Search Results — 2000 specimen records retrieved (1408 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/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC73545  Abies concolor Gail Newton 1980-7-14 1470 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC78059  Abies grandis Doris K. Kildale 1927-5-13 3128 Humboldt Green Point, Redwood Creek road Comment
  RSA33416  Abies grandis Doris K. Kildale 1941-7-25 s.n. Humboldt Arcata Comment
  UC72493  Abies grandis H. P. Chandler 1905-5-3 Humboldt Eureka Comment
  HSC59741  Abronia latifolia Clark L. Miller 1979-5-9 6117 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  UC55499  Abronia latifolia J. P. Tracy 1901-8-7 1271 Humboldt Sand Hills of Ocean Beach Samoa, Opp Eureka Comment
  UCD109781  Abronia latifolia Linda M. Barker 1976-5-13 1490 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC100573  Abronia latifolia Carl C. Marshall May 1885 38 Humboldt Sea shore, Humboldt Bay. Comment
  RSA0025084  Abronia latifolia Robert F. Thorne 1957-9-3 19012 Humboldt Little River Beach, few miles S of Trinidad. Comment
  RSA0025088  Abronia latifolia M. B. Dunkle 1936-8-18 4817 Humboldt Moonstone Beach, N. Arcata. Comment
  RSA0025094  Abronia latifolia Robert F. Thorne, P. C. Everett 1965-8-5 35170 Humboldt Samoa Dunes. 3 Comment
  SEINET8215832  Abronia umbellata H. E. Parks 1941-1 242112 Humboldt Little River. Comment
  CDA40632  Acaena novae-zelandiae E. C. Whitney 1966-7-28 s.n. Humboldt Mather prop., Simpson Lumber Co., Fieldbrook. 0 Comment
  CAS-BOT-BC330564  Acer circinatum W. R. Dudley 1899-6-21 s.n. Humboldt Englewood Creek, Eel River Comment
  RSA46728  Acer glabrum var. torreyi Doris K. Kildale 1938-1 15372 Humboldt Hoopa trip. Comment
  CAS-BOT-BC331591  Acer macrophyllum Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  UC718416  Acer macrophyllum Wolf and Johnson 1934-10-11 6756 Humboldt Redwood Highway 6 4/10 mi w Humboldt Redwood Park (Eel River); w of Humboldt Redwood Park, Eel River 91 Comment
  RSA624389  Acer macrophyllum Louis C. Wheeler 1952-9-14 6930 Humboldt Steep east slope, associated with Umbellularia, Quercus garryana, Pseudotsuga taxifolia. Young tree ca. 8 meters tall. (#5) (Leaves from this tree for analysis). Comment
  SEINET10905085  Achillea Mary Susan Taylor 1990-8-22 Taylor 6073 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  SEINET10905087  Achillea Mary Susan Taylor 1982-10-24 Taylor 5173 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UCD128333  Achillea millefolium H. E. Parks; S. T. Parks 1943-8-1 24246 Humboldt Egg Point, Trinidad. 121 Comment
  CAS-BOT-BC400020  Achlys triphylla Doris K. Kildale 1928-5-19 5158 Humboldt Chalk Mountain Comment
  HSC100397  Achlys triphylla Carl C. Marshall Jun 1886 328 Humboldt Hills. Comment
  HSC3336  Achlys triphylla William J. Ferlatte 1968-5-5 1125 Humboldt Hairpin turn on old Hwy. 299 305 Comment
  RSA452604  Achlys triphylla Anstruther Davidson 1927-01 s.n. Humboldt [Unspecified] Comment
  JEPS47754  Achlys triphylla subsp. triphylla Lincoln Constance 1934-6-1 773 Humboldt Bull Cr. rd. between Dyerville Bridge and Bull Creek flat grove (mouth of Bull Cr.); S. Fork Eel R., Bull Creek Region 45 Comment
  CAS-BOT-BC210655  Achnatherum lemmonii Joseph P. Tracy 1930-7-10 8866 Humboldt Brannan Mountain 1219 Comment
  CAS-BOT-BC210656  Achnatherum lemmonii Joseph P. Tracy 1927-5-14 8000 Humboldt Trinity River Valley, near the South Fork 182 Comment
  UCD50670  Achnatherum lemmonii A. H. Murphy 1951-6-25 71 Humboldt 1 mile east of Snow Camp, ca. 8 miles e.n.e. of Kneeland. Humboldt County, California. Comment
  UCD50691  Achnatherum lemmonii A. H. Murphy 1951-6-25 74 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  CAS-BOT-BC216454  Achnatherum occidentale subsp. californicum H. E. Parks; Joseph P. Tracy 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  UC552774  Achnatherum occidentale subsp. californicum H. E. Parks and Joseph P. Tracy 1934-6-27 11078 Humboldt Grouse Mt. 1432 Comment
  SEINET11854795  Achyrachaena mollis J. P. Tracy 1948-1 18054 Humboldt near Harris Comment
  BLMAR508  Acmispon brachycarpus Jennifer Wheeler 2009-5-12 508 Humboldt Red Mountain, In serpentine meadow S of School Section Creek 792 Comment
  HSC32835  Acmispon denticulatus Thomas W. Nelson, James Nelson 1973-5-28 949 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC45024  Acmispon micranthus R. Sutherland 1978-4-23 18 .23478 Humboldt Near head of Kinsey (Fraser) Ridge 732 Comment
  HSC56019  Aconitum columbianum subsp. columbianum Gilbert Muth 1979-7-31 11519 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC56210  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-8-2 12215 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC55857  Actaea rubra G. L. Clifton, Griswold 1979-7-25 10846 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC56217  Actaea rubra G. L. Clifton, Griswold 1979-8-2 12233 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC391593  Actaea spicata var. arguta Doris K. Kildale 1926-8-15 2501 Humboldt Willow Creek Canyon 769 Comment
  HSC956  Adiantum aleuticum H. E. Parks, S. T. Parks May 1930 749 Humboldt Along Van Duzen River Comment
  HSC97598  Adiantum aleuticum Steven Lee 2004-4-6 9 Humboldt N side of Jolly Giant Cr. Rd., Redwood Community Forest Comment
  CAS-BOT-BC62294  Adiantum aleuticum Volney Rattan 1886-8-1 s.n. Humboldt Austin Creek, coast mts. north of San Francisco Bay Comment
  HSC953  Adiantum aleuticum Gene S. Van Horn 1962-5-20 24 Humboldt 0.5 mi. S of large quarry, 200 yards S of Jacoby Creek 46 Comment
  HSC97560  Adiantum aleuticum Cara Witte 2007-6-1 161 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1298 Comment
  UCD137191  Adiantum jordanii Lincoln Constance 1934-6-4 823 Humboldt Bull Creek Region, South Fork Eel River. Comment
  UC164824  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1911-7-4 3258 Humboldt at w side of, on hill slopes, near Willow Creek Trinity River; Northern Coast Ranges, Willow Creek 243 Comment
  HSC74276  Agoseris heterophylla M. A. Baker 1980-5-23 1390 Humboldt Near Buck Mtn. 1524 Comment
  POM161907  Agoseris heterophylla Joseph P. Tracy 1921-6-12 5816 Humboldt Kneeland Prairie 762 Comment
  UC1199482  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1921-4-24 5464 Humboldt grassy slopes and open oak groves facing S Fk of Eel River Phillipsville; Northern Coast Ranges, South Fork of the Eel River 121 Comment
  UC1198339  Agrostemma githago Joseph P. Tracy 1899-4-23 310 Humboldt Eureka; Northern Coast Region 0 Comment
  CDA1703  Agrostis capillaris T. C. Fuller 1962-8-6 9362 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  RSA183627  Agrostis densiflora D. E. Anderson 1965-9-5 4073 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  CAS-BOT-BC127295  Agrostis exarata 1933-7-20 12809 Humboldt Along Mad River, near Blue Lake. 15 Comment
  POM207131  Agrostis exarata W. C. Blasdale, Jos Burtt Davy 1899-6-13 5493 Humboldt Near Camp Grant Comment
  RSA12429  Agrostis exarata C. B. Wolf 1994-7-2 5865 Humboldt edge of small lake at Snow Camp. Mts. east of Korbel Comment
  UC1145059  Agrostis exarata Joseph P. Tracy 1936-8-7 15084 Humboldt head of, near Grizzly Camp Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC176586  Agrostis exarata J. P. Tracy 1900-9-2 933 Humboldt Immediate vicinity of Eureka 0 Comment
  UC207702  Agrostis exarata Joseph P. Tracy 1917-6-24 4825 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River 60 Comment
  UCSC000097  Agrostis hallii H. S. Yates 1936-6-16 5674 Humboldt 1 mile N.E. of Samoa Samoa - Eureka 3 Comment
  CAS-BOT-BC139358  Agrostis idahoensis Joseph P. Tracy 1935-7-27 14303 Humboldt Trinity Summit. At McKay Prairie. 1584 Comment
  RSA10019  Agrostis idahoensis Joseph P. Tracy 1932-7-16 10608 Humboldt Klamath Mtns., Trinity Summit, Corral Prairie 1524 Comment
  RSA10063  Agrostis pallens Joseph P. Tracy 1932-7-17 10661 Humboldt Trinity summit. Corral Prairie 1524 Comment
  HSC8802  Agrostis stolonifera John Warner Hosking 1966-8-6 Humboldt Aracata, HSU campus, near Wildlife Bldg. Comment
  UC187294  Agrostis stolonifera Joseph P. Tracy 1909-7-11 3012 Humboldt Eureka Northern Coast Region 0 Comment
  UC1103371  Agrostis viridis Joseph P. Tracy 1911-7-9 3460 Humboldt wet places along Willow Creek (creek is tributary of Trinity River); Northern Coast Ranges 243 Comment
  SEINET195007  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt Humboldt Camp 10 miles south of Dyerville Comment
  UC1103301  Aira caryophyllea Joseph P. Tracy 1914-5-14 4439 Humboldt Fort Seward Northern Coast Ranges Comment
  CAS-BOT-BC138332  Aira caryophyllea var. caryophyllea Doris K. Kildale 1927-6-25 3560 Humboldt Fearren's Ranch between Thorn and Shelter Cove. Comment
  UC13826  Allium acuminatum Harley P. Chandler June, 1901 1349 Humboldt Hupa Indian Reservation Morth Coast Ranges, Hupa Indian Reservation 152 Comment
  SEINET195362  Allium amplectens Unknown 1907-6-23 4832 Humboldt Near Yager. Comment
  JEPS15036  Allium bolanderi Harley P. Chandler June, 1901 1434 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  HSC65901  Allium bolanderi var. bolanderi M. A. Baker 1980-6-26 2444 Humboldt Near Sims Creek 610 Comment
  HSC73663  Allium campanulatum M. A. Baker 1980-7-15 2974 Humboldt Near Whiting Ridge. 1341 Comment
  UC666926  Allium campanulatum Joseph P. Tracy 1930-7-18 9072 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  RSA46682  Allium falcifolium Doris K. Kildale 1937-7-18 15132 Humboldt Horse Mt. Comment
  CAS-BOT-BC239  Allium grandisceptrum Mrs. W. W. Hutchinson 1924-6-1 s.n. (Herbarium A. Davidson no. 3595 ) Humboldt Garberville Comment
  JEPS81076  Allium hoffmanii Thomas W. Nelson and Jane P. Nelson 1980-6-27 5951 Humboldt saddle between two peak e Mount Lassic (non-numbered section e of Sec. 36); Six Rivers National Forest, Blocksburg Quad. 1767 Comment
  HSC58103  Allium validum G. L. Clifton, Griswold 1979-8-1 12034 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC100400  Allocarya californica Carl C. Marshall 463 Humboldt Road between Harris and Garberville. Comment
  CAS-BOT-BC453427  Allotropa virgata Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC73724  Alnus incana subsp. tenuifolia M. A. Baker 1980-7-19 3040 Humboldt Near Bret Hole. 1814 Comment
  HSC76041  Alnus incana subsp. tenuifolia Overton, Butler 1979-8-2 12572 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  CAS-BOT-BC170948  Alnus rhombifolia Joseph P. Tracy 1930-11-2 9243 Humboldt Camp Grant, along Eel River 60 Comment
  UC249711  Alnus rhombifolia Joseph P. Tracy 1922-1-15 5983 Humboldt 4 mi above Carlotta; Northern Coast Ranges, Van Duzen River 30 Comment
  UC1197956  Alnus rhombifolia Joseph P. Tracy 1926-1-10 7347 Humboldt Along Yager Creek, Carlotta Comment
  POM160842  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit. 1829 Comment
  UC54760  Alnus viridis subsp. sinuata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5778 Humboldt Trinity Summit North Coast Ranges (Mendocino, Humboldt, and Del Norte Counties) Comment
  HSC90773  Alopecurus geniculatus Gail Newton 1982-5-31 3565 Humboldt Elk River Wildlife Area, Eureka Comment
  RSA152374  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt Mouth of Elk River, near Eureka. 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
  UC132199  Amaranthus retroflexus Joseph P. Tracy 1907-8-20 2599 Humboldt near hydesville; Northern Coast Region 60 Comment
  JEPS40955  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13687 Humboldt along coast in front of s end of Stone Lagoon; Dry Lagoon 3 Comment
  OBI35980  Ambrosia chamissonis David J. Keil 1983-7-1 17289 Humboldt Ca 8 mi NW of Petrolia along Mattole Rd. rd immed adj to seashore Comment
  HSC5664  Ambrosia chamissonis H. E. Parks Sep 1941 24215 Humboldt Little River Comment
  UC582625  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt s end, along coast at Dry Lagoon Stone Lagoon 3 Comment
  HSC71166  Amelanchier alnifolia Thomas W. Nelson 1977-5-30 3412 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  CAS-BOT-BC142882  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1926-6-27 2225 Humboldt Little Van Duzen River on Weaverville-Bridgeville Road 640 Comment
  UCR45376  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson, Jane P. Nelson 1977-5-30 3419 Humboldt Beside State Route 36 just west of Dinsmore at Hwy bridge over Van Duzen River 732 Comment
  CHSC2118  Ammophila arenaria M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  SEINET7296676 Image available Ammophila arenaria Richard W. Pohl 1987-1 15639 Humboldt Eureka; Beach and salt marsh 2 Comment
  HSC100934  Amsinckia intermedia Miss Handy Jun 1886 342 Humboldt Maple Cr. & Salmon Cr. Comment
  HSC3518  Amsinckia intermedia Doris K. Kildale 1926-4-4 1727 Humboldt Above Big Lagoon Comment
  HSC89589  Anagallis arvensis M. Roantree 1985-5-24 54 Humboldt NW side of Trinidad Head, along trail Comment
  RSA416576  Anaphalis margaritacea Maude Minthorn s.n. Humboldt Ferndale Comment
  RSA416577  Anaphalis margaritacea B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  SD42332  Anaphalis margaritacea Carl B. Wolf 1937-8-13 2910 Humboldt North Coast Range, 9 miles northeast of Blue Lake on Lord Ellis Road. 245 Comment
  UC1222881  Anaphalis margaritacea Joseph P. Tracy 1950-9-10 19363 Humboldt 1 mi inland, on foothills of the Cape Ridge Cape Mendocino 60 Comment
  CAS-BOT-BC391781  Anemone deltoidea V. Rattan 1882-6-1 s.n. Humboldt To Kneeland Prairie Comment
  UC1196198  Anemone deltoidea Joseph P. Tracy 1947-7-5 17809 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC391787  Anemone deltoidea Joseph P. Tracy 1932-7-13 10489 Humboldt Klamath Mountains, Trinity Summit. Woods near Corral Prairie 1524 Comment
  UC503044  Anemone oregana Joseph P. Tracy 1927-6-12 8130 Humboldt Horse Mtn North Coast Ranges (in serpentine belt) 1524 Comment
  HSC64348  Anemone oregana var. oregana J. P. Smith, J. O. Sawyer 1973-5-12 6694 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC76205  Angelica arguta Overton, Butler 1979-8-2 12536 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  JEPS12247  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka 6 Comment
  HSC21447  Angelica hendersonii C. B. Wolf 1927-8-29 1216 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  HSC71412  Angelica hendersonii J. M. DiTomaso 1980-6-7 1567 Humboldt Elkshead, N of Trinidad. Comment
  UC582633  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  HSC5981  Anisocarpus madioides Frances Oldridge 1945-1 Humboldt Kneeland Comment
  UC169316  Anisocarpus madioides Joseph P. Tracy 1908-6 2878 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  HSC57992  Antennaria rosea subsp. rosea G. L. Clifton, Griswold 1979-7-31 11742 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC41274  Antennaria suffrutescens Brad Klipfel 1974-6-25 426 Humboldt Horse Mtn. Comment
  UC582631  Anthemis arvensis Joseph P. Tracy 1937-10-3 15691 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC10098  Anthoxanthum occidentale D. E. Anderson 1962-5-10 2205 Humboldt Lanphere Ranch Comment
  HSC39951  Anthoxanthum occidentale Linda M. Barker 1976-2-22 1312 Humboldt 3 mi. W of Arcata Comment
  SEINET271527  Anthoxanthum occidentale Bassett Maguire, Ruth Maguire; CB Maguire 1934-6-8 15071 Humboldt Bolling Grove State Park ; unspecified Comment
  CAS-BOT-BC137739  Anthoxanthum odoratum David D. Keck 1948-7-2 6010 Humboldt 1.5 mile esat of Freshwater (Garfield), on Kneeland Road. Comment
  CAS-BOT-BC137743  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad. Comment
  HSC38313  Anthoxanthum odoratum Peter Sorensen 1976-6-2 Humboldt North Spit Comment
  RSA183515  Anthoxanthum odoratum G. Bos 1965-5-2 234 Humboldt Korbel-Bald Mtn. road, 5 miles east of Korbel. 732 Comment
  SEINET14183378  Aphanes occidentalis Unknown 1918-5-1 4903 Humboldt Plants of Northern Coast Ranges of Califonia warm place by roadside towards McBrides KNEELAND PRAIRIE, HUMBOLDT COUNTY Altitude 2500 ft. Comment
  HSC57887  Apocynum androsaemifolium Overton, Butler 1979-7-31 11438 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  JEPS49816  Apocynum cannabinum Lincoln Constance 1934-6-11 848 Humboldt trail along e. bank of S. Fork of Eel N. Dyerville Flat; S. Fork Eel R., Bull Creek Region, N. Dyerville Flat Comment
  HSC3218  Apocynum cannabinum Lincoln Constance 1934-6-11 848 Humboldt Bull Creek region, trail along E bank of S Fork of Eel, N Dyerville Flat Comment
  HSC24743  Aquilegia formosa var. formosa Tim Baroni 1971-6-23 29 Humboldt 6 mi. S of Ferndale on the Mattole Rd. 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
  HSC57331  Arabis breweri var. breweri Overton, Marvin Butler 1979-7-25 9875 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC57633  Arabis breweri var. breweri G. L. Clifton, Griswold 1979-7-25 10787 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC73687  Arabis glabra M. A. Baker 1980-7-15 2980 Humboldt Near Whiting Ridge. 1341 Comment
  UC492237  Arabis glabra Joseph P. Tracy 1932-5-1 9860 Humboldt Redway Northern Coast Ranges 152 Comment
  HSC48750  Arabis holboellii var. retrofracta Brad Klipfel 1973-6-10 76 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57407  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-7-26 10162 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC44361  Aralia californica Brad Klipfel 1974-8-2 511 Humboldt Horse Mtn., draw above Horse Mtn. creek Comment
  UC420602  Aralia californica P. E. Goddard 1901-7-6 17 Humboldt Hupa Comment
  HSC40306  Arbutus menziesii Linda M. Barker 1976-4-30 1405 Humboldt 3 mi. W of Arcata Comment
  RSA29328  Arbutus menziesii E. K. Balls, P. C. Everett, B. K. Balls 1953-10-11 18628 Humboldt 3 mi. n. of Garberville, Hwy 101. 152 Comment
  UC1196879  Arbutus menziesii Frank A. Graham 1919-12-20 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC407747  Arceuthobium abietinum Doris K. Kildale 1926-9-5 2634 Humboldt Lasseck's Peaks, between Goat Camp and Signal Peak 1661 Comment
  RSA639544  Arceuthobium tsugense subsp. tsugense Louis C. Wheeler 1952-9-15 6933 Humboldt North Fork, Mad River. Comment
  UC1187351  Arctostaphylos R. G. Skolmen 1960-10-25 10 (1) Humboldt two and a half mi nnw Weitchepec; Quad 11 D-2 975 Comment
  UC1389155  Arctostaphylos A. E. Wieslander 1931-5-17 2567 Humboldt Orick-Orleans rd Hoopa Quadrangle, Bald Hills Comment
  UC314643  Arctostaphylos Joseph P. Tracy 1923-3-17 6156 Humboldt Garberville Northern Coast Ranges 121 Comment
  UCD50559  Arctostaphylos canescens Roman Gankin 1965-8-4 540 Humboldt On USAL Road, 23 miles north of junction with State Route 1 and 2.7 miles south of junction of Four Corners. Comment
Read comments
Jul 8 2015
  BLMAR112  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1995-1-19 112 Humboldt King range, growing in open meadow/clearing for new KR admin site 283 Comment
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Apr 5 2016
  BLMAR648  Arctostaphylos columbiana Jennifer Wheeler 2011-5-27 648 Humboldt Lacks Creek, Pine Ridge Road, spur at Stormy Saddle 1097 Comment
  JEPS24943  Arctostaphylos columbiana J. E. Adams 1935-5-12 1045 Humboldt Patrick's Point Comment
  UC549498  Arctostaphylos columbiana J. E. Adams 1935-5-12 1048 Humboldt Patrick's Point Comment
  UC718025  Arctostaphylos columbiana Carl B. Wolf 1934-6-30 5844 Humboldt 5 1/2 mi from Shelter Cove (on road to Briceland) 152 Comment
  UCD50769  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1178 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  HSC100252  Arctostaphylos densiflora J. P. Smith, & J. O. Sawyer 2010-5-2 12809 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  UCSB11320  Arctostaphylos glandulosa Zinke, P. 1950-10-9 Humboldt King Peak 1280 Comment
  JEPS38975  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13332 Humboldt ridge 5 mi s Harris (on road towards Bell Springs) 762 Comment
  HSC74675  Arctostaphylos manzanita Gail Newton 1981-5-16 2177 Humboldt Near Bug Creek. 1228 Comment
  CAS-BOT-BC24364  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-8-22 2575 Humboldt Bald Hills near Imbinson's. Comment
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Sep 27 2020
  RSA46696  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-6-25 3583 Humboldt Ettersburg Comment
  HSC40546  Arctostaphylos nevadensis Thomas W. Nelson, Jane P. Nelson 1976-5-23 2528 Humboldt Canyon of Bear Creek, W of Black Lassic 1555 Comment
  HSC68139  Arctostaphylos nevadensis J. P. Smith, J. O. Sawyer 1973-5-12 6689 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS38787  Arctostaphylos nevadensis W. L. Jepson 1902-7-16 2047 Humboldt Trinity Summit 2133 Comment
  JEPS38953  Arctostaphylos nevadensis Joseph P. Tracy 1927-5-15 8059 Humboldt on road w from Hoopa Valley Hoopa Mt. 914 Comment
  UC585957  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC40062  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC46628  Arctostaphylos patula L. B. Kildale 1930-8-3 10356 Humboldt Chaparral Mt. at Bug Creek. 914 Comment
  CAS-BOT-BC46631  Arctostaphylos patula Joseph P. Tracy 1935-7-14 14063 Humboldt Horse Mountain. 1432 Comment
  RSA134148  Arctostaphylos stanfordiana P. C. Everett, E. K. Balls 1959-10-24 23954 Humboldt 6.8 mi. SW from Siskiyou-Humboldt Co. Line, Somesbar to Orleans. 152 Comment
  HSC100470  Arctostaphylos tomentosa Carl C. Marshall Apr 1887 382 Humboldt Hoopa Valley. Comment
  CAS-BOT-BC43986  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17498 Humboldt Eureka 45 Comment
  HSC7728  Arctostaphylos uva-ursi Unknown 1960-4-30 Humboldt Samoa peninsula 6 mi. W of Arcata Comment
  RSA152315  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt Eureka. 46 Comment
  SD117461  Arctostaphylos uva-ursi Robert F. Thorne 1974-7-29 45082 Humboldt Samoa Dunes Comment
  UC1196878  Arctostaphylos uva-ursi J. P. Tracy 1909-10-7 3111 Humboldt Gans Prairie 457 Comment
  SEINET11993189  Arctostaphylos uva-ursi var. coactilis H. P. Chandler 1901-1 1133 Humboldt Humboldt Bay, North Coast Ranges 3 Comment
  HSC59030  Arctostaphylos viscida M. A. Baker 1979-6-7 795 Humboldt NE slope of Telescope Peak 1189 Comment
  HSC73157  Arctostaphylos viscida M. A. Baker 1980-5-18 1296 Humboldt Near Black Mtn. 1006 Comment
  HSC74372  Arctostaphylos viscida M. A. Baker 1980-6-16 1956 Humboldt Near Onion Mtn. 1280 Comment
  CDA36130  Arctotheca prostrata CDFA Staff 1990-8-22 Humboldt Ferndale; Sage Road & Highway 211. 0 Comment
  HSC16904  Armeria maritima subsp. californica R. J. Vernimen 1963-4-27 41 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  HSC37923  Armeria maritima subsp. californica Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  HSC99042  Arnica cernua Cara Witte 2008-6-4 681 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1276 Comment
  UC302176  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  RSA43686  Arnica discoidea H. M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  SEINET3098738  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie 1520 Comment
  UC129438  Arnica latifolia Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5754 Humboldt Trinity Summit Comment
  HSC67894  Artemisia douglasiana J. P. Smith 1973-5-26 6803 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1199394  Artemisia douglasiana Joseph P. Tracy 1933-8-6 12946 Humboldt French Camp Ridge 1066 Comment
  UC1222995  Artemisia dracunculus Joseph P. Tracy 1950-8-20 19325 Humboldt 8 mi below Orleans (at Big Bar); Klamath River near Snake Creek 121 Comment
  HSC4743  Artemisia pycnocephala Jerry Parker 1968-11-22 247 Humboldt Mckinleyville Beach, Foot of Murray Rd. Comment
  CAS-BOT-BC97244  Artemisia suksdorfii A. A. Heller 1924-7-25 13844 Humboldt near the beach at Agate Beach near Trinidad Comment
  HSC34272  Aruncus dioicus var. acuminatus K. Irwin 1975-8-13 Humboldt Grogans Hole Comment
  HSC55850  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-7-25 10811 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC400534  Asarum caudatum Doris K. Kildale 1928-5-19 5183 Humboldt Chalk Mountain Comment
  UC1198119  Asarum caudatum Joseph P. Tracy 1925-3-15 6942 Humboldt Blue Slide; on Van Duzen River 91 Comment
  POM279301  Asarum caudatum Lyman Benson 1928-7-12 s.n. Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  SEINET12097904  Asarum hartwegii H. P. Chandler 1901-1 1478 Humboldt Klamath River 396 Comment
  RSA273341  Asclepias cordifolia Thomas W. Nelson, James Nelson 1976-5-30 2613 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1222672  Asclepias cordifolia Joseph P. Tracy 1950-7-15 19043 Humboldt 1 mi n of mouth Willow Creek (e side of river); Trinity River Comment
  HSC40010  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC54555  Aspidotis densa Overton, Butler 1979-7-24 9561 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  UC1541684  Aspidotis densa H. E. Parks and J. P. Tracy 1930-9-15 763 Humboldt Kneeland; Bald Hills Comment
  RSA44512  Aspidotis densa Henry M. Pollard 1948-7-29 1 Humboldt Woodson Mine near Orleans Comment
  RSA246785  Aster chilensis R. F. Thorne, Percy C. Everett 1965-8-9 35336 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  RSA167201  Aster chilensis Joseph P. Tracy 1950-10-7 19383 Humboldt Berry's Mtn, E of Redwood Creek, on Trinity Hwy 549 Comment
Read comments
Aug 15 2009
  CAS-BOT-BC27580  Astragalus agnicidus Henry Tosten 1931-6-7 s.n. Humboldt near Bear Buttes, 4 mi. S of Miranda Comment
  CAS-BOT-BC193088  Astragalus pycnostachyus var. pycnostachyus W. S. Cooper 1925-7-29 s.n. Humboldt Samoa Comment
  UC33516  Astragalus rattanii var. rattanii Chesnut and Drew July 1888 Humboldt Mad River Comment
  HSC100358  Astragalus umbraticus J. McRae 1996-7-25 Humboldt Orleans Ranger District, off F.S. Rd. 11N16-C at mile post 1. 707 Comment
  JEPS79824  Astragalus umbraticus Joseph P. Tracy 1914-7 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  RSA167271  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt Bald Mountain; ''Lake Prairie''. 1066 Comment
  UC1198296  Athysanus pusillus Joseph P. Tracy 1937-5-16 15283 Humboldt nw of Harris 914 Comment
  CDA18213  Avena barbata G. D. Barbe, T. C. Fuller 1974-6-17 1841 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  HSC65451  Avena barbata J. P. Smith 1973-5-26 6807 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC181262  Avena barbata Joseph P. Tracy 1913-6-13 4114 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  HSC9012  Avena fatua R. Spellenberg 1965-6-14 1123 Humboldt Along Barry Rd., 1 mi. from junction with Bridgeville Rd., Kneeland Prairie Comment
  HSC9024  Avena fatua W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  HSC5123  Baccharis douglasii W. L. Jepson 1932-7-24 16391 Humboldt Tooey Ranch, Garberville Comment
  POM318604  Baccharis douglasii Patricia Wilder 1968-8-21 4410 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  UC604625  Baccharis glutinosa Joseph P. Tracy 1938-8-21 16128 Humboldt Mouth of Little River 9 Comment
  UC581762  Baccharis glutinosa Joseph P. Tracy 1933-8-27 13001 Humboldt between Garberville and Harris Garberville (Robertson Ranch) 762 Comment
  CAS-BOT-BC98028  Baccharis pilularis Elmer I. Applegate 1923-9-12 3990 Humboldt Stone Lagoon Comment
  CAS-BOT-BC98031  Baccharis pilularis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  OBI78649  Baccharis pilularis Bresa Martin 2013-11-11 1 Humboldt On a small paved path leading out of Humboldt State University behind the Cypress Apartments. Halfway between the light posts labeled "312" and "313". Growing just outside the chain link fence. 30 Comment
  UC1199293  Baccharis pilularis Joseph P. Tracy 1920-10-31 5408 Humboldt near Grizzly Bluff (Eel River); Eel River 30 Comment
  UC127578  Baccharis pilularis Mrs. M. H. Manning 1901-1-1 Humboldt Comment
  UC1222969  Balsamorhiza deltoidea Joseph P. Tracy 1950-6-15 18792 Humboldt 7 mi n, at Mail Ridge Harris Comment
  UC36796  Balsamorhiza deltoidea Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5369 Humboldt near Harris Comment
  SEINET11861883  Balsamorhiza deltoidea J. P. Tracy 1950-6-15 18792 Humboldt Mail Ridge, N of Harris 7 mi Comment
  CAS-BOT-BC16363  Barbarea orthoceras Doris K. Kildale 1927-7-22 3828 Humboldt Lassecks Peaks - Coral Goat Camp. 1661 Comment
  HSC48865  Barbarea orthoceras Brad Klipfel 1973-6-10 58 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC28223  Barbarea verna Thomas W. Nelson 1973-4-25 798 Humboldt Beside Hwy. 101 at the Bayside turnoff Comment
  OBI37802  Bellardia viscosa David J. Keil 1983-7-1 17282 Humboldt 1 mi NW of Petrolia Fire Station along Mattole Rd Comment
  JEPS84961  Bellis perennis Barbara Ertter with Thomas J. Delendick 1987-5-16 6917 Humboldt Hwy 299 roadside ca 8 mi e Arcata (9 1/2 mi w of Lord Ellis summit) 152 Comment
  HSC5187  Bellis perennis J. R. Kahl 1962-3-10 3 Humboldt 2 mi. S of Trinidad along old Hwy.101 Comment
  SEINET2153801  Bellis perennis K. T. Harper 2002-1 2002 -5 Humboldt Prarrie Creek State Park, near Orick, on Big Tree Trail. Comment
  HSC75816  Bensoniella oregona Bill Copeland 1980-7-2 315 Humboldt Near Snow Camp Mtn. 1311 Comment
  JEPS26215  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain in meadow near High Prairie; Northern Coast Ranges, Bald Mountain, nr High Prairie 1066 Comment
  UC1051580  Bensoniella oregona Joseph P. Tracy 1939-7-9 16327 Humboldt Snow Camp 1402 Comment
  HSC74672  Berberis aquifolium Gail Newton 1981-5-16 2172 Humboldt Near Bug Creek. 1228 Comment
  HSC99384  Berberis nervosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 33 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1174869  Berberis nervosa P. C. Everett and E. K. Balls 1959-10-25 23966 Humboldt 8.8 mi ne from Blue Lake (US Hwy 299, Arcata to Willow Creek) 274 Comment
  CAS-BOT-BC75686  Berberis nervosa Volney Rattan 1879-1-1 s.n. Humboldt Phelps. Comment
  SEINET11861631  Bidens frondosa J. P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Creek below Orleans 8 mi 122 Comment
  UC1222968  Bidens frondosa Joseph P. Tracy 1950-8-20 19318 Humboldt 2 mi sw of Orleans Comment
  CAS-BOT-BC66275  Blechnum spicant L. R. Abrams 1916-7-18 6103 Humboldt Arcata to Trinidad Comment
  SBBG25588  Blechnum spicant E. R. Blakley 1966-8-17 6792 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 64 Comment
