Search Results — 2000 specimen records retrieved (1387 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC102514  Abies concolor M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1500 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC98922  Abies concolor var. lowiana Cara Witte 2008-6-13 719 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  UC55645  Abies magnifica var. shastensis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 58121 Humboldt Trinity summit North Coast Ranges, Trinity Summit (ne Humboldt and nw Trini Comment
  CAS-BOT-BC73463  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Six Rivers National Forest - extension of known ridge, Horse Trail Ridge, southwest slope. 1828 Comment
  SD42285  Abronia latifolia Carl B. Wolf 1937-9-9 3064 Humboldt Coast, 2 miles south of Cape Mendocino 6 Comment
  HSC69787  Abronia latifolia R. Kalal 1979-5-27 35 Humboldt Along Samoa Blvd. 3 Comment
  UC673029  Abronia umbellata subsp. breviflora Joseph P. Tracy 1940-9-9 16721 Humboldt Mouth of Little River 3 Comment
  CAS-BOT-BC436976  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile northwest of Fieldbrook Comment
  RSA202444  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt Ridge just SE of Forest Service Nursery, 2 miles SE of Grannell and 4 miles E of Hwy 101 Comment
  HSC37924  Achillea millefolium Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC57983  Achillea millefolium G. L. Clifton, Griswold 1979-7-31 11717 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  SD41358  Achillea millefolium Edith A. Purer 1932-7-30 4674 Humboldt South of Orick. Comment
  UC1080536  Achillea millefolium S. S. Tillett 1956-7-6 624 Humboldt along, (in clear area along ridge 12.5 mi from Orleans) Bar Shanty Road; Orleans 1173 Comment
  RSA50430  Achillea millefolium var. arenicola G. R. Campbell 1949-6-28 s.n. Humboldt Collected near pool on Administration Grounds of Botanic Gardens, grown under prop. No. 5487 (seed collected by P. C. Everett, July 20, 1947, on coastal sand dunes, mouth of little river, along hwy 101, north of Eureka) Comment
  HSC70631  Achlys triphylla R. York 1980-5-18 585 Humboldt Near Black Mtn. 390 Comment
  JEPS47754  Achlys triphylla subsp. triphylla Lincoln Constance 1934-6-1 773 Humboldt Bull Cr. rd. between Dyerville Bridge and Bull Creek flat grove (mouth of Bull Cr.); S. Fork Eel R., Bull Creek Region 45 Comment
  UC526748  Achnatherum lemmonii Joseph P. Tracy 1928-6-24 8466 Humboldt Valley of South Yager Creek 762 Comment
  SEINET2429225  Achyrachaena mollis Joseph P. Tracy 1932-6-26 10271 Humboldt Fort Baker Ranch 760 Comment
  HSC90187  Acmispon wrangelianus Jean Hanson 1980-5-24 54 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  HSC55677  Actaea rubra Overton, Butler 1979-7-26 9924 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  JEPS60374  Actaea rubra W. L. Jepson 1902-7-16 2055 Humboldt Trinity Summit 2133 Comment
  CAS-BOT-BC391594  Actaea spicata var. arguta Carl B. Wolf 1937-8-11 9148 Humboldt North Coast Range, Van Duzen River, 2 7/10 mi. W. of Dinsmores 457 Comment
  HSC97952  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  RSA12438  Adenocaulon bicolor Carl B. Wolf 1934-7-2 5855 Humboldt 2 mi. from Bald Mt. on rd. to Korbel. 762 Comment
  RSA687732  Adiantum aleuticum Maude Minthorn s.n. Humboldt Ferndale Comment
  UC249587  Aesculus californica Joseph P. Tracy 1921-10-22 5978 Humboldt Bridgeville; Northern Coast Ranges 304 Comment
  HSC74197  Agastache urticifolia M. A. Baker 1980-7-22 3126 Humboldt Near Grogan Hole. 1676 Comment
  RSA46781  Ageratina occidentalis Doris Kildale Gillespie 1937-8-12 15253 Humboldt South Fork Mountain. Comment
  RSA15581  Ageratina occidentalis Carl B. Wolf 1927-8-27 s.n. Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  HSC4594  Agoseris grandiflora D. E. Anderson 1962-7-14 2257 Humboldt Along Barry Ridge Rd. Comment
  UC1222931  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19233 Humboldt near Clear Lake; Grouse Mountain 1524 Comment
  UC165754  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1909-8-1 3070 Humboldt edge of grain field Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC450000  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear River Ridge; Northern Coast Ranges 304 Comment
  UC1103368  Agrostis alba J. P. Tracy 1900-9-2 933 1/2 Humboldt immediate vicinity Eureka 0 Comment
  UC249861  Agrostis alba Joseph P. Tracy 1924-8-17 6819 Humboldt wet places in woods Northern Coast Ranges, Trinidad 60 Comment
  SACT000115  Agrostis alba var. palustris D. Shillingbury 1963-5-11 Humboldt salt or brackish marshes along the coast. bog edge Comment
  HSC98818  Agrostis capillaris Cara Witte 2007-7-25 575 Humboldt Waterhole off FS Road 5N10. 2 mi E of intersection with National Forest 1. 1369 Comment
  CAS-BOT-BC127279  Agrostis exarata Joseph P. Tracy 1927-6-19 8193 Humboldt Northern Coast Region. Big Lagoon. 6 Comment
  CAS-BOT-BC127280  Agrostis exarata Joseph P. Tracy 1934-7-2 13296 Humboldt Trinidad. 60 Comment
  CAS-BOT-BC127292  Agrostis exarata Joseph P. Tracy 1935-5-25 13857 1/2 Humboldt Fort Seward. 106 Comment
  POM160889  Agrostis exarata Joseph P. Tracy 1918-7-21 5085 Humboldt Around Humboldt Bay. Humboldt Hill 91 Comment
  UC191415  Agrostis exarata Joseph P. Tracy 1902-7-4 1757 Humboldt Eureka Northern Coast Region 0 Comment
  UC556417  Agrostis exarata Palmer Stockwell 1934-7-13 64 Humboldt Clam Beach Comment
  UC188818  Agrostis exarata Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5885 Humboldt Francis Range Comment
  HSC90001  Agrostis hallii Leonel Arguello 1989-8-20 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, alongside N Dune loop trail. Comment
  UCSC000097  Agrostis hallii H. S. Yates 1936-6-16 5674 Humboldt 1 mile N.E. of Samoa Samoa - Eureka 3 Comment
  HSC58756  Agrostis idahoensis Overton, Butler 1979-7-24 9800 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  SEINET10810391  Agrostis longiligula Joseph P. Tracy 1902-7-4 Tracy 1757 Humboldt 0 Comment
  CAS-BOT-BC138874  Agrostis microphylla Joseph P. Tracy 1935-5-25 13857 Humboldt Fort Seward. 106 Comment
  CAS-BOT-BC138875  Agrostis microphylla A. A. Heller 1923-7-8 13772 Humboldt Near Fortuna. Comment
  CAS-BOT-BC139132  Agrostis oregonensis Joseph P. Tracy 1934-7-18 13452 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  HSC58795  Agrostis oregonensis Overton, Butler 1979-7-31 11462 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1145065  Agrostis oregonensis Joseph P. Tracy 1950-7-31 19243 Humboldt swampy places near summit; Grouse Mountain 1615 Comment
  CAS-BOT-BC139060  Agrostis pallens Doris K. Kildale 1925-8-17 1261 Humboldt Trinity Summit. 1917 Comment
  POM207333  Agrostis pallens Davy Blasdale 1899-05 5723 Humboldt Supply Creek Comment
  CAS-BOT-BC138631  Agrostis stolonifera Malcom A. Nobs; S. Galen Smith 1949-8-3 1168 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  SEINET200839 Image available Agrostis stolonifera Joseph P. Tracy 1909-7-11 3012 Humboldt Eureka 0 Comment
  UCD53520  Agrostis stolonifera Lee Berry 1956-6-20 s.n. Humboldt May Ranch, Bridgeville. Comment
  JEPS75413  Agrostis viridis W. L. Jepson 1932-7-26 16410 Humboldt Bull Creek 106 Comment
  SBBG21792  Ailanthus altissima D. Myrick 1964-7-26 978 Humboldt Hwy 299, ca. 15 mi E of Arcata 762 Comment
Read comments
Feb 4 2016
  RSA183535  Aira caryophyllea G. Bos 1965-5-15 256 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  UC1103297  Aira caryophyllea Joseph P. Tracy 1923-6-24 6359 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1103306  Aira caryophyllea Joseph P. Tracy 1933-6-6 12502 Humboldt Trinidad Northern Coast Region (on bluff facing ocean) 60 Comment
  UCD55782  Aira caryophyllea Linda M. Barker 1976-5-13 1475 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC36299  Alisma triviale J. VanHorn 1973-11-17 3 Humboldt E side of Hwy. 101, 2 mi. S of Arcata. Comment
  HSC98976  Allium acuminatum Cara Witte 2008-7-14 900 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  RSA21655  Allium amplectens Carl B. Wolf 1937-6-14 8810 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  CAS-BOT-BC462971  Allium bolanderi Carl Purdy 1933-6-1 s.n. Humboldt Redwood Creek Comment
  UC146210  Allium campanulatum Joseph P. Tracy 1908-6 2836 Humboldt nw slope of Buck Mountain Northern Coast Ranges, Buck Mountain 914 Comment
  HSC32146  Allium falcifolium D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5600 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  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
  OBI35866  Allium siskiyouense David J. Keil 1983-7-2 17327 Humboldt Horse Mountain Summit SW of Willow Creek. Comment
  NY247883  Allium stenanthum V. K. Chesnut 1888-7-19 s.n. Humboldt Pilot Ridge Comment
  CDA18808  Allium triquetrum P. Haggard 2000-2-22 PDR 018177 Humboldt Glen St., Eureka. 0 Comment
  UC1224691  Allotropa virgata D. E. Anderson 1963-5-18 2447 Humboldt about 1 mi nw of Burnt Ranch School Comment
  HSC3392  Alnus rubra Eugene Andreuccetti 1964-4-2 33 Humboldt 3 mi. N of Tish Tang Ranger Station on Hwy. 96 along Trinity River Comment
  HSC99493  Alnus rubra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 153 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
  RSA2928  Alnus rubra C. B. Wolf 1931-8-28 2365 Humboldt Redwood Highway 4.5 mi. no. Fortuna on road to Eureka. 15 Comment
  UC175283  Alnus rubra Joseph P. Tracy 1912-3-31 3567 Humboldt Blue Lake Northern Coast Ranges, Mad River 30 Comment
  UC212982  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC503100  Alnus viridis subsp. sinuata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9080 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC8887  Alopecurus geniculatus Paul Shields 1955-10-7 Humboldt Essex Pond, near Blue Lake Comment
  SEINET202019  Alopecurus saccatus J. P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  UCD55973  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  CAS-BOT-BC13671  Ambrosia artemisiifolia H. M. Pollard 1947-8-27 s.n. Humboldt Near Orleans Comment
  HSC5663  Ambrosia chamissonis D. E. Anderson 1961-9-2 1771 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  RSA26851  Ambrosia chamissonis I. L. Wiggins 1940-7-10 9486 Humboldt Big Lagoon. Comment
  UC1118432  Ambrosia chamissonis G. T. Nordstrom 1937-7-1 1445 Humboldt 1.6 mi w Orick; Orick Quad. 0 Comment
  UC665538  Ambrosia chamissonis H. E. Parks 1941-9-1 24214 Humboldt sandy beaches at mouth Little River Comment
  UC582624  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13687 Humboldt s end Stone Lagoon 3 Comment
  CAS-BOT-BC142905  Amelanchier Doris K. Kildale; L. B. Kildale 1930-5-11 9559 Humboldt McClellan Hill near Bridgeville 609 Comment
  CAS-BOT-BC142883  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1926-9-5 2629 Humboldt Lasseck's Peaks between Corral Camp & Red Peak 1676 Comment
  CAS-BOT-BC142891  Amelanchier alnifolia var. semiintegrifolia J. P. Tracy 1909-5-2 2953 Humboldt Near Eureka 152 Comment
  CDA1716  Ammophila arenaria T. C. Fuller 1961-9-28 7062 Humboldt 0.2 miles south of Samoa. 0 Comment
  HSC39948  Ammophila arenaria Linda M. Barker 1976-6-22 1624 Humboldt 3 mi. W of Arcata Comment
  HSC3536  Amsinckia douglasiana J. Wendell Howe 1214 Humboldt Comment
Read comments
Feb 11 2018
  HSC3519  Amsinckia intermedia J. W. Johnson 1962-4-21 1286 Humboldt Arcata; William Lanphere Farm about building Comment
  UC545822  Amsinckia menziesii var. menziesii H. E. Parks March, 1933 4282 Humboldt Trinidad Comment
  HSC79547  Anagallis arvensis Kenneth Clark 1980-4-18 572 Humboldt 300 yds. E of Dead Man's Gulch; widespread through Shelter Cove 5 Comment
  CAS-BOT-BC45141  Anaphalis margaritacea Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC37358  Anaphalis margaritacea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 489 Humboldt Along Lost Man Creek. 38 Comment
  HSC37912  Anaphalis margaritacea Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  HSC4623  Anaphalis margaritacea J. W. Johnson 1961-8-17 1018 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC90221  Anaphalis margaritacea L. Watson, J. Watson Aug 1990 2 Humboldt Near Manilla; Mad River Slough and Dunes, 50 yds. N of parking lot, E. of trail Comment
  CAS-BOT-BC45143  Anaphalis margaritacea Bennett; Dunn; Dziekanowski 1976-8-6 478 Humboldt By Hwy 101, N side of Orick 30 Comment
  HSC27042  Anaphalis margaritacea Brad Klipfel 1973-8-25 286 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  HSC37663  Anaphalis margaritacea R. Sutherland 1976-8-18 14 .18876 Humboldt 195 Comment
  POM288758  Anaphalis margaritacea Lyman Benson 1929-7-12 1747 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  SJSU874  Anemone deltoidea A. C. Browne Sr. 1945-5-23 Humboldt Myers Flat Comment
  UC503035  Anemone deltoidea Joseph P. Tracy Jul 16 1930-Jul 19 1930 8964 Humboldt near McKay Camp; North Coast Ranges, South Fork Mtn 1676 Comment
  HSC14969  Anemone oregana var. oregana D. E. Anderson 1965-6-1 3756 Humboldt Horse Mtn., near ski lodge 1433 Comment
  HSC64348  Anemone oregana var. oregana J. P. Smith, J. O. Sawyer 1973-5-12 6694 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC55757  Angelica arguta G. L. Clifton, Terry Griswold 1979-7-26 10295 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC642313  Angelica genuflexa Joseph P. Tracy 1938-9-25 16165 Humboldt near Murphy Meadows (Bald Mountain); Bald Mountain 944 Comment
  HSC70410  Anisocarpus madioides M. A. Baker 1980-6-7 1831 Humboldt Near Ammon Creek 732 Comment
  HSC102080  Antennaria media M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 982 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA167202  Antennaria suffrutescens Joseph P. Tracy 1947-7-9 17864 Humboldt Horse Mountain 1432 Comment
  UC1222874  Antennaria suffrutescens Joseph P. Tracy 1947-7-9 17864 Humboldt Horse Mountain 1432 Comment
  SEINET11853676  Antennaria suffrutescens J. P. Tracy 1947-1 17864 Humboldt Horse Mountain 1433 Comment
  HSC38077  Anthoxanthum occidentale Thomas Nelson, James Nelson 1976-5-30 2630 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC39951  Anthoxanthum occidentale Linda M. Barker 1976-2-22 1312 Humboldt 3 mi. W of Arcata Comment
  SEINET11682981  Anthoxanthum occidentale K. S. Erdman 1970-1 4797 Humboldt Cal-Barrow Road 3 mi E of US 101 at E boundary of Prairie Creek State Park (Redwood N.P.) Comment
  HSC38344  Anthoxanthum odoratum Peter Sorensen 1976-6-2 Humboldt North Spit Comment
  HSC8951  Anthoxanthum odoratum E. W. Styskel 1963-5-19 43 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UC1103319  Anthoxanthum odoratum J. P. Tracy 1899-5-24 318 Humboldt immediate vicinity of Eureka 0 Comment
  UC187269  Anthoxanthum odoratum Joseph P. Tracy 1906-4-29 2424 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UCR46782  Antirrhinum vexillocalyculatum subsp. breweri D. M. Thompson 1983-6-26 354 Humboldt Kneeland Road 9.1 mi south of jct with Mountain View Road. 446 Comment
  UC1198737  Aphanes occidentalis J. P. Tracy 1904-4-3 2005 Humboldt immediate vicinity Eureka 0 Comment
  SEINET12093083  Aquilegia formosa F. H. Utech 1986-1 86 -391 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  HSC18040  Aquilegia formosa var. formosa Greg Bos 1965-5-2 235 Humboldt 5 mi. E of Korbel on Bald Mtn. Rd. 732 Comment
  HSC53858  Arabis glabra Griswold, Butler 1979-7-10 6329 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC57436  Arabis glabra G. L. Clifton, Griswold 1979-7-26 10231 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC58192  Arabis glabra G. L. Clifton, Griswold 1979-8-2 12289 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC3251  Aralia californica D. E. Anderson 1962-9-14 2337 Humboldt Fish Lake area Comment
  RSA568502  Aralia californica Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  BLMAR229  Aralia californica Jennifer Anthony-Wheeler 1996-9-26 229 Humboldt King range, growing along the Kings Peak Rd in creek drainages 670 Comment
  RSA21582  Aralia californica C. B. Wolf 1937-9-8 s.n. Humboldt North Coast Range, Bull Creek- Petrolia Road, 12 mi W of Redwood Highway 457 Comment
  LA41458  Arbutus menziesii Carl Epling; 1933-8-24 sn Humboldt Richardson Grove Comment
  UC585902  Arctostaphylos Joseph P. Tracy 1931-3-1 9283 Humboldt Miranda South Fork of Eel River 121 Comment
  UC585947  Arctostaphylos Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge 1066 Comment
  UC153958  Arctostaphylos X media J. P. Tracy 1901-4-21 1035 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC24092  Arctostaphylos canescens subsp. canescens L. R. Abrams 1918-6-15 7112 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC24095  Arctostaphylos canescens subsp. canescens Doris K. Kildale 1926-8-15 2542 Humboldt Hoopa Mountain 792 Comment
  CAS-BOT-BC25211  Arctostaphylos canescens subsp. canescens J. P. Tracy 1927-5-15 8058 Humboldt Hoopa Mountain. On road W from Hoopa Valley Comment
  SEINET11995492  Arctostaphylos canescens var. sonomensis W. Knight, Knight, I. 1988-1 s.n. Humboldt on embankment between Summit Rd junction & electronic towers at Summit, Horse Mt. Recreational Area Comment
  HSC12231  Arctostaphylos columbiana Gary J. Stebbins 1970-2-2 6 Humboldt Along Hwy. 101, just across Patrick's Point State Park Comment
  HSC7618  Arctostaphylos columbiana J. Pursell 1964-10-11 10114 Humboldt Big Lagoon Park, 1 mi. N of Big Lagoon school, approx. 200 yds. W of the road Comment
  JEPS38618  Arctostaphylos columbiana W. L. Jepson 1902-6-29 1953 Humboldt Redwood Creek Comment
  JEPS38945  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  RSA622698  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27681 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  SBBG58415  Arctostaphylos columbiana H. E. Parks 1931-3-25 917 Humboldt near Patrick's Pt Comment
  UC571196  Arctostaphylos columbiana H. L. Mason 1932-7-21 7104 Humboldt Trinidad Head Comment
  HSC100245  Arctostaphylos densiflora J. P. Smith, J. O. Sawyer 2010-5-2 12794 Humboldt Along Hwy. 96, E of Orleans 244 Comment
  HSC7631  Arctostaphylos glandulosa Doris K. Kildale 1927-1-30 2899 Humboldt Big Lagoon, flat on S side of Lagoon Comment
  RSA632793  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27796 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  HSC70248  Arctostaphylos manzanita M. A. Baker 1980-6-8 1913 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC24326  Arctostaphylos manzanita subsp. manzanita L. R. Abrams 1918-6-15 7111 Humboldt Brannan Mt. near Willow Creek. 1371 Comment
  CAS-BOT-BC24361  Arctostaphylos manzanita subsp. manzanita C. B. Wolf 1927-8-30 1240 Humboldt French's ranch top of Wilder Ridge, between Honeydew and Ettersburg, near Upper Matole. Comment
  CAS-BOT-BC24363  Arctostaphylos manzanita subsp. manzanita R. N. Raynor 1935-3-1 s.n. Humboldt Fort Seward. Comment
  HSC40546  Arctostaphylos nevadensis Thomas W. Nelson, Jane P. Nelson 1976-5-23 2528 Humboldt Canyon of Bear Creek, W of Black Lassic 1555 Comment
  HSC55148  Arctostaphylos nevadensis G. L. Clifton, Griswold 1979-8-1 12071 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  JEPS38982  Arctostaphylos nevadensis Joseph P. Tracy 1935-7-30 14370 Humboldt Salmon Summit 1950 Comment
  UC1602024  Arctostaphylos nevadensis J. W. Congdon 1904-7-23 Humboldt <illegible> Eureka Comment
  SBBG83920  Arctostaphylos nevadensis subsp. knightii R. Gankin, W. R. Hildreth 1967-10-26 1179 Humboldt French Camp Ridge, 21.4 mi E of US 101 on Bald Hills Rd from Orick Comment
  CAS-BOT-BC46626  Arctostaphylos patula Doris Kildale Gillespie 1931-6-7 10594 Humboldt South Fork Mt. Blake Lookout. 1726 Comment
  HSC99103  Arctostaphylos patula Cara Witte 2008-8-6 1019 Humboldt Along National Forest 1, on Kinsey Ridge. North of White Oak Opening. 1246 Comment
  UC32689  Arctostaphylos patula J. Burtt Davy 1899-6-21 5752 Humboldt slopes of Trinity Summit North Coast Ranges 1219 Comment
  CAS-BOT-BC46638  Arctostaphylos patula C. Hart Merriam 1919-8-10 s.n. Humboldt Wetchpek, Klamath Canyon. Comment
  CAS-BOT-BC47207  Arctostaphylos uva-ursi W. R. Dudley 1899-6-1 s.n. Humboldt Eureka penisnula. Comment
  UC1225931  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17498 Humboldt 1 block s Harris (at L St.); Eureka 45 Comment
  UCD52154  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1149 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  RSA2934  Arctostaphylos uva-ursi var. coactilis C. B. Wolf 1931-8-30 2374 Humboldt Samoa. 8 Comment
  CAS-BOT-BC137570  Aristida oligantha Joseph P. Tracy 1933-8-27 13000 Humboldt Robertson's Range. Vicinity of Garberville. 121 Comment
  OBI75994  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley, at Willow Crk 152 Comment
  HSC33756  Armeria maritima subsp. californica A. Montalvo 1975-5-24 268 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing 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
  HSC89499  Armeria maritima subsp. californica M. Roantree 1985-5-24 50 Humboldt N side of Trinidad Head on slope below trail. Comment
  RSA245204  Armeria maritima subsp. californica Jerry Parker 1968-10-14 29 .1 Humboldt Mckinleyville Beach. Comment
  RSA249359  Armeria maritima subsp. californica J. D. Ackerman 1974-5-25 267 Humboldt 0.25 mi S of Lufenholtz County Beach off Scenic Dr between Trinidad and Moonstone Beach. Comment
  HSC44320  Arnica cernua Brad Klipfel 1975-6-17 669 Humboldt Horse Mtn. Comment
  CAS-BOT-BC82425  Arnica discoidea Joseph P. Tracy 1935-7-23 14154 Humboldt Trinity Summit, lower end of Brett Hole 1584 Comment
  HSC58598  Arnica latifolia G. L. Clifton, Griswold 1979-7-25 10755 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC146270  Arrhenatherum elatius var. elatius H. S. Yates 1936-6-23 5851 Humboldt 2 miles east of mouth of Mad River. 30 Comment
  UC1223091  Artemisia douglasiana Joseph P. Tracy 18501 Humboldt River bar 5 mi e Carlotta 30 Comment
  CAS-BOT-BC93859  Artemisia dracunculus Doris K. Kildale 1926-8-8 2473 Humboldt Dyerville Bidge, river bar 45 Comment
  CDA10172  Artemisia pycnocephala T. C. Fuller 1961-9-28 7056 Humboldt 1.5 miles south of Samoa. 0 Comment
  UC1199379  Artemisia pycnocephala Joseph P. Tracy 1918-7-28 5089 Humboldt ocean beach at Humboldt Bay Comment
  POM51270  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 3 Comment
  HSC76047  Aruncus dioicus var. acuminatus Overton, Butler 1979-8-2 12547 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  CAS-BOT-BC453346  Aruncus dioicus var. vulgaris Lester Rowntree 1937-8-6 s.n. Humboldt Maple Creek, east of Eureka Comment
  CAS-BOT-BC400533  Asarum caudatum Volney Rattan 1882-6-1 s.n. Humboldt Mad River Comment
  POM318583  Asarum caudatum Patricia Wilder 1968-8-22 4421 Humboldt Coastal rain forest 7 miles S of Ferndale on Mattole Road, N of Cape Mendocino and Capetown, Mt. Range: Bear River Ridge; Drainage Area: Oil Creek to Pacific. 549 Comment
  HSC63149  Asarum caudatum M. A. Baker 1979-6-28 941 Humboldt Comment
  POM199456  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Near Orick Comment
  SEINET12094123  Asarum caudatum F. H. Utech 1988-1 88 -294 Humboldt 1.5 mi N of Orick on US 101 & 0.5 mi SE on Bald Hills Road 400 Comment
  SEINET8714984 Image available Asarum caudatum Unknown 1936-1 s.n. Humboldt Redwood forest on Yager Road from Carlotta, elevation about 1500 feet, Humboldt County, California. 457 Comment
  UC1197610  Asclepias cordifolia Joseph P. Tracy 1935-7-31 14392 Humboldt ridge connecting Trinity Summit with Salmon Summit; Devil's Backbone 1676 Comment
  JEPS49948  Asclepias fascicularis Mary H. Manning 1900-1 Humboldt near Hupa Comment
  RSA167434  Asclepias speciosa Joseph P. Tracy 1950-7-6 19002 Humboldt On the Albee Road 2 miles south of Burr Valley 1159 Comment
  CDA18989  Aster brickellioides var. glabratus P. Haggard 2000-8-22 PDR 071957 Humboldt Along USFS Rd 1, southeast of Blue Lake. 0 Comment
  RSA20814  Aster chilensis C. B. Wolf 1937-9-9 9312 Humboldt N Coast Range, Wildcat ridge, 6.3 miles S of Ferndale. 305 Comment
  RSA167196  Aster oregonensis Joseph P. Tracy 1950-9-22 19378 Humboldt Roadside, about 3 miles southwest of Orleans Comment
  UC1565647  Astragalus agnicidus Ken Berg and Roxanne Bittman 1987-9-23 Humboldt off Bear Butte Rd. about 2 mi sw of jct with Maple Hills Rd sw Mirando; sw of Mirando Comment
  SFV18601  Astragalus umbraticus T. W. Nelson, J. P. Nelson 1987-6-27 8620 Humboldt Along USFS road to Onion Lake, 8.2 miles from junction with State Route 96. 823 Comment
  HSC3824  Asyneuma prenanthoides D. E. Anderson 1962-7-17 2273 Humboldt Camp Bauer, 1/4 mi. E of Korbel, along N Fork of Mad River Comment
  HSC56967  Asyneuma prenanthoides Overton, Butler 1979-7-23 9491 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  POM281070  Athyrium filix-femina subsp. cyclosorum Lyman Benson 1928-7-12 492 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 76 Comment
Read comments
Oct 12 2010
  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
  HSC38380  Avena barbata Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC9004  Avena barbata R. Spellenberg 1965-6-14 1124 Humboldt Along Barry Rd., 1 mi. from junction with Bridgeville Rd., Kneeland Prairie Comment
  UC526858  Avena barbata Joseph P. Tracy 1930-6-29 8825 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope) 762 Comment
  HSC60017  Azolla filiculoides M. A. Baker 1978-5-20 566 Humboldt W side of the Klamath River along Hwy. 96 Comment
  HSC28931  Baccharis pilularis subsp. consanguinea Diane Johnson 1972-11-14 Humboldt Butler Valley near Maple Creek Comment
  HSC29875  Baccharis pilularis subsp. consanguinea Thomas W. Nelson 1971-11-11 601 Humboldt Foot of Murray Rd., McKinleyville. Comment
  HSC5112  Baccharis pilularis subsp. pilularis Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  UCD129526  Balsamorhiza deltoidea James P. Smith 1973-5-5 6416 Humboldt along Cook and Green Pass road. Comment
  HSC5186  Bellis perennis R. E. Hafenfeld 1965-5-9 41 Humboldt 1/2 mi. N Home Creek near Bold Bluff Beach Rd. Comment
  UC1561835  Bellis perennis Barbara Ertter with Thomas J. Delendick 1987-5-16 6917 Humboldt Hwy 299 roadside 8 mi e Arcata (9 1/2 mi w of Lord Ellis Summit) Comment
  CAS-BOT-BC106352  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt Bear River, ten miles up stream from the mouth. 152 Comment
  CAS-BOT-BC48153  Bensoniella oregona Tom Jimerson s.n. s.n. Humboldt Six Rivers National Forest - Near Snow Camp Lake, Smokehouse Creek. Comment
  HSC41329  Berberis nervosa Brad Klipfel 1974-8-2 509 Humboldt Horse Mtn. Comment
  CAS-BOT-BC412990  Bistorta bistortoides L. B. Kildale 1930-8-10 10531 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC53954  Bistorta bistortoides Griswold, Butler 1979-7-11 7004 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 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
  UC399399  Blechnum spicant Chesnut and Drew 1888-7-8 26 Humboldt near Arcata Comment
  CAS-BOT-BC420275  Boykinia occidentalis Doris K. Kildale 1926-6-6 2117 Humboldt trail to Gold Bluffs Comment
  UC14495  Boykinia occidentalis W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  CAS-BOT-BC420252  Boykinia occidentalis Kenneth Clark 1980-6-14 690 Humboldt Point Delgada quad. north fork Dead Man's Gulch 121 Comment
  SEINET12215472  Boykinia occidentalis H. P. Chandler 1901-1 1501 Humboldt Klamath River - North Coast Ranges 427 Comment
  HSC89516  Brassica rapa M. Roantree 1985-6-11 94 Humboldt E side of Trinidad Head Comment
  CAS-BOT-BC106291  Brickellia californica Doris K. Kildale 1925-9-26 1367 Humboldt Mouth of Mad River in coast. Comment
  HSC45221  Briza maxima M. Alcasas 1978-5-28 110 Humboldt E end of Myrtle Ave., Eureka 8 Comment
  UC526898  Briza maxima Joseph P. Tracy 1930-6-15 8758 Humboldt Alder Point North Coast Ranges 152 Comment
  SBBG10871  Brodiaea elegans subsp. elegans D. E. Breedlove 1961-7-4 650 Humboldt 10.9 mi W of Willow Crk on US Hwy 299 822 Comment
  HSC22043  Brodiaea elegans subsp. elegans D. G. Hauger 1967-7-15 22 Humboldt Shower Pass Rd., Kelly's turn off 915 Comment
  SEINET200767  Brodiaea elegans subsp. elegans Joseph P. Tracy 1936-6-10 14925 Humboldt South Fork of Trinity River mountain slopes west of its mouth 305 Comment
  UC1197747  Brodiaea elegans subsp. elegans Joseph P. Tracy 1924-8-6 6780 Humboldt garden of Joseph P. Tracy, Eureka Comment
  UC1222692  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-7-31 19234 Humboldt near Clear Lake; Grouse Mountain, Buck Prairie 1573 Comment
  RSA249396  Brodiaea stellaris D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5697 Humboldt McKeown Ranch, N of Dinsmore. Comment
  BLMAR554  Brodiaea terrestris Jennifer Wheeler 2004-5-20 554 Humboldt Stornetta Ranch Comment
Read comments
Apr 21 2014
  UCD58229  Bromus carinatus A. H. Murphy 1947-4-1 s.n. Humboldt Table Bluff. Ca. 1.5 miles N of Loleta. Comment
  UC1145158  Bromus carinatus var. carinatus Joseph P. Tracy 1936-8-2 15070 Humboldt French Camp Ridge 1066 Comment
  CDA18212  Bromus carinatus var. maritimus G. D. Barbe, T. C. Fuller 1974-6-17 1840 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  HSC48064  Bromus diandrus Thomas W. Nelson 1978-4-23 3884 Humboldt N of Samoa Comment
  JEPS72930  Bromus hordeaceus Lincoln Constance 1934-5-26 673 Humboldt Bull Creek Region, South Fork Eel River, s end of Dyerville Bridge South Fork Eel River; Bull Creek Region, , Dyerville Bridge 45 Comment
  BLMAR16  Bromus hordeaceus var. racemosus Brad Barr June, 1982 16 Humboldt King range, Johnny jack ridgee-north facing slope Comment
  UC204534  Bromus madritensis subsp. rubens Joseph P. Tracy 1918-5-12 4929 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC161606  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt French Camp Ridge. 1066 Comment
  UC552678  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt Northern Coast Ranges, French Camp Ridge French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  HSC39171  Bromus vulgaris D. E. Anderson, J. P. Smith 1971-6-28 - 1231 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  RSA43838B  Buddleja davidii H. M. Pollard 1947-8-9 s.n. Humboldt Klamath River near Harley Place, Orleans region Comment
  UC175208  Cacaliopsis nardosmia Joseph P. Tracy 1913-6-17 4186 Humboldt Buck Mountain, near the summit Buck Mountain 1676 Comment
