Search Results — 2000 specimen records retrieved (1364 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 Comment
  NY29281  Abies grandis J. P. Tracy 1932-3-20 9781 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
  RSA134610  Abies grandis P. C. Everett, E. K. Balls 1959-10-25 23972 Humboldt 10 mi SW from Ferndale on old coast road to Capetown. 457 Comment
  SD42383  Abies grandis Doris Kildale Niles 1941-7-25 Humboldt Arcata Comment
  UC502902  Abies grandis Joseph P. Tracy 1932-6-26 10261 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  CAS-BOT-BC73483  Abies magnifica Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mts. 1828 Comment
  UCR32087  Abronia latifolia David J. Keil 1983-7-1 17287 Humboldt Pacific Coast, c. 5 mi. west of Petrolia along Mattole Road 225 Comment
  CAS-BOT-BC383851  Abronia latifolia Ira L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, eight mi. north of Arcata Comment
  RSA0025093  Abronia latifolia P. A. Munz 1954-7-25 19867 Humboldt Humboldt Lighthouse south of Samoa. Comment
  POM87959  Acer circinatum L. R. Abrams 1922-6-27 8298 Humboldt Prairie Creek, 4 miles north of Orick Comment
Read comments
Feb 25 2015
  HSC98921  Acer glabrum var. torreyi Cara Witte 2007-6-5 211 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  HSC95908  Acer macrophyllum Will Ferrand 2002-4-20 25 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  UC1199013  Acer macrophyllum Joseph P. Tracy 1914-8-23 4592 Humboldt in valley of North Fork of Elk River Northern Coast Region, Humboldt Bay, North Fork Elk River (Region about Humboldt Bay) 0 Comment
  HSC100910  Acer macrophyllum Carl C. Marshall May 1886 208 Humboldt Banks of streams. Comment
  HSC58210  Achillea millefolium Walter Overton 1979-8-1 12329 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC75508  Achillea millefolium J. O. Sawyer, R. J. Cole 1977-7-3 3015 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  RSA298149  Achillea millefolium James Payne Smith 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UCSB15405  Achillea millefolium 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  SEINET201040 Image available Achnatherum lemmonii J. P. Tracy 1913-5-4 4047 Humboldt Kneeland Prairie 762 Comment
  UC1103144  Achnatherum lemmonii J. P. Tracy 1903-5-23 1905 Humboldt Alder Point Eel River 91 Comment
  UC187245  Achnatherum lemmonii Joseph P. Tracy Jul 27 1908-Jul 30 1908 2707 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC526756  Achnatherum lemmonii Joseph P. Tracy 1933-7-25 12849 Humboldt Grouse Mountain 1524 Comment
  UC1222924  Achyrachaena mollis Joseph P. Tracy 1950-6-15 18811 Humboldt n 7 mi at Jenk's Ranch Harris; Mail Ridge Comment
  HSC32835  Acmispon denticulatus Thomas W. Nelson, James Nelson 1973-5-28 949 Humboldt McKeown Ranch N of Dinsmore Comment
  BLMAR170  Acmispon parviflorus Donald Hazlett 1994-6-7 170 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC79425  Acmispon wrangelianus Kenneth Clark 1980-4-18 607 Humboldt Along access trail to Dead Man's Gulch. 114 Comment
  CAS-BOT-BC412848  Aconogonon davisiae Thomas Nelson 1979-7-11 5022 Humboldt North Trinity Mountain and ridge to east. SE of Water Dog Lake 1828 Comment
  HSC56188  Actaea rubra Gilbert Muth 1979-8-1 12125 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC57018  Adenocaulon bicolor Overton, Butler 1979-7-24 9630 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  BLMAR214  Adenocaulon bicolor Jennifer Anthony-Wheeler 1996-7-9 214 Humboldt Pilot ridge., growing in shady woods 1310 Comment
  UC1440273  Adiantum X tracyi L. L. Kiefer and D. Branscomb 1964-5-19 1406 Humboldt ca. 1 mi n Garberville (ravine above Hwy 101) 304 Comment
  HSC30347  Adiantum aleuticum Dale R. Gradek 1974-5-28 95 Humboldt 0.25 mi. E of Hwy. 101 on Jolly Giant Creek 61 Comment
  HSC54594  Adiantum aleuticum Overton, Butler 1979-7-24 9665 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC948  Adiantum aleuticum W. R. Supernaugh, Jr. 1964-12-4 12 Humboldt Along rd. to Jolly Giant Reservoir Comment
  CAS-BOT-BC65554  Adiantum capillus-veneris W. R. Dudley 1903-8-1 s.n. Humboldt Hot Springs (probably near Calif. Redwood Park) Comment
  JEPS18702  Ageratina occidentalis Milo S. Baker 1923-7-21 447 Humboldt Bed of Van Duzen North Coast, Bed of Van Duzen Comment
  RSA168824  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt In woods, Friday Ridge 1220 Comment
  POM289975  Agoseris apargioides var. maritima Lyman Benson 1929-7-15 s.n. Humboldt Clam Beach, Trinidad Comment
  HSC39937  Agoseris grandiflora Linda M. Barker 1976-7-5 1643 Humboldt 3 mi. W of Arcata. Comment
  UC1125463  Agoseris grandiflora var. grandiflora H. L. Person 1932-7-20 19459 Humboldt Fieldbrook Eureka Quadrangle, Fieldbrook Comment
  UC1222936  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-6 19025 Humboldt 3 mi s, sw slopes of Buck Mountain Burr Valley; Buck Mountain 1066 Comment
  OBI6921  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mi W of Mud Springs (to Box camp on W slope of Trinity summit) Comment
  UC582744  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 E Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  UC450003  Agoseris hirsuta Joseph P. Tracy 1923-6-20 6316 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  UC1103369  Agrostis alba J. P. Tracy 1900-9-2 934 Humboldt immediate vicinity Eureka 0 Comment
  UC249861  Agrostis alba Joseph P. Tracy 1924-8-17 6819 Humboldt wet places in woods Northern Coast Ranges, Trinidad 60 Comment
  RSA10025  Agrostis densiflora Joseph P. Tracy 1927-7-17 8271 Humboldt Three Cabins; Chaparral Mountain Comment
  SEINET200940  Agrostis densiflora A. A. Beetle 1941-7-8 2884 Humboldt Stone lagoon facing ocean. 6 Comment
  CAS-BOT-BC127281  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  CAS-BOT-BC127285  Agrostis exarata William Arents Silveus 1938-7-10 2969 Humboldt Eureka. Comment
  UC1145154  Agrostis exarata Joseph P. Tracy 1938-7-11 16050 Humboldt sand dunes near Samoa Humboldt Bay 6 Comment
  UC34113  Agrostis exarata Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5493 Humboldt near Camp Grant Comment
  UCD52368  Agrostis exarata A. H. Murphy 1948-10-19 s.n. Humboldt Fred Fearriams Ranch, near Alderpoint. Comment
  SEINET10789958  Agrostis exarata Joseph P. Tracy 1900-9-2 Tracy 933 Humboldt Immediate vicinity of Eureka. Bed of frog pond. 0 Comment
  SEINET11673856  Agrostis exarata P. H. Chandler 1901-1 1525 Humboldt Klamath River, North Coast Ranges 427 Comment
  CAS-BOT-BC139504  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  UC1145077  Agrostis hallii Joseph P. Tracy 1938-7-4 15982 Humboldt valley South Yager Creek; Valley of South Yager Creek 762 Comment
  UCD52561  Agrostis hallii P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  HSC58802  Agrostis idahoensis G. L. Clifton, Griswold 1979-7-31 11678 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC186902  Agrostis microphylla Joseph P. Tracy 1900-7-4 875 Humboldt Ocean Beach at Humboldt; Northern Coast Region, Ocean Beach, Humboldt Bay Comment
  HSC38381  Agrostis oregonensis Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  UC1103397  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 9006 Humboldt wet meadow at McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC102189  Agrostis pallens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1103 Humboldt Andy's Camp 1564 Comment
  HSC96541  Agrostis pallens Gordon Leppig 1997-8-3 645 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  POM126118  Agrostis pallens Joseph P. Tracy 1900-7-4 876 Humboldt Ocean Beach at Samoa. Comment
  SEINET4558769  Agrostis pallens Doris Kildale 1925-1 s.n. Humboldt Trinity Summit 1524 Comment
  HSC33763  Aira caryophyllea John S. Palmer 1975-5-24 369 Humboldt Off Samoa Blvd., across from boat landing Comment
  HSC8865  Aira caryophyllea A. H. Murphy 1951-5-15 Humboldt 1 mi. SE of Fruitland-Whitlow Rd. Jct. on Whitlow Rd. 305 Comment
  UC1541566  Aira caryophyllea Harold E. Parks May 1933 4304 Humboldt Spruce Cove Trinidad Comment
  UC50685  Aira caryophyllea Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5474 Humboldt Elk Prairie Comment
  UC726346  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt 10 mi s Dyerville; Humboldt Camp Comment
  UCD55700  Aira caryophyllea Joseph P. Tracy 1950-6-15 18814 Humboldt near Huestis Rock, on Harris Road, 6 miles southeast of Fruitland. 914 Comment
  UCD55739  Aira caryophyllea A. A. Beetle; G. L. Stebbins 1942-6-3 3587 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
Read comments
Jan 21 2009
  CAS-BOT-BC138329  Aira caryophyllea var. caryophyllea Doris K. Kildale 1925-6-14 680 Humboldt Head of South Yager Creek. 914 Comment
  CAS-BOT-BC138196  Aira praecox Joseph P. Tracy 1925-6-13 7099 Humboldt Northern Coast Ranges. Eureka. 60 Comment
  HSC8870  Aira praecox H. E. Parks 1938-6-20 24111 Humboldt Spruce Cove, Trinidad Comment
  UC194898  Alisma plantago-aquatica Joseph P. Tracy 1916-6-19 4724 Humboldt Dobbyn Creek Northern Coast Ranges 182 Comment
  CHSC32836  Allium amplectens Lora L. Anderson 1981-4-25 16 Humboldt Ca. 1.5 mi ne Redwood Creek, 4.5 mi n of 299w 18 mi ne of Arcata. 228 Comment
  RSA21655  Allium amplectens Carl B. Wolf 1937-6-14 8810 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  JEPS15036  Allium bolanderi Harley P. Chandler June, 1901 1434 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  CAS-BOT-BC462971  Allium bolanderi Carl Purdy 1933-6-1 s.n. Humboldt Redwood Creek Comment
  UC1198192  Allium campanulatum Joseph P. Tracy 1908-6 2807 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  SEINET199680  Allium unifolium Joseph P. Tracy 1935-6-8 13953 Humboldt Dry Lagoon along coast in front of South End of Stone Lagoon. 15 Comment
  CAS-BOT-BC453427  Allotropa virgata Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  SEINET12027585  Alnus rhombifolia J. P. Tracy 1950-1 19375 Humboldt Klamath River, near Slate Creek, below Orleans 8 mi 122 Comment
  CAS-BOT-BC169533  Alnus rubra Doris K. Kildale 1926-6-28 2181 Humboldt Big Lagoon Comment
  CAS-BOT-BC169540  Alnus rubra Carl B. Wolf 1931-8-28 2366 Humboldt Moist ravine, Redwood Highway, 4 1/2 miles N of Fortuna on road to Eureka 15 Comment
  CHSC130  Alnus rubra A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  SBBG28459  Alnus rubra H. E. and S. T. Parks 1938-4-1 24126 Humboldt Spruce Cove, Trinidad 60 Comment
  UC503100  Alnus viridis subsp. sinuata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9080 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UCD110049  Alnus viridis subsp. sinuata Joseph P. Tracy 1947-8-24 17913 Humboldt Near Box Camp. 1524 Comment
  RSA44474  Alopecurus aequalis Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  SEINET6820704 Image available Alopecurus geniculatus A. A. Beetle, Stebbins; Tracy 1942-6-2 3458 Humboldt Loleta Swamp, S of Eureka Comment
  UC1152033  Alopecurus geniculatus Joseph P. Tracy 1951-6-21 19524 Humboldt back of Everett Beck house (formerly Geroge Fray), bed of former Goose Lake Hydesville Comment
  UCD55904  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt mouth of Elk River, near Eureka. 6 Comment
  HSC8896  Alopecurus pratensis W. F. Cartwright 1965-5-20 78 Humboldt 5 mi. S of Arcata on Old Arcata Rd. Comment
  HSC8900  Alopecurus pratensis L. M. Malloy 1965-3-27 2 Humboldt Arcata, 0.5 mi. W of Alliance Store along N side of Alliance Rd. Comment
  UCD55912  Alopecurus saccatus Joseph P. Tracy 1951-6-21 19525 Humboldt Hydesville, bed of former Goose Lake, back of Everett Beck house (formerly George Gray). Comment
  CAS-BOT-BC13706  Ambrosia chamissonis H. E. Parks 1941-9-1 24214 Humboldt At mouth of Little River Comment
  CAS-BOT-BC13708  Ambrosia chamissonis Le Roy Abrams 1916-7-18 6118 Humboldt Arcata to Trinidad Comment
  UC127637  Ambrosia chamissonis J. P. Tracy 1901-8-7 1275 Humboldt at, on Sea Beach opposite Eureka Samoa Comment
  CAS-BOT-BC13707  Ambrosia chamissonis A. A. Heller 1924-7-21 13869 Humboldt Salt marsh at Eureka Comment
  CAS-BOT-BC142905  Amelanchier Doris K. Kildale; L. B. Kildale 1930-5-11 9559 Humboldt McClellan Hill near Bridgeville 609 Comment
  CAS-BOT-BC142901  Amelanchier alnifolia var. semiintegrifolia Thomas Nelson 1977-6-15 3438 Humboldt Along old road to ski area, Willow Creek Quad. - North Coast Ranges 1371 Comment
  HSC18514  Amelanchier alnifolia var. semiintegrifolia Francis Winter 1960-4-24 Humboldt 8 mi. NE of Redwood Creek Ranch 610 Comment
  HSC76240  Amelanchier alnifolia var. semiintegrifolia Denis Kearns 1981-6-24 23 Humboldt Near Cedar Camp 1219 Comment
  UC418998  Amelanchier alnifolia var. semiintegrifolia H. E. Parks, J. P. Tracy 1925-6-25 3775 Humboldt Lawrence Creek Comment
  RSA86667  Ammophila arenaria F. W. Peirson 1941-7-29 13112 Humboldt Little River Beach State Park. Comment
  HSC28135  Anagallis arvensis J. D. Ackerman 1973-5-6 47 Humboldt Redcrest Comment
  CAS-BOT-BC45140  Anaphalis margaritacea M. S. Taylor 1975-4-12 466 Humboldt Ca. 200 yards W of Hwy 101, by RR tracks, Orick Comment
  HSC56211  Anemone deltoidea G. L. Clifton, Griswold 1979-8-2 12216 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC99355  Anemone oregana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 4 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC98540  Anemone oregana Cara Witte 2008-6-9 705 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1418 Comment
  UC503041  Anemone oregana Joseph P. Tracy 1928-4-1 8408 Humboldt n end Big Lagoon; Nort Coast Region 152 Comment
  JEPS16073  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
  JEPS14106  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  HSC71418  Angelica hendersonii J. M. DiTomaso 1980-7-29 1806 Humboldt Elkshead, 2 mi N of Trinidad Comment
  HSC71419  Angelica hendersonii J. M. DiTomaso 1980-7-29 1797 Humboldt Elkshead, 2 mi N of Trinidad Comment
  POM318530  Angelica lucida Patricia Wilder 1968-8-21 4376 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  UC1051577  Angelica tomentosa Joseph P. Tracy 1948-9-5 18185 Humboldt 3 mi s of Grizzly Camp (Trinity Summit); Trinity Summit 1524 Comment
  UC642265  Angelica tomentosa Joseph P. Tracy 1939-8-16 16410 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC94796  Anisocarpus madioides R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 835 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air mi. N of Mattole Road & 3 air mi. W of Hwy 101. 243 Comment
  HSC58132  Antennaria howellii Gilbert Muth 1979-8-1 12135 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC41274  Antennaria suffrutescens Brad Klipfel 1974-6-25 426 Humboldt Horse Mtn. Comment
  CAS-BOT-BC84720  Anthemis cotula Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  RSA254784  Anthemis cotula Thomas W. Nelson 1973-8-19 1111 Humboldt McKeown Ranch north of Dinsmore Comment
  HSC40404  Anthoxanthum occidentale Linda M. Barker 1976-4-13 1387 Humboldt 3 mi. W of Arcata Comment
  HSC49816  Anthoxanthum occidentale R. York 1979-4-21 243 Humboldt Behind the town of Korbel Comment
  HSC45641  Anthoxanthum odoratum Diane L. Reed 1978-4-22 33 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC8929  Anthoxanthum odoratum True Hoyle 1967-7-24 29667 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  RSA286350  Anthoxanthum odoratum R. F. Thorne 1974-7-29 45071 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  HSC40265  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt 3 mi. W of Arcata Comment
  HSC24399  Apocynum androsaemifolium J. O. Sawyer 1970-6-24 2225 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1197618  Apocynum androsaemifolium Joseph P. Tracy 1932-7-15 10577 Humboldt woods near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  HSC40992  Apocynum androsaemifolium Thomas W. Nelson, Jane P. Nelson 1977-9-3 3730 Humboldt N of pond above Alder Springs 1616 Comment
  POM287860  Apocynum androsaemifolium subsp. pumilum Lyman Benson 1929-7-14 s.n. Humboldt S. Fork Eel River Weott Ranger Station Comment
  HSC3218  Apocynum cannabinum Lincoln Constance 1934-6-11 848 Humboldt Bull Creek region, trail along E bank of S Fork of Eel, N Dyerville Flat Comment
  UC1196202  Aquilegia formosa Joseph P. Tracy 1926-5-9 7453 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC162852  Aquilegia formosa Joseph P. Tracy 1908-6 2739 Humboldt nw slope of Buck Mountain Northern Coast Ranges 762 Comment
  HSC31631  Aquilegia formosa var. formosa Glenn McGourty 1974-4-27 18 Humboldt 1 mi. from Capetown Bridge Comment
Read comments
May 26 2016
  HSC57019  Aquilegia formosa var. truncata Overton, Butler 1979-7-24 9631 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC492254  Arabidopsis thaliana Joseph P. Tracy 1932-5-17 10091 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC57633  Arabis breweri var. breweri G. L. Clifton, Griswold 1979-7-25 10787 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC100458  Arabis perfoliata Carl C. Marshall Jun 1887 403 Humboldt Harris. Comment
  HSC74547  Arabis platysperma M. A. Baker 1980-7-24 3211 Humboldt Near Orleans Mtn. 1625 Comment
  HSC99596  Aralia californica Overton, Butler 1979-7-24 14090 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  RSA246789  Aralia californica R. F. Thorne, P. Everett 1965-8-5 35137 Humboldt Mt. Chamisal: below summit 579 Comment
  UC154135  Aralia californica P. E. Goddard 1901-7-12 78 Humboldt Hupa Comment
  CAS-BOT-BC167258  Aralia californica Doris K. Kildale 1926-11-14 2860 Humboldt Stephen's Grove near Miranda Comment
  CAS-BOT-BC128700  Arbutus menziesii Doris K. Kildale 1925-8-13 1114 Humboldt Willow Creek Flat - Trinity River Valley 152 Comment
  HSC7602  Arbutus menziesii Dan O'Brien 1962-5-19 Humboldt 4 1/2 mi. E on Fickle Hill Rd. Comment
  UC672852  Arceuthobium campylopodum Joseph P. Tracy 1932-7-14 10571 Humboldt ridges e of Corral Prairie Trinity Summit 1676 Comment
  UC1182190  Arctostaphylos J. A. Delapp 1959-10-7 57 Humboldt 5 3/4 mi ne Schoolits Peak (Wiregrass Prairie, Plot V1); Quad 11 C-1 853 Comment
  UC585944  Arctostaphylos Joseph P. Tracy 1934-3-11 13158 Humboldt French Camp Ridge 1066 Comment
  JEPS38981  Arctostaphylos bakeri subsp. bakeri Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
Read comments
Mar 7 2007
  CAS-BOT-BC24094  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast range Horse Mt. 1524 Comment
  CAS-BOT-BC24095  Arctostaphylos canescens subsp. canescens Doris K. Kildale 1926-8-15 2542 Humboldt Hoopa Mountain 792 Comment
  CAS-BOT-BC25209  Arctostaphylos canescens subsp. canescens J. P. Tracy 1941-4-11 16861 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  CAS-BOT-BC23906  Arctostaphylos canescens subsp. sonomensis Joseph P. Tracy 1935-7-14 14064 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC23907  Arctostaphylos canescens subsp. sonomensis Joseph P. Tracy 1947-7-9 17861 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC23908  Arctostaphylos canescens subsp. sonomensis Walter Knight; Irja Knight 1988-9-4 s.n. Humboldt Horse Mountain Recreation Area. On embankment between Summit Road junction and electronic towers at summit. Comment
  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-BC23792  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny. Comment
  CAS-BOT-BC23799  Arctostaphylos columbiana E. K. Balls; L. W. Lenz 1955-5-16 20746 Humboldt 24.6 mie. SE of Shelter Cove, Coast Road to Rockport 457 Comment
  HSC31516  Arctostaphylos columbiana Steve Selva, Roger Jensen 1974-8-21 30 Humboldt Redwood Forest across from Hwy. 101 entrance to Patrick's Point State Park Comment
  HSC62325  Arctostaphylos columbiana Ruby Van Deventer 1959-2-28 Humboldt Patrick's Point on Coastal Bluff Comment
  HSC89539  Arctostaphylos columbiana M. Roantree 1985-4-28 15 Humboldt W side of Trinidad Head, along trail Comment
  SBBG83934  Arctostaphylos columbiana R. Gankin, W. R. Hildreth 1967-10-26 1168 Humboldt 20 rd mi E of US Hwy 101 on Bald Hills Rd (from Orick) Comment
  UC314644  Arctostaphylos columbiana Joseph P. Tracy 1924-3-9 6606 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC585920  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UCD50769  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1178 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  UCD50772  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1170 Humboldt 21.4 miles east of U.S. Highway 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  RSA13418  Arctostaphylos columbiana var. tracyi H. E. Parks 1931-3-25 917 Humboldt Near Patrick's point. Comment
  HSC100245  Arctostaphylos densiflora J. P. Smith, J. O. Sawyer 2010-5-2 12794 Humboldt Along Hwy. 96, E of Orleans 244 Comment
  HSC101662  Arctostaphylos glandulosa subsp. glandulosa J. P. Smith, J. O. Sawyer 2011-4-23 13123 Humboldt Kings Peak Road near Shelter Cove. 523 Comment
  UC1120179  Arctostaphylos glandulosa subsp. glandulosa A. E. Wieslander 1931-5-19 200 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  UCD51746  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1947-7-5 17787 Humboldt Trinity Summit; ridge top one mile west of Mud Springs. 1158 Comment
  RSA632800  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27771 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  CHSC63764  Arctostaphylos manzanita Walter Knight; Irja Knight 1988-9-5 6362 Humboldt Bald Hill Road about 21.5 miles from US 101 en route to Hoopa. 929 Comment
  HSC73604  Arctostaphylos manzanita M. A. Baker 1980-7-23 3143 Humboldt Near Orleans Mtn. 1859 Comment
  HSC74675  Arctostaphylos manzanita Gail Newton 1981-5-16 2177 Humboldt Near Bug Creek. 1228 Comment
  RSA633017  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27811 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  RSA633019  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27808 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  RSA633025  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27805 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  CAS-BOT-BC38840  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1921-9-26 s.n. Humboldt Klamath River at Orleans Comment
  HSC102569  Arctostaphylos nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1556 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC40066  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1179 Humboldt French Camp Ridge21.4 miles east of US 101 on Bald Hills Road (from Orick) Comment
  CAS-BOT-BC40067  Arctostaphylos nevadensis subsp. knightii Walter Knight; Irja Knight 1988-9-5 6360 Humboldt 21 miles up Bald Hill road from US-101 en route to Hoopa. 975 Comment
  CAS-BOT-BC40068  Arctostaphylos nevadensis subsp. knightii Doris K. Kildale 1926-8-22 2585 Humboldt On road from Orick to Martin's Ferry. 716 Comment
  CAS-BOT-BC40071  Arctostaphylos nevadensis subsp. knightii Doris K. Kildale 1926-8-22 2587 Humboldt On road between Orick & Martin's Ferry. Comment
  UCD52857  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1976-10-26 1177 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  SEINET11989093  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1177 Humboldt 21.4 mi E of US 101 on Bald Hills Rd from Orick, French Camp Ridge Comment
  SEINET2028698 Image available Arctostaphylos tracyi H. E. Parks 1931-12-1 4950 Humboldt Hobson's Trinidad 200 Comment
  CAS-BOT-BC47210  Arctostaphylos uva-ursi Doris K. Kildale 1927-3-4 2975 Humboldt Samoa peninsula. Comment
  HSC7734  Arctostaphylos uva-ursi Jerry Parker 1968-10-16 14 .1 Humboldt Foot of Murray Rd., McKinleyville Comment
  HSC77903  Arctostaphylos uva-ursi L. P. Janeway 1984-5-16 799 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 5 Comment
  RSA122503  Arctostaphylos uva-ursi H. S. Yates 1936-6-16 5661 Humboldt 1 mile S.W. of Samoa. Comment
  SD117461  Arctostaphylos uva-ursi Robert F. Thorne 1974-7-29 45082 Humboldt Samoa Dunes Comment
  CHSC79250  Arctotheca calendula G. D. Barbe; T. C. Fuller 1989-6-8 4321 Humboldt In pastures of the Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  SD42237  Arenaria douglasii Carl B. Wolf 1937-6-14 8822 Humboldt North Coast Range, Kneeland Prairie. 819 Comment
  HSC16897  Armeria maritima subsp. californica J. R. Kahl 1962-5-13 33 Humboldt 2 mi. S of Trinidad along old Hwy. 101, 50 yds. from ocean Comment
  HSC79385  Armeria maritima subsp. californica Kenneth Clark 1981-5-24 1391 Humboldt Abalone Pt. 15 Comment
  UC195424  Armeria maritima subsp. californica Joseph P. Tracy 1915-6-6 4649 Humboldt Bay Shore Northern Coast Region, Eureka 0 Comment
  UCR122371  Armeria maritima subsp. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 7017 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  SEINET10537845  Armeria maritima subsp. californica Mary Susan Taylor 1990-8-22 Taylor 6083 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC582488  Arnica cordifolia Joseph P. Tracy 1935-7-30 14372 Humboldt top of ridge s of Red Cap Lake; Salmon Summit 2011 Comment
  HSC97987  Arnica discoidea Cara Witte 2007-7-8 430 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  SEINET6999602  Arnica discoidea J. P. Tracy 1911-7-11 3513 Humboldt Hoopa Valley, hills near Supply Creek. Comment
  UC29649  Arnica discoidea H. N. Bolander 1867-1 Humboldt Humboldt Co. Comment
  HSC32237  Arrhenatherum elatius J. O. Sawyer 1970-6-24 2232 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC8986  Arrhenatherum elatius W. F. Cartwright 1965-5-20 79 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  POM264517  Artemisia pycnocephala H. E. Parks 1941-08 24186 Humboldt Little River State Park Comment
  HSC5042  Artemisia suksdorfii H. E. Parks May 1940 24178 Humboldt Little River Comment
  RSA21583  Artemisia suksdorfii C. B. Wolf 1937-9-9 9303 Humboldt Coast, 4.5 mi S of Cape Mendocino. 6 Comment
  RSA40781  Artemisia suksdorfii C. B. Wolf 1944-10-26 11470 Humboldt Redwood Highway at Junction of road to Crannell 15 Comment
  UC154505  Aruncus dioicus var. pubescens Harley P. Chandler Jun 1901 1527 Humboldt Klamath River; North Coast Region 426 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
  HSC26878  Asarum caudatum Clifton Raymond Chesbrough 1973-6-19 83 Humboldt .5 mi. S of Trinidad along the coast Comment
  HSC73807  Aspidotis densa M. A. Baker 1980-6-16 1927 Humboldt Near Monks Camp. 1097 Comment
  UC197913  Aspidotis densa Joseph P. Tracy 1912-7-26 3849 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC44044  Aspidotis densa Thomas W. Nelson, Jane Nelson 1977-7-4 3599 Humboldt Along old trail N of Alder Spring 1555 Comment
  CDA26595  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land. THP 1-00-461HUM. Comment
  JEPS16849 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. 762 Comment
  SEINET880898 Image available Astragalus agnicidus Henry Tosten 1931-1 s.n. Humboldt Near Bear Buttes, 4 mi south of Miranda; local on Tosten and Pierce Ranch. 762 Comment
  UC502992 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; near Bear Buttes, Humboldt Co. 762 Comment
  CAS-BOT-BC193136  Astragalus rattanii var. rattanii L. R. Abrams 1916-7-11 6056 Humboldt At mouth of Grizzly Creek on Van Duzen River Comment
  UC1222420  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt at Lake Prairie , at Lake Prairie (Bald Mountain) 1066 Comment
  UC179937  Astragalus umbraticus Joseph P. Tracy 1914-7-5 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  HSC99521  Asyneuma prenanthoides K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 184 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC69524  Athyrium filix-femina subsp. cyclosorum Ludwig A. Waitzinger 1925-8-3 s.n. Humboldt Martins Ferry. Comment
  CAS-BOT-BC69525  Athyrium filix-femina subsp. cyclosorum Ira L. Wiggins 1957-6-19 14127 Humboldt 2.5 mi. w. of Pepperwood. Comment
  HSC91598  Athyrium filix-femina var. cyclosorum E. Mackey 1986-10-2 Humboldt Patrick's Point State Park by trail to Agate Beach Comment
  UC503069  Athyrium filix-femina var. cyclosorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9008 Humboldt near McKay Camp S Fork Mt; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC146202  Avena barbata Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  UCD56094  Avena strigosa Ma. Jaegar 1926-6-8 415 3d Humboldt Happy Valley. Comment
  CAS-BOT-BC66223  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  UC249846  Baccharis glutinosa Joseph P. Tracy 1924-8-10 6810 Humboldt Van Duzen River, Blue Slide 91 Comment
  CHSC19741  Baccharis pilularis subsp. consanguinea Gary J. Stebbins 1970-2-2 7 Humboldt Along U. S. 101 1.5 miles north of Patricks Point State Park. 83 Comment
  SEINET7003036  Baeria chrysostoma Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  CAS-BOT-BC99989  Balsamorhiza deltoidea Harold E. Parks; Joseph P. Tracy 1935-6-16 11282 Humboldt Buck Mt. Lower NW slopes 792 Comment
  UC552310  Balsamorhiza deltoidea Joseph P. Tracy 1935-6-16 11282 Humboldt lower nw slope Buck Mountain 792 Comment
  SFV18538  Bellis perennis M. Cavelti 2002-5-4 34 Humboldt On A street off 11th street, along western side of road. 20 Comment
  CAS-BOT-BC48154  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain - in cold wet meadow near high prairie 1066 Comment
  CAS-BOT-BC48155  Bensoniella oregona Joseph P. Tracy 1939-7-9 16327 Humboldt Snow Camp in moist ground around meadow. 1402 Comment
  UC1051579  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain in meadow near High Prairie; Northern Coast Ranges, Bald Mountain, nr High Prairie 1066 Comment
  RSA46859  Berberis aquifolium Doris K. Kildale 1926-6-27 s.n. Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road. 640 Comment
  UC1198387  Berberis aquifolium Joseph P. Tracy 1940-8-25 16711 Humboldt High Prairie Bald Mt 1066 Comment
  HSC76277  Berberis aquifolium var. repens Denis Kearns 1981-7-6 65 Humboldt Near Mosquito Lake 1256 Comment
  UC1198389  Berberis aquifolium var. repens Joseph P. Tracy 1947-7-5 17789 Humboldt ridge top 1 mi w Mud Springs (Trinity Summit) 1158 Comment
  BLMAR655  Berberis nervosa Jennifer Wheeler 2012-5-9 655 Humboldt Lacks Creek, Beaver Ridge Road 914 Comment
  CAS-BOT-BC75687  Berberis nervosa Carl B. Wolf 1927-8-28 1179 Humboldt 13 miles above Blue Lake on the Lord Ellis Road. Comment
  CAS-BOT-BC75686  Berberis nervosa Volney Rattan 1879-1-1 s.n. Humboldt Phelps. Comment
  CAS-BOT-BC75804  Berberis pinnata Doris K. Kildale 1929-3-19 7026 Humboldt Top of Liscom Hill, from Essex. 853 Comment