  UC62521  Blechnum spicant Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  CDA42493  Blechnum spicant G. D. Barbe, T. C. Fuller 1974-6-18 1874 Humboldt Fern Canyon Road, 2.8 miles west of Highway 101, 5 miles south of Klamath River. 0 Comment
  UCD140029  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1998-6-25 851 Humboldt Route 101 milemarker 81.60. East side of highway. 2 Comment
  UCD140030  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1998-6-25 851 Humboldt Route 101 milemarker 81.60. East side of highway. 2 Comment
  HSC37915  Bolboschoenus robustus Peter Sorensen 1976-7-14 Humboldt Humboldt Bay, Woodley Island Comment
  UC1196126  Boschniakia strobilacea Joseph P. Tracy 1939-4-29 16251 Humboldt Klamath River near Slate Creek. Comment
  UC1478440  Botrychium multifidum Keith Curry 1974-1 Humboldt 5 mi s Trinidad (roadside rest Hwy. 101) Comment
  HSC56002  Boykinia major Overton, Butler 1979-7-31 11453 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC420261  Boykinia occidentalis Ira L. Wiggins 1930-7-22 4694 Humboldt along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  CAS-BOT-BC420273  Boykinia occidentalis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC420420  Boykinia occidentalis Mrs. M. H. Manning 1901-4 55 Humboldt near Hupa; near Hupa Comment
  CAS-BOT-BC420267  Boykinia occidentalis L. R. Abrams 1922-6-25 8265 Humboldt between Trinidad & Big Lagoon Comment
  UC1126837  Brassica rapa H. L. Person 1932-7-23 Humboldt Korbel Comment
  HSC89443  Brassica rapa P. A. Daly 1986-2-23 50 Humboldt Along trails at Trinidad Head 6 Comment
  RSA254779  Brickellia californica Thomas W. Nelson 1973-9-3 1124 Humboldt McKeown Ranch north of Dinsmore; along flood plain of Mad River Comment
  UC186059  Brickellia californica Joseph P. Tracy 1915-9-12 4674 Humboldt at the mouth of Laribee Creek (Eel River); Eel River 60 Comment
  RSA385270  Briza maxima Bonnie C. Templeton 1964-6-13 100901 Humboldt Samoa [sand dunes], west of Arcata. Comment
  UC1145096  Briza maxima Joseph P. Tracy 1938-7-15 16061 Humboldt Bucksport; (adjacent to Eureka) 9 Comment
  UC1145097  Briza maxima Joseph P. Tracy 1950-5-30 18711 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD57276  Briza maxima Joseph P. Tracy 1950-5-30 18711 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC78974  Briza minor L. P. Janeway, Paul Wilson 1984-5-25 827 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  RSA246907  Briza minor R. F. Thorne, P. Everett 1965-8-8 35245 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  SEINET4183111 Image available Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton 30 Comment
  UC1541547  Briza minor Harold E. Parks May, 1933 4302 Humboldt Spruce Cove Trinidad Comment
  UCSB15651  Brodiaea coronaria Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC56466  Brodiaea elegans subsp. elegans Griswold, Butler 1979-7-12 7273 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC22043  Brodiaea elegans subsp. elegans D. G. Hauger 1967-7-15 22 Humboldt Shower Pass Rd., Kelly's turn off 915 Comment
  HSC3019  Brodiaea elegans subsp. elegans David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  HSC3025  Brodiaea elegans subsp. elegans G. Ghatala 1967-7-27 19 Humboldt Kneeland Comment
  HSC32104  Brodiaea stellaris D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5697 Humboldt McKeown Ranch, N of Dinsmore Comment
  POM160287  Brodiaea stellaris Joseph P. Tracy 1925-5-30 7024 Humboldt Mcclellan Mountain. 823 Comment
  CAS-BOT-BC144346  Bromus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC149565  Bromus carinatus var. carinatus Harold E. Parks; Joseph P. Tracy 1935-6-8 11269 Humboldt Trinidad. 60 Comment
  CAS-BOT-BC149566  Bromus carinatus var. carinatus Joseph P. Tracy 1935-5-16 13806 Humboldt Eureka. 60 Comment
  HSC97612  Bromus carinatus var. carinatus Cara Witte 2007-6-4 198 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  SEINET201047 Image available Bromus carinatus var. carinatus Joseph P. Tracy 1926-5-2 7424 Humboldt Roadside weed,Trinity River Valley, near the South fork. 183 Comment
  UC1145157  Bromus carinatus var. carinatus Joseph P. Tracy 1949-7-19 18391 Humboldt Grouse Mountain 1524 Comment
  UC212859  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-31 5333 Humboldt Northern Coast Region, Carlotta, along Yager Creek Carlotta; Northern Coast Region, , Yager Creek 30 Comment
  UC185779  Bromus carinatus var. maritimus Joseph P. Tracy 1912-6-9 3658 Humboldt Alton; Northern Coast Ranges, Alton 30 Comment
  RSA10039  Bromus commutatus Joseph P. Tracy 1933-6-9 12534 Humboldt Shively. On Eel River. 30 Comment
  UC526931  Bromus commutatus Joseph P. Tracy 1933-6-9 12534 Humboldt North Coast Ranges, on Eel River, Shively Shively; North Coast Ranges, Eel River, Shively 30 Comment
  UCD58456  Bromus commutatus A. H. Murphy 1951-6-13 62 Humboldt 2 miles south of Blocksburg. Tooby and Prior Ranch. Comment
  HSC48064  Bromus diandrus Thomas W. Nelson 1978-4-23 3884 Humboldt N of Samoa Comment
  HSC65109  Bromus diandrus J. P. Smith, Steve Selva 1970-6-14 3829 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC9300  Bromus diandrus E. W. Styskel 1964-4-28 75 Humboldt End of Davis St. at the edge of Eel River in Rio Dell Comment
  JEPS72928  Bromus diandrus Lincoln Constance 1934-5-26 674 Humboldt Bull Creek Region, South Fork Eel River, s end of Dyerville Bridge Dyerville Bridge; Bull Creek Region, South Fork Eel River, Dyerville Bridge 45 Comment
  UC1103348  Bromus diandrus Joseph P. Tracy 1942-5-23 17087 Humboldt at Eureka Eureka 30 Comment
  CAS-BOT-BC155428  Bromus hordeaceus Doris K. Kildale 1929-5-26 9132 Humboldt Klamath River at Orleans. 152 Comment
  UC37638  Bromus laevipes Joseph Burtt Davy 1899-6-21 5724 Humboldt Hupa Valley, Supply Creek Supply Creek; Hupa Valley, Supply Creek Comment
  UC37642  Bromus laevipes Joseph Burtt Davy 1899-6-27 5871 Humboldt Hupa Valley Comment
  CAS-BOT-BC162213  Bromus orcuttianus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  SEINET200935 Image available Bromus orcuttianus var. orcuttianus Joseph P. Tracy 1949-7-19 18373 Humboldt On Friday Ridge, at Friday's Camp. 1219 Comment
  SBBG30039  Bromus rubens L. Larsen 1935-5-28 Humboldt Redway Comment
  CAS-BOT-BC161606  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt French Camp Ridge. 1066 Comment
  UC1103349  Bromus sterilis Joseph P. Tracy 1950-7-6 18985 Humboldt Buck Mountain, Burr Valley Burr Valley; Buck Mountain, Burr Valley 1066 Comment
  UC1198281  Cakile edentula Joseph P. Tracy 1948-6-10 18063 Humboldt sand beach w. of town Trinidad 3 Comment
  HSC46014  Cakile maritima Catherine Chin 1978-8-13 104 Humboldt Trinidad State Park, College Cove Beach Comment
  SEINET11993511  Cakile maritima F. H. Utech 1986-1 86 -403 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  RSA647567  Cakile maritima var. maritima William Gilbert 1970-6-3 s.n. Humboldt 101 Hwy, 10 miles S [of] Klamath River. Comment
  SBBG83771  Calamagrostis koelerioides J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  CAS-BOT-BC185184  Calamagrostis nutkaensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  JEPS71173  Calamagrostis nutkaensis W. L. Jepson 1936-8-18 17943 Humboldt Wildcat Ridge Comment
  HSC17634  Calandrinia ciliata P. N. Slattery 1963-3-31 35 Humboldt Clam Beach Comment
  HSC90224  Calandrinia ciliata L. Watson, J. Meninga Mar 1991 19 Humboldt Near Manila, Mad River Slough and Dunes, SW edge of parking lot Comment
  HSC76306  Calocedrus decurrens Teresa Prendusi 1981-7-9 224 Humboldt Near Cedar Camp 1256 Comment
  HSC95787  Calocedrus decurrens Will Ferrand 2001-6-17 28 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  OBI7411  Calocedrus decurrens H. E. McMinn July1922 278 Humboldt 1 mi E of Dinsmore Comment
  SEINET4152158  Calochortus amabilis Unknown 1914-5-14 4422 Humboldt Fort Seward 122 Comment
  JEPS17823  Calochortus tolmiei Joseph P. Tracy 1927-5-8 7960 Humboldt Philipsville Phillipsville 121 Comment
  UC176638  Calochortus vestae Joseph P. Tracy 1913-6-17 4147 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UC502923  Caltha biflora Joseph P. Tracy 1932-7-17 10671 Humboldt Ridges east of Corral Prairie, Trinity Summit; Klamath Mountains. 1828 Comment
  HSC102008  Caltha leptosepala M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 909 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  SEINET11861071  Calycadenia truncata subsp. microcephala J. P. Tracy 1941-9-1 17009 Humboldt along Trinity River near Don Juan Point 335 Comment
  RSA170258  Calycadenia truncata subsp. scabrella Joseph P. Tracy 1916-9-5 4755 Humboldt Grasshopper Ridge, head of Canoe Creek 610 Comment
  CAS-BOT-BC275365  Calycadenia truncata var. truncata Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat 152 Comment
  HSC39966  Calypso bulbosa Linda M. Barker 1976-3-22 1347 Humboldt 3 mi. W of Arcata Comment
  UCSB29353  Calypso bulbosa var. occidentalis Phelps, M. 1972-3-19 Humboldt 1.5 mi. from Garberville; along Old Briceland Rd; 0.5 mi. north of roadside 213 Comment
  RSA119358  Calystegia occidentalis subsp. occidentalis S. S. Tillett 1956-7-6 625 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  HSC48792  Calystegia occidentalis subsp. occidentalis Brad Klipfel 1975-6-17 660 Humboldt 2 mi. E of Titlow Hill Rd. along Hwy. 299 Comment
  HSC37769  Calystegia silvatica subsp. disjuncta Thomas W. Nelson 1976-8-10 3166 Humboldt Intersection of 11th and B St. in Arcata Comment
  HSC59205  Calystegia soldanella Terry Roth 1979-5-24 81 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  RSA337437  Calystegia soldanella R. F. Thorne, P. C. Everett, K. Thorne 1965-8-9 35307 Humboldt Big Lagoon. 3 Comment
  HSC45380  Camissonia cheiranthifolia R. York, Linda York 1978-4-1 99 Humboldt End of lighthouse Rd., 2 mi. SE of Petrolia. Comment
  UC1196940  Camissonia contorta Joseph P. Tracy 1906-5-13 2453 Humboldt Fairhaven Northern Coast Region, Humboldt Bay Comment
  CHSC68787  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Vernon Oswald 1997-6-5 8532 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.0 mi south of Hwy. 255. 6 Comment
  RSA696536  Campanula prenanthoides J. R. Bruff 1937-8-17 941 Humboldt Richardson Grove. Comment
  UC168956  Campanula prenanthoides Joseph P. Tracy 1911-7-4 3286 Humboldt near Willow Creek (hill slopes at w side of river); Northern Coast Ranges, Trinity River 243 Comment
  SEINET10463306  Campanula prenanthoides Pollard 1948-7-23 POLLARD s.n. Humboldt REECE POINT NEAR ORLEANS Comment
  SEINET10972390  Campanula prenanthoides Tracy 1908-6-27 TRACY 2859 Humboldt Valley of Van Duzen River; opposite Buck Mountain, in woods. 762 Comment
  UC168961  Campanula prenanthoides Joseph P. Tracy 1909-8-1 3061 Humboldt in woods Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET10463446  Campanula scouleri Howard S. Irwin 1975-8-16 Irwin s.n. Humboldt GROGANS HOLE AREA. T8N R6E SEC. 16 Comment
  SEINET10463744  Campanula scouleri Marshall 1886-1 MARSHALL s.n. Humboldt Comment
  SEINET10463754  Campanula scouleri Baker 1979-6-29 Baker 956 Humboldt Hopkin's Creek. T9N R5E Sec.3 760 Comment
  SEINET201622  Campanula scouleri Joseph P. Tracy 1937-7-25 15560 Humboldt Happy Camp Mountain In Trinity Summit Range NE of Hawkins Bar. 1280 Comment
  UC203897  Cardamine breweri Joseph P. Tracy 1918-4-28 4891 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  LA204275  Cardamine californica Victor Duran; 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville Comment
  UCD114499  Cardamine californica Parks; Tracy 1931-3-26 0916 Humboldt lower Van Duzen River. 60 Comment
  UC668053  Cardamine californica var. californica Joseph P. Tracy 1938-4-5 15704 Humboldt Willow Creek Canyon Willow Creek Canyon (along Trinity Highway) 487 Comment
  UC668051  Cardamine californica var. sinuata Joseph P. Tracy 1938-5-8 15739 Humboldt Blue Slide on Van Duzen River; on Van Duzen River, Blue Slide 91 Comment
  HSC60299  Cardamine nuttallii Phyllis Krieg 1979-5-8 Humboldt 0.25 mi. E of Old Arcata Rd. on Golf Course Rd., Bayside, next to a house 15 Comment
  HSC6853  Cardaria draba J. P. Tracy 1933-5-19 12201 Humboldt Eel River, Alton to Fortuna 15 Comment
  CAS-BOT-BC384762  Cardionema ramosissimum L. R. Abrams 1916-7-18 6124 Humboldt Arcata to Trinidad Comment
  CHSC55892  Cardionema ramosissimum L. P. Janeway 1987-7-31 2546 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  SD117463  Cardionema ramosissimum Robert F. Thorne 1974-7-29 45077 Humboldt Samoa dunes. Comment
  UCD150620  Cardionema ramosissimum Linda M. Barker 1976-4-13 1386 Humboldt 3 miles west of Arcata. Comment
  RSA167248  Carduus tenuiflorus Joseph P. Tracy 1947-6-8 17703 Humboldt 0.5 mile west of town Comment
  CHSC107135  Carex abrupta R. E. Brainerd 2009-7-23 1568 Humboldt North Coast Range, South Fork Mountain; 19.6 miles west-northwest of Hayfork. UTM Zone 10 453477E 4494945N. 1661 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
  CAS-BOT-BC17792  Carex amplifolia Doris Kildale 1931-6-6 10865 Humboldt Gans Prairie, Orick - Weitchpec road. Comment
  UC1115811  Carex aquatilis var. dives Joseph P. Tracy 1938-7-6 16024 Humboldt Big Lagoon 6 Comment
  RSA18607  Carex aquatilis var. dives Carl B. Wolf 1937-9-11 9323 Humboldt Redwood Highway, 3 miles N of Orick at Davison s Ranch on Prairie Creek. 61 Comment
  RSA286355  Carex aquatilis var. dives Robert F. Thorne 1974-7-29 45076 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  JEPS79833  Carex athrostachya Joseph P. Tracy 1935-7-23 14140 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC19435  Carex bolanderi Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  SEINET3899382  Carex buxbaumii Thomas Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt Along road 2S08 near Pine Mountain.; 0 1463 Comment
  UC303016  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
  CHSC98363  Carex densa Thomas W. Nelson; Jane P. Nelson 1982-7-10 7086 Humboldt North Coast Ranges. Along Mad River at Anderson's Ford. 609 Comment
  SEINET10650834  Carex hendersonii Joseph W. Congdon 1904-7-24 Congdon s.n. Humboldt Mariposa. Arcata. Comment
  HSC44527  Carex hoodii Brad Klipfel 1973-7-1 135 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS79847  Carex jonesii Joseph P. Tracy 1932-7-15 10573 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC35567  Carex jonesii Joseph Prince Tracy 1932-7-15 10573 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  UC249733  Carex lenticularis var. limnophila Joseph P. Tracy 1923-6-17 6275 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  HSC7139  Carex leptalea B. D. Rogers 1965-10-2 1021 Humboldt Big Lagoon 0 Comment
  CAS-BOT-BC31587  Carex luzulina var. luzulina Joseph Prince Tracy 1932-7-14 10560 Humboldt Trinity Summit, Corral Prairie. 1584 Comment
  SEINET4292167 Image available Carex microptera Unknown 2003-1 7920 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5km northeast of the top of Grouse Mountain. Comment
  CAS-BOT-BC32134  Carex multicaulis Joseph Prince Tracy 1941-4-11 16857 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  UC1152054  Carex multicaulis Joseph P. Tracy 1949-8-11 18465 Humboldt e of headwaters Redwood Creek (beginning where the electric power line crosses, going southward); Kinsey Ridge 1280 Comment
  CAS-BOT-BC119718  Carex nervina Joseph Prince Tracy 1932-7-16 10627 Humboldt Trinity Summit, Fir woods near Corral Prairie. 1584 Comment
  HSC103353  Carex nervina Thomas W. Nelson, Jane Nelson 1987-6-11 8604 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  UC562318  Carex nudata Joseph P. Tracy 1927-5-30 8082 Humboldt near Garberville (Redwood Creek) 121 Comment
  HSC76818  Carex obnupta L. P. Janeway 1982-6-12 3 Humboldt Dry Lagoon 3 Comment
  POM118373  Carex obnupta Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  BLMAR237  Carex obnupta Jennifer Anthony-Wheeler 1996-9-26 237 Humboldt King range, growing in wet places in creeksides habitat between Nadelos and Wailaki 548 Comment
  SEINET7569469 Image available Carex obnupta David Castaner 1989-6-19 10249 Humboldt Fern Canyon. Comment
  UC562550  Carex ovalis Joseph P. Tracy 1934-7-18 13413 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  HSC102163  Carex pachystachya M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1073 Humboldt Patterson Meadows 1555 Comment
  UC201994  Carex pachystachya Joseph P. Tracy 1918-7-5 5017 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  CAS-BOT-BC119162  Carex pansa Robert F. Thorne; P. Everett 1965-8-5 35165 Humboldt Samoa Dunes. 3 Comment
  CHSC42978  Carex pansa L. P. Janeway 1987-7-31 2537 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  UC70628  Carex pansa Joseph Burtt Davy and Walter C. Blasdale 1899-5 6218 Humboldt Eureka Comment
  CAS-BOT-BC119169  Carex pansa Joseph Prince Tracy 1911-6-25 3258 Humboldt Eureka, bayshore. Comment
  CAS-BOT-BC118823  Carex preslii Joseph Prince Tracy 1932-6-19 10242 Humboldt Dinsmore's Ranch: on Van Duzen River opposite Buck Mountain. 762 Comment
  UC249559  Carex saliniformis Joseph P. Tracy 1921-8-7 5863 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  HSC82401  Carex scopulorum var. bracteosa Thomas W. Nelson 1979-7-11 5013 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC562247  Carex scopulorum var. bracteosa Joseph P. Tracy 1932-7-17 10675 Humboldt meadow heading into Devil's Hole; Trinity Summit 1828 Comment
  RSA783710  Carex subbracteata P. F. Zika 2009-6-16 24500 Humboldt Outer North Coast Range: Above Route 299, 0.7 road mi W of Berry Summit. 780 Comment
  CAS-BOT-BC116672  Carex subfusca Alice Eastwood; John Thomas Howell 1937-6-23 4792 Humboldt Near Dinsmore's. Comment
  UC562638  Carex subfusca Joseph P. Tracy 1936-6-17 14954 Humboldt lower foothills of nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  CAS-BOT-BC115570  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-23 4848 Humboldt Kneeland Comment
  UC585640  Carex tumulicola Joseph P. Tracy 1937-6-20 15338 Humboldt 10 mi up stream from mouth Bear River 152 Comment
  RSA91642  Carex tumulicola Alice Eastwood, John Thomas Howell 1937-6-23 4758 Humboldt Dinsmore s. Comment
  CHSC90267  Carex utriculata Thomas W. Nelson; Jane P. Nelson 1987-6-11 8600 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  UC562326  Carex vesicaria var. major Joseph P. Tracy 1927-7-17 8277 Humboldt lower w foothills Chaparral Mountain (Three Cabins); North Coast Ranges 457 Comment
  SBBG57215  Carex viridula H. E. Parks -Sep-1935 5214 Humboldt center of Dry Lagoon, S of Orick Comment
  CHSC97051  Carex viridula subsp. viridula Gordon Leppig 1997-8-3 639 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common on northern edge. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  UC1103605  Carex viridula var. viridula Joseph P. Tracy 1934-10-21 13693 Humboldt in front of South End Stone Lagoon (Dry Lagoon) 3 Comment
  HSC26372  Carpobrotus chilensis T. O. Osborne 1970-9-16 37 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC79475  Castilleja affinis subsp. litoralis Kenneth Clark 1980-4-18 588 Humboldt Dead Man's Gulch 12 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
  UC582582  Castilleja affinis subsp. litoralis H. E. Parks and Joseph P. Tracy 1923-5-19 6208 Humboldt vicinity Trinidad 60 Comment
  SBBG7047  Castilleja ambigua subsp. ambigua H. and M. Dearing 1939-5-25 3430 Humboldt beach N of Loleta Comment
  HSC90966  Castilleja ambigua subsp. humboldtiensis Gail Newton 1982-6-5 3575 Humboldt Elk River Wildlife Area, Eureka. Comment
  JEPS3617  Castilleja applegatei subsp. martinii Clyde Ritchie Bell 1951-4-21 Humboldt about 4 mi n Orleans (along Calif Hwy 96 (Klamath River road)) Comment
  HSC45387  Castilleja densiflora R. York 1978-5-20 169 Humboldt Along Bluff Creek Trail 610 Comment
  JEPS108698  Castilleja exserta C. Sander 2005-8-16 CA 330 81 Humboldt Manila Dunes 3 Comment
  HSC44427  Castilleja pruinosa Brad Klipfel 1975-5-30 645 Humboldt Horse Mtn. Comment
  JEPS26532  Castilleja pruinosa Joseph P. Tracy Jun 1901 1485 Humboldt Klamath River; North Coast Ranges 426 Comment
  UC902243  Castilleja pruinosa Joseph P. Tracy 1947-7-9 17847 Humboldt Horse Mountain 1432 Comment
  JEPS82239  Ceanothus Roger Raiche 1983-7-18 30529 Humboldt 0.6 mi n intersection of Shelter Cove Rd (King Peak Rd); King Range Comment
  HSC100905  Ceanothus Carl C. Marshall Jun 1887 462 Humboldt East branch. Comment
  CAS-BOT-BC49319  Ceanothus cuneatus Joseph P. Tracy 1938-6-13 15905 Humboldt Horse Mountain 1432 Comment
  HSC74353  Ceanothus cuneatus Gail Newton 1980-6-17 208 Humboldt Near Onion Mtn. 1341 Comment
  SEINET7720971  Ceanothus cuneatus Chesnut, Drew 1888-8-1 Humboldt Grouse Creek Comment
  JEPS82330  Ceanothus foliosus Roger Raiche 1983-7-18 30531 A Humboldt Horse Mt. King Range Comment
  UC728641  Ceanothus foliosus Milo S. Baker 1931-5-17 5192 Humboldt e Occidental (27.5 mi south of Garberville on hwy.) Comment
  JEPS82329  Ceanothus foliosus var. foliosus Roger Raiche 1983-7-18 30531 Humboldt King Peak Road, 2.4 mi N of road to Shelter Cove King Range 518 Comment
  JEPS82328  Ceanothus gloriosus var. exaltatus Roger Raiche 1983-7-18 30530 Humboldt 2.4 mi n rd to Shelter Cove (along King Peak Rd); King Range Comment
  CAS-BOT-BC50053  Ceanothus incanus Joseph P. Tracy 1935-5-25 13824 Humboldt Larrabee Creek, near Bosworth's 304 Comment
  UC198614  Ceanothus incanus Joseph P. Tracy 1916-6-21 4706 Humboldt Burr Creek Northern Coast Ranges 914 Comment
  UCD112168  Ceanothus incanus B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest of Garberville. Comment
  UC166023  Ceanothus integerrimus Joseph P. Tracy 1911-7-7 3427 Humboldt ridge to n Willow Creek (between Willow and Campbell Creek, near summit.); Brannan Mtn., Northern Coast Ranges 1219 Comment
  UC1193285  Ceanothus oliganthus var. sorediatus P. Zinke 1950-8-26 157 Humboldt Salmon Creek 3 mi w Miranda; Quad. 29C1, Salmon Creek 91 Comment
  UC176049  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1913-6-27 4354 Humboldt Near Bridgeville McClellan Mountain, Northern Coast Ranges 457 Comment
  HSC36678  Ceanothus parryi R. Sutherland 1975-5-5 19 .5575 Humboldt Bank of Mattole River at Ettersburg Bridge 191 Comment
  HSC36680  Ceanothus parryi R. Sutherland 1975-5-2 7 .2575 Humboldt Near old Hwy. 101 116 Comment
  HSC43181  Ceanothus parryi R. Sutherland 1975-7-3 2 .3775 Humboldt Along Ettersburg Rd. 488 Comment
  JEPS42236  Ceanothus parryi W. L. Jepson 1932-7-24 16388 Humboldt Mail Ridge Comment
  JEPS42237  Ceanothus parryi W. L. Jepson 1932-8-6 16491 Humboldt Weott 91 Comment
  UC18401  Ceanothus parryi Bolander Jun 1867 6572 bis Humboldt Comment
  UC18403  Ceanothus parryi Bolander Jun 1867 6572 Humboldt Comment
  CAS-BOT-BC53059  Ceanothus pumilus Doris Kildale Gillespie 1931-6-7 10603 Humboldt South Fork Mt. - Blake Lookout 1726 Comment
  HSC43229  Ceanothus pumilus R. Sutherland 1976-4-17 5 .17476 Humboldt 549 Comment
  UC1198017  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17527 Humboldt Willow Creek Canyon, along Trinity Highway 609 Comment
  RSA172183  Ceanothus thyrsiflorus Robert F. Thorne 1957-9-2 19005 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC176985  Ceanothus thyrsiflorus Joseph P. Tracy 1912-7-23 3800 Humboldt 5 mi above the mouth South Fork Eel River; Northern Coast Ranges, along South Fork Eel River 30 Comment
  CAS-BOT-BC52861  Ceanothus velutinus Doris K. Kildale 1926-4-25 1812 Humboldt Hoopa Mountain 304 Comment
  CAS-BOT-BC52862  Ceanothus velutinus Doris K. Kildale 1925-8-18 1226 Humboldt Trinity Summit 1828 Comment
  HSC41282  Ceanothus velutinus Brad Klipfel 1974-7-23 472 Humboldt Horse Mtn. Comment
  UC702533  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road, 5 mi n and 2 mi e Boynton Prairie; n and e of Boynton Prairie 630 Comment
  CDA35679  Ceanothus velutinus Gordon Leppig 1998-6-1 876 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  UCD129971  Centaurea benedicta P. B. Kennedy 1929-6-13 s.n. Humboldt Etter's Ranch, Ettersburg. Comment
  CDA7086  Centaurea calcitrapa T. C. Fuller 1960-8-25 4975 Humboldt Pacific Lumber Company, Perrott Creek, across Eel River from Dyerville. 0 Comment
  UC204750  Centaurea cyanus Joseph P. Tracy 1918-7-1 4963 Humboldt along river from South Fork to Scotia, Holmes Flat Eel River; North Coast Ranges, , Holmes Flat 60 Comment
  HSC37691  Centaurea solstitialis R. Sutherland 1976-8-18 5 .18876 Humboldt In the town of Briceland 192 Comment
  UC582863  Centaurium muehlenbergii P. A. Munz 1936-8-9 14329 Humboldt 5 mi n Humboldt-Mendocino County line (on Redwood Highway) Comment
  RSA34292  Centaurium muehlenbergii Doris K. Kildale 1927-7-11 3717 Humboldt Blue Slide on Van Duzen River Comment
  UC154023  Centunculus minimus J. P. Tracy 1903-8-9 1943 Humboldt immediate vicinity of Eureka 0 Comment
  HSC99499  Cephalanthera austiniae K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 159 Humboldt Near North Trinity Mtn, along Forest Service Rd 10NO2, between two forks of Domingo Creek 1433 Comment
  RSA20843  Cerastium arvense C. B. Wolf 1937-6-18 8883 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  UC8232  Cerastium arvense H. N. Bolander 1867-1 6520 Humboldt E. Fork Eel R. Comment
  RSA18059  Cerastium glomeratum C. B. Wolf 1927-8-22 797 Humboldt Big Lagoon. Comment
  UC1198320  Cerastium glomeratum Joseph P. Tracy 1911-7-5 3308 Humboldt near mouth Willow Creek; Northern Coast Ranges, Willow Creek (tributary of Trinity R. 182 Comment
  UC62197  Ceratophyllum demersum W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  SEINET5334897  Chamaecyparis lawsoniana W. D. Billings 1940-6-25 1350 Humboldt Cedar Creek, 35 miles east of Arcata Comment
  UC275331  Chamaesyce serpyllifolia Joseph P. Tracy 1923-9-16 6556 Humboldt Trinity River Valley, near the South Fork Northern Coast Ranges 182 Comment
  HSC44520  Chamerion angustifolium subsp. circumvagum Brad Klipfel 1973-7-1 127 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55122  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-1 11922 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  UC1197014  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1946-7-28 17625 Humboldt head of Willow Creek Willow Creek Canyon (along Trinity Hwy) 762 Comment
  CAS-BOT-BC68265  Cheilanthes gracillima Marshall Avery Howe 1896-6-6 s.n. Humboldt Kneeland Prairie Comment
  POM182347  Cheilanthes gracillima Joseph P. Tracy 1912-7-26 3841 Humboldt Kneeland Prairie 762 Comment
  HSC995  Cheilanthes gracillima J. Wendell Howe 1934-7-21 1314 Humboldt Near Cold Spring, Horse Mtn. Comment
  UC205454  Chenopodium pumilio Joseph P. Tracy 1919-9-13 5200 Humboldt Willow Creek Northern Coast Ranges (near mouth, tributary of Eel River) 152 Comment
  CAS-BOT-BC451380  Chimaphila menziesii L. B. Kildale 1930-8-10 10530 Humboldt Snow Camp, head of Redwood Creek Comment
  UC176054  Chimaphila umbellata Joseph P. Tracy 1913-7-20 4368 Humboldt near Three Creeks on Willow Creek Rd.; N. Coast Ranges 1066 Comment
  UC314637  Chimaphila umbellata Joseph P. Tracy 1926-8-29 7777 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  CAS-BOT-BC236918  Chloropyron maritimum subsp. palustre Joseph P. Tracy 1938-7-15 16064 Humboldt At Fields Landing, around Humboldt Bay 3 Comment
  HSC8064  Chrysolepis sempervirens J. P. Tracy, H. E. Parks 1941-8-28 11541 Humboldt South Fork; Blake Lookout Area 1768 Comment
  UC1197340  Cicuta douglasii Joseph P. Tracy 1937-8-12 15662 Humboldt Snow Camp 1402 Comment
  UC180176  Cicuta douglasii Joseph P. Tracy 1914-9-6 4612 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  UC1198515  Circaea alpina subsp. pacifica Joseph P. Tracy 1935-7-23 14159 Humboldt lower end Brett Hole (Trinity Summit); Trinity Summit 1584 Comment
  UC1714534  Circaea alpina subsp. pacifica Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  SEINET201069  Cirsium arvense Joseph P. Tracy 1933-8-13 12963 Humboldt Arcata Bottom 15 Comment
  UCSB15303  Cirsium arvense Breedlove, Dennis 1961-7-4 Humboldt Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  RSA0070877  Cirsium remotifolium Joseph P. Tracy 1949-8-11 18472 Humboldt East of headwaters of Redwood Creek, beginning where the electric power line crosses, and working south. Kinsey Ridge, south from Grouse Mt., 2 to 6 miles. 1280 Comment
  UC179915  Cirsium vulgare Joseph P. Tracy 1914-9-13 4629 Humboldt Eureka 0 Comment
  HSC89489  Cirsium vulgare P. A. Daly 1986-2-28 65 Humboldt Trinidad Head, along trail 61 Comment
  CAS-BOT-BC228801  Cistanthe umbellata Doris K. Kildale 1925-8-17 1227 Humboldt Trinity Summit along summit near Ranger Station 1828 Comment
  HSC16236  Clarkia amoena J. P. Tracy 1938-6-17 15957 Humboldt Cape Mendocino, S of point of the Cape 3 Comment
  UC183664  Clarkia amoena Joseph P. Tracy 1912-7-21 3758 Humboldt Alton Northern Coast Region 30 Comment
  CAS-BOT-BC160949  Clarkia amoena subsp. amoena C. L. Hitchcock; J. S. Martin 1939-7-14 5432 Humboldt Road bank 1 mile east of Shelter Cove Comment
  JEPS43688  Clarkia amoena subsp. huntiana Milo S. Baker 1923-7-20 68 Humboldt Redwood House North Coast Comment
  POM225268  Clarkia amoena subsp. huntiana P. A. Munz 1936-8-10 14339 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. Comment
  UC144077  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1908-6 2679 Humboldt nw slope Buck Mountain; Northern Coast Ranges 609 Comment
  UC183695  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1912-7-26 3831 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UCSB23037  Clarkia purpurea subsp. quadrivulnera Tracy, Joseph 1936-6-10 Humboldt south fork of Trinity river; mountain slopes west of its mouth 457 Comment
  JEPS1957 Image available Clarkia purpurea subsp. viminea W. L. Jepson 1902-8-13 1971 Humboldt near Redwood Creek; Hupa Road; Hupa Road, near Redwood Creek, Humboldt Co. Comment
  HSC38093  Clarkia rhomboidea Thomas W. Nelson, James Nelson 1976-5-30 2614 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC73748  Clarkia rhomboidea M. A. Baker 1980-7-15 2948 Humboldt Near Whiting Ridge. 1341 Comment