  CHSC32805  Cakile maritima Lora L. Anderson 1981-4-25 2 Humboldt Ca. 500 yds e of ocean, 0.5 mi w of hwy 101, 11.5 mi nw of Arcata, beach. 0 Comment
  RSA647567  Cakile maritima var. maritima William Gilbert 1970-6-3 s.n. Humboldt 101 Hwy, 10 miles S [of] Klamath River. Comment
  HSC97775  Calamagrostis foliosa C. Gillevan, C. Sander 2003-8-13 330 Humboldt Cliffs above Randal Creek, Cooksie Creek, and Gitchel Creek, in the King Range Area 9 Comment
  UC70880  Calamagrostis nutkaensis Joseph Burtt Davy and Walter C. Blasdale 1899-8-1 6215 Humboldt Eureka Comment
  UCD57524  Calamagrostis nutkaensis Elizabeth Wilson 1940-7-12 s.n. Humboldt north of Eureka. Comment
  UC144083  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1909-6-13 2995 Humboldt opposite Blue Lake (in Mad River Valley); Northern Coast Ranges, Mad River Valley 30 Comment
  HSC56953  Calocedrus decurrens Overton, Butler 1979-7-23 9457 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  UC1005668  Calocedrus decurrens Frank W. Gould 1939-5-30 827 Humboldt about 25 mi due e of Eureka (top of Horse Mountain); Horse Mountain 365 Comment
  UC195348  Calochortus vestae Joseph P. Tracy 1916-6-19 4713 Humboldt Bosworth's Ranch Northern Coast Ranges, Laribee Creek 457 Comment
  HSC82398  Caltha leptosepala Thomas W. Nelson 1979-7-11 5016 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC273313  Calycadenia fremontii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1196471  Calypso bulbosa J. P. Tracy 1901-4-26 1041 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 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
  UCD138888  Calypso bulbosa var. occidentalis Julie Lortz 1966-5-14 66 -51 Humboldt 26 mile east of Willow Creek. 1219 Comment
  HSC99011  Calyptridium monospermum Cara Witte 2008-7-1 789 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  SEINET200997  Calystegia J. P Tracy 1901-8-7 1274 Humboldt Sand hills of Ocean Beach at Samoa Opp. Eureka Comment
  UC162767  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1911-7-6 3342 Humboldt mountain slopes along road between Three Creeks and Mouth Willow Creek; Northern Coast Ranges, btwn Three Creeks and Willow Creek 762 Comment
  HSC6368  Calystegia soldanella S. J. Hawks 1965-5-14 61 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  UC1586964  Camassia Juha Pykala and D. H. Norris 1987-6-5 1391 Humboldt e of Maple Creek (Snow Mountain Lake); Snow Mountain Lake 1386 Comment
  UC1197671  Camassia quamash J. P. Tracy 1901-6-23 1181 Humboldt immediate vicinity of Eureka 0 Comment
  UC162602  Camassia quamash Joseph P. Tracy 1911-7-7 3388 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CAS-BOT-BC493385  Camassia quamash subsp. linearis Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  HSC25217  Camissonia cheiranthifolia Norman Dennis 1965-6-8 104 Humboldt Samoa Peninsula along the W side of Humboldt Bay Comment
  HSC49511  Camissonia cheiranthifolia R. York 1979-5-18 293 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  HSC16439  Camissonia cheiranthifolia D. E. Anderson 1961-9-9 1795 Humboldt Big Lagoon County Park Comment
  RSA186629  Camissonia contorta Peter H. Raven 1963-5-15 18373 Humboldt Lanphere Ranch just west of Mad River Slough, near Arcata. Comment
  CAS-BOT-BC160245  Camissoniopsis cheiranthifolia subsp. cheiranthifolia D. E. Breedlove 1962-6-7 3036 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  SEINET10462871  Campanula prenanthoides Chandler 1901-6-14 CHANDLER 1476 Humboldt KLAMATH RIVER, ORLEANS TO SOMES BAR 1000 Comment
  SEINET10462961  Campanula prenanthoides Philip A. Munz 1936-8-10 Munz 14338 Humboldt Dry roadside, Lottle Van Duzen River, 15 miles east of Bridgeville Comment
  SEINET10462966  Campanula prenanthoides Tracy 1911-7-4 TRACY 3286 Humboldt Hill slopes at west side of Trinity River; near Willow Creek 244 Comment
  SEINET10463039  Campanula prenanthoides Tracy 1909-8-1 TRACY 3061 Humboldt KNEELAND PRAIRIE, WOODS, GRAVELLY SOIL 762 Comment
  SEINET10873268  Campanula prenanthoides Goddard GODDARD 686 Humboldt Blocksburg. Comment
  HSC35938  Campanula scouleri Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2031 Humboldt French Camp, Bald Hills. Comment
  SEINET10905968  Campanula scouleri Wolf 1934-7-2 WOLF 5854 Humboldt 2 MI FROM BALD MT ON RD TO KORBEL SEMISHADE, COMMON 762 Comment
  HSC26654  Cardamine breweri Thomas W. Nelson 1971-4-27 427 Humboldt Along Jolly Giant Creek, HSU campus Comment
  JEPS53314  Cardamine breweri Joseph P. Tracy 1918-4-28 4891 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC37426  Cardamine californica Doris K. Kildale; L. B. Kildale 1930-5-11 9535 Humboldt Wiregrass Prairie - The Bald Hills. 792 Comment
  HSC37828  Cardamine californica Thomas W. Nelson, Jane P. Nelson 1976-2-21 2254 Humboldt Tish-Tang campground Comment
  HSC73768  Cardamine californica M. A. Baker 1980-6-7 1773 Humboldt Near Brush Mtn. 1128 Comment
  HSC89491  Cardamine californica P. A. Daly 1986-2-28 61 Humboldt Trinidad Head, along trail 61 Comment
  LA204275  Cardamine californica Victor Duran; 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville Comment
  UC162351  Cardamine californica Joseph P. Tracy 1905-4-2 2159 Humboldt near Blue Lake; Northern Coast Ranges, near Blue Lake 30 Comment
  UC162359  Cardamine californica Joseph P. Tracy 1909-4-4 2950 Humboldt region about Humboldt Bay (Buhne's Ranch); Northern Coast Region, Humboldt Bay Region, Buhne's Ranch 0 Comment
  UCD114185  Cardamine californica Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  RSA167405  Cardamine californica var. integrifolia Joseph P. Tracy 1950-5-7 18651 Humboldt On the Redwood House Road, S of Redwood House 1 mile, on Yager Slope. (Head of South Yager Creek). Comment
  HSC64793  Cardamine oligosperma J. P. Smith 1971-10-9 5015 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  RSA183564  Cardamine oligosperma R. I. Bonn 1965-4-23 18 Humboldt 4 miles W of Arcata on Lanphere Rd. Comment
  HSC26336  Cardamine oligosperma Thomas W. Nelson 1971-3-30 361 Humboldt Beside Williams Creek near Ferndale Comment
  HSC90395  Cardamine oligosperma Jean Hanson 1980-4-12 37 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  UC552295  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  CAS-BOT-BC384766  Cardionema ramosissimum D. E. Breedlove 1962-6-7 3048 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UCD150620  Cardionema ramosissimum Linda M. Barker 1976-4-13 1386 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC17794  Carex amplifolia Joseph Prince Tracy 1935-6-23 13986 Humboldt French Camp Ridge. 1066 Comment
  HSC70474  Carex aquatilis var. dives J. P. Tracy 1912-6-16 3702 Humboldt Hookton, around Humboldt Bay 0 Comment
  UC303150  Carex aquatilis var. dives Joseph P. Tracy 1925-7-8 7172 Humboldt Bald Mountain, meadow near High Prairie Northern Coast Ranges 1066 Comment
  POM160305  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt Near the Redwood House, on the road to head of Yager 610 Comment
  UC562629  Carex athrostachya Joseph P. Tracy 1935-7-23 14140 Humboldt Trinity summit, Corral Prairie Comment
  UCD23239  Carex athrostachya Collector Unknown 1971-8-13 s.n. Humboldt Bear River Res. Comment
  CHSC47364  Carex bolanderi L. P. Janeway 1984-5-27 835 Humboldt Ca 1 mi E of Redway on Redwood Cr. 91 Comment
  POM289957  Carex bolanderi Lyman Benson 1928-7-11 s.n. Humboldt Weott Ranger Station, S Fork Eel. 61 Comment
  JEPS26003  Carex cusickii Joseph P. Tracy 1938-7-6 16023 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC34976  Carex densa Joseph Prince Tracy 1936-6-3 14848 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  JEPS80030  Carex densa Joseph P. Tracy 1936-6-17 14953 Humboldt lower foothills of nw slope of Buck Mountain Northern Coast Ranges, Buck Mountain 762 Comment
  UC585641  Carex deweyana subsp. leptopoda J. P. Tracy 1937-6-20 15353 Humboldt Bear River, 10 mi up stream from the mouth 152 Comment
  JEPS109270  Carex diandra D. W. Taylor 2004-6-23 19127 Humboldt Pond on the divide between Frost Creek and Martin Creek, about 1 air mile e of the Alderpoint road. Comment
  HSC96552  Carex echinata subsp. phyllomanica Gordon Leppig 1997-6-19 445 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC203893  Carex echinata subsp. phyllomanica Joseph P. Tracy 1918-7-21 5083 Humboldt around Humboldt Bay; Northern Coast Ranges, Humboldt Hill 91 Comment
  CHSC85994  Carex exsiccata L. P. Janeway 2003-7-30 7941 Humboldt High North Coast Ranges. Small pond, on map but un-named, on the southwest side of Titlow Hill Road 1.1 km south of Cold Spring. 1426 Comment
  HSC40977  Carex fracta J. O. Sawyer 1970-6-24 2217 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  SEINET4292220 Image available Carex fracta Unknown 2003-1 7942 Humboldt On northeast side of Titlow Hill Road, across from a small pond, on the map but un-named, 1.1 km south of Cold Spring. Grouse Mountain quad. Comment
  HSC98938  Carex fracta Cara Witte 2007-6-28 389 Humboldt Friday Ridge Road/ 6N08. 1389 Comment
  UC562715  Carex globosa Joseph P. Tracy 1932-4-23 9832 Humboldt Englewood North Coast Ranges 91 Comment
  UC562716  Carex globosa Joseph P. Tracy 1927-7-4 8242 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC197210  Carex gynodynama Joseph P. Tracy 1912-7-25 3821 Humboldt Northern Coast Ranges, Kneeland Prairie. Comment
  CAS-BOT-BC22319  Carex harfordii Joseph Prince Tracy 1935-6-8 13936 Humboldt Eureka. 60 Comment
  CHSC48077  Carex harfordii L. P. Janeway 1983-5-15 297 Humboldt In riparian bend of Mad River on S side, near Fish Hatchery Rd and across river from Blue Lake. 24 Comment
  UC50821  Carex harfordii J. P. Tracy 1900-7-4 873 Humboldt opposite Eureka (sand hills of Ocean Beach); Samoa Comment
  CHSC90283  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8534 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  HSC74407  Carex hoodii Gail Newton 1980-8-10 2020 Humboldt Near Blake Mtn. 1798 Comment
  UC562335  Carex hoodii Joseph P. Tracy 1932-7-11 10410 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC102203  Carex integra M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1118 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CAS-BOT-BC31261  Carex lenticularis var. impressa Joseph Prince Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  HSC91619  Carex leptopoda E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  HSC48374  Carex leptopoda D. H. Norris May 1970 12458 Humboldt Upper reaches of Freshwater Lagoon, S of Orick Comment
  HSC76778  Carex leptopoda L. P. Janeway 1983-5-15 296 Humboldt Bend of Mad River on S side, near the Fish Hatchery Rd. and across from Blue Lake 24 Comment
  HSC102228  Carex luzulina M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1149 Humboldt Patterson Meadows 1555 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
  HSC63874  Carex microptera M. A. Baker 1979-6-27 921 Humboldt Edge of Hoopa Indian Reservation Comment
  HSC71111  Carex multicaulis M. A. Baker 1980-5-23 1387 Humboldt Near Buck Mtn. 343 Comment
  HSC44548  Carex multicostata Brad Klipfel 1973-7-15 167 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC249513  Carex nudata Joseph P. Tracy 1922-5-29 6069 Humboldt South Yager Creek Valley 762 Comment
  CAS-BOT-BC119385  Carex obnupta W. R. Dudley 1899-6-1 s.n. Humboldt Peninsula opposite Eureka. Comment
  HSC45277  Carex obnupta Brad Klipfel 1973-4-27 315 Humboldt SW side of Big Lagoon Comment
  HSC7066  Carex obnupta Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  JEPS80017  Carex obnupta Joseph P. Tracy 1912-6-16 3702 Humboldt adjacent to salt marsh, Hookton Northern Coast Region, Humboldt Bay, Hookton 0 Comment
  CAS-BOT-BC119264  Carex ovalis Joseph Prince Tracy 1939-7-9 16315 Humboldt Bald Mt. Abundant in ditch 1 mi N of Murphy Meadows. 914 Comment
  SEINET7570348 Image available Carex pachystachya Ray Tallent 1987-8-11 896 Humboldt Six Rivers National Forest, roadside S of Horse Mtn. 1390 Comment
  UC562643  Carex pachystachya Joseph P. Tracy 1932-7-14 10548 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  SEINET10883545  Carex pachystachya Joseph P. Tracy 1935-6-8 Tracy 13938 Humboldt Eureka. Damp place in open ground. Comment
  HSC90642  Carex pansa Gail Newton 1982-5-2 2517 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC119169  Carex pansa Joseph Prince Tracy 1911-6-25 3258 Humboldt Eureka, bayshore. Comment
  CAS-BOT-BC118824  Carex preslii Joseph Prince Tracy 1938-6-9 15878 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC116940  Carex subbracteata Joseph Prince Tracy 1936-6-9 14904 Humboldt Upper Matole. 121 Comment
  CAS-BOT-BC116904  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-23 4808 Humboldt Little Van Duzen River Comment
  CAS-BOT-BC116905  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-23 4842 Humboldt 8 miles from Kneeland on road to Yager. Comment
  CAS-BOT-BC116676  Carex subfusca Joseph Prince Tracy 1934-7-18 13413 Humboldt Horse Mountain. 1371 Comment
  UC562336  Carex tumulicola Harold E. Parks and Joseph P. Tracy 1935-6-16 11270 Humboldt lower nw slopes Buck Mt. 792 Comment
  CAS-BOT-BC115534  Carex unilateralis Joseph Prince Tracy 1946-5-30 17539 Humboldt Wet gully in grassland near Bridgeville. 457 Comment
  UC1103609  Carex vesicaria var. major Joseph P. Tracy 1938-7-7 16033 Humboldt Cold Springs Grouse Mountain 1432 Comment
  RSA273334  Carex viridula B. D. Rogers 1965-10-2 1017 Humboldt Big Lagoon. 0 Comment
  HSC59804  Carpobrotus chilensis Clark L. Miller 1979-5-5 4123 Humboldt Along cliffs off Patricks Point Drive. Comment
  RSA47163  Castilleja affinis Doris K. Kildale 1927-1-17 2985 Humboldt Alton hill. Comment
  JEPS83013  Castilleja affinis subsp. affinis L. R. Heckard 1984-5-14 1655 Humboldt 2 mi s Phillipsville (just n of Freeway 101 on Avenue of the Giants) 83 Comment
  JEPS35840  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 1964-8-2 8986 Humboldt about 2 mi w Orick (at n end of Freshwater Lagoon); Freshwater Lagoon Comment
  UC1196863  Castilleja affinis subsp. litoralis Joseph P. Tracy 1912-4-21 3575 Humboldt n slope Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC1974  Castilleja ambigua subsp. humboldtiensis D. E. Anderson, N. Dennis 1965-6-8 100 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  HSC56028  Castilleja arachnoidea G. L. Clifton, Griswold 1979-7-31 11570 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  JEPS2925  Castilleja arachnoidea W. L. Jepson Jul 16 1902-Jul 23 1902 2054 Humboldt Trinity Summit 2133 Comment
  UC1011938  Castilleja exserta subsp. latifolia F. W. Pennell and J. P. Tracy 1940-7-6 26085 Humboldt w of Lolita (Table Bluff L.H.) 0 Comment
  RSA518654  Castilleja litoralis L. R. Heckard, T. I. Chuang 1971-7-1 2667 Humboldt Slope at south end of Freshwater Lagoon, 2 miles southwest of Orick. Comment
  HSC70512  Castilleja miniata Gail Newton 1980-7-20 1615 Humboldt Near Bell Swamps 1426 Comment
  CAS-BOT-BC244883  Castilleja miniata Thomas W. Nelson; Jane P. Nelson 1979-7-11 5032 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit Comment
  JEPS26532  Castilleja pruinosa Joseph P. Tracy Jun 1901 1485 Humboldt Klamath River; North Coast Ranges 426 Comment
  UC1222459  Castilleja rubicundula subsp. lithospermoides H. E. Parks and Joseph P. Tracy 1930-5-25 8723 Humboldt near Bridgeville 182 Comment
  UC176440  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1913-6-19 4213 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA517384  Castilleja wightii R. C. Bacigalupi, L. R. Heckard 1964-7-27 8962 Humboldt Shaded bend of road just (1/8 mile) above and east of Shelter Cove. On partly shaded N-facing road bank. Comment
  CAS-BOT-BC47997  Ceanothus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1502111  Ceanothus R. Sutherland 1976-10-30 1 .30-76 Humboldt Pt. Delgada Quad. 624 Comment
  HSC41255  Ceanothus arcuatus Brad Klipfel 1974-6-25 445 Humboldt Horse Mtn. Comment
  HSC74353  Ceanothus cuneatus Gail Newton 1980-6-17 208 Humboldt Near Onion Mtn. 1341 Comment
  OBI35865  Ceanothus cuneatus var. cuneatus David J. Keil 1983-7-2 17328 Humboldt Horse Mtn Summit SW of Willow crk Comment
  SBBG4195  Ceanothus foliosus var. foliosus H. and M. Dearing 1932-5-10 987 Humboldt near Blue Lake Comment
  HSC37051  Ceanothus incanus R. Sutherland 1975-5-8 4 .8575 Humboldt Wilder Ridge, near county rd. 8 mi SE of Honeydew, 8 mi W of Mattole River, bridge at Ettersburg Comment
  RSA167407  Ceanothus incanus Joseph P. Tracy 1950-8-4 19249 Humboldt NW slope of the peak, Grasshopper Peak, in Bull Creek State Park at head of Canoe Creek Comment
  UC634809  Ceanothus incanus H. L. Mason 1928-7-14 4901 Humboldt East Fork of Eel River Garberville Comment
  UC668165  Ceanothus incanus Joseph P. Tracy 1935-5-25 13824 Humboldt Larrabee Creek; near Bosworth's 304 Comment
  SEINET3836772 Image available Ceanothus integerrimus Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-7 15325 Humboldt Ten miles South of Squaw Creek Comment
  POM282990  Ceanothus oliganthus var. sorediatus Lyman Benson 1929-7-19 1596 Humboldt Dyerville to Matole River. Comment
  HSC18308  Ceanothus parryi P. J. Zinke 161 Humboldt Divide between Mill Creek and S Fork of Eel River, 2 mi S of Myer's Flat 305 Comment
  UC1193305  Ceanothus parryi P. Zinke 1950-8-26 159 Humboldt Salmon Creek 3 mi w Miranda; Quad. 29C1, Salmon Creek 91 Comment
  CAS-BOT-BC52042  Ceanothus prostratus Doris K. Kildale 1926-4-25 1810 Humboldt Hoopa Mountain 792 Comment
  CAS-BOT-BC52045  Ceanothus prostratus Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC43227  Ceanothus pumilus R. Sutherland 1976-4-25 2 .25476 Humboldt Comment
  HSC74332  Ceanothus pumilus Gail Newton 1980-6-16 149 Humboldt Near Monks Camp. 1097 Comment
  HSC37610  Ceanothus thyrsiflorus R. Sutherland 1975-5-8 15 .8575 Humboldt 5 mi NW of Petrolia where county rd. reaches ocean 30 Comment
  UC668160  Ceanothus thyrsiflorus Joseph P. Tracy 1935-6-2 13924 Humboldt Big Lagoon 60 Comment
  HSC18355  Ceanothus velutinus Francis Winter 1960-4-24 Humboldt 2 mi. SE of Schoolhouse Peak 838 Comment
  UC1198027  Ceanothus velutinus Joseph P. Tracy 1913-7-20 4374 Humboldt Near Three Creeks 1066 Comment
  UC275283  Ceanothus velutinus Joseph P. Tracy 1923-10-28 6590 Humboldt Bald Mountain 762 Comment
  CAS-BOT-BC52409  Ceanothus velutinus var. velutinus C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  CAS-BOT-BC281948  Centaurea benedicta Harold E. Parks; Joseph P. Tracy 1942-7-2 11580 Humboldt Dinsmore's, roadside bordering grain field 762 Comment
  CAS-BOT-BC272099  Centaurea melitensis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  JEPS46935  Centaurium muehlenbergii W. L. Jepson 1902-7-13 2022 Humboldt Willow Creek to Hupa Comment
  JEPS43074  Centunculus minimus H. P. Chandler May 1901 1180 Humboldt Humboldt Bay Comment
  JEPS64317  Cephalanthera austiniae Chesnut and Drew 1888-1 Humboldt Comment
  HSC58133  Cerastium arvense Gilbert Muth 1979-8-1 12138 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  SEINET11942971  Cerastium arvense J. P. Tracy 1950-1 18820 Humboldt Huestis Rock, on NE side of ridge, Mail Ridge, N of Harris 7 mi Comment
  CAS-BOT-BC388164  Cerastium fontanum Henry M. Pollard 1948-7-21 s.n. Humboldt Near Orleans Comment
  HSC39059  Cerastium glomeratum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2645 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC89604  Cerastium glomeratum M. Roantree 1985-4-25 10 Humboldt E side of Trinidad Head. Comment
  HSC98195  Cercis occidentalis Francis Winter 1960-4-24 Humboldt 8 mi. W of Hoopa Indian Reservation, Bair Rd. 686 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
  CAS-BOT-BC85654  Chamaecyparis lawsoniana Doris K. Kildale 1928-10-7 6749 Humboldt Willow Creek Canyon, 7 miles west of Trinity River. Comment
  CAS-BOT-BC85658  Chamaecyparis lawsoniana L. R. Abrams 1918-6-15 7107 Humboldt Unspecified 1371 Comment
  HSC56986  Chamaecyparis lawsoniana Overton, Butler 1979-7-23 9534 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC72829  Chamaecyparis lawsoniana Gail Newton 1980-6-16 195 Humboldt Near Onion Mtn. 1280 Comment
  HSC99569  Chamaesyce serpillifolia subsp. serpillifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 234 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC535755  Chamaesyce serpyllifolia Eleanor Armstrong 1934-8-6 1126 Humboldt Richardson Grove 121 Comment
  HSC23490  Chamerion angustifolium subsp. circumvagum R. A. Vanbianchi 1971-9-10 82 Humboldt Along Fieldbrook Rd., 1/2 mi. from Jct. with old Hwy. 299 Comment
  UC1197019  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1934-7-7 13307 Humboldt Elk River Valley 30 Comment
  UC503061  Cheilanthes gracillima Joseph P. Tracy 1932-7-17 10683 Humboldt head of Devil's Hole; Klamath Mts, Trinity Summit 1828 Comment
  HSC100932  Cheilanthes gracillima Miss Handy Jun 1886 337 Humboldt Rocks near Maple Cr. Comment
  UC1225780  Chenopodium album Joseph P. Tracy 1948-9-5 18203 Humboldt Grizzly Camp Trinity Summit, Little Hors-Linto Creek 1371 Comment
  UC55948  Chenopodium album J. P. Tracy 1903-8-4 1927 Humboldt Immediate vicinity of Eureka 0 Comment
  BLMAR166  Chimaphila menziesii Donald Hazlett 1994-6-7 166 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC73779  Chimaphila menziesii M. A. Baker 1980-6-7 1772 Humboldt Near Brush Mtn. 1128 Comment
  HSC41343  Chimaphila umbellata Brad Klipfel 1974-8-2 503 Humboldt Horse Mtn. Comment
  HSC72793  Chimaphila umbellata M. A. Baker 1980-6-16 1925 Humboldt Near Monks Camp. 1097 Comment
  UC21655  Chimaphila umbellata Bolander 6544 Humboldt Parkers Station, Eureka Trail Comment
  RSA119360  Chimaphila umbellata subsp. occidentalis S. S. Tillett 1956-7-6 616 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  JEPS50839  Chlorogalum pomeridianum var. pomeridianum Wayne Roderick 1966-6-18 Humboldt ca 3 road mi n Bridgeville 762 Comment
  UC1585408  Chrysolepis chrysophylla R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 31 Humboldt W of Hoopa, just E of Pine Ridge Summit Bair Rd.; U.C. Botanical Garden 970 Comment
  UC902027  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1949-8-7 18434 Humboldt e side Hoopa Valley (near the Big Hill lookout station) 914 Comment
  JEPS15745  Cicuta douglasii Joseph P. Tracy 1925-7-5 7179 Humboldt near High Prairie (on Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC154219  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  HSC38627  Circaea alpina subsp. pacifica D. E. Anderson, J. P. Smith 1971-6-18 - 1101 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  UC562518  Circaea alpina subsp. pacifica Joseph P. Tracy 1936-8-7 15088 Humboldt head of Little Hors-Linto Creek (Trinity Summit); Trinity Summit 1371 Comment
  UC1198516  Circaea alpina subsp. pacifica Joseph P. Tracy 1937-6-27 15381 Humboldt w. mouth of S. Fork Trinity R. (Four Mile Creek, on Friday Ridge Rd.); Four Mile Creek 609 Comment
  UC1714534  Circaea alpina subsp. pacifica Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  CAS-BOT-BC284405  Cirsium arvense Doris K. Kildale 1925-7-26 1069 Humboldt Mad River at West End Crossing Comment
  HSC37657  Cirsium arvense R. Sutherland 1976-8-19 6 .19876 Humboldt 259 Comment
  HSC98914  Cirsium arvense Cara Witte 2008-8-16 1025 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1548 Comment
  OBI75077  Cirsium arvense Thomas S. Elias, Barbara A. Elias 1987-8-26 10632 Humboldt Fernbridge, 0.5 mi S of rte 101; Riparian vegetation along WEst bank of Eel River; about .5 mi N of bridge on wide gravel bar Comment
  POM289622  Cirsium arvense Lyman Benson 1929-7-12 1789 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  HSC39168  Cirsium brevistylum D. E. Anderson, J. P. Smith 1971-6-28 1235 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  CAS-BOT-BC284440  Cirsium brevistylum L. R. Abrams 1916-7-18 6082 Humboldt Between Cercata and Trinidad Comment
  SEINET202652  Cirsium douglasii var. canescens H. E. Parks, S. T. Parks 24441 Humboldt South Fork Camp Willow Creek. Comment
  RSA0070608  Cirsium douglasii var. douglasii Thomas W. Nelson 1976-7-9 2987 Humboldt Along 1S07 just west of summit. 1585 Comment
  RSA0070610  Cirsium douglasii var. douglasii H. E. Parks, S. T. Parks 1947-06 24441 Humboldt South Fork Camp, Willow Creek. Comment
  CAS-BOT-BC285529  Cirsium occidentale var. candidissimum L. B. Kildale 1930-7-7 10261 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  CDA1329  Cirsium occidentale var. candidissimum T. R. Haig 1960-6-21 s.n. Humboldt 7 mi. S of Garberville. Comment
  HSC71801  Cirsium occidentale var. candidissimum M. A. Baker 1980-6-26 2379 Humboldt Near Sims Creek 610 Comment
  JEPS59211  Cirsium occidentale var. venustum Lincoln Constance 1934-5-29 724 Humboldt near jctn South Fork of Eel River (Upper look prairie); Bull Creek Region, South Fork of Eel River, Upper Look Prai 365 Comment
  CAS-BOT-BC285772  Cirsium vulgare Carl B. Wolf 1927-8-22 803 Humboldt Big Lagoon Comment
  HSC74679  Cirsium vulgare Gail Newton 1981-8-6 2397 Humboldt Near Humbug Creek 1256 Comment
  UCD130811  Cirsium vulgare Linda M. Barker 1976-8-24 1684 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC98792  Cirsium vulgare Cara Witte 2007-7-26 588 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1283 Comment
  RSA47110  Cirsium vulgare Doris K. Kildale 1925-9-22 1323 Humboldt Fickle Hill above Arcata Comment
  UC144096  Clarkia amoena Joseph P. Tracy Jun 27 1908-Jun 30 1908 2757 Humboldt nw slope Buck Mountain (at bridge across river); Northern Coast Ranges, Little Van Duzen River 609 Comment
  CAS-BOT-BC160946  Clarkia amoena subsp. amoena Roxana S. Ferris 1937-8-21 9385 Humboldt Above terrace at Shelter Cove Comment
  RSA21188  Clarkia amoena subsp. huntiana Carl B. Wolf 1947-8-11 9147 Humboldt North Coast Range, Laribee Valley, 8.5 miles west of Dinsmores 457 Comment
  RSA24287  Clarkia amoena subsp. huntiana Carl B. Wolf 1940-11-10 9783 Humboldt 1 mile inland from Devils Gate (South of Cape Mendocino) on road to Petrolia 152 Comment
  UC1198509  Clarkia concinna subsp. concinna Joseph P. Tracy 1934-7-9 13335 Humboldt ridge 5 mi s Harris 762 Comment
  JEPS43685  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1931-6-28 9597 Humboldt lower foothills of nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  RSA249400  Clarkia purpurea subsp. purpurea D. E. Anderson, Thomas Nelson, S. Dowty 1973-6-17 5701 Humboldt McKeown Ranch north of Dinsmore Comment
  RSA167262  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1950-6-15 18809 Humboldt Mail Ridge, North of Harris, Fort Seward Ranch Comment
  UC1071933  Clarkia purpurea subsp. quadrivulnera H. and M. Lewis 1947-6-13 415 Humboldt 0.1 mi w Trinity Co. line (Highway 36) Comment
  UC1196982  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1913-7-20 4384 Humboldt near Berry's; Northern Coast Ranges, Redwood Creek 304 Comment
  HSC16262  Clarkia purpurea subsp. viminea Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  CAS-BOT-BC172392  Clarkia purpurea subsp. viminea S. K. Harris; J. P. Tracy; C. C. Harris 1942-6-22 1261 Humboldt In a field, 7 miles north and 5 miles east of willow Creek 165 Comment
  HSC54010  Clarkia rhomboidea Griswold, Butler 1979-7-10 7136 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  CAS-BOT-BC439097  Claytonia cordifolia Joseph P. Tracy 1932-7-15 10583 Humboldt Trinity Summit. Ridges East of Corral Prairie 1828 Comment
  HSC74245  Claytonia exigua subsp. exigua M. A. Baker 1980-7-11 2806 Humboldt Near Red Mtn. 1433 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
  UC161026  Claytonia perfoliata subsp. perfoliata Joseph P. Tracy 1906-4-29 2429 Humboldt near Field's Landing (Humboldt Bay Region); Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC17740  Claytonia rubra subsp. rubra H. E. Parks, J. P. Tracy 1930-5-25 876 Humboldt Laribee Valley 762 Comment
  UC1368488  Claytonia rubra subsp. rubra R. K. Gierisch and D. H. Esplin 1969-7-1 3534 Humboldt Grouse Mtn.; Six Rivers Forest/Expt. Area Comment
  HSC55112  Claytonia sibirica G. L. Clifton 1979-7-31 11861 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC59580  Claytonia sibirica Rick Lundquist 1979-4-6 1 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  HSC64324  Claytonia sibirica J. P. Smith 1973-5-26 6824 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET198592  Claytonia sibirica H. E. Parks 01421 Humboldt Spruce Cove Trinidad Comment
  HSC99019  Claytonia sibirica C. Witte 2007-5-18 35 Humboldt Along National Forest 1. Approximately 1 mile north of intersection with 5N09. 1456 Comment
  RSA117678  Claytonia sibirica S. S. Tillett 1956-7-7 628 Humboldt Upper end of Pearch Creek Campground, Six Rivers National Forest Orelans. Comment
  RSA117685  Claytonia sibirica S. S. Tillett 1956-7-3 600 Humboldt Near Foundera Tree Grove, just S of Dyerville. Comment
  SEINET9315908  Claytonia sibirica Unknown 1932-7-14 10536 Humboldt Trinity Summit Comment
  UC1282109  Claytonia sibirica Victor Duran 1933-5-11 3407 Humboldt 6 mi w Bridgeville; Van Duzen River Comment
  HSC93927  Claytonia washingtoniana L. Snyder, B. Redfern, A. de Knijf 1999-4-12 37 Humboldt Mad River Fish Hatchery 54 Comment
  HSC14644  Clianthus puniceus R. A. Magie 1964-5-3 58 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  HSC39721  Clinopodium douglasii D. E. Anderson, J. P. Smith 1971-6-28 - 1255 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UC1197664  Clintonia andrewsiana Miss Edith Tracy 1898-7-1 228 Humboldt above Hydesville (Eureka, Forest Park, on the Van Duzen); Eureka, Forest Park, Van Duzen Comment
  CAS-BOT-BC499961  Clintonia uniflora L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp 1219 Comment
  HSC97486  Collinsia grandiflora C. Witte 2007-5-8 10 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  UC582462  Collinsia grandiflora Joseph P. Tracy 1930-6-21 8781 Humboldt Larrabee Valley; North Coast Ranges; Larrabee Valley 701 Comment
  HSC56411  Collinsia greenei Griswold, Butler 1979-7-11 7045 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  JEPS13757  Collinsia linearis Frank W. Gould 1939-5-30 831 Humboldt Horse Mtn 762 Comment
  UC1222822  Collinsia linearis Joseph P. Tracy 1951-6-16 19475 Humboldt Summit of Siskiyous at crossing of the Takilma-Happy Camp Road near State Line Summit of Siskiyous Comment
  HSC74418  Collomia grandiflora Gail Newton 1980-8-10 2040 Humboldt Near Blake Mtn. 1707 Comment
