Search Results — 2000 specimen records retrieved (1373 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC73468  Abies X shastensis Doris K. Kildale 1925-8-17 1200 Humboldt Trinity Summit 1889 Comment
  HSC54602  Abies concolor Overton, Butler 1979-7-24 9684 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC73162  Abies concolor Gail Newton 1980-6-28 711 Humboldt Near Mad River Butte. 1536 Comment
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 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
  CHSC55899  Abronia latifolia L. P. Janeway 1987-7-31 2542 Humboldt Vicinity of Eureka; North spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  SEINET5011048  Abronia latifolia Unknown 2002-8-19 83 Humboldt Sand beach N of rocky promontory and coast guard station. Comment
  CAS-BOT-BC330542  Acer circinatum C. B. Wolf 1931-8-29 2368 Humboldt Redwood Highway, 3 miles N of Orick. (Davison's Ranch on Prairie Creek) 60 Comment
  CAS-BOT-BC28590  Achillea millefolium Ira L. Wiggins 1940-7-10 9485 Humboldt Big Lagoon Comment
  CHSC32850  Achillea millefolium L. L. Anderson 1981-4-25 6 Humboldt Ca. 0.5 mi e of ocean (Moonstone Beach) w of Hwy 101, 11.5 mi n of Arcata. 0 Comment
  UC1222922  Achillea millefolium Joseph P. Tracy 1950-5-30 18712 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC400015  Achlys triphylla Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC56973  Achlys triphylla Overton, Butler 1979-7-23 9506 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  SEINET5585534 Image available Achnatherum lemmonii Joseph P. Tracy 1950-1 18787 Humboldt Mail Ridge, north of Harris 7 miles 1036 Comment
  UC60151  Achnatherum lemmonii J. Burtt Davy 1899-6-8 5348 Humboldt Bell Springs North Coast Ranges, Bell Springs Comment
  UC682049  Achnatherum lemmonii G. L. Stebbins Jr. and G. L. Church 1941-5-27 3113 Humboldt 4.1 mi w on road to Bridgeville Dinsmore's 762 Comment
  RSA249338  Achnatherum nevadense D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5624 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  SEINET201041  Achnatherum occidentale subsp. californicum J. P. Tracy, HE Parks 1934-6-27 11078 Humboldt Grouse Mtn N Coast Range 1433 Comment
  HSC98308  Acmispon micranthus D. B. Bader 1963-3-1 22 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC64762  Acmispon micranthus Bruce Gordon 1979-6-18 140 Humboldt Redwood National Park, NNE of K & K Rd, about 2.5 mi. S of junction of K & K Rd. and Bald Hills Rd. 707 Comment
  HSC98302  Acmispon micranthus Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  HSC56085  Aconitum columbianum subsp. columbianum G. L. Clifton, Griswold 1979-7-31 11773 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC74411  Aconitum columbianum subsp. columbianum Gail Newton 1980-8-10 2029 Humboldt Near Blake Mtn. 1707 Comment
  CAS-BOT-BC412847  Aconogonon davisiae Joseph P. Tracy 1935-7-30 14383 Humboldt Salmon Summit 2103 Comment
  UCD137891  Acorus calamus Malcolm A. Nobs; S. Galen Smith 1949-8-9 1242 Humboldt on south side of the town of Blue Lake. Comment
  SEINET12094122  Actaea rubra F. H. Utech 1988-1 88 -268 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  UC1222569  Actaea rubra Joseph P. Tracy 1950-7-2 18977 Humboldt below Grizzly Camp (along creek at crossing of Little Hors Linto Creek); Trinity Summit Comment
  UC1199430  Adenocaulon bicolor Joseph P. Tracy 1912-7-27 3880 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC40126  Adenocaulon bicolor Thomas W. Nelson, James Nelson 1976-7-28 3075 Humboldt Along small creek E of old road from Goat Mountain lookout to branch road of FS 2S08 N of Alder Springs. 1555 Comment
  OBI1123  Adiantum X tracyi Lawrence L. Kiefer 1964-5-19 1406 Humboldt Garberville, California one mile north of town, ravine just above Highway 101 305 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
  HSC37414  Adiantum aleuticum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 508 Humboldt Along Lost Man Creek. 38 Comment
  RSA687732  Adiantum aleuticum Maude Minthorn s.n. Humboldt Ferndale Comment
  CAS-BOT-BC62295  Adiantum aleuticum L. B. Kildale 1930-6-1 9745 Humboldt Klamath River at Weitchpec Comment
  HSC43906  Adiantum aleuticum H. S. Logsdon 1964-5-14 42 Humboldt 3 mi. SE of Bayside on Jacoby Cr. Rd. Comment
  CAS-BOT-BC65625  Adiantum jordanii Ira L. Wiggins 1957-6-21 14137 Humboldt 1 mile south of Garberville on east side of road Comment
  HSC31797  Aesculus californica Steve Selva, Roger Jensen 1974-8-27 80 Humboldt W of Humboldt-Trinity co. line on Hwy. 299 Comment
  UC1199008  Aesculus californica Joseph P. Tracy 1938-6-9 15873 Humboldt Dobbyn Creek 152 Comment
  HSC74690  Agoseris grandiflora Gail Newton 1981-8-7 2464 Humboldt Near Board Camp Mtn. 1478 Comment
  UC164893  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1909-7-31 3027 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC582754  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1930-7-6 8842 Humboldt Kneeland Prairie Kneeland Prairie 762 Comment
  CAS-BOT-BC29623  Agoseris grandiflora var. grandiflora J. T. Howell 1931-6-16 6714 Humboldt Valley Flat, 5 miles S of Garberville Comment
  UC1222934  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-6-15 17146 Humboldt n end Garberville Comment
  UC166072  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1911-7-12 3528 Humboldt near, in fields Blue Lake; Northern Coast Ranges 60 Comment
  HSC56444  Agoseris heterophylla Griswold, Butler 1979-7-12 7191 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC175200  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1913-6-14 4132 Humboldt at, (opposite Buck Mountain, in valley of Van Duzen River) Dinsmore's Ranch; Northern Coast Ranges, Van Duzen River 762 Comment
  UC275457  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7019 C Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC450003  Agoseris hirsuta Joseph P. Tracy 1923-6-20 6316 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  HSC32335  Agoseris retrorsa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5616 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC98818  Agrostis capillaris Cara Witte 2007-7-25 575 Humboldt Waterhole off FS Road 5N10. 2 mi E of intersection with National Forest 1. 1369 Comment
  CHSC116250  Agrostis castellana Barbara L. Wilson; Nick Otting 2012-7-3 17134 Humboldt Dean Creek Resort between the Eel River and the Old Redwood Highway, west of Highway 101; UTM zone 10T, 430910 east, 443867 north. 76 Comment
  JEPS75411  Agrostis exarata W. L. Jepson 1932-7-24 16380 Humboldt near Camp Grant; Eel River 91 Comment
  UC204531  Agrostis exarata Joseph P. Tracy 1918-7-21 5085 Humboldt around Humboldt Bay (mossy bog); Northern Coast Ranges, Humboldt Hill 91 Comment
  UCD52139  Agrostis exarata Joseph P. Tracy 1936-6-28 15030 Humboldt Bald Mountain; at 'Lake Prairie'. 1066 Comment
  UCD52429  Agrostis exarata P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia by road off highway. Comment
  UC511548  Agrostis hallii Ira L. Wiggins 1932-7-25 5896 Humboldt roadsides near McKinleyville Comment
  BLMAR707  Agrostis hallii Jennifer Wheeler 2013-10-25 707 Humboldt Lacks Creek, Upper Round Prairie 731 Comment
  UC526878  Agrostis oregonensis Joseph P. Tracy 1924-7-4 6711 Humboldt in boggy meadow Northern Coast Ranges, Snow Camp 1371 Comment
  UC526880  Agrostis oregonensis Joseph P. Tracy 1927-8-22 8344 Humboldt bog in cold wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC552730  Agrostis pallens Joseph P. Tracy 1935-7-28 14335 Humboldt head Brett Hole (rocky exposed places); Trinity Summit 1828 Comment
  RSA10067  Agrostis stolonifera Joseph P. Tracy 1924-8-17 6819 Humboldt Trinidad 61 Comment
  HSC58825  Agrostis thurberiana Walter Overton 1979-8-1 12399 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  SEINET186044  Aira caryophyllea H. E. Parks, S. T. Parks 5850 Humboldt Spruce Cove Trinidad Comment
  UC1103299  Aira caryophyllea Joseph P. Tracy 1919-5-31 5142 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1541535  Aira caryophyllea Harold E. Parks June 1936 5850 Humboldt Spruce Cove Trinidad 60 Comment
  UC526678  Aira praecox Joseph P. Tracy 1925-6-13 7099 Humboldt Eureka Northern Coast Ranges 0 Comment
  JEPS11947  Alisma plantago-aquatica Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-10 4756 Humboldt 5.7 mi n Alder Point (pond along dirt road between Alder Point and Blocksburg) 243 Comment
  HSC42389  Allium amplectens Dale McNeal 1977-6-6 2046 Humboldt Beside the Bridgeville-Kneeland Rd., 9.4 mi. N of Bridgeville Comment
  UC677684  Allium amplectens C. C. and S. K. Harris 1936-6-24 645 Humboldt at point where road from Bridgeville to Dinsmore crosses the Little Van Duzen River Little Van Duzen River 710 Comment
  JEPS56360  Allium bolanderi W. L. Jepson 1902-7-13 2024 Humboldt South Fork, junction Trinity River Comment
  HSC32148  Allium campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5599 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC58123  Allium campanulatum G. L. Clifton, Griswold 1979-8-1 12098 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC73850  Allium falcifolium M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat 1554 Comment
  HSC23259  Allium triquetrum Jena Kattenhorn 1971-5-26 259 Humboldt Vacant lots of HSC campus Comment
  UC535705  Allium unifolium Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  UCSB18228  Allium unifolium 1961-7-3 Humboldt Along Eel River, 7.4 miles north of Phillipsville 243 Comment
  SDSU11522  Allium unifolium unknown, Santa Ana Botanic Gaden 1940-5-20 Humboldt Coast Ranges Monterey Comment
  UCD138614  Allium unifolium K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  CAS-BOT-BC453428  Allotropa virgata Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek, near Orleans Comment
  UC502990  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt in meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC170942  Alnus rhombifolia Doris K. Kildale 1925-8-13 1121 Humboldt Willow Creek near its mouth 152 Comment
  RSA778733  Alnus rubra Lyman Benson 1929-7-19 1878 Humboldt Mouth of Matole [Mattole] River. Comment
  UC275559  Alnus rubra Joseph P. Tracy 1923-2-25 6150 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 30 Comment
  UC212982  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CAS-BOT-BC138145  Alopecurus aequalis var. aequalis Doris K. Kildale 1927-7-23 3801 Humboldt Hoaglin Lake. Near Lasseck's Peaks. Comment
  CAS-BOT-BC138016  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt North Coast Ranges. Arcata Bottom. 15 Comment
  HSC8897  Alopecurus pratensis W. F. Cartwright 1965-4-22 60 Humboldt 2 mi. W of Arcata on Arcata bottoms Comment
  CAS-BOT-BC13700  Ambrosia chamissonis W. S. Cooper 1925-7-28 102 Humboldt Cape Mendocino Comment
  CAS-BOT-BC13705  Ambrosia chamissonis H. E. Parks 1941-8-1 24181 Humboldt Big Lagoon Comment
  CAS-BOT-BC13711  Ambrosia chamissonis David D. Keck 1935-6-16 3385 Humboldt Mouth of Little River. Comment
  UC1118432  Ambrosia chamissonis G. T. Nordstrom 1937-7-1 1445 Humboldt 1.6 mi w Orick; Orick Quad. 0 Comment
  HSC71057  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson, Jane P. Nelson 1977-5-30 3391 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  JEPS44699 Image available Amelanchier alnifolia var. semiintegrifolia Lincoln Constance 1934-6-11 845 Humboldt n Dyerville Flat South Fork Eel River, Bull Creek Region (trail along e bank of South Fork Eel River) Comment
  HSC56126  Amelanchier pallida G. L. Clifton, Griswold 1979-8-1 11917 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  RSA509059  Ammophila arenaria Lyman Benson 1929-7-15 1820 Humboldt Clam Beach, Trinidad. Comment
  UC545822  Amsinckia menziesii var. menziesii H. E. Parks March, 1933 4282 Humboldt Trinidad Comment
  HSC59142  Anagallis arvensis Terry Roth 1979-4-21 13 Humboldt Misty Mtn. Tree Farm Rd. off of Hookton Rd., near residence 46 Comment
  UC1198610  Anagallis arvensis Joseph P. Tracy 1912-6-9 3676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC45132  Anaphalis margaritacea Carl B. Wolf 1927-8-30 1230 Humboldt 2 miles S of Petrolia on Matole River near point where road crosses river Comment
  HSC76343  Anaphalis margaritacea D. K. Imper 1981-7-21 890 Humboldt Near Table Bluff 38 Comment
  HSC89471  Anaphalis margaritacea P. A. Daly 1986-3-12 96 Humboldt Trinidad Head, along trail 61 Comment
  HSC90394  Anaphalis margaritacea Jean Hanson 1980-8-28 117 Humboldt Indian (Gunther) Island, in Humboldt Bay, Eureka; Across from the Coast Guard Station beginning ca. 75 ft. from the high tide line Comment
  SBBG71821  Anemone deltoidea S. W. Hutchinson -Apr-1927 899 Humboldt Eureka 8 Comment
  JEPS60507  Anemone deltoidea W. L. Jepson 1902-6-22 1913 Humboldt Pepperwood Comment
  CAS-BOT-BC221420  Angelica hendersonii Carl B. Wolf 1937-9-9 9304 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  CHSC31297  Angelica hendersonii Mark Stopher 1980-7-2 122 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  UC1197379  Angelica hendersonii Joseph P. Tracy 1936-8-17 15156 Humboldt Table Bluff 91 Comment
  UC582636  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  UC582657  Angelica hendersonii Joseph P. Tracy 1936-10-24 15205 Humboldt Table Bluff 91 Comment
  UCD127226  Angelica hendersonii Joseph DiTomaso 1980-6-29 1634 Humboldt north side of Elkshead. 2 miles north of Trinidad. Comment
  HSC71276  Angelica lucida J. M. DiTomaso 1980-6-8 1577 Humboldt Next to Hwy 101 between Arcata and Eureka, 1.5 mi. S of Indianola Rd. Comment
  UC1197332  Angelica lucida Joseph P. Tracy 1941-8-3 16977 Humboldt at w foot of Table Bluff Table Bluff 6 Comment
  HSC39723  Angelica tomentosa Thomas W. Nelson 1976-10-25 3276 Humboldt Along ridge N of Bear Creek 1463 Comment
  SEINET13943410 Image available Angelica tomentosa W. A. Weber 1964-1 12204 Humboldt Mountain grade between summit of ridge separating Redwood Creek from Hoopa Valley, a few miles west of Hoopa Comment
  UC642238  Angelica tomentosa Joseph P. Tracy 1938-8-14 16107 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  CAS-BOT-BC271492  Anisocarpus madioides Doris K. Kildale 1928-5-19 5118 Humboldt Chalk Mountain Comment
  HSC57628  Antennaria howellii G. L. Clifton, Griswold 1979-7-25 10768 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  RSA254784  Anthemis cotula Thomas W. Nelson 1973-8-19 1111 Humboldt McKeown Ranch north of Dinsmore Comment
  UC166080  Anthemis cotula J. P. Tracy 1909-7-4 3011 Humboldt Eureka 0 Comment
  UCR48595  Anthemis cotula R. D. Goeden, Don W. Ricker 1987-9-2 870902- 13 Humboldt Loleta, along Cannibal Road 8 Comment
  CAS-BOT-BC137743  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad. Comment
  HSC8944  Anthoxanthum odoratum Paul Shields 1955-6-10 Humboldt Humboldt State University campus. Comment
  UC147926  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy Jul 1908 2790 Humboldt ridge between Van Duzen River and Mad River (near Low Gap, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  UC1197616  Apocynum androsaemifolium Joseph P. Tracy 1911-7-11 3518 Humboldt ridge next s. of Hoopa Valley (w. side of Trinity R. near Willow Creek); Northern Coast Ranges, Trinity R. 304 Comment
  HSC44500  Aquilegia formosa Brad Klipfel 1973-4-28 14 Humboldt Along Canyon Creek, SW of Korbel Comment
  UC162631  Aquilegia formosa Joseph P. Tracy 1911-7-6 3337 Humboldt between Three Creeks and mouth of Willow Creek Northern Coast Ranges Comment
  HSC18037  Aquilegia formosa var. formosa F. B. Plett 1963-5-11 45 Humboldt 1.5 mi. N of Trinidad on old Hwy. 101 Comment
  HSC31631  Aquilegia formosa var. formosa Glenn McGourty 1974-4-27 18 Humboldt 1 mi. from Capetown Bridge Comment
Read comments
May 26 2016
  HSC48990  Aquilegia formosa var. formosa M. A. Baker 1979-5-25 757 Humboldt Comment
  HSC100612  Aquilegia truncata Carl C. Marshall Jun 1886 121 Humboldt Everywhere, Humboldt Bay. Comment
  HSC76368  Arabis breweri var. breweri Denis Kearns 1981-7-21 293 Humboldt Near Whiteys Peak 1585 Comment
  UC161543  Arabis glabra Joseph P. Tracy 1906-5-13 2456 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC75478  Arabis sparsiflora var. subvillosa J. O. Sawyer 1980-7-18 3625 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC314608  Aralia californica Joseph P. Tracy 1923-9-16 6554 Humboldt Trinity R. Valley near mouth of S. Fork; Northern Coast Ranges 182 Comment
  UCD128220  Aralia californica B. L. Kay 1954-8-26 s.n. Humboldt 5 miles west of Gaberville. Comment
  HSC12860  Arbutus menziesii M. Athey, D. LaConte 1970-11-28 37 Humboldt HSU campus Comment
  HSC30336  Arbutus menziesii Dale R. Gradek 1974-5-22 92 Humboldt 1 mi. E of Hwy. 101 on North Bank Rd. 30 Comment
  UC412751  Arbutus menziesii Mrs. M. H. Manning Apr. 1902 Humboldt Comment
  HSC100473  Arbutus menziesii Carl C. Marshall Jun 1887 430 Humboldt Throughout Humboldt County. Comment
  JEPS44155  Arctium minus W. L. Jepson 1921-9-10 9459 Humboldt flat at Philipsville; flat at Philipsville Comment
  CAS-BOT-BC23787  Arctostaphylos columbiana Doris K. Kildale 1928-2-17 4270 Humboldt Patrick's Point 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-BC23796  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Bald Mt. between Korbel and Redwood Creek Comment
  CAS-BOT-BC23818  Arctostaphylos columbiana Joseph P. Tracy 1940-7-14 16688 Humboldt Wilder Ridge (near Kings Peak) 762 Comment
  JEPS38945  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  JEPS38968  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA12517  Arctostaphylos columbiana var. columbiana C. B. Wolf 1934-7-3 5919 Humboldt 21 mi. from Orick on Weitchpec Rd. Comment
  RSA293169  Arctostaphylos columbiana var. columbiana Thomas W. Nelson, James Nelson, A. Nelson 1976-3-11 2267 Humboldt Beside old highway 101 along north side of Table Bluff. Comment
  RSA31954  Arctostaphylos columbiana var. tracyi A. A. Heller 1937-6-12 15918 Humboldt Along the road parallelling the ocean at Bishop ine Lodge, 3 miles north of Trinidad. Comment
  JEPS38648  Arctostaphylos glandulosa subsp. glandulosa W. L. Jepson 1932-8-8 16479 Humboldt Canoe Creek Grasshopper Peak 1066 Comment
  UC1193022  Arctostaphylos glandulosa subsp. glandulosa R. H. Neuns 1950-10-9 135 Humboldt 3 mi w Thorne; Quad 28D4 670 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
  RSA632806  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27793 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA633016  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27813 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  UCSB11333  Arctostaphylos manzanita Nelson, R. 1950-7-26 Humboldt 0.5 mile northwest of Neafus Peak 762 Comment
  HSC93506  Arctostaphylos manzanita subsp. glaucescens Gordon Leppig 1998-6-1 863 Humboldt Horse Mtn. Buck Flat, Titlow Hill Rd., at Ammon Ridge Rd. 1524 Comment
  CAS-BOT-BC24367  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-9-5 2614 Humboldt Lesseck's Peaks. 1371 Comment
  CAS-BOT-BC24373  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1925-8-13 1382 Humboldt Willoe Creek Flat. 152 Comment
  UC153967  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1909-10-7 3112 Humboldt Gans Prairie Northern Coast Ranges 609 Comment
  HSC55148  Arctostaphylos nevadensis G. L. Clifton, Griswold 1979-8-1 12071 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1173710  Arctostaphylos nevadensis Joseph P. Tracy 1939-8-16 16405 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC40026  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  RSA60536  Arctostaphylos patula John H. Thomas 1949-6-13 920 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. 1677 Comment
  UCD53433  Arctostaphylos patula A. E. Wieslander 1931-5-19 199 Humboldt Near Orleans. Comment
  CHSC591  Arctostaphylos uva-ursi 1930-3-30 Humboldt Comment
  HSC12226  Arctostaphylos uva-ursi Gary J. Stebbins 1970-4-18 68 Humboldt Along road to Samoa 1.1 mi. S of Mad River slough bridge Comment
  HSC7732  Arctostaphylos uva-ursi J. R. Woodside 1963-3-23 37 Humboldt 1 1/4 mi. N of Fairhaven Comment
  RSA70889  Arctostaphylos uva-ursi R. S. Woglum 1938-8-29 12639 Humboldt North Coast: Samoa; Samoa Peninsula separating Humboldt Bay from the Pacific Ocean. . Comment
  UC1225933  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17502 Humboldt Eureka 45 Comment
  HSC70967  Arctostaphylos viscida R. York 1980-5-17 540 Humboldt Near Le Perron Peak 1066 Comment
  HSC73249  Arctostaphylos viscida M. A. Baker 1980-5-18 1313 Humboldt Near Black Mtn. 1006 Comment
  CAS-BOT-BC48256  Arctostaphylos viscida subsp. viscida Doris K. Kildale 1926-8-15 2549 Humboldt Hoopa Mountain 792 Comment
  CAS-BOT-BC82428  Arnica discoidea Harley P. Chandler 1901-6-1 1400 Humboldt Klamath River 243 Comment
  JEPS35862  Arnica discoidea Lincoln Constance 1934-6-19 910 Humboldt s of, near summit of Grasshopper Mtn Bull Creek Flat; South Fork of the Eel River, Grasshopper Mtn. 914 Comment
  RSA12448  Arnica discoidea C. B. Wolf 1934-7-1 5845 Humboldt 2.7 mi from Briceland on rd. to Shelter Cove. 91 Comment
  CDA18244  Arrhenatherum elatius G. D. Barbe, T. C. Fuller 1974-6-19 1882 Humboldt North Coast Ranges; Arcata, US Hwy 101 at Saint Louis Rd. 12 Comment
  HSC8987  Arrhenatherum elatius L. M. Malloy 1965-5-20 29 Humboldt On Fickle Hill Rd., 2 mi. from Arcata Comment
  UC1103322  Arrhenatherum elatius Ellingwood 1946-11-1 Humboldt Arcata Bottom 12 Comment
  CAS-BOT-BC84833  Artemisia douglasiana Carl B. Wolf 1927-8-29 1203 Humboldt Near mouth of Bear River, Capetown Comment
  HSC67894  Artemisia douglasiana J. P. Smith 1973-5-26 6803 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC75260  Artemisia douglasiana J. O. Sawyer, M. A. Ericksen 1980-8-18 4054 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  JEPS37015  Artemisia dracunculus W. L. Jepson 1921-9-11 9464 Humboldt 7 or 8 mi. s. Garberville (not far from Indian Creek (Devoy Flat) Redwood Flat, w. of S. Fork Eel); South Fork Eel River Comment
  UC196572  Artemisia dracunculus Joseph P. Tracy 1916-9-5 4767 Humboldt 4 mi above mouth of South Fork Eel River 60 Comment
  HSC4741  Artemisia pycnocephala J. W. Johnson 1961-9-4 1098 Humboldt Christenson Farm, Samoa Peninsula, Arcata. Comment
  UC164826  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt opp. Eureka (sand hills of ocean beach); Samoa Comment
  JEPS103030  Artemisia suksdorfii R. Raiche, H. Forbes, A. C. Carmichael 1999-10-18 UCBG 24 Humboldt 18 miles NW of Honeydew on Mattole Rd., in sight of the ocean along the Mattole River 46 Comment
  RSA15560  Artemisia suksdorfii C. B. Wolf 1927-8-29 1220 Humboldt Devils' Gate, S of Cape Mendocino. Comment
  UC249827  Artemisia suksdorfii Joseph P. Tracy 1924-8-10 6812 Humboldt Blue Slide on Van Duzen River 91 Comment
  HSC98066  Aruncus dioicus var. acuminatus Cara Witte 2007-7-12 515 Humboldt Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1339 Comment
  JEPS45624  Aruncus dioicus var. pubescens W. L. Jepson 1902-7-11 2011 Humboldt South Fork Trinity River; Martin's Ranch Comment
  HSC98560  Asarum caudatum Cara Witte 2008-6-13 727 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  SEINET4069277 Image available Asarum caudatum O. M. Clark 1932-1 5319 Humboldt South Eureka. Comment
  UCR3539  Asarum caudatum David Whistler, H. M. Whistler 1964-7-31 640731- 8 Humboldt North Coast, at Del Norte county line on US Hwy 101 [between Orick and Klamath] 137 Comment
  CAS-BOT-BC400536  Asarum caudatum H. E. Parks 1931-3-24 0918 Humboldt Near Orick Comment
  HSC3266  Asarum caudatum D. E. Anderson 1962-3-8 1929 Humboldt E of HSC campus Comment
  HSC47656  Asarum caudatum Sheila Logan 1978-4-10 181 Humboldt Arcata Community Forest, near PSW Experimental Lab Comment
  RSA96571  Asarum caudatum E. K. Balls 1954-5-31 19496 Humboldt 4 mi. ne of Strongs Station, Van Duzen river, on Yager Road Comment
  SDSU2540  Asarum caudatum Harvey 1938-8-13 2242 Humboldt Humbolt State Redwood Park. Comment
  UC1198116  Asarum caudatum Joseph P. Tracy 1913-6-25 4343 Humboldt Dinsmore's Ranch; in valley of Van Duzen River opposite Buck Mountain 762 Comment
  HSC57099  Asarum hartwegii Overton, Butler 1979-7-25 9828 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC47953  Asclepias cordifolia Brad Klipfel 1974-7-23 475 Humboldt Horse Mtn. Comment
  UC154171  Asclepias fascicularis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC98884  Asclepias speciosa Cara Witte 2007-7-3 406 Humboldt White Oak Opening. 1242 Comment
  HSC54555  Aspidotis densa Overton, Butler 1979-7-24 9561 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CAS-BOT-BC177275  Astragalus R. C. Barneby 1954-5-19 11570 Humboldt On Henry Tosteon Ranch near Bear Butte about 4 mi. s. of Miranda 762 Comment
  RSA135343  Astragalus rattanii var. rattanii Volney Rattan 1884-1 s.n. Humboldt Big Creek. Comment
  JEPS118178  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  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
  HSC72620  Asyneuma prenanthoides J. P. Smith 1977-7-3 9236 Humboldt Six Rivers National Forest, on Rd. to Onion Lake, 4.7 mi. from junction with Hwy. 36 610 Comment
  CAS-BOT-BC69452  Athyrium filix-femina subsp. cyclosorum Doris K. Kildale 1926-8-7 2446 Humboldt Stone Lagoon. Comment
  HSC41335  Athyrium filix-femina var. cyclosorum Brad Klipfel 1974-9-7 565 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  CAS-BOT-BC170275  Atriplex confertifolia Dr. A. Kellogg; W. G. W. Harford 1868-1-1 862 Humboldt Humboldt Comment
  HSC26349  Atriplex patula T. O. Osborne 1970-6-19 74 Humboldt Flat-Iron Rock, 3/4 mi. NW Trinidad Light. Comment
  RSA424567  Atriplex patula T. S. Elias, Barbara A. Elias 1987-8-26 10623 Humboldt Fernbridge Comment
  UC1191297  Atriplex patula Malcolm A. Nobs, S. Galen Smith 1949-8-11 1341 Humboldt eastern shore Stone Lagoon; eastern shore Stone Lagoon Comment
  POM312956  Azolla filiculoides Malcolm A. Nobs, S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  RSA246915  Azolla filiculoides Robert F. Thorne, Percy C. Everett 1965-8-9 35325 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC69755  Baccharis douglasii Thomas W. Nelson 1977-9-22 3752 Humboldt At turnoff to Arcata Redwood Co. Comment
  HSC90476  Baccharis pilularis subsp. consanguinea Jean Hanson 1980-10-26 127 Humboldt Indian (Gunther) Island. In Humboldt Bay, City of Eureka. W end of island next to dike. Comment
  UC552310  Balsamorhiza deltoidea Joseph P. Tracy 1935-6-16 11282 Humboldt lower nw slope Buck Mountain 792 Comment
  RSA187521  Bellis perennis John H. Thomas 1966-3-19 11489 Humboldt Near the M. G. Goethe Grove in Prairie Creek Redwoods State Park near Highway 101, between Eureka and Crescent city. Comment
  CAS-BOT-BC128915  Berberis aquifolium Alice Eastwood; John Thomas Howell 1937-6-23 4794 Humboldt Near Dinsmore's Comment
  RSA24106  Berberis pinnata C. B. Wolf 1941-3-2 9989 Humboldt N. Coast Range. Bull Creek-Petrolia Road. 1/4 mi. s. of Panther Gap. 549 Comment
  RSA24183  Berberis pinnata C. B. Wolf 1941-3-1 9974 Humboldt Kneeland Prairie, 1/8 mi. s.e. of Kneeland school. 762 Comment
  CAS-BOT-BC412986  Bistorta bistortoides Doris K. Kildale 1925-8-16 1183 Humboldt Trinity Summit - Elk Horn Prairie 1524 Comment
  HSC3558  Borago officinalis William J. Ferlatte 1963-4-21 15 Humboldt Near 11th and A St., Arcata Comment
  HSC100314  Botrychium multifidum Lindsey Holm 2011-10-25 Humboldt Van Eck Forest near Fieldbrook. 7 Comment
  CDA42735  Botrychium multifidum T. C. Fuller 1961-9-28 7054 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC76195  Boykinia major Overton, Butler 1979-8-2 12503 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  CAS-BOT-BC420268  Boykinia occidentalis E. A. McGregor 1921-8-17 s.n. Humboldt on old abandoned road grade s.e. of Orick Comment
  CAS-BOT-BC420256  Boykinia occidentalis Henry M. Pollard 1948-7-23 s.n. Humboldt Perch Creek canyon, near Orleans Comment
  CAS-BOT-BC420272  Boykinia occidentalis L. R. Abrams 1916-7-21 6149 Humboldt Grizzly Creek Comment
  RSA245258  Boykinia occidentalis Norman Dennis 1965-6-3 145 Humboldt Big Lagoon County Park SW corner of Big Lagoon. Comment
  HSC23805  Brassica nigra R. A. Vanbianchi 1971-9-10 78 Humboldt Junction of Fieldbrook Rd. and old Hwy. 299 Comment
  HSC39796  Brassica rapa Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  RSA254779  Brickellia californica Thomas W. Nelson 1973-9-3 1124 Humboldt McKeown Ranch north of Dinsmore; along flood plain of Mad River Comment
  RSA47176  Brickellia californica Doris K. Kildale 1926-8-8 2480 Humboldt Dyerville, river bar in Eel River Comment
  UC894169  Brickellia californica Carl D. Duncan 1920-9-22 Humboldt Hoopa Valley Comment
  HSC100308  Briza maxima J. P. Smith 2011-5-4 13146 Humboldt New Navy Base Rd. SW of Samoa. 3 Comment
  SEINET9806296 Image available Briza maxima Unknown 2007-6-19 Humboldt Arcata, CA Comment
  UC184146  Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton; Northern Coast Region 30 Comment
  HSC71719  Brodiaea elegans subsp. elegans M. A. Baker 1980-6-26 2445 Humboldt Near Sims Creek 610 Comment
  HSC35816  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1920 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  UC15039  Brodiaea terrestris subsp. terrestris J. P. Tracy 1901-6-23 1159 Humboldt immediate vicinity Eureka 0 Comment
  UC666939  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1933-5-20 12249 Humboldt 1 mi w Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  UC1145160  Bromus carinatus var. carinatus Joseph P. Tracy 1950-6-15 18786 Humboldt 7 mi n of Harris (Mail Ridge); Mail Ridge 1036 Comment
  UC37600  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-19 5677 Humboldt Hupa Mountain Comment
  HSC9283  Bromus diandrus S. R. Johnson 1965-4-16 38 Humboldt 1.5 mi. N of Luffenholtz Beach. Comment
  HSC9284  Bromus diandrus R. V. Papike 1962-5-25 33 Humboldt Arcata 91 Comment
  UCD58510  Bromus diandrus Joseph P. Tracy 1950-6-15 18775 Humboldt Mail Ridge. North of Harris 5 miles. 944 Comment
  BLMAR41  Bromus diandrus Brad Barr 1982-6-21 41 Humboldt King range, hidden valley enclosure Comment
  HSC9239  Bromus hordeaceus T. L. Ackerman 1964-5-7 41 Humboldt 1.5 mi. W from Sweesey dam Comment
  CAS-BOT-BC162446  Bromus laevipes L. R. Abrams 1918-6-16 7143 Humboldt Willow Creek. Comment
  UCD59657  Bromus secalinus var. velutinus G. T. Bateham 1921-8-7 s.n. Humboldt Showers Pass. Comment