  UC494115  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  HSC26366  Claytonia perfoliata T. O. Osborne 1970-4-5 82 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  CAS-BOT-BC440091  Claytonia perfoliata subsp. perfoliata J. M. Miller 1974-6-3 367 Humboldt Horse Mountain, ca. 150 m N. of the junction between Forest Rds. 5N10 and 6N01. On the road shoulder of 5N10. 1371 Comment
  HSC39529  Claytonia saxosa Thomas W. Nelson 1976-6-14 2708 Humboldt S of Lassic Peak 1524 Comment
  HSC71810  Claytonia saxosa Thomas W. Nelson, Jane P. Nelson 1980-6-27 5952 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  SBBG69718  Claytonia sibirica L. Rowntree 1931-7-21 Humboldt near Ferndale Comment
  SD113970  Claytonia sibirica Darley F. Howe 1962-5-22 3261 Humboldt 3 miles east of Orick on Bald Mountain Road 395 Comment
  UC672988  Claytonia sibirica Joseph P. Tracy 1937-7-2 15388 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC443900  Claytonia sibirica David D. Keck 1948-7-2 6004 Humboldt E. side Rocky Ridge, E. of Berry's Summit, 8.5 mi. W. of Willow Creek, 1/4 mi. W. of boundary of Six Rivers Nat. For. 762 Comment
  HSC98695  Claytonia sibirica C. Witte 2007-5-21 53 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  UC672991  Claytonia sibirica Joseph P. Tracy 1933-5-20 12273 Humboldt near Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  CAS-BOT-BC92594  Clematis ligusticifolia Henry M. Pollard 1948-7-23 s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC499335  Clintonia andrewsiana H. C. Cantelow 1936-5-17 1341 Humboldt 3 mi. E. of Oriak Comment
  CAS-BOT-BC499336  Clintonia andrewsiana M. S. Jussel 1931-5-2 s. n. Humboldt 20 miles N. of Garberville Comment
  JEPS61594  Clintonia andrewsiana W. L. Jepson 1932-7-29 16444 Humboldt Van Duzen River, Grizzly Flat Van Duzen River; , Grizzly Flat Comment
  HSC99448  Clintonia uniflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 98 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS115074  Coincya monensis subsp. recurvata Andrea Pickart 2009-2-20 729 Humboldt Manila Dunes; End of Lupine Ave. 15 Comment
  JEPS25054  Collinsia bartsiifolia var. bartsiifolia Joseph P. Tracy 1919-5-31 5140 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC38791  Collinsia grandiflora J. P. Smith 1976-5-30 8824 Humboldt Near Black Rock on the road to Clear Lake 1524 Comment
  UC727690  Collinsia grandiflora Milo S. Baker 1946-6-15 11481 Humboldt Horse Mtn Rd at Ski Lodge Ski Lodge 1219 Comment
  UCR45410  Collinsia parviflora Barry Silver 1986-4-23 535 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC39617  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-6-15 2721 Humboldt Along old trail above Alder Springs 1585 Comment
  JEPS71031  Collomia grandiflora Milo S. Baker 1923-7-20 37 Humboldt head Yager Creek Comment
  UC1197855  Collomia grandiflora Joseph P. Tracy July, 1908 2785 Humboldt ridge between Van Duzen and Mad Rivers at Low Gap (Humboldt and Trinity counties); Northern Coast Ranges 457 Comment
  UC717114  Collomia heterophylla S. K. Harris 1942-6-12 1386 Humboldt Fickle Hill Road to Boynton Prairie (roadside banks; Sn 2 e) 600 Comment
  HSC97228  Collomia tinctoria Kiera A. Freeman, Heather J. Perry 2007-6-11 6 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1372 Comment
  CHSC98376  Collomia tracyi Dean Wm. Taylor 2004-6-24 19133 Humboldt Horse Mountain, along Titlow Hill Road, 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  JEPS109809  Collomia tracyi Dean W. Taylor 2004-6-24 19133 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit 1310 Comment
  HSC31444  Corallorhiza maculata D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5562 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC27513  Corallorhiza maculata J. D. Ackerman, A. Montalvo 1973-7-5 99 Humboldt 17 mi. E of Hoopa, on Grogan Hole Rd. Comment
  HSC16583  Corallorhiza mertensiana Doris K. Kildale 1926-5-2 1846 Humboldt Bald Mtn. road, between Bald Mtn. House and junction of Redwood Creek Road. Comment
  HSC28082  Corallorhiza mertensiana J. D. Ackerman, A. Montalvo 1973-7-4 94 Humboldt Grogan Hole Rd, 18 mi. E of Hoopa Comment
  HSC90429  Cordylanthus maritimus subsp. palustris Jean Hanson 1980-6-22 98 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  POM312521  Cordylanthus maritimus subsp. palustris Malcolm A. Nobs, S. Galen Smith 1949-8-3 1200 Humboldt 2 miles north of Eureka, bordering Humboldt Bay. Comment
  POM21053  Cordylanthus pilosus subsp. pilosus L. R. Abrams 1916-7-22 6158 Humboldt Between Little and Big Van Druzen River - Eureka - Red Bluff Road. Comment
  UC204865  Corethrogyne filaginifolia J. P. Tracy 1918-7-5 5025 Humboldt Mc Kee's Field; White Thorn Valley 304 Comment
  UC630635  Cornus canadensis Joseph P. Tracy 1939-7-9 16321 Humboldt Bald Mountain. at Lake Prairie Bald Mountain 1066 Comment
  HSC104440  Cornus canadensis Cheri Sanville, Bianca Hayashi Jun 2012 Humboldt North of Snow Camp Mountain Comment
  HSC6407  Cornus nuttallii Jack Rockwell 1962-4-29 43 Humboldt E bank of Redwood Creek, near Hwy. 299 549 Comment
  HSC95877  Cornus nuttallii Will Ferrand 2002-4-27 30 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  RSA1406  Cornus nuttallii E. R. Johnson 1929-08 1432 Humboldt Eel River. 91 Comment
  CAS-BOT-BC212175  Cornus sericea Doris K. Kildale 1925-6-27 769 Humboldt Yager Creek near mouth. Comment
  CAS-BOT-BC212176  Cornus sericea Thomas Nelson 1977-6-3 3385 Humboldt Mad River at south end of Mad River Bridge, North Coast Range 53 Comment
  HSC102041  Cornus sericea M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 944 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  HSC57091  Cornus sericea subsp. sericea Overton, Butler 1979-7-24 9805 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC76355  Cornus sericea subsp. sericea Denis Kearns 1981-7-23 418 Humboldt Near Whiteys Peak. 1524 Comment
  CAS-BOT-BC210537  Cornus sessilis L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  JEPS53366  Coronopus didymus W. L. Jepson 1932-7-28 16431 Humboldt Dyerville 88 Comment
  HSC28085  Coronopus didymus David Johnson 1973-11-27 Humboldt S side of Samoa Cookhouse Comment
  CAS-BOT-BC190003  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt East side of Big Lagoon. In 1100 acres, slope north above headquarters of Georgia Pacific Lumber Compan. Comment
  JEPS58666  Corylus californica Lincoln Constance 1934-5-24 636 Humboldt bordering lower Look Prairie on e side, South Fork Eel River, Bull Creek Region South Fork Eel River; Bull Creek Region, South Fork Eel River 121 Comment
  BLMAR230  Corylus cornuta subsp. californica Jennifer Anthony-Wheeler 1996-9-26 230 Humboldt King range, growing alng Bear creek between Wailaka & Nadelos campgrounds 548 Comment
  HSC37416  Corylus cornuta subsp. californica Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 509 Humboldt Along Lost Man Creek. 38 Comment
  SEINET3817862  Cotula coronopifolia Steve R. Johnson 1965-3-12 1 Humboldt 1 mile north of luffenholtz beach Comment
  HSC78083  Crassula aquatica L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 719 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  HSC77512  Crassula connata K. Berg 1984-4-8 520 Humboldt South spit of Humboldt Bay, 1.4 mi. S of South Jetty, E of road Comment
  UC1116211  Crassula connata var. eremica Joseph P. Tracy 1948-5-31 18013 Humboldt Alder Point 304 Comment
  UC492243  Crassula connata var. subsimplex Joseph P. Tracy 1931-3-26 9293 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R., Alton 30 Comment
  UCD112977  Crataegus douglasii Louis C. Wheeler 1950-8-14 6780 Humboldt 5 mi. east of Shelter Core. Comment
  CAS-BOT-BC290341  Crepis acuminata Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  SD39859  Crepis capillaris Edith A. Purer 1932-7-30 4679 Humboldt South or Orick Comment
  UC1051582  Crepis capillaris Joseph P. Tracy 1948-9-20 18221 Humboldt Mill Creek Hoopa Valley 106 Comment
  CAS-BOT-BC290588  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt About 5 miles east of Arcata along the road to Blue Lake Comment
  HSC5446  Crepis capillaris L. K. Weld 1967-7-16 2 Humboldt Myrtle Ave. 1 mi. S of Freshwater Corners Comment
  POM264599  Crepis capillaris C. R. Parks 1941-08 24189 Humboldt Roadsides and fields, vicinity of Trinidad Comment
  HSC74027  Crepis pleurocarpa Gail Newton 1980-7-11 1313 Humboldt Near Red Mtn. 1341 Comment
  HSC97632  Crepis pleurocarpa Cara Witte 2007-6-5 207 Humboldt Along Forest Service Road 4N32. Near Grouse Mountain 1413 Comment
  CAS-BOT-BC290909  Crepis setosa Henry M. Pollard 1948-8-8 s.n. Humboldt Between Orleans and Camp Creek Comment
  UC31346  Crocidium multicaule C. C. Marshall 1888-1 Humboldt Comment
  SEINET3875024  Crocosmia aurea Bennett, Dunn; Dziekanowski 1976-8-6 477 Humboldt Collected by Highway 101, North side of Orick.; 0 30 Comment
  HSC40818  Cryptantha affinis Thomas W. Nelson, Jane P. Nelson 1976-6-22 2851 Humboldt Along road to Goat Hill at spring. 1646 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
  HSC58047  Cryptantha affinis G. L. Clifton, Griswold 1979-8-1 11906 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC32552  Cryptantha flaccida Hy-Am Pum Jul 1888 Humboldt Comment
  UC175774  Cryptantha intermedia Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  UC673225  Cryptantha milobakeri Lincoln Constance and Reed C. Rollins 1942-5-11 2878 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  HSC54886  Cryptogramma acrostichoides G. L. Clifton, Griswold 1979-7-25 10895 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC440174  Cryptogramma acrostichoides Joseph P. Tracy 1919-9-23 5290 Humboldt Trinity Summit; Northern Coast Ranges 1828 Comment
  SD90539  Cuscuta pacifica var. pacifica Robert F. thorne, P. Everett 1965-8-8 35280 Humboldt North edge of Eureka, east of Hwy. 101 3 Comment
  JEPS93171  Cuscuta salina var. major Margriet Wetherwax and Kevin Downing 1993-8-9 2459 Humboldt on E side of Humboldt Bay, just N of Eureka; S side of Eureka Slough, near Bayside Road and Myrtle. Marsh at end of the road to church 5 Comment
  HSC82128  Cycladenia humilis D. K. Imper 1985-6-18 Humboldt At ridgetop 1.5 mi. N of Whitey's Peak 1707 Comment
  UC1222264  Cynoglossum grande Joseph P. Tracy 1946-6-23 17592 Humboldt near the McBride place at s.e. end Kneeland Prairie 762 Comment
  HSC68940  Cynosurus echinatus Jacqueline Greenleaf 1980-8-12 326 Humboldt Near Pistol Spring. 1082 Comment
  UC1103242  Cynosurus echinatus Joseph P. Tracy 1942-6-15 17141 Humboldt along South Fork of Eel River Miranda; along South Fork of Eel River 121 Comment
  UC1103634  Cyperus strigosus Joseph P. Tracy 1920-8-15 5377 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  CAS-BOT-BC136508  Cypripedium montanum Doris K. Kildale 1929-5-26 9116 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC1196445  Cypripedium montanum D. F. Young 1924-4-26 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC74653  Cystopteris fragilis M. A. Baker 1980-5-17 1226 Humboldt Near Le Perron Peak 792 Comment
  HSC74727  Cystopteris fragilis Gail Newton 1981-7-23 2282 Humboldt Near Bug Creek Butte. 1350 Comment
  JEPS35178  Cystopteris fragilis Joseph P. Tracy 1925-11-25 7325 Humboldt near S Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC14669  Cytisus scoparius Francis Winter 1960-4-23 Humboldt 1.0 mi W of Angel Ranch on Korbel-Maple Creek Rd. 381 Comment
  HSC40373  Cytisus scoparius Linda M. Barker 1976-3-11 1322 Humboldt 3 mi. W of Arcata Comment
  HSC9534  Dactylis glomerata D. B. Bader 1963-5-1 46 Humboldt Second of the Clam Beach lagoons, west of Hwy. 101, south end of lagoon on east bank. Comment
  HSC9540  Dactylis glomerata E. W. Styskel 1964-4-12 64 Humboldt Corner of Center Street and Hwy. 101 in Rio Dell. Comment
  CAS-BOT-BC189737  Danthonia californica Joseph P. Tracy 1932-7-10 10392 Humboldt Trinity Summit. Klamath Mountains. Corral Prairie. 1524 Comment
  UC184354  Danthonia californica var. americana Joseph P. Tracy 1912-6-9 3650 Humboldt Alton Northern Coast Region 30 Comment
  UC526686  Danthonia californica var. americana Joseph P. Tracy 1931-5-31 9548 Humboldt Kneeland Prairie Northern Coast Ranges 792 Comment
  UCD60969  Danthonia californica var. americana J. T. Mallory 1955-6-7 112 Humboldt North end of Luke Prairie. 350 Comment
  RSA10087  Danthonia californica var. californica Joseph P. Tracy 1930-7-10 8860 Humboldt Brannan Mountain 1220 Comment
  HSC20252  Darmera peltata Jack Rockwell 1962-4-29 59 Humboldt E bank of Redwood Creek, near Hwy. 299 549 Comment
  UC505103  Datisca glomerata Joseph P. Tracy 1932-9-18 10805 Humboldt Blue Slide on Van Duzen River Blue Slide; Northern Coast Ranges, Van Duzen River, Blue Slide 91 Comment
  HSC38880  Daucus carota J. P. Smith 1971-10-9 4991 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  CDA38308  Daucus pusillus T. C. Fuller 1958-6-17 1904 Humboldt Zanone Ranch, Cape Mendocino. 0 Comment
  HSC100617  Delphinium Carl C. Marshall Apr 1886 187 Humboldt Vicinity of Humboldt Bay. Comment
  SEINET12104065  Delphinium decorum F. H. Utech 1988-5-23 88 -283 Humboldt along CA 36 from Bridgeville enroute to Dinsmore 800 Comment
  JEPS43413  Delphinium decorum subsp. decorum W. L. Jepson 1902-7-16 2050 Humboldt Trinity Summit, Horse Prairie Comment
  CAS-BOT-BC9032  Delphinium decorum subsp. tracyi Doris K. Kildale 1928-5-19 5213 Humboldt Chalk Mountain Comment
  HSC102079  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 981 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC10313  Delphinium hesperium LeRoy Abrams 1916-7-11 6000 Humboldt Between Blacksberg and Bridgeville Comment
  HSC85771  Delphinium hesperium Andrea Begnoche, Leonel Arguello, Bobbi Schnell 1987-4-24 41 Humboldt 24 mi. E of Blue Lake on Titlow Rd., 100 yds. from Hwy. 299 854 Comment
  UC161541  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1911-7-7 3376 Humboldt meadows on mountainside 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CAS-BOT-BC10137  Delphinium menziesii Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 2.5 mi. NE of Cape Town on road to Ferndale Comment
  HSC37516  Delphinium menziesii J. D. Ackerman 1974-5-25 265 Humboldt 0.25 mi. S of Lufenholtz Beach between Moonstone and Trinidad Comment
  HSC25010  Delphinium nudicaule G. N. Bos 1965-5-15 270 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  JEPS23367  Delphinium nudicaule Joseph P. Tracy 1927-5-30 8084 Humboldt near Briceland; Northern Coast Ranges 243 Comment
  SD37307  Delphinium nudicaule Marie Cummings 1933-5-22 109 Humboldt Near Blockburg Comment
  CAS-BOT-BC121968  Delphinium trolliifolium Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC48786  Delphinium trolliifolium Brad Klipfel 1975-6-17 661 Humboldt Along Titlow Hill Rd. Comment
  HSC37428  Delphinium trolliifolium D. W. Snell 1964-4-18 49 Humboldt Mad River bottom, 3 mi. N of Blue Lake Comment
  RSA20944  Delphinium trolliifolium Carl B. Wolf 1937-6-19 8916 Humboldt N Coast Range, 3 miles NE of Little Van Duzen River on road to Dinsmores. 762 Comment
  UC1196344  Delphinium trolliifolium Joseph P. Tracy 1911-7-12 3525 Humboldt on summit between Berry's (on Redwood Creek) and Three Creeks; Northern Coast Ranges 1097 Comment
  UC503036  Delphinium trolliifolium Joseph P. Tracy 1929-7-4 8638 Humboldt near Coyote Peak; Northern Coast Ranges, French Camp Ridge 1066 Comment
  HSC9588  Deschampsia cespitosa J. A. Waller 1965-5-16 46 Humboldt Humboldt Bay. Comment
  SEINET10515720  Deschampsia cespitosa Mark Stopher 1980-6-4 Stopher 95 Humboldt Very common along Elk River near Hwy 101 bridge. T4N R1W sw 1/4 sec 4, Eureka quadrangle. Elevation 1 mi. 1 Comment
  CAS-BOT-BC192704  Deschampsia danthonioides Doris K. Kildale 1928-7-1 5309 a Humboldt French Camp - Bald Hills, Orick - Martins Ferry Road Comment
  RSA126949  Deschampsia danthonioides H. S. Yates 1936-6-17 5718 Humboldt Burr Valley; South Fork Pk. 1646 Comment
  UCD61390  Deschampsia danthonioides A. H. Murphy 1951-5-21 Humboldt Tooby and Prior Ranch, Blocksburg. Experimental grazing pasture, 2 miles S of Blocksburg. Comment
  HSC102184  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1098 Humboldt Patterson Meadows 1566 Comment
  HSC63882  Deschampsia elongata M. A. Baker 1979-6-29 960 Humboldt Hopkins Creek 750 Comment
  HSC65115  Deschampsia elongata J. P. Smith 1973-5-26 6856 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  POM210034  Deschampsia elongata H. E. Parks 1931-05 3646 a Humboldt Big Lagoon Comment
  UC187265  Deschampsia elongata Joseph P. Tracy 1908-6 2710 Humboldt opposite Buck Mt. Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  UC905063  Deschampsia elongata Henry M. Pollard 1948-7-19 Humboldt Orlegno to Red Cap Creek (n. river rd.) Comment
  SEINET3071060 Image available Deschampsia holciformis Joseph P. Tracy 1934-7-20 13465 Humboldt Big Lagoon Comment
  JEPS9737  Dicentra formosa Joseph P. Tracy 1933-5-28 12414 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  SEINET12805277  Dicentra formosa John D. Freeman, Ruth F. Freeman 1967-1 586 Humboldt Just w of Cal Hwy 36 and just N of Carlotta 43 Comment
  HSC8356  Dicentra formosa Eugene Andreuccetti 1964-4-11 18 Humboldt 1/2 mi. S of Garberville on Hwy. 101 Comment
  CAS-BOT-BC402408  Dicentra formosa subsp. formosa Joseph P. Tracy 1933-7-16 12794 Humboldt North Coast Ranges. South Fork Mt. 1676 Comment
  HSC3082  Dichelostemma capitatum subsp. capitatum R. Spellenberg 1965-6-14 1121 Humboldt 2 mi. E of Kneeland, Kneeland Prairie Comment
  HSC97467  Dichelostemma capitatum subsp. pauciflorum Cara Witte 2007-5-29 126 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  CHSC31277  Dichelostemma ida-maia Mark Stopher 1980-5-28 72 Humboldt Hillside along Hwy 169 1.2 mi e of Martins Ferry Bridge. 170 Comment
  HSC38482  Dichelostemma ida-maia D. E. Anderson, J. P. Smith 1971-6-18 - 1062 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  HSC70662  Dichelostemma ida-maia Gail Newton 1980-7-14 1545 Humboldt Near Deadman Ridge 1097 Comment
  RSA120194  Dichelostemma ida-maia S. S. Tillett 1956-7-6 622 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  UC1133927  Dichelostemma ida-maia A. E. Wieslander 1931-5-15 191 Humboldt Hoopa Indian Reservation Hoopa Quad. Comment
Read comments
May 14 2010
  CAS-BOT-BC501020  Dichelostemma ida-maia D. E. Breedlove 1961-7-4 649 Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  UCSB22162  Dichelostemma ida-maia Keefe, Joseph 1967-7-8 Humboldt Avenue of the Giants, 2.4 miles north of Miranda 121 Comment
  UC1198161  Dichelostemma multiflorum Joseph P. Tracy 1911-7-6 3346 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  JEPS11291  Digitalis purpurea Lincoln Constance 1934-5-26 682 Humboldt s end Dyerville Bridge (bar of South Fork of Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  UC535744  Digitalis purpurea Eleanor Armstrong 1174 Humboldt Richardson Grove 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-BC150338  Diplacus aurantiacus Doris K. Kildale 1927-5-15 3244 Humboldt Petrolia, back of Mattole River Comment
  RSA249498  Dipsacus fullonum R. F. Thorne, P. C. Everett 1965-8-9 35282 Humboldt 2.5 miles N of Arcata. 8 Comment
  RSA1088  Disporum smithii E. R. Johnson 1928-8-26 1148 Humboldt Arcata. Comment
  RSA168933  Disporum smithii Joseph P. Tracy 1951-6-14 19418 Humboldt Snow Camp. 1402 Comment
  UCR67631  Disporum smithii Michael A. Hanson 1990-5-21 70 Humboldt Arcata, 0.5 mi (0.8 km) east of Humboldt State University Life Science Building. 159 Comment
  RSA46820  Disporum smithii Doris K. Kildale 1926-3-26 1636 Humboldt Old Kneeland road. Comment
  HSC82972  Distichlis spicata A. L. Eicher 1986-7-7 Humboldt Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  HSC102009  Dodecatheon alpinum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 910 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC97460  Dodecatheon hendersonii C. Witte 2007-5-8 13 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  UC154178  Dodecatheon hendersonii Mrs. M. H. Manning 1902-3 Humboldt near Hupa; near Hupa Comment
  HSC102078  Dodecatheon jeffreyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 980 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1199495  Downingia elegans Joseph P. Tracy 1937-7-19 15462 Humboldt Larrabee Valley 731 Comment
  POM256487  Downingia elegans var. corymbosa Joseph P. Tracy 1930-6-15 8739 Humboldt Larrabee Creek, near Bosworth's; North Coast Ranges. 457 Comment
  UCD55079  Downingia willamettensis Rachel Foster 1970-1 F70- 96 -11 Humboldt Hydesville. Adjacent to Hydesville School. Comment
  JEPS1611  Draperia systyla Joseph P. Tracy 1935-7-31 14389 Humboldt Devil's Backbone; ridge connecting Trinity Summit with Salmon Summit 1524 Comment
  RSA0011668  Drosera rotundifolia C. B. Wolf 1934-7-2 5897 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC32284  Drymocallis rhomboidea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5618 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  JEPS35200  Dryopteris arguta W. L. Jepson 1932-8-9 16542 Humboldt Deerfoot Glade Bull Creek 121 Comment
  CAS-BOT-BC113802  Dulichium arundinaceum Joseph Prince Tracy 1938-9-25 16173 Humboldt Dense masses in shallow water, Bald Mountain, at Lake Prairie. 1066 Comment
  CAS-BOT-BC113438  Eleocharis bella Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region. Comment
  UC666918  Eleocharis macrostachya Joseph P. Tracy 1934-7-20 13464 Humboldt Big Lagoon, small farm on shore 3 Comment
  UC249740  Eleocharis parvula Joseph P. Tracy with H. E. Parks 1924-8-3 6744 Humboldt Stone Lagoon 6 Comment
  CAS-BOT-BC203830  Elymus X hansenii Joseph P. Tracy 1930-7-16 9054 Humboldt South Fork Mountain; open glades along summit near Blake Lookout 1737 Comment
  UC1541606  Elymus X hansenii Harold E. Parks and Joseph P. Tracy 1934-6-27 11049 Humboldt Horse Mountain 1280 Comment
  SEINET201036  Elymus elymoides subsp. brevifolius Joseph P. Tracy 1919-9-23 5279 Humboldt Trinity Summit 1829 Comment
  HSC58670  Elymus elymoides var. elymoides Gilbert Muth 1979-8-1 12106 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC58677  Elymus elymoides var. elymoides Gilbert Muth 1979-8-1 12187 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC36619  Elymus glaucus J. D. Ackerman 1974-5-25 256 Humboldt Trinidad, Trinidad Beach S of Trinidad Head. Comment
  HSC75262  Elymus glaucus J. O. Sawyer, M. A. Erickson 1980-8-18 4056 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  UCD61278  Elymus macounii August L. Hormay 1932-5-12 Humboldt Bull Creek Road, near bridge. Comment
  HSC98925  Elymus multisetus Cara Witte 2008-7-30 969 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B. 1417 Comment
  CAS-BOT-BC204332  Elymus trachycaulus subsp. trachycaulus David D. Keck 1944-7-11 5491 Humboldt 3 mi. N. E. of Capetown 152 Comment
  UC1103293  Elytrigia repens Joseph P. Tracy 1944-7-1 17477 Humboldt Eureka 30 Comment
  SD51252  Epilobium angustifolium Darley F. Howe 1961-8-1 3102 Humboldt 11.2 miles north of Trinidad on Highway 101. Comment
  POM271541  Epilobium angustifolium var. macrophyllum Lyman Benson 1928-7-8 725 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  CAS-BOT-BC166891  Epilobium canum subsp. latifolium Lester Rowntree 1937-8-15 s.n. Humboldt Maple Creek east of Eureka Comment
  HSC16549  Epilobium canum subsp. latifolium Paul Shields 1955-9-25 Humboldt 17 mi. SE of Willow Creek Comment
  RSA275298  Epilobium canum subsp. latifolium Thomas W. Nelson 1977-8-6 3722 Humboldt Lassics: serpentine ridge between Blanket Creek and Bear Creek just below Blanket Rock. Unsurveyed section east of T2S, R5E, Sec. 25 1494 Comment
  HSC101058  Epilobium ciliatum John McRae 1997-7-2 240 Humboldt Near south portion of Lassics Botanical Area; Van Duzen Rd off Hwy. 36 to Forest Service Rd. 1S07, west on FS Rd. 2S08 to 2S08C, ~ 5 mi. further 1555 Comment
  HSC32948  Epilobium ciliatum subsp. ciliatum Thomas W. Nelson, James Nelson 1973-5-28 958 Humboldt McKeown Ranch N of Dinsmore 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
  UC583074  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-9 14330 Humboldt roadside on Redwood Hwy 5 mi n Humboldt-Mendocino Co. line; South Fork Of Eel River Comment
  UC726349  Epilobium ciliatum subsp. ciliatum A. A. Heller 1923-7-8 13767 Humboldt 10 mi s Dyerville; Humboldt Camp Comment
  HSC49645  Epilobium ciliatum subsp. glandulosum J. P. Smith, Steve Selva 1970-6-30 4138 Humboldt Comment
  HSC38333  Epilobium ciliatum subsp. watsonii Peter Sorensen 1976-7-14 Humboldt N Spit of Humboldt Bay, S of Samoa in the vicinity of Humboldt Co. Airport Comment
  RSA249499  Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. C. Everett 1965-8-7 35201 Humboldt Samoa Peninsula. Elevation near sea level. Comment
  UC1222858  Epilobium densiflorum Joseph P. Tracy 1950-6-18 18843 Humboldt Davis Creek Cape Mendocino (ditch, s of point of Cape) 3 Comment
  JEPS31500  Epilobium foliosum Joseph P. Tracy 1939-5-30 16302 Humboldt Dinsmore's Ranch Northern Coast Ranges, Van Duzen River (opposite Buck Mountain) 670 Comment
  UC144091  Epilobium hallianum Joseph P. Tracy 1908-6 2753 Humboldt near pond above mouth of Little Van Duzen (nw slope of mt.); Northern Coast Ranges, Buck Mountain 762 Comment
  UC1198479  Epilobium minutum Joseph P. Tracy 1933-7-25 12839 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  SEINET6944762 Image available Epilobium minutum W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  HSC53953  Epilobium oreganum Terry Griswold, Marvin Butler 1979-7-11 7003 Humboldt Near Snow Camp Lake, close to the town of Willow Creek 1393 Comment
  HSC55147  Epilobium oregonense G. L. Clifton, Griswold 1979-8-1 12067 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  POM134801  Epilobium septentrionale Carl Duncan 1920-9-22 s.n. Humboldt Hoopa Indian Reservation, Hoopa Valley Comment
  HSC32543  Epilobium torreyi Thomas W. Nelson 1973-8-19 1117 Humboldt McKeown Ranch N of Dinsmore, floodplain of Mad River Comment
  UC1239785  Equisetum arvense Joseph P. Tracy 1949-6-25 18357 Humboldt Box Camp Meadow Trinity Summit 1463 Comment
  UC667937  Equisetum arvense Joseph P. Tracy 1937-7-2 15391 Humboldt ne of Hawkins Bar Happy Camp Mt.; Trinity Summit Range 1280 Comment
  POM182455  Equisetum laevigatum Joseph P. Tracy 1913-6-16 4142 Humboldt Dinsmore s Ranch, in valley of Van Duzen River. Opposite Buck Mtn. 762 Comment
  UC1239792  Equisetum laevigatum H. E. Parks and Joseph P. Tracy 1932-5-11 9966 Humboldt along R.R. Samoa; Northern Coast Ranges 6 Comment
  HSC30351  Equisetum telmateia subsp. braunii Dale R. Gradek 1974-5-28 93 Humboldt 0.25 mi. E of Hwy. 101 on Jolly Giant Creek 61 Comment
  SJSU8164  Equisetum telmateia subsp. braunii R. D. Spadoni 1965-3-26 Humboldt Trinidad Comment
  POM89792  Eragrostis hypnoides Joseph P. Tracy 1920-8-20 5369 Humboldt Klamath River at mouth of Bluff Creek Comment
  RSA10056  Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley, at Willow Creek. Comment
  HSC9785  Eragrostis mexicana subsp. virescens J. P. Tracy 1931-9-7 9653 Humboldt Trinity River Valley, Willow Creek Comment
  RSA44367  Eragrostis mexicana subsp. virescens Henry M. Pollard 1947-8-7 1949 Humboldt Klamath River sandbar near Orleans Comment
  CAS-BOT-BC299910  Erechtites minimus Doris K. Kildale 1925-7-28 1104 Humboldt On the Van Duzen River near Strong's Station Comment
  POM356838  Erechtites minimus B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  UCR48863  Erechtites prenanthoides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 20 Humboldt Beside Mattole Rd at Bear River Ridge, south of Ferndale 525 Comment
  HSC41178  Ericameria nauseosa var. speciosa Robert M. Specht 1976-8-22 539 Humboldt ca. 3.95 mi. S of Hwy. 299 on Titlow Hill Rd. to Horse Mtn. Comment
  CAS-BOT-BC296109  Erigeron foliosus var. confinis Marcus E. Jones 1931-7-16 29131 Humboldt Junction east of Arcata Comment
  UC165069  Erigeron foliosus var. confinis Joseph P. Tracy 1911-7-6 3353 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek 762 Comment
  POM187846  Erigeron foliosus var. mendocinus Marcus E. Jones 1931-7-16 29149 Humboldt Junction, East of Arcata. Comment
  UC479508  Erigeron foliosus var. mendocinus Marcus E. Jones, A. M. 1931-7-16 29149 Humboldt junction e Arcata Comment
  HSC33818  Erigeron foliosus var. mendocinus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1917 Humboldt Growing on moist rock wall beside Hwy 36 W of Grizzley Creek Comment
  RSA39091  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12360 Humboldt 1 mile west of Van Duzen Redwood State Park Comment
  RSA39093  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12358 Humboldt Van Duzen Redwood State Park. Comment
  CAS-BOT-BC308076  Erigeron glaucus J. P. Tracy 1900-7-4 888 Humboldt Samoa, opp. Eureka Comment
  JEPS94286  Erigeron glaucus Vernon Oswald and Lowell Ahart 1997-9-4 8851 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  CAS-BOT-BC295174  Erigeron inornatus Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC57134  Erigeron inornatus var. inornatus Overton, Butler 1979-7-25 9911 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  JEPS21931  Erigeron inornatus var. inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  UC164848  Erigeron inornatus var. inornatus Joseph P. Tracy 1911-7-8 3442 Humboldt near mouth of Willow Creek (valley of Trinity River); Trinity River Valley 152 Comment
  HSC57622  Erigeron klamathensis G. L. Clifton, Griswold 1979-7-25 10752 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UCSB15446  Erigeron philadelphicus Breedlove, Dennis 1961-7-3 Humboldt Along Eel River, 7.4 miles north of Phillipsville 243 Comment
  CAS-BOT-BC214583  Erigeron philadelphicus Doris K. Kildale 1926-5-31 2023 Humboldt Miranda on South Fork of Eel River Comment
  JEPS41377  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1934-5-8 16723 Humboldt Benbow, s Humboldt County South Fork Eel River, Benbow Comment
  CAS-BOT-BC300278  Erigeron strigosus var. strigosus L. R. Abrams 1918-6-16 7174 Humboldt Willow Creek Comment
  CAS-BOT-BC224259  Eriodictyon californicum P. C. Everett; E. K. Balls 1959-10-24 23953 Humboldt 2.8 mi. sw. from Siskiyou-Humboldt Co. line, Somesbar to Orleans 198 Comment
  HSC32329  Eriogonum compositum var. compositum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5670 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC259161  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  UC1198150  Eriogonum latifolium Joseph P. Tracy 1938-6-17 15960 Humboldt near ocean shore (s of point of Cape); Cape Mendocino 3 Comment
