Search Results — 2000 specimen records retrieved (1347 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC72979  Abies concolor Gail Newton 1980-7-14 1514 Humboldt Near Deadman Ridge 1097 Comment
  CAS-BOT-BC78056  Abies grandis Alice Eastwood 1923-8-14 12324 Humboldt Samoa Comment
  CDA469  Abies grandis D. Spadoni 2000-10-6 PDR# 1142246 Humboldt USFS Rd. 1, Blue Lake. 0 Comment
  HSC73073  Abies procera M. A. Baker 1980-7-19 3014 Humboldt Near Bret Hole. 1814 Comment
  UC1229745  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Horse Trail Ridge Six Rivers National Forest, Horse Trail Ridge (sw slope) 1828 Comment
  BLMAR72  Abronia latifolia Jennifer Anthony-Wheeler 1994-5-18 72 Humboldt Samoa/manilla dunes, growing throughout dunes 6 Comment
  HSC59682  Abronia latifolia George Kirn 1977-10-14 Humboldt Dunes .5 mi. NW of Samoa 8 Comment
  HSC69787  Abronia latifolia R. Kalal 1979-5-27 35 Humboldt Along Samoa Blvd. 3 Comment
  SBBG11207  Abronia latifolia D. E. Breedlove 1961-7-4 664 Humboldt US Hwy 101, 28.7 mi N of jct US 299 and US 101 3 Comment
  SEINET11941806  Abronia latifolia K. S. Erdman 1970-1 4811 Humboldt Gold Bluffs Beach about 3 mi NW of Berry Glen on US 101, Prairie Creek State Park Comment
  UC1602146  Abronia latifolia Joseph P. Tracy 1936-6-6 14861 Humboldt Sandy shore near railroad station Eureka 3 Comment
  CAS-BOT-BC436987  Acaena novae-zelandiae D. W. Cooper 1966-10-10 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  RSA202442  Acaena novae-zelandiae D. W. Cooper, F. Advisor 1966-10-10 s.n. Humboldt ridge just SE of Forest Service Nursery, 2 miles SE of Crannell, 4 miles E of Hwy 101 Comment
  UC502961  Acer circinatum Joseph P. Tracy 1928-5-6 8427 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC1199016  Acer glabrum Joseph P. Tracy 1935-7-31 14394 Humboldt w side Devil's Backbone (barren rocky ridge connecting Trinity Summit with Salmon Summit); w side Devil's Backbone 1524 Comment
  HSC57033  Acer macrophyllum Overton, Butler 1979-7-24 9664 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC205627  Acer macrophyllum Joseph P. Tracy 1920-10-24 5404 Humboldt near Korbel (North Fork of Mad River); Northern Coast Ranges, North Fork of Mad River 60 Comment
  UC452623  Acer macrophyllum P. E. Goddard 1901-7 47 Humboldt Hupa Valley Hupa Valley (Mendocino and Humboldt Counties) Comment
  HSC4569  Achillea millefolium Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC4576  Achillea millefolium S. J. Hawks 1965-5-14 63 Humboldt Clam Beach Comment
  HSC49782  Achillea millefolium J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  HSC67891  Achillea millefolium J. P. Smith 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC100420  Achillea millefolium Carl C. Marshall Jul 1887 437 Humboldt Everywhere. Comment
  UC472295  Achlys californica Mrs. M. H. Manning 1901-4 32 Humboldt near Hupa Comment
  HSC57026  Achlys triphylla Overton, Butler 1979-7-24 9647 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC70631  Achlys triphylla R. York 1980-5-18 585 Humboldt Near Black Mtn. 390 Comment
  CAS-BOT-BC210659  Achnatherum lemmonii Joseph P. Tracy 1928-6-24 8466 Humboldt Valley of South Yager Creek 762 Comment
  UC180228  Achnatherum lemmonii Joseph P. Tracy 1913-5-4 4047 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  UC526754  Achnatherum lemmonii Joseph P. Tracy 1933-6-13 12597 Humboldt On road from Hoopa westward to Bair's (near summit); Hoopa Mountain 1066 Comment
  UC70821  Achnatherum lemmonii Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5680 Humboldt Hoopa Mt. Comment
  UC1222925  Achyrachaena mollis Joseph P. Tracy 1948-6-13 18054 Humboldt nearby grassy slopes Harris Comment
  SBBG67348  Acmispon americanus R. Hartwell 1938-8-3 98 Humboldt near Weott Comment
  HSC45633  Acmispon micranthus Diane L. Reed 1978-4-22 13 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC56085  Aconitum columbianum subsp. columbianum G. L. Clifton, Griswold 1979-7-31 11773 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  CAS-BOT-BC391410  Aconitum columbianum subsp. columbianum Joseph P. Tracy 1932-7-10 10393 Humboldt Klamath Mountains, Trinity Summit. Meadow at Corral Prairie 1524 Comment
  CHSC84721  Aconitum columbianum var. columbianum L. P. Janeway 2003-7-26 7921 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  CAS-BOT-BC412600  Aconogonon alaskanum Volney Rattan 1883-6-18 s.n. Humboldt Near the summit between Pilot Creek and the Trinity River Comment
  HSC101545  Actaea rubra J. P. Smith, J. O. Sawyer 2009-8-11 12653 Humboldt Green Diamond Resource land along State Route 299. 762 Comment
  UC582523  Adenocaulon bicolor Joseph P. Tracy 1932-7-17 10650 Humboldt fir woods near Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC29865  Adenocaulon bicolor Huron Herbert Smith 1911-6-20 3910 Humboldt unspecified Comment
  RSA12438  Adenocaulon bicolor Carl B. Wolf 1934-7-2 5855 Humboldt 2 mi. from Bald Mt. on rd. to Korbel. 762 Comment
  RSA418957  Adenocaulon bicolor Lyman Benson 1927-7-11 226 Humboldt Weott Ranger Station, Seaward N Coast Mts. 61 Comment
  SD9506  Adiantum aleuticum May Canfield Unknown Humboldt Carlotta Comment
  UC62718  Adiantum aleuticum W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  POM182348  Adiantum aleuticum Joseph P. Tracy 1907-8-20 2604 Humboldt Hydesville 30 Comment
  POM347034  Adiantum aleuticum Lyman Benson 1928-7-13 487 Humboldt Weatt Ranger Station 61 Comment
  UC811115  Adiantum jordanii George Neville Jones 1936-3-22 8662 Humboldt s fork Eel River near Garberville Comment
  CAS-BOT-BC202610  Aesculus californica L. R. Abrams 1916-7-10 5965 Humboldt Between Harris and Alder Pt. Comment
  UC1239508  Agoseris apargioides var. maritima Joseph P. Tracy 1918-7-28 5090 Humboldt Ocean Beach Northern Coast Region Comment
  UC582758  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1929-7-4 8621 Humboldt French Camp Ridge French Camp Ridge 1066 Comment
  UC169332  Agoseris heterophylla var. heterophylla Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3625 Humboldt near, (hillside between Hydesville and Alton) Hydesville; Northern Coast Ranges, Alton 30 Comment
  HSC73664  Agoseris retrorsa M. A. Baker 1980-7-15 2967 Humboldt Near Whiting Ridge. 1341 Comment
  CHSC111332  Agrostis castellana Barbara L. Wilson; Nick Otting 2012-7-3 17134 Humboldt Dean Creek Resort between the Eel River and the Old Redwood Highway, west of Highway 101; UTM xone 10T, 430910 east, 443867 north. 76 Comment
Read comments
Nov 6 2015
  CAS-BOT-BC127458  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon. 6 Comment
  UCD53125  Agrostis diegoensis Joseph P. Tracy 1950-8-8 19292 Humboldt Croghan Hole, on Trinity Summit. 1676 Comment
  JEPS75421  Agrostis exarata W. L. Jepson 1932-7-30 16451 Humboldt in redwood forest Bull Creek 121 Comment
  SEINET4558396  Agrostis exarata J. P. Tracy 1902-1 1757 Humboldt Immediate vicinity of Eureka 152 Comment
  UC1145070  Agrostis exarata Joseph P. Tracy 1938-7-6 16021 Humboldt in bog Big Lagoon 6 Comment
  UC176586  Agrostis exarata J. P. Tracy 1900-9-2 933 Humboldt Immediate vicinity of Eureka 0 Comment
  UC249865  Agrostis exarata Joseph P. Tracy 1924-7-13 6729 Humboldt in bog Northern Coast Region, Big Lagoon 6 Comment
  UC526895  Agrostis exarata Joseph P. Tracy 1933-7-20 12809 Humboldt along river near Blue Lake; Mad River 15 Comment
  BLMAR533  Agrostis hallii Jennifer Wheeler 2009-6-23 533 Humboldt King range, On King Peak road Comment
  CAS-BOT-BC139503  Agrostis hallii A. G. Vestal 1937-6-14 s.n. Humboldt Along Redwood Highway 14 miles south of Garberville. Comment
  HSC64165  Agrostis hallii J. O. Sawyer, K. A. Sawyer 1979-6-24 3409 Humboldt Slopes alongside Aikens Creek. 366 Comment
  CAS-BOT-BC138875  Agrostis microphylla A. A. Heller 1923-7-8 13772 Humboldt Near Fortuna. Comment
  HSC58832  Agrostis pallens Overton, Butler 1979-8-2 12693 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SEINET4558769  Agrostis pallens Doris Kildale 1925-1 s.n. Humboldt Trinity Summit 1524 Comment
  UC552753  Agrostis pallens Joseph P. Tracy 1934-7-13 13396 Humboldt in sedge swamp North Coast Ranges, Dows Prairie 60 Comment
  RSA10066  Agrostis stolonifera Joseph P. Tracy 1932-8-21 10363 Humboldt Three Cabins, on lower western foothills of Chaparral Mountain; North Coast Range 457 Comment
  UC1145072  Agrostis viridis Joseph P. Tracy 1938-8-14 16112 Humboldt along mining ditch near South Fork; Trinity River Valley 304 Comment
  HSC70764  Aira caryophyllea R. York 1980-5-17 518 Humboldt Near Le Perron Peak 792 Comment
  HSC8852  Aira caryophyllea True Hoyle 1967-9-9 27667 Humboldt 2 mi. NW of the junction of the Butler Valley and Fickle Hill roads 457 Comment
  HSC8861  Aira caryophyllea unknown May 1933 4003 Humboldt Spruce Cove, Trinidad Comment
  UCD55739  Aira caryophyllea A. A. Beetle; G. L. Stebbins 1942-6-3 3587 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
Read comments
Jan 21 2009
  SEINET14062595  Aira caryophyllea M. A. Baker 1980-5-17 1280 Humboldt Black Mtn. Comment
  CAS-BOT-BC138328  Aira caryophyllea var. caryophyllea Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  SEINET3917484  Aira praecox Joseph P. Tracy 1941-6-15 16906 Humboldt Wilder Ridge, east of Kings Peak.; 0 Comment
  RSA21655  Allium amplectens Carl B. Wolf 1937-6-14 8810 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  UC3112 Image available Allium bolanderi Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge; ; Humboldt Co. Comment
  CAS-BOT-BC464486  Allium campanulatum Doris K. Kildale 1927-7-22 3815 Humboldt Lassecks Peaks 1661 Comment
  CHSC33162  Allium hoffmanii Marc Baker 1980-7-11 2799 Humboldt Near Red Mountain. 226 mm from the left and 235 mm from the bottom on the quad map. 225 Comment
  HSC56339  Allium serra Griswold, Butler 1979-7-10 6224 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  SEINET4208044  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U.S. Hwy. 101 ca 1.0 miles west of Orick.; 0 4 Comment
  UC202013  Allium unifolium Joseph P. Tracy 1918-7-5 5004 Humboldt banks along Mattole River Northern Coast Ranges, White Thorn Valley, Mattole River 304 Comment
  UC666924  Allium unifolium Joseph P. Tracy 1928-5-20 8437 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  RSA20861  Allium unifolium Carl B. Wolf 1937-8-11 8900 Humboldt Fleener Creek, 0.5 mile south of Centerville. 46 Comment
  UC1197955  Alnus rhombifolia Joseph P. Tracy 1923-1-14 6137 Humboldt Blue Lake Northern Coast Ranges, Mad River 30 Comment
  RSA28320  Alnus rubra E. K. Balls, P. C. Everett 1953-10-12 18635 Humboldt 5.6 mi. n. of Little River, Hwy 101 between Arcata and Crescent City. 61 Comment
  UCD110034  Alnus rubra Linda M. Barker 1976-6-14 1602 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC169378  Alnus viridis subsp. sinuata Joseph P. Tracy 1930-7-16 9080 Humboldt Cool damp place along stream. S Fork Mountain, near McKay Camp 1676 Comment
  CAS-BOT-BC138146  Alopecurus aequalis var. aequalis Volney Rattan 1903-1-1 s.n. Humboldt Mad River. Comment
  UC1152033  Alopecurus geniculatus Joseph P. Tracy 1951-6-21 19524 Humboldt back of Everett Beck house (formerly Geroge Fray), bed of former Goose Lake Hydesville Comment
  UC527823  Alopecurus geniculatus Ira L. Wiggins 1932-6-18 5867 Humboldt lagoon at mouth of Little R. Comment
  SEINET11674220  Alopecurus geniculatus J. P. Tracy 1951-1 19524 Humboldt back of Everett Beck house (formerly George Fray) bed of former Goose Lake, Hydesville Comment
  HSC8900  Alopecurus pratensis L. M. Malloy 1965-3-27 2 Humboldt Arcata, 0.5 mi. W of Alliance Store along N side of Alliance Rd. Comment
  RSA245279  Ambrosia chamissonis J. D. Ackerman 1973-8-23 118 Humboldt Mad river beach co. park Comment
  SD39999  Ambrosia chamissonis Edith A. Purer 1932-7-27 4144 Humboldt Samoa, near Arcata on sand dunes Comment
  CAS-BOT-BC143017  Amelanchier utahensis Doris K. Kildale 1928-5-19 5208 Humboldt Chalk Mountain Comment
  UC1198747  Amelanchier utahensis Joseph P. Tracy 1947-8-24 17900 Humboldt at edges Box Camp Meadow (near Box Camp); Trinity Summit 1463 Comment
  UC1222322  Amelanchier utahensis Joseph P. Tracy 1951-5-6 19395 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  HSC17834  Anagallis arvensis D. E. Anderson 1963-5-25 2481 Humboldt 2-3 mi. N of Capetown Comment
  HSC100422  Anaphalis margaritacea Carl C. Marshall Aug 1886 251 Humboldt Near Arcata. Comment
  UC963845  Anaphalis margaritacea H. E. Parks and S. T. Parks 1943-8-1 24237 Humboldt along highway Stone Lagoon Comment
  SEINET10475558  Anaphalis margaritacea Mary Susan Taylor 1975-4-12 Taylor 466 Humboldt Ca. 2000 yds E of Hwy 101, in Orick, by railroad tracks. Comment
  HSC102001  Anemone deltoidea M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 902 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC535706  Anemone deltoidea Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  CAS-BOT-BC391772  Anemone deltoidea M. Louise Hutchinson 1913-5-1 s.n. Humboldt Near Eureka Comment
  HSC22553  Anethum graveolens Paul Shields Sep 1955 Humboldt 1 mi. S of Weott Comment
  JEPS16073  Angelica genuflexa Joseph P. Tracy 1927-9-25 8380 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  UC585999  Angelica genuflexa Joseph P. Tracy 1927-9-25 8380 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  HSC71322  Angelica genuflexa J. M. DiTomaso 1980-10-1 1996 Humboldt S Eureka limits across from Sunset Mortuary Comment
  JEPS14106  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  UC1197377  Angelica hendersonii Joseph P. Tracy 1924-9-28 6909 Humboldt Northern Coast Ranges, Centerville Centerville; Northern Coast Ranges, Centerville 6 Comment
  UC1222615  Angelica hendersonii Joseph P. Tracy 1950-9-10 19352 Humboldt Bear River Ridge 609 Comment
Read comments
Oct 12 2007
  UC582635  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  UC642307  Angelica hendersonii Joseph P. Tracy 1938-8-28 16134 Humboldt Trinidad 3 Comment
  CDA38221  Angelica hendersonii T. C. Fuller 1958-6-17 1718 Humboldt Maritime bluff above Oceanhouse, Cape Mendocino. 0 Comment
  UCD127227  Angelica hendersonii Joseph DiTomaso 1980-6-29 1634 Humboldt north side of Elkshead. 2 miles north of Trinidad. Comment
  POM318530  Angelica lucida Patricia Wilder 1968-8-21 4376 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  HSC70545  Angelica tomentosa M. A. Baker 1980-7-22 3080 Humboldt Near Salmon Mtn. 1820 Comment
  UC1199376  Anthemis cotula Joseph P. Tracy 1918-7-1 4962 Humboldt along Eel River from South Fork to Scotia Eel River 60 Comment
  HSC10096  Anthoxanthum occidentale C. R. Phillips 1964-2-29 Humboldt E of Blue Lake on dirt road turning off Hwy 299 Comment
  CAS-BOT-BC137742  Anthoxanthum odoratum Doris Kildale 1931-5-10 15681 Humboldt Snow Camp. Comment
  JEPS71148  Anthoxanthum odoratum A. L. Hormay 1932-5-11 48 Humboldt Arcata Comment
  UC922012  Anthoxanthum odoratum Joseph P. Tracy 1948-6-13 18046 Humboldt Dobbyn Creek 152 Comment
  UC582470  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1933-8-30 13004 Humboldt Horse Mountain; Northern Coast Ranges 1066 Comment
  RSA371546  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-30 360 Humboldt Orleans vicinity. 40 ft. N of the southern junction of Cedar Camp Road and Hwy. 96. 183 Comment
  HSC57897  Apocynum androsaemifolium Overton, Butler 1979-7-31 11477 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC58041  Apocynum androsaemifolium Gilbert Muth 1979-8-1 11887 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC153990  Apocynum androsaemifolium Joseph P. Tracy 1909-8-1 3063 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC35591  Aquilegia formosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2002 Humboldt At French Camp, Bald Hills Comment
  SEINET12093083  Aquilegia formosa F. H. Utech 1986-1 86 -391 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  HSC45442  Aquilegia formosa var. formosa M. Alcasas 1978-5-6 62 Humboldt Maple Creek Rd. 1.5 mi. W of Mad River crossing 161 Comment
  HSC45491  Aquilegia formosa var. formosa Maralyn O'Meara 1972-6-8 102 Humboldt Along Bald Hills Rd. 18 mi. E of junction with Hwy. 101 Comment
  HSC53858  Arabis glabra Griswold, Butler 1979-7-10 6329 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC73687  Arabis glabra M. A. Baker 1980-7-15 2980 Humboldt Near Whiting Ridge. 1341 Comment
  HSC74294  Arabis glabra M. A. Baker 1980-7-22 3099 Humboldt Near Grogan Hole. 1676 Comment
  UC492237  Arabis glabra Joseph P. Tracy 1932-5-1 9860 Humboldt Redway Northern Coast Ranges 152 Comment
  RSA0126368  Arabis glabra Joseph P. Tracy 1946-7-7 17610 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC57630  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-7-25 10778 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC167256  Aralia californica Doris K. Kildale 1926-11-14 2860 Humboldt Stephen's Grove near Miranda Comment
  CAS-BOT-BC128700  Arbutus menziesii Doris K. Kildale 1925-8-13 1114 Humboldt Willow Creek Flat - Trinity River Valley 152 Comment
  HSC79369  Arbutus menziesii Kenneth Clark 1980-11-28 1050 Humboldt Above Point No Pass 488 Comment
  HSC99399  Arbutus menziesii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 48 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1222872  Arctium minus Joseph P. Tracy 1950-9-2 19351 Humboldt at, 3 mi s of Field's Landing Beatrice Comment
  UC585951  Arctostaphylos Joseph P. Tracy 1932-7-12 10474 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  UC1225938  Arctostaphylos X media Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  JEPS38977  Arctostaphylos canescens Joseph P. Tracy 1935-7-14 14064 Humboldt Horse Mountain 1432 Comment
  UCD50523  Arctostaphylos canescens Roman Gankin 1965-8-5 543 Humboldt Top of Chimisal Mountain west of Wailaki Recreation Area, Bureau of Land Management. Comment
  CAS-BOT-BC23730  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15439 Humboldt Eureka 45 Comment
  CAS-BOT-BC23764  Arctostaphylos columbiana J. E. Adams 1935-5-12 1048 Humboldt Patrick's Point Comment
  CAS-BOT-BC23811  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny, near Humboldt - Mendocino county line. Comment
  JEPS24943  Arctostaphylos columbiana J. E. Adams 1935-5-12 1045 Humboldt Patrick's Point Comment
  RSA622677  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27669 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  RSA622691  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27671 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1198663  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13138 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC176995  Arctostaphylos columbiana Joseph P. Tracy 1912-7-22 3794 Humboldt Table Bluff Northern Coast Region, region about Humboldt Bay 0 Comment
  UC718361  Arctostaphylos columbiana Carl B. Wolf 1934-7-2 5904 Humboldt 4 mi from Snow Camp (on road to Bald Mt.); Mts. E. of Korbel Comment
  UCD50758  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1167 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). Comment
  POM209627  Arctostaphylos columbiana var. columbiana H. E. Parks 1931-12 4950 Humboldt Hobson's Trinidad. 61 Comment
  HSC101663  Arctostaphylos glandulosa var. cushingiana J. P. Smith, J. O. Sawyer 2011-4-23 13124 Humboldt Kings Peak Road near Shelter Cove. 523 Comment
  JEPS38950  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  RSA632795  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27774 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA632808  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27773 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA633014  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27807 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  CAS-BOT-BC24374  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-9-5 2614 Humboldt Lasseck's Peaks - near trail to Red Peak. 1661 Comment
  CAS-BOT-BC38836  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1926-9-15 s.n. Humboldt Junction, South fork of the Trinity and Trinity River Comment
  HSC7658  Arctostaphylos nevadensis Doris K. Kildale 1926-9-5 2615 Humboldt Lassicks Peaks, Red Lassick and Gray Camp 1662 Comment
  CAS-BOT-BC40066  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1179 Humboldt French Camp Ridge21.4 miles east of US 101 on Bald Hills Road (from Orick) Comment
  CAS-BOT-BC46638  Arctostaphylos patula C. Hart Merriam 1919-8-10 s.n. Humboldt Wetchpek, Klamath Canyon. Comment
  HSC7725  Arctostaphylos uva-ursi S. J. Hawks 1965-3-19 10 Humboldt 1/4 mi. W of Fairhaven Comment
  SEINET11984848  Arctostaphylos uva-ursi Unknown 1965-1 555 Humboldt 1.3 mi S of Samoa, Samoa Peninsula Comment
  HSC59030  Arctostaphylos viscida M. A. Baker 1979-6-7 795 Humboldt NE slope of Telescope Peak 1189 Comment
  UC668124  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 a Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  CAS-BOT-BC64584  Armeria maritima subsp. californica Ira L. Wiggins 1930-7-11 4683 Humboldt Near Samoa. Comment
  HSC32042  Armeria maritima subsp. californica J. D. Ackerman 1974-5-25 267 Humboldt About 0.25 mi. S of Lufenholtz Co. Beach, off Scenic Dr. between Trinidad and Moonstone Beach. Comment
  HSC69625  Armeria maritima subsp. californica R. Kalal 1979-5-29 34 Humboldt Along Samoa Blvd. 3 Comment
  HSC89499  Armeria maritima subsp. californica M. Roantree 1985-5-24 50 Humboldt N side of Trinidad Head on slope below trail. Comment
  HSC46207  Arnica cernua Thomas W. Nelson 1977-6-15 3435 Humboldt Horse Mtn.; along USFS Rd. 5N10 about 100 m south of junction with USFS Rd. 6N01 Comment
  HSC58540  Arnica discoidea Overton, Butler 1979-7-23 9505 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  CAS-BOT-BC82426  Arnica discoidea Joseph P. Tracy 1923-6-20 6335 Humboldt Briceland 304 Comment
  UC129316  Arnica discoidea Joseph Burtt Davy and Walter C. Blasdale 1899-7-19 5668 Humboldt Hoopa Mt. North-Western California, Hoopa Mt. Comment
  HSC102702  Arrhenatherum elatius J. P. Smith 2013-6-16 13730 Humboldt Along State Route 36, adjacent to the Dinsmore Airport. 735 Comment
  UC1103324  Arrhenatherum elatius Joseph P. Tracy 1927-7-4 8237 Humboldt North Coast Ranges, Iaqua, Lone Star Creek Lone Star Creek Lone Star Creek; North Coast Ranges, Iaqua, Lone Star Creek 609 Comment
  CAS-BOT-BC84834  Artemisia douglasiana Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  RSA109296  Artemisia pycnocephala H. E. Parks, S. T. Parks 1952-06 24495 Humboldt Ocean sand dunes, Samoa Comment
  SEINET190493  Artemisia suksdorfii H. E. Parks May 1940 24178 Humboldt Little River Comment
  SD56775  Artemisia suksdorfii Darley F. Howe 1963-7-8 3620 Humboldt 2.5 miles west of Bridgeville on Cal. 36. 149 Comment
  CAS-BOT-BC400535  Asarum caudatum H. E. Parks 1931-3-24 0918 Humboldt Near Orick Comment
  UC162718  Asclepias cordifolia Joseph P. Tracy 1911-7-9 3477 Humboldt near Willow Creek (hill slopes at w side of river); Northern Coast Ranges, Trinity River 182 Comment
  UC1197608  Asclepias eriocarpa Joseph P. Tracy 1932-9-3 10764 Humboldt Alton to Fortuna; Eel River 15 Comment
  CAS-BOT-BC65944  Aspidotis densa L. R. Abrams 1918-6-15 7123 Humboldt Brannan Mt near Willow Creek 1371 Comment
  RSA93746  Aster radulinus F. W. Peirson 1923-7-10 3881 Humboldt Garberville. Comment
  RSA104885  Astragalus agnicidus R. C. Barneby 1954-5-19 11570 Humboldt Over ridge on Henry Tosten ranch near Bear Buttes area. 4 miles south of Miranda. 762 Comment
  UC502992 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; near Bear Buttes, Humboldt Co. 762 Comment
  RSA0006694  Astragalus agnicidus R. C. Barneby 1954-5-19 11570 Humboldt Over ridge on Henry Tosten ranch near Bear Buttes area. 4 miles south of Miranda. 762 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
  JEPS79823  Astragalus rattanii var. rattanii Joseph P. Tracy 1932-6-19 10245 Humboldt nw slope of Buck Mountain Buck Mountain (lower foothills); Northern Coast Ranges, Buck Mountain 762 Comment
  RSA135343  Astragalus rattanii var. rattanii Volney Rattan 1884-1 s.n. Humboldt Big Creek. Comment
  UCD105332  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt Bald Mountain; at 'Lake Prairie'. 1066 Comment
  CAS-BOT-BC69451  Athyrium filix-femina subsp. cyclosorum L. B. Kildale 1930-7-7 10264 Humboldt Chaparral Mt. at Bug Creek. 914 Comment
  JEPS35144  Athyrium filix-femina var. cyclosorum Lincoln Constance 1934-6-2 785 Humboldt S. Fork Eel River Comment
  UC1198296  Athysanus pusillus Joseph P. Tracy 1937-5-16 15283 Humboldt nw of Harris 914 Comment
  RSA424567  Atriplex patula T. S. Elias, Barbara A. Elias 1987-8-26 10623 Humboldt Fernbridge Comment
  CDA23297  Atriplex patula var. obtusa Gordon Leppig 1999-10-25 1266 Humboldt Eureka, PALCO Marsh Comment
  UC161058  Atriplex triangularis Joseph P. Tracy 1911-10-22 3552 Humboldt Salt marsh near Eureka (region about Humboldt Bay); Northern Coast Region, , nr Eureka 0 Comment
  HSC38834  Avena barbata R. Sutherland 1976-8-18 6 .18876 Humboldt 195 Comment
  HSC9031  Avena barbata Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  HSC45051  Avena fatua R. Sutherland 1978-4-24 8 .24478 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  UC34069  Avena fatua J. P. Tracy 1901-6-23 1177 Humboldt Immediate vicinity of Eureka 0 Comment
  UC207825  Avena sativa Joseph P. Tracy 1916-5-31 4703 Humboldt Stitz Creek Northern Coast Ranges, Eel River (along river from South Fork to Scotia) 60 Comment
  RSA167192  Balsamorhiza deltoidea Joseph P. Tracy 1950-6-15 18792 Humboldt Mail Ridge, north of Harris 7 miles Comment
  HSC39056  Barbarea orthoceras Thomas W. Nelson, Jane P. Nelson 1976-5-31 2642 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC102640  Barbarea vulgaris M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1624 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC95549  Barbarea vulgaris Andrea Pickart 2002-5-24 107 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  HSC5186  Bellis perennis R. E. Hafenfeld 1965-5-9 41 Humboldt 1/2 mi. N Home Creek near Bold Bluff Beach Rd. Comment
  CAS-BOT-BC106400  Bellis perennis R. Kent Beattie 1946-9-11 11875 Humboldt Redwood forest near Van Dusen River, one mile northwest of STrongs Station on Route 36 Comment
  HSC40989  Berberis aquifolium Thomas W. Nelson 1976-6-14 2704 Humboldt Along ridge S of E peak of Lassic Peak 1646 Comment
  HSC74356  Berberis aquifolium var. repens Gail Newton 1980-6-17 228 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC75678  Berberis nervosa Doris K. Kildale 1926-11-25 2827 Humboldt Lord-Ellis road. Comment
  HSC31651  Berberis nervosa Timothy B. Devine 1974-5-4 321 Humboldt 1/4 mi. N of junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC37355  Berberis nervosa Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 482 Humboldt Along Lost Man Creek. 38 Comment
  HSC35713  Berberis pinnata Thomas W. Nelson 1975-10-12 2237 Humboldt McKeown Ranch, N of Dinsmore Comment
  RSA246849  Berberis pinnata R. F. Thorne, P. Everett 1965-8-5 35141 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  UC169912  Berberis pinnata Mrs. M. H. Manning April, 1901 33 Humboldt near Hupa Comment
  SEINET11861631  Bidens frondosa J. P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Creek below Orleans 8 mi 122 Comment
  UCD114326  Boechera divaricarpa Joseph P. Tracy 1932-7-11 10396 Humboldt Trinity Summit. Open ground at corral prairie, Klamath Mountains. 1524 Comment
  HSC103082  Boechera sparsiflora Sydney Carothers 2014-7-3 21 Humboldt Six Rivers National Forest, summit of Mt. Lassic 1791 Comment
  HSC100574  Boisduvalia densiflora Carl C. Marshall Jul 1887 398 Humboldt Spruce Grove. Comment
  SEINET12188876  Boisduvalia densiflora J. P. Tracy 1950-1 18843 Humboldt Cape Mendocino, S of point of the Cape, Davis Creek 30 Comment
  POM256471  Boisduvalia glabella Joseph P. Tracy 1938-7-5 16010 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  UCD140029  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1998-6-25 851 Humboldt Route 101 milemarker 81.60. East side of highway. 2 Comment
  JEPS13526  Boschniakia strobilacea W. L. Jepson 1902-7-16 2052 Humboldt Trinity Summit. 2133 Comment
  UC1478440  Botrychium multifidum Keith Curry 1974-1 Humboldt 5 mi s Trinidad (roadside rest Hwy. 101) Comment
  JEPS19058  Botrychium multifidum Milo S. Baker 1923-7-15 13 Humboldt southeastern outskirts of Eureka (near M and Hays Streets) Comment
  CAS-BOT-BC420273  Boykinia occidentalis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC420258  Boykinia occidentalis A. A. Heller 1937-6-12 15890 Humboldt at Bishop Pine Lodge, 3 miles north of Trinidad Comment
  CDA30214  Brassica nigra M. K. Beyers, I. Shepardson 2009-9-13 243 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  UC180219  Brassica nigra Joseph P. Tracy 1914-6-28 4514 Humboldt Near Hydesville; Northern Coast Ranges 60 Comment
  CAS-BOT-BC106297  Brickellia californica Carl B. Wolf 1931-8-31 1252 Humboldt Gravel slopes west side of South Fork of Trinity River, 1 mile above its mouth. (Sandy Bar Swimming Hole) 243 Comment
  SEINET5781061 Image available Brickellia californica S. K. Harris, C. M. Wilder 1938-9-8 Humboldt Van Duzen River, below Blue Slide Comment
  HSC70984  Brickellia greenei Gail Newton 1980-7-22 1660 Humboldt Near Devils Backbone 1554 Comment
  HSC45594  Briza minor Diane L. Reed 1978-5-7 60 Humboldt 2 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  HSC9093  Briza minor R. Spellenberg 1965-6-13 1108 Humboldt Along highway, 2 mi. S of Hoopa Comment
  CAS-BOT-BC484216  Brodiaea elegans subsp. elegans Doris K. Kildale 1927-7-1 3618 Humboldt Alton Hill 30 Comment
  UC1222693  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-6-23 18867 Humboldt 3 mi ne Alderpoint (at creek); Dobbyn Creek 213 Comment
  HSC45072  Brodiaea terrestris subsp. terrestris R. Sutherland 1978-5-12 5 .12578 Humboldt McKee Flat 288 Comment
  RSA259587  Bromus carinatus D. E. Anderson, J. P. Smith 1971-6-28 1971 Humboldt ca. 2.5 mi. south of Blue Lake along the Mad River. Comment
  SEINET943640  Bromus carinatus var. carinatus T. R. Van Devender, R. K. Van Devender 1990-1 90 -105 Humboldt Paticks Point State Park, near Trinidad Comment
  UC1103278  Bromus carinatus var. carinatus Joseph P. Tracy 1942-6-2 17098 Humboldt 2 mi n of Bridgeville 609 Comment
  HSC103009  Bromus diandrus J. P. Smith 2014-5-20 13851 Humboldt Samoa Peninsula 6 Comment
  HSC9279  Bromus diandrus H. S. Haskell 1966-4-23 23 Humboldt Near Samoa. Comment
  SEINET4391136  Bromus diandrus W. D. Billings 1940-6-22 1343 Humboldt 0.5 mile N of Trinidad Comment
  CAS-BOT-BC155427  Bromus hordeaceus Doris K. Kildale 1926-5-2 1902 Humboldt Willow Creek Flat. Trinity River Valley. 152 Comment