  RSA126835  Bromus sterilis H. S. Yates 1936-5-17 5714 Humboldt Near Burr valley; South Fork Pk. 915 Comment
Read comments
Apr 6 2017
  UC1145181  Bromus sterilis Joseph P. Tracy 1950-6-15 18776 Humboldt Mail Ridge 944 Comment
  HSC39981  Cakile maritima Linda M. Barker 1976-4-30 1418 Humboldt 3 mi. W of Arcata Comment
  OBI36381  Cakile maritima David J. Keil 1983-7-1 17284 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  UCD114940  Cakile maritima Linda M. Barker 1976-4-30 1418 Humboldt 3 miles west of Arcata. Comment
  UCR121764  Cakile maritima George K. Helmkamp, E. A. Helmkamp 2001-7-8 7025 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  RSA232640  Cakile maritima var. maritima Larry E. DeBuhr, P. Everett 1972-5-22 608 Humboldt On the beach at Prairie Creek. Redwoods Sate Park Comment
  HSC74072  Calamagrostis foliosa Joyce Walker 1980-9-3 Humboldt Shipman Creek Comment
  UC1103290  Calamagrostis koelerioides Joseph P. Tracy 1934-7-18 13408 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC76535  Calamagrostis nutkaensis D. K. Imper 1981-7-21 897 Humboldt Near Table Bluff 38 Comment
  SEINET10521063  Calamagrostis nutkaensis A. Arthur Heller 1924-7-24 Heller 13880 Humboldt Sandy soil in shaded places on the bluff at Numboldt County camp 7 miles south of Trinidad. Comment
  HSC17635  Calandrinia ciliata R. T. Forester 1963-5-6 48 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  HSC64308  Calandrinia ciliata J. P. Smith, J. O. Sawyer 1976-5-2 8617 Humboldt 1.5 mi. N of Willow Creek on Hwy. 96 61 Comment
  HSC95654  Calandrinia ciliata Andrea Pickart 2002-4-3 43 Humboldt Lanphere Dunes 25 Comment
  UC1103693  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1936-8-17 15150 Humboldt 2.5 mi s Field's Landing (near Still Ranch) 6 Comment
  UC144094  Callitriche marginata J. P. Tracy 1909-5-23 2975 Humboldt At the Connick Claim, 4 mi SE of Eureka 0 Comment
  CHSC110706  Callitriche stagnalis Dean Wm. Taylor 2004-6-24 19136 Humboldt Clear Lake, along Titlow Hill Road. 1493 Comment
  HSC57987  Calocedrus decurrens G. L. Clifton, Griswold 1979-7-31 11728 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC488620  Calochortus elegans var. nanus Doris Kildale Gillespie 1931-6-7 10586 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC15346  Calochortus tolmiei H. E. Parks, J. P. Tracy 1930-5-25 790 Humboldt Laribee Valley 762 Comment
  CAS-BOT-BC494359  Calochortus tolmiei W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  UC198648  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  UC1222581  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 Comment
  CAS-BOT-BC273318  Calycadenia fremontii Joseph P. Tracy 1938-8-14 16117 Humboldt South Fork of Trinity River 304 Comment
  UC1196476  Calypso bulbosa Joseph P. Tracy 1949-6-6 18303 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC14970  Calypso bulbosa Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5760 Humboldt North Coast Ranges, Box Camp, Trinity Summit Trail Box Camp; North Coast Ranges, , Trinity Summit Trail Comment
  HSC44550  Calyptridium monospermum Brad Klipfel 1973-7-15 169 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC54669  Calyptridium monospermum Overton, Butler 1979-7-25 9906 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  UC1198376  Calyptridium monospermum Joseph P. Tracy 1933-7-11 12704 Humboldt Grouse Mountain 1524 Comment
  UC13637  Calyptridium umbellatum Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  UC673024  Calyptridium umbellatum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8946 Humboldt summit near Blake Lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  SEINET200998  Calystegia J. P Tracy 1917-5-30 4803 Humboldt Near Little River Comment
  UC449948  Calystegia occidentalis subsp. occidentalis Mrs. M. H. Manning 1901-1 Humboldt near Hupa; near Hupa Comment
  UC162767  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1911-7-6 3342 Humboldt mountain slopes along road between Three Creeks and Mouth Willow Creek; Northern Coast Ranges, btwn Three Creeks and Willow Creek 762 Comment
  RSA21032  Calystegia soldanella C. B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  RSA394825  Calystegia soldanella E. A. Purer 1932-7-27 4140 Humboldt Samoa Comment
  SEINET3991735  Camassia quamash Unknown 1910-5-15 Humboldt Immediate vicinity of Eureka. 152 Comment
  HSC16445  Camissonia cheiranthifolia S. J. Hawks 1965-5-14 60 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  UCR122368  Camissonia cheiranthifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7021 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC62912  Camissonia cheiranthifolia J. M. DiTomaso 1979-4-22 912 Humboldt Big Lagoon, 8 mi. N of Trinidad Comment
  UC741172  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. and S. K. Harris, Clarence Crane Jr. 1939-8-23 970 Humboldt Samoa Comment
  CAS-BOT-BC160233  Camissoniopsis cheiranthifolia subsp. cheiranthifolia T. Mosquin; L. Mosquin 1962-7-19 4489 Humboldt 8.8 miles north of Big Lagoon along US highway 101 to Oregon Comment
  SEINET10939033  Campanula prenanthoides Pollard 1948-8-4 POLLARD s.n. Humboldt ORLEANS MTN TRAIL 4000 Comment
  HSC34270  Campanula scouleri K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  SEINET10463440  Campanula scouleri Willis L. Jepson 1902-7-30 Jepson 2128 Humboldt THREE CREEKS TO REDWOOD CREEK 914 Comment
  SEINET10463703  Campanula scouleri Baker 1947-8-10 Baker 11901 Humboldt 15 mi NE of Hoopa near end of Forest Rd. Fir forest. 1372 Comment
  UC562695  Capsella bursa-pastoris Joseph P. Tracy 1936-6-17 14968 Humboldt Burr Valley, on nw side of Buck Mountain Burr Valley; Buck Mountain, Burr Valley 1066 Comment
  HSC44638  Capsella bursa-pastoris Diane L. Reed 1978-5-7 67 Humboldt E fork of Willow Creek, 34 mi. from Hwy. 101 on Hwy. 299 Comment
  HSC6683  Cardamine californica Lincoln Constance, R. C. Rollins 1942-5-20 2998 Humboldt Eel River, 1 mi. N of Pepperwood 46 Comment
  UCD114184  Cardamine californica Joseph M. DiTomaso 1976-3-28 358 Humboldt just east of summit on Highway 299, 8 miles west of Willow Creek. 762 Comment
  RSA167405  Cardamine californica var. integrifolia Joseph P. Tracy 1950-5-7 18651 Humboldt On the Redwood House Road, S of Redwood House 1 mile, on Yager Slope. (Head of South Yager Creek). Comment
  HSC6639  Cardamine oligosperma S. J. Hawks 1965-3-12 4 Humboldt 0.5 mi. W of Fairhaven Comment
  UC275269  Cardamine oligosperma Joseph P. Tracy 1923-4-15 6183 Humboldt at Berry's Northern Coast Ranges, , at Berry's (Redwood Creek) 274 Comment
  HSC91607  Cardionema ramosissimum E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  UCD129920  Carduus tenuiflorus W. A. Williams 1951-6-1 s.n. Humboldt near Capetown. Comment
  CAS-BOT-BC18270  Carex A. A. Heller 1923-7-10 13797 Humboldt Along the Eel River between Scotia and Pepperwood in the redwood belt. Comment
  HSC102200  Carex athrostachya M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1114 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  UC1103083  Carex athrostachya Joseph P. Tracy 1933-7-25 12844 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  JEPS109248  Carex bolanderi D. W. Taylor 2007-7-11 20160 Humboldt Six Rivers National Forest, White Oak Opening, along Forest Hwy 1. Comment
  UC194820  Carex bolanderi Joseph P. Tracy 1913-7-20 4371 Humboldt Three Creeks 1066 Comment
  POM247168  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt 2 miles SW of top, Salmon Summit. 1768 Comment
  HSC104137  Carex brevicaulis G. Durant, G. Jaeger 2005-5-16 19051 Humboldt Comment
  JEPS25962  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon 3 Comment
  JEPS26006  Carex canescens Joseph P. Tracy 1939-7-9 16318 Humboldt at Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  HSC71669  Carex concinnoides Gail Newton 1980-6-16 200 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC34977  Carex densa Joseph Prince Tracy 1935-5-25 13855 Humboldt Fort Seward. 106 Comment
  CAS-BOT-BC19968  Carex exsiccata Milo S. Baker 1927-8-21 24706 Humboldt Near Bald Mountain. 914 Comment
  HSC103369  Carex feta Thomas W. Nelson, Jane Nelson 1982-7-11 7115 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  SEINET7558590 Image available Carex feta Alice Eastwood, John Thomas Howell 1937-6-22 4743 Humboldt Near Blocksburg. Comment
  CAS-BOT-BC20873  Carex globosa Joseph Prince Tracy 1929-6-3 8605 Humboldt North Coast Ranges. Willow Creek Canyon. Mouth of East Fork. 487 Comment
  SEINET10752907  Carex globosa Joseph P. Tracy 1932-4-23 Tracy 9832 Humboldt Englewood. 91 Comment
  JEPS25999  Carex gracilior Joseph P. Tracy 1936-5-29 14826 Humboldt on ridge e Orick; Gans Prairie 548 Comment
  CAS-BOT-BC146591  Carex gynodynama H. D. Ripley; R. C. Barneby 1945-6-16 6812 Humboldt 2.5 miles N. of Miranda Comment
  JEPS25973  Carex harfordii Joseph P. Tracy 1935-6-8 13938 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC21754  Carex hassei Joseph Prince Tracy 1941-5-11 16868 Humboldt Big Lagoon. 152 Comment
  CAS-BOT-BC28163  Carex hoodii Joseph Prince Tracy 1932-7-11 10410 Humboldt trinity Summit, Open places at Corral Prairie. Comment
  UC562335  Carex hoodii Joseph P. Tracy 1932-7-11 10410 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC98937  Carex interior Cara Witte 2008-7-30 971 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  CAS-BOT-BC7791  Carex laeviculmis Doris K. Kildale 1931-5-10 10674 Humboldt Snow Camp Comment
  CAS-BOT-BC7792  Carex laeviculmis Joseph Prince Tracy 1930-7-16 8985 Humboldt South Fork Mountain. At McKay Camp. 1676 Comment
  CAS-BOT-BC28501  Carex lenticularis var. limnophila Robert F. Thorne 1965-9-19 35461 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  RSA88654  Carex leptopoda Joseph P. Tracy 1935-6-8 13937 Humboldt Eureka. 61 Comment
  CAS-BOT-BC31612  Carex luzulina var. ablata Doris K. Kildale 1931-5-10 10554 Humboldt Snow Camp. Comment
  HSC93773  Carex lyngbyei Gordon Leppig 1996-5-17 333 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, Butcher Slough, E side about 20 m N of Interpretive Center Parking lot, just W of South I St. 1 Comment
  UC1133402  Carex lyngbyei H. S. Yates 1936-6-23 5861 Humboldt 1 mi w Bayside; Eureka Quadrangle 0 Comment
  HSC102153  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1061 Humboldt Patterson Meadows 1555 Comment
  SEINET4292167 Image available Carex microptera Unknown 2003-1 7920 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5km northeast of the top of Grouse Mountain. Comment
  HSC102227  Carex multicostata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1148 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  RSA167282  Carex multicostata Joseph P. Tracy 1950-7-25 19064 Humboldt South Fork Mountain. Openings in fir forest near McKay camp. 1677 Comment
  JEPS80023  Carex nudata Joseph P. Tracy 1911-6-4 3220 Humboldt along Little River 5 mi from coast; Northern Coast Region, Little River 121 Comment
  CAS-BOT-BC119539  Carex nudata W. R. Dudley 1899-6-21 s.n. Humboldt Bluffs below forks of Eel River. Comment
  CAS-BOT-BC119389  Carex obnupta T. G. W. s.n. Humboldt Arcata Comment
  HSC86334  Carex obnupta Rudolf W. Becking 1988-4-9 Humboldt South Spit, opposite Fields Landing Comment
  HSC76819  Carex obnupta L. P. Janeway 1982-8-7 112 Humboldt Along Prairie Creek, ~5 mi. N of Prairie Creek Campground along Hwy. 101 183 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
  HSC98947  Carex pachystachya Cara Witte 2008-7-2 810 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC1103094  Carex pachystachya Joseph P. Tracy 1923-6-24 6352 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC562665  Carex pachystachya Joseph P. Tracy 1932-6-19 10242 Humboldt opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 762 Comment
  UC709318  Carex pachystachya Joseph P. Tracy 1938-6-15 15934 Humboldt vicinity Carlotta 30 Comment
  UC562258  Carex pansa Joseph P. Tracy 1935-7-18 14104 Humboldt next to Table Bluff (around Humboldt Bay); around Humboldt Bay 3 Comment
  UC1103624  Carex scopulorum var. bracteosa Joseph P. Tracy 1935-7-26 14263 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  HSC104335  Carex serratodens James Regan, Humboldt Redwood Co., LLC Jun 2011 32 Humboldt Kneeland, near Kneeland Airport 854 Comment
  UC562269  Carex stipata var. stipata Joseph P. Tracy 1931-5-17 9422 Humboldt opposite mouth Willow Creek (Lack Pond); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC562559  Carex subfusca Joseph P. Tracy 1935-6-23 13984 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  CAS-BOT-BC116678  Carex subfusca Joseph Prince Tracy 1935-7-23 14141 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  JEPS63534  Carex tumulicola W. L. Jepson 1932-8-9 16535 Humboldt Bull Creek 106 Comment
  UC1152068  Carex unilateralis Joseph P. Tracy 1950-7-6 19011 Humboldt On the Albee Road; Buck Mountain; 3 miles south of Burr Valley 1158 Comment
  CHSC90267  Carex utriculata Thomas W. Nelson; Jane P. Nelson 1987-6-11 8600 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  UC249742  Carex vesicaria Joseph P. Tracy 1924-7-4 6705 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  POM264409  Carex viridula H. E. Parks 1935-09 5214 Humboldt Dry Lagoon, South of Orick Comment
  CHSC97051  Carex viridula subsp. viridula Gordon Leppig 1997-8-3 639 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common on northern edge. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  CAS-BOT-BC249130  Castilleja affinis Doris K. Kildale 1927-6-26 3597 Humboldt Patrick's [Patricks] Point Comment
  UC1196862  Castilleja affinis subsp. affinis Joseph P. Tracy 1908-6 2812 Humboldt opposite Buck Mountain; North Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS21129  Castilleja affinis subsp. litoralis Myrtle Paulson 1918-4-28 Humboldt Eureka Comment
  JEPS35842  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 1964-8-2 8988 Humboldt just n Table Bluff lighthouse (s of Humboldt Bay) Comment
  HSC20838  Castilleja attenuata R. T. Forester 1963-5-6 43 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  JEPS76854  Castilleja exserta subsp. latifolia L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-29 4825 Humboldt Samoa dunes Samoa Comment
  UC604630  Castilleja exserta subsp. latifolia Joseph P. Tracy 1938-7-12 16058 Humboldt Table Bluff; w of lighthouse 6 Comment
  JEPS8743  Castilleja foliolosa Joseph P. Tracy 1934-7-9 13329 Humboldt 5 mi s Harris; Mail Ridge 762 Comment
  JEPS10639  Castilleja lacera Lincoln Constance 1934-6-25 929 Humboldt Englewood, on e side of road, across road from Collins' Englewood Campground South Fork Eel River, Bull Creek Region, Englewood Comment
  HSC56208  Castilleja miniata G. L. Clifton, Griswold 1979-8-2 12210 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC71608  Castilleja pruinosa Gail Newton 1980-6-16 198 Humboldt Near Onion Mtn. 1280 Comment
  HSC72484  Castilleja pruinosa J. P. Smith, J. O. Sawyer 1973-5-12 6706 Humboldt 10.4 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS25752  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1908-6 2849 Humboldt opposite Buck Mountain (valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC1502112  Ceanothus R. Sutherland 1976-1-30 4 .30.76 Humboldt Pt. Delgada Quad. 990 Comment
  HSC41300  Ceanothus arcuatus Brad Klipfel 1974-7-27 499 Humboldt Horse Mtn. Comment
  UC1198032  Ceanothus cordulatus Joseph P. Tracy 1935-7-14 14092 Humboldt near Clear Lake (ridge); Northern Coast Ranges 1524 Comment
  CAS-BOT-BC49319  Ceanothus cuneatus Joseph P. Tracy 1938-6-13 15905 Humboldt Horse Mountain 1432 Comment
  HSC101665  Ceanothus foliosus var. foliosus J. P. Smith, J. O. Sawyer 2011-4-23 13126 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  HSC37599  Ceanothus foliosus var. foliosus R. Sutherland 1975-7-7 2 .7775 Humboldt Slopes of Eubanks Creek 274 Comment
  HSC92755  Ceanothus foliosus var. foliosus J. R. McFarland 1997-4-10 Humboldt 3.7 mi N on King Range Rd. from Shelter Cove Rd. near peak 602 Comment
  UC1193319  Ceanothus incanus R. H. Neuns 1950-7-13 130 Humboldt 3 miles south of Alder Point 548 Comment
  UCD112174  Ceanothus incanus T. I. Storer 1931-7-1 2218 Humboldt near Ferndale. Comment
  SBBG116570  Ceanothus integerrimus D. Wilken with E. Painter 2003-7-16 16151 Humboldt State Hwy 96, between Muddy and Weitchpec Crks, just E of Weitchpec 70 Comment
  UCR270274  Ceanothus integerrimus John F. Emmel 2003-7-30 1800 Humboldt near southeast boundary of Redwood National Park, Bald Hills Road, 19.5 road miles SE of Hwy 101 960 Comment
  CAS-BOT-BC51214  Ceanothus parryi Doris K. Kildale 1927-5-15 3302 Humboldt Petrolia Comment
  HSC36682  Ceanothus parryi R. Sutherland 1975-5-30 5 .30575 Humboldt N of Briceland, Redwood Creek near rd. 177 Comment
  JEPS42289  Ceanothus parryi Lincoln Constance 1934-5-24 632 Humboldt bordering lower Look Prairie on E side South Fork Eel River (Bull Creek Region) 121 Comment
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Mar 24 2013
  UC18401  Ceanothus parryi Bolander Jun 1867 6572 bis Humboldt Comment
  CAS-BOT-BC51208  Ceanothus parryi W. R. Dudley 1899-6-1 s.n. Humboldt Near grade descending from the hills to Eel River Comment
  CAS-BOT-BC52043  Ceanothus prostratus Joseph P. Tracy 1927-5-15 8056 Humboldt Hoopa Mountain. On road West from Hoopa Valley, in open forest of yellow and sugar pines 914 Comment
  HSC44398  Ceanothus pumilus Brad Klipfel 1975-5-24 633 Humboldt Horse Mtn. Comment
  RSA25754  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11089 Humboldt Summit of Trinidad Head. 46 Comment
  RSA31956  Ceanothus thyrsiflorus A. A. Heller 1937-6-11 15916 Humboldt Sandy bluff above Patric Point State Park near Big Lagoon Comment
  UC1071395  Ceanothus thyrsiflorus G. T. Nordstrom Jul 1934 1426 Humboldt 1 mi nne Orick; Orick Quad. 3 Comment
  CDA15840  Centaurea diffusa P. Haggard 1999-10-18 PDR 1170400 Humboldt North Coast; near Blue Lake. 0 Comment
  RSA167189  Centaurea solstitialis Joseph P. Tracy 1943-11-28 17452 Humboldt Eel River bar at mouth of Van Duzen near Alton Comment
  UC1198631  Centaurium muehlenbergii Joseph P. Tracy 1918-7-1 4965 Humboldt from South Fork to Scotia (Holmes Flat, along Eel River); Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  CDA38373  Centaurium tenuiflorum E. C. Whitney 1976-9-7 s.n. Humboldt Loleta. 0 Comment
  UC275461  Centromadia fitchii Joseph P. Tracy 1925-8-23 7247 Humboldt Harris Northern Coast Ranges 914 Comment
  HSC59895  Cephalanthera austiniae M. A. Baker 1979-6-28 943 Humboldt S of Mill Creek Comment
  UC1223235  Cerastium arvense Joseph P. Tracy 1950-6-15 18820 Humboldt 7 mi. n. Harris (Huestis Rock, on n.e. side of Ridge); Mail Ridge, Huestis Rock Comment
  UC177241  Cerastium arvense Joseph P. Tracy 1912-6-9 3660 Humboldt Alton Northern Coast Region, Alton 30 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
  HSC39059  Cerastium glomeratum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2645 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC100414  Cerastium nutans Carl C. Marshall Jun 1887 446 Humboldt Throughout Humboldt County. Comment
  CAS-BOT-BC166039  Chamerion angustifolium subsp. circumvagum Clarence R. Quick 1959-7-24 59 -30 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC12553  Chamerion angustifolium subsp. circumvagum D. La Conte 1970-7-7 28 Humboldt Comment
  HSC76626  Chamerion angustifolium subsp. circumvagum Teresa Prendusi 1981-7-24 490 Humboldt Near Whiteys Peak 1585 Comment
  HSC70802  Cheilanthes gracillima Gail Newton 1980-7-24 1780 Humboldt Near Somes Mtn. 1615 Comment
  POM182347  Cheilanthes gracillima Joseph P. Tracy 1912-7-26 3841 Humboldt Kneeland Prairie 762 Comment
  UCD97746  Chenopodium album Linda M. Barker 1976-6-22 1629 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UC179956  Chenopodium murale Joseph P. Tracy 1914-6-26 4519 Humboldt Eureka Northern Coast Region 0 Comment
  HSC54858  Chimaphila menziesii G. L. Clifton, Griswold 1979-7-25 10754 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC54505  Chimaphila umbellata Overton, Butler 1979-7-23 9403 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC55227  Chimaphila umbellata G. L. Clifton, Griswold 1979-8-2 12427 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SBBG83414  Chimaphila umbellata R. Gankin 1965-8-5 546 Humboldt Kings Mtn Rd, 2.2 mi E of rd end, Pacific Range Wilderness Area Comment
  UCD117387  Chimaphila umbellata H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  RSA467017  Chimaphila umbellata subsp. occidentalis H. M. Pollard 1948-7-31 237 Humboldt Orleans Mt. 1372 Comment
  HSC99490  Chrysolepis chrysophylla var. chrysophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 149 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
  UC1119747  Cichorium intybus H. L. Person 1932-8-7 Humboldt Korbel Eureka Comment
  UC642242  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  UC212881  Cinna latifolia Joseph P. Tracy 1919-9-18 5255 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1524 Comment
  HSC38627  Circaea alpina subsp. pacifica D. E. Anderson, J. P. Smith 1971-6-18 - 1101 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  HSC70726  Circaea alpina subsp. pacifica Gail Newton 1980-7-14 1521 Humboldt Near Deadman Ridge 1097 Comment
  UCR131740  Circaea alpina subsp. pacifica C. B. Wolf 1937-8-13 09253 Humboldt North Coast Range, 11 miles east of Hoopa Valley on new road toward Trinity Summit 1584 Comment
  UC144064  Circaea alpina subsp. pacifica Joseph P. Tracy Jun 27 1908-Jun 30 1908 2716 Humboldt opposite Buck Mt. (Van Duzen R. Valley); Northern Coast Ranges, Van Duzen R. Valley 762 Comment
  HSC57013  Cirsium arvense Overton, Butler 1979-7-24 57013 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  JEPS59311  Cirsium arvense W. L. Jepson 1936-8-12 17891 Humboldt South Fork of Eel River, Philipsville Comment
  CDA20074  Cirsium arvense E. Finley 2002-10-9 PDR 1035511 Humboldt Northwestern California; Hwy 36 at MM 31.08 E-bound. 0 Comment
  POM289624  Cirsium arvense Lyman Benson 1928-7-12 482 Humboldt Weott Ranger Station, Seaward N. Coast Mt. Range, South Fork Eel River Watershed. 61 Comment
  UC169293  Cirsium brevistylum Joseph P. Tracy 1912-7-14 3748 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC284440  Cirsium brevistylum L. R. Abrams 1916-7-18 6082 Humboldt Between Cercata and Trinidad Comment
  UCD130610  Cirsium douglasii Gordon Leppig 1998-6-1 879 Humboldt Horse Mountain, Titlow Hill Rd. 1219 Comment
  CAS-BOT-BC278060  Cirsium douglasii var. breweri Alice Eastwood; John Thomas Howell 1937-6-24 4865 Humboldt 5 miles east of Berry Summit Comment
  SEINET11263070  Cirsium douglasii var. canescens Thomas Nelson 1976-7-9 2987 Humboldt Beside 1S07 just west of summit.; 0 1585 Comment
  UCD130619  Cirsium douglasii var. douglasii Collector Unknown Date Unknown s.n. Humboldt Horse Mt. Comment
  CDA15025  Cirsium occidentale var. candidissimum B. Villegas 1998-8-5 s.n. Humboldt North Coast Ranges; Nr. Berry Summit on Titlow Hill Rd, 3.9 mi. S of Hwy 299. Comment
  JEPS59231  Cirsium occidentale var. candidissimum W. L. Jepson 1902-8-5 2148 Humboldt Eltersburg to Briceland Comment
  RSA0070876  Cirsium remotifolium Joseph P. Tracy 1921-7-31 5860 Humboldt Table Bluff. 121 Comment
  UC1199223  Cirsium remotifolium var. rivulare Joseph P. Tracy 1930-7-6 8847 Humboldt Iaqua 609 Comment
  HSC68157  Cirsium vulgare J. P. Smith 1971-10-6 4972 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC11999  Cirsium vulgare D. La Conte 1970-7-11 27 Humboldt Comment
  UC1122363  Clarkia amoena H. S. Yates 1936-6-23 5875 Humboldt 4 mi nne Cathays Peak; Dyerville Quadrangle Comment
  UC1222855  Clarkia amoena Joseph P. Tracy 1950-6-8 18751 Humboldt s of point Cape Mendocino; Devil's Gate 3 Comment
  UC144096  Clarkia amoena Joseph P. Tracy Jun 27 1908-Jun 30 1908 2757 Humboldt nw slope Buck Mountain (at bridge across river); Northern Coast Ranges, Little Van Duzen River 609 Comment
  CAS-BOT-BC160969  Clarkia amoena subsp. amoena P. A. Munz 1936-8-10 14339 Humboldt Little Van Duzen River, 15 mi. east of Bridgeville Comment
  HSC16279  Clarkia concinna subsp. concinna B. D. Rogers, William J. Ferlatte 1966-6-15 2105 Humboldt Larabee Valley 762 Comment
  RSA108399  Clarkia gracilis subsp. gracilis Harlan Lewis, M. Lewis 1947-6-13 420 Humboldt Highway 36, 2.3 miles east of south fork of Van Duzen River (bridge 4 - 119) Comment
  UC1196983  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1912-7-4 3730 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC172514  Clarkia purpurea subsp. quadrivulnera Paul F. Covel 1937-7-11 888 Humboldt Near Garberville Comment
  HSC98618  Clarkia rhomboidea Cara Witte 2008-7-2 795 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  HSC33074  Claytonia exigua subsp. exigua Thomas W. Nelson, Jim Ackerman 1974-5-14 1263 Humboldt Beside the old Samoa-Crannel railbed N of Samoa, along the Mad River Slough Comment
  HSC17755  Claytonia exigua subsp. exigua D. E. Anderson 1963-5-19 2467 Humboldt About 1 mi. S of Kneeland school Comment
  UC672996  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1937-3-17 15285 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC17740  Claytonia rubra subsp. rubra H. E. Parks, J. P. Tracy 1930-5-25 876 Humboldt Laribee Valley 762 Comment
  HSC98515  Claytonia rubra subsp. rubra Cara Witte 2007-5-8 6 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  HSC64327  Claytonia sibirica J. P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  POM118717  Claytonia sibirica Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1028307  Claytonia sibirica George B. Rossbach 1955-6-8 263 Humboldt Prairie Creek Redwoods State Park (Route 101) Comment
  UCD100897  Claytonia sibirica James P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  CAS-BOT-BC91327  Clematis lasiantha Lincoln Constance; Reed C. Rollins 1942-5-11 2873 Humboldt North Coast Ranges. Hoopa Valley 6 miles south of Hoopa. 121 Comment
  UC465903  Clematis ligusticifolia P. E. Goddard 1907-7-14 b 126 Humboldt by Mad River Mad River Comment
  CAS-BOT-BC499342  Clintonia andrewsiana Elizabeth Parsons Hawver 1915-6-1 s. n. Humboldt Unspecified Comment
  HSC15450  Clintonia andrewsiana Francis Winter 1960-4-23 Humboldt 1.0 mi W of Angel Ranch on Korbel-Maple Creek Rd. 244 Comment
  HSC100555  Clintonia uniflora Carl C. Marshall Jun 1886 316 Humboldt Trail E of Hoopa. Comment
  HSC102018  Clintonia uniflora M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 919 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC54022  Clintonia uniflora Griswold, Butler 1979-7-12 7181 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC146212  Clintonia uniflora Joseph P. Tracy 1908-6-27 2733 Humboldt at foot of Buck Mountain, along the Van Duzen River Van Duzen River; Northern Coast Ranges, Buck Mountain, Van Duzen River 304 Comment
  UCD114621  Coincya monensis subsp. recurvata Jim Belsher 1997-2-13 1 Humboldt collected in the lot East Southeast of Manila Community Services District sewage pump station. 6 Comment
  CAS-BOT-BC238026  Collinsia Doris Kildale Gillespie 1931-6-7 10601 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  SBBG66416  Collinsia grandiflora H. E. Parks, J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley (Larabee Valley) 762 Comment
  UC41803  Collinsia grandiflora C. C. Marshall 1888-1 Humboldt unknown Comment
  UC41804  Collinsia grandiflora W. C. Blasdale 1896-6-8 Humboldt Graham's Comment
  HSC102603  Collinsia linearis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1590 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC65475  Collinsia linearis Gail Newton 1980-6-24 580 Humboldt Near Ladder Rock 1570 Comment
  RSA30612  Collinsia linearis Lincoln Constance, R. C. Rollins 1942-5-12 2888 Humboldt Klamath River 10 miles northeast of Weitchpec. 122 Comment
  UC727681  Collinsia linearis Milo S. Baker 1946-6-15 11486 Humboldt near Head of Willow Creek Canyon (Trinity Highway); Trinity Highway 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
  UC582465  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1932-5-10 9932 Humboldt Bear River Ridge; Northern Coast Ranges, Bear River Ridge 609 Comment
  UC1197855  Collomia grandiflora Joseph P. Tracy July, 1908 2785 Humboldt ridge between Van Duzen and Mad Rivers at Low Gap (Humboldt and Trinity counties); Northern Coast Ranges 457 Comment
  HSC16924  Collomia heterophylla D. E. Anderson 1962-7-17 2274 Humboldt Camp Bauer, 1/4 mi. E of Korbel, along N Fork of Mad River Comment
  HSC71793  Collomia heterophylla Gail Newton 1980-6-16 177 Humboldt Near Monks Camp 109 Comment
  HSC45406  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1977-7-4 3609 Humboldt Along road N from Alder Springs 1524 Comment
  HSC56227  Collomia tracyi G. L. Clifton, Griswold 1979-8-2 12281 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC74404  Collomia tracyi Gail Newton 1980-6-28 745 Humboldt Near Mad River Butte. 1536 Comment
  JEPS109809  Collomia tracyi Dean W. Taylor 2004-6-24 19133 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit 1310 Comment
  UC1197863  Collomia tracyi Joseph P. Tracy 1932-7-13 10517 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  UC978530  Collomia tracyi Joseph P. Tracy 1939-8-5 16373 Humboldt sand bars along river Van Duzen River, Dinsmore's 737 Comment
  CAS-BOT-BC180241  Comandra umbellata subsp. californica Doris K. Kildale 1926-5-2 1867 Humboldt Willow Brook, rocky terrace on Trinity River 152 Comment
  HSC23830  Conium maculatum R. A. Vanbianchi 1971-11-19 102 Humboldt Along Fieldbrook Rd., 3 mi from junction with Hwy 299 Comment
  HSC49219  Coptis laciniata J. O. Sawyer 1977-4-23 2846 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  UC14983  Corallorhiza maculata J. Burtt Davy and W. C. Blasdale 1899-6-18 5622 Humboldt Bald Mt. Comment
  HSC16580  Corallorhiza maculata D. E. Anderson 1965-6-1 3780 Humboldt Near Brush Mtn. lookout 1189 Comment
  UC14984  Corallorhiza maculata Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  HSC48977  Cordylanthus maritimus subsp. palustris Jim Bartel 1979-7-17 Humboldt Tributary to Butcher's Slough, within proposed Arcata Marsh Enhancement Project, adjacent to Northwestern Pacific Railroad. Comment
  HSC95093  Cordylanthus maritimus subsp. palustris Andrea Pickart 2002-6-27 123 Humboldt Mad River Slough and Dunes, N of parking area at N end of access road. 0 Comment
