Search Results — 2000 specimen records retrieved (1375 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 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
  HSC41313  Abies concolor Brad Klipfel 1974-9-2 543 Humboldt Horse Mountain Comment
  HSC72799  Abies concolor Gail Newton 1980-6-17 213 Humboldt Near Onion Mtn. 1341 Comment
  HSC73937  Abies concolor Gail Newton 1980-6-24 593 Humboldt Near Ladder Rock 1570 Comment
  UC1204915  Abies concolor Joseph P. Tracy 1948-9-5 18202 Humboldt Little Hors-Linto Creek Trinity Summit (head) 1371 Comment
  CAS-BOT-BC78025  Abies grandis Doris K. Kildale 1928-6-2 5303 Humboldt Bucksport - near Eureka Comment
  JEPS47996  Abies magnifica var. magnifica W. L. Jepson 1902-7-16 2043 Humboldt Trinity Summit 2133 Comment
  HSC55155  Abies procera Gilbert Muth 1979-8-1 12107 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC73073  Abies procera M. A. Baker 1980-7-19 3014 Humboldt Near Bret Hole. 1814 Comment
  CHSC68786  Abronia latifolia Vernon Oswald 1997-6-5 8536 Humboldt North spit of Humboldt Bay, west side of New Navy Base Rd. 1.0 mi south of Hwy. 255. 6 Comment
  HSC16133  Abronia latifolia J. W. Johnson 1961-8-17 1050 Humboldt Arcata, ridge 8, Lanphere Farm, Samoa Peninsula Comment
  SEINET5011048  Abronia latifolia Unknown 2002-8-19 83 Humboldt Sand beach N of rocky promontory and coast guard station. Comment
  SD41447  Abronia umbellata subsp. breviflora Edith A. Purer 1932-7-7 4155 Humboldt Samoa Comment
  CAS-BOT-BC436986  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  CDA40634  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile northwest of Fieldbrook. 0 Comment
  CAS-BOT-BC330542  Acer circinatum C. B. Wolf 1931-8-29 2368 Humboldt Redwood Highway, 3 miles N of Orick. (Davison's Ranch on Prairie Creek) 60 Comment
  CAS-BOT-BC330565  Acer circinatum W. R. Dudley 1899-6-21 s.n. Humboldt Englewood Creek, Eel River Comment
  HSC74463  Acer circinatum M. A. Baker 1980-5-18 1360 Humboldt Near Black Mtn. 792 Comment
  UC668175  Acer glabrum var. glabrum Joseph P. Tracy 1933-7-11 12707 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  RSA46728  Acer glabrum var. torreyi Doris K. Kildale 1938-1 15372 Humboldt Hoopa trip. Comment
  HSC69577  Acer macrophyllum R. Kalal 1980-6-1 9 Humboldt S side of Essex Pond 15 Comment
  UC1175129  Acer macrophyllum P. C. Everett and E. K. Balls 1959-10-25 23957 Humboldt 12 mi w from Willow Creek (along U.S. Hwy 299 to Arcata); w from Willow Creek 701 Comment
  HSC58134  Achillea millefolium Muth 1979-8-1 12141 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC28578  Achillea millefolium J. Clausen 1949-6-23 2159 Humboldt Benbow, 2 miles S of Garberville. Comment
  JEPS36906  Achillea millefolium W. L. Jepson 1902-6 1968 Humboldt Redwood Creek; Ukiah, Hupa Indian Reservation Comment
  CAS-BOT-BC400021  Achlys triphylla W. R. Dudley 1899-6-18 s.n. Humboldt Near grade descending to Eel River Comment
  RSA183594  Achlys triphylla D. E. Anderson 1963-5-1 2201 a Humboldt 1 mile west of Hoopa Comment
  UC526753  Achnatherum lemmonii Joseph P. Tracy 1930-7-10 8866 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC60151  Achnatherum lemmonii J. Burtt Davy 1899-6-8 5348 Humboldt Bell Springs North Coast Ranges, Bell Springs Comment
  SEINET201031  Achnatherum occidentale subsp. californicum J. P. Tracy 1932-7-17 10667 Humboldt Trinity Summit ridges E of Corral Prairie; Klamath Mtns 1829 Comment