  RSA10108  Bromus hordeaceus Joseph P. Tracy 1933-6-25 12622 Humboldt Along Eel River, 2 to 5 miles east of South Fork.Camp Grant. Comment
  UC552680  Bromus hordeaceus Joseph P. Tracy 1935-5-25 13867 Humboldt Fort Seward 106 Comment
  HSC9266  Bromus racemosus L. M. Malloy 1965-5-15 16 Humboldt N of Trinidad about 2 mi. on Trinity St. Comment
  UC1145181  Bromus sterilis Joseph P. Tracy 1950-6-15 18776 Humboldt Mail Ridge 944 Comment
  UC1103353  Bromus tectorum Joseph P. Tracy 1933-6-13 12600 Humboldt from Hoopa westward to Bair's (near summit of Horse Mountain); Horse Mountain 914 Comment
  CAS-BOT-BC185517  Bromus vulgaris W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River. Comment
  UC161575  Cakile edentula J. P. Tracy 1901-8-7 1266 Humboldt Ocean Beach at Samoa, opposite Eureka Ocean Beach; Samoa, Ocean Beach Comment
  POM312414  Cakile edentula Malcolm A. Nobs, Walter Wisura 1949-8-11 1337 Humboldt Eastern shore of Stone Lagoon. Comment
  RSA34316  Cakile edentula C. Kistner 1935-5-10 s.n. Humboldt [No location information.] Comment
  CAS-BOT-BC36862  Cakile edentula var. edentula Doris K. Kildale 1926-7-14 2375 Humboldt Trinidad Beach. Comment
  HSC6603  Cakile maritima J. W. Johnson 1961-8-17 1066 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata Comment
  UC1103289  Calamagrostis canadensis Joseph P. Tracy 1935-7-27 14290 Humboldt McKay Prairie Trinity Summit (along creek) 1584 Comment
  CAS-BOT-BC185316  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt Bank of Mattole River at bridge 3 miles east of Petrolia. 30 Comment
  UC526776  Calamagrostis nutkaensis Joseph P. Tracy 1925-7-5 7174 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1145049  Calamagrostis rubescens Joseph P. Tracy 1938-7-17 16082 Humboldt Garberville; river bank 152 Comment
  HSC62669  Callitriche stagnalis Michelle Stevens 1979-5-18 115 Humboldt By Bayside Grange at 2297 Jacoby Rd., Bayside. 0 Comment
  HSC73163  Calocedrus decurrens Gail Newton 1980-6-17 207 Humboldt Near Onion Mtn. 1341 Comment
  OBI7409  Calocedrus decurrens H. Wiedman July1966 s.n. Humboldt Near the Hoopa Valley Indian Reservation 366 Comment
  CAS-BOT-BC488455  Calochortus amabilis Doris K. Kildale 1926-5-16 2004 Humboldt Miranda on south fork of Eel River. Comment
  HSC100551  Calochortus pulchellus Carl C. Marshall May 1887 479 Humboldt S Humboldt. Comment
  HSC15381  Calochortus tolmiei D. E. Anderson 1965-5-8 3653 Humboldt 3.5 mi. N of Willow Creek along rd. running along E of Trinity River Comment
  HSC32949  Calochortus tolmiei Thomas W. Nelson, James Nelson 1973-5-28 961 Humboldt McKeown Ranch N of Dinsmore Comment
  UC175806  Calochortus tolmiei Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3621 Humboldt near Hydesville (between Alton and Burnells); Northern Coast Region 30 Comment
  CAS-BOT-BC496523  Calochortus tolmiei Mark Bransom; Daniel Brown; Ron Hidebrant; Nina Meiselman 1986-4-18 6 Humboldt 1 1/2 mi. west of Burnt Ranch on Rt. 299; Burnt Ranch Campground; 1584 Comment
  UC1197694  Calochortus vestae Joseph P. Tracy 1930-6-29 8811 Humboldt nw slope Buck Mountain 762 Comment
  UC195065  Calycadenia truncata Joseph P. Tracy 1916-9-5 4755 Humboldt head of Canoe Creek Northern Coast Ranges, Grasshopper Ridge 609 Comment
  RSA54132  Calycadenia truncata subsp. scabrella H. M. Pollard 1946-8-31 s.n. Humboldt Orleans to Somes Bar Comment
  HSC39966  Calypso bulbosa Linda M. Barker 1976-3-22 1347 Humboldt 3 mi. W of Arcata Comment
  RSA256574  Calypso bulbosa J. D. Ackerman 1975-5-3 436 Humboldt 1 mile east of Blue Lake, along hwy. 299 T6N R2E S29 Comment
  UC275535  Calypso bulbosa Joseph P. Tracy 1924-3-30 6631 Humboldt near Bridgeville (Northern Coast Ranges); Northern Coast Ranges 182 Comment
  HSC55179  Calyptridium monospermum Gilbert Muth 1979-8-1 12189 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC99454  Calyptridium monospermum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 106 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
  JEPS52522  Calyptridium umbellatum W. L. Jepson 1902-7-16 2040 Humboldt Trinity Summit 2133 Comment
  UC673024  Calyptridium umbellatum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8946 Humboldt summit near Blake Lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  SEINET200995  Calystegia polymorpha Joseph P. Tracy 1937-7-24 15531 Humboldt Trinity Summit head of Little Hors-Linto Creek. 1372 Comment
  JEPS98261  Calystegia silvatica subsp. disjuncta Gordon Leppig 2001-7-11 1579 Humboldt W shoulder of south G street, about 75 m S of the City of Arcata Corporation Yard entrance Arcata Comment
  HSC104033  Calystegia soldanella E. R. Fyer 2015-4-26 24 Humboldt Along New Navy Base Road 9 Comment
  SD42477  Calystegia soldanella Carl B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  HSC39613  Camassia quamash subsp. linearis Thomas W. Nelson, Jane P. Nelson 1976-6-15 2717 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  JEPS61560  Camassia quamash subsp. quamash Hilda W. Grinnell 1932-6-12 Humboldt below McKay Camp (South Fork Mountain); South Fork Mountain Comment
  UC175286  Camassia quamash subsp. quamash Joseph P. Tracy 1913-6-17 4152 Humboldt Burr Valley on nw slope of Buck Mountain Burr Valley; Northern Coast Ranges, Buck Mountain, Burr Valley 1066 Comment
  RSA245215  Camissonia cheiranthifolia subsp. cheiranthifolia T. M. Mingo 1965-05 s.n. Humboldt Clam Beach Comment
  HSC48807  Camissonia strigulosa Brad Klipfel 1975-5-22 619 Humboldt Near the city of Eureka airport S of Samoa Comment
  CAS-BOT-BC160242  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  CHSC10102  Camissoniopsis cheiranthifolia subsp. cheiranthifolia J. W. Johnson 1961-8-17 1044 Humboldt Arcata. Sand dune fields, Lanphere Farm. Comment
  SEINET10462987  Campanula prenanthoides Vollmer VOLLMER 149 Humboldt On road to Bald Mountain, east of Korbel Comment
  SEINET10972391  Campanula prenanthoides Pollard 1948-8-4 POLLARD s.n. Humboldt Orleans Mountain Trail 1219 Comment
  SEINET10463440  Campanula scouleri Willis L. Jepson 1902-7-30 Jepson 2128 Humboldt THREE CREEKS TO REDWOOD CREEK 914 Comment
  SEINET3238935 Image available Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek 150 Comment
  UC492265  Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC6624  Capsella bursa-pastoris Paul Shields Jul 1955 Humboldt 2 mi. S of Weott Comment
  HSC100459  Cardamine breweri Carl C. Marshall Apr 1886 158 Humboldt Wet places, near Tulley's. Comment
  CAS-BOT-BC37418  Cardamine californica LeRoy Ellsworth Detling 1935-4-20 1642 Humboldt Lansdale Redwood Grove. Comment
  UC1199188  Cardamine californica Joseph P. Tracy 1918-4-21 4878 Humboldt on road to Kneeland Prairie (around Humboldt Bay); Northern Coast Ranges, around Humboldt Bay 152 Comment
  POM214829  Cardamine californica var. integrifolia Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  RSA167405  Cardamine californica var. integrifolia Joseph P. Tracy 1950-5-7 18651 Humboldt On the Redwood House Road, S of Redwood House 1 mile, on Yager Slope. (Head of South Yager Creek). Comment
  UC1199193  Cardamine nuttallii var. covilleana Joseph P. Tracy 1949-6-25 18352 Humboldt near Box Camp (Trinity Summit); , near Box Camp 1524 Comment
  HSC28224  Cardamine oligosperma Thomas W. Nelson 1971-4-12 378 Humboldt S spit of Humboldt Bay. Comment
  UC673286  Cardamine oligosperma Lincoln Constance and Reed C. Rollins 1942-5-11 2871 Humboldt three mi e East Fork Willow Creek; North Coast Ranges, e of East Fork Willow Creek Comment
  UCR45400  Cardamine oligosperma Barry Silver 1986-4-23 539 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  CAS-BOT-BC37891  Cardamine oligosperma Doris K. Kildale 1927-3-20 2916 Humboldt Philipsville. Smith Fork of Eel River. Comment
  HSC90395  Cardamine oligosperma Jean Hanson 1980-4-12 37 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  UC1199204  Cardamine oligosperma Joseph P. Tracy 1919-3-31 5166 Humboldt along Willow Creek ((Tributary of Trinity River, Humboldt Co) near its mouth); Northern Coast Ranges, along Willow Creek 152 Comment
  CDA18246  Carduus tenuiflorus G. D. Barbe, T. C. Fuller 1974-6-18 1884 Humboldt North Coast Ranges; Fortuna bottoms, Grizzly Bluff; Waddington Rd. 1/4 mi N of Pleasant Point Rd. (Ferndale Bottoms) 2 mi N of Grizzly Bluff Rd. 0 Comment
  RSA167248  Carduus tenuiflorus Joseph P. Tracy 1947-6-8 17703 Humboldt 0.5 mile west of town Comment
  UC197208  Carex abrupta Joseph P. Tracy 1913-6-13 4104 1/2 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA34051  Carex angustata A. A. Heller 1923-7-10 s.n. Humboldt Eel River between Scotia and Pepperwood. Comment
  UC249756  Carex aquatilis var. dives Joseph P. Tracy 1924-7-4 6704 Humboldt Snow Camp Northern Coast Ranges, Snow Camp 1371 Comment
  UC562286  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 13504 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 6 Comment
  UC562628  Carex athrostachya Joseph P. Tracy 1904-7-18 13426 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC19218  Carex barbarae Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  POM273208  Carex barbarae Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  CDA33036  Carex barbarae F. Wetherbee 1962-5-1 Humboldt Ferndale. 0 Comment
  SEINET200966  Carex bolanderi Joseph P. Tracy 1935-6-23 13985 Humboldt Northern Coast Ranges French Camp Ridge. 1067 Comment
  UC249760  Carex bolanderi Joseph P. Tracy 1923-6-20 6332 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC44056  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1977-7-1 3552 Humboldt Along Blanket Creek 1494 Comment
  RSA246870  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35128 Humboldt Wailaki Recreation site. 518 Comment
  SEINET3900272  Carex breviligulata Thomas Nelson, Ken Hindley 1978-5-28 4086 Humboldt On Mckeown Ranch north of Dinsmore.; 0 762 Comment
  RSA293172  Carex densa Thomas W. Nelson, Ken Hindley 1978-5-28 4086 Humboldt On McKeown Ranch north of Dinsmore. 762 Comment
  UC1115813  Carex densa Joseph P. Tracy 1938-6-9 15877 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC34980  Carex densa Joseph Prince Tracy 1927-5-30 8095 Humboldt Northern Coast Ranges.Garberville. 121 Comment
  JEPS80030  Carex densa Joseph P. Tracy 1936-6-17 14953 Humboldt lower foothills of nw slope of Buck Mountain Northern Coast Ranges, Buck Mountain 762 Comment
  JEPS25978  Carex echinata subsp. echinata Joseph P. Tracy 1932-7-14 10567 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  SEINET11630974  Carex feta J. P. Tracy 1950-1 19010 Humboldt Buck Mountain, 3 mi S of Burr Valley, on Albee Road 1158 Comment
  SEINET7559345 Image available Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt Grouse Mountain Quad, High North Coast Range, on northeast side of Titlow Hill Road, across from a small pond, on the map but un-named, 1.1 km south of Cold Spring. 1426 Comment
  HSC98786  Carex fracta Cara Witte 2007-7-11 489 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  RSA167280  Carex fracta Joseph P. Tracy 1950-7-2 18963 Humboldt Happy Camp Mountain (in Trinity Summit Range, 6 miles NE of Hawkins Bar.) Wet place at Fern Spring 1280 Comment
  UC1103063  Carex globosa Joseph P. Tracy 1932-5-1 9852 Humboldt 3 mi n Garberville; North Coast Ranges, Redway 182 Comment
  UC1103591  Carex gynodynama Joseph P. Tracy 1938-6-11 15893 Humboldt Vicinity of Carlotta. Comment
  CAS-BOT-BC21020  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at south fork of the Eel River. Comment
  JEPS80026  Carex hendersonii Joseph P. Tracy 1926-6-13 7598 Humboldt Blue Lake Northern Coast Ranges, Blue Lake 152 Comment
  CAS-BOT-BC28164  Carex hoodii Joseph Prince Tracy 1932-7-11 10410 Humboldt Trinity Summit, Open places at Corral Prairie. Comment
  HSC102204  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1119 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC35563  Carex jonesii Joseph Prince Tracy 1935-7-26 14257 Humboldt Trinity Summit, Meadows at Water Dog Lakes 1828 Comment
  SEINET7563579 Image available Carex laeviculmis L. P. Janeway 2003-7-30 7938 Humboldt High North Coast Ranges, Cold Spring, 0.6 km north of the top of Titlow Hill. Grouse Mountain Quad. 1454 Comment
  HSC73725  Carex leporinella M. A. Baker 1980-7-22 3072 Humboldt Near Salmon Mtn. 1820 Comment
  HSC102235  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1157 Humboldt Patterson Meadows 1555 Comment
  HSC82414  Carex microptera Thomas W. Nelson 1979-7-11 5033 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  HSC34959  Carex multicaulis Thomas W. Nelson 1975-5-24 1869 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC44074  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-7-1 3581 Humboldt Along road, N from Alder Springs 1463 Comment
  RSA167282  Carex multicostata Joseph P. Tracy 1950-7-25 19064 Humboldt South Fork Mountain. Openings in fir forest near McKay camp. 1677 Comment
  UCR52378  Carex nudata L. P. Janeway 1984-4-28 751 Humboldt Garberville Q., West side of the South Fork of Eel River at Butte Creek, across the river from Miranda. 75 Comment
  UC1103621  Carex nudata Joseph P. Tracy 1933-5-18 12194 Humboldt 6 mi W of Blue Lake (Mad River) 15 Comment
  UC562318  Carex nudata Joseph P. Tracy 1927-5-30 8082 Humboldt near Garberville (Redwood Creek) 121 Comment
  CHSC34066  Carex obnupta Joseph P. Tracy 1906-5-13 2459 Humboldt Northern Coast Region of California. Ocean beach at Humboldt Bay. Comment
  HSC76819  Carex obnupta L. P. Janeway 1982-8-7 112 Humboldt Along Prairie Creek, ~5 mi. N of Prairie Creek Campground along Hwy. 101 183 Comment
  JEPS79831  Carex obnupta Joseph P. Tracy 1934-7-13 13381 Humboldt North Coast Ranges, Arcata Bottom Arcata Bottom; North Coast Ranges, Arcata Bottom 15 Comment
  RSA15497  Carex obnupta Joseph P. Tracy 1934-7-30 13514 Humboldt Dry Lagoon (Along coast in front of South End of Stone Lagoon). 3 Comment
  UC1115802  Carex ovalis Joseph P. Tracy 1939-7-9 16315 Humboldt 1 mi n Murphy Meadows (a mile or so from type locality); Bald Mt. 914 Comment
  CAS-BOT-BC119237  Carex pachystachya Joseph Prince Tracy 1930-7-16 8984 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1676 Comment
  HSC73703  Carex pachystachya M. A. Baker 1980-7-22 3122 Humboldt Near Grogan Hole. 1676 Comment
  JEPS79854  Carex pachystachya Joseph P. Tracy 1932-7-14 10548 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  HSC76793  Carex pachystachya L. P. Janeway 1982-6-20 17 Humboldt Along Titlow Hill Rd., 3 mi. from Hwy. 299 1220 Comment
  UC1115800  Carex pachystachya Joseph P. Tracy 1939-6-9 16324 Humboldt Lake Prairie Bald Mountain 1066 Comment
  CAS-BOT-BC119167  Carex pansa W. R. Dudley 1899-6-1 s.n. Humboldt Penninsula opposite Eureka. Comment
  UC562258  Carex pansa Joseph P. Tracy 1935-7-18 14104 Humboldt next to Table Bluff (around Humboldt Bay); around Humboldt Bay 3 Comment
  CAS-BOT-BC118821  Carex preslii R. Tallent 1987-8-11 893 Humboldt Six Rivers National Forest. Roadside S of Horse Mtn. 1449 Comment
  HSC75279  Carex rostrata J. O. Sawyer, D. A. Thornburgh 1980-9-9 4076 Humboldt Mill Creek Lake and surrounding meadows Comment
  UC1103577  Carex subfusca Joseph P. Tracy 1936-6-10 14916 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA91642  Carex tumulicola Alice Eastwood, John Thomas Howell 1937-6-23 4758 Humboldt Dinsmore s. Comment
  RSA152530  Carex unilateralis Joseph P. Tracy 1946-5-30 17539 Humboldt Wet gully in grassland near Bridgeville. 457 Comment
  UC562649  Carex unilateralis Joseph P. Tracy 1927-7-17 8276 Humboldt Three Cabins; lower western foothills of Chaparral Mountain 457 Comment
  UC562329  Carex vesicaria Joseph P. Tracy 1934-7-18 13428 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1103618  Carex vesicaria Joseph P. Tracy 1937-7-29 15693 Humboldt McKay Camp South Fork Mountain 1676 Comment
  SBBG57215  Carex viridula H. E. Parks -Sep-1935 5214 Humboldt center of Dry Lagoon, S of Orick Comment
  CAS-BOT-BC114984  Carex viridula H. E. Parks 1935-9-1 5214 Humboldt Abundant in center of Dry Lagoon, south of Orick. Comment
  CDA33171  Carex viridula subsp. viridula Gordon Leppig 1999-10-3 1258 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  UCR160739  Castilleja George K. Helmkamp, E. A. Helmkamp 2001-7-8 7015 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  CAS-BOT-BC249131  Castilleja affinis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  UC1196741  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
  UC1196862  Castilleja affinis subsp. affinis Joseph P. Tracy 1908-6 2812 Humboldt opposite Buck Mountain; North Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS32452  Castilleja affinis subsp. litoralis Peter H. Raven 1963-5-15 18374 Humboldt about 1.5 mi s Trinidad; Luffenholz Beach Comment
  JEPS35843  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 8989 Humboldt just n Table Bluff lighthouse (s end of Humboldt Bay); Humboldt Bay Comment
  SBBG52997  Castilleja affinis subsp. litoralis J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  UC1222830  Castilleja affinis subsp. litoralis Joseph P. Tracy 1950-6-8 18749 Humboldt 1 mi e Cape Mendocino (s slope of Bear River Ridge, near Capetown); Cape Ridge, Bear River Ridge 152 Comment
  HSC95070  Castilleja ambigua subsp. humboldtiensis Lila Tauzer 2002-5-3 45 Humboldt Arcata Marsh 0 Comment
  JEPS9134  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  UC1238991  Castilleja applegatei subsp. martinii Freed W. Hoffman 1949-7-15 3009 Humboldt e slope Mule Slide (a little s of Blue Ridge); North Coast Ranges, Mt. Lassic Area Comment
  RSA132832  Castilleja applegatei subsp. pinetorum Peter H. Raven, Sidney R. Snow 1958-7-20 13636 Humboldt 2 miles south of jct. of Friday Ridge Road on Titlow Hill Road, near Grouse Mountain Comment
  CAS-BOT-BC255519  Castilleja applegatei var. pinetorum Duart V. Brown 1947-4-2 30 Humboldt Hillside just above river, near Sweed Creek, Trinity River 426 Comment
  JEPS15207  Castilleja exserta subsp. exserta R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quad. Comment
  HSC49514  Castilleja exserta subsp. latifolia R. York 1979-5-18 292 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  CAS-BOT-BC244878  Castilleja miniata Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC102069  Castilleja miniata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 971 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC55840  Castilleja miniata G. L. Clifton, Griswold 1979-7-25 10790 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC99292  Castilleja miniata Jimerson, J. Pageau 1979-8-10 718 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  UC1196860  Castilleja miniata Joseph P. Tracy 1927-8-22 8337 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  JEPS9795  Castilleja pruinosa Joseph P. Tracy 1933-7-11 12674 Humboldt Horse Mountain 1432 Comment
  RSA254787  Castilleja pruinosa Thomas W. Nelson 1974-5-30 1349 Humboldt Growing along the Hoopa-Redwood Valley Road. Comment
  HSC44432  Ceanothus arcuatus Brad Klipfel 1975-5-24 634 Humboldt Horse Mtn. Comment
  UCR101304  Ceanothus foliosus subsp. foliosus L. C. Wheeler 1959-8-1 7619 Humboldt Queens Peak Mine Comment
  CAS-BOT-BC49656  Ceanothus foliosus var. foliosus Carl B. Wolf 1941-7-29 11093 Humboldt Along the Redwood Highway, 7/10 mi. no. of Jnct. with State Highway #1 from Ft. Bragg. 60 Comment
  HSC41837  Ceanothus incanus Tom Duebendorfer 1977-4-23 8 Humboldt 2.5 mi S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  CAS-BOT-BC63676  Ceanothus integerrimus L. B. Kildale 1927-7-17 3751 Humboldt Bug Creek. 792 Comment
  UC1070740  Ceanothus integerrimus A. E. Wieslander 1931-5-19 202 Humboldt Near Orleans Hoopa quad., Klammath Forest Comment
  SEINET12211379  Ceanothus integerrimus var. californicus F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -306 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC36673  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-5-8 7 .8575 Humboldt Mattole Valley, 3 mi W of Honeydew 107 Comment
  UC203969  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-5-1 4902 Humboldt towards McBrides; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC101658  Ceanothus parryi J. P. Smith, J. O. Sawyer 2011-4-23 13118 Humboldt Along Salmon Creek Rd., 4.6 miles from its junction with U.S. 101. 290 Comment
  HSC36677  Ceanothus parryi R. Sutherland 1975-5-5 7 .5575 Humboldt Near Ettersburg Rd. 457 Comment
  HSC36680  Ceanothus parryi R. Sutherland 1975-5-2 7 .2575 Humboldt Near old Hwy. 101 116 Comment
  HSC37084  Ceanothus parryi R. Sutherland 1975-5-30 4 .30575 Humboldt 320 Comment
  POM283003  Ceanothus parryi Lyman Benson 1928-7-12 394 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 76 Comment
  UC18401  Ceanothus parryi Bolander Jun 1867 6572 bis Humboldt Comment
  CAS-BOT-BC52044  Ceanothus prostratus Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  HSC43189  Ceanothus pumilus R. Sutherland 1976-4-24 1 .24476 Humboldt 518 Comment
  UC1094482  Ceanothus pumilus R. E. Nelson 1955-5-14 162 Humboldt about 5 mi w Miranda; Quad. 29-C-2, w of Miranda 762 Comment
  UC902165  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17526 Humboldt along Trinity Highway (Willow Creek Canyon); Willow Creek Canyon 609 Comment
  CAS-BOT-BC52216  Ceanothus thyrsiflorus Doris K. Kildale 1926-4-11 1753 Humboldt Blue Slide in the Van Duzen River Comment
  CAS-BOT-BC52223  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11089 Humboldt Summit of Trinidad Head 45 Comment
  CAS-BOT-BC52983  Ceanothus thyrsiflorus H. E. McMinn 1922-8-4 334 Humboldt Along Van Duzer River, by redwoods Comment
  CAS-BOT-BC52997  Ceanothus thyrsiflorus Harold Paul Olmo 1934-6-8 s.n. Humboldt 5 miles n. of Trinidad Comment
  HSC76579  Ceanothus thyrsiflorus John Demarinis 1981-7-21 873 Humboldt Near Table Bluff 38 Comment
  JEPS42171  Ceanothus thyrsiflorus W. L. Jepson 1932-8-6 16492 Humboldt Weott Comment
  UC774513  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11089 Humboldt summit Trinidad Head; Summit of Trinidad Head 45 Comment
  UCD112726  Ceanothus thyrsiflorus J. E. Street 1950-5-28 s.n. Humboldt Eureka. Comment
  OBI44963  Ceanothus thyrsiflorus var. thyrsiflorus Midred J. Cady 1938-7-14 s.n. Humboldt Near Trinidad Comment
  CAS-BOT-BC52870  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road, 5 miles north and 2 miles east of Boynton Prairie 630 Comment
  HSC18355  Ceanothus velutinus Francis Winter 1960-4-24 Humboldt 2 mi. SE of Schoolhouse Peak 838 Comment
  HSC90080  Ceanothus velutinus Grefsrud, Reed, Rohmer 1990-4-28 83 Humboldt 200 yds E of Willow Creek proper 220 Comment
  POM89164  Ceanothus velutinus Joseph P. Tracy 1919-9-24 5295 Humboldt Trinity Summit 1829 Comment
  UC582527  Centaurea X moncktonii J. C. Tario Jr. 1933-10-23 Humboldt near Orick (Davison's field) 60 Comment
  RSA167190  Centaurea cyanus Joseph P. Tracy 1948-8-8 18097 Humboldt Roadside halfway between Bridgeville and head of S. Yager Comment
  CDA15840  Centaurea diffusa P. Haggard 1999-10-18 PDR 1170400 Humboldt North Coast; near Blue Lake. 0 Comment
  RSA69417  Centaurium muehlenbergii F. W. Peirson 1923-7-10 3803 Humboldt Garberville. Comment
  HSC98060  Cephalanthera austiniae Cara Witte 2007-7-11 495 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  UC1196469  Cephalanthera austiniae Stuart Harris 1936-6-12 3300 Humboldt Chalk Mt. 609 Comment
  UC8230  Cerastium arvense Mrs. M. H. Manning Apr. 1899 Humboldt Hoopa Valley Comment
  CAS-BOT-BC384903  Cerastium arvense Alice Eastwood; John Thomas Howell 1937-6-24 4862 Humboldt Road to Horse Mt. Comment
  UC1198313  Cerastium arvense Joseph P. Tracy 1900-6-5 845 Humboldt bluffs back of Bucksport (at Eureka); Northern Coast Region, Eureka 0 Comment
  UCD98024  Cerastium glomeratum Linda M. Barker 1976-4-13 1381 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC4103  Cerastium glomeratum S. R. Johnson 1965-4-16 43 Humboldt 1.5 mi. N of Luffenholtz Beach. Comment
  POM187538  Cercis occidentalis Marcus E. Jones 1931-7-16 28996 Humboldt Junction, East of Arcata. Comment
  UC1198736  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
  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
  UC666857  Cercocarpus ledifolius var. ledifolius Joseph P. Tracy 1935-7-30 14362 Humboldt Salmon Summit, about 2 mi sw of the top of the mountain Salmon Summit 1767 Comment
  CAS-BOT-BC85657  Chamaecyparis lawsoniana G. A. Coleman 1901-7-25 s.n. Humboldt Near head of Supply Creek, Hoopa Indian Reservation Comment
  HSC56952  Chamaecyparis lawsoniana Overton, Butler 1979-7-23 9456 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  RSA13571  Chamaecyparis lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762 Comment
  SEINET5334897  Chamaecyparis lawsoniana W. D. Billings 1940-6-25 1350 Humboldt Cedar Creek, 35 miles east of Arcata Comment
  UC1198974  Chamaesyce serpyllifolia Joseph P. Tracy 1931-10-12 9728 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  CAS-BOT-BC68261  Cheilanthes gracillima Doris K. Kildale 1926-9-5 2649 Humboldt Lasseck's Peaks - Signal Peak 1791 Comment
  HSC76323  Cheilanthes gracillima Denis Kearns 1981-7-21 304 Humboldt Near Whiteys Peak 1585 Comment
  HSC996  Cheilanthes gracillima D. E. Anderson 1965-4-24 3539 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  JEPS59693  Chenopodium ambrosioides Joseph P. Tracy 1934-8-4 13552 Humboldt Willow Creek Trinity River Valley 152 Comment
  BLMAR526  Chimaphila menziesii Jennifer Wheeler 2009-6-23 526 Humboldt King range, On King Peak road Comment
  UC1197596  Chimaphila menziesii Joseph P. Tracy 1911-7-7 3439 Humboldt ridge n. Willow Creek (between Willow & Campbell Creeks, Brannan Mt., near summit); Northern Coast Ranges, Brannan Mt. 1219 Comment
  RSA12553  Chimaphila menziesii C. B. Wolf 1934-7-2 5886 Humboldt Snow Camp. Mountains east of Korbel. 1372 Comment
  HSC33063  Chimaphila umbellata Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1251 Humboldt Horse Mtn. area, W of microwave tower 1220 Comment
  HSC41338  Chimaphila umbellata Brad Klipfel 1974-9-7 562 Humboldt Horse Mtn., above E fork of Willow Creek Comment
  HSC54228  Chimaphila umbellata Griswold, Butler 1979-7-12 7294 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  CAS-BOT-BC452227  Chimaphila umbellata Volney Rattan 1878-6-1 s.n. Humboldt North of Mad River Comment
  UC1225900  Chimaphila umbellata Joseph P. Tracy 1947-7-9 17856 Humboldt Horse Mt. 1432 Comment
  CAS-BOT-BC36487  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old Coast Road - at Thorn 304 Comment
  HSC74452  Chrysolepis chrysophylla Gail Newton 1980-8-10 2002 Humboldt Near Blake Mtn. 1798 Comment
  HSC99490  Chrysolepis chrysophylla var. chrysophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 149 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  OBI14344  Chrysolepis chrysophylla var. minor Carl B. Wolf 1937-9-13 9338 Humboldt North Coast range, summit of Grouse Mt Comment
  UC177256  Cicendia quadrangularis Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3583 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC36262  Cicuta douglasii John Rehling 1974-8-20 24 Humboldt Big Lagoon Bog Comment
  JEPS12245  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Fields Landing (near Still Ranch) 6 Comment
  HSC36083  Cicuta douglasii Michael Chase 730506 .4 Humboldt W end of Big Lagoon Comment
  HSC36440  Cicuta douglasii John Rehling 1974-7-8 9 Humboldt Big Lagoon Bog Comment
  SD58271  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt Marsh south of Salmon Creek Comment
  UC642260  Cicuta douglasii Joseph P. Tracy 1927-8-22 8345 Humboldt near High Prairie (on Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1714534  Circaea alpina subsp. pacifica Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  BLMAR404  Cirsium douglasii var. breweri Clara Sander 2005-7-1 404 Humboldt Horse Mtn, Titlow hill road: growing along the roak banks 1066 Comment
  UC34641  Cirsium douglasii var. douglasii Chesnut and Drew 1887-7-28 Humboldt Grouse Creek Comment
  UC176304  Cirsium occidentale var. candidissimum Joseph P. Tracy 1912-7-26 3854 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC35706  Cirsium occidentale var. venustum Thomas W. Nelson, B. Reinhardt 1975-7-30 2122 Humboldt Beside private road to Pilot Rock Comment
  UC91789  Cirsium remotifolium var. odontolepis W. W. Price 1890-7-3 Humboldt Comment
  CDA1548  Cirsium remotifolium var. rivulare E. C. Whitney 1968-7-25 s.n. Humboldt Larabee Valley State Hwy 36, 0.5 mi. E of bridge over the South Fork of the Van Duzen River. 0 Comment
  CAS-BOT-BC285770  Cirsium vulgare Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon Comment
  JEPS43688  Clarkia amoena subsp. huntiana Milo S. Baker 1923-7-20 68 Humboldt Redwood House North Coast Comment
  CAS-BOT-BC164180  Clarkia concinna Harley P. Chandler 1901-6-1 1325 Humboldt Hupa Indian Reservation 152 Comment
  UC1198510  Clarkia concinna subsp. concinna Joseph P. Tracy 1936-6-17 14944 Humboldt lower foothills of nw slope Buck Mountain 762 Comment
  UC1222857  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1950-6-15 18806 Humboldt 7 mi n Harris; Mail Ridge Comment
  JEPS43640  Clarkia gracilis subsp. sonomensis Lincoln Constance 1934-5-23 618 Humboldt upper end Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  CAS-BOT-BC172516  Clarkia purpurea subsp. quadrivulnera Alice Eastwood; John Thomas Howell 1937-6-22 4722 Humboldt Near Harris Comment
  UC1071917  Clarkia purpurea subsp. quadrivulnera H. and M. Lewis 1947-6-14 418 Humboldt 0.1 mi e Van Duzen River Bridge (4.129) (Highway 36) Comment
  RSA297004  Clarkia purpurea subsp. viminea Lincoln Constance 1934-5-23 619 Humboldt South Fork Eel River: upper end of Look Prairie 366 Comment
  HSC36519  Claytonia exigua subsp. exigua J. D. Ackerman, A. M. Montalvo 1973-3-27 48 Humboldt 1.5 mi. N of Manila 6 Comment
  CAS-BOT-BC439933  Claytonia perfoliata subsp. mexicana Doris K. Kildale 1926-3-21 1583 Humboldt Kneeland Prairie - summit 853 Comment
  JEPS43376  Claytonia perfoliata subsp. mexicana Lincoln Constance 1934-5-26 681 Humboldt North Dyerville Flat grove South Fork Eel River, Bull Creek (near Founders' Tree) 48 Comment
  SEINET181192 Image available Claytonia perfoliata subsp. perfoliata Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15107 Humboldt Bolling Grove State Park. Comment
  UC673002  Claytonia perfoliata subsp. perfoliata Joseph P. Tracy 1927-5-15 8036 Humboldt near South Fork; Trinity River Valley 182 Comment
  CHSC10779  Claytonia sibirica Lowell Ahart 1968-6-1 Humboldt Near Pepperwood. 45 Comment
  UC162974  Claytonia sibirica Joseph P. Tracy 1907-5-1 2557 Humboldt Eureka; Northern Coast Region 0 Comment
