 Comment
  SFV18532  Cerastium glomeratum H. Barnes 2002-5-4 39 Humboldt McKinleyville. Hiller Park. Hammond Trail, 0.2 km north from parking lot. 25 Comment
  UC249526  Cercis occidentalis Joseph P. Tracy 1922-4-30 6003 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC154257  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1903-5-23 1904 Humboldt along Eel River, at Alder Point Eel River; Northern Coast Ranges, , Alder Point 152 Comment
  HSC1193  Chamaecyparis lawsoniana J. C. Reppas 1963-3-2 50 Humboldt 820 Fickle Hill Rd. Comment
  HSC72829  Chamaecyparis lawsoniana Gail Newton 1980-6-16 195 Humboldt Near Onion Mtn. 1280 Comment
  HSC49056  Chamerion angustifolium subsp. circumvagum Patricia Shesgreen 1978-8-2 124 Humboldt Arcata Community Forest, Arcata; 200 yds. N of field house on top of hill overlooking baseball field Comment
  HSC76201  Chamerion angustifolium subsp. circumvagum Overton, Butler 1979-8-2 12521 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  SEINET200780  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1932-7-17 10664 Humboldt Ridges east of Corral Prairie. 1676 Comment
  UCD103644  Chamerion angustifolium subsp. circumvagum E. B. Alexander 1959-7-23 43 Humboldt California Forest and Range Experiment Station. 1 mile NW of Trinidad. Comment
  HSC54691  Cheilanthes gracillima Overton, Butler 1979-7-26 9988 Humboldt Near Willow Creek 1341 Comment
  HSC995  Cheilanthes gracillima J. Wendell Howe 1934-7-21 1314 Humboldt Near Cold Spring, Horse Mtn. Comment
  JEPS59693  Chenopodium ambrosioides Joseph P. Tracy 1934-8-4 13552 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC451385  Chimaphila menziesii Harley P. Chandler 1901-6-1 1398 Humboldt North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC99618  Chimaphila menziesii Jimerson, J. Pageau 1979-6-13 755 Humboldt Near Slate Creek Butte, close to the town of Orleans 549 Comment
  HSC54590  Chimaphila umbellata Overton, Butler 1979-7-24 9658 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  JEPS66585  Chimaphila umbellata Lincoln Constance 1934-6-14 873 Humboldt 2 mi. from mouth of Squaw Creek (on rd. to Grasshopper Peak); Bull Creek Region, S. Fork Eel R. 304 Comment
  UC1197595  Chimaphila umbellata Joseph P. Tracy 1916-6-25 4741 Humboldt ridge between Little River and Redwood Creek; Northern Coast Ranges 304 Comment
  UC1197600  Chimaphila umbellata Joseph P. Tracy 1932-7-16 10644 Humboldt woods near McKay Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC1225900  Chimaphila umbellata Joseph P. Tracy 1947-7-9 17856 Humboldt Horse Mt. 1432 Comment
  UC1326269  Chimaphila umbellata Milo S. Baker 1947-8-10 11899 Humboldt 15 mi. n.e. Hoopa (near end of forest rd.) 1371 Comment
  UCR48601  Chrysanthemum leucanthemum R. D. Goeden, Don W. Ricker 1987-9-2 870902- 19 Humboldt Loleta, along Cannibal Road 8 Comment
  SEINET11842152  Chrysanthemum leucanthemum Unknown 1981-1 8 Humboldt ca 4 mi NE of Arcata, 200 yds N of Hwy 299 61 Comment
  CDA7412  Chrysanthemum segetum E. C. Whitney 1964-6-3 Humboldt Renus Ohman property, Rohnerville. 0 Comment
  UC1198648  Cicendia quadrangularis Joseph P. Tracy 1912-6-9 3681 Humboldt Alton; Northern Coast Region 30 Comment
  UC1197340  Cicuta douglasii Joseph P. Tracy 1937-8-12 15662 Humboldt Snow Camp 1402 Comment
  HSC56318  Circaea alpina subsp. pacifica Overton, Butler 1979-8-2 12657 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC70726  Circaea alpina subsp. pacifica Gail Newton 1980-7-14 1521 Humboldt Near Deadman Ridge 1097 Comment
  POM228358  Circaea alpina subsp. pacifica C. C. Harris, S. K. Harris 1936-6-22 672 Humboldt Yager Creek 732 Comment
  SD42326  Circaea alpina subsp. pacifica Carl B. Wolf 1937-8-13 9253 Humboldt North Coast Range, 11 miles East of Hoopa Valley on the new road towards Trinity Summit 1524 Comment
  SBBG25852  Cirsium arvense D. Myrick 1978-8-16 Humboldt Prairie Crk Redwoods State Park 152 Comment
  HSC12339  Cirsium arvense Steve Dorei 1970-10-26 114 Humboldt SE corner of Old Arcata Rd. and Freshwater Rd. Comment
  SD113203  Cirsium arvense Darley F. Howe 1959-8-4 2801 Humboldt 78.5 miles west of Weaverville on Highway 299. 609 Comment
  CAS-BOT-BC284437  Cirsium brevistylum Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  JEPS59230  Cirsium occidentale var. candidissimum W. L. Jepson 1902-6-20 1893 Humboldt Ft. Seward Ranch ridge 1219 Comment
  UC1223056  Cirsium occidentale var. candidissimum Joseph P. Tracy 1942-8-9 17302 Humboldt at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC288717  Cirsium remotifolium Doris K Niles 1948-7-26 4 Humboldt Eel River bottom, A. D. Niles Field Comment
  UC668205  Cirsium remotifolium var. rivulare Joseph P. Tracy 1938-7-4 15997 Humboldt Iaqua 762 Comment
  HSC5385  Cirsium vulgare J. W. Johnson 1961-9-10 1113 Humboldt Arcata, S of Dune 3 N, Christenson Farm, Samoa Pennisula Comment
  CAS-BOT-BC164175  Clarkia concinna S. K. Harris; J. P. Tracy 1936-6-10 3265 Humboldt West of the South Fork of the Trinity River near its mouth 640 Comment
  HSC16258  Clarkia purpurea subsp. quadrivulnera B. D. Rogers, William J. Ferlatte 1966-6-15 2096 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  UC1196978  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1937-7-5 15372 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD150389  Claytonia cordifolia Harry A. George 1967-7-13 s.n. Humboldt Pepperwood. Comment
  SEINET200315  Claytonia exigua subsp. exigua J. P. Tracy 1926-4-3 7396 Humboldt Kneeland Prairie local Comment
  SEINET9136596  Claytonia perfoliata subsp. mexicana C. E. Fellows 1972-4-29 482 Humboldt Ca 20 meters below the W side of the road to Kneeland, 8 miles ESE of Eureka, 3.1 miles above town of Freshwater. 610 Comment
  UCD100848  Claytonia rubra subsp. depressa Linda M. Barker 1976-4-13 1378 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC74046  Claytonia saxosa Gail Newton 1980-7-11 1320 Humboldt Near Red Mtn. 1341 Comment
  HSC104049  Claytonia sibirica E. R. Fyer 2015-4-29 28 Humboldt Arcata Community Forest 92 Comment
  HSC95732  Claytonia sibirica Steven Lee 2004-4-13 17 Humboldt Arcata Community Forest, along Jolly Giant Creek Rd. Comment
  HSC99422  Claytonia sibirica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 71 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
  SEINET190447  Claytonia sibirica J. P. Tracy 1932-7-14 10536 Humboldt Trinity Summit Corral Prairie 1585 Comment
  CAS-BOT-BC443900  Claytonia sibirica David D. Keck 1948-7-2 6004 Humboldt E. side Rocky Ridge, E. of Berry's Summit, 8.5 mi. W. of Willow Creek, 1/4 mi. W. of boundary of Six Rivers Nat. For. 762 Comment
  JEPS43310  Claytonia sibirica W. L. Jepson 1902-6-29 1951 Humboldt Redwood Creek; Hupa Road Comment
  RSA0059513  Claytonia sibirica H. M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans. Comment
  UC673154  Clematis lasiantha Lincoln Constance and Reed C. Rollins 1942-5-11 2873 Humboldt 6 mi. s. Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  CAS-BOT-BC92592  Clematis ligusticifolia J. Clausen 1932-9-19 697 Humboldt Dyerville, Eel River. Comment
  SBBG58757  Clintonia andrewsiana R. Hartwell 1938-8-5 Humboldt near Eureka Comment
  UC1134574  Clintonia andrewsiana A. E. Wieslander 1931-5-17 194 Humboldt Orick-Orleans Road Comment
  UCD139617  Clintonia andrewsiana K. Esau 1934-5-8 s.n. Humboldt Redwood Highway near Scotia. Comment
  CAS-BOT-BC499335  Clintonia andrewsiana H. C. Cantelow 1936-5-17 1341 Humboldt 3 mi. E. of Oriak Comment
  UC14994  Clintonia andrewsiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5496 Humboldt between Camp Grant and Pepperwood; North Coast Ranges Comment
  CHSC63433  Clintonia uniflora Vernon H. Oswald 1994-6-29 6364 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 3.5 mi NE of Tiltow Hill Rd., 4.6 mi S of Brush Mt. Lookout Rd., S of Hwy. 299 and Willow Creek. 1237 Comment
  UC146212  Clintonia uniflora Joseph P. Tracy 1908-6-27 2733 Humboldt at foot of Buck Mountain, along the Van Duzen River Van Duzen River; Northern Coast Ranges, Buck Mountain, Van Duzen River 304 Comment
  CAS-BOT-BC238027  Collinsia Doris Kildale Gillespie 1931-6-7 10608 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  JEPS26342  Collinsia grandiflora Joseph P. Tracy Jan 1917 4777 Humboldt Eureka Comment
  JEPS25058  Collinsia grandiflora Joseph P. Tracy 1933-6-13 12572 Humboldt Hoopa Mountain; near summit on road from Hoopa westward to Blair's 1066 Comment
  RSA46692  Collinsia greenei Doris K. Kildale 1938-6-5 15393 Humboldt Horse Mountain Comment
  BLMAR643  Collinsia linearis Jennifer Wheeler 2011-6-29 643 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  SEINET12268979  Collinsia linearis J. P. Tracy 1950-1 18969 Humboldt Happy Camp Mountain, Trinity Summit on ridge 2 mi E of Groves Prairie 1524 Comment
  UC1011935  Collinsia linearis F. W. Pennell and J. P. Tracy 1940-7-7 26090 Humboldt w of Salyer (e slope of Grouse Mountain); Grouse Mountain 975 Comment
  UC1222822  Collinsia linearis Joseph P. Tracy 1951-6-16 19475 Humboldt Summit of Siskiyous at crossing of the Takilma-Happy Camp Road near State Line Summit of Siskiyous Comment
  SBBG6896  Collinsia torreyi var. torreyi H. and M. Dearing 1939-6-21 3688 Humboldt E fork of Willow Crk Comment
  JEPS7054  Collinsia torreyi var. wrightii Joseph P. Tracy 1930-7-17 9014 Humboldt near McKay Camp; South Fork Mtn 1676 Comment
  HSC56331  Collomia grandiflora Overton, Butler 1979-8-2 12698 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC98863  Collomia grandiflora Cara Witte 2008-8-5 985 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1569 Comment
  UC146169  Collomia grandiflora Joseph P. Tracy 1908-6 2872 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  HSC45589  Collomia heterophylla Diane L. Reed 1978-5-27 137 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  SBBG29130  Collomia heterophylla H. E. Parks -May-1933 1152 Humboldt Spruce Cove, Trinidad 76 Comment
  UC52746  Collomia heterophylla J. P. Tracy 1900-5-28 823 Humboldt Eureka Comment
  UC879765  Collomia heterophylla Elizabeth Parsons Hawver 1915-6-1 Humboldt Carlotta Comment
  HSC16921  Collomia heterophylla D. E. Anderson 1965-5-15 3699 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. 198 Comment
  HSC27899  Conium maculatum B. R. Templeton 1962-5-15 Humboldt 3 mi S of Arcata Comment
  HSC65326  Convolvulus arvensis J. P. Smith 1973-5-26 6810 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC902062  Convolvulus arvensis Joseph P. Tracy 1949-7-31 18400 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC12546  Conyza canadensis C. Kline 1970-11-15 65 Humboldt Bayside Rd., .5 mi. N of Bayside Comment
  CAS-BOT-BC133715  Corallorhiza Doris Kildale Gillespie 1931-6-7 10659 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  HSC27513  Corallorhiza maculata J. D. Ackerman, A. Montalvo 1973-7-5 99 Humboldt 17 mi. E of Hoopa, on Grogan Hole Rd. Comment
  UC176372  Corallorhiza striata Joseph P. Tracy 1913-6-14 4131 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  SEINET200684 Image available Corallorhiza striata var. striata Joseph P. Tracy 1913-6-14 4131 Humboldt Lower foothills of Buck Mountain, on its northwest slope 762 Comment
  CAS-BOT-BC101146  Corethrogyne filaginifolia Marcus E. Jones 1931-8-2 29133 Humboldt McKinleyville Comment
  UCD130872  Corethrogyne filaginifolia Joseph P. Tracy 1950-6-15 18764 Humboldt 1 mile west of town, near Petrolia, between town and Ocean. Comment
  RSA47113  Corethrogyne filaginifolia var. californica Doris K. Kildale 1925-7-26 1066 Humboldt Mad River near Blue Lake Comment
  RSA239689  Cornus nuttallii Larry E. DeBuhr 1973-4-23 982 Humboldt Richardson Grove Redwood State Park. Comment
  UC1196901  Cornus nuttallii Joseph P. Tracy 1935-4-20 13786 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC183588  Cornus nuttallii Joseph P. Tracy 1913-6-26 4345 Humboldt opposite Buck Mt. (Dinsmore's Ranch, Van Duzen R. Valley); Northern Coast Ranges, Van Duzen R. Valley, Dinsmore's Ranch 762 Comment
  CAS-BOT-BC212175  Cornus sericea Doris K. Kildale 1925-6-27 769 Humboldt Yager Creek near mouth. Comment
  CAS-BOT-BC212185  Cornus sericea Carl B. Wolf 1937-8-13 9251 Humboldt 11 mi. E. of Hoopa Valley on new road towards Trinity Summit, North Coast Range 1524 Comment
  UC154053  Cornus sericea subsp. sericea Joseph P. Tracy 1901-8-2 1247 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC249598  Cornus sericea subsp. sericea Joseph P. Tracy 1921-9-4 5949 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 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
  UC502982  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8653 Humboldt on Van Duzen R. opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  CAS-BOT-BC180309  Corylus cornuta subsp. californica L. B. Kildale 1928-7-1 5311 Humboldt French Camp in Orick - Martin's Ferry road Comment
  HSC99445  Corylus cornuta var. californica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 95 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA46863  Corylus cornuta var. californica Doris K. Kildale 1927-7-10 3734 Humboldt Gans Prairie, Bald Hills. Comment
  HSC5427  Cotula coronopifolia R. T. Forester 1963-4-29 42 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  CAS-BOT-BC291343  Cotula coronopifolia H. E. Parks 1941-9-1 24211 Humboldt Little River State Park Comment
  SEINET10826495  Cotula coronopifolia Harold E. Parks Parks 24211 Humboldt In running water of roadside ditches. Comment
  HSC78083  Crassula aquatica L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 719 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  RSA125671  Crataegus suksdorfii E. K. Balls 1957-5-25 22602 Humboldt Hwy 36, Van Duzen River, W of Trinity Humboldt County Line. 732 Comment
  POM264599  Crepis capillaris C. R. Parks 1941-08 24189 Humboldt Roadsides and fields, vicinity of Trinidad Comment
  RSA28654  Crepis capillaris H. E. Parks 1941-08 24189 Humboldt Roadsides and fields, vicinity of Trinidad Comment
  RSA95100  Crepis capillaris F. W. Peirson 1923-7-11 3936 Humboldt flats N of Eureka. Comment
  UCD130982  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek. 152 Comment
  HSC63483  Croton setiger M. A. Baker 1979-6-6 376 Humboldt Along Hwy. 96 Comment
  HSC99568  Cryptantha affinis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 233 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
  HSC95656  Cryptantha leiocarpa Andrea Pickart 2002-4-3 26 Humboldt Samoa Dunes, City of Eureka airport. 0 Comment
  HSC55070  Cryptogramma acrostichoides G. L. Clifton, Griswold 1979-7-31 11650 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  RSA640954  Cuscuta californica K. Thorne, P. C. Everett 1965-8-9 35305 Humboldt Big Lagoon 3 Comment
  UC906744  Cuscuta californica Joseph P. Tracy 1947-7-5 17776 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC902066  Cuscuta occidentalis Joseph P. Tracy 1949-8-4 18410 Humboldt Mud Springs Trinity Summit 1341 Comment
  UC1197870  Cuscuta subinclusa Joseph P. Tracy 1927-7-17 8287 Humboldt near Bug Creek (Ahlgren's, on Mad River); Mad River 457 Comment
  UC582719  Cuscuta suksdorfii Joseph P. Tracy 1937-8-12 15639 Humboldt Snow Camp 1402 Comment
  UC1222263  Cynoglossum grande Joseph P. Tracy 1949-6-20 18314 Humboldt 6 mi. s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  HSC100403  Cynoglossum grande Carl C. Marshall May 1886 160 Humboldt Vicinity of Humboldt Bay. Comment
  UC1103239  Cynosurus cristatus Joseph P. Tracy 1941-7-26 16969 Humboldt Eureka 30 Comment
  CAS-BOT-BC190378  Cynosurus echinatus J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek. Comment
  CAS-BOT-BC190425  Cynosurus echinatus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  HSC45219  Cynosurus echinatus M. Alcasas 1978-6-3 126 Humboldt Titlow Hill Rd., 0.3 mi. from Hwy. 299 869 Comment
  JEPS26624  Cynosurus echinatus Ira L. Wiggins 1957-6-21 14142 Humboldt 1 mi. s. Garberville (e. side of rd.) Comment
  RSA137066  Cynosurus echinatus I. L. Wiggins 1957-6-21 14142 Humboldt Margin of grassy slide area on east side of road, 1 mile south of Garberville Comment
  UC1145093  Cynosurus echinatus Joseph P. Tracy 1944-7-3 17486 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  HSC98411  Cyperus strigosus Edward G. Kynoch, Jr. 1966-9-23 407 Humboldt Near Trinity River, and Willow Creek 142 Comment
  UC14956  Cypripedium montanum Mrs. M. H. Manning may, 1901 16 Humboldt near Hupa Comment
  CAS-BOT-BC70541  Cystopteris fragilis Doris K. Kildale 1926-5-2 1880 Humboldt Willow Creek Flat - Trinity River tributary 152 Comment
  HSC54855  Cystopteris fragilis G. L. Clifton, Griswold 1979-7-25 10750 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CHSC19747  Cytisus scoparius Gary J. Stebbings 1970-2-2 1 Humboldt Along Big Lagoon Park road across from the store. Comment
  HSC14671  Cytisus scoparius Harvey Doerksen 1962-5-22 26 Humboldt .5 mi. E of Hwy. 299-101 junction. Comment
  HSC14664  Cytisus scoparius var. andreanus W. F. Nickel 1965-5-17 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir, near Jolly Giant Parking Lot. Comment
  HSC9531  Dactylis glomerata W. F. Nickel 1965-3-17 Humboldt Humboldt State University campus Comment
  HSC9532  Dactylis glomerata N. R. Waite 1965-5-19 39 Humboldt W edge of Humboldt State University campus. Comment
  HSC73630  Danthonia californica Marc Baker 1980-7-22 3114 Humboldt Near Grogan Hole. 1676 Comment
  UC184968  Danthonia californica Joseph P. Tracy 1908-6-9 2673 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1103261  Danthonia californica var. americana Joseph P. Tracy 1925-7-5 7161 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  JEPS49591  Darmera peltata Joseph P. Tracy 1918-5-27 4934 Humboldt foot of Grouse Mt. (Redwood Creek); Northern Coast Ranges 457 Comment
  UC673050  Daucus carota Joseph P. Tracy 1940-10-17 16761 Humboldt near Dyerville (South Fork Station); South Fork Station 48 Comment
  HSC21479  Daucus carota H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  UC1197346  Daucus pusillus Joseph P. Tracy 1927-6-26 8211 Humboldt Stone Lagoon sand beach 6 Comment
  HSC102522  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1509 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC1196315  Delphinium decorum subsp. tracyi Joseph P. Tracy 1935-7-14 14070 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC427876  Delphinium decorum subsp. tracyi H. E. Parks and J. P. Tracy 1930-5-25 789 Humboldt Laribee Valley 914 Comment
  UC502927  Delphinium decorum subsp. tracyi Joseph P. Tracy 1932-7-12 10486 Humboldt moist places at head Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC37654  Delphinium decorum subsp. tracyi Robert M. Specht, John Rehling 1976-4-25 395 Humboldt 12 mi. E of Bridgeville on Hwy. 36, at SE end of Larabee Valley Comment
  HSC97177  Delphinium decorum subsp. tracyi Benjamin Hart, Erin Lonergan 2007-6-4 2 Humboldt Grouse Mtn., Coldsprings Camp, 6.5 mi. up Titlow Hill Rd. 1372 Comment
  CAS-BOT-BC9960  Delphinium nudicaule Volney Rattan 1878-1-1 s.n. Humboldt not specified Comment
  HSC100615  Delphinium nudicaule Carl C. Marshall May 1887 412 Humboldt Lawrence Creek. Comment
  UC1225744  Delphinium nudicaule Joseph P. Tracy 1946-6-15 17565 Humboldt lower slopes Horse Mountain 1066 Comment
  CAS-BOT-BC121974  Delphinium trolliifolium Alice Eastwood; John Thomas Howell 1937-6-23 4770 Humboldt Near Dinsmore's Comment
  CAS-BOT-BC121972  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon, near Orick Comment
  SEINET12099650  Delphinium trolliifolium J. P. Tracy 1951-1 19559 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UC1334522  Delphinium trolliifolium G. A. L. Mehlquist and J. A. Jenkins 1940-5-23 17 Humboldt Comment
  CAS-BOT-BC194299  Deschampsia cespitosa subsp. cespitosa David D. Keck 1938-8-5 4773 Humboldt Big Lagoon Comment
  HSC27104  Deschampsia cespitosa subsp. holciformis L. M. Malloy 1965-5-19 38 Humboldt Arcata, southside of Samoa Rd., opposite of KATA radio station, adjacent to the railroad tracks, bank of a drainage ditch. Comment
  HSC93740  Deschampsia cespitosa subsp. holciformis Gordon Leppig 1998-7-19 983 Humboldt Big Lagoon County Park, Big Lagoon Bog 2 Comment
  CAS-BOT-BC201769  Deschampsia elongata H. E. Parks 1931-5-1 3646 a Humboldt Big Lagoon Comment
  CAS-BOT-BC201776  Deschampsia elongata Doris K. Kildale 1928-6-24 7079 Humboldt Redwood Creek at Berry's Comment
  HSC24253  Deschampsia elongata D. E. Anderson 1970-5-21 5081 Humboldt Scotia bluffs. Comment
  HSC98123  Deschampsia elongata Cara Witte 2007-6-19 292 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  UC187267  Deschampsia elongata Joseph P. Tracy 1911-7-7 3412 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (near Beebe's Ranch, at meadows on mt. side); Northern Coast Ranges 914 Comment
  UCD63315  Deschampsia elongata A. H. Murphy 1948-10-21 Humboldt 1/4 mile east of Lassic Peak lookout, northeast of Blocksburg. Comment
  HSC76359  Dicentra formosa Denis Kearns 1981-7-8 164 Humboldt Near Bluff Creek 622 Comment
  JEPS9737  Dicentra formosa Joseph P. Tracy 1933-5-28 12414 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  HSC8365  Dicentra formosa Francis Winter 1960-4-23 Humboldt 4 mi. N of Dollar Ranch, on Korbel-Maple Creek Rd. 244 Comment
  UC1021939  Dicentra formosa Rolf Y. Berg 1955-6-17 Humboldt n of Wiott (Highway 101, Avenue of the Giants) Comment
  CAS-BOT-BC402402  Dicentra formosa subsp. formosa Mrytle Paulson 1918-4-18 s.n. Humboldt Eureka Comment
  SEINET3071630 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1900-8-26 925 Humboldt Eureka Comment
  SEINET200695  Dichelostemma X venustum Joseph P. Tracy 1923-7-4 6524 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC483662  Dichelostemma capitatum Alice Eastwood; John Thomas Howell 1937-6-23 4787 Humboldt Near Dinsmore's Comment
  CAS-BOT-BC483664  Dichelostemma capitatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC39057  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2643 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC71113  Dichelostemma capitatum subsp. capitatum M. A. Baker 1980-5-23 1379 Humboldt Near Buck Mtn. 1524 Comment
  UCD139434  Dichelostemma capitatum subsp. capitatum J. W. Logan 2016-6-17 s.n. Humboldt from Kneeland Ranges. Comment
  SEINET6879153  Dichelostemma congestum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  CAS-BOT-BC501022  Dichelostemma ida-maia Henry M. Pollard 1946-8-16 s.n. Humboldt Across [Klamath] river from Orleans Comment
  POM208998  Dichelostemma ida-maia Lincoln Constance 1934-5-23 604 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park 366 Comment
  SEINET3885614  Dichelostemma ida-maia D. W. McNeal 1977-6-6 2045 Humboldt Dry shaded hillside above the Bridgeville-Kneeland Rd., 0.4 mi. N. of Hwy. #36.; 0 Comment
  SEINET3885618  Dichelostemma ida-maia D. E. Bright 1962-6-12 285 Humboldt Roadside, along Highway #96, 2 miles northeast of Orleans.; 0 Comment
  HSC20643  Digitalis purpurea Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  CAS-BOT-BC150341  Diplacus aurantiacus E. C. Johnston 1931-8-1 s.n. Humboldt Klamath River to Arcata Comment