  UC552728  Achnatherum occidentale subsp. occidentale Joseph P. Tracy 1935-7-26 14272 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UCD103923  Acmispon americanus var. americanus Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  HSC45644  Acmispon micranthus Diane L. Reed 1978-5-7 53 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  BLMAR154  Acmispon parviflorus Donald Hazlett 1994-6-7 154 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CHSC35605  Acmispon parviflorus Jame P. Smith 1973-5-26 6837 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SD53240  Acmispon parviflorus Darley F. Howe 1962-5-22 3307 Humboldt 0.7 miles east of Orick on Bald Mountain Road 395 Comment
  SDSU4308  Acmispon parviflorus D. F. Howe 1962-5-22 3307 Humboldt 0.7 miles east of Orick on Bald Mt. road. 396 Comment
  HSC102039  Aconitum columbianum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 942 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC668267  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp 1402 Comment
  HSC55866  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-7-25 10888 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC37338  Adenocaulon bicolor Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 486 Humboldt Along Lost Man Creek. 38 Comment
  UC164785  Adenocaulon bicolor J. P. Tracy 1901-6-2 1119 Humboldt immediate vicinity Eureka 0 Comment
  OBI1123  Adiantum X tracyi Lawrence L. Kiefer 1964-5-19 1406 Humboldt Garberville, California one mile north of town, ravine just above Highway 101 305 Comment
  UC249778 Image available Adiantum X tracyi Joseph P. Tracy 1924-9-16 6868 Humboldt <collector's garden> Eureka; Northern Coast Ranges 30 Comment
  CAS-BOT-BC62293  Adiantum aleuticum Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC33657  Adiantum aleuticum M. Wetherwax 1975-6-1 173 Humboldt Next to Simpson Cr. Comment
  POM347034  Adiantum aleuticum Lyman Benson 1928-7-13 487 Humboldt Weatt Ranger Station 61 Comment
  UC1239772  Adiantum jordanii Joseph P. Tracy 1927-4-2 7883 Humboldt S Fork of Eel River Phillipsville; Northern Coast Ranges 121 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
  UC249587  Aesculus californica Joseph P. Tracy 1921-10-22 5978 Humboldt Bridgeville; Northern Coast Ranges 304 Comment
  RSA168824  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt In woods, Friday Ridge 1220 Comment
  UC1173668  Ageratina occidentalis Joseph P. Tracy 1939-8-5 16388 Humboldt along Van Duzen River, opposite Black Mt.; Van Duzen River 737 Comment
  UC1223124  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt Friday Ridge 1219 Comment
  HSC4595  Agoseris grandiflora J. W. Johnson 1961-8-17 1004 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC74403  Agoseris grandiflora Gail Newton 1980-6-28 747 Humboldt Near Mad River Butte. 1536 Comment
  UCD128594  Agoseris grandiflora Joseph P. Tracy 1942-7-18 17275 Humboldt north end of town, Garberville. Comment
  UC1239513  Agoseris grandiflora var. grandiflora Mrs. C. M. Wilder 1936-7-1 Humboldt at Jack Kemp's place, sw slope Buck Mt. Buck Mt. 914 Comment
  UC302295  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1926-6-27 7688 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  UC1222763  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1942-6-15 17151 Humboldt .5 mi ne, on rd to Harris Garberville 304 Comment
  UC249843  Agoseris hirsuta Joseph P. Tracy 1923-6-20 6316 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  UC1103368  Agrostis alba J. P. Tracy 1900-9-2 933 1/2 Humboldt immediate vicinity Eureka 0 Comment
  CDA1703  Agrostis capillaris T. C. Fuller 1962-8-6 9362 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  HSC8836  Agrostis densiflora D. C. Juve 1964-5-16 41 Humboldt Camp Tish-Tang, Campbell Creek Ranger Station, off Hwy 96 Comment
  RSA10022  Agrostis exarata Joseph P. Tracy 1924-7-13 6731 Humboldt Big Lagoon 6 Comment
  RSA87372  Agrostis exarata F. W. Peirson 1941-7-28 13116 Humboldt Patrick's Point State Park Comment
Read comments
Jun 4 2015