  JEPS70115  Cordylanthus maritimus subsp. palustris L. R. Heckard 1972-8-9 3152 Humboldt Margin of Humboldt Bay 2 mi s of Arcata; Humboldt Bay Comment
  HSC58546  Cordylanthus tenuis subsp. viscidus Overton, Butler 1979-7-24 9568 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  UC1239004  Cordylanthus tenuis subsp. viscidus Freed W. Hoffman 1949-7-14 3063 Humboldt sw Mt. Lassic Lookout; North Coast Ranges, Pine Point Ridge Comment
  HSC100234  Cordyline australis J. P. Smith 2010-5-29 12891 Humboldt Eureka; Near intersection of West Del Norte St. and Railroad Ave. Comment
  OBI16659  Corethrogyne filaginifolia Joseph P. Tracy 1950-6-18 18764 Humboldt Near Petrolia. Hills between town and Ocean. 1 mi W of town Comment
  SD38604  Corethrogyne filaginifolia var. filaginifolia Edith A. Purer 1932-7-30 4675 Humboldt Sand dunes south of Oric. Comment
  UC205460  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-BC212009  Cornus nuttallii Greg de Nevers 2001-4-17 12247 Humboldt Humboldt Redwoods State Park 91 Comment
  CAS-BOT-BC212011  Cornus nuttallii Doris K. Kildale 1926-3-28 1688 Humboldt Lord Ellis Road near Bald Mt. junction 609 Comment
  HSC6407  Cornus nuttallii Jack Rockwell 1962-4-29 43 Humboldt E bank of Redwood Creek, near Hwy. 299 549 Comment
  HSC6410  Cornus nuttallii Francis Winter 1960-4-24 Humboldt 2 mi. N of Hwy. 299, on Redwood Creek Rd. 396 Comment
  RSA15577  Cornus nuttallii C. B. Wolf 1927-8-28 1165 Humboldt In the valley of the Hoopa Indian Reservation. Comment
  UC35022  Cornus nuttallii Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  UC1051594  Cornus sericea subsp. sericea Joseph P. Tracy 1948-9-2 18201 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  HSC6423  Cornus sessilis H. E. Parks, S. T. Parks 1941-7-5 11492 Humboldt Horse Linto Creek. Comment
  HSC81816  Coronopus didymus Kenneth Clark 1981-5-2 1361 Humboldt Point Delgada, Mario's Marina 15 Comment
  UC1225940  Corylus californica Joseph P. Tracy 1946-8-25 17639 Humboldt Table Bluff, N slope; along Hookton road 9 Comment
  HSC37416  Corylus cornuta subsp. californica Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 509 Humboldt Along Lost Man Creek. 38 Comment
  RSA33407  Corylus cornuta var. californica Doris K. Kildale 1927-3-25 3004 Humboldt Humboldt Hill Comment
  SEINET200866  Cotula australis J. P. Tracy 1900-5-26 804 Humboldt Immediate Vicinity of Eureka, Comment
  HSC78086  Cotula australis L. P. Janeway, Amy Eisenberg 1984-4-24 744 Humboldt On N spit of Humboldt Bay; SE side of intersection of Samoa and Fairhaven Rds. and E of the willow patch Comment
  HSC5426  Cotula coronopifolia R. Spellenberg 1964-6-15 412 Humboldt Along egde of Humboldt Bay, on the south side of Arcata Comment
  UC667078  Crassula aquatica Joseph P. Tracy 1935-5-30 13919 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC291482  Crepis capillaris M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  UC1051583  Crepis capillaris Joseph P. Tracy 1949-9-26 18229 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CAS-BOT-BC291479  Crepis capillaris Paul F. Covel 1937-7-12 1103 Humboldt Bolling Redwood Grove Comment
  UC1199458  Crepis capillaris Ralph Ferguson 1948-5-4 Humboldt Parkside Tract Eureka 60 Comment
  UCSB30599  Crepis capillaris Edwards, David 1974-7-13 Humboldt SW. of intersection of Fickle Hill Rd. and Hill St., ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  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
  POM356344  Crepis setosa H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  UC176812  Crocidium multicaule Joseph P. Tracy 1913-5-4 4048 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  SEINET10529035  Crocosmia aurea Charlene A. Bennett 1976-8-6 Bennett 477 Humboldt Collected by hwy. 101, N side of orick. Rocky area, densely forested by river 30 Comment
  HSC58175  Cryptantha affinis G. L. Clifton, Griswold 1979-8-2 12257 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  SEINET12280692  Cryptantha affinis J. P. Tracy 1950-1 18956 Humboldt Friday Ridge 1219 Comment
  UC176947  Cryptantha flaccida Joseph P. Tracy 1912-7-26 3832 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC552253  Cryptantha intermedia Harold E. Parks and Joseph P. Tracy 1934-6-27 11060 Humboldt Grouse Mt. 1432 Comment
  HSC63975  Cryptantha torreyana J. P. Smith, Steve Selva 1970-6-14 3844 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC175684  Cryptantha torreyana Joseph P. Tracy 1912-7-31 3944 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC525596  Cryptantha torreyana Joseph P. Tracy 1929-7-4 8622 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC1239652  Cryptantha torreyana Joseph P. Tracy 1912-7-31 3895 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  HSC70813  Cryptogramma acrostichoides Gail Newton 1980-7-24 1779 Humboldt Near Somes Mtn. 1615 Comment
  HSC76321  Cryptogramma acrostichoides Teresa Prendusi 1981-7-21 284 Humboldt Near Whiteys Peak 1646 Comment
  RSA249509  Cuscuta salina R. F. Thorne, P. C. Everett 1965-8-8 35280 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC3640  Cynoglossum grande Elrid H. Spinas 1948-5-15 3 Humboldt Horse Mtn. Comment
  CHSC94941  Cynoglossum occidentale K. Lang; J. Lang 2005-3-14 8 Humboldt Trinidad, California coast. 51 Comment
  UC1145094  Cynosurus echinatus Joseph P. Tracy 1950-6-23 18865 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); Dobbyn Creek 213 Comment
  UCR45822  Cynosurus echinatus Kenneth Clark 1980-4-18 579 Humboldt North Coast, Shelter Cove, on access trail to Dead Man's Gulch 122 Comment
  HSC95388  Cyperus eragrostis Andrea Pickart 2002-7-9 176 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  UC1103632  Cyperus eragrostis Joseph P. Tracy 1934-7-14 13399 Humboldt along Mad R. near Blue Lake; Mad R. 15 Comment
  CAS-BOT-BC114060  Cyperus squarrosus Henry M. Pollard 1941-8-16 s.n. Humboldt Along river near Orleans. Comment
  UC302157  Cypripedium californicum Joseph P. Tracy 1926-6-27 7669 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  UC201998  Cypripedium montanum Joseph P. Tracy 1918-5-26 4937 Humboldt Redwood Creek Northern Coast Ranges, Grouse Mt. (at foot of mountain) 609 Comment
  CAS-BOT-BC70541  Cystopteris fragilis Doris K. Kildale 1926-5-2 1880 Humboldt Willow Creek Flat - Trinity River tributary 152 Comment
  HSC1045  Cystopteris fragilis D. E. Anderson 1965-5-15 3713 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC55124  Cystopteris fragilis G. L. Clifton, Griswold 1979-8-1 11924 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC89445  Cytisus scoparius P. A. Daly 1984-5-13 20 Humboldt Along trail at Trinidad Head 61 Comment
  CAS-BOT-BC189768  Dactylis glomerata Doris K. Kildale; J. W. Gillespie 1929-6-25 8390 Humboldt Pines Pasture, Eureka. 30 Comment
  SEINET4565919  Dactylis glomerata J. B. Davy 1899-6-16 5557 Humboldt Scotia Comment
  CAS-BOT-BC189745  Danthonia californica Joseph P. Tracy 1935-6-23 13965 Humboldt French Camp Ridge. 1066 Comment
  CDA31640  Danthonia californica T. R. Haig 1960-6-19 Humboldt 2 miles south of Kneeland 0 Comment
  HSC1967  Danthonia californica William J. Ferlatte, B. D. Rogers 1966-6-15 2108 Humboldt Larabee Valley 762 Comment
  HSC45108  Danthonia californica R. Sutherland 1978-5-2 4 .2578 Humboldt 341 Comment
  CAS-BOT-BC194369  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  HSC98849  Danthonia unispicata Cara Witte 2008-7-11 870 Humboldt Horse Mountain Botanical Area. 1/2 mi. south from intersection of National Forest 1, Forest Service Roads 6N38 and 6N36. 1413 Comment
  RSA10088  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  HSC104098  Darlingtonia californica Monica Rodriguez, William A. Worley 2015-3-21 24 Humboldt Along South Fork Rd, 8.9 mi. from 199 Redwood Hwy. Comment
  RSA20722  Darlingtonia californica Carl B. Wolf 1937-9-11 9318 Humboldt Redwood Hwy 3 miles north of Orick (Davison's Ranch on Prairie Creek) 61 Comment
  HSC25997  Darmera peltata Thomas W. Nelson 1970-9-3 211 Humboldt Mad River. Comment
  UC1197346  Daucus pusillus Joseph P. Tracy 1927-6-26 8211 Humboldt Stone Lagoon sand beach 6 Comment
  SEINET4465020 Image available Delphinium decorum H. E. Parks, J. P. Tracy 1930-1 789 Humboldt Laribee Valley 914 Comment
  HSC96953  Delphinium decorum subsp. tracyi Ryoko Ito, Shauna McDonald 2007-6-4 1 Humboldt Coldspring Camp, 7.4 mi. above Hwy. 299 off NF1 on USFS Rd. 5N27 1390 Comment
  RSA249435  Delphinium depauperatum D. E. Anderson, Thomas W. Nelson, S Dowty 1972-6-14 5603 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC668271  Delphinium glaucum Joseph P. Tracy 1935-7-25 14241 Humboldt lower end Brett Hole (along streams); Trinity Summit 1584 Comment
  CAS-BOT-BC10138  Delphinium menziesii Mrs. H. C. Cantelow 1941-4-26 s.n. Humboldt 10.3 miles SW of Ferndale on road to Cape Mendocino Comment
  HSC24973  Delphinium menziesii Francis Winter 1960-5-6 Humboldt Little River State Park, N of Arcata Comment
  HSC95728  Delphinium nudicaule Steven Lee 2004-4-26 30 Humboldt Horse Mtn., 4 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  HSC25007  Delphinium nudicaule D. E. Anderson 1965-5-1 3589 Humboldt W facing sheer cliff above Trinity River along Hwy. 96 Comment
  HSC95789  Delphinium nudicaule Kevin Thomas 2004-3-28 9 Humboldt Horse Linto Creek Campground Comment
  UC1196333  Delphinium nudicaule Joseph P. Tracy 1922-5-29 6081 Humboldt rocky slopes at head Northern Coast Ranges, South Yager Creek 762 Comment
  UCD95890  Delphinium nudicaule P. B. Kennedy 1926-3-17 s.n. Humboldt Between Yager and Bridgeville. Side of road. Comment
  HSC32132  Delphinium nuttallianum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5603 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC1736195  Delphinium nuttallianum Dean W. Taylor 1971-5-5 1061 Humboldt near Arcata Comment
  HSC99024  Delphinium trolliifolium Cara Witte 2008-7-16 909 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  CAS-BOT-BC121961  Delphinium trolliifolium Doris K. Kildale 1927-7-10 3738 Humboldt Gans Prairie on Bal Hills Road Comment
  HSC37429  Delphinium trolliifolium B. R. Templeton 1962-5-24 Humboldt W slope of Berry Summit Comment
  CAS-BOT-BC16944  Delphinium variegatum subsp. variegatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC595124  Deschampsia cespitosa subsp. beringensis David D. Keck 1938-8-5 4773 Humboldt Big Lagoon Comment
  CAS-BOT-BC192545  Deschampsia cespitosa subsp. holciformis J. B. Davy; W. C. Blasdale 1899-5-1 6214 Humboldt Eureka Comment
  RSA12531  Deschampsia danthonioides C. B. Wolf 1934-7-2 5907 Humboldt 4.5 mi. from Snow Camp on rd. to Bald Mt. (Mts. east of Korbel) Comment
  HSC102102  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1005 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC71726  Deschampsia elongata M. A. Baker 1980-6-26 2463 Humboldt Near Sims Creek 610 Comment
  JEPS72936  Deschampsia elongata Lincoln Constance 1934-5-31 747 Humboldt along Bull Creek from w. boundary of Park to Grasshopper Peak (Bull Creek Flat, Squaw Cr. rd., n. side of creek); Bull Creek Region, S. Fork Eel River Comment
  UC526672  Deschampsia elongata Joseph P. Tracy 1932-7-17 10680 Humboldt ridges e. of Corral Prairie; Klamath Mts., Trinity Summit 1828 Comment
  UC552755  Deschampsia elongata Joseph P. Tracy 1934-7-18 13434 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  UCD63575  Deschampsia elongata Harley P. Chandler 1901-6-1 1331 Humboldt Hupa Indian Reservation. 304 Comment
  UCD63594  Deschampsia elongata A. H. Shunk 1923-7-21 Humboldt Bridgeville. Comment
  UCD63596  Deschampsia elongata Elizabeth Wilson 1936-6-18 Humboldt From Garberville north into Holbrook Grove. Comment
  JEPS53431  Descurainia pinnata W. L. Jepson 1902-7-16 2049 a Humboldt Trinity Summit Comment
Read comments
Jan 17 2008
  HSC56461  Dianthus armeria Griswold, Butler 1979-7-12 7249 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC76359  Dicentra formosa Denis Kearns 1981-7-8 164 Humboldt Near Bluff Creek 622 Comment
  JEPS9736  Dicentra formosa Joseph P. Tracy 1930-8-17 9164 Humboldt Big Lagoon; Northern Coast Region 15 Comment
  UC35058  Dicentra formosa Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  UC1222560  Dicentra formosa Joseph P. Tracy 1950-6-8 18720 Humboldt 7 mi s Ferndale (near Mountain Glen); Bear River Ridge 609 Comment
  RSA92453  Dichanthelium acuminatum var. fasciculatum F. W. Peirson 1923-7-9 3650 Humboldt along Eel River, Humboldt State Park Comment
  UC176352  Dichelostemma capitatum Joseph P. Tracy 1913-6-13 4102 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northen Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC86307  Dichelostemma capitatum subsp. capitatum K. Berg, B. Bonning 1983-5-21 493 Humboldt 0.5 mi. up Titlow Hill Rd. from Berry Summit 854 Comment
  HSC44758  Dichelostemma congestum Maralyn O'Meara 1972-6-8 81 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  RSA755796  Dichelostemma congestum Barbara Ertter, Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just west of Berry Summit on Highway 299. 915 Comment
  CAS-BOT-BC501025  Dichelostemma ida-maia M. S. Jussel 1931-5-2 s.n. Humboldt Eureka Comment
  UC666912  Dichelostemma ida-maia Joseph P. Tracy 1937-7-19 15450 Humboldt nw slope Buck Mountain 914 Comment
  UCD139160  Dichelostemma ida-maia K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 609 Comment
  JEPS8812  Dipsacus fullonum Joseph P. Tracy 1937-8-3 15610 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  RSA1510  Disporum smithii E. R. Johnson 1929-08 1414 Humboldt Arcata Redwood Park 76 Comment
  UC146218  Disporum smithii Joseph P. Tracy 1908-6-9 2662 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCR26493  Disporum smithii A. C. Sanders 1981-8-6 2304 Humboldt Patrick's Point State Park, north of Eureka 30 Comment
  UCR67630  Disporum smithii Michael A. Hanson 1990-5-21 71 Humboldt Little Creek Trail in Redwood National Park; on the E side of Hwy 101 c. 7 mi (11 km) south of Klamath. 325 Comment
  UC249802  Distichlis spicata Joseph P. Tracy 1923-6-19 6286 Humboldt Mouth of Davies Creek Comment
  HSC17871  Dodecatheon hendersonii Elrid H. Spinas 1948-5-15 8 Humboldt Horse Mtn. Comment
  UC1198619  Dodecatheon hendersonii Joseph P. Tracy 1923-3-17 6165 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  UC249505  Dodecatheon hendersonii Joseph P. Tracy 1922-4-30 5994 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC45263  Dodecatheon hendersonii M. Alcasas 1978-4-7 4 Humboldt Freshwater Rd. 1/2 mi. N of Kneeland School 857 Comment
  UC1199496  Downingia elegans Joseph P. Tracy 1928-6-24 8475 Humboldt between Middle Yager Creek and North Yager Creek (East Ranch) 762 Comment
  HSC3848  Downingia elegans J. P. Tracy 1927-7-17 8270 Humboldt Three Cabins: lower W foothills of Chaparral Mtn. 457 Comment
  RSA20854  Downingia yina C. B. Wolf 1937-6-18 8894 Humboldt 1/2 mile S of Fortuna. 15 Comment
  HSC12219  Drosera rotundifolia Gary J. Stebbins 1970-5-10 77 Humboldt S end of Big Lagoon, just S of the Rd. that crosses the marsh, 1.1 mi. N of the Big Lagoon store. Comment
  HSC35347  Drymocallis glabrata A. M. Montalvo, J. D. Ackerman 1975-6-22 480 Humboldt 6.4 mi. W of Dinsmore on Hwy. 36 Comment
  UC1198694  Drymocallis glandulosa Joseph P. Tracy 1910-6-19 3154 Humboldt region about Humboldt Bay (near Forks of Elk River); Northern Coast Region, near Forks Elk River 0 Comment
  HSC103070  Drymocallis glandulosa var. reflexa Sydney Carothers 2014-6-11 1 Humboldt Six Rivers National Forest, Lassics Botanical Area; south face Mt. Lassic, along trail to summit 1772 Comment
  HSC58166  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-8-2 12232 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC32345  Drymocallis rhomboidea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5638 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UCSB29333  Dryopteris arguta Phelps, M. 1972-3-20 Humboldt Near Somerville homestead, Elk Ridge. 609 Comment
  HSC23414  Dryopteris expansa Mary Spindler, Roger Bucholtz 1971-11-18 126 Humboldt H.S.C. Campus SW side of Home Ec. under wooden stairway Comment
  UCD60816  Echinochloa crus-galli Joseph P. Tracy 1938-8-14 16115 Humboldt Trinity River Valley, near the South Fork. 182 Comment
  JEPS19336  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie; dried pond bed 60 Comment
  RSA246898  Eleocharis acicularis var. gracilescens Robert F. Thorne, Percy C. Everett 1965-8-9 35326 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC1103666  Eleocharis macrostachya Joseph P. Tracy 1935-5-25 13849 Humboldt Fort Seward 106 Comment
  UC666918  Eleocharis macrostachya Joseph P. Tracy 1934-7-20 13464 Humboldt Big Lagoon, small farm on shore 3 Comment
  UCD49791  Eleocharis macrostachya Thomas Nelson 1977-9-22 3749 Humboldt Humboldt County. In drainage ditch along east side of State Route 101 just north of the Eureka Airport. Comment
  HSC7339  Eleocharis ovata D. E. Anderson 1963-9-29 2855 Humboldt Fish Lake Comment
  HSC64155  Elymus glaucus J. O. Sawyer, K. A. Sawyer 1979-6-24 3399 Humboldt Slopes alongside Aikens Creek. 366 Comment
  HSC102145  Elymus glaucus subsp. glaucus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1052 Humboldt Patterson Meadows 1566 Comment
  HSC58673  Elymus glaucus subsp. glaucus Gilbert Muth 1979-8-1 12151 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC9735  Elymus mollis subsp. mollis W. F. Cartwright 1965-5-10 67 Humboldt 1 mile W of Mckinleyville on the beach. Comment
  UC523866  Elymus multisetus Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1346 Humboldt near bridge on Trinity Highway; Floodplain of Trinity River 152 Comment
  UC526785  Elymus multisetus Joseph P. Tracy 1933-7-25 12893 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UCD62660  Elymus trachycaulus L. Whitney 1933-7-9 Humboldt Black's Lake. 1706 Comment
  HSC8763  Elymus trachycaulus subsp. trachycaulus D. W. C. 1956-6-20 19 Humboldt May Ranch, Bridgeville. 457 Comment
  UC1541559  Epilobium H. E. and S. T. Parks July 1937 24050 Humboldt Spruce Cove Trinidad 64 Comment
  UCR142719  Epilobium canum subsp. latifolium Thomas W. Nelson, Jane P. Nelson 1977-8-6 3722 Humboldt Between Blanket Creek and Bear Creek just below Blanket Rock 1494 Comment
  UC198619  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-9-5 4768 Humboldt 4 mi above mouth; Northern Coast Ranges, South Fork of Eel River 60 Comment
  JEPS39328  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1918-7-6 5046 Humboldt near Humboldt-Mendocino County line (i.e. near Richardson Grove); Northern Coast Ranges, South Fork of Eel River 152 Comment
  POM271563  Epilobium ciliatum subsp. ciliatum Lyman Benson 1928-7-12 467 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  SD219078  Epilobium ciliatum subsp. glandulosum Robert F. Thorne, P. Everett 1965-8-9 35347 Humboldt Along Highway 101, ca. 3.0 miles north of Eureka. 2 Comment
  HSC103280  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-7 1270 Humboldt Six Rivers National Forest, Lower Trinity District, Forest Service Road 5N10, at the crossing of Willow Creek. 1294 Comment
  JEPS43903  Epilobium ciliatum subsp. watsonii W. L. Jepson 1936-8-17 17911 Humboldt 2 mi s Field's Landing (near Still's ranch) Comment
  UC1951301  Epilobium ciliatum subsp. watsonii Robert F. Thorne and P. Everett 1965-8-5 35153 Humboldt Samoa Dunes. Comment
  HSC16346  Epilobium ciliatum subsp. watsonii D. E. Anderson 1961-8-25 1742 Humboldt 1.5 mi. S of Trinidad Comment
  HSC98733  Epilobium densiflorum Cara Witte 2007-8-9 633 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1584 Comment
  UC205637  Epilobium hallianum Joseph P. Tracy 1919-9-18 5234 Humboldt Trinity Summit (Northern Coast Ranges) Comment
  RSA256576  Epilobium minutum D. E. Anderson 1972-6-20 5747 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  UC169920  Epilobium minutum Harley P. Chandler May, 1901 1125 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  RSA21093  Epilobium minutum Carl B. Wolf 1937-6-14 8821 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  JEPS39325 Image available Epilobium oreganum Chesnut and Drew 1888-8-1 Humboldt near Grouse Creek Comment
Read comments
Jun 21 2008
  UC505110  Epilobium oregonense Joseph P. Tracy 1932-7-16 10611 Humboldt meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  RSA1439  Epilobium septentrionale E. R. Johnson 1929-08 1437 Humboldt Eel River. 91 Comment
  HSC32543  Epilobium torreyi Thomas W. Nelson 1973-8-19 1117 Humboldt McKeown Ranch N of Dinsmore, floodplain of Mad River Comment
  UC725499  Epipactis gigantea A. A. Heller 1923-7-10 13790 Humboldt river between Scotia and Pepperwood; Eel River Comment
  HSC102004  Equisetum arvense M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 905 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC97437  Equisetum arvense Ivy Watson 2008-10-5 38 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  CAS-BOT-BC56974  Equisetum arvense Joseph P. Tracy 1937-7-2 15391 Humboldt Happy Camp Mountain (in Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  CAS-BOT-BC57231  Equisetum laevigatum H. E. Parks; Joseph P. Tracy 1927-4-24 7925 Humboldt Eureka 6 Comment
  POM118344  Equisetum telmateia var. braunii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC526900  Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC213622  Eragrostis mexicana subsp. virescens Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UCD63880  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1950-9-22 19372 Humboldt Klamath River, near Slate Creek. Below Orleans 8 miles. 121 Comment
  POM51468  Erechtites minimus Joseph P. Tracy 1918-7-28 5088 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
  HSC57889  Eremogone congesta var. suffrutescens Overton, Butler 1979-7-31 11446 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC296107  Erigeron foliosus var. confinis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC468818  Erigeron foliosus var. confinis Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5886 Humboldt Francis Range Comment
  CAS-BOT-BC300676  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road, near the summit of ridge 762 Comment
  HSC31641  Erigeron glaucus Glenn McGourty 1974-6-1 81 Humboldt Comment
  CAS-BOT-BC295172  Erigeron inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  UC164848  Erigeron inornatus var. inornatus Joseph P. Tracy 1911-7-8 3442 Humboldt near mouth of Willow Creek (valley of Trinity River); Trinity River Valley 152 Comment
  UC87824  Erigeron inornatus var. inornatus W. W. Price 1890-6-5 Humboldt Comment
  HSC57622  Erigeron klamathensis G. L. Clifton, Griswold 1979-7-25 10752 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS41379  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1932-7-1 16409 Humboldt Bull Creek 106 Comment
  HSC100373  Erigeron robustior D. Decker 2010-7-28 Humboldt Dinsmore, off 1N08 on Buck Mtn. 1353 Comment
  CAS-BOT-BC300290  Erigeron supplex Dr. A. Kellogg; W. G. W. Harford 1868-1-1 382 Humboldt Unspecified Comment
  HSC13517  Eriodictyon californicum Paul Shields May 1955 Humboldt 7 mi. W of Hoopa Comment
  HSC55163  Eriogonum compositum Gilbert Muth 1979-8-1 12142 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CDA18207  Eriogonum latifolium G. D. Barbe, T. C. Fuller 1974-6-17 1833 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sea Court, Shelter Cove. 60 Comment
  LA206939  Eriogonum latifolium Marcus E. Jones; 1931-7-12 28806 Humboldt Alton Comment
  RSA246713  Eriogonum latifolium Robert F. Thorne, Percy C. Everett 1965-8-5 35162 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC259160  Eriogonum latifolium H. N. Bolander 1866-1-1 6569 Humboldt Collected on State Survey. Shelter Cove Comment
  CAS-BOT-BC259164  Eriogonum latifolium Joseph P. Tracy 1938-7-15 16062 Humboldt Near bay shore at Bucksport, Eureka 6 Comment
  CAS-BOT-BC259541  Eriogonum luteolum var. luteolum A. A. Heller 1924-7-20 13861 Humboldt Along the Eel River at Phillipsville Comment
  HSC98381  Eriogonum luteolum var. luteolum R. Sutherland 1976-8-24 6 .24876 Humboldt 543 Comment
  UC176709  Eriogonum luteolum var. luteolum Joseph P. Tracy 1912-8-3 3968 Humboldt opposite Buck Mountain; Valley of Van Duzen River 762 Comment
  UC176684  Eriogonum nudum var. nudum Joseph P. Tracy 1912-7-26 3858 Humboldt hills on the Ashfield Ridge North Coast Ranges, Kneeland Prairie, Ashfield Ridge 762 Comment
  UC198571  Eriogonum nudum var. nudum Joseph P. Tracy 1916-9-6 4761 Humboldt head of Canoe Creek Northern Coast Ranges, , Canoe Creek (Grasshopper Ridge) 609 Comment
  UC672893  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-28 14329 Humboldt head of Devil's Hole Trinity Summit, Devil's Hole 1828 Comment
  HSC97920  Eriogonum umbellatum var. umbellatum Cara Witte 2007-6-14 270 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  HSC5592  Eriophyllum lanatum D. E. Anderson 1963-3-16 2384 Humboldt Scotia Bluffs Comment
  RSA12442  Eriophyllum lanatum var. achilleoides C. B. Wolf 1934-7-1 5851 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  UCD132187  Eriophyllum lanatum var. arachnoideum James P. Smith 1973-5-26 6839 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC98956  Eriophyllum lanatum var. integrifolium Cara Witte 2008-7-28 948 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  HSC78919  Eriophyllum lanatum var. lanceolatum T. Jimerson, D. K. Imper 1982-5-17 1438 Humboldt Near Ashfield Ridge. 822 Comment
  UC165860  Eriophyllum staechadifolium Joseph P. Tracy 1907-7-4 2580 Humboldt rocky bluffs along coast near Trinidad; Northern Coast Ranges 15 Comment
  UC275489  Erodium cicutarium Joseph P. Tracy 1925-4-5 6959 Humboldt Lawrence Creek, at crossing of the Kneeland Road Northern Coast Ranges 609 Comment
  CAS-BOT-BC41575  Erysimum capitatum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain. 1371 Comment
  CAS-BOT-BC41570  Erysimum capitatum Doris K. Kildale 1926-3-21 1578 Humboldt Knuland Prairie. 853 Comment
  SEINET10970607  Erysimum capitatum Jones 1985-6-6 Jones 115 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, quercus Chrysolepis, quercus vaccinifolia habitat. Growing on rock wall 1143 Comment
  BLMAR744  Erysimum concinnum Jennifer Wheeler 2015-5-18 744 Humboldt King range, East side of Lost Coast trail approx. 3/4mile from mattole trailhead 30 Comment
  HSC6787  Erysimum menziesii J. R. Woodside 1963-3-10 40 Humboldt 1.25 mi. N of Fairhaven. Comment
  SD92948  Erythranthe grandis W. Bertsch 1953-7-30 228 Humboldt Highway 100 near Arcata Comment
  SDSU19195  Erythronium californicum Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3005 Humboldt Six Rivers National Forest. Adjacent to Titlow Hill Road, ca. 4.6 miles south of junction with Hwy 299 (at Berry Summit), southeast of intersection with dirt road to Horse Mtn. Ca. 0.6 mile south of Horse Mtn. Radio Tower. 1437 Comment
  UCD139632  Erythronium californicum Roman Gankin; W. R. Hildreth 1966-3-15 699 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  HSC65203  Erythronium californicum T. Jimerson, J. Pageau 1979-5-1 445 Humboldt On FS 6N34C, Orleans Ranger District, Orleans Comment
  HSC102051  Erythronium grandiflorum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 955 Humboldt Patterson Meadows 1555 Comment
  SEINET3992426  Erythronium grandiflorum var. pallidum Unknown 1933-7-16 12774 Humboldt South Fork Mountain, near McKay Camp 1676 Comment
  HSC45483  Eschscholzia californica Maralyn O'Meara 1974-7-11 534 Humboldt Kneeland, Barry Ridge Comment
  HSC16767  Eschscholzia californica D. E. Anderson 1962-7-14 2263 Humboldt Comment
  HSC98911  Eschscholzia californica Cara Witte 2007-7-9 465 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  JEPS22186  Eucephalus ledophyllus Joseph P. Tracy 1932-7-15 10601 Humboldt ridges e of Corral Prairie; Trinity Summit 1828 Comment
  UC1222991 Image available Eucephalus tomentellus Joseph P. Tracy 1941-8-24 17043 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC5686  Euchiton gymnocephalus David Adams 1960-7-15 Humboldt Near Azalea Reserve State Park 30 Comment
  CAS-BOT-BC206913  Euonymus occidentalis C. Hart Merriam 1922-7-5 s.n. Humboldt Carson Woods, Fortuna Comment
  BLMAR397  Euonymus occidentalis var. occidentalis Jennifer Wheeler 2004-7-15 397 Humboldt Jacoby creek, Growing in mixed conifer forest 304 Comment
  UC1199005  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1906-6-10 2473 Humboldt headwaters of Freshwater Creek near Kneeland Prairie; Northern Coast Ranges, Freshwater Creek 457 Comment
  UC275491  Euonymus occidentalis var. occidentalis H. E. Parks and Joseph P. Tracy 1925-6-14 7123 Humboldt along streams on Kneeland Prairie rd. Northern Coast Ranges, Kneeland Prairie rd. 457 Comment
  SEINET11850490  Eupatorium occidentale J. P. Tracy 1950-1 19223 Humboldt Friday Ridge 1219 Comment
  UC1198983  Euphorbia crenulata Joseph P. Tracy 1935-5-25 13879 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC312209  Eurybia radulina Doris K. Kildale 1928-8-5 6266 Humboldt Bull Creek Flat, South Fork of Eel River Comment
  CAS-BOT-BC312211  Eurybia radulina Doris K. Kildale 1925-8-21 1312 Humboldt Head of South Yager Creek 914 Comment
  UC1223175  Euthamia occidentalis Joseph P. Tracy 1949-9-1 18538 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC70822  Festuca altaica Joseph Burtt Davy and Walter C. Blasdale 1899-6-22 5746 Humboldt Trinity Summit Comment
  HSC40335  Festuca californica Thomas W. Nelson, Jane P. Nelson 1976-6-16 2740 Humboldt W of Alder Springs along FS 2S07 1524 Comment
Read comments
Jul 23 2010
  HSC26160  Festuca idahoensis J. P. Smith, Steve Selva 1970-6-30 4111 Humboldt Comment
  RSA10135  Festuca idahoensis Joseph P. Tracy 1933-7-25 12890 Humboldt Grouse Mountain, North Coast Ranges 1524 Comment
  CAS-BOT-BC278808  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville Comment
  UC187113  Festuca occidentalis J. P. Tracy 1903-5-22 1876 Humboldt Alder Point Eel River 152 Comment
  SEINET10559307  Festuca occidentalis Victor Duran 1933-5-11 Duran 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  CAS-BOT-BC278963  Festuca rubra David D. Keck 1948-7-1 5970 Humboldt South side of Big Lagoon Comment
  HSC65121  Festuca rubra J. P. Smith 1973-5-26 6880 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  RSA10070  Festuca rubra Joseph P. Tracy 1927-6-26 8217 Humboldt Stone Lagoon. Comment