  CAS-BOT-BC75805  Berberis pinnata Doris K. Kildale 1929-4-25 7433 Humboldt Kneeland Prairie. 792 Comment
  CHSC23180  Berberis pinnata Robert F. Thorne; P. Everett 1965-8-5 35141 Humboldt 5.2 mi. N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  HSC55079  Bistorta bistortoides G. L. Clifton, Griswold 1979-7-31 11712 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA1505  Blechnum spicant E. R. Johnson 1929-08 1408 Humboldt Arcata Redwood Park Comment
  RSA12514  Blechnum spicant C. B. Wolf 1934-7-3 5922 Humboldt 2.7 miles from Martin s Ferry on Orick Road 213 Comment
  UC902015  Boechera acutina Harold E. Parks and Joseph P. Tracy 1949-6-25 11678 Humboldt Box Camp Trinity Summit 1463 Comment
  RSA182023  Boisduvalia glabella Joseph P. Tracy 1916-6-19 4726 Humboldt Northern coast ranges: Dobbyn Creek 183 Comment
  HSC24555  Boschniakia hookeri Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  CAS-BOT-BC121304  Botrychium multifidum Peter F. Zika 2007-7-30 23318 Humboldt SW corner of Big Lagoon 2 Comment
  CDA42735  Botrychium multifidum T. C. Fuller 1961-9-28 7054 Humboldt 1.5 miles south of Samoa. 0 Comment
  CAS-BOT-BC420277  Boykinia occidentalis J. P. Tracy 1901-6-30 1210 Humboldt Immediate vicinity of Eureka Comment
  HSC20180  Boykinia occidentalis D. E. Anderson 1965-9-5 4095 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC45727  Boykinia occidentalis Patricia Shesgreen 1978-7-30 118 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  UC56717  Boykinia occidentalis Harley P. Chandler June, 1901 1311 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  CAS-BOT-BC420262  Boykinia occidentalis Roxana S. Ferris 1937-8-21 s.n. Humboldt in cliff above beach, Shelter Cove Comment
  CAS-BOT-BC420267  Boykinia occidentalis L. R. Abrams 1922-6-25 8265 Humboldt between Trinidad & Big Lagoon Comment
  CAS-BOT-BC420272  Boykinia occidentalis L. R. Abrams 1916-7-21 6149 Humboldt Grizzly Creek Comment
  UC180219  Brassica nigra Joseph P. Tracy 1914-6-28 4514 Humboldt Near Hydesville; Northern Coast Ranges 60 Comment
  CAS-BOT-BC106289  Brickellia californica E. G. Johnston 1931-8-1 s.n. Humboldt Myers, S. Fork Eel River Comment
  CAS-BOT-BC106293  Brickellia californica J. Clausen 1932-9-19 696 Humboldt Dyerville, Eel River, in dry river bed. Comment
  UC581796  Brickellia californica Joseph P. Tracy 1934-9-30 13681 Humboldt Bridgeville 198 Comment
  UC581799  Brickellia greenei Joseph P. Tracy 1935-7-30 14361 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC127682  Brickellia greenei Joseph P. Tracy 1939-8-16 16401 Humboldt Horse Mountain, in open forest of Jeffrey Pine, in serpentine belt 1432 Comment
  UC581798  Brickellia greenei Joseph P. Tracy 1934-9-5 13655 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1402 Comment
  SBBG122948  Briza maxima D. Wilken with E. Painter 2007-6-4 16739 Humboldt Samoa Dunes, ca. 0.4 km W of US Coast Guard Station, North Spit, Humboldt Bay 5 Comment
  UC1844146  Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton (Northern Coast Region) Comment
  UC37551  Briza minor Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5473 Humboldt Elk Prairie Comment
  SBBG21833  Brodiaea elegans subsp. elegans D. Myrick 1964-7-26 975 Humboldt Hwy 299 ca. 15 mi E of Arcata 762 Comment
  SEINET199104  Brodiaea stellaris Rimo Bacigalupi, L. Constance; Moran Carlquist. 1951-6-13 3406 Humboldt Along State Highway 36 5 miles east of Bridgeville Comment
  JEPS5501  Brodiaea stellaris Milo S. Baker 1923-7-26 127 Humboldt near head of South Fork of Yager Creek; Lamb Ranch Comment
  JEPS514  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1933-5-20 12249 Humboldt 1 mi. w. Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  UC15039  Brodiaea terrestris subsp. terrestris J. P. Tracy 1901-6-23 1159 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC484614  Brodiaea terrestris subsp. terrestris D. E. Breedlove 1962-6-7 3038 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  SBBG53059  Bromus R. N. Philbrick, J. R. Haller 1976-6-25 5 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  SEINET7297864 Image available Bromus breviaristatus Joseph P. Tracy 1950-1 18786 Humboldt Mail Ridge; North of Harris 2 miles 1036 Comment
  RSA91688  Bromus carinatus F. W. Peirson 1941-7-23 13118 Humboldt Van Damme State Park. Along the creek about 2 miles from camp. Comment
  HSC9284  Bromus diandrus R. V. Papike 1962-5-25 33 Humboldt Arcata 91 Comment
  BLMAR158  Bromus hordeaceus Donald Hazlett 1994-6-7 158 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC9174  Bromus hordeaceus G. B. Kendall 1965-5-8 44 Humboldt Trinidad State Park Beach. Comment
  HSC9247  Bromus hordeaceus J. R. Eichelberger 1964-5-13 80 Humboldt 1/4 mi. from U.S. 101 on the N side of the Mad River. Comment
  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
  UC1131062  Bromus hordeaceus H. S. Yates 1936-6-17 5716 Humboldt near Burr Valley 914 Comment
  UC34106  Bromus hordeaceus Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5349 a Humboldt Bells Spring; North-Western California, Bells Spring Comment
  UC525675  Bromus madritensis subsp. rubens Joseph P. Tracy 1933-6-25 12623 Humboldt 2 to 5 mi e of South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  SEINET202034 Image available Bromus orcuttianus Joseph P. Tracy 1949-7-19 18373 Humboldt Grouse Mtn. on Friday Ridge, at Friday's Camp 1219 Comment
  UC526932  Bromus sterilis Joseph P. Tracy 1933-6-13 12601 Humboldt Bair's Ranch on Redwood Creek Redwood Creek; North Coast Ranges, , Bair's Ranch 914 Comment
  HSC39395  Bromus tectorum D. E. Anderson, J. P. Smith 1971-6-28 - 1248 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC70926  Bromus tectorum R. York 1980-5-18 577 Humboldt Near Black Mountain 792 Comment
  RSA126829  Bromus tectorum H. S. Yates 1936-6-19 5715 Humboldt Near Burr valley; South Fork Pk. 915 Comment
  UC1103350  Bromus tectorum Joseph P. Tracy 1933-5-18 12187 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  RSA127011  Bromus vulgaris H. S. Yates 1936-6-23 5873 Humboldt 3 miles S. E. of Scotia; Rohnerville Comment
  UC180218  Bromus vulgaris Joseph P. Tracy 1913-6-21 4253 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  RSA43838A  Buddleja davidii H. M. Pollard 1947-8-9 s.n. Humboldt Klamath River near Harley Place, Orleans region Comment
  HSC75234  Cakile edentula D. M. Gordon 1982-9-23 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC902001  Cakile maritima Joseph P. Tracy 1948-6-10 18062 Humboldt Trinidad, beach w of town Trinidad 3 Comment
  CAS-BOT-BC36911  Cakile maritima var. maritima Kenneth Clark 1981-5-24 1395 Humboldt Shelter Cove. 300 yards west of Dead Man's gulch. 3 Comment
  UC1145053  Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 B Humboldt near Panther Gap (on road between Mattole and Bull Creek) 822 Comment
  UCD56961  Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 B Humboldt near 'Panther Gap' on road between Mattole and Bull Creek. 822 Comment
  CAS-BOT-BC185182  Calamagrostis nutkaensis David D. Keck 1948-7-1 5976 Humboldt Northeast end of Big Lagood. Comment
  UC511547  Calamagrostis nutkaensis Ira L. Wiggins 1932-7-25 5898 Humboldt roadsides near McKinleyville Comment
  HSC102081  Calochortus coeruleus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 983 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC100550  Calochortus maweanus Carl C. Marshall May 1885 129 Humboldt Open ground in 'the hills'. Comment
  CHSC32848  Calochortus tolmiei Lora L. Anderson 1981-4-25 11 Humboldt Ca. 1.5 mi ne of Redwood Creek 4.5 mi n of 299w 18 mi ne of Arcata. 228 Comment
  HSC34998  Calochortus tolmiei Thomas W. Nelson 1975-5-24 1879 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC494355  Calochortus tolmiei Doris K. Kildale 1927-5-13 3248 Humboldt Redwood creek at Berngs' 289 Comment
  CAS-BOT-BC494364  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt Sand dunes west of Dows Prairie 15 Comment
  HSC34909  Calochortus tolmiei Thomas W. Nelson 1975-5-27 1883 Humboldt Beside Petrolia-Ferndale Rd., 5 mi. S of Ferndale Comment
  JEPS17829  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  UC176353  Calochortus tolmiei Joseph P. Tracy 1913-6-22 4263 Humboldt opposite Buck Mountain (Dinsmore's Ranch); North Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD139586  Calochortus tolmiei Thomas W. Nelson; James L. Nelson 1980-6-10 5427 Humboldt along road to Red Mountain. 1371 Comment
  HSC82398  Caltha leptosepala Thomas W. Nelson 1979-7-11 5016 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  JEPS38589  Calycadenia multiglandulosa W. L. Jepson 1902-7-4 1983 Humboldt Hupa Valley Comment
  JEPS876  Calycadenia truncata Chesnut and Drew 1888-7-28 Humboldt Hy-Am-pon Comment
  RSA47142  Calycadenia truncata subsp. scabrella Doris K. Kildale 1925-9-4 982 Humboldt Redwood Creek Comment
  HSC16565  Calypso bulbosa Eldrid H. Spinas 1948-6-16 70 Humboldt Horse Mtn. Comment
  HSC38745  Calypso bulbosa J. D. Ackerman 1976-4-26 753 Humboldt 1.5 mi. E of Blue Lake Simpson demonstration forest near highway. Comment
  SEINET12074106  Calypso bulbosa J. P. Tracy 1950-1 Humboldt Comment
  UCD138886  Calypso bulbosa var. occidentalis Linda M. Barker 1976-3-22 1347 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC17640  Calyptridium monospermum Doris K. Kildale 1925-8-16 1227 Humboldt Trinity Summit 1829 Comment
  HSC40007  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1976-7-1 2903 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC582720  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1937-7-24 15531 Humboldt head of Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  HSC59460  Calystegia soldanella M. A. Ericksen 1979-5-18 297 Humboldt Samoa Dunes, .5 mi. S of Simpson Timber Company plant entrance Comment
  CHSC20349  Calystegia soldanella D. E. Anderson; N. Dennis 1965-6-8 1036 Humboldt Samoa Peninsula along the west side of Humboldt Bay. Sections 3, 4, 9, 10, 15, 16, 17, 20, 21, 28, 29, 31, 32. Comment
  UC302169  Camassia quamash Joseph P. Tracy 1925-7-5 7179 1/2 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  CHSC40211  Camassia quamash subsp. quamash L. P. Janeway 1984-5-13 778 Humboldt Along the Kneeland/Bridgeville Road ca 19 mi east of the Kneeland post office and 1 mi south of N Fk Yager Creek. 640 Comment
  HSC16439  Camissonia cheiranthifolia D. E. Anderson 1961-9-9 1795 Humboldt Big Lagoon County Park Comment
  HSC47487  Camissonia cheiranthifolia Sheila Logan 1978-4-7 6 Humboldt Samoa Sand Dunes, 1/4 mi. N of Coast Guard Station at N spit of Samoa Peninsula Comment
  HSC16464  Camissonia strigulosa Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
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Dec 14 2019
  OBI36380  Camissoniopsis cheiranthifolia David J. Keil 1983-7-1 17283 Humboldt Ca. 5 mi NW of Petrolia along mattole Rd Comment
  UC741172  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. and S. K. Harris, Clarence Crane Jr. 1939-8-23 970 Humboldt Samoa Comment
  SEINET10462988  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt Willow Creek Comment
  SEINET10463344  Campanula prenanthoides Duncan 1920-9-22 Duncan s.n. Humboldt HOOPA VALLEY Comment
  SEINET10972392  Campanula prenanthoides Perry 1930-7-11 Perry s.n. Humboldt Humboldt State Park Comment
  UC168961  Campanula prenanthoides Joseph P. Tracy 1909-8-1 3061 Humboldt in woods Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET10463566  Campanula scouleri Clifton 1979-7-31 CLIFTON 11815 Humboldt NR TISH TANG A TANG CR., SALMON MT QUAD. NR HOOPA EVERGREEN CONIFER FOREST IN SEEPAGE AREA 1356 Comment
  SEINET10463757  Campanula scouleri Griswold 1979-7-11 GRISWOLD 6946 Humboldt Near Snow Camp Mountain, on the Iagua Buttes quadrangle, close to the town of Willow Creek 1320 Comment
  SEINET10463479  Campanula scouleri Manning MANNING [ 305 ] Humboldt Near Hupa (Bald Hills). 457 Comment
  SEINET10463742  Campanula scouleri Kildale 1926-6-27 KILDALE 2191 Humboldt Sweasey Lake, McClellan Mountain 823 Comment
  CAS-BOT-BC37433  Cardamine californica Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  HSC47950  Cardamine californica Brad Klipfel 1974-5-27 383 Humboldt Horse Mtn. Comment
  HSC57307  Cardamine californica Terry Griswold, Marvin Butler 1979-7-10 6250 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1495 Comment
  HSC6698  Cardamine californica Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  SEINET11196228  Cardamine californica L. E. Detling 1935-4-20 1643 Humboldt Redwood Flat, 1 mile N of Dyerville. Comment
  JEPS79885  Cardamine californica var. sinuata Joseph P. Tracy 1937-3-21 15233 Humboldt 2 mi w. Bridgeville 198 Comment
  UC1222655  Cardamine californica var. sinuata Joseph P. Tracy 1950-5-7 18651 Humboldt on the Redwood House Road 1 mi s Redwood House (on Yager Slope, head of South Yager Creek); head of South Yager Creek, on Yager Slope Comment
  HSC99363  Cardamine nuttallii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 12 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC37890  Cardamine oligosperma Alice Eastwood 1907-4-21 21 Humboldt Trinidad. Comment
  CAS-BOT-BC384766  Cardionema ramosissimum D. E. Breedlove 1962-6-7 3048 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  SEINET201070  Carduus pycnocephalus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mt 762 Comment
  SEINET11861100  Carduus tenuiflorus J. P. Tracy 1942-6-28 17266 Humboldt Angels Ranch, toward Hungry Hollow, Bald Mountain Comment
  HSC97229  Carex abrupta Kiera A. Freeman, Heather J. Perry 2007-6-13 10 Humboldt 1 mi. E of NF1 on FS 5N04 1585 Comment
  UC585637  Carex abrupta Joseph P. Tracy 1937-7-29 15580 Humboldt in meadow at McKay Camp South Fork Mountain 1676 Comment
  UC562440  Carex amplifolia Joseph P. Tracy 1935-6-23 13986 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC18003  Carex aquatilis var. dives Joseph Prince Tracy 1935-6-8 13948 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  HSC104333  Carex arcta James Regan, Humboldt Redwood Co., LLC 2007-6-22 27 Humboldt Small pond near Fox Creek 61 Comment
  CAS-BOT-BC18077  Carex athrostachya Alice Eastwood; John Thomas Howell 1937-6-23 4801 Humboldt Little Van Duzen River. Comment
  CAS-BOT-BC18076  Carex athrostachya Joseph Prince Tracy 1935-7-23 14140 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  HSC44020  Carex athrostachya Thomas W. Nelson, Jane P. Nelson 1977-7-4 3594 Humboldt Beside pond above Alder Springs 1585 Comment
  CAS-BOT-BC19216  Carex barbarae Henry M. Pollard 1948-7-29 s.n. Humboldt Near Woodson Mine - Near Orleans. Comment
  CAS-BOT-BC19217  Carex barbarae Henry M. Pollard 1945-8-26 s.n. Humboldt Near Orleans Hotel, Klamath River Canyon. Comment
  CAS-BOT-BC19218  Carex barbarae Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC249760  Carex bolanderi Joseph P. Tracy 1923-6-20 6332 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC61628  Carex cusickii Ruby Van Deventer 1959-6-20 Humboldt Humboldt/Del Norte County line, Onion Lake 1220 Comment
  HSC61629  Carex cusickii Ruby Van Deventer 1959-6-20 Humboldt Humboldt/Del Norte County line, Onion Lake Comment
  RSA293172  Carex densa Thomas W. Nelson, Ken Hindley 1978-5-28 4086 Humboldt On McKeown Ranch north of Dinsmore. 762 Comment
  UC303071  Carex densa Joseph P. Tracy 1912-7-31 3906 Humboldt on nw slope of Buck Mountain Northern Coast Ranges, Burr Valley, Buck Mountain 1066 Comment
  UC750613  Carex deweyana subsp. leptopoda Henry M. Pollard 1945-9-1 Humboldt Camp Creek Klamath River Canyon Comment
  UC1103128  Carex echinata Joseph P. Tracy 1935-7-14 14085 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  RSA12426  Carex exsiccata Carl B. Wolf 1934-7-2 5868 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  CAS-BOT-BC20010  Carex feta L. R. Abrams 1918-6-16 7164 Humboldt Willow Creek. Comment
  UC1103576  Carex geyeri Joseph P. Tracy 1938-6-13 15901 Humboldt Horse Mountain 1432 Comment
  UC1103075  Carex globosa Joseph P. Tracy 1933-6-7 12521 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  JEPS80025  Carex hendersonii Joseph P. Tracy 1905-6-25 2202 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  UC1103592  Carex hendersonii J. P. Tracy 1899-4-30 312 Humboldt immediate vicinity Eureka 0 Comment
  CHSC98325  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1982-7-9 7082 Humboldt North Coast Ranges. Junction of Forest Service Road 1S07 and road to Mt. Lassic (Signal Peak). 1767 Comment
  UC562556  Carex integra Joseph P. Tracy 1935-7-23 14139 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC31261  Carex lenticularis var. impressa Joseph Prince Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  HSC7139  Carex leptalea B. D. Rogers 1965-10-2 1021 Humboldt Big Lagoon 0 Comment
  HSC76798  Carex leptopoda L. P. Janeway 1982-6-16 8 Humboldt Near small tributary to Jolly Giant Creek below Arcata High school 9 Comment
  CAS-BOT-BC31583  Carex luzulina var. luzulina Joseph Prince Tracy 1942-6-28 17269 Humboldt In bog at Murphy Meadows, Bald Mountain. 975 Comment
  UC249752  Carex mendocinensis Joseph P. Tracy 1924-6-15 6697 Humboldt Northern Coast Ranges. Near Ruby Creek, on the Willow Creek highway. Comment
  HSC82414  Carex microptera Thomas W. Nelson 1979-7-11 5033 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  HSC73580  Carex multicaulis Gail Newton 1980-7-14 1480 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC73962  Carex multicaulis Gail Newton 1980-6-7 126 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC32133  Carex multicaulis Joseph Prince Tracy 1941-4-11 16857 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  UC152055  Carex multicaulis Joseph P. Tracy 1950-7-1 18958 Humboldt near Friday Camp; Grouse Mountain, Friday Ridge 1219 Comment
  HSC43480  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-9-3 3729 Humboldt Growing along creek drainage N end of pond above Alder Springs 1524 Comment
  HSC44075  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-7-1 2932 Humboldt W of Mount Lassic (Signal Peak) 1677 Comment
  CHSC40169  Carex nudata L. P. Janeway 1984-5-13 777 Humboldt Along the North Fork Yager Creek 18 miles east of the Kneeland P.O. on the Kneeland/Bridgeville Road. 381 Comment
  HSC49245  Carex nudata M. A. Baker 1979-4-27 701 Humboldt Six Rivers National Forest Comment
  UC1103621  Carex nudata Joseph P. Tracy 1933-5-18 12194 Humboldt 6 mi W of Blue Lake (Mad River) 15 Comment
  CAS-BOT-BC119380  Carex obnupta Frank Warrington Peirson 1941-7-28 13108 Humboldt Patrick Point State Park Comment
  JEPS80017  Carex obnupta Joseph P. Tracy 1912-6-16 3702 Humboldt adjacent to salt marsh, Hookton Northern Coast Region, Humboldt Bay, Hookton 0 Comment
  JEPS80019  Carex obnupta Joseph P. Tracy 1910-10-1 3161 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  RSA122793  Carex obnupta H. S. Yates 1936-6-16 5653 Humboldt 0.5 mile southwest of Samoa. Comment
  SD51256  Carex obnupta Darley F. Howe 1961-8-1 3107 Humboldt Under Picea; 3 miles north of Arcata. Comment
  SEINET7569469 Image available Carex obnupta David Castaner 1989-6-19 10249 Humboldt Fern Canyon. Comment
  HSC70166  Carex ovalis Thomas W. Nelson 1978-6-10 4418 Humboldt Behind the Seventh-Day Adventist Church on F St., Eureka Comment
  HSC48035  Carex pachystachya D. H. Norris 1972-6-26 22972 Humboldt Along Grouse Mtn. Rd. about 3 mi. from intersection with Horse Mtn. Rd. Comment
  UC194809  Carex praticola Joseph P. Tracy 1914-5-3 4421 Humboldt Eureka Northern Coast Region 0 Comment
  UC1115814  Carex preslii Joseph P. Tracy 1938-6-9 15878 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC118823  Carex preslii Joseph Prince Tracy 1932-6-19 10242 Humboldt Dinsmore's Ranch: on Van Duzen River opposite Buck Mountain. 762 Comment
  HSC70467  Carex rossii J. P. Tracy 1904-5-1 2041 Humboldt Eureka 0 Comment
  SEINET10709360  Carex rossii Joseph P. Tracy 1949-5-8 Tracy 18295 Humboldt Open flat by old Strong's District School House, 5 miles east of town. 61 Comment
  CHSC107144  Carex scopulorum var. bracteosa R. E. Brainerd 2009-7-23 1566 Humboldt North Coast Range, South Fork Mountain; 19.6 miles west-northwest of Hayfork. UTM Zone 10 453477E 4494945N. 1661 Comment
  RSA794382  Carex subbracteata P. F. Zika 2011-7-3 25493 Humboldt Titlow Hill Road, 3 road miles southeast of Route 299 at Berry Summit, 1 air km southwest of Horse Mountain. Outer North Coast Ranges. 1190 Comment
  HSC7080  Carex subbracteata B. D. Rogers 1965-9-10 1014 Humboldt Humboldt State College Reservoir 61 Comment
  HSC102234  Carex subfusca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1156 Humboldt Patterson Meadows 1555 Comment
  UC562559  Carex subfusca Joseph P. Tracy 1935-6-23 13984 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  SEINET4110860  Carex unilateralis D. W. Taylor 2004-1 19135 Humboldt Clear Lake, Titlow Hill Road. 1493 Comment
  CAS-BOT-BC115542  Carex unilateralis Joseph Prince Tracy 1933-6-9 12539 Humboldt Fortuna, Bed of winter pool. 18 Comment
  HSC45970  Carex vesicaria J. P. Smith, Steve Selva 1970-6-30 4133 Humboldt Comment
  JEPS79840  Carex vesicaria var. major Joseph P. Tracy 1934-7-13 13388 Humboldt Dow's Prairie 60 Comment
  CAS-BOT-BC248911  Castilleja M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  HSC103410  Castilleja affinis subsp. affinis Kaylea Eickhoff, Cara M. Witte 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  JEPS9134  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  JEPS8683  Castilleja applegatei subsp. martinii Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC23104  Castilleja applegatei subsp. pinetorum D. E. Anderson 1965-5-8 3638 Humboldt N of Willow Creek along Rd. on E side of Trinity River Comment
  HSC98627  Castilleja applegatei subsp. pinetorum Cara Witte 2008-7-11 875 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  SD62425  Castilleja applegatei subsp. pinetorum Lincoln Constance, Elwood Molseed, Robert Ornduff 1961-7-19 3701 Humboldt Open ridge easr of Hinkey Summit. Santa Rosa Range, Humboldt National Forest Comment
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Mar 3 2014
  HSC56005  Castilleja arachnoidea Overton, Butler 1979-7-31 11467 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  SEINET12288574  Castilleja douglasii H. P. Chandler 1901-1 1485 Humboldt North Coast Ranges, Klamath River 427 Comment
  HSC76191  Castilleja miniata Overton, Butler 1979-7-24 9792 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC38886  Castilleja miniata J. O. Sawyer 1970-6-25 2300 Humboldt 1646 Comment
  JEPS25051  Castilleja pruinosa Joseph P. Tracy 1912-7-26 3862 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC98020  Castilleja pruinosa Cara Witte 2007-7-11 513 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  JEPS103930  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-8 7872 Humboldt 2.8 mi NE of Gasquet, on Old Gasquet Toll Rd. Comment
  CAS-BOT-BC64975  Ceanothus arcuatus D. H. Wilken; E. L. Painter 2007-6-4 16738 Humboldt Titlow Road, 1.3 linear km SW of summit of Horse Mountain, W of head of Horse Mtn Crk. 1325 Comment
  SEINET10778147  Ceanothus arcuatus Dieter H. Wilken, E. L. Painter 2007-6-4 Wilken 16738 Humboldt Titlow Rd, 1.3 linear km SW of summit of Horse Mtn, W of head of Horse Mtn Crk. 1325 Comment
  HSC36640  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1901 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC97479  Ceanothus cordulatus Cara Witte 2007-5-29 135 Humboldt Along National Forest 1 on Kinsey Ridge. 1278 Comment
  RSA600899  Ceanothus foliosus var. foliosus Louis C. Wheeler 1959-8-1 7619 Humboldt Queens Peak Mine. Comment
  UC1193319  Ceanothus incanus R. H. Neuns 1950-7-13 130 Humboldt 3 miles south of Alder Point 548 Comment
  UC275284  Ceanothus incanus Joseph P. Tracy 1924-5-11 6677 Humboldt Bull Creek Northern Coast Ranges 121 Comment
  CAS-BOT-BC50050  Ceanothus incanus Doris K. Kildale 1927-6-25 3579 Humboldt at Thorn near schoolhouse road Comment
  UC1198007  Ceanothus integerrimus Joseph P. Tracy 1935-5-25 13878 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC51216  Ceanothus parryi Mrs. H. C. Cantelow 1935-5-30 829 Humboldt N. of Garberville Comment
  CAS-BOT-BC51218  Ceanothus parryi C. Hart Merriam 1920-8-30 s.n. Humboldt Garberville Comment
  HSC36677  Ceanothus parryi R. Sutherland 1975-5-5 7 .5575 Humboldt Near Ettersburg Rd. 457 Comment
  HSC43212  Ceanothus parryi R. Sutherland 1975-4-13 0 .13475 Humboldt 2 mi NE of Briceland along county rd. 183 Comment
  HSC18322  Ceanothus pumilus Class 1937-5-12 Humboldt Hoopa Comment
  UC1094482  Ceanothus pumilus R. E. Nelson 1955-5-14 162 Humboldt about 5 mi w Miranda; Quad. 29-C-2, w of Miranda 762 Comment
  CAS-BOT-BC52981  Ceanothus thyrsiflorus Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  CAS-BOT-BC52992  Ceanothus thyrsiflorus Terry Hines; Ellen Purcell; Nina Williams 1988-5-1 66 Humboldt Korbel turnoff, 1/2 mile from weigh station on Hwy 299. 60 Comment
  CAS-BOT-BC52999  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11091 Humboldt 1 1/2 mi. N. Loleta along Redwood Highway 22 Comment
  HSC18337  Ceanothus thyrsiflorus H. E. Parks Apr 1934 4229 Humboldt Spruce Cove, Trinidad 64 Comment
  HSC69626  Ceanothus thyrsiflorus R. Kalal 1980-5-8 33 Humboldt Arcata oxidation ponds 2 Comment
  RSA25754  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11089 Humboldt Summit of Trinidad Head. 46 Comment
  SBBG4534  Ceanothus thyrsiflorus var. thyrsiflorus H. and M. Dearing 1933-5-17 977 Humboldt N of Big Lagoon Comment
  SD42558  Ceanothus velutinus Carl B. Wolf 1937-8-13 9232 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  UC1193275  Ceanothus velutinus R. H. Neuns 1950-7-13 128 Humboldt 3 miles south of Alder Point 548 Comment
  UC582508  Centaurea X moncktonii Joseph P. Tracy 1933-8-22 12973 Humboldt at Eureka Comment
  UC204750  Centaurea cyanus Joseph P. Tracy 1918-7-1 4963 Humboldt along river from South Fork to Scotia, Holmes Flat Eel River; North Coast Ranges, , Holmes Flat 60 Comment
  UC1222948  Centaurea solstitialis Joseph P. Tracy 1948-9-20 18216 Humboldt vicinity of Hosler Creek; Hoopa Valley, Hosler Creek 91 Comment
  UC1225826  Centaurium erythraea Joseph P. Tracy 1948-9-26 18236 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA69802  Centaurium muehlenbergii F. W. Peirson 1941-7-29 13110 Humboldt Stephens Grove State Park. Comment
  BLMAR202  Cephalanthera austiniae Jennifer Anthony-Wheeler 1996-7-9 202 Humboldt Pilot ridge. 1280 Comment
  HSC59895  Cephalanthera austiniae M. A. Baker 1979-6-28 943 Humboldt S of Mill Creek Comment
  CAS-BOT-BC384898  Cerastium arvense Doris K. Kildale 1927-5-15 3245 Humboldt Petrolia, Mattole River Comment
  HSC98768  Cerastium fontanum subsp. vulgare Cara Witte 2007-8-8 621 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  POM126513  Cercis occidentalis Joseph P. Tracy 1922-4-30 6003 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  CAS-BOT-BC85653  Chamaecyparis lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762 Comment
  UCSB24022  Chamaecyparis lawsoniana Howe, J. 1938-3-30 Humboldt Humboldt Co., California Comment
  UC1198975  Chamaesyce serpyllifolia Joseph P. Tracy 1925-11-1 7299 Humboldt along Eel River (from South Fork to Scotia, Shively); Northern Coast Ranges 60 Comment
  UC275332  Chamaesyce serpyllifolia Joseph P. Tracy 1923-9-16 6555 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC40253  Chamerion angustifolium subsp. circumvagum Linda M. Barker 1976-8-24 1682 Humboldt 3 mi. W of Arcata Comment
  HSC54860  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-7-25 10761 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC76618  Chamerion angustifolium subsp. circumvagum John Demarinis 1981-7-21 884 Humboldt Near Table Bluff 38 Comment
  HSC55127  Cheilanthes gracillima G. L. Clifton, Terry Griswold 1979-8-1 11932 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC98769  Cheilanthes gracillima Cara Witte 2007-8-9 628 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .2 miles from intersection with Forest Service Road 4N32B. 1413 Comment
  CAS-BOT-BC473032  Chenopodium macrospermum var. farinosum Edward Lee 1934-8-17 1151 Humboldt East shore of Big Lagoon, 35 miles N of Eureka 3 Comment
  UC673035  Chenopodium macrospermum var. halophilum Harold E. Parks and Joseph P. Tracy 1934-10-13 11151 Humboldt Big Lagoon; on shore 3 Comment
  UC198570  Chenopodium pumilio Joseph P. Tracy 1916-9-5 4770 Humboldt 4 mi above mouth; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC205454  Chenopodium pumilio Joseph P. Tracy 1919-9-13 5200 Humboldt Willow Creek Northern Coast Ranges (near mouth, tributary of Eel River) 152 Comment
  HSC71674  Chimaphila menziesii M. A. Baker 1980-6-26 2390 Humboldt Near Sims Creek 610 Comment
  HSC45430  Chimaphila menziesii Thomas W. Nelson, Jane Nelson Jul 1977 3565 Humboldt Along N side of ridge between Bear & Blanket Creeks 1494 Comment
  UC1225859  Chlorogalum pomeridianum var. pomeridianum Joseph P. Tracy 1946-7-7 17611 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC36480  Chrysolepis chrysophylla Ella Dales Cantelow 1938-10-22 2180 Humboldt Near Red Cap Creek, SW of Orleans Comment
  UC672860  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1940-8-25 16715 Humboldt Bald Mountain 975 Comment
  UC1198647  Cicendia quadrangularis Joseph P. Tracy 1930-5-18 8696 Humboldt Rohnerville Golf Course 152 Comment
  SBBG25852  Cirsium arvense D. Myrick 1978-8-16 Humboldt Prairie Crk Redwoods State Park 152 Comment
  SEINET3403284  Cirsium arvense R. W. Spellenberg, N. Zucker 2011-7-24 14302 Humboldt 8 km north of Ferndale on Grizzly Bluff Rd. 8 Comment
  UC582530  Cirsium arvense Joseph P. Tracy 1933-8-13 12963 Humboldt Arcata Bottom 15 Comment
  UCD130610  Cirsium douglasii Gordon Leppig 1998-6-1 879 Humboldt Horse Mountain, Titlow Hill Rd. 1219 Comment
  HSC47962  Cirsium douglasii var. breweri Brad Klipfel 1974-8-2 518 Humboldt Horse Mtn. Comment
  UC302287  Cirsium occidentale var. venustum Joseph P. Tracy 1926-6-20 7662 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 914 Comment
  SEINET11833946  Cirsium remotifolium J. P. Tracy 1947-1 17711 Humboldt Carlotta, by old Strong's District School House, 5 mi E of town 61 Comment
