Search Results — 2000 specimen records retrieved (1346 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC502913  Abies concolor Joseph P. Tracy 1927-6-12 8144 Humboldt Horse Mountain 1524 Comment
  CAS-BOT-BC78058  Abies grandis Doris K. Kildale 1926-11-27 2841 Humboldt Alton Hill gulch between Alton + Rohnerville 152 Comment
  SDSU1549  Abies grandis W. A. Bemis 1964-4-11 254 Humboldt Mad River, HWY 299. 76 Comment
  HSC73071  Abies procera M. A. Baker 1980-7-22 3063 Humboldt Near Salmon Mtn. 1820 Comment
  HSC26920  Abronia latifolia Brad Klipfel 1973-7-30 217 Humboldt Near Samoa Comment
  HSC41125  Abronia latifolia Thomas W. Nelson, Jane Nelson, James Nelson 1976-9-26 3266 Humboldt Along beach S of Fern Canyon. Comment
  UC55499  Abronia latifolia J. P. Tracy 1901-8-7 1271 Humboldt Sand Hills of Ocean Beach Samoa, Opp Eureka Comment
  CAS-BOT-BC383849  Abronia latifolia Doris K. Kildale 1926-6-18 2406 Humboldt Golf Bluffs Comment
  CDA23830  Abronia latifolia T. C. Fuller 1958-6-17 1712 Humboldt Zanone Ranch, Cape Mendocino. 0 Comment
  RSA202442  Acaena novae-zelandiae D. W. Cooper, F. Advisor 1966-10-10 s.n. Humboldt ridge just SE of Forest Service Nursery, 2 miles SE of Crannell, 4 miles E of Hwy 101 Comment
  CAS-BOT-BC330539  Acer circinatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC76199  Acer glabrum var. torreyi Overton, Butler 1979-8-2 12507 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1199019  Acer macrophyllum Joseph P. Tracy 1933-4-2 10955 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC28587  Achillea millefolium David D. Keck 1938-8-5 4775 Humboldt Big Lagoon Comment
  HSC73777  Achillea millefolium M. A. Baker 1980-6-7 1770 Humboldt Near Brush Mtn. 1128 Comment
  HSC75508  Achillea millefolium J. O. Sawyer, R. J. Cole 1977-7-3 3015 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  SD17523  Achillea millefolium Edith A. Purer 1932-7-27 4133 Humboldt Near Arcata Comment
  SD90228  Achillea millefolium Benjamin C. Stone 1952-6-25 140 Humboldt 15 miles south of Klamath on Hwy. 101. 14 Comment
  SFV18535  Achillea millefolium L. Hagenauer 2002-4-29 31 Humboldt Arcata. Path along McDaniel Slough leading to Humboldt Bay, V Street. Comment
  CHSC19744  Achlys triphylla D. E. Anderson 1965-5-1 3575 Humboldt 4--5 miles west of jct. Bluff Creek Rd. and Hw. 96, along Bluff Cr. Rd. Comment
  HSC37361  Achlys triphylla Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 493 Humboldt Along Lost Man Creek. 38 Comment
  HSC74572  Achlys triphylla M. A. Baker 1980-5-17 1190 Humboldt Near Le Perron Peak 792 Comment
  RSA12436  Achlys triphylla C. B. Wolf 1934-7-2 5857 Humboldt 2 miles from Bald Mt. on road to Korbel. 762 Comment
  UC526760  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-12 10446 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC30421  Achyrachaena mollis Doris K. Kildale 1928-5-19 5116 Humboldt Chalk Mountain Comment
  HSC71443  Acmispon micranthus J. P. Smith 1971-10-9 5047 Humboldt Mad River above the Fish Hatchery. Comment
  HSC98304  Acmispon micranthus R. J. Vernimen 1963-4-27 37 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  HSC98308  Acmispon micranthus D. B. Bader 1963-3-1 22 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  SD53240  Acmispon parviflorus Darley F. Howe 1962-5-22 3307 Humboldt 0.7 miles east of Orick on Bald Mountain Road 395 Comment
  CAS-BOT-BC412848  Aconogonon davisiae Thomas Nelson 1979-7-11 5022 Humboldt North Trinity Mountain and ridge to east. SE of Water Dog Lake 1828 Comment
  HSC82405  Aconogonon davisiae Thomas W. Nelson 1979-7-11 5021 Humboldt N Trinity Mtn. and ridge to E, SE of Water Dog Lake 1829 Comment
  CAS-BOT-BC391594  Actaea spicata var. arguta Carl B. Wolf 1937-8-11 9148 Humboldt North Coast Range, Van Duzen River, 2 7/10 mi. W. of Dinsmores 457 Comment
  UC62718  Adiantum aleuticum W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  JEPS35154  Adiantum aleuticum Joseph P. Tracy 1925-11-25 7324 Humboldt near s fork Trinity River Valley; Northern Coast Ranges 182 Comment
  SEINET11708385  Adiantum aleuticum J. P. Tracy 1951-1 19622 Humboldt Eureka Comment
  UCD137190  Adiantum jordanii K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  SEINET181170 Image available Adiantum pedatum Bassett Maguire 1934-6-8 15048 Humboldt unspecified Comment
  CAS-BOT-BC202610  Aesculus californica L. R. Abrams 1916-7-10 5965 Humboldt Between Harris and Alder Pt. Comment
  SD62068  Agoseris apargioides var. maritima Darley F. Howe 1965-8-7 4121 Humboldt Orick. Comment
  UC1239508  Agoseris apargioides var. maritima Joseph P. Tracy 1918-7-28 5090 Humboldt Ocean Beach Northern Coast Region Comment
  UC582751  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1936-6-17 14949 Humboldt nw slope Buck Mountain 792 Comment
  UC205184  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1920-7-4 5341 Humboldt on bluffs facing the ocean Little River Beach; Northern Coast Ranges 15 Comment
  UC92278  Agoseris heterophylla var. heterophylla W. W. Price 1900-6-30 Humboldt Mad River Comment
  UC165754  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1909-8-1 3070 Humboldt edge of grain field Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC582739  Agoseris heterophylla var. heterophylla H. E. Parks and Joseph P. Tracy 1934-6-27 13261 Humboldt in open places Grouse Mt. 1432 Comment
  POM126127  Agoseris hirsuta Joseph P. Tracy 1923-6-20 6316 Humboldt White Thorn Valley 305 Comment
  UC34646  Agoseris retrorsa Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  CAS-BOT-BC384739  Agrostemma githago Doris K. Kildale 1926-5-31 2018 Humboldt Miranda on South Fork of Eel River Comment
  UCD51876  Agrostis capillaris var. aristata A. H. Murphy 1947-6-20 s.n. Humboldt Tooby and Prior Ranch, near Blocksburg. Comment
  RSA10025  Agrostis densiflora Joseph P. Tracy 1927-7-17 8271 Humboldt Three Cabins; Chaparral Mountain Comment
  CAS-BOT-BC127277  Agrostis exarata Joseph P. Tracy 1904-7-10 2119 Humboldt Northern Coast Region. Eureka. 60 Comment
  CAS-BOT-BC127279  Agrostis exarata Joseph P. Tracy 1927-6-19 8193 Humboldt Northern Coast Region. Big Lagoon. 6 Comment
  CAS-BOT-BC127283  Agrostis exarata Joseph P. Tracy 1933-7-20 12809 Humboldt Along Mad River, near Blue Lake. 15 Comment
  CAS-BOT-BC127286  Agrostis exarata W. R. Dudley 1899-1-1 s.n. Humboldt Arcata. Comment
  SEINET3916252  Agrostis exarata H. E. Parks, S. T. Parks 1952-1 7553 Humboldt Spruce Cove, Trinidad.; 0 61 Comment
  UC1103388  Agrostis exarata J. P. Tracy 1901-6-23 1180 Humboldt immediate vicinity of Eureka 0 Comment
  UC212878  Agrostis exarata Joseph P. Tracy 1919-9-18 5226 Humboldt Northern Coast Ranges, Trinity Summit 1889 Comment
  UC526886  Agrostis exarata Joseph P. Tracy 1927-6-19 8193 Humboldt Big Lagoon North Coast Region 6 Comment
  HSC76547  Agrostis gigantea Teresa Prendusi 1981-7-23 341 Humboldt Near Black Mtn. 890 Comment
  HSC64165  Agrostis hallii J. O. Sawyer, K. A. Sawyer 1979-6-24 3409 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC1145065  Agrostis oregonensis Joseph P. Tracy 1950-7-31 19243 Humboldt swampy places near summit; Grouse Mountain 1615 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
  CAS-BOT-BC139060  Agrostis pallens Doris K. Kildale 1925-8-17 1261 Humboldt Trinity Summit. 1917 Comment
  HSC96541  Agrostis pallens Gordon Leppig 1997-8-3 645 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC138630  Agrostis stolonifera David D. Keck 1938-8-5 4771 Humboldt Big Lagoon. Comment
  CHSC36406  Agrostis stolonifera Donald M. Burk 1981-7-25 54 Humboldt At junction of Rd. 5N10 and Rd. 5N10C. 1249 Comment
  UCD53537  Agrostis stolonifera R. Tofsrud 1948-9-1 s.n. Humboldt Salmon Creek Ranch, about 8 miles S. of Eureka. Comment
  JEPS75413  Agrostis viridis W. L. Jepson 1932-7-26 16410 Humboldt Bull Creek 106 Comment
  HSC47784  Aira caryophyllea Michael A. Watkins 1978-6-10 10 Humboldt Arcata, E side of 7th St. overpass to Hwy. 101 Comment
  RSA257505  Aira caryophyllea H. E. Parks, S. T. Parks 1936-06 5850 Humboldt Spruce Cove, Trinidad Comment
  HSC104039  Aira elegans C. Reynolds 2015-3-21 25 Humboldt Willow Creek; At bend in Trinity River, on the east end of Kimtu beach, near Camp Kimtu 135 Comment
  CAS-BOT-BC138197  Aira praecox Joseph P. Tracy 1925-5-24 7013 Humboldt Northern Coast Ranges. Eureka. 60 Comment
  RSA256299  Aira praecox J. R. Reeder, C. G. Reeder 1973-5-26 6186 Humboldt 2 miles S of Orick in Humboldt State Park, near Pacific Shore. Comment
  UC34056  Aira praecox J. P. Tracy 1900-6-5 849 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC460751  Allium amplectens S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3401 Humboldt Crossing of Little Van Duzen River between Bridgeville and Dinsmore's. 710 Comment
  HSC44276  Allium amplectens Brad Klipfel 1973-7-1 117 Humboldt N Trinity Mtn. 1860 Comment
  HSC74089  Allium falcifolium Gail Newton 1980-6-28 679 Humboldt Near Mad River Butte 1536 Comment
  UC30070  Allium falcifolium Joseph Burtt Davy 1899-6-19 5659 Humboldt summit of ridge, Hoopa Mt. Hoopa Mt. Comment
  HSC2971  Allium triquetrum N. D. Dennis 1965-4-17 25 Humboldt 1.0 mi. from Arcata on Old Samoa Rd. Comment
  CAS-BOT-BC453427  Allotropa virgata Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC1222284  Alnus incana subsp. tenuifolia Joseph P. Tracy 1950-8-8 19286 Humboldt Croghan Hole Trinity Summit 1676 Comment
  POM106497  Alnus rubra Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  POM160842  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit. 1829 Comment
  UC1103313  Alopecurus geniculatus Joseph P. Tracy 1942-6-2 17091 Humboldt at R.R. trestle Loleta 9 Comment
  UC1152032  Alopecurus saccatus Joseph P. Tracy 1951-6-21 19525 Humboldt back of Everett Beck house (formerly George Gray) Hydesville (bed of former Goose Lake) Comment
  HSC35864  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2130 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  CAS-BOT-BC142905  Amelanchier Doris K. Kildale; L. B. Kildale 1930-5-11 9559 Humboldt McClellan Hill near Bridgeville 609 Comment
  HSC102083  Amelanchier alnifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 987 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC76240  Amelanchier alnifolia var. semiintegrifolia Denis Kearns 1981-6-24 23 Humboldt Near Cedar Camp 1219 Comment
  HSC24391  Amelanchier pallida J. O. Sawyer 1970-6-24 2218 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  JEPS45134  Amelanchier utahensis W. L. Jepson 1902-7-15 2031 Humboldt Mud Spring to Trinity Summit 1524 Comment
  UC1198748  Amelanchier utahensis Joseph P. Tracy 1932-7-18 10719 Humboldt Head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  SEINET200930  Ammophila arenaria J. P. Tracy 1918-7-28 5087 Humboldt Humboldt Bay particularly Samoa Comment
  RSA0090986  Amsinckia intermedia H. E. Parks, J. Tracy 1930-5-25 881 Humboldt Near Bridgeville. Comment
  HSC17831  Anagallis arvensis D. B. Bader 1963-3-1 7 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC69770  Anagallis arvensis R. Kalal 1979-4-21 79 Humboldt Misty Mtn. Tree Farm, Hookton Rd. near Loleta 46 Comment
  POM286830  Anagallis arvensis Lyman Benson 1929-7-19 1585 Humboldt Weet Ranger St. Comment
  CAS-BOT-BC45134  Anaphalis margaritacea Roxana S. Ferris 1937-8-21 9387 Humboldt Shelter Cove Comment
  HSC27391  Anaphalis margaritacea Thomas W. Nelson 1970-9-3 230 Humboldt Mad River. Comment
  SBBG44954  Anaphalis margaritacea C. B. Wolf 1927-8-30 Humboldt 2 mi S of Petrolia on Mattole River, near where road crosses river Comment
  CAS-BOT-BC45139  Anaphalis margaritacea Mrs. H. C. Cantelow 1936-8-29 s.n. Humboldt 17 mi N of Garberville, S Fork Eel River, 1 mi off Rw. Highway 198 [Redwood Highway?] 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
  HSC56303  Anemone deltoidea Overton, Butler 1979-8-2 12610 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC160912  Anemone oregana Joseph P. Tracy 1909-4-4 2949 Humboldt s foot of Humboldt Hill (near Buhne's Ranch, region about Humboldt Bay); North Coast Ranges 0 Comment
  BLMAR662  Angelica hendersonii Jennifer Wheeler 2012-7-12 662 Humboldt King range, Strawberry rock 253 Comment
  CAS-BOT-BC221417  Angelica hendersonii L. R. Abrams 1927-9-1 12065 Humboldt Stone Lagoon Comment
  CAS-BOT-BC221419  Angelica hendersonii Carl B. Wolf 1937-9-9 9304 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  UC642351  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  OBI9037  Angelica tomentosa Tracey Call, Viola Call 1966-8-1 2518 Humboldt 2.5 mi up Three Creek Rd. from Willows 427 Comment
  SEINET13943409 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
  CAS-BOT-BC271490  Anisocarpus madioides Doris K. Kildale 1927-4-30 1912 Humboldt Fruitland Hill, Ham's Road Comment
  UCD128893  Anisocarpus madioides K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  UC205188  Antennaria media Joseph P. Tracy 1919-9-24 5293 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  SEINET2031154 Image available Anthemis cotula J. P. Tracy 1909-7-4 3011 Humboldt Immediate vicinity of Eureka Comment
  HSC103785  Anthemis cotula M. Mesler, K. A. Wayman 2015-8-4 1646 Humboldt Trail between Mill Creek Lakes trail head and Andy's Camp 1633 Comment
  UC1100218  Anthoxanthum odoratum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1208 Humboldt 2 mi n of Eureka (bordering Humboldt Bay); Humboldt Bay Comment
  UC526831  Anthoxanthum odoratum Joseph P. Tracy 1925-7-5 7164 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, 1066 Comment
Read comments
Jul 18 2012
  UCD81681  Anthoxanthum odoratum Chuck Hughes 2009-6-18 101 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  JEPS5352  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1935-10-13 14756 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC162567  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1911-7-10 3482 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  HSC35591  Aquilegia formosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2002 Humboldt At French Camp, Bald Hills Comment
  UC161578  Aquilegia formosa Joseph P. Tracy 1911-6-4 3222 Humboldt 5 mi from coast (along Little River); Northern Coast Ranges 121 Comment
  HSC18041  Aquilegia formosa var. formosa N. D. Dennis 1965-5-8 57 Humboldt 2.5mi N of Willow Creek Comment
  HSC56075  Aquilegia formosa var. truncata G. L. Clifton, Griswold 1979-7-31 11751 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC102930  Arabis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 929 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC58213  Arabis glabra Walter Overton 1979-8-1 12342 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC6527  Arabis glabra D. E. Anderson 1962-7-10 2245 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  HSC100458  Arabis perfoliata Carl C. Marshall Jun 1887 403 Humboldt Harris. Comment
  HSC72985  Aralia californica M. A. Baker 1980-5-17 1191 Humboldt Near Le Perron Peak 792 Comment
  HSC98778  Aralia californica Cara Witte 2007-7-25 579 Humboldt Forest Service Road 5N10. Approximately 2 miles south from intersection with Forest Service Road 5N41. 1290 Comment
  RSA21582  Aralia californica C. B. Wolf 1937-9-8 s.n. Humboldt North Coast Range, Bull Creek- Petrolia Road, 12 mi W of Redwood Highway 457 Comment
  HSC60008  Arbutus menziesii M. A. Baker 1977-5-8 259 Humboldt Gray's Falls Comment
  HSC79369  Arbutus menziesii Kenneth Clark 1980-11-28 1050 Humboldt Above Point No Pass 488 Comment
  UC1222643  Arbutus menziesii Joseph P. Tracy 1951-5-20 19401 Humboldt near Ashfield Ridge (Kneeland Prairie); Kneeland Prairie 762 Comment
  UC154180  Arbutus menziesii P. E. Goddard 1901-7-12 65 Humboldt Hupa Valley Comment
  HSC98835  Arceuthobium campylopodum Cara Witte 2008-7-25 926 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N36A. Near intersection with Forest Service Road 6N36B. 1355 Comment
  UC180189  Arctium minus Joseph P. Tracy 1914-10-4 4631 Humboldt Table Bluff Northern Coast, Humboldt Bay 0 Comment
  JEPS44153  Arctium minus Milo S. Baker 1923-8-25 444 Humboldt 41 mi s, along highway in Redwood grove Alton; North Coast Comment
  UC1182190  Arctostaphylos J. A. Delapp 1959-10-7 57 Humboldt 5 3/4 mi ne Schoolits Peak (Wiregrass Prairie, Plot V1); Quad 11 C-1 853 Comment
  UC1198678  Arctostaphylos Joseph P. Tracy 1933-4-9 10970 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC1225939  Arctostaphylos X media Joseph P. Tracy 1945-3-30 17504 Humboldt Eureka 45 Comment
  CAS-BOT-BC25211  Arctostaphylos canescens subsp. canescens J. P. Tracy 1927-5-15 8058 Humboldt Hoopa Mountain. On road W from Hoopa Valley Comment
  CAS-BOT-BC23730  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15439 Humboldt Eureka 45 Comment
  CAS-BOT-BC23770  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. betwwn Shelter Cove and Kenny Comment
  CAS-BOT-BC23798  Arctostaphylos columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's point Comment
  CAS-BOT-BC23812  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
  JEPS19867  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6142 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  LA42320  Arctostaphylos columbiana H. E. Parks; December 1931 4950 Humboldt Hobson's Trinidad 60 Comment
  RSA622689  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27672 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC924266  Arctostaphylos columbiana H. S. Reed 1941-7-27 Humboldt coastal bluffs Orick Comment
  RSA254754  Arctostaphylos columbiana var. columbiana Thomas W. Nelson 1975-3-20 1750 Humboldt Along Kneeland Rd. just south of its junction with Maple Creek Rd. Losey property. 671 Comment
  UC1193023  Arctostaphylos glandulosa subsp. glandulosa R. E. Nelson 1950-7-26 146 Humboldt 1/2 mi nw Neafus Peak; Quad. 29D1 762 Comment
  UC585934  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13330 Humboldt 5 mi s Harris (on road towards Bell Springs); North Coast Ranges 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-BC45880  Arctostaphylos nevadensis Joseph P. Tracy 1932-7-12 10474 Humboldt Trinity Summit, Head of Brett Hole 1828 Comment
  HSC68139  Arctostaphylos nevadensis J. P. Smith, J. O. Sawyer 1973-5-12 6689 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS38953  Arctostaphylos nevadensis Joseph P. Tracy 1927-5-15 8059 Humboldt on road w from Hoopa Valley Hoopa Mt. 914 Comment
  UCD52857  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1976-10-26 1177 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  SEINET11989092  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1174 Humboldt 21.4 mi E of US 101 on Bald Hills Rd from Orick, French Camp Ridge Comment
  HSC74654  Arctostaphylos patula M. A. Baker 1980-5-17 1269 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC43978  Arctostaphylos uva-ursi Doris K. Kildale 1927-9-9 3306 Humboldt Big Lagoon Comment
  CAS-BOT-BC43990  Arctostaphylos uva-ursi Doris Kildale Gillespie 1931-6-7 10660 Humboldt South Fork Mt. Black Lookout 1726 Comment
Read comments
May 16 2019
  UC527561  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa Humboldt Bay 7 Comment
  RSA337436  Arctostaphylos uva-ursi var. coactilis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35148 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC48259  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1939-4-29 16265 Humboldt Orleans 121 Comment
  UCD20371  Arctotheca calendula John T. Kennedy 2002-5-9 s.n. Humboldt Centerville Rd., 2.5 miles from ocean. Comment
  HSC16898  Armeria maritima subsp. californica L. H. Myers 1963-5-5 2 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  HSC16904  Armeria maritima subsp. californica R. J. Vernimen 1963-4-27 41 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  UCD98448  Armeria maritima subsp. californica Linda M. Barker 1976-6-1 1553 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC49992  Arnica cernua M. A. Baker 1979-6-7 791 Humboldt 1250 Comment
  UC302176  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  CAS-BOT-BC82431  Arnica discoidea Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  HSC58598  Arnica latifolia G. L. Clifton, Griswold 1979-7-25 10755 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  RSA167206  Arnica latifolia Joseph P. Tracy 1942-6-23 17236 Humboldt Near Box Camp 1463 Comment
  UC198625  Artemisia douglasiana Joseph P. Tracy 1917-9-3 4856 Humboldt head of Redwood Creek (Janes Ranch) 914 Comment
  JEPS37048  Artemisia dracunculus W. L. Jepson 1932-7-28 16437 Humboldt Dyerville Comment
  SEINET198593  Artemisia pycnocephala H. E. Parks, S. T. Parks Jun 1952 24495 Humboldt Samoa Comment
  UCSB9161  Artemisia pycnocephala Parks, H.; Parks, S. 1952-06 Humboldt Samoa Comment
  HSC90475  Artemisia pycnocephala Jean Hanson 1980-8-28 123 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  UC198579  Aruncus dioicus var. pubescens Joseph P. Tracy 1916-6-25 4749 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  HSC102182  Asarum caudatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1096 Humboldt Patterson Meadows 1566 Comment
  SEINET6652459  Asarum caudatum R. R. Halse 2011-3-25 8163 Humboldt Along U.Sl. Hwy 101 ca 2.8 miles S of Stafford, near Exit 674. 74 Comment
  HSC98125  Asarum caudatum Cara Witte 2007-6-28 379 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  RSA114387  Asarum caudatum G. R. Campbell 1955-9-20 21468 Humboldt 4 mi. NE of Strongs Station (Van Duzen River) on Yager road Comment
  SEINET12094123  Asarum caudatum F. H. Utech 1988-1 88 -294 Humboldt 1.5 mi N of Orick on US 101 & 0.5 mi SE on Bald Hills Road 400 Comment
  SEINET12097886  Asarum caudatum H. P. Chandler 1901-1 1267 Humboldt Redwood Belt 457 Comment
  UC1197610  Asclepias cordifolia Joseph P. Tracy 1935-7-31 14392 Humboldt ridge connecting Trinity Summit with Salmon Summit; Devil's Backbone 1676 Comment
  HSC40010  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC54555  Aspidotis densa Overton, Butler 1979-7-24 9561 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  UCD137278  Aspidotis densa Gordon Leppig 1998-7-1 861 Humboldt Ammon Ridge Rd., 1 k east of Titlow Hill Rd. 1432 Comment
  CDA10236  Aster chilensis E. C. Whitney 1963-9-17 Humboldt Lamphere Road, Arcata. 0 Comment
  UCR51819  Aster occidentalis var. occidentalis Thomas W. Nelson, J. Nelson 1977-9-3 3726 Humboldt Along creek draining north from pond above Alder Spring 1445 Comment
  HSC95155  Astragalus agnicidus Gordon Leppig 2003-7-10 2004 Humboldt Pacific Lumber Co. land, common along logging road and landing 700 Comment
  HSC96346  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land, edge of logging road. 700 Comment
  RSA104885  Astragalus agnicidus R. C. Barneby 1954-5-19 11570 Humboldt Over ridge on Henry Tosten ranch near Bear Buttes area. 4 miles south of Miranda. 762 Comment
  UC1197707  Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. 762 Comment
  CAS-BOT-BC193088  Astragalus pycnostachyus var. pycnostachyus W. S. Cooper 1925-7-29 s.n. Humboldt Samoa Comment
  UC162811  Astragalus rattanii var. rattanii Joseph P. Tracy 1903-5-23 1903 Humboldt along sand bars of Eel River at Alder Point; Northern Coast Ranges, Eel River at Alder Point 91 Comment
  RSA167271  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt Bald Mountain; ''Lake Prairie''. 1066 Comment
  HSC41304  Asyneuma prenanthoides Brad Klipfel 1974-7-23 467 Humboldt Horse Mtn. Comment
  HSC76042  Asyneuma prenanthoides Overton, Butler 1979-8-2 12569 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  OBI1144  Athyrium filix-femina Robert J. Rodin 1941-8-2 Humboldt Under redwood trees in shady places near Pepperwood Comment
  RSA46703  Athyrium filix-femina subsp. cyclosorum Doris K. Kildale 1928-12-29 6762 Humboldt Stevens Grove Comment
  HSC54545  Athyrium filix-femina var. cyclosorum Overton, Butler 1979-7-23 9532 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC55184  Athyrium filix-femina var. cyclosorum G. L. Clifton, Terry Griswold 1979-8-2 12228 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC667959  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1937-7-25 15557 Humboldt ne of Hawkins Bar Happy Camp Mt; Trinity Summit Range 1280 Comment
  HSC77503  Athysanus pusillus L. P. Janeway 1983-5-21 300 Humboldt Above Titlow Hill Rd., 3.3 mi S of Hwy. 299 1250 Comment
  CDA18213  Avena barbata G. D. Barbe, T. C. Fuller 1974-6-17 1841 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  HSC102945  Avena barbata J. P. Smith 2009-5-30 12598 Humboldt Arcata. Near intersection of Valley West and Giuntoli Road Comment
  UC1152028  Avena sativa Joseph P. Tracy 1951-5-26 19511 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD136023  Azolla filiculoides Malcolm A. Nobs; S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach. Comment
  CAS-BOT-BC98768  Baccharis douglasii L. R. Abrams 1916-7-18 6111 Humboldt Arcata to Trinidad, 18 mi. along the coast Comment
  JEPS40681  Baccharis glutinosa W. L. Jepson 1932-8-1 16465 Humboldt Bull Creek 121 Comment
  UC169039  Baccharis pilularis Joseph P. Tracy 1912-10-20 4003 Humboldt Alton 30 Comment
  POM36319  Balsamorhiza hookeri var. lagocephala Geo. D. Butler 1909-4-14 635 Humboldt Dry hill near Eureka Comment
Read comments
Dec 1 2014
  CAS-BOT-BC16363  Barbarea orthoceras Doris K. Kildale 1927-7-22 3828 Humboldt Lassecks Peaks - Coral Goat Camp. 1661 Comment
  UC1198288  Barbarea orthoceras Joseph P. Tracy 1913-4-13 4037 Humboldt on a branch of Ryans Slough about 3 miles East of Eureka 152 Comment
  HSC6585  Barbarea verna D. E. Anderson 1962-3-31 1968 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  HSC5190  Bellis perennis A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction: N Bank; 100 yards W of Lindsey Creek Comment
  JEPS8437  Bensoniella oregona Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3410 Humboldt long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) High Prairie; btw Mad River and Redwood Crk (Bald Mountain ridge), High Pr 1066 Comment
  UC1046538  Bensoniella oregona R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3416 Humboldt Snow Camp Bald Mountain Ridge (ridge between Mad River and Redwood Creek, Bald Mountain Ridge); Bald Mountain ridge, btw Mad River and Redwood Creek 1432 Comment
  HSC76277  Berberis aquifolium var. repens Denis Kearns 1981-7-6 65 Humboldt Near Mosquito Lake 1256 Comment
  SD56733  Berberis nervosa Darley F. Howe 1963-5-26 3555 Humboldt 3.2 miles east of Orick on Ball Hill Road 455 Comment
  UC1198381  Berberis nervosa Joseph P. Tracy 1926-6-13 7597 Humboldt Liscom Hill road near Blue Lake 152 Comment
  HSC3366  Berberis pinnata G. N. Bos 1965-5-2 246 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  LA212250  Berberis piperiana A Arpaia; June 1966 s.n. Humboldt Willow Creek at Trinity River. 914 Comment
  OBI16932  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Crk. Below Orleans 8 mi Comment
  UCD129580  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. From Orleans down the river. 121 Comment
  HSC984  Blechnum spicant Gene S. Van Horn 1962-1-5 5 Humboldt Arcata, Near mouth of W Creek entering H.S.C. reservoir 61 Comment
  POM319594  Blechnum spicant Patricia Wilder 1968-8-21 4382 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  UCD140030  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1998-6-25 851 Humboldt Route 101 milemarker 81.60. East side of highway. 2 Comment
  HSC39874  Bolboschoenus robustus Peter Sorensen 1976-8-6 Humboldt King Salmon Comment
  HSC3558  Borago officinalis William J. Ferlatte 1963-4-21 15 Humboldt Near 11th and A St., Arcata Comment
  HSC56319  Boykinia major Overton, Butler 1979-8-2 12658 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76264  Boykinia major Denis Kearns 1981-7-23 410 Humboldt Near Whiteys Peak. 1524 Comment
  CHSC33047  Boykinia occidentalis James. P. Smith 1973-1-1 6845 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  JEPS49652  Boykinia occidentalis Harley P. Chandler June, 1901 1501 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  HSC100718  Brassica campestris Carl C. Marshall May 1886 206 Humboldt Fields. Comment
  HSC38345  Brassica nigra Peter Sorensen 1976-6-14 Humboldt North Spit Comment
  HSC98960  Brassica nigra Cara Witte 2007-7-24 573 Humboldt Ammon Ridge Road. At intersection with 5N15. 1441 Comment
  HSC6584  Brassica rapa Richard Steele 1962-2-25 2 Humboldt Arcata, 0.5 mi. W of HSU campus 15 Comment
  UC581796  Brickellia californica Joseph P. Tracy 1934-9-30 13681 Humboldt Bridgeville 198 Comment
  HSC9092  Briza minor R. Spellenberg 1964-6-15 406 Humboldt 0.5 mi. S of Humboldt Hill exit, 5 mi. S of Eureka Comment
  UC1844146  Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton (Northern Coast Region) Comment
  UC37551  Briza minor Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5473 Humboldt Elk Prairie Comment
  SBBG10871  Brodiaea elegans subsp. elegans D. E. Breedlove 1961-7-4 650 Humboldt 10.9 mi W of Willow Crk on US Hwy 299 822 Comment
  UCR123923  Brodiaea elegans subsp. elegans George K. Helmkamp, E. A. Helmkamp 2001-7-8 6967 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  HSC48787  Brodiaea elegans subsp. elegans Brad Klipfel 1974-7-23 478 Humboldt Along Titlow Hill Rd. Comment
  POM277017  Brodiaea elegans subsp. elegans Lyman Benson 1929-7-19 1871 Humboldt Hills toward Matola River from Bull Creek. Comment
  HSC37548  Brodiaea terrestris subsp. terrestris J. D. Ackerman 1975-6-10 457 Humboldt 1 mi. N of Samoa bridge turnoff from Samoa Blvd., S of Manila Comment
  UC1103281  Bromus carinatus var. carinatus Joseph P. Tracy 1941-6-15 16910 Humboldt Wilder Ridge 609 Comment
  UC1145158  Bromus carinatus var. carinatus Joseph P. Tracy 1936-8-2 15070 Humboldt French Camp Ridge 1066 Comment
  UC37672  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  UCD59082  Bromus carinatus var. marginatus Joseph P. Tracy 1950-6-15 18786 Humboldt Mail Ridge. North of Harris 7 miles. 1036 Comment
  HSC26616  Bromus commutatus J. P. Smith, Steve Selva 1970-6-14 3826 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  UC207700  Bromus commutatus Joseph P. Tracy 1917-6-24 4824 Humboldt along Eel River from South Fork to Scotia, Holmes Flat Eel River; Northern Coast Ranges, , Holmes Flat 60 Comment