  UC1145214  Festuca rubra Joseph P. Tracy 1950-6-17 18837 Humboldt Eureka 3 Comment
  UCD66389  Festuca rubra Thomas Nelson; Jane Nelson 1976-7-26 3024 Humboldt Trinity - Humboldt County line: Road 1S07 west of Black Lassic. 1615 Comment
  CAS-BOT-BC282515  Festuca subbiflora W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  UC1145205  Festuca subulata Joseph P. Tracy 1937-7-25 15541 Humboldt head of Little Hors-Linto Creek Trinity Summit, Little Hors-Linto Creek 1371 Comment
  HSC18624  Fragaria chiloensis J. W. Johnson 1961-8-17 1015 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC18619  Fragaria chiloensis D. E. Anderson 1962-3-30 1954 Humboldt Coastal area of Prairie Creek State Park Comment
  UC1198725  Fragaria chiloensis Joseph P. Tracy 1918-4-21 4875 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UC183556  Fragaria vesca Joseph P. Tracy 1913-6-25 4340 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC44359  Frangula californica Brad Klipfel 1974-9-17 574 Humboldt Horse Mtn. Comment
  CAS-BOT-BC52730  Frangula californica subsp. californica Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  CAS-BOT-BC52735  Frangula californica subsp. californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  CAS-BOT-BC52743  Frangula californica subsp. californica Doris K. Kildale 1927-7-3 3653 Humboldt Willow Creek Flat 152 Comment
  HSC59446  Frangula purshiana Kenneth Clark 1979-5-29 367 Humboldt 0.1 mi. past end of Granite Ave. 23 Comment
  RSA171981  Fraxinus latifolia Robert F. Thorne 1957-9-2 18992 Humboldt Burlington State Park, just S of Weott. Comment
  HSC79480  Fritillaria affinis Kenneth Clark 1980-3-27 561 Humboldt Upper alluvial terraces of S fork Dead Man's Gulch 76 Comment
  UC1197634  Fritillaria affinis Joseph P. Tracy 1919-4-27 5127 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC79054  Fritillaria purdyi D. K. Imper 1984-5-16 Humboldt 0.25 mi. E of Friday Camp Rd., 0.25 mi. N of junction with 6N01 1220 Comment
  HSC41592  Galium ambiguum subsp. siskiyouense Thomas W. Nelson, Jane P. Nelson 1977-7-1 3558 Humboldt Along ridge between Bear Creek and Blanket Creek 1494 Comment
  HSC19797  Galium bolanderi Lauramay T. Dempster, G. L. Stebbins 1963-7-9 3853 Humboldt 1/2 mi. E of Dinsmore on Hwy. 36 732 Comment
  RSA273400  Galium bolanderi Thomas W. Nelson, Jane Nelson 1976-7-1 2896 Humboldt North of Bear Creek 1463 Comment
  UC169072  Galium boreale subsp. septentrionale Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5883 Humboldt Trinity Summit North Coast Ranges Comment
  JEPS52859  Galium californicum subsp. californicum Lauramay T. Dempster 1963-7-9 3849 Humboldt 4.4 mi s Bridgeville (on Hwy 36 to Dinsmore) 457 Comment
  JEPS52838  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3860 Humboldt 2.3 mi s Weott; Avenue of The Giants 60 Comment
  JEPS6683  Galium muricatum Lincoln Constance 1934-5-23 602 Humboldt se slope of mt. above Look Prairie; South Fork Eek River, Bull Creek Region 365 Comment
  HSC41598  Galium parisiense Thomas W. Nelson 1977-7-4 3610 Humboldt Alder Springs 1524 Comment
  HSC67841  Galium parisiense J. P. Smith 1971-10-9 5029 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC1196079  Galium triflorum Joseph P. Tracy 1930-7-16 8925 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC100644  Galium triflorum Carl C. Marshall May 1886 210 Humboldt Woods everywhere. Comment
  UC1023846  Galium triflorum Milo S. Baker 1947-8-10 11903 Humboldt near end of Forest Rd from Hoopa toward Trinity Summit Comment
  HSC26353  Gamochaeta ustulata T. O. Osborne 1970-9-16 54 Humboldt Trinidad Bay, Prisoner Rock Comment
  UC1199355  Gamochaeta ustulata J. P. Tracy 1901-6-16 1147 Humboldt immediate vicinity Eureka 0 Comment
  UC1196890  Garrya buxifolia Joseph P. Tracy 1933-7-11 12677 Humboldt Horse Mountain 1402 Comment
  HSC39952  Garrya elliptica Linda M. Barker 1976-1-24 1310 Humboldt 3 mi. W of Arcata Comment
  UC154051  Garrya elliptica J. P. Tracy 1901-1-27 990 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UC154097  Garrya elliptica J. P. Tracy 1901-4-14 1030 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UC1541254  Garrya elliptica Harold E. Parks Mar 1933 1403 Humboldt near Trinidad Comment
  UC21582  Garrya elliptica W. C. Blasdale 1896-6-3 Humboldt Eureka; w Eureka Comment
  CAS-BOT-BC182144  Garrya fremontii S. Matthews; M. Goering; R. James 1985-5-10 058 Humboldt unspecified 1143 Comment
  HSC8404  Garrya fremontii C. B. Wolf 1927-8-28 1169 Humboldt Lord Ellis Rd. to Blue Lake, 9 mi. from Willow Creek, 2 mi. below grade summit Comment
  RSA21606  Garrya fremontii Carl B. Wolf 1937-8-13 9228 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC314602  Garrya fremontii Joseph P. Tracy 1925-9-6 7260 Humboldt near Don Juan Point (Trinity River); Northern Coast Ranges 304 Comment
  UCD39985  Garrya fremontii Rodney Gale Myatt 1971-9-22 1200 Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  UC34067  Gastridium ventricosum J. P. Tracy 1900-9-9 951 Humboldt bar of Yager Creek near Hydesville; bar of Yager Creek 60 Comment
  SEINET2031089 Image available Gaultheria ovatifolia Joseph P. Tracy 1939-1 16320 Humboldt Bald Mountain, at Lake Prairie 1070 Comment
  UC1222634  Gaultheria ovatifolia Joseph P. Tracy 1951-6-14 19417 Humboldt Snow Camp 1402 Comment
  HSC81927  Gaultheria shallon Thomas W. Nelson, Jane P. Nelson 1979-7-3 4952 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  RSA1915  Gaultheria shallon C. B. Wolf 1930-10-30 1043 Humboldt Old Coast Road, 4 mi. so. of Thorn. 305 Comment
  RSA309623  Gaultheria shallon W. Wisura 1983-9-2 3930 Humboldt 6 mi W of Willow Creek, at East Fork campground, along Hwy. 299 Comment
  RSA467225  Gaultheria shallon Maude Minthorn s.n. Humboldt Ferndale. Comment
  RSA467228  Gaultheria shallon Anstruther Davidson 1927-08 s.n. Humboldt No location noted. Comment
  RSA50144  Gaultheria shallon E. K. Balls 1949-7-11 13972 Humboldt 35 miles west of Willow Creek on Hwy 299 from Willow Creek to Arcata. 152 Comment
  SDSU2869  Gaultheria shallon Harvey 1938-8-13 2254 Humboldt West of Arcata. Comment
  UC1197592  Gaultheria shallon J. P. Tracy 1901-5-30 1114 Humboldt immediate vicinity Eureka 0 Comment
  HSC40676  Gayophytum heterozygum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2925 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  POM214928  Gayophytum heterozygum Joseph P. Tracy 1932-7-12 10456 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole 1829 Comment
  HSC99579  Gayophytum humile K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 244 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC144066  Gayophytum humile Joseph P. Tracy 1908-6 2845 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  UC495730  Genista Joseph P. Tracy 1927-7-24 8301 Humboldt Mattole Valley; Northern Coast Ranges, Mattole Valley 152 Comment
  UC153982  Gentiana affinis var. ovata J. P. Tracy 1904-8-7 2140 Humboldt immediate vicinity Eureka 0 Comment
  UC562300  Gentiana affinis var. ovata Joseph P. Tracy 1933-10-1 13078 Humboldt hillsides Big Lagoon 91 Comment
  UC1173685  Gentiana calycosa Joseph P. Tracy 1939-8-16 16412 Humboldt Horse Mountain Northern Coast Ranges (serpentine formation) 1402 Comment
  HSC96490  Gentiana sceptrum Gordon Leppig 1997-8-3 635 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  UC902032  Gentiana sceptrum Joseph P. Tracy 1949-8-11 18457 Humboldt Snow Camp 1402 Comment
  UCD23455  Gentiana sceptrum K. Niles 1950-9-20 s.n. Humboldt Big Lagoon. Comment
  UCSB26680  Gentiana sceptrum Havlik, Neil 1968-8-21 Humboldt south end of Big Lagoon; north of Trinidad 1 Comment
  HSC23745  Geranium dissectum Tim Baroni 1971-7-6 126 Humboldt Bayside, 1/2 mi. from intersection of Old Arcata Rd. and Jacoby Creek Rd. on Jacoby Creek Rd. Comment
  SEINET3356154 Image available Gilia capitata H. E. Parks, J. P. Tracy 1930-5-25 0793 Humboldt Near Bridgeville Comment
  UC1197922  Gilia capitata subsp. pacifica Joseph P. Tracy 1921-5-30 5498 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  BLMAR606  Gilia millefoliata Jennifer Wheeler 2011-4-1 606 Humboldt King range, growing throughtout the Mattole beach dune area Comment
  UC198642  Gilia millefoliata Joseph P. Tracy 1917-5-30 4794 Humboldt Little River Beach , Little River Beach (Northern Coast Ranges) 6 Comment
  JEPS69508  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  HSC100596  Gilia tricolor Carl C. Marshall May 1887 420 Humboldt Dobbyn's Creek. Comment
  UC23861  Gilia tricolor subsp. tricolor C. C. Marshall 1888-1 Humboldt Comment
  BLMAR647  Githopsis specularioides Jennifer Wheeler 2011-6-21 647 Humboldt Lacks Creek, Stormy Saddle Prairie 1158 Comment
  UC602567  Githopsis specularioides Joseph P. Tracy 1932-6-17 10221 Humboldt Three Forks of Mad River North Coast Ranges 883 Comment
  RSA273327  Glaux maritima J. D. Ackerman 1975-6-10 453 Humboldt 1 mile N of Samoa Bridge turnoff from Samoa Blvd., S of Manila, Humboldt Bay Comment
  UC176956  Glaux maritima Joseph P. Tracy 1912-6-16 3698 Humboldt near Hookton (Region around Humboldt Bay, Northern Coast Region); Northern Coast Region 0 Comment
  CAS-BOT-BC218428  Glehnia littoralis subsp. leiocarpa Ira L. Wiggins 1930-7-7 4676 a Humboldt Sand dunes near Samoa Comment
  HSC39440  Glehnia littoralis subsp. leiocarpa Linda M. Barker 1976-6-22 1626 Humboldt 3 mi. W of Arcata Comment
  JEPS14217  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1927-6-26 8207 Humboldt beach along ocean Stone Lagoon 6 Comment
  UC642340  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1927-6-26 8207 Humboldt Stone Lagoon 6 Comment
  HSC102148  Glyceria elata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1055 Humboldt Patterson Meadows 1555 Comment
  HSC58544  Glyceria elata Overton, Butler 1979-7-23 9547 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA151817  Glyceria striata H. K. Sharsmith, Francia Chisaki 1959-8-22 4756 Humboldt At Happy Camp. Just over Trinity County line. 915 Comment
  RSA168832  Gnaphalium chilense Joseph P. Tracy 1950-7-15 19044 Humboldt Trinity River, E side, 1 mile N of mouth of Willow Creek. Comment
  HSC32533  Gnaphalium palustre Thomas W. Nelson 1973-9-3 1129 Humboldt McKeown Ranch N of Dinsmore, rocky alluvium along Mad River Comment
  JEPS20477  Gnaphalium palustre Joseph P. Tracy 1933-8-30 13043 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain (bed of dried up pond) 1524 Comment
  POM358894  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-08 24080 Humboldt Spruce Cove, Trinidad. Comment
  UC164842  Gnaphalium palustre Joseph P. Tracy 1911-7-7 3383 Humboldt 3 m nw of junction with Trinity River Willow Creek (at meadow on mountainside, near Beebs Ranch); Northern Coast Ranges, , Trinity River 914 Comment
  CAS-BOT-BC304736  Grindelia hirsutula Doris K. Kildale 1926-6-25 2172 Humboldt Big Lagoon Comment
  JEPS93179  Grindelia hirsutula Margriet Wetherwax and Kevin Downing 1993-8-9 2458 Humboldt Eureka Slough Humboldt Bay (s side, near Bayside Rd. and Myrtle Marsh, at end of road to church, on e side of bay, just n of Eureka) 5 Comment
  POM253560  Grindelia hirsutula C. L. Hitchcock, J. S. Martin 1939-7-14 5437 Humboldt Bluffs facing sea at Shelter cove Comment
  UC722051  Grindelia hirsutula C. L. Hitchcock and J. S. Martin 1939-7-14 5437 Humboldt bluffs facing sea at Shelter Cove Comment
  HSC56345  Hackelia bella Griswold, Butler 1979-7-10 6282 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  JEPS67922  Hackelia californica Joseph P. Tracy Jul 16 1930-Jul 19 1930 9024 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  POM161485  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-23 5287 Humboldt Trinity Summit 1829 Comment
  JEPS35024  Helenium bigelovii Joseph P. Tracy 1937-8-12 15657 Humboldt Snow Camp 1402 Comment
  SEINET5711015  Helenium bigelovii Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6103 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Thake the lefthand road (leading to "Waterman Ridge, Zeigler Point") and travel 6.7 miles down this road to another fork in the road. Take the right fork (away fromt he road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 6.4 miles. At this point, the collection site is about 100 feet up 7NO4R. Comment
  CAS-BOT-BC306868  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park 6 Comment
  CAS-BOT-BC306872  Helenium bolanderi Dr. A. Kellogg; W. G. W. Harford 1868-1-1 469 Humboldt Unspecified Comment
  UC34187 Image available Helenium bolanderi H. P. Chandler and J. P. Tracy May 1901 1204 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  SEINET10673347 Image available Helenium bolanderi Albert Kellogg, W. G. W. Harford 1868-1 Kellogg 469 Humboldt Comment
  HSC39775  Helminthotheca echioides Peter Sorensen 1976-8-19 Humboldt Woodley Island Comment
  HSC6065  Helminthotheca echioides D. E. Anderson 1963-10-16 2884 Humboldt Jacoby Creek Rd. Comment
  CAS-BOT-BC453382  Hemitomes congestum Gary Wallace 1973-7-11 1252 Humboldt Prairie Creek Redwoods State Park, north of Orick Comment
  HSC100436  Hemizonella parvula Carl C. Marshall Jun 1886 25 Humboldt South Fork Mtn. Comment
  CAS-BOT-BC309998  Hemizonia congesta subsp. tracyi Thomas Nelson; Jane Nelson; James Nelson 1975-6-21 1950 Humboldt Beside highway 36 ca. 5 mi. east of Bridgeville Comment
  CAS-BOT-BC310000  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-23 4805 Humboldt Little Van Duzen River Comment
  JEPS82128  Hemizonia congesta subsp. tracyi Rimo Bacigalupi 1959-7-7 7249 Humboldt immediately behind headland of Cape Mendocino (steep grade of coast road, just s of road summit at this point) 30 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
  HSC60360  Heracleum maximum Clark L. Miller 1979-5-13 1120 Humboldt N of Trinidad along Patricks Point Dr. Comment
  HSC32119  Heterocodon rariflorum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5709 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC5313  Heterotheca oregona D. E. Anderson 1963-9-21 2837 Humboldt 1/2 mi. E of Willow Creek Comment
  HSC25982  Heterotheca oregona var. rudis Thomas W. Nelson 1970-9-3 233 Humboldt Mad River. Comment
  JEPS2423  Heterotheca oregona var. rudis W. L. Jepson 1932-7-25 16398 Humboldt Old Grant Camp Eel River Comment
  HSC96272  Heuchera micrantha J. Breton, A. Livingston 2005-6-15 11 Humboldt NE of Grouse Mtn. 1327 Comment
  CAS-BOT-BC420720  Heuchera micrantha var. diversifolia M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  CAS-BOT-BC312390  Hieracium albiflorum Doris K. Kildale 1926-6-6 2118 Humboldt Gold Bluffs Comment
  HSC44343  Hieracium albiflorum Brad Klipfel 1975-6-17 686 Humboldt Horse Mtn. Comment
  UC1199463  Hieracium bolanderi Joseph P. Tracy 1933-7-25 12830 Humboldt Horse Mountain 1432 Comment
  HSC58196  Hieracium greenei G. L. Clifton, Griswold 1979-8-2 12295 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC582410  Hieracium greenei Joseph P. Tracy 1935-7-29 14340 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  POM360469  Hieracium greenei Thomas W. Nelson, Jane P. Nelson 1977-8-6 3714 Humboldt Along the lower south slope of Mt. Lassic (Signal Peak). 1494 Comment
  RSA183516  Hierochloe occidentalis G. N. Bos 1965-5-2 248 Humboldt 8 miles east of Korbel on Bald Mountain Road 793 Comment
  UC187263  Hierochloe occidentalis J. P. Tracy 1901-8-1 1237 Humboldt woods near Rohnerville 91 Comment
  UC39806  Hierochloe occidentalis W. C. Blasdale 1896-6-7 Humboldt near Kneeland Prairie Comment
  HSC90661  Hippuris vulgaris Gail Newton 1982-6-10 3638 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC13463  Hippuris vulgaris L. J. Coombes 1964-5-9 29 Humboldt 3 mi. N on Lamphere Rd., Arcata low lands Comment
  SBBG88819  Hippuris vulgaris A. Keedy 1988-9-18 10 Humboldt Arcata Salt Water Project, Arcata Comment
  HSC59126  Holcus lanatus Terry Roth 1979-5-26 88 Humboldt Arcata, field off Sunset Ave., near the old mill location. Comment
  RSA121226  Holcus lanatus H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  UCD84884  Holcus mollis R. N. Raynor 1935-6-7 s.n. Humboldt Fort Seward. Comment
  CAS-BOT-BC149909  Holodiscus discolor C. C. Harris; S. K. Harris 1936-6-9 329 Humboldt Behind Mrs. Wilder's, Carlotta Comment
  HSC98853  Holodiscus discolor Cara Witte 2008-7-11 871 Humboldt Horse Mountain Botanical Area. 1/2 mi. south from intersection of National Forest 1, Forest Service Roads 6N38 and 6N36. 1413 Comment
  OBI33238  Holodiscus discolor David J. Keil 1983-7-1 17262 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UC666854  Holodiscus discolor Joseph P. Tracy 1935-7-24 14193 A Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  HSC39908  Hordeum brachyantherum J. P. Smith, Steve Selva 1970-6-30 4109 Humboldt Comment
  SEINET200585  Hordeum brachyantherum Joseph Tracy, Mary Barkworth; 1998 1942-9-20 17326 Humboldt Field's Landing. Moist flats along edges of foothills 2 miles south of town. 6 Comment
  HSC79333  Horkelia tridentata var. flavescens D. H. Norris 1970-5-20 12177 Humboldt Crest of Big Hill Rd. E of Hoopa Comment
  HSC58536  Hosackia oblongifolia var. oblongifolia Overton, Butler 1979-7-23 9454 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  UCD128229  Hydrocotyle ranunculoides Linda M. Barker 1976-8-2 1704 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC98762  Hydrophyllum occidentale Cara Witte 2008-7-2 823 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  UC562598  Hydrophyllum occidentale Joseph P. Tracy 1932-7-12 10470 Humboldt Head of Brett Hole; Trinity Summit 1828 Comment
  HSC13541  Hydrophyllum tenuipes H. E. Parks, J. P. Tracy 1930-5-25 863 Humboldt Van Duzen River 305 Comment
  UC1762197  Hydrophyllum tenuipes H. E. Parks and Joseph P. Tracy 1949-6-25 11674 Humboldt Trinity Summit, meadow at Box Camp 1463 Comment
  JEPS1636  Hydrophyllum tenuipes Joseph P. Tracy 1925-6-1 6690 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of the Kneeland Road) 457 Comment
  UC582691  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-25 15538 Humboldt Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC39801  Hypochaeris radicata Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  SEINET11860415  Hypochaeris radicata Unknown 1933-8-6 s.n. Humboldt Eureka Comment
  CAS-BOT-BC123474  Iliamna latibracteata Doris K. Kildale 1926-7-5 2312 Humboldt Prairie Creek, near Davidson's. Comment
  CAS-BOT-BC206849  Iliamna latibracteata Carl Purdy 1938-8-1 s.n. Humboldt Willow Creek Comment
  HSC96744  Iliamna latibracteata M. Mesler 2006-7-28 625 Humboldt E of Grouse Mtn., 2.1 mi. from NF 1, below road. 1448 Comment
  JEPS17241  Iris douglasiana Lincoln Constance 1934-5-31 763 Humboldt from w boundary of park to Grasshopper Pk. (Squaw Cr.) (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  RSA135866  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-4 16422 Humboldt Between Ben Johnson and Russ Grove, just south of Del Norte County line, Highway 101 Comment
  RSA40408  Iris douglasiana Philip A. Munz, Lee W. Lenz 1948-8-13 12350 Humboldt 8 miles east of Blue Lake, on Highway 299 305 Comment
  UC175302  Iris douglasiana Joseph P. Tracy 1912-4-21 3571 B Humboldt Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  UC667113  Iris douglasiana Joseph P. Tracy 1933-5-20 12257 Humboldt Mattole Valley; Northern Coast Ranges 30 Comment
  UC1196376  Iris macrosiphon Joseph P. Tracy 1935-7-14 14067 Humboldt Grouse Mountain 1524 Comment
  HSC34873  Iris purdyi Thomas W. Nelson, James Nelson 1975-5-5 1780 Humboldt Beside Hwy. 101, 4 mi. S of Salmon Creek bridge Comment
  RSA0000278  Iris tenax subsp. klamathensis Lee W. Lenz 1953-5-13 18296 Humboldt Wooded hillsides along Klamath River, Orleans. 122 Comment
  HSC44321  Iris tenuissima Brad Klipfel 1975-6-17 668 Humboldt Horse Mtn. Comment
  RSA135920  Iris tenuissima Lee W. Lenz, E. K. Balls 1955-5-15 20734 Humboldt 15.8 miles southeast along U.S. Highway 299 from Willow Creek, towards Arcata 579 Comment
  UC429166  Iris tenuissima P. E. Goddard 1907-5-29 103 Humboldt Van Duzen Comment
  HSC92109  Isoetes echinospora L. Carufel 1973-8-16 Humboldt Growing in Divide Lake Comment
  CHSC57145  Isolepis cernua L. P. Janeway 1983-9-24 700 Humboldt 10-30 ft from water line of Big Lagoon at county campground (south corner of the lagoon). 3 Comment
  HSC90644  Isolepis cernua Gail Newton 1982-5-2 2513 Humboldt Elk River Wildlife Area, Eureka Comment
  POM185720  Isolepis cernua Joseph P. Tracy 1917-6-10 4821 Humboldt Eureka. 0 Comment
  HSC77189  Isolepis cernua Paul Wilson 1983-10-5 Humboldt Along Jolly Giant Creek, E of HSU housing, Arcata 15 Comment
  UC198638  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt around, Salmon Creek Valley Humboldt Bay; Northern Coast Ranges, , Salmon Creek Valley 30 Comment
  UC479412  Jaumea carnosa Marcus E. Jones, A. M. 1931-7-16 29118 Humboldt Arcata Comment
  HSC5882  Jaumea carnosa H. E. Parks Aug 1941 24187 Humboldt Big Lagoon; Causeway, W end. Comment
  CAS-BOT-BC110012  Juncus Henry M. Pollard 1956-10-8 s.n. Humboldt Along road above Ullathorne Riffle, ca. 3 miles southwest of Orleans. Comment
  UC249540  Juncus balticus subsp. ater Joseph P. Tracy 1921-7-10 5855 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC303152  Juncus balticus subsp. ater Joseph P. Tracy 1925-8-2 7221 Humboldt Big Lagoon Northern Coast Region 6 Comment
  POM126145  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon. 6 Comment
  UC1152115  Juncus bufonius Joseph P. Tracy 1930-10-19 9233 Humboldt near Alton; Eel River Comment
  UC249813  Juncus covillei var. obtusatus Joseph P. Tracy with H. E. Parks 1924-8-3 6759 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC184935  Juncus effusus subsp. pacificus Joseph P. Tracy 1912-7-25 3820 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  BLMAR316  Juncus effusus subsp. pacificus Jennifer Anthony-Wheeler 2002-8-6 316 Humboldt King range, grwong at mattole beach behind dune 6 Comment
  HSC62949  Juncus effusus subsp. pacificus M. Dean Griswold 1979-5-27 65 Humboldt W of G St., S of Arcata Comment
  SEINET10756160 Image available Juncus effusus var. exiguus Unknown Rattan 5 Humboldt Comment
  HSC98649  Juncus ensifolius Cara Witte 2007-7-3 419 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/2 mile east from intersection with National Forest 1. 1397 Comment
  HSC57891  Juncus exiguus Walter Overton, Marvin Butler 1979-7-31 11456 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1196725  Juncus hesperius J. P. Tracy 1900-6-23 859 Humboldt immediate vicinity Eureka 0 Comment
  JEPS67119  Juncus kelloggii Joseph P. Tracy 1914-5-14 4431 Humboldt Fort Seward 121 Comment
  HSC36888  Juncus laccatus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2057 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  JEPS121390  Juncus occidentalis Peter F. Zika 2011-7-3 25491 Humboldt Titlow Hill Road, 3 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain Comment
  HSC71742  Juncus oxymeris M. A. Baker 1980-6-26 2422 Humboldt Near Sims Creek 610 Comment
  HSC57634  Juncus parryi G. L. Clifton, Griswold 1979-7-25 10791 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC58005  Juncus parryi G. L. Clifton, Griswold 1979-7-31 11791 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  HSC79500  Juncus patens Kenneth Clark 1980-6-14 682 Humboldt Shelter Cove, N Fork of Dead Man's Gulch. 122 Comment
  HSC57962  Juncus tenuis G. L. Clifton, Terry Griswold 1979-7-31 11667 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  SEINET11789825  Juncus tenuis J. P. Tracy 1937-1 15609 Humboldt near Blue Lake, along Mad River 15 Comment
  RSA120310A  Keckiella corymbosa S. S. Tillett 1956-7-6 605 Humboldt E facing slope above Klamath River, along Ishi Rish Road, 1 mi. n. of Orleans. 168 Comment
  UC566682  Keckiella corymbosa H. L. Mason 1928-7-14 4900 Humboldt near Garberville; East Fork of the Eel River Comment
  HSC98709  Keckiella lemmonii Cara Witte 2007-7-27 605 Humboldt Forest Service Road 4N32. 1.5 mile N of intersection with Forest Service Road 4N32B. 1585 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
  JEPS24829  Kickxia spuria H. G. Baker, A. Nelson, J. Surenson, A. Weston 1960-12-29 Humboldt near Nelson Grove; Humboldt Redwoods State Park Comment
  UC1196122  Kopsiopsis strobilacea Road Maintenace Crew May 1943 Humboldt Willow Creek Canyon on Trinity Highway. 762 Comment
  HSC58117  Kyhosia bolanderi G. L. Clifton, Griswold 1979-8-1 12079 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UCD125067  Lamium purpureum Joseph P. Tracy 1945-5-10 17508 Humboldt Eureka. 45 Comment
  HSC27076  Lapsana communis Brad Klipfel 1973-8-25 292 Humboldt Across from Lazy L Ranch on Fickle Hill Rd. Comment
  CAS-BOT-BC337993  Lasthenia californica L. B. Kildale 1930-6-1 9767 Humboldt Klamath River at Bluff Creek Comment
  HSC5135  Lasthenia californica G. N. Bos 1965-5-15 261 Humboldt 3 mi. W of Berry Summit along U.S. 299 610 Comment
  POM208992  Lasthenia californica Lincoln Constance 1934-5-23 616 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park 366 Comment
  UC129576  Lasthenia californica subsp. californica Harley P. Chandler May 1901 1260 Humboldt Redwood belt; Coast Ranges 152 Comment
  HSC32085  Lathyrus jepsonii subsp. californicus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5702 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC495705  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1927-4-10 7893 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA239724  Lathyrus littoralis Larry E. DeBuhr, Gary D. Wallace 1973-5-22 1152 Humboldt In sand at beach at Big Lagoon. Comment
  SEINET12153896  Lathyrus nevadensis J. P. Tracy 1946-1 17534 Humboldt Kneeland Prairie 762 Comment
  UCD106338  Lathyrus palustris Malcolm A. Nobs; S. Galen Smith 1949-8-3 1187 Humboldt Southern outskirts of Eureka. Comment
  UC162788  Lathyrus vestitus Joseph P. Tracy 1906-6-24 2498 Humboldt near Field's Landing (s slope of Humboldt Hill); Northern Coast Region, Humboldt Bay Region, Humboldt Hill 0 Comment
  UC931763  Lathyrus vestitus C. L. Hitchcock 1949-6-7 19081 Humboldt ca 15 mi n Garberville (Redwood Highway) Comment
  UC198626  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt mouth Little River Comment
  UCD133892  Layia carnosa Linda M. Barker 1976-4-13 1377 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC100701  Layia carnosa Carl C. Marshall May 1885 39 Humboldt Peninsula. Comment
  SEINET11811297  Layia gaillardioides J. P. Tracy 1950-1 18760 Humboldt W slope Domingo Hill leading from coast toward Petrolia Comment
  UC275300  Ledum glandulosum R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UCSB22188  Lemna obscura Joseph Keefe 1967-7-8 1862 a Humboldt collected along the E-side of U S Highway 101 turnoff to Crannell Road N of Eureka U S Highway 101, Crannell Road and Eureka 6 Comment
  CAS-BOT-BC534876  Lemna valdiviana Henry M. Pollard 1948-7-21 s.n. Humboldt New Orleans Comment
  HSC59676  Leontodon saxatilis subsp. saxatilis George Kirn 1977-10-30 Humboldt 1/2 mi. from mouth of Elk River 8 Comment
  HSC91909  Leontodon saxatilis subsp. saxatilis E. Mackey 1986-10-7 Humboldt Patrick's Point State Park; near Penn Creek Campground Comment
  HSC64787  Lepidium densiflorum J. P. Smith, Steve Selva 1970-6-14 3843 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1199164  Lepidium nitidum Joseph P. Tracy 1933-5-20 12225 Humboldt 3 mi s point of Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  UC552286  Lepidium virginicum Joseph P. Tracy 1933-8-22 12992 Humboldt Mouth of Eel River North Coast Ranges 3 Comment
  UC908950  Leptosiphon latisectus Joseph P. Tracy 1927-5-8 7976 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  HSC5934  Lessingia nemaclada J. P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  OBI28618  Lessingia nemaclada J. & B. Semple, B. Semple 1981-8-21 5692 Humboldt hwy 36, 4 mi S of Mad river park Comment
  SEINET11448001 Image available Leucanthemum vulgare H. E. Parks, S. T. Parks 1943-1 24257 Humboldt Spruce Cove, Trinidad 60 Comment
  HSC5359  Leucanthemum vulgare D. E. Anderson 1961-9-13 1825 Humboldt Comment
  HSC67896  Leucanthemum vulgare J. P. Smith 1973-5-26 6806 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC101968  Lewisia nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 864 Humboldt Patterson Meadows 1555 Comment
  UC184878  Leymus X vancouverensis Joseph P. Tracy 1912-7-7 3744 Humboldt Eureka Northern Coast Region (bay shore) 0 Comment
  RSA259563  Leymus vancouverensis D. E. Anderson, J. P. Smith 1971-6-28 J- 1260 Humboldt 2.5 miles South of Blue lake along Mad River Comment
  UC1222811  Ligusticum apiifolium Joseph P. Tracy 1950-7-31 19238 Humboldt Grouse Mt. 1524 Comment
  HSC55665  Ligusticum californicum Overton, Butler 1979-7-25 9840 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC74226  Ligusticum californicum M. A. Baker 1980-7-19 3021 Humboldt Near Bret Hole. 1814 Comment
  HSC74437  Ligusticum californicum Gail Newton 1980-8-10 2068 Humboldt Near Blake Mtn. 1707 Comment
  SEINET12057698  Lilium F. H. Utech 1977-6-30 s.n. Humboldt Redwoods National Park Comment
  CAS-BOT-BC508402  Lilium columbianum A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt A few miles north of Arcata near U.S. Highway 101 Comment
  POM87955  Lilium columbianum Le Roy Abrams, Rimo C. Bacigalupi 8260 Humboldt Between Trinidad and Big Lagoon Comment
  HSC15572  Lilium kelloggii S. V. Thompson 1967-7-23 9 Humboldt E of Freshwater Park Comment
  UC177231  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  SEINET3992215  Lilium pardalinum Unknown 1948-9-5 18196 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1372 Comment
  UC666953  Lilium pardalinum Joseph P. Tracy 1932-7-13 10514 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  UC902038  Lilium pardalinum Joseph P. Tracy 1949-8-26 18518 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC57704  Lilium pardalinum subsp. pardalinum G. L. Clifton, Griswold 1979-7-25 10947 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC15580  Lilium rubescens Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC63174  Lilium rubescens M. A. Baker 1979-7-10 1020 Humboldt S of Dragsaw Spring along USFS Rd. 13N01 Comment
  HSC100558  Lilium washingtonianum Carl C. Marshall Jun 1885 88 Humboldt Coyote Camp. Comment
  CAS-BOT-BC133013  Lilium washingtonianum subsp. purpurascens Doris K. Kildale 1925-7-2 969 Humboldt Bug Creek, Buttes 1219 Comment
