Search Results — 2000 specimen records retrieved (1337 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC55164  Abies concolor Gilbert Muth 1979-8-1 12146 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC76287  Abies concolor Denis Kearns 1981-7-22 306 Humboldt Near Whiteys Peak. 1487 Comment
  RSA54126  Abies concolor Henry M. Pollard 1944-09 s.n. Humboldt Near Orleans. Comment
Read comments
Oct 1 2019
  UC502908  Abies concolor Joseph P. Tracy Jul 16 1930-Jul 19 1930 8962 Humboldt in fir forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC73483  Abies magnifica Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mts. 1828 Comment
  RSA0025086  Abronia latifolia T. S. Elias, Barbara A. Elias 1987-8-24 10621 Humboldt Prairie Creek Redwoods State Park, Gold Bluffs Beach. Comment
  RSA202442  Acaena novae-zelandiae D. W. Cooper, F. Advisor 1966-10-10 s.n. Humboldt ridge just SE of Forest Service Nursery, 2 miles SE of Crannell, 4 miles E of Hwy 101 Comment
  RSA20961  Acer glabrum var. torreyi Carl B. Wolf 1937-9-13 9336 Humboldt North Coast Range, Clear Lake, between Grouse Mountain and Horse Mountain 1524 Comment
  HSC98573  Acer macrophyllum C. Witte 2007-5-17 31 Humboldt National Forest Road 5N10. 1/2 mile east of intersection with National Forest 1. 1441 Comment
  OBI36632  Acer macrophyllum David J. Keil 1983-7-2 17307 Humboldt Ca. 10.5 mi E of jctn with US 101 along SR 299 Comment
  SEINET3098689 Image available Acer macrophyllum Joseph P. Tracy 1914-6-7 4493 Humboldt REgion about Humboldt Bay; valley of North Fork of Elk River. 0 Comment
  UC1175129  Acer macrophyllum P. C. Everett and E. K. Balls 1959-10-25 23957 Humboldt 12 mi w from Willow Creek (along U.S. Hwy 299 to Arcata); w from Willow Creek 701 Comment
  UC1199012  Acer macrophyllum Joseph P. Tracy 1912-3-31 3569 Humboldt near mouth Lindsey Creek (Mad River); Northern Coast Ranges, Mad River 30 Comment
  CAS-BOT-BC331586  Acer macrophyllum Doris K. Kildale 1926-9-5 2636 Humboldt Lasseck's Peaks, on trail between Covel[?] Camp and Red Rock 1676 Comment
  SD41358  Achillea millefolium Edith A. Purer 1932-7-30 4674 Humboldt South of Orick. Comment
  SEINET2145826  Achillea millefolium Joseph P. Tracy 1912-6-9 3661 Humboldt Alton 60 Comment
  CAS-BOT-BC28582  Achillea millefolium J. Clausen 1939-6-23 1728 Humboldt On the Bull Creek Road near intersection with Redwood Highway at Dyerville Comment
  RSA183594  Achlys triphylla D. E. Anderson 1963-5-1 2201 a Humboldt 1 mile west of Hoopa Comment
  CAS-BOT-BC210651  Achnatherum lemmonii Joseph P. Tracy 1933-7-25 12849 Humboldt Grouse Mountain 1524 Comment
  UC1565800  Achnatherum lemmonii R. Spellenberg 1990-7-10 10248 Humboldt 6 mi s on USFS 1 Berry Summit (on Calif. Hwy. 299) (8 mi wsw of Salyer) 1371 Comment
  UCD50521  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19598 Humboldt At Board Camp Mountain, north side, at extreme head of Redwood Creek Comment
  UC526759  Achnatherum occidentale subsp. californicum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9052 Humboldt near Blake lookout (along summit); Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC552728  Achnatherum occidentale subsp. occidentale Joseph P. Tracy 1935-7-26 14272 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UCD104078  Acmispon brachycarpus H. E. Parks 1941-8-1 24183 Humboldt Little River State Park. Comment
  HSC71163  Acmispon micranthus Thomas W. Nelson 1977-5-30 3409 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC71471  Acmispon micranthus J. P. Smith, J. O. Sawyer 1973-5-12 6673 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  CAS-BOT-BC391412  Aconitum columbianum subsp. columbianum Carl B. Wolf 1937-8-13 9249 Humboldt North Coast Range, 11 mi. E. of Hoopa Valley on New Road towards Trinity Summit 1524 Comment
  POM312840  Acorus calamus Malcolm A. Nobs, S. Galen Smith 1949-8-9 1242 Humboldt Marshy pond on south side of the town of Blue Lake. Comment
  POM319488  Actaea rubra subsp. arguta Patricia Wilder 1968-8-22 4423 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
  SEINET200720  Adenocaulon bicolor Joseph P. Tracy 1932-7-17 10650 Humboldt Trinity Summit. Fir woods near Corral Prairie 1580 Comment
  UC1199430  Adenocaulon bicolor Joseph P. Tracy 1912-7-27 3880 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC43906  Adiantum aleuticum H. S. Logsdon 1964-5-14 42 Humboldt 3 mi. SE of Bayside on Jacoby Cr. Rd. Comment
  HSC4594  Agoseris grandiflora D. E. Anderson 1962-7-14 2257 Humboldt Along Barry Ridge Rd. Comment
  SEINET202624 Image available Agoseris grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt Garberville north end of town. Comment
  UC176416  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1912-7-31 3946 Humboldt near summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC1199117  Agoseris grandiflora var. grandiflora J. P. Tracy 1901-7-7 1215 Humboldt immediate vicinity of, on Eureka Streets Eureka 0 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
  HSC74276  Agoseris heterophylla M. A. Baker 1980-5-23 1390 Humboldt Near Buck Mtn. 1524 Comment
  UC450003  Agoseris hirsuta Joseph P. Tracy 1923-6-20 6316 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  CAS-BOT-BC127457  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon. 6 Comment
  CAS-BOT-BC127297  Agrostis exarata Doris K. Kildale 1927-7-23 3796 Humboldt Near Lasseeks [Lassics] Peaks. Haaglin [Hoagland] Lake. Comment
  POM160889  Agrostis exarata Joseph P. Tracy 1918-7-21 5085 Humboldt Around Humboldt Bay. Humboldt Hill 91 Comment
  RSA32726  Agrostis exarata A. A. Heller 1923-7-8 13772 Humboldt Near Fortuna Comment
  UC176586  Agrostis exarata J. P. Tracy 1900-9-2 933 Humboldt Immediate vicinity of Eureka 0 Comment
  UC207702  Agrostis exarata Joseph P. Tracy 1917-6-24 4825 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River 60 Comment
  UC36912  Agrostis exarata Harley P. Chandler June, 1901 1512 Humboldt Klamath River 426 Comment
  UC526892  Agrostis exarata Joseph P. Tracy 1932-7-14 10550 Humboldt Wet Meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UCD52338  Agrostis exarata R. Tofsrud 1947-7-1 201 Humboldt near Harris. Comment
  UCD52234  Agrostis exarata var. pacifica A. H. Murphy 1948-7-29 s.n. Humboldt Sherman Flat, 3.5 miles north of Blocksburg. Comment
  CAS-BOT-BC139697  Agrostis gigantea Joseph P. Tracy 1932-8-21 10363 Humboldt North Coast Ranges. Three Cabins. On lower western foothills on Chaparral Mountain. 457 Comment
  HSC58751  Agrostis gigantea Overton, Butler 1979-7-24 9619 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  CAS-BOT-BC139499  Agrostis hallii Gordon H. True 1965-9-25 2656 Humboldt Klamath River 1.5 mile east of Orleans. 213 Comment
  HSC72675  Agrostis hallii J. P. Smith 1977-7-3 9257 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  HSC89506  Agrostis hallii M. Roantree 1985-5-30 71 Humboldt SW side of Trinidad Head. Comment
  UC1103524  Agrostis hallii J. P. Tracy 1912-7-23 3803 Humboldt about 5 mi above mouth South Fork Eel River 60 Comment
  CAS-BOT-BC139122  Agrostis oregonensis Peter H. Raven; R. Snow 1958-7-21 13649 Humboldt 2.9 miles south of Ferndale on road to Cape Mendocino. Comment
  HSC98859  Agrostis oregonensis Cara Witte 2008-8-5 990 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  HSC49053  Agrostis pallens Thomas Nelson, Jane Nelson 1978-7-3 4414 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC589898  Agrostis pallens H. S. Yates 1936-6-16 5685 Humboldt near Bayside; Eureka Quadrangle 9 Comment
  HSC8810  Agrostis stolonifera C. B. Wolf 1927-8-27 1189 Humboldt Eureka Bay, on the road from Eureka to Arcata. Comment
  HSC8811  Agrostis stolonifera D. J. McVean 1965-4-13 17 Humboldt 900 block of Shirley Blvd. Arcata Comment
  RSA44451  Agrostis stolonifera Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  UC1103304  Aira caryophyllea J. P. Tracy 1900-6-14 855 Humboldt Immediate vicinity of Eureka 0 Comment
  SEINET5335998  Aira caryophyllea W. D. Billings 1940-6-28 1353 Humboldt 1/4 mi. N of Trinidad Comment
  CAS-BOT-BC445359  Alisma plantago-aquatica Henry M. Pollard 1945-8-24 s.n. Humboldt Pond below Harley place. Near Orleans. Comment
  HSC34696  Alisma triviale Thomas W. Nelson 1974-9-12 1707 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata Comment
  HSC98976  Allium acuminatum Cara Witte 2008-7-14 900 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  HSC23145  Allium amplectens Norman Dennis 1965-6-19 132 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  CAS-BOT-BC462970  Allium bolanderi Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 914 Comment
  UC666932  Allium falcifolium Joseph P. Tracy 1933-7-11 12658 Humboldt Horse Mountain 1432 Comment
  UCR39798  Allium falcifolium D. K. Imper 1982-7-1 s.n. Humboldt Six Rivers National Forest. Lassics Lookout & road to Pine Mtn. 1524 Comment
  HSC23259  Allium triquetrum Jena Kattenhorn 1971-5-26 259 Humboldt Vacant lots of HSC campus Comment
  UCD138614  Allium unifolium K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC57903  Allium validum Gilbert Muth 1979-7-31 11499 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC70498  Allium validum Gail Newton 1980-7-20 1628 Humboldt Near Bell Swamps 9 Comment
  HSC99505  Allium validum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 165 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
  HSC100547  Allium validum Carl C. Marshall May 1886 233 Humboldt Wood's Pasture near Arcata. Comment
  UC412886  Allotropa virgata Mrs. M. H. Manning 1901-1 Humboldt Hupa Comment
  UC1225785  Alnus incana subsp. tenuifolia Joseph P. Tracy 1948-9-5 18161 Humboldt Hally Camp Mt. Trinity Summit Range (meadow) 1280 Comment
  CAS-BOT-BC170948  Alnus rhombifolia Joseph P. Tracy 1930-11-2 9243 Humboldt Camp Grant, along Eel River 60 Comment
  UC1193076  Alnus rhombifolia R. E. Nelson 1950-8-31 153 Humboldt streamside 3 mi nw Neafus Peak; Quad. 29D1 609 Comment
  HSC13115  Alnus rubra C. Kline, D. Santana Oct 1970 31 Humboldt HSC Campus Comment
  HSC3436  Alnus rubra Doris K. Kildale 1926-7-18 2388 Humboldt Orick, Redwood Creek 9 Comment
  HSC89484  Alnus rubra P. A. Daly 1984-5-13 22 Humboldt Along trail at Trinidad Head 61 Comment
  RSA173960  Alnus rubra R. F. Thorne 1957-9-3 19019 Humboldt Patrick s Point State Park. Comment
  UCD110034  Alnus rubra Linda M. Barker 1976-6-14 1602 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET12031409  Alnus rubra F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -301 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Road (USFS Road 411) 150 Comment
  CAS-BOT-BC138014  Alopecurus geniculatus Richard Walter Pohl 1963-6-3 9449 Humboldt Korbel. Comment
  UCD55894  Alopecurus geniculatus A. A. Beetle; G. L. Stebbins Jr., J. P. Tracy 1942-6-2 3458 Humboldt South of Eureka Loleta Swamp. Comment
  UCD55896  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt in Salmon Creek Valley, at south end of Humboldt Bay. 15 Comment
  UCD55904  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt mouth of Elk River, near Eureka. 6 Comment
  SEINET11674220  Alopecurus geniculatus J. P. Tracy 1951-1 19524 Humboldt back of Everett Beck house (formerly George Fray) bed of former Goose Lake, Hydesville Comment
  HSC8896  Alopecurus pratensis W. F. Cartwright 1965-5-20 78 Humboldt 5 mi. S of Arcata on Old Arcata Rd. Comment
  HSC8897  Alopecurus pratensis W. F. Cartwright 1965-4-22 60 Humboldt 2 mi. W of Arcata on Arcata bottoms Comment
  CAS-BOT-BC13710  Ambrosia chamissonis Carl B. Wolf 1927-8-29 1213 Humboldt Devil's Gate, south of Cape Mendocino. Comment
  OBI35979  Ambrosia chamissonis David J. Keil 1983-7-1 17288 Humboldt Ca 5 mi NW of Petrolia along Mattole Rd Comment
  RSA26851  Ambrosia chamissonis I. L. Wiggins 1940-7-10 9486 Humboldt Big Lagoon. Comment
  POM264459  Ambrosia chamissonis H. E. Parks 1941-08 24181 Humboldt On rocky and sandy beach, Big Lagoon Comment
  RSA355694  Ambrosia chamissonis var. chamissonis Dave Kelly, Walter Wisura 1986-7-30 4133 Humboldt On sand dunes near Manila, Samoa peninsula W of Arcata Comment
  BLMAR626  Amelanchier alnifolia var. semiintegrifolia Jennifer Wheeler 2011-6-15 626 Humboldt Lacks Creek, Pine Ridge Road 914 Comment
  UC154229  Amelanchier utahensis Joseph P. Tracy 1908-6 2768 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC492196 Image available Amelanchier utahensis Joseph P. Tracy 1927-6-12 8140 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  CHSC2118  Ammophila arenaria M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  HSC17838  Anagallis arvensis Harvey Doerksen 1962-5-8 12 Humboldt 3 mi. W of Blue Lake where Lindsey Creek joins the Mad River Comment
  CAS-BOT-BC45143  Anaphalis margaritacea Bennett; Dunn; Dziekanowski 1976-8-6 478 Humboldt By Hwy 101, N side of Orick 30 Comment
  HSC27042  Anaphalis margaritacea Brad Klipfel 1973-8-25 286 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  HSC4618  Anaphalis margaritacea J. Rockwell 1962-11-12 151 Humboldt Near Coast Guard Station Comment
  HSC95077  Anaphalis margaritacea Andrea Pickart 2002-7-3 163 Humboldt S side Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  SEINET10761471  Anaphalis margaritacea J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13013 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  UC1196191  Anemone oregana Joseph P. Tracy 1932-7-16 10628 Humboldt near Corral Prairie (Trinity Summit); Klamath Mtns, Trinity Summit 1524 Comment
  UC586000  Angelica genuflexa Joseph P. Tracy 1927-9-25 8380 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  UC1087231  Angelica hendersonii Peter H. Raven, Richard Snow 1958-7-21 13660 Humboldt Cape Mendocino Comment
  JEPS16068  Angelica hendersonii Joseph P. Tracy 1924-9-21 6902 Humboldt Northern Coast Ranges, Eureka, toward Bucksport Eureka; Northern Coast Ranges, Eureka 0 Comment
  UCD127225  Angelica hendersonii Joseph DiTomaso 1980-6-29 1636 Humboldt south side of Elkshead. 2 miles north of Trinidad. Comment
  UC642351  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  CAS-BOT-BC271497  Anisocarpus madioides L. R. Abrams 1918-6-15 7121 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC69103  Antennaria media Joseph P. Tracy 1935-7-24 14202 Humboldt Trinity Summit. Near ranger station. 1828 Comment
  HSC39226  Antennaria suffrutescens D. E. Anderson, J. P. Smith 1971-7-6 1287 Humboldt Horse Mtn. Comment
  HSC49816  Anthoxanthum occidentale R. York 1979-4-21 243 Humboldt Behind the town of Korbel Comment
  UCD85497  Anthoxanthum occidentale H. S. Yates 1936-6-22 5850 Humboldt 4 miles NE of Bald Mtn. Comment
  CAS-BOT-BC137742  Anthoxanthum odoratum Doris Kildale 1931-5-10 15681 Humboldt Snow Camp. Comment
  HSC40341  Anthoxanthum odoratum Linda M. Barker 1976-4-30 1402 Humboldt 3 mi. W of Arcata Comment
  HSC37848  Anthriscus caucalis Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  HSC41328  Apocynum androsaemifolium Brad Klipfel 1974-8-2 510 Humboldt Horse Mtn. Comment
  HSC99008  Aquilegia formosa var. formosa Cara Witte 2008-7-16 907 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  SEINET12094713  Aquilegia formosa var. truncata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -310 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CAS-BOT-BC17260  Arabidopsis thaliana Joseph Prince Tracy 1932-5-17 10091 Humboldt Northern Coast Ranges. Trinity River Valley, at Willow Creek. 152 Comment
  HSC79191  Arabis subpinnatifida D. K. Imper 1984-5-17 Humboldt Sims Mountain 1280 Comment
  RSA568502  Aralia californica Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  CAS-BOT-BC167256  Aralia californica Doris K. Kildale 1926-11-14 2860 Humboldt Stephen's Grove near Miranda 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
  HSC98739  Arbutus menziesii Cara Witte 2008-5-26 661 Humboldt Along Forest Service Road 5N10. 1/2 mile south of intersection with Friday Ridge Road. 1487 Comment
  UC672852  Arceuthobium campylopodum Joseph P. Tracy 1932-7-14 10571 Humboldt ridges e of Corral Prairie Trinity Summit 1676 Comment
  UC1121508  Arctostaphylos A. E. Wieslander 1931-5-17 192 Humboldt Orick-Orleans Rd Hoopa Quadrangle, Bald Hills Comment
  UC1196872  Arctostaphylos Joseph P. Tracy 1926-6-6 7568 Humboldt road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UC1196877  Arctostaphylos Joseph P. Tracy 1934-3-11 13156 Humboldt French Camp Ridge 1066 Comment
  UC1198673  Arctostaphylos Joseph P. Tracy 1937-4-3 15248 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC585943  Arctostaphylos Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  UC902045  Arctostaphylos X candidissima Joseph P. Tracy 1949-8-4 18405 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UCR32088  Arctostaphylos canescens David J. Keil 1983-7-2 17321 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  CAS-BOT-BC25210  Arctostaphylos canescens subsp. canescens J. P. Tracy 1941-4-8 16850 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  CAS-BOT-BC23772  Arctostaphylos columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff 91 Comment
  CAS-BOT-BC23781  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12583 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's. On ridge 1 mile S. of road. 1219 Comment
  CAS-BOT-BC23814  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. betweein Redwood Creek and Trinity River. Comment
  HSC101666  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 2011-4-23 13127 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  HSC33075  Arctostaphylos columbiana Thomas W. Nelson, J. D. Ackerman 1974-5-14 1264 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  RSA622698  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27681 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1225897  Arctostaphylos columbiana Joseph P. Tracy 1945-3-30 17496 Humboldt in area known as Rick's Prairie Eureka 45 Comment
  UC585921  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UCD50668  Arctostaphylos columbiana Linda M. Barker 1976-2-22 1319 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC54574  Arctostaphylos glandulosa Overton, Butler 1979-7-24 9608 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  RSA632794  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27780 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA632802  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27765 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA632807  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27790 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  CAS-BOT-BC38832  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-5-7 3110 Humboldt Elk Ridge, near Eel Rock Comment
  HSC38516  Arctostaphylos nevadensis D. E. Anderson, J. P. Smith 1971-6-18 1085 Humboldt Horse Mtn. Comment
  CAS-BOT-BC40027  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC40075  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  SBBG83936  Arctostaphylos nevadensis subsp. knightii R. Gankin, W. R. Hildreth 1967-10-26 1175 Humboldt French Camp Ridge, 21.4 mi E of US 101 on Bald Hills Rd from Orick Comment
  HSC74654  Arctostaphylos patula M. A. Baker 1980-5-17 1269 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC43979  Arctostaphylos uva-ursi Greg de Nevers 2001-4-18 12251 Humboldt Lanphere-Christenson dunes, near Arcata. 9 Comment
  HSC31470  Arctostaphylos uva-ursi Steve Selva 1974-8-28 91 Humboldt Approx. 5 mi. S of Arcata on the Samoa Peninsula Comment
  RSA152315  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt Eureka. 46 Comment
  SEINET11984847  Arctostaphylos uva-ursi Unknown 1965-1 554 Humboldt 1.3 mi S of Samoa, Samoa Peninsula Comment
  HSC73249  Arctostaphylos viscida M. A. Baker 1980-5-18 1313 Humboldt Near Black Mtn. 1006 Comment
  HSC76328  Arctostaphylos viscida Denis Kearns 1981-7-6 52 Humboldt Near Mosquito Lake 1122 Comment
  UC1173712  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1939-4-29 16265 Humboldt Orleans 121 Comment
  HSC8972  Aristida oligantha DWC 1956-8-2 Humboldt Garberville - Laughlin soil Comment
  CAS-BOT-BC64580  Armeria maritima subsp. californica Joseph P. Tracy 1927-6-8 8115 Humboldt Trinidad. 60 Comment
  HSC37923  Armeria maritima subsp. californica Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  HSC69625  Armeria maritima subsp. californica R. Kalal 1979-5-29 34 Humboldt Along Samoa Blvd. 3 Comment
  SD117465  Armeria maritima subsp. californica Robert F. Thorne 1974-7-29 45068 Humboldt Samoa Dunes between Humboldt Bay and Pacific Ocean. Comment
  HSC46207  Arnica cernua Thomas W. Nelson 1977-6-15 3435 Humboldt Horse Mtn.; along USFS Rd. 5N10 about 100 m south of junction with USFS Rd. 6N01 Comment
  HSC75557  Arnica discoidea J. O. Sawyer, R. J. Cole 1977-7-3 3005 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC34161  Arnica discoidea Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  CAS-BOT-BC82432  Arnica discoidea Doris K. Kildale 1926-6-27 2190 a Humboldt McClellan Mountain, Sweasey Lake road 822 Comment
  UC166070  Arnica discoidea Joseph P. Tracy 1911-7-11 3513 Humboldt hills near Supply Creek; Hoopa Valley 182 Comment
  HSC60011  Artemisia douglasiana M. A. Baker 1977-6-6 367 Humboldt Hoopa Comment
  HSC99551  Artemisia douglasiana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 216 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1222998  Artemisia douglasiana Joseph P. Tracy 1947-8-24 17892 Humboldt Meadow at Box Camp; Trinity Summit 1463 Comment
  CAS-BOT-BC90869  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt Sand hills of ocean beach at Samoa, opp. Eureka Comment
  HSC67445  Artemisia pycnocephala J. P. Smith 1971-10-6 4960 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS103030  Artemisia suksdorfii R. Raiche, H. Forbes, A. C. Carmichael 1999-10-18 UCBG 24 Humboldt 18 miles NW of Honeydew on Mattole Rd., in sight of the ocean along the Mattole River 46 Comment
  CHSC68790  Aruncus dioicus var. pubescens Vernon Oswald 1997-6-5 8546 Humboldt Hwy. 299 between Willow Creek and Blue Lake, 1.1 mi west of East Fork Campground, 3.1 mi east of Titlow Hill Rd. 542 Comment
  RSA78412  Aruncus sylvester Philip A. Munz 1952-6-25 17840 Humboldt S of Grizzly Creek, N Fork of Trinity River, N of Helena. 1006 Comment
  CAS-BOT-BC400528  Asarum caudatum Mrs. H. E. Wilder 1924-4-26 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC400530  Asarum caudatum Peter H. Raven; R. Snow 1958-7-20 13642 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge Comment
  POM118567  Asarum caudatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  SEINET12094754  Asarum caudatum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -277 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  SEINET6652462  Asarum caudatum J. P. Tracy 1900-5-22 794 Humboldt Vicinity of Eureka Comment
  HSC40010  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt Along ridge N of Bear Creek 1463 Comment
  RSA167195  Aster occidentalis Joseph P. Tracy 1941-8-24 17040 Humboldt South Fork Mountain. Near McKay camp. 1677 Comment
  RSA417697  Aster occidentalis Thomas W. Nelson, Jane Nelson 1977-9-3 3726 Humboldt Along Creek draining, north from pond above Alder Spring. 1585 Comment
  UC502991 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten & Pierce Ranch) 762 Comment
  UC201383  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1918-7-1 4977 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, in sandy flats near the shore, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  JEPS21029  Astragalus rattanii var. rattanii Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  RSA138315  Astragalus rattanii var. rattanii Volney Rattan 1882-06 s.n. Humboldt Humboldt Comment
  RSA475203  Astragalus rattanii var. rattanii Aaron Liston, Sara Meury 1988-5-30 747 -1 Humboldt Van Duzen River; road across river E of Cheatman Grove [Cheatham Grove]. 100 Comment
Read comments
Jan 28 2016
  UC82583  Astragalus rattanii var. rattanii J. W. Blankinship 1893-6-15 Humboldt Bridgeville Comment
  JEPS79824  Astragalus umbraticus Joseph P. Tracy 1914-7 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  HSC976  Athyrium filix-femina var. cyclosorum Francis Winter 1960-4-24 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC98974  Athyrium filix-femina var. cyclosorum Cara Witte 2007-8-9 626 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UC922659  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  HSC98599  Athysanus pusillus Cara Witte 2008-6-13 724 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  UC1198298  Athysanus pusillus Joseph P. Tracy 1927-3-27 7848 Humboldt Trinity River Valley near the South Fork; North Coast Ranges, Trinity River Valley 182 Comment
  CDA15325  Atriplex prostrata R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Near Loleta. Comment
  UC526705  Avena barbata Joseph P. Tracy 1926-5-9 7456 Humboldt hills near Bridgeville; North Coast Ranges 609 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
  UCD56261  Avena fatua A. H. Murphy 1951-4-2 8 Humboldt Alongside U.S. Hwy. 101. 1/4 mile south of Phillipville. Comment
  UC275449  Azolla filiculoides Parks and Tracy 1925-6-24 2763 Humboldt ditches along R.R. and tide flats Eureka Comment
  UC1119655  Baccharis glutinosa H. L. Person 1932-7-18 Humboldt Eureka Comment
  RSA607468  Baccharis pilularis R. S. Woglum 1938-8-29 2029 Humboldt North Coast: Trinidad. Comment
  HSC68159  Baccharis pilularis subsp. consanguinea J. P. Smith 1971-10-6 4963 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC26396  Baccharis pilularis subsp. pilularis T. O. Osborne 1970-9-16 30 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC5112  Baccharis pilularis subsp. pilularis Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  UCD129526  Balsamorhiza deltoidea James P. Smith 1973-5-5 6416 Humboldt along Cook and Green Pass road. Comment
  UC552762  Beckmannia syzigachne Joseph P. Tracy 1935-5-25 13848 Humboldt Fort Seward 106 Comment
  HSC82029  Bellardia trixago Thomas W. Nelson, Jane P. Nelson 1980-5-25 5344 Humboldt Along Alderpoint-Blocksburg Rd., just SE of bridge over N Dobbyn Creek 152 Comment
  CAS-BOT-BC106353  Bellis perennis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UCD129543  Bellis perennis Joseph M. DiTomaso 1976-3-28 343 Humboldt Arcata, corner of 3rd and D. Comment
  RSA167308  Bensoniella oregona Joseph P. Tracy 1951-6-14 19416 Humboldt East side of Snow Camp Meadows Comment
  UC1046538  Bensoniella oregona R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3416 Humboldt Snow Camp Bald Mountain Ridge (ridge between Mad River and Redwood Creek, Bald Mountain Ridge); Bald Mountain ridge, btw Mad River and Redwood Creek 1432 Comment
  HSC74356  Berberis aquifolium var. repens Gail Newton 1980-6-17 228 Humboldt Near Onion Mtn. 1341 Comment
  HSC31569  Berberis nervosa Glenn McGourty 1974-5-11 39 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC104398  Berberis nervosa A. T. Leiser 1980-7-9 Humboldt Redwood National Park; Highway 101 re-route Comment
  OBI33907  Berberis pinnata subsp. pinnata David J. Keil 1983-7-2 17320 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit Rd Comment
  HSC64434  Bistorta bistortoides J. P. Smith, Steve Selva 1970-6-30 4119 Humboldt Comment
  UC672887  Blechnum spicant Joseph P. Tracy 1940-8-25 16718 Humboldt Bald Mt. 975 Comment
  UCD136026  Blechnum spicant Gordon Leppig 1998-6-26 860 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. UTM zone 10, 4535N, 405E. 18 Comment
  CAS-BOT-BC15787  Boechera acutina Harold Ernest Parks; Joseph Prince Tracy 1949-6-25 11678 Humboldt Trinity Summit. At Box Camp. 1463 Comment
  CHSC69843  Bolboschoenus maritimus subsp. paludosus Leonel Arguello 1989-6-11 Humboldt At the Lanphere-Christensen Dunes Preserve 3 miles west of Arcata. Along the edge of the salt marsh, approximately 50 ft. west of the Salt Marsh trail. Comment
  HSC44123  Botrychium multifidum Thomas F. Lyon, Linda M. Barker 1977-5-8 1715 Humboldt 3 mi. W of Arcata in S pasture Comment
  UC1239783  Botrychium multifidum Joseph P. Tracy 1912-7-22 3793 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  CDA42735  Botrychium multifidum T. C. Fuller 1961-9-28 7054 Humboldt 1.5 miles south of Samoa. 0 Comment
  RSA466744  Boykinia major Anstruther Davidson 1918-07 3340 Humboldt Eel River. Comment
  CAS-BOT-BC420265  Boykinia occidentalis Doris K. Kildale 1928-7-29 5928 Humboldt Bear River at Capetown 15 Comment
  CAS-BOT-BC420259  Boykinia occidentalis A. A. Heller 1937-6-11 15893 Humboldt along U.S. Highway #101 between Bishop Pine Lodge and Big Lagoon Comment
  JEPS49650  Boykinia occidentalis W. L. Jepson 1902-7-11 2012 Humboldt walls South Fork Trinity River (river bank, Martin's Ranch); walls of the South Fork Trinity River, river bank Comment
  UC11310  Boykinia occidentalis H. N. Bolander June 1867 6529 Humboldt Comment
  JEPS18619  Brickellia californica W. L. Jepson 1936-8-8 17865 Humboldt South Fork Eel River, Richardson Grove Comment
Read comments
Feb 5 2011
  RSA47176  Brickellia californica Doris K. Kildale 1926-8-8 2480 Humboldt Dyerville, river bar in Eel River Comment
  HSC38484  Briza minor Dennis Anderson, J. P. Smith 1971-6-18 - 1064 Humboldt Chezem Rd., 3 mi. E of bridge over Redwood Creek Comment
  UC1103342  Briza minor Joseph P. Tracy 1919-5-31 5141 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC187216  Briza minor Joseph P. Tracy 1911-7-5 3328 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  CAS-BOT-BC484220  Brodiaea elegans subsp. elegans F. J. Kirby 1958-7-1 1217 Humboldt E of Bridgeville 304 Comment
  HSC35619  Brodiaea elegans subsp. elegans Thomas W. Nelson, B. Reinhardt 1975-7-30 2114 Humboldt E of Pilot Rock Comment
  HSC3016  Brodiaea terrestris subsp. terrestris T. M. Mingo May 1965 Humboldt 100 ft. N of parking area at College Cove Comment
  HSC3017  Brodiaea terrestris subsp. terrestris D. E. Anderson 1963-5-25 2493 Humboldt 4 mi. W of Petrolia Comment
  CAS-BOT-BC144346  Bromus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  RSA728073  Bromus Gary D. Wallace 1979-6-24 1863 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  UC526848  Bromus carinatus var. carinatus H. E. Parks and Joseph P. Tracy 1934-7-6 11142 Humboldt Northern Coast Ranges, Iaqua Iaqua; Northern Coast Ranges, Iaqua 762 Comment
  HSC26775  Bromus diandrus Thomas W. Nelson 1971-5-31 465 Humboldt 915 Comment
  HSC9279  Bromus diandrus H. S. Haskell 1966-4-23 23 Humboldt Near Samoa. Comment