  HSC9294  Bromus diandrus R. T. Forester 1963-4-30 53 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC9295  Bromus diandrus R. H. Berg 1963-5-12 72 Humboldt King Salmon, S of Eureka. Comment
  UC1103348  Bromus diandrus Joseph P. Tracy 1942-5-23 17087 Humboldt at Eureka Eureka 30 Comment
  OBI22382  Bromus orcuttianus Joseph P. Tracy 1936-8-8 15124 Humboldt Trinity Summit On ridge 2 mi E of Grove's Prairie 1463 Comment
  UC552678  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt Northern Coast Ranges, French Camp Ridge French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  UC179918  Bromus vulgaris Joseph P. Tracy 1912-7-27 3884 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCD60234  Bromus vulgaris P. B. Kennedy 1923-8-3 s.n. Humboldt South of Scotia. Comment
  UCD60242  Bromus vulgaris A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  RSA43838A  Buddleja davidii H. M. Pollard 1947-8-9 s.n. Humboldt Klamath River near Harley Place, Orleans region Comment
  UCR93380  Buddleja davidii Kathy Harper, Dane Karr 1994-6-14 s.n. Humboldt North Coast Range, 11-12 mi. north of Willow Creek on State Hwy 96, c. 0.25 mi. north of 'vista point' along Trinity River 30 Comment
Read comments
Apr 27 2007
  HSC95586  Cakile edentula Andrea Pickart 2002-7-8 160 Humboldt N Spit Dunes, Mad River Co. Park, W of parking area 0 Comment
  UC1191446  Cakile edentula Malcolm A. Nobs, S. Galen Smith 1949-8-11 1337 Humboldt e shore of Stone Lagoon Stone Lagoon Comment
  HSC64071  Cakile maritima J. P. Smith 1971-10-6 4956 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1198279  Cakile maritima Joseph P. Tracy 1946-1-13 17517 Humboldt Centerville Beach 3 Comment
  UCD114943  Cakile maritima Linda M. Barker 1976-9-3 1694 Humboldt 3 miles west of Arcata. Comment
  SEINET11993511  Cakile maritima F. H. Utech 1986-1 86 -403 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  HSC74068  Calamagrostis foliosa Joyce Walker 1980-5-7 Humboldt Four Mile Creek Comment
  RSA729025  Callitriche heterophylla var. bolanderi R. F. Thorne, P. C. Everett 1965-8-9 35323 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC62828  Callitriche stagnalis J. M. DiTomaso 1979-4-21 888 Humboldt Fresh water creek at Clam Beach, 9 mi. N of Arcata. Comment
  UC668185  Callitriche trochlearis Joseph P. Tracy 1936-6-17 14952 Humboldt nw slope Buck Mountain (lower foothills) 762 Comment
  HSC56953  Calocedrus decurrens Overton, Butler 1979-7-23 9457 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC76318  Calocedrus decurrens Teresa Prendusi 1981-7-9 242 Humboldt Near Slate Creek Butte 1122 Comment
  UC1103462  Calochortus coeruleus Joseph P. Tracy 1930-7-17 9027 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC15342  Calochortus tolmiei Elrid H. Spinas 1948-6-16 58 Humboldt Horse Mtn. Comment
  SEINET3992100  Calochortus tolmiei Lincoln Constance, Alan A. Beetle, Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka, Quercus Garryana forest 762 Comment
  UC1199383  Calycadenia fremontii Joseph P. Tracy 1925-7-12 7204 Humboldt near South Fork of Trinity River; Trinity River Valley 304 Comment
  UC195065  Calycadenia truncata Joseph P. Tracy 1916-9-5 4755 Humboldt head of Canoe Creek Northern Coast Ranges, Grasshopper Ridge 609 Comment
  HSC36647  Calypso bulbosa J. D. Ackerman 1975-6-4 443 Humboldt 5 mi. E of hwy. 101, on Bald Hills Rd. Redwood Natl. Park 396 Comment
  UCD138888  Calypso bulbosa var. occidentalis Julie Lortz 1966-5-14 66 -51 Humboldt 26 mile east of Willow Creek. 1219 Comment
  HSC39107  Calyptridium monospermum D. E. Anderson, J. P. Smith 1971-6-18 - 1090 Humboldt Horse Mtn. Comment
  HSC97957  Calystegia occidentalis subsp. occidentalis Cara Witte, Michael Scott 2007-6-22 350 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  UC1222149  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1950-6-15 18797 Humboldt 7 mi n Harris (Mail Ridge); n of Harris, Mail Ridge Comment
  HSC40013  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1976-7-1 2914 Humboldt N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC49802  Calystegia soldanella R. York 1979-5-18 295 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  HSC93522  Calystegia soldanella Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 747 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  POM232320  Calystegia soldanella I. L. Wiggins 1930-7-7 4669 Humboldt Sand dunes near Samoa. Comment
  RSA79376  Camissonia contorta E. K. Balls, L. W. Lenz 1952-5-12 17202 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  UC1196947  Camissonia contorta Joseph P. Tracy 1939-4-29 16244 Humboldt mouth of Slate Cr. Klamath River 121 Comment
  HSC16464  Camissonia strigulosa Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
Read comments
Dec 14 2019
  RSA120762  Campanula prenanthoides S. S. Tillett 1956-7-6 612 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 488 Comment
  SEINET10462964  Campanula prenanthoides Newton 1981-8-6 Newton 2408 Humboldt Iaqua Buttes Quad, near Mad River, N slope, sedimentary soil. 1308 Comment
  SEINET10462970  Campanula prenanthoides Sandborg 1968-7-19 SANDBORG 54 Humboldt Bluff Creek near Notice Creek, forest floor near road below Notice Creek bridge. T10N R4E Comment
  HSC98724  Campanula scouleri Cara Witte 2008-7-16 919 Humboldt Forest Service Road 4N38. At intersection to Board Camp Lookout. 1414 Comment
  SEINET10463759  Campanula scouleri Joseph P. Tracy 1937-7-25 Tracy 15560 Humboldt Happy Camp Mountain; in Trinity Summit Range, northeast of Hawkins Bar, moist bank. 1280 Comment
  JEPS53316  Cardamine angulata Joseph P. Tracy 1926-6-12 7588 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC37425  Cardamine californica Doris K. Kildale 1929-4-27 7444 Humboldt Lord Ellis road near Bald Mountain junction. (road to Willow Creek). Comment
  CAS-BOT-BC37429  Cardamine californica Parks; Tracy 1931-3-26 0916 Humboldt Lower Van Duzen River. 60 Comment
  HSC44273  Cardamine californica Barbara Kelly 1977-4-23 299 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground, between campsite and marsh 561 Comment
  HSC6683  Cardamine californica Lincoln Constance, R. C. Rollins 1942-5-20 2998 Humboldt Eel River, 1 mi. N of Pepperwood 46 Comment
  HSC73768  Cardamine californica M. A. Baker 1980-6-7 1773 Humboldt Near Brush Mtn. 1128 Comment
  UC183543  Cardamine californica Joseph P. Tracy 1913-3-9 4016 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 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
  POM272917  Cardamine californica var. integrifolia H. E. Parks, Joseph P. Tracy 1931-3-26 916 Humboldt Lower Van Duzen River. 61 Comment
  POM266034  Cardamine californica var. integrifolia Lincoln Constance, Reed C. Rollins 1942-5-20 2998 Humboldt Eel River 1 mile N of Pepperwood. 46 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
  HSC91607  Cardionema ramosissimum E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  SEINET10932251  Cardionema ramosissimum Mary Susan Taylor 1990-8-22 Taylor 6085 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC668108  Cardionema ramosissimum Joseph P. Tracy 1933-8-22 12993 Humboldt mouth of Eel R. 3 Comment
  SEINET201070  Carduus pycnocephalus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mt 762 Comment
  SEINET10823822  Carex A. Arthur Heller 1923-7-10 Heller 13797 Humboldt Wet soil along the Eel river between Scotia and Pepperwood in the redwood belt. Comment
  UC1103586  Carex amplifolia Joseph P. Tracy 1933-8-6 12948 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC17982  Carex aquatilis Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  HSC70473  Carex aquatilis var. dives J. P. Tracy 1906-5-13 2459 Humboldt Humboldt Bay, Ocean Beach Comment
  HSC96377  Carex arcta Gordon Leppig, Tony LaBanca 2005-9-21 2321 Humboldt Pacific Lumber Company land; Clark Mountain Fen, Headwaters of Root Creek on NW side of Clark Mountain. 400 Comment
  HSC98944  Carex athrostachya Cara Witte 2008-7-16 922 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  UC562630  Carex athrostachya Joseph P. Tracy 1935-7-27 14306 Humboldt Trinity Summit, open places at McKay Prairie 1584 Comment
  HSC44019  Carex athrostachya Thomas W. Nelson, Jane P. Nelson 1977-7-4 3591 Humboldt Beside pond above Alder Springs 1585 Comment
  JEPS63598  Carex barbarae Lincoln Constance 1934-6-7 772 Humboldt Cabin Creek Bridge, on Bull Creek Road Comment
  RSA364615  Carex barbarae Henry M. Pollard 1948-7-29 s.n. Humboldt At Woodson Mine, near Orleans. Comment
  CAS-BOT-BC19434  Carex bolanderi Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1371 Comment
  UC1103111  Carex bolanderi Joseph P. Tracy 1933-6-13 12595 Humboldt Hoopa Mountain, near summit on road west from Hoopa to Bair's 1066 Comment
  UC562277  Carex bolanderi Joseph P. Tracy 1935-7-23 14162 Humboldt Trinity Summit, lower end of Brett Hole 1584 Comment
  BLMAR502  Carex bolanderi Jennifer Wheeler 2009-5-9 502 Humboldt Headwaters Forest Reserve, HRC U08 Road; spur close to Elk River Comment
  HSC98948  Carex bolanderi Cara Witte 2008-7-25 934 Humboldt Friday Ridge Rd. (6N08). Approximately 1 mile east of intersection with Forest Service Road 5N10. 1325 Comment
  CAS-BOT-BC19614  Carex brainerdii Joseph Prince Tracy 1937-7-24 15525 Humboldt Trinity Summit. Head of Devil's Hole. 1767 Comment
  POM313080  Carex cusickii Malcolm A. Nobs, S. Galen Smith 1949-8-3 1197 Humboldt Southern outskirts of Eureka Comment
  UC562256  Carex densa Joseph P. Tracy 1936-6-17 14953 Humboldt Buck Mountain, lower foothills of its northwest slope Northern Coast Ranges 762 Comment
  UC194805  Carex deweyana subsp. leptopoda Joseph P. Tracy 1913-6-22 4267 Humboldt Dinsmore's Ranch in valley of Van Duzen River, opposite Buck Mountain 0 Comment
  JEPS121644  Carex echinata Jennifer Buck, Danielle Roach 2009-8-20 Humboldt Doehop Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM04A Comment
  SEINET2044705 Image available Carex echinata var. ormantha Juha Pykala, D. H. Norris 1987-6-11 1611 Humboldt North Trinity Mountian Wilderness, W of Crogan Hole. 1555 Comment
  SEINET7708306 Image available Carex feta J. P. Tracy 1950-7-6 19010 Humboldt Albee Road; Buck Mountain, 3 mi S of Burr Valley Comment
  UC1103593  Carex hendersonii Joseph P. Tracy 1937-6-20 15348 Humboldt 10 mi upstream mouth of Bear River; Bear River 152 Comment
  JEPS75426  Carex hendersonii W. L. Jepson 1932-8-2 16474 Humboldt Deer-foot Flat Dyerville, Bull Creek, Deer-foot Flat 88 Comment
  HSC44527  Carex hoodii Brad Klipfel 1973-7-1 135 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC562264  Carex jonesii Joseph P. Tracy 1932-7-15 10573 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC562250  Carex lenticularis var. impressa Joseph P. Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC28502  Carex lenticularis var. limnophila Joseph Prince Tracy 1923-6-17 6275 Humboldt Big Lagoon 6 Comment
  RSA88710  Carex lenticularis var. limnophila F. W. Peirson 1926-7-13 7046 Humboldt Along shore of first lagoon south of Orick. Comment
  CAS-BOT-BC21120  Carex leptalea Joseph Prince Tracy 1918-7-21 5086 Humboldt Northern Coast Range. Humboldt Hill. 91 Comment
  RSA88691  Carex leptopoda F. W. Peirson 1923-7-11 3665 Humboldt 18 miles N. of Eureka Comment
  JEPS79849  Carex lyngbyei Joseph P. Tracy 1927-7-16 8248 Humboldt near mouth Elk River (around Humboldt Bay); Northern Coast Region 3 Comment
  UC1115809  Carex lyngbyei Joseph P. Tracy 1938-7-15 16069 Humboldt mouth Eel River 3 Comment
  UC562321  Carex lyngbyei Joseph P. Tracy 1935-6-8 13945 Humboldt around Humboldt Bay; Northern Coast Region 6 Comment
  UC2015846  Carex multicaulis Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4360 Humboldt Coast Range, Buck Mountain Comment
  HSC26097  Carex multicostata J. O. Sawyer 1970-6-27 2303 Humboldt 1829 Comment
  HSC48134  Carex multicostata D. H. Norris 1971-7-17 19597 Humboldt At intersection of Kneeland-Bridgeville road and Redwood House road Comment
  UC562268  Carex nervina Joseph P. Tracy 1932-7-16 10627 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC119548  Carex nudata A. A. Heller 1923-7-10 13797 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  SEINET10711630  Carex nudata A. Arthur Heller 1923-7-10 Heller 13795 Humboldt Wet soil along the Eel River between Scotia and Pepperwood in the redwood belt. Comment
  UC562318  Carex nudata Joseph P. Tracy 1927-5-30 8082 Humboldt near Garberville (Redwood Creek) 121 Comment
  CHSC42989  Carex obnupta L. P. Janeway 1987-7-31 2548 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  UC1103606  Carex obnupta J. P. Tracy 1899-5-24 319 Humboldt immediate vicinity Eureka 0 Comment
  HSC7066  Carex obnupta Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  SEINET10711656  Carex obnupta David Castaner 1984-5-28 Castaner 8064 Humboldt Patrick State Park. Redwood Forest Area. Comment
  JEPS80014  Carex ovalis Joseph P. Tracy 1926-6-20 7631 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1463 Comment
  HSC48138  Carex ovalis D. H. Norris 1971-7-17 19601 Humboldt Along Redwood House Rd., about 3 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  CAS-BOT-BC119230  Carex pachystachya Joseph Prince Tracy 1927-5-29 8077 Humboldt Big Lagoon 6 Comment
  HSC82386  Carex pachystachya Thomas W. Nelson 1979-7-11 5012 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC119221  Carex pachystachya Harold Ernest Parks; Joseph Prince Tracy 1935-6-16 11271 Humboldt Buck Mt. Lower NW slope. 792 Comment
  HSC45475  Carex pachystachya Thomas W. Nelson, Jane P. Nelson 1978-7-2 4407 Humboldt Along margin of Lost Lake 1433 Comment
  CHSC42978  Carex pansa L. P. Janeway 1987-7-31 2537 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  CAS-BOT-BC119163  Carex pansa Joseph Prince Tracy 1935-7-18 14104 Humboldt Low sandy ground at edge of salt marsh, next to Table Bluff. Around Humboldt Bay. 3 Comment
  CAS-BOT-BC119166  Carex pansa Joseph Prince Tracy 1935-7-18 14104 Humboldt Low sandy growth at edge of sald marsh next to Table Bluff. 3 Comment
  HSC49246  Carex pansa Rudolf W. Becking 1979-3-25 Humboldt U.S. Coast Guard Station along N Spit Humboldt Bay, Fairhaven Comment
  CAS-BOT-BC118598  Carex praticola Joseph Prince Tracy 1914-5-3 4421 Humboldt At Eureka 60 Comment
  HSC76847  Carex praticola L. P. Janeway 1982-6-20 15 Humboldt Near road underdrain, 30 m N on FS Rd. 6N36 from Titlow Hill Rd. 1384 Comment
  CAS-BOT-BC118230  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-17 10675 Humboldt Trinity Summit. Wet meadow heading into Devil's Hole. 1828 Comment
  JEPS25972  Carex subbracteata Joseph P. Tracy 1935-5-25 13885 Humboldt Dobbyn Creek 152 Comment
  SEINET200796  Carex subbracteata J. P. Tracy 1928-6-24 8465 Humboldt Valley of S Yager Creek 0 Comment
  CAS-BOT-BC116907  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-22 4725 Humboldt Near Harris Comment
  CAS-BOT-BC116909  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-22 4737 Humboldt Near Alder Point Comment
  JEPS109249  Carex subfusca D. W. Taylor 2007-7-11 20161 Humboldt Six Rivers National Forest, Horse Mountain, Titlow Hill Road at the junction with Forest Road 6N18. Comment
  UC303006  Carex subfusca Joseph P. Tracy June, 1926 7631 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  UC562636  Carex subfusca Joseph P. Tracy 1936-6-5 14858 Humboldt 6 mi se Arcata (Fickle Hill) 579 Comment
  CAS-BOT-BC115567  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-23 4758 Humboldt Dinsmore's Comment
  CAS-BOT-BC115569  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4745 Humboldt Near Blocksburg Comment
  UC562246  Carex tumulicola Joseph P. Tracy 1932-5-1 9853 Humboldt vicinity Garberville; Redway 121 Comment
  UC1103115  Carex tumulicola Joseph P. Tracy 1927-5-8 7971 Humboldt Philipsville Northern Caost Ranges, South Fork of Eel River 121 Comment
  CAS-BOT-BC115543  Carex unilateralis Joseph Prince Tracy 1941-6-29 16935 Humboldt Large dense clump, Hettenshaw Valley 944 Comment
  UC1115821  Carex unilateralis Joseph P. Tracy 1938-7-5 16007 Humboldt old Strong's District School House, 5 miles E of town 45 Comment
  UC303072  Carex unilateralis Joseph P. Tracy 1908-7-22 2902 Humboldt near summit of ridge between Van Duzen and Mad Rivers, on Dinsmore's Ranch 1066 Comment
  UC1225792  Carpobrotus chilensis Joseph P. Tracy 1947-9-1 17924 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC281884  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie on ridge 1 mile N above Bull Creek, ca 2 miles W of Dyerville Comment
  CDA6948  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke s Prairie, on ridge 1 mile north above Bull Creek, ca. 2 miles west of Dyerville. 0 Comment
  CAS-BOT-BC249132  Castilleja affinis Alice Eastwood; John Thomas Howell 1937-6-23 4837 Humboldt 11 miles from Kneeland on road to Yager Comment
  JEPS83  Castilleja affinis subsp. affinis Lincoln Constance 1934-3-29 715 b Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  JEPS88811  Castilleja affinis subsp. litoralis T. I. and F. M. Chuang 1991-7-8 7874 Humboldt ca 2 mi sw Orick Comment
  UC1196863  Castilleja affinis subsp. litoralis Joseph P. Tracy 1912-4-21 3575 Humboldt n slope Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC32372  Castilleja ambigua subsp. humboldtiensis Linda M. Barker 1974-5-19 198 Humboldt S G St., Arcata 0 Comment
  OBI9388  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  JEPS26533  Castilleja applegatei subsp. martinii Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC30743  Castilleja applegatei subsp. pinetorum D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5648 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  RSA167242  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1951-6-26 19587 Humboldt North side of Board Camp Mountain, at extreme head of Redwood Creek. 1541 Comment
  CHSC32837  Castilleja attenuata Lora L. Anderson 1981-4-26 18 Humboldt Ca. 1.5 mi ne of Redwood creek 4.5 mi n of 299 w 18 mi ne of Arcata. 228 Comment
  HSC20881  Castilleja exserta subsp. latifolia J. W. Johnson 1961-9-6 1106 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  HSC56041  Castilleja miniata G. L. Clifton, Griswold 1979-7-31 11608 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC179945  Castilleja miniata Joseph P. Tracy 1914-9-6 4609 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  UC213503  Castilleja miniata Joseph P. Tracy 1919-9-18 5228 Humboldt Trinity Summit; Northern Coast Ranges 1828 Comment
  UC1222459  Castilleja rubicundula subsp. lithospermoides H. E. Parks and Joseph P. Tracy 1930-5-25 8723 Humboldt near Bridgeville 182 Comment
  UC535100  Castilleja rubicundula subsp. lithospermoides Parks and Tracy 1930-5-25 796 Humboldt vicinity Bridgeville; Laribee Valley Comment
  CAS-BOT-BC49317  Ceanothus cuneatus Doris K. Kildale 1926-8-15 2538 Humboldt Hoopa Mountain near Old Mill 579 Comment
  HSC70378  Ceanothus cuneatus M. A. Baker 1980-6-7 1789 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC49657  Ceanothus foliosus var. foliosus C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Ridge near Needle Roack Cross Roads, SW corner of Humboldt Co. Comment
  HSC101664  Ceanothus foliosus var. foliosus J. P. Smith, J. O. Sawyer 2011-4-23 13125 Humboldt Kings Peak Road, 2.4 miles from its junction with Shelter Cove Rd 552 Comment
  HSC36676  Ceanothus foliosus var. foliosus R. Sutherland 1975-7-7 1 .7775 Humboldt Bank of Eubanks Creek 259 Comment
  BLMAR199  Ceanothus incanus Donald Hazlett 1994-6-7 199 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  JEPS42372  Ceanothus incanus W. L. Jepson 1902-8-5 2149 Humboldt Ettersburg to Briceland Comment
  UC1070753  Ceanothus incanus A. E. Wieslander 1931-5-22 218 Humboldt Wilder Ridge Comment
  UCD112168  Ceanothus incanus B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest of Garberville. Comment
  HSC18292  Ceanothus integerrimus Francis Winter 1960-5-7 Humboldt 1.0 mi. E of Hoopa along Hoopa-Willow Creek Hwy. 152 Comment
  UC1198006  Ceanothus integerrimus Joseph P. Tracy 1937-6-26 15365 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC36673  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-5-8 7 .8575 Humboldt Mattole Valley, 3 mi W of Honeydew 107 Comment
  HSC37606  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 7 .11775 Humboldt Along county rd. 259 Comment
  HSC101658  Ceanothus parryi J. P. Smith, J. O. Sawyer 2011-4-23 13118 Humboldt Along Salmon Creek Rd., 4.6 miles from its junction with U.S. 101. 290 Comment
  HSC37085  Ceanothus parryi R. Sutherland 1975-6-4 1 .4675 Humboldt Near county rd. 2 mi NE of Briceland 168 Comment
  HSC43180  Ceanothus parryi R. Sutherland 1975-6-19 1 .19675 Humboldt Van Anken Creek at Mattole River Comment
  HSC43186  Ceanothus pumilus R. Sutherland 1976-4-17 3 .17476 Humboldt 549 Comment
  UC1198017  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17527 Humboldt Willow Creek Canyon, along Trinity Highway 609 Comment
  HSC89541  Ceanothus thyrsiflorus M. Roantree 1985-4-25 4 Humboldt E side of Trinidad Head Comment
  HSC43225  Ceanothus velutinus R. Sutherland 1976-3-17 6 .17376 Humboldt 747 Comment
  UC582507  Centaurea X moncktonii Joseph P. Tracy 1933-8-22 12973 Humboldt at Eureka Eureka 60 Comment
  CAS-BOT-BC277175  Centaurea X moncktonii Henry M. Pollard 1945-8-20 s.n. Humboldt Bluff Creek Comment
  CDA7086  Centaurea calcitrapa T. C. Fuller 1960-8-25 4975 Humboldt Pacific Lumber Company, Perrott Creek, across Eel River from Dyerville. 0 Comment
  CDA39219  Centaurea maculosa Weylan Shaw 2013-8-2 PDR# 120 P06003643 Humboldt Vicinity of Blue Lake, near the Mad River. Comment
  CDA7305  Centaurea nigra E. C. Whitney 1968-9-6 Humboldt Holmes Flat. Rutledge property. 0 Comment
  SEINET202640  Centaurium erythraea Unknown 1954-8-10 4755 Humboldt Along US Highway 101, one mile south of Garberville. 213 Comment
  JEPS11948  Centaurium muehlenbergii Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-10 4755 Humboldt 1 mi s Garberville (along U.S. Highway 101) 213 Comment
  UC176992  Centaurium muehlenbergii Joseph P. Tracy 1912-7-23 3798 Humboldt 3 mi above mouth of South Fork of Eel River (along South Fork of Eel River); Northern Coast Ranges, South Fork of Eel River 30 Comment
  CAS-BOT-BC279138  Centromadia pungens subsp. pungens Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC13533  Cephalanthera austiniae Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC161036  Cerastium arvense Joseph P. Tracy 1909-8-1 3067 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC8223  Cerastium arvense H. N. Bolander 1867-1 6520 Humboldt E. Fork Eel R. Comment
  SEINET6904629  Cerastium glomeratum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC249729  Cercis occidentalis Joseph P. Tracy 1921-9-4 5950 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC41651  Chamaecyparis lawsoniana Thomas W. Nelson 1977-10-20 3758 Humboldt Above junction of Maple Creek and Kneeland Rds. 854 Comment
  HSC99051  Chamaecyparis lawsoniana Cara Witte 2008-6-27 772 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  RSA47096  Chamaecyparis lawsoniana Doris K. Kildale 1926-8-15 2502 Humboldt Willow Creek Canyon 770 Comment
  UCSB24022  Chamaecyparis lawsoniana Howe, J. 1938-3-30 Humboldt Humboldt Co., California Comment
  HSC1196  Chamaecyparis lawsoniana Curt M. Johnson 1966-3-11 115 Humboldt Flood plain of Bull Creek at Bull Creek 152 Comment
  HSC55282  Chamaesyce serpyllifolia Overton, Butler 1979-8-2 12709 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC166043  Chamerion angustifolium subsp. circumvagum Carl B. Wolf 1927-8-22 767 Humboldt Big Lagoon Comment
  CAS-BOT-BC166046  Chamerion angustifolium subsp. circumvagum T. G. W. 1923-1-1 s.n. Humboldt Arcata Comment
  UC535749  Chamerion angustifolium subsp. circumvagum Eleanor Armstrong 1934-8-15 1146 Humboldt near road Richardson Grove 121 Comment
  HSC74745  Cheilanthes gracillima Gail Newton 1981-8-7 2426 Humboldt Near Bug Creek Butte 1244 Comment
  HSC82123  Cheilanthes gracillima Thomas W. Nelson 1979-7-11 4997 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC440177  Cheilanthes gracillima Joseph P. Tracy 1919-9-23 5289 Humboldt Trinity Summit; Northern Coast Ranges 1828 Comment
  RSA54128  Cheilanthes gracillima Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mountain 1829 Comment
  UC275479  Chenopodium ambrosioides Joseph P. Tracy 1925-11-1 7298 Humboldt Shively Northern Coast Ranges, Eel River (along river from South Fork to Scotia) 60 Comment
  UC582918  Chenopodium botrys P. A. Munz 1936-8-9 14334 Humboldt Williams Redwood Grove South Fork of Eel River Comment
  UCD98340  Chenopodium murale Joseph P. Tracy 1948-1-11 17949 Humboldt Eureka. 30 Comment
  HSC104406  Chimaphila menziesii Adam N. Canter 2011-12-1 2 Humboldt Ma-l'el Dunes Unit, Humboldt Bay National Wildlife Refuge 5 Comment
  UC32702  Chimaphila umbellata Chesnut and Drew 1888-7-8 Humboldt near Campbell's Comment
  HSC22044  Chlorogalum pomeridianum var. pomeridianum D. G. Hauger 1967-7-15 26 Humboldt Comment
  CAS-BOT-BC236918  Chloropyron maritimum subsp. palustre Joseph P. Tracy 1938-7-15 16064 Humboldt At Fields Landing, around Humboldt Bay 3 Comment
  CAS-BOT-BC36479  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old Coast Road at Thorn 304 Comment
  JEPS58688  Chrysolepis chrysophylla var. chrysophylla W. L. Jepson 1902-6 2150 Humboldt near McKee's (sw corner Humboldt County) 548 Comment
  UC519306  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1933-8-30 13036 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC1141460  Chrysosplenium glechomifolium Harold E. Parks Feb 1939 5267 Humboldt 2 mi n Trinidad (along McNeil's Creek); McNeil's Creek Comment
  UC1198852  Chrysosplenium glechomifolium J. P. Tracy 1901-6-10 1128 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC420344  Chrysosplenium glechomifolium Doris K. Kildale 1927-4-10 3079 Humboldt Prarie Creek, Russ Grove of Redwoods Comment
  HSC48313  Circaea alpina subsp. pacifica Brad Klipfel 1973-8-3 301 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC562520  Circaea alpina subsp. pacifica Joseph P. Tracy 1934-7-18 13459 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  CAS-BOT-BC284403  Cirsium arvense Alice Eastwood 1921-7-21 10659 Humboldt Carlotta Comment
  HSC101544  Cirsium arvense J. P. Smith, J. O. Sawyer 2009-8-3 12645 Humboldt Roadside 103 Comment
  UC166541  Cirsium arvense Joseph P. Tracy 1906-7-4 2536 Humboldt near Hydesville 60 Comment
  CAS-BOT-BC284406  Cirsium arvense D. E. Breedlove 1961-7-4 662 Humboldt On north bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  CAS-BOT-BC279975  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  UCD130619  Cirsium douglasii var. douglasii Collector Unknown Date Unknown s.n. Humboldt Horse Mt. Comment
  CAS-BOT-BC285530  Cirsium occidentale var. candidissimum Henry M. Pollard 1948-7-29 s.n. Humboldt Between Orleans and Woodson Mines Comment
  UC176413  Cirsium occidentale var. venustum Joseph P. Tracy 1913-6-20 4216 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in valley in Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  CAS-BOT-BC288714  Cirsium remotifolium Peter H. Raven; R. Snow 1958-7-21 13654 Humboldt 7.2 miles NW of Capetown on road to Ferndale Comment
  CAS-BOT-BC288721  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  UC1199256  Cirsium remotifolium Joseph P. Tracy 1921-7-10 5851 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  RSA418966  Cirsium vulgare Lyman Benson 1928-7-12 417 Humboldt Weott Ranger Station, Seaward N. Coast Mt. Range, South Fork Eel River Watershed. 61 Comment
  UC1122363  Clarkia amoena H. S. Yates 1936-6-23 5875 Humboldt 4 mi nne Cathays Peak; Dyerville Quadrangle Comment
  RSA108238  Clarkia amoena subsp. huntiana Harlan Lewis, M. Lewis 1947-6-12 416 Humboldt Highway 36, 0.1 mile west of Humboldt - Trinity County line Comment
  UC1198509  Clarkia concinna subsp. concinna Joseph P. Tracy 1934-7-9 13335 Humboldt ridge 5 mi s Harris 762 Comment
  CHSC52939  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd ca 1/4 mile north of the boat ramp. 3 Comment
  HSC78965  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 3 Comment
  HSC35351  Clarkia gracilis J. D. Ackerman, A. M. Montalvo 1975-6-22 485 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  POM214926  Clarkia purpurea subsp. purpurea Joseph P. Tracy 1932-6-26 10264 Humboldt North Coast Ranges: Valley of South Yager Creek 762 Comment
  POM247174  Clarkia purpurea subsp. purpurea Joseph P. Tracy 1933-7-3 12634 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  POM208995  Clarkia purpurea subsp. quadrivulnera Lincoln Constance 1934-5-23 619 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park. 366 Comment
  UC1196987  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy July, 1908 2784 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 762 Comment
  UC180230  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1914-7-5 4569 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC562526  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1936-6-10 14924 Humboldt mountain slopes w of mouth South Fork of Trinity River 457 Comment
  UC1071918  Clarkia purpurea subsp. viminea H. and M. Lewis 1947-6-14 422 Humboldt Highway 36 at bridge 4-119 South Fork of Van Duzen River Comment
  CAS-BOT-BC439096  Claytonia cordifolia Harold E. Parks; Joseph P. Tracy 1949-6-25 11680 Humboldt Trinity Summit: at Box Camp 1463 Comment
  UCD100612  Claytonia exigua Thomas W. Nelson; James L. Nelson 1980-6-10 5435 Humboldt Along the east side of Red Mountain. 1371 Comment
  UC161030  Claytonia exigua subsp. exigua Joseph P. Tracy 1910-4-24 3128 Humboldt Ocean Beach at Humboldt Bay; Northern Coast Region, Humboldt Bay Comment
  UC672996  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1937-3-17 15285 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC440092  Claytonia perfoliata subsp. perfoliata J. M. Miller 1974-6-2 361 Humboldt French Camp Ridge; on Bald Hills Rd. 18.6 mi. SE. of the Lady Bird Johnson Grove parking lot. Adjacent to Bald Hills Rd. Approximate vicinity of French Camp 822 Comment
  HSC17754  Claytonia saxosa D. E. Anderson 1967-6-10 4366 Humboldt W-facing slope on Horse Mtn. 1220 Comment
  CAS-BOT-BC443895  Claytonia sibirica Harley P. Chandler 1901-5-1 1264 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  HSC95732  Claytonia sibirica Steven Lee 2004-4-13 17 Humboldt Arcata Community Forest, along Jolly Giant Creek Rd. Comment
