Search Results — 2000 specimen records retrieved (1352 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC55164  Abies concolor Gilbert Muth 1979-8-1 12146 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC13030  Abies grandis D. Santana, C. Kline Oct 1970 3 Humboldt HSC Campus Comment
  HSC1343  Abies grandis Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  RSA0025088  Abronia latifolia M. B. Dunkle 1936-8-18 4817 Humboldt Moonstone Beach, N. Arcata. Comment
  SBBG11207  Abronia latifolia D. E. Breedlove 1961-7-4 664 Humboldt US Hwy 101, 28.7 mi N of jct US 299 and US 101 3 Comment
  CDA40632  Acaena novae-zelandiae E. C. Whitney 1966-7-28 s.n. Humboldt Mather prop., Simpson Lumber Co., Fieldbrook. 0 Comment
  UC668177  Acer circinatum Joseph P. Tracy 1933-5-21 12213 Humboldt 5 mi e Bridgeville (McClellan Mountain); McClellan Mountain 670 Comment
  SD42321  Acer glabrum Carl B. Wolf 1937-9-13 93360 Humboldt Clear Lake between Horse Mtn. and Grouse Mtn. 1525 Comment
  UC668175  Acer glabrum var. glabrum Joseph P. Tracy 1933-7-11 12707 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC24100  Acer glabrum var. torreyi J. O. Sawyer 1971-6-14 2380 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  UC166038  Acer macrophyllum Joseph P. Tracy 1910-4-17 3117 Humboldt near the forks Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, nr Elk River 0 Comment
  HSC58151  Achillea millefolium G. L. Clifton, Griswold 1979-8-2 12203 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC58329  Achillea millefolium Overton, Butler 1979-8-2 12629 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS37080  Achillea millefolium W. L. Jepson 1932-7-30 16460 Humboldt Bull Creek Comment
  SBBG52982  Achillea millefolium J. D. Hobson -Jul-1966 Humboldt Eureka Harbor, Loleta, 10 mi S of Eureka Comment
  SEINET2146169  Achillea millefolium H. E. Parks, Parks, S. T. 1943-1 24246 Humboldt Egg Point, Trinidad 120 Comment
  UC472295  Achlys californica Mrs. M. H. Manning 1901-4 32 Humboldt near Hupa Comment
  CAS-BOT-BC400021  Achlys triphylla W. R. Dudley 1899-6-18 s.n. Humboldt Near grade descending to Eel River Comment
  RSA183594  Achlys triphylla D. E. Anderson 1963-5-1 2201 a Humboldt 1 mile west of Hoopa Comment
  JEPS52979  Achlys triphylla subsp. triphylla W. L. Jepson 1932-7-26 16421 Humboldt Bull Creek Comment
  CAS-BOT-BC210654  Achnatherum lemmonii Joseph P. Tracy 1933-6-13 12597 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  UC682049  Achnatherum lemmonii G. L. Stebbins Jr. and G. L. Church 1941-5-27 3113 Humboldt 4.1 mi w on road to Bridgeville Dinsmore's 762 Comment
  UCD50710  Achnatherum lemmonii G. L. Stebbins Jr.; G. L. Church 1941-5-27 3117 Humboldt 10.3 miles west of Dinsmore's, on road to Bridgeville. Humboldt County. Comment
  CAS-BOT-BC216454  Achnatherum occidentale subsp. californicum H. E. Parks; Joseph P. Tracy 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  UC1222925  Achyrachaena mollis Joseph P. Tracy 1948-6-13 18054 Humboldt nearby grassy slopes Harris Comment
  SEINET11854795  Achyrachaena mollis J. P. Tracy 1948-1 18054 Humboldt near Harris Comment
  SEINET2429225  Achyrachaena mollis Joseph P. Tracy 1932-6-26 10271 Humboldt Fort Baker Ranch 760 Comment
  HSC45633  Acmispon micranthus Diane L. Reed 1978-4-22 13 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC48617  Acmispon micranthus Mark Flippo 1978-5-31 96 Humboldt Mckinleyville, Bella Vista Rd. Comment
  HSC71611  Acmispon micranthus J. P. Smith 1973-5-26 6837 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  CHSC84729  Aconogonon phytolaccifolium L. P. Janeway 2003-7-26 7923 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  UC1196184  Actaea rubra Joseph P. Tracy 1948-10-24 18256 Humboldt near Fruitland 304 Comment
  HSC99390  Actaea rubra subsp. arguta K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 39 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC197917  Adiantum aleuticum Joseph P. Tracy 1907-8-20 2604 Humboldt Hydesville; Northern Coast Region 30 Comment
  UC154271  Agastache urticifolia Joseph Burtt Davy 1899-6-20 5694 Humboldt Hoopa Valley Comment
  HSC59857  Ageratina occidentalis M. A. Baker 1979-7-7 1016 Humboldt 9.5 km E of Berry Summit along Hwy. 299, N bank of Willow Creek Comment
  UC1223124  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt Friday Ridge 1219 Comment
  UC194430  Ageratina occidentalis P. E. Goddard 1907-7-14 b 128 Humboldt along Van Duzen <River> Van Duzen <River> Comment
  UC76600  Ageratina occidentalis Mrs. M. H. Manning Jun 1 1900-Jul 1 1900 Humboldt near Hupa; Bold Hill Comment
  UC1222926  Agoseris aurantiaca var. aurantiaca Joseph P. Tracy 1949-8-7 18441 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  HSC75954  Agoseris grandiflora Overton, Butler 1979-7-24 9734 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC63846  Agoseris grandiflora M. A. Baker 1979-6-25 914 Humboldt Comment
  UC1222885  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt at n end of town Garberville Comment
  UC205184  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1920-7-4 5341 Humboldt on bluffs facing the ocean Little River Beach; Northern Coast Ranges 15 Comment
  OBI6921  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mi W of Mud Springs (to Box camp on W slope of Trinity summit) Comment
  UC1222938  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mi w, to Box Camp w slope of Trinity Summit Mud Springs; Trinity Summit Comment
  UC275458  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7038 A Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  UC582746  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 C Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  UC175200  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1913-6-14 4132 Humboldt at, (opposite Buck Mountain, in valley of Van Duzen River) Dinsmore's Ranch; Northern Coast Ranges, Van Duzen River 762 Comment
  RSA249387  Agoseris retrorsa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5586 Humboldt Mt. Lassic and 2 smaller peaks to immediate E. 1768 Comment
  UC186910  Agrostis alba Joseph P. Tracy 1907-7-20 2589 Humboldt ocean beach of Humboldt Bay; Northern Coast Region Comment
  CAS-BOT-BC127298  Agrostis exarata Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  RSA10026  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Three Cabins; Chaparral Mountain Comment
  UC526891  Agrostis exarata Joseph P. Tracy 1932-6-14 10145 Humboldt mountainside w mouth of South Fork of Trinity River; North Coast Ranges 609 Comment
  UC552751  Agrostis exarata Joseph P. Tracy 1934-7-2 13296 Humboldt Trinidad 3 Comment
  UCD52234  Agrostis exarata var. pacifica A. H. Murphy 1948-7-29 s.n. Humboldt Sherman Flat, 3.5 miles north of Blocksburg. Comment
  CAS-BOT-BC139502  Agrostis hallii L. R. Abrams 1916-7-18 6128 Humboldt Arcata to Trinidad. Comment
  UC1103523  Agrostis hallii Joseph P. Tracy 1919-9-22 5267 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC58756  Agrostis idahoensis Overton, Butler 1979-7-24 9800 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC35455  Agrostis microphylla J. D. Ackerman 1975-8-2 603 Humboldt Intersection of Indianola Cutoff and US Hwy 101. 3 Comment
  UCD53046  Agrostis microphylla Joseph P. Tracy 1938-7-11 16050 Humboldt near Samoa, on Humboldt Bay. 6 Comment
  HSC102086  Agrostis oregonensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 990 Humboldt Patterson Meadows 1555 Comment
  SEINET200839 Image available Agrostis stolonifera Joseph P. Tracy 1909-7-11 3012 Humboldt Eureka 0 Comment
  HSC34956  Aira caryophyllea Thomas W. Nelson 1975-5-24 1870 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC8855  Aira caryophyllea N. R. Waite 1965-5-19 41 Humboldt W edge of Humboldt State University campus. Comment
  UCD55739  Aira caryophyllea A. A. Beetle; G. L. Stebbins 1942-6-3 3587 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
Read comments
Jan 21 2009
  SEINET5335998  Aira caryophyllea W. D. Billings 1940-6-28 1353 Humboldt 1/4 mi. N of Trinidad Comment
  RSA286352  Aira praecox R. F. Thorne 1974-7-29 45069 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  CAS-BOT-BC445359  Alisma plantago-aquatica Henry M. Pollard 1945-8-24 s.n. Humboldt Pond below Harley place. Near Orleans. Comment
  HSC34696  Alisma triviale Thomas W. Nelson 1974-9-12 1707 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata Comment
  HSC42389  Allium amplectens Dale McNeal 1977-6-6 2046 Humboldt Beside the Bridgeville-Kneeland Rd., 9.4 mi. N of Bridgeville Comment
  UC146211  Allium bolanderi var. mirabile Joseph P. Tracy 1908-6 2771 Humboldt opposite Buck Mountains; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC73536  Allium falcifolium Gail Newton 1980-7-14 1497 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC71809  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5951 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  SD131800  Allium peninsulare Barbara Ertter, Thomas J. Delendick 1987-5-16 6920 Humboldt Vista Point, just west of Berry Summit on Highway 299, ca. 15 airmiles east of Arcata, open grassy south-facing slope with scattered seeps and poison oak, dry rocky ridge below vista. 914 Comment
  UC1562908  Allium peninsulare Barbara Ertter with Thomas J. Delendick 1987-5-16 6920 Humboldt ca. 15 air mi e Arcata (ridge below vista, w of Berry Summit on Hwy. 299); Vista Point 914 Comment
  UC666937  Allium siskiyouense Joseph P. Tracy 1932-7-12 10484 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  UCR32184  Allium siskiyouense David J. Keil 1983-7-2 17327 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  RSA20861  Allium unifolium Carl B. Wolf 1937-8-11 8900 Humboldt Fleener Creek, 0.5 mile south of Centerville. 46 Comment
  HSC63153  Allotropa virgata M. A. Baker 1979-6-30 973 Humboldt 800 Comment
  CAS-BOT-BC171313  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt Bald Mountain; In cold wet meadow near High Prairie 1066 Comment
  UC1197945  Alnus rhombifolia Joseph P. Tracy 1931-12-25 9766 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC65052  Alnus rubra J. P. Smith, Steve Selva 1970-6-30 4115 Humboldt Comment
  POM106497  Alnus rubra Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  SBBG28459  Alnus rubra H. E. and S. T. Parks 1938-4-1 24126 Humboldt Spruce Cove, Trinidad 60 Comment
  UCD110034  Alnus rubra Linda M. Barker 1976-6-14 1602 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCR27989  Alnus rubra A. C. Sanders 1981-8-6 2299 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  SD42324  Alnus tenuifolia Carl B. Wolf 1937-8-13 9268 Humboldt North Coast Range, 12 miles east of Hoopa Valley on new road towards Trinity Summit 1675 Comment
  UCD55913  Alopecurus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  UC212868  Alopecurus aequalis Joseph P. Tracy 1919-5-31 5179 Humboldt near mouth of Willow Creek (shores of Lack Pond); Northern Coast Ranges, valley of Trinity R., Lack Pond 152 Comment
  HSC8887  Alopecurus geniculatus Paul Shields 1955-10-7 Humboldt Essex Pond, near Blue Lake Comment
  UC526860  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt Arcata <Bottom> North Coast Ranges, Arcata <Bottom> 15 Comment
  UC573793  Alopecurus pratensis H. L. Person 1932-5-11 Humboldt Redwood Hwy. between Arcata and Eureka; Eureka Quad. 0 Comment
  SEINET10473459  Ambrosia Mary Susan Taylor 1990-8-22 Taylor 6076 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  SD39999  Ambrosia chamissonis Edith A. Purer 1932-7-27 4144 Humboldt Samoa, near Arcata on sand dunes Comment
  HSC44355  Amelanchier pallida Brad Klipfel 1975-7-11 700 Humboldt Horse Mtn. Comment
  RSA86667  Ammophila arenaria F. W. Peirson 1941-7-29 13112 Humboldt Little River Beach State Park. Comment
  SEINET200930  Ammophila arenaria J. P. Tracy 1918-7-28 5087 Humboldt Humboldt Bay particularly Samoa Comment
  UC54750 Image available Amsinckia intermedia Mrs. M. H. Manning 1901-1 156 Humboldt near Hupa; ; near Hupa Comment
  UC1123227  Anagallis arvensis H. L. Person 1932-8-1 Humboldt Korbel Eureka Quad., Korbel Comment
  HSC17844  Anagallis arvensis W. F. Nickel 1965-5-6 Humboldt On Humboldt State University campus, behind Biological Science Bldg. Comment
  CAS-BOT-BC45135  Anaphalis margaritacea Doris K. Kildale 1925-7-2 899 Humboldt Table Bluff Comment
  CDA30216  Anaphalis margaritacea M. K. Beyers, I. Shepardson 2009-9-13 256 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  UCD128833  Anaphalis margaritacea Linda M. Barker 1976-8-2 1671 Humboldt 3 miles west of Arcata. Comment
  UCR48597  Anaphalis margaritacea R. D. Goeden, Don W. Ricker 1987-9-2 7 A Humboldt Loleta, along Cannibal Road 8 Comment
  CAS-BOT-BC45138  Anaphalis margaritacea Huron H. Smith 1911-6-6 3793 Humboldt Vances Camp 19 Comment
  HSC37662  Anaphalis margaritacea R. Sutherland 1976-8-13 1 .13876 Humboldt 152 Comment
  CAS-BOT-BC391788  Anemone deltoidea Joseph P. Tracy 1930-7-16 8964 Humboldt Northern Coast Ranges. South Fork Mountain; near McKay Camp 1676 Comment
  UC13934  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
Read comments
Sep 17 2012
  CAS-BOT-BC391772  Anemone deltoidea M. Louise Hutchinson 1913-5-1 s.n. Humboldt Near Eureka Comment
  CAS-BOT-BC391779  Anemone deltoidea D. E. Breedlove 1962-6-8 3066 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  UC160912  Anemone oregana Joseph P. Tracy 1909-4-4 2949 Humboldt s foot of Humboldt Hill (near Buhne's Ranch, region about Humboldt Bay); North Coast Ranges 0 Comment
  UC673052  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka, near south city limits Eureka 6 Comment
  UC1197377  Angelica hendersonii Joseph P. Tracy 1924-9-28 6909 Humboldt Northern Coast Ranges, Centerville Centerville; Northern Coast Ranges, Centerville 6 Comment
  HSC71328  Angelica lucida J. M. DiTomaso 1981-6-16 2013 Humboldt Hwy. 101, 1 mi. S of Samoa Blvd., Arcata. Comment
  UC154048  Angelica lucida Joseph P. Tracy 1909-9-19 3087 Humboldt Region about Humboldt Bay (near Samoa, Northern Coast Region); Northern Coast Region 0 Comment
  HSC56203  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-8-2 12194 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC271492  Anisocarpus madioides Doris K. Kildale 1928-5-19 5118 Humboldt Chalk Mountain Comment
  CAS-BOT-BC271499  Anisocarpus madioides L. R. Abrams 1916-7-11 6017 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  UC175968  Anisocarpus madioides Joseph P. Tracy 1911-6-4 3213 Humboldt 5 mi from coast (along Little River); Northern Coast Region, Little River 121 Comment
  HSC56950  Antennaria suffrutescens Overton, Butler 1979-7-23 9450 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  UCR48595  Anthemis cotula R. D. Goeden, Don W. Ricker 1987-9-2 870902- 13 Humboldt Loleta, along Cannibal Road 8 Comment
  HSC32244  Anthemis cotula J. O. Sawyer 1970-6-24 2239 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC10100  Anthoxanthum occidentale T. L. Ackerman 1964-4-24 31 Humboldt 1 mi. up logging road N of elementary school near Freshwater Corners Comment
  HSC5263  Anthoxanthum occidentale John Warner Hosking 1966-8-5 Humboldt Fickle Hill Rd, 1 mi. E of Arcata. Comment
  UCD85343  Anthoxanthum occidentale Linda M. Barker 1976-2-22 1312 Humboldt Coast forest and dunes 3 miles west of Arcata. Comment
  HSC8949  Anthoxanthum odoratum R. T. Forester 1963-4-30 52 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC89545  Anthoxanthum odoratum M. Roantree 1985-5-7 43 Humboldt SW side of Trinidad Head, along trail Comment
  UCSB297  Anthoxanthum odoratum Parker, H.; Parks, S. 1952-04 Humboldt Spruce Cove, Trinidad 60 Comment
  RSA668408  Aquilegia formosa Thomas W. Stark 1967-7-24 100 Humboldt 1/4 mile W of rt 101, 3 miles N of Trinidad Head. 91 Comment
  RSA0126138  Arabis divaricarpa var. interposita Joseph P. Tracy 1932-7-11 10396 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  HSC57443  Arabis glabra G. L. Clifton, Griswold 1979-7-26 10246 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC70246  Arabis subpinnatifida M. A. Baker 1980-6-8 1912 Humboldt Near Buck Flat. 1554 Comment
  HSC3249  Aralia californica H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  RSA246789  Aralia californica R. F. Thorne, P. Everett 1965-8-5 35137 Humboldt Mt. Chamisal: below summit 579 Comment
  SJSU2568  Aralia californica H. L. Buckalew 1962-7-2 Humboldt junction of Willow Creek & E Fork Willow Creek on Hwy 299, eastern Humboldt County Comment
  CAS-BOT-BC128694  Arbutus menziesii Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  HSC7600  Arbutus menziesii John A. Dubois 1962-5-12 12 Humboldt 20 mi. E of Arcata Comment
  HSC99399  Arbutus menziesii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 48 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS44155  Arctium minus W. L. Jepson 1921-9-10 9459 Humboldt flat at Philipsville; flat at Philipsville Comment
  UC1196872  Arctostaphylos Joseph P. Tracy 1926-6-6 7568 Humboldt road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UC585946  Arctostaphylos Joseph P. Tracy 1934-3-11 13155 Humboldt French Camp Ridge 1066 Comment
  UC314642  Arctostaphylos X media Joseph P. Tracy 1923-3-31 6171 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  CAS-BOT-BC25210  Arctostaphylos canescens subsp. canescens J. P. Tracy 1941-4-8 16850 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  HSC98604  Arctostaphylos canescens subsp. sonomensis Cara Witte 2008-6-4 676 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  CAS-BOT-BC23775  Arctostaphylos columbiana Joseph P. Tracy 1936-8-2 15074 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23778  Arctostaphylos columbiana P. C. Everett; E. K. Balls 1959-10-26 23975 Humboldt 4 mi. SE from Honeydew, along Old Coast road to Ettersburg. 457 Comment
  HSC33059  Arctostaphylos columbiana Thomas W. Nelson 1974-5-7 1238 Humboldt Kneeland Rd. at jct. with Maple Creek Rd. Comment
  JEPS38945  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  RSA622683  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27815 Humboldt Highway 299, east of Lord Ellis Summit, east of Eureka. 700 Comment
  UC1225901  Arctostaphylos columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff 91 Comment
  UC585916  Arctostaphylos columbiana Joseph P. Tracy 1935-2-9 13710 Humboldt Big Lagoon 3 Comment
  UC718360  Arctostaphylos columbiana Carl B. Wolf 1934-7-3 5919 Humboldt Weitchpec Rd 21 mi from Orick 152 Comment
  UC726576  Arctostaphylos columbiana A. A. Heller 1937-6-12 15918 Humboldt along road paralleling the ocean Bishop Pine Lodge (3 mi n of Trinidad) Comment
  UCD50745  Arctostaphylos columbiana Roman Gankin 1965-8-5 543 A Humboldt Top of Chimisal Mountain west of Wailaki Recreation Area, Bureau of Land Management. Comment
  UCD50760  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1168 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). 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
  UCD51493  Arctostaphylos columbiana B. L. Kay 1955-3-20 Humboldt 5 miles west of Garberville. Comment
  RSA152310  Arctostaphylos columbiana var. columbiana Joseph P. Tracy 1945-5-15 17510 Humboldt Kneeland Prairie. 671 Comment
  UC1193149  Arctostaphylos glandulosa subsp. glandulosa G. W. Tourtillott 1950-10-11 33 Humboldt 1 1/2 mi mi ne Horse Mt.; Quad 28D4 609 Comment
  HSC101663  Arctostaphylos glandulosa var. cushingiana J. P. Smith, J. O. Sawyer 2011-4-23 13124 Humboldt Kings Peak Road near Shelter Cove. 523 Comment
  JEPS38946  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  RSA632801  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27791 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  CAS-BOT-BC24475  Arctostaphylos manzanita Walter Knight; Irja Knight 1988-9-5 6362 Humboldt Bald Hill Road about 21.5 mi. from U.S. 101 en route to Hoopa. 929 Comment
  RSA633017  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27811 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  CAS-BOT-BC38834  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-4-6 1718 Humboldt Dobbyns Creek - along road from mail boxes to Log Cabin Ranch 304 Comment
  SEINET2031081 Image available Arctostaphylos montana Joseph P. Tracy 1934-1 13158 Humboldt French Camp Ridge 1067 Comment
  RSA46694  Arctostaphylos nevadensis Doris K. Kildale 1938-6-5 15390 Humboldt Horse Mountain Comment
  SEINET11989136  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1982-1 4517 Humboldt Tilden Botanic Garden, Berkeley, orig. from French Camp on road between Orick & Wichepec Comment
  CAS-BOT-BC46627  Arctostaphylos patula L. B. Kildale 1930-8-10 10533 Humboldt Snow Camp. Head of Redood Creek. Comment
  HSC102573  Arctostaphylos patula M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1560 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC7730  Arctostaphylos uva-ursi Norman H. Moe 1962-3-17 Humboldt Lanphere's Place Comment
  UC154160  Arctostaphylos uva-ursi Harley P. Chandler May, 1901 1206 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC180220  Arctostaphylos uva-ursi Joseph P. Tracy 1914-8-30 4594 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC21913  Arctostaphylos uva-ursi Harley P. Chandler May 1901 1133 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  UCD52152  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1148 Humboldt Comment
  SEINET11987311  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4200 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from Samoa Sand Spit Comment
  HSC59030  Arctostaphylos viscida M. A. Baker 1979-6-7 795 Humboldt NE slope of Telescope Peak 1189 Comment
  CAS-BOT-BC526229  Arctotheca calendula G. D. Barbe; T. C. Fuller 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 mi W of Main Street, on Centerville Beach Road, Ferndale Comment
  CDA10101  Arctotheca prostrata Gordon Leppig 2000-4-9 1288 Humboldt Arcata. Union Street at 7th Street. South of Phillips House. Comment
  UCD56445  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC16898  Armeria maritima subsp. californica L. H. Myers 1963-5-5 2 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  HSC59482  Armeria maritima subsp. californica M. A. Ericksen 1979-4-29 243 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  UC1716064  Armeria maritima subsp. californica M. S. Taylor 1990-8-22 6083 Humboldt Samoa Recreation Area, Samoa Peninsula, Staging Area Eureka Comment
  HSC48024  Arnica cernua Brad Klipfel 1974-6-25 423 Humboldt Horse Mtn. Comment
  HSC65884  Arnica cernua M. A. Baker 1980-6-16 1944 Humboldt Near Onion Mtn. 1280 Comment
  HSC74646  Arnica cordifolia M. A. Baker 1980-5-17 1215 Humboldt Near Le Perron Peak 792 Comment
  HSC64162  Arnica discoidea J. O. Sawyer, K. A. Sawyer 1979-6-24 3406 Humboldt Slopes alongside Aikens Creek. 366 Comment
  CAS-BOT-BC82429  Arnica discoidea Doris K. Kildale 1927-6-24 3539 Humboldt top of ridge before descent to Shelter Cove Comment
  UC129438  Arnica latifolia Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5754 Humboldt Trinity Summit Comment
  RSA46799  Arnica latifolia Doris K. Kildale 1926-4-25 1808 Humboldt Sugar Bowl Mt. near Hoopa Comment
  UC1103324  Arrhenatherum elatius Joseph P. Tracy 1927-7-4 8237 Humboldt North Coast Ranges, Iaqua, Lone Star Creek Lone Star Creek Lone Star Creek; North Coast Ranges, Iaqua, Lone Star Creek 609 Comment
  UCD56014  Arrhenatherum elatius Freed W. Hoffman 1946-5-19 1726 Humboldt North Coast Ranges. Mattole River. Comment
  HSC58342  Artemisia douglasiana Overton, Butler 1979-8-2 12667 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC198625  Artemisia douglasiana Joseph P. Tracy 1917-9-3 4856 Humboldt head of Redwood Creek (Janes Ranch) 914 Comment
  RSA289423  Artemisia dracunculus Lyman Benson 1929-7-16 1824 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  UC204825  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt 3 mi s point of cape; Northern Coast Ranges, Cape Mendecino 3 Comment
  UC154230  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC400534  Asarum caudatum Doris K. Kildale 1928-5-19 5183 Humboldt Chalk Mountain Comment
  HSC102553  Asarum caudatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1541 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  SEINET4069277 Image available Asarum caudatum O. M. Clark 1932-1 5319 Humboldt South Eureka. Comment
  UC677691  Asarum caudatum C. C. and S. K. Harris 1936-6-14 652 Humboldt Yager Road from Carlotta 457 Comment
  HSC74315  Aspidotis densa M. A. Baker 1980-7-11 2800 Humboldt Near Red Mtn. 1433 Comment
  POM182350  Aspidotis densa Joseph P. Tracy 1912-7-26 3849 Humboldt Kneeland Prairie 762 Comment
  POM161487  Aster brickellioides Joseph P. Tracy 1918-9-18 5223 Humboldt Trinity Summit. Comment
  UCR48599  Aster chilensis R. D. Goeden, Don W. Ricker 1987-9-2 870902- 10 Humboldt Loleta, along Cannibal Road 8 Comment
  CDA26595  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land. THP 1-00-461HUM. Comment
  HSC96346  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land, edge of logging road. 700 Comment
  CAS-BOT-BC192860  Astragalus purshii var. lectulus Thomas W. Nelson; James L. Nelson 1980-6-10 5405 Humboldt Along Swayback Ridge 4-wheel drive road ca 2.5 miles north of junction with Forest Service road 1S07 1463 Comment
  UC1199092  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1930-7-21 8891 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  CHSC98380  Astragalus umbraticus Dean Wm. Taylor 2006-8-2 19569 Humboldt Showers Mountain; on north flank of the mountain, south rim of the Mad River canyon. 1051 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
  UC160962  Astragalus umbraticus Mrs. M. H. Manning 1900-7-1 181 Humboldt near Hupa (Hoopa) (Bald Hills, Hupa Valley); near Hupa (Hoopa), Bald Hills, Hupa Valley Comment
  HSC57103  Asyneuma prenanthoides Overton, Butler 1979-7-25 9836 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC197922  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt along Black Creek Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC503067  Athyrium filix-femina var. cyclosorum H. E. Parks and Joseph P. Tracy 1930-9-13 9180 Humboldt Jacoby Creek; Northern Coast Ranges 121 Comment
  UC503069  Athyrium filix-femina var. cyclosorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9008 Humboldt near McKay Camp S Fork Mt; Northern Coast Ranges 1676 Comment
  HSC32331  Athysanus pusillus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5671 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  UC1222660  Athysanus pusillus Joseph P. Tracy 1950-4-20 18627 Humboldt 4 mi se of Low Gap (above Kuntz, Van Duzen River); Van Duzen River 792 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
  UCD56261  Avena fatua A. H. Murphy 1951-4-2 8 Humboldt Alongside U.S. Hwy. 101. 1/4 mile south of Phillipville. Comment
  CAS-BOT-BC66230  Azolla filiculoides Robert F. Thorne; P. Everett 1965-8-9 35325 Humboldt Clam Beach County Park 3 Comment
  CAS-BOT-BC98770  Baccharis douglasii Frank W. Peirson 1926-7-13 7061 Humboldt Mad River, vicinity of Blue Lake Comment
  CAS-BOT-BC98771  Baccharis douglasii Carl B. Wolf 1927-8-30 1239 Humboldt Minor's Ranch, Union Matole, 6 mi. so. of Petrolia Comment
  UC175209  Balsamorhiza deltoidea Joseph P. Tracy 1913-6-17 4175 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1524 Comment
  CAS-BOT-BC99988  Balsamorhiza deltoidea Doris K. Kildale 1929-4-29 7449 Humboldt Willow Creek - Salyer Road along Trinity River, 3 miles south of Willow Creek Comment
  CAS-BOT-BC99990  Balsamorhiza deltoidea Mark Bransom; Daniel Brown; Ron Hildebrandt; Nina Meiselman 1986-4-19 20 Humboldt Across Rt. 299 from White's Bar picnic area; 1/2 mi. up roadbank Comment
  HSC28223  Barbarea verna Thomas W. Nelson 1973-4-25 798 Humboldt Beside Hwy. 101 at the Bayside turnoff Comment
  HSC89519  Barbarea verna M. Roantree 1985-6-10 85 Humboldt W side of Trinidad Head Comment
  CDA38657  Bellardia trixago B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -A Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 Comment
  HSC39790  Bellis perennis Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  HSC5193  Bellis perennis Francis Winter 1960-4-24 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC62831  Bensoniella oregona William Davilla 1980-10-16 1219 Humboldt Snow Camp Mtn. 1390 Comment
  HSC97596  Berberis aquifolium var. aquifolium Steven Lee 2004-4-26 31 Humboldt Horse Mtn., 5 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  HSC24105  Berberis aquifolium var. repens J. O. Sawyer 1971-6-17 2388 Humboldt Along trail slopes above Horse Linto Creek 1341 Comment
  HSC48473  Berberis aquifolium var. repens J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9934 Humboldt Six Rivers Natl. Forest, along Ishi Pishi Rd., 1.5 mi. from the Ishi Pishi Bridge over the Klamath River 305 Comment
  BLMAR655  Berberis nervosa Jennifer Wheeler 2012-5-9 655 Humboldt Lacks Creek, Beaver Ridge Road 914 Comment
  HSC100398  Berberis nervosa Carl C. Marshall Apr 1886 67 Humboldt Woods in redwood belt. Comment
  HSC36904  Berberis pinnata J. P. Smith, J. Sawyer, J. Cole 1976-4-18 8613 Humboldt Bald Hills Rd., 17 mi. E of its jct. with Hwy. 101 854 Comment
  HSC55079  Bistorta bistortoides G. L. Clifton, Griswold 1979-7-31 11712 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC26828  Blechnum spicant Clifton Raymond Chesbrough 1973-6-19 73 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UCD114326  Boechera divaricarpa Joseph P. Tracy 1932-7-11 10396 Humboldt Trinity Summit. Open ground at corral prairie, Klamath Mountains. 1524 Comment
  CAS-BOT-BC14301  Boechera platysperma Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1676 Comment
  CAS-BOT-BC14302  Boechera platysperma Joseph Prince Tracy 1932-7-12 10458 Humboldt Klamath Mountains. Trinity Summit. Head of Brett Hole. 1828 Comment
  JEPS109416  Boechera subpinnatifida D. W. Taylor 2004-6-24 19131 Humboldt Horse Mountain, along Titlow Hill Road, 0.4 miles N from junction with the road to the mountain summit. Comment
  CHSC69843  Bolboschoenus maritimus subsp. paludosus Leonel Arguello 1989-6-11 Humboldt At the Lanphere-Christensen Dunes Preserve 3 miles west of Arcata. Along the edge of the salt marsh, approximately 50 ft. west of the Salt Marsh trail. Comment
  HSC39874  Bolboschoenus robustus Peter Sorensen 1976-8-6 Humboldt King Salmon Comment
  UC197910  Botrychium multifidum Joseph P. Tracy 1906-11-4 2551 Humboldt Eureka 0 Comment
  CAS-BOT-BC95327  Bowlesia incana Dr. A. Kellogg; W. G. W. Harford 1868-1-1 297 Humboldt unspecified Comment