  UC535735  Claytonia sibirica Eleanor Armstrong 1162 Humboldt Richardson Grove Comment
  CAS-BOT-BC443899  Claytonia sibirica Joseph P. Tracy 1937-7-2 15388 Humboldt Happy Camp Mountain (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  HSC89609  Claytonia sibirica M. Roantree 1985-5-24 54 Humboldt NW side of Trinidad Head, along trail Comment
  SFV1197  Claytonia sibirica J. Turner, F. M. Ball 1962-7-9 s. n. Humboldt Beside scenic Redwood Highway about 2 miles south of junction with freeway, 40 miles north of Mendocino-Humboldt county line. Comment
  UCD100897  Claytonia sibirica James P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  UC183678  Clematis ligusticifolia Joseph P. Tracy 1912-8-3 3963 Humboldt opposite Buck Mt. (Dinsmore's Ranch, valley of Van Duzen R.); Northern Coast Ranges, valley of Van Duzen R., Dinsmore's Ra 762 Comment
  CAS-BOT-BC499336  Clintonia andrewsiana M. S. Jussel 1931-5-2 s. n. Humboldt 20 miles N. of Garberville Comment
  CAS-BOT-BC499387  Clintonia andrewsiana Henry M. Pollard 1936-4-1 s. n. Humboldt Unspecified, Steep Ravine Comment
  HSC15447  Clintonia andrewsiana D. E. Anderson 1963-5-25 2478 Humboldt 4 mi. N of Capetown Comment
  UC3541  Clintonia uniflora Mrs. M. H. Manning 1901-1 Humboldt Trinity Summit Comment
  CAS-BOT-BC499961  Clintonia uniflora L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp 1219 Comment
  HSC97486  Collinsia grandiflora C. Witte 2007-5-8 10 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  JEPS14933  Collinsia grandiflora H. E. Parks and J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley 762 Comment
  HSC39196  Collinsia greenei D. E. Anderson, J. P. Smith 1971-7-6 - 1329 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  UC366914  Collinsia linearis V. Rattan Jun 1879 Humboldt Hoopa Valley Comment
  UC1196753  Collinsia linearis Joseph P. Tracy 1935-7-30 14376 Humboldt near top of Salmon Summit Salmon Summit 2072 Comment
  HSC39060  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-5-31 2640 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC39617  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-6-15 2721 Humboldt Along old trail above Alder Springs 1585 Comment
  UC582464  Collinsia parviflora Joseph P. Tracy 1933-7-13 12567 Humboldt Hoopa Mountain near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  HSC60032  Collinsia rattanii M. A. Baker 1978-5-6 504 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC48850  Collomia grandiflora Brad Klipfel 1973-7-15 208 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1197856  Collomia grandiflora Joseph P. Tracy 1933-8-30 13051 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC906687  Collomia grandiflora Joseph P. Tracy 1944-7-3 17485 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS71031  Collomia grandiflora Milo S. Baker 1923-7-20 37 Humboldt head Yager Creek Comment
  UC534985  Collomia heterophylla Harold E. Parks May 1933 1152 Humboldt Spruce Cove Trinidad 76 Comment
  RSA71937  Collomia heterophylla F. W. Peirson 1926-7-12 7035 Humboldt Redwood Creek bottom landes below bridge, Orick Comment
  UC1197842  Collomia heterophylla Joseph P. Tracy 1929-7-4 8611 Humboldt in open places French Camp 1066 Comment
  CAS-BOT-BC180242  Comandra umbellata subsp. californica Joseph P. Tracy 1927-5-15 8038 Humboldt Trinity River Valley, near the S Fork 182 Comment
  JEPS109236  Coptis laciniata Stephanie Puentes 2008-4-23 Humboldt Vicinity Larabee Valley, along Horse Creek about 1 mile upstream from Hwy 36. Comment
  HSC36648  Corallorhiza maculata J. D. Ackerman 1975-6-4 444 Humboldt Redwood National Park: 4 mi. E of Hwy. 101 on Bald Hills Rd. 335 Comment
  HSC76613  Corallorhiza maculata Teresa Prendusi 1981-6-9 185 Humboldt Near Cedar Camp 1268 Comment
  RSA20798  Corallorhiza maculata Carl B. Wolf 1937-8-13 9263 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  UC1222188  Corallorhiza mertensiana Joseph P. Tracy 1950-7-2 18959 Humboldt 6 mi ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC78076  Cordylanthus maritimus subsp. palustris Craig Martz 1984-7-18 204 Humboldt Samoa Peninsula, about 100 feet E of paved parking area at the junction of Hwy. 255 and Vance Ave, upper edge of marsh. Comment
  UC1191855  Cordylanthus maritimus subsp. palustris Malcolm A. Nobs and S. Galen Smith 1949-8-3 1200 Humboldt ca 2 mi n Eureka (marshes bordering bay); Humboldt Bay Comment
  RSA43897  Cordylanthus tenuis subsp. viscidus H. M. Pollard 1947-8-28 s.n. Humboldt Near old placer mine, north of Forest Service Station, Orleans. Comment
  CAS-BOT-BC101141  Corethrogyne filaginifolia Alice Eastwood 1923-8-14 12316 Humboldt Samoa Comment
  UC1199415  Corethrogyne filaginifolia Joseph P. Tracy 1909-7-18 3016 Humboldt Humboldt Bay Comment
  UC604617  Corethrogyne filaginifolia Joseph P. Tracy 1938-7-15 16059 Humboldt at Bucksport; Eureka 6 Comment
  UC205636  Cornus nuttallii Joseph P. Tracy 1919-9-14 5213 Humboldt near its mouth Willow Creek - Northern Coast Ranges, Willow Creek (a tributary of Trinity) Comment
  CAS-BOT-BC212181  Cornus sericea Joseph P. Tracy 1929-8-18 8653 Humboldt Dinsmore's Ranch on Van Duzen River opposite Buck Mountain 670 Comment
  HSC58225  Cornus sericea subsp. sericea Walter Overton 1979-8-1 12368 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1051594  Cornus sericea subsp. sericea Joseph P. Tracy 1948-9-2 18201 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  HSC40243  Cornus sessilis J. P. Smith, J. O. Sawyer 1976-5-2 8619 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  UC1175128  Corylus californica P. C. Everett and E. K. Balls 1959-10-24 23956 Humboldt 4.7 mi S from Bluff Creek (Hwy 96 from Orleans to Weitchpec) 121 Comment
  CAS-BOT-BC180311  Corylus cornuta subsp. californica L. B. Kildale 1926-3-26 1647 Humboldt near junction with highway, on old Fortuna road 15 Comment
  HSC76056  Corylus cornuta subsp. californica Overton, Butler 1979-8-2 12590 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC166079  Cotula australis J. P. Tracy 1900-5-26 804 Humboldt Eureka Comment
  CHSC19513  Cotula coronopifolia J. F. Knezevich 1968-5-14 431 Humboldt Collected 13 miles south of Ferndale at Cape Mendocino. Comment
  HSC5430  Cotula coronopifolia Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  CAS-BOT-BC291344  Cotula coronopifolia Doris K. Kildale 1925-9-26 1366 Humboldt Mouth of Mad River Comment
  HSC57409  Crepis acuminata G. L. Clifton, Griswold 1979-7-26 10167 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  UC581731  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  CDA18216  Crepis capillaris G. D. Barbe, T. C. Fuller 1974-6-17 1844 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  JEPS27144  Crepis capillaris H. E. Parks August, 1941 24189 Humboldt vicinity of Trinidad Comment
  UCR122363  Crepis capillaris George K. Helmkamp, E. A. Helmkamp 2001-7-8 6992 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  CAS-BOT-BC291485  Crepis capillaris Carl B. Wolf 1927-8-28 1188 Humboldt Salt Marsh Eureka Bay on road to Arcata Comment
  UC538046  Crepis occidentalis E. B. Babcock 1932-6-23 403 Humboldt near Bridgeport (saddle of ridge above Art Renfroe's place) Comment
  HSC72961  Crepis pleurocarpa Gail Newton 1980-7-14 1481 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC74027  Crepis pleurocarpa Gail Newton 1980-7-11 1313 Humboldt Near Red Mtn. 1341 Comment
  POM356344  Crepis setosa H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  HSC91877  Crocosmia X crocosmiiflora E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, picnic area near parking lot for Ceremonial Rock Comment
  HSC58011  Cryptantha affinis G. L. Clifton 1979-7-31 11808 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC55910  Cryptantha flaccida J. P. Tracy 1903-5-22 1880 Humboldt Alder Point Bridge Eel River 152 Comment
  JEPS67641  Cryptantha intermedia Harley P. Chandler Jun 1901 1302 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC33754  Cryptantha leiocarpa A. Montalvo 1975-5-24 284 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  BLMAR607  Cryptantha leiocarpa Jennifer Wheeler 2011-4-1 607 Humboldt King range, growing throughout the Mattole Beach duns 0 Comment
  UC164379  Cryptantha torreyana Harley P. Chandler Jun 1901 1541 Humboldt Klamath River North Coast Ranges 304 Comment
  RSA758117  Cupressus macrocarpa Doug Goldman 2004-12-20 2982 Humboldt Open area with sandy loam soil, just below the edge of a NW-facing bluff overlooking the beach and a few hundred feet to N. of the table Bluff lighthouse facility. 43 Comment
  UC562671  Cuscuta californica Joseph P. Tracy Jul 16 1930-Jul 19 1930 8912 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  JEPS94283  Cuscuta campestris Vernon Oswald and Lowell Ahart 1997-9-4 8847 Humboldt Big Lagoon County Park at the sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  UC906746  Cuscuta campestris Harry B. Tucker Oct 1946 Humboldt 6 Comment
  UC35079  Cuscuta indecora Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  RSA249509  Cuscuta salina R. F. Thorne, P. C. Everett 1965-8-8 35280 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  UC562297  Cycladenia humilis var. humilis Joseph P. Tracy 1935-7-29 14349 Humboldt Devil's Backbone - ridge connecting Trinity Summit with Salmon Summit; Devil's Backbone 1676 Comment
  HSC10939  Cynodon dactylon D. E. Anderson 1965-6-10 3788 Humboldt Along Hwy. 101 in south part of Eureka Comment
  UC54747  Cynoglossum grande Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5428 Humboldt between Hubbard's Station and Elk Prairie; North Coast Ranges Comment
  UCD60124  Cynosurus cristatus A. H. Murphy 1949-6-29 s. n. Humboldt ca. 1.5 miles north of Loleta, H. Perrots Ranch, Table Bluff. Comment
  CAS-BOT-BC190380  Cynosurus echinatus H. E. Parks; Joseph P. Tracy 1933-6-11 12542 Humboldt Northern Coast Ranges. Near Miranda. 152 Comment
  UC1145094  Cynosurus echinatus Joseph P. Tracy 1950-6-23 18865 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); Dobbyn Creek 213 Comment
  CAS-BOT-BC114699  Cyperus bipartitus Henry M. Pollard 1946-8-22 s.n. Humboldt Wallathrone Riffle, Klamath River. Orleans Region. Comment
  UCR3545  Cyperus eragrostis David Whistler, H. M. Whistler 1964-7-29 640729- 2 Humboldt North Coast Range, US 101, [South Fork Eel River] across the street from Myers Flat Store 63 Comment
  HSC96342  Cyperus esculentus Gordon Leppig 2004-8-25 2195 Humboldt E edge of Eel River at Holmes Flat Comment
  CAS-BOT-BC114059  Cyperus squarrosus Joseph Prince Tracy 1931-9-7 9662 Humboldt Damp sand bars along river. Trinity River Valley at Willow Creek. 152 Comment
  HSC55069  Cystopteris fragilis G. L. Clifton, Griswold 1979-7-31 11649 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC74128  Cystopteris fragilis R. York 1980-5-23 621 Humboldt Near Buck Mtn. 1524 Comment
  HSC97625  Cystopteris fragilis Cara Witte 2007-5-31 161 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  HSC98541  Cystopteris fragilis Cara Witte 2008-6-9 704 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1418 Comment
  RSA183569  Cytisus monspessulanus R. I. Bonn 1965-3-19 8 Humboldt 1/2 mi. south of G.P. mill on Samoa Rd. Comment
  HSC34810  Cytisus scoparius David Peters 1975-4-9 2 Humboldt .2 mi. E of Old Arcata Rd. on Jacoby Cr. Rd. Comment
  HSC70783  Dactylis glomerata Gail Newton 1980-7-23 1749 Humboldt Near Packsaddle Ridge 1463 Comment
  UC1152021  Danthonia californica Joseph P. Tracy 1951-6-26 19571 a Humboldt Snow Camp and Twin Lakes vicinity Comment
  UC526708  Danthonia californica Joseph P. Tracy 1930-7-10 8860 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  UCD60692  Danthonia californica var. americana A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3474 Humboldt 4 miles north of Bridgeville. Comment
  HSC98849  Danthonia unispicata Cara Witte 2008-7-11 870 Humboldt Horse Mountain Botanical Area. 1/2 mi. south from intersection of National Forest 1, Forest Service Roads 6N38 and 6N36. 1413 Comment
  JEPS12210  Datura stramonium W. L. Jepson 1932-7-29 16436 Humboldt Dyerville 88 Comment
  UC1197352  Daucus pusillus Joseph P. Tracy 1901-8-2 1248 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC9032  Delphinium decorum subsp. tracyi Doris K. Kildale 1928-5-19 5213 Humboldt Chalk Mountain Comment
  UC183704  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4171 Humboldt near the summit Northern Coast Ranges, Buck Mountain 1676 Comment
  UC467723  Delphinium decorum subsp. tracyi Mrs. M. H. Manning 1902-3-31 Humboldt open gravelly place across supply creek <on> west side of road Hupa Comment
  CAS-BOT-BC10311  Delphinium hesperium Harley Pierce Chandler 1901-6-1 1410 Humboldt Kalmath River 304 Comment
  RSA44425  Delphinium hesperium E. K. Balls, Lee W. Lenz 1956-6-12 21665 Humboldt 9.1 miles NE from Blue Lake along Hwy 299, Arcata to Willow Creek. Comment
  OBI10845  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Trinity River Valley at Willow Crk 152 Comment
  HSC98907  Delphinium nudicaule Cara Witte 2007-5-23 106 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  RSA400116  Delphinium nuttallianum M. A. Baker 1979-6-27 933 Humboldt At head of Oregon Creek. Comment
  RSA125699  Delphinium polycladon E. K. Balls 1957-5-25 22603 Humboldt 4.5 miles SW of Dinsmores, Hwy 36. 823 Comment
  CAS-BOT-BC121964  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  CAS-BOT-BC121969  Delphinium trolliifolium Carl B. Wolf 1937-6-14 8827 Humboldt 1 1/2 mi. N of Kneeland Prairie 822 Comment
  HSC24424  Delphinium trolliifolium R. Spellenberg 1965-6-14 1131 Humboldt 3.5 mi. S of Kneeland, 1.5 mi. N of junction with Barry Rd. Comment
  JEPS102996  Delphinium trolliifolium R. Raiche, K. Zadnik, and H. Forbes 1991-6-13 136 Humboldt 39 mi E of Rio Dell (on Hwy 36) 896 Comment
  UC1196335  Delphinium trolliifolium Joseph P. Tracy 1946-6-15 17562 Humboldt foothills of Horse Mountain 1066 Comment
  CDA14362  Deschampsia cespitosa P. Haggard 1996-7-8 s.n. Humboldt North Coast; North Coast Railroad right-of-way, Eureka. 0 Comment
  HSC9588  Deschampsia cespitosa J. A. Waller 1965-5-16 46 Humboldt Humboldt Bay. Comment
  CAS-BOT-BC194298  Deschampsia cespitosa subsp. cespitosa David D. Keck 1938-8-5 4773 Humboldt Big Lagoon Comment
  RSA10094  Deschampsia danthonioides Joseph P. Tracy 1932-7-14 10538 Humboldt Klamath Mountains, Trinity Summit; At Corral Prairie 1524 Comment
  UC1131441  Deschampsia danthonioides H. S. Yates 1936-6-17 5718 Humboldt Burr Valley South Fork Peak Quad., Burr Valley Comment
  UC1152018  Deschampsia danthonioides Joseph P. Tracy 1951-6-21 19531 Humboldt back of Everett Beck ranch house Hydesville (bed of former Goose Lake) Comment
  UC187272  Deschampsia danthonioides Joseph P. Tracy 1911-7-7 3379 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
  HSC24253  Deschampsia elongata D. E. Anderson 1970-5-21 5081 Humboldt Scotia bluffs. Comment
  HSC97565  Deschampsia elongata Cara Witte 2007-6-7 223 Humboldt Along National Forest 1. Approximately 1 mile north of cattle guard. Comment
  POM207194  Deschampsia elongata Joseph P. Tracy 1901-4-26 1043 Humboldt Immediate vicinity of Eureka 0 Comment
  POM365046  Deschampsia elongata Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek- near Orleans. Comment
  CAS-BOT-BC201782  Deschampsia elongata Henry M. Pollard 1947-8-22 s.n. Humboldt Fontana's Fishing Lodge, nr. Orleans Comment
  UC1196304  Dicentra formosa Joseph P. Tracy 1939-7-9 16329 Humboldt Snow Camp 1402 Comment
  HSC36234  Dicentra formosa John Rehling 1975-5-8 64 Humboldt Behind H.S.U. Campus Comment
  SEINET12103158  Dicentra formosa J. P. Tracy 1950-1 18720 Humboldt Near Mountain Glen, 7 mi S of Ferndale 610 Comment
  UC1198186  Dichelostemma X venustum Joseph P. Tracy 1928-6-24 8468 Humboldt Valley of South Yager Creek 762 Comment
  HSC97967  Dichelostemma congestum Cara Witte 2007-7-2 392 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1406 Comment
  SD211495  Dichelostemma congestum Barbara Ertter, Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just West of Berry Summit on Highway 299 914 Comment
  UC1950449  Dichelostemma congestum Barbara Ertter with Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just W of Berry Summit on Hwy 299, open grassy S-facing slope Comment
  HSC3035  Dichelostemma ida-maia Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  RSA120194  Dichelostemma ida-maia S. S. Tillett 1956-7-6 622 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  HSC3026  Dichelostemma ida-maia William J. Ferlatte, B. D. Rogers 1966-6-15 2102 Humboldt Plympton Ranch 915 Comment
  RSA183023  Dichelostemma ida-maia Lee W. Lenz 1966-5-24 24658 Humboldt W of Berry Summit, US 299. 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
  RSA152373  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. 122 Comment
  UC1145032  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River, near Slate Creek 121 Comment
  CAS-BOT-BC150341  Diplacus aurantiacus E. C. Johnston 1931-8-1 s.n. Humboldt Klamath River to Arcata Comment
  SEINET13751974 Image available Diplacus aurantiacus H. E. Parks, S. T. Parks 1951-1 Humboldt Along bay shore near landing. Trinidad. Comment
  UC249509  Dipsacus sativus Joseph P. Tracy 1922-8-16 6105 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC602572  Dipsacus sativus Joseph P. Tracy 1937-8-3 15610 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  UC146198  Disporum hookeri Joseph P. Tracy 1908-6-9 2663 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CHSC68508  Disporum smithii Vernon H. Oswald 1997-4-10 8325 Humboldt Elk Head, north end of Trinidad State Beach. 30 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
  HSC9630  Distichlis spicata J. A. Waller 1965-5-21 48 Humboldt Salt Marsh off of Samoa Rd. Comment
  UC562751  Dodecatheon alpinum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8930 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (South Fork Mountain) 1676 Comment
  HSC55019  Dodecatheon jeffreyi Overton, Butler 1979-7-31 11426 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  RSA181633  Downingia elegans Doris K. Niles 1940-7-20 2 Humboldt Summit of Friday Ridge road, Grouse Mt. 1829 Comment
  UC1199493  Downingia willamettensis Joseph P. Tracy 1912-7-21 3781 Humboldt Alton Northern Coast Region 30 Comment
  RSA32864  Downingia yina A. A. Heller 1923-7-8 13771 Humboldt Near Fortuna Comment
  HSC74471  Draperia systyla Gail Newton 1980-7-23 1739 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC62878  Drosera rotundifolia J. M. DiTomaso 1979-4-22 910 Humboldt Big Lagoon, 8 mi. N of Trinidad. Comment
  HSC77997  Drymocallis rhomboidea D. K. Imper 1982-7-2 1412 Humboldt Near Connely Creek, N Fork 1493 Comment
  UC492180  Drymocallis rhomboidea Joseph P. Tracy 1927-5-14 8002 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC427987  Dudleya caespitosa Carl B. Wolf 1927-8-29 1222 Humboldt Coast so. of Cape Mendocino at Devils Gate Comment
  HSC91611  Dudleya farinosa E. Mackey 1986-6-16 Humboldt Patricks Point State Park Comment
  UC727117  Dudleya farinosa A. A. Heller 1924-7-10 16164 Humboldt near Trinidad (Moonstone Beach) Comment
  HSC7298  Dulichium arundinaceum D. E. Anderson 1963-9-29 2849 Humboldt Fish Lake Comment
  CAS-BOT-BC197063  Echinochloa crus-galli Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC112837  Eleocharis macrostachya Doris K. Kildale 1928-7-29 5934 Humboldt Kanman Pond, Bear River Ridge. 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
  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
  UCSB34194  Eleocharis parvula Kearns, Dennis 1979-8-24 Humboldt Near the Arcata Boat Launching Facility at the South end of "I" Street Comment
  HSC39907  Elymus glaucus J. P. Smith, Steve Selva 1970-6-30 4106 Humboldt Comment
  UC1103200  Elymus glaucus Joseph P. Tracy 1950-8-20 19327 1/2 Humboldt near Slate Creek; Klamath River 121 Comment
  HSC45112  Elymus glaucus subsp. glaucus R. Sutherland 1978-4-25 8 .25478 Humboldt 9 Comment
  RSA10016  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8215 Humboldt Stone Lagoon Comment
  SEINET12749296  Elymus glaucus subsp. virescens W. D. Billings 1940-6-22 1344 Humboldt 0.5 mile N of Trinidad. Comment
  UC526790  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  HSC9727  Elymus mollis subsp. mollis R. T. Forester 1963-4-30 41 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  UCD62561  Elymus repens R. Tofsrud 1949-7-1 Humboldt Ferndale. Comment
  UC185826  Elymus trachycaulus Joseph P. Tracy 1912-7-27 3885 Humboldt Kneeland Prairie Northern Coast Ranges of California 762 Comment
  CAS-BOT-BC204331  Elymus trachycaulus subsp. trachycaulus David D. Keck 1944-7-11 5491 Humboldt 3 mi. N. E. of Capetown 152 Comment
  UC526802  Elytrigia repens Joseph P. Tracy 1925-9-13 7267 Humboldt Eel River North Coast Ranges (mouth, on river bank) 6 Comment
  SDSU8810  Epilobium angustifolium subsp. circumvagum D. F. Howe 1961-8-1 3102 Humboldt 6 miles north of Trinidad on #101. Comment
  RSA39090  Epilobium angustifolium var. macrophyllum P. A. Munz 1948-8-15 12361 Humboldt 2 miles west of Hydesville Comment
  CDA30232  Epilobium brachycarpum M. K. Beyers, I. Shepardson 2009-9-13 257 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  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
  HSC55111  Epilobium ciliatum subsp. ciliatum G. L. Clifton 1979-7-31 11855 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC76621  Epilobium ciliatum subsp. ciliatum Teresa Prendusi 1981-5-7 117 Humboldt Near Slate Creek Butte 1158 Comment
  JEPS43830  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1936-8-8 17862 Humboldt Richardson Grove South Fork Eel River Comment
  RSA225519  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-13 14380 Humboldt 10 miles west of Willow Creek. Comment
  HSC103287  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-13 Humboldt Six Rivers National Forest, Denny Quad, Lower Trinity District, Groves Prairie. 1261 Comment
  JEPS31516  Epilobium densiflorum Joseph P. Tracy 1934-7-9 13352 Humboldt bed of dry pond Dobbyn Creek 152 Comment
  UC1198503  Epilobium densiflorum Joseph P. Tracy 1911-7-11 3509 Humboldt mouth of Supply Creek Northern Coast Ranges, Hoopa Valley 152 Comment
  UC630642  Epilobium hallianum Joseph P. Tracy 1939-5-30 16302 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 670 Comment
  HSC56949  Epilobium minutum Overton, Butler 1979-7-23 9447 Humboldt Near Horse Mtn., close to the town of Willow Creek 1295 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
  RSA0091002  Epilobium oreganum Dean Wm. Taylor 2006-8-31 19633 Humboldt UNDERWOOD MOUNTAIN: meadowy opening in forest above the Hog Ranch' site on the USGS map. 883 Comment
  CAS-BOT-BC171845  Epilobium septentrionale Joseph P. Tracy 1933-9-9 13075 Humboldt Along S. Fork of Eel River, vicinity of Garberville 121 Comment
  CHSC12021  Epilobium septentrionale R. N. Bowman 1971-9-12 52 Humboldt Located ca. 1.7 mi se of Myers Flat off of Hwy 101. Ca. 4 ft. above s fork Eel River on e bank. 1066 Comment
  POM134801  Epilobium septentrionale Carl Duncan 1920-9-22 s.n. Humboldt Hoopa Indian Reservation, Hoopa Valley Comment
  UCD106771  Epilobium septentrionale R. N. Bowman 1971-4-12 52 Humboldt Ca. 1.7 miles SE of Myers Flat off of Highway 101. Ca. 4 feet above S fork of Eel River on E bank. 1066 Comment
  JEPS60127  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River near Grizzly Creek Grizzly Creek; Van Duzen River 91 Comment
  HSC98903  Equisetum laevigatum Cara Witte 2007-7-25 580 Humboldt Forest Service Road 5N10. Approximately 2 miles south from intersection with Forest Service Road 5N41. 1290 Comment
  HSC36259  Equisetum telmateia subsp. braunii John Rehling 1974-8-19 19 Humboldt Along Cranell Rd. next to pasture, Trinidad Comment
  HSC91901  Equisetum telmateia subsp. braunii E. Mackey 1987-2-18 Humboldt Patrick's Point State Park, on trail to Wedding Rock Comment
  HSC9785  Eragrostis mexicana subsp. virescens J. P. Tracy 1931-9-7 9653 Humboldt Trinity River Valley, Willow Creek Comment
  UC249801  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1923-9-10 6545 Humboldt Trinity River Valley near South Fork; Northern Coast Ranges, Trinity River Valley, nr South Fork 182 Comment
  CAS-BOT-BC278517  Eragrostis pilosa var. pilosa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  HSC5492  Erechtites glomeratus J. W. Johnson 1961-9-10 1112 Humboldt Arcata, S of Dune 3 N, Christenson Farm, Samoa Pennisula Comment
  HSC81904  Eremogone congesta Thomas W. Nelson 1979-7-11 4994 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC97978  Erigeron aliceae Cara Witte 2007-7-8 449 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  CAS-BOT-BC293511  Erigeron annuus Henry M. Pollard 1947-8-21 s.n. Humboldt Ferrian Ranch, nr. Orleans Comment
  UC672190  Erigeron biolettii Frank W. Peirson 1923-7-9 3877 Humboldt Humboldt County State Park Eel River, Humboldt County State Park Comment
  CAS-BOT-BC296119  Erigeron foliosus var. confinis Harley P. Chandler 1901-6-1 1427 Humboldt Klamath River 243 Comment
  CAS-BOT-BC296114  Erigeron foliosus var. confinis Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans Comment
  CAS-BOT-BC300681  Erigeron foliosus var. mendocinus Alice Eastwood 1921-7-21 10660 Humboldt Vanduzen [Van Duzen] River Comment
  CAS-BOT-BC308847  Erigeron glaucus L. R. Abrams 1916-7-18 6136 Humboldt Trinidad Comment
  HSC93533  Erigeron glaucus Gordon Leppig 1998-6-22 840 Humboldt Dry Lagoon State Park 2 Comment
  UC726579  Erigeron glaucus A. A. Heller 1937-6-12 15915 Humboldt on the coast near the Whaling Station (Trinidad, foot of the grade leading up to the lighthouse on Trinidad Head.); Trinidad Head., Trinidad Comment
  JEPS109871  Erigeron maniopotamicus Dean W. Taylor 2007-7-11 20158 Humboldt 1.1 air miles NW of Board Camp Mountain, headwaters Boulder Creek, along Forest Road 4N38 1371 Comment
  SEINET4005694 Image available Erigeron philadelphicus O. M. Clark 1932-1 5312 Humboldt South Eureka. Comment
  CAS-BOT-BC214583  Erigeron philadelphicus Doris K. Kildale 1926-5-31 2023 Humboldt Miranda on South Fork of Eel River Comment
  SD56767  Erigeron philadelphicus Darley F. Howe 1963-7-8 3621 Humboldt 8.2 miles west of Bridgeville on California Highway 36. 89 Comment
  UCD20386  Erigeron philadelphicus K. Esau 1934-5-6 s.n. Humboldt Fort Seward. Comment
  UCSB15926  Erigeron philadelphicus Breedlove, Dennis 1962-6-8 Humboldt On U.S. Highway 101, 3 miles south of Orick Comment
  UC153939  Erigeron philadelphicus var. philadelphicus J. P. Tracy 1910-10-1 3162 Humboldt immediate vicinity Eureka 0 Comment
  UC34163  Erigeron philadelphicus var. philadelphicus Harley P. Chandler 1901-6-1 1402 A Humboldt North Coast Ranges, Klamath River 304 Comment
  HSC24402  Eriodictyon californicum J. O. Sawyer 1970-6-24 2224 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  JEPS27  Eriodictyon californicum Lincoln Constance 1934-6-15 887 Humboldt Summit of Grasshopper Peak; South Fork Eel River, Bull Creek Region 975 Comment
  HSC76606  Eriogonum compositum Teresa Prendusi 1981-7-21 280 Humboldt Near Whiteys Peak 1646 Comment
  JEPS57408  Eriogonum compositum var. compositum L. R. Heckard with T. I. Chuang 1968-7-5 1989 Humboldt 4 1/2 mi n along Mail Ridge road Harris Road (e of Garberville) Comment
  HSC26656  Eriogonum latifolium J. P. Smith 1971-10-6 4938 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS95110  Eriogonum latifolium Vernon Oswald and Lowell Ahart 1997-9-4 8853 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  RSA246713  Eriogonum latifolium Robert F. Thorne, Percy C. Everett 1965-8-5 35162 Humboldt Samoa Dunes. 3 Comment
  SBBG28255  Eriogonum latifolium H. E. Parks -Aug-1941 24198 Humboldt Little River Comment
  HSC17292  Eriogonum latifolium D. E. Anderson 1962-7-4 2248 Humboldt Luffenholtz Beach 5 mi. S of Trinidad along old Hwy. 101, 2 mi. N of mouth of Little River Comment
  RSA766119  Eriogonum latifolium Arthur Menzies 1961-9-3 s.n. Humboldt Samon Comment
  CAS-BOT-BC259538  Eriogonum luteolum var. luteolum Joseph P. Tracy 1938-8-14 16120 Humboldt South Fork of Trinity River: mountain slopes west of its mouth 304 Comment
  CAS-BOT-BC261498  Eriogonum nudum var. nudum L. R. Abrams 1916-7-11 6003 Humboldt Between Blocksberg and Bridgeville Comment
  HSC98667  Eriogonum nudum var. nudum Cara Witte 2007-6-19 296 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38 1254 Comment
  UC54704  Eriogonum nudum var. nudum Harley P. Chandler June, 1901 1491 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  POM273091  Eriogonum umbellatum var. argus H. M. Pollard 1946-8-28 s.n. Humboldt Near Summit of Orleans Mt. 1829 Comment
  UC302989  Eriogonum umbellatum var. goodmanii Joseph P. Tracy 1926-6-20 7640 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC146157  Eriogonum umbellatum var. goodmanii Joseph P. Tracy 1908-6 2918 Humboldt nw slope of Buck Mountain Northern Coast Ranges, Buck Mountain 1219 Comment
  HSC43081  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-31 261 Humboldt N Trinity Mtn. 1860 Comment
  HSC55136  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-8-1 12001 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC5590  Eriophyllum lanatum Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC44132  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3586 Humboldt Along W side of road N of Alder Springs, head of N Fork of Conley Creek 1280 Comment
  UC507068  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-5-21 E 34 Humboldt 1 mi n Garberville; South Fork of Eel River Comment
  BLMAR631  Eriophyllum lanatum var. arachnoideum Jennifer Wheeler 2011-6-15 631 Humboldt Lacks Creek, Bair road Comment
  UC176857  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1912-7-21 3768 Humboldt Alton Northern Coast Region of California Comment
  UCD132187  Eriophyllum lanatum var. arachnoideum James P. Smith 1973-5-26 6839 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  POM358035  Eriophyllum lanatum var. grandiflorum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3578 Humboldt West side of road north from Alder Spring, head of North Fork of Conley Creek 1463 Comment
  CDA5405  Eriophyllum staechadifolium var. artemisiifolium F. Wetherbee 1959-8-5 2914 Humboldt Cook property, Bear River. 0 Comment
  UC642240  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1938-8-20 16125 Humboldt Alton 30 Comment
  JEPS53543  Erysimum menziesii Joseph P. Tracy 1906-5-13 2452 Humboldt sand dunes of ocean beach Northern Coast Region, Humboldt Bay Comment