  HSC9239  Bromus hordeaceus T. L. Ackerman 1964-5-7 41 Humboldt 1.5 mi. W from Sweesey dam Comment
  UC1103362  Bromus hordeaceus Joseph P. Tracy 1939-4-29 16260 Humboldt Orleans 121 Comment
  UC1103367  Bromus hordeaceus Joseph P. Tracy 1920-5-18 5322 Humboldt Northern Coast Ranges, Look Prairie, on Bull Creek Bull Creek; Northern Coast Ranges, Look Prairie, Bull Creek 152 Comment
  UCD58705  Bromus hordeaceus Linda M. Barker 1976-5-13 1477 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1103271  Bromus laevipes Joseph P. Tracy 1911-7-6 3339 Humboldt between Three Creeks and mouth of Willow Creek (Northern Coast Ranges); Northern Coast Ranges 762 Comment
  UC1541517  Bromus laevipes Harold E. Parks 1934-6-3 4953 Humboldt 2 mi w of Bridgeville 152 Comment
  UC1103347  Bromus madritensis subsp. rubens Joseph P. Tracy 1932-4-3 9790 Humboldt near Englewood (North Coast Ranges); North Coast Ranges 91 Comment
  OBI22448  Bromus sitchensis Joseph P. Tracy 1937-5-31 15318 Humboldt Trinity River Valley, at Willow Crk Comment
  CAS-BOT-BC185517  Bromus vulgaris W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River. Comment
  UC1103269  Bromus vulgaris Joseph P. Tracy 1901-6-30 1211 Humboldt immediate vicinity of Eureka 0 Comment
  RSA46798  Cacaliopsis nardosmia Doris K. Kildale 1926-4-18 1776 Humboldt McClellan Mountain. Comment
  UC1198280  Cakile edentula Joseph P. Tracy 1946-1-13 17518 Humboldt Centerville Beach 3 Comment
  UCD114857  Cakile edentula M. Barbour 1969-9-4 s.n. Humboldt West of Table Bluff (about 10 miles south of Eureka). Comment
  CAS-BOT-BC36864  Cakile edentula var. edentula Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1337 Humboldt At easten shore of Stone Lagoon. Comment
  HSC6610  Cakile maritima Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  HSC6611  Cakile maritima Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  RSA10029  Calamagrostis canadensis Joseph P. Tracy 1932-7-14 10553 Humboldt Klamath Mountains; Trinity Summit. Wet Meadow at Corral Prairie 0 Comment
  UC1145051  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt at bridge 3 mi e Petrolia (bluff bank of river); Mattole River 30 Comment
  RSA550890  Calamagrostis nutkaensis R. F. Thorne, P. Everett 1965-8-7 35191 Humboldt Big Lagoon, south end. 2 Comment
  UCD57504  Calamagrostis nutkaensis Elizabeth Wilson 1940-7-12 s.n. Humboldt north of Eureka. Comment
  HSC26298  Calandrinia ciliata T. O. Osborne 1970-6-18 69 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  UC1103691  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1913-5-11 4073 Humboldt Eureka Northern Coast Region (at Stephen Hill place) 0 Comment
  HSC62829  Callitriche stagnalis J. M. DiTomaso 1979-5-29 1080 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. Comment
  HSC98964  Calocedrus decurrens Cara Witte 2007-9-14 648 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1649 Comment
  UC667123  Calochortus amabilis Joseph P. Tracy 1916-6-19 4711 Humboldt Bosworth's Larrabee Creek 457 Comment
  SEINET4169782  Calochortus catalinae Unknown 1930-7-6 Humboldt Kneeland Praire 762 Comment
  HSC15385  Calochortus tolmiei D. E. Anderson 1965-5-1 3559 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC36504  Calochortus tolmiei Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1887 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  CAS-BOT-BC494367  Calochortus tolmiei H. C. Cantelow 1941-4-26 36 Humboldt 12 miles sw. of Ferndale on road to Cape Mendocino Comment
  UC198648  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  UC127837  Calycadenia fremontii Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  CAS-BOT-BC273317  Calycadenia fremontii Henry M. Pollard 1945-8-21 s.n. Humboldt Orleans to Somes Bar Comment
  CAS-BOT-BC275368  Calycadenia truncata var. truncata Harley P. Chandler 1901-6-1 1492 Humboldt Klamath River 426 Comment
  BLMAR74  Calypso bulbosa Jennifer Anthony-Wheeler 1994-6-2 74 Humboldt IAQUA 1036 Comment
  UC275535  Calypso bulbosa Joseph P. Tracy 1924-3-30 6631 Humboldt near Bridgeville (Northern Coast Ranges); Northern Coast Ranges 182 Comment
  HSC38744  Calypso bulbosa M. Mesler, K. Mesler, J. D. Ackerman 1976-4-25 752 Humboldt Hwy. 36, E of Bridgeville, near tip of ridge W of Dinsmore Comment
  HSC38746  Calypso bulbosa var. occidentalis J. D. Ackerman 1976-4-27 754 Humboldt 10 mi. E of Blue Lake on road to Maple Creek Comment
  HSC71173  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 1977-5-30 3417 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  JEPS31595  Calystegia occidentalis subsp. occidentalis W. L. Jepson 1934-5-7 16700 Humboldt Buckeye Prairie , Buckeye Prairie (Bull Creek) Comment
  JEPS98261  Calystegia silvatica subsp. disjuncta Gordon Leppig 2001-7-11 1579 Humboldt W shoulder of south G street, about 75 m S of the City of Arcata Corporation Yard entrance Arcata Comment
  HSC46956  Calystegia soldanella J. P. Smith, Thomas W. Nelson 1977-6-30 9204 Humboldt Samoa Peninsula just E of the drag strip. Comment
  RSA21032  Calystegia soldanella C. B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  RSA244983  Calystegia soldanella R. E. Jones 1966-4-13 43 Humboldt Cape Mendocino 6 miles south of Cape. Comment
  UC1197877  Calystegia soldanella Joseph P. Tracy 1915-6-6 4650 Humboldt sandy beach near mouth Elk River (Eureka); Northern Coast Region, nr mouth Elk River, at Eureka 0 Comment
  RSA0116954  Camassia leichtlinii subsp. suksdorfii Frank W. Peirson 1923-7-11 3681 Humboldt 7 miles north of Arcata. Comment
  HSC66287  Camassia quamash subsp. linearis M. A. Baker 1980-6-8 1878 Humboldt Near Buck Flat. 1554 Comment
  SEINET10462970  Campanula prenanthoides Sandborg 1968-7-19 SANDBORG 54 Humboldt Bluff Creek near Notice Creek, forest floor near road below Notice Creek bridge. T10N R4E Comment
  SEINET10463332  Campanula prenanthoides Alma L. Moldenke, Harold N. Moldenke 1975-8-21 Moldenke 20338 Humboldt RIO DELL, IN DEEP FOREST Comment
  SEINET10873282  Campanula prenanthoides Rattan 1878-1 RATTAN s.n. Humboldt Comment
  SEINET10873292  Campanula prenanthoides Etienne 1972-9-4 Etienne s.n. Humboldt Lumber Rd to Klamath R. Ca. 8 mi inland 1 mi. N of Co. line 100 Comment
  SEINET10905897  Campanula prenanthoides Rattan 1878-1 RATTAN s.n. Humboldt Humboldt County Comment
  HSC100410  Campanula scouleri Carl C. Marshall Jun 1886 243 Humboldt Redwood region, 'wild grass'. Comment
  SEINET10463476  Campanula scouleri Kildale 1937-7-18 KILDALE 15143 Humboldt HORSE MOUNTAIN Comment
  SEINET10463645  Campanula scouleri Ira L. Wiggins 1930-7-22 Wiggins 4699 Humboldt ALONG BANK OF REDWOOD CR. BTWN BLUE L. & WILLOW CR. Comment
  SEINET10463752  Campanula scouleri Rattan 1883-6-29 RATTAN s.n. Humboldt Near Redwood Creek Comment
  SEINET10463755  Campanula scouleri Baker 1923-7-20 Baker 52 Humboldt Road from Redwood 61 Comment
  HSC6624  Capsella bursa-pastoris Paul Shields Jul 1955 Humboldt 2 mi. S of Weott Comment
  CAS-BOT-BC37421  Cardamine californica LeRoy Ellsworth Detling 1935-4-22 1646 Humboldt Redwoods, Prairie Creek Fish Hatchery. Comment
  HSC6697  Cardamine californica Lincoln Constance 1934-5-26 651 Humboldt Bull Creek Region; N Dyerville Flat grove near Founder's Tree 49 Comment
  UC494001  Cardamine californica var. sinuata Parks and Tracy 916 Humboldt Lower Van Duzen River 60 Comment
  CAS-BOT-BC384765  Cardionema ramosissimum Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  UC1409184  Cardionema ramosissimum Robert F. Thorne and P. Everett 1965-8-5 35155 Humboldt Samoa Dunes 3 Comment
  RSA167248  Carduus tenuiflorus Joseph P. Tracy 1947-6-8 17703 Humboldt 0.5 mile west of town Comment
  UC562439  Carex amplifolia Joseph P. Tracy 1936-8-7 15092 Humboldt head of Little Hos Linto Cr. North Coast Ranges, Trinity Summit, Little Hos Linto Cr. 1371 Comment
  RSA34051  Carex angustata A. A. Heller 1923-7-10 s.n. Humboldt Eel River between Scotia and Pepperwood. Comment
  UC562286  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 13504 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 6 Comment
  UC1586919  Carex arcta Juha Pykala and D. H. Norris 1987-6-5 1360 Humboldt e Maple Creek (se of Snow Camp Mountain, upper course of Redwood Creek); Redwood Creek 1100 Comment
  UC562279  Carex arcta Joseph P. Tracy 1934-7-13 13389 Humboldt Dow's Prairie 60 Comment
  SEINET11629975  Carex athrostachya J. P. Tracy 1950-1 18989 Humboldt NW slope of Buck Mountain, Burr Valley 1067 Comment
  CAS-BOT-BC19218  Carex barbarae Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC562431  Carex bolanderi Joseph P. Tracy 1936-6-9 14912 Humboldt Upper Mattole 457 Comment
  RSA246870  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35128 Humboldt Wailaki Recreation site. 518 Comment
  UC1598405  Carex buxbaumii Joy Mastrogiuseppe 1987-6-4 4571 Humboldt in middle bog Big Lagoon Sphagnum bog Comment
  RSA364727  Carex densa Thomas W. Nelson, Ken Hindley 1978-5-28 4086 Humboldt On McKeown Ranch north of Dinsmore. 762 Comment
  UC562271  Carex echinata subsp. echinata Joseph P. Tracy 1932-7-14 10567 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  SEINET7827267 Image available Carex fracta J. P. Tracy 1950-7-2 18963 Humboldt "Fern Spring;" Happy Camp Mountain (Trinity Summit Range, 6 mi NE of Hawkins Bar.) Comment
  JEPS25968  Carex geyeri Joseph P. Tracy 1933-7-11 12662 Humboldt Horse Mountain 1432 Comment
  BLMAR179  Carex globosa Jennifer Anthony-Wheeler 1994-6-7 179 Humboldt King range, Near horse Mt ridgee 670 Comment
  UC562715  Carex globosa Joseph P. Tracy 1932-4-23 9832 Humboldt Englewood North Coast Ranges 91 Comment
  CAS-BOT-BC146593  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Phillipsville; facing South Fork of Eel River 121 Comment
  CAS-BOT-BC22316  Carex harfordii Joseph Prince Tracy 1927-7-17 8279 Humboldt Three Cabins; grassy slopes on lower western foothills of Chaparral Mountain. Edge of pond. 457 Comment
  CAS-BOT-BC21752  Carex hassei Joseph Prince Tracy 1927-6-17 8170 Humboldt Big Lagoon. 6 Comment
  CAS-BOT-BC21021  Carex hendersonii W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  UC1103593  Carex hendersonii Joseph P. Tracy 1937-6-20 15348 Humboldt 10 mi upstream mouth of Bear River; Bear River 152 Comment
  RSA214832  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of the Eel River Comment
  SEINET11631285  Carex hendersonii Unknown 1936-1 13479 Humboldt near Scotia 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
  RSA88658  Carex laeviculmis F. W. Peirson 1941-7-23 13091 Humboldt Van Damme State Park. Along the creek about 2 miles from camp. Comment
  RSA88710  Carex lenticularis var. limnophila F. W. Peirson 1926-7-13 7046 Humboldt Along shore of first lagoon south of Orick. Comment
  UC249733  Carex lenticularis var. limnophila Joseph P. Tracy 1923-6-17 6275 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  CAS-BOT-BC31468  Carex leptopoda W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula. Comment
  UC1133402  Carex lyngbyei H. S. Yates 1936-6-23 5861 Humboldt 1 mi w Bayside; Eureka Quadrangle 0 Comment
  UC1982417  Carex mariposana Barbara Wilson, Richard Brainerd, Susan Erwin, Christine Jordan and Mike Friend 2003-6-20 10950 Humboldt Sundew Meadow on South Fork Mountain, on Shasta-Trinity National Forest road 3N32. Comment
  JEPS79958  Carex mariposana Joseph P. Tracy 1936-6-17 14954 Humboldt lower foothills of nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UC562261  Carex multicaulis Joseph P. Tracy 1935-6-23 13996 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC709322  Carex multicostata Joseph P. Tracy 1939-7-9 16316 Humboldt 1 mi n Murphy Meadows; Bald Mt. 914 Comment
  CHSC34063  Carex nudata Joseph P. Tracy 1911-6-4 3220 Humboldt Northern Coast Region. Along Little River, 5 miles from the coast. 121 Comment
  HSC49245  Carex nudata M. A. Baker 1979-4-27 701 Humboldt Six Rivers National Forest Comment
  UC562448  Carex nudata Joseph P. Tracy 1935-7-21 14120 Humboldt along river at Willow Creek Trinity River Valley 152 Comment
  HSC76804  Carex obnupta L. P. Janeway 1982-8-7 113 Humboldt Dry Lagoon 3 Comment
  HSC7063  Carex obnupta J. W. Johnson 1962-4-11 1242 Humboldt Arcata, Dune 3 North, Christenson Farm, Samoa Peninsula Comment
  JEPS80016  Carex obnupta Joseph P. Tracy 1906-5-13 2459 Humboldt Ocean Beach at Humboldt Bay Northern Coast Region, Humboldt Bay Comment
  SD51256  Carex obnupta Darley F. Howe 1961-8-1 3107 Humboldt Under Picea; 3 miles north of Arcata. Comment
  SEINET3905665  Carex oederi H. E. Parks 1935-1 5214 Humboldt In center of Dry Lagoon, south of Orick.; 0 Comment
  HSC65948  Carex ovalis M. A. Baker 1980-7-19 2991 Humboldt Near Bret Hole. 1814 Comment
  UC562552  Carex ovalis Joseph P. Tracy 1927-7-17 8279 Humboldt lower w foothills of Chaparral Mountain; North Coast Ranges, Three Cabins 457 Comment
  POM126147  Carex pachystachya Joseph P. Tracy 1923-6-17 6278 Humboldt Big Lagoon 6 Comment
  SEINET7570348 Image available Carex pachystachya Ray Tallent 1987-8-11 896 Humboldt Six Rivers National Forest, roadside S of Horse Mtn. 1390 Comment
  UC1103100  Carex pachystachya Joseph P. Tracy 1935-6-23 13983 Humboldt French Camp Ridge 1066 Comment
  UC562659  Carex pachystachya Joseph P. Tracy 1935-7-27 14287 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1103580  Carex pachystachya Joseph P. Tracy 1927-6-19 8204 Humboldt Big Lagoon Northern Coast Region 6 Comment
  RSA22203  Carex pansa D. D. Keck 1938-8-5 4766 Humboldt Clam Beach. Comment
  HSC32420  Carex pansa Rudolf W. Becking 1974-6-15 Humboldt Between Samoa and Fairhaven, W of connecting road Comment
  CAS-BOT-BC118008  Carex rossii Joseph Prince Tracy 1932-5-10 9937 Humboldt Bear River Redge, on open grassy hills. 609 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
  UC562269  Carex stipata var. stipata Joseph P. Tracy 1931-5-17 9422 Humboldt opposite mouth Willow Creek (Lack Pond); Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC116677  Carex subfusca Joseph Prince Tracy 1935-7-27 14296 Humboldt Open places at McKay Prairie, along creek in meadow. 1584 Comment
  CAS-BOT-BC115541  Carex unilateralis Joseph Prince Tracy 1933-6-9 12539 Humboldt Fortuna, Bed of winter pool. 18 Comment
  CAS-BOT-BC115285  Carex utriculata Joseph Prince Tracy 1934-8-29 13622 Humboldt South Fork Mountain; in wet meadow at McKay Camp Comment
  UC1103611  Carex vesicaria var. major J. P. Tracy 1901-5-12 1088 Humboldt immediate vicinity Eureka 0 Comment
  HSC59487  Carpobrotus edulis M. A. Ericksen 1979-4-29 238 Humboldt Across from the Samoa Cookhouse, Samoa, on Samoa Peninsula. Comment
  JEPS21129  Castilleja affinis subsp. litoralis Myrtle Paulson 1918-4-28 Humboldt Eureka Comment
  JEPS57403  Castilleja affinis subsp. litoralis L. R. Heckard with T. I. Chuang 1968-7-4 1979 Humboldt n end Big Lagoon Comment
  HSC91171  Castilleja ambigua subsp. humboldtiensis Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  JEPS24219  Castilleja applegatei subsp. pinetorum Peter H. Raven with R. Snow 1958-7-20 13636 Humboldt 2.0 mi s junction of Titlow Hill and Friday Ridge roads (near Grouse Mountain) Comment
  JEPS8625  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1935-7-24 14203 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  RSA167243  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1950-7-2 18974 Humboldt Near top of ridge, 1 mile south of Grizzly Camp. Comment
  JEPS2925  Castilleja arachnoidea W. L. Jepson Jul 16 1902-Jul 23 1902 2054 Humboldt Trinity Summit 2133 Comment
  HSC101746  Castilleja attenuata J. P. Smith, J. O. Sawyer 2010-5-2 12810 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  RSA296733  Castilleja exserta subsp. latifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9210 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA518654  Castilleja litoralis L. R. Heckard, T. I. Chuang 1971-7-1 2667 Humboldt Slope at south end of Freshwater Lagoon, 2 miles southwest of Orick. Comment
  HSC56431  Castilleja miniata Griswold, Butler 1979-7-12 7139 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC176983  Castilleja pruinosa Joseph P. Tracy 1912-7-31 3931 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC199387  Castilleja pruinosa Harley P. Chandler Jun 1901 1364 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Valley 152 Comment
  JEPS103929  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7875 Humboldt 4.3 mi SE of junction of rt. 299 and Titlow Hill Rd. on way to Horse Mt. Comment
  UC1502114  Ceanothus R. Sutherland 1976-5-11 7 .11.76 Humboldt just outside Sec 32 Pt. Delgado Quad.; Pt. Delgada Quad. 609 Comment
  UC1502123  Ceanothus R. Sutherland 1975-7-5 6 .5.7 75 Humboldt Garberville Quad. 243 Comment
Read comments
May 26 2014
  HSC44429  Ceanothus arcuatus Brad Klipfel 1975-5-30 639 Humboldt Horse Mtn. Comment
  SEINET200665  Ceanothus cordulatus J. P. Tracy 1935-7-14 14092 Humboldt Grouse Mountain ridge near 'Clear Lake 1524 Comment
  RSA134579  Ceanothus incanus Percy C. Everett, E. K. Balls 1959-10-26 23977 Humboldt 6 mi SE from Honeydew on Old Coast Road to Ettersberg. 518 Comment
  UC1502128  Ceanothus incanus R. Sutherland 1975-5-13 1 Humboldt Shelter Cove at King Range sign Garberville Quad. 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
  UC176965  Ceanothus integerrimus Joseph P. Tracy 1913-6-21 4249 Humboldt Dinsmore's Ranch Valley of Van Duzen River, Northern Coast Ranges (opposite Buck Mt.,) 762 Comment
  RSA21590  Ceanothus integerrimus var. californicus Carl B. Wolf 1937-8-13 9235 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC97627  Ceanothus integerrimus var. integerrimus Cara Witte 2007-6-5 209 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.25 miles south of intersection with 5N04. 1405 Comment
  CAS-BOT-BC51144  Ceanothus lemmonii D. Haskamp; E. Sonnenblick; M. Taft 1995-4-23 38 Humboldt On rd. A16 NE of Basin Gulch campground 11 miles. On west side of road 731 Comment
  CAS-BOT-BC51145  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC101655  Ceanothus oliganthus var. sorediatus J. P. Smith, J. O. Sawyer 2011-4-23 13115 Humboldt Along Salmon Creek Rd., 2.5 miles from its Junction with U.S. 101 91 Comment
  HSC37605  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 9 .11775 Humboldt Along county rd. 213 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
  CAS-BOT-BC51212  Ceanothus parryi Carl B. Wolf 1941-7-28 11092 Humboldt Slopes along Eel River, 1 mi. so. of Miranda. 30 Comment
  UCD112499  Ceanothus parryi B. L. Kay 1955-6-2 s.n. Humboldt Wagner Ranch, 5 miles southwest of Graberville. Comment
  HSC43189  Ceanothus pumilus R. Sutherland 1976-4-24 1 .24476 Humboldt 518 Comment
  CAS-BOT-BC52989  Ceanothus thyrsiflorus A. A. Heller 1923-7-9 13782 Humboldt On grassy slopes along the grade south of Eureka Comment
  HSC76579  Ceanothus thyrsiflorus John Demarinis 1981-7-21 873 Humboldt Near Table Bluff 38 Comment
  JEPS42147  Ceanothus thyrsiflorus W. L. Jepson 1921-8-11 9409 Humboldt Big Lagoon, S end of Fern prairie Humboldt coast Comment
  RSA46882  Ceanothus thyrsiflorus Doris K. Kildale 1926-6-18 2399 Humboldt Gold Bluffs. Comment
  UC170229  Ceanothus thyrsiflorus Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5623 Humboldt near Korbel (Bald Mt.); North Coast Ranges, Bald Mt. Comment
  UCD112727  Ceanothus thyrsiflorus K. Twitchell 1996-5-11 25 Humboldt Crannell, along old Highway 101 at Moonstone beach access. 36 Comment
  HSC101670  Ceanothus thyrsiflorus var. thyrsiflorus J. P. Smith, J. O. Sawyer 2011-4-23 13131 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  CAS-BOT-BC52867  Ceanothus velutinus Joseph P. Tracy 1932-7-17 10698 Humboldt Klamath Mountains - open ground at Corral Prairie 1524 Comment
  UC164836  Ceanothus velutinus Joseph P. Tracy 1911-7-9 3455 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, along Willow Creek 182 Comment
  CAS-BOT-BC272098  Centaurea melitensis T. C. Fuller 1961-3-21 5856 Humboldt 1 mi. NE limits Eureka Comment
  CDA7178  Centaurea nigra David Kratville 2007-8-24 PDR# 1440729 Humboldt Holmes; end of Holmes Flat Rd. Comment
  HSC61725  Centaurea solstitialis Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan 198 Comment
  UC153952  Centaurium davyi Joseph P. Tracy 1907-7-4 2585 Humboldt 0.5 mi n mouth of Little River; Northern Coast Ranges 15 Comment
  RSA391522  Centaurium muehlenbergii M. V. Hood 1940-08 s.n. Humboldt Eel River - near Redway. 457 Comment
  RSA54130  Centaurium muehlenbergii H. M. Pollard 1945-8-28 s.n. Humboldt Near Harley place, New Orleans. Comment
  UC1225817  Centaurium muehlenbergii Joseph P. Tracy 1948-8-22 18109 Humboldt 4 mi e Carlotta (on Van Duzen River); Van Duzen River 30 Comment
  CDA38373  Centaurium tenuiflorum E. C. Whitney 1976-9-7 s.n. Humboldt Loleta. 0 Comment
  HSC74322  Cephalanthera austiniae Gail Newton 1980-7-20 1627 Humboldt Near Bell Swamps 1426 Comment
  HSC99499  Cephalanthera austiniae K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 159 Humboldt Near North Trinity Mtn, along Forest Service Rd 10NO2, between two forks of Domingo Creek 1433 Comment
  CAS-BOT-BC384896  Cerastium arvense L. R. Abrams 1916-7-18 6134 Humboldt Arcata to Trinidad Comment
  HSC4111  Cerastium fontanum subsp. vulgare Richard Steele 1962-5-2 24 Humboldt .25 mi. W of HSC campus 15 Comment
  HSC44765  Cerastium fontanum subsp. vulgare Maralyn O'Meara 1972-6-8 87 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  CAS-BOT-BC85657  Chamaecyparis lawsoniana G. A. Coleman 1901-7-25 s.n. Humboldt Near head of Supply Creek, Hoopa Indian Reservation Comment
  HSC72829  Chamaecyparis lawsoniana Gail Newton 1980-6-16 195 Humboldt Near Onion Mtn. 1280 Comment
  RSA47096  Chamaecyparis lawsoniana Doris K. Kildale 1926-8-15 2502 Humboldt Willow Creek Canyon 770 Comment
  UC1199377  Chamaemelum nobile J. P. Tracy 1896-8-7 14 Humboldt immediate vicinity of Eureka (on streets in Eureka, J Street) 0 Comment
  HSC55282  Chamaesyce serpyllifolia Overton, Butler 1979-8-2 12709 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC502947  Chamaesyce serpyllifolia Joseph P. Tracy 1930-10-12 9208 Humboldt Eel River Northern Coast Ranges (Alton to Fortuna) 15 Comment
  HSC44520  Chamerion angustifolium subsp. circumvagum Brad Klipfel 1973-7-1 127 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC75939  Cheilanthes gracillima Overton, Butler 1979-7-24 9702 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC82123  Cheilanthes gracillima Thomas W. Nelson 1979-7-11 4997 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC132200  Chenopodium album Joseph P. Tracy 1905-10-1 2394 Humboldt near mouth of Elk River; Northern Coast Range, region about Humboldt Bay 0 Comment
  SEINET4558631  Chenopodium atrovirens Joseph P. Tracy 1932-1 10500 Humboldt Local along trail 1585 Comment
  JEPS59733  Chenopodium botrys W. L. Jepson 1932-7-30 16461 Humboldt Bull Creek 121 Comment
  UC179956  Chenopodium murale Joseph P. Tracy 1914-6-26 4519 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC451380  Chimaphila menziesii L. B. Kildale 1930-8-10 10530 Humboldt Snow Camp, head of Redwood Creek Comment
  CAS-BOT-BC451386  Chimaphila menziesii Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Nat. Trail 1524 Comment
  HSC17948  Chimaphila menziesii D. E. Anderson 1963-5-18 2449 Humboldt Near junction of New and Trinity Rivers Comment
  HSC76593  Chimaphila umbellata Teresa Prendusi 1981-7-9 231 Humboldt Near Cedar Camp 1256 Comment
  UC1409178  Chimaphila umbellata Robert F. Thorne and P. Everett 1965-8-5 35145 Humboldt King Mt. 1219 Comment
  UC21656  Chimaphila umbellata Bolander June 1867 6543 Humboldt Parker's Station, Eureka Trail Comment
  RSA43688  Chrysanthemum parthenium H. M. Pollard 1947-8-28 s.n. Humboldt Roadside near Perch Creek, Orleans region Comment
  UC519307  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1933-8-6 12933 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UC526690  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1934-8-29 13641 Humboldt summit near Blake Lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC665684  Chrysolepis chrysophylla var. minor J. P. Tracy and H. E. Parks 1941-8-28 11541 Humboldt Blake Lookout area; South Fork Mountain 1706 Comment
  SD42299  Chrysolepis sempervirens Carl B. Wolf 1937-9-13 3089 Humboldt North Coast Range, Summit of Grouse Mountain. 1645 Comment
  HSC36884  Chrysosplenium glechomifolium J. P. Smith, Thomas W. Nelson 1976-4-27 8616 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  CAS-BOT-BC420346  Chrysosplenium glechomifolium V. Rattan 1879-6-1 27 Humboldt Long Prarie Creek Comment
  HSC58807  Cinna latifolia G. L. Clifton 1979-7-31 11865 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA183599  Cinna latifolia D. E. Anderson 1965-9-5 4085 Humboldt Along Mad river, ca. 3 miles south of Blue Lake Comment
  HSC56162  Circaea alpina subsp. pacifica G. L. Clifton, Terry Griswold 1979-8-1 12038 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  RSA125055  Circaea alpina subsp. pacifica Peter H. Raven, R. Snow 1958-7-20 13640 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  UC1714534  Circaea alpina subsp. pacifica Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  UC1223063  Cirsium arvense Joseph P. Tracy 1950-8-1 19245 Humboldt near summit e of North Fork of Mad River Comment
  UC582530  Cirsium arvense Joseph P. Tracy 1933-8-13 12963 Humboldt Arcata Bottom 15 Comment
  SEINET5507070 Image available Cirsium arvense John Thomas Howell 1931-6-17 6724 Humboldt Redwood Hwy, 1.5 mi N of Orick Comment
  UCD130557  Cirsium arvense Collector Unknown Date Unknown s.n. Humboldt Exact location unknown. Comment
  CHSC114324  Cirsium douglasii B. Villegas 1998-8-5 Humboldt Nr. Berry Summit on Titlow Hill Rd., 4.8 mi. S of Hwy 299. Comment
  UCD130619  Cirsium douglasii var. douglasii Collector Unknown Date Unknown s.n. Humboldt Horse Mt. Comment
  CAS-BOT-BC285527  Cirsium occidentale var. candidissimum Doris K. Kildale 1926-5-2 1999 Humboldt Kneeland Prairie - summit 853 Comment
  SEINET202627  Cirsium remotifolium Joseph P. Tracy 1949-8-11 18472 Humboldt East of headwaters of Redwood Creek beginning where the electric power line crosses and working south; Kinsey ridge s 1280 Comment
  HSC96518  Cirsium vulgare Gordon Leppig 1998-8-23 1071 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC98792  Cirsium vulgare Cara Witte 2007-7-26 588 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1283 Comment
  UCD130816  Cirsium vulgare R. E. Nelson 1956-7-3 192 a Humboldt 1.5 miles south of Brush Mountain in vicinity of Salyer , Six Rivers National Forest. 792 Comment
  CAS-BOT-BC160974  Clarkia amoena subsp. amoena L. R. Abrams 1922-6-25 8229 Humboldt 6 miles north of Garberville along Eel River Comment
  JEPS43549  Clarkia amoena subsp. amoena W. L. Jepson 1902-8-3 2141 Humboldt near Capetwon; Bear River 182 Comment
  UC204004  Clarkia amoena subsp. amoena Joseph P. Tracy 1918-7-3 4989 Humboldt Wilder Ridge Northern Coast Ranges, Kings Peak Range 762 Comment
  CAS-BOT-BC164179  Clarkia concinna S. K. Harris; J. P. Tracy 1936-6-10 3265 Humboldt West of the South Fork of the Trinity River near its mouth 640 Comment
  UC144067  Clarkia concinna subsp. concinna Joseph P. Tracy 1908-6 2742 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  RSA244979  Clarkia concinna subsp. concinna B. D. Rogers, W. J. Ferlatte 1966-6-15 2105 Humboldt Larabee Valley 762 Comment
  UC1222853  Clarkia concinna subsp. concinna Joseph P. Tracy 1950-5-24 18691 Humboldt between McDonald's and Hopland (along old highway) Comment
  UC1537616  Clarkia concinna subsp. concinna Gordon H. True Jr. 1936-5-11 455 Humboldt w Miranda; Salmon Creek 457 Comment
  HSC78965  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 3 Comment
  UC153945  Clarkia davyi Joseph P. Tracy 1910-4-24 3127 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC562524  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1936-6-10 14935 Humboldt w of mouth South Fork Trinity River 609 Comment
  UC125958  Clarkia gracilis subsp. sonomensis Mrs. M. H. Manning 1902-1 Humboldt near Hupa Comment
  UC144077  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1908-6 2679 Humboldt nw slope Buck Mountain; Northern Coast Ranges 609 Comment
  POM299419  Clarkia purpurea subsp. quadrivulnera C. C. Harris, S. K. Harris, J. P. Tracy 1942-6-22 1261 Humboldt 7 miles north and 5 miles east of Willow Creek 165 Comment
  UC1071917  Clarkia purpurea subsp. quadrivulnera H. and M. Lewis 1947-6-14 418 Humboldt 0.1 mi e Van Duzen River Bridge (4.129) (Highway 36) Comment
  CAS-BOT-BC172391  Clarkia purpurea subsp. viminea S. K. Harris; J. P. Tracy 1936-6-10 3277 Humboldt Hills west of the South Fork of the Trinity River near its mouth 640 Comment
  HSC98104  Clarkia rhomboidea Cara Witte 2007-6-20 309 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  HSC41252  Claytonia exigua subsp. glauca Brad Klipfel 1974-5-27 401 Humboldt Horse Mtn. Comment
  UC183596  Claytonia exigua subsp. glauca Joseph P. Tracy 1913-5-4 4049 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC41230  Claytonia lanceolata Brad Klipfel 1974-5-8 318 Humboldt Horse Mtn. Comment
Read comments
Sep 23 2019
  UC494113  Claytonia parviflora subsp. parviflora H. E. Parks, J. P. Tracy 1930-5-25 877 Humboldt Laribee Valley Comment
  HSC17681  Claytonia perfoliata S. R. Johnson 1965-3-28 24 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC40905  Claytonia perfoliata subsp. intermontana J. O. Sawyer 1970-4-24 2191 Humboldt Along FS Rd. 7N04 at Cedar Creek below Groves Prairie Comment
  JEPS43187  Claytonia perfoliata subsp. mexicana Joseph P. Tracy 1916-4-30 4682 Humboldt Table Bluff Northern Coast Ranges, Humboldt Bay (aroung Humboldt Bay) 152 Comment
  UC183594  Claytonia perfoliata subsp. perfoliata Joseph P. Tracy 1913-5-4 4057 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC494168  Claytonia perfoliata subsp. perfoliata H. E. Parks, J. P. Tracy 1930-5-25 877 Humboldt Laribee Valley Comment
  UC161027  Claytonia rubra subsp. depressa Joseph P. Tracy 1910-4-24 3129 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  HSC17695  Claytonia rubra subsp. depressa S. J. Hawks 1965-2-12 3 Humboldt N end of Eureka Airport Comment
  HSC82021  Claytonia saxosa Thomas W. Nelson, James Nelson 1980-6-10 5398 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  HSC23727  Claytonia sibirica Tim Baroni 1971-7-6 124 Humboldt 15 mi. S of Ferndale on Mattole Rd. Comment
  UCD20385  Claytonia sibirica K. Esau 1935-5-22 s.n. Humboldt Fort Seward. Comment