  HSC97981  Boykinia major Cara Witte 2007-7-11 487 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  HSC100718  Brassica campestris Carl C. Marshall May 1886 206 Humboldt Fields. Comment
  SEINET12012990  Brassica juncea M. A. Lane 1990-3-20 3296 Humboldt below US 101 & above Benbow Drive to Benbow Lake State Recreation Area Comment
  CAS-BOT-BC36698  Brassica rapa Roxana S. Ferris 1937-8-21 9391 Humboldt Face of Cliff above Shelter Cove. Comment
  CAS-BOT-BC106287  Brickellia californica Joseph P. Tracy 1934-9-30 13681 Humboldt Bridgeville, on river bar 198 Comment
  RSA695640  Brickellia californica J. Russell Bruff 1937-8-17 932 Humboldt Richardson Grove, bed of Eel River. Comment
  HSC70984  Brickellia greenei Gail Newton 1980-7-22 1660 Humboldt Near Devils Backbone 1554 Comment
  HSC100308  Briza maxima J. P. Smith 2011-5-4 13146 Humboldt New Navy Base Rd. SW of Samoa. 3 Comment
  HSC45222  Briza maxima M. Alcasas 1978-5-27 108 Humboldt Access road to Eel River Sawmills, 0.2 mi. from U.S. 101 30 Comment
  HSC67027  Briza maxima J. P. Smith 1970-6-7 3808 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC89547  Briza maxima M. Roantree 1985-5-2 35 Humboldt E side of Trinidad Head. Comment
  UC180488  Briza minor Joseph P. Tracy 1914-5-14 4442 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UCD57437  Briza minor A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3455 Humboldt 2 miles north of Orleans. Comment
  UC666901  Brodiaea elegans subsp. elegans Joseph P. Tracy 1930-6-15 8759 Humboldt on grassy places Alder Point 152 Comment
  HSC32915  Brodiaea stellaris Thomas W. Nelson, Jane P. Nelson 1973-3-28 964 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS5502  Brodiaea stellaris Joseph P. Tracy 1923-7-4 6526 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  RSA249396  Brodiaea stellaris D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5697 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC666939  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1933-5-20 12249 Humboldt 1 mi w Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  HSC102646  Bromus carinatus var. carinatus J. P. Smith 2009-5-31 12607 Humboldt Bald Hills Road. 713 Comment
  UC37673  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  UC526734  Bromus carinatus var. carinatus Joseph P. Tracy 1932-7-12 10449 Humboldt lamath Mountains, Trinity Summit, at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  HSC102146  Bromus carinatus var. marginatus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1053 Humboldt Patterson Meadows 1566 Comment
  HSC65109  Bromus diandrus J. P. Smith, Steve Selva 1970-6-14 3829 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC9289  Bromus diandrus N. R. Waite 1965-5-18 33 Humboldt W edge of Humboldt State University campus Comment
  BLMAR41  Bromus diandrus Brad Barr 1982-6-21 41 Humboldt King range, hidden valley enclosure Comment
  SEINET4391136  Bromus diandrus W. D. Billings 1940-6-22 1343 Humboldt 0.5 mile N of Trinidad Comment
  HSC102645  Bromus hordeaceus J. P. Smith 2009-5-31 12607 Humboldt Bald Hills Road. 713 Comment
  HSC58808  Bromus vulgaris G. L. Clifton 1979-7-31 11871 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC725498  Bromus vulgaris A. A. Heller 1923-7-10 13789 Humboldt Humboldt Camp between Scotia and Pepperwood; Humboldt Camp Comment
  HSC6608  Cakile maritima D. E. Anderson 1961-9-2 1770 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  UCD114935  Cakile maritima M. Barbour 1969-9-4 s.n. Humboldt Just west of Trinidad and north, across isthmus from Trinidad Bay. Comment
  CAS-BOT-BC36911  Cakile maritima var. maritima Kenneth Clark 1981-5-24 1395 Humboldt Shelter Cove. 300 yards west of Dead Man's gulch. 3 Comment
  UC100200  Calamagrostis nutkaensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1194 Humboldt Eureka; southern outskirts Comment
  UCD57504  Calamagrostis nutkaensis Elizabeth Wilson 1940-7-12 s.n. Humboldt north of Eureka. Comment
  HSC95579  Calandrinia ciliata Andrea Pickart 2002-3-14 6 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  UC1103691  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1913-5-11 4073 Humboldt Eureka Northern Coast Region (at Stephen Hill place) 0 Comment
  UC1103689  Callitriche marginata J. P. Tracy 1909-5-2 2957 Humboldt Immediate vicinity Eureka 0 Comment
  CAS-BOT-BC80385  Calocedrus decurrens Doris K. Kildale 1927-12-1 4203 Humboldt Klamath River at Orleans Comment
  CAS-BOT-BC80391  Calocedrus decurrens Doris K. Kildale 1928-10-7 6750 Humboldt Trinity River at Willow Creek Flat Comment
  HSC99537  Calocedrus decurrens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 202 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC488454  Calochortus amabilis Ella Dales Cantelow 1939-6-4 2442 Humboldt 6 1/10 mi. w. of Alder Point on road to Bridgeville. Comment
  HSC74317  Calochortus elegans var. nanus M. A. Baker 1980-7-22 3061 Humboldt Near Salmon Mtn. 1820 Comment
  HSC32949  Calochortus tolmiei Thomas W. Nelson, James Nelson 1973-5-28 961 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC36504  Calochortus tolmiei Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1887 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC38517  Calochortus tolmiei D. E. Anderson, J. P. Smith 1971-6-18 - 1082 Humboldt Horse Mtn. Comment
  HSC71492  Calochortus tolmiei R. York 1980-5-17 521 Humboldt Near Le Perron Peak 792 Comment
  HSC74349  Calochortus tolmiei Gail Newton 1980-6-28 748 Humboldt Near Mad River Butte. 1536 Comment
  CAS-BOT-BC496521  Calochortus tolmiei Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka 762 Comment
  HSC44357  Calochortus tolmiei Brad Klipfel 1974-5-27 399 Humboldt Horse Mtn., ridge top near forks in rd. Comment
  UC9022  Caltha biflora J. Burtt Davy 1899-6-23 5764 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit. Comment
  UC34627  Calycadenia fremontii Chesnut and Drew 1888-7-24 Humboldt Hy-Am-Pim Comment
  UC205227  Calycadenia fremontii Joseph P. Tracy 1919-9-13 5188 Humboldt near Mouth of Willow Creek; Valley of Trinity River, Northern Coast Ranges 152 Comment
  UC405402  Calycadenia truncata Chesnut and Drew 1888-7-28 Humboldt Comment
  HSC97493  Calypso bulbosa Cara Witte 2007-5-21 59 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 and National Forest 1. 1410 Comment
  RSA168802  Calypso bulbosa Joseph P. Tracy 1950-5-7 18643 Humboldt Under firs: about 5 miles north of Bridgerville on the road to the South Yager Valley. Abundant in certain favored spots only. Comment
  RSA381906  Calypso bulbosa Grinnell 1917-6-6 s.n. Humboldt Hoopa Indian Reservation Comment
  RSA304262  Calypso bulbosa var. occidentalis James R. Shevock 1972-3-27 1481 Humboldt Redwood State Park Comment
  HSC32545  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 1973-7-10 1030 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  JEPS31595  Calystegia occidentalis subsp. occidentalis W. L. Jepson 1934-5-7 16700 Humboldt Buckeye Prairie , Buckeye Prairie (Bull Creek) Comment
  HSC38379  Calystegia soldanella Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC31366  Calystegia soldanella Larry E. DeBuhr, G. Wallace 1972-5-23 650 Humboldt Freshwater Lagoon 2.5 mi. S of Orick on Hwy. 101 Comment
  UCSB15924  Calystegia soldanella Breedlove, Dennis 1962-6-8 Humboldt Near coast on U.S. Highway 101, 3 miles south of Orick Comment
  HSC16450  Camissonia cheiranthifolia D. E. Anderson 1963-3-16 2386 Humboldt Scotia Bluffs Comment
  HSC59194  Camissonia cheiranthifolia Terry Roth 1979-4-21 16 Humboldt 1 mi. down the S Jetty Rd. 3 Comment
  UC144061  Camissonia contorta Joseph P. Tracy 1905-6-11 2191 Humboldt Bucksport Northern Coast Region, region about Humboldt Bay 0 Comment
  UC741172  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. and S. K. Harris, Clarence Crane Jr. 1939-8-23 970 Humboldt Samoa Comment
  SEINET10462962  Campanula prenanthoides Overton 1979-7-23 OVERTON 9491 Humboldt Near Titlow Hill, on the Willow Creek quad., close to the town of Willow Creek 1280 Comment
  SEINET10462960  Campanula prenanthoides Klipfel 1973-8-3 KLIPFEL 309 Humboldt Along ridge trail southeast of North Trinity Mountain. T8N R6E Secs. 11, 14 1829 Comment
  SEINET10462968  Campanula prenanthoides James P. Smith 1977-7-3 Smith, Jr. 9236 Humboldt Six Rivers National Forest; on the road to Onion Lake, 4.7 miles from it junction with State Route 36. T10N R4E Sec. 11 610 Comment
  SEINET10873256  Campanula prenanthoides Willis L. Jepson Jepson s.n. Humboldt Big Heorse Mountain Comment
  UC1174488  Campanula prenanthoides Volney Rattan 1883-6-30 Humboldt Comment
  SEINET10463516  Campanula scouleri Overton 1979-7-23 OVERTON 9497 Humboldt NR TITLOW HILL, WILLOW CR. QUAD., NR WILLOW CR. EVERGREEN CONIFER FOREST, SEEPAGE 1280 Comment
  SEINET10463703  Campanula scouleri Baker 1947-8-10 Baker 11901 Humboldt 15 mi NE of Hoopa near end of Forest Rd. Fir forest. 1372 Comment
  SEINET10463756  Campanula scouleri Chesnut 1888-6-19 CHESNUT s.n. Humboldt Pilot Ridge Comment
  CAS-BOT-BC37418  Cardamine californica LeRoy Ellsworth Detling 1935-4-20 1642 Humboldt Lansdale Redwood Grove. Comment
  HSC36518  Cardamine californica J. D. Ackerman, A. M. Montalvo 1973-5-6 61 Humboldt 5 mi. from Weott on Bull Creek Flat Rd. 274 Comment
  HSC86324  Cardamine californica K. Berg, R. Bonning 1983-5-21 490 Humboldt 3.3 mi. up from Berry Summit and Hwy. 299, above road 1250 Comment
  UC1199189  Cardamine californica Joseph P. Tracy 1905-4-2 2160 Humboldt near Blue Lake; Northern Coast Ranges, near Blue Lake 30 Comment
  UC668052  Cardamine californica Joseph P. Tracy 1937-3-21 15233 Humboldt 2 mi w. Bridgeville 198 Comment
  RSA10948  Cardamine californica var. sinuata Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  SEINET202626  Carduus tenuiflorus Joseph P. Tracy 1942-6-28 17266 Humboldt 'Angel's Ranch' toward Hungry Hollow; Bald Mountain 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
  UC562426  Carex amplifolia Joseph P. Tracy 1935-6-23 13986 Humboldt French Camp Ridge 1066 Comment
  RSA167283  Carex athrostachya Joseph P. Tracy 1950-7-6 18990 Humboldt Burr Valley, NW slope of Buck Mtn 1067 Comment
  CAS-BOT-BC19213  Carex barbarae Joseph Prince Tracy 1929-6-23 8606 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC19436  Carex bolanderi Peter H. Raven; R. Snow 1958-7-20 13646 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  CHSC93263  Carex bolanderi Thomas Nelson; Jane Nelson 1977-7-1 3552 Humboldt The Lassics. Along Blanket Creek. 1493 Comment
  JEPS109248  Carex bolanderi D. W. Taylor 2007-7-11 20160 Humboldt Six Rivers National Forest, White Oak Opening, along Forest Hwy 1. Comment
  SEINET3900269  Carex breviligulata D. H. Norris 1971-7-17 19600 Humboldt Along Redwood House road about 3 miles west of intersection with Kneeland-Bridgeville road.; 0 Comment
  CHSC40174  Carex concinnoides Lawrence Janeway 1982-6-20 13 Humboldt On ne facing slope near ridgetop ca 1 mi se of Horse Mtn along rd 6N36. 1383 Comment
  HSC76383  Carex concinnoides L. P. Janeway 1982-6-20 12 Humboldt On ridge 1 mi. SE of Horse Mtn. along FS Rd. 6N36 1384 Comment
  HSC69863  Carex densa Thomas W. Nelson, Ken Hindley 1978-5-28 4086 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  JEPS25963  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Northern Coast Ranges. Phillipsville, facing South Fork of Eel River Comment
  SEINET8068029 Image available Carex harfordii A. L. Hipp 1999-1 438 Humboldt Phillipsville-Edge of 101 (Redwood Hwy), big E-turn just S. of the Miranda exit. Comment
  CAS-BOT-BC21754  Carex hassei Joseph Prince Tracy 1941-5-11 16868 Humboldt Big Lagoon. 152 Comment
  IRVC1227  Carex hendersonii R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  SEINET10650834  Carex hendersonii Joseph W. Congdon 1904-7-24 Congdon s.n. Humboldt Mariposa. Arcata. Comment
  CAS-BOT-BC28163  Carex hoodii Joseph Prince Tracy 1932-7-11 10410 Humboldt trinity Summit, Open places at Corral Prairie. Comment
  CAS-BOT-BC35564  Carex jonesii Joseph Prince Tracy 1935-7-26 14257 Humboldt Trinity Summit, Meadows at Water Dog Lakes 1828 Comment
  HSC102230  Carex jonesii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1151 Humboldt Patterson Meadows 1555 Comment
  HSC102201  Carex leptopoda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1115 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  JEPS79830  Carex luzulina Joseph P. Tracy Jul 16 1930-Jul 19 1930 8987 Humboldt South Fork Mountain at McKay Camp, Northern Coast Ranges South Fork Mountain; Northern Coast Ranges, South Fork Mt., McKay Camp 1676 Comment
  UC1103587  Carex luzulina var. luzulina Joseph P. Tracy 1933-7-16 12771 Humboldt South Fork Mountain, McKay Camp Northern Coast Ranges 1676 Comment
  JEPS79958  Carex mariposana Joseph P. Tracy 1936-6-17 14954 Humboldt lower foothills of nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  CAS-BOT-BC32130  Carex multicaulis Joseph Prince Tracy 1933-7-11 12662 Humboldt Horse Mountain. 1432 Comment
  HSC26097  Carex multicostata J. O. Sawyer 1970-6-27 2303 Humboldt 1829 Comment
  UC562666  Carex multicostata Joseph P. Tracy 1935-5-25 13865 Humboldt Fort Seward 106 Comment
  CHSC106515  Carex nudata Peter F. Zika 2009-6-15 24490 Humboldt Outer North Coast Range (NCoRO). S bank of Mad River, near Hatchery Road, S of town of Blue Lake. 20 Comment
  CHSC34065  Carex nudata Joseph P. Tracy 1911-6-4 3221 Humboldt Northern Coast Region. Along Little River, 5 miles from the coast. 121 Comment
  CHSC40163  Carex nudata L. P. Janeway 1984-4-5 755 Humboldt Along the west edge of Trinity River near the Willow Creek airstrip. 137 Comment
  UCR52378  Carex nudata L. P. Janeway 1984-4-28 751 Humboldt Garberville Q., West side of the South Fork of Eel River at Butte Creek, across the river from Miranda. 75 Comment
  CAS-BOT-BC119389  Carex obnupta T. G. W. s.n. Humboldt Arcata Comment
  CHSC34066  Carex obnupta Joseph P. Tracy 1906-5-13 2459 Humboldt Northern Coast Region of California. Ocean beach at Humboldt Bay. Comment
  HSC7060  Carex obnupta W. R. Brigham 1962-4-7 22 Humboldt S of Big Lagoon Comment
  UC8071  Carex obnupta Harley P. Chandler May, 1901 1122 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  CAS-BOT-BC119378  Carex obnupta Alice Eastwood; John Thomas Howell 1937-6-23 4831 Humboldt Near Yager Comment
  CAS-BOT-BC119382  Carex obnupta Joseph Prince Tracy 1934-7-13 13381 Humboldt Arcata Bottom. 15 Comment
  UC196571  Carex obnupta Joseph P. Tracy 1916-5-31 4696 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, Holmes Flat 60 Comment
  UC562319  Carex obnupta Joseph P. Tracy 1934-7-13 13381 Humboldt North Coast Ranges, Arcata Bottom Arcata Bottom; North Coast Ranges, Arcata Bottom 15 Comment
  CAS-BOT-BC119168  Carex pansa Charles Vancouver Piper 1921-5-22 s.n. Humboldt Eureka. Comment
  UC194803  Carex pansa Joseph P. Tracy 1911-6-25 3258 Humboldt Eureka Northern Coast Region 0 Comment
  UC1115814  Carex preslii Joseph P. Tracy 1938-6-9 15878 Humboldt Dobbyn Creek 152 Comment
  JEPS79843  Carex scopulorum var. bracteosa Joseph P. Tracy 1932-7-14 10562 Humboldt Trinity Summit, Corral Prairie 1584 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-BC116940  Carex subbracteata Joseph Prince Tracy 1936-6-9 14904 Humboldt Upper Matole. 121 Comment
  CAS-BOT-BC115570  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-23 4848 Humboldt Kneeland Comment
  UC562340  Carex tumulicola Joseph P. Tracy 1935-6-23 13975 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  RSA91642  Carex tumulicola Alice Eastwood, John Thomas Howell 1937-6-23 4758 Humboldt Dinsmore s. Comment
  UC8083  Carex tumulicola Harley P. Chandler June 1901 1416 Humboldt Klamath River North Coast Ranges 335 Comment
  CAS-BOT-BC115535  Carex unilateralis Joseph Prince Tracy 1937-8-7 15618 Humboldt Bald Mountain. Wet place on Murphy Ridge. 914 Comment
  CAS-BOT-BC115536  Carex unilateralis Joseph Prince Tracy 1938-7-5 16007 Humboldt Carlotta. Wet place in open flat by old Strong's District School House, 5 mi E of town. 45 Comment
  CAS-BOT-BC114984  Carex viridula H. E. Parks 1935-9-1 5214 Humboldt Abundant in center of Dry Lagoon, south of Orick. Comment
  POM283642  Castilleja Lyman Benson 1929-7-19 1852 Humboldt Mouth of Matole [Mattole] River. Comment
  UC382597  Castilleja Joseph P. Tracy 1925-8-14 7230 Humboldt near Samoa (Samoa Sand Dunes, on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  JEPS55949  Castilleja affinis subsp. litoralis T. I. Chuang and L. R. Heckard 1968-7-3 6456 Humboldt Table Bluff Comment
  HSC56184  Castilleja applegatei Gilbert Muth 1979-8-1 12116 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  JEPS24219  Castilleja applegatei subsp. pinetorum Peter H. Raven with R. Snow 1958-7-20 13636 Humboldt 2.0 mi s junction of Titlow Hill and Friday Ridge roads (near Grouse Mountain) Comment
  HSC102121  Castilleja arachnoidea M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1025 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC35027  Castilleja attenuata Thomas W. Nelson, James Nelson 1975-5-24 1847 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC95071  Castilleja exserta subsp. latifolia Andrea Pickart 2002-7-2 148 Humboldt King Salmon Sand Spit 0 Comment
  UC673100  Castilleja exserta subsp. latifolia Joseph P. Tracy with Dr. F. W. Pennell 1940-7-6 16659 Humboldt w foot Table Bluff 6 Comment
  HSC101997  Castilleja miniata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 896 Humboldt Patterson Meadows 1555 Comment
  HSC76048  Castilleja miniata Overton, Butler 1979-8-2 12544 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC76191  Castilleja miniata Overton, Butler 1979-7-24 9792 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC199387  Castilleja pruinosa Harley P. Chandler Jun 1901 1364 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Valley 152 Comment
  UC1502112  Ceanothus R. Sutherland 1976-1-30 4 .30.76 Humboldt Pt. Delgada Quad. 990 Comment
  HSC41300  Ceanothus arcuatus Brad Klipfel 1974-7-27 499 Humboldt Horse Mtn. Comment
  HSC44432  Ceanothus arcuatus Brad Klipfel 1975-5-24 634 Humboldt Horse Mtn. Comment
  UCD19484  Ceanothus cuneatus John M. Tucker 1948-9-3 1852 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest), on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine. 1463 Comment
  CDA36149  Ceanothus cuneatus CDFA Staff Jun 1977 Humboldt Berry Summit. 0 Comment
  UCD112128  Ceanothus foliosus R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  HSC37594  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-17 0 .17575 Humboldt Along Horse Mtn. Rd 518 Comment
  CAS-BOT-BC50053  Ceanothus incanus Joseph P. Tracy 1935-5-25 13824 Humboldt Larrabee Creek, near Bosworth's 304 Comment
  HSC38377  Ceanothus incanus J. P. Smith, J. O. Sawyer 1975-4-6 8054 Humboldt Nadelos Recreation site, King Range Conservation Area Comment
  CAS-BOT-BC63725  Ceanothus integerrimus H. E. McMinn 1922-8-5 350 Humboldt Along Van Duzen River. Comment
  HSC98731  Ceanothus integerrimus Cara Witte 2007-8-9 635 Humboldt Friday Ridge Road/ 6N08. 1.5 miles north of intersection with Forest Service Road 5N09. 1383 Comment
  UC1198006  Ceanothus integerrimus Joseph P. Tracy 1937-6-26 15365 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC51144  Ceanothus lemmonii D. Haskamp; E. Sonnenblick; M. Taft 1995-4-23 38 Humboldt On rd. A16 NE of Basin Gulch campground 11 miles. On west side of road 731 Comment
  UC502957  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Willow Creek Trinity River Valley, Northern Coast Ranges 152 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
  HSC101654  Ceanothus parryi J. P. Smith, J. O. Sawyer 2011-4-23 13114 Humboldt Along Salmon Creek Rd., 1.6 miles from its junction with U.S. 101. 82 Comment
  HSC43182  Ceanothus parryi R. Sutherland 1975-7-5 9 .5775 Humboldt 244 Comment
  POM128711  Ceanothus parryi Jos. Burtt Davy, W. C. Blasdale 1899-6-11 5460 Humboldt Betw Camp Grant and Elk Prairie Comment
  CAS-BOT-BC53059  Ceanothus pumilus Doris Kildale Gillespie 1931-6-7 10603 Humboldt South Fork Mt. - Blake Lookout 1726 Comment
  CAS-BOT-BC52981  Ceanothus thyrsiflorus Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  CAS-BOT-BC52982  Ceanothus thyrsiflorus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC52989  Ceanothus thyrsiflorus A. A. Heller 1923-7-9 13782 Humboldt On grassy slopes along the grade south of Eureka Comment
  HSC37064  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 5 .28575 Humboldt Horse Mtn., N Fork Horse Mtn. Creek 457 Comment
  RSA46804  Ceanothus thyrsiflorus Doris K. Kildale 1927-3-29 3289 Humboldt Bug Creek. Comment
  UCD112726  Ceanothus thyrsiflorus J. E. Street 1950-5-28 s.n. Humboldt Eureka. Comment
  SEINET12209982  Ceanothus thyrsiflorus L. K. Henry 1971-1 s.n. Humboldt Along Rt. 36, 2 mi east of Dinsmore in Six Rivers National Forest Comment
  SEINET12211378  Ceanothus thyrsiflorus F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -305 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  UCSC000467  Ceanothus thyrsiflorus A. E. Wieslander 1931-5-21 209 Humboldt China Flat, Kneeland Comment
  OBI44963  Ceanothus thyrsiflorus var. thyrsiflorus Midred J. Cady 1938-7-14 s.n. Humboldt Near Trinidad Comment
  SEINET193159  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road 5 miles north and 2 miles east of Boynton Prairie 630 Comment
  CDA7302  Centaurea X pouzinii T. C. Fuller 1960-8-25 4975 Humboldt Pacific Lumber Company, Perrott Creek, across Eel River from Dyerville. 0 Comment
  CDA7084  Centaurea calcitrapa J. F. Hart 1963-9-17 Humboldt Whitlow, Eel River, 2 miles east of McCann. 0 Comment
  CDA7086  Centaurea calcitrapa T. C. Fuller 1960-8-25 4975 Humboldt Pacific Lumber Company, Perrott Creek, across Eel River from Dyerville. 0 Comment
  UC1222953  Centaurea cyanus Joseph P. Tracy 1948-8-8 18097 Humboldt halfway between Bridgeville and head of S. Yager Bridgeville Comment
  UC562310  Centaurium muehlenbergii Joseph P. Tracy 1931-7-27 9602 Humboldt 6 mi e Carlotta; Van Duzen River 60 Comment
  HSC74319  Cephalanthera austiniae Gail Newton 1980-7-20 1600 Humboldt Near Bell Swamps 1463 Comment
  HSC74322  Cephalanthera austiniae Gail Newton 1980-7-20 1627 Humboldt Near Bell Swamps 1426 Comment
  HSC16592  Cephalanthera austiniae D. K. Walker 1960-7-21 Humboldt West boundary of Simpson Redwood land, 1/2 mi. N of 500 A Road. Comment
  UC1198315  Cerastium glomeratum Joseph P. Tracy 1913-6-14 4123 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R. Valley, Dinsmore's Ranch 762 Comment
  UC1198316  Cerastium glomeratum Joseph P. Tracy 1921-4-24 5443 Humboldt Phillipsville Flat Northern Coast Ranges, S. Fork Eel R., Phillipsville Flat 91 Comment
  HSC89494  Cerastium glomeratum P. A. Daly 1986-2-28 56 Humboldt Trinidad Head, along trail 61 Comment
  HSC95646  Cerastium glomeratum Andrea Pickart 2002-4-3 33 Humboldt Samoa Dunes, Eureka airport, 'Superbowl 15 Comment
  HSC14611  Cercis occidentalis R. A. Rasp 1964-4-5 27 Humboldt 3 mi. past Willow Creek on Willow Creek Rd. Comment
  CAS-BOT-BC135532  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1927-4-10 7897 Humboldt Trinity River Valley, near the South Fork 182 Comment
  UC582766  Chaenactis douglasii var. douglasii Joseph P. Tracy 1935-7-30 14357 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC85700  Chamaecyparis lawsoniana Carl B. Wolf 1927-8-28 s.n. Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road, to Blue Lake. Comment
  HSC41651  Chamaecyparis lawsoniana Thomas W. Nelson 1977-10-20 3758 Humboldt Above junction of Maple Creek and Kneeland Rds. 854 Comment
  SBBG11071  Chamaecyparis lawsoniana D. E. Breedlove 1961-7-4 646 Humboldt 7 mi W of Willow Crk on US Hwy 299 521 Comment
  SBBG56423  Chamaecyparis lawsoniana M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  HSC76201  Chamerion angustifolium subsp. circumvagum Overton, Butler 1979-8-2 12521 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1122501  Chamerion angustifolium subsp. circumvagum H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quadrangle Comment
  UC144090  Chamerion angustifolium subsp. circumvagum J. P. Tracy 1903-8-9 1938 Humboldt Immediate vicinity of Eureka 0 Comment
  UC505109  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1932-7-17 10664 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1676 Comment
  HSC996  Cheilanthes gracillima D. E. Anderson 1965-4-24 3539 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  UC197915  Cheilanthes gracillima Joseph P. Tracy 1912-7-26 3841 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  CDA3058  Chenopodium ambrosioides B. F. Kemp 1957-11-8 511 -57 Humboldt Orrick. 0 Comment
  CAS-BOT-BC460963  Chenopodium atrovirens Joseph P. Tracy 1932-7-13 10500 Humboldt Trinity Summit: open places at Corral Prairie 1584 Comment
  POM225759  Chenopodium botrys P. A. Munz 1936-8-9 14334 Humboldt Williams Redwood Grove, south fork of Eel River. Comment
  RSA273388  Chenopodium botrys Thomas W. Nelson, Jane P. Nelson 1977-9-3 3724 Humboldt Along Forest Service Rd. to north of Alder Springs. 1524 Comment
  UCD98340  Chenopodium murale Joseph P. Tracy 1948-1-11 17949 Humboldt Eureka. 30 Comment
  JEPS59734  Chenopodium pumilio W. L. Jepson 1932-7-26 16400 a Humboldt Bull Creek 106 Comment
  HSC102564  Chimaphila umbellata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1551 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  SEINET3992227  Chlorogalum pomeridianum Unknown 1946-7-7 17611 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC14998  Chlorogalum pomeridianum var. pomeridianum P. E. Goddard 1901-7 44 Humboldt Hupa Valley Comment
  POM87953  Chrysanthemum leucanthemum L. R. Abrams, R. C. Bacigalupi 1922-6-25 8262 Humboldt Between Trinidad and Big Lagoon Comment
  CDA7411  Chrysanthemum segetum B. F. Kemp 1958-4-11 345 -58 Humboldt South Side Mad River near mouth. 0 Comment
  CDA7414  Chrysanthemum segetum M. R. Pryor 1948-7-19 Humboldt Henry Perrott Ranch, Loleta. 0 Comment
  CAS-BOT-BC36479  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old Coast Road at Thorn 304 Comment
  RSA46797  Chrysolepis chrysophylla Doris K. Kildale 1927-2-22 2978 Humboldt Kneeland Prarie. Comment
  UC1187352  Chrysolepis chrysophylla var. chrysophylla R. G. Skolmen 1960-10-27 11 Humboldt 3 mi ese Big Hill, Hoopa Valley Indian Reservation 1188 Comment
  CAS-BOT-BC36360  Chrysolepis sempervirens Joseph P. Tracy 1937-7-29 15583 Humboldt South Fork Mountain; barren rocky places along summit near Blake Lookout 1706 Comment
  SD42326  Circaea alpina subsp. pacifica Carl B. Wolf 1937-8-13 9253 Humboldt North Coast Range, 11 miles East of Hoopa Valley on the new road towards Trinity Summit 1524 Comment
  HSC104074  Cirsium arvense T. Collins 2002-7-31 Humboldt Six Rivers National Forest; along road cut on Hwy. 36 Comment
  CDA1114  Cirsium brevistylum T. R. Haig, T. C. Fuller 1959-6-12 2792 Humboldt 8 mi. N/ Trinidad. 0 Comment
  HSC47962  Cirsium douglasii var. breweri Brad Klipfel 1974-8-2 518 Humboldt Horse Mtn. Comment
  SEINET5506147 Image available Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 mi E of Berry Summit Comment
  UC175439  Cirsium occidentale var. candidissimum Joseph P. Tracy 1912-7-26 3854 1/2 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC286387  Cirsium occidentale var. venustum Doris K. Kildale 1925-7-2 967 Humboldt Bug Creek 792 Comment
  OBI56358  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt North Coast Ranges. Nr berry Summit on Titlow Hill Rd, 3.9 mi S of hwy 299 Comment
  UC302287  Cirsium occidentale var. venustum Joseph P. Tracy 1926-6-20 7662 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 914 Comment
  CAS-BOT-BC288720  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  JEPS2530 Image available Cirsium remotifolium var. odontolepis Jos. P. Tracy 1908-7-22 2909 Humboldt near Low Gap (ridge below Van Duzen and Mad rivers); ; Below Van Duzen & Mad Rivers, near Low Gap, Humboldt & Trinity Cos. 914 Comment
  HSC59685  Cirsium vulgare George Kirn 1977-10-30 Humboldt Near rail bridge over Elk River 6 Comment
  RSA40411  Cirsium vulgare P. A. Munz 1948-8-13 12349 Humboldt Highway 229, 21 miles E of Blue Lake 762 Comment
  UC144097  Clarkia amoena Joseph P. Tracy 1907-7-4 2584 Humboldt just n of mouth Little River; Northern Coast Ranges 320 Comment
  CAS-BOT-BC160958  Clarkia amoena subsp. amoena Doris K. Kildale 1927-7-25 3836 Humboldt Table Bluff Comment
  CAS-BOT-BC160965  Clarkia amoena subsp. amoena Lester Rowntree 1937-8-18 s.n. Humboldt Between Ferndale & Capetown Comment
  CAS-BOT-BC160972  Clarkia amoena subsp. amoena L. R. Abrams 1922-6-25 8105 Humboldt Cloverdale - Hopland Rd. Comment
  HSC36785  Clarkia amoena subsp. huntiana Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-20 2037 Humboldt 3 mi. E of Dinsmore Comment
  HSC64516  Clarkia concinna subsp. concinna J. P. Smith, Steve Selva 1970-6-14 3840 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  JEPS43694  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1936-6-10 14935 Humboldt mountain slopes w of mouth South Fork Trinity River 609 Comment
  UC144095  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy July, 1908 2762 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  CAS-BOT-BC439096  Claytonia cordifolia Harold E. Parks; Joseph P. Tracy 1949-6-25 11680 Humboldt Trinity Summit: at Box Camp 1463 Comment
  HSC70775  Claytonia parviflora subsp. parviflora R. York 1980-5-17 552 Humboldt Near Le Perron Peak 1066 Comment
  HSC96292  Claytonia parviflora subsp. parviflora J. Breton, A. Livingston 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  UC902106  Claytonia perfoliata subsp. intermontana Joseph P. Tracy 1949-6-6 18306 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC161028  Claytonia rubra subsp. depressa Joseph P. Tracy 1911-5-21 3188 Humboldt Eureka; Northern Coast Region Comment
  HSC17701  Claytonia rubra subsp. depressa D. B. Mitchell 1965-3-13 210 Humboldt 0.5 mi. N of US Coast Guard Station on Samoa Rd. Comment
  UC183593  Claytonia rubra subsp. depressa Joseph P. Tracy 1913-3-23 4027 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  HSC65469  Claytonia saxosa M. A. Baker 1980-6-8 1918 Humboldt Near Buck Flat. 1554 Comment
  HSC82021  Claytonia saxosa Thomas W. Nelson, James Nelson 1980-6-10 5398 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  HSC82185  Claytonia saxosa Thomas W. Nelson 1977-6-15 3442 Humboldt Along old road to ski area 1372 Comment