  UC52545  Collomia grandiflora Mrs. M. H. Manning June, 1902 Humboldt Hupa Comment
  JEPS71031  Collomia grandiflora Milo S. Baker 1923-7-20 37 Humboldt head Yager Creek Comment
  HSC16924  Collomia heterophylla D. E. Anderson 1962-7-17 2274 Humboldt Camp Bauer, 1/4 mi. E of Korbel, along N Fork of Mad River Comment
  UC1197851  Collomia heterophylla Joseph P. Tracy 1911-6-4 3225 Humboldt along river 5 mi from coast; Northern Coast Region, Little River 121 Comment
  HSC45803  Collomia heterophylla J. P. Smith, J. O. Sawyer 1976-5-2 8629 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 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
  UC1197849  Collomia heterophylla Joseph P. Tracy 1917-9-2 4846 Humboldt along streamlet near top Northern Coast Ranges, Grouse Mountain 1524 Comment
  UC978530  Collomia tracyi Joseph P. Tracy 1939-8-5 16373 Humboldt sand bars along river Van Duzen River, Dinsmore's 737 Comment
  HSC90254  Conium maculatum Jean Hanson 1980-5-24 80 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island, 40 ft from SW shore Comment
  HSC6349  Convolvulus arvensis H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  NY643129  Convolvulus arvensis H. N. Moldenke 1932-7-4 7135 Humboldt Comment
  JEPS23516  Coptis laciniata Joseph P. Tracy 1941-4-8 16856 Humboldt Willow Creek Canyon; along Trinity Hwy 762 Comment
  HSC27568  Corallorhiza mertensiana J. D. Ackerman, A. Montalvo 1973-7-4 95 Humboldt Grogan Hole Rd, 18 mi. E of Hoopa Comment
  JEPS93181  Cordylanthus maritimus subsp. palustris Margriet Wetherwax and Kevin Downing 1993-8-9 2462 Humboldt N of Eureka, along N side of Eureka Slough; Jacobs St. turn-off of 101N just beyond bridge over slough; between two Peterbilt warehouses; population extends sporadically to Johns Used and Crashed Cars 5 Comment
  POM21204  Cordylanthus pilosus subsp. pilosus L. R. Abrams 1916-7-10 5964 Humboldt Between Harris and Alder Pt. Comment
  HSC100233  Cordyline australis J. P. Smith 2010-5-29 12890 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  CAS-BOT-BC101149  Corethrogyne filaginifolia L. R. Abrams 1916-7-18 6096 Humboldt Arcata to Trinidad Comment
  HSC38284  Corethrogyne filaginifolia J. P. Smith 1976-10-3 8993 Humboldt Samoa Peninsula, just W of the drag strip Comment
  UC1601151  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UCD130872  Corethrogyne filaginifolia Joseph P. Tracy 1950-6-15 18764 Humboldt 1 mile west of town, near Petrolia, between town and Ocean. Comment
  RSA46901  Cornus californica Doris K. Kildale 1925-6-27 769 Humboldt Yager - near mouth. Comment
  UC630635  Cornus canadensis Joseph P. Tracy 1939-7-9 16321 Humboldt Bald Mountain. at Lake Prairie Bald Mountain 1066 Comment
  CAS-BOT-BC209863  Cornus nuttallii John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC212130  Cornus sericea H. E. McMinn 1922-8-5 348 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC212183  Cornus sericea W. R. Dudley 1899-6-21 s.n. Humboldt Englewood Brook, Eel River Comment
  HSC38434  Cornus sericea subsp. occidentalis J. P. Smith 1976-10-30 8999 Humboldt Mad River, E of Essex Ln. exit. Comment
  HSC99428  Cornus sericea subsp. sericea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 77 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC6422  Cornus sessilis J. P. Tracy 1941-3-26 16846 Humboldt Four-Mile Creek near mouth of S Fork Trinity River. 610 Comment
  RSA394654  Cornus sessilis Jane Turner, Francis M. Ball, B. L. Turner 1962-7-10 1144 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  RSA46468  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat. Comment
  UC1167522  Cornus sessilis J. A. Delapp 1959-9-2 51 Humboldt 6 3/4 mi. n.-n.e. Schoolhouse Peak (near Big Prairie, V-Plot #81, <3N-95>); Quad. 11C-1 685 Comment
  UC154069  Cornus sessilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5634 Humboldt Hoopa Mt. North Coast Ranges, Hoopa Mt. Comment
  PASA1934  Cornus sessilis Frank W. Peirson 1932-7-7 Humboldt Wild Creek Comment
  RSA113712  Cornus stolonifera Joseph P. Tracy 1948-9-2 18201 Humboldt Trinity Summitt. In fir woods, head of Little Hors-Linto Creek. 1372 Comment
  UC1197931  Corylus californica Mary Harriet Tracy 1946-5-30 Humboldt 5 mi E of Carlotta (Riverside Park) 30 Comment
  CAS-BOT-BC180302  Corylus cornuta subsp. californica Joseph P. Tracy 1931-8-16 9611 Humboldt near Briceland 152 Comment
  HSC3477  Corylus cornuta subsp. californica Curt M. Johnson 1966-3-11 117 Humboldt Along Bull Creek Rd. 6 mi. W of Weott 140 Comment
  HSC76276  Corylus cornuta subsp. californica Teresa Prendusi 1981-7-24 468 Humboldt Near Whiteys Peak 1585 Comment
  SEINET200866  Cotula australis J. P. Tracy 1900-5-26 804 Humboldt Immediate Vicinity of Eureka, Comment
  UCD130891  Cotula coronopifolia Linda M. Barker 1976-7-5 1638 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC291341  Cotula coronopifolia C. L. Hitchcock; J. S. Martin 1939-7-14 5434 Humboldt Above pier at Shelter Cove Comment
  UC1080303  Crataegus gaylussacia E. K. Balls 1957-5-25 22602 Humboldt State Hwy 36, Van Duzen River, W of Trinity-Humboldt Co. line 731 Comment
  CAS-BOT-BC291480  Crepis capillaris Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC291492  Crepis capillaris Alice Eastwood 1923-8-16 12327 Humboldt Carlotta Comment
  CAS-BOT-BC291479  Crepis capillaris Paul F. Covel 1937-7-12 1103 Humboldt Bolling Redwood Grove Comment
  POM126511  Crocidium multicaule Joseph P. Tracy 1922-5-29 6075 Humboldt South Yager Creek Valley. 762 Comment
  UC249531  Crocidium multicaule Joseph P. Tracy 1922-5-29 6075 Humboldt Sout Yager Creek Valley 762 Comment
  HSC63483  Croton setiger M. A. Baker 1979-6-6 376 Humboldt Along Hwy. 96 Comment
  UC1239666  Cryptantha affinis Harold E. Parks and Joseph P. Tracy 1934-6-27 11059 Humboldt Grouse Mt. 1432 Comment
  UC1239656  Cryptantha flaccida Joseph P. Tracy 1937-7-19 15455 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  BLMAR607  Cryptantha leiocarpa Jennifer Wheeler 2011-4-1 607 Humboldt King range, growing throughout the Mattole Beach duns 0 Comment
  HSC58088  Cuscuta californica G. L. Clifton, Griswold 1979-8-1 11997 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CDA39929  Cuscuta campestris E. C. Whitney 1962-9-17 s.n. Humboldt W.E. Bartlett property, Shively. 0 Comment
  UC562484  Cuscuta salina var. major Joseph P. Tracy 1933-8-22 12990 Humboldt Mouth of Eel River 3 Comment
  HSC3641  Cynoglossum grande A. H. Teshima 1963-3-10 5 Humboldt Moonstone Beach area Comment
  RSA67017  Cynoglossum grande E. K. Balls 1951-5-9 16516 Humboldt ca. 5 miles S of Richardson s Grove, Highway 101. Comment
  HSC53799  Cynosurus echinatus Griswold, Butler 1979-7-10 6219 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  JEPS26624  Cynosurus echinatus Ira L. Wiggins 1957-6-21 14142 Humboldt 1 mi. s. Garberville (e. side of rd.) Comment
  UC1103641  Cyperus strigosus Joseph P. Tracy 1931-9-7 9655 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC55124  Cystopteris fragilis G. L. Clifton, Griswold 1979-8-1 11924 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  UC42487  Cystopteris fragilis C. C. Marshall 1888-1 Humboldt Comment
  POM66966  Cytisus monspessulanus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA1438  Cytisus monspessulanus E. R. Johnson 1929-08 1434 Humboldt Eel River. 91 Comment
  SEINET2153799  Cytisus scoparius K. T. Harper 2002-1 2002 -3 Humboldt Redwood Park, near Orick. Comment
  HSC34813  Dactylis glomerata Dryden 1975-4-20 122 Humboldt Arcata 0 Comment
  RSA54136  Dactylis glomerata Henry M. Pollard 1946-8-25 s.n Humboldt Wilson Creek. Orleans region Comment
  CAS-BOT-BC189734  Danthonia californica Joseph P. Tracy 1930-7-10 8860 Humboldt Northern Coast Ranges. Brannan Mountain. 1219 Comment
  UCD60512  Danthonia californica var. americana A. H. Murphy 1947-6-9 s.n. Humboldt Parrott's Ranch, Table Bluff, ca. 1.5 miles north of Loleta. Comment
  HSC20253  Darmera peltata D. E. Anderson 1962-5-1 2199 Humboldt 1 mi. W of Hoopa Comment
  JEPS49591  Darmera peltata Joseph P. Tracy 1918-5-27 4934 Humboldt foot of Grouse Mt. (Redwood Creek); Northern Coast Ranges 457 Comment
  UC1197352  Daucus pusillus Joseph P. Tracy 1901-8-2 1248 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC249612  Daucus pusillus Joseph P. Tracy 1921-7-10 5845 Humboldt near ocean Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  HSC24780  Delairea odorata Barbara Kelly 1971-11-15 230 Humboldt North Bank Rd. next to Hwy. 101, McKinleyville Comment
  SEINET11836589  Delairea odorata J. P. Tracy 1942-1 17054 Humboldt near Ferndale along Russ Creek Comment
  HSC97582  Delphinium decorum subsp. tracyi Cara Witte 2007-5-23 105 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  SJSU3556  Delphinium decorum subsp. tracyi R. D. Spadoni 1965-5-1 45 Humboldt c. 10 mi SE of Bridgeville on State Rte 36 533 Comment
  UC249648  Delphinium decorum subsp. tracyi Joseph P. Tracy 1922-6-5 6082 Humboldt slopes at head of creek Northern Coast Ranges, South Yager Creek 762 Comment
  UC161541  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1911-7-7 3376 Humboldt meadows on mountainside 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC74627  Delphinium nudicaule M. A. Baker 1980-5-17 1251 Humboldt Near Le Perron Peak 1066 Comment
  HSC98842  Delphinium nudicaule Cara Witte 2007-5-23 107 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  CAS-BOT-BC9957  Delphinium nudicaule Duart V. Brown 1947-4-2 28 Humboldt Near Sweed Creek, Trinity River Comment
  HSC48947  Delphinium nudicaule M. A. Baker 1979-5-15 733 Humboldt Along old bed of Bluff Creek Comment
  HSC48769  Delphinium nuttallianum Brad Klipfel 1973-6-10 49 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74385  Delphinium nuttallianum M. A. Baker 1980-6-28 2471 Humboldt Near Mad River Buttes 1445 Comment
  SEINET12099650  Delphinium trolliifolium J. P. Tracy 1951-1 19559 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  CAS-BOT-BC16944  Delphinium variegatum subsp. variegatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC35449  Deschampsia cespitosa J. D. Ackerman 1975-8-2 607 Humboldt Intersection of Indianola Cutoff and US Hwy 101. 3 Comment
  UCSC000008  Deschampsia cespitosa Randall Morgan 2005-6-24 s.n. Humboldt 1 mi W of Bayside - Eureka Comment
  UC595124  Deschampsia cespitosa subsp. beringensis David D. Keck 1938-8-5 4773 Humboldt Big Lagoon Comment
  UCR32148  Deschampsia cespitosa subsp. beringensis David J. Keil 1983-7-2 17301 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard [600 G St.] Comment
  CAS-BOT-BC194292  Deschampsia cespitosa subsp. cespitosa Carl B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  HSC27104  Deschampsia cespitosa subsp. holciformis L. M. Malloy 1965-5-19 38 Humboldt Arcata, southside of Samoa Rd., opposite of KATA radio station, adjacent to the railroad tracks, bank of a drainage ditch. Comment
  RSA22686  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge Comment
  CAS-BOT-BC201771  Deschampsia elongata H. N. Bolander 1862-1-1 s.n. Humboldt Unspecified Comment
  HSC58402  Deschampsia elongata Griswold, Butler 1979-7-11 7035 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  SBBG59443  Deschampsia elongata H. E. Parks -May-1931 3646 a Humboldt Big Lagoon Comment
  UC1103217  Deschampsia elongata J. P. Tracy 1901-4-26 1043 Humboldt 6 mi. s. Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  SEINET181183 Image available Deschampsia elongata Bassett Maguire, R Maguire; CB Maguire 1934-6-8 15070 Humboldt Bolling Grove State Park ; Under redwoods Comment
  UC146101  Dicentra formosa J. P. Tracy 1903-8-4 1928 Humboldt immediate vicinity Eureka 0 Comment
  UCD114222  Dicentra formosa James P. Smith 1973-5-5 6480 Humboldt Along Cook and Green Pass Road. Comment
  RSA433572  Dicentra formosa subsp. formosa Christopher Davidson 1973-5-29 2200 Humboldt Ca. 2 mi S of Carlotta on St. Hwy 36 61 Comment
  UC709439  Dichelostemma X venustum Joseph P. Tracy 1941-5-4 16867 Humboldt Miranda, along the South Fork of Eel River South Fork of Eel River 121 Comment
  UC666885  Dichelostemma capitatum Joseph P. Tracy 1927-5-8 7966 Humboldt Phillipsville 121 Comment
  HSC3031  Dichelostemma ida-maia D. E. Anderson 1965-5-15 3710 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek, above Trinity River Comment
  UC1222690  Dichelostemma ida-maia Joseph P. Tracy with A. H. Murphy 1951-6-26 19568 Humboldt vicinity Twin Lakes and Snow Camp; Twin Lakes Comment
  CAS-BOT-BC501021  Dichelostemma ida-maia Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  HSC3027  Dichelostemma ida-maia H. E. Parks, S. T. Parks Jun 1928 259 Humboldt Gills 305 Comment
  SEINET12050367  Dichelostemma ida-maia F. H. Utech 1988-1 88 -277 Humboldt 1.5 mi E of Bridgeville on CA 36, Mile Marker 23.0 150 Comment
  SEINET12053111  Dichelostemma ida-maia L. K. Henry 1971-1 s.n. Humboldt along Rt.36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  UC1198179  Dichelostemma ida-maia Frank A. Graham 1935-7-27 Humboldt lower end Crogan Hole; Trinity Summit 1463 Comment
  UC666912  Dichelostemma ida-maia Joseph P. Tracy 1937-7-19 15450 Humboldt nw slope Buck Mountain 914 Comment
  SD90195  Digitalis purpurea Benjamin C. Stone 1952-6-25 137 Humboldt 15 miles south of Klamath. 14 Comment
  UC1103230  Digitaria sanguinalis Joseph P. Tracy 1948-10-20 18254 Humboldt Eureka 30 Comment
  UC1145034  Digitaria sanguinalis Joseph P. Tracy 1942-9-13 17316 Humboldt Eureka 30 Comment
  CAS-BOT-BC150350  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna Comment
  UC146140  Disporum smithii Joseph P. Tracy 1908-6 2867 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 304 Comment
  UC30078  Disporum smithii Mrs. M. H. Manning 1901-4-1 12 Humboldt near Hupa Comment
  IRVC2496  Disporum smithii R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  RSA46820  Disporum smithii Doris K. Kildale 1926-3-26 1636 Humboldt Old Kneeland road. Comment
  UCSC000139  Disporum smithii R. Stahelin 1933-5-17 s.n. Humboldt Arcata City Park - Eureka Comment
  UC38068  Distichlis spicata Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6211 Humboldt near Ferndale Comment
  UC573991  Distichlis spicata H. S. Yates 1936-6-23 5859 Humboldt 1 mile W. of Bayside Comment
  POM256487  Downingia elegans var. corymbosa Joseph P. Tracy 1930-6-15 8739 Humboldt Larrabee Creek, near Bosworth's; North Coast Ranges. 457 Comment
  HSC58200  Draperia systyla Walter Overton 1979-8-1 12303 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  UC1198682  Drymocallis lactea var. austiniae Joseph P. Tracy 1913-6-17 4192 Humboldt near summit (Buck Mountain); Northern Coast Ranges, Buck Mountain 1524 Comment
  HSC57995  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-7-31 11758 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC42173  Dryopteris arguta C. C. Marshall 46 Humboldt Hoopa Valley Comment
  JEPS337  Dryopteris arguta Wm. K. D. Reynolds August, 1933 Humboldt Riceland Comment
  JEPS35138  Dryopteris expansa Milo S. Baker 1923-7-16 20 Humboldt 4 mi se Eureka Comment
  HSC44325  Eleocharis acicularis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3592 Humboldt Margin of drying pond above Alder Springs 1585 Comment
  JEPS19332  Eleocharis acicularis Joseph P. Tracy 1937-8-12 15626 Humboldt Bald Mountain, at Lake Prairie 1066 Comment
  RSA246898  Eleocharis acicularis var. gracilescens Robert F. Thorne, Percy C. Everett 1965-8-9 35326 Humboldt Clam Beach County Park: along highway. 3 Comment
  JEPS19330  Eleocharis bella Joseph P. Tracy 1935-7-27 14299 Humboldt McKay Prairie Trinity Summit 1584 Comment
  UC1103659  Eleocharis bella Joseph P. Tracy 1931-9-7 9651 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC113110  Eleocharis obtusa LeRoy Abrams 1918-6-16 7158 Humboldt Willow creek. Comment
  UC666880  Eleocharis pachycarpa H. E. Parks and Joseph P. Tracy 1931-6-7 9569 Humboldt Trinidad 60 Comment
  HSC73057  Elymus X hansenii M. A. Baker 1980-7-23 3163 Humboldt Near Orleans Mtn. 1859 Comment
  OBI37800  Elymus glaucus David J. Keil 1983-7-1 17280 Humboldt 2.5 mi NE of Honeydew along Bull Crk Flats rd Comment
  UC526799  Elymus glaucus Joseph P. Tracy 1932-7-12 10448 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UCD61884  Elymus glaucus P. B. Kennedy 1923-8-2 Humboldt Near top of grade - Bluff Creek to Arcata. Comment
  UC1146679  Elymus glaucus Freed W. Hoffman 1946-5-19 1729 Humboldt Mattole River North Coast Ranges Comment
  UC526791  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8215 Humboldt Stone Lagoon Northern Coast Region (bluffs facing ocean) 6 Comment
  HSC10938  Elymus mollis subsp. mollis J. W. Johnson 1962-4-29 1297 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  CAS-BOT-BC234111  Elymus multisetus Doris K. Kildale 1928-6-24 5273 Humboldt Horse Mountain 914 Comment
  UC526849  Elymus multisetus H. E. Parks and Joseph P. Tracy 1934-7-6 11141 Humboldt Iaqua Northern Coast Ranges 609 Comment
  JEPS75063  Empetrum hermaphroditum Gary S. Lester 1975-4-6 604 Humboldt n Trinidad (Megwil Point); Trinidad State Beach, Elk Head 15 Comment
  JEPS31511  Epilobium campestre Joseph P. Tracy 1938-7-5 16004 Humboldt open flat by old Strong's District School House (in dried pond bed, 5 mi e of town); Carlotta 45 Comment
  UCR142719  Epilobium canum subsp. latifolium Thomas W. Nelson, Jane P. Nelson 1977-8-6 3722 Humboldt Between Blanket Creek and Bear Creek just below Blanket Rock 1494 Comment
  HSC49628  Epilobium ciliatum subsp. ciliatum Thomas W. Nelson, Jane P. Nelson 1979-7-3 4943 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC54566  Epilobium ciliatum subsp. ciliatum Overton, Butler 1979-7-24 9586 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC1197006  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9099 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC562507  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1933-8-30 13028 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC16349  Epilobium ciliatum subsp. watsonii W. F. Nickel 1965-5-8 Humboldt On HSU campus behind the Biological Science Building Comment
  UC203562  Epilobium densiflorum Joseph P. Tracy 1918-7-5 5020 Humboldt White Thorn Valley Northern Coast Ranges (in ditch) 304 Comment
  HSC98733  Epilobium densiflorum Cara Witte 2007-8-9 633 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1584 Comment
  UC1198488  Epilobium foliosum Joseph P. Tracy 1940-5-18 16565 Humboldt on an exposed rock outcrop Prairie Creek 91 Comment
  UC161072  Epilobium foliosum Joseph P. Tracy 1911-7-4 3301 Humboldt near creek mouth Northern Coast Ranges, Willow Creek (tributary of Trinity River) 152 Comment
  RSA167260  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1950-8-7 19272 Humboldt On trail between Box Camp and Croghan [Groghan] Hole, 2 miles east of Box Camp. Trinity Summit Comment
  UC1197008  Epilobium hallianum Joseph P. Tracy 1935-7-27 14300 Humboldt McKay Prairie Trinity Summit 1584 Comment
  HSC49644  Epilobium hallianum J. P. Smith, Steve Selva 1970-6-30 4147 Humboldt Comment
  HSC64161  Epilobium minutum J. O. Sawyer, K. A. Sawyer 1979-6-24 3402 Humboldt Slopes alongside Aikens Creek. 366 Comment
  HSC99486  Equisetum arvense K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 145 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
  UC667937  Equisetum arvense Joseph P. Tracy 1937-7-2 15391 Humboldt ne of Hawkins Bar Happy Camp Mt.; Trinity Summit Range 1280 Comment
  JEPS60127  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River near Grizzly Creek Grizzly Creek; Van Duzen River 91 Comment
  HSC61634  Equisetum laevigatum Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  HSC70639  Equisetum telmateia subsp. braunii R. York 1980-5-18 594 Humboldt Near Black Mtn 792 Comment
  HSC36259  Equisetum telmateia subsp. braunii John Rehling 1974-8-19 19 Humboldt Along Cranell Rd. next to pasture, Trinidad Comment
  SEINET3866711  Equisetum telmateia subsp. braunii R. L. Jarvis 1962-4-7 16 Humboldt Sea level. 2 miles south of Arcata on highway 101.; 0 Comment
  UC1187363  Equisetum telmateia subsp. braunii P. C. Hutchison 1961-3-3 885 Humboldt 1/2 ,i s Benbow (Hwy. 101, S. Fork Eel River) Comment
  HSC9769  Eragrostis hypnoides J. P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley, Willow Creek Comment
  RSA44365  Eragrostis mexicana subsp. virescens Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  HSC5491  Erechtites glomeratus H. E. Parks, S. T. Parks Jul 1937 24033 Humboldt Trinidad; Spruce Cove 64 Comment
  SD40101  Erechtites prenanthoides Edith A. Purer 1932-7-27 4135 Humboldt Sand dunes. Comment
  UC1198998  Eremocarpus setiger Joseph P. Tracy 1908-6 2851 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC81904  Eremogone congesta Thomas W. Nelson 1979-7-11 4994 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC57889  Eremogone congesta var. suffrutescens Overton, Butler 1979-7-31 11446 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CDA5471  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  HSC44089  Ericameria nauseosa var. speciosa Thomas W. Nelson, Jane P. Nelson 1977-9-3 3717 Humboldt N of Bear Creek 1494 Comment
  RSA168810  Erigeron foliosus var. confinis Joseph P. Tracy 1947-7-5 17785 Humboldt Trinity Summit; Ridge top one mile W of Mud Springs. 1159 Comment
  POM187846  Erigeron foliosus var. mendocinus Marcus E. Jones 1931-7-16 29149 Humboldt Junction, East of Arcata. Comment
  CDA4960  Erigeron glaucus G. D. Barbe, T. C. Fuller 1974-6-17 1834 Humboldt Lower Pacific Drive at Sail Court, west of the golf course, south of the sewer plant, Shelter Cove. 0 Comment
  HSC90479  Erigeron glaucus Jean Hanson 1980-8-28 121 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  HSC91917  Erigeron glaucus E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, Palmer's Point Trail to beach Comment
  RSA259565  Erigeron philadelphicus D. E. Anderson, J. P. Smith 1971-6-28 J- 1221 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  UCD131462  Erigeron philadelphicus var. philadelphicus K. Esau 1935-5-22 s.n. Humboldt Fort Seward. Comment
  SDSU3945  Erigeron philadelphicus var. philadelphicus D. F. Howe 1963-7-8 3621 Humboldt 8.2 miles west of Bridgeville on Cal. 36, Van Duzen River. 91 Comment
  UC581734  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1936-6-17 1463 Humboldt on nw slope Buck Mountain; Northern Coast Ranges, , Burr Valley 1066 Comment
  JEPS22258  Erigeron robustior Milo S. Baker 1923-7-29 134 Humboldt Yager Creek; mt. on s side of camp, region of type locality 792 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
  UC581718 Image available Erigeron robustior J. P. Tracy 1932-6-26 10252 Humboldt Valley of South Yager Creek; ; valley of South Yager Creek, Humboldt Co. 762 Comment
  HSC74751  Eriogonum compositum Gail Newton 1981-7-10 2220 Humboldt Near Board Camp Butte 1494 Comment
  HSC97578  Eriogonum compositum var. compositum Cara Witte 2007-5-29 140 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  CAS-BOT-BC259161  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  CDA22610  Eriogonum latifolium T. C. Fuller 1961-9-28 7050 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  CHSC69503  Eriogonum latifolium Vernon Oswald; Lowell Ahart 1997-9-4 8853 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. 6 Comment
  POM188142  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton. Comment
  SBBG53807  Eriogonum latifolium C. M. Hoak 1931-7-14 Humboldt above Eureka Comment
  UCD100327  Eriogonum latifolium Linda M. Barker 1976-6-22 1615 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCR122372  Eriogonum latifolium George K. Helmkamp, E. A. Helmkamp 2001-7-8 7016 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  RSA393623  Eriogonum latifolium Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  UC1198103  Eriogonum luteolum var. luteolum J. P. Tracy 1900-9-10 957 Humboldt 6 mi above Hydesville (Van Duzen River bar); Van Duzen River 60 Comment
  UC198571  Eriogonum nudum var. nudum Joseph P. Tracy 1916-9-6 4761 Humboldt head of Canoe Creek Northern Coast Ranges, , Canoe Creek (Grasshopper Ridge) 609 Comment
  HSC25980  Eriogonum nudum var. oblongifolium Thomas W. Nelson 1970-9-3 231 Humboldt Beside Mad River Comment
  SEINET3404935 Image available Eriogonum nudum var. pubiflorum Joseph P. Tracy 1916-6-20 4729 Humboldt Dobbyn Creek Comment
  HSC75959  Eriogonum umbellatum Overton, Butler 1979-7-24 9739 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC1225801  Eriogonum umbellatum var. argus Joseph P. Tracy 1947-7-5 17781 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  SEINET4856204  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 miles west of Hyampom. 1296 Comment
  UC1980592 Image available Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U. S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. Comment
Read comments
Jun 19 2014
  UC672897  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1933-7-25 12881 Humboldt Grouse Mountain 1524 Comment
  HSC49961  Eriophyllum lanatum Maralyn O'Meara 1974-7-11 546 Humboldt Kneeland, Barry Ridge Comment
  JEPS34644  Eriophyllum lanatum var. achilleoides Lincoln Constance 1934-6-15 888 Humboldt summit of Grasshopper Peak; Bull Creek Region, South Fork Eel River, Grasshopper Peak 975 Comment
  UC1223133  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1950-5-24 18696 Humboldt Cummings Post Office Comment
  HSC79441  Eriophyllum lanatum var. arachnoideum Kenneth Clark 1980-6-14 671 Humboldt Western slope of Dead Man's Gulch 145 Comment
  HSC44134  Eriophyllum lanatum var. grandiflorum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3578 Humboldt Along W side of road N of Alder Springs, head of N Fork of Conley Creek 1280 Comment
  HSC78919  Eriophyllum lanatum var. lanceolatum T. Jimerson, D. K. Imper 1982-5-17 1438 Humboldt Near Ashfield Ridge. 822 Comment
  RSA12526  Eriophyllum lanatum var. lanceolatum C. B. Wolf 1934-7-3 5910 Humboldt 20 miles from Orick on Weitchpec Road 152 Comment
  CAS-BOT-BC301922  Eriophyllum staechadifolium Joseph P. Tracy 1918-7-1 4971 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 30 Comment
  HSC8498  Erodium cicutarium Elrid H. Spinas 1948-5-15 14 Humboldt Horse Mtn. Comment
  HSC90471  Erodium cicutarium Jean Hanson 1980-4-12 34 Humboldt Eureka, Indian Island in Humboldt Bay. W end of island. Comment
  HSC100485  Erodium moschatum Carl C. Marshall May 1886 197 Humboldt Yard's etc. Comment
  UC10526  Erysimum capitatum J. Burtt Davy 1899-6-23 5856 Humboldt Trinity Summit North Coast Ranges Comment
  UC1222654  Erysimum capitatum Joseph P. Tracy 1950-6-15 18791 Humboldt 7 mi n Harris (along old Overland Rd); Mail Ridge Comment
  HSC85821  Erysimum capitatum David Munger, Tallchief Comet, Jeff Dunk 1987-5-11 101 Humboldt Titlow Hill Rd., 1 mi. from Hwy. 299 intersection Comment
  HSC67181  Erysimum capitatum var. capitatum Thomas W. Nelson, James Nelson 1980-6-10 5433 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC76222  Erysimum capitatum var. capitatum Walter Overton, Marvin Butler 1979-7-24 9764 Humboldt Near Black Rock, close to the town of Willow Creek 1554 Comment
  HSC6787  Erysimum menziesii J. R. Woodside 1963-3-10 40 Humboldt 1.25 mi. N of Fairhaven. Comment
  CHSC19730  Erythranthe dentata Gary J. Stebbins 1970-5-17 81 Humboldt Along Jolly Giant Creek up from H. S. C. dorms 1.9 miles from the parking lot. 70 Comment
  CAS-BOT-BC383042  Erythranthe grandis David B. Lowry 2005-5-14 BSR Humboldt Along Blue Slide Road, just north of the intersection with Bluff road 17 Comment
  HSC71223  Erythronium californicum Thomas W. Nelson 1977-4-20 3331 Humboldt Along USFS Road 1N15 at summit 915 Comment
  UC1134592  Erythronium californicum R. Stahelin 1933-5-17 Humboldt Kneeland Prairie China Flat Quadrangle Comment
  HSC98625  Erythronium californicum Cara Witte 2007-5-26 659 Humboldt National Forest 1. 1/2 mile south of intersection with Forest Service Roads 6N38 and 6N36. 1458 Comment
  UC1197643  Erythronium revolutum Ethel Tracy 1907-5-4 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC169914  Eschscholzia californica Harley P. Chandler June, 1901 1538 Humboldt Klamath River North Coast Ranges 457 Comment
  UC35061  Eschscholzia californica Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  SEINET11855621  Euchiton gymnocephalus J. P. Tracy 1948-9-26 18232 Humboldt at S end of Fickle Hill, 6 mi SE of Arcata 610 Comment
  UC485713  Euchiton sphaericus Joseph P. Tracy 1915-9-12 4677 Humboldt Mouth of Laribee Creek Northern Coast Ranges, Mouth of Laribee Creek 60 Comment
  CAS-BOT-BC310489  Euchiton sphaericus Joseph P. Tracy 1915-9-12 4677 Humboldt Northern Coast Ranges. Mouth of Laribee Creek 60 Comment
  CAS-BOT-BC206802  Euonymus occidentalis Doris K. Kildale 1926-7-22 2417 Humboldt Metropolitan, woods near Canyon Park Comment
  JEPS9605  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1935-5-24 13823 Humboldt in woods 3 mi. s.e. of business district Eureka 91 Comment
Read comments
May 24 2013
  HSC8002  Euphorbia crenulata Lincoln Constance 1934-5-24 646 Humboldt S Fork Eel River 122 Comment
  CAS-BOT-BC312212  Eurybia radulina Doris K. Kildale 1927-7-25 3839 Humboldt Table Bluff near lighthouse Comment
  UC1222977  Eurybia radulina Joseph P. Tracy 1950-8-20 19319 Humboldt 2 mi sw of Orleans Comment
  HSC97536  Euthamia occidentalis Ivy Watson 2008-9-17 18 Humboldt Mad River Park on West End Rd., near pumping station, 200 ft. from the water 8 Comment
  UCSB1573  Fallopia sachalinensis Parks, H.; Parks, S. 1952-07 Humboldt South of the Elk River Bridge on Highway 10 Comment
  HSC76570  Festuca californica Dennis Kearns 1981-6-24 11 Humboldt Near Cedar Camp 1219 Comment
  UC53434  Festuca californica unknown 1896-6-9 Humboldt South Fork Mts. Northern Coast Ranges Comment
  RSA273307  Festuca californica var. californica Thomas W. Nelson, Jane P. Nelson 1976-6-16 2740 Humboldt West of Alder Springs along 2S07. 1524 Comment
  UC187103  Festuca idahoensis Joseph P. Tracy 1911-7-6 3338 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC32491  Festuca occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5722 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC1145212  Festuca occidentalis Joseph P. Tracy 1937-5-30 15305 Humboldt 5 mi n Blocksburg; Larrabee Creek 365 Comment