  RSA53819  Eriogonum luteolum H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  CAS-BOT-BC259536  Eriogonum luteolum var. luteolum Milo S. Baker 1927-8-14 2435 a Humboldt Near Summit of ridge West of Bull Creek Comment
  CAS-BOT-BC261494  Eriogonum nudum var. nudum Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1371 Comment
  HSC60052  Eriogonum nudum var. nudum M. A. Baker 1978-5-6 487 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC1198138  Eriogonum nudum var. nudum Joseph P. Tracy 1930-6-15 8766 Humboldt Dobbyn Creek 152 Comment
  UC1198139  Eriogonum nudum var. nudum Joseph P. Tracy 1939-8-20 16430 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC672904  Eriogonum nudum var. nudum Joseph P. Tracy 1932-7-20 10728 Humboldt open places at Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  RSA53802  Eriogonum nudum var. nudum H. M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek. Klamath River Canyon. Comment
  UC275279  Eriogonum roseum Joseph P. Tracy 1923-9-10 6547 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC40826  Eriogonum strictum var. greenei Thomas W. Nelson, James Nelson 1976-7-26 3041 Humboldt Middle pk. of Mt. Lassic group 1738 Comment
  RSA0005167  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. 1296 Comment
  UCR37846  Eriogonum umbellatum var. nelsoniorum Walter C. Overton, Marvin Butler 1979-7-26 9994 Humboldt North Coast Range, near Willow Creek, east fork, close to the town of Willow Creek 1341 Comment
  HSC54892  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-7-25 10932 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC75943  Eriophyllum lanatum var. achilleoides Overton, Butler 1979-7-24 9706 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  CAS-BOT-BC301012  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1925-6-28 913 Humboldt Fleener Creek Comment
  CHSC33060  Eriophyllum lanatum var. arachnoideum James P. Smith 1973-5-26 6839 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  HSC98102  Eriophyllum lanatum var. grandiflorum Cara Witte 2007-6-20 311 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  UC1223134  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1944-7-3 17480 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC129579  Eriophyllum lanatum var. lanceolatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5711 Humboldt Hoopa Valley Comment
  CAS-BOT-BC301925  Eriophyllum staechadifolium A. A. Heller 1924-7-23 13878 Humboldt Along the highway between Little River and Trinidad Comment
  JEPS14258  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1938-8-20 16125 Humboldt Alton 30 Comment
  CAS-BOT-BC41571  Erysimum capitatum Doris K. Kildale 1928-4-29 5968 Humboldt Horse Mountain. 792 Comment
  HSC102600  Erysimum capitatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1587 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC64123  Erysimum capitatum var. capitatum J. P. Smith 1973-5-26 6791 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC6785  Erysimum menziesii S. J. Hawks 1965-3-19 8 Humboldt W of Eureka airport. Comment
  JEPS505  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC504310  Erythronium californicum Michalski; Raum; Hopson 1987-4-1 87 Humboldt Larabee Buttes Comment
  UC1222542  Erythronium californicum Joseph P. Tracy 1950-4-20 18616 Humboldt two mi w Dinsmore's (lower foothills of nw slope of mountain); Buck Mountain 762 Comment
  UC1197646  Erythronium grandiflorum Joseph P. Tracy 1932-7-15 10600 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  HSC38788  Erythronium grandiflorum subsp. grandiflorum J. P. Smith 1976-5-30 8825 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  HSC48757  Erythronium grandiflorum subsp. grandiflorum Brad Klipfel 1973-6-10 71 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC146199  Erythronium revolutum Ethel Tracy 1907-5-4 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1196290  Eschscholzia californica Joseph P. Tracy 1912-7-4 3734 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC58769  Eucephalus ledophyllus Terry Griswold 1979-7-26 10299 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1199349  Euchiton gymnocephalus Joseph P. Tracy 1936-8-1 15058 Humboldt 6 mi se Blue Lake (hillsides near Canyon Creek) 365 Comment
  UC1223114  Euchiton gymnocephalus Joseph P. Tracy 1946-6-23 17596 Humboldt se end Kneeland (Dan McBride's place); Kneeland Prairie 762 Comment
  HSC5688  Euchiton gymnocephalus W. D. Stevens 1967-7-22 61 Humboldt Above the dirt road from old Hwy. 101 to the top of the N bank of the Mad River Comment
  POM47094  Euonymus occidentalis J. B. Feudge 1923-7-25 86 Humboldt Fortuna 23 Comment
  UC30135  Euonymus occidentalis var. occidentalis W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  UCR94919  Euphorbia helioscopia D. L. Koutnik 1996-7-3 s.n. Humboldt Manila. Comment
  UC1199301  Eurybia radulina Joseph P. Tracy 1930-9-14 9188 Humboldt Kneeland Prairie 762 Comment
  BLMAR699  Eurybia radulina Jennifer Wheeler 2013-10-25 699 Humboldt Lacks Creek, Upper Round Prairie 731 Comment
  JEPS31918  Eurybia radulina Lincoln Constance 1934-6-19 911 Humboldt Grasshopper Peak (near summit) South fork Eel River, Grasshopper Peak 914 Comment
  UC70921  Festuca californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 Humboldt Hoopa Mt. Comment
  RSA10078  Festuca elmeri Joseph P. Tracy 1927-5-8 7962 Humboldt Phillipsville open oak groves facing South Fork of Eel River. 122 Comment
  RSA10135  Festuca idahoensis Joseph P. Tracy 1933-7-25 12890 Humboldt Grouse Mountain, North Coast Ranges 1524 Comment
  CAS-BOT-BC278811  Festuca occidentalis Joseph P. Tracy 1930-7-16 9097 Humboldt Northern Coast Ranges. South Fork Mountain. Near McKay Camp 1676 Comment
  HSC99020  Festuca occidentalis Cara Witte 2007-6-7 227 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  HSC9954  Festuca occidentalis R. H. Berg 1963-5-1 62 Humboldt HSU Campus, Arcata, CA Comment
  POM126170  Festuca occidentalis Joseph P. Tracy 1900-5-22 796 Humboldt Immediate vicinity of Eureka. 0 Comment
  RSA10112  Festuca occidentalis Joseph P. Tracy 1932-7-17 10655 Humboldt Near Corral Prairie, Trinity summit, Klamath mountains. 1524 Comment
  UC70923  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5362 Humboldt near Harris Comment
  SEINET200833  Festuca roemeri Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC278963  Festuca rubra David D. Keck 1948-7-1 5970 Humboldt South side of Big Lagoon Comment
  CAS-BOT-BC278971  Festuca rubra Malcom A. Nobs; S. Galen Smith 1949-8-3 1171 Humboldt Around Fields Landing Comment
  HSC39052  Festuca rubra Linda M. Barker 1976-6-22 1617 Humboldt 3 mi. W of Arcata Comment
  RSA126628  Festuca rubra H. S. Yates 1936-6-17 5701 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC1145216  Festuca rubra Joseph P. Tracy 1938-7-4 15986 Humboldt Valley of South Yager Creek 762 Comment
  UC247503  Festuca rubra A. S. Hitchcock 1915-7-13 469 Humboldt back of Humboldt Bay; Eureka Comment
  UCD66367  Festuca rubra Linda M. Barker 1976-6-22 1617 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1103707  Festuca subulata Joseph P. Tracy 1913-6-20 4215 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC526846  Festuca subulata Joseph P. Tracy 1934-7-18 13457 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC38631  Festuca viridula D. E. Anderson, J. P. Smith 1971-6-14 - 1050 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  SEINET200725  Filago gallica J. P. Tracy 1914-5-14 4467 Humboldt Fort Seward 122 Comment
  HSC39972  Fragaria X ananassa Linda M. Barker 1976-3-22 1335 Humboldt 3 mi. W of Arcata Comment
  HSC41846  Fragaria vesca N. G. Sugihara 1977-4-23 12 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC61635  Fragaria virginiana Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte Co. line, Onion Lake 1067 Comment
  BLMAR243  Frangula californica subsp. californica Jennifer Anthony-Wheeler 1997-7-24 243 Humboldt Lacks Creek, growing beside rd with ceanothus & rubus 1219 Comment
  CAS-BOT-BC53405  Frangula californica subsp. occidentalis Carl B. Wolf 1931-8-30 2377 Humboldt Lord Ellis Road, 9 mi. above Willow Creek on grade from Willow Creek to Blue Lake 304 Comment
  CAS-BOT-BC59966  Frangula purshiana H. E. McMinn 1922-8-5 347 Humboldt Along Van Duzen River Comment
  HSC12313  Frangula purshiana Wendell Wood 1970-9-22 296 Humboldt McKinleyville, E end of Chateau Way 107 Comment
  HSC18410  Frangula purshiana Francis Winter 1960-5-6 Humboldt Across from Azalea State Park Entrance Comment
  HSC18417  Frangula purshiana L. J. Coombes 1964-5-18 50 Humboldt 2.5 mi E of McKinleyville on Hwy. 299 Comment
  HSC59446  Frangula purshiana Kenneth Clark 1979-5-29 367 Humboldt 0.1 mi. past end of Granite Ave. 23 Comment
  UC1197624  Fritillaria affinis Joseph P. Tracy 1937-6-12 8151 Humboldt Horse Mountain 1371 Comment
  UC1197633  Fritillaria affinis Joseph P. Tracy 1921-8-28 5946 Humboldt Guthrie Gulch; Northern Coast Ranges, Guthrie Gulch 121 Comment
  CDA43226  Fumaria capreolata Richard R. Halse 2013-3-28 8767 Humboldt Eureka; by a Texaco station near 3543 Broadway St. (U.S. Highway 101) and its intersection with McCullens Ave. Comment
  UC275325  Fumaria officinalis Joseph P. Tracy 1924-5-17 6679 Humboldt Eureka; Northern Coast Ranges 0 Comment
  CHSC19947  Galium aparine M. S. Taylor 1975-3-25 427 Humboldt Between 11th and 12th Sts, at end of Citrus Ave, Chico. Comment
  POM148009  Galium aparine J. B. Feudge 1923-7-29 727 Humboldt Rohnerville. 15 Comment
  HSC40043  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1976-7-1 2896 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC41285  Galium bolanderi Brad Klipfel 1974-7-23 477 Humboldt Horse Mtn. Comment
  JEPS6719  Galium bolanderi Joseph P. Tracy 1935-7-29 14339 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  JEPS6702  Galium bolanderi Chesnut and Drew July 1888 Humboldt S. Fork Mt. Comment
  UC602507  Galium bolanderi Joseph P. Tracy 1927-5-15 8043 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC1586848  Galium californicum subsp. californicum Juha Pykala and D. H. Norris 1987-5-20 802 Humboldt along Bull Creek Road from Panther Gap to 4 miles S of Panther Gap Comment
  UC175782  Galium californicum subsp. californicum Joseph P. Tracy 1912-7-23 3805 Humboldt along river 5 mi above mouth; Northern Coast Ranges, South Fork Eel River 30 Comment
  CDA6673  Galium divaricatum T. C. Fuller 1958-6-17 603 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  JEPS52841  Galium muricatum Lauramay T. Dempster 1963-9-3 3920 Humboldt Hwy 299 just w Boise Creek (transmission line clearing) 304 Comment
  UC169074  Galium muricatum Harley P. Chandler 1901-5-31 1296 Humboldt The Swag Hupa Indian Reservation, Hoopa Mtn. 1097 Comment
  HSC39330  Galium parisiense J. P. Smith 1976-10-30 8994 Humboldt Mad River, E of Essex Lane exit. Comment
  UC175593  Galium porrigens Joseph P. Tracy 1912-7-21 3767 Humboldt Alton Northern Coast Region 30 Comment
  JEPS52751  Galium porrigens var. porrigens L. T. Dempster and G. L. Stebbins 1963-7-8 3843 Humboldt at highway crossing n Willow Creek town; Willow Creek 140 Comment
  HSC100643  Galium trifidum Carl C. Marshall Aug 1886 254 Humboldt Damp woods. Comment
  SD88387  Galium trifidum subsp. columbianum Darley F. Howe 1972-6-30 Humboldt Trinidad Comment
  HSC57325  Galium triflorum Overton, Butler 1979-7-24 9643 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC169000  Galium triflorum Joseph P. Tracy 1911-7-5 3314 Humboldt near its mouth Willow Creek (tributary of Trinity River); Northern Coast Ranges 243 Comment
  HSC72828  Garrya buxifolia Gail Newton 1980-6-16 194 Humboldt Near Onion Mtn. 1280 Comment
  HSC103981  Garrya elliptica C. Reynolds 2015-4-12 28 Humboldt Just before entrance onto footpath at Freshwater Beach from Kuchel Visitor Center 1 Comment
  UC21582  Garrya elliptica W. C. Blasdale 1896-6-3 Humboldt Eureka; w Eureka Comment
  UCD121099  Garrya elliptica Linda M. Barker 1976-1-24 1310 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  JEPS66732  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 Humboldt Willow Creek; Trinity River Valley 152 Comment
  SEINET12518332 Image available Gastridium ventricosum Harley P. Chandler 1901-1 1506 Humboldt Klamath River, North Coast Ranges 427 Comment
  CAS-BOT-BC58908  Gaultheria shallon Carl B. Wolf 1927-8-22 804 Humboldt 1 mile south of Orick Comment
  HSC7809  Gaultheria shallon D. A. Shally 1965-5-15 44 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  RSA467223  Gaultheria shallon T. Gertrude Williamson 1924-7-11 s.n. Humboldt Arcata. Comment
  SBBG5537  Gaultheria shallon H. and M. Dearing 1939-5-21 3449 Humboldt near Trinidad 91 Comment
  SEINET2031090 Image available Gaultheria shallon Joseph P. Tracy 1908-1 2863 Humboldt Valley of Van Duzen River; opposite Buck Mountain 762 Comment
  UC144070  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1908-6 2800 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS24349  Gentiana calycosa Joseph P. Tracy 1939-8-16 16412 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  SEINET4853844  Gentiana plurisetosa D. H. Esplin 1969-1 20 Humboldt Six Rivers N. F.: 1 mi N of North Trinity Mountain. 1829 Comment
  HSC23999  Geranium bicknellii Tim Baroni 1971-7-6 125 Humboldt 15 mi. S of Ferndale on Mattole Rd. Comment
  HSC8647  Geranium dissectum D. B. Bader 1963-4-1 39 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101, along the R.R. tracks Comment
  HSC59717  Geranium dissectum Clark L. Miller 1979-5-9 2111 Humboldt Samoa Dunes off Samoa Blvd. Comment
  HSC90389  Geranium pusillum Jean Hanson 1980-4-12 41 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island Comment
  HSC12777  Geranium retrorsum Jana Kattenhorn 1970-10-24 140 Humboldt Arcata, HSU campus, S of Harpst St. Comment
  CAS-BOT-BC457031  Geum macrophyllum Volney Rattan 1883-3-6 s.n. Humboldt Unspecified Comment
  UC1197927  Gilia capitata subsp. capitata Joseph P. Tracy 1939-7-9 16330 Humboldt Snow Camp 1402 Comment
  UC1225824  Gilia capitata subsp. capitata Joseph P. Tracy 1948-6-13 18051 Humboldt 2 mi n Harris; near Harris 609 Comment
  CAS-BOT-BC226149  Gilia capitata subsp. pacifica Doris K. Kildale 1927-7-1 3626 Humboldt Alton Hill 30 Comment
  POM193010  Gilia capitata subsp. pacifica H. E. Parks, Joseph P. Tracy 1930-5-25 0793 Humboldt Near Bridgeville. Comment
  CAS-BOT-BC225475  Gilia millefoliata Lewis S. Rose 1972-6-5 72004 Humboldt Samoa 3 Comment
  CHSC52941  Gilia millefoliata L. P. Janeway 1984-4-11 731 Humboldt On the North Spit of Humboldt Bay; Northwest of the boat ramp and north of the Coast Guard Sta. 4 Comment
  HSC16988  Gilia millefoliata L. H. Myers 1963-5-13 14 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  HSC16991  Gilia millefoliata J. Mustain 1963-4-20 41 Humboldt Big Lagoon Park Comment
  SEINET10464622  Githopsis specularioides Tracy 1913-6-19 TRACY 4207 Humboldt Dinsmore's Ranch; in valley of Van Duzen River opposite Buck Mountain 762 Comment
  HSC90972  Glaux maritima Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  JEPS76828  Glaux maritima L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4806 Humboldt 1.2 mi n Eureka Bridge; Samoa Peninsula Comment
  HSC58544  Glyceria elata Overton, Butler 1979-7-23 9547 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA15558  Gnaphalium chilense var. confertifolium C. B. Wolf 1927-8-29 1223 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  HSC39773  Gnaphalium palustre Peter Sorensen 1976-8-16 Humboldt Humboldt Bay: Woodley Island Comment
  HSC56965  Gnaphalium palustre Overton, Butler 1979-7-23 9488 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UCR48596  Gnaphalium ramosissimum R. D. Goeden, Don W. Ricker 1987-9-2 870902- 8 Humboldt Loleta, along Cannibal Road 8 Comment
  UC13522  Goodyera oblongifolia Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  JEPS4220  Gratiola ebracteata Joseph P. Tracy 1930-5-18 8697 Humboldt Rohnerville 152 Comment
  UC147895  Gratiola ebracteata Joseph P. Tracy 1908-6-7 2618 Humboldt Butler Valley Northern Coast Ranges, , Butler Valley (Mad River) 152 Comment
  HSC38496  Grindelia hirsutula R. Sutherland 1976-10-31 1 .311076 Humboldt Disturbed road edge of county road 290 Comment
  SBBG62707  Grindelia hirsutula L. Rowntree 1931-7-26 Humboldt Carlotta Comment
  UC581776  Grindelia hirsutula Joseph P. Tracy 1931-9-13 9669 Humboldt mouth of Eel River Eel River (along tidal sloughs) Comment
  UC637144  Grindelia hirsutula Edward Lee 1934-8-17 1148 Humboldt e shore Big Lagoon (35 mi n of Eureka); e shore of Big Lagoon 3 Comment
  SEINET193102  Grindelia hirsutula var. davyi Y. W. Winblad 1941-6-24 Humboldt Between Garberville and Hartsook Comment
  SEINET190492  Grindelia stricta var. stricta H. E. Parks 24190 Humboldt Big Lagoon Comment
  HSC97993  Hackelia bella Cara Witte 2007-7-9 461 Humboldt Along Forest Service Road 4N32. 1/4 mile west of intersection with 5N04 1508 Comment
  HSC44542  Hastingsia alba Brad Klipfel 1973-7-15 161 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC306615  Helenium bigelovii Joseph P. Tracy 1937-8-12 15657 Humboldt Snow Camp 1402 Comment
  HSC75258  Helenium bigelovii J. O. Sawyer, M. A. Ericksen 1980-8-18 4052 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  CAS-BOT-BC306616  Helenium bigelovii Doris K. Kildale 1925-7-26 1057 Humboldt Christmas Prairie - Bald Mt. Comment
  SEINET5711017  Helenium bigelovii Lowell E. Urbatsch 1990-1 6798 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the rd. 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 road (FS 7 NO4) travel 1.5 miles to another fork; continue on 7NO4N (the left fork) for 7.4 miles. At this point, take 7N04N, the road 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
  UC582669  Helenium bigelovii Joseph P. Tracy 1930-7-16 8936 Humboldt wet meadow at McKay Camp; South Fork Mountain 1676 Comment
  HSC5778  Helenium puberulum D. E. Anderson 1965-9-5 4091 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  JEPS35523  Helenium puberulum W. L. Jepson 1921-9-10 9458 Humboldt flat at Philipsville Philipsville Comment
  HSC25942  Helminthotheca echioides Thomas W. Nelson 1970-10-31 294 Humboldt Eel River near N end of the Scotia Bluff. Comment
  UC718391  Hemizonella minima C. B. Wolf 1934-9-2 5861 Humboldt e Korbel; Snow Camp 914 Comment
  UC495624  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1928-9-2 8494 Humboldt Dobbyn Creek Northern Coast Ranges Comment
  JEPS82128  Hemizonia congesta subsp. tracyi Rimo Bacigalupi 1959-7-7 7249 Humboldt immediately behind headland of Cape Mendocino (steep grade of coast road, just s of road summit at this point) 30 Comment
  UC175967  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1908-6-8 2629 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC180194  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1906-7-4 2530 Humboldt Hydesville 60 Comment
  UC677739  Hemizonia congesta subsp. tracyi S. K. Harris 1936-6-20 699 Humboldt 1 mi w Bridgeville; Van Duzen River Comment
  UCD132992  Hemizonia congesta subsp. tracyi R. N. Raynor 1935-1 s.n. Humboldt above Fort Seward. 762 Comment
  HSC21511  Heracleum maximum D. B. Bader 1963-4-1 9 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  UC1223123  Hesperevax acaulis var. robustior Joseph P. Tracy 1948-5-31 17983 Humboldt 1/2 mi ne Garberville 152 Comment
  HSC45914  Hesperocyparis macrocarpa Jerome Peterson 1978-4-16 3 Humboldt HSU Campus Comment
  RSA151709  Hesperolinon micranthum Joseph P. Tracy 1908-6-27 2820 Humboldt Northwest slope of Buck Mountain. 915 Comment
  UC169328  Heterocodon rariflorum Joseph P. Tracy 1908-6 2831 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  POM208987  Heterocodon rariflorum Lincoln Constance 1934-6-19 915 Humboldt E slope of Grasshopper Peak, Bull Creek watershed, Humboldt Redwood Park. 762 Comment
  SEINET5782099 Image available Heterotheca oregona S. K. Harris 1938-8-24 Humboldt Eel River, near Fernbridge Comment
  CAS-BOT-BC311058  Heterotheca oregona var. oregona S. K. Harris 1938-8-24 s.n. Humboldt Eel River, near Fernbridge Comment
  UC202750  Heterotheca oregona var. rudis Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  HSC39159  Heuchera micrantha D. E. Anderson, J. P. Smith 1971-6-28 - 1247 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC20195  Heuchera micrantha J. F. Knezevich 1968-5-21 451 Humboldt 15 mi. E of jct. of Hwy. 299 with Hwy. 101, past Blue Lake Comment
  CAS-BOT-BC420723  Heuchera micrantha var. diversifolia L. R. Abrams 1918-6-16 7148 Humboldt Willow Creek Comment
  UC902002  Heuchera micrantha var. diversifolia Joseph P. Tracy 1947-5-10 17682 Humboldt Garberville, near airport Garberville 152 Comment
  HSC98119  Heuchera micrantha var. pacifica Cara Witte 2007-5-23 104 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  CAS-BOT-BC312385  Hieracium albiflorum Kenneth Clark 1980-6-14 687 Humboldt North fork Dead Man's Gulch, Shelter Cove 106 Comment
  HSC5829  Hieracium albiflorum H. E. Parks, J. P. Tracy 1930-9-14 768 Humboldt Bald Hills, near Kneeland Comment
  UC1199469  Hieracium nudicaule Joseph P. Tracy 1929-7-4 8629 Humboldt French Camp Ridge 1066 Comment
  POM160893  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt Around Humboldt Bay, old Kneeland Road 305 Comment
  UC187262  Hierochloe occidentalis Joseph P. Tracy 1911-5-7 3180 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  CHSC23327  Hippuris vulgaris Robert F. Thorne; P. Everett 1965-8-9 35344 Humboldt Along Hwy. 101 about 3 mi. N of Eureka; in shallow water ca. 1 ft. of ditch along roadside. 1 Comment
  RSA0016045  Hippuris vulgaris Robert F. Thorne, P. C. Everett 1965-8-9 35344 Humboldt Along Hwy 101 about 3 miles N of Eureka. 2 Comment
  HSC10127  Holcus lanatus True Hoyle 1967-6-24 25967 Humboldt 20 mi. S of Arcata near Little Salmon Creek on the Marvin Stapp Ranch 46 Comment
  HSC10142  Holcus lanatus R. I. Bonn 1965-5-9 50 Humboldt 4 miles W of Arcata on Lanphere Rd. Comment
  POM232313  Holcus lanatus I. L. Wiggins 1930-6-25 4614 Humboldt Sand dunes 2 miles north of Samoa. Comment
  POM291100  Holcus lanatus Lyman Benson 1929-7-14 1797 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  SEINET200828 Image available Holcus lanatus J. P. Tracy 1914-9-13 4626 Humboldt Eureka 0 Comment
  UC922019  Holcus lanatus Joseph P. Tracy 1949-7-6 18330 Humboldt Eureka 30 Comment
  BLMAR40  Holcus lanatus Brad Barr 1982-6-21 40 Humboldt King range, hidden valley enclosure Comment
  HSC57957  Holodiscus discolor G. L. Clifton, Griswold 1979-7-31 11651 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC74742  Holodiscus discolor Gail Newton 1981-7-24 2295 Humboldt Near Chaparral Mtn. 1512 Comment
  SDSU9080  Holodiscus discolor D. F. Howe 1964-8-10 3950 Humboldt 1.8 miles from Ferndale on road to Petrolia. 305 Comment
  UC1198703  Holodiscus discolor Joseph P. Tracy 1911-7-6 3362 Humboldt along road between Three Creeks and Mouth of Willow Creek, Northern Coast Ranges Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UCR32150  Holodiscus discolor David J. Keil 1983-7-1 17262 Humboldt North Coast Range, Bull Creek Flats Road, c. 8 mi west of junction US 101 Comment
  HSC38770  Hordeum brachyantherum J. D. Ackerman 1975-6-10 463 Humboldt 1 mi. N of Samoa Blvd. and Samoa bridge Rd. intersection. S of Manila. Near Railroad tracks Comment
  HSC74183  Hordeum brachyantherum M. A. Baker 1980-7-22 3108 Humboldt Near Grogan Hole. 1676 Comment
  CAS-BOT-BC284690  Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt Northern Coast Ranges. Around Humboldt Bay. Mouth of Elk River 3 Comment
  HSC10120  Hordeum marinum subsp. gussoneanum True Hoyle 1967-7-9 27967 Humboldt By the cattle guard at the W side of the Roy Fulton Ranch, Iaqua Gun Club, Big Bend of the Mad River above Maple Creek. 610 Comment
  HSC37932  Hordeum murinum subsp. leporinum Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC10231  Hordeum vulgare S. J. Hawks 1965-4-6 23 Humboldt Along Clam Beach access road. Comment
  CAS-BOT-BC536628  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt Foot of low hills south of Fields Landing 6 Comment
  CAS-BOT-BC144081  Horkelia sericata Harley P. Chandler 1901-6-1 1543 Humboldt Klamath RIver 426 Comment
  SEINET11911570  Horkelia sericata H. P. Chandler 1901-1 1543 Humboldt Klamath River 427 Comment
  UC902135  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1949-8-4 18414 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC70253  Horkelia tridentata var. flavescens M. A. Baker 1980-6-8 1920 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC206124  Hosackia crassifolia Alice Eastwood; John Thomas Howell 1937-6-23 4852 Humboldt 5 miles from Kneeland on road to Korbel Comment
  HSC44356  Hosackia crassifolia Brad Klipfel 1974-7-23 464 Humboldt Horse Mtn. Comment
  SD113612  Hosackia crassifolia var. crassifolia Darley F. Howe 1962-5-22 3305 Humboldt 4.3 miles east of Orick on Bald Mountain Road 609 Comment
  HSC58536  Hosackia oblongifolia var. oblongifolia Overton, Butler 1979-7-23 9454 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  JEPS1633  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  JEPS1640  Hydrophyllum tenuipes Milo S. Baker July, 1923 Humboldt Carlotta, probably about [Wilder's] but possibly near Dyerville Carlotta; North Coast trip, Carlotta Comment
  SEINET12347577  Hydrophyllum tenuipes F. H. Utech 1988-5-23 88 -267 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36 50 Comment
  UC1198409  Hypericum anagalloides Joseph P. Tracy 1918-7-5 5005 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  CAS-BOT-BC400794  Hypericum anagalloides Doris K. Kildale 1928-7-29 5933 Humboldt Kinman Pond. Bear River Ridge Comment
  SEINET10720053  Hypericum anagalloides Lincoln Constance 1934-6-25 Constance 922 Humboldt Bull Creek Region. Engelwood, 4 miles N of Dyerville and north of the boundary of Humboldt Redeood Park on Redwood Highway. Comment
  RSA246853  Hypericum calycinum R. F. Thorne, P. C. Everett, K. Thorne 1965-8-9 35315 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC108651  Hypericum concinnum unknown 1148 Humboldt Eel R. 548 Comment
Read comments
Feb 5 2011
  CHSC19478  Hypericum perforatum Thomas W. Nelson 1970-10-18 251 Humboldt Beside highway 101 ca. 100 yds. N. of Mad River bridge. Comment
  HSC73150  Hypericum perforatum M. A. Baker 1980-5-18 1345 Humboldt Near Black Mtn. 792 Comment
  SD51268  Hypericum perforatum Darley F. Howe 1961-8-2 3118 Humboldt 7.7 miles east of Orick on Bald Mountain road. 609 Comment
  HSC95115  Hypericum perforatum Andrea Pickart 2002-7-9 167 Humboldt Bracut Marsh, in a transitional zone between brackish and riparian 9 Comment
  HSC98015  Iliamna latibracteata Cara Witte 2007-7-9 455 Humboldt Grouse Mtn.. FS Rd. 4N32. 1/4 mile S of intersection with 5N04 1466 Comment
  RSA20726  Iliamna latibracteata Carl B. Wolf 1937-9-11 9322 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  UC909042  Ipomopsis aggregata Joseph P. Tracy 1933-7-25 12884 Humboldt Grouse Mtn Northern Coast Ranges 1524 Comment
  HSC82389  Ipomopsis aggregata subsp. aggregata Thomas W. Nelson 1979-7-11 5029 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  HSC13866  Iris douglasiana R. E. Hafenfeld 1965-5-9 3 Humboldt 0.5 mi. S of Fern Canyon Comment
  HSC23734  Iris douglasiana Tim Baroni 1971-7-5 101 Humboldt 8 mi. E of Petrolia Comment
  HSC91876  Iris douglasiana E. Mackey 1986-5-13 Humboldt Patrick's Point State Park near Ceremonial Rock Comment
  POM87943  Iris douglasiana Le Roy Abrams, Rimo C. Bacigalupi 8274 Humboldt Big Lagoon, south of Orick. Comment
  UC1103024  Iris douglasiana Joseph P. Tracy 1931-6-7 9574 Humboldt Eureka 30 Comment
  UC52242  Iris douglasiana J. P. Tracy 1903-8-9 1939 Humboldt immediate vicinity Eureka 0 Comment
  UC1174772  Iris purdyi L. W. Lenz and E. K. Balls 1952-5-11 17191 Humboldt 5.2 mi n Harris (on road to Zenia, 10.1 mi sw from Trinity-Humboldt Co. line) Comment
  CAS-BOT-BC133694  Iris tenax L. W. Lenz 1953-5-17 18317 Humboldt 1 mi. below Somes Bar on Klamath River 179 Comment
  HSC44339  Iris tenuissima Brad W. Klipfel 1975-6-17 683 Humboldt Horse Mtn. Comment
  HSC97581  Iris tenuissima subsp. tenuissima Cara Witte 2007-5-29 131 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  HSC99375  Iris tenuissima subsp. tenuissima K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 24 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  CAS-BOT-BC88652  Isatis tinctoria Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek, near Orleans. Comment
  HSC92109  Isoetes echinospora L. Carufel 1973-8-16 Humboldt Growing in Divide Lake Comment
  UC667943  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold springs Grouse Mt. 1432 Comment
  CHSC84742  Isolepis cernua L. P. Janeway 2003-7-27 7928 Humboldt North Coast. East shore of Big Lagoon, about 0.3 km north of mouth of Tom Creek. 2 Comment
  HSC91621  Isolepis setacea E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  UC1115831  Isopyrum stipitatum Joseph P. Tracy 1939-4-2 16207 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC340155  Jaumea carnosa Doris K. Kildale 1929-6-6 8484 Humboldt Stone Lagoon Comment
  UC1192235  Jaumea carnosa Malcolm A. Nobs and S. Galen Smith 1949-8-3 1173 Humboldt salt marshes around Fields Landing Comment
  UC1199148  Jaumea carnosa J. P. Tracy 1901-8-7 1251 Humboldt salt marsh Samoa (immediate vicinity of Eureka) 0 Comment
  UC1220310  Jaumea carnosa D. E. Anderson 1963-9-15 2812 Humboldt salt marsh bordering Humboldt Bay Comment
  UC303152  Juncus balticus subsp. ater Joseph P. Tracy 1925-8-2 7221 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC13998  Juncus bufonius C. B. Wolf 1927-8-22 780 Humboldt Big Lagoon Comment
  HSC90771  Juncus bufonius Gail Newton 1982-6-10 3602 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC98023  Juncus covillei Cara Witte 2007-7-12 517 Humboldt Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1339 Comment
