Search Results — 2000 specimen records retrieved (1354 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
  HSC71112  Abies concolor M. A. Baker 1980-5-23 1386 Humboldt Near Buck Mtn. 1524 Comment
  SEINET200991  Abies concolor Joseph P. Tracy 1927-6-12 8144 Humboldt Horse Mountain 1524 Comment
  HSC76304  Abies magnifica Teresa Prendusi 1981-7-24 480 Humboldt Near Whiteys Peak 1585 Comment
  HSC55022  Abies procera Overton, Butler 1979-7-31 11431 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC55523  Abronia latifolia P. E. Goddard 1901-8-6 180 Humboldt Regna Beach Comment
  UC1360497  Acaena novae-zelandiae D. W. Cooper 1966-10-10 Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Hwy. 101. Comment
  CAS-BOT-BC436986  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  CAS-BOT-BC330546  Acer circinatum Joseph P. Tracy 1909-6-13 2997 Humboldt Mad River near Blue Lake 30 Comment
  SEINET3026049  Acer circinatum John P. Young 1921-9-18 s.n. Humboldt Orick Comment
  HSC99409  Acer glabrum var. torreyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 58 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS42651  Acer macrophyllum W. L. Jepson 1932-7-30 16448 Humboldt near Big Tree; Bull Creek, near Big Tree 121 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
  CHSC10146  Achillea millefolium J. W. Johnson 1961-8-17 1061 Humboldt Arcata, California. W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC32009  Achillea millefolium J. D. Ackerman 1974-5-26 269 Humboldt 1 mi. S of Trinidad on Scenic Dr. Comment
  UCD128286  Achillea millefolium Linda M. Barker 1976-6-1 1541 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET11842960  Achillea millefolium F. H. Utech 1986-1 86 -397 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  RSA296791  Achillea millefolium var. arenicola J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC1196354  Achlys californica Joseph P. Tracy 1933-7-11 12692 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  HSC37361  Achlys triphylla Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 493 Humboldt Along Lost Man Creek. 38 Comment
  HSC3340  Achlys triphylla Lincoln Constance 1934-6-1 773 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  CAS-BOT-BC210651  Achnatherum lemmonii Joseph P. Tracy 1933-7-25 12849 Humboldt Grouse Mountain 1524 Comment
  UC1103142  Achnatherum lemmonii Joseph P. Tracy 1921-5-30 5486 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1145040  Achnatherum lemmonii Joseph P. Tracy 1950-6-15 18787 Humboldt 7 mi n Harris (Mail Ridge); Mail Ridge 1036 Comment
  UCD50670  Achnatherum lemmonii A. H. Murphy 1951-6-25 71 Humboldt 1 mile east of Snow Camp, ca. 8 miles e.n.e. of Kneeland. Humboldt County, California. Comment
  CAS-BOT-BC216454  Achnatherum occidentale subsp. californicum H. E. Parks; Joseph P. Tracy 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  UCD51130  Achnatherum occidentale subsp. californicum Don Hagar 1957-8-6 s.n. Humboldt Red Cap Prairie, west of Trinity Summit. 1828 Comment
  HSC102039  Aconitum columbianum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 942 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC502930  Aconitum columbianum Joseph P. Tracy 1932-7-10 10393 Humboldt Trinity Summit, Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC668267  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC412848  Aconogonon davisiae Thomas Nelson 1979-7-11 5022 Humboldt North Trinity Mountain and ridge to east. SE of Water Dog Lake 1828 Comment
  CHSC84729  Aconogonon phytolaccifolium L. P. Janeway 2003-7-26 7923 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  HSC58017  Adenocaulon bicolor G. L. Clifton 1979-7-31 11819 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC98889  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  UC203315  Adiantum aleuticum Joseph P. Tracy 1916-6-25 4742 Humboldt e Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  HSC100911  Aesculus californica Carl C. Marshall May 1884 64 Humboldt Bear River. Comment
  HSC57952  Ageratina occidentalis G. L. Clifton, Griswold 1979-7-31 11634 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  POM187915  Ageratina occidentalis Marcus E. Jones 1931-7-16 s.n. Humboldt Junction, East of Arcata. Comment
  UC1173668  Ageratina occidentalis Joseph P. Tracy 1939-8-5 16388 Humboldt along Van Duzen River, opposite Black Mt.; Van Duzen River 737 Comment
  HSC39937  Agoseris grandiflora Linda M. Barker 1976-7-5 1643 Humboldt 3 mi. W of Arcata. Comment
  UC1239513  Agoseris grandiflora var. grandiflora Mrs. C. M. Wilder 1936-7-1 Humboldt at Jack Kemp's place, sw slope Buck Mt. Buck Mt. 914 Comment
  HSC98511  Agoseris grandiflora var. leptophylla Cara Witte 2008-8-6 1008 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  UC1222932  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-8-7 18446 Humboldt Box Camp, in meadow Trinity Summit 1463 Comment
  UC1222929  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19227 Humboldt 1 mi n, road crosses sides of the Friday Ridge Friday's Camp; Grouse Mountain Comment
  UC165751  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1908-6 2735 Humboldt opposite, in valley of Van Duzen River Buck Mountain; Northern Coast Ranges, Van Duzen River 762 Comment
  SEINET200944  Agrostis Joseph P. Tracy 1927-7-17 8271 Humboldt Three cabins On lower western foothills of Chaparral Mountain. 457 Comment
  CHSC111332  Agrostis castellana Barbara L. Wilson; Nick Otting 2012-7-3 17134 Humboldt Dean Creek Resort between the Eel River and the Old Redwood Highway, west of Highway 101; UTM xone 10T, 430910 east, 443867 north. 76 Comment
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Nov 6 2015
  HSC8836  Agrostis densiflora D. C. Juve 1964-5-16 41 Humboldt Camp Tish-Tang, Campbell Creek Ranger Station, off Hwy 96 Comment
  UCD53125  Agrostis diegoensis Joseph P. Tracy 1950-8-8 19292 Humboldt Croghan Hole, on Trinity Summit. 1676 Comment
  RSA129586  Agrostis exarata H. S. Yates 1936-6-16 5664 Humboldt 1 mile S.W. of Samoa. Comment
  UC207702  Agrostis exarata Joseph P. Tracy 1917-6-24 4825 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River 60 Comment
  UC556417  Agrostis exarata Palmer Stockwell 1934-7-13 64 Humboldt Clam Beach Comment
  UCD52437  Agrostis exarata P. B. Kennedy 1923-8-5 s.n. Humboldt west forst of Eel River, between Phillipsville and Garberville. Comment
  UCSB51224  Agrostis exarata Almanza, Ed 1976-7-15 Humboldt Big Lagoon Campground, Big Lagoon Comment
  CHSC69848  Agrostis hallii Leonel Arguello 1989-8-20 Humboldt Collected at the Lanphere-Christensen Dunes Preserve 3 miles west of Arcata. Growing alongside North Dune Loop trail about 40 yards from the Salt Marsh trail. Comment
  HSC37235  Agrostis hallii Lon Hall 1975-6-19 400 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  SBBG53087  Agrostis longiligula R. N. Philbrick, J. R. Haller 1976-6-25 7 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  CAS-BOT-BC139123  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt Northern Coast Ranges. Bald Mountain. Near High Prairie. 1066 Comment
  RSA44452  Aira caryophyllea Henry M. Pollard 1948-7-18 s.n. Humboldt Orleans Comment
  UC1103297  Aira caryophyllea Joseph P. Tracy 1923-6-24 6359 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC138333  Aira caryophyllea var. caryophyllea Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  HSC33761  Aira praecox Ron Ralston 1975-5-24 81 Humboldt Samoa Dunes off Samoa Blvd., across from boat landing Comment
  CAS-BOT-BC462970  Allium bolanderi Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 914 Comment
  UC1198193  Allium bolanderi var. mirabile Joseph P. Tracy 1913-6-23 4278 Humboldt near summit on ridge between Van Duzen River and Mad River; Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  HSC103075  Allium campanulatum Sydney Carothers 2014-6-11 15 Humboldt Six Rivers Nat'l Forest, Lassics Botanical Area, upper north face of Mt. Lassic 1777 Comment
  CAS-BOT-BC464486  Allium campanulatum Doris K. Kildale 1927-7-22 3815 Humboldt Lassecks Peaks 1661 Comment
  HSC103255  Allium campanulatum John McRae 2014-6-3 Humboldt Six Rivers National Forest, Black Lassic Quad, Mt. Lassic , Lassics Botanical and Geological Area. 1768 Comment
  RSA249434  Allium falcifolium D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5600 Humboldt Mt. Lassic and 2 smaller peaks to immediate E. 1768 Comment
  HSC39553  Allium hoffmanii Thomas W. Nelson 1976-6-14 2706 Humboldt S of Lassic Peak 1524 Comment
  HSC66828  Allium hoffmanii M. A. Baker 1980-7-11 2791 Humboldt Near Red Mtn. 1341 Comment
  UC1196540  Allium triquetrum H. E. Peacock 1942-4-6 Humboldt Ferndale 15 Comment
  UC666922  Allium unifolium Joseph P. Tracy 1935-6-8 13953 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 15 Comment
  SDSU11522  Allium unifolium unknown, Santa Ana Botanic Gaden 1940-5-20 Humboldt Coast Ranges Monterey Comment
  HSC78649  Allium validum D. K. Imper 1982-7-23 1480 Humboldt Near Onion Lake. 1371 Comment
  CAS-BOT-BC453428  Allotropa virgata Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek, near Orleans Comment
  HSC48726  Allotropa virgata M. A. Baker 1979-6-6 774 Humboldt Middle of W half of section 2. 610 Comment
  CAS-BOT-BC171311  Alnus incana subsp. tenuifolia Milo S. Baker 1927-8-21 2487 a Humboldt Brush Mt. 914 Comment
  HSC58328  Alnus incana subsp. tenuifolia Overton, Butler 1979-8-2 12626 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC169542  Alnus rubra Carl B. Wolf 1930-10-26 1767 Humboldt SO edge of Bog Lagoon, near Redwood Highway Bridge 9 Comment
  HSC65138  Alnus rubra J. P. Smith 1971-10-9 4986 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC96512  Alnus rubra Gordon Leppig 1999-7-9 1179 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  RSA778733  Alnus rubra Lyman Benson 1929-7-19 1878 Humboldt Mouth of Matole [Mattole] River. Comment
  UC54760  Alnus viridis subsp. sinuata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5778 Humboldt Trinity Summit North Coast Ranges (Mendocino, Humboldt, and Del Norte Counties) Comment
  HSC8898  Alopecurus geniculatus W. F. Cartwright 1965-5-20 77 Humboldt 5 mi. S of Arcata on Old Arcata Rd. Comment
  SEINET6820704 Image available Alopecurus geniculatus A. A. Beetle, Stebbins; Tracy 1942-6-2 3458 Humboldt Loleta Swamp, S of Eureka Comment
  HSC8896  Alopecurus pratensis W. F. Cartwright 1965-5-20 78 Humboldt 5 mi. S of Arcata on Old Arcata Rd. Comment
  UC573793  Alopecurus pratensis H. L. Person 1932-5-11 Humboldt Redwood Hwy. between Arcata and Eureka; Eureka Quad. 0 Comment
  RSA152369  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Local in wet field. Alton. 30 Comment
  CHSC56516  Ambrosia chamissonis L. P. Janeway 1983-9-24 704 Humboldt Sand-spit at Big Lagoon. 3 Comment
  CAS-BOT-BC13707  Ambrosia chamissonis A. A. Heller 1924-7-21 13869 Humboldt Salt marsh at Eureka Comment
  HSC35866  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2128 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  CAS-BOT-BC143016  Amelanchier utahensis Doris K. Kildale 1928-4-29 5959 Humboldt Redwood Creek at Berry's Comment
  CAS-BOT-BC143018  Amelanchier utahensis Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  RSA0090987  Amsinckia intermedia H. E. Parks 1933-03 4282 Humboldt Trinidad. Comment
  HSC28135  Anagallis arvensis J. D. Ackerman 1973-5-6 47 Humboldt Redcrest Comment
  HSC89440  Anagallis arvensis P. A. Daly 1984-7-16 29 Humboldt Trinidad Head 61 Comment
  UCD117538  Anagallis arvensis Malcolm A. Nobs; S. Galen Smith 1949-8-11 1342 Humboldt eastern shore of Stone Lagoon. Comment
  UC1199417  Anaphalis margaritacea Joseph P. Tracy 1937-7-29 15578 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC90394  Anaphalis margaritacea Jean Hanson 1980-8-28 117 Humboldt Indian (Gunther) Island, in Humboldt Bay, Eureka; Across from the Coast Guard Station beginning ca. 75 ft. from the high tide line Comment
  CAS-BOT-BC391786  Anemone deltoidea Mrs. H. C. Cantelow 1936-5-17 s.n. Humboldt 4 1/2 miles east of Orick Comment
  HSC44555  Anemone deltoidea Brad Klipfel 1973-7-15 174 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196197  Anemone deltoidea Joseph P. Tracy 1935-7-28 14309 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  JEPS60507  Anemone deltoidea W. L. Jepson 1902-6-22 1913 Humboldt Pepperwood Comment
  UC1196194  Anemone deltoidea Joseph P. Tracy 1933-7-11 12711 Humboldt Grouse Mtn; North Coast Ranges; Grouse Mtn 1524 Comment
  HSC74357  Anemone oregana var. oregana Gail Newton 1980-6-17 222 Humboldt Near Onion Mtn. 1341 Comment
  UC673052  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka, near south city limits Eureka 6 Comment
  HSC21447  Angelica hendersonii C. B. Wolf 1927-8-29 1216 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  RSA21584  Angelica hendersonii C. B. Wolf 1937-9-9 9304 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  UC642239  Angelica tomentosa Joseph P. Tracy 1938-8-14 16107 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  CAS-BOT-BC94796  Anisocarpus madioides R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 835 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air mi. N of Mattole Road & 3 air mi. W of Hwy 101. 243 Comment
  HSC49963  Anisocarpus madioides Maralyn O'Meara 1974-7-11 541 Humboldt Kneeland; Barry Ridge Comment
  UC169316  Anisocarpus madioides Joseph P. Tracy 1908-6 2878 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  POM247535  Antennaria media Joseph P. Tracy 1935-7-24 14202 Humboldt Trinity Summit, near ranger station Comment
  HSC41291  Antennaria suffrutescens Brad Klipfel 1974-7-27 489 Humboldt Horse Mtn. Comment
  HSC56940  Antennaria suffrutescens Overton, Butler 1979-7-23 9419 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC1222873  Anthemis cotula Joseph P. Tracy 1946-8-25 17643 Humboldt Van Duzen River (mouth) Eel River, Van Duzen River Comment
  HSC10100  Anthoxanthum occidentale T. L. Ackerman 1964-4-24 31 Humboldt 1 mi. up logging road N of elementary school near Freshwater Corners Comment
  HSC8949  Anthoxanthum odoratum R. T. Forester 1963-4-30 52 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC8953  Anthoxanthum odoratum D. E. Anderson 1962-3-31 1957 Humboldt Coastal area of Prairie Creek State Park, back of sand dunes Comment
  UC1159497  Anthoxanthum odoratum D. L. Gray 1964-5-14 ARCA 64001 Humboldt Humboldt County 18 Comment
  UCD56238  Anthoxanthum odoratum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1208 Humboldt ca. 2 miles north of Eureka, Humboldt Bay. Comment
  HSC8941  Anthoxanthum odoratum Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  HSC104450  Anthriscus caucalis Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 3 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC94102  Anthriscus caucalis Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay 1 Comment
  UC1196739  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1946-11-17 17665 Humboldt Eel River at mouth of Van Duzen River; Eel River 18 Comment
  JEPS45613  Aphanes occidentalis W. L. Jepson 1921-8-7 9337 a Humboldt Stone Lagoon; Humboldt Coast Comment
  HSC70343  Apocynum androsaemifolium M. A. Baker 1980-6-7 1850 Humboldt Near Ammon Creek 732 Comment
  HSC98059  Apocynum androsaemifolium Cara Witte 2007-7-11 498 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  SEINET12104677  Aquilegia formosa E. A. York 1990-1-10 2663 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC18037  Aquilegia formosa var. formosa F. B. Plett 1963-5-11 45 Humboldt 1.5 mi. N of Trinidad on old Hwy. 101 Comment
  UC162637  Arabis glabra Harley P. Chandler Jun 1901 1337 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC100716  Arabis holboellii Carl C. Marshall Jun 1886 309 Humboldt Trinity Summit. Comment
  RSA96051  Aralia californica E. K. Balls 1954-8-5 19754 Humboldt Grown in Botanic Garden, Prop. No. 5123, origin of material being plants coll. by C. B. Wolf, March 2, 1941, North Coast Range, Bull Creek to Petrolia Rd., 12 mi. w. of Redwood Hwy Comment
  UCD128220  Aralia californica B. L. Kay 1954-8-26 s.n. Humboldt 5 miles west of Gaberville. Comment
  CAS-BOT-BC128693  Arbutus menziesii Carl D. Duncan 1920-9-22 313 Humboldt Common in the vicinity of Hoopa Comment
  CHSC107101  Arbutus menziesii M. Mitchell 2010-4-9 4 Humboldt Willow Creek @ Highway 299 East. 207 Comment
  HSC30336  Arbutus menziesii Dale R. Gradek 1974-5-22 92 Humboldt 1 mi. E of Hwy. 101 on North Bank Rd. 30 Comment
  RSA183602  Arbutus menziesii Norman Dennis 1965-5-8 59 Humboldt 6 miles east of Blue Lake on Highway 299. Comment
  UC1196880  Arbutus menziesii F. C. Gregory 1919-10-10 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  SEINET11972424  Arbutus menziesii J. P. Tracy 1951-1 19401 Humboldt near Ashfield Ridge, Kneeland Prairie 762 Comment
  CAS-BOT-BC25253  Arctostaphylos canescens subsp. canescens D. Norris 1970-5-20 12181 Humboldt Crest of ridge on Big Hill Rd. E of Hoopa. Comment
  CAS-BOT-BC23770  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. betwwn Shelter Cove and Kenny Comment
  CAS-BOT-BC23824  Arctostaphylos columbiana Doris K. Kildale 1927-6-25 3583 Humboldt Near Ettersburg Comment
  RSA622687  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27789 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  UC1198660  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15440 Humboldt Eureka 45 Comment
  UC154034  Arctostaphylos columbiana J. P. Tracy 1909-3-7 2944 Humboldt Immediate vicinity of Eureka 0 Comment
  UC314644  Arctostaphylos columbiana Joseph P. Tracy 1924-3-9 6606 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC585913  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13141 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UCD51493  Arctostaphylos columbiana B. L. Kay 1955-3-20 Humboldt 5 miles west of Garberville. Comment
  POM209635  Arctostaphylos columbiana var. columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's point. Comment
  RSA381132  Arctostaphylos columbiana var. columbiana Roman Gankin, W. Richard Hildreth 1967-10-26 1171 Humboldt 21.4 miles east of US 101 on Bald Hills Road from Orick. French Camp Ridge. Comment
  RSA13425  Arctostaphylos columbiana var. tracyi H. E. Parks 1931-12 4950 Humboldt Hobson's Trinidad. 61 Comment
  CAS-BOT-BC24825  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1940-7-14 16689 Humboldt Wilder Ridge (near Kings Peak). 762 Comment
  SEINET11998344  Arctostaphylos klamathensis Unknown 1989-1 s.n. Humboldt Fish Lake Area near Weitchpec, near Klameth River 549 Comment
  BLMAR54  Arctostaphylos manzanita Jennifer Anthony-Wheeler 1994-2-14 54 Humboldt King range, growing along KR rd approx 2mi from rd end 228 Comment
  HSC48987  Arctostaphylos manzanita M. A. Baker 1979-5-25 761 Humboldt Comment
  CAS-BOT-BC24365  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-7-25 2430 Humboldt Briceland Bridge 1/2 mile w. of Darkville. Comment
  CAS-BOT-BC24369  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15247 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC24373  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1925-8-13 1382 Humboldt Willoe Creek Flat. 152 Comment
  CAS-BOT-BC38831  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-6-27 2198 Humboldt Sweasey Lake - McClellan Mountain 792 Comment
  UC1198679  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-7-11 15417 Humboldt vicinity of Garberville 121 Comment
  HSC49996  Arctostaphylos nevadensis M. A. Baker 1979-6-7 781 Humboldt 610 Comment
  UC585956  Arctostaphylos nevadensis Joseph P. Tracy 1935-7-30 14380 Humboldt Salmon Summit 2103 Comment
  CAS-BOT-BC40067  Arctostaphylos nevadensis subsp. knightii Walter Knight; Irja Knight 1988-9-5 6360 Humboldt 21 miles up Bald Hill road from US-101 en route to Hoopa. 975 Comment
  UCD52853  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1174 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  CAS-BOT-BC46630  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16419 Humboldt Grouse Mountain. 1524 Comment
  UCD52154  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1149 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  UCD52155  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1146 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  RSA286310  Arctostaphylos uva-ursi var. coactilis R. F. Thorne 1974-7-29 45082 Humboldt Samoa Dunes. Comment
  RSA47099  Arctostaphylos uva-ursi var. coactilis Doris K. Kildale 1925-9-28 1358 Humboldt Samoa Comment
  JEPS86731  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt on, 3.4 mi w of Main Street, in Larry Pries dairy Centerville Beach Road; Ferndale Comment
  UC1795607  Arctotheca calendula G. D. Barbe, T. C. Fuller 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale Comment
  UC52260  Arenaria serpyllifolia H. P. Chandler 1901-1 Humboldt Klamath R. Comment
  UCR39802  Armeria maritima subsp. californica Kenneth Clark 1981-5-24 1391 Humboldt North Coast, Abalone Point, 'Point Delgada Q. 15 Comment
  HSC45266  Arnica cernua M. Alcasas 1978-6-3 113 Humboldt Horse Mtn. summit 1513 Comment
  UC129316  Arnica discoidea Joseph Burtt Davy and Walter C. Blasdale 1899-7-19 5668 Humboldt Hoopa Mt. North-Western California, Hoopa Mt. Comment
  UC249832  Arnica discoidea Joseph P. Tracy 1923-6-20 6335 Humboldt Briceland 304 Comment
  CAS-BOT-BC82647  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1524 Comment
  SEINET11837693  Arnica latifolia J. P. Tracy 1942-1 17236 Humboldt Trinity Summit, near Box Camp 1524 Comment
  UC180348  Arrhenatherum elatius Joseph P. Tracy 1913-6-10 4084 Humboldt near Bridgeville (Northern Coast Ranges, Rogers Ranch); Northern Coast Ranges, Rogers Ranch 243 Comment
  HSC4719  Artemisia douglasiana Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  SBBG7639  Artemisia douglasiana H. and M. Dearing 1939-5-26 3452 Humboldt N of Arcata Comment
  CAS-BOT-BC93858  Artemisia dracunculus Hubert Jenkins 1943-8-1 s.n. Humboldt Near edge of Eel River in sand. Richardson Grove Comment
  UC249809  Artemisia dracunculus Joseph P. Tracy 1923-2-25 6148 Humboldt river bar at Carlotta; Van Duzen River 30 Comment
  CAS-BOT-BC453343  Aruncus dioicus var. vulgaris Volney Rattan 1878-6-16 s.n. Humboldt Mad River Comment
  UC6180  Asarum caudatum J. Mello Feb 1897 Humboldt Eureka Comment
  RSA24196  Asarum caudatum C. B. Wolf 1941-3-1 4054 Humboldt 4 mi NE of Strongs Station (Van Duzen River) on Rd. to Yager 152 Comment
  RSA296721  Asarum caudatum Clark L. Miller 1979-5-13 1 -129 Humboldt East of Hwy 101 from Seawood Drive. Comment
  SEINET12094120  Asarum caudatum F. H. Utech 1988-1 88 -282 Humboldt Bridgeville to Dinsmore on CA 36 800 Comment
  HSC3273  Asarum hartwegii Doris K. Kildale 1926-5-2 1876 Humboldt Willow Creek Comment
  HSC99498  Asarum hartwegii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 158 Humboldt Near North Trinity Mtn, along Forest Service Rd 10NO2, between two forks of Domingo Creek 1433 Comment
  UC23011  Asclepias speciosa J. Burtt Davy 1899-6-24 5866 Humboldt Hoopa Valley, along the river North Coast Ranges Comment
  CAS-BOT-BC65941  Aspidotis densa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC65946  Aspidotis densa Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC1051  Aspidotis densa D. E. Anderson 1961-9-3 1777 Humboldt Comment
  RSA12562  Aster alpigenus C. B. Wolf 1934-7-2 5877 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  RSA167201  Aster chilensis Joseph P. Tracy 1950-10-7 19383 Humboldt Berry's Mtn, E of Redwood Creek, on Trinity Hwy 549 Comment
Read comments
Aug 15 2009
  CDA17341  Aster occidentalis P. Haggard 2004-8-15 PDR 1285931 Humboldt North Coast Ranges; Six Rivers National Forest, Friday Ridge Rd. 0 Comment
  JEPS16849 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. 762 Comment
  UC33312  Astragalus rattanii var. rattanii W. C. Blasdale 1896-6-8 Humboldt Graham's Range 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
  HSC58324  Asyneuma prenanthoides Overton, Butler 1979-8-2 12621 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC97997  Asyneuma prenanthoides Cara Witte 2007-7-9 454 Humboldt Grouse Mountain. Forest Service Road 5N04. 1/4 mile east of spring. 1554 Comment
  SDSU1603  Athyrium filix-femina var. cyclosorum D. R. Harvey 1938-8-13 2252 Humboldt Redwood Park. Comment
  HSC10342  Athyrium filix-femina var. cyclosorum W. R. Supernaugh, Jr. 1964-12-12 8 Humboldt 1 mi. W of Freshwater Corners on Old Arcata Rd on S side of Hwy. Comment
  HSC44050  Athyrium filix-femina var. cyclosorum Thomas W. Nelson, Jane Nelson 1977-6-19 3493 Humboldt Above Alder Springs, N of pond 1585 Comment
  HSC72972  Athysanus pusillus Gail Newton 1980-6-24 601 Humboldt Near Ladder Rock 1570 Comment
  UC183747  Athysanus pusillus Joseph P. Tracy 1913-6-17 4170 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  HSC4339  Atriplex prostrata Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  UCD56227  Avena barbata A. H. Murphy 1951-3-30 s.n. Humboldt Beside county road. 6 miles south of Petrolia near Mattole Valley Range Hall. Comment
  HSC9019  Avena fatua S. R. Johnson 1965-5-2 53 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC9024  Avena fatua W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  UC1152028  Avena sativa Joseph P. Tracy 1951-5-26 19511 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC36924  Baccharis douglasii Thomas W. Nelson, W. E. Pratt 1975-8-10 2241 Humboldt Along Shively Rd. N of Shively Comment
  SEINET946130  Baccharis douglasii J. P. Tracy 1938-1 16128 Humboldt Mouth of Little River 9 Comment
  JEPS32397  Baccharis glutinosa W. L. Jepson 1936-8-11 17867 Humboldt spot on mountainside, Philipsville South Fork Eel River Comment
  CAS-BOT-BC98030  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka, around Humboldt Bay 30 Comment
  UC673089  Baccharis pilularis Joseph P. Tracy 1940-10-17 16771 Humboldt Camp Grant, 2-5 mi e of South Fork of Eel River Eel River 45 Comment
  HSC12350  Baccharis pilularis subsp. consanguinea Steve Dorei 1970-10-31 139 Humboldt Scotia Bluff area Comment
  UC275466  Balsamorhiza deltoidea Joseph P. Tracy 1925-5-17 6984 Humboldt near South Fork of Trinity River Valley; Trinity River Valley 182 Comment
  UC552310  Balsamorhiza deltoidea Joseph P. Tracy 1935-6-16 11282 Humboldt lower nw slope Buck Mountain 792 Comment
  UC562693  Barbarea orthoceras Joseph P. Tracy 1935-7-25 14239 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC3343  Berberis aquifolium D. E. Anderson 1964-4-24 3544 Humboldt .5 mi. from Hwy. 299, along Titlow Hill Rd. Comment
  UCD39982  Berberis aquifolium var. repens Rodney Gale Myatt 1971-9-21 1186 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  CAS-BOT-BC75676  Berberis nervosa L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  HSC31569  Berberis nervosa Glenn McGourty 1974-5-11 39 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  UC35055  Berberis nervosa Chestnut and Drew 1888-7-11 Humboldt Jarnigan's Comment
  RSA24183  Berberis pinnata C. B. Wolf 1941-3-1 9974 Humboldt Kneeland Prairie, 1/8 mi. s.e. of Kneeland school. 762 Comment
  JEPS58656  Betula occidentalis Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  HSC55017  Bistorta bistortoides Overton, Butler 1979-7-31 11415 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC66262  Blechnum spicant E. A. McGregor 1921-8-17 s.n. Humboldt On old abandoned road grade, S.E. of Orick Comment
  HSC26828  Blechnum spicant Clifton Raymond Chesbrough 1973-6-19 73 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  SBBG226  Blechnum spicant H. and M. Dearing 1939-5-26 3450 Humboldt near Bishop Pines Auto Court Comment
  CDA42493  Blechnum spicant G. D. Barbe, T. C. Fuller 1974-6-18 1874 Humboldt Fern Canyon Road, 2.8 miles west of Highway 101, 5 miles south of Klamath River. 0 Comment
  HSC99625  Blechnum spicant H. S. Logsdon 1964-5-10 14 Humboldt 4 mi. N of Orick at Boye's Prairie Comment
  UC1198302  Boechera acutina Joseph P. Tracy 1935-7-26 14255 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UC562686  Boechera subpinnatifida Joseph P. Tracy 1936-6-17 14971 Humboldt nw slope Buck Mountain; Northern Coast Ranges 853 Comment
  JEPS101806  Bolboschoenus maritimus subsp. paludosus Dean W. Taylor 1991-9-15 12290 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  HSC39874  Bolboschoenus robustus Peter Sorensen 1976-8-6 Humboldt King Salmon Comment
  HSC16669  Boschniakia strobilacea D. E. Anderson 1965-6-1 3773 Humboldt On ridge along Friday Hill Rd., about 2 mi. from its junction with Titlow Hill Rd. 1159 Comment
  HSC41347  Boschniakia strobilacea Brad Klipfel 1974-8-2 501 Humboldt Horse Mtn. Comment
  HSC74466  Boschniakia strobilacea M. A. Baker 1980-5-17 1200 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC420269  Boykinia occidentalis Harley P. Chandler 1901-6-1 1501 Humboldt Klamath River 426 Comment
  HSC60020  Boykinia occidentalis M. A. Baker 1978-5-6 510 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  CAS-BOT-BC420264  Boykinia occidentalis L. B. Kildale 1930-6-1 9746 Humboldt Klamath River at Weitchpec Comment
  RSA32653  Boykinia occidentalis Doris K. Kildale 1925-6-17 701 Humboldt [Unspecified] Comment
  UC857908  Boykinia occidentalis Ira L. Wiggins 1930-7-22 4694 Humboldt between Blue Lake and Willow Creek along bank Redwood Creek; bank of Redwood Creek btw Blue Lake and Willow Creek Comment
  HSC28192  Brassica rapa Thomas W. Nelson 1971-4-12 373 Humboldt Hookton Rd. at the junction of Copenhagen Rd. Comment
  HSC6589  Brassica rapa D. E. Anderson 1962-1-31 1909 Humboldt Blue Lake, near oxidation pond Comment
  HSC45221  Briza maxima M. Alcasas 1978-5-28 110 Humboldt E end of Myrtle Ave., Eureka 8 Comment
  HSC83441  Briza maxima R. N. Raynor 1935-5-22 Humboldt Ft. Seward Comment
  SEINET3921283  Briza maxima K. L. Chambers 1984-6-16 5149 Humboldt Bald Hills Road, 7.9 miles past Lady Bird Johnson Grove, E. of Orick.; 0 Comment
  UC1145096  Briza maxima Joseph P. Tracy 1938-7-15 16061 Humboldt Bucksport; (adjacent to Eureka) 9 Comment