  HSC91387  Claytonia sibirica Jeff Dunk, David Munger, Tallchief Comet 1987-2-24 Humboldt Arcata, NE of HSU field House to Jolly Giant Creek Comment
  SEINET9315908  Claytonia sibirica Unknown 1932-7-14 10536 Humboldt Trinity Summit Comment
  CAS-BOT-BC92595  Clematis ligusticifolia Henry M. Pollard 1945-8-28 s.n. Humboldt Near Harley place. Near Orleans. Comment
  UC1196209  Clematis ligusticifolia Joseph P. Tracy 1922-10-1 6118 Humboldt Van Duzen R. near Carlotta; Northern Coast Ranges, Van Duzen R. 30 Comment
  HSC15445  Clintonia andrewsiana J. F. Knezevich 1968-5-13 428 Humboldt Near Arcata above Freshwater Forest Comment
  JEPS61594  Clintonia andrewsiana W. L. Jepson 1932-7-29 16444 Humboldt Van Duzen River, Grizzly Flat Van Duzen River; , Grizzly Flat Comment
  UC179954  Clintonia andrewsiana Joseph P. Tracy 1914-5-17 4473 Humboldt between Ryans Slough and Freshwater Creek (at the Cumens Claim, region about Humboldt Bay); Northern Coast Region 304 Comment
  HSC72683  Clintonia uniflora J. P. Smith 1977-7-3 9265 Humboldt Onion Lake Comment
  HSC75449  Collinsia grandiflora J. O. Sawyer 1980-7-18 3583 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  JEPS26343  Collinsia heterophylla Joseph P. Tracy 1914-5-14 4464 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC41245  Collinsia parviflora Brad Klipfel 1974-5-27 391 Humboldt Horse Mtn. Comment
  JEPS6217  Collinsia parviflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 8959 Humboldt near McKay Camp (openings in fir forest); Northern Coast Ranges, South Fork Mtn 1676 Comment
  HSC38493  Collinsia rattanii D. E. Anderson, J. P. Smith 1971-6-18 - 1093 Humboldt Horse Mtn. Comment
  JEPS6173  Collinsia rattanii Joseph P. Tracy 1935-6-23 13994 Humboldt French Camp Ridge 1066 Comment
  UC582448  Collinsia torreyi var. wrightii Joseph P. Tracy 1932-7-12 10467 Humboldt Trinity Summit, Head of Brett Hole Head of Brett Hole; Trinity Summit, Head of Brett Hole 1828 Comment
  UC879765  Collomia heterophylla Elizabeth Parsons Hawver 1915-6-1 Humboldt Carlotta Comment
  RSA21450  Collomia heterophylla C. B. Wolf 1937-8-13 9214 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1470711  Collomia heterophylla Barbara Ertter with Thomas J. Delendick 1987-5-16 6944 Humboldt on s side Hwy 299 above Willow Creek (ca 3 mi e of Berry Summit, ca 20 air mi e of Arcata, near large volcanic rock) 800 Comment
  UC978530  Collomia tracyi Joseph P. Tracy 1939-8-5 16373 Humboldt sand bars along river Van Duzen River, Dinsmore's 737 Comment
  UC1197344  Conioselinum pacificum Joseph P. Tracy 1913-8-31 4388 Humboldt near Indianola (s end of Humboldt Bay); Northern Coast Region, Humboldt Bay Region 0 Comment
  UCR275122  Conium maculatum Charity A. Hartshorn 2016-4-24 19 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  CAS-BOT-BC286024  Conyza canadensis Doris K. Kildale 1925-9-6 1283 Humboldt Somes Bar 243 Comment
  HSC91919  Conyza canadensis E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  HSC73022  Corallorhiza maculata Gail Newton 1980-8-10 2028 Humboldt Near Blake Mtn. 1798 Comment
  RSA183523  Corallorhiza maculata D. E. Anderson 1965-5-15 3687 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  UC1196452  Corallorhiza maculata Joseph P. Tracy 1935-7-25 14252 Humboldt Brett Hole Trinity Summit (lower end) 1584 Comment
  UC1222188  Corallorhiza mertensiana Joseph P. Tracy 1950-7-2 18959 Humboldt 6 mi ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC176372  Corallorhiza striata Joseph P. Tracy 1913-6-14 4131 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  JEPS93181  Cordylanthus maritimus subsp. palustris Margriet Wetherwax and Kevin Downing 1993-8-9 2462 Humboldt N of Eureka, along N side of Eureka Slough; Jacobs St. turn-off of 101N just beyond bridge over slough; between two Peterbilt warehouses; population extends sporadically to Johns Used and Crashed Cars 5 Comment
  POM21204  Cordylanthus pilosus subsp. pilosus L. R. Abrams 1916-7-10 5964 Humboldt Between Harris and Alder Pt. Comment
  HSC41586  Cordylanthus tenuis subsp. viscidus Thomas W. Nelson, Jane P. Nelson 1977-9-3 3718 Humboldt Along ridge between Bear Creek and Blanket Creek 1494 Comment
  HSC39628  Cornus nuttallii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2733 Humboldt Just W of Goat Hill, along branch road off FS 2S08 1463 Comment
  HSC6413  Cornus nuttallii J. J. Wagoner 1965-5-1 20 Humboldt 6 mi. W of Willow Creek along Hwy. 299 Comment
  HSC95877  Cornus nuttallii Will Ferrand 2002-4-27 30 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  SEINET12137714  Cornus nuttallii F. H. Utech 1988-1 88 -278 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, bluff above Van Duzen River 800 Comment
  CAS-BOT-BC212179  Cornus sericea Joseph P. Tracy 1929-8-18 8653 Humboldt Dinsmore's Ranch, on Van Duzen River opposite Buck Mountain 670 Comment
  HSC58048  Cornus sericea subsp. sericea G. L. Clifton, Griswold 1979-8-1 11907 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC210542  Cornus sessilis Carl B. Wolf 1941-2-28 9971 Humboldt Junction of Willow Creek & its e. fork 457 Comment
  UC668055  Coronopus didymus Joseph P. Tracy 1938-8-20 16121 Humboldt Eureka 30 Comment
  UC146217  Corylus californica Joseph P. Tracy 1906-6-24 2497 Humboldt Humboldt Hill, S side North Coast Region, region about Humboldt Bay 0 Comment
  UC902052  Corylus californica Joseph P. Tracy 1949-8-7 18435 Humboldt Trinity Summit, near Box Camp 1463 Comment
  CAS-BOT-BC180307  Corylus cornuta subsp. californica H. E. McMinn 1922-8-4 346 Humboldt Along Van Duzen River Comment
  HSC104410  Corylus cornuta subsp. californica Adam N. Canter 2017-6-15 9 Humboldt Near Fields Landing; Humboldt Hill, Spring Street 100 Comment
  CHSC102917  Cotoneaster franchetii Peter F. Zika 2007-7-20 23323 Humboldt North Coast. Lynda Lane near high school, S end of Big Lagoon. 20 Comment
  RSA34307  Cotula australis C. Kistner 1935-5-15 s.n. Humboldt Arcata Bottom. Comment
  UC1199279  Cotula coronopifolia Joseph P. Tracy 1922-5-28 6058 Humboldt Little River Beach North Coast Ranges. Little River Beach 6 Comment
  HSC5433  Cotula coronopifolia W. F. Nickel 1965-5-12 Humboldt On H.S.C. campus behind the Biological Sciences building Comment
  HSC77347  Crassula connata L. P. Janeway 1983-5-1 256 Humboldt W of Samoa Rd. and N of Coast Guard lands 6 Comment
  SD39858  Crepis capillaris Edith A. Purer 1932-7-30 4683 Humboldt South of Orick. Comment
  CAS-BOT-BC291484  Crepis capillaris Roxana S. Ferris 1955-7-11 12977 Humboldt Near Blue Lake Comment
  SDSU3878  Crepis capillaris D. F. Howe 1961-7-31 3098 Humboldt 37.7 miles south of Eureka on #101. Comment
  HSC56938  Crepis pleurocarpa Overton, Butler 1979-7-23 9412 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC726368  Crepis vesicaria A. A. Heller 1923-7-9 13777 Humboldt near Blue Lake (5 mi from Arcata) Comment
  SEINET10529035  Crocosmia aurea Charlene A. Bennett 1976-8-6 Bennett 477 Humboldt Collected by hwy. 101, N side of orick. Rocky area, densely forested by river 30 Comment
  UC1239661  Cryptantha affinis Joseph P. Tracy 1937-7-25 15546 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC32552  Cryptantha flaccida Hy-Am Pum Jul 1888 Humboldt Comment
  UC175774  Cryptantha intermedia Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  CHSC10140  Cryptantha leiocarpa J. W. Johnson 1962-4-10 1237 Humboldt Arcata. West slope of Ridge 3 behind the foredunes. Christenson Farm, Samoa Penisula. Comment
  UC673225  Cryptantha milobakeri Lincoln Constance and Reed C. Rollins 1942-5-11 2878 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  RSA758117  Cupressus macrocarpa Doug Goldman 2004-12-20 2982 Humboldt Open area with sandy loam soil, just below the edge of a NW-facing bluff overlooking the beach and a few hundred feet to N. of the table Bluff lighthouse facility. 43 Comment
  SEINET10531493  Cupressus macrocarpa Fred G. Meyer 1938-4-7 Meyer 1397 Humboldt About 20 miles north of Eureka Comment
  HSC98890  Cuscuta californica var. californica Cara Witte 2008-8-5 987 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  JEPS94283  Cuscuta campestris Vernon Oswald and Lowell Ahart 1997-9-4 8847 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
  HSC63068  Cuscuta salina David Wheeler 1979-5-28 151 Humboldt S end of sewage oxidation ponds Comment
  UC153987  Cuscuta salina var. major Joseph P. Tracy 1901-8-7 1256 Humboldt Humboldt Bay Region Northern Coast Region 0 Comment
  UC450137  Cuscuta subinclusa P. E. Goddard 1907-7-31 b 129 Humboldt Big Bend Mad River Comment
  UCD60113  Cynodon dactylon Joseph P. Tracy 1939-8-18 16427 Humboldt Eureka. 15 Comment
  UC1100178  Cynosurus cristatus Malcolm A. Nobs and S. Galen Smith 1949-8-3 1195 Humboldt marsh and bog land at the southern outskirts Eureka Comment
  UCD60168  Cynosurus echinatus J. I. Mallory 1955-6-7 114 Humboldt North end of Luke Prairie. 350 Comment
  SEINET3909435  Cyperus eragrostis J. P. Smith, Advanced Plant Taxonomy Class 1971-10-9 4990 Humboldt The Mad River above the Fish Hatchery.; 0 Comment
  CAS-BOT-BC189762  Dactylis glomerata Doris K. Kildale 1927-6-26 3591 Humboldt Patrick's Point. Comment
  UC37938  Dactylis glomerata Joseph Burtt Davy and Walter C. Blasdale 1899-6-16 5557 Humboldt Scotia Comment
  UCD60985  Danthonia californica E. B. Copeland 1930-6-5 Humboldt Scotia. Comment
  RSA34244  Danthonia californica var. americana L. Larsen 1935-5-25 s.n. Humboldt Redway [county not specified on label] Comment
  UC184354  Danthonia californica var. americana Joseph P. Tracy 1912-6-9 3650 Humboldt Alton Northern Coast Region 30 Comment
  HSC58817  Danthonia intermedia subsp. intermedia G. L. Clifton, Griswold 1979-8-1 12076 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC33767  Daucus pusillus Ron Rahlston 1975-5-24 77 Humboldt Samoa Dunes off Samoa Blvd., across from boat landing Comment
  RSA470773  Daucus pusillus M. O'Mera 1974-6-2 496 Humboldt South Spit to Humboldt Bay Comment
  CDA38308  Daucus pusillus T. C. Fuller 1958-6-17 1904 Humboldt Zanone Ranch, Cape Mendocino. 0 Comment
  POM232322  Daucus pusillus I. L. Wiggins 1930-7-11 4678 Humboldt Near Samoa Comment
  JEPS23882  Delphinium decorum subsp. tracyi Frank W. Gould 1939-5-30 837 Humboldt Near top of Horse Mountain (about 25 miles due east of Eureka) Comment
  CAS-BOT-BC9030  Delphinium decorum subsp. tracyi Doris K. Kildale 1929-4-28 7464 Humboldt Between Little Van Duzen River and Dinsmores on Eureka-Red Bluff Road Comment
  CAS-BOT-BC9958  Delphinium nudicaule N. Wynne; M. Peckham; J. Barnesberger 34 Humboldt Lord Elis Quad. West side of Titlow Road, 0.35 miles S of Hwy. 299 853 Comment
  HSC70229  Delphinium nuttallianum M. A. Baker 1980-6-8 1897 Humboldt Near Buck Flat. 1554 Comment
  UC503038  Delphinium nuttallianum Joseph P. Tracy 1929-4-28 8556 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC121967  Delphinium trolliifolium Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA20971  Delphinium trolliifolium Carl B. Wolf 1937-6-14 8827 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  UC1222575  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) Twin Lakes Comment
  POM299320  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon near Orick Comment
  UC1196335  Delphinium trolliifolium Joseph P. Tracy 1946-6-15 17562 Humboldt foothills of Horse Mountain 1066 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
  UC984819  Delphinium trolliifolium A. M. Vollmer and L. Beane 1951-6-6 106 Humboldt on road between Orick and Weitchpec Comment
  SEINET10515745  Deschampsia cespitosa Mark Stopher 1980-6-4 Stopher 95 Humboldt Very common along Elk River near Hwy 101 bridge. Eureka Quadrangle 7.5', T4N R1W S4 SW1/4. 1 Comment
  HSC93740  Deschampsia cespitosa subsp. holciformis Gordon Leppig 1998-7-19 983 Humboldt Big Lagoon County Park, Big Lagoon Bog 2 Comment
  HSC74436  Deschampsia elongata Gail Newton 1980-8-10 2067 Humboldt Near Blake Mtn. 1707 Comment
  JEPS75420  Deschampsia elongata W. L. Jepson 1932-7-30 16450 Humboldt Bull Creek 121 Comment
  RSA126941  Deschampsia elongata H. S. Yates 1936-6-17 5706 Humboldt Lower northwest slope of Buck Mountain 793 Comment
  UC1103216  Deschampsia elongata Joseph P. Tracy 1950-7-31 19232 Humboldt Grouse Mt. 1524 Comment
  UC1131461  Deschampsia elongata H. S. Yates 1936-6-17 5706 Humboldt lower n.w. slope of Buck Mt.; South Fork Peak Quad. Comment
  UCD63575  Deschampsia elongata Harley P. Chandler 1901-6-1 1331 Humboldt Hupa Indian Reservation. 304 Comment
  JEPS53431  Descurainia pinnata W. L. Jepson 1902-7-16 2049 a Humboldt Trinity Summit Comment
Read comments
Jan 17 2008
  UC1196302  Dicentra formosa Joseph P. Tracy 1947-8-24 17914 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  UCR179275  Dicentra formosa R. G. Swinney 1968-3-28 237 Humboldt East of Humboldt State College, Arcata 152 Comment
  UCR19332  Dicentra formosa Rosemary Leen 1977-4-2 s.n. Humboldt Hwy 299, east of Blue Lake. 1220 Comment
  UC1196307  Dicentra formosa Joseph P. Tracy 1920-4-18 5315 Humboldt near Glendale (Mad River, around Humboldt Bay); Northern Coast Region, Humboldt Bay, Mad River 30 Comment
  HSC65838  Dicentra formosa subsp. oregana Gail Newton 1980-6-16 182 Humboldt Near Onion Mtn. 204 Comment
  HSC98563  Dicentra pauciflora Cara Witte 2008-6-13 729 Humboldt Forest Service Road 4N32. 2 miles west of intersection with Forest Service Road 5N04. 1514 Comment
  SEINET7293094 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1918-1 5014 Humboldt White North Valley 305 Comment
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Apr 22 2016
  JEPS5680  Dichelostemma X venustum Milo S. Baker 1923-7-20 29 Humboldt Head of South Fork of Yager Creek Comment
  UC1198182  Dichelostemma X venustum Joseph P. Tracy 1927-5-21 8066 Humboldt s end Humboldt Bay; Salmon Creek Valley 15 Comment
  UC1198165  Dichelostemma capitatum Joseph P. Tracy 1922-4-30 5995 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  SEINET12058487  Dichelostemma capitatum F. H. Utech 1988-5-23 88 -291 Humboldt 1.5 mi N of Bridgeville on Road from Bridgeville to Kneeland, along Brown Creek 350 Comment
  UC1198187  Dichelostemma ida-maia Joseph P. Tracy 1912-7-26 3860 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  SEINET3885674  Dichelostemma pulchellum James P. Smith 1973-5-5 6485 Humboldt Roadside and streamside along Cook and Green Pass.; 0 Comment
  UC562293  Dichondra donelliana Joseph P. Tracy 1926-8-12 7764 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC62775  Digitalis purpurea M. Dean Griswold Jr. 1979-5-30 108 Humboldt By Cypress Hall, HSU campus Comment
  UC1197658  Disporum hookeri Joseph P. Tracy 1937-7-2 15409 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  UC535769  Disporum hookeri Eleanor Armstrong 1934-5-27 Humboldt Richardson Grove Comment
  IRVC2496  Disporum smithii R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  HSC2192  Distichlis spicata J. P. Tracy 1933-8-22 12989 Humboldt Mouth of Eel River. 3 Comment
  HSC82972  Distichlis spicata A. L. Eicher 1986-7-7 Humboldt Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  UC34066  Distichlis spicata J. P. Tracy 1900-7-4 869 Humboldt Samoa Comment
  HSC17907  Dodecatheon alpinum W. K. Parks Jul 1933 1374 Humboldt S Fork Mtn. Comment
  UC1198620  Dodecatheon hendersonii Joseph P. Tracy 1922-5-14 6046 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC154178  Dodecatheon hendersonii Mrs. M. H. Manning 1902-3 Humboldt near Hupa; near Hupa Comment
  HSC82394  Dodecatheon jeffreyi Thomas W. Nelson 1979-7-11 5007 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC28972  Downingia elegans Chesnut and Drew Aug 1888 Humboldt Comment
  UC34954  Downingia elegans Chesnut and Drew 1888-7-10 Humboldt near Jarnigan's Comment
  UC168983  Downingia willamettensis Joseph P. Tracy 1911-6-30 3271 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC76190  Drymocallis glandulosa var. reflexa Overton, Butler 1979-7-24 9773 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC1198689  Drymocallis glandulosa var. wrangelliana Joseph P. Tracy 1933-5-14 12172 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC154498  Drymocallis glandulosa var. wrangelliana Mrs. M. H. Manning 1900-1 Humboldt Hoopa Comment
  UC12540  Drymocallis glandulosa var. wrangelliana C. C. Marshall 1888-1 Humboldt Comment
  CAS-BOT-BC70873  Dryopteris arguta Doris K. Kildale 1928-2-19 4264 Humboldt between Little River & Moonstone Beach Comment
  RSA46701  Dryopteris arguta Doris K. Kildale 1928-2-19 4264 Humboldt Little River near Trindad Comment
  UCD136407  Dryopteris arguta K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC26394  Dudleya farinosa T. O. Osborne 1970-9-16 29 Humboldt Trinidad Bay, Prisoner Rock Comment
  UC1103264  Echinochloa crus-galli Joseph P. Tracy 1934-8-14 13569 Humboldt Alton; Northern Coast Region 30 Comment
  UC183454  Echinochloa crus-galli Joseph P. Tracy 1900-11-1 973 Humboldt Eureka; Northern Coast Region 0 Comment
  NY242008  Elatine rubella A. Tiehm 1987-8-3 11474 Humboldt Pine Forest Range, Onion Creek Reservoir northwest of Blue Lake and Duffer Peak at the north end of the range. 2151.9 Comment
Read comments
Feb 25 2012
  HSC102220  Eleocharis acicularis var. acicularis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1136 Humboldt Patterson Meadows 1555 Comment
  JEPS19330  Eleocharis bella Joseph P. Tracy 1935-7-27 14299 Humboldt McKay Prairie Trinity Summit 1584 Comment
  UC666918  Eleocharis macrostachya Joseph P. Tracy 1934-7-20 13464 Humboldt Big Lagoon, small farm on shore 3 Comment
  UC666880  Eleocharis pachycarpa H. E. Parks and Joseph P. Tracy 1931-6-7 9569 Humboldt Trinidad 60 Comment
  UC38216  Elymus X hansenii J. Burtt Davy 1899-6-19 5661 y Humboldt Hoopa Mt. North Coast Ranges Comment
  CAS-BOT-BC227347  Elymus elymoides Joseph P. Tracy 1930-7-16 8955 Humboldt South Fork Mountain; along summit near Blake Lookout 1706 Comment
  RSA10138  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain 1402 Comment
  UC1103207  Elymus glaucus J. P. Tracy 1901-6-16 1143 Humboldt Immediate vicinity of Eureka 0 Comment
  UCD61827  Elymus glaucus J. I. Mallory 1955-6-7 113 Humboldt North end of Luke Prairie. California Forest and Range Experiment Station. 350 Comment
  UCD62255  Elymus glaucus P. B. Kennedy 1923-8-5 Humboldt West Fork of Eel River between Phillipsville and Garberville. Comment
  UC526790  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  HSC63822  Elymus intermedius Dennis McKiver 1981-1-12 Humboldt 300 yds. SW of the Mad River Bridge on Hatchery Rd. in Blue Lake. Comment
  HSC102237  Elymus multisetus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1161 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  POM267994  Elymus trachycaulus subsp. trachycaulus D. D. Keck 1944-7-11 5491 Humboldt 3 miles northeast of Capetown. 152 Comment
  HSC54564  Epilobium brachycarpum Overton, Butler 1979-7-24 9583 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  UC505111  Epilobium brachycarpum Joseph P. Tracy 1932-5-22 10112 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC205233  Epilobium canum subsp. latifolium Joseph P. Tracy 1919-9-23 5288 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC53857  Epilobium ciliatum Griswold, Butler 1979-7-10 6328 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC54566  Epilobium ciliatum subsp. ciliatum Overton, Butler 1979-7-24 9586 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC74754  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-6 2398 Humboldt Near Humbug Creek 1256 Comment
  UC1197011  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1903-8-9 1934 Humboldt Immediate vicinity of Eureka 0 Comment
  UC146118  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1902-7-20 1752 Humboldt Immediate vicinity of Eureka 0 Comment
  UC161071  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1911-7-5 3323 Humboldt along creek near mouth (creek is tributary of Trinity River); Northern Coast Ranges, Willow Creek 304 Comment
  POM89782  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1919-9-18 5225 Humboldt Northern Coast Ranges: Trinity Summit 1890 Comment
  HSC102624  Epilobium hallianum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1611 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC56949  Epilobium minutum Overton, Butler 1979-7-23 9447 Humboldt Near Horse Mtn., close to the town of Willow Creek 1295 Comment
  JEPS109976  Epilobium oreganum Dean W. Taylor 2006-8-31 19633 Humboldt UNDERWOOD MOUNTAIN: meadowy opening in forest above the ''Hog Ranch'' site on the USGS map 883 Comment
  UC20060  Epilobium oreganum Chesnut and Drew 1888-7-28 Humboldt Grouse Creek; ; Grouse Creek, Humboldt Co. Comment
  HSC32543  Epilobium torreyi Thomas W. Nelson 1973-8-19 1117 Humboldt McKeown Ranch N of Dinsmore, floodplain of Mad River Comment
  UC725499  Epipactis gigantea A. A. Heller 1923-7-10 13790 Humboldt river between Scotia and Pepperwood; Eel River Comment
  CAS-BOT-BC58003  Equisetum Doris K. Kildale 1925-8-18 1253 Humboldt McKay's Prarie - Trinity Summit. 1524 Comment
  RSA239686  Equisetum laevigatum Larry E. DeBuhr 1973-4-23 990 Humboldt Richardson Grove Redwood State Park. Comment
  UC1239790  Equisetum laevigatum Joseph P. Tracy 1931-3-26 9292 Humboldt near Alton (river bar of Van Duzen River); Northern Coast Region 30 Comment
  UC667933  Equisetum telmateia subsp. braunii Joseph P. Tracy 1937-6-26 15361 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  HSC885  Equisetum telmateia subsp. braunii S. J. Hawks, D. E. Anderson 1965-5-18 80 Humboldt Luffenholtz Beach Comment
  MACF015290  Equisetum telmateia subsp. braunii Barbara Joe 1958-8-24 27239 Humboldt Garbervills Comment
  UC526938  Equisetum telmateia subsp. braunii Joseph P. Tracy 1934-6-28 13268 Humboldt by Salmon Creek Northern Coast Ranges 9 Comment
  POM161049  Eragrostis hypnoides Joseph P. Tracy 1920-8-15 5367 Humboldt Klamath River, at mouth of Bluff Creek 152 Comment
  CAS-BOT-BC291175  Erechtites glomeratus Alice Eastwood 1923-8-14 12319 Humboldt Samoa Comment
  CAS-BOT-BC299910  Erechtites minimus Doris K. Kildale 1925-7-28 1104 Humboldt On the Van Duzen River near Strong's Station Comment
  UC1198997  Eremocarpus setiger Joseph P. Tracy 1948-9-20 18219 Humboldt Hoopa Valley 121 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
  HSC54009  Eremogone congesta var. suffrutescens Griswold, Butler 1979-7-10 7134 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  CAS-BOT-BC131506  Ericameria arborescens H. E. McMinn 1922-8-3 476 Humboldt Mt. slope above S.F., Eel River Comment
  JEPS21500  Ericameria nauseosa var. speciosa Joseph P. Tracy 1929-8-18 8652 Humboldt Northern Coast Ranges, Larrabee Valley 701 Comment
  RSA697104  Erigeron biolettii J. Russell Bruff 1937-8-17 935 Humboldt Richardson Grove, bed of Eel River. Comment
  UCR51767  Erigeron bloomeri var. nudatus H. E. Parks 1937-1 24- 22 Humboldt North Coast, Spruce Cove, Trinidad 61 Comment
  SEINET200722  Erigeron foliosus Joseph P. Tracy 1913-6-10 4082 Humboldt Along Van Dugen River near Grizzly Gulch. Comment
  RSA21324  Erigeron foliosus var. confinis C. B. Wolf 1937-8-13 9218 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CDA14246  Erigeron foliosus var. foliosus P. Haggard 1998-6-12 s.n. Humboldt North Coast Ranges; Margin of Hwy 36, immed. W of Bridgeville along Van Duzen River. 0 Comment
  CDA4960  Erigeron glaucus G. D. Barbe, T. C. Fuller 1974-6-17 1834 Humboldt Lower Pacific Drive at Sail Court, west of the golf course, south of the sewer plant, Shelter Cove. 0 Comment
  CDA4961  Erigeron glaucus T. C. Fuller 1961-9-28 7053 Humboldt 1.5 miles south of Samoa. 0 Comment
  RSA54145  Erigeron inornatus var. inornatus H. M. Pollard 1946-8-28 s.n. Humboldt Near Summit of Orleans Mt. 1829 Comment
  UC175167  Erigeron maniopotamicus Joseph P. Tracy 1908-6 2750 Humboldt nw slope Buck Mountain 762 Comment
  POM187853  Erigeron philadelphicus Marcus E. Jones 1931-7-12 29146 Humboldt Alton. Comment
  CAS-BOT-BC214583  Erigeron philadelphicus Doris K. Kildale 1926-5-31 2023 Humboldt Miranda on South Fork of Eel River Comment
  UC581735  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1935-5-30 13920 Humboldt near Willow Creek; Trinity River Valley 152 Comment
  UCD132041  Erigeron philadelphicus var. philadelphicus P. B. Kennedy 1929-6-12 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC224259  Eriodictyon californicum P. C. Everett; E. K. Balls 1959-10-24 23953 Humboldt 2.8 mi. sw. from Siskiyou-Humboldt Co. line, Somesbar to Orleans 198 Comment
  HSC13527  Eriodictyon californicum P. J. Zinke 1950-10-9 182 Humboldt E slope of King Peak 1159 Comment
  RSA134150  Eriodictyon californicum Percy C. Everett, E. K. Balls 1959-10-24 23953 Humboldt 2.8 miles southwest from Siskiyou-Humboldt Co. line, Somesbar to Orleans. 198 Comment
  JEPS57408  Eriogonum compositum var. compositum L. R. Heckard with T. I. Chuang 1968-7-5 1989 Humboldt 4 1/2 mi n along Mail Ridge road Harris Road (e of Garberville) Comment
  CAS-BOT-BC259158  Eriogonum latifolium Milo S. Baker 1927-8-16 2453 a Humboldt Samoa Comment
  HSC26237  Eriogonum latifolium J. P. Smith 1971-10-6 4979 Humboldt End of Murray Rd. in McKinleyville. Comment
  LA206934  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  LA206936  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  CAS-BOT-BC259160  Eriogonum latifolium H. N. Bolander 1866-1-1 6569 Humboldt Collected on State Survey. Shelter Cove Comment
  SD38696  Eriogonum latifolium Charlotte M. Hoak 1931-7-14 2102 Humboldt Sand dunes above Eureka Comment
  HSC17389  Eriogonum luteolum var. luteolum D. E. Anderson 1961-9-30 1857 Humboldt Along dry roadside Comment
  HSC55189  Eriogonum nudum G. L. Clifton, Griswold 1979-8-2 12253 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC99018  Eriogonum nudum var. nudum Cara Witte 2008-7-14 902 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC1198145  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1947-7-9 17866 Humboldt 3 mi ne, on Lord-Ellis Road at Mankins Ranch Blue Lake; Mankins Ranch 304 Comment
  CAS-BOT-BC267876  Eriogonum umbellatum Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC444001  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8347 Humboldt Along U.S. Forest Service Road 1 near White Rock Springs at milepost 7.6, about 7.8 air miles southwest of Salyer 1493 Comment
  SEINET245667  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8346 Humboldt Along U.S. Forest Service Road 1 northwest of Grouse Mountain at milepost 14.3, about 10.3 air miles southwest of Salyer 1372 Comment
  UC1198156  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8949 Humboldt near Blake Lookout (along summit of South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC97920  Eriogonum umbellatum var. umbellatum Cara Witte 2007-6-14 270 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  HSC73142  Eriophyllum lanatum M. A. Baker 1980-5-18 1332 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC301017  Eriophyllum lanatum var. achilleoides Mrs. G. Earle Kelly 1924-6-1 s.n. Humboldt Kneeland Prairie Comment
  UC1223126  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1944-7-3 17480 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC129577  Eriophyllum lanatum var. achilleoides Joseph Burtt Davy and Walter C. Blasdale 1899-6 5379 Humboldt near Harris Comment
  JEPS17991  Eriophyllum lanatum var. achilleoides George B. Rossbach 1955-6-10 533 Humboldt 2 mi no of Stephens Redwood Grove (Route 101 along s fork of Eel River, in redwood forest area); South fork of Eel River Comment
  UC165849  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 Humboldt w side of river near Willow Creek; North Coast Ranges, Trinity River 304 Comment
  UC53949  Eriophyllum lanatum var. lanceolatum Harley P. Chandler Jun 1901 1403 Humboldt Klamath River North Coast Ranges 243 Comment
  UC183565  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1912-7 3777 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC99491  Erysimum capitatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 150 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
  SEINET10970607  Erysimum capitatum Jones 1985-6-6 Jones 115 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, quercus Chrysolepis, quercus vaccinifolia habitat. Growing on rock wall 1143 Comment
  HSC74289  Erysimum capitatum var. capitatum M. A. Baker 1980-7-19 3013 Humboldt Near Bret Hole. 1814 Comment
  CAS-BOT-BC54909  Erysimum menziesii G. B. Rossbach 1955-6-10 596 Humboldt Depression in coastal dunes near Humboldt Bay lighthouse between Fairhaven and end of Sandy point off Eureka. Comment
  HSC49804  Erysimum menziesii R. York 1979-4-16 230 Humboldt Just E of Samoa drag strip. Comment
  HSC6784  Erysimum menziesii R. van Weemen Van Noord 1966-3-24 2 Humboldt N end of Samoa drag strip. 6 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
  HSC58172  Erysimum perenne G. L. Clifton, Terry Griswold 1979-8-2 12248 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC44396  Erythronium californicum Brad Klipfel 1975-5-24 629 Humboldt Horse Mtn. Comment
  UCD139632  Erythronium californicum Roman Gankin; W. R. Hildreth 1966-3-15 699 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  CAS-BOT-BC504306  Erythronium californicum Doris K. Kildale 1926-3-21 s.n. Humboldt Kneeland Prairie 762 Comment
  HSC45265  Erythronium californicum M. Alcasas 1978-6-3 114 Humboldt Titlow Hill Rd., 1.6 mi. from Hwy. 299 1479 Comment
  HSC65203  Erythronium californicum T. Jimerson, J. Pageau 1979-5-1 445 Humboldt On FS 6N34C, Orleans Ranger District, Orleans Comment
  HSC15487  Erythronium citrinum var. citrinum R. A. Rasp 1964-4-5 29 Humboldt 7 mi. past Hoopa on Willow Creek Rd. Comment
  JEPS503  Erythronium grandiflorum Joseph P. Tracy 1933-7-16 12774 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  SEINET3992480  Erythronium grandiflorum var. pallidum Unknown 1933-7-16 12774 Humboldt South Fork Mountain, near McKay Camp 1676 Comment
  HSC99352  Erythronium oregonum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 1 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS61873  Erythronium revolutum Joseph P. Tracy 1918-5-4 Humboldt Eureka Comment
  JEPS20487  Euchiton gymnocephalus Joseph P. Tracy 1936-3-22 14784 Humboldt 4 mi se Korbel (near Angels Ranch); North Coast Ranges 304 Comment
  UC1607850  Euchiton gymnocephalus Parks and Tracy 1932-7-30 1133 Humboldt Trinidad; Camp Twenty One 182 Comment