  UC672993  Claytonia sibirica Joseph P. Tracy 1939-4-25 16220 Humboldt Bull Creek 60 Comment
  UCR122364  Claytonia sibirica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6975 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  RSA0059513  Claytonia sibirica H. M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans. Comment
  UC1028307  Claytonia sibirica George B. Rossbach 1955-6-8 263 Humboldt Prairie Creek Redwoods State Park (Route 101) Comment
  HSC92099  Clintonia andrewsiana Brad Klipfel 1973-4-28 10 Humboldt Along Canyon Creek, SW of Korbel Comment
  SEINET12046245  Clintonia andrewsiana K. S. Erdman 1970-1 4796 Humboldt Cal-Barrow Road, 3mi E of US101 at boundary of Prairie Creek State Park (Redwood National Park) Comment
  UC1541328  Clintonia andrewsiana W. K. Parks 1932-8-24 1135 Humboldt 1 mi e of Grizzly Creek (Van Duzen River); Van Duzen River 152 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
  JEPS23541  Collinsia grandiflora Peter H. Raven with R. Snow 1958-7-20 13633 Humboldt grassy bald 2.8 mi s junction of Titlow Hill and Friday Ridge roads (near Grouse Mountain) Comment
  SEINET12268895  Collinsia grandiflora H. P. Chandler 1901-1 1251 Humboldt Redwood Belt, North Coast Ranges 457 Comment
  UC594235  Collinsia grandiflora S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3416 Humboldt Burr Valley; Burr Valley; Buck Mtn 1036 Comment
  HSC66825  Collinsia greenei Gail Newton 1980-7-15 1555 Humboldt Near Sims Mtn. 1311 Comment
  HSC32485  Collinsia linearis Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  HSC73584  Collinsia linearis Gail Newton 1980-7-14 1492 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC49699  Collinsia linearis J. O. Sawyer 1977-7-3 3021 Humboldt At tish Tang at Tang Creek on Rd. S of Gorgan Hole Comment
  HSC96271  Collinsia linearis Eric Schori, Kazuyuki Ishimaru 2005-6-15 12 Humboldt About 18 miles S of Hwy. 299 1400 Comment
  RSA127512  Collinsia linearis Milo S. Baker 1946-6-15 11486 Humboldt Near Head of Willow Cr. Canyon, Trinity Hwy. Comment
  SEINET12268979  Collinsia linearis J. P. Tracy 1950-1 18969 Humboldt Happy Camp Mountain, Trinity Summit on ridge 2 mi E of Groves Prairie 1524 Comment
  UC1011935  Collinsia linearis F. W. Pennell and J. P. Tracy 1940-7-7 26090 Humboldt w of Salyer (e slope of Grouse Mountain); Grouse Mountain 975 Comment
  UC26620  Collinsia linearis Harley P. Chandler Jun 1901 1294 Humboldt Hupa Indian Reservation near Hupa (between The Swag and Hupa); North Coast Ranges, Hupa Indian Reservation 304 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
  UCR45410  Collinsia parviflora Barry Silver 1986-4-23 535 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  JEPS26114  Collinsia parviflora Peter H. Raven with R. Snow 1958-7-20 13634 Humboldt 2.8 mi s jct of Titlow Hill and Friday Ridge rds (near Grouse Mtn) Comment
  UCR45409  Collinsia sparsiflora var. sparsiflora Barry Silver 1986-4-23 519 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  UC52553  Collomia heterophylla Mrs. M. H. Manning May 1902 Humboldt near Hupa Comment
  RSA21450  Collomia heterophylla C. B. Wolf 1937-8-13 9214 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  SEINET7963087 Image available Collomia heterophylla S. K. Harris 1942-1 1386 Humboldt Fickle Hill Road to Boynton Prairie, SN 2 E 600 Comment
  UC1197849  Collomia heterophylla Joseph P. Tracy 1917-9-2 4846 Humboldt along streamlet near top Northern Coast Ranges, Grouse Mountain 1524 Comment
  UC180508  Conium maculatum Joseph P. Tracy 1914-6-7 4496 Humboldt Region about Humboldt Bay (South Fork Elk River, at Falk's Mill); Northern Coast Region, South Fork Elk River, Falk's Mill 0 Comment
  NY643129  Convolvulus arvensis H. N. Moldenke 1932-7-4 7135 Humboldt Comment
  HSC67014  Conyza canadensis J. P. Smith 1971-10-9 4988 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  JEPS64327  Corallorhiza maculata Virginia P. Fox July, 1919 Humboldt Bald Mountain Comment
  SJSU916  Corallorhiza mertensiana J. W. Tilden 1946-6-21 1013 Humboldt Bluff Creek c. 1.5 mi above junction with Klamath River Comment
  UC1196462  Corallorhiza striata Joseph P. Tracy 1918-5-28 4935 Humboldt on slope below High Prairie (near Redwood Creek); Northern Coast Ranges 609 Comment
  RSA0084713  Cordylanthus maritimus subsp. canescens Arnold Tiehm 2002-8-14 14063 Humboldt Black Rock Desert, Casey Springs, 2.1 road miles N of Black Rock Springs. 1204 Comment
  JEPS50770  Cordylanthus maritimus subsp. palustris Rimo Bacigalupi 1967-8-13 9307 Humboldt in salicornia salt marsh w of Northwest Pacific Railroad tracks and 1/8 mi n of Arcata Redwood Company plant 4 mi n Eureka (w shore of Arcata Bay); Arcata Bay Comment
  JEPS6035  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1933-8-22 12991 Humboldt in salt marsh n of Eel River 3 Comment
  JEPS15869  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, on Humboldt Bay 6 Comment
  UC1223036  Corethrogyne filaginifolia Joseph P. Tracy 1950-6-18 18764 A Humboldt 1 mi w of town Petrolia Comment
  JEPS50097  Cornus canadensis Joseph P. Tracy 1923-6-24 6356 Humboldt meadow near High Prairie (Bald Mt.); Northern Coast Ranges, Bald Mt. 1066 Comment
  CAS-BOT-BC212021  Cornus nuttallii Duart V. Brown 1947-3-25 6 Humboldt South end of Hoopa Valley Indian Reservation, near Trinity River Comment
  HSC6410  Cornus nuttallii Francis Winter 1960-4-24 Humboldt 2 mi. N of Hwy. 299, on Redwood Creek Rd. 396 Comment
  CAS-BOT-BC212176  Cornus sericea Thomas Nelson 1977-6-3 3385 Humboldt Mad River at south end of Mad River Bridge, North Coast Range 53 Comment
  HSC49701  Cornus sericea subsp. sericea J. O. Sawyer, R. J. Cole 1977-7-3 3017 Humboldt Along Big Hill Rd. (8N01) at Mud Spring. Comment
  UC183589  Cornus sericea subsp. sericea Joseph P. Tracy 1913-6-14 4125 Humboldt opposite Buck Mt. (Dinsmore's Ranch, Valley of Van Duzen R.); Northern Coast Ranges, Valley of Van Duzen R., Dinsmore's Ra 762 Comment
  UC668295  Cornus sericea subsp. sericea Joseph P. Tracy 1935-7-25 14230 1/2 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC774995  Cornus sericea subsp. sericea Carl B. Wolf 1937-8-13 9251 Humboldt 11 mi. e. Hoopa Valley (on new rd. towards Trinity Summit); North Coast Range 1524 Comment
  UC1052446  Cornus sessilis H. E. and S. T. Parks 1941-7-5 11492 Humboldt Hors Linto Creek Comment
  UC1199211  Coronopus didymus Joseph P. Tracy 1901-7-31 1234 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  UC1197931  Corylus californica Mary Harriet Tracy 1946-5-30 Humboldt 5 mi E of Carlotta (Riverside Park) 30 Comment
  UC54930  Corylus californica P. E. Goddard 1901-7-6 21 Humboldt Hupa Comment
  CAS-BOT-BC180304  Corylus cornuta subsp. californica P. C. Everett; E. K. Balls 1959-10-24 23956 Humboldt 4.7 mi S from Bluff Creek, Hwy. 96 from Orleans to Weitchpec 121 Comment
  SBBG58030  Corylus cornuta subsp. californica R. Hartwell 1938-8-4 Humboldt Bull Crk Flat, hillside opposite the store Comment
  RSA20962  Corylus cornuta var. californica C. B. Wolf 1937-9-13 9337 Humboldt North Coast Range, summit of Grouse Mt. 1645 Comment
  SEINET3817860  Cotula coronopifolia J. P. Tracy 1903-8-9 1948 Humboldt Immediate vicinity of Eureka Comment
  SEINET3817862  Cotula coronopifolia Steve R. Johnson 1965-3-12 1 Humboldt 1 mile north of luffenholtz beach Comment
  CAS-BOT-BC291344  Cotula coronopifolia Doris K. Kildale 1925-9-26 1366 Humboldt Mouth of Mad River Comment
  CDA7475  Cotula coronopifolia L. Tauzer 2002-5-3 43 Humboldt Arcata Marsh, Arcata. Comment
  JEPS37501  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  HSC46020  Crepis capillaris Catherine Chin 1978-8-5 93 Humboldt Arcata, along 16th St., 100 yds. E of Union St. Comment
  HSC74027  Crepis pleurocarpa Gail Newton 1980-7-11 1313 Humboldt Near Red Mtn. 1341 Comment
  UC485361  Crepis pleurocarpa P. E. Goddard 1906-6 660 Humboldt Lasseck Pk. Comment
  HSC7973  Croton setiger H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC41196  Cryptantha affinis Thomas W. Nelson 1977-7-4 3611 Humboldt Along road N of Alder Springs. 1524 Comment
  HSC57183  Cryptantha affinis Griswold, Butler 1979-7-10 6312 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC39787  Cryptantha leiocarpa Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  HSC3576  Cryptantha leiocarpa J. W. Johnson 1962-5-27 1381 Humboldt Arcata; at N end near the foredunes, Christensen Farm, Samoa Peninsula Comment
  HSC63975  Cryptantha torreyana J. P. Smith, Steve Selva 1970-6-14 3844 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC525596  Cryptantha torreyana Joseph P. Tracy 1929-7-4 8622 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC525612  Cryptantha torreyana Joseph P. Tracy 1933-8-30 13024 Humboldt Grouse Mountain North Coast Ranges 1524 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
  RSA640954  Cuscuta californica K. Thorne, P. C. Everett 1965-8-9 35305 Humboldt Big Lagoon 3 Comment
  HSC98017  Cuscuta californica var. californica Cara Witte 2007-7-5 422 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  HSC104294  Cuscuta occidentalis Samantha E. Andres 2016-5-30 15 Humboldt Dry Lagoon Coastal Trail 5 Comment
  HSC44543  Cuscuta occidentalis Brad Klipfel 1973-7-15 162 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC89900  Cuscuta pacifica var. pacifica Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC176042  Cynoglossum grande Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3615 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC1103241  Cynosurus cristatus J. P. Tracy 1896-6-22 27 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC190376  Cynosurus echinatus David D. Keck 1948-7-1 5977 Humboldt Northeast end of Big Lagood [Lagoon]. Comment
  CAS-BOT-BC190425  Cynosurus echinatus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC1145094  Cynosurus echinatus Joseph P. Tracy 1950-6-23 18865 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); Dobbyn Creek 213 Comment
  UCD141076  Cyperus eragrostis Gordon Leppig 1998-6-26 859 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. 18 Comment
  BLMAR416  Cyperus eragrostis Jennifer Wheeler 2007-8-29 416 Humboldt South Spit, East side of road near bay 9 Comment
  UC1103636  Cyperus squarrosus Joseph P. Tracy 1921-10-9 5969 Humboldt Mad R. at Blue Lake; Northern Coast Ranges, Mad R. 30 Comment
  UC302157  Cypripedium californicum Joseph P. Tracy 1926-6-27 7669 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  HSC77148  Cypripedium montanum R. York 1978-5-20 172 Humboldt Along Bluff Creek Trail 610 Comment
  UC1196446  Cypripedium montanum Joseph P. Tracy 1924-4-27 6647 Humboldt brushy hillside at Berry's; Northern Coast Ranges, Redwood Creek 365 Comment
  HSC97609  Cystopteris fragilis Cara Witte 2007-6-4 203 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC98728  Cystopteris fragilis Cara Witte 2007-7-20 563 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  HSC97462  Cystopteris fragilis Cara Witte 2007-5-23 103 Humboldt Near Grouse Mountain. Along 4N32. Approximately 0.5 miles south of intersection with 5N04 and 4N32E. 1398 Comment
  UCD136399  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt Bull Creek Region, South Fork Eel River. Comment
  SDSU10150  Cytisus scoparius Leslie Hickson 1990-4-15 15 IV90C Humboldt Oak Street across the road from the Freshwater park entrance. Eureka. Comment
  HSC73805  Dactylis glomerata M. A. Baker 1980-6-16 1937 Humboldt Near Monks Camp. 1097 Comment
  HSC9539  Dactylis glomerata E. W. Styskel 1963-5-16 25 Humboldt 3.0 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  BLMAR28  Danthonia californica Brad Barr June, 1982 28 Humboldt King range, near shearing shed at couskie E. facing slope Comment
  CAS-BOT-BC189733  Danthonia californica Henry M. Pollard 1948-7-29 s.n. Humboldt Woodson Mine near Orleans. Comment
  CAS-BOT-BC189736  Danthonia californica Joseph P. Tracy 1930-6-21 8772 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  UC37946  Danthonia californica Harley P. Chandler May, 1901 1239 Humboldt North Coast Ranges; Redwood Belt 91 Comment
  UC1103260  Danthonia californica var. americana Joseph P. Tracy 1949-8-11 18475 Humboldt 2-6 mi s Grouse Mt.; Kinsey Ridge 1280 Comment
  UCD60503  Danthonia californica var. americana R. Tofsrud 1947-6-27 s.n. Humboldt About halfway between Yager and Kneeland on county road. Comment
  CAS-BOT-BC420365  Darmera peltata Duart V. Brown 1947-3-24 5 Humboldt 3 miles N of Willow Creek on W bank of Trinity River Comment
  JEPS12210  Datura stramonium W. L. Jepson 1932-7-29 16436 Humboldt Dyerville 88 Comment
  UC642295  Daucus carota Joseph P. Tracy 1932-9-16 10796 Humboldt near mouth Mad River 30 Comment
  CHSC79694  Delairea odorata Gordon Leppig 2000-2-15 1284 Humboldt McKinleyville. School Road 1/2 mile west of Central Ave. UTM zone 10, 4532N, 406E. 30 Comment
  UC1196326  Delphinium Joseph P. Tracy 1946-6-15 17564 Humboldt foothills of Horse Mountain 1066 Comment
  BLMAR630  Delphinium decorum Jennifer Wheeler 2011-6-15 630 Humboldt Lacks Creek, Pine Ridge Road Comment
  UC160929  Delphinium decorum subsp. tracyi Harley P. Chandler June 1901 1289 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  UC427876  Delphinium decorum subsp. tracyi H. E. Parks and J. P. Tracy 1930-5-25 789 Humboldt Laribee Valley 914 Comment
  UC467718  Delphinium decorum subsp. tracyi Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5802 B Humboldt Trinity Summit Comment
  HSC96221  Delphinium decorum subsp. tracyi Eric Schori, Kazuyuki Ishimaru 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  RSA259575  Delphinium decorum subsp. tracyi Thomas W. Nelson 1974-5-7 1236 Humboldt Kneeland Road, 1/2 mile N of the Kneeland School Comment
  RSA79370  Delphinium decorum subsp. tracyi E. K. Balls, Lee W. Lenz 1952-5-12 17196 Humboldt 11.2 miles E along Hwy 36 from Bridgeville to Cobbs Comment
  HSC56322  Delphinium glaucum Overton, Butler 1979-8-2 12662 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC36195  Delphinium menziesii John Rehling 1975-5-15 83 Humboldt 8 mi. W of Ferndale on the Mattole Rd. Comment
  HSC25012  Delphinium nudicaule Eugene Andreuccetti 1964-5-2 38 Humboldt 50 yds. from Ruby Creek on Hwy. 299 Comment
  POM126514  Delphinium nudicaule Joseph P. Tracy 1922-4-30 6012 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  CHSC1447  Delphinium trolliifolium A. Small 1954-6-3 Humboldt Near Ferndale. Comment
  JEPS5768  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  RSA32276  Delphinium trolliifolium H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale Comment
  HSC9584  Deschampsia cespitosa C. B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  UCD61369  Deschampsia cespitosa A. H. Murphy 1951-5-29 48 Humboldt About 1 mile northeast of Ocean House, along County Road, Cape Mendocino Area. Comment
  SEINET10515745  Deschampsia cespitosa Mark Stopher 1980-6-4 Stopher 95 Humboldt Very common along Elk River near Hwy 101 bridge. Eureka Quadrangle 7.5', T4N R1W S4 SW1/4. 1 Comment
  CAS-BOT-BC194293  Deschampsia cespitosa subsp. cespitosa Edward Lee 1934-8-17 1153 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  CAS-BOT-BC194296  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1904-7-31 2129 Humboldt Eureka 60 Comment
  LA10879  Deschampsia danthonioides Joseph P. Tracy; 1935-6-23 13969 Humboldt 1066 Comment
  CAS-BOT-BC201773  Deschampsia elongata Doris K. Kildale 1927-7-22 3825 Humboldt Lassecks Peaks near Corral Camp 1661 Comment
  CAS-BOT-BC201776  Deschampsia elongata Doris K. Kildale 1928-6-24 7079 Humboldt Redwood Creek at Berry's Comment
  HSC102212  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1128 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC9612  Deschampsia elongata E. W. Styskel 1964-5-10 86 Humboldt 1.5 mi. SE of Redcrest along Hwy. 101 Comment
  RSA10093  Deschampsia elongata Joseph P. Tracy 1933-7-25 12872 Humboldt Goose Mountain; along streamlet 1524 Comment
Read comments
Jul 26 2012
  UC34060  Deschampsia elongata J. P. Tracy 1901-6-10 1130 Humboldt immediate vicinity of Eureka 0 Comment
  UC526671  Deschampsia elongata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9092 Humboldt S. Fork Mt. near McKay Camp Northern Coast Ranges, S. Fork Mt. 1676 Comment
  CHSC7026  Dicentra formosa K. R. Stern 1964-6-16 2113 Humboldt .7 mi. n of Big Lagoon bridge on w side of US Hwy. 101. Comment
  HSC44257  Dicentra formosa J. Walker 1977-4-23 8 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC26869  Dicentra formosa Clifton Raymond Chesbrough 1973-6-19 93 Humboldt 1/2 mi. N of College Cove Comment
  CAS-BOT-BC402404  Dicentra formosa subsp. formosa Doris Kildale Gillespie 1931-6-7 10657 Humboldt South Fork Mt., Blake Lookout Comment
  UC666885  Dichelostemma capitatum Joseph P. Tracy 1927-5-8 7966 Humboldt Phillipsville 121 Comment
  UC1222683  Dichelostemma capitatum Joseph P. Tracy 1951-5-20 19404 Humboldt toward Ashfield Butte; Kneeland Prairie Comment
  UCR32171  Dichelostemma ida-maia David J. Keil 1983-7-2 17339 Humboldt 2.8 mi south of SR 299 along Titlow Hill Rd., SW of Willow Creek 1098 Comment
  CAS-BOT-BC502223  Dichelostemma ida-maia anonymous no date on label s.n. Humboldt Ferndale Comment
  RSA167431  Dichelostemma ida-maia Joseph P. Tracy, A. H. Murphy, Davis Agriculture College 1951-6-26 19568 Humboldt Vicinity of Twin Lakes and Snow Camp. Comment
  UC1198174  Dichelostemma multiflorum Joseph P. Tracy 1939-4-29 16240 Humboldt mouth of Slate Creek Klamath River 121 Comment
  JEPS15182  Digitalis purpurea G. T. Nordstrom Jul 1937 1442 Humboldt 1.6 mi wsw Orick; Orick Quad. 45 Comment
  CHSC31322  Distichlis spicata Mark Stopher 1980-6-4 83 Humboldt Along Elk River near Rte 101 bridge. 1 Comment
  HSC26352  Distichlis spicata T. O. Osborne 1970-4-5 68 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  HSC37496  Distichlis spicata J. D. Ackerman 1975-8-2 614 Humboldt Hwy. 101 between Eureka and Arcata, along Humboldt Bay across from Murray Field. Comment
  UC1198620  Dodecatheon hendersonii Joseph P. Tracy 1922-5-14 6046 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1222563  Dodecatheon hendersonii Joseph P. Tracy 1950-5-7 18644 Humboldt on the road to South Yager Valley about 5 mi n Bridgeville; n of Bridgeville 198 Comment
  UC562465  Dodecatheon hendersonii Joseph P. Tracy 1924-3-9 6612 Humboldt Kneeland Prairie 762 Comment
  RSA183606  Dodecatheon hendersonii G. Bos 1965-5-15 278 Humboldt Berry Summit near U.S. 299. Growing in moss at base of Quercus. 793 Comment
  HSC98690  Dodecatheon hendersonii subsp. hendersonii Cara Witte 2008-6-9 702 Humboldt Off National Forest 1, near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of the road. 1506 Comment
  RSA32864  Downingia yina A. A. Heller 1923-7-8 13771 Humboldt Near Fortuna Comment
  CAS-BOT-BC41359  Draba verna Doris K. Kildale 1929-4-25 7437 Humboldt Kneeland Prairie. 853 Comment
  UC183604  Drosera rotundifolia Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges 914 Comment
  CAS-BOT-BC159609  Drymocallis glandulosa var. glandulosa M. S. Jussel 1931-5-2 139 Humboldt 6 miles from Garberville Comment
  HSC34912  Drymocallis glandulosa var. glandulosa Thomas W. Nelson 1975-5-24 53 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1198689  Drymocallis glandulosa var. wrangelliana Joseph P. Tracy 1933-5-14 12172 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC44564  Drymocallis hansenii Brad Klipfel 1973-7-15 184 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC32284  Drymocallis rhomboidea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5618 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC1033  Dryopteris arguta W. R. Supernaugh, Jr. 1964-12-15 16 Humboldt 400 yards S of Trinidad Harbor, off old logging rd. above beach 12 Comment
  JEPS337  Dryopteris arguta Wm. K. D. Reynolds August, 1933 Humboldt Riceland Comment
  UC197923  Dryopteris expansa Joseph P. Tracy 1914-6-7 4491 Humboldt N Fork Eel River Alton; Northern Coast Region 30 Comment
  JEPS35138  Dryopteris expansa Milo S. Baker 1923-7-16 20 Humboldt 4 mi se Eureka Comment
  RSA693562  Dryopteris expansa Anstruther Davidson 1923-8-11 s.n. Humboldt Redwood Forest Comment
  JEPS49929  Dudleya farinosa W. L. Jepson 1902-8-4 2144 Humboldt Cape Mendocino 1 Comment
  UCD60951  Echinochloa crus-pavonis Collector unknown 1926-7-1 Humboldt Annie Wilson Ranch, Alderpoint. Comment
  HSC44325  Eleocharis acicularis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3592 Humboldt Margin of drying pond above Alder Springs 1585 Comment
  JEPS19336  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie; dried pond bed 60 Comment
  RSA12430  Eleocharis acicularis var. acicularis Carl B. Wolf 1934-7-2 5864 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  UC1152070  Eleocharis bella Joseph P. Tracy 1949-6-25 18355 Humboldt 1463 Comment
  JEPS64131  Eleocharis macrostachya W. L. Jepson 1921-8-7 9328 Humboldt Stone Lagoon Humboldt Coast Comment
  CAS-BOT-BC112837  Eleocharis macrostachya Doris K. Kildale 1928-7-29 5934 Humboldt Kanman Pond, Bear River Ridge. Comment
  CAS-BOT-BC112839  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  SEINET3910832  Eleocharis macrostachya Thomas Nelson 1977-9-22 3749 Humboldt Eureka Quad. Along east side of State Route 101 just north of the Eureka Airport.; 0 Comment
  CAS-BOT-BC113112  Eleocharis obtusa Henry M. Pollard 1946-8-16 s.n. Humboldt Along river near Orleans Comment
  CAS-BOT-BC227347  Elymus elymoides Joseph P. Tracy 1930-7-16 8955 Humboldt South Fork Mountain; along summit near Blake Lookout 1706 Comment
  BLMAR19  Elymus glaucus Brad Barr June, 1982 19 Humboldt King range, North facing slope of Spanish ridge Comment
  UC1103200  Elymus glaucus Joseph P. Tracy 1950-8-20 19327 1/2 Humboldt near Slate Creek; Klamath River 121 Comment
  HSC63822  Elymus intermedius Dennis McKiver 1981-1-12 Humboldt 300 yds. SW of the Mad River Bridge on Hatchery Rd. in Blue Lake. Comment
  HSC63872  Elymus multisetus M. A. Baker 1979-6-26 909 Humboldt S facing ridge Comment
Read comments
Feb 15 2013
  RSA256587  Empetrum eamesii subsp. hermaphroditum Gary S. Lester 1975-4-6 604 Humboldt Trinidad State Beach: Megwil Point, on Elk Head, N of Trinidad. 15 Comment
  SBBG52991  Epilobium J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  UC314613  Epilobium brachycarpum Joseph P. Tracy 1925-9-20 7273 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  SBBG60143  Epilobium canum subsp. latifolium L. Rowntree 1931-7-21 Humboldt Mattole River Comment
  HSC54703  Epilobium ciliatum Overton, Butler 1979-7-26 10026 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC74500  Epilobium ciliatum subsp. ciliatum Gail Newton 1980-8-10 2047 Humboldt Near Blake Mtn. 1707 Comment
  UC1197003  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1920-8-15 5388 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  HSC103281  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-7 Humboldt Six Rivers National Forest, Lower Trinity District, Grouse Mountain, Forest Service Road 5N04. 1576 Comment
  HSC16358  Epilobium ciliatum subsp. watsonii D. E. Anderson 1961-9-2 1764 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC16348  Epilobium ciliatum subsp. watsonii Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  HSC49636  Epilobium minutum J. P. Smith, J. O. Sawyer 1973-5-12 6700 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC49630  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3401 Humboldt Mckeown Ranch N of Dinsmore, Mad River 610 Comment
  RSA249432  Epilobium minutum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5598 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  CHSC12021  Epilobium septentrionale R. N. Bowman 1971-9-12 52 Humboldt Located ca. 1.7 mi se of Myers Flat off of Hwy 101. Ca. 4 ft. above s fork Eel River on e bank. 1066 Comment
  UC902175  Epilobium torreyi Joseph P. Tracy 1942-7-18 17280 Humboldt along ditch in field Garberville 152 Comment
  UC519322  Equisetum arvense Joseph P. Tracy 1933-6-7 12518 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  UC1239789  Equisetum hyemale subsp. affine Joseph P. Tracy 1926-9-6 7795 Humboldt near S. Fork Trinity River Valley; Northern Coast Ranges 182 Comment
  UC503072  Equisetum hyemale subsp. affine Joseph P. Tracy 1928-6-17 8456 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges 152 Comment
  CAS-BOT-BC57230  Equisetum laevigatum H. E. Parks; Joseph P. Tracy 1927-4-24 7925 Humboldt Eureka 6 Comment
  UCD64457  Eragrostis pectinacea Collector Unknown 1946-11 Humboldt Orleans. Comment
  CAS-BOT-BC284096  Eragrostis pectinacea var. pectinacea Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  RSA638987  Erechtites glomeratus R. F. Thorne, Percy C. Everett 1965-8-8 35239 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  RSA89771  Erechtites minimus P. A. Munz 1954-7-25 19871 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  CAS-BOT-BC174186  Eremogone congesta var. congesta Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  CAS-BOT-BC174278  Eremogone congesta var. suffrutescens Doris K. Kildale 1925-8-17 1243 Humboldt Waterdog Lake - Trinity Summit 1828 Comment
  HSC74435  Erigeron aliceae Gail Newton 1980-8-10 2065 Humboldt Near Blake Mountain 1707 Comment
  UC87757  Erigeron foliosus var. mendocinus J. W. Blankinship 1893-7-19 Humboldt Van Duzen River; banks Comment
  UCR51797  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12358 Humboldt Van Duzen Redwood State Park 245 Comment
  UC1557909  Erigeron glaucus J. Semple and S. Heard 1986-8-17 8501 Humboldt off US 101 just s Little River State Beach; Clam Beach County Park Comment
  RSA0065545  Eriogonum baileyi Marion P. Harthill 1971-9-8 571 Humboldt Walker River, Toiyabe National Forest, Lower Campgrounds. Comment
  CAS-BOT-BC259265  Eriogonum latifolium Doris K. Kildale 1927-7-1 3621 Humboldt Alton Hill 30 Comment
  HSC46971  Eriogonum latifolium J. P. Smith, Thomas W. Nelson 1977-6-30 9209 Humboldt Samoa Peninsula just E of the drag strip. Comment
  SD38696  Eriogonum latifolium Charlotte M. Hoak 1931-7-14 2102 Humboldt Sand dunes above Eureka Comment
  UCR32155  Eriogonum nudum var. nudum David J. Keil 1983-7-1 17272 Humboldt North Coast Range, Bull Creek Flats [Mattole] Road, c. 13 mi. west of junction with US Hwy 101 Comment
  UC370871  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1918-7-6 5044 Humboldt near Humboldt-Mendocino County Line (South Fork of Eel River); Northern Coast Ranges, South Fork of Eel River 152 Comment
  HSC98098  Eriogonum umbellatum var. goodmanii Cara Witte 2007-6-20 307 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  RSA46683  Eriogonum umbellatum var. goodmanii Doris K. Kildale 1937-7-18 15131 Humboldt Horse Mt. Comment
  HSC43084  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-8-3 300 Humboldt N Trinity Mtn. 1860 Comment
  HSC55169  Eriogonum umbellatum var. stellatum Gilbert Muth 1979-8-1 12163 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  BLMAR181  Eriophyllum lanatum var. achilleoides Donald Hazlett 1994-6-7 181 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1199141  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1934-7-6 13664 Humboldt Iaqua; North Coast Ranges, Iaqua 609 Comment
  JEPS17991  Eriophyllum lanatum var. achilleoides George B. Rossbach 1955-6-10 533 Humboldt 2 mi no of Stephens Redwood Grove (Route 101 along s fork of Eel River, in redwood forest area); South fork of Eel River Comment
  UC165859  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1911-6-29 3268 Humboldt near Hydesville (gravel bar of river); Van Duzen River 60 Comment
  UC176857  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1912-7-21 3768 Humboldt Alton Northern Coast Region of California Comment
  UC165849  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 Humboldt w side of river near Willow Creek; North Coast Ranges, Trinity River 304 Comment
  CAS-BOT-BC301687  Eriophyllum lanatum var. lanceolatum Harley P. Chandler 1901-6-1 1403 Humboldt North Coast Ranges. Klamath River 243 Comment
  CAS-BOT-BC301689  Eriophyllum lanatum var. lanceolatum Lincoln Constance; Reed C. Rollins 1942-5-12 2890 Humboldt Klamath-Siskiyou Region. Klamath River 12 miles north of Weitchpec 121 Comment
  UC582674  Eriophyllum staechadifolium Joseph P. Tracy 1934-7-2 13291 Humboldt bluffs along ocean Trinidad Comment
  HSC47494  Erodium cicutarium Sheila Logan 1978-4-9 18 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC89896  Erodium cicutarium Leonel Arguello 1989-6-2 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata, end of Fernstrom-Root trail Comment
  HSC36913  Erysimum capitatum var. capitatum John Rehling, Robert M. Specht 1976-2-20 111 Humboldt Along Kneeland Rd., halfway to Bridgeville Comment
  HSC45085  Erysimum capitatum var. capitatum R. Sutherland 1978-4-23 16 .23478 Humboldt Kinsey (Fraser) Ridge near head 732 Comment
  HSC6760  Erysimum capitatum var. capitatum Francis Winter 1960-4-24 Humboldt 2 mi. SE of Burnt Ranch, Hoopa Indian Reservation 381 Comment
  HSC74234  Erysimum capitatum var. capitatum M. A. Baker 1980-7-11 2789 Humboldt Near Red Mtn. 1341 Comment
  SEINET200701 Image available Erythranthe cardinalis Joseph P. Tracy 1911-1 3480 Humboldt Tributary of Trinity River; along Willow Creek; near its mouth. 244 Comment
  HSC44396  Erythronium californicum Brad Klipfel 1975-5-24 629 Humboldt Horse Mtn. Comment
  UC666961  Erythronium grandiflorum Joseph P. Tracy 1933-7-11 12708 Humboldt Grouse Mountain 1524 Comment
  HSC35276  Erythronium grandiflorum subsp. grandiflorum J. D. Ackerman 1975-6-18 474 Humboldt SW slope of trinity Mtn., Grogan Hole, 6.4 mi. E of junction of Rd. 10N02 and 8N01, 20.4 mi. E of Hoopa and Hwy. 96 1677 Comment
  HSC15499  Erythronium oregonum subsp. leucandrum D. E. Anderson 1965-4-24 3548 Humboldt 3 mi. E of Redwood Creek bridge along Hwy. 299, old routing Comment
  JEPS61877  Erythronium revolutum Ethel Tracy 1907-1 Humboldt Kneeland Prairie Comment
  UC146200  Erythronium revolutum Joseph P. Tracy 1908-6-9 2661 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC104354  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-4-30 16 Humboldt Larabee Creek area, east of Redcrest 805 Comment