  UCR84723  Briza minor Kathy Harper 1992-5-14 s.n. Humboldt North Coast Range, State Hwy 36 just north of the south fork of the Van Duzen River 762 Comment
  SBBG21833  Brodiaea elegans subsp. elegans D. Myrick 1964-7-26 975 Humboldt Hwy 299 ca. 15 mi E of Arcata 762 Comment
  CAS-BOT-BC484221  Brodiaea elegans subsp. elegans L. R. Abrams 1918-6-16 7179 Humboldt Lower area trasnition Tone Willow Creek Comment
  HSC35940  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1975-7-15 2033 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  UC15039  Brodiaea terrestris subsp. terrestris J. P. Tracy 1901-6-23 1159 Humboldt immediate vicinity Eureka 0 Comment
  UC1197735  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1936-6-9 14893 Humboldt s of point of Cape; Cape Mendocino 3 Comment
  UCD125575  Bromus Laurel Goldsmith 2012-11-1 s.n. Humboldt Near Arcata. Humboldt Bay National Wildlife Refuge. Lanphere Dunes Unit, just outside main office. 6800 Lanphere Road. 5 Comment
  UC1145186  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-31 5332 Humboldt Wolverton Gulch near Hydesville; Wolverton Gulch 91 Comment
  SEINET201048 Image available Bromus carinatus var. marginatus Harold E. Parks, Joseph P. Tracy 1935-6-8 11268 Humboldt Trinidad Comment
  JEPS72928  Bromus diandrus Lincoln Constance 1934-5-26 674 Humboldt Bull Creek Region, South Fork Eel River, s end of Dyerville Bridge Dyerville Bridge; Bull Creek Region, South Fork Eel River, Dyerville Bridge 45 Comment
  UC1131154  Bromus diandrus H. S. Yates 1936-6-16 5662 Humboldt 1 mi sw of Samoa 6 Comment
  HSC9174  Bromus hordeaceus G. B. Kendall 1965-5-8 44 Humboldt Trinidad State Park Beach. Comment
  UC1607840  Bromus hordeaceus H. E. Parks June 1935 4996 Humboldt Trinidad District, Egg Point Egg Point; Trinidad District, Egg Point Comment
  HSC9205  Bromus laevipes True Hoyle 1967-7-24 29467 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  UC37642  Bromus laevipes Joseph Burtt Davy 1899-6-27 5871 Humboldt Hupa Valley Comment
  HSC54214  Bromus tectorum Griswold, Butler 1979-7-12 7264 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC70926  Bromus tectorum R. York 1980-5-18 577 Humboldt Near Black Mountain 792 Comment
  UC725498  Bromus vulgaris A. A. Heller 1923-7-10 13789 Humboldt Humboldt Camp between Scotia and Pepperwood; Humboldt Camp Comment
  UC1199255  Cacaliopsis nardosmia Joseph P. Tracy 1908-6 2822 Humboldt nw slope of Buck Mountain Buck Mountain 1219 Comment
  RSA484551  Cakile edentula M. B. Dunkle 1936-8-18 4823 Humboldt Moonstone Beach. Comment
  CHSC10120  Cakile maritima J. W. Johnson 1962-4-29 1299 Humboldt Arcata. W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC103983  Cakile maritima E. R. Fyer 2015-4-26 23 Humboldt Along New Navy Base Road 9 Comment
  UCD114939  Cakile maritima M. Barbour 1969-12-15 s.n. Humboldt South of Silver Strand State Beach. Comment
  SEINET10901893 Image available Calamagrostis foliosa Henry N. Bolander 1866-1 Bolander 6470 Humboldt Mattole district Comment
  UC1145050  Calamagrostis koelerioides Joseph P. Tracy 1936-7-26 15050 Humboldt Willow Creek Canyon; along Trinity Hwy 457 Comment
  UC526776  Calamagrostis nutkaensis Joseph P. Tracy 1925-7-5 7174 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1103551  Calandrinia ciliata Joseph P. Tracy 1904-4-24 2026 Humboldt sand dunes of ocean beach at Humboldt Bay; Northern Coast Region Comment
  UCR196002  Callitriche heterophylla subsp. bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35323 Humboldt Northwestern; Outer North Coastal region, Clam Beach County Park, along highway 3 Comment
  UC198582  Callitriche marginata Joseph P. Tracy 1917-6-17 4823 Humboldt Salmon Creek Valley Northern Coast Ranges, Humboldt Bay (around Humboldt Bay) 30 Comment
  CAS-BOT-BC80391  Calocedrus decurrens Doris K. Kildale 1928-10-7 6750 Humboldt Trinity River at Willow Creek Flat Comment
  HSC57885  Calocedrus decurrens Overton, Butler 1979-7-31 11434 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC98720  Calocedrus decurrens Cara Witte 2008-7-11 886 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  RSA47092  Calocedrus decurrens Doris K. Kildale 1926-8-31 2606 Humboldt Union Mattole - Geo. H. Miner s Ranch, Mattole River Valley Comment
  UC502900  Calocedrus decurrens Joseph P. Tracy 1932-7-13 10499 Humboldt open ground at Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UCR84791  Calochortus amabilis Kathy Harper 1992-5-14 s.n. Humboldt S-facing road embankment on Hwy 254 (parallel to Hwy 101), where road follows S fork of Eel River, c. 1 mi north of Phillipsville 91 Comment
  UC535782  Calochortus amabilis Eleanor Armstrong 1934-5-25 Humboldt n of Redway Comment
  HSC74349  Calochortus tolmiei Gail Newton 1980-6-28 748 Humboldt Near Mad River Butte. 1536 Comment
  UC198648  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  UC1197694  Calochortus vestae Joseph P. Tracy 1930-6-29 8811 Humboldt nw slope Buck Mountain 762 Comment
  CAS-BOT-BC273313  Calycadenia fremontii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC205227  Calycadenia fremontii Joseph P. Tracy 1919-9-13 5188 Humboldt near Mouth of Willow Creek; Valley of Trinity River, Northern Coast Ranges 152 Comment
  JEPS38589  Calycadenia multiglandulosa W. L. Jepson 1902-7-4 1983 Humboldt Hupa Valley Comment
  UC1196476  Calypso bulbosa Joseph P. Tracy 1949-6-6 18303 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  RSA381906  Calypso bulbosa Grinnell 1917-6-6 s.n. Humboldt Hoopa Indian Reservation Comment
  HSC17640  Calyptridium monospermum Doris K. Kildale 1925-8-16 1227 Humboldt Trinity Summit 1829 Comment
  HSC32094  Calystegia occidentalis subsp. occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5706 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC40007  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1976-7-1 2903 Humboldt Along ridge N of Bear Creek 1463 Comment
  SBBG5774  Calystegia occidentalis subsp. occidentalis H. and M. Dearing 1939-5-24 Humboldt Pass Rd, Dyerville to Mattole Comment
  UC562491  Calystegia purpurata Joseph P. Tracy 1927-7-24 8298 Humboldt Upper Mattole 152 Comment
  HSC59102  Calystegia soldanella Clark L. Miller 1979-5-24 1149 Humboldt Dunes off Samoa Boulevard about .5 mi. from Coast Guard Station Gate Comment
  RSA71112  Calystegia soldanella F. W. Peirson 1923-7-11 3805 Humboldt 18 miles north of Eureka Comment
  UCD126159  Calystegia soldanella Linda M. Barker 1976-6-1 1559 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET3992218  Camassia leichtlinii Unknown 1942-5-16 17331 Humboldt Redway (near Garberville) 152 Comment
  HSC16442  Camissonia cheiranthifolia J. W. Johnson 1961-8-17 1044 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC38195  Camissonia cheiranthifolia Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  POM72743  Camissonia cheiranthifolia subsp. cheiranthifolia P. A. Munz 1925-6-20 9891 Humboldt Clam Beach, 14 miles north of Eureka Comment
  RSA167258  Camissonia ovata Joseph P. Tracy 1951-5-5 19392 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  SEINET10462972  Campanula prenanthoides Overton 1979-8-2 OVERTON 12621 Humboldt Near Grogan Hole, on the Salmon Mountain quad., close to the town of Hoopa 1554 Comment
  SEINET10840312  Campanula prenanthoides Mcgregor 1921-8-17 MCGREGOR s.n. Humboldt Abandoned road grade, Oriels Comment
  SEINET10463745  Campanula scouleri Newton 1981-7-24 Newton 2300 Humboldt Iaqua Buttes quadrangle; near Chaparral Mountain, forest openings. 1433 Comment
  UC1736612  Campanula scouleri Dean W. Taylor 1991-8-15 12279 Humboldt Snow Camp Lake 1310 Comment
Read comments
Apr 8 2012
  UC34826  Campanula scouleri Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC98089  Campanula scouleri Cara Witte 2007-7-3 414 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1259 Comment
  SEINET10463695  Campanula scouleri Baker 1979-6-29 Baker 956 Humboldt Hopkins Ck. T9N R5E MIDDLE SECT. 3. 760 Comment
  SEINET10463752  Campanula scouleri Rattan 1883-6-29 RATTAN s.n. Humboldt Near Redwood Creek Comment
  SEINET10463763  Campanula scouleri Ira L. Wiggins 1930-7-22 Wiggins 4699 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  UC1199216  Capsella bursa-pastoris Joseph P. Tracy 1940-10-15 16757 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC49217  Cardamine californica J. O. Sawyer 1977-4-23 2842 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC59654  Cardamine californica Michael Dalke 1979-4-21 57 Humboldt Lord Ellis Summit area, 1 mi. S of Hwy. 299 640 Comment
  UC249683  Cardamine californica Joseph P. Tracy 1921-3-20 5425 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River at Blue Slide 91 Comment
  RSA0034557  Cardamine californica var. integrifolia H. E. Parks, Joseph P. Tracy 1931-3-26 916 Humboldt Lower Van Duzen River. 61 Comment
  CAS-BOT-BC37890  Cardamine oligosperma Alice Eastwood 1907-4-21 21 Humboldt Trinidad. Comment
  HSC26791  Cardamine oligosperma Thomas W. Nelson 1971-4-27 426 Humboldt Along Jolly Giant Creek, HSU campus Comment
  RSA183564  Cardamine oligosperma R. I. Bonn 1965-4-23 18 Humboldt 4 miles W of Arcata on Lanphere Rd. Comment
  HSC28134  Cardamine oligosperma J. D. Ackerman, A. M. Montalvo 1973-4-29 46 Humboldt 3 mi. E of Kneeland 500 Comment
  HSC90395  Cardamine oligosperma Jean Hanson 1980-4-12 37 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  UC668108  Cardionema ramosissimum Joseph P. Tracy 1933-8-22 12993 Humboldt mouth of Eel R. 3 Comment
  RSA167248  Carduus tenuiflorus Joseph P. Tracy 1947-6-8 17703 Humboldt 0.5 mile west of town Comment
  JEPS25976  Carex amplifolia Joseph P. Tracy 1935-6-23 13986 Humboldt French Camp Ridge 1066 Comment
  HSC76400  Carex aquatilis var. dives L. P. Janeway 1982-8-7 118 Humboldt Dry Lagoon, middle of lagoon 3 Comment
  JEPS109914  Carex arcta Dean W. Taylor 2006-8-3 19573 Humboldt Lake Prairie; marshy area between the dam and the county road 1057 Comment
  JEPS109966  Carex arcta Dean W. Taylor 2006-8-3 19575 Humboldt Snow Camp Lake; northwestern end of the lake 1396 Comment
  SEINET200965  Carex bolanderi Joseph P. Tracy 1914-7-5 4549 Humboldt Northern Coast Ranges Bald Mountain between High Prairie and Snow Camp. 1067 Comment
  HSC36160  Carex bolanderi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2051 Humboldt FS Rd. 2S08, below Alder Springs Comment
  CDA38908  Carex buxbaumii Gordon Leppig 1997-6-19 448 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  UC1115804  Carex canescens Joseph P. Tracy 1939-7-9 16318 Humboldt at Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  HSC34955  Carex densa Thomas W. Nelson 1975-5-24 1866 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC303071  Carex densa Joseph P. Tracy 1912-7-31 3906 Humboldt on nw slope of Buck Mountain Northern Coast Ranges, Burr Valley, Buck Mountain 1066 Comment
  CAS-BOT-BC34970  Carex densa Joseph Prince Tracy 1928-6-17 8453 Humboldt Northern Coast Ranges. Trinity River Valley, at Willow Creek. 152 Comment
  JEPS79839  Carex densa Joseph P. Tracy 1936-6-3 14847 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
Read comments
Nov 1 2009
  UC1103103  Carex deweyana subsp. leptopoda Joseph P. Tracy 1923-6-20 6309 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  HSC74421  Carex echinata subsp. echinata Gail Newton 1980-8-10 2044 Humboldt Near Blake Mtn. 1707 Comment
  RSA246876  Carex echinata subsp. phyllomanica Robert F. Thorne, Percy C. Everett 1965-8-7 35188 Humboldt Big Lagoon. 2 Comment
  SEINET7558591 Image available Carex feta Andrew L. Hipp 1999-5-31 457 Humboldt Alder Point, Alder Pt Rd ca 5 mi W of Alder Pt. Comment
  SEINET4292220 Image available Carex fracta Unknown 2003-1 7942 Humboldt On northeast side of Titlow Hill Road, across from a small pond, on the map but un-named, 1.1 km south of Cold Spring. Grouse Mountain quad. Comment
  CAS-BOT-BC21280  Carex fracta Joseph Prince Tracy 1937-7-25 15542 Humboldt Trinity Summit. Head of Hors-Linto Creek. 1371 Comment
  UC1103576  Carex geyeri Joseph P. Tracy 1938-6-13 15901 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC20877  Carex globosa Harold Ernest Parks; Joseph Prince Tracy 1942-5-16 11556 Humboldt Vicinity of Garberville. 152 Comment
  JEPS80027  Carex globosa Joseph P. Tracy 1936-5-22 7507 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC146605  Carex gynodynama Alice Eastwood; John Thomas Howell 1937-6-23 4841 Humboldt 8 miles from Kneeland on road to Yager Comment
  SEINET7561248 Image available Carex harfordii David Castaner 1989-5-28 8067 Humboldt Patrick Point SP Area, Redwood Forest. Comment
  UC519695  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek South Fork of the Eel River Comment
  HSC102205  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1120 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CHSC40132  Carex laeviculmis L. P. Janeway 1983-5-15 296 Humboldt Bend of Mad R on s side, near Fish Hatchery Rd and across from Blue Lake. 24 Comment
  HSC102152  Carex laeviculmis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1059 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC31262  Carex lenticularis var. impressa Joseph Prince Tracy 1932-7-14 10554 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  JEPS79865  Carex leporina Joseph P. Tracy 1936-6-28 15014 Humboldt near Murphy Meadow (Bald Mountain); Bald Mountain 1066 Comment
  HSC102224  Carex leptopoda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1143 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC31822  Carex mendocinensis Joseph Prince Tracy 1935-7-14 14086 Humboldt Along streamlet Grouse Mountain. 1524 Comment
  CAS-BOT-BC32132  Carex multicaulis Joseph Prince Tracy 1942-6-2 17105 Humboldt Valley of South Yager Creek. 762 Comment
  SEINET201051  Carex multicaulis J. P. Tracy 1927-3-27 7862 Humboldt Northern Coast Ranges Trinity River Valley near the South Fork 183 Comment
  UC152055  Carex multicaulis Joseph P. Tracy 1950-7-1 18958 Humboldt near Friday Camp; Grouse Mountain, Friday Ridge 1219 Comment
  HSC102227  Carex multicostata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1148 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CHSC2106  Carex obnupta M. Anthony 1937-5-15 Humboldt Humboldt State College. Comment
  HSC104103  Carex obnupta Kyle Brown 2015-4-25 45 Humboldt Arcata, along trail at Mad River 15 Comment
  POM118373  Carex obnupta Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC249766  Carex obnupta Joseph P. Tracy 1923-6-24 6371 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA91660  Carex obnupta F. W. Peirson 1941-7-28 13108 Humboldt Road to Patrick Point. Comment
  UC562550  Carex ovalis Joseph P. Tracy 1934-7-18 13413 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  CAS-BOT-BC119267  Carex ovalis Joseph Prince Tracy 1936-5-29 14826 Humboldt Gans Prairie on ridge E or Orick. 548 Comment
  HSC76793  Carex pachystachya L. P. Janeway 1982-6-20 17 Humboldt Along Titlow Hill Rd., 3 mi. from Hwy. 299 1220 Comment
  UC1103581  Carex pachystachya Joseph P. Tracy 1928-5-13 8432 Humboldt hillside facing Fleener Creek (Centerville); North Coast Ranges 15 Comment
  BLMAR70  Carex pansa Jennifer Anthony-Wheeler 1994-5-18 70 Humboldt Samoa/manilla dunes, growing intermittently in wet area in the samoa dunes rec. area 6 Comment
  HSC7189  Carex pansa D. R. Junell 1965-5-2 39 Humboldt 1 mi. S of Fairhaven on Samoa peninsula Comment
  CAS-BOT-BC28309  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-14 10562 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  CHSC102860  Carex subbracteata Peter F. Zika 2009-6-16 24500 Humboldt Outer North Coast Range. Above Route 299, 0.7 road miles W of Berry Summit. 780 Comment
  SEINET7486520 Image available Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt bove Chezen Road, at junction with Route 299, Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits 150 Comment
  CAS-BOT-BC116907  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-22 4725 Humboldt Near Harris Comment
  CAS-BOT-BC116681  Carex subfusca Joseph Prince Tracy 1936-6-17 14954 Humboldt Buck Mountain, lower foothills of its NW slope. 762 Comment
  HSC103143  Carex subfusca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1154 Humboldt Patterson Meadows 1555 Comment
  SEINET10880003  Carex subfusca David Castaner 1989-5-28 Castaner 8067 Humboldt Patrick Point SP area. Redwood forest. Comment
  UC562246  Carex tumulicola Joseph P. Tracy 1932-5-1 9853 Humboldt vicinity Garberville; Redway 121 Comment
  HSC7084  Carex tumulicola H. E. Parks 1924-8-9 2444 Humboldt Near Carlotta Comment
  SEINET11632747  Carex utriculata J. P. Tracy 1950-1 19264 Humboldt Box Camp, Trinity Summit 1524 Comment
  CAS-BOT-BC115064  Carex vesicaria Joseph Prince Tracy 1934-8-29 13622 Humboldt South Fork Mountain, in wet meadow and McKay Camp. 1676 Comment
  CAS-BOT-BC114985  Carex viridula Joseph Prince Tracy 1924-7-13 6720 Humboldt In brackish swamp, Big Lagoon. 6 Comment
  CHSC68560  Castilleja ambigua subsp. humboldtiensis Vernon H. Oswald 1997-4-29 8351 Humboldt Near seal level. Humbolt Bay NWR, levee north of Long Pond along the arm of South Humbolt Bay separating Teal Island from the main part of the refuge. Comment
  HSC36101  Castilleja ambigua subsp. humboldtiensis W. C. Vinyard 1974-5-22 Humboldt Beside Humboldt Bay at the boat access at Arcata Comment
  HSC76226  Castilleja applegatei Overton, Butler 1979-7-24 9742 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  CAS-BOT-BC255521  Castilleja applegatei var. pinetorum F. W. Pennell; J. P. Tracy 1940-7-7 26097 Humboldt Grouse Mountain, w. of Salyer 1554 Comment
  JEPS2925  Castilleja arachnoidea W. L. Jepson Jul 16 1902-Jul 23 1902 2054 Humboldt Trinity Summit 2133 Comment
  HSC38194  Castilleja attenuata Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  HSC48266  Castilleja attenuata D. E. Anderson 1965-5-8 3642 Humboldt About 2 mi. N of Willow Creek on road running along E side of Trinity River Comment
  HSC72570  Castilleja densiflora J. P. Smith, J. O. Sawyer 1976-5-2 8623 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  JEPS15207  Castilleja exserta subsp. exserta R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quad. Comment
  SBBG7041  Castilleja exserta subsp. exserta H. and M. Dearing 1939-5-25 3433 Humboldt sand dunes near Samoa 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
  RSA516622  Castilleja litoralis R. C. Bacigalupi, G. Thomas Robbins, C. L. Custer 1954-8-11 4758 Humboldt 1.2 miles south of Trinidad. Comment
  UC1374940  Castilleja miniata Noel H. Holmgren and Liew Fah Seong 1969-6-24 3612 Humboldt n of Fortuna (along road) Comment
  HSC44346  Castilleja pruinosa Brad Klipfel 1975-6-17 689 Humboldt Horse Mtn. Comment
  HSC73640  Castilleja pruinosa M. A. Baker 1980-7-23 3169 Humboldt Near Orleans Mtn. 1859 Comment
  UC582476  Castilleja pruinosa Joseph P. Tracy 1933-7-11 12674 Humboldt Horse Mountain 1432 Comment
  HSC99061  Castilleja rubicundula subsp. lithospermoides Cara Witte 2007-6-14 283 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  HSC79430  Castilleja wightii Kenneth Clark 1980-6-14 670 Humboldt Western slope of Dead Man's Gulch 145 Comment
  HSC103011  Catalpa bignonioides J. P. Smith 2014-6-6 13868 Humboldt Willow Creek. Ornamental tree 180 Comment
  UC1502111  Ceanothus R. Sutherland 1976-10-30 1 .30-76 Humboldt Pt. Delgada Quad. 624 Comment
  CAS-BOT-BC48531  Ceanothus cordulatus Doris K. Kildale 1926-9-5 2613 Humboldt Lasseck's Peaks 1661 Comment
  UCR32075  Ceanothus cuneatus David J. Keil 1983-7-2 17328 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  UC1193330  Ceanothus cuneatus var. cuneatus K. Cuff Sep 1950 125 Humboldt 6 mi nw Garberville (rocky ridgecrest of Bear Butte); Quad. 29C1 762 Comment
  RSA25803  Ceanothus foliosus Carl B. Wolf 1941-7-29 11093 Humboldt Along the Redwood Hwy, 0.7 mile N of jct with Hwy 1 from Ft. Bragg 61 Comment
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Jun 7 2011
  CAS-BOT-BC49656  Ceanothus foliosus var. foliosus Carl B. Wolf 1941-7-29 11093 Humboldt Along the Redwood Highway, 7/10 mi. no. of Jnct. with State Highway #1 from Ft. Bragg. 60 Comment
  HSC37594  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-17 0 .17575 Humboldt Along Horse Mtn. Rd 518 Comment
  CAS-BOT-BC50041  Ceanothus incanus C. Hart Merriam 1920-8-30 s.n. Humboldt South Fork Eel River near Garberville (near old bridge) Comment
  CAS-BOT-BC50046  Ceanothus incanus Doris K. Kildale 1928-5-19 5137 Humboldt Chalk Mountain Comment
  CAS-BOT-BC50054  Ceanothus incanus Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  HSC43194  Ceanothus incanus R. Sutherland 1975-5-13 9 .13575 Humboldt 579 Comment
  RSA95401  Ceanothus incanus Joseph P. Tracy 1932-5-1 9878 Humboldt Vicinity of Garberville Comment
  HSC59445  Ceanothus integerrimus Kenneth Clark 1979-5-15 305 Humboldt Tish Tang State Campground, 11 mi N of Willow Creek on Hwy. 96 Comment
  RSA186940  Ceanothus integerrimus Marcus E. Jones 1931-7-16 28946 Humboldt Junction, East of Arcata. Comment
  RSA95358  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1193285  Ceanothus oliganthus var. sorediatus P. Zinke 1950-8-26 157 Humboldt Salmon Creek 3 mi w Miranda; Quad. 29C1, Salmon Creek 91 Comment
  HSC18322  Ceanothus pumilus Class 1937-5-12 Humboldt Hoopa Comment
  HSC18375  Ceanothus pumilus P. J. Zinke 1950-8-24 156 Humboldt Samuels Elk Ridge Ranch, 8 mi. W of Philipsville 701 Comment
  UC170018  Ceanothus pumilus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5647 Humboldt Hoopa Mountain North Coast Ranges, Hoopa Mountain Comment
  UC902165  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17526 Humboldt along Trinity Highway (Willow Creek Canyon); Willow Creek Canyon 609 Comment
  BLMAR200  Ceanothus thyrsiflorus Donald Hazlett 1994-6-7 200 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC69626  Ceanothus thyrsiflorus R. Kalal 1980-5-8 33 Humboldt Arcata oxidation ponds 2 Comment
  RSA172184  Ceanothus thyrsiflorus Robert F. Thorne 1957-9-3 19022 Humboldt Patrick's Point State Park. Comment
  UCD112727  Ceanothus thyrsiflorus K. Twitchell 1996-5-11 25 Humboldt Crannell, along old Highway 101 at Moonstone beach access. 36 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
  UCR37522  Ceanothus velutinus Mike Malamus, P. Williams, Brian Kearney 1984-5-26 42 Humboldt 5 miles NW of Bluff Creek Station on Road 13N01 930 Comment
  CDA7305  Centaurea nigra E. C. Whitney 1968-9-6 Humboldt Holmes Flat. Rutledge property. 0 Comment
  CDA7306  Centaurea nigra K. E. Frick 1961-8-16 Humboldt Eureka. Near fairgrounds. 0 Comment
  RSA167189  Centaurea solstitialis Joseph P. Tracy 1943-11-28 17452 Humboldt Eel River bar at mouth of Van Duzen near Alton Comment
  UC566944  Centaurium muehlenbergii H. L. Mason 1928-7-14 4903 Humboldt near Garberville; East Fork of Eel River Comment
  BLMAR319  Centaurium tenuiflorum Jennifer Anthony-Wheeler 2002-7-23 319 Humboldt Headwaters Forest Reserve, salmos pass parking lot 353 Comment
  UC1198612  Centunculus minimus Joseph P. Tracy 1930-6-15 8747 Humboldt near Bosworth's (Northern Coast Ranges, Larrabee Creek); Northern Coast Ranges, Larrabee Creek 457 Comment
  CAS-BOT-BC384900  Cerastium arvense Doris K. Kildale 1929-5-26 9142 Humboldt Klamath River at Orleans 152 Comment
  UC1223235  Cerastium arvense Joseph P. Tracy 1950-6-15 18820 Humboldt 7 mi. n. Harris (Huestis Rock, on n.e. side of Ridge); Mail Ridge, Huestis Rock Comment
  CAS-BOT-BC384998  Cerastium fontanum Carl B. Wolf 1927-8-22 797 Humboldt Big Lagoon Comment
  HSC59557  Cerastium glomeratum Rick Lundquist 1979-4-25 40 Humboldt .3 mi. S of Samoa on Samoa Blvd. 0 Comment
  POM187538  Cercis occidentalis Marcus E. Jones 1931-7-16 28996 Humboldt Junction, East of Arcata. Comment
  UC527564  Cercis occidentalis C. B. Wolf 1931-8-31 2380 Humboldt Sandy Bar Swimming Hole South Fork of Trinity River (slopes on w side of river 1 mi above its mouth) 243 Comment
  CAS-BOT-BC135531  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1946-7-7 17612 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC72829  Chamaecyparis lawsoniana Gail Newton 1980-6-16 195 Humboldt Near Onion Mtn. 1280 Comment
  SEINET10719673  Chamaecyparis lawsoniana Ronald J. Mastrogiuseppe 1966-1 Mastrogiuseppe s.n. Humboldt Growing in upper Bull Creek, Humboldt Redwoods State Park. Comment
  UC1198975  Chamaesyce serpyllifolia Joseph P. Tracy 1925-11-1 7299 Humboldt along Eel River (from South Fork to Scotia, Shively); Northern Coast Ranges 60 Comment
  UCD103625  Chamerion angustifolium Linda M. Barker 1976-8-24 1682 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC166046  Chamerion angustifolium subsp. circumvagum T. G. W. 1923-1-1 s.n. Humboldt Arcata Comment
  HSC40253  Chamerion angustifolium subsp. circumvagum Linda M. Barker 1976-8-24 1682 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC68265  Cheilanthes gracillima Marshall Avery Howe 1896-6-6 s.n. Humboldt Kneeland Prairie Comment
  HSC996  Cheilanthes gracillima D. E. Anderson 1965-4-24 3539 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  UC582918  Chenopodium botrys P. A. Munz 1936-8-9 14334 Humboldt Williams Redwood Grove South Fork of Eel River Comment
  RSA246903  Chenopodium multifidum R. F. Thorne, P. Everett 1965-8-5 35168 Humboldt Samoa Dunes. 3 Comment
  RSA44459  Chenopodium multifidum H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  BLMAR166  Chimaphila menziesii Donald Hazlett 1994-6-7 166 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC76590  Chimaphila menziesii Denis Kearns 1981-7-24 448 Humboldt Near Whiteys Peak. 1768 Comment
  UC1197597  Chimaphila menziesii Joseph P. Tracy 1926-6-6 7583 Humboldt near summit on rd. w. from Hoopa to Bair's (Hoopa Mt.); Northern Coast Ranges, Hoopa Mt. 1066 Comment
  HSC54505  Chimaphila umbellata Overton, Butler 1979-7-23 9403 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC1197594  Chimaphila umbellata Joseph P. Tracy 1911-7-7 3421 Humboldt ridge n. of Willow Creek (between Willow & Campbell Creeks, Brannan Mt, near summit); Northern Coast Ranges, Brannan Mt. 1219 Comment
  UC1225900  Chimaphila umbellata Joseph P. Tracy 1947-7-9 17856 Humboldt Horse Mt. 1432 Comment
  UC32702  Chimaphila umbellata Chesnut and Drew 1888-7-8 Humboldt near Campbell's Comment
  CAS-BOT-BC236918  Chloropyron maritimum subsp. palustre Joseph P. Tracy 1938-7-15 16064 Humboldt At Fields Landing, around Humboldt Bay 3 Comment
  HSC100429  Chrysanthemum leucanthemum Carl C. Marshall Jun 1885 130 Humboldt Jarnigan's and mouth of Mad River. Comment
  POM289618  Chrysanthemum leucanthemum Lyman Benson 1928-7-10 421 Humboldt Hills at Fortuna; Seaward N Coast Mt. Range, Mouth of Eel River 30 Comment
  CAS-BOT-BC36485  Chrysolepis chrysophylla Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of orleans Mt. 1828 Comment
  RSA178559  Chrysolepis chrysophylla Joseph P. Tracy 1950-7-31 19239 Humboldt Grouse Mountain, top of mountain. 1524 Comment
  RSA20963  Chrysolepis chrysophylla Carl B. Wolf 1937-9-13 9338 Humboldt North Coast Range, summit of Grouse Mt. 1645 Comment
  HSC54607  Chrysolepis chrysophylla var. minor Overton, Butler 1979-7-24 9699 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  CAS-BOT-BC36360  Chrysolepis sempervirens Joseph P. Tracy 1937-7-29 15583 Humboldt South Fork Mountain; barren rocky places along summit near Blake Lookout 1706 Comment
  HSC96494  Cicuta douglasii Gordon Leppig 1997-8-13 637 Humboldt Big Lagoon County Park 3 Comment
  JEPS15745  Cicuta douglasii Joseph P. Tracy 1925-7-5 7179 Humboldt near High Prairie (on Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC180176  Cicuta douglasii Joseph P. Tracy 1914-9-6 4612 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC24389  Circaea alpina subsp. pacifica J. O. Sawyer 1970-6-24 2254 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 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
  UC144064  Circaea alpina subsp. pacifica Joseph P. Tracy Jun 27 1908-Jun 30 1908 2716 Humboldt opposite Buck Mt. (Van Duzen R. Valley); Northern Coast Ranges, Van Duzen R. Valley 762 Comment
  UC582530  Cirsium arvense Joseph P. Tracy 1933-8-13 12963 Humboldt Arcata Bottom 15 Comment
  HSC5386  Cirsium brevistylum H. E. Parks, J. P. Tracy 1934-7-13 13383 Humboldt Trinidad Head 61 Comment
  CDA15023  Cirsium brevistylum B. Villegas 1998-8-4 s.n. Humboldt North Coast Ranges; Hwy 299 between mileposts 21.50 and 18, near Willow Creek. 0 Comment
  CAS-BOT-BC278060  Cirsium douglasii var. breweri Alice Eastwood; John Thomas Howell 1937-6-24 4865 Humboldt 5 miles east of Berry Summit Comment
  UC1565808  Cirsium douglasii var. douglasii R. Spellenberg 1990-7-10 10253 Humboldt 1 mi w of Horse Mountain (7.5 air mi sw of Willow Creek county road 7K100, 4.5 mi s of Berry Summit (on Calif. Hwy. 299), extreme e edge of county) 1219 Comment
  UC129605  Cirsium occidentale var. candidissimum Harley P. Chandler 1901-6-1 1490 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC204828  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  UC302187  Cirsium remotifolium Joseph P. Tracy 1926-7-5 7740 Humboldt Iaqua Northern Coast Ranges, Iaqua 609 Comment
  RSA0070877  Cirsium remotifolium Joseph P. Tracy 1949-8-11 18472 Humboldt East of headwaters of Redwood Creek, beginning where the electric power line crosses, and working south. Kinsey Ridge, south from Grouse Mt., 2 to 6 miles. 1280 Comment
  UC129537  Cirsium remotifolium var. odontolepis J. Burtt Davy 1899-7-30 6190 Humboldt near Arcata (Wild-cat Road); North Coast Ranges Comment
  UC1052188  Cirsium vulgare J. L. Meyer 1954-10-11 30 Humboldt 3 m n Blocksburg; Quad. No. 29A3 457 Comment
  HSC11999  Cirsium vulgare D. La Conte 1970-7-11 27 Humboldt Comment
  HSC5385  Cirsium vulgare J. W. Johnson 1961-9-10 1113 Humboldt Arcata, S of Dune 3 N, Christenson Farm, Samoa Pennisula Comment
  HSC59685  Cirsium vulgare George Kirn 1977-10-30 Humboldt Near rail bridge over Elk River 6 Comment
  UC1196997  Clarkia amoena J. P. Tracy 1898-8-13 286 Humboldt Eureka Comment