  SEINET8733128 Image available Diplacus aurantiacus H. E. Parks, S. T. Parks 1951-1 s.n. Humboldt Along bay shore near landing. Trinidad. Comment
  HSC62879  Dipsacus fullonum J. M. DiTomaso 1979-5-20 1042 Humboldt Arcata, Hwy. 101 at Guintoli Rd. Comment
  RSA10939  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of the Eel River Comment
  RSA520558  Disporum smithii Michael A. Hanson 1990-5-21 70 Humboldt 0.5 miles (0.8 km) E of Humboldt State University Life Science Building in Arcata. Comment
  CHSC31322  Distichlis spicata Mark Stopher 1980-6-4 83 Humboldt Along Elk River near Rte 101 bridge. 1 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
  HSC48767  Dodecatheon jeffreyi Brad Klipfel 1973-6-10 88 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA168808  Dodecatheon jeffreyi Joseph P. Tracy 1951-6-14 19406 Humboldt Snow Camp. 1402 Comment
  UC1199497  Downingia elegans Joseph P. Tracy 1934-7-9 13360 Humboldt near Bosworth's; Larrabee Creek 457 Comment
  UC12540  Drymocallis glandulosa var. wrangelliana C. C. Marshall 1888-1 Humboldt Comment
  POM281633  Dryopteris arguta Lyman Benson 1929-7-16 1547 Humboldt Weott Ranger Station. Comment
  HSC26296  Dudleya farinosa T. O. Osborne 1970-9-16 39 Humboldt Blank Rock, 1/4 mi. W Trinidad Head Comment
  HSC101546  Ehrharta erecta J. P. Smith 2009-12-14 12703 Humboldt Along sidewalk at 980 Sixth St. in Arcata; weed Comment
  RSA246898  Eleocharis acicularis var. gracilescens Robert F. Thorne, Percy C. Everett 1965-8-9 35326 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC213006  Eleocharis bella Joseph P. Tracy 1919-5-31 5180 Humboldt shores of Lack Pond, near Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC7317  Eleocharis macrostachya J. Good 1964-5-15 44 Humboldt Mad River Park, 50 yds. N of parking lot Comment
  UCD49784  Eleocharis macrostachya Linda M. Barker 1976-6-22 1621 Humboldt Coastal forest and dunes 3 miles west of Arcata, Humboldt Co., California. Comment
  CAS-BOT-BC113113  Eleocharis obtusa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region 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
  HSC7323  Eleocharis pachycarpa H. E. Parks, J. P. Tracy 1934-10-13 11148 Humboldt Trinidad at Park's place 61 Comment
  RSA298364  Eleocharis palustris Thomas W. Nelson 1977-9-22 3749 Humboldt In drainage ditch along east side of State Route 101 just north of the Eureka Airport Comment
  CAS-BOT-BC113206  Eleocharis parishii Doris K. Kildale 1927-7-3 3664 Humboldt Willow Creek Flat, swampy outflow from spring. Comment
  UC1137130  Elymus X macounii August L. Hormay 1932-5-12 Humboldt Bull Creek Road; near bridge Comment
  UCD61426  Elymus elymoides A. H. Murphy 1951-6-25 75 Humboldt About 1 mile west of Snow Camp Mtn. ca. 8 miles ene of Kneeland. Comment
  HSC54579  Elymus glaucus Overton, Butler 1979-7-24 9618 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC71508  Elymus glaucus M. A. Baker 1980-6-26 2466 Humboldt Near Sims Creek 610 Comment
  HSC74458  Elymus glaucus Gail Newton 1980-8-10 2016 Humboldt Near Blake Mtn. 1798 Comment
  HSC76198  Elymus glaucus Overton, Butler 1979-8-2 12509 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  SBBG53088  Elymus glaucus R. N. Philbrick, J. R. Haller 1976-6-25 8 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  CAS-BOT-BC203477  Elymus glaucus subsp. glaucus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  SEINET249776  Elymus glaucus subsp. glaucus J. P. Tracy 1936-6-9 14889 Humboldt Bear River Lodge Comment
  UC526795  Elymus glaucus subsp. jepsonii Joseph P. Tracy 1933-8-6 12950 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  RSA86744  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon 6 Comment
  SJSU10755  Elymus mollis subsp. mollis H. T. Harvey 1977-7-5 595 Humboldt Elk River Spit, near Eureka, Humboldt Bay Comment
  HSC9729  Elymus mollis subsp. mollis S. J. Moore 1965-5-3 2 Humboldt Gold Beach Comment
  SEINET10831695  Elymus trachycaulus Joseph P. Tracy 1912-7-7 Tracy 3743 Humboldt Eureka. Edge of salt marsh-in wet soil. 0 Comment
  UC184152  Elytrigia repens Joseph P. Tracy 1912-7-7 3743 Humboldt Eureka Northern Coast Region (edge of salt marsh) 0 Comment
  JEPS39238  Epilobium brachycarpum W. L. Jepson 1932-8-9 16358 Humboldt Bull Creek Redwood Creek 106 Comment
  UC183663  Epilobium brachycarpum Joseph P. Tracy 1913-8-1 3959 Humboldt opposite Buck Mountain; Northern Coast Ranges, Dinsmore's Ranch, valley of Van Duzen 762 Comment
  JEPS31511  Epilobium campestre Joseph P. Tracy 1938-7-5 16004 Humboldt open flat by old Strong's District School House (in dried pond bed, 5 mi e of town); Carlotta 45 Comment
  CAS-BOT-BC166892  Epilobium canum subsp. latifolium Doris K. Kildale 1925-9-10 1110 Humboldt Bug Creek 792 Comment
  CDA38081  Epilobium ciliatum T. C. Fuller 1958-6-17 17 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC49649  Epilobium ciliatum subsp. ciliatum J. P. Smith 1971-10-9 5031 Humboldt Mad River above the Fish Hatchery. Comment
  UC722075  Epilobium ciliatum subsp. ciliatum C. L. Hitchcock and J. S. Martin 1939-7-14 5441 Humboldt 7 mi e Shelter Cove 243 Comment
  HSC48854  Epilobium ciliatum subsp. glandulosum Brad Klipfel 1973-7-15 213 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99438  Epilobium ciliatum subsp. glandulosum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 88 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC90695  Epilobium ciliatum subsp. watsonii Gail Newton 1983-6-5 3556 Humboldt Elk River Wildlife Area, Eureka Comment
  UC146120  Epilobium ciliatum subsp. watsonii Joseph P. Tracy 1909-9-19 3097 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  UC1222858  Epilobium densiflorum Joseph P. Tracy 1950-6-18 18843 Humboldt Davis Creek Cape Mendocino (ditch, s of point of Cape) 3 Comment
  UCD106289  Epilobium densiflorum Roman Gankin 1965-8-6 561 Humboldt 2.5 miles SW of Capetown. Comment
  HSC54670  Epilobium foliosum Overton, Butler 1979-7-25 9908 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC67190  Epilobium minutum Thomas W. Nelson, James Nelson 1980-6-10 5426 Humboldt Along NE side of Red Mtn. 1433 Comment
  HSC74235  Epilobium minutum M. A. Baker 1980-7-11 2792 Humboldt Near Red Mtn. 1341 Comment
  HSC97478  Epilobium minutum C. Witte 2007-5-23 87 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  JEPS109976  Epilobium oreganum Dean W. Taylor 2006-8-31 19633 Humboldt UNDERWOOD MOUNTAIN: meadowy opening in forest above the ''Hog Ranch'' site on the USGS map 883 Comment
  UC169918  Epilobium septentrionale Mrs. M. H. Manning Sep 1 1900-Oct 1 1900 Humboldt near Hupa Comment
  HSC36242  Equisetum arvense John Rehling 1975-5-12 73 Humboldt Near S end of Big Lagoon, growing along Hwy. 101 Comment
  UC1239787  Equisetum telmateia subsp. braunii Joseph P. Tracy 1909-3-7 2945 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC213622  Eragrostis mexicana subsp. virescens Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1193151  Ericameria arborescens P. J. Zinke 162 Humboldt 1 mi sw Bear Butte; Quad 29C<l?> 609 Comment
  HSC100430  Erigeron canadensis Carl C. Marshall Oct 1886 347 Humboldt Near North Fork. Comment
  UC468818  Erigeron foliosus var. confinis Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5886 Humboldt Francis Range Comment
  POM187846  Erigeron foliosus var. mendocinus Marcus E. Jones 1931-7-16 29149 Humboldt Junction, East of Arcata. Comment
  JEPS21932  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road (near summit of ridge) 762 Comment
  UC175187  Erigeron foliosus var. mendocinus Joseph P. Tracy 1913-6-10 4082 Humboldt near Grizzly Gulch (bluffs along Van Duzen River); Northern Coast Ranges, Van Duzen River 152 Comment
  UC1222983  Erigeron glacialis var. glacialis Joseph P. Tracy 1947-8-24 17902 Humboldt meadow at Box Camp; Trinity Summit, Box Camp 1463 Comment
  UCR121765  Erigeron glaucus George K. Helmkamp, E. A. Helmkamp 2001-7-8 7019 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  UC175210  Erigeron glaucus Joseph P. Tracy 1913-9-21 4409 Humboldt dunes of ocean beach at Humboldt Bay Comment
  HSC102241  Erigeron inornatus var. inornatus Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  HSC58056  Erigeron klamathensis G. L. Clifton, Griswold 1979-8-1 11926 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC214578  Erigeron philadelphicus D. E. Breedlove 1961-7-3 643 Humboldt Along Eel River, 7.4 miles north of Phillipsville 243 Comment
  HSC5528  Erigeron philadelphicus Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  CAS-BOT-BC214582  Erigeron philadelphicus Doris K. Kildale 1926-3-22 1600 Humboldt Fleener Creek Comment
  HSC67011  Erigeron philadelphicus J. P. Smith 1971-10-9 5025 Humboldt Mad River above the Fish Hatchery. Comment
  JEPS41378  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1934-5-7 16688 Humboldt Bull Creek Comment
  UC573410  Erigeron philadelphicus var. philadelphicus H. S. Yates 1936-6-23 5855 Humboldt 2 mi se of mouth Mad River; Eureka Quad. 30 Comment
  UC1223135  Erigeron strigosus var. strigosus Joseph P. Tracy 1950-7-15 19046 Humboldt 1 mi n of mouth Willow Creek; Trinity River Comment
  SBBG53807  Eriogonum latifolium C. M. Hoak 1931-7-14 Humboldt above Eureka Comment
  UC1198150  Eriogonum latifolium Joseph P. Tracy 1938-6-17 15960 Humboldt near ocean shore (s of point of Cape); Cape Mendocino 3 Comment
  UC1478648  Eriogonum latifolium Robert F. Thorne 1974-7-29 45074 Humboldt Samoa Dunes Comment
  RSA53819  Eriogonum luteolum H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  CAS-BOT-BC259530  Eriogonum luteolum var. luteolum H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC261499  Eriogonum nudum var. nudum A. G. Vestal 1937-6-20 s.n. Humboldt 4 mi. N. of Petrolia Comment
  HSC35602  Eriogonum nudum var. nudum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2010 Humboldt French Camp, Bald Hills. Comment
  UC672903  Eriogonum nudum var. nudum Joseph P. Tracy 1933-8-6 12951 Humboldt French Camp Ridge 1066 Comment
  RSA46699  Eriogonum nudum var. nudum Doris K. Kildale 1927-6-25 3582 Humboldt Ettersburg Comment
  UC6392  Eriogonum nudum var. oblongifolium Harley P. Chandler June, 1901 1442 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  RSA53800  Eriogonum umbellatum var. argus H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mts. 1524 Comment
  CHSC80057  Eriogonum umbellatum var. nelsoniorum L. P. Janeway; B. Castro 1996-8-4 5060 Humboldt High North Coast Ranges. Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain. 1341 Comment
  UC1198156  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8949 Humboldt near Blake Lookout (along summit of South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  RSA21320  Eriogonum umbellatum var. polyanthum Carl B. Wolf 1937-8-13 9221 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 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
  SEINET3841343 Image available Eriogonum umbellatum var. stellatum Joseph P. Tracy 1935-7-28 14329 Humboldt Trinity Summit, Head of Devil's Hole 1829 Comment
  POM265903  Eriophyllum lanatum var. achilleoides Lincoln Constance, Reed C. Rollins 1942-5-12 2886 Humboldt Mouth of Bluff Creek, 6 miles NE of Weitchpec. 152 Comment
  UC34183  Eriophyllum lanatum var. achilleoides Harley P. Chandler May 1901 1234 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  UC90307  Eriophyllum lanatum var. achilleoides W. W. Price 1890-7-1 Humboldt Mad River Comment
  HSC97466  Eriophyllum lanatum var. achilleoides Cara Witte 2007-5-29 129 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC1199143  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1938-6-20 15972 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  HSC8467  Erodium botrys T. W. Beck 1963-4-27 40 Humboldt Camp Bauer, Korbel Comment
  UCR39816  Erodium botrys L. P. Janeway 1984-5-13 771 Humboldt Kneeland/Bridgefield Road c. 5 mi. east of the Kneeland Post Office 762 Comment
  HSC6759  Erysimum capitatum var. capitatum Francis Winter 1960-4-24 Humboldt 2 mi. NW of Sugar Pine Mtn., hilltop 915 Comment
  CHSC93444  Erysimum menziesii Vernon H. Oswald 2000-4-3 9911 Humboldt Near the junction of New Navy Base Rd. and the road to Fairhaven on the North spit of Humboldt Bay. 9 Comment
  HSC28486  Erysimum menziesii J. D. Ackerman 1973-3-27 54 Humboldt 1.5 mi. S of Samoa, alongside Hwy. Comment
  CAS-BOT-BC153744  Erythranthe alsinoides Mrs. A. W. Kildale 1925-4-1 s.n. Humboldt Near Korbel Comment
  SEINET13679562 Image available Erythranthe floribunda Joseph P. Tracy 1911-1 3364 Humboldt Kobyo ranch, Along road between three creeks and mouth of willow creek. 762 Comment
  HSC100889  Erythronium Carl C. Marshall Apr 1887 357 Humboldt Near Lupton's Redwood. Comment
  UC30098  Erythronium californicum Mrs. M. H. Manning 1902-3 Humboldt near Hupa Comment
  HSC15488  Erythronium citrinum var. citrinum E. C. Murczek 1964-4-4 29 Humboldt 8 mi. N of Hoopa Comment
  HSC104422  Erythronium grandiflorum Sydney Carothers 2004-5-31 42 Humboldt Grouse Mountain; back side of Grouse Mtn., slope above Forest Service Rd. 5NO4, below summit 1610 Comment
  UC1541310  Erythronium purpurascens W. K. Parks July 1933 1397 Humboldt South Fork Mountain Comment
  UC146200  Erythronium revolutum Joseph P. Tracy 1908-6-9 2661 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC562613  Euchiton gymnocephalus Joseph P. Tracy 1936-3-22 14784 Humboldt 4 mi se Korbel (near Angels Ranch); North Coast Ranges 304 Comment
  CAS-BOT-BC310491  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt Fickle Hill. (6 mi. S.E. of Arcata) 609 Comment
  POM358934  Euchiton sphaericus H. M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  HSC100665  Eunanus douglasii Carl C. Marshall Apr 1887 377 Humboldt Hoopa Valley, dry roadsides. Comment
  CAS-BOT-BC206801  Euonymus occidentalis Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek near Orleans Comment
  HSC83990  Euphorbia helioscopia L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 222 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  HSC97536  Euthamia occidentalis Ivy Watson 2008-9-17 18 Humboldt Mad River Park on West End Rd., near pumping station, 200 ft. from the water 8 Comment
  HSC70397  Festuca californica M. A. Baker 1980-6-7 1805 Humboldt Near Brush Mtn. 1128 Comment
  SEINET200342 Image available Festuca californica J. P. Tracy 1901-6-23 1175 Humboldt Eureka. 0 Comment
  UC207580  Festuca californica Joseph P. Tracy 1916-4-30 4683 Humboldt Table Bluff, around Humboldt Bay Northern Coast Ranges, Humboldt Bay 121 Comment
  UC526870  Festuca californica Joseph P. Tracy Jul 16 1930-Jul 19 1930 9044 Humboldt near Blake lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC41382  Festuca occidentalis J. O. Sawyer 1970-6-27 2304 Humboldt Site 318. 1494 Comment
  UCD66138  Festuca occidentalis A. H. Murphy 1951-6-25 70 Humboldt Snow Camp meadow, ca. 8 miles e.n.e. of Kneeland. Comment
  SEINET10559307  Festuca occidentalis Victor Duran 1933-5-11 Duran 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  BLMAR30  Festuca perennis Brad Barr June, 1982 30 Humboldt King range, Smith cabin Comment
  POM206179  Festuca subuliflora H. P. Chandler 1901-1 s.n. Humboldt Humboldt Bay. Comment
  UC249609  Foeniculum vulgare Joseph P. Tracy 1922-8 6104 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC103984  Fragaria vesca E. R. Fyer 2015-3-19 12 Humboldt Turnout along side Hwy. 299, near a small creek 459 Comment
  UC1198728  Fragaria vesca Joseph P. Tracy 1917-4-29 4778 Humboldt Lucas Prairie; Northern Coast Region, Eureka 0 Comment
  HSC18399  Frangula californica Dale Thornburg 1968-11-10 Humboldt Hogback Ridge NE of Ammon Guard Station Comment
  CAS-BOT-BC52731  Frangula californica subsp. californica Doris K. Kildale 1927-6-25 3568 Humboldt Shelter Cove Comment
  CAS-BOT-BC52736  Frangula californica subsp. californica Carl B. Wolf 1927-8-30 1249 Humboldt At a small creek 3 miles south of Thorn. Comment
  CAS-BOT-BC52739  Frangula californica subsp. californica Doris K. Kildale 1926-8-15 2511 Humboldt Willow Creek Flat 152 Comment
  HSC41295  Frangula californica subsp. occidentalis Brad Klipfel 1974-7-27 495 Humboldt Horse Mtn. Comment
  HSC93266  Frangula purshiana Gordon Leppig 1998-3-25 727 Humboldt McKinleyville, Central Ave. 43 Comment
  SBBG26941  Frangula purshiana subsp. purshiana C. B. Wolf 1937-8-13 Humboldt 11 mi E of Hoopa Valley on new rd towards Trinity summit 1524 Comment
  UC1198635  Fraxinus latifolia Joseph P. Tracy 1942-6-2 17106 Humboldt Valley of South Yager Creek 762 Comment
  UC249521  Fraxinus latifolia Joseph P. Tracy 1922-5-29 6060 Humboldt South Yager Creek Valley Northern Coast Ranges 762 Comment
  UC1197633  Fritillaria affinis Joseph P. Tracy 1921-8-28 5946 Humboldt Guthrie Gulch; Northern Coast Ranges, Guthrie Gulch 121 Comment
  CAS-BOT-BC130446  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie - summit 853 Comment
  HSC38706  Fritillaria purdyi J. P. Smith 1976-5-29 8816 Humboldt Horse Mtn. 1402 Comment
  RSA654821  Fumaria officinalis Gordon Leppig, Sylvia Leppig 2000-12-7 1523 Humboldt Arcata, 7th and I Street just west of Post Office 6 Comment
  HSC100647  Galium Carl C. Marshall 76 Humboldt No data. Comment
  HSC19847  Galium aparine Elrid H. Spinas 1948-6-16 50 Humboldt Horse Mtn. Comment
  UC1222495  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley Comment
  HSC19793  Galium aparine Joel W. Reinhard 1966-4-30 29 Humboldt N of College Cove Comment
  HSC70654  Galium bolanderi Gail Newton 1980-7-14 1530 Humboldt Near Deadman Ridge 1097 Comment
  JEPS6703  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  POM367782  Galium bolanderi Anstruther Davidson 1919-7-1 3319 Humboldt Eel River Comment
  JEPS25700  Galium bolanderi P. C. Hutchison 1961-5-22 2031 Humboldt high bluffs along road ca. 5.4 mi n Orleans (on US hwy 299, e side of river); Klamath River Comment
  UC1196117  Galium californicum subsp. californicum Joseph P. Tracy 1934-7-9 13337 Humboldt ridge 5 mi s Harris 762 Comment
  RSA46487  Galium porrigens Doris K. Kildale 1926-3-26 1645 Humboldt Old Fortuna Rd Comment
  HSC46966  Gamochaeta ustulata J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just E of the drag strip. Comment
  JEPS34051  Gamochaeta ustulata Lincoln Constance 1934-5-24 627 Humboldt bordering on e side Lower Look Prairie; Bull Creek Region, South Fork Eel River 121 Comment
  UCD132373  Gamochaeta ustulata Linda M. Barker 1976-7-5 1539 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC303396  Gamochaeta ustulata M. S. Jussel 1931-5-2 s.n. Humboldt Near Garberville Comment
  CAS-BOT-BC188532  Garrya elliptica Doris K. Kildale 1926-9-12 2668 Humboldt Klamath River near Requa on trail between ferry and bridge Comment
  CAS-BOT-BC188534  Garrya elliptica Joseph P. Tracy 1943-6-18 17441 Humboldt Bank of Big Lagoon 6 Comment
  CAS-BOT-BC188538  Garrya elliptica Doris K. Kildale 1926-8-25 2550 Humboldt Mouth of Luffenholtz Creek near Trinidad Comment
  CHSC19512  Garrya elliptica J. F. Knezevich 1968-1-2 Humboldt Near Patrick's Point State Park on Highway 101. Comment
  HSC22830  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt On W.M. Lanphere's ranch 9 Comment
  LA40298  Garrya elliptica H. E. Parks; February 1933 - March 1933 4287 Humboldt Trinidad Comment
  UC1196888  Garrya elliptica Joseph P. Tracy 1924-1-20 6595 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region 6 Comment
  CAS-BOT-BC182146  Garrya fremontii Doris K. Kildale 1929-4-25 7434 Humboldt McDowell Butte - Kneeland Prairie 914 Comment
  CAS-BOT-BC182172  Garrya fremontii Doris K. Kildale 1927-2-20 2957 Humboldt McDowell Buttes near Kneeland 914 Comment
  CAS-BOT-BC182174  Garrya fremontii Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1371 Comment
  HSC97975  Garrya fremontii Cara Witte 2007-7-8 425 Humboldt Board Camp Mountain. Pack trail 4N26. 1/2 mile from Tri Board Camp intersection. 1536 Comment
  RSA152673  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1122677  Garrya fremontii A. E. Wieslander 1931-5-17 196 Humboldt Bald Hills; Hoopa Quad. Comment
  POM207448  Gastridium phleoides Joseph P. Tracy 1900-9-9 951 Humboldt Bar of Yager Creek, near Hydesville. 61 Comment
  JEPS79891  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain, at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  CAS-BOT-BC58920  Gaultheria shallon Henry M. Pollard 1948-7-27 s.n. Humboldt Mouth of Red Cap Creek near Orleans Comment
  CHSC24746  Gaultheria shallon G. Strang 1976-4-11 9 Humboldt All along e side of U.S. 101 ca. 2 mi s of Orick. 9 Comment
  HSC45586  Gaultheria shallon Diane L. Reed 1978-5-27 140 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  JEPS66612  Gaultheria shallon Lincoln Constance 1934-5-31 751 Humboldt n side of (along) Bull Creek, w boundary of Park to Grasshopper Peak (Squaw Creek) Road, South Fork Eel River Bull Creek; Bull Creek Region, South Fork Eel River, Bull Creek Comment
  RSA467223  Gaultheria shallon T. Gertrude Williamson 1924-7-11 s.n. Humboldt Arcata. Comment
  UC32704  Gaultheria shallon Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  HSC102921  Gayophytum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1015 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC54756  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-26 10293 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC74175  Gayophytum diffusum subsp. parviflorum M. A. Baker 1980-7-23 3157 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS27601  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC99579  Gayophytum humile K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 244 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
  HSC55166  Gayophytum ramosissimum Gilbert Muth 1979-8-1 12157 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC495730  Genista Joseph P. Tracy 1927-7-24 8301 Humboldt Mattole Valley; Northern Coast Ranges, Mattole Valley 152 Comment
  HSC14676  Genista monspessulana Paul Shields 1953-9-23 Humboldt 5 mi. SE of Arcata Comment
  CAS-BOT-BC217409  Gentiana plurisetosa E. V. Jotter 1912-10-1 247 Humboldt Trinity Summit, Trinity Forest 1524 Comment
  HSC19392  Gentiana plurisetosa J. O. Sawyer 1968-9-27 726 Humboldt Near Water Dog Lakes and North Trinity Mtn. 1768 Comment
  UC179966  Gentiana sceptrum Joseph P. Tracy 1914-9-6 4610 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC8453  Gentiana sceptrum D. E. Anderson 1961-9-9 1797 Humboldt Big Lagoon County Park Comment
  UC1197394  Geranium molle Joseph P. Tracy 1910-5-29 3142 Humboldt Eureka Northern Coast Region 0 Comment
  UC275490  Geranium oreganum Joseph P. Tracy 1925-5-17 6976 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1198954  Geranium solanderi Joseph P. Tracy 1931-5-23 9453 Humboldt vicinity of Trinidad (Trinidad Station); Northern Coast Region, Trinidad Station 60 Comment
  SEINET200731  Gilia capillaris Joseph P. Tracy 1933-7-25 12866 Humboldt Grouse Mtn. 1524 Comment