  UCD66180  Festuca occidentalis A. H. Murphy 1948-6-30 Humboldt 2 miles west of McComb's Ranch, Bald Hills, 7-8 miles southeast of Orick. Comment
  BLMAR39  Festuca perennis Brad Barr 39 Humboldt King range, hidden valley enclosure Comment
  CAS-BOT-BC278971  Festuca rubra Malcom A. Nobs; S. Galen Smith 1949-8-3 1171 Humboldt Around Fields Landing Comment
  UCD66374  Festuca rubra Spadoni; Ottoson 1999-7-13 PDR 114029 9 Humboldt Hills above Showers Pass towards Kneeland from Hwy 36, Soldiers Grove. At Eaten Rough Mtn. area, near Bridgeville. Comment
  SEINET200688 Image available Festuca subuliflora J. P. Tracy 1900-5-22 801 Humboldt Immediate vicinity of Eureka 0 Comment
  UCD66488  Festuca subuliflora G. L. Stebbins Jr.; G. L. Church 1941-5-27 3109 Humboldt At Strong's Station, on Van Duzen River. Comment
  CHSC13615  Fragaria chiloensis C. Eiser 1974-4-10 22 Humboldt Along coast, between Orick and Prairie Creek. Redwoods State Park, on bluffs overlooking ocean. Comment
  HSC103976  Fragaria chiloensis C. Reynolds 2015-4-12 35 Humboldt Along Freshwater Beach, near the Kuchel Visitor Center 1 Comment
  CAS-BOT-BC453522  Fragaria chiloensis Doris K. Kildale 1927-3-24 3947 Humboldt Flumer Creek Comment
  RSA183571  Fragaria chiloensis R. I. Bonn 1965-3-12 5 Humboldt 4 miles W of Arcata on Lanphere road. Comment
  RSA46479  Fragaria chiloensis Doris K. Kildale 1927-3-24 2947 Humboldt Fleener Creek Comment
  CAS-BOT-BC457922  Fragaria vesca subsp. californica Doris K. Kildale 1925-12-27 1457 Humboldt Koveland Prairie 762 Comment
  HSC102047  Fragaria virginiana M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 950 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC44599  Fragaria virginiana Brad Klipfel 1973-6-10 105 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  BLMAR243  Frangula californica subsp. californica Jennifer Anthony-Wheeler 1997-7-24 243 Humboldt Lacks Creek, growing beside rd with ceanothus & rubus 1219 Comment
  CAS-BOT-BC52737  Frangula californica subsp. californica Carl B. Wolf 1927-8-30 1226 Humboldt 2 mi. s. of Petrolia on the Matole River, near point where road crosses river. Comment
  SD22835  Frangula californica subsp. californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  CAS-BOT-BC59966  Frangula purshiana H. E. McMinn 1922-8-5 347 Humboldt Along Van Duzen River Comment
  UC54925  Fraxinus latifolia Mrs. M. H. Manning 1902-4 Humboldt near Hupa 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
  UC15015  Fritillaria affinis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC40954  Galium aparine Linda M. Barker 1976-6-14 1601 Humboldt 3 mi. W of Arcata Comment
  HSC40043  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1976-7-1 2896 Humboldt Along ridge N of Bear Creek 1463 Comment
  JEPS6719  Galium bolanderi Joseph P. Tracy 1935-7-29 14339 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  HSC49978  Galium bolanderi M. A. Baker 1979-6-7 783 Humboldt N bank of road to Snow Mtn. 610 Comment
  HSC71717  Galium californicum M. A. Baker 1980-6-26 2441 Humboldt Near Sims Creek 610 Comment
  JEPS52859  Galium californicum subsp. californicum Lauramay T. Dempster 1963-7-9 3849 Humboldt 4.4 mi s Bridgeville (on Hwy 36 to Dinsmore) 457 Comment
  JEPS52873  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3861 Humboldt 2.3 mi s Weott; Avenue of the Giants 60 Comment
  JEPS52841  Galium muricatum Lauramay T. Dempster 1963-9-3 3920 Humboldt Hwy 299 just w Boise Creek (transmission line clearing) 304 Comment
  UC1196094  Galium parisiense Joseph P. Tracy 1946-8-25 17645 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  SEINET11117326  Galium parisiense Unknown 1913-1 4083 Humboldt Rogers ranch, below Bridgeville on Van Duzen River, on dry rocky slopes. Altitude 500 ft. Comment
  HSC19817  Galium porrigens var. porrigens B. D. Rogers, William J. Ferlatte 1966-6-15 2092 Humboldt Near Bridgeville Comment
  HSC39794  Galium trifidum Peter Sorensen 1976-8-8 Humboldt King Salmon 0 Comment
  HSC76185  Galium triflorum Overton, Butler 1979-7-24 9770 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC81937  Galium triflorum Thomas W. Nelson, Jane P. Nelson 1979-7-3 4956 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  OBI33244  Galium triflorum David J. Keil 1983-7-1 17258 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  UC169075  Galium triflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5470 Humboldt near Elk Prairie (Fruitland); North Coast Ranges Comment
  UC164849  Gamochaeta ustulata J. P. Tracy 1907-6-20 2573 Humboldt immediate vicinity Eureka 0 Comment
  HSC76357  Garrya buxifolia Denis Kearns 1981-7-6 47 Humboldt Near Mosquito Lake 1122 Comment
  HSC26847  Garrya elliptica Thomas W. Nelson 1971-1-9 325 Humboldt Patrick's Point State Park near Ceremonial Rock Comment
  HSC49815  Garrya elliptica R. York 1979-4-13 223 Humboldt College Cove, 1 mi N of Trinidad Comment
  UCSB15521  Garrya elliptica Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samosa on peninsula on western side of Humboldt Bay. Comment
  UCD39985  Garrya fremontii Rodney Gale Myatt 1971-9-22 1200 Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  CAS-BOT-BC56267  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  UC32666  Gaultheria ovatifolia Chesnut and Drew 1888-8-6 Humboldt Head of Redwood Creek Comment
  CAS-BOT-BC58907  Gaultheria shallon Carl B. Wolf 1931-8-29 1242 Humboldt Near summit of Orick Hill on road to Weithchpec. 304 Comment
  CHSC27317  Gaultheria shallon T. B. Devine 1977-8-20 458 Humboldt Kneeland Road, 1 mi n of Kneeland. 548 Comment
  HSC98970  Gaultheria shallon Cara Witte 2008-8-5 993 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  JEPS66612  Gaultheria shallon Lincoln Constance 1934-5-31 751 Humboldt n side of (along) Bull Creek, w boundary of Park to Grasshopper Peak (Squaw Creek) Road, South Fork Eel River Bull Creek; Bull Creek Region, South Fork Eel River, Bull Creek Comment
  RSA1915  Gaultheria shallon C. B. Wolf 1930-10-30 1043 Humboldt Old Coast Road, 4 mi. so. of Thorn. 305 Comment
  SEINET3107001  Gaultheria shallon Steve Selva, Roger Jensen 1974-8-21 26 Humboldt Redwood grove adjacent to highway 101 rest stop. Approx 3 miles N of Trinidad. Comment
  UCR275108  Gaultheria shallon Charity A. Hartshorn 2016-5-14 34 Humboldt Arcata Community Forest 244 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
  HSC99578  Gayophytum diffusum subsp. parviflorum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 243 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
  POM214929  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  HSC76214  Gayophytum racemosum Overton, Butler 1979-7-24 9729 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC162854  Genista monspessulana J. P. Tracy 1906-4-22 2413 Humboldt immediate vicinity Eureka 0 Comment
  RSA46825  Gentiana plurisetosa Doris K. Kildale 1925-8-17 s.n. Humboldt Trinity Summit 1829 Comment
  HSC96490  Gentiana sceptrum Gordon Leppig 1997-8-3 635 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  RSA246869  Gentiana sceptrum Robert F. Thorne, P. C. Everett 1965-8-9 35288 Humboldt Big Lagoon. 3 Comment
  POM247167  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt Bald Mountain, near High Prairie. 1067 Comment
  UC524128  Gentiana sceptrum Ira L. Wiggins 1932-7-19 5892 Humboldt 1.5 mi n Trinidad Head Comment
  UC668046  Geranium carolinianum Joseph P. Tracy 1933-7-9 12643 Humboldt Willow Creek Trinity River Valley 152 Comment
  SEINET14153534 Image available Geranium molle Richard R. Halse 2015-1 9382 Humboldt Eureka; weedy area by a Texaco Station near 3543 Broadway St. and its intersection with McCullens Ave. 6 Comment
  UC1197394  Geranium molle Joseph P. Tracy 1910-5-29 3142 Humboldt Eureka Northern Coast Region 0 Comment
  HSC8656  Geranium molle Richard Spjut 1968-11-2 258 Humboldt On the SW slope of Chaparral Mtn. 701 Comment
  HSC89987  Geranium molle Leonel Arguello 1989-6-24 24 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata, Hunt parcel 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
  SEINET3356154 Image available Gilia capitata H. E. Parks, J. P. Tracy 1930-5-25 0793 Humboldt Near Bridgeville Comment
  UC1222733  Gilia capitata subsp. capitata Joseph P. Tracy 1950-6-15 18789 Humboldt 7 mi n Harris (Mail Ridge); n of Harris, Mail Ridge Comment
  JEPS69517  Gilia capitata subsp. capitata Lincoln Constance 1934-5-23 621 Humboldt sw slope upper end Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, Look Prairie 365 Comment
  HSC95157  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1990 Humboldt E side headwaters of Brushy Creek 800 Comment
  UC133634  Gilia capitata subsp. pacifica Joseph P. Tracy 1905-6-11 2188 Humboldt near Bucksport (region about Humboldt Bay); Region about Humboldt Bay, Northern Coast Region 0 Comment
  HSC16991  Gilia millefoliata J. Mustain 1963-4-20 41 Humboldt Big Lagoon Park Comment
  HSC95545  Gilia millefoliata Andrea Pickart 2002-5-13 101 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  UC23729  Gilia millefoliata Harley P. Chandler May, 1901 1135 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  HSC89597  Gilia tricolor subsp. tricolor M. Roantree 1985-5-24 59 Humboldt S of Trinidad Head summit near cross Comment
  CAS-BOT-BC266491  Githopsis diffusa L. R. Abrams 1918-6-16 7176 Humboldt Willow Creek Comment
  HSC97919  Githopsis specularioides Cara Witte 2007-6-19 303 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  UC1602182  Githopsis specularioides Harley P. Chandler Jun 1901 1345 Humboldt Hupa Reservation North Coast Ranges 152 Comment
  SEINET6996156  Githopsis specularioides Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  UC1199277  Glebionis segetum Joseph P. Tracy 1933-8-22 12977 Humboldt at Eureka 6 Comment
  UC154100  Glehnia littoralis subsp. leiocarpa J. P. Tracy 1901-8-7 1261 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  UCD127514  Glehnia littoralis subsp. leiocarpa Linda M. Barker 1976-6-22 1626 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC10076  Glyceria X occidentalis J. A. Waller 1965-5-2 32 Humboldt Mud flats off of Samoa Comment
  CDA2166  Glyceria declinata E. C. Whitney 1968-7-16 Humboldt Arcata Bottom area. 0 Comment
  HSC10075  Glyceria declinata D. J. Wilder 1965-4-24 10 Humboldt In field where Little River crosses U.S. 101 Comment
  HSC102148  Glyceria elata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1055 Humboldt Patterson Meadows 1555 Comment
  HSC34278  Glyceria elata Ken Irwin 1975-8-13 Humboldt Grogans Hole Area 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
  UC53405  Glyceria elata Joseph Burtt Davy 1899-7-26 5881 Humboldt above Martin's Ferry (swamp at Sam Lone's<sp?>) Comment
  HSC40385  Glyceria striata Thomas W. Nelson, James Nelson 1976-7-28 3078 Humboldt W of Alder Springs. 1524 Comment
  CAS-BOT-BC302538  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-7-1 24026 Humboldt Spruce Cove, Trinidad Comment
  HSC103576  Gnaphalium palustre Thomas W. Nelson, Jane Nelson 1981-8-10 6736 Humboldt Eureka; along old logging road just south of Lundbar Hills. Comment
  UC1199353  Gnaphalium palustre Joseph P. Tracy 1918-7-2 4985 Humboldt upper Mattole Valley; Northern Coast Ranges, Mattole Valley 152 Comment
  HSC28140  Goodyera oblongifolia J. D. Ackerman 1973-8-23 117 Humboldt 2 mi. N of Manila Comment
  UC1196435  Goodyera oblongifolia Joseph P. Tracy 1934-8-31 13642 Humboldt Kneeland Prairie 762 Comment
  UC1196437  Goodyera oblongifolia J. P. Tracy 1900-7-4 879 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  CAS-BOT-BC304761  Grindelia hirsutula Carl B. Wolf 1927-8-29 1214 Humboldt Devil's Gate, south of Cape Mendocino Comment
  HSC35626  Grindelia hirsutula Thomas W. Nelson, James Nelson 1975-8-5 2139 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  JEPS94281  Grindelia hirsutula Vernon Oswald and Lowell Ahart 1997-9-4 8845 Humboldt Big Lagoon County Park at the sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  UC1093969  Grindelia hirsutula Herbert L. Mason 1932-7-21 7100 Humboldt Big Lagoon Big Lagoon Comment
  BLMAR308  Grindelia stricta Jennifer Anthony-Wheeler 2002-7-1 308 Humboldt South Spit 6 Comment
  UCR48860  Grindelia stricta R. D. Goeden 1987-9-2 870902- 21 Humboldt Cape Mendocino (Cape Ridge) on bank above Mattole Rd. 183 Comment
  RSA259557  Grindelia stricta var. stricta Gary S. Lester 1974-8-24 528 Humboldt Arcata salt marsh on Humboldt Bay at the 'G' St. oxidation plant. 1 Comment
  HSC56354  Hackelia bella Griswold, Butler 1979-7-10 6325 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA254793  Hackelia bella D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  HSC99536  Hackelia californica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 201 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1738 Comment
  HSC58072  Hackelia micrantha G. L. Clifton, Griswold 1979-8-1 11963 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  JEPS67933  Hackelia micrantha W. L. Jepson 1902-7-16 2041 Humboldt Trinity Summit 2133 Comment
  SEINET11678982  Hainardia cylindrica J. P. Tracy 1938-1 16071 Humboldt mouth of Eel River 3 Comment
  HSC57955  Hastingsia alba G. L. Clifton, Griswold 1979-7-31 11642 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58205  Helenium bigelovii Walter Overton 1979-8-1 12319 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  SD128471  Helenium bigelovii L. E. Urbatsch, Patricia B. Cox and Alan W. Lievens 1988-8-17 6103 Humboldt Road to Denny from California 299; 1.7 miles to left fork; 6.7 miles to right fork, 7NO4; collection site 6.4 miles. Comment
  UC180187  Helenium bigelovii Joseph P. Tracy 1914-7-4 4540 Humboldt at Murphy Ranch, High Prairie on Bald Mountain Northern Coast Ranges, Bald Mountain 1066 Comment
  UC175986  Helenium bolanderi J. P. Tracy 1912-7-22 3792 Humboldt near Loleta 91 Comment
  UC1070058  Helminthotheca echioides H. L. Person 1932-8-20 19487 Humboldt Korbel Eureka Quad. Korbel Comment
  CAS-BOT-BC305849  Helminthotheca echioides F. J. Kirby 1958-7-1 s.n. Humboldt Near Bridgeville 304 Comment
  HSC44613  Hemitomes congestum R. York 1978-6-5 190 Humboldt 12 mi. up Waterman Ridge Rd. off of Hwy. 299. Bulk Collection 123 610 Comment
  HSC39616  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1976-6-15 2720 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  SBBG8413  Hemizonia congesta subsp. tracyi H. and M. Dearing 1939-5-24 3426 Humboldt near Capetown Comment
  UC175967  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1908-6-8 2629 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC275452  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-18 7215 Humboldt Cape Ridge Northern Coast Ranges, Cape Mendocino 304 Comment
  UC495620  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1927-5-8 7983 Humboldt vicinity of Garberville 121 Comment
  RSA168837  Hemizonia tracyi Joseph P. Tracy 1950-6-8 18757 Humboldt At Domingo Hill Comment
  CHSC1956  Heracleum lanatum A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  HSC56147  Heracleum maximum G. L. Clifton, Terry Griswold 1979-8-1 11981 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  RSA178554  Hesperolinon micranthum Joseph P. Tracy 1950-7-6 18994 Humboldt Buck Mountain: High meadow on west side, 3 miles south of Burr Valley, on the Albee Road. 1159 Comment
  UC1541522  Heterocodon rariflorum H. E. Parks and J. P. Tracy 1934-6-27 11084 Humboldt Grouse Mountain Comment
  CAS-BOT-BC143654  Heteromeles arbutifolia Doris K. Kildale 1927-12-1 4214 Humboldt Klamath River at Orleans Comment
  UC1222321  Heteromeles arbutifolia Joseph P. Tracy 1950-9-22 19380 Humboldt about 3 mi sw Orleans (above Bluff Creek) Comment
  HSC5311  Heterotheca oregona Paul Shields Aug 1955 Humboldt 1 mi. N of Weott Comment
  CAS-BOT-BC311053  Heterotheca oregona var. oregona John Thomas Howell 1936-8-29 12889 Humboldt Bluffs of Eel River, 11 miles n. of Garberville Comment
  BLMAR317  Heuchera micrantha Jennifer Anthony-Wheeler 2002-8-9 317 Humboldt Headwaters Forest Reserve, growing in a pond with large floating logs 426 Comment
  HSC79502  Hieracium albiflorum Kenneth Clark 1980-6-14 687 Humboldt N Fork of Deadman's Gulch 107 Comment
  SBBG8341  Hieracium albiflorum H. and M. Dearing 1939-5-24 3414 Humboldt Redwood Hwy, S of Dyerville Comment
  HSC47961  Hieracium albiflorum Brad Klipfel 1974-5-25 429 Humboldt Horse Mtn. Comment
  HSC98711  Hieracium albiflorum Cara Witte 2007-7-25 577 Humboldt Forest Service Road 5N10. 2.5 miles east of intersection with National Forest 1. 1327 Comment
  RSA0016046  Hippuris vulgaris L. R. Abrams, R. C. Bacigalupi 1922-6-25 8266 Humboldt Big Lagoon, south of Orick. Comment
  HSC37237  Holcus lanatus Lon Hall 1975-6-19 401 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC37948  Holcus lanatus Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  RSA246896  Holcus lanatus R. F. Thorne, P. Everett 1965-8-8 35267 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  UC1056070  Holcus lanatus J. I. Mallory 1955-7-22 117 Humboldt 1 mi n Luke Prairie (Quad 29-B-2); Peavine Ridge 701 Comment
  UCD84886  Holcus mollis Joseph P. Tracy 1948-7-31 18079 Humboldt Eureka. 30 Comment
  JEPS45041  Holodiscus discolor W. L. Jepson 1902-7-29 2125 Humboldt Willow Creek; Three Creeks; Expedition from Ukiah to the Hupa Indian Reservation; Willow Creek to Three Creeks, near summit 914 Comment
  SDSU9080  Holodiscus discolor D. F. Howe 1964-8-10 3950 Humboldt 1.8 miles from Ferndale on road to Petrolia. 305 Comment
  UC1198704  Holodiscus discolor Joseph P. Tracy 1911-7-5 3293 Humboldt near mouth of Willow Creek (Northern Coast Ranges, Valley of Trinity River); Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC154211  Holodiscus discolor Joseph P. Tracy 1901-7-31 1231 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  UC666853  Holodiscus discolor Joseph P. Tracy 1936-8-7 15114 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  UC1132100  Hordeum brachyantherum subsp. brachyantherum H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad. Comment
  CAS-BOT-BC289563  Hordeum marinum subsp. gussoneanum David D. Keck 1948-7-2 6001 Humboldt Ridge east of Redwood Creek on road to Willow Creek on US route 299 Comment
  CHSC96732  Hordeum murinum subsp. glaucum Gordon Leppig 1999-4-28 1127 Humboldt Arcata Bottoms. North of Lamphere Rd. UTM zone 10, 4529N, 406E. 1 Comment
  UC187307  Hordeum murinum subsp. leporinum Joseph P. Tracy 1911-6-25 3243 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  HSC23680  Horkelia tridentata var. flavescens D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5054 Humboldt ca. 6 miles W of Hoopa, along road from Redwood Creek to Hoopa Comment
  BLMAR165  Hosackia crassifolia Donald Hazlett 1994-6-7 165 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  NY15458  Hosackia denticulata V. K. Chesnut 1888-7-10 s.n. Humboldt Along Mad River, near Jarnigan's Comment
  HSC36320  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1913 Humboldt USFS Rd. 2S08 to Pine Mtn. Comment
  HSC100517  Hosackia purshiana Carl C. Marshall Jun 1885 83 Humboldt Near Bug Creek. Comment
  HSC39777  Hydrocotyle ranunculoides Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  POM258591  Hydrophyllum occidentale Lincoln Constance, A. A. Beetle, Joseph P. Tracy 1940-5-17 2618 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  UC582691  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-25 15538 Humboldt Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC58119  Hypericum anagalloides G. L. Clifton, Griswold 1979-8-1 12088 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC175706  Hypericum anagalloides Joseph P. Tracy 1912-7-14 3747 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC275343  Hypericum anagalloides Joseph P. Tracy with H. E. Parks 1924-8-3 6757 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  RSA12422  Hypericum androsaemum C. B. Wolf 1934-7-2 5874 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  UC1222165  Hypericum concinnum Joseph P. Tracy 1950-5-24 18688 Humboldt where Knight's Valley enters Alexander Valley (and leaves Muyacama Creek) Comment
  SD93061  Hypericum perforatum W. Bertsch 1953-7-30 225 Humboldt Highway 101 at Dyerville. 60 Comment
  HSC95115  Hypericum perforatum Andrea Pickart 2002-7-9 167 Humboldt Bracut Marsh, in a transitional zone between brackish and riparian 9 Comment
  RSA424593A  Hypericum perforatum T. S. Elias, Barbara A. Elias 1987-8-26 10630 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge. Comment
  CAS-BOT-BC401304  Hypericum scouleri Ira L. Wiggins 1932-7-18 5886 Humboldt Between Arcata and Bayside Comment
  HSC90427  Hypochaeris glabra Jean Hanson 1980-6-22 91 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka. W end of island; ca. 100 ft. inland from shore Comment
  CAS-BOT-BC311432  Hypochaeris radicata Alice Eastwood 1923-8-16 12332 Humboldt Carlotta Comment
  HSC5867  Hypochaeris radicata R. C. Hoover 1965-5-13 39 Humboldt At the end of Murray Rd. about 1 1/2 mi. W of McKinleyville Comment
  UC1199470  Hypochaeris radicata Joseph P. Tracy 1926-5-2 7422 Humboldt near the s fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC668131 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
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Feb 27 2012
  HSC55330  Ipomopsis aggregata Griswold, Butler 1979-7-12 7170 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  RSA78187  Iris Rimo Bacigalupi 1951-6-14 3414 Humboldt Pseudotsuga and Abies concolor, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain) 1433 Comment
  UCSB28085  Iris douglasiana Phelps, M. 1972-3-19 Humboldt 1.5 mi. from Garberville; along Old Briceland Rd; 0.5 mi. north of roadside 213 Comment
  UC1174761  Iris douglasiana L. W. Lenz and E. K. Balls 1951-5-8 16508 Humboldt 14.7 mi n Trinidad (Hwy 101) 6 Comment
  UC1174845  Iris purdyi P. C. Everett and E. K. Balls 1959-10-26 23976 Humboldt 5.3 mi se Honeydew (along Old Coast Road to Ettersburg) 426 Comment
  HSC63123  Iris tenax subsp. klamathensis M. A. Baker 1979-5-17 731 Humboldt Along Wilson Creek, just E of FS Rd. 15N01 Comment
  HSC66484  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 435 Humboldt FS Rd. 12N20, 0.9 mi. from FS Rd. 15N01, Orleans 762 Comment
  HSC44639  Iris tenuissima Diane L. Reed 1978-4-22 34 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC70745  Iris tenuissima R. York 1980-5-17 519 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC69937  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek, near Bosworth's. 457 Comment
  CAS-BOT-BC112459  Isolepis cernua Carl B. Wolf 1927-8-22 790 Humboldt Big Lagoon Comment
  HSC13941  Ixia maculata R. van Weemen van Noord 1966-4-16 19 Humboldt 100 yds. S of N end of Samoa Drag St. 9 Comment
  CHSC105149  Juncus bolanderi Peter F. Zika 2008-10-19 24230 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach (North Coast NCo) 110 Comment
  CHSC96448  Juncus bolanderi Gordon Leppig 1998-8-23 1070 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E 4557202N. 3 Comment
  HSC13998  Juncus bufonius C. B. Wolf 1927-8-22 780 Humboldt Big Lagoon Comment
  HSC39051  Juncus bufonius Linda M. Barker 1976-6-22 1619 Humboldt 3 mi. W of Arcata Comment
  UC213332  Juncus confusus Joseph P. Tracy 1919-9-22 5272 1/2 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC74671  Juncus effusus subsp. pacificus Gail Newton 1981-8-5 2360 Humboldt Near Bug Creek, E Fork. 820 Comment
  SD51260  Juncus ensifolius var. ensifolius Darley F. Howe 1961-8-1 Humboldt 9 Miles north of Arcata on #101. Comment
  HSC74174  Juncus exiguus M. A. Baker 1980-7-22 3123 Humboldt Near Grogan Hole. 1676 Comment
  CHSC105160  Juncus lescurii Peter F. Zika 2008-11-3 24275 Humboldt Sunny meadow just above salt marsh, with Juncus breweri, Festuca arundinacea, Baccharis, Ammophila, mouth of Elk River NW of Route 101 bridge, 2 air km S of Eureka; North Coast (NCo) 2 Comment
  RSA246873  Juncus nevadensis var. inventus Robert F. Thorne, Percy C. Everett 1965-8-7 35174 a Humboldt Big Lagoon. 2 Comment
  UC183774  Juncus occidentalis Joseph P. Tracy 1908-6-22 2901 Humboldt between Van Duzen River and Mad River (on Dinsmore's Ranch); Northern Coast Ranges 1066 Comment
  POM292636  Juncus patens Lyman Benson 1929-7-14 1742 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  CDA28713  Juncus planifolius P. F. Zika 2008-10-19 24229 Humboldt East side of Route 101, near Exit 728 for Trinidad Beach. Elevation: 110 meters. 0 Comment
  UC1152084  Juncus tenuis Joseph P. Tracy 1928-6-24 8464 Humboldt Valley of South Yager Creek 762 Comment
  RSA168864  Juncus xiphioides Joseph P. Tracy 1938-7-24 16086 Humboldt Pacific and A Streets. Eureka. 0 Comment
  HSC100476  Kalmia glauca Carl C. Marshall Jun 1886 302 Humboldt Trinity Summit. Comment
  HSC82168  Kalmia polifolia D. K. Imper 1985-6-13 Humboldt Edge of Waterdog Lake 1768 Comment
  CAS-BOT-BC235882  Keckiella corymbosa Milo S. Baker 1927-8-15 2459 b Humboldt Bed of Eel R. at S. Fork Station Comment
  CAS-BOT-BC235890  Keckiella corymbosa Carl D. Duncan 1920-9-21 333 Humboldt Hoopa Comment
  RSA79855  Keckiella corymbosa F. W. Peirson 1926-7-12 7025 Humboldt Klamath River near Weitchpec. Comment
  JEPS10901  Keckiella lemmonii Joseph P. Tracy 1929-8-4 8648 Humboldt ridge between Bull Creek and Mattole River 762 Comment
  UC1245365  Keckiella lemmonii Joseph T. Gregory 1929-8-4 24 Humboldt on road from Petrolia to Dyerville (Windy Nip Gap); Windy Nip Gap Comment
  HSC61762  Kickxia spuria Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan, 1 mi. above Pecwan, upper road Comment
  UC1103696  Koeleria macrantha Joseph P. Tracy 1934-6-19 13233 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC1103698  Koeleria macrantha Joseph P. Tracy 1929-7-4 8627 Humboldt French Camp Ridge 1066 Comment
  UC50452  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6189 Humboldt Bear River Ridge Comment
  HSC57881  Kyhosia bolanderi Overton, Butler 1979-7-31 11419 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1223072  Lactuca serriola Joseph P. Tracy 1949-8-8 18402 Humboldt at Willow Creek (in Frank Graham's orchard); Trinity River Valley 152 Comment
  JEPS40365  Lagophylla ramosissima Lincoln Constance 1934-5-29 729 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC1223225  Lagophylla ramosissima Joseph P. Tracy 1950-8-4 19259 Humboldt ne lookout ((at head of Canoe Creek)); Bull Creek State Park, Grasshopper Peak Comment
  UC169331  Lagophylla ramosissima Joseph P. Tracy 1912-8-3 3965 Humboldt opposite Buck Mountain (in field); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  POM56119  Lapsana communis Joseph P. Tracy 1918-6-23 4957 Humboldt Around Humboldt Bay: Outskirts of Arcata. 61 Comment
  UCSB30626  Lapsana communis Edwards, David 1974-7-13 Humboldt NE facing bank of ditch at the NE end of a field located to the SW of the intersection of Fickle Hill Rd. and Hill St., ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  CAS-BOT-BC337995  Lasthenia californica Doris K. Kildale 1928-5-15 6031 Humboldt Bug Creek, Chaparral Mountain 1524 Comment
  RSA167198  Lasthenia californica Joseph P. Tracy 1942-5-16 17357 Humboldt Near Garberville, on road to Harris, ! mile NE of town. 305 Comment
  UC249830  Lasthenia californica subsp. californica Joseph P. Tracy 1923-7-4 6520 Humboldt valley South Yager Creek; Northern Coast Ranges 762 Comment
  UC552256  Lasthenia glaberrima Harold E. Parks and Joseph P. Tracy 1935-6-16 11274 Humboldt lower nw slopes Buck Mt. 792 Comment
  UC1222416  Lathyrus jepsonii var. californicus Joseph P. Tracy 1942-7-1 17361 Humboldt opposite Buck Mountain; Van Duzen River 762 Comment
  SEINET5021117  Lathyrus latifolius Unknown 2002-8-17 81 b Humboldt Beach of Eel River, 10 miles S of Garberville on Hwy 101, at Benbow Drive. Comment
  HSC14747  Lathyrus littoralis R. E. Hafenfeld 1965-5-9 45 Humboldt 1/4 mi. N of Squashan Cr. near Gold Bluff Beach Rd. Comment
  RSA34308  Lathyrus littoralis C. Kistner 1935-5-21 s.n. Humboldt Samoa Comment
  HSC102562  Lathyrus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1549 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  SEINET5327351  Lathyrus palustris J. Tracy 1907-7-20 2593 Humboldt near Samoa; region about Humboldt Bay 152 Comment
  UC1222409  Lathyrus polyphyllus Joseph P. Tracy 1948-8-15 18118 Humboldt 1 1/2 miles north of Forest Service Public Camp on Trinity Summit Road. Happy Camp Mountain (In Trinity Summit Range, 6 miles northeast of Hawkins Bar.) Comment
  UC15347  Lathyrus polyphyllus H. N. Bolander 1866-1 6508 Humboldt Little Bear Harbor Comment
  UC303183  Lathyrus polyphyllus Joseph P. Tracy 1923-6-22 6344 Humboldt Bald Mt. Northern Coast Ranges 914 Comment
  UCR84790  Lathyrus tingitanus Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  UC175635  Lathyrus vestitus Joseph P. Tracy 1913-6-26 4352 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC325993  Layia carnosa Greg de Nevers 2001-4-18 12253 Humboldt Lanphere-Christenson dunes, near Arcata 9 Comment
  UC154035  Ledum glandulosum J. P. Tracy 1901-6-16 1153 Humboldt immediate vicinity of Eureka 0 Comment
  HSC36107  Lemna minor Neil D. Ledet 1973-11-29 7 Humboldt 16 mi. S of Ferndale, N side of Cape Town along county Rd., floating on ranch pond Comment
  RSA94973  Leontodon nudicaulis F. W. Peirson 1926-7-13 7056 Humboldt Near Blue Lake, Mad River. Comment
  CAS-BOT-BC339128  Leontodon saxatilis subsp. saxatilis Carl B. Wolf 1927-8-22 777 Humboldt Big Lagoon Comment
  CHSC33097  Leontodon saxatilis subsp. saxatilis J. P. Smith 1971-10-6 4966 Humboldt Dunes at the end of Murray Road in McKinleyville. Comment
  HSC64786  Lepidium oxycarpum J. P. Smith, J. O. Sawyer 1976-5-2 8624 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  UC709460  Lepidium strictum Joseph P. Tracy 1941-5-4 16866 Humboldt Scotia 30 Comment
  CAS-BOT-BC12986  Lepidium virginicum Henry M. Pollard 1946-8-10 s.n. Humboldt South of Klamath River and east of Perch Creek. Orleans Region. Comment
  UC1173729  Lepidium virginicum Joseph P. Tracy 1939-4-29 16245 Humboldt mouth of Slate Creek Klamath River 121 Comment
  CAS-BOT-BC226527  Leptosiphon acicularis M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles N. of Garberville Comment
  CAS-BOT-BC226528  Leptosiphon acicularis Doris K. Kildale 1927-7-10 3736 Humboldt Gans Prairie - Bald Hills road Comment