  UC249747  Juncus covillei var. obtusatus Joseph P. Tracy 1923-6-19 6294 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  HSC75276  Juncus ensifolius J. O. Sawyer, D. A. Thornburgh 1980-9-9 4079 Humboldt Mill Creek Lake and surrounding meadows Comment
  UC1103047  Juncus ensifolius Joseph P. Tracy 1919-9-18 5238 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC1152101  Juncus ensifolius Joseph P. Tracy 1927-8-28 8356 Humboldt near Boynton Prairie Comment
  RSA246805  Juncus ensifolius Robert F. Thorne, Percy C. Everett 1965-8-9 35335 Humboldt Clam Beach County Park. 3 Comment
  HSC57986  Juncus exiguus G. L. Clifton, Terry Griswold 1979-7-31 11721 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC205904  Juncus hesperius Hy Melde 1902-6-23 Humboldt Eureka Comment
  HSC45545  Juncus lescurii J. P. Smith 1971-10-6 4975 Humboldt End of Murray Rd. in McKinleyville. Comment
  BLMAR324  Juncus patens Jennifer Wheeler 2002-8-9 324 Humboldt Lost Coast Headland, Guthrie creek edge along Guthrie creek trail 6 Comment
  UC1152148  Juncus phaeocephalus var. paniculatus Joseph P. Tracy 1938-7-24 16086 Humboldt corner of Pacific and A Streets Eureka Comment
  UC198646  Juncus saximontanus Joseph P. Tracy 1917-9-1 4834 Humboldt Murphy meadow Northern Coast Ranges, Bald Mt. 1066 Comment
  HSC98709  Keckiella lemmonii Cara Witte 2007-7-27 605 Humboldt Forest Service Road 4N32. 1.5 mile N of intersection with Forest Service Road 4N32B. 1585 Comment
  RSA0009768  Keckiella lemmonii Marcus E. Jones 1931-7-16 28828 Humboldt Junction, East of Arcata. Comment
  UC50452  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6189 Humboldt Bear River Ridge Comment
  CAS-BOT-BC499191  Kopsiopsis strobilacea C. Young 1967-5-15 s.n. Humboldt Orleans Comment
  JEPS7507  Kyhosia bolanderi Joseph P. Tracy 1935-7-23 14136 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC577363  Lamium amplexicaule Joseph P. Tracy 1934-7-12 13380 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC1223224  Lapsana communis Joseph P. Tracy 1944-7-3 17482 Humboldt Graham's Peach Orchard, along road near old house, at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC352932  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt Larrabee Creek, near Bosworth's 457 Comment
  UC1222416  Lathyrus jepsonii var. californicus Joseph P. Tracy 1942-7-1 17361 Humboldt opposite Buck Mountain; Van Duzen River 762 Comment
  UC495705  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1927-4-10 7893 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  BLMAR719  Lathyrus littoralis Jennifer Wheeler 2011-5-20 719 Humboldt King range, Mattole Beach Sand Dunes 3 Comment
  CHSC68555  Lathyrus littoralis Vernon H. Oswald 1997-4-29 8359 Humboldt Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  HSC40263  Lathyrus littoralis Linda M. Barker 1976-4-30 1409 Humboldt 3 mi. W of Arcata Comment
  UCD106378  Lathyrus littoralis Linda M. Barker 1976-6-1 1560 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD106379  Lathyrus littoralis Roman Gankin 1965-8-6 552 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  RSA246792  Lathyrus littoralis Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35221 Humboldt Samoa Peninsula. 3 Comment
  RSA60500  Lathyrus odoratus John H. Thomas 1949-6-14 909 Humboldt betw Le Perron Flat and whiteys Peak along the trail. E of town of Orleans Comment
  RSA246790  Lathyrus palustris R. F. Thorne 1965-8-7 351180 Humboldt Big Lagoon, south end. 2 Comment
  HSC76514  Lathyrus sulphureus Denis Kearns 1981-7-23 416 Humboldt Near Whiteys Peak. 1524 Comment
  SBBG3371  Lathyrus torreyi H. and M. Dearing 1933-5-16 Humboldt near Weott Comment
  UC931754  Lathyrus vestitus C. L. Hitchcock 1949-6-7 19082 Humboldt 0.5 mi s Weatt (along Highway 101) Comment
  RSA64054  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1949-6-7 19081 Humboldt Redwood Highway ca 15 miles N of Garberville. Comment
  UC168987  Lathyrus vestitus var. vestitus Joseph P. Tracy 1912-8-3 3971 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CHSC53236  Layia carnosa L. P. Janeway 1984-3-17 717 Humboldt On North Spit of Humboldt Bay, west of Samoa Road near the boat launch ramp. 4 Comment
  UCD133892  Layia carnosa Linda M. Barker 1976-4-13 1377 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCSB22188  Lemna obscura Joseph Keefe 1967-7-8 1862 a Humboldt collected along the E-side of U S Highway 101 turnoff to Crannell Road N of Eureka U S Highway 101, Crannell Road and Eureka 6 Comment
  RSA18016  Leontodon nudicaulis C. B. Wolf 1927-8-22 777 Humboldt Big Lagoon. Comment
  HSC64787  Lepidium densiflorum J. P. Smith, Steve Selva 1970-6-14 3843 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1245362  Lepidium heterophyllum Mrs. Archie Cathey Jul 1933 Humboldt near Miranda (at Cathey Ranch) 304 Comment
  UC1225757  Lepidium latipes Joseph P. Tracy 1948-5-31 18010 Humboldt Alder Point 304 Comment
  CDA3825  Lepidium strictum P. Haggard 1996-7-8 Humboldt Louisiana Pacific Corporation tree nursery, Crannell. Comment
  HSC45831  Leptosiphon androsaceus J. P. Smith, J. O. Sawyer 1973-5-12 6685 Humboldt 3.8 mi. from Redwood Creek on Hoopa road Comment
  HSC96956  Leptosiphon bolanderi Ryoko Ito, Shauna McDonald 2007-6-11 5 Humboldt 14 mi. above 299, on FS Rd. NF1 1372 Comment
  CAS-BOT-BC226713  Leptosiphon latisectus Alice Eastwood; John Thomas Howell 1937-6-23 4764 Humboldt Dinsmore's [Dinsmore] Comment
  UC673120  Leptosiphon latisectus Joseph P. Tracy 1940-5-17 16553 Humboldt Larrabee Valley 731 Comment
  RSA44412  Lessingia nemaclada H. M. Pollard 1948-8-3 s.n. Humboldt Orleans Comment
  UCD134127  Leucanthemum vulgare Lincoln Constance 1934-6-6 827 Humboldt Bull Creek Region, South Fork Eel Rive, Fire Trail, Dyerville to Horse Prairie and return. Comment
  SEINET197649 Image available Lewisia triphylla Joseph P. Tracy 1935-7-24 14178 Humboldt Trinity summit near Ranger Station 1830 Comment
  CAS-BOT-BC283513  Leymus X vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt Cape Mendocino, near ocean shore S of point of the cape 30 Comment
  UC682047  Leymus mollis subsp. mollis G. L. Stebbins Jr. and G. L. Church 1941-5-26 3105 Humboldt s Trinidad; Little River Comment
  CAS-BOT-BC436494  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt North Yager Creek, at crossing of Kneeland to Bridgeville road Comment
  UC1222812  Ligusticum apiifolium Joseph P. Tracy 1950-9-10 19354 Humboldt Bear R. Ridge 609 Comment
  HSC70658  Ligusticum californicum Gail Newton 1980-7-14 1539 Humboldt Near Deadman Ridge 1097 Comment
  SEINET11764870  Lilaea scilloides J. P. Tracy 1950-6-18 18844 Humboldt Davis Creek, Cape Mendocino, S of point of the Cape 30 Comment
  UCD127580  Lilaeopsis occidentalis Malcolm A. Nobs; S. Galen Smith 1949-8-3 1166 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  HSC21522  Lilaeopsis occidentalis D. E. Anderson 1962-7-14 2272 Humboldt W edge of Freshwater Lagoon Comment
  SBBG1025  Lilium columbianum H. and M. Dearing 1939-6-23 3698 Humboldt 5 mi N of Trinidad Comment
  RSA65318  Lilium columbianum Albert M. Vollmer, L. Beane 1951-07 s.n. Humboldt A few miles north of Arcata near U. S. Highway 101 Comment
  UC1035026  Lilium columbianum A. M. Vollmer and L. Beane Jul 1953 121 Humboldt Comment
  UC179932  Lilium columbianum Joseph P. Tracy 1914-9-7 4617 B Humboldt 10 mi e Korbel (near the Bald Mt. House); Northern Coast Ranges 914 Comment
  UC984813  Lilium kelloggii A. M. Vollmer and L. Beane Jun 1951 148 Humboldt e of Korbel (on road to Bald Mountain) Comment
  CAS-BOT-BC130685  Lilium occidentale A. M. Vollmer; L. Beane 1953-7-1 118 Humboldt unspecified Comment
  SEINET3992036  Lilium occidentale Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-1 Humboldt Comment
  CAS-BOT-BC132964  Lilium rubescens Doris K. Kildale 1927-6-24 3538 Humboldt On top of ridge before taking down grade into Shelter Cove Comment
  HSC15582  Lilium rubescens H. E. Parks Jul 1933 1414 Humboldt S Fork Mtn. Comment
  UC1198230  Lilium rubescens Joseph P. Tracy 1914-9-6 4616 Humboldt Bald Mountain Northern Coast Ranges (between High Prairie and Snow Camp) 1066 Comment
  HSC98357  Lilium vollmeri T. Jimerson, J. Pageau 1979-6-22 600 Humboldt Near Bee Mtn., close to the town of Orleans 656 Comment
  RSA12529  Lilium washingtonianum subsp. purpurascens Carl B. Wolf 1934-7-2 5908 Humboldt 7 miles from Bald Mountain on road to Snow Camp (mountains east of Korbel) 1067 Comment
  UC1198229  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1932-7-19 10726 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  JEPS19585  Limnanthes douglasii Joseph P. Tracy 1933-5-20 12246 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  JEPS19592  Limnanthes douglasii Lincoln Constance 1934-5-29 721 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  RSA183591  Limonium californicum D. E. Anderson 1963-9-15 2813 Humboldt Humbolt Bay Comment
  UC902115  Limonium californicum Joseph P. Tracy 1949-9-18 18581 Humboldt Eel River; mouth, area of salt marsh 3 Comment
  SEINET7249786 Image available Limonium californicum C. C. Harris, S. K. Harris 1939-1 973 Humboldt South shore of Humboldt Bay Comment
  JEPS58151  Linanthus androsaceus W. L. Jepson 1902-6-19 1884 Humboldt Harris to Fort Seward Ranch Ridge (= Mail Ridge) 1066 Comment
  UC1198574  Linanthus bicolor Joseph P. Tracy 1937-5-17 15288 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198586  Linanthus ciliatus Joseph P. Tracy 1914-5-14 459 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC213380  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1920-8-13 5349 Humboldt w of Klamath River (between Pine Creek and Tuley Creek, French Camp Ridge); Northern Coast Ranges, French Camp Ridge 914 Comment
  UC902241  Linaria vulgaris Joseph P. Tracy 1941-9-1 16996 Humboldt Blue Lake 30 Comment
  RSA54141  Lindernia dubia var. dubia H. M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC15802  Linum bienne F. B. Plett 1963-4-9 15 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  UC1561309  Linum bienne Barbara Ertter with Thomas J. Delendick 1987-5-16 6911 Humboldt 8 mi e of Arcata (9 1/2 mi w of Lord Ellis Summit, Highway 299 roadside); Highway 299 Comment
  HSC63066  Linum bienne David Wheeler 1979-5-23 135 Humboldt Humboldt State University campus by the Plant Operations yard. Comment
  HSC89417  Linum bienne P. A. Daly 1986-1-20 46 Humboldt Trinidad Head, along trail 61 Comment
  HSC97615  Linum bienne Cara Witte 2007-6-4 192 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC1130237  Linum usitatissimum H. L. Person 1932-7-16 Humboldt Highway n of Trinidad Comment
Read comments
Aug 3 2007
  HSC27569  Listera caurina J. D. Ackerman, A. Montalvo 1973-6-29 71 Humboldt 2 mi. N of Manila Comment
  HSC72684  Listera caurina J. P. Smith 1977-7-3 9266 Humboldt Onion Lake Comment
  UC1222184  Listera caurina Joseph P. Tracy 1951-6-26 19555 Humboldt Snow Camp Comment
  HSC98814  Listera caurina Cara Witte 2008-7-7 843 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  UC302158  Listera convallarioides Joseph P. Tracy 1926-6-27 7690 Humboldt Horse Mountain Northern Coast Ranges 1219 Comment
  UC1196365  Lithocarpus densiflorus Joseph P. Tracy 1948-8-15 18137 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  SFV7744  Lithocarpus densiflorus var. densiflorus T. Gordon, K. Kimbrough 1975-8-22 1226 Humboldt Humboldt Redwoods State Park. 61 Comment
  UC154139  Lithophragma campanulatum Mrs. M. H. Manning May 1902 Humboldt near Hupa; near Hupa Comment
  HSC5650  Logfia gallica J. P. Tracy 1935-5-30 13914 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC61764  Logfia gallica Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan; 1 mi. above Pecwan on old road, S side Comment
  CAS-BOT-BC271059  Lolium temulentum Joseph P. Tracy 1935-5-25 13893 Humboldt Dobbyn Creek 152 Comment
  SEINET3132617  Lomatium dasycarpum D. E. Anderson 1965-5-1 3588 Humboldt dry highway backslope along Hw. 96, 3-4 south of Weitchpec Comment
  UC21254  Lomatium dasycarpum subsp. dasycarpum Harley P. Chandler June, 1901 1445 Humboldt North Coast Ranges, Klamath R. Comment
  UC906634  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1947-7-5 17779 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  UC1463742  Lomatium tracyi Barbara Kelly 1978-5-1 588 Humboldt 1/4 mi from Horse Mountain Road 1/2 mi below turnoff to summit, near end of unused gravel road Comment
  HSC38861  Lomatium utriculatum J. P. Smith, J. O. Sawyer 1973-5-12 6678 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS12869  Lonicera ciliosa Joseph P. Tracy 1921-10-16 5876 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  HSC3955  Lonicera hispidula var. vacillans J. Allen DeCou 1899-6-4 Humboldt Comment
  HSC60071  Lonicera hispidula var. vacillans M. A. Baker 1978-5-20 563 Humboldt W side of the Klamath River along Hwy. 96 Comment
  UC535759  Lonicera hispidula var. vacillans Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  HSC3924  Lonicera involucrata var. ledebourii A. E. Inman 1962-5-25 Humboldt Mad River, Lindsay Creek Jct. Comment
  SDSU2917  Lonicera involucrata var. ledebourii Harvey 1938-8-13 2278 Humboldt North of Arcata. Comment
  UC1125285  Lonicera involucrata var. ledebourii A. E. Wieslander 1931-5-22 215 Humboldt hills s Ferndale; Cape Fortuna Quadrangle Comment
  UC1239556  Lonicera involucrata var. ledebourii Joseph P. Tracy 1923-6-17 6269 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC200914  Lotus Milo S. Baker 1927-8-21 2468 a Humboldt Near Bald Mt. Comment
  HSC48615  Lotus corniculatus Mark Flippo 1978-5-23 68 Humboldt Mckinleyville, Bella Vista Rd. Comment
  UC1223404  Lotus denticulatus Joseph P. Tracy 1934-6-23 13254 Humboldt near Blue Lake; Mad River 15 Comment
  RSA46827  Lotus formosissimus Doris K. Kildale 1926-5-26 1642 Humboldt Old Fortuna Road. Comment
  UC15615  Lotus humistratus Harley P. Chandler Jun 1901 1308 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC97498  Lotus micranthus Cara Witte 2007-5-21 60 Humboldt White Oak Opening. 1257 Comment
  RSA293205  Lotus micranthus J. P. Smith 1973-5-26 6837 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC303190  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6271 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC726367  Lotus purshianus var. purshianus A. A. Heller 1923-7-9 13778 Humboldt 5 mi from Arcata (near Blue Lake) Comment
  UC495719  Lotus tenuis Mrs. C. M. Wilder 1924-6-1 Humboldt w of Bridgeville (at Kemps Maple Grove Ranch); Van Duzen River 152 Comment
  HSC39224  Lotus unifoliolatus var. unifoliolatus D. E. Anderson, J. P. Smith 1971-7-6 - 1319 Humboldt Rock wall near bridge over Supply Creek Comment
  HSC49990  Luina hypoleuca M. A. Baker 1979-6-6 776 Humboldt N facing slope near to road to Hospital Mt. 610 Comment
  UC1223213  Luina hypoleuca Joseph P. Tracy 1947-6-21 17716 Humboldt along Trinity Highway Willow Creek Canyon Comment
  CAS-BOT-BC201191  Lupinus Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC15888  Lupinus adsurgens Chesnut and Drew 1888-7-21 Humboldt South Fork Mt.; ; S of Fort Mt., Humboldt Co. Comment
  HSC98526  Lupinus albicaulis Cara Witte 2007-6-4 182 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  RSA167393  Lupinus albicaulis var. shastensis Joseph P. Tracy 1940-7-14 16687 Humboldt Wilder Ridge Comment
  HSC49997  Lupinus andersonii M. A. Baker 1979-6-7 789 Humboldt W slope of Snow Mtn. 762 Comment
  CAS-BOT-BC196399  Lupinus arboreus R. J. Mastrogiuseppe; J. D. Mastrogiuseppe 1974-9-3 178 Humboldt On sand dunes of Clam Beach Comment
  CHSC19515  Lupinus arboreus Wendell Wood 1970-10-7 307 Humboldt McKinleyville. Clam Beach. 0 Comment
  HSC14777  Lupinus arboreus D. B. Bader 1963-4-1 18 Humboldt Clam Beach Lagoons, W of Hwy. 101. Along the Railroad tracks. Comment
  HSC38340  Lupinus arboreus Peter Sorensen 1976-7-14 Humboldt N Spit Comment
  RSA331967  Lupinus arboreus var. arboreus Dave Kelly, Walter Wisura, A. Kelly 1985-7-28 4065 Humboldt Outer sand dunes near Manilla, Samoa Peninsula near Eureka Comment
  HSC14788  Lupinus bicolor C. E. Fellows 1965-5-19 87 Humboldt 1.6 mi. S of 7th St. on Hwy. 101 at bridge, E side of Hwy., S side of bridge Comment
  HSC14791  Lupinus bicolor J. R. Good 1964-5-13 33 Humboldt N of Coast Guard St., 300 yds., 100 ft. W of Rd. Comment
  JEPS82252  Lupinus formosus var. formosus Roger Raiche 1983-7-19 30539 Humboldt Wilder Ridge Road 1 mi n of its intersection with Kings Peak Road (and the road to Ettersburg); Wilder Ridge Road 548 Comment
  HSC57313  Lupinus latifolius Griswold, Butler 1979-7-10 6326 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC102602  Lupinus latifolius var. viridifolius M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1589 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  SEINET10488741  Lupinus littoralis Joseph W. Congdon 1904-7-23 Congdon s.n. Humboldt peninsula, eureka. Comment
  UC1197271  Lupinus nanus Joseph P. Tracy 1913-6-11 4090 Humboldt near Little Van Duzen Bridge 762 Comment
  UC169007  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1912-7-21 3784 Humboldt Alton; Northern Coast Region 30 Comment
  SEINET12165538  Lupinus propinquus F. H. Utech 1986-1 86 -386 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  HSC14863  Lupinus rivularis J. L. Baker 1965-4-28 29 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  HSC79484  Lupinus rivularis Kenneth Clark 1980-3-1 503 Humboldt Dead Man's Gulch, Shelter Cove 21 Comment
  SBBG13907  Lupinus rivularis H. and M. Dearing 1939-6-23 3694 Humboldt 12 mi E of Arcata Comment
  SEINET10488866  Lupinus rivularis Donald E. Bright 1962-6-10 Bright 270 Humboldt Roadside, 5 mi s of ferndale. Comment
  HSC100503  Luzula Carl C. Marshall May 1886 219 Humboldt Gulch E of Arcata. Comment
  BLMAR289  Luzula comosa Jennifer Anthony-Wheeler 2000-4-18 289 Humboldt King range, growing on rocky ridgeline, outcrop/vista in millcrk forest 402 Comment
  HSC74684  Luzula comosa Gail Newton 1981-8-7 2471 Humboldt Near Board Camp Mtn. 1478 Comment
  RSA15576  Luzula comosa Carl B. Wolf 1927-8-28 1167 Humboldt 9 miles from Willow Creek, on the grade of the road to Blue Lake. Comment
  RSA44509  Luzula comosa var. laxa Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  UC964789  Luzula comosa var. laxa Harold E. Parks and Joseph P. Tracy 1947-6-26 11643 Humboldt McKay Camp, South Fork Mt. 1676 Comment
  HSC58033  Luzula parviflora G. L. Clifton 1979-7-31 11867 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC74203  Luzula parviflora M. A. Baker 1980-7-19 3037 Humboldt Near Bret Hole 1814 Comment
  SD46471  Luzula parviflora E. K. Balls, L. W. Lenz 1956-6-12 21662 Humboldt 4.4 miles southwest from Willow Creek, along US Highway 299 to Arcata. Common in shade on moist to wet seeps. 366 Comment
  UC1103675  Luzula subsessilis Joseph P. Tracy 1900-5-28 819 Humboldt Northern Coast Region, at Eureka 0 Comment
  UC2982  Luzula subsessilis Harley P. Chandler May, 1901 1104 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  CAS-BOT-BC61936  Lycopodium clavatum Mrs. L. B. Kildale 1930-11-1 10755 Humboldt one mile north of Crannell, on trail to Camp 20 Comment
  OBI1071  Lycopodium inundatum Lawrence L. Kiefer 1964-5-20 1436 Humboldt Big Lagoon State Park 23 Comment
  POM87675  Lysichiton americanus Le Roy Abrams, Rimo C. Bacigalupi 8277 Humboldt Big Lagoon. South of Orick. Comment
  UC1222701  Lysichiton americanus Joseph P. Tracy 1950-7-6 18992 Humboldt lower end of Burr Valley Comment
  HSC1797  Lythrum hyssopifolia William J. Ferlatte, B. D. Rogers 1966-8-15 3132 Humboldt North Bank Rd., 2 mi. N of Arcata Comment
  UC129392  Madia elegans Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5681 Humboldt Hoops Mt. Hoopa Mt. Comment
  RSA44409  Madia elegans subsp. elegans H. M. Pollard 1948-7-24 s.n. Humboldt Near Orleans Comment
  UC166102  Madia exigua J. P. Tracy 1901-6-30 1208 Humboldt immediate vicinity Eureka 0 Comment
  HSC50342  Madia gracilis Overton, Butler 1979-7-24 9692 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC582407  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  UC175981  Madia gracilis Joseph P. Tracy 1908-6 2796 Humboldt Valley of Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  RSA792307  Madia madioides Rebecca Wenk, P. Hopkinson, M. Hammond, S. Spiegal 2008-6-6 835 Humboldt Humboldt Redwoods State Park. Look Prarie, 0.5 air miles north of Mattole Road, about 3 air miles west of Highway 101. 244 Comment
  HSC15596  Maianthemum dilatatum W. R. Brigham 1962-5-19 6 Humboldt S of Big Lagoon. Comment
  UC1134631  Maianthemum dilatatum R. Stahelin 1933-5-17 Humboldt Arcata City Park Eureka Quad., Arcata City Park Comment
  UC212989  Maianthemum dilatatum Joseph P. Tracy 1920-4-25 5316 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC508513  Maianthemum dilatatum Ira L. Wiggins 1957-6-19 14131 Humboldt Trinidad Comment
  HSC45619  Maianthemum racemosum subsp. amplexicaule Diane L. Reed 1978-4-22 36 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC58176  Maianthemum racemosum subsp. amplexicaule G. L. Clifton, Griswold 1979-8-2 12258 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC98721  Maianthemum racemosum subsp. amplexicaule Cara Witte 2008-7-11 874 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  CAS-BOT-BC511454  Maianthemum racemosum subsp. amplexicaule Doris K. Kildale 1926-3-26 1640 Humboldt Old Fortuna road 609 Comment
  HSC98156  Maianthemum stellatum W. D. Stevens 1964-5-16 9 Humboldt 1.0 mi. N of Kneeland School Comment
  HSC35694  Malacothrix floccifera Thomas W. Nelson, B. Reinhardt 1975-7-30 2101 Humboldt Along road out Whiting Ridge Comment
  HSC6006  Malacothrix floccifera Paul Shields Aug 1955 Humboldt 7 mi. S of Myers Flat Comment
  JEPS36629  Malacothrix floccifera Lincoln Constance 1934-6-22 777 Humboldt Bull Creek road to mouth of Bull Creek (and up Bull Creek); South Fork Eel River, Bull Creek Region Comment
  UC34160  Malacothrix floccifera Hy-Am Pum 1888-7-23 Humboldt Comment
  HSC18694  Malus fusca L. J. Coombes 1964-5-16 30 Humboldt Camp Bowers, 3 mi. SE of Blue Lake 305 Comment
  UCD113220  Malus fusca H. E. Parks 1933-4-1 4352 Humboldt Spruce Cove, Trinidad. Comment
  SEINET12011533  Marah fabacea E. A. York 1990-1-10 2661 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC73934  Marah oregana Gail Newton 1980-6-28 683 Humboldt Near Mad River Butte. 1536 Comment
  HSC7035  Marah oregana D. E. Anderson 1962-3-31 1952 Humboldt Coastal area of Prairie Creek State Park Comment
  RSA144006  Marah oregana P. H. Raven, Richard Snow 1958-7-21 13650 Humboldt 2.9 miles south of Ferndale on road to Cape Mendocino Comment
  UC673067  Medicago polymorpha Joseph P. Tracy 1936-6-8 14869 Humboldt Trinidad Bluffs Trinidad 3 Comment
  RSA10132  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  UC552700  Melica californica Joseph P. Tracy 1935-5-25 13888 Humboldt Dobbyn Creek; Northern Coast Ranges 152 Comment
  UCD87157  Melica californica A. H. Murphy 1951-6-12 57 Humboldt Fleming range plant count area on Ft. Seward ranch, south fork of the Eel River Drain. Comment
  CAS-BOT-BC281325  Melica harfordii W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  CAS-BOT-BC281326  Melica harfordii Harley P. Chandler 1901-6-1 1477 Humboldt North Coast Ranges. Klamath River 365 Comment
  HSC101165  Melica harfordii Dana York, Kim Hayler 2012-5-18 3105 Humboldt Six Rivers National Forest, near Somes Bar, 585 meters SE of the confluence of the Klamath and Salmon Rivers, E and above Hwy. 96. 213 Comment
  UC184916  Melica harfordii Joseph P. Tracy 1912-7-26 3852 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  CAS-BOT-BC262471  Melica subulata Joseph P. Tracy 1933-7-26 12910 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  UC184151  Melica subulata Joseph P. Tracy 1912-7-27 3883 Humboldt Kneeland Prairie; North Coast Ranges 762 Comment
  UC526922  Melica subulata Joseph P. Tracy Jul 16 1930-Jul 19 1930 8913 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC552707  Melica subulata Joseph P. Tracy 1935-4-14 13778 Humboldt Miranda; along South Fork of Eel River 121 Comment
  UC154012  Mentha canadensis J. P. Tracy 1905-9-3 2391 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC12369  Mentha canadensis C. E. Fellows 1970-10-27 376 Humboldt Banks of Mad River 1/8 mi. W of Lindsey Creek Comment
  RSA43834  Mentha canadensis H. M. Pollard 1947-8-28 s.n. Humboldt Near old placer mine, north of Forest Service Station, Orleans. Comment
  HSC90755  Mentha pulegium Gail Newton 1983-8-21 3856 Humboldt Elk River Wildlife Area, Eureka. Comment
  SD148130  Mentha pulegium G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6987 Humboldt Ca-36, along the Van Duzen R. 19.6 miles east of U. S. 101. 136 Comment
  UC535736  Mentha pulegium Eleanor Armstrong 1156 Humboldt Richardson Grove Comment
  UCSB29334  Mentha pulegium Hook, J. 1972-7-3 Humboldt On Hwy 101, E. side of road, 23.5 miles S. of Van Dusen River 45 Comment
  HSC15863  Mentzelia dispersa W. K. Parks Jul 1933 1420 Humboldt On Buck Mtn. Comment
  JEPS80897  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1571 C Humboldt Prairie Creek area, Mile 125.00, US Hwy 101 Prairie Creek area; , Mile 125.00, US Hwy 101 Comment
Read comments
Jul 9 2015
  UC88381  Micropus californicus var. californicus W. W. Price 1890-6-30 Humboldt Mad River Comment
  CAS-BOT-BC322622  Microseris Joseph P. Tracy 1936-6-28 15027 Humboldt Lake Prairie, Baldt Mountain 1066 Comment
  CAS-BOT-BC348709  Microseris bigelovii Dr. A. Kellogg; W. G. W. Harford 1868-1-1 579 Humboldt Buck Mt. Lower N.W. slopes 792 Comment
  UC176457  Microseris laciniata subsp. laciniata Joseph P. Tracy 1912-7-21 3770 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC349237  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  CHSC62187  Microseris nutans K. L. Chambers 1990-6-23 5515 Humboldt Horse Mtn., off Titlow Hill Rd., s. of Hwy. 299, e. of Arcata. On slope below the parking lot for the winter spots area. 1493 Comment
  POM228349  Mimulus aurantiacus var. aurantiacus C. C. Harris, S. K. Harris 1936-6-9 s.n. Humboldt Carlotta. 61 Comment
  HSC99424  Mimulus breweri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-1 73 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
  UC446437  Mimulus cardinalis Mrs. M. H. Manning 1901-7-29 321 Humboldt Trinity River Hupa Valley Comment
  UC1011930  Mimulus grandis F. W. Pennell and J. P. Tracy 1940-7-8 26107 Humboldt e Eureka; Freshwater 9 Comment
  HSC102176  Mimulus guttatus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1089 Humboldt Patterson Meadows 1555 Comment
  HSC20748  Mimulus guttatus W. A. Heaton 1965-5-17 7 Humboldt 0.5 mi. N of Trinidad St. Park near beach Comment
  HSC45271  Mimulus guttatus M. Alcasas 1978-6-3 116 Humboldt On Titlow Hill Rd., 1.3 mi. from Hwy. 299 1463 Comment
  JEPS27379  Mimulus inodorus H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout (s of USGS Signal Rock); South Fork Mountain Comment
  HSC103093  Mimulus kelloggii Sydney Carothers 2014-6-10 9 Humboldt Six Rivers National Forest, Lassics Botanical Area. Along trail to Mt. Lassic approaching Peak 1. 1707 Comment
  UC582596  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15570 Humboldt halfway between Cold Springs and Blake Lookout; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC12793  Mimulus pilosus Jana Kattenhorn 1970-10-28 149 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  JEPS10599  Mimulus pilosus Joseph P. Tracy 1925-11-1 7300 Humboldt Shively 60 Comment
  UC147905  Mimulus pulsiferae Joseph P. Tracy 1908-6 2698 Humboldt opposite Buck Mountain (along stream); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET6904196  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC249670  Minuartia cismontana Joseph P. Tracy 1922-4-30 5991 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  POM208986  Minuartia douglasii Lincoln Constance 1934-5-29 732 Humboldt Lookout Point, Look Prairie; Bull Creek watershed; Humboldt Redwood Park. 381 Comment
  UC1198864  Mitella ovalis Joseph P. Tracy 1906-5-6 2439 Humboldt near Hydesville; Northern Coast Region, Wolverton Gulch 60 Comment
  HSC49620  Mitella ovalis R. York 1979-4-9 212 Humboldt Behind HSU campus Comment
  HSC4066  Moehringia macrophylla Elrid H. Spinas 1948-5-15 1 Humboldt Horse Mtn. Comment
  HSC58069  Monardella odoratissima subsp. pallida G. L. Clifton, Griswold 1979-8-1 11953 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  JEPS63387  Monardella purpurea Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  CAS-BOT-BC220217  Monardella sheltonii Alice Eastwood; John Thomas Howell 1937-6-22 4744 Humboldt Near Blocksburg Comment
  LA62437  Monardella villosa Carl Epling; William Robison 1935-7-24 sn Humboldt Dyerville Comment
  UC1225847  Monardella villosa subsp. villosa Joseph P. Tracy 1946-7-21 17619 Humboldt Blue Slide Van Duzen River 91 Comment
  RSA257008  Moneses uniflora Gary D. Wallace, S. Carlquist, G. Ansley Wallace 1972-6-30 1103 Humboldt Prairie Creek Redwoods St. Pk. near park Hq. Comment
  RSA255779  Monotropa uniflora Gary D. Wallace 1973-7-11 1251 Humboldt Eastern part of Prairie C reek Redwoods St. Pk. 427 Comment
  SEINET3000074 Image available Montia chamissoi Joseph P. Tracy 1932-7-10 10378 Humboldt Trinity Summit, open places at Corral Prairie Comment
  CAS-BOT-BC444802  Montia diffusa Don Hagar 1957-5-21 59 Humboldt Brush Mountain, 3.5 miles southwest of Willow Creek 853 Comment
  JEPS43291  Montia parvifolia W. L. Jepson 1902-6-30 1961 Humboldt from Ukiah to the Hupa Indian Reservation (Redwood Creek); Redwood Creek Comment
  SEINET200834 Image available Muhlenbergia filiformis Doris Kildale Humboldt Trinity Summit. 1524 Comment
  JEPS70790  Myosotis discolor W. L. Jepson 1936-8-17 17917 Humboldt 2 mi. s. Fields Landing Comment
  SEINET5624090 Image available Myosotis versicolor Joseph P. Tracy 1942-1 17116 Humboldt Englewood Prairie Comment
  RSA174003  Myrica californica Robert F. Thorne 1957-9-3 19020 Humboldt Patrick s Point State Park. Comment
  SEINET6671232 Image available Myrica californica W. C. Muenscher, M. W. Muencher 1939-1 15081 Humboldt Near Creck Comment
  UC205635  Myriophyllum sibiricum Joseph P. Tracy 1920-8-29 5395 Humboldt In pond near mouth of Little River. Comment
  SEINET200374  Navarretia divaricata var. vividior Joseph P. Tracy 1908-7-27 2721 Humboldt Valley of Van Duzen River, opposite Buck Mountain 305 Comment