  UC162624  Clarkia amoena Joseph P. Tracy 1911-7-10 3499 Humboldt along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges 762 Comment
  CAS-BOT-BC160917  Clarkia amoena subsp. amoena C. Hart Merriam 1922-7-13 s.n. Humboldt Fortuna Comment
  HSC8649  Clarkia amoena subsp. huntiana Thomas W. Nelson, James Nelson 1975-9-3 2191 Humboldt Along N side of Ashfield Butte Comment
  CAS-BOT-BC164177  Clarkia concinna M. S. Jussel 1931-5-2 s.n. Humboldt Garberville Comment
  HSC38102  Clarkia gracilis Thomas W. Nelson, James Nelson 1976-5-30 2623 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC172507  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1925-6-28 804 Humboldt Kneeland Prairie, bald hills 762 Comment
  UC183692  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1912-8-1 3957 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC35399  Clarkia purpurea subsp. quadrivulnera Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC162625  Clarkia rhomboidea Joseph P. Tracy 1911-7-12 3520 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UCR198252  Clarkia rubicunda Dean Kelch 2007-7-25 07- 507 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  HSC100898  Claytonia caroliniana var. sessilifolia Carl C. Marshall Jun 1886 280 Humboldt Trinity Summit. Comment
  HSC75469  Claytonia cordifolia J. O. Sawyer 1980-7-18 3616 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC494168  Claytonia perfoliata subsp. perfoliata H. E. Parks, J. P. Tracy 1930-5-25 877 Humboldt Laribee Valley Comment
  CAS-BOT-BC440090  Claytonia perfoliata subsp. perfoliata J. M. Miller 1974-6-3 369 Humboldt Horse Mtn; 2.6 mi. s. of U.S. 299 on the Horse Mtn/Titlow Hill rd. On the west side of the road. 1066 Comment
  HSC36878  Claytonia rubra subsp. rubra J. P. Smith, J. O. Sawyer, J. Cole 1976-4-18 8614 Humboldt Bald Hills Rd., 17 mi. E of its jct. with Hwy. 101 854 Comment
  SEINET198592  Claytonia sibirica H. E. Parks 01421 Humboldt Spruce Cove Trinidad Comment
  UC7932  Claytonia sibirica Harley P. Chandler May 1901 1264 Humboldt Redwood Belt; North Coast Ranges 152 Comment
  RSA67628  Claytonia sibirica P. A. Munz 1951-7-15 16549 Humboldt 5 miles N of Willow Creek 305 Comment
  HSC17720  Claytonia washingtoniana D. E. Anderson 1962-3-31 1953 Humboldt Coastal area of Prairie Creek State Park Comment
  HSC99239  Claytonia washingtoniana C. E. Fellows 1971-6-7 454 Humboldt 0.35 mi. E of Arlington Rd. on Alder Grove Rd. Comment
  UC668071  Clematis ligusticifolia Joseph P. Tracy 1937-8-3 15608 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  UCSB12091  Clintonia andrewsiana Dearing, Hugh; Dearing, Margaret 1931-5-16 Humboldt Weott Comment
  HSC102018  Clintonia uniflora M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 919 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  RSA12552  Clintonia uniflora Carl B. Wolf 1934-7-2 5887 Humboldt Snow camp. (Mts. east of Korbel) 1372 Comment
  HSC20635  Collinsia linearis D. E. Anderson 1965-6-1 3777 Humboldt Along Ridge Rd., about 7 mi. NE of its Jct. with Titlow Hill Rd. Comment
  HSC49699  Collinsia linearis J. O. Sawyer 1977-7-3 3021 Humboldt At tish Tang at Tang Creek on Rd. S of Gorgan Hole Comment
  JEPS7425  Collinsia linearis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5682 Humboldt Hupa Mt.; North Coast Ranges Comment
  HSC97483  Collinsia parviflora C. Witte 2007-5-10 18 Humboldt Along National Forest 1, near Kinsey Ridge. .2 miles south of intersection with 5N04. 1451 Comment
  HSC100660  Collinsia rattanii Carl C. Marshall Jul 1887 414 Humboldt Spruce Grove. Comment
  JEPS25070  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1932-4-24 9819 Humboldt between Miranda and Redway; South Fork Eel River 91 Comment
  HSC44554  Collinsia torreyi Brad Klipfel 1973-7-15 173 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC32261  Collomia heterophylla J. O. Sawyer 1970-6-24 2250 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC53963  Collomia heterophylla Griswold, Butler 1979-7-11 7017 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC16921  Collomia heterophylla D. E. Anderson 1965-5-15 3699 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. 198 Comment
  HSC32312  Collomia tracyi D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5660 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC36436  Conium maculatum John Rehlingl 1974-6-27 Humboldt Along Alliance Rd. Comment
  UC562291  Convolvulus arvensis Joseph P. Tracy 1934-7-15 13407 Humboldt near Fields Landing; North Coast Ranges, around Humboldt Bay 6 Comment
  HSC6349  Convolvulus arvensis H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  CAS-BOT-BC133716  Corallorhiza Doris K. Kildale 1928-3-29 4367 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC1196451  Corallorhiza maculata Joseph P. Tracy 1932-7-17 10663 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UCD138919  Corallorhiza maculata Kenneth D. Stewart 1965-7-13 s.n. Humboldt U.S. Highway 299, ca. 20 miles east of Blue Lake. Comment
  HSC95706  Corallorhiza mertensiana Juha Pykala, D. H. Norris 1987-6-10 1467 Humboldt 4.5 mi. N of Weitchpec, Blue Lake 838 Comment
  HSC76251  Cordylanthus tenuis subsp. viscidus Denis Kearns 1981-7-6 64 Humboldt Near Mosquito Lake 1256 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
  UC1223040  Corethrogyne filaginifolia Joseph P. Tracy 1947-7-7 17759 Humboldt mouth of (n side) Mad River Comment
  UC604617  Corethrogyne filaginifolia Joseph P. Tracy 1938-7-15 16059 Humboldt at Bucksport; Eureka 6 Comment
  HSC104440  Cornus canadensis Cheri Sanville, Bianca Hayashi Jun 2012 Humboldt North of Snow Camp Mountain Comment
  JEPS50097  Cornus canadensis Joseph P. Tracy 1923-6-24 6356 Humboldt meadow near High Prairie (Bald Mt.); Northern Coast Ranges, Bald Mt. 1066 Comment
  CAS-BOT-BC212012  Cornus nuttallii Doris K. Kildale 1926-7-25 2434 Humboldt Briceland Bridge, 1/2 west of Garberville 114 Comment
  HSC41246  Cornus nuttallii Brad Klipfel 1974-5-27 393 Humboldt Near Horse Mtn. Comment
  RSA85517  Cornus nuttallii G. R. Campbell 1954-3-24 19022 Humboldt 17.4 mi. east of jct. of hwys 101 and 299 above Blue Lake. Comment
  CAS-BOT-BC212180  Cornus sericea Joseph P. Tracy 1927-11-6 8392 Humboldt Along yager Creek, Carlotta 60 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
  UC183572  Cornus sericea subsp. sericea Joseph P. Tracy 1912-10-20 4010 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC502981  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8654 Humboldt opposite Buck Mt. (on Van Duzen R., Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  UC774995  Cornus sericea subsp. sericea Carl B. Wolf 1937-8-13 9251 Humboldt 11 mi. e. Hoopa Valley (on new rd. towards Trinity Summit); North Coast Range 1524 Comment
  UC198569 Image available Corylus californica Joseph P. Tracy 1917-9-2 4842 Humboldt Grouse Mountain Northern Coast Ranges; Grouse Mt., Humboldt Co. 1524 Comment
  UC54931  Corylus californica P. E. Goddard 1901-7-12 73 Humboldt Hupa Comment
  BLMAR230  Corylus cornuta subsp. californica Jennifer Anthony-Wheeler 1996-9-26 230 Humboldt King range, growing alng Bear creek between Wailaka & Nadelos campgrounds 548 Comment
  CAS-BOT-BC180311  Corylus cornuta subsp. californica L. B. Kildale 1926-3-26 1647 Humboldt near junction with highway, on old Fortuna road 15 Comment
  HSC98546  Corylus cornuta var. californica Cara Witte 2007-5-26 652 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  HSC5434  Cotula coronopifolia R. D. Modafferi 1965-3-14 12 Humboldt 1.4 mi. S of Trinidad on old Hwy. 101 0 Comment
  RSA246787  Cotula coronopifolia R. F. Thorne, Percy C. Everett 1965-8-8 35272 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  HSC87175  Crassula aquatica K. Grenier 1988-11-16 291 Humboldt North Spit of Humboldt Bay Comment
  SEINET13729302  Crassula aquatica Unknown 1912-6-9 3689 Humboldt Plants of Northern Coast Region of Califonia In muddy ground. ALTON, HUMBOLDT COUNTY Altitude 100 to 300 Comment
  JEPS27144  Crepis capillaris H. E. Parks August, 1941 24189 Humboldt vicinity of Trinidad Comment
  UC129417  Crepis capillaris Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5537 B Humboldt near Scotia Comment
  UCSC000834  Crepis capillaris H. L. Person 1931-7-30 s.n. Humboldt Eureka, Fieldbrook Comment
  CAS-BOT-BC291490  Crepis capillaris David D. Keck; J. Clausen 1935-6-16 3396 Humboldt Just south of Trinidad Comment
  HSC46020  Crepis capillaris Catherine Chin 1978-8-5 93 Humboldt Arcata, along 16th St., 100 yds. E of Union St. Comment
  RSA47133  Crepis capillaris Doris K. Kildale 1925-7-15 1083 Humboldt Eureka Slough. Comment
  UC905064  Crepis setosa Henry M. Pollard 1948-8-8 Humboldt roadside between Orleans and Camp Creek Comment
  RSA43684  Crepis setosa H. M. Pollard 1948-8-8 s.n. Humboldt Roadside between Orleans and Camp Creek Comment
  RSA43685  Crepis setosa H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  UC726368  Crepis vesicaria A. A. Heller 1923-7-9 13777 Humboldt near Blue Lake (5 mi from Arcata) Comment
  SEINET3875024  Crocosmia aurea Bennett, Dunn; Dziekanowski 1976-8-6 477 Humboldt Collected by Highway 101, North side of Orick.; 0 30 Comment
  HSC8629  Croton setiger D. E. Anderson 1961-9-30 1839 Humboldt Along Hwy. 299 Comment
  HSC57183  Cryptantha affinis Griswold, Butler 1979-7-10 6312 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC57947  Cryptantha affinis G. L. Clifton, Griswold 1979-7-31 11623 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  JEPS67641  Cryptantha intermedia Harley P. Chandler Jun 1901 1302 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  JEPS18415  Cryptantha milobakeri Joseph P. Tracy 1932-6-14 10141 Humboldt w of mouth of South Fork of Trinity River; North Coast Ranges 609 Comment
  UC175783  Cryptantha torreyana Joseph P. Tracy 1912-6-9 3655 Humboldt Alton Northern Coast Region 30 Comment
  UC525609  Cryptantha torreyana Joseph P. Tracy 1933-7-25 12865 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  SEINET3480723  Cuscuta salina C. C. Harris, S. K. Harris 1941-7-28 1894 Humboldt Humboldt Bay near Table Bluff, Humboldt Bay near Table Bluff, Parasitic on Salicornia ambigua Comment
  HSC3645  Cynoglossum grande Gerald T. Rood 1962-5-11 8 Humboldt Kneeland Rd., ca. 2.5 mi. W of Barry Rd. 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
  UC1222260  Cynoglossum occidentale Joseph P. Tracy 1948-8-15 18121 Humboldt on Ridge 2 mi. e. of Grove's Prairie (Trinity Summit Rd.); Trinity Summit 1524 Comment
  HSC97375  Cynosurus cristatus J. P. Smith 2005-6-11 12136 Humboldt Humboldt State University Campus, along B St. at back entrance to the Natural Resources Bldg. Comment
  UC1040573  Cynosurus cristatus L. T. Burcham 1956-7-19 341 Humboldt 1.5 mi nw Petrolia 152 Comment
  UCD60124  Cynosurus cristatus A. H. Murphy 1949-6-29 s. n. Humboldt ca. 1.5 miles north of Loleta, H. Perrots Ranch, Table Bluff. Comment
  HSC37238  Cynosurus echinatus Lon Hall 1975-6-19 406 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  CAS-BOT-BC114623  Cyperus eragrostis Joseph Prince Tracy 1937-8-3 15612 Humboldt Near Blue Lake, along Mad River. 15 Comment
  HSC95388  Cyperus eragrostis Andrea Pickart 2002-7-9 176 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  UC302157  Cypripedium californicum Joseph P. Tracy 1926-6-27 7669 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  SEINET200683  Cypripedium montanum Joseph P. Tracy 1918-5-26 4937 Humboldt Redwood Creek at foot of Grouse Mt. 610 Comment
  UC14955  Cypripedium montanum Harley P. Chandler June, 1901 1399 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC14956  Cypripedium montanum Mrs. M. H. Manning may, 1901 16 Humboldt near Hupa Comment
  JEPS35194  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt S. Fork Eel River Comment
  CSUSB1619  Cytisus monspessulanus Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  HSC14674  Cytisus scoparius W. R. Brigham 1962-5-20 20 Humboldt End of old Hwy. 101, N of Big Lagoon Rd. Comment
  SEINET2153799  Cytisus scoparius K. T. Harper 2002-1 2002 -3 Humboldt Redwood Park, near Orick. Comment
  HSC9542  Dactylis glomerata S. R. Johnson 1965-5-10 54 Humboldt 1.0 mi. N of Luffenholtz Beach Comment
  RSA126598  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E of mouth of Mad River. 30 Comment
  CAS-BOT-BC189740  Danthonia californica Joseph P. Tracy 1928-6-24 8463 Humboldt Northern Coast Ranges. Valley of South Yager Creek. 762 Comment
  UC187246  Danthonia californica var. americana Joseph P. Tracy 1906-6-24 2510 Humboldt Humboldt Hill Northern Coast Region, region about Humboldt Bay (s slope) 0 Comment
  JEPS49588  Darmera peltata Harley P. Chandler May 1901 1233 Humboldt Redwood Belt; North Coast Ranges 91 Comment
  RSA43886  Daucus carota H. M. Pollard 1948-8-7 s.n. Humboldt Near Orleans Comment
  UC642295  Daucus carota Joseph P. Tracy 1932-9-16 10796 Humboldt near mouth Mad River 30 Comment
  UCR224652  Daucus carota Dean Kelch 2007-7-25 07- 508 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  UC1197346  Daucus pusillus Joseph P. Tracy 1927-6-26 8211 Humboldt Stone Lagoon sand beach 6 Comment
  CDA38308  Daucus pusillus T. C. Fuller 1958-6-17 1904 Humboldt Zanone Ranch, Cape Mendocino. 0 Comment
  HSC101980  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 877 Humboldt Patterson Meadows 1566 Comment
  HSC24969  Delphinium decorum subsp. tracyi Elrid H. Spinas 1948-5-15 2 Humboldt Horse Mtn. Comment
  CAS-BOT-BC9026  Delphinium decorum subsp. tracyi John Rehling 1975-5-12 71 Humboldt Bald Hills, 2 miles up Williams Ridge Road. Comment
  HSC100367  Delphinium decorum subsp. tracyi J. McRae 2010-6-23 Humboldt Jones Ridge off F.S. Rd. 27N02. 1433 Comment
  HSC97643  Delphinium decorum subsp. tracyi C. Witte 2007-5-22 78 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  SEINET12099544  Delphinium hesperium J. P. Tracy 1950-1 18875 Humboldt 3 mi N of Blocksburg Comment
  CAS-BOT-BC9957  Delphinium nudicaule Duart V. Brown 1947-4-2 28 Humboldt Near Sweed Creek, Trinity River Comment
  HSC32304  Delphinium nuttallianum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5650 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC32935  Delphinium nuttallianum Thomas W. Nelson 1973-5-30 972 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  JEPS8447  Delphinium nuttallianum Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3411 Humboldt 0.5 mi w Snow Camp (ridge between Mad River and Redwood Creek); Bald Mountain ridge 1432 Comment
  JEPS23301  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  RSA168925A  Delphinium trolliifolium Joseph P. Tracy 1951-6-26 19559 Humboldt Halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UC1196338  Delphinium trolliifolium Joseph P. Tracy 1933-5-20 12269 Humboldt hillsides Northern Coast Ranges, Bear River Ridge 609 Comment
  UC1196344  Delphinium trolliifolium Joseph P. Tracy 1911-7-12 3525 Humboldt on summit between Berry's (on Redwood Creek) and Three Creeks; Northern Coast Ranges 1097 Comment
  UC1103224  Deschampsia danthonioides Joseph P. Tracy 1908-6 2753 Humboldt opposite Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  UC526857  Deschampsia danthonioides Joseph P. Tracy 1932-7-14 10538 Humboldt Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  SEINET181183 Image available Deschampsia elongata Bassett Maguire, R Maguire; CB Maguire 1934-6-8 15070 Humboldt Bolling Grove State Park ; Under redwoods Comment
  SEINET3927555  Deschampsia elongata J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Hoopa quad. Envorons of Mud Spring. Big Hill Road (F. S. 8N01).; 0 1524 Comment
  UC35058  Dicentra formosa Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  BLMAR696  Dicentra formosa Jennifer Wheeler 2011-5-23 696 Humboldt Lacks Creek, Bair Rd. about one mile from Hwy. 300 426 Comment
  RSA433570  Dicentra formosa subsp. formosa Charlotte M. Hoak 1931-7-15 s.n. Humboldt Trinidad Comment
  POM126098  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1900-8-26 925 Humboldt At Eureka 0 Comment
  RSA10045  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC413903  Dichelostemma X venustum Lee Harris Jun 1930 Humboldt Comment
  UC15031  Dichelostemma capitatum P. E. Goddard 1901-7-8 33 Humboldt Hupa Comment
  CAS-BOT-BC483664  Dichelostemma capitatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC3035  Dichelostemma ida-maia Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC74700  Dichelostemma ida-maia Gail Newton 1981-8-5 2371 Humboldt Near Bug Creek, E Fork 914 Comment
  RSA120194  Dichelostemma ida-maia S. S. Tillett 1956-7-6 622 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  SEINET202731  Dichelostemma ida-maia Joseph P. Tracy, A. H. Murphy 1951-6-26 19568 Humboldt Vicinity of Twin Lakes and Snow Camp. Comment
  CAS-BOT-BC501024  Dichelostemma ida-maia Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC501029  Dichelostemma ida-maia Peter H. Raven; R. Snow 1958-7-20 13638 Humboldt 2.0 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Mountain Comment
  SEINET3885674  Dichelostemma pulchellum James P. Smith 1973-5-5 6485 Humboldt Roadside and streamside along Cook and Green Pass.; 0 Comment
  SEINET4095000  Digitalis purpurea O. M. Clark 1932-1 5315 Humboldt South Eureka. Comment
  UC1409176  Dipsacus fullonum Robert F. Thorne and P. Everett 1965-8-9 35282 Humboldt 2.5 mi n Arcata Comment
  UC535769  Disporum hookeri Eleanor Armstrong 1934-5-27 Humboldt Richardson Grove Comment
  RSA46820  Disporum smithii Doris K. Kildale 1926-3-26 1636 Humboldt Old Kneeland road. Comment
  HSC90915  Distichlis spicata Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, Saltmarsh trail. Comment
  SEINET199554 Image available Distichlis spicata Joseph P. Tracy 1923-1 6286 Humboldt Mouth of Davis Creek. Comment
  CAS-BOT-BC401537  Drosera rotundifolia Doris K. Kildale 1929-8-5 8772 Humboldt Big Lagoon Comment
  CAS-BOT-BC159611  Drymocallis glandulosa var. glandulosa Carl B. Wolf 1937-6-19 8908 Humboldt Van Duzen River at Dunns Mill, 5 mi. below Bridgeville 91 Comment
  UC12540  Drymocallis glandulosa var. wrangelliana C. C. Marshall 1888-1 Humboldt Comment
  HSC44564  Drymocallis hansenii Brad Klipfel 1973-7-15 184 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC62809  Dryopteris expansa Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  CAS-BOT-BC428297  Dudleya farinosa Doris K. Kildale 1927-6-25 3544 Humboldt Shelter Cove. Comment
  HSC26296  Dudleya farinosa T. O. Osborne 1970-9-16 39 Humboldt Blank Rock, 1/4 mi. W Trinidad Head Comment
  HSC26463  Dudleya farinosa T. O. Osborne 1970-7-18 21 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  CAS-BOT-BC197063  Echinochloa crus-galli Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1145168  Echinochloa crus-galli Joseph P. Tracy 1938-8-14 16115 Humboldt Trinity River Valley near the South Fork 182 Comment
Read comments
Jul 18 2012
  UC1100621  Eleocharis acicularis Malcolm A. Nobs and S. Galen Smith 1949-8-9 1243 Humboldt town of Blue Lale Mad River (marshy pond on s side) Comment
  UC213005  Eleocharis bella Joseph P. Tracy 1920-8-15 5373 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 152 Comment
  UC666917  Eleocharis bella Joseph P. Tracy 1935-7-27 14299 Humboldt Trinity Summit, McKay Prairie 1584 Comment
  UC666879  Eleocharis pachycarpa Joseph P. Tracy 1935-6-8 13947 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon) 3 Comment
  CDA38999  Eleocharis pachycarpa Gordon Leppig 1997-6-19 449 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  CAS-BOT-BC112660  Eleocharis parvula Robert F. Thorne; P. Everett 1965-8-9 35342 Humboldt along Hwy 101, ca 3 mi N of Eureka along roadside. 1 Comment
  RSA10130  Elymus X hansenii Joseph P. Tracy 1930-7-19 9054 Humboldt South Fork Mountain; open glades long summit near Blake Lookout 1738 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
  HSC65112  Elymus glaucus J. P. Smith, Steve Selva 1970-6-14 3847 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC70405  Elymus glaucus M. A. Baker 1980-6-7 1840 Humboldt Near Ammon Creek 732 Comment
  UCD61906  Elymus glaucus R. Tofsrud 1948-9-1 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UCD62266  Elymus glaucus August L. Hormay 1932-5-12 Humboldt Bull Creek Road. Comment
  CAS-BOT-BC203471  Elymus glaucus subsp. glaucus Joseph P. Tracy 1935-7-21 14119 Humboldt Mouth of Bremer Creek. Trinity River Valley, at Willow Creek 152 Comment
  UC526790  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  HSC73480  Elymus multisetus Gail Newton 1980-7-11 1327 Humboldt Near Red Mtn. 1341 Comment
  UC526849  Elymus multisetus H. E. Parks and Joseph P. Tracy 1934-7-6 11141 Humboldt Iaqua Northern Coast Ranges 609 Comment
  CAS-BOT-BC204330  Elymus trachycaulus subsp. trachycaulus David D. Keck 1948-7-1 5969 Humboldt South side of Big Lagoon Comment
  JEPS31518  Epilobium brachycarpum Joseph P. Tracy 1933-8-6 12942 Humboldt French Camp Ridge 1066 Comment
  UC183699  Epilobium brachycarpum Joseph P. Tracy 1912-7-26 3827 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  POM225520  Epilobium brachycarpum P. A. Munz 1936-8-13 14381 Humboldt 10 miles west of Willow Creek. Comment
  UCD105926  Epilobium ciliatum subsp. glandulosum J. M. Tucker 1948-9-3 1858 Humboldt Clear Lake, near junction of Friday Ridge Road and Horse Mountain-Grouce Mountain Road. Comment
  UC1951301  Epilobium ciliatum subsp. watsonii Robert F. Thorne and P. Everett 1965-8-5 35153 Humboldt Samoa Dunes. Comment
  HSC38333  Epilobium ciliatum subsp. watsonii Peter Sorensen 1976-7-14 Humboldt N Spit of Humboldt Bay, S of Samoa in the vicinity of Humboldt Co. Airport Comment
  UC902168  Epilobium densiflorum Joseph P. Tracy 1942-7-18 17279 Humboldt along ditch in field Garberville 152 Comment
  RSA181880  Epilobium foliosum Joseph P. Tracy 1928-5-6 8430 Humboldt Northern Coast Ranges: Trinity River Valley, at Willow Creek 152 Comment
  HSC55074  Epilobium hallianum G. L. Clifton, Griswold 1979-7-31 11675 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC32934  Epilobium minutum Thomas W. Nelson, James Nelson 1973-5-28 950 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC75459  Epilobium oregonense J. O. Sawyer 1980-7-18 3586 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC505110  Epilobium oregonense Joseph P. Tracy 1932-7-16 10611 Humboldt meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  POM134801  Epilobium septentrionale Carl Duncan 1920-9-22 s.n. Humboldt Hoopa Indian Reservation, Hoopa Valley Comment
  HSC46006  Equisetum hyemale subsp. affine J. P. Smith 1971-10-9 4996 Humboldt Banks and flood plain of the Mad River above the fish hatchery. 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
  CAS-BOT-BC57794  Equisetum telmateia Carl B. Wolf 1927-8-28 1181 Humboldt Salt MarshEureka Bay, on road to Arcata. Comment
  HSC882  Equisetum telmateia subsp. braunii D. E. Anderson 1962-2-10 1920 Humboldt 1.5 mi. S of Trinidad Comment
  POM281806  Equisetum telmateia var. braunii Lyman Benson 1928-7-9 824 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  SEINET200658 Image available Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Damp sand bar along river Trinity River Valley at Willow Creek 152 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
  HSC98862  Eremogone congesta var. congesta Cara Witte 2008-7-30 961 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  HSC102576  Eremogone congesta var. subcongesta M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1563 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UCD117422  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt N. slope Humboldt Hill, Eureka. Comment
  HSC97978  Erigeron aliceae Cara Witte 2007-7-8 449 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  SEINET11851472  Erigeron annuus J. P. Tracy 1949-1 18585 Humboldt Eureka Comment
  UCSB30605  Erigeron canadensis Edwards, David 1974-7-30 Humboldt In NW corner of Uniontown Shopping Center at the corner of 'F' St. and 7th St., Arcata 18 Comment
  RSA168813  Erigeron foliosus var. confinis Joseph P. Tracy 1950-8-8 19291 Humboldt Croghan Hole, on Trinity Summit 1677 Comment
  CDA4916  Erigeron glaucus Gordon Leppig 1998-6-22 840 Humboldt Dry Lagoon State Park, coastal sand dune between ocean and Dry Lagoon. Comment
  CDA4961  Erigeron glaucus T. C. Fuller 1961-9-28 7053 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC5525  Erigeron glaucus D. E. Anderson 1961-8-25 1755 Humboldt 1.5 mi. S of Trinidad Comment
  HSC104065  Erigeron maniopotamicus John McRae 2009-6-25 Humboldt Six Rivers National Forest; along FS Rd. 1N08 1280 Comment
  CAS-BOT-BC214590  Erigeron philadelphicus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC39180  Erigeron philadelphicus D. E. Anderson, J. P. Smith 1971-6-28 - 1221 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  HSC5526  Erigeron philadelphicus W. K. Parks Jun 1932 1381 Humboldt Trinidad Comment
  UC594159  Erigeron philadelphicus var. philadelphicus S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3428 Humboldt nw slopes Buck Mountain 822 Comment
  UC1199400  Erigeron strigosus var. septentrionalis Joseph P. Tracy 1935-7-9 14057 Humboldt opposite Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC300281  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt North Coast Ranges. Klamath River 243 Comment
  HSC13517  Eriodictyon californicum Paul Shields May 1955 Humboldt 7 mi. W of Hoopa Comment
  HSC74726  Eriogonum compositum Gail Newton 1981-7-23 2275 Humboldt Near Bug Creek Butte 1494 Comment
  HSC74751  Eriogonum compositum Gail Newton 1981-7-10 2220 Humboldt Near Board Camp Butte 1494 Comment
  HSC99535  Eriogonum compositum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 200 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1829 Comment
  UCR37906  Eriogonum compositum D. K. Imper 1982-7-2 1411 Humboldt Near Connely Creek, N Fork 1493 Comment
  CAS-BOT-BC259181  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River Comment
  UC665682  Eriogonum latifolium H. E. Parks August,1941 24198 Humboldt sand dunes, Little River Little River Comment
  HSC26917  Eriogonum latifolium Brad Klipfel 1973-7-30 220 Humboldt Samoa Rd. near Mad River Slough Comment
  RSA393623  Eriogonum latifolium Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  CAS-BOT-BC259542  Eriogonum luteolum var. luteolum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  CAS-BOT-BC261490  Eriogonum nudum var. nudum A. A. Heller 1924-7-20 13863 Humboldt Along the Eel River at Phillipsville Comment
  CAS-BOT-BC261495  Eriogonum nudum var. nudum Harley P. Chandler 1901-6-1 1491 Humboldt Klamath River 304 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
  RSA178589  Eriogonum nudum var. nudum Joseph P. Tracy 1950-8-20 19320 Humboldt Along the Klamath River at 'Big Bar', just above Slate Creek 122 Comment
  RSA46699  Eriogonum nudum var. nudum Doris K. Kildale 1927-6-25 3582 Humboldt Ettersburg Comment
  UC162628  Eriogonum nudum var. nudum Joseph P. Tracy 1911-7-4 3294 Humboldt along Willow Creek, near its mouth N. Coast Ranges, Willow Creek (Tributary of Trinity River) 243 Comment
  CAS-BOT-BC261721  Eriogonum nudum var. oblongifolium A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie Comment
  HSC17450  Eriogonum nudum var. oblongifolium D. E. Anderson 1962-7-14 2254 Humboldt About 3 mi. E of Kneeland Comment
  POM165553  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1918-7-6 5044 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC774994  Eriogonum umbellatum var. dumosum Carl B. Wolf 1937-8-13 9221 Humboldt 8 mi e Hoopa Valley (on new road towards Trinity Square); North Coast Range 1219 Comment
  UC672897  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1933-7-25 12881 Humboldt Grouse Mountain 1524 Comment
  HSC32327  Eriophyllum lanatum var. achilleoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5668 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC97922  Eriophyllum lanatum var. achilleoides Cara Witte 2007-6-19 299 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  JEPS34590  Eriophyllum lanatum var. achilleoides W. L. Jepson 1921-8-11 9417 Humboldt Big Lagoon Comment
  JEPS34646  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1921-8-12 5934 Humboldt Big Lagoon Comment
  UC1223133  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1950-5-24 18696 Humboldt Cummings Post Office Comment
  UC302292  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1926-6-18 7607 Humboldt Humboldt Hill Northern Coast Region, around Humboldt Bay, Humboldt Hill 152 Comment
  UC1199143  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1938-6-20 15972 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC129579  Eriophyllum lanatum var. lanceolatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5711 Humboldt Hoopa Valley Comment
  BLMAR818  Eriophyllum staechadifolium Madeleine Hassett 2017-9-9 818 Humboldt King Range, Windy point, down the old road/trail to Punta gorda Lighthouse 5 Comment
  HSC100406  Eritrichium torreyi Carl C. Marshall 1885-1 5 Humboldt No data. Comment
  UC203994  Erodium botrys Joseph P. Tracy 1918-7-5 5026 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC183762  Erodium cicutarium Joseph P. Tracy 1913-6-14 4130 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC8479  Erodium cicutarium R. J. Vernimen 1963-2-17 8 Humboldt Clam Beach Lagoon, along railroad tracks Comment
  HSC57666  Erysimum capitatum var. capitatum G. L. Clifton, Terry Griswold 1979-7-25 10849 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CAS-BOT-BC54920  Erysimum menziesii Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  HSC57884  Erysimum perenne Walter Overton, Marvin Butler 1979-7-31 11428 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  SDSU19195  Erythronium californicum Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3005 Humboldt Six Rivers National Forest. Adjacent to Titlow Hill Road, ca. 4.6 miles south of junction with Hwy 299 (at Berry Summit), southeast of intersection with dirt road to Horse Mtn. Ca. 0.6 mile south of Horse Mtn. Radio Tower. 1437 Comment