  UC1198229  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1932-7-19 10726 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  BLMAR734  Limnanthes douglasii subsp. nivea Jennifer Wheeler 2015-4-28 734 Humboldt Larabee Butte, Roadside pasture at Butte Creek Access Rd 722 Comment
  SD129683  Limnanthes douglasii var. nivea Barbara Ertter, Thomas J. Delendick 1987-5-16 6925 Humboldt Vista Point just west of Berry Summit on Highway 299, ca. 15 miles east of Arcata. 914 Comment
  HSC22528  Limonium californicum Jerry Parker 1968-11-9 228 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata. Comment
  HSC90756  Limonium californicum Gail Newton 1983-8-21 3853 Humboldt Elk River Wildlife Area, Eureka. Comment
  RSA183591  Limonium californicum D. E. Anderson 1963-9-15 2813 Humboldt Humbolt Bay Comment
  UC1198593  Linanthus androsaceus Joseph P. Tracy 1922-6-18 6093 Humboldt Head of Middle Yager Creek Northern Coast Ranges 762 Comment
  UC146168  Linanthus androsaceus Joseph P. Tracy 1908-6 2746 Humboldt nw slope Buck Mountain; Northern Coast Ranges 457 Comment
  UC52532  Linanthus bicolor J. P. Tracy 1902-7-4 1763 Humboldt immediate vicinity Eureka 0 Comment
  UC1198546  Linanthus bolanderi Joseph P. Tracy 1908-6 2819 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  JEPS58421  Linanthus filipes W. L. Jepson 1902-7-11 2016 Humboldt Martin's Ranch South Fork of Trinity River Comment
  RSA0087554  Linnaea borealis subsp. longiflora Joseph P. Tracy 1950-6-21 18857 Humboldt Willow Creek Canyon, along Trinity Highway, east of crossing of Cedar Creek. 762 Comment
  UCD73084  Linnaea borealis var. longiflora Linda M. Barker 1976-6-14 1588 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC46152  Linum bienne J. P. Smith 1973-5-26 6828 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC59444  Linum bienne Kenneth Clark 1979-4-18 110 Humboldt 1 block E on California Ave., in Arcata. Comment
  HSC7384  Lipocarpha occidentalis J. P. Tracy 1931-9-7 9650 Humboldt Trinity River Valley, Willow Creek 152 Comment
  UC1046522  Listera caurina R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3415 Humboldt ridge between Mad River and Redwood Creek; Bald Mountain, Snow Camp 1432 Comment
  HSC59489  Listera cordata var. nephrophylla M. A. Ericksen 1979-4-28 220 Humboldt Near roadside leading to Camp Bouer, Korbel Comment
  CHSC40210  Lithophragma affine L. P. Janeway 1984-5-13 779 Humboldt Along Redwood House Road 1 1/2 mi from the Kneeland/Bridgeville Road. Along South Fork Yager Creek. 762 Comment
  UC1225759  Lobularia maritima Joseph P. Tracy 1946-6-2 17556 Humboldt near Somoa (on Humboldt Bay); Humboldt Bay 6 Comment
  UC1223117  Logfia gallica Joseph P. Tracy 1948-6-13 18038 Humboldt along Larrabee Cr, halfway between Bridgeville and Blocksburg; Larrabee Creek Comment
  CAS-BOT-BC283408  Lolium multiflorum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC1103160  Lolium multiflorum Joseph P. Tracy 1948-6-13 18043 Humboldt 7 mi nw Blocksburg (Larrabee Creek); Larrabee 304 Comment
  HSC10304  Lolium perenne W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  HSC10306  Lolium perenne R. H. Berg 1963-2-27 4 Humboldt Arcata, Fickle Hill area. Comment
  HSC10311  Lolium perenne C. B. Wolf 1927-8-29 1215 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  HSC74113  Lolium perenne M. A. Baker 1980-6-16 1941 Humboldt Near Monks Camp. 1097 Comment
  SEINET194910 Image available Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt Arcata near 10 Comment
  UC1103482  Lolium perenne Joseph P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  HSC39043  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2657 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  HSC26274  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson 1971-5-31 455 Humboldt Dry bar of the Mad River Comment
  HSC63842  Lomatium macrocarpum M. A. Baker 1979-6-26 910 Humboldt S facing ridge Comment
  RSA43875  Lomatium macrocarpum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1677 Comment
  UC906635  Lomatium macrocarpum Joseph P. Tracy 1947-7-5 17780 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC97232  Lomatium macrocarpum Kiera Freeman, Heather J. Perry 2007-6-4 1 Humboldt Cold Springs Camp, 8.0 mi. S of Hwy. 299 on NF1 1372 Comment
  HSC42875  Lomatium tracyi Barbara Kelly 1977-7-16 537 Humboldt 1/4 mi. in from Horse Mtn. Road, 1/2 mi. below turnoff to summit, near end of unused gravel road Comment
  HSC47949  Lomatium tracyi Brad Klipfel 1974-5-8 326 Humboldt Horse Mountain Comment
  UC162919  Lomatium utriculatum Joseph P. Tracy 1911-7-7 3374 Humboldt 3 mi. n.w. junction of Willow Creek w/ Trinity R. (at meadows on mt. side, and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CAS-BOT-BC240474  Lonicera hispidula A. A. Heller 1923-7-10 13799 Humboldt Along a small stream emptying into the Eel River between Scotia and Pepperwood Comment
  CAS-BOT-BC240477  Lonicera hispidula Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  UC35427  Lonicera hispidula var. vacillans Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UCSB15522  Lonicera involucrata Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  CAS-BOT-BC241488  Lonicera involucrata var. ledebourii Ashley C. Browne 1938-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  CHSC23308  Lonicera involucrata var. ledebourii Robert F. Thorne; P. Everett 1965-8-9 35301 Humboldt Big Lagoon 3 Comment
  HSC3922  Lonicera involucrata var. ledebourii C. B. Wolf 1927-8-29 1204 Humboldt Near mouth of Bear River, Capetown. Comment
  HSC62683  Lonicera involucrata var. ledebourii Michelle Stevens 1979-4-21 54 Humboldt Ponds across from Clam Beach. 0 Comment
  HSC63083  Lonicera involucrata var. ledebourii David Wheeler 1979-4-20 71 Humboldt Clam Beach Ponds, N pond, 0.25 mi. S of Crannel Rd. between the frontage road and Hwy. 101 Comment
  HSC89435  Lonicera involucrata var. ledebourii P. A. Daly 1984-5-13 24 Humboldt Along trail/Rd. at Trinidad Head. 61 Comment
  RSA18019  Lonicera involucrata var. ledebourii C. B. Wolf 1927-8-22 770 Humboldt Big Lagoon. Comment
  RSA21019  Lonicera involucrata var. ledebourii C. B. Wolf 1937-9-12 9327 Humboldt Dry Lagoon State Park; base of coastal cliffs. 5 Comment
  CDA42186  Lonicera involucrata var. ledebourii Gordon Leppig 1998-5-11 758 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  CAS-BOT-BC200915  Lotus Doris Kildale Gillespie 1931-6-7 10589 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  HSC98250  Lotus aboriginus D. E. Anderson 1963-9-29 2850 Humboldt Fish Lake. Comment
  JEPS55451  Lotus formosissimus W. L. Jepson 1902-6-24 1922 Humboldt Eureka to Arcata Comment
  HSC71602  Lotus humistratus M. A. Baker 1980-6-26 2417 Humboldt Near Sims Creek 610 Comment
  UC169330  Lotus humistratus Joseph P. Tracy 1912-7-26 3833 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA293205  Lotus micranthus J. P. Smith 1973-5-26 6837 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC33561  Lotus oblongifolius var. oblongifolius Chesnut and Drew Aug 1888 Humboldt mouth of Grouse Creek Grouse Creek Comment
  UC726597  Lotus purshianus var. purshianus A. A. Heller 1923-7-9 Humboldt between Eureka and Fortuna Comment
  UC1223415  Lotus purshianus var. purshianus Joseph P. Tracy 1938-8-7 16102 Humboldt 5 mi n Garberville Comment
  UCD106710  Lotus uliginosus R. Tofsrud 1948-7-1 s.n. Humboldt Between Fields Landing and Loleta. Comment
  UCSB30590  Lotus uliginosus Edwards, David 1974-8-12 Humboldt North side of 7th St. just W of its overpass of U.S. 101, Arcata 18 Comment
  HSC43849  Lotus unifoliolatus var. unifoliolatus Maralyn O'Meara 1974-7-17 558 Humboldt Kneeland Comment
  SEINET11810522  Luina hypoleuca J. P. Tracy 1944-1 17489 Humboldt near Romanzoffia Creek, Willow Creek Canyon, along Trinity Highway 366 Comment
  UC15888  Lupinus adsurgens Chesnut and Drew 1888-7-21 Humboldt South Fork Mt.; ; S of Fort Mt., Humboldt Co. Comment
  UC170029  Lupinus affinis Joseph P. Tracy 1912-6-9 3678 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC99728  Lupinus albicaulis M. A. Baker 1979-6-7 797 Humboldt Along road to Telescope Peak next to stream between Telescope Peak and Snow Mtn. 915 Comment
  SEINET10488366  Lupinus albicaulis John O. Sawyer, R. J. Cole 1977-7-3 Sawyer 3016 Humboldt Hoopa quad. T8n,r5e,sec.14. Environs of mud spring. Big hill road. White fir Forest (f.s.8n01) 1524 Comment
  UC303158  Lupinus albicaulis var. shastensis Joseph P. Tracy 1923-6-19 6298 Humboldt near Kings Peak (Wilder Ridge); Northern Coast Ranges, near Kings Peak, Wilder Ridge 762 Comment
  CAS-BOT-BC196223  Lupinus albifrons var. eminens Doris K. Kildale 1926-4-30 1929 Humboldt Fruitland Hill - Harris road divided between north & south forks of Eel River Comment
  HSC32521  Lupinus andersonii Thomas W. Nelson, James Nelson 1973-5-28 955 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC40973  Lupinus arboreus Linda M. Barker 1976-5-13 1494 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  SEINET10452623  Lupinus arboreus Mary Susan Taylor 1982-10-24 Taylor 5183 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  RSA246780  Lupinus arboreus var. arboreus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35328 Humboldt Clam Beach County Park: along highway. 3 Comment
  RSA296737  Lupinus arboreus var. arboreus J. P. Smith, T. W. Nelson 1977-6-30 9218 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA44063  Lupinus arboreus var. arboreus W. Bridge Cooke 1942-7-4 16358 Humboldt Roadside along Highway 101, 4 miles south of Trinidad. Comment
  HSC38190  Lupinus bicolor Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  HSC47063  Lupinus bicolor J. P. Smith, Thomas W. Nelson 1977-6-30 9198 Humboldt Samoa Peninsula just E of the drag strip. Comment
  BLMAR611  Lupinus bicolor Jennifer Wheeler 2011-4-22 611 Humboldt King range, Strawberry Rock 243 Comment
  HSC70982  Lupinus latifolius subsp. viridifolius Gail Newton 1980-7-22 1663 Humboldt Near Devils Backbone 1554 Comment
  HSC63290  Lupinus latifolius subsp. viridifolius M. A. Baker 1979-6-27 938 Humboldt Jct. of Tish Tang A Tang Creek and trail through Grogan's Hole Comment
  SEINET12154580  Lupinus lepidus H. P. Chandler 1901-1 1498 Humboldt Klamath River 427 Comment
  SD53194  Lupinus littoralis Darley F. Howe 1962-5-22 3259 Humboldt 0.5 mile north of Orick on Highway 101. 29 Comment
  SEINET10488747  Lupinus littoralis Charles Piper Smith 1931-8-31 Smith 4505 Humboldt Mckinleyville, sand dunes - north. Comment
  OBI36369  Lupinus nanus David J. Keil 1983-7-1 17271 Humboldt Ca. 13 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UC1197271  Lupinus nanus Joseph P. Tracy 1913-6-11 4090 Humboldt near Little Van Duzen Bridge 762 Comment
  UC180172  Lupinus rivularis Joseph P. Tracy 1914-6-14 4507 Humboldt Hydesville; Northern Coast Ranges, Hydesville 60 Comment
  RSA414240  Lupinus sellulus subsp. ursinus Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-7-4 3583 Humboldt Along west side of road north from Alder Springs. 1524 Comment
  UC1488744  Lupinus tracyi Marc Baker 1980-7-19 2987 Humboldt near Bret Hole 105 Comment
Read comments
Jul 7 2009
  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
  CDA39249  Luzula parviflora J. Riddell 2002-4-21 47 Humboldt Prairie Creek State Park, Gold Beach roadside. Comment
  HSC70988  Luzula parviflora Gail Newton 1980-7-20 1649 Humboldt Near Bell Swamps. 1426 Comment
  UC1157634  Luzula parviflora Milo S. Baker 1947-8-6 11870 Humboldt Prairie Cr. State Park Comment
  UCSB28099  Luzula subsessilis Phelps, M. 1972-3-19 Humboldt Near Old Somerville Homestead; Elk Ridge 609 Comment
  SEINET179615 Image available Lycopodium clavatum H. E. Parks, WK Parks 1932-7-30 1132 Humboldt 'Camp 21' Hammond Lumber Company Trinidad Comment
  CHSC26464  Lysichiton americanus J. Detzer 1977-4-8 4 Humboldt S end of Patricks Point State Park, ca. .2 mi w of Hwy. 101 and 5 mi n of Trinidad. 60 Comment
  SBBG25590  Lysichiton americanus E. R. Blakley 1966-8-17 6795 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  HSC39969  Lysichiton americanus Linda M. Barker 1976-3-22 1346 Humboldt 3 mi. W of Arcata, near rifle range at NE corner Comment
  JEPS42814  Lysichiton americanus W. L. Jepson 1902-6-24 1925 Humboldt Eureka Hupa Indian Reservation, Eureka Comment
  UC162336  Lythrum hyssopifolia Joseph P. Tracy 1911-7-8 3471 Humboldt near mouth of Willow Creek (Northern Coast Ranges, Valley of Trinity River); Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC15932  Lythrum hyssopifolia Lincoln Constance 1934-5-27 693 Humboldt S Fork of Eel River, S end of Dyerville Bridge 46 Comment
  UC89370  Madia elegans Harley P. Chandler June 1901 1409 Humboldt Klamath River 243 Comment
  CAS-BOT-BC342804  Madia elegans Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, east side of Klamath River Comment
  CAS-BOT-BC342807  Madia elegans Lincoln Constance; Reed C. Rollins 1942-5-11 2874 Humboldt California North Coast Ranges. Hoopa Valley 5 miles south of Hoopa 121 Comment
  SD88396  Madia elegans subsp. vernalis Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville Comment
  UC166102  Madia exigua J. P. Tracy 1901-6-30 1208 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC343026  Madia gracilis Doris K. Kildale 1928-6-24 7076 Humboldt Redwood Creek at Berry's 289 Comment
  HSC57180  Madia gracilis Griswold, Butler 1979-7-10 6211 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  JEPS7503  Madia gracilis Joseph P. Tracy 1937-7-29 15596 Humboldt w slope near top South Fork Mountain (at Hyampom Trail) 1676 Comment
  UC1199396  Madia gracilis Joseph P. Tracy 1912-6-9 3653 Humboldt Alton Northern Coast Ranges 30 Comment
  HSC98983  Madia gracilis Cara Witte 2007-7-3 403 Humboldt National Forest 1 on Kinsey Ridge. 1 1/2 miles north of intersection with 4N09. 1396 Comment
  POM214875  Madia gracilis Joseph P. Tracy 1932-7-13 10494 Humboldt Klamath Mountains: Trinity Summit, open ground at Corral Prairie 1524 Comment
  POM232321  Madia gracilis subsp. gracilis I. L. Wiggins 1930-7-11 4679 Humboldt Near Samoa Comment
  POM362198  Madia minima Thomas W. Nelson, Jane P. Nelson 1977-7-4 3608 Humboldt Along road north from Alder Spring 1555 Comment
  JEPS17994  Madia sativa George B. Rossbach 1955-6-10 550 Humboldt near Humboldt Bay (lagoon and lighthouse (between Fairhaven and end of sandy point off Eureka) Comment
  HSC90857  Maianthemum dilatatum M. Roantree 1985-5-24 64 Humboldt E side of Trinidad Head Comment
  HSC15641  Maianthemum racemosum subsp. amplexicaule Greg Bos 1965-5-15 281 Humboldt 4 mi. W of Berry Summit along Hwy. 299 671 Comment
  HSC74330  Maianthemum racemosum subsp. amplexicaule Gail Newton 1980-6-16 145 Humboldt Near Monks Camp. 1097 Comment
  CAS-BOT-BC511459  Maianthemum racemosum subsp. amplexicaule Huron H. Smith 1911-6-6 3795 Humboldt Field Museum of Natural History, Vances Camp 19 Comment
  HSC100563  Maianthemum racemosum subsp. amplexicaule Carl C. Marshall Apr 1886 128 Humboldt Damp woods. Comment
  HSC57027  Maianthemum stellatum Overton, Butler 1979-7-24 9648 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC98155  Maianthemum stellatum F. B. Plett 1963-4-21 19 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  CAS-BOT-BC347408  Malacothrix floccifera Don Hagar 1957-6-25 89 a Humboldt Brush Mountain, 3.5 miles south-southwest of Willow Creek 792 Comment
  HSC97226  Malacothrix floccifera Kiera A. Freeman, Heather J. Perry 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1372 Comment
  UC33287  Malacothrix floccifera C. C. Marshall 1888-1-1 Humboldt Comment
  HSC100442  Malacothrix obtusa Carl C. Marshall Jun 1887 458 Humboldt Near Harris. Comment
  CAS-BOT-BC540127  Malus domestica Jay B. Walker 1995-4-26 1386 Humboldt Six Rivers National Forest. Hwy 36. 2km W of town of Cobbs. 800 Comment
  RSA319241  Malus fusca Patricia Wilder 1968-8-21 4387 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC15993  Malva nicaeensis Paul Shields 1955-6-3 Humboldt HSC campus Comment
  UC180180  Malva parviflora Joseph P. Tracy 1914-6-26 4518 Humboldt Northern Coast Region, Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC7029  Marah oregana D. A. Shally 1965-5-15 46 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  OBI35884  Marah oregana David J. Keil 1983-7-1 17293 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  UC1198476  Marah oregana Joseph P. Tracy 1927-6-8 8109 Humboldt Trinidad Northern Coast Ranges 60 Comment
  HSC26658  Marah oregana Thomas W. Nelson 1973-5-22 920 Humboldt Growing on C.S.U.H. campus Comment
  UC1199283  Matricaria discoidea Joseph P. Tracy 1933-5-20 12217 Humboldt Capetown 30 Comment
  UC1197424  Medicago lupulina Joseph P. Tracy 1911-7-10 3493 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1197432  Medicago lupulina Joseph P. Tracy 1915-7-25 4662 Humboldt Eureka Northern Coast Region 0 Comment
  HSC14977  Medicago polymorpha D. B. Bader 1963-3-29 15 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  UC1145133  Melica aristata Joseph P. Tracy 1937-7-25 15549 Humboldt 2 mi e Grove's Prairie (on ridge); Trinity Summit 1524 Comment
  HSC10337  Melica californica J. A. Waller 1965-5-2 31 Humboldt Along Hwy. 96 near Willow Creek. Comment
  HSC10347  Melica geyeri A. H. Murphy 1951-4-18 21 Humboldt Ft. Seward next to railroad right of way. 183 Comment
  HSC75472  Melica geyeri J. O. Sawyer 1980-7-18 3619 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA123518  Melica geyeri H. S. Yates 1936-6-17 5693 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UCD87357  Melica geyeri Joseph. P. Tracy 1942-6-2 17099 Humboldt 2 miles north of Bridgeville. 609 Comment
  CAS-BOT-BC281325  Melica harfordii W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  UC1103756  Melica harfordii Joseph P. Tracy 1919-5-31 5172 Humboldt Willow Creek Northern Coast Ranges, Trinity River (hill slopes at w side of Trinity River) 152 Comment
  UC188886  Melica harfordii J. Burtt Davy 1899-6-19 5657 Humboldt Hoopa Mt. summit; North Coast Ranges Comment
  CAS-BOT-BC281025  Melica stricta Joseph P. Tracy 1935-7-30 14377 Humboldt W side at top of Salmon Summit 2103 Comment
  CAS-BOT-BC262469  Melica subulata Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC75480  Melica subulata J. O. Sawyer 1980-7-18 3627 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  CHSC31285  Melilotus albus Mark Stopher 1980-7-18 119 Humboldt Occasional plants along route 101 south of Eureka near Elk River. Comment
  UC673063  Melilotus albus Joseph P. Tracy 1933-8-13 1 Humboldt along river near Blue Lake; Mad River 15 Comment
  HSC15012  Melilotus officinalis Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  UC577386  Melissa officinalis Joseph P. Tracy 1927-11-24 8395 Humboldt farmyard Carlotta 60 Comment
  POM174071  Mentha canadensis Joseph P. Tracy 1918-9-29 5105 Humboldt South Fork of Eeel River 4 miles above the mouth. Comment
  UC527824  Menziesia ferruginea Ira L. Wiggins 1932-6-18 5866 Humboldt 2 mi e of Bayside (along Jacoby Creek); Jacoby Creek Comment
  HSC102515  Micranthes nidifica M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1501 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  CAS-BOT-BC348376  Micropus californicus var. californicus M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles n. of Garberville Comment
  HSC32925  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1973-5-28 968 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1199339  Micropus californicus var. californicus Joseph P. Tracy 1932-5-1 9868 Humboldt vicinity Garberville 121 Comment
Read comments
Sep 13 2009
  CAS-BOT-BC322677  Microseris laciniata S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3482 Humboldt Highway about one mile west of Bridgeville Comment
  SEINET7016944  Microseris paludosa Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC71036  Microsteris gracilis Thomas W. Nelson 1977-4-20 3328 Humboldt Along FS Rd. 1N15 at bridge over Mad River 457 Comment
  SEINET200379  Microsteris gracilis J. P. Tracy 1930-5-4 8692 Humboldt Larrabee Valley 701 Comment
  CDA41683  Mimulus alsinoides B. F. Kemp 1958-4-14 s.n. Humboldt Winters Ranch, north of Bald Hills School, near Eureka. 0 Comment
  JEPS10240  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1934-6-19 13235 Humboldt Carlotta 60 Comment
  RSA14133  Mimulus aurantiacus var. aurantiacus Elmer I. Applegate 1923-9-12 3988 Humboldt Stone Lagoon, below Orick Comment
  HSC20758  Mimulus dentatus R. E. Hafenfeld 1965-5-9 51 Humboldt Fern Canyon, Gold Bluff Beach Comment
  POM268160  Mimulus dentatus H. C. Cantelow 1936-5-18 s.n. Humboldt North of Orick. Comment
  HSC90636  Mimulus guttatus Gail Newton 1983-6-5 3554 Humboldt Elk River Wildlife Area, Eureka Comment
  JEPS10474  Mimulus guttatus Lincoln Constance 1934-5-26 683 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  HSC100671  Mimulus guttatus Carl C. Marshall May 1886 127 Humboldt Damp places throughout Humboldt Bay. Comment
  HSC22498  Mimulus guttatus G. Ghatala 1967-7-18 6 Humboldt Comment
  UC1063548  Mimulus inodorus H. L. Person 1932-8-1 Humboldt Korbel Eureka Quadrangle Comment
  UC162578  Mimulus inodorus Joseph P. Tracy 1911-7-7 3409 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UCD20373  Mimulus kelloggii K. Esau 1935-4-23 s. n. Humboldt Humboldt County, Fort Seward. Comment
  HSC103093  Mimulus kelloggii Sydney Carothers 2014-6-10 9 Humboldt Six Rivers National Forest, Lassics Botanical Area. Along trail to Mt. Lassic approaching Peak 1. 1707 Comment
  UC162580  Mimulus layneae Joseph P. Tracy 1911-7-8 3443 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC74503  Mimulus moschatus Gail Newton 1980-8-10 2052 Humboldt Near Blake Mtn. 1707 Comment
  UC582706  Mimulus nasutus Joseph P. Tracy 1927-3-27 7850 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC1173697  Mimulus pilosus Joseph P. Tracy 1939-9-24 16502 Humboldt near Blue Lake; Mad River 15 Comment
  HSC98812  Mimulus pulsiferae Cara Witte 2008-7-7 833 Humboldt Horse Mountain Botanical Area. 1/4 mile east of intersection National Forest 1, Forest Service Roads 6N36 and 6N38. 1415 Comment
  UC1196805  Mimulus pulsiferae Harold E. Parks and Joseph P. Tracy 1934-6-27 11087 Humboldt Grouse Mt. 1432 Comment
  HSC20826  Mimulus pulsiferae J. P. Tracy 1934-6-27 11089 Humboldt Grouse Mtn.; near 'Cold Springs 1433 Comment
  CAS-BOT-BC388624  Minuartia douglasii Doris K. Kildale 1928-5-27 5954 Humboldt Kneeland Prairie 853 Comment
  CAS-BOT-BC388627  Minuartia douglasii Joseph P. Tracy 1930-6-21 8783 Humboldt Larrabee Valley 731 Comment
  HSC32281  Minuartia douglasii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5631 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC388631  Minuartia douglasii Thomas W. Nelson; James L. Nelson 1980-6-10 5413 Humboldt Six Rivers National Forest. Along Swayback Ridge Road 2.5 miles north of junction with road 1S07 1463 Comment
  RSA12523  Minuartia douglasii C. B. Wolf 1934-7-3 5913 Humboldt 21 miles from Orick on road to Weitchpec Road. Comment
  JEPS87058  Minuartia nuttallii subsp. gregaria Dean W. Taylor 1991-8-15 12294 Humboldt ridge 1 mi w Horse Mountain; North Coast Ranges 1493 Comment
  RSA168879  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1950-7-19 19190 Humboldt 1-2 miles south of Elk Valley, 2 miles southeast of Chimney Rock on extreme head of Blue Creek 1402 Comment
  UC902093  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt along trail from Hoopa to summit (near Box Camp); Trinity Summit 1524 Comment
  HSC71160  Mitella diversifolia Thomas W. Nelson 1977-6-15 3422 Humboldt Along USFS rd connecting FS 6N01 to 5N10, just N of Clear Lake 1372 Comment
  UC1198862  Mitella ovalis Joseph P. Tracy 1918-6-16 4956 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC433031  Mitella ovalis Volney Rattan 1883-6-1 s.n. Humboldt Freshwater Comment
  UC545828  Mitella ovalis Victor Duran 1933-5-11 3404 Humboldt 6 mi w Bridgeville; Van Duzen River 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
  HSC4066  Moehringia macrophylla Elrid H. Spinas 1948-5-15 1 Humboldt Horse Mtn. Comment
  HSC4287  Moehringia macrophylla Lincoln Constance 1934-6-19 908 Humboldt Near summit of Grasshopper Peak, S Fork Eel River, Bull Creek region 915 Comment
  HSC14275  Monardella odoratissima Doris K. Kildale 1927-7-22 3814 Humboldt Lasseck's Peak Comment
  UC1239678  Monardella odoratissima subsp. pallida Joseph P. Tracy 1932-7-12 10436 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC97456  Monardella odoratissima subsp. pallida Cara Witte 2007-6-12 240 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1360 Comment
  UC1239675  Monardella odoratissima subsp. pallida Joseph P. Tracy 1942-9-6 17310 Humboldt South Fork Mountain, near McKay Camp. 1676 Comment
  SEINET13948727 Image available Monardella villosa H. Lewis 1940-1 Humboldt 1 mi N of Richardson Grove State Park Comment
  RSA0022793  Monardella villosa subsp. subserrata C. Epling, Wm. Robinson 1935-7-24 s.n. Humboldt Dyerville. Comment
  UC177170  Monardella villosa subsp. villosa Joseph P. Tracy 1912-8-1 3961 Humboldt Opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC63752  Monardella villosa subsp. villosa H. M. Hall Oct. 1899 Humboldt Comment
  CAS-BOT-BC444801  Montia diffusa Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2615 Humboldt Above Van Duzen River, 1 mile below Dinsmore's. 762 Comment
  SEINET11942541  Montia diffusa H. P. Chandler 1901-1 1271 Humboldt Redwood Belt, North Coast Ranges 152 Comment
  UC275281  Montia howellii Joseph P. Tracy 1923-6-20 6307 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  CAS-BOT-BC445157  Montia parvifolia Doris K. Kildale 1928-6-24 5263 Humboldt Redwood Creek at Berry's 289 Comment
  RSA739606  Montia parvifolia John Dittes, Josephine Guardino 2003-6-7 2003 -64 Humboldt Outer N coast Range, 2.9 air mile NW of Legget, 5.2 air mile SE of Piercy, shaded rocks on eastern bank of S Fork Eel River. 183 Comment
  RSA87679  Montia parvifolia L. R. Abrams, Rimo Bacigalupi 1922-6-25 8282 Humboldt Big Lagoon S of Quick Comment
  CAS-BOT-BC445154  Montia parvifolia A. M. Vollmer; L. Beane 1951-6-11 142 Humboldt Along Van Duzen River, at Bridgeville Comment
  HSC17671  Montia parvifolia Doris K. Kildale 1925-6-14 671 Humboldt Yager Comment
  HSC73730  Muhlenbergia filiformis M. A. Baker 1980-7-22 3093 Humboldt Near Grogan Hole. 1676 Comment
  SEINET12275673  Myosotis discolor J. P. Tracy 1942-1 17354 Humboldt 1 mi NE of Garberville, on road to Harris 305 Comment
  CHSC162  Myosotis latifolia S. Ptomey 1911-5-1 Humboldt Comment
  SDSU19202  Myosotis latifolia Michael G. Simpson, Michael Mayer 2008-5-28 3016 Humboldt Upland above College Cove, Trinidad State Beach, along path to beach, down from south parking lot. 61 Comment
  HSC37855  Myosotis micrantha Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay Comment
  JEPS30059  Myrica californica Mr. and Mrs. George Parrish 1930-5-21 Humboldt Trinidad Comment
  JEPS109582  Myriophyllum hippuroides Dean W. Taylor 2002-9-12 18342 Humboldt Lake Prairie, remnant of the original bog vegetation on the eastern end of the lake 1097 Comment
  UCD87817  Nassella lepida D. W. Cooper 1956-4-27 s.n. Humboldt Mattole area. Around Petrolia. Comment
  HSC6893  Nasturtium officinale P. W. Shields 1955-6-16 Humboldt HSU campus Comment
  UC162572  Navarretia atractyloides Joseph P. Tracy 1911-7-4 3302 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, Trinity River, Willow Creek 182 Comment
  UC1197896  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1933-7-9 12646 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC908872  Navarretia squarrosa Joseph P. Tracy 1935-7-18 14103 Humboldt Table Bluff 6 Comment
  JEPS70475  Navarretia squarrosa Lincoln Constance 1934-6-25 931 Humboldt across road Collin's Englewood Campground (on e side of road at Englewood, main Eel River); Eel River, Bull Creek Region, Englewood Comment
  POM92408  Navarretia squarrosa L. R. Abrams 1922-6-25 8239 Humboldt 2 miles south of Fortuna Comment
  UC1198524  Navarretia tagetina Joseph P. Tracy 1942-7-1 17362 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Northern Coast Ranges, Van Duzen River 762 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
  HSC71028  Nemophila menziesii var. atomaria Thomas W. Nelson 1977-4-20 3320 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  UC24262  Nemophila menziesii var. atomaria Joseph Burtt Davy and Walter C. Blasdale 1899-5 5739 Humboldt Hoopa Valley North-Western California, Hoopa Valley Comment
  HSC26339  Nemophila parviflora Thomas W. Nelson 1971-3-30 360 Humboldt Beside Williams Creek near Ferndale Comment
  UC1103813  Nemophila pedunculata Joseph P. Tracy 1923-4-15 6181 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  UC562592  Nemophila pedunculata Joseph P. Tracy 1927-4-10 7891 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  JEPS12285  Nicotiana attenuata Joseph P. Tracy 1916-9-5 4763 Humboldt 4 mi above South Fork of Eel River mouth; Northern Coast Ranges 60 Comment
  CAS-BOT-BC60546  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 853 Comment
  CAS-BOT-BC60566  Noccaea fendleri subsp. glauca Thomas Nelson 1977-6-15 3437 Humboldt North Coast Ranges. Along old road to ski area. 1371 Comment
  HSC6970  Noccaea fendleri subsp. glauca Lincoln Constance, R. C. Rollins 1942-5-12 2887 Humboldt Klamath River, 7 mi. NE of Weitchpec 122 Comment
  HSC8077  Notholithocarpus densiflorus F. Sandborg, J. Sandborg 1968-7-19 58 Humboldt Bluff Creek near Notice Creek 793 Comment
  UCD110165  Notholithocarpus densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt Near Boynton Prairie. 609 Comment
  SD42287  Notholithocarpus densiflorus var. echinoides Carl B. Wolf 1937-8-13 9239 Humboldt 8 miles east of Hoopa Valley on new road towards trinity summit 1219 Comment
  HSC93223  Oemleria cerasiformis Gordon Leppig 1998-3-9 713 Humboldt Arcata, West End Rd., 0.3 mi. W of Ericson Way 30 Comment
  UC1198785  Oemleria cerasiformis Joseph P. Tracy 1923-4-1 6172 Humboldt Blue Lake; Northern Coast Ranges 60 Comment
  HSC18398  Oemleria cerasiformis Anonymous 1956-5-1 Humboldt Mattole area Comment
  SEINET11915945  Oemleria cerasiformis J. P. Tracy 1950-1 18618 Humboldt 2 mi W of Dinsmore's, Buck Mountain, lower foothills of its NW slope 762 Comment
  CAS-BOT-BC436010  Oenanthe sarmentosa W. R. Dudley 1899-6-21 s.n. Humboldt Near Scotia Comment