  POM203227  Leptosiphon androsaceus M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  RSA12525  Leptosiphon nuttallii C. B. Wolf 1934-7-3 5911 Humboldt 21 miles from Orick on road to Weitchpec. 152 Comment
  CDA8182  Lessingia filaginifolia var. californica T. C. Fuller 1961-9-28 7048 Humboldt East of Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  HSC5934  Lessingia nemaclada J. P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC39615  Lewisia nevadensis Thomas W. Nelson, Jane P. Nelson 1976-6-15 2719 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  RSA331970  Leymus mollis subsp. mollis Dave Kelly, Walter Wisura 1985-7-28 4062 Humboldt Outer sand dunes near Manilla, Samoa Peninsula near Eureka Comment
  RSA34294  Leymus mollis subsp. mollis J. Wendell Howe 1933-5-23 s.n. Humboldt Somoa Comment
  JEPS17506  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. Redwook Creek Comment
  UC205462  Lilaeopsis occidentalis Joseph P. Tracy 1920-8-29 5391 Humboldt mouth of Little R.; Northern Coast Ranges 6 Comment
  UC13798  Lilium columbianum Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  SEINET3887487  Lilium columbianum Thomas Nelson, Jane P. Nelson; James Nelson 1975-7-15 2036 Humboldt Along old highway 101 north of Trinidad.; 0 Comment
  UCSB24780  Lilium columbianum Keefe, Joseph 1967-7-8 Humboldt 20 miles north of Eureka 1 Comment
  CAS-BOT-BC130637  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  CAS-BOT-BC130638  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  CAS-BOT-BC130646  Lilium kelloggii Alice Eastwood; John Thomas Howell 1937-6-23 4851 Humboldt 5 miles from Kneeland on road to Korbel Comment
  HSC15575  Lilium kelloggii D. E. Anderson 1962-7-14 2250 Humboldt 2 mi. W of Kneeland Post Office Comment
  RSA74747  Lilium kelloggii Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On road to Bald Mountain, east of Korbel Comment
  UC1198246  Lilium kelloggii Joseph P. Tracy 1949-7-4 18324 Humboldt near Butler Valley junction with Kneeland road (Kneeland Prairie); Kneeland Prairie 670 Comment
  CAS-BOT-BC130686  Lilium occidentale Doris K. Kildale 1925-6-30 1337 Humboldt On road to Humboldt Country Club 7 mi from Eureka Comment
  UC1035025  Lilium occidentale A. M. Vollmer and L. Beane Jul 1953 118 Humboldt Comment
  UC175928  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  UC666959  Lilium occidentale Joseph P. Tracy 1927-9-25 8377 Humboldt 2 mi s Field's Landing (at Still's Ranch) 6 Comment
  UC666951  Lilium pardalinum Joseph P. Tracy 1930-7-17 8999 Humboldt McKay Camp; South Fork Mountain 1676 Comment
  HSC54016  Lilium pardalinum subsp. pardalinum Griswold, Butler 1979-7-12 7158 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC58026  Lilium pardalinum subsp. pardalinum G. L. Clifton 1979-7-31 11837 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC132960  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-1 147 Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  UC1191670  Limonium californicum Malcolm A. Nobs and S. Galen Smith 1949-8-3 1203 Humboldt salt marshes bordering Humboldt Bay (ca 2 mi n of Eureka) Comment
  UC1198596  Linanthus androsaceus Joseph P. Tracy 1927-6-12 8168 Humboldt Horse Mountain Northern Coast Ranges 1066 Comment
  UC52735  Linanthus androsaceus Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC1198569  Linanthus bicolor Joseph P. Tracy 1911-6-25 3255 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC213380  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1920-8-13 5349 Humboldt w of Klamath River (between Pine Creek and Tuley Creek, French Camp Ridge); Northern Coast Ranges, French Camp Ridge 914 Comment
  UCR37554  Linaria canadensis var. texana L. P. Janeway 1983-5-19 299 Humboldt Samoa Peninsula c. 1/2 mi north of Eureka-Samoa bridge. Between RR tracks and old Samoa Road near W edge of Arcata Bay 3 Comment
  RSA0087555  Linnaea borealis subsp. longiflora S. S. Tillett 1956-7-6 614 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  UC169339  Linnaea borealis var. longiflora Joseph P. Tracy 1911-7-12 3521 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek (at Three Creeks); Northern Coast Ranges, bwt Three Creeks and Willow Creek mou 914 Comment
  SD51257  Linum bienne Darley F. Howe 1961-8-1 348 Humboldt 9.0 miles north of Arcata on Highway 101. Comment
  HSC59585  Listera cordata var. nephrophylla Rick Lundquist 1979-5-13 84 Humboldt 0.5 mi. down private rd. to campground at Korbel, 1 mi. E of Blue Lake 30 Comment
  HSC63078  Listera cordata var. nephrophylla David Wheeler 1979-4-23 82 Humboldt Camp Bauer, Korbel, just past the entrance gate, on the left Comment
  JEPS37741  Lithocarpus densiflorus W. L. Jepson 1902-6 2138 Humboldt Bear River Range Comment
  UC1196366  Lithocarpus densiflorus Joseph P. Tracy 1908-6 2846 Humboldt nw slope Buck Mountain; Northern Coast Ranges 609 Comment
  UC1196368  Lithocarpus densiflorus Joseph P. Tracy 1923-5-13 6201 Humboldt Strongs Station Northern Coast Ranges (forest on Van Duzen River) 60 Comment
  SACT002878  Lithocarpus densiflorus D. McIntosh, L. Sanny 1959-3-1 Humboldt Densely covered hillside Comment
  POM270414  Lithocarpus densiflorus var. densiflorus Lyman Benson 1927-7-12 224 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  UC1196490  Lithophragma affine Joseph P. Tracy 1941-3-26 16819 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1196492  Lithophragma affine Joseph P. Tracy 1918-5-26 4944 Humboldt lower foothills towards Redwood Creek Grouse Mt.; Northern Coast Ranges, , towards Redwood Creek 762 Comment
  HSC89574  Lobularia maritima M. Roantree 1985-5-15 48 Humboldt E side of Trinidad Head, on slope above Trinidad Bay beach Comment
  CAS-BOT-BC283405  Lolium multiflorum Carl B. Wolf 1927-8-29 1215 Humboldt Seacoast, Devil's Gate, S of Cape Mendocino Comment
  UC1103060  Lolium multiflorum Joseph P. Tracy 1915-6-20 4653 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC1541549  Lolium multiflorum Harold E. Parks May 1933 4305 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  HSC99582  Lolium perenne K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 247 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
  POM188113  Lolium perenne Marcus E. Jones 1931-7-16 29212 Humboldt Arcata. Comment
  SEINET200586 Image available Lolium perenne J. P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  SEINET200609 Image available Lolium temulentum J. P. Tracy 1935-5-25 13893 Humboldt Dobbyn Creek 152 Comment
  UCD66658  Lolium temulentum A. H. Murphy 1947-5-12 Humboldt Fairgrounds at Ferndale. Comment
Read comments
May 24 2012
  SEINET5527019 Image available Lomaria spicant Hicks, Carpenter 1977-7-12 Humboldt Orick Comment
  UC1222610  Lomatium californicum Joseph P. Tracy 1950-6-15 18804 Humboldt 7 mmi. n. Harris (chaparral area at Jenk's ranch) Comment
  UC154252  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy July, 1908 2890 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt & Trinity Co.'s); Northern Coast Ranges, Humboldt & Trinity Co.'s 914 Comment
  HSC34919  Lomatium dissectum var. dissectum Thomas W. Nelson, James Nelson 1975-5-24 1855 Humboldt McKeown Ranch, N of Dinsmore. Comment
  POM32369  Lomatium dissectum var. dissectum Lincoln Constance, Alan Beetle, Joseph Tracy 1940-5-17 2617 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  HSC50942  Lomatium macrocarpum G. L. Clifton, Overton 1979-6-3 3765 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  HSC74029  Lomatium macrocarpum Gail Newton 1980-7-22 1681 Humboldt Near Devils Backbone 1554 Comment
  HSC74284  Lomatium macrocarpum M. A. Baker 1980-7-11 2784 Humboldt Near Red Mtn. 1341 Comment
  UC1197155  Lomatium macrocarpum Joseph P. Tracy 1937-7-24 15522 Humboldt head of Devil's Hole (Trinity Summit); , Devil's Hole 1676 Comment
  JEPS14247  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Northern Coast Ranges, Brannan Mt. 1219 Comment
  UC647476 Image available Lomatium tracyi Joseph P. Tracy 1933-7-25 12895 Humboldt Grouse Mountain. 1524 Comment
  OBI81634  Lomatium utriculatum Tracey Call, Viola Call 1964-6-19 2271 Humboldt Dry, west-facing hillside 1 mile north of Harris P.O. and ca 3.5 miles south of Harris Jct. Comment
  CAS-BOT-BC241402  Lonicera David D. Keck 1948-7-1 5975 Humboldt South side of Big Lagoon Comment
  POM161636  Lonicera ciliosa Joseph P. Tracy 1921-6-19 5836 Humboldt Brannan Mountain; viz. ridge north of Willow Creek, between Willow and Campbell creeks; North Coast Ranges. Comment
  HSC3946  Lonicera conjugialis J. P. Tracy 1932-7-11 10414 Humboldt Trinity Summit 1524 Comment
  UC602562  Lonicera conjugialis Joseph P. Tracy 1930-7-19 9094 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UCD137378  Lonicera involucrata Linda M. Barker 1976-4-30 1400 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET5222458  Lonicera involucrata Unknown 2002-8-22 85 Humboldt McKinleyville, along Fischer Road just N of the Mad River Comment
  CAS-BOT-BC241488  Lonicera involucrata var. ledebourii Ashley C. Browne 1938-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  CAS-BOT-BC241494  Lonicera involucrata var. ledebourii Carl B. Wolf 1927-8-22 770 Humboldt Big Lagoon Comment
  HSC37832  Lonicera involucrata var. ledebourii Thomas W. Nelson, James Nelson 1976-3-11 2264 Humboldt Beside Eel River just N of W terminus of Singley Rd. Comment
  HSC3930  Lonicera involucrata var. ledebourii R. A. Rasp 1964-5-7 37 Humboldt 2 mi. S of Korbel on Simpson Lumber Co. land. Comment
  HSC69640  Lonicera involucrata var. ledebourii R. Kalal 1980-5-18 19 Humboldt Entrance to Dry Lagoon State Park, along abandoned Rd. 21 Comment
  RSA18019  Lonicera involucrata var. ledebourii C. B. Wolf 1927-8-22 770 Humboldt Big Lagoon. Comment
  RSA21019  Lonicera involucrata var. ledebourii C. B. Wolf 1937-9-12 9327 Humboldt Dry Lagoon State Park; base of coastal cliffs. 5 Comment
  UCD137387  Lonicera involucrata var. ledebourii Joseph P. Tracy 1943-3-21 17413 Humboldt Alton, along Van Duzan River. 30 Comment
  UC534996  Lotus aboriginus H. E. Parks Jul 1932 Humboldt Bishop Pine Lodge Trinidad 60 Comment
  HSC98247  Lotus formosissimus D. E. Anderson 1963-5-25 2485 Humboldt 2-3 mi. N of Capetown Comment
  JEPS55451  Lotus formosissimus W. L. Jepson 1902-6-24 1922 Humboldt Eureka to Arcata Comment
  HSC96219  Lotus humistratus M. Lindquist, C. Riley 2005-6-8 5 Humboldt 1.4 mi. S of Hwy. 299 on Titlow Hill Rd. 914 Comment
  SEINET6932536  Lotus micranthus Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt East end of Bald Hills, southeast of Orick. Comment
  UC33555  Lotus nevadensis var. nevadensis Chestnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  RSA20787  Lotus oblongifolius var. nevadensis Carl B. Wolf 1937-8-13 9252 Humboldt North Coast Range 11 mi. E. of Hoopa Valley on New Road towards Trinity Summit. 1524 Comment
  UC1223422  Lotus pinnatus Joseph P. Tracy 1937-7-3 15375 Humboldt opposite Willow Creek; Trinity River Valley Comment
  JEPS55767  Lotus purshianus var. purshianus Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  UC726597  Lotus purshianus var. purshianus A. A. Heller 1923-7-9 Humboldt between Eureka and Fortuna Comment
  HSC97236  Lotus purshianus var. purshianus Thomas W. Nelson, Dick Brummitt & Barbara Ertter 2004-7-4 9281 Humboldt Trinity River bar down stream from mouth of Willow Creek 152 Comment
  SEINET3560061 Image available Lotus stipularis H. E. Parks 1932-7-1 Humboldt Bishop Pine Lodge, Trinidad 61 Comment
  UC495719  Lotus tenuis Mrs. C. M. Wilder 1924-6-1 Humboldt w of Bridgeville (at Kemps Maple Grove Ranch); Van Duzen River 152 Comment
  HSC57056  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-24 9714 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC1196933  Ludwigia palustris Joseph P. Tracy 1931-9-7 9665 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  OBI33908  Lupinus David J. Keil 1983-7-2 17319 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit rd Comment
  CDA18904  Lupinus albifrons var. collinus P. Haggard, Spadoni 2000-5-31 PDR 1170224 Humboldt North Coast Ranges; Along US Forest Service Hwy 1 in the vicinity of Eureka. 0 Comment
  OBI36383  Lupinus arboreus David J. Keil 1983-7-1 17285 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  RSA407033  Lupinus arboreus var. arboreus Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  POM349994  Lupinus benthamii var. benthamii Vera Townsend 1934-3-24 s.n. Humboldt Near Sequoia Comment
  HSC48778  Lupinus bicolor Brad Klipfel 1974-5-11 339 Humboldt SW side of Big Lagoon Comment
  RSA296803  Lupinus bicolor subsp. microphyllus Lincoln Constance 1934-5-26 664 Humboldt S. Ford of eel River, S. end of Dyerville Bridge. 46 Comment
  NY15833  Lupinus constancei T. W. Nelson 1982-7-9 7079 Humboldt Blocksburg quadrangle. Sepentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1767.8 Comment
  HSC57309  Lupinus latifolius Griswold, Butler 1979-7-10 6265 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  SEINET12154564  Lupinus latifolius J. P. Tracy 1941-1 16916 Humboldt Panther Gap on the Bull Crk - Mattole Rd Comment
  HSC99444  Lupinus latifolius var. latifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 94 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA87026  Lupinus luteolus F. W. Peirson 1926-7-13 7057 Humboldt Near Blue Lake, Mad River Comment
  JEPS65388  Lupinus nanus Lincoln Constance 1934-5-29 730 Humboldt Upper Look Prairie South Fork Eel River, Bull Breek Region (Bull Creek Region) 365 Comment
  JEPS61938  Lupinus onustus Joseph T. Gregory 1935-7-24 740 Humboldt open places at Corral Prairie; Trinity Summit, open places at Corral Prairie 1584 Comment
  HSC14930  Lupinus pachylobus H. E. Parks 1930-5-25 871 Humboldt Laribee Valley 762 Comment
  UC419035  Lupinus polyphyllus var. polyphyllus H. E. and S. T. Parks May 1930 737 Humboldt vicinity Alton; vicinity of Alton Comment
  HSC14863  Lupinus rivularis J. L. Baker 1965-4-28 29 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  SEINET10488860  Lupinus rivularis Smith 1948-5-10 Smith 48246 Humboldt Hwy. 101--Red crest, few redwoods, 1 mi s. Comment
  UCD170581  Lupinus rivularis Gordon Leppig 1998-4-7 731 Humboldt Rt. 299. 396 Comment
  UC502994 Image available Lupinus tracyi Joseph P. Tracy 1932-7-15 10598 Humboldt ridges e Corral Prairie; Klamath Mountains; ridges E of Corral Prairie, Trinity Summit, Klamath Mts., Humboldt Co. 1828 Comment
  HSC58111  Luzula comosa G. L. Clifton, Griswold 1979-8-1 12062 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CAS-BOT-BC436736  Luzula comosa var. laxa R. K. Gierisch; D. H. Esplin 1969-7-1 3539 Humboldt Six Rivers area: Grouse Mt. 1584 Comment
  UC1152122  Luzula macrantha Joseph P. Tracy 1928-6-17 8449 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  SEINET11785711  Luzula multiflora H. E. Parks, Tracy, J. P. 1947-1 11643 Humboldt McKay Camp, South Fork Mountain 1676 Comment
  HSC56452  Luzula parviflora Griswold, Butler 1979-7-12 7213 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  SDSU11831  Luzula parviflora W. A. Bemis 1964-5-8 277 Humboldt Freshwater forest, Freshwater. 61 Comment
  HSC35502  Lysichiton americanus J. Burns 1962-4-18 Humboldt Eureka, Togo Rd. Comment
  UC420699  Lythrum hyssopifolia Harley P. Chandler June, 1901 1393 Humboldt North Coast Ranges, Hupa Indian Reservation Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC100440  Madia elegans Carl C. Marshall Jun 1885 97 Humboldt Hills. Comment
  UC581811  Madia elegans Joseph P. Tracy 1934-8-24 13599 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  HSC38094  Madia gracilis Thomas W. Nelson, James Nelson 1976-5-30 2615 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC91908  Madia sativa E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  RSA24302  Mahonia nervosa C. B. Wolf 1941-2-25 9961 Humboldt 9 mi. e. of Orick on rd. to Weitchpec. 610 Comment
  HSC103978  Maianthemum dilatatum Kyle Brown 2015-4-25 38 Humboldt Trinidad, along trail at Trinidad State Beach Park 15 Comment
  UC1134631  Maianthemum dilatatum R. Stahelin 1933-5-17 Humboldt Arcata City Park Eureka Quad., Arcata City Park Comment
  UCR275106  Maianthemum dilatatum Charity A. Hartshorn 2016-5-14 36 Humboldt Arcata Community Forest 244 Comment
  CAS-BOT-BC508517  Maianthemum dilatatum A. A. Heller 1937-6-8 15899 Humboldt Bishop Pine Lodge, 3 miles north of Trinidad Comment
  CAS-BOT-BC508518  Maianthemum dilatatum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC15600  Maianthemum dilatatum Francis Winter 1960-5-6 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  RSA246767  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1965-8-7 35178 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  UCD13245  Maianthemum dilatatum Peter Stekel 1974-6-1 143 Humboldt Patricks Point State Park, Agate Beach by U.S. hwy 101. Elev. 10 ft. 3 Comment
  HSC15641  Maianthemum racemosum subsp. amplexicaule Greg Bos 1965-5-15 281 Humboldt 4 mi. W of Berry Summit along Hwy. 299 671 Comment
  HSC58003  Maianthemum racemosum subsp. amplexicaule G. L. Clifton, Griswold 1979-7-31 11788 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC76425  Maianthemum racemosum subsp. amplexicaule Teresa Prendusi 1981-7-9 246 Humboldt Near Slate Creek Butte 1122 Comment
  HSC101981  Maianthemum stellatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 878 Humboldt Patterson Meadows 1566 Comment
  SEINET3992479  Maianthemum stellatum Unknown 1932-7-12 10455 Humboldt Near Corral Prairie; Trinity Summit 1585 Comment
  CAS-BOT-BC512773  Maianthemum stellatum D. Baxter; S. Boren; C. Williams 1994-5-6 47 Humboldt West side of Titlow Road 0.35 miles south of Highway 299 853 Comment
  HSC98156  Maianthemum stellatum W. D. Stevens 1964-5-16 9 Humboldt 1.0 mi. N of Kneeland School Comment
  HSC100442  Malacothrix obtusa Carl C. Marshall Jun 1887 458 Humboldt Near Harris. Comment
  UC154233  Malus fusca J. P. Tracy 1901-6-23 1173 Humboldt immediate vicinity Eureka 0 Comment
  POM87677  Marah oregana L. R. Abrams, R. Bacigalupi 1922-6-25 8283 Humboldt Big Lagoon, south of Orick. Comment
  RSA79372  Marah oregana E. K. Balls, L. W. Lenz 1952-5-12 17199 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  UC1198477  Marah oregana Joseph P. Tracy 1940-5-17 16548 Humboldt McClellan Mt. 762 Comment
  JEPS65521  Medicago lupulina Lincoln Constance 1934-5-26 671 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end) 45 Comment
  HSC47496  Medicago polymorpha Sheila Logan 1978-4-9 20 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  UC552700  Melica californica Joseph P. Tracy 1935-5-25 13888 Humboldt Dobbyn Creek; Northern Coast Ranges 152 Comment
  UC573657  Melica geyeri H. S. Yates 1936-6-17 5693 Humboldt lower nw slope Buck Mtn. 792 Comment
  CAS-BOT-BC281327  Melica harfordii Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  CAS-BOT-BC281328  Melica harfordii Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain Trail 1524 Comment
  UCD87536  Melica harfordii A. H. Murphy 1947-6-17 s.n. Humboldt 1 mile south of Blocksburg. Comment
  HSC10366  Melica subulata E. W. Styskel 1963-5-16 30 Humboldt 3.0 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  SEINET200623 Image available Melica subulata Joseph P. Tracy 1935-7-25 14224 Humboldt Trinity Summit 1585 Comment
  UC34140  Melica subulata Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5405 Humboldt Hubbard's Station; North Coast Ranges Comment
  UC552705  Melica subulata Joseph P. Tracy 1935-7-25 14224 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  HSC10365  Melica subulata D. C. Juve 1964-5-16 53 Humboldt Rousseau Ranch near Kneeland. Comment
  UC1222473  Melilotus officinalis Joseph P. Tracy 1949-7-7 18337 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC14252  Mentha canadensis H. E. Parks, S. T. Parks 1930-9-14 728 Humboldt Big Lagoon Comment
  UC535756  Mentha canadensis Eleanor Armstrong 1934-7-18 1127 Humboldt Richardson Grove; Sandbar 121 Comment
  UCD125052  Mentha canadensis Malcolm A. Nobs; S. Galen Smith 1949-8-9 1241 Humboldt on south side of the town of Blue Lake. Comment
  HSC12565  Mentha pulegium D. La Conte 1970-7-7 1 Humboldt Comment
  HSC12347  Mentha pulegium Steve Dorei 1970-10-31 135 Humboldt Scotia Bluffs, north of railroad tracks Comment
  UC630630  Mentzelia dispersa Joseph P. Tracy 1939-8-16 16421 Humboldt Grouse Mountain 1524 Comment
  HSC25986  Mentzelia laevicaulis Thomas W. Nelson 1970-9-3 221 Humboldt Mad River. Comment
  UC1197586  Menziesia ferruginea Joseph P. Tracy 1926-5-22 7506 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC164898  Micropus californicus var. californicus Joseph P. Tracy 1908-6-9 2653 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC322686  Microseris laciniata M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  JEPS13225  Microseris laciniata subsp. laciniata Lincoln Constance 1934-5-24 624 Humboldt s slope lower Look Prairie; South Fork Eel River, Bull Creek region, s slope of Lower Lo 121 Comment
  HSC6099  Microseris nutans J. P. Tracy 1930-7-16 8900 Humboldt Near McKay Camp. 1677 Comment
  HSC73727  Microseris nutans M. A. Baker 1980-7-22 3062 Humboldt Near Salmon Mtn. 1820 Comment
  CAS-BOT-BC349239  Microseris nutans E. B. Babcock 1932-6-25 405 Humboldt Humboldt-Trinity Counties, South Fork Mt. north slope 1828 Comment
  HSC32274  Microseris nutans D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5628 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC70251  Microsteris gracilis M. A. Baker 1980-6-8 1917 Humboldt Near Buck Flat. 1554 Comment
  HSC12373  Mimulus alsinoides C. E. Fellows 1970-5-1 267 Humboldt 11 mi. W of Willow Creek, S side of Hwy. 299 Comment
  HSC69814  Mimulus alsinoides Thomas W. Nelson, Jane P. Nelson 1978-5-25 3801 Humboldt Above E Fork of Willow Creek just upstream from S.R. 299 bridge 457 Comment
  JEPS1744  Mimulus alsinoides Clyde Ritchie Bell 1951-4-21 1045 Humboldt 7 mi s Hoopa Comment
  HSC20692  Mimulus aurantiacus var. aurantiacus D. E. Anderson 1961-8-25 1755 Humboldt 1.5 miles S of Trinidad. overlooking beach Comment
  UC677720  Mimulus aurantiacus var. aurantiacus C. C. and S. K. Harris 1936-6-9 681 Humboldt above Carlotta 60 Comment
  HSC99126  Mimulus breweri Cara Witte, Michael Scott 2007-6-22 341 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  UC147910  Mimulus breweri Joseph P. Tracy 1908-6 2844 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  UC1196775  Mimulus cardinalis Joseph P. Tracy 1908-6 2928 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SBBG15433  Mimulus dentatus H. and M. Dearing 1939-5-27 3453 Humboldt Russ Grove Redwoods Comment
  HSC100670  Mimulus glutinosus Carl C. Marshall Apr 1886 56 Humboldt Hills near coast. Comment
  HSC20726  Mimulus guttatus H. D. Sumner 1959-7-13 Humboldt Dirt road to Hoopa 305 Comment
  HSC48658  Mimulus guttatus Mark Flippo 1978-5-22 76 Humboldt Big Hill Rd. Comment
  UC147915  Mimulus inodorus J. P. Tracy 1900-8-5 912 Humboldt immediate vicinity Eureka 0 Comment
  UCSB15766  Mimulus moschatus Breedlove, Dennis 1961-7-4 Humboldt Highway 299; 17.5 miles east of Highway 101 609 Comment
  RSA80459  Mimulus moschatus var. sessilifolius F. W. Peirson 1926-7-12 7038 Humboldt Orick. Comment
  HSC40029  Mimulus nanus var. nanus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2877 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC72438  Mimulus pilosus J. P. Smith 1971-10-9 5010 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC55643  Mimulus pulsiferae Overton, Butler 1979-7-24 9711 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC55694  Mimulus pulsiferae Overton, Butler 1979-7-26 10015 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC1196786  Mimulus pulsiferae Joseph P. Tracy 1908-6 2698 Humboldt opposite Buck Mountain (along stream); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC388626  Minuartia douglasii Joseph P. Tracy 1935-6-23 13972 Humboldt French Camp Ridge 1066 Comment
  HSC4054  Minuartia douglasii Lincoln Constance 1934-5-29 732 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  HSC71675  Minuartia douglasii M. A. Baker 1980-6-26 2392 Humboldt Near Sims Creek 610 Comment
  HSC78656  Minuartia nuttallii subsp. gregaria D. K. Imper 1982-6-29 1478 Humboldt Near Lassics Lookout 1584 Comment
  CAS-BOT-BC181090  Minuartia nuttallii var. gregaria Joseph P. Tracy 1935-7-30 14353 Humboldt Salmon Summit 1767 Comment
  SDSU9556  Mitella caulescens D. F. Howe 1963-8-7 3706 Humboldt 23 miles W of west entrance to Six Rivers National Forest on #299. 213 Comment
  CAS-BOT-BC433033  Mitella ovalis J. P. Tracy 1901-6-10 1133 Humboldt Immediate vicinity of Eureka 152 Comment
  JEPS49683  Mitella ovalis Jos. P. Tracy 1901-12-13 818 Humboldt Eureka Comment
  HSC36497  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1894 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  JEPS51151  Moehringia macrophylla Lincoln Constance 1934-6-19 908 Humboldt Grasshopper Peak, near summit; Bull Creek Region, South Fork Eel River 914 Comment
  HSC41256  Monardella odoratissima Brad Klipfel 1974-6-25 446 Humboldt Horse Mtn. Comment
  HSC102521  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1508 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC58020  Monardella odoratissima subsp. pallida G. L. Clifton 1979-7-31 11822 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SEINET892716  Monardella odoratissima subsp. pallida Carl B. Wolf 1934-1 5848 Humboldt Along Eel River & Redwood Highway, 1.2 miles south of F.K. Lane Grove 60 Comment
  CAS-BOT-BC220516  Monardella villosa Marcus E. Jones 1931-7-16 28821 Humboldt Junction, East of Arcata Comment
  UC198876  Monotropa hypopitys Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  RSA52284  Monotropa uniflora D. Meadows 1950-7-21 a.n. Humboldt Near Bear Trap on Irvine Trail, Prairie Creek State Park. Comment
  CAS-BOT-BC445160  Montia parvifolia Henry M. Pollard 1947-8-9 s.n. Humboldt South river road, south of Orleans Comment
  POM203679  Montia parvifolia I. L. Wiggins 1932-7-7 5879 Humboldt Sand dunes near Samoa Comment
  HSC90390  Morella californica Jean Hanson 1980-4-12 49 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  HSC3746  Myosotis discolor D. E. Anderson 1965-5-22 3720 Humboldt Road to Blocksburg, 3 mi. S of Bridgeville. Comment
  SDSU19202  Myosotis latifolia Michael G. Simpson, Michael Mayer 2008-5-28 3016 Humboldt Upland above College Cove, Trinidad State Beach, along path to beach, down from south parking lot. 61 Comment
  HSC3730  Myosotis sylvatica William J. Ferlatte 1963-5-17 48 Humboldt Near 11th and B Sts., Arcata Comment
  CAS-BOT-BC101670  Myrica californica Ira L. Wiggins 1930-7-11 4682 Humboldt near Samoa Comment
  SEINET516272  Myrica californica Vernon H. Oswald 1998-4-16 8913 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  HSC13475  Myriophyllum sibiricum R. L. Jarvis 1962-4-29 24 Humboldt Clam Beach Lagoons, .5 mi. S of Little River on Hwy. 101 0 Comment
  HSC15605  Narcissus X incomparabilis J. L. Baker 1965-3-27 22 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  UC181244  Nassella pulchra Joseph P. Tracy 1914-5-14 4448 Humboldt Fort Seward Northern Coast Ranges (slopes) 121 Comment
  CAS-BOT-BC60348  Nasturtium officinale M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles north of Garberville. Comment
  CAS-BOT-BC60344  Nasturtium officinale Kenneth Clark 1980-5-10 650 Humboldt Shelter Cove. Point Delgada. On Western beach coastal bluffs. 6 Comment
  UC908512  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC162572  Navarretia atractyloides Joseph P. Tracy 1911-7-4 3302 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, Trinity River, Willow Creek 182 Comment
  HSC75466  Navarretia capillaris J. O. Sawyer 1980-7-18 3596 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC908388  Navarretia divaricata Joseph P. Tracy 1932-7-11 10395 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC100597  Navarretia intertexta Carl C. Marshall Jun 1887 455 Humboldt Jewett Creek hills. Comment
  UC52442  Navarretia squarrosa J. P. Tracy 1903-8-9 1932 Humboldt immediate vicinity Eureka 0 Comment
  UC133642  Navarretia tagetina Joseph P. Tracy 1908-6 2818 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC198645  Navarretia tagetina Joseph P. Tracy 1916-6-19 4709 Humboldt Bosworths, on Laribee Creek Northern Coast Ranges, Laribee Creek 457 Comment
  POM64955  Navarretia viscidula Joseph P. Tracy 1916-6-20 4732 Humboldt Alder Point, Northern Coast Ranges 152 Comment
  SEINET200628  Navarretia viscidula Joseph P. Tracy 1918-7-5 5036 Humboldt White Thorn Valley 305 Comment
  UC1198518  Navarretia viscidula Joseph P. Tracy 1942-7-18 17287 Humboldt Garberville 152 Comment
  SEINET3156479  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  UC24188  Nemophila heterophylla Mary H. Manning 1900-1 Humboldt Hupa Comment
  UC163963  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt near Hydesville; near Hydesville 60 Comment
  CAS-BOT-BC219407  Nemophila parviflora M. S. Jussel 1931-5-2 92 Humboldt Sylvandale, 8 miles N. of Garberville Comment
  CAS-BOT-BC219408  Nemophila parviflora Alice Eastwood 1943-6-10 18979 Humboldt Landsdale Grove, Redwood Highway Comment
  CAS-BOT-BC219411  Nemophila parviflora Greg de Nevers 2001-4-17 12248 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  UC198640  Nemophila pedunculata Joseph P. Tracy 1917-5-27 4784 Humboldt Eureka Northern Coast Ranges, at Eureka 0 Comment
  CAS-BOT-BC60545  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie - summit rock pile. 853 Comment
  HSC34230  Notholithocarpus densiflorus var. densiflorus Linda M. Barker 1974-5-11 176 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  JEPS122  Nuttallanthus texanus Lincoln Constance 1934-6-22 921 Humboldt South Fork Eel River, Summit Grasshopper Peak, down Canoe Creek, road to Redwood Hwy, thence n to Dyerville Canoe Creek; Bull Creek Region, South Fork Eel River, Grasshopper Peak, C Comment
  CAS-BOT-BC142293  Oemleria cerasiformis Doris K. Kildale 1927-5-13 3140 Humboldt Redwood Creek at Berry's 289 Comment
  HSC18704  Oemleria cerasiformis D. E. Anderson 1962-2-25 1925 Humboldt 1 mi. W of Ferndale along Centerville Beach Rd. Comment
  RSA183592  Oemleria cerasiformis D. E. Anderson 1965-4-24 3536 Humboldt Along Titlow Hill Road, about 2 miles from its junction with Highway 299. Comment