  CAS-BOT-BC443886  Claytonia sibirica Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  CHSC67764  Claytonia sibirica Vernon H. Oswald 1997-2-12 8308 Humboldt Elk Head, N end of Trinidad State Beach. Locally abundant on moist, shaded floor of Sitka spruce- red alder woodland along trail leading to the bluffs at Elk Head. 30 Comment
  HSC76598  Claytonia sibirica Teresa Prendusi 1981-7-24 474 Humboldt Near Whiteys Peak 1585 Comment
  HSC95732  Claytonia sibirica Steven Lee 2004-4-13 17 Humboldt Arcata Community Forest, along Jolly Giant Creek Rd. Comment
  JEPS109414  Claytonia sibirica D. W. Taylor 2004-6-24 19140 Humboldt Head of Madden Creek, Ammon Ridge, seepage area along logging spur road arterial to Forest Road 5N81. Comment
  UC852101  Claytonia sibirica Elizabeth Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  CAS-BOT-BC443885  Claytonia sibirica Ella Dales Cantelow 1938-10-26 2185 Humboldt Nr. Red Cap Creek, S.W. of Orleans Comment
  HSC59687  Claytonia sibirica George Kirn 1977-10-3 Humboldt Vicinity of Jolly Giant Creek, 1/4 mi. E of HSU campus 46 Comment
  RSA554591  Claytonia sibirica Walter Wisura 1993-5-9 4909 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  SEINET11942405  Claytonia sibirica Unknown 1933-1 3407 Humboldt Redwood Forest, Van Duzen River 6 mi W of Bridgeville Comment
  UC418984  Claytonia sibirica H. E. Parks May 1930 742 Humboldt Upper Van Duzen River Comment
  CAS-BOT-BC92594  Clematis ligusticifolia Henry M. Pollard 1948-7-23 s.n. Humboldt Near Orleans. Comment
  HSC83460  Clintonia andrewsiana R. N. Raynor 1935-5-22 Humboldt Ft. Seward 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
  CAS-BOT-BC499965  Clintonia uniflora Mrs. H. C. Cantelow 1939-6-5 s.n. Humboldt Near Van Duzen River, 1 1/2 miles west of Dinsmore Comment
  CHSC79480  Coincya monensis Jim Belsher 1997-2-13 1 Humboldt Collected in the lot East Southeast of the Manila Community Services District sewage pump station. 6 Comment
  UC26602  Collinsia corymbosa Schmidt Humboldt Eureka? Comment
  HSC22862  Collinsia grandiflora D. E. Anderson 1965-4-24 3534 Humboldt Along Titlow Hill Rd. Comment
  JEPS23541  Collinsia grandiflora Peter H. Raven with R. Snow 1958-7-20 13633 Humboldt grassy bald 2.8 mi s junction of Titlow Hill and Friday Ridge roads (near Grouse Mountain) Comment
  UC147862  Collinsia greenei Joseph P. Tracy 1908-6 9840 Humboldt nw slope Buck Mtn; Northern Coast Ranges, Buck Mtn 1219 Comment
  HSC101977  Collinsia linearis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 874 Humboldt Patterson Meadows 1566 Comment
  CAS-BOT-BC412799  Collinsia linearis David D. Keck 1948-7-2 5999 Humboldt Ridge east of Redwood Creek on road to Willow Creek. On US Route 299 609 Comment
  JEPS6177  Collinsia linearis Joseph P. Tracy 1934-7-18 13418 Humboldt Grouse Mtn; North Coast Ranges 1524 Comment
  JEPS6179  Collinsia linearis Joseph P. Tracy 1936-6-10 14931 Humboldt w mouth of South Fork Trinity River (mountain slopes); South Fork Trinity River 457 Comment
  HSC32323  Collinsia parviflora D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5664 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC48744  Collinsia parviflora Brad Klipfel 1973-6-10 80 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196761  Collinsia parviflora Joseph P. Tracy 1913-6-14 4122 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC22842  Collinsia rattanii D. E. Anderson, J. P. Smith, J. O. Sawyer 1970-5-10 5063 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC81603  Collinsia rattanii Thomas W. Nelson, Jane P. Nelson 1980-5-25 5265 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  UC146170  Collomia grandiflora Joseph P. Tracy 1908-6 2932 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  JEPS71031  Collomia grandiflora Milo S. Baker 1923-7-20 37 Humboldt head Yager Creek Comment
  RSA183510  Collomia heterophylla D. E. Anderson 1965-5-8 3639 Humboldt About 2 miles north of Willow Creek on road running along east side of Trinity River. Comment
  HSC16921  Collomia heterophylla D. E. Anderson 1965-5-15 3699 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. 198 Comment
  SEINET6969874  Collomia heterophylla Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1197842  Collomia heterophylla Joseph P. Tracy 1929-7-4 8611 Humboldt in open places French Camp 1066 Comment
  UC1197859  Collomia tinctoria Joseph P. Tracy 1941-8-24 17044 1/2 Humboldt openings in forest near McKay Camp; South Fork Mountain 1676 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
  UC1222613  Conium maculatum Joseph P. Tracy 1950-6-8 18768 Humboldt near Petrolia (Hills between town and ocean) Comment
  RSA246751  Conium maculatum R. F. Thorne, P. Everett 1965-8-8 35237 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  HSC25946  Convolvulus arvensis Thomas W. Nelson 1970-12-1 289 Humboldt 1 mi. N of the N Rio Dell bridge over the Eel River Comment
  NY643138  Convolvulus arvensis H. P. Chandler 06 1901 1463 Humboldt Klamath River 365.8 Comment
  CDA30705  Conyza canadensis M. K. Beyers, I. Shepardson 2009-9-13 254 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC12546  Conyza canadensis C. Kline 1970-11-15 65 Humboldt Bayside Rd., .5 mi. N of Bayside Comment
  UC165072  Conyza canadensis Joseph P. Tracy 1908-7-1 2908 Humboldt ridge between Van Duzen and Mad Rivers (near Low Gap, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  UC1199443  Conyza floribunda Joseph P. Tracy 1929-10-13 8679 Humboldt Carlotta 60 Comment
  RSA0049662  Coptis laciniata Dean Wm. Taylor 2011-5-4 21115 Humboldt Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junciton with Highway 36 734 Comment
  HSC76613  Corallorhiza maculata Teresa Prendusi 1981-6-9 185 Humboldt Near Cedar Camp 1268 Comment
  HSC99341  Corallorhiza maculata T. Jimerson, J. Pageau 1979-6-12 526 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  HSC99806  Corallorhiza maculata T. Jimerson, J. Pageau 1979-6-13 546 Humboldt Near Onion Lake, close to the town of Orleans. 549 Comment
  JEPS8448  Corallorhiza maculata Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3421 Humboldt Snow Camp Bald Mountain ridge (edge of meadow, ridge between Mad River and Redwood Creek) 1432 Comment
  UC147873  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1901-8-7 1257 Humboldt Samoa Northern Coast Region of California, region about Humboldt B 0 Comment
  UC175787  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1912-6-16 3697 Humboldt Hookton Northern Coast Region, Region about Humboldt Bay (salt marsh) 0 Comment
  CAS-BOT-BC101145  Corethrogyne filaginifolia Joseph P. Tracy 1936-8-17 15157 Humboldt Arcata Bottom 15 Comment
  CAS-BOT-BC101146  Corethrogyne filaginifolia Marcus E. Jones 1931-8-2 29133 Humboldt McKinleyville Comment
  CAS-BOT-BC212011  Cornus nuttallii Doris K. Kildale 1926-3-28 1688 Humboldt Lord Ellis Road near Bald Mt. junction 609 Comment
  CAS-BOT-BC212021  Cornus nuttallii Duart V. Brown 1947-3-25 6 Humboldt South end of Hoopa Valley Indian Reservation, near Trinity River Comment
  HSC60034  Cornus nuttallii M. A. Baker 1978-5-6 467 Humboldt Junction of Bald Hills Rd. with French Camp Rd. Comment
  HSC6415  Cornus nuttallii Lincoln Constance 1934-6-2 789 Humboldt S Fork Eel River, Bull Creek, 0.5 mi. W of mouth. Comment
  RSA46903  Cornus nuttallii Doris K. Kildale 1926-7-25 2434 Humboldt Breeland Bridge. 114 Comment
Read comments
Jul 23 2012
  JEPS50152  Cornus sericea subsp. sericea Lincoln Constance 1934-6-11 844 Humboldt trail along e. bank S. Fork Eel R., N. Dyerville Flat Bull Creek Region, S. Fork Eel R., N. Dyerville Flat Comment
  UC154053  Cornus sericea subsp. sericea Joseph P. Tracy 1901-8-2 1247 Humboldt near Hydesville; Northern Coast Region 60 Comment
  RSA273346  Cornus sessilis J. P. Smith, J. O. Sawyer, Smith 1976-5-2 8619 Humboldt 3.7 miles north of junction with State Route 299 on State Route 96. 61 Comment
  UC1052446  Cornus sessilis H. E. and S. T. Parks 1941-7-5 11492 Humboldt Hors Linto Creek Comment
  UC154068  Cornus sessilis Mrs. M. H. Manning 1902-1 Humboldt near Hupa Comment
  UC1197932  Corylus californica Joseph P. Tracy 1923-8-19 6538 Humboldt Lawrence Creek near Kneeland Prairie Comment
  UC146107  Corylus californica Joseph P. Tracy 1906-6-24 2500 Humboldt Humboldt Hill, S side North Coast Region, region about Humboldt Bay 0 Comment
  CAS-BOT-BC180305  Corylus cornuta subsp. californica Carl D. Duncan 1920-9-27 s.n. Humboldt Hoopa Comment
  CAS-BOT-BC180306  Corylus cornuta subsp. californica H. E. McMinn 1922-8-4 332 Humboldt Along Van Duzen River Comment
  HSC95923  Corylus cornuta subsp. californica Will Ferrand 2001-6-17 14 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  CHSC102885  Cotoneaster simonsii Peter F. Zika 2008-10-19 24227 Humboldt North Coast Nco. E side of Route 101, near Exit 728 for Trinidad Beach. 110 Comment
  HSC78086  Cotula australis L. P. Janeway, Amy Eisenberg 1984-4-24 744 Humboldt On N spit of Humboldt Bay; SE side of intersection of Samoa and Fairhaven Rds. and E of the willow patch Comment
  RSA34307  Cotula australis C. Kistner 1935-5-15 s.n. Humboldt Arcata Bottom. Comment
  HSC39804  Cotula coronopifolia Peter Sorensen 1976-8-6 Humboldt King Salmon Comment
  UC1192141  Cotula coronopifolia Malcolm A. Nobs, S. Galen Smith 1949-8-3 1163 Humboldt 1 mi s of Fields Landing; Eel River Valley Comment
  SFV18508  Cotula coronopifolia D. Graydon 2002-5-7 40 Humboldt Arcata. Path to McDaniel Slough. Along path to the Humboldt Bay. Comment
  UC581731  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  CAS-BOT-BC290584  Crepis capillaris Doris K. Kildale 1925-7-17 1073 Humboldt Cutten Tract - Eureka Comment
  CAS-BOT-BC291490  Crepis capillaris David D. Keck; J. Clausen 1935-6-16 3396 Humboldt Just south of Trinidad Comment
  HSC5927  Crepis capillaris J. L. Baker 1965-4-13 46 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  POM289673  Crepis capillaris Lyman Benson 1929-7-12 1798 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  HSC58320  Crepis pleurocarpa Overton, Butler 1979-8-2 12615 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC72961  Crepis pleurocarpa Gail Newton 1980-7-14 1481 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC73641  Crepis pleurocarpa M. A. Baker 1980-7-23 3136 Humboldt Near Orleans Mtn. 1859 Comment
  UC249531  Crocidium multicaule Joseph P. Tracy 1922-5-29 6075 Humboldt Sout Yager Creek Valley 762 Comment
  UC1239655  Cryptantha flaccida Joseph P. Tracy 1939-8-5 16383 Humboldt Dinsmore's 746 Comment
  UC1239656  Cryptantha flaccida Joseph P. Tracy 1937-7-19 15455 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  UC175789  Cryptantha leiocarpa Joseph P. Tracy 1910-6-5 3143 Humboldt Humboldt Bay Northern Coast Region Comment
  UC175684  Cryptantha torreyana Joseph P. Tracy 1912-7-31 3944 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  HSC55070  Cryptogramma acrostichoides G. L. Clifton, Griswold 1979-7-31 11650 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC55114  Cryptogramma acrostichoides Gilbert Muth 1979-8-1 11879 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC55144  Cryptogramma acrostichoides G. L. Clifton, Griswold 1979-8-1 12045 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC198629  Cuscuta occidentalis Joseph P. Tracy 1916-9-6 4760 Humboldt headwaters of Canoe Creek Northern Coast Ranges, Grasshopper Ridge, Canoe Creek 609 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
  UC1222262  Cynoglossum grande Joseph P. Tracy 1950-4-20 18617 Humboldt 2 mi. w. Dinsmore's (n.w. slope of Buck Mt.); Buck Mt. Comment
  UC176042  Cynoglossum grande Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3615 Humboldt near Hydesville; Northern Coast Region 30 Comment
  SACT000843  Cynosurus cristatus Malcolm Nobs, S. Smith 1949-8-3 Humboldt Marsh and bog land at the southern outskirts of Eureka. Comment
  UCD60127  Cynosurus cristatus Ray Evans 1956-7-19 s. n. Humboldt 4.5 miles northwest of Petrolia. Comment
  HSC45219  Cynosurus echinatus M. Alcasas 1978-6-3 126 Humboldt Titlow Hill Rd., 0.3 mi. from Hwy. 299 869 Comment
  HSC9519  Cynosurus echinatus R. Spellenberg 1964-6-15 418 Humboldt 7 mi. E of Redwood Creek, Hwy. 299 Comment
  HSC9520  Cynosurus echinatus True Hoyle 1967-7-24 29067 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass Comment
  UC1056066  Cynosurus echinatus J. I. Mallory 1955-6-7 114 Humboldt n end Luke Prairie; Quad. 29-B-3, n end of Luke Prairie 350 Comment
  UC1103245  Cynosurus echinatus Joseph P. Tracy 1947-6-28 17753 Humboldt Larrabee Valley 731 Comment
  UC213326  Cyperus bipartitus Joseph P. Tracy 1920-8-15 5383 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  RSA183563  Cyperus eragrostis D. E. Anderson 1963-9-29 2848 Humboldt Fish Lake. Comment
  UC1103651  Cyperus squarrosus Joseph P. Tracy 1935-5-30 13918 Humboldt Trinity R. Valley at Willow Creek (in old Clover Flat Mine workings); Trinity R. Valley, Clover Flat Mine 152 Comment
  UC302157  Cypripedium californicum Joseph P. Tracy 1926-6-27 7669 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  UC503060  Cystopteris fragilis Joseph P. Tracy 1932-7-17 10685 Humboldt head of Devil's Hole Trinity Summit; Klamath Mts. 1828 Comment
  RSA137327  Cystopteris fragilis I. L. Wiggins 1957-6-21 14138 Humboldt On east side of road, 1 mile south of Garberville Comment
  HSC14661  Cytisus scoparius N. D. Dennis 1965-4-2 1 Humboldt Corner of F and 9th St., Eureka. Comment
  RSA167272  Cytisus scoparius Joseph P. Tracy 1950-6-17 18830 Humboldt Eureka. Comment
  HSC73805  Dactylis glomerata M. A. Baker 1980-6-16 1937 Humboldt Near Monks Camp. 1097 Comment
  UC1541567  Dactylis glomerata Harold E. Parks May 1933 4307 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  CAS-BOT-BC189737  Danthonia californica Joseph P. Tracy 1932-7-10 10392 Humboldt Trinity Summit. Klamath Mountains. Corral Prairie. 1524 Comment
  UCD60985  Danthonia californica E. B. Copeland 1930-6-5 Humboldt Scotia. Comment
  CHSC35545  Danthonia californica var. californica James Payne Smith Jr. 1977-7-3 9231 Humboldt Road to Fish Lake (Forest Service Road 13N01), 3.5 miles from its junction with State Route 36. 487 Comment
  UC1152019  Danthonia unispicata Joseph P. Tracy 1951-7-26 19593 Humboldt Redwwod Creek Board Camp Mountain (extreme head, n side of mt.) Comment
  UCD61358  Danthonia unispicata A. H. Murphy 1951-6-25 73 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  CAS-BOT-BC420359  Darmera peltata Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC20254  Darmera peltata Paul Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  HSC39185  Darmera peltata D. E. Anderson, J. P. Smith 1971-6-28 - 1215 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  BLMAR238  Datisca glomerata Jennifer Anthony-Wheeler 1997-6-13 238 Humboldt King range, growing in wet seep along old queen mine rd 512 Comment
  JEPS12210  Datura stramonium W. L. Jepson 1932-7-29 16436 Humboldt Dyerville 88 Comment
  HSC59680  Daucus carota George Kirn 1977-10-1 Humboldt Eureka, open bayfront field 1/2 mi E of Hwy 255 6 Comment
  HSC21481  Daucus pusillus D. E. Anderson 1962-7-10 2247 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  UC1197350  Daucus pusillus J. P. Tracy 1901-7-29 1228 Humboldt immediate vicinity Eureka (hillside in Connick's Field) 0 Comment
  JEPS15999  Daucus pusillus W. L. Jepson 1902-6 1963 Humboldt Redwood Creek, Hupa Rd. Comment
  UC1197348  Daucus pusillus J. P. Tracy 1905-6-11 2192 Humboldt Bucksport 0 Comment
  UC164990  Deinandra corymbosa J. P. Tracy 1902-8-10 1768 Humboldt immediate vicinity Eureka 0 Comment
  UC160929  Delphinium decorum subsp. tracyi Harley P. Chandler June 1901 1289 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  HSC33057  Delphinium decorum subsp. tracyi Thomas W. Nelson 1974-5-7 1236 Humboldt Beside Kneeland Rd. 0.5 mi. N of Kneeland School Comment
  HSC96221  Delphinium decorum subsp. tracyi Eric Schori, Kazuyuki Ishimaru 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  RSA44425  Delphinium hesperium E. K. Balls, Lee W. Lenz 1956-6-12 21665 Humboldt 9.1 miles NE from Blue Lake along Hwy 299, Arcata to Willow Creek. Comment
  UC160927  Delphinium hesperium subsp. hesperium Harley P. Chandler May 1901 1252 Humboldt Redwood Belt North Coast Ranges 152 Comment
  HSC36195  Delphinium menziesii John Rehling 1975-5-15 83 Humboldt 8 mi. W of Ferndale on the Mattole Rd. Comment
  UC1196329  Delphinium nudicaule Joseph P. Tracy 1933-7-11 12684 Humboldt Grouse Mountain Northern Coast Ranges 1524 Comment
  UC1196333  Delphinium nudicaule Joseph P. Tracy 1922-5-29 6081 Humboldt rocky slopes at head Northern Coast Ranges, South Yager Creek 762 Comment
  CAS-BOT-BC121960  Delphinium trolliifolium Doris K. Kildale 1927-5-15 3300 Humboldt Petrolia Comment
  HSC100616  Delphinium trolliifolium Carl C. Marshall Apr 1887 363 Humboldt Hoopa Valley. Comment
  RSA114995  Delphinium trolliifolium E. K. Balls, Lee W. Lenz 1955-5-15 20736 Humboldt 9.9 miles SW from Fernbridge, along Old Coast road to Capetown. 503 Comment
  UC160942  Delphinium trolliifolium Joseph P. Tracy Jul 27 1908-Jul 30 1908 2712 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC45269  Delphinium trolliifolium M. Alcasas 1978-6-3 122 Humboldt Titlow Hill Rd. 0.8 mi. from Hwy. 299 1113 Comment
  UC503045  Delphinium trolliifolium Joseph P. Tracy 1927-6-5 8099 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  CAS-BOT-BC194291  Deschampsia cespitosa subsp. cespitosa Doris K. Kildale 1928-7-29 5922 Humboldt Bear River at Capetown Comment
  HSC27023  Deschampsia cespitosa subsp. holciformis Brad W. Klipfel 1973-8-17 274 Humboldt Big Lagoon Park, at the Sphagnum bog. Comment
  HSC9602  Deschampsia elongata True Hoyle 1967-7-24 29267 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass Comment
  UC38482  Deschampsia elongata Harley P. Chandler May, 1901 1175 b Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 54 Comment
  SEINET181183 Image available Deschampsia elongata Bassett Maguire, R Maguire; CB Maguire 1934-6-8 15070 Humboldt Bolling Grove State Park ; Under redwoods Comment
  UC1198795  Descurainia incana Joseph P. Tracy 1935-7-22 14128 Humboldt Corral Prairie Trinity Summit (along trail) 1584 Comment
  HSC8359  Dicentra formosa J. Sandborg, F. Sandborg May 1968 9 Humboldt Bluff Creek near Notice Creek 793 Comment
  HSC8365  Dicentra formosa Francis Winter 1960-4-23 Humboldt 4 mi. N of Dollar Ranch, on Korbel-Maple Creek Rd. 244 Comment
  UC1362284  Dicentra formosa Kingsley R. Stern 1964-6-16 2112 Humboldt 1.2 mi se Orick (vicinity Orick Dump) Comment
  RSA433573  Dicentra formosa subsp. formosa Hutchinson 1927-05 s.n. Humboldt [No location data on label] Comment
  UC1103020  Dicentra pauciflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 9019 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Range, South Fork Mountain 1676 Comment
  RSA152289  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1942-7-18 17286 Humboldt 1/2 mile N. E of Garberville 30 Comment
  UC1198178  Dichelostemma X venustum Joseph P. Tracy 1947-5-10 17683 Humboldt Miranda, along the South Fork of Eel River South Fork of Eel River 121 Comment
  UC15032  Dichelostemma capitatum J. Burtt Davy 1899-6-11 5430 Humboldt Hubbard's Station to Elk Prairie Comment
  HSC33055  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson 1974-5-7 1234 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC38095  Dichelostemma congestum Thomas W. Nelson, James Nelson 1976-5-30 2616 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC30062  Dichelostemma ida-maia Mrs. M. H. Manning May 1901 6 Humboldt near Hupa Comment
  CAS-BOT-BC501029  Dichelostemma ida-maia Peter H. Raven; R. Snow 1958-7-20 13638 Humboldt 2.0 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Mountain Comment
  JEPS5682  Dichelostemma ida-maia W. L. Jepson 1902-6 2132 Humboldt Three Creeks to Redwood Creek (near summit of grade) Comment
  RSA167431  Dichelostemma ida-maia Joseph P. Tracy, A. H. Murphy, Davis Agriculture College 1951-6-26 19568 Humboldt Vicinity of Twin Lakes and Snow Camp. Comment
  RSA21187  Dichelostemma ida-maia Carl B. Wolf 1937-8-11 9146 Humboldt North Coast Range, 3 mi W of little Van Duzen River at summit of grade - Dinsmore to Bridgeville. 762 Comment
  UC275546  Dichelostemma ida-maia Joseph P. Tracy 1923-7-4 6523 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UCSB13002  Dichelostemma ida-maia Muller, Katherine 1954-6-21 Humboldt Mad River Camp #2 on Mad River, below Ruth P.O. Comment
  HSC20641  Digitalis purpurea F. Morrell 1949-5-17 27 Humboldt Blue Lake Comment
  SD90195  Digitalis purpurea Benjamin C. Stone 1952-6-25 137 Humboldt 15 miles south of Klamath. 14 Comment
  SEINET8245388  Diplacus kelloggii Unknown 1942-5-12 2894 Humboldt at junction of Klamath and Salmon rivers, 1 mile south of Somes Bar. 152 Comment
  CAS-BOT-BC153324  Diplacus layneae Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  JEPS61826  Disporum hookeri W. L. Jepson 1932-8-8 16489 Humboldt Chaney ranch, Canoe Creek Comment
  JEPS14701  Dodecatheon jeffreyi Joseph P. Tracy 1927-8-22 8340 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1222160  Downingia bacigalupii Joseph P. Tracy with Mr. Murphy 1951-6-26 19583 Humboldt Upper Twin Lakes Comment
  CAS-BOT-BC401537  Drosera rotundifolia Doris K. Kildale 1929-8-5 8772 Humboldt Big Lagoon Comment
  HSC40018  Drymocallis glandulosa var. glandulosa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2922 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC585623  Drymocallis glandulosa var. reflexa Joseph P. Tracy 1935-7-23 14164 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  UC903191  Drymocallis glandulosa var. wrangelliana Mrs. H. P. Bracelin 1931-5-2 285 Humboldt 3.5 mi s Alton; s of Alton Comment
  HSC31442  Drymocallis lactea var. lactea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5560 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC44528  Drymocallis lactea var. lactea Brad Klipfel 1973-7-1 136 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1198834  Dudleya farinosa J. P. Tracy 1907-7-4 2581 Humboldt betw Little River and Trinidad 30 Comment
  UC203874  Dudleya farinosa Joseph P. Tracy 1918-7-1 4075 Humboldt 3 mi s point of the cape (sw slopes fronting the ocean); Cape Mendocino Comment
  HSC12028  Dysphania ambrosioides D. Santana 1970-10-18 77 Humboldt McKinleyville, Murray Rd. Comment
  CAS-BOT-BC112844  Eleocharis macrostachya Carl B. Wolf 1927-8-22 793 Humboldt Big Lagoon Comment
  HSC98584  Eleocharis macrostachya Cara Witte 2008-7-16 923 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  CAS-BOT-BC112838  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  CDA38999  Eleocharis pachycarpa Gordon Leppig 1997-6-19 449 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  POM87948  Eleocharis palustris Le Roy Abrams 8267 Humboldt Big Lagoon, south of Orick. Comment
  HSC58814  Eleocharis quinqueflora G. L. Clifton, Griswold 1979-8-1 12054 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CAS-BOT-BC451520  Elodea canadensis Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC103095  Elymus elymoides subsp. californicus Sydney Carothers 2014-7-3 19 Humboldt Six Rivers National Forest, Lassics Botanical Area, Mt. Lassic, upper north slope 1775 Comment
  UC175632  Elymus elymoides subsp. elymoides Joseph P. Tracy 1912-7-31 3933 Humboldt Buck Mountain Northern Coast Ranges (summit) 1676 Comment
  UC526782  Elymus elymoides subsp. elymoides Joseph P. Tracy Jul 16 1930-Jul 19 1930 8955 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC40394  Elymus glaucus Thomas W. Nelson, Jane P. Nelson 1976-7-26 3036 Humboldt Along ridge NW of Lassic Peak. 1707 Comment
  HSC79424  Elymus glaucus Kenneth Clark 1980-4-18 608 Humboldt Along access trail to Dead Man's Gulch. 61 Comment
  UC526798  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  UC1146679  Elymus glaucus Freed W. Hoffman 1946-5-19 1729 Humboldt Mattole River North Coast Ranges Comment
  HSC102145  Elymus glaucus subsp. glaucus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1052 Humboldt Patterson Meadows 1566 Comment
  RSA86744  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon 6 Comment
  UCD62410  Elymus glaucus subsp. virescens G. L. Stebbins Jr.; G. L. Church 1941-5-26 3106 Humboldt Just north of Little River, south of Trinidad. Comment
  HSC10938  Elymus mollis subsp. mollis J. W. Johnson 1962-4-29 1297 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  CHSC35546  Elymus multisetus James Payne Smith Jr. 1977-7-3 9256 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with State Route 36. 548 Comment
  UC526849  Elymus multisetus H. E. Parks and Joseph P. Tracy 1934-7-6 11141 Humboldt Iaqua Northern Coast Ranges 609 Comment
  UC1040574  Elymus trachycaulus L. T. Burcham 1956-7-19 342 Humboldt Northeast Capetown; along roadside and on adjacent sheep range. 365 Comment
  UC1103471  Elytrigia repens Joseph P. Tracy 1948-7-24 18077 Humboldt Eureka 30 Comment
  HSC32569  Epilobium brachycarpum Thomas W. Nelson 1973-9-3 1125 Humboldt McKeown Ranch N of Dinsmore, rocky alluvium along Mad River Comment
  UC314620  Epilobium campestre Joseph P. Tracy 1923-6-20 6341 Humboldt Miranda 91 Comment
  CDA30723  Epilobium ciliatum M. K. Beyers, I. Shepardson 2009-9-13 253 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  UCD105926  Epilobium ciliatum subsp. glandulosum J. M. Tucker 1948-9-3 1858 Humboldt Clear Lake, near junction of Friday Ridge Road and Horse Mountain-Grouce Mountain Road. Comment
  UCD105925  Epilobium ciliatum subsp. watsonii Linda M. Barker 1976-7-5 1637 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC98058  Epilobium densiflorum Cara Witte 2007-7-17 543 Humboldt White Oak Opening 1257 Comment
  UC203562  Epilobium densiflorum Joseph P. Tracy 1918-7-5 5020 Humboldt White Thorn Valley Northern Coast Ranges (in ditch) 304 Comment
  HSC99418  Epilobium hallianum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 67 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
  RSA12421  Epilobium hallianum Carl B. Wolf 1934-7-2 5872 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  UC1222850  Epilobium hallianum Joseph P. Tracy 1950-7-6 19015 Humboldt 3 mi s Burr Valley (w side of mt.); Buck Mountain 1158 Comment
  HSC70779  Epilobium minutum R. York 1980-5-17 548 Humboldt Near Le Perron Peak 1066 Comment
  HSC78650  Epilobium minutum D. K. Imper 1982-7-13 1484 Humboldt Near Chaparral Mtn. 1386 Comment
  POM225521  Epilobium minutum P. A. Munz 1936-8-13 14382 Humboldt 10 miles west of Willow Creek. Comment
  JEPS39325 Image available Epilobium oreganum Chesnut and Drew 1888-8-1 Humboldt near Grouse Creek Comment
Read comments
Jun 21 2008
  UC198612  Epilobium torreyi Joseph P. Tracy 1916-6-19 4728 Humboldt forks of Dobbyn Creek; Northern Coast Ranges 182 Comment
  HSC98770  Equisetum arvense Cara Witte 2007-8-8 622 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  UC302063  Equisetum laevigatum Joseph P. Tracy 1913-6-16 4142 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, valley of Van duzen River 762 Comment
  CAS-BOT-BC57791  Equisetum telmateia Joseph P. Tracy 1934-6-28 13268 Humboldt By Salmon Creek. 9 Comment
  CAS-BOT-BC57792  Equisetum telmateia Joseph P. Tracy 1934-6-28 13268 Humboldt By Salmon Creek. 9 Comment
  POM281805  Equisetum telmateia var. braunii Lyman Benson 1928-7-9 416 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  POM281806  Equisetum telmateia var. braunii Lyman Benson 1928-7-9 824 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  RSA44454  Eragrostis cilianensis Henry M. Pollard 1947-8-30 s.n. Humboldt Klamath River at Wilson Creek, near Orleans Comment
  HSC91918  Erechtites minimus E. Mackey 1986-7-21 Humboldt Patricks Point State Park, near Wedding Rock Comment
  CAS-BOT-BC299906  Erechtites minimus Henry M. Pollard 1948-7-21 s.n. Humboldt Near Ferrian Ranch, Orleans Comment
  HSC44089  Ericameria nauseosa var. speciosa Thomas W. Nelson, Jane P. Nelson 1977-9-3 3717 Humboldt N of Bear Creek 1494 Comment
  UC581775  Ericameria nauseosa var. speciosa Joseph P. Tracy 1929-8-18 8652 Humboldt Northern Coast Ranges, Larrabee Valley 701 Comment
  POM174061  Erigeron biolettii Joseph P. Tracy 1918-7-6 5052 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC581723  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge Comment
  JEPS41520  Erigeron foliosus var. mendocinus Lincoln Constance 1934-5-29 720 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region, Upper Look Prairie 365 Comment
  HSC39954  Erigeron glaucus Linda M. Barker 1976-6-22 1616 Humboldt 3 mi. W of Arcata Comment
  HSC5523  Erigeron glaucus J. R. Kahl 1962-5-13 34 Humboldt 2 mi. S of Trinidad along old Hwy. 101, 50 yds. from ocean Comment
  BLMAR118  Erigeron glaucus Jennifer Anthony-Wheeler 1995-4-4 118 Humboldt King range, growing on beach dunes S of 1st arch fence exclosure 6 Comment
  HSC98674  Erigeron inornatus var. inornatus Cara Witte 2008-7-10 850 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile from National Forest 1. Under powerlines. 1237 Comment
  UC1199401  Erigeron inornatus var. inornatus Joseph P. Tracy 1939-8-16 16422 Humboldt Grouse Mountain 1524 Comment
  HSC66281  Erigeron maniopotamicus M. A. Baker 1980-6-28 2499 Humboldt Near Mad River Buttes 1445 Comment
  CAS-BOT-BC214581  Erigeron philadelphicus Volney Rattan No date on label s.n. Humboldt Mad River Comment
  HSC39180  Erigeron philadelphicus D. E. Anderson, J. P. Smith 1971-6-28 - 1221 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  SEINET4005694 Image available Erigeron philadelphicus O. M. Clark 1932-1 5312 Humboldt South Eureka. Comment
  POM357558  Erigeron philadelphicus B. C. Templeton 1964-6-13 10184 Humboldt Along old Hwy. 101 near Trinidad Comment
  UC164846  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1911-7-12 3529 Humboldt Blue Lake Northern Coast Ranges, Blue Lake 60 Comment
  UCD132041  Erigeron philadelphicus var. philadelphicus P. B. Kennedy 1929-6-12 s.n. Humboldt Eureka. Comment
  HSC81654  Erigeron robustior Thomas W. Nelson, Jane P. Nelson 1980-7-13 6056 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  UC1223011  Erigeron robustior Joseph P. Tracy 1942-7-4 17371 Humboldt 2 mi w McClellan House (at Camp Desparation near the old Sweany place); McClellan Mountain 609 Comment
  UC53950  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt Klamath River 243 Comment
  CAS-BOT-BC224257  Eriodictyon californicum Belle Richardson Jackson 1939-9-1 s.n. Humboldt Between Weaverville & Eureka Comment