  JEPS30563  Cirsium remotifolium var. odontolepis Peter H. Raven, R. Snow 1958-7-21 13654 Humboldt 7.2 mi nw of Capetown (on road to Ferndale) Comment
  HSC32535  Cirsium vulgare Thomas W. Nelson 1973-9-3 1127 Humboldt McKeown Ranch N of Dinsmore Comment
  UCD104030  Clarkia amoena James P. Smith 1973-5-26 6827 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC169900  Clarkia concinna subsp. concinna Mrs. M. H. Manning 1901-1 75 Humboldt near Hupa Comment
  UC20004  Clarkia concinna subsp. concinna Harley P. Chandler June, 1901 1325 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC63806  Clarkia concinna subsp. concinna M. A. Baker 1979-5-23 755 Humboldt Along Bair Rd., Hoopa Indian Reservation Comment
  UC1222853  Clarkia concinna subsp. concinna Joseph P. Tracy 1950-5-24 18691 Humboldt between McDonald's and Hopland (along old highway) Comment
  UC183772  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1912-7-31 3907 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  UC702560  Clarkia purpurea C. C. and S. K. Harris, J. P. Tracy 1942-6-22 1261 Humboldt 7 mi n and 5 mi e Willow Creek 165 Comment
  CAS-BOT-BC172503  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1926-6-9 2141 Humboldt Horse Mountain 1219 Comment
  UC562525  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1933-7-3 12634 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1196978  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1937-7-5 15372 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1196980  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1914-6-14 4498 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek 60 Comment
  JEPS43563  Clarkia purpurea subsp. viminea W. L. Jepson 1902-7-4 1982 Humboldt beneath The Maul Oaks; Hupa Valley Comment
  BLMAR461  Claytonia exigua Jennifer Anthony-Wheeler 2008-3-7 461 Humboldt Samoa dunes, growing in Samoa #3 Endangered Plant Protection Area 12 Comment
  HSC74245  Claytonia exigua subsp. exigua M. A. Baker 1980-7-11 2806 Humboldt Near Red Mtn. 1433 Comment
  UC275327  Claytonia exigua subsp. glauca Joseph P. Tracy 1923-4-15 6188 Humboldt Redwood Creek;at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  HSC44425  Claytonia lanceolata Brad Klipfel 1975-5-30 648 Humboldt Horse Mtn. Comment
Read comments
Sep 23 2019
  UC184791  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1913-6-13 4095 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC494168  Claytonia perfoliata subsp. perfoliata H. E. Parks, J. P. Tracy 1930-5-25 877 Humboldt Laribee Valley Comment
  UC161028  Claytonia rubra subsp. depressa Joseph P. Tracy 1911-5-21 3188 Humboldt Eureka; Northern Coast Region Comment
  UC161029  Claytonia rubra subsp. depressa Joseph P. Tracy 1911-4-30 3175 Humboldt Eureka; Northern Coast Region Comment
  HSC32310  Claytonia rubra subsp. rubra D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5662 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC39620  Claytonia rubra subsp. rubra Thomas W. Nelson 1976-6-15 2723 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  CHSC10779  Claytonia sibirica Lowell Ahart 1968-6-1 Humboldt Near Pepperwood. 45 Comment
  POM117947  Claytonia sibirica Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  SBBG1945  Claytonia sibirica H. and M. Dearing 1933-5-16 229 Humboldt Weott Comment
  HSC59687  Claytonia sibirica George Kirn 1977-10-3 Humboldt Vicinity of Jolly Giant Creek, 1/4 mi. E of HSU campus 46 Comment
  UC672991  Claytonia sibirica Joseph P. Tracy 1933-5-20 12273 Humboldt near Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  HSC99241  Claytonia washingtoniana C. E. Fellows 1971-6-7 452 Humboldt Clam Beach Bluffs, 9/10 mi. N of jct. of Little River Rd. and Central Ave., E side of Little River Rd. Comment
  CAS-BOT-BC499338  Clintonia andrewsiana Doris K. Kildale 1928-6-10 5083 Humboldt Strongs Station, Van Duzen River Comment
  JEPS61594  Clintonia andrewsiana W. L. Jepson 1932-7-29 16444 Humboldt Van Duzen River, Grizzly Flat Van Duzen River; , Grizzly Flat Comment
  HSC89590  Collinsia heterophylla M. Roantree 1985-5-24 58 Humboldt S of Trinidad Head summit near cross Comment
  HSC96243  Collinsia linearis Laurel Goldsmith, Wanda Naylor 2005-6-8 4 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  JEPS6199  Collinsia linearis Joseph P. Tracy 1932-7-12 10439 Humboldt Corral Prairie, open places Corral Prairie; Trinity Summit 1584 Comment
  UC902215  Collinsia linearis Joseph P. Tracy 1947-7-5 17790 Humboldt ridge w of Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  JEPS13757  Collinsia linearis Frank W. Gould 1939-5-30 831 Humboldt Horse Mtn 762 Comment
  SEINET12268979  Collinsia linearis J. P. Tracy 1950-1 18969 Humboldt Happy Camp Mountain, Trinity Summit on ridge 2 mi E of Groves Prairie 1524 Comment
  UC727681  Collinsia linearis Milo S. Baker 1946-6-15 11486 Humboldt near Head of Willow Creek Canyon (Trinity Highway); Trinity Highway Comment
  BLMAR629  Collinsia parviflora Jennifer Wheeler 2011-6-15 629 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  HSC41245  Collinsia parviflora Brad Klipfel 1974-5-27 391 Humboldt Horse Mtn. Comment
  UC147864  Collinsia parviflora Joseph P. Tracy 1908-6 2703 Humboldt Valley of Van Duzen River opposite Buck Mountain (Northern Coast Ranges); , Valley of Van Duzen River 762 Comment
  HSC96206  Collinsia parviflora J. McIntire, S. Lyon 2005-6-8 4 Humboldt Cold Springs Camp, 7.4 mi. S of Hwy. 299 on F.S. Rd. NF1 1402 Comment
  UC1197856  Collomia grandiflora Joseph P. Tracy 1933-8-30 13051 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC45408  Collomia heterophylla Thomas W. Nelson, Jane Nelson 1977-6-19 3517 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  UC1197841  Collomia heterophylla Joseph P. Tracy 1940-7-7 16668 Humboldt rocky bank Grouse Mt. 1463 Comment
  HSC97228  Collomia tinctoria Kiera A. Freeman, Heather J. Perry 2007-6-11 6 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1372 Comment
  HSC102167  Collomia tracyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1079 Humboldt Patterson Meadows 1555 Comment
  HSC45409  Collomia tracyi Thomas W. Nelson, Jane Nelson 1977-6-19 3513 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  RSA304452  Collomia tracyi D. H. Wilken, C. Donahue 1976-7-16 12708 Humboldt Horse Mountain Natural Area, north of Berry Summit 1311 Comment
  UC133660  Collomia tracyi Joseph P. Tracy 1908-6 2837 Humboldt nw talus slope Northern Coast Ranges, Buck Mountain 914 Comment
  NY643138  Convolvulus arvensis H. P. Chandler 06 1901 1463 Humboldt Klamath River 365.8 Comment
  CDA30705  Conyza canadensis M. K. Beyers, I. Shepardson 2009-9-13 254 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  UC1196210  Coptis laciniata Joseph P. Tracy 1923-4-15 6194 Humboldt Northern Coast Ranges, Bald Mountain, near the Bald Mt. House Bald Mountain; Northern Coast Ranges, Bald Mountain 914 Comment
  HSC99806  Corallorhiza maculata T. Jimerson, J. Pageau 1979-6-13 546 Humboldt Near Onion Lake, close to the town of Orleans. 549 Comment
  RSA183520  Corallorhiza striata D. E. Anderson 1965-5-15 3684 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  UC1409054  Cordylanthus maritimus subsp. palustris Robert F. Thorne and P. Everett 1965-8-7 35209 Humboldt Samoa Peninsula 0 Comment
  HSC100234  Cordyline australis J. P. Smith 2010-5-29 12891 Humboldt Eureka; Near intersection of West Del Norte St. and Railroad Ave. Comment
  CAS-BOT-BC209755  Cornus glabrata L. R. Abrams 1918-6-16 7162 Humboldt Willow Creek Comment
  UC205481  Cornus glabrata Joseph P. Tracy 1919-9-14 5210 Humboldt at Lack Pond (Trinity R. Valley near Willow Creek); Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC212010  Cornus nuttallii Doris K. Kildale 1925-8-13 1134 Humboldt Willow Creek Flat, near bluff on Trinity River 152 Comment
  UC1196911  Cornus nuttallii Joseph P. Tracy 1908-6-9 2675 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC412923  Cornus nuttallii P. E. Goddard 1906-6 692 Humboldt Lasseck Peak Comment
  UC906755  Cornus nuttallii Joseph P. Tracy 1945-11-11 17516 Humboldt along Trinity Hwy. Willow Creek Canyon 762 Comment
  UC502981  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8654 Humboldt opposite Buck Mt. (on Van Duzen R., Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  UC1197933  Corylus californica Joseph P. Tracy Jul 16-19 1930 9058 Humboldt South Fork Mountain, along summit near Blake lookout Northern Cosast Ranges 1706 Comment
  HSC104408  Corylus cornuta subsp. californica Adam N. Canter 2017-4-1 5 Humboldt Eureka, Fort Humboldt State Historic Park, west-facing bluffs along east side of Hwy. 101 Comment
  RSA167384  Cotula australis Joseph P. Tracy 1943-4-10 17414 Humboldt Eureka Comment
  HSC37853  Cotula coronopifolia Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  UC1192141  Cotula coronopifolia Malcolm A. Nobs, S. Galen Smith 1949-8-3 1163 Humboldt 1 mi s of Fields Landing; Eel River Valley Comment
  CAS-BOT-BC291341  Cotula coronopifolia C. L. Hitchcock; J. S. Martin 1939-7-14 5434 Humboldt Above pier at Shelter Cove Comment
  HSC5426  Cotula coronopifolia R. Spellenberg 1964-6-15 412 Humboldt Along egde of Humboldt Bay, on the south side of Arcata Comment
  RSA246787  Cotula coronopifolia R. F. Thorne, Percy C. Everett 1965-8-8 35272 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  HSC57181  Crepis acuminata Griswold, Butler 1979-7-10 6227 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  JEPS27144  Crepis capillaris H. E. Parks August, 1941 24189 Humboldt vicinity of Trinidad Comment
  JEPS36416  Crepis capillaris W. L. Jepson 1932-8-8 16531 Humboldt near Dyerville; Perrott Creek 304 Comment
  UC1787278  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6992 Humboldt North coast redwood area; CA-36, along the Van Duzen R. 19.6 mi E of US-101 (W of Bar W rd). 137 Comment
  CAS-BOT-BC290587  Crepis capillaris L. R. Abrams 1922-6-25 8234 Humboldt 2 mi. south of Fortuna Comment
  RSA47135  Crepis capillaris Doris K. Kildale 1925-6-29 938 Humboldt Van Duzen R. near Alton Comment
Read comments
Jul 10 2009
  UC165199  Crepis monticola Joseph P. Tracy 1908-6 2915 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  UC581730  Crepis occidentalis Joseph P. Tracy 1935-7-30 14387 Humboldt Salmon Summit; at top 2112 Comment
  HSC74027  Crepis pleurocarpa Gail Newton 1980-7-11 1313 Humboldt Near Red Mtn. 1341 Comment
  POM356344  Crepis setosa H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  HSC5459  Crocidium multicaule H. E. Parks 1930-5-25 867 Humboldt Laribee Valley 762 Comment
  HSC70377  Crocidium multicaule M. A. Baker 1980-6-7 1787 Humboldt Near Brush Mtn. 1128 Comment
  JEPS22553  Crocidium multicaule Joseph P. Tracy 1933-5-21 12212 Humboldt McClellan Mountain 822 Comment
  UC31346  Crocidium multicaule C. C. Marshall 1888-1 Humboldt Comment
  HSC46059  Crocosmia X crocosmiiflora Catherine Chin 1978-8-5 103 Humboldt Arcata, at A and 11th Sts. Comment
  HSC62776  Crocus speciosus M. Dean Griswold Jr. 1979-4-28 34 Humboldt W side of old Hwy. 101 Comment
  HSC7973  Croton setiger H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 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
  UC1239664  Cryptantha leiocarpa Joseph P. Tracy 1904-7-4 2112 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC102630  Cryptantha torreyana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1615 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC57192  Cryptantha torreyana Griswold, Butler 1979-7-11 6945 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  POM11952  Cryptantha torreyana Joseph P. Tracy 1918-7-5 5013 Humboldt White Thorn Valley. 305 Comment
  UC175496  Cryptantha torreyana Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5730 Humboldt Supply Creek North Coast Ranges, Hupa Valley Comment
  UC1076384  Cupressus lawsoniana H. L. Mason 1932-7-21 7111 Humboldt on road Arcata to Weaverville (e slope of Southfork Mts.); Southfork Mts. Comment
Read comments
Jul 25 2018
  HSC63068  Cuscuta salina David Wheeler 1979-5-28 151 Humboldt S end of sewage oxidation ponds Comment
  UC1191663  Cuscuta salina var. major Malcolm A. Nobs and S. Galen Smith 1949-8-3 1202 Humboldt about 2 mi n Eureka; Humboldt Bay Comment
  JEPS47121  Cuscuta suaveolens Joseph P. Tracy 1918-9-29 5113 Humboldt 2 mi above mouth of South Fork of Eel River (Myers Ranch); Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC38430  Cynosurus echinatus Dennis Anderson, J. P. Smith 1971-6-18 - 1061 Humboldt Chezem Rd., 3 mi. E of bridge over Redwood Creek Comment
  HSC79447  Cynosurus echinatus Kenneth Clark 1980-4-18 579 Humboldt Access trail to Dead Man's Gulch, Shelter Cove. 122 Comment
  HSC89500  Cynosurus echinatus M. Roantree 1985-5-30 68 Humboldt West side of Trinidad Head Comment
  SBBG53060  Cynosurus echinatus R. N. Philbrick, J. R. Haller 1976-6-25 4 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  HSC7210  Cyperus eragrostis D. E. Anderson 1963-9-29 2848 Humboldt Fish Lake Comment
  RSA365064  Cyperus eragrostis J. P. Smith, Steve Selva 1970-6-14 3823 Humboldt Along Calif. 96 at Whitmore Creek. 152 Comment
  UC668035  Cyperus eragrostis Joseph P. Tracy 1932-10-30 10897 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  HSC97462  Cystopteris fragilis Cara Witte 2007-5-23 103 Humboldt Near Grouse Mountain. Along 4N32. Approximately 0.5 miles south of intersection with 5N04 and 4N32E. 1398 Comment
  HSC14680  Cytisus multiflorus R. A. Magie 1964-5-3 56 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  HSC14665  Cytisus scoparius var. andreanus S. S. Stutz 1963-5-18 54 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  CAS-BOT-BC189763  Dactylis glomerata Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC189766  Dactylis glomerata Henry M. Pollard 1948-7-28 s.n. Humboldt Roadside near Orleans. Comment
  HSC9530  Dactylis glomerata R. D. Zortman 1963-4-14 30 Humboldt 5.0 mi. NE of Arcata, off Warren Creek Road. 91 Comment
  HSC9539  Dactylis glomerata E. W. Styskel 1963-5-16 25 Humboldt 3.0 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  HSC72622  Danthonia californica J. P. Smith 1977-7-3 9231 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  UC1152019  Danthonia unispicata Joseph P. Tracy 1951-7-26 19593 Humboldt Redwwod Creek Board Camp Mountain (extreme head, n side of mt.) Comment
  HSC46019  Daucus carota Catherine Chin 1978-8-5 94 Humboldt 7th & A St., Arcata Comment
  UC32463  Daucus pusillus Harley P. Chandler May, 1901 1154 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  CAS-BOT-BC9032  Delphinium decorum subsp. tracyi Doris K. Kildale 1928-5-19 5213 Humboldt Chalk Mountain Comment
  UC467717  Delphinium decorum subsp. tracyi Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5788 Humboldt Trinity Summit Comment
  HSC96221  Delphinium decorum subsp. tracyi Eric Schori, Kazuyuki Ishimaru 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  HSC97177  Delphinium decorum subsp. tracyi Benjamin Hart, Erin Lonergan 2007-6-4 2 Humboldt Grouse Mtn., Coldsprings Camp, 6.5 mi. up Titlow Hill Rd. 1372 Comment
  UC183075  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4148 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  CAS-BOT-BC10311  Delphinium hesperium Harley Pierce Chandler 1901-6-1 1410 Humboldt Kalmath River 304 Comment
  CAS-BOT-BC9951  Delphinium nudicaule Doris K. Kildale 1927-3-20 2928 Humboldt Philipsville, south fork of Eel River Comment
  HSC25007  Delphinium nudicaule D. E. Anderson 1965-5-1 3589 Humboldt W facing sheer cliff above Trinity River along Hwy. 96 Comment
  HSC48947  Delphinium nudicaule M. A. Baker 1979-5-15 733 Humboldt Along old bed of Bluff Creek Comment
  SEINET12099565  Delphinium nudicaule J. P. Tracy 1950-1 18815 Humboldt Mail Ridge, N of Harris 7 mi, "Huestis Rock" on NE side of Ridge Comment
  UC184715  Delphinium nudicaule Joseph P. Tracy 1913-6-14 4128 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  HSC31440  Delphinium nuttallianum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5558 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC64263  Delphinium nuttallianum J. O. Sawyer, M. A. Ericksen 1979-6-23 3398 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC74074  Delphinium trolliifolium Joyce Walker 1980-5-7 Humboldt Four Mile Creek Comment
  POM299320  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon near Orick Comment
  SD48460  Delphinium trolliifolium E. K. Balls 1957-5-25 22603 Humboldt 4.5 mi. sw. of Dinsmores, State Hwy. 36. 822 Comment
  UC1222576  Delphinium trolliifolium Joseph P. Tracy 1950-6-8 18721 Humboldt ridge summit near Mountain Glen Ranch (7 mi s of Ferndale); Bear River Ridge Comment
  UC13904  Delphinium trolliifolium W. C. Blasdale 1896-6-7 Humboldt Graham's Ranch Comment
  UCD61140  Deschampsia cespitosa Joseph P. Tracy 1937-8-12 15642 Humboldt Snow Camp. 1402 Comment
  UCD61369  Deschampsia cespitosa A. H. Murphy 1951-5-29 48 Humboldt About 1 mile northeast of Ocean House, along County Road, Cape Mendocino Area. Comment
  CHSC31326  Deschampsia cespitosa subsp. holciformis Mark Stopher 1980-6-4 94 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC102187  Deschampsia danthonioides M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1101 Humboldt Andy's Camp 1564 Comment
  UC552716  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC201768  Deschampsia elongata J. O. Sawyer; R. J. Cole 1977-7-3 3019 Humboldt Environs of Mud Spring. Big Hill Road (F.S. 8N01) 1524 Comment
  CAS-BOT-BC201778  Deschampsia elongata Doris K. Kildale 1928-7-1 5309 Humboldt French Camp - Bald Hills - Orick - Martin's ferry road Comment
  HSC76544  Deschampsia elongata Teresa Prendusi 1981-7-7 120 Humboldt Near Slate Creek Butte. 1158 Comment
  SEINET3071060 Image available Deschampsia holciformis Joseph P. Tracy 1934-7-20 13465 Humboldt Big Lagoon Comment
  HSC58010  Descurainia incana G. L. Clifton 1979-7-31 11806 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC146101  Dicentra formosa J. P. Tracy 1903-8-4 1928 Humboldt immediate vicinity Eureka 0 Comment
  RSA273432  Dicentra formosa subsp. formosa M. A. Baker 1977-4-23 176 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  UCD95519  Dicentra formosa subsp. formosa P. B. Kennedy 1929-6-14 s.n. Humboldt Arcata, Range of California Barrel Co. Comment
  UC1116210  Dicentra uniflora Joseph P. Tracy 1942-6-23 17253 Humboldt near Water-dog Lakes (Trinity Summit); Trinity Summit 1828 Comment
  CAS-BOT-BC253636  Dichanthelium acuminatum subsp. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt Bank of S Fork Eel River at Highway 101, 5 miles S of Garberville Comment
  UC1198182  Dichelostemma X venustum Joseph P. Tracy 1927-5-21 8066 Humboldt s end Humboldt Bay; Salmon Creek Valley 15 Comment
  UC176624  Dichelostemma X venustum Joseph P. Tracy 1913-6-26 4351 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  JEPS64174  Dichelostemma capitatum Joseph P. Tracy 1925-5-30 7028 Humboldt Laribee Valley Northern Coast Ranges 701 Comment
  JEPS64151  Dichelostemma capitatum Milo S. Baker 137 Humboldt South Fork Yager Creek 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
  SEINET10872226  Dichelostemma ida-maia Mary Merello 1993-6-19 Merello 662 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  CAS-BOT-BC501021  Dichelostemma ida-maia Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  CAS-BOT-BC501025  Dichelostemma ida-maia M. S. Jussel 1931-5-2 s.n. Humboldt Eureka Comment
  CAS-BOT-BC501030  Dichelostemma ida-maia Alice Eastwood; John Thomas Howell 1937-6-22 4729 Humboldt Near Alder Point Comment
  JEPS5678  Dichelostemma ida-maia Milo S. Baker 1923-7-28 139 Humboldt South Fork Yager Creek Comment
  JEPS5679  Dichelostemma ida-maia Milo S. Baker 1923-7-20 47 b Humboldt near head of Yager Creek Comment
  SJSU912  Dichelostemma ida-maia J. W. Tilden 1946-6-20 1008 Humboldt Bluff Creek c. 1.5 mi above junction with Klamath River Comment
  HSC20641  Digitalis purpurea F. Morrell 1949-5-17 27 Humboldt Blue Lake Comment
  HSC69691  Digitalis purpurea R. Kalal 1980-5-18 24 Humboldt Hwy. 101, 0.5 mi. W of Orick 6 Comment
  HSC85760  Dodecatheon hendersonii R. Earing, C. Cavanaugh, C. Collins 1987-3-6 3 Humboldt Gray's Falls Campground, approx. 10 mi. E of Willow Creek on Hwy. 299, along the Trinity River. 244 Comment
  UC1199179  Draba verna Joseph P. Tracy 1932-5-1 9841 Humboldt along Van Duzen River (Alton); North Coast Ranges, along Van Duzen River 30 Comment
  HSC59494  Drosera rotundifolia M. A. Ericksen 1979-4-21 213 Humboldt Big Lagoon County Beach, ca. 90 yards from the Rd. in center of bog. Comment
  HSC48406  Drymocallis lactea var. lactea Brad Klipfel 1973-6-10 107 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57624  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-7-25 10758 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  SEINET6424490 Image available Dryopteris dilatata Hicks, Carpenter 1977-7-12 Humboldt Prairie Creek State Park Comment
  HSC91599  Dryopteris expansa E. Mackey 1987-8-29 Humboldt Patrick's Pont State Park, by bridge over Penn Creek Comment
  HSC6461  Dudleya farinosa D. E. Anderson 1961-9-2 1773 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC100405  Echinospermum Carl C. Marshall Jun 1886 317 Humboldt Trail E of Hoopa. Comment
  UC1103655  Eleocharis macrostachya Joseph P. Tracy 1935-8-25 14750 Humboldt Stone Lagoon 3 Comment
  HSC7308  Eleocharis macrostachya R. L. Jarvis 1962-4-7 11 Humboldt E of Hwy. 101, 4 mi. S of Eureka 0 Comment
  HSC96566  Eleocharis pachycarpa Gordon Leppig 1997-6-19 449 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  CAS-BOT-BC113206  Eleocharis parishii Doris K. Kildale 1927-7-3 3664 Humboldt Willow Creek Flat, swampy outflow from spring. Comment
  HSC58814  Eleocharis quinqueflora G. L. Clifton, Griswold 1979-8-1 12054 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC98996  Eleocharis quinqueflora Cara Witte 2008-7-16 925 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  CAS-BOT-BC227343  Elymus elymoides Joseph P. Tracy 1935-7-28 14317 Humboldt Trinity Summit. Head of Devil's Hole 1828 Comment
  HSC70405  Elymus glaucus M. A. Baker 1980-6-7 1840 Humboldt Near Ammon Creek 732 Comment
  RSA10016  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8215 Humboldt Stone Lagoon Comment
  HSC103977  Elymus mollis subsp. mollis C. Reynolds 2015-4-12 34 Humboldt Along Freshwater Beach, close to wave slope, south of the Kuchel Visitor Center 3 Comment
  CAS-BOT-BC234112  Elymus multisetus Joseph P. Tracy 1933-7-25 12893 Humboldt Grouse Mountain 1524 Comment
  HSC33094  Empetrum nigrum J. P. Smith 1975-3-31 8048 Humboldt Megwill Point on Elk Head, just N of College Cove Comment
  HSC56983  Epilobium brachycarpum Overton, Marvin Butler 1979-7-23 9524 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC314620  Epilobium campestre Joseph P. Tracy 1923-6-20 6341 Humboldt Miranda 91 Comment
  UC562519  Epilobium campestre Joseph P. Tracy 1934-7-9 13349 Humboldt Dobbyn Creek 152 Comment
  JEPS31509  Epilobium campestre Joseph P. Tracy 1938-7-5 16009 Humboldt flat by old Strong's District School House (5 mi e of town); Carlotta 45 Comment
  HSC54703  Epilobium ciliatum Overton, Butler 1979-7-26 10026 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  POM225511  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-12 14379 Humboldt Willow Creek Comment
  UC1122558  Epilobium ciliatum subsp. ciliatum H. L. Person 1932-7-16 Humboldt hwy n Trinidad; Rock Point Quadrangle Comment
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Aug 3 2007
  UC583053  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-12 14379 Humboldt Willow Creek Comment
  RSA755161  Epilobium ciliatum subsp. glandulosum Robert F. Thorne, P. Everett 1965-8-9 35347 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  UC902177  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1947-7-5 17810 Humboldt near Box Camp (along stream); Trinity Summit 1463 Comment
  UC562516  Epilobium densiflorum Joseph P. Tracy 1934-7-9 13352 Humboldt bed of dry pond Dobbyn Creek 152 Comment
  HSC103079  Epilobium minutum Sydney Carothers 2014-6-12 12 Humboldt Six Rivers National Forest, Lassics Botanical Area, Red Lassic. Near upper pond and rustic camp site. 1706 Comment
  HSC41818  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3514 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  HSC56400  Epilobium minutum Terry Griswold, Butler 1979-7-11 6984 Humboldt Near Snow Camp Lake, close to the town of Willow Creek 1393 Comment
  HSC97478  Epilobium minutum C. Witte 2007-5-23 87 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  HSC98840  Epilobium minutum Cara Witte 2008-7-11 877 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC20073  Epilobium minutum Harley P. Chandler June, 1901 1307 Humboldt Hupa Indian Reservation North Coast Ranges Comment
  SEINET10632323  Epilobium oreganum Jane P. Nelson, Thomas W. Nelson 1975-7-20 Nelson 2053 Humboldt T2S, RSE, Sec 13; wet boggy serpentine soil under Jeffrey pine forest beside Rd 2508 to Pine Mtn. Comment
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Feb 3 2021
  UC249614 Image available Epilobium septentrionale Joseph P. Tracy 1921-8-21 5942 Humboldt Mouth of South Fork of Trinity River; Northern Coast Ranges; Humboldt Co. 152 Comment
  HSC16604  Epipactis gigantea D. E. Anderson 1967-7-10 4368 Humboldt Mad river canyon, 3 mi. S of Blue Lake Comment
  HSC100382  Equisetum arvense Carl C. Marshall May 1886 199 Humboldt Fields. Comment
  CAS-BOT-BC57163  Equisetum hyemale subsp. affine Duart V. Brown 1947-3-24 3 Humboldt 3 miles south of Willow Creek, Trinity River Comment
  CHSC94942  Equisetum laevigatum K. Lang; J. Lang 2005-3-14 13 Humboldt Trinidad, N. California coast. 51 Comment
  RSA239686  Equisetum laevigatum Larry E. DeBuhr 1973-4-23 990 Humboldt Richardson Grove Redwood State Park. Comment
  SEINET181172 Image available Equisetum telmateia Bassett Maguire, R Maguire; C. B. Maguire 1934-6-8 15055 Humboldt Bolling Grove State Park ; Bolling Grove State Park Comment
  HSC54653  Equisetum telmateia subsp. braunii Overton, Butler 1979-7-25 9861 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC1187363  Equisetum telmateia subsp. braunii P. C. Hutchison 1961-3-3 885 Humboldt 1/2 ,i s Benbow (Hwy. 101, S. Fork Eel River) Comment
  CAS-BOT-BC213622  Eragrostis mexicana subsp. virescens Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UCD64457  Eragrostis pectinacea Collector Unknown 1946-11 Humboldt Orleans. Comment
  CAS-BOT-BC284096  Eragrostis pectinacea var. pectinacea Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC291166  Erechtites glomeratus M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  CAS-BOT-BC291176  Erechtites glomeratus H. E. Parks; S. T. Parks 1937-7-1 24033 Humboldt Spruce Cove, Trinidad 60 Comment
  RSA638987  Erechtites glomeratus R. F. Thorne, Percy C. Everett 1965-8-8 35239 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC32286  Eremogone congesta var. crassula D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5632 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC41178  Ericameria nauseosa var. speciosa Robert M. Specht 1976-8-22 539 Humboldt ca. 3.95 mi. S of Hwy. 299 on Titlow Hill Rd. to Horse Mtn. Comment
  JEPS21500  Ericameria nauseosa var. speciosa Joseph P. Tracy 1929-8-18 8652 Humboldt Northern Coast Ranges, Larrabee Valley 701 Comment
  UC581743  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain South Fork Mountain (near McKay Camp) 1676 Comment
  SEINET200722  Erigeron foliosus Joseph P. Tracy 1913-6-10 4082 Humboldt Along Van Dugen River near Grizzly Gulch. Comment
  CAS-BOT-BC296121  Erigeron foliosus var. confinis Alice Eastwood; John Thomas Howell 1937-6-24 4870 Humboldt Gambi's Comment
  JEPS41520  Erigeron foliosus var. mendocinus Lincoln Constance 1934-5-29 720 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region, Upper Look Prairie 365 Comment
  UC581721  Erigeron foliosus var. mendocinus Joseph P. Tracy 1931-5-17 9433 Humboldt near Willow Creek; Trinity River 152 Comment
  RSA254794  Erigeron glaucus Thomas W. Nelson 1971-11-11 596 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  UC1223140  Erigeron glaucus Joseph P. Tracy 1948-6-10 18038 Humboldt w Trinidad 7 Comment
  HSC98674  Erigeron inornatus var. inornatus Cara Witte 2008-7-10 850 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile from National Forest 1. Under powerlines. 1237 Comment
  UC87824  Erigeron inornatus var. inornatus W. W. Price 1890-6-5 Humboldt Comment
  HSC58174  Erigeron klamathensis G. L. Clifton, Griswold 1979-8-2 12255 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC74424  Erigeron klamathensis Gail Newton 1980-7-24 1766 Humboldt Near Somes Mtn. 1615 Comment
  HSC98524  Erigeron klamathensis Cara Witte 2008-7-30 978 Humboldt National Forest 1. 2 miles north of intersection with Forest Service Road 4N09. 1267 Comment
  SD56767  Erigeron philadelphicus Darley F. Howe 1963-7-8 3621 Humboldt 8.2 miles west of Bridgeville on California Highway 36. 89 Comment
  UC31516  Erigeron philadelphicus var. philadelphicus Hy Melde 1896-2-21 Humboldt Eureka Comment
  UC34159  Erigeron philadelphicus var. philadelphicus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC24402  Eriodictyon californicum J. O. Sawyer 1970-6-24 2224 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  CAS-BOT-BC248808  Eriogonum compositum var. compositum Volney Rattan 1883-6-1 s.n. Humboldt Summit bet. Mad R. & Pilot Cr. Comment
  HSC46971  Eriogonum latifolium J. P. Smith, Thomas W. Nelson 1977-6-30 9209 Humboldt Samoa Peninsula just E of the drag strip. Comment
  POM279950  Eriogonum latifolium Lyman Benson 1929-7-15 1811 Humboldt Clam Beach, Trinidad. Comment
  UC1478648  Eriogonum latifolium Robert F. Thorne 1974-7-29 45074 Humboldt Samoa Dunes Comment
  CAS-BOT-BC259532  Eriogonum luteolum var. luteolum Marcus E. Jones 1931-7-16 28862 Humboldt Junction, East of Arcata Comment
  CAS-BOT-BC259537  Eriogonum luteolum var. luteolum Doris K. Kildale 1926-8-29 2594 Humboldt On Van Duzen River at Swimmer's Delight near Strong's Station Comment