  RSA0004549  Oenothera hookeri subsp. wolfii Carl B. Wolf, E. R. Johnson 1934-12-11 6172 Humboldt Redwood Highway just south of Trinidad. 30 Comment
  CAS-BOT-BC171605  Oenothera wolfii L. R. Abrams 1918-6-16 7168 Humboldt Willow Creek Comment
  CHSC70160  Oenothera wolfii David K. Imper 1991-9-4 Humboldt Grown in Eureka garden. Parents collected at junc. Hwy 299 and Big Hill Rd, Hoopa Square 91 Comment
  UC146162  Olsynium douglasii var. douglasii E. Ethel Tracy 1905-5-1 Humboldt Harris Northern Coast Ranges 609 Comment
  JEPS11667  Orobanche californica subsp. californica Joseph P. Tracy 1918-7-1 4970 Humboldt Cape Mendocino, southwestern slopes, fronting the ocean, three miles south of Point of the Cape. Comment
  HSC103084  Orobanche fasciculata Sydney Carothers 2014-6-22 3 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  HSC48820  Orogenia fusiformis Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 34 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC906645  Orogenia fusiformis Joseph P. Tracy 1942-6-23 17252 Humboldt near top Trinity Summit (w. of Water-Dog Lakes) 1828 Comment
  JEPS66566  Orthilia secunda Joseph P. Tracy 1932-7-20 10737 Humboldt Trinity Summit, near Corral Prairie 1584 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
  CAS-BOT-BC6997  Orthocarpus castillejoides var. humboldtiensis Philip Alexander Munz 1925-6-20 9890 Humboldt Eureka Comment
  UC582573  Orthocarpus imbricatus Joseph P. Tracy 1937-7-29 15571 Humboldt near McKay Camp South Fork Mountian (South Fork Mountain); South Fork Mountain 1676 Comment
  POM225846  Orthocarpus lithospermoides M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  HSC56138  Osmorhiza berteroi G. L. Clifton, Terry Griswold 1979-8-1 11959 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC99397  Osmorhiza berteroi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 46 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1197131  Osmorhiza occidentalis Joseph P. Tracy 1947-7-9 17830 Humboldt Arford Cabin (Ski Lodge) Horse Mountain (lower slopes of mt.) Comment
  SD73188  Osmorhiza purpurea Darley F. Howe 1969-6-4 4627 Humboldt 14.6 miles east of Alton on number 36. 89 Comment
  UC1103422  Oxalis albicans subsp. pilosa J. P. Tracy 1901-6-16 1149 Humboldt back of Bucksport 0 Comment
  HSC46169  Oxalis oregana J. P. Smith 1973-5-26 6852 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC49078  Oxalis oregana J. O. Sawyer 1977-4-23 2843 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC69850  Oxalis oregana R. Kalal 1979-5-5 42 Humboldt Fickle Hill Rd., 1.0 mi. E of 11th St. 183 Comment
  CAS-BOT-BC253705  Panicum capillare A. A. Heller 1924-7-20 13864 Humboldt Along the Eel River at Phillipsville Comment
  UC1103787  Parapholis incurva Joseph P. Tracy 15871 Humboldt Samoa Comment
  UC1222446  Parentucellia viscosa H. E. Parks and Joseph P. Tracy 1932-8-13 10348 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  CDA6400  Parentucellia viscosa G. D. Barbe, T. C. Fuller 1974-6-17 1827 Humboldt Murray Field, County Airport, north of Eureka. 0 Comment
  CAS-BOT-BC259728  Paspalum distichum Joseph P. Tracy 1934-7-30 13498 Humboldt Dry Lagoon, on coast near Stone Lagoon 3 Comment
  UC1145169  Paspalum distichum Joseph P. Tracy 1939-10-6 16505 Humboldt w of Sunset Cemetary Eureka (Eureka) 6 Comment
  UC249858  Paspalum distichum Joseph P. Tracy with H. E. Parks 1924-8-3 6779 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  HSC58131  Paxistima myrsinites Gilbert Muth 1979-8-1 12133 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 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
  UC169890  Paxistima myrsinites Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5754 Humboldt Trinity Summit Comment
  HSC20923  Pedicularis densiflora Jack Rockwell 1962-5-13 69 Humboldt N of main highway on logged hillside 632 Comment
  UC1222432  Pedicularis groenlandica Joseph P. Tracy 1925-7-5 7180 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC38091  Pellaea mucronata Thomas W. Nelson, James Nelson 1976-5-30 2612 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC44545  Penstemon anguineus Brad Klipfel 1973-7-15 164 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA43896  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  UC1198046  Penstemon anguineus Joseph P. Tracy 1933-7-27 12869 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC1011933  Penstemon anguineus F. W. Pennell and J. P. Tracy 1940-7-7 26092 Humboldt w Salyer (Grouse Mountain); w of Salyer, Grouse Mountain 1371 Comment
  UC1245389  Penstemon anguineus Joseph T. Gregory 1933-7-16 449 Humboldt nr MacKay Camp (edge of swamp); nr MacKay Camp 1737 Comment
  HSC55674  Penstemon deustus Walter Overton, Marvin Butler 1979-7-25 9891 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC35697  Penstemon laetus subsp. sagittatus Thomas W. Nelson, B. Reinhardt 1975-7-30 2104 Humboldt Along road out Whiting Ridge Comment
  UC169355  Penstemon laetus var. sagittatus Harley P. Chandler 1901-6-14 1472 Humboldt between Orleans and Somes Bar; North Coast Ranges, Klamath River 426 Comment
  HSC56119  Penstemon newberryi subsp. berryi Gilbert Muth 1979-8-1 11894 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC1077  Pentagramma triangularis D. E. Anderson 1965-11-21 4170 Humboldt 3-4 mi. S of Weitchpec along rd. to Hoopa Comment
  HSC79535  Pentagramma triangularis Kenneth Clark 1980-6-14 693 Humboldt On Greywacke outcrop, N fork Dead Man's Gulch 91 Comment
  SEINET12350908  Pentagramma triangularis E. A. York 1990-1-10 2660 Humboldt USGS Redwood Field Station, Arcata Comment
  CAS-BOT-BC71617  Pentagramma triangularis subsp. triangularis Doris K. Kildale 1927-7-3 3650 Humboldt Willow Creek Flat Comment
  UC906650  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1942-9-20 17324 Humboldt 2 mi s Fields Landing 3 Comment
  UC642305  Perideridia howellii Joseph P. Tracy 1939-9-4 16474 Humboldt Larrabee Valley; gully in foothills at edge of valley 731 Comment
  HSC35616  Perideridia oregana Thomas W. Nelson, B. Reinhardt 1975-7-30 2113 Humboldt E of Pilot Rock Comment
  HSC99811  Perideridia parishii subsp. latifolia G. L. Clifton, Terry Griswold 1979-8-1 12020 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1197119  Perideridia parishii subsp. latifolia E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  HSC17526  Persicaria maculosa John Warner Hosking 1968-10-10 Humboldt Clam Beach Comment
  CDA8459  Petasites frigidus var. palmatus E. C. Whitney 1964-4-1 Humboldt Kneeland. 0 Comment
  SEINET11809912  Petasites palmatus J. P. Tracy 1947-1 17670 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  HSC13680  Phacelia bolanderi W. Lanphere 1937-5-25 Humboldt Dyerville Comment
  OBI77760  Phacelia bolanderi Rimo Bacigalupi, G. T. Robbins 1954-6-28 4657 Humboldt Trinity River, 2 mi N of Hoopa, Hoopa Valley Indian reservation 91 Comment
  RSA201448  Phacelia egena Alice Eastwood, J. T. Howell 1937-6-23 4759 Humboldt Dinsmore s. Comment
  HSC44535  Phacelia mutabilis Brad Klipfel 1973-7-1 143 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC203960  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1918-7-1 4983 Humboldt 3 mi s point of the cape; Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC56132  Philadelphus californicus G. L. Clifton, Griswold 1979-8-1 11949 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC76560  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt Summit of U.S. Highway 299 betw. Willow Creek and Blue Lake. Comment
  HSC98094  Philadelphus lewisii Cara Witte 2007-7-11 484 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  UC161489  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3318 Humboldt Willow Creek Northern Coast Ranges (near its mouth, creek is tributary of Trinity River) 304 Comment
  RSA0046936  Philadelphus lewisii Lyman Benson 1928-7-10 397 Humboldt Hills by Humboldt Bay, Fortuna. Mouth of Eel River. 30 Comment
  RSA10145  Phleum alpinum Joseph P. Tracy 1926-7-5 7733 Humboldt Valley of South Yager Creek. 762 Comment
  UC23903  Phlox adsurgens Harley P. Chandler Jun 1901 1534 Humboldt Klamath River North Coars Ranges 426 Comment
  HSC33147  Phlox diffusa Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1243 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  HSC17159  Phlox diffusa D. E. Anderson 1965-4-24 3529 Humboldt Horse Mtn. 1524 Comment
  UC1198566  Phlox gracilis Joseph P. Tracy 1938-6-13 15910 Humboldt Cold Springs Grouse Mountain 1432 Comment
  UC604655  Phlox gracilis Joseph P. Tracy 1938-4-5 15702 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC39682  Phoradendron juniperinum Thomas W. Nelson, Jane Nelson 1976-6-16 2739 Humboldt Just W of Alder Springs. 1524 Comment
  HSC60287  Phoradendron serotinum subsp. tomentosum Phyllis Krieg 1979-5-14 Humboldt Korbel Post Office 30 Comment
  CHSC2362  Phyllospadix scouleri M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  JEPS44662  Physocarpus capitatus Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  UC666856  Physocarpus capitatus Joseph P. Tracy 1935-6-23 13990 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC73448  Picea sitchensis Ira L. Wiggins 1932-6-18 5870 Humboldt Hillside just north of mouth of Little River. Comment
  CAS-BOT-BC78200  Picea sitchensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC45890  Picea sitchensis J. P. Smith 1971-10-6 4969 Humboldt End of Murray Rd. in McKinleyville, Bulk Collection 155 Comment
  POM21764  Picea sitchensis L. R. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad. Comment
  RSA175261  Picea sitchensis Robert F. Thorne 1957-9-3 19011 Humboldt Little River Beach, few miles S of Trinidad. Comment
  UC1198274  Picea sitchensis J. P. Tracy 1901-4-14 1032 Humboldt sand hills of ocean beach at Samoa Samoa (opp. Eureka) Comment
  SEINET10904948  Picris echioides Mary Susan Taylor 1977-8-5 Taylor 1431 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  HSC26813  Pinus jeffreyi J. O. Sawyer 1973-3-12 2477 Humboldt SE of Kerr Peak on Manhart Ranch, Bulk Collection # 44 457 Comment
  CAS-BOT-BC73113  Pinus lambertiana Doris K. Kildale 1926-9-5 2611 Humboldt Lassecks Peaks, Goat Camp 1661 Comment
  HSC98787  Pinus monticola Cara Witte 2008-6-4 679 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  UC650336  Pinus monticola Charles H. Bunting 1940-8-12 56 Humboldt n of, n slope of Bee Mountain Weitchpec; Bee Mountain 1082 Comment
  CAS-BOT-BC72733  Pinus sabiniana Doris K. Kildale 1928-10-7 6753 Humboldt Willow Creek Flat - Trinity River Valley Comment
  HSC71802  Pinus sabiniana M. A. Baker 1980-6-26 2380 Humboldt Near Sims Creek 610 Comment
  UC14939  Piperia elegans Harley P. Chandler Jun 1901 1385 b Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC666984  Piperia unalascensis Joseph P. Tracy 1934-7-18 13433 Humboldt Grouse Mountain 1524 Comment
  HSC63838  Pityopus californicus M. A. Baker 1979-6-26 906 Humboldt N side of ridge near summit Comment
  UC1121030  Pityopus californicus R. Stahelin 1933-7-20 Humboldt Korbel Eureka Quad. (yield Plot #16, se of Riverside Plant) Comment
  UC881326  Plagiobothrys bracteatus Alice Eastwood and John Thomas Howell 1937-6-23 4811 Humboldt Little Van Duzen River Comment
  BLMAR656  Plagiobothrys nothofulvus Jennifer Wheeler 2012-5-2 656 Humboldt King Range, Telegraph ridge 670 Comment
  HSC3765  Plagiobothrys nothofulvus Doris K. Kildale 1926-5-2 1891 Humboldt Willow Creek Rd., Horse Mtn. Divide Comment
  UC1222212  Plagiobothrys reticulatus Joseph P. Tracy 1951-6-24 19536 Humboldt Kneeland Prairie 762 Comment
  UC708087  Plagiobothrys reticulatus C. V. Piper 1921-5-22 5011 Humboldt Eureka Comment
  JEPS60990  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1912-6-9 3680 Humboldt Alton Northern Coast Region 30 Comment
  JEPS60999  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1936-6-28 15009 Humboldt near Murphy Meadows; Bald Mt. 914 Comment
  HSC100408  Plagiobothrys tenellus Carl C. Marshall Apr 1887 372 Humboldt Hoopa Valley. Comment
  UC1222346  Plantago lanceolata Joseph P. Tracy 1951-6-23 19512 Humboldt Willow Creek Trinity River Valley 152 Comment
  CDA6622  Plantago lanceolata T. C. Fuller 1962-8-6 9359 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  RSA245522  Plantago lanceolata Larry E. DeBuhr 1973-4-23 988 Humboldt Richardson Grove Redwood State Park. Comment
  RSA246720  Plantago lanceolata Robert F. Thorne, Percy C. Everett 1965-8-8 35232 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UC1116244  Plantago major Joseph P. Tracy 1942-7-25 17300 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1196134  Plantago major Joseph P. Tracy 1931-9-7 9657 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS7158  Plantago maritima var. californica Joseph P. Tracy 1927-6-26 8219 Humboldt Stone Lagoon 6 Comment
  RSA412592  Plantago purshii var. oblonga H. M. Pollard 1947-8-23 s.n. Humboldt Air Landing Field, west of Orleans. Comment
  HSC53868  Platanthera dilatata Griswold, Butler 1979-7-10 6348 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC55142  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-8-1 12029 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC55213  Platanthera dilatata var. leucostachys Walter Overton 1979-8-1 12369 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC40132  Platanthera dilatata var. leucostachys Thomas W. Nelson, James Nelson 1976-7-28 3083 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  RSA20791  Platanthera leucostachys Carl B. Wolf 1937-8-13 9256 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  UC1196421  Platanthera leucostachys Joseph P. Tracy 1927-8-22 8342 Humboldt near High Prairie (Bald Mountain); Bald Mountain 1066 Comment
  HSC54540  Platanthera sparsiflora Overton, Butler 1979-7-23 9523 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC146079  Platystemon californicus Joseph P. Tracy 1904-4-24 2034 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  HSC16797  Platystemon californicus J. W. Bosworth 1965-4-3 4 Humboldt Samoa sand dunes, 1 mi. SW of Fairhaven Comment
  UC602529  Plectritis brachystemon Joseph P. Tracy 1932-5-22 10117 Humboldt between Miranda and Redway (North Coast Ranges, South Fork of Eel River); North Coast Ranges, South Fork Eel River 91 Comment
  UC1239603  Plectritis congesta Joseph P. Tracy 1933-5-19 12199 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  UC1239577  Plectritis congesta Joseph P. Tracy 1901-5-18 1100 1/2 Humboldt Northern Coast Region, Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  SEINET12327009  Plectritis samolifolia S. C. Dyal 1938-1 739 Humboldt near Capetown Comment
  HSC78623  Poa annua L. P. Janeway, K. Berg 1985-2-22 1199 Humboldt N Spit of Humboldt Bay, near boat ramp and W of Samoa Rd. 12 Comment
  HSC90689  Poa annua Gail Newton 1982-6-10 3593 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC254712  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains. Head of Brett Hole 1828 Comment
  UC1103798  Poa bolanderi Joseph P. Tracy 1947-6-26 17742 Humboldt forest near McKay camp (South Fork Mt); South Fork Mt 1676 Comment
  UCD90568  Poa bolanderi Joseph P. Tracy 1937-7-29 15581 Humboldt South Fork Mountain near McKay camp. 1676 Comment
  UC1132594  Poa bulbosa H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quadrangle Comment
  UC1146601  Poa douglasii Freed W. Hoffman 1946-5-21 1719 Humboldt sand dunes near Eel River Comment
  HSC10723  Poa kelloggii J. P. Tracy 1926-4-25 7415 Humboldt Grizzly Creek on Van Duzen River. Comment
  UC1132646  Poa kelloggii H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quadrangle Comment
  RSA152300  Poa macrantha Joseph P. Tracy 1917-5-30 4799 Humboldt Ocean Beach at mouth of Little River Comment
  HSC10816  Poa pratensis J. W. Johnson 1961-6-12 1425 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC26627  Poa pratensis J. P. Smith, Steve Selva 1970-6-30 4104 Humboldt Comment
  UC1103181  Poa pratensis subsp. pratensis Joseph P. Tracy 1913-6-19 4206 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC1132727  Poa pratensis subsp. pratensis H. S. Yates 1936-5-23 5854 Humboldt 2 mi e of mouth of Mad River; Eureka Quadrangle Comment
  UCD90446  Poa secunda R. Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  CAS-BOT-BC235981  Poa secunda subsp. secunda A. G. Vestal 1937-6-23 s.n. Humboldt Kneeland Prairie Comment
  UC1103169  Poa secunda subsp. secunda Joseph P. Tracy 1921-4-24 5465 Humboldt facing S Fork of Eel River Phillipsville; Northern Coast Ranges 121 Comment
  UC1145121  Poa secunda subsp. secunda Joseph P. Tracy 1936-7-5 15042 Humboldt summit Grouse Mt 1642 Comment
  UC1152045  Poa secunda subsp. secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 mi w Snow Camp (at Beck's Place, Hydesville) 1219 Comment
  UCD90874  Poa secunda subsp. secunda J. B. Davy; W. C. Blasdale 1899-6-19 5658 Humboldt Hoopa Summit. Comment
  HSC31788  Poa trivialis Donald Spalinger 1974-4-20 20 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  UC187224  Poa trivialis J. P. Tracy 1909-6-13 2998 Humboldt 5 mi from its mouth Mad River 30 Comment
  UC277172  Poa trivialis Joseph P. Tracy 1921-4-24 5451 Humboldt Phillipsville Flat, S Fork of Eel River Phillipsville Flat; Northern Coast Ranges 91 Comment
  BLMAR18  Poa unilateralis Brad Barr June, 1982 18 Humboldt King range, Barksdale Table Comment
  UC1988936  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta, five miles east of town, open flat by old Strong's District School House 45 Comment
  UC17439  Polygala californica C. C. Marshall 1888-1 Humboldt Eel River Region Comment
  UC1198084  Polygonum amphibium var. stipulaceum Joseph P. Tracy 1921-8-7 5864 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  UC672975  Polygonum aviculare subsp. depressum Joseph P. Tracy 1940-10-15 16754 Humboldt Willow Creek Canyon, along Trinity Highway 792 Comment
  RSA144208  Polygonum coccineum Peter H. Raven 1961-8-22 16575 Humboldt Chileno Valley Comment
  RSA53801  Polygonum coccineum H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region. Comment
  HSC73538  Polygonum douglasii Gail Newton 1980-7-14 1474 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1222332  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1950-8-8 19282 Humboldt Croghan Hole Trinity Summit 1676 Comment
  UC1713699  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1919-9-18 5237 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC672964  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1930-6-21 8779 Humboldt Larrabee Valley 731 Comment
  UC1222470  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1912-7-31 3941 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 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
  CAS-BOT-BC109183  Polygonum paronychia Greg de Nevers 2001-4-18 12252 Humboldt Lanphere-Christenson dunes, near Arcata. 9 Comment
  HSC17519  Polygonum paronychia D. B. Bader 1963-3-1 19 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC59461  Polygonum paronychia M. A. Ericksen 1979-5-18 296 Humboldt Samoa Dunes, .5 mi. S of Simpson Timber Company plant entrance Comment
  UCSC000204  Polygonum paronychia H. S. Yates 1936-6-16 5656 Humboldt 0.5 mile S.W. of Samoa - Eureka 3 Comment
  UC672941  Polygonum persicaria Joseph P. Tracy 1927-10-8 8387 Humboldt Prairie Creek Boyes Ranch 91 Comment
  HSC98684  Polygonum sawatchense subsp. sawatchense Cara Witte 2007-6-20 312 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  CAS-BOT-BC421009  Polygonum spergulariiforme Doris Kildale 1931-6-6 10872 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  CAS-BOT-BC421011  Polygonum spergulariiforme Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC54719  Polygonum spergulariiforme Overton, Butler 1979-7-26 10094 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  RSA13553  Polygonum spergulariiforme H. E. Parks, Joseph P. Tracy 1930-9-15 767 Humboldt Bald Hills Comment
  SEINET3404070 Image available Polygonum spergulariiforme Joseph P. Tracy 1947-7-9 17835 Humboldt Horse Mountain, Jeffrey Pine Comment
  CAS-BOT-BC71830  Polypodium californicum Donald Branscomb 1958-12-1 s.n. Humboldt Trinidad Comment
  CAS-BOT-BC72040  Polypodium calirhiza Alice Eastwood 1907-4-21 5 Humboldt Trinidad Comment
  HSC1122  Polypodium glycyrrhiza L. H. Myers 1963-2-15 50 Humboldt Sand dunes W of Lanpheres Rd. Mad River Slough area 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
  HSC28927  Polypodium glycyrrhiza Diane Johnson 1972-4-12 Humboldt Butler Valley near Big Bend Rd. Comment
  UC370620  Polypodium glycyrrhiza H. E. Parks 1925-6-17 3233 Humboldt Lawrence Creek Comment
  RSA689965  Polypodium scouleri Charlotte M. Hoak 1936-8-15 376 Humboldt Patricks Point Comment
  CAS-BOT-BC232957  Polypogon australis Peter Rubtzoff 1968-9-4 5959 Humboldt Goulds Bar, S Fork Eel River SE of Weott Comment
  UC1132889  Polypogon australis H. L. Person 1932-5-19 Humboldt near Arcata (<Mendocino cutover area>); Eureka Quad. Comment
  CAS-BOT-BC233076  Polypogon interruptus Doris K. Kildale 1929-5-26 9128 Humboldt Klamath River at Orleans 152 Comment
  HSC10829  Polypogon interruptus Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  UC163618  Polypogon interruptus Jos. Burtt Davy and W. C. Blasdale 1899-5 5495 Humboldt Pepperwood Comment
  HSC45224  Polypogon monspeliensis M. Alcasas 1978-5-27 106 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  UC1103192  Polypogon monspeliensis Joseph P. Tracy 1930-10-12 9206 Humboldt Eel River on gravel bars Alton to Fortuna; Eel River 15 Comment
  UC1145083  Polypogon monspeliensis Joseph P. Tracy 1938-7-12 16051 Humboldt Fields Landing 6 Comment
  UC50476  Polypogon monspeliensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5510 Humboldt near Camp Grant; near Camp Grant Comment
  SEINET10593691  Polypogon monspeliensis Huron H. Smith 1911-1 Smith s.n. Humboldt Comment
  SEINET4889908  Polypogon monspeliensis H. Ch 1901-1 1431 Humboldt North Coast Ranges, Klamath River 335 Comment
  UC1193410  Polystichum munitum P. Zinke 1950-10-11 187 Humboldt 4 mi se Punta Gorda (Lake Ridge); Quadrangle 28C1 243 Comment
  UC906671  Polystichum munitum Joseph P. Tracy 1947-5-24 17688 Humboldt Big Lagoon 12 Comment
  CAS-BOT-BC410007  Populus X parryi Joseph P. Tracy 1932-5-1 9895 Humboldt Vicinity of Garberville 121 Comment
  CAS-BOT-BC102912  Populus trichocarpa Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1103510  Potamogeton foliosus Joseph P. Tracy 1940-10-17 16774 Humboldt 2 to 5 mi e of South Fork (Camp Grant); Eel River 45 Comment
  UC13488  Potamogeton natans W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  HSC62984  Potamogeton natans David Wheeler 1979-4-20 Humboldt Clam Beach Ponds, .25 mi. S of Crannel Rd., between the frontage road and Hwy. 101 Comment
  HSC69532  Potamogeton natans R. Kalal 1979-5-18 76 Humboldt Shallow slough E of Clam Beach County Park 24 Comment
  SEINET8577021 Image available Potamogeton pusillus S. K. Harris 1938-1 808 Humboldt Eel River,near Fernbridge Comment
  HSC44619  Potentilla anserina subsp. pacifica Laura Witherspoon 1977-5-25 Humboldt Manila Comment
  HSC95736  Potentilla anserina subsp. pacifica Steven Lee 2004-4-10 11 Humboldt Drive from intersection of V St. and Samoa Blvd. in Arcata 1/8 mi. towards parking area to S 200 Comment
  CAS-BOT-BC143072  Potentilla anserina subsp. pacifica Kenneth Clark 1980-5-10 652 Humboldt Western beach of Point Delgada 3 Comment
  HSC34288  Potentilla gracilis K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  RSA21654  Potentilla gracilis Carl B. Wolf 1937-6-14 8809 Humboldt North coast range, 1.5 miles N of Kneeland Prairie 823 Comment
  CAS-BOT-BC540160  Potentilla gracilis var. fastigiata Doris K. Kildale 1925-8-17 1232 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  UC418977  Potentilla gracilis var. gracilis H. E. Parks June, 1924 Humboldt Kneeland; Bald Hills, Kneeland Comment
  CAS-BOT-BC508639  Prosartes hookeri L. R. Abrams 1918-6-15 7107 Humboldt Brannan Mt. near Willow Creek Comment
  CAS-BOT-BC517501  Prosartes smithii Volney Rattan 1883-6-4 s.n. Humboldt 3 mi. E Eureka Comment
  HSC22507  Prunella vulgaris subsp. lanceolata J. R. Lippincott 1967-7-16 5 Humboldt Near N Fork Mad River bridge 152 Comment
  UC449938  Prunella vulgaris var. lanceolata Mrs. M. H. Manning 1900-1 Humboldt near Hupa; near Hupa Comment
  CAS-BOT-BC158598  Prunus C. Hart Merriam 1921-7-7 s.n. Humboldt Ridge west of the Van Duzen River Comment
  RSA43864  Prunus virginiana var. demissa H. M. Pollard 1948-8-12 s.n. Humboldt Orleans Comment
  UC169340  Pseudognaphalium californicum Joseph P. Tracy 1912-7-21 3769 Humboldt Alton Northern Coast Region of California, Alton 30 Comment
  HSC35629  Pseudognaphalium stramineum Thomas W. Nelson, James Nelson 1975-8-5 2142 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  JEPS20501  Pseudognaphalium stramineum Lincoln Constance 1934-5-26 665 Humboldt s end Dyerville Bridge (sand and gravel bar of river); South Fork Eel River 45 Comment
  HSC76290  Pseudotsuga menziesii var. menziesii Teresa Prendusi 1981-7-23 358 Humboldt Near Black Mountain. 890 Comment
  JEPS40497  Psilocarphus brevissimus var. brevissimus Joseph P. Tracy 1940-7-7 16674 Humboldt Grouse Mountain 1554 Comment
  CAS-BOT-BC72555  Pteridium aquilinum Ira L. Wiggins 1930-7-11 4684 Humboldt near Samoa Comment
  UC577353  Pycnanthemum californicum Joseph P. Tracy 1926-10-7 7809 Humboldt w side South Fork of Trinity River opposite Limestairs; South Fork of Trinity River Comment
  HSC17978  Pyrola aphylla Chestnut, Drew 1888-7-12 Humboldt Campbell's Comment
  UC153970  Pyrola asarifolia J. P. Tracy 1901-6-30 1191 Humboldt Immediate Vicinity of Eureka 0 Comment
  UC1197569  Pyrola picta Joseph P. Tracy 1913-7-20 4369 Humboldt willow Creek Road neat Tree Creeks. 1066 Comment
  CAS-BOT-BC62630  Quercus chrysolepis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC70748  Quercus chrysolepis R. York 1980-5-17 535 Humboldt Near Le Perron Peak 1066 Comment
  SBBG1304  Quercus chrysolepis H. and M. Dearing 1933-5-16 2792 Humboldt near Garberville Comment
  UC1196524  Quercus garryana Joseph P. Tracy 1924-8-31 6857 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 91 Comment
  HSC98612  Quercus garryana var. garryana Cara Witte 2008-6-13 716 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1382 Comment
  UCD165089  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 22 mi. from Garberville along Alderpoint Rd. 116 Comment
  CAS-BOT-BC104333  Quercus sadleriana Carl B. Wolf 1937-8-13 9261 Humboldt North Coast Range, 12 mi E of Hoopa Valley on New Road towards Trinity Summit 1676 Comment
  HSC76362  Quercus sadleriana Teresa Prendusi 1981-7-9 197 Humboldt Near Cedar Camp. 1268 Comment
  CAS-BOT-BC104538  Quercus vacciniifolia D. E. Breedlove 1961-7-4 648 Humboldt 7 miles W of Willow Creek on US 299 521 Comment
  HSC55598  Quercus vacciniifolia Overton, Butler 1979-7-23 9411 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC74169  Quercus vacciniifolia M. A. Baker 1980-7-23 3187 Humboldt Near Orleans Mtn. 1859 Comment
  UC902026  Quercus vacciniifolia Joseph P. Tracy 1949-8-26 18526 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UCD47406  Quercus vacciniifolia H. L. Mason 1932-7-21 7018 Humboldt East slope of Southfork Mts. On road Arcata to Weaverville, Humboldt County. Comment
Read comments
Oct 6 2006
  CAS-BOT-BC539322  Quercus wislizeni Lois Weeth; Kerry Heise; John M. Tucker 2003-10-21 s.n. Humboldt 22 mi from Garberville along Alderpoint Rd; stop #2 116 Comment
  HSC45584  Ranunculus californicus Diane L. Reed 1978-4-29 40 Humboldt Trinidad Head Comment
  UC1196241  Ranunculus californicus Joseph P. Tracy 1901-4-14 1024 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  HSC79359  Ranunculus californicus Kenneth Clark 1980-3-22 521 Humboldt Ridge above Dead Man's Gulch 152 Comment
  UC162875  Ranunculus californicus Joseph P. Tracy 1901-4-26 1044 Humboldt e Fields Landing; Northern Coast Region, Region about Humboldt Bay, Humboldt H 0 Comment
  CAS-BOT-BC378924  Ranunculus californicus var. californicus J. P. Tracy 1910-5-8 3132 Humboldt immediate vicinity of Eureka 152 Comment
  UC552284  Ranunculus flammula Joseph P. Tracy 1934-7-30 13499 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  UC668066  Ranunculus flammula Joseph P. Tracy 1937-5-30 15312 Humboldt shallow pool near Bosworth's; Larrabee Creek 365 Comment
  BLMAR637  Ranunculus occidentalis Jennifer Anthony-Wheeler 2011-6-21 637 Humboldt Lacks Creek, Pine Ridge Road 914 Comment
  UC486518  Ranunculus occidentalis Parks and Tracy 1930-5-25 859 Humboldt Laribee Valley; along small stream, eastern Humboldt Co. Comment
  HSC31173  Ranunculus occidentalis var. occidentalis D. E. Anderson 1972-6-20 5748 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC73563  Ranunculus occidentalis var. occidentalis Gail Newton 1980-7-14 1500 Humboldt Near Last Chance Ridge. 1219 Comment
  RSA21038  Ranunculus occidentalis var. rattanii Carl B. Wolf 1937-6-19 8907 Humboldt Van Duzen River at Dunns Mill, 5 miles below Bridgeville. 91 Comment
  HSC53862  Ranunculus orthorhynchus Griswold, Butler 1979-7-10 6338 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC162864  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1909-5-31 2982 Humboldt Eureka Comment
  HSC75863  Ranunculus orthorhynchus var. platyphyllus Bill Copeland 1980-6-26 306 Humboldt Near Murphy Meadow 914 Comment
  UC249652  Ranunculus parviflorus Joseph P. Tracy 1922-5-21 6053 Humboldt Blue Lake Northern Coast Ranges (depression by roadside) 30 Comment
  POM126168  Ranunculus parviflorus W. Humboldt 1922-5-21 6053 Humboldt Blue Lake, locally common in depressions by roadside. 30 Comment
  HSC18174  Ranunculus pusillus J. P. Tracy 1903-5-24 1912 Humboldt Alder Point on Eel River 152 Comment
  UC162817  Ranunculus pusillus Joseph P. Tracy 1903-5-24 1912 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  UC535740  Ranunculus repens Eleanor Armstrong 1170 Humboldt Richardson Grove Comment
  UC1196274  Ranunculus uncinatus Joseph P. Tracy 1922-6-5 6085 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC165815  Rhamnus californica subsp. californica Joseph P. Tracy 1911-7-4 3292 Humboldt near mouth of Willow Creek (tributary of the Trinity River); Northern Coast Ranges, Trinity River, Willow Creek 243 Comment
  RSA7735  Rhamnus californica subsp. occidentalis Carl B. Wolf 1927-8-28 1172 Humboldt On grade 9 miles from Willow Creek, Lord Ellis Road to Blue Lake Comment
