Search Results — 2000 specimen records retrieved (1367 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
  CAS-BOT-BC77928  Abies G. A. Coleman 1901-7-26 s.n. Humboldt Near Acorn Comment
  HSC55121  Abies concolor G. L. Clifton, Griswold 1979-8-1 11916 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC55164  Abies concolor Gilbert Muth 1979-8-1 12146 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC99538  Abies concolor K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 203 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1204915  Abies concolor Joseph P. Tracy 1948-9-5 18202 Humboldt Little Hors-Linto Creek Trinity Summit (head) 1371 Comment
  CAS-BOT-BC78059  Abies grandis Doris K. Kildale 1927-5-13 3128 Humboldt Green Point, Redwood Creek road Comment
  UC336764  Abies grandis unknown 1901-9-1 Humboldt Eureka Comment
  HSC37503  Abronia umbellata var. breviflora J. D. Ackerman 1975-8-2 624 Humboldt N Spit of Humboldt Bay, 0.25 mi. N of N Jetty, U.S. Coast Guard Station Comment
  CDA40632  Acaena novae-zelandiae E. C. Whitney 1966-7-28 s.n. Humboldt Mather prop., Simpson Lumber Co., Fieldbrook. 0 Comment
  CAS-BOT-BC330541  Acer circinatum Doris K. Kildale 1927-5-13 3134 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC330547  Acer circinatum Joseph P. Tracy 1928-5-6 8427 Humboldt North Coast Ranges. Willow Creek Canyon 609 Comment
  POM87959  Acer circinatum L. R. Abrams 1922-6-27 8298 Humboldt Prairie Creek, 4 miles north of Orick Comment
Read comments
Feb 25 2015
  UC35021  Acer circinatum Chesnut and Drew 1888-5 Humboldt Arcata Comment
  HSC100649  Acer circinatum Carl C. Marshall 1886-1 345 Humboldt Near North Fork Grove. Comment
  SD42321  Acer glabrum Carl B. Wolf 1937-9-13 93360 Humboldt Clear Lake between Horse Mtn. and Grouse Mtn. 1525 Comment
  CAS-BOT-BC330606  Acer glabrum var. glabrum Carl B. Wolf 1937-9-13 9336 Humboldt North Coast Range, Clear Lake between Horse Mt. & Grouse Mt. 1524 Comment
  HSC2817  Acer macrophyllum D. E. Anderson 1962-3-17 1933 Humboldt 3 mi. W of Bridgeville along Hwy. 36 Comment
  UC165821  Acer macrophyllum J. P. Tracy 1906-4-15 2403 Humboldt moist bottom lands on Mad River near Blue Lake; on Mad River near Blue Lake 30 Comment
  SEINET10905087  Achillea Mary Susan Taylor 1982-10-24 Taylor 5173 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  CAS-BOT-BC28588  Achillea millefolium David D. Keck 1938-8-5 4765 Humboldt Clam Beach Comment
  HSC102524  Achillea millefolium M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1511 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC581787  Achillea millefolium Joseph P. Tracy 1933-5-20 12230 Humboldt s of point of the cape near ocean shore Cape Mendocino 3 Comment
  UCSB15405  Achillea millefolium 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC90327  Achillea millefolium Jean Hanson 1980-6-22 105 Humboldt Indian (Gunther) Island, Humboldt Bay, City of Eureka, W end of island Comment
  UC166084  Achillea millefolium Joseph P. Tracy 1911-7-6 3357 Humboldt along road toward mouth of Willow Creek, mountain slopes Three Creeks; Northern Coast Ranges 762 Comment
  UC275314  Achlys californica Joseph P. Tracy 1924-5-4 6673 Humboldt Grizzly Creek on Van Duzen R. Van Duzen R., Grizzly Creek 91 Comment
  CAS-BOT-BC400022  Achlys triphylla Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC210652  Achnatherum lemmonii Joseph P. Tracy 1933-5-20 12247 Humboldt Mattole Valley 152 Comment
  UCD50519  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt Halfway between Snow Camp and Twin Lakes (at Preston's old gate near road). Humboldt County. Comment
  UCD50691  Achnatherum lemmonii A. H. Murphy 1951-6-25 74 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  HSC98308  Acmispon micranthus D. B. Bader 1963-3-1 22 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  CAS-BOT-BC412847  Aconogonon davisiae Joseph P. Tracy 1935-7-30 14383 Humboldt Salmon Summit 2103 Comment
  UCD98796  Aconogonon phytolaccifolium P. B. Kennedy 1925-8-29 s.n. Humboldt Eureka. Comment
  POM312840  Acorus calamus Malcolm A. Nobs, S. Galen Smith 1949-8-9 1242 Humboldt Marshy pond on south side of the town of Blue Lake. Comment
  CAS-BOT-BC62291  Adiantum aleuticum Carl B. Wolf 1927-8-28 1170 Humboldt On grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  CHSC21826  Adiantum aleuticum D. Joley 1967-8-17 Humboldt Found 10 mi e of Fortuna. Comment
  HSC953  Adiantum aleuticum Gene S. Van Horn 1962-5-20 24 Humboldt 0.5 mi. S of large quarry, 200 yards S of Jacoby Creek 46 Comment
  RSA67622  Adiantum aleuticum P. A. Munz 1951-7-15 16547 Humboldt Racoon Creek. 305 Comment
  RSA687733  Adiantum aleuticum Anstruther Davidson 1923-10-8 17061 Humboldt Near Bridgeville Comment
  UC62707  Adiantum jordanii Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5729 Humboldt Supply Creek Comment
  SEINET3868471 Image available Adiantum pedatum var. aleuticum Dan O'Brien 1962-5-19 s.n. Humboldt 2 1/2 mi e. of Bayside on Jacoby Creek.; 0 Comment
  CAS-BOT-BC202610  Aesculus californica L. R. Abrams 1916-7-10 5965 Humboldt Between Harris and Alder Pt. Comment
  HSC32125  Agoseris grandiflora D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5586 Humboldt Mount Lassic and 2 smaller peaks to immediate east 1768 Comment
  HSC44088  Agoseris grandiflora Thomas W. Nelson, Jane P. Nelson 1977-9-3 3723 Humboldt N of Alder Springs 1555 Comment
  HSC4594  Agoseris grandiflora D. E. Anderson 1962-7-14 2257 Humboldt Along Barry Ridge Rd. Comment
  UC1222937  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-6 19024 Humboldt 3 mi s, sw slopes of Buck Mt Burr Valley; Buck Mountain 1066 Comment
  UC1239511  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1934-6-27 13261 Humboldt Near Cold Springs; North Coast Ranges, Grouse Mountain. 1432 Comment
  HSC99060  Agoseris heterophylla Cara Witte 2007-5-23 89 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  SD41382  Agoseris heterophylla Edith A. Purer 1932-7-30 4681 a Humboldt South of Orick Comment
  SEINET6998444  Agoseris heterophylla Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  POM126127  Agoseris hirsuta Joseph P. Tracy 1923-6-20 6316 Humboldt White Thorn Valley 305 Comment
  CAS-BOT-BC384739  Agrostemma githago Doris K. Kildale 1926-5-31 2018 Humboldt Miranda on South Fork of Eel River Comment
  HSC35452  Agrostis capillaris J. D. Ackerman 1975-8-2 602 Humboldt Intersection of Indianola Cutoff and US Hwy 101. 3 Comment
  RSA249712  Agrostis capillaris R. F. Thorne, P. Everett 1965-8-8 35247 Humboldt N edge of Eureka, E of Hwy in weedy land-fill 5 Comment
  UCD51876  Agrostis capillaris var. aristata A. H. Murphy 1947-6-20 s.n. Humboldt Tooby and Prior Ranch, near Blocksburg. Comment
  RSA152379  Agrostis densiflora Joseph P. Tracy 1936-6-8 14873 Humboldt Trinidad 6 Comment
  UC1145066  Agrostis densiflora Joseph P. Tracy 1938-8-28 16136 Humboldt clay bluff facing ocean Stone Lagoon 6 Comment
  CAS-BOT-BC127251  Agrostis exarata Harley P. Chandler 1901-6-1 1512 Humboldt North Coast Ranges. Klamath River. 426 Comment
  RSA10026  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Three Cabins; Chaparral Mountain Comment
  RSA152376  Agrostis exarata Joseph P. Tracy 1947-6-28 17749 Humboldt Larrabee Valley 732 Comment
  RSA25802  Agrostis exarata C. B. Wolf 1941-7-28 4344 Humboldt Big Lagoon, south side and W. of Redwood Highway. 6 Comment
  UC1103380  Agrostis exarata Joseph P. Tracy 1935-7-27 14282 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1607846  Agrostis exarata Harold E. Parks 1935-6-1 5687 Humboldt Spruce Cove Trinidad district 64 Comment
  UC191415  Agrostis exarata Joseph P. Tracy 1902-7-4 1757 Humboldt Eureka Northern Coast Region 0 Comment
  HSC64758  Agrostis gigantea Bruce Gordon 1978-8-4 122 Humboldt Redwood National Park, about 0.15 mi. NW of junction of Bald Hills Rd. and K & K Rd., in Lyon's Prairie. 774 Comment
Read comments
Jan 26 2016
  HSC98744  Agrostis gigantea Cara Witte 2007-7-12 522 Humboldt Forest Service Road 5N10. Approximately 3 miles from intersection with Ammon Ridge Road. 1306 Comment
  RSA129594  Agrostis hallii H. S. Yates 1936-6-17 5689 Humboldt 1 mile W of Bridgeville 183 Comment
  SEINET201012  Agrostis hallii Joesph P Tracy 1908-7-30 2882 Humboldt Van Duzen River opposite buck mountain Comment
  SEINET3916558  Agrostis hallii James Payne Smith Jr 1977-7-3 9257 Humboldt Six River National Forest. Along Forest Service Road 13NO1, 3 miles from its junction with State Route 36.; 0 549 Comment
  UCD52719  Agrostis hallii Joseph P. Tracy 1938-7-4 15983 Humboldt valley of South Yager Creek. 762 Comment
  RSA10019  Agrostis idahoensis Joseph P. Tracy 1932-7-16 10608 Humboldt Klamath Mtns., Trinity Summit, Corral Prairie 1524 Comment
  UC526876  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8933 Humboldt in wet meadow at McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC96541  Agrostis pallens Gordon Leppig 1997-8-3 645 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UCD53145  Agrostis pallens R. Tofsrud 1948-1 s.n. Humboldt Clear Lake, road from Horse Mt. to Grouse Mt. 1371 Comment
  CAS-BOT-BC138633  Agrostis stolonifera David D. Keck 1938-8-5 4771 Humboldt Big Lagoon. Comment
  UCD53503  Agrostis stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-3 1168 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  UCD56339  Agrostis stolonifera A. H. Murphy 1947-7-30 s.n. Humboldt 1.2 mile west of Hydesville, along the Rohnerville Road. Comment
  UC526890  Agrostis viridis Joseph P. Tracy 1926-7-4 7697 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  BLMAR32  Aira caryophyllea Brad Barr June, 1982 32 Humboldt King range, Lake Ridge near pond Comment
  HSC8855  Aira caryophyllea N. R. Waite 1965-5-19 41 Humboldt W edge of Humboldt State University campus. Comment
  UC37074  Aira caryophyllea Harley P. Chandler May, 1901 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC630529  Aira caryophyllea H. E. and S. T. Parks June, 1936 5850 Humboldt Spruce Cove Trinidad Comment
  UCD55700  Aira caryophyllea Joseph P. Tracy 1950-6-15 18814 Humboldt near Huestis Rock, on Harris Road, 6 miles southeast of Fruitland. 914 Comment
  HSC60371  Alisma triviale Terry Roth 1979-5-29 101 Humboldt Arcata, at the end of H St. 0 Comment
  HSC102513  Allium amplectens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1499 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  SEINET7879021 Image available Allium amplectens C. C. Harris, S. K. Harris 1936-1 645 Humboldt On sand and gravel on river bank at point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River, 2330 feet altitude, Humboldt County, California. 710 Comment
  UC275545  Allium bolanderi Joseph P. Tracy 1923-6-26 6377 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, Koby's Ranch); Northern Coast Ranges, Brannan Mountain, Koby's Ranch 762 Comment
  HSC98507  Allium bolanderi var. bolanderi Cara Witte 2007-7-8 433 Humboldt Board Camp Mountain. Pack trail 4E26. 1491 Comment
  UC146211  Allium bolanderi var. mirabile Joseph P. Tracy 1908-6 2771 Humboldt opposite Buck Mountains; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  CHSC110705  Allium falcifolium Dean Wm. Taylor 2004-6-24 19134 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit; Grouse Mountain. 1310 Comment
  HSC82040  Allium falcifolium Thomas W. Nelson, James Nelson 1980-6-10 5407 Humboldt Along Swayback Ridge 4-wheel drive rd. 2.5 mi. N of the junction with USFS rd. 1S07 1463 Comment
  HSC32893  Allium hoffmanii Thomas W. Nelson 1973-5-30 977 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  HSC2941  Allium triquetrum D. V. Sanford 1963-4-27 48 Humboldt Near old mill behind HSC campus Comment
  UC666923  Allium unifolium Joseph P. Tracy 1927-6-8 8119 Humboldt on coast bluffs s Luffenholz Creek; Trinidad 30 Comment
  HSC57903  Allium validum Gilbert Muth 1979-7-31 11499 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC100703  Allocarya diffusa Carl C. Marshall Jun 1887 465 Humboldt Harris and Garberville Rd. Comment
  RSA249506  Allotropa virgata R. F. Thorne, P. C. Everett, K. Thorne 1965-8-5 35132 b Humboldt Wailaki Recreation Site. 610 Comment
  CAS-BOT-BC171311  Alnus incana subsp. tenuifolia Milo S. Baker 1927-8-21 2487 a Humboldt Brush Mt. 914 Comment
  RSA174010  Alnus rhombifolia R. F. Thorne 1957-9-2 18991 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  RSA46862  Alnus rhombifolia Doris K. Kildale 1926-9-9 2686 Humboldt Little Van Dusen, near bridge on Bridgeville, Low Gap Road. 640 Comment
  HSC3394  Alnus rubra J. W. Johnson 1961-9-4 1088 Humboldt Along Lanphere Lane near the swamp, Samoa Peninsula Comment
  UCD170775  Alnus rubra Gordon Leppig 1998-3-25 724 Humboldt McKinleyville, Central Ave. South-bound lane near 101 junction. 42 Comment
  SEINET201016  Alnus viridis subsp. sinuata J. P. Tracy 1947-8-24 17913 Humboldt Trinity Summit near Box Camp 1524 Comment
  UC1103316  Alopecurus aequalis Joseph P. Tracy 1924-8-31 6851 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges, Klamath R. 91 Comment
  UC184154  Alopecurus aequalis Joseph P. Tracy 1912-7-31 3904 Humboldt n.w. slope Buck Mt.; Northern Coast Ranges, Burr Valley, Buck Mt. 1066 Comment
  UCD55838  Alopecurus aequalis Joseph P. Tracy 1950-7-6 19019 Humboldt Buck Mountain, 3 miles south of Burr Valley. 1158 Comment
  UCD55925  Alopecurus saccatus Beecher Crampton 1953-5-14 1264 Humboldt 1.5 mile south of Walsh Station. Comment
Read comments
May 18 2016
  CAS-BOT-BC13710  Ambrosia chamissonis Carl B. Wolf 1927-8-29 1213 Humboldt Devil's Gate, south of Cape Mendocino. Comment
  SDSU19194  Amelanchier alnifolia var. semiintegrifolia Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3011 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. 0.3 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1426 Comment
  HSC32334  Amelanchier pallida D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5617 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC1198748  Amelanchier utahensis Joseph P. Tracy 1932-7-18 10719 Humboldt Head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  OBI65609  Ammophila arenaria G. Douglas Barbe, T. C. Fuller, Hrusa 2-2000 1974-6-19 1881 Humboldt North Coast Ranges. Mad River mouth, beach S of river, at end of Iversen Ln, Tyee City Comment
  SEINET200930  Ammophila arenaria J. P. Tracy 1918-7-28 5087 Humboldt Humboldt Bay particularly Samoa Comment
  HSC8841  Ammophila arenaria J. W. Bosworth 1965-5-20 54 Humboldt .25 mi. S of Samoa on the Samoa Rd. Comment
  SEINET10468276  Ammophila arenaria Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2504 Humboldt Collected in the vicinity of a state park on the beach opposite McKinleyville. Vast colony of yellow Lupinus arboreus. 3 Comment
  UC525582  Amsinckia intermedia Joseph P. Tracy 1932-5-17 10097 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  CHSC27929  Anaphalis margaritacea M. S. Taylor 1975-4-12 466 Humboldt Ca. 2000 yds E of Hwy 101, in Orick, by RR tracks. Comment
  HSC4616  Anaphalis margaritacea Roxana S. Ferris 1937-8-21 9387 Humboldt Shelter Cove 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
  HSC98655  Anaphalis margaritacea Cara Witte 2007-7-26 596 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1438 Comment
  SBBG19484  Anaphalis margaritacea J. A. Lowery -Aug-1962 27 Humboldt Willow Crk, ca. 30 mi E of Eureka 457 Comment
  HSC4618  Anaphalis margaritacea J. Rockwell 1962-11-12 151 Humboldt Near Coast Guard Station Comment
  SJSU874  Anemone deltoidea A. C. Browne Sr. 1945-5-23 Humboldt Myers Flat Comment
  UC503041  Anemone oregana Joseph P. Tracy 1928-4-1 8408 Humboldt n end Big Lagoon; Nort Coast Region 152 Comment
  HSC47958  Anemone oregana var. oregana Brad Klipfel 1975-5-24 626 Humboldt Horse Mtn. Comment
  HSC56060  Angelica arguta G. L. Clifton, Griswold 1979-7-31 11697 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1051575  Angelica genuflexa Joseph P. Tracy 1948-9-12 18206 Humboldt Trinity Summit, at Box Camp Trinity Summit; , Box Camp 1463 Comment
  BLMAR662  Angelica hendersonii Jennifer Wheeler 2012-7-12 662 Humboldt King range, Strawberry rock 253 Comment
  UC642306  Angelica hendersonii Joseph P. Tracy 1938-8-28 16134 Humboldt Trinidad 3 Comment
  UC126727  Angelica lucida John Matthiesen 1908-8-17 Humboldt Loleta Comment
  CAS-BOT-BC77290  Antennaria microphylla Joseph P. Tracy 1935-7-24 14169 Humboldt Trinity Summit, near ranger station 1828 Comment
  UC582649  Antennaria rosea Joseph P. Tracy 1935-7-24 14169 Humboldt Trinity Summit (near Ranger Station) Trinity Summit 1828 Comment
  HSC75434  Anthoxanthum occidentale J. O. Sawyer, M. Erickson 1979-7-15 3413 Humboldt Adroni Research Natural Area, slopes along Aikins Creek 457 Comment
  CAS-BOT-BC137741  Anthoxanthum odoratum Harley P. Chandler 1901-5-1 1106 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  HSC38313  Anthoxanthum odoratum Peter Sorensen 1976-6-2 Humboldt North Spit Comment
  HSC5264  Anthoxanthum odoratum John Warner Hosking 1966-5-8 Humboldt Arcata bottomland, Arcata Comment
  RSA311304  Anthoxanthum odoratum R. F. Thorne, P. Everett 1956-8-8 35256 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  UC1103319  Anthoxanthum odoratum J. P. Tracy 1899-5-24 318 Humboldt immediate vicinity of Eureka 0 Comment
  UC1196740  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1925-7-12 7203 Humboldt w of South Fork of Trinity River mouth 304 Comment
  UC213319  Apocynum androsaemifolium Joseph P. Tracy 1919-9-23 5280 1/2 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC162852  Aquilegia formosa Joseph P. Tracy 1908-6 2739 Humboldt nw slope of Buck Mountain Northern Coast Ranges 762 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
  UC1198307  Arabis glabra Joseph P. Tracy 1911-7-12 3522 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC98725  Arabis subpinnatifida Cara Witte 2007-5-23 93 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  CAS-BOT-BC167257  Aralia californica Paul F. Covel 1939-8-7 1638 Humboldt Mather Memorial Grove Comment
  JEPS40071  Aralia californica Lincoln Constance 1934-5-29 740 Humboldt n. bank Bull Creek opposite Squaw Creek; Bull Creek Region, W. Fork Eel R. Comment
  JEPS44156  Arctium minus W. L. Jepson 1936-8-12 17888 Humboldt Philipsville South Fork Eel River Comment
  UC585947  Arctostaphylos Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge 1066 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-BC24093  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast range Horse Mt. 1524 Comment
  CAS-BOT-BC23908  Arctostaphylos canescens subsp. sonomensis Walter Knight; Irja Knight 1988-9-4 s.n. Humboldt Horse Mountain Recreation Area. On embankment between Summit Road junction and electronic towers at summit. Comment
  HSC98604  Arctostaphylos canescens subsp. sonomensis Cara Witte 2008-6-4 676 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  RSA20914  Arctostaphylos canescens var. candidissima C. B. Wolf 1937-8-13 9229 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC23727  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13139 Humboldt Vicinity of Trinidad 60 Comment
  HSC33254  Arctostaphylos columbiana Thomas W. Nelson 1975-3-20 1750 Humboldt Along Kneeland Rd. just S of its junction with Maple Creek Rd. Losey property. 671 Comment
  RSA622688  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27676 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
  SBBG5510  Arctostaphylos columbiana M. J. Cody 1938-7-15 Humboldt Trinidad Comment
  UC1121466  Arctostaphylos columbiana A. E. Wieslander 1939-9-2 994 Humboldt 2 mi sw Big Lagoon (17 mi s of Orick); Rocky Pt. Quadrangle 7 Comment
  UC1198652  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6143 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC1198661  Arctostaphylos columbiana Joseph P. Tracy 1928-3-4 8403 Humboldt Miranda South Fork of Eel River 121 Comment
  UC484049  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1784 Humboldt Old Coast Rd 7 mi s Honeydew P.O. 304 Comment
  UC718361  Arctostaphylos columbiana Carl B. Wolf 1934-7-2 5904 Humboldt 4 mi from Snow Camp (on road to Bald Mt.); Mts. E. of Korbel Comment
  CAS-BOT-BC23737  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Van duzen - Mad River ridge Comment
  RSA81544  Arctostaphylos columbiana var. tracyi E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-11 18626 Humboldt 0.1 mi. N of Humbolt-Mendecino Co. line, Hwy 101. 168 Comment
  UC1052839  Arctostaphylos glandulosa subsp. glandulosa W. L. Colwell 1955-6-7 26 Humboldt one half mi n Grasshopper Mountain lookout (three mi w of Weott); Quad. 29-B-3 914 Comment
  UC1120196  Arctostaphylos glandulosa subsp. glandulosa G. T. Nordstrom Jul 1937 1427 Humboldt 10.5 mi ene Orick; Orick Quadrangle Comment
  UC585933  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13331 Humboldt ridge 5 mi s Harris (on road towards Bell Springs); North Coast Ranges 762 Comment
  RSA632803  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27761 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  HSC48756  Arctostaphylos manzanita Brad Klipfel 1973-6-10 72 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA633014  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27807 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  RSA633023  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 s.n. Humboldt Highway 96, 15 km north of Willow Creek. 100 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-BC45881  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  HSC49996  Arctostaphylos nevadensis M. A. Baker 1979-6-7 781 Humboldt 610 Comment
  HSC54510  Arctostaphylos nevadensis Overton, Butler 1979-7-23 9416 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  JEPS38940  Arctostaphylos nevadensis Joseph P. Tracy 1932-7-18 10722 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  CAS-BOT-BC40027  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  SEINET11989057  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1179 Humboldt 21.4 mi E of US 101 on Bald Hills Rd (from Orick), French Camp Ridge Comment
  HSC98798  Arctostaphylos nevadensis subsp. nevadensis Cara Witte 2008-6-4 684 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1232 Comment
  HSC40550  Arctostaphylos patula Thomas W. Nelson, Jane P. Nelson 1976-5-23 2524 Humboldt SW facing slopes 1666 Comment
  UC1198667  Arctostaphylos patula Joseph P. Tracy 1942-9-6 17313 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC21843  Arctostaphylos patula J. Burtt Davy 1899-6-22 5784 Humboldt Trinity summit North Coast Ranges 2133 Comment
  CAS-BOT-BC43999  Arctostaphylos uva-ursi W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  CHSC591  Arctostaphylos uva-ursi 1930-3-30 Humboldt Comment
  UCD52047  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1147 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  SEINET11984848  Arctostaphylos uva-ursi Unknown 1965-1 555 Humboldt 1.3 mi S of Samoa, Samoa Peninsula Comment
  CAS-BOT-BC48259  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1939-4-29 16265 Humboldt Orleans 121 Comment
  UCR64184  Arctotheca calendula T. C. Fuller, G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries daily, 3.4 mi west of Main Street, on Centerville beach rd. Ferndale Comment
  CDA36130  Arctotheca prostrata CDFA Staff 1990-8-22 Humboldt Ferndale; Sage Road & Highway 211. 0 Comment
  HSC69625  Armeria maritima subsp. californica R. Kalal 1979-5-29 34 Humboldt Along Samoa Blvd. 3 Comment
  HSC47944  Arnica cernua Brad Klipfel 1974-5-27 436 Humboldt Horse Mtn. Comment
  HSC65884  Arnica cernua M. A. Baker 1980-6-16 1944 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC82431  Arnica discoidea Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  HSC97987  Arnica discoidea Cara Witte 2007-7-8 430 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  JEPS20972  Arnica discoidea Harley P. Chandler 1901-6-1 1400 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  UC1199252  Arnica discoidea Joseph P. Tracy 1918-7-5 5001 Humboldt White Thorn Valley 304 Comment
  UC573781  Arrhenatherum elatius H. S. Yates 1936-6-23 5851 Humboldt 2 mi e of Mouth of Mad River 30 Comment
  CAS-BOT-BC84833  Artemisia douglasiana Carl B. Wolf 1927-8-29 1203 Humboldt Near mouth of Bear River, Capetown Comment
  CAS-BOT-BC93859  Artemisia dracunculus Doris K. Kildale 1926-8-8 2473 Humboldt Dyerville Bidge, river bar 45 Comment
  BLMAR405  Aruncus dioicus Clara Sander July, 2004 405 Humboldt Horse Mtn, Road side edge of Titlow Hill Road 1066 Comment
  HSC100257  Arundo donax J. P. Smith 2009-8-3 12642 Humboldt Along Hwy. 254 in Pepperwood. 51 Comment
  UC55947  Asarum caudatum J. P. Tracy 1900-5-22 794 Humboldt Immediate vicinity of Eureka Comment
  RSA53857  Aspidotis densa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  RSA686386  Aspidotis densa Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain Trail 915 Comment
  CDA10236  Aster chilensis E. C. Whitney 1963-9-17 Humboldt Lamphere Road, Arcata. 0 Comment
  RSA417645  Aster chilensis M. B. Dunkle 1936-8-18 4811 Humboldt Fortuna Comment
  RSA167196  Aster oregonensis Joseph P. Tracy 1950-9-22 19378 Humboldt Roadside, about 3 miles southwest of Orleans Comment
  HSC95164  Astragalus agnicidus Gordon Leppig 2003-7-10 2002 Humboldt Pacific Lumber Co. land 730 Comment
  RSA0006694  Astragalus agnicidus R. C. Barneby 1954-5-19 11570 Humboldt Over ridge on Henry Tosten ranch near Bear Buttes area. 4 miles south of Miranda. 762 Comment
  BLMAR220  Astragalus nuttallii Jennifer Anthony-Wheeler 1996-7-26 220 Humboldt King range, growing in open, coastal bluff 10ft W. of windy pt 91 Comment
  UC201698  Astragalus rattanii var. rattanii unknown 1884-6-1 Humboldt Black Butte Comment
  UC33313  Astragalus rattanii var. rattanii W. C. Blasdale 1896-6-4 Humboldt Graham's Comment
  JEPS118177  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  JEPS79824  Astragalus umbraticus Joseph P. Tracy 1914-7 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  UC179942  Astragalus umbraticus Joseph P. Tracy 1914-9-6 4598 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  HSC103946  Astragalus umbraticus T. Salzberg 1996-7-26 186 Humboldt Six Rivers National Forest; Forest Service Rd. 11N16, which is a tributary of Slate Creek Road. 1293 Comment
  HSC58324  Asyneuma prenanthoides Overton, Butler 1979-8-2 12621 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC55184  Athyrium filix-femina var. cyclosorum G. L. Clifton, Terry Griswold 1979-8-2 12228 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC95880  Athyrium filix-femina var. cyclosorum Will Ferrand 2002-2-2 22 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  UC922658  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  HSC82971  Atriplex prostrata A. L. Eicher 1985-8-17 Humboldt Marsh bordering Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  HSC26780  Avena barbata Thomas W. Nelson 1971-5-31 461 Humboldt 915 Comment
  HSC9026  Avena fatua Gene S. Van Horn 1962-5-23 26 Humboldt Arcata, at the corner of 13th St. and F St. 46 Comment
  SEINET10668635  Baccharis Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-8-6 Bennett 486 Humboldt Collected by Hwy. 101, N side of Orick. Rocky area, densely forested by river. 30 Comment
  UC492247  Barbarea orthoceras Joseph P. Tracy 1927-7-24 8292 Humboldt Mattole Valley 152 Comment
  RSA187521  Bellis perennis John H. Thomas 1966-3-19 11489 Humboldt Near the M. G. Goethe Grove in Prairie Creek Redwoods State Park near Highway 101, between Eureka and Crescent city. Comment
  UCD129543  Bellis perennis Joseph M. DiTomaso 1976-3-28 343 Humboldt Arcata, corner of 3rd and D. Comment
  RSA114084  Bensoniella oregona R. C. Bacigalupi, Constance, Trqacy, Moran, Rodriguez, Carlquist 1951-6-14 3410 Humboldt High Prairie, on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) 1067 Comment
  HSC76285  Berberis aquifolium var. aquifolium Denis Kearns 1981-6-24 7 Humboldt Near Cedar Camp 1219 Comment
  BLMAR655  Berberis nervosa Jennifer Wheeler 2012-5-9 655 Humboldt Lacks Creek, Beaver Ridge Road 914 Comment
  HSC28089  Berberis nervosa J. D. Ackerman 1973-4-29 77 Humboldt 2 mi. NE of Kneeland Comment
  HSC39525  Berberis nervosa Thomas W. Nelson, Jane Nelson 1976-6-15 2715 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC41329  Berberis nervosa Brad Klipfel 1974-8-2 509 Humboldt Horse Mtn. Comment
  UC1198382  Berberis nervosa Joseph P. Tracy 1924-4-27 6642 Humboldt along hwy near Ruby Creek (Willow Creek) 609 Comment
  CAS-BOT-BC412990  Bistorta bistortoides L. B. Kildale 1930-8-10 10531 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC55339  Bistorta bistortoides Griswold, Butler 1979-7-12 7192 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC672887  Blechnum spicant Joseph P. Tracy 1940-8-25 16718 Humboldt Bald Mt. 975 Comment
  JEPS35166  Blechnum spicant Milo S. Baker 1923-7-19 83 Humboldt canyon near Wilder's; Mattole River region, sw Humboldt Co. Comment
  CAS-BOT-BC14301  Boechera platysperma Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1676 Comment
  UC562689  Boechera sparsiflora Joseph P. Tracy 1935-7-31 14391 Humboldt ridge connecting Trinity Summit with Salmon Summit; Devils Backbone 1676 Comment
  POM256441  Boisduvalia densiflora var. densiflora Joseph P. Tracy 1937-7-19 15463 Humboldt Larrabee Valley 732 Comment
  UC1133575  Bolboschoenus maritimus H. S. Yates 1936-6-16 5673 Humboldt 1 mi ne Samoa; Eureka Quad., ne of Samoa Comment
  CHSC96445  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1999-10-25 1268 Humboldt State Highway 101, mile marker 61.40. UTM zone 10, 4519N, 406 E. 2 Comment
  CAS-BOT-BC420270  Boykinia occidentalis Carl B. Wolf 1927-8-22 798 Humboldt Big Lagoon Comment
  CAS-BOT-BC420273  Boykinia occidentalis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC20180  Boykinia occidentalis D. E. Anderson 1965-9-5 4095 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC96467  Boykinia occidentalis Gordon Leppig 1997-6-19 464 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  SBBG26977  Boykinia occidentalis R. S. Ferris 1937-8-21 9390 Humboldt above beach, Shelter Cove Comment
  CAS-BOT-BC420274  Boykinia occidentalis Milo S. Baker 1923-9-19 84 Humboldt Canon near Carlotta Comment