  HSC102097  Eriogonum compositum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1000 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC99535  Eriogonum compositum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 200 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1829 Comment
  UC55502  Eriogonum compositum var. compositum Harley P. Chandler 1901-6-1 1462 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  RSA331968  Eriogonum latifolium Dave Kelly 1985-7-28 4064 Humboldt Near Manila, Samoa Peninsula near Eureka. Comment
  UCR18930  Eriogonum latifolium Charlotte M. Hoak 1931-7-14 s.n. Humboldt Sand Dunes above Eureka 13 Comment
  RSA89772  Eriogonum latifolium P. A. Munz 1954-7-25 19870 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  RSA44506  Eriogonum luteolum H. M. Pollard 1948-8-7 s.n. Humboldt Near mouth of Camp Creek, near Orleans Comment
  HSC17446  Eriogonum nudum var. auriculatum C. B. Wolf 1927-8-30 1233 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  RSA66020  Eriogonum nudum var. auriculatum F. W. Peirson 1923-7-10 4206 Humboldt Garberville. Comment
  RSA53802  Eriogonum nudum var. nudum H. M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek. Klamath River Canyon. Comment
  UC1198140  Eriogonum nudum var. nudum Joseph P. Tracy 1930-7-4 9929 Humboldt near. on raod from Bull Creek to Mattole Windy Nip Gap 762 Comment
  HSC38522  Eriogonum nudum var. oblongifolium D. E. Anderson, J. P. Smith 1971-6-18 1076 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  UC1222336  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1950-9-22 19373 Humboldt Slate Creek Comment
  UC205641  Eriogonum roseum Joseph P. Tracy 1919-9-13 5191 Humboldt Trinity River near Willow Creek - Northern Coast Ranges, Trinity River Comment
  HSC99077  Eriogonum umbellatum var. goodmanii Cara Witte 2007-7-27 607 Humboldt Grouse Mountain area. Intersection of Forest Service Roads 4N32 and 4N32E. 1485 Comment
  RSA46683  Eriogonum umbellatum var. goodmanii Doris K. Kildale 1937-7-18 15131 Humboldt Horse Mt. Comment
  CHSC80057  Eriogonum umbellatum var. nelsoniorum L. P. Janeway; B. Castro 1996-8-4 5060 Humboldt High North Coast Ranges. Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain. 1341 Comment
  JEPS34743  Eriophyllum lanatum var. achilleoides Lincoln Constance 1934-5-26 678 Humboldt s end of Dyerville Bridge (South Fork of Eel River); Bull Creek Region, South Fork Eel River 45 Comment
  UC34183  Eriophyllum lanatum var. achilleoides Harley P. Chandler May 1901 1234 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  HSC44133  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, Jane P. Nelson 1977-7-1 3579 Humboldt W side of road N from Alder Springs, head of N Fork of Conley Creek 1463 Comment
  UC535728  Eriophyllum lanatum var. arachnoideum Eleanor Armstrong 1934-8-30 1180 Humboldt creek bed Richardson Grove 121 Comment
  CAS-BOT-BC301689  Eriophyllum lanatum var. lanceolatum Lincoln Constance; Reed C. Rollins 1942-5-12 2890 Humboldt Klamath-Siskiyou Region. Klamath River 12 miles north of Weitchpec 121 Comment
  HSC35608  Eriophyllum lanatum var. lanceolatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2020 Humboldt French Camp, Bald Hills Comment
  HSC41264  Eriophyllum lanatum var. lanceolatum Brad Klipfel 1974-7-23 457 Humboldt Horse Mtn. Comment
  HSC8467  Erodium botrys T. W. Beck 1963-4-27 40 Humboldt Camp Bauer, Korbel Comment
  UC1198961  Erodium botrys Joseph P. Tracy 1933-5-20 12239 Humboldt s of point of Cape Mendocino; Cape Mendocino 3 Comment
  BLMAR46  Erodium botrys Brad Barr June, 1982 46 Humboldt King range, Johnny Jack Ridge Comment
  HSC100484  Erodium cicutarium Carl C. Marshall Jun 1887 478 Humboldt Everywhere. Comment
  HSC8498  Erodium cicutarium Elrid H. Spinas 1948-5-15 14 Humboldt Horse Mtn. Comment
  UC642240  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1938-8-20 16125 Humboldt Alton 30 Comment
  HSC6761  Erysimum capitatum var. capitatum P. W. Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  HSC6764  Erysimum capitatum var. capitatum Lincoln Constance 1934-6-22 919 Humboldt S Fork Eel River, summit of Grasshopper Peak down Canoe Creek Rd. to Redwood Hwy., and thense N to Dyerville Comment
  RSA0008583  Erysimum menziesii Vernon H. Oswald 2000-4-3 9911 Humboldt Near the junction of New Navy Base Road and the road to Fairhaven on the North Spit of Humboldt Bay. 9 Comment
  CAS-BOT-BC153744  Erythranthe alsinoides Mrs. A. W. Kildale 1925-4-1 s.n. Humboldt Near Korbel Comment
  SEINET13693817 Image available Erythranthe dentata Noel H. Holmgren, Liew Fah Seong 1969-1 3613 Humboldt Prairie Creek Redwoods, in forest above coast near Del Norte County line Comment
  SEINET13679562 Image available Erythranthe floribunda Joseph P. Tracy 1911-1 3364 Humboldt Kobyo ranch, Along road between three creeks and mouth of willow creek. 762 Comment
  HSC38519  Erythronium californicum D. E. Anderson, J. P. Smith 1971-6-18 - 1081 Humboldt Horse Mtn. Comment
  HSC83469  Erythronium californicum R. N. Raynor 1935-4-8 Humboldt Fort Seward Comment
  HSC45265  Erythronium californicum M. Alcasas 1978-6-3 114 Humboldt Titlow Hill Rd., 1.6 mi. from Hwy. 299 1479 Comment
  HSC38788  Erythronium grandiflorum subsp. grandiflorum J. P. Smith 1976-5-30 8825 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  HSC35276  Erythronium grandiflorum subsp. grandiflorum J. D. Ackerman 1975-6-18 474 Humboldt SW slope of trinity Mtn., Grogan Hole, 6.4 mi. E of junction of Rd. 10N02 and 8N01, 20.4 mi. E of Hoopa and Hwy. 96 1677 Comment
  HSC16760  Eschscholzia californica Jack Rockwell 1962-4-29 37 Humboldt N bank of Van Duzen River, E of Hwy. 101 9 Comment
  UC35061  Eschscholzia californica Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  SEINET12104680  Eschscholzia californica E. A. York 1990-1-10 2705 Humboldt USGS Redwood Field Station, Arcata Comment
  RSA0024550  Eucephalus ledophyllus var. covillei Joseph P. Tracy 1919-9-18 5227 Humboldt Trinity Summit. 1890 Comment
  HSC103834  Eucephalus tomentellus Haggard 2000-8-22 71957 Humboldt Along US Forest Service Rd. 1, southeast of Blue Lake Comment
  UC204827  Euchiton gymnocephalus Joseph P. Tracy 1918-6-23 4958 Humboldt near Carroll place (Boynton Prairie road, around Humboldt Bay); Northern Coast Ranges, Humboldt Bay, Boynton Prairie 304 Comment
  UC562616  Euchiton gymnocephalus Joseph P. Tracy 1936-8-23 15164 Humboldt Carlotta 30 Comment
  CAS-BOT-BC310492  Euchiton sphaericus Joseph P. Tracy 1935-9-1 14752 Humboldt North Coast Ranges. Near Dyerville 91 Comment
  CAS-BOT-BC206802  Euonymus occidentalis Doris K. Kildale 1926-7-22 2417 Humboldt Metropolitan, woods near Canyon Park Comment
  HSC98779  Euphorbia crenulata Cara Witte 2008-6-27 766 Humboldt Along National Forest 1 on Kinsey Ridge. 1.5 mi. NE of intersection with 4N09. 1317 Comment
  CDA20172  Euphorbia oblongata P. Haggard 2003-6-24 PDR 069699 Humboldt Northwestern California; Horse Mtn. 0 Comment
  HSC59575  Euphorbia peplus Rick Lundquist 1979-4-24 37 Humboldt Arcata, lower Church parking lot at E end of 16th St. 46 Comment
  UC1199324  Euthamia occidentalis Joseph P. Tracy 1919-9-14 5206 Humboldt near mouth, (valley of Trinity River) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC413866  Fallopia convolvulus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC74274  Festuca californica M. A. Baker 1980-5-23 1382 Humboldt Near Buck Mtn. 1524 Comment
  UC1103702  Festuca californica Joseph P. Tracy 1923-6-3 6250 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UCD65870  Festuca californica subsp. californica P. B. Kennedy 1923-8-2 Humboldt Near grade Bluff Creek to Arcata. Comment
  CAS-BOT-BC282501  Festuca elmeri H. S. Yates 1936-6-17 5690 Humboldt South Fork Peak, lower N.W. slope of Buck Mtn. 792 Comment
  BLMAR17  Festuca idahoensis Brad Barr June, 1982 17 Humboldt King range, N facing slope, Spanish ridge Comment
  RSA12524  Festuca idahoensis C. B. Wolf 1934-7-3 5912 Humboldt 21 miles from Orick on road to Weitchpec. 152 Comment
  UC526869  Festuca idahoensis Joseph P. Tracy 1930-6-8 8729 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  UC1145212  Festuca occidentalis Joseph P. Tracy 1937-5-30 15305 Humboldt 5 mi n Blocksburg; Larrabee Creek 365 Comment
  UC525636  Festuca occidentalis Joseph P. Tracy 1932-7-17 10655 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC9947  Festuca occidentalis D. W. C 1956-4-30 Humboldt Matole River Area Comment
  CAS-BOT-BC278963  Festuca rubra David D. Keck 1948-7-1 5970 Humboldt South side of Big Lagoon Comment
  HSC65107  Festuca rubra J. P. Smith 1970-6-7 3800 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  UC33725  Festuca rubra Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5685 Humboldt Hoopa Mt. Comment
  UC526867  Festuca rubra Joseph P. Tracy 1927-6-8 8112 Humboldt Trinidad Northern Coast Region 60 Comment
  UCD66390  Festuca rubra Collector Unknown 1951-6-18 Humboldt Near Hydesville. Comment
  CAS-BOT-BC282521  Festuca subbiflora W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  HSC70481  Festuca subulata Gail Newton 1980-7-20 1632 Humboldt Near Bell Swamps 1426 Comment
  POM126171  Festuca subulata Joseph P. Tracy 1903-5-23 1899 Humboldt Alder Point, on Eel River. 244 Comment
  SEINET200341 Image available Festuca subulata Joseph P. Tracy 1936-6-17 14945 Humboldt Buck Mountain lower foothills of its NW slope 762 Comment
  UC1056065  Festuca subuliflora J. I. Mallory 1955-2-22 115 Humboldt 1 mi n Luke Prairie Quad. (Quad 29-B-2); Peavine Ridge 701 Comment
  UC180227  Festuca subuliflora Joseph P. Tracy 1913-6-10 4081 Humboldt near Strong's Station; Northern Coast Ranges, Van Duzen River 152 Comment
  CAS-BOT-BC453523  Fragaria chiloensis Joseph P. Tracy 1904-4-24 2025 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region Comment
  HSC18623  Fragaria chiloensis J. W. Johnson 1962-4-29 1300 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  RSA114996  Fragaria chiloensis E. K. Balls, Lee W. Lenz 1955-5-15 20737 Humboldt 12.6miles SW of Ferndale along Old Coast road to Capetown 259 Comment
  SD39959  Fragaria chiloensis Charlotte M. Hoak 1931-7-14 2103 Humboldt Eureka, sand dunes on bar Comment
  HSC18609  Fragaria vesca E. W. Styskel 1963-3-3 5 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  HSC23707  Fragaria vesca J. O. Sawyer 1970-6-27 2309 Humboldt Site 318. 1494 Comment
  HSC70777  Fragaria vesca R. York 1980-5-17 550 Humboldt Near Le Perron Peak 1066 Comment
  HSC99023  Fragaria vesca Cara Witte 2008-7-14 899 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC492173  Fragaria virginiana subsp. platypetala Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC41331  Frangula californica Brad Klipfel 1974-9-17 572 Humboldt Horse Mountain Comment
  HSC44359  Frangula californica Brad Klipfel 1974-9-17 574 Humboldt Horse Mtn. Comment
  CAS-BOT-BC52745  Frangula californica subsp. californica Alice Eastwood 1943-6-11 18975 Humboldt State Azalea Grove Comment
  CAS-BOT-BC59964  Frangula purshiana W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  HSC18413  Frangula purshiana J. W. Johnson 1962-4-19 1254 Humboldt Arcata, woods of the Miller Farm, Samoa Peninsula Comment
  HSC102007  Frangula purshiana subsp. purshiana M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 908 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  SBBG26941  Frangula purshiana subsp. purshiana C. B. Wolf 1937-8-13 Humboldt 11 mi E of Hoopa Valley on new rd towards Trinity summit 1524 Comment
  POM130724  Frasera albicaulis var. nitida H. P. Chandler 1901-06 1486 Humboldt Klamath River. Comment
  HSC102621  Frasera speciosa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1608 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC217698  Fraxinus latifolia Doris K. Kildale 1927-5-13 3142 Humboldt Redwood Creek at Berry's 289 Comment
  SDSU19198  Fritillaria affinis Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3008 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.2 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  CAS-BOT-BC124019  Fritillaria purdyi Carlton Elmer Purdy 1901-4-1 s.n. Humboldt Kneeland Comment
  HSC79054  Fritillaria purdyi D. K. Imper 1984-5-16 Humboldt 0.25 mi. E of Friday Camp Rd., 0.25 mi. N of junction with 6N01 1220 Comment
  UC176062  Galium ambiguum subsp. ambiguum Joseph P. Tracy 1912-7-31 3913 Humboldt near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  UCD121553  Galium ambiguum subsp. siskiyouense Frederic Hrusa 1993-6-17 11229 Humboldt Red Mountain. 1200 Comment
  UCD121621  Galium aparine Linda M. Barker 1976-6-14 1601 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  BLMAR595  Galium aparine Jennifer Wheeler 2010-7-28 595 Humboldt Lacks Creek, along Pine Ridge Road, common understory 975 Comment
  HSC57675  Galium bifolium G. L. Clifton, Griswold 1979-7-25 10875 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC175780  Galium bifolium Joseph P. Tracy 1912-7-31 3923 Humboldt near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  UC35332  Galium muricatum C. C. Marshall 1888-1 Humboldt Comment
  UC1023846  Galium triflorum Milo S. Baker 1947-8-10 11903 Humboldt near end of Forest Rd from Hoopa toward Trinity Summit Comment
  JEPS20474  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  JEPS34051  Gamochaeta ustulata Lincoln Constance 1934-5-24 627 Humboldt bordering on e side Lower Look Prairie; Bull Creek Region, South Fork Eel River 121 Comment
  CAS-BOT-BC200580  Garrya buxifolia Joseph P. Tracy 1935-7-14 14062 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC188532  Garrya elliptica Doris K. Kildale 1926-9-12 2668 Humboldt Klamath River near Requa on trail between ferry and bridge Comment
  CAS-BOT-BC188539  Garrya elliptica Alice Eastwood 1923-8-14 12321 Humboldt Samoa Comment
  HSC67592  Garrya elliptica J. P. Smith 1971-10-6 4961 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC314603  Garrya elliptica Joseph P. Tracy 1925-8-14 7231 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region 6 Comment
  CAS-BOT-BC182149  Garrya fremontii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC8399  Garrya fremontii Elrid H. Spinas 1948-5-22 37 Humboldt Horse Mtn. Comment
  UC1196892  Garrya fremontii Joseph P. Tracy 1939-8-16 16408 Humboldt Horse Mountain 1432 Comment
  SEINET10930370  Gastridium phleoides Rattan RATTAN 11475 Humboldt Hoopa Valley. Comment
  UC32666  Gaultheria ovatifolia Chesnut and Drew 1888-8-6 Humboldt Head of Redwood Creek Comment
  CAS-BOT-BC58910  Gaultheria shallon Volney Rattan 1879-6-1 s.n. Humboldt unspecified Comment
  CAS-BOT-BC58919  Gaultheria shallon Harley P. Chandler 1901-5-1 1161 Humboldt unspecified 30 Comment
  CHSC19736  Gaultheria shallon Gary J. Stebbins 1970-2-2 4 Humboldt Along U.S. 101 across from Patricks Point State Park. 38 Comment
  HSC89510  Gaultheria shallon M. Roantree 1985-4-25 3 Humboldt E side of Trinidad Head. Comment
  SBBG22058  Gaultheria shallon R. F. Thorne 1957-9-2 Humboldt Eel River, Burlington State Park, just S of Weott Comment
  JEPS66611  Gaultheria shallon W. L. Jepson 1902-6-29 1952 Humboldt Redwood Creek at Berry Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation Redwood Creek; , Berry Ranch Comment
  RSA95762  Gaultheria shallon E. K. Balls 1954-4-7 19001 Humboldt 64 miles from Bluff Creek on Hwy 299 from Willow Creek to Arcata. Origin of material: seed coll. by E.K. Balls, July 11, 1949. 152 Comment
  SEINET11996979  Gaultheria shallon F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 293 a Humboldt 2.4 mi W of US 101 on CA 169 from Klamath to Klamath Glen along Klamath River 50 Comment
  HSC55075  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11684 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC198620  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1917-9-2 4850 Humboldt Grouse Mt. Northern Coast Ranges (slopes high up) 1524 Comment
  UC562365  Gayophytum heterozygum Joseph P. Tracy 1936-8-8 15137 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC12458  Genista monspessulana F. S. Griffith 1965-4-24 115 Humboldt Near Azalea Park along N bank of Mad River. Comment
  UC902032  Gentiana sceptrum Joseph P. Tracy 1949-8-11 18457 Humboldt Snow Camp 1402 Comment
  UC1197397  Geranium bicknellii Joseph P. Tracy 1949-8-4 18422 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC8648  Geranium dissectum William J. Ferlatte 1963-5-17 51 Humboldt Waste place, near 11th and B St., Arcata Comment
  UC668044  Geranium molle Joseph P. Tracy 1933-5-19 12197 Humboldt Alton to Fortuna (along the Eel River); Eel River 15 Comment
  HSC78961  Geranium molle L. P. Janeway, K. Berg 1984-4-11 724 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  HSC99453  Geum macrophyllum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 104 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
  HSC35933  Gilia capitata subsp. capitata Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2026 Humboldt French Camp, Bald Hills Comment
  BLMAR590  Gilia capitata subsp. capitata Jennifer Wheeler 2010-7-13 590 Humboldt King range, along Panther Gap Road 792 Comment
  HSC24654  Gilia capitata subsp. pacifica R. E. Jones 1966-5-13 50 Humboldt Cape Mendocino Comment
  BLMAR597  Gilia millefoliata Jennifer Wheeler 2010-5-11 597 Humboldt Samoa Peninsula, Samoa Dunes Engangered Plant Protection Area 3 Comment
  HSC90478  Gilia millefoliata Jean Hanson 1981-5-10 131 Humboldt Indian Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90657  Gilia millefoliata Gail Newton 1982-5-5 3541 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC198642  Gilia millefoliata Joseph P. Tracy 1917-5-30 4794 Humboldt Little River Beach , Little River Beach (Northern Coast Ranges) 6 Comment
  HSC16992  Gilia tricolor J. Wendell Howe 1932-4-18 Humboldt Bridgeville to Blocksburg Rd. Comment
  CAS-BOT-BC266491  Githopsis diffusa L. R. Abrams 1918-6-16 7176 Humboldt Willow Creek Comment
  HSC14203  Glechoma hederacea A. H. Teshima 1963-4-28 26 Humboldt Roadside in porous soil near the Moonstone Beach area Comment
  HSC21496  Glehnia littoralis subsp. leiocarpa S. J. Moore 1965-4-10 1 Humboldt Dry Lagoon State Park, 100 yds from road, on beach Comment
  HSC10078  Glyceria declinata R. S. White 1965-5-19 87 Humboldt 5 mi. S of Samoa along the Samoa Rd. Comment
  BLMAR561  Glyceria elata Clara Sander 2009-8-21 561 Humboldt Lacks Creek, in a ditch near where main lacks Creek parking lot is to be 975 Comment
  HSC58634  Glyceria elata Gilbert Muth 1979-7-31 11530 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  UC187282  Glyceria elata Joseph P. Tracy 1911-7-7 3372 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC99539  Goodyera oblongifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 204 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA249356  Goodyera oblongifolia J. D. Ackerman 1973-8-18 120 Humboldt 2 miles north of Manila Comment
  UC1212573  Goodyera oblongifolia Francia Chisaki, Helen Sharsmith 1959-8-22 4757 Humboldt Inner North Coast Ranges, Happy Camp, just over line from Trinity County Happy Camp Happy Camp; Inner North Coast Ranges, Happy Camp 914 Comment
  SEINET12641404  Gratiola ebracteata Unknown 1936-1 15022 Humboldt Bald Mountain ; at "Lake Prairie in bog Comment
  UCD132548  Grindelia camporum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1179 Humboldt Around Fields Landing. Comment
  CAS-BOT-BC304740  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt Salt marsh bordering Humboldt Bay at Arcata Comment
  CAS-BOT-BC304761  Grindelia hirsutula Carl B. Wolf 1927-8-29 1214 Humboldt Devil's Gate, south of Cape Mendocino Comment
  SBBG62631  Grindelia hirsutula R. Hartwell 1938-8-5 Humboldt Mattole Rd on coast between Capetown and Petrolia, along beach Comment
  UC166461  Grindelia hirsutula Joseph P. Tracy 1909-9-19 3094 Humboldt along salt water sloghs near Samoa; Humboldt Bay Comment
Read comments
Dec 17 2011
  UC204829  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt near Garberville (in dry field) 121 Comment
  UC581777  Grindelia hirsutula Joseph P. Tracy 1930-7-5 8831 Humboldt sw slopes fronting the ocean 3 mi s of point of Cape Mendocino Cape Mendocino (on hillsides up to 500 ft elevation) 30 Comment
  RSA47124  Grindelia stricta var. stricta Doris K. Kildale 1925-7-15 1080 Humboldt Eureka Slough. Comment
  UC525561  Hackelia micrantha Joseph P. Tracy 1932-7-16 10617 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC56959  Hastingsia serpentinicola Overton, Butler 1979-7-23 9473 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  RSA93884  Helenium bolanderi F. W. Peirson 1923-7-11 3910 Humboldt 7 miles north of Arcata. Comment
  UC204746  Helminthotheca echioides Joseph P. Tracy 1918-7-1 4969 Humboldt southwestern slopes fronting the ocean three mi s of point Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC45215  Hemitomes congestum Louise Watson, Mary Lou Schreiber 1978-9-29 Humboldt West side of summit, 1/4 mi. N. of McKinleyville-Fieldbrook Rd. Bulk Collection 137 Comment
  UC718391  Hemizonella minima C. B. Wolf 1934-9-2 5861 Humboldt e Korbel; Snow Camp 914 Comment
  POM160904  Hemizonia clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt Trinity River Valley, near the South Fork. Northern Coast Ranges. 305 Comment
  JEPS14231  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad R. 15 Comment
  HSC38910  Heracleum maximum J. P. Smith 1970-6-7 3801 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC44596  Heracleum maximum Brad Klipfel 1973-7-15 192 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SD53244  Heracleum maximum Darley F. Howe 1962-5-22 3301 A Humboldt 0.5 miles north of Orick on # 101 29 Comment
  HSC13056  Hesperocyparis macrocarpa C. E. Fellows 1970-12-7 369 Humboldt HSC Campus, Arcata Comment
  HSC45914  Hesperocyparis macrocarpa Jerome Peterson 1978-4-16 3 Humboldt HSU Campus Comment
  UC169327  Heterocodon rariflorum Joseph P. Tracy 1911-7-5 3329 Humboldt near Willow Creek mouth (tributary of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC1198756  Heteromeles arbutifolia Joseph P. Tracy 1922-9-3 6107 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges 152 Comment
  CDA31699  Heterotheca oregona M. K. Beyers, I. Shepardson 2009-9-13 244 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  CAS-BOT-BC311055  Heterotheca oregona var. oregona Joseph P. Tracy 1933-10-15 13097 Humboldt Miranda, along South Fork of Eel River 121 Comment
  UC202750  Heterotheca oregona var. rudis Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  HSC58325  Hieracium albiflorum Overton, Butler 1979-8-2 12622 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC312397  Hieracium albiflorum Henry M. Pollard 1948-7-18 s.n. Humboldt Red Cap Creek near Orleans Comment
  SEINET11847693  Hieracium albiflorum J. P. Tracy 1948-1 18181 Humboldt E of Grove's Prairie near Elk Camp on Grizzly Camp Road, Trinity Summit 1524 Comment
  HSC102077  Hieracium greenei M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 979 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC275351  Hirschfeldia incana Joseph P. Tracy 1924-8-4 6739 Humboldt railroad station Eureka 0 Comment
  BLMAR44  Holcus lanatus Brad Barr June, 1982 44 Humboldt King range, lake ridge near pond Comment
  UC180229  Holcus lanatus Joseph P. Tracy 1913-6-22 4271 Humboldt opposite Buck Mountain (in valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC38600  Holcus lanatus Harley P. Chandler May 1901 1118 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  UCD84850  Holcus lanatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UCD84909  Holcus lanatus J. I. Mallory 1955-7-22 117 Humboldt Peavine Ridge, 1 mile north of Luke Prairie. 701 Comment
  CAS-BOT-BC149897  Holodiscus discolor Joseph P. Tracy 1933-8-30 13031 Humboldt Grouse Mountain 1524 Comment
  HSC18670  Holodiscus discolor Paul Shields 1955-6-10 Humboldt 3 mi. S. Weott Comment
  HSC23709  Holodiscus discolor Tim Baroni 1971-6-25 43 Humboldt Comment
  HSC57162  Holodiscus discolor Overton, Butler 1979-7-26 9962 Humboldt Near Willow Creek, close to the town of Willow Creek 1326 Comment
  HSC98777  Holodiscus discolor Cara Witte 2007-8-8 623 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  UC1198705  Holodiscus discolor Joseph P. Tracy 1912-7-31 3932 Humboldt Northern Coast Ranges, Buck Mountain near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC1198706  Holodiscus discolor Joseph P. Tracy 1932-7-18 10718 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole Head of Brett Hole; Klamath Mountains, Trinity Summit, Head of Brett Hole 1828 Comment
  UC666851  Holodiscus discolor Joseph P. Tracy 1936-8-7 15113 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  UCSC000355  Holodiscus discolor H. L. Person 1932-6-25 s.n. Humboldt E. of Korbel Korbel - Eureka Comment
  HSC74183  Hordeum brachyantherum M. A. Baker 1980-7-22 3108 Humboldt Near Grogan Hole. 1676 Comment
  SEINET200842 Image available Hordeum brachyantherum Joseph Tracy, Roland von Bothmer; 1980 1933-6-6 12508 Humboldt unspecified 9 Comment
  HSC101474  Hordeum brachyantherum subsp. brachyantherum J. P. Smith 2010-5-29 12887 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  UC1103489  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1942-6-2 17094 Humboldt 1 mi E of town Alton 18 Comment
  HSC22746  Hordeum marinum subsp. gussoneanum D. E. Anderson 1970-6-14 5124 Humboldt 2 mi. E of Mad River Bridge in Butler Valley. Comment
  UCD85874  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1925-8-29 s.n. Humboldt Eureka. Comment
  CDA20429  Horkelia tridentata P. Haggard 2002-8-5 PDR P 070940 Humboldt Northwestern California; USFS property roadside in the vicinity of Blue Lake. 0 Comment
  JEPS44551  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  SBBG3396  Hosackia crassifolia var. crassifolia H. and M. Dearing 1933-5-21 895 Humboldt 4 mi S of Orick Comment
  SEINET957086  Hosackia rosea A. M. Ottley 1914-1 4599 Humboldt Same locality as 4576. Bald Mountian between high prairie and snow camp. 1219 Comment
  CDA38356  Hydrocotyle ranunculoides W. F. Cruickshank 1961-5-27 s.n. Humboldt Arcata, Weyerhauser Lumber Co. 0 Comment
  HSC62699  Hydrocotyle ranunculoides Michelle Stevens 1979-5-18 118 Humboldt Ponds across from Clam Beach 0 Comment
  HSC57677  Hydrophyllum occidentale G. L. Clifton, Griswold 1979-7-25 10877 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  JEPS1637  Hydrophyllum tenuipes Joseph P. Tracy 1918-6-16 4954 Humboldt Eureka; Northern Coast Ranges 0 Comment
  JEPS1639  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-25 15538 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  JEPS1635  Hydrophyllum tenuipes Joseph P. Tracy 1940-5-17 16545 Humboldt flat near McClellan Ranch house; McClellan Mt. 609 Comment
  UC213008  Hydrophyllum tenuipes Joseph P. Tracy 1920-5-18 5318 Humboldt Bull Creek Northern Coast Ranges (along Eel River from South Fork to Scotia) 60 Comment
  UC502936  Hypericum anagalloides Joseph P. Tracy 1932-7-16 10607 Humboldt Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC179926  Hypericum perforatum Joseph P. Tracy 1914-9-7 4618 Humboldt On Bald Mt. near Bald Mt. House; Northern Coast Ranges, Bald Mt. 914 Comment
  CAS-BOT-BC401238  Hypericum perforatum Henry M. Pollard 1948-7-21 s.n. Humboldt Near Orleans Comment
  HSC22968  Hypericum perforatum S. V. Thompson 1967-7-23 10 Humboldt Along Boulder Creek Comment
  CAS-BOT-BC311434  Hypochaeris radicata L. R. Abrams 1916-7-11 6022 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  UC1199471  Hypochaeris radicata Joseph P. Tracy 1921-7-10 5847 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC668131 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
Read comments
Feb 27 2012
  RSA46818  Ipomopsis aggregata subsp. formosissima Doris K. Kildale 1925-2-15 1157 Humboldt Trinity Summit. Comment
  HSC13857  Iris douglasiana Elrid H. Spinas 1948-6-16 59 Humboldt Horse Mtn. Comment
  SD90155  Iris douglasiana Benjamin C. Stone 1952-6-20 116 Humboldt At Sone Lagoon, 2 miles south of Orick on Highway 101. 14 Comment
  HSC13859  Iris douglasiana S. S. Stutz 1963-5-4 34 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  UC1174757  Iris douglasiana L. W. Lenz and E. K. Balls 1956-6-12 21666 Humboldt between Willow Creek and Blue Lake (U.S. Hwy 299) 365 Comment
  UC1188258  Iris douglasiana L. W. Lenz and E. K. Balls 1956-6-12 21666 Humboldt between Willow Creek and Blue Lake (U.S. Hwy 299) 365 Comment
  UCD138708  Iris douglasiana L. W. Lenz; E. K. Balls 1956-6-12 21666 Humboldt Between Willow Creek and Blue Lake, U.S. Hwy 299. 365 Comment
  JEPS79908  Iris macrosiphon Joseph P. Tracy 1941-3-23 16808 Humboldt 3 mi w Bridgeport (near e margin of redwood belt through s Humboldt County) 198 Comment
  RSA137352  Iris purdyi Lee W. Lenz, E. K. Balls 1955-5-16 20744 Humboldt 2.7 miles northwest of Ettersburg along old Coast Road, Garbersville to Ferndale 457 Comment
  HSC44639  Iris tenuissima Diane L. Reed 1978-4-22 34 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC73242  Iris tenuissima M. A. Baker 1980-5-18 1339 Humboldt Near Black Mtn. 792 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
  RSA273404  Isatis tinctoria J. P. Smith, J. O. Sawyer 1974-6-2 7649 Humboldt Below Berry Summit on old State Route 299. 762 Comment
  UC667940  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp 1402 Comment
  UC1115831  Isopyrum stipitatum Joseph P. Tracy 1939-4-2 16207 Humboldt Kneeland Prairie 762 Comment
  HSC87619  Ixia maculata Jana Kattenhorn 1971-5-26 258 Humboldt HSU campus Comment
  UCR48590  Jaumea carnosa R. D. Goeden, Don W. Ricker 1987-9-2 870902- 18 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  CHSC96733  Juncus balticus subsp. ater Gordon Leppig 1999-10-3 1259 Humboldt Big Lagoon County Park, Big Lagoon Bog. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  UC1103049  Juncus balticus subsp. ater Joseph P. Tracy 1904-7-31 2128 Humboldt Eureka Northern Coast Region 0 Comment
  UC183674  Juncus bolanderi Joseph P. Tracy 1908-7-22 2907 Humboldt between Van Duzen and Mad Rivers (on Dinsmore's Ranch); Northern Coast Region 1066 Comment
  UC421841  Juncus breweri J. B. Davy 1899-6-30 6182 Humboldt Ferndale Comment
  HSC91873  Juncus bufonius E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  HSC67455  Juncus bufonius J. P. Smith 1971-10-9 5009 Humboldt Mad River above the Fish Hatchery. Comment
  CHSC19493  Juncus bufonius var. bufonius Norman Dennis 1965-6-19 128 Humboldt About 1/4 mile south and 1 mile east of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles southeast of Kneeland. 792 Comment