  BLMAR195  Gilia capitata subsp. capitata Donald Hazlett 1994-6-7 195 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC907951  Gilia capitata subsp. capitata Joseph P. Tracy 1935-6-23 13995 Humboldt French Camp Ridge 1066 Comment
  RSA742109  Gilia capitata subsp. pacifica Peter L. Morrell, Nicole Deligans 1993-8-14 317 Humboldt North Coast: about 1 mile south of McNutt-Mattole Rd., 5.2 miles south of Devil's Gate, 8.4 miles south of Cape Mendocino. 30 Comment
  UC1197924  Gilia capitata subsp. pacifica Joseph P. Tracy 1949-10-29 18595 Humboldt Eureka 30 Comment
  HSC16987  Gilia millefoliata Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
  UC1223069  Glebionis segetum Joseph P. Tracy 1950-6-17 18831 Humboldt at Eureka Comment
  HSC46969  Glehnia littoralis subsp. leiocarpa J. P. Smith, Thomas W. Nelson 1977-6-30 9211 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  RSA550922  Glyceria declinata R. F. Thorne, P. Everett 1965-8-9 35331 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC92863  Glyceria fluitans Gordon Leppig 1995-4-6 243 Humboldt Arcata, Alder Grove Pond. 12 Comment
  SEINET200358 Image available Glyceria occidentalis J. P. Tracy 1930-8-3 9147 Humboldt Buck Mtn near Little Van Duzen; lower foothills of its NW slope 762 Comment
  SEINET11678065  Glyceria striata H. P. Chandler 1901-1 1526 Humboldt Klamath River, North Coast Ranges 427 Comment
  SEINET4584957  Glyceria striata H. Ch 1901-1 1526 Humboldt Klamath River, North Coast Ranges 427 Comment
  POM358894  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-08 24080 Humboldt Spruce Cove, Trinidad. Comment
  SEINET10726165  Gnaphalium palustre Harold E. Parks, Susan T. Parks Parks 24080 Humboldt Abundant in newly cultivated areas; Spruce Cove, Trinidad. Comment
  SEINET7010139  Gnaphalium purpureum Wanda P. Vestal, A. G. Vestal 1937-6-20 s.n. Humboldt Near the coast, about 4 miles north of Petrolia. Comment
  CDA20601  Gnaphalium ramosissimum B. Freeman 2005-10-25 PDR 1368985 Humboldt Klamath Ranges; Tully Creek Rd, Weitchpec. 0 Comment
  HSC55216  Goodyera oblongifolia Walter Overton 1979-8-1 12373 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  IRVC21928  Goodyera oblongifolia J. W. Johnson Jul 1962 1075 Humboldt Base of the Samoa Peninsula in the Lamphere-Christensen Dunes Preserve. Comment
  UC179961  Goodyera oblongifolia Joseph P. Tracy 1914-9-6 4624 Humboldt between High Prairie and Snow Camp (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC28074  Goodyera oblongifolia J. D. Ackerman, A. Montalvo 1973-8-20 114 Humboldt W slope of N Trinity Mtn., E of Hoopa Comment
  CAS-BOT-BC304740  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt Salt marsh bordering Humboldt Bay at Arcata Comment
  UC1347201  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt salt marsh bordering Humboldt Bay at Arcata Arcata (region of type locality) Comment
  UC665534  Grindelia hirsutula H. E. Parks Aug 1 1941-Sep 1 1941 24201 Humboldt near Arcata Comment
  RSA861  Grindelia stricta var. stricta E. R. Johnson 1928-8-25 1145 Humboldt Eureka 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
  RSA259547  Hackelia bella D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-13 s.n. Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  HSC57978  Helenium bigelovii G. L. Clifton, Griswold 1979-7-31 11702 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC75258  Helenium bigelovii J. O. Sawyer, M. A. Ericksen 1980-8-18 4052 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  HSC76206  Helenium bigelovii Overton, Butler 1979-8-2 12532 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1223099  Helenium bigelovii Joseph P. Tracy 1949-8-11 18462 Humboldt Snow Camp 1402 Comment
  POM203674  Helenium bolanderi I. L. Wiggins 1932-7-19 5891 Humboldt 1.5 miles N of Trinidad Head. Comment
  SEINET10673347 Image available Helenium bolanderi Albert Kellogg, W. G. W. Harford 1868-1 Kellogg 469 Humboldt Comment
  JEPS35552  Helenium puberulum Lincoln Constance 1934-6-18 904 Humboldt swamp border of N. Dyerville Flat (near South Fork R.R. Sta. and P.O.); South Fork Eel River, Bull Creek Region Comment
  UC275468  Helminthotheca echioides Joseph P. Tracy 1925-11-1 7297 Humboldt Shively Northern Coast Ranges, Shively 60 Comment
  CAS-BOT-BC305849  Helminthotheca echioides F. J. Kirby 1958-7-1 s.n. Humboldt Near Bridgeville 304 Comment
  HSC49372  Hemitomes congestum T. Jimerson, J. Pageau 1979-6-15 581 Humboldt West of FS 11N21, on the boundary between Sections 27 and 28. 762 Comment
  CAS-BOT-BC310076  Hemizonella minima Carl B. Wolf 1934-7-2 5861 Humboldt Snow Camp (mts. E. of Korbel). Near Small Lake 1371 Comment
  HSC32149  Hemizonella minima D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5612 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC70841  Hemizonella minima M. A. Baker 1980-6-7 1788 Humboldt Near Brush Mtn. 1128 Comment
  HSC73539  Hemizonella minima Gail Newton 1980-7-14 1475 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC100436  Hemizonella parvula Carl C. Marshall Jun 1886 25 Humboldt South Fork Mtn. Comment
  RSA11161  Hemizonia congesta C. B. Wolf 1927-8-29 1218 Humboldt Devils' Gate, S of Cape Mendocino Comment
  UC1199372  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1934-7-9 13343 Humboldt Dobbyn Creek 152 Comment
  UC275464  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt near the s fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 304 Comment
  CAS-BOT-BC306079  Hemizonia congesta subsp. clevelandii W. R. Dudley 1899-6-29 s.n. Humboldt Bank of Eel River Comment
  CAS-BOT-BC309990  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1937-7-19 15456 Humboldt Buck Mountain, lower foothills of its northwest slope 914 Comment
  JEPS12644  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1931-6-28 9598 Humboldt lower foothills of its nw slope Buck Mountain 762 Comment
  UCD132992  Hemizonia congesta subsp. tracyi R. N. Raynor 1935-1 s.n. Humboldt above Fort Seward. 762 Comment
  CAS-BOT-BC310180  Hesperevax sparsiflora var. brevifolia Joseph P. Tracy 1905-4-30 2173 Humboldt Northern Coast Region. At Humboldt Bay Comment
  UC165831  Hesperevax sparsiflora var. brevifolia Joseph P. Tracy 1905-4-30 2173 Humboldt Humboldt Bay Comment
  CAS-BOT-BC311078  Heterotheca oregona var. rudis Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  CAS-BOT-BC311082  Heterotheca oregona var. rudis L. R. Abrams 1916-7-11 6066 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  HSC67012  Heterotheca oregona var. rudis J. P. Smith 1971-10-9 4987 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC97539  Heterotheca oregona var. rudis Ivy Watson 2008-9-17 17 Humboldt Mad River Park on West End Rd. near pumping station 8 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
  JEPS49746  Heuchera micrantha var. diversifolia Harley P. Chandler May 1901 1231 Humboldt North Coast Ranges 457 Comment
  UC902002  Heuchera micrantha var. diversifolia Joseph P. Tracy 1947-5-10 17682 Humboldt Garberville, near airport Garberville 152 Comment
  JEPS26204  Heuchera micrantha var. macropetala Joseph P. Tracy 1948-8-15 18139 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC902009  Heuchera micrantha var. macropetala Joseph P. Tracy 1948-8-15 18139 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC55746  Heuchera rubescens G. L. Clifton, Griswold 1979-7-26 10269 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CAS-BOT-BC312394  Hieracium albiflorum Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC67473  Hieracium albiflorum J. P. Smith, Steve Selva 1970-6-14 3834 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1199467  Hieracium albiflorum Joseph P. Tracy 1933-7-25 12831 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC312392  Hieracium albiflorum Doris K. Kildale 1925-8-17 1196 Humboldt Triity Summit 1828 Comment
  UC1103738  Hierochloe occidentalis Joseph P. Tracy 1942-5-16 17348 Humboldt Garberville 152 Comment
  HSC13454  Hippuris vulgaris D. E. Anderson 1965-10-25 4161 Humboldt Georgia-Pacific Co., N Big Lagoon 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
  HSC59059  Hippuris vulgaris Thomas Wood 1979-5-17 186 Humboldt Clam Beach pond, E of Clam Beach-Little River Beach, along Hwy. 101 3 Comment
  UC275348  Hirschfeldia incana Joseph P. Tracy 1924-8-4 6739 Humboldt railroad station Eureka 0 Comment
  BLMAR44  Holcus lanatus Brad Barr June, 1982 44 Humboldt King range, lake ridge near pond Comment
  CAS-BOT-BC280739  Holcus lanatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC26537  Holcus lanatus J. P. Smith 1971-9-9 5040 Humboldt Mad River above the Fish Hatchery. Comment
  HSC47786  Holcus lanatus Michael A. Watkins 1978-6-10 7 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  RSA20812  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt N Coast Range, Wildcat ridge, 6.3 miles S of Ferndale. 305 Comment
  SEINET10771149  Holodiscus discolor J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13011 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  UCSC000355  Holodiscus discolor H. L. Person 1932-6-25 s.n. Humboldt E. of Korbel Korbel - Eureka Comment
  UC38668  Hordeum brachyantherum subsp. brachyantherum Schmidt Humboldt Humboldt Bay Comment
  UC902136  Horkelia californica Joseph P. Tracy 1949-7-7 18332 Humboldt Table Bluff Ridge 91 Comment
  HSC35282  Horkelia tridentata var. flavescens J. D. Ackerman 1975-6-18 472 Humboldt Big Hill Rd., 10.4 mi. E of Hoopa and Hwy. 96 Comment
  UCD106154  Hosackia oblongifolia Tofsrud 1948-9-1 s.n. Humboldt Clear Lake, on road from Horse Mt. to Grouse Mt. 1371 Comment
  UC1239765  Hydrophyllum occidentale Joseph P. Tracy 1927-6-12 8158 Humboldt Horse Mountain; Northern Coast Ranges 1219 Comment
  HSC62688  Hydrophyllum tenuipes Michelle Stevens 1979-4-21 60 Humboldt Ponds across from Clam Beach 0 Comment
  HSC56966  Hypericum anagalloides Walter Overton, Butler 1979-7-23 9489 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC62864  Hypericum anagalloides J. M. DiTomaso 1979-5-20 1046 Humboldt Big Lagoon Park, 8 mi. N of Trinidad Comment
  UC1198410  Hypericum anagalloides Joseph P. Tracy 1913-6-1 4076 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC204783  Hypochaeris radicata Joseph P. Tracy 1918-7-5 5023 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  CAS-BOT-BC206846  Iliamna latibracteata C. B. Wolf 1931-8-28 2367 Humboldt Redwood Highway, 3 miles north of Orick, Davison's Ranch on Prairie Creek 60 Comment
  HSC44568  Ipomopsis aggregata Brad Klipfel 1973-7-15 186 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS804  Ipomopsis aggregata Joseph P. Tracy 1932-7-12 10440 Humboldt Corral Prairie Trinity Summit 1584 Comment
  SEINET4170666  Iris Unknown 1942-5-12 Humboldt Klamath River 2 mi.'s N of Orleans Comment
  HSC13895  Iris douglasiana N. D. Dennis 1965-5-5 51 Humboldt 1 mi. N of Trinidad on Hwy. 101 Comment
  JEPS542  Iris douglasiana W. L. Jepson 1932-8-9 16539 Humboldt Bull Creek 152 Comment
  HSC100379  Iris macrosiphon J. Moore 2007-6-13 Humboldt Horse Mountain Botanical Area, off Hwy. 1. 1220 Comment
  UC4291  Iris macrosiphon J. Burtt Davy 1899-6-21 5745 Humboldt Hoopa Valley; North Coast Ranges Comment
  BLMAR99  Iris purdyi Jennifer Anthony-Wheeler 1994-6-8 99 Humboldt Red Mountain, growing among chapparel above bog 1097 Comment
  HSC34872  Iris purdyi Thomas W. Nelson, James Nelson 1975-5-5 1781 Humboldt Beside Hwy. 101, 5 mi. S of Salmon Creek bridge Comment
  RSA135947  Iris purdyi Lee W. Lenz 1953-5-17 18320 Humboldt 4.5 miles west of Willow Creek, Highway 299 Comment
  SD90234  Iris purdyi Benjamin C. Stone 1952-6-23 142 Humboldt Dense redwood forest in Humboldt Redwoods State Park. Comment
  UC146222  Iris purdyi Joseph P. Tracy 1908-6-27 2684 Humboldt head of Little Laribee Creek; Northern Coast Ranges 914 Comment
  SEINET12045029  Iris tenax T. Jimerson, Pageau, J. 1979-1 436 Humboldt on Forest Road 12N20, 0.2 mi N of Forest Road 15N01 (G.O. Road), Orleans 710 Comment
  HSC44639  Iris tenuissima Diane L. Reed 1978-4-22 34 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC70745  Iris tenuissima R. York 1980-5-17 519 Humboldt Near Le Perron Peak 792 Comment
  HSC13903  Iris tenuissima Francis Winter 1960-4-24 Humboldt 7 mi. W of Hoopa Indian Reservation, Bair Rd. 915 Comment
  HSC90644  Isolepis cernua Gail Newton 1982-5-2 2513 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC112456  Isolepis cernua Joseph Prince Tracy 1927-9-4 8363 Humboldt Sand Dunes, near Samoa on Humboldt Bay; depressions where water collects in winter.q 6 Comment
  HSC45954  Juncus balticus subsp. ater J. P. Smith, Steve Selva 1970-6-14 3822 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC67959  Juncus bolanderi Steve Selva, J. P. Smith 1970-6-14 3524 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC249817  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon 6 Comment
  JEPS66910  Juncus bolanderi Joseph P. Tracy 1918-7-3 4992 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  UC2494  Juncus bolanderi H. N. Bolander June 1867 6584 Humboldt near Elk Ridge Comment
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Jul 31 2010
  UCD141361  Juncus bufonius Linda M. Barker 1976-6-1 1551 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET7421723 Image available Juncus bufonius H. E. Parks, S. T. Parks 1943-1 24254 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC102141  Juncus confusus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1046 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC98855  Juncus covillei Cara Witte 2008-7-30 972 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  JEPS66996  Juncus effusus subsp. pacificus W. L. Jepson 1936-8-17 17908 Humboldt 2 mi s Fields's Landing (near Still's Ranch) Comment
  UC1103047  Juncus ensifolius Joseph P. Tracy 1919-9-18 5238 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC183677  Juncus ensifolius Joseph P. Tracy 1912-7-24 3809 Humboldt Eureka Northern Coast Region 0 Comment
  RSA129408  Juncus hesperius H. S. Yates 1936-6-23 5867 Humboldt 2 miles northwest of Fortuna. 30 Comment
  HSC46961  Juncus lescurii J. P. Smith, Thomas W. Nelson 1977-6-30 9220 Humboldt Samoa Peninsula just E of the drag strip. Comment
  SEINET3879721  Juncus lescurii James P. Smith, Thomas W. Nelson 1977-6-30 9220 Humboldt Samoa Peninsula just east of the drag strip.; 0 Comment
  HSC63280  Juncus parryi M. A. Baker 1979-6-27 930 Humboldt Rock faces E of Oregon Creek Comment
  UC201995  Juncus phaeocephalus Joseph P. Tracy 1918-7-3 4992 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  RSA44475  Juncus tenuis Henry M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  HSC56961  Juncus xiphioides Overton, Butler 1979-7-23 9475 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  CAS-BOT-BC235890  Keckiella corymbosa Carl D. Duncan 1920-9-21 333 Humboldt Hoopa Comment
  RSA167236  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19315 Humboldt On rock ledges at Ishi-pishi Falls west side of Klamath River opposite mouth of Salmon River. Comment
  SD87718  Keckiella corymbosa Frank W. Peirson 1926-7-12 7025 Humboldt Klamath River near Weitchpec Comment
  UCR136653  Keckiella corymbosa H. M. Pollard 1948-8-12 s.n. Humboldt Near mouth of Pearch Creek, near Orleans 366 Comment
  UC1222465  Keckiella lemmonii Joseph P. Tracy 1939-8-16 16425 Humboldt near Grouse Mountain; Friday Ridge 1219 Comment
  UC1222453  Kickxia elatine Joseph P. Tracy 1934-8-14 13572 Humboldt Alton North Coast Ranges (along Van Duzen River) 30 Comment
  UC902208  Kickxia elatine Joseph P. Tracy 1946-8-25 17648 Humboldt near mouth of Van Duzen River; Eel River 15 Comment
  UC183952  Koeleria macrantha Joseph P. Tracy 1912-6-9 3662 Humboldt Alton; Northern Coast Region 30 Comment
  UC1199393  Kyhosia bolanderi Joseph P. Tracy 1932-7-16 10613 Humboldt Corral Prairie; Trinity summit 1584 Comment
  CAS-BOT-BC341441  Lagophylla ramosissima Henry M. Pollard 1945-8-27 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC89711  Lamium purpureum Larry Levine, Manuel Pachero, Ben Murphey 1989-2-24 1 Humboldt HSU campus, garden plot SW of Buckhouse 40 Comment
  UC302193  Lapsana communis Joseph P. Tracy 1926-6-6 7553 Humboldt Bair's on Redwood Creek Northern Coast Ranges, Redwood Creek 304 Comment
  JEPS9904  Lasthenia californica subsp. californica Lincoln Constance 1934-6-3 809 Humboldt road from High Rock (on Redwood Hwy 1 mi n of Dyerville) to Horse Prairie; South Fork Eel River, Bull Creek Region Comment
  UC129575  Lasthenia californica subsp. californica Harley P. Chandler May 1901 1155 Humboldt North Coast Ranges, Humboldt Bay 3 Comment
  UC169320  Lasthenia californica subsp. californica Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3626 Humboldt between Hydesville and Alton; Hydesville 30 Comment
  UC169054  Lasthenia glaberrima Joseph P. Tracy 1912-7-21 3779 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC352932  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt Larrabee Creek, near Bosworth's 457 Comment
  UC1199076  Lathyrus glandulosus Joseph P. Tracy 1930-8-24 9170 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC495704  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1927-5-15 8042 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC14743  Lathyrus littoralis J. W. Johnson 1962-4-29 1298 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC44618  Lathyrus littoralis Laura Witherspoon 1977-5-25 Humboldt Manila Comment
  HSC102562  Lathyrus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1549 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1222415  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1942-6-23 17226 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC14750  Lathyrus nevadensis var. nevadensis D. E. Anderson 1965-5-1 3574 Humboldt Along Bluff Creek Rd., about 2.5 mi. from its junction with Hwy. 96. Comment
  CAS-BOT-BC205042  Lathyrus palustris Doris K. Kildale 1926-6-25 2177 Humboldt Big Lagoon Comment
  BLMAR275  Lathyrus polyphyllus Jennifer Anthony-Wheeler 1999-7-30 275 Humboldt Lacks Creek, growing by fdsides adjacent to forest 1219 Comment
  SEINET202727  Lathyrus polyphyllus Joseph Tracy 1948-7-11 18074 Humboldt Willow Creek Canyon along Trinity Highway Comment
  UC303183  Lathyrus polyphyllus Joseph P. Tracy 1923-6-22 6344 Humboldt Bald Mt. Northern Coast Ranges 914 Comment
  UC495708  Lathyrus polyphyllus Joseph P. Tracy 1932-7-20 10735 Humboldt just w Corral Prairie; Klamath Mountains 1524 Comment
  SDSU4206  Lathyrus sulphureus D. F. Howe 1962-5-21 3298 Humboldt 16 miles north of Garberville on #101. 61 Comment
  UCR84790  Lathyrus tingitanus Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 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
  UC709417  Lathyrus vestitus Joseph P. Tracy 1933-5-18 12195 Humboldt near Essex; Mad River 30 Comment
  RSA168907  Lathyrus vestitus subsp. bolanderi Joseph P. Tracy 1942-7-26 17298 Humboldt Valley of South Yager Creek. 610 Comment
  JEPS79919  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1929-5-5 8579 Humboldt Phillipsville, facing South Fork of Eel River South Fork of Eel River; Northern Coast Ranges 121 Comment
  UC931335  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-8 19093 Humboldt 1 mi w Willow Creek (near Highway 299) Comment
  HSC33755  Layia carnosa A. Montalvo 1975-5-24 272 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC5914  Layia carnosa Francis Winter 1960-5-6 Humboldt Mouth of Mad River. Comment
  JEPS13463  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt sand dunes of coean beach at mouth Little River; Northern Coast Region Comment
  UC1197587  Ledum glandulosum J. P. Tracy 1899-7-22 84 Humboldt immediate vicinity of Eureka 0 Comment
  UC179962  Lemna turionifera Joseph P. Tracy 1914-9-13 4630 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  JEPS36508  Leontodon saxatilis subsp. saxatilis F. W. Peirson 1926-7-13 7056 Humboldt near Blue Lake; Mad River Comment
  OBI40320  Leontodon saxatilis subsp. saxatilis Ralph N. Philbrick 1974-8-28 s.n. Humboldt Behind sandy beach and road fill, Hwy 101, S of Orick Comment
  SD87756  Leontodon saxatilis subsp. saxatilis F. W. Peirson 1926-7-13 7056 Humboldt Mad River, near Blue Lake Comment
  CHSC31922  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 1/4 mi w of its jct with Arcata Rd, ca. 5 mi s of Arcata in Bayside. 15 Comment
  CHSC33025  Lepidium didymum James P. Smith 1973-5-26 6876 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  UC201614  Lepidium nitidum Joseph P. Tracy 1918-5-5 4927 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  POM193006  Leptosiphon androsaceus H. E. Parks, Joseph P. Tracy 1930-5-25 0794 Humboldt Vicinity of Bridgeville, Laribee Valley Comment
  HSC35037  Leptosiphon bicolor Thomas W. Nelson, James Nelson 1975-5-24 1871 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC908950  Leptosiphon latisectus Joseph P. Tracy 1927-5-8 7976 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  CAS-BOT-BC341824  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC34189  Lessingia nemaclada Harley P. Chandler June, 1901 1503 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  CAS-BOT-BC341822  Lessingia nemaclada James T. Vale 1979-7-26 s.n. Humboldt Elk Creek Comment
  CAS-BOT-BC341828  Lessingia nemaclada Henry M. Pollard 1945-8-28 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  JEPS37563  Leucanthemum vulgare Lincoln Constance 1934-6-6 827 Humboldt Fire trail Dyerville tottorse Prairie; Bull Creek Region Comment
  HSC67026  Leucanthemum vulgare J. P. Smith 1970-6-7 3803 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC67896  Leucanthemum vulgare J. P. Smith 1973-5-26 6806 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC102512  Lewisia triphylla M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1498 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  CAS-BOT-BC283516  Leymus X vancouverensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC56158  Ligusticum grayi G. L. Clifton, Terry Griswold 1979-8-1 12025 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC56332  Ligusticum grayi Overton, Butler 1979-8-2 12702 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC21521  Lilaeopsis occidentalis J. W. Johnson 1962-6-5 Humboldt Lanphere Farm, Samoa Peninsula, Hollow 10 Comment
  HSC21522  Lilaeopsis occidentalis D. E. Anderson 1962-7-14 2272 Humboldt W edge of Freshwater Lagoon Comment
  CAS-BOT-BC130690  Lilium occidentale David D. Keck 1948-7-1 5978 Humboldt 3 mi. N. Big Lagoon Comment
  JEPS563  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  SEINET3992216  Lilium pardalinum Unknown 1908-6-27 2868 Humboldt Valley of Van Duzen River, opposite Buck Mountain 305 Comment
  HSC15580  Lilium rubescens Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  UC1198231  Lilium rubescens Joseph P. Tracy 1911-7-7 3419 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek, near the summit) 1219 Comment
  CAS-BOT-BC133009  Lilium washingtonianum subsp. purpurascens Miss. M. Meinecke 1926-5-30 s.n. Humboldt Orleans Bar, on Klamath R. Comment