  UC1198101  Eriogonum luteolum var. luteolum Joseph P. Tracy 1919-9-13 5192 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC261493  Eriogonum nudum var. nudum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC261496  Eriogonum nudum var. nudum Doris Kildale 1931-6-6 10864 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  HSC32167  Eriogonum nudum var. nudum J. O. Sawyer 1970-6-24 2243 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  CAS-BOT-BC261489  Eriogonum nudum var. nudum Carl B. Wolf 1927-8-28 1168 Humboldt Along the Blue Lake road, 9 miles from Willow Creek Comment
  JEPS56635  Eriogonum nudum var. nudum Lincoln Constance 1934-5-24 626 Humboldt s slope of Lower Look Prairie South Fork Eel River, Bull Creek Region, Lower Look Prairie 121 Comment
  UC146155  Eriogonum nudum var. nudum Joseph P. Tracy 1908-6 2811 Humboldt opposite Buck Mountain (Valley of Van Duzen River); North Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC38522  Eriogonum nudum var. oblongifolium D. E. Anderson, J. P. Smith 1971-6-18 1076 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  RSA33411  Eriogonum nudum var. oblongifolium Doris K. Kildale 1927-7-1 3621 Humboldt Alton Hill Comment
  CAS-BOT-BC269863  Eriogonum nudum var. pubiflorum Carl D. Duncan 1920-9-21 336 Humboldt Hoopa Comment
  UC672894  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-23 14133 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC43085  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-1 146 Humboldt N Trinity Mtn. 1860 Comment
  HSC55278  Eriogonum umbellatum var. stellatum Overton, Butler 1979-8-2 12689 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74176  Eriogonum umbellatum var. stellatum M. A. Baker 1980-7-23 3149 Humboldt Near Orleans Mtn. 1859 Comment
  HSC58062  Eriophorum crinigerum G. L. Clifton, Griswold 1979-8-1 11939 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1692 Comment
  SEINET10551827  Eriophorum crinigerum Henry N. Bolander 1866-1 Bolander 6475 Humboldt Red Mountain. Comment
  HSC100431  Eriophyllum caespitosum Carl C. Marshall Sep 1887 439 Humboldt S side of Table Bluff. Comment
  HSC79540  Eriophyllum confertiflorum Kenneth Clark 1979-7-1 461 Humboldt Deadman's Gulch 11 Comment
  HSC56464  Eriophyllum lanatum var. achilleoides Griswold, Butler 1979-7-12 7262 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  JEPS34585  Eriophyllum lanatum var. achilleoides Chestnut and Drew 1888-7-12 Humboldt Jarnigans Comment
  CAS-BOT-BC301180  Eriophyllum lanatum var. arachnoideum Carl B. Wolf 1927-8-29 1193 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge--Mt. Glen Comment
  POM160263  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1926-6-18 7607 Humboldt Humboldt Hill 152 Comment
  UC204867  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1918-7-21 5082 Humboldt Humboldt Hill Northern Coast Ranges of California, Humboldt Hill 152 Comment
  UC1223132  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1987-7-4 17784 Humboldt ridge top 1 mi w of Mud Springs (in serpentine formation); Trinity Summit 1158 Comment
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Jun 28 2015
  CAS-BOT-BC301688  Eriophyllum lanatum var. lanceolatum V. Rattan 1875-1-1 s.n. Humboldt Unspecified Comment
  HSC5585  Eriophyllum lanatum var. lanceolatum Lincoln Constance, R. C. Rollins 1942-5-12 2890 Humboldt Klamath River, 12 mi. N of Weitchpec 122 Comment
  UC53949  Eriophyllum lanatum var. lanceolatum Harley P. Chandler Jun 1901 1403 Humboldt Klamath River North Coast Ranges 243 Comment
  BLMAR601  Eriophyllum staechadifolium Jennifer Wheeler 2010-11-3 601 Humboldt King range, North bluff of allotment above the campground 243 Comment
  UC1199177  Erysimum capitatum Joseph P. Tracy 1927-6-12 8149 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  JEPS53584  Erysimum menziesii Joseph P. Tracy 1904-4-24 2031 Humboldt sand dunes of ocean beach Northern Coast Region, Humboldt Bay Comment
  HSC58127  Erysimum perenne Gilbert Muth 1979-8-1 12114 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1197639  Erythronium californicum Ethel Tracy 1906-4-15 Humboldt Harris Northern Coast Ranges 762 Comment
  HSC15491  Erythronium californicum Paul Shields May 1955 Humboldt 12 mi. W of Willow Creek Comment
  SEINET10528799  Erythronium californicum Frank W. Gould 1939-5-30 Gould 826 A Humboldt Near top of Horse Mountain, in Pinus monticola-P. jeffreyi-Libo-cedrus forest; 3500 feet. 1065 Comment
  CAS-BOT-BC133332  Erythronium revolutum Harley P. Chandler 1901-6-1 1279 Humboldt Hupa Indian Reservation 1066 Comment
  HSC15502  Erythronium revolutum Paul Shields May 1955 Humboldt Kneeland Comment
  HSC104325  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 23 Humboldt Kneeland 854 Comment
  HSC104346  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 5 Humboldt Kneeland 854 Comment
  CAS-BOT-BC403033  Eschscholzia californica L. R. Abrams 1916-7-11 6058 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  CAS-BOT-BC403040  Eschscholzia californica Carl W. Simpson 1941-5-8 19 Humboldt Garberville Comment
  HSC26879  Eschscholzia californica Clifton Raymond Chesbrough 1973-6-19 86 Humboldt 1/2 mi. S of Trinidad along the coast Comment
  UC184948  Eschscholzia californica Joseph P. Tracy 1912-7-21 3765 Humboldt Alton Northern Coast Region 30 Comment
  JEPS590  Eschscholzia californica Lincoln Constance 1934-5-23 615 Humboldt Look Prairie South Fork Eel River, Bull Creek region (upper end, sw slope) 365 Comment
  HSC69578  Eucalyptus globulus R. Kalal 1980-6-1 7 Humboldt City of Arcata, along F street between 12th and 13th streets. 37 Comment
  CAS-BOT-BC310453  Eucephalus ledophyllus var. covillei Doris K. Kildale 1925-8-17 1214 Humboldt (Near to) Trinity Summit 1917 Comment
  UC1199298  Eucephalus tomentellus Joseph P. Tracy 1930-7-19 9083 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  JEPS20487  Euchiton gymnocephalus Joseph P. Tracy 1936-3-22 14784 Humboldt 4 mi se Korbel (near Angels Ranch); North Coast Ranges 304 Comment
  CAS-BOT-BC310491  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt Fickle Hill. (6 mi. S.E. of Arcata) 609 Comment
  CAS-BOT-BC310495  Euchiton sphaericus John Thomas Howell 1936-8-29 12888 Humboldt Eel River 16 miles n. of Garberville Comment
  POM292452  Euchiton sphaericus Lyman Benson 1929-7-16 1831 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  HSC102197  Euonymus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1111 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  UC1199006  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1920-6-26 5339 Humboldt near Sequoia Park Eureka; Northern Coast Ranges 0 Comment
  HSC8002  Euphorbia crenulata Lincoln Constance 1934-5-24 646 Humboldt S Fork Eel River 122 Comment
  CDA28953  Euphorbia virgata T. Chapple 2009-6-1 s.n. Humboldt Vicinity of Orleans, found on Klamath River access road. 0 Comment
  HSC76339  Eurybia radulina Teresa Prendusi 1981-7-21 277 Humboldt Near Whiteys Peak 1646 Comment
  CAS-BOT-BC310680  Euthamia occidentalis Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC31183  Festuca californica D. E. Anderson 1972-6-20 5752 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC74274  Festuca californica M. A. Baker 1980-5-23 1382 Humboldt Near Buck Mtn. 1524 Comment
  UC1103702  Festuca californica Joseph P. Tracy 1923-6-3 6250 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC526871  Festuca californica Joseph P. Tracy 1933-6-13 12603 Humboldt near summit on road from Hoopa w to Bair's; Hoopa Mountain 1066 Comment
  HSC9852  Festuca californica D. C. Juve 1964-5-16 36 Humboldt Campbell Cr. Ranger Station. Hwy. 96. Hillside above Trinity River Comment
  UC187110  Festuca elmeri Joseph P. Tracy 1908-6 2741 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC278423  Festuca idahoensis Harley P. Chandler 1901-6-1 1366 Humboldt North Coast Ranges. Hupa Indian Reservation 304 Comment
  HSC102226  Festuca idahoensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1146 Humboldt Andy's Camp 1564 Comment
  HSC75355  Festuca occidentalis J. O. Sawyer, M. A. Ericksen 1980-7-18 3644 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  HSC26371  Festuca rubra T. O. Osborne 1970-9-16 62 Humboldt Trinidad Bay, Prisoner Rock Comment
  RSA10070  Festuca rubra Joseph P. Tracy 1927-6-26 8217 Humboldt Stone Lagoon. Comment
  POM126171  Festuca subulata Joseph P. Tracy 1903-5-23 1899 Humboldt Alder Point, on Eel River. 244 Comment
  CAS-BOT-BC453524  Fragaria chiloensis Bolemanson 1908-5-15 s.n. Humboldt Samoa Comment
  CAS-BOT-BC453517  Fragaria chiloensis John Thomas Howell 1954-4-25 29155 Humboldt Dune Hills, Little River Comment
  HSC99023  Fragaria vesca Cara Witte 2008-7-14 899 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  CAS-BOT-BC60000  Frangula purshiana C. B. Wolf 1931-8-30 2373 Humboldt E. side of Eureka on P. St., one block n. of Henderson St. 30 Comment
  HSC18415  Frangula purshiana G. B. Kendall 1965-5-8 7 Humboldt 1.0 mi S of Trinidad on Hwy. 101 Comment
  UC906695  Fraxinus latifolia Joseph P. Tracy 1941-3-26 16814 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  CAS-BOT-BC136026  Fritillaria affinis R. C. Barneby 1954-5-19 11571 Humboldt Forested ridge, 13 miles w. of Fort Seward 640 Comment
  CAS-BOT-BC136032  Fritillaria affinis John Thomas Howell 1954-4-25 29154 Humboldt Dune hills, Little River Comment
  UC1225860  Fritillaria affinis Joseph P. Tracy 1947-4-27 17674 Humboldt Table Bluff, on Tompkins Hill Road Table Bluff; , Tompkins Hill Road 152 Comment
  SEINET200745  Fritillaria lanceolata Joseph P. Tracy 1940-5-17 16549 Humboldt McClellan Mountain. 762 Comment
  HSC100211  Fuchsia magellanica J. P. Smith 2009-7-28 12641 Humboldt Arcata; Along St. Louis Road. 16 Comment
  SEINET4208042  Fumaria capreolata Richard R. Halse 2013-3-28 8767 Humboldt Eureka. By a Texaco station near 3543 Broadway St. (U.S. Hwy. 101); 0 6 Comment
  JEPS6480  Galium ambiguum subsp. siskiyouense Joseph P. Tracy 1925-5-30 7026 Humboldt Laribee Valley Northern Coast Ranges 731 Comment
  HSC70928  Galium aparine R. York 1980-5-18 579 Humboldt Near Black Mtn 792 Comment
  HSC81605  Galium aparine Thomas W. Nelson, Jane P. Nelson 1980-5-25 5261 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  UC602510  Galium bolanderi Joseph P. Tracy 1935-7-29 14339 Humboldt exposed places near Ranger Station; Trinity Summit 1828 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
  HSC100642  Galium californicum Carl C. Marshall Jul 1887 400 Humboldt Spruce Grove. Comment
  JEPS52856  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3862 Humboldt 4.2 mi n Redway (along US 101, w-facing slope above river); Eel River 91 Comment
  JEPS52841  Galium muricatum Lauramay T. Dempster 1963-9-3 3920 Humboldt Hwy 299 just w Boise Creek (transmission line clearing) 304 Comment
  RSA53645  Galium parisiense Roxana S. Ferris 1955-7-11 12972 Humboldt Summit of U.S. Hwy 299 btwn. Willow Creek and Blue Lake. Comment
  HSC70963  Galium porrigens Gail Newton 1980-7-15 1585 Humboldt Near Sims Mtn. 1311 Comment
  POM60798  Galium trifidum Joseph P. Tracy 1906-8-18 2542 Humboldt Eureka. 0 Comment
  UC1196080  Galium trifidum Joseph P. Tracy 1903-8-9 1944 Humboldt Eureka Northern Coast Region 0 Comment
  HSC39162  Galium triflorum D. E. Anderson, J. P. Smith 1971-6-28 - 1241 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC58322  Galium triflorum Overton, Butler 1979-8-2 12619 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76233  Galium triflorum Teresa Prendusi 1981-7-9 166 Humboldt Near Cedar Camp. 1268 Comment
  UC1586851  Galium triflorum Juha Pykala 1987-6-20 1857 Humboldt n house of Prof. D. H. Norris; Kneeland, Greenwood Heights 350 Comment
  JEPS6536  Galium triflorum W. L. Jepson 1902-6 1957 Humboldt Redwood Creek Comment
  CAS-BOT-BC188532  Garrya elliptica Doris K. Kildale 1926-9-12 2668 Humboldt Klamath River near Requa on trail between ferry and bridge Comment
  CAS-BOT-BC188537  Garrya elliptica Doris K. Kildale 1926-9-12 2667 Humboldt Klamath River near Requa. On trail between Ferry and bridge Comment
  HSC89538  Garrya elliptica M. Roantree 1985-4-25 1 Humboldt E side of Trinidad Head. Comment
  JEPS66720  Garrya elliptica Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  CAS-BOT-BC182168  Garrya fremontii Joseph P. Tracy 1932-3-6 9773 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC43109  Garrya fremontii Brad Klipfel 1975-5-30 650 Humboldt Horse Mtn. Comment
  UCSB72517  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  UCSB72519  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  HSC9992  Gastridium phleoides True Hoyle 1967-7-9 27967 Humboldt 2 mi. NW from the junction of Fickle Hill and Butler Valley Rds. 457 Comment
  SEINET11677850  Gastridium phleoides H. P. Chandler 1901-1 1506 Humboldt Klamath River, North Coast Ranges 427 Comment
  UC34067  Gastridium ventricosum J. P. Tracy 1900-9-9 951 Humboldt bar of Yager Creek near Hydesville; bar of Yager Creek 60 Comment
  HSC53968  Gaultheria ovatifolia Griswold, Butler 1979-7-11 7025 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  CAS-BOT-BC58906  Gaultheria shallon Carl B. Wolf 1930-10-30 1043 Humboldt Old Coast Road, 4 miles south of Thorn 304 Comment
  CAS-BOT-BC58907  Gaultheria shallon Carl B. Wolf 1931-8-29 1242 Humboldt Near summit of Orick Hill on road to Weithchpec. 304 Comment
  CAS-BOT-BC58908  Gaultheria shallon Carl B. Wolf 1927-8-22 804 Humboldt 1 mile south of Orick Comment
  HSC45586  Gaultheria shallon Diane L. Reed 1978-5-27 140 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC69579  Gaultheria shallon R. Kalal 1980-6-1 6 Humboldt S side Essex Pond 18 Comment
  LA41415  Gaultheria shallon C. B. Wolf; 1930-10-30 1787 Humboldt old Coast Road, 4 mi. S of Thorns 304 Comment
  RSA1367  Gaultheria shallon E. R. Johnson 1929-08 612 Humboldt Eel River. 91 Comment
  SBBG59965  Gaultheria shallon R. Hartwell 1938-8-3 105 Humboldt Bull Crk, Redwood Flat, Eel River Comment
  UC562735  Gaultheria shallon Joseph P. Tracy 1936-6-28 15017 Humboldt Bald Mountain at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  UC198620  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1917-9-2 4850 Humboldt Grouse Mt. Northern Coast Ranges (slopes high up) 1524 Comment
  CAS-BOT-BC208037  Genista monspessulana Elmer I. Applegate 1931-3-28 6627 Humboldt Redwood Highway, near Dyrville Comment
  UCD105734  Genista monspessulana R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  RSA46856  Gentiana oregana Doris K. Kildale 1926-7-11 2370 Humboldt Bear River, ridge near Mt. Glen. Comment
  RSA46825  Gentiana plurisetosa Doris K. Kildale 1925-8-17 s.n. Humboldt Trinity Summit 1829 Comment
  JEPS61425  Geranium dissectum Mrs. M. H. Manning Jun 1902 Humboldt Hupa Comment
  HSC8650  Geranium dissectum Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  UC1541358  Geranium molle Harold E. Parks May 1934 4323 Humboldt Spruce Cove Trinidad Comment
  JEPS61438  Geranium oreganum Milo S. Baker 1923-7-20 30 Humboldt Head of Yager Creek Comment
  UC154213  Geum macrophyllum var. macrophyllum J. P. Tracy 1901-6-23 1171 Humboldt immediate vicinity of Eureka 0 Comment
  RSA84895  Gilia capitata H. M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  SEINET12278778  Gilia capitata L. K. Henry 1971-1 s.n. Humboldt along Rt 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  HSC95157  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1990 Humboldt E side headwaters of Brushy Creek 800 Comment
  UC907968  Gilia capitata subsp. pacifica Joseph P. Tracy 1936-6-9 14879 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  HSC16983  Gilia millefoliata J. W. Bosworth 1965-5-14 49 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  UC906684  Gilia tricolor subsp. tricolor Joseph P. Tracy 1942-5-16 17340 Humboldt Garberville 152 Comment
  SEINET10873073  Githopsis specularioides Tracy 1908-6-9 TRACY 2655 Humboldt Kneeland Prairie 762 Comment
  UC1191701  Glaux maritima Malcolm A. Nobs, S. Galen Smith 1949-8-3 1201 Humboldt 2 mi n of Eureka (bordering Humboldt Bay); Humboldt Bay Comment
  CAS-BOT-BC218426  Glehnia littoralis subsp. leiocarpa J. Clausen 1935-6-16 3386 Humboldt Mouth of Little River Comment
  CAS-BOT-BC218474  Glehnia littoralis subsp. leiocarpa Carl B. Wolf 1937-6-18 8906 Humboldt Centerville Beach 3 Comment
  HSC90679  Glyceria declinata Gail Newton 1982-6-10 3591 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC74433  Glyceria striata Gail Newton 1980-8-10 2063 Humboldt Near Blake Mtn. 1707 Comment
  POM358894  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-08 24080 Humboldt Spruce Cove, Trinidad. Comment
  HSC5711  Gnaphalium palustre Jerry Parker 1968-9-24 74 Humboldt Mckinleyville beach Comment
  SD88350  Gnaphalium purpureum Darley F. Howe 1972-6-30 Humboldt Trinidad Comment
  POM199562  Gnaphalium sphaericum Joseph P. Tracy 1915-9-12 4677 Humboldt Humboldt County: mouth of Laribee Creek. 61 Comment
  HSC45235  Goodyera oblongifolia Thomas W. Nelson, Jane P. Nelson 1977-7-1 3563 Humboldt N side of ridge between Bear Creek & Blanket Creek 1524 Comment
  HSC90398  Grindelia hirsutula Jean Hanson 1980-8-28 115 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. From ca. 20 to ca. 50 ft. from high tide line. Comment
  JEPS35820  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
  UC1118562  Grindelia hirsutula H. L. Person 1932-8-6 Humboldt slough between Arcata and Eureka; Eureka Quad. Comment
  HSC74384  Hackelia bella M. A. Baker 1980-6-28 2473 Humboldt Near Mad River Buttes 1445 Comment
  RSA259547  Hackelia bella D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-13 s.n. 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
  UC1222252  Hackelia californica Joseph P. Tracy 1948-8-15 18154 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity nSummit 1524 Comment
  HSC57431  Hackelia micrantha G. L. Clifton, Griswold 1979-7-26 10209 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  JEPS67937  Hackelia setosa Joseph P. Tracy 1937-7-2 15397 Humboldt on Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  SEINET11848907  Helenium bigelovii J. P. Tracy, Parks, H. E. 1950-1 11686 Humboldt Park's place, 2 mi N of Trinidad Comment
  UC582671  Helenium bigelovii Joseph P. Tracy 1937-8-12 15627 Humboldt Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  CAS-BOT-BC306870  Helenium bolanderi Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC309416  Helenium puberulum L. R. Abrams 1922-6-25 8232 Humboldt 2 mi south of Fortuna Comment
  POM126139  Hemizonia congesta Joseph P. Tracy 1923-6-20 6338 Humboldt Near Garberville (4 miles N of it.) 122 Comment
  CAS-BOT-BC306114  Hemizonia congesta subsp. clevelandii L. R. Abrams 1916-7-11 5975 Humboldt Dobbin [Dobbyn] Creek Comment
  UC1199372  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1934-7-9 13343 Humboldt Dobbyn Creek 152 Comment
  POM360349  Hemizonia congesta subsp. tracyi S. K. Harris 1936-6-20 699 Humboldt Above Van Duzen River about 1 mile west of Bridgeville Comment
  UC1199366  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1940-10-17 16768 Humboldt Camp Grant, Eel River 45 Comment
  HSC90261  Heracleum maximum Jean Hanson 1980-5-24 73 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka. W end of island Comment
  UC1212422  Hesperolinon micranthum Joseph P. Tracy 1925-7-12 7202 Humboldt hillsides w of Trinity River Valley (near the South Fork); Northern Coast Ranges 304 Comment
  UC1222144  Hesperolinon micranthum Joseph P. Tracy 1950-7-6 18994 Humboldt 3 mi s Burr Valley (on the Albee Road); Buck Mountain 1158 Comment
  RSA249393  Heterocodon rariflorum D. E. Anderson, Thomas W. Nelson, S. Dowty 1974-6-17 5709 Humboldt McKeown Ranch N of Dinsmore. Comment
  CDA31699  Heterotheca oregona M. K. Beyers, I. Shepardson 2009-9-13 244 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  CDA39222  Heterotheca oregona D. Juliano 2013-8-1 PDR# 120 P06003641 Humboldt Vicinity of Carlotta, along Yager Creek, near Hwy. 36 & Central Ave. Comment
  HSC74559  Heuchera micrantha M. A. Baker 1980-7-11 2798 Humboldt Near Red Mtn. 1341 Comment
  UC535765  Heuchera micrantha var. diversifolia Eleanor Armstrong 1934-5-17 Humboldt Richardson Grove Comment
  CAS-BOT-BC424195  Heuchera micrantha var. hartwegii Alice Eastwood 1907-4-21 s.n. Humboldt Trinidad, Light-house Point Comment
  SEINET207134  Heuchera parvifolia J. P. Tracy 1951-6-14 19416 Humboldt East side of Snow Camp Meadows Comment
Read comments
Jul 16 2018
  CAS-BOT-BC312388  Hieracium albiflorum Doris K. Kildale 1927-7-17 3752 Humboldt Bug Creek 792 Comment
  UC1199467  Hieracium albiflorum Joseph P. Tracy 1933-7-25 12831 Humboldt Horse Mountain 1432 Comment
  UCD133133  Hieracium albiflorum Linda M. Barker 1976-6-14 1591 Humboldt 3 miles west of Arcata. Comment
  RSA168836  Hieracium bolanderi Joseph P. Tracy 1947-7-9 17849 Humboldt Horse Mountain 1432 Comment
  HSC57935  Hieracium greenei G. L. Clifton, Griswold 1979-7-31 11587 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  HSC74477  Hieracium greenei Gail Newton 1980-7-24 1765 Humboldt Near Somes Mtn. 1615 Comment
  UC1199469  Hieracium nudicaule Joseph P. Tracy 1929-7-4 8629 Humboldt French Camp Ridge 1066 Comment
  UC582422  Hieracium nudicaule Joseph P. Tracy Jul 16 1930-Jul 19 1930 9041 Humboldt near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC165198  Hieracium scouleri Joseph P. Tracy 1908-7-1 2891 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  HSC38837  Holcus lanatus R. Sutherland 1976-8-13 3 .13876 Humboldt Just above Whittemore Grove. 168 Comment
  HSC58657  Holcus lanatus G. L. Clifton 1979-7-31 11851 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  JEPS75424  Holcus lanatus W. L. Jepson 1932-8-1 16467 Humboldt Bull Creek 121 Comment
  RSA121226  Holcus lanatus H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  RSA22954  Holcus lanatus A. C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  RSA53833  Holcus lanatus Henry M. Pollard 1946-8-10 s.n. Humboldt South of Klamath River and east of Perch Creek, Orleans region. Comment
  UCD84961  Holcus lanatus Henry M. Pollard 1945-8-24 7892 Humboldt Klamath River Canyon. Between Orleans and Camp Creek. Comment
  CAS-BOT-BC149903  Holodiscus discolor L. R. Abrams 1918-6-16 7147 Humboldt Willow Creek Comment
  HSC70991  Holodiscus discolor Gail Newton 1980-7-15 1576 Humboldt Near Sims Mtn. 1311 Comment
  HSC72686  Holodiscus discolor J. P. Smith 1977-7-3 9260 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  HSC74742  Holodiscus discolor Gail Newton 1981-7-24 2295 Humboldt Near Chaparral Mtn. 1512 Comment
  HSC10162  Hordeum brachyantherum C. E. Fellows 1965-5-18 85 Humboldt 50 yds. E of intersection of Bayside Cutoff and Hwy. 101 Comment
  HSC74183  Hordeum brachyantherum M. A. Baker 1980-7-22 3108 Humboldt Near Grogan Hole. 1676 Comment
  UC1103486  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1943-7-18 17439 Humboldt Big Lagoon 6 Comment
  HSC10176  Hordeum marinum subsp. gussoneanum J. A. Waller 1965-4-19 15 Humboldt Kneeland area. Comment
  UCD85879  Hordeum marinum subsp. gussoneanum A. H. Murphy 1951-5-21 s.n. Humboldt Tooby and Prior Ranch, Blocksburg. Experimental grazing pasture, 2 miles S of Blocksburg. Comment
  BLMAR21  Hordeum murinum subsp. leporinum Brad Barr June, 1982 21 Humboldt King range, Spanish flat, smith cabin Comment
  HSC10232  Hordeum vulgare E. W. Styskel 1964-4-23 68 Humboldt 1/4 mi. S of Fields Landing along Hwy. 101. Comment
  UCSB2822  Horkelia tridentata Constance, Lincoln; Beetle, Alan; Tracy, Joseph 1940-5-17 Humboldt Larrabee Valley, near Eureka 762 Comment
  CAS-BOT-BC537898  Horkelia tridentata var. flavescens Alice Eastwood; John Thomas Howell 1937-6-23 4806 Humboldt Little Van Duzen River Comment
  CAS-BOT-BC206123  Hosackia crassifolia Clarence R. Quick 1959-7-24 59 -37 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  SBBG3399  Hosackia crassifolia var. crassifolia H. and M. Dearing 1939-5-24 3418 Humboldt pass, Dyerville-Mattole Rd Comment
  SBBG3396  Hosackia crassifolia var. crassifolia H. and M. Dearing 1933-5-21 895 Humboldt 4 mi S of Orick Comment
  NY15458  Hosackia denticulata V. K. Chesnut 1888-7-10 s.n. Humboldt Along Mad River, near Jarnigan's Comment
  HSC21514  Hydrocotyle ranunculoides Rollin Sparrowe 1961-12-8 1 Humboldt In slough S of road Comment
  HSC57677  Hydrophyllum occidentale G. L. Clifton, Griswold 1979-7-25 10877 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC99506  Hypericum anagalloides K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 166 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
  UC902140  Hypericum anagalloides Joseph P. Tracy 1947-6-28 17750 Humboldt Larrabee Valley 731 Comment
  UC1198399  Hypericum perforatum Joseph P. Tracy 1934-7-2 13290 Humboldt Trinidad 3 Comment
  HSC67970  Hypericum perforatum J. P. Smith, Steve Selva 1970-6-14 3831 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  UCD110368  Hypericum perforatum subsp. perforatum David Board 1920-9-1 s.n. Humboldt Lone Star Ranch, Iaqua. Comment
  OBI5958  Iliamna latibracteata Carl B. Wolf 1931-8-28 2367 Humboldt Redwood hwy, 3 mi N of Orick, (Davidson's Ranch on Prairie Crk) 61 Comment
  UC630469 Image available Iliamna latibracteata H. E. Parks, S. T. Parks June, 1935 5593 Humboldt East side of Prairie Creek, North of Orick. Comment
Read comments
Feb 27 2012
  UC1103805  Ionopsidium acaule Joseph P. Tracy 1933-3-12 10919 Humboldt Ferndale, St. Mary's Cemetery Ferndale; North Coast Ranges, , St. Mary's Cemetery 15 Comment
  HSC102642  Ipomopsis aggregata subsp. aggregata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 964 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC47580  Iris douglasiana Sheila Logan 1978-4-10 176 Humboldt Redwood Park behind HSU campus Comment
  UC1103024  Iris douglasiana Joseph P. Tracy 1931-6-7 9574 Humboldt Eureka 30 Comment
  HSC32383  Iris douglasiana Linda M. Barker 1974-5-11 185 Humboldt Redwood National Park, W of Bald Hills Rd., NW of Gans Prairie 366 Comment
  UC175302  Iris douglasiana Joseph P. Tracy 1912-4-21 3571 B Humboldt Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  UC1134714  Iris macrosiphon R. Stahelin 1933-6-24 Humboldt Casper Eureka Quad. (e of Camp 19) 91 Comment
  CDA33248  Iris purdyi Gordon Leppig 1998-6-1 867 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  RSA135894  Iris purdyi Lee W. Lenz 1953-5-17 18320 Humboldt 4.5 miles west of Willow Creek, Highway 299 Comment
  HSC43791  Iris tenax subsp. klamathensis Greg Leisten 1976-5-17 Humboldt 2 mi. off Ishi Pishi Rd. on Maple Springs Rd., Reece Homestead Area Comment
  UC14924  Iris tenuissima Harley P. Chandler Jun 1901 1529 Humboldt Klamath River; North Coast Ranges Comment
  UC14930  Iris tenuissima Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  HSC90882  Isolepis cernua Gail Newton 1982-6-10 3596 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC340159  Jaumea carnosa Marcus E. Jones 1931-7-16 29118 Humboldt Arcata Comment
  HSC5881  Jaumea carnosa David K. Smith 1968-11-9 55 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  POM187933  Jaumea carnosa Marcus E. Jones 1931-7-16 29118 Humboldt Arcata. Comment
  UCR48590  Jaumea carnosa R. D. Goeden, Don W. Ricker 1987-9-2 870902- 18 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  CAS-BOT-BC340154  Jaumea carnosa C. C. Harris; S. K. Harris 1939-8-26 s.n. Humboldt South shore of Humboldt Bay Comment
  CAS-BOT-BC109922  Juncus Doris Kildale Gillespie 1931-6-7 10654 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  UC184199  Juncus ambiguus Joseph P. Tracy 1912-6-16 3699 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region, , Hookton 0 Comment
  RSA216153  Juncus articulatus G. H. True 1965-9-28 2654 Humboldt Klamath River at Boise Creek, 2 1/2 miles southwest of orleans. 137 Comment
  RSA246799  Juncus balticus subsp. ater Robert F. Thorne, Percy C. Everett 1965-8-9 35290 Humboldt Big Lagoon. 3 Comment
  HSC85848  Juncus balticus subsp. ater L. P. Janeway 1983-9-24 699 Humboldt S side of Big Lagoon at county camp ground, 10-30 ft. from water line 3 Comment
  HSC57016  Juncus bolanderi Overton, Butler 1979-7-24 9623 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC67959  Juncus bolanderi Steve Selva, J. P. Smith 1970-6-14 3524 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC249817  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon 6 Comment
  HSC23673  Juncus bolanderi Tim Baroni 1971-6-25 56 Humboldt Comment
  RSA54121  Juncus bolanderi Henry M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  RSA246797  Juncus breweri Robert F. Thorne, Percy C. Everett 1965-8-5 35161 Humboldt Samoa Dunes. 3 Comment
  BLMAR417  Juncus breweri Jennifer Wheeler 2007-8-29 417 Humboldt South Spit, growing on east side near bay 9 Comment
  UC1103048  Juncus covillei var. obtusatus Joseph P. Tracy 1918-7-5 5000 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC184085  Juncus effusus subsp. pacificus Joseph P. Tracy 1906-8-18 2548 Humboldt Eureka Northern Coast Region 0 Comment
  SDSU11740  Juncus effusus var. brunneus D. F. Howe 1961-8-2 3119 Humboldt 8.5 miles east of Orick on Bald Mt. road. 610 Comment
  HSC69862  Juncus ensifolius Thomas W. Nelson, Ken Hindley 1978-5-28 4085 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  CHSC110174  Juncus falcatus subsp. sitchensis Peter F. Zika 2007-6-30 23319 Humboldt SW corner of Big Lagoon, (NCo, North Coast). 2 Comment
  RSA246769  Juncus falcatus subsp. sitchensis Robert F. Thorne, Percy C. Everett 1965-8-7 35175 Humboldt Big Lagoon. 2 Comment
  UC1103036  Juncus falcatus subsp. sitchensis Joseph P. Tracy 1906-5-13 2458 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC82399  Juncus howellii Thomas W. Nelson 1979-7-11 5015 Humboldt N Trinity Mtn. and ridge to E 1829 Comment
  UC184198  Juncus kelloggii Joseph P. Tracy 1914-5-14 4431 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC183768  Juncus occidentalis Joseph P. Tracy 1911-7-7 3369 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  POM292636  Juncus patens Lyman Benson 1929-7-14 1742 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  SDSU11823  Juncus phaeocephalus D. F. Howe 1961-8-1 3111 Humboldt 9 miles noth of Arcata on #101 Comment
  UC194808  Juncus xiphioides Joseph P. Tracy 1915-9-12 4671 Humboldt Eel River, at mouth of Laribee Creek Northern Coast Ranges, Laribee Creek 60 Comment
  UC562742  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1935-7-26 14261 Humboldt Trinity Summit, at Water Dog Lakes Water Dog Lakes; Trinity Summit, Water Dog Lakes 1828 Comment