  UC1103671  Juncus bufonius var. bufonius Joseph P. Tracy 1914-5-14 4440 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC183775  Juncus covillei var. obtusatus Joseph P. Tracy 1912-7-31 3915 Humboldt near Buck Mountain summit; Northern Coast Ranges 1219 Comment
  CAS-BOT-BC110123  Juncus dudleyi Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  BLMAR659  Juncus effusus subsp. pacificus Andrew Maguire 2012-7-19 659 Humboldt Lacks Creek, Faulkner prairie 894 Comment
  RSA246771  Juncus hesperius Robert F. Thorne, Percy C. Everett 1965-8-7 35187 Humboldt Big Lagoon. 2 Comment
  HSC99530  Juncus mertensianus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 194 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1738 Comment
  HSC67457  Juncus patens J. P. Smith 1971-10-9 5034 Humboldt Mad River above the Fish Hatchery. Comment
  HSC85846  Juncus phaeocephalus var. phaeocephalus L. P. Janeway 1983-9-24 698 Humboldt S side of Big Lagoon at county camp ground, 10-30 ft. from water line 3 Comment
  UC183779  Juncus saximontanus Joseph P. Tracy 1912-7-31 3911 Humboldt near Buck Mountain summit; Northern Coast Ranges 1219 Comment
  HSC4845  Kalmia polifolia J. O. Sawyer 1968-9-27 727 Humboldt Near Waterdog Lakes and N Trinity Mtn. 1768 Comment
  CAS-BOT-BC235877  Keckiella corymbosa Joseph P. Tracy 1920-8-15 5360 Humboldt Klamath River, at Bluff Creek 152 Comment
  CAS-BOT-BC235883  Keckiella corymbosa Joseph P. Tracy 1937-7-11 15422 Humboldt Vicinity of Garberville 121 Comment
  JEPS11137  Keckiella corymbosa W. L. Jepson 1936-8-8 17864 Humboldt Hartsook; South Fork Eel River Comment
  UC582862  Keckiella corymbosa P. A. Munz 1936-8-9 14328 Humboldt 5 mi n Humboldt-Mendocino County line (south fork of Eel River); Eel River Comment
  JEPS36746  Lactuca serriola Joseph P. Tracy 1926-9-6 7794 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET11811175  Lactuca serriola J. P. Tracy 1949-1 18403 Humboldt Trinity River valley, at Willow Creek 152 Comment
  HSC77914  Landoltia punctata Daniel V. Richards 1981-8-20 103 Humboldt N Clam Beach Pond, E side of Hwy. 101 near Cranell exit. Comment
  UCR122362  Lapsana communis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6990 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
  SD50731  Lapsana communis Darley F. Howe 1959-8-14 Humboldt 86 miles west of Weaverville on Highway 289. 305 Comment
  HSC5139  Lasthenia californica D. E. Anderson 1963-5-19 2466 Humboldt Kneeland Area Comment
  UC169320  Lasthenia californica subsp. californica Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3626 Humboldt between Hydesville and Alton; Hydesville 30 Comment
  UC1199083  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1922-4-30 6010 Humboldt near The South Fork; Trinity River Valley 182 Comment
  RSA0049750  Lathyrus littoralis Dean Wm. Taylor 2013-5-9 21346 Humboldt Highway 101 about 5 road miles South of Orick, beach west of the highway, opposite Freshwater Lagoon 2 Comment
  RSA246791  Lathyrus littoralis Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35310 Humboldt Big Lagoon 3 Comment
  HSC62924  Lathyrus littoralis J. M. DiTomaso 1979-4-22 913 Humboldt Big Lagoon, 8 mi. N of Trinidad Comment
  RSA406671  Lathyrus littoralis Charlotte M. Hoak 1931-7-14 s.n. Humboldt Sand dunes above Eureka City. Comment
  HSC101985  Lathyrus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 883 Humboldt Patterson Meadows 1566 Comment
  UC15342  Lathyrus nevadensis var. nevadensis State Survey 1800-1 Humboldt Comment
  HSC45101  Lathyrus sphaericus R. Sutherland 1978-5-12 4 .12578 Humboldt McKee Flat 288 Comment
  SDSU4206  Lathyrus sulphureus D. F. Howe 1962-5-21 3298 Humboldt 16 miles north of Garberville on #101. 61 Comment
  UC931755  Lathyrus vestitus C. L. Hitchcock 1949-6-7 19083 Humboldt 0.5 mi s Pepperwood (along Highway 101) Comment
  JEPS55330  Lathyrus vestitus var. ochropetalus W. L. Jepson 1902-6-24 1930 Humboldt Korbel to Angel's Ranch (n Humboldt County) Comment
  UC931759  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-8 19092 Humboldt 4 mi w Willow Creek town (near Willow Creek National Forest Camp) Comment
  HSC26331  Layia carnosa Thomas W. Nelson 1971-4-16 381 Humboldt On dunes along the Samoa Peninsula adjacent to the Coast Guard Station Comment
  HSC90659  Layia carnosa Gail Newton 1982-5-5 3542 Humboldt Elk River Wildlife Area, Eureka. Comment
  POM318724  Leontodon leysseri Patricia Wilder 1968-8-21 4397 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC38940  Leontodon saxatilis subsp. saxatilis Linda M. Barker 1976-5-13 1488 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC98043  Lepidium campestre Cara Witte 2007-7-17 538 Humboldt Along National Forest 1. 1 mile south of Brays Opening. 1447 Comment
  CHSC33025  Lepidium didymum James P. Smith 1973-5-26 6876 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  UC552286  Lepidium virginicum Joseph P. Tracy 1933-8-22 12992 Humboldt Mouth of Eel River North Coast Ranges 3 Comment
  CAS-BOT-BC13038  Lepidium virginicum var. menziesii C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley. Comment
  RSA43876  Lepidium virginicum var. pubescens H. M. Pollard 1947-8-4 s.n. Humboldt Orleans Hotel grounds. Comment
  UC581779  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  HSC32510  Lessingia nemaclada Thomas W. Nelson 1973-9-3 1137 Humboldt E of Dinsmore beside Hwy. 36 Comment
  CAS-BOT-BC334619  Leucanthemum vulgare L. R. Abrams; R. Bacigalupi 1922-6-25 8262 Humboldt Between Trinidad and Big Lagoon Comment
  POM266015  Lewisia cotyledon var. howellii Lincoln Constance, Reed C. Rollins 1942-5-12 s.n. Humboldt Mouth of Bluff Creek, 6 miles NE of Weitchpec. 152 Comment
  JEPS5878  Lewisia triphylla Joseph P. Tracy 1935-7-24 14178 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  CAS-BOT-BC283515  Leymus X vancouverensis Malcom A. Nobs; S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, ca 2 miles N of Eureka Comment
  UC682047  Leymus mollis subsp. mollis G. L. Stebbins Jr. and G. L. Church 1941-5-26 3105 Humboldt s Trinidad; Little River Comment
  RSA295817  Leymus vancouverensis Lyman Benson 1929-7-15 1818 Humboldt Clam Beach, Trinidad Comment
  JEPS17502  Ligusticum apiifolium J. P. Tracy 1900-10-7 971 Humboldt Eureka Comment
  HSC76407  Ligusticum californicum Teresa Prendusi 1981-7-24 456 Humboldt Near Whiteys Peak 1585 Comment
  RSA168923  Lilaea scilloides Joseph P. Tracy 1950-6-18 18844 Humboldt Cape Mendocino, near the ocean shore, south of point of the Cape: Davis Creek. 3 Comment
  UC13798  Lilium columbianum Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  CAS-BOT-BC508390  Lilium columbianum V. Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  HSC89438  Lilium columbianum P. A. Daly 1984-6-16 28 Humboldt Open bluffs of Trinidad Head trail 61 Comment
  HSC15574  Lilium kelloggii D. G. Hauger 1967-7-15 12 Humboldt Kneeland Rd, 0.25 mi. from Kneeland Post office Comment
  UC1198235  Lilium pardalinum Joseph P. Tracy 1924-7-4 6714 Humboldt Snow Camp; Northern Coast Ranges 1371 Comment
  UC666956  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC1198236  Lilium pardalinum Joseph P. Tracy 1914-7-4 4528 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC56955  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-23 9465 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  CAS-BOT-BC132967  Lilium rubescens Alice Eastwood; John Thomas Howell 1937-6-22 4730 Humboldt Near Alder Point Comment
  HSC63174  Lilium rubescens M. A. Baker 1979-7-10 1020 Humboldt S of Dragsaw Spring along USFS Rd. 13N01 Comment
  JEPS99290  Lilium rubescens H. and M. Dearing 1939-6-27 3730 Humboldt near Dinsmore (Van Duzen River) 730 Comment
  UC1198228  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1947-7-9 17863 Humboldt Horse Mountain 1432 Comment
  OBI12584  Limnanthes douglasii Carl B. Wolf 1937-6-14 8818 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  HSC100568  Limnanthes douglasii Carl C. Marshall Jun 1887 68 Humboldt Damp soils throughout Humboldt. Comment
  HSC15789  Limnanthes douglasii Francis Winter 1960-5-7 Humboldt 3 mi. NE of Redwood Creek Ranch. 610 Comment
  UC249575  Limnanthes douglasii Joseph P. Tracy 1921-4-24 5476 Humboldt Phillipsville Northern Coast Ranges (slopes facing South Fork of Eel River) 121 Comment
  HSC15785  Limnanthes douglasii subsp. nivea Jack Rockwell 1962-5-4 50 Humboldt E of road along stream bank. 488 Comment
  UCD98509  Limonium californicum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1203 Humboldt Salt marshes bordering Humboldt Bay, about 2 miles north of Eureka. Comment
  UC1198572  Linanthus bicolor Joseph P. Tracy 1906-5-6 2437 Humboldt near Hydesville; Wolverton Gulch 60 Comment
  UC52822  Linanthus ciliatus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC1197836  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1936-8-2 15063 Humboldt French Camp Ridge 1066 Comment
  POM203675  Linaria vulgaris I. L. Wiggins 1932-7-19 5890 Humboldt Roadside near Trinidad Head, Comment
  RSA0087553  Linnaea borealis subsp. longiflora Carl B. Wolf 1937-8-13 9265 Humboldt North Coast Range, 12 mi. E of Hoopa Valley on new road towards Trinity Summit. End of road at present - sign says Trinity Summit 8 mi. 1676 Comment
  HSC46136  Linum bienne J. P. Smith 1971-10-6 4964 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS19999  Lipocarpha micrantha Joseph P. Tracy 1931-9-7 9650 A Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  RSA12555  Listera caurina Carl B. Wolf 1934-7-2 5884 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  UC14967  Listera caurina Joseph Burtt Davy 1899-6-19 5648 Humboldt near top of Ridge Hoopa Mt. Comment
  UC1103027  Listera cordata Joseph P. Tracy 1923-6-24 6361 1/2 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC303141  Listera cordata Joseph P. Tracy 1925-4-5 6956 Humboldt Kneeland Road crossing Northern Coast Ranges, Lawrence Creek 609 Comment
  UC54688  Lithocarpus densiflorus P. E. Goddard 1901-7-6 46 Humboldt Hupa Comment
  CAS-BOT-BC36148  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-8-22 2569 Humboldt Bald Hills, east end of Tomlinson's prairie 716 Comment
  CHSC35521  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson; Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, east side of junction of Knreeland and Maple Creek roads. 670 Comment
  POM106448  Lithocarpus densiflorus var. densiflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  RSA247208  Lithocarpus densiflorus var. densiflorus Gary D. Wallace 1971-7-28 946 Humboldt Along King Range Co. Rd. ca. 4 mi SE of Shelter Cove. Comment
  UC667090  Lithophragma campanulatum Joseph P. Tracy 1935-7-24 14191 Humboldt near Ranger Station Trinity Summit 1828 Comment
  CAS-BOT-BC342350  Logfia gallica Henry M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  UC180203  Logfia gallica Joeseph P. Tracy 1914-5-14 4467 Humboldt Fort Seward 121 Comment
  UC249793  Lolium perenne Joseph P. Tracy 1923-8-25 6539 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC50504  Lolium perenne Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6204 Humboldt Arcata; Russ Ranch Comment
  SEINET200743  Lomatium dasycarpum Joeseph P. Tracy 1923-6-27 6380 Humboldt Trinity River Valley, near the South Fork 183 Comment
  HSC36190  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1898 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  UC1103401  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1924-3-9 6610 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC56225  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-8-2 12261 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC97637  Lomatium macrocarpum Cara Witte 2007-5-21 58 Humboldt Board Camp Mountain. 1/2 mile south of intersection with 4N38 and National Forest 1. 1427 Comment
  HSC98775  Lomatium macrocarpum Cara Witte 2008-6-9 695 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  CDA38337  Lomatium nudicaule Kaylea Eickhoff, Cara M. Witte 2005-6-3 1 Humboldt White Oak Opening, 19.3 miles south of Hwy. 299 on NF1. Comment
  JEPS14248  Lomatium tracyi Joseph P. Tracy 1933-7-25 12895 Humboldt Grouse Mountain; ; Grouse Mt. 1524 Comment
  HSC32917  Lomatium utriculatum Thomas W. Nelson, James Nelson 1973-5-28 965 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA99375  Lonicera hispidula var. vacillans F. W. Peirson 1926-7-13 7054 Humboldt Near Blue Lake, Mad River. Comment
  HSC3922  Lonicera involucrata var. ledebourii C. B. Wolf 1927-8-29 1204 Humboldt Near mouth of Bear River, Capetown. Comment
  RSA89763  Lonicera ledebourii P. A. Munz 1954-7-25 19879 Humboldt behind dunes. Comment
  SEINET5736924 Image available Lotus Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6108 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 4.5 miles to collection site. Comment
  UC162836  Lotus aboriginus J. P. Tracy 1905-9-3 2389 Humboldt immediate vicinity Eureka 0 Comment
  HSC48615  Lotus corniculatus Mark Flippo 1978-5-23 68 Humboldt Mckinleyville, Bella Vista Rd. Comment
  HSC98124  Lotus corniculatus Cara Witte 2007-6-28 386 Humboldt Forest Service Road 5N10. Approximately 1/2 mile east of intersection with 5N10D. 1426 Comment
  UCD106722  Lotus corniculatus S. P. Lynch 1975-6-19 1368 Humboldt Along U.S. Hwy 101 at Loleta. Comment
  HSC98072  Lotus crassifolius var. crassifolius Cara Witte 2007-7-12 520 Humboldt Along Forest Service Road 5N10. 1.25 miles south of intersection with 5N41. 1283 Comment
  JEPS84908 Image available Lotus douglasii W. L. Jepson 1902-8-13 1979 Humboldt Three Creeks to Willow Creek (forest on mt. side); ; Three Creeks, to Willow Creek, Humboldt Co. 762 Comment
  SEINET8721487 Image available Lotus formosissimus H. E. Parks, S. T. Parks 1952-1 s.n. Humboldt Spruce Cove, Trinidad. Comment
  UC1197307  Lotus humistratus Joseph P. Tracy 1929-4-28 8546 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA168892  Lotus oblongifolius Joseph P. Tracy 1936-6-3 14856 Humboldt Lack Pond, in Trinity River Valley, opposite mouth of Willow Creek. Comment
  UC1197314  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1932-7-13 10519 Humboldt Corral Prairie Klamath Mountains 1524 Comment
  UC1223424  Lotus pinnatus Joseph P. Tracy 1942-6-15 17134 Humboldt Englewood Prairie Comment
  UC303190  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6271 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UCD106707  Lotus uliginosus R. Tofsrud 1948-7-1 s.n. Humboldt Between Fields Landing and Loleta. Comment
  UC162850  Lotus wrangelianus Joseph P. Tracy 1906-7-4 2521 Humboldt near Hydesville (on gravel bar of Yager Creek); Northern Coast Region, Yager Creek 60 Comment
  HSC57120  Luina hypoleuca Overton, Butler 1979-7-25 9865 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC74666  Luina hypoleuca Gail Newton 1981-8-7 2423 Humboldt Near Bug Creek Butte 1244 Comment
  UC198627  Luina hypoleuca Joseph P. Tracy 1917-9-2 4839 Humboldt Grouse Mountain Northern Coast Ranges 1524 Comment
  RSA254752  Lupinus Thomas W. Nelson, James Nelson, A. Nelson 1973-5-28 955 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1223294  Lupinus adsurgens Joseph P. Tracy 1938-6-17 15970 Humboldt Bull Creek-Mattole Road top of ridge near Panther Gap; top of ridge near Panther Gap, Bull Creek-Mattole Road Comment
  UC503010  Lupinus affinis Joseph P. Tracy 1932-5-1 9877 Humboldt vicinity Garberville; Northern Coast Ranges, vicinity of Garberville 121 Comment
  SEINET202281  Lupinus albicaulis Joseph P. Tracy 1937-8-12 15656 Humboldt Snow Camp. 1402 Comment
  UC1223274  Lupinus albicaulis var. shastensis Joseph P. Tracy 1940-7-14 16687 Humboldt Wilder Ridge Comment
  UC1129354  Lupinus arboreus H. L. Person 1932-7-18 Humboldt Freshwater; Eureka Quad. Comment
  SEINET10452623  Lupinus arboreus Mary Susan Taylor 1982-10-24 Taylor 5183 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  RSA407035  Lupinus arboreus var. arboreus M. B. Dunkle 1936-8-18 4820 Humboldt Moonstone Beach. Comment
  HSC73959  Lupinus bicolor Gail Newton 1980-6-7 131 Humboldt Near Brush Mtn. 1128 Comment
  HSC14800  Lupinus bicolor Eugene Andreuccetti 1964-4-26 20 Humboldt 1 mi. N of Garberville on Hwy. 101 Comment
  HSC103944  Lupinus elmeri A. Thoele, Sydney Carothers 1995-7-14 56 Humboldt Six Rivers National Forest; .6 mi. south of intersection of Forest Route 1 & Rd. 3N06, on the edge of Route 1. 1720 Comment
  UC157019  Lupinus formosus Joseph P. Tracy 1904-7-4 2113 Humboldt Bucksport; region about Humboldt Bay, Bucksport 0 Comment
  JEPS82235  Lupinus lapidicola Roger Raiche 1983-7-19 30538 Humboldt King Range, Saddle Mountain, King Ridge Trail Rd. Saddle Mountain; King Range, , King Ridge Trail Rd. 853 Comment
  UC168977  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-6-9 3663 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  RSA12559  Lupinus latifolius var. latifolius Carl B. Wolf 1934-7-2 5880 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  UC503015  Lupinus latifolius var. viridifolius Joseph P. Tracy 1929-7-4 8624 Humboldt French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  HSC90754  Lupinus littoralis Gail Newton 1982-5-5 2534 Humboldt Elk River Wildlife Area, Eureka. Comment
  SDSU4988  Lupinus littoralis D. F. Howe 1962-5-22 3259 Humboldt 0.5 miles north of Orick on #101. 30 Comment
  UC1223254  Lupinus littoralis Joseph P. Tracy 1938-6-16 15940 Humboldt Brainards Point, along highway between Eureka and Arcata Comment
  OBI36369  Lupinus nanus David J. Keil 1983-7-1 17271 Humboldt Ca. 13 mi W of jctn US 101 along Bull Creek Flats rd Comment
  SJSU10768  Lupinus nanus R. D. Spadoni 1965-5-1 95 Humboldt c. 20 mi SE of Bridgeville on State Rte 36 Comment
  RSA0084061  Lupinus obtusilobus Jane P. Nelson 1974-5-27 1318 Humboldt Mendocine National Forest near Mendocino Pass. 1524 Comment
  UC157015  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1906-6-24 2495 Humboldt near Fields Landing; Northern Coast Region, Region about Humboldt Bay 0 Comment
  UC176608  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1913-6-25 4335 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in the valley of the Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC503017  Lupinus rivularis Joseph P. Tracy 1927-6-18 8189 1/2 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  UC503019  Lupinus rivularis Joseph P. Tracy 1927-6-18 8189 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  HSC57899  Lupinus tracyi Overton, Butler 1979-7-31 11479 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC14132  Luzula comosa Gerald T. Rood 1962-5-6 15 Humboldt Kneeland Rd. 1 mi. W of Barry Rd. Comment
  HSC40405  Luzula comosa Linda M. Barker 1976-3-22 1344 Humboldt 3 mi. W of Arcata Comment
  UC2983  Luzula comosa Harley P. Chandler May, 1901 1159 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay Comment
  HSC61636  Luzula comosa Ruby Van Deventer 1959-6-29 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  CHSC117678  Luzula macrantha Peter F. Zika 2011-7-3 25500 Humboldt Titlow Hill Road, near junction with Forest Road 6N36, 1 air mile S of Horse Mountain, Outer North Coast Ranges. 1410 Comment
  UC183777  Luzula macrantha Joseph P. Tracy 1901-5-12 1087 Humboldt At Eureka; Northern Coast Region 0 Comment
  POM126143  Luzula parviflora Joseph P. Tracy 1923-6-24 6360 Humboldt Bald Mountain. In cold wet meadow near High Prairie. 1067 Comment
  SEINET3151058  Luzula subsessilis D. E. Anderson 1965-5-1 3565 Humboldt along hwy 96, 1.9 mi. N of Willow Creek 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
  CHSC96729  Lycopodium clavatum Gordon Leppig 2004-2-3 2129 Humboldt The Pacific Lumber Company land. UTM Zone 10 0411778E, 4516248N. 300 Comment
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Jan 21 2014
  UCD135966  Lycopodium clavatum K. Niles 1950-10-1 s.n. Humboldt Loleta. Comment
  CHSC26464  Lysichiton americanus J. Detzer 1977-4-8 4 Humboldt S end of Patricks Point State Park, ca. .2 mi w of Hwy. 101 and 5 mi n of Trinidad. 60 Comment
  UC505105  Lythrum hyssopifolia Joseph P. Tracy 1927-8-7 8321 Humboldt opposite mouth of Willow Creek (Lack Pond, in Trinity River Valley); Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  UC524124  Lythrum hyssopifolia Ira L. Wiggins 1932-7-19 5889 Humboldt about 8 mi n of Arcata (near Clam Beach) Comment
  RSA0015872  Lythrum hyssopifolia Joseph P. Tracy 1927-8-7 8321 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  RSA0015875  Lythrum hyssopifolia H. M. Pollard 1945-8-28 s.n. Humboldt Near Harley place. Comment
  RSA94392  Madia anomala F. W. Peirson 1926-7-14 7067 Humboldt Redwood Camp, Lower Eel River Comment
  POM284991  Madia citriodora Lyman Benson 1929-7-12 1791 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  SBBG28041  Madia elegans L. Constance, R. C. Rollins 1942-5-11 Humboldt Hoopa Valley 5 mi S of Hoopa 121 Comment
  UC1223210  Madia elegans Joseph P. Tracy 1947-7-9 17827 Humboldt Horse Mountain 1066 Comment
  HSC38099  Madia exigua Thomas W. Nelson, James Nelson 1976-5-30 2622 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC344356  Madia exigua Carl B. Wolf 1937-6-19 8910 Humboldt Van Duzen River, 3/10 mi. above Bridgeville 121 Comment
  UC166101  Madia exigua Joseph P. Tracy 1908-6 2815 Humboldt opposite Buck Mountain (Valley of the Van Duzen River); Northern Coast Ranges 762 Comment
  JEPS19928  Madia gracilis Lincoln Constance 1934-5-29 711 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  JEPS7504  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt at Corral Prairie Trinity Summit 1584 Comment
  HSC44087  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1977-9-3 3725 Humboldt N of Alder Springs 1555 Comment
  UC175195  Madia gracilis Joseph P. Tracy 1913-6-22 4258 Humboldt Dinsmore's Ranch; Valley of Van Duzen River, Buck Mountain 762 Comment
  UC495632  Madia gracilis Joseph P. Tracy 1932-7-13 10494 Humboldt at Corral Praire; Trinity Summit, Klammath Mountains 1524 Comment
  POM362191  Madia madioides M. O'Mera 1974-7-1 541 Humboldt Kneeland, Barry Ridge, just off ridge Comment
  CAS-BOT-BC508513  Maianthemum dilatatum Ira L. Wiggins 1957-6-19 14131 Humboldt Trinidad Comment
  RSA24195  Maianthemum dilatatum Carl B. Wolf 1941-3-1 9978 Humboldt 4 miles northeast of Strongs Station (Van Duzen River) on Rd. to Yager 152 Comment
  RSA41939  Maianthemum dilatatum H. C. Cantelow 1935-5-30 s.n. Humboldt 8 miles north of Orick Comment
  SEINET12044316  Maianthemum dilatatum H. E. Parks 1932-1 4289 Humboldt Bishop Pine Lodge, Trinidad Comment
  HSC44336  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1975-6-17 675 Humboldt Horse Mtn. Comment
  HSC48830  Maianthemum racemosum subsp. amplexicaule Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 40 Humboldt Grogan's Hole near N Trinity Mtn. 1829 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
  CAS-BOT-BC511454  Maianthemum racemosum subsp. amplexicaule Doris K. Kildale 1926-3-26 1640 Humboldt Old Fortuna road 609 Comment
  RSA377681  Maianthemum racemosum subsp. amplexicaule W. Hutchinson s.n. Humboldt [no locality specified] Comment
  BLMAR283  Maianthemum stellatum Jennifer Anthony-Wheeler 1999-4-28 283 Humboldt King range Comment
  HSC45240  Maianthemum stellatum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3509 Humboldt Alder Springs 1524 Comment
  RSA95019  Malacothrix floccifera F. W. Peirson 1923-7-9 3933 Humboldt Humboldt County State Park Comment
  UC154239  Malus fusca J. P. Tracy 1909-5-2 2954 Humboldt immediate vicinity Eureka 0 Comment
  RSA178549  Malus sylvestris Joseph P. Tracy 1950-4-23 18636 Humboldt Trinity River Valley, at Willow Creek. Comment
  CHSC46935  Marah oregana Robert A. Schlising 1963-6-4 2583 Humboldt Patrick Point State Park. Comment
  HSC59579  Marah oregana Rick Lundquist 1979-5-23 103 Humboldt 3.4 mi. up Fickle Hill Rd. from 11th St. 274 Comment
  HSC89517  Marah oregana M. Roantree 1985-6-11 91 Humboldt E side of Trinidad Head Comment
  HSC95680  Marah oregana Steven Lee 2004-4-11 16 Humboldt About 1 mi. N of Scenic Dr., Houda Point. Off of Hwy. 101, Westhaven. Comment
  HSC39795  Matricaria discoidea Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  UC1223204  Matricaria discoidea Joseph P. Tracy 1942-7-1 17368 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  HSC98388  Medicago lupulina Jana Kattenhorn 1970-10-28 144 Humboldt Mad River Bottoms, N Bank off Essex, off Hwy. 299 Comment
  UC16095  Medicago polymorpha J. Burtt Davy 1899-6-15 5531 Humboldt around Scotia; North Coast Ranges Comment
  HSC45094  Medicago polymorpha R. Sutherland 1978-5-16 3 .16578 Humboldt Redwood Creek 143 Comment
  SEINET202035  Melica aristata Joseph P. Tracy 1948-8-10 18157 Humboldt Trinity summit. On ridge 2 mi. east of Grove's Prairie. Comment
  CAS-BOT-BC269349  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 182 Comment
  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
  UCD87544  Melica harfordii A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  SEINET10599425  Melica harfordii Harley P. Chandler Chandler 1477 Humboldt Klamath River. 366 Comment
  HSC74687  Melica subulata Gail Newton 1981-8-7 2441 Humboldt Near Bug Creek. 1042 Comment
  HSC75451  Melica subulata J. O. Sawyer 1980-7-18 3588 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET200622 Image available Melica subulata Joseph P. Tracy 1901-5-5 1063 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC552706  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt Dobbyn Creek; Northern Coast Ranges 152 Comment
  UCD88599  Melica subulata A. A. Beetle; G. L. Stebbins Jr. with J. P. Tracy 1942-6-2 3475 Humboldt 4 miles north of Bridgeville. Comment
  UC552688  Melica torreyana Joseph P. Tracy 1935-5-25 13887 Humboldt North Dobbyn Creek; North Coast Ranges 152 Comment
  UC673064  Melilotus albus Joseph P. Tracy 1938-7-15 16081 Humboldt Van Duzen Eel River (gravel bar at mouth) 15 Comment
  HSC26919  Melilotus albus Brad Klipfel 1973-7-30 218 Humboldt Samoa Rd., near Mad River Slough Comment
  JEPS63458  Mentha canadensis Joseph P. Tracy 1934-7-30 13501 Humboldt along coast in front of South End of Stone Lagoon Dry Lagoon; , in front of South End of Stone Lagoon 3 Comment
  JEPS79933  Mentha pulegium Joseph P. Tracy 1933-8-22 12985 Humboldt near Loleta; near Loleta 6 Comment
  UC1239695  Mentha pulegium Joseph P. Tracy 1934-8-14 13566 Humboldt Eel River Alton to Fortuna (on gravel bars); Eel River 15 Comment
  RSA600662  Mentha pulegium Louis C. Wheeler 1950-8-14 6779 Humboldt Shelter Cove. Comment
  HSC37417  Menziesia ferruginea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 516 Humboldt Along Lost Man Creek. 38 Comment
  UC582430  Microseris borealis Joseph P. Tracy 1936-6-28 15027 Humboldt Bald Mountain; at Lake Prairie. 1066 Comment
  CAS-BOT-BC322680  Microseris laciniata Volney Rattan 1879-6-1 s.n. Humboldt Unspecified Comment
  UC1199451  Microseris laciniata subsp. laciniata Joseph P. Tracy 1933-7-26 12925 Humboldt s slope Grouse Mountain (towards low creek); North Coast Ranges, s slope Grouse Mountain 1219 Comment
  HSC103080  Microseris nutans Sydney Carothers 2014-6-12 14 Humboldt Six Rivers National Forest, Lassics Botanical Area, north slope Red Lassic 1712 Comment
  SEINET200378  Microsteris gracilis J. P. Tracy 1935-7-23 14146 Humboldt Trinity Summit at Corral Prairie 1585 Comment
  HSC98700  Mimulus alsinoides Cara Witte 2007-5-22 82 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  JEPS10240  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1934-6-19 13235 Humboldt Carlotta 60 Comment
  JEPS10550  Mimulus breweri W. L. Jepson 1902-7-23 2108 Humboldt Trinity Summit 2133 Comment
  UC1196802  Mimulus breweri Joseph P. Tracy 1933-7-26 12920 Humboldt Grouse Mountain North Coast Ranges 1615 Comment
  UC162579  Mimulus cardinalis Joseph P. Tracy 1911-7-10 3480 Humboldt tributary of Trinity River (along Willow Creek near mouth); Northern Coast Ranges 243 Comment
  UC198662  Mimulus douglasii Joseph P. Tracy 1915-5-20 4639 Humboldt Eureka Northern Coast Ranges Comment
  HSC102503  Mimulus guttatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1488 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC90636  Mimulus guttatus Gail Newton 1983-6-5 3554 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC89591  Mimulus guttatus M. Roantree 1985-5-15 45 Humboldt E side of Trinidad Head, on slope above Trinidad Bay beach Comment
  UC582716  Mimulus inodorus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8983 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC60082  Mimulus kelloggii M. A. Baker 1978-5-6 500 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC102538  Mimulus moschatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1524 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC55628  Mimulus moschatus Overton, Butler 1979-7-24 9626 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC36787  Mimulus moschatus Thomas W. Nelson, Jane Nelson, James Nelson 1975-7-20 2055 Humboldt Along Forest Service Rd. 2S08 to Pine Mountain Comment
  HSC25985  Mimulus pilosus Thomas W. Nelson 1970-9-3 226 Humboldt Mad River. Comment
  HSC73738  Mimulus primuloides var. primuloides M. A. Baker 1980-7-22 3091 Humboldt Near Grogan Hole. 1676 Comment
  CAS-BOT-BC388630  Minuartia douglasii Carl B. Wolf 1937-6-14 8822 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  JEPS109807  Mitella caulescens Dean W. Taylor 2004-6-24 19138 Humboldt Head of Madden Creek, Ammon Ridge, seepage area along Forest Road 5N15 0.4 miles west of the junction with Forest Road 5N01. 1356 Comment
  UC1198868  Mitella diversifolia Joseph P. Tracy 1937-7-2 15412 Humboldt Little Hors-Linto Creek Trinity Summit (head) 1371 Comment
  UC902093  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt along trail from Hoopa to summit (near Box Camp); Trinity Summit 1524 Comment
  CAS-BOT-BC433030  Mitella ovalis V. Rattan No date on label s.n. Humboldt Unspecified Comment
  HSC102031  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 933 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC49983  Moehringia macrophylla M. A. Baker 1979-6-7 788 Humboldt N bank of road to Snow Mtn. 610 Comment
  HSC101970  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 866 Humboldt Patterson Meadows 1566 Comment
  HSC102085  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 989 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC215568  Monardella odoratissima subsp. pallida Doris Kildale Gillespie 1931-6-7 10625 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  UC32590  Monardella odoratissima subsp. pallida Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  UC1239675  Monardella odoratissima subsp. pallida Joseph P. Tracy 1942-9-6 17310 Humboldt South Fork Mountain, near McKay Camp. 1676 Comment