  UC562615  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UCD132297  Euchiton sphaericus W. L. Jepson 1936-8-15 17898 Humboldt Carlotta, 2 miles east of. Comment
  HSC100665  Eunanus douglasii Carl C. Marshall Apr 1887 377 Humboldt Hoopa Valley, dry roadsides. Comment
  CAS-BOT-BC206913  Euonymus occidentalis C. Hart Merriam 1922-7-5 s.n. Humboldt Carson Woods, Fortuna Comment
  HSC37659  Euonymus occidentalis Jan Fryling 1976-9-28 Humboldt Cutten area of the city of Eureka. Comment
  JEPS51876  Euphorbia crenulata Lincoln Constance 1934-5-24 646 Humboldt Bull Creek Region; South Fork Eel River 121 Comment
  HSC28197  Euphorbia helioscopia Thomas W. Nelson 1973-4-25 799 Humboldt On H.S.U. campus, beside Forestry Dept. Greenhouse. Comment
  HSC100483  Euphorbia leptocera Carl C. Marshall Apr 1887 104 Humboldt Humboldt Bay. Comment
  UC302052  Euphorbia peplus Joseph P. Tracy 1926-5-15 7473 Humboldt Eureka; North Coast Ranges 0 Comment
  HSC66404  Eurybia radulina Ruby Van Deventer 1950-8-15 Humboldt Myers Falt 61 Comment
  SEINET4206010  Fallopia convolvulus Chesnut, Drew 1888-7-25 s.n. Humboldt Grouse Creek Comment
  UCD98888  Fallopia convolvulus Joseph P. Tracy 1947-8-10 17881 Humboldt location unknown. 30 Comment
  UCD98910  Fallopia sachalinensis H. E. Parks; S. T. Parks 1941-8-1 s.n. Humboldt Along highway and Orick 50 miles south. Mouth of Elk River, Humboldt Bay, near sea level. 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
  HSC71744  Festuca idahoensis M. A. Baker 1980-6-26 2426 Humboldt Near Sims Creek 610 Comment
  HSC31224  Festuca occidentalis D. E. Anderson 1972-6-20 5723 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  RSA10112  Festuca occidentalis Joseph P. Tracy 1932-7-17 10655 Humboldt Near Corral Prairie, Trinity summit, Klamath mountains. 1524 Comment
  HSC65121  Festuca rubra J. P. Smith 1973-5-26 6880 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1145205  Festuca subulata Joseph P. Tracy 1937-7-25 15541 Humboldt head of Little Hors-Linto Creek Trinity Summit, Little Hors-Linto Creek 1371 Comment
  SEINET10559491  Festuca subulata Joseph P. Tracy 1935-7-27 Tracy 14295 Humboldt Moist stream bank. Trinity summit. Open places at McKay Prairie. 1585 Comment
  UC1152012  Festuca subuliflora A. H. Murphy 1951-5-15 31 Humboldt 0.5 mi s McCann (on Fruitland Road) Comment
  RSA168825  Filago gallica Joseph P. Tracy 1942-5-16 17338 Humboldt On river bar, Eel River, vicinity of Garberville Comment
  HSC18634  Fragaria vesca Francis Winter 1960-4-23 Humboldt 1.0 mi. N of Dollar Ranch on Korbel-Maple Creek Rd. 229 Comment
  HSC18636  Fragaria vesca S. S. Stutz 1963-3-24 14 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC70357  Fragaria vesca M. A. Baker 1980-6-7 1866 Humboldt Near Ammon Creek 732 Comment
  UCSB22387  Fragaria vesca Jensen, Karen 1965-4-15 Humboldt 0.2 km west of Highway 101 near Miranda. 91 Comment
  HSC18413  Frangula purshiana J. W. Johnson 1962-4-19 1254 Humboldt Arcata, woods of the Miller Farm, Samoa Peninsula Comment
  UCD113176  Frangula purshiana W. F. Murison 1965-9-30 s.n. Humboldt Kneeland. 822 Comment
  CAS-BOT-BC217694  Fraxinus latifolia Joseph P. Tracy 1928-4-22 8414 Humboldt Willow Creek, Trinity River Valley 152 Comment
  HSC16198  Fraxinus latifolia C. B. Wolf 1927-8-30 1246 Humboldt 3 mi. S of Thorn along old coast road Comment
  HSC15539  Fritillaria affinis D. E. Anderson 1962-5-1 2189 Humboldt Junction of Redwood Creek Rd. and rd. to Hoopa Comment
  HSC82043  Fritillaria affinis Thomas W. Nelson, James Nelson 1980-6-10 5439 Humboldt Along branch rd. off Swayback Ridge 4-wheel drive rd. 200 yds from junction 1433 Comment
  HSC100105  Fumaria capreolata J. P. Smith 2010-4-7 12724 Humboldt Along Fischer Rd., S of junction with School Rd. in McKinleyville 8 Comment
  HSC71493  Galium bolanderi M. A. Baker 1980-6-7 1797 Humboldt Near Brush Mtn. 1128 Comment
  UC602509  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  JEPS25700  Galium bolanderi P. C. Hutchison 1961-5-22 2031 Humboldt high bluffs along road ca. 5.4 mi n Orleans (on US hwy 299, e side of river); Klamath River Comment
  JEPS52857  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-8 3861 Humboldt 2.3 mi s Weott; Avenue of the Giants Comment
  HSC38079  Galium muricatum Thomas W. Nelson, James Nelson 1976-5-30 2628 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC36248  Galium muricatum Thomas W. Nelson, Jane P. Nelson 1976-2-21 2243 Humboldt Beside the Hoopa-Redwood Valley Rd., 2.5 mi. W of Hoopa Comment
  RSA67142  Galium muricatum F. W. Peirson 1932-7-7 10263 Humboldt Willow Creek. A few miles above town of that name. Comment
  UC180221  Galium parisiense Joseph P. Tracy 1914-7-4 4520 Humboldt 5 mi e Korbel; Northern Coast Ranges, Angels Ranch 762 Comment
  UC416654  Galium parisiense Harley P. Chandler June, 1901 1305 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation 152 Comment
  SEINET11117326  Galium parisiense Unknown 1913-1 4083 Humboldt Rogers ranch, below Bridgeville on Van Duzen River, on dry rocky slopes. Altitude 500 ft. Comment
  HSC70963  Galium porrigens Gail Newton 1980-7-15 1585 Humboldt Near Sims Mtn. 1311 Comment
  UC1196091  Galium porrigens Joseph P. Tracy 1898-7-13 259 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UC602542  Galium trifidum Joseph P. Tracy 1927-7-17 8273 Humboldt lower w foothills of Chaparral Mountain; North Coast Ranges, Three Cabins 457 Comment
  HSC57191  Galium triflorum Griswold, Butler 1979-7-11 6908 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC57217  Galium triflorum Griswold, Butler 1979-7-12 7289 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC41593  Galium triflorum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3597 Humboldt N of pond above Alder Springs Comment
  HSC78975  Gamochaeta ustulata L. P. Janeway, Paul Wilson 1984-5-25 830 Humboldt On the N Spit of Humboldt Bay; on BLM lands near the Coast Guard Station 5 Comment
  HSC90249  Gamochaeta ustulata Jean Hanson 1980-5-24 59 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  RSA46655  Garrya buxifolia Doris K. Kildale 1937-9-14 15361 Humboldt Grouse Mountain Comment
  HSC67592  Garrya elliptica J. P. Smith 1971-10-6 4961 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC91891  Garrya elliptica E. Mackey 1986-7-21 Humboldt Patrick's Point State Park; Wedding Rock Trail Comment
  RSA506993  Garrya elliptica H. E. Parks 1934-02 4773 Humboldt On the heads at Spruce Cove, Trinidad. Comment
  UC1585366  Garrya elliptica R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 19 Humboldt w of Eureka (0.5 km s of Hwy 255, on New Navy Base Rd on North Split of Samoa Peninsula); Samoa Peninsula 10 Comment
  SEINET12137511  Garrya elliptica M. S. Taylor 1982-1 5181 Humboldt Samoa, under bridge, ca 1 mi NW of Eureka Comment
  HSC35698  Garrya fremontii Thomas W. Nelson, B. Reinhardt 1975-7-30 2105 Humboldt along Rd. out to Whiting Ridge and at Last Chance Ridge Comment
  HSC99050  Garrya fremontii Cara Witte 2008-6-18 750 Humboldt Horse Mountain Botanical Area. Approximately 1 mile east of junction 6N36 and 6N36A. 1394 Comment
  RSA89597  Garrya fremontii M. F. Moseley 1952-8-21 344 Humboldt Along western valley wall of Willow Creek, mostly within Hoopa Indian Reservation, upstream from Willow Creek Village. Comment
  UC1225767  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC71725  Gastridium phleoides M. A. Baker 1980-6-26 2462 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC282614  Gastridium phleoides Harley P. Chandler 1901-6-1 1506 Humboldt Klamath River 426 Comment
  UC34067  Gastridium ventricosum J. P. Tracy 1900-9-9 951 Humboldt bar of Yager Creek near Hydesville; bar of Yager Creek 60 Comment
  HSC73068  Gaultheria ovatifolia M. A. Baker 1980-6-16 1953 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC58906  Gaultheria shallon Carl B. Wolf 1930-10-30 1043 Humboldt Old Coast Road, 4 miles south of Thorn 304 Comment
  HSC22527  Gaultheria shallon Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  HSC7811  Gaultheria shallon J. Pursell 1964-10-18 10182 Humboldt Hwy. 299, 15 mi. N of Blue Lake Comment
  RSA18144  Gaultheria shallon C. B. Wolf 1927-8-22 804 Humboldt 1 mile south of Orick. Comment
  UC1541491  Gaultheria shallon Harold E. Parks March 1934 4832 Humboldt Trinidad, Spruce Cove Spruce Cove; Trinidad, Spruce Cove Comment
  UC21946  Gaultheria shallon unknown 1894-8-6 Humboldt Eureka Comment
  UC484078  Gaultheria shallon Carl B. Wolf 1930-10-30 Humboldt 4 mi s of Thorn (Old Coast Road); Old Coast Road 304 Comment
  UCSB7320  Gaultheria shallon Phillips, Priscilla 1958-6-9 Humboldt Bishop Pine Lodge, 2 mi. N of Trinidad Comment
  CDA38830  Gaultheria shallon T. R. Haig 1960-6-15 4578 Humboldt 8 miles north of Trinidad. 0 Comment
  UC505119  Gayophytum heterozygum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9050 1/2 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC1196963  Gayophytum humile Joseph P. Tracy 1949-6-25 18593 Humboldt Box Camp Trinity Summit 1463 Comment
  POM214929  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  HSC55166  Gayophytum ramosissimum Gilbert Muth 1979-8-1 12157 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  JEPS47045  Gentiana affinis var. ovata W. L. Jepson 1921-8-11 9411 Humboldt Big Lagoon, Humboldt coast Big Lagoon Comment
  HSC96490  Gentiana sceptrum Gordon Leppig 1997-8-3 635 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  OBI14114  Gentiana sceptrum Carl B. Wolf 1937-9-12 9328 Humboldt Big Lagoon, S side along Redwood hwy 6 Comment
  RSA21018  Gentiana sceptrum Carl B. Wolf 1937-9-12 9328 Humboldt Big Lagoon, south side along Redwood Highway. 6 Comment
  SBBG58582  Gentiana sceptrum H. E. Parks -Jul-1931 1052 Humboldt Bishop Pine Lodge, Trinidad 76 Comment
  UC1197396  Geranium carolinianum Joseph P. Tracy 1929-5-5 8558 Humboldt Miranda, along South Fork of Eel River Northern Coast Ranges, South Fork of Eel River 121 Comment
  JEPS61425  Geranium dissectum Mrs. M. H. Manning Jun 1902 Humboldt Hupa Comment
  UC165812  Geranium dissectum Joseph P. Tracy 1909-7-4 3006 Humboldt Eureka Northern Coast Region 0 Comment
  UC169886  Geranium dissectum Harley P. Chandler Jun 1901 1420 Humboldt Klamath River North Coast Ranges Comment
  HSC90422  Geranium pusillum Jean Hanson 1980-4-12 42 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island Comment
  UC492183  Geum macrophyllum var. perincisum Joseph P. Tracy 1932-7-14 10540 Humboldt at Corral Prairie, Klamath Mountains, Trinity Summit Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  UC1222733  Gilia capitata subsp. capitata Joseph P. Tracy 1950-6-15 18789 Humboldt 7 mi n Harris (Mail Ridge); n of Harris, Mail Ridge Comment
  JEPS69517  Gilia capitata subsp. capitata Lincoln Constance 1934-5-23 621 Humboldt sw slope upper end Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, Look Prairie 365 Comment
  UC1197926  Gilia capitata subsp. pacifica Joseph P. Tracy 1930-5-25 8725 Humboldt Bridgeville 198 Comment
  UC52485  Gilia capitata subsp. pacifica Joseph Burtt Davy and Walter C. Blasdale 1899-5 5561 Humboldt Alton Alton (Old river bluffs, North-Western California) Comment
  UCR202414  Gilia capitata subsp. pacifica Peter L. Morrell, Nicole Deligans 1993-8-14 317 Humboldt North Coast, about 1 mile south of McNutt-Mattole Rd., 5.2 miles south of Devil's Gate, 8.4 miles south of Cape Mendocino 30 Comment
  CHSC68788  Gilia millefoliata Vernon Oswald 1997-6-5 8543 Humboldt North Spit of Humboldt Bay 3.7 mi south of Hwy. 255, Orvil Wilson Memorial Off-road Vehicle Park opposite the junction of New Navy Base Rd. and Lincoln Ave. 6 Comment
  HSC16984  Gilia millefoliata R. J. Vernimen 1963-5-11 45 Humboldt Clam Beach Lagoons, 10 mi. N of Arcata Comment
  HSC90478  Gilia millefoliata Jean Hanson 1981-5-10 131 Humboldt Indian Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS16254 Image available Gilia millefoliata J. P. Tracy 1903-6-12 1921 Humboldt immediate vicinity Eureka; ; Eureka, Humboldt Co. 0 Comment
  HSC16986  Gilia tricolor J. E. Lankila 1962-5-6 26 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  SEINET10464622  Githopsis specularioides Tracy 1913-6-19 TRACY 4207 Humboldt Dinsmore's Ranch; in valley of Van Duzen River opposite Buck Mountain 762 Comment
  RSA246749  Glehnia littoralis subsp. leiocarpa R. F. Thorne, P. Everett 1965-8-9 35304 Humboldt Big Lagoon 3 Comment
  SJSU2516  Glehnia littoralis subsp. leiocarpa H. L. Buckalew 1962-6-18 Humboldt Gold Beach at ocean near Prairie Cr Redwoods State Park Comment
  UC1197364  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1938-7-15 16077 Humboldt mouth of Eel River 6 Comment
  HSC10051  Glyceria declinata B. D. Rogers 1964-4-27 25 Humboldt 0.5 mi. W of Arcata on Samoa Rd. Comment
  HSC38427  Glyceria elata D. E. Anderson, J. P. Smith 1971-6-14 - 1049 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  HSC58659  Glyceria elata G. L. Clifton 1979-7-31 11866 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC74756  Glyceria elata Gail Newton 1981-8-6 2402 Humboldt Near Humbug Creek 1256 Comment
  SEINET200359 Image available Glyceria elata J. P. Tracy 1935-7-25 114251 Humboldt Trinity Summit lower end of Brett Hole 1585 Comment
  UC39035  Glyceria elata Harley P. Chandler Jun 1901 1526 Humboldt Klamath River; North Coast Ranges 426 Comment
  CAS-BOT-BC303846  Gnaphalium Alice Eastwood 1923-8-14 12305 Humboldt Samoa Comment
  CAS-BOT-BC302539  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-7-1 24026 Humboldt Spruce Cove, Trinidad Comment
  HSC39053  Gnaphalium palustre Linda M. Barker 1976-7-5 1639 Humboldt 3 mi. W of Arcata, coastal forest and dunes. Comment
  HSC98114  Gnaphalium palustre Cara Witte 2007-6-21 338 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  SEINET11836330  Gnaphalium palustre H. E. Parks, Parks, S. T. 1937-1 24080 Humboldt Spruce Cove, Trinidad Comment
  SD39800  Gnaphalium purpureum Edith A. Purer 1932-7-30 4676 Humboldt South of Orick Comment
  HSC36646  Goodyera oblongifolia J. D. Ackerman 1975-9-15 742 Humboldt Arcata, behind Fern Ln. E of Humboldt State University Comment
  UC582587  Gratiola ebracteata Joseph P. Tracy 1935-5-25 13840 Humboldt Fort Seward 106 Comment
  RSA44415  Grindelia camporum var. camporum H. M. Pollard 1947-8-6 s.n. Humboldt Roadside W of Orleans. Comment
  CAS-BOT-BC304735  Grindelia hirsutula L. R. Abrams 1927-8-31 12057 Humboldt Along highway between Eureka and Arcata Comment
  CAS-BOT-BC304748  Grindelia hirsutula A. A. Heller 1923-7-7 13764 Humboldt Along the Redwood highway, near the Eel River bridge south of Garberville Comment
  CAS-BOT-BC304758  Grindelia hirsutula Carl B. Wolf 1937-9-9 9305 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  HSC79173  Grindelia hirsutula C. K. Geldin-Meyers 1985-8-5 102 Humboldt W of Honeydew along Mattole Rd. 610 Comment
  JEPS25801  Grindelia hirsutula L. R. Heckard 1960-8-31 1220 Humboldt s end Dry Lagoon Beach State Park Comment
  JEPS81942  Grindelia hirsutula Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8967 Humboldt 9.5 mi by road nw Petrolia (s of Cape Mendocino, in coastal scrub just back of beach) Comment
  UC419067  Grindelia hirsutula H. E. and S. T. Parks 1930-9-14 773 Humboldt n shore Big Lagoon Comment
  UC665533  Grindelia hirsutula H. E. Parks Aug 1941 24190 Humboldt Big Lagoon Comment
  SEINET11843448  Grindelia stricta subsp. venulosa F. H. Utech 1986-1 86 -410 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  POM318612  Grindelia stricta var. stricta Patricia Wilder 1968-8-21 4375 Humboldt Big Lagoon Park, just west of U.S. 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 15 Comment
  RSA46482  Grindelia stricta var. stricta Doris K. Kildale 1925-7-10 944 Humboldt Dyerville. Comment
  RSA249328  Hackelia bella D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  JEPS55579  Hackelia californica Joseph P. Tracy 1932-7-12 10428 Humboldt at Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  HSC48108  Hackelia micrantha Brad Klipfel 1973-7-15 203 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS67933  Hackelia micrantha W. L. Jepson 1902-7-16 2041 Humboldt Trinity Summit 2133 Comment
  UC525578  Hackelia micrantha Joseph P. Tracy 1932-7-17 10691 Humboldt head of Devil's Hole; Klamath Mountains, Trinity Summit 1828 Comment
  RSA47164  Hastingsia serpentinicola Doris K. Kildale 1927-7-17 3771 Humboldt Bug Creek, Chaparral Mountain Comment
  UC450223  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-23 5287 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  CAS-BOT-BC306865  Helenium bolanderi Doris K. Kildale 1929-8-5 8773 Humboldt Big Lagoon Comment
  HSC49372  Hemitomes congestum T. Jimerson, J. Pageau 1979-6-15 581 Humboldt West of FS 11N21, on the boundary between Sections 27 and 28. 762 Comment
  POM160904  Hemizonia clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt Trinity River Valley, near the South Fork. Northern Coast Ranges. 305 Comment
  CDA30696  Hemizonia congesta M. K. Beyers, I. Shepardson 2009-9-13 248 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  UC1199372  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1934-7-9 13343 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC309991  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1937-7-19 15456 Humboldt Buck Mountain, lower foothills of its northwest slope 914 Comment
  CAS-BOT-BC310002  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-23 4805 Humboldt Little Van Duzen River Comment
  UC249804  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1923-6-20 6338 Humboldt 4 mi n Garberville; Northern Coast Ranges 121 Comment
  UC249806  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1923-7-4 6529 Humboldt Valley of South Yeager Creek Northern Coast Ranges, Valley of South Yeager Creek 762 Comment
  UC495621  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1932-8-21 10364 Humboldt Chaparral Mt., Three Cabins 457 Comment
  HSC74295  Heracleum maximum M. A. Baker 1980-7-22 3124 Humboldt Near Grogan Hole. 1676 Comment
  HSC76406  Heracleum maximum Denis Kearns 1981-7-23 428 Humboldt Near Whiteys Peak. 1524 Comment
  SEINET5782099 Image available Heterotheca oregona S. K. Harris 1938-8-24 Humboldt Eel River, near Fernbridge Comment
  RSA507772  Heterotheca oregona var. rudis J. C. Semple, S. Heard 1986-8-18 8529 Humboldt Near Myer's Flat; S fork Eel River at US 101. Comment
  UC581757  Heterotheca oregona var. rudis Joseph P. Tracy 1933-10-15 13097 1/2 Humboldt Miranda, along South Fork of Eel River South Fork of Eel River 121 Comment
  HSC8624  Heuchera micrantha Jack Rockwell 1962-4-29 34 Humboldt S Bank of Van Duzen River, E of Hwy. 101 9 Comment
  HSC56128  Heuchera rubescens G. L. Clifton, Griswold 1979-8-1 11931 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC98116  Hieracium albiflorum Cara Witte 2007-6-27 371 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  RSA12437  Hieracium albiflorum C. B. Wolf 1934-7-2 5856 Humboldt 2 miles from Bald Mt. on road to Korbel. 762 Comment
  CDA38204  Hippuris vulgaris E. C. Whitney 1962-7-23 s.n. Humboldt Pepperwood; R. Wallen property. 0 Comment
  CHSC2150  Holcus lanatus M. Anthony 1960-5-1 Humboldt Comment
  HSC70991  Holodiscus discolor Gail Newton 1980-7-15 1576 Humboldt Near Sims Mtn. 1311 Comment
  HSC99588  Holodiscus discolor K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 253 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  LA83708  Holodiscus discolor O. H. Kappler; 1946-7-24 1372 Humboldt Humboldt Bay, close to beach Comment
  HSC89903  Hordeum brachyantherum Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  CHSC96732  Hordeum murinum subsp. glaucum Gordon Leppig 1999-4-28 1127 Humboldt Arcata Bottoms. North of Lamphere Rd. UTM zone 10, 4529N, 406E. 1 Comment
  CAS-BOT-BC536629  Horkelia californica Paul F. Covel 1937-7-13 800 Humboldt Cape Fortuna Comment
  JEPS44551  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  UC1198720  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1912-7-31 3935 Humboldt near summit (Buck Mountain); Northern Coast Ranges 1676 Comment
  HSC96225  Horkelia tridentata var. flavescens Eric Schori, Kazuyuki Ishimaru 2005-6-24 15 Humboldt Titlow Hill Rd. S of Hwy. 299, Buck Flat 1595 Comment
  HSC98966  Hosackia oblongifolia var. oblongifolia Cara Witte 2007-6-12 239 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1360 Comment
  JEPS1633  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  HSC48869  Hydrophyllum occidentale Brad Klipfel 1973-6-10 51 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC96244  Hydrophyllum occidentale April A. Allard, Gregory O'Connell 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF 1 1402 Comment
  UC24091  Hydrophyllum tenuipes W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  UC24110  Hydrophyllum tenuipes Joseph P. Tracy May 1901 1263 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  UC1239761  Hydrophyllum tenuipes Joseph P. Tracy 1933-6-11 12558 Humboldt Holmes Flat 60 Comment
  SEINET10720053  Hypericum anagalloides Lincoln Constance 1934-6-25 Constance 922 Humboldt Bull Creek Region. Engelwood, 4 miles N of Dyerville and north of the boundary of Humboldt Redeood Park on Redwood Highway. Comment
  HSC75374  Hypericum perforatum J. O. Sawyer, M. A. Ericksen 1980-7-7 3576 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  UC1122120  Hypericum perforatum H. L. Person 1932-7-16 Humboldt Korbel Eureka Quad., Korbel 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
  UC1198401  Hypericum perforatum Joseph P. Tracy 1933-11-12 13117 Humboldt along S. Fork Eel R. Miranda; S. Fork Eel R., Miranda 121 Comment
  HSC98532  Hypericum perforatum Cara Witte 2007-7-3 402 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  HSC39569  Hypochaeris glabra D. E. Anderson, J. P. Smith 1971-6-18 1074 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  UC166804  Hypochaeris radicata J. P. Tracy 1909-7-4 3007 Humboldt immediate vicinity Eureka 0 Comment
  UCR48600  Hypochaeris radicata R. D. Goeden, Don W. Ricker 1987-9-2 870902- 11 Humboldt Loleta, along Cannibal Road 8 Comment
  HSC35755  Iliamna latibracteata Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1999 Humboldt Bald Hills Rd., just W of French Camp. Comment
  UC1173717 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
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Feb 27 2012
  UC630469 Image available Iliamna latibracteata H. E. Parks, S. T. Parks June, 1935 5593 Humboldt East side of Prairie Creek, North of Orick. Comment
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Feb 27 2012
  CHSC24762  Iris G. Strang 1976-4-10 19 Humboldt N side of Highway 36 in Bridgeville. 1219 Comment
  SEINET4170666  Iris Unknown 1942-5-12 Humboldt Klamath River 2 mi.'s N of Orleans Comment
  UCR138875  Iris douglasiana J. Marshall, J. Savage, L. Allison 1997-3-15 3 Humboldt Hwy 36, 0.5 mi west of Bridgeville 183 Comment
  HSC13853  Iris douglasiana J. C. Reppas 1963-3-16 1 Humboldt 820 Fickle Hill Rd. Comment
  UC667112  Iris douglasiana Joseph P. Tracy 1935-6-23 14001 Humboldt e of Orick (Bald Hills Road) 609 Comment
  UCSB879  Iris douglasiana Phillips, Priscilla 1958-6-7 Humboldt At entrance to Big Lagoon Park; North of Trinidad Comment
  JEPS86127  Iris macrosiphon Wayne Roderick 1966-5-5 Humboldt ca 5 mi n Bridgeville 609 Comment
  RSA21085  Iris macrosiphon Carl B. Wolf 1937-6-19 8913 Humboldt North Coast Range, 7.2 mi. above Bridgeville on grade to Dinsmores. 457 Comment
  BLMAR624  Iris purdyi Jennifer Wheeler 2011-6-1 624 Humboldt Lacks Creek, Bair rd near pickle springs 609 Comment
  HSC45309  Iris tenax subsp. klamathensis R. York 1978-5-11 167 Humboldt Along logging road 5 mi. N of Orleans 610 Comment
  HSC45311  Iris tenax subsp. klamathensis R. York 1978-5-11 165 Humboldt Along logging road above Orleans 640 Comment
  UC14924  Iris tenuissima Harley P. Chandler Jun 1901 1529 Humboldt Klamath River; North Coast Ranges 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
  SEINET11261291  Jaumea carnosa C. C. Harris, S. K. Harris 1939-8-26 994 Humboldt South shore of Humboldt Bay.; 0 Comment
  CAS-BOT-BC340153  Jaumea carnosa C. C. Harris; S. K. Harris 1939-8-26 s.n. Humboldt South shore of Humboldt Bay Comment
  RSA181881  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt Mouth of Eel River. 3 Comment
  HSC13983  Juncus balticus subsp. ater S. R. Johnson 1965-5-2 52 Humboldt 1 mi. N of Luffenholtz Beach Comment
  UC726303  Juncus breweri A. A. Heller 1929-8-4 14996 Humboldt Little River Comment
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Dec 13 2006
  HSC13996  Juncus bufonius H. E. Parks Jun 1934 5273 Humboldt Spruce Cove, Trinidad Comment
  HSC91873  Juncus bufonius E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  RSA168858  Juncus bufonius Joseph P. Tracy 1927-6-19 8197 Humboldt Big Lagoon. Comment
  UC1152112  Juncus bufonius Joseph P. Tracy 1927-6-19 8197 Humboldt Big Lagoon Comment
  UCD141362  Juncus bufonius Linda M. Barker 1976-6-22 1619 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA46737  Juncus bufonius Doris K. Kildale 1927-6-25 3571 Humboldt Between Horn and Shelter Cove. Comment
  HSC78252  Juncus bufonius var. bufonius L. P. Janeway, Paul Wilson 1984-5-25 820 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  HSC67957  Juncus confusus Steve Selva, J. P. Smith 1970-6-30 4110 Humboldt Comment
  UC249814  Juncus ensifolius Joseph P. Tracy 1924-7-4 6703 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  HSC57093  Juncus exiguus Walter Overton, Marvin Butler 1979-7-24 9815 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC58092  Juncus exiguus G. L. Clifton, Terry Griswold 1979-8-1 12005 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  RSA246769  Juncus falcatus subsp. sitchensis Robert F. Thorne, Percy C. Everett 1965-8-7 35175 Humboldt Big Lagoon. 2 Comment
  UC1103053  Juncus falcatus var. falcatus J. P. Tracy 1901-8-7 1273 Humboldt opposite Eureka (Sand Hills of Ocean Beach); Samoa Comment
  RSA246771  Juncus hesperius Robert F. Thorne, Percy C. Everett 1965-8-7 35187 Humboldt Big Lagoon. 2 Comment
  HSC63878  Juncus laccatus M. A. Baker 1979-6-29 957 Humboldt Hopkins Creek 750 Comment
  HSC14028  Juncus lescurii J. W. Johnson 1961-8-17 1057 Humboldt Arcata, Hollow 10, W.M. Lanphere Farm, Samoa Peninsula. Comment
  BLMAR324  Juncus patens Jennifer Wheeler 2002-8-9 324 Humboldt Lost Coast Headland, Guthrie creek edge along Guthrie creek trail 6 Comment
  HSC99032  Juncus patens Cara Witte 2008-7-14 896 Humboldt Cold Spring. 0.5 mi. S of Titlow Hill. 1440 Comment
  UC249816  Juncus phaeocephalus Joseph P. Tracy 1924-7-13 6733 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC419021  Juncus phaeocephalus H. E. Parks and J. P. Tracy 1924-8-3 Humboldt Big Lagoon Comment
  SEINET11788735  Juncus phaeocephalus J. P. Tracy 1934-1 13391 Humboldt Dow's Prairie 61 Comment
  CAS-BOT-BC235883  Keckiella corymbosa Joseph P. Tracy 1937-7-11 15422 Humboldt Vicinity of Garberville 121 Comment
  CAS-BOT-BC235885  Keckiella corymbosa Doris K. Kildale 1926-7-25 2433 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  JEPS11137  Keckiella corymbosa W. L. Jepson 1936-8-8 17864 Humboldt Hartsook; South Fork Eel River Comment
  CAS-BOT-BC237831  Keckiella lemmonii Marcus E. Jones 1931-7-16 28828 Humboldt Junction, East of Arcata Comment
  HSC98106  Kelloggia galioides Cara Witte 2007-6-27 375 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1/2 mile south of intersection with 5N04 and 4N32E. 1425 Comment
  UC1196076  Kelloggia galioides Joseph P. Tracy 1919-9-19 5257 Humboldt Trinity Summit; Northern Coast Ranges 1889 Comment
  UCSB30601  Kickxia elatine Edwards, David 1974-7-26 Humboldt Pond ca. 50 ft. NW of Grand Rd., ca. 1 1/2 mi.SW of Korbel and ca. 11/2 mi. NE of Mad River 18 Comment
  UC552226  Lactuca biennis Joseph P. Tracy 1935-7-21 14118 Humboldt mouth Bremer Creek (near Willow Creek); Trinity River Valley 152 Comment
  UC34491  Lagophylla ramosissima Chestnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  RSA18146  Lapsana communis C. B. Wolf 1927-8-22 801 Humboldt Big Lagoon. Comment
  SD50731  Lapsana communis Darley F. Howe 1959-8-14 Humboldt 86 miles west of Weaverville on Highway 289. 305 Comment
  CAS-BOT-BC337992  Lasthenia californica Joseph P. Tracy 1932-6-26 10265 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC337994  Lasthenia californica Doris K. Kildale 1926-5-9 1992 Humboldt Kneeland Prairie at rock pile 853 Comment
  UC30471  Lasthenia californica subsp. macrantha Bolander Humboldt Comment
  UC582759  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  CAS-BOT-BC352932  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt Larrabee Creek, near Bosworth's 457 Comment
  UC1222399  Lathyrus glandulosus Joseph P. Tracy 1942-7-26 17298 Humboldt near Redwood House; Valley of South Yager Creek 609 Comment
  UC162794  Lathyrus glandulosus Joseph P. Tracy 1906-6-10 2474 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA406670  Lathyrus latifolius M. B. Dunkle 1934-8-18 4808 Humboldt Fortuna Comment
  HSC40951  Lathyrus littoralis Linda M. Barker 1976-6-1 1560 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC160918  Lathyrus littoralis Joseph P. Tracy 1909-7-18 3022 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC249527  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1922-5-29 6062 Humboldt South Yager Creek Valley Northern Coast Ranges 762 Comment
  HSC14753  Lathyrus palustris J. P. Tracy 1907-7-20 2593 Humboldt Near Samoa Comment
  UC709436  Lathyrus polyphyllus Joseph P. Tracy 1936-8-8 15128 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UCD106342  Lathyrus polyphyllus A. Murphy 1951-5-15 s.n. Humboldt Half mile S. of South Fork on McCann Road. Comment
  RSA64818  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19090 Humboldt Ca 10 miles W of Willow Creek, near Highway #299. Comment
  SEINET956148  Lathyrus polyphyllus Joseph P. Tracy 1923-1 6344 Humboldt Bald Mt. 914 Comment
  HSC14706  Lathyrus vestitus subsp. bolanderi H. E. Parks Jun 1931 1082 Humboldt Kneeland Comment
  HSC2129  Lathyrus vestitus subsp. bolanderi Frances Oldridge 1946-1 Humboldt Willow Creek Comment
  UC931759  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-8 19092 Humboldt 4 mi w Willow Creek town (near Willow Creek National Forest Camp) Comment