  CAS-BOT-BC133010  Lilium washingtonianum subsp. purpurascens Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1676 Comment
  RSA12530  Lilium washingtonianum subsp. purpurascens Carl B. Wolf 1934-7-2 5908 Humboldt 7 miles from Bald Mountain on road to Snow Camp (mountains east of Korbel) 1067 Comment
  UC1198229  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1932-7-19 10726 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC176376  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1913-7-20 4366 Humboldt ridge between Redwood Creek and Willow Creek (on Willow Creek road); Northern Coast Ranges 914 Comment
  JEPS19592  Limnanthes douglasii Lincoln Constance 1934-5-29 721 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  HSC90320  Limonium californicum Jean Hanson 1980-6-22 102 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  RSA183591  Limonium californicum D. E. Anderson 1963-9-15 2813 Humboldt Humbolt Bay Comment
  UC1911670 Image available Limonium californicum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1203 Humboldt ca 2 mi n Eureka (salt marshes bordering Humboldt Bay); Humboldt Bay Comment
  UC741169  Limonium californicum C. C. and S. K. Harris 1939-9-8 973 Humboldt Humboldt Bay; s shore, salt marsh Comment
  JEPS58168  Linanthus androsaceus Joseph P. Tracy 1940-5-17 16553 Humboldt Larrabee Valley 731 Comment
  UC146166  Linanthus bicolor Joseph P. Tracy 1908-6-9 2650 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1198572  Linanthus bicolor Joseph P. Tracy 1906-5-6 2437 Humboldt near Hydesville; Wolverton Gulch 60 Comment
  UC179969  Linnaea borealis var. longiflora Joseph P. Tracy 1914-7-5 4571 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC12370  Linum bienne Steve Dorei 1970-10-9 99 Humboldt Humboldt State College Campus near Union St., just S of the fish hatchery. Comment
  HSC15806  Linum lewisii Frances Oldridge 1946-1 Humboldt Fickle Hill Comment
  UCD110597  Linum lewisii var. lewisii Ferd Ambrosini; J. W. Logan 1926-4-1 s.n. Humboldt Fr. Ranch to Fernando. Comment
  SEINET12185780  Linum micranthum J. P. Tracy 1950-1 18994 Humboldt on the Albee Rd., Buck Mountain, high meadow on W side, 3 mi S of Burr Valley 1158 Comment
  CHSC110733  Listera cordata Dean Wm. Taylor 2011-5-4 21113 Humboldt Alderpoint Road in the vicinity of the headwaters of Knack Creek 777 Comment
  UC1083192  Lithocarpus densiflorus Herbert L. Mason 1928-7-14 4899 Humboldt near Garberville (East Fork of Eel River); East Fork of Eel River Comment
  UC1196365  Lithocarpus densiflorus Joseph P. Tracy 1948-8-15 18137 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC502989  Lithocarpus densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt near Boynton Prairie; Northern Coast Ranges 609 Comment
  UC492223  Lithophragma Joseph P. Tracy 1932-4-24 9823 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC6863  Lobularia maritima R. T. Forester 1963-3-31 35 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC1199427  Logfia gallica Joseph P. Tracy 1938-6-9 15884 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC283400  Lolium multiflorum Henry M. Pollard 1948-7-27 s.n. Humboldt Road to Red Cap Creek near Orleans Comment
  UCD66068  Lolium multiflorum R. N. Raynor 1935-6-7 Humboldt Fort Seward. Comment
  SEINET194910 Image available Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt Arcata near 10 Comment
  HSC66291  Lomatium ciliolatum var. ciliolatum M. A. Baker 1980-6-8 1896 Humboldt Near Buck Flat. 1554 Comment
  HSC21516  Lomatium dissectum var. dissectum H. E. Parks, J. P. Tracy 1935-6-16 11278 Humboldt Buck Mtn. 915 Comment
  UC1197160  Lomatium dissectum var. dissectum Joseph P. Tracy 1933-7-25 12888 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 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
  HSC70249  Lomatium macrocarpum M. A. Baker 1980-6-8 1914 Humboldt Near Buck Flat. 1554 Comment
  HSC74381  Lomatium macrocarpum M. A. Baker 1980-6-28 2477 Humboldt Near Mad River Buttes 1445 Comment
  HSC75960  Lomatium macrocarpum Overton, Butler 1979-7-24 9738 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC249606  Lomatium nudicaule Joseph P. Tracy 1922-4-30 6023 Humboldt mouth of S. Fork Trinity R.; Northern Coast Ranges, S. Fork Trinity R. 152 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
  OBI81634  Lomatium utriculatum Tracey Call, Viola Call 1964-6-19 2271 Humboldt Dry, west-facing hillside 1 mile north of Harris P.O. and ca 3.5 miles south of Harris Jct. Comment
  UC1186378  Lomatium utriculatum R. Ornduff 1960-6-1 6182 Humboldt ca. 6 mi. e. Garberville (on rd. to Alder Point) Comment
  UC1222487  Lonicera conjugialis Joseph P. Tracy 1950-8-8 19287 Humboldt Croghan Hole Trinity Summit 1676 Comment
  HSC81931  Lonicera hispidula var. vacillans Thomas W. Nelson, Jane P. Nelson 1979-7-3 4962 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC95659  Lonicera hispidula var. vacillans Steven Lee 2004-4-25 22 Humboldt South Fork Rd., from Hwy. 299 to County Rd. 341, 1/8 mi. down river access trail at end of Rd. Comment
  CAS-BOT-BC241494  Lonicera involucrata var. ledebourii Carl B. Wolf 1927-8-22 770 Humboldt Big Lagoon Comment
  CHSC13520  Lonicera involucrata var. ledebourii A. R. Morrison 1974-4-27 Humboldt Scattered in open and partially shaded areas along coast ca. 2 mi. N of Trinidad. Comment
  CHSC23308  Lonicera involucrata var. ledebourii Robert F. Thorne; P. Everett 1965-8-9 35301 Humboldt Big Lagoon 3 Comment
  CHSC31282  Lonicera involucrata var. ledebourii Mark Stopher 1980-4-11 47 Humboldt Occasional in brushy areas along Elk River. 1 Comment
  HSC81932  Lotus aboriginus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4961 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UC1128989  Lotus aboriginus A. E. Wieslander 1931-5-21 212 Humboldt Kneeland China Flat Quad. Comment
  UC162851  Lotus aboriginus J. P. Tracy 1906-5-20 2462 Humboldt immediate vicinity Eureka 0 Comment
  UC1223442  Lotus aboriginus Joseph P. Tracy 1937-8-15 15668 Humboldt 10 mi se Orick (near Sherman Lyon's Ranch) Comment
  RSA246781  Lotus corniculatus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-8 35231 Humboldt North edge of Eureka, east of Highway 101 5 Comment
  UCSB30598  Lotus corniculatus Edwards, David 1974-7-13 Humboldt North side of 7th St. just W of its overpass of U.S. 101, Arcata 18 Comment
  UC1046517  Lotus denticulatus R. Bacigalupi, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3405 Humboldt 4 mi w bridge crossing the Van Duzen River (along State Highway 36, Dinsmore); Dinsmore Comment
  UC1223398  Lotus formosissimus J. P. Tracy 1935-6-8 13941 Humboldt just e Eureka city limits (on Santa Clara Tract); Eureka 0 Comment
  UC1052456  Lotus humistratus H. E. Parks Aug 1941 24183 Humboldt Little River State Park Comment
  SEINET6932529  Lotus humistratus Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt About 4 miles southeast of Kneeland. Comment
  UC1197290  Lotus humistratus Joseph P. Tracy 1901-8-2 1239 Humboldt near Hydesville; Northern Coast Region, Van Duzen River, Yager Creek 60 Comment
  JEPS51821  Lotus nevadensis var. nevadensis W. L. Jepson 1902-7-3 1979 Humboldt Three Creeks to Willow Creek Comment
  POM232036  Lotus unifoliolatus I. L. Wiggins 1930-7-22 4689 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  HSC56969  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-23 9498 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA183610  Lotus wrangelianus R. I. Bonn 1965-5-7 29 Humboldt Four mi els west of Arcata on Lanphere Rd. Comment
  CAS-BOT-BC60241  Lunaria annua Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  HSC6869  Lunaria annua D. Zittin 1970-5-13 1 Humboldt Arcata Comment
  RSA751818  Lupinus Robert F. Thorne 1957-9-3 19015 Humboldt Little River Beach, few miles S of Trinidad. Comment
  JEPS109579  Lupinus adsurgens Dean W. Taylor 2002-9-12 18340 Humboldt ca. 0.5 mi N of Lake Prairie 1097 Comment
  UC1223277  Lupinus adsurgens Joseph P. Tracy 1933-7-26 12912 Humboldt Grouse Mountain, top of mountain 1630 Comment
  UC659305  Lupinus adsurgens Charles Piper Smith 1929-7-13 4407 Humboldt top of w slope Blake Lookout, South Fork Mountain (So. Fork Mtn.); Trinity Forest, South Fork Mountain Comment
  UC1776380  Lupinus albicaulis R. Spellenberg 1990-7-9 Humboldt Extreme E edge county, 7 air mi. WNW of Hyampom, 42 mi S of Calif Hwy 299 and Berry Summit on USFS Rd. 1, ca 1 mi S of Blake Mtn. on South Fork Mountain. 1767 Comment
  UC302117  Lupinus albicaulis var. shastensis Joseph P. Tracy 1926-5-15 7495 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC1872  Lupinus albifrons F. Morrell 1949-5-14 19 Humboldt Weitchpec Comment
  SEINET200685  Lupinus albifrons Joseph P. Tracy 1926-5-9 7458 Humboldt Valley of South Yager Creek Comment
  CDA27379  Lupinus arboreus T. C. Fuller 1961-9-28 7052 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  CHSC55898  Lupinus arboreus L. P. Janeway 1987-7-31 2547 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  HSC2122  Lupinus arboreus C. B. Wolf 1927-8-29 1209 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  HSC89700  Lupinus arboreus Larry Levine, Pacheco, Murphey 1989-5-5 54 Humboldt SW of Hwy. 101 bridge over Little River Comment
  UC161547  Lupinus bicolor Joseph P. Tracy 1911-6-25 3251 Humboldt Bucksport , region about Humboldt Bay (Northern Coast Region) 0 Comment
  HSC32075  Lupinus bicolor Glenn McGourty 1974-4-27 35 Humboldt Along side of Mattole River Comment
  HSC103944  Lupinus elmeri A. Thoele, Sydney Carothers 1995-7-14 56 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
  RSA87026  Lupinus luteolus F. W. Peirson 1926-7-13 7057 Humboldt Near Blue Lake, Mad River Comment
  RSA15550  Lupinus nanus subsp. nanus Carl B. Wolf 1927-8-30 1244 Humboldt Paradise, 5 or 6 miles N of Ettersburg. Comment
  HSC63182  Lupinus onustus M. A. Baker 1979-7-10 1024 Humboldt Above Bluff Creek Comment
  HSC93220  Lupinus variicolor Ananda Dickie, Wendy Hooper, Rose Madrone, Kyla Waddell 1996-5-12 57 Humboldt Arcata bottoms, intersection of Janes Rd. and Jackson Ranch Rd., 200 m E of the Simpson Administration Bldg. 24 Comment
  HSC70225  Luzula comosa M. A. Baker 1980-6-8 1886 Humboldt Near Buck Flat. 1554 Comment
  HSC45018  Luzula comosa R. Sutherland 1978-4-23 13 .23478 Humboldt Telegraph Ridge at head of Green Ridge 707 Comment
  HSC96237  Luzula comosa April A. Allard, Gregory D. O'Connell 2005-6-3 2 Humboldt 19.3mi S of Hwy. 299 on NF1 1246 Comment
  UC1152143  Luzula comosa Joseph P. Tracy 1951-6-26 19550 Humboldt at Snow Camp; in fir woods at Snow Camp Comment
  HSC48994  Luzula multiflora subsp. multiflora M. A. Baker 1979-5-23 754 Humboldt Comment
  UCR263353  Luzula subsessilis Peter F. Zika 2011-7-3 25492 Humboldt Outer North Coast Ranges (NCoRo), Titlow Hill Road, 3.0 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain 1310 Comment
  RSA32655  Lychnis coronaria Doris K. Kildale 1927-7-3 3651 Humboldt Willow Creek Flat. Comment
  CHSC96710  Lycopodiella inundata Gordon Leppig 1997-6-19 460 Humboldt Big Lagoon County Park, Big Lagoon Bog. North eastern edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  CAS-BOT-BC61934  Lycopodium clavatum Donald Branscomb 1959-9-1 s.n. Humboldt Trinidad Comment
  HSC97349  Lycopodium clavatum D. E. Anderson 1965-11-26 4176 Humboldt 2 mi. E. of Moonstone Beach Comment
  RSA20816  Lycopodium clavatum C. B. Wolf 1937-9-10 9314 Humboldt 3.4 miles E of Trindad at hammond Lumver Co. s Camp 20 (abandoned) 152 Comment
  HSC99631  Lysichiton americanus Gordon Leppig 1998-3-25 728 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC35500  Lysichiton americanus Petrovich May 1961 Humboldt Warren Cr. Comment
  HSC59495  Lysichiton americanus M. A. Ericksen 1979-4-20 212 Humboldt Adjacent to Cranell Rd. and Little River Dr. junction Comment
  UC1198466  Lythrum hyssopifolia Joseph P. Tracy 1920-8-15 5380 Humboldt Klamath River at Bluff Creek, Northern Coast Ranges Bluff Creek; Northern Coast Ranges, Klamath River, Bluff Creek 152 Comment
  UC1223209  Madia elegans Joseph P. Tracy 1950-8-4 19260 Humboldt ne of Lookout station (Grasshopper Peak, at head of Canoe Creek); Bull Creek State Park, Canoe Creek Comment
  UC166085  Madia exigua Joseph P. Tracy 1911-7-5 3303 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  CAS-BOT-BC343020  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  HSC35609  Madia gracilis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2021 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  CAS-BOT-BC343591  Madia sativa J. Clausen 1932-9-18 678 Humboldt 11 miles south of Ferndale on the road to Capetown Comment
  HSC40133  Madia sativa Thomas W. Nelson 1976-8-10 3167 Humboldt Beside Hwy. 101 at the turnoff to Sunnybrae Comment
  RSA134601  Mahonia nervosa P. C. Everett, E. K. Balls 1959-10-25 23966 Humboldt 8.8 mi. ne. from Blue Lake, U.S. Hwy 299, Arcata to Willow Creek. 274 Comment
  RSA246852  Mahonia nervosa R. F. Thorne, P. Everett 1965-8-5 35138 Humboldt Mt. Chamisal: below sumit. 534 Comment
  CHSC10104  Maianthemum dilatatum J. W. Johnson 1962-4-21 1287 Humboldt Arcata. Along Lanphere Lane, Samoa Peninsula. Comment
  UC1134631  Maianthemum dilatatum R. Stahelin 1933-5-17 Humboldt Arcata City Park Eureka Quad., Arcata City Park Comment
  UCSB15906  Maianthemum dilatatum Breedlove, Dennis 1962-6-8 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  CAS-BOT-BC511455  Maianthemum racemosum subsp. amplexicaule Volney Rattan 1883-6-1 s.n. Humboldt Near the summit between Pilot Creek and the Trinity River Comment
  RSA0009527  Maianthemum racemosum subsp. amplexicaule Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  CAS-BOT-BC347412  Malacothrix floccifera Marcus E. Jones 1931-7-16 29095 Humboldt Junction, East of Arcata Comment
  CAS-BOT-BC140132  Malus fusca L. R. Abrams; G. T. Benson 1924-5-17 10730 Humboldt Trinidad Head Comment
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Jun 17 2020
  CAS-BOT-BC140138  Malus fusca Doris K. Kildale 1926-7-10 2343 Humboldt Big Lagoon Comment
  UC275344  Malva parviflora Joseph P. Tracy 1924-10-19 6928 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC38075  Marah oregana Thomas W. Nelson, James Nelson 1976-5-30 2632 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS42470  Marah oregana W. L. Jepson 1932-7-24 16377 Humboldt near Camp Grant; Eel River 91 Comment
  UC1199283  Matricaria discoidea Joseph P. Tracy 1933-5-20 12217 Humboldt Capetown 30 Comment
  UC1197431  Medicago polymorpha Joseph P. Tracy 1932-5-1 9883 Humboldt Vicinity of Garberville North Coast Ranges 121 Comment
  CAS-BOT-BC271115  Melica bulbosa Joseph P. Tracy 1935-7-24 14194 Humboldt Near Ranger Station, Trinity Summit 1828 Comment
  CAS-BOT-BC269349  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 182 Comment
  UCD87157  Melica californica A. H. Murphy 1951-6-12 57 Humboldt Fleming range plant count area on Ft. Seward ranch, south fork of the Eel River Drain. Comment
  CAS-BOT-BC281325  Melica harfordii W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  UC188817  Melica harfordii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 5210 Humboldt Russ Ranch Comment
  UC905595  Melica harfordii David D. Keck 1948-7-2 6012 Humboldt 1 mi n Richardson Grove (U.S. Hwy 101, along South Fork of Eel River) Comment
  CAS-BOT-BC281026  Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Head of Brett Hole, Trinity Summit 1828 Comment
  HSC10348  Melica subulata G. N. Bos 1965-5-15 253 Humboldt 8 mi. W of Berry Summit, along Hwy. 299 762 Comment
  UC1103161  Melica subulata H. E. Parks and Joseph P. Tracy 1934-6-27 11075 Humboldt Grouse Mt. 1432 Comment
  UC552707  Melica subulata Joseph P. Tracy 1935-4-14 13778 Humboldt Miranda; along South Fork of Eel River 121 Comment
  SEINET10925519  Melica subulata Harley P. Chandler Chandler 1174 Humboldt 30 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
  RSA167274  Melilotus albus Joseph P. Tracy 1949-7-7 18336 Humboldt Blue Slide, on Van Duzen River. Comment
  JEPS63288  Melissa officinalis W. L. Jepson 1932-8-2 16472 Humboldt Dyerville 76 Comment
  RSA43834  Mentha canadensis H. M. Pollard 1947-8-28 s.n. Humboldt Near old placer mine, north of Forest Service Station, Orleans. Comment
  HSC90755  Mentha pulegium Gail Newton 1983-8-21 3856 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC1225906  Menziesia ferruginea Joseph P. Tracy 1947-5-24 17687 Humboldt Big Lagoon 15 Comment
  JEPS80896  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1572 Humboldt U.S. Highway 101 Mile 128.75 Comment
  CAS-BOT-BC428712  Micranthes californica Joseph P. Tracy 1927-3-27 7851 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork. 182 Comment
  SEINET11793954  Micropus californicus var. californicus J. P. Tracy 1947-1 17681 Humboldt near Briceland Comment
  UC1223188  Micropus californicus var. californicus Joseph P. Tracy 1950-6-15 18774 Humboldt 5 mi n Harris (on the old Overland Road); Mail Ridge, on the old Overland Road Comment
  UC1239522  Microseris douglasii subsp. douglasii Joseph P. Tracy 1938-6-9 15887 Humboldt 3 mi w Harris 914 Comment
  CAS-BOT-BC322680  Microseris laciniata Volney Rattan 1879-6-1 s.n. Humboldt Unspecified Comment
  JEPS13225  Microseris laciniata subsp. laciniata Lincoln Constance 1934-5-24 624 Humboldt s slope lower Look Prairie; South Fork Eel River, Bull Creek region, s slope of Lower Lo 121 Comment
  UC175985  Microseris laciniata subsp. laciniata Joseph P. Tracy July 1908 2893 Humboldt ridge between Van Duzen River and Mad River (Humboldt and Trinity Counties); Northern Coast Ranges, ridge between Van Duzen River and Mad 914 Comment
  UC582738  Microseris laciniata subsp. laciniata Joseph P. Tracy 1934-7-6 13661 Humboldt at Sibley Ranch (Iaqua); , at Sibley Ranch 609 Comment
  CAS-BOT-BC349240  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  HSC6099  Microseris nutans J. P. Tracy 1930-7-16 8900 Humboldt Near McKay Camp. 1677 Comment
  HSC99590  Microsteris gracilis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 259 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
  HSC99080  Microsteris gracilis C. Witte 2007-5-22 83 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  LA209133  Mimulus aurantiacus C. C. & S. K. Harris; 1936-6-9 sn Humboldt Above Carlotta 60 Comment
  HSC48858  Mimulus breweri Brad Klipfel 1973-6-10 53 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC20708  Mimulus dentatus Jack Rockwell 1962-5-5 58 Humboldt W side Jacoby Creek 18 Comment
  POM268160  Mimulus dentatus H. C. Cantelow 1936-5-18 s.n. Humboldt North of Orick. Comment
  UC1196791  Mimulus douglasii Joseph P. Tracy 1922-5-29 6079 Humboldt head South Yager Creek; Northern Coast Ranges 762 Comment
  UC1196835  Mimulus grandis Joseph P. Tracy 1914-5-30 4483 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  HSC90635  Mimulus guttatus Gail Newton 1983-6-5 3555 Humboldt Elk River Wildlife Area, Eureka Comment
  UC582700  Mimulus guttatus Joseph P. Tracy 1932-7-16 10612 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC20730  Mimulus guttatus J. R. Kahl 1962-5-11 28 Humboldt 2 mi. S of Trinidad along Hyw. 101 Comment
  RSA454336  Mimulus guttatus Francis W. Pennell, Joseph P. Tracy 1940-7-7 26087 Humboldt Route 299. Headwaters of Willow Creek. 762 Comment
  RSA46855  Mimulus guttatus Doris K. Kildale 1927-6-25 3566 Humboldt Between Horn and Shelter Cove. Comment
  SEINET4677981  Mimulus guttatus Unknown 1971-7-5 105 Humboldt Approx. 8 miles east of Petrolia.; 0 Comment
  JEPS10790  Mimulus inodorus Joseph P. Tracy 1934-8-6 13561 Humboldt near Blue Lake; Mad River 15 Comment
  UC582712  Mimulus inodorus Joseph P. Tracy 1935-7-24 14198 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC582716  Mimulus inodorus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8983 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC445201  Mimulus moniliformis Mrs. M. H. Manning July 1901 302 Humboldt near Hupa Comment
  HSC76220  Mimulus moschatus Overton, Butler 1979-7-24 9768 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UCSB15766  Mimulus moschatus Breedlove, Dennis 1961-7-4 Humboldt Highway 299; 17.5 miles east of Highway 101 609 Comment
  UC582711  Mimulus nasutus Joseph P. Tracy 1923-5-20 6218 Humboldt Kneeland Prairie 762 Comment
  HSC12793  Mimulus pilosus Jana Kattenhorn 1970-10-28 149 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC44508  Mimulus primuloides var. primuloides Brad Klipfel 1973-7-1 119 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM192727  Minuartia cismontana H. E. Parks, Joseph P. Tracy 1930-5-25 0866 Humboldt Laribee Valley. Comment
  UC427871  Minuartia cismontana H. E. Parks and J. P. Tracy 1930-5-25 866 Humboldt Laribee Valley Comment
  CAS-BOT-BC388621  Minuartia douglasii Doris Kildale 1931-6-6 10875 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  SDSU9556  Mitella caulescens D. F. Howe 1963-8-7 3706 Humboldt 23 miles W of west entrance to Six Rivers National Forest on #299. 213 Comment
  HSC59448  Mitella ovalis Kenneth Clark 1979-4-2 23 Humboldt 1/4 mi. E of end of Granite Ave. above Jolly Giant Creek 46 Comment
  HSC102181  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1095 Humboldt Patterson Meadows 1566 Comment
  HSC55834  Mitella trifida G. L. Clifton, Griswold 1979-7-25 10760 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC76262  Mitella trifida Teresa Prendusi 1981-7-21 270 Humboldt Near Whiteys Peak 1646 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
  UC161044  Moehringia macrophylla Joseph P. Tracy 1908-6-8 2631 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET6646077 Image available Mollugo verticillata Joseph P. Tracy 1920-1 5363 Humboldt Klamath River at Bluff Creek Comment
  HSC102085  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 989 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC176998  Monardella odoratissima subsp. glauca Joseph P. Tracy 1912-7-31 3928 Humboldt Near summit Buck Mountain; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC318614  Monardella villosa L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road. Comment
  HSC100506  Monardella villosa Carl C. Marshall Jun 1886 276 Humboldt Hoopa. Comment
  UC479138  Monardella villosa subsp. villosa Marcus E. Jones, A. M. 1931-7-16 28821 Humboldt Junction, East of Arcata Comment
  SEINET4173669 Image available Monardella villosa var. glabella Joseph P. Tracy 1947-1 17782 Humboldt Trinity Summit; ridge top one mile west of Mud Springs, in serpentine formation 1158 Comment
  RSA52284  Monotropa uniflora D. Meadows 1950-7-21 a.n. Humboldt Near Bear Trap on Irvine Trail, Prairie Creek State Park. Comment
  UC1223248  Montia chamissoi Joseph P. Tracy 1950-6-25 18894 Humboldt 3 mi s of Burr Valley (on w side of Buck Mountain, near the Sproston place on the road to the Albee Pass); Buck Mountain 1158 Comment
  UC183597  Montia fontana Joseph P. Tracy 1913-6-17 41621 1/2 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  UC275281  Montia howellii Joseph P. Tracy 1923-6-20 6307 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  CAS-BOT-BC445157  Montia parvifolia Doris K. Kildale 1928-6-24 5263 Humboldt Redwood Creek at Berry's 289 Comment