  UC1222314  Oemleria cerasiformis Joseph P. Tracy 1951-6-21 19514 Humboldt opposite Willow Creek; Trinity Valley Comment
  UC666832  Oemleria cerasiformis Joseph P. Tracy 1937-6-20 15356 Humboldt 10 mi up stream mouth of Bear River; Bear River 152 Comment
  SEINET11915945  Oemleria cerasiformis J. P. Tracy 1950-1 18618 Humboldt 2 mi W of Dinsmore's, Buck Mountain, lower foothills of its NW slope 762 Comment
  HSC21577  Oenanthe sarmentosa Paul Shields 1965-6-16 Humboldt HSC campus Comment
  HSC97444  Oenanthe sarmentosa Ivy Watson 2008-9-28 27 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  RSA46471  Oenanthe sarmentosa Doris K. Kildale 1926-7-16 2380 Humboldt Big Lagoon Comment
  CDA38487  Oenanthe sarmentosa Tario 1932-9-27 s.n. Humboldt Arcata. 0 Comment
  RSA246755  Oenanthe sarmentosa R. F. Thorne, P. Everett 1965-8-9 35318 Humboldt Clam Beach County Park: along highway. 3 Comment
  UCD127756  Oenanthe sarmentosa Collector Unknown 1932-7-1 s.n. Humboldt California Seed Lab. Comment
  UC1196945  Oenothera wolfii Joseph P. Tracy 1934-8-24 13598 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC37886  Olsynium douglasii var. douglasii Thomas W. Nelson 1976-4-3 2288 Humboldt On large rock at head of Goat Rock slide, N side of Van Duzen River 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
  UC1197575  Orthilia secunda Joseph P. Tracy 1935-7-23 14156 Humboldt Trinity Summit, Lower end of Brett Hole 1584 Comment
  SEINET8733538 Image available Orthocarpus faucibarbatus S. K. Harris 1936-1 683 Humboldt near railroad station, Eureka 3 Comment
  HSC56086  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11774 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA407950  Orthocarpus purpurascens J. P. Smith, Thomas W. Nelson 1977-6-30 9210 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC102550  Osmorhiza berteroi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1538 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC74434  Osmorhiza berteroi Gail Newton 1980-8-10 2064 Humboldt Near Blake Mtn. 1707 Comment
  HSC96211  Osmorhiza berteroi April A. Allard, Gregory D. O'Connell 2005-6-8 6 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 1005 Comment
  HSC45396  Osmorhiza berteroi Thomas W. Nelson, Jane P. Nelson 1977-7-4 3596 Humboldt Beside pond above Alder Springs 1585 Comment
  HSC79449  Osmorhiza berteroi Kenneth Clark 1980-4-18 576 Humboldt On access trail to Dead Man's Gulch 52 Comment
  RSA254742  Osmorhiza purpurea Thomas W. Nelson, James Nelson 1973-5-28 945 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1197418  Oxalis albicans subsp. pilosa Joseph P. Tracy 1927-4-2 7872 Humboldt Philipsville North Coast Ranges (South Fork of Eel River) 121 Comment
  HSC16721  Oxalis articulata subsp. rubra N. R. Waite 1965-5-19 36 Humboldt W edge of Humboldt State University campus. Comment
  HSC16697  Oxalis corniculata T. W. Beck 1963-4-27 44 Humboldt Camp Bauer, Korbel Comment
  HSC49078  Oxalis oregana J. O. Sawyer 1977-4-23 2843 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC83316  Oxalis oregana R. W. Becking 1987-5-2 Humboldt Humboldt State University campus, adjacent to back steps on S side of Natural Resources building Comment
  UCD110982  Oxalis oregana R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  HSC55191  Oxalis trilliifolia G. L. Clifton, Griswold 1979-8-2 12264 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC725500  Oxalis trilliifolia A. A. Heller 1923-7-10 13787 Humboldt Humboldt Camp between Scotia and Pepperwood Comment
  UC129573  Packera bolanderi var. bolanderi Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5453 Humboldt near Elk Prairie Comment
  UC526841  Panicum acuminatum var. acuminatum Joseph P. Tracy 1927-8-7 8313 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC253709  Panicum capillare Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  HSC10502  Panicum oligosanthes var. scribnerianum J. P. Tracy 1932-6-14 10147 Humboldt Trinity River Valley, at Willow Creek. Comment
  RSA624797  Parapholis strigosa Gordon Leppig 1998-6-6 801 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, Butchers Slough about 50m w of Interpretive Center 1 Comment
  UC1478544  Parentucellia viscosa Robert F. Thorne 1974-7-29 45075 Humboldt Samoa Dunes Comment
  UCR30860  Parentucellia viscosa A. C. Sanders 1981-8-6 2307 Humboldt Russ Park, City of Ferndale 46 Comment
  HSC74501  Parnassia palustris Gail Newton 1980-8-10 2048 Humboldt Near Blake Mtn. 1707 Comment
  CAS-BOT-BC259727  Paspalum distichum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC259728  Paspalum distichum Joseph P. Tracy 1934-7-30 13498 Humboldt Dry Lagoon, on coast near Stone Lagoon 3 Comment
  HSC98075  Paxistima myrsinites Cara Witte 2007-7-12 525 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  HSC99033  Paxistima myrsinites Cara Witte 2008-7-1 780 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  UC902242  Pedicularis racemosa Joseph P. Tracy 1948-9-5 18170 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1173740  Pellaea brachyptera Joseph P. Tracy 1939-8-16 16423 Humboldt Grouse Mt 1524 Comment
  UCD137663  Pellaea brachyptera Freed W. Hoffman 1949-7-15 3007 Humboldt Mount Lassic area a little south of Blue Ridge; Mule Slide. Comment
  SEINET7719718  Penstemon corymbosus Chesnut, Drew 1888-7-10 Humboldt Jarnigan's Comment
  HSC70524  Penstemon deustus Gail Newton 1980-7-15 1587 Humboldt Near Sims Mtn. 1311 Comment
  HSC73566  Penstemon laetus subsp. sagittatus Gail Newton 1980-7-14 1503 Humboldt Near Last Chance Ridge 1219 Comment
  HSC96936  Penstemon laetus subsp. sagittatus Whitney Meier, Elizabeth Kimbrough 2007-6-11 5 Humboldt Cold Springs Camp, 14.1 mi. S of Hwy. 299 on FS Rd. NF1 Comment
  UC577402  Penstemon laetus var. sagittatus Joseph P. Tracy 1933-7-25 12827 Humboldt Horse Mountain 1432 Comment
  RSA407900  Penstemon laetus var. sagittatus H. M. Pollard 1948-7-19 s.n. Humboldt River road between Orleans and Van Fleet Ranch. Comment
  SEINET3360831 Image available Penstemon newberryi subsp. berryi Joseph P. Tracy 16-19 July 1930 8953 Humboldt South Fork Mountain; along summit near Blake lookout. 1707 Comment
  UC1565792  Penstemon newberryi var. berryi R. Spellenberg 1990-7-9 10229 Humboldt 6 air mi WNW of Hyampom (South Fork Mountain, USFS Rd 1.5 mi N of Blake Mt.; 36 mi S of Hwy 299 and Berry Summit); Humboldt Co., extreme E edge 1676 Comment
  HSC56044  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-7-31 11619 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 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
  UC562621  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1936-10-24 15204 Humboldt 2 mi s Fields Landing; Northern Coast Region, around Humboldt Bay 9 Comment
  HSC61046  Perideridia gairdneri subsp. gairdneri T. Jimerson, J. Pageau 1979-8-10 745 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC75289  Perideridia kelloggii J. O. Sawyer, M. A. Ericksen 1980-8-18 4061 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  HSC76403  Perideridia kelloggii M. A. Ericksen 1981-8-21 1085 Humboldt Near Dan East Cabin 1609 Comment
  UC1103410  Perideridia kelloggii Joseph P. Tracy 1924-5-4 6665 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  HSC102170  Perideridia oregana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1082 Humboldt Patterson Meadows 1555 Comment
  UCD99742  Persicaria maculosa James Payne Smith Jr.; Advanced Plant Taxonomy Class 1971-10-6 4950 Humboldt End of Murray Road in McKinleyville. Comment
  HSC45468  Persicaria wallichii Thomas W. Nelson, M. Alcasas 1978-10-10 4555 Humboldt Off Hwy. 101 right-of-way N of HSU exit Comment
  JEPS1438  Phacelia bolanderi W. L. Jepson 1932-8-9 16536 Humboldt Bull Creek 106 Comment
  HSC76575  Phacelia hastata Teresa Prendusi 1981-7-24 485 Humboldt Near Whiteys Peak 1585 Comment
  JEPS1161  Phacelia mutabilis Lincoln Constance 1934-6-19 909 Humboldt Grasshopper Peak South Fork Eel River, Bull Creek region (near summit) 914 Comment
  HSC41590  Phacelia mutabilis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3615 Humboldt Alder Springs 1524 Comment
  UC671690  Phacelia nemoralis subsp. oregonensis Lincoln Constance, Alan A. Beetle 1940-5-16 2609 Humboldt 12 mi s Eureka (summit of bluff); Table Bluff 30 Comment
  CAS-BOT-BC76564  Philadelphus lewisii Doris K. Kildale 1928-6-9 5057 Humboldt Chalk Mountain Comment
  CAS-BOT-BC76568  Philadelphus lewisii Doris K. Kildale 1926-6-27 2203 Humboldt On road to Larabee Valley from McLellan Mt. 792 Comment
  HSC20267  Philadelphus lewisii R. E. Thill 1965-4-22 17 Humboldt 1.5 mi. E of Hwy. 101 on N Bank Rd. Comment
  UC11456  Philadelphus lewisii C. C. Marshall 1888-1 Humboldt Comment
  UC1103788  Phleum alpinum Joseph P. Tracy 1917-9-3 4853 Humboldt lower slopes Grouse Mountain (Jones Ranch); Northern Coast Ranges, lower slopes Grouse Mountain 914 Comment
  UC526668  Phleum alpinum Joseph P. Tracy 1926-7-5 7733 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC250884  Phleum pratense Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  HSC100894  Phlox adsurgens Carl C. Marshall Jun 1886 324 Humboldt Trail E of Hoopa. Comment
  RSA183512  Phlox adsurgens D. E. Anderson 1965-5-15 3693 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  UC1198559  Phlox gracilis Joseph P. Tracy 1932-4-24 9824 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  POM161067  Phyllospadix torreyi H. E. Parks 1924-8-7 s.n. Humboldt Trinidad. Comment
  UC527820  Picea sitchensis Ira L. Wiggins 1932-6-28 5870 Humboldt hillside just n Little River Comment
  UC615028  Picea sitchensis Beryl O. Schreiber 1934-6-5 1130 Humboldt 5 mi above Fortuna (along highway) Comment
  UCSB24019  Picea sitchensis Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  CAS-BOT-BC136468  Piperia candida Harley P. Chandler 1901-6-1 1385 Humboldt Field redacted by CAS, contact the data manager for more information 304 Comment
  HSC104330  Piperia candida James Regan, Humboldt Redwood Co., LLC 2010-7-8 26 Humboldt Top of Thompson Creek, Larabee area 610 Comment
  UC1225849  Piperia elongata Joseph P. Tracy 1948-7-11 18073 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA273298  Piperia transversa J. D. Ackerman 1974-8-13 404 Humboldt Ca. 2 miles north of Manila, between sand dunes and Mad River Slough Comment
  HSC104332  Piperia transversa James Regan, Humboldt Redwood Co., LLC 2008-7-18 28 Humboldt Happy Valley, Bear River 579 Comment
  UC1196412  Piperia unalascensis Joseph P. Tracy 1926-5-30 7521 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  HSC65967  Pityopus californicus M. A. Baker 1980-7-20 3043 Humboldt Near Bell Swamps 11 Comment
  CAS-BOT-BC228214  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  UC1239619  Plagiobothrys nothofulvus Joseph P. Tracy 1933-5-20 12243 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges 30 Comment
  UC526823  Plagiobothrys reticulatus Joseph P. Tracy 1923-6-20 6340 Humboldt Miranda North Coast Ranges, Miranda 91 Comment
  JEPS14280  Plantago elongata Joseph P. Tracy with Dr. F. W. Pennell 1940-7-6 16660 Humboldt w of Table Bluff 6 Comment
  UCD124424  Plantago erecta Linda M. Barker 1976-4-30 1397 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC16844  Plantago lanceolata R. I. Bonn 1965-5-9 38 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC73154  Plantago lanceolata M. A. Baker 1980-5-18 1301 Humboldt Near Black Mtn. 1006 Comment
  UC1125641  Plantago lanceolata H. L. Person 1932-7-16 Humboldt n of Trinidad (highway); Rock Point Quad. Comment
Read comments
Aug 3 2007
  RSA412592  Plantago purshii var. oblonga H. M. Pollard 1947-8-23 s.n. Humboldt Air Landing Field, west of Orleans. Comment
  HSC16832  Plantago subnuda Norman H. Moe 1962-5-17 Humboldt Lanphere's Place, next to Mad River Slough Comment
  HSC55027  Platanthera dilatata Overton, Butler 1979-7-31 11451 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC57692  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-7-25 10917 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  JEPS79897  Platanthera leucostachys Joseph P. Tracy 1933-7-25 12842 Humboldt in bog Grouse Mountain 1524 Comment
  HSC98719  Platanthera sparsiflora Cara Witte 2008-7-1 792 Humboldt Near Grouse Mountain spring. Along Forest Service Road 5N04. 1/4 mile east of intersection with 4N70. 1583 Comment
  HSC103985  Platystemon californicus E. R. Fyer 2015-3-19 15 Humboldt Samoa; along side of New Navy Base Rd 8 Comment
  UC1196295  Platystemon californicus Joseph P. Tracy 1935-5-25 13871 Humboldt Fort Seward 106 Comment
  HSC16794  Platystemon californicus C. A. Bontrager 1966-4-24 46 Humboldt 1834 Allard Ave., Eureka Comment
  UC1239606  Plectritis congesta Joseph P. Tracy 1923-5-20 6216 Humboldt Kneeland Prairie 762 Comment
  HSC65859  Pleuricospora fimbriolata Gail Newton 1980-6-28 674 Humboldt Near Mad River Butte. 1536 Comment
  UC1462984  Pleuricospora fimbriolata Joseph P. Tracy 1916-6-25 4740 A Humboldt between Little River and Redwood CreekNorthern Coast Ranges Redwood Creek (Northern Coast Ranges); Northern Coast Ranges 304 Comment
  UC1103803  Pleuropogon refractus Joseph P. Tracy 1926-5-22 7514 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC1152688  Pleuropogon refractus D. E. Anderson 1963-3-24 2404 b Humboldt Old logging road on s side of Jacoby Creek Comment
  UC184171  Pleuropogon refractus Joseph P. Tracy 1901-6-10 1131 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC10626  Poa annua William J. Ferlatte 1963-5-8 39 Humboldt Near 11th and B Sts., Arcata. Comment
  CAS-BOT-BC254897  Poa bulbosa Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  HSC10672  Poa compressa J. P. Tracy 1925-7-5 7182 Humboldt High Prairie on Bald Mtn. 1067 Comment
  HSC10688  Poa confinis D. B. Bader 1963-4-15 23 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  UCD91134  Poa howellii Al Murphy 1949-6-8 s.n. Humboldt W.O. Perry 1/2 mile below house on ranch road. Comment
  RSA603828  Poa macrantha D. D. Keck, Jens Clausen 1935-6-16 3382 Humboldt Mouth of Little River. Comment
  UCD91548  Poa macrantha Joseph P. Tracy 1947-7-3 17766 Humboldt at mouth of Little River. 6 Comment
  POM204850  Poa secunda W. C. Blasdale, Jos Burtt Davy 1899-6-19 5658 Humboldt Hoopa Summit Comment
  HSC70687  Poa secunda subsp. secunda Gail Newton 1980-7-13 1572 Humboldt Near Sims Mountain. 1311 Comment
  UC525667  Poa secunda subsp. secunda Joseph P. Tracy 1927-5-15 8051 Humboldt w Hoopa Valley (Supply Creek); North Coast Ranges 304 Comment
  UCD90884  Poa secunda subsp. secunda J. B. Davy; W. C. Blasdale 1899-6-19 5660 Humboldt Hoopa Summit. Comment
  CAS-BOT-BC244206  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad. Bluffs facing ocean Comment
  POM126102  Poa unilateralis Joseph P. Tracy 1910-4-24 3124 Humboldt Sand dunes of ocean beach at Humboldt Bay Comment
  HSC17474  Polygonum aviculare C. B. Wolf 1927-8-29 1208 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  JEPS50516  Polygonum convolvulus Milo S. Baker 1923-8-5 176 Humboldt Stone Lagoon; in potato field Comment
  UC672969  Polygonum davisiae Joseph P. Tracy Jul 16 1930-Jul 19 1930 9057 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC672936  Polygonum douglasii Joseph P. Tracy 1936-8-2 15069 Humboldt French Camp Ridge 1066 Comment
  UC672982  Polygonum hydropiper Joseph P. Tracy 1927-10-8 8386 Humboldt Boyes Ranch Prairie Creek 91 Comment
  UC1101153  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-9 1234 Humboldt Town of Blue Lake; pond on s side Comment
  HSC54878  Polygonum minimum G. L. Clifton, Griswold 1979-7-25 10873 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CHSC23310  Polygonum paronychia Robert F. Thorne; P. Everett 1965-8-5 35163 Humboldt Samoa Dunes. 3 Comment
  CHSC68789  Polygonum paronychia Vernon Oswald 1997-6-5 8541 Humboldt North Spit of Humboldt Bay 3.7 mi south of Hwy.255, Orvil Wilson Memorial Off-road Vehicle Park opposite the junction of New Navy Base Rd. and Lincoln Ave. 6 Comment
  HSC17512  Polygonum paronychia J. W. Johnson 1961-8-17 1041 Humboldt Dune fields of W.M. Lanphere Farm, Samoa Peninsula Comment
  HSC59461  Polygonum paronychia M. A. Ericksen 1979-5-18 296 Humboldt Samoa Dunes, .5 mi. S of Simpson Timber Company plant entrance Comment
  UCR122370  Polygonum paronychia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7018 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  UC1198089  Polygonum parryi Joseph P. Tracy 1929-8-18 8658 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 762 Comment
  UC672978  Polygonum phytolaccifolium Joseph P. Tracy 1936-7-7 16035 Humboldt Grouse Mountain 1524 Comment
  CDA37209  Polygonum polystachyum B. Villegas, Bruce Bryan 2009-10-6 s.n. Humboldt Eureka; 2nd Street at P Street. Comment
  CAS-BOT-BC421003  Polygonum spergulariiforme Doris K. Kildale 1927-7-17 3757 Humboldt Bug Creek 792 Comment
  HSC53800  Polygonum spergulariiforme Griswold, Butler 1979-7-10 6221 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UC812497  Polypodium glycyrrhiza Eliz. Parsons Hawver June 1915 Humboldt Carlotta Comment
  HSC1137  Polypodium glycyrrhiza J. W. Johnson 1962-4-2 1421 Humboldt Lanphere lane, near the swamp, Samoa Peninsula, Arcata Comment
  SEINET10530419  Polypodium glycyrrhiza Mary Susan Taylor 1982-10-24 Taylor 5184 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  CAS-BOT-BC72081  Polypodium scouleri Ira L. Wiggins 1930-7-11 4686 Humboldt near Samoa Comment
  JEPS93138  Polypodium scouleri M. Wetherwax 1992-5-20 2434 Humboldt Patrick's Point State Park. Coastal bluff S side of Wedding Rock 30 Comment
  CAS-BOT-BC72083  Polypodium scouleri Ira L. Wiggins 1957-6-20 14133 Humboldt East side of highway, Trinidad Comment
  HSC1121  Polypodium scouleri J. R. Good 1964-5-13 48 Humboldt N 0.25 mi. from end of Lanpheres Rd. on sand dune Comment
  UC1472770  Polypodium scouleri Mrs. Carlotta C. Hall 1924-8-10 233 Humboldt 10 mi above Carlotta (along Van Duzen River, on rd. to Redding) Comment
  CAS-BOT-BC232957  Polypogon australis Peter Rubtzoff 1968-9-4 5959 Humboldt Goulds Bar, S Fork Eel River SE of Weott Comment
  CAS-BOT-BC232958  Polypogon australis Mrs. H. C. Cantelow 1961-5-29 s.n. Humboldt 5.7 km Eel River, Hartsook Comment
  CAS-BOT-BC233075  Polypogon interruptus Henry M. Pollard 1946-8-10 s.n. Humboldt Roadside, S of Klamath River and E of Perch Creek, Orleans region Comment
  RSA10062  Polypogon interruptus Joseph P. Tracy 1930-6-29 8819 Humboldt Buck Mountain, lower foothills of its northwest slope 762 Comment
  HSC79387  Polypogon monspeliensis Kenneth Clark 1979-7-1 459 Humboldt Shelter Cove. One beach at base of cliffs; first reef of Point Delgada headlands. 5 Comment
  UC39747  Polypogon monspeliensis Harley P. Chandler June 1901 1532 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  UC906712  Polystichum Harold E. Parks and Joseph P. Tracy 1942-5-16 11547 Humboldt half way between Miranda and Garberville 152 Comment
  HSC65985  Polystichum imbricans Gail Newton 1980-7-23 1714 Humboldt Near Packsaddle Ridge 1463 Comment
  UC519314  Polystichum imbricans subsp. imbricans Joseph P. Tracy 1933-6-13 12596 Humboldt near summit on rd w from Hoopa to Bair's Hoopa Mt.; Northern Coast Ranges 1066 Comment
  HSC36639  Polystichum imbricans subsp. imbricans Thomas W. Nelson, Jane Nelson, James Nelson 1975-6-14 1903 Humboldt Beside branch off Rd. 2SO8 to Pine Mtn. Comment
  UC906748  Polystichum imbricans subsp. imbricans Joseph P. Tracy 1947-7-9 17842 Humboldt Horse Mt. 1432 Comment
  HSC79150  Polystichum munitum C. J. Thomas 1984-9-25 118 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  UC1440061  Polystichum munitum Danin & H. G. Baker 1960-8-14 626 Humboldt n slope Eel Rock Rd. Eel Rock Rd. Comment
  UC249539  Populus trichocarpa Joseph P. Tracy 1922-10-8 6125 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  UC249560  Populus trichocarpa Joseph P. Tracy 1922-10-8 6123 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  CAS-BOT-BC454089  Potamogeton pusillus subsp. tenuissimus William Anderson 1964-8-4 s.n. Humboldt Shore Acres. McKinleyville Comment
  RSA246705  Potentilla anserina var. grandis Robert F. Thorne, Percy C. Everett 1965-8-7 35228 Humboldt Samoa Peninsula. 3 Comment
  HSC59611  Potentilla gracilis var. fastigiata J. P. Smith, Steve Selva 1970-6-30 4102 Humboldt Comment
  HSC34911  Prosartes hookeri Thomas W. Nelson, James Nelson 1975-5-24 1854 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC61166  Prosartes hookeri T. Jimerson, J. Pageau 1979-7-31 701 Humboldt Near Whiting Ridge. Close to the town of Hyampom, CA. 1204 Comment
  SBBG980  Prosartes hookeri H. and M. Dearing 1933-5-16 254 Humboldt Weott Comment
  HSC103987  Prosartes smithii E. R. Fyer 2015-4-29 31 Humboldt Arcata Community Forest 129 Comment
  CAS-BOT-BC517514  Prosartes smithii Kenneth Clark 1980-3-24 539 Humboldt Upper terrace of Dead Man's Gulch; Shelter Cove 76 Comment
  HSC60293  Prosartes smithii Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  SEINET12050892  Prosartes smithii F. H. Utech 1977-1 77 -370 Humboldt ca 4.5 mi S of Del Norte County line on US 101 enroute to Crescent City Comment
  HSC56433  Prunella vulgaris subsp. lanceolata Griswold, Butler 1979-7-12 7145 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1196731  Prunella vulgaris var. lanceolata Joseph P. Tracy 1930-8-17 9162 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UCD125323  Prunella vulgaris var. lanceolata K. Esau 1934-5-6 s.n. Humboldt Fort Seward. 152 Comment
  CAS-BOT-BC159985  Prunus emarginata L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  UC666844  Prunus emarginata Joseph P. Tracy 1933-6-13 12571 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  UC902151  Prunus emarginata Joseph P. Tracy 1944-5-20 17473 Humboldt Eureka, on 2nd St. between K and L Sts Eureka 9 Comment
  HSC94127  Prunus laurocerasus Gordon Leppig 2000-4-12 1291 Humboldt Arcata: behind Humboldt State University, W of Fern Lake 49 Comment
  HSC40671  Prunus virginiana var. demissa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2930 Humboldt Bench W of Lassic Park (Signal Peak) 1677 Comment
  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
  JEPS34048  Pseudognaphalium californicum Lincoln Constance 1934-6-14 875 Humboldt near Lookout Pt. (w side of Look Prairie); South Fork Eel River, Bull Creek Region, Look Prairie Comment
  HSC35014  Pseudognaphalium stramineum Thomas W. Nelson, James Nelson 1974-9-15 1714 Humboldt W of Fairhaven, Samoa Peninsula Comment
  BLMAR704  Pseudognaphalium stramineum Jennifer Anthony-Wheeler 1994-9-8 704 Humboldt Samoa dunes, growing atop a knoll/dune with I the Samoa Pen. Rare plant area 15 Comment
  HSC5705  Pseudognaphalium stramineum W. D. Stevens 1967-7-22 60 Humboldt Above the dirt road from old Hwy. 101 to the top of the N bank of the Mad River Comment
  HSC41283  Pseudotsuga menziesii var. menziesii Brad Klipfel 1974-7-23 473 Humboldt Horse Mountain, NW from the towers Comment
  HSC46092  Pteridium aquilinum var. pubescens J. P. Smith, Steve Selva 1970-6-14 3855 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  SD42991  Pteridium aquilinum var. pubescens Edith A. Purer 1932-7-30 Humboldt south of Orick Comment
  JEPS79952  Pterostegia drymarioides Joseph P. Tracy 1933-5-20 12226 Humboldt s point of cape; Cape Mendocino 3 Comment
  UCD92959  Puccinellia pumila Joseph P. Tracy 1938-7-15 16073 Humboldt Mouth of Eel River. Comment
  CAS-BOT-BC462872  Pyrola asarifolia J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek Comment
  UC1222157  Pyrola asarifolia Joseph P. Tracy 1951-6-24 19534 Humboldt near intersection of Butter Valley Road with Kneeland Road Comment
  HSC44551  Pyrola crypta Brad Klipfel 1973-7-15 170 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC314638  Pyrola picta Joseph P. Tracy 1926-6-6 7556 Humboldt near summit on road w from Hoopa to Bair's, Hoopa Mountain, Northern Coast Ranges Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC412726  Pyrola picta P. E. Goddard Jun 1 1906-Jul 1 1906 687 Humboldt Blocksburg Comment
  CAS-BOT-BC62674  Quercus chrysolepis Doris K. Kildale 1927-5-15 3303 Humboldt Petrolia Comment
  HSC40858  Quercus chrysolepis Thomas W. Nelson 1976-7-9 2988 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  HSC41321  Quercus chrysolepis Brad Klipfel 1974-9-2 526 Humboldt Horse Mountain Comment
  UC478893  Quercus chrysolepis Marcus E. Jones, A. M. 1931-7-16 28845 Humboldt near Trinity River (Burnt Ranch) Comment
  JEPS37943  Quercus garryana W. L. Jepson Jul 16 1902-Jul 23 1902 2060 Humboldt trail to Devil's Backbone Trinity Summit 2133 Comment
  UC667989  Quercus garryana Joseph P. Tracy 1935-7-14 14090 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UCSB60634  Quercus garryana var. garryana Muller, Cornelius 1954-6-21 Humboldt Olsen Creek, 2 mi. ESE of Mad River on road to Forest Glen Comment
  CAS-BOT-BC105160  Quercus kelloggii H. E. McMinn 1922-8-5 330 Humboldt Mad River 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-BC104331  Quercus sadleriana Clarence R. Quick 1960-6-27 60 -23 Humboldt Bear Gulch on road from Delta to Trinity Center Comment
  HSC98273  Quercus vacciniifolia Blaze Baker, Matthew Barmann, Michael Max Hentz 1993-4-30 2 Humboldt Horse Mtn. near the radio towers on the uphill side of 6N36 1510 Comment
  UC667981  Quercus vacciniifolia Joseph P. Tracy 1936-8-7 15116 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UCD14015  Quercus vacciniifolia John M. Tucker 1948-9-3 1851 Humboldt California, Humbolt Co.; Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest; Comment
  POM118706  Ranunculus californicus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC18131  Ranunculus californicus var. californicus F. B. Plett 1963-3-31 13 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  RSA85287  Ranunculus flammula var. ovalis F. W. Peirson 1923-7-11 3726 Humboldt 7 miles N of Arcata. Comment
  UC1196232  Ranunculus occidentalis Joseph P. Tracy 1934-6-27 13263 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  UC502921  Ranunculus occidentalis Joseph P. Tracy 1932-7-18 10701 Humboldt Brett Hole Klamath Mountains, Trinity Summit (head) 1828 Comment
  HSC18160  Ranunculus occidentalis var. occidentalis Harvey Doerksen 1962-5-22 30 Humboldt Camp Bauer, across Mad River from Korbel Comment
  HSC32314  Ranunculus occidentalis var. occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5658 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC99092  Ranunculus occidentalis var. occidentalis Cara Witte 2008-7-2 824 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  HSC18166  Ranunculus occidentalis var. occidentalis D. E. Anderson 1962-5-1 2190 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  HSC75828  Ranunculus orthorhynchus var. bloomeri Bill Copeland 1980-7-2 312 Humboldt Near Snow Camp Mtn. 1311 Comment
  JEPS79960  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1922-5-21 6050 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  UC1103014  Ranunculus parviflorus Joseph P. Tracy 1948-6-13 18033 Humboldt halfway between Bridgeville and Blocksburg (around a pool); Larrabee Creek 457 Comment
  CDA3497  Ranunculus parviflorus E. C. Whitney 1962-5-29 Humboldt Millsap property, Pepperwood. 0 Comment
  POM118708  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA85302  Ranunculus repens F. W. Peirson 1926-7-12 12 Humboldt Orick Comment
  HSC64220  Ranunculus uncinatus J. O. Sawyer, M. A. Ericksen 1979-6-23 3381 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC502929  Ranunculus uncinatus Joseph P. Tracy 1932-7-10 10394 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CDA35696  Rhamnus californica subsp. occidentalis T. Gallion 1958-7-11 Humboldt Weitchpec. 0 Comment
  JEPS41976  Rhamnus purshiana W. L. Jepson 1936-8-18 17942 Humboldt Wildcat Ridge, w Humboldt Co. Wildcat Ridge Comment
  UC1197988  Rhamnus purshiana Joseph P. Tracy 1935-7-25 14238 Humboldt lower end of Brett Hole Trinity Summit, Brett Hole 1584 Comment
  UC615053  Rhamnus purshiana Beryl O. Schreiber 1934-6-5 1141 Humboldt Gray's Resort Redwood Creek Comment
  HSC7877  Rhododendron macrophyllum J. Sandborg, F. Sandborg May 1968 14 Humboldt Bluff Creek near Notice Creek, hillside 793 Comment
  UC725903  Rhododendron macrophyllum A. A. Heller 1937-6-8 15898 Humboldt 3 mi n of Trinidad (at Bishop Pine Lodge); Bishop Pine Lodge Comment
  HSC100478  Rhododendron occidentale Carl C. Marshall Apr 1886 186 Humboldt Vicinity of Humboldt Bay. Comment
  POM89847  Rhododendron occidentale Chesnut 1880-8-10 s.n. Humboldt Arcata. Comment
  UC1173683  Rhododendron occidentale Joseph P. Tracy 1939-7-9 16319 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  CAS-BOT-BC200386  Rhododendron occidentale var. paludosum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC96519  Rhododendron occidentale var. paludosum Gordon Leppig 1998-5-11 759 Humboldt Big Lagoon County Park. 3 Comment
  CAS-BOT-BC92521  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt Klamath Mountains. Trinity Summit. Near Corral Prairie. 1524 Comment
  HSC56093  Ribes binominatum G. L. Clifton, Griswold 1979-7-31 11794 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  CAS-BOT-BC92878  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  CHSC115052  Ribes bracteosum Jessica O'Brien 2011-5-3 9231 Humboldt Near Frost Creek ca. 7.22 air miles south of Bridgeville. Triple THP. 502 Comment
  OBI14064  Ribes divaricatum var. klamathense Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek Comment
  UCR80295  Ribes laxiflorum H. E. Parks, S. T. Parks 1937-6-4 24004 Humboldt North Coast, along Prairie Creek at Valley Green Comment
  HSC103237  Ribes lobbii Jade Paget-Seekins 2010-6-22 22 Humboldt Horse Mountain. 10 miles up Titlow Hill Road, on Forest Route 1. 1591 Comment
  JEPS49355  Ribes lobbii W. L. Jepson 1902-7-16 2044 Humboldt Trinity Summit 2133 Comment
  UC1541330  Ribes lobbii J. P. Tracy July 1933 Humboldt Horse Mountain Comment
  RSA0021640  Ribes malvaceum E. K. Balls, P. C. Everett 1953-10-11 18627 Humboldt S. boundary Eel River Lodge, 4.3 mi. N of Richardson s Grove, Highway 101. 152 Comment
  CAS-BOT-BC206036  Ribes menziesii Joseph P. Tracy 1948-2-22 17950 Humboldt Hydesville 91 Comment
  HSC100493  Ribes menziesii Carl C. Marshall Apr 1886 134 Humboldt Everywhere about the bay. Comment