  UC1134592  Erythronium californicum R. Stahelin 1933-5-17 Humboldt Kneeland Prairie China Flat Quadrangle Comment
  HSC70227  Erythronium grandiflorum subsp. grandiflorum M. A. Baker 1980-6-8 1890 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC502808  Erythronium oregonum Lena E. Bowley 1941-4-1 s.n. Humboldt unspecified Comment
  HSC26879  Eschscholzia californica Clifton Raymond Chesbrough 1973-6-19 86 Humboldt 1/2 mi. S of Trinidad along the coast Comment
  HSC26453  Eschscholzia californica T. O. Osborne 1970-7-18 3 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  JEPS51802  Eschscholzia californica Joseph P. Tracy 1933-7-16 12793 Humboldt South Fork Mt. North Coast Ranges (top of w slope, near county line) 1676 Comment
  HSC57686  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-7-25 10904 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC58379  Eucephalus ledophyllus Terry Griswold 1979-7-25 10759 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1814 Comment
  HSC103834  Eucephalus tomentellus Haggard 2000-8-22 71957 Humboldt Along US Forest Service Rd. 1, southeast of Blue Lake Comment
  JEPS20485  Euchiton gymnocephalus Joseph P. Tracy 1935-7-20 14110 Humboldt near Blue Lake (on Trinity Highway); North Coast Ranges, Trinity Highway 274 Comment
  UC1607850  Euchiton gymnocephalus Parks and Tracy 1932-7-30 1133 Humboldt Trinidad; Camp Twenty One 182 Comment
  UC562613  Euchiton gymnocephalus Joseph P. Tracy 1936-3-22 14784 Humboldt 4 mi se Korbel (near Angels Ranch); North Coast Ranges 304 Comment
  CAS-BOT-BC206801  Euonymus occidentalis Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek near Orleans Comment
  UC18050  Euonymus occidentalis var. occidentalis C. C. Marshall 1888-1 Humboldt Mad R. Mts. Comment
  CAS-BOT-BC312208  Eurybia radulina Doris K. Kildale 1929-8-4 8780 Humboldt Mattole River at Union Mattole Comment
  UC180190  Eurybia radulina Joseph P. Tracy 1914-9-6 4619 Humboldt Bald Mountain, between High Prairie and Snow Camp Bald Mountain 1066 Comment
  HSC97536  Euthamia occidentalis Ivy Watson 2008-9-17 18 Humboldt Mad River Park on West End Rd., near pumping station, 200 ft. from the water 8 Comment
  UC70822  Festuca altaica Joseph Burtt Davy and Walter C. Blasdale 1899-6-22 5746 Humboldt Trinity Summit Comment
  HSC41223  Festuca californica Robert M. Specht 1976-7-24 512 Humboldt 4 mi S of Hwy. 299 on Titlow Rd. to Horse Mtn. Comment
  HSC98591  Festuca californica var. californica Cara Witte 2007-6-14 281 Humboldt Along National Forest 1 on Kinsey Ridge. 1/2 mile north of White Oak Opening. 1258 Comment
  CAS-BOT-BC282499  Festuca elmeri Joseph P. Tracy; H. E. Parks 1934-6-27 11045 Humboldt Horse Mountain 1524 Comment
  BLMAR13  Festuca idahoensis Brad Barr June, 1982 13 Humboldt King range, HJ ridge Comment
  CAS-BOT-BC278422  Festuca idahoensis Joseph P. Tracy 1930-6-8 8729 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  UC535634  Festuca idahoensis Joseph P. Tracy 1932-7-12 10447 Humboldt Corral Ranch Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC278810  Festuca occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC41382  Festuca occidentalis J. O. Sawyer 1970-6-27 2304 Humboldt Site 318. 1494 Comment
  CAS-BOT-BC278961  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N. E. of Capetown 152 Comment
  UC180345  Festuca rubra Joseph P. Tracy 1913-6-13 4097 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC187116  Festuca rubra Joseph P. Tracy 1900-7-4 894 Humboldt Humboldt Bay Comment
  UC526867  Festuca rubra Joseph P. Tracy 1927-6-8 8112 Humboldt Trinidad Northern Coast Region 60 Comment
  UCD66354  Festuca rubra H. S. Yates 1936-6-16 5675 Humboldt 1 mile northeast of Samoa. 3 Comment
  CAS-BOT-BC282516  Festuca subbiflora W. R. Dudley 1899-6-20 s.n. Humboldt Bull Creek and Eel River Comment
  JEPS75445  Festuca subuliflora W. L. Jepson 1934-5-7 16710 Humboldt Buckeye Prairie, Bull Creek Comment
  HSC39972  Fragaria X ananassa Linda M. Barker 1976-3-22 1335 Humboldt 3 mi. W of Arcata Comment
  HSC40975  Fragaria X ananassa Linda M. Barker 1976-6-14 1590 Humboldt 3 mi. W of Arcata Comment
  CHSC23878  Fragaria chiloensis A. R. Morrison 1974-4-27 Humboldt Throughout understory along immediate coastal cliffs ca. 2 mi. n of Trinidad. Comment
  CHSC32839  Fragaria chiloensis Lora Anderson 1981-4-26 7 Humboldt Ca. 5 m n on Clam Beach Rd. 0.5 km e of Hwy. 101. 9.5 mi n of Arcata, along roadsides. 0 Comment
  CAS-BOT-BC453516  Fragaria chiloensis W. R. Dudley 1899-6-1 s.n. Humboldt Pennisula of Eureka Comment
  HSC99402  Fragaria vesca K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 51 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCSB24343  Frangula californica Constance, Lincoln 1934-6-13 Humboldt East bank of south fork Eel River, North Dyerville Flat, just below Redwood Highway. Comment
  CAS-BOT-BC59951  Frangula purshiana Doris Kildale Gillespie 1932-9-1 4205 Humboldt Eureka, on S St. 1 block no. of Henderson St. 30 Comment
  CAS-BOT-BC59992  Frangula purshiana Doris K. Kildale; J. W. Gillespie 1929-6-25 8394 Humboldt Pive's Pasture, Eureka. Comment
  CAS-BOT-BC59994  Frangula purshiana Joseph P. Tracy 1948-8-15 18152 Humboldt Trinity Summit. On ridge 2 mi. e. of Grove's Prairie. 1524 Comment
  HSC18416  Frangula purshiana P. Markle 1962-5-24 61 Humboldt Edge of 18th St. in Arcata 30 Comment
  POM130724  Frasera albicaulis var. nitida H. P. Chandler 1901-06 1486 Humboldt Klamath River. Comment
  SEINET5012890  Fraxinus latifolia Unknown 1995-4-26 1387 Humboldt Six Rivers Ntl Forest. Hwy 36, 2km W of town. Comment
  UC1197627  Fritillaria purdyi Joseph P. Tracy 1938-6-13 15918 Humboldt Grouse Mountain, at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  HSC8377  Fumaria officinalis Wm. F. Bowman 1968-11-20 Humboldt 4 mi. SE of Arcata, along Jacoby Creek. Comment
  HSC99414  Galium aparine K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 63 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
  HSC70981  Galium bolanderi Gail Newton 1980-7-22 1664 Humboldt Near Devils Backbone 1554 Comment
  UC1196105  Galium californicum subsp. californicum Joseph P. Tracy 1925-8-9 7228 Humboldt opposite Miranda; Salmon Creek 91 Comment
  UC1225914  Galium divaricatum Joseph P. Tracy 1946-7-13 17614 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  JEPS6683  Galium muricatum Lincoln Constance 1934-5-23 602 Humboldt se slope of mt. above Look Prairie; South Fork Eek River, Bull Creek Region 365 Comment
  JEPS6616 Image available Galium nuttallii Joseph P. Tracy 1924-8-10 6816 Humboldt Blue Slide Van Duzen River; Blue Slide, on Van Duzen River, Humboldt Co. 91 Comment
  JEPS14011  Galium parisiense Roxana S. Ferris 1955-7-11 12972 Humboldt betw. Willow Creek and Blue Lake (summit of US Hwy 299) Comment
  HSC61873  Galium parisiense Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  HSC61722  Galium porrigens var. porrigens Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  HSC70361  Galium porrigens var. porrigens Gail Newton 1980-6-7 142 Humboldt Near Brush Mtn. 1128 Comment
  POM60798  Galium trifidum Joseph P. Tracy 1906-8-18 2542 Humboldt Eureka. 0 Comment
  UC1196084  Galium trifidum var. pusillum Joseph P. Tracy 1935-7-27 14303 1/2 Humboldt McKay Prairie Trinity Summit 1584 Comment
  HSC53836  Galium triflorum Griswold, Butler 1979-7-10 6286 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC58074  Galium triflorum G. L. Clifton, Griswold 1979-8-1 11968 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC5691  Gamochaeta ustulata Jerry Parker 1968-10-7 96 Humboldt Clam Beach Comment
  UCD132373  Gamochaeta ustulata Linda M. Barker 1976-7-5 1539 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC188535  Garrya elliptica H. E. Parks 1933-2-1 4287 Humboldt Trinidad, on cliffs near ocean Comment
  HSC67592  Garrya elliptica J. P. Smith 1971-10-6 4961 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS66720  Garrya elliptica Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  RSA392970  Garrya elliptica Maude Minthorn s.n. Humboldt Ferndale. Comment
  UC1541254  Garrya elliptica Harold E. Parks Mar 1933 1403 Humboldt near Trinidad Comment
  CAS-BOT-BC182169  Garrya fremontii Henry M. Pollard 1946-9-1 s.n. Humboldt Near Willow Creek, Orleans region Comment
  HSC43109  Garrya fremontii Brad Klipfel 1975-5-30 650 Humboldt Horse Mtn. Comment
  HSC72925  Garrya fremontii Gail Newton 1980-7-22 1679 Humboldt Near Devils Backbone 231 Comment
  HSC97975  Garrya fremontii Cara Witte 2007-7-8 425 Humboldt Board Camp Mountain. Pack trail 4N26. 1/2 mile from Tri Board Camp intersection. 1536 Comment
  RSA12458  Gastridium phleoides C. B. Wolf 1934-6-30 5835 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  HSC76327  Gaultheria ovatifolia Denis Kearns 1981-7-6 63 Humboldt Near Mosquito Lake 1122 Comment
  CAS-BOT-BC58907  Gaultheria shallon Carl B. Wolf 1931-8-29 1242 Humboldt Near summit of Orick Hill on road to Weithchpec. 304 Comment
  CAS-BOT-BC58921  Gaultheria shallon A. A. Heller 1923-7-10 13788 Humboldt Between Scotia and Pepperwood Comment
  CHSC27892  Gaultheria shallon Susan Perkins 1978-4-25 41 Humboldt Redwood Park, e end of 13th St., Arcata, .8 mi e of City Hall. 7 mi nne of Eureka. 48 Comment
  HSC22500  Gaultheria shallon R. D. Modafferi 1965-4-8 29 Humboldt 2.1 mi. N of Trinidad on Trinity St. 305 Comment
  OBI14456  Gaultheria shallon H. E. McMinn 1931-6-27 2533 Humboldt Summit above Weitchpec Comment
  HSC55075  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11684 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC55150  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-8-1 12087 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  POM223145  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1930-7-16 9051 Humboldt North Coast Ranges: South Fork Mountain, open glades along summit near Blake lookout 1738 Comment
  UC144065  Gayophytum humile Joseph P. Tracy 1908-6 2688 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  POM214929  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  UC35402  Gayophytum humile Chesnut and Drew 1888-7-20 Humboldt S. Fork Mt. Comment
  CAS-BOT-BC208029  Genista monspessulana C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC14678  Genista monspessulana S. R. Johnson 1965-3-28 34 Humboldt 2.5 mi. N of Luffenholtz Beach Comment
  RSA13517  Gentiana newberryi H. E. Parks 1931-07 1052 Humboldt Bishop Pine Lodge, Trinidad. 76 Comment
  JEPS24351  Gentiana plurisetosa Joseph P. Tracy 1919-9-22 5276 Humboldt Trinity Summit 1828 Comment
  HSC41183  Gentiana sceptrum Robert M. Specht 1976-10-6 546 Humboldt S shore of Big Lagoon on E side of Hwy. 101 Comment
  UC1197403  Geranium dissectum Joseph P. Tracy 1909-7-31 3043 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC275493  Geranium dissectum Joseph P. Tracy 1925-5-17 6977 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC8650  Geranium dissectum Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  HSC59668  Geranium molle George Kirn 1977-10-15 Humboldt Eureka, Q and 3rd St. 12 Comment
  HSC8653  Geranium molle Jack Rockwell 1962-5-4 55 Humboldt 488 Comment
  SEINET200730  Gilia capillaris Joseph P. Tracy 1908-7-30 2920 Humboldt Northwest slope of Buck Mtn. 1219 Comment
  UC52536  Gilia capitata subsp. capitata Mrs. M. H. Manning Humboldt Hupa Comment
  SD42478  Gilia capitata subsp. chamissonis Carl B. Wolf 1937-8-11 8901 Humboldt Fleener creek, 1/2 mi. South of Centerville 46 Comment
  CAS-BOT-BC226146  Gilia capitata subsp. pacifica J. P. Tracy; H. E. Parks 1930-5-25 0793 Humboldt Near Bridgeville Comment
  RSA21031  Gilia capitata subsp. pacifica C. B. Wolf 1937-8-11 8901 Humboldt Fleener Creek, 0.5 mile south of Centerville. 46 Comment
  UC1197926  Gilia capitata subsp. pacifica Joseph P. Tracy 1930-5-25 8725 Humboldt Bridgeville 198 Comment
  HSC16993  Gilia millefoliata Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  UC1197909  Gilia millefoliata Joseph P. Tracy 1937-6-5 15329 Humboldt Little River Beach 6 Comment
  UC23861  Gilia tricolor subsp. tricolor C. C. Marshall 1888-1 Humboldt Comment
  JEPS37565  Glebionis segetum W. L. Jepson and W. W. Mott 1903-6 2225 Humboldt bluff tops overlooking sea at Caspar 18 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
  HSC70404  Glyceria X occidentalis M. A. Baker 1980-6-7 1836 Humboldt Near Ammon Creek. 732 Comment
  SEINET201843 Image available Glyceria elata H. K. Sharsmith, F Chisaki 1959-8-22 4756 Humboldt Happy Camp just over Trinity County line 914 Comment
  BLMAR713  Glyceria striata Clara Sander 2005-7-13 713 Humboldt Jacoby creek, growing along trail 36 Comment
  HSC40378  Gnaphalium palustre Linda M. Barker 1976-8-2 1673 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC57969  Gnaphalium palustre G. L. Clifton, Griswold 1979-7-31 11692 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA168835  Gnaphalium sphaericum Joseph P. Tracy 1942-7-26 17299 Humboldt On the Redwood House road at old mill site, 1 mile N of Redwood House. Valley of South Yager Creek. 457 Comment
  SEINET8726298 Image available Godetia amoena S. K. Harris 1936-1 s.n. Humboldt On south side of Domingo Gulch on road from Petrolia to Cape Mendocino, 30 Comment
  HSC54861  Goodyera oblongifolia G. L. Clifton, Griswold 1979-7-25 10762 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1196372  Goodyera oblongifolia Joseph P. Tracy 1932-7-17 10660 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC179961  Goodyera oblongifolia Joseph P. Tracy 1914-9-6 4624 Humboldt between High Prairie and Snow Camp (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  JEPS4221  Gratiola ebracteata J. P. Tracy 1908-6-7 2618 Humboldt Butler Valley , Butler Valley (Mad River) 152 Comment
  CAS-BOT-BC304751  Grindelia hirsutula Edward Lee 1934-8-17 1148 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  JEPS41894  Grindelia hirsutula W. L. Jepson 1936-8-17 17924 Humboldt 2.5 mi s of Fields Landing (flats) Comment
  JEPS94281  Grindelia hirsutula Vernon Oswald and Lowell Ahart 1997-9-4 8845 Humboldt Big Lagoon County Park at the sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  UC1525546  Grindelia hirsutula John L. Strother 1986-10-12 1355 Humboldt on Samoa Blvd. (rte 255) w of Arcata (nw side of Arcata Bay (Humboldt Bay) opposite Emmerson Div., Sierra Pacific Inc., roadside above saltmarsh); Humboldt Bay, Arcata Bay Comment
  BLMAR308  Grindelia stricta Jennifer Anthony-Wheeler 2002-7-1 308 Humboldt South Spit 6 Comment
  UC525574  Hackelia micrantha Joseph P. Tracy 1932-7-11 10421 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC582620  Hackelia setosa Joseph P. Tracy 1937-7-24 15510 Humboldt 2 mi se of Devil's Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC306612  Helenium bigelovii L. B. Kildale 1930-8-10 10532 Humboldt Snow Camp, head of Redwood Creek Comment
  UC1223096  Helenium bigelovii Joseph P. Tracy 1950-7-25 19071 Humboldt McKay Camp Comment
  SD42503  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. Comment
  UC1222895  Helenium bolanderi Joseph P. Tracy with H. E. Parks 1950-7-16 11686 Humboldt 2 mi n Trinidad (Park's place) Comment
  CAS-BOT-BC309413  Helenium puberulum E. R. Johnson 1929-8-1 1431 Humboldt Along the Redwood Highway, south of Eureka 30 Comment
  RSA695692  Helenium puberulum J. R. Bruff 1937-8-17 943 Humboldt Richardson Grove. Comment
  UC1223171  Helminthotheca echioides Joseph P. Tracy 1948-8-8 18098 Humboldt 2 mi w Bridgeville Comment
  UC204746  Helminthotheca echioides Joseph P. Tracy 1918-7-1 4969 Humboldt southwestern slopes fronting the ocean three mi s of point Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC97470  Hemizonella minima Cara Witte 2007-5-23 92 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UC175088  Hemizonia congesta subsp. clevelandii T. S. Brandegee 1898-7-1 Humboldt Mad River Comment
  UC495620  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1927-5-8 7983 Humboldt vicinity of Garberville 121 Comment
  UC1197368  Heracleum lanatum Joseph P. Tracy 1948-9-12 18217 Humboldt meadow at Box Camp Trinity Summit; , Box Camp 1463 Comment
  HSC76200  Heracleum maximum Overton, Butler 1979-8-2 12523 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC582500 Image available Hesperevax acaulis var. robustior Joseph P. Tracy 1932-5-1 9867 Humboldt vicinity of Garberville 121 Comment
  HSC39822  Hesperevax sparsiflora var. brevifolia R. Becking 1976-5-2 Humboldt Along Samoa peninsula at the Samoa airstrip at Fairhaven Comment
  SEINET10460654  Heterocodon rariflorum Tracy TRACY 2831 Humboldt BUCK MTN. Comment
  UC666828  Heteromeles arbutifolia Joseph P. Tracy 1937-7-11 15414 Humboldt Garberville 152 Comment
  UC620692  Heterotheca oregona var. rudis S. K. Harris 1938-8-24 881 Humboldt near Fernbridge (sand of Eel River); Eel River Comment
  HSC48848  Hieracium albiflorum Brad Klipfel 1973-7-15 204 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC5825  Hieracium albiflorum David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  UC582410  Hieracium greenei Joseph P. Tracy 1935-7-29 14340 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC1103738  Hierochloe occidentalis Joseph P. Tracy 1942-5-16 17348 Humboldt Garberville 152 Comment
  RSA0016045  Hippuris vulgaris Robert F. Thorne, P. C. Everett 1965-8-9 35344 Humboldt Along Hwy 101 about 3 miles N of Eureka. 2 Comment
  HSC59684  Hirschfeldia incana George Kirn 1977-10-15 Humboldt Eureka, Q and 3rd St. 12 Comment
  POM232313  Holcus lanatus I. L. Wiggins 1930-6-25 4614 Humboldt Sand dunes 2 miles north of Samoa. Comment
  RSA44462  Holcus lanatus Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans. Comment
  UCR32150  Holodiscus discolor David J. Keil 1983-7-1 17262 Humboldt North Coast Range, Bull Creek Flats Road, c. 8 mi west of junction US 101 Comment
  UCSC000355  Holodiscus discolor H. L. Person 1932-6-25 s.n. Humboldt E. of Korbel Korbel - Eureka Comment
  HSC75482  Hordeum brachyantherum J. O. Sawyer 1980-7-18 3629 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  CAS-BOT-BC281263  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Northern Coast Region. Trinidad 9 Comment
  HSC101474  Hordeum brachyantherum subsp. brachyantherum J. P. Smith 2010-5-29 12887 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  UC1103747  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1927-7-16 8251 Humboldt mouth of Elk River 3 Comment
  HSC37518  Hordeum depressum J. D. Ackerman, A. M. Montalvo 1975-8-9 630 Humboldt Arcata, Hwy. 101 and Giuntoli Ln. Comment
  HSC45256  Hordeum vulgare M. Alcasas 1978-5-27 109 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  JEPS44551  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  UC1222317  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1951-6-26 19597 Humboldt n side Board Camp Mountain (extreme head of Redwood Creek) Comment
  CAS-BOT-BC537895  Horkelia tridentata var. flavescens Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2613 Humboldt Larabee Valley, near Eureka 762 Comment
  HSC74130  Horkelia tridentata var. flavescens R. York 1980-5-23 616 Humboldt Near Buck Mtn. 1524 Comment
  CAS-BOT-BC206076  Hosackia crassifolia Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  UC213008  Hydrophyllum tenuipes Joseph P. Tracy 1920-5-18 5318 Humboldt Bull Creek Northern Coast Ranges (along Eel River from South Fork to Scotia) 60 Comment
  HSC102581  Hypericum anagalloides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1568 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1198406  Hypericum formosum var. scouleri Joseph P. Tracy 1932-9-16 10799 Humboldt Dow's Prairie Northern Coast Ranges, Dow's Prairie 60 Comment
  UC1137469  Hypericum perforatum Hubert Person 1941-5-24 25323 Humboldt just n. Garberville; Briceland Quad., CA Forest & Range Expt. Station 152 Comment
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Sep 12 2009
  UC179926  Hypericum perforatum Joseph P. Tracy 1914-9-7 4618 Humboldt On Bald Mt. near Bald Mt. House; Northern Coast Ranges, Bald Mt. 914 Comment
  UC668257  Hypericum perforatum Joseph P. Tracy 1935-7-27 14274 Humboldt along trail Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  POM311762  Hypericum perforatum Karen Hosterman 1957-8-29 1109 Humboldt 7 miles from Orleans, within 1 mile of junction of Klamath Road and Red Cap Creek. 114 Comment
  SEINET11855591  Hypochaeris glabra J. P. Tracy 1948-5-31 18020 Humboldt William Perry place, Dobbyn Creek 152 Comment
  UC32896  Hypochaeris radicata Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5490 Humboldt near Camp Grant; North-Western California Comment
  HSC96744  Iliamna latibracteata M. Mesler 2006-7-28 625 Humboldt E of Grouse Mtn., 2.1 mi. from NF 1, below road. 1448 Comment
  SEINET3225680 Image available Iliamna latibracteata Joseph P. Tracy 1926-6-12 7585 Humboldt Prairie Creek. 150 Comment
  UC902184 Image available Iliamna latibracteata Joseph P. Tracy 1948-8-15 18151 Humboldt near Elk Camp, on Ridge 2 miles east of Grove's Prairie; Trinity Summit. 1493 Comment
Read comments
Feb 27 2012
  RSA366776  Iris Anonymous 1941-6-25 s.n. Humboldt Between Garberville [Garbervill Quad] and Pepperwood [Redcrest Quad] Comment
  HSC13853  Iris douglasiana J. C. Reppas 1963-3-16 1 Humboldt 820 Fickle Hill Rd. Comment
  UC1103022  Iris douglasiana J. P. Tracy 1901-5-12 1079 Humboldt vicinity Eureka 0 Comment
  SEINET4170719  Iris macrosiphon Unknown 1938-3-27 15700 - 1/2 Humboldt Miranda, along Fork of Eel River 122 Comment
  UC719144  Iris macrosiphon F. G. Meyer 1938-4-6 1390 Humboldt about 10 mi n Garberville Comment
  UC1005679  Iris purdyi Frank W. Gould 1939-5-30 832 Humboldt about 25 mi due e Eureka (Horse Mountain, along road about halfway-up the mountain road); Horse Mountain 1000 Comment
  CAS-BOT-BC240325  Iris tenax subsp. klamathensis Dana York 2011-5-31 3021 Humboldt Six Rivers National Forest, Ca. 1.1 km S-SE of Somes Bar Post Office, on the slope E and above Hwy. 96 adjacent to a large landslide that occurred in 2010 Comment
  HSC45611  Isatis tinctoria Diane L. Reed 1978-5-7 68 Humboldt E fork of Willow Creek, 34 mi. from Hwy. 101 on Hwy. 299 Comment
  CHSC57145  Isolepis cernua L. P. Janeway 1983-9-24 700 Humboldt 10-30 ft from water line of Big Lagoon at county campground (south corner of the lagoon). 3 Comment
  UC1115831  Isopyrum stipitatum Joseph P. Tracy 1939-4-2 16207 Humboldt Kneeland Prairie 762 Comment
  BLMAR430  Jaumea carnosa Clara Sander 2004-8-30 430 Humboldt South Spit, 1.6km north on the south spit 3 Comment
  CAS-BOT-BC340228  Jaumea carnosa Marcus E. Jones 1931-7-16 2911 Humboldt Arcata Comment
  HSC37499  Jaumea carnosa J. D. Ackerman 1975-8-2 617 Humboldt Hwy. 101 between Arcata and Eureka. Humboldt Bay across from Murray Field Comment
  POM187933  Jaumea carnosa Marcus E. Jones 1931-7-16 29118 Humboldt Arcata. Comment
  CHSC31324  Juncus balticus subsp. ater Mark Stopher 1980-6-4 92 Humboldt Near Hwy 101 bridge over Elk River, s of Eureka. 1 Comment
  UC184214  Juncus bolanderi Joseph P. Tracy 1900-9-3 940 Humboldt Eureka Northern Coast Region 0 Comment
  HSC23673  Juncus bolanderi Tim Baroni 1971-6-25 56 Humboldt Comment
  RSA129413  Juncus breweri H. S. Yates 1936-6-16 5655 Humboldt 1/2 mile southwest of Samoa. 3 Comment
  HSC90771  Juncus bufonius Gail Newton 1982-6-10 3602 Humboldt Elk River Wildlife Area, Eureka Comment
  UC213332  Juncus confusus Joseph P. Tracy 1919-9-22 5272 1/2 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC14890  Juncus covillei var. obtusatus Chesnut and Drew 1888-7-29 Humboldt Grouse Creek Comment
  UC183782  Juncus covillei var. obtusatus Joseph P. Tracy 1908-7-14 2871 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  POM170510  Juncus effusus subsp. pacificus Le Roy Abrams 1916-7-18 6102 Humboldt Arcata to Trinidad. Comment
  UC1103039  Juncus ensifolius Joseph P. Tracy 1926-6-27 7665 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  UC1152101  Juncus ensifolius Joseph P. Tracy 1927-8-28 8356 Humboldt near Boynton Prairie Comment
  UC249814  Juncus ensifolius Joseph P. Tracy 1924-7-4 6703 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  JEPS79913  Juncus falcatus var. falcatus Joseph P. Tracy 1925-10-18 7290 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  HSC63849  Juncus laccatus M. A. Baker 1979-6-27 918 Humboldt Comment
  UC184144  Juncus occidentalis Joseph P. Tracy 1912-6-26 3707 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS67092  Juncus occidentalis Joseph P. Tracy 1926-7-5 7724 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  RSA53820  Juncus patens Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley Place, near Orleans. Comment
  UC302167  Juncus phaeocephalus Joseph P. Tracy 1925-10-18 7293 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1152148  Juncus phaeocephalus var. paniculatus Joseph P. Tracy 1938-7-24 16086 Humboldt corner of Pacific and A Streets Eureka Comment
  RSA168869  Juncus phaeocephalus var. phaeocephalus Joseph P. Tracy 1934-7-13 13391 Humboldt Dow s Prairie. 61 Comment
  HSC57962  Juncus tenuis G. L. Clifton, Terry Griswold 1979-7-31 11667 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  POM225119  Keckiella corymbosa Philip A. Munz 1936-8-9 14328 Humboldt South fork of Eel River, 5 miles north of Humboldt-Mendocino county line. Comment
  UC177173  Keckiella corymbosa Joseph P. Tracy 1912-7-26 3847 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCR136653  Keckiella corymbosa H. M. Pollard 1948-8-12 s.n. Humboldt Near mouth of Pearch Creek, near Orleans 366 Comment
  UC885732  Kickxia elatine Carl D. Duncan 1920-9-22 Humboldt Hoopa Valley Comment
  HSC62771  Kniphofia uvaria M. Dean Griswold Jr. 1979-5-29 74 Humboldt E side of Alliance Rd. Comment
  HSC95250  Kniphofia uvaria Gordon Leppig, Sylvia Leppig 2000-4-9 1287 Humboldt Humboldt Marsh and Wildlife Refuge, SE corner of Klopp Lake Dike 1 Comment
  UC1199393  Kyhosia bolanderi Joseph P. Tracy 1932-7-16 10613 Humboldt Corral Prairie; Trinity summit 1584 Comment
  UC205187  Kyhosia bolanderi Joseph P. Tracy 1919-9-18 5252 Humboldt meadow McKay; Trinity summit 1524 Comment
  UC1199153  Lagophylla ramosissima Joseph P. Tracy 1930-10-12 9217 Humboldt Alton to Fortuna; Eel River 15 Comment
  UC1223221  Lapsana communis Joseph P. Tracy 1949-7-4 18326 Humboldt intersection of Kneeland and Butter Valley roads (at Cameron Hill); Cameron Hill Comment
  RSA21657  Lasthenia californica C. B. Wolf 1937-6-14 8812 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  JEPS10074  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-26 10265 a Humboldt Valley of South Yager Creek 762 Comment
  JEPS9904  Lasthenia californica subsp. californica Lincoln Constance 1934-6-3 809 Humboldt road from High Rock (on Redwood Hwy 1 mi n of Dyerville) to Horse Prairie; South Fork Eel River, Bull Creek Region Comment
  JEPS9905  Lasthenia californica subsp. californica Lincoln Constance 1934-5-23 616 Humboldt sw slope in upper end Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC1103808  Lasthenia glaberrima Joseph P. Tracy 1921-6-12 5826 Humboldt Butler Valley Northern Coast Ranges, Butler Valley 152 Comment
  CAS-BOT-BC204934  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 s.n. Humboldt Red Mountain Comment
  UC709418  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1941-3-26 16844 Humboldt w of mouth of South Fork of Trinity River 304 Comment
  RSA53806  Lathyrus latifolius H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  SDSU4464  Lathyrus latifolius D. F. Howe 1959-8-4 2807 Humboldt Roadside 9 miles east of Arcata on #299. Comment
  HSC14742  Lathyrus littoralis D. B. Bader 1963-4-1 17 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  HSC40263  Lathyrus littoralis Linda M. Barker 1976-4-30 1409 Humboldt 3 mi. W of Arcata Comment
  JEPS55275  Lathyrus littoralis unknown 1926-7-29 115 Humboldt Samoa Comment
  UCD106376  Lathyrus littoralis Linda M. Barker 1976-5-13 1489 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CDA27126  Lathyrus littoralis Gordon Leppig 1998-5-25 787 Humboldt Big Lagoon State Park. Coastal sand dune between ocean and Big Lagoon. Comment
  RSA249401  Lathyrus palustris D. E. Anderson, T. Nelson, S. Dowty 1972-6-17 5702 -A Humboldt McKeown Ranch north of Dinsmore Comment
  HSC64183  Lathyrus polyphyllus J. O. Sawyer, M. A. Erickson 1979-6-23 3392 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC1199075  Lathyrus polyphyllus Joseph P. Tracy 1935-7-22 14126 Humboldt Klamath Mountains, Trinity Summit, near Corral Prairie. Comment
  UC931758  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19094 Humboldt 3 mi w Willow Creek (near Highway 299) Comment
  HSC75555  Lathyrus torreyi J. O. Sawyer, J. Cole 1977-7-3 3004 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  RSA64962  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt Ca 15 miles E of Blue Lake, along Highway #299. Comment
  UCD106539  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-7 19081 Humboldt Redwood highway ca. 15 miles N of Garberville. Comment
  UC168987  Lathyrus vestitus var. vestitus Joseph P. Tracy 1912-8-3 3971 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC15978  Lavatera cretica D. E. Anderson 1962-10-22 2341 Humboldt Samoa Comment
  SEINET3147912  Layia carnosa W. C. Blasdale 1896-6-2 sn Humboldt West Eureka Comment
  UC154035  Ledum glandulosum J. P. Tracy 1901-6-16 1153 Humboldt immediate vicinity of Eureka 0 Comment
  HSC38940  Leontodon saxatilis subsp. saxatilis Linda M. Barker 1976-5-13 1488 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  CAS-BOT-BC89077  Lepidium didymum Joseph P. Tracy 1938-7-15 16067 Humboldt Mouth of Eel River. 3 Comment
  HSC100461  Lepidium menziesii Carl C. Marshall Jun 1887 464 Humboldt Harris and Garberville Rd. Comment
  UC1116214  Lepidium nitidum Joseph P. Tracy 1948-4-4 17962 Humboldt near Samoa; Humboldt Bay 6 Comment
  UC1199164  Lepidium nitidum Joseph P. Tracy 1933-5-20 12225 Humboldt 3 mi s point of Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  UC1116217  Lepidium strictum Joseph P. Tracy 1946-5-4 17433 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC161491  Lepidium strictum Joseph P. Tracy 1911-7-1 3276 Humboldt near Hydesville (at Carlotta); Northern Coast Region, Carlotta 60 Comment