  CAS-BOT-BC420276  Boykinia occidentalis Doris K. Kildale 1927-6-25 3574 Humboldt Fearren's ranch between Thorn & Shelter Cove Comment
  UC303172  Boykinia occidentalis H. E. Parks and Joseph P. Tracy 1924-8-10 6804 Humboldt Van Duzen River near Strongs Station; Northern Coast Ranges, Van Duzen River 60 Comment
  HSC64122  Brassica rapa J. P. Smith 1973-5-26 6790 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC6586  Brassica rapa C. O. Baker 1962-5-7 32 Humboldt 2 mi. S of Trinidad along Hwy. 101 15 Comment
  CAS-BOT-BC106289  Brickellia californica E. G. Johnston 1931-8-1 s.n. Humboldt Myers, S. Fork Eel River Comment
  HSC25983  Brickellia californica Thomas W. Nelson 1970-9-3 232 Humboldt Mad River. Comment
  SEINET5781061 Image available Brickellia californica S. K. Harris, C. M. Wilder 1938-9-8 Humboldt Van Duzen River, below Blue Slide Comment
  UC581796  Brickellia californica Joseph P. Tracy 1934-9-30 13681 Humboldt Bridgeville 198 Comment
  HSC104100  Briza maxima Kyle Brown 2015-3-20 39 Humboldt Along the Lost Coast Trail, at the mouth of Oak Creek 14 Comment
  HSC61765  Briza maxima Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan Comment
  UC1197741  Brodiaea elegans subsp. elegans Joseph P. Tracy 1930-6-21 8776 Humboldt Larrabee Valley 731 Comment
  HSC48787  Brodiaea elegans subsp. elegans Brad Klipfel 1974-7-23 478 Humboldt Along Titlow Hill Rd. Comment
  JEPS7652  Brodiaea elegans subsp. elegans Milo S. Baker 1923-7-28 131 a Humboldt near camp on South Fork Yager Creek Comment
  UC1197747  Brodiaea elegans subsp. elegans Joseph P. Tracy 1924-8-6 6780 Humboldt garden of Joseph P. Tracy, Eureka Comment
  RSA168838  Brodiaea stellaris Joseph P. Tracy 1950-6-25 18903 Humboldt McClellen Mtn, just E of McClellen Rock, Burr Valley. 762 Comment
  SEINET202009  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1942-6-15 17125 Humboldt Englewood natural prairie near Redcrest resort 91 Comment
  UC1197735  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1936-6-9 14893 Humboldt s of point of Cape; Cape Mendocino 3 Comment
  CAS-BOT-BC144348  Bromus W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  UC37587  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-21 5725 Humboldt Hupa Valley, Supply Creek Supply Creek; Hupa Valley, Supply Creek Comment
  UCD59273  Bromus carinatus var. carinatus A. H. Murphy 1951-3-1 6 Humboldt 2 miles north of Petrolia. Comment
  UC249501  Bromus carinatus var. maritimus Joseph P. Tracy 1922-5-28 6054 Humboldt Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  CHSC10108  Bromus diandrus J. W. Johnson 1962-4-18 1268 Humboldt Arcata. Along the lower lane below the W.M. Lanphere home, Samoa Peninsula. Comment
  HSC37936  Bromus diandrus Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC9247  Bromus hordeaceus J. R. Eichelberger 1964-5-13 80 Humboldt 1/4 mi. from U.S. 101 on the N side of the Mad River. Comment
  UC1103362  Bromus hordeaceus Joseph P. Tracy 1939-4-29 16260 Humboldt Orleans 121 Comment
  UC1131062  Bromus hordeaceus H. S. Yates 1936-6-17 5716 Humboldt near Burr Valley 914 Comment
  CAS-BOT-BC162447  Bromus laevipes L. R. Abrams 1918-6-16 7155 Humboldt Willow Creek. Comment
  UC188942  Bromus secalinus J. Burtt Davy 1899-6-20 5688 B Humboldt North Coast Ranges, Hoopa Valley Hoopa Valley; North Coast Ranges, Hoopa Valley Comment
  SEINET200827 Image available Bromus sterilis Joseph P. Tracy 1916-5-31 4698 Humboldt Along Eel River from South Fork to Scotia. Holmes Flat. Comment
  UC1103357  Bromus sterilis Joseph P. Tracy 1920-5-31 5331 Humboldt near Carlotta (along Yager Creek); Northern Coast Ranges, Yager Creek 60 Comment
  UC1145181  Bromus sterilis Joseph P. Tracy 1950-6-15 18776 Humboldt Mail Ridge 944 Comment
  HSC58381  Bromus suksdorfii Terry Griswold 1979-7-25 10855 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  UC1103351  Bromus tectorum Joseph P. Tracy 1926-5-2 7423 Humboldt near the South Fork (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC58758  Bromus vulgaris Overton, Butler 1979-7-26 9932 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  UC1145187  Bromus vulgaris Joseph P. Tracy 1949-6-20 18317 Humboldt 6 mi se of Arcata (Fickle Hill); Fickle Hill 609 Comment
  UCD60238  Bromus vulgaris R. Tofsrud 1947-7-1 202 Humboldt Near Harris. Comment
  HSC103973  Cakile maritima C. Reynolds 2015-3-16 18 Humboldt Along Freshwater Beach, due south of the Kuchel Visitor Center 1 Comment
  HSC6608  Cakile maritima D. E. Anderson 1961-9-2 1770 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  UCD114936  Cakile maritima M. Barbour 1969-9-4 s.n. Humboldt West of Table Bluff (10 miles south of Eureka). Comment
  UCD114939  Cakile maritima M. Barbour 1969-12-15 s.n. Humboldt South of Silver Strand State Beach. Comment
  HSC64308  Calandrinia ciliata J. P. Smith, J. O. Sawyer 1976-5-2 8617 Humboldt 1.5 mi. N of Willow Creek on Hwy. 96 61 Comment
  UC1103687  Callitriche marginata Joseph P. Tracy 1921-4-24 5436 Humboldt Phillipsville Flat, South Fork of Eel River. Northern Coast Ranges. 91 Comment
  UC1714425  Callitriche marginata Joseph P. Tracy 1901-6-30 1207 Humboldt Immediate Vicinity Eureka 0 Comment
  CAS-BOT-BC80390  Calocedrus decurrens Doris K. Kildale 1926-9-5 2610 Humboldt Lasseck's Peaks - at Goat Camp 1661 Comment
  HSC1293  Calocedrus decurrens W. R. Rogers 1965-5-7 296 Humboldt HSC campus Comment
  HSC56944  Calocedrus decurrens Overton, Butler 1979-7-23 9433 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC57987  Calocedrus decurrens G. L. Clifton, Griswold 1979-7-31 11728 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC70750  Calocedrus decurrens R. York 1980-5-17 533 Humboldt Near Le Perron Peak 1066 Comment
  HSC15377  Calochortus tolmiei D. E. Anderson 1965-5-15 3559 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek, above Trinity River Comment
  HSC67180  Calochortus tolmiei Thomas W. Nelson, James Nelson 1980-6-10 5431 Humboldt Along E side of Red Mtn. 1372 Comment
  RSA113893  Calochortus tolmiei E. K. Balls, Lee W. Lenz 1955-5-15 20738 Humboldt 13.5 miles SW from Ferndale along Old Coast road to Capetown. 335 Comment
  UC659312  Calochortus tolmiei Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2614 Humboldt near Eureka; Larrabee Valley 762 Comment
  CAS-BOT-BC496520  Calochortus tolmiei Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka 762 Comment
  POM169967  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt Sand dunes west of Dows Prairie; Northern Coast Ranges 15 Comment
  UC3435  Calochortus tolmiei H. N. Bolander 1867-1 6555 Humboldt Red Mts. Comment
  RSA12547  Caltha howellii Carl B. Wolf 1934-7-2 5891 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  UC405439  Calycadenia fremontii Chesnut and Drew 1888-8-1 Humboldt Lionse Creek Comment
  UC195065  Calycadenia truncata Joseph P. Tracy 1916-9-5 4755 Humboldt head of Canoe Creek Northern Coast Ranges, Grasshopper Ridge 609 Comment
  SEINET11861072  Calycadenia truncata subsp. scabrella H. P. Chandler 1901-1 1492 Humboldt Klamath River, North Coast Ranges 427 Comment
  CAS-BOT-BC275368  Calycadenia truncata var. truncata Harley P. Chandler 1901-6-1 1492 Humboldt Klamath River 426 Comment
  BLMAR74  Calypso bulbosa Jennifer Anthony-Wheeler 1994-6-2 74 Humboldt IAQUA 1036 Comment
  HSC48948  Calypso bulbosa M. A. Baker 1979-5-17 732 Humboldt On FS 1 along Wilson Creek, just E of FS 15N01 Comment
  HSC55149  Calyptridium monospermum G. L. Clifton, Terry Griswold 1979-8-1 12075 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC46956  Calystegia soldanella J. P. Smith, Thomas W. Nelson 1977-6-30 9204 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC59205  Calystegia soldanella Terry Roth 1979-5-24 81 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  SD42477  Calystegia soldanella Carl B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  UC153985  Calystegia soldanella J. P. Tracy 1901-8-7 1274 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); , opp. Eureka Comment
  UC198628  Calystegia soldanella Joseph P. Tracy 1917-5-30 4803 Humboldt sand dunes near Little River; Northern Coast Ranges, near Little River 6 Comment
  SEINET3991741  Camassia leichtlinii Unknown 1947-6-26 Humboldt South Fork Mtn. Comment
  UC1197668  Camassia quamash J. P. Tracy 1906-6-24 2509 Humboldt near Field's Landing (on s slope of Humboldt Hill); Humboldt Hill 30 Comment
  HSC34968  Camassia quamash subsp. linearis Thomas W. Nelson 1975-5-24 1876 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC38195  Camissonia cheiranthifolia Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  UCR122368  Camissonia cheiranthifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7021 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC47487  Camissonia cheiranthifolia Sheila Logan 1978-4-7 6 Humboldt Samoa Sand Dunes, 1/4 mi. N of Coast Guard Station at N spit of Samoa Peninsula Comment
  NY679576  Camissonia cheiranthifolia subsp. cheiranthifolia L. Abrams 1916-7-18 6120 Humboldt Arcaba to Trinidad. Comment
  UC1196941  Camissonia contorta Joseph P. Tracy 1901-4-14 1028 Humboldt Samoa Northern Coast Region, Humboldt Bay Comment
  UC1196947  Camissonia contorta Joseph P. Tracy 1939-4-29 16244 Humboldt mouth of Slate Cr. Klamath River 121 Comment
  SEINET10463306  Campanula prenanthoides Pollard 1948-7-23 POLLARD s.n. Humboldt REECE POINT NEAR ORLEANS Comment
  SEINET10840306  Campanula prenanthoides Bruce Allen 1936-7-14 Allen 36 A243 Humboldt Willow Creek Comment
  SEINET10939028  Campanula prenanthoides Klipfel 1974-7-23 KLIPFEL 467 Humboldt Horse Mountain, at junction of a draw and the saddle of the ridge. T6N R4E Sec. 27 SW 1/4 Comment
  SDSU1307  Campanula scouleri D. F. Howe 1964-8-7 3944 Humboldt 8.2 miles from #96 on Mill Creek road, Hoopa Valley. 1067 Comment
  SEINET10463446  Campanula scouleri Howard S. Irwin 1975-8-16 Irwin s.n. Humboldt GROGANS HOLE AREA. T8N R6E SEC. 16 Comment
  SEINET10463519  Campanula scouleri Nelson 1975-7-15 NELSON 2031 Humboldt FRENCH CAMP, BALD HILLS SERPENTINE OUTCROP. T9N R3E SEC. 28 Comment
  SEINET10463753  Campanula scouleri Wolf 1934-7-2 WOLF 5854 Humboldt 2 miles from Bald Mountain on road to Korbel 762 Comment
  UC29021  Campanula scouleri C. C. Marshall 1886-1 Humboldt Comment
  UC162969  Cardamine breweri J. P. Tracy 1905-4-23 2169 Humboldt immediate vicinity Eureka; vicinity Eureka 0 Comment
  UC275268  Cardamine breweri Joseph P. Tracy 1923-6-24 6364 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, , nr High Prairie 1066 Comment
  HSC23626  Cardamine californica J. O. Sawyer 1971-6-14 2376 Humboldt Above E fork of Horse Linto Creek 1494 Comment
  UC1199200  Cardamine californica Joseph P. Tracy 1924-2-24 6603 Humboldt near McKee's Mill (South Fork Eel River); Northern Coast Ranges, South Fork Eel River 60 Comment
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Jul 25 2012
  UC162350  Cardamine californica J. P. Tracy 1905-2-26 2145 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 Comment
  RSA176497  Cardamine californica var. integrifolia Doris K. Kildale 1927-1-23 2974 Humboldt Van Duzen River at the Blue Shale. Comment
  UC1199197  Cardamine nuttallii var. covilleana Joseph P. Tracy 1938-6-13 15897 Humboldt Horse Mountain 1432 Comment
  HSC6639  Cardamine oligosperma S. J. Hawks 1965-3-12 4 Humboldt 0.5 mi. W of Fairhaven Comment
  HSC6647  Cardamine oligosperma Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  UC1225795  Cardionema ramosissimum Joseph P. Tracy 1947-7-3 17765 Humboldt at mouth of Little River 6 Comment
  UC1222954  Carduus tenuiflorus Joseph P. Tracy 1942-6-28 17266 Humboldt toward Hungry Hollow Angel's Ranch; Bald Mountain, Hungry Hollow Comment
  CAS-BOT-BC19435  Carex bolanderi Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  UC1103068  Carex brainerdii Joseph P. Tracy 1942-6-23 17247 Humboldt near Box Camp; Trinity Summit 1524 Comment
  RSA126089  Carex buxbaumii Joseph P. Tracy 1924-7-13 6724 Humboldt Big Lagoon 6 Comment
  UC1586920  Carex canescens Juha Pykala and D. H. Norris 1987-6-5 1435 Humboldt e Maple Creek; Lake Prairie 1050 Comment
  UC1103602  Carex concinnoides Joseph P. Tracy 1927-6-12 8145 Humboldt Horse Mountain 1432 Comment
  UC1103597  Carex concinnoides Joseph P. Tracy 1933-6-13 12594 Humboldt on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  RSA296773  Carex densa Thomas W. Nelson, James Nelson 1976-5-30 2629 Humboldt McKeown Ranch north of Dinsmore. 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
  UC302100  Carex deweyana subsp. leptopoda Joseph P. Tracy 1914-6-28 4515 Humboldt Carlotta Northern Coast Ranges 60 Comment
  HSC96552  Carex echinata subsp. phyllomanica Gordon Leppig 1997-6-19 445 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC1152081  Carex fracta Joseph P. Tracy 1950-7-2 18963 Humboldt 6 mi NE of Hawkins Bar (Fern Spring, Happy Camp Mountain); Trinity Summit Range 1280 Comment
  CAS-BOT-BC20871  Carex globosa Joseph Prince Tracy 1927-7-4 8242 Humboldt North Coast Ranges. Blue Slide, on Van Duzen River. 91 Comment
  UC1103591  Carex gynodynama Joseph P. Tracy 1938-6-11 15893 Humboldt Vicinity of Carlotta. Comment
  UC1116268  Carex gynodynama Joseph P. Tracy 1942-6-15 17127 Humboldt Englewood, Natural Prairie, near Redcrest Resort. Comment
  POM160302  Carex hendersonii Joseph P. Tracy 1926-6-13 7598 Humboldt Blue Lake. 152 Comment
  RSA15489  Carex hendersonii Joseph P. Tracy 1933-5-28 12415 Humboldt Carlotta. 61 Comment
  HSC76780  Carex hendersonii L. P. Janeway 1983-5-29 320 Humboldt Along Jolly Giant Creek, E of HSU campus 61 Comment
  CAS-BOT-BC35563  Carex jonesii Joseph Prince Tracy 1935-7-26 14257 Humboldt Trinity Summit, Meadows at Water Dog Lakes 1828 Comment
  RSA88658  Carex laeviculmis F. W. Peirson 1941-7-23 13091 Humboldt Van Damme State Park. Along the creek about 2 miles from camp. Comment
  UC562250  Carex lenticularis var. impressa Joseph P. Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC31466  Carex leptopoda Joseph Prince Tracy 1935-6-8 13937 Humboldt Eureka. 60 Comment
  CAS-BOT-BC31464  Carex leptopoda Joseph Prince Tracy 1913-6-22 4267 Humboldt Dinsmore's Ranch, in valley of Van Duzen River opposite Buck Mountain. 762 Comment
  HSC44035  Carex leptopoda Thomas W. Nelson, Jane P. Nelson 1977-7-1 3580 Humboldt Along road, N from Alder Springs 1463 Comment
  HSC34959  Carex multicaulis Thomas W. Nelson 1975-5-24 1869 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC70323  Carex multicaulis M. A. Baker 1980-6-7 1875 Humboldt Near Ammon Creek 732 Comment
  HSC70849  Carex multicostata M. A. Baker 1980-6-7 1826 Humboldt Near Ammon Creek 732 Comment
  UC562669  Carex multicostata Joseph P. Tracy 1927-7-4 8233 Humboldt Iaqua North Coast Ranges 609 Comment
  CAS-BOT-BC119377  Carex obnupta Mrs. H. C. Cantelow 1936-5-17 1238 Humboldt Near Orick. Comment
  HSC104459  Carex obnupta Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-27 28 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 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-BC119271  Carex ovalis Joseph Prince Tracy 1937-8-7 15617 Humboldt Bald Mt. Murphy Ridge. 914 Comment
  HSC73703  Carex pachystachya M. A. Baker 1980-7-22 3122 Humboldt Near Grogan Hole. 1676 Comment
  POM247172  Carex pachystachya Joseph P. Tracy 1935-6-8 13938 Humboldt Eureka. 0 Comment
  UC249810  Carex pachystachya Joseph P. Tracy 1923-6-17 6278 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC562644  Carex pachystachya Joseph P. Tracy Jul 16 1930-Jul 19 1930 8984 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC49246  Carex pansa Rudolf W. Becking 1979-3-25 Humboldt U.S. Coast Guard Station along N Spit Humboldt Bay, Fairhaven Comment
  UC249559  Carex saliniformis Joseph P. Tracy 1921-8-7 5863 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  RSA313440  Carex serratodens Thomas W. Nelson, Jane P. Nelson 1978-7-2 4404 Humboldt In spring on disturbed site along road 2S08 near Pine Mountain, road to Lost Lake. 1463 Comment
  UC562658  Carex subfusca Joseph P. Tracy 1928-6-24 8470 Humboldt Valley of South Yager Creek 762 Comment
  HSC44059  Carex subfusca Thomas W. Nelson 1976-7-9 3004 Humboldt Along creek S of Mount Lassic (Signal Peak). 1707 Comment
  SEINET4170216  Carex unilateralis Unknown 1921-6-12 5828 Humboldt Butler Valley 152 Comment
  CAS-BOT-BC115539  Carex unilateralis Joseph Prince Tracy 1930-6-15 8756 Humboldt Bordering a pond, Dobbyn Creek 152 Comment
  JEPS26002  Carex unilateralis Joseph P. Tracy 1938-7-5 16007 Humboldt old Strongs Distrcict School House, 5 miles E of town 45 Comment
  UC1152050  Carex utriculata Joseph P. Tracy 1950-8-7 19264 Humboldt Box Camp Trinity Summit 1463 Comment
  UC562331  Carex vesicaria Joseph P. Tracy 1934-8-29 13622 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC7088  Carex viridula H. E. Parks Sep 1934 5157 Humboldt Dry Lagoon Comment
  POM126175  Carex viridula Joseph P. Tracy 1924-7-13 6720 Humboldt Big Lagoon 6 Comment
  HSC96343  Carex viridula subsp. viridula Gordon Leppig 1999-10-3 1258 Humboldt Big Lagoon Bog, Big Lagoon County Park, N end of fen 3 Comment
  UC249753  Carex viridula var. viridula Joseph P. Tracy 1924-7-13 6720 Humboldt Big Lagoon Northern Coast Region 6 Comment
  RSA170321  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie on ridge 1 mile north above Bull Creek, about 2 miles west of Dyerville Comment
  HSC103410  Castilleja affinis subsp. affinis Kaylea Eickhoff, Cara M. Witte 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  HSC20521  Castilleja affinis subsp. litoralis D. E. Anderson 1962-7-10 2244 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  HSC20571  Castilleja affinis subsp. litoralis R. E. Hafenfeld 1965-5-9 29 Humboldt 1/2 mi. S of Squashan Cr. Jct. Gold Bluff Beach Rd. Comment
  UCSB26617  Castilleja ambigua Havlik, Neil 1968-8-21 Humboldt Samoa, west of Eureka Comment
  HSC90430  Castilleja ambigua subsp. humboldtiensis Jean Hanson 1980-6-22 97 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  JEPS26389  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1900-7-4 867 Humboldt Samoa North Coast Region, Humboldt Bay Region 0 Comment
  JEPS26533  Castilleja applegatei subsp. martinii Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  JEPS3813  Castilleja arachnoidea Joseph P. Tracy 1935-7-24 14171 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  HSC46970  Castilleja exserta subsp. latifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9210 Humboldt Samoa Peninsula just E of the drag strip. Comment
  UC582570  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1927-5-8 7985 Humboldt vicinity Garberville 121 Comment
  HSC103011  Catalpa bignonioides J. P. Smith 2014-6-6 13868 Humboldt Willow Creek. Ornamental tree 180 Comment
  UC1502112  Ceanothus R. Sutherland 1976-1-30 4 .30.76 Humboldt Pt. Delgada Quad. 990 Comment
  HSC100905  Ceanothus Carl C. Marshall Jun 1887 462 Humboldt East branch. Comment
  UCD112128  Ceanothus foliosus R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  HSC37602  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-13 10 .13575 Humboldt Brushy flat 509 Comment
  CAS-BOT-BC50047  Ceanothus incanus Doris K. Kildale 1928-5-6 6014 Humboldt Garberville, Eel River Valley - South Fork Comment
  CAS-BOT-BC63676  Ceanothus integerrimus L. B. Kildale 1927-7-17 3751 Humboldt Bug Creek. 792 Comment
  CAS-BOT-BC63509  Ceanothus oliganthus var. sorediatus Doris K. Kildale 1926-11-13 2852 Humboldt Mouth of Lindsay Creek at Mad River. 30 Comment
  UC275288  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1924-5-4 6669 Humboldt near Bridgeville; Northern Coast Ranges, Little Larabee Creek 243 Comment
  POM128711  Ceanothus parryi Jos. Burtt Davy, W. C. Blasdale 1899-6-11 5460 Humboldt Betw Camp Grant and Elk Prairie Comment
  HSC44398  Ceanothus pumilus Brad Klipfel 1975-5-24 633 Humboldt Horse Mtn. Comment
  HSC98122  Ceanothus pumilus Cara Witte 2007-5-24 118 Humboldt Horse Mountain Botanical Area. Along 6N36. Approximately .6 miles southeast from Radio Towers. 1476 Comment
  UC1094482  Ceanothus pumilus R. E. Nelson 1955-5-14 162 Humboldt about 5 mi w Miranda; Quad. 29-C-2, w of Miranda 762 Comment
  CAS-BOT-BC52216  Ceanothus thyrsiflorus Doris K. Kildale 1926-4-11 1753 Humboldt Blue Slide in the Van Duzen River Comment
  HSC101668  Ceanothus thyrsiflorus J. P. Smith, J. O. Sawyer 2011-4-23 13129 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  RSA46882  Ceanothus thyrsiflorus Doris K. Kildale 1926-6-18 2399 Humboldt Gold Bluffs. Comment
  SEINET3837108 Image available Ceanothus thyrsiflorus Joseph P. Tracy 1935-6-2 13924 Humboldt Big Lagoon 61 Comment
  UC1193280  Ceanothus thyrsiflorus R. H. Neuns 1950-10-17 142 Humboldt Bear Creek Road 6 mi n Shelter Cove; Quad. 28D4, Bear Creek Rd, n of Shelter Cove 609 Comment
  SEINET12209982  Ceanothus thyrsiflorus L. K. Henry 1971-1 s.n. Humboldt Along Rt. 36, 2 mi east of Dinsmore in Six Rivers National Forest Comment
  SEINET12209983  Ceanothus thyrsiflorus Unknown 1931-1 13038 Humboldt Garbarville Comment
  SBBG4536  Ceanothus thyrsiflorus var. thyrsiflorus M. J. Cody 1938-7-14 Humboldt Trinidad Comment
  UC1052836  Ceanothus velutinus W. L. Colwell 1955-6-7 28 Humboldt three mi w Weott (one half mi n of Grasshopper Mountain lookout); Quad. 29B3, n of Grasshopper Mountain lookout 914 Comment
  JEPS25793  Centaurium muehlenbergii L. R. Heckard 1960-8-23 1211 Humboldt about 0.5 mi s Dry Lagoon State Park (near Orick) 152 Comment
  UC566944  Centaurium muehlenbergii H. L. Mason 1928-7-14 4903 Humboldt near Garberville; East Fork of Eel River Comment
  RSA12461  Centaurium muehlenbergii Carl B. Wolf 1934-6-30 5832 Humboldt One half mile from Briceland on road to Garberville. 91 Comment
  HSC104291  Cephalanthera austiniae Samantha E. Andres 2016-5-6 23 Humboldt About 4 mi. W on Mattole Rd. from the South Fork/Honeydew exit, above Harper Creek 128 Comment
  HSC99829  Cephalanthera austiniae T. Jimerson, J. Pageau 1979-7-31 708 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  CAS-BOT-BC384901  Cerastium arvense Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC1537306  Cerastium arvense Gordon H. True Jr. 1936-5-11 457 Humboldt 12 mi. w. Miranda (gully on w. slope of Elk Ridge); Elk Ridge 457 Comment
  UCD97989  Cerastium arvense subsp. strictum W. L. Jepson 1902-6-19 1883 Humboldt Harris to Ft. Seward Ranch Ridge. 1066 Comment
  UC176615  Cerastium glomeratum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3581 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC41651  Chamaecyparis lawsoniana Thomas W. Nelson 1977-10-20 3758 Humboldt Above junction of Maple Creek and Kneeland Rds. 854 Comment
  NY19046  Chamaecyparis lawsoniana J. P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762.0 Comment
  RSA47095  Chamaecyparis lawsoniana Doris K. Kildale 1926-8-15 2522 Humboldt Willow Creek Flat-- up Willow Creek above[?] 3 mi. from mouth 152 Comment
  UC1122499  Chamerion angustifolium subsp. circumvagum H. S. Yates 1936-6-23 5869 Humboldt 3 mi se Scotia; Rohnerville Quadrangle Comment
  UCD103644  Chamerion angustifolium subsp. circumvagum E. B. Alexander 1959-7-23 43 Humboldt California Forest and Range Experiment Station. 1 mile NW of Trinidad. Comment
  HSC98042  Chamomilla suaveolens Cara Witte 2007-7-17 533 Humboldt Intersection of 6N01B and National Forest 1. 1427 Comment
  HSC70802  Cheilanthes gracillima Gail Newton 1980-7-24 1780 Humboldt Near Somes Mtn. 1615 Comment
  HSC98769  Cheilanthes gracillima Cara Witte 2007-8-9 628 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .2 miles from intersection with Forest Service Road 4N32B. 1413 Comment
  UC582918  Chenopodium botrys P. A. Munz 1936-8-9 14334 Humboldt Williams Redwood Grove South Fork of Eel River Comment
  RSA478469  Chenopodium botrys M. B. Dunkle 1936-8-22 4860 Humboldt Williams Grove, Eel River. 213 Comment
  HSC41338  Chimaphila umbellata Brad Klipfel 1974-9-7 562 Humboldt Horse Mtn., above E fork of Willow Creek Comment
  SBBG83414  Chimaphila umbellata R. Gankin 1965-8-5 546 Humboldt Kings Mtn Rd, 2.2 mi E of rd end, Pacific Range Wilderness Area Comment
  RSA43899  Chimaphila umbellata subsp. occidentalis H. M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1372 Comment
  RSA467018  Chimaphila umbellata subsp. occidentalis A. C. Life 1924-2-23 14589 Humboldt Kings Mts.,Redwood Park. Comment
  CAS-BOT-BC497671  Chlorogalum pomeridianum L. R. Abrams 1918-6-16 7191 Humboldt Willow Creek Comment
  CDA7411  Chrysanthemum segetum B. F. Kemp 1958-4-11 345 -58 Humboldt South Side Mad River near mouth. 0 Comment
  UC1198852  Chrysosplenium glechomifolium J. P. Tracy 1901-6-10 1128 Humboldt immediate vicinity Eureka 0 Comment
  UC1224690  Chrysosplenium glechomifolium D. E. Anderson 1964-4-12 2974 Humboldt small creek leading into Jacoby Creek (on n side of road) Comment
  SD58271  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt Marsh south of Salmon Creek Comment
  HSC58807  Cinna latifolia G. L. Clifton 1979-7-31 11865 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC53929  Circaea alpina subsp. pacifica Griswold, Butler 1979-7-11 6944 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC58212  Circaea alpina subsp. pacifica Walter Overton 1979-8-1 12340 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC62998  Circaea alpina subsp. pacifica David Wheeler 1979-5-13 106 Humboldt Redwood Valley, 1.0 mi. S of dump on other side of Redwood Creek from rd. Comment
  HSC99470  Circaea alpina subsp. pacifica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 124 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS31552  Circaea alpina subsp. pacifica Lincoln Constance 1934-5-31 742 Humboldt from w. boundary of park to Grasshopper Peak (Squaw Creek rd., Bull Creek flat along Bull Creek, n. side of creek, Bull Creek Region); Bull Creek Region Comment
  RSA245007  Circaea alpina subsp. pacifica William J. Ferlatte, B. D. Rogers 1966-6-15 2095 Humboldt East of Bridge ville on Highway 36 671 Comment
  HSC91922  Cirsium arvense E. Mackey 1986-7-21 Humboldt Patricks Point State Park; Palmer's Point Comment
  JEPS59108  Cirsium arvense Lincoln Constance 1934-6-2 787 Humboldt to mouth of Bull Creek, and up Bull Creek Bull Creek road; South Fork Eel River, Bull Creek Region Comment
  NY370205  Cirsium arvense L. Abrams 1916-7-11 6034 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  SJSU8454  Cirsium arvense H. T. Harvey 1977-7-7 622 Humboldt delta lands of Eel River c. 4 mi NW of Ferndale Comment
  HSC104074  Cirsium arvense T. Collins 2002-7-31 Humboldt Six Rivers National Forest; along road cut on Hwy. 36 Comment
  HSC40131  Cirsium arvense Thomas W. Nelson, James Nelson 1976-7-28 3082 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  HSC5371  Cirsium arvense H. D. Sumner 1959-7-13 Humboldt Redwood Creek near Hwy. 299 305 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
  SEINET200853  Cirsium breweri Joseph P. Tracy 1924-7-6 6717 Humboldt Near Ruby Creek on the Willow Creek Hwy north coast ranges Comment
  CDA19782  Cirsium occidentale var. candidissimum J. Dolf 2001-9-6 PDR 069832 Humboldt Northern California; Vicinity of Honeydew. 0 Comment
  JEPS59230  Cirsium occidentale var. candidissimum W. L. Jepson 1902-6-20 1893 Humboldt Ft. Seward Ranch ridge 1219 Comment
  CAS-BOT-BC285580  Cirsium occidentale var. occidentale L. R. Abrams 1916-7-18 6142 Humboldt At Trinidad Comment
  UC1199138  Cirsium occidentale var. venustum Joseph P. Tracy 1936-7-5 15045 Humboldt Horse Mt. 1066 Comment
  SEINET202627  Cirsium remotifolium Joseph P. Tracy 1949-8-11 18472 Humboldt East of headwaters of Redwood Creek beginning where the electric power line crosses and working south; Kinsey ridge s 1280 Comment
  JEPS59312  Cirsium vulgare W. L. Jepson 1936-8-12 17890 Humboldt Philipsville South Fork Eel River, Philipsville Comment
  RSA43835  Cirsium vulgare H. M. Pollard 1948-8-9 s.n. Humboldt Camp Creek, near Orleans. Comment
  UC677710  Clarkia amoena S. K. Harris 1936-6-25 671 Humboldt road from Petrolia to Cape Mendocino (s side of Domingo Gulch) 30 Comment
  CAS-BOT-BC160945  Clarkia amoena subsp. amoena Peter H. Raven; R. Snow 1958-7-21 13656 Humboldt 7.2 miles north-west of Capetown on road to Ferndale Comment
  CAS-BOT-BC160965  Clarkia amoena subsp. amoena Lester Rowntree 1937-8-18 s.n. Humboldt Between Ferndale & Capetown Comment
  HSC16233  Clarkia amoena subsp. huntiana P. A. Mansfield 1967-7-8 1 Humboldt 6 mi. W of Weitchpec on Hwy. 96 Comment
  JEPS43688  Clarkia amoena subsp. huntiana Milo S. Baker 1923-7-20 68 Humboldt Redwood House North Coast 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
  UC1072043  Clarkia amoena subsp. huntiana H. and M. Lewis 1947-6-12 416 Humboldt 0.1 mi w Trinity Co. line (Highway 36) Comment
  HSC63806  Clarkia concinna subsp. concinna M. A. Baker 1979-5-23 755 Humboldt Along Bair Rd., Hoopa Indian Reservation Comment
  LA206342  Clarkia gracilis H. Lewis; M. Lewis 1947-6-13 423 Humboldt Highway 36 at S Fork of Van Duzen River (Bridge 4-119) Comment
  SEINET12189257  Clarkia purpurea J. P. Tracy 1950-1 18809 Humboldt Fort Seward Ranch Comment
  CAS-BOT-BC172509  Clarkia purpurea subsp. quadrivulnera J. P. Tracy 1933-7-3 12634 Humboldt Trinity River at Willow Creek 152 Comment
  POM299419  Clarkia purpurea subsp. quadrivulnera C. C. Harris, S. K. Harris, J. P. Tracy 1942-6-22 1261 Humboldt 7 miles north and 5 miles east of Willow Creek 165 Comment
  UC902172  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1947-6-28 17723 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  POM247175  Clarkia purpurea subsp. viminea Joseph P. Tracy 1936-6-10 14924 Humboldt South Fork Trinity River; mountain slopes west of its mouth 457 Comment
  CAS-BOT-BC164823  Clarkia rhomboidea Doris K. Kildale 1928-6-24 5292 Humboldt Horse Mountain road near junction of Willow Creek road 853 Comment
  UC494167  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  SEINET181192 Image available Claytonia perfoliata subsp. perfoliata Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15107 Humboldt Bolling Grove State Park. Comment
  HSC39941  Claytonia rubra subsp. depressa Linda M. Barker 1976-2-22 1316 Humboldt 3 mi. W of Arcata Comment
  CHSC10779  Claytonia sibirica Lowell Ahart 1968-6-1 Humboldt Near Pepperwood. 45 Comment