  UCLA62435  Monardella villosa subsp. globosa C. Epling, Wm. Robison 1935-7-24 Humboldt Dyerville Comment
  RSA0022803  Monardella villosa subsp. subserrata L. R. Abrams 1922-6-25 8221 Humboldt Camp Cemi [?], north Garberville. Comment
  UC1239680  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15429 Humboldt vicinity Garberville 121 Comment
  UC577342  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15428 Humboldt Vicinity Garberville 121 Comment
  UC63752  Monardella villosa subsp. villosa H. M. Hall Oct. 1899 Humboldt Comment
  UC21673  Monotropa hypopitys Harley P. Chandler Jun 1901 1536 Humboldt Klamath River 426 Comment
  JEPS109237  Montia howellii Stephanie Puentes 2008-4-23 Humboldt Vicinity Larabee Valley, along Horse Creek about 1 mile upstream from Hwy 36. Comment
  UC162970  Montia parvifolia Joseph P. Tracy 1908-6 2708 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC7878  Montia parvifolia Harley P. Chandler May, 1901 1261 Humboldt North Coast Ranges, Redwood Belt Redwood Belt; North Coast Ranges, Redwood Belt 152 Comment
  CAS-BOT-BC445155  Montia parvifolia Doris K. Kildale 1926-5-27 1695 Humboldt Yager Creek, near mouth Comment
  CAS-BOT-BC445156  Montia parvifolia Doris K. Kildale 1925-6-14 671 Humboldt Yager Creek near mouth Comment
  JEPS43174  Montia parvifolia Milo S. Baker 1923-7-31 143 Humboldt Butte's Run; North Coast, Butte's Run Comment
  HSC59071  Morella californica Thomas Wood 1979-5-4 153 Humboldt Big Lagoon Bog, E edge of bog 3 Comment
  UCD86796  Muhlenbergia mexicana Eleanor Armstrong 1934-1 1149 Humboldt Richardson Grove. Comment
  UCD138687  Muscari armeniacum Joseph M. DiTomaso 1976-3-28 344 Humboldt Samoa Cookhouse 3 miles northwest of Eureka. Comment
  JEPS70787  Myosotis discolor Joseph P. Tracy 1925-5-10 6963 Humboldt near Hydesville; North Coast Ranges 91 Comment
  UCD119529  Myosotis latifolia James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6855 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC32519  Myosotis sylvatica Kitsy Kelly 1974-6-11 32 Humboldt On the road between Freshwater and Kneeland 534 Comment
  CAS-BOT-BC101670  Myrica californica Ira L. Wiggins 1930-7-11 4682 Humboldt near Samoa Comment
  RSA10034  Nassella lepida Joseph P. Tracy 1933-5-20 12247 Humboldt Mattole Valley, near Petrolia 152 Comment
  JEPS79940  Navarretia Joseph P. Tracy 1937-7-19 15464 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  JEPS70235  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC55077  Navarretia capillaris G. L. Clifton, Griswold 1979-7-31 11689 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1198520  Navarretia pubescens Joseph P. Tracy 1914-5-14 4456 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC1198527  Navarretia squarrosa Joseph P. Tracy 1927-8-7 8328 Humboldt Willow Creek Trinity River Valley 152 Comment
  SEINET8729374 Image available Navarretia squarrosa H. E. Parks 1952-1 s.n. Humboldt Trinidad Comment
  UC203962  Navarretia viscidula Joseph P. Tracy 1918-7-5 5036 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  HSC35029  Nemophila menziesii Thomas W. Nelson, James Nelson 1975-5-24 1845 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC249523  Nemophila menziesii var. atomaria Joseph P. Tracy 1922-5-28 6055 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  UC1239747  Nemophila parviflora Joseph P. Tracy 1906-6-10 2484 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1239687  Nepeta cataria Joseph P. Tracy 1930-8-17 9155 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC93918  Noccaea fendleri subsp. californica D. K. Imper 1997-4-10 Humboldt Kneeland Prairie, W side of airport 854 Comment
  UCD110165  Notholithocarpus densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt Near Boynton Prairie. 609 Comment
  HSC8078  Notholithocarpus densiflorus var. densiflorus D. E. Anderson 1961-8-27 1759 Humboldt 8 mi. W of Redwood Creek Br. along Hwy. 299 Comment
  HSC40934  Nuttallanthus texanus Linda M. Barker 1976-4-30 1408 Humboldt 3 mi. W of Arcata Comment
  JEPS11312  Nuttallanthus texanus Joseph P. Tracy 1918-5-5 4921 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CHSC31294  Oenanthe sarmentosa Mark Stopher 1980-6-4 106 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  UC314583  Oenanthe sarmentosa Joseph P. Tracy 1924-9-28 6910 Humboldt Centerville Northern Coast Ranges, Centerville 6 Comment
  CAS-BOT-BC436010  Oenanthe sarmentosa W. R. Dudley 1899-6-21 s.n. Humboldt Near Scotia Comment
  HSC93518  Oenanthe sarmentosa Gordon Leppig 1998-6-25 848 Humboldt Arcata Marsh and Wildlife Sanctuary, Log pond, SW side 2 Comment
  HSC12413  Oenothera glazioviana D. Santana 1970-11-2 98 Humboldt 1 mi. S of Trinidad Comment
  HSC104397  Orobanche californica subsp. californica K. A. Wayman 2016-6-24 Humboldt Big Lagoon Spit, 1.5 mi. N of Big Lagoon County Park parking lot Comment
  HSC99007  Orobanche fasciculata var. franciscana Cara Witte 2008-7-14 894 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1380 Comment
  HSC54678  Orthilia secunda Overton, Butler 1979-7-26 9942 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC100939  Orthocarpus attenuatus Miss Handy Jun 1886 40 Humboldt Maple Cr. Comment
  HSC56006  Osmorhiza berteroi Overton, Butler 1979-7-31 11474 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC99397  Osmorhiza berteroi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 46 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC53833  Osmorhiza occidentalis Terry Griswold, Butler 1979-7-10 6281 Humboldt Near Board Camp Mountain 1372 Comment
  HSC16719  Oxalis articulata subsp. rubra D. E. Anderson 1961-9-22 1827 Humboldt Comment
  CHSC23900  Oxalis oregana D. G. Houston 1966-3-5 7 Humboldt Six miles up Fickle Hill Rd. 609 Comment
  HSC49078  Oxalis oregana J. O. Sawyer 1977-4-23 2843 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC16715  Oxalis pes-caprae W. F. Nickel 1965-5-15 Humboldt W side of College Elementary School, H.S.C. Campus Comment
  CAS-BOT-BC318150  Packera bolanderi var. bolanderi J. Burtt Davy; W. C. Blasdale 1899-6-12 5453 Humboldt near Elk Prairie Comment
  UC526840  Panicum acuminatum var. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC32567  Panicum acuminatum var. fasciculatum Thomas W. Nelson 1973-9-3 1120 Humboldt McKeown Ranch N of Dinsmore Comment
Read comments
Jul 8 2015
  UC526845  Panicum capillare Joseph P. Tracy 1930-10-12 9207 Humboldt Alton to Fortuna (Eel River on bars); Northern Coast Region, Eel River 15 Comment
  UCSB30624  Parentucellia viscosa Edwards, David 1974-8-14 Humboldt 3/4 mi. in on dirt road from jct. with Fickle Hill Rd. ca. 1/4 mi. E. of jct. of Park Ave. and Fickle Hill Rd.; where dirt road forks several ways. ca. 50 ft. S. of power line twr. Arcata 121 Comment
  HSC54592  Paxistima myrsinites Overton, Butler 1979-7-24 9660 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1199002  Paxistima myrsinites Joseph P. Tracy 1948-8-15 18132 Humboldt on Ridge 2 mi. e. Grove's Prairie (near Elk Camp, Trinity Summit); Trinity Summit 1554 Comment
  CAS-BOT-BC67769  Pellaea andromedifolia Doris K. Kildale 1926-4-30 1921 Humboldt Briceland Bridge, 1/2 mile west of Garbersville 114 Comment
  UCD137663  Pellaea brachyptera Freed W. Hoffman 1949-7-15 3007 Humboldt Mount Lassic area a little south of Blue Ridge; Mule Slide. Comment
  CHSC33041  Penstemon anguineus Thomas Nelson; Jane Nelson 1976-7-1 2907 Humboldt The Lassics. Growing along east side of Red Lassic; beside rd. 1S07. 1676 Comment
  HSC24382  Penstemon anguineus J. O. Sawyer 1970-6-24 2255 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC56254  Penstemon anguineus Walter Overton 1979-8-1 12387 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  JEPS7209  Penstemon anguineus Joseph P. Tracy 1932-7-12 10454 Humboldt near Corral Prairie; Trinity Summit, near Corral Prairie 1584 Comment
  RSA420442  Penstemon anguineus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2907 Humboldt Along east side of Red Lassic; beside road 1S07. 1677 Comment
  RSA63666  Penstemon anguineus Milo S. Baker 1947-8-10 11911 Humboldt Near end of Forest Rd from Hoopa towards Trinity Summit. 1372 Comment
  UC1011933  Penstemon anguineus F. W. Pennell and J. P. Tracy 1940-7-7 26092 Humboldt w Salyer (Grouse Mountain); w of Salyer, Grouse Mountain 1371 Comment
  RSA60491  Penstemon deustus subsp. deustus John H. Thomas 1949-6-12 902 Humboldt Near Klamath River, 1/2 mile N of town of Orleans Comment
  HSC76256  Penstemon heterophyllus Denis Kearns 1981-7-6 43 Humboldt Near Mosquito Lake 1122 Comment
  RSA120319  Penstemon laetus var. sagittatus S. S. Tillett 1956-7-6 608 Humboldt On E facing slope above Klamath River, along Ishi Rish Road, approx. 1.5 mi from Orleans. 198 Comment
  UC1222460  Penstemon laetus var. sagittatus Joseph P. Tracy 1935-7-29 14338 Humboldt near Ranger Station (Trinity Summit); Trinity Summit 1828 Comment
  UC585631  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-2 15395 B Humboldt on ridge 2 mi e Grove's Prairie; Trinity summit, e of Grove's Prairie 1524 Comment
  UC577416  Penstemon newberryi var. berryi Joseph P. Tracy Jul 16-19 1930 8953 Humboldt South Fork Mountain, open glades along summit near Blake lookout Northern Coast Ranges 1737 Comment
  JEPS7918  Penstemon rattanii Joseph P. Tracy 1921-6-12 5822 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1032475  Penstemon rattanii A. E. Wieslander 1931-5-21 213 Humboldt Kneeland China Flat Quad. Comment
  HSC70388  Pentagramma triangularis Gail Newton 1980-6-7 143 Humboldt Near Brush Mtn. 1128 Comment
  HSC37673  Pentagramma triangularis R. Sutherland 1976-8-6 28 .6876 Humboldt Whitmore Grove 99 Comment
  RSA0094697  Pentagramma triangularis A. Davidson 1923-8-11 17064 Humboldt Near Scotia. Comment
  CAS-BOT-BC71618  Pentagramma triangularis subsp. triangularis Doris K. Kildale 1928-12-30 6765 Humboldt Phillipsville Comment
  CAS-BOT-BC71615  Pentagramma triangularis subsp. triangularis Henry M. Pollard 1946-9-7 s.n. Humboldt Woodson Mine, Orleans Mt. Comment
  HSC99556  Perideridia gairdneri subsp. borealis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 221 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1197322  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1913-9-7 4390 Humboldt Eureka Northern Coast Region 0 Comment
  UC180225  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1914-10-11 4637 Humboldt Stephen Hill place Northern Coast Region, Eureka 0 Comment
  HSC34702  Persicaria amphibia Thomas W. Nelson 1974-8-24 1705 Humboldt Klamath River ca. 2 mi. below the mouth of Aikins Creek Comment
  HSC94187  Persicaria capitata Gordon Leppig, Sylvia Leppig 2000-4-16 1298 Humboldt Corner of 17th and J St., Arcata Comment
  CDA40548  Persicaria wallichii R. Robison 2014-5-5 s.n. Humboldt Adjacent to Trinidad State Beach on Stagecoach Road. 0 Comment
  HSC6050  Petasites frigidus var. palmatus C. O. Baker 1962-3-22 6 Humboldt 2 mi. S of Trinidad along old Hwy. 101 183 Comment
  UC1199101  Phacelia Joseph P. Tracy 1948-5-31 18022 Humboldt Blocksburg 518 Comment
  HSC13680  Phacelia bolanderi W. Lanphere 1937-5-25 Humboldt Dyerville Comment
  HSC37415  Phacelia bolanderi Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 517 Humboldt Along Lost Man Creek. 38 Comment
  HSC65662  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  JEPS2079  Phacelia heterophylla subsp. virgata Lincoln Constance 1934-5-29 731 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek region 365 Comment
  UCD120520  Phacelia heterophylla subsp. virgata Alice Eastwood; John Thomas Howell 1937-6-23 4757 Humboldt Dinsmore's. Comment
  UC175504  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1912-6-9 3666 Humboldt Alton Northern Coast Region 30 Comment
  UC562570  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1936-6-9 14876 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  JEPS1133  Phacelia nemoralis subsp. oregonensis W. L. Jepson 1902-6-20 1896 Humboldt = Mail Ridge Fort Seward Ranch Ridge 396 Comment
  HSC57670  Phacelia procera G. L. Clifton, Griswold 1979-7-25 10858 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC562579  Phacelia rattanii Joseph P. Tracy 1923-6-20 6305 Humboldt White Thorn Valley 304 Comment
  CAS-BOT-BC258965  Phalaris californica Joseph P. Tracy 1925-6-7 7085 Humboldt Lord-Ellis Road, on Bald Mt. 609 Comment
  HSC24261  Phalaris californica D. E. Anderson 1970-6-14 5125 Humboldt Near Maple Creek School, about 2 mi. SE of junction of Maple Creek Rd. and Butler Valley Rd. Comment
  RSA22131  Phalaris californica J. T. Howell 1937-7-31 13718 Humboldt Between Redwood Creek and Korbel Comment
  HSC47795  Phalaris minor Michael A. Watkins 1978-6-10 12 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 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-BC76559  Philadelphus lewisii H. E. McMinn 1922-8-4 339 Humboldt Along Van Duzer River. Comment
  RSA0046936  Philadelphus lewisii Lyman Benson 1928-7-10 397 Humboldt Hills by Humboldt Bay, Fortuna. Mouth of Eel River. 30 Comment
  HSC58543  Phleum alpinum Overton, Butler 1979-7-23 9546 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC184008  Phleum alpinum Joseph P. Tracy 1912-7-31 3908 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope of Buck Mountain 1066 Comment
  CAS-BOT-BC250883  Phleum pratense Doris K. Kildale 1926-6-27 2202 Humboldt Laribee Valley 701 Comment
  SEINET200960 Image available Phleum pratense Joseph P. Tracy ` 2892 Humboldt Ridge between van Duzen and Mad Rivers near low gap 914 Comment
  HSC24107  Phlox adsurgens J. O. Sawyer 1970-6-27 2305 Humboldt Site 318. 1494 Comment
  SEINET12279173  Phlox adsurgens H. P. Chandler 1901-1 1534 Humboldt Klamath River 427 Comment
  UC1191119  Phlox adsurgens Joseph P. Tracy 1925-6-7 7058 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  HSC45267  Phlox diffusa M. Alcasas 1978-6-3 112 Humboldt Horse Mtn. summit 1513 Comment
  HSC102090  Phyllodoce empetriformis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 993 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC90650  Phyllospadix scouleri L. Watson, J. Meninga Sep 1991 43 Humboldt Arcata, Mad River Slough and dunes Comment
  HSC31649  Physocarpus capitatus Timothy B. Devine 1974-5-4 327 Humboldt Mad River floodplain 1 mi. from Blue Lake on Hatchery Rd. 305 Comment
  POM281983  Picea sitchensis Lyman Benson 1928-7-10 445 Humboldt Dunes at Clam Beach, Arcata to Trinidad. 15 Comment
  RSA85509  Picea sitchensis G. R. Campbell 1954-3-24 19024 Humboldt 23.4 miles N of Petrolia on Old Coast Road toward Ferndale. Comment
  SJSU2223  Picea sitchensis H. L. Buckalew 1959-7-10 Humboldt Prairie Creek Redwoods State Park, northweastern Humbollt County Comment
  UC615028  Picea sitchensis Beryl O. Schreiber 1934-6-5 1130 Humboldt 5 mi above Fortuna (along highway) Comment
  HSC104094  Pinguicula macroceras Monica Rodriguez, William A. Worley 2015-3-21 25 Humboldt Along South Fork Rd, 8.9 mi. from 199 Redwood Hwy. Comment
  HSC44350  Pinus jeffreyi Brad Klipfel 1974-7-11 694 Humboldt Horse Mtn. Comment
  CAS-BOT-BC73113  Pinus lambertiana Doris K. Kildale 1926-9-5 2611 Humboldt Lassecks Peaks, Goat Camp 1661 Comment
  HSC95784  Pinus monticola Will Ferrand 2002-4-27 37 Humboldt Off Titlow Hill Rd. 0.75 mi. S of intersection of Titlow Rd. and Hwy. 299 884 Comment
  RSA275331  Pinus monticola Robert M. Specht 1977-11-20 1190 Humboldt Near Hwy. 101, flats along Gerogia Pacific s A-line. 122 Comment
  JEPS64469  Piperia candida Lincoln Constance 1934-5-27 708 Humboldt s end of Dyerville Bridge (Bull Creek Region, S. Fork Eel River); Bull Creek Region, S. Fork Eel River 45 Comment
  HSC44656  Pityopus californicus M. A. Baker 1978-7-19 623 Humboldt Bulk Collection 136 Comment
  UC526817  Plagiobothrys bracteatus Joseph P. Tracy 1933-7-20 12812 Humboldt near Blue Lake (in dry bed of slough); Mad River 15 Comment
  UC552843  Plagiobothrys hispidulus Joseph P. Tracy 1935-7-25 14226 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC526810  Plagiobothrys nothofulvus Joseph P. Tracy 1932-5-1 9861 Humboldt near Garberville; North Coast Ranges, Redway 182 Comment
  HSC3765  Plagiobothrys nothofulvus Doris K. Kildale 1926-5-2 1891 Humboldt Willow Creek Rd., Horse Mtn. Divide Comment
  HSC44635  Plagiobothrys nothofulvus Diane L. Reed 1978-5-7 61 Humboldt 2 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  UC1541669  Plagiobothrys reticulatus H. E. and S. T. Parks July 1937 24042 Humboldt Trinidad, Spruce Cove Comment
  UC206144  Plagiobothrys reticulatus Joseph P. Tracy 1909-5-23 2972 Humboldt Eureka 0 Comment
  UC1222216  Plagiobothrys reticulatus Joseph P. Tracy 1946-5-30 17541 Humboldt open flat by old Strong's District School House (5 mi e of town, Carlotta, Riverside Park); Carlotta, Riverside Park 60 Comment
  UC139568  Plagiobothrys reticulatus Joseph P. Tracy 1915-6-27 4660 Humboldt near the Creamery (Hydesville); Northern Coast Ranges, Hydesville 91 Comment
  UC526822  Plagiobothrys reticulatus Joseph P. Tracy 1928-6-24 8473 Humboldt head Yager Creek (East Ranch); North Coast Ranges, head Yager Creek, East Ranch 762 Comment
  JEPS60975  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS60980  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1909-6-6 2988 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS60976  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt Hydesville 60 Comment
  JEPS60995  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1923-6-20 6340 Humboldt Miranda North Coast Ranges 91 Comment
  JEPS60996  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1935-5-25 13860 Humboldt Fort Seward North Coast Ranges 106 Comment
  UC1222215  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18322 Humboldt at Cameron Hill on the Kneeland Road Cameron Hill Comment
  UC54757  Plagiobothrys tenellus Harley P. Chandler May, 1901 1087 Humboldt Harris 609 Comment
  HSC77348  Plantago elongata L. P. Janeway 1983-5-1 257 Humboldt W of Samoa Rd. and N of Coast Guard lands 6 Comment
  JEPS6422  Plantago erecta Joseph P. Tracy 1932-5-10 9930 Humboldt Bear River Ridge Northern Coast Ranges, Mattole Valley 609 Comment
  POM61312  Plantago hirtella var. galeottiana Joseph P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC16834  Plantago lanceolata Francis Winter 1960-4-24 Humboldt 1 mi. N of Redwood Creek Ranch 396 Comment
  HSC37170  Plantago lanceolata J. D. Ackerman 1974-5-25 259 Humboldt S Trinidad Beach, S of Trinidad Head Comment
  UC154018  Plantago major J. P. Tracy 1910-10-1 3167 Humboldt immediate vicinity Eureka 0 Comment
  POM319565  Platanthera Patricia Wilder 1968-8-21 4391 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC48856  Platanthera dilatata var. leucostachys Brad Klipfel 1973-7-15 215 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC102050  Platanthera leucostachys M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 954 Humboldt Patterson Meadows 1555 Comment
  RSA382868  Platanthera leucostachys Brad W. Klipfel 1973-7-31 255 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  HSC102048  Platanthera sparsiflora M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 951 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  UC146105  Platystemon californicus Joseph P. Tracy 1904-4-24 2020 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  BLMAR62  Platystemon californicus Jennifer Anthony-Wheeler 1994-4-6 62 Humboldt Samoa/manilla dunes, growing scattered throughout the dune mat 12 Comment
  CAS-BOT-BC91636  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Northern Coast Region.. Valley of South Yager Creek. 762 Comment
  UC602532  Plectritis brachystemon Joseph P. Tracy 1936-7-5 15037 Humboldt North Coast Range, Grouse Mountain Grouse Mountain; North Coast Range, Grouse Mountain 1524 Comment
  UC1239605  Plectritis congesta Joseph P. Tracy 1932-6-26 10255 1/2 Humboldt Valley of South Yager Creek 762 Comment
  UC1239606  Plectritis congesta Joseph P. Tracy 1923-5-20 6216 Humboldt Kneeland Prairie 762 Comment
  SEINET12327009  Plectritis samolifolia S. C. Dyal 1938-1 739 Humboldt near Capetown Comment
  HSC10625  Poa annua P. N. Slattery 1963-4-4 28 Humboldt Clam Beach. Comment
  RSA10141  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole 1829 Comment
  UC526847  Poa bolanderi Joseph P. Tracy 1934-7-18 13435 Humboldt Grouse Mt 1524 Comment
  HSC1828  Poa bulbosa William J. Ferlatte, B. D. Rogers 1966-6-8 2085 Humboldt Forest Glen Campground. Comment
  UC1103189  Poa bulbosa Joseph P. Tracy 1938-7-4 15988 Humboldt Valley of S Yager Creek 762 Comment
  HSC38919  Poa confinis Linda M. Barker 1976-4-30 1412 Humboldt 3 mi. W of Arcata Comment
  UC1103191  Poa confinis Joseph P. Tracy 1936-5-30 14836 Humboldt near Samoa (Humboldt Bay) 6 Comment
  UCD90512  Poa confinis Linda M. Barker 1976-4-30 1412 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC569487  Poa douglasii H. S. Yates 1936-6-18 5726 Humboldt near mouth Little River; Eureka Quadrangle 4 Comment
  UC665695  Poa douglasii H. E. Parks May, 1934 4805 Humboldt Little River Lagoon Comment
  UC1145110  Poa howellii Joseph P. Tracy 1946-6-23 17599 Humboldt Kneeland Prairie 762 Comment
  RSA183517  Poa kelloggii H. S. Logsdon 1964-5-10 7 Humboldt 4.0 miles N.E. of Orick at Boye's Prairie Comment
  CAS-BOT-BC254277  Poa macrantha David D. Keck; J. Clausen 1935-6-16 3382 Humboldt Mouth of Little River Comment
  CAS-BOT-BC254283  Poa macrantha Doris K. Kildale 1926-6-29 2243 Humboldt Mouth of Mad River Comment
  HSC38922  Poa macrantha Linda M. Barker 1976-6-22 1625 .5 Humboldt 3 mi. W of Arcata Comment
  POM204873  Poa macrantha Joseph P. Tracy 1900-7-4 886 Humboldt Sand Hills of Ocean Beach at Samoa, opp. Eureka Comment
  SEINET10855123  Poa macrantha Huron H. Smith 1911-1 Smith 3852 A Humboldt Comment
  HSC10759  Poa pratensis D. W. C. 1956-6-20 17 Humboldt May Ranch, Brigdeville. Comment
  HSC39187  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1226 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC40400  Poa pratensis Thomas W. Nelson 1976-7-9 3007 Humboldt S of Mtn. Lassic, (Signal Peak). 1707 Comment
  RSA129262  Poa pratensis H. S. Yates 1936-6-17 5703 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  JEPS72922  Poa pratensis subsp. pratensis Lincoln Constance 1934-6-19 918 a Humboldt near summit Grasshopper Peak (S Fork Eel River); Bull Creek Region 914 Comment
  UC525659  Poa secunda subsp. secunda Joseph P. Tracy Jul 16 1930-Jul 19 1930 9053 Humboldt near Blake lookout South Fork Mountain; Northern Coast Ranges 1737 Comment
  UCD90874  Poa secunda subsp. secunda J. B. Davy; W. C. Blasdale 1899-6-19 5658 Humboldt Hoopa Summit. Comment
  UC1145117  Poa trivialis Joseph P. Tracy 1937-6-6 15330 Humboldt Ferndale 15 Comment
  RSA20841  Polemonium carneum C. B. Wolf 1937-6-17 8881 Humboldt Big Lagoon, south side at west of Redwood Highway 6 Comment
  HSC69751  Polycarpon tetraphyllum Thomas W. Nelson 1977-10-10 3756 Humboldt Jct. of Fairway Dr. and Lundbar Place, Eureka Comment
  JEPS27112  Polygala cornuta var. cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC38370  Polygonum aviculare Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  HSC12351  Polygonum aviculare Steve Dorei 1970-10-31 141 Humboldt Scotia Bluffs, N of railroad tracks Comment
  UC672973  Polygonum aviculare subsp. depressum Joseph P. Tracy 1940-10-18 16778 Humboldt Trinidad 9 Comment
  CAS-BOT-BC414302  Polygonum aviculare subsp. neglectum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET3405098 Image available Polygonum bolanderi Joseph P. Tracy 1921-8-21 5944 Humboldt Trinity River Valley, Near Willow Creek 152 Comment
  HSC17487  Polygonum californicum D. E. Anderson 1961-9-3 1776 Humboldt Comment
  UC1116243  Polygonum californicum Joseph P. Tracy 1942-9-6 17305 Humboldt opposite Buck Mountain; Van Duzen River, Dinsmore's 762 Comment
  JEPS50540  Polygonum davisiae W. L. Jepson 1902-7-16 2053 Humboldt Trinity Summit 2133 Comment
  HSC55108  Polygonum douglasii G. L. Clifton 1979-7-31 11849 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC414465  Polygonum douglasii Joseph P. Tracy 1932-7-11 10399 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  CAS-BOT-BC414466  Polygonum douglasii Doris K. Kildale 1925-8-17 1231 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  UC672962  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1933-8-30 13042 B Humboldt Grouse Mountain 1524 Comment
  HSC57966  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11683 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC109187  Polygonum paronychia D. E. Breedlove 1962-6-7 3035 Humboldt 1.5 mile south of Samoa on peninsula on western side of Humboldt Bay. Comment
  HSC17513  Polygonum paronychia J. W. Johnson 1962-2-15 1152 Humboldt Samoa Peninsula: Christenson Farm, near Dune 3 N in the Hollow 3 S Comment
  HSC33752  Polygonum paronychia A. Montalvo 1975-5-24 283 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC672942  Polygonum parryi Joseph P. Tracy 1930-7-6 8855 Humboldt Valley of South Yager Creek 762 Comment
  HSC74386  Polygonum polygaloides subsp. kelloggii M. A. Baker 1980-6-28 2504 Humboldt Near Mad River Buttes 1445 Comment
  UCD100641  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit, Corral Prairie. 1584 Comment
  UC1222467  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1933-8-30 13023 Humboldt Grouse Mountain 1524 Comment
  HSC54719  Polygonum spergulariiforme Overton, Butler 1979-7-26 10094 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  SEINET3404068 Image available Polygonum spergulariiforme Joseph P. Tracy 1921-10-2 5966 Humboldt Kneeland Prairie Comment
  POM210237  Polygonum spergulariiforme H. E. Parks, Joseph P. Tracy 1930-9-15 767 Humboldt Bald Hills Comment
  SEINET200790 Image available Polypodium glycyrrhiza Joseph P. Tracy 1936-3-8 14775 Humboldt Miranda; oak groved along South Fork of Eel River Comment
  CAS-BOT-BC76843  Polypodium glycyrrhiza Carl D. Duncan 1920-9-22 s.n. Humboldt Supply Creek, Hoopa Comment
  RSA24197  Polypodium glycyrrhiza C. B. Wolf 1941-3-1 9976 Humboldt 4 mi NE of Strongs Station (Van Duzen River) on Rd. to Yager 152 Comment
  UC667949  Polypodium glycyrrhiza Joseph P. Tracy 1936-3-8 14775 Humboldt along S Fork Eel River Miranda 121 Comment
  JEPS93137  Polypodium scouleri M. Wetherwax 1992-5-20 2434 Humboldt coastal bluff s side of Wedding Rock; Patrick's Point State Park 30 Comment
  UC1472769  Polypodium scouleri Mrs. Carlotta C. Hall 1924-8-9 231 Humboldt Wilder ranch near Carlotta Comment
  CAS-BOT-BC233071  Polypogon interruptus Joseph P. Tracy 1927-7-16 8261 Humboldt Eureka 60 Comment
  HSC12125  Polypogon interruptus A. S. Hitchcock 1915-7-23 839 Humboldt Eureka Comment
  UCD91028  Polypogon interruptus Joseph P. Tracy 1936-6-8 14871 Humboldt Trinidad. 9 Comment
  CAS-BOT-BC233212  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake 15 Comment
  HSC10832  Polypogon maritimus D. E. Anderson 1965-9-5 4077 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  SEINET200577 Image available Polypogon monspeliensis Joseph P. Tracy 1916-5-31 4692 Humboldt Holmes Flat along Eel River from South Fork to Scotia. 61 Comment
  SEINET11681498  Polypogon monspeliensis H. P. Chandler 1901-1 1431 Humboldt Klamath River, North Coast Ranges 335 Comment
  UC1440057  Polystichum californicum Danin & H. G. Baker 1960-8-13 598 Humboldt ca. 2 mi n Dyerville (High Rock on w side of Eel River, along Ave. of the Giants) Comment
  HSC73875  Polystichum imbricans M. Baker 1980-7-15 2952 Humboldt Near Whiting Ridge 1341 Comment
  CAS-BOT-BC76665  Polystichum munitum Doris K. Kildale 1926-7-22 2414 Humboldt Metropolitan, woods near Canyon Park. Comment
  HSC13039  Polystichum munitum D. Santana, C. Kline Oct 1970 24 Humboldt HSC Campus Comment
  HSC40256  Polystichum munitum Linda M. Barker 1976-4-30 1414 Humboldt 3 mi. W of Arcata Comment
  HSC54652  Polystichum munitum Overton, Butler 1979-7-25 9860 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC79181  Polystichum munitum C. J. Thomas 1984-9-25 116 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  SEINET10793992  Polystichum munitum J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13008 Humboldt Leggett; Redwoods River Resort, 75000 Highway 101. Comment
  UC1196662  Populus trichocarpa Joseph P. Tracy 1932-5-11 9970 Humboldt 2 mi n Samoa; North Coast Ranges 6 Comment
  UC176664  Populus trichocarpa Joseph P. Tracy 1913-6-22 4261 B Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC60858  Potamogeton natans W. C. Blasdale June, 1896 Humboldt near Graham's Ranch (on Mad River); Mad River Comment
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Sep 17 2012
  SEINET3837233  Potamogeton natans Unknownnown 1949-8-9 1229 Humboldt Marshy Pond 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  HSC102525  Potentilla drummondii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1512 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC98883  Potentilla glandulosa subsp. reflexa Cara Witte 2007-7-19 550 Humboldt Forest Service Road 4N32. 1.5 miles east of intersection with 4N70. Grouse Mountain Lookout. 1547 Comment
  HSC101986  Potentilla glandulosa var. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 884 Humboldt Patterson Meadows 1566 Comment
  HSC58327  Potentilla gracilis var. fastigiata Overton, Butler 1979-8-2 12625 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC303161  Potentilla palustris Joseph P. Tracy 1924-7-13 6727 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  HSC57112  Prosartes hookeri Overton, Butler 1979-7-25 9855 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UCD20382  Prunella vulgaris K. Esau 1934-5-6 s.n. Humboldt Fort Seward. Comment
  HSC56433  Prunella vulgaris subsp. lanceolata Griswold, Butler 1979-7-12 7145 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC162689  Prunella vulgaris var. lanceolata Joseph P. Tracy 1911-7-7 3380 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Cr with Trinity River 914 Comment
  UCD125323  Prunella vulgaris var. lanceolata K. Esau 1934-5-6 s.n. Humboldt Fort Seward. 152 Comment