  HSC79431  Eschscholzia californica Kenneth Clark 1980-3-22 525 Humboldt On access trail above Dead Man's Gulch, Shelter Cove 122 Comment
  HSC57686  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-7-25 10904 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC5706  Euchiton gymnocephalus G. N. Bos 1965-5-15 254 Humboldt 8 mi. W of Berry Summit, along Hwy. 299 762 Comment
  HSC103827  Euchiton gymnocephalus Spadoni 1999-7-1 Humboldt Eureka, residential garden weed Comment
  CAS-BOT-BC206803  Euonymus occidentalis Doris K. Kildale 1926-7-22 2417 Humboldt N ridge near Metropolitan, near Canyon Park, Eel River Valley Comment
  CAS-BOT-BC206915  Euonymus occidentalis Milo S. Baker 1923-7-25 113 Humboldt Salmon Cr. near Carlotta Comment
  BLMAR291  Euonymus occidentalis var. occidentalis Jennifer Anthony-Wheeler 2001-6-19 291 Humboldt Headwaters Forest Reserve, growing shaded streambank by ' babbits ridge ' 335 Comment
  SEINET10971171  Eupatorium occidentale Mary Susan Taylor 1980-6-11 Taylor 2844 Humboldt Gray Falls Campground, Six Rivers Natl Forest, on W side of Rd 6N56 to foot bridge, on N side of Hwy 299, ca. 2 mi NW of Burnt Ranch. 274 Comment
  SEINET10493552  Euphorbia Mary Susan Taylor 1990-8-22 Taylor 6080 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC1198984  Euphorbia crenulata Joseph P. Tracy 1926-4-11 7409 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  HSC48607  Euphorbia helioscopia Mark Flippo 1978-4-8 7 Humboldt In McKinleyville, along Bella Vista Rd. Comment
  HSC8018  Euphorbia peplus W. Schocker 1937-3-18 Humboldt Mad River Comment
  HSC59575  Euphorbia peplus Rick Lundquist 1979-4-24 37 Humboldt Arcata, lower Church parking lot at E end of 16th St. 46 Comment
  UC902141  Euphorbia spathulata Joseph P. Tracy 1948-6-20 18068 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC774610  Eurybia radulina Carl B. Wolf 1937-9-8 9301 Humboldt 11 mi w of, Bull Creek -Petrolia Road Redwood Highway; North Coast Range 304 Comment
  CAS-BOT-BC310679  Euthamia occidentalis Joseph P. Tracy 1927-10-8 8389 Humboldt Arcata Bottom 15 Comment
  CAS-BOT-BC310683  Euthamia occidentalis S. K. Harris; Charlotte Wilder 1938-9-7 s.n. Humboldt Bars of the Van Dusen River, above Blue Slide Comment
  RSA44303  Euthamia occidentalis H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  HSC17559  Fallopia sachalinensis H. E. Parks, S. T. Parks Jul 1952 24448 Humboldt South of the Elk River Bridge on Hwy 10 Comment
  HSC65452  Festuca californica J. P. Smith, J. O. Sawyer 1973-5-12 6697 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  CAS-BOT-BC278304  Festuca californica subsp. californica L. R. Abrams 1918-6-15 7126 Humboldt Brannan Mt near Willow Creek 1371 Comment
  UCD65871  Festuca californica subsp. californica R. Tofsrud 1948-9-1 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  HSC98829  Festuca californica var. californica Cara Witte 2007-5-21 70 Humboldt White Oak Opening. 1257 Comment
  UC525635  Festuca idahoensis Joseph P. Tracy 1930-7-10 8867 Humboldt Brannan Mountain North Coast Ranges 1219 Comment
  UC70909  Festuca idahoensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5877 Humboldt Martins Ferry Comment
  HSC31117  Festuca occidentalis J. O. Sawyer 1970-6-14 2264 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC71594  Festuca occidentalis M. A. Baker 1980-6-26 2404 Humboldt Near Sims Creek 610 Comment
  HSC73746  Festuca occidentalis M. A. Baker 1980-7-15 2950 Humboldt Near Whiting Ridge. 1341 Comment
  UCD66125  Festuca occidentalis P. B. Kennedy 1923-8-23 Humboldt Near Orleans, near top of grade - Red Bluff to Arcata. Comment
  CAS-BOT-BC278962  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N.E. of Capetown 152 Comment
  HSC83339  Festuca rubra Andrea Pickart 1987-6-26 Humboldt Arcata, Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata. Comment
  RSA10075  Festuca rubra Joseph P. Tracy 1927-7-4 8238 Humboldt Lone-Star Creek (in the Dagna district). 610 Comment
  SACT001197  Festuca rubra Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt marshes. Comment
  UC176573  Festuca rubra Joseph P. Tracy 1912-7-7 3740 Humboldt Eureka North Coast Region 0 Comment
  CAS-BOT-BC282520  Festuca subbiflora Joseph P. Tracy 1901-6-10 1134 Humboldt Eureka 60 Comment
  CAS-BOT-BC282515  Festuca subbiflora W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  UC1056065  Festuca subuliflora J. I. Mallory 1955-2-22 115 Humboldt 1 mi n Luke Prairie Quad. (Quad 29-B-2); Peavine Ridge 701 Comment
  RSA183617  Fragaria californica D. E. Anderson 1965-5-1 3558 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek. Comment
  CHSC23878  Fragaria chiloensis A. R. Morrison 1974-4-27 Humboldt Throughout understory along immediate coastal cliffs ca. 2 mi. n of Trinidad. Comment
  HSC46955  Fragaria chiloensis J. P. Smith, Thomas W. Nelson 1977-6-30 9205 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  UC1198726  Fragaria chiloensis Joseph P. Tracy 1901-5-12 1083 Humboldt Eureka, immediate vicinity of 0 Comment
  HSC32950  Fragaria vesca Thomas W. Nelson, James Nelson 1973-5-28 959 Humboldt McKeown Ranch N of Dinsmore Comment
  UCD113269  Fragaria virginiana Gunter Staudt; H. Ahmadi 1989-5-15 313 Humboldt North of Trinidad along Highway, near Seawood Drive exit. Comment
  BLMAR243  Frangula californica subsp. californica Jennifer Anthony-Wheeler 1997-7-24 243 Humboldt Lacks Creek, growing beside rd with ceanothus & rubus 1219 Comment
  CAS-BOT-BC52731  Frangula californica subsp. californica Doris K. Kildale 1927-6-25 3568 Humboldt Shelter Cove Comment
  CAS-BOT-BC53400  Frangula californica subsp. occidentalis Joseph P. Tracy 1941-9-4 17012 Humboldt Willow Creek Canyon, along Trinity Highway 609 Comment
  CAS-BOT-BC59994  Frangula purshiana Joseph P. Tracy 1948-8-15 18152 Humboldt Trinity Summit. On ridge 2 mi. e. of Grove's Prairie. 1524 Comment
  CAS-BOT-BC59999  Frangula purshiana C. B. Wolf 1931-8-30 2373 Humboldt E. side of Eureka on P. St., one block n. of Henderson St. 30 Comment
  HSC12227  Frangula purshiana Gary J. Stebbins 1970-4-19 71 Humboldt Along rd. to Fieldbrook 2.7 mi N of Hwy. 299 Comment
  HSC95924  Frangula purshiana subsp. purshiana Will Ferrand 2001-6-17 18 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  HSC79480  Fritillaria affinis Kenneth Clark 1980-3-27 561 Humboldt Upper alluvial terraces of S fork Dead Man's Gulch 76 Comment
  UC1225860  Fritillaria affinis Joseph P. Tracy 1947-4-27 17674 Humboldt Table Bluff, on Tompkins Hill Road Table Bluff; , Tompkins Hill Road 152 Comment
  HSC22537  Galium aparine D. E. Anderson, J. P. Smith 1970-5-10 5059 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  RSA168953  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley. On NW slope of Buck Mtn. 1067 Comment
  UC602509  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UC1196089  Galium bolanderi Joseph P. Tracy 1933-7-9 12642 Humboldt Willow Creek Trinity River Valley 152 Comment
  LA90049  Galium californicum subsp. californicum Lauramay T. Dempster; Ledyard Stebbins 1963-7-9 3849 Humboldt E of Bridgeville 4.4 mi on Highway 36 to Dinsmore 457 Comment
  JEPS6517  Galium mexicanum var. asperulum Joseph P. Tracy 1921-9-4 5953 Humboldt near Willow Creek (moist banks along river mouth); Northern Coast Ranges, Trinity River Valley, South Fork Trin 152 Comment
  HSC38523  Galium parisiense D. E. Anderson, J. P. Smith 1971-6-18 - 1075 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  HSC71598  Galium porrigens M. A. Baker 1980-6-26 2410 Humboldt Near Sims Creek 610 Comment
  HSC99319  Galium porrigens var. porrigens C. B. Wolf 1927-8-30 1225 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  HSC57320  Galium triflorum Overton, Butler 1979-7-23 9519 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC28245  Galium triflorum Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC169075  Galium triflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5470 Humboldt near Elk Prairie (Fruitland); North Coast Ranges Comment
  UC562413  Gamochaeta coarctata Joseph P. Tracy 1936-8-1 15057 Humboldt 6 mi s Blue Lake (hillside pasture in logged area); Canyon Creek 365 Comment
  JEPS20474  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC1199343  Gamochaeta ustulata Joseph P. Tracy 1935-5-25 13835 Humboldt Fort Seward 106 Comment
  UC127734  Gamochaeta ustulata Harley P. Chandler May 1901 1139 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  UCD132373  Gamochaeta ustulata Linda M. Barker 1976-7-5 1539 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC41286  Garrya buxifolia Brad Klipfel 1974-7-27 480 Humboldt Horse Mtn. near Indian Butte Comment
  CAS-BOT-BC188538  Garrya elliptica Doris K. Kildale 1926-8-25 2550 Humboldt Mouth of Luffenholtz Creek near Trinidad Comment
  CAS-BOT-BC188540  Garrya elliptica Alice Eastwood 1907-4-21 18 Humboldt Port Trinidad Comment
  CAS-BOT-BC188550  Garrya elliptica J. P. Tracy 1911-10-22 3549 Humboldt Immediate vicinity of Eureka 152 Comment
  UC634770  Garrya elliptica H. L. Mason 1932-7-21 7102 Humboldt Big Lagoon Comment
  UC906741  Garrya elliptica Joseph P. Tracy 1943-7-18 17441 Humboldt bank of Big Lagoon 6 Comment
  UCD121106  Garrya elliptica Gordon Leppig 1998-6-26 853 Humboldt McKinleyville, Rt. 101 @ Mad River Overlook. 24 Comment
  UC1196892  Garrya fremontii Joseph P. Tracy 1939-8-16 16408 Humboldt Horse Mountain 1432 Comment
  UC630638  Garrya fremontii Joseph P. Tracy 1939-9-10 16499 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UCSB72514  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  UCD66724  Gastridium phleoides S. S. Tillett 1956-7-6 609 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 487 Comment
  POM285359  Gaultheria shallon Lyman Benson 1928-7-10 582 Humboldt Dyerville. 61 Comment
  UC1120968  Gaultheria shallon A. E. Wieslander 1931-5-21 211 Humboldt on ridge near Kneeland Comment
  SEINET11991660  Gaultheria shallon Unknown 1977-1 s.n. Humboldt S end of Patrick's Point State Park, ca 0.2 mi W of Hwy 101 and 5 mi N of Trinidad 61 Comment
  HSC98954  Gayophytum diffusum subsp. parviflorum Cara Witte 2008-7-28 947 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  JEPS47044  Gentiana affinis var. ovata Joseph P. Tracy 1930-7-27 9110 Humboldt Bear River Ridge North Coast Ranges 609 Comment
  JEPS24349  Gentiana calycosa Joseph P. Tracy 1939-8-16 16412 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  HSC22015  Gentiana sceptrum Thomas W. Nelson 1970-10-17 237 Humboldt Big Lagoon Comment
  UC1541479  Gentiana sceptrum Harold E. Parks Jul 1931 1052 Humboldt Trinidad 76 Comment
  UC179955  Geranium carolinianum Joseph P. Tracy 1914-5-14 4436 Humboldt Fort Seward Northern Coast Region 121 Comment
  UC195434  Geranium dissectum Joseph P. Tracy 1915-6-27 4656 Humboldt Carlotta 60 Comment
  HSC89415  Geranium molle P. A. Daly 1986-3-12 103 Humboldt Trinidad Head 61 Comment
  UC1197395  Geranium molle Joseph P. Tracy 1911-7-9 3463 Humboldt near Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC100591  Gilia capitata Carl C. Marshall Jun 1885 103 Humboldt Eel River region. Comment
  HSC97970  Gilia capitata subsp. capitata Cara Witte, Michael Scott 2007-6-22 346 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  UC1197929  Gilia capitata subsp. capitata Joseph P. Tracy 1908-6 2751 Humboldt nw slope of Buck Mountain , nw slope Buck Mountain (Northern Coast Ranges) 457 Comment
  HSC35705  Gilia capitata subsp. capitata Thomas W. Nelson, B. Reinhardt 1975-7-30 2121 Humboldt Beside private road to Pilot Rock Comment
  JEPS86009  Gilia tricolor subsp. tricolor Joseph P. Tracy 1938-5-1 15733 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197905  Gilia tricolor subsp. tricolor Joseph P. Tracy 1929-5-5 8561 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River, Miranda (along South Fork of Eel River) 121 Comment
  SEINET10464629  Githopsis specularioides Tracy 1903-5-23 TRACY 1906 Humboldt Alder Point, on Eel River 152 Comment
  SEINET10873073  Githopsis specularioides Tracy 1908-6-9 TRACY 2655 Humboldt Kneeland Prairie 762 Comment
  UC1191700  Glaux maritima Malcolm A. Nobs, S. Galen Smith 1949-8-11 1343 Humboldt at eastern shore of Stone Lagoon Stone Lagoon Comment
  JEPS37565  Glebionis segetum W. L. Jepson and W. W. Mott 1903-6 2225 Humboldt bluff tops overlooking sea at Caspar 18 Comment
  UC1199277  Glebionis segetum Joseph P. Tracy 1933-8-22 12977 Humboldt at Eureka 6 Comment
  UC1409059  Glebionis segetum Robert F. Thorne and P. Everett 1965-8-8 35270 Humboldt n edge of Eureka (e of Hwy. 101) 4 Comment
  JEPS14217  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1927-6-26 8207 Humboldt beach along ocean Stone Lagoon 6 Comment
  UC1197364  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1938-7-15 16077 Humboldt mouth of Eel River 6 Comment
  HSC10000  Glyceria borealis D. J. Wilder 1965-4-28 21 Humboldt 1/2 mi. W of Arcata on Samoa Rd. Comment
  HSC34278  Glyceria elata Ken Irwin 1975-8-13 Humboldt Grogans Hole Area Comment
  CAS-BOT-BC282851  Glyceria striata Joseph P. Tracy 1925-6-13 7086 Humboldt Eureka 60 Comment
  HSC29719  Goodyera oblongifolia J. D. Ackerman 1973-8-18 120 Humboldt 2 mi. N of Manila Comment
  HSC54649  Goodyera oblongifolia Overton, Butler 1979-7-25 9850 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  SEINET12641404  Gratiola ebracteata Unknown 1936-1 15022 Humboldt Bald Mountain ; at "Lake Prairie in bog Comment
  HSC5698  Grindelia hirsutula D. E. Anderson 1962-7-15 2270 Humboldt Big Lagoon Comment
  HSC90398  Grindelia hirsutula Jean Hanson 1980-8-28 115 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. From ca. 20 to ca. 50 ft. from high tide line. Comment
  UC419067  Grindelia hirsutula H. E. and S. T. Parks 1930-9-14 773 Humboldt n shore Big Lagoon Comment
  HSC100434  Grindelia robusta Carl C. Marshall Sep 1886 253 Humboldt Marshes. Comment
  HSC74429  Hackelia bella Gail Newton 1980-8-10 2059 Humboldt Near Blake Mtn. 1707 Comment
  JEPS79901  Hackelia setosa Joseph P. Tracy 1937-7-24 15510 Humboldt 2 mi se of Devil's Hole; Trinity Summit 1584 Comment
  UC630634  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt on Van Duzen R. Blue Slide 91 Comment
  UC1199145  Helenium bigelovii Joseph P. Tracy 1932-7-14 10541 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC5764  Helenium bigelovii J. Wendell Howe 1934-6-24 1278 Humboldt Bald Hills - Mad Woods Comment
  JEPS35023  Helenium bigelovii Joseph P. Tracy 1937-8-12 15627 Humboldt Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  RSA246777  Helenium bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35286 Humboldt Big Lagoon. 3 Comment
  SD42503  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. Comment
  RSA167314  Helenium bolanderi Joseph P. Tracy, H. E. Parks 1950-7-16 11686 Humboldt Park's place, 2 miles N of Trinidad. Comment
  HSC48729  Hemitomes congestum J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 523 Humboldt Off FS 10N05. SE slope of Hopkins Butte. Bulk Collection 185 1037 Comment
  HSC102043  Hemizonella minima M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 946 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC48030  Hemizonella minima Brad Klipfel 1974-5-27 405 Humboldt Horse Mtn. Comment
  UC1565811  Hemizonella minima R. Spellenberg 1990-7-9 10228 Humboldt on USFS Rd 1 20.5 mi s Calif. Hwy. 299 and Berry Summit (14 air mi sw of Burnt Ranch, extreme e edge of county); Pilot Ridge 1371 Comment
  HSC36492  Hemizonia congesta subsp. clevelandii Thomas W. Nelson, James Nelson 1975-9-3 2192 Humboldt Along N side of Ashfield Butte Comment
  CAS-BOT-BC309983  Hemizonia congesta subsp. tracyi Richard Spellenberg 1965-6-14 1129 Humboldt Kneeland Prairie, at Kneeland Airport, 6 mi. s.e. of Kneeland Comment
  CAS-BOT-BC309986  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-12 7200 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 304 Comment
  HSC5820  Hemizonia congesta subsp. tracyi R. Spellenberg 1965-6-14 1129 Humboldt Kneeland Prairie, at Kneeland Airport 6 mi. SE of Kneeland Comment
  HSC28930  Heteromeles arbutifolia Diane Johnson 1972-12-4 Humboldt Butler Valley near Big Bend Rd. Comment
  JEPS44663  Heteromeles arbutifolia Lincoln Constance 1934-6-2 778 Humboldt Bull Creek road to mouth of Bull Creek (and up Bull Creek); South Fork Eel River, Bull Creek Region Comment
  CDA39222  Heterotheca oregona D. Juliano 2013-8-1 PDR# 120 P06003641 Humboldt Vicinity of Carlotta, along Yager Creek, near Hwy. 36 & Central Ave. Comment
  RSA0075926  Heterotheca oregona S. K. Harris 1938-8-24 881 Humboldt Sand of Eel River, near Fernbridge. Comment
  UCSB30616  Heterotheca oregona Edwards, David 1974-8-1 Humboldt Near E. bank of Mad River north of its junction with Puter Creek, ca. 2 mi. SW of Korbel 3 Comment
  UC894670  Heterotheca oregona var. rudis Carl D. Duncan 1920-9-22 Humboldt Hoopa Valley Comment
  RSA93364  Heterotheca oregona var. rudis F. W. Peirson 1941-7-29 13111 Humboldt Stephens Grove State Park. Comment
  HSC102136  Heuchera merriamii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1040 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC20195  Heuchera micrantha J. F. Knezevich 1968-5-21 451 Humboldt 15 mi. E of jct. of Hwy. 299 with Hwy. 101, past Blue Lake Comment
  RSA0066093  Heuchera micrantha var. diversifolia Thomas W. Nelson 1977-6-15 3423 Humboldt Along Forest Rd 5N10 just N of jct with Rd 6N08. 1372 Comment
  UC1199467  Hieracium albiflorum Joseph P. Tracy 1933-7-25 12831 Humboldt Horse Mountain 1432 Comment
  UC1223082  Hieracium albiflorum Joseph P. Tracy 1947-7-9 17850 Humboldt Horse Mountain 1432 Comment
  BLMAR227  Hieracium albiflorum Jennifer Anthony-Wheeler 1996-7-11 227 Humboldt N.Dobbyn creek, common throughout the forest floor 1005 Comment
  HSC31198  Hieracium albiflorum D. E. Anderson 1972-6-20 5756 Humboldt Along the N slope of Horse Mtn. Comment
  HSC98711  Hieracium albiflorum Cara Witte 2007-7-25 577 Humboldt Forest Service Road 5N10. 2.5 miles east of intersection with National Forest 1. 1327 Comment
  HSC58358  Hieracium greenei Overton, Butler 1979-8-2 12704 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC316004  Hieracium nudicaule Joseph P. Tracy 1932-7-17 10659 Humboldt Corral Prairie, Trinity Summit 1584 Comment
  POM118322  Hierochloe occidentalis Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  SDSU1121  Hierochloe occidentalis D. F. Howe 1962-5-22 3304 Humboldt 3 miles east of Orick on Bald Mt. road 396 Comment
  CDA38204  Hippuris vulgaris E. C. Whitney 1962-7-23 s.n. Humboldt Pepperwood; R. Wallen property. 0 Comment
  HSC69757  Hippuris vulgaris Thomas W. Nelson 1977-9-22 3750 Humboldt Along E side of State Rte. 101, N of Eureka airport Comment
  HSC12345  Holcus lanatus Steve Dorei 1970-10-31 144 Humboldt Scotia bluff area, N side of railroad tracks. Comment
  BLMAR40  Holcus lanatus Brad Barr 1982-6-21 40 Humboldt King range, hidden valley enclosure Comment
  RSA603763  Holcus lanatus Joseph A. Ewan 1937-7-2 10454 Humboldt Bull Creek State Park, 2 miles from Dryerville. Comment
  UC922018  Holcus mollis Joseph P. Tracy 1948-7-31 18079 Humboldt Eureka 30 Comment
  UCD84886  Holcus mollis Joseph P. Tracy 1948-7-31 18079 Humboldt Eureka. 30 Comment
  HSC71582  Holodiscus discolor Gail Newton 1980-6-16 189 Humboldt Near Onion Mtn. 1280 Comment
  UCD18348  Holodiscus discolor K. Esau 1934-5-6 s.n. Humboldt above Fort Seward. 457 Comment
  CAS-BOT-BC281264  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1932-7-10 10389 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  UC418997  Hordeum brachyantherum subsp. brachyantherum Parks and Tracy 1925-6-1 2767 Humboldt coatal plain around Humboldt Bay (Eureka); , Ereka Comment
  RSA87057  Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt About Humboldt Bay, Mouth of Elk River. 3 Comment
  HSC26777  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 464 Humboldt 915 Comment
  HSC98175  Hordeum marinum subsp. gussoneanum L. M. Malloy 1965-5-14 42 Humboldt N of Liscom's Slough 1/4 mi. on Foster Ave. Comment
  HSC10223  Hordeum murinum subsp. glaucum E. W. Styskel 1964-4-12 67 Humboldt Corner of Center St. and Hwy. 101 in Rio Dell. Comment
  UC1198713  Horkelia californica Joseph P. Tracy 1910-7-24 3159 Humboldt s side Humboldt Hill; Humboldt Bay 152 Comment
  CAS-BOT-BC537898  Horkelia tridentata var. flavescens Alice Eastwood; John Thomas Howell 1937-6-23 4806 Humboldt Little Van Duzen River Comment
  HSC98966  Hosackia oblongifolia var. oblongifolia Cara Witte 2007-6-12 239 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1360 Comment
  HSC97436  Hydrocotyle ranunculoides Ivy Watson 2008-9-28 33 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  JEPS1633  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  CAS-BOT-BC401228  Hypericum perforatum Doris K. Kildale 1925-6-20 711 Humboldt Coast above Big Lagoon Comment
  HSC67970  Hypericum perforatum J. P. Smith, Steve Selva 1970-6-14 3831 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  SEINET6178750  Hypericum perforatum Dunn Bennett, Dziekanowski 1976-8-6 479 Humboldt By Hwy 101, N Side of Orick. Rocky area, densely forested by river.; 0 30 Comment
  UC1223075  Hypochaeris glabra Joseph P. Tracy 1950-6-23 18866 Humboldt Dobbyn Creek 213 Comment
  UC249878  Hypochaeris glabra Joseph P. Tracy 1924-5-17 6678 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  RSA46818  Ipomopsis aggregata subsp. formosissima Doris K. Kildale 1925-2-15 1157 Humboldt Trinity Summit. Comment
  UC275572  Iris douglasiana Joseph P. Tracy 1924-5-25 6683 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  UC52242  Iris douglasiana J. P. Tracy 1903-8-9 1939 Humboldt immediate vicinity Eureka 0 Comment
  UCR138875  Iris douglasiana J. Marshall, J. Savage, L. Allison 1997-3-15 3 Humboldt Hwy 36, 0.5 mi west of Bridgeville 183 Comment
  JEPS93203  Iris douglasiana Carol A. Wilson 1992-5-17 92 -21 Humboldt 4.8 mi e of Hwy 101 on Bald Hills Road, Redwood National Park Redwood National Park 548 Comment
  UC667107  Iris macrosiphon Joseph P. Tracy 1932-7-17 10662 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC146222  Iris purdyi Joseph P. Tracy 1908-6-27 2684 Humboldt head of Little Laribee Creek; Northern Coast Ranges 914 Comment
  HSC65229  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 444 Humboldt 3.6 mi. N of Orleans on FS Rd. 15N01 Comment
  HSC44339  Iris tenuissima Brad W. Klipfel 1975-6-17 683 Humboldt Horse Mtn. Comment
  RSA181881  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt Mouth of Eel River. 3 Comment
  UC1103049  Juncus balticus subsp. ater Joseph P. Tracy 1904-7-31 2128 Humboldt Eureka Northern Coast Region 0 Comment
  UC14895  Juncus bolanderi J. P. Tracy 1900-9-9 940 Humboldt immediate vicinity Eureka 0 Comment
  CHSC2217  Juncus breweri M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  HSC14013  Juncus breweri S. J. Moore 1965-5-3 6 Humboldt Gold Beach near waters edge by lake Comment
  HSC13994  Juncus bufonius H. E. Parks, S. T. Parks Jul 1943 24254 Humboldt Spruce Cove, Trinidad 61 Comment
  UCD141362  Juncus bufonius Linda M. Barker 1976-6-22 1619 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC67957  Juncus confusus Steve Selva, J. P. Smith 1970-6-30 4110 Humboldt Comment
  HSC99801  Juncus effusus subsp. pacificus C. B. Wolf 1927-8-28 1190 Humboldt Eureka Bay, on the road to Arcata 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
  UC212986  Juncus ensifolius Joseph P. Tracy 1919-9-22 5276 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC1152093  Juncus ensifolius Joseph P. Tracy 1937-8-12 15625 Humboldt 3 mi s Murphy Meadow; Bald Mountain, Lake Prairie 1066 Comment
  HSC14065  Juncus hesperius R. L. Jarvis 1962-4-7 13 Humboldt E of Hwy. 101, 4 mi. S of Eureka 0 Comment
  HSC56989  Juncus laccatus Walter Overton, Marvin Butler 1979-7-23 9552 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  UC1152002  Juncus occidentalis Joseph P. Tracy 1930-7-6 8844 Humboldt Kneeland Prairie 762 Comment
  CHSC105145  Juncus planifolius Peter F. Zika 2008-10-19 24229 Humboldt Common in damp ditches, E side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  UC184180  Juncus tenuis Joseph P. Tracy 1912-7 3749 Humboldt Eureka Northern Coast Region, Lucas Prairie 0 Comment
  JEPS66621  Kalmia polifolia subsp. microphylla W. L. Jepson 1902-7-23 2109 Humboldt Trinity Summit 2133 Comment
  HSC73764  Keckiella corymbosa Gail Newton 1980-7-23 1743 Humboldt Near Packsaddle Ridge 1463 Comment
  POM225119  Keckiella corymbosa Philip A. Munz 1936-8-9 14328 Humboldt South fork of Eel River, 5 miles north of Humboldt-Mendocino county line. Comment
  UC213144  Keckiella corymbosa Joseph P. Tracy 1920-8-15 5360 Humboldt Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  HSC76253  Keckiella lemmonii Denis Kearns 1981-7-21 294 Humboldt Near Whiteys Peak 1585 Comment
  HSC56117  Kelloggia galioides Gilbert Muth 1979-8-1 11893 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  RSA43678  Kelloggia galioides H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  RSA0084173  Kopsiopsis strobilacea D. E. Anderson 1965-6-1 3773 Humboldt Along Friday Hill Road, about 2 miles northeast of its junction with Titlow Hill Road. 1158 Comment
  HSC102171  Kyhosia bolanderi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1083 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC340318  Kyhosia bolanderi Doris K. Kildale 1925-8-16 1180 Humboldt Trinity Summit. Elk Horn Prairie 1524 Comment
  UC1051588  Lactuca saligna Joseph P. Tracy 1946-8-25 17649 Humboldt Alton, Fortuna 15 Comment
  CDA18209  Lasthenia californica G. D. Barbe, T. C. Fuller 1974-6-17 1836 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  UC166218  Lasthenia californica subsp. californica Joseph P. Tracy 1903-5-22 1882 Humboldt Alder Point Flat Northern Coast Ranges, Eel River 152 Comment
  UC30471  Lasthenia californica subsp. macrantha Bolander Humboldt Comment
  SEINET11811255  Lasthenia chrysostoma J. P. Tracy 1947-1 17752 Humboldt Larrabee Valley 732 Comment
  UC169322  Lasthenia glaberrima Joseph P. Tracy 1912-6-9 3690 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC709418  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1941-3-26 16844 Humboldt w of mouth of South Fork of Trinity River 304 Comment
  CHSC110806  Lathyrus littoralis Dean Wm. Taylor 2013-5-9 21346 Humboldt North Coast. Highway 101 about 5 road miles South of Orick, beach west of the highway, opposite Freshwater Lagoon. 2 Comment
  HSC14744  Lathyrus littoralis J. W. Johnson 1962-5-6 1326 Humboldt W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC494166  Lathyrus littoralis H. E. Parks 1930-5-24 798 Humboldt Little River Lagoon Comment
  UC709414  Lathyrus palustris Joseph P. Tracy 1940-9-26 16727 Humboldt Eureka Comment
  POM277779  Lathyrus polyphyllus Lyman Benson 1928-7-9 379 Humboldt Weott Ranger Station. Seaward N coast. Watershed- South Fork Eel Rivers. 61 Comment
  UC495709  Lathyrus polyphyllus H. E. Parks and Joseph P. Tracy 1931-5-24 9455 Humboldt Kneeland, near school house Northern Coast Ranges 762 Comment
  UC1222403  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt e of Korbel (on Murphy Ridge beyond the meadows); Bald Mountain, Murphy Ridge Comment
  HSC2129  Lathyrus vestitus subsp. bolanderi Frances Oldridge 1946-1 Humboldt Willow Creek Comment
  HSC27890  Lathyrus vestitus subsp. bolanderi Clifton Raymond Chesbrough 1973-6-19 70 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UC1199084  Lathyrus vestitus var. ochropetalus Joseph P. Tracy 1924-8-10 6814 Humboldt Blue Slide, on Van Duzen River Northern Coast Ranges, Van Duzen River 91 Comment
  UC169300  Lathyrus vestitus var. vestitus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3610 Humboldt near Hydesville; Northern Coast Region 30 Comment
  CAS-BOT-BC325993  Layia carnosa Greg de Nevers 2001-4-18 12253 Humboldt Lanphere-Christenson dunes, near Arcata 9 Comment
  CAS-BOT-BC325996  Layia carnosa Frank W. Peirson 1923-7-11 3905 Humboldt 18 miles N of Eureka. Comment
  HSC5912  Layia carnosa L. H. Myers 1963-5-13 15 Humboldt Dunes W of Lanpheres Rd., Mad River Slough area. Comment
  SBBG8723  Layia carnosa H. and M. Dearing 1939-5-25 3440 Humboldt near Samoa Comment
  UCD133892  Layia carnosa Linda M. Barker 1976-4-13 1377 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA0008478  Layia carnosa Joseph P. Tracy 1946-6-2 17555 Humboldt Fairhaven, in sand dunes of the Samoa Peninsula Comment
  SEINET11811297  Layia gaillardioides J. P. Tracy 1950-1 18760 Humboldt W slope Domingo Hill leading from coast toward Petrolia Comment
  SEINET3374979 Image available Lemna minor Joseph P. Tracy 1932-8-21 10370 Humboldt Three Cabins Ranch; on E side of Mad River on W slope of Chaparral Mt. 457 Comment
  HSC12416  Leontodon saxatilis subsp. saxatilis D. Santana Oct 1970 27 Humboldt Road side near Big Lagoon Comment
  HSC47608  Lepidium lasiocarpum J. P. Smith 1977-4-23 9024 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC1199160  Lepidium nitidum Joseph P. Tracy 1913-5-4 4069 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1116219  Lepidium strictum Joseph P. Tracy 1948-5-31 17992 Humboldt Harris 762 Comment
  SEINET7967472 Image available Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg Comment
  SEINET7967470 Image available Leptosiphon bicolor Gail Newton 1980-6-28 746 Humboldt Near Mad River Butte 369 Comment
  UC180236  Leptosiphon latisectus Joseph P. Tracy 1914-5-14 4423 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  CAS-BOT-BC334615  Leucanthemum vulgare L. R. Abrams 1916-7-18 6076 Humboldt Between Arcata and Trinidad Comment
  CHSC299  Leucanthemum vulgare M. Underhill 1952-7-14 Humboldt Field. 15 Comment
  SEINET4691296 Image available Leucanthemum vulgare Joseph P. Tracy 1918-1 5080 Humboldt Northern Coast Range; Around Humboldt Bay; Humboldt Hill 152 Comment
  HSC5358  Leucanthemum vulgare John A. Dubois 1962-5-23 19 Humboldt 20 mi. E of Arcata. Comment
  HSC44553  Lewisia triphylla Brad Klipfel 1973-7-15 172 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1198372  Lewisia triphylla Joseph P. Tracy 1932-7-18 10711 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  CAS-BOT-BC444479  Lewisia triphylla Joseph P. Tracy 1932-7-10 10376 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  CDA32456  Leymus X vancouverensis Co Hort. Comm 1930-10-1 s.n. Humboldt letter in files -- not found 0 Comment