  HSC64324  Claytonia sibirica J. P. Smith 1973-5-26 6824 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA271707  Claytonia sibirica Jane Turner, Francis M. Ball 1962-7-9 1133 ` Humboldt Redwood forest, beside scenic rdwood Hwy 2 miles S of jct with freeway, 40 miles N of Mendocino-Humboldt County line Comment
  UC1215540  Claytonia sibirica D. E. Anderson 1962-3-8 1930 Humboldt e of Humboldt State University Comment
  HSC17733  Claytonia sibirica E. W. Styskel 1963-5-16 31 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 290 Comment
  HSC98695  Claytonia sibirica C. Witte 2007-5-21 53 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  RSA117688  Claytonia sibirica S. S. Tillett 1956-7-5 603 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  UC726717  Claytonia sibirica A. A. Heller 1937-6-10 16274 Humboldt 3 mi n at Bishop Pine Lodge, U.S. Hwy 101 Trinidad Comment
  UCD100893  Claytonia sibirica D. Sanchez-Mata; S. Rivas-Martinez, M. Costa and M. Ladero 1998-6-10 s.n. Humboldt Trinidad-Klamath Glenn. Prairie Creek State Park. Prairie Creek Trail. 125 Comment
  JEPS61601  Clintonia andrewsiana W. L. Jepson 1921-9-11 9462 Humboldt n of Garberville Comment
  UC1537231  Clintonia andrewsiana Gordon H. True Jr. 1936-5-12 469 Humboldt 5 mi n of Kneeland 457 Comment
  UC1222545  Clintonia uniflora Joseph P. Tracy 1951-6-26 19556 Humboldt Snow Camp 1402 Comment
  HSC101087  Coincya monensis Andrea Pickart 2009-2-20 729 Humboldt Manila Dunes; End of Lupine Ave., Manila 15 Comment
  BLMAR639  Collinsia grandiflora Jennifer Wheeler 2011-6-21 639 Humboldt Lacks Creek, Pine Ridge Road 1158 Comment
  UC41758  Collinsia grandiflora Chestnut and Drew 1880-7-9 Humboldt Kneeland Comment
  UC147865  Collinsia grandiflora Joseph P. Tracy 1908-6 2709 Humboldt opposite Buck Mtn Valley of Van Duzen River; North Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS7342  Collinsia heterophylla Joseph P. Tracy 1927-5-30 8089 Humboldt Vicinity of Garberville 121 Comment
  UC582452  Collinsia linearis Joseph P. Tracy 1932-7-12 10439 Humboldt Trinity Summit, at Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  HSC20603  Collinsia linearis H. E. Parks 1934-6-14 4789 Humboldt Horse Mtn. 1433 Comment
  UC41811  Collinsia parviflora Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC98863  Collomia grandiflora Cara Witte 2008-8-5 985 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1569 Comment
  RSA135456  Collomia grandiflora Volney Rattan 1878-1 s.n. Humboldt Humboldt. Comment
  UC1197856  Collomia grandiflora Joseph P. Tracy 1933-8-30 13051 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC70776  Collomia heterophylla R. York 1980-5-17 551 Humboldt Near Le Perron Peak. 415 Comment
  SBBG29130  Collomia heterophylla H. E. Parks -May-1933 1152 Humboldt Spruce Cove, Trinidad 76 Comment
  UC535757  Collomia heterophylla Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  HSC43207  Collomia heterophylla R. Sutherland 1976-8-13 28 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  HSC71821  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1980-6-27 5954 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  JEPS26241  Collomia tracyi Joseph P. Tracy 1927-6-12 8161 Humboldt Horse Mountain Northern Coast Ranges (in slide rock) 1066 Comment
  UC133640  Collomia tracyi Joseph P. Tracy 1908-6 2720 Humboldt opposite Buck Mountain (along river on sand bar); Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  CAS-BOT-BC157350  Comarum palustre Doris K. Kildale 1926-6-25 2173 Humboldt Big Lagoon Comment
  HSC36436  Conium maculatum John Rehlingl 1974-6-27 Humboldt Along Alliance Rd. Comment
  UC127716  Conyza canadensis Harley P. Chandler May 1901 1241 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  JEPS23516  Coptis laciniata Joseph P. Tracy 1941-4-8 16856 Humboldt Willow Creek Canyon; along Trinity Hwy 762 Comment
  UC1196450  Corallorhiza maculata Joseph P. Tracy 1930-7-18 9063 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC64188  Corallorhiza mertensiana J. O. Sawyer, M. A. Ericksen 1979-6-23 3380 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  JEPS25066  Cordylanthus pilosus subsp. pilosus Joseph P. Tracy 1912-8-3 3977 Humboldt opposite Buck Mt.; Valley of Van Duzen River 762 Comment
  JEPS6786  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1924-7-20 6735 Humboldt Koby Ranch, on road between Willow Creek (an Three Creeks); Koby Ranch 609 Comment
  BLMAR678  Corethrogyne filaginifolia Jennifer Wheeler 2013-7-12 678 Humboldt King range, Johnny Jack Ridge 677 Comment
  CAS-BOT-BC101138  Corethrogyne filaginifolia D. M. Gordon 1982-9-20 s.n. Humboldt End of county road (Lanphere Rd.) on Hunt property. Lanphere-Christensen Dunes Preserve, 3 miles west of Arcata Comment
  JEPS15874  Corethrogyne filaginifolia Joseph P. Tracy 1928-5-20 8442 Humboldt Petrolia; Mattole Valley 60 Comment
  JEPS30545  Corethrogyne filaginifolia Peter H. Raven with R. Snow 1958-7-21 13658 Humboldt 2.0 mi n Cape Mendocino Comment
  UC1223040  Corethrogyne filaginifolia Joseph P. Tracy 1947-7-7 17759 Humboldt mouth of (n side) Mad River Comment
  RSA0019463  Cornus Doris K. Kildale 1937-8-29 15081 Humboldt Dinsmore's. Comment
  HSC56975  Cornus nuttallii Overton, Butler 1979-7-23 9509 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC95877  Cornus nuttallii Will Ferrand 2002-4-27 30 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  HSC99585  Cornus nuttallii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 250 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  JEPS50154  Cornus nuttallii W. L. Jepson 1936-8-11 17868 Humboldt <Philipsville> S. Fork Eel R., <Philipsville> Comment
  RSA697172  Cornus nuttallii J. R. Bruff 1937-8-17 919 Humboldt Richardson Grove. Comment
  CAS-BOT-BC212185  Cornus sericea Carl B. Wolf 1937-8-13 9251 Humboldt 11 mi. E. of Hoopa Valley on new road towards Trinity Summit, North Coast Range 1524 Comment
  HSC57681  Cornus sericea subsp. sericea G. L. Clifton, Griswold 1979-7-25 10887 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC502984  Cornus sessilis Joseph P. Tracy 1927-3-27 7857 Humboldt near S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  CDA1906  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt Northwestern; Outer North Coast Ranges region; 1100 acres, slope N above headquarters of Georgia Pacific Lumber Co. 0 Comment
  UC144109  Corylus californica J. P. Tracy 1909-7-18 3015 Humboldt Eureka Comment
  CAS-BOT-BC180313  Corylus cornuta subsp. californica L. B. Kildale 1926-9-5 2638 Humboldt Lasseck's Peaks - on trail between Canal Goat Camp and Red Peak 1676 Comment
  CAS-BOT-BC180314  Corylus cornuta subsp. californica L. B. Kildale 1927-7-10 3734 Humboldt Gans Prairie - Bold Hills road Comment
  HSC3480  Corylus cornuta subsp. californica D. E. Anderson 1962-3-17 1939 Humboldt Comment
  HSC56470  Corylus cornuta subsp. californica Griswold, Butler 1979-7-12 7298 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  OBI36662  Corylus cornuta subsp. californica David J. Keil 1983-7-2 17312 Humboldt Ca. 4 mi SE of SR 299 along Titlow HIll Rd below Horse Mtn Summit Rd Comment
  SEINET12031408  Corylus cornuta var. californica F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -282 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC5427  Cotula coronopifolia R. T. Forester 1963-4-29 42 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  UC1223033  Cotula coronopifolia Joseph P. Tracy 1948-5-31 17986 Humboldt Robertson's Sheep Ranch halfway between Garberville and Harris; Robertson's Ranch 609 Comment
  CAS-BOT-BC291341  Cotula coronopifolia C. L. Hitchcock; J. S. Martin 1939-7-14 5434 Humboldt Above pier at Shelter Cove Comment
  HSC43416  Cotula coronopifolia R. Sutherland 1978-2-18 5 .18278 Humboldt S side mouth of Mattole River 8 Comment
  CAS-BOT-BC291492  Crepis capillaris Alice Eastwood 1923-8-16 12327 Humboldt Carlotta Comment
  UC1199454  Crepis capillaris Joseph P. Tracy 1914-6-14 4501 Humboldt Carlotta Hydesvill (near Hydesville); Northern Coast Region 60 Comment
  CAS-BOT-BC291485  Crepis capillaris Carl B. Wolf 1927-8-28 1188 Humboldt Salt Marsh Eureka Bay on road to Arcata Comment
  RSA95100  Crepis capillaris F. W. Peirson 1923-7-11 3936 Humboldt flats N of Eureka. Comment
  SEINET2145774 Image available Crepis pleurocarpa Unknown 1933-7-25 12826 Humboldt Horse Mountain 1430 Comment
  RSA113707  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek, near the mouth in woods along an old road 152 Comment
  UCD130982  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek. 152 Comment
  SEINET10578683  Croton setiger Daniel K. Harder 1994-10-4 Harder 2495 Humboldt Ca. 6 km W/SW of Fort Seward along Fort Seward Road along middle ridge (near powerlines), collections from rock outcrops in cattle pasture with islands of redwoods and Umbellaria; near small spring in hillside. 570 Comment
  HSC58122  Cryptantha affinis G. L. Clifton, Griswold 1979-8-1 12093 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC99133  Cryptantha affinis Cara Witte 2007-5-29 139 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  UC32552  Cryptantha flaccida Hy-Am Pum Jul 1888 Humboldt Comment
  HSC57211  Cryptantha torreyana Griswold, Butler 1979-7-12 7246 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC162944  Cupressus lawsoniana Joseph P. Tracy 1911-7-6 3341 Humboldt mountain slopes along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  MACF017398  Cupressus macrocarpa Trudy R. Ericson 1974-8-6 204 Humboldt Off U.S. 101, exit to Patrick's Beach State Park, near Seaward Drive. Comment
  UC562474  Cuscuta campestris Joseph P. Tracy 1933-8-25 12996 Humboldt near mouth of Eel River; Centerville Beach 6 Comment
  HSC35596  Cuscuta occidentalis Thomas W. Nelson, Jane Nelson, James Nelson 1975-7-15 2007 Humboldt French Camp, Bald Hills Comment
  HSC57970  Cuscuta occidentalis G. L. Clifton, Griswold 1979-7-31 11699 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1197868  Cuscuta occidentalis Joseph P. Tracy 1949-8-4 18409 Humboldt Mud Springs Trinity Summit 1341 Comment
  UC562675  Cuscuta occidentalis Joseph P. Tracy 1930-8-17 9160 Humboldt Big Lagoon 3 Comment
  RSA249509  Cuscuta salina R. F. Thorne, P. C. Everett 1965-8-8 35280 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  UC922013  Cynodon dactylon Joseph P. Tracy 1949-8-18 16427 Humboldt Eureka 15 Comment
  HSC74112  Cynoglossum grande R. York 1980-5-23 634 Humboldt Near Buck Mtn. 1524 Comment
  UC54747  Cynoglossum grande Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5428 Humboldt between Hubbard's Station and Elk Prairie; North Coast Ranges Comment
  UC1145094  Cynosurus echinatus Joseph P. Tracy 1950-6-23 18865 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); Dobbyn Creek 213 Comment
  UC213326  Cyperus bipartitus Joseph P. Tracy 1920-8-15 5383 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  UC668036  Cyperus squarrosus Joseph P. Tracy 1931-9-7 9662 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  JEPS35194  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt S. Fork Eel River Comment
  HSC14664  Cytisus scoparius var. andreanus W. F. Nickel 1965-5-17 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir, near Jolly Giant Parking Lot. Comment
  CAS-BOT-BC189762  Dactylis glomerata Doris K. Kildale 1927-6-26 3591 Humboldt Patrick's Point. Comment
  HSC9530  Dactylis glomerata R. D. Zortman 1963-4-14 30 Humboldt 5.0 mi. NE of Arcata, off Warren Creek Road. 91 Comment
  SEINET3926894  Dactylis glomerata Thomas Nelson, Jane P. Nelson 1976-7-26 3022 Humboldt Trinity-Humboldt Co. line. growing on road cut of 1S07 on serpentine west of Black Lassic.; 0 1615 Comment
  UCSC000025  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E. of the Mad River Mad River - Eureka 30 Comment
  CAS-BOT-BC189735  Danthonia californica Alice Eastwood; John Thomas Howell 1937-6-22 4734 Humboldt Near Alder Point. Comment
  CAS-BOT-BC189742  Danthonia californica Joseph P. Tracy 1930-7-10 8860 Humboldt Northern Coast Ranges. Brannan Mountain. 1219 Comment
  UC37946  Danthonia californica Harley P. Chandler May, 1901 1239 Humboldt North Coast Ranges; Redwood Belt 91 Comment
  UC526850  Danthonia californica Joseph P. Tracy 1934-7-12 13377 Humboldt Big Lagoon 3 Comment
  UC154245  Daucus pusillus J. P. Tracy 1900-7-4 887 Humboldt Ocean Beach at Samoa opposite Eureka Comment
  JEPS15999  Daucus pusillus W. L. Jepson 1902-6 1963 Humboldt Redwood Creek, Hupa Rd. Comment
  CHSC79694  Delairea odorata Gordon Leppig 2000-2-15 1284 Humboldt McKinleyville. School Road 1/2 mile west of Central Ave. UTM zone 10, 4532N, 406E. 30 Comment
  UC1196317  Delphinium andersonii Joseph P. Tracy 1930-6-21 8778 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  HSC24971  Delphinium decorum subsp. tracyi Gerald T. Rood 1962-5-11 6 Humboldt Knneland Rd. 1.0 mi. W of Barry Rd. Comment
  UC1225748  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC74627  Delphinium nudicaule M. A. Baker 1980-5-17 1251 Humboldt Near Le Perron Peak 1066 Comment
  HSC98172  Delphinium nudicaule Allan R. Marshall 1962-5-11 9 Humboldt 50 yds. in front of N side of Hwy. 299 610 Comment
  HSC32132  Delphinium nuttallianum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5603 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC503038  Delphinium nuttallianum Joseph P. Tracy 1929-4-28 8556 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC121973  Delphinium trolliifolium E. K. Balls; L. W. Lenz 1955-5-15 20736 Humboldt 9.9 mi. SW from Fernbridge, along Old Coast road to Capetown 502 Comment
  RSA259574  Delphinium trolliifolium Thomas W. Nelson, James Nelson 1973-5-28 942 Humboldt McKeown Ranch north of Dinsmore. Comment
  JEPS5768  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  UC503029  Delphinium trolliifolium Joseph P. Tracy 1931-4-19 9334 Humboldt hillside near Alton; Northern Coast Ranges 91 Comment
  POM207102  Deschampsia cespitosa Jos Burtt Davy, W. C. Blasdale 6194 Humboldt Lake Mendocino Comment
  SEINET4566835  Deschampsia cespitosa J. Davy, W. Blasdale 1899-1 6213 Humboldt Eureka Comment
  UC1131487  Deschampsia cespitosa subsp. beringensis H. L. Person 1932-5-11 Humboldt near Arcata Arcata; Eureka Quad. Comment
  HSC96496  Deschampsia cespitosa subsp. cespitosa Gordon Leppig 1998-7-19 983 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 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
  UC1131481  Deschampsia cespitosa subsp. holciformis H. S. Yates 1936-6-16 5677 Humboldt 1 mi. n.e. Samoa; Eureka Quad. Comment
  UC183580  Deschampsia danthonioides Joseph P. Tracy 1912-7-25 3832 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC102212  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1128 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC58678  Descurainia incana G. L. Clifton, Terry Griswold 1979-8-2 12201 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UCD114222  Dicentra formosa James P. Smith 1973-5-5 6480 Humboldt Along Cook and Green Pass Road. Comment
  CAS-BOT-BC402402  Dicentra formosa subsp. formosa Mrytle Paulson 1918-4-18 s.n. Humboldt Eureka Comment
  HSC98563  Dicentra pauciflora Cara Witte 2008-6-13 729 Humboldt Forest Service Road 4N32. 2 miles west of intersection with Forest Service Road 5N04. 1514 Comment
  CAS-BOT-BC209193  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  CAS-BOT-BC208956  Dichanthelium oligosanthes subsp. scribnerianum Joseph P. Tracy 1927-8-7 8314 Humboldt Willow Creek, Trinity River Valley 152 Comment
  SEINET200695  Dichelostemma X venustum Joseph P. Tracy 1923-7-4 6524 Humboldt Valley of South Yager Creek 762 Comment
  JEPS64174  Dichelostemma capitatum Joseph P. Tracy 1925-5-30 7028 Humboldt Laribee Valley Northern Coast Ranges 701 Comment
  UC1198165  Dichelostemma capitatum Joseph P. Tracy 1922-4-30 5995 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA0031358  Dichelostemma capitatum subsp. capitatum Hutchinson 1927-05 s.n. Humboldt Unspecified. Comment
  HSC97967  Dichelostemma congestum Cara Witte 2007-7-2 392 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1406 Comment
  UC666883  Dichelostemma congestum Joseph P. Tracy 1927-5-8 7965 Humboldt Phillipsville South Fork of Eel River 121 Comment
  RSA755796  Dichelostemma congestum Barbara Ertter, Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just west of Berry Summit on Highway 299. 915 Comment
  SD211495  Dichelostemma congestum Barbara Ertter, Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just West of Berry Summit on Highway 299 914 Comment
  CHSC2082  Dichelostemma ida-maia A. Small 1954-5-1 Humboldt Near Honey-dew Comment
  SBBG892  Dichelostemma ida-maia K. K. Muller 1954-6-21 628 Humboldt Mad River Camp 2 on Mad River Comment
  UC1133927  Dichelostemma ida-maia A. E. Wieslander 1931-5-15 191 Humboldt Hoopa Indian Reservation Hoopa Quad. Comment
Read comments
May 14 2010
  HSC3027  Dichelostemma ida-maia H. E. Parks, S. T. Parks Jun 1928 259 Humboldt Gills 305 Comment
  JEPS5679  Dichelostemma ida-maia Milo S. Baker 1923-7-20 47 b Humboldt near head of Yager Creek Comment
  JEPS5685  Dichelostemma ida-maia Joseph P. Tracy 1923-7-4 6524 Humboldt Northern Coast Ranges, valley of S. Yager Creek 762 Comment
  HSC71603  Dichelostemma multiflorum M. A. Baker 1980-6-26 2408 Humboldt Near Sims Creek 610 Comment
  CHSC1743  Digitalis purpurea M. Anthony 1960-5-14 Humboldt N. of Arcata, Highway 101. Comment
  HSC44761  Digitalis purpurea Maralyn O'Meara 1972-6-8 94 Humboldt Along Bald Hills Rd., 8 mi. E of junction with Hwy. 101 Comment
  CAS-BOT-BC150343  Diplacus aurantiacus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC153235  Diplacus kelloggii Duart V. Brown 1947-4-2 33 Humboldt Near Sweed Creek, Trinity River Comment
  CAS-BOT-BC153325  Diplacus layneae Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  HSC62879  Dipsacus fullonum J. M. DiTomaso 1979-5-20 1042 Humboldt Arcata, Hwy. 101 at Guintoli Rd. Comment
  HSC7538  Dipsacus fullonum Wm. F. Bowman 1968-11-9 Humboldt Beach front of Mad River Rd. Comment
  UC535766  Disporum hookeri Eleanor Armstrong 1934-5-27 Humboldt Richardson Grove Comment
  UC1197656  Disporum hookeri Joseph P. Tracy 1924-4-27 6648 Humboldt Redwood Creek, at Berry's Redwood Creek; Northern Coast Ranges, , Berry's 274 Comment
  POM277202  Disporum hookeri var. hookeri Lyman Benson 1928-7-11 163 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  CAS-BOT-BC208662  Distichlis spicata David D. Keck 1938-8-5 4769 Humboldt Big Lagoon Comment
  CHSC31322  Distichlis spicata Mark Stopher 1980-6-4 83 Humboldt Along Elk River near Rte 101 bridge. 1 Comment
  HSC2192  Distichlis spicata J. P. Tracy 1933-8-22 12989 Humboldt Mouth of Eel River. 3 Comment
  HSC48767  Dodecatheon jeffreyi Brad Klipfel 1973-6-10 88 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC39929  Draperia systyla J. O. Sawyer 1970-6-25 2301 Humboldt 1646 Comment
  UC203639  Drosera rotundifolia Joseph P. Tracy 1918-7-21 5084 Humboldt Humboldt Hill Northern Coast Ranges, Region about Humboldt Bay (small bog on n slope) 91 Comment
  HSC76190  Drymocallis glandulosa var. reflexa Overton, Butler 1979-7-24 9773 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC57624  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-7-25 10758 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC99640  Dryopteris arguta T. Jimerson, J. Pageau 1979-7-31 700 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  HSC26463  Dudleya farinosa T. O. Osborne 1970-7-18 21 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  UCD60951  Echinochloa crus-pavonis Collector unknown 1926-7-1 Humboldt Annie Wilson Ranch, Alderpoint. Comment
  JEPS19332  Eleocharis acicularis Joseph P. Tracy 1937-8-12 15626 Humboldt Bald Mountain, at Lake Prairie 1066 Comment
  HSC7324  Eleocharis pachycarpa J. P. Tracy, H. E. Parks 1931-6-7 9569 Humboldt Trinidad 61 Comment
  UC1103650  Eleocharis parishii Joseph P. Tracy 1927-5-14 8010 Humboldt near S fork Trinity River Valley 182 Comment
  BLMAR37  Elymus Brad Barr 37 Humboldt King range Comment
  UC526784  Elymus X hansenii Joseph P. Tracy Jul 16 1930-Jul 19 1930 9054 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC38635  Elymus X vancouverensis D. E. Anderson, J. P. Smith 1971-6-28 - 1260 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC40329  Elymus glaucus Thomas W. Nelson 1976-7-9 2993 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  HSC9716  Elymus glaucus D. C. Juve 1964-5-16 44 Humboldt Campbell Creek Ranger Station, Camp Tish-Tang, Hwy 96. Comment
  HSC9718  Elymus glaucus D. E. Anderson, T. O. Preston 1963-3-1 19 Humboldt Near bridge over Supply Creek. Comment
  SEINET10930717  Elymus glaucus Joseph P. Tracy 1912-6-9 Tracy 3659 Humboldt Alton. 30 Comment
  SEINET11683186  Elymus glaucus K. S. Erdman 1970-1 4849 Humboldt Redwood National Park, Redwood Creek, about 2-3 mi above the road end, near McArthur & Elam Creeks Comment
  CAS-BOT-BC203479  Elymus glaucus subsp. glaucus Doris K. Kildale 1929-5-26 9133 Humboldt Klamath River at Orleans 152 Comment
  CAS-BOT-BC203480  Elymus glaucus subsp. glaucus Doris K. Kildale 1929-6-24 7065 Humboldt Redwood Creek at Berry's Comment
  UC1196733  Elymus multisetus Joseph P. Tracy 1919-5-31 5160 Humboldt Willow Creek Northern Coast Ranges (gravel bar, near its mouth (creek is a tributary of Trinity River)) 152 Comment
  UC523866  Elymus multisetus Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1346 Humboldt near bridge on Trinity Highway; Floodplain of Trinity River 152 Comment
  CHSC32975  Elymus trachycaulus subsp. trachycaulus Thomas Nelson; Jane Nelson 1976-7-26 3023 Humboldt The Lassics. Trinity-Humboldt Co. line. Road cut along 1S07 west of Black Lassic. 1615 Comment
Read comments
Dec 11 2010
  UCD117423  Empetrum nigrum subsp. hermaphroditum James Payne Smith Jr. 1975-3-31 8048 Humboldt Megwill Point on Elk Head, just north of College Cove. Comment
  JEPS31518  Epilobium brachycarpum Joseph P. Tracy 1933-8-6 12942 Humboldt French Camp Ridge 1066 Comment
  RSA40412  Epilobium brachycarpum P. A. Munz 1948-8-13 12348 Humboldt Highway 229, 21 miles E of Blue Lake. 762 Comment
  CAS-BOT-BC166893  Epilobium canum subsp. latifolium Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CDA18995  Epilobium canum subsp. latifolium P. Haggard 2000-9-18 PDR P 071016 Humboldt Along U.S.F.S Rd. 1, in the vicinity of Blue Lake. 0 Comment
  HSC55317  Epilobium canum subsp. latifolium Griswold, Butler 1979-7-10 7102 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC49645  Epilobium ciliatum subsp. glandulosum J. P. Smith, Steve Selva 1970-6-30 4138 Humboldt Comment
  RSA755158  Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. Everett 1965-8-5 35153 Humboldt Samoa Dunes. 3 Comment
  HSC16316  Epilobium densiflorum D. E. Anderson 1962-7-14 2253 Humboldt About 3 mi. E of Kneeland Comment
  JEPS31500  Epilobium foliosum Joseph P. Tracy 1939-5-30 16302 Humboldt Dinsmore's Ranch Northern Coast Ranges, Van Duzen River (opposite Buck Mountain) 670 Comment
  UC1197005  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1920-8-15 5381 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  HSC39234  Epilobium minutum D. E. Anderson, J. P. Smith 1971-7-6 - 1273 Humboldt Horse Mtn. Comment
  HSC70924  Epilobium minutum R. York 1980-5-18 574 Humboldt Near Black Mtn 792 Comment
  HSC74235  Epilobium minutum M. A. Baker 1980-7-11 2792 Humboldt Near Red Mtn. 1341 Comment
  UC314614  Epilobium minutum Joseph P. Tracy 1926-6-20 7617 Humboldt Horse Mountain Northern Coast Ranges (along streamlets) 1524 Comment
  HSC36242  Equisetum arvense John Rehling 1975-5-12 73 Humboldt Near S end of Big Lagoon, growing along Hwy. 101 Comment
  UC1239789  Equisetum hyemale subsp. affine Joseph P. Tracy 1926-9-6 7795 Humboldt near S. Fork Trinity River Valley; Northern Coast Ranges 182 Comment
  POM281840  Equisetum hyemale var. affine Lyman Benson 1928-7-9 414 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  HSC100123  Equisetum laevigatum Thomas W. Nelson, Jane Nelson 1977-5-30 3406 Humboldt Back bay of Mad River at Anderson's Ford 640 Comment
  CHSC7104  Equisetum telmateia K. Cox 1969-4-1 6 Humboldt Patrick's Point St. Pk. At foot of Agate Beach trail. 1 Comment
  UC1239786  Equisetum telmateia subsp. braunii Joseph P. Tracy 1937-3-21 15235 Humboldt Van Duzen River near Grizzly Creek; Van Duzen River 91 Comment
  UC249801  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1923-9-10 6545 Humboldt Trinity River Valley near South Fork; Northern Coast Ranges, Trinity River Valley, nr South Fork 182 Comment
  RSA44366  Eragrostis pectinacea Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  UC1103227  Eragrostis pilosa var. pilosa Joseph P. Tracy 1920-8-15 5361 1/2 Humboldt Klamath River mouth of Bluff Creek (mouth of Bluff Creek); Northern Coast Ranges, , Bluff Creek 152 Comment
  HSC5490  Erechtites glomeratus H. E. Parks Aug 1941 24189 Humboldt Trinidad Comment
  UC581712  Erigeron aliceae Joseph P. Tracy 1933-8-30 13038 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1615 Comment
  UC1223139  Erigeron foliosus var. confinis Joseph P. Tracy 1950-8-8 19291 Humboldt area Granite Rock; Trinity Summit, Crogan Hole 1676 Comment
  UCR51797  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12358 Humboldt Van Duzen Redwood State Park 245 Comment
  HSC5562  Erigeron inornatus var. inornatus M. H Manning 1901-7-25 311 Humboldt Bald Hill near Hoopa Comment
  HSC98678  Erigeron inornatus var. inornatus Cara Witte 2007-7-26 590 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1283 Comment
  UC1223136  Erigeron inornatus var. inornatus Joseph P. Tracy 1949-8-11 18483 Humboldt 3 mi se of Snow Camp (at Twin Lakes); Twin Lakes 1463 Comment
  CHSC324  Erigeron philadelphicus A. Small 1954-6-7 Humboldt 1/2 mi. s. of Capetown. 60 Comment
  CDA4936  Erigeron philadelphicus Keith Miller, T. R. Haig 1960-6-13 4552 Humboldt 4 miles southeast of Carlotta 0 Comment
  POM288818  Erigeron philadelphicus Lyman Benson 1928-7-10 382 Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  HSC100375  Erigeron robustior D. Decker 2010-7-28 Humboldt Buck Project, Dinsmore. 976 Comment
  HSC81654  Erigeron robustior Thomas W. Nelson, Jane P. Nelson 1980-7-13 6056 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  CAS-BOT-BC300281  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt North Coast Ranges. Klamath River 243 Comment
  UC169013  Eriodictyon californicum Harley P. Chandler June, 1901 1352 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC55092  Eriogonum compositum G. L. Clifton, Griswold 1979-7-31 11779 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA331968  Eriogonum latifolium Dave Kelly 1985-7-28 4064 Humboldt Near Manila, Samoa Peninsula near Eureka. Comment
  SBBG53807  Eriogonum latifolium C. M. Hoak 1931-7-14 Humboldt above Eureka Comment
  UCD100336  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River. Comment
  HSC98381  Eriogonum luteolum var. luteolum R. Sutherland 1976-8-24 6 .24876 Humboldt 543 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
  HSC74288  Eriogonum nudum M. A. Baker 1980-7-23 3194 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC261495  Eriogonum nudum var. nudum Harley P. Chandler 1901-6-1 1491 Humboldt Klamath River 304 Comment
  HSC99018  Eriogonum nudum var. nudum Cara Witte 2008-7-14 902 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  OBI82417  Eriogonum nudum var. nudum Dennis Anderson, D Santana, J Lackey 1971-7-15 5265 Humboldt Trinity CO. : Along 1 SO 7, T 29 N, R 6 E, secs. 29, 30, along Shanty Creek, CA. 5 miles west of Ruth Dam. 1341 Comment
  HSC40826  Eriogonum strictum var. greenei Thomas W. Nelson, James Nelson 1976-7-26 3041 Humboldt Middle pk. of Mt. Lassic group 1738 Comment
  CAS-BOT-BC267968  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-23 14133 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  HSC98923  Eriogonum umbellatum var. goodmanii Cara Witte 2007-7-3 404 Humboldt Along National Forest 1 on Kinsey Ridge. 1299 Comment
  SEINET5333035  Eriogonum umbellatum var. nelsoniorum J. L. Reveal 2001-7-18 8346 Humboldt Along U.S. Forest Service Road 1 northwest of Grouse Mountain at milepost 14.3, about 10.3 air miles southwest of Salyer 1372 Comment
  UC1198157  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1932-7-12 10459 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  HSC76554  Eriogonum umbellatum var. polyanthum Teresa Prendusi 1981-7-24 517 Humboldt Near Whiteys Peak 1634 Comment
  HSC55029  Eriogonum umbellatum var. stellatum Overton, Butler 1979-7-31 11465 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC97920  Eriogonum umbellatum var. umbellatum Cara Witte 2007-6-14 270 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  UC581690  Eriophyllum lanatum var. achilleoides Harold E. Parks and Joseph P. Tracy 1934-6-27 11063 Humboldt Grouse Mt. 1432 Comment
  JEPS34628  Eriophyllum lanatum var. achilleoides Lincoln Constance 1934-5-23 622 Humboldt sw slope, upper end of Look Prairie; Bull Creek Region, South Fork Eel River, Look Prairie 365 Comment
  UC165849  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 Humboldt w side of river near Willow Creek; North Coast Ranges, Trinity River 304 Comment
  JEPS34643  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1933-8-6 12936 Humboldt French Camp Ridge Comment
  UC176463  Eriophyllum staechadifolium Joseph P. Tracy 1913-7-13 4361 Humboldt Patrick's Point Patrick's Point (bluffs facing ocean) 30 Comment
  UC204701  Eriophyllum staechadifolium Joseph P. Tracy 1918-7-1 4971 Humboldt 3 mi s of point Cape Mendocino (sw slopes fronting the ocean) 3 Comment
  UC1199173  Erysimum capitatum Joseph P. Tracy 1911-7-6 3350 Humboldt mt slopes along rd between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC85898  Erysimum capitatum var. capitatum Barry Silver 1986-4-23 528 Humboldt 9.5 mi. NW of junction with Hwy. 299, Pine Ridge Summit area 945 Comment
  HSC34457  Erysimum menziesii J. P. Smith, J. O. Sawyer 1975-5-11 8079 Humboldt Samoa Peninsula, just N of The Coast Guard Station boundary. Comment
  SEINET14045671 Image available Erythranthe nasuta Joseph P. Tracy 1914-1 4457 Humboldt Plants of Northern Coast Ranges of California; Fort Seward. 122 Comment
  HSC83469  Erythronium californicum R. N. Raynor 1935-4-8 Humboldt Fort Seward Comment