  HSC50858  Keckiella corymbosa Walter Overton, Marvin Butler 1979-7-25 9882 Humboldt Near Sims Mtn., close to the town of Willow Creek 1296 Comment
  JEPS10903  Keckiella lemmonii Lincoln Constance 1934-6-27 937 Humboldt Dyerville South Fork Eel River, Bull Creek Region (near Eel River junction with South Fork, on s side of Eel River, 0.5 mi nw of South Fork P.O. and railroad station, end of railroad bridge) Comment
  UC213502  Keckiella lemmonii Joseph P. Tracy 1920-8-15 5352 Humboldt mouth of Slate Creek; Northern Coast Ranges, Klamath River 152 Comment
  HSC55592  Kelloggia galioides G. L. Clifton, Griswold 1979-7-26 9366 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  RSA167285  Koeleria macrantha Joseph P. Tracy 1951-6-24 19541 Humboldt Kneeland Prairie; rockpile and Ashfield Butte 762 Comment
  SEINET200339 Image available Koeleria macrantha J. P. Tracy 1908-7-5 2778 Humboldt NW slope of Buck Mt 914 Comment
  UC526699  Koeleria macrantha Joseph P. Tracy 1925-7-5 7163 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC154280  Kopsiopsis strobilacea Mrs. M. H. Manning 1901-1 Humboldt Hupa Valley Comment
  UC1199153  Lagophylla ramosissima Joseph P. Tracy 1930-10-12 9217 Humboldt Alton to Fortuna; Eel River 15 Comment
  UC1199131  Lasthenia californica subsp. californica Joseph P. Tracy 1922-4-30 6028 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC46016  Lathyrus latifolius Catherine Chin 1978-8-5 101 Humboldt Arcata, side road on Spring St., between 16th and 17th Sts. Comment
  HSC71352  Lathyrus latifolius J. P. Smith, J. O. Sawyer 1976-5-2 8622 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  SFV18497  Lathyrus littoralis E. Cohen Apr 2002 22 Humboldt Comment
  HSC49176  Lathyrus nevadensis var. nevadensis J. O. Sawyer 1977-4-24 2849 Humboldt 2 mi. E of State Route 96 on road to Fish Lake (13N01) Comment
  UC15357  Lathyrus torreyi H. N. Bolander 1867-1 6506 Humboldt Shelter Cove Comment
  UC709410  Lathyrus torreyi Joseph P. Tracy 1939-7-9 16338 Humboldt Snow Camp 1402 Comment
  UC1199071  Lathyrus vestitus Joseph P. Tracy 1901-6-2 1120 Humboldt immediate vicinity Eureka 0 Comment
  RSA20842  Lathyrus vestitus subsp. bolanderi Carl B. Wolf 1937-6-18 8882 Humboldt Table Bluff - between Humboldt Bay and Eel River. 30 Comment
  HSC33755  Layia carnosa A. Montalvo 1975-5-24 272 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  SEINET11811297  Layia gaillardioides J. P. Tracy 1950-1 18760 Humboldt W slope Domingo Hill leading from coast toward Petrolia Comment
  UC1409177  Ledum glandulosum Robert F. Thorne and P. Everett 1965-8-9 35295 Humboldt Big Lagoon 3 Comment
  UC1223216  Leontodon saxatilis Joseph P. Tracy 1948-7-11 18072 Humboldt at Lack Pond Comment
  UCSB30609  Leontodon saxatilis Edwards, David 1974-8-12 Humboldt North side of 7th St., just W. of its overpass of U.S. 101, Arcata 18 Comment
  UC162613  Lepidium virginicum Harley P. Chandler Jun 1901 1461 Humboldt Klamath River North Coast Ranges 304 Comment
  UC552286  Lepidium virginicum Joseph P. Tracy 1933-8-22 12992 Humboldt Mouth of Eel River North Coast Ranges 3 Comment
  UC1005671  Leptodactylon pungens Frank W. Gould 1939-5-30 823 Humboldt about 25 mi due e Eureka (top of Horse Mountain); top of Horse Mountain 1200 Comment
  CHSC42328  Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg. Comment
  HSC37507  Leptosiphon androsaceus J. D. Ackerman, A. M. Montalvo 1975-6-22 486 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  SEINET7967470 Image available Leptosiphon bicolor Gail Newton 1980-6-28 746 Humboldt Near Mad River Butte 369 Comment
  BLMAR78  Leptosiphon bicolor Jennifer Anthony-Wheeler 1994-6-2 78 Humboldt IAQUA, growing beside logging rd, dry, open grassland 780 Comment
  UC34189  Lessingia nemaclada Harley P. Chandler June, 1901 1503 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  JEPS20619  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Willow Creek Trinity River Valley 152 Comment
  BLMAR147  Leucanthemum vulgare Donald Hazlett 1994-6-7 147 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  SEINET4691296 Image available Leucanthemum vulgare Joseph P. Tracy 1918-1 5080 Humboldt Northern Coast Range; Around Humboldt Bay; Humboldt Hill 152 Comment
  HSC3107  Leucojum aestivum D. B. Mitchell 1965-3-5 - 3 Humboldt 0.5 mi. N of US Coast Guard Station on Samoa Rd. Comment
  HSC48392  Lewisia leeana Brad Klipfel 1973-6-10 152 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC48837  Lewisia nevadensis Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 28 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC73865  Lewisia nevadensis M. A. Baker 1980-6-28 2500 Humboldt Near Mad River Buttes 1445 Comment
  HSC99100  Lewisia nevadensis C. Witte 2007-5-21 52 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  HSC97936  Lewisia triphylla Cara Witte 2007-5-31 145 Humboldt Off National Forest 1. Near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of road. 1510 Comment
  UCD64628  Leymus mollis Linda M. Barker 1976-6-1 1563 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET10779391  Ligusticum californicum Joseph P. Tracy 1937-8-12 Tracy 15633 Humboldt Snow Camp 1402 Comment
  HSC36102  Lilaeopsis occidentalis David Sohrakoff 1972-12-11 3 Humboldt Northern most Clam Beach Pond Comment
  HSC76432  Lilium bolanderi Teresa Prendusi 1981-7-9 233 Humboldt Near Cedar Camp 1256 Comment
  CAS-BOT-BC508389  Lilium columbianum V. Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  CAS-BOT-BC508396  Lilium columbianum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Divide west of Willow Creek Comment
  CAS-BOT-BC508403  Lilium columbianum A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt A few miles north of Arcata Comment
  CAS-BOT-BC508406  Lilium columbianum A. M. Vollmer; L. Beane 1953-7-1 121 Humboldt Unspecified Comment
  HSC45837  Lilium columbianum Clifton Raymond Chesbrough 1971-7-22 75 Humboldt 1.0 mi. S of Eureka golf course Comment
  RSA65318  Lilium columbianum Albert M. Vollmer, L. Beane 1951-07 s.n. Humboldt A few miles north of Arcata near U. S. Highway 101 Comment
  HSC58337  Lilium kelleyanum Overton, Butler 1979-8-2 12646 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC33260  Lilium kelloggii A. M. Montalvo, J. D. Ackerman 1974-8-1 399 Humboldt 1.0 mi. W of Kneeland Post Office on Greenwood Heights Rd. Comment
  UC175925  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  UC673408  Lilium occidentale Herbert L. Mason 1932-7-21 7106 Humboldt Trinidad Head Comment
  CAS-BOT-BC132963  Lilium rubescens Doris K. Kildale 1926-5-16 2001 Humboldt Miranda on South Fork of Eel River Comment
  HSC15581  Lilium rubescens Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  UC54669  Lilium rubescens Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UCR39794  Lilium rubescens D. K. Imper 1983-7-11 s.n. Humboldt Six Rivers National Forest. Forest Service Road 10N14 c. 2 mi north of junction with 13N01, north of Blue Lake 762 Comment
  UC1222535  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1950-7-1 18951 Humboldt near Friday Camp ((to Grouse Mt.)); Friday Ridge 1219 Comment
  HSC15780  Limnanthes douglasii D. E. Anderson 1965-5-8 3634 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  SD58470  Limnanthes douglasii W. L. Jepson, W. W. Mott 3 Jun-5 Jul 1903 2197 Humboldt From Ukiah to Southern Humboldt Co., via the Blue Rock Ridge and return via Fort Bragg. Comment
  UC1191670  Limonium californicum Malcolm A. Nobs and S. Galen Smith 1949-8-3 1203 Humboldt salt marshes bordering Humboldt Bay (ca 2 mi n of Eureka) Comment
  UC741169  Limonium californicum C. C. and S. K. Harris 1939-9-8 973 Humboldt Humboldt Bay; s shore, salt marsh Comment
  UCSB8725  Linaria vulgaris Phillips, Priscilla 1958-6-7 Humboldt Patrick's Point; near Trinidad Comment
  SD37712  Linaria vulgaris Edith A. Purer 1932-7-30 Humboldt Orick, roadside Comment
  SEINET10634291  Linum Daniel K. Harder 1994-10-4 Harder 2493 Humboldt Ca. 6 km W/SW of Fort Seward along Fort Seward Road along middle ridge (near powerlines), collections from rock outcrops in cattle pasture with islands of redwoods and Umbellaria; near small spring in hillside. 570 Comment
  HSC15802  Linum bienne F. B. Plett 1963-4-9 15 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC63066  Linum bienne David Wheeler 1979-5-23 135 Humboldt Humboldt State University campus by the Plant Operations yard. Comment
  UC14967  Listera caurina Joseph Burtt Davy 1899-6-19 5648 Humboldt near top of Ridge Hoopa Mt. Comment
  HSC37702  Listera cordata var. nephrophylla M. Mesler, J. D. Ackerman 1976-4-28 755 Humboldt 1 mi. E of old Hwy. 299 and Korbel turnoff, 1.5-2 mi. from Blue Lake, Simpson Demonstration Forest Comment
  JEPS37738  Lithocarpus densiflorus W. L. Jepson and W. W. Mott Jul 3 1903-Jul 5 1903 Humboldt Briceland; sw Humboldt County Comment
  JEPS46624  Lithocarpus densiflorus W. L. Jepson Aug 1902 Humboldt Briceland Comment
  UC667095  Lithophragma affine Joseph P. Tracy 1933-5-14 12174 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1196494  Lithophragma campanulatum Joseph P. Tracy 1932-7-18 10700 Humboldt head of Brett Hole Trinity Summit; Klamath Mountains, , head of Brett Hole 1828 Comment
  CAS-BOT-BC342349  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC283400  Lolium multiflorum Henry M. Pollard 1948-7-27 s.n. Humboldt Road to Red Cap Creek near Orleans Comment
  UC167234  Lolium multiflorum Jos. Burtt Davy and W. C. Blasdale 1899-7-30 6201 Humboldt Russ Ranch Comment
  HSC72637  Lolium perenne J. P. Smith 1977-7-3 9246 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  RSA32732  Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt Near Arcata. Comment
  POM206150  Lolium perenne subsp. multiflorum Jos Burtt Davy, W. C. Blasdale 1899-08 6169 Humboldt Near Garberville Comment
  SEINET200609 Image available Lolium temulentum J. P. Tracy 1935-5-25 13893 Humboldt Dobbyn Creek 152 Comment
  UC50698  Lolium temulentum Joseph Burtt Davy 1899-6-20 5690 Humboldt Hupa Valley Comment
  HSC100392  Lomaria spicant Carl C. Marshall Apr 1885 116 Humboldt Damp woods. Comment
  HSC98833  Lomatium ciliolatum var. ciliolatum Cara Witte 2007-5-31 142 Humboldt Off National Forest 1. Near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of road. 1510 Comment
  RSA167240  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1950-7-6 19000 Humboldt On the Albee Road, 2 miles south of Burr Valley Comment
  UC1222608  Lomatium macrocarpum Joseph P. Tracy 1951-6-26 19574 Humboldt vicinity of Twin Lakes Comment
  UC1438146  Lomatium tracyi Barbara Kelly 1978-5-1 589 Humboldt 1/4 mi from Horse Mountain Road, 1/2 mi below turnoff to summit, near end of unused gravel road. Comment
  UC1463742  Lomatium tracyi Barbara Kelly 1978-5-1 588 Humboldt 1/4 mi from Horse Mountain Road 1/2 mi below turnoff to summit, near end of unused gravel road Comment
  CHSC31276  Lonicera hispidula Mark Stopher 1980-5-28 73 Humboldt Growing on Lithocarpus densiflorus along Rte 169, 1.8 mi E of Martins Ferry Bridge. Comment
  RSA696526  Lonicera hispidula var. vacillans J. R. Bruff 1937-8-17 925 Humboldt Richardson Grove. Comment
  UC168948  Lonicera hispidula var. vacillans Joseph P. Tracy 1904-7-31 2132 Humboldt Eureka Northern Coast Region 0 Comment
  UCD137380  Lonicera involucrata Roman Gankin 1965-8-6 547 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  CAS-BOT-BC241490  Lonicera involucrata var. ledebourii Alice Eastwood 1923-8-14 12306 Humboldt Samoa Comment
  CHSC31282  Lonicera involucrata var. ledebourii Mark Stopher 1980-4-11 47 Humboldt Occasional in brushy areas along Elk River. 1 Comment
  HSC40297  Lonicera involucrata var. ledebourii Linda M. Barker 1976-4-30 1400 Humboldt 3 mi. W of Arcata Comment
  UC1222486  Lonicera involucrata var. ledebourii Joseph P. Tracy 1950-9-2 19346 Humboldt 2 mi s Field's Landing town Comment
  HSC98117  Lotus denticulatus Cara Witte, Michael Scott 2007-6-22 343 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  UC1223407  Lotus denticulatus Joseph P. Tracy 1933-7-9 12655 Humboldt near Willow Creek (on Trinity Highway) 304 Comment
  UC179922  Lotus denticulatus Joseph P. Tracy 1914-6-14 1240 Humboldt near Hydesville; Northern Coast Ranges, Van Duzen River, Yager Creek 30 Comment
  HSC98244  Lotus humistratus H. E. Parks Aug 1941 24183 Humboldt Little River State Park Comment
  RSA90323  Lotus humistratus F. W. Peirson 1926-7-13 7047 Humboldt Mad River, vicinity of Blue Lake. Comment
  UC162804  Lotus humistratus Joseph P. Tracy 1906-7-4 2531 Humboldt near Hydesville; Northern Coast Region, Yager Creek 60 Comment
  UC1197297  Lotus micranthus Joseph P. Tracy 1911-7-7 3435 Humboldt viz ridge n of Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC1197299  Lotus micranthus Joseph P. Tracy 1919-5-31 5146 Humboldt near Willow Creek (hillslopes at w side of Trinity River in valley of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC1197287  Lotus purshianus var. purshianus Joseph P. Tracy 1912-6-30 3713 Humboldt Eureka Northern Coast Region 0 Comment
  UC202015  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-28 5092 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  SEINET3560065 Image available Lotus subpinnatus Joseph P. Tracy 1906-7-4 2521 Humboldt Near Hydesville, Yager Creek 61 Comment
  UCD106707  Lotus uliginosus R. Tofsrud 1948-7-1 s.n. Humboldt Between Fields Landing and Loleta. Comment
  HSC57056  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-24 9714 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC90246  Lotus unifoliolatus var. unifoliolatus Jean Hanson 1980-6-22 107 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. W end of Island. Comment
  RSA21446  Lotus yollabolliensis C. B. Wolf 1937-8-12 9210 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  UC1196934  Ludwigia palustris Joseph P. Tracy 1923-6-27 6383 Humboldt shore of Lack Pond (opposite mouth of Willow Creek); Northern Coast Ranges, Trinity R. Valley, Lack Pond 182 Comment
  JEPS82250  Luina hypoleuca Roger Raiche 1983-7-19 30536 Humboldt w side Saddle Mt. (King Mt. Trail Road); King Mt. Range, Saddle Mt. 853 Comment
  RSA94105  Luina hypoleuca var. californica F. W. Peirson 1926-7-12 7026 Humboldt Humboldt County: Klamath River near Weitchpec Comment
  HSC6869  Lunaria annua D. Zittin 1970-5-13 1 Humboldt Arcata Comment
  HSC35035  Lupinus affinis Thomas W. Nelson, James Nelson 1975-5-24 1857 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC75509  Lupinus albicaulis J. O. Sawyer, R. J. Cole 1977-7-3 30016 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  SEINET202281  Lupinus albicaulis Joseph P. Tracy 1937-8-12 15656 Humboldt Snow Camp. 1402 Comment
  RSA167394  Lupinus albicaulis Joseph P. Tracy 1950-6-18 18849 Humboldt Wilder Ridge Comment
  HSC60073  Lupinus albifrons var. flumineus M. A. Baker 1978-5-6 498 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  BLMAR751  Lupinus arboreus Kate McGrath 2015-7-28 751 Humboldt Samoa Peninsula, Along New Navy Base Rd; through Recreation Area 1 Comment
  UCD106589  Lupinus arboreus Linda M. Barker 1976-5-13 1472 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA183596  Lupinus arboreus var. arboreus C. F. Zeillemaker 1964-4-7 64 -A-006 Humboldt Three miles southwest of Samoa on Samoa Peninsula at U.S. Coast Guard Station. 3 Comment
  RSA407035  Lupinus arboreus var. arboreus M. B. Dunkle 1936-8-18 4820 Humboldt Moonstone Beach. Comment
  POM349994  Lupinus benthamii var. benthamii Vera Townsend 1934-3-24 s.n. Humboldt Near Sequoia Comment
  SEINET10737707 Image available Lupinus constancei Thomas W. Nelson, Jane P. Nelson 1982-7-9 Nelson 7079 Humboldt Blocksburg Quadrangle. T1S, R5E, Sec. 36. Serpentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1768 Comment
  CAS-BOT-BC205382  Lupinus elmeri Charles Piper Smith 1947-7-14 47668 Humboldt Blake Lookout Road, South Fork Mountain, 0.3 miles north of Hyampom trail sign Comment
  HSC58603  Lupinus latifolius G. L. Clifton, Griswold 1979-7-25 10856 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  SD113410  Lupinus latifolius Darley F. Howe 1962-5-21 3296 Humboldt 11.5 miles north of Garberville on Hwy 101 91 Comment
  HSC70982  Lupinus latifolius subsp. viridifolius Gail Newton 1980-7-22 1663 Humboldt Near Devils Backbone 1554 Comment
  POM10720  Lupinus latifolius subsp. viridifolius H. P. Chandler 1901-06 13658 Humboldt Klamath River. 152 Comment
  UC169334  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-7-26 3863 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCD107969  Lupinus littoralis Linda M. Barker 1976-5-13 1495 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC14852  Lupinus nanus H. E. Parks 1930-5-25 869 Humboldt Laribee Valley 762 Comment
  BLMAR810  Lupinus nanus Madeleine Hassett 2017-6-8 810 Humboldt Headwaters Forest Reserve, old road clearing in second geowth redwood/fir Comment
  RSA15550  Lupinus nanus subsp. nanus Carl B. Wolf 1927-8-30 1244 Humboldt Paradise, 5 or 6 miles N of Ettersburg. Comment
  RSA0084061  Lupinus obtusilobus Jane P. Nelson 1974-5-27 1318 Humboldt Mendocine National Forest near Mendocino Pass. 1524 Comment
  HSC14860  Lupinus polyphyllus H. E. Parks, S. T. Parks May 1930 737 Humboldt Vicinity of Alton Comment
  HSC34627  Lupinus rivularis Lon Hall 1975-3-27 294 Humboldt Near Shelter Cove, above large meadow in bend of Bear Creek 366 Comment
  JEPS29845  Lupinus rivularis Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7835 Humboldt about 1 mi w of Carlotta (or about 1/2 mi e of Hydesville) Comment
  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
  HSC14894  Lupinus variicolor Francis Winter 1960-4-19 Humboldt Samoa Pennisula 6 mi. W of Arcata. Comment
  HSC98044  Luzula comosa Cara Witte 2007-5-31 163 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  HSC98577  Luzula comosa Cara Witte 2007-5-26 658 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 5N10. 1457 Comment
  HSC98824  Luzula comosa Cara Witte 2007-5-24 117 Humboldt Along National Forest 1. Approximately 1 mile south of intersection to Horse Mountain Mine and Communication Towers. 1412 Comment
  JEPS67158  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt Near Ruby Creek, Willow Creek Canyon, Northern Coast Ranges, 609 Comment
  UC1152126  Luzula parviflora Harold E. Parks and Joseph P. Tracy 1947-7-5 17811 Humboldt vicinity Box Camp (w side Trinity Summit); , vicinity Box Camp 1463 Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  LA5619  Lycopodium clavatum H. E. Parks; W. K. Parks 1932-7-30 1132 Humboldt Trinidad, Camp 21, Hammond Lumber Company 152 Comment
  RSA210023  Lycopodium clavatum H. E. Parks, W. C. Parks 1932-7-30 1132 Humboldt Camp 21, Hammond Lumber Compant. Trinidad. Humboldt County. Altitude 500 feet. 152 Comment
  LA31994  Lycopus uniflorus H. E. Parks; Joseph P. Tracy 1924-8-3 6765 Humboldt Big Lagoon 6 Comment
  UC552469  Lycopus uniflorus Eleanor Armstrong 1934-8-23 1175 Humboldt Richardson Grove 121 Comment
  CHSC2104  Lysichiton americanus M. Anthony 1960-5-14 Humboldt N. coastal. Comment
  UC1198466  Lythrum hyssopifolia Joseph P. Tracy 1920-8-15 5380 Humboldt Klamath River at Bluff Creek, Northern Coast Ranges Bluff Creek; Northern Coast Ranges, Klamath River, Bluff Creek 152 Comment
  HSC101056  Lythrum salicaria Sydney Carothers 1997-8-19 207 Humboldt Hwy. 36, north end of dividerless road; private property 732 Comment
  UC1199114  Madia Joseph P. Tracy 1906-7-4 2537 Humboldt on bar of Yager Creek; Hydesville 60 Comment
  CAS-BOT-BC342798  Madia elegans Carl B. Wolf 1927-8-28 1162 Humboldt On the Trinity River, 3 miles from Weitchpec Comment
  RSA15579  Madia elegans subsp. elegans C. B. Wolf 1927-8-28 1162 Humboldt On the Trinity River, 3 miles from Weitchpec Comment
  JEPS7387  Madia gracilis Joseph P. Tracy 1932-7-13 10494 Humboldt at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC1199396  Madia gracilis Joseph P. Tracy 1912-6-9 3653 Humboldt Alton Northern Coast Ranges 30 Comment
  HSC79470  Madia gracilis Kenneth Clark 1980-5-10 634 Humboldt Along access trail to Dead Man's Gulch 122 Comment
  POM214875  Madia gracilis Joseph P. Tracy 1932-7-13 10494 Humboldt Klamath Mountains: Trinity Summit, open ground at Corral Prairie 1524 Comment
  CHSC2299  Maianthemum dilatatum M. Anthony 1960-5-14 Humboldt Arcata. Comment
  HSC15592  Maianthemum dilatatum J. W. Johnson 1962-4-21 1287 Humboldt Samoa Peninsula, Arcata Comment
  POM87668  Maianthemum dilatatum Le Roy Abrams, Rimo C. Bacigalupi 8300 Humboldt Near northern county line Comment
  RSA1087  Maianthemum racemosum subsp. amplexicaule E. R. Johnson 1928-8-26 1147 Humboldt Arcata. Comment
  CAS-BOT-BC511456  Maianthemum racemosum subsp. amplexicaule Joseph P. Tracy 1932-7-12 10463 Humboldt Trinity Summit, ridge east of Coral Prairie 1828 Comment
  SEINET12050378  Maianthemum racemosum subsp. amplexicaule F. H. Utech 1988-1 88 -270 Humboldt 14 mi W of Bridgeville to Carlotta on CA 36, Mile Marker 11.40, Van Duzen Co. Park (Pamplin Grove) 50 Comment
  RSA377722  Maianthemum stellatum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3509 Humboldt Alder Springs 1524 Comment
  HSC18693  Malus fusca J. W. Johnson 1962-4-18 1253 Humboldt Above S pasture, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC14182  Malus fusca W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  UC303165  Malus fusca Joseph P. Tracy 1923-6-20 6304 Humboldt White Thorne Valley; Northern Coast Ranges 304 Comment
  HSC100569  Malva nicaeensis Carl C. Marshall Sep 1887 493 Humboldt Near lannery, Arcata and Salmon Creek. Comment
  SJSU11759  Marah oregana R. D. Spadoni 1965-3-26 Humboldt Trinidad Comment
  HSC79458  Medicago minima Kenneth Clark 1980-4-18 586 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  HSC37910  Medicago polymorpha Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  SEINET7296138 Image available Melica altissima Joseph P. Tracy 1937-1 15549 Humboldt Trinity Summit; On Ridge 2 miles east of Grove's Prairie. 1524 Comment
  RSA10102  Melica harfordii Joseph P. Tracy 1926-6-20 7651 Humboldt Horse Mountain. 1524 Comment
  UC53675  Melica harfordii Jos. Burtt Davy 1899-6-19 5661 A Humboldt Hoopa Mt. Humboldt; Hoopa Mt. Comment
  HSC10367  Melica subulata R. D. Zortman 1963-5-5 31 Humboldt 5 mi. NE of Arcata, S of Mad River, off Warren Creek Rd. 91 Comment
  HSC70484  Melica subulata Gail Newton 1980-7-20 1631 Humboldt Near Bell Swamps. 1426 Comment
  UC1222472  Melilotus albus Joseph P. Tracy 1949-7-7 18336 Humboldt Blue Slide Van Duzen River 91 Comment
  UC1225834 Image available Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt 2 mi s Field's Landing (along edges of foothills); s of Field's Landing 6 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
  UC195433  Mentha spicata Joseph P. Tracy 1915-9-5 4666 Humboldt Eureka; Northern Coast Regioin, Eureka 0 Comment
  JEPS42849  Mentzelia laevicaulis var. laevicaulis W. L. Jepson 1932-7-25 16397 Humboldt Eel River, Old Camp Grant Comment
  UC34932  Mentzelia laevicaulis var. laevicaulis Hy Am-Pum 1888-7-25 Humboldt Comment
  HSC91898  Menziesia ferruginea E. Mackey 1986-5-13 Humboldt Patrick's Point State Park, Octopus Grove Comment
  CAS-BOT-BC428712  Micranthes californica Joseph P. Tracy 1927-3-27 7851 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork. 182 Comment
  HSC73173  Micropus californicus var. californicus M. A. Baker 1980-5-18 1337 Humboldt Near Black Mtn. 792 Comment
  UC582509  Micropus californicus var. californicus Joseph P. Tracy 1932-5-1 9854 Humboldt vicinity Garberville 121 Comment
  UC1223203  Microseris bigelovii Joseph P. Tracy 1938-5-31 18014 Humboldt near Alder Point (along road to Harris, 1 mi sw) Comment
  UC180181  Microseris borealis Joseph P. Tracy 1914-9-6 4611 Humboldt peat bog near Seidell Ranch (between High Prairie and Snow Camp); Northern Coast Ranges, Bald Mountain 1219 Comment
  CAS-BOT-BC322685  Microseris laciniata M. S. Jussel 1931-5-2 s.n. Humboldt Near Garberville Comment
  UC1223195  Microseris laciniata subsp. laciniata Joseph P. Tracy 1942-6-15 17152 Humboldt 1/2 mi ne Garberville (on the road to Harris) 304 Comment
  HSC44540  Microseris nutans Brad Klipfel 1973-7-15 158 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74440  Microseris nutans M. A. Baker 1980-6-28 2478 Humboldt Near Mad River Buttes 1445 Comment
  UC1199450  Microseris nutans Joseph P. Tracy 1933-7-25 12886 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC582731  Microseris nutans Joseph P. Tracy 1932-7-11 10417 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC6101  Microseris nutans W. K. Parks 1933-7-15 5263 Humboldt South Fork Mtn. 1677 Comment
  HSC32151  Microsteris gracilis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5613 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC75437  Microsteris gracilis J. O. Sawyer 1980-7-18 3593 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA245267  Mimulus aurantiacus var. aurantiacus C. L. Davidson 1967-7-7 20 Humboldt North Bank Rd Comment
  UC677720  Mimulus aurantiacus var. aurantiacus C. C. and S. K. Harris 1936-6-9 681 Humboldt above Carlotta 60 Comment
  SEINET3365865 Image available Mimulus breweri Joseph P. Tracy 1932-7-10 10375 .5 Humboldt Trinity Summit Corral Prairie in wet meadow 1585 Comment
  POM273296  Mimulus cardinalis Lyman Benson 1928-7-12 491 Humboldt Weott Ranger Station, North Coast, Seaward Mt. Range on S. Fork Eel River 61 Comment
  JEPS22954  Mimulus dentatus Volney Rattan June 1882 Humboldt Humboldt Bay Comment
  UC1281762  Mimulus dentatus Richard Spellenberg 1965-6-14 1133 Humboldt about 1 1/2 mi e Bayside (on road leading up to Jacoby Creek (Bayside is 2 mi s of Arcata)) Comment
  UC1222805  Mimulus grandis Joseph P. Tracy 1950-6-8 18745 Humboldt 1 mi e Cape Mendocino (near Capetown); Cape Ridge 152 Comment
  HSC102597  Mimulus guttatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1584 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC71741  Mimulus guttatus M. A. Baker 1980-6-26 2421 Humboldt Near Sims Creek 610 Comment
  RSA18014  Mimulus guttatus Carl B. Wolf 1927-8-22 779 Humboldt Big Lagoon. Comment
  HSC31742  Mimulus guttatus Donald Spalinger 1974-5-12 59 Humboldt Bald Hills Rd., 1.5 mi. E from junction with Hwy. 101 229 Comment
  RSA454336  Mimulus guttatus Francis W. Pennell, Joseph P. Tracy 1940-7-7 26087 Humboldt Route 299. Headwaters of Willow Creek. 762 Comment
  SEINET4677981  Mimulus guttatus Unknown 1971-7-5 105 Humboldt Approx. 8 miles east of Petrolia.; 0 Comment
  JEPS10794  Mimulus inodorus Lincoln Constance 1934-6-18 895 Humboldt border N. Dyerville Flat (near South Fork R.R. Station and P.O.); South Fork Eel River, Bull Creek Region Comment
  UC1196803  Mimulus layneae Joseph P. Tracy 1937-7-5 15373 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC582599  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  HSC55881  Mimulus moschatus G. L. Clifton, Griswold 1979-7-25 10946 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC56067  Mimulus moschatus G. L. Clifton, Griswold 1979-7-31 11733 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC74735  Mimulus moschatus Gail Newton 1981-7-24 2315 Humboldt Near Chaparral Mtn. 1433 Comment
  RSA447970  Mimulus moschatus E. S. Spalding, Williamson 1924-7-11 s.n. Humboldt Arcata. Comment
  HSC35623  Mimulus moschatus Thomas W. Nelson, B. Reinhardt 1975-7-30 2109 Humboldt Whiting Spring Comment
  RSA80459  Mimulus moschatus var. sessilifolius F. W. Peirson 1926-7-12 7038 Humboldt Orick. Comment
  HSC103113  Mimulus nanus M. Mesler 2010-7-21 837 Humboldt South Fork Mtn, FS rd 4N12 1700 Comment
  UC147917  Mimulus nasutus Joseph P. Tracy 1903-5-22 1883 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  UC169323  Mimulus nasutus Harley P. Chandler 1901-6-16 1509 Humboldt Somes Bar North Coast Ranges, Klamath River 426 Comment
  UC213145  Mimulus nasutus Joseph P. Tracy 1920-5-18 5329 Humboldt 4 mi above Dyerville; Northern Coast Ranges, South Fork Eel River 60 Comment
  JEPS28974  Mimulus pulsiferae Joseph T. Gregory 1933-7-25 473 Humboldt Titlow Mt. 1371 Comment
  HSC97557  Minuartia nuttallii subsp. gregaria Cara Witte 2007-6-1 164 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1311 Comment
  UC1103535  Minuartia pusilla Joseph P. Tracy 1904-4-24 2030 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  HSC20242  Mitella caulescens D. E. Anderson 1967-6-7 4350 Humboldt Along Puter Creek, tributary to Mad River, about 3 mi. S of Blue Lake Comment
  CAS-BOT-BC433010  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt Along trail from Hoopa to the summit. Trinity Summit. Near Box Camp 1524 Comment
  HSC16011  Modiola caroliniana J. P. Tracy 1940-10-18 16777 Humboldt Trinidad 3 Comment
  UC18805  Modiola caroliniana Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6176 Humboldt near Ferndale; North-Western California Comment
  UC275345  Modiola caroliniana Joseph P. Tracy 1923-6-18 6288 Humboldt Northern Coast Ranges, Petrolia Petrolia Petrolia Petrolia; Northern Coast Ranges, Petrolia 60 Comment
  HSC64760  Moehringia macrophylla Bruce Gordon 1980-4-10 141 Humboldt Redwood National Park, 60 m NE of Bald Hills Rd., 0.4 mi. NE of jct. of Bald Hills Rd. and K&K Rd Comment
  HSC57942  Monardella glauca G. L. Clifton, Griswold 1979-7-31 11612 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58145  Monardella odoratissima subsp. pallida Gilbert Muth 1979-8-1 12183 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1781 Comment
  CAS-BOT-BC220520  Monardella villosa Jos. Burtt Davy 1899-6-20 5697 Humboldt Hoopa Valley Comment
  HSC34741  Monardella villosa Thomas W. Nelson 1974-7-19 1674 Humboldt McKeown Ranch N of Dinsmore Comment
  POM283164  Monardella villosa Lyman Benson 1928-7-12 476 Humboldt Weott Ranger Station. 61 Comment
  JEPS62397  Monardella villosa subsp. villosa W. L. Jepson 1927-7-3 12370 Humboldt Garberville South Fork Eel River 365 Comment
  UC2035872  Monardella villosa subsp. villosa Carl B. Wolf 1934-7-3 5923 Humboldt Weithpec junction of Klamath River and Trinity River 200 yards. west of school. 304 Comment
  CAS-BOT-BC445045  Montia linearis Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC58648  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-7-31 11669 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58649  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-7-31 11677 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  RSA152302  Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit. 1829 Comment