  JEPS13464  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  UCSC000838  Leontodon nudicaulis subsp. taraxacoides H. S. Reed 1941-7-26 s.n. Humboldt Common weed near Trinidad Trinidad Comment
  HSC91909  Leontodon saxatilis subsp. saxatilis E. Mackey 1986-10-7 Humboldt Patrick's Point State Park; near Penn Creek Campground Comment
  RSA226612  Lepidium campestre William J. Ferlatte, B. D. Rogers 1966-6-15 2109 Humboldt Larabee Valley. 762 Comment
  HSC100461  Lepidium menziesii Carl C. Marshall Jun 1887 464 Humboldt Harris and Garberville Rd. Comment
  CAS-BOT-BC12986  Lepidium virginicum Henry M. Pollard 1946-8-10 s.n. Humboldt South of Klamath River and east of Perch Creek. Orleans Region. Comment
  CAS-BOT-BC226527  Leptosiphon acicularis M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles N. of Garberville Comment
  HSC17097  Leptosiphon androsaceus William J. Ferlatte, B. D. Rogers 1966-6-15 2104 Humboldt Larabee Valley 762 Comment
  HSC71061  Leptosiphon bicolor Thomas W. Nelson, Jane P. Nelson 1980-5-30 3395 Humboldt McKeown Ranch along rd. to Anderson's Ford 854 Comment
  UC908950  Leptosiphon latisectus Joseph P. Tracy 1927-5-8 7976 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  CAS-BOT-BC341829  Lessingia nemaclada Harley P. Chandler 1901-6-1 1503 Humboldt North Coast Ranges. Klamath River 426 Comment
  CAS-BOT-BC94818  Leucanthemum vulgare R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-6-6 837 Humboldt Humboldt Redwoods S.P., Pole Line Prairie along Pole Line Road, 1 air mi. N of Mattole Rd., 6 mi. E of Hwy. 101 274 Comment
  HSC67026  Leucanthemum vulgare J. P. Smith 1970-6-7 3803 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC102127  Lewisia nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1031 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC102511  Lewisia nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1496 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC673015  Lewisia triphylla Joseph P. Tracy 1935-7-24 14178 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  CAS-BOT-BC283513  Leymus X vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt Cape Mendocino, near ocean shore S of point of the cape 30 Comment
  UC34076  Leymus mollis subsp. mollis J. P. Tracy 1901-8-7 1267 Humboldt ocean beach opp. Eureka; Samoa Comment
  UC154113  Ligusticum apiifolium Joseph P. Tracy 1909-8-29 3084 Humboldt near top Humboldt Hill; Northern Coast Region, Humboldt Bay 0 Comment
  HSC56048  Ligusticum grayi G. L. Clifton, Terry Griswold 1979-7-31 11643 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC1101451  Lilaeopsis occidentalis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1166 Humboldt 1 mi. s. Fields Landing (Eel R. Valley); Eel R. Valley Comment
  HSC21521  Lilaeopsis occidentalis J. W. Johnson 1962-6-5 Humboldt Lanphere Farm, Samoa Peninsula, Hollow 10 Comment
  CAS-BOT-BC130638  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  CAS-BOT-BC130645  Lilium kelloggii A. M. Vollmer; L. Beane 1953-7-1 119 Humboldt Freshwater Comment
  RSA74745  Lilium kelloggii Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On trail to Blohns cabin, Bald Mountain, east of Korbel Comment
  UC666950  Lilium pardalinum Joseph P. Tracy 1938-7-4 15994 Humboldt Valley of South Yager Creek 762 Comment
  UC54663  Lilium pardalinum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5717 Humboldt Supply Creek; North Coast Ranges, Hupa Valley Comment
  HSC98051  Lilium pardalinum subsp. pardalinum Cara Witte 2007-7-11 488 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  UC1198229  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1932-7-19 10726 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  HSC69869  Limnanthes douglasii subsp. nivea Thomas W. Nelson 1978-5-28 4098 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC15785  Limnanthes douglasii subsp. nivea Jack Rockwell 1962-5-4 50 Humboldt E of road along stream bank. 488 Comment
  CAS-BOT-BC123073  Limnanthes douglasii var. nivea Lincoln Constance; Reed Clark Rollins 1942-5-21 3000 Humboldt 2 miles N of Harris 762 Comment
  CHSC89511  Limnobium laevigatum Gordon Leppig; T. LaBanca 2003-3-13 1823 Humboldt Arcata, Alder Grove Pond. On south shore of wetland. UTM Zone 10, 428185 N, 410100 E. 9 Comment
  HSC90320  Limonium californicum Jean Hanson 1980-6-22 102 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  UC154019  Limonium californicum Joseph P. Tracy 1901-8-7 1254 Humboldt Samoa Northern Coast Region, Region about Humboldt Bay (salt marsh) 0 Comment
  UC1198596  Linanthus androsaceus Joseph P. Tracy 1927-6-12 8168 Humboldt Horse Mountain Northern Coast Ranges 1066 Comment
  UC1198571  Linanthus bicolor Joseph P. Tracy 1906-6-10 2483 Humboldt Kneeland Prairie, at Fitzgerald's Northern Coast Ranges 762 Comment
  JEPS58239  Linanthus bicolor Lincoln Constance 1934-6-4 817 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region Comment
  UC1198544  Linanthus bolanderi Joseph P. Tracy 1922-5-29 6073 Humboldt near head of South Yager Creek; Northern Coast Ranges 762 Comment
  SFV18546  Linaria canadensis E. Cohen 2002-4-15 23 Humboldt Eureka. Comment
  SD37712  Linaria vulgaris Edith A. Purer 1932-7-30 Humboldt Orick, roadside Comment
  HSC99473  Linnaea borealis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 127 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC15799  Linum bienne John A. Dubois 1962-5-12 13 Humboldt 20 mi. E of Arcata Comment
  HSC15824  Linum bienne T. M. Mingo May 1965 Humboldt E of parking area at College cove. Comment
  SD51257  Linum bienne Darley F. Howe 1961-8-1 348 Humboldt 9.0 miles north of Arcata on Highway 101. Comment
  UC668019  Lipocarpha aristulata Joseph P. Tracy 1931-9-7 9650 c Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC1103025  Listera cordata Joseph P. Tracy 1929-4-29 8557 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  HSC63078  Listera cordata var. nephrophylla David Wheeler 1979-4-23 82 Humboldt Camp Bauer, Korbel, just past the entrance gate, on the left Comment
  CAS-BOT-BC36150  Lithocarpus densiflorus var. densiflorus L. B. Kildale 1931-8-9 s.n. Humboldt [Threc] Creeks on Willow Creek road Comment
  RSA293190  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, east side of junction of Kneeland & Maple Creek roads. 671 Comment
  RSA152286  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-8-15 18136 Humboldt Trinity Summit. On ridge 2 miles east of Grove's Prairie. 1524 Comment
  CHSC40210  Lithophragma affine L. P. Janeway 1984-5-13 779 Humboldt Along Redwood House Road 1 1/2 mi from the Kneeland/Bridgeville Road. Along South Fork Yager Creek. 762 Comment
  UC154055  Lithophragma affine Joseph P. Tracy 1908-6-9 2659 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC14526  Lithophragma affine W. C. Blasdale 1896-6-8 Humboldt Graham's Comment
  CAS-BOT-BC435645  Lithophragma heterophyllum Volney Rattan 1883-6-1 s.n. Humboldt Between Mad R. and Pilot Creek Comment
  UC1199422  Logfia filaginoides Joseph P. Tracy 1921-5-30 5489 Humboldt Kneeland Prairie 762 Comment
  RSA293179  Lolium perenne James Payne Smith Jr. 1977-7-3 9246 Humboldt Six Rivers National Forest, Along road to Onion Lake, just above Blue Lake 976 Comment
  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
  UC1197160  Lomatium dissectum var. dissectum Joseph P. Tracy 1933-7-25 12888 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  HSC70564  Lomatium macrocarpum M. A. Baker 1980-7-23 3141 Humboldt Near Orleans Mtn. 1859 Comment
  UC906635  Lomatium macrocarpum Joseph P. Tracy 1947-7-5 17780 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC47949  Lomatium tracyi Brad Klipfel 1974-5-8 326 Humboldt Horse Mountain Comment
  UC1438145  Lomatium tracyi Barbara Kelly 1978-5-1 587 Humboldt 1/4 mi from Horse Mountain Road 1/2 mi below turnoff to summit, near end of unused gravel road Comment
  HSC38861  Lomatium utriculatum J. P. Smith, J. O. Sawyer 1973-5-12 6678 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  UC1197140  Lomatium utriculatum Joseph P. Tracy 1924-3-16 6626 Humboldt Northern Coast Ranges, Garberville 121 Comment
  UC314599  Lomatium utriculatum Joseph P. Tracy 1923-7-4 6525 Humboldt Northern Coast Ranges, Valley of S. Yager Creek 762 Comment
  HSC99850  Lonicera conjugialis Jimerson, J. Pageau 1979-8-10 750 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa. 1463 Comment
  UC1239548  Lonicera conjugialis Joseph P. Tracy 1932-7-12 10481 Humboldt head Brett Hole; Trinity Summit 1828 Comment
  RSA43892  Lonicera hispidula var. vacillans H. M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  HSC62683  Lonicera involucrata var. ledebourii Michelle Stevens 1979-4-21 54 Humboldt Ponds across from Clam Beach. 0 Comment
  HSC95112  Lonicera involucrata var. ledebourii Andrea Pickart 2002-6-27 119 Humboldt Mad River Slough and Dunes, along access Rd. near parking area at N end. 15 Comment
  JEPS13675  Lonicera involucrata var. ledebourii Joseph P. Tracy 1937-6-20 15343 Humboldt 10 miles up from mouth Bear River 152 Comment
  POM284249  Lonicera involucrata var. ledebourii Lyman Benson 1928-7-10 816 Humboldt Clam Beach, Trinidad. 15 Comment
  JEPS55462  Lotus denticulatus W. L. Jepson 1902-6-19 1882 Humboldt Harris to Ft. Seward Ranch Ridge (= Mail Ridge) 1066 Comment
  UC1223407  Lotus denticulatus Joseph P. Tracy 1933-7-9 12655 Humboldt near Willow Creek (on Trinity Highway) 304 Comment
  UC1052471  Lotus formosissimus H. E. and S. T. Parks Jun 1952 24449 Humboldt Spruce Cove Trinidad 60 Comment
  HSC98244  Lotus humistratus H. E. Parks Aug 1941 24183 Humboldt Little River State Park Comment
  UC1197307  Lotus humistratus Joseph P. Tracy 1929-4-28 8546 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC79469  Lotus humistratus Kenneth Clark 1980-5-10 632 Humboldt Western slope above Dead Man's Gulch 130 Comment
  CDA27276  Lotus micranthus T. C. Fuller 1958-6-17 1722 Humboldt Petrolia, Lower Mattole. 0 Comment
  SEINET12154204  Lotus micranthus J. P. Tracy 1936-1 14866 Humboldt Coast BLuffs nr Trinidad 61 Comment
  HSC48061  Lotus strigosus Thomas W. Nelson 1978-4-23 3887 Humboldt Junction of Copher and Samoa Rds., N of Samoa Comment
  HSC39224  Lotus unifoliolatus var. unifoliolatus D. E. Anderson, J. P. Smith 1971-7-6 - 1319 Humboldt Rock wall near bridge over Supply Creek Comment
  CAS-BOT-BC198263  Lupinus Doris Kildale Gillespie 1931-6-7 10598 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  CAS-BOT-BC201189  Lupinus Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  UC503012  Lupinus adsurgens Joseph P. Tracy Jul 16 1930-Jul 19 1930 9059 Humboldt near Blake lookout, South Fork Mountain along summit; Northern Coast Ranges, South Fork Mountain 1737 Comment
  NY15765  Lupinus adsurgens V. K. Chesnut 1888-7-21 s.n. Humboldt West slope S. Fork Mt. Comment
  CDA27368  Lupinus albifrons var. collinus K. Eickhoff, C. M. Witte 2005-6-24 15 Humboldt Approximately 13 miles south of Highway 299 on NF1. Comment
  HSC32313  Lupinus albifrons var. flumineus D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5659 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC27880  Lupinus arboreus Clifton Raymond Chesbrough 1973-6-19 78 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge Comment
  SEINET10488462  Lupinus arboreus Charles R. Gunn 1963-6-2 Gunn 2697 Humboldt Vacant lot n of trinidad school. 3 Plants. 5-6 Ft tall Comment
  JEPS82235  Lupinus lapidicola Roger Raiche 1983-7-19 30538 Humboldt King Range, Saddle Mountain, King Ridge Trail Rd. Saddle Mountain; King Range, , King Ridge Trail Rd. 853 Comment
  HSC38069  Lupinus latifolius Thomas W. Nelson, James Nelson 1976-5-30 2638 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC14833  Lupinus latifolius R. Spellenberg 1964-6-15 415 Humboldt 7 mi. E of Redwood Creek, Hwy. 299. Comment
  JEPS65283  Lupinus latifolius var. latifolius Lincoln Constance 1934-5-29 714 Humboldt Upper Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC865228  Lupinus latifolius var. latifolius Elizabeth Parsons Hawver June 1915 Humboldt Carlotta Comment
  UC1223259  Lupinus lepidus var. lobbii Joseph P. Tracy 1940-7-7 16672 Humboldt ridge back Clear Lake (Grouse Mountain); , ridge back of Clear Lake 1524 Comment
  UC1223254  Lupinus littoralis Joseph P. Tracy 1938-6-16 15940 Humboldt Brainards Point, along highway between Eureka and Arcata Comment
  RSA21447  Lupinus luteolus Carl B. Wolf 1937-8-12 9211 Humboldt 20 mi. north of Bridgeville on road to Kneeland. 457 Comment
  UC1949190  Lupinus nanus Barbara Ertter with Thomas J. Delendick 1987-5-16 6923 Humboldt Vista Point just W of Berry Summit on Hwy 299, ca 15 airmiles E of Arcata; S-facing slope Comment
  UC427882  Lupinus nanus H. E. Parks 1930-5-25 869 Humboldt Laribee Valley; in open meadows in Laribee Valley Comment
  UC169346  Lupinus polyphyllus var. pallidipes Joseph P. Tracy 1912-6-9 3693 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC79484  Lupinus rivularis Kenneth Clark 1980-3-1 503 Humboldt Dead Man's Gulch, Shelter Cove 21 Comment
  RSA32847  Lupinus rivularis A. A. Heller 1923-7-8 13774 Humboldt Near Fortuna Comment
  UCD109515  Lupinus rivularis P. B. Kennedy 1928-7-15 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  RSA170274  Lupinus sellulus var. artulus Joseph P. Tracy 1918-7-5 5021 Humboldt White Thorn Valley. 305 Comment
  SD39056  Lupinus tidestromii Edith A. Purer 1932-7-25 4142 Humboldt Near Somoa Comment
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Apr 4 2020
  HSC59452  Lupinus tracyi Richard Runyon 1979-6-27 42 Humboldt Along trail to Trinity Summit Station, 50' S of intersection of Grogan hole-Devils backbone trail 1768 Comment
  HSC77385  Luzula comosa L. P. Janeway 1983-5-29 321 Humboldt Along Jolly Giant Creek, E of HSU campus 61 Comment
  UC1103676  Luzula parviflora Joseph P. Tracy 1901-4-26 1050 Humboldt Humboldt Hill Northern Coast Region, region about Humboldt Bay 0 Comment
  CAS-BOT-BC61936  Lycopodium clavatum Mrs. L. B. Kildale 1930-11-1 10755 Humboldt one mile north of Crannell, on trail to Camp 20 Comment
  UC1440267  Lycopodium clavatum L. L. Kiefer and D. Branscomb 1964-5-20 1435 Humboldt on Kuntz property 1 mi e Moonstone Beach (near Trinidad) 152 Comment
  CHSC84688  Lysichiton americanus L. P. Janeway 2003-7-27 7927 Humboldt North Coast. Edge of marsh on south side of southwest end of Hwy 101 causeway across Big Lagoon. 2 Comment
  HSC35502  Lysichiton americanus J. Burns 1962-4-18 Humboldt Eureka, Togo Rd. Comment
  JEPS42814  Lysichiton americanus W. L. Jepson 1902-6-24 1925 Humboldt Eureka Hupa Indian Reservation, Eureka Comment
  UC1222701  Lysichiton americanus Joseph P. Tracy 1950-7-6 18992 Humboldt lower end of Burr Valley Comment
  RSA0023003  Lythrum Robert F. Thorne, P. C. Everett 1965-8-9 35324 Humboldt Clam Beach County Park: along highway. 3 Comment
  SEINET11261199  Lythrum hyssopifolia W. J. Ferlatte, B. D. Rogers 1966-8-15 3132 Humboldt North Bank Road, 2 miles north of Arcata.; 0 Comment
  HSC100441  Madia filipes Carl C. Marshall Jun 1887 457 Humboldt Near Harris. Comment
  HSC58359  Madia gracilis Overton, Butler 1979-8-2 12706 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC98981  Madia gracilis Cara Witte 2007-7-11 483 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  UC582407  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC343025  Madia gracilis Doris K. Kildale 1927-6-25 3564 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  HSC35609  Madia gracilis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2021 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  UC495629  Madia gracilis Joseph P. Tracy 1927-7-4 8229 Humboldt Lawrence Creek, at crossing of the Kneeland Road 609 Comment
  UCSC000764  Madia sativa H. L. Person 1932-7-21 s.n. Humboldt Highway near Blue Lake Blue Lake - Eureka Comment
  RSA1369  Mahonia nervosa E. R. Johnson 1929-08 618 Humboldt 7 miles east of Arcata on the road to Willow Creek. 76 Comment
  HSC26821  Maianthemum dilatatum Clifton Raymond Chesbrough 1973-6-19 67 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UC545825  Maianthemum dilatatum H. E. Parks May, 1932 4289 Humboldt Trinidad, Bishop Pine Lodge Comment
  CAS-BOT-BC508503  Maianthemum dilatatum Wayne Roderick 1967-7-22 s.n. Humboldt Trinidad 30 Comment
  HSC15592  Maianthemum dilatatum J. W. Johnson 1962-4-21 1287 Humboldt Samoa Peninsula, Arcata Comment
  SEINET3992237  Maianthemum dilatatum C. O. Baker 1962-5-7 Humboldt 2 miles south of Trinidad along Hwy 101. Comment
  UCD161450  Maianthemum dilatatum K. Esau 1934-5-8 s.n. Humboldt Redwood Highway near Scotia. Comment
  HSC12251  Maianthemum racemosum subsp. amplexicaule Gary J. Stebbins 1970-4-5 56 Humboldt Along rd. to Maple Creek 1.6 mi. W of bridge over Mad River Comment
  HSC70842  Maianthemum racemosum subsp. amplexicaule Gail Newton 1980-6-16 185 Humboldt Near Onion Mtn. 1280 Comment
  HSC15650  Maianthemum racemosum subsp. amplexicaule V. G. Vieira 1963-5-2 47 Humboldt Butler Valley Ranch Comment
  HSC40874  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson 1976-7-9 3005 Humboldt S of Mt. lassic 1707 Comment
  RSA554593  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1993-5-9 4911 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  HSC57027  Maianthemum stellatum Overton, Butler 1979-7-24 9648 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  POM56123  Malacothrix floccifera Joseph P. Tracy 1918-7-6 5049 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC34160  Malacothrix floccifera Hy-Am Pum 1888-7-23 Humboldt Comment
  JEPS45610  Malus fusca W. L. Jepson 1902-6-23 1917 a Humboldt Fortuna to Loleta Comment
  UC14229  Malus fusca Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  HSC59708  Marah oregana Clark L. Miller 1979-5-13 2121 Humboldt N of Trinidad along Patricks Point Dr. Comment
  HSC7033  Marah oregana R. I. Bonn 1965-5-9 48 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  UC505101  Marah oregana Joseph P. Tracy 1929-4-28 8543 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC990711  Marah oregana Roxana S. Ferris 1951-9-5 12448 Humboldt Trinidad Head Comment
  HSC49806  Marah oregana R. York 1979-4-13 224 Humboldt Just N of College Cove Comment
  HSC93221  Marah oregana Gordon Leppig 1998-3-16 720 Humboldt McKinleyville, near end of Fischer Ave. at the Hammond Trail entrance 18 Comment
  CAS-BOT-BC67837  Marsilea vestita H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  UC1199283  Matricaria discoidea Joseph P. Tracy 1933-5-20 12217 Humboldt Capetown 30 Comment
  RSA183519  Matricaria matricarioides D. W. Pierson 1966-5-12 39 Humboldt 1.5 miles east of Light House on Table Bluff road Comment
  UC204870  Matricaria occidentalis Joseph P. Tracy 1918-6-16 4955 Humboldt Eureka Northern Coast Ranges 0 Comment
  JEPS65521  Medicago lupulina Lincoln Constance 1934-5-26 671 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end) 45 Comment
  CAS-BOT-BC281320  Melica harfordii David D. Keck 1948-7-2 6005 Humboldt E side Rocky Ridge, E of Berry's summit, 4.1 miles W of Willow Creek, near boundary of Six Rivers National Forest 457 Comment
  RSA10102  Melica harfordii Joseph P. Tracy 1926-6-20 7651 Humboldt Horse Mountain. 1524 Comment
  UC188816  Melica subulata Jos. Burtt Davy and W. C. Blasdale 1899-6-22 5822 b Humboldt Trinity Summit Comment
  HSC10331  Melica subulata DWC 1956-4-27 Humboldt Mattole area. Comment
  JEPS65552  Melilotus albus Lincoln Constance 1934-5-26 661 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end, sand and gravel bar) 45 Comment
  HSC71570  Melilotus albus J. P. Smith 1971-10-9 5042 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC1222473  Melilotus officinalis Joseph P. Tracy 1949-7-7 18337 Humboldt Blue Slide Van Duzen River 91 Comment
  SD42344  Mentha canadensis Carl B. Wolf 1937-9-12 9329 Humboldt Big Lagoon, south side along Redwood Highway. 6 Comment
  HSC12369  Mentha canadensis C. E. Fellows 1970-10-27 376 Humboldt Banks of Mad River 1/8 mi. W of Lindsey Creek Comment
  UC1191792  Mentha canadensis Malcolm A. Nobs and S. Galen Smith 1949-8-9 1241 Humboldt Town of Blue Lake; pond on s side Comment
  HSC49016  Mentha pulegium Patricia Shesgreen 1978-8-2 127 Humboldt Along rd. at 11th and B St. Arcata Comment
  UC562530  Mentzelia dispersa Joseph P. Tracy 1933-7-26 12916 Humboldt North Coast Ranges, Grouse Mountain 1524 Comment
  HSC37227  Menyanthes trifoliata Anonymous 1976-5-14 Humboldt NW of McClellan Mtn. Comment
  JEPS80897  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1571 C Humboldt Prairie Creek area, Mile 125.00, US Hwy 101 Prairie Creek area; , Mile 125.00, US Hwy 101 Comment
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Jul 9 2015
  HSC98317  Micropus californicus var. californicus H. E. Parks 1930-5-25 872 Humboldt Laribee Valley 762 Comment
  UC1199338  Micropus californicus var. californicus Joseph P. Tracy 1919-5-31 5150 Humboldt near Mouth of Willow Creek; Northern Coast Region, Valley of the Trinity River 152 Comment
  UC582439  Microseris douglasii subsp. douglasii Joseph P. Tracy 1929-5-5 8560 Humboldt Miranda, along South Fork of Eel River Northern Coast Ranges, South Fork of Eel River 121 Comment
  HSC60080  Microseris laciniata M. A. Baker 1978-5-6 497 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC1223043  Microseris laciniata subsp. laciniata Joseph P. Tracy 1947-6-8 17706 Humboldt by old Strong's District School House (5 mi e of town); Carlotta 60 Comment
  HSC32274  Microseris nutans D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5628 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC98617  Microsteris gracilis Cara Witte 2007-5-23 111 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1635 Comment
  HSC20685  Mimulus aurantiacus var. aurantiacus Steve Dorei 1970-10-31 132 Humboldt Scotia bluff area, N side of railroad tracks. Comment
  HSC20691  Mimulus aurantiacus var. aurantiacus S. J. Hawks 1965-5-18 83 Humboldt Clam Beach. Comment
  UC1063411  Mimulus aurantiacus var. aurantiacus H. L. Person 1932-7-23 Humboldt road e Korbel; Eureka Quadrangle Comment
  UC176996  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1912-6-9 3646 Humboldt Alton Northern Coast Region 30 Comment
  UCSB10373  Mimulus aurantiacus var. aurantiacus Parks, H.; Parks, S. 1951-6-1 Humboldt Along bay shore near landing, Trinidad Comment
  JEPS10552  Mimulus breweri Joseph P. Tracy 1932-7-10 10375 1/2 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC582605  Mimulus breweri Joseph P. Tracy 1932-7-10 10375 1/2 Humboldt Trinity Summit 1584 Comment
  UC582705  Mimulus grandis Joseph P. Tracy 1933-6-6 12501 Humboldt Trinidad 3 Comment
  HSC90636  Mimulus guttatus Gail Newton 1983-6-5 3554 Humboldt Elk River Wildlife Area, Eureka Comment
  UC175795  Mimulus guttatus Joseph P. Tracy 1912-7-26 3825 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS10799  Mimulus inodorus Joseph P. Tracy 1935-7-23 14165 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  UCD20373  Mimulus kelloggii K. Esau 1935-4-23 s. n. Humboldt Humboldt County, Fort Seward. Comment
  CDA41715  Mimulus kelloggii K. Esau 1935-4-23 s.n. Humboldt Ft. Seward. 0 Comment
  UC147923  Mimulus microphyllus Joseph P. Tracy 1908-6 2826 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  HSC73736  Mimulus moschatus M. A. Baker 1980-7-22 3090 Humboldt Near Grogan Hole. 1676 Comment
  BLMAR687  Mimulus moschatus Jennifer Wheeler 2012-8-30 687 Humboldt Lacks Creek, Beaver Ridge Pond 914 Comment
  HSC44775  Mimulus moschatus Thomas W. Nelson, Jane Nelson 1977-7-4 3606 Humboldt Along road north from Alder Springs 1524 Comment
  HSC44829  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3598 Humboldt Margin of pond above Alder Springs 1585 Comment
  JEPS13352  Mimulus nanus var. nanus W. K. Parks July, 1933 81423 Humboldt Buck Mt. Comment
  HSC12793  Mimulus pilosus Jana Kattenhorn 1970-10-28 149 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  UC582492  Mimulus pulsiferae Joseph P. Tracy 1933-7-25 12838 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
Read comments
Sep 10 2013
  HSC20826  Mimulus pulsiferae J. P. Tracy 1934-6-27 11089 Humboldt Grouse Mtn.; near 'Cold Springs 1433 Comment
  UC1222800  Mimulus pulsiferae Joseph P. Tracy 1950-7-6 19008 Humboldt 3 mi s Burr Valley (on the Albee Rd); Buck Mountain 1158 Comment
  UC147912  Mimulus pulsiferae Joseph P. Tracy 1908-6 2828 Humboldt Buck Mountain Northern Coast Ranges (nw slope, along waterway) 1219 Comment
  SEINET6904195  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC32281  Minuartia douglasii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5631 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC668122  Minuartia douglasii Joseph P. Tracy 1930-6-21 8783 Humboldt Larrabee Valley 731 Comment
  UC1198330  Minuartia douglasii Joseph P. Tracy 1911-7-4 3299 Humboldt Willow Creek Northern Coast Ranges (near mouth, tributary of Trinity River) 182 Comment
  HSC44280  Mitella ovalis Barbara Kelly 1977-4-23 305 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC492220  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC38514  Moehringia macrophylla D. E. Anderson, J. P. Smith 1971-6-18 - 1086 Humboldt Horse Mtn. Comment
  HSC70382  Moehringia macrophylla M. A. Baker 1980-6-7 1798 Humboldt Near Brush Mtn. 1128 Comment
  UC1198327  Moehringia macrophylla Joseph P. Tracy 1927-6-12 8131 Humboldt Horse Mountain 1432 Comment
  HSC49983  Moehringia macrophylla M. A. Baker 1979-6-7 788 Humboldt N bank of road to Snow Mtn. 610 Comment
  HSC101619  Monardella odoratissima subsp. pallida Cara Witte 2007-6-28 390 Humboldt Intersection of 6N08 (Friday Ridge Road) and 5N39. 1475 Comment
  UC1239679  Monardella purpurea Joseph P. Tracy 1935-7-14 14075 1/2 Humboldt Back of White Rock Springs; North Coast Ranges, Grouse Mountain 1554 Comment
  UC1239683  Monardella sheltonii Joseph P. Tracy 1912-7-26 3867 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC161061  Montia diffusa Joseph P. Tracy 1911-7-7 3404 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  RSA29091  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
  UC198599  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC229834  Montia howellii Joseph P. Tracy 1921-4-24 5431 Humboldt South Fork of Eel River (Phillipsville Flat); Northern Coast Ranges, , Phillipsville Flat 91 Comment
  CAS-BOT-BC445164  Montia parvifolia L. R. Abrams 1918-6-16 7202 Humboldt Willow Creek Comment
  HSC98550  Montia parvifolia Cara Witte 2008-6-27 765 Humboldt Along National Forest 1 on Kinsey Ridge. 1.5 mi. NE of intersection with 4N09. 1317 Comment
  UC673005  Montia parvifolia Joseph P. Tracy 1933-5-20 12215 Humboldt s of Ferndale (Wild Cat Ridge); Wild Cat Ridge 304 Comment
  HSC26877  Morella californica Clifton Raymond Chesbrough 1973-6-19 82 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge Comment
  CAS-BOT-BC275346  Muhlenbergia mexicana Henry M. Pollard 1956-10-9 s.n. Humboldt Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  UCD86804  Muhlenbergia mexicana Joseph P. Tracy 1918-9-29 5115 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  UC1239641  Myosotis discolor Joseph P. Tracy 1920-6-6 5337 Humboldt along Freshwater Creek near Wrangletown; Northern Coast Ranges 30 Comment
  HSC3730  Myosotis sylvatica William J. Ferlatte 1963-5-17 48 Humboldt Near 11th and B Sts., Arcata Comment
  JEPS70791  Myosotis verna Joseph P. Tracy 1937-5-17 15297 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC502985  Myrica californica Joseph P. Tracy 1930-5-18 8698 Humboldt Rohnerville Golf Course Northern Coast Ranges, Rohnerville Golf Course 152 Comment
  SEINET6671220 Image available Myrica californica Joseph P. Tracy 1931-1 9332 Humboldt Dows Prairie Comment
  HSC15608  Narthecium californicum J. P. Tracy 1930-7-17 9003 Humboldt S Fork Mtn. at McKay Camp 1677 Comment
  HSC12786  Nasturtium officinale M. J. Athey 1970-10-28 5 Humboldt Along old road to Trinidad, along E bank, Trinidad Comment
  JEPS70235  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  JEPS70296  Navarretia divaricata Joseph P. Tracy 1930-7-23 9119 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  HSC17129  Navarretia divaricata H. E. Parks 1939-6-27 5257 Humboldt Grouse Mtn. Comment
  UC146173  Navarretia intertexta Joseph P. Tracy 1908-6 2799 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC908640  Navarretia mellita Joseph P. Tracy 1934-7-9 13333 Humboldt 5 mi s Harris 762 Comment
  UC133643  Navarretia squarrosa J. P. Tracy 1909-7-18 3019 Humboldt Ocean Beach at Samoa Samoa Comment
  POM182444  Navarretia tagetina Chestnut, E. R. Drew 1888-7-23 s.n. Humboldt Hy-Am-Pom [=Hyampom, Trinity Co?] Comment
  UC1103810  Nemophila heterophylla Joseph P. Tracy 1922-4-30 5987 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC13571  Nemophila heterophylla Francis Winter 1960-4-24 Humboldt 2 mi. W of Hoopa Indian reservation, Bair Rd., near Supply Creek 305 Comment
  HSC13586  Nemophila menziesii Doris K. Kildale 1926-4-11 1762 Humboldt Buck Mtn. Comment
  UC1239741  Nemophila menziesii Joseph P. Tracy 1938-5-1 15729 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC219411  Nemophila parviflora Greg de Nevers 2001-4-17 12248 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  UC146185  Nemophila pedunculata Joseph P. Tracy 1908-6 2700 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 457 Comment
  UC198617  Nicotiana attenuata Joseph P. Tracy 1916-9-5 4763 Humboldt 4 mi above South Fork of Eel River mouth; Northern Coast Ranges 60 Comment
  HSC57344  Noccaea fendleri subsp. glauca Walter Overton, Marvin Butler 1979-7-26 10027 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UCD110165  Notholithocarpus densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt Near Boynton Prairie. 609 Comment
  HSC54589  Notholithocarpus densiflorus var. densiflorus Overton, Butler 1979-7-24 9657 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC79504  Notholithocarpus densiflorus var. densiflorus Kenneth Clark 1980-6-14 692 Humboldt N Fork of Dead Man's Gulch; throughout Shelter Cove 61 Comment
  HSC8073  Notholithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-7-25 2438 Humboldt Briceland Bridge, 1/2 mi. W of Garberville 114 Comment
  UCR45372  Notholithocarpus densiflorus var. densiflorus Barry Silver 1986-4-13 505 Humboldt Bair Road, 6.4 mi. WSW of Hoopa Comment
  CAS-BOT-BC142294  Oemleria cerasiformis Doris K. Kildale 1927-5-13 3140 Humboldt Redwood Creek at Berry's 289 Comment
  HSC37831  Oemleria cerasiformis Thomas W. Nelson, Jane P. Nelson 1976-2-21 2248 Humboldt Tish-Tang campground Comment