  JEPS502  Erythronium grandiflorum Joseph P. Tracy 1933-7-11 12708 Humboldt Grouse Mountain 1524 Comment
  JEPS61853  Erythronium grandiflorum W. L. Jepson 1902-7-16 2039 Humboldt Trinity Summit 2133 Comment
  UC1225861  Erythronium grandiflorum Joseph P. Tracy 1942-6-23 17255 Humboldt near Water Dog Lakes; Trinity Summit 1828 Comment
  JEPS79888  Erythronium oregonum Joseph P. Tracy 1918-5-1 4897 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC15504  Erythronium revolutum W. D. Stevens 1963-4-15 14 Humboldt 1.5 mi. W of Berry Summit on Hwy 299 Comment
  UC146200  Erythronium revolutum Joseph P. Tracy 1908-6-9 2661 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC403033  Eschscholzia californica L. R. Abrams 1916-7-11 6058 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  RSA167199  Eucephalus glabratus Joseph P. Tracy 1941-8-24 17043 Humboldt South Fork Mountain, near McKay Camp Comment
  HSC58769  Eucephalus ledophyllus Terry Griswold 1979-7-26 10299 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1196541  Euchiton involucratus Joseph P. Tracy 1948-9-26 18232 Humboldt 6 mi se Arcata (at s end of Fickle Hill); Fickle Hill 609 Comment
  HSC4304  Euonymus occidentalis D. E. Anderson 1961-9-23 1834 Humboldt 2.3 mi. S of Kneeland corner Comment
  POM208999  Euonymus occidentalis Lincoln Constance 1934-6-11 855 Humboldt Cabin Creek bridge on Dyerville-Bull Creek Flat road. Humboldt Redwood Park. 52 Comment
  UC30135  Euonymus occidentalis var. occidentalis W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  HSC96080  Euphorbia crenulata Andrew Byers, Stuart E. Richardson, III 2005-6-8 6 Humboldt 20 mi. S of Hwy. 299 on Titlow Hill Rd. 1032 Comment
  UC1198971  Euphorbia crenulata Joseph P. Tracy 1919-5-31 5156 Humboldt near Willow Creek (slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  HSC36589  Euphorbia peplus John Rehling 1975-5-4 55 Humboldt H.S.U. campus Comment
  UC1198977  Euphorbia spathulata Joseph P. Tracy 1930-6-15 8761 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC312206  Eurybia radulina Carl B. Wolf 1937-9-8 9301 Humboldt 11 mi. W. of Redwood Highway, Bull Creek - Petrolia Road, North Coast Range 304 Comment
  SEINET3244015  Euthamia occidentalis S. K. Harris, Charlotte Wilder 1938-1 879 Humboldt Bars of the Van Dusen River, above Blue Slide. Comment
  UC581767  Euthamia occidentalis Joseph P. Tracy 1931-9-7 9636 Humboldt Northern Coast Ranges, Trinity River Valley; Lack Pond, opposite mouth of Willow Creek 152 Comment
  HSC31183  Festuca californica D. E. Anderson 1972-6-20 5752 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC9849  Festuca californica D. E. Anderson 1965-5-1 3583 Humboldt Along road to Bluff Creek campground, about 3 mi from its junction with Hwy. 96 Comment
  UC34071  Festuca californica J. P. Tracy 1901-6-23 1175 Humboldt immediate vicinity Eureka 0 Comment
  POM206180  Festuca californica var. californica Joseph P. Tracy 1901-6-23 1175 Humboldt Immediate vicinity of Eureka. 0 Comment
  RSA123475  Festuca californica var. californica H. S. Yates 1936-6-22 5848 Humboldt Willow Creek, China Flat (Humboldt) Comment
  UCD65940  Festuca elmeri R. Tofsrud 1947-7-1 204 Humboldt Between Alder Point and Zinea. Comment
  HSC31224  Festuca occidentalis D. E. Anderson 1972-6-20 5723 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC72634  Festuca occidentalis J. P. Smith 1977-7-3 9249 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  UC53596  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5369 Humboldt near Harris 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
  SEINET200833  Festuca roemeri Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC278959  Festuca rubra Richard W. Pohl 1963-6-2 9452 A Humboldt Sea beach, Trinidad Beach State Park Comment
  HSC83339  Festuca rubra Andrea Pickart 1987-6-26 Humboldt Arcata, Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata. Comment
  HSC81919  Festuca subulata Thomas W. Nelson, Jane P. Nelson 1979-7-3 4968 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  POM126172  Festuca subuliflora Joseph P. Tracy 1900-5-22 801 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC188848  Festuca subuliflora J. Burtt Davy and W. C. Blasdale 1899-6-13 5494 Humboldt Camp Grant North Coast Ranges Comment
  SEINET10559495  Festuca subuliflora Joseph P. Tracy 1901-6-10 Tracy 1134 Humboldt At Eureka, wooded hillside. 0 Comment
  HSC18618  Fragaria X ananassa C. O. Baker 1962-3-22 7 Humboldt 2 mi. S of Trinidad along old Hwy. 101 183 Comment
  CAS-BOT-BC453520  Fragaria chiloensis David D. Keck; J. Clausen 1935-6-16 3390 Humboldt Mouth of Little River Comment
  CAS-BOT-BC453524  Fragaria chiloensis Bolemanson 1908-5-15 s.n. Humboldt Samoa Comment
  HSC33746  Fragaria chiloensis A. Montalvo 1975-5-24 285 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC45585  Fragaria chiloensis Diane L. Reed 1978-4-29 41 Humboldt Trinidad Head Comment
  UC1198723  Fragaria vesca Joseph P. Tracy 1935-7-25 14237 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  HSC61635  Fragaria virginiana Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte Co. line, Onion Lake 1067 Comment
  CAS-BOT-BC53402  Frangula californica subsp. occidentalis Doris K. Kildale 1925-8-13 1115 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  CAS-BOT-BC59967  Frangula purshiana H. E. McMinn 1922-8-5 347 Humboldt Along Van Duzen River Comment
  HSC61031  Frangula purshiana T. Jimerson, J. Pageau 1979-8-10 730 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC89485  Frangula purshiana P. A. Daly 1984-5-13 19 Humboldt Along trail at Trinidad Head 61 Comment
  CAS-BOT-BC136026  Fritillaria affinis R. C. Barneby 1954-5-19 11571 Humboldt Forested ridge, 13 miles w. of Fort Seward 640 Comment
  HSC100646  Galium Carl C. Marshall Jun 1886 49 Humboldt Pilot Creek. Comment
  HSC71743  Galium ambiguum M. A. Baker 1980-6-26 2427 Humboldt Near Sims Creek 610 Comment
  HSC22537  Galium aparine D. E. Anderson, J. P. Smith 1970-5-10 5059 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC81605  Galium aparine Thomas W. Nelson, Jane P. Nelson 1980-5-25 5261 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  POM148009  Galium aparine J. B. Feudge 1923-7-29 727 Humboldt Rohnerville. 15 Comment
  HSC19850  Galium aparine J. W. Johnson 1962-4-18 1262 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  HSC70981  Galium bolanderi Gail Newton 1980-7-22 1664 Humboldt Near Devils Backbone 1554 Comment
  UC169002  Galium bolanderi Joseph P. Tracy 1911-7-6 3361 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC213147  Galium boreale subsp. septentrionale Joseph P. Tracy 1920-8-15 5357 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  RSA698804  Galium californicum J. R. Bruff 1937-8-17 916 Humboldt Richardson Grove. Comment
  UC1196106  Galium californicum subsp. californicum Joseph P. Tracy 1942-5-16 17329 Humboldt along river half way between Miranda and Garberville; S. Fork Eel River 121 Comment
  HSC69762  Galium divaricatum Thomas W. Nelson, Jane P. Nelson 1977-9-4 3746 Humboldt Willow Creek Comment
  HSC45640  Galium muricatum Diane L. Reed 1978-5-7 57 Humboldt Fourmile Creek, 4 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  JEPS52823  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3852 Humboldt 1/2 mi e Dinsmores (on Hwy 36) 731 Comment
  JEPS52848  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3858 Humboldt 6.8 mi w mouth of Bull Creek; Bull Creek (settlement) 91 Comment
  UC1173701  Galium parisiense Joseph P. Tracy 1939-8-5 16378 Humboldt Dinsmore's 731 Comment
  HSC39330  Galium parisiense J. P. Smith 1976-10-30 8994 Humboldt Mad River, E of Essex Lane exit. Comment
  HSC61873  Galium parisiense Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  RSA256488  Galium parisiense Joseph P. Tracy 1911-7-4 3278 Humboldt Valley of Trinity River near mouth of Willow Creek. 152 Comment
  HSC99319  Galium porrigens var. porrigens C. B. Wolf 1927-8-30 1225 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  UC1196080  Galium trifidum Joseph P. Tracy 1903-8-9 1944 Humboldt Eureka Northern Coast Region 0 Comment
  UC168962  Galium triflorum Joseph P. Tracy 1907-6-20 2570 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS20468  Gamochaeta coarctata Joseph P. Tracy 1936-8-1 15057 Humboldt 6 mi se Blue Lake; Canyon Creek 365 Comment
  CAS-BOT-BC303400  Gamochaeta ustulata Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC72784  Garrya buxifolia M. A. Baker 1980-7-11 2798 Humboldt Near Red Mtn. 1341 Comment
  HSC39952  Garrya elliptica Linda M. Barker 1976-1-24 1310 Humboldt 3 mi. W of Arcata Comment
  UC154057  Garrya elliptica J. P. Tracy 1901-2-22 993 Humboldt immediate vicinity Eureka 0 Comment
  UC1541254  Garrya elliptica Harold E. Parks Mar 1933 1403 Humboldt near Trinidad Comment
  UC162337  Garrya elliptica J. P. Tracy 1911-10-22 3549 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC182171  Garrya fremontii Doris K. Kildale 2957 Humboldt McDowell Buttes near Kneeland 914 Comment
  HSC8400  Garrya fremontii D. E. Anderson 1965-4-24 3537 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  SEINET11677850  Gastridium phleoides H. P. Chandler 1901-1 1506 Humboldt Klamath River, North Coast Ranges 427 Comment
  SEINET12518332 Image available Gastridium ventricosum Harley P. Chandler 1901-1 1506 Humboldt Klamath River, North Coast Ranges 427 Comment
  HSC31810  Gaultheria shallon Steve Selva, Roger Jensen 1974-8-21 26 Humboldt Redwood grove adjacent to Hwy. 101 rest stop, ca. 3 mi. N of Trinidad Comment
  HSC37335  Gaultheria shallon Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 480 Humboldt Along Lost Man Creek. 38 Comment
  HSC7812  Gaultheria shallon J. Pursell 1964-11-1 1111 Humboldt Hoopa Valley Hwy. 96 Comment
  POM285360  Gaultheria shallon Lyman Benson 1928-7-10 583 Humboldt Clam Beach, Trinidad. 8 Comment
  RSA46828  Gaultheria shallon Doris K. Kildale 1926-1-3 1465 Humboldt Big Lagoon road near Trinidad. Comment
  UCD20675  Gaultheria shallon A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Redwood National Park, Hwy 101 reroute, +- 1000' elevation. -304 Comment
  HSC16392  Gayophytum diffusum J. P. Tracy 1936-8-8 15137 Humboldt Trinity Summit, ridge 2 mi. E of Grove's Prairie 1524 Comment
  JEPS27564  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9051 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC162343  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1911-7-10 3491 Humboldt Willow Creek Northern Coast Ranges, valley of Trinity River (river bar at mouth) 152 Comment
  HSC99579  Gayophytum humile K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 244 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  JEPS47045  Gentiana affinis var. ovata W. L. Jepson 1921-8-11 9411 Humboldt Big Lagoon, Humboldt coast Big Lagoon Comment
  HSC58091  Gentiana plurisetosa G. L. Clifton, Griswold 1979-8-1 12004 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC12414  Gentiana sceptrum D. Santana 1970-10-14 35 Humboldt Big Lagoon Bog Comment
  UC275299  Gentiana sceptrum R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UC1197403  Geranium dissectum Joseph P. Tracy 1909-7-31 3043 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC630470  Geranium dissectum H. E. and S. T. Parks Apr 1938 24118 Humboldt Spruce Cove Trinidad 60 Comment
  HSC99248  Geranium molle T. Beck 1963-4-27 42 Humboldt Camp Bauer, Korbel Comment
  UC249572  Geranium oreganum Joseph P. Tracy 1922-6-18 6094 Humboldt Head of Middle Yager Creek Northern Coast Ranges 762 Comment
  HSC12777  Geranium retrorsum Jana Kattenhorn 1970-10-24 140 Humboldt Arcata, HSU campus, S of Harpst St. Comment
  HSC70696  Gilia capitata Gail Newton 1980-7-15 1557 Humboldt Near Sims Mtn. 1311 Comment
  HSC97970  Gilia capitata subsp. capitata Cara Witte, Michael Scott 2007-6-22 346 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  UC1197929  Gilia capitata subsp. capitata Joseph P. Tracy 1908-6 2751 Humboldt nw slope of Buck Mountain , nw slope Buck Mountain (Northern Coast Ranges) 457 Comment
  UC907950  Gilia capitata subsp. capitata Joseph P. Tracy 1935-7-29 14345 Humboldt brushy ridge 1 mi ne Ranger Station (Trinity Summit); Trinity Summit 1676 Comment
  RSA21031  Gilia capitata subsp. pacifica C. B. Wolf 1937-8-11 8901 Humboldt Fleener Creek, 0.5 mile south of Centerville. 46 Comment
  RSA46733  Gilia capitata subsp. pacifica Doris K. Kildale 1927-7-1 s.n. Humboldt Alton Hill Comment
  UC1197926  Gilia capitata subsp. pacifica Joseph P. Tracy 1930-5-25 8725 Humboldt Bridgeville 198 Comment
  HSC16986  Gilia tricolor J. E. Lankila 1962-5-6 26 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  HSC103275  Githopsis specularioides John McRae 2014-5-23 Humboldt Six Rivers National Forest, Hennessy Peak Quad, Forest Service Road 6N20 to Oak Knob. 829 Comment
  HSC44404  Githopsis specularioides R. York 1978-5-6 156 Humboldt 4 mi. W of Hwy. 96, on Bluff Creek Rd. 610 Comment
  UC179951  Glechoma hederacea Joseph P. Tracy 1914-5-17 4475 Humboldt ridge between Freshwater and Ryans Slough (at abandoned Cumens claim); Northern Coast Region, Humboldt Bay Region 304 Comment
  CAS-BOT-BC218475  Glehnia littoralis subsp. leiocarpa H. D. Ripley; R. C. Barneby 1945-6-18 6807 Humboldt Trinidad 6 Comment
  UC642340  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1927-6-26 8207 Humboldt Stone Lagoon 6 Comment
  RSA550922  Glyceria declinata R. F. Thorne, P. Everett 1965-8-9 35331 Humboldt Clam Beach County Park: along highway. 3 Comment
  CAS-BOT-BC280551  Glyceria elata Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  HSC76548  Glyceria elata Denis Kearns 1981-7-23 433 Humboldt Near Whiteys Peak. 1524 Comment
  UC207736  Glyceria elata Joseph P. Tracy 1916-6-25 4748 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges, Redwood Creek 152 Comment
  UCD57077  Glyceria occidentalis Joseph P. Tracy 1942-6-2 17090 Humboldt Loleta. 9 Comment
  UCD66776  Glyceria occidentalis A. A. Beetle; J. P. Tracy, G. L. Stebbins Jr. 1942-6-2 3461 Humboldt Loleta Swamp, south of Eureka. Comment
  SEINET7292867 Image available Glyceria occidentalis Joseph P. Tracy 1942-1 17090 Humboldt Loleta Comment
  HSC40385  Glyceria striata Thomas W. Nelson, James Nelson 1976-7-28 3078 Humboldt W of Alder Springs. 1524 Comment
  RSA151817  Glyceria striata H. K. Sharsmith, Francia Chisaki 1959-8-22 4756 Humboldt At Happy Camp. Just over Trinity County line. 915 Comment
  HSC58110  Gnaphalium palustre G. L. Clifton, Griswold 1979-8-1 12058 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC103605  Gnaphalium palustre Thomas W. Nelson, Jane Nelson 1985-8-5 8000 Humboldt Eureka; along old logging road just east of Lundbar Hills. 46 Comment
  CDA6062  Gnaphalium stramineum T. C. Fuller 1961-9-28 7059 Humboldt 1.5 miles south of Samoa. 0 Comment
  UC1212573  Goodyera oblongifolia Francia Chisaki, Helen Sharsmith 1959-8-22 4757 Humboldt Inner North Coast Ranges, Happy Camp, just over line from Trinity County Happy Camp Happy Camp; Inner North Coast Ranges, Happy Camp 914 Comment
  UC13521  Goodyera oblongifolia Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5612 Humboldt near Acorn; North-Western California Comment
  UC582587  Gratiola ebracteata Joseph P. Tracy 1935-5-25 13840 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC304749  Grindelia hirsutula Doris K. Kildale 1925-7-10 944 Humboldt Dyerville 45 Comment
  JEPS25801  Grindelia hirsutula L. R. Heckard 1960-8-31 1220 Humboldt s end Dry Lagoon Beach State Park Comment
  UC1174870  Grindelia hirsutula P. C. Everett and E. K. Balls 1959-10-25 23967 Humboldt 6 mi ne Eureka (U.S. Hwy 101) 1 Comment
  UC370617  Grindelia hirsutula J. P. Tracy 1925-8-30 7255 Humboldt Big Lagoon Comment
  UC665534  Grindelia hirsutula H. E. Parks Aug 1 1941-Sep 1 1941 24201 Humboldt near Arcata Comment
  BLMAR308  Grindelia stricta Jennifer Anthony-Wheeler 2002-7-1 308 Humboldt South Spit 6 Comment
  HSC56456  Hackelia bella Griswold, Butler 1979-7-12 7233 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  RSA249328  Hackelia bella D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  UC525562  Hackelia californica Joseph P. Tracy 1932-7-12 10428 Humboldt Corral Prairie; Klamath Mountains. Trinity Summit 1524 Comment
  HSC48770  Hackelia micrantha Brad Klipfel 1973-6-10 50 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC582621  Hackelia setosa Joseph P. Tracy 1937-7-2 15397 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  UC303042  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1463 Comment
  HSC52152  Helenium bigelovii Griswold, Butler 1979-7-11 7007 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC58345  Helenium bigelovii Overton, Butler 1979-8-2 12673 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC34534  Helenium bigelovii Chestnut and Drew 1888-8-7 Humboldt Lake Prairie Comment
  HSC96470  Helenium bolanderi Gordon Leppig 1997-6-19 454 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC96487  Helenium bolanderi Gordon Leppig 1997-8-3 632 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  RSA20846  Helenium bolanderi C. B. Wolf 1937-6-18 8886 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  HSC100435  Helenium puberulum Carl C. Marshall Jul 1886 350 Humboldt Liscom's Hill. Comment
  CAS-BOT-BC306037  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 304 Comment
  CAS-BOT-BC306180  Hemizonia congesta subsp. congesta Carl B. Wolf 1927-8-29 1218 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  CAS-BOT-BC306183  Hemizonia congesta subsp. congesta J. Clausen 1932-9-18 679 Humboldt 4 miles southwest of Capetown on the road to Petrolia 213 Comment
  CAS-BOT-BC306184  Hemizonia congesta subsp. congesta J. Clausen 1932-9-18 679 Humboldt 4 miles southwest of Capetown on the road to Petrolia 213 Comment
  CAS-BOT-BC309982  Hemizonia congesta subsp. tracyi A. G. Vestal 1937-6-20 s.n. Humboldt 4 miles north of Petrolia Comment
  CAS-BOT-BC309995  Hemizonia congesta subsp. tracyi Carl B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  UC180240  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC673047  Heracleum lanatum Joseph P. Tracy 1940-9-26 16730 Humboldt s. end Humboldt Bay (Salmon Creek Valley); , Salmon Creek Valley 9 Comment
  JEPS32319  Hesperolinon micranthum W. L. Jepson 1902-6 1976 Humboldt Three Creeks to Willow Creek (on expedition from Ukiah to the Hupa Indian Reservation) Comment
  HSC98091  Heterocodon rariflorum Cara Witte 2007-7-11 476 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  SEINET10460657  Heterocodon rariflorum Tracy TRACY 17158 Humboldt GARBERVILLE Comment
  CAS-BOT-BC143654  Heteromeles arbutifolia Doris K. Kildale 1927-12-1 4214 Humboldt Klamath River at Orleans Comment
  CAS-BOT-BC143656  Heteromeles arbutifolia Doris K. Kildale 1926-6-13 2163 Humboldt Briceland Bridge, 1/2 mile west of Garberville 114 Comment
  CAS-BOT-BC311057  Heterotheca oregona var. oregona Doris K. Kildale 1926-5-31 2025 Humboldt Miranda, on South Fork of Eel River Comment
  CAS-BOT-BC311075  Heterotheca oregona var. rudis Doris K. Kildale 1926-8-8 2478 Humboldt Dyerville Bridge 45 Comment
  UC581756  Heterotheca oregona var. rudis Joseph P. Tracy 1930-7-27 9112 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC902009  Heuchera micrantha var. macropetala Joseph P. Tracy 1948-8-15 18139 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC56932  Hieracium albiflorum G. L. Clifton, Butler 1979-7-26 9368 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC98324  Hieracium albiflorum Jimerson, J. Pageau 1979-5-24 469 Humboldt Near Orleans 226 Comment
  UC582416  Hieracium albiflorum Joseph P. Tracy 1929-7-4 8613 Humboldt French Camp Ridge 1066 Comment
  HSC95113  Hieracium albiflorum Andrea Pickart 2002-6-30 130 Humboldt Lamphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  HSC102077  Hieracium greenei M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 979 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  POM360469  Hieracium greenei Thomas W. Nelson, Jane P. Nelson 1977-8-6 3714 Humboldt Along the lower south slope of Mt. Lassic (Signal Peak). 1494 Comment
  JEPS70574  Hierochloe occidentalis Milo S. Baker 1923-7-20 60 Humboldt Redwood House Road Comment
  POM118322  Hierochloe occidentalis Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  SDSU1120  Hierochloe occidentalis Wayne A. Bemis, R. Becking 1964-4-17 WAB,# 256 Humboldt North Coast redwood forest Freshwater Forest, Freshwater 143 Comment
  CHSC23327  Hippuris vulgaris Robert F. Thorne; P. Everett 1965-8-9 35344 Humboldt Along Hwy. 101 about 3 mi. N of Eureka; in shallow water ca. 1 ft. of ditch along roadside. 1 Comment
  UC1191968  Hippuris vulgaris Malcolm A. Nobs and S. Galen Smith 1949-8-3 1191 Humboldt marsh & bog land at southern outskirts Eureka Comment
  HSC10121  Holcus lanatus H. E. Parks, S. T. Parks Aug 1943 24260 Humboldt Spruce Cove, Trinidad. 61 Comment
  SD51261  Holcus lanatus D. F. Howe 1961-8-1 Humboldt 9 miles north of Arcata on #101 Comment
  UCD84972  Holcus lanatus Joseph P. Tracy 1949-7-6 18330 Humboldt Eureka. 30 Comment
  SEINET8718745 Image available Holcus lanatus H. E. Parks, S. T. Parks 1943-1 24260 Humboldt Spruce Cove, Trinidad 61 Comment
  CAS-BOT-BC149903  Holodiscus discolor L. R. Abrams 1918-6-16 7147 Humboldt Willow Creek Comment
  HSC40499  Holodiscus discolor Thomas W. Nelson, James Nelson 1976-7-26 3043 Humboldt E side of middle peak of Mount Lassic group, Signal Peak 1738 Comment
  HSC58168  Holodiscus discolor G. L. Clifton, Griswold 1979-8-2 12239 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC79463  Holodiscus discolor Kenneth Clark 1980-6-14 663 Humboldt Along access trail to Dead Man's Gulch. 107 Comment
  HSC58655  Hordeum brachyantherum G. L. Clifton, Griswold 1979-7-31 11727 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC26777  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 464 Humboldt 915 Comment
  UCD85896  Hordeum marinum subsp. gussoneanum A. H. Murphy 1951-6-1 49 Humboldt O. O. Davis Ranch. South slope of South Fork Mtn., 3 miles E of Low Gap. Comment
  HSC35867  Horkelia californica var. californica Thomas W. Nelson, James Nelson 1975-8-5 2127 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. Comment
  HSC79333  Horkelia tridentata var. flavescens D. H. Norris 1970-5-20 12177 Humboldt Crest of Big Hill Rd. E of Hoopa Comment
  CAS-BOT-BC206123  Hosackia crassifolia Clarence R. Quick 1959-7-24 59 -37 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  CHSC866  Hosackia rosea V. Holt 1941-5-30 Humboldt Comment
  HSC62746  Hydrocotyle ranunculoides J. M. DiTomaso 1979-5-29 1078 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. Comment
  HSC56350  Hydrophyllum occidentale Griswold, Butler 1979-7-10 6300 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC100496  Hydrophyllum occidentale Carl C. Marshall Jun 1885 7 Humboldt Lower Mad River. Comment
  UC502949  Hypericum anagalloides Joseph P. Tracy Jul 16 1930-Jul 19 1930 8978 Humboldt S. Fork Mt., McKay Camp Northern Coast Ranges, S. Fork Mt., McKay Camp 1676 Comment
  UC108651  Hypericum concinnum unknown 1148 Humboldt Eel R. 548 Comment
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Feb 5 2011
  POM146240  Hypericum formosum var. scouleri J. B. Feudge 1923-7-23 153 Humboldt Trinidad Comment
  UC1714398  Hypericum formosum var. scouleri Joseph P. Tracy 1913-7 4393 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  UC511549  Hypericum formosum var. scouleri Ira L. Wiggins 1932-7-18 5886 Humboldt meadow between Arcata and Bayside Comment
  UC1198412  Hypericum perforatum Joseph P. Tracy 1926-7-25 7754 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 152 Comment
  RSA46497  Hypericum perforatum Doris K. Kildale 1925-6-29 932 Humboldt Van Duzen R. near Alton Comment
  UC164814  Hypochaeris glabra J. P. Tracy 1903-8-9 1947 Humboldt Eureka 0 Comment
  HSC39569  Hypochaeris glabra D. E. Anderson, J. P. Smith 1971-6-18 1074 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  RSA246946  Hypochaeris radicata R. F. Thorne, P. C. Everett 1965-8-8 35235 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC40966  Ilex aquifolium Linda M. Barker 1976-6-14 1594 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC206848  Iliamna latibracteata C. B. Wolf 1937-9-11 9322 Humboldt 3 miles north of Orick on Redwood Highway, Davison's Ranch on Prairie Creek 60 Comment
  RSA170251  Iliamna latibracteata Joseph P. Tracy 1949-9-1 18525 Humboldt Willow Creek Canyon, along Trinity Hwy 762 Comment
  HSC102642  Ipomopsis aggregata subsp. aggregata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 964 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  JEPS17225  Iris douglasiana Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  HSC49967  Iris douglasiana M. A. Baker 1979-5-30 768 Humboldt NW tip of Elk Head 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
  UC175302  Iris douglasiana Joseph P. Tracy 1912-4-21 3571 B Humboldt Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC65228  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 441 Humboldt 6.05 mi. N of Hwy. 96 on Ishi Pishi Rd., Orleans Comment
  JEPS88855  Iris tenax subsp. klamathensis Carol A. Wilson 1992-5-15 92 -ph20 Humboldt just s Orleans (along Icesee Road from where it leaves Hwy 96 to top of hill) Comment
  HSC67160  Iris tenuissima J. P. Smith, J. O. Sawyer 1973-5-12 6669 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC90882  Isolepis cernua Gail Newton 1982-6-10 3596 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC5881  Jaumea carnosa David K. Smith 1968-11-9 55 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  CAS-BOT-BC340158  Jaumea carnosa Doris K Niles 1951-8-28 10 Humboldt North side of Niles Island on Niles farm near Loleta, Eel River bottomlands. Comment
  HSC95092  Jaumea carnosa Andrea Pickart 2002-6-27 120 Humboldt Mad River Slough and Dunes, N of parking lot area at N end of access road. 0 Comment
  UC183674  Juncus bolanderi Joseph P. Tracy 1908-7-22 2907 Humboldt between Van Duzen and Mad Rivers (on Dinsmore's Ranch); Northern Coast Region 1066 Comment
  UC184004 Image available Juncus breweri Joseph P. Tracy 1901-8-7 1272 Humboldt ocean beach at Humboldt Bay Northern Coast Region, Humboldt Bay; Humboldt Bay Comment
  UC1152112  Juncus bufonius Joseph P. Tracy 1927-6-19 8197 Humboldt Big Lagoon Comment
  RSA246802  Juncus bufonius Robert F. Thorne, Percy C. Everett 1965-8-7 35229 Humboldt Samoa Peninsula. 3 Comment
  UC1152115  Juncus bufonius Joseph P. Tracy 1930-10-19 9233 Humboldt near Alton; Eel River Comment
  UCD141425  Juncus covillei Linda M. Barker 1976-6-22 1623 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA70280  Juncus covillei F. W. Peirson 1923-7-9 3666 Humboldt Humboldt County State Park on Eel River, northern California. Comment
  HSC46967  Juncus falcatus J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  CHSC110174  Juncus falcatus subsp. sitchensis Peter F. Zika 2007-6-30 23319 Humboldt SW corner of Big Lagoon, (NCo, North Coast). 2 Comment
  HSC56989  Juncus laccatus Walter Overton, Marvin Butler 1979-7-23 9552 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC69632  Juncus lescurii R. Kalal 1980-6-3 27 Humboldt Samoa Dunes, along Samoa Blvd., near Eureka 3 Comment
  UCD150380  Juncus lescurii William Anderson and H. Mc. 1964-8-5 s.n. Humboldt Dry Lagoon. Comment
  RSA246772  Juncus nevadensis var. inventus Robert F. Thorne, Percy C. Everett 1965-8-9 35312 Humboldt Big Lagoon. 3 Comment
  UC1152002  Juncus occidentalis Joseph P. Tracy 1930-7-6 8844 Humboldt Kneeland Prairie 762 Comment
  HSC98789  Juncus patens Cara Witte 2008-7-11 878 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  RSA126572  Juncus patens H. S. Yates 1936-6-23 5858 Humboldt 2 miles southeast of mouth of Mad River. 305 Comment
  BLMAR324  Juncus patens Jennifer Wheeler 2002-8-9 324 Humboldt Lost Coast Headland, Guthrie creek edge along Guthrie creek trail 6 Comment
  UC1152087  Juncus phaeocephalus Joseph P. Tracy 1934-7-13 13391 Humboldt Dow's Prairie; sedge swamp 60 Comment
  RSA742777  Juncus planifolius P. F. Zika 2008-10-19 24229 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  HSC58135  Juniperus communis var. saxatilis Gilbert Muth 1979-8-1 12143 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC235885  Keckiella corymbosa Doris K. Kildale 1926-7-25 2433 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  CAS-BOT-BC235892  Keckiella corymbosa Doris K. Kildale 1929-8-4 8779 Humboldt Mattole River at Union Mattole Comment
  HSC23720  Keckiella corymbosa Tim Baroni 1971-7-5 96 Humboldt W bank of the Mattole River Comment
  JEPS11138  Keckiella corymbosa W. L. Jepson 1932-7-25 16396 Humboldt Old Camp Grant; Eel River 91 Comment
  UC585629  Keckiella corymbosa Joseph P. Tracy 1937-7-11 15422 Humboldt vicinity Garberville 121 Comment
  HSC36460  Keckiella lemmonii Thomas W. Nelson, B. Reinhardt 1975-7-30 2108 Humboldt Beside Rd. out Whiting Ridge Comment
  UC1222453  Kickxia elatine Joseph P. Tracy 1934-8-14 13572 Humboldt Alton North Coast Ranges (along Van Duzen River) 30 Comment
  SEINET200338 Image available Koeleria macrantha J. P. Tracy 1917-6-17 4819 Humboldt Bluff at Ocean Niero Cemetery 61 Comment
  UC1199393  Kyhosia bolanderi Joseph P. Tracy 1932-7-16 10613 Humboldt Corral Prairie; Trinity summit 1584 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
  HSC78960  Lamium purpureum L. P. Janeway, K. Berg 1984-4-11 725 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  HSC77914  Landoltia punctata Daniel V. Richards 1981-8-20 103 Humboldt N Clam Beach Pond, E side of Hwy. 101 near Cranell exit. Comment
  SDSU2761  Lapsana communis D. F. Howe 1959-8-4 2802 Humboldt 86 mi. west of Weaverville on #299. 305 Comment
  UC205216  Lasthenia gracilis Joseph P. Tracy 1920-5-18 5320 Humboldt on Bull Creek, Look Prairie Northern Coast Ranges, Look Prairie, Bull Creek 152 Comment
  UC1199076  Lathyrus glandulosus Joseph P. Tracy 1930-8-24 9170 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC14734  Lathyrus japonicus S. J. Hawks 1965-5-18 74 Humboldt Clam Beach. Comment
  UC1199079  Lathyrus japonicus Joseph P. Tracy 1915-6-6 4647 Humboldt mouth of Elk River Northern Coast Region, Eureka 0 Comment