  UC175733  Rhamnus purshiana Joseph P. Tracy 1912-9-1 3983 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC200390  Rhododendron occidentale var. paludosum Carl B. Wolf 1927-8-28 1174 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  CDA21469  Rhododendron occidentale var. paludosum G. F. Hrusa, T. D. Wilfred 1992-5-5 9374 Humboldt North Coast Ranges; Mckinleyville Azalea Reserve. 30 Comment
  HSC41281  Rhododendron occidentale var. paludosum Brad Klipfel 1974-6-25 442 Humboldt Horse Mtn. Comment
  CAS-BOT-BC433139  Ribes Doris Kildale Gillespie 1931-6-7 10638 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UC1222379  Ribes binominatum Joseph P. Tracy 1950-7-1 18949 Humboldt Cold Springs Grouse Mountain 1432 Comment
  HSC20277  Ribes bracteosum T. W. Beck 1963-4-13 25 Humboldt Camp Bauer, Korbel, near Mad River Comment
  UCR45394  Ribes cruentum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3418 Humboldt Beside State Route 36 just west of Dinsmore at Hwy bridge over Van Duzen River 732 Comment
  HSC97305  Ribes divaricatum var. pubiflorum M. Mesler 2007-3-14 740 Humboldt Blue Lake, Hatchery Rd., 0.6 mi. S of West End Rd. 44 Comment
  RSA152409  Ribes inerme Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond: in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  CAS-BOT-BC168853  Ribes inerme var. klamathense Joseph P. Tracy 1937-4-3 15243 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC667072  Ribes inerme var. klamathense Joseph P. Tracy 1937-4-3 15243 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC56148  Ribes lacustre G. L. Clifton, Griswold 1979-8-1 11990 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  JEPS79965  Ribes lacustre Joseph P. Tracy Jul 16 1930-Jul 19 1930 9078 Humboldt near McKay Camp (Northern Coast Ranges, South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC173368  Ribes lobbii J. H. Thomas 1949-6-13 912 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  HSC40559  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-5-23 2523 Humboldt SW facing slopes 1666 Comment
  RSA0021632  Ribes malvaceum L. R. Abrams, R. C. Bacigalupi 1922-6-25 8293 Humboldt Bluffs north of Big Lagoon. Comment
  HSC20309  Ribes menziesii M. L. Stuart 1965-5-6 64 Humboldt Fern Lake Dam Comment
  HSC20321  Ribes menziesii D. E. Anderson 1962-2-23 1924 Humboldt Grove E of HSC campus Comment
  UC1198931  Ribes menziesii J. P. Tracy 1905-3-26 2153 Humboldt immediate vicinity Eureka 0 Comment
  UC249627  Ribes menziesii Joseph P. Tracy 1921-4-4 5428 Humboldt near Korbel (at Camp Bauer); Northern Coast Ranges 30 Comment
  JEPS49188  Ribes roezlii var. amictum Joseph P. Tracy 1923-3-17 6159 Humboldt Garberville 121 Comment
  RSA0024586  Ribes roezlii var. cruentum Robert F. Thorne, P. C. Everett 1965-8-5 35142 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  HSC20343  Ribes sanguineum D. E. Anderson 1962-2-10 1913 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  HSC41269  Ribes sanguineum Brad Klipfel 1974-6-25 411 Humboldt Horse Mtn. Comment
  JEPS43790 Image available Ribes sanguineum David G. Forbes 1966-4-4 66430 -A Humboldt 1 1/2 mi n Big Lagoon (State Park Highway 101) 1 Comment
  CAS-BOT-BC144689  Ribes sanguineum var. glutinosum C. Epling; Wm. Robison 1935-7-22 s.n. Humboldt Patrick's Point Comment
  HSC18478  Ribes sanguineum var. glutinosum Jana Kattenhorn 1971-2-22 189 Humboldt HSC campus, E side of one way rd. between Jolly Giant Complex and campus Comment
  HSC40407  Ribes sanguineum var. glutinosum Linda M. Barker 1976-1-24 1311 Humboldt 3 mi. W of Arcata Comment
  JEPS79968 Image available Ribes sanguineum var. glutinosum Joseph P. Tracy 1949-4-10 18281 Humboldt North Coast Ranges, Redwood Creek, at Berry's Redwood Creek; North Coast Ranges, Redwood Creek 365 Comment
  UC1215537  Ribes sanguineum var. glutinosum D. E. Anderson 1962-1-12 1907 Humboldt along road to Lanphere Ranch Comment
  RSA0018249  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-3-24 2945 Humboldt Fleener Creek bluff. Comment
  HSC103229  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-23 26 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC56193  Ribes viscosissimum Gilbert Muth 1979-8-1 12134 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC65645  Ribes viscosissimum J. P. Smith, J. O. Sawyer 1975-6-2 8208 Humboldt Six Rivers National Forest, W of Goat Hill Comment
  HSC47611  Rigiopappus leptocladus J. P. Smith 1977-4-23 9028 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC1561989  Romanzoffia californica Barbara Ertter with Thomas J. Delendick 1987-5-16 6937 Humboldt ca. 20 airmiles e. Arcata (3. mi. e. of Berry Summit on Hwy. 299, s. side of rd. above Willow Creek) 800 Comment
  UC552249  Romanzoffia californica Joseph P. Tracy 1928-4-29 8424 Humboldt Prairie Creek North Coast Ranges, Prairie Creek 60 Comment
  UC775204  Romanzoffia tracyi J. P. Tracy and H. E. Parks 1933-5-9 11008 Humboldt Vicinity of Trinidad; bluff near ocean; vicinity of Trinidad, Humboldt Co. 15 Comment
  CAS-BOT-BC75023  Rorippa palustris var. hispida Henry M. Pollard 1947-8-21 s.n. Humboldt Klamath River near Camp Creek, Orleans region. Comment
  OBI5836  Rosa eglanteria Carl B. Wolf 1931-8-28 2363 Humboldt 1/8 mi from Rohnerville on road to Fortuna 30 Comment
  CAS-BOT-BC146484  Rosa gymnocarpa Joseph P. Tracy 1936-8-7 15107 Humboldt Trinity Summit, 2 miles southeast of Devil's Hole 1584 Comment
  CAS-BOT-BC146487  Rosa gymnocarpa Doris K. Kildale 1927-5-13 3176 Humboldt Redwood Creek at Berry's 289 Comment
  HSC44333  Rosa gymnocarpa Brad Klipfel 1975-6-17 678 Humboldt Horse Mtn. Comment
  UC1199036  Rosa gymnocarpa Joseph P. Tracy 1908-6 2730 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC98839  Rosa gymnocarpa var. gymnocarpa Cara Witte 2008-6-27 767 Humboldt Along National Forest 1 on Kinsey Ridge. 1.5 mi. NE of intersection with 4N09. 1317 Comment
  SBBG3090  Rosa nutkana M. J. Cody 1938-7-14 Humboldt 2 mi N of Trinidad Comment
  UC1541247  Rosa nutkana var. nutkana H. E. Parks July 1933 4698 Humboldt vicinity of Trinidad Comment
  HSC19623  Rosa rubiginosa D. E. Anderson 1965-9-5 4096 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  JEPS45684  Rosa spithamea Joseph P. Tracy 1925-7-12 7196 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC162328  Rosa spithamea Joseph P. Tracy 1911-7-11 3514 Humboldt hillside on Supply Creek Northern Coast Ranges, Hoopa Valley 182 Comment
  UCD17926  Rubus H. Olmo; T. S. Mallah 1953-4-3 53 61 Humboldt California. Humboldt County: 0.5 miles south of cemetary alongside highway in Rohnerville. East of airport. Comment
  POM366457  Rubus laciniatus Thekla Mohr 1900-07 s.n. Humboldt Eel River Comment
  HSC58030  Rubus leucodermis G. L. Clifton 1979-7-31 11850 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC19666  Rubus parviflorus R. A. Rasp 1964-5-20 47 Humboldt HSU campus, beside Jolly Giant Creek. Comment
  HSC59138  Rubus parviflorus Terry Roth 1979-5-20 62 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  JEPS47713  Rubus parviflorus Mrs. George Parrish 1930-5-21 Humboldt Trinidad Comment
  UCR32042  Rubus parviflorus David J. Keil 1983-7-1 17292 Humboldt Between Ferndale & Bear River Ridge Road along Mattole Road Comment
  SEINET3111190  Rubus parviflorus var. parviflorus Steve Selva, Roger Jensen 1974-8-28 98 Humboldt Redwood Forest behind Humboldt State University, Arcata. Comment
  HSC37377  Rubus spectabilis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 503 Humboldt Along Lost Man Creek. 38 Comment
  HSC19694  Rubus ursinus Lincoln Constance 1934-5-29 727 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  HSC39999  Rubus ursinus J. O. Sawyer 1970-6-27 2306 Humboldt Site 318. 1494 Comment
  HSC59598  Rubus ursinus J. P. Smith, J. O. Sawyer 1974-6-2 7650 Humboldt 1372 Comment
  HSC90634  Rubus ursinus Gail Newton 1982-6-1 3571 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC154255  Rubus ursinus J. P. Tracy 1904-7-31 2133 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UCD17617  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 047 Humboldt California. Humboldt County: 6.6 miles north of Ettersburg on road to Honeydew. Comment
  UCD17623  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 041 Humboldt California. Humboldt County: west boundary of Whittenmore State Park on road from Garberville (Redhill) to Briceland. 15.25 miles east of Ettersburg via Briceland. Comment
  UCD17817  Rubus ursinus H. Olmo 8-10 May 1962 62 40 Humboldt California. Humboldt County: 1.4 miles east of Dinsmore. Comment
Read comments
Jul 3 2014
  CAS-BOT-BC363202  Rudbeckia occidentalis Carl B. Wolf 1937-8-13 9250 Humboldt North Coast Range, 11 mi. E. of Hoopa Valley on new road towards Trinity Summit 1524 Comment
  UC1541400  Rumex acetosella W. K. Parks Apr 1934 5279 Humboldt Spruce Cove Trinidad Comment
  UC672931  Rumex acetosella Joseph P. Tracy 1930-7-17 9028 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC39614  Rumex acetosella Thomas W. Nelson, Jane P. Nelson 1976-6-15 2718 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  UC146143  Rumex crispus Joseph P. Tracy 1908-6 2806 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UCD101126  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC249658  Rumex maritimus Joseph P. Tracy 1921-8-7 5867 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  UC672923  Rumex maritimus Joseph P. Tracy 1940-10-5 16741 Humboldt Mouth of Little River 6 Comment
  JEPS39867  Rumex obtusifolius Milo S. Baker 1923-8-4 181 Humboldt s of Stone Lagoon Comment
  CAS-BOT-BC434097  Rumex transitorius Carl B. Wolf 1927-8-28 1182 Humboldt Salt Marsh, Eureka Bay, on the road to Arcata Comment
  UC169305  Rupertia physodes Joseph P. Tracy 1912-7-31 3949 Humboldt open woods near summit of Buck Mountain; Northern Coast Ranges Comment
  HSC32142  Sagina saginoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5609 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  CAS-BOT-BC129900  Salix bonplandiana Doris K. Kildale 1926-4-1 1700 Humboldt Dobbyn's Creek Comment
  CAS-BOT-BC103816  Salix exigua M. S. Jussel 1931-5-2 s.n. Humboldt Eureka Comment
  UC481299  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 968 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  CAS-BOT-BC107738  Salix hookeriana Joseph P. Tracy 1925-4-5 6952 Humboldt Near Loren Frost place on Kneeland Road - Kneeland Prairie 609 Comment
  CAS-BOT-BC107744  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1221 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  CAS-BOT-BC107747  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1226 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  CHSC9556  Salix hookeriana E. L. Smith 1971-4-6 926 Humboldt Manila, 4 mi sw of Arcata, on w side of Humboldt Bay opposite Eureka. Comment
  HSC19963  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-15 1103 Humboldt Near mouth of the Little River Comment
  HSC96611  Salix hookeriana Gordon Leppig 2005-4-8 2209 Humboldt N spit, 200 m N of Samoa Bridge 4 Comment
  JEPS12915  Salix hookeriana Joseph P. Tracy 1927-5-1 7953 Humboldt sandunes near Samoa; Northern Coast Region, on Humboldt Bay 6 Comment
  LA208762  Salix hookeriana Harold E.; Susan T. 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM106778  Salix hookeriana Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  SBBG59111  Salix hookeriana H. E. Parks 1931-3-24 914 Humboldt Eel River, Fortuna 10 Comment
  UC1196631  Salix hookeriana J. P. Tracy 1904-4-3 2010 Humboldt Immediate vicinity of Eureka 0 Comment
  UC470433  Salix hookeriana Joseph P. Tracy 1927-9-25 8383 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  UC481350  Salix hookeriana Harold E. Parks 1931-5-12 954 Humboldt Samoa Humboldt Bay Comment
  UC492329  Salix hookeriana Harold E. and Susan T. Parks 1932-4-3 1100 Humboldt Little R. Lagoon Trinidad; , Little River Lagoon Comment
  UC512081  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1224 Humboldt 1 mi n Samoa (pine barrens near the coast) Comment
  UC512099  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1210 b Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UCD111036  Salix hookeriana Linda M. Barker 1976-4-13 1382 Humboldt 3 miles west of Arcata. Comment
  UCD111042  Salix hookeriana Linda M. Barker 1976-6-14 1599 Humboldt 3 miles west of Arcata. Comment
  CDA39526  Salix hookeriana Gordon Leppig 2005-4-8 2203 Humboldt Humboldt Bay Dunes and Wetlands; North Spit, south end of Peninsula Drive. Comment
  RSA0034647  Salix hookeriana Harold E. Parks, Susan T. Parks 1932-4-7 01103 Humboldt Little River Lagoon, Trinidad. Comment
  JEPS12977  Salix laevigata Joseph P. Tracy 1931-10-18 9737 Humboldt on Eel River Camp Grant; Northern Coast Ranges 60 Comment
  UC519390  Salix laevigata Joseph P. Tracy 1933-10-15 13095 Humboldt near Miranda (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  LA208818  Salix lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 966 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  UC1196579  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1939-5-6 16280 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity R. Valley 152 Comment
  UC1196584  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1939-8-5 16394 Humboldt along Van Duzen R. at Dinsmore's; Van Duzen R. 737 Comment
  CAS-BOT-BC128193  Salix lasiandra var. lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  SJSU164  Salix lasiandra var. lasiandra H. E. Parks 1931-5-14 959 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  CAS-BOT-BC107583  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-13 1254 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107596  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11006 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-BC107617  Salix lasiolepis Harold E. Parks 1931-9-26 9696 Humboldt Redwood Creek, at Berry's 274 Comment
  HSC20011  Salix lasiolepis J. P. Tracy 1933-5-14 12184 Humboldt Berry's Mt. on Trinity Hwy. 762 Comment
  JEPS14779  Salix lasiolepis Joseph P. Tracy 1933-4-2 10959 Humboldt on Trinity Hwy. Berry's Mt. (e of Redwood Creek); Northern Coast Ranges 762 Comment
  JEPS14784  Salix lasiolepis Joseph P. Tracy 1933-3-14 12184 Humboldt on Trinity Hwy. Berry's Mt.; North Coast Ranges, Berry's Mt. 762 Comment
  POM219249  Salix lasiolepis H. E. Parks, Susan T. Parks 1931-8-15 1079 Humboldt Blue Slide. Van Duzen River. 100 Comment
  UC1196619  Salix lasiolepis Joseph P. Tracy 1933-7-20 12807 Humboldt Mad River, near Blue Lake 15 Comment
  UC469415  Salix lasiolepis Joseph P. Tracy 1927-5-13 7996 Humboldt Redwood Creek, at Berry's 274 Comment
  UC470409  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC490467  Salix lasiolepis Joseph P. Tracy 1932-9-5 10768 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC490470  Salix lasiolepis Joseph P. Tracy 1932-9-5 10770 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490552  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC506343  Salix lasiolepis Joseph P. Tracy 1933-5-11 10932 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC506392  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC506398  Salix lasiolepis Joseph P. Tracy 1933-4-9 10968 Humboldt Bridgeville Northern Coast Ranges, Van Duzen River (along river) 228 Comment
  UC511980  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC512008  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1233 Humboldt 1 1/2 mi E of Alton ( Van Duzen River) 30 Comment
  HSC20004  Salix lasiolepis J. P. Tracy 1932-6-19 10243 Humboldt North Coast Ranges; Buck Mountain, lower foothills of its northwest slope 762 Comment
  CAS-BOT-BC107414  Salix lasiolepis var. lasiolepis Henry M. Pollard 1945-9-4 s.n. Humboldt near Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC107417  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-7-27 2220 Humboldt Laribee Valley 701 Comment
  RSA171960  Salix lucida subsp. lasiandra Robert F. Thorne 1957-9-2 18988 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  RSA5690  Salix lucida subsp. lasiandra H. E. Parks 1931-5-14 959 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC125607  Salix melanopsis Harold E. Parks 1931-10-15 01077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  HSC20037  Salix melanopsis J. P. Tracy, H. E. Parks 1931-3-26 909 Humboldt Van Duzen River Comment
  UC1196566  Salix melanopsis Joseph P. Tracy 1932-5-1 9846 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC490558  Salix melanopsis Joseph P. Tracy 1932-5-10 9960 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC511972  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1252 Humboldt Mad River at Engelhart gravel pit (2 mi. e. of Redwood Hwy. and above Blue Lake Rd.) Comment
  CAS-BOT-BC129204  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 1251 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC129207  Salix piperi Doris K. Kildale 1927-5-15 3291 Humboldt Mattole River Valley Comment
  CAS-BOT-BC129154  Salix scouleriana Doris K. Kildale 1926-9-9 2687 Humboldt Black Oaks, near Low Gap of Mad River Comment
  CAS-BOT-BC129157  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  JEPS38418  Salix scouleriana W. L. Jepson 1932-7-27 16426 Humboldt Bull Creek 106 Comment
  LA208911  Salix scouleriana Harold E. Parks; 1931-5-14 957 Humboldt Little Larabee Bridge; Van Duzen River 450.0 Comment
  POM209564  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Grove (Parks Ranch). Trinidad. Comment
  UC1173625  Salix scouleriana Joseph P. Tracy 1937-3-21 15238 Humboldt near Grizzly Creek Van Duzen R. 91 Comment
  UC275521  Salix scouleriana Joseph P. Tracy 1924-7-4 6716 Humboldt at Hungry Hollow Bald Mt.; Northern Coast Ranges 762 Comment
  UC490527  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt head of Devil's Hole; Klamath Mts., Trinity Summit 1828 Comment
  RSA5688  Salix sessilifolia H. E. Parks 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC128993  Salix sitchensis Doris K. Kildale 1929-2-28 6948 Humboldt Arcata - hills back of State Teachers College Comment
  HSC79545  Salix sitchensis Kenneth Clark 1980-3-24 546 Humboldt Alluvial terrace of Dead Man's Gulch 15 Comment
  HSC90747  Salix sitchensis Jean Hanson 1980-3-8 24 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC173584  Salix sitchensis Joseph P. Tracy 1935-7-24 14187 Humboldt Trinity Summit near Ranger Station; Trinity Summit 1828 Comment
  UC1173598  Salix tracyi Joseph P. Tracy 1936-3-29 14785 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  RSA132831  Sambucus caerulea P. H. Raven, R. Snow 1958-7-20 s.n. Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  JEPS12741  Sambucus mexicana Lincoln Constance 1934-6-6 829 Humboldt fire trail <from> Dyerville to Horse Prairie (and return); South Fork Eel River, Bull Creek Region Comment
  HSC58141  Sambucus nigra subsp. caerulea Gilbert Muth 1979-8-1 12164 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 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
  UC154205  Sanguisorba annua Joseph P. Tracy 1908-6 2816 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC21328  Sanicula arctopoides Harley P. Chandler May, 1901 1134 Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  UC1197110  Sanicula bipinnatifida Joseph P. Tracy 1928-6-24 8461 Humboldt Valley of South Yager Creek 762 Comment
  JEPS284  Sanicula crassicaulis Lincoln Constance 1934-5-24 642 Humboldt Bull Creek Region, South Fork Eel River South Fork Eel River; Bull Creek Region, South Fork Eel River 121 Comment
  UC1022528  Sanicula crassicaulis C. Ritchie Bell 1952-5-14 3 X456 Humboldt Patrick Point State Park Comment
  UC642248  Sanicula crassicaulis Joseph P. Tracy 1937-5-8 7967 Humboldt Phillipsville, South Fork Eel River South Fork Eel River; Phillipsville, South Fork Eel River 121 Comment
  JEPS1002  Sanicula graveolens Joseph P. Tracy 1926-5-30 7520 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UCD128032  Sanicula laciniata R. N. Raynor 1935-3-2 s.n. Humboldt Fort Seward. Comment
  CHSC60487  Sanicula tracyi Lisa D. Hoover 1992-6-16 Humboldt Six Rivers National Forest. East side of Whiting Ridge off Route 1 before 'Last Chance Ridge' approximately 27 miles off Hwy 299. 1267 Comment
  HSC99063  Sanicula tuberosa C. Witte 2007-5-8 2 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  UC1198890  Saxifraga integrifolia Joseph P. Tracy 1922-4-30 6000 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC74483  Saxifragopsis fragarioides Gail Newton 1980-7-24 1773 Humboldt Near Somes Mtn. 1615 Comment
  UCD126460  Schedonorus arundinaceus A. H. Murphy 1947-5-15 s.n. Humboldt Sherman Flat, ca. 3.5 miles north of Blocksburg. Comment
  HSC44826  Schoenoplectus subterminalis Bruce G. Marcot 1978-7-3 Humboldt Red Mtn. Lake, submerged Comment
  UC6688014  Scirpus cernuus Joseph P. Tracy 1927-9-4 8363 Humboldt near Samoa (on Humboldt Bay); , near Samoa 6 Comment
  HSC59434  Scirpus microcarpus Kenneth Clark 1979-4-21 141 Humboldt Clam Beach, 3.5 mi. N of McKinleyville on Hwy. 101 Comment
  SEINET4170940  Scirpus microcarpus Unknown 1914-9-13 4628 Humboldt At Eureka, Northern Coast Region 61 Comment
  RSA18606  Scirpus microcarpus Carl B. Wolf 1937-9-11 9324 Humboldt Redwood Highway, 3 miles N of Orick at Davison s Ranch on Prairie Creek. 61 Comment
  SEINET4178878 Image available Scirpus pungens R. U. Hart 1946-6-7 Humboldt Pond W. of Centerville, 4 mi. W. of Ferndale on the S. side of the mouth of the Eel River Valley Comment
  UC1103491  Scoliopus bigelovii Joseph P. Tracy 1933-3-26 10941 Humboldt Big Lagoon 91 Comment
  CAS-BOT-BC517416  Scoliopus bigelovii Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC15631  Scoliopus bigelovii R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1361 Humboldt 3 mi. E of Redwood Creek on old Hwy. 299 Comment
  UC1011940  Scrophularia californica F. W. Pennell and J. P. Tracy 1940-7-6 26081 b Humboldt w Lolita (Table Bluff) 1 Comment
  SEINET5223991  Scrophularia californica Unknown 2002-8-22 88 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  UC1409052  Scrophularia californica subsp. californica Robert F. Thorne and P. Everett 1965-8-9 35314 Humboldt Clam Beach County Park 3 Comment
  UC1239708  Scutellaria antirrhinoides Joseph P. Tracy 1935-6-23 13966 Humboldt French Camp Ridge 1066 Comment
  UC175792  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-21 3760 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC175798  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-26 3842 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC416677  Scutellaria antirrhinoides M. H. Manning 1901-5-26 93 Humboldt near Hupa Comment
  RSA183621  Scutellaria tuberosa D. E. Anderson 1965-5-8 3644 Humboldt About 2 miles north of Willow Creek on road running along east side of Trinity River. Comment
  HSC79343  Sedum laxum subsp. heckneri D. K. Imper 1983-7-28 Humboldt Six Rivers National Forest, Orleans, off FS 12N20 near Bald Mtn. Comment
  HSC58040  Sedum obtusatum subsp. retusum Gilbert Muth 1979-8-1 11883 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC1198842  Sedum radiatum Joseph P. Tracy 1912-7-31 3914 Humboldt Buck Mountain Northern Coast Ranges, Buck Mountain near the summit (near the summit) 1219 Comment
  CAS-BOT-BC59121  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Trinidad Comment
  CHSC79631  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata, behind Humboldt State University, at base of stump near Fern Lake spillway. UTM zone 10, 4526N, 409E. 48 Comment
  HSC98904  Selaginella wallacei Cara Witte 2008-6-7 686 Humboldt Horse Mountain Botanical Area. 1/4 mile west of intersection between National Forest 1 and Forest Service Roads 6N36, 6N38. 1426 Comment
  UC1284956  Senecio blochmaniae R. F. Hoover 1946-10-29 6526 Humboldt near Callender railroad siding Comment
Read comments
Mar 19 2007
  HSC48773  Senecio elegans Brad Klipfel 1975-5-22 621 Humboldt Near the city of Eureka airport S of Samoa Comment
  HSC49795  Senecio elegans R. York 1979-5-18 300 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  CAS-BOT-BC363808  Senecio integerrimus var. exaltatus Doris K. Kildale 1926-4-11 1763 Humboldt McLellan Mountain 822 Comment
  CAS-BOT-BC364019  Senecio integerrimus var. major Doris Kildale 1931-5-10 10583 Humboldt Snow Camp Comment
  UC128622  Senecio integerrimus var. major Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5368 Humboldt near Harris Comment
  UC581705  Senecio integerrimus var. major Joseph P. Tracy 1930-7-18 9064 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1223047  Senecio jacobaea Joseph P. Tracy 1946-8-18 17626 Humboldt e side along highway Big Lagoon Comment
  RSA167390  Senecio sylvaticus Joseph P. Tracy 1949-8-11 18467 Humboldt East of headwaters of Redwood Creek, electric power-line southward. Kinsey Ridge south from Grouse Mt., 2 to 6 miles. 1280 Comment
  HSC34282  Senecio triangularis K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  HSC57636  Senecio triangularis G. L. Clifton, Griswold 10794 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1814 Comment
  UC180178  Senecio triangularis Joseph P. Tracy 1914-7-4 4539 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  SDSU2036  Sequoia sempervirens Wayne A. Bemis 1963-11-29 245 Humboldt 1289 D St. Acarta. 55 Comment
  UC1196919  Sequoia sempervirens Joseph P. Tracy 1920-5-18 5319 Humboldt Bull Creek Flat Northern Coast Ranges, Eel River (along Eel River from North Fork to Scotia) 60 Comment
  SEINET5716899 Image available Sequoia sempervirens Ronald J. Mastrogiuseppe 1965-1 s.n. Humboldt Humboldt Redwoods State Park; near the Founders Tree.; Humboldt Redwoods State Park Comment
  UC602551  Sherardia arvensis Joseph P. Tracy 1935-5-25 13883 Humboldt Dobbyn Creek 152 Comment
  RSA46493  Sherardia arvensis Doris K. Kildale 1925-6-27 759 Humboldt Mouth of Yager. Comment
  HSC102917  Sidalcea M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1094 Humboldt Patterson Meadows 1555 Comment
  JEPS50089  Sidalcea diploscypha Lincoln Constance 1934-5-23 613 Humboldt sw slope Upper end Look Prairie Bull Creek Region, South Fork Eel River, Look Prairie (South Fork Eel River, Bull Creek Region) 365 Comment
  CAS-BOT-BC205567  Sidalcea malachroides Doris K. Kildale 1926-5-16 1837 Humboldt Horse Mountain cut-off 792 Comment
  HSC16012  Sidalcea malachroides J. P. Tracy 1936-5-17 14812 Humboldt Fickle Hill, 6 mi. SE of Arcata. 610 Comment
  UC668140  Sidalcea malachroides Joseph P. Tracy 1936-5-17 14812 Humboldt 6 mi se Arcata (Fickle Hill); se of Arcata, Fickle Hill 609 Comment
  UC906705  Sidalcea malviflora subsp. asprella Harold E. Parks and Joseph P. Tracy 1942-7-1 11577 Humboldt Dinmore's 762 Comment
  HSC48418  Sidalcea malviflora subsp. nana J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9924 Humboldt Hwy. 36 at Camp Creek Rd. 76 Comment
  HSC56434  Sidalcea malviflora subsp. patula Griswold, Butler 1979-7-12 7148 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC146187  Sidalcea malviflora subsp. patula J. P. Tracy 1905-6-11 2193 Humboldt immediate vicinity Eureka (at Buckport); immediate vicinity of Eureka, at Buckport 0 Comment
  POM209753  Sidalcea oregana subsp. spicata Joseph P. Tracy 1932-7-10 10382 Humboldt Trinity Summit Corral Prairie, in wet meadow Comment
  HSC41202  Silene bernardina Thomas W. Nelson, Jane P. Nelson 1977-7-4 3602 Humboldt Along old trail above Alder Springs 1555 Comment
  HSC103134  Silene bolanderi M. Mesler 2010-5-30 818 Humboldt Rd from Hwy 3 to Wildwood, near Gemmill Gulch 1003 Comment
  POM286444  Silene californica Lyman Benson 1929-7-19 1659 Humboldt Mouth of Matole River. Comment
  JEPS50973  Silene californica Lincoln Constance 1934-6-1 770 Humboldt Bull Cr Road between Dyerville Bridge and Bull Creek (flat grove (mouth of Bull Cr)); Bull Creek Region, South Fork Eel River 45 Comment
  UC1537312  Silene californica Gordon H. True Jr. 1936-5-11 454 Humboldt 10 mi w Miranda (Elk Ridge); , w of Miranda 457 Comment
  HSC74456  Silene campanulata Gail Newton 1980-8-10 2011 Humboldt Near Blake Mtn. 1798 Comment
  UC668094  Silene campanulata Joseph P. Tracy 1930-7-18 9032 Humboldt near McKay Camp (South Fork Mountain); , near McKay Camp 1676 Comment
  JEPS23252  Silene campanulata subsp. campanulata Joseph P. Tracy 1937-7-29 15590 Humboldt w slope near top at Hyampom Trail , Hyampom Trail (South Fork Mountain) 1676 Comment
  CAS-BOT-BC387077  Silene gallica Doris K. Kildale 1928-5-30 6037 Humboldt mouth of Lindsey Creek Comment
  UC1115828  Silene hookeri Joseph P. Tracy 1939-5-14 16283 Humboldt lower foothills of nw slope Buck Mountain 914 Comment
  UCR40032  Silene hookeri subsp. bolanderi T. Jimerson 1983-5-26 s.n. Humboldt Six Rivers National Forest, Lower Trinitty Road; roadside bank on the road to Brush Mountain Lookout off Friday Ridge Road. (6N08) 1088 Comment
  HSC4171  Silene laciniata subsp. californica D. E. Anderson 1961-9-2 1768 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC43853  Silene laciniata subsp. californica Maralyn O'Meara 1974-7-17 551 Humboldt Kneeland Comment
  CAS-BOT-BC389053  Silene laciniata subsp. californica Doris K. Kildale 1926-3-22 1686 Humboldt Fleener Creek Comment
  CAS-BOT-BC389062  Silene laciniata subsp. californica A. M. Vollmer; L. Beane 1951-6-6 126 Humboldt On road between Orick and Weitchpec Comment
  HSC4166  Silene laciniata subsp. californica J. Wendell Howe 1933-6-12 1208 Humboldt Near Willow Creek Comment
  UC161208  Silene menziesii Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pom Comment
  SEINET6744566 Image available Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge, Humboldt County, California. Alt. Ca. 33 m. Comment
  JEPS62118  Smilacina racemosa W. L. Jepson 1902-6-29 1950 Humboldt Hupa Rd. Berry's Ranch, Redwood Creek Comment
  JEPS62151  Smilacina stellata Lincoln Constance 1934-6-2 783 Humboldt Bull Cr. road to mouth of Bull Cr. (and up creek); South Fork Eel River, Bull Creek Region 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
  HSC91943  Solanum americanum E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  UCD126814  Solanum americanum Robert F. Thorne; P. Everett 1965-8-5 35147 Humboldt Samoa Dunes. 3 Comment
  HSC21309  Solanum americanum D. E. Anderson 1961-9-13 1824 Humboldt Comment
  UCD126873  Solanum aviculare Robert F. Thorne; P. Everett 1965-8-5 35160 Humboldt Samoa Dunes, at edge of Humboldt Bay. 3 Comment
  CAS-BOT-BC83504  Solanum lycopersicum Henry M. Pollard 1948-7-21 s.n. Humboldt Orleans Comment