  UC1198789  Oemleria cerasiformis Joseph P. Tracy 1933-3-26 10946 Humboldt hills at n end Big Lagoon 60 Comment
  UC1222314  Oemleria cerasiformis Joseph P. Tracy 1951-6-21 19514 Humboldt opposite Willow Creek; Trinity Valley Comment
  HSC21577  Oenanthe sarmentosa Paul Shields 1965-6-16 Humboldt HSC campus Comment
  HSC97444  Oenanthe sarmentosa Ivy Watson 2008-9-28 27 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  UC154098  Oenanthe sarmentosa J. P. Tracy 1900-7-22 902 Humboldt immediate vicinity Eureka 0 Comment
  CDA38487  Oenanthe sarmentosa Tario 1932-9-27 s.n. Humboldt Arcata. 0 Comment
  UCD127762  Oenanthe sarmentosa C. S. Myszka 1921-4-1 s.n. Humboldt County unknown: location unknown. Comment
  UC1196948  Oenothera glazioviana J. P. Tracy 1898-9-25 281 Humboldt along streets Eureka 0 Comment
  CAS-BOT-BC171605  Oenothera wolfii L. R. Abrams 1918-6-16 7168 Humboldt Willow Creek Comment
  CHSC70028  Oenothera wolfii David K. Imper 1988-8-15 Humboldt Hoopa Square, just n of junction Hwy 299 and Big Hill Rd., E side of 299, S of Sawdust Burner. Roadside. 152 Comment
  HSC95443  Oenothera wolfii D. K. Imper 1986-9-1 Humboldt S of Trinidad, Hwy. 101, across from Clam Beach 5 Comment
  UC203546  Oenothera wolfii Joseph P. Tracy 1918-7-1 4968 Humboldt moist bluff Northern Coast Ranges, Cape Mendocino (three mi s of point of cape) 3 Comment
  UC666999  Olsynium douglasii var. douglasii Joseph P. Tracy 1930-5-25 8704 Humboldt Larrabee Valley 731 Comment
  RSA0070495  Orobanche californica subsp. californica Edward Lee 1934-8-17 1152 Humboldt East shore of Big Lagoon, 35 miles north of Eureka. 3 Comment
  UC1197457  Orobanche fasciculata Joseph P. Tracy 1921-5-30 5492 Humboldt Northern Coast Ranges. Kneeland Prairie. Comment
  HSC96246  Orobanche uniflora Kaylea Eickhoff, Cara M. Witte 2005-6-10 10 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  HSC100380  Orobanche uniflora J. McRae 2010-6-23 Humboldt Swim Ridge (Black Rock Mountain West), off Ruth Rd. (CR 504) and F.S. Rd. 27N02. 1329 Comment
  HSC53930  Orthocarpus cuspidatus subsp. cuspidatus Terry Griswold, Marvin Butler 1979-7-11 6947 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek 1320 Comment
  POM225846  Orthocarpus lithospermoides M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  RSA246669  Orthocarpus purpurascens var. latifolius Robert F. Thorne, Percy C. Everett 1965-8-7 35219 Humboldt Samoa Peninsula. 3 Comment
  SEINET3111140  Osmaronia cerasiformis Steve Selva, Roger Jensen 1974-8-28 93 Humboldt Humboldt State University Freshwater Forest. Comment
  HSC74434  Osmorhiza berteroi Gail Newton 1980-8-10 2064 Humboldt Near Blake Mtn. 1707 Comment
  JEPS14241  Osmorhiza occidentalis Joseph P. Tracy 1928-6-24 8462 Humboldt Valley of South Yager Creek 762 Comment
  HSC12761  Oxalis articulata subsp. rubra M. J. Athey 1970-11-8 12 Humboldt Along Arcata blvd., in Arcata. Comment
  HSC100585  Oxalis oregana Carl C. Marshall Mar 1886 151 Humboldt Everywhere. Comment
  UC1197421  Oxalis oregana Joseph P. Tracy 1901-6-10 1136 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC45275  Oxalis oregana Brad Klipfel 1973-4-28 6 Humboldt Along Korbel to Maple Creek County Rd. Comment
  JEPS43139  Oxalis oregana W. L. Jepson 1932-7-28 16432 Humboldt Bull Creek Flat Comment
  SEINET3347650 Image available Oxalis oregana Joseph P. Tracy 1918-5-28 4940 Humboldt High Prairie Creek, east of Bald Mt. Comment
  UC502973  Oxalis pes-caprae Joseph P. Tracy 1927-3-23 7845 Humboldt Eureka Northern Coast Ranges Comment
  UC668042  Oxalis trilliifolia Joseph P. Tracy 1936-8-8 15143 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1145220  Panicum acuminatum var. acuminatum Joseph P. Tracy 1939-7-9 16323 Humboldt Bald Mountain at Lake Prairie; Bald Mountain at Lake Prairie 1066 Comment
  UC196966  Panicum acuminatum var. acuminatum Joseph P. Tracy 1915-6-6 4645 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  HSC72396  Parentucellia viscosa J. P. Smith 1971-10-6 4980 Humboldt End of Murray Rd. in McKinleyville. Comment
  CDA6383  Parentucellia viscosa Mills Jul 1948 Humboldt 0 Comment
  UCSB15925  Parentucellia viscosa Breedlove, Dennis 1962-6-8 Humboldt Near coast on U.S. Highway 101, 3 miles south of Orick Comment
  UC249586  Paxistima myrsinites Joseph P. Tracy 1921-6-19 5835 Humboldt mt. slopes along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, Three Creeks 670 Comment
  UC249593  Paxistima myrsinites Joseph P. Tracy 1922-4-30 6042 Humboldt ridge n. of Willow Creek between Willow Creek and Campbell Creek (Brannan Mt.); Northern Coast Ranges, Brannan Mt. 914 Comment
  UC902125  Paxistima myrsinites Joseph P. Tracy 1942-6-23 17245 Humboldt 2 mi. e. Box Camp; Trinity Summit 1524 Comment
  HSC34280  Pedicularis racemosa K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  HSC100393  Pellaea ornithopus Carl C. Marshall Apr 1887 361 Humboldt Supply Creek, a mile or two from Hoopa. Comment
  HSC63803  Penstemon anguineus M. A. Baker 1979-6-7 798 Humboldt Along road to Telescope Peak next to stream between Telescope Peak and Snow Mtn. 915 Comment
  UC1198045  Penstemon anguineus Harold E. Parks and Joseph P. Tracy 1949-6-25 11666 Humboldt at Mud Springs on Trinity Summit Trinity Summit, at Mud Springs 1524 Comment
  JEPS11634  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15513 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  HSC73634  Penstemon newberryi M. A. Baker 1980-7-23 3180 Humboldt Near Orleans Mtn. 1859 Comment
  RSA517741  Penstemon newberryi subsp. berryi W. K. Parks 1933-07 s.n. Humboldt South Fork Mountain. Comment
  HSC102618  Penstemon newberryi var. berryi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1605 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC76252  Penstemon parvulus Denis Kearns 1981-7-6 73 Humboldt Near Mosquito Lake 1256 Comment
  HSC81903  Penstemon procerus var. brachyanthus Thomas W. Nelson 1979-7-11 4995 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC63142  Penstemon procerus var. brachyanthus M. A. Baker 1979-6-27 932 Humboldt E of Oregon Creek, at the head of Grogan Hole Comment
  HSC1080  Pentagramma triangularis D. E. Anderson 1963-3-16 2389 Humboldt Scotia Bluffs Comment
  HSC36644  Pentagramma triangularis J. D. Ackerman 1974-5-25 262 Humboldt Trinidad, South Trinidad Beach, S of Trinidad Head. Comment
  RSA0066316  Pentagramma triangularis Lyman Benson 1928-7-12 472 Humboldt Weott Ranger Station. Seaward N Coast Range, S Fork Eel River watershed. 61 Comment
  UC162775  Pentagramma triangularis subsp. triangularis Joseph P. Tracy 1911-7-5 3315 Humboldt Willow Creek near its mouth Willow Creek; Northern Coast Ranges, tributary of Trinity River 243 Comment
  UCSB51227  Pentagramma triangularis subsp. triangularis Almanza, Ed 1976-7-16 Humboldt 6.2 miles west of Berry Summit, Highway 299 762 Comment
  UC642305  Perideridia howellii Joseph P. Tracy 1939-9-4 16474 Humboldt Larrabee Valley; gully in foothills at edge of valley 731 Comment
  HSC32529  Perideridia kelloggii Thomas W. Nelson 1973-9-3 1133 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC89625  Petasites frigidus Brent Helm, Curtis Miller, Mark Steiger 1988-3-12 29 Humboldt Lord Ellis Summit, Hwy. 299, N facing slope adjacent to Hwy. 518 Comment
  CAS-BOT-BC330380  Petasites frigidus var. palmatus M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles N of Garberville Comment
  CDA8459  Petasites frigidus var. palmatus E. C. Whitney 1964-4-1 Humboldt Kneeland. 0 Comment
  HSC79486  Petasites frigidus var. palmatus Kenneth Clark 1980-3-23 534 Humboldt South fork of Dead Man's Gulch 38 Comment
  HSC98989  Petasites frigidus var. palmatus Cara Witte 2008-6-4 680 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1276 Comment
  HSC42200  Phacelia bolanderi Ed Cope 1977-4-23 22 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  POM287461  Phacelia bolanderi Lyman Benson 1928-7-12 484 Humboldt Woods across South Fork Eel River from Weott Ranger Station; seaward north coast mt. range. 61 Comment
  UC24323  Phacelia ciliata var. ciliata J. P. Tracy 1899-4-4 Humboldt Eureka Comment
  UC1199106  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1945-7-4 17512 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD88333  Phalaris angusta A. A. Beetle; J. P. Tracy, G. L. Stebbins Jr. 1942-6-2 3465 Humboldt 1 mile E of Alton. Comment
  CAS-BOT-BC258866  Phalaris aquatica Joseph P. Tracy 1934-6-21 13241 Humboldt Around Humboldt Bay. Along highway across Salmon Creek flats 6 Comment
  BLMAR51  Phalaris californica Brad Barr June, 1982 51 Humboldt King range, Lake ridge Nroth facing slope Comment
  CAS-BOT-BC258964  Phalaris californica John Thomas Howell 1937-7-31 13718 Humboldt Between Redwood Creek and Korbel Comment
  JEPS49603  Philadelphus lewisii Joseph P. Tracy 1926-6-27 7696 Humboldt Horse Mountain Northern Coast Ranges 1066 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
  RSA0046935  Philadelphus lewisii Joseph P. Tracy 1926-6-27 7696 Humboldt Horse Mountain. 1067 Comment
  HSC74182  Phleum alpinum M. A. Baker 1980-7-22 3105 Humboldt Near Grogan Hole. 1676 Comment
  HSC35709  Phlox adsurgens Thomas W. Nelson, B. Reinhardt 1975-7-30 2092 Humboldt Grouse Creek side of Last Chance Ridge. Comment
  UC1191119  Phlox adsurgens Joseph P. Tracy 1925-6-7 7058 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UC60870  Phlox adsurgens Mrs. M. H. Manning Humboldt Bair's Hill Hoopa Valley Comment
  HSC100895  Phlox douglasii Carl C. Marshall Jun 1886 349 Humboldt Trinity Summit. Comment
  JEPS71126  Phlox gracilis Joseph P. Tracy 1933-7-11 12699 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC36086  Phyllospadix scouleri McCready 1959-11-8 Humboldt Near Trinidad Head Comment
  JEPS386  Phyllospadix torreyi Joseph P. Tracy 1938-9-9 16146 Humboldt Trinidad Comment
  SD41322  Pinus contorta Edith A. Purer 1932-7-27 4132 Humboldt Samoa, near Arcata Comment
  UC1585370  Pinus contorta subsp. contorta R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 15 Humboldt w of Eureka (0.5 km s of Hwy. 255 on New Navy Base Rd. on North Spit of Samoa Peninsula, unstabilized dune system); North Spit Samoa Peninsula 5 Comment
  CAS-BOT-BC73113  Pinus lambertiana Doris K. Kildale 1926-9-5 2611 Humboldt Lassecks Peaks, Goat Camp 1661 Comment
  HSC41287  Pinus lambertiana Brad Klipfel 1974-7-27 481 Humboldt Horse Mtn. Comment
  HSC55094  Pinus monticola G. L. Clifton, Griswold 1979-7-31 11797 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC1204918  Pinus muricata unknown July, 1935 Humboldt 1/2 mi or so back from ocean; Moonstone Beach settlement 60 Comment
  JEPS79893  Piperia elongata Joseph P. Tracy 1925-7-12 7213 Humboldt near the South Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  CDA42401  Pittosporum tenuifolium R. Robison 2014-5-5 s.n. Humboldt Trinidad State Beach, in area west of town, southwest of State Park Road parking lot, along path toward Ewing Street. 0 Comment
  UC1197758  Pityopus californicus Joseph P. Tracy 1925-7-5 7184 Humboldt High Prairie on Bald Mountain North Coast Ranges 1066 Comment
  HSC41224  Plagiobothrys hispidulus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3593 Humboldt Margin of pond above Alder Springs 1585 Comment
  HSC63979  Plagiobothrys nothofulvus J. P. Smith, J. O. Sawyer 1973-5-12 6679 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS68107  Plagiobothrys nothofulvus Lincoln Constance 1934-5-23 617 Humboldt above Look Prairie; Bull Creek Region, South Fork Eel River 365 Comment
  UC582615  Plagiobothrys reticulatus Joseph P. Tracy 1937-6-20 15335 Humboldt ten mi up stream from mouth Bear River 152 Comment
  UC1222206  Plagiobothrys scouleri Joseph P. Tracy 1946-5-30 17538 Humboldt 2 mi so Bridgeville 457 Comment
  UC175681  Plagiobothrys tenellus Joseph P. Tracy 1908-6-9 2646 Humboldt gravelly hills Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1196140  Plantago erecta Joseph P. Tracy 1912-5-12 3638 Humboldt Eureka Northern Coast Region 0 Comment
  UC28045  Plantago erecta Harley P. Chandler May 1901 1137 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  JEPS14283  Plantago erecta Joseph P. Tracy 1905-4-30 2174 Humboldt Fairhaven Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  BLMAR262  Plantago lanceolata Jennifer Anthony-Wheeler 1998-7-14 262 Humboldt King range, strawberry rock grazing allotment 280 Comment
  UCD124624  Plantago maritima James Payne Smith Jr. 1970-6-7 3813 Humboldt 0.6 miles north of Luffenholtz Beach along California 1 near Trinidad. Comment
  UC1192024  Plantago maritima var. juncoides Malcolm A. Nobs and S. Galen Smith 1949-8-3 1205 Humboldt about 2 mi n Eureka; Humboldt Bay Comment
  HSC53952  Platanthera dilatata Griswold, Butler 1979-7-11 7002 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC27019  Platanthera dilatata var. leucostachys Brad Klipfel 1973-8-9 266 Humboldt Big Lagoon County Park Comment
  HSC54595  Platanthera dilatata var. leucostachys Overton, Butler 1979-7-24 9669 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1196421  Platanthera leucostachys Joseph P. Tracy 1927-8-22 8342 Humboldt near High Prairie (Bald Mountain); Bald Mountain 1066 Comment
  HSC16803  Platystemon californicus J. Wendell Howe 1934-6-27 1291 Humboldt Samoa Comment
  HSC90238  Platystemon californicus Louise Watson, Jan Meninga Mar 1991 14 Humboldt Near Manilla, Mad River Slough and Dunes, NW edge of parking lot Comment
  UC175689  Plectritis brachystemon Joseph P. Tracy 1912-6-16 3703 Humboldt near Hookton (Region about Humboldt Bay, Northern Coast Region); Northern Coast Region 0 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
  UCD90101  Pleuropogon refractus A. A. Beetle; G. L. Stebbins Jr., J. P. Tracy 1942-6-2 3482 Humboldt branch of South Fork of Yager Creek. North of Yager. Comment
  HSC23046  Poa annua D. E. Anderson 1970-5-21 Humboldt Scotia Bluffs, across the river from Rio Dell-Scotia. Comment
  HSC40866  Poa annua Linda M. Barker 1976-4-30 1399 Humboldt 3 mi. W of Arcata Comment
  HSC89479  Poa annua P. A. Daly 1986-3-12 76 Humboldt Trinidad Head, along trail 61 Comment
  JEPS72921  Poa annua Lincoln Constance 1934-6-19 918 Humboldt near summit Grasshopper Peak; Bull Creek Region 914 Comment
  CAS-BOT-BC254715  Poa bolanderi Joseph P. Tracy 1930-7-16 8902 Humboldt South Fork Mountain: near McKay Camp 1676 Comment
  UC1103791  Poa bolanderi Joseph P. Tracy 1935-7-28 14334 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  CAS-BOT-BC254897  Poa bulbosa Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  SEINET178314 Image available Poa compressa Joseph P. Tracy 1913-7-20 4378 Humboldt on Redwood Creek at the Berry crossing 300 Comment
  UC205645  Poa douglasii Joseph P. Tracy 1917-5-30 4804 Humboldt sand dunes of Ocean Beach at Little River Comment
  UC525621  Poa douglasii Joseph P. Tracy 1933-5-20 12224 Humboldt s of point of the Cape Cape Mendocino 3 Comment
  SEINET236442 Image available Poa howellii Joseph P. Tracy 1906-6-10 2486 Humboldt Kneeland Prairie. 762 Comment
  HSC10692  Poa macrantha J. W. Johnson 1961-9-10 1111 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC38922  Poa macrantha Linda M. Barker 1976-6-22 1625 .5 Humboldt 3 mi. W of Arcata Comment
  HSC40338  Poa pratensis Linda M. Barker 1976-6-1 1567 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UCD91937  Poa pratensis A. Murphy 1951-5-18 s.n. Humboldt W. Roscoe Ranch, Upper Mattole, near Mattole River. Comment
  HSC102232  Poa pratensis subsp. pratensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1153 Humboldt Patterson Meadows 1566 Comment
  UC180500  Poa secunda subsp. secunda Joseph P. Tracy 1913-6-14 4120 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC525667  Poa secunda subsp. secunda Joseph P. Tracy 1927-5-15 8051 Humboldt w Hoopa Valley (Supply Creek); North Coast Ranges 304 Comment
  UCD91730  Poa secunda subsp. secunda A. H. Murphy 1947-4-2 s.n. Humboldt 2 miles S of Blocksburg. Comment
  HSC10805  Poa trivialis William J. Ferlatte 1963-5-6 35 Humboldt Arcata, near 11th and B Sts. Comment
  HSC45283  Polycarpon tetraphyllum R. W. Becking 1978-5-21 Humboldt Coast Guard Station on the N Spit to Humboldt Bay in bunker area Comment
  UC502963  Polygala californica Joseph P. Tracy 1927-7-24 8291 Humboldt Upper Mattole Northern Coast Ranges, Upper Mattole 152 Comment
  UC1198992  Polygala cornuta var. cornuta Joseph P. Tracy 1926-6-27 7674 Humboldt Horse Mountain Northern Coast Ranges (in dryest places) 1524 Comment
  UC165802  Polygala cornuta var. cornuta Joseph P. Tracy 1911-7-8 3447 Humboldt hill slopes at w side Trinity River (near Willow Creek); Northern Coast Ranges 152 Comment
  POM126162  Polygonum bolanderi Joseph P. Tracy 1921-8-21 5944 Humboldt Trinity River at mouth of South Fork. 152 Comment
  UC146191  Polygonum californicum Joseph P. Tracy 1908-6 2922 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC1198087  Polygonum convolvulus Joseph P. Tracy 1947-8-10 17881 Humboldt Eureka 30 Comment
  HSC55083  Polygonum douglasii G. L. Clifton, Griswold 1979-7-31 11747 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC672957  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1930-7-17 9015 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC672982  Polygonum hydropiper Joseph P. Tracy 1927-10-8 8386 Humboldt Boyes Ranch Prairie Creek 91 Comment
  HSC55096  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11800 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC56172  Polygonum minimum G. L. Clifton, Griswold 1979-8-1 12065 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC75441  Polygonum minimum J. O. Sawyer 1980-7-18 3608 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA65853  Polygonum paronychia F. W. Peirson 1941-7-29 13109 Humboldt old sand dune back of beach at Little River Beach State Park Comment
  UC1198082  Polygonum persicaria Joseph P. Tracy 1912-10-20 3990 Humboldt near Loleta Pond; Northern Coast Ranges, Eel R. Valley 15 Comment
  HSC103385  Polygonum phytolaccifolium K. Auker, R. Battleson 2007-6-15 13 Humboldt Grouse Mtn.; along Forest Service Road 5N04, 1.0 mi. E of FS Road NF1. 1494 Comment
  CAS-BOT-BC419954  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1949-8-11 18480 Humboldt Kinsey Ridge. South from Grouse Mt., 2 to 6 miles. 1402 Comment
  UC1052469  Polygonum sachalinense H. E. and S. T. Parks July 1952 24448 Humboldt Hwy 10 s Elk River Bridge Comment
  CAS-BOT-BC421011  Polygonum spergulariiforme Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET3404060 Image available Polygonum spergulariiforme H. E. Parks, J. P. Tracy 1930-9-15 767 Humboldt Bald Hills, Kneeland Comment
  CAS-BOT-BC71921  Polypodium californicum Donald Branscomb 1959-2-1 s.n. Humboldt Trinidad Comment
  HSC70409  Polypodium californicum M. A. Baker 1980-6-7 1832 Humboldt Near Ammon Creek 732 Comment
  HSC77391  Polypodium californicum L. P. Janeway 1983-4-16 232 Humboldt Near old hwy. 299 on W side of Berry Summit 823 Comment
  SEINET200791 Image available Polypodium glycyrrhiza Joseph P. Tracy 1914-5-14 4429 Humboldt Fort Seward 122 Comment
  UC275412  Polypodium glycyrrhiza Joseph P. Tracy 1925-11-25 7326 Humboldt near the S Fork Trinity River Valley; Northern Coast Ranges 182 Comment
  CAS-BOT-BC76848  Polypodium glycyrrhiza Doris K. Kildale 1928-2-19 4262 Humboldt Big Rock between Little River and Moonstone Beach Comment
  JEPS33247  Polypodium glycyrrhiza Lincoln Constance 1934-5-31 748 Humboldt Bull Creek Region, S. Fork Eel R. Comment
  UC197920  Polypodium glycyrrhiza Joseph P. Tracy 1914-6-7 4490 Humboldt N. Fork Eel River; Northern Coast Region 0 Comment
  HSC89486  Polypodium scouleri P. A. Daly 1986-3-12 68 Humboldt Trinidad Head, along trail 61 Comment
  SEINET6166118  Polypodium scouleri W. D. Billings 1940-6-22 1345 Humboldt 1/2 mile north of Trinidad Comment
  UC39751  Polypogon interruptus Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5520 Humboldt near Pepperwood; near Pepperwood Comment
  UC1440060  Polystichum Danin & H. G. Baker 1960-8-14 614 b Humboldt ca. 1 mi toward Garberville from Myers Flat (Nelson Grove); Humboldt Redwoods State Park Comment
  RSA693276  Polystichum lonchitis Anstruther Davidson 1923-8-10 17060 Humboldt Near Bridgeville Comment
  SDSU276  Polystichum munitum D. R Harvey 1938-8-13 2251 Humboldt Redwood Park. Comment
  HSC79147  Polystichum munitum C. J. Thomas 1984-9-25 119 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  RSA693325  Polystichum munitum Anstruther Davidson 1923-8-11 17065 Humboldt Scotia - Redwood Forest Comment
  SEINET6840758  Polystichum munitum R. A. Evers 1962-9-1 75334 Humboldt Patrick Point State Park. Comment
  UCSB29341  Polystichum munitum Phelps, M. 1972-3-20 Humboldt 1.5 miles from Gaberville along Old Briceland Rd., 0.5 miles N of roadside. 213 Comment
  JEPS64534  Populus Joseph P. Tracy 1939-4-18 16211 Humboldt on South Fork of Eel River between Miranda and Redway (at Sylvandale); North Coast Ranges, South Fork of Eel River 91 Comment
  CAS-BOT-BC102904  Populus trichocarpa Doris K. Kildale 1926-7-18 2390 Humboldt Redwood Creek at Orick 30 Comment
  HSC86453  Potamogeton natans D. K. Imper 1987-5-3 Humboldt Fish Lake 915 Comment
  RSA54124  Potamogeton natans Henry M. Pollard 1946-8-16 s.n. Humboldt Near Camp Creek, Orleans region. Comment
  HSC17758  Potamogeton nodosus R. L. Jarvis 1962-4-29 35 Humboldt Turner draw, 3 mi. N of Arcata on Hwy. 101 15 Comment
  HSC18734  Potentilla anserina subsp. pacifica R. E. Hafenfeld 1965-5-9 13 Humboldt Near Squashan Cr. near Gold Bluff Beach Rd. Comment
  RSA245008  Potentilla anserina var. grandis Jerry Parker 1968-10-13 111 Humboldt Coastal Strand near the mouth of the Mad River. Comment
  HSC82396  Potentilla drummondii Thomas W. Nelson 1979-7-11 5010 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC99485  Potentilla gracilis var. gracilis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 144 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
  RSA246702  Potentilla palustris Robert F. Thorne 1965-8-7 35184 Humboldt Big Lagoon. 2 Comment
  SBBG979  Prosartes hookeri H. and M. Dearing 1933-5-16 253 Humboldt Weott Comment
  CAS-BOT-BC517514  Prosartes smithii Kenneth Clark 1980-3-24 539 Humboldt Upper terrace of Dead Man's Gulch; Shelter Cove 76 Comment
  SEINET12044958  Prosartes smithii H. C. Cantelow 1936-1 s.n. Humboldt 11 mi E of Orick Comment
  HSC23126  Prunella vulgaris A. D. Maxfield 1967-7-12 2 Humboldt 400 yds. SW of Strawberry Creek and Dows Prairie Rd., McKinleyville 91 Comment
  UC902030  Prunella vulgaris var. lanceolata Joseph P. Tracy 1949-8-4 18421 Humboldt Mud Springs Trinity Summit; , Mud Springs 1341 Comment
  RSA34246  Prunella vulgaris var. lanceolata L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  CAS-BOT-BC154739  Prunus virginiana var. demissa Doris K. Kildale 1926-5-20 3240 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC154740  Prunus virginiana var. demissa Doris K. Kildale 1926-5-16 1841 Humboldt Horse Mountain 792 Comment
  UC1198773  Prunus virginiana var. demissa Joseph P. Tracy 1933-5-14 12176 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC666842  Prunus virginiana var. demissa Joseph P. Tracy 1933-7-16 12796 Humboldt South Fork Mountain, W slope near top, at Hyampom Trail 1676 Comment
  CAS-BOT-BC357606  Pseudognaphalium stramineum Joseph P. Tracy 1937-6-26 15364 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC357600  Pseudognaphalium stramineum Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  UC1193111  Pseudotsuga menziesii P. Zinke 1950-8-3 145 Humboldt 3 mi s of Harris; Quad. 29D3 914 Comment
  HSC30338  Pseudotsuga menziesii var. menziesii Dale R. Gradek 1974-5-2 34 Humboldt 0.25 mi N of intersection of Dows Prairie Rd. and Grange Rd. Comment
  HSC54576  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-24 9612 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC70640  Pseudotsuga menziesii var. menziesii R. York 1980-5-18 593 Humboldt Near Black Mtn. 792 Comment
  SBBG360  Pseudotsuga menziesii var. menziesii M. J. Cody 1938-7-10 Humboldt near Trinidad Comment
  UC63998  Pseudotsuga menziesii var. menziesii Mrs. M. H. Manning 1902-3-1 Humboldt Comment
  UC165838  Psilocarphus oregonus Joseph P. Tracy 1908-6 2798 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1222913  Psilocarphus tenellus Joseph P. Tracy 1946-6-23 17597 Humboldt se end Kneeland Prairie (near the old Dan McBride place) 762 Comment
  HSC55176  Pteridium aquilinum var. pubescens Gilbert Muth 1979-8-1 12178 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC73078  Pteridium aquilinum var. pubescens M. A. Baker 1980-5-18 1347 Humboldt Near Black Mtn. 792 Comment
  HSC99408  Pteridium aquilinum var. pubescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 57 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC38325  Pteridium aquilinum var. pubescens J. D. Ackerman 1975-9-15 744 Humboldt Arcata, behind Fern Ln. E of Humboldt State University Comment
  RSA275352  Pteridium aquilinum var. pubescens J. P. Smith, Steve Selva 1970-6-14 3855 Humboldt Along Calif. 96 at Whitmore Creek. 152 Comment
  HSC98648  Pterospora andromedea Cara Witte 2007-8-8 624 Humboldt Intersection of National Forest 1 and Forest Service Road 6N38. 1409 Comment
  UC642279  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-4-28 8549 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CHSC104064  Pyracantha angustifolia Peter F. Zika 2009-6-15 24493 Humboldt North Coast Ranges. Route 299, 0.2 km W of Davis Street, near town of Blue Lake. 80 Comment
  CAS-BOT-BC460605  Pyrola aphylla Doris K. Kildale 1925-6-28 840 Humboldt Laurence Creek 609 Comment
  CAS-BOT-BC462872  Pyrola asarifolia J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek Comment
  SBBG59887  Pyrola asarifolia S. W. Hutchinson -Jun-1927 317 Humboldt Redwood Hwy 304 Comment
  JEPS66560  Pyrola asarifolia subsp. bracteata Lincoln Constance 1934-6-8 835 Humboldt Cow Creek fire-trail from Bull Cr road n over the divide into the headwaters Bear Cr (Bull Creek Region, South Fork Eel River); South Fork Eel River, Bull Creek Region Comment
  HSC99085  Pyrola dentata Cara Witte 2007-6-26 355 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  UC32690  Pyrola picta Chestnut and Drew 1888-7-21 Humboldt South Fork Mts. Comment
  CAS-BOT-BC466041  Pyrola picta Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  RSA0080452  Pyrola picta Lyman Benson 1928-7-10 400 Humboldt Woott Ranger Station. 1067 Comment
  UC314639  Pyrola picta Joseph P. Tracy 1926-6-6 7564 Humboldt Hoopa Mountain. On road west from Hoopa Valley 914 Comment
  CAS-BOT-BC62674  Quercus chrysolepis Doris K. Kildale 1927-5-15 3303 Humboldt Petrolia Comment
  HSC35601  Quercus chrysolepis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2012 Humboldt French Camp, Bald Hills. Comment
  HSC98518  Quercus chrysolepis Cara Witte 2008-8-6 1013 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  UC1196530  Quercus chrysolepis Joseph P. Tracy 1935-7-14 14066 Humboldt ridge back of Clear Lake; North Coast Ranges, Grouse Mountain 1524 Comment
  UC1222292  Quercus chrysolepis Joseph P. Tracy 1950-8-4 19256 Humboldt at head of Canoe Creek, summit of ridge ne of the lookout station, Grasshopper Peak, in Bull Creek State Park Bull Creek State Park, Grasshopper Peak, Canoe Creek Comment
  CAS-BOT-BC94308  Quercus garryana L. B. Kildale 1930-8-3 10335 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  HSC48346  Quercus garryana Maralyn O'Meara 1974-7-11 527 Humboldt Kneeland, Barry Ridge Comment
  JEPS37943  Quercus garryana W. L. Jepson Jul 16 1902-Jul 23 1902 2060 Humboldt trail to Devil's Backbone Trinity Summit 2133 Comment
  UC1193247  Quercus garryana P. Zinke 190 Humboldt 5 mi se Punta Enda; Lake Ridge at the Lake 579 Comment
  HSC8266  Quercus kelloggii Doris K. Kildale 1926-9-9 2682 Humboldt Low Gap of Mad River at Black Oaks 747 Comment
  JEPS37758  Quercus kelloggii W. L. Jepson 1903-6 2203 Humboldt Harris Ridge 1127 Comment
  UCR32153  Quercus kelloggii David J. Keil 1983-7-1 17274 Humboldt North Coast Range, Bull Creek Flats [Mattole] Road, c. 13 mi. west of junction with US Hwy 101 Comment
  HSC70635  Quercus sadleriana R. York 1980-5-18 601 Humboldt Near Black Mtn. 792 Comment
  HSC76362  Quercus sadleriana Teresa Prendusi 1981-7-9 197 Humboldt Near Cedar Camp. 1268 Comment
  HSC37839  Quercus vacciniifolia Thomas W. Nelson, Jane P. Nelson 1976-2-21 2245 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. W of Hoopa Comment
  JEPS5882  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1935-5-25 13882 Humboldt Dobbyn Creek; bed of dried-up pond 152 Comment
  RSA85287  Ranunculus flammula var. ovalis F. W. Peirson 1923-7-11 3726 Humboldt 7 miles N of Arcata. Comment
  HSC18212  Ranunculus flammula var. ovalis R. D. Modafferi 1965-5-13 71 Humboldt 2.3 mi. N of Trinidad on Trinity St. 305 Comment
  HSC28201  Ranunculus hebecarpus Thomas W. Nelson 1971-5-7 429 Humboldt Beside Hwy. 101 1.0 mi. S of Arcata Comment
  HSC18155  Ranunculus muricatus S. J. Roberts 1965-4-25 32 Humboldt 0.25 mi. E of Lanphere's bridge across old Mad River channel Comment
  HSC26783  Ranunculus occidentalis var. occidentalis Thomas W. Nelson 1971-5-31 451 Humboldt 915 Comment
  POM126167  Ranunculus orthorhynchus Joseph P. Tracy 1922-5-21 6050 Humboldt Fieldbrook. 61 Comment
Read comments
Oct 27 2009
  UC1196247  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1911-6-30 3273 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC98748  Ranunculus orthorhynchus var. platyphyllus Cara Witte 2007-7-20 560 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  UC1042328  Ranunculus parviflorus John Thomas Howell 1954-4-25 29153 Humboldt Arcata Comment
  UC1713273  Ranunculus pusillus Joseph P. Tracy 1919-5-31 5177 Humboldt opposite Willow Creek (shores of pond); Northern Coast Regions, Trinity River, Lack Pond 152 Comment
  HSC18109  Ranunculus repens var. repens S. R. Johnson 1965-3-28 33 Humboldt 1.0 mi. N of Luffenholtz Beach Comment
  HSC56305  Ranunculus uncinatus Overton, Butler 1979-8-2 12613 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS53819  Raphanus sativus Lincoln Constance 1934-5-27 707 Humboldt South Fork Eel River, s end of Dyerville Bridge South Fork Eel River; Bull Creek Region, South Fork Eel River 45 Comment
  UC598568  Rhamnus W. K. Fisher 1899-5-24 3 Humboldt Humboldt Bay Comment