  UCD106331  Lathyrus jepsonii var. californicus W. A. Williams 1951-6-14 s.n. Humboldt Humboldt County. Comment
  POM199443  Lathyrus littoralis H. E. Parks 1930-5-24 0798 Humboldt Little River Lagoon. Comment
  POM72742  Lathyrus littoralis P. A. Munz 1925-6-21 9892 Humboldt Clam Beach, 14 miles N of Eureka. Comment
  BLMAR60  Lathyrus littoralis Jennifer Anthony-Wheeler 1994-3-31 60 Humboldt King range, growing on matole beach1/4miS of campground.dense mat of like individuals 12 Comment
  RSA246790  Lathyrus palustris R. F. Thorne 1965-8-7 351180 Humboldt Big Lagoon, south end. 2 Comment
  UCD106342  Lathyrus polyphyllus A. Murphy 1951-5-15 s.n. Humboldt Half mile S. of South Fork on McCann Road. 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
  UC1199084  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1924-8-10 6814 Humboldt Blue Slide, on Van Duzen River Northern Coast Ranges, Van Duzen River 91 Comment
  CAS-BOT-BC325997  Layia carnosa Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  UC1565646  Layia carnosa Ken S. Berg 1987-5-30 Humboldt s of mouth of Mattole River; Mattole River Dunes Comment
  UC34740  Layia carnosa W. C. Blasdale 1896-6-2 Humboldt Comment
  POM318849  Ledum glandulosum subsp. columbianum Patricia Wilder 1968-8-21 4385 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC10273  Leersia oryzoides D. E. Anderson 1963-9-29 2847 Humboldt Fish Lake. Comment
  UCSB30609  Leontodon saxatilis Edwards, David 1974-8-12 Humboldt North side of 7th St., just W. of its overpass of U.S. 101, Arcata 18 Comment
  HSC89416  Leontodon saxatilis subsp. saxatilis P. A. Daly 1986-1-20 45 Humboldt Trinidad Head, along trail 61 Comment
  JEPS36514  Leontodon saxatilis subsp. saxatilis W. L. Jepson 1927-7-3 12365 Humboldt South Fork Eel River, Miranda Station 228 Comment
  CAS-BOT-BC89165  Lepidium draba Joseph P. Tracy 1933-5-19 12201 Humboldt Eel River. Alton to Fortuna. 15 Comment
  CAS-BOT-BC12875  Lepidium strictum Kenneth Clark 1981-5-2 1362 Humboldt Shelter Cove. Point Delgada. In parking lot of Mario's Marina. 15 Comment
  UCD115838  Lepidium strictum Joseph P. Tracy 1946-5-30 17540 Humboldt Vicinity of Carlotta. 30 Comment
  CAS-BOT-BC341827  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt Northern Coast Ranges. Dinsmore's Ranch: On Van Duzen River opposite Buck Mountain 670 Comment
  JEPS20619  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1115822  Lessingia nemaclada Joseph P. Tracy 1939-9-4 16476 Humboldt opposite Buck Mountain (Dinsmores); Valley of Van Duzen River 762 Comment
  CAS-BOT-BC334619  Leucanthemum vulgare L. R. Abrams; R. Bacigalupi 1922-6-25 8262 Humboldt Between Trinidad and Big Lagoon Comment
  SEINET200646 Image available Leymus X vancouverensis J. P. Tracy 1930-1 8894 Humboldt Cape Mendocino; near open shore, south of point of the Cape. Comment
  CDA32455  Leymus X vancouverensis B. F. Kemp 1958-6-13 Humboldt Along Creek Bottom, Eureka (Nielson & Son) 0 Comment
  RSA129558  Leymus mollis subsp. mollis H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  SEINET200639 Image available Leymus mollis subsp. mollis Joseph P. Tracy 1923-5-19 6212 Humboldt Trinidad. Comment
  SEINET200642 Image available Leymus triticoides J. P. Tracy 1929-6-3 8601 Humboldt Trinity River Valley at Willow Creek 152 Comment
  POM313157  Leymus vancouverensis Malcolm A. Nobs, S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, ca. 2 miles north of Eureka Comment
  UC1197169  Ligusticum grayi Joseph P. Tracy 1932-7-12 10444 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  UC672870  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  UC1101451  Lilaeopsis occidentalis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1166 Humboldt 1 mi. s. Fields Landing (Eel R. Valley); Eel R. Valley Comment
  HSC21521  Lilaeopsis occidentalis J. W. Johnson 1962-6-5 Humboldt Lanphere Farm, Samoa Peninsula, Hollow 10 Comment
  SBBG1025  Lilium columbianum H. and M. Dearing 1939-6-23 3698 Humboldt 5 mi N of Trinidad Comment
  UC1198239  Lilium columbianum Joseph P. Tracy 1926-7-25 7748 Humboldt Big Lagoon; Northern Coast Region 60 Comment
  UC55890  Lilium columbianum J. P. Tracy 1902-7-4 1755 Humboldt immediate vicinity Eureka (near Ryan's Slough Hill) 0 Comment
  HSC89438  Lilium columbianum P. A. Daly 1984-6-16 28 Humboldt Open bluffs of Trinidad Head trail 61 Comment
  UCSB24780  Lilium columbianum Keefe, Joseph 1967-7-8 Humboldt 20 miles north of Eureka 1 Comment
  HSC57912  Lilium kelleyanum Gilbert Muth 1979-7-31 11521 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  LA22064  Lilium occidentale Carl Epling; William Robison 1935-7-22 sn Humboldt near Patrick's Point Comment
  UC1225855  Lilium pardalinum Joseph P. Tracy 1948-9-5 18196 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC1198236  Lilium pardalinum Joseph P. Tracy 1914-7-4 4528 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC58051  Lilium pardalinum subsp. pardalinum G. L. Clifton, Griswold 1979-8-1 11913 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC98051  Lilium pardalinum subsp. pardalinum Cara Witte 2007-7-11 488 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  HSC99865  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau 1979-8-10 713 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  CAS-BOT-BC132963  Lilium rubescens Doris K. Kildale 1926-5-16 2001 Humboldt Miranda on South Fork of Eel River Comment
  HSC15582  Lilium rubescens H. E. Parks Jul 1933 1414 Humboldt S Fork Mtn. Comment
  UC1197416  Limnanthes douglasii Joseph P. Tracy 1940-5-5 16542 Humboldt Garberville 152 Comment
  UC673262 Image available Limnanthes douglasii Lincoln Constance and Reed C. Rollins 1942-5-21 3000 Humboldt two mi n Harris; Klamath-Siskiyou Region; Siskiyou Region, Humboldt Co. 762 Comment
  HSC17100  Limnanthes douglasii subsp. nivea William J. Ferlatte, B. D. Rogers 1966-6-15 2106 Humboldt Larabee Valley 762 Comment
  HSC83038  Limonium californicum A. L. Eicher 1985-6-19 Humboldt Humboldt Bay, 0.3 mi. S of the junction of Samoa Blvd. and Vance Ave. 1 Comment
  UCD98509  Limonium californicum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1203 Humboldt Salt marshes bordering Humboldt Bay, about 2 miles north of Eureka. Comment
  UC1198577  Linanthus acicularis Joseph P. Tracy 1921-4-24 5474 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC908625  Linanthus acicularis Joseph P. Tracy 1927-5-15 8033 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1198571  Linanthus bicolor Joseph P. Tracy 1906-6-10 2483 Humboldt Kneeland Prairie, at Fitzgerald's Northern Coast Ranges 762 Comment
  RSA183497  Linaria canadensis J. R. Woodside 1963-5-11 8 Humboldt 1.25 miles north of Fairhaven. Comment
  HSC20667  Linaria vulgaris H. E. Parks, S. T. Parks Aug 1943 22239 Humboldt Along Hwy., Stone Lagoon 15 Comment
  UC14967  Listera caurina Joseph Burtt Davy 1899-6-19 5648 Humboldt near top of Ridge Hoopa Mt. Comment
  HSC74730  Listera convallarioides Gail Newton 1981-7-24 2321 Humboldt Near Bug Creek Butte 1417 Comment
  HSC27779  Listera convallarioides J. D. Ackerman 1973-8-19 113 Humboldt East edge of Mill Creek Lake, E of Hoopa 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
  UC1196368  Lithocarpus densiflorus Joseph P. Tracy 1923-5-13 6201 Humboldt Strongs Station Northern Coast Ranges (forest on Van Duzen River) 60 Comment
  UC54688  Lithocarpus densiflorus P. E. Goddard 1901-7-6 46 Humboldt Hupa Comment
  CAS-BOT-BC36147  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-7-25 2438 Humboldt Briceland Bridge. 1/2 mile west of Gaberville 114 Comment
  RSA55100  Lithocarpus densiflorus var. densiflorus O. J. Murie 1934-11-30 2532 Humboldt South of Gerberville. Comment
  HSC20217  Lithophragma affine J. P. Tracy 1950-6-25 1888712 Humboldt Burr Valley 1067 Comment
  HSC102135  Lithophragma campanulatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1039 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC31443  Lithophragma campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5561 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC78980  Lobularia maritima L. P. Janeway 1984-12-5 1195 Humboldt N Spit of Humboldt Bay, W side Samoa Rd. near the boat ramp 5 Comment
  CAS-BOT-BC283408  Lolium multiflorum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC42239  Lolium perenne W. F. Nickel 1965-5-13 Humboldt On W side of College Elementary School on Humboldt State College Campus. Comment
  RSA293179  Lolium perenne James Payne Smith Jr. 1977-7-3 9246 Humboldt Six Rivers National Forest, Along road to Onion Lake, just above Blue Lake 976 Comment
  RSA296857  Lolium perenne subsp. multiflorum Lincoln Constance 1927-5-27 699 Humboldt Gravel bar of South Fork of Eel River, S. end of Dryerville Bridge 46 Comment
  UC1197166  Lomatium californicum Joseph P. Tracy 1912-7-31 3929 Humboldt near summit Buck Mt.; Northern Coast Ranges, Buck Mt. 1676 Comment
  HSC39598  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, James Nelson 1976-7-1 2921 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC1222609  Lomatium dissectum Joseph P. Tracy 1950-6-15 18805 Humboldt 7 mi N of Harris (Jenk's Ranch) Comment
  JEPS16236  Lomatium dissectum var. dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt lower foothhills of Buck Mt. (on its n.w. slope); Northern Coast Ranges, Buck Mt. 762 Comment
  RSA28899  Lomatium dissectum var. dissectum Lincoln Constance, A. A. Beetle 1940-5-17 2617 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  HSC55748  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-26 10275 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC56077  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-31 11756 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC70564  Lomatium macrocarpum M. A. Baker 1980-7-23 3141 Humboldt Near Orleans Mtn. 1859 Comment
  HSC96294  Lomatium macrocarpum April A. Allard, Gregory D. O'Connell 2005-6-3 1 Humboldt White Oak Opening, 19.3 mi. S of Hwy. 299 on NF1 1246 Comment
  HSC98775  Lomatium macrocarpum Cara Witte 2008-6-9 695 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  UC1222606  Lomatium nudicaule Joseph P. Tracy 1951-6-26 5056 Humboldt Board Camp Mountain, N side; at extreme head of Redwood Creek 1541 Comment
  HSC97458  Lomatium nudicaule Cara Witte 2007-5-29 125 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC44439  Lomatium tracyi Barbara Kelly 1978-5-1 589 Humboldt 1/4 mi. from Horse Mtn., road 1/2 mi. below turnoff to summit, near end of unused gravel road Comment
  HSC96231  Lomatium tracyi Sara March, Gillian Levy 2005-6-24 13 Humboldt Radio Tower on Horse Mtn. 1509 Comment
  UC647476 Image available Lomatium tracyi Joseph P. Tracy 1933-7-25 12895 Humboldt Grouse Mountain. 1524 Comment
  HSC35032  Lomatium utriculatum Thomas W. Nelson, James Nelson 1975-5-24 1858 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC21549  Lomatium utriculatum F. Morrell 1949-5-14 16 Humboldt Berry Summit Comment
  JEPS14215  Lomatium utriculatum Joseph P. Tracy 1930-6-29 8814 Humboldt lower foothills of n.w. slope Buck Mt. 762 Comment
  UCD158844  Lomatium utriculatum Lincoln Constance 1934-5-29 718 Humboldt Humboldt County, Bull Creek region, South Fork Eel River, Upper Look Prairie. 365 Comment
  HSC99456  Lonicera conjugialis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 108 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CAS-BOT-BC241408  Lonicera etrusca David D. Keck 1948-7-1 5975 Humboldt South side of Big Lagoon Comment
  UC1239559  Lonicera hispidula var. vacillans Joseph P. Tracy 1938-7-5 16000 Humboldt Carlotta Northern Coast Ranges 60 Comment
  CAS-BOT-BC241490  Lonicera involucrata var. ledebourii Alice Eastwood 1923-8-14 12306 Humboldt Samoa Comment
  CAS-BOT-BC241494  Lonicera involucrata var. ledebourii Carl B. Wolf 1927-8-22 770 Humboldt Big Lagoon Comment
  CAS-BOT-BC241496  Lonicera involucrata var. ledebourii Huron H. Smith 1911-6-4 3801 Humboldt Trinidad Comment
  POM46694  Lonicera involucrata var. ledebourii L. R. Abrams 1916-7-18 6129 Humboldt Arcata to Trinidad. Comment
  UC1239556  Lonicera involucrata var. ledebourii Joseph P. Tracy 1923-6-17 6269 Humboldt Big Lagoon 3 Comment
  UC495716  Lotus aboriginus Joseph P. Tracy 1930-9-14 9185 Humboldt Kneeland Northern Coast Ranges 609 Comment
  UCSB30598  Lotus corniculatus Edwards, David 1974-7-13 Humboldt North side of 7th St. just W of its overpass of U.S. 101, Arcata 18 Comment
  POM16960  Lotus crassifolius Joseph P. Tracy 1905-9-3 2389 Humboldt Immediate vicinity of Eureka. Comment
  RSA168891  Lotus crassifolius Joseph P. Tracy 1936-6-9 14914 Humboldt Near panther Gap, on the Bull Creek-Mattole Road. Comment
  RSA20779  Lotus crassifolius Carl B. Wolf 1937-8-13 9243 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1223432  Lotus denticulatus Joseph P. Tracy 1950-7-6 18998 Humboldt 2 mi s Burr Valley (on the Albee Road) 1158 Comment
  JEPS55515  Lotus humistratus Mrs. M. H. Manning 1901-5 69 Humboldt near Hupa Comment
  UC1197308  Lotus humistratus Joseph P. Tracy 1931-5-3 9354 Humboldt near Blue Lake; Northern Coast Region, Mad River 15 Comment
  JEPS55512  Lotus humistratus Lincoln Constance 1934-5-23 623 Humboldt upper end of Look Prairie South Fork Eel River, Bull Creek Region, Look Prairie 365 Comment
  HSC97498  Lotus micranthus Cara Witte 2007-5-21 60 Humboldt White Oak Opening. 1257 Comment
  UC1197299  Lotus micranthus Joseph P. Tracy 1919-5-31 5146 Humboldt near Willow Creek (hillslopes at w side of Trinity River in valley of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  RSA273328  Lotus oblongifolius Thomas W. Nelson, James Nelson, A. Nelson 1976-7-28 3077 Humboldt Road to Pine Mountain. 1524 Comment
  POM276673  Lotus scoparius var. scoparius Lyman Benson 1928-7-1 468 Humboldt Weott Ranger Station. 61 Comment
  HSC28181  Lotus uliginosus Richard Curtis 1973-9-27 16 Humboldt Arcata, on the N side of 7th St. just before it crosses the freeway. Comment
  HSC56969  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-23 9498 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC71612  Lotus unifoliolatus var. unifoliolatus J. P. Smith 1973-5-26 6835 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC98270  Lotus unifoliolatus var. unifoliolatus Lincoln Constance 1934-5-26 669 Humboldt South Fork Eel River, S end of Dyerville Bridge. 46 Comment
  UC1196932  Ludwigia palustris Joseph P. Tracy 1948-7-26 18076 Humboldt mouth of Willow Creek Lack Pond; Northern Coast Ranges, Trinity R. Valley, Lack Pond 152 Comment
  HSC58199  Luina hypoleuca Walter Overton 1979-8-2 12302 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  SEINET10936548  Lupinus adsurgens var. adsurgens Chestnut 1888-7-21 CHESTNUT s.n. Humboldt Type photo. W side south fork mountain. Comment
  UC503016  Lupinus albifrons Joseph P. Tracy 1929-4-28 8552 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 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
  HSC97489  Lupinus albifrons var. collinus Cara Witte 2007-5-29 136 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  HSC32158  Lupinus andersonii J. O. Sawyer 1970-6-24 2233 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 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
  SEINET8042134  Lupinus formosus J. P. Tracy 1904-7-4 2113 Humboldt Rgion about Humboldt Bay, bluff at Bucksport 0 Comment
  HSC61195  Lupinus latifolius Jimerson, J. Pageau 1979-5-24 475 Humboldt Near Orleans 226 Comment
  UC1223265  Lupinus latifolius var. latifolius Joseph P. Tracy 1939-7-9 16339 Humboldt Snow Camp Comment
  HSC14918  Lupinus lepidus Allan R. Marshall 1962-5-13 15 Humboldt W side of Redwood Creek Bridge, along Hwy. 299 259 Comment
  BLMAR212  Lupinus microcarpus var. densiflorus Jennifer Anthony-Wheeler 1996-7-9 212 Humboldt Pilot ridge., open or distrubed areas 1280 Comment
  UC302327  Lupinus nanus Joseph P. Tracy 1925-5-31 7053 Humboldt Bridgeville 228 Comment
  JEPS65420  Lupinus polyphyllus W. L. Jepson 1902-6-24 1927 Humboldt Eureka to Arcata; Eureka to Arcata Comment
  HSC58042  Lupinus tracyi Gilbert Muth 1979-8-1 11890 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC58361  Lupinus tracyi G. L. Clifton, Griswold 1979-7-26 10194 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC38371  Lupinus variicolor Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  SEINET12154787  Lupinus variicolor J. P. Tracy 1938-1 15940 Humboldt Brainards Point, betw Eureka and Arcata Comment
  UC1103681  Luzula comosa Joseph P. Tracy 1906-5-20 2460 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  HSC45018  Luzula comosa R. Sutherland 1978-4-23 13 .23478 Humboldt Telegraph Ridge at head of Green Ridge 707 Comment
  CAS-BOT-BC436746  Luzula comosa var. comosa Harley P. Chandler 1901-5-1 1159 Humboldt North Coast Ranges: Humboldt Bay 30 Comment
  UC1056033  Luzula parviflora H. E. and S. T. Parks June 1952 22446 Humboldt Bishop Pine Lodge Trinidad, Bishop Pine Lodge Comment
  UC2982  Luzula subsessilis Harley P. Chandler May, 1901 1104 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  SEINET2076892  Lycopodium clavatum L. L. Kiefer, D. Branscomb 1964-5-20 1435 Humboldt Near trinidad, 1 mi E of Moonstone Beach on Knutz property 152 Comment
  HSC91595  Lysichiton americanus E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near park entrance Comment
  UC1198469  Lythrum hyssopifolia Joseph P. Tracy 1942-6-15 17117 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  HSC15935  Lythrum hyssopifolia W. C. Vinyard, D. E. Anderson 1961-10-12 Humboldt Humboldt State College Campus. Comment
  CAS-BOT-BC344357  Madia exigua L. R. Abrams 1916-7-11 5995 Humboldt Between Blocksberg & Bridgeville Comment
  HSC100441  Madia filipes Carl C. Marshall Jun 1887 457 Humboldt Near Harris. Comment
  CAS-BOT-BC343018  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  UC176727  Madia gracilis Joseph P. Tracy 1909-8-1 3069 Humboldt Kneeland Prairie 762 Comment
  UC175195  Madia gracilis Joseph P. Tracy 1913-6-22 4258 Humboldt Dinsmore's Ranch; Valley of Van Duzen River, Buck Mountain 762 Comment
  CAS-BOT-BC343590  Madia sativa J. Clausen 1932-9-18 678 Humboldt 11 miles south of Ferndale on the road to Capetown Comment
  HSC40379  Madia sativa Linda M. Barker 1976-6-14 1592 Humboldt 3 mi. W of Arcata Comment
  RSA0011631  Madia sativa R. F. Thorne, Percy C. Everett 1965-8-7 35216 -b Humboldt Samoa Peninsula. 0 Comment
  CAS-BOT-BC343594  Madia sativa Doris K. Kildale 1925-7-28 1093 Humboldt Riverside on the Van Duzen River near Strong's Station Comment
  JEPS7506  Madia sativa Joseph P. Tracy 1927-6-18 8176 Humboldt sw slope slopes fronting the ocean 3 mi s point of cape; Northern Coast Ranges, Cape Mendocino 3 Comment
  UCSC000764  Madia sativa H. L. Person 1932-7-21 s.n. Humboldt Highway near Blue Lake Blue Lake - Eureka Comment
  CAS-BOT-BC508519  Maianthemum dilatatum Alice Eastwood 1907-4-21 35 Humboldt Port Trinidad Comment
  JEPS79931  Maianthemum dilatatum Joseph P. Tracy 1926-4-25 7414 Humboldt Grizzly Creek on Van Duzen R. Northern Coast Ranges, Van Duzen R., Grizzly Creek 91 Comment
  RSA376906  Maianthemum dilatatum Bonnie C. Templeton 1964-6-13 10182 Humboldt Along old 101 Highway to Trinidad Comment
  RSA376909  Maianthemum dilatatum Charlotte M. Hoak 1931-7-15 s.n. Humboldt Big Lagoon Comment
  HSC100563  Maianthemum racemosum subsp. amplexicaule Carl C. Marshall Apr 1886 128 Humboldt Damp woods. Comment
  RSA407376  Maianthemum stellatum Lyman Benson 1929-7-19 1859 Humboldt Dyerville to Matole River. Comment
  CAS-BOT-BC512771  Maianthemum stellatum V. Rattan 1883-6-1 s.n. Humboldt Near summit between Pilot Creek and South Fork Trinity River Comment
  RSA95019  Malacothrix floccifera F. W. Peirson 1923-7-9 3933 Humboldt Humboldt County State Park Comment
  UC1197978  Malva neglecta Joseph P. Tracy 1912-7-26 3876 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC26848  Malva nicaeensis Thomas W. Nelson 1971-1-8 324 Humboldt N of the county fairgrounds at Ferndale Comment
  HSC59579  Marah oregana Rick Lundquist 1979-5-23 103 Humboldt 3.4 mi. up Fickle Hill Rd. from 11th St. 274 Comment
  POM318838  Marah oregana Patricia Wilder 1968-8-22 4419 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
  SJSU11758  Marah oregana R. D. Spadoni 1965-3-26 Humboldt Trinidad Comment
  UC249510  Marah oregana Joseph P. Tracy 1922-4-30 6035 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC45592  Marah oregana Diane L. Reed 1978-5-27 127 Humboldt Horse Mtn., on Titlow Hill Rd. 1.5 mi. from junction with Hwy. 299 Comment
  POM128304  Marah oregana H. P. Chandler 1901-6-10 1407 Humboldt Saint's Rest; Klamath River. 152 Comment
  RSA144006  Marah oregana P. H. Raven, Richard Snow 1958-7-21 13650 Humboldt 2.9 miles south of Ferndale on road to Cape Mendocino Comment
  HSC47496  Medicago polymorpha Sheila Logan 1978-4-9 20 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  UC526915  Melica bulbosa Joseph P. Tracy 1932-7-12 10445 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC269350  Melica californica Joseph P. Tracy 1921-5-30 5491 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  JEPS75422  Melica geyeri W. L. Jepson 1932-7-30 16458 Humboldt Bull Creek 121 Comment
  UCD87570  Melica harfordii H. S. Yates 1936-6-17 5721 Humboldt Near Burr Valley. 914 Comment
  CAS-BOT-BC262469  Melica subulata Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC75451  Melica subulata J. O. Sawyer 1980-7-18 3588 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC97956  Melica subulata Cara Witte, Michael Scott 2007-6-22 345 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1494 Comment
  HSC71440  Melilotus albus J. P. Smith 1973-5-26 6793 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC195432  Mentha aquatica Joseph P. Tracy 1915-9-5 4665 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC577380  Mentha aquatica Joseph P. Tracy 1927-10-8 8388 Humboldt Arcata Bottom 9 Comment
  UCD125071  Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt Field's Landing. 2 miles south of town. 6 Comment
  UC175779  Mentha aquatica Joseph P. Tracy 1912-10-20 3989 Humboldt Loleta Pond; Northern Coast Ranges, Loleta pond 30 Comment
  UC577360  Mentha pulegium Joseph P. Tracy 1923-6-20 6336 Humboldt Briceland 304 Comment
  HSC49016  Mentha pulegium Patricia Shesgreen 1978-8-2 127 Humboldt Along rd. at 11th and B St. Arcata Comment
  POM283192  Mentha pulegium Lyman Benson 1929-7-14 1558 Humboldt S. Fork Eel River, Weott Ranger Station Comment
  JEPS42849  Mentzelia laevicaulis var. laevicaulis W. L. Jepson 1932-7-25 16397 Humboldt Eel River, Old Camp Grant Comment
  HSC100505  Micromeria douglasii Carl C. Marshall Jun 1887 459 Humboldt Everywhere. Comment
  UC1239517  Microseris bigelovii Joseph P. Tracy 1922-5-28 6057 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  UC1223203  Microseris bigelovii Joseph P. Tracy 1938-5-31 18014 Humboldt near Alder Point (along road to Harris, 1 mi sw) Comment
  UC1199445  Microseris laciniata subsp. laciniata Harold E. Parks and Joseph P. Tracy 1942-5-16 11569 Humboldt vicinity Garberville 152 Comment
  UC1223195  Microseris laciniata subsp. laciniata Joseph P. Tracy 1942-6-15 17152 Humboldt 1/2 mi ne Garberville (on the road to Harris) 304 Comment
  HSC73770  Microseris nutans M. A. Baker 1980-6-7 1777 Humboldt Near Brush Mtn. 1128 Comment
  HSC74187  Microseris nutans Gail Newton 1980-6-28 722 Humboldt Near Mad River Butte. 1536 Comment
  UC582734  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC70961  Microsteris gracilis Thomas W. Nelson 1977-6-15 3455 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  HSC99080  Microsteris gracilis C. Witte 2007-5-22 83 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  HSC20687  Mimulus aurantiacus var. aurantiacus R. Spellenberg 1965-6-14 1136 Humboldt Hwy. 299, 1 mi. E of Blue Lake Comment
  HSC38622  Mimulus aurantiacus var. aurantiacus D. E. Anderson, J. P. Smith 1971-6-21 1111 Humboldt 5.2 mi. E of the bridge over Eel River at Alderpoint, near Humboldt-Trinity county line Comment
  HSC72410  Mimulus aurantiacus var. aurantiacus J. P. Smith 1973-5-26 6829 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC20821  Mimulus breweri J. P. Tracy 1932-7-10 10375 Humboldt Trinity Summit 1585 Comment
  HSC56036  Mimulus breweri Gilbert Muth 1979-7-31 11601 Humboldt Near Trinity Summit, close to the town of Hoopa 1720 Comment
  HSC37368  Mimulus dentatus Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 502 Humboldt Along Lost Man Creek. 38 Comment
  UC147879  Mimulus dentatus J. P. Tracy 1900-5-30 833 Humboldt immediate vicinity Eureka 0 Comment
  UC198662  Mimulus douglasii Joseph P. Tracy 1915-5-20 4639 Humboldt Eureka Northern Coast Ranges Comment
  UC444806  Mimulus kelloggii Mrs. M. H. Manning 1901-5-26 Humboldt near Hupa; Hupa Valley Comment
  HSC100673  Mimulus moschatus Carl C. Marshall Sep 1886 248 Humboldt Ravines, etc. Comment
  UC582596  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15570 Humboldt halfway between Cold Springs and Blake Lookout; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC20790  Mimulus pilosus David Adams 1960-8-20 Humboldt Eel River; Whitlow (Sequoia) 56 Comment
  UC582441  Mimulus pilosus Joseph P. Tracy 1923-9-16 6552 Humboldt at mouth of South Fork Northern Coast Ranges, Trinity River Valley 152 Comment
  UC582492  Mimulus pulsiferae Joseph P. Tracy 1933-7-25 12838 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
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Sep 10 2013
  UC1103538  Minuartia californica Joseph P. Tracy 1922-5-29 6072 Humboldt South Yager Creek Northern Coast Ranges (head) 762 Comment
  UCD98275  Minuartia douglasii Joseph P. Tracy 1942-6-23 17225 Humboldt Trinity Summit; one mile west of Mud Springs. Comment
  HSC4063  Minuartia pusilla D. E. Anderson 1963-5-19 2469 Humboldt Kneeland Area Comment
  UC1198867  Mitella caulescens Joseph P. Tracy 1937-7-2 15400 Humboldt Little Hors-Linto Creek Trinity Summit (head) 1371 Comment
  HSC71160  Mitella diversifolia Thomas W. Nelson 1977-6-15 3422 Humboldt Along USFS rd connecting FS 6N01 to 5N10, just N of Clear Lake 1372 Comment
  HSC99403  Mitella trifida var. trifida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 52 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCLA62435  Monardella villosa subsp. globosa C. Epling, Wm. Robison 1935-7-24 Humboldt Dyerville Comment
  UCD125294  Monardella villosa var. tomentosa D. Wiesendanger; F. Randall 1926-7-1 1547 Humboldt Richardson Grove, Redwood Highway. Comment
  HSC97469  Montia C. Witte 2007-5-21 53 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  HSC102631  Montia chamissoi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1616 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC183608  Montia chamissoi Joseph P. Tracy 1913-6-17 4169 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  JEPS43276  Montia howellii J. P. Tracy 1909-5-2 2956 Humboldt Eureka Comment
  JEPS43174  Montia parvifolia Milo S. Baker 1923-7-31 143 Humboldt Butte's Run; North Coast, Butte's Run Comment
  HSC16105  Morella californica D. E. Anderson 1961-9-13 1805 Humboldt Big Lagoon County Park Comment
  UC503092  Morella californica Joseph P. Tracy 1931-5-1 9332 Humboldt Northern Coast Ranges, Downs Prairie Comment
  HSC10395  Muhlenbergia filiformis H. E. Parks, J. P. Tracy 1934-6-27 11083 Humboldt Grouse Mtn. Comment
  CAS-BOT-BC101669  Myrica californica Doris K. Kildale 1926-11-28 2866 Humboldt Patrick's Point Comment
  UC1197940  Myrica californica Joseph P. Tracy 1931-3-26 9291 Humboldt along Van Duzen R. Alton; North Coast Ranges, , Van Duzen R. 30 Comment
  HSC77873  Myriophyllum sibiricum Ted Jacobson 1975-11-3 Humboldt Stone Lagoon 0 Comment
  CAS-BOT-BC7179  Myrrhis bolanderi Henry Nicholas Bolander 6525 Humboldt Lambert's Lake Comment
  UC526764  Nassella pulchra Joseph P. Tracy 1926-5-2 7436 Humboldt grassy hillside near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC60344  Nasturtium officinale Kenneth Clark 1980-5-10 650 Humboldt Shelter Cove. Point Delgada. On Western beach coastal bluffs. 6 Comment
  UC1198525  Navarretia atractyloides Joseph P. Tracy 1925-7-26 7207 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC102509  Navarretia capillaris M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1494 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC55328  Navarretia divaricata Griswold, Butler 1979-7-12 7167 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1198600  Navarretia divaricata Joseph P. Tracy 1933-7-25 12858 Humboldt Grouse Mountain Northern Coast Ranges 1524 Comment
  UC907815  Navarretia leucocephala subsp. minima Joseph P. Tracy 1928-6-24 8476 Humboldt between Middle and North Yager Creeks (East Ranch) 762 Comment
  HSC35870  Navarretia mellita Thomas W. Nelson 1975-8-5 Humboldt Parking area of 7th Day Advent Church in Eureka Comment
  SEINET12279161  Navarretia pubescens J. P. Tracy 1950-1 18861 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 213 Comment
  HSC17146  Navarretia squarrosa S. V. Thompson 1967-7-24 22 Humboldt Near Boulder Creek Comment
  JEPS70491  Navarretia tagetina Joseph P. Tracy 1916-6-19 4709 Humboldt Forks of Dobbyn Creek Northern Coast Ranges 182 Comment
  HSC13586  Nemophila menziesii Doris K. Kildale 1926-4-11 1762 Humboldt Buck Mtn. Comment
  BLMAR494  Nemophila parviflora Jennifer Wheeler 2009-4-30 494 Humboldt King range, Hidden Valley trail; trail start Comment
  BLMAR172  Nemophila pedunculata Donald Hazlett 1994-6-7 172 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC146184  Nemophila pedunculata Joseph P. Tracy 1906-5-6 2434 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC198617  Nicotiana attenuata Joseph P. Tracy 1916-9-5 4763 Humboldt 4 mi above South Fork of Eel River mouth; Northern Coast Ranges 60 Comment
  JEPS12381  Nicotiana quadrivalvis Joseph P. Tracy 1930-10-19 9223 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  HSC6970  Noccaea fendleri subsp. glauca Lincoln Constance, R. C. Rollins 1942-5-12 2887 Humboldt Klamath River, 7 mi. NE of Weitchpec 122 Comment
  HSC8072  Notholithocarpus densiflorus H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  OBI36374  Notholithocarpus densiflorus var. densiflorus David J. Keil 1983-7-1 17266 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  HSC20656  Nuttallanthus texanus L. H. Myers 1963-4-5 19 Humboldt Dunes W of Lanpheres Rd., Mad River slough area Comment