  HSC48866  Erysimum perenne Brad Klipfel 1973-6-10 61 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC153744  Erythranthe alsinoides Mrs. A. W. Kildale 1925-4-1 s.n. Humboldt Near Korbel Comment
  SEINET13693817 Image available Erythranthe dentata Noel H. Holmgren, Liew Fah Seong 1969-1 3613 Humboldt Prairie Creek Redwoods, in forest above coast near Del Norte County line Comment
  CAS-BOT-BC504306  Erythronium californicum Doris K. Kildale 1926-3-21 s.n. Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC502808  Erythronium oregonum Lena E. Bowley 1941-4-1 s.n. Humboldt unspecified Comment
  HSC15502  Erythronium revolutum Paul Shields May 1955 Humboldt Kneeland Comment
  HSC95188  Erythronium revolutum Gordon Leppig, Tony LaBanca 2003-5-23 1947 Humboldt PalCo land, Kneeland, THP 1-01-359HUM 720 Comment
  UC13823  Erythronium revolutum Harley P. Chandler June, 1901 1279 Humboldt Hupa Indian Reservation North Coast Ranges 1066 Comment
  UC159113  Erythronium revolutum J. P. Tracy May, 1911 Humboldt Kneeland Prairie Comment
  CAS-BOT-BC403032  Eschscholzia californica Carl B. Wolf 1937-6-14 8824 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  HSC16760  Eschscholzia californica Jack Rockwell 1962-4-29 37 Humboldt N bank of Van Duzen River, E of Hwy. 101 9 Comment
  UC1199359  Euchiton gymnocephalus Joseph P. Tracy 1938-6-15 15936 Humboldt vicinity Carlotta 30 Comment
  SEINET11855621  Euchiton gymnocephalus J. P. Tracy 1948-9-26 18232 Humboldt at S end of Fickle Hill, 6 mi SE of Arcata 610 Comment
  UCD132297  Euchiton sphaericus W. L. Jepson 1936-8-15 17898 Humboldt Carlotta, 2 miles east of. Comment
  HSC100665  Eunanus douglasii Carl C. Marshall Apr 1887 377 Humboldt Hoopa Valley, dry roadsides. Comment
  UC668181  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1935-5-24 13823 Humboldt woods 3 mi. s.e. of business district Eureka 91 Comment
Read comments
May 24 2013
  UC183758  Euphorbia crenulata Joseph P. Tracy 1912-7-27 3882 Humboldt Kneeland Prairie; Northern Coast Range 762 Comment
  JEPS51869  Euphorbia crenulata Harley P. Chandler Jun 1901 1457 Humboldt Bluff Creek; North Coast Ranges, Klamath River 304 Comment
  HSC76341  Eurybia radulina Michael Ericksen 1981-8-20 1075 Humboldt Near Van Duzen Public Campground 1000 Comment
  CAS-BOT-BC312211  Eurybia radulina Doris K. Kildale 1925-8-21 1312 Humboldt Head of South Yager Creek 914 Comment
  UC581766  Euthamia occidentalis Joseph P. Tracy 1927-10-8 8389 Humboldt Arcata Bottom 15 Comment
  CAS-BOT-BC310683  Euthamia occidentalis S. K. Harris; Charlotte Wilder 1938-9-7 s.n. Humboldt Bars of the Van Dusen River, above Blue Slide Comment
  UC620702  Euthamia occidentalis S. K. Harris, Mrs. C. M. Wilder 1938-9-7 879 Humboldt Bars of the Van Dusen River, above Blue Slide Comment
  HSC79456  Festuca arundinacea Kenneth Clark 1980-4-18 600 Humboldt Above Dead Man's Gulch 137 Comment
  UCD65870  Festuca californica subsp. californica P. B. Kennedy 1923-8-2 Humboldt Near grade Bluff Creek to Arcata. Comment
  BLMAR13  Festuca idahoensis Brad Barr June, 1982 13 Humboldt King range, HJ ridge Comment
  HSC73746  Festuca occidentalis M. A. Baker 1980-7-15 2950 Humboldt Near Whiting Ridge. 1341 Comment
  RSA10940  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  UC187114  Festuca occidentalis Joseph P. Tracy 1908-6 2705 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET200833  Festuca roemeri Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC278964  Festuca rubra Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC278969  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  UC1103704  Festuca subulata Joseph P. Tracy 1936-6-17 14945 Humboldt nw slope Buck Mountain 792 Comment
  UC249608  Foeniculum vulgare Joseph P. Tracy 1922-8 6104 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CHSC19723  Fragaria chiloensis Gary J. Stebbins 1970-2-22 11 Humboldt Patricks Point State Park. On ocean bluff. Comment
  HSC90467  Fragaria chiloensis Jean Hanson 1980-3-8 30 Humboldt Indian (Gunther) Island, in Humboldt Bay. W end of island, 200 ft. from SW shore Comment
  CAS-BOT-BC457928  Fragaria vesca subsp. californica Doris Kildale Gillespie 1980-5-10 656 Humboldt Shelter Cove, At base of coastal bluffs of Western beach, Point Delgada; Coastal Marine Terrace & Coastal Bluff 4 Comment
  HSC41295  Frangula californica subsp. occidentalis Brad Klipfel 1974-7-27 495 Humboldt Horse Mtn. Comment
  CAS-BOT-BC59961  Frangula purshiana W. R. Dudley 1899-6-21 s.n. Humboldt Above Scotia. Comment
  CAS-BOT-BC59965  Frangula purshiana A. A. Heller 1923-7-9 13775 Humboldt About 5 mi. e. of Arcata on the road to Blue Lake. Comment
  SD37645  Frangula purshiana Edith A. Purer 1933-5-10 3625 Humboldt none listed Comment
  CAS-BOT-BC217695  Fraxinus latifolia Doris K. Kildale 1926-4-18 1783 Humboldt Bridgeville 228 Comment
  SEINET5012890  Fraxinus latifolia Unknown 1995-4-26 1387 Humboldt Six Rivers Ntl Forest. Hwy 36, 2km W of town. Comment
  SEINET6694697 Image available Fraxinus oregona Joseph P. Tracy 1941-1 16814 Humboldt Lack pond; in Trinity River Valley, opposite mouth of Willow Creek Comment
  CAS-BOT-BC136029  Fritillaria affinis Doris K. Kildale 1928-5-19 5225 Humboldt Chalk Mountain Comment
  HSC98536  Fritillaria glauca Cara Witte 2008-6-9 698 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  SEINET4208042  Fumaria capreolata Richard R. Halse 2013-3-28 8767 Humboldt Eureka. By a Texaco station near 3543 Broadway St. (U.S. Hwy. 101); 0 6 Comment
  HSC100647  Galium Carl C. Marshall 76 Humboldt No data. Comment
  JEPS52710  Galium ambiguum subsp. ambiguum Lauramay T. Dempster and G. L. Stebbins Jr. 1963-7-9 3854 Humboldt along Hwy 36 about 1 mi w Mad River crossing (n-facing slope); Low Gap Sunday School 792 Comment
  CHSC31315  Galium aparine Mark Stopher 1980-6-4 84 Humboldt Along Elk River near Rte 101 bridge. 1 Comment
  HSC57438  Galium bifolium G. L. Clifton, Griswold 1979-7-26 10237 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2024 Comment
  UC1196093  Galium boreale subsp. septentrionale Joseph P. Tracy 1924-8-31 6839 Humboldt river at mouth of Bluff Creek; Klamath River 91 Comment
  JEPS52873  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3861 Humboldt 2.3 mi s Weott; Avenue of the Giants 60 Comment
  JEPS52844  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-10-27 3957 Humboldt along stream on road to Madrone Campground Redwood Highway, Richardson Grove Comment
  UC1177931  Galium muricatum Francia Chisaki and Gene B. Newcomb 1958-6-23 1164 Humboldt road to Shelter Cove 4 mi e junction with road to Ettersburg 579 Comment
  SEINET12514834  Galium nuttallii B. D. Rogers, W. J. Ferlatte 1966-6-15 2092 Humboldt Near Bridge ville. Comment
  UC1196101  Galium parisiense Joseph P. Tracy 1924-8-10 6801 Humboldt on river bar near Strong's Station (10 mi e of Carlotta); Northern Coast Ranges 60 Comment
  UC213506  Galium parisiense Joseph P. Tracy 1920-7-11 5343 Humboldt near Arcata (around Humboldt Bay); Northern Coast Ranges, Fickle Hill 304 Comment
  HSC34701  Galium porrigens var. porrigens Thomas W. Nelson 1974-8-24 1702 Humboldt Weitchpec, under highway bridge over Klamath River Comment
  HSC40955  Galium triflorum Linda M. Barker 1976-7-5 1649 Humboldt 3 mi. W of Arcata. Comment
  HSC58207  Galium triflorum Walter Overton 1979-8-1 12322 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC98132  Galium triflorum Cara Witte 2007-6-27 374 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1/2 mile south of intersection with 5N04 and 4N32E. 1425 Comment
  UC1196079  Galium triflorum Joseph P. Tracy 1930-7-16 8925 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1199115  Gamochaeta coarctata Joseph P. Tracy 1927-7-17 8264 Humboldt Butler Valley 152 Comment
  CAS-BOT-BC303391  Gamochaeta ustulata Joseph P. Tracy 1936-5-30 14834 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  CAS-BOT-BC303387  Gamochaeta ustulata Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt Trail 1524 Comment
  RSA296734  Gamochaeta ustulata J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just east of the drag strip. Comment
  CAS-BOT-BC188536  Garrya elliptica J. P. Tracy 1901-4-14 1030 Humboldt Sand Hills of Ocean Beach at Samoa, opposite Eureka Comment
  HSC8391  Garrya elliptica D. E. Anderson 1962-1-4 1908 Humboldt Lanphere's Comment
  SBBG22046  Garrya elliptica R. F. Thorne 1957-9-3 19023 Humboldt Patrick's Point State Park Comment
  UCD121122  Garrya flavescens M. Wiesendanger 1928-4-7 932 Humboldt Near Blue Lakes. Comment
  CAS-BOT-BC182169  Garrya fremontii Henry M. Pollard 1946-9-1 s.n. Humboldt Near Willow Creek, Orleans region Comment
  HSC8394  Garrya fremontii J. Wendell Howe Apr 1931 102 Humboldt Kneeland Prairie Comment
  OBI14161  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 a Humboldt Trinity River Valley, at Willow crk Comment
  UC1174948  Garrya fremontii P. C. Everett and E. K. Balls 1959-10-24 23952 Humboldt Somesbar to Orleans (2.8 mi sw from Siskiyou-Humboldt County line) 198 Comment
  UC668298  Garrya fremontii Joseph P. Tracy 1933-3-5 10918 Humboldt Alton North Coast Ranges (along Van Duzen River) 30 Comment
  UCSB72519  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  UCD66724  Gastridium phleoides S. S. Tillett 1956-7-6 609 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 487 Comment
  UC1103735  Gastridium ventricosum Joseph P. Tracy 1934-7-6 13663 Humboldt Iaqua; North Coast Ranges, Iaqua 609 Comment
  UC185004  Gastridium ventricosum Joseph P. Tracy 1912-7-26 3824 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC73068  Gaultheria ovatifolia M. A. Baker 1980-6-16 1953 Humboldt Near Onion Mtn. 1280 Comment
  HSC76327  Gaultheria ovatifolia Denis Kearns 1981-7-6 63 Humboldt Near Mosquito Lake 1122 Comment
  HSC22500  Gaultheria shallon R. D. Modafferi 1965-4-8 29 Humboldt 2.1 mi. N of Trinidad on Trinity St. 305 Comment
  HSC59210  Gaultheria shallon Terry Roth 1979-5-29 103 Humboldt Arcata, entrance to the Canyon Dorms of Humboldt State University Comment
  SDSU2869  Gaultheria shallon Harvey 1938-8-13 2254 Humboldt West of Arcata. Comment
  UC1585409  Gaultheria shallon R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 32 Humboldt w of Hoopa (just e of Pine Ridge Summit, Bair Road); Bair Road 970 Comment
  UC35398  Gayophytum diffusum subsp. parviflorum Chesnut and Drew Humboldt Comment
  UC549765  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9051 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountains 1737 Comment
  UC1196957  Gayophytum humile Joseph P. Tracy 1919-9-18 5234 1/2 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  JEPS64793  Genista monspessulana W. L. Jepson 1932-7-28 16435 Humboldt Dyerville 91 Comment
  UC213321  Gentiana plurisetosa Joseph P. Tracy 1919-9-22 5274 Humboldt Trinity Summit Northern Coast Ranges (in meadows) 1828 Comment
  UC179955  Geranium carolinianum Joseph P. Tracy 1914-5-14 4436 Humboldt Fort Seward Northern Coast Region 121 Comment
  UC165808  Geranium core-core Joseph P. Tracy 1909-6-13 2990 Humboldt Blue Lake Northern Coast Ranges 30 Comment
  UC1197408  Geranium dissectum Joseph P. Tracy 1934-6-28 13266 Humboldt s end Humboldt Vay; Salmon Creek Valley 9 Comment
  HSC8640  Geranium dissectum R. D. Modafferi 1965-5-13 103 Humboldt 2.3 mi. N of Trinidad on Trinity St. 305 Comment
  JEPS61438  Geranium oreganum Milo S. Baker 1923-7-20 30 Humboldt Head of Yager Creek Comment
  HSC89508  Geranium retrorsum M. Roantree 1985-6-11 93 Humboldt E side of Trinidad Head Comment
  UC1225824  Gilia capitata subsp. capitata Joseph P. Tracy 1948-6-13 18051 Humboldt 2 mi n Harris; near Harris 609 Comment
  UC907950  Gilia capitata subsp. capitata Joseph P. Tracy 1935-7-29 14345 Humboldt brushy ridge 1 mi ne Ranger Station (Trinity Summit); Trinity Summit 1676 Comment
  UC427877  Gilia capitata subsp. pacifica H. E. Parks, J. P. Tracy 1930-5-25 793 Humboldt near Bridgeville; near Bridgeville Comment
  CAS-BOT-BC225469  Gilia millefoliata Bolemanson 1907-5-15 s.n. Humboldt Samoa Comment
  HSC23827  Gilia millefoliata Tim Baroni 1971-6-26 64 Humboldt Out the Samoa Peninsula just opposite the Georgia Pacific pulp mill Comment
  HSC90478  Gilia millefoliata Jean Hanson 1981-5-10 131 Humboldt Indian Island, Humboldt Bay, Eureka, W end of island Comment
  POM126976  Gilia millefoliata W. C. Blasdale 1896-6-2 s.n. Humboldt West Eureka Comment
  UC906683  Gilia tricolor subsp. tricolor Joseph P. Tracy 1943-5-9 17419 1/2 Humboldt at Willow Creek Trinity River Valley, at Willow Creek 152 Comment
  SEINET10873073  Githopsis specularioides Tracy 1908-6-9 TRACY 2655 Humboldt Kneeland Prairie 762 Comment
  RSA246693  Glaux maritima Robert F. Thorne, Percy C. Everett 1965-8-7 3520 Humboldt Samoa Peninsula. 0 Comment
  HSC70404  Glyceria X occidentalis M. A. Baker 1980-6-7 1836 Humboldt Near Ammon Creek. 732 Comment
  UC1108977  Glyceria elata Francia Chisaki and Helen K. Sharsmith 1959-8-22 4756 Humboldt Happy Camp Inner North Coast Ranges (just over Trinity County line) 914 Comment
  HSC93744  Glyceria fluitans Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-25 791 Humboldt Arcata, Alder Grove Pond 18 Comment
  HSC35784  Gnaphalium palustre Thomas W. Nelson, B. Reinhardt 1975-7-30 2100 Humboldt Road out Whiting Ridge Comment
  HSC49136  Gnaphalium palustre R. Becking 1979-7-29 Humboldt Van Duzen River at Cheatam Grove E of Carlotta Comment
  SEINET11849517  Gnaphalium purpureum Unknown 1936-1 13397 Humboldt near Garberville Comment
  UC14959  Goodyera oblongifolia Ethel Tracy 1900-7-26 908 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  CAS-BOT-BC304747  Grindelia hirsutula Henry M. Pollard 1948-8-7 s.n. Humboldt Near Orleans Comment
  JEPS41866  Grindelia hirsutula Joseph P. Tracy 1918-7-1 4976 Humboldt 3 mi s of the point of Cape Mendocino (near ocean shore, following up ravines) 152 Comment
  RSA302649  Grindelia hirsutula J. R. Shevock 1972-3-27 1480 Humboldt Cape Mendocino. 46 Comment
  UC722051  Grindelia hirsutula C. L. Hitchcock and J. S. Martin 1939-7-14 5437 Humboldt bluffs facing sea at Shelter Cove Comment
  SEINET10724140  Grindelia hirsutula Harold E. Parks Parks 24190 Humboldt Gravel near water, Big Lagoon. Comment
  CHSC69498  Grindelia stricta var. platyphylla Vernon Oswald; Lowell Ahart 1997-9-4 8845 Humboldt North Coast Region. Big Lagoon County Park at the southwest edge of Big Lagoon. 3 Comment
  RSA21023  Grindelia stricta var. stricta C. B. Wolf 1937-9-12 9333 Humboldt Humboldt Bay, 1 mile south of Arcata on road to Eureka. 3 Comment
  HSC56354  Hackelia bella Griswold, Butler 1979-7-10 6325 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC525565  Hackelia bella Joseph P. Tracy Jul 16 1930-Jul 19 1930 9023 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC302440  Hazardia whitneyi var. discoidea Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  UC1199440  Hazardia whitneyi var. discoidea Joseph P. Tracy 1935-7-30 14384 Humboldt Salmon Summit 2103 Comment
  HSC73632  Helenium bigelovii M. A. Baker 1980-7-22 3100 Humboldt Near Grogan Hole 152 Comment
  HSC25943  Helenium puberulum Thomas W. Nelson 1970-10-31 293 Humboldt Eel River near N end of the Scotia Bluff. 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
  RSA46472  Heliotropium curassavicum var. oculatum Doris K. Kildale 1926-7-10 2339 Humboldt Stone Lagoon. Comment
  UC582432  Helminthotheca echioides Joseph P. Tracy 1937-8-22 15676 Humboldt near Loleta 9 Comment
  HSC44613  Hemitomes congestum R. York 1978-6-5 190 Humboldt 12 mi. up Waterman Ridge Rd. off of Hwy. 299. Bulk Collection 123 610 Comment
  UC249845  Hemizonella minima Joseph P. Tracy 1923-6-24 6349 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC100436  Hemizonella parvula Carl C. Marshall Jun 1886 25 Humboldt South Fork Mtn. Comment
  CAS-BOT-BC306035  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1928-9-2 8494 Humboldt Northern Coast Ranges. Dobbyn Creek 152 Comment
  HSC35622  Hemizonia congesta subsp. clevelandii Thomas W. Nelson, B. Reinhardt 1975-7-30 2123 Humboldt Beside private road to Pilot Rock Comment
  CAS-BOT-BC309993  Hemizonia congesta subsp. tracyi S. K. Harris 1936-6-20 s.n. Humboldt Bluff above Van Duzen River about 1 mile west of Bridgeville Comment
  UC1173664  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1939-8-10 16400 Humboldt Kneeland Prairie 762 Comment
  UC180194  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1906-7-4 2530 Humboldt Hydesville 60 Comment
  JEPS14231  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad R. 15 Comment
  HSC38910  Heracleum maximum J. P. Smith 1970-6-7 3801 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC55856  Heracleum maximum G. L. Clifton, Terry Griswold 1979-7-25 10845 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC21508  Heracleum maximum B. R. Templeton 1962-5-15 Humboldt Hwy 101 N of Arcata Comment
  SEINET10840487  Heterocodon rariflorum Tracy TRACY 3822 Humboldt KNEELAND Comment
  CAS-BOT-BC143655  Heteromeles arbutifolia Doris K. Kildale 1928-7-1 5315 Humboldt Klamath RIver at mouth of Bluff Creek Comment
  CAS-BOT-BC311054  Heterotheca oregona var. oregona Doris K. Kildale 1925-7-26 1062 Humboldt Mad River, near Blue Lake Comment
  HSC44341  Heuchera micrantha Brad Klipfel 1975-6-17 680 Humboldt Horse Mtn. Comment
  CAS-BOT-BC420721  Heuchera micrantha var. diversifolia L. R. Abrams 1916-7-10 5960 Humboldt Between Harris and Alder Pt., southern Humboldt County Comment
  SEINET192937  Heuchera micrantha var. erubescens L. Constance, RC Rollins 1942-5-12 2883 Humboldt Mouth of Bluff Cr 6 mi NE of Weitchpec Klamath-Siskiyou Region 152 Comment
  CAS-BOT-BC424195  Heuchera micrantha var. hartwegii Alice Eastwood 1907-4-21 s.n. Humboldt Trinidad, Light-house Point Comment
  UC902009  Heuchera micrantha var. macropetala Joseph P. Tracy 1948-8-15 18139 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC56042  Heuchera rubescens G. L. Clifton, Griswold 1979-7-31 11617 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC49962  Hieracium albiflorum Maralyn O'Meara 1974-7-11 542 Humboldt Kneeland; Barry Ridge Comment
  HSC98950  Hieracium greenei Cara Witte 2007-7-9 466 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  JEPS72935  Hierochloe occidentalis Lincoln Constance 1934-5-31 749 Humboldt along n side Bull Cr. (from w boundary of Park to Grasshopper Pk.(Squaw Cr.) rd,); South Fork Eel River, Bull Cr. flat Comment
  SDSU1121  Hierochloe occidentalis D. F. Howe 1962-5-22 3304 Humboldt 3 miles east of Orick on Bald Mt. road 396 Comment
  HSC13454  Hippuris vulgaris D. E. Anderson 1965-10-25 4161 Humboldt Georgia-Pacific Co., N Big Lagoon Comment
  UC1196930  Hippuris vulgaris Joseph P. Tracy 1934-7-2 13284 Humboldt mouth of Little R. 1 Comment
  HSC37237  Holcus lanatus Lon Hall 1975-6-19 401 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC71723  Holcus lanatus M. A. Baker 1980-6-26 2464 Humboldt Near Sims Creek 610 Comment
  POM232313  Holcus lanatus I. L. Wiggins 1930-6-25 4614 Humboldt Sand dunes 2 miles north of Samoa. Comment
  HSC99600  Holodiscus discolor Gilbert Muth 1979-8-1 11881 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  RSA449758  Holodiscus discolor Carl B. Wolf 1937-8-13 9227 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1127999  Holodiscus discolor A. E. Wieslander 1931-5-22 216 Humboldt hills s of Ferndale Comment
  UC666853  Holodiscus discolor Joseph P. Tracy 1936-8-7 15114 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  HSC10160  Hordeum brachyantherum L. M. Malloy 1965-5-19 41 Humboldt Arcata, between Hwy. 101 and oxydation pond Comment
  HSC58655  Hordeum brachyantherum G. L. Clifton, Griswold 1979-7-31 11727 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC187305  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1911-7-7 3392 Humboldt three mi nw of junction of Willow Creek with Trinity River (near Beese's Ranch); Northern Coast Ranges, Trinity River 914 Comment
  HSC102700  Hordeum marinum subsp. gussoneanum J. P. Smith 2013-6-16 13727 Humboldt Along State Route 36, just west of the 31.40 highway sign (milepost). 757 Comment
  HSC26776  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 466 Humboldt 915 Comment
  UC902137  Horkelia californica Joseph P. Tracy 1942-9-20 17323 Humboldt 2 mi s town (along edges of foothills); Field's Landing 6 Comment
  UC1222320  Horkelia californica subsp. dissita Joseph P. Tracy 1950-7-6 19018 Humboldt 3 mi s Burr Valley (High meadow); Buck Mountain 1158 Comment
  HSC96008  Horkelia tridentata Juha Pykala, D. H. Norris 1987-6-11 1647 Humboldt Hoopa Indian Reservation, Big Hill Rd. 1 mi. SE of Big Hill 869 Comment
  JEPS102923  Horkelia tridentata subsp. flavescens Thomas W. Nelson and Jane P. Nelson 1987-6-11 8610 Humboldt 8.5 mi E of junction with SR 96 Big Hill Rd Comment
  HSC23680  Horkelia tridentata var. flavescens D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5054 Humboldt ca. 6 miles W of Hoopa, along road from Redwood Creek to Hoopa Comment
  HSC102016  Hosackia oblongifolia var. oblongifolia M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 917 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC98966  Hosackia oblongifolia var. oblongifolia Cara Witte 2007-6-12 239 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1360 Comment
  HSC102115  Hydrophyllum fendleri var. albifrons M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1019 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC427873  Hydrophyllum tenuipes Parks and Tracy 1930-5-25 863 Humboldt in redwoods along Middle Van Duzen River Comment
  HSC39621  Hypericum anagalloides Thomas W. Nelson, Jane Nelson 1976-6-15 2724 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC58119  Hypericum anagalloides G. L. Clifton, Griswold 1979-8-1 12088 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC275343  Hypericum anagalloides Joseph P. Tracy with H. E. Parks 1924-8-3 6757 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC502936  Hypericum anagalloides Joseph P. Tracy 1932-7-16 10607 Humboldt Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  CAS-BOT-BC411326  Hypericum calycinum Robert F. Thorne; P. Everett 1965-8-9 35315 Humboldt Clam Beach County Park 3 Comment
  UC668257  Hypericum perforatum Joseph P. Tracy 1935-7-27 14274 Humboldt along trail Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  SDSU6911  Hypericum perforatum D. F Howe 1961-8-2 3118 Humboldt 10.5 miles east of Orick on Bald Mt.road, humboldt, Co. 762 Comment
  HSC5867  Hypochaeris radicata R. C. Hoover 1965-5-13 39 Humboldt At the end of Murray Rd. about 1 1/2 mi. W of McKinleyville Comment
  HSC79460  Hypochaeris radicata Kenneth Clark 1980-6-14 676 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  BLMAR694  Impatiens glandulifera Jennifer Wheeler 2013-8-13 694 Humboldt Humboldt County, Bayside Road, just north of church 6 Comment
  HSC102642  Ipomopsis aggregata subsp. aggregata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 964 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  RSA78187  Iris Rimo Bacigalupi 1951-6-14 3414 Humboldt Pseudotsuga and Abies concolor, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain) 1433 Comment
  HSC47580  Iris douglasiana Sheila Logan 1978-4-10 176 Humboldt Redwood Park behind HSU campus Comment
  HSC13859  Iris douglasiana S. S. Stutz 1963-5-4 34 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC13862  Iris douglasiana S. R. Johnson 1965-4-16 44 Humboldt 1.5 mi. S of Luffenholtz Beach Comment
  HSC79519  Iris douglasiana Kenneth Clark 1980-3-1 519 Humboldt Middle terrace, Dead Man's Gulch, Shelter Cove 43 Comment
  UC667112  Iris douglasiana Joseph P. Tracy 1935-6-23 14001 Humboldt e of Orick (Bald Hills Road) 609 Comment
  UCSB879  Iris douglasiana Phillips, Priscilla 1958-6-7 Humboldt At entrance to Big Lagoon Park; North of Trinidad Comment
  UC14927  Iris macrosiphon P. E. Goddard 1901-7-8 30 Humboldt Hupa Comment
  HSC60064  Iris tenuissima M. A. Baker 1978-5-6 464 Humboldt Junction of Bald Hills Rd. with French Camp Rd. Comment
  HSC44786  Iris tenuissima Maralyn O'Meara 1972-6-8 96 Humboldt Along Bald Hills Rd., 8 mi. E of junction with Hwy. 101 Comment
  HSC96228  Iris tenuissima subsp. tenuissima Sara March, Gillian Levy 2005-6-10 7 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  JEPS79909  Isatis tinctoria Joseph P. Tracy 1939-4-29 16239 Humboldt Klamath River at mouth of Slate Creek; Klamath River, Slate Creek 121 Comment
  UC667941  Isoetes howellii Joseph P. Tracy 1935-5-25 13841 Humboldt Fort Seward 106 Comment
  UC1152073  Isolepis carinata Joseph P. Tracy 1948-5-31 17982 Humboldt 1/2 mi ne Garberville (on the road to Harris); ne of Garberville Comment
  RSA246917  Isolepis cernua Robert F. Thorne, Percy C. Everett 1965-8-7 35215 Humboldt Samoa Peninsula: near sea level Comment
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Sep 12 2018
  SEINET5782208 Image available Jaumea carnosa S. K. Harris, C. C. Harris 1939-8-26 Humboldt S shore of Humboldt Bay Comment
  HSC5882  Jaumea carnosa H. E. Parks Aug 1941 24187 Humboldt Big Lagoon; Causeway, W end. Comment
  POM254124  Jaumea carnosa C. C. Harris, S. K. Harris 1939-8-26 994 Humboldt South shore of Humboldt Bay. Comment
  UC668200  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt mouth Eel River (salt marsh) 3 Comment
  CAS-BOT-BC109922  Juncus Doris Kildale Gillespie 1931-6-7 10654 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  CAS-BOT-BC110012  Juncus Henry M. Pollard 1956-10-8 s.n. Humboldt Along road above Ullathorne Riffle, ca. 3 miles southwest of Orleans. Comment
  RSA216153  Juncus articulatus G. H. True 1965-9-28 2654 Humboldt Klamath River at Boise Creek, 2 1/2 miles southwest of orleans. 137 Comment
  POM126145  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon. 6 Comment
  HSC23673  Juncus bolanderi Tim Baroni 1971-6-25 56 Humboldt Comment
  UC2494  Juncus bolanderi H. N. Bolander June 1867 6584 Humboldt near Elk Ridge Comment
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Jul 31 2010
  UCD170802  Juncus breweri Gordon Leppig 1998-6-14 833 Humboldt Mackerricher State Park. Ingelnook Fen just north of Fen. 6 Comment
  POM208990  Juncus bufonius Lincoln Constance 1934-6-12 862 Humboldt S Fork of Eel River, N end of Dyerville bridge, Humboldt Redwood Park. 46 Comment
  SEINET3878826  Juncus effusus var. pacificus Thomas Nelson 1974-7-20 1695 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  UCSC000127  Juncus hesperius Unknown 1975-4-21 59 Humboldt 2 miles N.W. of Fortuna - Rohnerville Comment
  HSC57015  Juncus laccatus Walter Overton, Marvin Butler 1979-7-24 9621 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC58027  Juncus laccatus G. L. Clifton 1979-7-31 11842 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC39758  Juncus lescurii Peter Sorensen 1976-8-8 Humboldt Woodley Island Comment
  HSC44561  Juncus mertensianus Brad Klipfel 1973-7-15 180 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC212987  Juncus mertensianus Joseph P. Tracy 1919-9-22 5265 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC50573  Juncus orthophyllus G. L. Clifton, Griswold 1979-7-31 11680 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  HSC14075  Juncus oxymeris D. E. Anderson 1965-9-5 4089 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  CHSC102932  Juncus patens Peter F. Zika 2007-7-30 23329 Humboldt North Coast, NCo. Above E side of Route 101, at high point between Stone and Big Lagoons. 80 Comment
  UCR205867  Juncus planifolius Peter F. Zika 2008-10-19 24229 Humboldt North Coast, east side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  SEINET11789825  Juncus tenuis J. P. Tracy 1937-1 15609 Humboldt near Blue Lake, along Mad River 15 Comment
  RSA42044  Juncus xiphioides H. C. Cantelow 1936-8-28 1641 Humboldt 4 miles W of Dinsmore Ranch. Comment
  SEINET8567059 Image available Juncus xiphioides John Thomas Howell 1936-8-28 12882 Humboldt 4.5 miles from Dinsmores on road to Bridgeville Comment
  HSC100476  Kalmia glauca Carl C. Marshall Jun 1886 302 Humboldt Trinity Summit. Comment
  CAS-BOT-BC58889  Kalmia microphylla subsp. microphylla Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  CAS-BOT-BC235884  Keckiella corymbosa H. L. Mason 1928-7-14 4900 Humboldt East Fork of the Eel River near Garberville Comment
  JEPS15153  Keckiella corymbosa H. L. Person 1932-7-31 Humboldt Korbel Eureka Quad. (Mad River, Camp 16) Comment
  RSA79773  Keckiella corymbosa F. W. Peirson 1926-7-13 7060 Humboldt Mad River, near Blue Lake. Comment
  UC1222789  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19315 Humboldt opposite mouth of Salmon River (at Ishi-Pishi Falls, w side of Klamath River); Klamath River Comment
  CAS-BOT-BC237831  Keckiella lemmonii Marcus E. Jones 1931-7-16 28828 Humboldt Junction, East of Arcata Comment
  HSC36460  Keckiella lemmonii Thomas W. Nelson, B. Reinhardt 1975-7-30 2108 Humboldt Beside Rd. out Whiting Ridge Comment
  NY790332  Keckiella lemmonii F. W. Pennell 1940-7-7 26089 Humboldt Route 299. South of Willow Creek. 182.9 Comment
  UC1245365  Keckiella lemmonii Joseph T. Gregory 1929-8-4 24 Humboldt on road from Petrolia to Dyerville (Windy Nip Gap); Windy Nip Gap Comment
  RSA0009768  Keckiella lemmonii Marcus E. Jones 1931-7-16 28828 Humboldt Junction, East of Arcata. Comment
  UC38697  Koeleria macrantha Harley P. Chandler June 1901 1342 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 304 Comment
  UC1223228  Lactuca serriola Joseph P. Tracy 1949-8-8 18403 Humboldt at Willow Creek (Frank Graham's orchard); Trinity River Valley 152 Comment
  CHSC79684  Lamiastrum galeobdolon Gordon Leppig; Kai Neander 2000-4-13 1292 Humboldt Arcata. 100 m south of trail 5 and 10 intersection. UTM zone 10, 4527N, 40E. 91 Comment
  HSC58231  Lapsana communis Walter Overton 1979-8-1 12379 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC99476  Lapsana communis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 133 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA44416  Lapsana communis H. M. Pollard 1948-7-19 s.n. Humboldt River road near Van Fleet Ranch Comment
  POM208992  Lasthenia californica Lincoln Constance 1934-5-23 616 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park 366 Comment
  JEPS9905  Lasthenia californica subsp. californica Lincoln Constance 1934-5-23 616 Humboldt sw slope in upper end Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC1199127  Lasthenia californica subsp. californica Joseph P. Tracy 1918-5-5 4924 Humboldt at Humboldt Bay Northern Coast Ranges, Humboldt Bay Comment
  CAS-BOT-BC352932  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt Larrabee Creek, near Bosworth's 457 Comment
  UC198586  Lasthenia maritima Joseph P. Tracy 1917-5-30 4810 Humboldt at mouth of Little River (stranded on ocean beach, source unknown); Northern Coast Ranges Comment