  RSA152321  Lepidium strictum Joseph P. Tracy 1946-5-30 17540 Humboldt Vicinity of Carlotta. 30 Comment
  SEINET7967470 Image available Leptosiphon bicolor Gail Newton 1980-6-28 746 Humboldt Near Mad River Butte 369 Comment
  CAS-BOT-BC226713  Leptosiphon latisectus Alice Eastwood; John Thomas Howell 1937-6-23 4764 Humboldt Dinsmore's [Dinsmore] Comment
  UC673120  Leptosiphon latisectus Joseph P. Tracy 1940-5-17 16553 Humboldt Larrabee Valley 731 Comment
  UC581778  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 670 Comment
  HSC96535  Leucanthemum vulgare Gordon Leppig 1997-8-3 649 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC3107  Leucojum aestivum D. B. Mitchell 1965-3-5 - 3 Humboldt 0.5 mi. N of US Coast Guard Station on Samoa Rd. Comment
  RSA298334  Lewisia cotyledon Marc Baker 1980-7-24 378155 Humboldt F of Salmon quad, Orleans Mtsn. 73 Comment
  CAS-BOT-BC444059  Lewisia cotyledon var. howellii Lincoln Constance; Reed C. Rollins 1942-5-12 2885 Humboldt Klamath-Siskiyou Region. Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  CAS-BOT-BC444479  Lewisia triphylla Joseph P. Tracy 1932-7-10 10376 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  CAS-BOT-BC283516  Leymus X vancouverensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC76426  Lilium bolanderi Teresa Prendusi 1981-7-9 254 Humboldt Near Slate Creek Butte 1122 Comment
  CAS-BOT-BC508393  Lilium columbianum Doris K. Kildale 1927-7-10 3739 Humboldt Gans Prairie, Bald Hills Comment
  CAS-BOT-BC508405  Lilium columbianum A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt A few miles north of Arcata, near U.S. Highway 101 Comment
  RSA259541  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2032 Humboldt Bald Hills Road just east of Redwood National Park Comment
  HSC58337  Lilium kelleyanum Overton, Butler 1979-8-2 12646 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC130633  Lilium kelloggii A. M. Vollmer; L. Beane 1951-7-1 173 Humboldt Freshwater, about 4-5 miles northeast of Eureka Comment
  RSA256730  Lilium kelloggii A. Montalvo, J. D. Akerman 1974-8-1 399 Humboldt 1 mile west of Kneeland P.O. on Greenwood Heights Road Comment
  HSC98082  Lilium pardalinum subsp. vollmeri Cara Witte 2007-7-3 418 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/2 mile east from intersection with National Forest 1. 1397 Comment
  UC1198231  Lilium rubescens Joseph P. Tracy 1911-7-7 3419 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek, near the summit) 1219 Comment
  CDA35335  Limnanthes douglasii B. F. Kemp 1958-5-5 395 -58 Humboldt Loleta. 0 Comment
  UC1561269  Limnanthes douglasii subsp. nivea Barbara Ertter with Thomas J. Delendick 1987-5-16 6925 Humboldt just w Berry Summit (on Hwy 299, ca 15 air mi e of Arcata); Vista Point 914 Comment
  HSC90804  Limonium californicum Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC154019  Limonium californicum Joseph P. Tracy 1901-8-7 1254 Humboldt Samoa Northern Coast Region, Region about Humboldt Bay (salt marsh) 0 Comment
  JEPS23912  Linanthus androsaceus Volney Rattan 1882-1 Humboldt Mouth of Mad River Comment
  JEPS58157  Linanthus androsaceus Milo S. Baker 1923-7-20 45 Humboldt Yager Creek 609 Comment
  UC52737  Linanthus androsaceus W. C. Blasdale 1896-6-6 Humboldt Graham's Comment
  JEPS58239  Linanthus bicolor Lincoln Constance 1934-6-4 817 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region Comment
  JEPS58421  Linanthus filipes W. L. Jepson 1902-7-11 2016 Humboldt Martin's Ranch South Fork of Trinity River Comment
  HSC99851  Linnaea borealis subsp. longiflora T. Jimerson, J. Pageau 1979-6-12 533 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  HSC12547  Linum bienne C. Kline 1970-10-26 42 Humboldt End of School Rd., Mckinleyville, bluffs above Mad River. Comment
  HSC15824  Linum bienne T. M. Mingo May 1965 Humboldt E of parking area at College cove. Comment
  HSC46152  Linum bienne J. P. Smith 1973-5-26 6828 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC59444  Linum bienne Kenneth Clark 1979-4-18 110 Humboldt 1 block E on California Ave., in Arcata. Comment
  HSC97453  Linum bienne Cara Witte 2007-6-7 228 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  CAS-BOT-BC36584  Lithocarpus densiflorus var. echinoides Russell W. Beeson June 1 - July 1 [no year] B- 26 Humboldt Pilot Ridge, Forest Stanislaus 1584 Comment
  HSC81535  Lithophragma affine Thomas W. Nelson, Jane P. Nelson 1980-5-25 5258 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC97506  Lithophragma parviflorum var. parviflorum C. Witte 2007-5-22 80 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  HSC23087  Lithospermum californicum D. E. Anderson 1965-5-1 3581 Humboldt Along road to Bluff Creek campground, about 3 mi. from its junction with Hwy. 96 Comment
  UC1223120  Logfia filaginoides Joseph P. Tracy 1947-5-24 17695 Humboldt on rocky cliff known as Devil's Canyon Comment
  CAS-BOT-BC283403  Lolium multiflorum C. L. Hitchcock; C. V. Muhlick 1963-7-14 22906 Humboldt Along Eel River at Fern Bridge Comment
  UC50710  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6187 Humboldt Cape Mendocino Comment
  HSC42239  Lolium perenne W. F. Nickel 1965-5-13 Humboldt On W side of College Elementary School on Humboldt State College Campus. Comment
  UC50698  Lolium temulentum Joseph Burtt Davy 1899-6-20 5690 Humboldt Hupa Valley Comment
  UC1222610  Lomatium californicum Joseph P. Tracy 1950-6-15 18804 Humboldt 7 mmi. n. Harris (chaparral area at 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
  HSC98968  Lomatium dissectum var. multifidum C. Witte 2007-5-22 76 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1422 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
  UC673273  Lomatium macrocarpum Lincoln Constance and Reed C. Rollins 1942-5-12 2882 Humboldt 5 mi. n.e. Weitchpec (Klamath R. 1 mi. s. of Bluff Creek); Klamath-Siskiyou Region, Klamath R. 121 Comment
  HSC96232  Lomatium nudicaule Kaylea Eickhoff, Cara M. Witte 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  UC647476 Image available Lomatium tracyi Joseph P. Tracy 1933-7-25 12895 Humboldt Grouse Mountain. 1524 Comment
  UC1347206  Lomatium utriculatum Alice Eastwood and John Thomas Howell 1937-6-23 4767 Humboldt Dinsmore's Comment
  OBI81593  Lomatium utriculatum Coll. Tracey, Viola Call 1964-6-20 2272 Humboldt South-facing rocky outcropping near summit above Van Duzen river 7miles east of Bridgeville. 853 Comment
  UC1197140  Lomatium utriculatum Joseph P. Tracy 1924-3-16 6626 Humboldt Northern Coast Ranges, Garberville 121 Comment
  UC602562  Lonicera conjugialis Joseph P. Tracy 1930-7-19 9094 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC535759  Lonicera hispidula var. vacillans Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  HSC31644  Lonicera involucrata var. ledebourii Glenn McGourty 1974-6-1 78 Humboldt Comment
  HSC31737  Lonicera involucrata var. ledebourii Donald Spalinger 1974-4-20 15 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  HSC3926  Lonicera involucrata var. ledebourii W. R. Brigham 1962-5-19 8 Humboldt S of Big Lagoon. Comment
  HSC3928  Lonicera involucrata var. ledebourii D. B. Bader 1963-3-1 25 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC98250  Lotus aboriginus D. E. Anderson 1963-9-29 2850 Humboldt Fish Lake. Comment
  UC162851  Lotus aboriginus J. P. Tracy 1906-5-20 2462 Humboldt immediate vicinity Eureka 0 Comment
  RSA168891  Lotus crassifolius Joseph P. Tracy 1936-6-9 14914 Humboldt Near panther Gap, on the Bull Creek-Mattole Road. Comment
  UC162607  Lotus crassifolius var. crassifolius Harley P. Chandler Jun 1901 1470 Humboldt Orleans Bar to Sommes Bar; North Coast Ranges 365 Comment
  UC1223396  Lotus micranthus Joseph P. Tracy 1933-7-9 12644 Humboldt opposite Willow Creek; Trinity River Valley Comment
  HSC97929  Lotus nevadensis var. douglasii Cara Witte 2007-6-14 284 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  UC1197315  Lotus pinnatus J. P. Tracy 1901-6-30 1201 Humboldt immediate vicinity Eureka 0 Comment
  UC1223422  Lotus pinnatus Joseph P. Tracy 1937-7-3 15375 Humboldt opposite Willow Creek; Trinity River Valley Comment
  UC1223213  Luina hypoleuca Joseph P. Tracy 1947-6-21 17716 Humboldt along Trinity Highway Willow Creek Canyon Comment
  UC157778  Lupinus P. E. Goddard 1906-6 659 Humboldt Lasseck Pk Comment
  UC503003  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-6-14 10161 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC40974  Lupinus arboreus Linda M. Barker 1976-5-13 1474 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  UCD106622  Lupinus arboreus Roman Gankin 1965-8-6 548 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  BLMAR809  Lupinus bicolor Madeleine Hassett 2017-6-7 809 Humboldt King range, Dune next to Mattole Campground (Petrolia) 0 Comment
  HSC95546  Lupinus bicolor Andrea Pickart 2002-5-20 106 Humboldt Manila Dunes, near Manila Community Services District treatment area 15 Comment
  HSC14787  Lupinus bicolor Allan R. Marshall 1962-5-13 14 Humboldt W side of Redwood Creek Bridge, along Hwy. 299 259 Comment
  HSC71467  Lupinus bicolor J. P. Smith, J. O. Sawyer 1973-5-12 6680 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  UC659303  Lupinus elmeri Charles Piper Smith 1929-7-12 4406 Humboldt So<uth> Fork Mtn. Blake Lookout, South Fork Mtn.; Trinity N.F., So<uth> Fork Mountain Comment
  SEINET12154563  Lupinus latifolius J. P. Tracy 1936-1 15036 Humboldt Grouse Mtn 1524 Comment
  POM66233  Lupinus latifolius subsp. latifolius Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  HSC99592  Lupinus latifolius var. latifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 261 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
  UC15962  Lupinus lepidus var. sellulus Harley P. Chandler Jun 1901 1498 Humboldt Klamath River Comment
  UC146917  Lupinus littoralis Harley P. Chandler May, 1901 1147 Humboldt Samoa North Coast Ranges, Humboldt Bay (Humboldt Bay) 3 Comment
  HSC35702  Lupinus luteolus Thomas W. Nelson, B. Reinhardt 1975-7-30 2118 Humboldt E of Pilot Rock Comment
  UC865316  Lupinus luteolus C. L. Hitchcock and J. S. Martin 1939-7-11 5421 Humboldt 65 mi e Arcata; e of Arcata 457 Comment
  HSC39420  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1976-6-15 2710 Humboldt Along Trail from lookout to Blocksburg 1524 Comment
  UC150118  Lupinus nanus Harley P. Chandler June, 1901 1314 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC14930  Lupinus pachylobus H. E. Parks 1930-5-25 871 Humboldt Laribee Valley 762 Comment
  POM92971  Lupinus polyphyllus subsp. polyphyllus L. R. Abrams 1922-6-25 8251 Humboldt Arcata Comment
  UC1197251  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1907-6-25 2576 Humboldt mouth Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay region, Elk River 0 Comment
  UC180233  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1914-7-4 4542 Humboldt High Prairie; on Bald Mountain Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  SEINET12154707  Lupinus sellulus J. P. Tracy 1933-1 12350 Humboldt Gasquet 91 Comment
  HSC38371  Lupinus variicolor Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC14890  Lupinus variicolor J. W. Johnson 1961-9-10 1114 Humboldt Arcata, Christenson Farm or Hunt Farm, Samoa Peninsula Comment
  HSC57382  Luzula comosa Overton, Butler 1979-7-26 10102 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  UC1103681  Luzula comosa Joseph P. Tracy 1906-5-20 2460 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  UC1152137  Luzula comosa Joseph P. Tracy 1938-5-8 15738 Humboldt 4 mi e town (vicinity of Carlotta, edge of woods near Cummings Creek); near Cummings Creek, vicinity of Carlotta 30 Comment
  CAS-BOT-BC436736  Luzula comosa var. laxa R. K. Gierisch; D. H. Esplin 1969-7-1 3539 Humboldt Six Rivers area: Grouse Mt. 1584 Comment
  UC249818  Luzula macrantha Joseph P. Tracy 1924-3-30 6630 Humboldt Northern Coast Ranges. Near Bridgeville 182 Comment
  UC1103676  Luzula parviflora Joseph P. Tracy 1901-4-26 1050 Humboldt Humboldt Hill Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC23776  Lycopodium clavatum R. A. Vanbianchi 1971-9-24 90 Humboldt Near Fieldbrook. Comment
  JEPS26544  Lycopodium clavatum Don Branscomb July, 1959 Humboldt Trinidad Comment
  RSA183502  Lysichiton americanus T. L. Grosz 1964-5-1 C Humboldt 300 yards up on Park Ave. and behind Myrtle Ave. Comment
  SEINET10465778  Lysichiton americanus Sacks 1977-4-8 SACKS 5 Humboldt 0.2 mi W of Highway-101 and 5 mi. N of Trinidad 61 Comment
  UC1222701  Lysichiton americanus Joseph P. Tracy 1950-7-6 18992 Humboldt lower end of Burr Valley Comment
  HSC101056  Lythrum salicaria Sydney Carothers 1997-8-19 207 Humboldt Hwy. 36, north end of dividerless road; private property 732 Comment
  CAS-BOT-BC342807  Madia elegans Lincoln Constance; Reed C. Rollins 1942-5-11 2874 Humboldt California North Coast Ranges. Hoopa Valley 5 miles south of Hoopa 121 Comment
  HSC54202  Madia exigua Griswold, Butler 1979-7-12 7242 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC71712  Madia exigua M. A. Baker 1980-6-26 2431 Humboldt Near Sims Creek 610 Comment
  BLMAR641  Madia exigua Jennifer Wheeler 2011-6-21 641 Humboldt Lacks Creek, Stormy saddle prairie 1158 Comment
  POM232321  Madia gracilis subsp. gracilis I. L. Wiggins 1930-7-11 4679 Humboldt Near Samoa Comment
  RSA554592  Mahonia aquifolium W. Wisura 1993-5-9 4910 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  HSC59066  Maianthemum dilatatum Thomas Wood 1979-4-20 120 Humboldt Along frontage road, parallel and E of Hwy. 101 at Patrick Creek Dr. intersection, S of Patrick Creek 6 Comment
  UCD139044  Maianthemum dilatatum Linda M. Barker 1976-5-13 1484 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC508514  Maianthemum dilatatum Elmer I. Applegate 1926-6-19 4726 Humboldt Crescent City Comment
  CAS-BOT-BC508519  Maianthemum dilatatum Alice Eastwood 1907-4-21 35 Humboldt Port Trinidad Comment
  HSC15600  Maianthemum dilatatum Francis Winter 1960-5-6 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC15643  Maianthemum racemosum subsp. amplexicaule Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  HSC45493  Maianthemum racemosum subsp. amplexicaule Maralyn O'Meara 1972-6-8 105 Humboldt Along Bald Hills Rd., 18 mi. from junction with Hwy. 101 Comment
  CHSC40212  Maianthemum stellatum L. P. Janeway 1984-5-13 776 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
  HSC48751  Maianthemum stellatum Brad Klipfel 1973-6-10 77 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58150  Maianthemum stellatum G. L. Clifton, Griswold 1979-8-2 12200 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC70326  Maianthemum stellatum M. A. Baker 1980-6-8 1881 Humboldt Near Buck Flat. 1554 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
  CAS-BOT-BC347410  Malacothrix floccifera Doris K. Kildale 1926-9-5 2651 Humboldt Lasseck's Peak - Signal Peak 1791 Comment
  HSC98706  Malacothrix floccifera Cara Witte 2007-7-24 572 Humboldt Ammon Ridge Road. 4 miles east of intersection with National Forest 1. 1462 Comment
  UC14182  Malus fusca W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  UC183619  Malus fusca Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3593 Humboldt near Hydesville; Northern Coast Region 30 Comment
  RSA178549  Malus sylvestris Joseph P. Tracy 1950-4-23 18636 Humboldt Trinity River Valley, at Willow Creek. 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
  UC168942  Marah oregana Joseph P. Tracy 1911-8-27 3532 Humboldt Eureka Northern Coast Region 0 Comment
  UC249510  Marah oregana Joseph P. Tracy 1922-4-30 6035 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC49806  Marah oregana R. York 1979-4-13 224 Humboldt Just N of College Cove Comment
  HSC71442  Medicago lupulina J. P. Smith 1971-10-9 5003 Humboldt Mad River above the Fish Hatchery. Comment
  HSC98388  Medicago lupulina Jana Kattenhorn 1970-10-28 144 Humboldt Mad River Bottoms, N Bank off Essex, off Hwy. 299 Comment
  UC1145133  Melica aristata Joseph P. Tracy 1937-7-25 15549 Humboldt 2 mi e Grove's Prairie (on ridge); Trinity Summit 1524 Comment
  CAS-BOT-BC281324  Melica harfordii Doris K. Kildale 1928-6-24 5287 Humboldt Horse Mountain 914 Comment
  UC1103754  Melica harfordii Joseph P. Tracy 1941-7-5 16968 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1132271  Melica harfordii H. S. Yates 1936-6-17 5721 Humboldt near Burr Valley; South Fork Pk. Quad. 914 Comment
  HSC75447  Melica spectabilis J. O. Sawyer 1980-7-18 3606 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC10367  Melica subulata R. D. Zortman 1963-5-5 31 Humboldt 5 mi. NE of Arcata, S of Mad River, off Warren Creek Rd. 91 Comment
  RSA183536  Melica subulata H. S. Logsdon 1964-5-10 6 Humboldt 4.0 miles N.E. of Orick at Boye's Prairie Comment
  UC77000  Melica subulata Joseph Burtt Davy 1899-6-10 5405 a Humboldt Hubbard's Station Comment
  HSC15520  Melilotus albus M. J. Athey 1970-10-12 16 Humboldt Trinidad, along road to Luffenholtz Beach. Comment
  JEPS63288  Melissa officinalis W. L. Jepson 1932-8-2 16472 Humboldt Dyerville 76 Comment
  HSC99607  Mentha canadensis C. B. Wolf 1927-8-22 768 Humboldt Big Lagoon Comment
  POM174071  Mentha canadensis Joseph P. Tracy 1918-9-29 5105 Humboldt South Fork of Eeel River 4 miles above the mouth. Comment
  HSC22008  Mentha pulegium Thomas W. Nelson 1970-10-18 250 Humboldt Beside Hwy. 101, 100 yds. N of bridge over Mad River Comment
  JEPS63443  Mentha spicata Joseph P. Tracy 1925-8-16 7233 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley near South Fork 182 Comment
  HSC25986  Mentzelia laevicaulis Thomas W. Nelson 1970-9-3 221 Humboldt Mad River. Comment
  HSC37227  Menyanthes trifoliata Anonymous 1976-5-14 Humboldt NW of McClellan Mtn. Comment
  RSA46478  Menziesia ferruginea Doris K. Kildale 1927-6-26 3596 Humboldt Redwoods between Big Lagoon and Trinidad. Comment
  CAS-BOT-BC348373  Micropus californicus var. californicus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC175183  Micropus californicus var. californicus Joseph P. Tracy 1913-6-13 4099 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UC164797  Microseris bigelovii Joseph P. Tracy 1911-5-27 3190 Humboldt Humboldt Bay Northern Coast Region Comment
  JEPS13224  Microseris laciniata subsp. leptosepala W. L. Jepson 1902-6 1942 Humboldt Redwood Creek, Green Point Ranch Comment
  UC582733  Microseris nutans Joseph P. Tracy 1930-7-16 8901 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC349239  Microseris nutans E. B. Babcock 1932-6-25 405 Humboldt Humboldt-Trinity Counties, South Fork Mt. north slope 1828 Comment
  HSC58236  Microsteris gracilis Walter Overton 1979-8-1 12394 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC582606  Mimulus alsinoides Joseph P. Tracy 1923-6-3 6258 Humboldt Kneeland Prairie 762 Comment
  JEPS10486  Mimulus arvensis Joseph P. Tracy 1926-5-2 7435 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC20692  Mimulus aurantiacus var. aurantiacus D. E. Anderson 1961-8-25 1755 Humboldt 1.5 miles S of Trinidad. overlooking beach Comment
  SEINET3365865 Image available Mimulus breweri Joseph P. Tracy 1932-7-10 10375 .5 Humboldt Trinity Summit Corral Prairie in wet meadow 1585 Comment
  UC1239052  Mimulus cardinalis Freed W. Hoffman 1949-7-15 3011 Humboldt a little s Blue Ridge (bottom of Mule Slide); North Coast Ranges, Mt. Lassic area Comment
  HSC39160  Mimulus dentatus D. E. Anderson, J. P. Smith 1971-6-28 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UCSB15618  Mimulus dentatus Breedlove, Dennis 1961-7-4 Humboldt 8 miles north of Orick on U.S. Highway 101 91 Comment
  UC1196792  Mimulus douglasii Joseph P. Tracy 1927-4-10 7892 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC22805  Mimulus guttatus D. E. Anderson, J. P. Smith 1970-5-10 5062 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC90636  Mimulus guttatus Gail Newton 1983-6-5 3554 Humboldt Elk River Wildlife Area, Eureka Comment
  POM273242  Mimulus guttatus Lyman Benson 1928-7-10 453 Humboldt Eureka, along ocean bluffs. Comment
  RSA249331  Mimulus guttatus D. E. Anderson, Thomas W. Nelson, S Dowty 1972-6-13 5563 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  UC175796  Mimulus guttatus Joseph P. Tracy 1912-7-31 3897 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  UC1063548  Mimulus inodorus H. L. Person 1932-8-1 Humboldt Korbel Eureka Quadrangle Comment
  JEPS10794  Mimulus inodorus Lincoln Constance 1934-6-18 895 Humboldt border N. Dyerville Flat (near South Fork R.R. Station and P.O.); South Fork Eel River, Bull Creek Region Comment
  UCD20373  Mimulus kelloggii K. Esau 1935-4-23 s. n. Humboldt Humboldt County, Fort Seward. Comment
  RSA535811  Mimulus kelloggii David M. Thompson 1986-3-26 856 Humboldt Somes Bar. Along Hwy 96, 100 ft S of Siskiyou Co. line; at confluence of Klamath and Salmon rivers. 61 Comment
  UC1222804  Mimulus layneae Joseph P. Tracy 1950-7-1 18955 Humboldt Friday Ridge 1219 Comment
  JEPS10468  Mimulus microphyllus Joseph P. Tracy 1933-6-6 12501 Humboldt Trinidad 3 Comment
  HSC73736  Mimulus moschatus M. A. Baker 1980-7-22 3090 Humboldt Near Grogan Hole. 1676 Comment
  HSC74503  Mimulus moschatus Gail Newton 1980-8-10 2052 Humboldt Near Blake Mtn. 1707 Comment
  HSC20782  Mimulus moschatus W. D. Stevens 1967-7-22 49 Humboldt Above the dirt road from old Hwy. 101 to the top of N bank of Mad River Comment
  UC1103339  Mimulus primuloides subsp. primuloides Joseph P. Tracy 1919-9-22 5266 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  SEINET202012  Minuartia cismontana J. P. Tracy 1948-6-13 18055 Humboldt Ridge top near Harris 914 Comment
  CAS-BOT-BC388624  Minuartia douglasii Doris K. Kildale 1928-5-27 5954 Humboldt Kneeland Prairie 853 Comment
  HSC71799  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  UC668119  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1935-7-30 14353 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC48149  Mitella caulescens Volney Rattan 1882-6-1 s.n. Humboldt Coast Mts. North of San Francisco Bay - Near Boulder Cr. Comment
  UC902016  Mitella diversifolia Joseph P. Tracy and Harold E. Parks 1949-6-5 11654 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC433033  Mitella ovalis J. P. Tracy 1901-6-10 1133 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC96209  Moehringia macrophylla Rick Lindquist, C. Riley 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1205 Comment
  UC1191371  Mollugo verticillata Malcolm A. Nobs, S. Galen Smith 1949-8-11 1339 Humboldt eastern shore of Stone Lagoon; Stone Lagoo Comment
  HSC57989  Monardella odoratissima G. L. Clifton, Griswold 1979-7-31 11732 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC58101  Monardella odoratissima subsp. pallida G. L. Clifton, Griswold 1979-8-1 12032 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  JEPS51853  Monardella odoratissima subsp. pallida Hilda W. Grinnell 1932-7-19 26 Humboldt Near Camp McKay on South Fork Mountain Comment
  HSC98984  Monardella sheltonii Cara Witte 2007-7-27 604 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1413 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
  RSA264852  Montia diffusa Lincoln Constance, A. A. Beetle 1940-5-17 2615 Humboldt In Shade of Cornus and Sambucus, cutover Pseudotsuga forest. Above Van Duzen River, 1 mile below Dinsmore s 762 Comment
  HSC70951  Montia linearis J. M. DiTomaso 1981-5-15 2007 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  HSC96218  Montia linearis J. McIntire, S. Lyon 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on FS Rd. NF1 1280 Comment
  CAS-BOT-BC445163  Montia parvifolia Harley P. Chandler 1901-5-1 1261 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  HSC31552  Montia parvifolia Glenn McGourty 1974-5-11 41 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  RSA739606  Montia parvifolia John Dittes, Josephine Guardino 2003-6-7 2003 -64 Humboldt Outer N coast Range, 2.9 air mile NW of Legget, 5.2 air mile SE of Piercy, shaded rocks on eastern bank of S Fork Eel River. 183 Comment
  HSC17671  Montia parvifolia Doris K. Kildale 1925-6-14 671 Humboldt Yager Comment
  HSC16105  Morella californica D. E. Anderson 1961-9-13 1805 Humboldt Big Lagoon County Park Comment
  UCD110311  Morella californica Joseph P. Tracy 1948-4-4 17956 Humboldt Near Samoa, on Humboldt Bay. 6 Comment
  OBI22021  Muhlenbergia filiformis Joseph P. Tracy 18-Sep-19 5233 Humboldt Trinity Summit 1829 Comment
  UCD86793  Muhlenbergia mexicana Eleanor Armstrong 1934-1 1148 Humboldt Richardson Grove. Comment
  UCD86802  Muhlenbergia mexicana Joseph P. Tracy 1916-9-5 4774 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  CAS-BOT-BC101664  Myrica californica Volney Rattan s.n. Humboldt unspecified Comment
  CAS-BOT-BC101669  Myrica californica Doris K. Kildale 1926-11-28 2866 Humboldt Patrick's Point Comment
  POM89536  Myriophyllum sibiricum Joseph P. Tracy 1920-8-29 s.n. Humboldt Near mouth of Little River, in pond in coast sand dunes. 6 Comment
  HSC91593  Narcissus tazetta E. Mackey 1986-7-21 Humboldt Patrick's Point State Park near Ceremonial Rock. Comment
  RSA10044  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt Phillipsville 122 Comment
  HSC6893  Nasturtium officinale P. W. Shields 1955-6-16 Humboldt HSU campus Comment
  HSC55328  Navarretia divaricata Griswold, Butler 1979-7-12 7167 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  JEPS70296  Navarretia divaricata Joseph P. Tracy 1930-7-23 9119 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  JEPS70369  Navarretia leucocephala subsp. bakeri Joseph P. Tracy 1928-6-24 8476 Humboldt between Middle Yager Creek and North Yager Creek (East Ranch) 762 Comment
  HSC81494  Navarretia mellita Thomas W. Nelson, Jane P. Nelson 1980-8-12 6235 Humboldt Logging roads S of Lundbar Hills 61 Comment
  RSA67625  Navarretia mellita P. A. Munz 1951-7-15 16545 Humboldt Ca. 3 mi. N of Willow Creek 137 Comment
  SEINET200382  Navarretia squarrosa J. P. Tracy 1904-7-31 2135 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC1198528  Navarretia squarrosa Joseph P. Tracy 1927-7-24 8293 Humboldt Upper Mattole 152 Comment
  HSC100628  Neillia opulifolia Carl C. Marshall Apr 1885 52 Humboldt Streams etc. near coast. Comment
  SEINET10873102  Nemacladus capillaris Tracy 1908-6-27 TRACY 2842 Humboldt Northwest slope of Buck Mountain 1219 Comment
  CHSC19477  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 miles north of Willow Creek along road on east side of Trinity River. Comment
  UC24190  Nemophila heterophylla Mary H. Manning Humboldt Hupa Comment
  HSC13578  Nemophila menziesii var. atomaria D. E. Anderson 1962-3-4 1927 Humboldt About 2 mi. S of Trinidad Comment
  CAS-BOT-BC219404  Nemophila parviflora Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC219409  Nemophila parviflora Kenneth Clark 1980-3-23 533 Humboldt Shelter Cove. South fork Dead Man's [Deadman] Gulch 60 Comment
  JEPS12285  Nicotiana attenuata Joseph P. Tracy 1916-9-5 4763 Humboldt 4 mi above South Fork of Eel River mouth; Northern Coast Ranges 60 Comment
  UC73584  Nicotiana quadrivalvis var. quadrivalvis J. Burtt Davy and Blasdale Jun 20 1899-Jan 1 1900 5709 Humboldt Hoopa Valley; North Coast Ranges Comment
  CAS-BOT-BC142297  Oemleria cerasiformis Doris K. Kildale 1926-3-14 1531 Humboldt Blue Slide on the Van Duzen River Comment
  HSC79334  Oemleria cerasiformis D. H. Norris 1970-5-20 12218 Humboldt Crest of Big Hill Rd. E of Hoopa Comment
  UC1198785  Oemleria cerasiformis Joseph P. Tracy 1923-4-1 6172 Humboldt Blue Lake; Northern Coast Ranges 60 Comment
  UC1222314  Oemleria cerasiformis Joseph P. Tracy 1951-6-21 19514 Humboldt opposite Willow Creek; Trinity Valley Comment
  HSC16487  Oenothera glazioviana Wm. F. Bowman 1968-11-20 Humboldt At the jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  POM224765  Oenothera glazioviana P. A. Munz 1936-8-13 14384 Humboldt 7 miles east of Arcata. Comment
  CAS-BOT-BC171604  Oenothera wolfii Carl B. Wolf 1937-9-9 9307 Humboldt Coast, 2 mi. so. of Cape Mendocino 6 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
  JEPS10821  Orobanche fasciculata Lincoln Constance 1934-5-29 741 Humboldt Bull Creek Region. South Fork Eel River. Upper Look Prairie, just above Lookout Point. Comment
  UC1197442  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1941-4-26 16865 Humboldt Kneeland Prairie. Comment
  HSC99519  Orthilia secunda K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 182 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA0083228  Orthilia secunda C. B. Wolf 1937-8-13 9264 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  SEINET8733530 Image available Orthocarpus erianthus var. gratiosus S. K. Harris 1942-1 1474 Humboldt Bear River Ridge, 1500 ft. 457 Comment
  HSC102065  Orthocarpus imbricatus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 967 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC44558  Orthocarpus imbricatus Brad Klipfel 1973-7-15 177 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56086  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11774 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  POM225846  Orthocarpus lithospermoides M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  JEPS14255  Osmorhiza berteroi Joseph P. Tracy 1932-7-12 10450 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  CDA38481  Osmorhiza berteroi Kaylea Eickhoff, Cara M. Witte 2005-6-1 7 Humboldt Coldspring Camp, 7.4 mi. south of Hwy. 299 on NF1. Comment
  UC642277  Osmorhiza occidentalis Joseph P. Tracy 1933-7-26 12906 Humboldt Grouse Mountain 1630 Comment
  HSC16719  Oxalis articulata subsp. rubra D. E. Anderson 1961-9-22 1827 Humboldt Comment
  CSUSB849  Oxalis oregana Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  HSC16708  Oxalis oregana D. E. Anderson 1963-3-1 2370 Humboldt E Fork Forest Camp, along E Fork Willow Creek. Comment