  UC1198775  Prunus emarginata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9036 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1198776  Prunus subcordata Joseph P. Tracy 1932-6-14 19142 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC96233  Prunus virginiana var. demissa Sara March, Gillian Levy 2005-6-10 8 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  UC1198780  Prunus virginiana var. demissa Joseph P. Tracy 1926-10-14 7814 Humboldt near the South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  BLMAR148  Pseudotsuga menziesii Donald Hazlett 1994-6-9 148 Humboldt King range, E-facing slope off hourse mountain ridge 609 Comment
  OBI36577  Pseudotsuga menziesii var. menziesii David J. Keil 1983-7-1 17264 Humboldt Ca. 8 mi W of jctn US101 along Bull Crk Flats rd Comment
  UC1223166  Psilocarphus tenellus Joseph P. Tracy 1950-6-29 18937 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CAS-BOT-BC361930  Psilocarphus tenellus M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale on road to Garberville Comment
  UCD18378  Psoralea micrantha Bryant Washburn 1974-7-8 s.n. Humboldt 12 miles west of Winnemucca, Milepost 519.75, at Raglan siding, in ballast section along Western Pacific Railroad tracks. Comment
  HSC98648  Pterospora andromedea Cara Witte 2007-8-8 624 Humboldt Intersection of National Forest 1 and Forest Service Road 6N38. 1409 Comment
  JEPS58852  Pyrola asarifolia Milo S. Baker 1923-7-20 63 Humboldt Redwood House Road Comment
  CAS-BOT-BC462869  Pyrola asarifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC1541560  Pyrola picta Harold E. Parks 1934-6-27 5259 Humboldt Grouse Mountain Comment
  CAS-BOT-BC466039  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Sumimt near Corral Prairie 1584 Comment
  BLMAR168  Quercus Donald Hazlett 1994-6-7 168 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC8106  Quercus chrysolepis D. E. Anderson 1961-9-30 1840 Humboldt Blue Lake 793 Comment
  UC1196534  Quercus chrysolepis Joseph P. Tracy 1911-6-8 3446 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UCD45385  Quercus chrysolepis Joseph P. Tracy; H. E. Parks 1931-5-17 9413 Humboldt Trinity River Valley opposite Willow Creek. 152 Comment
  HSC48346  Quercus garryana Maralyn O'Meara 1974-7-11 527 Humboldt Kneeland, Barry Ridge Comment
  HSC35715  Quercus kelloggii Thomas W. Nelson 1975-10-12 2234 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC98723  Quercus kelloggii Cara Witte 2008-7-11 885 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  HSC99009  Quercus kelloggii Cara Witte 2008-7-1 785 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  UC1196358  Quercus kelloggii Joseph P. Tracy 1913-6-22 4270 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC104333  Quercus sadleriana Carl B. Wolf 1937-8-13 9261 Humboldt North Coast Range, 12 mi E of Hoopa Valley on New Road towards Trinity Summit 1676 Comment
  HSC55031  Quercus sadleriana Overton, Butler 1979-7-31 11470 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC1196511  Quercus sadleriana Joseph P. Tracy 1947-7-5 17798 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC85452  Quercus vacciniifolia Andrew Buchanan, et al. 1986-6-6 101 Humboldt Titlow Hill Rd. and ski area exit Comment
  UCR165264  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest) on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine 1463 Comment
  JEPS55034  Ranunculus alismifolius var. alismellus W. L. Jepson July, 1902 2106 Humboldt Trinity Summit 2133 Comment
  UC162340  Ranunculus aquatilis var. capillaceus Joseph P. Tracy 1911-7-10 3486 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  BLMAR650  Ranunculus occidentalis Jennifer Wheeler 2012-5-9 650 Humboldt Lacks Creek, Beaver Ridge Road 865 Comment
  UC1196267  Ranunculus parviflorus Joseph P. Tracy 1928-5-13 8434 Humboldt near Centerville; Northern Coast Ranges, Fleener's Gulch 60 Comment
  UC503047  Ranunculus parviflorus Joseph P. Tracy 1927-5-21 8067 Humboldt Carlotta Northern Coast Ranges (roadside) 60 Comment
  UC503040  Ranunculus uncinatus Joseph P. Tracy 1928-4-29 8419 Humboldt Prairie Creek Northern Coast Ranges 152 Comment
  CDA3875  Reseda luteola R. Drewry 1968-12-12 Humboldt 0.5 mile east of Casterlin. 0 Comment
  CAS-BOT-BC55834  Rhamnus C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River Comment
  HSC44734  Rhododendron columbianum Maralyn O'Meara 1971-10-25 53 Humboldt S side of Big Lagoon Comment
  UCD20673  Rhododendron macrophyllum A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute, May Creek Watershed +- 1000'. Comment
  HSC36437  Rhododendron occidentale var. paludosum John Rehling 1974-7-8 5 Humboldt County park at Big Lagoon Comment
  HSC74570  Rhododendron occidentale var. paludosum M. A. Baker 1980-5-17 1238 Humboldt Near Le Perron Peak 1066 Comment
  UC1222379  Ribes binominatum Joseph P. Tracy 1950-7-1 18949 Humboldt Cold Springs Grouse Mountain 1432 Comment
  CAS-BOT-BC92879  Ribes bracteosum Joseph P. Tracy 1948-9-5 18165 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  RSA459478  Ribes bracteosum Barbara Kelly 1977-4-23 304 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  UC154115  Ribes bracteosum Joseph P. Tracy June 1904 2104 Humboldt near Falk's Mill (on Elk River); Northern Coast Region, Humboldt Bay 0 Comment
  UC902084  Ribes bracteosum Joseph P. Tracy 1949-6-6 18299 Humboldt ne Hawkin's Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC168853  Ribes inerme var. klamathense Joseph P. Tracy 1937-4-3 15243 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  JEPS25431  Ribes inerme var. klamathense Joseph P. Tracy 1941-3-26 16813 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  HSC99361  Ribes lacustre K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 10 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS49357  Ribes lacustre W. L. Jepson 1902-7-15 2030 Humboldt Mud Spring to Trinity Summit 1524 Comment
  CAS-BOT-BC176807  Ribes laxiflorum Doris K. Kildale 1927-4-10 3080 Humboldt Prairie Creek, north of Orick Comment
  HSC13253  Ribes laxiflorum D. E. Anderson 1962-4-1 1969 Humboldt Intersection of Clam Beach Rd. and Dows Prairie Rd. Comment
  HSC74138  Ribes lobbii M. A. Baker 1980-7-23 3175 Humboldt Near Orleans Mtn. 1859 Comment
  UC492232  Ribes lobbii Joseph P. Tracy 1927-5-15 8065 Humboldt w Hoopa (near summit on Road to Bair's); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC70550  Ribes lobbii J. Burtt Davy 1899-6-23 5840 Humboldt Trinity Summit North Coast Ranges 1981 Comment
  HSC57895  Ribes marshallii Overton, Butler 1979-7-31 11472 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC154119  Ribes menziesii J. P. Tracy 1904-7-31 2130 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC212653  Ribes nevadense W. R. Dudley 1901-8-25 s.n. Humboldt Near the 14 mile post, Salmon Creek, Salmon Mountains Comment
  HSC71225  Ribes roezlii Thomas W. Nelson 1977-4-20 3333 Humboldt Along USFS Road 1N15 at summit 915 Comment
  UC1193214  Ribes roezlii P. Zinke 1950-8-4 153 Humboldt 2 mi w Harris Post Office (outside national forest); Quad. 29D3 853 Comment
  HSC31647  Ribes roezlii var. cruentum Timothy B. Devine 1974-5-4 314 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC28504  Ribes sanguineum J. D. Ackerman 1973-3-27 40 Humboldt 1.5 mi. N of Manila Comment
  HSC38949  Ribes sanguineum J. P. Smith, J. O. Sawyer 1975-6-22 8209 Humboldt Six Rivers National Forest, W of Goat Hill Comment
  HSC71794  Ribes sanguineum Gail Newton 1980-6-16 174 Humboldt Near Monks Camp. 1097 Comment
  CAS-BOT-BC144690  Ribes sanguineum var. glutinosum Doris K. Kildale 1928-2-19 4271 Humboldt Patrick's Point Comment
  HSC40407  Ribes sanguineum var. glutinosum Linda M. Barker 1976-1-24 1311 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC173994  Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt Ridges East of Corral Prairie 1828 Comment
  HSC56193  Ribes viscosissimum Gilbert Muth 1979-8-1 12134 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1239758  Romanzoffia californica Joseph P. Tracy 1946-5-19 17529 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC74370  Rorippa columbiae Henry M. Pollard 1956-10-9 s.n. Humboldt Near Fig Tree Riffle at Woodson Mine, Klamath River, Orleans. Comment
  UC1199221  Rorippa curvisiliqua Joseph P. Tracy 1934-7-9 13350 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  UC161585  Rorippa curvisiliqua Joseph P. Tracy 1909-6-13 2992 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  CAS-BOT-BC147434  Rosa californica Doris Kildale 1931-6-6 10869 Humboldt Gans Prairie, Orick - Weitchpec Road Comment
  POM161058  Rosa californica Joseph P. Tracy 1923-9-16 6550 Humboldt Trinity River Valley, Near the south fork Comment
  HSC32264  Rosa gymnocarpa J. O. Sawyer 1970-6-24 2249 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  POM160283  Rosa gymnocarpa Joseph P. Tracy 1926-5-2 7443 Humboldt Willow Creek Canyon 610 Comment
  RSA254749  Rosa gymnocarpa Thomas W. Nelson, J. Nelson 1973-5-28 957 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC154526  Rosa gymnocarpa Mrs. M. H. Manning Sept. 1901 Humboldt near Hupa Comment
  HSC27851  Rosa nutkana Clifton Raymond Chesbrough 1973-6-19 61 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  RSA22642  Rosa nutkana H. E. Parks, Susan T. Parks 1937-06 24021 Humboldt Spruce Cove, Trinidad. Comment
  SEINET11910997  Rosa nutkana F. H. Utech 1986-1 86 -392 Humboldt ca 5 mi N on Kings Peak Road, from junction with Shelter Cove Road, near Tolkan Recreation Area 480 Comment
  UC1199020  Rosa nutkana var. nutkana Joseph P. Tracy 1928-12-2 8525 Humboldt Elk River Corners Northern Coast Ranges, Eureka 0 Comment
  UC1199027  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-9 14887 Humboldt Bear River Ridge 609 Comment
  CAS-BOT-BC148343  Rosa pisocarpa Joseph P. Tracy 1947-8-24 17890 Humboldt Trinity Summit, near Box Camp in open fir timber. 1524 Comment
  HSC60308  Rubus armeniacus J. P. Smith, Steve Selva 1970-6-14 3850 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC89515  Rubus armeniacus M. Roantree 1985-6-10 81 Humboldt East side of Trinidad Head Comment
  JEPS44733  Rubus laciniatus Joseph P. Tracy 1926-11-7 7828 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, along Eel River 60 Comment
  HSC19672  Rubus parviflorus R. I. Bonn 1965-5-9 47 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  SEINET4093648  Rubus parviflorus O. M. Clark 1932-1 707 Humboldt South Eureka. Comment
  CHSC19742  Rubus spectabilis Gary J. Stebbins 1970-2-21 9 Humboldt Patricks Point State Park. Comment
  CAS-BOT-BC156728  Rubus spectabilis Duart V. Brown 1947-3-27 18 Humboldt Tectah Creek, Klamath River Comment
  CAS-BOT-BC158790  Rubus ursinus J. P. Tracy 1902-7-4 1759 Humboldt Immediate vicinity of Eureka 152 Comment
  UC1199049  Rubus ursinus J. P. Tracy 1901-6-23 1164 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC1199052  Rubus ursinus Joseph P. Tracy 1935-5-25 13827 Humboldt along headwaters Larrabee Creek (Blocksburg); along headwaters of Larrabee Creek 457 Comment
  UCD17930  Rubus ursinus H. Olmo; T. S. Mallah 1953-4-3 53- 59 A Humboldt California. Humboldt County: Jordan Street in Rohnerville. In city limits, 0.5 blocks west of the north side of the Richfield filling station. Comment
  HSC99000  Rubus ursinus subsp. ursinus Cara Witte 2008-7-16 906 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  HSC35025  Rudbeckia occidentalis K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  HSC75259  Rudbeckia occidentalis J. O. Sawyer, M. A. Ericksen 1980-8-18 4053 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  CAS-BOT-BC363201  Rudbeckia occidentalis Doris K. Kildale 1925-8-15 1173 a Humboldt Elk Horn Prairie - Trinity Summit 1539 Comment
  HSC55178  Rumex acetosella Gilbert Muth 1979-8-1 12186 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC17572  Rumex acetosella R. D. Modafferi 1965-3-19 33 Humboldt 0.9 mi. S of Trinidad on Hwy. 101 305 Comment
  UC672929  Rumex conglomeratus Joseph P. Tracy 1933-8-13 12966 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  CAS-BOT-BC421747  Rumex conglomeratus Henry M. Pollard 1945-8-24 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC37419  Rumex crispus Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 515 Humboldt Along Lost Man Creek. 38 Comment
  UC672927  Rumex occidentalis Joseph P. Tracy 1936-6-3 14854 Humboldt near Lack Pond; Trinity River Valley, Willow Creek 152 Comment
  UC1541397  Rumex salicifolius var. salicifolius Harold E. Parks 1934-8 5166 Humboldt Big Lagoon Comment
  UC672874  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 Comment
  SEINET3893324  Ruppia maritima Rick Lundquist 1979-5-31 111 Humboldt Arcata South Quadrangle. At south end of H Street.; 0 0 Comment
  UCD92347  Rytidosperma penicillatum B. A. Madson 1938-8-5 s.n. Humboldt Loleta (coast). Comment
  UC490538  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt blueberry swamp in McKay Meadow; Klamath Mts., Trinity Summit 1524 Comment
  CAS-BOT-BC103814  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01234 Humboldt On floodplain of the Van Duezn River, 1 1/2 miles east of Alton 30 Comment
  CAS-BOT-BC103824  Salix exigua L. R. Abrams; R. Bacigalupi 1922-6-25 8227 Humboldt 6 miles north of Garberville Comment
  UC481301  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 969 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  CAS-BOT-BC107676  Salix hookeriana John Johnson 1962-4-1 1187 Humboldt Lamphere Ranch, about 4 miles west of Arcata. Sand dune formation along beach Comment
  CAS-BOT-BC107731  Salix hookeriana Harold E. Parks 1931-3-26 904 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107749  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa, Humboldt Bay Comment
  JEPS12927  Salix hookeriana Joseph P. Tracy 1931-5-3 9356 Humboldt near Luffenholz Creek (near ocean); Northern Coast Region, Trinidad 60 Comment
  JEPS14771  Salix hookeriana Joseph P. Tracy 1933-3-19 10924 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  RSA239712  Salix hookeriana Larry E. DeBuhr 1973-4-23 995 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  SBBG59111  Salix hookeriana H. E. Parks 1931-3-24 914 Humboldt Eel River, Fortuna 10 Comment
  UC490460  Salix hookeriana Joseph P. Tracy 1932-5-10 9949 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490465  Salix hookeriana Joseph P. Tracy 1932-9-10 10767 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490469  Salix hookeriana Joseph P. Tracy 1932-9-5 10769 Humboldt Mattole R. near Petrolia; Northern Coast Region, Mattole R. 15 Comment
  UC512086  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1221 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC512091  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1216 Humboldt 1 mi n Samoa (in pine barrens near coast) Comment
  UC512104  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1208 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC537984  Salix hookeriana Joseph P. Tracy 1934-9-22 13676 Humboldt mouth of Mad R.; North Coast Ranges, Mad R. 9 Comment
  RSA0034648  Salix hookeriana Harold E. Parks 1931-5-28 01000 Humboldt Little River Lagoon. Comment
  JEPS14791  Salix jepsonii Joseph P. Tracy 1933-7-16 12773 Humboldt meadow at McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC128198  Salix lasiandra var. lasiandra Doris K. Kildale 1927-7-19 3773 Humboldt Pond naer Jarnigan's, Upper Mad River Comment
  HSC96610  Salix lasiandra var. lasiandra Gordon Leppig 2005-4-8 2210 Humboldt Eureka, edge of PALCO Marsh at W end of W Hawthorne St. 3 Comment
  HSC98013  Salix lasiolepis Cara Witte 2007-7-20 566 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  JEPS12949  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14751  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC303034  Salix lasiolepis Joseph P. Tracy 1926-5-1 7451 Humboldt Redwood Creek, at Berry's 274 Comment
  UC490467  Salix lasiolepis Joseph P. Tracy 1932-9-5 10768 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC506342  Salix lasiolepis Joseph P. Tracy 1933-4-9 10966 Humboldt Bridgeville, along Van Duzen River 228 Comment
  UC506373  Salix lasiolepis Joseph P. Tracy 1933-4-9 10965 Humboldt Bridgeville 228 Comment
  UC512118  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt on Trinity Hwy e Redwood Creek; Berry's Mountain 762 Comment
  UCSB11964  Salix lasiolepis Ball, Carleton; Parks, Harold; Tracy, Joseph 1932-5-11 Humboldt Little River Lagoon, 4.5 miles south of Trinidad Comment
  CAS-BOT-BC107290  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01239 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107411  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-3-20 2907 Humboldt Stephens Grove on South Fork of Eel River 60 Comment
  CAS-BOT-BC107421  Salix lasiolepis var. lasiolepis Alice Eastwood 1913-7-3 3417 Humboldt Bear River, McCourtneys Bridge Comment
  HSC102022  Salix lucida subsp. lasiandra M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 923 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  RSA475257  Salix lucida subsp. lasiandra Lyman D. Benson 1929-7-15 1809 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  JEPS12972  Salix melanopsis Joseph P. Tracy 1931-9-7 9644 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14789  Salix melanopsis Joseph P. Tracy 1933-6-11 12551 Humboldt S. Fork Eel River near Miranda; Northern Coast Ranges 60 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
  UC481294  Salix melanopsis Harold E. Parks 1931-5-14 965 Humboldt between Alton and Carlotta (Van Duzen R.); Van Duzen R. 15 Comment
  CAS-BOT-BC129210  Salix piperi Doris K. Kildale 1929-2-28 6951 Humboldt Mad River at Essex Comment
  CAS-BOT-BC129246  Salix piperi Joseph P. Tracy 1932-3-19 9787 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC129126  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC129140  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  HSC56328  Salix scouleriana Overton, Butler 1979-8-2 12681 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SD883  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen River 449 Comment
  UC249646  Salix scouleriana Joseph P. Tracy 1923-1-7 6136 Humboldt Table Bluff Northern Coast Ranges, Table Bluff 91 Comment
  UC506513  Salix scouleriana B. S. and C. S. Ball 1932-9-12 2532 Humboldt 2 mi. n. Trinidad (home of Mr. and Mrs. Harold E. Parks) Comment
  CAS-BOT-BC129000  Salix sitchensis Harold E. Parks 1931-5-28 1026 Humboldt Little River Lagoon, at sea level. Comment
  CHSC9554  Salix sitchensis E. L. Smith 1971-4-6 924 Humboldt At Field's Landing ca. 7 mi s of Eureka. Comment
  HSC59689  Salix sitchensis Marla J. Carollo 1979-5-4 61 Humboldt Clam Beach Lagoon, near Little River Beach, adjacent to Hwy. 101 Comment
  POM161040  Salix sitchensis Joseph P. Tracy 1926-12-5 7833 Humboldt Blue Slide on van Duzen River. 91 Comment
  UC1196718  Salix sitchensis Joseph P. Tracy 1932-5-14 10063 Humboldt Scotia Bluffs Northern Coast Ranges, Scotia Bluffs 30 Comment
  UC490491  Salix sitchensis Joseph P. Tracy 1932-8-11 10340 Humboldt N. Yager Creek Northern Coast Ranges, N. Yager Creek 304 Comment
  UC506362  Salix sitchensis Joseph P. Tracy 1933-3-19 10928 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  CDA39588  Salix sitchensis Peter Haggard 1993-4-17 s.n. Humboldt Van Duzen River west of Bridgeville on Hwy 36. 0 Comment
  HSC20132  Salix tracyi J. P. Tracy 1933-4-9 10966 Humboldt Bridgeville, along Van Duzen River 229 Comment
  UC55407  Salix tracyi Mrs. M. H. Manning 1932-4 Humboldt Hupa Comment
  CAS-BOT-BC176897  Salsola tragus Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River near Boyce Creek, Orleans region Comment
  UC1239543  Sambucus mexicana Joseph P. Tracy 1932-7-17 10668 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  HSC41198  Sambucus nigra subsp. caerulea Thomas W. Nelson, Jane P. Nelson 1977-7-4 3590 Humboldt Along road N of Alder Springs. 1524 Comment
  HSC57142  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-26 9926 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC31462  Sambucus racemosa var. racemosa Steve Selva, Roger Jensen 1974-8-28 99 Humboldt Behind Humboldt State University, Arcata. Comment
  HSC59500  Sambucus racemosa var. racemosa M. A. Ericksen 1979-4-6 202 Humboldt 880 Central Ave. McKinleyville. Comment
  UC180212  Sanguisorba officinalis subsp. microcephala Joseph P. Tracy 1914-9-6 4602 Humboldt Bald Mountain, between High Prarie and Snow Camp Northern Coast Ranges 1219 Comment
  UC642286  Sanicula arctopoides Joseph P. Tracy 1927-6-8 8110 Humboldt Trinidad 3 Comment
  HSC95577  Sanicula arctopoides Andrea Pickart 2002-3-14 7 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  UC1541386  Sanicula arctopoides H. E. Parks May 1934 4327 Humboldt Trinidad, Egg Point Egg Point; Trinidad, Egg Point Comment
  UC314594  Sanicula graveolens Joseph P. Tracy 1926-6-20 7648 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  UC1197094  Sanicula graveolens Joseph P. Tracy 1926-5-30 7520 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC1565803  Sanicula tuberosa R. Spellenberg 1990-7-9 10227 Humboldt 14 air mi sw of Burnt Ranch (20.5 mi s of California Hwy 299 and Berry Summit on USFS Rd 1, on Pilot Ridge, extreme e edge of Humboldt County); Pilot Ridge 1371 Comment
  UC642318  Sanicula tuberosa Joseph P. Tracy 1930-7-17 9011 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  UC416708  Satureja douglasii P. E. Goddard 1906-6 684 Humboldt Blocksburg Comment
  JEPS62819  Satureja douglasii Lincoln Constance 1934-5-24 634 Humboldt forest bordering e side Lower Look Prairie; Bull Creek Region, South Fork Eel River 121 Comment
  JEPS79978  Saxifraga marshallii Joseph P. Tracy 1941-3-26 16834 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  SEINET3411481 Image available Saxifraga mertensiana Joseph P. Tracy 1922-4-30 6009 Humboldt Mouth of South Fork of Trinity river 152 Comment
  HSC101990  Saxifraga nidifica M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 889 Humboldt Patterson Meadows 1555 Comment
  HSC7443  Schoenoplectus americanus D. E. Anderson 1961-9-9 1792 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon. Comment
  CAS-BOT-BC111699  Schoenoplectus pungens var. badius A. A. Heller 1924-7-21 13868 Humboldt Plentiful in a drier part of a salt marsh at Eureka. Comment
  SEINET3913367  Schoenoplectus pungens var. badius J. D. Ackerman 1975-6-10 465 Humboldt About 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila. Humboldt Bay.; 0 Comment
  UC183668  Scirpus acutus var. occidentalis Joseph P. Tracy 1907-7-20 2595 Humboldt region about Humboldt Bay (near Samoa); Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC102057  Scirpus microcarpus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 962 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 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
  UCSC000121  Scirpus paludosus H. L. Person 1932-5-11 s.n. Humboldt near Arcata - Eureka Comment
  CHSC2305  Scoliopus bigelovii V. Holt 1933-4-10 Humboldt Comment
  HSC41917  Scoliopus bigelovii Rich White 1977-4-23 16 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork on Bear Creek at Wailaki Campground 561 Comment
  UC1103491  Scoliopus bigelovii Joseph P. Tracy 1933-3-26 10941 Humboldt Big Lagoon 91 Comment
  HSC31640  Scrophularia californica Glenn McGourty 1974-6-1 82 Humboldt Comment
  UC1409052  Scrophularia californica subsp. californica Robert F. Thorne and P. Everett 1965-8-9 35314 Humboldt Clam Beach County Park 3 Comment
  HSC14396  Scutellaria antirrhinoides H. E. Parks, J. P. Tracy 1934-6-27 11061 Humboldt Grouse Mtn. 1433 Comment
  UC162687  Scutellaria antirrhinoides Joseph P. Tracy 1911-7-7 3399 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC1239696  Scutellaria antirrhinoides Joseph P. Tracy 1933-7-9 12654 Humboldt Brannan Mountain; Northern Coast Ranges, Brannan Mountain 1066 Comment
  HSC100511  Scutellaria tuberosa Carl C. Marshall Jun 1887 470 Humboldt Near Garberville. Comment
  HSC57458  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-26 10290 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC59850  Sedum obtusatum subsp. retusum M. A. Baker 1979-6-27 927 Humboldt Head of Grogan Hole, at the head of Oregon Creek Comment
  CAS-BOT-BC63791  Sedum radiatum subsp. radiatum Doris K. Kildale 1926-5-31 2021 Humboldt Miranda, on South Fork of Eel River Comment
  CAS-BOT-BC63792  Sedum radiatum subsp. radiatum Reid Moran 1951-6-13 3485 Humboldt West slope of Buck Mountain 853 Comment
  JEPS25690  Sedum spathulifolium P. C. Hutchison 1961-5-22 2020 Humboldt 5.4 mi ne of Klamath River bridge at Weitchpec (10 mi sw of Orleans, Hiway US299, w side of Klamath River on steep rocks above road); w side Klamath River, ne Weitchpec, sw Orleans Comment
  JEPS19067  Selaginella oregana Joseph P. Tracy 1933-11-26 13124 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC630453  Senecio glomeratus H. E. and S. T. Parks 1937-7-1 24033 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  UC1239501  Senecio glomeratus Joseph P. Tracy 1936-8-24 15173 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CAS-BOT-BC364020  Senecio integerrimus var. major Doris K. Kildale 1928-5-27 5957 Humboldt Kneeland Prairie 853 Comment
  UC1199245  Senecio integerrimus var. major Joseph P. Tracy 1933-6-13 12585 Humboldt near summit Hoopa Mountain (on road w from Hoopa to Bair's); Northern Coast Ranges 1219 Comment
  UC169342  Senecio integerrimus var. major Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3632 Humboldt near Bucksport; Northern Coast Region, Eureka 0 Comment
  BLMAR294  Senecio integerrimus var. major Jennifer Anthony-Wheeler 2002-4-30 294 Humboldt Clark Butte 670 Comment
  HSC67933  Senecio integerrimus var. major J. P. Smith, J. O. Sawyer 1974-6-2 7652 Humboldt 1372 Comment
  JEPS37228  Senecio integerrimus var. major W. L. Jepson 1902-6-19 1888 Humboldt Ft. Seward Ranch 1219 Comment
  CDA7631  Senecio jacobaea E. Eberwein 1958-9-4 1197 -58 Humboldt William Lowry property, Bear River, Ferndale. 0 Comment
  CDA7634  Senecio jacobaea E. C. Whitney 1966-8-25 Humboldt South side of mouth of Canyon Creek, Simpson Lumber Company property, ca. 6 miles north of Korbel. 0 Comment
  UC1199491  Senecio minimus Joseph P. Tracy 1936-8-23 15161 Humboldt Carlotta Northern Coast Ranges Comment
  UCD135620  Senecio minimus Gilfillan 1921-8-16 s.n. Humboldt Eureka. Comment
  JEPS37087  Senecio sylvaticus Lincoln Constance 1934-6-2 790 Humboldt Bull Cr. road to mouth of Bull Creek (and up the creek); South Fork Eel River, Bull Creek Region Comment
  CAS-BOT-BC364329  Senecio triangularis Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC34282  Senecio triangularis K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  HSC74001  Senecio triangularis M. A. Baker 1980-7-22 3106 Humboldt Near Grogan Hole. 1676 Comment
  HSC6129  Senecio vulgaris J. W. Johnson 1962-4-8 1215 Humboldt Arcata, Mad River Co. Park Comment
  UC1530712  Sequoia sempervirens R. W. Becking 1984-9-23 Humboldt Federation of Women's Grove Humboldt Co. Weott, Humboldt Redwoods State Park, Federation (Humboldt Co. Weott <sic>, Humboldt Redwoods State Park) Comment
  UC667965  Sequoia sempervirens Joseph P. Tracy 1935-12-8 14764 Humboldt near Korbel 304 Comment
  CAS-BOT-BC85846  Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-1-16 s.n. Humboldt Along State Route 299 from Arcata to Redding, Domonstration Forest, Simpson Timber Company. Comment
  SEINET3876370 Image available Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-1-16 s.n. Humboldt Along State Route 299 from Arcata to Redding, Demonstration Forest, Simpson Timber Company.; 0 Comment
  HSC40235  Sherardia arvensis J. P. Smith, J. O. Sawyer 1976-5-2 8618 Humboldt 1.5 mi. N of Willow Creek on Hwy. 96 61 Comment
  UC170179  Sidalcea asprella Harley P. Chandler June, 1901 1438 Humboldt Klamath River North Coast Ranges, Klamath River Comment
  UC502959  Sidalcea asprella Joseph P. Tracy 1928-6-24 8458 Humboldt between Bridgeville and head of Yager (South Yager Creek) 762 Comment
  UC170177  Sidalcea diploscypha Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5463 Humboldt near Elk Prairie; near Elk Prairie Comment
  JEPS50089  Sidalcea diploscypha Lincoln Constance 1934-5-23 613 Humboldt sw slope Upper end Look Prairie Bull Creek Region, South Fork Eel River, Look Prairie (South Fork Eel River, Bull Creek Region) 365 Comment
  CAS-BOT-BC205573  Sidalcea malachroides Alice Eastwood; John Thomas Howell 1937-6-23 4856 Humboldt 8 miles from Korbel on road to Maple Creek Comment
  HSC93948  Sidalcea malachroides Claire Golec 1999-6-2 Humboldt HB&M, old landing off of skid road, along ridgeline above Van Duzen River 427 Comment
  HSC35614  Sidalcea malviflora Thomas W. Nelson, B. Reinhardt 1975-7-30 2110 Humboldt Whiting Spring Comment
  UC502955  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1929-7-4 8626 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UC176988  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3595 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  HSC104350  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 19 Humboldt Kneeland 854 Comment
  POM161047  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-8-29 5394 Humboldt Dow s Prairie, around Humboldt Bay Comment
  CDA38659  Silene californica B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -C Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 Comment
  UC1198362  Silene californica Joseph P. Tracy 1898-7-13 267 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC668100  Silene californica Joseph P. Tracy 1935-6-23 13997 Humboldt French Camp Ridge 1066 Comment
  RSA78056  Silene californica P. A. Munz 1952-3-27 17800 Humboldt Boise Creek Public Camp west of Willow Creek. 366 Comment
  HSC39236  Silene gallica D. E. Anderson, J. P. Smith 1971-6-28 - 1267 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  CAS-BOT-BC389048  Silene laciniata subsp. californica Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC35749  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1993 Humboldt French Camp, 20 mi. E of Hwy. 101 Comment
  HSC79457  Silene laciniata subsp. californica Kenneth Clark 1980-6-14 665 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  JEPS53878  Sisymbrium officinale Lincoln Constance 1934-5-31 755 Humboldt along Bull Creek, from w boundary of park to Grasshopper Peak (Squaw Creek) Road, n side of Bull Creek, South Fork Eel River Bull Creek; Bull Creek Region, South Fork Eel River Comment
  HSC89540  Sisymbrium officinale M. Roantree 1985-4-28 26 Humboldt E side of Trinidad Head, along dirt road Comment
  UC1198796  Sisymbrium officinale Joseph P. Tracy 1932-7-17 10658 Humboldt Trinity Summit at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  UC1196378  Sisyrinchium bellum Joseph P. Tracy 1930-7-6 8838 Humboldt Kneeland Prairie 762 Comment