  UC1103373  Agrostis exarata J. P. Tracy 1900-9-9 953 Humboldt Yager Creek near Hydesville; Yager Creek 60 Comment
  UC36912  Agrostis exarata Harley P. Chandler June, 1901 1512 Humboldt Klamath River 426 Comment
  UC1145077  Agrostis hallii Joseph P. Tracy 1938-7-4 15982 Humboldt valley South Yager Creek; Valley of South Yager Creek 762 Comment
  UCD52715  Agrostis hallii R. Tofsrud 1949-7-1 s.n. Humboldt between Scotia and Capetown. Comment
  UCD52807  Agrostis idahoensis Joseph P. Tracy 1950-7-31 19243 Humboldt Grouse Mountain. 1615 Comment
  UC180490  Agrostis microphylla Joseph P. Tracy 1914-5-14 4471 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UC1103397  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 9006 Humboldt wet meadow at McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  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-BC138636  Agrostis stolonifera Carl B. Wolf 1927-8-28 1189 Humboldt Eureka Bay, on the road to Arcata. Comment
  RSA126092  Agrostis stolonifera Joseph P. Tracy 1902-7-4 1758 Humboldt [Unspecified] Comment
  HSC8830  Agrostis thurberiana J. P. Tracy 1930-7-16 8931 Humboldt South Fork Mountain: McKay camp. 1677 Comment
  JEPS75413  Agrostis viridis W. L. Jepson 1932-7-26 16410 Humboldt Bull Creek 106 Comment
  UC526890  Agrostis viridis Joseph P. Tracy 1926-7-4 7697 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC70927  Aira caryophyllea R. York 1980-5-18 578 Humboldt Near Black Mtn 792 Comment
  HSC34696  Alisma triviale Thomas W. Nelson 1974-9-12 1707 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata Comment
  HSC102207  Allium amplectens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1122 Humboldt Andy's Camp 1564 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
  HSC100546  Allium campanulatum Carl C. Marshall Jun 1886 304 Humboldt Trail E of Hoopa. Comment
  UC1198200  Allium falcifolium Joseph P. Tracy 1933-7-25 12892 Humboldt Grouse Mountain 1524 Comment
  UC1562908  Allium peninsulare Barbara Ertter with Thomas J. Delendick 1987-5-16 6920 Humboldt ca. 15 air mi e Arcata (ridge below vista, w of Berry Summit on Hwy. 299); Vista Point 914 Comment
  SEINET8191725  Allium triquetrum R. R. Halse 2013-3-28 8768 Humboldt Along US Hwy 101, ca 1.0 mile W of Orick. 4 Comment
  HSC2987  Allium unifolium J. F. Knezevich 1968-5-14 438 Humboldt 11 mi. S of Ferndale on rd. to Cape Mendocino 305 Comment
  CAS-BOT-BC476627  Allium unifolium Carl B. Wolf 1937-8-11 8900 Humboldt Fleener Creek, 1/2 mi. so. of Centerville. 45 Comment
  HSC2988  Allium validum J. P. Tracy 1930-7-16 8922 Humboldt Near McKay Camp. 1677 Comment
  CAS-BOT-BC453427  Allotropa virgata Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC170946  Alnus rhombifolia Doris K. Kildale 1927-5-15 3292 Humboldt Mattole River Valley Comment
  CAS-BOT-BC169533  Alnus rubra Doris K. Kildale 1926-6-28 2181 Humboldt Big Lagoon Comment
  HSC40971  Alnus rubra Linda M. Barker 1976-6-14 1602 Humboldt 3 mi. W of Arcata Comment
  POM160842  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit. 1829 Comment
  UC1225944  Alnus viridis subsp. sinuata Joseph P. Tracy 1947-8-24 17913 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UCD55900  Alopecurus geniculatus A. A. Beetle; G. L. Stebbins, J. P. Tracy 1942-6-2 3458 Humboldt Loleta Swamp, south of Eureka. Comment
  SEINET11674220  Alopecurus geniculatus J. P. Tracy 1951-1 19524 Humboldt back of Everett Beck house (formerly George Fray) bed of former Goose Lake, Hydesville Comment
  UC573793  Alopecurus pratensis H. L. Person 1932-5-11 Humboldt Redwood Hwy. between Arcata and Eureka; Eureka Quad. 0 Comment
  SEINET7014139  Ambrosia chamissonis R. Mastrogiuseppe, J. Mastrogiuseppe 1983-7-16 3491 Humboldt Dunes near Dry Lagoon. Comment