  HSC59195  Oxalis oregana Terry Roth 1979-5-20 59 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  JEPS43153  Oxalis oregana Lincoln Constance 1934-5-23 605 Humboldt se slope mt.above Look Prairie; Bull Creek Region, South Fork Eel River Comment
  HSC6137  Packera bolanderi H. E. Parks, S. T. Parks May 1930 747 Humboldt Near Blue Slide on the middle Van Duzen River Comment
  UC183769  Paeonia brownii Joseph P. Tracy 1913-6-17 4150 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 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
  UC1145221  Panicum acuminatum var. acuminatum Joseph P. Tracy 1938-9-25 16172 Humboldt Bald Mountain at Lake Prairie; Bald Mountain at Lake Prairie 1066 Comment
  UC39291  Panicum acuminatum var. acuminatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5894 Humboldt near Martin's Ferry (North-Western California); near Martin's Ferry Comment
  SEINET10859947  Panicum bulbosum Joseph P. Tracy 1912-10-20 Tracy 4009 Humboldt Alton. Dried-up slough-bed. Comment
  CAS-BOT-BC253706  Panicum capillare Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1103409  Parapholis incurva Joseph P. Tracy 1950-6-17 18833 Humboldt Eureka Slough Eureka; Eureka Slough 3 Comment
  RSA516351  Parentucellia viscosa Barbara Ertter, Tom Delendick 1987-5-16 6915 Humboldt Hwy 299, ca 8 mi E of Arcata, 9.5 mi W of Lord Ellis summit. Comment
  UCSB30624  Parentucellia viscosa Edwards, David 1974-8-14 Humboldt 3/4 mi. in on dirt road from jct. with Fickle Hill Rd. ca. 1/4 mi. E. of jct. of Park Ave. and Fickle Hill Rd.; where dirt road forks several ways. ca. 50 ft. S. of power line twr. Arcata 121 Comment
  HSC54592  Paxistima myrsinites Overton, Butler 1979-7-24 9660 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  JEPS10724  Pedicularis groenlandica Joseph P. Tracy 1932-7-16 10639 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  HSC102174  Pedicularis racemosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1086 Humboldt Patterson Meadows 1566 Comment
  HSC34280  Pedicularis racemosa K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  JEPS60059  Pellaea andromedifolia Willis G. Corbitt 1933-4-9 Humboldt Scotia Bluffs Comment
  UC218629  Pellaea mucronata var. mucronata Joseph P. Tracy 1921-5-30 5494 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC24382  Penstemon anguineus J. O. Sawyer 1970-6-24 2255 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC55690  Penstemon anguineus Walter Overton, Marvin Butler 1979-7-26 9999 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1341 Comment
  HSC56333  Penstemon anguineus Walter Overton, Marvin Butler 1979-8-2 12705 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  UC1586978  Penstemon anguineus Juha Pykala and D. H. Norris 1987-6-11 1564 Humboldt sw North Trinity Mountain (North Trinity Mountain Wilderness); North Trinity Mountain Wilderness Comment
  RSA420442  Penstemon anguineus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2907 Humboldt Along east side of Red Lassic; beside road 1S07. 1677 Comment
  SD77341  Penstemon anguineus F. W. Pennell, J. P Tracy 1940-7-7 26092 Humboldt Grouse Mountain, w. of Salyer, gravelly bank 1372 Comment
  HSC32305  Penstemon azureus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5649 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  RSA167237  Penstemon heterophyllus subsp. purdyi Joseph P. Tracy 1950-6-15 18782 Humboldt At the Jenk's Ranch, where not over sheeped, 7 miles N of Harris. Comment
  RSA33967  Penstemon heterophyllus subsp. purdyi Doris K. Kildale 1926-4-30 1935 Humboldt Bucilana Bridge. Comment
  UC577366  Penstemon heterophyllus var. heterophyllus Joseph P. Tracy 1933-6-25 12616 Humboldt along Eel River 2 to 5 mi e South Fork Eel River (Camp Grant); along Eel River, e of South Fork 45 Comment
  NY601767  Penstemon heterophyllus var. purdyi L. Constance 1934-5-26 676 Humboldt South Fork of Eel River, south end of Dyerville Bridge 45.7 Comment
  RSA120319  Penstemon laetus var. sagittatus S. S. Tillett 1956-7-6 608 Humboldt On E facing slope above Klamath River, along Ishi Rish Road, approx. 1.5 mi from Orleans. 198 Comment
  HSC72436  Penstemon neotericus J. P. Smith, J. O. Sawyer 1972-5-28 5387 Humboldt 0.5 mi. S of Somes Bar on Hwy. 96 305 Comment
  UCR39809  Penstemon newberryi D. K. Imper 1984-6-6 s.n. Humboldt Slate Creek Butte 1372 Comment
  HSC56195  Penstemon procerus var. brachyanthus Gilbert Muth 1979-8-1 12139 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  NY638944  Penstemon procerus var. brachyanthus J. P. Tracy 1932-7-12 10480 Humboldt Trinity Summit. Head of Brett Hole 1828.8 Comment
  RSA0070753  Pentagramma triangularis Doris K. Kildale 1928-12-29 6765 Humboldt Stevens Grove. Comment
  UCSB51227  Pentagramma triangularis subsp. triangularis Almanza, Ed 1976-7-16 Humboldt 6.2 miles west of Berry Summit, Highway 299 762 Comment
  UC1197126  Perideridia gairdneri subsp. borealis J. P. Tracy 1906-11-4 2555 Humboldt near Eureka; Immediate vicinity of Eureka 0 Comment
  UC314589  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1923-10-28 6588 Humboldt Bald Mt. Northern Coast Ranges 762 Comment
  SD112992  Perideridia howellii Darley F. Howe 1961-8-2 3125 Humboldt 24 miles east of Orick on Bald Mt. road. 915 Comment
  HSC75289  Perideridia kelloggii J. O. Sawyer, M. A. Ericksen 1980-8-18 4061 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  UC184145  Perideridia kelloggii Joseph P. Tracy 1912-10-20 3999 Humboldt Alton Northern Coast Region 30 Comment
  JEPS12449  Perideridia kelloggii W. L. Jepson 1931-8-8 16488 Humboldt Grasshopper Peak 1005 Comment
  HSC98965  Perideridia oregana Cara Witte 2008-7-28 943 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  HSC12023  Persicaria punctata D. Santana 1970-10-28 Humboldt Mad River off Essex Ln., Hwy. 299 Comment
  HSC65662  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC24318  Phacelia bolanderi J. Burtt Davy 1899-6-12 5468 Humboldt bluffs of river near Camp Grant; North Coast Ranges, E#el River Comment
  UCR15551  Phacelia bolanderi George K. Helmkamp 1978-7-15 s.n. Humboldt Prairie Creek Redwoods State Park 305 Comment
  JEPS1545  Phacelia corymbosa Joseph P. Tracy 1926-6-20 7624 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  JEPS1966  Phacelia egena P. E. Goddard 1906-6 661 Humboldt Lasseck Peak Comment
  RSA201448  Phacelia egena Alice Eastwood, J. T. Howell 1937-6-23 4759 Humboldt Dinsmore s. Comment
  UC562573  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1926-6-20 7661 Humboldt lower slopes Horse Mt. 914 Comment
  JEPS55962  Phacelia mutabilis John Thomas Howell 1937-7-31 13715 Humboldt Boise Creek Comment
  UC1199102  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1938-6-11 15891 Humboldt Table Bluff 91 Comment
  JEPS81028  Phacelia nemoralis subsp. oregonensis James P. Smith 1973-5-26 6871 Humboldt near Rio Dell (bluffs along river); Eel River, Scotia Bluffs Comment
  UC1051817  Phacelia nemoralis subsp. oregonensis L. R. Heckard 1952-5-13 272 Humboldt near railroad station; Alton Comment
  UC1103763  Phalaris arundinacea Joseph P. Tracy 1934-10-21 13695 Humboldt along coast in front of south end Stone Lagoon (Dry Lagoon); in front of South End Stone Lagoon, Dry Lagoon 3 Comment
  HSC35714  Philadelphus californicus Thomas W. Nelson 1975-10-12 2235 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC56132  Philadelphus californicus G. L. Clifton, Griswold 1979-8-1 11949 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC76556  Philadelphus lewisii W. R. Dudley 1899-6-21 s.n. Humboldt Near Eel River below Dyerville Comment
  JEPS49601  Philadelphus lewisii W. L. Jepson 1902-7-1 1964 Humboldt Hupa Road Redwood Creek Comment
  UC161560  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3318 Humboldt Willow Creek Northern Coast Ranges (near its mouth, creek is a tributary of Trinity River) 304 Comment
  HSC102142  Phleum alpinum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1048 Humboldt Patterson Meadows 1555 Comment
  UC184148  Phleum alpinum Joseph P. Tracy 1912-7-26 3869 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCD89305  Phleum alpinum Don Hagar 1957-8-6 s.n. Humboldt Jackson Hole, west slope of the Trinity Summit area. 1645 Comment
  HSC31124  Phlox adsurgens J. O. Sawyer 1970-6-24 2262 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UC52674  Phlox adsurgens P. E. Goddard 1901-7-8 31 Humboldt Hupa Comment
  UC906757  Phlox adsurgens Joseph P. Tracy 1942-6-23 17233 Humboldt near Box Camp; Trinity Summit 1524 Comment
  RSA20789  Phlox adsurgens C. B. Wolf 1937-8-13 9254 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  SEINET12279173  Phlox adsurgens H. P. Chandler 1901-1 1534 Humboldt Klamath River 427 Comment
  UC52358  Phlox adsurgens Joseph Burtt Davy and Walter C. Blasdale 1899-5 5708 Humboldt above Three Creeks Comment
  HSC100598  Phlox gracilis Carl C. Marshall Apr 1887 373 Humboldt Hoopa Valley. Comment
  UC1198560  Phlox gracilis Joseph P. Tracy 1932-5-10 9933 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  CAS-BOT-BC140586  Physocarpus capitatus Doris K. Kildale 1926-5-15 3158 Humboldt Petrolia Bridge, Mattole River Valley Comment
  HSC18711  Physocarpus capitatus C. B. Wolf 1927-8-30 1248 Humboldt 3 mi. S of Thorn along old coast road Comment
  UC249641  Physocarpus capitatus Joseph P. Tracy 1922-9-3 6110 Humboldt Klamath River at Bluff Creek 91 Comment
  SJSU2517  Physocarpus capitatus H. L. Buckalew 1962-6-21 Humboldt Smith R at Smith Cr Redwood State Park Comment
  HSC28257  Picea sitchensis Gary S. Lester 1973-12-2 56 Humboldt E of HSC campus Comment
  UC1134170  Picea sitchensis H. S. Yates 1936-6-16 5659 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  UC615028  Picea sitchensis Beryl O. Schreiber 1934-6-5 1130 Humboldt 5 mi above Fortuna (along highway) Comment
  CAS-BOT-BC73290  Pinus contorta Ira L. Wiggins 1930-6-25 4620 Humboldt Sand dunes 2 miles north of Samoa. Comment
  MACF017417  Pinus contorta Trudy R. Ericson 1974-8-5 198 Humboldt Hwy 255 between Eureka and Arcata, near the shore Comment
  RSA246942  Pinus contorta var. contorta Robert F. Thorne, P. Everett 1965-8-7 35217 b Humboldt Samoa Peninsula. 3 Comment
  HSC54535  Pinus jeffreyi Overton, Butler 1979-7-23 9485 Humboldt Near Horse Mtn. Creek 1326 Comment
  HSC54534  Pinus monticola Overton, Butler 1979-7-23 9483 Humboldt Near Horse Mtn. Creek 1326 Comment
  HSC82621  Pinus monticola Thomas W. Nelson 1979-7-11 5006 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC36773  Pinus sabiniana Brent Whitely 1975-7-10 153 Humboldt 198 Comment
  UCD139019  Piperia transversa Linda M. Barker 1976-6-14 1595 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC13529  Piperia unalascensis Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC40374  Pittosporum tenuifolium Linda M. Barker 1976-10-7 1703 Humboldt 3 mi. W of Arcata. Comment
  CAS-BOT-BC458133  Pityopus californicus Volney Rattan no date on label; presented 1903 s.n. Humboldt Unspecified Comment
  UC552843  Plagiobothrys hispidulus Joseph P. Tracy 1935-7-25 14226 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC1239569  Plagiobothrys reticulatus Joseph P. Tracy 1909-5-23 2972 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC1541669  Plagiobothrys reticulatus H. E. and S. T. Parks July 1937 24042 Humboldt Trinidad, Spruce Cove Comment
  UC179943  Plagiobothrys reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1239570  Plagiobothrys reticulatus Joseph P. Tracy 1916-6-19 4727 Humboldt near Forks Dobbyn Creek; Northern Coast Ranges, Forks Dobbyn Creek 182 Comment
  JEPS60999  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1936-6-28 15009 Humboldt near Murphy Meadows; Bald Mt. 914 Comment
  UC1222199  Plagiobothrys scouleri Joseph P. Tracy 1950-6-8 18724 Humboldt Bear River Ridge Comment
  UC906674  Plantago coronopus Stuart K. Harris 1942-5-28 6982 Humboldt 1 mi w Fortuna (near Palmer Creek) 15 Comment
  JEPS14285  Plantago erecta J. P. Tracy 1919-4-27 5133 Humboldt opposite Eureka (Ocean Beach); Samoa Comment
  UC585986  Plantago erecta Joseph P. Tracy 1932-5-10 9930 Humboldt Bear River Bridge Northern Coast Ranges 609 Comment
  HSC16840  Plantago lanceolata D. B. Bader 1963-4-1 13 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  HSC37930  Plantago lanceolata Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  JEPS85907  Plantago lanceolata Lincoln Constance 1934-5-27 700 Humboldt s end Dyerville Bridge (on South Fork Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  HSC98671  Plantago lanceolata Cara Witte 2008-7-10 855 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 4N38 and Brays Opening. 1326 Comment
  HSC62909  Platanthera dilatata J. M. DiTomaso 1979-5-20 1048 Humboldt Big Lagoon Park, 8 mi. N of Trinidad Comment
  HSC74221  Platanthera dilatata var. leucostachys M. A. Baker 1980-7-22 3121 Humboldt Near Grogan Hole. 1676 Comment
  SBBG51158  Platanthera dilatata var. leucostachys R. S. Woglum 1937-8-29 2037 a Humboldt State Park grounds S of Trinidad Comment
  HSC16803  Platystemon californicus J. Wendell Howe 1934-6-27 1291 Humboldt Samoa Comment
  HSC16792  Platystemon californicus J. W. Johnson 1962-8-18 1245 Humboldt Arcata, Mad River County Park Comment
  SEINET780341  Plectritis M. A. Baker 1980-3-7 1151 Humboldt confluence of Pine and Burndt Ranch Creeks Comment
  HSC33743  Plectritis congesta A. Montalvo 1975-5-24 279 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  JEPS24246  Plectritis macrocera L. T. Dempster and G. L. Stebbins 1960-5-30 1204 Humboldt (third canyon) n of Woodward Ranch (e base of Pine Forest Mountains); Pine Forest Mountains 1341 Comment
  HSC49370  Pleuricospora fimbriolata T. Jimerson, J. Pageau 1979-6-15 582 Humboldt West of FS 11N21, on the boundary between Sections 27 and 28. 762 Comment
  HSC63190  Pleuricospora fimbriolata M. A. Baker 1979-6-28 942 Humboldt Middle fork of Mill Creek. Comment
  RSA167306  Pleuropogon refractus Joseph P. Tracy 1951-6-26 19560 Humboldt Halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  HSC10623  Poa annua Gene S. Van Horn 1962-5-2 10 Humboldt Near main house at 250 East 17th St., Arcata. 61 Comment
  UC1145120  Poa bolanderi Joseph P. Tracy 1937-7-29 15581 Humboldt near McKay camp South Fork Mt 1676 Comment
  UC525632  Poa compressa Joseph P. Tracy 1927-7-3 8224 Humboldt Fieldbrook 60 Comment
  RSA10143  Poa confinis Joseph P. Tracy, H. E. Parks 1927-4-24 7947 Humboldt Eureka 9 Comment
  UC1103177  Poa douglasii Joseph P. Tracy 1932-5-10 9943 Humboldt s point of the Cape Cape Mendocino Comment
  UC594152  Poa douglasii S. K. Harris 1936-6-15 3383 Humboldt Trinidad Head Comment
  OBI22114  Poa howellii Joseph P. Tracy 1949-6-6 18308 Humboldt Happy Camp Mtn (In Trinity Summit Range, 6 mi NE of Hawkins Bar.) Comment
  UC187223  Poa howellii Joseph P. Tracy 1906-7-10 2486 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCD91113  Poa howellii Don Hagar 1956-5-24 s.n. Humboldt Brush Mountain. 5 to 6 miles southwest of Willow Creek, eastern part of county. Comment
  HSC104392  Poa kelloggii J. Kalt, Z. Mendoza 1996-6-11 Humboldt Prairie Creek Redwoods Stae Park; 0.25 mi. SW of Elk Prairie Campground Comment
  CAS-BOT-BC255942  Poa pratensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC40520  Poa secunda subsp. secunda Thomas W. Nelson, Jane P. Nelson 1976-7-1 2927 Humboldt Along ridge W of Lassic Peak (Signal Peak). 1738 Comment
  HSC99415  Poa trivialis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 64 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
  RSA129470  Poa trivialis H. S. Yates 1936-6-16 5683 Humboldt Near Bayside 9 Comment
  UC525618  Poa trivialis Joseph P. Tracy 1926-6-12 7590 Humboldt near Orick (at Davison's Ranch on Prairie Creek); North Coast Ranges 60 Comment
  UCD92128  Poa unilateralis Harley P. Chandler 1901-5-1 1140 Humboldt Humboldt Bay. 3 Comment
  RSA83441  Pogogyne douglasii F. W. Peirson 1926-7-14 7066 Humboldt Redwood Camp, Lower Eel River Comment
  UC1116249  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta, open flat by old Strong's District School House 5 miles east of town 60 Comment
  CAS-BOT-BC232886  Polemonium carneum Carl B. Wolf 1937-6-17 8881 Humboldt Big Lagoon, S side at W of Redwood Highway 6 Comment
  CAS-BOT-BC232888  Polemonium carneum Carl B. Wolf 1937-8-10 9093 Humboldt Big Lagoon, S side. W of Redwood Highway 6 Comment
  JEPS69885  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  HSC32032  Polycarpon tetraphyllum D. E. Anderson 1974-8-1 Humboldt 6th St. in Eureka Comment
  UC183759  Polygala californica Joseph P. Tracy 1912-6-9 3667 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CHSC32935  Polygala cornuta J. P. Smith; Steve Selva 1970-6-14 3841 Humboldt Along Calif. 96 at Whitmore Creek. 152 Comment
  CAS-BOT-BC167575  Polygala cornuta var. cornuta Harley P. Chandler 1901-6-1 1502 Humboldt Klamath River 426 Comment
  UC672972  Polygonum bistortoides Joseph P. Tracy 1927-6-18 8171 Humboldt Bear River Ridge 609 Comment
  HSC55160  Polygonum douglasii Gilbert Muth 1979-8-1 12122 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC55101  Polygonum minimum G. L. Clifton 1979-7-31 11832 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  BLMAR616  Polygonum paronychia Jennifer Wheeler 2011-5-20 616 Humboldt King range, Below Strawberry Rock along Mattole dunes 7 Comment
  CAS-BOT-BC109187  Polygonum paronychia D. E. Breedlove 1962-6-7 3035 Humboldt 1.5 mile south of Samoa on peninsula on western side of Humboldt Bay. Comment
  RSA286307  Polygonum paronychia Robert F. Thorne 1974-7-29 45080 Humboldt Samoa Dunes. Comment
  SD39934  Polygonum paronychia Edith A. Purer 1932-7-27 4129 Humboldt Samoa, sand dunes Comment
  UC1198083  Polygonum persicaria Joseph P. Tracy 1919-9-14 5203 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC419854  Polygonum polygaloides subsp. confertiflorum Alice Eastwood; John Thomas Howell 1937-6-23 4812 Humboldt Little Van Duzen River Comment
  UC1225798  Polygonum sachalinense Joseph P. Tracy 1946-8-25 17634 Humboldt roadside 1/2 mi s mouth of Elk River 6 Comment
  HSC98633  Polygonum spergulariiforme Cara Witte 2008-8-5 983 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1569 Comment
  HSC28487  Polypodium californicum J. D. Ackerman 1973-3-27 53 Humboldt 1.5 mi. N of Manila Comment
  SEINET204934 Image available Polypodium californicum C. O. Baker 4 Humboldt 2 miles south of Trinidad along old 101 highway 122 Comment
  CAS-BOT-BC76848  Polypodium glycyrrhiza Doris K. Kildale 1928-2-19 4262 Humboldt Big Rock between Little River and Moonstone Beach Comment
  SEINET10530419  Polypodium glycyrrhiza Mary Susan Taylor 1982-10-24 Taylor 5184 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC163333  Polypodium glycyrrhiza J. P. Tracy 1909-10-7 3113 Humboldt near Redwood Creek Redwood Creek; Bald Hills 609 Comment
  CAS-BOT-BC72083  Polypodium scouleri Ira L. Wiggins 1957-6-20 14133 Humboldt East side of highway, Trinidad Comment
  HSC1113  Polypodium scouleri D. E. Anderson 1961-8-11 1723 Humboldt E of HSC campus Comment
  RSA85053  Polypodium scouleri F. W. Peirson 1926-7-12 7039 Humboldt Hills north of inlet at Orick Comment
  HSC26536  Polypogon australis J. P. Smith 1971-10-9 5035 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC79510  Polypogon interruptus Kenneth Clark 1980-6-14 694 Humboldt Shelter Cove, N Fork of Dead Man's Gulch. 122 Comment
  UC1145080  Polypogon interruptus Joseph P. Tracy 1938-8-28 16137 Humboldt Trinidad; Coast bluffs, Trinidad 6 Comment
  CAS-BOT-BC232593  Polypogon monspeliensis Doris K. Kildale 1927-6-25 3546 Humboldt Shelter Cove Comment
  HSC10844  Polypogon monspeliensis D. E. Anderson 1961-8-25 1743 Humboldt Beach area 1.5 miles S of Trinidad. Comment
  UC1440055  Polystichum Danin & H. G. Baker 1960-9-2 663 Humboldt Bull Creek-Honeydew Rd. Comment
  HSC70749  Polystichum imbricans R. York 1980-5-17 534 Humboldt Near Le Perron Peak 1066 Comment
  HSC73633  Polystichum imbricans M. Baker 1980-7-23 3178 Humboldt Near Orleans Mtn. 1859 Comment
  HSC1154  Polystichum munitum R. I. Bonn 1965-5-9 40 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC54599  Polystichum munitum Overton, Butler 1979-7-24 9679 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC70930  Polystichum munitum R. York 1980-5-18 559 Humboldt Near Black Mtn. 1006 Comment
  HSC74743  Polystichum munitum Gail Newton 1981-8-6 2386 Humboldt Near Bug Creek 1125 Comment
  SDSU1640  Polystichum munitum Harvey 1938-8-13 2251 Humboldt Redwood Park. Comment
  UC906749  Polystichum munitum Joseph P. Tracy 1947-7-9 17843 Humboldt Horse Mt. 1432 Comment
  HSC77920  Polystichum munitum L. P. Janeway, Paul Wilson 1984-5-25 817 Humboldt On N Spit of Humboldt Bay on BLM lands near the Coast Guard Station 5 Comment
  UC922660  Polystichum munitum Annie M. Alexander and Louise Kellogg 1948-9-3 5574 Humboldt above Trinity River Rd Hoopa Reservation Comment
  HSC7226  Populus trichocarpa R. E. Thill 1965-4-24 18 Humboldt 100 yds. from Town & Country Trailer Park beside Mad River Comment
  UC672878  Potamogeton foliosus H. E. Parks and Joseph P. Tracy 1933-6-11 12548 Humboldt near Miranda 91 Comment
  UC60858  Potamogeton natans W. C. Blasdale June, 1896 Humboldt near Graham's Ranch (on Mad River); Mad River Comment
Read comments
Sep 17 2012
  CDA837  Potamogeton nodosus E. C. Whitney 1963-9-2 s.n. Humboldt In lake of Benbow Lake State Park, south of Garberville. 0 Comment
  JEPS42952  Potamogeton pectinatus Joseph P. Tracy 1916-6-19 4718 Humboldt Dobbyn Creek; Northern Coast Ranges 182 Comment
  HSC95736  Potentilla anserina subsp. pacifica Steven Lee 2004-4-10 11 Humboldt Drive from intersection of V St. and Samoa Blvd. in Arcata 1/8 mi. towards parking area to S 200 Comment
  CAS-BOT-BC143081  Potentilla anserina subsp. pacifica Malcom A. Nobs; S. Galen Smith 1949-8-3 1161 Humboldt 1 mile south of Fields Landing, Eel River Valley Comment
  UC774620  Potentilla anserina subsp. pacifica Carl B. Wolf 1937-9-12 9326 Humboldt Dry Lagoon State Park 4 Comment
  HSC98450  Potentilla gracilis John Rehling 1974-7-12 11 .5 Humboldt Near the Bald Hills Rd., 23.5 mi. from Hwy. 101 Comment
  HSC102177  Potentilla gracilis var. fastigiata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1090 Humboldt Patterson Meadows 1555 Comment
  HSC97917  Potentilla gracilis var. gracilis Cara Witte 2007-6-14 287 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  HSC100560  Prosartes hookeri Carl C. Marshall Apr 1887 392 Humboldt Hoopa Valley. Comment
  HSC44447  Prosartes hookeri Brad Klipfel 1975-5-30 658 Humboldt N of Horse Mtn. Comment
  HSC15483  Prosartes smithii R. E. Hafenfeld 1965-5-9 66 Humboldt Fern Canyon, Gold Bluff Beach Comment
  CAS-BOT-BC517507  Prosartes smithii C. Epling; Wm. Robison 1935-7-24 s.n. Humboldt Dyerville Comment
  HSC59658  Prosartes smithii Marla J. Carollo 1979-4-10 4 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  UCSB27862  Prosartes smithii Phelps, M. 1972-3-20 Humboldt 0.5 mi. south of Redway on Old Hwy. 101, 1000 yds. from road toward river 182 Comment
  HSC98985  Prunella vulgaris Cara Witte 2007-7-3 410 Humboldt Brays Opening on National Forest 1. 1/2 mile north of intersection with 4N38. 1392 Comment
  HSC22530  Prunella vulgaris subsp. lanceolata Jerry Parker 1968-9-23 68 Humboldt 1/4 mi. S of Vista Point Comment
  UC577393  Prunella vulgaris var. lanceolata Joseph P. Tracy 1930-9-13 9183 Humboldt Jacoby Creek Valley 30 Comment
  UCD125337  Prunella vulgaris var. lanceolata Roman Gankin 1965-8-6 560 Humboldt 2.5 miles SW of Capetown. Comment
  CAS-BOT-BC159977  Prunus emarginata Doris K. Kildale 1927-6-26 3600 Humboldt Big Lagoon Comment
  HSC48761  Prunus emarginata Brad Klipfel 1973-6-10 97 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC183605  Prunus emarginata Joseph P. Tracy 1912-7-31 3922 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain Comment
  UC492199  Prunus virginiana var. demissa Joseph P. Tracy 1928-8-5 8493 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC356655  Pseudognaphalium californicum Joseph P. Tracy 1937-7-11 15415 Humboldt Vicinity of Garberville 121 Comment
  UC127827  Pseudognaphalium californicum Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5890 Humboldt Francis Ridge Comment
  UC165845  Pseudognaphalium californicum Joseph P. Tracy 1908-7-1 2911 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers) 914 Comment
  UC1173656  Pseudognaphalium thermale Joseph P. Tracy 1939-7-13 16348 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  OBI15564  Psilocarphus tenellus Joseph P. Tracy 2017-5-27 4783 Humboldt Northern Coast Ranges. Eureka 61 Comment
  UC1223168  Psilocarphus tenellus Joseph P. Tracy 1949-6-20 18320 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC76305  Pteridium aquilinum var. pubescens Denis Kearns 1981-7-22 308 Humboldt Near Whiteys Peak. 1487 Comment
  SEINET11722268  Pteridium aquilinum var. pubescens C. S. Kaut 2000-1 3 Humboldt Trinidad Comment
  HSC48700  Pterospora andromedea Brad Klipfel 1973-7-31 257 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC460597  Pyrola aphylla Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  CAS-BOT-BC460604  Pyrola aphylla Doris K. Kildale 1927-7-3 3632 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC462806  Pyrola dentata Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  UC1196363  Quercus X morehus Joseph P. Tracy 1916-6-19 4723 Humboldt North Fork of Dobbyn Creek Northern Coast Ranges 182 Comment
  JEPS37484  Quercus chrysolepis W. L. Jepson 1903-6 2204 Humboldt Briceland, Expedition from Ukiah to Southern Humboldt Co., via the Blue Rock Ridge and return via Fort Bragg Briceland Comment
  CAS-BOT-BC94307  Quercus garryana C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC667990  Quercus garryana Joseph P. Tracy 1935-10-6 14753 Humboldt Kneeland Prairie 762 Comment
  HSC99030  Quercus garryana var. garryana Cara Witte 2008-7-14 898 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  SEINET10477993  Quercus garryana var. garryana Jones 1985-6-6 Jones 111 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, quercus Chrysolepis, quercus vaccinifolia habitat 1128 Comment
  HSC35715  Quercus kelloggii Thomas W. Nelson 1975-10-12 2234 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC1196357  Quercus kelloggii Joseph P. Tracy 1940-10-15 16780 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC213004  Quercus sadleriana Joseph P. Tracy 1919-9-19 5259 Humboldt Trinity Summit Northern Coast Ranges 1676 Comment
  HSC54519  Quercus vacciniifolia Overton, Butler 1979-7-23 9446 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC98273  Quercus vacciniifolia Blaze Baker, Matthew Barmann, Michael Max Hentz 1993-4-30 2 Humboldt Horse Mtn. near the radio towers on the uphill side of 6N36 1510 Comment
  SFV17761  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine. 1463 Comment
  UCR165264  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest) on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine 1463 Comment
  HSC81826  Ranunculus alismifolius var. hartwegii Thomas W. Nelson 1979-7-11 5009 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1103018  Ranunculus arvensis Joseph P. Tracy 1940-5-17 16554 Humboldt Buck Mountain; lower foothills of nw slope 762 Comment
Read comments
Jun 18 2011
  JEPS5880  Ranunculus flammula Joseph P. Tracy 1937-5-30 15312 Humboldt near Bosworth's; Larrabee Creek 365 Comment
  HSC18216  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  HSC70330  Ranunculus occidentalis M. A. Baker 1980-6-8 1885 Humboldt Near Buck Flat. 1554 Comment
  UC162861  Ranunculus occidentalis Joseph P. Tracy 1903-5-24 1908 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  UC249653  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1922-5-21 6050 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  HSC95591  Ranunculus repens Andrea Pickart 2002-3-31 24 Humboldt Arcata Marsh, Dan Hauser Marsh 0 Comment
  HSC18191  Ranunculus uncinatus Jack Rockwell 1962-4-29 33 Humboldt N Bank of Van Duzen River, E of Hwy. 101 Comment
  UC503040  Ranunculus uncinatus Joseph P. Tracy 1928-4-29 8419 Humboldt Prairie Creek Northern Coast Ranges 152 Comment
  BLMAR510  Ranunculus uncinatus Jennifer Anthony-Wheeler 2009-5-9 510 Humboldt Headwaters Forest Reserve, HRC U08 road; spur to Elk River Comment
  POM118711  Ranunculus uncinatus var. parviflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  POM126158  Rhamnus californica subsp. occidentalis Joseph P. Tracy 1921-10-2 5963 Humboldt Kneeland Prairie. Comment
  CDA35696  Rhamnus californica subsp. occidentalis T. Gallion 1958-7-11 Humboldt Weitchpec. 0 Comment
  CAS-BOT-BC55966  Rhamnus ilicifolia L. R. Abrams 1927-9-11 12141 Humboldt Fork Klamath and Shasta Rivers Comment
  JEPS41950  Rhamnus purshiana W. L. Jepson 1902-6-24 1932 Humboldt Angel's Ranch to Korbel 365 Comment
  HSC7882  Rhododendron macrophyllum V. G. Vieira 1963-5-4 21 Humboldt Essex Pond Comment
  JEPS58777  Rhododendron macrophyllum Mr. and Mrs. Geo. B. Parrish 1930-5-21 Humboldt Trinidad Comment
  CHSC19505  Rhododendron neoglandulosum Norman Dennis 1965-6-3 143 Humboldt Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  SBBG5558  Rhododendron occidentale M. J. Cody 1938-7-14 Humboldt 2 mi N of Trinidad Comment
  CAS-BOT-BC200387  Rhododendron occidentale var. paludosum Harley P. Chandler 1901-6-1 1448 Humboldt Klamath River 457 Comment
  HSC96519  Rhododendron occidentale var. paludosum Gordon Leppig 1998-5-11 759 Humboldt Big Lagoon County Park. 3 Comment
  CAS-BOT-BC433140  Ribes W. R. Dudley 1899-6-21 s.n. Humboldt Near Pepperwood Comment
  CAS-BOT-BC433145  Ribes Doris K. Kildale 1928-7-1 5306 Humboldt French Camp on Orick-Martin's Ferry road 853 Comment
  HSC40828  Ribes binominatum Thomas W. Nelson, Jane P. Nelson 1976-7-26 3040 Humboldt Along ridge NW of Lassic Peak. 1707 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
  UCR139068  Ribes bracteosum E. Brower, S. Marubayashi, E. Perry 1997-5-10 055 Humboldt Intersection of Hwy 299 and Redwood Hwy 12 Comment
  CAS-BOT-BC108909  Ribes divaricatum var. pubiflorum Doris K. Kildale 1926-3-25 1619 Humboldt Liscom Hill. Lower Mad River. 30 Comment