  UCD86805  Muhlenbergia mexicana Joseph P. Tracy 1921-9-4 5957 Humboldt Trinity River Valley. Along Trinity River, at mouth of South Fork. 152 Comment
  JEPS70790  Myosotis discolor W. L. Jepson 1936-8-17 17917 Humboldt 2 mi. s. Fields Landing Comment
  HSC3737  Myosotis discolor D. E. Anderson 1963-5-25 2490 Humboldt Ca. 1 mi. S of Capetown Comment
  HSC3746  Myosotis discolor D. E. Anderson 1965-5-22 3720 Humboldt Road to Blocksburg, 3 mi. S of Bridgeville. Comment
  HSC12417  Myosotis sylvatica D. Santana 1970-11-15 115 Humboldt Near Fickle Hill Rd. and 7th St. Comment
  SEINET5624090 Image available Myosotis versicolor Joseph P. Tracy 1942-1 17116 Humboldt Englewood Prairie Comment
  CAS-BOT-BC101667  Myrica californica C. Hart Merriam 1921-8-19 s.n. Humboldt Big Lagoon Comment
  UC1197938  Myrica californica J. P. Tracy 1901-4-21 1034 Humboldt immediate vicinity Eureka (Ricks Prairie); Ricks Prairie 0 Comment
  CDA20056  Myriophyllum aquaticum R. Spadoni, Green 2002-10-9 PDR P 070866 -A Humboldt Pacific Lumber Co, Scotia. 0 Comment
  HSC90662  Nasturtium officinale Gail Newton 1982-6-10 3637 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC59207  Nasturtium officinale Terry Roth 1979-4-28 19 Humboldt Glendale exit off of Hwy. 299, gravel road towards Mad River 30 Comment
  HSC6871  Nasturtium officinale D. E. Anderson 1961-9-13 1815 Humboldt Trinidad Beach Comment
  HSC55854  Navarretia divaricata G. L. Clifton, Griswold 1979-7-25 10837 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS70319  Navarretia intertexta Joseph P. Tracy 1898-7-14 91 Humboldt near Hydesville Comment
  JEPS70338  Navarretia intertexta Lincoln Constance 1934-5-27 697 Humboldt s end Dyerville Bridge (South Fork Eel River); , Bull Creek Region 45 Comment
  UC60881  Navarretia intertexta Harley P. Chandler Jun 1901 1392 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC1198603  Navarretia intertexta Joseph P. Tracy 1906-7-4 2525 Humboldt near Carlotta (near Hydesville); Northern Coast Region 60 Comment
  UC908144  Navarretia intertexta Joseph P. Tracy 1932-6-14 10162 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC198644  Navarretia squarrosa Joseph P. Tracy 1917-9-3 4857 Humboldt Jones Ranch, lower slopes of Grouse Mountain Northern Coast Ranges, Grouse Mountain 914 Comment
  UC1103814  Nemophila menziesii Joseph P. Tracy 1923-6-24 6358 Humboldt Murphy Ridge Bald Mt., Murphy Ridge (Balt Mt.) 1066 Comment
  UC1239736  Nemophila menziesii Joseph P. Tracy 1935-5-26 13910 Humboldt Lone Star Creek , Lone Star Creek (Iaqua Region) 609 Comment
  HSC97503  Nemophila menziesii var. atomaria C. Witte 2007-5-8 1 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  HSC10922  Nemophila parviflora Francis Winter 1960-4-24 Humboldt 2 mi. N of Hwy. 299, on Redwood Creek Rd. 396 Comment
  JEPS2987  Nemophila parviflora Lincoln Constance 1934-5-23 606 Humboldt se slope of mt. above Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, above Look Prairie 365 Comment
  UC1239748  Nemophila parviflora Joseph P. Tracy 1914-6-14 4510 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC67161  Nemophila parviflora Harley P. Chandler May, 1901 1270 A Humboldt North Coast Ranges 152 Comment
  JEPS1926  Nemophila pedunculata Joseph P. Tracy 1927-3-27 7858 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, nr South Fork Trinity River Valley 182 Comment
  CAS-BOT-BC233456  Nicotiana glauca Clare R. Wheeler 1979-8-13 1205 Humboldt Avenue of the Giants, SW Mailliard Grove, Humboldt State Park 152 Comment
  HSC97450  Noccaea fendleri subsp. glauca Cara Witte 2007-6-7 216 Humboldt Clear Lake. At end of 6N01B. 3 miles south of Titlow Hill. 1533 Comment
  HSC99041  Noccaea montana subsp. montana Cara Witte 2008-7-1 777 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  UC902226  Nothochelone nemorosa Joseph P. Tracy 1948-8-15 18138 Humboldt on Ridge 2 mi e of Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  UC582473  Nuttallanthus texanus Joseph P. Tracy 1928-5-6 8431 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC142252  Oemleria cerasiformis C. Hart Merriam 1918-1-1 s.n. Humboldt Blue Lake Comment
  CAS-BOT-BC142290  Oemleria cerasiformis L. R. Abrams 1918-6-16 7190 Humboldt Willow Creek Comment
  CHSC35519  Oemleria cerasiformis Thomas Nelson 1976-3-22 2276 Humboldt On hillside beside Eureka Muni. Golf Course. Comment
  HSC104317  Oemleria cerasiformis Richard Spjut 2008-6-14 16347 Humboldt North Coast Ranges; Old highway along west side of Hwy. 101 between Loleta and Fortuna 25 Comment
  HSC22513  Oemleria cerasiformis D. E. Anderson 1965-4-24 3536 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  HSC77344  Oemleria cerasiformis L. P. Janeway 1983-4-16 231 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  UCD81853  Oenanthe sarmentosa Chuck Hughes 2009-6-18 102 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  UC1007123  Oenothera glazioviana P. A. Munz 1936-8-13 14384 Humboldt 7 mi e Arcata Comment
  UC1196945  Oenothera wolfii Joseph P. Tracy 1934-8-24 13598 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC62992  Orobanche uniflora David Wheeler 1979-5-24 153 Humboldt Gray's Falls above the Trinity River. Comment
  HSC54894  Orthilia secunda G. L. Clifton, Griswold 1979-7-25 10935 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CAS-BOT-BC458029  Orthilia secunda Carl B. Wolf 1937-8-13 9264 Humboldt North Coast Range, 12 mi. E of Hoopa Valley on new road twoards Trinity Summit 1676 Comment
  UC1212578  Orthilia secunda Francia Chisaki and Helen Sharsmith 1959-8-21 4758 Humboldt Happy Camp just over line from trinity County 914 Comment
  HSC56205  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-8-2 12197 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC168993  Orthocarpus imbricatus Mrs. M. H. Manning Aug. 1899 Humboldt Trinity Summit Comment
  HSC102550  Osmorhiza berteroi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1538 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC96296  Osmorhiza occidentalis Laurel Goldsmith, Wanda Naylor 2005-6-10 7 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  JEPS14242  Osmorhiza occidentalis Joseph P. Tracy 1930-6-29 8810 Humboldt Buck Mountain; lower foothills of nw slope 762 Comment
  RSA254742  Osmorhiza purpurea Thomas W. Nelson, James Nelson 1973-5-28 945 Humboldt McKeown Ranch north of Dinsmore. Comment
  CDA18211  Oxalis corniculata G. D. Barbe, T. C. Fuller 1974-6-17 1839 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  HSC16702  Oxalis oregana A. E. Inman 1962-5-25 Humboldt E bank of Mad River, W of Camp Bauer Comment
  SBBG25583  Oxalis oregana E. R. Blakley 1966-8-17 6794 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  SDSU604  Oxalis oregana D. F. Howe 1962-5-22 3309 Humboldt 3 miles east of Orick on Bald Mt. road. 396 Comment
  HSC59664  Oxalis oregana George Kirn 1977-10-3 Humboldt Vicinity of Jolly Giant Creek, 1/4 mi. E of HSU campus 46 Comment
  HSC69850  Oxalis oregana R. Kalal 1979-5-5 42 Humboldt Fickle Hill Rd., 1.0 mi. E of 11th St. 183 Comment
  SEINET3347653 Image available Oxalis oregana Loran C. Anderson 1949-6-4 Humboldt South of Eureka Comment
  UC1103420  Oxalis oregana Joseph P. Tracy 1923-5-13 6198 Humboldt near Strong's Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  POM87947  Oxalis rubra L. R. Abrams 1922-6-25 8263 Humboldt Between Trinidad and Big Lagoon Comment
  UC668042  Oxalis trilliifolia Joseph P. Tracy 1936-8-8 15143 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC183769  Paeonia brownii Joseph P. Tracy 1913-6-17 4150 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  UC1103781  Panicum acuminatum var. acuminatum Joseph P. Tracy 1927-5-14 8003 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley nr South Fork 182 Comment
  UC1254537  Panicum acuminatum var. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt 5 mi s Garberville (bank of South Fork Eel River at Hwy 101); bank of S Fk Eel River Comment
  SEINET3133169  Panicum lanuginosum var. fasciculatum R. W. Spellenberg 1966-9-8 1630 Humboldt Bank of S. Fk. Eel River at Hwy. 101, 5 mi S of Barberville Comment
  OBI36624  Parapholis incurva David J. Keil 1983-7-2 17303 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  UCSB30624  Parentucellia viscosa Edwards, David 1974-8-14 Humboldt 3/4 mi. in on dirt road from jct. with Fickle Hill Rd. ca. 1/4 mi. E. of jct. of Park Ave. and Fickle Hill Rd.; where dirt road forks several ways. ca. 50 ft. S. of power line twr. Arcata 121 Comment
  CAS-BOT-BC259727  Paspalum distichum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC10525  Paspalum distichum Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  UC642347  Pastinaca sativa Joseph P. Tracy 1937-10-31 15694 Humboldt Rio Dell 30 Comment
  HSC98075  Paxistima myrsinites Cara Witte 2007-7-12 525 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  UC249517  Pectocarya pusilla Joseph P. Tracy 1922-4-30 5993 Humboldt near Willow Creek; Nothern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC69338  Pellaea brachyptera Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC20958  Penstemon anguineus Milo S. Baker 1947-8-10 11911 Humboldt Near end of Forest Rd. from Hoopa towards Trinity Summit 1372 Comment
  HSC55753  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-26 10285 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC97964  Penstemon anguineus Cara Witte 2007-6-21 321 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  RSA43894  Penstemon deustus subsp. deustus H. M. Pollard 1947-8-30 s.n. Humboldt North road along Klamath River near Van Fleet Ranch, Orleans region. Comment
  UC774991  Penstemon parvulus Carl B. Wolf 1937-8-13 9220 Humboldt on new road towards Trinity Summit 8 mi e Hoopa Valley; North Coast Range 1219 Comment
  HSC81903  Penstemon procerus var. brachyanthus Thomas W. Nelson 1979-7-11 4995 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  RSA167232  Penstemon rattanii subsp. rattanii Joseph P. Tracy 1951-6-24 19533 Humboldt Kneeland Prairie, 'Cameron Hill'. Comment
  HSC39178  Pentagramma triangularis D. E. Anderson, J. P. Smith 1971-6-28 - 1223 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC39986  Pentagramma triangularis Linda M. Barker 1976-3-11 1329 Humboldt 3 mi. W of Arcata Comment
  RSA0060250  Pentagramma triangularis H. S. Logsdon 1964-5-16 s.n. Humboldt 3.0 mi SE of Bayside on Jacoby Creek Rd. Comment
  CAS-BOT-BC71620  Pentagramma triangularis subsp. triangularis Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  CAS-BOT-BC71615  Pentagramma triangularis subsp. triangularis Henry M. Pollard 1946-9-7 s.n. Humboldt Woodson Mine, Orleans Mt. Comment
  UC906651  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1947-8-24 17894 Humboldt Box Camp Trinity Summit 1463 Comment
  UC1197126  Perideridia gairdneri subsp. borealis J. P. Tracy 1906-11-4 2555 Humboldt near Eureka; Immediate vicinity of Eureka 0 Comment
  HSC98906  Perideridia kelloggii Cara Witte 2008-8-16 1029 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1579 Comment
  UC642297  Perideridia kelloggii Joseph P. Tracy 1930-10-26 9238 Humboldt Valley of South Yager Creek 762 Comment
  SEINET13978219 Image available Petasites frigidus var. palmatus R. R. Halse 2016-1 9684 Humboldt Along US Hwy 101 ca. 9.6 mi S of Orick. 8 Comment
  RSA183572  Petasites palmatus R. I. Bonn 1965-3-5 4 Humboldt 4 miles west of Arcata on Samoa Road. Comment
  CHSC110702  Phacelia corymbosa Dean Wm. Taylor 2004-6-24 19129 Humboldt North Coast Ranges. Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  UC562558  Phacelia corymbosa Joseph P. Tracy 1926-6-20 7624 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  HSC98877  Phacelia egena Cara Witte 2007-5-29 137 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  UC1199105  Phacelia egena Joseph P. Tracy 1938-5-1 15735 Humboldt Willow Creek Trinity River Valley (stony flat along river) 152 Comment
  HSC76575  Phacelia hastata Teresa Prendusi 1981-7-24 485 Humboldt Near Whiteys Peak 1585 Comment
  POM127633  Phacelia heterophylla subsp. virgata H. P. Chandler 1901-05 1257 Humboldt Redwood belt. 152 Comment
  CDA40417  Phacelia heterophylla subsp. virgata Kaylea Eickhoff, Cara M. Witte 2005-6-8 6 Humboldt Northwestern California; 1.7 miles south of Hwy 299 on Titlow Hill Road. Comment
  JEPS1200  Phacelia malvifolia Joseph P. Tracy 1934-6-10 13212 Humboldt DRY LAGOON (Along coast in front South End of Stone Lagoon.) Comment
  BLMAR159  Phacelia nemoralis subsp. nemoralis Donald Hazlett 1994-6-7 159 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC13670  Phacelia nemoralis subsp. oregonensis D. E. Anderson 1963-3-16 2391 Humboldt Scotia Bluffs Comment
  UC562570  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1936-6-9 14876 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  JEPS1090  Phacelia procera Joseph P. Tracy 1932-7-12 10431 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC10559  Phalaris californica E. W. Styskel 1964-5-10 87 Humboldt 1.5 mi. SE of Redcrest along Hwy. 101 Comment
  UCD89189  Phalaris minor A. H. Murphy 1951-6-6 s.n. Humboldt W Roscoe at Upper Mattole. Comment
  CAS-BOT-BC250685  Phalaris paradoxa W. A. Silveus 1931-6-9 2990 Humboldt Dyerville Comment
  CAS-BOT-BC76572  Philadelphus lewisii A. A. Heller 1923-7-9 13776 Humboldt About 5 miles east of Arcata along the road to Blue Lake in teh redwood belt. Comment
  HSC58693  Phleum alpinum Overton, Butler 1979-8-2 12694 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC962098  Phleum alpinum Joseph P. Tracy 1934-7-2 13294 Humboldt Trinidad 3 Comment
  HSC44533  Phlox adsurgens Brad Klipfel 1973-7-1 140 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC52379  Phlox diffusa Joseph Burtt Davy and Walter C. Blasdale 1899-5 5790 Humboldt Trinity Summit Comment
  UC1198562  Phlox gracilis Joseph P. Tracy 1906-5-6 2447 Humboldt near Hydesville (hillside of Wolverton Gulch); Northern Coast Region, Wolverton Gulch 60 Comment
  HSC74351  Phoenicaulis cheiranthoides Gail Newton 1980-6-28 741 Humboldt Near Mad River Butte. 1536 Comment
  HSC62687  Phoradendron serotinum subsp. macrophyllum Michelle Stevens 1979-5-12 146 Humboldt Just before Camp Bauer in Korbel along the N Fork of the Mad River Comment
  RSA609411  Phoradendron villosum Louis C. Wheeler 1958-8-7 7370 Humboldt Fort Baker Manganese Mine. Comment
  HSC92126  Phyllospadix scouleri G. Smith 1967-7-21 1979 Humboldt Patrick's Point State Park 0 Comment
  CAS-BOT-BC451997  Phyllospadix scouleri Robert F. Thorne 1957-9-3 19016 Humboldt At Abalone Point, Patrick's Point State Park Comment
  HSC90650  Phyllospadix scouleri L. Watson, J. Meninga Sep 1991 43 Humboldt Arcata, Mad River Slough and dunes Comment
  CAS-BOT-BC140586  Physocarpus capitatus Doris K. Kildale 1926-5-15 3158 Humboldt Petrolia Bridge, Mattole River Valley Comment
  HSC31559  Physocarpus capitatus Glenn McGourty 1974-6-1 76 Humboldt Comment
  HSC93254  Picea sitchensis Gordon Leppig 1998-3-15 719 Humboldt Quarry Rd. off Jacoby Creek 98 Comment
  OBI33130  Picea sitchensis David J. Keil 1983-7-1 17295 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  UC137  Picea sitchensis J. P. Tracy 1901-4-17 Humboldt Samoa; Humboldt Bay Comment
  SEINET11809969  Picris echioides J. P. Tracy 1948-1 18098 Humboldt 2 mi W of Bridgeville Comment
  HSC1480  Pinus contorta J. R. Kahl 1962-4-13 15 Humboldt 1 mi. N of Samoa, 1,200 yds. from ocean Comment
  SD41322  Pinus contorta Edith A. Purer 1932-7-27 4132 Humboldt Samoa, near Arcata Comment
  UC519311  Pinus jeffreyi Joseph P. Tracy 1983-8-30 13007 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1371 Comment
Read comments
Jun 28 2015
  CAS-BOT-BC73114  Pinus lambertiana Doris K. Kildale 1926-8-15 2543 Humboldt Hoopa Mt. 792 Comment
  CAS-BOT-BC73115  Pinus lambertiana Doris K. Kildale 1928-10-7 6755 Humboldt Willow Creek Canyon, 7 miles from Willow Creek. Comment
  CAS-BOT-BC72733  Pinus sabiniana Doris K. Kildale 1928-10-7 6753 Humboldt Willow Creek Flat - Trinity River Valley Comment
  UC14939  Piperia elegans Harley P. Chandler Jun 1901 1385 b Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC180192  Piperia elegans Joseph P. Tracy 1914-8-30 4596 Humboldt Humboldt Bay Northern Coast Region Comment
  UC1196430  Piperia transversa Joseph P. Tracy 1949-8-4 18420 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC81667  Plagiobothrys bracteatus Thomas W. Nelson, Jane P. Nelson 1980-7-15 6069 Humboldt Old logging rds. SE of Lundbar Hills 30 Comment
  UC552842  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-2 13923 Humboldt Big Lagoon 3 Comment
  UC54757  Plagiobothrys tenellus Harley P. Chandler May, 1901 1087 Humboldt Harris 609 Comment
  UC1225811  Plantago lanceolata Joseph P. Tracy 1947-8-10 17882 Humboldt Eureka 30 Comment
  HSC99488  Plantago lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 147 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
  OBI11636  Plantago major Joseph P. Tracy 1942-7-25 17300 Humboldt Fickle Hill, 6 mi SE of Arcata Comment
  CDA18205  Plantago maritima G. D. Barbe, T. C. Fuller 1974-6-17 1831 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  RSA15562  Plantago maritima Carl B. Wolf 1927-8-29 1210 Humboldt Devils' Gate, S of Cape Mendocino Comment
  HSC26448  Plantago maritima T. O. Osborne 1970-5-17 4 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  UC1196133  Plantago subnuda J. P. Tracy 1901-6-30 1212 Humboldt immediate vicinity Eureka 0 Comment
  HSC70504  Platanthera dilatata var. leucostachys Gail Newton 1980-7-20 1612 Humboldt Near Bell Swamps 1426 Comment
  HSC99138  Platanthera dilatata var. leucostachys Cara Witte 2008-8-6 1002 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  RSA382868  Platanthera leucostachys Brad W. Klipfel 1973-7-31 255 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  CAS-BOT-BC91643  Platystemon californicus Mark Bransom; Daniel Brown; Ron Hildebrandt; Nina Meiselman 1986-4-19 10 Humboldt Across Route 299 from White's Bar picnic area. 0.25 mile up roadbank. Comment
  HSC16792  Platystemon californicus J. W. Johnson 1962-8-18 1245 Humboldt Arcata, Mad River County Park Comment
  SFV18500  Platystemon californicus A. M. Deshais 2002-4-12 36 Humboldt Manila Dunes. Comment
  UC162915  Platystemon californicus Joseph P. Tracy 1911-5-27 3192 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  UC169026  Plectritis brachystemon J. P. Tracy 1908-7-9 2833 Humboldt Buck Mountain 1219 Comment
  UC1239587  Plectritis congesta Joseph P. Tracy 1921-6-12 5814 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1239597  Plectritis congesta Joseph P. Tracy 1938-7-7 16032 Humboldt North Coast Ranges, Grouse Mountain, at Cold Springs Grouse Mountain; North Coast Ranges, , Cold Springs 1432 Comment
  BLMAR628  Plectritis congesta subsp. brachystemon Jennifer Wheeler 2011-6-15 628 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  HSC21693  Plectritis congesta subsp. brachystemon R. T. Forester 1963-4-23 21 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC77949  Plectritis congesta subsp. brachystemon Jimerson, Imper 1982-5-17 1439 Humboldt Near Ashfield Ridge. 822 Comment
  HSC96230  Plectritis congesta subsp. brachystemon Kaylea Eickhoff, Cara M. Witte 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  HSC63190  Pleuricospora fimbriolata M. A. Baker 1979-6-28 942 Humboldt Middle fork of Mill Creek. Comment
  UC1145106  Pleuropogon refractus Joseph P. Tracy 1950-7-2 18961 Humboldt 6 mi. n.e. Hawkins Bar (at Fern Spring, Happy Camp Mt..); Trinity Summit Range, Happy Camp Mt., Fern Spring 1280 Comment
  UC1258192  Pleuropogon refractus Paul But with Grace Law 1976-5-15 P 28 Humboldt 3 mi n of Eureka (along Jacoby Creek Road); Jacoby Creek Comment
  UC1145113  Poa annua Joseph P. Tracy 1937-5-17 15294 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1103791  Poa bolanderi Joseph P. Tracy 1935-7-28 14334 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  HSC38919  Poa confinis Linda M. Barker 1976-4-30 1412 Humboldt 3 mi. W of Arcata Comment
  UC525631  Poa confinis Joseph P. Tracy 1927-6-26 8209 Humboldt Stone Lagoon; North Coast Region 6 Comment
  RSA10047  Poa howellii Joseph P. Tracy 1929-7-4 8619 Humboldt French Camp Ridge 1067 Comment
  UC34126  Poa howellii Joseph Burtt Davy Jun 8 1899-Jun 1 1901 5360 Humboldt Harris Comment
  UCD91113  Poa howellii Don Hagar 1956-5-24 s.n. Humboldt Brush Mountain. 5 to 6 miles southwest of Willow Creek, eastern part of county. Comment
  UC525620  Poa kelloggii Joseph P. Tracy 1926-4-25 7415 Humboldt on Van Duzen River Grizzly Creek; North Coast Ranges 91 Comment
  OBI22137  Poa macrantha Carl B. Wolf 1937-6-18 8904 Humboldt Centerville Beach Comment
  HSC10816  Poa pratensis J. W. Johnson 1961-6-12 1425 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC39179  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1222 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UCD91919  Poa pratensis P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia. By road through red woods off highway. Comment
  HSC32621  Poa secunda subsp. secunda D. E. Anderson 1965-5-22 3728 Humboldt Hunt Ranch, 3-4 mi. N of Bridgeville. Comment
  HSC75473  Poa secunda subsp. secunda J. O. Sawyer 1980-7-18 3620 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UCD91732  Poa secunda subsp. secunda Al Murphy 1947-8-1 s.n. Humboldt Horse Mt. Comment
  UCD92047  Poa secunda subsp. secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 miles W of the Snow Camp. At Beck's Place, Hydesville. (Same place from which Mr. Murphy's (UC Davis) test plots of this species were taken). 1219 Comment
  RSA10114  Poa trivialis Joseph P. Tracy 1926-6-12 7587 Humboldt near Quick at Davison's Ranch. 61 Comment
  RSA152381  Poa trivialis Joseph P. Tracy 1950-6-8 18723 Humboldt Bear River Ridge 610 Comment
  UC1103176  Poa unilateralis J. P. Tracy 1919-4-27 5134 Humboldt Ocean Beach at Samoa Comment
  UC17439  Polygala californica C. C. Marshall 1888-1 Humboldt Eel River Region Comment
  HSC44772  Polygala californica Thomas W. Nelson, Jane P. Nelson 1977-7-4 3585 Humboldt W side of road N from Alder Springs 1494 Comment
  HSC54552  Polygala cornuta Overton, Butler 1979-7-24 9554 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC100599  Polygala cucullata Carl C. Marshall Jun 1887 408 Humboldt Dobbyn's Creek. Comment
  UC1541401  Polygonum amphibium var. emersum H. E. Parks August 1934 5165 Humboldt Big Lagoon Comment
  JEPS50493  Polygonum amphibium var. emersum Joseph P. Tracy 1927-5-14 8026 Humboldt Patterson Ranch Trinity River Valley, Willow Creek (pond) 152 Comment
  HSC31424  Polygonum aviculare R. F. Thorne, P. Everett 1965-8-8 35244 Humboldt N edge of Eureka, E of Hwy 101 5 Comment
  HSC55078  Polygonum douglasii G. L. Clifton, Griswold 1979-7-31 11691 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC55262  Polygonum douglasii Overton, Butler 1979-8-2 12600 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UCD100221  Polygonum douglasii D. C. Hagar 1957-7-25 81 Humboldt Mill Creek cutover, 7.5 miles east-northeast of Hoopa. 1402 Comment
  RSA466318B  Polygonum douglasii Thomas W. Nelson, James Nelson 1976-7-28 3057 Humboldt Growing on meadow along 2E27 just N of its Jct. 1S07 1524 Comment
  UC672963  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1933-8-30 13042 A Humboldt Grouse Mountain 1524 Comment
  UC1735921  Polygonum douglasii subsp. spergulariiforme Dean W. Taylor 1991-8-15 12301 Humboldt ridge 1 mile West of Horse Mountain, 1493 Comment
  UC672982  Polygonum hydropiper Joseph P. Tracy 1927-10-8 8386 Humboldt Boyes Ranch Prairie Creek 91 Comment
  UC177188  Polygonum lapathifolium Joseph P. Tracy 1912-10-20 3988 Humboldt in field by Loleta Pond; Northern Coast Ranges, lower Eel River Valley 15 Comment
  CAS-BOT-BC414718  Polygonum minimum Joseph P. Tracy 1932-7-18 10702 Humboldt Trinity Summit. Head of Brett Hole 1828 Comment
  HSC55062  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11624 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  JEPS50637  Polygonum persicaria Lincoln Constance 1934-6-12 861 Humboldt Bull Cr. road and N. bank of river; South Fork Eel River, Bull Creek Region Comment
  HSC54512  Polygonum spergulariiforme Overton, Butler 1979-7-23 9426 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  CAS-BOT-BC421005  Polygonum spergulariiforme Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  SEINET3404070 Image available Polygonum spergulariiforme Joseph P. Tracy 1947-7-9 17835 Humboldt Horse Mountain, Jeffrey Pine Comment
  HSC33651  Polypodium californicum Margaret Weatherwax 1975-6-26 7 Humboldt Road from Korbel to Maple Creek, 2 mi. SW of Korbel Comment
  CAS-BOT-BC76840  Polypodium glycyrrhiza Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC76839  Polypodium glycyrrhiza M. S. Taylor; L. Ahart; J. Jokerst 1982-1-17 5215 Humboldt Vicinity of mouth of Flag Canyon. On top of North Table Mt., ca. 8 mi. N of Oroville. 373 Comment
  RSA136736  Polypodium glycyrrhiza I. L. Wiggins 1957-6-20 14134 Humboldt East side of highway, Trinidad Comment
  UC1746694  Polypodium glycyrrhiza R. M. and A. F. Tryon Jun 1958 5560 Humboldt NW of Weott; S fork of the Eel River Comment
  UC370620  Polypodium glycyrrhiza H. E. Parks 1925-6-17 3233 Humboldt Lawrence Creek Comment
  UC503066  Polypodium glycyrrhiza Joseph P. Tracy 1931-3-26 9294 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  UCSB29329  Polypodium glycyrrhiza Phelps, M. 1972-3-22 Humboldt 1000 yds. east of Whitehom turnoff, along Shelter Cove Rd. 304 Comment
  HSC10825  Polypogon interruptus J. P. Tracy 1927-7-16 8261 Humboldt Eureka 0 Comment
  HSC12125  Polypogon interruptus A. S. Hitchcock 1915-7-23 839 Humboldt Eureka Comment
  CAS-BOT-BC233212  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake 15 Comment
  UC552696  Polypogon maritimus Joseph P. Tracy 1934-7-9 13351 Humboldt Dobbyn Creek; Northern Coast Ranges, Dobbyn Creek 152 Comment
  HSC10847  Polypogon monspeliensis R. H. Berg 1963-4-30 61 Humboldt Junction of Samoa Road and Hwy. 101, Arcata. Comment
  HSC38498  Polypogon monspeliensis R. Sutherland 1976-11-9 1 Humboldt Redwood Creek, Wittemore Grove. 82 Comment
  SEINET11681498  Polypogon monspeliensis H. P. Chandler 1901-1 1431 Humboldt Klamath River, North Coast Ranges 335 Comment
  JEPS24330  Polystichum californicum W. L. Jepson 1922-9-10 9460 Humboldt Garberville Comment
  HSC70749  Polystichum imbricans R. York 1980-5-17 534 Humboldt Near Le Perron Peak 1066 Comment
  HSC98734  Polystichum imbricans subsp. imbricans Cara Witte 2007-7-25 583 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1270 Comment
  HSC89413  Polystichum munitum P. A. Daly 1986-3-12 73 Humboldt Trinidad Head, along trail 61 Comment
  JEPS296  Polystichum munitum W. L. Jepson 1932-7-26 16406 Humboldt Bull Creek Comment
  RSA698536  Polystichum munitum J. R. Bruff 1937-8-17 922 Humboldt Richardson Grove. Comment
  CAS-BOT-BC76662  Polystichum munitum Ira L. Wiggins 1932-6-18 5871 Humboldt On hillside at mouth of Little River. Comment
  HSC79146  Polystichum munitum C. J. Thomas 1984-9-25 117 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  RSA66879  Polystichum munitum P. A. Munz 1951-7-15 16551 Humboldt Racoon Creek. 305 Comment
  SEINET6840758  Polystichum munitum R. A. Evers 1962-9-1 75334 Humboldt Patrick Point State Park. Comment
  UC1440061  Polystichum munitum Danin & H. G. Baker 1960-8-14 626 Humboldt n slope Eel Rock Rd. Eel Rock Rd. Comment
  POM343769  Potamogeton pusillus S. K. Harris 1938-9-12 808 Humboldt Shallow backwater of Eel River, near Fernbridge Comment
  CAS-BOT-BC143080  Potentilla anserina subsp. pacifica Doris K. Kildale 1926-6-25 2178 Humboldt Big Lagoon Comment
  HSC38918  Potentilla anserina subsp. pacifica Linda M. Barker 1976-6-1 1556 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC585622  Potentilla anserina subsp. pacifica Joseph P. Tracy 1934-7-30 13509 Humboldt along coast in front South End of Stone Lagoon (Dry Lagoon); , in front of South End Stone Lagoon 3 Comment
  UCD113696  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  HSC97614  Potentilla glandulosa subsp. glandulosa Cara Witte 2007-5-31 156 Humboldt Along National Forest Route 1. Near Kinsey Ridge. 1.25 miles north of intersection with 4N09. 1308 Comment
  RSA46858  Potentilla gracilis Doris K. Kildale 1927-7-10 3721 Humboldt Gans Prairie, Bald Hills. Comment
  CAS-BOT-BC531751  Potentilla gracilis var. fastigiata F. P. Cronemiller 1924-5-20 882 Humboldt Potato Patch, Snow Mt Range 914 Comment
  HSC44447  Prosartes hookeri Brad Klipfel 1975-5-30 658 Humboldt N of Horse Mtn. Comment
  HSC15463  Prosartes hookeri D. E. Anderson 1965-5-1 3576 Humboldt On Bluff Creek Rd. 4-5 mi. W of junction with Hwy. 96 Comment
  SBBG58724  Prosartes smithii R. Hartwell 1938-8-3 101 Humboldt near Garberville Comment
  HSC76520  Prunella vulgaris John Demarinis 1981-7-21 878 Humboldt Near Table Bluff 38 Comment
  UCD20382  Prunella vulgaris K. Esau 1934-5-6 s.n. Humboldt Fort Seward. Comment
  UC1174866  Prunella vulgaris var. lanceolata P. C. Everett and E. K. Balls 1959-10-25 23961 Humboldt U.S. Hwy 299 to Arcata 14 mi w Willow Creek; w of Willow Creek 502 Comment
  UC1402049  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-21 636 -7 Humboldt Comment
  CAS-BOT-BC159974  Prunus emarginata Mrs. H. C. Cantelow 1939-6-8 s.n. Humboldt South Fork Mts. Blake Lookout Road, 7.2 miles from Junction Alton. Red Bluff Highway Comment
  CAS-BOT-BC159979  Prunus emarginata H. E. McMinn 1922-8-5 354 Humboldt Along Van [Dusen] Duzen River Comment
  CAS-BOT-BC159984  Prunus emarginata Doris Kildale Gillespie 1931-6-7 10593 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UC12753  Prunus emarginata Harley P. Chandler June, 1901 1273 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1066 Comment
  CAS-BOT-BC154737  Prunus virginiana var. demissa H. E. McMinn 1922-8-5 356 Humboldt Along Van [Dusen] Duzen River Comment
  CAS-BOT-BC357600  Pseudognaphalium stramineum Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  HSC34943  Pseudotsuga menziesii var. menziesii R. M. Sullivan 1975-4-9 2 Humboldt 3 mi N of Trinidad on Hwy. 101 24 Comment