  UC418998  Amelanchier alnifolia var. semiintegrifolia H. E. Parks, J. P. Tracy 1925-6-25 3775 Humboldt Lawrence Creek Comment
  HSC32334  Amelanchier pallida D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5617 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC96014  Amelanchier pallida Juha Pykala, D. H. Norris 1987-5-19 708 Humboldt Horse Mtn. Rd. at intersection of rd. to ski lift 1400 Comment
  SBBG115197  Ammophila arenaria D. Leaberry 1992-6-20 Humboldt Clam Beach County Park, ca. 1 mi N of Arcata Airport Comment
  SD41377  Ammophila arenaria Edith A. Purer 1932-7-30 4678 Humboldt South of Orick, sand dunes. Comment
  SD41378  Ammophila arenaria Edith A. Purer 1932-7-27 4157 Humboldt Samoa, sand dunes. Comment
  SEINET3917968  Ammophila arenaria J. P. Smith, Thomas W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just east of the drag strip.; 0 Comment
  SEINET7296676 Image available Ammophila arenaria Richard W. Pohl 1987-1 15639 Humboldt Eureka; Beach and salt marsh 2 Comment
  HSC100934  Amsinckia intermedia Miss Handy Jun 1886 342 Humboldt Maple Cr. & Salmon Cr. Comment
  HSC23719  Anagallis arvensis Tim Baroni 1971-7-5 104 Humboldt 8 mi. E of Petrolia Comment
  HSC4623  Anaphalis margaritacea J. W. Johnson 1961-8-17 1018 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC95077  Anaphalis margaritacea Andrea Pickart 2002-7-3 163 Humboldt S side Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  POM288758  Anaphalis margaritacea Lyman Benson 1929-7-12 1747 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  RSA167301  Anaphalis margaritacea Joseph P. Tracy 1950-9-10 19363 Humboldt On foothills of Cape Ridge. 0.5 mile S of town. 1 mile inland from Cape Mendocino. 61 Comment
  RSA21448  Anaphalis margaritacea C. B. Wolf 1937-8-13 9212 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  RSA416575  Anaphalis margaritacea C. B. Wolf 1937-8-13 9213 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  CAS-BOT-BC391780  Anemone deltoidea V. Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC391784  Anemone deltoidea Mrs. H. C. Cantelow 1936-5-17 1387 Humboldt About 11 mi. E. of Orick Comment
  UC1197378  Angelica genuflexa Joseph P. Tracy 1940-9-26 16733 Humboldt 2 mi s of Fields Landing (Near Still Ranch) 6 Comment
  UC1197387  Angelica genuflexa Joseph P. Tracy 1939-10-6 16504 Humboldt opposite to Sunset Cemetary (Bucksport); Bucksport 6 Comment
  HSC71416  Angelica hendersonii J. M. DiTomaso 1980-8-1 1820 Humboldt Alton, S of Eureka, above NE junction of railroad and Hwy 36, E of Hwy 101 Comment
  HSC21452  Angelica lucida Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC71328  Angelica lucida J. M. DiTomaso 1981-6-16 2013 Humboldt Hwy. 101, 1 mi. S of Samoa Blvd., Arcata. Comment
  UCD127180  Angelica tomentosa Joseph DiTomaso 1980-8-15 1864 Humboldt 5 miles west of Willow Creek at 34.4 mile road mark on Highway 299. Comment
  HSC32840  Anisocarpus madioides Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC76418  Anisocarpus madioides Denis Kearns 1981-7-8 161 Humboldt Near Bluff Creek 622 Comment
  JEPS13179  Antennaria suffrutescens Joseph P. Tracy 1926-6-20 7626 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  RSA167203  Antennaria suffrutescens Joseph P. Tracy 1947-7-9 17864 Humboldt Horse Mountain 1432 Comment
  UC175182  Anthemis arvensis Joseph P. Tracy 1913-5-21 4074 Humboldt Eureka Northern Coast Region 0 Comment
  HSC38313  Anthoxanthum odoratum Peter Sorensen 1976-6-2 Humboldt North Spit Comment
  HSC8931  Anthoxanthum odoratum J. W. Johnson 1962-4-18 1267 Humboldt Along the lane below the W.M. Lanphere Home, Samoa Peninsula Comment
  UC1198738  Aphanes occidentalis J. P. Tracy 1905-5-21 2184 Humboldt immediate vicinity Eureka 0 Comment