  UC592714  Rhamnus californica subsp. californica Carl B. Wolf 1934-6-30 Humboldt back of Shelter Cove 60 Comment
  POM244260  Rhamnus purshiana Carl B. Wolf 1931-8-30 2373 Humboldt E side of Eureka on P st, on block N of Henderson Street. 30 Comment
  UC165823  Rhamnus purshiana Joseph P. Tracy 1909-7-31 3036 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC18569  Rhamnus purshiana Harley P. Chandler May 1901 1173 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  SEINET7716093  Rhododendron californicum Unknown Humboldt Humboldt Bay Comment
  HSC91899  Rhododendron columbianum Susan H. Bicknell 1987-9-1 Humboldt Patrick's Point State Park, Penn Creek campground Comment
  CAS-BOT-BC56615  Rhododendron macrophyllum Clarence R. Quick 1959-7-24 59 -24 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  UC1121090  Rhododendron macrophyllum A. E. Wieslander 1931-5-17 195 Humboldt Orick-Orleans Road Comment
  UC1537162  Rhododendron macrophyllum Gordon H. True Jr. 1936-5-12 474 Humboldt near Kneeland Post Office 762 Comment
  SBBG5560  Rhododendron occidentale H. and M. Dearing 1933-5-17 1244 Humboldt N of Big Lagoon Comment
  UC1121079  Rhododendron occidentale H. L. Person 1930-6-20 Humboldt Bayside Road e of Arcata; Bayside Road Comment
  HSC58162  Ribes binominatum G. L. Clifton, Griswold 1979-8-2 12226 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  CAS-BOT-BC92878  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  HSC100490  Ribes bracteosum Carl C. Marshall May 1886 194 Humboldt Near stream. Comment
  UC667077  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1939-4-27 16227 Humboldt Mouth Little River 6 Comment
  RSA152409  Ribes inerme Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond: in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  JEPS49357  Ribes lacustre W. L. Jepson 1902-7-15 2030 Humboldt Mud Spring to Trinity Summit 1524 Comment
  UC1198906  Ribes laxiflorum Joseph P. Tracy 1918-4-28 4890 Humboldt Northern Coast Ranges, Eureka, Ryan's Slough Ryan's Slough; Northern Coast Ranges, Eureka, Ryan's Slough 0 Comment
Read comments
Jan 25 2012
  UC183575  Ribes lobbii Joseph P. Tracy 1913-6-17 4189 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1676 Comment
  RSA0021132  Ribes lobbii Lincoln Constance, R. C. Rollins 1942-5-11 2864 Humboldt Near summit 8 miles east of Blue Lake. Comment
  HSC74200  Ribes marshallii M. A. Baker 1980-7-19 3033 Humboldt Near Bret Hole. 1814 Comment
  HSC97215  Ribes marshallii M. Mesler 2007-6-25 765 Humboldt Trail to Mill Creek Lakes 1585 Comment
  CAS-BOT-BC206031  Ribes menziesii L. R. Abrams; R. Bacigalupi 1922-6-25 8289 Humboldt North of Big Lagoon near Orick Comment
  CAS-BOT-BC206042  Ribes menziesii A. A. Heller 1924-7-24 s.n. Humboldt Near Humboldt County camp on the redwood highway 7 miles south of Trinidad Comment
  CAS-BOT-BC206044  Ribes menziesii Doris K. Kildale 1928-2-19 4272 Humboldt Patrick's Point Comment
  HSC20318  Ribes menziesii Larry Berti 1968-10-10 Humboldt Comment
  UC154122  Ribes menziesii J. P. Tracy 1904-7-31 2131 Humboldt immediate vicinity Eureka 0 Comment
  HSC70757  Ribes roezlii R. York 1980-5-17 526 Humboldt Near Le Perron Peak 792 Comment
  UCD39983  Ribes roezlii Rodney Gale Myatt 1971-9-21 1188 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  RSA0024753  Ribes roezlii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5594 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  CAS-BOT-BC198900  Ribes roezlii var. cruentum L. R. Abrams 1918-6-16 7198 Humboldt Willows Creek Comment
  HSC55321  Ribes roezlii var. cruentum Griswold, Butler 1979-7-10 7119 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  RSA0024581  Ribes roezlii var. cruentum Carl B. Wolf 1941-2-26 9965 Humboldt 1.4 miles below Weitchpec on road to Klamath River. 305 Comment
  UC1280968  Ribes sanguineum H. E. McMinn 1934-6-22 3713 Humboldt n Eureka; Sea Cliff Comment
  UC902087  Ribes sanguineum Joseph P. Tracy 1949-7-19 18380 Humboldt Grouse Mountain 1280 Comment
  HSC13252  Ribes sanguineum var. glutinosum D. E. Anderson 1962-1-12 1907 Humboldt Along road to Lanphere's Comment
  HSC93267  Ribes sanguineum var. glutinosum Gordon Leppig 1998-3-25 723 Humboldt McKinleyville, Central Ave. 43 Comment
  UC1127604 Image available Ribes sanguineum var. glutinosum R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quadrangle Comment
  UC1198912 Image available Ribes sanguineum var. glutinosum Joseph P. Tracy 1912-3-31 3563 Humboldt near mouth Lindsey Creek; Northern Coast Ranges 30 Comment
  RSA0018243  Ribes sanguineum var. glutinosum Elmer I. Applegate 1923-9-12 3991 Humboldt Stone Lagoon, south of Orick. Comment
  CAS-BOT-BC173990  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
  RSA0020899  Ribes viscosissimum John 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. 1372 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
  SEINET11803871  Rigiopappus leptocladus J. P. Tracy 1950-1 18996 Humboldt 2 mi S of Burr Valley on Albee Road 1158 Comment
  UC195067  Rigiopappus leptocladus Joseph P. Tracy 1916-6-19 4738 Humboldt near Alder Point; Northern Coast Ranges, Cahto Creek 152 Comment
  JEPS1245  Romanzoffia californica Joseph P. Tracy 1924-4-27 6645 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 457 Comment
  JEPS1252  Romanzoffia californica Joseph P. Tracy 1909-5-16 2970 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  JEPS2836 Image available Romanzoffia tracyi Joseph P. Tracy 1933-5-9 11008 Humboldt wet slide on bluff near Ocean; Northern Coast Region, Vicinity of Trinidad; Vicinity of Trinidad, Humboldt Co. 15 Comment
  CAS-BOT-BC74511  Rorippa curvisiliqua Henry M. Pollard 1946-8-10 s.n. Humboldt Klamath River, near Wilson Creek, Orleans region. Comment
  CAS-BOT-BC147436  Rosa californica L. R. Abrams 1918-6-16 7161 Humboldt Willow Creek Comment
  HSC32264  Rosa gymnocarpa J. O. Sawyer 1970-6-24 2249 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC32946  Rosa gymnocarpa Thomas W. Nelson, James Nelson 1973-5-28 957 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC99447  Rosa gymnocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 97 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  POM232034  Rosa gymnocarpa I. L. Wiggins 1930-7-22 4695 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  RSA166375  Rosa gymnocarpa Robert F. Thorne 1957-9-2 18999 Humboldt Burlington State Park, just S of Weott. Comment
  CAS-BOT-BC146527  Rosa gymnocarpa Volney Rattan 1883-6-1 s.n. Humboldt Trinity River below the Forks Comment
  HSC98692  Rosa gymnocarpa var. serpentina Cara Witte 2008-6-15 751 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1 mile north of intersection with 6N36A. 1428 Comment
  UC1927277  Rosa luciae Barbara Ertter with Tom Nelson and Dick Brummitt 2004-7-2 18404 Humboldt Eureka, at edge of 14th Street where road crosses large drainage (opposite 1404 14th St.) Comment
  UC667043  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-21 14994 Humboldt Iaqua 609 Comment
  CAS-BOT-BC148220  Rosa spithamea L. R. Abrams 1918-6-15 7102 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC133114  Rosaceae C. Hart Merriam 1921-8-19 s.n. Humboldt Big Lagoon Comment
  HSC99891  Rubus armeniacus Bill Wood 2011-8-19 Humboldt Eureka; corner of Myrtle Ave. and Bettie Lane Comment
  UC492165  Rubus lasiococcus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9021 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC148384  Rubus leucodermis Doris K. Kildale 1927-7-3 3662 Humboldt Willow Creek Flat 152 Comment
  UC1193204  Rubus leucodermis P. Zinke 1950-8-4 152 Humboldt two mi w Harris Post Office; Quad. 29D3, w of Harris Post Office 853 Comment
  UC1301224  Rubus spectabilis Paul C. Hutchison 1966-5-26 2741 Humboldt near U.S. highway 101 (Prairie Creek Redwood Grove State Park); Prairie Creek Redwood Grove State Park 50 Comment
  CDA26338  Rubus ursinus Gordon Leppig 1998-5-11 762 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  HSC100639  Rubus ursinus Carl C. Marshall Mar 1886 138 Humboldt Everywhere. Comment
  HSC31460  Rubus ursinus Steve Selva, Roger Jensen 1974-8-28 90 Humboldt Approx. 10 mi. S of Arcata on the sand dunes of the Samoa Peninsula Comment
  HSC90634  Rubus ursinus Gail Newton 1982-6-1 3571 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC96508  Rubus ursinus Gordon Leppig 1999-4-15 1115 Humboldt Big Lagoon County Park Comment
  HSC56448  Rudbeckia klamathensis Griswold, Butler 1979-7-12 7201 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CAS-BOT-BC363201  Rudbeckia occidentalis Doris K. Kildale 1925-8-15 1173 a Humboldt Elk Horn Prairie - Trinity Summit 1539 Comment
  BLMAR184  Rumex acetosella Donald Hazlett 1994-6-7 184 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC421933  Rumex acetosella Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC89469  Rumex acetosella P. A. Daly 1986-3-12 99 Humboldt Trinidad Head, along trail 61 Comment
  HSC73636  Rumex californicus M. A. Baker 1980-7-22 3128 Humboldt Near Grogan Hole. 1676 Comment
  UC1101197  Rumex conglomeratus Malcolm A. Nobs, S. Galen Smith 1949-8-9 1236 Humboldt pond on s side of the town of Blue Lake town of Blue Lake Comment
  CAS-BOT-BC421525  Rumex crassus Doris K. Kildale 1926-6-29 2242 Humboldt Mouth of Mad River Comment
  SEINET11946618  Rumex obtusifolius C. S. Kaut 2000-1 6 Humboldt Trinidad Comment
  CAS-BOT-BC454159  Ruppia maritima Robert F. Thorne; P. Everett 1965-8-7 35208 Humboldt Samoa Peninsula: Elev. c. near sea level Comment
  SEINET10937633  Salicornia virginica Mary Susan Taylor 1982-10-24 Taylor 5176 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  CAS-BOT-BC132708  Salix A. T. Whittemore 1980-3-15 80 -008 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CAS-BOT-BC129894  Salix bonplandiana Joseph P. Tracy; Harold E. Parks 1942-5-16 11568 Humboldt Vicinity of Garberville 152 Comment
  UC1173612  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14265 Humboldt meadows at Water Dog Lakes; Trinity Summit 1828 Comment
  UC481361  Salix exigua var. hindsiana Harold E. Parks 1931-5-14 958 Humboldt Fernbridge; lower Eel River 10 Comment
  UC490567  Salix exigua var. hindsiana Joseph P. Tracy 1932-6-14 10149 Humboldt at Willow Creek Trinity River valley; Northern Coast Ranges 152 Comment
  CAS-BOT-BC104114  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01248 Humboldt floodplain of Eel River at Fernbridge Comment
  CAS-BOT-BC106852  Salix hookeriana Harold E. Parks 1931-5-12 0952 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC106854  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01212 Humboldt 1 mile north of Samoa Comment
  HSC19953  Salix hookeriana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1246 Humboldt Van Duzen River at Blue Slide 91 Comment
  HSC40864  Salix hookeriana Linda M. Barker 1976-4-30 1415 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  JEPS12913  Salix hookeriana H. E. Parks and Joseph P. Tracy 1927-4-23 7922 Humboldt Big Lagoon; Northern Coast Ranges 6 Comment
  JEPS12929  Salix hookeriana Joseph P. Tracy 1931-4-4 9329 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  RSA183566  Salix hookeriana R. I. Bonn 1965-4-3 11 Humboldt Four miles west of Arcata on Lanphere Rd. Comment
  SD939  Salix hookeriana Harold E. Parks August 1931 1053 Humboldt Little River Lagoon Comment
  UC146207  Salix hookeriana J. P. Tracy 1905-4 2392 /2168 Humboldt Immediate vicinity of Eureka 0 Comment
  UC469124  Salix hookeriana Joseph P. Tracy 1929-4-7 8531 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC469126  Salix hookeriana Joseph P. Tracy 1931-8-23 9617 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470435  Salix hookeriana Joseph P. Tracy 1931-10-18 9742 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC470440  Salix hookeriana Joseph P. Tracy 1931-9-20 9685 Humboldt Trinidad Northern Coast Region 60 Comment
  UC481393  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Fortuna Eel River (banks of river) 10 Comment
  UC492338  Salix hookeriana Harold E. and Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon Trinidad (<same place> from which No. 01000...was taken in 1931) Comment
  UC512082  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1223 Humboldt 1 mi n Samoa (pine barrens near the coast) Comment
  UC526715  Salix hookeriana Joseph P. Tracy 1934-6-28 13267 Humboldt Salmon Creek Valley around Humboldt Bay Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley 9 Comment
  CDA39526  Salix hookeriana Gordon Leppig 2005-4-8 2203 Humboldt Humboldt Bay Dunes and Wetlands; North Spit, south end of Peninsula Drive. Comment
  UC490521  Salix laevigata Joseph P. Tracy 1932-4-23 9834 Humboldt 4 mi. s. Dyerville (S. Fork Eel R.); Northern Coast Ranges, S. Fork Eel R. 60 Comment
  HSC38185  Salix lasiandra Thomas W. Nelson, James Nelson 1976-3-5 3284 Humboldt Beside Salmon Creek, W of old Hwy. 101 at Beatrice Comment
  UC504058  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 2 Humboldt around Eureka Eureka Comment
  CAS-BOT-BC128192  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1932-5-12 1150 Humboldt In swamp near bridge at mouth of Maple Creek, Big Lagoon Comment
  JEPS13068  Salix lasiandra var. lasiandra Joseph P. Tracy 1921-3-27 5427 Humboldt Korbel; Northern Coast Ranges 30 Comment
  CAS-BOT-BC107608  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-17 1323 Humboldt On west slpe of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  CAS-BOT-BC107649  Salix lasiolepis Joseph P. Tracy 1933-5-14 12184 Humboldt Berry's Mt. on Trinity Highway 762 Comment
  JEPS13081  Salix lasiolepis Joseph P. Tracy 1939-8-5 16392 Humboldt Van Duzen River at Dinsmore's 737 Comment
  UC1173595  Salix lasiolepis Joseph P. Tracy 1935-4-5 13773 Humboldt along river near Blue Lake; Mad River 15 Comment
  UC1222297  Salix lasiolepis Joseph P. Tracy 1950-7-25 19049 Humboldt along Van Duzen R. opposite Buck Mt.; Van Duzen R. 762 Comment
  UC469425  Salix lasiolepis Joseph P. Tracy 1931-3-31 9328 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC490543  Salix lasiolepis Joseph P. Tracy 1932-5-10 9958 Humboldt near Petrolia; Northern Coast Ranges, Mattole River 15 Comment
  UC506399  Salix lasiolepis Joseph P. Tracy 1932-8-21 10359 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 Comment
  UC506507  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC519331  Salix lasiolepis Joseph P. Tracy 1933-10-8 13085 Humboldt Blue Slide, on Van Duzen River 91 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-BC125605  Salix melanopsis Harold E. Parks 1931-5-14 0965 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC125625  Salix melanopsis Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River, Alton to Fortuna 15 Comment
  CAS-BOT-BC125639  Salix melanopsis Harold E. Parks 1931-8-25 01060 Humboldt Blue Slide, Van Duzen River 90 Comment
  CAS-BOT-BC125640  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  JEPS14755  Salix melanopsis Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10095 Humboldt Trinity River near Willow Creek; North Coast Ranges 152 Comment
  JEPS14849  Salix melanopsis Lincoln Constance 1934-5-27 689 Humboldt s end of Dyerville Bridge (S. Fork Eel River); Bull Creek Region 45 Comment
  LA208934  Salix melanopsis Harold E. Parks; 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  SD922  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km south of Alton, flood plain of creek 20 Comment
  SD976  Salix melanopsis Harold E. Parks 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC198573  Salix melanopsis Joseph P. Tracy 1916-9-5 4776 Humboldt 4 mi. above mouth S. Fork Eel R.; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  UC481288 Image available Salix melanopsis Harold E. Parks 1931-5-14 962 Humboldt between Alton and Carlotta; Van Duzen River; Van Duzen River, Humboldt Co. 15 Comment
  UC481825  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC490577  Salix melanopsis C. R. Ball, H. E. Parks and Joseph P. Tracy 1932-5-17 10095 Humboldt Trinity R. near Willow Creek; North Coast Ranges, Trinity R. 152 Comment
  UC511989  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1245 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  CAS-BOT-BC129210  Salix piperi Doris K. Kildale 1929-2-28 6951 Humboldt Mad River at Essex Comment
  CAS-BOT-BC129175  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC20087  Salix scouleriana D. Sutherland, R. Spellenberg, A. Sylvester 1966-3-27 1359 Humboldt 1 mi. E of N Fork of the Mad River along Hwy. 299 Comment
  SBBG28832  Salix scouleriana H. E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay Comment
  UC506350  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC5092  Salix scouleriana C. C. Marshall 1888-1 Humboldt Comment
  POM220146  Salix sessilifolia H. E. Parks, Joseph P. Tracy 1931-5-17 967 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC128990  Salix sitchensis Doris K. Kildale 1926-3-28 1690 Humboldt Redmond Creek near Berry's 289 Comment
  CAS-BOT-BC128996  Salix sitchensis Joseph P. Tracy 1931-9-19 9683 Humboldt Alton, Van Duzen River 30 Comment
  UC1713724  Salix sitchensis Joseph P. Tracy 1905-11-5 2398 Humboldt immediate vicinity of Eureka 0 Comment
  UC481215  Salix sitchensis Harold E. Parks 1931-5-20 995 Humboldt Mad R. Blue Lake; , Blue Lake 15 Comment
  UC709434  Salix sitchensis Joseph P. Tracy 1941-8-27 17036 Humboldt forest near McKay camp; S. Fork Mt. 1676 Comment
  UC1225921  Salix tracyi Joseph P. Tracy 1942-4-26 17071 Humboldt near Blue Lake, along Mad River 15 Comment
  HSC79479  Sambucus racemosa var. racemosa Kenneth Clark 1980-3-27 562 Humboldt N fork of Dead Man's Gulch. 73 Comment
  UC28611  Sambucus racemosa var. racemosa J. P. Tracy 1899-5-1 296 Humboldt Eureka Comment
  UCD170574  Sambucus racemosa var. racemosa Gordon Leppig 1998-4-13 737 Humboldt Arcata, Anvick Rd. 12 Comment
  RSA86658  Sanguisorba officinalis subsp. microcephala F. W. Peirson 1941-7-28 13102 Humboldt About 10 miles below Patrick's Creek Camp Comment
  UC642286  Sanicula arctopoides Joseph P. Tracy 1927-6-8 8110 Humboldt Trinidad 3 Comment
  HSC39006  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1976-5-31 2648 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  SEINET12119553  Sanicula crassicaulis J. P. Tracy 1950-1 19023 Humboldt Sproston's Place, 3 mi S of Burr Valley 1067 Comment
  UC1197091  Sanicula graveolens Joseph P. Tracy 1932-7-13 10528 Humboldt Trinity Summit, at Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  HSC68994  Sanicula tracyi Jacqueline Greenleaf 1980-8-12 327 Humboldt Near Becker Cabin. 1143 Comment
  UC1368468  Sanicula tuberosa R. K. Gierisch and D. H. Esplin 1969-7-1 3531 Humboldt Six Rivers Forest/Experimental Area, Grouse Mt. Grouse Mt.; Six Rivers Forest/Experimental Area, Grouse Mt. 1584 Comment
  CDA20173  Sanicula tuberosa P. Haggard 2003-6-24 PDR 069700 Humboldt Northwestern California; Grouse Mountain. 0 Comment
  HSC36506  Sarcodes sanguinea Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1885 Humboldt Beside branch off FS Rd. 2S08 to Pine Mtn. Comment
  JEPS47544  Saxifraga mertensiana Joseph P. Tracy 1922-4-30 6009 Humboldt mouth of South Fork Trinity River (Martin Ranch); Northern Coast Ranges, , Martin Ranc 152 Comment
  POM266005  Saxifraga mertensiana Lincoln Constance, Reed C. Rollins 1942-5-11 2869 Humboldt 3 miles W of East Fork of Willow Creek. Comment
  HSC70985  Saxifragopsis fragarioides Gail Newton 1980-7-22 1657 Humboldt Near Devils Backbone 1554 Comment
  HSC26675  Scandix pecten-veneris Thomas W. Nelson 1971-5-9 431 Humboldt Hwy. 36 opposite Goat Rock, 2 mi. W of Bridgeville Comment
  HSC36132  Schoenoplectus americanus Rod Blacker 1974-5-15 741505 .5 Humboldt Near margin of Humboldt Bay at Arcata oxidation pond Comment
  POM126085  Schoenoplectus maritimus Joseph P. Tracy 1924-9-28 6907 Humboldt Centerville, northern coast ranges 3 Comment
  UC668011  Scirpus cernuus Joseph P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  UC213328  Scirpus cernuus Joseph P. Tracy 1920-6-6 5336 Humboldt along Freshwater Creek (around Humboldt Bay); Northern Coast Ranges, Humboldt Bay, Freshwater Creek 30 Comment
  UC668009  Scirpus microcarpus Joseph P. Tracy 1933-7-25 12860 Humboldt Grouse Mountain 1524 Comment
  BLMAR463  Scirpus microcarpus Jennifer Anthony-Wheeler 2007-8-9 463 Humboldt Samoa Peninsula, growing on Lanphere road 12 Comment
  JEPS63972  Scirpus microcarpus Lincoln Constance 1934-6-2 782 Humboldt wet sand below spring on s bank near mouth Bull Cr (Bull Creek Region, South Fork Eel River); Bull Creek Region, South Fork Eel River, s bank Bull Cr Comment
  RSA167281  Scirpus microcarpus Joseph P. Tracy 1949-9-1 18533 Humboldt Trinity River Valley, at Willow Creek: Dusky s Spring 152 Comment
  UC1222484  Scirpus microcarpus Joseph P. Tracy 1949-9-1 18533 Humboldt Dusky's Spring Trinity River Valley, at Willow Creek, at Dusky's Spring (Willow Creek, Trinity River Valley) 152 Comment
  HSC15632  Scoliopus bigelovii F. B. Plett 1963-4-24 30 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  CDA39390  Scoliopus bigelovii Q. L. Holdeman 1963-2-2 s.n. Humboldt West side of Highway 101, just north of Redcrest. 0 Comment
  HSC100562  Scoliopus bigelovii Carl C. Marshall Feb 1886 149 Humboldt Woods near coast. Comment
  SEINET12050513  Scoliopus bigelovii F. H. Utech 1988-1 88 -027 Humboldt 16.6 mi E on CA 36 from junction US 101 near junction of Grizzly Creek & Van Duzen River on CA 36 110 Comment
  SEINET926248  Scoliopus bigelovii Joseph P. Tracy 1950-1 18611 Humboldt 1 mile west of Dinsmore's. Along Van Duzen River, opposite Buck Mountain. 762 Comment
  UCD19970  Scoliopus bigelovii C. H. Lamoureux; R. Gankin 1956-3-17 1043 Humboldt South boundary of Jenson Cove, between Meyers and Miranda on Hwy 101. Comment
  UCSB15626  Scrophularia californica Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  RSA246671  Scrophularia californica var. californica Robert F. Thorne, Percy C. Everett 1965-8-9 35314 Humboldt Clam Beach County Park. 3 Comment
  HSC100509  Scutellaria angustifolia Carl C. Marshall Jun 1885 90 Humboldt Mountain ridges. Comment
  HSC98088  Scutellaria antirrhinoides Cara Witte 2007-7-11 481 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  UC154009  Scutellaria antirrhinoides Joseph P. Tracy 1909-7-31 3031 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  BLMAR588  Scutellaria antirrhinoides Jennifer Wheeler 2010-7-13 588 Humboldt King range, Panther Gap Road 792 Comment
  RSA445331  Scutellaria siphocampyloides Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  HSC63212  Sedum laxum subsp. heckneri M. A. Baker 1979-7-6 1015 Humboldt W slope of Rattlesnake Creek Ridge overlooking Red Cap Creek, outcrop and road cut of FS Rd. 10N01 Comment
  HSC79346  Sedum laxum subsp. heckneri D. K. Imper 1983-6-17 Humboldt 1 mi. S of Cedar Camp (road to Mosquito Lake), on FS Rd. 12N12, also located along FS Rd. 12N12 4 mi. N 1159 Comment
  HSC32276  Sedum obtusatum subsp. retusum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5627 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC205171  Sedum spathulifolium Harley P. Chandler June, 1901 1379 b Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  RSA0081470  Sedum spathulifolium Dave Kelly, W. Wisura 1986-7-27 4130 Humboldt 13.2 miles E of Bridgeville, along Hwy 36. Comment
  HSC28237  Sedum spathulifolium var. pruinosum Clifton Raymond Chesbrough 1973-6-19 100 Humboldt 0.5 mi. N of College Cove along coast Comment
  UCD135986  Selaginella kraussiana Frederic Hrusa; R. Bencie, L. Bencie, C. and E. Dogwin 2010-12-29 18277 Humboldt Forest E of Humboldt St. University; above Fern Lake. 47 Comment
  CAS-BOT-BC62180  Selaginella oregana Doris K. Kildale 1926-1-24 1492 Humboldt Kneeland Prairie summit 853 Comment
  UC519317  Selaginella oregana Joseph P. Tracy 1933-2-19 10903 Humboldt above Korbel (N. Fork Mad River); North Coast Ranges 60 Comment
  CDA19897  Senecio cineraria P. Haggard 2002-7-1 PDR P 070939 Humboldt Northern California; on Hwy 36 near Carlotta. 0 Comment
  HSC33721  Senecio elegans B. Sullivan 1975-5-24 106 Humboldt Off Samoa Blvd. across from the boat landing Comment
  UC1199241  Senecio integerrimus var. major Joseph P. Tracy 1938-5-1 15728 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC364017  Senecio integerrimus var. major Alice Eastwood; John Thomas Howell 1937-6-23 4840 Humboldt 9 miles from Kneeland on road to Yager Comment
  UC1223148  Senecio integerrimus var. major Joseph P. Tracy 1951-5-26 19509 Humboldt opposite Willow Creek; Trinity River Comment
  CDA7631  Senecio jacobaea E. Eberwein 1958-9-4 1197 -58 Humboldt William Lowry property, Bear River, Ferndale. 0 Comment
  UCD135609  Senecio minimus John M. Tucker 1948-9-4 1863 Humboldt Beck's Ranch, Hydesville. Comment
  UCSB6689  Senecio sylvaticus Keator, Glenn 1958-6-18 Humboldt Near Ettersburg Comment
  POM174068  Senecio vulgaris Joseph P. Tracy 1918-4-21 4884 Humboldt Eureka. 0 Comment
  MACF015653  Sequoia sempervirens F. A. MacFadden 1935-6-22 13644 Humboldt Richardson's Grove, Humboldt California Comment
  NY64456  Sequoia sempervirens W. L. C. Muenscher 1939-4-15 15056 Humboldt Blair Grove, near Dyersville Comment
  UCD19960  Sequoia sempervirens C. H. Lamoureux; R. Gankin 1956-3-17 1044 Humboldt Southern boundary of Jensen Grove, between Meyers and Miranda on Hwy 101. Comment
  SEINET11802379  Sericocarpus rigidus J. P. Tracy 1950-1 19378 Humboldt about 3 mi SW of Orleans Comment
  UC169027  Sherardia arvensis Joseph P. Tracy 1906-5-6 2446 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC92497  Sherardia arvensis W. L. Jepson 1934-5-7 Humboldt Buckeye Praire, Bull Creek Comment
  UC1222508  Sidalcea diploscypha Joseph P. Tracy 1950-6-23 18871 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); , ne of Alderpoint 213 Comment
  HSC16013  Sidalcea malachroides E. W. Styskel 1963-5-16 29 Humboldt 3 mi. SE of Korbel, Snow Camp Rd. 290 Comment
  UC1197963  Sidalcea malachroides Joseph P. Tracy 1936-8-1 15061 Humboldt 6 mi se Korbel (Canyon Creek); , se of Korbel 304 Comment
  UC18696  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  UC35225  Sidalcea malachroides Chestnut and Drew 1888-7-8 Humboldt near Arcata; near Arcata Comment
  SEINET11982176  Sidalcea malachroides J. P. Tracy 1950-1 19034 Humboldt on Butter Valley Rd, 2 mi E of Cameron Hill Jct near Kneeland Comment
  RSA46857  Sidalcea malviflora subsp. patula Doris K. Kildale 1927-7-1 3624 Humboldt Alton Hill Comment
  UC146163  Sidalcea malviflora subsp. patula J. P. Tracy 1905-6-11 2194 Humboldt immediate vicinity Eureka (at Buckport); immediate vicinity of Eureka, at Bucksport 0 Comment
  CAS-BOT-BC205761  Sidalcea oregana David Imper 1985-8-1 s.n. Humboldt Six Rivers National Forest. Approximately 1/2 mile west of Ladder Rock alongside trail 1371 Comment
  CAS-BOT-BC213157  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-7-16 15432 Humboldt Dow's Prairie 60 Comment
  UC1197968  Sidalcea oregana subsp. eximia Joseph P. Tracy 1932-9-16 10800 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  HSC57879  Sidalcea oregana subsp. spicata Overton, Butler 1979-7-31 11416 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC103269  Silene John McRae 2014-5-16 Humboldt Six Rivers National Forest, Hennessy Peak Quad, south of Grouse Creek on Rd. 6N20. 945 Comment
  UCR123953  Silene californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6965 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  POM286441  Silene californica Lyman Benson 1928-7-10 427 Humboldt Fortuna; River: Eel, mouth. 30 Comment
  CHSC110703  Silene campanulata subsp. campanulata Dean Wm. Taylor 2004-6-24 19130 Humboldt North Coast Range, Horse Mountain, along Titlow Hill road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  CAS-BOT-BC174877  Silene campanulata subsp. glandulosa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CHSC19501  Silene gallica W. D. Stevens 1967-7-22 53 Humboldt Above the dirt road from old Hwy 101 to the top of the north bank of the Mad River. Comment
  HSC68115  Silene gallica J. P. Smith 1973-5-26 6869 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA29073  Silene hookeri subsp. bolanderi Lincoln Constance, A. A. Beetle 1940-5-17 2612 Humboldt Edge of Quercus Garryana grove, rocky knolls on N slope. McClellan Mtn, near Eureka 823 Comment
  CAS-BOT-BC389069  Silene laciniata subsp. californica W. R. Dudley 1899-6-20 s.n. Humboldt South Fork of Eel River Comment
  CAS-BOT-BC389053  Silene laciniata subsp. californica Doris K. Kildale 1926-3-22 1686 Humboldt Fleener Creek Comment
  CAS-BOT-BC75284  Sisymbrium officinale Kenneth Clark 1980-5-10 639 Humboldt Shelter Cove. Dead Man's Gulch. 15 Comment
  HSC49362  Sisyrinchium bellum R. York 1979-4-13 219 Humboldt Just N of College Cove, 1 mi. N of Trinidad Comment
  UC1103495  Smilacina racemosa Joseph P. Tracy 1941-4-26 16863 Humboldt Kneeland Prairie 762 Comment
  UC1134655  Smilacina racemosa R. Stahelin 1933-5-15 L.H. 23 Humboldt Freshwater Eureka Quadrangle (T.P.L. Co.) Comment
  UC666973  Smilacina racemosa Joseph P. Tracy 1938-6-13 15908 Humboldt Horse Mountain 1432 Comment
  HSC59399  Solanum nigrum Rick Lundquist 1979-5-18 97 Humboldt Clam Beach Ponds 0 Comment
  HSC38086  Solanum parishii Thomas W. Nelson, James Nelson 1976-5-30 2607 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC59024  Solanum parishii M. A. Baker 1979-6-7 784 Humboldt N bank of road to Snow Mtn. 610 Comment
  JEPS12110  Solanum physalifolium var. nitidibaccatum Joseph P. Tracy 1940-9-28 16738 Humboldt Eureka 30 Comment
  SEINET10872207  Solidago Mary Susan Taylor 1990-8-22 Taylor 6079 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  POM247118  Solidago californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC57886  Solidago elongata Overton, Butler 1979-7-31 11437 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CHSC109579  Solidago spathulata B. Castro; L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site: on other side of South Spit Road from the Humboldt Bay mudflats. 2 Comment
  UC249853  Solidago spathulata Joseph P. Tracy 1924-9-21 6901 Humboldt around Humboldt Bay (Eureka); Northern Coast Region, around Humboldt Bay, Eureka 15 Comment
  SEINET11383162 Image available Solidago spathulata S. K. Harris 1939-1 990 Humboldt At Samoa. Comment
  CAS-BOT-BC364970  Solidago velutina subsp. californica Carl B. Wolf 1927-8-29 1198 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, Mt. Glen Comment