  UC133638  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1906-7-4 2523 Humboldt near Hydesville (near mouth of Yager Creek); Northern Coast Region, Yager Creek 60 Comment
  UC198634  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UCD48697  Navarretia squarrosa H. E. Parks; S. T. Parks 1947-9-1 24442 Humboldt Trinidad, Spruce Cove, Humboldt County. 76 Comment
  JEPS70471  Navarretia squarrosa Joseph P. Tracy 1921-7-23 5857 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  UC1239736  Nemophila menziesii Joseph P. Tracy 1935-5-26 13910 Humboldt Lone Star Creek , Lone Star Creek (Iaqua Region) 609 Comment
  UC1103815  Nemophila menziesii var. atomaria Joseph P. Tracy 1926-5-15 7481 Humboldt Kneeland Prairie 762 Comment
  UC24262  Nemophila menziesii var. atomaria Joseph Burtt Davy and Walter C. Blasdale 1899-5 5739 Humboldt Hoopa Valley North-Western California, Hoopa Valley Comment
  UC562586  Nemophila menziesii var. atomaria Joseph P. Tracy 1927-4-17 7903 Humboldt 274 Comment
  HSC76196  Nemophila parviflora Overton, Butler 1979-7-24 9799 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  JEPS2987  Nemophila parviflora Lincoln Constance 1934-5-23 606 Humboldt se slope of mt. above Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, above Look Prairie 365 Comment
  UC562592  Nemophila pedunculata Joseph P. Tracy 1927-4-10 7891 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  UC1239687  Nepeta cataria Joseph P. Tracy 1930-8-17 9155 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC73584  Nicotiana quadrivalvis var. quadrivalvis J. Burtt Davy and Blasdale Jun 20 1899-Jan 1 1900 5709 Humboldt Hoopa Valley; North Coast Ranges Comment
  CAS-BOT-BC60564  Noccaea fendleri subsp. glauca Lincoln Constance; Reed C. Rollins 1942-5-12 2887 Humboldt Klamath-Siskiyou Region. Klamath River 7 miles northeast of Weitchpec. 121 Comment
  HSC54573  Notholithocarpus densiflorus Overton, Butler 1979-7-24 9607 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC8077  Notholithocarpus densiflorus F. Sandborg, J. Sandborg 1968-7-19 58 Humboldt Bluff Creek near Notice Creek 793 Comment
  UCSB30602  Notholithocarpus densiflorus Edwards, David 1974-7-26 Humboldt On E. bank of Mad River, ca. at its junction with Puter Creek, ca. 2 mi. SW of Korbel 27 Comment
  SD42287  Notholithocarpus densiflorus var. echinoides Carl B. Wolf 1937-8-13 9239 Humboldt 8 miles east of Hoopa Valley on new road towards trinity summit 1219 Comment
  HSC62976  Nuphar polysepala David Wheeler 1979-5-18 117 Humboldt Fieldbrook Elementary School, behind the baseball field Comment
  UCD127762  Oenanthe sarmentosa C. S. Myszka 1921-4-1 s.n. Humboldt County unknown: location unknown. Comment
  POM224765  Oenothera glazioviana P. A. Munz 1936-8-13 14384 Humboldt 7 miles east of Arcata. Comment
  HSC92702  Oenothera wolfii D. K. Imper 1986-9-1 Humboldt 1 mi. S of Clam Beach exit, Hwy. 101, 6 mi. S of Trinidad 12 Comment
  UCD106955  Oenothera wolfii D. Wiesendanger; F. Randall 1926-8-1 1544 Humboldt Near Arcata. Comment
  HSC5070  Oreostemma alpigenum var. andersonii J. P. Tracy 1919-9-22 5278 Humboldt Trinity Summit 1890 Comment
  UC1197451  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1922-4-30 6001 Humboldt Trinity River Valley, near Willow Creek. Comment
  UC35308  Orobanche uniflora subsp. occidentalis W. C. Blasdale 1896-6-8 Humboldt Graham's. Comment
  HSC73605  Orthocarpus cuspidatus subsp. copelandii M. A. Baker 1980-7-22 3096 Humboldt Near Grogan Hole. 1676 Comment
  HSC56063  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11707 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  POM225846  Orthocarpus lithospermoides M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  HSC55634  Osmorhiza berteroi Overton, Butler 1979-7-24 9649 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC76202  Osmorhiza berteroi Overton, Butler 1979-8-2 12517 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC75448  Osmorhiza occidentalis J. O. Sawyer 1980-7-18 3582 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC33182  Osmorhiza purpurea Thomas W. Nelson 1974-4-20 1185 Humboldt Near Elk Head N of Trinidad Comment
  POM278933  Oxalis oregana Lyman Benson 1927-7-12 225 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  HSC48829  Oxalis trilliifolia Brad Klipfel 1973-7-31 254 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55133  Oxalis trilliifolia G. L. Clifton, Griswold 1979-8-1 11967 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC64217  Oxalis trilliifolia J. O. Sawyer, M. A. Ericksen 1979-6-23 3384 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  JEPS100404 Image available Packera bolanderi var. bolanderi Dean W. Taylor 2007-7-12 20163 Humboldt Pig Toe, approximately where the Humboldt Base Line intersects the Fruit Ranch road 777 Comment
  UC1254537  Panicum acuminatum var. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt 5 mi s Garberville (bank of South Fork Eel River at Hwy 101); bank of S Fk Eel River Comment
  UC196969  Panicum acuminatum var. acuminatum Joseph P. Tracy 1915-6-6 4644 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  UC1103480  Parapholis incurva Joseph P. Tracy 1936-6-6 14860 Humboldt Eureka; Eureka, on bay shore 3 Comment
  HSC82966  Parapholis strigosa A. L. Eicher 1985-6-19 Humboldt Mouth of Mad River Slough, Humboldt Bay. 1 Comment
  HSC22030  Paxistima myrsinites R. W. Spjut 1971-5-22 1922 Humboldt 1/4 mi. NW of Johnson Prairie, 8 mi. W of Willow Creek 1067 Comment
  UC1222163  Paxistima myrsinites Joseph P. Tracy 1950-6-15 18822 Humboldt 7 mi. n. Harris (at Huestis Rock, n.e. side of Mail Ridge); Mail Ridge Comment
  UC1000449  Pedicularis densiflora Joseph P. Tracy 1942-5-16 17351 Humboldt Garberville 304 Comment
  HSC44545  Penstemon anguineus Brad Klipfel 1973-7-15 164 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA425609  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  RSA21441  Penstemon anguineus Carl B. Wolf 1937-8-12 9205 Humboldt North Coast Range, South Fork Mt., Trinity Co line. 1585 Comment
  UC1245389  Penstemon anguineus Joseph T. Gregory 1933-7-16 449 Humboldt nr MacKay Camp (edge of swamp); nr MacKay Camp 1737 Comment
  NY601689  Penstemon heterophyllus var. heterophyllus J. P. Tracy 1933-6-25 12616 Humboldt Camp Grant, along Eel River, 2 to 5 miles east of the South Fork 45.7 Comment
  UC673098  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16544 Humboldt Garberville Garberville (on river bar) 152 Comment
  UC585633  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15513 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  HSC100914  Penstemon menziesii Carl C. Marshall Jun 1886 305 Humboldt Trail E of Hoopa. Comment
  HSC56115  Penstemon newberryi subsp. berryi Gilbert Muth 1979-8-1 11886 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC168978  Penstemon newberryi var. berryi Joseph Burtt Davy and Walter C. Blasdale Jun 21-23 1899 5860 Humboldt Trinity Summit North Coast Ranges Comment
  CDA41849  Penstemon parvulus Peter Haggard 1993-7-22 PDR# 1061613 Humboldt Bair Road southwest of Hoopa. 0 Comment
  HSC1079  Pentagramma triangularis Jack Rockwell 1962-4-29 42 Humboldt S Bank of Van Duzen River, E of Hwy. 101 9 Comment
  CAS-BOT-BC71615  Pentagramma triangularis subsp. triangularis Henry M. Pollard 1946-9-7 s.n. Humboldt Woodson Mine, Orleans Mt. Comment
  HSC102106  Perideridia oregana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1009 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC6055  Petasites frigidus var. palmatus R. D. Modafferi 1965-4-8 35 Humboldt 1.3 mi. N of Trinidad on Trinity Street 305 Comment
  UC1223042  Petasites frigidus var. palmatus Joseph P. Tracy 1947-2-23 17670 Humboldt near Grizzly Creek; Van Duzen River 91 Comment
  HSC63487  Petrorhagia dubia M. A. Baker 1977-6-6 381 Humboldt Hoopa Indian Reservation Comment
  UC1199101  Phacelia Joseph P. Tracy 1948-5-31 18022 Humboldt Blocksburg 518 Comment
  OBI77760  Phacelia bolanderi Rimo Bacigalupi, G. T. Robbins 1954-6-28 4657 Humboldt Trinity River, 2 mi N of Hoopa, Hoopa Valley Indian reservation 91 Comment
  HSC65624  Phacelia californica J. P. Smith 1973-5-26 6871 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC24323  Phacelia ciliata var. ciliata J. P. Tracy 1899-4-4 Humboldt Eureka Comment
  HSC30745  Phacelia corymbosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5621 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC1222897  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1951-6-24 19539 Humboldt between serpentine rockpile and Ashfield Butte; Kneeland Prairie 762 Comment
  HSC75548  Phacelia mutabilis J. O. Sawyer 1977-7-3 3014 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC562557  Phacelia mutabilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8937 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  SEINET200961 Image available Phalaris angusta J. P. Tracy 1935-5-25 13856 Humboldt Fort Seward 107 Comment
  UC1152047  Phalaris californica Joseph P. Tracy 1951-7-27 19630 Humboldt near Redcrest Englewood Comment
  HSC35714  Philadelphus californicus Thomas W. Nelson 1975-10-12 2235 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC56132  Philadelphus californicus G. L. Clifton, Griswold 1979-8-1 11949 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC76569  Philadelphus lewisii L. R. Abrams 1916-7-11 6006 Humboldt Between Blocksberg and Bridgeville Comment
  UC161489  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3318 Humboldt Willow Creek Northern Coast Ranges (near its mouth, creek is tributary of Trinity River) 304 Comment
  HSC20255  Philadelphus lewisii H. D. Sumner 1959-7-13 Humboldt Dirt road to Hoopa 305 Comment
  SEINET12219858  Philadelphus lewisii subsp. californicus L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  SEINET200857  Philadelphus lewisii subsp. gordonianus Joseph P. Tracy 1937-6-20 15355 Humboldt Bear River, ten miles upstream from the mouth. 152 Comment
Read comments
Oct 8 2018
  HSC71667  Phlox adsurgens Gail Newton 1980-6-24 554 Humboldt Near Ladder Rock 1500 Comment
  UC1347189  Phlox adsurgens Alice Eastwood and John Thomas Howell 1937-6-24 4869 Humboldt 5 mi e Berry; Summit Comment
  HSC74351  Phoenicaulis cheiranthoides Gail Newton 1980-6-28 741 Humboldt Near Mad River Butte. 1536 Comment
  CAS-BOT-BC452021  Phyllospadix torreyi W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  POM161067  Phyllospadix torreyi H. E. Parks 1924-8-7 s.n. Humboldt Trinidad. Comment
  CAS-BOT-BC140584  Physocarpus capitatus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC31559  Physocarpus capitatus Glenn McGourty 1974-6-1 76 Humboldt Comment
  UC1198698  Physocarpus capitatus Joseph P. Tracy 1912-7-4 3721 Humboldt near Hydesville 60 Comment
  CAS-BOT-BC73446  Picea sitchensis Carl B. Wolf 1930-10-28 1037 Humboldt 5 miles south of Ferndale on road to Petrolia. 152 Comment
  CAS-BOT-BC73289  Pinus contorta L. R. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad. Comment
  HSC1478  Pinus contorta L. H. Myers 1963-5-13 21 Humboldt Dunes W of Lanpheres Rd., Mad River Slough area. Comment
  HSC1487  Pinus contorta J. W. Johnson 1962-4-29 1294 Humboldt Ridge 8, Lanphere Farm, Samoa Peninsula Comment
  UC400255  Pinus contorta subsp. contorta P. E. Goddard 1901-8-1 Humboldt North Humboldt Bay Comment
  UC665726  Pinus contorta subsp. contorta H. E. and S. T. Parks 1938-3-1 24125 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  UC502909  Pinus lambertiana Joseph P. Tracy 8961 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC502915  Pinus monticola Joseph P. Tracy 1927-6-12 8134 Humboldt Horse Mountain Northn Coast Ranges, Horse Mountain (in open forest of Jeffrey Pine) 1524 Comment
  HSC37260  Pinus muricata Gary S. Lester 1976-1-3 580 Humboldt Seaward slope of Trinidad Head 91 Comment
  CAS-BOT-BC79026  Pinus ponderosa L. B. Kildale 1930-8-3 10354 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  HSC34541  Pityopus californicus Rudolf W. Becking 1971-9-24 Humboldt HSC School Forest Freshwater. Bulk Collection 21 Comment
  UC54754  Plagiobothrys nothofulvus Harley P. Chandler May, 1901 1083 Humboldt Harris North Coast Ranges 609 Comment
  POM126241  Plagiobothrys reticulatus 1907-6-20 2568 Humboldt Eureka 0 Comment
  SBBG28861  Plagiobothrys reticulatus H. E. Parks -Jul-1937 24042 Humboldt Spruce Cove, Trinidad 64 Comment
  UC582613  Plagiobothrys reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt ten mi up stream from the mouth Bear River 152 Comment
  JEPS60991  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1933-5-20 12244 Humboldt near Petrolia; Northern Coast Ranges, Mattole Valley 30 Comment
  JEPS61000  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-6-2 13923 Humboldt Big Lagoon 3 Comment
  SEINET12275868  Plagiobothrys scouleri J. P. Tracy 1949-1 18322 Humboldt Cameron Hill on Kneeland Road Comment
  UC1239615  Plagiobothrys tenellus Joseph P. Tracy 1933-5-18 12190 Humboldt near Blue Lake (on gravel bar); Northern Coast Region, Mad River 15 Comment
  JEPS68131  Plagiobothrys tenellus Joseph P. Tracy 1932-5-17 10070 Humboldt Redwood Creek, at Berry's Northern Coast Ranges 274 Comment
  UC604631  Plantago elongata Joseph P. Tracy 1938-7-15 16074 Humboldt Mouth of Eel River 3 Comment
  JEPS14281  Plantago erecta Joseph P. Tracy 1946-6-2 17553 Humboldt near Samoa; Humboldt Bay 6 Comment
  UC585986  Plantago erecta Joseph P. Tracy 1932-5-10 9930 Humboldt Bear River Bridge Northern Coast Ranges 609 Comment
  UCD124475  Plantago erecta Peter H. Raven 1963-5-15 18371 Humboldt Lanphere Ranch just west of Mad River Slough, near Arcata. Comment
  RSA15562  Plantago maritima Carl B. Wolf 1927-8-29 1210 Humboldt Devils' Gate, S of Cape Mendocino Comment
  HSC16858  Plantago maritima D. E. Anderson 1961-9-13 1818 Humboldt Comment
  HSC26448  Plantago maritima T. O. Osborne 1970-5-17 4 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  UC154021  Plantago subnuda J. P. Tracy 1906-6-17 2493 Humboldt immediate vicinity Eureka 0 Comment
  UC585992  Plantago subnuda Joseph P. Tracy 1927-6-26 8220 Humboldt Stone Lagoon 9 Comment
  HSC55140  Platanthera sparsiflora G. L. Clifton, Griswold 1979-8-1 12021 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  RSA178584  Platanthera sparsiflora Joseph P. Tracy 1950-7-2 18964 Humboldt Happy Camp Mountain (in Trinity Summit Range, 6 miles NE of Hawkins Bar.) Wet place at Fern Spring 1280 Comment
  HSC16795  Platystemon californicus R. J. Vernimen 1963-5-11 53 Humboldt 1/2 mi. off the Samoa Rd., behind the Georgia Pacific dump, 7 1/2 mi. SW of Arcata Comment
  HSC16803  Platystemon californicus J. Wendell Howe 1934-6-27 1291 Humboldt Samoa Comment
  UC146095  Platystemon californicus Joseph P. Tracy 1908-6-9 2656 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC502932  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Valley of South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  CAS-BOT-BC91635  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Northern Coast Region.. Valley of South Yager Creek. 762 Comment
  HSC16801  Platystemon californicus Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  UC162915  Platystemon californicus Joseph P. Tracy 1911-5-27 3192 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  JEPS5131  Plectritis brachystemon Lincoln Constance 1934-6-3 802 Humboldt 1 mi n of Dyerville (Road from High Rock (on Redwood Highway) to Horse Prairie, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  HSC33743  Plectritis congesta A. Montalvo 1975-5-24 279 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC416757  Plectritis congesta Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  SEINET14400441  Plectritis congesta Unknown 1938-6-11 719 d Humboldt Humboldt County Comment
  HSC92237  Plectritis congesta subsp. brachystemon John Cromwell, Julie Schneider, A. Thoele 1994-3-19 6 Humboldt Hell's Half Acre, trailhead located 12 mi. S on S Fork Rd. off Hwy. 299 457 Comment
  UC1152046  Pleuropogon refractus Joseph P. Tracy 1951-6-26 19560 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UCD90102  Pleuropogon refractus Harley P. Chandler 1901-5-1 1107 Humboldt Humboldt Bay. 15 Comment
  HSC10618  Poa annua R. H. Berg 1963-3-1 5 Humboldt Arcata, Fickle Hill area. Comment
  HSC10626  Poa annua William J. Ferlatte 1963-5-8 39 Humboldt Near 11th and B Sts., Arcata. Comment
  HSC10638  Poa bolanderi J. P. Tracy 1932-7-12 10464 Humboldt Trinity Summit, head of Brett Hole. 1829 Comment
  HSC10679  Poa confinis L. M. Malloy 1965-4-23 46 Humboldt Samoa, sand dunes 1/4 mi. NW of the corner of Thunder Rd. and The Hard Way. Comment
  UCD91030  Poa douglasii subsp. douglasii Linda M. Barker 1976-5-13 1491 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC34125  Poa howellii Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5516 Humboldt near Pepperwood Pepperwood Comment
  UC576260  Poa howellii H. S. Yates 1936-6-16 5683 Humboldt near Bayside; Eureka Quadrangle 9 Comment
  RSA603828  Poa macrantha D. D. Keck, Jens Clausen 1935-6-16 3382 Humboldt Mouth of Little River. Comment
  HSC10749  Poa pratensis J. R. Eichelberger 1964-5-13 86 Humboldt S end of Mad River Bridge on Hwy. 101 Comment
  UC184172  Poa pratensis subsp. pratensis Joseph P. Tracy 1905-6-4 2186 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC10379  Poa pringlei D. E. Anderson 1965-6-1 3765 Humboldt Horse Mountain. 1220 Comment
  SEINET200627 Image available Poa scabrella Joseph P. Tracy 1912-7-31 395 Humboldt Buck Mountain,near the summit Comment
  UCD91730  Poa secunda subsp. secunda A. H. Murphy 1947-4-2 s.n. Humboldt 2 miles S of Blocksburg. Comment
  RSA10121  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad 61 Comment
  JEPS62463  Pogogyne serpylloides Joseph P. Tracy 1921-6-12 5829 Humboldt Butler Valley 152 Comment
  RSA141275  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 30 Comment
  HSC17227  Polygala californica B. D. Rogers, William J. Ferlatte 1966-6-15 2094 Humboldt Near Bridgeville Comment
  HSC17220  Polygala californica R. Spellenberg 1964-6-16 435 Humboldt 0.25 mi. W of Hwy. 299 bridge over S Fork of Trinity River Comment
  UC902121  Polygala cornuta var. cornuta Joseph P. Tracy 1946-7-28 17622 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC672977  Polygonum amphibium Joseph P. Tracy 1927-5-14 8026 Humboldt Patterson Ranch Trinity River Valley, Willow Creek (in pond) 152 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
  UC1198092  Polygonum californicum Joseph P. Tracy 1929-8-18 8657 Humboldt opposite Buck Mountain; Van Duzen River, Dinsmore's 762 Comment
  HSC55062  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11624 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC109183  Polygonum paronychia Greg de Nevers 2001-4-18 12252 Humboldt Lanphere-Christenson dunes, near Arcata. 9 Comment
  RSA332472  Polygonum paronychia J. P. Smith 1971-10-6 4957 Humboldt Dunes at the end of Murray road in McKinleyville Comment
Read comments
Feb 21 2012
  UC902112  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1949-8-11 18480 Humboldt 2-6 mi s Grouse Mt.; Kinsey Ridge 1402 Comment
  UC162921  Polygonum punctatum Joseph P. Tracy 1911-7-8 3473 Humboldt Clover Flat mine Northern Coast Ranges, Valley of Trinity River (along streamlet, near mouth of Willow Creek) 152 Comment
  UC1225798  Polygonum sachalinense Joseph P. Tracy 1946-8-25 17634 Humboldt roadside 1/2 mi s mouth of Elk River 6 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
  RSA47154  Polypodium glycyrrhiza Doris K. Kildale 1928-12-29 6766 Humboldt Unspecified Comment
  UCSC000004  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile N.E. of Samoa 3 Comment
  UC1103194  Polypogon monspeliensis Joseph P. Tracy 1918-7-1 4966 Humboldt along Eel River from South Fork to Scotia Holmes Flat; Northern Coast Ranges, along Eel River 60 Comment
  RSA10061  Polypogon viridis Joseph P. Tracy 1926-7-4 7697 Humboldt [Unspecified] Comment
  UC1440055  Polystichum Danin & H. G. Baker 1960-9-2 663 Humboldt Bull Creek-Honeydew Rd. Comment
  HSC1156  Polystichum imbricans D. E. Anderson 1963-9-21 2832 Humboldt 0.5 mi. E of Willow Creek Comment
  HSC36639  Polystichum imbricans subsp. imbricans Thomas W. Nelson, Jane Nelson, James Nelson 1975-6-14 1903 Humboldt Beside branch off Rd. 2SO8 to Pine Mtn. Comment
  UC338401  Polystichum imbricans subsp. imbricans unknown 1904-7-13 Humboldt along stage rd Comment
  RSA247492  Polystichum munitum Gary D. Wallace 1966-9-12 703 Humboldt Along Hwy. 299 E of Arcata near Willow Creek; Comment
  HSC66076  Polystichum scopulinum M. S. Taylor, J. D. Jokerst, L. Ahart 1980-2-8 3214 Humboldt Humboldt Peak, N outcrop on the top 2155 Comment
  CAS-BOT-BC453767  Potamogeton natans Larry DeBuhr; Gary Wallace 1973-5-19 1117 Humboldt Prairie Creek Redwood State Park; at Gold Bluff Beach Comment
  HSC17758  Potamogeton nodosus R. L. Jarvis 1962-4-29 35 Humboldt Turner draw, 3 mi. N of Arcata on Hwy. 101 15 Comment
  UC672876  Potamogeton pectinatus Joseph P. Tracy 1934-7-20 13462 Humboldt Big Lagoon 3 Comment
  SEINET8577021 Image available Potamogeton pusillus S. K. Harris 1938-1 808 Humboldt Eel River,near Fernbridge 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
  CDA26070  Potentilla anserina subsp. pacifica B. F. Kemp 1958-5-14 Humboldt Ferndale. 0 Comment
  HSC18734  Potentilla anserina subsp. pacifica R. E. Hafenfeld 1965-5-9 13 Humboldt Near Squashan Cr. near Gold Bluff Beach Rd. Comment
  HSC44619  Potentilla anserina subsp. pacifica Laura Witherspoon 1977-5-25 Humboldt Manila Comment
  UC585622  Potentilla anserina subsp. pacifica Joseph P. Tracy 1934-7-30 13509 Humboldt along coast in front South End of Stone Lagoon (Dry Lagoon); , in front of South End Stone Lagoon 3 Comment
  UC637136  Potentilla anserina subsp. pacifica Annetta Carter 1934-8-17 719 Humboldt 35 mi n Eureka (e shore of Big Lagoon); e shore of Big Laoon, n of Eureka 3 Comment
  UCD113692  Potentilla anserina subsp. pacifica Linda M. Barker 1976-6-1 1556 Humboldt 3 miles west of Arcata. Comment
  HSC33741  Potentilla anserina subsp. pacifica B. Sullivan 1975-5-24 111 Humboldt Off Samoa Blvd. across from the boat landing Comment
  POM366485  Potentilla anserina var. grandis Glenn A. Gorelick 1967-6-4 s.n. Humboldt Samoa Beach, near Eureka. Marine Sand dunes. Comment
  HSC98969  Potentilla glandulosa subsp. reflexa Cara Witte 2007-6-27 364 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  HSC18746  Potentilla gracilis J. P. Tracy 1934-6-18 13461 Humboldt Grouse Mtn. 1524 Comment
  RSA46469  Potentilla gracilis Doris K. Kildale 1927-7-10 3721 Humboldt Gans Prairie, Bald Hills. Comment
  CAS-BOT-BC540160  Potentilla gracilis var. fastigiata Doris K. Kildale 1925-8-17 1232 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  CAS-BOT-BC517504  Prosartes smithii H. C. Cantelow 1936-5-18 1342 Humboldt 3 miles E of Orick Comment
  HSC15474  Prosartes smithii W. D. Stevens 1964-5-12 11 Humboldt E end of 14th St., Arcata Comment
  HSC15482  Prosartes smithii D. E. Anderson 1961-8-11 1737 Humboldt E of Humboldt State College campus. 30 Comment
  SD39117  Prosartes smithii Marie Cummings 1933-4-18 21 Humboldt Russ Park, near Ferndale. Comment
  HSC14311  Prunella vulgaris Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC59239  Prunella vulgaris Clark L. Miller 1978-5-13 1130 Humboldt Comment
  POM283342  Prunella vulgaris var. lanceolata Lyman Benson 1928-7-10 443 Humboldt Rolling hills by Humboldt Bay, 4 mi. S Eureka 61 Comment
  CAS-BOT-BC159830  Prunus avium Henry M. Pollard 1948-7-20 s.n. Humboldt Near Orleans Escape Comment
  CAS-BOT-BC159977  Prunus emarginata Doris K. Kildale 1927-6-26 3600 Humboldt Big Lagoon Comment
  RSA46842  Prunus emarginata Doris K. Kildale 1927-7-22 3813 Humboldt Lasseck's Peaks Comment
  HSC40671  Prunus virginiana var. demissa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2930 Humboldt Bench W of Lassic Park (Signal Peak) 1677 Comment
  UC1198773  Prunus virginiana var. demissa Joseph P. Tracy 1933-5-14 12176 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC14175  Prunus virginiana var. demissa W. C. Blasdale 1896-6-8 Humboldt Mad River Comment
  UC666842  Prunus virginiana var. demissa Joseph P. Tracy 1933-7-16 12796 Humboldt South Fork Mountain, W slope near top, at Hyampom Trail 1676 Comment
  UCD135199  Pseudognaphalium beneolens Linda M. Barker 1976-8-24 1685 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC35014  Pseudognaphalium stramineum Thomas W. Nelson, James Nelson 1974-9-15 1714 Humboldt W of Fairhaven, Samoa Peninsula Comment
  HSC35629  Pseudognaphalium stramineum Thomas W. Nelson, James Nelson 1975-8-5 2142 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  UC1173655  Pseudognaphalium thermale Joseph P. Tracy 1939-8-16 16424 Humboldt Friday Ridge Grouse Mountain, Friday Ridge (brushy slopes) 1219 Comment
  MACF017382  Pseudotsuga menziesii Trudy R. Ericson 1974-8-5 199 Humboldt Hwy. 299 about 30 mi. east of Eureka in Shasta-Trinity National Forest Comment
  UC673081  Psilocarphus brevissimus var. brevissimus Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16674 Humboldt Grouse Mt. 1554 Comment
  UC1222911  Psilocarphus oregonus Joseph P. Tracy 1949-8-11 18479 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek); Kinsey Ridge 1402 Comment
  UC169085  Psilocarphus tenellus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3592 Humboldt near Hydesville; Northern Coast Region 30 Comment
  CAS-BOT-BC361929  Psilocarphus tenellus L. R. Abrams 1918-6-13 7094 Humboldt Fortuna 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
  HSC100525  Psoralea physodes Carl C. Marshall Jun 1885 11 Humboldt Pilot Creek. Comment
  HSC54568  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-7-24 9596 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC503059  Pteridium aquilinum var. pubescens Joseph P. Tracy 1932-7-20 10732 Humboldt Corral Prairie Trinity Summit; Klamath Mts 1524 Comment
  HSC10868  Puccinellia nutkaensis J. A. Waller 1965-5-16 38 Humboldt Humboldt Bay Comment
  HSC17978  Pyrola aphylla Chestnut, Drew 1888-7-12 Humboldt Campbell's Comment
  UC562457  Pyrola asarifolia Joseph P. Tracy 1936-6-28 15016 Humboldt Bald Mountain at Lake Prairie 1066 Comment
  JEPS48537  Pyrola crypta Hilda W. Grinnell 1932-7-19 29 Humboldt McKay Camp, So. Fork Mt. Comment
  HSC45427  Pyrola crypta Thomas W. Nelson, Jane Nelson 1977-6-19 3502 Humboldt Along ridge N of pond above Alder Springs 1585 Comment
  JEPS66561  Pyrola dentata Joseph P. Tracy 1935-7-30 14356 Humboldt Salmon Summit 1767 Comment
  UC1197577  Pyrola picta Joseph P. Tracy 1933-7-25 12876 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC162733  Pyrola picta Joseph P. Tracy 1911-7-7 3437 Humboldt Brannan Mountain, viz. Ridge North of Willow Creek, between Willow and Campbell Creeks near the Summit 1219 Comment
  CAS-BOT-BC466039  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Sumimt near Corral Prairie 1584 Comment
  UC56314  Pyrola picta Joseph Burtt Davy 1899-6-19 5644 Humboldt Hoopa Mountain Comment
  CAS-BOT-BC62675  Quercus chrysolepis Doris K. Kildale 1926-5-16 1842 Humboldt Horse Mt. road 792 Comment
  HSC35601  Quercus chrysolepis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2012 Humboldt French Camp, Bald Hills. Comment
  HSC98518  Quercus chrysolepis Cara Witte 2008-8-6 1013 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  SBBG1304  Quercus chrysolepis H. and M. Dearing 1933-5-16 2792 Humboldt near Garberville Comment
  UC667989  Quercus garryana Joseph P. Tracy 1935-7-14 14090 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UCD46120  Quercus garryana var. garryana John M. Tucker 1948-9-3 1849 Humboldt California, Humboldt Co.; southwest side of Horse Mountain, ca. 2 mi. south of Berry's Summit; Comment
  UC1196357  Quercus kelloggii Joseph P. Tracy 1940-10-15 16780 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC672858  Quercus kelloggii Joseph P. Tracy 1940-9-15 16723 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1196511  Quercus sadleriana Joseph P. Tracy 1947-7-5 17798 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC104540  Quercus vacciniifolia Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  UC519303  Quercus vacciniifolia Joseph P. Tracy 1933-8-30 13009 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC1103013  Ranunculus alismifolius var. alismellus Joseph P. Tracy 1932-7-15 10588 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  HSC26276  Ranunculus aquatilis var. diffusus Thomas W. Nelson 1971-5-29 453 Humboldt E side of the Big Bend Rd. near Maple Creek Comment
  CAS-BOT-BC378854  Ranunculus californicus var. californicus Doris K. Kildale 1927-3-20 2917 Humboldt Philipsville, south fork of Eel River Comment
  UC668066  Ranunculus flammula Joseph P. Tracy 1937-5-30 15312 Humboldt shallow pool near Bosworth's; Larrabee Creek 365 Comment
  RSA183644  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  UC1196243  Ranunculus orthorhynchus var. orthorhynchus J. P. Tracy Jun 19 1898-May 26 1899 230 Humboldt Ricks Prairie Immediate vicinity of Eureka (edge of pond) 0 Comment
  UC13969  Ranunculus orthorhynchus var. orthorhynchus Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  HSC90641  Ranunculus repens Gail Newton 1982-6-10 3613 Humboldt Elk River Wildlife Area, Eureka Comment
  CHSC1495  Ranunculus repens var. repens M. Underhill 1952-7-13 Humboldt 1 Comment
  HSC18191  Ranunculus uncinatus Jack Rockwell 1962-4-29 33 Humboldt N Bank of Van Duzen River, E of Hwy. 101 Comment
  UC13973  Ranunculus uncinatus Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC38347  Raphanus raphanistrum Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay Comment
  UC1197998  Rhamnus crocea Joseph P. Tracy 1921-7-3 5844 Humboldt near mouth of Willow Creek (along Willow Creek, tributary of Trinity River); Trinity River, Willow Creek 152 Comment
  UC165824  Rhamnus purshiana Joseph P. Tracy 1908-6 2848 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC27016  Rhododendron columbianum Brad Klipfel 1973-8-9 268 Humboldt Big Lagoon County Park Comment