  HSC32085  Lathyrus jepsonii subsp. californicus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5702 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC302109  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1926-5-2 7432 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA53806  Lathyrus latifolius H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  CHSC859  Lathyrus littoralis M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  HSC14741  Lathyrus littoralis Francis Winter 1960-5-14 Humboldt Samoa Peninsula Comment
  UC495712  Lathyrus littoralis Joseph P. Tracy 1929-7-4 8641 Humboldt near Samoa; Northern Coast Ranges 6 Comment
  RSA249401  Lathyrus palustris D. E. Anderson, T. Nelson, S. Dowty 1972-6-17 5702 -A Humboldt McKeown Ranch north of Dinsmore Comment
  RSA64818  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19090 Humboldt Ca 10 miles W of Willow Creek, near Highway #299. Comment
  SEINET200583  Lathyrus polyphyllus Joseph Tracy 1935-7-22 14126 Humboldt Trinity Summit Klamath Mountains; In fir woods near Corral Prairie 1524 Comment
  SEINET956147  Lathyrus polyphyllus Joseph P. Tracy 1948-1 18118 Humboldt In fir forest, 1.5 miles north of Forest Service Public Camp on Trinity Summit Road. 1280 Comment
  SEINET12151839  Lathyrus torreyi C. L. Hitchcock 1949-1 19084 Humboldt ca 15miE of Blue Lake, along Hwy 299 Comment
  UC1199069  Lathyrus vestitus Joseph P. Tracy 1932-4-24 9815 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC709417  Lathyrus vestitus Joseph P. Tracy 1933-5-18 12195 Humboldt near Essex; Mad River 30 Comment
  HSC59240  Lathyrus vestitus subsp. bolanderi Clark L. Miller 1978-5-13 5125 Humboldt 2 mi. N of Trinidad State Park. Comment
  SEINET12158642  Lathyrus vestitus subsp. bolanderi J. P. Tracy 1942-1 17298 Humboldt nr "Redwood House", Valley of South Yager Creek 610 Comment
  HSC39786  Layia carnosa Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  UC89177  Layia carnosa Harley P. Chandler May 1901 1150 Humboldt Humboldt Bay 3 Comment
  RSA0008479  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt Ocean Beach at mouth of Little River Comment
  HSC59442  Lemna minor Kenneth Clark 1979-4-21 148 Humboldt Off of Cranell Rd., 50 ft. E of Hwy. 101 Comment
  HSC38940  Leontodon saxatilis subsp. saxatilis Linda M. Barker 1976-5-13 1488 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  UC1239532  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1918-8-15 5094 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  POM203447  Lepidium heterophyllum M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  UC1116214  Lepidium nitidum Joseph P. Tracy 1948-4-4 17962 Humboldt near Samoa; Humboldt Bay 6 Comment
  CAS-BOT-BC12986  Lepidium virginicum Henry M. Pollard 1946-8-10 s.n. Humboldt South of Klamath River and east of Perch Creek. Orleans Region. Comment
  UC1173729  Lepidium virginicum Joseph P. Tracy 1939-4-29 16245 Humboldt mouth of Slate Creek Klamath River 121 Comment
  HSC35964  Leptosiphon androsaceus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1948 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  UC673120  Leptosiphon latisectus Joseph P. Tracy 1940-5-17 16553 Humboldt Larrabee Valley 731 Comment
  JEPS20620  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt on Van Duzen River opposite Buck Mountain; Northern Coast Ranges, Dinsmore's Ranch 670 Comment
  OBI28618  Lessingia nemaclada J. & B. Semple, B. Semple 1981-8-21 5692 Humboldt hwy 36, 4 mi S of Mad river park Comment
  UC1199275  Leucanthemum vulgare Joseph P. Tracy 1918-7-21 5080 Humboldt around Humboldt Bay; Humboldt Hill 152 Comment
  UCD134130  Leucanthemum vulgare H. E. Parks; S. T. Parks 1943-8-1 24257 Humboldt Spruce Cove, Trinidad. 60 Comment
  CAS-BOT-BC334618  Leucanthemum vulgare Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC444058  Lewisia cotyledon var. howellii Lincoln Constance; Reed C. Rollins 1942-5-12 2885 Humboldt Klamath-Siskiyou Region. Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  HSC102127  Lewisia nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1031 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC48755  Lewisia nevadensis Brad Klipfel 1973-6-10 52 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC183667  Lewisia nevadensis Joseph P. Tracy 1913-6-17 4167 Humboldt near summit of Buck Mountain Northern Coast Ranges, Buck Mountain 1524 Comment
  HSC101974  Lewisia triphylla M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 871 Humboldt Patterson Meadows 1555 Comment
  UC1103199  Leymus mollis subsp. mollis J. P. Tracy 1900-7-4 884 Humboldt ocean beach opp. Eureka; Samoa Comment
  UC34076  Leymus mollis subsp. mollis J. P. Tracy 1901-8-7 1267 Humboldt ocean beach opp. Eureka; Samoa Comment
  UC573707  Leymus mollis subsp. mollis H. S. Yates 1936-6-18 5727 Humboldt near mouth of Little River; Eureka Quadrangle 4 Comment
  SEINET200642 Image available Leymus triticoides J. P. Tracy 1929-6-3 8601 Humboldt Trinity River Valley at Willow Creek 152 Comment
  RSA10139  Leymus vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt Cape Mendocino, south of point of the Cape 3 Comment
  POM160825A  Ligusticum apiifolium Joseph P. Tracy 1924-8-17 6820 Humboldt Trinidad 61 Comment
  UC1197172  Ligusticum apiifolium Joseph P. Tracy 1939-8-5 16379 Humboldt along Van Duzen R. below Dinsmore's; Van Duzen R. 762 Comment
  HSC91937  Ligusticum californicum E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, edge of meadow at Palmer's Point Comment
  HSC98621  Ligusticum californicum Cara Witte 2008-7-28 957 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1592 Comment
  UC906664  Ligusticum californicum Joseph P. Tracy 1949-8-11 18482 Humboldt 2 - 6 mi. s.. from Grouse Mt. (Kinsey Ridge); Kinsey Ridge 1341 Comment
  UC154089  Lilaeopsis occidentalis Joseph P. Tracy 1909-9-19 3102 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 0 Comment
  UC175813  Lilium columbianum Joseph P. Tracy 1913-7-13 4356 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  CAS-BOT-BC508401  Lilium columbianum L. R. Abrams; R. Bacigalupi 1922-6-25 8297 Humboldt Bluffs north of Big Lagoon Comment
  SEINET12057381  Lilium columbianum F. H. Utech 1978-6-30 78 -260 Humboldt ca 2.5 km S of Del Norte/Humboldt County line on US 101 Comment
  UC1334273  Lilium kelloggii Albert M. Vollmer and Ira L. Wiggins 1940-7-4 6 Humboldt 15 mi. w. Weitchpec (on burned-over ridge on Orick-Weitchpec rd.) 944 Comment
  UC303044  Lilium pardalinum Joseph P. Tracy 1926-6-27 7668 Humboldt Horse Mountain; Northern Coast Ranges 1463 Comment
  UC902038  Lilium pardalinum Joseph P. Tracy 1949-8-26 18518 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UCSB698  Lilium pardalinum Phillips, Priscilla 1958-6-7 Humboldt On Highway 101, 14.1 mi. south of Prairie Creek Redwoods State Park (north of Trinidad) Comment
  HSC15581  Lilium rubescens Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  UC1005676  Limnanthes douglasii Frank W. Gould 1939-5-30 836 Humboldt about 25 mi due e Eureka (near top of mt., in pasture near ski hut); Horse Mountain 335 Comment
  HSC63016  Limnanthes douglasii subsp. nivea David Wheeler 1979-5-23 136 Humboldt About 1/2 mi. towards Bridgeville from the Jct. at High Prairie. Comment
  HSC83038  Limonium californicum A. L. Eicher 1985-6-19 Humboldt Humboldt Bay, 0.3 mi. S of the junction of Samoa Blvd. and Vance Ave. 1 Comment
  UC908625  Linanthus acicularis Joseph P. Tracy 1927-5-15 8033 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1198567  Linanthus bicolor Joseph P. Tracy 1914-5-14 4435 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC1198545  Linanthus bolanderi Joseph P. Tracy 1911-7-7 3393 Humboldt 2 mi nw junction of Willow Creek with Trinity River (near the Beebe's Ranch) 914 Comment
  UC1051526  Linanthus latisectus Helen K. Sharsmith 1953-6-28 4383 Humboldt between Bell Springs and Blue Rock Ranch (Bell Springs Road); Inner North Coast Ranges 853 Comment
  HSC100707  Linnaea borealis Carl C. Marshall Jun 1886 258 Humboldt E of Hoopa. Comment
  HSC63066  Linum bienne David Wheeler 1979-5-23 135 Humboldt Humboldt State University campus by the Plant Operations yard. Comment
  UC668020  Lipocarpha aristulata Joseph P. Tracy 1931-9-7 9650 B Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC27569  Listera caurina J. D. Ackerman, A. Montalvo 1973-6-29 71 Humboldt 2 mi. N of Manila Comment
  UC666981  Listera caurina Joseph P. Tracy 1937-8-12 15648 Humboldt Snow Camp 1402 Comment
  RSA21079  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1937-8-13 9239 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC40822  Lithophragma campanulatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2850 Humboldt S of spring along rd. to Goat Hill 1646 Comment
  HSC97104  Lithophragma campanulatum Yun Chan, Renee Meyer, Sophary Yun 2007-6-13 10 Humboldt 1 mi. E of Hwy. 299 on F.S. Rd. NF1; Grouse Mtn. Meadow 1585 Comment
  UC1225760  Lobularia maritima Joseph P. Tracy 1946-6-2 17556 1/2 Humboldt near Samoa (on Humboldt Bay); Humboldt Bay 6 Comment
  JEPS20910  Logfia filaginoides Joseph P. Tracy 1927-5-22 8072 Humboldt Kneeland Prairie 762 Comment
  UC1199427  Logfia gallica Joseph P. Tracy 1938-6-9 15884 Humboldt Dobbyn Creek 152 Comment
  HSC77904  Logfia gallica L. P. Janeway, Paul Wilson 1984-5-25 826 Humboldt On the N Spit of Humboldt Bay; on BLM lands near the Coast Guard Station 5 Comment
  CAS-BOT-BC283404  Lolium multiflorum W. R. Dudley 1899-6-19 s.n. Humboldt Shady run, Scotia Comment
  UCD66191  Lolium multiflorum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Around Fields Landing. Comment
  CAS-BOT-BC283409  Lolium multiflorum Brant Rogers; Arnold Tiehm 1978-6-28 1058 Humboldt Virgin Valley. Pasture just S of Range HQ Duffurena Ranch 1472 Comment
  BLMAR646  Lomatium Jennifer Wheeler 2011-5-27 646 Humboldt Lacks Creek, Oak woodland of Stormy Saddle 1097 Comment
  SEINET200742  Lomatium dasycarpum Joeseph P. Tracy 1923-6-27 6380 Humboldt Trinity River Valley, near the South Fork 183 Comment
  UC1222808  Lomatium dasycarpum Joseph P. Tracy 1950-7-6 19000 Humboldt Albee Road, 2 mi S of Burr Valley Comment
  HSC55624  Lomatium macrocarpum Overton, Butler 1979-7-24 9575 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC73958  Lomatium nudicaule Gail Newton 1980-6-7 125 Humboldt Near Brush Mtn. 1128 Comment
  UC1197149  Lomatium tracyi Joseph P. Tracy 1933-7-9 12650 Humboldt Brannan Mt. Northern Coast Ranges, Brannan Mt. 1066 Comment
  UC906644  Lomatium triternatum var. triternatum Joseph P. Tracy 1942-6-23 17228 Humboldt 1 mi. w. Box Camp (Trinity Summit); Trinity Summit 1219 Comment
  HSC45626  Lomatium utriculatum Diane L. Reed 1978-5-27 133 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  UC642350  Lomatium utriculatum Joseph P. Tracy 1930-6-29 8814 Humboldt lower foothills of its n.w. slope Buck Mt. 762 Comment
  HSC81687  Lonicera conjugialis Thomas W. Nelson 1979-7-11 5001 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1222488  Lonicera conjugialis Joseph P. Tracy 1951-6-16 19483 Humboldt summit of the Siskiyous at crossing of Takilma-Happy Camp Road Siskiyous Comment
Read comments
Jul 31 2012
  UC1239549  Lonicera conjugialis Joseph P. Tracy 1932-7-11 10413 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC3942  Lonicera hispidula var. vacillans W. D. Stevens 1967-7-16 44 Humboldt Along dirt rd. from Hwy. 101 to top of N bank of Mad River. Comment
  HSC60070  Lonicera hispidula var. vacillans M. A. Baker 1978-5-6 502 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC65073  Lonicera hispidula var. vacillans J. P. Smith, Steve Selva 1970-6-14 3854 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  JEPS12840  Lonicera hispidula var. vacillans Lincoln Constance 1934-5-29 717 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  CHSC65259  Lonicera involucrata var. ledebourii H. E. Parks 1935-5-1 5542 Humboldt Comment
  HSC31630  Lonicera involucrata var. ledebourii Glenn McGourty 1974-8-27 16 Humboldt About 1 mi. from Capetown bridge. Comment
  UC1239557  Lonicera involucrata var. ledebourii Joseph P. Tracy 1901-4-21 1033 Humboldt Eureka Northern Coast Region 0 Comment
  HSC76444  Lotus corniculatus John Demarinis 1981-7-21 880 Humboldt Near Table Bluff 38 Comment
  UC1561361  Lotus corniculatus Barbara Ertter with Thomas J. Delendick 1987-5-16 6914 Humboldt ca 8 mi e Arcata (Hwy 299, 9.5 mi w of Lord Ellis summit) Comment
  RSA275285  Lotus crassifolius Thomas W. Nelson, Jane Nelson, A. Nelson 1977-7-4 3614 Humboldt Along road north from Alder Springs. 1524 Comment
  RSA168860  Lotus formosissimus Joseph P. Tracy 1950-6-8 18746 Humboldt Capetown, on Bear River, top of Cape Ridge. 152 Comment
  SEINET3696853 Image available Lotus formosissimus Joseph P. Tracy 1935-6-8 13941 Humboldt Santa Clara Tract, just E of Eureka Comment
  HSC96219  Lotus humistratus M. Lindquist, C. Riley 2005-6-8 5 Humboldt 1.4 mi. S of Hwy. 299 on Titlow Hill Rd. 914 Comment
  JEPS55459  Lotus nevadensis var. nevadensis Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC594244  Lotus purshianus var. purshianus S. K. Harris and J. P. Tracy 1936-6-10 3249 Humboldt Tracy's Ranch Willow Creek Comment
  SEINET181202 Image available Lotus scoparius var. scoparius Bassett Maguire, Ruth Maguire 1934-6-8 15126 Humboldt Vicinity Squaw Creek Comment
  POM276694  Lotus unifoliolatus Lyman Benson 1928-7-12 462 Humboldt Weott Ranger Station. 61 Comment
  HSC71612  Lotus unifoliolatus var. unifoliolatus J. P. Smith 1973-5-26 6835 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC98994  Lotus unifoliolatus var. unifoliolatus Cara Witte 2008-8-16 1021 Humboldt Forest Service Road 5N10. 1/4 mile east of intersection with National Forest 1. 1359 Comment
  JEPS55422  Lotus yollabolliensis Joseph P. Tracy Jul 16 1930-Jul 30 1930 8945 Humboldt near Blake lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC1196932  Ludwigia palustris Joseph P. Tracy 1948-7-26 18076 Humboldt mouth of Willow Creek Lack Pond; Northern Coast Ranges, Trinity R. Valley, Lack Pond 152 Comment
  HSC49991  Luina hypoleuca M. A. Baker 1979-6-7 799 Humboldt Willow Creek Canyon Comment
  UC1193159  Luina hypoleuca P. Zinke 1950-10-9 185 Humboldt 300 yards nw summit of Kings Peak 1249 Comment
  CAS-BOT-BC201192  Lupinus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CDA27368  Lupinus albifrons var. collinus K. Eickhoff, C. M. Witte 2005-6-24 15 Humboldt Approximately 13 miles south of Highway 299 on NF1. Comment
  CDA27377  Lupinus arboreus T. C. Fuller 1961-9-28 7052 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  HSC14779  Lupinus arboreus Francis Winter 1960-5-6 Humboldt Little River State Park, N of Arcata Comment
  UC169052  Lupinus arboreus Joseph P. Tracy 1912-2-25 3559 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  BLMAR809  Lupinus bicolor Madeleine Hassett 2017-6-7 809 Humboldt King range, Dune next to Mattole Campground (Petrolia) 0 Comment
  HSC71165  Lupinus bicolor Thomas W. Nelson 1977-5-30 3411 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC79474  Lupinus constancei Thomas W. Nelson, Jane Nelson 1982-7-9 7079 Humboldt Mt. Lassic (Signal Peak) and saddle to E 1768 Comment
  NY15833  Lupinus constancei T. W. Nelson 1982-7-9 7079 Humboldt Blocksburg quadrangle. Sepentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1767.8 Comment
  HSC39678  Lupinus latifolius subsp. latifolius Thomas W. Nelson, Jane P. Nelson 1976-6-16 2744 Humboldt Along FS 2S08, between Alder Springs & Pine Mtn. 1494 Comment
  UC15889  Lupinus latifolius var. latifolius Harley P. Chandler June, 1901 1365 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC15962  Lupinus lepidus var. sellulus Harley P. Chandler Jun 1901 1498 Humboldt Klamath River Comment
  POM179219  Lupinus luteolus H. C. Cantelow 1940-7-6 s.n. Humboldt Near Van Duzen River, 7.5 miles east of Dinsmore. Comment
  UC204631  Lupinus rivularis Joseph P. Tracy 1918-9-8 5099 Humboldt Eureka; Northern Coast Ranges, at Eureka 0 Comment
  SEINET10488866  Lupinus rivularis Donald E. Bright 1962-6-10 Bright 270 Humboldt Roadside, 5 mi s of ferndale. Comment
  SEINET10837864  Lupinus rivularis Donald E. Bright 1962-6-11 Bright 276 Humboldt Growing with hemlock and redwood, 1 mi n of trinidad. Comment
  RSA104397  Lupinus tracyi Joseph P. Tracy 1932-7-15 10598 Humboldt Corral Prairie, Trinity Summit 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
  HSC75476  Luzula comosa J. O. Sawyer 1980-7-18 3623 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC99372  Luzula comosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 21 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC2983  Luzula comosa Harley P. Chandler May, 1901 1159 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay Comment
  HSC14137  Luzula comosa Yarick 1960-8-10 Humboldt W of rd. above Camp 9, Simpson Comment
  HSC14165  Luzula comosa S. R. Johnson 1965-4-30 47 Humboldt 0.5 mi. N of Luffenholtz Beach Comment
  JEPS121643  Luzula multiflora Jennifer Buck, Danielle Roach 2009-8-19 Humboldt Kerlin Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM06A Comment
  HSC39164  Luzula parviflora D. E. Anderson, J. P. Smith 1971-6-28 - 1239 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  HSC74203  Luzula parviflora M. A. Baker 1980-7-19 3037 Humboldt Near Bret Hole 1814 Comment
  UC184975  Luzula parviflora Joseph P. Tracy 1908-7-16 2877 Humboldt opposite Buck Mountain (in valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  RSA32655  Lychnis coronaria Doris K. Kildale 1927-7-3 3651 Humboldt Willow Creek Flat. Comment
  UC249774  Lycopodiella inundata Joseph P. Tracy with H. E. Parks 1924-8-3 6769 Humboldt sphagnum bog at sw corner Big Lagoon; Northern Coast Region 6 Comment
  HSC95519  Lycopodium clavatum Gordon Leppig 2004-2-3 2130 Humboldt Pacific Lumber Co. land, NE edge of THP 1-00-032. 300 Comment
  UC1745148 Image available Lycopodium clavatum Clare T. Golec 2000-7-13 Humboldt Spur ridge above Mad R. SE of Blue Lake 76 Comment
  UCSC002911  Lycopodium clavatum W. Doyle 1975-4-30 s.n. Humboldt clear-cut forest area Comment
  UC1198268  Lysichiton americanus Joseph P. Tracy 1947-5-24 17690 Humboldt Big Lagoon 9 Comment
  POM68322  Lysichiton americanus Marcus E. Jones 1924-05 s.n. Humboldt Scotia. [county not specified] Comment
Read comments
Dec 31 2015
  UCD103045  Lythrum hyssopifolia H. E. Parks; S. T. Parks 1937-6-1 24028 Humboldt Trinidad, Spruce Cove. Comment
  CAS-BOT-BC342803  Madia elegans Henry M. Pollard 1947-8-21 s.n. Humboldt Ferrian Ranch, nr. Orleans Comment
  RSA167397  Madia elegans subsp. elegans Joseph P. Tracy 1947-7-9 17827 Humboldt Horse Mountain 1067 Comment
  HSC73178  Madia exigua M. A. Baker 1980-5-18 1336 Humboldt Near Black Mtn. 792 Comment
  HSC44541  Madia gracilis Brad Klipfel 1973-7-15 160 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC71593  Madia gracilis M. A. Baker 1980-6-26 2402 Humboldt Near Sims Creek 610 Comment
  JEPS19928  Madia gracilis Lincoln Constance 1934-5-29 711 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC176727  Madia gracilis Joseph P. Tracy 1909-8-1 3069 Humboldt Kneeland Prairie 762 Comment
  UC176779  Madia gracilis Joseph P. Tracy 1908-6 2694 Humboldt opposite Buck Mountain; Valley of Van Duzen River 762 Comment
  UC176465  Madia gracilis Joseph P. Tracy 1913-6-13 4109 Humboldt Dinsmore's Ranch; Buck Mountains, Valley of Van Duzen River 762 Comment
  UC495627 Image available Madia gracilis Joseph P. Tracy 1931-6-28 9588 Humboldt lower foothills of northwest slope of Buck Mountain Comment
  RSA249398  Madia madioides D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-17 5696 Humboldt McKeown Ranch north of Dinsmore Comment
  CAS-BOT-BC343595  Madia sativa Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  JEPS94960  Madia sativa Vernon Oswald and Lowell Ahart 1997-9-4 8854 Humboldt Somoa Dunes Recreation Area at the s end of the North Spit separating Humboldt Bay from ocean North Spit; Somoa Dunes Recreation Area, North Spit Comment
  HSC103978  Maianthemum dilatatum Kyle Brown 2015-4-25 38 Humboldt Trinidad, along trail at Trinidad State Beach Park 15 Comment
  HSC15595  Maianthemum dilatatum A. E. Inman 1962-5-25 Humboldt S bank of Mad River, 50 yds W of Hwy. 299 bridge Comment
  POM114046  Maianthemum dilatatum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA376907  Maianthemum dilatatum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 606 Humboldt About 25 miles north of Arcata on the south end of Big Lagoon. Comment
  HSC79371  Maianthemum racemosum subsp. amplexicaule Kenneth Clark 1980-3-27 555 Humboldt On divide of N and S Forks of Dead Man's Gulch 122 Comment
  HSC15889  Maianthemum stellatum Gerald T. Rood 1962-5-11 4 Humboldt Kneeland Rd., 0.25 mi. E of Barry Rd. Comment
  HSC45240  Maianthemum stellatum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3509 Humboldt Alder Springs 1524 Comment
  UC1223206  Malacothrix clevelandii Joseph P. Tracy 1946-11-17 17667 Humboldt at mouth Van Duzen River; Eel River at mouth of Van Duzen River Comment
  HSC58709  Malacothrix floccifera Griswold, Butler 1979-7-12 7241 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC14182  Malus fusca W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  HSC15993  Malva nicaeensis Paul Shields 1955-6-3 Humboldt HSC campus Comment
  HSC100465  Marah Carl C. Marshall Apr 1886 55 Humboldt Everywhere. Comment
  HSC73820  Marah oregana Gail Newton 1980-6-7 135 Humboldt Near Brush Mtn. 1128 Comment
  HSC95680  Marah oregana Steven Lee 2004-4-11 16 Humboldt About 1 mi. N of Scenic Dr., Houda Point. Off of Hwy. 101, Westhaven. Comment
  RSA79372  Marah oregana E. K. Balls, L. W. Lenz 1952-5-12 17199 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  UC1199283  Matricaria discoidea Joseph P. Tracy 1933-5-20 12217 Humboldt Capetown 30 Comment
  UC1197430  Medicago arabica Joseph P. Tracy 1936-6-8 14867 Humboldt Trinidad; on bluffs 3 Comment
  UC1197432  Medicago lupulina Joseph P. Tracy 1915-7-25 4662 Humboldt Eureka Northern Coast Region 0 Comment
  UC1197426  Medicago polymorpha Joseph P. Tracy 1936-6-8 14868 Humboldt Trinidad Bluffs Trinidad 3 Comment
  UC1145125  Melica geyeri Joseph P. Tracy 1942-6-2 17099 Humboldt 2 mi n Bridgeville 609 Comment
  CAS-BOT-BC281320  Melica harfordii David D. Keck 1948-7-2 6005 Humboldt E side Rocky Ridge, E of Berry's summit, 4.1 miles W of Willow Creek, near boundary of Six Rivers National Forest 457 Comment
  HSC74231  Melica harfordii M. A. Baker 1980-7-15 2984 Humboldt Near Whiting Ridge. 1341 Comment
  UCD88660  Melica subulata H. L. Person 1932-5-11 19413 Humboldt Arcata. 0 Comment
  HSC98074  Melilotus albus Cara Witte 2007-7-12 529 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  JEPS65536  Melilotus indicus Lincoln Constance 1934-5-26 662 Humboldt s end of Dyerville Bridge, South Fork of Eel River, Bull Creek Region Dyerville Bridge; Bull Creek Region, South Fork Eel River, Dyerville Bridge 45 Comment
  HSC14248  Mentha canadensis Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  JEPS63451  Mentha pulegium W. L. Jepson 1936-8-11 17872 Humboldt South Fork Eel River Philipsville; , Philipsville Comment
  UCLA58373  Mentha pulegium Joseph Andorfer Ewan 1937-7-1 10436 Humboldt Stephens Grove above Garberville; Stephens Grove above Garberville Comment
  SEINET3410193 Image available Micranthes ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt Trinity Summit; Rocky exposed places, Near Ranger Station 1829 Comment
  HSC100505  Micromeria douglasii Carl C. Marshall Jun 1887 459 Humboldt Everywhere. Comment
  UC1199336  Micropus californicus var. californicus Joseph P. Tracy 1927-6-5 8105 Humboldt Valley of South Yager Creek 762 Comment
  UC164793  Microseris bigelovii Joseph P. Tracy 1911-5-30 3203 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  UC164797  Microseris bigelovii Joseph P. Tracy 1911-5-27 3190 Humboldt Humboldt Bay Northern Coast Region Comment
  SEINET11810186  Microseris linearifolia J. P. Tracy 1947-1 17676 Humboldt near Briceland Comment
  HSC103080  Microseris nutans Sydney Carothers 2014-6-12 14 Humboldt Six Rivers National Forest, Lassics Botanical Area, north slope Red Lassic 1712 Comment
  HSC98617  Microsteris gracilis Cara Witte 2007-5-23 111 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1635 Comment
  HSC12373  Mimulus alsinoides C. E. Fellows 1970-5-1 267 Humboldt 11 mi. W of Willow Creek, S side of Hwy. 299 Comment
  UC582606  Mimulus alsinoides Joseph P. Tracy 1923-6-3 6258 Humboldt Kneeland Prairie 762 Comment
  SEINET7879020 Image available Mimulus aurantiacus C. C. Harris, S. K. Harris 1936-1 681 Humboldt Open hillside above Carlotta, elevation about 200 feet, Humboldt County, California. 1 Comment
  HSC26881  Mimulus aurantiacus var. aurantiacus Clifton Raymond Chesbrough 1973-6-19 88 Humboldt 0.5 mi. S of Trinidad along the coast Comment
  UC1193340  Mimulus aurantiacus var. aurantiacus K. Cuff 1950-10-9 126 Humboldt 1/2 mi ne Honeydew (Quad 28A4) 152 Comment
  UC902229  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1947-5-24 17691 Humboldt Devil's Canyon Big Lagoon 152 Comment
  UC26714 Image available Mimulus aurantiacus var. pubescens J. Burtt Davy before June, 1894 Humboldt Comment
  HSC75454  Mimulus breweri J. O. Sawyer 1980-7-18 3591 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1281762  Mimulus dentatus Richard Spellenberg 1965-6-14 1133 Humboldt about 1 1/2 mi e Bayside (on road leading up to Jacoby Creek (Bayside is 2 mi s of Arcata)) Comment
  UC198662  Mimulus douglasii Joseph P. Tracy 1915-5-20 4639 Humboldt Eureka Northern Coast Ranges Comment
  HSC70515  Mimulus guttatus Gail Newton 1980-7-20 1619 Humboldt Near Bell Swamps 1426 Comment
  HSC71741  Mimulus guttatus M. A. Baker 1980-6-26 2421 Humboldt Near Sims Creek 610 Comment
  UC1196768  Mimulus inodorus Joseph P. Tracy 1939-8-5 16376 Humboldt Dinsmore's Van Duzen River 731 Comment
  UC444806  Mimulus kelloggii Mrs. M. H. Manning 1901-5-26 Humboldt near Hupa; Hupa Valley Comment
  HSC24378  Mimulus moschatus J. O. Sawyer 1970-6-24 2253 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  JEPS10599  Mimulus pilosus Joseph P. Tracy 1925-11-1 7300 Humboldt Shively 60 Comment
  HSC43204  Mimulus pilosus R. Sutherland 1976-8-13 26 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  HSC42454  Mimulus pulsiferae Barbara Kelly 1977-7-16 539 Humboldt On Horse Mtn. Rd., 1/2 mi. below where it forks; 1.5 mi. below summit 1402 Comment
  UC1103537  Minuartia californica Joseph P. Tracy 1918-5-1 4908 Humboldt Lawrence Creek Hill Northern Coast Ranges, Kneeland Prairie (top) 762 Comment
  CAS-BOT-BC388625  Minuartia douglasii Doris K. Kildale 1926-4-25 1801 Humboldt Willow Creek Flat 152 Comment
  HSC73077  Minuartia douglasii M. A. Baker 1980-5-18 1334 Humboldt Near Black Mtn. 792 Comment
  UC162891  Minuartia douglasii Mrs. M. H. Manning 1901-5 21 Humboldt near Hupa Comment
  BLMAR422  Minuartia douglasii Jennifer Wheeler May, 2007 422 Humboldt King range, Mill Creek, 914 Comment
  HSC55344  Mitella caulescens Griswold, Butler 1979-7-12 7210 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC902075  Mitella caulescens Joseph P. Tracy 1949-6-25 18348 Humboldt near Box Camp; Trinity Summit 1524 Comment
  BLMAR365  Modiola caroliniana Clara Sander 2003-6-3 365 Humboldt King range, Mattole campground roadside 9 Comment
  HSC57989  Monardella odoratissima G. L. Clifton, Griswold 1979-7-31 11732 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC215566  Monardella odoratissima subsp. pallida Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  UC1222870  Monardella purpurea Joseph P. Tracy 1950-7-27 18920 Humboldt at intersection of Haynes Flat Road Coon Mountain 944 Comment
  CAS-BOT-BC444801  Montia diffusa Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2615 Humboldt Above Van Duzen River, 1 mile below Dinsmore's. 762 Comment
  JEPS109237  Montia howellii Stephanie Puentes 2008-4-23 Humboldt Vicinity Larabee Valley, along Horse Creek about 1 mile upstream from Hwy 36. Comment
  HSC97935  Montia linearis Cara Witte 2007-5-21 63 Humboldt White Oak Opening. 1257 Comment
  HSC12368  Morella californica C. E. Fellows 1970-10-7 375 Humboldt McKinleyville 0.25 mi. SW of end of Murray Rd. Comment
  HSC16100  Morella californica P. Markle 1962-5-24 63 Humboldt Edge of 18th St. in Arcata 30 Comment
  HSC45288  Morella californica Brad Klipfel 1974-4-27 314 Humboldt SW side of Big Lagoon. Comment
  POM257954  Muhlenbergia filiformis Joseph P. Tracy 8920 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1677 Comment
  CAS-BOT-BC275347  Muhlenbergia mexicana Henry M. Pollard 1947-8-19 s.n. Humboldt Wilson Creek, near Orleans Comment
  JEPS70782  Myosotis latifolia W. L. Jepson 1934-5-7 16685 Humboldt Dyerville Comment
  POM89536  Myriophyllum sibiricum Joseph P. Tracy 1920-8-29 s.n. Humboldt Near mouth of Little River, in pond in coast sand dunes. 6 Comment
  UCD87653  Nassella pulchra A. H. Murphy 1951-3-30 s.n. Humboldt Mattole Valley. Along roadside near Mattole River Grange Hall. Comment
  CAS-BOT-BC60344  Nasturtium officinale Kenneth Clark 1980-5-10 650 Humboldt Shelter Cove. Point Delgada. On Western beach coastal bluffs. 6 Comment
  UC162572  Navarretia atractyloides Joseph P. Tracy 1911-7-4 3302 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, Trinity River, Willow Creek 182 Comment
  HSC73502  Navarretia capillaris Gail Newton 1980-7-11 1325 Humboldt Near Red Mtn. 1341 Comment
  UC1197901  Navarretia capillaris Joseph P. Tracy 1935-7-28 14314 1/2 Humboldt head Devil's Hole , head of Devil's Hole (Trinity Summit) 1828 Comment
  UC1198607  Navarretia intertexta Joseph P. Tracy 1934-7-9 13345 Humboldt Dobbyn Creek 152 Comment
  UC23649  Navarretia intertexta Harley P. Chandler Jun 1901 1411 Humboldt Klamath River North Coast Ranges 243 Comment
  UC1222713  Navarretia intertexta subsp. intertexta Joseph P. Tracy 1950-6-25 18899 Humboldt 3 mi s Burr Valley (near the Sprosten Place, on the road to the Albee Place) Comment
  HSC96932  Navarretia intertexta subsp. propinqua Elizabeth Kimbrough, Whitney Meier 2007-6-13 9 Humboldt Grouse Mtn., 1 mi. E of NF1 on USFS 5N04 1524 Comment
  UC198634  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point Northern Coast Ranges 152 Comment
  JEPS70472  Navarretia squarrosa Joseph P. Tracy 1921-8-21 5935 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC27618  Navarretia squarrosa Thomas W. Nelson 1973-7-24 1100 Humboldt Flood plain of the Mad River at the Carson R.R. bridge Comment
  POM92408  Navarretia squarrosa L. R. Abrams 1922-6-25 8239 Humboldt 2 miles south of Fortuna Comment