  RSA183570  Leymus mollis subsp. mollis R. I. Bonn 1965-3-12 6 Humboldt four miles west of Arcata on Lanphere Rd. Comment
  RSA295817  Leymus vancouverensis Lyman Benson 1929-7-15 1818 Humboldt Clam Beach, Trinidad Comment
  JEPS17514  Ligusticum apiifolium Joseph P. Tracy 1924-8-17 6820 Humboldt Trinidad Northern Coast Ranges, Trinidad 60 Comment
  POM160825A  Ligusticum apiifolium Joseph P. Tracy 1924-8-17 6820 Humboldt Trinidad 61 Comment
  HSC102175  Ligusticum grayi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1088 Humboldt Patterson Meadows 1555 Comment
  HSC36102  Lilaeopsis occidentalis David Sohrakoff 1972-12-11 3 Humboldt Northern most Clam Beach Pond Comment
  SEINET12057698  Lilium F. H. Utech 1977-6-30 s.n. Humboldt Redwoods National Park Comment
  CAS-BOT-BC508389  Lilium columbianum V. Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  RSA259542  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2032 Humboldt Bald Hills Road just east of Redwood National Park Comment
  CAS-BOT-BC130647  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  HSC56956  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-23 9467 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC98082  Lilium pardalinum subsp. vollmeri Cara Witte 2007-7-3 418 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/2 mile east from intersection with National Forest 1. 1397 Comment
  CAS-BOT-BC132964  Lilium rubescens Doris K. Kildale 1927-6-24 3538 Humboldt On top of ridge before taking down grade into Shelter Cove Comment
  CAS-BOT-BC506199  Lilium vollmeri Peter H. Raven; R. Snow 1958-7-20 13641 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge Comment
  HSC100558  Lilium washingtonianum Carl C. Marshall Jun 1885 88 Humboldt Coyote Camp. Comment
  UC13797  Lilium washingtonianum subsp. purpurascens Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  UC1197411  Limnanthes douglasii Joseph P. Tracy 1927-7-4 8240 Humboldt Lone Star Creek Northern Coast Ranges (Iaqua region) 609 Comment
  HSC103462  Limnanthes douglasii subsp. douglasii Thomas W. Nelson, Jane Nelson 2005-5-1 9306 Humboldt Between State Route 101 and exit to Sunnybrae 5 Comment
  UCR63386  Limnanthes douglasii subsp. nivea Barbara Ertter, Thomas J. Delendick 1987-5-16 6925 Humboldt Vista Point just west of Berry Summit on Hwy 299, c. 15 airmiles east of Arcata 832 Comment
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Jul 10 2019
  CDA1626  Limnobium laevigatum Gordon Leppig, Tony LaBanca 2003-3-13 1823 Humboldt Alder Grove Pond, Arcata. Comment
  RSA15573  Limonium californicum Carl B. Wolf 1927-8-28 1187 Humboldt Eureka Bay on road to Arcata Comment
  SEINET7249786 Image available Limonium californicum C. C. Harris, S. K. Harris 1939-1 973 Humboldt South shore of Humboldt Bay Comment
  JEPS58249  Linanthus bicolor Joseph P. Tracy 1933-6-13 12576 Humboldt near summit on road from Hoopa w to Bair's; Hoopa Mountain 1066 Comment
  UC1198539  Linanthus harknessii Joseph P. Tracy 1933-8-30 13022 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1051526  Linanthus latisectus Helen K. Sharsmith 1953-6-28 4383 Humboldt between Bell Springs and Blue Rock Ranch (Bell Springs Road); Inner North Coast Ranges 853 Comment
  UC908983  Linanthus latisectus Milo S. Baker 1931-5-17 5186 Humboldt 4.2 mi s Garberville (on highway) Comment
  CDA6374  Linaria vulgaris E. C. Whitney 1965-9-25 Humboldt Highway 101, Fortuna. 0 Comment
  HSC12547  Linum bienne C. Kline 1970-10-26 42 Humboldt End of School Rd., Mckinleyville, bluffs above Mad River. Comment
  UC668019  Lipocarpha aristulata Joseph P. Tracy 1931-9-7 9650 c Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  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
  UC535731  Lithocarpus densiflorus Eleanor Armstrong 1934-8-23 1188 Humboldt Richardson Grove Comment
  SEINET12034162  Lithocarpus densiflorus J. P. Tracy 1950-1 19253 Humboldt Grasshopper Peak (in Bull Creek State Park at head of Canoe Creek) Comment
  SEINET5725705 Image available Lithocarpus densiflorus Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6109 Humboldt From California 299 at Hawkins Bar ( in Trinity Couty), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lafthand road (leading to Waterman Ridge, Zwigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4) , travel 4.5 miles to collection site.; Denny Comment
  SEINET8981428  Lithocarpus densiflorus W. D. Billings 1940-6-25 s.n. Humboldt Cedar Creek, 35 miles east of Arcata Comment
  CAS-BOT-BC36147  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-7-25 2438 Humboldt Briceland Bridge. 1/2 mile west of Gaberville 114 Comment
  RSA21079  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1937-8-13 9239 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  RSA476670  Lithocarpus densiflorus var. densiflorus Thekla Mohr s.n. Humboldt Eel River. Humboldt and Mendocino Cos. Comment
  UC1225759  Lobularia maritima Joseph P. Tracy 1946-6-2 17556 Humboldt near Somoa (on Humboldt Bay); Humboldt Bay 6 Comment
  HSC6863  Lobularia maritima R. T. Forester 1963-3-31 35 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC1223118  Logfia gallica Joseph P. Tracy 1950-6-23 18869 Humboldt 3 mi ne of Alderpoint; Doppyn Creek 213 Comment
  UC50504  Lolium perenne Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6204 Humboldt Arcata; Russ Ranch Comment
  UC1103156  Lolium temulentum Joseph P. Tracy 1913-6-19 4211 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC50698  Lolium temulentum Joseph Burtt Davy 1899-6-20 5690 Humboldt Hupa Valley Comment
  UC552790  Lolium temulentum Joseph P. Tracy 1935-5-25 13893 Humboldt Dobbyn Creek; Northern Coast Ranges, Dobbyn Creek 152 Comment
  HSC45394  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3582 Humboldt Along W side of road N of Alder Springs, head of N Fork of Conley Creek 1280 Comment
  UC1197162  Lomatium dissectum var. dissectum Joseph P. Tracy 1927-5-15 8035 Humboldt near the South Fork Trinity R. Valley 182 Comment
  HSC63089  Lomatium martindalei M. A. Baker 1979-7-6 1013 Humboldt 0.6 k. W of FS 15N01 on FS 12N16 toward Bald Mtn. Comment
  UC1197146  Lomatium triternatum var. triternatum Joseph P. Tracy 1930-7-10 8875 Humboldt Northern Coast Ranges, Brannan Mt. 1066 Comment
  HSC97097  Lomatium utriculatum Yun Chan, Renee Meyer, Sophary Yun 2007-6-4 2 Humboldt 7.4 mi. S of Hwy. 299 on NF1, Coldspring Camp 1372 Comment
  CAS-BOT-BC240470  Lonicera hispidula Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC48414  Lonicera hispidula var. vacillans J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9928 Humboldt Ishi Pishi Rd., 2.5 mi. from Jct. with State Rte. 36 in Orleans. 213 Comment
  UC1239554  Lonicera hispidula var. vacillans Joseph P. Tracy 1911-7-9 3469 Humboldt near mouth Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC168948  Lonicera hispidula var. vacillans Joseph P. Tracy 1904-7-31 2132 Humboldt Eureka Northern Coast Region 0 Comment
  UC177242  Lonicera hispidula var. vacillans Joseph P. Tracy 1912-7-4 3735 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UCD137382  Lonicera involucrata Gordon Leppig 1998-6-26 857 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. 18 Comment
  HSC37832  Lonicera involucrata var. ledebourii Thomas W. Nelson, James Nelson 1976-3-11 2264 Humboldt Beside Eel River just N of W terminus of Singley Rd. Comment
  HSC49823  Lonicera involucrata var. ledebourii R. York 1979-4-13 226 Humboldt Big Lagoon Bog. Comment
  RSA18019  Lonicera involucrata var. ledebourii C. B. Wolf 1927-8-22 770 Humboldt Big Lagoon. Comment
  POM199441  Lotus aboriginus H. E. Parks, J. P. Tracy, C. R. Parks 1930-9-15 0762 Humboldt Kneeland, Bald Hills. Comment
  UC162607  Lotus crassifolius var. crassifolius Harley P. Chandler Jun 1901 1470 Humboldt Orleans Bar to Sommes Bar; North Coast Ranges 365 Comment
  CDA27196  Lotus denticulatus T. R. Haig 1960-6-16 Humboldt 1 mile west of Bridgeville. 0 Comment
  SEINET12158899  Lotus denticulatus J. P. Tracy 1934-1 13219 Humboldt Horse Mountain 1433 Comment
  SEINET3696752 Image available Lotus denticulatus Joseph P. Tracy 1908-7-30 2756 Humboldt Valley of Van Duzen River; Opposite Buck Mountain 762 Comment
  HSC98249  Lotus formosissimus H. E. Parks, S. T. Parks Jun 1952 24449 Humboldt Spruce Cove, Trinidad 61 Comment
  RSA168860  Lotus formosissimus Joseph P. Tracy 1950-6-8 18746 Humboldt Capetown, on Bear River, top of Cape Ridge. 152 Comment
  UC15566  Lotus nevadensis var. nevadensis Harley P. Chandler 1901-6-14 1487 Humboldt Orleans to Sommes Bar; North Coast Ranges, Klamath River 426 Comment
  SEINET12154263  Lotus purshianus L. K. Henry 1971-1 s.n. Humboldt along rt 36, 2miE of Dinsmore in Six Rivers National Forest Comment
  UCD106710  Lotus uliginosus R. Tofsrud 1948-7-1 s.n. Humboldt Between Fields Landing and Loleta. Comment
  UC1197304  Lotus wrangelianus Joseph P. Tracy 1927-7-24 8303 Humboldt 3 mi s Point of Cape; Northern Coast Ranges, Cape Mendocino 3 Comment
  JEPS55422  Lotus yollabolliensis Joseph P. Tracy Jul 16 1930-Jul 30 1930 8945 Humboldt near Blake lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  RSA21446  Lotus yollabolliensis C. B. Wolf 1937-8-12 9210 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  HSC74666  Luina hypoleuca Gail Newton 1981-8-7 2423 Humboldt Near Bug Creek Butte 1244 Comment
  UC1223213  Luina hypoleuca Joseph P. Tracy 1947-6-21 17716 Humboldt along Trinity Highway Willow Creek Canyon Comment
  SBBG52995  Lupinus J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  UC503003  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-6-14 10161 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC169051  Lupinus albifrons Joseph P. Tracy 1912-8-3 3969 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC146921  Lupinus albifrons var. albifrons Harley P. Chandler June, 1901 1424 Humboldt Weitchpek North Coast Ranges, Klamath River (Klamath River) 304 Comment
  CDA18904  Lupinus albifrons var. collinus P. Haggard, Spadoni 2000-5-31 PDR 1170224 Humboldt North Coast Ranges; Along US Forest Service Hwy 1 in the vicinity of Eureka. 0 Comment
  UC1197255  Lupinus arboreus J. P. Tracy 1912-3-31 3566 Humboldt Blue Lake 30 Comment
  UC503006  Lupinus arboreus Joseph P. Tracy 1932-5-16 10104 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, on Humboldt Bay 6 Comment
  RSA20810  Lupinus arboreus var. arboreus Carl B. Wolf 1937-9-9 9308 Humboldt Coast, 2 miles south of Cape Mendocino. 6 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
  UC156991  Lupinus bicolor Joseph P. Tracy 1908-6 2693 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET10484916  Lupinus bicolor subsp. pipersmithii Charles Piper Smith 1948-5-10 Smith 48251 Humboldt Highway 101 - garberville, 2 miles north. Comment
  RSA276277  Lupinus bicolor subsp. umbellatus Lyman D. Benson 1929-7-19 1860 Humboldt Dyerville to Mat[t]ole River. Comment
  UC503000  Lupinus latifolius var. latifolius Joseph P. Tracy 1932-7-12 10435 Humboldt open ground at Corral Prairie (Trinity Summit); Klamath Mountains, , Corral Prairie 1524 Comment
  UC1223288  Lupinus latifolius var. latifolius Joseph P. Tracy 1936-7-5 15036 Humboldt top Grouse Mountain; top of Grouse Mountain 1524 Comment
  UCD108590  Lupinus lepidus var. sellulus Richard Spellenberg 1965-6-13 1110 Humboldt on e. side of Trinity River, about 3/4 mi. s. of hwy. through Hoopa Indian Reservation. Comment
  SDSU4988  Lupinus littoralis D. F. Howe 1962-5-22 3259 Humboldt 0.5 miles north of Orick on #101. 30 Comment
  RSA87026  Lupinus luteolus F. W. Peirson 1926-7-13 7057 Humboldt Near Blue Lake, Mad River Comment
  UC170031  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1912-7-21 3784 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC89687  Lupinus rivularis William E. Avery, Mathew Henry Bergvall-Mensor, Steve Wilson 1989-3-23 Humboldt 40 m from Arcata Marsh parking lot on left side of the road 1 Comment
  HSC91365  Lupinus rivularis A. Smith, A. Eller, B. Hoffman 1989-5-7 34 Humboldt 1 mi. W on Somoa Blvd. from J St. 0 Comment
  SEINET12154709  Lupinus rivularis J. P. Tracy 1934-1 13482 Humboldt Samoa Sand Dunes Comment
  HSC38371  Lupinus variicolor Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  BLMAR289  Luzula comosa Jennifer Anthony-Wheeler 2000-4-18 289 Humboldt King range, growing on rocky ridgeline, outcrop/vista in millcrk forest 402 Comment
  HSC98641  Luzula comosa Cara Witte 2007-6-1 176 Humboldt Along Forest Service 5N10. 1.75 miles east of intersection with National Forest 1. 1365 Comment
  UC1103682  Luzula comosa var. laxa Joseph P. Tracy 1924-4-27 6649 Humboldt Northern Coast Ranges: Near Berry's on Redwood Creek 365 Comment
  UC1103675  Luzula subsessilis Joseph P. Tracy 1900-5-28 819 Humboldt Northern Coast Region, at Eureka 0 Comment
  RSA183532  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  RSA20816  Lycopodium clavatum C. B. Wolf 1937-9-10 9314 Humboldt 3.4 miles E of Trindad at hammond Lumver Co. s Camp 20 (abandoned) 152 Comment
  CDA42448  Lycopodium clavatum Gordon Leppig 2004-2-3 2130 Humboldt The Pacific Lumber Company land, northeast edge of THP 1-00-032 HUM, Unit 1. Comment
  HSC62983  Lysichiton americanus David Wheeler 1979-4-20 Humboldt Clam Beach Ponds, N pond, 0.25 mi. S of Crannel Rd. between the frontage road and Hwy. 101 Comment
  SEINET11770340  Lysichiton americanus F. H. Utech 1986-1 86 -416 Humboldt between Capetown & Ferndale along Mattole Creek, SW slope of Bear River Ridge 100 Comment
  HSC12034  Lythrum hyssopifolia D. Santana 1970-10-28 82 Humboldt 3 mi. S of Trindad. Comment
  HSC97613  Madia elegans Cara Witte 2007-6-4 180 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  POM161463  Madia elegans subsp. elegans Joseph P. Tracy 2683 Humboldt Hillside near bridge across Little Va Duzen, northwest slope of Buck Mountain 762 Comment
  UC127612  Madia exigua Harley P. Chandler June, 1901 1330 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC204700  Madia exigua Joseph P. Tracy 1918-7-5 5006 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  CAS-BOT-BC343017  Madia gracilis Joseph P. Tracy 1937-7-29 15596 Humboldt South Fork Mountain. West slope near top, at Hyampom Trail 1676 Comment
  CAS-BOT-BC343019  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  UC1199396  Madia gracilis Joseph P. Tracy 1912-6-9 3653 Humboldt Alton Northern Coast Ranges 30 Comment
  HSC49984  Madia gracilis M. A. Baker 1979-6-7 786 Humboldt N bank of road to Snow Mtn. 610 Comment
  UC176465  Madia gracilis Joseph P. Tracy 1913-6-13 4109 Humboldt Dinsmore's Ranch; Buck Mountains, Valley of Van Duzen River 762 Comment
  UC495627 Image available Madia gracilis Joseph P. Tracy 1931-6-28 9588 Humboldt lower foothills of northwest slope of Buck Mountain Comment
  UC1069897  Madia sativa H. L. Person 1932-8-15 Humboldt Korbel Eureka Quadrangle Comment
  CHSC10104  Maianthemum dilatatum J. W. Johnson 1962-4-21 1287 Humboldt Arcata. Along Lanphere Lane, Samoa Peninsula. Comment
  HSC47498  Maianthemum dilatatum Sheila Logan 1978-4-10 23 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  CAS-BOT-BC508505  Maianthemum dilatatum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC508512  Maianthemum dilatatum H. C. Cantelow 1936-5-18 s.n. Humboldt 5 miles north of Orick Comment
  HSC15592  Maianthemum dilatatum J. W. Johnson 1962-4-21 1287 Humboldt Samoa Peninsula, Arcata Comment
  HSC22058  Maianthemum dilatatum D. R. Becker 1966-5-7 47 Humboldt By Eureka Municipal Golf Course, 0.5 mi. E of F and Alder Sts. 9 Comment
  JEPS79931  Maianthemum dilatatum Joseph P. Tracy 1926-4-25 7414 Humboldt Grizzly Creek on Van Duzen R. Northern Coast Ranges, Van Duzen R., Grizzly Creek 91 Comment
  HSC45619  Maianthemum racemosum subsp. amplexicaule Diane L. Reed 1978-4-22 36 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC54225  Maianthemum racemosum subsp. amplexicaule Griswold, Butler 1979-7-12 7290 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC57938  Maianthemum racemosum subsp. amplexicaule Gilbert Muth 1979-8-1 11600 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC58079  Maianthemum racemosum subsp. amplexicaule G. L. Clifton, Griswold 1979-8-1 11983 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC70565  Maianthemum racemosum subsp. amplexicaule M. A. Baker 1980-7-23 3186 Humboldt Near Orleans Mtn. 1859 Comment
  HSC45493  Maianthemum racemosum subsp. amplexicaule Maralyn O'Meara 1972-6-8 105 Humboldt Along Bald Hills Rd., 18 mi. from junction with Hwy. 101 Comment
  RSA135322  Maianthemum racemosum subsp. amplexicaule Volney Rattan 1883-06 s.n. Humboldt Near Summit between Pilot Creek and South Fork Trinity River Comment
  POM187937  Malacothrix floccifera Marcus E. Jones 1931-7-16 29095 Humboldt Junction, East of Arcata. Comment
  UC127825  Malacothrix floccifera Harley P. Chandler June, 1901 1360 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  POM56123  Malacothrix floccifera Joseph P. Tracy 1918-7-6 5049 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC33287  Malacothrix floccifera C. C. Marshall 1888-1-1 Humboldt Comment
  UC14182  Malus fusca W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  UC154239  Malus fusca J. P. Tracy 1909-5-2 2954 Humboldt immediate vicinity Eureka 0 Comment
  UC1409146  Marah oregana Larry DeBuhr, Gary Wallace 1973-5-19 1116 Humboldt Gold Bluff Beach Prairie Creek Redwood State Park Comment
  UC168954  Marah oregana Joseph P. Tracy 1909-5-30 2980 Humboldt Eureka Northern Coast Region 0 Comment
  UCSB15707  Marah oregana Breedlove, Dennis 1961-7-4 Humboldt North bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  UCD107771  Medicago lupulina W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  HSC14978  Medicago polymorpha A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek jct., 50 yards W of Lindsey Creek. Comment
  UC1145134  Melica aristata Joseph P. Tracy 1949-7-19 18374 Humboldt Friday Camp Grouse Mountain (Grouse Mountain) 1219 Comment
  CHSC70212  Melica californica D. E. Anderson 1965-5-22 3752 Humboldt On Kneeland-Bridgeville road. Comment
  RSA123518  Melica geyeri H. S. Yates 1936-6-17 5693 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  CAS-BOT-BC281319  Melica harfordii David D. Keck 1948-7-2 6012 Humboldt 1 mile N of Richardson Grove, US Highway 101 highway, along S Fork of Eel River, S facing road cut and ditch Comment
  CAS-BOT-BC281025  Melica stricta Joseph P. Tracy 1935-7-30 14377 Humboldt W side at top of Salmon Summit 2103 Comment
  SEINET200622 Image available Melica subulata Joseph P. Tracy 1901-5-5 1063 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC38867  Melica subulata Harley P. Chandler May 1901 1174 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  HSC69698  Melilotus albus R. Kalal 1980-6-8 17 Humboldt Pump Station #1, along the Mad River 14 Comment
  HSC71440  Melilotus albus J. P. Smith 1973-5-26 6793 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  JEPS65536  Melilotus indicus Lincoln Constance 1934-5-26 662 Humboldt s end of Dyerville Bridge, South Fork of Eel River, Bull Creek Region Dyerville Bridge; Bull Creek Region, South Fork Eel River, Dyerville Bridge 45 Comment
  POM174071  Mentha canadensis Joseph P. Tracy 1918-9-29 5105 Humboldt South Fork of Eeel River 4 miles above the mouth. Comment
  RSA43834  Mentha canadensis H. M. Pollard 1947-8-28 s.n. Humboldt Near old placer mine, north of Forest Service Station, Orleans. Comment
  UC577379  Mentha canadensis Joseph P. Tracy 1924-8-31 6854 Humboldt Klamath River at mouth of Bluff Cr.; Klamath River at mouth Bluff Cr. 91 Comment
  JEPS63451  Mentha pulegium W. L. Jepson 1936-8-11 17872 Humboldt South Fork Eel River Philipsville; , Philipsville Comment
  JEPS63455  Mentha pulegium Joseph P. Tracy 1923-6-20 6336 Humboldt Briceland 304 Comment
  SEINET200815  Mentzelia dispersa Joseph P. Tracy 1908-7-30 2843 Humboldt Northwest slope of Buck Mountain 1219 Comment
  SEINET2031086 Image available Menziesia ferruginea Joseph P. Tracy 1908-1 2676 Humboldt Region about Humboldt Bay; in redwood forest on Freshwater Creek 0 Comment
  SEINET202280  Micropus californicus var. californicus J. P. Tracy 1947-5-10 17681 Humboldt Near Briceland Comment
  CAS-BOT-BC322622  Microseris Joseph P. Tracy 1936-6-28 15027 Humboldt Lake Prairie, Baldt Mountain 1066 Comment
  CHSC93621  Microseris borealis K. L. Chambers 1957-8-31 1225 Humboldt Lake Prairie, on road from Bald Mt. to Snow Camp, ca. 9 mi. S of Ranger Station. In bog, SE end of the lake. Comment
  UC1239522  Microseris douglasii subsp. douglasii Joseph P. Tracy 1938-6-9 15887 Humboldt 3 mi w Harris 914 Comment
  CAS-BOT-BC322682  Microseris laciniata K. L. Chambers 1969-5-26 2932 Humboldt Weitchpec, 0.8 mile west of Highway 96 on the way to the old school-house Comment
  UC1223196  Microseris laciniata subsp. laciniata Joseph P. Tracy 1942-6-15 17169 Humboldt five mi n Garberville (along Eel River from South Fork Eel River to Scotia); Northern Coast Ranges, along Eel River from South Fork 60 Comment
  RSA167429  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1947-7-9 17828 Humboldt Horse Mountain, lower slopes 1128 Comment
  UC1196833  Mimulus arvensis Joseph P. Tracy 1925-5-25 13897 Humboldt Dobbyn Creek 152 Comment
  HSC27389  Mimulus aurantiacus var. aurantiacus Thomas W. Nelson 1970-10-31 287 Humboldt Beside railroad tracks at the N end of the Scotia Bluffs Comment
  HSC55737  Mimulus breweri G. L. Clifton, Griswold 1979-7-26 10234 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC70513  Mimulus cardinalis Thomas W. Nelson, Jane P. Nelson 1977-8-6 3685 Humboldt Along Mad River at Anderson's Ford 640 Comment
  UC1196772  Mimulus cardinalis Joseph P. Tracy 1924-8-10 6795 Humboldt 10 mi e Carlotta (near Strong's Station); Northern Coast Ranges 91 Comment
  UC446437  Mimulus cardinalis Mrs. M. H. Manning 1901-7-29 321 Humboldt Trinity River Hupa Valley Comment
  RSA135338  Mimulus dentatus Volney Rattan 1882-06 s.n. Humboldt Humboldt Comment
  HSC103078  Mimulus guttatus Sydney Carothers 2014-6-12 11 Humboldt Six Rivers National Forest, Lassics Botanical Area, Red Lassic. Near upper pond and rustic camp site. 1706 Comment
  JEPS10474  Mimulus guttatus Lincoln Constance 1934-5-26 683 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  HSC79538  Mimulus guttatus Kenneth Clark 1979-7-1 456 Humboldt Dead Man's Gulch; at Shelter Cove 11 Comment
  POM273242  Mimulus guttatus Lyman Benson 1928-7-10 453 Humboldt Eureka, along ocean bluffs. Comment
  RSA46855  Mimulus guttatus Doris K. Kildale 1927-6-25 3566 Humboldt Between Horn and Shelter Cove. Comment
  JEPS10795  Mimulus inodorus Joseph P. Tracy 1932-7-16 10610 Humboldt Corral Prairie Trinity Summit 1584 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
  UC169096  Mimulus inodorus Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5500 Humboldt between Camp Grant and Pepperwood; North Coast Ranges Comment
  UC582480  Mimulus inodorus Joseph P. Tracy 1923-9-16 6551 Humboldt near South Fork; Trinity River Valley 182 Comment
  RSA535811  Mimulus kelloggii David M. Thompson 1986-3-26 856 Humboldt Somes Bar. Along Hwy 96, 100 ft S of Siskiyou Co. line; at confluence of Klamath and Salmon rivers. 61 Comment
  UC1196803  Mimulus layneae Joseph P. Tracy 1937-7-5 15373 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC44556  Mimulus moschatus Brad Klipfel 1973-7-15 175 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA447972  Mimulus moschatus Unspecified 1924-7-15 s.n. Humboldt Bull Creek. Comment
  HSC100673  Mimulus moschatus Carl C. Marshall Sep 1886 248 Humboldt Ravines, etc. Comment
  HSC20782  Mimulus moschatus W. D. Stevens 1967-7-22 49 Humboldt Above the dirt road from old Hwy. 101 to the top of N bank of Mad River Comment
  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
  CAS-BOT-BC388621  Minuartia douglasii Doris Kildale 1931-6-6 10875 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  CAS-BOT-BC388630  Minuartia douglasii Carl B. Wolf 1937-6-14 8822 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  HSC78916  Minuartia douglasii Jimerson, Imper 1982-5-17 1435 Humboldt Near Ashfield Ridge. 822 Comment
  UC1198330  Minuartia douglasii Joseph P. Tracy 1911-7-4 3299 Humboldt Willow Creek Northern Coast Ranges (near mouth, tributary of Trinity River) 182 Comment
  HSC40009  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson 1976-7-1 2905 Humboldt Along ridge N of Bear Creek. 1463 Comment
  CAS-BOT-BC48149  Mitella caulescens Volney Rattan 1882-6-1 s.n. Humboldt Coast Mts. North of San Francisco Bay - Near Boulder Cr. Comment
  UC154084  Mitella ovalis J. P. Tracy 1901-6-10 1133 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC37863  Modiola caroliniana Peter Sorensen 1976-6-16 Humboldt Humboldt Bay; Woodley Island Comment
  HSC74644  Moehringia macrophylla M. A. Baker 1980-5-17 1223 Humboldt Near Le Perron Peak 792 Comment
  HSC57942  Monardella glauca G. L. Clifton, Griswold 1979-7-31 11612 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58101  Monardella odoratissima subsp. pallida G. L. Clifton, Griswold 1979-8-1 12032 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1239679  Monardella purpurea Joseph P. Tracy 1935-7-14 14075 1/2 Humboldt Back of White Rock Springs; North Coast Ranges, Grouse Mountain 1554 Comment
  CAS-BOT-BC220217  Monardella sheltonii Alice Eastwood; John Thomas Howell 1937-6-22 4744 Humboldt Near Blocksburg Comment
  RSA697855  Monardella villosa subsp. subserrata J. R. Bruff 1937-8-17 934 Humboldt Richardson Grove, bed of Eel River. Comment
  UC162959  Monardella villosa subsp. villosa Joseph P. Tracy 1911-7-9 3476 Humboldt Near Willow Creek west side of river; Northern Coast Ranges, Trinity River 182 Comment
  UC1223248  Montia chamissoi Joseph P. Tracy 1950-6-25 18894 Humboldt 3 mi s of Burr Valley (on w side of Buck Mountain, near the Sproston place on the road to the Albee Pass); Buck Mountain 1158 Comment
  POM168985  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Eureka Comment
  HSC32090  Montia linearis D. E. Anderson, T. Nelson, S. Dowty 1972-6-17 5708 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC96218  Montia linearis J. McIntire, S. Lyon 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on FS Rd. NF1 1280 Comment
  HSC55086  Montia parvifolia G. L. Clifton, Terry Griswold 1979-7-31 11753 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC17671  Montia parvifolia Doris K. Kildale 1925-6-14 671 Humboldt Yager Comment
  SD40075  Morella californica Edith A. Purer 1932-7-27 4134 Humboldt Samoa Comment
  CAS-BOT-BC260573  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  UC1103785  Muhlenbergia filiformis H. E. Parks and Joseph P. Tracy 1934-6-27 11083 Humboldt Grouse Mt. Northern Coast Ranges 1432 Comment
  UC552838  Myosotis discolor Joseph P. Tracy 1935-5-25 13847 Humboldt Fort Seward North Coast Ranges, Fort Seward 106 Comment
  HSC3743  Myosotis discolor J. R. Good 1964-5-15 42 Humboldt Mad River Park. NE of parking lot, 85 yds. towards Mad River Comment
  HSC90317  Myosotis discolor Jean Hanson 1980-5-24 76 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka, W end of island, base of dike on S side Comment
  JEPS70782  Myosotis latifolia W. L. Jepson 1934-5-7 16685 Humboldt Dyerville Comment
  UC1196177  Myosurus minimus Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch); Cathey Ranch 304 Comment
  HSC62986  Myriophyllum hippuroides David Wheeler 1979-4-21 76 Humboldt 14 mi. up Snow Camp Rd., 4 mi. past Ward Rd., in Lake Prairie Comment
  HSC77925  Myriophyllum hippuroides Peter Steclel Nov 1977 Humboldt Growing in Prairie Lake Comment
  HSC77872  Myriophyllum sibiricum Andy Gordus 1978-1 Humboldt N side of Hwy. 299, near Essex Rd. Comment
  UC907846  Navarretia capillaris Joseph P. Tracy 1932-7-10 10374 Humboldt Corral Prairie , Corral Prairie (Trinity Summit) 1584 Comment
  HSC32096  Navarretia intertexta D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5704 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC42587  Navarretia pubescens Maralyn O'Meara 1974-7-11 532 Humboldt Kneeland, Barry Ridge Comment
  SEINET202730  Navarretia pubescens Joseph P. Tracy 1950-6-23 18861 Humboldt Dobbyn Creek, 3 miles NE of Alderpoint. 213 Comment
  HSC45622  Nemophila menziesii Diane L. Reed 1978-4-22 28 Humboldt Tish Tang Campground, 5 miles north of Willow Creek on State Hwy. 96. Comment
  CAS-BOT-BC219407  Nemophila parviflora M. S. Jussel 1931-5-2 92 Humboldt Sylvandale, 8 miles N. of Garberville Comment
  HSC32319  Nemophila parviflora D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5652 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC57706  Nemophila parviflora G. L. Clifton, Griswold 1979-7-25 10955 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC562595  Nemophila parviflora Joseph P. Tracy 1932-7-13 10492 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  CAS-BOT-BC219409  Nemophila parviflora Kenneth Clark 1980-3-23 533 Humboldt Shelter Cove. South fork Dead Man's [Deadman] Gulch 60 Comment
  UC1239749  Nemophila parviflora Joseph P. Tracy 1921-4-24 5437 Humboldt Phillipsville Flat Northern Coast Ranges, , South Fork Eel Ri (South Fork Eel River) 91 Comment
  HSC97499  Nemophila parviflora var. austiniae C. Witte 2007-5-21 50 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  HSC97976  Noccaea fendleri subsp. glauca Cara Witte 2007-7-5 423 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  HSC99041  Noccaea montana subsp. montana Cara Witte 2008-7-1 777 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  HSC41308  Notholithocarpus densiflorus Brad Klipfel 1974-7-23 471 Humboldt Horse Mountain Comment
  UCD110186  Notholithocarpus densiflorus B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  HSC20657  Nuttallanthus texanus R. J. Vernimen 1963-4-27 36 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata. Comment
  UC1198788  Oemleria cerasiformis Joseph P. Tracy 1933-5-20 12218 Humboldt Capetown; on Bear River 30 Comment
  CHSC31294  Oenanthe sarmentosa Mark Stopher 1980-6-4 106 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  CDA38484  Oenanthe sarmentosa Tario 1932-9-21 s.n. Humboldt Arcata. 0 Comment
  CDA38492  Oenanthe sarmentosa Margaret Bellue Jul 1933 s.n. Humboldt [no further data] 0 Comment
  RSA46821  Oenanthe sarmentosa Doris K. Kildale 1925-7-28 1094 Humboldt [Unspecified] Comment