  UC902083  Ribes lacustre Joseph P. Tracy 1949-6-6 18300 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC97283  Ribes laxiflorum M. Mesler 2007-3-23 745 Humboldt Near Trinidad, trail from Mill Creek to Elk Head. 61 Comment
  UC11588  Ribes lobbii Harley P. Chandler June 1901 1278 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  LA205539  Ribes marshallii Joseph P. Tracy; 1932-7-15 10592 Humboldt Klamath Mountains, Trinity Summit. ridges E of Corral Prairie 1828 Comment
  HSC34640  Ribes menziesii J. M. Sauser 1975-4-9 2 Humboldt Old Arcata Rd., 2 mi. S of junction with Jacoby Creek Rd. Comment
  HSC79481  Ribes menziesii Kenneth Clark 1980-3-27 559 Humboldt N fork of Dead Man's Gulch 82 Comment
  SBBG72058  Ribes menziesii H. E. Parks -Apr-1933 4402 Humboldt McNeils Crk, vicinity of Trinidad Comment
  UC1198930  Ribes menziesii Joseph P. Tracy 1938-4-5 15707 Humboldt North Fork of Mad River (its eastern limit here) Mad River 304 Comment
  RSA0021767  Ribes menziesii Joseph P. Tracy 1948-3-6 17954 Humboldt Trinidad. 61 Comment
  HSC70757  Ribes roezlii R. York 1980-5-17 526 Humboldt Near Le Perron Peak 792 Comment
  UCSB24364  Ribes roezlii Tracy, Joseph 1933-3-5 Humboldt north coast ranges 30 Comment
  RSA0024751  Ribes roezlii S. S. Tillett 1956-7-6 626 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  RSA0024752  Ribes roezlii Joseph P. Tracy 1950-8-4 19255 Humboldt Grasshopper Peak in Bull Creek State Park at head of Canoe Creek. Comment
  BLMAR653  Ribes roezlii var. cruentum Jennifer Wheeler 2012-5-9 653 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  UC667061  Ribes roezlii var. cruentum Joseph P. Tracy 1934-3-11 13153 Humboldt French Camp Ridge 1066 Comment
  CHSC24919  Ribes sanguineum M. B. Simpson 1976-4-10 19 Humboldt On w bank of West Haven Creek, ca. 20 yds n of Wagon Wheel Road, ca. .1 mi e of West Haven Dr, ca. 13 mi n of Arcata. 121 Comment
  HSC20341  Ribes sanguineum M. S. Miller 1965-4-2 18 Humboldt Arcata, HSC campus Comment
  CAS-BOT-BC144687  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-7-22 4693 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  UCR138884  Ribes sanguineum var. glutinosum E. Bower, S. Marubayashi, E. Perry 1997-5-10 52 Humboldt Titlow Hill Road, 0.5 mi past intersection with Hwy 299 762 Comment
  CAS-BOT-BC173989  Ribes viscosissimum Doris K. Kildale 1925-8-17 1199 Humboldt Trinity Summit 1917 Comment
  CAS-BOT-BC173992  Ribes viscosissimum J. H. Thomas 1949-6-13 913 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  HSC56118  Ribes viscosissimum Gilbert Muth 1979-8-1 11895 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC76261  Ribes viscosissimum Teresa Prendusi 1981-7-21 276 Humboldt Near Whiteys Peak 1646 Comment
  JEPS79969 Image available Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  HSC67214  Rigiopappus leptocladus Thomas W. Nelson, James Nelson 1980-6-10 5445 Humboldt Along branch road off Swayback Ridge Rd., 1/2 mi. E of junction 1372 Comment
  UCD115322  Rorippa palustris Joseph P. Tracy; H. E. Parks 1931-5-17 9425 Humboldt Trinity River near Willow Creek. 152 Comment
  UC902154  Rosa Joseph P. Tracy 1949-8-7 18438 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC527555  Rosa eglanteria C. B. Wolf 1931-8-28 2363 Humboldt 1/8 mi from kRohnerville on road to Fortuna Comment
  CAS-BOT-BC146486  Rosa gymnocarpa L. B. Kildale 1930-7-11 10334 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC58022  Rosa gymnocarpa G. L. Clifton 1979-7-31 11827 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  JEPS45670  Rosa gymnocarpa Joseph P. Tracy 1923-5-31 6241 Humboldt Eureka Northern Coast Ranges 0 Comment
  JEPS47241  Rosa gymnocarpa W. L. Jepson 1932-7-30 16462 Humboldt Bull Creek 121 Comment
  UC154526  Rosa gymnocarpa Mrs. M. H. Manning Sept. 1901 Humboldt near Hupa Comment
  UC667030  Rosa gymnocarpa Joseph P. Tracy 1936-8-7 15107 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  HSC98852  Rosa gymnocarpa var. serpentina Cara Witte 2008-6-18 748 Humboldt Horse Mountain Botanical Area. Approximately 1 mile east of junction 6N36 and 6N36A. 1394 Comment
  CAS-BOT-BC146834  Rosa nutkana L. R. Abrams 1916-7-20 6146 Humboldt Between Eureka and Alton Comment
  CAS-BOT-BC146839  Rosa nutkana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  HSC27851  Rosa nutkana Clifton Raymond Chesbrough 1973-6-19 61 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC44122  Rosa nutkana Linda M. Barker, Thomas F. Lyon 1977-5-8 1715 Humboldt 3 mi. W of Arcata in S pasture Comment
  HSC60162  Rosa nutkana J. P. Smith 1971-10-6 4970 Humboldt End of Murray Rd. in McKinleyville. Comment
  SBBG3082  Rosa nutkana H. and M. Dearing 1939-5-26 3448 Humboldt Bishop Pine Lodge, N of Trinidad Comment
  UC1199023  Rosa nutkana var. nutkana Joseph P. Tracy 1924-9-21 6892 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC1541247  Rosa nutkana var. nutkana H. E. Parks July 1933 4698 Humboldt vicinity of Trinidad Comment
  UC588192  Rosa nutkana var. nutkana H. E. and S. T. Parks May 1937 5816 Humboldt Spruce Cove Trinidad 60 Comment
  CHSC31292  Rosa pinetorum Mark Stopher 1980-7-11 115 Humboldt Along Elk River near Hwy 101 bridge. Comment
  HSC99508  Rosa pisocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 170 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
  UC902155  Rosa pisocarpa Joseph P. Tracy 1947-8-24 17890 Humboldt near Box Camp; Trinity Summit 1524 Comment
  RSA21585  Rosa spithamea Carl B. Wolf 1937-8-13 9230 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC148223  Rosa spithamea Volney Rattan 1883-6-1 s.n. Humboldt Trinity River, from Hyampom to Hoopa Comment
  HSC19652  Rubus macropetalus P. Markle 1962-5-22 60 Humboldt Along cross country track behind HSU in Arcata Community Forest Comment
  NY1043368  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  UC535747  Rubus parviflorus Eleanor Armstrong 1934-7-3 1166 Humboldt Richardson Grove 121 Comment
  UCD170575  Rubus parviflorus var. velutinus Gordon Leppig 1998-5-7 751 Humboldt Quarry Rd., off Jacoby Creek. 97 Comment
  CAS-BOT-BC156721  Rubus spectabilis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  UC902164  Rubus ursinus Joseph P. Tracy 1946-8-25 17637 Humboldt 2 mi s Field's Landing; s of Field's Landing 6 Comment
  HSC56448  Rudbeckia klamathensis Griswold, Butler 1979-7-12 7201 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC75259  Rudbeckia occidentalis J. O. Sawyer, M. A. Ericksen 1980-8-18 4053 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  RSA167402  Rudbeckia occidentalis Joseph P. Tracy 1948-9-12 18204 Humboldt Box Camp; Trinity Summit. 1463 Comment
  SEINET5710905  Rudbeckia occidentalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6104 Humboldt From California 299 at Hawkins Bar (In Trinity County), turn onto the road to Denny and travel 1.7 miles down this road toa fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to antoher fork in the road. Take the right fork (away from thr road leading to Waterman Ridge and Willow Creek). On the road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7 NO4N, the road to Groves Prairie. The collection site is a short distance up the road.; Groves Prairie Comment
  HSC32426  Rumex acetosella Linda M. Barker 1974-5-11 171 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC39979  Rumex crassus Linda M. Barker 1976-8-2 1672 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  UC672924  Rumex maritimus Harold E. Parks and Joseph P. Tracy 1934-10-13 11150 Humboldt Big Lagoon 6 Comment
  UC1225779  Rumex occidentalis Joseph P. Tracy 1948-9-12 18208 Humboldt Box Camp Trinity Summit 1463 Comment
  CAS-BOT-BC434096  Rumex transitorius L. R. Abrams 1918-6-16 7165 Humboldt Willow Creek Comment
  UC673062  Rupertia physodes Joseph P. Tracy 1935-6-23 13993 Humboldt French Camp Ridge 1066 Comment
  UC1222604  Rupertia physodes Joseph P. Tracy 1950-6-15 18783 Humboldt 7 mi n Harris; Mail Ridge, Jenk's Ranch Comment
  SEINET10501996  Ruppia maritima Mary Susan Taylor 1982-10-24 Taylor 5179 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC709432 Image available Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 17267 Humboldt sheep pasture near Hungry Hollow on Bald Mt. 609 Comment
  HSC4147  Sagina apetala W. L. Jepson 1921-8-7 9337 Humboldt Stone Lagoon Comment
  CHSC79815  Salix alba Gordon Leppig; Sylvia Leppig, Kai Leppig 2000-4-16 1297 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, West bank of Hauser Marsh. UTM zone 10, N4525 E407. 1 Comment
  CHSC9646  Salix exigua E. L. Smith 1971-8-17 1017 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  UC526710  Salix exigua H. E. Parks and Joseph P. Tracy 1934-7-25 11090 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges 152 Comment
  SBBG58938  Salix exigua var. hindsiana H. E. Parks 1931-8-25 1061 Humboldt Blue Slide, Vanduzen River 90 Comment
  UC481301  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 969 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  CAS-BOT-BC104106  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01332 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC106853  Salix hookeriana Jim Davis 1933-4-25 8 Humboldt Samoa Comment
  CAS-BOT-BC107716  Salix hookeriana Doris K. Kildale 1926-7-11 2364 Humboldt Mouth of Bear River - Capetown Comment
  CAS-BOT-BC107718  Salix hookeriana Doris K. Kildale 1927-5-14 3190 Humboldt Big Lagoon, coastal terrace. Comment
  CAS-BOT-BC107768  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1223 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  HSC19956  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-5 1103 Humboldt Little River Lagoon Comment
  HSC40879  Salix hookeriana Linda M. Barker 1976-6-14 1599 Humboldt 3 mi. W of Arcata, Lanphere-Christensen Dunes Comment
  JEPS12964  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  JEPS13092  Salix hookeriana Joseph P. Tracy 1936-2-23 14773 Humboldt Fortuna; bank of Eel River 15 Comment
  LA208757  Salix hookeriana Harold E. Parks; 1931-5-28 999 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM184870  Salix hookeriana H. E. Parks, Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon. Trinidad. At sea level. 0 Comment
  POM219563  Salix hookeriana H. E. Parks 1931-3-24 914 Humboldt Fortuna. Eel River. 10 Comment
  SBBG59105  Salix hookeriana H. E. Parks 1931-5-12 952 Humboldt Samoa, Humboldt Bay Comment
  UC1173586  Salix hookeriana Joseph P. Tracy 1936-8-17 15159 Humboldt Mad R. at mouth of Lindsey Creek; Mad R., Lindsey Creek 15 Comment
  UC1196550  Salix hookeriana Joseph P. Tracy 1946-6-15 17568 Humboldt at head of Willow Creek (Willow Creek Canyon along Trinity Hwy.); Willow Creek Canyon 822 Comment
  UC1356324  Salix hookeriana Theodore J. Crovello 1965-4-8 676 Humboldt along Somoa Rd about 200 ft n Samoa Club Comment
  UC303033  Salix hookeriana Joseph P. Tracy 1926-6-10 7345 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC469126  Salix hookeriana Joseph P. Tracy 1931-8-23 9617 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC481268  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon; in sand dunes Comment
  UC490460  Salix hookeriana Joseph P. Tracy 1932-5-10 9949 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC511985  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1246 Humboldt Blue Slide Van Duzen River (floodplain of river) 91 Comment
  UC1173620  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Fortuna Eel River 15 Comment
  JEPS14762  Salix jepsonii Joseph P. Tracy 1932-7-18 10724 Humboldt head of Brett Hole (Trinity Summit, Klamath Mts.); Klamath Mts., Trinity Summit 1828 Comment
  UC275503  Salix laevigata Joseph P. Tracy 1925-11-1 7301 Humboldt Shively, along Eel R. from S. Fork to Scotia Northern Coast Ranges, Eel R., Shively 60 Comment
  HSC37876  Salix lasiandra Thomas W. Nelson 1976-3-22 2278 Humboldt S side of the Eureka Muni Golf Course Comment
  CAS-BOT-BC125215  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1115 Humboldt Samoa Penn 3 Comment
  CAS-BOT-BC128195  Salix lasiandra var. lasiandra Marcus E. Jones 1924-4-25 s.n. Humboldt Dyerville Comment
  SD1004  Salix lasiandra var. lasiandra Harold E. Parks, Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  CAS-BOT-BC107106  Salix lasiolepis Joseph P. Tracy 1933-5-14 12184 Humboldt Berry's Mt., on TRinity Highway 762 Comment
  CAS-BOT-BC107578  Salix lasiolepis Joseph P. Tracy 1934-3-25 13166 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107597  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11007 Humboldt On Van Duzen River, two miles west of Bridgeville 228 Comment
  CAS-BOT-BC107625  Salix lasiolepis Joseph P. Tracy 1934-3-25 13167 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107645  Salix lasiolepis Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC98523  Salix lasiolepis Cara Witte 2007-7-3 409 Humboldt White Oak Opening. 1242 Comment
  JEPS12943  Salix lasiolepis Joseph P. Tracy 1930-6-15 8737 Humboldt near Bosworth's Larrabee Creek; Northern Coast Ranges 457 Comment
  JEPS12967  Salix lasiolepis Joseph P. Tracy 1931-9-26 9696 Humboldt at Redwood Creek Berry's; Northern Coast Ranges 274 Comment
  UC469413  Salix lasiolepis Joseph P. Tracy 1927-4-10 7888 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469421  Salix lasiolepis Joseph P. Tracy 1930-6-15 8737 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC490546  Salix lasiolepis Joseph P. Tracy 1932-4-24 9806 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC511984  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1249 Humboldt in ... floodplain of Eel River at Fernbridge; Eel R., Fernbridge Comment
  UC519336  Salix lasiolepis Joseph P. Tracy 1933-5-20 12264 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UCD111584  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-13 01255 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road. Comment
  UCD111587  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 01321 Humboldt Redwood Creek, at Berry's, on Trinity Highway. 274 Comment
  CDA39554  Salix lasiolepis Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  CDA39555  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  SEINET12003293  Salix lasiolepis J. P. Tracy 1950-1 18623 Humboldt Van Duzen River, 10 mi SE of Dinsmore's, 4 mi SE of Kuntz Comment
  POM214862  Salix lasiolepis var. sandbergii Joseph P. Tracy 1933-4-2 10959 Humboldt Berry's Mountain. On Trinity Hwy. E of Redwood Creek. 762 Comment
  HSC102022  Salix lucida subsp. lasiandra M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 923 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  CAS-BOT-BC125538  Salix lutea Arnold Tiehm; Brant Rogers 1978-4-27 4046 Humboldt West entrance to Thousand Creek Gorge, 1.2 road miles northeast of Virgin Valley Campground 1463 Comment
  JEPS12936  Salix melanopsis Joseph P. Tracy 1931-5-3 9344 Humboldt Mad River near Blue Lake; Northern Coast Region 15 Comment
  JEPS12953  Salix melanopsis Joseph P. Tracy 1932-5-10 9961 Humboldt Mattole River near Petrolia; Northern Coast Region 15 Comment
  POM219538  Salix melanopsis H. E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge. Trinidad. 75 Comment
  SD976  Salix melanopsis Harold E. Parks 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC1196650  Salix melanopsis Joseph P. Tracy 1932-10-12 10878 Humboldt along S Fork Eel R. Miranda; Northern Coast Ranges, S Fork Eel R. 121 Comment
  UC470452  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481284  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC481285  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UCR143008  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 0967 Humboldt North Coast, mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC129204  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 1251 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC129209  Salix piperi Doris K. Kildale 1929-2-28 6950 Humboldt Essex - Mad River Comment
  CAS-BOT-BC129132  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay, near sea level Comment
  CAS-BOT-BC129157  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  HSC56194  Salix scouleriana Gilbert Muth 1979-8-1 12137 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1196696  Salix scouleriana Joseph P. Tracy 1924-1-27 6599 Humboldt along Eel R. from S. Fork to Scotia (South Fork Station); Northern Coast Ranges, Eel R. 60 Comment
  UC470447  Salix scouleriana Joseph P. Tracy Jul 16 1930-Jul 19 1930 9095 Humboldt forest near McKay Camp (S. Fork Mt.); Northern Coast Ranges, S. Fork Mt. 1676 Comment
  UC5092  Salix scouleriana C. C. Marshall 1888-1 Humboldt 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
  HSC99439  Salix sitchensis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 89 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1196718  Salix sitchensis Joseph P. Tracy 1932-5-14 10063 Humboldt Scotia Bluffs Northern Coast Ranges, Scotia Bluffs 30 Comment
  UC481380  Salix sitchensis Harold E. Parks 1931-3-26 907 Humboldt on Van Duzen R. Alton; Van Duzen R., Blue Slide 15 Comment
  UC511968  Salix sitchensis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1256 Humboldt 2 mi. e. of Redwood Hwy. and above Blue Lake Rd. (floodplain of Mad R.); Mad R., Engelhart gravel pit Comment
  CDA39588  Salix sitchensis Peter Haggard 1993-4-17 s.n. Humboldt Van Duzen River west of Bridgeville on Hwy 36. 0 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
  HSC34273  Sambucus nigra subsp. caerulea K. Irwin 1975-8-13 Humboldt N Trinity Mtn. Comment
  HSC22838  Sambucus racemosa var. racemosa C. D. Hunter 1964-4-12 Humboldt 3 mi. S of Big Lagoon along Hwy. 101 Comment
  UC1225816  Sambucus racemosa var. racemosa Joseph P. Tracy 1947-8-24 17912 Humboldt e Box Camp; Trinity Summit 1676 Comment
  UC484082  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt along coastal bluffs 1 mi s Trinidad 91 Comment
  UC902070  Sambucus racemosa var. racemosa Joseph P. Tracy 1949-7-25 18399 Humboldt Trinidad 3 Comment
  CAS-BOT-BC157200  Sanguisorba officinalis L. B. Kildale 1930-7-11 10208 Humboldt Snow Camp head of Redwood Creek Comment
  HSC77517  Sanicula arctopoides K. Berg 1984-4-8 527 Humboldt South spit of Humboldt Bay, 1.4 mi. S of South Jetty, E of road Comment
  UC1197109  Sanicula bipinnatifida Joseph P. Tracy 1927-5-8 7989 Humboldt Garberville 152 Comment
  HSC89601  Sanicula crassicaulis M. Roantree 1985-4-28 16 Humboldt W side of Trinidad Head, along trail Comment
  JEPS272  Sanicula crassicaulis W. L. Jepson 1932-7-30 16457 Humboldt Bull Creek 91 Comment
  UC1022533  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  UC1222810  Sanicula crassicaulis Joseph P. Tracy 1950-2-12 18601 Humboldt 5 mi e of town of Carlotta (near Riverside Park) 30 Comment
  UC642310  Sanicula graveolens Joseph P. Tracy 1929-7-4 8614 A Humboldt French Camp Ridge 1066 Comment
  POM160882  Sanicula graveolens Joseph P. Tracy 1926-5-30 7520 Humboldt Willow creek canyon, local in serpentine formation near Ruby Cr. 610 Comment
  UC1197086  Sanicula laciniata Joseph P. Tracy 1921-4-24 5454 Humboldt facing South Fork Eel River (Northern Coast Ranges, Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  UC1198879  Saxifraga californica Joseph P. Tracy 1927-4-2 7882 Humboldt facing South Fork Eel River ( Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  JEPS26213  Saxifraga oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Trinity Summit, at Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  RSA0101646  Sceptridium multifidum Robert F. Thorne, Percy Everett 1965-8-7 35230 a Humboldt Big Lagoon. 3 Comment
  HSC7443  Schoenoplectus americanus D. E. Anderson 1961-9-9 1792 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon. Comment
  CAS-BOT-BC111704  Schoenoplectus pungens var. badius Doris K. Kildale 1927-6-25 3550 Humboldt Shelter Cove, coastal Comment
  SEINET4170940  Scirpus microcarpus Unknown 1914-9-13 4628 Humboldt At Eureka, Northern Coast Region 61 Comment
  HSC59709  Scoliopus bigelovii Clark L. Miller 1979-5-13 1128 Humboldt E of Hwy. 101 from Seawood Drive Comment
  HSC21129  Scrophularia californica D. E. Anderson 1961-8-11 1734 Humboldt Redwood preserve E of HSU campus 30 Comment
  HSC77906  Scrophularia californica L. P. Janeway, Paul Wilson 1984-5-7 759 Humboldt On the N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  JEPS120525  Scrophularia californica B. Castro and L. P. Janeway 2004-9-11 1476 Humboldt North Coast. Near blocked S end of Little River Road 0.25 mi N of Central Avenue; near S end of Clam Beach. Comment
  UC1011943  Scrophularia californica Francis W. Pennell 1940-7-6 26080 a Humboldt 2 mi nw Pepperwood (along Eel River, Rte 101) 30 Comment
  UC1239705  Scutellaria antirrhinoides Joseph P. Tracy 1927-7-24 8296 Humboldt Mattole Valley 152 Comment
  SEINET7718229  Scutellaria antirrhinoides Chesnut, Drew Humboldt Campbell's Comment
  UC154008  Scutellaria antirrhinoides Joseph P. Tracy 1908-6 2914 Humboldt nw slope of Buck Mountain; Northern Coast Ranges, Buck Mountain 1219 Comment
  UC25790  Scutellaria antirrhinoides Chesnut and Drew July 1888 Humboldt Campbells Comment
  UC577321  Scutellaria californica Joseph P. Tracy 1936-6-27 15004 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges, , South Fork Eel River 121 Comment
  HSC58160  Sedum divergens G. L. Clifton, Griswold 1979-8-2 12221 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC1222178  Sedum divergens Joseph P. Tracy 1935-7-24 14199 Humboldt near Ranger Station (Trinity Summit); , near Ranger Station 1828 Comment
  HSC99534  Sedum laxum subsp. flavidum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 199 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1829 Comment
  UC667081  Sedum laxum subsp. heckneri Joseph P. Tracy 1935-7-30 14363 Humboldt Salmon Summit 1767 Comment
  UC492242  Sedum obtusatum subsp. boreale Joseph P. Tracy 1932-7-17 10692 Humboldt head Devil's Hole (Trinity Summit, Klamath Mountains); Klamath Mountains, Trinity Summit, head Devil's Hole 1828 Comment
Read comments
Aug 17 2011
  JEPS25682  Sedum spathulifolium P. C. Hutchison 1961-5-21 2005 A Humboldt hiway US 101, 1/2 mi s Holbrook Grove boundary (1/2 mi n of Redway, 3 1/4 mi n of Garberville, rocks e of hiway facing nw); s of Holbrook Grove boundary, n of Redway, n of Garberville 167 Comment
  JEPS28948  Sedum spathulifolium P. C. Hutchison 1961-5-22 2029 Humboldt ca 5.4 mi n Orleans (e side Klamath River, high bluff along road); e side Klamath River, n of Orleans Comment
  RSA0074767  Sedum spathulifolium I. L. Wiggins 1932-6-18 5878 Humboldt Mouth of Little River. Comment
  HSC40630  Sedum spathulifolium var. spathulifolium Thomas W. Nelson, Jane P. Nelson 1977-5-15 3379 Humboldt Beside Hwy. 36 just W of Grizzly Creek Campground 152 Comment
  JEPS117941  Selaginella kraussiana Dana York, Adrian York & Noah York 2011-4-2 3019 Humboldt Arcata, eastern edge of Humboldt State University Campus 70 Comment
  HSC98958  Senecio integerrimus var. major Cara Witte 2008-7-28 950 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  UC1199245  Senecio integerrimus var. major Joseph P. Tracy 1933-6-13 12585 Humboldt near summit Hoopa Mountain (on road w from Hoopa to Bair's); Northern Coast Ranges 1219 Comment
  UC128743  Senecio integerrimus var. major Harley P. Chandler 1086 Humboldt Harris North Coast Ranges 304 Comment
  CDA7631  Senecio jacobaea E. Eberwein 1958-9-4 1197 -58 Humboldt William Lowry property, Bear River, Ferndale. 0 Comment
  UC1118080  Senecio minimus H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quad., Fieldbrook Comment
  UC917220  Senecio minimus J. M. Tucker 1948-9-4 1863 Humboldt Becks Ranch, Hydesville Comment
  UCD135606  Senecio minimus R. Tofsrud Date Unknown s.n. Humboldt Between Capetown and Ferndale. Comment
  UCD20172  Senecio triangularis J. M. Tucker 1948-9-3 1857 Humboldt Near junction of Friday Ridge road and Horse Mountain-Grouse Mountain Road. Comment
  SEINET11802700  Senecio vulgaris J. P. Tracy 1943-1 17454 Humboldt Eel River Bar at mouth of Van Duzen, near Alton Comment
  CAS-BOT-BC85836  Sequoia sempervirens Doris K. Kildale 1929-1-27 6926 Humboldt Stevens Grove - South Fork Eel River Comment
  UC602552  Sherardia arvensis Joseph P. Tracy 1937-6-20 15337 Humboldt 10 mi from mouth Bear River Comment
  JEPS67224  Sidalcea malachroides Joseph P. Tracy 1918-7-1 4964 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, Eel River from South Fork to Scotia 60 Comment
  RSA168965  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19033 Humboldt Butter Valley Road, 2 miles east of Cameron Hill jct. near Kneeland. Comment
  UC203995  Sidalcea malachroides Joseph P. Tracy 1918-7-1 4964 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River from South Fork to Scotia 60 Comment
  UC668135  Sidalcea malachroides Joseph P. Tracy 1938-6-7 15860 Humboldt 5 mi se Korbel; Canyon Creek 152 Comment
  BLMAR281  Sidalcea malviflora subsp. patula Jennifer Anthony-Wheeler 1999-5-28 281 Humboldt King range, growing along windy pt rd about 1/2 way to the spring exclosure 140 Comment
  UC668134  Sidalcea malviflora subsp. patula Joseph P. Tracy 1936-6-9 14877 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC902188  Sidalcea oregana subsp. eximia Joseph P. Tracy 1947-8-24 17898 Humboldt Box Camp Meadow , Box Camp Meadow (Trinity Summit) 1463 Comment
  HSC103762  Silene M. R. Mesler, Sydney Carothers 2013-6-3 1481 Humboldt Near Castle Rock on FS 5N40 about 3.2 miles from NF 60 1248 Comment
  UC1198367  Silene antirrhina Joseph P. Tracy 1919-5-31 5168 Humboldt along Willow Creek ((Tributary of Trinity River) near its mouth); Northern Coast Ranges, along Willow Creek 152 Comment
  UC1198364  Silene antirrhina Joseph P. Tracy 1911-7-12 3519 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges, btw Three Creeks and mouth Willow Cre 762 Comment
  HSC103725  Silene bolanderi M. R. Mesler, C. Wilson 2010-6-18 825 Humboldt Along Hwy 36 near pmm 32.53 771 Comment
  HSC103773  Silene bolanderi M. R. Mesler 2014-6-4 1635 Humboldt Burr Valley Road near Dinsmore 1049 Comment
  UC1198353  Silene californica Joseph P. Tracy 1938-7-7 16040 1/2 Humboldt Grouse Mountain 1524 Comment
  UC161054  Silene californica Harley P. Chandler May, 1901 1259 Humboldt North Coast Ranges, Redwood Belt North Coast Ranges 152 Comment
  RSA12455  Silene californica C. B. Wolf 1934-6-30 5838 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  HSC74456  Silene campanulata Gail Newton 1980-8-10 2011 Humboldt Near Blake Mtn. 1798 Comment
  UC8432  Silene campanulata subsp. campanulata Bolander 1866-1 6517 Humboldt Red Mountain Comment
  HSC32481  Silene campanulata subsp. glandulosa Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  UC13562  Silene campanulata subsp. glandulosa Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC39220  Silene campanulata subsp. glandulosa D. E. Anderson, J. P. Smith 1971-7-6 - 1322 Humboldt On Horse Mtn. Comment
  CAS-BOT-BC384424  Silene coronaria Philip A. Munz 1952-6-27 17799 Humboldt Boise Creek Public Camp west of Willow Creek 365 Comment
  HSC57065  Silene douglasii Overton, Butler 1979-7-24 9735 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  CAS-BOT-BC387078  Silene gallica Doris K. Kildale 1927-5-15 3166 Humboldt Cape Mendocino Comment
  UCD98626  Silene gallica Linda M. Barker 1976-6-14 1593 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC387076  Silene gallica Doris K. Kildale; L. B. Kildale 1930-5-27 9527 Humboldt Gunther's Island in Humboldt Bay Comment
  HSC48611  Silene gallica Mark Flippo 1978-5-18 62 Humboldt Hwy. 101 N jct. with Giuntoli Lane Comment
  HSC44729  Silene laciniata subsp. californica Maralyn O'Meara 1972-6-8 78 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UC668192  Silybum marianum Joseph P. Tracy 1938-7-6 16026 Humboldt Big Lagoon 12 Comment
  UC160974  Sisymbrium officinale Joseph P. Tracy 1908-6 2808 Humboldt Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges 762 Comment
  SEINET6744566 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
  UC1197805  Smilacina racemosa Joseph P. Tracy 1936-8-7 15106 1/2 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UC666975  Smilacina racemosa Joseph P. Tracy 1938-7-7 16038 Humboldt Grouse Mountain 1524 Comment
  HSC38086  Solanum parishii Thomas W. Nelson, James Nelson 1976-5-30 2607 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC96295  Solanum parishii J. Breton, A. Livingston 2005-6-15 12 Humboldt NE of Grouse Mtn. 1327 Comment
  POM247118  Solidago californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  RSA473662  Solidago canadensis subsp. elongata M. B. Dunkle 1936-8-18 4812 Humboldt Fortuna. Comment
  JEPS32394  Solidago elongata Lincoln Constance 1934-6-25 925 Humboldt on Redwood Highway 4 mi n of Dyerville and n boundary Humboldt Redwood Park (Englewood, Bull Creek Region, South Fork Eel River); South Fork Eel River, Bull Creek Region, Englewood Comment
  UC1199323  Solidago elongata Joseph P. Tracy 1940-9-26 16735 Humboldt near Still Ranch (2 mi s of Fields Landing) 9 Comment
  UC169036  Solidago elongata Joseph P. Tracy 1912-8-1 3955 Humboldt valley Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC365661  Solidago spathulata Greg de Nevers 2001-4-18 12255 Humboldt Lanphere-Christenson dunes, near Arcata 9 Comment
  RSA24389  Solidago spathulata C. B. Wolf 1941-2-22 9916 Humboldt Little River Beach State Park (north of Arcata). 8 Comment
  UC1541471  Solidago spathulata J. P. Tracy 1924-9-21 6900 Humboldt Eureka Comment
  UC741150  Solidago spathulata S. K. Harris 1939-9-5 990 Humboldt Samoa Comment
  BLMAR663  Solidago velutina subsp. californica Jennifer Wheeler 2012-7-12 663 Humboldt King range, Strawberry rock 253 Comment
  HSC6224  Sonchus oleraceus J. W. Johnson 1961-8-17 1043 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC102103  Sorbus sitchensis var. sitchensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1006 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC93850  Spartina densiflora Gordon Leppig, Kai Neander 1999-4-30 1131 Humboldt Humboldt Bay, Eureka, 30 m S of Del Norte St. fishing pier 1 Comment