  UC154016  Solanum physalifolium var. nitidibaccatum J. P. Tracy 1909-8-10 3074 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS12167  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  SEINET10872207  Solidago Mary Susan Taylor 1990-8-22 Taylor 6079 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  CAS-BOT-BC365442  Solidago elongata Ira L. Wiggins 1932-7-25 5895 Humboldt Roadsides near McKinleyville Comment
  HSC102577  Solidago elongata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1564 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  SEINET6417801 Image available Solidago occidentalis S. K. Harris, C. Wilder 1938-9-7 879 Humboldt Van Dusen River, above Blue Slide Comment
  RSA167399  Solidago spathulata Joseph P. Tracy 1948-9-26 18226 Humboldt Fickle Hill, six miles southeast of Arcata. 610 Comment
  RSA254746  Solidago spathulata Thomas W. Nelson 1971-11-11 598 Humboldt At the foot of Murray Road, McKinleyville. Comment
  SEINET3896347  Solidago spathulata Thomas Nelson 1971-11-11 598 Humboldt At the foot of Murray Rd. McKinleyville.; 0 Comment
  UC129319  Solidago spathulata Harley P. Chandler May 1901 1158 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  UCSC000787  Solidago spathulata H. L. Person 1932-7-20 s.n. Humboldt Eureka, Field Brook, Tinriesia Forest Comment
  RSA474068  Soliva sessilis J. P. Smith 1977-4-23 9019 Humboldt 2.5 miles S of Shelter Cove Road. S Fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC35009  Soliva sessilis J. O. Sawyer 1975-5-20 2695 Humboldt 1445 Chester Ave., Sunnybrae Comment
  CAS-BOT-BC374426  Sonchus asper Joseph P. Tracy 1936-8-24 15177 Humboldt Fickle Hill, 6 miles Southeast of Arcata 609 Comment
  HSC6218  Sonchus asper S. R. Johnson 1965-3-15 11 Humboldt 1 mi. N of Luffenholtz Beach Comment
  BLMAR314  Sparganium emersum Jennifer Anthony-Wheeler 2002-8-9 314 Humboldt Lost Coast Headland, growing along edge of middle pond 121 Comment
  UC1103519  Sparganium emersum var. emersum Joseph P. Tracy 1934-10-21 13692 Humboldt in front of s end Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  CAS-BOT-BC235368  Spartina densiflora Malcom A. Nobs; S. Galen Smith 1949-8-3 1180 Humboldt Near mouth of the Elk River, ca. 4 miles south of Eureka on Highway 101 Comment
  CAS-BOT-BC235372  Spartina densiflora Malcom A. Nobs; S. Galen Smith 1949-8-3 1180 Humboldt Near mouth of the Elk River, ca. 4 miles south of Eureka on Highway 101 Comment
  CDA3451  Spergula arvensis T. C. Fuller 1961-9-28 7061 Humboldt 1.5 miles south of Samoa. 0 Comment
  CHSC33022  Spergula arvensis subsp. arvensis James Payne Smith Jr. 1970-6-7 3805 Humboldt 0.6 miles north of Luffenholtz Beach along Calif. 1 near Trinidad. Comment
  UC162714  Spergula arvensis subsp. arvensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5485 Humboldt near Camp Grant Comment
  RSA0097079  Spergularia Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  HSC37315  Spergularia rubra J. P. Smith 1976-5-27 8814 Humboldt Corner of 14th and G St. Arcata Comment
  CAS-BOT-BC149620  Spiraea douglasii Harley P. Chandler 1901-5-1 1197 Humboldt Humboldt Bay 30 Comment
  HSC19751  Spiraea douglasii Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  SBBG3128  Spiraea douglasii M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  HSC98653  Spiranthes romanzoffiana Cara Witte 2007-7-26 594 Humboldt Board Camp Mountain. Intersection of Forest Service Road 4N38 and National Forest 1. 1395 Comment
  UC1222863  Stachys ajugoides var. ajugoides Joseph P. Tracy 1951-6-21 19526 Humboldt back of Everett Beck's Ranch house (bed of former Goose Lake); Goose Lake, Hydesville Comment
  UC416584  Stachys ajugoides var. rigida Harley P. Chandler June 1901 1465 Humboldt Klamath River North Coast Ranges 304 Comment
  UC725501  Stachys chamissonis A. A. Heller 1923-7-9 13786 Humboldt between Eureka and Fortuna Comment
  HSC59665  Stachys chamissonis George Kirn 1977-9-10 Humboldt Eureka, Cooper Gulch S of 14th St. 20 Comment
  POM92413  Stachys emersonii L. R. Abrams 1922-6-25 s.n. Humboldt 2 miles south of Fortuna Comment
  HSC14418  Stachys rigida P. Markle 1962-5-19 47 Humboldt Beginning of trail in woods near HSC campus near reservoir 30 Comment
  RSA20856  Stachys rigida subsp. quercetorum Carl B. Wolf 1937-6-18 8896 Humboldt 1/2 mile S of Fortuna. 15 Comment
  SD93012  Stachys rigida var. quercetorum W. Bertsch 1953-7-30 233 Humboldt Highway 101, 5 miles north of Arcata. Comment
  HSC96278  Stachys rigida var. rigida J. Breton, A. Livingston 2005-6-8 4 Humboldt 1.4 mi. S of Hwy. 299 on Titlow Hill Rd. 914 Comment
  HSC95683  Stellaria media Kevin Thomas 2004-3-18 6 Humboldt Near Clam Beach exit of Hwy. 101 N, along old Hwy. 101, at end of Little River Rd. Comment
  UC1198340  Stellaria nitens Joseph P. Tracy 1933-6-13 12563 Humboldt near Hoopa Mountain summit (on road w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC1199363  Stephanomeria elata Joseph P. Tracy 1930-7-25 8880 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC58409  Stipa lemmonii Terry Griswold, Marvin Butler 1979-7-10 7124 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC76545  Stipa lemmonii Denis Kearns 1981-7-22 316 Humboldt Near Whiteys Peak. 1487 Comment
  HSC96939  Stipa lemmonii Ryoko Ito, Shauna McDonald 2007-6-11 4 Humboldt 14.1 mi. above Hwy. 299 1372 Comment
  HSC39717  Stipa miliacea D. E. Anderson, J. P. Smith 1971-6-28 - 1261 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  CHSC111333  Stipa miliacea var. miliacea Barbara L. Wilson; Nick Otting 2012-7-3 17135 Humboldt Dean Creek Resort between the Eel River and the Old Redwood Highway, west of Highway 101; UTM zone 10T, 430910 east, 443867 north. 76 Comment
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Nov 6 2015
  SEINET5585763  Stipa occidentalis Percy Train 1937-1 515 Humboldt Canyon Creek summit, east slope Santa Rosa Range 2195 Comment
  HSC70349  Streptanthus tortuosus M. A. Baker 1980-6-7 1812 Humboldt Near Brush Mtn. 1128 Comment
  HSC74305  Streptanthus tortuosus M. A. Baker 1980-7-24 3205 Humboldt Near Orleans Mtn. 1625 Comment
  HSC57689  Streptopus amplexifolius G. L. Clifton, Griswold 1979-7-25 10908 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC175818  Streptopus amplexifolius var. americanus Joseph P. Tracy 1912-8-1 3956 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC74293  Swertia radiata M. A. Baker 1980-7-22 3084 Humboldt Near Salmon Mtn. 1820 Comment
  UC198632  Swertia radiata Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  UCR198251  Symphoricarpos albus Dean Kelch 2007-7-25 07- 506 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  HSC73239  Symphoricarpos albus var. laevigatus M. A. Baker 1980-5-18 1320 Humboldt Near Black Mountain. 360 Comment
  UC602516  Symphoricarpos mollis Joseph P. Tracy 1930-7-16 8956 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  RSA417726  Symphyotrichum foliaceum var. foliaceum E. S. Spalding 1924-7-11 s.n. Humboldt Between Trinidad and Arcata Comment
  CAS-BOT-BC98973  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1215 Humboldt Trinity Summit near Ranger Station 1828 Comment
  HSC102209  Symphyotrichum hendersonii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1124 Humboldt Andy's Camp 1564 Comment
  HSC75277  Symphyotrichum hendersonii J. O. Sawyer, D. A. Thornburgh 1980-9-9 4078 Humboldt Mill Creek Lake and surrounding meadows Comment
  UC1222982  Symphyotrichum hendersonii Joseph P. Tracy 1941-8-24 17040 Humboldt near McKay camp; South Fork Mountain 1676 Comment
  JEPS32727  Symphytum asperum Kate Jared Stirring 1923-6-5 Humboldt Arcata Comment
  UCD124638  Synthyris reniformis K. Esau 1934-4-1 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC49169  Synthyris reniformis J. O. Sawyer 1977-4-23 2836 Humboldt Along Big Hill Rd., E of Hoopa Comment
  CAS-BOT-BC376720  Tanacetum bipinnatum Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  CAS-BOT-BC376731  Tanacetum bipinnatum Peter H. Raven 1962-8-26 18075 Humboldt Dunes just south of Samoa Comment
  UC249808  Tanacetum camphoratum Joseph P. Tracy 1923-6-17 6270 Humboldt Northern Coast Region, on Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  RSA246918  Tanacetum douglasii R. F. Thorne, Percy C. Everett 1965-8-5 35167 Humboldt Samoa Dunes. 3 Comment
  UC1239515  Taraxacum officinale Joseph P. Tracy 1924-5-4 6666 Humboldt Bridgeville Northern Coast Ranges 243 Comment
  UC162623  Tauschia kelloggii Joseph P. Tracy 1911-7-4 3289 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, w side of Trinity River, Willow Creek 182 Comment
  SJSU685  Taxus brevifolia A. W. Jacobs 1941-6-15 Humboldt border of road (Hwy 299) between Blue Lake & Redwood Creek Comment
  HSC55865  Tellima grandiflora G. L. Clifton, Griswold 1979-7-25 10885 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC56142  Tellima grandiflora G. L. Clifton, Griswold 1979-8-1 11969 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  POM117233  Tellima grandiflora Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  RSA120721  Tellima grandiflora S. S. Tillett 1956-7-5 604 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  SEINET12217531  Tellima grandiflora F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -280 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC902019  Thlaspi arvense Joseph P. Tracy 1949-9-29 18582 Humboldt near Freshwater Corners; near Freshwater Corners 30 Comment
  UC183547  Thlaspi californicum Joseph P. Tracy 1913-5-4 4043 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC81312  Thuja plicata Dr. A. Kellogg; W. G. W. Harford 1868-9 933 Humboldt unspecified Comment
  CAS-BOT-BC81316  Thuja plicata Doris K. Kildale 1926-11-13 2850 Humboldt Eureka 21 Comment
  HSC1301  Thuja plicata Allan R. Marshall 1962-5-20 23 Humboldt Blue Lake along Hwy. 299 46 Comment
  HSC95903  Thuja plicata Will Ferrand 2001-6-17 2 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  RSA34287  Thuja plicata C. B. Wolf 1927-8-29 1192 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  SBBG26950  Thuja plicata C. B. Wolf 1930-10-25 1020 Humboldt Blue Lake-Willow Crk Rd (Lord Ellis Rd); 2 mi above Blue Lake 243 Comment
  UC1198814  Thysanocarpus curvipes Joseph P. Tracy 1939-4-29 16242 Humboldt Klamath River at mouth of Slate Creek; Klamath River at mouth of Slate Creek 121 Comment
  HSC63848  Tiarella trifoliata var. unifoliata M. A. Baker 1979-6-29 964 Humboldt Hopkin's Creek. 750 Comment
  UC1198899  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1912-7-23 3796 Humboldt 5 mi above mouth South Fork of Eel River; Northern Coast Ranges, along South Fork of Eel River 91 Comment
  CAS-BOT-BC436913  Tiarella trifoliata var. unifoliata Ira L. Wiggins 1930-7-22 4594 a Humboldt Redwood Creek between Blue Lake and Willow Creek Comment
  UC64644  Tiarella trifoliata var. unifoliata H. M. Hall 1899-9 Humboldt Redwood forests along Eel River; along Eel River Comment
  SEINET3888616  Tofieldia occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt Snow Camp (Mts. E. of Korbel). Near small lake.; 0 1372 Comment
  HSC62637  Tolmiea diplomenziesii R. D. Zortman 1963-5-12 43 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  RSA167305  Tolmiea menziesii Joseph P. Tracy 1950-7-15 19040 Humboldt Mouth of Raccoon Creek, 1 mile northeast of Patterson s Ranch, vicinity of Willow Creek. Comment
  RSA12424  Torreyochloa pallida var. pauciflora C. B. Wolf 1934-7-2 5870 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  HSC62837  Toxicodendron diversilobum M. Dean Griswold 1979-5-29 85 Humboldt In front of Masonic lodge on Bayside Rd. Comment
  JEPS63933  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2003 Humboldt S. Fork Trinity R., Martin's Ranch Comment
  SEINET3071157 Image available Tracyina rostrata J. P. Tracy 1916-6-20 4735 Humboldt Alder Point Comment
  UC1222896  Tracyina rostrata Joseph P. Tracy 1950-6-23 18859 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  CHSC32806  Tragopogon porrifolius Lora L. Anderson 1981-4-26 5 Humboldt Ca. 0.5 mi w of Mad River, 200 yds n of 200/299 separation bridge, 8 mi ne of Arcata. Along roadside. 30 Comment
  HSC70386  Trientalis latifolia M. A. Baker 1980-6-7 1859 Humboldt Near Ammon Creek 732 Comment
  SBBG5617  Trientalis latifolia H. and M. Dearing 1933-5-16 1292 Humboldt Weott Comment
  HSC45615  Trientalis latifolia Diane L. Reed 1978-5-7 49 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  UC1197212  Trifolium albopurpureum var. dichotomum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3613 Humboldt near Hydesdale (and Alton); Northern Coast Ranges Comment
  JEPS65948  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1927-5-14 8007 Humboldt near South Fork; North Coast Ranges, Trinity River Valley 182 Comment
  UC495671  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1927-6-5 8101 Humboldt s Yager Creek (valley); Northern Coast Ranges 762 Comment
  SDSU5270  Trifolium arvense D. F. Howe 1979-6-25 5195 Humboldt #299, one milesouth of Willow Creek. Comment
  HSC49248  Trifolium bifidum R. Sutherland 1978-5-19 4 .19578 Humboldt Mckee Flat 296 Comment
  UC1197183  Trifolium bifidum var. decipiens J. P. Tracy 1913-6-13 4105 Humboldt oppostie Buck Mtn (Dinsmore's Ranch); North Coast Ranges, Van Duzen River Valley 762 Comment
  UC1223501  Trifolium bifidum var. decipiens Joseph P. Tracy 1950-6-8 18744 Humboldt 1 mi e Cape Mendocino (Cape Ridge, roadside near top of ridge) 152 Comment
  HSC100530  Trifolium depauperatum Carl C. Marshall May 1887 436 Humboldt Kneeland Prairie. Comment
  RSA244958  Trifolium fragiferum Thomas W. Nelson 1973-7-24 1099 Humboldt On the flood plain of the Mad River at the north end of the Carson railroad bridge. Comment
  UC1197033  Trifolium fucatum Joseph P. Tracy 1932-5-10 9963 Humboldt near Petrolia (Mattole River); North Coast Ranges 15 Comment
  UC495645  Trifolium gracilentum Joseph P. Tracy 1932-4-24 9810 Humboldt betw Miranda and Redway (South Fork of Eel River); Northern Coast Ranges 91 Comment
  HSC45169  Trifolium hirtum R. Sutherland 1978-5-13 1 .13578 Humboldt 285 Comment
  UC162782  Trifolium hybridum J. P. Tracy 1904-7-3 2108 Humboldt vicinity Eureka 0 Comment
  UCSB30613  Trifolium longipes subsp. elmeri David Edwards 1974-8-1 76 Humboldt collected 2.50 mi SW, along the N-side of a dirt road, 50 ft N of Mad River, at 45 degree bend river, 0.50 mi S of Putter Creek Korbel - Mad River, Putter Creek and Korbel 27 Comment
  HSC99351  Trifolium longipes subsp. hansenii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 197 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  CHSC35554  Trifolium microcephalum James P. Smith 1973-5-26 6870 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC22536  Trifolium microcephalum D. E. Anderson, J. P. Smith 1970-5-10 5057 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  JEPS65953  Trifolium microcephalum W. L. Jepson 1932-7-26 16401 Humboldt Bull Creek Comment
  JEPS65965  Trifolium microcephalum W. L. Jepson 1902-6-20 1898 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC1197540  Trifolium microcephalum Joseph P. Tracy 1911-7-10 3495 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1223351  Trifolium microdon Joseph P. Tracy 1938-6-8 15867 Humboldt near Samoa; Humboldt Bay 6 Comment
  UC16635  Trifolium microdon Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mtn Comment
  UC1197521  Trifolium obtusiflorum Joseph P. Tracy 1911-6-11 3241 Humboldt Trinidad Station Northern Coast Ranges 91 Comment
  HSC45113  Trifolium repens R. Sutherland 1978-5-17 1 .17578 Humboldt 305 Comment
  SEINET12156857  Trifolium variegatum L. K. Henry 1971-1 s.n. Humboldt along Rt 36, 2 mi E of Dinsmor in Six Rivers Nat'l Forest Comment
  JEPS4134  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8573 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
  UC165539  Trifolium willdenovii Harley P. Chandler June 1901 1450 Humboldt Klamath River North Coast Ranges 304 Comment
  HSC45127  Trifolium willdenovii R. Sutherland 1978-5-19 9 .19578 Humboldt 131 Comment
  HSC96949  Trifolium willdenovii Elizabeth Kimbrough, Whitney Meier 2007-6-4 1 Humboldt Cold Springs Camp, 7.4 mi. S of Hwy. 299 off FS Rd. NF1 on FS Rd. 5N27 1390 Comment
  UC1223315  Trifolium willdenovii Joseph P. Tracy 1938-6-8 15866 Humboldt Samoa Sand Dunes Comment
  UC303199  Trifolium willdenovii Joseph P. Tracy 1925-5-17 6967 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD109887  Trifolium willdenovii Tofsrud 1948-1 s.n. Humboldt location unknown. Comment
  HSC103842  Trifolium wormskioldii G. D. Barbe, T. C. Fuller 1974-6-17 1850 Humboldt Crescent City; Pebble Beach Rd., south of Airport and Washington Blvd. Comment
  HSC90807  Triglochin maritima Gail Newton 1982-5-2 2510 Humboldt Elk River Wildlife Area, Eureka Comment
  RSA249527  Triglochin maritima Robert F. Thorne, Percy C. Everett 1965-8-7 35214 Humboldt Samoa Peninsula: near sea level Comment
  UCSB25659  Triglochin maritima Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  HSC14167  Triglochin maritima S. J. Moore 1965-5-8 15 Humboldt Marsh adjacent to Mad River Slough. 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
  HSC15714  Trillium albidum Francis Winter 1960-5-7 Humboldt Hog Ranch Ridge, 8 mi. W of Hoopa Indian Reservation 915 Comment
  UC902042  Trillium angustipetalum Joseph P. Tracy 1949-6-25 18350 Humboldt near Box Camp Trinity Summit 1524 Comment
  CHSC62019  Trillium ovatum J. R. Biddison 1993-4-7 13 Humboldt Phillipsville, Avenue of the Giants, w side of road, 1 mi s of hwy 101 junction. 45 Comment
  HSC37360  Trillium ovatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 490 Humboldt Along Lost Man Creek. 38 Comment
  HSC47579  Trillium ovatum Sheila Logan 1978-4-10 175 Humboldt Redwood Park behind HSU campus Comment
  CAS-BOT-BC133395  Trillium ovatum Doris K. Kildale 1926-3-25 1630 Humboldt Foot of Liscom Hill near Essex 30 Comment
  HSC15701  Trillium ovatum D. M. Thomson 1965-4-26 30 Humboldt Along Gold Bluff Rd. 1.0 mi. S of Prairie Creek State Park Comment
  UC1537232  Trillium ovatum Gordon H. True Jr. 1936-2-26 329 Humboldt on Eel R. near Pepperwood; Eel. R. 91 Comment
  HSC100892  Trillium sessile var. californicum Carl C. Marshall Apr 1886 122 Humboldt Thickets near bay. Comment
  JEPS11786  Triodanis biflora Lincoln Constance 1934-6-4 818 Humboldt Look Prairie Bull Creek Region (and Bull Cr. road to Dyerville, South Fork Eel River); South Fork Eel River, , Look Prairie Comment
  UC1334892  Triphysaria eriantha subsp. eriantha L. D. Thurman 1965-5-2 669 Humboldt along the roadside of U.S. #101 at the Little River turnoff Comment
  CHSC70841  Triphysaria eriantha subsp. rosea Vernon Oswald 1998-4-16 8916 Humboldt Samoa Boat Ramp County Park on the North Spit of Humboldt Bay. Growing along New Navy Base Rd. fronting the park. 6 Comment
  BLMAR604  Triphysaria pusilla Jennifer Wheeler 2011-4-1 604 Humboldt King range, growing on Mattole beach dunes Comment
  HSC23103  Triphysaria pusilla D. E. Anderson 1965-5-6 3609 Humboldt Along Hwy. 299 Comment
  UC27277  Triphysaria pusilla C. E. Spear April, 1898 Humboldt Waddington Comment
  UC179947  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1914-5-14 4472 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  HSC103433  Triphysaria versicolor subsp. versicolor Thomas W. Nelson, Jane Nelson 2005-5-1 9305 Humboldt Eureka; vacant field at Broadway and Koster Streets. Comment
  HSC32371  Triphysaria versicolor subsp. versicolor Linda M. Barker 1974-5-19 197 Humboldt Arcata, Samoa Blvd., 200 yards E of Hwy. Patrol Station, median divider Comment
  CAS-BOT-BC199618  Trisetum canescens Joseph P. Tracy 1901-6-23 1167 Humboldt Immediate vicinity of Eureka 152 Comment
  RSA10082  Trisetum canescens Joseph P. Tracy 1932-7-16 10614 Humboldt Trinity Summit 1524 Comment
  RSA183534  Trisetum canescens H. S. Logsdon 1964-5-10 11 Humboldt 4 miles NE of Orick at Boye's Prairie Comment
  UCD93603  Trisetum canescens P. B. Kennedy 1923-8-3 s.n. Humboldt Bluff Creek to Orrick. Comment
  HSC13424  Trisetum cernuum E. W. Styskel 1964-5-8 84 Humboldt 2 mi. W of Rio Dell off Blue Slide Rd. Comment
  UCD93906  Trisetum cernuum R. Tofsrud 1949-7-1 s.n. Humboldt On road between Scotia and Capetown. Comment
  UCD93911  Trisetum cernuum Joseph P. Tracy 1950-7-2 18962 Humboldt Happy Camp Mountain. In Trinity Summit Range, 6 miles northeast of Hawkins Bar. At Fern Spring. 1280 Comment
  UC1222691  Triteleia hyacinthina Joseph P. Tracy 1950-6-25 18896 Humboldt in meadow near Sproston Place (on the road to the Albee Place, 3 mi s Burr Valley); w side Buck Mountain 1158 Comment
  CAS-BOT-BC526352  Triteleia laxa Joseph P. Tracy 1930-7-6 8841 Humboldt Kneeland Prairie 762 Comment
  RSA183022  Triteleia laxa Lee W. Lenz 1966-5-24 24657 Humboldt W of Berry Summit, US 299. Comment
  SD46480  Triteleia laxa E. K. Balls, L. W. Lenz 1956-6-12 21663 Humboldt On steep, open, grassy slopes withscattered trees, 23 miles southwest of Willow Creek, along U.S. Highway 299 toward Arcata. 640 Comment
  HSC28304  Tsuga heterophylla Gary S. Lester 1973-12-8 61 Humboldt E of HSC Campus Comment
  SD56793  Tsuga heterophylla Darley F. Howe 1963-7-7 Humboldt 5 miles north of Orick on Highway #101 Comment
  SJSU136  Tsuga heterophylla Emily D. Smith 1934-8-23 Humboldt Big Lagoon midway between Trinidad & Orick Comment
  UC1134186  Tsuga heterophylla H. S. Yates 1936-6-18 5738 Humboldt 10 mi s of the Klamath River Orick Quadrangle 60 Comment
  UC162948  Tsuga heterophylla Joseph P. Tracy 1911-6-4 3233 Humboldt along Little River Northern Coast Region, Little River (5 mi from the coast) 121 Comment
  CAS-BOT-BC73931  Turritis glabra Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1371 Comment
  HSC30346  Umbellularia californica Dale R. Gradek 1974-5-28 91 Humboldt 1.0mi E of Hwy. 101 on N Bank Rd. 30 Comment
  HSC46102  Umbellularia californica J. P. Smith, J. O. Sawyer 1975-4-6 8058 Humboldt N of Briceland on rd. to Hwy. 101 Comment
  HSC62939  Umbellularia californica Michael Dalke 1979-4-14 54 Humboldt Richardson Grove State Park, Hwy. 101 152 Comment
  HSC62761  Urtica dioica subsp. gracilis J. M. DiTomaso 1979-4-21 889 Humboldt 50 yds. from Little River, 200 yds. from beach, 11 mi. N of Arcata. Comment
  UC562345  Vaccinium cespitosum Joseph P. Tracy 1935-7-26 14270 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  HSC13157  Vaccinium ovatum Steve Dorei 1970-10-8 7 Humboldt HSU campus, near corner of Union St. and st. leading to gyms Comment
  POM118412  Vaccinium ovatum Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  UC412666  Vaccinium ovatum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC484083  Vaccinium ovatum Carl B. Wolf 1930-10-24 Humboldt 2 mi below mouth of Salmon River; Klamath River 152 Comment
  UC902048  Vaccinium ovatum Joseph P. Tracy 1948-10-24 18257 Humboldt near Fruitland 304 Comment
  UCD118087  Vaccinium ovatum B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  HSC31220  Vaccinium parvifolium D. E. Anderson 1972-6-20 5729 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC74355  Vaccinium parvifolium Gail Newton 1980-6-17 226 Humboldt Near Onion Mtn. 1341 Comment
  UC203879  Vaccinium parvifolium Joseph P. Tracy 1918-4-21 4879 Humboldt Near Newell's old camp, Kneeland Prairie Road, around Humboldt Bay, Northern Coast Region 457 Comment
  CAS-BOT-BC199418  Vaccinium parvifolium H. E. McMinn 1922-6-23 263 Humboldt Near Van Dusen [Duzen] River Comment
  SD257259  Vaccinium parvifolium Jim R. Shevock 1972-3-26 1470 Humboldt Along Highway 299. 366 Comment
  POM59403  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 s.n. Humboldt Scotia bluff, along Eel River from South Fork to Scotia. 61 Comment
  UC1196349  Vancouveria hexandra J. P. Tracy 1901-6-10 1124 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC76048  Vancouveria hexandra D. E. Breedlove 1962-6-8 3068 Humboldt Along U.S. Highway 101, 8 miles north of Orick. 60 Comment
  HSC3388  Vancouveria hexandra M. T. Milligan 1964-5-14 Humboldt 3 mi. N on Essex Ln. Comment
  HSC38742  Vancouveria planipetala J. D. Ackerman 1975-6-18 468 Humboldt Big Hill Rd., 7.9 mi. E of Hoopa and Hwy. 96 Comment
  POM272219  Vancouveria planipetala Lyman Benson 1928-7-8 377 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  UCSB23564  Vancouveria planipetala Keefe, Joseph 1967-7-8 Humboldt Redwood Forest, Avenue of the Giants, 2.4 miles north of Miranda 121 Comment
  CAS-BOT-BC528853  Veratrum californicum Doris K. Kildale 1925-8-16 1179 Humboldt Trinity Summit Elk Horn Prairie, wet meadow 1524 Comment
  UC1198213  Veratrum californicum var. californicum Joseph P. Tracy 1933-7-25 12862 Humboldt in wet meadow Grouse Mountain 1524 Comment
  HSC102165  Veratrum viride M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1075 Humboldt Patterson Meadows 1566 Comment
  CDA30233  Verbena lasiostachys M. K. Beyers, I. Shepardson 2009-9-13 240 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  HSC12549  Verbena menthifolia C. Kline 1970-10-28 47 Humboldt North Bank Rd., 3 mi. W of Blue Lake, Mad River gravel bottoms Comment
  HSC92212  Veronica anagallis-aquatica D. E. Anderson, Thomas W. Nelson 1972-5-9 Humboldt Just W of Weitchpec on the road to Pecwan Comment
  CDA6482  Veronica filiformis E. C. Whitney 1966-2-11 Humboldt 409 11th Street, Eureka. 0 Comment
  HSC21215  Veronica persica J. L. Baker 1965-3-9 1 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  OBI9217  Veronica scutellata Carl B. Wolf 1937-6-18 8895 Humboldt 1/2 mi S of Fortuna 15 Comment
  HSC55299  Veronica serpyllifolia subsp. humifusa Terry Griswold, Marvin Butler 1979-7-10 6379 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA800193  Vicia Robert F. Thorne, Percy C. Everett 1965-8-8 35242 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC99734  Vicia americana Jimerson, J. Pageau 1979-5-24 471 Humboldt Near Orleans 226 Comment
  HSC102551  Vicia americana var. americana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1539 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1197479  Vicia americana var. americana Joseph P. Tracy 1936-3-29 14786 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 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
  HSC69526  Vinca major R. Kalal 1980-6-1 3 Humboldt S side of Essex Pond 15 Comment
  HSC21758  Viola adunca F. B. Plett 1963-3-9 5 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC31450  Viola adunca D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5568 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC97108  Viola adunca Yun Chan, Renee Meyer, Sophary Yun 2007-6-4 1 Humboldt 7.4 mi. S of Hwy. 299 on FS Rd. NF1; Coldspring Camp. 1372 Comment
  UC1762356  Viola adunca Milo S. Baker 1926-4 5432 Humboldt Carlotta Comment
  SEINET11980785  Viola adunca f. adunca Unknown 1936-1 13040 Humboldt Fields Landing Comment
  UC1222521  Viola cuneata Joseph P. Tracy 1950-7-1 18946 Humboldt at summit near Clear Lake; Grouse Mountain 1524 Comment
  HSC21799  Viola glabella D. E. Anderson 1965-5-15 3688 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC48412  Viola glabella Brad Klipfel 1973-6-10 84 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC164832  Viola glabella Joseph P. Tracy 1910-4-17 3118 Humboldt near forks of Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay 0 Comment
  UC668250  Viola glabella Joseph P. Tracy 1933-7-16 12775 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UCD164670  Viola glabella R. John Little; C. Little 1991-5-27 6484 Humboldt Kneeland Road ca. 3 mi E of Kneeland. (Exact location unknown. Coordinates estimated by label maker). 701 Comment
  HSC62757  Viola glabella J. M. DiTomaso 1979-4-21 902 Humboldt Trail from Parking Lot Elks Head at College Cove, Trinidad Comment
  UC1761598  Viola glabella W. K. Parks Jul 1933 6238 Humboldt South Fork Mt. Comment
  UC1762506  Viola glabella Milo S. Baker 1947-8-10 11900 Humboldt near end of forest road from Hoopa 1371 Comment
  RSA12564  Viola macloskeyi Carl B. Wolf 1934-7-2 5875 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  CHSC24744  Viola ocellata G. Strang 1976-4-10 6 Humboldt Ca. 1.5 mi e of Bridgeville on the ne facing bank. 1280 Comment
  HSC21824  Viola ocellata Jack Rockwell 1962-5-12 70 Humboldt N of Bridgeville in hillside canyon 213 Comment
  SEINET197041 Image available Viola sempervirens H. E. Parks, S. T. Parks 24268 Humboldt Spruce Cove , Trinidad 60 Comment
  UC1762495  Viola sheltonii Milo S. Baker 1946-6-14 11491 Humboldt South Fork Mtn. 1524 Comment
  JEPS40248  Vitis californica W. L. Jepson 1936-8-11 17870 Humboldt Philipsville South Fork Eel River Comment
  CAS-BOT-BC198763  Vulpia bromoides Doris K. Kildale 1926-5-2 1857 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  UC1145192  Vulpia microstachys var. pauciflora Joseph P. Tracy 1942-6-23 17224 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC9941  Vulpia myuros D. E. Anderson 1965-9-5 4088 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  CAS-BOT-BC184731  Vulpia myuros subsp. megalura Joseph P. Tracy 1933-6-13 12598 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  HSC6316  Wyethia angustifolia Frances Oldridge 1945-1 Humboldt Arcata Comment
  RSA787174  Wyethia angustifolia C. B. Wolf 1927-8-29 1200 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  UC582646  Wyethia angustifolia Joseph P. Tracy 1935-6-23 13988 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC326980  Wyethia longicaulis Doris K. Kildale 1926-6-9 2148 Humboldt Horse Mountain 1219 Comment
  HSC76215  Wyethia longicaulis Overton, Butler 1979-7-24 9727 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC98358  Xerophyllum tenax T. Jimerson, J. Pageau 1979-6-12 525 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  HSC12355  Zeltnera muehlenbergii Steve Dorei 1970-10-31 130 Humboldt Scotia Bluff area Comment
  HSC22492  Zeltnera muehlenbergii S. V. Thompson 1967-7-24 26 Humboldt N of Arcata, edge of Redwood Forest Comment
  HSC39225  Zigadenus micranthus D. E. Anderson, J. P. Smith 1971-7-6 1288 Humboldt Horse Mtn. Comment
  HSC40300  Zigadenus micranthus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2901 Humboldt Along ridge N of Bear Creek 1463 Comment
  CAS-BOT-BC534318  Zigadenus venenosus var. venenosus Carl B. Wolf 1937-6-14 8817 Humboldt North Coast Range, Kneeland Prairie 822 Comment



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