  HSC96473  Rhododendron occidentale var. paludosum Gordon Leppig 1997-6-19 456 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC58162  Ribes binominatum G. L. Clifton, Griswold 1979-8-2 12226 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC902080  Ribes bracteosum Joseph P. Tracy 1948-9-5 18165 Humboldt ne Hawkin's Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC20290  Ribes divaricatum W. R. Rogers 1966-5-1 243 Humboldt Azella State Reserve Comment
  UC902061  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1943-3-21 17412 Humboldt Alton 30 Comment
  UCSB24363  Ribes divaricatum var. pubiflorum Tracy, Joseph 1939-4-27 Humboldt mouth of Little River; at edge of sand dunes 6 Comment
  HSC103224  Ribes inerme var. klamathense Jade Paget-Seekins 2010-5-20 16 Humboldt Off Forest Route 16 (between Big Bar and Hayfork) , approx. 0.6 miles up the 4N29. 1028 Comment
  HSC76263  Ribes lobbii Denis Kearns 1981-7-23 425 Humboldt Near Whiteys Peak. 1524 Comment
  UC1198924  Ribes lobbii Joseph P. Tracy 1942-6-23 17249 Humboldt near Box Camp; Trinity Summit 1584 Comment
  UC205483  Ribes lobbii Joseph P. Tracy 1919-9-18 5247 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  UCD102249  Ribes lobbii Gordon Leppig 1998-6-1 866 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. @ Ammon Ridge Rd. 1524 Comment
  HSC57640  Ribes marshallii G. L. Clifton, Griswold 1979-7-25 10804 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC154119  Ribes menziesii J. P. Tracy 1904-7-31 2130 Humboldt immediate vicinity Eureka 0 Comment
  UC552232  Ribes menziesii Joseph P. Tracy 1934-8-11 13565 Humboldt 2 mi e Arcata (Fickle Hill); North Coast Ranges 304 Comment
  UC902109  Ribes menziesii Joseph P. Tracy 1948-3-6 17954 Humboldt Trinidad 60 Comment
  RSA0021769  Ribes menziesii Patricia Wilder 1968-8-22 4425 Humboldt Coastal rain forest 7 miles south of Ferndale on Mattole Road; N of Cape Mendocino and Capetown. Bear River Ridge, Oil Creek to Pacific drainage area. 549 Comment
  HSC103114  Ribes nevadense M. Mesler, Jen Kalt 2010-8-6 839 Humboldt Trail to Trinity Summit from Water Dog Lakes (6E08, Horse Ridge National Recreation Trail) 1833 Comment
  HSC57146  Ribes nevadense Overton, Butler 1979-7-26 9937 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC45099  Ribes roezlii var. amictum R. Sutherland 1978-4-23 15 .23478 Humboldt 716 Comment
  CAS-BOT-BC198902  Ribes roezlii var. cruentum Kenneth Clark 1980-3-27 55 Humboldt North fork Dead Man's Gulch, Shelter Cove 82 Comment
  UCR45437  Ribes roezlii var. cruentum Kenneth Clark 1980-6-14 691 Humboldt Above N Fork Dead Man's Gulch 229 Comment
  HSC20339  Ribes sanguineum Jack Rockwell 1962-5-4 7 Humboldt S side of Hwy 427 Comment
  UC1198913  Ribes sanguineum Joseph P. Tracy 1928-4-22 8411 Humboldt Willow Creek Canyon Northern Coast Ranges 762 Comment
  UC902056 Image available Ribes sanguineum Joseph P. Tracy 1942-6-23 17238 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC902087  Ribes sanguineum Joseph P. Tracy 1949-7-19 18380 Humboldt Grouse Mountain 1280 Comment
  CAS-BOT-BC144685  Ribes sanguineum var. glutinosum Elmer I. Applegate 1923-9-12 3991 Humboldt Stone Lagoon, south of Orick Comment
  HSC89543  Ribes sanguineum var. glutinosum M. Roantree 1985-5-7 41 Humboldt SW side of Trinidad Head, along trail Comment
  HSC103233  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-14 21 Humboldt Groves Prairie. Near a bridge just upstream from the campsite near the prairie. 1261 Comment
  CAS-BOT-BC173992  Ribes viscosissimum J. H. Thomas 1949-6-13 913 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  HSC99027  Ribes viscosissimum Cara Witte 2008-7-1 783 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  UC176486  Rigiopappus leptocladus Joseph P. Tracy Jul 27 1908-Jul 30 1908 2686 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC56123  Romanzoffia sitchensis G. L. Clifton, Griswold 1979-8-1 11910 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC775204  Romanzoffia tracyi J. P. Tracy and H. E. Parks 1933-5-9 11008 Humboldt Vicinity of Trinidad; bluff near ocean; vicinity of Trinidad, Humboldt Co. 15 Comment
  BLMAR77  Rosa gymnocarpa Jennifer Anthony-Wheeler 1994-6-2 77 Humboldt IAQUA, growing along logging rd 3/4mi from beginning of rd 853 Comment
  CAS-BOT-BC146484  Rosa gymnocarpa Joseph P. Tracy 1936-8-7 15107 Humboldt Trinity Summit, 2 miles southeast of Devil's Hole 1584 Comment
  HSC58022  Rosa gymnocarpa G. L. Clifton 1979-7-31 11827 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC76239  Rosa gymnocarpa Teresa Prendusi 1981-7-9 187 Humboldt Near Cedar Camp. 1268 Comment
  OBI35864  Rosa gymnocarpa David J. Keil 1983-7-2 17330 Humboldt Horse Mtn Summit SW of Willow crk Comment
  UC1222307  Rosa gymnocarpa Joseph P. Tracy 1950-8-4 19267 Humboldt ne Lookout (at head of creek); Bull Creek State Park, Grasshopper Peak, Canoe Creek Comment
  UC154526  Rosa gymnocarpa Mrs. M. H. Manning Sept. 1901 Humboldt near Hupa Comment
  CAS-BOT-BC146828  Rosa nutkana H. E. Parks; S. T. Parks 1937-5-1 5816 Humboldt Spruce Cove, Trinidad 60 Comment
  UC588191  Rosa nutkana var. nutkana H. E. and S. T. Parks June, 1937 24021 Humboldt Spruce Cove Trinidad Comment
  UC667045  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-9 14886 Humboldt Bear River Ridge 609 Comment
  HSC35815  Rosa rubiginosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1921 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  HSC99308  Rosa rubiginosa C. B. Wolf 1927-8-30 1251 Humboldt 3 mi. S of Thorn along old coast road Comment
  UC14221  Rosa spithamea Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC100636  Rubus leucodermis Carl C. Marshall May 1885 78 Humboldt Liscom's Hill. Comment
  HSC40017  Rubus leucodermis Thomas W. Nelson, Jane P. Nelson 1976-7-1 2920 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  CAS-BOT-BC147245  Rubus parviflorus L. R. Abrams 1916-7-11 6013 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  HSC79508  Rubus parviflorus Kenneth Clark 1980-4-18 589 Humboldt Shelter Cove. On lower alluvial terrace of Dead Man's Gulch 24 Comment
  HSC97621  Rubus parviflorus Cara Witte 2007-6-5 212 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  NY1043364  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  RSA201873  Rubus parviflorus Geo. Parrish 1930-5-21 s.n. Humboldt Trinidad. Comment
  UC906703  Rubus parviflorus Harold E. Parks and Joseph P. Tracy 1942-5-16 11562 Humboldt vicinity Garberville; vicinity of Garberville 152 Comment
  POM117571  Rubus parviflorus var. velutinus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC19682  Rubus spectabilis D. B. Bader 1963-3-1 49 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101., E bank of S end Comment
  HSC19685  Rubus spectabilis Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC34629  Rubus spectabilis A. M. Montalvo 1975-4-9 203 Humboldt Arcata Community Forest about .25 mi. up Trail #3 46 Comment
  HSC37377  Rubus spectabilis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 503 Humboldt Along Lost Man Creek. 38 Comment
  HSC95739  Rubus spectabilis Kevin Thomas 2004-3-18 3 Humboldt Near Clam Beach exit of Hwy. 101 N, along old Hwy. 101, at end of Little River Rd. Comment
  RSA304831  Rubus spectabilis James R. Shevock 1972-3-26 1466 Humboldt Along Hwy 299. 366 Comment
  UC1199046  Rubus spectabilis Joseph P. Tracy 1931-4-12 9333 Humboldt near Blue Lake (Mad River (at Essex)); Northern Coast Region, Mad River 15 Comment
  UC1199047  Rubus spectabilis Joseph P. Tracy 1939-7-9 16336 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC156728  Rubus spectabilis Duart V. Brown 1947-3-27 18 Humboldt Tectah Creek, Klamath River Comment
  RSA0009570  Rubus spectabilis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC19696  Rubus ursinus Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC55314  Rubus ursinus Griswold, Butler 1979-7-11 7024 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UCD17817  Rubus ursinus H. Olmo 8-10 May 1962 62 40 Humboldt California. Humboldt County: 1.4 miles east of Dinsmore. Comment
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Jul 3 2014
  UCD17928  Rubus ursinus H. Olmo; T. S. Mallah 1953-4-3 53 60 Humboldt California. Humboldt County: 0.5 miles south of cemetary alongside highway in Rohnerville. East of airport. Comment
  HSC17568  Rumex acetosella Gerald T. Rood 1962-5-6 16 Humboldt Kneeland Rd. ca. 1 mi. W of Barry Rd. Comment
  HSC70394  Rumex acetosella M. A. Baker 1980-6-7 1847 Humboldt Near Ammon Creek 732 Comment
  HSC17571  Rumex acetosella D. E. Anderson 1961-9-30 1836 Humboldt Comment
  JEPS39867  Rumex obtusifolius Milo S. Baker 1923-8-4 181 Humboldt s of Stone Lagoon Comment
  HSC36319  Rumex persicarioides Thomas W. Nelson 1975-8-10 2242 Humboldt At Shively Comment
  SEINET2444095  Rumex salicifolius C. Davidson, S. Christoph 2010-8-18 11780 Humboldt Trinidad State Beach. 3 Comment
  CAS-BOT-BC434097  Rumex transitorius Carl B. Wolf 1927-8-28 1182 Humboldt Salt Marsh, Eureka Bay, on the road to Arcata Comment
  HSC9564  Rytidosperma penicillatum True Hoyle 1967-6-24 26167 Humboldt 20 mi. S of Arcata near Little Salmon Creek on the Marvin Stapp Ranch 46 Comment
  SEINET10966379  Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 Tracy 17267 Humboldt Hungry Hollow. on Bald Mountain 610 Comment
  UC229830  Sagina apetala Joseph P. Tracy 1922-4-30 6007 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC40219  Sagina apetala Barbara Kelly 1977-4-6 290 Humboldt N Spit 100 yds. W of Coast Guard Station Comment
  HSC4151  Sagina decumbens subsp. occidentalis J. P. Tracy 1905-4-30 2172 Humboldt Beach of Humboldt Bay Comment
  HSC62891  Salicornia depressa J. M. DiTomaso 1979-5-20 1066 Humboldt Eureka Bay 3 mi. SW of Arcata on Samoa Rd. Comment
  CAS-BOT-BC132712  Salix A. T. Whittemore 1980-3-15 80 -009 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  UC1196721  Salix Joseph P. Tracy 1935-4-17 13775 Humboldt Alton to Fortuna; Eel R. 15 Comment
  CAS-BOT-BC129899  Salix bonplandiana Joseph P. Tracy 1935-6-22 13960 Humboldt Mouth of Larrabee Creek, on Eel River 45 Comment
  POM220112  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC490565  Salix exigua var. hindsiana Joseph P. Tracy 1932-7-31 10288 Humboldt along Eel River from S. Fork to Scotia (mouth of Larrabee Creek); Northern Coast Ranges 60 Comment
  CAS-BOT-BC104109  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01248 Humboldt floodplain of Eel River at Fernbridge Comment
  CAS-BOT-BC107724  Salix hookeriana Alice Eastwood 1923-8-14 12321 Humboldt Samoa Comment
  CAS-BOT-BC107732  Salix hookeriana Harold E. Parks 1931-3-26 905 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107743  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Bank of Eel River - Fortuna 15 Comment
  CAS-BOT-BC107750  Salix hookeriana Harold E. Parks 1931-5-12 955 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107768  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1223 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CHSC9656  Salix hookeriana E. L. Smith 1971-8-18 1026 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  HSC40879  Salix hookeriana Linda M. Barker 1976-6-14 1599 Humboldt 3 mi. W of Arcata, Lanphere-Christensen Dunes Comment
  HSC41657  Salix hookeriana Thomas W. Nelson 1977-11-3 3759 Humboldt Beside Martin's Slough just upstream from Eureka Muni Golf Course Comment
  HSC59397  Salix hookeriana Rick Lundquist 1979-4-27 44 Humboldt N spit along Samoa Rd., across from Samoa boat ramp 0 Comment
  JEPS12912  Salix hookeriana Joseph P. Tracy 1927-4-23 7923 Humboldt mouth of Little River (edge of sand dunes); Northern Coast Ranges 6 Comment
  JEPS12929  Salix hookeriana Joseph P. Tracy 1931-4-4 9329 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  JEPS12958  Salix hookeriana Joseph P. Tracy 1931-8-9 9609 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  SBBG59115  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  SD937  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC275500  Salix hookeriana Joseph P. Tracy 1925-2-1 6930 Humboldt lowlands near Salmon Creek Corners (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC470430  Salix hookeriana Joseph P. Tracy 1931-5-23 9435 Humboldt near Trinidad Station; Northern Coast Region, vicinity of Trinidad 60 Comment
  UC470437  Salix hookeriana Joseph P. Tracy 1931-10-18 9738 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC470443  Salix hookeriana Joseph P. Tracy 1931-9-19 9676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC481336  Salix hookeriana Harold E. Parks August, 1931 1057 Humboldt Bishop Pine Lodge Trinidad 150 Comment
  UC490465  Salix hookeriana Joseph P. Tracy 1932-9-10 10767 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC526715  Salix hookeriana Joseph P. Tracy 1934-6-28 13267 Humboldt Salmon Creek Valley around Humboldt Bay Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley 9 Comment
  UCD111034  Salix hookeriana Linda M. Barker 1976-4-13 1380 Humboldt 3 miles west of Arcata. Comment
  CDA39526  Salix hookeriana Gordon Leppig 2005-4-8 2203 Humboldt Humboldt Bay Dunes and Wetlands; North Spit, south end of Peninsula Drive. Comment
  UC1173603  Salix laevigata Joseph P. Tracy 1935-5-25 13886 Humboldt Dobbyn Creek 152 Comment
  UC1196582  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1942-9-6 17309 Humboldt near McKay Camp; S. Fork Mt. 1676 Comment
  UC492484  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1932-4-16 1099 Humboldt ca. 16 km. from mouth of Eel R. Ferndale Comment
  SJSU164  Salix lasiandra var. lasiandra H. E. Parks 1931-5-14 959 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  CAS-BOT-BC107592  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1329 Humboldt In dry ravines on west slope of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  CAS-BOT-BC107599  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt On slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  CAS-BOT-BC107616  Salix lasiolepis Harold E. Parks 1931-9-26 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  CAS-BOT-BC107625  Salix lasiolepis Joseph P. Tracy 1934-3-25 13167 Humboldt Blue Slide, on Van Duzen River 91 Comment
  JEPS12930  Salix lasiolepis Joseph P. Tracy 1931-5-31 9327 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  SJSU222  Salix lasiolepis H. E. Parks 1931-5-14 963 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  UC1196619  Salix lasiolepis Joseph P. Tracy 1933-7-20 12807 Humboldt Mad River, near Blue Lake 15 Comment
  UC1196620  Salix lasiolepis Joseph P. Tracy 1926-9-19 7803 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC469424  Salix lasiolepis Joseph P. Tracy 1931-8-16 9614 Humboldt vicinity of Garberbille; Northern Coast Ranges 121 Comment
  UC471108  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC504022  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1254 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  UC506386  Salix lasiolepis Joseph P. Tracy 1932-6-19 10248 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  UC506392  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC511983  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UCD111584  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-13 01255 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road. Comment
  UCSB10872  Salix lasiolepis Parks, Harold; Parks, Susan 1931-8-15 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107418  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-4-1 1701 Humboldt [Dobbyns] Dobbyn Creek Comment
  RSA10903  Salix lasiolepis var. sandbergii Joseph P. Tracy 1933-4-2 10959 Humboldt Berry's Mountain. On Trinity Hwy. E of Redwood Creek. 762 Comment
  CAS-BOT-BC125618  Salix melanopsis A. A. Heller 1923-7-10 13796 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  JEPS14755  Salix melanopsis Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10095 Humboldt Trinity River near Willow Creek; North Coast Ranges 152 Comment
  LA208878  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  LA208880  Salix melanopsis Harold E. Parks; 1931-5-14 956 a Humboldt Van Duzen River above Bridgeville 300.0 Comment
  UC1196568  Salix melanopsis Joseph P. Tracy 1932-5-1 9848 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC1196569  Salix melanopsis Joseph P. Tracy 1932-5-1 9851 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC1196638  Salix melanopsis Joseph P. Tracy 1932-8-27 10746 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC1196650  Salix melanopsis Joseph P. Tracy 1932-10-12 10878 Humboldt along S Fork Eel R. Miranda; Northern Coast Ranges, S Fork Eel R. 121 Comment
  UC198573  Salix melanopsis Joseph P. Tracy 1916-9-5 4776 Humboldt 4 mi. above mouth S. Fork Eel R.; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  UC469448  Salix melanopsis Joseph P. Tracy 1931-5-3 9346 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC481344  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC490562  Salix melanopsis Joseph P. Tracy 1932-5-1 9875 Humboldt vicinity of R. Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC512006  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1232 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UC519362  Salix melanopsis Joseph P. Tracy 1933-6-7 12515 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 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
  UC519376  Salix melanopsis Joseph P. Tracy 1933-6-11 12552 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  POM89803  Salix purpurea Joseph P. Tracy 1919-5-25 5137 Humboldt Humboldt Bay. Ryan's Slough 15 Comment
  UC481359  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Van Duzen R. <at> Little Larabee Bridge; Van Duzen R. 450 Comment
  UC490529  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt open groung at Corral Prairie (back from the meadows); Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC506350  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC526712  Salix scouleriana Joseph P. Tracy 1934-3-13 13162 Humboldt in business district Eureka; Northern Coast Ranges 0 Comment
  CAS-BOT-BC128987  Salix sitchensis Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-13 1256 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  HSC20099  Salix sitchensis H. E. Parks, S. T. Parks 1932-4-12 1111 Humboldt Blue Slide, Van Duzen River Comment
  HSC90401  Salix sitchensis Jean Hanson 1980-3-8 3 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90465  Salix sitchensis Jean Hanson 1980-4-12 33 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  HSC96573  Salix sitchensis Gordon Leppig 2003-2-20 1808 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  UC1199054  Salix sitchensis Joseph P. Tracy 1938-7-31 16088 Humboldt head of Willow Creek (along Trinity Hwy.); Willow Creek Canyon, Willow Creek 762 Comment
  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
  UC303028  Salix sitchensis Joseph P. Tracy 1926-2-21 7359 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481215  Salix sitchensis Harold E. Parks 1931-5-20 995 Humboldt Mad R. Blue Lake; , Blue Lake 15 Comment
  UC490501  Salix sitchensis Joseph P. Tracy 1932-10-2 10857 Humboldt Redwood Creek near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  SEINET4855902  Salix tracyi Unknown 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC1196618  Salix tracyi Joseph P. Tracy 1936-10-17 15201 Humboldt Blue Slide, on Van Duzen River 91 Comment
  RSA1255  Sambucus callicarpa B. D. Stark 1929-7-24 1388 Humboldt 2 miles north of Arcata 30 Comment
  JEPS86686  Sambucus mexicana L. R. Heckard with T. I. Chuang 1990-7-15 6768 Humboldt South Fork Mountain Rd. ca 11 mi n Hwy 36 (near Mad River jct.) 1740 Comment
  RSA28455  Sambucus racemosa var. callicarpa E. K. Balls, P. C. Everett 1953-10-12 18633 Humboldt moist ditches, road to Crannell, 0.5 mi. E from Hwy 101, near first overhead bridge. 15 Comment
  HSC22838  Sambucus racemosa var. racemosa C. D. Hunter 1964-4-12 Humboldt 3 mi. S of Big Lagoon along Hwy. 101 Comment
  HSC58013  Sambucus racemosa var. racemosa G. L. Clifton 1979-7-31 11812 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC59043  Sambucus racemosa var. racemosa Thomas Wood 1979-4-20 118 Humboldt W of Clam Beach adjacent to McKinleyville Rd. Jct. with Hwy. 101 6 Comment
  HSC89430  Sanicula arctopoides P. A. Daly 1984-5-8 9 Humboldt Trinidad Head. 61 Comment
  HSC100692  Sanicula bipinnatifida Carl C. Marshall Apr 1886 184 Humboldt Hill at Scottsville. Comment
  HSC37194  Sanicula bipinnatifida Barbara Kelly 1976-5-13 255 Humboldt Below road at Kneeland Airport Comment
  CHSC35577  Sanicula crassicaulis Jacqueline Greenleaf 1980-5-23 87 Humboldt Near Dinsmores. 430 Comment
  JEPS1004  Sanicula graveolens Joseph P. Tracy 1929-7-4 8614 A Humboldt French Camp Ridge 1066 Comment
  HSC65888  Sanicula tracyi R. York 1980-5-23 622 Humboldt Near Buck Mtn. 1524 Comment
  HSC96245  Sanicula tuberosa M. Lindquist, C. Riley 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on NF 1 1205 Comment
  HSC101030  Sanicula tuberosa John McRae 1994-7-1 36 Humboldt Route 1 to FS Rd. 3N14. Approx. .25 mi. to end of PC-1. 1220 Comment
  HSC32275  Sarcodes sanguinea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5629 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  UC1222363  Saxifraga ferruginea Joseph P. Tracy 1950-8-8 19295 Humboldt head of Croghan Hole (on Trinity Summit, [Granite Rock area]); Trinity Summit, Croghan Hole 1676 Comment
  UC1198883  Saxifraga marshallii Joseph P. Tracy 1935-5-12 13800 Humboldt at East Fork Willow Creek, Willow Creek Canyon, along Trinity Highway Willow Creek; Willow Creek Canyon, East Fork Willow Creek 457 Comment
  UC492230  Saxifraga marshallii Joseph P. Tracy 1927-5-13 7997 Humboldt Willow Creek Canyon,at mouth of East Fork of Willow Creek Willow Creek Canyon; Northern Coast Ranges, , Willow Creek 457 Comment
  HSC26675  Scandix pecten-veneris Thomas W. Nelson 1971-5-9 431 Humboldt Hwy. 36 opposite Goat Rock, 2 mi. W of Bridgeville Comment
  UCD126460  Schedonorus arundinaceus A. H. Murphy 1947-5-15 s.n. Humboldt Sherman Flat, ca. 3.5 miles north of Blocksburg. Comment
  CAS-BOT-BC111702  Schoenoplectus pungens var. badius LeRoy Abrams; Rimo Bacigalupi 1922-6-25 8268 Humboldt Big Lagoon south of Orick Comment
  CAS-BOT-BC111829  Schoenoplectus tabernaemontani Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley place. Comment
  HSC59434  Scirpus microcarpus Kenneth Clark 1979-4-21 141 Humboldt Clam Beach, 3.5 mi. N of McKinleyville on Hwy. 101 Comment
  UC668008  Scirpus microcarpus Joseph P. Tracy 1932-7-14 10561 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC110923  Scirpus microcarpus Doris K. Kildale 1928-5-15 6759 Humboldt Eureka-foot of Whipple Street Comment
  JEPS63972  Scirpus microcarpus Lincoln Constance 1934-6-2 782 Humboldt wet sand below spring on s bank near mouth Bull Cr (Bull Creek Region, South Fork Eel River); Bull Creek Region, South Fork Eel River, s bank Bull Cr Comment
  HSC15633  Scoliopus bigelovii D. E. Anderson 1963-3-23 2397 Humboldt Bald Mtn. Rd. Comment
  RSA183587  Scoliopus bigelovii R. D. Zortman 1963-3-16 13 Humboldt 5 miles northeast of Arcata; south of the Mad River, off Warren Creek Road. 91 Comment
  HSC15631  Scoliopus bigelovii R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1361 Humboldt 3 mi. E of Redwood Creek on old Hwy. 299 Comment
  HSC59743  Scrophularia californica Clark L. Miller 1979-5-9 6117 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  SBBG52998  Scrophularia californica J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  RSA89569  Scrophularia californica Philip A. Munz 1954-7-23 19866 Humboldt 1 mile west of Bridgeville Comment
  UC154015  Scutellaria californica Joseph P. Tracy 1908-6 2817 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC249516  Scutellaria tuberosa Joseph P. Tracy 1922-4-30 6005 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC63880  Sedum laxum subsp. heckneri Doris K. Kildale 1926-6-9 2176 Humboldt Horse Mountain. 1399 Comment
  HSC41479  Sedum laxum subsp. heckneri M. A. Baker 1977-6-13 383 Humboldt 4 mi. S of new confluence of the Klamath River and Bluff Creek Comment
  HSC59107  Sedum laxum subsp. heckneri M. A. Baker 1978-7-17 594 Humboldt On the N bank of the Salmon River, 5 km E of its confluence with the Klamth River Comment
  HSC56994  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-24 9564 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC57647  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-25 10817 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC57880  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-31 11418 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58040  Sedum obtusatum subsp. retusum Gilbert Muth 1979-8-1 11883 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC98735  Sedum radiatum Cara Witte 2007-7-20 552 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  CAS-BOT-BC63792  Sedum radiatum subsp. radiatum Reid Moran 1951-6-13 3485 Humboldt West slope of Buck Mountain 853 Comment
  CAS-BOT-BC63827  Sedum spathulifolium L. R. Abrams 1922-6-25 8294 Humboldt Bluffs north of Big Lagoon. Comment
  UC2046852  Sedum spathulifolium R. E. Brainerd with N. Otting 2012-6-9 2042 Humboldt Humboldt County: Pine Ridge Road, headwaters of Lacks Creek drainage; ca. 17.5 air miles east-northeast of Arcata. Comment
  HSC48309  Sedum spathulifolium var. spathulifolium R. Sutherland 1978-4-22 1 .22478 Humboldt Along King's Crest Trail 1098 Comment
  CDA42470  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway. Comment
  JEPS306  Selaginella wallacei Joseph P. Tracy 1932-3-29 9783 Humboldt coast bluffs Trinidad; Northern Coast Region 60 Comment
  UC449997  Senecio glomeratus Joseph P. Tracy 5117 Humboldt Eureka Comment
  HSC70329  Senecio integerrimus M. A. Baker 1980-6-8 1884 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC364019  Senecio integerrimus var. major Doris Kildale 1931-5-10 10583 Humboldt Snow Camp Comment
  CAS-BOT-BC364022  Senecio integerrimus var. major Doris K. Kildale 1928-5-19 5173 Humboldt Chalk Mountain Comment
  HSC56348  Senecio integerrimus var. major Griswold, Butler 1979-7-10 6259 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC32530  Senecio jacobaea Thomas W. Nelson 1973-9-3 1132 Humboldt McKeown Ranch N of Dinsmore Comment
  SBBG8070  Senecio minimus H. and M. Dearing 1939-6-23 3697 Humboldt 12 mi E of Arcata Comment
  UC1118080  Senecio minimus H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quad., Fieldbrook Comment
  UCD135618  Senecio minimus S. W. Cosby 1921-9-27 s.n. Humboldt south of Ferndale. Comment
  UCD135620  Senecio minimus Gilfillan 1921-8-16 s.n. Humboldt Eureka. Comment
  HSC103247  Senecio sylvaticus Jenny Moore, Tom Carlberg 2014-9-2 Humboldt Six Rivers National Forest, Denny Quad, Grizzly Camp Trailhead. 1409 Comment
  UCR37913  Senecio triangularis D. K. Imper 1982-7-23 1481 Humboldt near Onion Lake 1371 Comment
  HSC100715  Senecio triangularis Carl C. Marshall Jul 1886 330 Humboldt Trinity Mtns. E of Hoopa. Comment
  SEINET3876307 Image available Sequoia sempervirens Bryan Dutton, Emma Dutton 1986-8-13 4513 Humboldt At the Viewcrest Campground on Patrick's Point Drive, ca 1.2 miles from the junction with California 101, north of Trinidad.; 0 Comment
  UC275474  Sequoia sempervirens Joseph P. Tracy 1925-8-9 7281 Humboldt South Fork Eel River at Salmon Creek; Northern Coast Ranges, South Fork Eel River, Salmon Creek 152 Comment
  UC64433  Sequoia sempervirens H. M. Hall 1899-10-1 Humboldt Eel River Comment
  CAS-BOT-BC364783  Sericocarpus oregonensis subsp. oregonensis Doris K. Kildale 1926-8-22 2589 Humboldt On Orick - Martin's Ferry road 716 Comment
  HSC26836  Sherardia arvensis Thomas W. Nelson 1970-12-5 320 Humboldt Near Azalea Park Reserve, McKinelyville Comment
  UCD122007  Sherardia arvensis J. M. Tucker 1948-9-4 1861 Humboldt Beck's Ranch, Hydesville. Comment
  POM208991  Sidalcea diploscypha Lincoln Constance 1934-5-23 613 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park. 366 Comment
  UC1197965  Sidalcea malachroides Joseph P. Tracy 1933-7-21 12819 Humboldt between Van Duzen Yager Creek (Redwood House); between Van Duzen and Yager Creek, Redwood House 762 Comment
  UC668138  Sidalcea malachroides Joseph P. Tracy 1938-6-15 15938 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  HSC104351  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 2005-7-7 13 Humboldt Kneeland 854 Comment
  HSC23746  Sidalcea oregana Tim Baroni 1971-7-6 120 Humboldt 10 mi. S of Ferndale on Mattole Rd. Comment
  JEPS67278  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-8-22 15671 Humboldt 2 mi s Field's Landing (at Still Ranch); s of Field's Landing, Still Ranch 6 Comment
  HSC103772  Silene bolanderi M. R. Mesler 2014-6-4 1634 Humboldt Burr Valley Road near Dinsmore 1012 Comment
  UC161014  Silene californica Joseph P. Tracy 1911-7-9 3457 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, along Willow Creek 182 Comment
  CDA24095  Silene californica R. Spadoni 1992-6-15 Humboldt Along mad River east of Arcata, near Blue Lake, Redwood Valley. 0 Comment
  JEPS50973  Silene californica Lincoln Constance 1934-6-1 770 Humboldt Bull Cr Road between Dyerville Bridge and Bull Creek (flat grove (mouth of Bull Cr)); Bull Creek Region, South Fork Eel River 45 Comment
  SEINET6905325  Silene californica Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt About 4 miles southeast of Kneeland. Comment
  UC419028  Silene californica H. E. Parks May 1930 751 Humboldt vicinity Hydesville; vicinity of Hydesville Comment
  UC1198350  Silene campanulata Joseph P. Tracy 1933-7-11 12675 Humboldt Horse Mountain 1432 Comment
  UC1198352  Silene campanulata Joseph P. Tracy 1947-7-9 17852 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1432 Comment
  HSC57950  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-7-31 11629 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  RSA135349  Silene campanulata subsp. glandulosa Volney Rattan 1883 Humboldt Hoopa Valley. Comment
  UC161034  Silene gallica Joseph P. Tracy 1904-7-24 2124 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  CAS-BOT-BC387077  Silene gallica Doris K. Kildale 1928-5-30 6037 Humboldt mouth of Lindsey Creek Comment
  UC668084  Silene grayi Joseph P. Tracy 1935-7-28 14319 Humboldt head of Devil's Hole , head of Devil's Hole (Trinity Summit) 1828 Comment