Read comments
Mar 22 2014
  CHSC12923  Orobanche californica subsp. californica K. D. Cox 1974-6-7 189 Humboldt Big Lagoon County Park, on Hwy. 101, about 7 mi. N. of Tinidad. Next to parking lot. 0 Comment
  SEINET186016  Orobanche californica subsp. californica Joseph P. Tracy, H. E. Parks 1924-8-3 6761 Humboldt Big Lagoon 6 Comment
  HSC102611  Orobanche uniflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1598 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC104436  Orthilia secunda Bianca Hayashi 2013-6-18 Humboldt Northwest of Snow Camp Mountain Comment
  POM296047  Orthocarpus erianthus var. gratiosus S. K. Harris 1942-6-10 1474 Humboldt Bear River Ridge. 457 Comment
  HSC56205  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-8-2 12197 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SEINET12270144  Orthocarpus imbricatus J. P. Tracy 1951-1 19562 Humboldt halfway between Snow Camp & Twin Lakes Comment
  HSC55999  Osmorhiza berteroi Overton, Butler 1979-7-31 11444 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC21585  Osmorhiza purpurea T. W. Beck 1963-5-10 49 Humboldt Camp Bauer, Korbel Comment
  SEINET3347445 Image available Oxalis corniculata Joseph P. Tracy 1912-6-9 3682 Humboldt Alton 30 Comment
  HSC27893  Oxalis oregana Clifton Raymond Chesbrough 1973-6-19 65 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UCR123951  Oxalis oregana George K. Helmkamp, E. A. Helmkamp 2001-7-8 6976 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  SEINET3347653 Image available Oxalis oregana Loran C. Anderson 1949-6-4 Humboldt South of Eureka Comment
  UCSB7499  Oxalis oregana Phillips, Priscilla 1958-6-7 Humboldt Near entrance to Prairie Creek Redwood Park, north of Orick Comment
  SEINET3347161 Image available Oxalis trilliifolia Joseph P. Tracy 1923-6-24 6362 Humboldt Bald Mountain, near High Prairie 1067 Comment
  SEINET200360 Image available Paeonia brownii Joseph P. Tracy 1938-6-13 15920 Humboldt Grouse Mountain at 'Cold Springs 1430 Comment
  UC183769  Paeonia brownii Joseph P. Tracy 1913-6-17 4150 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  UC1103772  Panicum acuminatum var. acuminatum Joseph P. Tracy 1932-9-5 10776 Humboldt Mattole Valley; Northern Coast Ranges, Upper Mattole, Mattole Valley 152 Comment
  UC1145221  Panicum acuminatum var. acuminatum Joseph P. Tracy 1938-9-25 16172 Humboldt Bald Mountain at Lake Prairie; Bald Mountain at Lake Prairie 1066 Comment
  UC187239  Panicum acuminatum var. acuminatum Joseph P. Tracy 1900-8-26 925 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  UC187241  Panicum acuminatum var. acuminatum Joseph P. Tracy 1906-7-1 2517 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  CAS-BOT-BC253708  Panicum capillare Peter Rubtzoff 1968-9-4 5956 Humboldt Goulds Bar, S Fork Eel River SE of Weott Comment
  HSC24218  Panicum capillare D. E. Anderson 1962-8-17 2289 Humboldt Dunes at Big Lagoon Co. Park. Comment
  UC1145035  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1950-8-20 19324 Humboldt 8 mi below Orleans; Klamath River near Slate Creek 121 Comment
  RSA624795  Parapholis incurva Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-25 788 Humboldt Big Lagoon State Park. 2 Comment
  JEPS10351  Pedicularis densiflora Joseph P. Tracy 1927-5-15 8060 Humboldt near summit on road w from Hoopa to Bair's; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC39931  Pellaea brachyptera J. O. Sawyer 1970-6-25 2294 Humboldt 1646 Comment
  CAS-BOT-BC67623  Pellaea mucronata Donald Branscomb 1959-4-1 s.n. Humboldt Bear Butte, near Garberville. 853 Comment
  UC1222463  Penstemon anguineus Joseph P. Tracy 1947-7-5 17817 Humboldt near Box Camp (Trinity Summit); , near Box Camp 1524 Comment
  HSC63803  Penstemon anguineus M. A. Baker 1979-6-7 798 Humboldt Along road to Telescope Peak next to stream between Telescope Peak and Snow Mtn. 915 Comment
  HSC102599  Penstemon deustus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1586 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC76256  Penstemon heterophyllus Denis Kearns 1981-7-6 43 Humboldt Near Mosquito Lake 1122 Comment
  HSC41280  Penstemon laetus subsp. sagittatus Brad Klipfel 1974-6-25 441 Humboldt Horse Mtn., along ridge running to the E of Horse Mtn. proper Comment
  UC585631  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-2 15395 B Humboldt on ridge 2 mi e Grove's Prairie; Trinity summit, e of Grove's Prairie 1524 Comment
  UC1222427  Penstemon laetus var. sagittatus Joseph P. Tracy 1933-7-9 12651 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1066 Comment
  HSC100914  Penstemon menziesii Carl C. Marshall Jun 1886 305 Humboldt Trail E of Hoopa. Comment
  HSC102096  Penstemon newberryi var. berryi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 999 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC41737  Penstemon newberryi var. berryi Chestnut and Drew 1888-7-21 Humboldt S. Fork Mountain Comment
  HSC56161  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-8-1 12037 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1011931  Penstemon rattanii F. W. Pennell and J. P. Tracy 1940-7-8 26105 Humboldt Kneeland 670 Comment
  HSC39986  Pentagramma triangularis Linda M. Barker 1976-3-11 1329 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC71618  Pentagramma triangularis subsp. triangularis Doris K. Kildale 1928-12-30 6765 Humboldt Phillipsville Comment
  UC314588  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1923-6-3 6255 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1222744  Perideridia kelloggii Joseph P. Tracy 1950-10-7 19382 Humboldt e Redwood Creek (on the Trinity Hwy); Berry's Mountain 548 Comment
  UC184323  Perideridia kelloggii Joseph P. Tracy 1912-8-3 3967 Humboldt Dinsmore's Ranch Northern Coast Ranges, valley of Van Duzen River (opposite Buck Mt.) 762 Comment
  HSC99093  Perideridia oregana Cara Witte 2007-7-8 447 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  HSC12557  Persicaria maculosa D. La Conte 1970-8-11 15 Humboldt Along side of creek intersecting Campton Rd. Comment
  HSC79486  Petasites frigidus var. palmatus Kenneth Clark 1980-3-23 534 Humboldt South fork of Dead Man's Gulch 38 Comment
  SDSU391  Petasites frigidus var. palmatus D. F. Howe 1963-5-26 3553 Humboldt 2.8 miles east of Orick on Bald Hill road.n 427 Comment
  UC1223042  Petasites frigidus var. palmatus Joseph P. Tracy 1947-2-23 17670 Humboldt near Grizzly Creek; Van Duzen River 91 Comment
  CDA20465  Petrorhagia dubia P. Haggard 2003-9-15 PDR 1285905 Humboldt Northwestern California; Klamath River near Orleans. 0 Comment
  HSC63487  Petrorhagia dubia M. A. Baker 1977-6-6 381 Humboldt Hoopa Indian Reservation Comment
  HSC103089  Phacelia corymbosa Sydney Carothers 2014-6-22 4 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  BLMAR633  Phacelia heterophylla subsp. virgata Jennifer Wheeler 2011-6-15 633 Humboldt Lacks Creek, Junction of midslope road, firewood cutting area road and Pine Ridge Road 957 Comment
  UC562573  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1926-6-20 7661 Humboldt lower slopes Horse Mt. 914 Comment
  HSC57855  Phacelia mutabilis G. L. Clifton 1979-7-31 11371 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC74412  Phacelia mutabilis Gail Newton 1980-8-10 2030 Humboldt Near Blake Mtn. 1707 Comment
  UC175504  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1912-6-9 3666 Humboldt Alton Northern Coast Region 30 Comment
  UC562570  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1936-6-9 14876 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  RSA10051  Phalaris californica Joseph P. Tracy 1925-6-7 7085 Humboldt On Lord Ellis Road, on Bald Mountain 610 Comment
  HSC98094  Philadelphus lewisii Cara Witte 2007-7-11 484 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  HSC102142  Phleum alpinum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1048 Humboldt Patterson Meadows 1555 Comment
  HSC100894  Phlox adsurgens Carl C. Marshall Jun 1886 324 Humboldt Trail E of Hoopa. Comment
  HSC45267  Phlox diffusa M. Alcasas 1978-6-3 112 Humboldt Horse Mtn. summit 1513 Comment
  HSC82620  Phlox diffusa Thomas W. Nelson 1979-7-11 5004 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1178963  Phlox douglasii subsp. rigida Joseph P. Tracy 1927-6-12 8126 Humboldt Horse Mountain 1432 Comment
  UC1198553  Phlox douglasii subsp. rigida Joseph P. Tracy 1927-6-12 8142 Humboldt Horse Mountain 1432 Comment
  JEPS71116  Phlox gracilis Joseph P. Tracy 1930-6-21 8791 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  HSC45100  Physocarpus capitatus R. Sutherland 1978-5-12 9 .12578 Humboldt 282 Comment
  UC160987  Physocarpus capitatus Joseph P. Tracy 1911-5-29 3270 Humboldt near Hydesville 60 Comment
  SBBG24465  Picea sitchensis J. W. Howe -Mar-1938 Humboldt [label without specific locality] Comment
  SBBG56401  Picea sitchensis J. W. Howe 1938-3-31 Humboldt near Arcata Comment
  SJSU142  Picea sitchensis Emily D. Smith 1934-8-22 Humboldt between Fortuna & Eureka Comment
  UC1174871  Picea sitchensis P. C. Everett and E. K. Balls 1959-10-25 Humboldt 3 mi s from Ferndale (on Old Coast Road to Capetown) 426 Comment
  UC1585368  Picea sitchensis R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 53 Humboldt 0.5 km s Hwy 255 (on New Navy base Rd, w of Eureka); North Split of Samoa Peninsula Comment
  HSC100690  Pimpinella apiodora Carl C. Marshall Jun 1886 298 Humboldt Bald Hills. Comment
  CAS-BOT-BC73288  Pinus contorta W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  HSC1485  Pinus contorta D. M. Thomson 1965-5-20 65 Humboldt 1.0 mi. S of Samoa. Comment
  RSA246942  Pinus contorta var. contorta Robert F. Thorne, P. Everett 1965-8-7 35217 b Humboldt Samoa Peninsula. 3 Comment
  OBI33911  Pinus jeffreyi David J. Keil 1983-7-2 17315 Humboldt Ca. 4 mi SE of SR 299 along Titlow HIll rd below Horse Mtn Summit Rd Comment
  HSC1510  Pinus lambertiana Francis Winter 1960-5-7 Humboldt Sugar Pine Mtn. 6 mi. W of Hoopa Indian Reservation 1067 Comment
  UC1204918  Pinus muricata unknown July, 1935 Humboldt 1/2 mi or so back from ocean; Moonstone Beach settlement 60 Comment
  UC502910  Pinus muricata Joseph P. Tracy 1929-11-3 8685 Humboldt 1 1/2 mi e and ne Trinidad; Northern Coast Region 60 Comment
  RSA34283  Piperia elegans J. Wendell Howe 1934-7-21 s.n. Humboldt Horse Mountain 1524 Comment
  UC14940  Piperia elegans H. P. Chandler Jun 1901 Humboldt Hupa North Coast Ranges 152 Comment
  JEPS60973  Plagiobothrys reticulatus Joseph P. Tracy 1916-5-31 4691 Humboldt Holmes Flat, along Eel River from South Fork to Scotia Northern Coast Ranges, Eel River 60 Comment
  UC1222219  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-12 17112 Humboldt Prairie Creek at the prairie at Elk Grove; Prairie Creek, Elk Grove Comment
  JEPS60990  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1912-6-9 3680 Humboldt Alton Northern Coast Region 30 Comment
  JEPS61046  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1942-6-15 17142 Humboldt Miranda South Fork of Eel River 121 Comment
  HSC89612  Plantago lanceolata M. Roantree 1985-5-24 61 Humboldt E side of Trinidad Head Comment
  UC1116244  Plantago major Joseph P. Tracy 1942-7-25 17300 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA68979  Plantago maritima F. W. Peirson 1923-7-11 3857 Humboldt Flats north of Eureka. Comment
  POM319565  Platanthera Patricia Wilder 1968-8-21 4391 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC53868  Platanthera dilatata Griswold, Butler 1979-7-10 6348 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC55192  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-8-2 12266 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC98061  Platanthera sparsiflora Cara Witte 2007-7-11 493 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  HSC16799  Platystemon californicus P. N. Slattery 1963-4-27 42 Humboldt Clam Beach Comment
  UC146095  Platystemon californicus Joseph P. Tracy 1908-6-9 2656 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC999830  Plectritis brachystemon S. C. Dyal 1938-6-10 739 Humboldt near Capetown Comment
  SEINET6995402  Plectritis ciliosa Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  HSC21691  Plectritis congesta subsp. brachystemon Jack Rockwell 1962-5-4 51 Humboldt E of road along stream bank. 549 Comment
  HSC65859  Pleuricospora fimbriolata Gail Newton 1980-6-28 674 Humboldt Near Mad River Butte. 1536 Comment
  UC1103803  Pleuropogon refractus Joseph P. Tracy 1926-5-22 7514 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC1152046  Pleuropogon refractus Joseph P. Tracy 1951-6-26 19560 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UCD90242  Poa annua Linda M. Barker 1976-4-30 1399 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC525629  Poa bolanderi Joseph P. Tracy Jul 16 1930-Jul 19 1930 8902 Humboldt McKay Camp South Fork Mt; Northern Coast Ranges 1676 Comment
  HSC73055  Poa compressa M. A. Baker 1980-7-23 3139 Humboldt Near Orleans Mtn. 1859 Comment
  HSC10685  Poa confinis Norman H. Moe 1962-5-17 Humboldt Lanphere's Place. Comment
  HSC10705  Poa douglasii S. J. Moore 1965-5-9 48 Humboldt Dry Lagoon State Park, near entrance. Comment
  UC1103177  Poa douglasii Joseph P. Tracy 1932-5-10 9943 Humboldt s point of the Cape Cape Mendocino Comment
  UC207680  Poa douglasii Joseph P. Tracy 1917-5-30 4798 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  UC589894  Poa douglasii H. S. Yates 1936-6-18 5725 Humboldt near mouth of Little River 4 Comment
  UC34126  Poa howellii Joseph Burtt Davy Jun 8 1899-Jun 1 1901 5360 Humboldt Harris Comment
  UC187251  Poa kelloggii Joseph P. Tracy 1911-6-4 3219 Humboldt along Little River (5 mi from coast); Northern Coast Region 121 Comment
  UCD91542  Poa macrantha J. W. Congdon 1904-7-3 s.n. Humboldt on the Peninsula. City of Eureka. Comment
  SEINET10954258  Poa macrantha Harold E. Parks Parks 4805 Humboldt In sand at sea level, Little River Lagoon. Comment
  HSC40330  Poa pratensis Thomas W. Nelson, Jane P. Nelson 1976-6-22 2854 Humboldt Bog along road to Goat Hill. 1646 Comment
  UC180504  Poa trivialis Joseph P. Tracy 1914-7-4 4521 Humboldt near Korbel (on Bald Mt rd); Northern Coast Ranges 457 Comment
  UCD92111  Poa trivialis Joseph P. Tracy 1950-6-8 18723 Humboldt Bear River Ridge. 609 Comment
  UCD92128  Poa unilateralis Harley P. Chandler 1901-5-1 1140 Humboldt Humboldt Bay. 3 Comment
  JEPS69885  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  HSC17229  Polygala californica Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  RSA506995  Polygonum amphibium var. emersum H. E. Parks 1934-08 5165 Humboldt Hulmboldt County: Big Lagoon, Host of rust Comment
  RSA53801  Polygonum coccineum H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region. Comment
  UC1225800  Polygonum convolvulus Joseph P. Tracy 1947-8-10 17881 Humboldt Eureka 30 Comment
  UC132198  Polygonum convolvulus Joseph P. Tracy 1907-8-20 2600 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC55506  Polygonum davisiae Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5806 Humboldt Trinity Summit North Coast Ranges Comment
  HSC55188  Polygonum douglasii G. L. Clifton, Griswold 1979-8-2 12251 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA167275  Polygonum douglasii subsp. austiniae Joseph P. Tracy 1947-8-24 17923 Humboldt On Box Camp trail, 1/2 mile W of summit. 1677 Comment
  RSA152547  Polygonum kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit Corral Prairie, in wet meadow Comment
  JEPS50635  Polygonum lapathifolium W. L. Jepson 1921-8-7 9334 Humboldt Stone Lagoon Comment
  UC205473  Polygonum minimum Joseph P. Tracy 1919-9-18 5235 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC55514  Polygonum paronychia Harley P. Chandler May, 1901 1157 Humboldt Samoa North Coast Ranges, Humboldt Bay (sandhills) 3 Comment
  UC672951  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1930-7-17 9010 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1052470  Polygonum sachalinense H. E. and S. T. Parks July 1952 24448 Humboldt Hwy 10 s Elk River Bridge Comment
  HSC54719  Polygonum spergulariiforme Overton, Butler 1979-7-26 10094 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  SEINET3404067 Image available Polygonum spergulariiforme Joseph P. Tracy 1947-7-9 17835 Humboldt Horse Mountain, Jeffrey Pine Comment
  RSA46700  Polypodium californicum Doris K. Kildale 1928-2-19 4262 Humboldt Little River near Trindad Comment
  UC275412  Polypodium glycyrrhiza Joseph P. Tracy 1925-11-25 7326 Humboldt near the S Fork Trinity River Valley; Northern Coast Ranges 182 Comment
  UC667949  Polypodium glycyrrhiza Joseph P. Tracy 1936-3-8 14775 Humboldt along S Fork Eel River Miranda 121 Comment
  HSC39949  Polypodium scouleri Linda M. Barker 1976-3-11 1327 Humboldt 3 mi. W of Arcata Comment
  SEINET204933 Image available Polypodium scouleri C. O. Baker 1962-3-22 5 Humboldt 2 miles souh of Trinidad along old 101 highway 91 Comment
  HSC1140  Polypodium scouleri J. W. Johnson 1962-3-9 1180 Humboldt On a bank above the Hunt Lane between the gate and barn Comment
  HSC26462  Polypodium scouleri T. O. Osborne 1970-4-8 16 Humboldt Sugarloaf Rock, Cape Mendocino 61 Comment
  SEINET3111376  Polypodium scouleri Unknown 1969-3-30 Humboldt Humboldt State University; Ecol Project site. Comment
  CAS-BOT-BC233215  Polypogon maritimus Joseph P. Tracy 1930-10-19 9236 Humboldt Eel River, Alton to Fortuna 15 Comment
  UCD91203  Polypogon maritimus A. H. Murphy 1951-6-13 61 Humboldt 2 miles south of Blocksburg. Tooby and Prior Ranch. Comment
  HSC10853  Polypogon monspeliensis David K. Smith 1968-11-20 80 Humboldt About 4 miles SE of Arcata, along Jacoby Creek. Comment
  UCD91219  Polypogon monspeliensis Linda M. Barker 1976-6-1 1552 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET4889908  Polypogon monspeliensis H. Ch 1901-1 1431 Humboldt North Coast Ranges, Klamath River 335 Comment
  JEPS296  Polystichum munitum W. L. Jepson 1932-7-26 16406 Humboldt Bull Creek Comment
  SBBG296  Polystichum munitum H. and M. Dearing 1939-5-27 3454 Humboldt Bishop Pine Lodge, Patricks Pt Comment
  CAS-BOT-BC76662  Polystichum munitum Ira L. Wiggins 1932-6-18 5871 Humboldt On hillside at mouth of Little River. Comment
  SEINET10793992  Polystichum munitum J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13008 Humboldt Leggett; Redwoods River Resort, 75000 Highway 101. Comment
  SEINET4555667 Image available Polystichum munitum Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15049 Humboldt 20 miles north of Eureka. Comment
  HSC69694  Populus trichocarpa R. Kalal 1980-6-8 11 Humboldt Pump Station #1, along the Mad River 14 Comment
  RSA54124  Potamogeton natans Henry M. Pollard 1946-8-16 s.n. Humboldt Near Camp Creek, Orleans region. Comment
  RSA246822  Potamogeton pusillus Robert F. Thorne 1965-9-19 35463 Humboldt Freshwater Lagoon S of Orick 3 Comment
  SEINET11663841  Potamogeton pusillus S. K. Harris 1938-1 808 Humboldt Eel River, near Fernbridge Comment
  CAS-BOT-BC454064  Potamogeton pusillus subsp. pusillus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC18720  Potentilla anserina subsp. pacifica Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  UC154225  Potentilla anserina subsp. pacifica Joseph P. Tracy 1907-7-20 2590 Humboldt near Samoa (region about Humboldt Bay); Northern Coast Region, Region about Humboldt Bay 0 Comment
  SD42346  Potentilla anserina subsp. pacifica Carl B. Wolf 1937-9-12 9326 Humboldt Dry Lagoon State Park Comment
  UCD113697  Potentilla anserina subsp. pacifica D. C. Sumner 1957-4-1 s.n. Humboldt Near Fortuna. Comment
  RSA232639  Potentilla anserina var. grandis Larry E. DeBuhr, Gary D. Wallace 1972-5-22 609 Humboldt On the beach at Prairie Creek. Redwoods Sate Park Comment
  JEPS47215  Potentilla gracilis Joseph P. Tracy 1932-7-10 10387 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC101969  Potentilla gracilis var. fastigiata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 865 Humboldt Patterson Meadows 1566 Comment
  HSC57357  Potentilla gracilis var. fastigiata Overton, Butler 1979-7-26 10053 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC30037  Potentilla gracilis var. gracilis Chesnut and Drew 1888-8-6 Humboldt Redwood Creek Comment
  HSC74648  Prosartes hookeri M. A. Baker 1980-5-17 1211 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC508640  Prosartes hookeri Doris K. Kildale 1926-7-22 2420 Humboldt Metropolitan, woods near Canyon Park Comment
  HSC15462  Prosartes hookeri T. W. Beck 1963-5-10 46 Humboldt Camp Bauer, Korbel Comment
  HSC103987  Prosartes smithii E. R. Fyer 2015-4-29 31 Humboldt Arcata Community Forest 129 Comment
  SBBG982  Prosartes smithii H. and M. Dearing 1933-5-16 256 Humboldt near Weott Comment
  CAS-BOT-BC517505  Prosartes smithii L. R. Abrams 1927-9-1 12061 Humboldt Big Lagoon Comment
  SEINET12050369  Prosartes smithii F. H. Utech 1988-1 88 -284 Humboldt along CA 36 from Bridgeville enroute to Dinsmore Mile Marker 42.00, above Van Duzen River 800 Comment
  SEINET12051380  Prosartes smithii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -288 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC76520  Prunella vulgaris John Demarinis 1981-7-21 878 Humboldt Near Table Bluff 38 Comment
  JEPS62494  Prunella vulgaris var. lanceolata Lincoln Constance 1934-5-24 641 Humboldt South Fork Eel River Bull Creek Region; , Bull Creek Region 121 Comment
  RSA424589A  Prunella vulgaris var. lanceolata Bonnie C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  UC1174866  Prunella vulgaris var. lanceolata P. C. Everett and E. K. Balls 1959-10-25 23961 Humboldt U.S. Hwy 299 to Arcata 14 mi w Willow Creek; w of Willow Creek 502 Comment
  CAS-BOT-BC159978  Prunus emarginata Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC48828  Prunus emarginata Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 42 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC73957  Prunus emarginata Gail Newton 1980-8-10 2012 Humboldt Near Blake Mtn. 1798 Comment
  JEPS44938  Prunus emarginata W. L. Jepson 1902-7-16 2034 Humboldt Trinity Summit 2133 Comment
  UC12753  Prunus emarginata Harley P. Chandler June, 1901 1273 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1066 Comment
  UC902151  Prunus emarginata Joseph P. Tracy 1944-5-20 17473 Humboldt Eureka, on 2nd St. between K and L Sts Eureka 9 Comment
  CAS-BOT-BC357599  Pseudognaphalium stramineum Kenneth Clark 1979-6-30 455 Humboldt Shelter Cove. Dead Man's Gulch 9 Comment
  HSC37672  Pseudognaphalium stramineum R. Sutherland 1976-8-19 8 .19876 Humboldt 259 Comment
  CAS-BOT-BC80115  Pseudotsuga menziesii Doris K. Kildale 1928-4-29 5969 Humboldt Horse Mountain Comment
  CAS-BOT-BC80119  Pseudotsuga menziesii L. B. Kildale 1930-9-21 10219 Humboldt Bluff Creek trail to Fish Lake Comment
  HSC30338  Pseudotsuga menziesii var. menziesii Dale R. Gradek 1974-5-2 34 Humboldt 0.25 mi N of intersection of Dows Prairie Rd. and Grange Rd. Comment
  HSC41283  Pseudotsuga menziesii var. menziesii Brad Klipfel 1974-7-23 473 Humboldt Horse Mountain, NW from the towers Comment
  HSC76291  Pseudotsuga menziesii var. menziesii Denis Kearns 1981-7-23 391 Humboldt Near Whiteys Peak 732 Comment
  JEPS48426  Pseudotsuga menziesii var. menziesii W. L. Jepson 1936-8-7 17858 Humboldt Butte Creek (upper) Bear Buttes, Butte Creek Comment
  SDSU2009  Pseudotsuga menziesii var. menziesii Harvey 1938-8-14 2317 Humboldt U. S 299 Arcata- Willow Creek. Comment
  UC709421  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1941-4-11 16859 Humboldt Willow Creek Canyon; along Trinity Highway 609 Comment
  UCD135129  Pseudotsuga menziesii var. menziesii P. Zinke 1950-8-3 145 Humboldt California Forest and Range Experiment Station. 3 miles south of Harris. Comment
  HSC99408  Pteridium aquilinum var. pubescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 57 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET199671  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-4-28 8549 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  HSC10868  Puccinellia nutkaensis J. A. Waller 1965-5-16 38 Humboldt Humboldt Bay Comment
  HSC17978  Pyrola aphylla Chestnut, Drew 1888-7-12 Humboldt Campbell's Comment
  HSC76595  Pyrola dentata Denis Kearns 1981-6-24 2 Humboldt Near Cedar Camp 1219 Comment
  UC1197577  Pyrola picta Joseph P. Tracy 1933-7-25 12876 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  RSA47117  Quercus chrysolepis var. nana Doris K. Kildale 1926-5-16 1842 Humboldt Horse Mt. Road. 793 Comment
  HSC60100  Quercus garryana M. A. Baker 1977-5-8 271 Humboldt Gray's Falls Comment
  HSC8234  Quercus garryana Francis Winter 1960-5-7 Humboldt On Bair Rd. 4 mi W of Hoopa Indian Reserve 610 Comment
  CAS-BOT-BC105165  Quercus kelloggii Doris K. Kildale 1928-3-31 4384 Humboldt 3 miles N of Gaberville on Redwood Highway Comment
  HSC8259  Quercus kelloggii D. E. Anderson 1961-9-30 1835 Humboldt Comment
  UCD46652  Quercus kelloggii R. N. Raynor 1935-4-15 s.n. Humboldt Fort Seward. Comment
  UCD165093  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 49.5 mi. from Garberville along Alderpoint Rd. near the intersection with Highway 36. (Coordinates and elevation estimated by label maker.) 215 Comment
  HSC55031  Quercus sadleriana Overton, Butler 1979-7-31 11470 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC75961  Quercus sadleriana Overton, Butler 1979-8-2 12593 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC667980  Quercus vacciniifolia Joseph P. Tracy 1935-7-28 14336 Humboldt Head of Brett Hole Northern Coast Ranges, Trinity Summit 1828 Comment
  CAS-BOT-BC104534  Quercus vacciniifolia N. Wynne; M. Peckham; J. Bamesberger 1994-5-6 43 Humboldt on W side of SRF Rd. 6N36, one mile N of intersection with Titlow Rd. Comment
  SEINET10477739  Quercus vacciniifolia Jone 1985-6-6 JONE 113 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy 299 going to horse mt. Found At intersection of titlow rd. And the road to horse mt. Summit. Pinus, arbutus, Quercus chrysolepis, quercus vaccinifolia habitat 1143 Comment
  SEINET13716691  Ranunculus aquatilis Unknown 1913-6-13 4276 Humboldt In a shallow but permanent pond. Near summit of ridge between Van Duzen and Mad Rivers, on Dinsmore's Ranch. Comment
  CAS-BOT-BC379173  Ranunculus aquatilis var. aquatilis Joseph P. Tracy 1937-5-30 15311 Humboldt Larrabee Creek; in shallow pond near Bosworth's 366 Comment
  HSC18117  Ranunculus aquatilis var. diffusus D. E. Anderson 1965-5-15 3712 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC1196241  Ranunculus californicus Joseph P. Tracy 1901-4-14 1024 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  HSC26334  Ranunculus californicus var. californicus Thomas W. Nelson 1971-4-12 376 Humboldt S spit of Humboldt Bay. Comment
  UC303000  Ranunculus occidentalis Joseph P. Tracy 1926-6-20 7618 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC82102  Ranunculus occidentalis var. occidentalis Thomas W. Nelson, Jane P. Nelson 1980-5-25 5266 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  RSA115000  Ranunculus occidentalis var. rattanii E. K. Balls, Lee W. Lenz 1955-5-16 20745 Humboldt 2.7 miles NW of Ettersburg along old Coast Road. 457 Comment
  UC1196245  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1933-7-11 12701 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC98651  Ranunculus orthorhynchus var. platyphyllus Cara Witte 2008-6-9 694 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1454 Comment
  UC1103014  Ranunculus parviflorus Joseph P. Tracy 1948-6-13 18033 Humboldt halfway between Bridgeville and Blocksburg (around a pool); Larrabee Creek 457 Comment
  UC249652  Ranunculus parviflorus Joseph P. Tracy 1922-5-21 6053 Humboldt Blue Lake Northern Coast Ranges (depression by roadside) 30 Comment
  UC1196260  Ranunculus pusillus Joseph P. Tracy 1935-5-25 13845 Humboldt Fort Seward 106 Comment
  UCD97080  Ranunculus repens Linda M. Barker 1976-6-1 1555 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC18182  Ranunculus repens var. repens V. G. Vieira 1963-4-24 7 Humboldt Essex Pond Comment
  HSC39445  Ranunculus repens var. repens Linda M. Barker 1976-6-1 1555 Humboldt 3 mi. W of Arcata Comment
  HSC71213  Ranunculus sardous Thomas W. Nelson, Doris K. Niles 1979-5-19 4696 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC18194  Ranunculus uncinatus var. parviflorus W. F. Nickel 1965-5-15 Humboldt 0.5 mi. E of Arcata on rd. to Arcata Reservoir Comment
  HSC26768  Raphanus raphanistrum Thomas W. Nelson 1970-12-5 317 Humboldt Eureka, 3300 block of Williams St. Comment
  HSC89466  Raphanus sativus P. A. Daly 1986-3-12 104 Humboldt Trinidad Head 61 Comment
  UC1197994  Rhamnus californica Joseph P. Tracy 1934-7-9 13357 Humboldt Dobbyn Creek 152 Comment
  JEPS41952  Rhamnus purshiana W. L. Jepson 1902-7-15 2032 Humboldt Mud Spring to Trinity Summit 1219 Comment
  RSA7816  Rhamnus purshiana Doris K. Kildale 1928-7-1 5304 Humboldt French camp on Orick-Martins ferry road 610 Comment
  RSA2944  Rhododendron macrophyllum C. B. Wolf 1931-8-29 2370 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  UC1173683  Rhododendron occidentale Joseph P. Tracy 1939-7-9 16319 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  UC275301  Rhododendron occidentale R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  HSC54518  Rhododendron occidentale var. paludosum Overton, Butler 1979-7-23 9443 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC56093  Ribes binominatum G. L. Clifton, Griswold 1979-7-31 11794 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA24301  Ribes bracteosum Carl B. Wolf 1941-2-25 9958 Humboldt Freshwater lagoon. 30 Comment
  UCR139068  Ribes bracteosum E. Brower, S. Marubayashi, E. Perry 1997-5-10 055 Humboldt Intersection of Hwy 299 and Redwood Hwy 12 Comment
  HSC100491  Ribes divaricatum Carl C. Marshall Apr 1886 171 Humboldt Vicinity of Humboldt Bay. Comment
  UC902061  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1943-3-21 17412 Humboldt Alton 30 Comment
  HSC99025  Ribes lacustre Cara Witte 2008-7-1 781 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 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
  POM237433  Ribes laxiflorum S. T. Parks 1937-6-4 24004 Humboldt Along Prairie Creek at Valley Green Comment