  JEPS49218  Ribes menziesii Jos. P. Tracy 1904-7-31 2130 Humboldt Eureka 152 Comment
  UC154123  Ribes menziesii J. P. Tracy 1909-2-14 2942 Humboldt immediate vicinity Eureka 0 Comment
  RSA0021773  Ribes menziesii E. R. Johnson 1929-08 1405 Humboldt 5 miles above Blue Lake on road to Willow Creek. 152 Comment
  HSC20280  Ribes roezlii Elrid H. Spinas 1948-5-22 43 Humboldt Horse Mtn. Comment
  UC249624  Ribes roezlii var. cruentum Joseph P. Tracy 1922-4-30 6041 Humboldt Three Creeks, along road between Three Creeks and mouth of Willow Creek Northern Coast Ranges 670 Comment
  UC667062  Ribes roezlii var. cruentum Joseph P. Tracy 1933-7-11 12695 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC211980  Ribes sanguineum J. H. Thomas 1949-6-13 914 Humboldt Along trail between Le Perron Flat and Whiteys Peak, east of town of Orleans, Six Rivers National Forest 1371 Comment
  HSC20340  Ribes sanguineum S. J. Hawks 1965-5-6 19 Humboldt Clam Beach County Park Comment
  HSC20345  Ribes sanguineum Frances Oldridge 1946-1 Humboldt Eureka Comment
  HSC31648  Ribes sanguineum Timothy B. Devine 1974-5-4 313 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  UC1541332 Image available Ribes sanguineum Harold E. Parks 1930-5-25 868 Humboldt Laribee Valley 762 Comment
  SEINET13942780 Image available Ribes sanguineum J. D. Ackerman 1973-1 40 Humboldt T6N R1W Sec 26. 1.5 miles north of Manila Comment
  HSC37844  Ribes sanguineum var. glutinosum Thomas W. Nelson, James Nelson 1976-3-11 2266 Humboldt Beside Eel River just N of terminus of Singley Rd. Comment
  HSC40407  Ribes sanguineum var. glutinosum Linda M. Barker 1976-1-24 1311 Humboldt 3 mi. W of Arcata Comment
  HSC89424  Ribes sanguineum var. glutinosum P. A. Daly 1984-5-8 7 Humboldt Trinidad Head. 61 Comment
  UC1198909  Ribes sanguineum var. glutinosum Joseph P. Tracy 1948-9-26 18227 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  RSA0018249  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-3-24 2945 Humboldt Fleener Creek bluff. Comment
  RSA0048254  Ribes sanguineum var. glutinosum James R. Shevock 1972-3-6 1471 Humboldt Along Hwy. 299. 304 Comment
  CHSC97983  Ribes viscosissimum April A. Allard; Gregory D. O'Connell 2005-6-15 13 Humboldt NE of Grouse Mtn. Roadside. 5339 Comment
  HSC103199  Ribes viscosissimum Jade Paget-Seekins 2010-7-5 36 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  HSC48397  Ribes viscosissimum Brad Klipfel 1973-6-10 104 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1198918  Ribes viscosissimum Joseph P. Tracy 1932-7-15 10606 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  CHSC59600  Romanzoffia californica R. N. Raynor 1935-4-8 Humboldt Ft. Seward. Comment
  BLMAR82  Romanzoffia californica Jennifer Anthony-Wheeler 1994-6-2 82 Humboldt IAQUA, growing on moist, rocky cliff on logging rd 3/4mi off pvd rd 822 Comment
  RSA95496  Romanzoffia californica L. S. Rose 1954-4-24 54015 Humboldt Trinidad Head. Comment
  UC492263  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9667 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA43862  Rorippa curvisiliqua H. M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  UC154495  Rosa Harley P. Chandler June, 1901 1334 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC35752  Rosa californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1996 Humboldt French Camp, Bald Hills. Comment
  CAS-BOT-BC146487  Rosa gymnocarpa Doris K. Kildale 1927-5-13 3176 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC146488  Rosa gymnocarpa L. R. Abrams 1918-6-15 7116 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC146495  Rosa gymnocarpa C. B. Wolf 1931-8-30 2376 Humboldt 11 miles above Blue Lake on the Lord Ellis Road to Willow Creek 304 Comment
  HSC76238  Rosa gymnocarpa Teresa Prendusi 1981-7-21 268 Humboldt Near Whiteys Peak 1646 Comment
  UC902159  Rosa gymnocarpa Joseph P. Tracy 1949-8-7 18437 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC146825  Rosa nutkana Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC19631  Rosa nutkana W. L. Jepson 1936-8-17 17912 Humboldt 2 mi. S of Field's Landing near Still's Ranch Comment
  HSC31560  Rosa nutkana Glenn McGourty 1974-6-1 77 Humboldt Comment
  LA208224  Rosa nutkana H. Lewis; 1940-7-3 sn Humboldt Dry lagoon Beach, State Park Comment
  UC1199020  Rosa nutkana var. nutkana Joseph P. Tracy 1928-12-2 8525 Humboldt Elk River Corners Northern Coast Ranges, Eureka 0 Comment
  UC1199022  Rosa nutkana var. nutkana J. P. Tracy 1901-6-23 1163 Humboldt immediate vicinity of Eureka 0 Comment
  POM275415  Rosa pinetorum Lyman D. Benson 1928-7-12 s.n. Humboldt Clam Beach, Trinidad. 15 Comment
  SEINET4092393  Rosa pisocarpa O. M. Clark 1932-1 782 Humboldt South Eureka. Comment
  HSC99307  Rosa rubiginosa C. B. Wolf 1927-8-30 1229 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  HSC56985  Rubus armeniacus Overton, Butler 1979-7-23 9530 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UCR275123  Rubus armeniacus Charity A. Hartshorn 2016-4-24 15 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  CAS-BOT-BC147241  Rubus parviflorus E. A. McGregor 1921-8-17 s.n. Humboldt On old abandoned road grade S.E. of Orick Comment
  HSC19660  Rubus parviflorus D. B. Bader 1963-2-17 11 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  HSC19665  Rubus parviflorus Harvey Doerksen 1962-5-22 25 Humboldt 1/4 mi. N Azalea Reserve State Park, floodplain of Mad River Comment
  HSC77922  Rubus parviflorus L. P. Janeway, Paul Wilson 1984-5-7 768 Humboldt Near Coast Guard Station, N Spit of Humboldt Bay 3 Comment
  HSC19687  Rubus spectabilis R. E. Hafenfeld 1965-5-9 6 Humboldt 1/4 mi. from County Rd. and Gold Bluff Beach Rd. jct. Comment
  SBBG50775  Rubus spectabilis D. G. Forbes 1966-4-4 66 -430 Humboldt Big Lagoon St Park, St Hwy 101 Comment
  HSC39999  Rubus ursinus J. O. Sawyer 1970-6-27 2306 Humboldt Site 318. 1494 Comment
  HSC56343  Rubus ursinus Griswold, Butler 1979-7-10 6268 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC90634  Rubus ursinus Gail Newton 1982-6-1 3571 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC99432  Rubus ursinus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 81 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1199049  Rubus ursinus J. P. Tracy 1901-6-23 1164 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC1199051  Rubus ursinus Joseph P. Tracy 1948-8-15 18134 Humboldt on ridge 2 mi e Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  UCD113990  Rubus ursinus Linda M. Barker 1976-6-1 1565 Humboldt 3 miles west of Arcata. Comment
  UCD17837  Rubus ursinus H. Olmo 8-10 May 1962 62- 39 Humboldt California. Humboldt County: 0.5 miles west of Dinsmore. Comment
  HSC101448  Rubus ursinus subsp. macropetalus Cara M. Witte 2008-6-27 761 Humboldt Approximately 1.5 miles south of intersection of National Forest 1 and 5N04 1546 Comment
  UC146145  Rumex J. P. Tracy 1906-8-18 2543 Humboldt immediate vicinity Eureka 0 Comment
  HSC51775  Rumex acetosella Overton, Butler 1979-7-24 9644 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC76605  Rumex acetosella Denis Kearns 1981-7-22 323 Humboldt Near Whiteys Peak 1487 Comment
  RSA280496  Rumex conglomeratus Lyman Benson 1998-7-11 s.n. Humboldt Weott Ranger Station, Seaward N Coast, S fork Eel. 61 Comment
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Aug 16 2013
  HSC79366  Rumex crispus Kenneth Clark 1980-5-10 649 Humboldt Shelter Cove, Point Delgada, on access trail to Western Beach 6 Comment
  JEPS39913  Rumex obtusifolius W. L. Jepson 1932-8-2 16476 Humboldt Bull Creek Dyerville Comment
  SDSU9723  Rumex obtusifolius subsp. agrestis D. F. Howe 1959-8-4 2804 Humboldt 86 miles W of Weaverville on #299. 152 Comment
  CDA2887  Rumex pulcher T. C. Fuller 1958-6-17 589 -58 Humboldt Hydesville. 0 Comment
  UC1541397  Rumex salicifolius var. salicifolius Harold E. Parks 1934-8 5166 Humboldt Big Lagoon Comment
  UC1222604  Rupertia physodes Joseph P. Tracy 1950-6-15 18783 Humboldt 7 mi n Harris; Mail Ridge, Jenk's Ranch Comment
  UC672874  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 Comment
  UC1103533  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1901-1-1 983 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC26873  Salicornia depressa Clifton Raymond Chesbrough 1973-6-20 103 Humboldt .25 mi. N of Eureka slough along Hwy. 101 Comment
  UC55430  Salicornia virginica J. P. Tracy 1901-8-7 1255 Humboldt Samoa Humboldt Bay 0 Comment
  CAS-BOT-BC129893  Salix bonplandiana Joseph P. Tracy; Harold E. Parks 1942-5-16 11567 Humboldt Vicinity of Garberville 152 Comment
  UC1196669  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14266 Humboldt meadows at Water Dog Lake; Trinity Summit 1828 Comment
  UC490538  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt blueberry swamp in McKay Meadow; Klamath Mts., Trinity Summit 1524 Comment
  UC1173615  Salix exigua var. hindsiana Joseph P. Tracy 1935-5-30 13912 Humboldt at Willow Creek Trinity R. Valley 152 Comment
  HSC100648  Salix flavescens Carl C. Marshall Mar 1887 390 Humboldt Humboldt Hill. Comment
  CAS-BOT-BC104112  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01336 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107704  Salix hookeriana Harold E. Parks 1931-3-26 905 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107705  Salix hookeriana Harold E. Parks 1931-3-24 915 Humboldt Trinidad 90 Comment
  CAS-BOT-BC107713  Salix hookeriana Doris K. Kildale 1927-3-25 3003 Humboldt Near Buckspot School House 50 Comment
  CAS-BOT-BC107733  Salix hookeriana Harold E. Parks; Susan T. Parks 1932-4-10 1103 a Humboldt Little River Lagoon, Trinidad Comment
  CHSC9656  Salix hookeriana E. L. Smith 1971-8-18 1026 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  HSC40380  Salix hookeriana Linda M. Barker 1976-3-22 1341 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  JEPS13091  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Fortuna; bank of Eel River 15 Comment
  JEPS38443  Salix hookeriana J. P. Tracy 1906-4-12 2401 Humboldt Immediate vicinity of Eureka 0 Comment
  POM167518  Salix hookeriana Joseph P. Tracy 1918-4-7 4863 Humboldt Dows Prairie Sand Dunes. At mouth of Strawberry Creek. 6 Comment
  POM362591  Salix hookeriana H. E. Parks 1931-3-24 914 Humboldt Fortuna. Eel River. 10 Comment
  SD937  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  SD939  Salix hookeriana Harold E. Parks August 1931 1053 Humboldt Little River Lagoon Comment
  UC1196547  Salix hookeriana Joseph P. Tracy 1926-2-21 7360 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC1222300  Salix hookeriana Joseph P. Tracy 1950-9-10 19366 Humboldt 1 mi inland from Cape Mendocino (1/2 mi s of town, foothills of Cape Ridge); , Cape Ridge 60 Comment
  UC481379  Salix hookeriana Harold E. Parks and J. P. Tracy 1931-3-26 905 Humboldt on Van Duzen R. Alton; Van Duzen R., Alton 15 Comment
  UC490472  Salix hookeriana Joseph P. Tracy 1932-9-5 10771 Humboldt Mattole River near Petrolia; North Coast Region 15 Comment
  UC492338  Salix hookeriana Harold E. and Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon Trinidad (<same place> from which No. 01000...was taken in 1931) Comment
  UC512099  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1210 b Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC470455  Salix jepsonii Joseph P. Tracy Jul 16 1930-Jul 19 1930 8928 Humboldt meadow at McKay Camp; Northern Coast Ranges, S. Fork Mt. 1676 Comment
  JEPS12975  Salix laevigata Joseph P. Tracy 1932-4-23 9835 Humboldt between Miranda and Redway (S. Fork of Eel River); Northern Coast Ranges 91 Comment
  UC469475  Salix laevigata Joseph P. Tracy 1931-10-18 9737 Humboldt on Eel R. Camp Grant; Northern Coast Ranges, Eel R., Camp Grant 60 Comment
  UC1196580  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1933-5-7 12153 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC107102  Salix lasiolepis Joseph P. Tracy 1933-2-26 10912 Humboldt Miranda, along south fork of Eel River 121 Comment
  CAS-BOT-BC107616  Salix lasiolepis Harold E. Parks 1931-9-26 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  CAS-BOT-BC107647  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. on Trinity Highway 762 Comment
  CAS-BOT-BC107648  Salix lasiolepis Joseph P. Tracy 1932-10-8 10866 Humboldt Berry's Mt. on Trinity Highway 762 Comment
  HSC20008  Salix lasiolepis J. P. Tracy 1933-4-2 10961 Humboldt Berry's Mt. on Trinity Hwy. E of Redwood Creek 762 Comment
  HSC20017  Salix lasiolepis J. P. Tracy 1933-4-9 10968 Humboldt Bridgeville, along Van Duzen River 229 Comment
  JEPS12931  Salix lasiolepis Joseph P. Tracy 1931-5-31 9328 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  UC1196616  Salix lasiolepis Joseph P. Tracy 1934-3-4 13143 Humboldt Miranda South Fork of Eel River 121 Comment
  UC470408  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC506378  Salix lasiolepis Joseph P. Tracy 1932-10-2 10858 Humboldt near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC511981  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UCD111588  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 01323 Humboldt West slope of Berry's Mountain, east of Redwood Creek, on Trinity Highway. 762 Comment
  CAS-BOT-BC107299  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107301  Salix lasiolepis var. bigelovii Doris K. Kildale 1926-8-8 2477 Humboldt South Fork of Eel River near Dyerville bridge 51 Comment
  RSA298153  Salix lucida subsp. lasiandra Thomas W. Nelson 1978-4-23 3888 Humboldt At jct of Copher and Samoa Rds. N of Samoa. Comment
  CAS-BOT-BC125617  Salix melanopsis Doris K. Kildale 1926-7-11 2365 Humboldt Bear River near Capetown 30 Comment
  CAS-BOT-BC125618  Salix melanopsis A. A. Heller 1923-7-10 13796 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  CAS-BOT-BC125637  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 284 Humboldt East of Redwood Highway, 6 km. south of Alton 20 Comment
  CAS-BOT-BC125638  Salix melanopsis Harold E. Parks 1931-5-28 01027 Humboldt Little River Lagoon, at sea level Comment
  POM218958  Salix melanopsis H. P. Bracelin 1931-5-2 284 Humboldt E of Redwood Hwy, 6km S of Alton. 20 Comment
  SBBG57930  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 972 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  SD975  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 967 Humboldt Mouth of Willow Creek at Trinity River, sandbars 149 Comment
  UC470456  Salix melanopsis Joseph P. Tracy 1931-9-7 9647 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481292  Salix melanopsis Harold E. Parks 1931-5-14 964 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC511989  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1245 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  UC519370  Salix melanopsis Joseph P. Tracy 1933-6-9 12531 Humboldt along Eel R. Shively; Northern Coast Ranges, Eel R., Shively 30 Comment
  UC519375  Salix melanopsis Joseph P. Tracy 1933-6-11 12551 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  CAS-BOT-BC129151  Salix scouleriana Doris K. Kildale 1927-5-13 3146 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC129160  Salix scouleriana Joseph P. Tracy 1937-3-21 15236 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  HSC20083  Salix scouleriana W. K. Parks Jul 1933 Humboldt S Fork Mtn. Comment
  POM219539  Salix scouleriana H. E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge. 150 Comment
  UC1196698  Salix scouleriana Joseph P. Tracy 1921-1-15 5412 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC481211  Salix scouleriana Harold E. Parks 1931-5-20 994 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  UC526712  Salix scouleriana Joseph P. Tracy 1934-3-13 13162 Humboldt in business district Eureka; Northern Coast Ranges 0 Comment
  POM182025  Salix sessilifolia Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River. Alton to Fortuna. 15 Comment
  UCD111733  Salix sessilifolia Carleton R. Ball; Harold E. Parks, and Joseph P. Tracey 1932-5-12 01245 Humboldt Van Duzen River at Blue Slide. 91 Comment
  HSC20122  Salix sitchensis H. E. Parks, J. P. Tracy 1931-3-26 908 Humboldt Van Duzen River Comment
  HSC37885  Salix sitchensis Thomas W. Nelson 1976-4-3 2287 Humboldt Van Duzen River at Grizzley Creek Comment
  UC469470  Salix sitchensis Joseph P. Tracy 1931-9-19 9683 Humboldt Van Duzen R. Alton; Northern Coast Region, , Alton 30 Comment
  UC1196609  Salix tracyi Joseph P. Tracy 1934-9-30 13680 Humboldt Van Duzen River at Bridgeville 198 Comment
  UC1196618  Salix tracyi Joseph P. Tracy 1936-10-17 15201 Humboldt Blue Slide, on Van Duzen River 91 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
  RSA21578  Sambucus caerulea C. B. Wolf 1937-9-8 9299 Humboldt North Coast Range, Bull Creek-Petrolia Road, Bull Creek, 6 miles west of Redwood Highway 183 Comment
  RSA114994  Sambucus callicarpa E. K. Balls, L. W. Lenz 1955-5-15 20735 Humboldt 7.7 miles southwest from Ferndale along Old Coast Road to Capetown 518 Comment
  SD56862  Sambucus callicarpa Darley F. Howe 1963-8-6 3704 Humboldt 4.5 miles south of Orick on Highway 101. Comment
  HSC57090  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-24 9804 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  JEPS13393  Sambucus racemosa var. racemosa Lincoln Constance 1934-5-26 679 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end, sand and gravel bar of river) 45 Comment
  CAS-BOT-BC157199  Sanguisorba officinalis Carl B. Wolf 1934-7-2 5901 Humboldt Snow Camp (mts. E. of Korbel), near small lake 1371 Comment
  UC154105  Sanicula arctopoides J. P. Tracy 1901-4-14 1018 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  JEPS220  Sanicula bipinnatifida Lincoln Constance 1934-6-3 806 Humboldt road from High Rock to Horse Prairie ((<High Rock> on Redwood Hwy, 1 mi n of Dyerville)); South Fork Eel River, Bull Creek Region Comment
  UC1197105  Sanicula bipinnatifida Joseph P. Tracy 1926-5-9 7460 Humboldt Northorn Coast Ranges, Valley of South Yager Creek Valley of South Yager Creek; Northorn Coast Ranges, Valley of South Yager Creek 762 Comment
  JEPS284  Sanicula crassicaulis Lincoln Constance 1934-5-24 642 Humboldt Bull Creek Region, South Fork Eel River South Fork Eel River; Bull Creek Region, South Fork Eel River 121 Comment
  UC1006710  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  UC1022530  Sanicula crassicaulis C. Ritchie Bell 1952-5-2 3 X450 Humboldt 1.1 mi w of Hydesville Comment
  UC642273  Sanicula graveolens Joseph P. Tracy 1932-7-12 10465 Humboldt Trinity Summit, Head of Brett Hole Brett Hole; Trinity Summit, Brett Hole 1828 Comment
  UC1515012  Sanicula laciniata Bolander June 1867 6522 Humboldt Mattole River Comment
  UC1755277  Sanicula tracyi Dean W. Taylor 2007-7-11 20159 Humboldt White Oak Opening, along Forest Highway 1 1254 Comment
  UC642339  Sanicula tracyi Joseph P. Tracy 1929-7-4 8614 B Humboldt French Camp Ridge 1066 Comment
  JEPS973  Sanicula tuberosa Joseph P. Tracy 1927-6-12 8156 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1219 Comment
  UC1601285  Satureja douglasii Joseph P. Tracy 1923-6-20 6315 Humboldt White Thorn Valley 304 Comment
  POM141795  Saxifraga mertensiana Joseph P. Tracy 1911-6-4 3217 Humboldt Along Little River. 5 miles from the coast. 122 Comment
  RSA0101647  Sceptridium multifidum Doris K. Kildale 1937-8-26 15341 Humboldt Christmas Prairie. Comment
  HSC96371  Schoenoplectus mucronatus Gordon Leppig 2004-9-1 2196 Humboldt Eel River at Holmes Flat 400 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
  UC213328  Scirpus cernuus Joseph P. Tracy 1920-6-6 5336 Humboldt along Freshwater Creek (around Humboldt Bay); Northern Coast Ranges, Humboldt Bay, Freshwater Creek 30 Comment
  HSC36890  Scirpus microcarpus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2058 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  HSC58790  Scirpus microcarpus G. L. Clifton 1979-7-31 11362 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC668009  Scirpus microcarpus Joseph P. Tracy 1933-7-25 12860 Humboldt Grouse Mountain 1524 Comment
  HSC44248  Scoliopus bigelovii Barbara Kelly 1977-4-23 301 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  SEINET12815835  Scoliopus bigelovii John D. Freeman, Ruth Freeman 1967-1 583 Humboldt Just west of California Hwy. 36 and just north of Carlotta. 52 Comment
  UC30090  Scoliopus bigelovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5299 Humboldt Hubbard's Station North Coast Ranges, Hubbard's Station Comment
  SEINET12050531  Scoliopus bigelovii F. H. Utech 1988-1 88 -023 Humboldt 0.1 mi N of Meyers Flat along Avenue of the Giants (alt. US 101), along South Fork Eel River 60 Comment
  UC1103490  Scoliopus bigelovii Joseph P. Tracy 1921-3-6 5419 Humboldt Hydesville Northern Coast Ranges, Hydesville 91 Comment
  CHSC31329  Scrophularia californica Mark Stopher 1980-6-4 87 Humboldt Along roadside and along Elk River near Rte 101 bridge. 1 Comment
  JEPS62921  Scutellaria antirrhinoides Joseph P. Tracy 1930-6-15 8763 Humboldt Dobbyn Creek 152 Comment
  UC175798  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-26 3842 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  BLMAR737  Scutellaria antirrhinoides Jennifer Wheeler 2015-5-12 737 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  JEPS62895  Scutellaria californica Lincoln Constance 1934-6-27 936 Humboldt on s side of Eel River (near it's junction with the South Fork, at end of railroad bridge, 1/2 mi nw of South Fork P.O and R. R. Station); Bull Creek Region, Eel River Comment
  JEPS62902  Scutellaria siphocampyloides Joseph P. Tracy 1932-5-17 10083 Humboldt Trinity River Valley, Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  JEPS109415  Sedum laxum subsp. heckneri D. W. Taylor 2004-6-24 19137 Humboldt Clear Lake, along Titlow Hill road. Comment
  UC1198839  Sedum laxum subsp. heckneri Joseph P. Tracy 1933-8-30 13015 Humboldt Grouse Mountain Grouse Mountain (on rock ledge) 1371 Comment
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Aug 17 2011
  HSC57996  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-31 11759 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC64750  Sedum oregonense Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC6478  Sedum radiatum W. K. Parks Jul 1933 Humboldt S Fork Mtn. Comment
  HSC97172  Sedum radiatum Erin Lonergan, Benjamin Hart 2007-6-11 7 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1524 Comment
  UC302107  Sedum radiatum Joseph P. Tracy 1926-7-5 7726 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley South Yager Creek 762 Comment
  HSC89448  Sedum spathulifolium var. pruinosum P. A. Daly 1984-7-15 33 Humboldt Trinidad Head 61 Comment
  HSC70962  Sedum spathulifolium var. spathulifolium Thomas W. Nelson 1977-6-15 3456 Humboldt Along Titlow Hill Rd., 3/4 mi. S of junction with Hwy. 299 Comment
  SEINET11722735  Selaginella bigelovii E. A. York 1990-1-10 2658 Humboldt USGS Redwood Field Station, Arcata Comment
  JEPS306  Selaginella wallacei Joseph P. Tracy 1932-3-29 9783 Humboldt coast bluffs Trinidad; Northern Coast Region 60 Comment
  UC1284956  Senecio blochmaniae R. F. Hoover 1946-10-29 6526 Humboldt near Callender railroad siding Comment
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Mar 19 2007
  CAS-BOT-BC364021  Senecio integerrimus var. major Doris K. Kildale 1926-5-2 1896 Humboldt Willow Creek Flat 152 Comment
  UC581707  Senecio integerrimus var. major Joseph P. Tracy 1932-7-12 10430 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC91378  Senecio integerrimus var. major Harley P. Chandler June 1901 1274 Humboldt Hupa Indian Reservation North Coast Ranges 1036 Comment
  BLMAR294  Senecio integerrimus var. major Jennifer Anthony-Wheeler 2002-4-30 294 Humboldt Clark Butte 670 Comment
  UC450005  Senecio sylvaticus Joseph P. Tracy 1918-9-1 5095 Humboldt Nowella Camp, on old Kneeland Prairie Road 457 Comment
  HSC34282  Senecio triangularis K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  CAS-BOT-BC364331  Senecio triangularis Doris K. Kildale 1925-8-16 1172 Humboldt Trinity Summit - Elk Horn Prairie 1524 Comment
  HSC6135  Senecio vulgaris S. R. Johnson 1965-4-16 42 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC95584  Senecio vulgaris Andrea Pickart 2002-3-14 4 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  CAS-BOT-BC85838  Sequoia sempervirens Doris K. Kildale 1927-5-15 3160 Humboldt Petrolia Bridge Mattole River Comment
  UC1222350  Sequoia sempervirens Joseph P. Tracy 1950-12-18 19387 Humboldt Parks's Place Trinidad, Parks' Place 3 Comment
  UC333628  Sequoia sempervirens unknown Sept. 1901 Humboldt Eureka Comment
  UC212874  Setaria pumila Joseph P. Tracy 1919-9-13 5193 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC1145166  Setaria viridis Joseph P. Tracy Sept 1936 15189 1/2 Humboldt Eureka 30 Comment
  HSC19856  Sherardia arvensis F. B. Plett 1963-4-27 37 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  JEPS12498  Sherardia arvensis W. L. Jepson 1902-6 1936 Humboldt above Korbel Comment
  UC1541655  Sherardia arvensis Harold E. Parks Jun 1935 4995 Humboldt Trinidad; Spruce Cove 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
  HSC16012  Sidalcea malachroides J. P. Tracy 1936-5-17 14812 Humboldt Fickle Hill, 6 mi. SE of Arcata. 610 Comment
  SBBG4711  Sidalcea malachroides H. and M. Dearing 1939-5-24 3428 Humboldt Cape Mendocino 121 Comment
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Oct 29 2014
  SDSU8182  Sidalcea malachroides D. F. Howe 1969-6-4 4626 Humboldt 14.5 miles east of Alton on #36 91 Comment
  UC668139  Sidalcea malachroides Joseph P. Tracy 1936-5-17 14812 Humboldt 6 mi se Arcata (Fickle Hill); se of Arcata, Fickle Hill 609 Comment
  SEINET11982179  Sidalcea malviflora J. P. Tracy 1950-1 18738 Humboldt 7 mi S of Ferndale, Bear River Ridge 610 Comment
  UC1197977  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1930-7-23 9124 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC35603  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2009 Humboldt French Camp, Bald Hills. Comment
  RSA168955  Sidalcea malviflora subsp. patula Joseph P. Tracy 1950-6-8 18734 Humboldt Bear River Ridge, 7 miles south of Ferndale. 610 Comment
  UC902191  Sidalcea malviflora subsp. patula Harold E. Parks May 1949 Humboldt Bear River Ridge 609 Comment
  CAS-BOT-BC205761  Sidalcea oregana David Imper 1985-8-1 s.n. Humboldt Six Rivers National Forest. Approximately 1/2 mile west of Ladder Rock alongside trail 1371 Comment
  POM209753  Sidalcea oregana subsp. spicata Joseph P. Tracy 1932-7-10 10382 Humboldt Trinity Summit Corral Prairie, in wet meadow Comment
  CAS-BOT-BC384547  Silene bridgesii Henry M. Pollard 1948-7-17 s.n. Humboldt Woods near Orleans Comment
  UC852804  Silene californica Elizabeth Parsons Hawver Jun 1905-June 1915 Humboldt Carlotta Comment
  HSC57950  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-7-31 11629 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC104081  Silene campanulata subsp. glandulosa S. Carothers 2001-6-20 Humboldt Six Rivers National Forest; Lassics Botanical Area, below Rd. 1S11 1579 Comment
  JEPS50918  Silene gallica Lincoln Constance 1934-5-24 631 Humboldt lower Look Prairie on e side Bull Creek Region, South Fork Eel River, Look Prairie (Bull Creek Region, South Fork Eel River) 121 Comment
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Mar 24 2013
  UC668084  Silene grayi Joseph P. Tracy 1935-7-28 14319 Humboldt head of Devil's Hole , head of Devil's Hole (Trinity Summit) 1828 Comment
  UC1137896  Silene hookeri H. S. Yates 1936-6-17 5719 Humboldt Burr Valley South Fork Peak Quad. Comment
Read comments
Aug 11 2014
  JEPS23246  Silene hookeri Joseph P. Tracy 1939-5-14 16283 Humboldt lower foothills of nw slope Buck Mountain 914 Comment
  HSC4170  Silene laciniata subsp. californica Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  JEPS23248  Silene lemmonii Joseph P. Tracy 1932-7-12 10452 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  UC1198790  Sisymbrium altissimum Joseph P. Tracy 1933-6-25 12618 Humboldt 2 to 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  JEPS109834  Sisyrinchium bellum Dean W. Taylor 2005-6-10 19344 Humboldt Bear River Ridge, along the Mattole Road 3 road miles North (uphill) from Capetown 335 Comment
  JEPS62111  Smilacina racemosa W. L. Jepson 1932-7-30 16449 Humboldt Bull Creek 121 Comment
  JEPS12058  Solanum americanum W. L. Jepson 1936-8-12 17889 Humboldt South Fork Eel River; Philipsville, South Fork Eel River Comment
  UC673110  Solanum americanum Joseph P. Tracy 1940-10-5 16746 Humboldt Trinidad 3 Comment
  HSC21308  Solanum nigrum Francis Morrell 1949-5-30 35 Humboldt Weitchpec Comment
  JEPS12167  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  SD143524  Solidago canadensis subsp. elongata H. E. Parks 1931-7 1056 Humboldt Trinidad 74 Comment
  HSC48316  Solidago elongata Brad Klipfel 1973-8-3 306 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1199288  Soliva sessilis Joseph P. Tracy 1939-4-18 16217 Humboldt Garberville 152 Comment
  CAS-BOT-BC374596  Sonchus oleraceus F. J. Kirby 1958-7-1 s.n. Humboldt West of Bridgeville 152 Comment
  HSC102045  Sorbus scopulina M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 948 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  UC1198764  Sorbus scopulina var. scopulina Joseph P. Tracy 1935-7-28 14310 Humboldt Ridges e of Corral Prairie; Trinity Summit 1828 Comment
  HSC62679  Sparaxis tricolor Michelle Stevens 1979-5-18 49 Humboldt Arcata, 11th and B St. 0 Comment
  UC1542879  Sparganium emersum var. emersum Harold E. Parks Sep 1934 5246 Humboldt Dry Lagoon Comment
  HSC89257  Spartina alterniflora Karen Kovacs 1989-10-26 Humboldt .5 mi. N of Samoa-Eureka bridge, E of Hwy. 255, Humboldt Bay Comment
  CDA26260  Spartina densiflora T. C. Fuller 1961-9-28 7051 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  POM319543  Spartina densiflora Patricia Wilder 1968-8-21 4415 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  SBBG89225  Spartina foliosa A. Keedy 1988-9-18 8 Humboldt Jolly Giant Crk {near mouth}; Arcata Salt Marsh Comment
  SEINET244292 Image available Spartina foliosa G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6994 Humboldt North coastal strand: North spit of Samoa Peninsula, 0.5 mi N of CA-255 bridge over Humboldt Bay. 6 Comment