  HSC82314  Oemleria cerasiformis Thomas W. Nelson, Linda M. Barker 1977-6-3 3386 Humboldt Floodplain of Mad River at S end of Mad River Bridge. 53 Comment
Read comments
May 7 2013
  HSC97444  Oenanthe sarmentosa Ivy Watson 2008-9-28 27 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  UC314582  Oenanthe sarmentosa Joseph P. Tracy 1924-9-28 6910 Humboldt Centerville Northern Coast Ranges, Centerville 6 Comment
  HSC23225  Oenanthe sarmentosa Thomas O. Erickson 1971-10-28 1 Humboldt Luffenholtz Beach off Hwy. 101 N of Moonstone Comment
  HSC36315  Oenanthe sarmentosa Edward J. Grabek 1973-5-23 73523 .5 Humboldt Margin of N Clam Beach pond Comment
  UCD127762  Oenanthe sarmentosa C. S. Myszka 1921-4-1 s.n. Humboldt County unknown: location unknown. Comment
  HSC100581  Oenothera cheiranthifolia Carl C. Marshall May 1885 41 Humboldt Peninsula. Comment
  RSA0070495  Orobanche californica subsp. californica Edward Lee 1934-8-17 1152 Humboldt East shore of Big Lagoon, 35 miles north of Eureka. 3 Comment
  UC1197457  Orobanche fasciculata Joseph P. Tracy 1921-5-30 5492 Humboldt Northern Coast Ranges. Kneeland Prairie. Comment
  UC154274  Orobanche fasciculata Mrs. M. H. Manning 1901-6-7 97 Humboldt Near Hupa. Comment
  UC1197451  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1922-4-30 6001 Humboldt Trinity River Valley, near Willow Creek. Comment
  HSC91935  Osmorhiza berteroi E. Mackey 1987-5-7 Humboldt Patrick's Point State Park, Palmer's Point Comment
  HSC21584  Osmorhiza berteroi D. E. Anderson 1961-8-11 1724 Humboldt E of Humboldt State College campus. 30 Comment
  HSC65513  Osmorhiza occidentalis M. A. Baker 1980-6-8 1907 Humboldt Near Buck Flat. 1554 Comment
  HSC16721  Oxalis articulata subsp. rubra N. R. Waite 1965-5-19 36 Humboldt W edge of Humboldt State University campus. Comment
  POM353447  Oxalis oregana Carolyn Sanford 1977-4-23 333 Humboldt 2.5 miles south of Shelter Cove Road, south fork of Bear Creek at Wailaki Campground 561 Comment
  RSA24188  Oxalis oregana Carl B. Wolf 1941-3-2 9986 Humboldt N Coast Range. Bull Creek-Petrolia Road. 12 miles W of Redwood Highway. 457 Comment
  UC1197419  Oxalis oregana Joseph P. Tracy 1906-5-6 2440 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UCR275105  Oxalis oregana Charity A. Hartshorn 2016-5-14 37 Humboldt Arcata Community Forest 244 Comment
  HSC29727  Oxalis oregana J. D. Ackerman, A. M. Montalvo 1973-4-29 75 Humboldt Previously logged area, 2 mi. NE of Kneeland. 457 Comment
  RSA55090  Oxalis oregana R. Kent Beattie 1920-9-20 5921 Humboldt Strongs Station on Van Duzen Fork of Eel River Comment
  CAS-BOT-BC318149  Packera bolanderi var. bolanderi Albert Kellogg; W. G. W. Harford 1868-9 537 Humboldt unspecified Comment
  UC418982  Packera bolanderi var. bolanderi H. E. and S. T. Parks May 1930 747 Humboldt near Blue Slide; Middle Van Duzen River Comment
  UC1103772  Panicum acuminatum var. acuminatum Joseph P. Tracy 1932-9-5 10776 Humboldt Mattole Valley; Northern Coast Ranges, Upper Mattole, Mattole Valley 152 Comment
  UC247375  Panicum acuminatum var. acuminatum A. S. Hitchcock 1915-7-13 527 Humboldt Eureka Comment
  UC526837  Panicum acuminatum var. acuminatum Joseph P. Tracy 1925-7-5 7168 Humboldt High Prairie Bald Mountain (on Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA10050  Panicum capillare Joseph P. Tracy 1930-10-12 9207 Humboldt Eel River, Alton to Fortuna Comment
Read comments
Oct 2 2011
  UC184379  Panicum capillare Joseph P. Tracy 1912-10-20 4009 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC526843  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1931-5-17 9428 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC1103408  Parapholis incurva Joseph P. Tracy 1938-7-15 16070 Humboldt mouth of Eel River 3 Comment
  HSC12554  Parentucellia viscosa D. La Conte 1970-7-7 17 Humboldt Comment
  UCSB30624  Parentucellia viscosa Edwards, David 1974-8-14 Humboldt 3/4 mi. in on dirt road from jct. with Fickle Hill Rd. ca. 1/4 mi. E. of jct. of Park Ave. and Fickle Hill Rd.; where dirt road forks several ways. ca. 50 ft. S. of power line twr. Arcata 121 Comment
  POM288009  Pastinaca sativa Lyman Benson 1928-7-12 811 Humboldt Weott Ranger Station. 61 Comment
  SJSU2547  Pectiantia ovalis H. L. Buckalew 1962-6-28 Humboldt Prairie Cr Redwoods State Park Comment
  HSC20924  Pedicularis densiflora D. E. Anderson 1962-5-1 2202 Humboldt 1 mi. W of Hoopa Comment
  UC582556  Pedicularis densiflora Joseph P. Tracy 1937-4-3 15251 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC902220  Pedicularis densiflora Joseph P. Tracy 1941-3-26 16818 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  SEINET10548991  Pedicularis densiflora subsp. densiflora Jones 1985-4-20 Jones 21 A Humboldt T34n,r6e,sec.21. Burnt ranch campground, shasta-trinity ntl. Froest. Found at Entrance to campground 433 Comment
  POM266544  Pedicularis racemosa Lester Rowntree 1937-8-9 s.n. Humboldt Summit Happy Camp Rd. Comment
  CHSC35535  Pellaea mucronata Thomas Nelson; James Nelson 1976-5-30 2612 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC97912  Penstemon anguineus Cara Witte 2007-6-13 266 Humboldt Along Forest Service Rd. 5N04. Near Grouse Mountain 1538 Comment
  SDSU10915  Penstemon anguineus D. F. Howe 1964-8-7 3945 Humboldt 6.2 miles from #96 on Mill Creek Road, Hoopa Valley. 1067 Comment
  HSC75162  Penstemon azureus J. O. Sawyer, R. J. Cole 1977-7-3 3009 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC55674  Penstemon deustus Walter Overton, Marvin Butler 1979-7-25 9891 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC56080  Penstemon newberryi subsp. berryi G. L. Clifton, Terry Griswold 1979-7-31 11768 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC56231  Penstemon newberryi subsp. berryi Walter Overton 1979-8-1 12307 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  NY627415  Penstemon newberryi var. berryi R. W. Spellenberg 1990-7-9 10229 Humboldt Extreme east edge of county, 6 air miles west-northwest of Hyampom, 36 miles south of CA Highway 299 and Berry Summit on USFS Road 1, ca. 5 miles north of Blake Mountain on South Fork Mountain. 1676.4 Comment
  HSC32679  Penstemon purpusii Thomas W. Nelson 1973-7-10 1029 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  UC146246  Penstemon rattanii Joseph P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC577415  Penstemon rattanii Joseph P. Tracy 1930-8-24 9166 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1222779  Penstemon rattanii Joseph P. Tracy 1951-6-24 19533 Humboldt Cameron Hill , Cameron Hill (Kneeland Prairie) 762 Comment
  UC1222945  Pentachaeta alsinoides Joseph P. Tracy 1946-5-16 17346 Humboldt bench on w side of river 1 mi s Garberville; Eel River Comment
  UCD137788  Pentagramma triangularis subsp. triangularis Linda M. Barker 1976-3-11 1329 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UC205463  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1920-11-14 5411 Humboldt Dows Prairie Northern Coast Ranges ((same place as #5392)) 60 Comment
  HSC75963  Perideridia kelloggii Overton, Butler 1979-8-2 12586 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1222743  Perideridia oregana Joseph P. Tracy 1949-7-19 18388 Humboldt 1/4 mi se Clear Lake (top of ridge); Grouse Mountain 1524 Comment
  HSC64431  Persicaria maculosa J. P. Smith 1971-10-6 4950 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC12023  Persicaria punctata D. Santana 1970-10-28 Humboldt Mad River off Essex Ln., Hwy. 299 Comment
  UCD134922  Petasites frigidus var. palmatus K. Esau 1934-4-1 s.n. Humboldt Above Fort Seward. Comment
  JEPS11985  Phacelia bolanderi Rimo Bacigalupi with G. T. Robbins 1954-6-28 4657 Humboldt 2 mi n Hoopa; Hoopa Indian Reservation, Trinity River 91 Comment
  JEPS1446  Phacelia bolanderi Milo S. Baker 1923-7-10 1 Humboldt hwy s Garberville Comment
  SD90173  Phacelia bolanderi Benjamin C. Stone 1952-6-25 124 Humboldt Hwy 101, 15 mi south of Klamath 14 Comment
  HSC100499  Phacelia circinata Carl C. Marshall Jun 1886 288 Humboldt Coyote Camp. Comment
  RSA275310  Phacelia corymbosa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3576 Humboldt At head of North Fork of Conley creek. 1463 Comment
  UC673228  Phacelia heterophylla subsp. virgata Lincoln Constance and Reed C. Rollins 1942-5-11 2876 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  HSC74222  Phacelia mutabilis M. A. Baker 1980-7-23 3189 Humboldt Near Orleans Mtn. 1859 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
  HSC58188  Phacelia procera G. L. Clifton, Griswold 1979-8-2 12278 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  POM259083  Phalaris aquatica J. T. Howell 1937-7-31 13721 Humboldt 4 miles north of Loleta Comment
  BLMAR51  Phalaris californica Brad Barr June, 1982 51 Humboldt King range, Lake ridge Nroth facing slope Comment
  HSC10560  Phalaris californica J. P. Tracy 1925-6-7 7085 Humboldt Lord-Ellis Rd on Bald Mtn. Comment
  CAS-BOT-BC76556  Philadelphus lewisii W. R. Dudley 1899-6-21 s.n. Humboldt Near Eel River below Dyerville Comment
  UC1035063  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt summit of US Hwy 299 betw. Willow Creek and Blue Lake Comment
  HSC20255  Philadelphus lewisii H. D. Sumner 1959-7-13 Humboldt Dirt road to Hoopa 305 Comment
  RSA10146  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  UC526749  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  HSC35709  Phlox adsurgens Thomas W. Nelson, B. Reinhardt 1975-7-30 2092 Humboldt Grouse Creek side of Last Chance Ridge. Comment
  HSC71667  Phlox adsurgens Gail Newton 1980-6-24 554 Humboldt Near Ladder Rock 1500 Comment
  JEPS79942  Phlox adsurgens Joseph P. Tracy 1932-7-13 10488 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC1347189  Phlox adsurgens Alice Eastwood and John Thomas Howell 1937-6-24 4869 Humboldt 5 mi e Berry; Summit Comment
  UC572265  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 mi ne Bald Mountain; China Flat Quad. Comment
  HSC33147  Phlox diffusa Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1243 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  RSA183632  Phlox diffusa subsp. diffusa D. E. Anderson 1965-4-24 3529 Humboldt Horse Mountain 1524 Comment
  UC673118  Phlox gracilis Joseph P. Tracy 1940-5-17 16550 Humboldt Larrabee Valley 731 Comment
  UC908461  Phlox gracilis Joseph P. Tracy 1930-5-4 8691 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  CAS-BOT-BC141271  Phoradendron serotinum subsp. tomentosum Doris K. Kildale 1925-12-27 1458 Humboldt Kneeland Prairie Comment
  SEINET3290582 Image available Phyllospadix torreyi Joseph P. Tracy 1938-9-9 16146 Humboldt Trinidad Comment
  HSC18715  Physocarpus capitatus Paul Shields Jul 1955 Humboldt 1/2 mi. N of Weott Comment
  CHSC67760  Picea sitchensis Vernon H. Oswald 1997-1-29 8304 Humboldt Mad River County Park NW of Arcata, S of the mouth of Mad River. Comment
  SD42286  Pinus attenuata Carl B. Wolf 1937-8-13 Humboldt North Coast Range, 8 miles east of Hoop Valley on new road towards Trinity Summit 1220 Comment
  NY49723  Pinus contorta var. contorta H. E. Parks 05 1931 s.n. Humboldt Samoa, Pine Barrens Comment
  CAS-BOT-BC73200  Pinus jeffreyi Doris K. Kildale 1927-7-22 3832 Humboldt Lassen's Peaks. Signal Peak. 1791 Comment
  HSC102637  Pinus lambertiana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1621 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC71802  Pinus sabiniana M. A. Baker 1980-6-26 2380 Humboldt Near Sims Creek 610 Comment
  HSC102924  Plagiobothrys M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 862 Humboldt Patterson Meadows 1555 Comment
  JEPS60958  Plagiobothrys bracteatus Joseph P. Tracy 1939-4-29 16232 Humboldt Hoopa Valley 106 Comment
  UC552841  Plagiobothrys bracteatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley (bed of dried-up pond) 152 Comment
  JEPS68075  Plagiobothrys nothofulvus W. L. Jepson 1934-5-7 16738 Humboldt Buckeye Prairie Bull Creek Comment
  UC582613  Plagiobothrys reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt ten mi up stream from the mouth Bear River 152 Comment
  UC668231  Plagiobothrys reticulatus Joseph P. Tracy 1938-6-17 15963 Humboldt s of point Cape Mendocino 3 Comment
  JEPS68131  Plagiobothrys tenellus Joseph P. Tracy 1932-5-17 10070 Humboldt Redwood Creek, at Berry's Northern Coast Ranges 274 Comment
  HSC16826  Plantago erecta L. H. Myers 1963-5-14 13 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  SEINET12330007  Plantago hirtella var. galeottiana F. H. Utech 1986-1 86 -409 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  HSC55273  Plantago lanceolata Overton, Butler 1979-8-2 12653 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC16843  Plantago lanceolata N. R. Waite 1965-5-19 51 Humboldt W edge of Humboldt State University campus. Comment
  HSC16850  Plantago major Anderson 1961-8-25 1748 Humboldt 1.5 mi. S of Trinidad Comment
  HSC89977  Plantago maritima Leonel Arguello 1989-7-14 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. Comment
  HSC67513  Plantago maritima J. P. Smith 1976-7-3 8933 Humboldt Just N of Samoa Bridge Comment
  HSC83041  Plantago maritima A. L. Eicher 1985-6-16 Humboldt SW side of the mouth of Mad River Slough 1 Comment
  HSC53952  Platanthera dilatata Griswold, Butler 1979-7-11 7002 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC55041  Platanthera dilatata var. leucostachys Gilbert Muth 1979-7-31 11506 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC1976  Platystemon californicus D. E. Anderson, N. Dennis 1965-6-8 107 Humboldt Samoa Peninsula along the W side of Humboldt Bay Comment
  CDA24588  Platystemon californicus E. Cohen 2002-4-15 21 Humboldt Eureka. Comment
  BLMAR628  Plectritis congesta subsp. brachystemon Jennifer Wheeler 2011-6-15 628 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  RSA21659  Plectritis congesta subsp. brachystemon Carl B. Wolf 1937-6-14 8814 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  HSC92237  Plectritis congesta subsp. brachystemon John Cromwell, Julie Schneider, A. Thoele 1994-3-19 6 Humboldt Hell's Half Acre, trailhead located 12 mi. S on S Fork Rd. off Hwy. 299 457 Comment
  HSC102147  Pleuropogon refractus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1054 Humboldt Patterson Meadows 1555 Comment
  HSC57304  Pleuropogon refractus G. L. Clifton 1979-7-31 11859 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1103802  Pleuropogon refractus Joseph P. Tracy 1918-4-28 4886 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  CDA32631  Pleuropogon refractus E. C. Whitney 1971-5-28 Humboldt North of Orick 0 Comment
  SEINET200750  Pneumonanthe calycosa Joseph P. Tracy 1939-8-16 16412 Humboldt Horse Mountain . 1402 Comment
  HSC89479  Poa annua P. A. Daly 1986-3-12 76 Humboldt Trinidad Head, along trail 61 Comment
  RSA246887  Poa annua R. F. Thorne, P. Everett 1965-8-8 35255 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UC1607849  Poa annua Harold E. Parks June 1951 Humboldt Spruce Cove Trinidad Comment
  SEINET7297590 Image available Poa bolanderi Joseph P. Tracy 1937-1 15581 Humboldt South Fork Mountain; Openings in fir forest near McKay camp. 1676 Comment
  SEINET10822289  Poa confinis Joseph P. Tracy 1905-4-30 Tracy 278 Humboldt Sand dunes of Ocean Beach. Comment
  HSC10705  Poa douglasii S. J. Moore 1965-5-9 48 Humboldt Dry Lagoon State Park, near entrance. Comment
  UC569487  Poa douglasii H. S. Yates 1936-6-18 5726 Humboldt near mouth Little River; Eureka Quadrangle 4 Comment
  UC70825  Poa douglasii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6181 Humboldt Ferndale Comment
  CAS-BOT-BC246619  Poa howellii Joseph P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie 762 Comment
  UC1103185  Poa kelloggii J. P. Tracy 1901-6-10 11321 Humboldt immediate vicinity Eureka 0 Comment
  UC187251  Poa kelloggii Joseph P. Tracy 1911-6-4 3219 Humboldt along Little River (5 mi from coast); Northern Coast Region 121 Comment
  HSC40338  Poa pratensis Linda M. Barker 1976-6-1 1567 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC74757  Poa pratensis Gail Newton 1981-7-24 2307 Humboldt Near Chaparral Mtn. 1433 Comment
  RSA44525  Poa pratensis Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans. Comment
  UC249872  Poa pratensis subsp. pratensis Joseph P. Tracy 1923-6-3 6254 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  CAS-BOT-BC235984  Poa secunda subsp. secunda Joseph P. Tracy 1933-6-13 12602 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 914 Comment
  HSC70687  Poa secunda subsp. secunda Gail Newton 1980-7-13 1572 Humboldt Near Sims Mountain. 1311 Comment
  UCD92047  Poa secunda subsp. secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 miles W of the Snow Camp. At Beck's Place, Hydesville. (Same place from which Mr. Murphy's (UC Davis) test plots of this species were taken). 1219 Comment
  HSC64159  Polygala californica J. O. Sawyer, K. A. Sawyer 1979-6-24 3405 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC1198993  Polygala californica Joseph P. Tracy 1913-7-20 4377 Humboldt on Redwood Creek near Berry's; Northern Coast Ranges, Redwood Creek 304 Comment
  UC1052454  Polygala cornuta var. cornuta J. Tracy and H. E. Parks Humboldt Hors Linto Road Trinity River 609 Comment
  UC672977  Polygonum amphibium Joseph P. Tracy 1927-5-14 8026 Humboldt Patterson Ranch Trinity River Valley, Willow Creek (in pond) 152 Comment
  HSC99420  Polygonum bistortoides K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 69 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
  SEINET3405167 Image available Polygonum californicum Joseph P. Tracy 1929-8-18 8654 Humboldt Along Van Duzen River, Opposite Buck Mountain Comment
  UC132198  Polygonum convolvulus Joseph P. Tracy 1907-8-20 2600 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC54501  Polygonum douglasii G. L. Clifton, Griswold 1979-7-26 9363 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC99565  Polygonum douglasii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 230 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
  RSA466318B  Polygonum douglasii Thomas W. Nelson, James Nelson 1976-7-28 3057 Humboldt Growing on meadow along 2E27 just N of its Jct. 1S07 1524 Comment
  JEPS50635  Polygonum lapathifolium W. L. Jepson 1921-8-7 9334 Humboldt Stone Lagoon Comment
  CDA2925  Polygonum polystachyum T. C. Fuller 1961-9-27 7040 Humboldt Slope of bluff north above mouth of Redwood Creek, 1.5 miles west of Orick. 0 Comment
  UC175846  Polygonum punctatum Joseph P. Tracy 1912-10-20 3993 Humboldt Loleta Pond Northern Coast Ranges, Eel River Valley 15 Comment
  CAS-BOT-BC76841  Polypodium glycyrrhiza Volney Rattan 1903-1-1 s.n. Humboldt Above Mad River. Comment
  HSC33653  Polypodium glycyrrhiza M. Wetherwax 1975-6-1 171 Humboldt Beside Korbel to Maple Creek rd. 2 mi. SW of Korbel Comment
  RSA47154  Polypodium glycyrrhiza Doris K. Kildale 1928-12-29 6766 Humboldt Unspecified Comment
  SEINET3873640  Polypodium glycyrrhiza P. F. Yull 1966-3-24 111 Humboldt South of Manila School. 140 yards from ocean.; 0 Comment
  UC197920  Polypodium glycyrrhiza Joseph P. Tracy 1914-6-7 4490 Humboldt N. Fork Eel River; Northern Coast Region 0 Comment
  UC955491  Polypodium glycyrrhiza Mrs. Carlotta C. Hall 1924-8-9 234 Humboldt Wilder Ranch near Carlotta 91 Comment
  CAS-BOT-BC72088  Polypodium scouleri John Thomas Howell 1954-4-25 29159 A Humboldt Trinidad Head Comment
  HSC1130  Polypodium scouleri W. R. Supernaugh, Jr. 1964-12-11 14 Humboldt 300 yards S of Trinidad Harbor 9 Comment
  RSA689967  Polypodium scouleri Charlotte M. Hoak 1931-7-15 s.n. Humboldt Below Big Lagoon Comment
  UCSB51220  Polypodium scouleri Almanza, Ed 1976-7-15 Humboldt Cemetary road, east of Hwy. 101, Trinidad 15 Comment
  CAS-BOT-BC233213  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake 15 Comment
  HSC101540  Polypogon monspeliensis J. P. Smith 2010-5-29 12889 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  HSC91882  Polypogon monspeliensis E. Mackey 1986-5-13 Humboldt Patrick's Point State Park. By Wedding Rock. Comment
  UC50476  Polypogon monspeliensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5510 Humboldt near Camp Grant; near Camp Grant Comment
  HSC70656  Polystichum imbricans subsp. curtum Gail Newton 1980-7-14 1533 Humboldt Near Deadman Ridge 1097 Comment
  RSA693276  Polystichum lonchitis Anstruther Davidson 1923-8-10 17060 Humboldt Near Bridgeville Comment
  CAS-BOT-BC76665  Polystichum munitum Doris K. Kildale 1926-7-22 2414 Humboldt Metropolitan, woods near Canyon Park. Comment
  CHSC23905  Polystichum munitum Mark Johnson 1974-4-28 28 Humboldt Adjacent to Lady Bird Johnson Grove, 5 mi ne of Orick. 228 Comment
  UC1063666  Polystichum munitum H. L. Person 1932-7-10 Humboldt Lindsay Creek; Eureka Quadrangle Comment
  UC1440064  Polystichum munitum Danin & H. G. Baker 1960-9-2 658 c Humboldt ca. 2 mi n of Dyerville (High Rock (on W side of Eel River), along Ave. of the Giants) Comment
  JEPS42963  Potamogeton amplifolius W. L. Jepson 1936-8-17 17933 Humboldt Mad River near Arcata; Mad River Comment
  CAS-BOT-BC453765  Potamogeton natans L. R. Abrams 1916-7-18 6094 Humboldt Arcata to Trinidad Comment
  RSA54124  Potamogeton natans Henry M. Pollard 1946-8-16 s.n. Humboldt Near Camp Creek, Orleans region. Comment
  SEINET8475344 Image available Potamogeton pusillus subsp. tenuissimus S. K. Harris 1938-9-12 Humboldt Eel River, near Fernbridge Comment
  HSC18730  Potentilla anserina subsp. pacifica J. F. Knezevich 1967-5-23 453 Humboldt N of Trinidad at Big Lagoon 15 Comment
  UC154224  Potentilla anserina subsp. pacifica J. P. Tracy 1901-5-30 1112 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  RSA232639  Potentilla anserina var. grandis Larry E. DeBuhr, Gary D. Wallace 1972-5-22 609 Humboldt On the beach at Prairie Creek. Redwoods Sate Park Comment
  HSC98883  Potentilla glandulosa subsp. reflexa Cara Witte 2007-7-19 550 Humboldt Forest Service Road 4N32. 1.5 miles east of intersection with 4N70. Grouse Mountain Lookout. 1547 Comment
  SEINET2474968 Image available Potentilla palustris var. villosa Joseph P. Tracy 1923-6-17 6276 Humboldt Big Lagoon 10 Comment
  HSC71584  Prosartes hookeri Gail Newton 1980-6-16 191 Humboldt Near Onion Mtn. 1280 Comment
  HSC15466  Prosartes smithii J. F. Knezevich 1968-5-21 446 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  SEINET12050388  Prosartes smithii F. H. Utech 1988-1 88 -021 Humboldt 3.5 mi N of Phillipsville & 1.5 mi S of Miranda along Avenue of the Giantes (alt US 101) to Miranda 85 Comment
  SEINET8477185  Prosartes smithii W. Roderick 1967-7-22 s.n. Humboldt Trinidad. 15 Comment
  UC1541658  Prunella vulgaris Harold E. Parks May 1933 4309 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  UCR179386  Prunella vulgaris Katherine Esau 1934-5-6 s.n. Humboldt Fort Seward 152 Comment
  HSC14310  Prunella vulgaris H. E. Parks, J. P. Tracy 1930-9-14 7700 Humboldt Vicinity of Bayside Comment
  UC1196726  Prunella vulgaris var. lanceolata Joseph P. Tracy 1914-5-14 4424 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  UC1402061  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-18 622 -30 Humboldt Comment
  UCLA85882  Prunella vulgaris var. lanceolata O. H. Kappler 1946-7-24 1371 Humboldt s of Humboldt Bay Loleta; s of Humboldt Bay Comment
  UC1196729  Prunella vulgaris var. vulgaris Joseph P. Tracy 1925-11-8 7307 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  RSA43859  Prunus avium H. M. Pollard 1948-7-20 s.n. Humboldt River banks, roadsides and edges of forest near Orleans escape Comment
Read comments
Sep 17 2010
  CAS-BOT-BC159980  Prunus emarginata Joseph P. Tracy 1934-9-5 13656 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC159983  Prunus emarginata Doris K. Kildale; L. B. Kildale 1930-5-5 9554 Humboldt Bug Creek, Chaparral Mt. Comment
  HSC101978  Prunus emarginata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 875 Humboldt Patterson Meadows 1566 Comment
  UC1198770  Prunus emarginata Joseph P. Tracy 1920-4-18 5314 Humboldt around Humboldt Bay (Mad River, near bridge on Trinidad Road); Northern Coast Region, Mad River 15 Comment
  UC582512  Pseudognaphalium californicum Joseph P. Tracy 1937-7-11 15415 Humboldt vicinity Garberville 121 Comment
  UCSB30606  Pseudognaphalium californicum Edwards, David 1974-8-14 Humboldt S. side of dirt Rd., ca. 1/2-1/3 mi. in on dirt road from jct. with Fickle Hill Rd., ca. 1/4 mi. from jct. of Fickle Hill Rd. and Park Ave. Comment
  HSC37671  Pseudognaphalium luteoalbum R. Sutherland 1976-8-13 30 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  BLMAR110  Pseudognaphalium stramineum Jennifer Anthony-Wheeler 1994-9-8 110 Humboldt Samoa dunes, growing atop a knoll/dune with I the Samoa Pen. Rare plant area 15 Comment
  UC165750  Pseudognaphalium stramineum Joseph P. Tracy 1909-9-19 3089 Humboldt sand dunes of ocean beach at Humboldt Bay Humboldt Bay Comment
  HSC40526  Pseudognaphalium thermale Thomas W. Nelson, James Nelson 1976-7-28 3060 Humboldt SW-facing outcrop along S.R. 36 ca. 4 mi. W of Dinsmore Comment
  HSC54224  Pseudotsuga menziesii var. menziesii Griswold, Butler 1979-7-12 7287 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  UC915719  Pseudotsuga menziesii var. menziesii W. L. Jepson June 1903 48 Humboldt Briceland Comment
  CAS-BOT-BC72556  Pteridium aquilinum Ira L. Wiggins 1930-7-11 4684 Humboldt near Samoa Comment
  HSC74314  Pteridium aquilinum var. pubescens M. A. Baker 1980-7-20 3050 Humboldt Near Bell Swamps 1463 Comment
  HSC1162  Pteridium aquilinum var. pubescens R. F. Good 1962-5-23 21 Humboldt Surrounding Arcata 60 Comment
  CAS-BOT-BC460596  Pyrola aphylla Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  SBBG59887  Pyrola asarifolia S. W. Hutchinson -Jun-1927 317 Humboldt Redwood Hwy 304 Comment
  HSC76594  Pyrola dentata Teresa Prendusi 1981-7-9 205 Humboldt Near Cedar Camp 1268 Comment
  JEPS66561  Pyrola dentata Joseph P. Tracy 1935-7-30 14356 Humboldt Salmon Summit 1767 Comment
  UC1197578  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit near Corral Prairie; Trinity Summit 1584 Comment
  UC1225818  Pyrola picta Joseph P. Tracy 1948-8-15 18148 Humboldt Trinity Summit, on ridge 2 miles east of Grove's Prairie 1524 Comment
  UC153965  Pyrola picta Joseph P. Tracy 1909-7-31 3047 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC466039  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Sumimt near Corral Prairie 1584 Comment
  HSC54572  Quercus chrysolepis Overton, Butler 1979-7-24 9606 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  UC1196532  Quercus chrysolepis Joseph P. Tracy 1916-9-5 4775 Humboldt 4 mi above Mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UCD45382  Quercus chrysolepis Lincoln Constance 1934-6-15 885 Humboldt Summit of Grasshopper Peak; el. C. 3200 ft. Bull Creek Region. South Fork Eel River, Humboldt County, California. 1158 Comment
  UC405495  Quercus chrysolepis P. E. Goddard 1907-6-16 122 b Humboldt Van Duzen Comment
  RSA44460  Quercus chrysolepis var. nana H. M. Pollard 1947-9-1 s.n. Humboldt Somes Mt. near summit, Orleans region. Comment
  CAS-BOT-BC94308  Quercus garryana L. B. Kildale 1930-8-3 10335 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  UC1052191  Quercus garryana J. L. Meyer 1954-10-10 36 Humboldt 3 mi nw Blocksburg 548 Comment
  UC54686  Quercus garryana Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5854 Humboldt Trinity Summit, at lake near the top North Coast Ranges Comment
  HSC102199  Quercus sadleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1113 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CAS-BOT-BC104533  Quercus vacciniifolia R. Spellenberg 1990-7-10 10245 Humboldt Extreme E edge county, 8 mi WSW of Sayler at 6 mi S of Berry Summit (on Calif. Hwy. 299) on USFS 1 1371 Comment
  HSC44344  Quercus vacciniifolia Brad Klipfel 1975-6-17 692 Humboldt Horse Mtn. Comment
  HSC8296  Quercus vacciniifolia C. B. Wolf 1927-8-28 1173 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Rd. to Blue Lake Comment
  HSC99036  Quercus vacciniifolia Cara Witte 2008-9-27 1047 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. At end of the road. 1407 Comment
  SEINET200362  Ranunculus J. P. Tracy 1921-7-31 5861 Humboldt Fortuna 30 Comment
  HSC36067  Ranunculus aquatilis R. Hager May 1962 Humboldt Turner Draw near Arcata Comment
  HSC40642  Ranunculus californicus var. californicus J. P. Smith, J. O. Sawyer 1975-5-11 8083 Humboldt Samoa Peninsula, just N of Coast Guard Station boundary. Comment
  HSC70255  Ranunculus occidentalis M. A. Baker 1980-6-8 1922 Humboldt Near Buck Flat. 1554 Comment
  UC502921  Ranunculus occidentalis Joseph P. Tracy 1932-7-18 10701 Humboldt Brett Hole Klamath Mountains, Trinity Summit (head) 1828 Comment
  HSC100620  Ranunculus occidentalis Carl C. Marshall May 1886 95 Humboldt Near Scottsville. Comment
  UCD97080  Ranunculus repens Linda M. Barker 1976-6-1 1555 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCR275102  Ranunculus repens Charity A. Hartshorn 2016-4-24 12 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  HSC64220  Ranunculus uncinatus J. O. Sawyer, M. A. Ericksen 1979-6-23 3381 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC162816  Ranunculus uncinatus J. P. Tracy 1910-5-8 3133 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC89520  Raphanus sativus M. Roantree 1985-6-11 86 Humboldt E side of Trinidad Head, near entrance Comment
  UC598568  Rhamnus W. K. Fisher 1899-5-24 3 Humboldt Humboldt Bay Comment
  RSA19036  Rhamnus californica subsp. occidentalis J. T. Howell 1937-7-31 13717 Humboldt 5 miles E of Berry Summit Comment
  POM257951  Rhamnus purshiana H. E. Parks, S. T. Parks 1937-06 24018 Humboldt Spruce Cove, Trinidad. Comment
  UC199231  Rhamnus purshiana V. King Chesnut Jul 1888 Humboldt Mad River Comment
  UC592852  Rhamnus purshiana Doris Kildale Gillespie 1932-9-1 Humboldt 1 block n Henderson St. (on S Street, Eureka); Eureka 30 Comment
Read comments
Mar 1 2013
  UC592944  Rhamnus purshiana Carl B. Wolf 1931-8-30 Humboldt e side Eureka (on P Street, 1 block n of Henderson Street) 30 Comment
  UC902199  Rhamnus purshiana Joseph P. Tracy 1948-8-22 18101 Humboldt 5 mi e Carlotta (flat by old Strong's District School House) 60 Comment