  UC169028  Nemacladus capillaris Joseph P. Tracy Jul 21 1905-Aug 16 1905 2296 Humboldt Elk Mountain; Northern Coast Ranges 1219 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
  HSC38261  Nemophila menziesii var. atomaria Thomas W. Nelson, James Nelson 1976-3-11 2268 Humboldt Beside Bridgeville-Kneeland Rd. at jct. with Redwood House Rd. Comment
  HSC58023  Nemophila parviflora G. L. Clifton 1979-7-31 11829 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC76196  Nemophila parviflora Overton, Butler 1979-7-24 9799 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  RSA46499  Nicotiana bigelovii Doris K. Kildale 1925-9-12 1327 Humboldt Salmon Crk near Miranda. 114 Comment
  CAS-BOT-BC60546  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 853 Comment
  UC774627  Nuphar lutea subsp. polysepala Carl B. Wolf 1937-9-9 9309 Humboldt 1 mi s of Capetown (on road to Cape Mendocino) 91 Comment
  JEPS40280  Nuphar lutea subsp. polysepala W. L. Jepson 1902-6 1920 Humboldt pond near Arcata Comment
  HSC20657  Nuttallanthus texanus R. J. Vernimen 1963-4-27 36 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  CAS-BOT-BC142291  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15249 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC31804  Oemleria cerasiformis Steve Selva, Roger Jensen 1974-8-28 93 Humboldt Humboldt State University Freshwater Forest Comment
  RSA293126  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt moist hillside beside Eureka Muni. Golf Course. Comment
  UC183606  Oemleria cerasiformis Joseph P. Tracy 1913-3-9 4022 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1400342  Oenanthe sarmentosa Robert F. Thorne and P. Everett 1965-8-9 35318 Humboldt Clam Beach County Park 3 Comment
  POM224764  Oenothera glazioviana P. A. Munz 1936-8-10 14335 Humboldt At edge of Rio Del. Comment
  HSC92715  Oenothera villosa subsp. strigosa D. K. Imper 1985-7-15 Humboldt About 1 mi. S of Orleans on E side of Hwy. 96 43 Comment
  CAS-BOT-BC499670  Orobanche californica subsp. californica Edward Lee 1934-8-17 1152 Humboldt East shore of Big Lagoon, 35 mi N of Eureka 3 Comment
  HSC98561  Orobanche uniflora Cara Witte 2008-6-15 733 Humboldt Coldspring Camp. 1410 Comment
  HSC55161  Orthilia secunda Gilbert Muth 1979-8-1 12130 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1222795  Orthocarpus imbricatus Joseph P. Tracy 1950-8-8 19285 Humboldt Croghan Hole Trinity Summit (Trinity Summit); , Croghan Hole 1676 Comment
  UC1197132  Osmorhiza occidentalis Joseph P. Tracy 1932-7-11 10420 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC642274  Osmorhiza occidentalis Joseph P. Tracy 1928-6-24 8462 Humboldt Valley of South Yager Creek 762 Comment
  HSC98819  Osmorhiza occidentalis Cara Witte 2008-7-1 790 Humboldt Forest Service Road 4N32. .5 miles east of intersection with 5N04 and 4N32E. 1508 Comment
  UC1197130  Osmorhiza occidentalis Joseph P. Tracy 1936-6-17 14948 1/2 Humboldt Buck Mountain Northern Coast Ranges (lower foothills, on nw slope) 762 Comment
  POM174070  Oxalis albicans subsp. pilosa Joseph P. Tracy 1918-11-17 5119 Humboldt Elk River Corners, at Eureka. 0 Comment
  HSC12024  Oxalis corniculata D. Santana 1970-11-2 111 Humboldt G and 17th St., in city park lot. Comment
  UCR84792  Oxalis oregana Kathy Harper 1992-5-14 s.n. Humboldt State Hwy 36 c. 5 mi. east of U.S. Hwy 101, and 1 mi. east of Carlotta 61 Comment
  UC1103421  Oxalis oregana Joseph P. Tracy 1926-7-5 7721 Humboldt near Redwood House (head of Grizzle Creek, towards South Yager); Northern Coast Ranges 609 Comment
  SD64134  Oxalis rubra W. Bertsch 1953-7-30 221 Humboldt Redwoods-Dyerville-Highway 101 60 Comment
  HSC102179  Oxalis trilliifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1092 Humboldt Patterson Meadows 1566 Comment
  UC1103418  Oxalis trilliifolia Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16665 Humboldt near Grouse Mt. (Friday Ridge); Friday Ridge 1371 Comment
  CDA38475  Oxypolis occidentalis Laurel Goldsmith & Wanda Naylor 2005-6-15 7 Humboldt Coldspring Camp, 7.4 mi. south of Hwy. 299 on NF1. Comment
  RSA10050  Panicum capillare Joseph P. Tracy 1930-10-12 9207 Humboldt Eel River, Alton to Fortuna Comment
Read comments
Oct 2 2011
  UC594151  Parapholis incurva S. K. Harris, J. P. Tracy 1936-6-6 3218 Humboldt Eureka, near railroad station Comment
  HSC82966  Parapholis strigosa A. L. Eicher 1985-6-19 Humboldt Mouth of Mad River Slough, Humboldt Bay. 1 Comment
  CDA6383  Parentucellia viscosa Mills Jul 1948 Humboldt 0 Comment
  HSC20910  Parentucellia viscosa R. Spellenberg 1964-6-15 408 Humboldt 0.5 mi. S of Humboldt Hill exit, 5 mi. S of Eureka Comment
  HSC90750  Parentucellia viscosa Jean Hanson 1980-6-22 95 Humboldt Indian (Gunther) Island, Humboldt Bay, City of Eureka, W end of island Comment
  BLMAR493  Pectiantia ovalis Jennifer Wheeler 2009-4-30 493 Humboldt King range, Hidden Valley trail; trail start Comment
  UCD123312  Pedicularis densiflora Joseph M. DiTomaso 1976-3-28 361 Humboldt 3 miles east of Willow Creek on Highway 299. Comment
  JEPS3357  Pedicularis racemosa Joseph P. Tracy 1930-7-16 8917 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC50938  Pedicularis semibarbata G. L. Clifton, Walter Overton 1979-6-3 3760 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  HSC39931  Pellaea brachyptera J. O. Sawyer 1970-6-25 2294 Humboldt 1646 Comment
  HSC100393  Pellaea ornithopus Carl C. Marshall Apr 1887 361 Humboldt Supply Creek, a mile or two from Hoopa. Comment
  JEPS7206  Penstemon anguineus P. E. Goddard 1906-6 679 Humboldt Lasseck Pk Comment
  UC2062599  Penstemon anguineus Belinda Lo with Kellie Eldridge 2017-7-12 339 Humboldt HUMBOLDT COUNTY: Shasta-Trinity National Forest, Blake Mountain, near the top of Mill Creek. Comment
  JEPS7213  Penstemon anguineus Lincoln Constance 1934-6-19 905 Humboldt Grasshopper Pk near summit South Fork Eel River, Bull Creek Region 914 Comment
  UC1326253  Penstemon anguineus Milo S. Baker 1947-8-10 11911 Humboldt near end of Forest Rd from Hoopa toward Trinity Summit; rd from Hoopa toward Trinity Summit 1371 Comment
  RSA309621  Penstemon deustus Walter Wisura 1983-9-3 3931 Humboldt About 6 mi N of Weitchpec, along Klamath River. Comment
  RSA412524  Penstemon deustus H. M. Pollard 1948-7-19 s.n. Humboldt River road near Fleet Ranch, near Orleans. Comment
  UC168971  Penstemon laetus var. sagittatus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5666 Humboldt between Redwood Creek and Hoopa Valley (summit of Hoopa Mt.); North Coast Ranges, summit of Hoopa Mt. Comment
  JEPS5715  Penstemon newberryi var. berryi Chestnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  HSC55991  Penstemon procerus var. brachyanthus Walter Overton, Marvin Butler 1979-7-31 11417 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  RSA420447  Penstemon rattanii Hutchinson 1927-05 s.n. Humboldt [No location information provided.] Comment
  CAS-BOT-BC71616  Pentagramma triangularis subsp. triangularis Volney Rattan 1879-1-1 s.n. Humboldt unspecified Comment
  UC1197126  Perideridia gairdneri subsp. borealis J. P. Tracy 1906-11-4 2555 Humboldt near Eureka; Immediate vicinity of Eureka 0 Comment
  HSC56264  Perideridia gairdneri subsp. gairdneri G. L. Clifton, Terry Griswold 1979-8-2 12421 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC642256  Perideridia howellii Joseph P. Tracy 1937-8-7 15615 Humboldt 1 mi n Murphy Meadow; Bald Mt. 914 Comment
  JEPS12449  Perideridia kelloggii W. L. Jepson 1931-8-8 16488 Humboldt Grasshopper Peak 1005 Comment
  HSC56012  Perideridia parishii subsp. latifolia Gilbert Muth 1979-7-31 11495 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC56308  Perideridia parishii subsp. latifolia Overton, Butler 1979-8-2 12627 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC25526  Persicaria maculosa Norman Dennis 1965-6-8 109 Humboldt Samoa Peninsula along W side of Humboldt Bay Comment
  POM41563  Petasites palmatus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  SEINET11809913  Petasites palmatus Unknown 1937-1 13350 Humboldt near Trinidad Comment
  SD90173  Phacelia bolanderi Benjamin C. Stone 1952-6-25 124 Humboldt Hwy 101, 15 mi south of Klamath 14 Comment
  HSC70694  Phacelia corymbosa Gail Newton 1980-7-15 1559 Humboldt Near Sims Mtn. 1311 Comment
  UCR80262  Phacelia corymbosa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3576 Humboldt Head of N Fork of Conley Creek 520 Comment
  UC562573  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1926-6-20 7661 Humboldt lower slopes Horse Mt. 914 Comment
  JEPS1201  Phacelia malvifolia Joseph P. Tracy 1927-6-8 8118 Humboldt TRINIDAD Comment
  HSC91880  Phacelia malvifolia E. Mackey 1987-9-5 Humboldt Patrick's Point State Park, along the trail to the beach Comment
  UC562568  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1935-5-25 13829 Humboldt Blocksburg 518 Comment
  RSA245301  Phalaris californica D. E. Anderson 1970-6-14 5125 Humboldt near Maple Creek School about 2 miles southeast of junction of Maple Creek Rd. and Butler Valley Rd. Comment
  HSC49959  Philadelphus californicus Maralyn O'Meara 1974-7-17 555 Humboldt Along E border Comment
  CAS-BOT-BC76569  Philadelphus lewisii L. R. Abrams 1916-7-11 6006 Humboldt Between Blocksberg and Bridgeville Comment
  UC725910  Philadelphus lewisii A. A. Heller 1923-7-9 13776 Humboldt near Blue Lake (5 mi from Arcata) Comment
  UCSB25252  Philadelphus lewisii Tracy, Joseph 1937-6-20 Humboldt Bear River; 10 mi up from the mouth 152 Comment
  SEINET12219857  Philadelphus lewisii subsp. californicus J. P. Tracy 1950-1 18853 Humboldt along Redwood Creek, 2 mi W of Briceland Comment
  UC181260  Phleum alpinum Joseph P. Tracy 1913-7-20 4376 1/2 Humboldt ridge between Redwood Creek and Three Creeks (on Berry's ranch); Northern Coast Ranges, btw Redwood Creek and Three Creeks 914 Comment
  HSC97646  Phlox diffusa subsp. diffusa C. Witte 2007-5-17 23 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  UC1178966  Phlox douglasii subsp. rigida Joseph P. Tracy 1933-7-11 12657 Humboldt Horse Mountain 1432 Comment
  JEPS71114  Phlox gracilis Joseph P. Tracy 1935-7-23 14146 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC275567  Phyllospadix torreyi H. E. Parks 1924-8-7 Humboldt Trinidad Northern Coast Ranges Comment
  CAS-BOT-BC140586  Physocarpus capitatus Doris K. Kildale 1926-5-15 3158 Humboldt Petrolia Bridge, Mattole River Valley Comment
  CAS-BOT-BC73443  Picea sitchensis Doris K. Kildale 1927-5-14 3201 Humboldt Big Lagoon Comment
  NY34411  Picea sitchensis E. K. Balls 1953-10-11 18631 Humboldt 23.4 miles north of Petrolia on Old Coast Road, toward Ferndale 365.8 Comment
  NY34414  Picea sitchensis L. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad 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
  UC136  Picea sitchensis J. P. Tracy 1901-4-17 Humboldt Samoa, Humboldt Bay Comment
  UCSB24019  Picea sitchensis Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  HSC99046  Pinus jeffreyi Cara Witte 2008-6-15 754 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1 mile north of intersection with 6N36A. 1428 Comment
  HSC90184  Pinus lambertiana Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-22 56 Humboldt USFS Rd. 5N10, 2.4 mi. from its intersection with Rd. 6N08, Bulk Collection # 233 1341 Comment
  HSC54534  Pinus monticola Overton, Butler 1979-7-23 9483 Humboldt Near Horse Mtn. Creek 1326 Comment
  HSC82621  Pinus monticola Thomas W. Nelson 1979-7-11 5006 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC98647  Pinus monticola Cara Witte 2007-9-3 638 Humboldt Horse Mountain Botanical Area. Road 6N38. 1 mile east of Horse Mountain Mine. 1259 Comment
  CAS-BOT-BC79025  Pinus ponderosa Doris K. Kildale 1927-2-20 2900 Humboldt [Lassecks] Lassics Peaks Trail, Cold Spring, Goat Camp 914 Comment
  UC14939  Piperia elegans Harley P. Chandler Jun 1901 1385 b Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC615024  Piperia unalascensis Beryl O. Schreiber 1934-6-6 1146 Humboldt 5 mi e Gray's Resort (road to Redding); Redwood Creek Comment
  POM174072  Plagiobothrys bracteatus Joseph P. Tracy 1918-7-5 5010 Humboldt White Thorn Valley. 305 Comment
  UC552841  Plagiobothrys bracteatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley (bed of dried-up pond) 152 Comment
  HSC41224  Plagiobothrys hispidulus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3593 Humboldt Margin of pond above Alder Springs 1585 Comment
  UC1239572  Plagiobothrys reticulatus Joseph P. Tracy 1932-5-1 9884 Humboldt Garberville Northern Coast Ranges, Garberville 121 Comment
  UC1541669  Plagiobothrys reticulatus H. E. and S. T. Parks July 1937 24042 Humboldt Trinidad, Spruce Cove Comment
  UC582613  Plagiobothrys reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt ten mi up stream from the mouth Bear River 152 Comment
  JEPS79948  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17115 Humboldt Englewood Prairie 91 Comment
  UC1222219  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-12 17112 Humboldt Prairie Creek at the prairie at Elk Grove; Prairie Creek, Elk Grove Comment
  UC1239570  Plagiobothrys reticulatus Joseph P. Tracy 1916-6-19 4727 Humboldt near Forks Dobbyn Creek; Northern Coast Ranges, Forks Dobbyn Creek 182 Comment
  UC206138  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1909-6-6 2988 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC1239624  Plagiobothrys tenellus Joseph P. Tracy 1918-5-1 4910 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  POM61312  Plantago hirtella var. galeottiana Joseph P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC26448  Plantago maritima T. O. Osborne 1970-5-17 4 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  UC154020  Plantago subnuda J. P. Tracy 1903-8-9 1937 Humboldt immediate vicinity Eureka 0 Comment
  HSC55192  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-8-2 12266 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  JEPS79897  Platanthera leucostachys Joseph P. Tracy 1933-7-25 12842 Humboldt in bog Grouse Mountain 1524 Comment
  UC1196416  Platanthera sparsiflora Joseph P. Tracy 1926-6-27 7671 Humboldt House Mountain Northern Coast Ranges 1463 Comment
  CAS-BOT-BC91633  Platystemon californicus Alice Eastwood; John Thomas Howell 1937-6-23 4807 Humboldt Little Van Duzen River. Comment
  HSC59485  Platystemon californicus M. A. Ericksen 1979-4-29 240 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  HSC90238  Platystemon californicus Louise Watson, Jan Meninga Mar 1991 14 Humboldt Near Manilla, Mad River Slough and Dunes, NW edge of parking lot Comment
  CAS-BOT-BC91643  Platystemon californicus Mark Bransom; Daniel Brown; Ron Hildebrandt; Nina Meiselman 1986-4-19 10 Humboldt Across Route 299 from White's Bar picnic area. 0.25 mile up roadbank. Comment
  CAS-BOT-BC91644  Platystemon californicus Kenneth Clark 1981-5-24 1390 Humboldt Sherlter Cove. Abalone Point. 15 Comment
  HSC16801  Platystemon californicus Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  UC146097  Platystemon californicus Joseph P. Tracy 1904-5-1 2047 Humboldt Bucksport; Northern Coast Region, Region about Humboldt Bay 0 Comment
  UC718183  Plectritis brachystemon Carl B. Wolf 1937-6-14 8814 Humboldt North Coast Range, Kneeland Prairie Kneeland Prairie; North Coast Range, Kneeland Prairie 822 Comment
  HSC95648  Plectritis congesta Andrea Pickart 2002-4-3 34 Humboldt Samoa Dunes, Eureka airport. 15 Comment
  RSA506997  Plectritis congesta subsp. brachystemon H. E. Parks, Joseph P. Tracy 1934-6-14 11022 Humboldt Horse Mountain. 1220 Comment
  HSC63190  Pleuricospora fimbriolata M. A. Baker 1979-6-28 942 Humboldt Middle fork of Mill Creek. Comment
  SEINET179617  Pneumonanthe sceptrum H. E. Parks 1931-7-1 01052 Humboldt Bishop Pine Lodge,Trinidad, 76 Comment
  HSC10618  Poa annua R. H. Berg 1963-3-1 5 Humboldt Arcata, Fickle Hill area. Comment
  UC525625  Poa annua Joseph P. Tracy 1934-3-11 13148 Humboldt Weitchpec 121 Comment
  HSC75490  Poa compressa J. O. Sawyer 1980-7-18 3631 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC184155  Poa compressa Joseph P. Tracy 1912-7-26 3872 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  RSA183609  Poa confinis R. I. Bonn 1965-5-7 27 Humboldt Four miles west of Arcata on Lamphere Rd. Comment
  POM161908  Poa howellii Joseph P. Tracy 1921-4-24 5451 Humboldt Phillipsville. Facing south fork of Eel River. 91 Comment
  UC1026388  Poa kelloggii John Thomas Howell 1954-4-24 29151 Humboldt Bull Creek Flat Comment
  UC187251  Poa kelloggii Joseph P. Tracy 1911-6-4 3219 Humboldt along Little River (5 mi from coast); Northern Coast Region 121 Comment
  BLMAR301  Poa macrantha Jennifer Anthony-Wheeler 2002-6-15 301 Humboldt South Spit 6 Comment
  UCD91549  Poa macrantha Joseph P. Tracy 1917-5-30 4799 Humboldt Ocean Beach at Little River. Comment
  HSC39187  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1226 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC39722  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1254 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UC525616  Poa pratensis subsp. pratensis Joseph P. Tracy 1932-7-14 10537 Humboldt Corral Prairie; Klamath Mts, Trinity Summit 1524 Comment
  UC33742  Poa secunda subsp. secunda Joseph Burtt Davy and Walter C. Blasdale 1899-6-23 5862 Humboldt Trinity Summit Comment
  UCD92047  Poa secunda subsp. secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 miles W of the Snow Camp. At Beck's Place, Hydesville. (Same place from which Mr. Murphy's (UC Davis) test plots of this species were taken). 1219 Comment
  UC1145117  Poa trivialis Joseph P. Tracy 1937-6-6 15330 Humboldt Ferndale 15 Comment
  UC277172  Poa trivialis Joseph P. Tracy 1921-4-24 5451 Humboldt Phillipsville Flat, S Fork of Eel River Phillipsville Flat; Northern Coast Ranges 91 Comment
  HSC10680  Poa unilateralis C. S. Chavez 1965-4-22 48 Humboldt 1 mi. S of Samoa on Samoa Rd. Comment
  CAS-BOT-BC232887  Polemonium carneum Carl B. Wolf 1937-6-17 8881 Humboldt Big Lagoon, S side at W of Redwood Highway 6 Comment
  HSC17227  Polygala californica B. D. Rogers, William J. Ferlatte 1966-6-15 2094 Humboldt Near Bridgeville Comment
  HSC72615  Polygala californica J. P. Smith 1977-7-3 9258 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  UC535763  Polygala californica Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  HSC72626  Polygala cornuta J. P. Smith, J. O. Sawyer 1977-7-1 9226 Humboldt Six Rivers National Forest, Bluff Creek Campground. 76 Comment
  CAS-BOT-BC167574  Polygala cornuta var. cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1198990  Polygala cornuta var. cornuta Joseph P. Tracy 1911-7-6 3348 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC1198992  Polygala cornuta var. cornuta Joseph P. Tracy 1926-6-27 7674 Humboldt Horse Mountain Northern Coast Ranges (in dryest places) 1524 Comment
  UC1541401  Polygonum amphibium var. emersum H. E. Parks August 1934 5165 Humboldt Big Lagoon Comment
  UC1198085  Polygonum amphibium var. stipulaceum Joseph P. Tracy 1934-7-30 13495 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  UC1198073  Polygonum bistortoides Joseph P. Tracy 1908-6-8 2643 Humboldt Kneeland Prairie Northern Coast Ranges (near Hurley's) 762 Comment
  UC672974  Polygonum bistortoides Joseph P. Tracy 1930-7-16 8924 Humboldt McKay Camp South Fork Mountain 1676 Comment
  POM48088  Polygonum convolvulus J. B. Feudge 1923-7-22 66 Humboldt At Fortuna. 15 Comment
  CAS-BOT-BC414465  Polygonum douglasii Joseph P. Tracy 1932-7-11 10399 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  SEINET3405795 Image available Polygonum douglasii Joseph P. Tracy 1940-8-25 16707 Humboldt High prairie, on Bald Mountain 1067 Comment
  UC1101205  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-9 1232 Humboldt Town of Blue Lake; s side Comment
  CAS-BOT-BC418616  Polygonum majus Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  UCD100508  Polygonum paronychia Linda M. Barker 1976-5-13 1487 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD100526  Polygonum paronychia James Payne Smith Jr.; Advanced Plant Taxonomy Class 1971-10-6 4957 Humboldt End of Murray Road in McKinleyville. Comment
  HSC97963  Polygonum polygaloides subsp. kelloggii Cara Witte 2007-6-13 264 Humboldt Along Forest Service Road 5N04. Near spring by Grouse Mountain. 1583 Comment
  UC672956  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1935-7-28 14316 Humboldt Devil's Hole Trinity Summit (head) 1828 Comment
  CDA2918  Polygonum sachalinense T. C. Fuller 1968-7-3 17447 Humboldt Northeast side of Highway 101 freeway overpass, Fields Landing. 0 Comment
  RSA139174  Polygonum sachalinense T. C. Fuller 1960-8-25 4973 Humboldt W Hwy 101 0.25 mile N of Humboldt Hill Road, Eureka Comment
  HSC98684  Polygonum sawatchense subsp. sawatchense Cara Witte 2007-6-20 312 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  CAS-BOT-BC421006  Polygonum spergulariiforme Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1219 Comment
  UC218626  Polypodium Joseph P. Tracy 1918-4-7 4865 Humboldt mouth of Little River; Northern Coast Ranges 15 Comment
  HSC103989  Polypodium calirhiza M. F. Norman 2015-4-11 21 Humboldt Arcata, Ma-le'l Dunes Comment
  RSA183501  Polypodium glycyrrhiza H. S. Logsdon 1964-5-13 20 Humboldt 4.0 miles northeast of Orick at Boye s Prairie Comment
  SDSU3597  Polypodium glycyrrhiza H. E. Parks 1924-6-1 2837 Humboldt Lawrence Creek, on trees. Comment
  SEINET200797 Image available Polypodium scouleri Frank C. Gregory 1923-8-4 Humboldt Eureka 61 Comment
  SEINET3111376  Polypodium scouleri Unknown 1969-3-30 Humboldt Humboldt State University; Ecol Project site. Comment
  UC906716  Polypodium scouleri Joseph P. Tracy 1942-7-26 17291 Humboldt headwater of Grizzly Creek (Redwood House road) 609 Comment
  HSC10823  Polypogon australis D. E. Anderson 1965-5-8 3656 Humboldt W end of bridge over Trinity River, 0.5 mile S of Willow Creek. Comment
  SEINET200575 Image available Polypogon interruptus J. P. Tracy 1938-8-28 16137 Humboldt Trinidad coastal bluffs 0 Comment
  HSC26168  Polypogon monspeliensis J. P. Smith 1970-6-7 3798 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC38330  Polypogon monspeliensis P. D. Sorensen 1976-6-11 Humboldt King Salmon. Comment
  CAS-BOT-BC72117  Polystichum californicum Joseph P. Tracy 1933-10-15 13101 Humboldt Miranda, along S. Fork Eel River 91 Comment
  UC1440054  Polystichum californicum Danin & H. G. Baker 1960-9-2 659 Humboldt Ave. of Giants Comment
  UC503068  Polystichum imbricans subsp. imbricans Joseph P. Tracy Jul 16 1930-Jul 19 1930 9089 Humboldt near McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  HSC98592  Polystichum imbricans subsp. imbricans Cara Witte 2008-6-11 707 Humboldt National Forest Road 5N10. 2 miles east of waterhole / Forest Service Road 5N10D. 1315 Comment
  UC1063666  Polystichum munitum H. L. Person 1932-7-10 Humboldt Lindsay Creek; Eureka Quadrangle Comment
  HSC13046  Polystichum munitum Jana Kattenhorn 1970-10-24 123 Humboldt HSU campus S of Building 52 Comment
  HSC35693  Polystichum munitum Thomas W. Nelson 1975-1-16 1749 Humboldt E of HSU campus Comment
  HSC98643  Polystichum munitum Cara Witte 2008-7-10 864 Humboldt Forest Service Road 4N06. 2 miles west of National Forest 1. 1195 Comment
  JEPS64560  Populus trichocarpa W. L. Jepson 1902-8-4 2147 Humboldt Petrolia on the Mattole River, Petrolia (on the Mattole River, Expedition from Ukiah to the Hupa Indian Reservation) Comment
  HSC17777  Potamogeton foliosus J. P. Tracy 1934-8-14 13588 Humboldt S Fork of Eel River, midway between Miranda and Garberville 91 Comment
  UC1099897  Potamogeton pusillus var. pusillus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1162 Humboldt 1 mi s of Fields Landing; Eel River Valley Comment
  HSC90766  Potentilla anserina subsp. pacifica Gail Newton 1982-5-5 2519 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC143072  Potentilla anserina subsp. pacifica Kenneth Clark 1980-5-10 652 Humboldt Western beach of Point Delgada 3 Comment
  HSC57357  Potentilla gracilis var. fastigiata Overton, Butler 1979-7-26 10053 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  CAS-BOT-BC158495  Potentilla gracilis var. gracilis Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC97913  Prosartes hookeri Cara Witte 2007-6-13 268 Humboldt Along Forest Service Rd. 5N04. Approximately 1 mile east of intersection to Grouse Mountain Lookout. 1534 Comment
  HSC97289  Prosartes hookeri M. Mesler 2006-6-24 619 Humboldt NNE of Grouse Mtn., 1.1 mi. from NF 1 1555 Comment
  HSC15467  Prosartes smithii D. A. Shally 1965-5-15 48 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC15484  Prosartes smithii W. R. Brigham 1962-5-20 16 Humboldt Side of Old Hwy. 101, N of Big Lagoon rd. Comment
  SEINET12050891  Prosartes smithii F. H. Utech 1977-1 77 -370 Humboldt ca 4.5 mi S of Del Norte County line on US 101 enroute to Crescent City Comment
  HSC23488  Prunella vulgaris subsp. lanceolata R. A. Vanbianchi 1971-9-24 87 Humboldt Comment
  HSC27044  Prunella vulgaris subsp. lanceolata Brad Klipfel 1973-8-25 291 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  UC1321005  Prunella vulgaris var. vulgaris Andrew P. Nelson 1960-1 629 -2 Humboldt Comment
  UC154253  Prunus emarginata Joseph P. Tracy 1906-4-15 2402 Humboldt near Blue Lake (on Mad River); Northern Coast Ranges, Mad River 30 Comment
  UC492201  Prunus emarginata Joseph P. Tracy 1932-7-13 10527 Humboldt at Corral Prairie, Trintiy Summit, Klamath Mountains Corral Prairie; Klamath Mountains, Trintiy Summit 1524 Comment
  RSA46894  Prunus virginiana var. demissa Doris K. Kildale 1927-5-20 3240 Humboldt Bug Creek. Comment
  UC14175  Prunus virginiana var. demissa W. C. Blasdale 1896-6-8 Humboldt Mad River Comment
  CAS-BOT-BC357269  Pseudognaphalium microcephalum Joseph P. Tracy 1938-8-14 16111 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC582511  Pseudognaphalium stramineum Joseph P. Tracy 1937-6-26 15364 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC55105  Pseudotsuga menziesii var. menziesii G. L. Clifton 1979-7-31 11847 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  NY63912  Pseudotsuga menziesii var. menziesii J. P. Tracy 1932-3-19 9789 Humboldt Blue Slide, on Van Duzen River Comment
  UC709421  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1941-4-11 16859 Humboldt Willow Creek Canyon; along Trinity Highway 609 Comment
  CAS-BOT-BC94826  Psilocarphus tenellus var. tenellus R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 828 Humboldt Humboldt Redwoods S.P., Luke Prairie, N of Mattole Rd., about 3 air mi. W of Highway 101 152 Comment
  HSC54542  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-7-23 9526 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC99408  Pteridium aquilinum var. pubescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 57 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1197761  Pterospora andromedea Joseph P. Tracy 1947-7-9 17857 Humboldt Horse Mt. 1432 Comment
  SBBG5361  Pyrola aphylla H. and M. Dearing 1939-6-28 3731 Humboldt near Dinsmore Comment
  CAS-BOT-BC460595  Pyrola aphylla Henry M. Pollard 1948-7-23 s.n. Humboldt Perch Creek canyon near Orleans Comment
  HSC59503  Pyrola asarifolia M. A. Ericksen 1979-5-29 306 Humboldt Beside Patrick's Point Dr. Comment
  HSC76592  Pyrola crypta Denis Kearns 1981-7-24 449 Humboldt Near Whiteys Peak. 1768 Comment
  UC314638  Pyrola picta Joseph P. Tracy 1926-6-6 7556 Humboldt near summit on road w from Hoopa to Bair's, Hoopa Mountain, Northern Coast Ranges Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC1197568  Pyrola picta Joseph P. Tracy 1908-7-30 2777 Humboldt Northwest slope pf Buck Mountain 914 Comment
  CAS-BOT-BC62627  Quercus chrysolepis Doris K. Kildale 1926-12-19 2879 Humboldt Briceland Bridge, 1/2 mile west of Garberville 114 Comment
  HSC40858  Quercus chrysolepis Thomas W. Nelson 1976-7-9 2988 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  HSC99031  Quercus chrysolepis Cara Witte 2008-7-3 827 Humboldt Friday Ridge Road/ 6N08. Approximately 1 mile north of intersection with National Forest 1. 1567 Comment
  UC478893  Quercus chrysolepis Marcus E. Jones, A. M. 1931-7-16 28845 Humboldt near Trinity River (Burnt Ranch) Comment
  UC5535  Quercus chrysolepis unknown 1867-6-17 Humboldt Elk Ridge Comment
  HSC8258  Quercus kelloggii R. E. Thill 1965-5-15 30 Humboldt 3 mi W of Berry Summit on Hwy. 299 Comment
  UCD165091  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 28.4 mi. from Garberville along Alderpoint Rd. 330 Comment
  HSC72682  Quercus sadleriana J. P. Smith 1977-7-3 9264 Humboldt Onion Lake Comment
  CAS-BOT-BC104536  Quercus vacciniifolia Doris K. Kildale 1925-8-18 1220 Humboldt Trinity Summit 1828 Comment
  HSC85452  Quercus vacciniifolia Andrew Buchanan, et al. 1986-6-6 101 Humboldt Titlow Hill Rd. and ski area exit Comment
  UC275513  Quercus wislizeni Joseph P. Tracy 1923-10-14 6576 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  UC1196259  Ranunculus alismifolius Joseph P. Tracy 1912-7-31 3905 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  HSC73696  Ranunculus alismifolius var. hartwegii M. A. Baker 1980-7-19 2999 Humboldt Near Bret Hole. 1814 Comment
  UC1196276  Ranunculus bulbosus J. P. Tracy 1899-5-1 297 Humboldt 6th and G streets Immediate vicinity of Eureka (in gulch) 0 Comment
  SEINET13716687  Ranunculus californicus Unknown 1916-4-30 4681 Humboldt Around Humboldt Bay Comment
  UC1196236  Ranunculus californicus Joseph P. Tracy 1912-5-5 3578 Humboldt Eureka Northern Coast Region 0 Comment
  HSC26468  Ranunculus californicus var. cuneatus T. O. Osborne 1970-4-8 7 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  HSC100903  Ranunculus macranthus Carl C. Marshall Apr 1886 172 Humboldt Damp soils near bay. Comment
  BLMAR650  Ranunculus occidentalis Jennifer Wheeler 2012-5-9 650 Humboldt Lacks Creek, Beaver Ridge Road 865 Comment
  HSC70255  Ranunculus occidentalis M. A. Baker 1980-6-8 1922 Humboldt Near Buck Flat. 1554 Comment
  JEPS55004  Ranunculus occidentalis Lincoln Constance 1934-5-24 645 Humboldt Bull Creek Region South Fork Eel River 121 Comment
  UC1196220  Ranunculus occidentalis Joseph P. Tracy 1908-6 2688 1/2 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1196222  Ranunculus occidentalis Joseph P. Tracy 1918-5-1 4912 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC100620  Ranunculus occidentalis Carl C. Marshall May 1886 95 Humboldt Near Scottsville. Comment
  UC1222571  Ranunculus occidentalis Joseph P. Tracy 1951-5-6 19396 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  HSC48638  Ranunculus occidentalis var. occidentalis Mark Flippo 1978-5-20 78 Humboldt USFS Rd. 8N10 Comment