  HSC12566  Spergula arvensis D. La Conte 1970-8-10 3 Humboldt Comment
  HSC4234  Spergula arvensis D. E. Anderson 1961-9-13 1823 Humboldt Comment
  HSC68109  Spergularia rubra J. P. Smith, J. O. Sawyer 1973-5-12 6670 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  CAS-BOT-BC149620  Spiraea douglasii Harley P. Chandler 1901-5-1 1197 Humboldt Humboldt Bay 30 Comment
  HSC27018  Spiraea douglasii Brad Klipfel 1973-8-9 267 Humboldt Big Lagoon County Park Comment
  POM17174  Spiraea douglasii J. B. Feudge 1923-7-23 57 Humboldt Trinidad. 9 Comment
  RSA472778  Spiraea douglasii E. S. Spalding 1884-7-12 s.n. Humboldt Near Arcata. Comment
  BLMAR221  Spiranthes romanzoffiana Jennifer Anthony-Wheeler 1996-7-26 221 Humboldt King range, growing with annual & perrenial grasses 91 Comment
  HSC16657  Spiranthes romanzoffiana David Adams 1960-7-15 Humboldt Near Fort Humboldt monument, Eureka 15 Comment
  UC1196404  Spiranthes romanzoffiana Joseph P. Tracy 1936-8-2 15066 Humboldt French Camp Ridge; by spring 1066 Comment
  JEPS63065  Stachys ajugoides var. rigida W. L. Jepson 1932-7-26 16418 Humboldt Bull Creek 106 Comment
  UC1222861  Stachys ajugoides var. rigida Joseph P. Tracy 1950-6-8 18741 Humboldt near Petrolia (hills between town and Ocean); Bear River 30 Comment
  UC1239725  Stachys ajugoides var. rigida Joseph P. Tracy 1943-7-11 17434 Humboldt Park's garden Trinidad 3 Comment
  HSC59567  Stachys arvensis Rick Lundquist 1979-4-9 5 Humboldt Arcata, St. Louis Rd., .1 mi. N of Hwy. 101 overpass 15 Comment
  HSC96495  Stachys chamissonis Gordon Leppig 1997-6-19 458 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC54587  Stachys rigida var. rigida Overton, Butler 1979-7-24 9651 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC56102  Stellaria crispa G. L. Clifton 1979-7-31 11825 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC4272  Stellaria media S. J. Hawks 1965-4-3 13 Humboldt W of Eureka City Airport Comment
  HSC98400  Stellaria media R. D. Modafferi 1965-4-8 3 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  SEINET6905902  Stellaria nitens Joseph P. Tracy 1913-5-4 4045 Humboldt Kneeland Prairie, altitude 2500 feet. Comment
  OBI22262  Stipa lemmonii Joseph P. Tracy 1938-6-17 15968 Humboldt Panther garp, on the road from Bull Crk to Upper Mattole 823 Comment
  HSC58676  Stipa occidentalis var. californica Gilbert Muth 1979-8-1 12181 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  CAS-BOT-BC87611  Streptanthus tortuosus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mount Trail. 1524 Comment
  CAS-BOT-BC87613  Streptanthus tortuosus Joseph P. Tracy; F. W. Pennell 1940-7-7 16667 Humboldt Grouse Mountain. 1463 Comment
  UC1281747  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt rocky outcrops in grassland s airport (about 5 mi e of Kneeland) Comment
  UC275556  Streptopus amplexifolius var. americanus Joseph P. Tracy 1923-6-24 6366 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges 1066 Comment
  SBBG88906  Stuckenia pectinata A. Keedy 1988-9-20 11 Humboldt off Alder Grove Rd, N of Arcata, near Hwy 299, Arcata Salt Marsh Project 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
  HSC73239  Symphoricarpos albus var. laevigatus M. A. Baker 1980-5-18 1320 Humboldt Near Black Mountain. 360 Comment
  RSA245237  Symphoricarpos albus var. laevigatus Tim Baroni 1971-7-6 112 Humboldt Appox. 2 miles S of Ferndale on Mattole road. Comment
  HSC100413  Symphoricarpos racemosus Carl C. Marshall Jun 1886 291 Humboldt Coyote Camp. Comment
  HSC98807  Symphyotrichum bracteolatum Cara Witte 2008-8-5 986 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  CAS-BOT-BC99166  Symphyotrichum chilense Carl B. Wolf 1937-9-9 9312 Humboldt North Coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 304 Comment
  HSC38332  Symphyotrichum chilense Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  HSC95386  Symphyotrichum chilense Andrea Pickart 2002-7-9 174 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  UC1409110  Symphyotrichum subspicatum Robert F. Thorne and P. Everett 1965-8-9 35336 Humboldt 3 mi n, along Hwy. 101 Eureka 1 Comment
  JEPS32727  Symphytum asperum Kate Jared Stirring 1923-6-5 Humboldt Arcata Comment
  UC902207  Synthyris reniformis Joseph P. Tracy 1941-4-8 16810 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 609 Comment
  UCD124640  Synthyris reniformis D. C. Hagar 1957-6-20 145 -a Humboldt Cedar Creek Divide, 5.5 miles east of Willow Creek. 1066 Comment
  CAS-BOT-BC376718  Tanacetum bipinnatum Lewis S. Rose 1972-7-5 72005 Humboldt Samoa 3 Comment
  CAS-BOT-BC376737  Tanacetum bipinnatum L. R. Abrams 1916-7-18 6122 Humboldt Arcata to Trinidad Comment
  SEINET3816601  Tanacetum bipinnatum A. A. Heller 1937-6-12 15900 Humboldt On the coast at Trinidad just below the road leading up to the light house on Trinidad head. Humid transition life zone. Comment
  UCD150391  Tanacetum bipinnatum Harry A. George; G. M., B. M. 1967-7-11 s.n. Humboldt Humboldt Bay, South Spit. Comment
  SD39584  Tanacetum camphoratum Charlotte Hoak 1931-7-15 Humboldt Eureka Comment
  UC127603  Tanacetum camphoratum J. Burtt Davy 1899-6-30 6183 Humboldt near Ferndale (North Coast Ranges); North Coast Ranges Comment
  RSA167250  Taraxacum laevigatum Joseph P. Tracy 1951-6-24 19542 Humboldt Ashfield Ridge 762 Comment
Read comments
Aug 15 2009
  HSC70325  Taraxacum officinale M. A. Baker 1980-6-8 1880 Humboldt Near Buck Flat. 1554 Comment
  UC1223046  Taraxacum officinale Joseph P. Tracy 1951-6-24 19542 Humboldt Ashland Ridge Kneeland Prairie 762 Comment
  UC1223145  Taraxacum officinale Joseph P. Tracy 1943-4-10 17415 Humboldt Eureka Comment
  HSC59652  Taraxacum officinale Michael Dalke 1979-4-1 12 Humboldt 0.1 mi. E of Hwy. 101, N Bank Rd. 12 Comment
  UC1197068  Tauschia kelloggii Joseph P. Tracy 1936-6-17 14943 Humboldt Bridgeville 198 Comment
  CAS-BOT-BC85211  Taxus brevifolia Henry M. Pollard 1986-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC85213  Taxus brevifolia Doris K. Kildale 1927-5-13 3126 Humboldt Redwood Creek at Berry's 289 Comment
  HSC54651  Taxus brevifolia Overton, Butler 1979-7-25 9854 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  RSA160832  Taxus brevifolia Joseph P. Tracy 1924-9-7 6862 Humboldt Grizzly Creek on Van Duzen River 91 Comment
  JEPS49695  Tellima grandiflora Harley P. Chandler May 1901 1232 Humboldt Humboldt Bay; North Coast Range 121 Comment
  UC1222362  Tellima grandiflora Joseph P. Tracy 1950-6-8 18722 Humboldt 7 mi s Ferndale (near Mountain Glen Ranch, Bear River Ridge, summit of ridge); Bear River Ridge 609 Comment
  UC56716  Tellima grandiflora Harley P. Chandler May 1901 1232 Humboldt Humboldt Bay; North Coast Ranges 121 Comment
  UC160904  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1908-6 2714 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1222745  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1950-7-25 18879 Humboldt Burr Valley Buck Mountain (nw slope of mt.) 1066 Comment
  CAS-BOT-BC399769  Thalictrum polycarpum Joseph P. Tracy 1933-5-20 12256 Humboldt Northern Coast Ranges. Mattole Valley 30 Comment
  SEINET6934811  Thermopsis macrophylla var. venosa Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt West of top of grade down to Klamath River, southeast of Orick. Comment
  UC10967  Thlaspi montanum var. montanum Harley P. Chandler June, 1901 1377 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 182 Comment
  RSA126263  Thuja plicata I. L. Wiggins 1955-7-31 13594 Humboldt Hillside 9 miles east of Arcata along Highway 299 Comment
  RSA47094  Thuja plicata Doris K. Kildale 1926-8-28 2566 Humboldt Morrison gulch - Bear River ridge 412 Comment
  UCR32079  Thuja plicata David J. Keil 1983-7-2 17308 Humboldt North Coast Range, c. 10.5 mi east of the junction with US Hwy 101 along SR 299 [2-3 mi. east of Blue Lake] 183 Comment
  UC154082  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1908-6 2734 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA246663  Tiarella trifoliata var. unifoliata R. F. Thorne, Percy C. Everett 1965-8-4 35127 -b Humboldt Wailaki Recreation site. 518 Comment
  UC858947  Tolmiea diplomenziesii Eliz. Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  UC11943  Tolmiea diplomenziesii J. Burtt Davy Jun 1899 5628 Humboldt Hoopa Mt.; North Coast Ranges Comment
  BLMAR634  Tonella tenella Jennifer Wheeler 2011-6-15 634 Humboldt Lacks Creek, Pine Ridge Road 914 Comment
  UC147861  Tonella tenella Joseph P. Tracy 1908-6 2736 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  SEINET7295170 Image available Torreyochloa pallida var. pauciflora Richard Spellenberg 1965-1 1135 Humboldt In partly shaded area, in redwood forest; about 1 1/2 mi. e. of Bayside (which is 2 mi. s. of Arcata) on road leading up Jacoby Creek Comment
  CAS-BOT-BC169175  Toxicodendron diversilobum Volney Rattan 1878-1-1 s.n. Humboldt Undspecified Comment
  JEPS63913  Toxicodendron diversilobum W. L. Jepson 1932-8-1 16469 Humboldt Bull Creek 121 Comment
  UC1199001  Toxicodendron diversilobum Joseph P. Tracy 1933-6-7 12523 Humboldt Bridgeville 198 Comment
  UC902124  Toxicodendron diversilobum Joseph P. Tracy 1949-8-8 18404 Humboldt Trinity R. Valley at Willow Creek Trinity R. Valley, Willow Creek 152 Comment
  JEPS88012  Tracyina rostrata John L. Strother with Bruce G. Baldwin and Robert Ornduff 1996-5-30 1363 Humboldt on unpaved Stewart Ranch Rd ca 1 km (0.6 mi) e Alderpoint-Blocksburg Road (ne of Alderpoint) 160 Comment
  UC1199328  Tracyina rostrata Joseph P. Tracy 1938-6-9 15975 Humboldt about 1 mi sw Alder Point (town) 304 Comment
  UC165853  Tracyina rostrata Joseph P. Tracy 1903-5-23 1892 Humboldt Alder Point Northern Coast Ranges 243 Comment
  UC1225747  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1948-9-5 18169 Humboldt Trinity Summit Range, at Happy Camp Mountain Happy Camp Mountain; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  JEPS63108  Trichostema lanceolatum Milo S. Baker 1923-8-25 332 Humboldt highway near Garberville; North Coast Comment
  JEPS63123  Trichostema lanceolatum W. L. Jepson 1921-9-11 9466 Humboldt DeVoy Flat, South Fork Eel River Comment
  CDA40991  Trichostema laxum E. C. Whitney 1965-9-2 s.n. Humboldt [no additional data] 0 Comment
  HSC14455  Trichostema laxum H. E. Parks, J. P. Tracy 1941-8-28 11507 Humboldt Van Duzen River, Low Gap 793 Comment
  HSC68322  Trientalis latifolia J. P. Smith 1973-5-26 6857 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SBBG5617  Trientalis latifolia H. and M. Dearing 1933-5-16 1292 Humboldt Weott Comment
  BLMAR277  Trientalis latifolia Jennifer Anthony-Wheeler 1999-7-30 277 Humboldt Headwaters Forest Reserve, growing in shaded places esp woodlands 548 Comment
  JEPS65706  Trifolium albopurpureum var. albopurpureum W. L. Jepson 1902-6-20 1899 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC1223385  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1934-6-24 13260 Humboldt Kneeland Prairie 762 Comment
  UC1223393  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1948-5-31 17989 Humboldt near Harris (West side of top of Spruce Grove Ridge) 762 Comment
  CDA4306  Trifolium angustifolium B. Morrison 1974-7-22 Humboldt Approximately six miles east of Capetown, on Bear River Road. 0 Comment
  RSA739607  Trifolium arvense John Dittes, Josephine Guardino 2003-6-7 2003 -65 Humboldt 7.7 air SW of Orleans, 4.1 air miles NE of confluence of Trinity River and Klamath River., 0.3 air mile NW of confluence of Klamath River and Aikens Creek, along entrance road to Aikens Creek Campground. 107 Comment
  UC1103435  Trifolium barbigerum J. P. Tracy 1900-6-5 847 Humboldt immediate vicinity Eureka Comment
  UC1103437  Trifolium barbigerum J. P. Tracy 1900-6-5 842 Humboldt immediate vicinity Eureka Comment
  UC1197496  Trifolium barbigerum J. P. Tracy 1901-5-16 1092 Humboldt immediate vicinity Eureka 0 Comment
  UC162829  Trifolium barbigerum J. P. Tracy 1909-5-2 2964 Humboldt immediate vicinity Eureka 0 Comment
  UC16424  Trifolium barbigerum Harley P. Chandler May, 1901 1102 Humboldt Humboldt Bay; North Coast Ranges Comment
  HSC102625  Trifolium cyathiferum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1611 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC100530  Trifolium depauperatum Carl C. Marshall May 1887 436 Humboldt Kneeland Prairie. Comment
  UC495733  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1932-5-10 9948 Humboldt near Petrolia (Mattole River); Northern Coast Ranges 15 Comment
  HSC38929  Trifolium dubium Linda M. Barker 1976-5-13 1476 Humboldt 3 mi. W of Arcata. Comment
  UCD108860  Trifolium dubium P. B. Kennedy 1929-6-14 10323 Humboldt Eureka. Comment
  HSC99714  Trifolium eriocephalum subsp. eriocephalum Glenn W. K. Shelton 2010-7-10 14 Humboldt Due N of Buck Mtn. on FS Rd. 1N08A 1159 Comment
  POM277890  Trifolium eriocephalum subsp. eriocephalum Lyman D. Benson 1929-6-18 1732 Humboldt North of Arcata Comment
  UC33413  Trifolium eriocephalum var. eriocephalum W. C. Blasdale 1896-6-7 Humboldt Mad River Comment
  UC1223451  Trifolium fragiferum Joseph P. Tracy 1934-7-27 13490 Humboldt mouth Mad River Comment
  UC1223461  Trifolium fragiferum Joseph P. Tracy 1937-7-20 15447 Humboldt mouth Mad River Comment
  UC1562633  Trifolium fucatum Barbara Ertter with Thomas J. Delendick 1987-5-16 6932 Humboldt just w Berry Summit (Vista Point, ca 15 air mi e os Arcata, on Hwy 299) Comment
  JEPS109912  Trifolium howellii Dean W. Taylor 2006-8-3 19574 Humboldt Snow Camp Lake; un-named first-order tributary to Redwood Creek not shown on USGS map 1 mile NE of the lake. Comment
  UC1152149  Trifolium hybridum Joseph P. Tracy 1938-6-15 15926 Humboldt 2 mi s town (Field's Landing, Salmon Creek Flats, s end of bay); Humboldt Bay 6 Comment
  HSC97235  Trifolium longipes subsp. oreganum Bryan Atkinson, Jenny Lynn Hutchinson 2007-6-4 1 Humboldt About 7.4 mi. S of Hwy. 299 on FS Rd. NF1, near Cold Springs Camp 1220 Comment
  UC175678  Trifolium longipes subsp. oreganum Joseph P. Tracy 1913-6-17 4161 Humboldt Northern Coast Ranges. Buck Mountain, near summit. 1524 Comment
  UC162780  Trifolium longipes var. hansenii Joseph P. Tracy 1908-6 2919 Humboldt nw slopes Buck Mtn; Northern Coast Ranges 1219 Comment
  CHSC35554  Trifolium microcephalum James P. Smith 1973-5-26 6870 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  JEPS65952  Trifolium microcephalum W. L. Jepson 1936-8-17 17938 Humboldt near Arcata (Mad River) Comment
  HSC71464  Trifolium microcephalum J. P. Smith, J. O. Sawyer 1973-5-12 6671 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  SEINET6935126  Trifolium microdon Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC160981  Trifolium obtusiflorum Joseph P. Tracy 1908-6-8 2623 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC15222  Trifolium obtusiflorum William J. Ferlatte, B. D. Rodgers 1966-6-7 2084 Humboldt 1 mi. E of Forest Glen 732 Comment
  UC160937  Trifolium oliganthum Joseph P. Tracy 1903-5-23 1895 Humboldt Alder Point Eel River; Northern Coast Ranges 152 Comment
  UC1223329  Trifolium pratense Joseph P. Tracy 1934-8-6 13558 Humboldt near Blue Lake (along Mad River) 15 Comment
  UC165581  Trifolium repens Harley P. Chandler May, 1902 1092 Humboldt Scotia North Coast Ranges 60 Comment
  HSC96483  Trifolium repens Gordon Leppig 1997-6-19 450 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  RSA349524  Trifolium repens M. B. Dunkle 1936-8-18 4816 Humboldt South of Eureka Comment
  HSC84044  Trifolium subterraneum L. P. Janeway 1983-4-30 240 Humboldt 21 Comment
  HSC45131  Trifolium variegatum R. Sutherland 1978-6-1 3 .1678 Humboldt 213 Comment
  HSC70320  Trifolium variegatum M. A. Baker 1980-6-7 1871 Humboldt Near Ammon Creek 732 Comment
  UC160989  Trifolium variegatum var. variegatum Joseph P. Tracy 1911-7-7 3368 Humboldt 3 mi nw Junction os Wilow Creek with Trinity river (near Beebe's Ranch); Northern Coast Ranges Comment
  HSC15180  Trifolium willdenovii Eugene Andreuccetti 1964-5-2 46 Humboldt Grounds of Tish-Tang Ranger Station Comment
  JEPS4131  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1197531  Trifolium willdenovii Joseph P. Tracy 1913-6-18 4199 Humboldt opposite Buck Mtn (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen River Valley 762 Comment
  UC1223313  Trifolium willdenovii Joseph P. Tracy 1950-5-6 18640 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS66099  Trifolium wormskioldii W. H. Shockley 1879-1 Humboldt Eureka Comment
  RSA18011  Trifolium wormskioldii Carl B. Wolf 1927-8-22 782 Humboldt Big Lagoon. Comment
  UC303196  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6273 Humboldt Big Lagoon Northern Coast Region 6 Comment
  RSA168905  Trifolium wormskioldii Joseph P. Tracy 1938-7-24 16087 Humboldt Corner of Pacific and A Streets. Eureka. Comment
  CAS-BOT-BC451806  Triglochin maritima L. R. Abrams 1918-6-12 7086 Humboldt Eureka Comment
  UC1134686  Trillium albidum R. Stahelin 1933-5-17 Humboldt Arcata City Park Eureka Quad., Arcata City Park Comment
  UC175295  Trillium albidum Joseph P. Tracy 1913-6-17 4181 Humboldt near summit Buck Mt.; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC520052  Trillium albidum R. F. Freeman; J. D. Freeman 1967-5-7 581 Humboldt Humboldt County Comment
  CAS-BOT-BC519092  Trillium chloropetalum var. chloropetalum D. H. Norris 1970-5-20 12216 Humboldt At crest of ridge on Big Hill Road east of Hoopa, at streamhead. Comment
  HSC101808  Trillium kurabayashii Kjirsten A. Wayman 2012-4-1 304 Humboldt Hoopa, 0.3 miles up Bair Road, near Supply Creek 168 Comment
  HSC41250  Trillium ovatum Brad Klipfel 1974-5-27 397 Humboldt Horse Mtn. Comment
  HSC48827  Trillium ovatum Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 27 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  JEPS47248  Trillium ovatum Lincoln Constance 1934-6-2 794 Humboldt Bull Creek road to mouth of Bull Creek and up Bull Creek; S. Fork Eel River, Bull Creek Region Comment
  CAS-BOT-BC133395  Trillium ovatum Doris K. Kildale 1926-3-25 1630 Humboldt Foot of Liscom Hill near Essex 30 Comment
  UC1334892  Triphysaria eriantha subsp. eriantha L. D. Thurman 1965-5-2 669 Humboldt along the roadside of U.S. #101 at the Little River turnoff Comment
  POM207185  Trisetum canescens Joseph P. Tracy 1901-6-23 1167 Humboldt Immediate vicinity of Eureka. 0 Comment
  RSA10081  Trisetum canescens Joseph P. Tracy 1926-6-6 7557 Humboldt Northern Coast Ranges, Hoopa Mountain, near summit on road west from Hoopa to Bair's. 1067 Comment
  RSA22685  Trisetum canescens Joseph P. Tracy 1935-5-24 13814 Humboldt Eureka Comment
  UC1133274  Trisetum canescens H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad. 0 Comment
  HSC39398  Trisetum cernuum D. E. Anderson, J. P. Smith 1971-6-28 - 1252 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC91881  Trisetum cernuum E. Mackey 1986-10-7 Humboldt Partick's Point State Park. Comment
  UC187230  Trisetum flavescens J. P. Tracy 1911-7-12 3527 Humboldt Blue Lake 60 Comment
  SEINET200770  Triteleia laxa Joseph P. Tracy 1927-5-30 8094 Humboldt Garberville 152 Comment
  CAS-BOT-BC526351  Triteleia laxa Joseph P. Tracy 1941-6-15 16911 Humboldt Wilder Ridge, opposite King's Peak 762 Comment
  RSA36387  Triteleia laxa E. K. Balls, Lee W. Lenz 1956-6-12 21663 Humboldt 23 miles southwest of Willow Creek along U.S. Highway 299 toward Arcata 640 Comment
  UC422834  Triteleia laxa P. E. Goddard 1907-5-29 b. 110 Humboldt Van Duzen Comment
  CAS-BOT-BC85892  Tsuga heterophylla C. B. Wolf 1930-10-25 1019 Humboldt Along the Blue Lake to Willow Creek road (Lord Ellis Road), 12 mi. above Blue Lake 304 Comment
  CAS-BOT-BC85895  Tsuga heterophylla G. A. Coleman 1901-7-20 s.n. Humboldt Near Acorn Comment
  RSA134598  Tsuga heterophylla P. C. Everett, E. K. Balls 1959-10-25 23963 Humboldt 22 miles west from Willow Creek along US Highway 299 to Arcata. 579 Comment
  UC1585364  Tsuga heterophylla R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 Humboldt e of Arcata (on Hwy 299, 28 km e of Hwy 101); Hwy 299 360 Comment
  UC1196283  Umbellularia californica Joseph P. Tracy 1920-10-24 5405 Humboldt North Fork of Mad River, at Camp Bauer North Fork of Mad River; Northern Coast Ranges, North Fork of Mad River 60 Comment
  RSA701676  Umbellularia californica J. R. Bruff 1930-08 s.n. Humboldt Roadside North of Trinidad California Comment
  SEINET12104679  Umbellularia californica E. A. York 1990-1-10 2667 Humboldt USGS Redwood Field Station, Arcata Comment
  POM160273  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt Around Humboldt Bay. Elk River Valley. 30 Comment
  HSC24098  Vaccinium cespitosum J. O. Sawyer 1971-6-14 2379 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  UC22192  Vaccinium cespitosum J. P. Tracy 1899-3 Humboldt Eureka Comment
  CAS-BOT-BC199319  Vaccinium ovatum L. B. Kildale 1930-9-9 10408 Humboldt Bald Mountain 914 Comment
  CAS-BOT-BC199326  Vaccinium ovatum H. E. Parks; S. T. Parks 1937-4-1 5638 Humboldt Spruce Cove, Trinidad Comment
  HSC7907  Vaccinium ovatum J. Pursell 1964-10-11 10112 Humboldt Old Hwy. 101, 3 mi. N Patricks Point State Park Comment
  HSC7915  Vaccinium ovatum D. E. Anderson 1961-8-11 1733 Humboldt Redwood preserve E of HSU campus 30 Comment
  POM232033  Vaccinium ovatum I. L. Wiggins 1930-6-25 4613 Humboldt Sand dunes 2 miles north of Samoa. Comment
  UC1193355  Vaccinium ovatum P. Zinke 1950-9-21 165 Humboldt se slope Kerr Peak (Quad 29C2) 609 Comment
  UCD166926  Vaccinium ovatum Colleen Rossier 2016-9-19 10 Humboldt In vicinity of Fish Lake, plot Fish Lake #2. 541 Comment
  CAS-BOT-BC199424  Vaccinium parvifolium Doris K. Kildale 1927-3-14 1533 Humboldt Southern approach to Blue Slide on old Bridgeville road. Van Duzen River Comment
  UC1197780  Vaccinium parvifolium Joseph P. Tracy 1931-4-26 9341 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  HSC71796  Vancouveria hexandra Gail Newton 1980-6-16 171 Humboldt Near Monks Camp. 1097 Comment
  UC1537345  Vancouveria hexandra Gordon H. True Jr. 1936-5-12 470 Humboldt 5 mi s Kneeland; s of Kneeland 457 Comment
  JEPS33026  Vancouveria hexandra W. L. Jepson 1902-6 1912 Humboldt Pepperwood; beneath redwoods Comment
  SEINET12094119  Vancouveria hexandra F. H. Utech 1988-1 88 -269 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  UC527825  Vancouveria hexandra Ira L. Wiggins 1932-6-12 5865 Humboldt 2 mi e Bayside (bank of Jacoby Creek); bank of Jacoby Creek Comment
  CAS-BOT-BC76093  Vancouveria planipetala M. S. Jussel 1931-5-2 113 Humboldt Garberville. Comment
  HSC44512  Vancouveria planipetala Brad Klipfel 1973-7-1 122 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS33028  Vancouveria planipetala W. L. Jepson 1934-5-7 16695 Humboldt Bull Creek Comment
  CAS-BOT-BC76091  Vancouveria planipetala Clarence R. Quick 1959-7-24 59 -36 Humboldt Bee Mountain, ca. 12 miles southwest of Orleans. Comment
  UCD95098  Vancouveria planipetala H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  CAS-BOT-BC391321  Velezia rigida Harley P. Chandler 1901-6-1 1306 Humboldt North Coast Ranges. Hupa Indian Reservation 152 Comment
  UC8778  Velezia rigida Harley P. Chandler June, 1901 1306 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC176191  Veratrum californicum var. californicum Joseph P. Tracy 1912-6-16 3695 Humboldt between Fields Landing and Salmon Creek (at the Still place); Humboldt Bay Region 0 Comment
  UC1225851  Veratrum insolitum Joseph P. Tracy 1948-9-12 18213 Humboldt 1 mi w Box Camp; Trinity Summit 1371 Comment
  HSC98070  Verbascum thapsus Cara Witte 2007-7-12 528 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  CDA30233  Verbena lasiostachys M. K. Beyers, I. Shepardson 2009-9-13 240 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
  HSC21737  Verbena lasiostachys D. E. Anderson 1963-10-6 2880 Humboldt Mad River bed, across from Essex Junction. Comment
  HSC55335  Veronica americana Terry Griswold, Marvin Butler 1979-7-12 7179 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  UC147878  Veronica americana Joseph P. Tracy 1908-6 2718 Humboldt Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges 762 Comment
  HSC98564  Veronica arvensis Cara Witte 2008-6-13 723 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  RSA0049599  Veronica hederifolia var. triloba Dean Wm. Taylor 2013-5-8 21405 Humboldt Arcata, about the grounds of the Masonic Lodge, on Bayside road east of Highway 101 21 Comment
  UC1537113  Vicia americana var. americana Gordon H. True Jr. 1936-5-11 463 Humboldt 12 mi w Miranda (e slope of Elk Ridge); Elk Ridge 457 Comment
  UC1222588  Vicia hirsuta Joseph P. Tracy 1950-6-17 18835 Humboldt Eureka Comment
  PASA271  Vicia sativa Frank W. Peirson 1926-7-13 Humboldt Mad River, vicinity of Blue Lake Comment
  UC1197473  Vicia sativa subsp. nigra J. P. Tracy 1901-5-21 1102 Humboldt immediate vicinity Eureka 0 Comment
  CHSC35677  Vicia sativa subsp. sativa James P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SD131841  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt Hwy 299 roadside ca 8 miles east of Arcata, 9 1/2 mi. West of Lord Ellis summit Comment
  HSC89689  Vicia villosa subsp. varia Robin Bencie, James Jones, Rich Dwerlkotte 1989-4-28 15 Humboldt Along Hwy. 299, near Korbel, 7.5 mi. E of Hwy. 101 122 Comment
  HSC104036  Vicia villosa subsp. villosa E. R. Fyer 2015-4-26 22 Humboldt At turnout off Samoa Blvd., at railroad bridge 3 Comment
  CAS-BOT-BC263942  Viola adunca Mrs. H. C. Cantelow 1941-4-26 s.n. Humboldt 12 miles SW of Ferndale, on road to Cape Mendocino Comment
  HSC100915  Viola blanda Carl C. Marshall Jun 1886 312 Humboldt Trinity Summit. Comment
  HSC31194  Viola cuneata D. E. Anderson 1972-6-20 5749 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC85894  Viola cuneata Barry Silver 1986-4-13 512 Humboldt Bair Road, 6.4 mi. WSW of Hoopa Comment
  HSC98620  Viola cuneata Cara Witte 2008-5-26 657 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 5N10. 1457 Comment
  POM161057  Viola cuneata Joseph P. Tracy 1926-6-6 7560 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  CAS-BOT-BC536492  Viola glabella Henry M. Pollard 1948-7-18 s.n. Humboldt Near Orleans Comment
  UC35267  Viola glabella W. C. Blasdale 1896-6-5 Humboldt Fitzgerald's Comment
  HSC74380  Viola hallii M. A. Baker 1980-6-28 2480 Humboldt Near Mad River Buttes 1445 Comment
  RSA21092  Viola hallii Carl B. Wolf 1937-6-14 8820 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  UC35284  Viola ocellata Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  HSC49693  Viola sempervirens J. O. Sawyer 1977-4-23 2842 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  SEINET200802  Viola sempervirens J. P. Tracy 1904-4-3 2006 Humboldt Eureka 0 Comment
  HSC95748  Viola sempervirens Kevin Thomas 2004-3-13 2 Humboldt Arcata Community Forest, Jolly Giant Creek diversion dam Comment
  SEINET11994159  Viola sempervirens N. H. Russell 1967-1 67 -12 Humboldt James Irvine grove of redwoods, US 101, N of Orick Comment
  UC34984  Vitis californica Chesnut and Drew 1888-7-25 Humboldt Hy-Am-Pom Comment
  CAS-BOT-BC199802  Vulpia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC198762  Vulpia bromoides Doris K Niles 1950-6-1 5 Humboldt Island in Eel River, Niles field. Comment
  HSC22841  Vulpia microstachys D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt 3 mi. W of Willow Creek along Three Creeks Rd. Comment
  HSC97933  Vulpia microstachys var. ciliata Cara Witte 2007-6-19 298 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  SEINET200354  Vulpia microstachys var. pauciflora J. P. Tracy 1919-5-31 5161 Humboldt W side Trinity River; near Willow Creek 153 Comment
  HSC9923  Vulpia myuros R. D. Modafferi 1965-5-13 72 Humboldt 1.6 mi. N of Trinidad on Trinity St. 305 Comment
  UCD94899  Vulpia myuros A. H. Murphy 1951-5-15 35 Humboldt Foster Ranch, 3 miles west of Miranda. Comment
  CAS-BOT-BC128811  Whipplea modesta Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  HSC103290  Whipplea modesta Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3013 Humboldt Six Rivers National Forest; ~ 1.75 mi. south of Hwy. 299 on Titlow Hill Road; ~ 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 979 Comment
  HSC31566  Whipplea modesta Glenn McGourty 1974-5-11 36 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC41290  Whipplea modesta Brad Klipfel 1974-7-27 488 Humboldt Horse Mtn. Comment
  HSC44524  Whipplea modesta Brad Klipfel 1973-7-1 132 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC492216  Whipplea modesta Joseph P. Tracy 1927-8-28 8360 Humboldt Boynton Prairie Northern Coast Ranges 609 Comment
  UC62449  Woodwardia fimbriata Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5437 Humboldt near Elk Prairie Comment
  CAS-BOT-BC382916  Wyethia angustifolia Joseph P. Tracy 1935-6-23 13988 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC382929  Wyethia angustifolia Doris K. Kildale 1927-7-1 3614 Humboldt Alton Hill 30 Comment
  HSC71670  Wyethia angustifolia M. A. Baker 1980-6-26 2382 Humboldt Near Sims Creek 610 Comment
  UC419036  Wyethia longicaulis H. E. Parks May 1930 740 Humboldt Laribee Valley Comment
  JEPS37537  Xanthium strumarium Lincoln Constance 1934-6-12 865 Humboldt n bank South Fork Eel River (Dyerville, Bull Creek Road, Bull Creek Region); n bank South Fork Eel River, Bull Creek Region, Dyerville Comment
  UC673077  Xanthium strumarium Joseph P. Tracy 1940-10-5 16747 Humboldt Trinidad 3 Comment
  HSC15736  Xerophyllum tenax D. E. Anderson 1965-6-1 3774 Humboldt On ridge along Friday Hill Rd., about 2 mi. from its junction with Titlow Hill Rd. 1159 Comment
  HSC72906  Xerophyllum tenax M. A. Baker 1980-6-16 1951 Humboldt Near Onion Mtn. 1280 Comment
  HSC21901  Zannichellia palustris D. E. Anderson 1961-9-2 1760 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC12015  Zeltnera muehlenbergii Wilbur Peterson 1970-10-31 102 Humboldt Scotia Bluffs, edge of Eel River Comment
  HSC79498  Zeltnera muehlenbergii Kenneth Clark 1979-7-1 454 Humboldt Shelter Cove, Dead Man's Gulch 9 Comment
  HSC73063  Zigadenus micranthus M. A. Baker 1980-6-16 1959 Humboldt Near Onion Mtn. 1280 Comment
  UC146216  Zigadenus micranthus var. micranthus Joseph P. Tracy 1908-6 2779 Humboldt nw slope Buck Mountain; Northern Coast Ranges, nw slope Buck Mountain 609 Comment



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