  UCD23454  Rhododendron columbianum K. Niles 1950-9-20 s.n. Humboldt Big Lagoon. Comment
  HSC33060  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Old Kneeland Rd. Comment
  HSC7873  Rhododendron macrophyllum P. Markle 1962-5-22 54 Humboldt End of 18th St., Arcata Community Forest Comment
  UC562739  Rhododendron macrophyllum Joseph P. Tracy 1936-8-24 15180 Humboldt 6 mi se of Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC183661  Rhododendron occidentale Joseph P. Tracy 1913-9-7 4389 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC200385  Rhododendron occidentale var. paludosum Doris K. Kildale 1928-7-1 5305 Humboldt French Camp - Orick-Martin's [Martins] Ferry road Comment
  HSC35751  Rhododendron occidentale var. paludosum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1995 Humboldt French Camp, Bald Hills. Comment
  POM89461A  Rhododendron occidentale var. paludosum L. R. Abrams 1922-6-25 8253 Humboldt Arcata. Comment
  UC1198922  Ribes binominatum Joseph P. Tracy 1949-7-19 18385 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC92881  Ribes bracteosum M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka. Comment
  HSC20278  Ribes bracteosum D. E. Anderson 1965-5-8 3632 Humboldt 0.6mi W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  UC70553  Ribes bracteosum J. Burtt Davy 1899-6-13 5504 Humboldt near Camp Grant; North Coast Ranges, Eel River Comment
  CAS-BOT-BC108907  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1939-4-27 16227 Humboldt Mouth of Little River. 6 Comment
  SEINET3121266 Image available Ribes divaricatum var. pubiflorum Joseph P. Tracy 1945-5-10 17507 Humboldt Rick's Prairie 46 Comment
  HSC48834  Ribes lacustre Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 45 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  RSA0021102  Ribes lacustre Thomas W. Nelson, Jane P. Nelson 1977-6-19 3490 Humboldt [Mount] Lassic. 1616 Comment
  CAS-BOT-BC176805  Ribes laxiflorum Alice Eastwood 1907-4-22 45 Humboldt Near [Orricks] Orick Comment
  HSC103227  Ribes lobbii Jade Paget-Seekins 2010-6-13 18 Humboldt Groves Prairie. From the campsite next to the prairie walk almost to the end of the prairie, turn right, walk down the slope towards the creek. 1254 Comment
  JEPS48559  Ribes lobbii Hilda W. Grinnell 1932-7-9 7 Humboldt below Camp McKay; So. Fork Mt. 1584 Comment
  UC1198925  Ribes lobbii Joseph P. Tracy 1936-8-8 15139 Humboldt ne Hawkins Bar.; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC205483  Ribes lobbii Joseph P. Tracy 1919-9-18 5247 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  UC902101  Ribes lobbii Joseph P. Tracy 1942-6-23 17234 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC102025  Ribes marshallii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 926 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  UC492233  Ribes marshallii Joseph P. Tracy 1932-7-15 10580 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC206035  Ribes menziesii Alice Eastwood 1921-7-21 10654 Humboldt Carlotta Comment
  CAS-BOT-BC206042  Ribes menziesii A. A. Heller 1924-7-24 s.n. Humboldt Near Humboldt County camp on the redwood highway 7 miles south of Trinidad Comment
  CSUSB1881  Ribes menziesii Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  UC183577  Ribes menziesii Joseph P. Tracy 1912-3-31 3568 Humboldt Blue Lake Northern Coast Ranges 30 Comment
  UC552231  Ribes menziesii Joseph P. Tracy 1933-5-20 12268 Humboldt near Petrolia; North Coast Ranges, Mattole Valley 15 Comment
  RSA0021771  Ribes menziesii Doris K. Kildale 1927-2-22 s.n. Humboldt Bucksport, near Eureka. Comment
  HSC76265  Ribes sanguineum Teresa Prendusi 1981-7-24 511 Humboldt Near Whiteys Peak 1634 Comment
  UC709454 Image available Ribes sanguineum Joseph P. Tracy 1941-4-8 16852 Humboldt Trinity Highway Willow Creek Canyon 762 Comment
  UC902091  Ribes sanguineum Joseph P. Tracy 1948-9-5 18178 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC144677  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-6-25 4617 Humboldt Sand dunes 2 miles north of Samoa Comment
  HSC95674  Ribes sanguineum var. glutinosum Kevin Thomas 2004-3-18 4 Humboldt Near Clam Beach exit of Hwy. 101 N, along old Hwy. 101, at end of Little River Rd. Comment
  CDA25580  Ribes sanguineum var. sanguineum Gordon Leppig 1998-6-1 875 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  CHSC97983  Ribes viscosissimum April A. Allard; Gregory D. O'Connell 2005-6-15 13 Humboldt NE of Grouse Mtn. Roadside. 5339 Comment
  HSC97475  Ribes viscosissimum Cara Witte 2007-5-23 110 Humboldt Forest Service Road 4N70 to Grouse Mountain Lookout. 1601 Comment
  HSC99027  Ribes viscosissimum Cara Witte 2008-7-1 783 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  UC1199149  Rigiopappus leptocladus Joseph P. Tracy 1916-6-19 4737 Humboldt near Alder Point; Northern Coast Ranges, Cahto Creek 152 Comment
  UC1223447  Rigiopappus leptocladus Joseph P. Tracy 1950-7-6 18996 Humboldt on the Albee Road two mi s Burr Valley 1158 Comment
  HSC84930  Romanzoffia californica R. N. Raynor 1935-4-8 Humboldt Fort Seward Comment
  UC660024  Romanzoffia tracyi Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-18 2619 Humboldt ocean bluffs n. of Trinidad 30 Comment
  UC775204  Romanzoffia tracyi J. P. Tracy and H. E. Parks 1933-5-9 11008 Humboldt Vicinity of Trinidad; bluff near ocean; vicinity of Trinidad, Humboldt Co. 15 Comment
  HSC12697  Rorippa curvisiliqua Jana Kattenhorn 1970-10-28 146 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  JEPS53810  Rorippa nasturtium-aquaticum Lincoln Constance 1934-5-29 735 Humboldt Upper Look Prairie , South Fork Eel River, Upper Look Prairie (Bull Creek Region) 365 Comment
  JEPS47282  Rosa eglanteria W. L. Jepson 1936-8-15 17902 Humboldt Strongs station Van Duzen River, Grizzly Creek Comment
  UC527555  Rosa eglanteria C. B. Wolf 1931-8-28 2363 Humboldt 1/8 mi from kRohnerville on road to Fortuna Comment
  CAS-BOT-BC146498  Rosa gymnocarpa Ira L. Wiggins 1930-7-22 4695 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  HSC39397  Rosa gymnocarpa D. E. Anderson, J. P. Smith 1971-6-28 1251 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC44515  Rosa gymnocarpa Brad Klipfel 1973-7-1 123 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74196  Rosa gymnocarpa M. A. Baker 1980-7-23 3167 Humboldt Near Orleans Mtn. 1859 Comment
  HSC76238  Rosa gymnocarpa Teresa Prendusi 1981-7-21 268 Humboldt Near Whiteys Peak 1646 Comment
  HSC81926  Rosa gymnocarpa Thomas W. Nelson, Jane P. Nelson 1979-7-3 4953 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UCD113883  Rosa gymnocarpa T. E. Weier 1942-5-21 s.n. Humboldt Perriot's Redwood Grove, near Dyerville, Highway 101. Comment
  CAS-BOT-BC146841  Rosa nutkana L. R. Abrams 1916-7-20 6146 Humboldt Between Eureka and Alton Comment
  UC183754  Rosa nutkana var. nutkana Joseph P. Tracy 1912-10-20 3998 Humboldt Alton Northern Coast Region 30 Comment
  CAS-BOT-BC146882  Rosa rubiginosa Alice Eastwood 1921-7-21 10650 Humboldt Carlotta Comment
  HSC12760  Rubus armeniacus M. J. Athey 13 Oct [year missing] 15 Humboldt Trinidad Comment
  RSA244511  Rubus discolor Larry E. DeBuhr, Gary D. Wallace 1973-9-16 s.n. Humboldt Near entrance of Prairie Creek Redwoods State Park Comment
  UC709448  Rubus lasiococcus Joseph P. Tracy 1941-8-24 17042 Humboldt near McKay camp (South Fork Mountain); , near McKay camp 1676 Comment
  HSC19651  Rubus leucodermis Lincoln Constance 1934-5-24 655 Humboldt S Fork Eel River, bordering lower Look Prairie on E. side 122 Comment
  HSC37399  Rubus leucodermis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 511 Humboldt Along Lost Man Creek. 38 Comment
  HSC73244  Rubus leucodermis M. A. Baker 1980-5-18 1341 Humboldt Near Black Mtn. 792 Comment
  HSC74680  Rubus leucodermis Gail Newton 1981-7-10 2225 Humboldt Near Board Camp Butte 1494 Comment
  UC154208  Rubus parviflorus J. P. Tracy 1900-5-22 799 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC666863  Rubus parviflorus Joseph P. Tracy 1937-5-17 15299 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  SEINET11910996  Rubus parviflorus F. H. Utech 1986-1 86 -394 Humboldt ca 5 mi N on Kings Peak Rd., from junction with Shelter Cove Rd., near Tolkan Recreation Area 480 Comment
  HSC56343  Rubus ursinus Griswold, Butler 1979-7-10 6268 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC79483  Rubus ursinus Kenneth Clark 1980-3-24 547 Humboldt Shelter Cove, N fork of Deadman's Gulch 69 Comment
  UC467855  Rubus ursinus Joseph Burtt Davy and Walter C. Blasdale 1899-5 5401 Humboldt Hubbards Station Hubbards Station (nw California) Comment
  UCD17837  Rubus ursinus H. Olmo 8-10 May 1962 62- 39 Humboldt California. Humboldt County: 0.5 miles west of Dinsmore. Comment
  UCD17930  Rubus ursinus H. Olmo; T. S. Mallah 1953-4-3 53- 59 A Humboldt California. Humboldt County: Jordan Street in Rohnerville. In city limits, 0.5 blocks west of the north side of the Richfield filling station. Comment
  POM271074  Rubus vitifolius Lyman D. Benson 1929-7-15 1814 Humboldt Clam Beach. Trinidad. Comment
  HSC35025  Rudbeckia occidentalis K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  RSA20785  Rudbeckia occidentalis C. B. Wolf 1937-8-13 9250 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit 1524 Comment
  HSC55016  Rumex acetosella Overton, Butler 1979-7-31 11408 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  SBBG52989  Rumex acetosella J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, Loleta Comment
  UC1541400  Rumex acetosella W. K. Parks Apr 1934 5279 Humboldt Spruce Cove Trinidad Comment
  HSC17578  Rumex acetosella Allan R. Marshall 1962-5-22 30 Humboldt Back of Wildlife Building, HSU campus 30 Comment
  HSC44478  Rumex acetosella Brad Klipfel 1973-7-15 194 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC153979  Rumex occidentalis Joseph P. Tracy 1910-6-5 3148 Humboldt near Samoa; Northern Coast Region, Humboldt Bay Region 0 Comment
  UC672927  Rumex occidentalis Joseph P. Tracy 1936-6-3 14854 Humboldt near Lack Pond; Trinity River Valley, Willow Creek 152 Comment
  HSC95362  Rumex salicifolius var. transitorius Andrea Pickart 2002-8-8 200 Humboldt Arcata bottoms, Lanphere Rd. near end 20 Comment
  UC495729  Rupertia physodes Joseph P. Tracy 1930-6-15 8765 Humboldt near Blocksburg; Northern Coast Ranges 457 Comment
  SEINET6933889  Rupertia physodes Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Dald Hills, southeast of Orick. Comment
  UC161048  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-4-30 2172 Humboldt sand dunes of Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC95580  Salicornia depressa Andrea Pickart 2002-7-19 180 Humboldt Arcata Marsh at end of I St. 0 Comment
  CAS-BOT-BC132711  Salix A. T. Whittemore 1980-3-15 80 -005 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CAS-BOT-BC129898  Salix bonplandiana Joseph P. Tracy 1933-6-9 12529 Humboldt Shively - Northern Coast Ranges 30 Comment
  CAS-BOT-BC103455  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt in McKay Meadow, Trinity Summit 1524 Comment
  HSC99700  Salix exigua Glenn W. K. Shelton 2010-7-10 30 Humboldt Van Duzen River along State Rte. 36, 2 mi. W of Grizzly Creek Redwoods State Park, across from mile marker 15.00 91 Comment
  POM220144  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 969 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC512028  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1330 Humboldt near bridge on Trinity Hwy. Trinity R. 152 Comment
  CAS-BOT-BC104115  Salix hindsiana Joseph P. Tracy 1933-5-19 12203 Humboldt Eel River, Alton to Fortuna 15 Comment
  HSC19957  Salix hookeriana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-11 1211 Humboldt 1 mi. N of Samoa, near coast 0 Comment
  HSC19966  Salix hookeriana J. P. Tracy, H. E. Parks Apr 1923 7923 Humboldt Little River Lagoon Comment
  HSC90466  Salix hookeriana Jean Hanson 1980-3-8 31 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS12927  Salix hookeriana Joseph P. Tracy 1931-5-3 9356 Humboldt near Luffenholz Creek (near ocean); Northern Coast Region, Trinidad 60 Comment
  JEPS13092  Salix hookeriana Joseph P. Tracy 1936-2-23 14773 Humboldt Fortuna; bank of Eel River 15 Comment
  JEPS14758  Salix hookeriana Joseph P. Tracy 1926-1-10 7345 Humboldt Carlotta; Northern Coast Ranges 60 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
  UC1225922  Salix hookeriana Joseph P. Tracy 1947-7-2 17758 Humboldt 6 mi s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC470430  Salix hookeriana Joseph P. Tracy 1931-5-23 9435 Humboldt near Trinidad Station; Northern Coast Region, vicinity of Trinidad 60 Comment
  UC481334  Salix hookeriana Harold E. Parks Aug 1931 1057 Humboldt Bishop Pine Lodge Trinidad 150 Comment
  UC492329  Salix hookeriana Harold E. and Susan T. Parks 1932-4-3 1100 Humboldt Little R. Lagoon Trinidad; , Little River Lagoon Comment
  UC504055  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 4 Humboldt around Eureka Comment
  UC512082  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1223 Humboldt 1 mi n Samoa (pine barrens near the coast) Comment
  UC512105  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1208 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC519333  Salix hookeriana Joseph P. Tracy 1933-5-20 12263 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC537984  Salix hookeriana Joseph P. Tracy 1934-9-22 13676 Humboldt mouth of Mad R.; North Coast Ranges, Mad R. 9 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
  UC490521  Salix laevigata Joseph P. Tracy 1932-4-23 9834 Humboldt 4 mi. s. Dyerville (S. Fork Eel R.); Northern Coast Ranges, S. Fork Eel R. 60 Comment
  UCD111531  Salix lasiandra var. lasiandra Linda M. Barker 1976-9-3 1690 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC107611  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-13 1253 Humboldt On gravelly floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107617  Salix lasiolepis Harold E. Parks 1931-9-26 9696 Humboldt Redwood Creek, at Berry's 274 Comment
  HSC19997  Salix lasiolepis J. P. Tracy 1933-3-19 10934 Humboldt Bridgeville, along Van Duzen River 229 Comment
  JEPS14769  Salix lasiolepis Joseph P. Tracy 1932-10-8 10867 Humboldt on Trinity Hwy. Berry's Mt. 762 Comment
  UC303034  Salix lasiolepis Joseph P. Tracy 1926-5-1 7451 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469410  Salix lasiolepis Joseph P. Tracy 1927-4-10 7885 Humboldt Redwood Creek, at Berry's 274 Comment
  UC481175  Salix lasiolepis Harold E. and Susan T. Parks 1931-8-15 1079 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 100 Comment
  UC490549  Salix lasiolepis Joseph P. Tracy 1932-4-24 9804 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC490584  Salix lasiolepis Joseph P. Tracy 1932-6-4 10128 Humboldt Bridgeville 228 Comment
  UC506388  Salix lasiolepis Joseph P. Tracy 1932-8-21 10357 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (on lower western foothills of mt.) 457 Comment
  UC506399  Salix lasiolepis Joseph P. Tracy 1932-8-21 10359 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 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
  UC512017  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1340 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River Comment
  UC519347  Salix lasiolepis Joseph P. Tracy 1933-10-15 13092 Humboldt along S. Fork Eel R. near Miranda; North Coast Ranges, S. Fork Eel R. 91 Comment
  CAS-BOT-BC107288  Salix lasiolepis var. bigelovii Joseph P. Tracy 1933-4-9 10968 Humboldt along Van Duzen R. 228 Comment
  CAS-BOT-BC107403  Salix lasiolepis var. lasiolepis Doris K. Kildale 1928-4-29 5958 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC107420  Salix lasiolepis var. lasiolepis Alice Eastwood 1913-7-3 3416 Humboldt Bear River, McCourtneys Bridge Comment
  RSA10910  Salix lasiolepis var. sandbergii Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1324 Humboldt Berry's Mountain. E of Redwood Creek. On Trinity Hwy. 762 Comment
  RSA273414  Salix lucida subsp. lasiandra Thomas W. Nelson 1976-3-22 2278 Humboldt Along S side of the Eureka Muni Golf Course. Comment
  RSA34304  Salix lucida subsp. lasiandra Doris K. Kildale 1927-3-20 2926 Humboldt Stevens Grove. Comment
  SBBG57828  Salix lucida subsp. lasiandra H. E. Parks, J. P. Tracy 1931-5-17 966 Humboldt banks of Willow Crk Comment
  CAS-BOT-BC125632  Salix melanopsis Joseph P. Tracy 1931-9-7 9647 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  LA208935  Salix melanopsis Harold E. Parks; 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  SD919  Salix melanopsis Harold E. Parks 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC469459  Salix melanopsis Joseph P. Tracy 1931-9-26 9700 Humboldt Redwood Creek at Berrys; Northern Coast Ranges, Redwood Creek 274 Comment
  UC470457  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
  UC481309  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 973 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC490564  Salix melanopsis Joseph P. Tracy 1932-5-1 9849 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC54764  Salix melanopsis P. E. Goddard 1901-7 16 Humboldt Hupa Comment
  SEINET4855525  Salix parksiana Harold E. Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC129201  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1210 a Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad, appraximately at sea level. Comment
  CAS-BOT-BC129207  Salix piperi Doris K. Kildale 1927-5-15 3291 Humboldt Mattole River Valley Comment
  HSC102196  Salix scouleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1110 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
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Jul 9 2015
  HSC98583  Salix scouleriana Cara Witte 2008-7-25 938 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1324 Comment
  UC1173625  Salix scouleriana Joseph P. Tracy 1937-3-21 15238 Humboldt near Grizzly Creek Van Duzen R. 91 Comment
  UC249646  Salix scouleriana Joseph P. Tracy 1923-1-7 6136 Humboldt Table Bluff Northern Coast Ranges, Table Bluff 91 Comment
  UC490502  Salix scouleriana Joseph P. Tracy 1932-2-7 9769 Humboldt Scotia Northern Coast Ranges, Scotia 30 Comment
  CHSC96718  Salix sitchensis Gordon Leppig 2005-4-8 2212 Humboldt Humboldt Bay Dunes and Wetlands. Eureka, Edge of PALCO Marsh, brackish marsh at west end of W. Hawthorne St. NAD 27 UTM Zone 10, 4515862 N, 400315 E. 3 Comment
  HSC90380  Salix sitchensis Jean Hanson 1980-3-8 4 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  POM219568  Salix sitchensis H. E. Parks 1931-3-24 910 Humboldt Trinidad. 90 Comment
  SBBG21982  Salix sitchensis R. F. Thorne 1957-9-2 Humboldt Eel River at Burlington State Park, just S of Weott Comment
  UC469468  Salix sitchensis Joseph P. Tracy 1931-11-8 9748 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481215  Salix sitchensis Harold E. Parks 1931-5-20 995 Humboldt Mad R. Blue Lake; , Blue Lake 15 Comment
  UC492341  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC1196608  Salix tracyi Joseph P. Tracy 1926-8-12 7761 Humboldt Redwood Creek, at Berry's 274 Comment
  UC526713  Salix tracyi Joseph P. Tracy 1934-3-25 13167 Humboldt Blue Slide, on Van Duzen River 91 Comment
  JEPS12746  Sambucus mexicana W. L. Jepson 1932-7-24 16390 Humboldt Mail Ridge 914 Comment
  JEPS26115  Sambucus mexicana Peter H. Raven with R. Snow 1958-7-20 13643 Humboldt on Titlow Hill Rd 1.1 mi s junction of Friday Ridge Road (near Grouse Ridge) Comment
  HSC56467  Sambucus nigra subsp. caerulea Griswold, Butler 1979-7-12 7275 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  CAS-BOT-BC235125  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt 1 mi. so. of Trinidad 91 Comment
  HSC3971  Sambucus racemosa var. racemosa R. A. Rasp 1964-5-20 44 Humboldt HSU campus, beside Jolly Giant Creek. Comment
  UC1199043  Sanguisorba minor subsp. muricata Joseph P. Tracy 1942-7-9 17274 Humboldt Eureka; grown in garden fr seed of plants introd into stock ranges of Humboldt Co. as forage plant to compete against Klamath weed 30 Comment
  HSC21612  Sanicula arctopoides J. R. Kahl 1962-4-13 16 Humboldt 1 mi. N of Samoa, 1,200 yds. from ocean Comment
  UC1197112  Sanicula arctopoides J. P. Tracy 1899-4-9 303 Humboldt immediate vicinity of Eureka (at Bucksport); Bucksport 0 Comment
  HSC77511  Sanicula arctopoides K. Berg 1984-4-8 519 Humboldt Centerville Beach, about 0.5 mi. N of County Park parking lot Comment
  HSC95577  Sanicula arctopoides Andrea Pickart 2002-3-14 7 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  HSC100691  Sanicula bipinnata Carl C. Marshall 432 Humboldt Spruce Grove. Comment
  HSC77963  Sanicula crassicaulis L. P. Janeway, Paul Wilson 1984-5-7 762 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  HSC82103  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1980-5-25 5264 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  UC1022528  Sanicula crassicaulis C. Ritchie Bell 1952-5-14 3 X456 Humboldt Patrick Point State Park Comment
  UC1022530  Sanicula crassicaulis C. Ritchie Bell 1952-5-2 3 X450 Humboldt 1.1 mi w of Hydesville Comment
  UC1197087  Sanicula laciniata Joseph P. Tracy 1935-4-14 13779 Humboldt along South Fork of Eel River, Miranda South Fork of Eel River; South Fork Eel River, Miranda 121 Comment
  UC1222809  Sanicula tracyi Joseph P. Tracy 1950-4-20 18606 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); along Van Duzen River, opposite Buck Mountain 762 Comment
  UC1368468  Sanicula tuberosa R. K. Gierisch and D. H. Esplin 1969-7-1 3531 Humboldt Six Rivers Forest/Experimental Area, Grouse Mt. Grouse Mt.; Six Rivers Forest/Experimental Area, Grouse Mt. 1584 Comment
  CDA20173  Sanicula tuberosa P. Haggard 2003-6-24 PDR 069700 Humboldt Northwestern California; Grouse Mountain. 0 Comment
  HSC102071  Saxifraga aprica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 973 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS47544  Saxifraga mertensiana Joseph P. Tracy 1922-4-30 6009 Humboldt mouth of South Fork Trinity River (Martin Ranch); Northern Coast Ranges, , Martin Ranc 152 Comment
  RSA24203  Saxifraga mertensiana Carl B. Wolf 1941-3-2 9991 Humboldt N Coast Range. 2 miles S of Honeydew along Honeydew Creek. 152 Comment
  UCSB29348  Saxifraga mertensiana Phelps, M. 1972-3-19 Humboldt Near Old Somerville Homestead, Elk Ridge 609 Comment
  RSA91475  Schoenoplectus maritimus F. W. Peirson 1923-7-11 4271 Humboldt Flats north of Eureka Comment
  HSC93525  Schoenoplectus pungens Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  UC1474277  Scilla hispanica M. S. Miller 1965-3-16 4 Humboldt Humboldt State College Campus Arcata (city of Arcata) Comment
  CDA18245  Scirpus microcarpus G. D. Barbe, T. C. Fuller 1974-6-19 1883 Humboldt North Coast Ranges; Arcata, US Hwy 101 at Saint Louis Rd. 12 Comment
  UC183681  Scirpus microcarpus Joseph P. Tracy 1914-9-13 4628 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  UCSC000121  Scirpus paludosus H. L. Person 1932-5-11 s.n. Humboldt near Arcata - Eureka Comment
  CAS-BOT-BC517414  Scoliopus bigelovii Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC517416  Scoliopus bigelovii Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  SEINET12050518  Scoliopus bigelovii F. H. Utech 1988-1 88 -024 Humboldt 1.5 mi WNW of Weott on Ave of the Giants (alt US 101), W.D. & W.H. Clark Redwood Grove 40 Comment
  UC147885  Scrophularia californica J. P. Tracy 1906-5-20 2465 Humboldt immediate vicinity Eureka 0 Comment
  HSC97304  Scutellaria antirrhinoides Bryan Atkinson, Jenny Lynn Hutchinson 2007-6-11 4 Humboldt Near Grouse Mtn., 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1341 Comment
  UC1239708  Scutellaria antirrhinoides Joseph P. Tracy 1935-6-23 13966 Humboldt French Camp Ridge 1066 Comment
  HSC35621  Scutellaria antirrhinoides Thomas W. Nelson, B. Reinhardt 1975-7-30 2115 Humboldt E of Pilot Rock Comment
  UC1239710  Scutellaria antirrhinoides Joseph P. Tracy 1919-5-31 5154 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC25790  Scutellaria antirrhinoides Chesnut and Drew July 1888 Humboldt Campbells Comment
  UC154015  Scutellaria californica Joseph P. Tracy 1908-6 2817 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA178561  Sedum divergens Joseph P. Tracy 1950-8-8 19294 Humboldt Croghan Hole, on Trinity Summit Comment
  HSC58203  Sedum laxum Walter Overton 1979-8-1 12309 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  UC1488733  Sedum laxum Marc Baker 1980-7-15 2941 Humboldt near Whiting Ridge; Pilot Creek Quad., near Whiting Ridge 300 Comment
  HSC57458  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-26 10290 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  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
  HSC97996  Sedum radiatum Cara Witte 2007-7-8 440 Humboldt Board Camp Mountain. Trail 4E28. 1498 Comment
  JEPS48046  Sedum radiatum W. L. Jepson 1902-6-20 1890 Humboldt Ft. Seward Ranch Ridge Ft. Seward Ranch ridge, Mail Ridge (= Mail Ridge, Rocky points) 1066 Comment
  HSC74677  Sedum spathulifolium Gail Newton 1981-5-16 2170 Humboldt Near Bug Creek. 1228 Comment
  BLMAR101  Sedum spathulifolium Jennifer Anthony-Wheeler 1994-6-10 101 Humboldt King range, growing alng rocky cut bank beside smith-etter 731 Comment
  CAS-BOT-BC59127  Sedum spathulifolium Henry M. Pollard 1948-7-28 s.n. Humboldt River road near Orleans Comment
  RSA0081470  Sedum spathulifolium Dave Kelly, W. Wisura 1986-7-27 4130 Humboldt 13.2 miles E of Bridgeville, along Hwy 36. Comment
  RSA0081473  Sedum spathulifolium C. B. Wolf 1927-8-28 1163 Humboldt 8 miles above Weitchpec, Trinity River. Comment
  HSC6481  Sedum spathulifolium var. spathulifolium B. R. Templeton 1962-5-24 Humboldt W side of Berry Summit Comment
  RSA170262  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt Near Korbel. 640 Comment
  CAS-BOT-BC69738  Selaginella wallacei Joseph P. Tracy 1932-3-20 9783 Humboldt Trinidad. 60 Comment
  HSC38491  Selaginella wallacei D. E. Anderson, J. P. Smith 1971-6-18 - 1097 Humboldt Horse Mtn. Comment
  CAS-BOT-BC364018  Senecio integerrimus var. major L. B. Kildale 1928-5-27 5957 Humboldt Kneeland Prairie 853 Comment
  HSC82545  Senecio integerrimus var. major Thomas W. Nelson 1979-7-11 5003 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC27280  Senecio jacobaea H. Hilton 1973-9-20 Humboldt Near the Orick Dump Comment
  HSC68086  Senecio triangularis J. P. Smith, Steve Selva 1970-6-30 4114 Humboldt Comment
  HSC12594  Senecio vulgaris C. Kline 1970-10-24 36 Humboldt Humboldt State college campus Comment
  SEINET11802700  Senecio vulgaris J. P. Tracy 1943-1 17454 Humboldt Eel River Bar at mouth of Van Duzen, near Alton Comment
  CHSC74935  Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-11-1 Humboldt Humboldt Redwoods State Park. On the flood plain of the Founder's Grove. Comment
  JEPS48274  Sequoia sempervirens Willis Corbitt 1931-4-8 Humboldt Scotia Comment
  RSA167269  Sequoia sempervirens Joseph P. Tracy 1950-12-18 19387 Humboldt At Park s place, Trinidad 3 Comment
  UC180191  Sericocarpus oregonensis subsp. oregonensis Joseph P. Tracy 1914-9-6 4620 Humboldt Bald Mountain, between High Prairie and Snow camp Bald Mountain 1066 Comment
  CHSC40213  Sherardia arvensis L. P. Janeway 1984-5-13 775 Humboldt Along the Kneeland/Bridgeville Road ca 15 mi east of the Kneeland post office just past Lone Star Junction and near Lone Star Creek. 609 Comment
  UC1222776  Sherardia arvensis Joseph P. Tracy 1950-6-18 18854 Humboldt on top Cape Ridge Comment
  RSA46486  Sherardia arvensis Doris K. Kildale 1926-4-25 1806 Humboldt Willow Creek Flat. 152 Comment
  UC170180  Sidalcea asprella subsp. nana Harley P. Chandler June, 1901 1466 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  HSC62693  Sidalcea malviflora Michelle Stevens 1979-5-25 139 Humboldt Junction of Hwy. 96 and the GO Rd. 640 Comment
  UC146164  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1908-6 2813 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 457 Comment
  HSC57355  Sidalcea malviflora subsp. nana Overton, Butler 1979-7-26 10047 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  SEINET6947342  Sidalcea malviflora subsp. patula W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  JEPS67267  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-8-12 15653 Humboldt Snow Camp 1402 Comment
  HSC82167  Silene bernardina D. K. Imper 1985-6-18 Humboldt Above FS Rd. 10N01 just NW of Whitey's Peak 1738 Comment
  HSC82112  Silene bolanderi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5256 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  RSA183641  Silene californica D. E. Anderson 1965-5-15 3709 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  UC161054  Silene californica Harley P. Chandler May, 1901 1259 Humboldt North Coast Ranges, Redwood Belt North Coast Ranges 152 Comment
  UCR123953  Silene californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6965 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  UC302999  Silene campanulata subsp. glandulosa Joseph P. Tracy 1926-6-20 7623 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  RSA21442  Silene campanulata subsp. glandulosa C. B. Wolf 1937-8-12 9206 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  HSC57065  Silene douglasii Overton, Butler 1979-7-24 9735 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC37960  Silene gallica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  CAS-BOT-BC387077  Silene gallica Doris K. Kildale 1928-5-30 6037 Humboldt mouth of Lindsey Creek Comment
  UC14434  Silene hookeri Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  CAS-BOT-BC181231  Silene hookeri subsp. bolanderi L. R. Abrams 1918-6-15 7114 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  HSC57102  Silene laciniata subsp. californica Overton, Butler 1979-7-25 9834 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  CAS-BOT-BC389062  Silene laciniata subsp. californica A. M. Vollmer; L. Beane 1951-6-6 126 Humboldt On road between Orick and Weitchpec Comment
  HSC4163  Silene laciniata subsp. californica Francis Winter 1960-5-7 Humboldt 2 mi. E of Pine Ridge Summit along hwy. 610 Comment