  HSC102504  Montia parvifolia M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1489 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC162970  Montia parvifolia Joseph P. Tracy 1908-6 2708 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC7878  Montia parvifolia Harley P. Chandler May, 1901 1261 Humboldt North Coast Ranges, Redwood Belt Redwood Belt; North Coast Ranges, Redwood Belt 152 Comment
  UCD110310  Morella californica T. I. Storer 1931-7-1 2220 Humboldt Near Samoa. Comment
  HSC10395  Muhlenbergia filiformis H. E. Parks, J. P. Tracy 1934-6-27 11083 Humboldt Grouse Mtn. Comment
  HSC58649  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-7-31 11677 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  UC212880  Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC526744  Muhlenbergia filiformis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8920 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (in wet meadow) 1676 Comment
  CAS-BOT-BC101671  Myrica californica Joseph P. Tracy 1931-4-12 9332 Humboldt Dows Prairie 60 Comment
  UC275529  Myrica californica Joseph P. Tracy 1924-1-20 6596 Humboldt near Samoa (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  HSC77878  Myriophyllum hippuroides Scott White 1973-10-29 Humboldt Clam Beach pond Comment
  HSC91593  Narcissus tazetta E. Mackey 1986-7-21 Humboldt Patrick's Point State Park near Ceremonial Rock. Comment
  UC23649  Navarretia intertexta Harley P. Chandler Jun 1901 1411 Humboldt Klamath River North Coast Ranges 243 Comment
  SEINET196701  Navarretia leucocephala Joseph P. Tracy 1928-6-24 8476 Humboldt East Ranch, between Middle and North Yager Creeks. 762 Comment
  JEPS70393  Navarretia leucocephala subsp. minima W. L. Jepson 1927-7-3 12366 Humboldt Miranda station South Fork Eel River 228 Comment
  UC1197902  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1908-6 2931 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC907952  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC909128  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  UC906677  Navarretia squarrosa Joseph P. Tracy 1942-7-18 17282 Humboldt Garberville 152 Comment
  UC908872  Navarretia squarrosa Joseph P. Tracy 1935-7-18 14103 Humboldt Table Bluff 6 Comment
  UC249522  Nemophila heterophylla Joseph P. Tracy 1922-4-30 5987 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA114997  Nemophila menziesii var. atomaria E. K. Balls, Lee W. Lenz 1955-5-15 20740 Humboldt 13.5 miles southwest from Ferndale along Old Coast road to Capetown. 335 Comment
  RSA33408  Nemophila menziesii var. atomaria Doris K. Kildale 1929-2-19 4265 Humboldt Little River. Comment
  HSC6969  Noccaea fendleri subsp. californica D. E. Anderson 1962-7-14 2261 Humboldt Comment
  UCD110186  Notholithocarpus densiflorus B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  UCD110194  Notholithocarpus densiflorus S. P. Lynch 1975-6-9 1371 Humboldt ca. 20.4 mi. E of Arcata on Hwy. 299, heading towards Willow Creek. Comment
  HSC34230  Notholithocarpus densiflorus var. densiflorus Linda M. Barker 1974-5-11 176 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  UC673043  Oenanthe sarmentosa Joseph P. Tracy 1940-8-25 16713 Humboldt near High Prairie Bald Mt. 1005 Comment
  UC146162  Olsynium douglasii var. douglasii E. Ethel Tracy 1905-5-1 Humboldt Harris Northern Coast Ranges 609 Comment
  HSC99007  Orobanche fasciculata var. franciscana Cara Witte 2008-7-14 894 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1380 Comment
  BLMAR257  Orobanche pinorum Jennifer Anthony-Wheeler 1997-7-10 257 Humboldt King range, UNCOMMON, parasitized ocean spray, growing on rocky, open forest slope 304 Comment
  UC1197450  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1908-6 2881 Humboldt Valley of Van Duzen River, opposite Buck Mountain. Comment
  HSC55161  Orthilia secunda Gilbert Muth 1979-8-1 12130 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1197565  Orthilia secunda Joseph P. Tracy 1919-9-18 5251 Humboldt Trinity Summit 1524 Comment
  HSC34279  Orthocarpus imbricatus K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  HSC76202  Osmorhiza berteroi Overton, Butler 1979-8-2 12517 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC75448  Osmorhiza occidentalis J. O. Sawyer 1980-7-18 3582 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC642277  Osmorhiza occidentalis Joseph P. Tracy 1933-7-26 12906 Humboldt Grouse Mountain 1630 Comment
  HSC21587  Osmorhiza purpurea R. D. Zortman 1963-5-12 39 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  UC176987  Oxalis albicans subsp. pilosa Joseph P. Tracy 1912-6-9 3682 Humboldt Alton Northern Coast Ranges 30 Comment
  UC902196  Oxalis albicans subsp. pilosa Joseph P. Tracy 1942-5-16 17336 Humboldt Garberville 152 Comment
  UCR275113  Oxalis articulata Charity A. Hartshorn 2016-5-14 38 Humboldt Arcata Community Forest 244 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
  JEPS43140  Oxalis oregana W. L. Jepson 1932-7-26 16414 Humboldt Bull Creek Comment
  SBBG67545  Oxalis oregana L. Rowntree 1931-7-24 Humboldt Carlotta Comment
  UC1197419  Oxalis oregana Joseph P. Tracy 1906-5-6 2440 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  HSC83316  Oxalis oregana R. W. Becking 1987-5-2 Humboldt Humboldt State University campus, adjacent to back steps on S side of Natural Resources building Comment
  SEINET3347146 Image available Oxalis suksdorfii Joseph P. Tracy 1930-6-22 8796 Humboldt Redwood Creek, at Berry's Comment
  HSC102179  Oxalis trilliifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1092 Humboldt Patterson Meadows 1566 Comment
  SEINET3347162 Image available Oxalis trilliifolia A. A. Heller 13787 Humboldt Humbolt Camp, between Scotia and Pepperwood Comment
  UC427872  Packera bolanderi var. bolanderi Parks and Tracy 1930-5-25 865 Humboldt Lower Van Duzen River, e Humboldt County Lower Van Duzen River Comment
  UC526836  Panicum miliaceum subsp. miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  SEINET200959 Image available Parapholis incurva Joeseph P. Tracy 1937-6-5 15328 Humboldt Mouth of Little River. 3 Comment
  HSC82967  Parapholis strigosa A. L. Eicher 1986-7-7 Humboldt Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  UC1222163  Paxistima myrsinites Joseph P. Tracy 1950-6-15 18822 Humboldt 7 mi. n. Harris (at Huestis Rock, n.e. side of Mail Ridge); Mail Ridge Comment
  HSC28196  Pedicularis densiflora Thomas W. Nelson 1971-4-4 368 Humboldt Bridgeville Comment
  RSA183616  Pedicularis densiflora D. E. Anderson 1965-5-1 3556 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek. Comment
  CAS-BOT-BC69340  Pellaea brachyptera Joseph P. Tracy 1937-7-24 15516 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  UC218629  Pellaea mucronata var. mucronata Joseph P. Tracy 1921-5-30 5494 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC1074  Pellaea mucronata var. mucronata J. P. Tracy 1933-6-13 12561 Humboldt Hoopa Mtn., near summit on rd. from Hoopa westward to Bair's 1067 Comment
  HSC75553  Penstemon anguineus J. O. Sawyer, R. J. Cole 1977-7-3 3010 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC39933  Penstemon anguineus J. O. Sawyer 1970-6-25 2292 Humboldt 1646 Comment
  HSC25398  Penstemon azureus J. O. Sawyer 1970-6-24 2213 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 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
  RSA43894  Penstemon deustus subsp. deustus H. M. Pollard 1947-8-30 s.n. Humboldt North road along Klamath River near Van Fleet Ranch, Orleans region. Comment
  JEPS28976  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16544 Humboldt Garberville Garberville (along river) 152 Comment
  HSC97604  Penstemon laetus subsp. sagittatus Cara Witte 2007-5-29 141 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  JEPS11633  Penstemon laetus var. sagittatus Joseph P. Tracy 1935-7-14 14073 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS7918  Penstemon rattanii Joseph P. Tracy 1921-6-12 5822 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC39986  Pentagramma triangularis Linda M. Barker 1976-3-11 1329 Humboldt 3 mi. W of Arcata Comment
  HSC70388  Pentagramma triangularis Gail Newton 1980-6-7 143 Humboldt Near Brush Mtn. 1128 Comment
  UC642305  Perideridia howellii Joseph P. Tracy 1939-9-4 16474 Humboldt Larrabee Valley; gully in foothills at edge of valley 731 Comment
  UC906663  Perideridia kelloggii Joseph P. Tracy 1948-8-11 18476 Humboldt 2 to 6 mi s from Grouse Mt.; Kinsey Ridge 1280 Comment
  CAS-BOT-BC419193  Persicaria maculosa Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  UCR13417  Petasites palmatus T. Wetherwax 1973-4-1 730401- 2 Humboldt Old U.S. Hwy 101, just north of Myer's Flat. 152 Comment
  JEPS1443  Phacelia bolanderi W. L. Jepson 1902-6 1910 Humboldt Hubbard's Station to Camp Grant (cliffs of river); Eel River 60 Comment
  JEPS47303  Phacelia californica L. R. Heckard and R. Bacigalupi 1964-7-28 1428 Humboldt about 1 mi e ocean (where Petrolia-Ferndale first reaches the beach) Comment
  HSC98877  Phacelia egena Cara Witte 2007-5-29 137 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  HSC99429  Phacelia procera K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 78 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET200961 Image available Phalaris angusta J. P. Tracy 1935-5-25 13856 Humboldt Fort Seward 107 Comment
  UC526832  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  UC577627  Phalaris aquatica H. S. Yates 1936-6-23 5857 Humboldt 2 mi se mouth of Mad River; Eureka Quad. Comment
  UCD88768  Phalaris californica Joseph P. Tracy 1951-6-26 19599 Humboldt Butter Valley Road, about 2 miles E of junction of Kneeland Prairie Road. Comment
  CAS-BOT-BC253586  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt Eureka 60 Comment
  HSC26164  Phleum alpinum J. P. Smith, Steve Selva 1970-6-30 4127 Humboldt Comment
  CAS-BOT-BC250884  Phleum pratense Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  HSC99494  Phleum pratense K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 154 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
  UC427879  Phlox gracilis Parks and Tracy 1930-5-25 795 Humboldt Laribee Valley 792 Comment
  CAS-BOT-BC78199  Picea sitchensis L. R. Abrams 1922-6-25 8247 Humboldt near South Bay Comment
  POM213420  Picea sitchensis C. B. Wolf 1930-10-28 1781 Humboldt 5 miles S Ferndale on road to Petrolia. 152 Comment
  UC1174871  Picea sitchensis P. C. Everett and E. K. Balls 1959-10-25 Humboldt 3 mi s from Ferndale (on Old Coast Road to Capetown) 426 Comment
  UC637022  Picea sitchensis Edward Lee 1934-8-17 1154 Humboldt 35 mi n of Eureka (near e shore of Big Lagoon) Comment
  UCR32234  Picea sitchensis David J. Keil 1983-7-1 17295 Humboldt Between Ferndale & Bear River Ridge Road along Mattole Road Comment
  UCR48598  Picris echioides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 12 Humboldt Loleta, along Cannibal Road 8 Comment
  POM264447  Pinus contorta var. contorta H. E. Parks, S. T. Parks 1938-03 24125 Humboldt Spruce Cove, Trinidad. 61 Comment
  RSA384301  Pinus contorta var. contorta E. A. Purer 1932-7-27 4132 Humboldt Samoa, near Arcata. Comment
  HSC72826  Pinus monticola Gail Newton 1980-6-16 192 Humboldt Near Onion Mtn. 1280 Comment
  RSA46498  Pinus monticola Doris K. Kildale 1927-3-27 2998 Humboldt 1 mile north of Trinidad. Comment
  UC1196925  Pinus ponderosa Joseph P. Tracy 1926-6-27 7678 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC176371  Piperia michaelii Joseph P. Tracy 1912-7-21 3763 Humboldt Alton Northern Coast Ranges 30 Comment
  HSC99639  Pityopus californicus T. Jimerson, J. Pageau 1979-7-31 698 Humboldt Near Whiting Ridge. Close to the town of Hyampom, CA. 1204 Comment
  UC1239573  Plagiobothrys bracteatus Joseph P. Tracy 1919-5-31 5152 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC99421  Plagiobothrys hispidulus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 70 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
  UC526818  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC3633  Plagiobothrys nothofulvus Elrid H. Spinas 1948-5-15 5 Humboldt Horse Mtn. Comment
  SD29277  Plagiobothrys nothofulvus Lincoln Constance 1934-5-23 617 Humboldt South Fork Eel River; southeast slope of mountain above Look Prairie. 366 Comment
  UC1222213  Plagiobothrys reticulatus Joseph P. Tracy 1942-5-16 17337 Humboldt Garberville 152 Comment
  UC206145  Plagiobothrys reticulatus Joseph P. Tracy 1913-6-22 4259 Humboldt opposite Buck Mountain (Van Duzen River Valley); Northern Coast Range, Van Duzen River Valley 762 Comment
  JEPS60972  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt 10 mi up stream from mouth; Bear River 152 Comment
  HSC69871  Plagiobothrys tenellus Thomas W. Nelson 1978-5-28 4093 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UC1196145  Plantago erecta Joseph P. Tracy 1946-6-2 17553 Humboldt near Samoa; Humboldt Bay 6 Comment
  UCSB15784  Plantago erecta Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC1196138  Plantago erecta Joseph P. Tracy 1938-7-12 16057 Humboldt Table Bluff, w of light house Table Bluff 6 Comment
  SEINET12330007  Plantago hirtella var. galeottiana F. H. Utech 1986-1 86 -409 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  HSC16858  Plantago maritima D. E. Anderson 1961-9-13 1818 Humboldt Comment
  HSC67513  Plantago maritima J. P. Smith 1976-7-3 8933 Humboldt Just N of Samoa Bridge Comment
  HSC27019  Platanthera dilatata var. leucostachys Brad Klipfel 1973-8-9 266 Humboldt Big Lagoon County Park Comment
  HSC99365  Platanthera sparsiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 14 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1540409  Platystemon californicus Gary L. Hannan 1976-5-25 166 Humboldt New Bavy Base Road, 6.6 km S of bridge to Eureka Comment
  UC602503  Plectritis brachystemon Joseph P. Tracy 1933-5-20 12250 1/2 Humboldt Northern Coast Ranges, Mattole Valley Mattole Valley; Northern Coast Ranges, Mattole Valley 60 Comment
  HSC96284  Plectritis congesta subsp. congesta J. Breton, A. Livingston 2005-6-8 5 Humboldt 2.0 mi. S of Hwy. 299 on Titlow Rd. 1032 Comment
  HSC103124  Pleuropogon refractus M. Mesler, Robin Bencie 2009-7-7 807 Humboldt Big Hill Rd, 10.7 miles from Hwy 96 1402 Comment
  UC127319  Pleuropogon refractus Harley P. Chandler May, 1901 1107 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 15 Comment
  HSC10620  Poa annua R. D. Zortman 1963-3-15 46 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC26347  Poa annua T. O. Osborne 1970-4-5 78 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  CAS-BOT-BC254713  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains. Head of Brett Hole 1828 Comment
  HSC10662  Poa bulbosa D. E. Anderson 1963-5-18 2446 Humboldt 1.4 mi. W of Berry Summit. Comment
  HSC99416  Poa bulbosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 65 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
  UC1103191  Poa confinis Joseph P. Tracy 1936-5-30 14836 Humboldt near Samoa (Humboldt Bay) 6 Comment
  SEINET236442 Image available Poa howellii Joseph P. Tracy 1906-6-10 2486 Humboldt Kneeland Prairie. 762 Comment
  UCD91136  Poa howellii A. H. Murphy 1951-2-27 3 Humboldt along the Eel River, near Fort Seward Hotel. Comment
  UCSC000061  Poa howellii H. S. Yates 1936-6-17 5709 Humboldt Lower NW slope of Buck Mtn. - South Fork Pk. 792 Comment
  HSC73570  Poa pratensis Gail Newton 1980-7-14 1507 Humboldt Near Last Chance Ridge. 1219 Comment
  RSA44525  Poa pratensis Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans. Comment
  HSC98530  Poa pratensis subsp. pratensis Cara Witte 2007-7-8 442 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  UC1132727  Poa pratensis subsp. pratensis H. S. Yates 1936-5-23 5854 Humboldt 2 mi e of mouth of Mad River; Eureka Quadrangle Comment
  HSC102627  Poa secunda subsp. secunda M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1612 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC40520  Poa secunda subsp. secunda Thomas W. Nelson, Jane P. Nelson 1976-7-1 2927 Humboldt Along ridge W of Lassic Peak (Signal Peak). 1738 Comment
  UC1256295  Poa secunda subsp. secunda R. K. Gierisch and D. H. Esplin 1969-7-1 3537 Humboldt Grouse Mt; Six Rivers Forest/Experimental Area Comment
  UC34123  Poa secunda subsp. secunda Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5658 Humboldt Hoopa Summit Comment
  HSC31788  Poa trivialis Donald Spalinger 1974-4-20 20 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  SEINET200570 Image available Poa trivialis J. P. Tracy 1909-6-13 2998 Humboldt On Mad River, 5 miles from its mouth, on damp banks in partial shade. 30 Comment
  CAS-BOT-BC244205  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad. Bluffs facing ocean Comment
  UC1116249  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta, open flat by old Strong's District School House 5 miles east of town 60 Comment
  JEPS79956  Polygonum bolanderi Joseph P. Tracy 1921-8-21 5944 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC55083  Polygonum douglasii G. L. Clifton, Griswold 1979-7-31 11747 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA466318B  Polygonum douglasii Thomas W. Nelson, James Nelson 1976-7-28 3057 Humboldt Growing on meadow along 2E27 just N of its Jct. 1S07 1524 Comment
  HSC98067  Polygonum douglasii var. douglasii Cara Witte 2007-7-11 508 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC57966  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11683 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA178533  Polygonum minimum Joseph P. Tracy 1950-8-8 19281 Humboldt On trail betw Box Camp and Croghon Hole. 1677 Comment
  UC672955  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UCD100641  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit, Corral Prairie. 1584 Comment
  JEPS79950  Polygonum polystachyum Joseph P. Tracy 1940-10-18 16775 Humboldt Eureka 30 Comment
  CDA2924  Polygonum polystachyum Thomas W. Nelson, M. Alcasas 1978-10-1 4555 Humboldt Highway 101 right-of-way just north of Humboldt State University exit. 0 Comment
  UC1052469  Polygonum sachalinense H. E. and S. T. Parks July 1952 24448 Humboldt Hwy 10 s Elk River Bridge Comment
  UC1198077  Polygonum sachalinense Joseph P. Tracy 1942-9-20 17319 Humboldt along hwy near mouth of Elk River 6 Comment
  SEINET3404070 Image available Polygonum spergulariiforme Joseph P. Tracy 1947-7-9 17835 Humboldt Horse Mountain, Jeffrey Pine Comment
  UC218626  Polypodium Joseph P. Tracy 1918-4-7 4865 Humboldt mouth of Little River; Northern Coast Ranges 15 Comment
  HSC95652  Polypodium calirhiza Andrea Pickart 2002-4-5 39 Humboldt Lanphere Dunes 15 Comment
  JEPS19017  Polypodium glycyrrhiza Joseph P. Tracy 1925-11-25 7326 Humboldt near the S Fork Trinity River Valley; Northern Coast Ranges 182 Comment
  POM118352  Polypodium glycyrrhiza Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  SEINET200790 Image available Polypodium glycyrrhiza Joseph P. Tracy 1936-3-8 14775 Humboldt Miranda; oak groved along South Fork of Eel River Comment
  HSC100121  Polypodium glycyrrhiza Margaret Weatherwax 1975-6-26 7 Humboldt Road from Korbel to Maple Creek, 2 mi. SW of Korbel Comment
  UC404748  Polypodium glycyrrhiza H. E. Parks June 1924 2837 Humboldt Lawrence Creek Comment
  CAS-BOT-BC72083  Polypodium scouleri Ira L. Wiggins 1957-6-20 14133 Humboldt East side of highway, Trinidad Comment
  HSC1130  Polypodium scouleri W. R. Supernaugh, Jr. 1964-12-11 14 Humboldt 300 yards S of Trinidad Harbor 9 Comment
  UC1241361  Polypodium scouleri R. J. Rodin 1961-8-10 6807 Humboldt Sequoia Park Eureka; Sequoia Park Comment
  UC1132889  Polypogon australis H. L. Person 1932-5-19 Humboldt near Arcata (<Mendocino cutover area>); Eureka Quad. Comment
  UC183480  Polypogon interruptus Joseph P. Tracy 1912-7-26 3834 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC10833  Polypogon maritimus J. P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake. 15 Comment
  HSC101540  Polypogon monspeliensis J. P. Smith 2010-5-29 12889 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  HSC26179  Polypogon monspeliensis J. P. Smith, Steve Selva 1970-6-14 3837 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC62871  Polypogon monspeliensis J. M. DiTomaso 1979-4-21 887 Humboldt Clam Beach. Comment
  UC50475  Polypogon monspeliensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5514 Humboldt near Pepperwood; near Pepperwood Comment
  UCD91354  Polypogon monspeliensis A. H. Murphy 1948-5-1 s.n. Humboldt Blocksburg-Alderpoint road, 3 miles from Alderpoint. Comment
  HSC76356  Polystichum imbricans Denis Kearns 1981-7-8 148 Humboldt Near Bluff Creek 622 Comment
  UC906748  Polystichum imbricans subsp. imbricans Joseph P. Tracy 1947-7-9 17842 Humboldt Horse Mt. 1432 Comment
  HSC13042  Polystichum munitum T. C. DeCew 1970-11-14 35 Humboldt HSU Campus Comment
  SDSU1640  Polystichum munitum Harvey 1938-8-13 2251 Humboldt Redwood Park. Comment
  RSA44515  Polystichum munitum Henry M. Pollard 1947-8-28 s.n. Humboldt Perch Creek Canyon, Mount Orleans Comment
  SEINET11722267  Polystichum munitum C. S. Kaut 2000-1 2 Humboldt Trinidad Comment
  HSC98080  Polystichum scopulinum Cara Witte 2007-7-10 469 Humboldt Horse Mountain Botanical Area. Forest Servie Road 6N38 1349 Comment
  CAS-BOT-BC102907  Populus trichocarpa Doris K. Kildale 1926-8-8 2471 Humboldt Dyerville Bridge 45 Comment
  RSA171967  Populus trichocarpa Robert F. Thorne 1957-9-2 18990 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC249538  Populus trichocarpa Joseph P. Tracy 1922-10-8 6121 Humboldt Mad River at Blue Lake (Northern Coast Ranges); , Mad River at Blue Lake 30 Comment
  UC249560  Populus trichocarpa Joseph P. Tracy 1922-10-8 6123 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  CAS-BOT-BC454089  Potamogeton pusillus subsp. tenuissimus William Anderson 1964-8-4 s.n. Humboldt Shore Acres. McKinleyville Comment
  HSC18733  Potentilla anserina subsp. pacifica W. R. Brigham 1962-5-19 13 Humboldt S of Big Lagoon. Comment
  HSC62830  Potentilla anserina subsp. pacifica J. M. DiTomaso 1979-4-21 883 Humboldt Clam Beach Comment
  HSC95736  Potentilla anserina subsp. pacifica Steven Lee 2004-4-10 11 Humboldt Drive from intersection of V St. and Samoa Blvd. in Arcata 1/8 mi. towards parking area to S 200 Comment
  HSC96466  Potentilla anserina subsp. pacifica Gordon Leppig 1997-8-3 638 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  CAS-BOT-BC142024  Potentilla drummondii Joseph P. Tracy 1932-7-10 10391 Humboldt Wet meadow at Corral Prairie - Trinity Summit 1524 Comment
  UC492177  Potentilla gracilis Joseph P. Tracy 1932-7-10 10387 Humboldt wet meadow at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC508640  Prosartes hookeri Doris K. Kildale 1926-7-22 2420 Humboldt Metropolitan, woods near Canyon Park Comment
  HSC97528  Prosartes hookeri Frances Reuss Harmon 2001-3-31 15 Humboldt Six Rivers National Forest, Gray Falls picnic area Comment
  HSC74736  Prunella vulgaris Gail Newton 1981-7-24 2305 Humboldt Near Chaparral Mtn. 1433 Comment