  UC902028  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1949-10-8 18584 Humboldt Trinity River Valley at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC32927  Psilocarphus oregonus Thomas W. Nelson, James Nelson 1973-5-28 970 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC32362  Psilocarphus tenellus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5710 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC1223165  Psilocarphus tenellus Joseph P. Tracy 1948-6-13 18056 Humboldt 3 mi w Harris 762 Comment
  CAS-BOT-BC460606  Pyrola aphylla Doris K. Kildale 1925-6-27 893 Humboldt Bear Buttes Comment
  HSC69767  Pyrola aphylla Thomas W. Nelson, Jane Nelson 1977-9-3 3715 Humboldt J.E. Losey property above junction of Kneeland-Maple Creek Rd. 671 Comment
  JEPS48537  Pyrola crypta Hilda W. Grinnell 1932-7-19 29 Humboldt McKay Camp, So. Fork Mt. Comment
  UC1326244  Pyrola picta Milo S. Baker 1947-8-10 11908 Humboldt near end of Forest Rd. from Hoopa toward Trinity Summit 1371 Comment
  UCD117815  Pyrola picta D. C. Hagar 1957-6-17 L 8 Humboldt Happy Camp Mountain, 5 miles northeast of Salyer. 1280 Comment
  HSC100630  Pyrus rivularis Carl C. Marshall Aug 1886 252 Humboldt Near streams. Comment
  HSC70748  Quercus chrysolepis R. York 1980-5-17 535 Humboldt Near Le Perron Peak 1066 Comment
  UCD45382  Quercus chrysolepis Lincoln Constance 1934-6-15 885 Humboldt Summit of Grasshopper Peak; el. C. 3200 ft. Bull Creek Region. South Fork Eel River, Humboldt County, California. 1158 Comment
  UC1193248  Quercus garryana K. Cuff 1950-10-10 127 Humboldt 1.5 mi n Honeydew 152 Comment
  HSC102091  Quercus garryana var. breweri M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 994 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC98723  Quercus kelloggii Cara Witte 2008-7-11 885 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  HSC102199  Quercus sadleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1113 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  HSC102567  Quercus sadleriana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1554 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC104537  Quercus vacciniifolia Doris K. Kildale 1928-10-7 6747 Humboldt Willow Creek Canyon 7 miles from mouth Comment
  HSC55279  Quercus vacciniifolia Overton, Butler 1979-8-2 12695 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SBBG111333  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt House Mtn at jct of rd to Grouse Mtn and rd to Horse Mtn Mine 1463 Comment
  UC1196538  Quercus vacciniifolia Joseph P. Tracy 1934-6-27 11044 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC902026  Quercus vacciniifolia Joseph P. Tracy 1949-8-26 18526 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UCR32169  Quercus vacciniifolia David J. Keil 1983-7-2 17324 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  CAS-BOT-BC104664  Quercus wislizeni J. G. Lemmon 1904-1-1 s.n. Humboldt Eel River Comment
  CAS-BOT-BC539321  Quercus wislizeni Lois Weeth; Kerry Heise; John M. Tucker 2003-10-21 s.n. Humboldt 49.5 mi from Garberville along Alderpoint Rd near the jct with Hwy 36; stop #6 215 Comment
  UC275513  Quercus wislizeni Joseph P. Tracy 1923-10-14 6576 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  CHSC24867  Ranunculus aquatilis var. hispidulus A. D. Launer 1976-4-10 1 Humboldt In small pond, ca. .5 mi e of Church St. in Blocksburg. 487 Comment
  UC594250  Ranunculus aquatilis var. hispidulus C. C. and S. K. Harris 1936-6-12 3363 Humboldt near Bridgeville; Chalk Mountain Comment
  JEPS5882  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1935-5-25 13882 Humboldt Dobbyn Creek; bed of dried-up pond 152 Comment
  UC118293  Ranunculus aquatilis var. hispidulus W. W. Price 1890-6-30 Humboldt Jarnigans Comment
  JEPS55018  Ranunculus flammula Milo S. Baker 1923-7-15 9 Humboldt near Hayes and M. Streets; Eureka swamps Comment
  POM269618  Ranunculus flammula var. ovalis Joseph P. Tracy 1934-7-30 13499 Humboldt Dry Lagoon (Along coast in front of South End of Stone Lagoon.) 3 Comment
  UC162860  Ranunculus occidentalis J. P. Tracy 1900-5-30 826 Humboldt Immediate vicinity of Eureka 0 Comment
  BLMAR116  Ranunculus occidentalis Jennifer Anthony-Wheeler 1995-3-15 116 Humboldt King range, growing throughout riverside at honeydew campground 121 Comment
  HSC18174  Ranunculus pusillus J. P. Tracy 1903-5-24 1912 Humboldt Alder Point on Eel River 152 Comment
  CDA3483  Ranunculus repens T. C. Fuller 1966-5-24 14709 Humboldt Arcata Bottoms, 0.75 mile west of Highway 101, 2 miles north of Arcata. 0 Comment
  HSC100902  Ranunculus repens Carl C. Marshall 167 Humboldt No data. Comment
  HSC99489  Ranunculus repens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 148 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
  HSC56011  Ranunculus uncinatus Gilbert Muth 1979-7-31 11494 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  UC13973  Ranunculus uncinatus Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC183766  Ranunculus uncinatus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3620 Humboldt near Hydesville; Northern Coast Region 60 Comment
  BLMAR510  Ranunculus uncinatus Jennifer Anthony-Wheeler 2009-5-9 510 Humboldt Headwaters Forest Reserve, HRC U08 road; spur to Elk River Comment
  HSC31570  Ranunculus uncinatus var. parviflorus Glenn McGourty 1974-5-11 40 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC40639  Ranunculus uncinatus var. parviflorus J. P. Smith 1973-5-26 6858 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC48381  Raphanus raphanistrum Mark Flippo 1978-4-26 27 Humboldt McKinleyville, Bella Vista Rd. Comment
  UC1541476  Rhamnus purshiana Harold E. Parks May 1935 5541 Humboldt Spruce Cove Trinidad Comment
  UC902201  Rhamnus purshiana Joseph P. Tracy 1948-8-15 18152 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  JEPS42034  Rhamnus rubra Lincoln Constance 1934-6-4 814 Humboldt Look Prairie, and Bull Creek road to Dyerville South Fork Eel River, Bull Creek Region Comment
  HSC44734  Rhododendron columbianum Maralyn O'Meara 1971-10-25 53 Humboldt S side of Big Lagoon Comment
  HSC91899  Rhododendron columbianum Susan H. Bicknell 1987-9-1 Humboldt Patrick's Point State Park, Penn Creek campground Comment
  CAS-BOT-BC56611  Rhododendron macrophyllum Doris Kildale 1931-5-16 10694 Humboldt Camp 20, LBSJ Trinidad Comment
  HSC33060  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Old Kneeland Rd. Comment
  HSC74570  Rhododendron occidentale var. paludosum M. A. Baker 1980-5-17 1238 Humboldt Near Le Perron Peak 1066 Comment
  HSC7892  Rhododendron occidentale var. paludosum Francis Winter 1960-5-6 Humboldt Across from Azalea State Park Entrance Comment
  HSC53831  Ribes binominatum Griswold, Butler 1979-7-10 6279 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC70894  Ribes inerme var. klamathense J. M. DiTomaso 1981-5-15 2000 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  UC70556  Ribes inerme var. klamathense J. Burtt Davy 1899-6-26 5867 Humboldt Hoopa Valley North Coast Ranges Comment
  UC1198907  Ribes laxiflorum J. P. Tracy 1901-6-10 1122 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC173361  Ribes lobbii Lincoln Constance; Reed C. Rollins 1942-5-11 2864 Humboldt Near summit 8 miles east of Blue Lake Comment
  HSC70324  Ribes lobbii M. A. Baker 1980-6-8 1879 Humboldt Near Buck Flat. 1554 Comment
  UC492202  Ribes lobbii Joseph P. Tracy Jul 16 1930-Jul 19 1930 8907 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC57640  Ribes marshallii G. L. Clifton, Griswold 1979-7-25 10804 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  LA205539  Ribes marshallii Joseph P. Tracy; 1932-7-15 10592 Humboldt Klamath Mountains, Trinity Summit. ridges E of Corral Prairie 1828 Comment
  CSUSB1881  Ribes menziesii Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  HSC20314  Ribes menziesii E. W. Styskel 1963-3-3 3 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UC1541331  Ribes menziesii Harold E. Parks April 1933 4402 Humboldt vicinity Trinidad (type locality) Comment
  UC183577  Ribes menziesii Joseph P. Tracy 1912-3-31 3568 Humboldt Blue Lake Northern Coast Ranges 30 Comment
  CAS-BOT-BC212653  Ribes nevadense W. R. Dudley 1901-8-25 s.n. Humboldt Near the 14 mile post, Salmon Creek, Salmon Mountains Comment
  HSC70757  Ribes roezlii R. York 1980-5-17 526 Humboldt Near Le Perron Peak 792 Comment
  JEPS79967  Ribes roezlii var. cruentum Joseph P. Tracy 1930-7-25 8885 Humboldt Trinity River Valley at Willow Creek Trinity River Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  UC1198943  Ribes roezlii var. cruentum Joseph P. Tracy 1927-3-27 7871 Humboldt East Fork of Willow Creek Northern Coast Ranges, Willow Creek Canyon 457 Comment
  CDA25579  Ribes sanguineum T. C. Fuller 1961-3-21 5855 Humboldt Bank of Mad River, 1 mile south of Korbel. 0 Comment
  UC1222367 Image available Ribes sanguineum Joseph P. Tracy 1950-5-7 18649 Humboldt head South Yager River Comment
  UC902091  Ribes sanguineum Joseph P. Tracy 1948-9-5 18178 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC211976  Ribes sanguineum Duart V. Brown 1947-3-30 20 Humboldt Near Tectah Creek, Klamath River Comment
  HSC95674  Ribes sanguineum var. glutinosum Kevin Thomas 2004-3-18 4 Humboldt Near Clam Beach exit of Hwy. 101 N, along old Hwy. 101, at end of Little River Rd. Comment
  UC1198909  Ribes sanguineum var. glutinosum Joseph P. Tracy 1948-9-26 18227 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  UC921844  Ribes sanguineum var. glutinosum C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  HSC71157  Ribes sanguineum var. sanguineum Thomas W. Nelson 1977-6-15 3426 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  CAS-BOT-BC173992  Ribes viscosissimum J. H. Thomas 1949-6-13 913 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  UC492214  Ribes viscosissimum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8908 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC26449  Romanzoffia tracyi T. O. Osborne 1970-4-8 9 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  UC1199222  Rorippa nasturtium-aquaticum Joseph P. Tracy 1927-7-17 8280 Humboldt on lower western foothills Chaparral Mountain (Three Cabins); Northern Coast Ranges, western foothills Chaparral Mountain 457 Comment
  CAS-BOT-BC146528  Rosa gymnocarpa M. S. Jussel 1931-5-2 67 Humboldt 20 miles north of Garberville Comment
  HSC70703  Rosa gymnocarpa Gail Newton 1980-7-14 1547 Humboldt Near Deadman Ridge 362 Comment
  HSC99635  Rosa gymnocarpa T. Jimerson, J. Pageau 1979-6-13 543 Humboldt Near Slate Creek Butte, close to the town of Orleans 549 Comment
  UC1199039  Rosa gymnocarpa Joseph P. Tracy 1947-8-24 17888 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC527562  Rosa gymnocarpa C. B. Wolf 1931-8-30 2376 Humboldt 11 mi above Blue Lake (on Lord Ellis Rd to Willow Creek) 304 Comment
  CHSC31292  Rosa pinetorum Mark Stopher 1980-7-11 115 Humboldt Along Elk River near Hwy 101 bridge. Comment
  UC154494  Rosa pisocarpa Harley P. Chandler June 1901 1544 Humboldt Klamath River North Coast Ranges 457 Comment
  CAS-BOT-BC146877  Rosa rubiginosa Doris K. Kildale 1926-8-31 2608 Humboldt Union Mattole, Mattole River Valley Comment
  CAS-BOT-BC146882  Rosa rubiginosa Alice Eastwood 1921-7-21 10650 Humboldt Carlotta Comment
  UCR275123  Rubus armeniacus Charity A. Hartshorn 2016-4-24 15 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  RSA46847  Rubus leucodermis Doris K. Kildale 1927-7-3 3662 Humboldt Willow Creek Flat. Comment
  CAS-BOT-BC147238  Rubus parviflorus Kenneth Clark 1980-3-23 535 Humboldt On middle terrace of north fork Dead Man's Gulch 76 Comment
  HSC55617  Rubus parviflorus Overton, Butler 1979-7-23 9514 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC56189  Rubus parviflorus Gilbert Muth 1979-8-1 12126 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  NY1043364  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  UCD20671  Rubus parviflorus A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute, near Redwood Park. Comment
  SEINET5265376  Rubus parviflorus Unknown 1938-8-6 15397 Humboldt Eureka Comment
  CAS-BOT-BC156720  Rubus spectabilis W. R. Dudley 1899-6-21 s.n. Humboldt Engelwood Brook - Eel River Comment
  HSC19687  Rubus spectabilis R. E. Hafenfeld 1965-5-9 6 Humboldt 1/4 mi. from County Rd. and Gold Bluff Beach Rd. jct. Comment
  HSC19690  Rubus spectabilis K. P. St. John 1965-4-3 8 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  UC902133  Rubus spectabilis Joseph P. Tracy 1948-5-15 17979 Humboldt along Trinity Highway (Willow Creek Canyon, East Fork Willow Creek); Willow Creek Canyon, East Fork Willow Creek 457 Comment
  UCSB31471  Rubus spectabilis Clark, Sharon 1978-3-29 Humboldt 119.5 miles on Route 101, 2 miles south of Orick 91 Comment
  UCD17616  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 048 Humboldt California. Humboldt County: 12.2 miles north of Ettersburg on road to Honeydew. Comment
  UCD17625  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 039 Humboldt California. Humboldt County: on left side of U.S. 101 going north, about 0.5 miles north of Rock Creek Crossing. Comment
  SEINET5710897  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC98533  Rumex acetosella Cara Witte 2008-8-6 1015 Humboldt Board Camp Mountain. 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  UCD100972  Rumex acetosella Collector unknown Date unknown s.n. Humboldt location unknown. Comment
  UCD101126  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  JEPS39867  Rumex obtusifolius Milo S. Baker 1923-8-4 181 Humboldt s of Stone Lagoon Comment
  UC672926  Rumex occidentalis Joseph P. Tracy 1932-7-20 10730 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UCD138323  Ruppia maritima Malcolm A. Nobs; S. Galen Smith 1949-8-3 1181 Humboldt Near mouth of the Elk River on Highway 101, ca. 4 miles south of Eureka. Comment
  HSC49825  Salicornia depressa R. York 1979-5-18 299 Humboldt From area around Humboldt Bay. Comment
  JEPS93952  Salicornia virginica Vernon H. Oswald 1998-9-2 9562 Humboldt Humboldt Bay National Wildlife Refuge s of Eureka (Hookton Slough Trail on the levee along s side of Hookton Slough); Humboldt Bay National Wildlife Refuge, Hookton Slough 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
  UC55430  Salicornia virginica J. P. Tracy 1901-8-7 1255 Humboldt Samoa Humboldt Bay 0 Comment
  CHSC79815  Salix alba Gordon Leppig; Sylvia Leppig, Kai Leppig 2000-4-16 1297 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, West bank of Hauser Marsh. UTM zone 10, N4525 E407. 1 Comment
  CAS-BOT-BC129896  Salix bonplandiana Joseph P. Tracy 1932-4-23 9835 Humboldt South Fork of Eel River, between Miranda and Redway - North Coast Ranges 91 Comment
  UC1173607  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14269 Humboldt meadows at Waterdog Lakes; Trinity Summit 1828 Comment
  CAS-BOT-BC103813  Salix exigua John H. Thomas 1966-3-19 11483 Humboldt Near Westhaven Drive and highway 101, Trinidad 60 Comment
  UC1196605  Salix exigua var. hindsiana Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10096 Humboldt Trinity R. opposite Willow Creek; North Coast Ranges 152 Comment
  UC512022  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1336 Humboldt 1 mi below bridge on Trinity Hwy. (on ...bank above Trinity R.) 152 Comment
  CAS-BOT-BC104094  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104099  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107723  Salix hookeriana Alice Eastwood 1923-8-17 12320 Humboldt Samoa Comment
  CAS-BOT-BC107732  Salix hookeriana Harold E. Parks 1931-3-26 905 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107741  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Sand dunes, near Samoa 6 Comment
  CAS-BOT-BC107745  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1216 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  CAS-BOT-BC107764  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1214 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107769  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1222 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107774  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-12 1246 Humboldt Gravelly floodplain of Van Dezen River at Blue Slide 91 Comment
  HSC90399  Salix hookeriana Jean Hanson 1980-3-8 9 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96357  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS12908  Salix hookeriana Joseph P. Tracy 1927-3-13 7844 Humboldt mouth of Little River; Northern Coast Ranges 6 Comment
  POM219558  Salix hookeriana H. E. Parks 1931-3-24 912 Humboldt Fortuna. Eel River. 10 Comment
  UC1196546  Salix hookeriana Joseph P. Tracy 1926-3-14 7390 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC1196631  Salix hookeriana J. P. Tracy 1904-4-3 2010 Humboldt Immediate vicinity of Eureka 0 Comment
  UC469115  Salix hookeriana Joseph P. Tracy 1931-8-23 9622 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
  UC470430  Salix hookeriana Joseph P. Tracy 1931-5-23 9435 Humboldt near Trinidad Station; Northern Coast Region, vicinity of Trinidad 60 Comment
  UC470443  Salix hookeriana Joseph P. Tracy 1931-9-19 9676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC481350  Salix hookeriana Harold E. Parks 1931-5-12 954 Humboldt Samoa Humboldt Bay Comment
  UC481378  Salix hookeriana Harold E. Parks and J. P. Tracy 1931-3-26 904 Humboldt on Van Duzen River Alton; Van Duzen River 15 Comment
  UC481379  Salix hookeriana Harold E. Parks and J. P. Tracy 1931-3-26 905 Humboldt on Van Duzen R. Alton; Van Duzen R., Alton 15 Comment
  UC504055  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 4 Humboldt around Eureka Comment
  UC506401  Salix hookeriana Joseph P. Tracy 1933-4-9 10931 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (below Blue Slide bridge on open gravel bar) 91 Comment
  UC512086  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1221 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC512105  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1208 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC490516  Salix laevigata Joseph P. Tracy 1932-7-31 10290 Humboldt along Eel River at mouth of Larrabee Creek; North Coast Ranges, Eel River 30 Comment
  UC490518  Salix laevigata Joseph P. Tracy 1932-5-1 9880 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UC490519  Salix laevigata Joseph P. Tracy 1932-5-1 9879 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  CAS-BOT-BC125216  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1120 Humboldt Cranell 3 Comment
  CAS-BOT-BC107106  Salix lasiolepis Joseph P. Tracy 1933-5-14 12184 Humboldt Berry's Mt., on TRinity Highway 762 Comment
  CAS-BOT-BC107597  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11007 Humboldt On Van Duzen River, two miles west of Bridgeville 228 Comment
  CAS-BOT-BC107614  Salix lasiolepis Harold E. Parks 1933-2-26 10912 Humboldt Miranda, south fork of Eel River 121 Comment
  CAS-BOT-BC107619  Salix lasiolepis Doris K. Kildale 1927-3-22 2934 Humboldt Samoa Peninsula Comment
  CAS-BOT-BC107622  Salix lasiolepis Joseph P. Tracy 1933-4-9 10966 Humboldt Bridgeville, along Van Duzen R. 228 Comment
  HSC98772  Salix lasiolepis Cara Witte 2008-7-7 842 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  JEPS14772  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt on Trinity Hwy. Berry's Mt. (e of Redwood Creek); Northern Coast Ranges 762 Comment
  UC212998  Salix lasiolepis Joseph P. Tracy 1919-9-13 5197 Humboldt near Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469427  Salix lasiolepis Joseph P. Tracy 1931-9-7 9628 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469432  Salix lasiolepis Joseph P. Tracy 1931-10-3 9701 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC470408  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC470409  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC504028  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1320 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC504029  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1321 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506386  Salix lasiolepis Joseph P. Tracy 1932-6-19 10248 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  UC506388  Salix lasiolepis Joseph P. Tracy 1932-8-21 10357 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (on lower western foothills of mt.) 457 Comment
  UC512037  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1324 Humboldt w. slope Berry's Mt. (e. of Redwood Creek, on Trinity Hwy.) 762 Comment
  UC526718  Salix lasiolepis Joseph P. Tracy 1934-7-9 13355 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  UC526719  Salix lasiolepis Joseph P. Tracy 1934-4-8 13171 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  CAS-BOT-BC128202  Salix lucida Doris K. Kildale 1927-3-20 2926 Humboldt Stevens Grove - South Fork of Eel River near Miranda Comment
  HSC20035  Salix melanopsis H. E. Parks 1931-5-14 956 Humboldt Little Laribee Ridge, Van Duzen River Comment
  HSC20042  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River, between Alton and Carlotta 15 Comment
  JEPS14786  Salix melanopsis Joseph P. Tracy 1933-5-20 12258 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  SD914  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  UC1196574  Salix melanopsis Joseph P. Tracy 1931-5-16 9615 Humboldt vicinity of Garberville (S. Fork Eel R. at Redway); North Coast Ranges, S. Fork Eel R., Redway 121 Comment
  UC469445  Salix melanopsis Joseph P. Tracy 1931-10-3 9706 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 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
  UC481289 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
  UC490556  Salix melanopsis C. R. Ball, H. E. Parks and Joseph P. Tracy 1932-5-17 10069 Humboldt Redwood Creek at Berrys; North Coast Ranges, Redwood Creek 274 Comment
  UC511988  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
  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
  UC519367  Salix melanopsis Joseph P. Tracy 1933-7-20 12805 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  CAS-BOT-BC129175  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC41937  Salix scouleriana Ed Cope 1977-4-23 24 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  POM209564  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Grove (Parks Ranch). Trinidad. Comment
  POM280933  Salix scouleriana Lyman D. Benson 1929-7-14 1810 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  CAS-BOT-BC128951  Salix sitchensis L. R. Abrams 1916-7-11 6047 Humboldt In river gravel, mouth of Grizzly Creek on Van Duzen River Comment
  CAS-BOT-BC128955  Salix sitchensis Harold E. Parks 1931-3-26 908 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC128984  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  CAS-BOT-BC128989  Salix sitchensis Joseph P. Tracy 1934-3-25 13168 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC128993  Salix sitchensis Doris K. Kildale 1929-2-28 6948 Humboldt Arcata - hills back of State Teachers College Comment
  HSC37880  Salix sitchensis Thomas W. Nelson 1976-3-22 2282 Humboldt Cooper's Gulch near Franklin Elementary School Comment
  JEPS12955  Salix sitchensis Joseph P. Tracy 1931-9-19 9683 Humboldt Van Duzen River Alton; Northern Coast Region, Van Duzen River 30 Comment
  UC1199054  Salix sitchensis Joseph P. Tracy 1938-7-31 16088 Humboldt head of Willow Creek (along Trinity Hwy.); Willow Creek Canyon, Willow Creek 762 Comment
  UC212996  Salix sitchensis Joseph P. Tracy 1919-9-25 5300 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC492342  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC1225921  Salix tracyi Joseph P. Tracy 1942-4-26 17071 Humboldt near Blue Lake, along Mad River 15 Comment
  UC585975  Salpichroa origanifolia Joseph P. Tracy 1933-8-22 12972 Humboldt Eureka; Northern Coast Ranges 0 Comment
  RSA1255  Sambucus callicarpa B. D. Stark 1929-7-24 1388 Humboldt 2 miles north of Arcata 30 Comment
  JEPS12742  Sambucus mexicana Joseph P. Tracy 1930-7-19 9088 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC34632  Sambucus racemosa var. racemosa R. M. Sullivan 1975-4-9 1 Humboldt 2 mi. S of Trinidad on old Hwy. 101 Comment
  HSC47490  Sambucus racemosa var. racemosa Sheila Logan 1978-4-9 13 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  UCSB15630  Sambucus racemosa var. racemosa 1962-6-8 Humboldt Along U.S. Highway 101, 5 miles south of Orick 30 Comment
  HSC12342  Sanguisorba minor Steve Dorei 1970-10-20 112 Humboldt Along Plaza Ave. SW of Laurel Dr. 46 Comment
  UC1022532  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 3 X452 Humboldt 4.4 mi e of Bridgeville (below road) Comment
  UC642319  Sanicula laciniata Joseph P. Tracy 1938-3-27 15701 Humboldt along South Fork of Eel River, Miranda South Fork Eel River; , Miranda 121 Comment
  HSC81587  Sanicula tracyi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5248 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC99066  Sanicula tuberosa C. Witte 2007-5-18 40 Humboldt Grouse Mountain Lookout. 1644 Comment
  UC642318  Sanicula tuberosa Joseph P. Tracy 1930-7-17 9011 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  RSA759802  Saxifraga mertensiana Barbara Ertter, Thomas J. Delendick 1987-5-16 6936 Humboldt 3 miles E of Berry Summit on Hwy 299, 20 airmiles E of Arcata, near large volcanic rock on S side of road above Willow Creek 800 Comment
  UC774703  Saxifraga mertensiana Carl B. Wolf 1941-3-2 4068 Humboldt 2 mi s of Honeydew (along Honeydew Creek); North Coast Range, Honeydew Creek 152 Comment
  HSC102002  Saxifraga oregana M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 903 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC7442  Schoenoplectus americanus R. L. Jarvis 1962-4-29 37 Humboldt Stone Lagoon, 3 mi. S of Orick 0 Comment
  UC1100779  Scirpus cernuus Malcolm A. Nobs, S. Galen Smith 1949-8-11 1347 Humboldt marshes on eastern side Big Lagoon; marshes on eastern side Big Lagoon 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
  JEPS62101  Scoliopus bigelovii Lincoln Constance 1934-6-8 836 Humboldt Cow Creek fire-trail from Bull Creek rd. n. over the divide into the headwaters of Bear Creek; Bull Creek Region, S. Fork Eel R., Cow Creek fire-trail 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
  HSC21127  Scrophularia californica R. I. Bonn 1965-5-9 44 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  RSA425152  Scrophularia californica Bonnie C. Templeton 1964-6-13 10088 Humboldt Trinidad Head, near Lighthouse Point. Comment
  UC1239707  Scutellaria antirrhinoides Joseph P. Tracy 1930-7-23 9123 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1432 Comment
  RSA82291  Scutellaria antirrhinoides F. W. Peirson 1932-7-7 10259 Humboldt Willow Creek. A few miles above town of that name. Comment
  HSC35354  Scutellaria siphocampyloides A. M. Montalvo, J. D. Ackerman 1975-6-22 483 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC58050  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-8-1 11911 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC65853  Sedum radiatum Gail Newton 1980-6-28 736 Humboldt Near Mad River Butte. 1536 Comment
  RSA0074768  Sedum spathulifolium Lyman Benson 1929-7-19 1858 Humboldt Mouth of Matole River. Comment
  RSA0081473  Sedum spathulifolium C. B. Wolf 1927-8-28 1163 Humboldt 8 miles above Weitchpec, Trinity River. Comment
  HSC63138  Sedum spathulifolium var. spathulifolium M. A. Baker 1979-6-28 947 Humboldt NE side near summit of Packsaddle Ridge just N of the most E tip of the N fork of Mill Creek Comment
  HSC6479  Sedum spathulifolium var. spathulifolium Francis Winter 1960-5-7 Humboldt 4 mi. S of Hoopa Indian Reservation, on Hoopa-Willow Creek Rd. 152 Comment
  HSC95768  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway 49 Comment
  HSC6121  Senecio integerrimus var. major D. E. Anderson 1965-5-22 3727 Humboldt Hunt Ranch, 3-4 mi. N of Bridgeville Comment
  UC581708  Senecio integerrimus var. major Joseph P. Tracy 1935-7-28 14326 Humboldt Head of Devils Hold Trinity Summit 1828 Comment
  CAS-BOT-BC364013  Senecio integerrimus var. major Thomas W. Nelson; Jane P. Nelson 1980-5-25 5250 Humboldt North Coast Ranges. Along road from Dinsmore to Anderson Crossing. McKeown Ranch road ca 100 m north of junction of road to Hindley Cabin 822 Comment
  JEPS37228  Senecio integerrimus var. major W. L. Jepson 1902-6-19 1888 Humboldt Ft. Seward Ranch 1219 Comment
  HSC58076  Senecio triangularis G. L. Clifton, Griswold 1979-8-1 11977 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC581709  Senecio triangularis Joseph P. Tracy 1930-7-16 8934 Humboldt in wet meadow at McKay Camp (South Fork Mountain); , McKay Camp 1676 Comment
  UC1223185  Senecio vulgaris Joseph P. Tracy 1943-11-28 17454 Humboldt Eel River Bar at mouth Van Duzen (near Alton); Eel River Bar at mouth of Van Duzen Comment
  CHSC55650  Sequoia sempervirens Dennis W. Morris 1991-4-24 20 Humboldt 2 mi e of Humboldt State Univ. in Redwood Park. Coastal mountains. 115 Comment
  HSC12953  Sequoia sempervirens Steve Dorei 1970-10-8 10 Humboldt HSU campus, near corner of Union St. and st. leading to gyms Comment
  SBBG56416  Sequoia sempervirens D. B. Rogers 1937-10-1 Humboldt Scotia, 37 mi S of Eureka Comment
  SD33  Sequoia sempervirens Charlotte M. Wilder 1929-1 Humboldt Carlotta Comment
  SDSU292  Sequoia sempervirens Wayne A. Bemis 1963-11-29 245 Humboldt 1289 D st Arcata. Empire series Sandstone, West slope. Ocean fog belt of North Coast. 55 Comment
  UC1222350  Sequoia sempervirens Joseph P. Tracy 1950-12-18 19387 Humboldt Parks's Place Trinidad, Parks' Place 3 Comment
  UC64433  Sequoia sempervirens H. M. Hall 1899-10-1 Humboldt Eel River Comment
  CAS-BOT-BC364784  Sericocarpus oregonensis subsp. oregonensis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC202712  Sericocarpus oregonensis subsp. oregonensis Chesnut and Drew 1888-7-24 Humboldt Hy-Am-Pon Comment
  CHSC69832  Sherardia arvensis W. L. Jepson 1934-5-7 Humboldt Buckey Prairie, Bull Creek. Comment
  UC1198397  Sidalcea diploscypha Joseph P. Tracy 1942-6-15 17166 Humboldt 5 mi n Garberville; n of Garberville 152 Comment
  RSA33405  Sidalcea malachroides Doris K. Kildale 1927-7-2 s.n. Humboldt Lord (?) Ellis Road, near Korbel Comment