  CAS-BOT-BC389262  Silene lemmonii Joseph P. Tracy 1932-7-12 10452 Humboldt Trinity Summit. Near Corral Prairie 1584 Comment
  UC1198792  Sisymbrium altissimum Joseph P. Tracy 1937-5-31 15319 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC49362  Sisyrinchium bellum R. York 1979-4-13 219 Humboldt Just N of College Cove, 1 mi. N of Trinidad Comment
  SEINET6744567 Image available Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge, Humboldt County, California. Alt. Ca. 33 m. Comment
  UC1051527  Sisyrinchium bellum Helen K. Sharsmith 1953-6-28 4384 Humboldt between Bell Springs and Blue Rock Ranch (on Bell Springs Road); Inner North Coast Ranges 853 Comment
  RSA311326  Sisyrinchium californicum Robert F. Thorne 1957-9-3 19018 Humboldt Patricks Point State Park. Comment
  UC275574  Sisyrinchium californicum Joseph P. Tracy 1924-8-3 6764 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  HSC48534  Sisyrinchium californicum Mark Flippo 1978-4-18 25 Humboldt McKinleyville, Bella Vista Hill Comment
  UC666973  Smilacina racemosa Joseph P. Tracy 1938-6-13 15908 Humboldt Horse Mountain 1432 Comment
  POM319387  Solanum laciniatum Patricia Wilder 1968-8-21 4405 Humboldt Northern coastal arm of Humboldt Bay, ca 2 miles SW of Samoa. Humboldt Bay drainage area. 5 Comment
  CAS-BOT-BC83504  Solanum lycopersicum Henry M. Pollard 1948-7-21 s.n. Humboldt Orleans Comment
  HSC41004  Solanum parishii J. O. Sawyer 1975-10-17 2715 Humboldt Near Box Camp on Big Hill Rd. to N Trinity Mtn. Comment
  HSC73842  Solanum parishii Gail Newton 1980-6-7 137 Humboldt Near Brush Mtn. 1128 Comment
  JEPS12167  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  SEINET11801714  Solidago canadensis var. salebrosa J. P. Tracy 1948-1 18210 Humboldt Trinity Summit, meadow at Box Camp 1463 Comment
  UC1199322  Solidago elongata Joseph P. Tracy 1935-9-1 14751 Humboldt mouth Larrabee Creek (on Eel River); Eel River, mouth of Larrabee Creek 60 Comment
  UC581770  Solidago elongata Joseph P. Tracy 1927-8-22 8346 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC365669  Solidago spathulata Doris K. Kildale 1928-8-10 6263 Humboldt Samoa Peninsula - Humboldt Bay Comment
  CHSC109579  Solidago spathulata B. Castro; L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site: on other side of South Spit Road from the Humboldt Bay mudflats. 2 Comment
  HSC49092  Solidago spathulata Patricia Shesgreen 1978-8-12 137 Humboldt Along Hwy. 255, 1/4 mi. S of Samoa Bridge, Samoa Comment
  POM179780  Solidago spathulata H. P. Chandler 1901-05 1203 Humboldt Humboldt Bay. 30 Comment
  RSA246920  Solidago spathulata R. F. Thorne, Percy C. Everett 1965-8-5 35164 Humboldt Samoa Dunes 3 Comment
  SEINET3896347  Solidago spathulata Thomas Nelson 1971-11-11 598 Humboldt At the foot of Murray Rd. McKinleyville.; 0 Comment
  UC1173677  Solidago spathulata Joseph P. Tracy 1939-8-18 16426 Humboldt on vacant lot on Clark St. (between C and D; 1/2 mi from bay); Eureka 15 Comment
  UC127601  Soliva sessilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mt. North-Western California, Hoopa Mt. Comment
  HSC104456  Sonchus oleraceus Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 25 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC12548  Sonchus oleraceus C. Kline 1970-11-15 77 Humboldt 4.2 mi. N of Trinidad, olf Hwy. 101 Comment
  HSC89465  Sonchus oleraceus P. A. Daly 1986-3-12 69 Humboldt Trinidad Head, along trail 61 Comment
  HSC102588  Sorbus scopulina M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1575 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  RSA85191  Sparganium angustifolium F. W. Peirson 1926-7-12 7042 Humboldt Humboldt County: Orick Comment
  JEPS397  Sparganium emersum var. emersum Joseph P. Tracy 1934-7-30 13507 Humboldt along coast in front of s end Stone Lagoon; Dry Lagoon 3 Comment
  JEPS83447  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt foot of I St. Arcata; Humboldt Bay, Arcata Comment
  OBI36628  Spartina densiflora David J. Keil 1983-7-2 17296 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  CAS-BOT-BC389921  Spergula arvensis Robert F. Thorne; P. Everett 1965-8-8 35265 Humboldt N edge of Eureka, E of Hwy. 101 4 Comment
  HSC83996  Spergula arvensis L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 221 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  UCD99184  Spergula arvensis Collector unknown 1925-6-7 1613 Humboldt Willow Camp. Comment
  CHSC14126  Spergula arvensis subsp. arvensis D. Joley 1967-8-16 49 Humboldt Found at a fish hatchery 4 mi n of Orick. Comment
  UC161005  Spergula arvensis subsp. arvensis Joseph P. Tracy 1909-6-6 2983 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC668080  Spergularia rubra Joseph P. Tracy 1936-6-3 14850 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA239688  Spiraea douglasii Larry E. DeBuhr 1973-4-23 996 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  RSA472779  Spiraea douglasii Charlotte M. Hoak 1931-7-14 s.n. Humboldt Alton. Comment
  UC1199028  Spiraea douglasii Joseph P. Tracy 1927-8-22 8350 Humboldt Bald Mountain Northern Coast Ranges (near High Prairie) 1066 Comment
  UC1196405  Spiranthes porrifolia Joseph P. Tracy 1942-6-15 17154 Humboldt Garberville 152 Comment
  UC1196402  Spiranthes romanzoffiana Doris Kildale Aug 1925 Humboldt Waterdog Lake Trinity Summit 1889 Comment
  CHSC42890  Stachys ajugoides var. rigida L. P. Janeway 1987-7-30 2536 Humboldt Along old hwy 101 just south of Dry Lagoon. Along the road. 60 Comment
  UC577327  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  UC538019  Stachys arvensis Lyle W. Smith 1934-11-14 Humboldt Arcata Comment
  HSC40957  Stachys chamissonis Linda M. Barker 1976-8-24 1683 Humboldt 3 mi. W of Arcata Comment
  HSC46038  Stachys mexicana Catherine Chin 1978-5-5 55 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  HSC14416  Stachys mexicana D. E. Anderson 1961-8-11 1727 Humboldt E of Humboldt State College campus. 30 Comment
  UCR84759  Stachys rigida var. quercetorum 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
  HSC58159  Stachys rigida var. rigida G. L. Clifton, Griswold 1979-8-2 12219 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC59653  Stellaria media Michael Dalke 1979-4-1 14 Humboldt 0.1 mi. E of Hwy. 101, N Bank Rd. 12 Comment
  UC183560  Stellaria nitens Joseph P. Tracy 1913-5-4 4045 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC668077  Stellaria obtusa Joseph P. Tracy 1935-7-23 14161 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  UC1197796  Stenanthium occidentale Joseph P. Tracy 1947-8-24 17901 Humboldt Box Camp; Trinity Summit 1463 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
  HSC102164  Stipa occidentalis var. californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1074 Humboldt Patterson Meadows 1566 Comment
  HSC44068  Streptanthus breweri Thomas W. Nelson, Jane P. Nelson 1977-7-1 3543 Humboldt Ridge N side of Bear Creek, 100 m W of FS Rd. 1S07 Comment
  CAS-BOT-BC87611  Streptanthus tortuosus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mount Trail. 1524 Comment
  UC1198800  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1932-5-17 10089 Humboldt river bar Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1541461  Streptanthus tortuosus var. orbiculatus W. K. Parks July, 1933 Humboldt Buck Mountain Comment
  CDA25184  Streptanthus tortuosus var. tortuosus Kaylea Eickhoff, Cara M. Witte 2005-6-8 4 Humboldt Northwestern California; 1.7 miles south of Highway 299 on Titlow Hill Road. Comment
  HSC57967  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-31 11685 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC100891  Streptopus amplexifolius Carl C. Marshall May 1886 191 Humboldt Jacoby Cr. Comment
  RSA249439  Streptopus amplexifolius D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5606 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  CAS-BOT-BC269566  Symphoricarpos albus var. laevigatus E. A. McGregor 1921-8-2 s.n. Humboldt Requa and vicinity. 6 miles E. up Klamath River on Terwah Road 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-BC99169  Symphyotrichum chilense L. R. Abrams 1927-8-31 12054 Humboldt Marshes along highway between Eureka and Arcata Comment
  UC153938  Symphyotrichum subspicatum Joseph P. Tracy 1910-10-8 3170 Humboldt Brainard's Point Northern Coast Ranges, Humboldt Bay 0 Comment
  HSC89602  Synthyris reniformis M. Roantree 1985-4-28 17 Humboldt W side of Trinidad Head on an outcropping W of the trail Comment
  HSC1030  Tanacetum bipinnatum J. Wendell Howe 1933-5-23 Humboldt Samoa Comment
  RSA28303  Tanacetum camphoratum E. K. Balls, Percy C. Everett 1953-10-11 18636 Humboldt Big Lagoon on South Shore. 2 Comment
  HSC59852  Tauschia kelloggii M. A. Baker 1979-7-6 1007 Humboldt Just past the 4 mi. marker on Eyesee Rd. from Hwy. 96 Comment
  JEPS14164  Tauschia kelloggii Lincoln Constance 1934-6-2 779 Humboldt Bull Cr road to mouth of Bull Creek (and up Bull Cr.); South Fork Eel River, Bull Creek Region Comment
  NY17379  Taxus brevifolia J. P. Tracy 1927-3-27 7865 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SBBG319  Taxus brevifolia H. and M. Dearing 1939-6-23 3691 Humboldt E fork of Willow Crk 609 Comment
  SDSU2035  Taxus brevifolia D. F. Howe 1964-8-7 4128 Humboldt 8.2 miles from #96 on Mill Creek Road, Hoopa Valley. 1067 Comment
  HSC32947  Tellima grandiflora Thomas W. Nelson, James Nelson 1973-5-28 960 Humboldt McKeown Ranch N of Dinsmore Comment
  CAS-BOT-BC399767  Thalictrum polycarpum Alice Eastwood 1921-7-21 10669 Humboldt Vanduzen [Van Duzen] River, on the road Comment
  RSA167423  Thalictrum polycarpum Joseph P. Tracy 1950-7-25 18879 Humboldt Humboldt County: Burr Valley, NW slope of Buck Mtn, alt 3500ft 1067 Comment
  CAS-BOT-BC77707  Thelypteris nevadensis L. R. Abrams 1916-7-22 6220 Humboldt Ridge between Mad + Trinity Rivs on Eureka - Red Bluff Road Comment
  UC1239774  Thelypteris nevadensis Joseph P. Tracy 1935-7-22 14124 Humboldt near Forks of Tish Tang-a Tang Creek Trinity Summit 1219 Comment
  CAS-BOT-BC81319  Thuja plicata Milo S. Baker 1927-8-21 2471 a Humboldt Cold Bog, in vicinity of Bald Mt. 914 Comment
  HSC31501  Thuja plicata Steve Selva, Roger Jensen 1974-8-27 86 Humboldt Along Hwy. 299 4.5 mi. E of Blue Lake Comment
  POM212074  Thuja plicata C. B. Wolf 1930-10-25 1764 Humboldt 9 miles above Blue Lake road to Willow Creek (Lord Ellis Road) 244 Comment
  UC275508  Thuja plicata Joseph P. Tracy 1923-6-24 6365 Humboldt Bald Mountain North Coast Ranges, Bald Mountain (in cold wet meadow near high prairie) 1066 Comment
  UCD67632  Thuja plicata D. Sanchez-Mata 1996-6-27 s.n. Humboldt Blue Lake. Mad River. Redwood forests on slopes. 175 Comment
  HSC100464  Thysanocarpus curvipes Carl C. Marshall Apr 1887 370 Humboldt Hoopa Valley. Comment
  HSC22843  Thysanocarpus curvipes D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5060 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC97624  Thysanocarpus curvipes Cara Witte 2007-6-4 194 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC43174  Tiarella trifoliata var. unifoliata R. Sutherland 1976-8-13 13 .13876 Humboldt Whittemore Grove. 91 Comment
  UC154107  Tolmiea diplomenziesii Joseph P. Tracy 1908-6 2876 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  CAS-BOT-BC447610  Tolmiea menziesii Harley P. Chandler 1901-5-1 1268 Humboldt Redwood Belt 457 Comment
  RSA80427  Tonella tenella Margaret Stason 1938-4-14 12410 Humboldt Few miles east of Arcata on Weaverville Road. Comment
  UCR3543  Torilis arvensis David Whistler, H. M. Whistler 1964-7-29 640729- 3 Humboldt North Coast Range, US 101, [South Fork Eel River] across the street from Myers Flat Store 63 Comment
  RSA12424  Torreyochloa pallida var. pauciflora C. B. Wolf 1934-7-2 5870 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  CAS-BOT-BC169179  Toxicodendron diversilobum John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC169180  Toxicodendron diversilobum Doris K. Kildale 1926-9-9 2676 Humboldt Van Duzen River between Sting's Station & Bridgeville, Bar W Ranch 158 Comment
  UCD116958  Toxicodendron diversilobum Linda M. Barker 1976-9-3 1697 Humboldt 3 miles west of Arcata. Comment
  UC668060  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1937-7-2 15387 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  BLMAR617  Trifolium albopurpureum Jennifer Wheeler 2011-5-20 617 Humboldt King range, Below Strawberry Rock in Mattole Dunes 7 Comment
  UC1197235  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1921-6-12 5820 Humboldt Kneeland Prairoe Northern Coast Ranges 762 Comment
  UC160914  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1908-6-9 2652 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  UC495672  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1929-5-5 8566 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1197241  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1914-6-14 4500 Humboldt near Hydsdale (mouth of Yager Crekk); Northern Coast Ranges 60 Comment
  HSC99711  Trifolium angustifolium Glenn W. K. Shelton 2010-7-7 10 Humboldt 2.3 mi. S of Kneeland Rd./Mtn. View Rd. intersection, 1 mi. W of Kneeland Airport, along Kneeland Rd., turnout access to powerline corridor 524 Comment
  SDSU5270  Trifolium arvense D. F. Howe 1979-6-25 5195 Humboldt #299, one milesouth of Willow Creek. Comment
  UC162829  Trifolium barbigerum J. P. Tracy 1909-5-2 2964 Humboldt immediate vicinity Eureka 0 Comment
  UC1223496  Trifolium bifidum var. bifidum Joseph P. Tracy 1935-5-25 13903 Humboldt betw forks of creek; Dobbyn Creek Comment
  UC1223502  Trifolium bifidum var. decipiens Joseph P. Tracy 1939-4-29 16256 Humboldt 2 mi below Orleans (nw side); Klamath River 121 Comment
  UC1197050  Trifolium campestre Joseph P. Tracy 1905-7-1 2203 Humboldt immediate vicinity Eureka 0 Comment
  SEINET12157150  Trifolium depauperatum J. P. Tracy 1933-1 12242 Humboldt Petrolia, Mattole Valley Comment
  JEPS79998  Trifolium dubium Joseph P. Tracy 1925-5-17 6971 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA43868  Trifolium dubium H. M. Pollard 1948-7-18 s.n. Humboldt Banks of Klamath River, Orleans. Comment
  RSA91498  Trifolium dubium F. W. Peirson 1923-7-11 3622 Humboldt 20 miles north of Eureka Comment
  HSC40039  Trifolium eriocephalum Thomas W. Nelson, James Nelson 1976-7-1 2890 Humboldt Ridge N of Bear Creek 1494 Comment
  UC302111  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1926-7-5 7729 B Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  HSC15123  Trifolium fucatum R. A. Rasp 1964-5-17 38 Humboldt 1 mi. S of Arcata beside Hwy. 101 Comment
  HSC43108  Trifolium fucatum Maralyn O'Meara 1974-5-14 360 Humboldt Along Hwy. 36, 7.1 mi. E of Bridgeville 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
  RSA168897  Trifolium fucatum var. fucatum Joseph P. Tracy 1938-6-17 15950 Humboldt Cape Mendocino, near ocean shore, south of point of the Cape. Comment
  HSC100251  Trifolium incarnatum J. P. Smith, & J. O. Sawyer 2010-5-2 12808 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  SEINET7097947  Trifolium macrocephalum A. G. Vestal 1937-1 s.n. Humboldt Ca. 14 miles south of Garberville on Route 101. UTM Zone 10, 433343 mE, 4422303 mN. Lat. 39 57' 00ao N, Long. 123 46' 49ao W NAD 27 (Converted to WGS84 decimal degrees) Comment
  JEPS65974  Trifolium microcephalum Lincoln Constance 1934-5-26 670 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region Comment
  UC160907  Trifolium microcephalum J. P. Tracy 1900-5-28 821 Humboldt immediate vicinity Eureka 0 Comment
  UC1197540  Trifolium microcephalum Joseph P. Tracy 1911-7-10 3495 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC16639  Trifolium microcephalum J. Burtt Davy 1899-4-15 5528 Humboldt Eel River bottom North Coast Ranges, Scotia Comment
  HSC45133  Trifolium variegatum R. Sutherland 1978-4-23 22 .23478 Humboldt 732 Comment
  UC303199  Trifolium willdenovii Joseph P. Tracy 1925-5-17 6967 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1541579  Trifolium wormskioldii Harold E. Parks May 1934 4329 Humboldt Spruce Cove Trinidad Comment
  UC631060  Trifolium wormskioldii Joseph P. Tracy 1911-6-25 3246 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC1223372  Trifolium wormskioldii Joseph P. Tracy 1950-6-18 18767 Humboldt w Petrolia (hills betw town and ocean) Comment
  HSC14174  Triglochin maritima W. R. Brigham 1962-5-19 11 Humboldt S of Big Lagoon. Comment
  CAS-BOT-BC451802  Triglochin maritima Ira L. Wiggins 1932-6-18 5868 Humboldt At mouth of Little River Comment
  HSC82964  Triglochin maritima A. L. Eicher 1986-5-10 Humboldt Bordering Humboldt Bay, 0.3 mi. S of the jct. of Samoa Blvd. and Vance Ave. 1 Comment
  SEINET10745910  Triglochin striata J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13019 Humboldt North of McKinleyville off U.S. 101 (a few kilometers north of Eureka), Clam Beach County Park. Comment
  HSC15683  Trillium albidum D. E. Anderson 1965-5-1 3567 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC902042  Trillium angustipetalum Joseph P. Tracy 1949-6-25 18350 Humboldt near Box Camp Trinity Summit 1524 Comment
  SBBG58763  Trillium ovatum R. Hartwell 1938-8-4 104 Humboldt Bull Crk Flat Grove, near Eel River Comment
  HSC24053  Trillium ovatum subsp. oettingeri J. O. Sawyer 1971-6-16 2387 Humboldt Lipps Camp 1433 Comment
  RSA135459  Triodanis biflora Volney Rattan 1883-6-30 s.n. Humboldt Redwood Creek. Comment
  HSC47606  Triphysaria eriantha J. P. Smith 1977-4-23 9031 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC20849  Triphysaria eriantha subsp. eriantha B. Francis 1964-5-19 45 Humboldt 0.5 mi. S of Fairhaven Comment
  JEPS26158  Triphysaria eriantha subsp. eriantha Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3633 Humboldt Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  UC702568  Triphysaria pusilla C. C. and S. K. Harris 1942-6-18 1283 Humboldt 1 mi n and 3 mi w Chalk Mountain; n and w of Chalk Mountain 665 Comment
  UC677722  Triphysaria versicolor subsp. versicolor S. K. Harris 1936-6-7 683 Humboldt Eureka 3 Comment
  RSA44544  Trisetum canescens Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans, Humboldt County Comment
  UCD93602  Trisetum canescens P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  UC1714630  Trisetum cernuum Joseph P. Tracy 1926-6-13 7599 Humboldt near Blue Lake (Liscom Hill Road); North Coast Ranges 152 Comment
  SEINET200769  Triteleia bridgesii Joseph P. Tracy 1949-6-25 18345 Humboldt Trinity Summit Mud Springs in serpentine area 1341 Comment
  JEPS5665  Triteleia bridgesii W. L. Jepson Jul 16 1902-Jul 23 1902 2006 Humboldt Hupa to Mud Spring; Trinity Summit 1219 Comment
  UC666900  Triteleia bridgesii Joseph P. Tracy 1929-7-4 8616 Humboldt French Camp 1066 Comment
  CAS-BOT-BC519142  Triteleia hyacinthina H. C. Cantelow 1939-6-4 3917 Humboldt Road to Bridgeville 4 1/2 miles west of Alder Point Comment
  HSC68611  Triteleia laxa Jacqueline Greenleaf 1980-7-16 240 Humboldt Near Buck Mountain. 1250 Comment
  RSA254788  Triteleia laxa Thomas W. Nelson, James Nelson 1973-5-28 952 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC13439  Triticum aestivum L. M. Malloy 1965-5-20 30 Humboldt Old county dump, 5 mi. from Arcata on Fickle Hill Rd. Comment
  CAS-BOT-BC85893  Tsuga heterophylla Joseph P. Tracy 1940-8-25 16704 Humboldt Bald Mountain 914 Comment
  UCSB26310  Tsuga heterophylla Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  CAS-BOT-BC73930  Turritis glabra Alice Eastwood; John Thomas Howell 1937-6-23 4804 Humboldt Little Van Duzen River. Comment
  CAS-BOT-BC73933  Turritis glabra Doris K. Kildale 1927-7-17 3761 Humboldt Big Creek. 792 Comment
  HSC14485  Umbellularia californica W. R. Rogers 1965-5-6 293 Humboldt 3 mi. E of Arcata, Hwy. 299 Comment
  HSC46102  Umbellularia californica J. P. Smith, J. O. Sawyer 1975-4-6 8058 Humboldt N of Briceland on rd. to Hwy. 101 Comment
  HSC59133  Urtica dioica subsp. gracilis Terry Roth 1979-5-20 65 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  HSC69782  Urtica dioica subsp. gracilis R. Kalal 1979-5-20 62 Humboldt Logging road E of HSU campus, along Jolly Giant Creek. 61 Comment
  POM160273  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt Around Humboldt Bay. Elk River Valley. 30 Comment
  UC672856  Urtica dioica subsp. holosericea Joseph P. Tracy 1937-7-19 15448 Humboldt Blue Slide on Van Duzen River Blue Slide; Van Duzen River, Blue Slide 91 Comment
  UC30064  Vaccaria hispanica Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  CAS-BOT-BC193960  Vaccinium cespitosum Doris K. Kildale 1928-6-24 5302 Humboldt Foot of 3rd Street near Eureka Slough, Eureka Comment
  CAS-BOT-BC193964  Vaccinium cespitosum Harley P. Chandler 1901-5-1 1181 Humboldt Humboldt Bay 30 Comment
  CHSC19510  Vaccinium ovatum P. F. Yull 1966-3-24 112 Humboldt South of Manila School. 120 yards from ocean. Comment
  HSC95645  Vaccinium ovatum Andrea Pickart 2002-4-5 41 Humboldt Lanphere Dunes 15 Comment
  JEPS25685  Vaccinium ovatum P. C. Hutchison 1961-5-22 2006 Humboldt 14.3 mi e Arcata junction with U.S. Highway 101 (on U.S. Highway 299) Comment
  POM285977  Vaccinium ovatum Lyman Benson 1927-7-11 56 Humboldt Weott Ranger Station. 107 Comment
  RSA66951  Vaccinium ovatum E. K. Balls 1951-5-4 16421 Humboldt Nelson Grove to Robinson Grove, Hwy 101, 20 mi. north of Garberville. Comment
  UC154183  Vaccinium ovatum Mrs. M. H. Manning May 1902 Humboldt near Hupa Comment
  CDA38877  Vaccinium ovatum Gordon Leppig 1998-6-26 854 Humboldt McKinleyville, Rte 101 at Mad River Overlook. Comment
  CAS-BOT-BC199407  Vaccinium parvifolium Alice Eastwood 1907-4-22 s.n. Humboldt Unspecified Comment
  UC602499  Valeriana californica Joseph P. Tracy 1935-7-30 14381 Humboldt Salmon Summit 2103 Comment
  SEINET12335251  Valeriana sitchensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -313 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  RSA30602  Valeriana sitchensis subsp. scouleri Lincoln Constance, R. C. Rollins 1942-5-11 2867 Humboldt 3 miles W of East Fork of Willow Creek. Comment
  HSC28044  Vancouveria hexandra Chris Gist 1971-6-19 6 Humboldt Jolly Giant Canyon, HSU, Arcata Comment
  HSC33018  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1973-7-5 98 Humboldt 1 mi. W of Tish a Tang Creek on Grogan Hill Rd., E of Hoopa 1524 Comment
  RSA183508  Vancouveria hexandra S. S. Stutz 1963-5-18 56 Humboldt Seven miles SE of Arcata on Fickle Hill Road. Comment
  CAS-BOT-BC76088  Vancouveria planipetala Greg de Nevers 2001-4-17 12245 Humboldt Humboldt Redwoods State Park. 91 Comment
  HSC76279  Vancouveria planipetala Teresa Prendusi 1981-7-7 123 Humboldt Near Slate Creek Butte. 1158 Comment
  HSC99653  Vancouveria planipetala Jimerson, J. Pageau 1979-6-13 544 Humboldt Near Onion Lake, close to the town of Orleans 549 Comment
  SEINET10932381  Vancouveria planipetala Mary Merello 1993-6-19 Merello 658 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  RSA438032  Vancouveria planipetala Miss Hutchinson 1927-7-1 s.n. Humboldt [Unspecified] Comment
  RSA505336  Vancouveria planipetala Barbara Ertter, Thomas J. Delendick 1987-5-16 6941 Humboldt 3 miles E of Berry Summit on Hwy 299, 20 airmiles E of Arcata, near large volcanic rock on S side of road above Willow Creek 800 Comment
  UC168982  Verbascum blattaria Harley P. Chandler 1901-6-10 1422 Humboldt Klamath River Nature's Rest; North Coast Ranges, , Nature's Rest 304 Comment
  HSC21737  Verbena lasiostachys D. E. Anderson 1963-10-6 2880 Humboldt Mad River bed, across from Essex Junction. Comment
  HSC55608  Veronica americana Walter Overton, Marvin Butler 1979-7-23 9490 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  UC176046  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1913-6-14 4136 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC78977  Veronica peregrina subsp. xalapensis L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 720 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  HSC21217  Veronica persica D. K. Smith 1968-1-16 1 Humboldt 0.5 mi. S of Blue Lake on West End Rd. Comment
  SEINET3825239 Image available Veronica scutellata Malcolm A. Nobs, S. Galen Smith 1949-8-3 1190 Humboldt Southern outskirts of Eureka Comment
  HSC96944  Veronica serpyllifolia subsp. humifusa Ryoko Ito, Shauna McDonald 2007-6-13 7 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  POM283765  Veronica serpyllifolia var. humifusa Lyman D. Benson 1928-7-12 478 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  UC1197462  Vicia americana var. americana Joseph P. Tracy 1933-6-24 12613 Humboldt Big Lagoon 91 Comment
  UC1197480  Vicia americana var. americana Joseph P. Tracy 1935-7-27 14308 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  UC709405  Vicia americana var. americana Joseph P. Tracy 1935-5-26 13908 Humboldt Iaqua 609 Comment
  POM68420  Vicia gigantea Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA170257  Vicia hirsuta Joseph P. Tracy 1916-5-31 4689 Humboldt Stitz Creek. Along Eel River South Fork to Scotia. 61 Comment
  UCD108987  Vicia sativa subsp. nigra W. A. Williams 1951-6-1 s.n. Humboldt location unknown. Comment
  UCR40074  Vicia tetrasperma L. P. Janeway, Paul Wilson 1984-5-25 828 Humboldt North Spit of Humboldt Bay; BML [sic - BLM?] lands near the Coast Guard Station. 5 Comment
  HSC3233  Vinca major S. R. Johnson 1965-3-23 16 Humboldt 1 mi. N of Luffenholtz Beach Comment
  CAS-BOT-BC263951  Viola adunca L. B. Kildale 1926-3-26 1656 Humboldt Dillon Road between Beatrice and Field's Landing Comment
  HSC31450  Viola adunca D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5568 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC41233  Viola cuneata Brad Klipfel 1974-5-8 323 Humboldt Horse Mtn. Comment
  HSC21776  Viola cuneata D. E. Anderson 1965-6-1 3755 Humboldt Horse Mtn.; N-facing slope near ski lodge 1433 Comment
  HSC21790  Viola glabella Lincoln Constance 1934-5-26 652 Humboldt Bull Creek Region; N Dyerville Flat grove near Founder's Tree 49 Comment
  HSC44358  Viola glabella Brad Klipfel 1974-5-27 398 Humboldt Horse Mtn. Comment
  HSC71790  Viola glabella Gail Newton 1980-6-16 178 Humboldt Near Monks Camp. 1097 Comment
  UC502964  Viola glabella Joseph P. Tracy 1927-6-12 8153 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1219 Comment
  HSC21802  Viola glabella D. E. Anderson 1964-2-23 2902 Humboldt 6 mi. E of Carlotta along Hwy. 36; along Van Duzen River Comment
  HSC48637  Viola glabella Mark Flippo 1978-5-21 81 Humboldt USFS Rd. 8N20 Comment
  UC1198458  Viola glabella Joseph P. Tracy 1913-6-20 4222 Humboldt in valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC1762505  Viola glabella Milo S. Baker 1947-8-10 11905 Humboldt along trail towards Trinity Summit from end of forest rd. from Hoopa 1432 Comment
  HSC96958  Viola hallii Ryoko Ito, Shauna McDonald 2007-6-4 2 Humboldt Coldspring Camp, 7.4 mi. above Hwy. 299; off FS road NF1, on FS road 5N27 1433 Comment
  HSC97518  Viola ocellata Frances Reuss Harmon 2001-3-31 14 Humboldt Six Rivers National Forest: Gray Falls Picnic Area, along dirt road heading due S ca. 150 ft past the picnic area loop Comment
  UC1537666  Viola ocellata Gordon H. True Jr. 1936-5-11 460 Humboldt 12 mi w of Miranda (e slope of Elk Ridge); Elk Ridge 457 Comment
  UC249588  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek; Northern Coast Ranges, South Yager Creek Comment
  RSA249436  Viola purpurea subsp. integrifolia D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5591 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC67177  Viola purpurea subsp. purpurea Thomas W. Nelson, James Nelson 1980-6-10 5428 Humboldt Along NE side of Red Mtn. 1433 Comment
  HSC73542  Viola purpurea subsp. purpurea Gail Newton 1980-7-14 1478 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC98758  Viola purpurea subsp. purpurea Cara Witte 2008-7-2 818 Humboldt Board Camp Mountain/ Tri Board Camp. Forest Service Road 4N38. 1577 Comment
  UC35300  Viola sempervirens Chesnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  UC66211  Viola sempervirens Harley P. Chandler June, 1901 1292 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  HSC95748  Viola sempervirens Kevin Thomas 2004-3-13 2 Humboldt Arcata Community Forest, Jolly Giant Creek diversion dam Comment
  HSC70239  Viola sheltonii M. A. Baker 1980-6-8 1903 Humboldt Near Buck Flat. 1554 Comment
  HSC9837  Vulpia bromoides J. W. Johnson 1962-5-9 1347 Humboldt Christenson Farm, Samoa Peninsula. Comment
  UCD93441  Vulpia bromoides Linda M. Barker 1976-4-30 1398 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET7297974 Image available Vulpia bromoides Joseph P. Tracy 1948-1 18065 Humboldt Trinidad 3 Comment
  HSC45027  Vulpia myuros R. Sutherland 1978-5-13 4 .13578 Humboldt Mattole River. 282 Comment
  HSC9929  Vulpia myuros C. R. Ball, J. P. Tracy, H. E. Parks 1932-5-17 1344 Humboldt Trinity River, near bridge on Trinity Highway 152 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
  CAS-BOT-BC382921  Wyethia angustifolia L. R. Abrams 1918-6-15 7125 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC71670  Wyethia angustifolia M. A. Baker 1980-6-26 2382 Humboldt Near Sims Creek 610 Comment
  HSC73473  Wyethia angustifolia Gail Newton 1980-7-11 1316 Humboldt Near Red Mtn. 1341 Comment
  JEPS32068  Wyethia angustifolia Joseph P. Tracy 1933-8-6 12937 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC382927  Wyethia angustifolia D. E. Breedlove 1961-7-4 654 Humboldt On U.S. Highway 299, 13.7 miles west of Willow Creek 731 Comment
  UC1541467  Wyethia longicaulis H. E. and S. T. Parks May 1930 740 Humboldt Laribee Valley Comment
  CAS-BOT-BC382123  Xanthium strumarium Doris K. Kildale 1926-8-8 2467 Humboldt mouth of Bull Creek Comment
  CAS-BOT-BC527079  Xerophyllum tenax Doris K. Kildale; L. B. Kildale 1930-5-11 9530 Humboldt Wire Grass Prairie, Bald Hills 792 Comment
  CAS-BOT-BC527080  Xerophyllum tenax Doris K. Kildale 1931-5-10 10683 Humboldt Snow Camp Comment
  HSC56958  Zigadenus micranthus Overton, Butler 1979-7-23 9472 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC73063  Zigadenus micranthus M. A. Baker 1980-6-16 1959 Humboldt Near Onion Mtn. 1280 Comment
  CDA866  Zostera japonica Gordon Leppig 2002-7-8 1782 Humboldt Indian Island, SW shore, mid-intertidal zone, +1.2 MLW. 0 Comment



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