  HSC13907  Sisyrinchium bellum T. M. Mingo May 1965 Humboldt E of College Cove, N of Trinidad Comment
  POM299501  Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge 33 Comment
  UC666971  Smilacina stellata Joseph P. Tracy 1932-7-12 10455 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC673109  Solanum americanum Joseph P. Tracy 1940-10-17 16767 Humboldt 2 - 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  RSA246652  Solanum laciniatum Robert F. Thorne, Percy C. Everett 1965-8-5 35160 Humboldt Samoa Dunes. Edge of Humboldt Bay. 3 Comment
  RSA337440  Solanum laciniatum Robert F. Thorne, Percy C. Everett 1965-8-5 35160 Humboldt Samoa Dunes. 3 Comment
  POM319387  Solanum laciniatum Patricia Wilder 1968-8-21 4405 Humboldt Northern coastal arm of Humboldt Bay, ca 2 miles SW of Samoa. Humboldt Bay drainage area. 5 Comment
  CAS-BOT-BC365440  Solidago elongata Carl B. Wolf 1927-8-2 809 Humboldt Along the hills near the ocean 1 mile south of Orick Comment
  HSC48316  Solidago elongata Brad Klipfel 1973-8-3 306 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58093  Solidago elongata G. L. Clifton, Griswold 1979-8-1 12006 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC581770  Solidago elongata Joseph P. Tracy 1927-8-22 8346 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC365671  Solidago spathulata Harley P. Chandler 1901-5-1 1203 Humboldt North Coast Ranges. Humboldt Bay 30 Comment
  CHSC423  Solidago spathulata M. Anthony 1960-5-1 Humboldt Coastal. Comment
  SEINET5782991 Image available Solidago spathulata S. K. Harris 1939-9-5 Humboldt Samoa Comment
  HSC39962  Soliva sessilis Linda M. Barker 1976-4-13 1385 Humboldt 3 mi. W of Arcata Comment
  UC1199288  Soliva sessilis Joseph P. Tracy 1939-4-18 16217 Humboldt Garberville 152 Comment
  UC166083  Soliva sessilis J. P. Tracy 1901-5-5 1069 Humboldt immediate vicinity Eureka 0 Comment
  HSC89522  Sonchus asper M. Roantree 1985-6-10 79 Humboldt W side of Trinidad Head Comment
  SEINET200988  Sonchus oleraceus Joseph P. Tracy 1903-8-2 sn Humboldt At Eureka 0 Comment
  HSC63283  Sorbus scopulina M. A. Baker 1979-6-29 934 Humboldt Head of Oregon Creek Comment
  UCSB25395  Sparganium emersum Keefe, Joseph 1967-7-8 Humboldt East side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka 6 Comment
  HSC93471  Spartina densiflora Gordon Leppig 1998-8-6 992 Humboldt Arcata Marsh and Wildlife Sanctuary. 2 Comment
  HSC12566  Spergula arvensis D. La Conte 1970-8-10 3 Humboldt Comment
  HSC89910  Spergularia macrotheca Leonel Arguello 1989-6-24 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. End of Fernstrom-Root trail Comment
  CAS-BOT-BC390304  Spergularia macrotheca var. macrotheca S. K. Harris 1936-6-7 3225 Humboldt Eureka Comment
  CAS-BOT-BC149619  Spiraea douglasii Joseph P. Tracy 1937-7-17 15435 Humboldt Eureka 30 Comment
  CAS-BOT-BC149622  Spiraea douglasii G. A. Coleman 1901-7-20 s.n. Humboldt Near Arcata Comment
  POM17174  Spiraea douglasii J. B. Feudge 1923-7-23 57 Humboldt Trinidad. 9 Comment
  RSA85248  Spiraea douglasii F. W. Peirson 1923-7-11 3752 Humboldt 7 miles N of Arcata. Comment
  HSC41323  Spiraea splendens var. splendens Brad Klipfel 1974-8-2 520 Humboldt Horse Mtn. Comment
  UC176181  Spiranthes romanzoffiana Joseph P. Tracy 1913-9-9 4398 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  UC1196398  Spiranthes romanzoffiana Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges 914 Comment
  UC577329  Stachys ajugoides var. ajugoides W. E. Peacock 1936-8-1 Humboldt Arcata Bottom Arcata 9 Comment
  UC1239733  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-9 14881 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC153992  Stachys ajugoides var. rigida J. P. Tracy 1906-5-20 2466 Humboldt immediate vicinity Eureka 0 Comment
  UC577327  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  UC1239729  Stachys ajugoides var. rigida Joseph P. Tracy 1921-6-4 5810 Humboldt Carlotta Northern Coast Ranges 60 Comment
  UCLA71142  Stachys ajugoides var. rigida Joseph P. Tracy 1938-8-21 16131 Humboldt in front of s end Stone Lagoon (along coast); Dry Lagoon 3 Comment
  HSC14421  Stachys rigida J. F. Knezevich 1968-5-14 436 Humboldt 13 mi. S of Ferndale at Cape Mendocino 0 Comment
  UCD126043  Stachys rigida var. rigida Joseph P. Tracy 16-19 Jul 1930 9012 Humboldt South Fork Mountain; opening in fir forest nera McKay Camp. 1676 Comment
  RSA168872  Stellaria crispa Joseph P. Tracy 1950-7-15 19042 Humboldt Moist ground under maple trees, Raccoon Creek, near mouth, 1 mile NE of Patterson s Ranch. Willow Creek vicinity. Comment
  RSA67572  Stellaria crispa P. A. Munz 1951-7-15 16550 Humboldt 5 miles N of Willow Creek 305 Comment
  HSC4271  Stellaria media S. R. Johnson 1965-3-23 17 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC84043  Stellaria media L. P. Janeway 1983-4-16 228 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  JEPS6211  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt n.e. Hawkins Bar (Happy Camp Mt., Trinity Summit Range); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  HSC32547  Stephanomeria virgata Thomas W. Nelson 1973-9-3 1122 Humboldt McKeown Ranch N of Dinsmore Comment
  CAS-BOT-BC375781  Stephanomeria virgata J. Clausen 1932-9-19 705 Humboldt Between Miranda and Redway, 13.2 miles south of Weott Comment
  HSC102188  Stipa nelsonii var. dorei M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1102 Humboldt Andy's Camp 1564 Comment
  HSC58416  Stipa occidentalis var. californica Griswold, Butler 1979-7-12 7217 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC229826  Streptanthus tortuosus Joseph P. Tracy 1922-9-3 6106 Humboldt rocky bluffs at Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  JEPS54025  Streptanthus tortuosus var. orbiculatus W. L. Jepson Jul 16 1902-Jul 23 1902 2118 Humboldt Trinity Summit 2133 Comment
  UC302043  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-5-15 7477 Humboldt Kneeland Prairie Northern Coast Ranges 762 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
  HSC99005  Streptanthus tortuosus var. tortuosus Cara Witte 2008-6-15 730 Humboldt Coldspring Camp. 1460 Comment
  HSC102070  Suksdorfia ranunculifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 972 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC54882  Swertia radiata G. L. Clifton, Griswold 1979-7-25 10883 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC99468  Symphoricarpos mollis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 122 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1239537  Symphoricarpos mollis Joseph P. Tracy 1908-6 2782 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  UC1222982  Symphyotrichum hendersonii Joseph P. Tracy 1941-8-24 17040 Humboldt near McKay camp; South Fork Mountain 1676 Comment
  HSC99571  Symphyotrichum spathulatum var. spathulatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 236 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  JEPS35821  Symphyotrichum subspicatum Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8966 Humboldt 9.5 mi n and w, s of Cape Mendocino Petrolia; Cape Mendocino Comment
  RSA46853  Symphytum asperum Doris K. Kildale 1927-6-26 3588 Humboldt Wildcat Grade near Ferndale. Comment
  HSC26305  Synthyris cordata Thomas W. Nelson 1971-4-24 403 Humboldt Adjacent to E Fork of Willow Creek Comment
  JEPS26261  Synthyris reniformis Joseph P. Tracy 1926-2-28 7379 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  HSC21150  Synthyris reniformis R. D. Modafferi 1965-3-13 13 Humboldt 1.2 mi. N of Trinidad on Trinity St. 0 Comment
  HSC26095  Synthyris reniformis Tim Baroni 1973-1-2 Humboldt 1.9 mi. above Angel Ranch on the road to Snow Camp 793 Comment
  HSC100684  Synthyris reniformis var. cordata Carl C. Marshall Jan 1887 354 Humboldt Liscom's Hill. Comment
  HSC6252  Tanacetum bipinnatum D. B. Bader 1963-5-1 2 Humboldt Second of Clam Beach Lagoons, W of Hwy. 101, along R.R. tracks Comment
  JEPS37129  Tanacetum camphoratum William S. Cooper 1925-7-30 123 Humboldt Little River Comment
  RSA0049665  Taraxacum laevigatum Dean Wm. Taylor 2011-5-4 21112 Humboldt Alderpoint Road in the vicinity of the Snowline Fox Farm (Larabee Valley quadrangle placename), vicinity of the road crossing of Knack Creek 341 Comment
  HSC32945  Tauschia kelloggii Thomas W. Nelson, James Nelson 1973-5-28 956 Humboldt McKeown Ranch N of Dinsmore Comment
  UC154074  Tauschia kelloggii Joseph P. Tracy 1908-6-7 2607 Humboldt on Mad River at Maple Creek; Northern Coast Ranges, Mad River, Maple Creek 152 Comment
  HSC1590  Taxus brevifolia J. P. Tracy 1927-3-27 7866 Humboldt Willow Creek Canyon 762 Comment
  HSC20433  Tellima grandiflora Elrid H. Spinas 1948-6-16 63 Humboldt Horse Mtn. Comment
  HSC32947  Tellima grandiflora Thomas W. Nelson, James Nelson 1973-5-28 960 Humboldt McKeown Ranch N of Dinsmore Comment
  UC161580  Tellima grandiflora Joseph P. Tracy 1911-6-4 3214 Humboldt 5 mi from coast Little River; Northern Coast Region 121 Comment
  UC1198811  Thlaspi montanum var. montanum Joseph P. Tracy 1939-4-29 16234 Humboldt near Weitchpec (along Trinity River); , near Weitchpec 121 Comment
  UCR27987  Thuja plicata A. C. Sanders 1981-8-6 2309 Humboldt Russ Park, just south of Ferndale. 61 Comment
  CAS-BOT-BC88326  Thysanocarpus curvipes Joseph P. Tracy 1938-5-1 15736 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  RSA0039379  Thysanocarpus curvipes var. curvipes John H. Thomas 1968-4-21 14363 Humboldt Near mouth of Bluff Creek about 6 miles NE of Weitchpec near Bluff Creek campground. 140 Comment
  HSC99404  Tiarella trifoliata var. unifoliata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 53 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS49704  Tiarella trifoliata var. unifoliata W. L. Jepson 1932-7-29 16441 Humboldt Weott Comment
  UC1212146  Tiarella trifoliata var. unifoliata Francia Chisaki and Helen K. Sharsmith 1959-8-22 4753 Humboldt bog at Happy Camp Happy Camp (just over Trinity County line); Inner North Coast Ranges 914 Comment
  HSC38208  Tolmiea diplomenziesii Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  UC1224693  Tolmiea diplomenziesii D. E. Anderson and B. D. Rogers 1964-5-1 1564 Humboldt n of Humboldt State College campus (Jolly Giant creek) Comment
  CAS-BOT-BC447611  Tolmiea menziesii J. P. Tracy 1900-5-30 832 Humboldt Immediate vicinity of Eureka 152 Comment
  UC1561282  Torilis arvensis Barbara Ertter with Thomas J. Delendick 1987-5-16 6916 Humboldt Hwy 299 roadside ca 8 mi e Arcata (9 1/2 mi w of Lord Ellis summit); w of Lord Ellis summit Comment
  UC1197063  Torilis arvensis subsp. arvensis Mrs. Archie Cathey July 1933 Humboldt near Miranda (at Cathey Ranch) 304 Comment
  UCD116958  Toxicodendron diversilobum Linda M. Barker 1976-9-3 1697 Humboldt 3 miles west of Arcata. Comment
  HSC63067  Tradescantia ohiensis David Wheeler 1979-5-17 115 Humboldt Stagecoach Rd., 1 mi. from the Trinidad Post Office Comment
  HSC74426  Triantha glutinosa Gail Newton 1980-8-10 2055 Humboldt Near Blake Mtn. 1707 Comment
  HSC56957  Triantha occidentalis subsp. occidentalis Overton, Butler 1979-7-23 9470 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  JEPS63108  Trichostema lanceolatum Milo S. Baker 1923-8-25 332 Humboldt highway near Garberville; North Coast Comment
  JEPS63133  Trichostema lanceolatum Lincoln Constance 1934-6-14 874 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 304 Comment
  HSC35710  Trichostema laxum Thomas W. Nelson, B. Reinhardt 1975-7-30 2094 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  JEPS63140  Trichostema laxum W. L. Jepson 1921-9-11 9465 Humboldt DeVoy Flat, South Fork Eel River Comment
  UC162685  Trichostema laxum Joseph P. Tracy 1911-7-10 3492 Humboldt Valley of Trinity River at mouth of Willow Creek Northern Coast Ranges 152 Comment
  HSC53982  Trichostema oblongum Griswold, Butler 1979-7-11 7057 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  CHSC31274  Trientalis latifolia Mark Stopher 1980-5-20 70 Humboldt In dense forest along the Van Duzen River near Rte 36. Comment
  HSC17943  Trientalis latifolia Yarick 1960-8-3 Humboldt K&K. Kruger Cr. Comment
  HSC95824  Trientalis latifolia Kevin Thomas 2004-4-26 16 Humboldt Jacoby Creek Rd. Comment
  UCD107571  Trifolium albopurpureum W. Williams 1951-1 s.n. Humboldt Keithly Ranch. Comment
  UC160920  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1906-7-4 2535 Humboldt near Hydesville (Yager Creek); Northern Coast Ranges 60 Comment
  UC1197054  Trifolium bifidum var. decipiens Joseph P. Tracy 1948-6-13 18027 Humboldt near Burr Creek, 5 miles SE of Bridgeville, Hillside Comment
  UC162784  Trifolium campestre J. P. Tracy 1906-6-25 2512 Humboldt immediate vicinity Eureka 0 Comment
  UC162857  Trifolium cyathiferum Joseph P. Tracy 1908-6 2827 Humboldt nw slope Buck Mtn; Northern Coast Ranges 1219 Comment
  HSC15111  Trifolium depauperatum Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  JEPS79998  Trifolium dubium Joseph P. Tracy 1925-5-17 6971 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  POM118629  Trifolium dubium Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UCD108882  Trifolium dubium W. A. Williams 1951-6-14 s.n. Humboldt 3 miles E of Hydesville, Bech Ranch swale. Comment
  RSA135394  Trifolium eriocephalum subsp. eriocephalum Volney Rattan 1878-1 s.n. Humboldt Kneeland Prairie. Comment
  HSC100534  Trifolium fucatum Carl C. Marshall Mar 1886 18 Humboldt Hills. Comment
  HSC31744  Trifolium fucatum Donald Spalinger 1974-5-12 60 Humboldt Bald Hills Rd., 1.5 mi. E from junction with Hwy. 101 229 Comment
  UCD23426  Trifolium incarnatum Eileen Burger 1977-5-8 30 Humboldt Crimson clover, flowers in heads. North oak woodland. West side of Hwy 101, 1/4 mile north of Garberville on frontage road. Comment
  HSC48764  Trifolium longipes Brad Klipfel 1973-6-10 100 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC45137  Trifolium microcephalum R. Sutherland 1978-6-1 4 .1678 Humboldt 213 Comment
  CHSC10113  Trifolium microdon J. W. Johnson 1962-5-13 1354 Humboldt Arcata. On stabilized sand of ridge 3, Christenson Farm, Samoa Peninsula. Comment
  UC1223351  Trifolium microdon Joseph P. Tracy 1938-6-8 15867 Humboldt near Samoa; Humboldt Bay 6 Comment
  HSC15223  Trifolium obtusiflorum J. E. Lankila 1962-5-6 15 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  UC495684  Trifolium obtusiflorum Joseph P. Tracy 1932-5-22 10119 Humboldt between Miranda and Redway (South Fork of Eel River); Northern Coast Ranges 91 Comment
  RSA168849  Trifolium pratense Joseph P. Tracy 1934-8-6 13558 Humboldt Near Blue Lake, along Mad River Comment
  UC1103451  Trifolium variegatum var. melananthum J. P. Tracy 1898-4 158 Humboldt Eureka vicinity Northern Coast Region 0 Comment
  UC1197560  Trifolium variegatum var. variegatum Joseph P. Tracy 1927-5-8 7993 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  HSC32919  Trifolium willdenovii Thomas W. Nelson, James Nelson 1973-5-28 966 Humboldt McKeown Ranch N of Dinsmore Comment
  UC303199  Trifolium willdenovii Joseph P. Tracy 1925-5-17 6967 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC15190  Trifolium wormskioldii R. E. Hafenfeld 1965-5-9 24 Humboldt Jct. County Rd. and Gold Bluff Beach Rd. Comment
  UC303195  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6274 Humboldt Big Lagoon Northern Coast Region 6 Comment
  RSA168852  Trifolium wormskioldii Joseph P. Tracy 1950-6-8 18714 Humboldt Near the Sand Cut. Wild Cat Road, 2 miles south of Ferndale. Comment
  RSA168905  Trifolium wormskioldii Joseph P. Tracy 1938-7-24 16087 Humboldt Corner of Pacific and A Streets. Eureka. Comment
  UC1223518  Trifolium wormskioldii Joseph P. Tracy 1938-7-11 16047 Humboldt Samoa Sand Dunes Comment
  UC303197  Trifolium wormskioldii Joseph P. Tracy 1925-5-30 7044 Humboldt McClellan Mtn Northern Coast Ranges 822 Comment
  UC275566  Triglochin maritima Joseph P. Tracy 1924-7-13 6718 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UCR121761  Triglochin maritima George K. Helmkamp, E. A. Helmkamp 2001-7-8 6995 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC36439  Triglochin maritima John Rehling 1974-7-8 8 Humboldt Big Lagoon Bog Comment
  UC1197809  Trillium albidum Joseph P. Tracy 1939-5-14 16285 Humboldt lower foothills of n.w. slope Buck Mt. 762 Comment
  HSC96778  Trillium ovatum M. Mesler 2006-6-6 611 Humboldt Big Hill Rd. 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  UC1197828  Trillium ovatum Joseph P. Tracy 1913-3-9 4019 Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  SEINET10275388  Trillium ovatum Unknown 1963-2-24 52 Humboldt altitude ca 250 ft, floor of Redwood Forest; Nelson Grove near bank of Eel River, Humboldt State Park Comment
  UCD19981  Trillium ovatum C. H. Lamoureux; R. Gankin 1956-3-17 1042 Humboldt Near southern boundary of Jensen Grove, on Hwy 101 between Meyers and Miranda. Comment
  HSC100892  Trillium sessile var. californicum Carl C. Marshall Apr 1886 122 Humboldt Thickets near bay. Comment
  SEINET10906254  Triodanis biflora Chandler CHANDLER 1415 Humboldt Klamath River 427 Comment
  SEINET10459929  Triodanis perfoliata Unknown Blasdale 5888 B Humboldt KLAMATH RIVER 335 Comment
  UC1198039  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1904-4-24 2019 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Humboldt Bay Comment
  UC146241  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1906-6-10 2477 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CDA20454  Triphysaria eriantha subsp. eriantha P. Haggard 2003-5-11 PDR P 070982 Humboldt Northwestern California; around Humboldt Bay. 0 Comment
  HSC95575  Triphysaria eriantha subsp. eriantha Andrea Pickart 2002-3-29 17 Humboldt Samoa Dunes 0 Comment
  JEPS26218  Triphysaria eriantha subsp. rosea H. E. Parks and Joseph P. Tracy 1927-4-24 7946 Humboldt Bucksport 6 Comment
  SBBG68601  Triphysaria versicolor subsp. faucibarbata S. W. Hutchinson -Apr-1927 106 Humboldt Humboldt County [no specific locality] 30 Comment
  JEPS10442  Triphysaria versicolor subsp. versicolor W. L. Jepson 1902-6 1919 Humboldt fields about Eureka (<Expedition from Ukiah to the Hupa Indian Reservation>); fields about Eureka Comment
  RSA10082  Trisetum canescens Joseph P. Tracy 1932-7-16 10614 Humboldt Trinity Summit 1524 Comment
  UC1056012  Trisetum canescens W. L. Colwell 1954-10-12 10 Humboldt 4 mi ne Blocksburg 1127 Comment
  HSC32517  Trisetum cernuum D. E. Anderson, S. Dowty, T. Nelson 1972-6-17 5711 Humboldt McKeown Ranch, N of Dinsmore Comment
  JEPS75418  Trisetum cernuum W. L. Jepson 1932-7-29 16438 Humboldt Weott Comment
  UC1103151  Trisetum cernuum J. P. Tracy 1900-5-22 800 1/2 Humboldt immediate vicinity Eureka 0 Comment
  HSC76431  Triteleia bridgesii Teresa Prendusi 1981-7-9 232 Humboldt Near Cedar Camp 1256 Comment
  HSC49994  Triteleia bridgesii M. A. Baker 1979-6-6 773 Humboldt N facing slope adjacent to rd. to Hospital Mtn. Comment
  RSA256582  Triteleia bridgesii D. E. Anderson 1972-6-20 5725 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  CAS-BOT-BC519143  Triteleia hyacinthina M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles north of Garberville Comment
  HSC68611  Triteleia laxa Jacqueline Greenleaf 1980-7-16 240 Humboldt Near Buck Mountain. 1250 Comment
  UC1197717  Triteleia laxa Joseph P. Tracy 1938-6-17 15966 Humboldt between Petrolia and coast; Domingo Hill 152 Comment
  HSC94180  Triticum aestivum Gordon Leppig, Kai Neander 2000-4-14 1293 Humboldt Arcata, E of the Community Center parking lot 3 Comment
  HSC95905  Tsuga heterophylla Will Ferrand 2001-6-17 6 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  SBBG11120  Tsuga heterophylla D. E. Breedlove 1961-7-4 669 Humboldt US Hwy 299, 4.1 mi E of the N fork of the Mad River 609 Comment
  UC1222167  Umbellularia californica Joseph P. Tracy 1950-12-10 18600 Humboldt vicinity of Carlotta 30 Comment
  POM131979  Vaccinium arbuscula Joseph P. Tracy 1906-4-29 2425 Humboldt Eureka. Comment
  RSA46868  Vaccinium cespitosum Doris K. Kildale 1927-7-10 3725 Humboldt Gans Prairie, Bald Hills. Comment
  UC22192  Vaccinium cespitosum J. P. Tracy 1899-3 Humboldt Eureka Comment
  UC562345  Vaccinium cespitosum Joseph P. Tracy 1935-7-26 14270 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UC562347  Vaccinium cespitosum Joseph P. Tracy 1933-7-16 12792 Humboldt near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC562349  Vaccinium cespitosum Joseph P. Tracy 1930-8-17 9161 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC98063  Vaccinium membranaceum Cara Witte 2007-7-12 524 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  HSC99395  Vaccinium membranaceum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 44 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC199311  Vaccinium ovatum Hubert O. Jenkins 1943-8-1 s.n. Humboldt In dry rocky bed of Eel River, Richardson Grove Comment
  CAS-BOT-BC199321  Vaccinium ovatum Elmer I. Applegate 1923-9-10 3986 Humboldt Martin's Ferry, Klamath River Comment
  HSC34628  Vaccinium ovatum Lon Hall 1975-3-29 304 Humboldt Near Shelter Cove 488 Comment
  JEPS25685  Vaccinium ovatum P. C. Hutchison 1961-5-22 2006 Humboldt 14.3 mi e Arcata junction with U.S. Highway 101 (on U.S. Highway 299) Comment
  CAS-BOT-BC199412  Vaccinium parvifolium E. K. Balls 1949-7-11 13973 Humboldt 35 miles west of Willow Creek on Hwy 299 to Arcata 152 Comment
  CAS-BOT-BC199419  Vaccinium parvifolium C. B. Wolf 1930-10-26 1768 Humboldt Along the Redwood Highway 3 mi. so. of Del Norte Co. line 152 Comment
  CAS-BOT-BC199422  Vaccinium parvifolium Elmer I. Applegate 1923-9-12 3993 Humboldt Above Trinidad Comment
  HSC41244  Vaccinium parvifolium Brad Klipfel 1974-5-27 386 Humboldt Horse Mountain Comment
  UC22217  Vaccinium parvifolium Harley P. Chandler May 1901 1182 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC55023  Vaccinium uliginosum Overton, Butler 1979-7-31 11435 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC602496  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1932-7-13 10505 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC76045  Vancouveria hexandra Mrs. H. C. Cantelow 1936-5-17 s.n. Humboldt 4.5 miles east of Orick. Comment
  CAS-BOT-BC76056  Vancouveria hexandra Greg de Nevers 2001-4-17 12244 Humboldt Humboldt Redwoods State Park. 91 Comment
  UC502924  Vancouveria hexandra Joseph P. Tracy 1932-7-15 10620 Humboldt near Corral Prairie (Trinity Summit); Klamath Mountains, , near Corral Prairie 1524 Comment
  CAS-BOT-BC76048  Vancouveria hexandra D. E. Breedlove 1962-6-8 3068 Humboldt Along U.S. Highway 101, 8 miles north of Orick. 60 Comment
  HSC3376  Vancouveria hexandra J. R. Good 1964-5-15 34 Humboldt 1.25 mi. up road along Jolly Giant Creek E of HSU Comment
  UC1196347  Vancouveria hexandra Joseph P. Tracy Jul 16 1930-Jul 19 1930 8968 Humboldt in fir forest near McKay Camp South Fork Mountain; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC70723  Vancouveria planipetala Gail Newton 1980-7-14 1517 Humboldt Near Deadman Ridge 1097 Comment
  HSC72636  Vancouveria planipetala J. P. Smith 1977-7-3 9247 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  HSC75554  Vancouveria planipetala J. O. Sawyer, R. J. Cole 1977-7-3 3003 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  RSA24190  Vancouveria planipetala C. B. Wolf 1941-3-2 9984 Humboldt N. Coast Range. Bull Creek-Petrolia Road. 12 mi. W. of Redwood Highway. 457 Comment
  UC146078  Vancouveria planipetala Joseph P. Tracy 1908-6-23 2678 Humboldt near Grizzly Gulch; Northern Coast Ranges, near Grizzly Gulch 152 Comment
  UC1173644  Veratrum insolitum Joseph P. Tracy 1929-7-4 8636 Humboldt French Camp Ridge 1066 Comment
  SEINET1008963  Verbena lasiostachys Alma L. Moldenke, Harold N. Moldenke 1975-1 30232 Humboldt Van Duzen River valley east of Bridgeville, Humboldt County, California. 732 Comment
  HSC102000  Veronica americana M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 899 Humboldt Patterson Meadows 1566 Comment
  HSC21216  Veronica persica Richard Steele 1962-3-18 9 Humboldt 0.25 mi. W of HSC campus 15 Comment
  HSC28231  Veronica scutellata John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  UCD20170  Veronica serpyllifolia J. M. Tucker 1948-9-5 1866 Humboldt Near Hwy 101, 3.5 miles north of Myers. Comment
  HSC98838  Vicia americana var. americana Cara Witte 2008-7-16 914 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC709405  Vicia americana var. americana Joseph P. Tracy 1935-5-26 13908 Humboldt Iaqua 609 Comment
  UC709400  Vicia americana var. americana Joseph P. Tracy 1933-7-26 12905 Humboldt near 5350 ft Grouse Mt. summit; Grouse Mt. Comment
  POM278062  Vicia angustifolia Lyman D. Benson 1928-7-12 461 Humboldt Weott Ranger Station 61 Comment
  UC709409  Vicia faba Joseph P. Tracy 1940-4-7 16527 Humboldt Bayside 15 Comment
  HSC15270  Vicia gigantea W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir Comment
  RSA34309  Vicia hirsuta C. Kistner 1935-5-5 s.n. Humboldt Arcata Comment
  UC162859  Vicia hirsuta J. P. Tracy 1906-6-29 2513 Humboldt immediate vicinity Eureka 0 Comment
  HSC38483  Vicia sativa subsp. nigra D. E. Anderson, J. P. Smith 1971-6-18 - 1063 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  HSC15277  Vicia sativa subsp. sativa N. R. Waite 1965-5-21 53 Humboldt W edge of Humboldt State College Campus. Comment
  HSC15279  Vicia sativa subsp. sativa J. L. Baker 1965-4-2 25 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. 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
  HSC21770  Viola adunca J. F. Knezevich 1968-5-14 443 Humboldt 11 mi. S of Ferndale on the road to Cape Mendocino 305 Comment
  HSC21775  Viola adunca Richard Spjut 1968-10-26 205 Humboldt Near boat launching area at Big Lagoon Comment
  HSC73697  Viola bakeri M. A. Baker 1980-7-19 2998 Humboldt Near Bret Hole. 1814 Comment
  SEINET200800 Image available Viola bakeri J. P. Tracy 1932-7-15 10596 Humboldt Trinity Summit Klamath Mts. Open ground near melting snow. 1829 Comment
  RSA0006436  Viola californica Milo S. Baker 1946-6-14 11492 Humboldt South Fork Mt., at Miller Spring. 1524 Comment
  HSC38515  Viola cuneata D. E. Anderson, J. P. Smith 1971-6-18 - 1085 Humboldt Horse Mtn. Comment
  HSC48412  Viola glabella Brad Klipfel 1973-6-10 84 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS50368  Viola glabella W. L. Jepson 1902-7-16 2057 Humboldt Trinity Summit 2133 Comment
  RSA21092  Viola hallii Carl B. Wolf 1937-6-14 8820 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  RSA254792  Viola hallii Thomas W. Nelson 1974-5-7 1234 Humboldt Beside the airstrip at Kneeland Prairie. Comment
  UC1103556  Viola macloskeyi Joseph P. Tracy 1933-7-16 12780 Humboldt South Fork Mountain at McKay Camp McKay Camp; South Fork Mountain, McKay Camp 1676 Comment
  UC502950  Viola macloskeyi Joseph P. Tracy Jul 16 1930-Jul 19 1930 8974 Humboldt South Fork Mountain at McKay Camp McKay Camp; Northern Coast Ranges, South Fork Mountain, McKay Camp 1676 Comment
  UC66206  Viola ocellata Mrs. M. H. Manning June 1902 Humboldt Hupa Comment
  HSC83417  Viola ocellata R. N. Raynor 1935-4-15 Humboldt Fort Seward Comment
  RSA21088  Viola praemorsa subsp. linguifolia Carl B. Wolf 1937-6-14 8816 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  HSC39683  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1976-6-16 2738 Humboldt Along old trail from lookout to Blocksburg 1524 Comment
  UC164816  Viola sempervirens Joseph P. Tracy 1901-1-1 978 Humboldt immediate vicintiy of Eureka 0 Comment
  HSC34806  Viola sempervirens Lon Hall 1975-3-27 301 Humboldt Near Shelter Cove, above Bear Creek 366 Comment
  JEPS50231  Viola sempervirens Lincoln Constance 1934-5-31 760 Humboldt Bull Creek Flat along Bull Creek (from w boundary of Park to Grasshopper Peak (Squaw Creek)road, n side of creek); Bull Creek Region, South Fork Eel River Comment
  UC668241  Viola sheltonii Joseph P. Tracy 1933-7-16 12769 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  HSC60141  Vitis californica M. A. Baker 1977-6-6 368 Humboldt Hoopa Comment
  RSA46711  Vitis californica Doris K. Kildale 1926-5-2 1864 Humboldt Willow Creek Flat. Comment
  HSC69872  Vulpia bromoides Thomas W. Nelson 1978-5-29 4094 Humboldt On McKeown Ranch N of Dinsmore. 762 Comment
  HSC89549  Vulpia bromoides M. Roantree 1985-5-7 38 Humboldt W side of Trinidad Head, along trail. Comment
  HSC9914  Vulpia microstachys C. S. Chavez 1965-5-1 64 Humboldt On Hwy. 299 2 mi. E of Willow Creek. Comment
  HSC9923  Vulpia myuros R. D. Modafferi 1965-5-13 72 Humboldt 1.6 mi. N of Trinidad on Trinity St. 305 Comment
  RSA244994  Vulpia myuros D. E. Anderson 1970-5-21 5078 Humboldt Scotia Bluffs Comment
  UC525655  Vulpia myuros var. hirsuta Joseph P. Tracy 1933-6-13 12598 Humboldt w of Hoopa (near summit on road to Bair's); Hoopa Mountain 1066 Comment
  BLMAR153  Whipplea modesta Donald Hazlett 1994-6-7 153 Humboldt King range, E-facing slope off hourse mountain ridge Comment
  JEPS43494  Whipplea modesta Lincoln Constance 1934-5-31 761 Humboldt along Bull Cr. from w boundary of Park to Grasshopper Pk. (Squaw Crk.) rd. (n side of cr.); South Fork Eel River, Bull Creek Region, Bull Cr. flat Comment
  HSC57125  Wyethia angustifolia Overton, Butler 1979-7-25 9885 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  JEPS32068  Wyethia angustifolia Joseph P. Tracy 1933-8-6 12937 Humboldt French Camp Ridge 1066 Comment
  HSC71800  Wyethia longicaulis M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  HSC73870  Wyethia longicaulis Gail Newton 1980-7-14 1462 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC82033  Wyethia longicaulis Thomas W. Nelson, James Nelson 1980-6-10 5401 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  UC673078  Xanthium strumarium Joseph P. Tracy 1940-10-5 16747 Humboldt Trinidad 3 Comment
  SD51273  Xerophyllum tenax Darley F. Howe 1961-8-2 3123 Humboldt 24 miles east of Orick, on Bald Mountain Road. Comment
  RSA256707  Xerophyllum tenax D. E. Anderson 1972-6-10 5728 Humboldt Along the Redwood Valley - Hoopa Road east of the summit Comment
  SEINET12197025  Zauschneria californica E. A. York 1990-1-10 2675 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC15746  Zigadenus micranthus D. E. Anderson 1965-6-1 3779 Humboldt Near Brush Mtn. lookout 1216 Comment
  UC275516  Zigadenus micranthus var. micranthus Joseph P. Tracy 1924-7-4 6521 Humboldt Valley South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment



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