  UC1541658  Prunella vulgaris Harold E. Parks May 1933 4309 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  SEINET13947064 Image available Prunella vulgaris W. J. Ferlatte, B. D. Rogers 1966-1 2083 Humboldt 1 mi E of Forest Glen; 2400 ft alt., T29E, R8E, SEC19 732 Comment
  RSA34246  Prunella vulgaris var. lanceolata L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  CAS-BOT-BC159976  Prunus emarginata Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  CAS-BOT-BC159986  Prunus emarginata Doris K. Kildale 1925-8-17 1228 Humboldt Trinity Summit 1917 Comment
  HSC101978  Prunus emarginata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 875 Humboldt Patterson Meadows 1566 Comment
  UC666846  Prunus emarginata Joseph P. Tracy 1937-7-29 15594 Humboldt South Fork Mountain, near top at Hyampom Trail South Fork Mountain; , Hyampom Trail 1676 Comment
  CAS-BOT-BC154737  Prunus virginiana var. demissa H. E. McMinn 1922-8-5 356 Humboldt Along Van [Dusen] Duzen River Comment
  UC1198768  Prunus virginiana var. demissa Joseph P. Tracy 1908-6 2852 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC467868  Prunus virginiana var. demissa P. E. Goddard 1906-6 671 Humboldt Lassecks Peak (=Signal Peak) Lassecks Peak Comment
  CAS-BOT-BC356655  Pseudognaphalium californicum Joseph P. Tracy 1937-7-11 15415 Humboldt Vicinity of Garberville 121 Comment
  JEPS20479  Pseudognaphalium ramosissimum Joseph P. Tracy 1936-8-24 15169 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1223109  Pseudognaphalium ramosissimum Joseph P. Tracy 1950-9-10 19364 Humboldt foothills 1/2 mi s Cape Town (along coast road. Cape Ridge one mi e of Cape Mendecino); Cape Ridge 152 Comment
  CAS-BOT-BC357606  Pseudognaphalium stramineum Joseph P. Tracy 1937-6-26 15364 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  JEPS20481  Pseudognaphalium stramineum Joseph P. Tracy 1937-8-3 15614 Humboldt near Blue Lake; Mad River 15 Comment
  HSC74454  Pseudognaphalium thermale Gail Newton 1980-8-10 2008 Humboldt Near Blake Mtn. 1798 Comment
  BLMAR148  Pseudotsuga menziesii Donald Hazlett 1994-6-9 148 Humboldt King range, E-facing slope off hourse mountain ridge 609 Comment
  CAS-BOT-BC80120  Pseudotsuga menziesii Doris K. Kildale 1926-11-27 2840 Humboldt Alton Hill, old terrace above lower Van Duzen River Comment
  HSC40003  Pseudotsuga menziesii var. menziesii Linda M. Barker 1976-9-3 1689 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC32927  Psilocarphus oregonus Thomas W. Nelson, James Nelson 1973-5-28 970 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC54568  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-7-24 9596 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  JEPS58815  Pyrola dentata Joseph P. Tracy 1926-6-6 7564 Humboldt Hoopa Mountain. On road West from Hoopa Valley, Northern Coast Ranges 914 Comment
  HSC55032  Pyrola picta Overton, Butler 1979-7-31 11471 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC1197578  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit near Corral Prairie; Trinity Summit 1584 Comment
  SFV18591  Pyrola picta T. W. Nelson, J. P. Nelson 1987-6-11 8569 Humboldt Along an unnumbered branch road off USFS Road 11H21. Comment
  HSC35601  Quercus chrysolepis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2012 Humboldt French Camp, Bald Hills. Comment
  JEPS37484  Quercus chrysolepis W. L. Jepson 1903-6 2204 Humboldt Briceland, Expedition from Ukiah to Southern Humboldt Co., via the Blue Rock Ridge and return via Fort Bragg Briceland Comment
  UC303002  Quercus chrysolepis Joseph P. Tracy 1926-6-6 7571 Humboldt on road w Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UC5545  Quercus chrysolepis unknown 1867-6-17 Humboldt Elk Ridge Comment
  SEINET10970825  Quercus chrysolepis Jones 1985-6-6 Jones 112 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, querus Chrysolepis, quercus vaccinifolia habitat 1143 Comment
  UC1175127  Quercus garryana P. C. Everett and E. K. Balls 1959-10-24 23955 Humboldt 4.7 mi s from Bluff Creek (Hwy 96, from Orleans to Weitchpec) 121 Comment
  UC502986  Quercus garryana Joseph P. Tracy 1928-9-30 8514 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC1602338  Quercus kelloggii P. E. Goddard 1901-7-12 63 Humboldt Hupa Comment
  UCD165092  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 42.5 mi. from Garberville along Alderpoint Rd. 481 Comment
  HSC55031  Quercus sadleriana Overton, Butler 1979-7-31 11470 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  JEPS49020  Quercus sadleriana Hilda W. Grinnell 1932-7-9 4 Humboldt above Kerlin Creek; South Fork Mt. 1524 Comment
  UC1225942  Quercus sadleriana Joseph P. Tracy 1947-8-24 17909 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1388987  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi ne Hoopa (along trail to Trinity Summit, from end of Forest Rd) 1371 Comment
  HSC72811  Quercus vacciniifolia Gail Newton 1980-7-22 1686 Humboldt Near Devils Backbone 1554 Comment
  HSC8296  Quercus vacciniifolia C. B. Wolf 1927-8-28 1173 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Rd. to Blue Lake Comment
  JEPS38033  Quercus vacciniifolia W. L. Jepson Jul 16 1902-Jul 23 1902 2061 Humboldt trail to the Devil's Backbone Trinity Summit 2133 Comment
  UC667980  Quercus vacciniifolia Joseph P. Tracy 1935-7-28 14336 Humboldt Head of Brett Hole Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC98340  Quercus wislizeni Jimerson, J. Pageau 1979-6-12 540 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  UC160948  Ranunculus alismifolius var. alismellus Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5767 Humboldt Trinity Summit Comment
  SEINET13716687  Ranunculus californicus Unknown 1916-4-30 4681 Humboldt Around Humboldt Bay Comment
  HSC18154  Ranunculus muricatus J. L. Baker 1965-4-10 35 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  BLMAR650  Ranunculus occidentalis Jennifer Wheeler 2012-5-9 650 Humboldt Lacks Creek, Beaver Ridge Road 865 Comment
  UC1537332  Ranunculus occidentalis Gordon H. True Jr. 1936-5-11 466 Humboldt 12 mi w Miranda (e slope of ridge); Elk Ridge 457 Comment
  UCD96942  Ranunculus occidentalis R. N. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  UC1196245  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1933-7-11 12701 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1542906  Ranunculus orthorhynchus var. orthorhynchus H. E. and S. T. Parks May 1930 755 Humboldt Laribee Valley Comment
  UC1196267  Ranunculus parviflorus Joseph P. Tracy 1928-5-13 8434 Humboldt near Centerville; Northern Coast Ranges, Fleener's Gulch 60 Comment
  POM126168  Ranunculus parviflorus W. Humboldt 1922-5-21 6053 Humboldt Blue Lake, locally common in depressions by roadside. 30 Comment
  POM118708  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  SD93107  Ranunculus repens W. Bertsch 1953-7-30 Humboldt Five miles north of Arcata Comment
  HSC34804  Ranunculus repens var. repens Scott M. Kruse 1975-4-9 2 Humboldt HBM Samoa Blvd. and Crescent Way, Arcata 5 Comment
  RSA245205  Raphanus sativus Thomas W. Nelson 1971-4-12 374 Humboldt At the junction of the Hookton Rd and Copenhagen Rd. Comment
  UC598568  Rhamnus W. K. Fisher 1899-5-24 3 Humboldt Humboldt Bay Comment
  UC1197986  Rhamnus californica Joseph P. Tracy 1918-9-29 5111 Humboldt Myer's Ranch Northern Coast Ranges, South Fork Eel River 60 Comment
  UC1197994  Rhamnus californica Joseph P. Tracy 1934-7-9 13357 Humboldt Dobbyn Creek 152 Comment
  POM257951  Rhamnus purshiana H. E. Parks, S. T. Parks 1937-06 24018 Humboldt Spruce Cove, Trinidad. Comment
  RSA2933  Rhamnus purshiana Carl B. Wolf 1931-8-30 2373 Humboldt E side of Eureka on P st, on block N of Henderson Street. 30 Comment
  UC165824  Rhamnus purshiana Joseph P. Tracy 1908-6 2848 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC592944  Rhamnus purshiana Carl B. Wolf 1931-8-30 Humboldt e side Eureka (on P Street, 1 block n of Henderson Street) 30 Comment
  UC668149  Rhamnus purshiana Joseph P. Tracy 1933-6-7 12525 Humboldt Bridgeville 198 Comment
  UC902199  Rhamnus purshiana Joseph P. Tracy 1948-8-22 18101 Humboldt 5 mi e Carlotta (flat by old Strong's District School House) 60 Comment
  HSC27016  Rhododendron columbianum Brad Klipfel 1973-8-9 268 Humboldt Big Lagoon County Park Comment
  UC1197792  Rhododendron occidentale Joseph P. Tracy 1921-6-19 5837 Humboldt along road between Three Creeks and mouth of Willow Creek (above Koby's); Northern Coast Ranges 609 Comment
  CAS-BOT-BC200381  Rhododendron occidentale var. paludosum G. A. Coleman 1901-7-20 s.n. Humboldt Near Arcata Comment
  HSC27891  Rhododendron occidentale var. paludosum Clifton Raymond Chesbrough 1973-6-19 68 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC47966  Rhododendron occidentale var. paludosum Brad Klipfel 1974-9-17 582 Humboldt Horse Mountain Comment
  HSC69697  Rhododendron occidentale var. paludosum R. Kalal 1980-6-8 16 Humboldt Azalea State Reserve 52 Comment
  RSA0062952  Rhododendron occidentale var. paludosum C. B. Wolf 1934-7-2 5905 Humboldt 4.5 miles from Snow Camp on road to Bald Mt (Mtns E of Korbel). 1067 Comment
  HSC102638  Ribes binominatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1622 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UCSB24357  Ribes binominatum Tracy, Joseph 1933-7-11 Humboldt Grouse Mountain 1524 Comment
  HSC103240  Ribes bracteosum Jade Paget-Seekins 2010-4-18 10 Humboldt Near the bottom of Bald Hills Road, on the edge of the parking lot for Redwood Creek trailhead. 19 Comment
  UC303170  Ribes bracteosum Joseph P. Tracy 1923-8-19 6535 Humboldt at crossing Kneeland Road (Lawrence Creek); Northern Coast Ranges 609 Comment
  RSA0025006  Ribes divaricatum Lyman Benson 1929-7-19 1875 Humboldt Mouth of Matole [Mattole] River. Comment
  CAS-BOT-BC108909  Ribes divaricatum var. pubiflorum Doris K. Kildale 1926-3-25 1619 Humboldt Liscom Hill. Lower Mad River. 30 Comment
  CAS-BOT-BC108910  Ribes divaricatum var. pubiflorum Doris K. Kildale 1927-6-28 3607 Humboldt Lower Mad River near Covered Bridge on Redwood Highway. Comment
  SEINET200855 Image available Ribes inerme J. P. Tracy 1939-5-6 16281 Humboldt Lack Pond Trinity River Valley opposoite mouth of Willow Creek 152 Comment
  SBBG26907  Ribes laxiflorum H. E. and S. T. Parks 1937-6-4 24004 Humboldt Prairie Crk at Valley Green Comment
  HSC103194  Ribes lobbii Jade Paget-Seekins 2010-7-5 35 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  RSA0021134  Ribes lobbii Lyman Benson 1928-7-12 503 Humboldt Weott Ranger Station. Seaward North Coast Range, South Fork Eel River. 61 Comment
  RSA0021640  Ribes malvaceum E. K. Balls, P. C. Everett 1953-10-11 18627 Humboldt S. boundary Eel River Lodge, 4.3 mi. N of Richardson s Grove, Highway 101. 152 Comment
  HSC57640  Ribes marshallii G. L. Clifton, Griswold 1979-7-25 10804 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC206040  Ribes menziesii Joseph P. Tracy 1948-3-6 17954 Humboldt Trinidad 60 Comment
  RSA0021768  Ribes menziesii Joseph P. Tracy 1948-3-6 17953 Humboldt Trinidad. 61 Comment
  HSC103114  Ribes nevadense M. Mesler, Jen Kalt 2010-8-6 839 Humboldt Trail to Trinity Summit from Water Dog Lakes (6E08, Horse Ridge National Recreation Trail) 1833 Comment
  UC1563693  Ribes roezlii Barbara Ertter with Thomas J. Delendick 1987-5-16 6938 Humboldt ca. 3 mi e Berry Summit (on Hwy 299, on s side of road above Willow Cr., ca. 20 air mi e of Arcata) 800 Comment
  POM160297  Ribes roezlii var. amictum Joseph P. Tracy 1923-3-17 6159 Humboldt Garberville. 122 Comment
  UC1198949  Ribes roezlii var. amictum Joseph P. Tracy 1922-4-2 5985 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 60 Comment
  UC902114  Ribes roezlii var. cruentum Joseph P. Tracy 1944-7-3 17481 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA0024587  Ribes roezlii var. cruentum Lyman Benson 1929-7-19 1872 Humboldt Ridge between Bull Creek and Matole [Mattole] River. Comment
  HSC40117  Ribes sanguineum Dan O'Brien 1962-5-19 Humboldt 4 1/2 mi. E on Fickle Hill Rd. Comment
  HSC103214  Ribes sanguineum var. glutinosum Jade Paget-Seekins 2010-3-27 8 Humboldt Elkhead (just north of Trinidad on Stagecoach Road). 40 Comment
  HSC34637  Ribes sanguineum var. glutinosum Robert M. Specht 1975-4-9 121 Humboldt 2.5 mi. N of Trinidad on Patricks Point Dr., W side 61 Comment
  UC1215537  Ribes sanguineum var. glutinosum D. E. Anderson 1962-1-12 1907 Humboldt along road to Lanphere Ranch Comment
  UCD102493  Ribes sanguineum var. glutinosum Linda M. Barker 1976-3-11 1323 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC96223  Ribes viscosissimum Eric Schori, Kazuyuki Ishimaru 2005-6-15 10 Humboldt 17 mi. S of Hwy. 299, S bank of roadside 1575 Comment
  JEPS79969 Image available Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  SEINET200854 Image available Ribes viscosissimum J. P. Tracy 1932-7-12 10466 Humboldt Klamath Mountains Trinity Summit rdiges east of Corral Prairie 1829 Comment
  UC492213  Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  RSA168871  Rigiopappus leptocladus Joseph P. Tracy 1950-7-6 18996 Humboldt Two miles south of Burr Valley on the Albee Road. 1159 Comment
  SD129723  Romanzoffia californica Barbara Ertter, Thomas J. Delendick 1987-5-16 6937 Humboldt 3 mi E of Berry Summit on Hwy 299, ca 20 airmiles E of Arcata; base of large volcanic roack on S side of road above Willow Creek 800 Comment
  HSC100500  Romanzoffia sitchensis Carl C. Marshall Apr 1886 196 Humboldt Damp rocks, Jacoby Creek. Comment
  UC14348  Rorippa curvisiliqua W. C. Blasdale 1896-6-8 Humboldt Graham's Comment
  UC161585  Rorippa curvisiliqua Joseph P. Tracy 1909-6-13 2992 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  UC1199034  Rosa Joseph P. Tracy 1949-8-7 18438 1/2 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC492163  Rosa Joseph P. Tracy 1930-7-23 9138 Humboldt Horse Mountain Northern Coast Ranges (along streamlet) 1524 Comment
  CAS-BOT-BC146492  Rosa gymnocarpa L. B. Kildale 1930-9-9 10402 Humboldt Bald Mountain 914 Comment
  CAS-BOT-BC146494  Rosa gymnocarpa Doris K. Kildale 1926-9-9 2684 Humboldt Little Van Duzen River, on Bridgeville - Weaverville road 640 Comment
  CAS-BOT-BC146498  Rosa gymnocarpa Ira L. Wiggins 1930-7-22 4695 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  HSC49926  Rosa gymnocarpa Maralyn O'Meara 1974-7-11 540 Humboldt Kneeland; Barry Ridge Comment
  HSC99263  Rosa gymnocarpa C. B. Wolf 1927-8-30 1259 Humboldt 3 mi. S of Thorn along old coast road Comment
  HSC99305  Rosa gymnocarpa C. B. Wolf 1927-8-30 1232 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  HSC98692  Rosa gymnocarpa var. serpentina Cara Witte 2008-6-15 751 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1 mile north of intersection with 6N36A. 1428 Comment
  CAS-BOT-BC146842  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  UC667044  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-21 14993 Humboldt Iaqua 609 Comment
  SEINET11912081  Rosa pinetorum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -312 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Road 150 Comment
  HSC99508  Rosa pisocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 170 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
  UC667035  Rosa pisocarpa Joseph P. Tracy 1933-8-30 13020 Humboldt Grouse Mt. 1432 Comment
  UCR275123  Rubus armeniacus Charity A. Hartshorn 2016-4-24 15 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  RSA89563  Rubus leucodermis Philip A. Munz 1954-7-23 19862 Humboldt About 6 miles E of Dinsmore's. 762 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
  HSC97599  Rubus parviflorus Steven 2004-4-26 28 Humboldt From Old Arcata Rd. go E on Jacoby Creek Rd. Comment
  JEPS47713  Rubus parviflorus Mrs. George Parrish 1930-5-21 Humboldt Trinidad Comment
  UC535747  Rubus parviflorus Eleanor Armstrong 1934-7-3 1166 Humboldt Richardson Grove 121 Comment
  HSC95739  Rubus spectabilis Kevin Thomas 2004-3-18 3 Humboldt Near Clam Beach exit of Hwy. 101 N, along old Hwy. 101, at end of Little River Rd. Comment
  RSA245291  Rubus spectabilis J. D. Ackerman, A. M. Montalvo 1973-3-27 41 Humboldt 1.5 miles N of Manila Comment
  CAS-BOT-BC156578  Rubus ulmifolius Joseph P. Tracy 1940-10-17 16762 Humboldt South Fork Station (near Dyerville) 48 Comment
  CAS-BOT-BC158792  Rubus ursinus Joseph P. Tracy 1946-8-25 17637 Humboldt Field's Landing, 2 miles above town. 6 Comment
  UCD17930  Rubus ursinus H. Olmo; T. S. Mallah 1953-4-3 53- 59 A Humboldt California. Humboldt County: Jordan Street in Rohnerville. In city limits, 0.5 blocks west of the north side of the Richfield filling station. Comment
  HSC76413  Rudbeckia californica Michael Ericksen 1981-8-21 1082 Humboldt Near Dan East Cabin 1609 Comment
  HSC55036  Rumex acetosella Gilbert Muth 1979-7-31 11488 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  RSA239769  Rumex acetosella Larry E. DeBuhr 1973-4-23 997 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  HSC90648  Rumex crispus Gail Newton 1982-6-10 3611 Humboldt Elk River Wildlife Area, Eureka Comment
  SEINET11946618  Rumex obtusifolius C. S. Kaut 2000-1 6 Humboldt Trinidad Comment
  UC1070542  Rumex occidentalis H. L. Person 1932-7-16 Humboldt hwy n of Trinidad; Rock Point Quad. Comment
Read comments
Aug 3 2007
  CAS-BOT-BC109294  Rumex paucifolius R. K. Gierisch; D. H. Esplin 1969-7-1 3538 Humboldt Six Rivers. Grouse Mountain. 1584 Comment
  CAS-BOT-BC434097  Rumex transitorius Carl B. Wolf 1927-8-28 1182 Humboldt Salt Marsh, Eureka Bay, on the road to Arcata Comment
  UCD101474  Rumex transitorius Malcolm A. Nobs; S. Galen Smith 1958-8-9 1237 Humboldt Southern end of town of Blue Lake on Mad River. Comment
  RSA249519  Ruppia maritima Robert F. Thorne, Percy C. Everett 1965-8-7 35208 Humboldt Samoa Peninsula. 0 Comment
  UC1100022  Ruppia maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1182 Humboldt ca 4 mi s Eureka (on Highway 101, near mouth of Elk River) Comment
  UC1103533  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1901-1-1 983 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC32142  Sagina saginoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5609 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC162362  Salicornia virginica Joseph P. Tracy 1911-10-22 3550 Humboldt Eureka Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC129885  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC103819  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01245 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  HSC99699  Salix exigua Glenn W. K. Shelton 2010-7-10 11 Humboldt Van Duzen River along State Rte. 36, 2 mi. W of Grizzly Creek Redwoods State Park, across from mile marker 15.00 91 Comment
  POM220112  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC481312  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 975 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  CAS-BOT-BC104112  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01336 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC106857  Salix hookeriana Harold E. Parks 1931-3-24 0915 Humboldt Trinidad 90 Comment
  CAS-BOT-BC107707  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC107725  Salix hookeriana C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC19966  Salix hookeriana J. P. Tracy, H. E. Parks Apr 1923 7923 Humboldt Little River Lagoon Comment
  HSC19969  Salix hookeriana H. E. Parks Sep 1931 1057 Humboldt Trinidad 76 Comment
  JEPS12912  Salix hookeriana Joseph P. Tracy 1927-4-23 7923 Humboldt mouth of Little River (edge of sand dunes); Northern Coast Ranges 6 Comment
  JEPS13091  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Fortuna; bank of Eel River 15 Comment
  LA208754  Salix hookeriana Harold E. Parks; 1931-5-28 1000 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  LA208758  Salix hookeriana Harold E. Parks; August 1931 1053 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM161065  Salix hookeriana Joseph P. Tracy 1925-4-5 6952 Humboldt Near Laren Frost place on Kneeland Road. near Kneeland Prairie. 610 Comment
  RSA342501  Salix hookeriana Robert F. Thorne, Percy C. Everett 1965-8-7 35230 -c Humboldt Big Lagoon. 3 Comment
  SD937  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC1196546  Salix hookeriana Joseph P. Tracy 1926-3-14 7390 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC1196679  Salix hookeriana Joseph P. Tracy 1925-2-1 6929 Humboldt slope of bluff near Salmon Creek Corners; Northern Coast Region, around Humboldt Bay, Table Bluff 60 Comment
  UC1196681  Salix hookeriana Joseph P. Tracy 1919-3-30 5123 Humboldt Jacoby Creek Northern Coast Ranges, around Humboldt Bay (near the quarry) 91 Comment
  UC275526  Salix hookeriana Joseph P. Tracy 1924-9-21 6884 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC490465  Salix hookeriana Joseph P. Tracy 1932-9-10 10767 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC504061  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 8 Humboldt Samoa Comment
  SD1012  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Myers, South Fork of Eel River Comment
  UC1173603  Salix laevigata Joseph P. Tracy 1935-5-25 13886 Humboldt Dobbyn Creek 152 Comment
  HSC19978  Salix lasiandra J. W. Johnson 1962-3-7 1171 Humboldt Next to the barn of the Lanphere Farm, Samoa Peninsula Comment
  RSA0030805  Salix lasiandra H. E. Parks, Joseph P. Tracy 1931-5-17 0966 Humboldt Willow Creek at Trinity River. 150 Comment
  UC518901  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 2 Humboldt around Eureka Eureka Comment
  UC518902  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 1 Humboldt around Eureka Eureka Comment
  UC519383  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1933-5-14 12179 Humboldt at Willow Creek bridge Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC125226  Salix lasiandra var. lasiandra Jim Davis 1933-4-25 3 Humboldt Around Eureka Comment
  CAS-BOT-BC128190  Salix lasiandra var. lasiandra Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC107616  Salix lasiolepis Harold E. Parks 1931-9-26 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  CAS-BOT-BC107620  Salix lasiolepis Doris K. Kildale 1929-2-28 6952 Humboldt Samoa Peninsula Comment
  HSC20005  Salix lasiolepis J. P. Tracy 1932-8-27 10753 Humboldt Blue Slide, Van Duzen River 91 Comment
  JEPS12973  Salix lasiolepis Joseph P. Tracy 1932-4-24 9803 Humboldt between Miranda and Redway (S. Fork Eel River); North Coast Ranges 91 Comment
  POM160285  Salix lasiolepis Joseph P. Tracy 1926-2-28 7373 Humboldt Trinity River Valley, near the S Fork. 183 Comment
  UC275522  Salix lasiolepis Joseph P. Tracy 1924-2-24 6604 Humboldt on S. Fork Eel R. McKee's Mill; Northern Coast Ranges, S. Fork Eel R., McKee's Mill 60 Comment
  UC469407  Salix lasiolepis Joseph P. Tracy 1927-3-27 7868 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC481338  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC490548  Salix lasiolepis Joseph P. Tracy 1932-4-24 9805 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC506384  Salix lasiolepis Joseph P. Tracy 1933-4-2 10961 Humboldt on Trinity Hwy e Redwood Creek; Northern Coast Ranges, Berry's Mt. 762 Comment