  RSA796313  Spartina foliosa D. Kearns 1979-8-24 20 Humboldt Arcata Bay. Near the Arcata Boat Launching Facility at the south end of I Street. Comment
  HSC4234  Spergula arvensis D. E. Anderson 1961-9-13 1823 Humboldt Comment
  CAS-BOT-BC390303  Spergularia macrotheca var. macrotheca Robert F. Thorne; P. Everett 1965-8-8 35277 Humboldt N edge of Eureka, E of Hwy. 101 3 Comment
  JEPS45003  Spiraea densiflora Joseph P. Tracy 1926-6-20 7630 Humboldt Horse Mountain; Northern Coast Ranges 1463 Comment
  UC1199030  Spiraea douglasii J. P. Tracy 1901-6-30 1198 Humboldt immediate vicinity Eureka 0 Comment
  RSA249514  Spiranthes romanzoffiana Robert F. Thorne, Percy C. Everett 1965-8-5 35154 Humboldt Samoa Dunes. 3 Comment
  HSC14427  Stachys ajugoides H. E. Parks, S. T. Parks Aug 1943 24252 Humboldt Spruce Cove, Trinidad. 61 Comment
  JEPS63032  Stachys ajugoides var. rigida Milo S. Baker 1923-7-20 72 Humboldt 4 mi e Eureka; North Coast Comment
  UC1222862  Stachys ajugoides var. rigida Joseph P. Tracy 1950-6-8 18761 Humboldt near Petrolia (w slope of hill, leading from the coast toward town, hills between town and Ocean); Domingo Hill Comment
  UC1225845  Stachys ajugoides var. rigida Joseph P. Tracy 1942-7-1 17364 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  UC538020  Stachys arvensis Lyle W. Smith 1934-11-14 Humboldt Arcata Comment
  HSC59567  Stachys arvensis Rick Lundquist 1979-4-9 5 Humboldt Arcata, St. Louis Rd., .1 mi. N of Hwy. 101 overpass 15 Comment
  BLMAR186  Stachys bergii Donald Hazlett 1994-6-7 186 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC96495  Stachys chamissonis Gordon Leppig 1997-6-19 458 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  SDSU7904  Stachys chamissonis Harvey 1938-8-13 2269 Humboldt North of Arcata. Comment
  UC1239727  Stachys chamissonis Joseph P. Tracy 1906-6-24 2496 Humboldt region about Humboldt Bay (s slope of Humboldt Hill); Northern Coast Region 0 Comment
  UC25942  Stachys chamissonis H. M. Hall 1899-10-17 Humboldt Arcata Comment
  POM301655  Stachys chamissonis Carl B. Wolf 1941-7-28 11087 Humboldt between the redwood highway and Crannell. 8 Comment
  SEINET10499253  Stachys chamissonis H. Lewis 1940-7-3 Lewis s.n. Humboldt Little river beach state park Comment
  RSA22551  Stachys emersonii H. E. Parks, S. T. Parks 1937-07 24025 Humboldt Spruce Cove, Trinidad. Comment
  HSC14419  Stachys mexicana William J. Ferlatte 1963-5-8 40 Humboldt Near B and 17th Sts., Arcata. Comment
  HSC23710  Stachys rigida Tim Baroni 1971-6-25 38 Humboldt Comment
  RSA20782  Stachys rigida subsp. rigida Carl B. Wolf 1937-8-13 9246 Humboldt North Coast Range 11 mi. E. of Hoopa Valley on New Road towards Trinity Summit. 1524 Comment
  HSC58075  Stachys rigida var. rigida G. L. Clifton, Griswold 1979-8-1 11970 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC161055  Stellaria media Joseph P. Tracy 1907-5-20 2562 Humboldt Eureka; Northern Coast Region 0 Comment
  UC1198343  Stellaria nitens Joseph P. Tracy 1908-6 2737 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS79991  Stellaria obtusa Joseph P. Tracy 1935-7-23 14161 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC375783  Stephanomeria virgata Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC32338  Stipa lemmonii D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5643 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC58676  Stipa occidentalis var. californica Gilbert Muth 1979-8-1 12181 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC58570  Stipa occidentalis var. occidentalis G. L. Clifton, Griswold 1979-7-26 10297 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CAS-BOT-BC87607  Streptanthus tortuosus Doris K. Kildale 1928-5-27 5955 Humboldt Kneeland Prairie. 853 Comment
  POM126166  Streptanthus tortuosus Joseph P. Tracy 1922-9-3 6106 Humboldt Klamath River at Bluff Creek. 152 Comment
  UC162599  Streptanthus tortuosus Harley P. Chandler June 1901 1441 Humboldt Klamath River North Coast Ranges 304 Comment
  UCD84700  Streptanthus tortuosus Robert E. Preston 2009-5-27 2681 Humboldt 5.9 mi S of Weitchpec, along Hwy 96. 188 Comment
  JEPS54025  Streptanthus tortuosus var. orbiculatus W. L. Jepson Jul 16 1902-Jul 23 1902 2118 Humboldt Trinity Summit 2133 Comment
  SEINET4173984 Image available Streptopus amplexifolius Joseph P. Tracy 1923-6-24 6366 Humboldt Bald Mountain, near High Prairie 1067 Comment
  HSC103688  Streptopus amplexifolius M. R. Mesler 2013-7-24 1629 Humboldt Big Hill Road at boundary of SRNF and Hoopa land 1442 Comment
  RSA520556  Streptopus amplexifolius Michael A. Hanson 1990-5-21 72 Humboldt On Little Creek Trail in Redwood National Park; east side of Highway 101 approximately 7 miles (11.3 km) south of Klamath Comment
  UC1103496  Streptopus amplexifolius var. americanus Joseph P. Tracy 1949-6-25 18346 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC74293  Swertia radiata M. A. Baker 1980-7-22 3084 Humboldt Near Salmon Mtn. 1820 Comment
  CAS-BOT-BC269569  Symphoricarpos albus var. laevigatus Doris K. Kildale 1928-6-9 5085 Humboldt Eureka Comment
  HSC99624  Symphoricarpos albus var. laevigatus Thomas W. Nelson, James Nelson 1975-9-3 2196 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  HSC5049  Symphyotrichum chilense Paul Shields 1955-9-20 Humboldt HSC Campus Comment
  UC1199311  Symphyotrichum chilense Joseph P. Tracy 1939-9-4 16475 Humboldt Buck Mt., nw slope Buck Mt. 762 Comment
  UC581687  Symphyotrichum hendersonii Joseph P. Tracy 1937-8-12 15634 Humboldt Snow Camp 1402 Comment
  UC902207  Synthyris reniformis Joseph P. Tracy 1941-4-8 16810 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 609 Comment
  HSC49169  Synthyris reniformis J. O. Sawyer 1977-4-23 2836 Humboldt Along Big Hill Rd., E of Hoopa Comment
  JEPS9927  Synthyris reniformis Joseph P. Tracy 1923-3-10 6152 Humboldt Van Duzen River, near Grizzly Creek; Van Duzen River 91 Comment
  UC582543  Synthyris reniformis Joseph P. Tracy 1923-3-10 6152 Humboldt Van Duzen River, near Grizzly Creek; Van Duzen River 91 Comment
  UC902237  Synthyris reniformis Joseph P. Tracy 1941-3-26 16812 1/2 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 457 Comment
  HSC33751  Tanacetum bipinnatum A. Montalvo 1975-5-24 288 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC6244  Tanacetum bipinnatum Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  UC579388  Tanacetum camphoratum H. S. Yates 1936-6-16 5651 Humboldt 0.5 mi sw Samoa; Eureka Quad. 6 Comment
  HSC6268  Taraxacum officinale Francis Winter 1960-4-24 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC38893  Tauschia kelloggii J. P. Smith, J. O. Sawyer 1973-5-12 6684 Humboldt 3.8 mi. from Redwood Creek on Hoopa road 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
  UC1197068  Tauschia kelloggii Joseph P. Tracy 1936-6-17 14943 Humboldt Bridgeville 198 Comment
  SEINET3876099 Image available Taxus brevifolia M. C. Hartman 1963-3-30 8 Humboldt Highway 299 1 mile E. of Berry Summit.; 0 Comment
  UC463017  Taxus brevifolia E. B. Copeland 1931-8-18 Humboldt below Densmore; Van Duzen River Comment
  POM117233  Tellima grandiflora Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UCD170789  Tellima grandiflora Gordon Leppig; Sylvia Leppig and Kai Neander 1998-5-6 745 Humboldt Rt. 101. Overlooking Big Lagoon. 40 Comment
  UC160922  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1908-6 2769 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC399767  Thalictrum polycarpum Alice Eastwood 1921-7-21 10669 Humboldt Vanduzen [Van Duzen] River, on the road Comment
  UC673059  Thermopsis gracilis Joseph P. Tracy 1933-8-6 12955 Humboldt French Camp Ridge 1066 Comment
  UC10967  Thlaspi montanum var. montanum Harley P. Chandler June, 1901 1377 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 182 Comment
  UC1198812  Thlaspi montanum var. montanum Joseph P. Tracy 1911-7-11 3516 Humboldt hills along Supply Creek (Hupa Valley); Northern Coast Ranges, , Supply Creek 304 Comment
  HSC13053  Thuja plicata D. Santana, C. Kline Oct 1970 9 Humboldt HSC Campus Comment
  SBBG56417  Thuja plicata H. E. Parks 1932-7-25 1139 Humboldt Camp 21, Hammond Lumber Co, Trinidad 152 Comment
  SEINET3866804  Thuja plicata Jack D. Brotherson 1982-7-14 3315 Humboldt Ca 25 miles north of Arcata along U.S. Hwy 101.; 0 Comment
  SDSU9574  Tiarella Harvey 1938-8-14 2320 Humboldt Between Arcarta & Willow Creek, US 299. Comment
  JEPS49704  Tiarella trifoliata var. unifoliata W. L. Jepson 1932-7-29 16441 Humboldt Weott Comment
  UCR124075  Tiarella trifoliata var. unifoliata George K. Helmkamp, E. A. Helmkamp 2001-7-8 6971 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  RSA191949  Tiarella trifoliata var. unifoliata R. F. Thorne 1957-9-2 18998 Humboldt Burlington State Park, just S of Weott. Comment
  RSA304700  Tiarella trifoliata var. unifoliata S. Ganley 1971-5-30 1156 Humboldt Ave of Giants; Humboldt State Park. 152 Comment
  SD50778  Tiarella trifoliata var. unifoliata Darley F. Howe 1959-8-5 2809 Humboldt Drexel Grove, 5 miles north of Weott on #101 alternate Comment
  UC1198898  Tiarella trifoliata var. unifoliata Joseph P. Tracy 9062 Humboldt near McKay Camp South Fork Mountain; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC11943  Tolmiea diplomenziesii J. Burtt Davy Jun 1899 5628 Humboldt Hoopa Mt.; North Coast Ranges Comment
  UC1222359  Tolmiea diplomenziesii Joseph P. Tracy 1950-6-15 19040 Humboldt vicinity Willow Creek (near mouth of Raccoon Creek, 1 mi ne of Patterson's Ranch) Comment
  CAS-BOT-BC447613  Tolmiea menziesii Alice Eastwood; John Thomas Howell 1937-6-23 4781 Humboldt Near Dinsmore's Comment
  UC147861  Tonella tenella Joseph P. Tracy 1908-6 2736 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC444981  Tonella tenella Mrs. M. H. Manning May 1902 Humboldt near Hupa Comment
  HSC21588  Torilis arvensis P. W. Shields May 1955 Humboldt HSC campus Comment
  HSC45466  Torilis arvensis Thomas W. Nelson, Jane P. Nelson 1978-7-2 4387 Humboldt Along Hwy. 36 1 mi. E of Grizzly Creek Comment
  CAS-BOT-BC169181  Toxicodendron diversilobum Doris K. Kildale 1928-5-31 5114 Humboldt Chalk Mountain Comment
  HSC49820  Toxicodendron diversilobum R. York 1979-4-21 244 Humboldt Behind the town of Korbel, Camp Bauer Comment
  JEPS63914  Toxicodendron diversilobum W. L. Jepson 1932-7-27 16430 Humboldt on way to Bull Creek Dyerville Comment
  HSC75391  Trautvetteria caroliniensis J. O. Sawyer, M. A. Ericksen 1980-7-18 3639 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  BLMAR156  Trientalis latifolia Donald Hazlett 1994-6-7 156 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  JEPS43093  Trientalis latifolia Lincoln Constance 1934-6-1 775 Humboldt Mouth of Bull Creek, Bull Creek Road, between Dyerville Bridge and Bull Creek, South Fork Eel River Bull Creek; Bull Creek Region, South Fork Eel River 45 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
  UC160917  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1910-6-5 3151 Humboldt Ocean Beach Northernb Coast Ranges, Humboldt Bay Comment
  UC162800  Trifolium barbigerum J. P. Tracy 1906-6-17 2491 Humboldt immediate vicinity Eureka 0 Comment
  HSC100528  Trifolium bifidum Carl C. Marshall Jun 1885 33 Humboldt Bear River. Comment
  HSC15111  Trifolium depauperatum Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  UC495733  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1932-5-10 9948 Humboldt near Petrolia (Mattole River); Northern Coast Ranges 15 Comment
  UC1542872  Trifolium dubium Harold E. Parks May 1934 4324 Humboldt Spruce Cove Trinidad Comment
  UC33413  Trifolium eriocephalum var. eriocephalum W. C. Blasdale 1896-6-7 Humboldt Mad River Comment
  UC1197033  Trifolium fucatum Joseph P. Tracy 1932-5-10 9963 Humboldt near Petrolia (Mattole River); North Coast Ranges 15 Comment
  CDA27949  Trifolium fucatum T. C. Fuller 1958-6-17 1720 Humboldt Petrolia, Lower Mattole. 0 Comment
  HSC15123  Trifolium fucatum R. A. Rasp 1964-5-17 38 Humboldt 1 mi. S of Arcata beside Hwy. 101 Comment
  UC1197196  Trifolium gracilentum Joseph P. Tracy 1901-5-18 1096 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  UCD23426  Trifolium incarnatum Eileen Burger 1977-5-8 30 Humboldt Crimson clover, flowers in heads. North oak woodland. West side of Hwy 101, 1/4 mile north of Garberville on frontage road. Comment
  HSC70238  Trifolium longipes M. A. Baker 1980-6-8 1902 Humboldt Near Buck Flat. 1554 Comment
  HSC101996  Trifolium longipes subsp. hansenii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 895 Humboldt Patterson Meadows 1555 Comment
  UC162843  Trifolium macraei J. P. Tracy 1900-6-5 843 Humboldt vicinity Eureka (Bucksport) 0 Comment
  HSC45143  Trifolium microcephalum R. Sutherland 1978-5-12 12 .12578 Humboldt 282 Comment
  UC1197505  Trifolium microdon Joseph P. Tracy 1932-5-16 10109 Humboldt near Samoa; Northern Coast Ranges, Humboldt Bay 6 Comment
  CDA28005  Trifolium microdon E. C. Whitney 1978-5-25 Humboldt Art Tooby property, Harris. 0 Comment
  UC1223340  Trifolium obtusiflorum Joseph P. Tracy 1934-6-3 13205 Humboldt recently cleared land at Park's Place Trinidad Comment
  UCSB30597  Trifolium pratense Edwards, David 1974-7-13 Humboldt North side of 7th St. just W. of its overpass of U.S. 101, Arcata 18 Comment
  SD90164  Trifolium repens Benjamin C. Stone 1952-6-21 117 Humboldt Stone Lagoon on Hwy 101 14 Comment
  HSC99477  Trifolium repens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 135 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC45130  Trifolium variegatum R. Sutherland 1978-6-1 2 .1678 Humboldt 282 Comment
  HSC32919  Trifolium willdenovii Thomas W. Nelson, James Nelson 1973-5-28 966 Humboldt McKeown Ranch N of Dinsmore Comment
  UC303199  Trifolium willdenovii Joseph P. Tracy 1925-5-17 6967 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  CHSC68785  Trifolium wormskioldii Vernon Oswald 1997-6-5 8540 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. Along the road to the jetty. 6 Comment
  RSA639406  Trifolium wormskioldii Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35225 b Humboldt Samoa Peninsula. 3 Comment
  RSA90994  Trifolium wormskioldii F. W. Peirson 1923-7-11 3619 Humboldt Along road 7 miles north of Arcata. Comment
  SEINET12156843  Trifolium wormskioldii J. P. Tracy 1938-1 16056 Humboldt Field's Landing, 2 mi S of town 6 Comment
  HSC90808  Triglochin concinna Gail Newton 1982-5-2 2511 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC82962  Triglochin concinna A. L. Eicher 1985-6-19 Humboldt Bordering the SW side of the mouth of Mad River Slough, in Humboldt Bay 1 Comment
  HSC90318  Triglochin concinna Jean Hanson 1981-5-10 138 Humboldt Indian Island, Humboldt Bay, city of Eureka, W end of island Comment
  SEINET3151087  Triglochin maritima N. Dennis 1965-6-8 101 Humboldt along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  HSC14167  Triglochin maritima S. J. Moore 1965-5-8 15 Humboldt Marsh adjacent to Mad River Slough. Comment
  HSC49396  Triglochin maritima R. York 1979-4-13 228 Humboldt Boat dock at Big Lagoon Comment
  RSA320510  Triglochin striata M. S. Taylor 1982-10-24 5179 Humboldt Samoa, under bridge, ca. 1 mile northwest of Eureka 0 Comment
  UCR179285  Trillium R. G. Swinney 1968-3-8 217 Humboldt Arcata 152 Comment
  UCD139896  Trillium albidum R. N. Raynor 1935-3-13 s.n. Humboldt Fort Seward. Comment
  HSC28003  Trillium albidum Maralyn O'Meara 1972-5-29 77 Humboldt 18.6 mi. up Bald hills Rd. from junction with Hwy. 101 near Orick 915 Comment
  HSC48743  Trillium ovatum Brad Klipfel 1973-6-10 68 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74571  Trillium ovatum M. A. Baker 1980-5-17 1192 Humboldt Near Le Perron Peak 792 Comment
  SEINET3991731  Trillium ovatum Unknown 1913-2-9 Humboldt Near Hydesville Comment
  UC1197824  Trillium ovatum Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  UC1197827  Trillium ovatum Joseph P. Tracy 1912-3-3 3561 Humboldt at Eureka Eureka; Northern Coast Region 0 Comment
  CAS-BOT-BC521314  Trillium rivale Doris K. Kildale 1930-6-1 9739 Humboldt Klamath River at Bluff Creek 152 Comment
  CAS-BOT-BC521319  Trillium rivale Volney Rattan 1883-6-1 s.n. Humboldt Willow Creek; Pacific Coast Comment
  JEPS11779  Triodanis perfoliata W. L. Jepson 1902-6 1940 Humboldt Green Point Ranch Redwood Creek (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
  HSC26329  Triphysaria eriantha subsp. eriantha Thomas W. Nelson 1971-4-16 382 Humboldt N of Coast Guard Station on Samoa Peninsula Comment
  UC146241  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1906-6-10 2477 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC951233  Triphysaria eriantha subsp. eriantha S. K. Harris 1942-6-10 1474 Humboldt Prairies Bear River Ridge Bear River Ridge; , Prairies 457 Comment
  UC1198036  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1911-5-30 3207 Humboldt sandy fields at Bucksport (at Eureka); Northern Coast Region 0 Comment
  UC1198043  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1927-4-24 7928 Humboldt Eureka 6 Comment
  CAS-BOT-BC199619  Trisetum canescens J. P. Tracy 1903-5-22 1877 Humboldt Alder Point on Eel River 152 Comment
  UC1541569  Trisetum canescens Harold E. Parks Jun 1934 1987 Humboldt Spruce Cove; Trinidad Comment
  UC163654  Trisetum canescens Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5494 -5 Humboldt Camp Grant; North Coast Ranges Comment
  UC34062  Trisetum canescens J. P. Tracy 1901-6-23 1167 Humboldt immediate vicinity Eureka 0 Comment
  UC552800  Trisetum canescens Joseph P. Tracy 1935-7-25 14235 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  UCD93602  Trisetum canescens P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  HSC13424  Trisetum cernuum E. W. Styskel 1964-5-8 84 Humboldt 2 mi. W of Rio Dell off Blue Slide Rd. Comment
  JEPS75416  Trisetum cernuum W. L. Jepson 1932-7-26 16420 Humboldt Bull Creek 121 Comment
  UC1103152  Trisetum cernuum Joseph P. Tracy 1935-5-24 13813 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC3038  Triteleia hyacinthina D. E. Anderson 1962-7-14 2259 Humboldt Along Barry Ridge Rd. Comment
  UC1197713  Triteleia hyacinthina Joseph P. Tracy 1925-5-30 7047 Humboldt McClellan Mountain Northern Coast Ranges, McClellan Mountain 822 Comment
  HSC39173  Triteleia laxa D. E. Anderson, J. P. Smith 1971-6-28 - 1229 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC97626  Triteleia laxa Cara Witte 2007-6-19 300 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  HSC35821  Triteleia laxa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1918 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  SEINET12053141  Triteleia laxa K. S. Erdman 1970-1 4768 Humboldt S slope of Schoolhouse Peak on Bald Hills Road, about 16 mi S of Orick 914 Comment
  UC1197721  Triteleia laxa J. P. Tracy 1906-6-24 2504 Humboldt s slope of hill near Fields Landing; Humboldt Hill 30 Comment
  IRVC27661  Triteleia peduncularis J. P. Tracy 1898-7-5 266 Humboldt Immediate vicinity of Eureka; near Ryan's Slough Hill. 0 Comment
  CDA2565  Triticum aestivum Gordon Leppig, Sylvia Leppig, K. Neander 2000-4-14 1293 Humboldt East of Community Center parking lot, Arcata. Comment
  RSA648962  Tsuga heterophylla David J. Keil 1983-7-2 17305 Humboldt Freeway exit from US 101 at Patrick s Point. Comment
  BLMAR193  Turritis glabra Donald Hazlett 1994-6-7 193 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC73932  Turritis glabra Doris K. Kildale 1926-4-30 1949 Humboldt Fruitland Hill - Harris Road divided between north and south forks of Eel River. Comment
  UC153975  Typha latifolia Joseph P. Tracy 1910-10-8 3168 Humboldt region about Humboldt Bay Brainard's Point; Northern Coast Region, region about Humboldt Bay 0 Comment
  CDA4354  Ulex europaeus T. C. Fuller 1958-6-17 1714 Humboldt T. J. Cotter property, mouth of Elk River, Eureka. 0 Comment
  CAS-BOT-BC91108  Umbellularia californica Doris K. Kildale 1927-8-16 2515 Humboldt Upper Willow Creek Flat - Trinity River Valley. 152 Comment
  HSC40296  Umbellularia californica Lloyd Simpson 1977-4-17 253 Humboldt Warren Creek Rd. 0.25 mi. from West End Rd. 30 Comment
  HSC62995  Umbellularia californica David Wheeler 1979-5-8 98 Humboldt 927 J St. Arcata Comment
  UC153974  Urtica dioica subsp. gracilis J. P. Tracy 1910-10-1 3166 Humboldt immediate vicinity of Eureka 0 Comment
  UC30064  Vaccaria hispanica Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  CAS-BOT-BC193962  Vaccinium cespitosum Doris K. Kildale 1927-7-10 3725 Humboldt Gans Prairie, Bald Hills Comment
  UC1197770  Vaccinium cespitosum J. P. Tracy 1896-4-29 2425 Humboldt immediate vicinity Eureka; , Ricks Prairie 0 Comment
  UC562347  Vaccinium cespitosum Joseph P. Tracy 1933-7-16 12792 Humboldt near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC26397  Vaccinium ovatum T. O. Osborne 1970-9-16 31 Humboldt Trinidad Bay, Prisoner Rock Comment
  RSA22543  Vaccinium ovatum H. E. Parks, S. T. Parks, C. R. Parks 1937-04 5638 Humboldt Spruce Cove, Trinidad. Comment
  UC1173686  Vaccinium ovatum Joseph P. Tracy 1939-5-30 16304 Humboldt Dinsmore's, along Van Duzen River Van Duzen River 731 Comment
  HSC7913  Vaccinium ovatum J. Pursell 1964-10-18 10184 Humboldt 1 mi. N from Hwy. 299 on Bald Mountain Rd. Comment
  CAS-BOT-BC199412  Vaccinium parvifolium E. K. Balls 1949-7-11 13973 Humboldt 35 miles west of Willow Creek on Hwy 299 to Arcata 152 Comment
  CAS-BOT-BC199421  Vaccinium parvifolium Elmer I. Applegate 1923-9-10 s.n. Humboldt Martin's Ferry, Klamath River Comment
  HSC98120  Vaccinium parvifolium Cara Witte 2007-5-24 113 Humboldt Horse Mountain Botanical Area. Along Forest Service Rd. 6N38. Near Horse Mountain Mine. 1578 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
  UC1239591  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1924-8-10 6802 Humboldt Van Duzen River bank, near Strongs Station; Van Duzen River 60 Comment
  HSC68321  Vancouveria hexandra J. P. Smith 1973-5-26 6841 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC854707  Vancouveria hexandra Elizabeth Parsons Hawver June 1915 Humboldt Carlotta Comment
  SD90209  Vancouveria hexandra Benjamin C. Stone Jul 1952 114 Humboldt Near Founders Tree, Humboldt Redwoods State Park 149 Comment
  UC1196347  Vancouveria hexandra Joseph P. Tracy Jul 16 1930-Jul 19 1930 8968 Humboldt in fir forest near McKay Camp South Fork Mountain; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1541238  Vancouveria hexandra Harold E. Parks May 1933 4288 Humboldt near Trinidad; near Trinidad Comment
  HSC64196  Vancouveria planipetala J. O. Sawyer, M. A. Ericksen 1979-6-23 3372 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC75554  Vancouveria planipetala J. O. Sawyer, R. J. Cole 1977-7-3 3003 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC1198210  Veratrum insolitum Joseph P. Tracy 1947-7-5 17820 Humboldt in open prairie Trinity Summit 1524 Comment
  RSA167234  Verbascum blattaria Joseph P. Tracy 1950-7-9 18980 Humboldt Willow Creek canyon, along Trinity Hwy. Comment
  RSA245265  Veronica americana John R. Keith 1973-5-15 s.n. Humboldt Approximately 200 yards east of jct of Guintoli Ln. and West End Road. Comment
  UC1011936  Veronica americana F. W. Pennell and J. P. Tracy 1940-7-7 26088 Humboldt headwaters of Willow Creek, Route 299 Willow Creek 762 Comment
  HSC99376  Veronica arvensis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 25 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
  SEINET6988462 Image available Veronica peregrina var. xalapensis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  HSC91944  Veronica serpyllifolia E. Mackey 1986-7-16 355 Humboldt Patrick's Point State Park Comment
  HSC44831  Veronica serpyllifolia subsp. humifusa Thomas W. Nelson, Jane Nelson 1977-6-19 3503 Humboldt Northwest of pond above Alder Springs 1585 Comment
  HSC102551  Vicia americana var. americana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1539 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1197477  Vicia americana var. americana Joseph P. Tracy 1933-5-20 12255 Humboldt near Petrolia (Mattole River); North Coast Region, Mattole River 15 Comment
  UC709409  Vicia faba Joseph P. Tracy 1940-4-7 16527 Humboldt Bayside 15 Comment
  HSC15270  Vicia gigantea W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir Comment
  CHSC35677  Vicia sativa subsp. sativa James P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC59115  Vicia sativa subsp. sativa Terry Roth 1979-5-29 93 Humboldt Arcata, corner of Alliance Rd. and Westwood Ct. Comment
  UC1197474  Vicia tetrasperma Joseph P. Tracy 1934-6-18 13231 Humboldt Eureka; railroad depot 6 Comment
  UCR71484  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt North Coast Range, Hwy 299 roadside c. 8 mi. east of Arcata, 9.5 mi. west of Lord Ellis summit Comment
  CAS-BOT-BC263944  Viola adunca Mrs. H. E. Wilder 1924-5-26 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC263949  Viola adunca L. B. Kildale 1927-4-10 3084 Humboldt Big Lagoon Comment
  UC1198429  Viola adunca Joseph P. Tracy 1918-4-14 4872 Humboldt s end of Dows Prairie; Northern Coast Ranges 30 Comment
  UC1761637  Viola adunca Mrs. H. C. Cantelow 1936-5-17 Humboldt 5 1/2 mi E of Orick (on road to Yreka) Comment
  HSC89593  Viola adunca var. adunca M. Roantree 1985-5-2 27 Humboldt W side of Trinidad Head, W of trail Comment
  HSC21778  Viola cuneata Frances Oldridge 1946-1 Humboldt Willow Creek Comment
  UC1763356  Viola cuneata Davy and Blasdale 1899-1 5510 Humboldt Near Humboldt & Del Norte [county line?] Comment
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Nov 12 2007
  UC668249  Viola glabella Joseph P. Tracy 1938-6-13 15912 Humboldt at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  HSC21797  Viola glabella R. D. Modafferi 1965-3-19 56 Humboldt 2.1 mi. N of Trinidad on Trinity St. 305 Comment
  CHSC24856  Viola ocellata A. D. Launer 1976-4-9 1 Humboldt N roadbank of Church St., ca. 100 yds e of Blocksburg. 472 Comment
  HSC21831  Viola ocellata Francis Winter 1960-4-24 Humboldt 4 mi. E of Blue Lake, Hwy. 299 305 Comment
  HSC71727  Viola ocellata M. A. Baker 1980-6-26 2456 Humboldt Near Sims Creek 610 Comment
  RSA66978  Viola ocellata E. K. Balls 1951-5-9 16514 Humboldt ca. 5 miles S of Richardson's Grove, Highway 101. Comment
  HSC49627  Viola odorata R. York 1979-4-13 218 Humboldt College Cove, 1 mi N of Trinidad Comment
  UC575310  Viola praemorsa subsp. praemorsa Milo S. Baker 1935-4-18 8059 Humboldt about 2 mi w of Bridgeville (Kneeland Hwy on road to Carlotta, near headwaters of South Fork of Yager); South Fork of Yager Comment
  RSA273350  Viola sempervirens N. G. Sugihara 1977-4-23 13 Humboldt 2.5 miles S of Shelter Cove Road. South Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC66211  Viola sempervirens Harley P. Chandler June, 1901 1292 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  HSC36516  Viola sempervirens A. M. Montalvo, J. D. Ackerman 1973-4-29 52 Humboldt 3 mi. NE of Kneeland on road to Maple Creek 457 Comment
  UC668242  Viola sempervirens Joseph P. Tracy 1938-4-5 15706 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 457 Comment
  CAS-BOT-BC203051  Vitis californica Doris K. Kildale 1926-7-25 2431 Humboldt Briceland Bridge 1/2 mi. west of Garberville Comment
  UC1197980  Vitis californica Joseph P. Tracy 1933-7-3 12630 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCD60331  Vitis californica H. Olmo 1934-9-30 s.n. Humboldt Along highway in Blue Lakes. Comment
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Jun 14 2012
  RSA54148  Vitis vinifera H. M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon. Comment
  HSC69872  Vulpia bromoides Thomas W. Nelson 1978-5-29 4094 Humboldt On McKeown Ranch N of Dinsmore. 762 Comment
  UC212887  Vulpia microstachys var. pauciflora Joseph P. Tracy 1919-5-31 5161 1/2 Humboldt near Willow Creek (hillslopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  HSC65449  Vulpia myuros J. P. Smith 1973-5-26 6796 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UCD94900  Vulpia myuros A. H. Murphy 1951-5-18 39 Humboldt Cook Ranch, 1/2 mile northwest of Petrolia. Comment
  CAS-BOT-BC128814  Whipplea modesta L. R. Abrams 1916-7-11 6016 Humboldt Mouth of Grizzly Creek on Van Duzen River - Redwood Forest Comment
  CAS-BOT-BC128819  Whipplea modesta A. A. Heller 1937-6-8 15894 Humboldt In the forest at Bishop Pine Lodge, 3 miles north of Trinidad Comment
  HSC67508  Whipplea modesta J. P. Smith, J. O. Sawyer 1973-5-12 6705 Humboldt 10.4 mi. from Redwood Creek on Hoopa Rd. Comment
  CAS-BOT-BC382916  Wyethia angustifolia Joseph P. Tracy 1935-6-23 13988 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC382918  Wyethia angustifolia Doris K. Kildale 1927-7-1 3614 Humboldt Alton Hill 30 Comment
  HSC73473  Wyethia angustifolia Gail Newton 1980-7-11 1316 Humboldt Near Red Mtn. 1341 Comment
  OBI36373  Wyethia angustifolia David J. Keil 1983-7-1 17267 Humboldt Ca. 13 mi W of jctn US 101 along Bull Crk Flats Rd Comment
  HSC98069  Wyethia longicaulis Cara Witte 2007-7-19 546 Humboldt Buck Flat. 1482 Comment
  UC419036  Wyethia longicaulis H. E. Parks May 1930 740 Humboldt Laribee Valley Comment
  UC604675  Wyethia longicaulis Joseph P. Tracy 1938-7-7 16041 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC527078  Xerophyllum tenax Volney Rattan 1903-1-1 s.n. Humboldt Near Mad River Bridge Comment
  HSC8424  Zeltnera muehlenbergii D. E. Anderson 1961-9-2 1765 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  CAS-BOT-BC532738  Zigadenus micranthus Harold E. Parks; Joseph P. Tracy 1934-6-27 11041 Humboldt Horse Mountain 1432 Comment
  RSA183643  Zigadenus micranthus D. E. Anderson 1965-6-1 3779 Humboldt Near Brush Mountain lookout 1216 Comment
  UC176187  Zigadenus micranthus var. micranthus Joseph P. Tracy 1912-6-9 3692 Humboldt Alton Northern Coast Region 30 Comment
  HSC26270  Zigadenus venenosus var. venenosus Thomas W. Nelson 1971-5-31 450 Humboldt 915 Comment



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