  HSC65621  Ribes lobbii J. P. Smith, J. O. Sawyer 1973-5-12 6688 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC70324  Ribes lobbii M. A. Baker 1980-6-8 1879 Humboldt Near Buck Flat. 1554 Comment
  HSC103200  Ribes marshallii Jade Paget-Seekins 2010-7-5 34 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  HSC56051  Ribes nevadense G. L. Clifton, Griswold 1979-7-31 11652 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  JEPS49186  Ribes roezlii W. L. Jepson 1902-6-19 1889 Humboldt near Garberville; Ft. Seward Ranch Ridge (= Mail Ridge) 1066 Comment
  CAS-BOT-BC198897  Ribes roezlii var. cruentum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC198899  Ribes roezlii var. cruentum Doris K. Kildale 1926-6-27 2232 Humboldt Little Van Duzen River on Bridgeville-Weaverville Road 640 Comment
  HSC20349  Ribes roezlii var. cruentum Eugene Andreuccetti 1964-5-2 39 Humboldt 5 mi. from Willow Creek on Hwy. 299 Comment
  RSA0024587  Ribes roezlii var. cruentum Lyman Benson 1929-7-19 1872 Humboldt Ridge between Bull Creek and Matole [Mattole] River. Comment
  CHSC19492  Ribes sanguineum B. D. Rogers 1965-4-1 411 Humboldt About 4 miles southeast of Arcata, along Jacoby Creek. 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
  UC1541332 Image available Ribes sanguineum Harold E. Parks 1930-5-25 868 Humboldt Laribee Valley 762 Comment
  UC492209 Image available Ribes sanguineum Joseph P. Tracy 1927-6-12 8155 Humboldt lower slopes Horse Mountain; Northern Coast Ranges 1219 Comment
  CAS-BOT-BC144694  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-3-6 2933 Humboldt Kneeland Prairie 762 Comment
  HSC37844  Ribes sanguineum var. glutinosum Thomas W. Nelson, James Nelson 1976-3-11 2266 Humboldt Beside Eel River just N of terminus of Singley Rd. Comment
  HSC40407  Ribes sanguineum var. glutinosum Linda M. Barker 1976-1-24 1311 Humboldt 3 mi. W of Arcata Comment
  UC492210  Ribes sanguineum var. glutinosum Joseph P. Tracy 1932-8-27 10759 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  UC673258  Ribes sanguineum var. glutinosum Lincoln Constance, Reed C. Rollins 1942-5-11 2866 Humboldt 8 mi e Blue Lake (near summit); North Coast Ranges Comment
  RSA0018238  Ribes sanguineum var. glutinosum Lyman Benson 1929-7-19 1876 Humboldt Mouth of Matole [Mattole] River. Comment
  HSC65697  Ribes sanguineum var. sanguineum J. P. Smith, J. O. Sawyer 1974-6-2 7653 Humboldt 1372 Comment
  UCD102503  Ribes sanguineum var. sanguineum James P. Smith; J. O. Sawyer 1974-6-2 7653 Humboldt location unknown. 1371 Comment
  UC1198919  Ribes viscosissimum Joseph P. Tracy 1942-9-6 17308 Humboldt near McKay; South Fork Mountain 1676 Comment
  CHSC59600  Romanzoffia californica R. N. Raynor 1935-4-8 Humboldt Ft. Seward. Comment
  UC144104  Romanzoffia californica Joseph P. Tracy 1909-5-16 2970 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  UC198651  Rorippa curvisiliqua Joseph P. Tracy 1916-5-31 4693 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, along Eel River 60 Comment
  CAS-BOT-BC147434  Rosa californica Doris Kildale 1931-6-6 10869 Humboldt Gans Prairie, Orick - Weitchpec Road Comment
  HSC32946  Rosa gymnocarpa Thomas W. Nelson, James Nelson 1973-5-28 957 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA2936  Rosa gymnocarpa Carl B. Wolf 1931-8-30 2376 Humboldt 11 miles above Blue Lake on the Lord Ellis Road to Willow Creek 305 Comment
  UC667030  Rosa gymnocarpa Joseph P. Tracy 1936-8-7 15107 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UC914721  Rosa gymnocarpa Ira L. Wiggins 1930-7-22 4695 Humboldt along bank of creek between Blue Lake and Willow Creek; Redwood Creek Comment
  CAS-BOT-BC146824  Rosa nutkana Harley P. Chandler 1901-5-1 1198 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC146835  Rosa nutkana Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC27851  Rosa nutkana Clifton Raymond Chesbrough 1973-6-19 61 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  SEINET4092393  Rosa pisocarpa O. M. Clark 1932-1 782 Humboldt South Eureka. Comment
  UC667036  Rosa pisocarpa Joseph P. Tracy 1934-7-18 13416 Humboldt Grouse Mt. 1432 Comment
  CAS-BOT-BC146500  Rosa pisocarpa subsp. pisocarpa Joseph P. Tracy 1947-7-5 17814 Humboldt Trinity Summit, near Box Camp 1524 Comment
  CAS-BOT-BC146884  Rosa rubiginosa Doris K. Kildale 1927-7-1 3616 Humboldt Alton Hill 30 Comment
  CAS-BOT-BC148224  Rosa spithamea Doris K. Kildale; L. B. Kildale 1930-5-24 9549 Humboldt Hoopa Valley 152 Comment
  UC302102  Rubus laciniatus Joseph P. Tracy 1926-11-7 7828 Humboldt opposite Scotia (along Eel River from South Fork to Scotia); Northern Coast Ranges, along Eel River 60 Comment
  UC1199044  Rubus lasiococcus Joseph P. Tracy 1947-6-26 17746 Humboldt near McKay camp (South Fork Mountain); , near McKay camp 1676 Comment
  HSC19651  Rubus leucodermis Lincoln Constance 1934-5-24 655 Humboldt S Fork Eel River, bordering lower Look Prairie on E. side 122 Comment
  CAS-BOT-BC147240  Rubus parviflorus Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC31795  Rubus parviflorus Steve Selva, Roger Jensen 1974-8-28 98 Humboldt Behind Humboldt State University, Arcata. Comment
  HSC57680  Rubus parviflorus G. L. Clifton, Griswold 1979-7-25 10886 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  JEPS47711  Rubus parviflorus Lincoln Constance 1934-5-31 756 Humboldt Bull Creek Flat South Fork Eel River, Bull Creek Region (along Bull Creek, from w boundary of Park to Grasshpper Peak (Squaw Creek) rd., South Fork Eel River) Comment
  SBBG115409  Rubus parviflorus A. T. Leiser 1980-7-9 Humboldt N of Orick, Hwy 101 reroute, near Redwood Park Comment
  UC1193203  Rubus parviflorus G. W. Tourtillott 1950-8-30 31 Humboldt 1/4 mi e Beale Ranch; Quad. 29C4, e of Beale Ranch 457 Comment
  SEINET4948924  Rubus parviflorus Unknown 1938-8-6 15397 Humboldt Eureka Comment
  SD33957  Rubus parviflorus var. velutinus Doris K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  HSC19690  Rubus spectabilis K. P. St. John 1965-4-3 8 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  HSC96356  Rubus spectabilis Gordon Leppig 1998-3-25 729 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC158792  Rubus ursinus Joseph P. Tracy 1946-8-25 17637 Humboldt Field's Landing, 2 miles above town. 6 Comment
  HSC19693  Rubus ursinus N. D. Dennis 1965-5-5 53 Humboldt 1 mi. N of Trinidad on Hwy. 101 Comment
  HSC19696  Rubus ursinus Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  UCD17845  Rubus ursinus H. Olmo 8-10 May 1962 62- 32 Humboldt California. Humboldt County: 1 mile east of Grizzly Creek Redwoods State Park. Along north bank of Van Duzen River. Comment
  HSC76413  Rudbeckia californica Michael Ericksen 1981-8-21 1082 Humboldt Near Dan East Cabin 1609 Comment
  RSA20785  Rudbeckia occidentalis C. B. Wolf 1937-8-13 9250 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit 1524 Comment
  HSC17586  Rumex acetosella R. I. Bonn 1965-5-7 30 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC55080  Rumex acetosella G. L. Clifton, Griswold 1979-7-31 11715 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC64433  Rumex acetosella J. P. Smith 1971-10-6 4943 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC17583  Rumex acetosella J. E. Lankila 1962-5-14 28 Humboldt W bank of river at Fernbridge Comment
  CAS-BOT-BC421748  Rumex conglomeratus Malcom A. Nobs; S. Galen Smith 1949-8-9 1236 Humboldt On southern side of the town of Blue Lake Comment
  HSC39980  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC433648  Rumex obtusifolius Alice Eastwood 1921-7-21 10656 Humboldt Carlotta Comment
  HSC95362  Rumex salicifolius var. transitorius Andrea Pickart 2002-8-8 200 Humboldt Arcata bottoms, Lanphere Rd. near end 20 Comment
  UC673062  Rupertia physodes Joseph P. Tracy 1935-6-23 13993 Humboldt French Camp Ridge 1066 Comment
  RSA91333  Rupertia physodes F. W. Peirson 1941-7-27 13095 Humboldt Elk Valley Forestry Camp. Comment
  RSA301862  Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 17267 Humboldt [Unspecified] Comment
  UC1103532  Sagina apetala Joseph P. Tracy 1946-6-23 17598 Humboldt roadside near Dan McBride place Kneeland Prairie 762 Comment
  HSC95580  Salicornia depressa Andrea Pickart 2002-7-19 180 Humboldt Arcata Marsh at end of I St. 0 Comment
  UCSB34196  Salicornia pacifica Kearns, Dennis 1979-8-24 Humboldt In mean tide area of Arcata Bay, on periphery near the Arcata Boat Launching Facility at the South end of "I" Street Comment
  CDA15324  Salicornia perennis R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Near Loleta. 0 Comment
  UC1196671  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14268 Humboldt meadows at Water Dog Lakes; Trinity Summit 1828 Comment
  CAS-BOT-BC103813  Salix exigua John H. Thomas 1966-3-19 11483 Humboldt Near Westhaven Drive and highway 101, Trinidad 60 Comment
  CAS-BOT-BC103816  Salix exigua M. S. Jussel 1931-5-2 s.n. Humboldt Eureka Comment
  HSC19948  Salix exigua var. hindsiana H. E. Parks 1931-8-25 1061 Humboldt Blue Slide, Van Duzen River 90 Comment
  CAS-BOT-BC104103  Salix hindsiana Harold E. Parks 1931-5-14 0958 Humboldt Fernbridge, Eel River 10 Comment
  CAS-BOT-BC104106  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01332 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107743  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Bank of Eel River - Fortuna 15 Comment
  CAS-BOT-BC107746  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1225 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  CHSC31280  Salix hookeriana Mark Stopher 1980-3-26 42 Humboldt Adjoining Hwy 101 right of way near Elk River. Comment
  CHSC9654  Salix hookeriana E. L. Smith 1971-8-18 1025 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  CHSC9658  Salix hookeriana E. L. Smith 1971-8-17 1028 Humboldt Between highway and beach at Trinidad. Comment
  HSC19963  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-15 1103 Humboldt Near mouth of the Little River Comment
  HSC90382  Salix hookeriana Jean Hanson 1980-3-8 1 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96368  Salix hookeriana Gordon Leppig 1999-4-15 1121 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS12928  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  JEPS38444  Salix hookeriana Joseph P. Tracy 1918-4-7 4863 Humboldt Strawberry Creek Northern Coast Ranges, Dows Prairie Sand Dunes (at mouth) 6 Comment
  POM106778  Salix hookeriana Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA239712  Salix hookeriana Larry E. DeBuhr 1973-4-23 995 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  UC1196675  Salix hookeriana Joseph P. Tracy 1931-3-26 9305 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC176701  Salix hookeriana Joseph P. Tracy 1913-9-21 4414 Humboldt Humboldt Bay Northern Coast Region (dunes of ocean beach) Comment
  UC469111  Salix hookeriana Joseph P. Tracy 1931-8-23 9619 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470425  Salix hookeriana Joseph P. Tracy 1931-10-3 9710 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC470439  Salix hookeriana Joseph P. Tracy 1931-9-19 9679 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC470441  Salix hookeriana Joseph P. Tracy 1931-5-3 9356 Humboldt near Luffenholz Creek (near ocean); Northern Coast Region, Trinidad 60 Comment
  UC490457  Salix hookeriana Joseph P. Tracy 1932-5-10 9953 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490476  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10344 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UC490509  Salix hookeriana Joseph P. Tracy 1932-3-19 9787 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC492344  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1103 a Humboldt Little River Lagoon Trinidad 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
  UC526715  Salix hookeriana Joseph P. Tracy 1934-6-28 13267 Humboldt Salmon Creek Valley around Humboldt Bay Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley 9 Comment
  UCD111043  Salix hookeriana Linda M. Barker 1976-9-3 1693 Humboldt 3 miles west of Arcata. Comment
  JEPS13097  Salix laevigata Joseph P. Tracy 1935-5-25 13886 Humboldt Dobbyn Creek 152 Comment
  UC275503  Salix laevigata Joseph P. Tracy 1925-11-1 7301 Humboldt Shively, along Eel R. from S. Fork to Scotia Northern Coast Ranges, Eel R., Shively 60 Comment
  UC490516  Salix laevigata Joseph P. Tracy 1932-7-31 10290 Humboldt along Eel River at mouth of Larrabee Creek; North Coast Ranges, Eel River 30 Comment
  UCSB10870  Salix lasiandra Parks, Harold; Parks, Susan 1931-8-15 Humboldt Blue Slide, Van Duzen River 100 Comment
  UC481283  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-5-14 959 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  CAS-BOT-BC125225  Salix lasiandra var. lasiandra Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01206 Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad, elevation approximately sea level Comment
  JEPS13068  Salix lasiandra var. lasiandra Joseph P. Tracy 1921-3-27 5427 Humboldt Korbel; Northern Coast Ranges 30 Comment
  CAS-BOT-BC107621  Salix lasiolepis Doris K. Kildale 1929-3-10 6935 Humboldt Bug Creek - Chaparral Mt. Comment
  CAS-BOT-BC107648  Salix lasiolepis Joseph P. Tracy 1932-10-8 10866 Humboldt Berry's Mt. on Trinity Highway 762 Comment
  CHSC9648  Salix lasiolepis E. L. Smith 1971-8-17 1019 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  HSC20011  Salix lasiolepis J. P. Tracy 1933-5-14 12184 Humboldt Berry's Mt. on Trinity Hwy. 762 Comment
  JEPS12946  Salix lasiolepis Joseph P. Tracy 1931-10-3 9707 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  POM161056  Salix lasiolepis Joseph P. Tracy 1926-9-19 7804 Humboldt Valley of S Yager Creek 762 Comment
  UC1225925  Salix lasiolepis Joseph P. Tracy 1942-7-26 17296 Humboldt near Redwood House; South Yager Creek 609 Comment
  UC275522  Salix lasiolepis Joseph P. Tracy 1924-2-24 6604 Humboldt on S. Fork Eel R. McKee's Mill; Northern Coast Ranges, S. Fork Eel R., McKee's Mill 60 Comment
  UC469431  Salix lasiolepis Joseph P. Tracy 1931-9-27 9690 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel River 15 Comment
  UC471107  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC481175  Salix lasiolepis Harold E. and Susan T. Parks 1931-8-15 1079 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 100 Comment
  UC481337  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC490470  Salix lasiolepis Joseph P. Tracy 1932-9-5 10770 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC506404  Salix lasiolepis Joseph P. Tracy 1932-10-8 10866 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 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
  UC512033  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1326 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  UC512036  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1324 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  CAS-BOT-BC107298  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CHSC9644  Salix lucida subsp. lasiandra E. L. Smith 1971-8-17 1015 Humboldt South fork of Trinity River on Hwy 299 at Sayler. 487 Comment
  RSA273414  Salix lucida subsp. lasiandra Thomas W. Nelson 1976-3-22 2278 Humboldt Along S side of the Eureka Muni Golf Course. Comment
  RSA298153  Salix lucida subsp. lasiandra Thomas W. Nelson 1978-4-23 3888 Humboldt At jct of Copher and Samoa Rds. N of Samoa. Comment
  CAS-BOT-BC125610  Salix melanopsis Doris K. Kildale 1927-5-13 3143 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC125625  Salix melanopsis Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River, Alton to Fortuna 15 Comment
  CAS-BOT-BC125634  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km. south of Alton 20 Comment
  JEPS12970  Salix melanopsis Joseph P. Tracy 1931-9-19 9682 Humboldt Van Duzen River Alton; Northern Coast Region 30 Comment
  SJSU181  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  UC1196570  Salix melanopsis Joseph P. Tracy 1932-7-31 10292 Humboldt at mouth of Larrabee Creek Eel R.; Northern Coast Ranges, Eel R. 60 Comment
  UC1196636  Salix melanopsis Joseph P. Tracy 1932-5-1 9845 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC212983  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC469449  Salix melanopsis Joseph P. Tracy 1931-5-3 9348 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC469459  Salix melanopsis Joseph P. Tracy 1931-9-26 9700 Humboldt Redwood Creek at Berrys; Northern Coast Ranges, Redwood Creek 274 Comment
  UC481829  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 284 Humboldt 6 mi. s. Alton (e. of Redwood Hwy.) Comment
  UC511986  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1242 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  UC519372  Salix melanopsis Joseph P. Tracy 1933-6-7 12514 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC55405  Salix melanopsis J. P. Tracy 1901-8-2 1242 Humboldt Van Duzen R. bar near Hydesville; Van Duzen R. 91 Comment
  CAS-BOT-BC129207  Salix piperi Doris K. Kildale 1927-5-15 3291 Humboldt Mattole River Valley Comment
  CAS-BOT-BC129209  Salix piperi Doris K. Kildale 1929-2-28 6950 Humboldt Essex - Mad River Comment
  CAS-BOT-BC129162  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay, near sea level Comment
  CAS-BOT-BC129175  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC56194  Salix scouleriana Gilbert Muth 1979-8-1 12137 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC96596  Salix scouleriana Gordon Leppig 2003-2-22 1814 Humboldt Eureka Slough, NE corner of log pond 3 Comment
  RSA47090  Salix scouleriana Doris K. Kildale 1926-9-9 2687 Humboldt Low gap of Mod River. Comment
  UC481259  Salix scouleriana Harold E. Parks 1931-5-20 994 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  HSC102510  Salix sitchensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1495 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC38130  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-23 3281 Humboldt Van Duzen River at Grizzley Creek Comment
  HSC90749  Salix sitchensis Jean Hanson 1980-3-8 22 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96575  Salix sitchensis Gordon Leppig 2003-2-20 1805 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  JEPS14775  Salix sitchensis Joseph P. Tracy 1933-3-19 10930 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  UC144108  Salix sitchensis Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1600860  Salix sitchensis Joseph P. Tracy 1933-10-8 13086 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  UC173584  Salix sitchensis Joseph P. Tracy 1935-7-24 14187 Humboldt Trinity Summit near Ranger Station; Trinity Summit 1828 Comment
  UC481385  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  UC506372  Salix sitchensis Joseph P. Tracy 1933-5-7 12154 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC1225921  Salix tracyi Joseph P. Tracy 1942-4-26 17071 Humboldt near Blue Lake, along Mad River 15 Comment
  RSA24053  Sambucus callicarpa C. B. Wolf 1941-2-22 9918 Humboldt Along Redwood Highway 2.8 miles south of Patricks Point State Park 30 Comment
  JEPS86686  Sambucus mexicana L. R. Heckard with T. I. Chuang 1990-7-15 6768 Humboldt South Fork Mountain Rd. ca 11 mi n Hwy 36 (near Mad River jct.) 1740 Comment
  HSC57005  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-24 9591 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC3972  Sambucus racemosa var. racemosa S. R. Johnson 1965-3-28 32 Humboldt 2 mi. N of Luffenholtz Beach. Comment
  HSC49243  Sanicula arctopoides Sheila Logan 1978-4-7 5 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  UCR39788  Sanicula arctopoides Kenneth Clark 1981-5-24 1392 Humboldt North Coast, Abalone Point, 'Point Delgada Q. 15 Comment
  HSC89551  Sanicula arctopoides Mike Roantree 1985-4-28 13 Humboldt N side of Trinidad Head, on coastal buff slope below trail Comment
  UC1541386  Sanicula arctopoides H. E. Parks May 1934 4327 Humboldt Trinidad, Egg Point Egg Point; Trinidad, Egg Point Comment
  UC154131  Sanicula bipinnatifida Joseph P. Tracy 1909-8-1 3056 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC21627  Sanicula bipinnatifida Jack Rockwell 1962-4-29 41 Humboldt W bank Redwood Creek, vicinity Hwy. 299 549 Comment
  HSC48062  Sanicula crassicaulis Thomas W. Nelson 1978-4-23 3886 Humboldt N of Samoa Comment
  UC642273  Sanicula graveolens Joseph P. Tracy 1932-7-12 10465 Humboldt Trinity Summit, Head of Brett Hole Brett Hole; Trinity Summit, Brett Hole 1828 Comment
  POM160882  Sanicula graveolens Joseph P. Tracy 1926-5-30 7520 Humboldt Willow creek canyon, local in serpentine formation near Ruby Cr. 610 Comment
  UC642339  Sanicula tracyi Joseph P. Tracy 1929-7-4 8614 B Humboldt French Camp Ridge 1066 Comment
  HSC96245  Sanicula tuberosa M. Lindquist, C. Riley 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on NF 1 1205 Comment
  UC154088  Sanicula tuberosa Joseph P. Tracy 1908-6 2825 Humboldt Northern Coast Ranges, Buck Mountain Buck Mountain; Northern Coast Ranges, Buck Mountain 1219 Comment
  UC1239688  Satureja douglasii Joseph P. Tracy 1912-7-4 3733 Humboldt near Hydesville; Northern Coast Region 60 Comment
  SEINET3411470 Image available Saxifraga mertensiana Lincoln Constance, Reed C Rollins 1942-5-11 2869 Humboldt Three miles W of East Fork of Willow Creek Comment
  RSA0101646  Sceptridium multifidum Robert F. Thorne, Percy Everett 1965-8-7 35230 a Humboldt Big Lagoon. 3 Comment
  HSC7442  Schoenoplectus americanus R. L. Jarvis 1962-4-29 37 Humboldt Stone Lagoon, 3 mi. S of Orick 0 Comment
  HSC79388  Schoenoplectus americanus Kenneth Clark 1980-5-10 651 Humboldt Shelter Cove, western beach of Point Delgada at 10 ft. above high tide Comment
  CHSC84708  Schoenoplectus pungens L. P. Janeway 2003-7-27 7932 Humboldt North Coast. East shore of Big Lagoon, on north side of mouth of Tom Creek. 2 Comment
  UC1541346  Scirpus acutus var. occidentalis Harold E. Parks Aug 1934 5156 a Humboldt Dry Lagoon Comment
  JEPS79980  Scirpus cernuus Joseph P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  UC183685  Scirpus cernuus J. P. Tracy 1900-5-28 816 Humboldt immediate vicinity Eureka; vicinity Eureka 0 Comment
  UC198641  Scirpus cernuus Joseph P. Tracy 1917-6-10 4821 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  CDA39124  Scirpus maritimus Gordon Leppig 1999-10-25 1268 Humboldt State Hwy 101, mile marker 61.40 Comment
  UC184186  Scirpus microcarpus Joseph P. Tracy 1914-9-13 4628 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  UCSB55386  Scirpus microcarpus Wolf, Carl 1937-9-11 Humboldt Redwood Highway, 3 mi. N of Orick at Davison's Ranch; on Prairie Creek 60 Comment
  HSC66221  Scoliopus bigelovii N. J. Miller 1977-3-5 1 Humboldt Camp Bauer Park, 100 yds. E of baseball field, 0.25 mi. NE of Korbel 58 Comment
  UC275519  Scoliopus bigelovii Joseph P. Tracy 1924-3-9 6615 Humboldt Lawrence Creek near Kneeland Prairie; Northern Coast Ranges, Lawrence Creek 609 Comment
  UC1011940  Scrophularia californica F. W. Pennell and J. P. Tracy 1940-7-6 26081 b Humboldt w Lolita (Table Bluff) 1 Comment
  HSC79542  Scrophularia californica Kenneth Clark 1980-5-10 630 Humboldt Shelter Cove, lower alluvial terrace of Dead Man's Gulch 9 Comment
  POM126380  Scutellaria antirrhinoides Chesnut, E. R. Drew 1888-7-10 s.n. Humboldt Jarnigan s. Comment
  UC667081  Sedum laxum subsp. heckneri Joseph P. Tracy 1935-7-30 14363 Humboldt Salmon Summit 1767 Comment
  HSC44072  Sedum laxum var. heckneri Thomas W. Nelson, Jane Nelson 1977-6-19 3456 Humboldt W side of Middle Peak of Mt. Lassic group 1768 Comment
  CAS-BOT-BC63826  Sedum spathulifolium Elizabeth Parsons Hawyer 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC48309  Sedum spathulifolium var. spathulifolium R. Sutherland 1978-4-22 1 .22478 Humboldt Along King's Crest Trail 1098 Comment
  HSC70962  Sedum spathulifolium var. spathulifolium Thomas W. Nelson 1977-6-15 3456 Humboldt Along Titlow Hill Rd., 3/4 mi. S of junction with Hwy. 299 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
  UC211248  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt near Korbel; Northern Coast Ranges 60 Comment
  UC519319  Selaginella oregana Joseph P. Tracy 1933-5-18 12196 Humboldt Mad River, near Blue Lake. Rock ledges on river bank 15 Comment
  HSC98958  Senecio integerrimus var. major Cara Witte 2008-7-28 950 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  UC427870  Senecio integerrimus var. major H. E. Parks and J. P. Tracy 1930-5-25 879 Humboldt Laribee Valley Comment
  CDA7634  Senecio jacobaea E. C. Whitney 1966-8-25 Humboldt South side of mouth of Canyon Creek, Simpson Lumber Company property, ca. 6 miles north of Korbel. 0 Comment
  UCD135616  Senecio minimus Linda M. Barker 1976-8-2 1677 Humboldt 3 miles west of Arcata. Comment
  UCD135607  Senecio minimus R. Tofsrud 1949-7-1 s.n. Humboldt Ferndale, Wildcat grade. Comment
  UC175387  Senecio sylvaticus J. P. Tracy 1907-6-20 2571 Humboldt immediate vicinity Eureka 0 Comment
  UCD135752  Senecio sylvaticus W. L. Colwell 1955-10-1 30 Humboldt Brush Mountain. 1066 Comment
  HSC6130  Senecio vulgaris R. D. Modafferi 1965-3-14 9 Humboldt 1.3 mi. S of Trinidad on old Hwy. 101 305 Comment
  SEINET7881647 Image available Senecio vulgaris H. E. Parks, S. T. Parks 1934-1 24234 Humboldt Spruce Cove, Trinidad 61 Comment
  IRVC3682  Sequoia sempervirens R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  NY64469  Sequoia sempervirens J. D. Mastrogiuseppe 11 1966 s.n. Humboldt Founder's Grove, Humboldt Redwoods State Park Comment
  SD33  Sequoia sempervirens Charlotte M. Wilder 1929-1 Humboldt Carlotta Comment
  UC519300  Sequoia sempervirens Joseph P. Tracy 1930-1-1 Humboldt headwaters Little River; North Coast Ranges Comment
  UC55657  Sequoia sempervirens J. P. Tracy 1901-8-11 1277 Humboldt immediate vicinity of Eureka 0 Comment
  SEINET10612372  Sequoia sempervirens Joseph P. Tracy 1940-10-17 Tracy 16770 Humboldt Dyerville 49 Comment
  UC180191  Sericocarpus oregonensis subsp. oregonensis Joseph P. Tracy 1914-9-6 4620 Humboldt Bald Mountain, between High Prairie and Snow camp Bald Mountain 1066 Comment
  UC212874  Setaria pumila Joseph P. Tracy 1919-9-13 5193 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC92497  Sherardia arvensis W. L. Jepson 1934-5-7 Humboldt Buckeye Praire, Bull Creek Comment
  HSC16035  Sidalcea diploscypha Lincoln Constance 1934-5-23 613 Humboldt SW slope, upper end of Look Prairie, S Fork Eel River, Bull Creek region 366 Comment
  CAS-BOT-BC205575  Sidalcea malachroides Alice Eastwood; John Thomas Howell 1937-6-23 4855 Humboldt 8 miles from Korbel on road to Maple Creek Comment
  HSC16012  Sidalcea malachroides J. P. Tracy 1936-5-17 14812 Humboldt Fickle Hill, 6 mi. SE of Arcata. 610 Comment
  RSA33405  Sidalcea malachroides Doris K. Kildale 1927-7-2 s.n. Humboldt Lord (?) Ellis Road, near Korbel Comment
  UC1197965  Sidalcea malachroides Joseph P. Tracy 1933-7-21 12819 Humboldt between Van Duzen Yager Creek (Redwood House); between Van Duzen and Yager Creek, Redwood House 762 Comment
  UC668137  Sidalcea malachroides Joseph P. Tracy 1938-6-15 15938 Humboldt vicinity Carlotta; vicinity of Carlotta 30 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
  UC176988  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3595 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  UC902193  Sidalcea malviflora subsp. patula Joseph P. Tracy 1946-5-30 17546 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House); e of Carlotta 60 Comment
  HSC104338  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 9 Humboldt McKinleyville; Dow's Prairie, near Arcata Airport 61 Comment
  POM160836  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dows Prairie 61 Comment
  HSC56404  Sidalcea oregana subsp. spicata Griswold, Butler 1979-7-11 7000 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  RSA95266  Sidalcea oregana subsp. spicata F. W. Peirson 1923-7-11 3778 Humboldt Along road 7 miles north of Arcata. Comment
  HSC103772  Silene bolanderi M. R. Mesler 2014-6-4 1634 Humboldt Burr Valley Road near Dinsmore 1012 Comment
  CDA24098  Silene californica T. C. Fuller 1958-6-17 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC76246  Silene campanulata subsp. glandulosa Denis Kearns 1981-6-24 1 Humboldt Near Cedar Camp 1219 Comment
  HSC98675  Silene campanulata subsp. glandulosa Cara Witte 2007-6-26 353 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1388 Comment
  UC183591  Silene campanulata subsp. glandulosa Joseph P. Tracy 1913-6-15 4140 Humboldt near summit of ridge between Van Duzen and Mad Rivers (on Dinsmore's Ranch); Northern Coast Ranges, btw Van Duzen and Mad Rivers 1066 Comment
  CAS-BOT-BC384424  Silene coronaria Philip A. Munz 1952-6-27 17799 Humboldt Boise Creek Public Camp west of Willow Creek 365 Comment
  JEPS23246  Silene hookeri Joseph P. Tracy 1939-5-14 16283 Humboldt lower foothills of nw slope Buck Mountain 914 Comment
  SEINET11944375  Silene hookeri J. P. Tracy 1950-1 18880 Humboldt Burr Valley Road, on NW slope of Buck Mountain Comment
  RSA29073  Silene hookeri subsp. bolanderi Lincoln Constance, A. A. Beetle 1940-5-17 2612 Humboldt Edge of Quercus Garryana grove, rocky knolls on N slope. McClellan Mtn, near Eureka 823 Comment
  CAS-BOT-BC389051  Silene laciniata subsp. californica J. Clausen 1932-9-17 676 Humboldt On a roadbank between Willow Creek and Redwood Creek 304 Comment
  CAS-BOT-BC389060  Silene laciniata subsp. californica Lincoln Constance; Alan A. Beetle 1940-5-16 2610 Humboldt Coastal bluffs above Alton Comment
  CAS-BOT-BC364798  Silybum marianum Doris K. Kildale 1926-7-14 2376 Humboldt Trinidad Comment
  HSC91874  Sisyrinchium californicum E. Mackey 1986-5-13 Humboldt Patrick's Point State Park Comment
  UC1197798  Smilacina racemosa Joseph P. Tracy 1914-5-17 4474 Humboldt Cumens claim Northern Coast Region, region about Humboldt Bay (on ridge between Ryans Slough and Freshwater Creek) 304 Comment
  JEPS12064  Solanum furcatum Joseph P. Tracy 1940-10-5 16749 Humboldt Trinidad, near boat landing Trinidad 9 Comment
  HSC55669  Solanum parishii Overton, Butler 1979-7-25 9873 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC21312  Solanum parishii D. E. Anderson 1965-6-1 3778 Humboldt Along Friday Ridge Rd. about 3 mi. NE of its Jct. with Titlow Hill Rd. 1067 Comment
  UCD126960  Solanum triflorum Luther Jones 1962-8-10 s.n. Humboldt King River Valley, northwest of Orovada. (Nevada). Comment