  UC511984  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1249 Humboldt in ... floodplain of Eel River at Fernbridge; Eel R., Fernbridge Comment
  UC512043  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1318 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC519331  Salix lasiolepis Joseph P. Tracy 1933-10-8 13085 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC519332  Salix lasiolepis Joseph P. Tracy 1933-10-15 13094 Humboldt near Miranda South Fork of Eel River 121 Comment
  UC519336  Salix lasiolepis Joseph P. Tracy 1933-5-20 12264 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC519339  Salix lasiolepis Joseph P. Tracy 1933-5-14 12177 Humboldt Willow Creek Trinity River Valley (mouth) 152 Comment
  CAS-BOT-BC107404  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-3-28 1678 Humboldt Redwood Creek near Berry's 289 Comment
  CAS-BOT-BC107408  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3145 Humboldt Redwood Creek at Berry's 289 Comment
  POM219689  Salix lucida subsp. lasiandra H. E. Parks 1931-5-14 959 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC125631  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0974 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  LA208880  Salix melanopsis Harold E. Parks; 1931-5-14 956 a Humboldt Van Duzen River above Bridgeville 300.0 Comment
  UC1173599  Salix melanopsis Joseph P. Tracy 1937-7-24 15507 Humboldt Mad R. at mouth of Lindsey Creek Lindsey Creek; Mad R. 15 Comment
  UC481311  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 974 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC519370  Salix melanopsis Joseph P. Tracy 1933-6-9 12531 Humboldt along Eel R. Shively; Northern Coast Ranges, Eel R., Shively 30 Comment
  CAS-BOT-BC129210  Salix piperi Doris K. Kildale 1929-2-28 6951 Humboldt Mad River at Essex Comment
  CAS-BOT-BC129132  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay, near sea level Comment
  CAS-BOT-BC129134  Salix scouleriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1219 Humboldt 1 mile north of Samoa, approximately sea level. Comment
  CAS-BOT-BC129167  Salix scouleriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1228 Humboldt Near the coast, 1 mile north of Samoa, approximately at sea level. Comment
  CAS-BOT-BC129175  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC96596  Salix scouleriana Gordon Leppig 2003-2-22 1814 Humboldt Eureka Slough, NE corner of log pond 3 Comment
  JEPS89298  Salix scouleriana Joseph P. Tracy 1937-3-21 15236 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  POM280933  Salix scouleriana Lyman D. Benson 1929-7-14 1810 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  UC1173630  Salix scouleriana Joseph P. Tracy 1937-3-21 15236 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  UC1196705  Salix scouleriana Joseph P. Tracy 1933-3-26 10945 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC1196711  Salix scouleriana Joseph P. Tracy 1942-6-23 17259 Humboldt near Water-dog Lakes Trinity Summit, Water-dog Lakes 1828 Comment
  UC275521  Salix scouleriana Joseph P. Tracy 1924-7-4 6716 Humboldt at Hungry Hollow Bald Mt.; Northern Coast Ranges 762 Comment
  UC525976  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch) Trinidad Comment
  POM182025  Salix sessilifolia Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River. Alton to Fortuna. 15 Comment
  CAS-BOT-BC128954  Salix sitchensis Kenneth Clark 1980-3-24 546 Humboldt On alluvial terrace of Dead Man's Gulch - Shelter Cove 15 Comment
  CAS-BOT-BC128958  Salix sitchensis John H. Thomas 1966-3-19 11483 Humboldt Near Westhaven Drive and highway 101, Trinidad 60 Comment
  CAS-BOT-BC128962  Salix sitchensis W. J. Ferlatte 1967-6-13 1116 Humboldt Coastal strand, dunes, Samoa Peninsula 3 Comment
  CAS-BOT-BC128994  Salix sitchensis Joseph P. Tracy 1934-3-25 13168 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC128998  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  HSC96608  Salix sitchensis Gordon Leppig 2005-4-8 2212 Humboldt Eureka, edge of PALCO Marsh at W end of W Hawthorne St. 3 Comment
  UC176185  Salix sitchensis Joseph P. Tracy 1913-3-9 4013 Humboldt Van Duzen R. near Hydesville; Northern Coast Region, Van Duzen R. 60 Comment
  UC481394  Salix sitchensis Harold E. Parks 1931-3-24 913 Humboldt Eel R. Fortuna; Eel R. 10 Comment
  UC492341  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC492342  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  CAS-BOT-BC235016  Sambucus Volney Rattan 1878-1-1 s.n. Humboldt 3 mi. E Eureka Comment
  SBBG25338  Sambucus nigra subsp. caerulea D. G. Forbes 1966-4-4 66 -432 Humboldt 1 mi N of Fresh Water Lagoon, US Hwy 101 30 Comment
  CAS-BOT-BC235126  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt 1 mi. so. of Trinidad 91 Comment
  HSC3992  Sambucus racemosa var. racemosa D. K. Smith 1968-3-3 9 Humboldt On West End Rd., ca. 3 mi. from Hwy. 299 Comment
  OBI19608  Sambucus racemosa var. racemosa Joseph P. Tracy 1947-8-24 17912 Humboldt East of Box cyn 1676 Comment
  UC168999  Sambucus racemosa var. racemosa Joseph P. Tracy 1910-4-17 3116 Humboldt near Forks of Elk River; Northern Coast Region, region about Humboldt Bay 0 Comment
  CAS-BOT-BC157200  Sanguisorba officinalis L. B. Kildale 1930-7-11 10208 Humboldt Snow Camp head of Redwood Creek Comment
  HSC21610  Sanicula arctopoides S. J. Hawks 1965-3-12 1 Humboldt W of Eureka Airport Comment
  SEINET12119553  Sanicula crassicaulis J. P. Tracy 1950-1 19023 Humboldt Sproston's Place, 3 mi S of Burr Valley 1067 Comment
  JEPS973  Sanicula tuberosa Joseph P. Tracy 1927-6-12 8156 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1219 Comment
  CDA20173  Sanicula tuberosa P. Haggard 2003-6-24 PDR 069700 Humboldt Northwestern California; Grouse Mountain. 0 Comment
  UC1197082  Sanicula tuberosa Joseph P. Tracy 1908-6 2715 Humboldt Northern Coast Ranges, at foot of Buck Mt., on Van Duzen River Van Duzen River; Northern Coast Ranges, Buck Mt., Van Duzen River 762 Comment
  POM232030  Satureja douglasii I. L. Wiggins 1930-7-11 4681 Humboldt Near Samoa. Comment
  UC666815  Saxifraga aprica Joseph P. Tracy 1935-7-24 14188 Humboldt near Ranger Station (Trinity Summit); Trinity Summit 1828 Comment
  UC902010  Saxifraga marshallii Joseph P. Tracy 1948-5-15 17978 Humboldt Willow Creek Canyon, along Trinity Highway at the East Fork Willow Creek Canyon 457 Comment
  SEINET3991728  Schoenolirion Unknown 1926-6-20 Humboldt Horse Mtn. Comment
  UCD19970  Scoliopus bigelovii C. H. Lamoureux; R. Gankin 1956-3-17 1043 Humboldt South boundary of Jenson Cove, between Meyers and Miranda on Hwy 101. Comment
  JEPS32499  Scrophularia californica subsp. californica Peter H. Raven 1963-5-15 18376 Humboldt ca 1.5 mi s Trinidad (Luffenholz Beach) Comment
  UC1586911  Scutellaria antirrhinoides Juha Pykala and D. H. Norris 1987-5-20 794 Humboldt along Bull Creek Road from Panter Gap to 4 mi s of Panther Gap 243 Comment
  HSC40873  Scutellaria californica Thomas W. Nelson 1976-7-9 3010 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  RSA34313  Scutellaria californica L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  HSC14401  Scutellaria tuberosa D. E. Anderson 1965-5-8 3644 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River 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
  HSC45581  Scutellaria tuberosa Diane L. Reed 1978-5-7 47 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  HSC38769  Secale cereale A. M. Montalvo, J. D. Ackerman 1975-6-10 446 Humboldt 1 mi. N of Samoa Blvd. and turnoff to Samoa Bridge, S of Manila. Along Humboldt Bay. Comment
  HSC65971  Sedum laxum subsp. heckneri Gail Newton 1980-7-24 1783 Humboldt Near Somes Mtn. 1615 Comment
  HSC76351  Sedum laxum subsp. heckneri Teresa Prendusi 1981-7-21 279 Humboldt Near Whiteys Peak 1646 Comment
  HSC79343  Sedum laxum subsp. heckneri D. K. Imper 1983-7-28 Humboldt Six Rivers National Forest, Orleans, off FS 12N20 near Bald Mtn. Comment
  HSC98572  Sedum radiatum Cara Witte 2007-6-14 285 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  HSC98691  Sedum radiatum Cara Witte 2008-7-7 837 Humboldt Horse Mountain Botanical Area. 6N38. 1 mile southeast of Horse Mountain Mine. 1312 Comment
  JEPS48045  Sedum radiatum Joseph P. Tracy 1926-7-5 7726 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  UC1198841  Sedum radiatum Joseph P. Tracy 1927-5-15 8054 Humboldt Supply Creek near Hoopa Valley; Northern Coast Ranges, Supply Creek, nr Hoopa Valley 304 Comment
  HSC76352  Sedum spathulifolium var. spathulifolium Denis Kearns 1981-7-23 380 Humboldt Near Whiteys Peak 732 Comment
  HSC89451  Selaginella oregana P. A. Daly 1986-3-12 85 Humboldt Trinidad Head 61 Comment
  HSC925  Selaginella oregana J. P. Tracy 1933-5-18 12196 Humboldt Mad River, near Blue Lake 15 Comment
  JEPS19067  Selaginella oregana Joseph P. Tracy 1933-11-26 13124 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  OBI79041  Selaginella rupestris Joseph P. Tracy 1920-10-24 5407 Humboldt Near Korbel, in dense shade. 61 Comment
  SEINET10472835  Senecio Mary Susan Taylor 1982-10-24 Taylor 5185 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  HSC48773  Senecio elegans Brad Klipfel 1975-5-22 621 Humboldt Near the city of Eureka airport S of Samoa Comment
  HSC6116  Senecio integerrimus D. E. Anderson 1962-5-1 2195 Humboldt 2 mi. W of Hoopa Comment
  CAS-BOT-BC363808  Senecio integerrimus var. exaltatus Doris K. Kildale 1926-4-11 1763 Humboldt McLellan Mountain 822 Comment
  CAS-BOT-BC364020  Senecio integerrimus var. major Doris K. Kildale 1928-5-27 5957 Humboldt Kneeland Prairie 853 Comment
  HSC6121  Senecio integerrimus var. major D. E. Anderson 1965-5-22 3727 Humboldt Hunt Ranch, 3-4 mi. N of Bridgeville Comment
  JEPS37229  Senecio integerrimus var. major W. L. Jepson 1902-7-16 2048 Humboldt Trinity Summit 2133 Comment
  JEPS37460  Senecio minimus W. L. Jepson 1932-7-24 16379 Humboldt near Camp Grant; Eel River Comment
  UC1223019  Senecio minimus Joseph P. Tracy 1941-8-17 16991 Humboldt where logging of Douglas Fir is in progress, near HIgh Prairie; Bald Mountain Comment
  UC249833  Senecio triangularis Joseph P. Tracy 1924-7-4 6702 Humboldt Snow Camp , Snow Camp (Northern Coast Ranges) 1371 Comment
  HSC49960  Sequoia sempervirens Maralyn O'Meara 1973-2-9 121 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  POM302258  Sequoia sempervirens Robert Benson 1949-9-4 s.n. Humboldt 10 miles north of Garberville, South Fork of Eel River, North Coast Ranges, Eel River drainage area 122 Comment
  RSA175208  Sequoia sempervirens Robert F. Thorne 1957-9-2 18996 Humboldt Burlington State Park, just S of Weott. Comment
  UC34651  Sericocarpus oregonensis subsp. oregonensis Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pon Comment
  SEINET11802379  Sericocarpus rigidus J. P. Tracy 1950-1 19378 Humboldt about 3 mi SW of Orleans Comment
  UCD92602  Setaria parviflora Haggard 1997-12-12 s.n. Humboldt east of Arcata on North Bank Rd. Above Mad River immediately east of Azalea reserve. Comment
  UC1222776  Sherardia arvensis Joseph P. Tracy 1950-6-18 18854 Humboldt on top Cape Ridge Comment
  HSC26836  Sherardia arvensis Thomas W. Nelson 1970-12-5 320 Humboldt Near Azalea Park Reserve, McKinelyville Comment
  UC170180  Sidalcea asprella subsp. nana Harley P. Chandler June, 1901 1466 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC18874  Sidalcea diploscypha C. C. Marshall 1888-1 Humboldt Comment
  CAS-BOT-BC205571  Sidalcea malachroides Joseph P. Tracy 1938-6-7 15860 Humboldt Canyon Creek, 5 miles SE of Korbel 152 Comment
  RSA75596  Sidalcea malachroides Albert M. Vollmer, B. Beane 1951-6-11 s.n. Humboldt Yager Creek road, on way to Carlotta Comment
  UC1197964  Sidalcea malachroides Joseph P. Tracy 1937-6-20 15358 Humboldt s Ferndale (Wild Cat Ridge); s of Ferndale, Wild Cat Ridge 457 Comment
  UC153948  Sidalcea malachroides J. P. Tracy 1910-5-22 3141 Humboldt vicinity Eureka; vicinity of Eureka 0 Comment
  UC162918  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1911-7-6 3349 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges, btw Three Creeks and Willow Creek 762 Comment
  JEPS67247  Sidalcea malviflora subsp. patula Milo S. Baker 1923-7-20 38 Humboldt Head of Yager Cr. Comment
  UC902191  Sidalcea malviflora subsp. patula Harold E. Parks May 1949 Humboldt Bear River Ridge 609 Comment
  UC902192  Sidalcea malviflora subsp. patula Joseph P. Tracy 1949-7-7 18331 Humboldt Table Bluff ridge 91 Comment
  CAS-BOT-BC213158  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dow's Prairie 60 Comment
  JEPS67278  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-8-22 15671 Humboldt 2 mi s Field's Landing (at Still Ranch); s of Field's Landing, Still Ranch 6 Comment
  UC668141  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-7-16 15432 Humboldt Dow's Prairie 60 Comment
  UC668142  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-7-16 15432 Humboldt Dow's Prairie 60 Comment
  HSC57901  Sidalcea oregana subsp. spicata Gilbert Muth 1979-7-31 11492 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  RSA95266  Sidalcea oregana subsp. spicata F. W. Peirson 1923-7-11 3778 Humboldt Along road 7 miles north of Arcata. Comment
  POM286441  Silene californica Lyman Benson 1928-7-10 427 Humboldt Fortuna; River: Eel, mouth. 30 Comment
  JEPS23250  Silene campanulata Joseph P. Tracy 1932-7-18 10704 Humboldt head of Brett Hole , head of Brett Hole (Trinity Summit) 1828 Comment
  CAS-BOT-BC174878  Silene campanulata subsp. glandulosa Carl B. Wolf 1927-8-27 1155 Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  JEPS50918  Silene gallica Lincoln Constance 1934-5-24 631 Humboldt lower Look Prairie on e side Bull Creek Region, South Fork Eel River, Look Prairie (Bull Creek Region, South Fork Eel River) 121 Comment
Read comments
Mar 24 2013
  UCD98674  Silene gallica H. E. Parks; S. T. Parks 1937-5-1 5938 Humboldt Trinidad, Spruce Cove. Comment
  HSC68009  Silene gallica J. P. Smith 1970-6-7 3804 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  RSA502370  Silene hookeri D. W. Taylor 1971-5-12 1064 Humboldt At the junction of the Trinity and New Rivers, 305 Comment
  UC161035  Silene scouleri subsp. grandis Joseph P. Tracy Sept. 1904 2141 Humboldt bluff back Bucksport (at Eureka); Northern Coast Region, at Eureka 0 Comment
  CDA39474  Sisyrinchium bellum T. C. Fuller 1958-6-17 1715 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC44756  Sisyrinchium bellum Maralyn O'Meara 1972-6-8 83 Humboldt Along Bald Hills Rd. 16.4 mi. E of junction with Hwy. 101 Comment
  HSC23117  Sisyrinchium californicum Norman Dennis 1965-6-3 142 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  HSC27000  Sisyrinchium californicum Brad Klipfel 1973-8-17 271 Humboldt Big Lagoon Park, N of Trinidad Comment
  RSA46494  Solanum americanum Doris K. Kildale 1926-2-7 1496 Humboldt Big Lagoon. Comment
  UCD126960  Solanum triflorum Luther Jones 1962-8-10 s.n. Humboldt King River Valley, northwest of Orovada. (Nevada). Comment
  UC902078  Solanum umbelliferum Joseph P. Tracy 1949-5-8 18293 Humboldt 5 mi e (of town) Carlotta (by old Strong's District School House) 60 Comment
  SD143524  Solidago canadensis subsp. elongata H. E. Parks 1931-7 1056 Humboldt Trinidad 74 Comment
  CAS-BOT-BC365439  Solidago elongata Doris K. Kildale 1926-6-18 2408 Humboldt Gold Bluffs Comment
  HSC22503  Solidago elongata Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC67892  Solidago elongata J. P. Smith 1973-5-26 6848 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1223177  Solidago elongata Joseph P. Tracy 1949-8-11 18458 Humboldt Snow Camp 1402 Comment
  UC165026  Solidago elongata J. P. Tracy 1900-8-26 923 Humboldt immediate vicinity Eureka 0 Comment
  UC175202  Solidago elongata Joseph P. Tracy 1913-9-9 4397 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  SEINET11382898 Image available Solidago elongata H. E. Parks 1931-1 1056 Humboldt Trinidad, Humboldt County. Comment
  HSC46962  Solidago spathulata J. P. Smith, Thomas W. Nelson 1977-6-30 9219 Humboldt Samoa Peninsula just E of the drag strip. Comment
  RSA0043130  Solidago spathulata Patricia Wilder 1968-8-21 4401 Humboldt Northern coastal arm of Humboldt Bay, ca. two miles southwest of Samoa. Humboldt Bay drainage area. 8 Comment
  SD148219  Solidago spathulata var. spathulata G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7023 Humboldt Samoa Peninsula, 2.6 miles south of California 255 bridge across Humboldt Bay. 14 Comment
  CAS-BOT-BC364968  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC102045  Sorbus scopulina M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 948 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  HSC21344  Sparganium angustifolium Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  UCR32178  Spartina foliosa David J. Keil 1983-7-2 17296 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard [600 G St.] Comment
  CDA35771  Spartina foliosa J. R. Keck Jr. 1987-10-28 PDR# 331439 Humboldt Humboldt Bay tidal zone near Somoa. 0 Comment
  UCD99180  Spergula arvensis James Payne Smith Jr. 1970-6-7 3805 Humboldt 0.6 miles north of Luffenholtz beach along California 1 near Trinidad. Comment
  HSC90259  Spergularia macrotheca Jean Hanson 1980-6-22 86 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. W end of Island. Comment
  CDA18204  Spergularia macrotheca var. macrotheca G. D. Barbe, T. C. Fuller 1974-6-17 1830 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  UC1196395  Spiranthes romanzoffiana J. P. Tracy 1900-8-26 929 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC35344  Spiranthes romanzoffiana A. Montalvo, J. D. Ackerman 1975-8-22 643 Humboldt N of College Cove, Trinidad State Beach Park Comment
  UCLA71584  Stachys ajugoides var. ajugoides Joseph P. Tracy 1939-6-23 16312 Humboldt Park's garden Trinidad 3 Comment
  JEPS63050  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UCLA27599  Stachys ajugoides var. rigida Ynez Whilton Winblad 1941-6-27 Humboldt between Eureka and Orick Comment
  UCLA71147  Stachys ajugoides var. rigida Harold E. and Susan T. Parks 1937-7 24025 Humboldt Spruce Cove Trinidad Comment
  UCLA71165  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  JEPS63031  Stachys ajugoides var. rigida Frank W. Peirson 1926-7-12 7034 Humboldt near bridge over Redwood Creek (Orick) Comment
  UC1222862  Stachys ajugoides var. rigida Joseph P. Tracy 1950-6-8 18761 Humboldt near Petrolia (w slope of hill, leading from the coast toward town, hills between town and Ocean); Domingo Hill Comment
  UC1239725  Stachys ajugoides var. rigida Joseph P. Tracy 1943-7-11 17434 Humboldt Park's garden Trinidad 3 Comment
  HSC14420  Stachys chamissonis C. B. Wolf 1941-7-28 11087 Humboldt Between the redwood Hwy. and Crannell 8 Comment
  UCLA71295  Stachys chamissonis C. Epling Aug 1933 Humboldt Clam beach Comment
  RSA447391  Stachys emersonii Christopher Davidson 1973-5-29 2201 Humboldt Ca. 2 mi S of Carlotta on St. Hwy 36 61 Comment
  HSC81924  Stachys mexicana Thomas W. Nelson, Jane P. Nelson 1979-7-3 4955 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC25930  Stachys mexicana Thomas W. Nelson 1970-10-30 310 Humboldt S of Education Building on HSC campus Comment
  HSC27045  Stachys mexicana Brad Klipfel 1973-8-25 289 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  SBBG6537  Stachys rigida H. and M. Dearing 1939-6-23 3696 Humboldt 12 mi E of Arcata Comment
  SEINET12273953  Stachys rigida var. quercetorum J. P. Tracy 1950-1 18742 Humboldt at crossing of Bear River, near Petrolia, hills between town & Ocean 30 Comment
  POM160267  Stellaria crispa Joseph P. Tracy 1926-6-12 7586 Humboldt Prairie Creek Comment
  HSC4276  Stellaria media D. B. Bader 1963-2-17 32 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  HSC4270  Stellaria media J. L. Baker 1965-3-9 6 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  HSC98400  Stellaria media R. D. Modafferi 1965-4-8 3 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  UC1173636  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC40578  Stipa lemmonii Thomas W. Nelson, Jane P. Nelson 1976-6-22 2870 Humboldt SW facing slope on Goat Hill. 1666 Comment
  HSC98184  Stipa occidentalis var. californica R. D. Rogers 1964-5-15 28 Humboldt Rousseau Ranch, 18 mi. SE of Arcata. Comment
  HSC103294  Streptanthus tortuosus Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3014 Humboldt Six Rivers National Forest; ~ 1.7 mi. south of Berry Summit along Titlow Hill Road.; ~ 1.4 mi. west-northwest of Horse Mtn. Radio Tower. 980 Comment
  HSC73750  Streptanthus tortuosus M. A. Baker 1980-7-15 2942 Humboldt Near Whiting Ridge. 1341 Comment
  UCD116417  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt south of airport, about 5 miles east of Kneeland. Comment
  UC1198798  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1913-6-17 4165 Humboldt near summit Northern Coast Ranges, Buck Mountain 1524 Comment
  UC162648  Streptanthus tortuosus var. orbiculatus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5664 Humboldt Hoopa Mt. Comment
  UC562688  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1935-7-24 14185 Humboldt near ranger station; Trinity Summit 1828 Comment
  HSC57457  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-26 10288 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1103500  Streptopus amplexifolius var. americanus Joseph P. Tracy 1930-7-17 8998 Humboldt McKay Camp; South Fork Mountain 1676 Comment
  HSC48390  Swertia radiata Brad Klipfel 1973-6-10 114 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99624  Symphoricarpos albus var. laevigatus Thomas W. Nelson, James Nelson 1975-9-3 2196 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  JEPS12883  Symphoricarpos albus var. laevigatus Lincoln Constance 1934-6-4 821 Humboldt Look Prairie South Fork Eel River, Bull Creek Region (and Bull Creek road to Dyerville) Comment
  UC1225823  Symphoricarpos mollis Joseph P. Tracy 1948-8-15 18144 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  JEPS40849  Symphyotrichum bracteolatum Joseph P. Tracy 1921-9-4 5954 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley, South Fork of T 152 Comment
  CAS-BOT-BC99005  Symphyotrichum eatonii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC99006  Symphyotrichum eatonii Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  CAS-BOT-BC98926  Symphyotrichum foliaceum var. parryi Joseph P. Tracy 1917-9-1 4836 Humboldt Murphy Meadow, Bald Mountain 1066 Comment
  HSC99571  Symphyotrichum spathulatum var. spathulatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 236 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CAS-BOT-BC99369  Symphyotrichum subspicatum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  UC165029  Symphyotrichum subspicatum J. P. Tracy 1900-9-3 936 Humboldt immediate vicinity of Eureka 0 Comment