  CAS-BOT-BC181220  Silene hookeri subsp. bolanderi Volney Rattan 1883-1-1 s.n. Humboldt Mad River Comment
  HSC41200  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson 1977-7-4 3588 Humboldt Along W side of road N of Alder Springs 1524 Comment
  UCSB11773  Silene laciniata subsp. californica Breedlove, Dennis 1961-7-4 Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  UC161208  Silene menziesii Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pom Comment
  HSC91612  Sinapis arvensis E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, along Patrick's Point Drive Comment
  UC275574  Sisyrinchium californicum Joseph P. Tracy 1924-8-3 6764 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  UCD126873  Solanum aviculare Robert F. Thorne; P. Everett 1965-8-5 35160 Humboldt Samoa Dunes, at edge of Humboldt Bay. 3 Comment
  UC1196157  Solanum sarrachoides Joseph P. Tracy 1940-10-15 16758 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC1222771  Solanum umbelliferum Joseph P. Tracy 1950-6-18 18851 Humboldt Briceland Comment
  UC902078  Solanum umbelliferum Joseph P. Tracy 1949-5-8 18293 Humboldt 5 mi e (of town) Carlotta (by old Strong's District School House) 60 Comment
  POM289137  Solidago californica Lyman Benson 1928-7-10 424 Humboldt Fortuna, Mouth Eel River watershed. 30 Comment
  CDA8726  Solidago canadensis subsp. elongata M. R. Pryor 1948-7-22 Humboldt County Road, Loleta. 0 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
  CAS-BOT-BC365435  Solidago elongata Doris K. Kildale 1925-8-8 2459 Humboldt Mouth of Bull Creek Comment
  BLMAR109  Solidago spathulata Jennifer Anthony-Wheeler 1994-9-8 109 Humboldt Samoa/manilla dunes, growing in every dune mat area in the samoa rare plant protection area 12 Comment
  CAS-BOT-BC365662  Solidago spathulata L. R. Abrams 1916-7-20 6144 Humboldt Eureka Comment
  CHSC55885  Solidago spathulata L. P. Janeway 1987-7-31 2545 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. On dunes. 3 Comment
  SJSU8442  Solidago spathulata H. T. Harvey 1977-7-5 596 Humboldt Elk R Spit, Humboldt Bay Comment
  UC165033  Solidago spathulata J. P. Tracy 1901-8-7 1268 Humboldt opposite Eureka (Ocean Beach of Samoa); Samoa Comment
  UC741150  Solidago spathulata S. K. Harris 1939-9-5 990 Humboldt Samoa Comment
  HSC62888  Soliva sessilis J. M. DiTomaso 1979-5-20 1061 Humboldt Above College Cove at Elks Head, 1 mi. N of Trinidad Comment
  CHSC10128  Sonchus asper J. W. Johnson 1961-6-12 1410 Humboldt Samoa Peninsula. On a dune tongue between the foredunes, at Foredune 39. Comment
  HSC91904  Sonchus asper E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  HSC79453  Sonchus asper Kenneth Clark 1980-4-18 605 Humboldt Along access trail to Deadman's Gulch. 46 Comment
  UC1198766  Sorbus californica Doris K. Kildale 1926-9-5 2635 Humboldt on trail between Red Peak and Signal Peak; Lasseck's Peaks 1676 Comment
  UC205632  Sorbus scopulina var. cascadensis Joseph P. Tracy 1919-9-24 5292 Humboldt Trinity Summit Comment
  UC526834  Sorghum halepense Joseph P. Tracy 1925-9-6 7263 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  UCD94827  Sparganium emersum Bellue 1932-9-28 s.n. Humboldt Arcata. Comment
  HSC10996  Spartina densiflora J. A. Waller 1965-5-15 34 Humboldt Samoa Rd. near Emmerson's Mill. Comment
  CDA26369  Spartina foliosa G. D. Barbe, Dick Drewery 1988-7-18 4294 Humboldt Ferndale: Larry Pries Dairy, 3.4 mi. W of Main St, on Centerville Beach Road. 0 Comment
  SEINET11935224  Spergula arvensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -307 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CAS-BOT-BC390304  Spergularia macrotheca var. macrotheca S. K. Harris 1936-6-7 3225 Humboldt Eureka Comment
  POM160286  Spiraea densiflora Joseph P. Tracy 1926-6-20 7630 Humboldt Horse Mountain. 1463 Comment
  CAS-BOT-BC149618  Spiraea douglasii Malcom A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  JEPS45013  Spiraea douglasii W. L. Jepson 1902-6-24 1924 Humboldt Eureka to Arcata Comment
  UC719818  Spiraea douglasii Rogers McVaugh 1941-8-3 6216 Humboldt ca 1.25 mi s Patrick's Point State Park, Headquarters Comment
  RSA170230  Spiranthes porrifolia Joseph P. Tracy 1916-6-19 4721 Humboldt Dobbyn Creek 183 Comment
  HSC55076  Spiranthes romanzoffiana G. L. Clifton, Griswold 1979-7-31 11686 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1196399  Spiranthes romanzoffiana Joseph P. Tracy 1949-8-11 18463 Humboldt Snow Camp 1402 Comment
  HSC28141  Spiranthes romanzoffiana J. D. Ackerman 1973-8-29 119 Humboldt Big Lagoon Beach Co. Park, 8 mi. N of Trinidad Comment
  RSA382191  Spiranthes romanzoffiana George Henry Grinnell 1926-7-22 s.n. Humboldt Near Eureka. Comment
  HSC98913  Stachys ajugoides Cara Witte 2007-7-11 490 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  CHSC32901  Stachys ajugoides var. rigida James P. Smith 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  JEPS63051  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC635137  Stachys ajugoides var. rigida H. L. Mason 1932-7-21 7103 Humboldt Big Lagoon Comment
  UC668214  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UCLA71172  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  JEPS63062  Stachys ajugoides var. rigida W. L. Jepson 1936-8-15 17901 Humboldt 2 mi e Carlotta Comment
  UC577319  Stachys ajugoides var. rigida Joseph P. Tracy 1930-7-23 9126 Humboldt Cold Springs Northern Coast Ranges, Horse Mountain 1432 Comment
  POM283393  Stachys bullata Lyman Benson 1929-7-19 s.n. Humboldt Mouth of Matole [Mattole] River. Comment
  POM283271  Stachys bullata Lyman Benson 1928-7-10 s.n. Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  HSC91609  Stellaria media E. Mackey 1987-1-17 Humboldt Patricks Point State Park, near Wedding Rock. Comment
  HSC96939  Stipa lemmonii Ryoko Ito, Shauna McDonald 2007-6-11 4 Humboldt 14.1 mi. above Hwy. 299 1372 Comment
  CAS-BOT-BC87609  Streptanthus tortuosus Doris Kildale Gillespie 1931-6-7 10597 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  HSC57631  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-25 10783 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC58158  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-8-2 12218 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  SEINET4173984 Image available Streptopus amplexifolius Joseph P. Tracy 1923-6-24 6366 Humboldt Bald Mountain, near High Prairie 1067 Comment
  HSC96471  Symphyotrichum chilense Gordon Leppig 1997-6-19 455 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC1222982  Symphyotrichum hendersonii Joseph P. Tracy 1941-8-24 17040 Humboldt near McKay camp; South Fork Mountain 1676 Comment
  UC1173673  Symphyotrichum spathulatum Joseph P. Tracy 1939-8-16 16402 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1402 Comment
  CDA5592  Symphytum asperum T. C. Fuller 1968-7-31 17449 b Humboldt 2 miles north of Arcata, Arcata Bottoms. 0 Comment
  RSA153390  Symphytum asperum T. C. Fuller 1961-9-28 7047 Humboldt Humboldt County: Arcata Bottoms, 0.5 mile S of the Mad River, 0.75mile W of Hwy 101, 2miles N of Arcata Comment
  SEINET11071783 Image available Symphytum asperum Johnnie L. Gentry Jr., Earl Jensen 1968-1 2120 Humboldt Approx. 2 miles east of Hwy. jct. US 101 & Tompkins Hill Rd., on Tompkins Hill Road, south of Eureka 30 Comment
  SEINET12275944  Symphytum asperum J. P. Tracy 1943-1 17448 Humboldt near Iverson dairy ranch, Arcata Comment
  HSC21152  Synthyris reniformis N. J. Cole, D. E. Anderson 1965-4-13 12 Humboldt 2.5 mi. SE of Maple Creek Rd. junction with Bald Mtn. Rd., SE of Korbel Comment
  HSC21155  Synthyris reniformis D. E. Anderson 1962-2-10 1917 Humboldt 0.5 mi. E of Big Lagoon Elementary School along abandoned stretch of Hwy. 101 Comment
  JEPS9927  Synthyris reniformis Joseph P. Tracy 1923-3-10 6152 Humboldt Van Duzen River, near Grizzly Creek; Van Duzen River 91 Comment
  UC902237  Synthyris reniformis Joseph P. Tracy 1941-3-26 16812 1/2 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 457 Comment
  HSC40942  Tanacetum bipinnatum Linda M. Barker 1976-6-1 1561 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC78985  Tanacetum bipinnatum L. P. Janeway 1984-5-16 801 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 5 Comment
  CAS-BOT-BC376730  Tanacetum bipinnatum Peter H. Raven 1962-8-31 18079 Humboldt Flats at Dry Lagoon State Park Comment
  RSA21034  Tanacetum camphoratum C. B. Wolf 1937-6-18 8903 Humboldt Centerville Beach 3 Comment
  SEINET11800644  Tanacetum parthenium J. P. Tracy 1946-1 17659 Humboldt Eureka, Tracy's garden Comment
  CHSC35576  Tauschia kelloggii Jacqueline Greenleaf 1980-5-23 90 Humboldt Near Dinsmores. 430 Comment
  HSC71026  Tauschia kelloggii Thomas W. Nelson 1977-4-20 3318 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  UC154102  Tauschia kelloggii Joseph P. Tracy July, 1908 2910 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges, btw Van Duzen and Mad Rivers 914 Comment
  UC275507  Taxus brevifolia Joseph P. Tracy 1924-9-7 6862 Humboldt Grizzly Creek on the Van Duzen River Northern Coast Ranges, Van Duzen River, Grizzly Creek (shady places on river bottoms) 91 Comment
  HSC56241  Tellima grandiflora Walter Overton 1979-8-1 12338 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  HSC20427  Tellima grandiflora T. M. Mingo May 1965 Humboldt W of Fairhaven Dr. intersection with Hwy. 101 Comment
  HSC45268  Tellima grandiflora M. Alcasas 1978-6-3 121 Humboldt Titlow Hill Rd. 0.8 mi. from Hwy. 299 1113 Comment
  UC673060  Thermopsis gracilis Joseph P. Tracy 1937-5-31 15326 Humboldt rocky point at Ruby Creek (along Trinity Hwy); Willow Creek Canyon 518 Comment
  CAS-BOT-BC81317  Thuja plicata Doris K. Kildale 1927-2-20 2961 Humboldt Lord-Ellis road, east of Blue Lake Comment
  SBBG56418  Thuja plicata M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  JEPS49705  Tiarella trifoliata var. unifoliata W. L. Jepson 1932-7-26 16417 Humboldt Bull Creek Comment
  JEPS49714  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-19 82 c Humboldt canyon near Carlotta; canyon near Carlotta Comment
  SD64143  Tiarella trifoliata var. unifoliata Walter Bertsch 1953-7-30 219 Humboldt Hiwy.101 Duncan Grove 75 Comment
  UC677699  Tiarella trifoliata var. unifoliata C. C. and S. K. Harris 1936-6-16 660 Humboldt Redwood forest on Yager Road from Carlotta 152 Comment
  HSC41012  Tonella tenella J. P. Smith, J. O. Sawyer 1976-5-2 8631 Humboldt Hoopa Reservation, 0.2 mi. W of junction with Loop Rd. along Redwood Creek-Hoopa Rd. 61 Comment
  UC906646  Torilis arvensis Joseph P. Tracy 1946-6-15 17557 Humboldt Berry's Mt on Trinity Highway east of Redwood Creek 609 Comment
  POM256868  Torilis arvensis Archie Cathey 1938-7-30 s.n. Humboldt At Cathey Ranch, Miranda 152 Comment
  RSA0001653  Tracyina rostrata Joseph P. Tracy 1916-6-20 4735 Humboldt Southeastern Humboldt county. Alder Point on Eal River. 305 Comment
  CAS-BOT-BC399990  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  UC1137622  Trichostema laxum R. Stahelin 1933-8-20 Humboldt Korbel, above Camp 8 Comment
  HSC81700  Trichostema laxum Thomas W. Nelson, Jane P. Nelson 1979-9-25 5066 Humboldt Along SR 36 3 mi. W of Dinsmore Comment
  UC1222859  Trichostema oblongum Joseph P. Tracy 1950-8-8 19284 Humboldt Croghan Hole, on Trinity Summit 1676 Comment
  JEPS43082  Trientalis latifolia Joseph P. Tracy 1926-5-22 7509 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC1198627  Trientalis latifolia Joseph P. Tracy 1935-5-24 13816 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  RSA245214  Trientalis latifolia E. W Styskel 1963-5-16 24 Humboldt 3 miles SE of Korbel, Snow Camp Road. 290 Comment
  UC1223375  Trifolium arvense Joseph P. Tracy 1941-7-26 16970 Humboldt near 9th (G Street); Eureka Comment
  UC1103431  Trifolium barbigerum Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3636 Humboldt Eureka Northern Coast Ranges Comment
  UC1223509  Trifolium barbigerum Joseph P. Tracy 1936-6-9 14883 Humboldt Bear River Ridge 609 Comment
  HSC97623  Trifolium cyathiferum Cara Witte 2007-6-4 195 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC70358  Trifolium dubium M. A. Baker 1980-6-7 1867 Humboldt Near Ammon Creek 732 Comment
  HSC14995  Trifolium dubium J. W. Johnson 1962-4-18 1246 Humboldt Arcata, Mad River County Park Comment
  SEINET6934966  Trifolium eriocephalum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  RSA135394  Trifolium eriocephalum subsp. eriocephalum Volney Rattan 1878-1 s.n. Humboldt Kneeland Prairie. Comment
  UC495648  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8769 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  HSC48612  Trifolium fucatum Mark Flippo 1978-5-18 61 Humboldt Hwy. 101 N jct. with Giuntoli Lane Comment
  UC906701  Trifolium gracilentum Harold E. Parks and Joseph P. Tracy 1942-5-16 11549 Humboldt vicinity Garberville 152 Comment
  CHSC69825  Trifolium incarnatum J. P. Smith; J. O. Sawyer, Tom Nelson 1972-4-22 Humboldt Freeway exit at Benbow. Planted by the Department of Highways. Comment
  HSC102540  Trifolium longipes subsp. elmeri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1526 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 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
  HSC98664  Trifolium longipes subsp. oreganum Cara Witte 2008-7-2 821 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  HSC97567  Trifolium longipes subsp. shastense C. Witte 2007-5-18 44 Humboldt Near Bottleneck Spring. 1575 Comment
  POM214885  Trifolium macraei Joseph P. Tracy 1927-6-8 8114 Humboldt Trinidad. 15 Comment
  UC165536  Trifolium macraei Harley P. Chandler May, 1901 1148 Humboldt Eureka North Coast Ranges 30 Comment
  HSC15218  Trifolium macraei J. W. Johnson 1961-5-27 1386 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  HSC95210  Trifolium microcephalum Andrea Pickart 2002-7-3 155 Humboldt Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  JEPS65965  Trifolium microcephalum W. L. Jepson 1902-6-20 1898 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC1223353  Trifolium microdon Joseph P. Tracy 1938-6-8 15864 Humboldt Samoa Sand Dunes Comment
  UC1197488  Trifolium obtusiflorum Joseph P. Tracy 1920-5-18 5330 Humboldt 4 mi above mouth of Eel River (Forest Lodge, on South Fork); Northern Coast Ranges 60 Comment
  POM162075  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5438 Humboldt Phillipsville. Facing south fork of Eel River. 122 Comment
  UCR122354  Trifolium pratense George K. Helmkamp, E. A. Helmkamp 2001-7-8 6963 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  HSC77398  Trifolium pratense L. P. Janeway 1983-5-3 259 Humboldt Along E Fence of HSU playing field 21 Comment
  UC33491  Trifolium repens Chesnut and Drew 1888-7-11 Humboldt Eureka Comment
  UCD109391  Trifolium subterraneum R. Tofsrud 1949-7-1 s.n. Humboldt Talarook, Hydesville. Comment
  UC1223541  Trifolium variegatum var. variegatum Joseph P. Tracy 1933-5-20 12253 Humboldt near Petrolia (hills betw town and Ocean) Comment
  JEPS4131  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  POM349598  Trifolium wormskioldii M. B. Dunkle 1936-8-18 4814 Humboldt South of Eureka. 91 Comment
  POM349599  Trifolium wormskioldii J. P. Smith, Thomas W. Nelson 1977-6-30 9207 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC303197  Trifolium wormskioldii Joseph P. Tracy 1925-5-30 7044 Humboldt McClellan Mtn Northern Coast Ranges 822 Comment
  CHSC68791  Triglochin maritima Vernon Oswald 1997-6-5 8531 Humboldt Arcata Oxidation Ponds on South G St., south of Hwy. 255. 6 Comment
  CHSC69507  Triglochin maritima Vernon Oswald; Lowell Ahart 1997-9-4 8849 Humboldt North Coast Region. Big Lagoon County Park at the southwest edge of Big Lagoon. Bordering a drainage entering the lagoon at the boat ramp. 3 Comment
  JEPS32135  Triglochin maritima Joseph P. Tracy 1933-8-22 12988 Humboldt mouth Eel River; mouth of Eel River 3 Comment
  SEINET3151087  Triglochin maritima N. Dennis 1965-6-8 101 Humboldt along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  UC1130595  Triglochin maritima H. S. Yates 1936-6-23 5860 Humboldt 1 mi w Bayside; Eureka Quadrangle Comment
  HSC36302  Triglochin maritima Camille Cornish 1973-10-16 9 Humboldt On shore of Big Lagoon Comment
  POM319420  Triglochin maritima Patricia Wilder 1968-8-21 4392 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  UCD170578  Triglochin maritima Gordon Leppig 1998-4-13 738 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary. 1 Comment
  HSC97549  Triglochin striata Ivy Watson 2008-9-20 30 Humboldt N of mouth of Mad River, along small tributary E of sand dunes 4 Comment
  HSC101808  Trillium kurabayashii Kjirsten A. Wayman 2012-4-1 304 Humboldt Hoopa, 0.3 miles up Bair Road, near Supply Creek 168 Comment
  CAS-BOT-BC133390  Trillium ovatum Alice Eastwood 1939-3-19 18899 Humboldt Bolling Grove Comment
  UC1197825  Trillium ovatum Joseph P. Tracy 1911-5-7 3184 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCD139909  Trillium ovatum Roman Gankin 1956-3-17 105 Humboldt south boundary of Jensen Grove, off U.S. Highway 101. Comment
  HSC99366  Trillium ovatum subsp. ovatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 15 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS884  Triphysaria eriantha subsp. eriantha Harley P. Chandler May, 1901 1142 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  UC1198036  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1911-5-30 3207 Humboldt sandy fields at Bucksport (at Eureka); Northern Coast Region 0 Comment
  UC168980  Triphysaria eriantha subsp. eriantha Harley P. Chandler May, 1901 1249 Humboldt Bair's Ranch on Redwood Creek 152 Comment
  UC1222437  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1942-5-29 17088 Humboldt Eureka 6 Comment
  UC1198043  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1927-4-24 7928 Humboldt Eureka 6 Comment
  UC1011929  Triphysaria versicolor subsp. versicolor F. W. Pennell and J. P. Tracy 1940-7-8 26108 Humboldt e Eureka (Freshwater); Freshwater 9 Comment
  HSC48993  Trisetum canescens M. Andre Baker 1979-5-23 753 Humboldt Comment
  HSC99524  Trisetum canescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 187 Humboldt Near North Trinity Mtn, 11. 5 mi. E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS72932  Trisetum canescens Lincoln Constance 1934-5-23 612 a Humboldt se slope of mountain above Look Prairie 365 Comment
  UC526692  Trisetum canescens Joseph P. Tracy 1932-7-16 10614 Humboldt Corral Prairie; Klamath Mountains 1524 Comment
  UCD93304  Trisetum canescens A. A. Beetle; G. L. Stebbins 1942-6-1 3457 Humboldt 7 miles north of Weitchpec, in northern Humboldt County. Comment
  HSC9982  Trisetum cernuum W. F. Cartwright 1965-4-23 65 Humboldt 3 mi. E of Arcata on Fickle Hill Rd. Comment
  UC1103149  Trisetum cernuum J. P. Tracy 1902-6-20 175 1/2 Humboldt immediate vicinity Eureka 0 Comment
  UC187229  Trisetum cernuum J. P. Tracy 1902-6-20 1751 Humboldt immediate vicinity Eureka 0 Comment
  UCD93899  Trisetum cernuum Harley P. Chandler 1901-5-1 1176 Humboldt Humboldt Bay. 30 Comment
  HSC24373  Triteleia bridgesii J. O. Sawyer 1970-6-24 2238 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  SEINET181190  Triteleia laxa Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15085 Humboldt 5 miles north of Garberville Comment
  HSC3060  Triteleia laxa R. Spellenberg 1964-6-15 416 Humboldt 7 mi. E of Redwood Creek, Hwy. 299 Comment
  CAS-BOT-BC85852  Tsuga heterophylla P. C. Everett; E. K. Balls 1953-10-13 18654 Humboldt 11.3 mi. to 16.6 mi. e. of jct. with Hwy 101 on Hwy 299 from Blue Lake 640 Comment
  UC615043  Tsuga heterophylla Beryl O. Schreiber 1934-6-5 1133 Humboldt 15 mi e of Blue Lake (road to Redding, wooded slope) Comment
  UC55663  Tsuga mertensiana J. P. Tracy 1901-2-3 Humboldt immediate vicinity Eureka 0 Comment
  RSA134171  Umbellularia californica P. C. Everett, E. K. Balls 1959-10-25 23958 Humboldt 12.4 mi W from Willow Creek along US Hwy 299 to Arcata. 655 Comment
  UC1239527  Uropappus lindleyi Joseph P. Tracy 1927-5-8 7973 Humboldt grassy slopes facing South Fork Eel Rivar (Phillipsville); Northern Coast Ranges, South Fork Eel River, Phillipsville 121 Comment
  UCD170579  Urtica dioica subsp. gracilis Gordon Leppig 1998-4-13 736 Humboldt Arcata, Anvick Rd. 12 Comment
  RSA54143  Utricularia vulgaris subsp. macrorhiza H. M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  UC1197783  Vaccinium membranaceum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9034 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC199306  Vaccinium ovatum Doris K. Kildale 1926-4-9 1737 Humboldt Samoa peninsula Comment
  CHSC67763  Vaccinium ovatum Vernon H. Oswald 1997-2-12 8307 Humboldt North Coast of Calif. South end of Trinidad State Beach, town of Trinidad. 30 Comment
  HSC104091  Vaccinium ovatum Monica Rodriguez, William A. Worley 2015-2-21 9 Humboldt Rock Creek Ranch; 8.2 mi. along South Fork Rd. from Redwood Highway 199. 131 Comment
  HSC7907  Vaccinium ovatum J. Pursell 1964-10-11 10112 Humboldt Old Hwy. 101, 3 mi. N Patricks Point State Park Comment
  HSC89437  Vaccinium ovatum P. A. Daly 1984-5-13 26 Humboldt Along trail/Rd. at Trinidad Head. 61 Comment
  RSA1918  Vaccinium ovatum C. B. Wolf 1930-10-24 1017 Humboldt Along the Kamath River, 2 mi. below mouth of Salmon River. Comment
  SEINET3107074  Vaccinium ovatum Steve Selva, Roger Jensen 1974-8-28 96 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  UC1193357  Vaccinium ovatum R. H. Neuns 1950-7-13 133 Humboldt 3 mi s Alder Point (Quad. 29D2) 548 Comment
  UCD166886  Vaccinium ovatum Colleen Rossier 2016-9-16 4 Humboldt In vicinity of Rosaleno Creek, plot Rosaleno #2. 633 Comment
  UCD166887  Vaccinium ovatum Colleen Rossier 2016-9-16 5 Humboldt In vicinity of Rosaleno Creek, plot Rosaleno #1. 601 Comment
  POM131975  Vaccinium parvifolium Joseph P. Tracy 1918-4-21 4879 Humboldt Near Newells old camp, Kneeland Prairie Road. Comment
  SEINET3107075  Vaccinium parvifolium Steve Selva, Roger Jensen 1974-8-28 97 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  UC562450  Vaccinium parvifolium Joseph P. Tracy 1927-6-12 8133 Humboldt Horse Mountain 1432 Comment
  SD257259  Vaccinium parvifolium Jim R. Shevock 1972-3-26 1470 Humboldt Along Highway 299. 366 Comment
  SEINET12318510  Vahlodea atropurpurea K. S. Erdman 1970-1 4819 Humboldt Redwood National Park, summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glen Comment
  HSC3383  Vancouveria hexandra Frances Oldridge 1946-1 Humboldt Eureka Comment
  UC302103  Vancouveria hexandra Joseph P. Tracy 1926-5-22 7513 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  UCR123962  Vancouveria hexandra George K. Helmkamp, E. A. Helmkamp 2001-7-8 6968 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
  HSC37713  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1974-7-17 373 Humboldt Van Duzen Co. Park, off Hwy. 36, 6 mi. E of Carlotta 61 Comment
  HSC99651  Vancouveria planipetala Jimerson, J. Pageau 1979-6-12 530 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  BLMAR34  Vancouveria planipetala Jennifer Wheeler 34 Humboldt King range Comment
  UCD99496  Velezia rigida Joseph P. Tracy 1947-7-5 17774 Humboldt Trinity Summit; local on ridge top one mile west of Mud Springs. Comment
  HSC102701  Ventenata dubia J. P. Smith 2013-6-16 13729 Humboldt Along State Route 36, just west of the 33.68 highway sign (milepost). 758 Comment
  CAS-BOT-BC527424  Veratrum californicum L. B. Kildale 1930-7-11 10206 Humboldt Snow Camp. head of Redwood Creek Comment
  UC1198212  Veratrum californicum var. californicum Joseph P. Tracy 1932-7-20 10733 Humboldt Corral Prairie Trinity Summit 1584 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
  HSC98712  Verbascum blattaria Cara Witte 2007-8-1 616 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1/2 mile north of intersection with Forest Service Road 5N09. 1414 Comment
  HSC21173  Verbascum thapsus H. D. Sumner 1959-7-13 Humboldt Redwood Creek near Hwy. 299 305 Comment
  UC35085  Verbena lasiostachys var. lasiostachys Hy-Ann Pum 1888-7-21 Humboldt Comment
  HSC100685  Veronica americana Carl C. Marshall May 1885 118 Humboldt Along brooks, ditches etc. Comment
  JEPS16812  Veronica serpyllifolia subsp. humifusa Joseph P. Tracy 1935-7-24 14176 Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  HSC44831  Veronica serpyllifolia subsp. humifusa Thomas W. Nelson, Jane Nelson 1977-6-19 3503 Humboldt Northwest of pond above Alder Springs 1585 Comment
  HSC2102  Vicia americana var. americana Elrid H. Spinas 1948-6-16 54 Humboldt Horse Mtn. Comment
  HSC40041  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1976-7-1 2893 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC56929  Vicia americana var. americana G. L. Clifton, Butler 1979-7-26 9357 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC709400  Vicia americana var. americana Joseph P. Tracy 1933-7-26 12905 Humboldt near 5350 ft Grouse Mt. summit; Grouse Mt. Comment
  PASA270  Vicia sativa Frank W. Peirson 1923-7-11 Humboldt 7 miles north of Arcata Comment
  JEPS76829  Vicia sativa subsp. nigra L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4807 Humboldt about 1.2 mi n Eureka bridge (Samoa peninsula) Comment
  UC1562637  Vicia sativa subsp. nigra Barbara Ertter with Thomas J. Delendick 1987-5-16 6913 Humboldt ca 8 mi e Arcata (Hwy 299 roadside, 9.5 mi w of Lord Ellis summit) Comment
  HSC89603  Vicia sativa subsp. nigra M. Roantree 1985-4-28 23 Humboldt E side of Trinidad Head, along dirt road Comment
  HSC78754  Vicia tetrasperma L. P. Janeway, Paul Wilson 1984-5-25 828 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  SD131841  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt Hwy 299 roadside ca 8 miles east of Arcata, 9 1/2 mi. West of Lord Ellis summit 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
  CAS-BOT-BC263940  Viola adunca C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  CAS-BOT-BC263953  Viola adunca V. Rattan 1882-6-1 s.n. Humboldt Kneeland RIver Comment
  RSA249427  Viola beckwithii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5593 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  CHSC57460  Viola cuneata L. P. Janeway 1984-6-17 844 Humboldt On ridge east of Horse Mountain. 1432 Comment
  UC19284  Viola glabella Harley P. Chandler June, 1901 1285 Humboldt Hupa Indian Reservation; North Coast Ranges 1097 Comment
  UC502935  Viola glabella Joseph P. Tracy 1932-7-17 10682 Humboldt head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC97481  Viola glabella C. Witte 2007-5-18 36 Humboldt Along National Forest 1. Approximately 1 mile north of intersection with 5N09. 1456 Comment
  UC275485  Viola hallii Joseph P. Tracy 1925-5-30 7034 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  SEINET6942419  Viola hallii Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. 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
  HSC101993  Viola macloskeyi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 892 Humboldt Patterson Meadows 1555 Comment
  HSC99353  Viola macloskeyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 2 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CDA36588  Viola odorata Gordon Leppig, Sylvia Leppig 2000-12-23 1525 Humboldt Arcata; southwest corner of 10th & I Street. Comment
  HSC49627  Viola odorata R. York 1979-4-13 218 Humboldt College Cove, 1 mi N of Trinidad Comment
  UC668246  Viola praemorsa subsp. linguifolia Joseph P. Tracy 1936-6-17 14950 Humboldt nw slope of Buck Mountain 762 Comment
  UCR45417  Viola praemorsa subsp. praemorsa Pearson, Anderson, Flinn 1986-4-19 210 Humboldt Horse Mountain; 3 miles up Titlow Hill Rd. off Hwy 299 1434 Comment
  HSC73542  Viola purpurea subsp. purpurea Gail Newton 1980-7-14 1478 Humboldt Near Last Chance Ridge. 1219 Comment
  SEINET10404787  Viola sarmentosa Unknown 1967-6-16 67 -12 Humboldt of Orick; James Irvine redwood grove, U.S. 101 Comment
  POM286646  Viola sempervirens Lyman D. Benson 1928-7-8 378 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  CAS-BOT-BC199803  Vulpia L. R. Abrams 1926-7-11 6050 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  HSC9841  Vulpia bromoides J. W. Johnson 1962-5-9 1350 Humboldt Christenson Farm, Samoa Peninsula. Comment
  HSC9843  Vulpia bromoides D. B. Bader 1963-3-29 33 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  UC1145198  Vulpia microstachys var. ciliata Joseph P. Tracy 1939-5-14 16295 Humboldt opposite Buck Mountain (Dinsmore's, flats along Van Duzen River); Van Duzen River 762 Comment
  UC187308  Vulpia microstachys var. microstachys Joseph P. Tracy 1902-6-3 1672 Humboldt near Fruitland Comment
  HSC70537  Vulpia myuros Gail Newton 1980-6-7 139 Humboldt Near Brush Mtn. 1128 Comment
  HSC9925  Vulpia myuros D. C. Juve 1964-5-14 Humboldt Camp Tish-Tang, Campbell Cr. Ranger Station, Hwy. 96. Comment
  HSC33414  Whipplea modesta Thomas W. Nelson 1974-5-30 1348 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  UC1127680  Whipplea modesta H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quadrangle Comment
  UC666827  Whipplea modesta Joseph P. Tracy 1933-6-7 12522 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC20442  Whipplea modesta Yarick 1960-8-5 Humboldt M&M, 7 mi., Krueger Creek Comment
  JEPS32104  Wyethia angustifolia W. L. Jepson 1934-5-8 16717 Humboldt n of Redway; South Fork Eel River Comment
  UC1223305  Wyethia angustifolia Joseph P. Tracy 1950-6-8 18739 Humboldt s slope near Capetown; Bear River Ridge 30 Comment
  HSC100567  Xerophyllum tenax Carl C. Marshall Jun 1885 82 Humboldt Ridge between Redwood and N Fork. Comment
  HSC15777  Zigadenus fremontii J. Wendell Howe 1930-3-30 78 Humboldt Diamond Canyon, presumed Humboldt Co. but not stated Comment
  RSA168946  Zigadenus micranthus Joseph P. Tracy 1950-6-25 18882 Humboldt Burr Valley. On NW slope of Buck Mtn. 1067 Comment
  UC146216  Zigadenus micranthus var. micranthus Joseph P. Tracy 1908-6 2779 Humboldt nw slope Buck Mountain; Northern Coast Ranges, nw slope Buck Mountain 609 Comment
  CDA868  Zostera japonica Gordon Leppig 2002-7-8 1783 Humboldt Indian Island, SW shore, mid-intertidal zone, +1.2 MLW. 0 Comment



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