  SEINET11801714  Solidago canadensis var. salebrosa J. P. Tracy 1948-1 18210 Humboldt Trinity Summit, meadow at Box Camp 1463 Comment
  HSC58209  Solidago elongata Walter Overton 1979-8-1 12328 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC67892  Solidago elongata J. P. Smith 1973-5-26 6848 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1199318  Solidago elongata Joseph P. Tracy 1921-8-21 5943 Humboldt mouth South Fork of Trinity (near Willow Creek, Trinity River Valley); Northern Coast Ranges, Trinity River Valley, mouth South For 152 Comment
  UC604624  Solidago elongata Joseph P. Tracy 1938-8-7 16103 Humboldt 5 mi n Garberville; South Fork of Eel River at mouth of Dean Creek 121 Comment
  CAS-BOT-BC365435  Solidago elongata Doris K. Kildale 1925-8-8 2459 Humboldt Mouth of Bull Creek Comment
  CHSC109579  Solidago spathulata B. Castro; L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site: on other side of South Spit Road from the Humboldt Bay mudflats. 2 Comment
  UC1409170  Solidago spathulata Robert F. Thorne and P. Everett 1965-8-5 35164 Humboldt Samoa Dunes 3 Comment
  UC164789  Sonchus oleraceus J. P. Tracy 1903-8-2 1926 Humboldt immediate vicinity Eureka 0 Comment
  HSC67888  Sonchus oleraceus J. P. Smith 1973-5-26 6862 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC23681  Sorbus scopulina J. O. Sawyer 1970-6-26 2302 Humboldt 1860 Comment
  CAS-BOT-BC236543  Sorghum halepense Henry M. Pollard 1945-9-4 s.n. Humboldt Nera Camp Creek, east side of Klamath River Comment
  RSA85195  Sparganium angustifolium subsp. emersum F. W. Peirson 1923-7-11 3642 Humboldt 20 miles north of Eureka. Comment
  UCSB25395  Sparganium emersum Keefe, Joseph 1967-7-8 Humboldt East side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka 6 Comment
  CDA776  Sparganium emersum subsp. emersum M. K. Bellue 1932-9-28 Humboldt Arcata. Swale, edge of marsh. 0 Comment
  UC14919  Sparganium erectum subsp. stoloniferum Hattie F. Tracy 1901-6-26 1216 Humboldt Loleta 15 Comment
  RSA640443  Spartina Avis Keedy 1988-9-18 8 Humboldt On Jolly Giant Creek near mouth. Arcata Salt Marsh Project. Comment
  LA39194  Spartina foliosa W. A. Silveus; 1938-7-10 2966 Humboldt Eureka Comment
  SJSU7904  Spartina spartinae H. T. Harvey 1977-7-5 599 Humboldt tidal salt marsh, Elk River Spit, southerly outskirts of Eureka, Humboldt Bay Comment
  HSC4241  Spergula arvensis S. R. Johnson 1965-3-14 2 Humboldt 1.5 mi N of Luffenholtz Beach Comment
  CAS-BOT-BC390614  Spergularia rubra Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CDA3442  Spergularia rubra T. C. Fuller 1958-6-17 599 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC4252  Spergularia rubra Lincoln Constance 1934-6-11 847 Humboldt Bull Creek region, trail along E bank of S Fork of Eel, N Dyerville Flat Comment
  HSC97923  Spiraea douglasii Cara Witte 2007-6-19 291 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  HSC55605  Spiraea splendens var. splendens Overton, Butler 1979-7-23 9444 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  JEPS64512  Spiranthes romanzoffiana W. L. Jepson 1921-8-11 9412 Humboldt Big Lagoon Comment
  UC1196402  Spiranthes romanzoffiana Doris Kildale Aug 1925 Humboldt Waterdog Lake Trinity Summit 1889 Comment
  SEINET5196066  Stachys ajugoides Unknown 2002-8-22 87 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  UC1222862  Stachys ajugoides var. rigida Joseph P. Tracy 1950-6-8 18761 Humboldt near Petrolia (w slope of hill, leading from the coast toward town, hills between town and Ocean); Domingo Hill Comment
  UC668220  Stachys ajugoides var. rigida Joseph P. Tracy 1938-8-21 16131 Humboldt in front of s end Stone Lagoon (along coast); Dry Lagoon 3 Comment
  UCLA71110  Stachys ajugoides var. rigida C. Epling Aug 1933 Humboldt near Big Tree Comment
  UCLA71124  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park Comment
  HSC12371  Stachys chamissonis Steve Dorei 1970-10-14 99 Humboldt Big Lagoon Comment
  POM301655  Stachys chamissonis Carl B. Wolf 1941-7-28 11087 Humboldt between the redwood highway and Crannell. 8 Comment
  HSC38526  Stachys rigida D. E. Anderson, J. P. Smith 1971-6-18 - 1070 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  HSC34274  Stachys rigida var. rigida K. Irwin 1975-8-13 Humboldt Grogans Hole area Comment
  UCD126043  Stachys rigida var. rigida Joseph P. Tracy 16-19 Jul 1930 9012 Humboldt South Fork Mountain; opening in fir forest nera McKay Camp. 1676 Comment
  HSC59679  Stellaria media George Kirn 1977-10-14 Humboldt Eureka, 6th and L St. 12 Comment
  HSC99075  Stellaria nitens C. Witte 2007-5-10 16 Humboldt Along National Forest 1, near Kinsey Ridge. .2 miles south of intersection with 5N04. 1451 Comment
  HSC6230  Stephanomeria virgata John Warner Hosking 1968-10-10 Humboldt Hwy. 299, 30 mi. W of Willow Creek Comment
  POM174066  Stephanomeria virgata Joseph P. Tracy 1918-9-29 5104 Humboldt S Fork Eel River, 4 miles above the mouth. 61 Comment
  HSC68958  Stipa lemmonii Jacqueline Greenleaf 1980-7-16 251 Humboldt Near Buck Mtn. 1250 Comment
  HSC73045  Stipa lemmonii M. A. Baker 1980-7-19 3004 Humboldt Near Bret Hole. 1814 Comment
  HSC70374  Stipa occidentalis var. californica M. A. Baker 1980-6-7 1781 Humboldt Near Brush Mtn. 1128 Comment
  HSC73750  Streptanthus tortuosus M. A. Baker 1980-7-15 2942 Humboldt Near Whiting Ridge. 1341 Comment
  HSC57631  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-25 10783 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC74132  Streptanthus tortuosus var. tortuosus R. York 1980-5-23 612 Humboldt Near Buck Mtn. 1524 Comment
  HSC54897  Stuckenia filiformis subsp. alpina G. L. Clifton, Griswold 1979-7-25 10957 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  HSC58360  Swertia radiata Overton, Butler 1979-8-2 12712 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA134176  Symphoricarpos albus var. laevigatus P. C. Everett, E. K. Balls 1959-10-25 23959 Humboldt 14 miles W of Willow Creek on Hwy 299 to Arcata. Comment
  UC1239538  Symphoricarpos mollis Joseph P. Tracy 1935-6-23 13998 Humboldt French Camp Ridge 1066 Comment
  UC602516  Symphoricarpos mollis Joseph P. Tracy 1930-7-16 8956 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC99163  Symphyotrichum chilense Carl B. Wolf 1927-8-22 808 Humboldt Along the hills near teh ocean 1 mile south of Orick. Comment
  CAS-BOT-BC99167  Symphyotrichum chilense L. R. Abrams 1927-9-1 12063 Humboldt unspecified Comment
  UC1222988  Symphyotrichum chilense Joseph P. Tracy 1950-9-10 19362 Humboldt 1/2 mi s, 1 mi inland from Cape Mendocino Capetown; Cape Ridge 60 Comment
  UC637117  Symphyotrichum subspicatum Edward Lee 1934-8-17 1150 Humboldt 35 mi n of, (e shore of Big Lagoon) Eureka; Big Lagoon 3 Comment
  UC223712  Symphyotrichum subspicatum Elmer I. Applegate 1923-9-13 3992 Humboldt Stone Lagoon, (along seashore, edge of redwoods) Comment
  SEINET11071711 Image available Symphytum asperum Joseph P. Tracy 1943-1 17448 Humboldt Near Iverson Dairy Ranch, Arcata Comment
  RSA168800  Symphytum asperum Joseph P. Tracy 1943-10-3 17448 Humboldt Near Iverson dairy ranch, Arcata. Comment
  HSC21156  Synthyris cordata D. E. Anderson 1962-3-4 1928 Humboldt About 2 mi. S of Trinidad Comment
  HSC89432  Synthyris reniformis P. A. Daly 1984-5-8 11 Humboldt Trinidad Head 61 Comment
  UC168958  Synthyris reniformis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5749 Humboldt Trinity Summit; North Coast Ranges Comment
  HSC21150  Synthyris reniformis R. D. Modafferi 1965-3-13 13 Humboldt 1.2 mi. N of Trinidad on Trinity St. 0 Comment
  HSC21153  Synthyris reniformis D. E. Anderson 1964-2-23 2905 Humboldt Near Indian Creek on Kneeland-Bridgeville Rd. Comment
  UCR48591  Tanacetum douglasii R. D. Goeden, Don W. Ricker 1987-9-2 870902- 17 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  UC581790  Tanacetum vulgare Joseph P. Tracy 1929-10-1 8675 Humboldt Eureka 15 Comment
  UC502916  Taxus brevifolia Joseph P. Tracy 1927-3-27 7866 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  CHSC1684  Tellima grandiflora D. Stover 1929-5-11 Humboldt Redwoods. Comment
  JEPS49699  Tellima grandiflora Milo S. Baker 1923-7-24 Humboldt near Carlotta (Wilder's Ranch) Comment
  UCD170789  Tellima grandiflora Gordon Leppig; Sylvia Leppig and Kai Neander 1998-5-6 745 Humboldt Rt. 101. Overlooking Big Lagoon. 40 Comment
  UC162828  Thalictrum occidentale Joseph P. Tracy 1905-4-2 2154 Humboldt now Arcata; Northern Coast Region, region about Humboldt Bay 0 Comment
  RSA259571  Thermopsis macrophylla var. agnina Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-15 2000 Humboldt Growing on Serpentine outcrop at Franch Camp, Bald Hills Comment
  HSC92244  Thermopsis macrophylla var. macrophylla Clare Golec 1995-7-6 Humboldt 701 Comment
  RSA75601  Thermopsis robusta Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  CAS-BOT-BC81312  Thuja plicata Dr. A. Kellogg; W. G. W. Harford 1868-9 933 Humboldt unspecified Comment
  CAS-BOT-BC81318  Thuja plicata Carl B. Wolf 1927-8-29 1192 Humboldt 7 mi. S. of Ferndale and Capetown, Bear River Ridge--Mt. Glen Comment
  HSC31501  Thuja plicata Steve Selva, Roger Jensen 1974-8-27 86 Humboldt Along Hwy. 299 4.5 mi. E of Blue Lake Comment
  UCD134110  Thuja plicata H. E. Parks 1932-7-25 01139 Humboldt :'Camp 21', Hammond Lumber Company, Trinidad. 152 Comment
  HSC100464  Thysanocarpus curvipes Carl C. Marshall Apr 1887 370 Humboldt Hoopa Valley. Comment
  UC183553  Thysanocarpus curvipes Joseph P. Tracy 1913-6-11 4092 Humboldt in valley of Van Duzen River opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River, Buck Mt. 762 Comment
  HSC99404  Tiarella trifoliata var. unifoliata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 53 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 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
  POM274694  Tiarella trifoliata var. unifoliata Lyman Benson 1928-7-11 454 Humboldt Bull Creek Flat. Dyerville. Seaward N Coast mt range. Bull Creek, S. Fork Eel River. 61 Comment
  RSA191949  Tiarella trifoliata var. unifoliata R. F. Thorne 1957-9-2 18998 Humboldt Burlington State Park, just S of Weott. Comment
  SD88373  Tiarella trifoliata var. unifoliata Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville Comment
  HSC103111  Tofieldia glutinosa M. Mesler 2010-7-15 834 Humboldt Near Blake Mtn, FS rd N01 off rd 4N12 Comment
  HSC21164  Tonella tenella D. E. Anderson 1963-5-18 2452 Humboldt Near junction of New and Trinity Rivers Comment
  HSC97505  Tonella tenella Cara Witte 2007-5-22 74 Humboldt Cold Spring. 0.5 miles south of Titlow Hill. 1422 Comment
  RSA80427  Tonella tenella Margaret Stason 1938-4-14 12410 Humboldt Few miles east of Arcata on Weaverville Road. Comment
  UC1197063  Torilis arvensis subsp. arvensis Mrs. Archie Cathey July 1933 Humboldt near Miranda (at Cathey Ranch) 304 Comment
  CAS-BOT-BC169181  Toxicodendron diversilobum Doris K. Kildale 1928-5-31 5114 Humboldt Chalk Mountain Comment
  JEPS63936  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2000 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
  SEINET10953093 Image available Tracyina rostrata Joseph P. Tracy 1916-6-20 Tracy 4735 Humboldt Alder Point, on warm grassy slopes. 305 Comment
  BLMAR277  Trientalis latifolia Jennifer Anthony-Wheeler 1999-7-30 277 Humboldt Headwaters Forest Reserve, growing in shaded places esp woodlands 548 Comment
  HSC45274  Trientalis latifolia Brad Klipfel 1973-4-28 8 Humboldt Along Korbel to Maple Creek Rd., Canyon Creek Comment
  RSA69006  Trientalis latifolia F. W. Peirson 1923-7-9 s.n. Humboldt first summit on road between coast and Eel River Comment
  HSC71468  Trifolium albopurpureum J. P. Smith, J. O. Sawyer 1973-5-12 6676 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  SEINET12157031  Trifolium albopurpureum J. P. Tracy 1948-1 17989 Humboldt W side of top of Spruce Grove Ridge near Harris Comment
  UC169303  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1912-6-9 3674 Humboldt Alton Northernb Coast Ranges, Humboldt Bay Comment
  UC1223381  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1933-5-20 12234 Humboldt s the point (mouth of Domingo Creek); Cape Mendocino Comment
  SBBG122678  Trifolium arvense J. Dittes, J. Guardino 2003-6-7 2003 -65 Humboldt entrance rd to Aikens Crk Cmpgrd, ca. 4.1 air-mi NE of confluence of Trinity River and Klamath River, ca. 0.3 air-mi NW of confluence of Klamath River and Aikens Crk 106 Comment
  UC1223509  Trifolium barbigerum Joseph P. Tracy 1936-6-9 14883 Humboldt Bear River Ridge 609 Comment
  UC249524  Trifolium bifidum var. bifidum Joseph P. Tracy 1922-4-30 5992 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1197059  Trifolium bifidum var. decipiens Joseph P. Tracy 1925-8-9 7226 Humboldt near Miranda (Salmon Creek); Northern Coast Ranges 91 Comment
  UC495643  Trifolium bifidum var. decipiens Joseph P. Tracy 1927-6-18 8186 Humboldt betw Petrolia and the ocean (hills); Northern Coast Ranges 152 Comment
  HSC45172  Trifolium dichotomum R. Sutherland 1978-4-23 32 .23478 Humboldt Kinsey Ridge 640 Comment
  HSC15116  Trifolium dubium Harvey Doerksen 1962-5-8 18 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  UC1223469  Trifolium dubium Joseph P. Tracy 1948-6-10 180066 Humboldt w Trinidad (beach) 3 Comment
  HSC45106  Trifolium dubium R. Sutherland 1978-5-16 6 .16578 Humboldt 157 Comment
  HSC97569  Trifolium eriocephalum subsp. eriocephalum Cara Witte 2007-6-7 225 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  UC495650  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8769 1/2 Humboldt Larrabee VAlley Northern Coast Ranges 701 Comment
  UC495653  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-7-6 8835 C Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC100534  Trifolium fucatum Carl C. Marshall Mar 1886 18 Humboldt Hills. Comment
  HSC79552  Trifolium fucatum Kenneth Clark 1980-4-18 573 Humboldt 350 yards SE of Dead Man's Gulch (Point No Pass) 8 Comment
  UCD109053  Trifolium fucatum W. Williams 1951-1 s.n. Humboldt Humboldt County. Comment
  RSA90948  Trifolium fucatum var. fucatum F. W. Peirson 1926-7-12 7032 Humboldt Orick Comment
  HSC59590  Trifolium incarnatum Rick Lindquist 1979-4-9 7 Humboldt Arcata, St. Louis Rd., 0.1 mi. N of U.S. Hwy. 101 overpass on Hwy. embankment 15 Comment
  POM214886  Trifolium longipes subsp. elmeri Joseph P. Tracy 1932-7-13 10525 Humboldt Trinity Summit, Corral Prairie. Comment
  HSC92107  Trifolium macraei Sydney Carothers 1995-6-13 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC1223360  Trifolium macraei Joseph P. Tracy 1936-5-30 14841 Humboldt Samoa Sand Dunes Comment
  HSC89906  Trifolium macraei Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata. Just N of the Hutton-Fernstrom Root border. Comment
  UC1197237  Trifolium macraei Joseph P. Tracy 1901-5-18 1098 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  HSC71464  Trifolium microcephalum J. P. Smith, J. O. Sawyer 1973-5-12 6671 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC28188  Trifolium pratense Richard Curtis 1973-9-27 21 Humboldt Bayside cutoff between Eureka and Arcata. Comment
  HSC15165  Trifolium repens Norman H. Moe 1962-5-19 Humboldt Lanphere's Place Comment
  UC16778  Trifolium variegatum var. melananthum Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5530 Humboldt Scotia Comment
  UC1197556  Trifolium variegatum var. variegatum J. P. Tracy 1909-5-2 2966 Humboldt Eureka vicinity 0 Comment
  UC16760  Trifolium willdenovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5874 Humboldt Martin's Ferry Comment
  UC495689  Trifolium willdenovii Joseph P. Tracy 1929-5-5 8568 Humboldt along South Fork of Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1197511  Trifolium willdenovii Joseph P. Tracy 1932-5-17 10092 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC495691  Trifolium willdenovii Joseph P. Tracy 1927-6-12 8169 Humboldt Horse Mtn Northern Coast Ranges 914 Comment
  HSC97616  Trifolium wormskioldii Cara Witte 2007-6-4 188 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC1541579  Trifolium wormskioldii Harold E. Parks May 1934 4329 Humboldt Spruce Cove Trinidad Comment
  UC1223372  Trifolium wormskioldii Joseph P. Tracy 1950-6-18 18767 Humboldt w Petrolia (hills betw town and ocean) Comment
  UC1223521  Trifolium wormskioldii Joseph P. Tracy 1938-7-12 16052 Humboldt w end of Table Bluff Comment
  UC672872  Triglochin maritima Joseph P. Tracy 1933-8-22 12988 Humboldt mouth Eel River 3 Comment
  CAS-BOT-BC520051  Trillium albidum Doris K. Kildale 1926-3-23 1601 Humboldt Humboldt County 21 Comment
  UC146219  Trillium albidum Joseph P. Tracy 1905-4-2 2155 Humboldt region about Humboldt Bay near Arcata; Northern Coast Region, Humboldt Bay 0 Comment
  UC667134  Trillium angustipetalum Joseph P. Tracy 1928-4-29 8418 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC133391  Trillium ovatum Alice Eastwood; John Thomas Howell 1934-4-11 1330 Humboldt Patrick's Point Comment
  HSC24377  Trillium ovatum J. O. Sawyer 1970-6-24 2278 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC41231  Trillium ovatum Brad Klipfel 1974-5-8 320 Humboldt Horse Mountain Comment
  HSC83461  Trillium ovatum R. N. Raynor 1935-3-2 Humboldt Fort Seward Comment
  RSA183586  Trillium ovatum R. D. Zortman 1963-3-16 14 Humboldt 5 miles northeast of Arcata; south of the Mad River, off Warren Creek Road. 91 Comment
  UC1197814  Trillium ovatum unknown 1943-4-2 Humboldt Eureka Comment
  HSC89454  Trillium ovatum M. Roantree 1985-4-28 25 Humboldt NW side of Trinidad Head along trail Comment
  UC1103502  Trillium ovatum Ralph Ferguson 1948-4-9 Humboldt Sutter tract Eureka 60 Comment
  UC175281  Trillium ovatum Joseph P. Tracy 1913-6-26 4350 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen R., Dinsmore's Ra 762 Comment
  JEPS26219  Triphysaria eriantha subsp. eriantha J. P. Tracy 1911-5-30 3207 Humboldt at Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  UC902259  Triphysaria pusilla Joseph P. Tracy 1948-5-15 17974 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1198042  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1936-6-6 14862 Humboldt Eureka 6 Comment
  UC902249  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17467 Humboldt Eureka 6 Comment
  UCD123426  Triphysaria versicolor subsp. versicolor Linda M. Barker 1976-4-13 1424 Humboldt 3 miles west of Arcata. Comment
  UC1237958  Triphysaria versicolor subsp. versicolor John Weiler and A. P. Nelson May 26 1961-May 29 1961 61161 Humboldt on U.S. Highway 101, 3.1 mi s Arcata Comment
  CAS-BOT-BC199623  Trisetum canescens H. E. Parks; Joseph P. Tracy 1934-6-27 11074 Humboldt Grouse Mt. 1432 Comment
  CAS-BOT-BC199626  Trisetum canescens W. R. Dudley 1899-6-1 s.n. Humboldt Eel River near Dyerville Comment
  UC163654  Trisetum canescens Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5494 -5 Humboldt Camp Grant; North Coast Ranges Comment
  CAS-BOT-BC193514  Trisetum cernuum Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  SEINET198591 Image available Trisetum cernuum H. E. Parks, S. T. Parks 7551 Humboldt Spruce Cove Trinidad. 61 Comment
  UC1197723  Triteleia bridgesii Joseph P. Tracy 1911-7-7 3413 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC15029  Triteleia bridgesii P. E. Goddard Jul 1 1901-Aug 1 1901 37 Humboldt Hupa Comment
  HSC3103  Triteleia laxa Greg Bos 1965-5-15 273 Humboldt Berry Summit near Hwy. 299 793 Comment
  JEPS58060  Triteleia laxa W. L. Jepson 1921-8-11 9412 a Humboldt Big Lagoon, Humboldt coast Big Lagoon Comment
  SEINET200770  Triteleia laxa Joseph P. Tracy 1927-5-30 8094 Humboldt Garberville 152 Comment
  CAS-BOT-BC526351  Triteleia laxa Joseph P. Tracy 1941-6-15 16911 Humboldt Wilder Ridge, opposite King's Peak 762 Comment
  HSC35868  Triteleia laxa Thomas W. Nelson, James Nelson 1975-8-5 2126 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. 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
  UC1197716  Triteleia laxa Joseph P. Tracy 1942-6-15 17168 Humboldt 5 mi n Garberville 152 Comment
  CAS-BOT-BC85898  Tsuga heterophylla Doris K. Kildale 1928-3-27 4361 Humboldt Top of Liscom Hill 792 Comment
  NY64312  Tsuga heterophylla J. P. Tracy 1940-8-25 16704 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SBBG11120  Tsuga heterophylla D. E. Breedlove 1961-7-4 669 Humboldt US Hwy 299, 4.1 mi E of the N fork of the Mad River 609 Comment
  UC54775  Tsuga heterophylla Joseph Burtt Davy 1899-6-18 5627 Humboldt along Redwood Creek Redwood Creek (at Bair's) Comment
  CAS-BOT-BC73934  Turritis glabra Doris K. Kildale 1928-6-24 5281 Humboldt Horse Mountain. 853 Comment
  HSC79507  Umbellularia californica Kenneth Clark 1980-3-27 564 Humboldt Dead Man's Gulch, throughout Shelter Cove 69 Comment
  UC1196281  Umbellularia californica Joseph P. Tracy 1926-12-5 7835 Humboldt Blue Slide, on Van Duzen River Van Duzen River; Northern Coast Ranges, Blue Slide, Van Duzen River 91 Comment
  UC1222618  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-8-8 19276 Humboldt 1 mi w of lower end of Croghan Hole (Trinity Summit Trip) Comment
  UC1197767  Vaccinium cespitosum J. P. Tracy 1900-8-26 928 Humboldt immediate vicinity Eureka; , Ricks Prairie 0 Comment
  CAS-BOT-BC199223  Vaccinium membranaceum Joseph P. Tracy 1935-7-22 14121 Humboldt Forks of Tish-Tang-a-Tang Creek, Trinity Summit 1371 Comment
  OBI23023  Vaccinium ovatum Robert J. Rodin 1961-8-11 6807 a Humboldt Near Pepperwood Comment
  RSA66951  Vaccinium ovatum E. K. Balls 1951-5-4 16421 Humboldt Nelson Grove to Robinson Grove, Hwy 101, 20 mi. north of Garberville. Comment
  CAS-BOT-BC199406  Vaccinium parvifolium Clarence R. Quick 1959-7-24 59 -35 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC18950  Vaccinium uliginosum J. O. Sawyer 1968-9-11 729 Humboldt Near Water-dog Lakes 1768 Comment
  JEPS58714  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1924-7-13 6725 Humboldt Big Lagoon Northern Coast Region 6 Comment
  SEINET12318510  Vahlodea atropurpurea K. S. Erdman 1970-1 4819 Humboldt Redwood National Park, summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glen Comment
  HSC97947  Valeriana californica Cara Witte 2007-6-26 359 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/4 mile east from intersection with National Forest 1. 1457 Comment
  UC673215  Valeriana sitchensis subsp. scouleri Lincoln Constance, Reed C. Rollins 1942-5-11 2867 Humboldt 3 mi w of East Fork of Willow Creek; North Coast Ranges Comment
  UC602513  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1925-6-7 7061 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  SEINET12094119  Vancouveria hexandra F. H. Utech 1988-1 88 -269 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  SBBG46472  Vancouveria planipetala K. K. Muller 1954-6-21 635 Humboldt Olson Crk, 2 mi ENE of Mad River Comment
  CAS-BOT-BC76091  Vancouveria planipetala Clarence R. Quick 1959-7-24 59 -36 Humboldt Bee Mountain, ca. 12 miles southwest of Orleans. Comment
  UC1196348  Vancouveria planipetala Joseph P. Tracy 1919-5-30 5171 Humboldt near Willow Creek (hill slopes at West Side of Trinity River); Northern Coast Ranges, w side of Trinity River, Willow Creek 152 Comment
  UC1173643  Veratrum viride Joseph P. Tracy 1934-8-29 13640 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  UC1222773  Verbascum blattaria Joseph P. Tracy 1950-7-9 18980 Humboldt along Trinity Highway Willow Creek Canyon Comment
  JEPS16846  Veronica americana W. L. Jepson 1934-5-7 16707 Humboldt Bull Creek Comment
  UC1198066  Veronica arvensis J. P. Tracy 1910-5-1 3131 Humboldt immediate vicinity of Eureka 0 Comment
  UC582552  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1935-5-25 13832 Humboldt Fort Seward 106 Comment
  UC147891  Veronica peregrina subsp. xalapensis J. P. Tracy 1910-5-22 3136 Humboldt immediate vicinity of Eurika 0 Comment
  UC147901  Veronica serpyllifolia subsp. humifusa Joseph P. Tracy 1910-4-17 3115 Humboldt Valley of Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, Elk River 0 Comment
  HSC32322  Vicia americana var. americana D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5665 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC1197477  Vicia americana var. americana Joseph P. Tracy 1933-5-20 12255 Humboldt near Petrolia (Mattole River); North Coast Region, Mattole River 15 Comment
  RSA91235  Vicia angustifolia F. W. Peirson 1926-7-13 7059 Humboldt Mad River, near Blue Lake Comment
  UC495713  Vicia hirsuta Joseph P. Tracy 1932-10-30 10899 Humboldt Alton to Fortuna (Eel River); Northern Coast Region, Eel River 15 Comment
  RSA168921  Vicia hirsuta Joseph P. Tracy 1943-7-1 17428 Humboldt Vacant lot, 7th and I Streets, Eureka. (Same place as no. 17474). Comment
  RSA170273  Vicia tetrasperma Joseph P. Tracy 1916-5-16 4688 Humboldt Stitz Creek. Along Eel River from South Fork to Scotia. 61 Comment
  HSC3231  Vinca major W. F. Nickel 1965-5-15 Humboldt On Hwy. at N stoplight in Arcata. Comment
  CAS-BOT-BC263833  Viola Lena E. Bowley 1941-4-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC263944  Viola adunca Mrs. H. E. Wilder 1924-5-26 s.n. Humboldt Carlotta Comment
  HSC36881  Viola adunca J. P. Smith, J. O. Sawyer, J. Cole 1976-4-18 8611 Humboldt Bald Hills Rd., 13 mi. from its junction with U.S. 101 Comment
  POM118646  Viola adunca Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1198439  Viola adunca Joseph P. Tracy 1941-3-23 16806 Humboldt by old Strong's District School House (5 mi e of town); Carlotta 45 Comment
  HSC89593  Viola adunca var. adunca M. Roantree 1985-5-2 27 Humboldt W side of Trinidad Head, W of trail Comment
  HSC31194  Viola cuneata D. E. Anderson 1972-6-20 5749 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC65883  Viola cuneata M. A. Baker 1980-6-16 1945 Humboldt Near Onion Mtn. 1280 Comment
  HSC91931  Viola glabella E. Mackey 1986-9-2 Humboldt Patrick's Point State Park Comment
  UCR45416  Viola glabella N. Meiselman, M. Bransom, D. Brown, R. Hildebrant 1986-4-19 35 Humboldt North Coast Range, Horse Mountain, 0.5 mi. down Titlow Road from Ski Area 1372 Comment
  HSC97481  Viola glabella C. Witte 2007-5-18 36 Humboldt Along National Forest 1. Approximately 1 mile north of intersection with 5N09. 1456 Comment
  HSC39528  Viola hallii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2713 Humboldt Along old trail from look out to Blocksburg 1585 Comment
  UC502965  Viola hallii Joseph P. Tracy 1927-6-12 8125 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC21804  Viola hallii D. E. Anderson 1967-6-10 4367 Humboldt W-facing slope on Horse Mtn. 1220 Comment
  HSC96539  Viola macloskeyi Gordon Leppig 1998-5-11 761 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  JEPS50441  Viola ocellata Joseph P. Tracy 1922-4-30 6034 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198453  Viola ocellata Joseph P. Tracy 1913-6-22 4266 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, in Valley of Van Duzen River 762 Comment
  UC164805  Viola sempervirens Joseph P. Tracy 1904-4-3 2006 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC963849  Viola sempervirens H. E. and S. T. Parks April, 1944 24268 Humboldt Spruce Cove; North Coast Ranges, Trinidad, Spruce Cove 60 Comment
  HSC95748  Viola sempervirens Kevin Thomas 2004-3-13 2 Humboldt Arcata Community Forest, Jolly Giant Creek diversion dam Comment
  CAS-BOT-BC198760  Vulpia bromoides Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  HSC38397  Vulpia bromoides J. D. Ackerman 1975-6-10 450 Humboldt 1 mi. N of Samoa Blvd. and Samoa Bridge Rd., S of Manila near RR tracks, along Humboldt Bay Comment
  HSC9841  Vulpia bromoides J. W. Johnson 1962-5-9 1350 Humboldt Christenson Farm, Samoa Peninsula. Comment
  UC1145191  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-7-5 15039 Humboldt Grouse Mountain 1524 Comment
  UC70930  Vulpia microstachys var. pauciflora Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5674 Humboldt Hoopa Mt. Comment
  HSC37935  Vulpia myuros Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC9926  Vulpia myuros E. W. Styskel 1964-4-3 56 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  SEINET200325 Image available Vulpia myuros var. myuros J. P. Tracy 1900-1 858 Humboldt Eureka. Comment
  CAS-BOT-BC128813  Whipplea modesta L. R. Abrams 1922-6-25 8222 Humboldt 6 mi. north of Garberville Comment
  CAS-BOT-BC128816  Whipplea modesta Doris K. Kildale 1928-5-19 5187 Humboldt Chalk Mountain Comment
  HSC42304  Whipplea modesta Tom Duebendorfer 1977-5-15 50 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  UC492216  Whipplea modesta Joseph P. Tracy 1927-8-28 8360 Humboldt Boynton Prairie Northern Coast Ranges 609 Comment
  SBBG36550  Wyethia angustifolia H. and M. Dearing 1933-5-15 2521 Humboldt Weott Comment
  UC1223300  Wyethia angustifolia Joseph P. Tracy 1950-9-10 19357 Humboldt Bear River Ridge 609 Comment
  UCSB23112  Wyethia angustifolia Haller, John 1967-6-17 Humboldt Ferndale-Petrolia Road, 12 miles by road southwest of Ferndale, 3 miles northeast of Bear River Bridge at "Capetown" 152 Comment
  CAS-BOT-BC326978  Wyethia longicaulis Volney Rattan 1883-6-1 s.n. Humboldt North east of Mad River Comment
  HSC12355  Zeltnera muehlenbergii Steve Dorei 1970-10-31 130 Humboldt Scotia Bluff area Comment
  HSC8423  Zeltnera muehlenbergii D. E. Anderson 1961-7-14 1757 Humboldt N-facing slope Comment
  HSC15777  Zigadenus fremontii J. Wendell Howe 1930-3-30 78 Humboldt Diamond Canyon, presumed Humboldt Co. but not stated Comment
  HSC15746  Zigadenus micranthus D. E. Anderson 1965-6-1 3779 Humboldt Near Brush Mtn. lookout 1216 Comment
  HSC15750  Zigadenus micranthus Doris K. Kildale 1936-3-23 1606 Humboldt Alton-Hydeville Rd. 30 Comment
  UC302170  Zigadenus micranthus var. micranthus Joseph P. Tracy 1925-5-30 7041 Humboldt at summit leading to Laribee Valley; Northern Coast Ranges, McClellan Mountain 822 Comment
  CDA1423  Zostera japonica Gordon Leppig, David Couch 2006-11-17 2396 Humboldt Arcata Bay. Mudflat W of City of Arcata oxidation ponds, upper intertidal zone, 2 m from dike. 0 Comment
  HSC104124  Zostera marina Justin Garwood 2015-7-5 Humboldt Comment
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Mar 1 2018
  HSC59463  Zostera marina M. A. Ericksen 1979-5-18 294 Humboldt Humboldt Bay, 50 yds. N of Arcata Redwood Company between Arcata and Eureka Comment



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