  SEINET11071783 Image available Symphytum asperum Johnnie L. Gentry Jr., Earl Jensen 1968-1 2120 Humboldt Approx. 2 miles east of Hwy. jct. US 101 & Tompkins Hill Rd., on Tompkins Hill Road, south of Eureka 30 Comment
  JEPS26262  Synthyris reniformis Joseph P. Tracy 1939-3-19 16205 Humboldt by old Strong's District School House, 5 mi e of town Carlotta 45 Comment
  SEINET13750617  Synthyris reniformis J. P. Tracy 1906-4-15 2408 Humboldt Northern Coast Ranges, Bald Mt. near Korbel. 610 Comment
  HSC12247  Tanacetum bipinnatum S. J. Hawks 1965-5-18 72 Humboldt Clam Beach Comment
  SJSU8450  Tanacetum bipinnatum H. T. Harvey 1977-7-6 611 Humboldt South Spit, Humboldt Bay Comment
  CAS-BOT-BC376731  Tanacetum bipinnatum Peter H. Raven 1962-8-26 18075 Humboldt Dunes just south of Samoa Comment
  HSC6269  Taraxacum officinale R. D. Modafferi 1965-3-14 6 Humboldt 0.6 mi. N of Trinidad on Trinity St. 305 Comment
  HSC55212  Taxus brevifolia Walter Overton 1979-8-1 12351 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  SEINET3876099 Image available Taxus brevifolia M. C. Hartman 1963-3-30 8 Humboldt Highway 299 1 mile E. of Berry Summit.; 0 Comment
  UC667973  Taxus brevifolia Joseph P. Tracy 1936-9-20 15186 Humboldt along Capoe Creek; Humboldt State Redwood Park 91 Comment
  HSC56324  Tellima grandiflora Overton, Butler 1979-8-2 12666 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC99434  Tellima grandiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 83 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  POM117233  Tellima grandiflora Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  RSA120721  Tellima grandiflora S. S. Tillett 1956-7-5 604 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  RSA183511  Tellima grandiflora D. E. Anderson 1965-5-8 3629 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along highway 299. Comment
  UC1196167  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1935-5-25 13825 Humboldt along head of Larrabee Creek Blocksburg 518 Comment
  UC503058  Thelypteris nevadensis Joseph P. Tracy 1932-7-20 10743 Humboldt Trinity Summit; Klamath Mts. 1371 Comment
  UC1129923  Thermopsis gracilis A. E. Wieslander 1931-5-17 197 Humboldt Bald Hills Hoopa Quadrangle Comment
  CAS-BOT-BC81314  Thuja plicata Doris K. Kildale 1927-3-26 s.n. Humboldt Warren Creek Comment
  HSC95903  Thuja plicata Will Ferrand 2001-6-17 2 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  LA31710  Thuja plicata H. E. Parks; 1932-7-25 1139 Humboldt Trinidad, Camp 21, Hammond Lumber Company 152 Comment
  SBBG56418  Thuja plicata M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  SEINET10613416  Thuja plicata Harold E. Parks 1932-7-25 Parks 1139 Humboldt Camp 21, Hammond Lumber Company, Trinidad. Small trees in bogs. Host of Keithia thujina, a fungus new to California. Herbarium of the University of California Comment
  HSC98073  Tiarella trifoliata var. unifoliata Cara Witte 2007-7-12 526 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  UC902074  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1949-8-4 18423 Humboldt Mud Springs Trinity Summit (Trinity Summit); , Mud Springs 1341 Comment
  UCR124075  Tiarella trifoliata var. unifoliata George K. Helmkamp, E. A. Helmkamp 2001-7-8 6971 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  JEPS49714  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-19 82 c Humboldt canyon near Carlotta; canyon near Carlotta Comment
  SD88373  Tiarella trifoliata var. unifoliata Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville Comment
  HSC100653  Tiarella unifoliata Carl C. Marshall Jun 1886 323 Humboldt Trail E of Hoopa. Comment
  HSC62637  Tolmiea diplomenziesii R. D. Zortman 1963-5-12 43 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  UC585612  Torilis arvensis Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch) 304 Comment
  HSC45070  Torilis arvensis R. Sutherland 1978-5-16 2 .16578 Humboldt Redwood Creek 143 Comment
  SEINET11800250  Tracyina rostrata J. P. Tracy 1950-1 18859 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 213 Comment
  JEPS63148  Trichostema laxum Joseph P. Tracy 1926-10-15 7815 Humboldt South Fork of Trinity River, mountain slopes W of mouth 304 Comment
  RSA699238  Trichostema laxum J. R. Bruff 1937-8-17 930 Humboldt Richardson Grove, bed of Eel River. Comment
  UC1239715  Trichostema laxum Joseph P. Tracy 1921-10-9 5968 Humboldt Blue Lake, on gravel bar of Mad River Northern Coast Ranges 30 Comment
  HSC70760  Trientalis latifolia R. York 1980-5-17 523 Humboldt Near Le Perron Peak 792 Comment
  POM118789  Trientalis latifolia Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  RSA183505  Trientalis latifolia D. E. Anderson 1965-5-8 3651 Humboldt 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  UC562555  Trientalis latifolia Joseph P. Tracy 1926-5-22 7509 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  HSC17938  Trientalis latifolia Frances Oldridge 1946-1 Humboldt Freshwater Comment
  UC1103436  Trifolium barbigerum J. P. Tracy 1901-4-24 1037 Humboldt immediate vicinity Eureka 0 Comment
  HSC45120  Trifolium bifidum R. Sutherland 1978-5-27 1 .27578 Humboldt Whitehorn 311 Comment
  UC495643  Trifolium bifidum var. decipiens Joseph P. Tracy 1927-6-18 8186 Humboldt betw Petrolia and the ocean (hills); Northern Coast Ranges 152 Comment
  UC1223328  Trifolium campestre Joseph P. Tracy 1938-6-7 15857 Humboldt 5 mi se Korbel (Canyon Creek) Comment
  UC179920  Trifolium campestre Joseph P. Tracy 1914-7-4 4523 Humboldt Between Korbel and Angels Ranch Northern Coast Ranges 457 Comment
  HSC15111  Trifolium depauperatum Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  UC162856  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1906-6-10 2476 Humboldt Kneeland Prairie Northern Coast Ranges, Eureka 762 Comment
  HSC104458  Trifolium dubium Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 11 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  POM118629  Trifolium dubium Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1542872  Trifolium dubium Harold E. Parks May 1934 4324 Humboldt Spruce Cove Trinidad Comment
  UC303191  Trifolium dubium Joseph P. Tracy 1925-5-17 6971 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD108818  Trifolium dubium Linda M. Barker 1976-5-13 1476 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC45106  Trifolium dubium R. Sutherland 1978-5-16 6 .16578 Humboldt 157 Comment
  HSC71438  Trifolium dubium J. P. Smith 1973-5-26 6836 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC98508  Trifolium eriocephalum subsp. eriocephalum Cara Witte 2007-6-7 225 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  JEPS79999  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-29 8821 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges Comment
  HSC100533  Trifolium filipes Carl C. Marshall May 1886 411 Humboldt Dobbyn's Creek. Comment
  HSC27094  Trifolium fragiferum Thomas W. Nelson 1970-10-31 292 Humboldt N end of the Carson Bridge Comment
  HSC15119  Trifolium fucatum A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek Jct., 200 yards W of Lindsey Creek Comment
  HSC15121  Trifolium fucatum Harvey Doerksen 1962-5-8 11 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  HSC15122  Trifolium fucatum D. B. Bader 1963-4-1 6 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101, along the R.R. tracks Comment
  HSC71067  Trifolium fucatum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3400 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  UC1197033  Trifolium fucatum Joseph P. Tracy 1932-5-10 9963 Humboldt near Petrolia (Mattole River); North Coast Ranges 15 Comment
  SEINET12154196  Trifolium fucatum L. K. Henry 1971-1 s.n. Humboldt Along Rt. 36, 2 mi E of Dinsmore, in Six Rivers Nat'l Forest Comment
  RSA183539  Trifolium fucatum var. fucatum G. Bos 1965-5-15 260 Humboldt 3 miles west of Berry Summit along U. S. 299. 610 Comment
  UC1197196  Trifolium gracilentum Joseph P. Tracy 1901-5-18 1096 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  HSC45169  Trifolium hirtum R. Sutherland 1978-5-13 1 .13578 Humboldt 285 Comment
  HSC58641  Trifolium longipes G. L. Clifton, Griswold 1979-7-31 11637 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC1197210  Trifolium longipes var. hansenii Joseph P. Tracy 1913-6-23 4282 Humboldt near summit of ridge (betw Van Duzen and Mad Rivers, Dinsmore's ranch); Northern Coast Ranges 1066 Comment
  CDA27998  Trifolium microcephalum T. C. Fuller 1958-6-17 1723 Humboldt Petrolia, Lower Mattole. 0 Comment
  HSC15145  Trifolium microcephalum J. W. Johnson 1962-5-13 1355 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  UC1197501  Trifolium obtusiflorum Joseph P. Tracy 1915-6-6 4648 Humboldt along rr track (Eureka); Northern Coast Region 0 Comment
  UC1197499  Trifolium oliganthum Joseph P. Tracy 1906-6-10 2471 Humboldt near Wrangleton (Kneeland Prairie); Northern Coast Ranges 152 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
  CDA4316  Trifolium subterraneum R. Drewry 1967-5-5 Humboldt Shelter Cove. 0 Comment
  UC1197553  Trifolium variegatum var. melananthum Joseph P. Tracy 1930-5-18 8695 Humboldt Roseville golf course Northern Coast Ranges 152 Comment
  UC1223536  Trifolium variegatum var. variegatum Joseph P. Tracy 1935-5-24 13815 Humboldt Lentell Addition Eureka Comment
  SD53239  Trifolium virescens Darley F. Howe 1962-5-22 3308 Humboldt 0.7 mile east of Orick on Bald Mt. Road. 395 Comment
  JEPS4173  Trifolium willdenovii Joseph P. Tracy 1932-5-1 9866 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  JEPS4167  Trifolium willdenovii W. L. Jepson 1902-6 1904 Humboldt Fort Seward Ranch Ridge = Mail Ridge 1219 Comment
  UC1197515  Trifolium willdenovii Joseph P. Tracy 1932-6-26 10278 Humboldt near North Yager Creek (Jaqua); Northern Coast Ranges 609 Comment
  UC1223318  Trifolium willdenovii Joseph P. Tracy 1942-5-16 17358 Humboldt 1 mi ne Garberville (on rd to Harris) 304 Comment
  UC303199  Trifolium willdenovii Joseph P. Tracy 1925-5-17 6967 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC90425  Trifolium wormskioldii Jean Hanson 1980-6-22 94 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. W end of Island. Comment
  POM277677  Trifolium wormskioldii Lyman D. Benson 1928-7-10 438 Humboldt Clam Beach, Trinidad. Hills back of the ocean. 15 Comment
  CAS-BOT-BC451806  Triglochin maritima L. R. Abrams 1918-6-12 7086 Humboldt Eureka Comment
  CAS-BOT-BC520054  Trillium albidum Doris K. Kildale 1930-5-11 9542 Humboldt The Bald Hills Comment
  HSC101809  Trillium albidum Kjirsten A. Wayman 2012-4-6 307 Humboldt Martin's Ferry Road, northwest of Weitchpec, near mile marker 32, east side of road 137 Comment
  HSC28001  Trillium albidum Maralyn O'Meara 1973-6-12 202 Humboldt Runoff from Cold Spring Comment
  UC1222529  Trillium albidum Joseph P. Tracy 1950-4-20 18615 Humboldt 2 mi. w. Dinsmosre's (lower foothills of n.w. slope of Buck Mt.); Buck Mt. 762 Comment
  UC146219  Trillium albidum Joseph P. Tracy 1905-4-2 2155 Humboldt region about Humboldt Bay near Arcata; Northern Coast Region, Humboldt Bay 0 Comment
  CAS-BOT-BC519078  Trillium angustipetalum Doris K. Kildale 1926-3-27 1659 Humboldt Wiregrass Prairie in Bald Hills Comment
  SEINET3991344  Trillium chloropetalum Unknown 1950-4-20 18615 Humboldt Buck Mountain, lower foothills of its N. W. slope, 2 mi W of Dinsmore's 762 Comment
  HSC15681  Trillium kurabayashii R. Spellenberg, D. Sutherland, A. Sylvester 1966-4-28 1383 Humboldt S side of Prairie Creek State Park Comment
  HSC15689  Trillium kurabayashii K. P. St. John 1965-4-24 43 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  HSC28002  Trillium kurabayashii Maralyn O'Meara 1972-5-29 77 Humboldt 18.6 mi. up Bald hills Rd. from junction with Hwy. 101 near Orick 915 Comment
  CHSC2321  Trillium ovatum V. Holt 1933-4-11 Humboldt Comment
  HSC102558  Trillium ovatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1546 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC15693  Trillium ovatum T. O. Preston 1963-4-22 26 Humboldt Comment
  SBBG1084  Trillium ovatum H. and M. Dearing 1933-5-15 269 Humboldt Humboldt County [no specific locality] Comment
  CAS-BOT-BC521315  Trillium rivale Doris K. Kildale; L. B. Kildale 1930-5-24 9551 Humboldt Hoopa Valley 152 Comment
  UC34956  Triodanis biflora Chesnut and Drew 1888-7-9 Humboldt near Campbell's Comment
  JEPS26158  Triphysaria eriantha subsp. eriantha Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3633 Humboldt Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  UC1198035  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1918-5-5 4926 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay 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
  UCD93892  Trisetum canescens Joseph P. Tracy 1901-5-30 1109 Humboldt At Eureka. 0 Comment
  JEPS75418  Trisetum cernuum W. L. Jepson 1932-7-29 16438 Humboldt Weott Comment
  UCD93899  Trisetum cernuum Harley P. Chandler 1901-5-1 1176 Humboldt Humboldt Bay. 30 Comment
  SEINET11682986  Trisetum cernuum K. S. Erdman 1970-1 4814 Humboldt Fern Canyon at mouth of Home Creek, Prairie Creek SP in Redwood National Park Comment
  HSC49994  Triteleia bridgesii M. A. Baker 1979-6-6 773 Humboldt N facing slope adjacent to rd. to Hospital Mtn. Comment
  UC1197712  Triteleia hyacinthina Joseph P. Tracy 1932-6-26 10268 Humboldt Fort Baker Ranch 762 Comment
  HSC3061  Triteleia laxa D. E. Anderson 1962-7-14 2251 Humboldt 2 mi. W of Kneeland Post Office Comment
  RSA254788  Triteleia laxa Thomas W. Nelson, James Nelson 1973-5-28 952 Humboldt McKeown Ranch north of Dinsmore. Comment
  CAS-BOT-BC526352  Triteleia laxa Joseph P. Tracy 1930-7-6 8841 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC526354  Triteleia laxa Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC3050  Triteleia laxa William J. Ferlatte, B. D. Rogers 1966-6-8 2086 Humboldt Forest Glen Campground. Comment
  HSC35965  Triteleia laxa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1949 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  UC52241  Triteleia peduncularis J. P. Tracy 1903-6-12 1920 Humboldt Eureka vicinity 0 Comment
  HSC93497  Typha latifolia Gordon Leppig 1998-6-8 899 Humboldt Arcata Marsh and Wildlife Sanctuary, SW side of pond. 2 Comment
  UC175201  Uropappus lindleyi Joseph P. Tracy 1913-6-25 4349 Humboldt Lower Foothills of Buck Mountain, on its northwest slope. Northern Coast Ranges. 762 Comment
  HSC95731  Urtica dioica subsp. gracilis Steven Lee 2004-4-13 21 Humboldt Arcata Community Forest, along Jolly Giant Creek. Comment
  HSC21678  Urtica dioica subsp. gracilis Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  UC1197773  Vaccinium cespitosum J. P. Tracy 1901-4-7 1007 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC199305  Vaccinium ovatum Doris K. Kildale 1927-5-7 3115 Humboldt Elk Ridge Comment
  HSC31334  Vaccinium ovatum Larry E. DeBuhr, G. D. Wallace 1972-5-22 615 Humboldt Del Norte Coast Redwood State Park, Damnation Trail Comment
  CAS-BOT-BC199414  Vaccinium parvifolium Volney Rattan 1879-6-1 s.n. Humboldt Unspecified Comment
  HSC91894  Vaccinium parvifolium E. Mackey 1986-10-24 Humboldt Patricks Point State Park Comment
  CAS-BOT-BC199418  Vaccinium parvifolium H. E. McMinn 1922-6-23 263 Humboldt Near Van Dusen [Duzen] River Comment
  JEPS52977  Vancouveria W. L. Jepson 1932-8-9 16541 Humboldt Deerfoot Glade Bull Creek; , Deerfoot Glade Comment
  CAS-BOT-BC76052  Vancouveria hexandra W. R. Dudley 1899-6-1 s.n. Humboldt Unspecified. Comment
  HSC3377  Vancouveria hexandra E. W. Styskel 1963-5-16 23 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 290 Comment
  HSC69623  Vancouveria hexandra R. Kalal 1979-5-20 68 Humboldt Fickle Hill Rd., 1 mi. E of 11th St. 189 Comment
  CAS-BOT-BC76095  Vancouveria planipetala Alice Eastwood; John Thomas Howell 1937-6-22 4720 Humboldt Near Harris. Comment
  SEINET10932381  Vancouveria planipetala Mary Merello 1993-6-19 Merello 658 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  RSA24190  Vancouveria planipetala C. B. Wolf 1941-3-2 9984 Humboldt N. Coast Range. Bull Creek-Petrolia Road. 12 mi. W. of Redwood Highway. 457 Comment
  UC556336  Vancouveria planipetala Mrs. Emanuel Fritz 1935-1 Humboldt along Redwood Highway between Miranda and Dyerville Comment
  HSC102701  Ventenata dubia J. P. Smith 2013-6-16 13729 Humboldt Along State Route 36, just west of the 33.68 highway sign (milepost). 758 Comment
  HSC65843  Veratrum insolitum Gail Newton 1980-6-16 184 Humboldt Near Onion Mtn. 1280 Comment
  RSA698160  Verbascum thapsus J. R. Bruff 1937-8-17 944 Humboldt Richardson Grove. Comment
  HSC21173  Verbascum thapsus H. D. Sumner 1959-7-13 Humboldt Redwood Creek near Hwy. 299 305 Comment
  HSC12549  Verbena menthifolia C. Kline 1970-10-28 47 Humboldt North Bank Rd., 3 mi. W of Blue Lake, Mad River gravel bottoms Comment
  HSC98564  Veronica arvensis Cara Witte 2008-6-13 723 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  CDA6483  Veronica filiformis F. Wetherbee 1960-7-2 Humboldt Eureka. 0 Comment
  HSC100687  Veronica peregrina Carl C. Marshall Jun 1887 203 Humboldt Humboldt County. Comment
  UC1222425  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1925-5-30 7016 Humboldt 3 mi w of Bridgeville (Kemp's Ranch); Kemp's Ranch 198 Comment
  HSC21217  Veronica persica D. K. Smith 1968-1-16 1 Humboldt 0.5 mi. S of Blue Lake on West End Rd. Comment
  HSC37846  Veronica persica Thomas W. Nelson, James Nelson 1976-3-11 2265 Humboldt Beside Eel River just N of terminus of Singley Rd. Comment
  HSC99632  Veronica serpyllifolia subsp. humifusa G. L. Clifton, Terry Griswold 1979-7-25 10866 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC56370  Vicia americana var. americana Griswold, Butler 1979-7-11 6391 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC98614  Vicia americana var. americana Cara Witte 2008-7-2 803 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC1537113  Vicia americana var. americana Gordon H. True Jr. 1936-5-11 463 Humboldt 12 mi w Miranda (e slope of Elk Ridge); Elk Ridge 457 Comment
  HSC100542  Vicia americana var. truncata Carl C. Marshall Apr 1884 47 Humboldt Thickets and roadsides throughout Humboldt Bay. Comment
  JEPS66180  Vicia gigantea W. L. Jepson 1902-8-4 13640 Humboldt near Petrolia; Humboldt Coast Comment
  CHSC68556  Vicia hirsuta Vernon H. Oswald 1997-4-29 8352 Humboldt Humboldt Bay NWR, Hookton Slough Trail on the levee along the south side of Hookton Slough. 0 Comment
  UC162859  Vicia hirsuta J. P. Tracy 1906-6-29 2513 Humboldt immediate vicinity Eureka 0 Comment
  SEINET12157875  Vicia hirsuta J. P. Tracy 1944-1 17474 Humboldt slowly spreading in Eureka (same place as # 17428) Comment
  HSC48780  Vicia sativa subsp. nigra Brad Klipfel 1974-5-11 337 Humboldt SW side of Big Lagoon Comment
  HSC15278  Vicia sativa subsp. sativa Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC71614  Vicia tetrasperma J. P. Smith 1973-5-26 6832 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC49921  Vinca major Maralyn O'Meara 1973-2-9 126 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  HSC100695  Viola canina Carl C. Marshall Apr 1886 169 Humboldt Everywhere. Comment
  HSC45582  Viola cuneata Diane L. Reed 1978-5-27 124 Humboldt Horse Mtn., Titlow Hill Rd., 3.4 mi. from junction with S.R. 299 Comment
  HSC41248  Viola glabella Brad Klipfel 1974-5-27 395 Humboldt Near Horse Mtn. Comment
  HSC97583  Viola glabella Cara Witte 2007-5-23 100 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  UC1761598  Viola glabella W. K. Parks Jul 1933 6238 Humboldt South Fork Mt. Comment
  HSC44426  Viola hallii Brad Klipfel 1975-5-30 646 Humboldt Horse Mtn. Comment
  RSA46691  Viola hallii Doris K. Kildale 1938-6-5 15398 Humboldt Horse Mountain Comment
  RSA12564  Viola macloskeyi Carl B. Wolf 1934-7-2 5875 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  HSC21827  Viola ocellata J. F. Knezevich 1967-6-1 171 Humboldt 5 mi. E of Willow Creek on Hwy. 299 Comment
  HSC97518  Viola ocellata Frances Reuss Harmon 2001-3-31 14 Humboldt Six Rivers National Forest: Gray Falls Picnic Area, along dirt road heading due S ca. 150 ft past the picnic area loop Comment
  UC164807  Viola palustris Joseph P. Tracy 1904-7-31 2126 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  RSA77739  Viola purpurea subsp. purpurea Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie. 762 Comment
  JEPS50235  Viola sempervirens Lincoln Constance 1934-5-31 760 Humboldt Bull Creek Flat along Bull Creek (from w boundary of Park to Grasshopper Peak (Squaw Creek)road, n side of creek); Bull Creek Region, South Fork Eel River Comment
  UC1197980  Vitis californica Joseph P. Tracy 1933-7-3 12630 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC668146  Vitis californica Joseph P. Tracy 1933-9-9 13077 Humboldt Garberville South Fork of Eel River 152 Comment
  CAS-BOT-BC198760  Vulpia bromoides Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  HSC69872  Vulpia bromoides Thomas W. Nelson 1978-5-29 4094 Humboldt On McKeown Ranch N of Dinsmore. 762 Comment
  UCD93467  Vulpia bromoides Harley P. Chandler 1901-5-1 1175 b Humboldt Humboldt County. 30 Comment
  SEINET7295259 Image available Vulpia microstachys var. pauciflora Joseph P. Tracy 1942-1 17224 Humboldt Trinity Summit; Ridge top one mile west of Mud Springs 1158 Comment
  UC1103717  Vulpia microstachys var. pauciflora Joseph P. Tracy 1913-6-19 4201 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC184733  Vulpia myuros subsp. megalura Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet ranch Comment
  UC1145203  Vulpia myuros var. hirsuta Joseph P. Tracy 1941-3-26 16836 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC38479  Vulpia myuros var. hirsuta Harley P. Chandler May 1901 1120 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  HSC20447  Whipplea modesta J. W. Johnson 1962-4-22 1280 Humboldt Willow Creek along the Hwy. on the canyon slope W of town Comment
  HSC42304  Whipplea modesta Tom Duebendorfer 1977-5-15 50 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC74652  Whipplea modesta M. A. Baker 1980-5-17 1225 Humboldt Near Le Perron Peak 792 Comment
  JEPS49626  Whipplea modesta W. L. Jepson 1932-7-26 16400 Humboldt Bull Creek Comment
  HSC100451  Wyethia angustifolia Carl C. Marshall Jul 1886 261 Humboldt Coast Range. Comment
  UC1096426  Wyethia longicaulis W. L. Colwell 1957-8-6 52 Humboldt 11 mi northeast of Bridgeville near Six Rivers National Forest Comment
  RSA441183  Xanthium strumarium M. B. Dunkle 1936-8-22 4856 Humboldt Williams Grove, Eel River. 213 Comment
  UC13722  Xerophyllum tenax Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  CAS-BOT-BC527081  Xerophyllum tenax Doris K. Kildale 1925-9-5 1271 Humboldt Wire Grass Prairie, mid way on road from Orick to Martin's Ferry Comment
  CAS-BOT-BC532737  Zigadenus micranthus Doris K. Kildale 1926-3-23 1606 Humboldt Alton Hill Comment
  UC146216  Zigadenus micranthus var. micranthus Joseph P. Tracy 1908-6 2779 Humboldt nw slope Buck Mountain; Northern Coast Ranges, nw slope Buck Mountain 609 Comment



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