  HSC53893  Ranunculus orthorhynchus Griswold, Butler 1979-7-11 6394 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  POM126167  Ranunculus orthorhynchus Joseph P. Tracy 1922-5-21 6050 Humboldt Fieldbrook. 61 Comment
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Oct 27 2009
  HSC18177  Ranunculus repens var. repens L. H. Myers 1963-4-19 44 Humboldt Dunes W of Lanpheres Rd., Mad River slough area Comment
  HSC18180  Ranunculus repens var. repens D. E. Anderson 1961-8-13 1740 Humboldt Arcata lawn weed, 1497 Beverly Rd. Sunny Brae 15 Comment
  POM145526  Ranunculus sardous J. B. Feudge 1923-7-22 140 Humboldt At Fortuna. 15 Comment
  UC1193393  Rhamnus californica R. H. Neuns 1950-10-9 134 Humboldt near Thorne 609 Comment
  JEPS42009  Rhamnus californica subsp. californica W. L. Jepson 1903-6-19 2206 Humboldt Briceland, s Humboldt County Briceland Comment
  UC709447  Rhamnus californica subsp. occidentalis Joseph P. Tracy 1941-9-4 17012 Humboldt along Trinity Highway Willow Creek Canyon 609 Comment
  JEPS41976  Rhamnus purshiana W. L. Jepson 1936-8-18 17942 Humboldt Wildcat Ridge, w Humboldt Co. Wildcat Ridge Comment
  RSA8096  Rhamnus tomentella subsp. tomentella Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  UCSB21216  Rhododendron occidentale Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  CAS-BOT-BC200389  Rhododendron occidentale var. paludosum E. A. McGregor 1921-8-17 s.n. Humboldt On old grade, S.E. of Orick Comment
  HSC7892  Rhododendron occidentale var. paludosum Francis Winter 1960-5-6 Humboldt Across from Azalea State Park Entrance Comment
  CAS-BOT-BC433130  Ribes Doris K. Kildale 1927-5-15 3298 Humboldt Petrolia Comment
  HSC103228  Ribes binominatum Jade Paget-Seekins 2010-6-13 19 Humboldt Groves Prairie. From the campsite next to the prairie walk almost to the end of the prairie, turn right, walk down the slope towards the creek. 1254 Comment
  UC1198905  Ribes bracteosum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9098 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC108906  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1939-4-27 16226 Humboldt Mouth of Little River. 6 Comment
  JEPS25431  Ribes inerme var. klamathense Joseph P. Tracy 1941-3-26 16813 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  UC1198951  Ribes inerme var. klamathense Joseph P. Tracy 1935-5-30 13915 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC103197  Ribes lacustre Jade Paget-Seekins 2010-7-5 38 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  HSC99025  Ribes lacustre Cara Witte 2008-7-1 781 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  RSA0021102  Ribes lacustre Thomas W. Nelson, Jane P. Nelson 1977-6-19 3490 Humboldt [Mount] Lassic. 1616 Comment
  CAS-BOT-BC176805  Ribes laxiflorum Alice Eastwood 1907-4-22 45 Humboldt Near [Orricks] Orick Comment
  CAS-BOT-BC173361  Ribes lobbii Lincoln Constance; Reed C. Rollins 1942-5-11 2864 Humboldt Near summit 8 miles east of Blue Lake Comment
  HSC39684  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2737 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  HSC41309  Ribes lobbii Brad Klipfel 1974-6-25 410 Humboldt Horse Mtn. Comment
  JEPS49356  Ribes lobbii W. L. Jepson 1902-7-16 2038 Humboldt Trinity Summit 2133 Comment
  UC902101  Ribes lobbii Joseph P. Tracy 1942-6-23 17234 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC492233  Ribes marshallii Joseph P. Tracy 1932-7-15 10580 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UC1198934  Ribes menziesii Joseph P. Tracy 1918-5-12 4933 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC154124  Ribes menziesii J. P. Tracy 1909-2-14 2941 Humboldt immediate vicinity Eureka 0 Comment
  UC583437  Ribes menziesii Elmer I. Applegate 1931-3-28 6625 Humboldt Trinidad, type locality Trinidad Comment
  RSA0021766  Ribes menziesii Joseph P. Tracy 1921-4-4 5428 Humboldt Near Korbel, at Camp Bauer. 30 Comment
  RSA0021767  Ribes menziesii Joseph P. Tracy 1948-3-6 17954 Humboldt Trinidad. 61 Comment
  RSA0021773  Ribes menziesii E. R. Johnson 1929-08 1405 Humboldt 5 miles above Blue Lake on road to Willow Creek. 152 Comment
  BLMAR666  Ribes menziesii var. menziesii Jennifer Wheeler 2012-7-12 666 Humboldt King range, Strawberry rock 253 Comment
  SEINET3825262 Image available Ribes nevadense Joseph P. Tracy 1932-7-18 10716 Humboldt Head of Brett Hole 1829 Comment
  HSC74469  Ribes roezlii Gail Newton 1980-7-23 1719 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC45099  Ribes roezlii var. amictum R. Sutherland 1978-4-23 15 .23478 Humboldt 716 Comment
  HSC20279  Ribes roezlii var. cruentum B. R. Templeton 1962-5-24 Humboldt 18 mi. W of Willow Creek, N of Hwy. 299 Comment
  JEPS49459  Ribes roezlii var. cruentum Joseph P. Tracy 1922-4-30 6041 Humboldt mountain slopes along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges, Three Creeks 670 Comment
  UC1198943  Ribes roezlii var. cruentum Joseph P. Tracy 1927-3-27 7871 Humboldt East Fork of Willow Creek Northern Coast Ranges, Willow Creek Canyon 457 Comment
  CAS-BOT-BC211978  Ribes sanguineum Joseph P. Tracy 1948-8-15 18133 Humboldt On ridge 2 miles east of Grove's Prairie, Trinity Summit 1554 Comment
  CAS-BOT-BC144693  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-5-1 3116 Humboldt Blocksburg 518 Comment
  HSC22045  Ribes sanguineum var. glutinosum B. D. Rogers, D. E. Anderson 1965-4-1 411 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  HSC39950  Ribes sanguineum var. glutinosum Linda M. Barker 1976-3-22 1334 Humboldt 3 mi. W of Arcata Comment
  HSC49912  Ribes sanguineum var. glutinosum Maralyn O'Meara 1973-2-19 189 Humboldt McKinleyville, Murray Rd. Comment
  RSA0018242  Ribes sanguineum var. glutinosum E. R. Johnson 1929-08 1413 Humboldt Arcata Redwood Park. 76 Comment
  CAS-BOT-BC173991  Ribes viscosissimum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC74207  Ribes viscosissimum M. A. Baker 1980-7-19 3026 Humboldt Near Bret Hole. 1814 Comment
  UC165854  Rigiopappus leptocladus Joseph P. Tracy 1903-5-23 1893 Humboldt Alder Point Northern Coast Ranges 243 Comment
  JEPS1245  Romanzoffia californica Joseph P. Tracy 1924-4-27 6645 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UC1222365  Romanzoffia californica Joseph P. Tracy 1950-6-15 18818 Humboldt at Huestis Rock on n.e. side Mail Ridge Comment
  UCD120747  Romanzoffia californica R. Raynor 1935-4-8 s.n. Humboldt Ft. Seward. Comment
  JEPS2836 Image available Romanzoffia tracyi Joseph P. Tracy 1933-5-9 11008 Humboldt wet slide on bluff near Ocean; Northern Coast Region, Vicinity of Trinidad; Vicinity of Trinidad, Humboldt Co. 15 Comment
  CAS-BOT-BC74513  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9667 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC552285  Rorippa curvisiliqua Joseph P. Tracy 1934-7-30 13500 Humboldt along coast in front of s end Stone Lagoon (Dry Lagoon); along coast in front of s end Stone Lagoon 3 Comment
  UC154495  Rosa Harley P. Chandler June, 1901 1334 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC19646  Rosa gymnocarpa D. E. Anderson 1965-5-15 3711 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC32264  Rosa gymnocarpa J. O. Sawyer 1970-6-24 2249 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC44327  Rosa gymnocarpa Brad Klipfel 1975-6-17 667 Humboldt Horse Mtn. Comment
  UC162330  Rosa gymnocarpa Joseph P. Tracy 1911-7-7 3428 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow and Campbell Creeks, near summit) 1219 Comment
  HSC98852  Rosa gymnocarpa var. serpentina Cara Witte 2008-6-18 748 Humboldt Horse Mountain Botanical Area. Approximately 1 mile east of junction 6N36 and 6N36A. 1394 Comment
  CAS-BOT-BC146843  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  UC1541247  Rosa nutkana var. nutkana H. E. Parks July 1933 4698 Humboldt vicinity of Trinidad Comment
  UC183613  Rosa nutkana var. nutkana Joseph P. Tracy 1912-10-20 4000 Humboldt Alton Northern Coast Region 30 Comment
  CAS-BOT-BC146880  Rosa rubiginosa C. B. Wolf 1931-8-28 2363 Humboldt 1/8 mile from Rohnerville on road to Fortuna 30 Comment
  CAS-BOT-BC148222  Rosa spithamea Volney Rattan 1883-6-1 s.n. Humboldt Trinity River, Coast Mts. North of San Francisco Bay Comment
  UCD17685  Rubus H. Olmo; T. S. Mallah 1953-4-3 53 58 Humboldt California. Humboldt County: 300 yards west of junction of State 1 and Redwood Highway, across from Justice Court of Long Valley. Comment
  HSC99891  Rubus armeniacus Bill Wood 2011-8-19 Humboldt Eureka; corner of Myrtle Ave. and Bettie Lane Comment
  POM366457  Rubus laciniatus Thekla Mohr 1900-07 s.n. Humboldt Eel River Comment
  CAS-BOT-BC148384  Rubus leucodermis Doris K. Kildale 1927-7-3 3662 Humboldt Willow Creek Flat 152 Comment
  UC492168  Rubus leucodermis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8905 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC147241  Rubus parviflorus E. A. McGregor 1921-8-17 s.n. Humboldt On old abandoned road grade S.E. of Orick Comment
  UC906703  Rubus parviflorus Harold E. Parks and Joseph P. Tracy 1942-5-16 11562 Humboldt vicinity Garberville; vicinity of Garberville 152 Comment
  CAS-BOT-BC147360  Rubus pensilvanicus Henry M. Pollard 1948-8-9 s.n. Humboldt Near Orleans Comment
  UC303160  Rubus spectabilis Joseph P. Tracy 1923-4-15 6192 Humboldt Berry's Northern Coast Ranges, , Berry's (Redwood Creek) 274 Comment
  UC902133  Rubus spectabilis Joseph P. Tracy 1948-5-15 17979 Humboldt along Trinity Highway (Willow Creek Canyon, East Fork Willow Creek); Willow Creek Canyon, East Fork Willow Creek 457 Comment
  HSC40001  Rubus ursinus J. O. Sawyer 1970-6-27 2308 Humboldt Site 318. 1494 Comment
  HSC55314  Rubus ursinus Griswold, Butler 1979-7-11 7024 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC57045  Rubus ursinus Overton, Butler 1979-7-24 9694 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UCD17612  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 053 Humboldt California. Humboldt County: 6 miles from Dyerville junction of U.S. 101, on road to Weitchpec. Comment
  SEINET5710897  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  SEINET5710900  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC64433  Rumex acetosella J. P. Smith 1971-10-6 4943 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1541398  Rumex acetosella W. K. Parks Jun 1932 Humboldt vicinity Trinidad Comment
  UCD100980  Rumex acetosella Linda M. Barker 1976-5-13 1483 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC17572  Rumex acetosella R. D. Modafferi 1965-3-19 33 Humboldt 0.9 mi. S of Trinidad on Hwy. 101 305 Comment
  HSC37233  Rumex acetosella Lon Hall 1975-6-19 399 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC102639  Rumex californicus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1623 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC99572  Rumex californicus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 237 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
  JEPS39909  Rumex conglomeratus W. L. Jepson 1936-8-17 17928 Humboldt 2.5 mi s Fields Landing Comment
  RSA53799  Rumex conglomeratus H. M. Pollard 1945-8-24 s.n. Humboldt Between Orleans and Camp Creek Klamath River Canyon. Comment
  UC7023  Rumex pulcher H. N. Bolander Jun 1867 6568 Humboldt Shelter Cove Comment
  CAS-BOT-BC434096  Rumex transitorius L. R. Abrams 1918-6-16 7165 Humboldt Willow Creek Comment
  CAS-BOT-BC454158  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 Comment
  UC275481  Sagina apetala Joseph P. Tracy 1925-5-30 7015 Humboldt at Kemp's Maple Grove Ranch Bridgeville; Northern Coast Ranges, , Kemp's Maple Grove Ranch 228 Comment
  JEPS51070  Sagina procumbens W. L. Jepson 1921-8-7 9337 Humboldt Stone Lagoon Humboldt Coast, Stone Lagoon Comment
  CAS-BOT-BC103814  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01234 Humboldt On floodplain of the Van Duezn River, 1 1/2 miles east of Alton 30 Comment
  CAS-BOT-BC103822  Salix exigua Harold E. Parks; Joseph P. Tracy 1931-5-17 0967 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC6088  Salix exigua Harold Ernest Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  UC1196561  Salix exigua J. P. Tracy 1900-9-9 943 Humboldt Yager Creek near Hydesville (along a slough) 91 Comment
  SBBG58913  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1336 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  UC490574  Salix exigua var. hindsiana Joseph P. Tracy 1932-7-31 10289 Humboldt along Eel R. from S. Fork to Scotia (mouth of Larrabee Creek); Northern Coast Ranges 60 Comment
  CAS-BOT-BC104098  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0975 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC106853  Salix hookeriana Jim Davis 1933-4-25 8 Humboldt Samoa Comment
  CAS-BOT-BC106861  Salix hookeriana W. J. Ferlatte 1967-6-13 1117 Humboldt near mouth of Mad River 3 Comment
  CAS-BOT-BC107678  Salix hookeriana L. R. Abrams; G. T. Benson 1924-5-17 10732 Humboldt Lagoon between the Mad and Little Rivers Comment
  CAS-BOT-BC107728  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CHSC9656  Salix hookeriana E. L. Smith 1971-8-18 1026 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  HSC19963  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-15 1103 Humboldt Near mouth of the Little River Comment
  HSC19967  Salix hookeriana J. R. Woodside 1963-2-17 45 Humboldt 1.25 mi. N of Fairhaven Comment
  HSC96362  Salix hookeriana Gordon Leppig 1999-7-9 1184 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  POM161042  Salix hookeriana Joseph P. Tracy 1926-11-21 7831 Humboldt Near mouth of Little River. 6 Comment
  POM219558  Salix hookeriana H. E. Parks 1931-3-24 912 Humboldt Fortuna. Eel River. 10 Comment
  RSA342503  Salix hookeriana Robert F. Thorne, Percy C. Everett 1965-8-9 35299 Humboldt Big Lagoon. 3 Comment
  SBBG59110  Salix hookeriana H. E. Parks -Aug-1931 1053 Humboldt Little River Lagoon Comment
  SBBG59112  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-7 1103 Humboldt Little River Lagoon Comment
  UC275495  Salix hookeriana Joseph P. Tracy 1925-11-1 7303 Humboldt Shiveley Northern Coast Ranges, Shiveley 60 Comment
  UC303032  Salix hookeriana Joseph P. Tracy 1926-3-14 7391 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC481388  Salix hookeriana Harold E. Parks 1931-3-24 915 Humboldt Trinidad 90 Comment
  UC504061  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 8 Humboldt Samoa Comment
  UC506505  Salix hookeriana Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC511999  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1238 Humboldt floodplain of Van Duzen R. at Blue Slide 91 Comment
  UC512081  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1224 Humboldt 1 mi n Samoa (pine barrens near the coast) Comment
  UC512095  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1214 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC518895  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 9 Humboldt Samoa Comment
  UC519333  Salix hookeriana Joseph P. Tracy 1933-5-20 12263 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  JEPS14791  Salix jepsonii Joseph P. Tracy 1933-7-16 12773 Humboldt meadow at McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  HSC19978  Salix lasiandra J. W. Johnson 1962-3-7 1171 Humboldt Next to the barn of the Lanphere Farm, Samoa Peninsula Comment
  UC518900  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 3 Humboldt around Eureka Eureka Comment
  UC54675  Salix lasiandra subsp. lasiandra J. P. Tracy 1901-4-7 1013 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC128195  Salix lasiandra var. lasiandra Marcus E. Jones 1924-4-25 s.n. Humboldt Dyerville Comment
  CAS-BOT-BC107105  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt., on TRinity Highway 762 Comment
  CAS-BOT-BC107582  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-13 1255 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107596  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11006 Humboldt On Van Duzen River, two miles west of Bridgeville 228 Comment
  CAS-BOT-BC107613  Salix lasiolepis Harold E. Parks; Susan T. Parks 1931-8-15 1079 Humboldt Blue Slide, Van Duzen River 100 Comment
  HSC20003  Salix lasiolepis J. P. Tracy 1933-4-9 10969 Humboldt Blue Slide, Van Duzen River 91 Comment
  HSC98056  Salix lasiolepis Cara Witte 2007-7-2 395 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  HSC98523  Salix lasiolepis Cara Witte 2007-7-3 409 Humboldt White Oak Opening. 1242 Comment
  JEPS13095  Salix lasiolepis Joseph P. Tracy 1936-10-17 15200 Humboldt on Van Duzen River Blue Slide 91 Comment
  POM219249  Salix lasiolepis H. E. Parks, Susan T. Parks 1931-8-15 1079 Humboldt Blue Slide. Van Duzen River. 100 Comment
  UC469430  Salix lasiolepis Joseph P. Tracy 1931-9-7 9645 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC490471  Salix lasiolepis Joseph P. Tracy 1932-9-5 10770 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC504027  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1320 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506341  Salix lasiolepis Joseph P. Tracy 1933-4-9 10967 Humboldt Bridgeville, along Van Duzen River 228 Comment
  CAS-BOT-BC107421  Salix lasiolepis var. lasiolepis Alice Eastwood 1913-7-3 3417 Humboldt Bear River, McCourtneys Bridge Comment
  RSA34288  Salix lucida subsp. lasiandra Doris K. Kildale 1927-5-13 3178 Humboldt Redwood Creek at Berry's Comment
  CAS-BOT-BC125538  Salix lutea Arnold Tiehm; Brant Rogers 1978-4-27 4046 Humboldt West entrance to Thousand Creek Gorge, 1.2 road miles northeast of Virgin Valley Campground 1463 Comment
  CAS-BOT-BC125616  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt At the junction of the North and South forks of Eel River Comment
  POM220111  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 974 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SD909  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC176691  Salix melanopsis Joseph P. Tracy 1913-6-18 4198 Humboldt Dinsmore's Ranch opposite Buck Mt.; North Coast Ranges, Van Duzen R. Valley 762 Comment
  UC469451  Salix melanopsis Joseph P. Tracy 1931-6-14 9581 Humboldt Van Duzen R., Alton Alton; Northern Coast Region, Van Duzen R., Alton 30 Comment
  UC481171  Salix melanopsis Harold E. Parks 1931-8-25 1061 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC481266  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Roosevelt Hwy. Bridge; Little River Lagoon Comment
  UC481294  Salix melanopsis Harold E. Parks 1931-5-14 965 Humboldt between Alton and Carlotta (Van Duzen R.); Van Duzen R. 15 Comment
  UC481356  Salix melanopsis Harold E. Parks 1931-5-14 956 a Humboldt Van Duzen R. above Bridgeville; Van Duzen R. 300 Comment
  UC490556  Salix melanopsis C. R. Ball, H. E. Parks and Joseph P. Tracy 1932-5-17 10069 Humboldt Redwood Creek at Berrys; North Coast Ranges, Redwood Creek 274 Comment
  UC511972  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1252 Humboldt Mad River at Engelhart gravel pit (2 mi. e. of Redwood Hwy. and above Blue Lake Rd.) Comment
  UC519365  Salix melanopsis Joseph P. Tracy 1933-6-11 12550 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  UC726592  Salix melanopsis A. A. Heller 1923-7-10 13796 Humboldt between Scotia and Pepperwood (Eel R.); Eel R. Comment
  CAS-BOT-BC129249  Salix piperi Joseph P. Tracy 1941-3-9 16800 Humboldt Camp Grant, along Eel River 48 Comment
  CAS-BOT-BC129211  Salix piperi Doris K. Kildale 1926-5-31 2050 Humboldt On road from Junction to Hopland Comment
  CAS-BOT-BC129133  Salix scouleriana Harold E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC129169  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt Rocky exposed places, head of Devil's Hole - Trinity Summit, Klamath Mountains 1828 Comment
  JEPS14777  Salix scouleriana Joseph P. Tracy 1933-4-2 10956 Humboldt Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 304 Comment
  SBBG57977  Salix scouleriana H. E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay Comment
  UC1173583  Salix scouleriana Joseph P. Tracy 1935-7-26 14256 Humboldt at Water-dog Lakes Trinity Summit 1889 Comment
  UC1173628  Salix scouleriana Joseph P. Tracy 1936-2-2 14769 Humboldt vicinity of Carlotta 30 Comment
  CAS-BOT-BC126273  Salix sessilifolia H. E. Parks; Joseph P. Tracy 1934-7-25 11090 Humboldt Trinity River Valley, at Willow Creek 152 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-BC128996  Salix sitchensis Joseph P. Tracy 1931-9-19 9683 Humboldt Alton, Van Duzen River 30 Comment
  HSC99439  Salix sitchensis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 89 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS12955  Salix sitchensis Joseph P. Tracy 1931-9-19 9683 Humboldt Van Duzen River Alton; Northern Coast Region, Van Duzen River 30 Comment
  JEPS38498  Salix sitchensis Milo S. Baker 1923-7-23 89 Humboldt Manning Creek Comment
  POM161040  Salix sitchensis Joseph P. Tracy 1926-12-5 7833 Humboldt Blue Slide on van Duzen River. 91 Comment
  UC1196724  Salix sitchensis Joseph P. Tracy 1926-2-21 7356 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC1356345  Salix sitchensis Theodore J. Crovello 1965-4-8 669 Humboldt 2.5 mi. s. of turnoff to Prairie Creek Redwood State Park (along Lost Man Creek at junction with U.S. 101); Lost Man Creek Comment
  UC212996  Salix sitchensis Joseph P. Tracy 1919-9-25 5300 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC1173598  Salix tracyi Joseph P. Tracy 1936-3-29 14785 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  CAS-BOT-BC235016  Sambucus Volney Rattan 1878-1-1 s.n. Humboldt 3 mi. E Eureka Comment
  HSC44536  Sambucus nigra subsp. caerulea Brad Klipfel 1973-7-1 144 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET3103511  Sambucus racemosa var. racemosa Steve Selva, Rodger Jensen 1974-8-28 99 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  HSC89430  Sanicula arctopoides P. A. Daly 1984-5-8 9 Humboldt Trinidad Head. 61 Comment
  HSC91933  Sanicula arctopoides E. Mackey 1987-6-11 Humboldt Patrick's Point State Park, Palmer's Point trail to beach Comment
  JEPS184  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  JEPS220  Sanicula bipinnatifida Lincoln Constance 1934-6-3 806 Humboldt road from High Rock to Horse Prairie ((<High Rock> on Redwood Hwy, 1 mi n of Dyerville)); South Fork Eel River, Bull Creek Region Comment
  HSC39444  Sanicula crassicaulis Linda M. Barker 1976-6-1 1540 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CHSC60487  Sanicula tracyi Lisa D. Hoover 1992-6-16 Humboldt Six Rivers National Forest. East side of Whiting Ridge off Route 1 before 'Last Chance Ridge' approximately 27 miles off Hwy 299. 1267 Comment
  HSC65889  Sanicula tracyi R. York 1980-5-23 622 Humboldt Near Buck Mtn. 1524 Comment
  UC642303  Sanicula tuberosa Joseph P. Tracy 1927-7-12 8156 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1219 Comment
  HSC31438  Sarcodes sanguinea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5556 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  UC25417  Satureja douglasii J. Burtt Davy 1899-6-11 5412 Humboldt Hubbards Station North Coast Ranges Comment
  HSC55745  Saxifragopsis fragarioides G. L. Clifton, Griswold 1979-7-26 10267 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CAS-BOT-BC111332  Schoenoplectus acutus var. occidentalis Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  UCD60367  Schoenoplectus pungens var. badius Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  JEPS79980  Scirpus cernuus Joseph P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  CDA39124  Scirpus maritimus Gordon Leppig 1999-10-25 1268 Humboldt State Hwy 101, mile marker 61.40 Comment
  UC1103644  Scirpus microcarpus Joseph P. Tracy 1943-7-18 17440 Humboldt along shore Big Lagoon; along shore Big Lagoon 3 Comment
  HSC15632  Scoliopus bigelovii F. B. Plett 1963-4-24 30 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  POM109662  Scoliopus bigelovii Marcus E. Jones 1924-4-28 s.n. Humboldt Scotia. Comment
  CAS-BOT-BC517412  Scoliopus bigelovii Leo Shapovalov; C. Woodhull 1940-3-6 s.n. Humboldt Redwood Creek near Garberville in Humboldt Redwood State Park Comment
  SEINET12050517  Scoliopus bigelovii F. H. Utech 1988-1 88 -019 Humboldt along US 101 near junction of Durphy Creek & South Fork Eel River 60 Comment
  UC147885  Scrophularia californica J. P. Tracy 1906-5-20 2465 Humboldt immediate vicinity Eureka 0 Comment
  HSC21130  Scrophularia californica P. Markle 1962-5-19 49 Humboldt Arcata Community Forest, along trail branching off of cross country track, near old lumber mill Comment
  SEINET12330006  Scrophularia californica F. H. Utech 1986-1 86 -407 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  HSC56430  Scutellaria antirrhinoides Griswold, Butler 1979-7-10 7138 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC98722  Scutellaria antirrhinoides Cara Witte 2008-7-16 918 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1239696  Scutellaria antirrhinoides Joseph P. Tracy 1933-7-9 12654 Humboldt Brannan Mountain; Northern Coast Ranges, Brannan Mountain 1066 Comment
  UC604643  Scutellaria antirrhinoides Joseph P. Tracy 1938-6-9 15875 Humboldt near Blocksburg (2 mi s of town) 304 Comment
  HSC25984  Scutellaria californica Thomas W. Nelson 1970-9-3 228 Humboldt Mad River. Comment
  UC1239701  Scutellaria californica Joseph P. Tracy 1942-7-1 17363 Humboldt opposite Buck Mountain (along the Van Duzen River, Dinsmore's); Van Duzen River, Dinsmore's 762 Comment
  UC1222179  Sedum Joseph P. Tracy 1950-6-8 18715 Humboldt bluffs at the Sand Cut Wildcat Road 2 mi s Ferndale; s of Ferndale 304 Comment
  HSC58203  Sedum laxum Walter Overton 1979-8-1 12309 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  HSC64137  Sedum laxum subsp. heckneri J. O. Sawyer, J. P. Smith, R. J. Cole 1977-7-2 3053 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  CAS-BOT-BC63790  Sedum radiatum subsp. radiatum Doris Kildale Gillespie 1931-6-7 10602 Humboldt Soth Forb Mt. Blake Lookout. 1726 Comment
  CAS-BOT-BC63827  Sedum spathulifolium L. R. Abrams 1922-6-25 8294 Humboldt Bluffs north of Big Lagoon. Comment
  HSC40630  Sedum spathulifolium var. spathulifolium Thomas W. Nelson, Jane P. Nelson 1977-5-15 3379 Humboldt Beside Hwy. 36 just W of Grizzly Creek Campground 152 Comment
  HSC48308  Sedum spathulifolium var. spathulifolium R. Sutherland 1978-4-23 11 .23478 Humboldt Telegraph Ridge N of Green Ridge 695 Comment
  HSC89451  Selaginella oregana P. A. Daly 1986-3-12 85 Humboldt Trinidad Head 61 Comment
  UC503073  Selaginella oregana Joseph P. Tracy 1928-4-29 8426 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  RSA275307  Senecio elegans Thomas W. Nelson 1978-4-23 3880 Humboldt Adventive on coastal dunes northwest of Samoa Comment
  UC581696  Senecio glomeratus Joseph P. Tracy 1934-6-19 13234 Humboldt vicinity Carlotta 30 Comment
  CAS-BOT-BC364022  Senecio integerrimus var. major Doris K. Kildale 1928-5-19 5173 Humboldt Chalk Mountain Comment
  UC581707  Senecio integerrimus var. major Joseph P. Tracy 1932-7-12 10430 Humboldt Corral Prairie Trinity Summit 1584 Comment
  JEPS37228  Senecio integerrimus var. major W. L. Jepson 1902-6-19 1888 Humboldt Ft. Seward Ranch 1219 Comment
  UC205181  Senecio minimus Joseph P. Tracy 1919-8-31 5185 Humboldt Eureka Northern Coast Ranges,Eureka Comment
  SBBG8070  Senecio minimus H. and M. Dearing 1939-6-23 3697 Humboldt 12 mi E of Arcata Comment
  UC1199235  Senecio sylvaticus Joseph P. Tracy 1934-8-31 13652 Humboldt along road through woods Kneeland Prairie Kneeland Prairie 762 Comment
  UC581750  Senecio triangularis Joseph P. Tracy 1933-7-25 12846 Humboldt Grouse Mountain North Coast Ranges, Grouse Moutain 1524 Comment
  UC249833  Senecio triangularis Joseph P. Tracy 1924-7-4 6702 Humboldt Snow Camp , Snow Camp (Northern Coast Ranges) 1371 Comment
  BLMAR59  Senecio vulgaris Jennifer Anthony-Wheeler 1994-3-17 59 Humboldt Samoa/manilla dunes, growing alongside OHV trail on S.end of BLM prop 12 Comment
  CAS-BOT-BC85839  Sequoia sempervirens Rudolf W. Becking 1968-11-27 s.n. Humboldt Weott, Humboldt Redwoods State Park, Federation Grove. Comment
  NY64458  Sequoia sempervirens J. P. Tracy 1935-12-8 14764 Humboldt Near Korbel 304.8 Comment
  NY64510  Sequoia sempervirens R. R. Wilson 1938-4-14 189 Humboldt Near Redway Comment
  SD43483  Sequoia sempervirens Carl B. Wolf 1944-10-25 11469 Humboldt along the Eel River Valley, Redwood Highway, 2.4 miles south of Scotia 60 Comment
  SEINET3876316 Image available Sequoia sempervirens Jack D. Brotherson 1982-7-14 3314 Humboldt Ca 25 miles north of Arcata along U.S. Hwy 101.; 0 Comment
  SEINET11739296  Sequoia sempervirens R. J. Mastrogiuseppe 1966-1 s.n. Humboldt along state route 229 from Arcata to Redding, Demonstration Forest, Simpson Timber Co Comment
  UC170179  Sidalcea asprella Harley P. Chandler June, 1901 1438 Humboldt Klamath River North Coast Ranges, Klamath River Comment
  RSA46866  Sidalcea malviflora subsp. patula Doris K. Kildale 1927-7-10 s.n. Humboldt Gans Prairie, Bald Mountain Comment
  HSC104338  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 9 Humboldt McKinleyville; Dow's Prairie, near Arcata Airport 61 Comment
  JEPS67258  Sidalcea oregana subsp. eximia W. L. Jepson 1921-8-7 9324 Humboldt Dow's Prairie Comment
  HSC103762  Silene M. R. Mesler, Sydney Carothers 2013-6-3 1481 Humboldt Near Castle Rock on FS 5N40 about 3.2 miles from NF 60 1248 Comment
  HSC41202  Silene bernardina Thomas W. Nelson, Jane P. Nelson 1977-7-4 3602 Humboldt Along old trail above Alder Springs 1555 Comment
  RSA78056  Silene californica P. A. Munz 1952-3-27 17800 Humboldt Boise Creek Public Camp west of Willow Creek. 366 Comment
  UC668089  Silene gallica Joseph P. Tracy 1931-5-3 9350 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  CAS-BOT-BC387079  Silene gallica Doris K. Kildale 1926-5-16 1844 Humboldt Lindsey Creek in Lower Mad River Comment
  HSC84003  Silene gallica L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 225 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  UC427880  Silene hookeri H. E. Parks, J. P. Tracy 1930-5-25 791 Humboldt Laribee Valley 792 Comment
  RSA502370  Silene hookeri D. W. Taylor 1971-5-12 1064 Humboldt At the junction of the Trinity and New Rivers, 305 Comment
  CAS-BOT-BC389062  Silene laciniata subsp. californica A. M. Vollmer; L. Beane 1951-6-6 126 Humboldt On road between Orick and Weitchpec Comment
  SEINET3876405  Sisyrinchium bellum Thomas Nelson 1971-5-9 433 Humboldt Beside highway 36 opposite Goat Rock ca. 1 mi. west of Bridgeville.; 0 Comment
  HSC62863  Sisyrinchium californicum J. M. DiTomaso 1979-5-20 1047 Humboldt Big Lagoon Park, 8 mi. N of Trinidad Comment