  HSC57108  Sonchus asper Overton, Butler 1979-7-25 9846 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC1070277  Sonchus oleraceus H. L. Person 1932-7-16 19437 Humboldt Highway n Trinidad; Rock Point Quad. Comment
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Aug 3 2007
  HSC56092  Sorbus scopulina G. L. Clifton, Griswold 1979-7-31 11786 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC97205  Sorbus scopulina Kiera A. Freeman, Heather J. Perry 2007-6-13 7 Humboldt 1.3 mi. E of NF1 on FS 5N04 1585 Comment
  HSC97446  Sparganium emersum Ivy Watson 2008-10-5 35 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  HSC10995  Spartina densiflora T. L. Ackerman 1964-5-10 46 Humboldt Across US 101 from Murray Field, Humboldt Bay Comment
  HSC37941  Spergula arvensis Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  HSC79185  Spergula arvensis L. P. Janeway 1984-2-4 710 Humboldt Along Bayside Rd. NW of Jacoby Creek School 18 Comment
  POM274921  Spiraea douglasii Lyman D. Benson 1929-7-15 1822 Humboldt Fortuna Bog near the sea. Comment
  SBBG3128  Spiraea douglasii M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  UC1196396  Spiranthes romanzoffiana Joseph P. Tracy 1911-8-27 3537 Humboldt Eureka Northern Coast Region 0 Comment
  HSC27782  Spiranthes romanzoffiana J. D. Ackerman, A. Montalvo 1973-7-30 112 Humboldt Hwy. 101 between Arcata and Eureka, at Indianola Cutoff 3 Comment
  HSC28141  Spiranthes romanzoffiana J. D. Ackerman 1973-8-29 119 Humboldt Big Lagoon Beach Co. Park, 8 mi. N of Trinidad Comment
  UC146132  Spirodela polyrhiza Joseph P. Tracy 1908-6 2745 Humboldt nw slope Buck Mountain (pond above mouth of Little Van Duzen); Northern Coast Ranges 457 Comment
  JEPS63051  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC175781  Stachys ajugoides var. rigida Joseph P. Tracy 1912-7-27 3881 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC577313  Stachys ajugoides var. rigida Joseph P. Tracy 1935-7-18 14102 Humboldt Table Bluff 15 Comment
  UCLA71124  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park Comment
  UC538019  Stachys arvensis Lyle W. Smith 1934-11-14 Humboldt Arcata Comment
  BLMAR186  Stachys bergii Donald Hazlett 1994-6-7 186 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC12371  Stachys chamissonis Steve Dorei 1970-10-14 99 Humboldt Big Lagoon Comment
  SEINET12273953  Stachys rigida var. quercetorum J. P. Tracy 1950-1 18742 Humboldt at crossing of Bear River, near Petrolia, hills between town & Ocean 30 Comment
  HSC40302  Stellaria media Linda M. Barker 1976-4-30 1396 Humboldt 3 mi. W of Arcata Comment
  HSC75438  Stellaria media J. O. Sawyer 1980-7-18 3580 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC70500  Stenanthium occidentale Gail Newton 1980-7-20 1618 Humboldt Near Bell Swamps 1426 Comment
  HSC103125  Stenanthium occidentale M. Mesler, Robin Bencie 2009-7-7 808 Humboldt Big Hill Rd, near Domingo Creek. 1367 Comment
  RSA254758  Stephanomeria virgata Thomas W. Nelson 1973-9-3 1122 Humboldt McKeown Ranch north of Dinsmore Comment
  CAS-BOT-BC375782  Stephanomeria virgata Milo S. Baker 1927-8-14 2434 b Humboldt Near summit of ridge West of Bull Creek Comment
  HSC58417  Stipa lemmonii Griswold, Butler 1979-7-12 7219 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  BLMAR48  Stipa pulchra Brad Barr June, 1982 48 Humboldt King range, ridgetop above Randall Creek and Spanish Flat Comment
  HSC57893  Streptanthus tortuosus var. tortuosus Walter Overton, Marvin Butler 1979-7-31 11468 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UCSB25555  Streptopus amplexifolius Keefe, Joseph 1967-7-9 Humboldt Fern Canyon, south edge of Prairie Creek State Park 3 Comment
  HSC99624  Symphoricarpos albus var. laevigatus Thomas W. Nelson, James Nelson 1975-9-3 2196 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  BLMAR272  Symphoricarpos mollis Jennifer Anthony-Wheeler 1999-7-30 272 Humboldt Lacks Creek, growing along ridgees, slopes, open places 1219 Comment
  HSC58128  Symphoricarpos mollis Gilbert Muth 1979-8-1 12121 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC58831  Symphyotrichum bracteolatum Overton, Butler 1979-8-2 12678 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC99163  Symphyotrichum chilense Carl B. Wolf 1927-8-22 808 Humboldt Along the hills near teh ocean 1 mile south of Orick. Comment
  UC198639  Symphytum asperum Joseph P. Tracy 1916-4-30 4679 Humboldt around Humboldt Bay (Salmon Creek near barnyard); Northern Coast Ranges, , Salmon Creek 30 Comment
  RSA168800  Symphytum asperum Joseph P. Tracy 1943-10-3 17448 Humboldt Near Iverson dairy ranch, Arcata. Comment
  UC1198056  Synthyris reniformis Joseph P. Tracy 1933-5-9 12162 Humboldt vicinity of Trinidad; Northern Coast Region 15 Comment
  UC582545  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 Humboldt East Fork of Willow Creek Canyon]; Northern Coast Ranges 457 Comment
  CAS-BOT-BC376728  Tanacetum bipinnatum Peter H. Raven 1962-8-31 18078 Humboldt 1.2 miles south of Orrick [Orick] Comment
  CAS-BOT-BC376730  Tanacetum bipinnatum Peter H. Raven 1962-8-31 18079 Humboldt Flats at Dry Lagoon State Park Comment
  UC1199290  Tanacetum camphoratum J. P. Tracy 1901-8-7 1269 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach 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
  HSC59852  Tauschia kelloggii M. A. Baker 1979-7-6 1007 Humboldt Just past the 4 mi. marker on Eyesee Rd. from Hwy. 96 Comment
  HSC20426  Tellima grandiflora D. E. Anderson 1965-5-8 3629 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  HSC55865  Tellima grandiflora G. L. Clifton, Griswold 1979-7-25 10885 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC63223  Tellima grandiflora M. A. Baker 1978-5-6 511 Humboldt 2 km. S of Weitchpec Comment
  HSC93510  Tellima grandiflora Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 745 Humboldt Hwy. 101 road cut overlooking Big Lagoon 40 Comment
  UC1196943  Tetrapteron graciliflorum Joseph P. Tracy 1902-6-3 1673 Humboldt near Fruitland; Northern Coast Ranges 609 Comment
  HSC1186  Thelypteris nevadensis J. P. Tracy 1937-7-25 15556 Humboldt Happy Camp Mtn., Trinity Summit Range, NE of Hawkins Bar 1280 Comment
  UC1225806  Thelypteris nevadensis Joseph P. Tracy 1948-9-5 18171 Humboldt Happy Camp Mt.; Trinity Summit Range 1219 Comment
  UC673059  Thermopsis gracilis Joseph P. Tracy 1933-8-6 12955 Humboldt French Camp Ridge 1066 Comment
  HSC64140  Thermopsis macrophylla J. O. Sawyer, J. P. Smith, J. Cole 1977-7-2 3050 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  UC302045  Thlaspi californicum Joseph P. Tracy 1926-5-15 7484 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC10967  Thlaspi montanum var. montanum Harley P. Chandler June, 1901 1377 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 182 Comment
  NY17200  Thuja plicata I. L. Wiggins 1955-7-31 13594 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA47094  Thuja plicata Doris K. Kildale 1926-8-28 2566 Humboldt Morrison gulch - Bear River ridge 412 Comment
  HSC98805  Tiarella trifoliata var. unifoliata Cara Witte 2008-8-5 994 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  CAS-BOT-BC436906  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-1 82 Humboldt Near Wilder's Comment
  HSC43174  Tiarella trifoliata var. unifoliata R. Sutherland 1976-8-13 13 .13876 Humboldt Whittemore Grove. 91 Comment
  UC1197833  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1934-8-29 13628 Humboldt at McKay Camp South Fork Mountain 1676 Comment
  UC858947  Tolmiea diplomenziesii Eliz. Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  UC11947  Tolmiea diplomenziesii W. C. Blasdale Jun 1899 5887 Humboldt Weitchpec North Coast Ranges, Klamath River (on the Klamath River, opposite the mouth of the Trinity) Comment
  SEINET12221295  Tolmiea menziesii H. P. Chandler 1901-1 1268 Humboldt North Coast Ranges 457 Comment
  HSC75412  Torilis arvensis J. O. Sawyer, M. A. Ericksen 1980-7-7 3574 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  SD51325  Torilis arvensis Darley F. Howe 1961-7-31 3100 Humboldt 6 miles south of Garbverville on Highway 101. 99 Comment
  BLMAR228  Torilis arvensis Jennifer Anthony-Wheeler 1996-7-11 228 Humboldt N.Dobbyn creek, growing in understory of mixed evergreen forest 1005 Comment
  CAS-BOT-BC169175  Toxicodendron diversilobum Volney Rattan 1878-1-1 s.n. Humboldt Undspecified Comment
  UC1225747  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1948-9-5 18169 Humboldt Trinity Summit Range, at Happy Camp Mountain Happy Camp Mountain; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  BLMAR387  Triantha occidentalis Jennifer Anthony-Wheeler 2004-7-1 387 Humboldt Horse Mtn, mixed conifer in serp.seep Comment
  CAS-BOT-BC517421  Triantha occidentalis subsp. occidentalis Joseph P. Tracy 1914-9-6 4606 Humboldt Northern Coast Ranges, Bald Mountain between High Prairie and Snow Camp, near Seidell Ranch 1219 Comment
  SEINET8999606 Image available Trichostema lanceolatum Unknown 1934-8-19 13595 Humboldt TRINITY RIVER VALLEY, at Willow Creek 152 Comment
  UC198890  Trichostema laxum Chestnut and Drew Humboldt Kneeland Prairie Comment
  UC484155  Trichostema laxum E. R. Johnson Aug 1929 Humboldt along the Eel River Comment
  JEPS43082  Trientalis latifolia Joseph P. Tracy 1926-5-22 7509 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  SEINET11996902  Trientalis latifolia F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -283 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC1223386  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1936-5-29 14819 Humboldt French Camp Comment
  UC495667  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-17 10094 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  CHSC84526  Trifolium arvense John Dittes; Josephine Guardino 2003-6-7 2003 -65 Humboldt Klamath Range; ca. 7.7 air-mile southwest of Orleans, ca. 4.1 air-miles northeast of confluence of Trinity River and Klamath River, ca. 0.3, air-mile northwest of confluence of Klamath River and Aikens Creek. Along entrance road to Aikens Creek Campground. 106 Comment
  RSA170210  Trifolium arvense Joseph P. Tracy 1941-7-26 16970 Humboldt Eureka (G Street near 9th) Comment
  UC1103436  Trifolium barbigerum J. P. Tracy 1901-4-24 1037 Humboldt immediate vicinity Eureka 0 Comment
  UC162829  Trifolium barbigerum J. P. Tracy 1909-5-2 2964 Humboldt immediate vicinity Eureka 0 Comment
  HSC45120  Trifolium bifidum R. Sutherland 1978-5-27 1 .27578 Humboldt Whitehorn 311 Comment
  UC1223496  Trifolium bifidum var. bifidum Joseph P. Tracy 1935-5-25 13903 Humboldt betw forks of creek; Dobbyn Creek Comment
  UC1223501  Trifolium bifidum var. decipiens Joseph P. Tracy 1950-6-8 18744 Humboldt 1 mi e Cape Mendocino (Cape Ridge, roadside near top of ridge) 152 Comment
  UC495643  Trifolium bifidum var. decipiens Joseph P. Tracy 1927-6-18 8186 Humboldt betw Petrolia and the ocean (hills); Northern Coast Ranges 152 Comment
  HSC71469  Trifolium breweri J. P. Smith, J. O. Sawyer 1973-5-12 6675 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  UC1197204  Trifolium ciliolatum Joseph P. Tracy 1911-7-11 3510 Humboldt Hoopa Valley Northern Coast Ranges 152 Comment
  RSA249399  Trifolium cyathiferum D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-17 5705 Humboldt McKeown Ranch north of Dinsmore Comment
  UC1542872  Trifolium dubium Harold E. Parks May 1934 4324 Humboldt Spruce Cove Trinidad Comment
  RSA195478  Trifolium dubium C. R. Gunn 1963-6-2 2694 Humboldt Two miles SE of Arcata Comment
  HSC98508  Trifolium eriocephalum subsp. eriocephalum Cara Witte 2007-6-7 225 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  UC1223464  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1949-8-4 18415 Humboldt toward Trinity Summit (Mud Springs, on rd from Hoopa) 1341 Comment
  SEINET12147891  Trifolium fragiferum J. P. Tracy 1933-1 12986 Humboldt 1 mi W of Loleta Comment
  UCD108946  Trifolium fragiferum P. B. Kennedy 1929-6-14 10326 Humboldt Eureka. Niles Ranch. Comment
  HSC2113  Trifolium fucatum C. B. Wolf 1927-8-30 1236 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  SDSU5278  Trifolium fucatum D. F. Howe 1962-5-22 3308 Humboldt 0.7 miles east of Orick on Bald Hill road. 396 Comment
  UCD111199  Trifolium hirtum B. L. Kay 1955-6-2 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  UC16569  Trifolium hybridum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5601 Humboldt Arcata Comment
  HSC100251  Trifolium incarnatum J. P. Smith, & J. O. Sawyer 2010-5-2 12808 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  HSC58651  Trifolium longipes G. L. Clifton, Griswold 1979-7-31 11709 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1197209  Trifolium longipes subsp. hansenii Joseph P. Tracy 1930-7-6 8837 Humboldt Northern Coast Ranges. Kneeland Prairie same place as #8721. 762 Comment
  HSC40537  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1976-5-23 2527 Humboldt In the Canyon of Bear Creek, W of Black Lassic 1524 Comment
  HSC99726  Trifolium longipes subsp. oreganum Glenn W. K. Shelton 2010-7-16 20 Humboldt Titlow Hill Rd., turnout on right 0.9 mi. S of Cold Springs, 0.2 mi. down road from Titlow Hill Rd. 1421 Comment
  SBBG3831  Trifolium macraei H. and M. Dearing 1939-5-25 3441 Humboldt near Samoa Comment
  HSC38084  Trifolium microcephalum Thomas W. Nelson, Jane P. Nelson 1976-5-30 2606 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS65965  Trifolium microcephalum W. L. Jepson 1902-6-20 1898 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC1197551  Trifolium microdon Joseph P. Tracy 1932-5-1 9892 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  POM20264  Trifolium microdon L. R. Abrams 1916-6-11 6037 Humboldt Mouth of Grizzly Creed on Van Duzon River. Comment
  SEINET12157235  Trifolium microdon J. P. Tracy 1936-1 14840 Humboldt nr Samoa, on Humboldt Bay 6 Comment
  UC1197486  Trifolium obtusiflorum Joseph P. Tracy 1927-5-30 8092 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC1130106  Trifolium obtusiflorum H. S. Yates 1936-6-23 5871 Humboldt 3 mi ne Scotia; Rohnerville Quad. Comment
  UC162783  Trifolium pratense J. P. Tracy 1909-6-6 2987 Humboldt immediate vicinity Eureka 0 Comment
  SEINET4206955  Trifolium variegatum Carol Gunn 1963-6-3 2701 Humboldt 1/2 mile south of Korbel on gravel road. In ditch along South Mad River.; 0 Comment
  CDA28058  Trifolium variegatum var. major T. C. Fuller 1958-6-17 614 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  UC1223321  Trifolium variegatum var. melananthum Joseph P. Tracy 1935-5-25 13861 Humboldt Fort Seward 106 Comment
  UC1223533  Trifolium variegatum var. melananthum Joseph P. Tracy 1950-6-18 18845 Humboldt s Cape Mendocino (Davis Creek, on the beach) Comment
  UC495677  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8573 Humboldt along South Fork of Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC594251  Trifolium variegatum var. variegatum S. K. Harris, J. P. Tracy and H. S. Yates 1936-6-17 3426 Humboldt nw slopes nw slopes of Buck Mtn 822 Comment
  JEPS4396  Trifolium willdenovii Joseph P. Tracy 1927-6-12 8169 Humboldt lower slopes Horse Mtn; Northern Coast Ranges 914 Comment
  UC1197522  Trifolium willdenovii Joseph P. Tracy 1914-7-5 4557 Humboldt High Prairie Northern Coast Ranges, Bald Mtn 1066 Comment
  HSC40959  Trifolium wormskioldii Linda M. Barker 1976-6-1 1547 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC46954  Trifolium wormskioldii J. P. Smith, T. Nelson 1977-6-30 9207 Humboldt Samoa Peninsula just E of the drag strip. Comment
  UC160991  Trifolium wormskioldii Joseph P. Tracy 1911-6-25 3246 Humboldt Eureka Northern Coast Region 0 Comment
  RSA181629  Trifolium wormskioldii Doris K. Niles 1950-6-1 8 Humboldt Island in Eel River, Niles field. Comment
  SEINET12156843  Trifolium wormskioldii J. P. Tracy 1938-1 16056 Humboldt Field's Landing, 2 mi S of town 6 Comment
  UC725901  Trifolium wormskioldii A. A. Heller 1937-6-11 15891 Humboldt n Trinidad (Big Lagoon on US Hwy 101) 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
  CAS-BOT-BC451808  Triglochin maritima Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  HSC100504  Triglochin maritima Carl C. Marshall Jul 1886 230 Humboldt Salt marshes, etc. Comment
  HSC77399  Triglochin maritima L. P. Janeway 1983-5-19 298 Humboldt W edge of Arcata Bay, 0.5 mi. N of Eureka-Samoa bridge 3 Comment
  HSC101807  Trillium albidum Kjirsten A. Wayman 2012-4-1 305 Humboldt Hoopa, 0.3 miles up Bair Road, near Supply Creek 168 Comment
  CAS-BOT-BC133399  Trillium ovatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CHSC62019  Trillium ovatum J. R. Biddison 1993-4-7 13 Humboldt Phillipsville, Avenue of the Giants, w side of road, 1 mi s of hwy 101 junction. 45 Comment
  HSC15699  Trillium ovatum D. E. Anderson 1962-2-23 1923 Humboldt Grove E of HSC campus Comment
  HSC48827  Trillium ovatum Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 27 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC1541275  Trillium ovatum W. K. Parks July 1933 Humboldt S. Fork Mountain Comment
  SEINET12050390  Trillium ovatum F. H. Utech 1988-1 88 -020 Humboldt 3.5 mi N of Phillipsville & 1.5 mi S of Miranda along alternative US 101, Avenue of the Giants 85 Comment
  UC176190  Trillium ovatum Joseph P. Tracy 1913-4-13 4034 Humboldt at Eureka Eureka; Northern Coast Region 0 Comment
  SEINET10458960  Triodanis biflora Chandler CHANDLER 1514 B Humboldt SOMES BAR Comment
  JEPS11782  Triodanis perfoliata Milo S. Baker 1923-6-20 42 Humboldt headwaters of Yager Creek Comment
Read comments
Jan 2 2016
  SEINET10459891  Triodanis perfoliata Tracy TRACY 2197 Humboldt EUREKA Comment
  UC169061  Triodanis perfoliata Harley P. Chandler 1901-6-16 1514 Humboldt Somes Bar North Coast Ranges, Klamath River (Klamath River) 426 Comment
  UC1198034  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1921-4-24 5473 Humboldt facing South Fork of Eel River Phillipsville; Northern Coast Ranges, facing South Fork of Eel River 121 Comment
  JEPS10699  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1944-5-14 17465 Humboldt near Eureka Bucksport; at Bucksport 6 Comment
  CHSC31269  Triphysaria eriantha subsp. rosea Mark Stopher 1980-4-2 45 Humboldt In sand dunes on Samoa Oeninsula near Humboldt Bay. 4 Comment
  JEPS10422  Triphysaria eriantha subsp. rosea Joseph P. Tracy 1941-4-3 Humboldt Samoa , Samoa (Humboldt Bay) Comment
  UC168994  Triphysaria pusilla Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5390 Humboldt Hubbard's Station; North Coast Ranges, Hubbard's Station Comment
  HSC70581  Triphysaria pusilla Sue Sweet 1981-4-30 549 Humboldt Lanphere-Christensen Dunes Preserve, along trail N of weather station Comment
  UC27277  Triphysaria pusilla C. E. Spear April, 1898 Humboldt Waddington Comment
  UC1222437  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1942-5-29 17088 Humboldt Eureka 6 Comment
  UCD123426  Triphysaria versicolor subsp. versicolor Linda M. Barker 1976-4-13 1424 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC199623  Trisetum canescens H. E. Parks; Joseph P. Tracy 1934-6-27 11074 Humboldt Grouse Mt. 1432 Comment
  POM118380  Trisetum canescens Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC552772  Trisetum canescens Joseph P. Tracy 1934-6-27 11074 Humboldt Grouse Mt.; Northern Coast Ranges 1432 Comment
  HSC13416  Trisetum cernuum J. A. Waller 1965-5-16 39 Humboldt Open field near Big Lagoon. Comment
  SEINET200948 Image available Trisetum cernuum Joseph P. Tracy 1920-5-30 5335 Humboldt Eureka. 61 Comment
  UC922031  Trisetum cernuum Joseph P. Tracy 1939-4-25 16223 Humboldt Bull Creek 60 Comment
  UCD93908  Trisetum cernuum Joseph P. Tracy 1900-5-22 800 Humboldt Immediate vicinity of Eureka. 0 Comment
  CHSC79895  Triticum aestivum Gordon Leppig; Sylvia Leppig, Kai Neander 2000-4-14 1293 Humboldt Arcata, UTM zone 10, 4525N, 409E. 3 Comment
  SJSU136  Tsuga heterophylla Emily D. Smith 1934-8-23 Humboldt Big Lagoon midway between Trinidad & Orick Comment
  UC615043  Tsuga heterophylla Beryl O. Schreiber 1934-6-5 1133 Humboldt 15 mi e of Blue Lake (road to Redding, wooded slope) Comment
  UCD135135  Tsuga heterophylla M. Van Rensselaer 1938-3-31 s.n. Humboldt Humboldt County. Exact location not specified. Comment
  HSC59799  Umbellularia californica Clark L. Miller 1979-5-24 8 Humboldt At 880 Central Ave. McKinleyville Comment
  SEINET12102546  Umbellularia californica J. P. Tracy 1950-1 18600 Humboldt Vicinity of Carlotta 30 Comment
  SEINET12102554  Umbellularia californica E. H. Graham 1931-1 6960 Humboldt Along highway near Garberville Comment
  UC1239526  Uropappus lindleyi Joseph P. Tracy 1913-6-25 4339 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in the valley of the Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  HSC21678  Urtica dioica subsp. gracilis Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  UC154042  Vaccinium cespitosum J. P. Tracy 1901-4-7 1007 Humboldt immediate vicinity Eureka; , Rick's Prairie 0 Comment
  UC22192  Vaccinium cespitosum J. P. Tracy 1899-3 Humboldt Eureka Comment
  CAS-BOT-BC199325  Vaccinium ovatum Ira L. Wiggins 1930-6-25 4613 Humboldt 2 miles north of Samoa Comment
  HSC100479  Vaccinium ovatum Carl C. Marshall Mar 1886 140 Humboldt Near coast everywhere. Comment
  POM285980  Vaccinium ovatum Lyman Benson 1929-7-16 1938 Humboldt Weott Ranger Station. Comment
  UC630486  Vaccinium ovatum H. E. and S. T. Parks Apr 1937 5638 Humboldt Spruce Cove Trinidad Comment
  UC726577  Vaccinium ovatum A. A. Heller 1937-6-12 15917 Humboldt 3 mi n Trinidad (Bishop Pine Lodge) Comment
  CAS-BOT-BC199413  Vaccinium parvifolium Carl B. Wolf 1930-10-26 1768 Humboldt Along the Redwood Highway 3 mi. so. of Del Norte Co. line 152 Comment
  POM118490  Vaccinium parvifolium Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC562351  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1935-7-26 14262 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  JEPS9372  Valeriana californica Joseph P. Tracy 1935-7-30 14381 Humboldt Salmon Summit 2103 Comment
  HSC59144  Vancouveria hexandra Terry Roth 1979-5-20 64 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  HSC98815  Vancouveria hexandra Cara Witte 2008-7-7 839 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  HSC99463  Vancouveria hexandra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 117 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SDSU13780  Vancouveria hexandra D. F. Howe 1969-6-4 4630 Humboldt 14.6 miles east of Alton on #36. 91 Comment
  HSC30400  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1974-7-17 376 Humboldt Grizzly Creek State Park, along Hwy. 36, between Carlotta and Bridgeville Comment
  BLMAR34  Vancouveria planipetala Jennifer Wheeler 34 Humboldt King range Comment
  HSC102030  Veratrum californicum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 932 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC1198213  Veratrum californicum var. californicum Joseph P. Tracy 1933-7-25 12862 Humboldt in wet meadow Grouse Mountain 1524 Comment
  HSC15732  Veratrum insolitum L. K. Weld 1967-7-17 22 Humboldt 0.5 mi. SE of Indian Field Ridge off Hwy. 299 Comment
  UC213362  Verbascum blattaria Joseph P. Tracy 1919-9-13 5199 Humboldt Trinity River Valley near Willow Creek (near Willow Creek); Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC585977  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1933-7-3 12632 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC45597  Veronica americana Diane L. Reed 1978-5-27 136 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC55883  Veronica americana G. L. Clifton, Terry Griswold 1979-7-25 10956 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC99387  Veronica americana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 36 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC582552  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1935-5-25 13832 Humboldt Fort Seward 106 Comment
  HSC21210  Veronica persica N. J. Cole, D. E. Anderson 1965-3-20 8 Humboldt 3 mi. W of Arcata near Lanphere Rd. Comment
  HSC78983  Veronica scutellata L. P. Janeway 1984-5-16 795 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. NW of the boat ramp 3 Comment
  HSC21200  Veronica serpyllifolia subsp. humifusa D. E. Anderson 1965-9-5 4093 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  UC147902  Veronica serpyllifolia subsp. humifusa J. P. Tracy 1909-5-2 2958 Humboldt immediate vicinity of Eureka 0 Comment
  POM283765  Veronica serpyllifolia var. humifusa Lyman D. Benson 1928-7-12 478 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  HSC39004  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1976-5-31 2650 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  UC1222601  Vicia americana var. americana Joseph P. Tracy 1946-5-19 17533 Humboldt Kneeland Prairie 762 Comment
  HSC100542  Vicia americana var. truncata Carl C. Marshall Apr 1884 47 Humboldt Thickets and roadsides throughout Humboldt Bay. Comment
  JEPS29848  Vicia benghalensis Rimo Bacigalupi, and L. Heckard, J. Weiler 1961-6-23 7838 Humboldt about 1 mi w Carlotta (about 0.5 mi e of Hydesville) Comment
  HSC90813  Vicia sativa subsp. nigra Gail Newton 1982-5-5 2531 Humboldt Elk River Wildlife Area, Eureka Comment
  UCD108854  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC3229  Vinca major N. R. Waite 1965-5-18 35 Humboldt Along Hwy. 101, W of Humboldt State College campus. Comment
  CAS-BOT-BC263947  Viola adunca L. B. Kildale 1930-5-11 9543 Humboldt Bald Hills near [Tomlinson's?] 792 Comment
  HSC21756  Viola adunca D. E. Anderson 1961-10-1 1856 Humboldt E side of Freshwater Lagoon Comment
  HSC73155  Viola glabella M. A. Baker 1980-5-18 1299 Humboldt Near Black Mtn. 1006 Comment
  UCR45416  Viola glabella N. Meiselman, M. Bransom, D. Brown, R. Hildebrant 1986-4-19 35 Humboldt North Coast Range, Horse Mountain, 0.5 mi. down Titlow Road from Ski Area 1372 Comment
  CAS-BOT-BC536493  Viola glabella Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  RSA12564  Viola macloskeyi Carl B. Wolf 1934-7-2 5875 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  UC66204  Viola ocellata Mrs. M. H. Manning June 1901 Humboldt near Hupa Comment
  HSC71027  Viola ocellata Thomas W. Nelson 1977-4-20 3319 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  RSA80528  Viola ocellata Joseph P. Tracy 1938-5-1 15731 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC34962  Viola praemorsa subsp. praemorsa Thomas W. Nelson 1975-5-24 1874 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS50373  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA261422  Viola praemorsa subsp. praemorsa Suzanne May 1967-4-15 36 Humboldt Kneeland Road, 2 miles E of Bridgeville. 183 Comment
  SEINET200802  Viola sempervirens J. P. Tracy 1904-4-3 2006 Humboldt Eureka 0 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
  UC1761734  Viola sheltonii W. K. Parks Jul 1933 6237 Humboldt South Fork Mt. Comment
  RSA46711  Vitis californica Doris K. Kildale 1926-5-2 1864 Humboldt Willow Creek Flat. Comment
  UC1197981  Vitis californica Joseph P. Tracy 1926-9-6 7797 Humboldt Trinity River Valley Northern Coast Ranges (near the South Fork) 182 Comment
  CAS-BOT-BC199802  Vulpia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC9841  Vulpia bromoides J. W. Johnson 1962-5-9 1350 Humboldt Christenson Farm, Samoa Peninsula. Comment
  RSA10149  Vulpia bromoides Joseph P. Tracy 1925-5-17 6980 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  RSA123466  Vulpia bromoides H. S. Yates 1936-6-16 5663 Humboldt 1 miles southwest of Samoa. 6 Comment
  CHSC19731  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt Ca. 3 miles west of Willow Creek along Three Creeks Road. Comment
  HSC65449  Vulpia myuros J. P. Smith 1973-5-26 6796 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC71646  Vulpia myuros J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9930 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  CAS-BOT-BC184731  Vulpia myuros subsp. megalura Joseph P. Tracy 1933-6-13 12598 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  UC525643  Vulpia octoflora var. hirtella Joseph P. Tracy 1929-7-4 8618 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  HSC48479  Whipplea modesta Brad Klipfel 1974-9-17 580 Humboldt Horse Mtn. area Comment
  UC62449  Woodwardia fimbriata Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5437 Humboldt near Elk Prairie Comment
  CAS-BOT-BC77813  Woodwardia fimbriata Doris K. Kildale 1926-8-8 2451 Humboldt Bull Creek Flat 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
  UC165897  Wyethia angustifolia Joseph P. Tracy 1911-7-6 3352 Humboldt along road between three creeks and mouth Willow Creek; Northern Coast Ranges, Willow Creek 762 Comment
  CAS-BOT-BC326985  Wyethia longicaulis W. L. Colwell 1957-8-6 52 Humboldt Eleven miles northeast of Bridgeville near Six Rivers National Forest 1295 Comment
  HSC93595  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mtn. Buck Flat, Titlow Hill Rd., at Ammon Ridge Rd. 1524 Comment
  UC1223295  Wyethia longicaulis Joseph P. Tracy 1950-7-1 18942 Humboldt near Clear Lake (summit where the Friday Ridge Road comes to the top of Grouse Mountain ridge); Grouse Mountain Comment
  SEINET11799554  Wyethia longicaulis J. P. Tracy 1950-1 18942 Humboldt near Clear Lake where Friday Ridge Rd comes to top of Grouse Mountain Ridge Comment
  HSC25958  Xanthium strumarium Thomas W. Nelson 1970-10-31 286 Humboldt Eel River near N end of the Scotia Bluff. Comment
  HSC37690  Xanthium strumarium R. Sutherland 1976-8-13 31 .13876 Humboldt In mouth of Redwood Creek at South Fork of Eel River. 88 Comment
  SDSU11985  Xerophyllum tenax D. F. Howe 1961-8-2 3123 Humboldt 24 miles east of Orick on Bald Mt. road. 914 Comment
  HSC100567  Xerophyllum tenax Carl C. Marshall Jun 1885 82 Humboldt Ridge between Redwood and N Fork. Comment
  UC906657  Yabea microcarpa Joseph P. Tracy 1946-1-15 17519 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC23679  Zeltnera muehlenbergii Tim Baroni 1971-7-5 103 Humboldt 8 mi. E of Petrolia Comment
  HSC37997  Zeltnera muehlenbergii Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC15750  Zigadenus micranthus Doris K. Kildale 1936-3-23 1606 Humboldt Alton-Hydeville Rd. 30 Comment
  UC297846  Zostera marina H. E. Parks 1923-5-30 1756 Humboldt Eureka Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
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