  UC1197974  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1935-6-23 13978 Humboldt French Camp Ridge 1066 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
  HSC104338  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 9 Humboldt McKinleyville; Dow's Prairie, near Arcata Airport 61 Comment
  HSC104351  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 2005-7-7 13 Humboldt Kneeland 854 Comment
  HSC74227  Sidalcea oregana subsp. spicata M. A. Baker 1980-7-22 3089 Humboldt Near Grogan Hole. 1676 Comment
  UC465673  Silene californica Mrs. M. H. Manning 1900-1 Humboldt Hoopa Valley Comment
  CAS-BOT-BC387079  Silene gallica Doris K. Kildale 1926-5-16 1844 Humboldt Lindsey Creek in Lower Mad River Comment
  HSC79418  Silene gallica Kenneth Clark 1980-5-10 637 Humboldt W slopes above Dead Man's Gulch 122 Comment
  SEINET11944375  Silene hookeri J. P. Tracy 1950-1 18880 Humboldt Burr Valley Road, on NW slope of Buck Mountain Comment
  POM264849  Silene hookeri subsp. bolanderi Lincoln Constance, A. A. Beetle, Joseph P. Tracy 1940-5-17 2612 Humboldt Edge of Quercus Garryana grove, rocky knolls on N slope. McClellan Mtn, near Eureka 823 Comment
  CAS-BOT-BC181248  Silene hookeri subsp. hookeri Dean William Taylor 1971-5-12 1064 Humboldt At the junction of the Trinity and New Rivers 304 Comment
  HSC45314  Silene hookeri subsp. hookeri R. York 1978-5-11 168 Humboldt Along Ishi Pishi Rd. 2 mi. S of Somes Bar and 5 mi. N of Orleans 610 Comment
  HSC4164  Silene laciniata subsp. californica D. E. Anderson 1965-5-15 3709 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC57102  Silene laciniata subsp. californica Overton, Butler 1979-7-25 9834 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  RSA70587  Sisyrinchium californicum Frank W. Peirson 1923-7-11 3693 Humboldt 7 miles N of Arcata. Comment
  HSC62981  Sisyrinchium californicum David Wheeler 1979-5-22 129 Humboldt Samoa, intersection of Samoa Blvd. and the railroad tracks near Arcata Redwood Co. Comment
  UC1197804  Smilacina racemosa Joseph P. Tracy 1936-8-7 15106 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UCR45836  Smilacina stellata Barry Silver 1986-4-23 537 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  CAS-BOT-BC83504  Solanum lycopersicum Henry M. Pollard 1948-7-21 s.n. Humboldt Orleans Comment
  CDA41195  Solanum parishii J. Breton & A. Livingtston 2005-6-15 12 Humboldt Northeast of Grouse Mountain. Comment
  JEPS11997  Solanum umbelliferum Joseph P. Tracy 1937-7-24 15528 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  UC154013  Solanum umbelliferum Joseph P. Tracy 1907-8-20 2601 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  HSC103077  Solanum xanti Sydney Carothers 2014-6-11 2 Humboldt Six Rivers National Forest, Lassics Botanical Area; south face Mt. Lassic, along trail to summit 1772 Comment
  RSA167400  Solidago canadensis subsp. elongata Joseph P. Tracy 1948-9-12 18210 Humboldt Trinity Summit, at head of meadow at Box Camp. 1463 Comment
  CAS-BOT-BC365444  Solidago elongata L. R. Abrams 1927-9-1 12064 Humboldt Stone Lagoon Comment
  UC165212  Solidago elongata Joseph P. Tracy 1901-8-2 1249 Humboldt near Hydesville; Northern Coast Region 60 Comment
  BLMAR663  Solidago velutina subsp. californica Jennifer Wheeler 2012-7-12 663 Humboldt King range, Strawberry rock 253 Comment
  UC1199288  Soliva sessilis Joseph P. Tracy 1939-4-18 16217 Humboldt Garberville 152 Comment
  UC582437  Sonchus asper Joseph P. Tracy 1936-8-24 15177 Humboldt 6 mi se Arcata (Fickle Hill); Fickle Hill 609 Comment
  HSC67888  Sonchus oleraceus J. P. Smith 1973-5-26 6862 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC89465  Sonchus oleraceus P. A. Daly 1986-3-12 69 Humboldt Trinidad Head, along trail 61 Comment
  RSA244508  Sparganium angustifolium subsp. emersum Larry E. DeBuhr, Gary D. Wallace 1973-9-16 1198 Humboldt At Gold Bluff Beach in Prairie Creek Redwoods State Park. Comment
  HSC89260  Spartina alterniflora Anni Eicher 1989-4-20 366 Humboldt .5 mi. N of Samoa-Eureka bridge, E of State Hwy. 255, Humboldt Bay Comment
  HSC38406  Spartina densiflora J. P. Smith 1976-7-3 8938 Humboldt Manila, Samoa Peninsula Comment
  HSC93850  Spartina densiflora Gordon Leppig, Kai Neander 1999-4-30 1131 Humboldt Humboldt Bay, Eureka, 30 m S of Del Norte St. fishing pier 1 Comment
  UCR45375  Spartina densiflora K. Berg 1986-7-28 637 Humboldt Humboldt Bay Arcata; foot of I Street Comment
  CAS-BOT-BC5579  Spartina densiflora f. acuta Amos Arthur Heller 1924-7-21 13871 Humboldt at Eureka Comment
  SEINET11935224  Spergula arvensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -307 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC82960  Spergularia canadensis var. occidentalis A. L. Eicher 1985-6-20 Humboldt Humboldt Bay, .3 mi. S of jct. of Samoa Blvd. and Vance Ave. 1 Comment
  HSC90396  Spergularia macrotheca Jean Hanson 1980-8-28 118 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. Comment
  HSC99821  Spergularia rubra J. O. Sawyer 1980-7-18 3590 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA0098105  Spergularia rubra H. M. Pollard 1948-7-29 s.n. Humboldt Near Orleans. Comment
  RSA46477  Spiraea douglasii Doris K. Kildale 1927-6-26 3601 Humboldt Big Lagoon. Comment
  RSA85248  Spiraea douglasii F. W. Peirson 1923-7-11 3752 Humboldt 7 miles N of Arcata. Comment
  UCD114053  Spiraea douglasii Malcolm A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  RSA249515  Spiranthes romanzoffiana Robert F. Thorne, Percy C. Everett 1965-8-9 35294 Humboldt Big Lagoon. 3 Comment
  UC176181  Spiranthes romanzoffiana Joseph P. Tracy 1913-9-9 4398 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  HSC37807  Spiranthes romanzoffiana A. Montalvo, J. D. Ackerman 1976-8-11 786 Humboldt W side of Freshwater Lagoon, along Hwy. 101 Comment
  UC963853  Stachys ajugoides var. ajugoides H. E. Parks and S. T. Parks August, 1943 24252 Humboldt Spruce Cove North Coast Ranges, Trinidad 60 Comment
  UC635137  Stachys ajugoides var. rigida H. L. Mason 1932-7-21 7103 Humboldt Big Lagoon Comment
  UCLA70877  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-12 16054 Humboldt Table Bluff Beach, lowlands at w foot of bluff Table Bluff 6 Comment
  UCLA71142  Stachys ajugoides var. rigida Joseph P. Tracy 1938-8-21 16131 Humboldt in front of s end Stone Lagoon (along coast); Dry Lagoon 3 Comment
  HSC59567  Stachys arvensis Rick Lundquist 1979-4-9 5 Humboldt Arcata, St. Louis Rd., .1 mi. N of Hwy. 101 overpass 15 Comment
  POM283271  Stachys bullata Lyman Benson 1928-7-10 s.n. Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  RSA22551  Stachys emersonii H. E. Parks, S. T. Parks 1937-07 24025 Humboldt Spruce Cove, Trinidad. Comment
  HSC89453  Stachys mexicana M. Roantree 1985-5-7 40 Humboldt SW side of Trinidad Head, along trail Comment
  UCD126028  Stachys rigida James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SBBG6537  Stachys rigida H. and M. Dearing 1939-6-23 3696 Humboldt 12 mi E of Arcata Comment
  UC1191454  Stellaria borealis subsp. sitchana Malcolm A. Nobs and S. Galen Smith 1949-8-9 1245 Humboldt Clam Beach Comment
  UC1103544  Stellaria borealis subsp. sitchana Joseph P. Tracy 1935-7-27 14294 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  HSC56439  Stellaria calycantha Griswold, Butler 1979-7-12 7168 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC161055  Stellaria media Joseph P. Tracy 1907-5-20 2562 Humboldt Eureka; Northern Coast Region 0 Comment
  UC552237  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1933-7-16 12790 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC58078  Streptopus amplexifolius G. L. Clifton, Griswold 1979-8-1 11980 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1103496  Streptopus amplexifolius var. americanus Joseph P. Tracy 1949-6-25 18346 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1103501  Streptopus amplexifolius var. americanus Joseph P. Tracy 1935-7-25 14230 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC1198649  Swertia albicaulis var. nitida Joseph P. Tracy 1911-7-6 3359 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC562305  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC63139  Swertia radiata M. A. Baker 1979-6-27 935 Humboldt Head of Oregon Creek Comment
  HSC96471  Symphyotrichum chilense Gordon Leppig 1997-6-19 455 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC99172  Symphyotrichum chilense Henry M. Pollard 1956-10-14 s.n. Humboldt Rocky crevices along Klamath River near mouth of Pearch Creek, Orleans. Comment
  CAS-BOT-BC98974  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1218 Humboldt Trinity Summit near Ranger Station 1828 Comment
  CAS-BOT-BC98975  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1216 Humboldt Trinity Summit near Ranger Station 1828 Comment
  JEPS9928  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 Humboldt East Fork of Willow Creek (Willow Creek Canyon); Northern Coast Ranges 457 Comment
  UC199113  Synthyris reniformis Chestnut and Drew 1888-7-8 Humboldt Campbell's Comment
  UC582543  Synthyris reniformis Joseph P. Tracy 1923-3-10 6152 Humboldt Van Duzen River, near Grizzly Creek; Van Duzen River 91 Comment
  HSC100684  Synthyris reniformis var. cordata Carl C. Marshall Jan 1887 354 Humboldt Liscom's Hill. Comment
  HSC90678  Tanacetum bipinnatum Gail Newton 1982-5-5 2523 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC6258  Taraxacum officinale Richard Steele 1962-3-4 3 Humboldt 1/2 mi. W of HSC campus 15 Comment
  HSC79416  Taraxacum officinale Kenneth Clark 1980-3-1 507 Humboldt On access trail to Dead Man's Gulch 30 Comment
  HSC20430  Tellima grandiflora D. E. Anderson 1962-3-31 1964 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  RSA168931  Thalictrum polycarpum Joseph P. Tracy 1950-7-6 18986 Humboldt Burr Valley, NW slope of Buck Mtn 1067 Comment
  CAS-BOT-BC81313  Thuja plicata Doris K. Kildale 1926-8-28 2567 Humboldt Wildcat ridge, west of Ferndale near Boynton's 457 Comment
  RSA28962  Thuja plicata E. K. Balls, Percy C. Everett 1953-10-11 18632 Humboldt 3.3 miles south of Ferndale on Old Coast Road from Petrolia 366 Comment
  UC1190156  Thuja plicata Ira L. Wiggins 1955-7-31 13594 Humboldt 9 mi e of Arcata (hillside, along Highway 299); Highway 299 316 Comment
  CAS-BOT-BC436936  Tiarella trifoliata var. unifoliata Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC56095  Tiarella trifoliata var. unifoliata G. L. Clifton 1979-7-31 11802 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC436914  Tiarella trifoliata var. unifoliata C. C. Harris; S. K. Harris 1936-6-16 660 Humboldt Yager Road from Carlotta 152 Comment
  UC154080  Tolmiea diplomenziesii J. P. Tracy 1900-5-30 832 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC447611  Tolmiea menziesii J. P. Tracy 1900-5-30 832 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC58401  Torreyochloa pallida var. pauciflora Griswold, Butler 1979-7-11 7032 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  SEINET244810 Image available Torreyochloa pallida var. pauciflora J. P. Tracy 1934-7-18 13429 Humboldt Grouse Mountain. 1524 Comment
  UC902124  Toxicodendron diversilobum Joseph P. Tracy 1949-8-8 18404 Humboldt Trinity R. Valley at Willow Creek Trinity R. Valley, Willow Creek 152 Comment
  HSC6288  Tracyina rostrata J. P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek. 152 Comment
  NY274177  Tracyina rostrata J. P. Tracy 1916-6-20 4735 Humboldt Alder Point Comment
  HSC75391  Trautvetteria caroliniensis J. O. Sawyer, M. A. Ericksen 1980-7-18 3639 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  HSC100081  Trientalis latifolia Jimerson, J. Pageau 1979-6-22 607 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  HSC17942  Trientalis latifolia H. E. Parks, S. T. Parks Jun 1952 7548 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC97593  Trientalis latifolia Steven Lee 2004-4-26 27 Humboldt E several mi. from Arcata on Jacoby Creek Rd. Comment
  JEPS65949  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-10 9940 Humboldt 3 mi s Point of Cape Mendocino (sw slopes fronting the ocean); Northern Coast Ranges Comment
  UC160920  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1906-7-4 2535 Humboldt near Hydesville (Yager Creek); Northern Coast Ranges 60 Comment
  UC16425  Trifolium barbigerum J. Burtt Davy 1899-6-17 5603 Humboldt Arcata Comment
  UC1197493  Trifolium barbigerum Joseph P. Tracy 1904-4-24 2027 Humboldt Ocean Beach Humboldt Bay Comment
  UC1197180  Trifolium bifidum var. decipiens J. P. Tracy 1899-5-26 47 Humboldt immediate vicinity Eureka 0 Comment
  UC1541600  Trifolium ciliolatum Harold E. Parks May 1923 1497 Humboldt Eel River, McCanns Comment
  JEPS66053  Trifolium dubium W. L. Jepson 1902-6-24 1923 Humboldt Eureka to Arcata Comment
  UCD108864  Trifolium dubium A. H. Murphy 1947-4-25 s.n. Humboldt 2 miles N of Blocksburg, W. Smith Ranch. Comment
  UC495648  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8769 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  JEPS79999  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-29 8821 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges Comment
  UC495649  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-29 8821 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges Comment
  UC1197033  Trifolium fucatum Joseph P. Tracy 1932-5-10 9963 Humboldt near Petrolia (Mattole River); North Coast Ranges 15 Comment
  UC16800  Trifolium fucatum J. Burtt Davy 1899-6-8 5356 Humboldt near Harris; North Coast Ranges Comment
  HSC43108  Trifolium fucatum Maralyn O'Meara 1974-5-14 360 Humboldt Along Hwy. 36, 7.1 mi. E of Bridgeville Comment
  UC1197190  Trifolium gracilentum Joseph P. Tracy 1911-5-30 3194 Humboldt Bucksport Northern Coast Region, Humboldt Bay Comment
  HSC70238  Trifolium longipes M. A. Baker 1980-6-8 1902 Humboldt Near Buck Flat. 1554 Comment
  UC495657  Trifolium longipes var. elmeri Joseph P. Tracy 1936-7-13 10525 Humboldt Trinity Summit Klamath Mtns, Corral Prairie 1524 Comment
  UC165536  Trifolium macraei Harley P. Chandler May, 1901 1148 Humboldt Eureka North Coast Ranges 30 Comment
  UC495661  Trifolium macraei Joseph P. Tracy 1932-5-10 9940 Humboldt 3 mi s point of cape (fronting the ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  UC1541572  Trifolium microcephalum Harold E. Parks May 1933 4314 Humboldt Spruce Cove Trinidad Comment
  HSC79459  Trifolium microcephalum Kenneth Clark 1980-4-18 591 Humboldt Shelter Cover, along access trail to Dead Man's Gulch 107 Comment
  SEINET4178759 Image available Trifolium obtusiflorum Unknown 1932-6-14 10153 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1197488  Trifolium obtusiflorum Joseph P. Tracy 1920-5-18 5330 Humboldt 4 mi above mouth of Eel River (Forest Lodge, on South Fork); Northern Coast Ranges 60 Comment
  UC1223339  Trifolium obtusiflorum Joseph P. Tracy 1933-6-11 12555 Humboldt 4 mi s Dyerville (along hwy, along South Fork Eel River) Comment
  UC1541586  Trifolium pratense W. K. Parks July 1932 Humboldt near Trinidad (fields) Comment
  UCR122354  Trifolium pratense George K. Helmkamp, E. A. Helmkamp 2001-7-8 6963 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  UC33491  Trifolium repens Chesnut and Drew 1888-7-11 Humboldt Eureka Comment
  HSC45113  Trifolium repens R. Sutherland 1978-5-17 1 .17578 Humboldt 305 Comment
  HSC103979  Trifolium subterraneum Kyle Brown 2015-4-25 42 Humboldt Arcata, trail along the Mad River 8 Comment
  JEPS4135  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8570 Humboldt Miranda Northern Coast Ranges, South Fork Eel River 121 Comment
  UC1197560  Trifolium variegatum var. variegatum Joseph P. Tracy 1927-5-8 7993 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC1197511  Trifolium willdenovii Joseph P. Tracy 1932-5-17 10092 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1223318  Trifolium willdenovii Joseph P. Tracy 1942-5-16 17358 Humboldt 1 mi ne Garberville (on rd to Harris) 304 Comment
  JEPS37725  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Northern Coast Ranges, Little River Beach Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  POM349598  Trifolium wormskioldii M. B. Dunkle 1936-8-18 4814 Humboldt South of Eureka. 91 Comment
  RSA168905  Trifolium wormskioldii Joseph P. Tracy 1938-7-24 16087 Humboldt Corner of Pacific and A Streets. Eureka. Comment
  UC303197  Trifolium wormskioldii Joseph P. Tracy 1925-5-30 7044 Humboldt McClellan Mtn Northern Coast Ranges 822 Comment
  POM188101  Triglochin maritima Marcus E. Jones 1931-7-16 29221 Humboldt Arcata. Comment
  RSA249527  Triglochin maritima Robert F. Thorne, Percy C. Everett 1965-8-7 35214 Humboldt Samoa Peninsula: near sea level Comment
  UC1409179  Triglochin maritima Robert F. Thorne and P. Everett 1965-8-7 35214 Humboldt Samoa Penisula 0 Comment
  HSC97549  Triglochin striata Ivy Watson 2008-9-20 30 Humboldt N of mouth of Mad River, along small tributary E of sand dunes 4 Comment
  SEINET10745910  Triglochin striata J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13019 Humboldt North of McKinleyville off U.S. 101 (a few kilometers north of Eureka), Clam Beach County Park. Comment
  CAS-BOT-BC133396  Trillium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  CHSC23038  Trillium ovatum E. K. Daniels 1964-4-18 33 Humboldt Prairie Creek State Park; 1 mi from Pacific Ocean beach on trail towards Park Headquarters. 30 Comment
  HSC58083  Trillium ovatum G. L. Clifton, Griswold 1979-8-1 11987 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  RSA183586  Trillium ovatum R. D. Zortman 1963-3-16 14 Humboldt 5 miles northeast of Arcata; south of the Mad River, off Warren Creek Road. 91 Comment
  SEINET10275389  Trillium ovatum Unknown 1963-2-24 52 Humboldt altitude ca 250 ft, floor of Redwood Forest; Nelson Grove near bank of Eel River, Humboldt State Park Comment
  SJSU10558  Trillium ovatum C. P. Hansen 1966-4-6 70 Humboldt by Kneeland Rd 20 mi E of Eureka Comment
  UC1197829  Trillium ovatum Joseph P. Tracy 1918-4-21 4883 Humboldt near Newell's old camp, on old Kneeland Prairie rd. Newell's old camp; Northern Coast Ranges, around Humboldt Bay 304 Comment
  UC1222528  Trillium ovatum Joseph P. Tracy 1950-4-20 18613 Humboldt 1 mi. w. Dinsmore's (on Van Duzen R.); Van Duzen R. Comment
  SEINET10972644  Triodanis biflora Lincoln Constance Constance 818 Humboldt LOOK PRAIRIE Comment
  JEPS11782  Triodanis perfoliata Milo S. Baker 1923-6-20 42 Humboldt headwaters of Yager Creek Comment
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Jan 2 2016
  UC29217  Triodanis perfoliata W. C. Blasdale 1899-6-26 5888 B Humboldt Weitchpek <Weitchpec>; North Coast Ranges, Klamath River, Weitchpek <Weitchpec> Comment
  HSC31558  Triphysaria versicolor subsp. faucibarbata Glenn McGourty 1974-4-27 31 Humboldt Along side of Mattole River Comment
  UC1198043  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1927-4-24 7928 Humboldt Eureka 6 Comment
  RSA44544  Trisetum canescens Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans, Humboldt County Comment
  UC187232  Trisetum canescens J. P. Tracy 1903-5-22 1877 Humboldt Alder Point Eel River (on Eel River) 152 Comment
  UCD93893  Trisetum canescens Joseph P. Tracy 1901-6-23 1167 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC40318  Trisetum cernuum Thomas W. Nelson, James Nelson 1976-7-28 3074 Humboldt Along small creek on the E side of old trail from lookout to Blocksburg. 1555 Comment
  SEINET198591 Image available Trisetum cernuum H. E. Parks, S. T. Parks 7551 Humboldt Spruce Cove Trinidad. 61 Comment
  SEINET244120 Image available Trisetum cernuum Joseph P. Tracy 1918-4-21 4881 Humboldt Openings in moist woods 'Newell's Camp' on old Kneeland Prairie Road. 305 Comment
  UC15030  Triteleia bridgesii Mrs. M. H. Manning 1901-5-22 1 Humboldt Hupa Valley Comment
  JEPS64202  Triteleia hyacinthina Lincoln Constance 1934-6-25 930 Humboldt Englewood, across road from Collin's Englewood Campground, on e side of road South Fork Eel River, Bull Creek Region Comment
  UC1197712  Triteleia hyacinthina Joseph P. Tracy 1932-6-26 10268 Humboldt Fort Baker Ranch 762 Comment
  JEPS2503 Image available Triteleia laxa W. L. Jepson 1921-8-11 9412 a Humboldt Big Lagoon Humboldt coast; Big Lagoon, Humboldt coast Comment
  SEINET200771  Triteleia laxa Joseph P. Tracy 1947-6-8 17704 Humboldt Carlotta; Open flat by old Strong's District School House 5 miles east of town 46 Comment
  SEINET12053141  Triteleia laxa K. S. Erdman 1970-1 4768 Humboldt S slope of Schoolhouse Peak on Bald Hills Road, about 16 mi S of Orick 914 Comment
  RSA134598  Tsuga heterophylla P. C. Everett, E. K. Balls 1959-10-25 23963 Humboldt 22 miles west from Willow Creek along US Highway 299 to Arcata. 579 Comment
  RSA168809  Umbellularia californica Joseph P. Tracy 1950-12-10 18600 Humboldt Vicinity of Carlotta. 30 Comment
  UC1193224  Umbellularia californica R. H. Neuns 1950-10-12 139 Humboldt Queens Peak, Quadrangle 28D4 Queens Peak 701 Comment
  UC1196281  Umbellularia californica Joseph P. Tracy 1926-12-5 7835 Humboldt Blue Slide, on Van Duzen River Van Duzen River; Northern Coast Ranges, Blue Slide, Van Duzen River 91 Comment
  SEINET12103378  Umbellularia californica J. P. Tracy 1950-12-10 s.n. Humboldt no further locality Comment
  SEINET200747  Urtica urens Joseph P. Tracy 1922-7-16 6103 Humboldt Eureka. 0 Comment
  JEPS9172  Utricularia macrorhiza Joseph P. Tracy 1930-8-3 9146 Humboldt on old rd. to Dinsmore's (pond near Little Van Duzen R.) 762 Comment
  UC562245  Vaccinium membranaceum Joseph P. Tracy 1935-7-22 14121 Humboldt Forks of Tish-Tang-A-Tang Creek Trinity Summit 1371 Comment
  CAS-BOT-BC199317  Vaccinium ovatum C. Hart Merriam 1921-7-7 s.n. Humboldt Van Duzen River Bridge Comment
  CAS-BOT-BC199324  Vaccinium ovatum L. R. Abrams 1918-6-16 7188 Humboldt Willow Creek Comment
  HSC34645  Vaccinium ovatum Thomas Anthony 1975-4-8 3 Humboldt E of HSU tennis courts on ridge facing Fern Lake from W Comment
  HSC7904  Vaccinium ovatum R. A. Rasp 1964-5-20 43 Humboldt 4 mi. W of Arcata off Lanphere Rd. on Lanphere Ranch Comment
  HSC95645  Vaccinium ovatum Andrea Pickart 2002-4-5 41 Humboldt Lanphere Dunes 15 Comment
  RSA172257  Vaccinium ovatum R. F. Thorne 1957-9-3 19027 Humboldt Patrick's Point State Park. Comment
  RSA2925  Vaccinium ovatum C. B. Wolf 1931-8-29 1240 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  UC1225908  Vaccinium ovatum Joseph P. Tracy 1943-3-14 17409 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  UC412670  Vaccinium ovatum Mrs. M. H. Manning Apr 1899 Humboldt Hupa Valley Comment
  UCR178913  Vaccinium ovatum R. G. Swinney 1968-4-13 242 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  CAS-BOT-BC199409  Vaccinium parvifolium C. H. M. 1920-8-29 s.n. Humboldt Lower Eel River, near Pepperwood Comment
  HSC7924  Vaccinium parvifolium P. Markle 1962-5-3 18 Humboldt Arcata Community behind HSU campus 30 Comment
  UC562351  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1935-7-26 14262 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  HSC56438  Vancouveria hexandra Griswold, Butler 1979-7-12 7165 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1537345  Vancouveria hexandra Gordon H. True Jr. 1936-5-12 470 Humboldt 5 mi s Kneeland; s of Kneeland 457 Comment
  HSC3386  Vancouveria hexandra D. B. Bader 1963-5-15 50 Humboldt .25 mi. up Jolly Giant Creek from HSU men's dormitory Comment
  CAS-BOT-BC76096  Vancouveria planipetala Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  CHSC63383  Vancouveria planipetala Vernon H. Oswald 1994-6-29 6363 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 3.5 mi NE of Titlow Hill Rd., 4.6 mi S of Brush Mtn. Lookout Rd., S of Hey. 299 and Willow Creek. 1237 Comment
  HSC41305  Vancouveria planipetala Brad Klipfel 1974-7-23 468 Humboldt Horse Mtn. Comment
  UCR52470  Vancouveria planipetala J. O. Sawyer, R. J. Cole 1977-7-3 3003 Humboldt Environs of Mud Sprng. Big Hill Road (F.S. 8N01) 1246 Comment
  UCD99496  Velezia rigida Joseph P. Tracy 1947-7-5 17774 Humboldt Trinity Summit; local on ridge top one mile west of Mud Springs. Comment
  UC302168  Veratrum californicum var. californicum Joseph P. Tracy 1925-7-5 7170 1/2 Humboldt in wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1173643  Veratrum viride Joseph P. Tracy 1934-8-29 13640 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  HSC100694  Verbena prostrata Carl C. Marshall Jul 1887 327 Humboldt Dry interior valleys. Comment
  HSC53820  Veronica americana Terry Griswold, Marvin Butler 1979-7-10 6261 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC1011936  Veronica americana F. W. Pennell and J. P. Tracy 1940-7-7 26088 Humboldt headwaters of Willow Creek, Route 299 Willow Creek 762 Comment
  HSC78977  Veronica peregrina subsp. xalapensis L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 720 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  HSC11992  Veronica persica D. La Conte 1970-10-11 26 Humboldt Ploughed area Comment
  HSC21210  Veronica persica N. J. Cole, D. E. Anderson 1965-3-20 8 Humboldt 3 mi. W of Arcata near Lanphere Rd. Comment
  HSC75486  Veronica serpyllifolia subsp. humifusa J. O. Sawyer 1980-7-18 3609 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC96944  Veronica serpyllifolia subsp. humifusa Ryoko Ito, Shauna McDonald 2007-6-13 7 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  UC1197463  Vicia americana var. americana J. P. Tracy 1901-5-30 1111 Humboldt immediate vicinity Eureka 0 Comment
  UC1197468  Vicia americana var. americana Joseph P. Tracy 1914-7-12 4580 Humboldt near Hookton; Northern Coast Region, Humboldt Bay Region 0 Comment
  UCD108778  Vicia benghalensis Rimo Bacigalupi; L. Heckard, J. Weiler 1961-6-23 7838 Humboldt About 1 mile west of Carlotta (or about 1/2 mile east of Hydesville). Comment
  HSC31735  Vicia gigantea Donald Spalinger 1974-4-20 17 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  HSC49032  Vicia gigantea Patricia Shesgreen 1978-5-5 65 Humboldt 5.1 mi. S of Ferndale on Mattole Rd. Comment
  HSC89497  Vicia gigantea P. A. Daly 1984-5-8 3 Humboldt Trinidad Head 61 Comment
  HSC104455  Vicia hirsuta Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 29 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC495713  Vicia hirsuta Joseph P. Tracy 1932-10-30 10899 Humboldt Alton to Fortuna (Eel River); Northern Coast Region, Eel River 15 Comment
  HSC15262  Vicia hirsuta W. F. Nickel 1965-4-22 Humboldt N Arcata on E side of Hwy. Comment
  RSA170257  Vicia hirsuta Joseph P. Tracy 1916-5-31 4689 Humboldt Stitz Creek. Along Eel River South Fork to Scotia. 61 Comment
  SBBG52994  Vicia sativa subsp. nigra J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  CHSC35677  Vicia sativa subsp. sativa James P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC15278  Vicia sativa subsp. sativa Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC15279  Vicia sativa subsp. sativa J. L. Baker 1965-4-2 25 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  RSA170273  Vicia tetrasperma Joseph P. Tracy 1916-5-16 4688 Humboldt Stitz Creek. Along Eel River from South Fork to Scotia. 61 Comment
  CAS-BOT-BC263941  Viola adunca C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  CAS-BOT-BC263945  Viola adunca Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC263951  Viola adunca L. B. Kildale 1926-3-26 1656 Humboldt Dillon Road between Beatrice and Field's Landing Comment
  UC502954  Viola adunca Joseph P. Tracy 1930-5-4 8693 Humboldt McClellan Mountain; Northern Coast Ranges 609 Comment
  UC1761536  Viola adunca Mrs. Wilder 1926-4 5432 Humboldt Carlotta, Mrs. Wilder's yard Comment
  SEINET200808 Image available Viola cuneata Joseph P. Tracy 1927-6-12 8124 Humboldt Horse Mountain. 1520 Comment
  HSC34157  Viola glabella Linda M. Barker 1974-5-11 178 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC45496  Viola glabella Maralyn O'Meara 1972-6-8 97 Humboldt Along Bald Hills Rd. 18 mi. E of junction with Hwy. 101 Comment
  CHSC97987  Viola hallii J. Breton; A. Livingston 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. south of Hwy 299 on NF1. 1357 Comment
  POM126626  Viola hallii P. E. Goddard 1906-06 667 Humboldt Lasseck Pk. Comment
  UC35283  Viola hallii Chesnut and Drew July 1888 Humboldt Kneeland Comment
  RSA21092  Viola hallii Carl B. Wolf 1937-6-14 8820 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  CAS-BOT-BC530123  Viola lobata subsp. integrifolia J. H. Thomas 1949-6-13 907 Humboldt along trail between Le Perron Flat and Whiteys Peak; Six Rivers National Forest 1371 Comment
  HSC32842  Viola ocellata Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC81726  Viola ocellata Thomas W. Nelson, Jane P. Nelson 1980-5-25 5255 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UC668242  Viola sempervirens Joseph P. Tracy 1938-4-5 15706 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 457 Comment
  HSC70239  Viola sheltonii M. A. Baker 1980-6-8 1903 Humboldt Near Buck Flat. 1554 Comment
  HSC40867  Vulpia bromoides Linda M. Barker 1976-4-30 1398 Humboldt 3 mi. W of Arcata Comment
  UCD93557  Vulpia bromoides A. H. Murphy 1951-5-15 33 Humboldt 1 mile southeast of Whitlow-Fruitland Road junction on Whitlow Road. Comment
  HSC23096  Vulpia microstachys D. E. Anderson, J. P. Smith, J. O. Sawyer 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  CAS-BOT-BC128813  Whipplea modesta L. R. Abrams 1922-6-25 8222 Humboldt 6 mi. north of Garberville Comment
  HSC44524  Whipplea modesta Brad Klipfel 1973-7-1 132 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UCR32168  Whipplea modesta David J. Keil 1983-7-2 17322 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  UCSB29327  Woodwardia fimbriata Phelps, M. 1972-3-20 Humboldt 1.5 miles from Garberville along Old Briceland Road, 0.5 miles N of roadside. 213 Comment
  HSC6316  Wyethia angustifolia Frances Oldridge 1945-1 Humboldt Arcata 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
  UC1225857  Xerophyllum tenax Joseph P. Tracy 1947-7-9 17862 Humboldt Horse Mountain 1432 Comment
  HSC100567  Xerophyllum tenax Carl C. Marshall Jun 1885 82 Humboldt Ridge between Redwood and N Fork. Comment
  SEINET12197025  Zauschneria californica E. A. York 1990-1-10 2675 Humboldt USGS Redwood Field Station, Arcata Comment



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