  UC30080  Smilacina stellata Joseph Burtt Davy Jun 21 1899-Jun 23 1899 5834 Humboldt 300 ft below summit; Trinity Summit Comment
  HSC21296  Solanum aviculare A. H. Teshima 1963-4-20 21 Humboldt Moonstone Beach area Comment
  CAS-BOT-BC83504  Solanum lycopersicum Henry M. Pollard 1948-7-21 s.n. Humboldt Orleans Comment
  RSA15565  Solidago canadensis subsp. elongata C. B. Wolf 1927-8-29 1198 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  HSC58149  Solidago elongata G. L. Clifton, Griswold 1979-8-2 12196 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC75261  Solidago elongata J. O. Sawyer, M. A. Ericksen 1980-8-18 4055 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  JEPS32394  Solidago elongata Lincoln Constance 1934-6-25 925 Humboldt on Redwood Highway 4 mi n of Dyerville and n boundary Humboldt Redwood Park (Englewood, Bull Creek Region, South Fork Eel River); South Fork Eel River, Bull Creek Region, Englewood Comment
  UC1199322  Solidago elongata Joseph P. Tracy 1935-9-1 14751 Humboldt mouth Larrabee Creek (on Eel River); Eel River, mouth of Larrabee Creek 60 Comment
  UC1541616  Solidago elongata Harold E. Parks Jul 1 1931-Aug 1 1931 1056 Humboldt Trinidad 76 Comment
  UC1478656  Solidago spathulata Robert F. Thorne 1974-7-29 45070 Humboldt between Humboldt Bay and Pacific Ocean (Samoa Dunes); Samoa Dunes Comment
  UC727178  Solidago spathulata A. A. Heller 1924-7-22 13872 Humboldt Samoa Comment
Read comments
Sep 29 2006
  UCSB30614  Solidago velutina subsp. californica Edwards, David 1974-8-1 Humboldt About 50 ft. N. of junction of the Mad River and Puter Creek, on the east bank of Mad River, ca. 2 mi. SW of Korbel Comment
  HSC78964  Soliva sessilis L. P. Janeway, K. Berg 1984-4-11 721 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  UC1199365  Sonchus asper Joseph P. Tracy 1935-5-19 13809 Humboldt near Myers (South Fork Eel River, North Coast Ranges); North Coast Ranges, South Fork Eel River 91 Comment
  HSC6217  Sonchus asper J. W. Johnson 1962-6-12 1410 Humboldt Arcata; between the foredunes, at foredune 39, Samoa Comment
  UCD136156  Sonchus oleraceus Linda M. Barker 1976-6-1 1546 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC12548  Sonchus oleraceus C. Kline 1970-11-15 77 Humboldt 4.2 mi. N of Trinidad, olf Hwy. 101 Comment
  HSC98505  Sorbus scopulina Cara Witte 2008-7-25 935 Humboldt At intersection with Forest Service Road 5N10C and Forest Service Road 5N10. 1346 Comment
  JEPS397  Sparganium emersum var. emersum Joseph P. Tracy 1934-7-30 13507 Humboldt along coast in front of s end Stone Lagoon; Dry Lagoon 3 Comment
  UC176182  Sparganium emersum var. emersum Joseph P. Tracy 1913-9-9 4405 Humboldt near mouth of Little River; Northern Coast Ranges 3 Comment
  UC672885  Sparganium emersum var. emersum Joseph P. Tracy 1928-9-2 8499 Humboldt near Fruitland 609 Comment
  CDA26250  Spartina densiflora G. D. Barbe, Dick Drewery 1988-7-18 4295 Humboldt Between Highway 255 and tide zone, Humboldt Bay, north of Samoa. 0 Comment
  CDA26356  Spartina densiflora G. D. Barbe, T. C. Fuller 1989-6-7 4320 Humboldt Tidal flat 0.4 miles north of Highway 255 bridge, at New Naval Base Road. 0 Comment
  UCR122386  Spartina foliosa George K. Helmkamp, E. A. Helmkamp 2001-7-8 6994 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  CAS-BOT-BC389920  Spergula arvensis Doris K. Kildale 1925-12-6 1820 Humboldt Orick, near mouth of Redwood Creek Comment
  CDA3451  Spergula arvensis T. C. Fuller 1961-9-28 7061 Humboldt 1.5 miles south of Samoa. 0 Comment
  RSA187158  Spergula arvensis John H. Thomas 1966-3-19 11488 Humboldt Southern end of Big Lagoon, just inland from the coast between Eureka and Crescent City. 0 Comment
  RSA0098105  Spergularia rubra H. M. Pollard 1948-7-29 s.n. Humboldt Near Orleans. Comment
  POM160286  Spiraea densiflora Joseph P. Tracy 1926-6-20 7630 Humboldt Horse Mountain. 1463 Comment
  CAS-BOT-BC149617  Spiraea douglasii Milo S. Baker 1927-8-21 2484 b Humboldt [Spagnum] Sphagnum Bog near Bald Mt. 914 Comment
  UC1191500  Spiraea douglasii Malcolm A. Nobs and S. Galen Smith 1949-8-9 1226 Humboldt 1 mi n Arcata (at junction of Highway 101 and Highway 299); Mad River Valley Comment
  UC275298  Spiraea douglasii R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UC162773  Spiranthes romanzoffiana Joseph P. Tracy 1911-8-27 3537 Humboldt Eureka Northern Coast Region 0 Comment
  UC275578  Spiranthes romanzoffiana Joseph P. Tracy with H. E. Parks 1924-8-3 6767 Humboldt Big Lagoon Northern Coast Region 6 Comment
  JEPS63064  Stachys ajugoides var. rigida W. L. Jepson 1934-5-7 16684 Humboldt Dyerville Comment
  UCLA71134  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park Comment
  UCLA71151  Stachys ajugoides var. rigida Huron H. Smith 1911-6-5 3782 Humboldt Camp 20 Vances Comment
  BLMAR186  Stachys bergii Donald Hazlett 1994-6-7 186 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  RSA32011  Stachys rigida subsp. quercetorum A. A. Heller 1937-6-11 s.n. Humboldt Along U.S. Highway 101 between Bishop Pine Lodge and Big Lagoon. Comment
  HSC48831  Stachys rigida var. rigida Brad Klipfel 1973-7-31 253 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC38476  Stachys rigida var. rigida Lon Hall 1975-6-20 392 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  UC465510  Stellaria borealis subsp. sitchana Harley P. Chandler May 1901 1112 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  HSC32339  Stipa lemmonii D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5642 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC38490  Stipa nelsonii subsp. dorei D. E. Anderson, J. P. Smith 1971-6-18 - 1095 Humboldt Horse Mtn. Comment
  UC162599  Streptanthus tortuosus Harley P. Chandler June 1901 1441 Humboldt Klamath River North Coast Ranges 304 Comment
  HSC57893  Streptanthus tortuosus var. tortuosus Walter Overton, Marvin Butler 1979-7-31 11468 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC96249  Streptanthus tortuosus var. tortuosus Kaylea Eickhoff, Cara M. Witte 2005-6-8 4 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  JEPS8452  Streptopus amplexifolius var. americanus Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3417 Humboldt Bald Mountain; at Snow Camp, ridge between Mad River and Redwood Creek (Bald Mountain ridge) 1432 Comment
  UC1103499  Streptopus amplexifolius var. americanus Joseph P. Tracy 1926-6-6 7584 Humboldt head of Pine Creek (Hoopa Mountain, near summit of road w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC17768  Stuckenia pectinata J. P. Tracy 1934-7-20 13462 Humboldt Big Lagoon 3 Comment
  HSC48390  Swertia radiata Brad Klipfel 1973-6-10 114 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58360  Swertia radiata Overton, Butler 1979-8-2 12712 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC269573  Symphoricarpos albus var. laevigatus M. S. Jussel 1931-5-2 83 Humboldt 20 miles north of Garberville Comment
  HSC23753  Symphoricarpos albus var. laevigatus Tim Baroni 1971-7-6 112 Humboldt 2 mi. S of Ferndale on Mattole Rd. Comment
  HSC58128  Symphoricarpos mollis Gilbert Muth 1979-8-1 12121 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC5047  Symphyotrichum chilense J. W. Johnson 1961-8-23 1048 Humboldt Arcata; along the sides of the Lanphere Co. Rd. by Mad River Slough Comment
  UC581687  Symphyotrichum hendersonii Joseph P. Tracy 1937-8-12 15634 Humboldt Snow Camp 1402 Comment
  UC198597  Symphyotrichum hendersonii Joseph P. Tracy 1917-9-1 4836 Humboldt Murphy Meadow Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC57206  Symphyotrichum spathulatum var. spathulatum Griswold, Butler 1979-7-12 7163 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC673095  Symphyotrichum subspicatum Joseph P. Tracy 1940-9-26 16728 Humboldt Eureka 9 Comment
  HSC21151  Synthyris reniformis D. E. Anderson 1963-3-23 2399 Humboldt Bald Mtn. Rd. Comment
  HSC72485  Synthyris reniformis J. P. Smith, J. O. Sawyer 1973-5-12 6707 Humboldt 10.1 mi. from Hwy. 96 on Big Hill Rd. 1372 Comment
  HSC91945  Synthyris reniformis E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, Big Meadow, next to copse Comment
  JEPS9927  Synthyris reniformis Joseph P. Tracy 1923-3-10 6152 Humboldt Van Duzen River, near Grizzly Creek; Van Duzen River 91 Comment
  UC582541  Synthyris reniformis Joseph P. Tracy 1936-2-28 14771 Humboldt Trinidad, on coast Trinidad Comment
  CAS-BOT-BC376722  Tanacetum bipinnatum Paul F. Covel 1939-8-7 1636 Humboldt Beach at Little River Comment
  CAS-BOT-BC376731  Tanacetum bipinnatum Peter H. Raven 1962-8-26 18075 Humboldt Dunes just south of Samoa Comment
  SD148217  Tanacetum camphoratum G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7012 Humboldt Samoa Peninsula, 2.6 miles south of California 255 bridge across Humboldt Bay. 14 Comment
  CDA8893  Tanacetum camphoratum K. Neander, Gordon Leppig, Sylvia Leppig 1998-5-25 789 Humboldt Big Lagoon State Park, between ocean and Big Lagoon. Comment
  RSA0049665  Taraxacum laevigatum Dean Wm. Taylor 2011-5-4 21112 Humboldt Alderpoint Road in the vicinity of the Snowline Fox Farm (Larabee Valley quadrangle placename), vicinity of the road crossing of Knack Creek 341 Comment
  HSC54591  Taxus brevifolia Overton, Butler 1979-7-24 9659 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC63223  Tellima grandiflora M. A. Baker 1978-5-6 511 Humboldt 2 km. S of Weitchpec Comment
  UCD96769  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1948-6-13 18037 Humboldt Larrabee Creek, 7 miles NW of Blocksburg. 304 Comment
  HSC18237  Thalictrum polycarpum S. S. Stutz 1963-5-18 61 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC28198  Thalictrum polycarpum Thomas W. Nelson 1971-5-31 454 Humboldt Adjacent to the Mad River N of Dinsmore Comment
  HSC100622  Thalictrum polycarpum Carl C. Marshall Jun 1887 410 Humboldt Throughout Humboldt County. Comment
  UC302045  Thlaspi californicum Joseph P. Tracy 1926-5-15 7484 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1586873  Thlaspi montanum var. montanum Juha Pykala and D. H. Norris 1987-5-19 710 Humboldt Horse Mountain Road at intersection with ski-lift; Horse Mountain Road 1400 Comment
  CAS-BOT-BC81316  Thuja plicata Doris K. Kildale 1926-11-13 2850 Humboldt Eureka 21 Comment
  UC229825  Thysanocarpus curvipes Joseph P. Tracy 1922-4-30 6032 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, , Willow Creek 152 Comment
  CAS-BOT-BC436936  Tiarella trifoliata var. unifoliata Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC64218  Tiarella trifoliata var. unifoliata J. O. Sawyer, M. A. Ericksen 1979-6-23 3383 Humboldt Slopes below Mill Creek Lakes 1585 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
  UCR3923  Tiarella trifoliata var. unifoliata David Whistler, H. M. Whistler 1964-7-29 640729- 5 Humboldt 0.2 mi north of Meyers Flats on U.S. 101 75 Comment
  HSC20439  Tolmiea diplomenziesii F. B. Plett 1963-5-15 47 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC71597  Torilis arvensis M. A. Baker 1980-6-26 2409 Humboldt Near Sims Creek 610 Comment
  UC727683  Torilis arvensis Milo S. Baker 1946-6-15 11484 Humboldt Trinity Hwy, Berry's Mt. Comment
  HSC72099  Torilis arvensis J. P. Smith, L. Barker, J. Cole 1976-7-27 8948 Humboldt Berry Summit on abandoned hwy. Comment
  SDSU2311  Torilis arvensis D. F. Howe 1961-7-31 3100 Humboldt 6 miles south of Garberville on #101. 91 Comment
  CHSC33049  Torilis arvensis subsp. arvensis Thomas Nelson; Jane Nelson 1978-7-2 4387 Humboldt Along highway 36 ca. 1 mile east of Grizzly Creek. Comment
  JEPS14254  Torilis arvensis subsp. arvensis Mrs. Archie Cathey 1938-7-30 Humboldt Miranda at Cathey Ranch 152 Comment
  UC1051572  Torilis arvensis subsp. arvensis Joseph P. Tracy 1948-8-1 18081 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1197062  Torilis nodosa Joseph P. Tracy 1930-8-3 9154 Humboldt McClellan Mountain 762 Comment
  CAS-BOT-BC169177  Toxicodendron diversilobum Joseph P. Tracy 1949-8-8 18404 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  POM117573  Toxicodendron diversilobum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  CAS-BOT-BC323056  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  RSA591513  Tracyina rostrata J. L. Strother 1996-5-30 1363 Humboldt NE of Alderpoint, easterly from Alderpoint-Blocksburg Road, 1km (0.6mi) on unpaved Stewart Ranch Road. 160 Comment
  HSC45274  Trientalis latifolia Brad Klipfel 1973-4-28 8 Humboldt Along Korbel to Maple Creek Rd., Canyon Creek Comment
  HSC45615  Trientalis latifolia Diane L. Reed 1978-5-7 49 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  HSC48609  Trientalis latifolia Mark Flippo 1978-4-8 3 Humboldt McKinleyville; Bella Vista Hill Comment
  UCD107571  Trifolium albopurpureum W. Williams 1951-1 s.n. Humboldt Keithly Ranch. Comment
  UC1197212  Trifolium albopurpureum var. dichotomum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3613 Humboldt near Hydesdale (and Alton); Northern Coast Ranges Comment
  UC160920  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1906-7-4 2535 Humboldt near Hydesville (Yager Creek); Northern Coast Ranges 60 Comment
  UC165525  Trifolium barbigerum Harley P. Chandler May, 1901 1129 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC1223515  Trifolium barbigerum Joseph P. Tracy 1948-5-31 17984 Humboldt 1/2 mi ne Garberville (bench) 304 Comment
  UC495641  Trifolium ciliolatum Joseph P. Tracy 1929-5-5 8567 Humboldt Phillipsville Northern Coast Ranges, South Fork Eel River 121 Comment
  SEINET12157175  Trifolium cyathiferum J. P. Tracy 1937-1 15519 Humboldt Devils Hole, head of Hors Linto Creek, Trinity Summit 1676 Comment
  POM313548  Trifolium dubium P. B. Kennedy 1929-6-12 10323 Humboldt Eureka. Comment
  SD87601  Trifolium dubium F. W. Peirson 1923-7-11 3622 Humboldt Coast, 20 miles north of Eureka Comment
  HSC14995  Trifolium dubium J. W. Johnson 1962-4-18 1246 Humboldt Arcata, Mad River County Park Comment
  UC1130015  Trifolium eriocephalum var. eriocephalum H. S. Yates 1936-6-17 5720 Humboldt Burr Valley South Fork Pk. quad 1036 Comment
Read comments
Feb 21 2013
  UC1602084  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-8 8728 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC100534  Trifolium fucatum Carl C. Marshall Mar 1886 18 Humboldt Hills. Comment
  HSC79552  Trifolium fucatum Kenneth Clark 1980-4-18 573 Humboldt 350 yards SE of Dead Man's Gulch (Point No Pass) 8 Comment
  UC418985  Trifolium fucatum H. E. and S. T. Parks May 1930 738 Humboldt vicinity Bridgeville Comment
  UCR95636  Trifolium hybridum R. F. Thorne, Percy C. Everett 1965-8-8 35268 Humboldt North Coast, N edge of Eureka, east of Hwy 101 5 Comment
  HSC99351  Trifolium longipes subsp. hansenii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 197 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 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
  UC162780  Trifolium longipes var. hansenii Joseph P. Tracy 1908-6 2919 Humboldt nw slopes Buck Mtn; Northern Coast Ranges 1219 Comment
  RSA322029  Trifolium microdon John M. Gillett, A. G. Moulds, George W. Gillett 12607 Humboldt Trinidad. Comment
  UC1197541  Trifolium microdon J. P. Tracy 1910-5-22 3139 Humboldt Eureka vicinity 0 Comment
  UC1223351  Trifolium microdon Joseph P. Tracy 1938-6-8 15867 Humboldt near Samoa; Humboldt Bay 6 Comment
  HSC45134  Trifolium oliganthum R. Sutherland 1978-5-21 2 .21578 Humboldt 433 Comment
  UC1197553  Trifolium variegatum var. melananthum Joseph P. Tracy 1930-5-18 8695 Humboldt Roseville golf course Northern Coast Ranges 152 Comment
  UC1223527  Trifolium variegatum var. melananthum Joseph P. Tracy 1937-6-13 15331 1/2 Humboldt opposite Willow Creek; Trinity River Valley Comment
  UC201371  Trifolium variegatum var. melananthum Joseph P. Tracy 1918-7-3 4990 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  UC160989  Trifolium variegatum var. variegatum Joseph P. Tracy 1911-7-7 3368 Humboldt 3 mi nw Junction os Wilow Creek with Trinity river (near Beebe's Ranch); Northern Coast Ranges Comment
  HSC32919  Trifolium willdenovii Thomas W. Nelson, James Nelson 1973-5-28 966 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC63279  Trifolium willdenovii M. A. Baker 1979-5-6 475 Humboldt Weitchpec. Comment
  HSC97537  Trifolium willdenovii Ivy Watson 2008-9-28 25 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  JEPS4131  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  HSC97616  Trifolium wormskioldii Cara Witte 2007-6-4 188 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  JEPS37725  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Northern Coast Ranges, Little River Beach Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  UC1223374  Trifolium wormskioldii Joseph P. Tracy 1950-6-29 18940 Humboldt 6 mi s Arcata (Fickle Hill) Comment
  RSA639405  Trifolium wormskioldii Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35196 Humboldt Big Lagoon; at edge of bog at south end of lagoon. 2 Comment
  HSC15683  Trillium albidum D. E. Anderson 1965-5-1 3567 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC96784  Trillium albidum M. Mesler 2006-5-24 601 Humboldt Coldsprings Camp, 7.4 mi. SE of Hwy. 299 on Titlow Hill Rd. 1402 Comment
  HSC99729  Trillium kurabayashii K. A. Wayman 2009-2-28 269 Humboldt Redwood National Park, near Orick, along Redwood Creek Trail, 1.4 mi. from trailhead, just before trail drops down to Redwood Creek Comment
  HSC15703  Trillium ovatum W. F. Nickel 1965-4-3 Humboldt 5 mi. SE of Fern Canyon in Prairie Creek Redwoods State Park, on rd. to Fern Canyon Comment
  UC1197827  Trillium ovatum Joseph P. Tracy 1912-3-3 3561 Humboldt at Eureka Eureka; Northern Coast Region 0 Comment
  SEINET10458960  Triodanis biflora Chandler CHANDLER 1514 B Humboldt SOMES BAR Comment
  SBBG68597  Triphysaria eriantha subsp. eriantha S. W. Hutchinson -Apr-1927 Humboldt Eureka 8 Comment
  CHSC31269  Triphysaria eriantha subsp. rosea Mark Stopher 1980-4-2 45 Humboldt In sand dunes on Samoa Oeninsula near Humboldt Bay. 4 Comment
  CHSC52957  Triphysaria eriantha subsp. rosea L. P. Janeway 1984-4-11 729 Humboldt On the North Spit of Humboldt Bay; northwest of the boat ramp and north of the Coast Guard Sta. 4 Comment
  UC1222456  Triphysaria pusilla Joseph P. Tracy 1927-5-8 7986 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  HSC41654  Triphysaria pusilla J. O. Sawyer 1977-4-23 3044 Humboldt Road separator between Hwy. 101 and parking area at scenic overlook N of McKinleyville Comment
  HSC70582  Triphysaria pusilla Sue Sweet 1981-4-30 548 Humboldt Lanphere-Christensen Dunes Preserve, along trail N of weather station Comment
  HSC78970  Triphysaria pusilla L. P. Janeway 1984-5-16 787 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. N of the boat ramp 3 Comment
  UC902248  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1944-5-14 17469 Humboldt Eureka 6 Comment
  JEPS13344  Triphysaria versicolor subsp. faucibarbata H. E. and S. T. Parks May, 1930 750 Humboldt near Bridgeville Comment
  UC1222439  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1942-5-29 17089 Humboldt Eureka 6 Comment
  UC33738  Trisetum canescens Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5369 Humboldt ridge near Harris Comment
  CAS-BOT-BC193517  Trisetum cernuum Joseph P. Tracy 1935-5-24 13814 Humboldt Eureka 60 Comment
  SEINET8719521 Image available Trisetum cernuum Unknown 1952-1 7551 Humboldt Spruce Grove, Trinidad. Comment
  CDA2569  Trisetum flavescens J. P. Tracy 1917-7-1 4830 Humboldt Eureka. 0 Comment
  UC187230  Trisetum flavescens J. P. Tracy 1911-7-12 3527 Humboldt Blue Lake 60 Comment
  UC15028  Triteleia bridgesii Mrs. M. H. Manning 1901-7-15 21 Humboldt near Hupa (trail below Mud Springs) Comment
  UC175817  Triteleia laxa Joseph P. Tracy 1912-6-30 3711 Humboldt Eureka Northern Coast Region 0 Comment
  UC666898  Triteleia laxa Joseph P. Tracy 1930-7-27 8897 Humboldt Bear River Ridge 609 Comment
  HSC79549  Triteleia laxa Kenneth Clark 1980-6-14 667 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  IRVC27661  Triteleia peduncularis J. P. Tracy 1898-7-5 266 Humboldt Immediate vicinity of Eureka; near Ryan's Slough Hill. 0 Comment
  HSC13439  Triticum aestivum L. M. Malloy 1965-5-20 30 Humboldt Old county dump, 5 mi. from Arcata on Fickle Hill Rd. Comment
  CAS-BOT-BC85896  Tsuga heterophylla G. A. Coleman 1901-7-23 s.n. Humboldt Near Acorn Comment
  UC1585364  Tsuga heterophylla R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 Humboldt e of Arcata (on Hwy 299, 28 km e of Hwy 101); Hwy 299 360 Comment
  HSC59566  Umbellularia californica Rick Lundquist 1979-4-22 26 Humboldt 8.4 mi. up Fickle Hill Rd. from 11th St. across from HSU observatory 610 Comment
  UC1239526  Uropappus lindleyi Joseph P. Tracy 1913-6-25 4339 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in the valley of the Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  HSC89472  Urtica dioica subsp. gracilis P. A. Daly 1986-3-12 95 Humboldt Trinidad Head, along trail 61 Comment
  UCD111533  Urtica dioica subsp. gracilis Linda M. Barker 1976-9-3 1696 Humboldt 3 miles west of Arcata. Comment
  SEINET202729  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-9-22 19369 Humboldt Klamath River, near Slate Creek. 8 miles below Orleans. 122 Comment
  CAS-BOT-BC193964  Vaccinium cespitosum Harley P. Chandler 1901-5-1 1181 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC199314  Vaccinium ovatum M. S. Jussel 1931-5-2 s.n. Humboldt 30 miles n. of Garberville Comment
  CAS-BOT-BC199319  Vaccinium ovatum L. B. Kildale 1930-9-9 10408 Humboldt Bald Mountain 914 Comment
  POM232033  Vaccinium ovatum I. L. Wiggins 1930-6-25 4613 Humboldt Sand dunes 2 miles north of Samoa. Comment
  RSA46803  Vaccinium ovatum Doris K. Kildale 1927-5-15 3189 Humboldt Big Lagoon Flat. Comment
  RSA46850  Vaccinium ovatum Doris K. Kildale 1927-5-7 3115 Humboldt Elk Ridge near Blacksburg. Comment
  SEINET3107074  Vaccinium ovatum Steve Selva, Roger Jensen 1974-8-28 96 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  CAS-BOT-BC199414  Vaccinium parvifolium Volney Rattan 1879-6-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC199422  Vaccinium parvifolium Elmer I. Applegate 1923-9-12 3993 Humboldt Above Trinidad Comment
  UC198659  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 Humboldt along Eel River from South Fork to Scotia (Scotia Bluff); Northern Coast Ranges, Eel River 60 Comment
  CAS-BOT-BC76056  Vancouveria hexandra Greg de Nevers 2001-4-17 12244 Humboldt Humboldt Redwoods State Park. 91 Comment
  HSC42007  Vancouveria hexandra Tom Duebendorfer 1977-5-15 45 Humboldt 1.6 mi. E of junction of Old State 299 and Maple Creek Rd. Comment
  HSC49387  Vancouveria hexandra R. York 1979-4-9 213 Humboldt Behind Humboldt State University Comment
  SJSU1032  Vancouveria hexandra A. C. Browne 1950-5-23 Humboldt Weott Comment
  CHSC63383  Vancouveria planipetala Vernon H. Oswald 1994-6-29 6363 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 3.5 mi NE of Titlow Hill Rd., 4.6 mi S of Brush Mtn. Lookout Rd., S of Hey. 299 and Willow Creek. 1237 Comment
  HSC33418  Vancouveria planipetala Thomas W. Nelson 1974-5-30 1344 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC3384  Vancouveria planipetala William J. Ferlatte, B. D. Rogers 1966-6-8 2089 Humboldt 2 mi. W of Forest Glen, Granite Canyon. Comment
  HSC99653  Vancouveria planipetala Jimerson, J. Pageau 1979-6-13 544 Humboldt Near Onion Lake, close to the town of Orleans 549 Comment
  SBBG46472  Vancouveria planipetala K. K. Muller 1954-6-21 635 Humboldt Olson Crk, 2 mi ENE of Mad River Comment
  UC535767  Vancouveria planipetala Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  SEINET10904790  Vancouveria planipetala Jones 1985-5-10 Jones 35 Humboldt T5n,r6e,sec.34, grays falls campground off of hwy 299. Ceanothus, arbutus, Quercus lobata habitat 241 Comment
  RSA152385  Velezia rigida Joseph P. Tracy 1947-7-5 17774 Humboldt Trinity Summit; Ridge top one mile W of Mud Springs. 1159 Comment
  HSC73644  Veratrum californicum var. californicum M. A. Baker 1980-7-22 3112 Humboldt Near Grogan Hole. 1676 Comment
  HSC70501  Veratrum insolitum Gail Newton 1980-7-20 1617 Humboldt Near Bell Swamps 1426 Comment
  UC1225853  Veratrum insolitum Joseph P. Tracy 1948-9-5 18180 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC98931  Veratrum viride Cara Witte 2007-7-19 549 Humboldt Forest Service Road 4N32. 1.5 miles east of intersection with 4N70. Grouse Mountain Lookout. 1547 Comment
  HSC59134  Veronica americana Terry Roth 1979-5-29 102 Humboldt Glendale exit off Hwy. 299, gravel road towards Mad River, near Mad River 30 Comment
  HSC90696  Veronica americana Gail Newton 1983-6-5 3557 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC24848  Veronica anagallis-aquatica D. E. Anderson, Thomas W. Nelson 1972-5-9 Humboldt Just W of Weitchpec on the road to Pecwan Comment
  HSC98613  Veronica arvensis Cara Witte 2007-6-21 331 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  RSA20805  Vicia americana var. americana Carl B. Wolf 1937-8-13 9270 Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  UC1222597  Vicia americana var. americana Joseph P. Tracy 1950-6-8 18733 Humboldt 7 mi s Ferndale (near Mountain Glen Ranch, Summit of Bear River Ridge); Bear River Ridge 609 Comment
  JEPS66180  Vicia gigantea W. L. Jepson 1902-8-4 13640 Humboldt near Petrolia; Humboldt Coast Comment
  HSC100543  Vicia gigantea Carl C. Marshall May 1885 43 Humboldt Thickets everywhere. Comment
  UC162859  Vicia hirsuta J. P. Tracy 1906-6-29 2513 Humboldt immediate vicinity Eureka 0 Comment
  HSC95677  Vicia sativa subsp. nigra Steven Lee 2004-4-11 15 Humboldt Scenic Dr., about 1 mi. N of Westhaven Exit off Hwy. 101, 1 from Houda Point. Comment
  UC1197472  Vicia sativa subsp. sativa J. P. Tracy 1909-7-22 3025 Humboldt immediate vicinity Eureka 0 Comment
  HSC25947  Vicia tetrasperma Thomas W. Nelson 1970-12-1 291 Humboldt River bar of the Eel River north of the Scotia Bluff Comment
  UC604647  Vinca major Joseph P. Tracy 1938-4-5 15703 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1761955  Viola adunca Mrs. Wilder 1926-4 Humboldt Carlotta Comment
  UC668253  Viola adunca Joseph P. Tracy 1938-6-13 15913 Humboldt Grouse Mountain at Cold Springs; Grouse Mountain 1432 Comment
  HSC33148  Viola cuneata Thomas W. Nelson, J. Cole, Brad Klipfel 1974-5-8 1244 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  HSC55596  Viola cuneata Overton, Butler 1979-7-23 9407 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC71038  Viola glabella Thomas W. Nelson 1977-4-20 3330 Humboldt Along USFS Road 1N15 at summit 915 Comment
  SEINET181214 Image available Viola glabella Bassett Maguire, R Maguire; CB Maguire 1934-6-8 15202 Humboldt Bolling Grove State Park ; unspecified Comment
  UC1198458  Viola glabella Joseph P. Tracy 1913-6-20 4222 Humboldt in valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC1761969  Viola glabella Joseph P. Tracy 1937-7-2 15408 Humboldt Trinity Summit, head of Hors-Linto Creek 1371 Comment
  RSA21092  Viola hallii Carl B. Wolf 1937-6-14 8820 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  JEPS80008  Viola lobata subsp. integrifolia Joseph P. Tracy 1937-7-2 15408 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  HSC71727  Viola ocellata M. A. Baker 1980-6-26 2456 Humboldt Near Sims Creek 610 Comment
  RSA183614  Viola ocellata D. E. Anderson 1965-5-1 3557 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek. Comment
  CAS-BOT-BC270200  Viola palustris Doris K. Kildale 1926-3-20 1536 Humboldt Big Lagoon Comment
  HSC34962  Viola praemorsa subsp. praemorsa Thomas W. Nelson 1975-5-24 1874 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CHSC13610  Viola sempervirens Mark Johnson 1974-4-28 29 Humboldt 1 mi w of Lady Bird Johnson Grove, 4 mi ne of Orick. 167 Comment
  JEPS40248  Vitis californica W. L. Jepson 1936-8-11 17870 Humboldt Philipsville South Fork Eel River Comment
  CHSC19731  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt Ca. 3 miles west of Willow Creek along Three Creeks Road. Comment
  HSC23096  Vulpia microstachys D. E. Anderson, J. P. Smith, J. O. Sawyer 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  CAS-BOT-BC184234  Vulpia microstachys var. pauciflora Joseph P. Tracy 1933-6-13 12599 Humboldt Hoopa Mountain. Near summit on road west from Hoopa to Bair's 1066 Comment
  HSC70921  Vulpia myuros R. York 1980-5-18 570 Humboldt Near Black Mountain 792 Comment
  HSC73581  Vulpia myuros Gail Newton 1980-7-14 1482 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC9928  Vulpia myuros H. E. Parks, S. T. Parks Jun 1937 5897 Humboldt Spruce Cove. Trinidad. 61 Comment
  CAS-BOT-BC128816  Whipplea modesta Doris K. Kildale 1928-5-19 5187 Humboldt Chalk Mountain Comment
  HSC104099  Whipplea modesta Monica Rodriguez, William A. Worley 2015-4-11 27 Humboldt Rock Creek Ranch property; along South Fork Rd, 8.2 mi. from 199 Redwood Hwy. 134 Comment
  HSC41845  Whipplea modesta N. G. Sugihara 1977-4-23 14 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  CAS-BOT-BC382929  Wyethia angustifolia Doris K. Kildale 1927-7-1 3614 Humboldt Alton Hill 30 Comment
  HSC102193  Wyethia angustifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1107 Humboldt Andy's Camp 1564 Comment
  HSC74374  Wyethia angustifolia M. A. Baker 1980-6-28 2493 Humboldt Near Mad River Buttes 1445 Comment
  JEPS32067  Wyethia angustifolia Joseph P. Tracy 1935-6-23 13938 Humboldt French Camp Ridge 1066 Comment
  UC1223305  Wyethia angustifolia Joseph P. Tracy 1950-6-8 18739 Humboldt s slope near Capetown; Bear River Ridge 30 Comment
  JEPS13755  Wyethia longicaulis Frank W. Gould 1939-5-29 841 Humboldt Horse Mountain 914 Comment
  RSA46831  Xanthium strumarium Doris K. Kildale 1926-8-8 2467 Humboldt River [Rav?] - Bull Creek. Comment
  CAS-BOT-BC527083  Xerophyllum tenax L. R. Abrams No date on lable. 7096 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  RSA256707  Xerophyllum tenax D. E. Anderson 1972-6-10 5728 Humboldt Along the Redwood Valley - Hoopa Road east of the summit Comment
  UC1197337  Yabea microcarpa Joseph P. Tracy 1946-6-15 17560 Humboldt lower foothills Horse Mountain 1066 Comment
  HSC34745  Zeltnera muehlenbergii Thomas W. Nelson 1974-7-19 1670 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC99016  Zigadenus micranthus Cara Witte 2007-5-21 66 Humboldt White Oak Opening. 1257 Comment
  HSC15746  Zigadenus micranthus D. E. Anderson 1965-6-1 3779 Humboldt Near Brush Mtn. lookout 1216 Comment
  UC1222523  Zigadenus venenosus var. venenosus Joseph P. Tracy 1950-6-25 18882 Humboldt nw slope Buck Mountain; , Burr Valley 1066 Comment



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