  UC154129  Aphanes occidentalis J. P. Tracy 1904-4-24 2033 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UC303163  Aphanes occidentalis Joseph P. Tracy 1925-5-30 7018 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  HSC97622  Apocynum androsaemifolium Cara Witte 2007-6-19 301 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  UC176867  Apocynum cannabinum Joseph P. Tracy 1912-7-26 3838 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC392165  Aquilegia formosa Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC18037  Aquilegia formosa var. formosa F. B. Plett 1963-5-11 45 Humboldt 1.5 mi. N of Trinidad on old Hwy. 101 Comment
  HSC18040  Aquilegia formosa var. formosa Greg Bos 1965-5-2 235 Humboldt 5 mi. E of Korbel on Bald Mtn. Rd. 732 Comment
  RSA20852  Aquilegia formosa var. truncata Carl B. Wolf 1937-6-18 8892 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  UC594249  Arabis glabra S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3418 Humboldt nw slopes Buck Mountain 822 Comment
  CAS-BOT-BC167260  Aralia californica Volney Rattan 1882-1-1 s.n. Humboldt Unspecified Comment
  HSC12860  Arbutus menziesii M. Athey, D. LaConte 1970-11-28 37 Humboldt HSU campus Comment
  HSC7596  Arbutus menziesii J. W. Johnson 1962-3-15 1184 Humboldt In the woods near Lanphere Lane, Christenson Farm, Samoa Peninsula Comment
  HSC71803  Arceuthobium campylopodum M. A. Baker 1980-6-26 2381 Humboldt Near Sims Creek 610 Comment
  UC180189  Arctium minus Joseph P. Tracy 1914-10-4 4631 Humboldt Table Bluff Northern Coast, Humboldt Bay 0 Comment
  SEINET202625 Image available Arctium minus Joseph P. Tracy 1948-9-20 18223 Humboldt Halfway between Hoopa and Weitchpec Comment
  UC902045  Arctostaphylos X candidissima Joseph P. Tracy 1949-8-4 18405 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  JEPS38853  Arctostaphylos X media Joseph P. Tracy 1923-3-31 6171 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  JEPS109812  Arctostaphylos canescens subsp. sonomensis Dean W. Taylor 2004-4-15 19056 Humboldt Titlow Hill Road, 2.5 miles South of Berry Summit on Hwy 299 1112 Comment
  BLMAR176  Arctostaphylos columbiana Donald Hazlett 1994-6-7 176 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC23727  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13139 Humboldt Vicinity of Trinidad 60 Comment
  RSA622679  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27677 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
  UC1222640  Arctostaphylos columbiana Joseph P. Tracy 1951-3-10 19391 Humboldt 2 mi n Trinidad; Park's place Comment
  UC1225901  Arctostaphylos columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff 91 Comment
  UC585917  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13139 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC585922  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12582 Humboldt summit of barren ridge 1 mi s road from Hoopa westward to Bair's; Hoopa Mountain 1219 Comment
  UC726576  Arctostaphylos columbiana A. A. Heller 1937-6-12 15918 Humboldt along road paralleling the ocean Bishop Pine Lodge (3 mi n of Trinidad) Comment
  POM286175  Arctostaphylos glandulosa subsp. cushingiana Lyman Benson 1929-7-19 1592 Humboldt Dyerville to Matole River. Comment
  RSA632802  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27765 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA633027  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27800 Humboldt Highway 96, at Bald Hills Road, at the Klamath River, north of Weitchpec. 100 Comment
  RSA0049659  Arctostaphylos manzanita subsp. glaucescens Dean Wm. Taylor 2011-5-4 21119 Humboldt Larabee Valley, along Highway 36 about 1 mile east of the eastern end of the valley at the bridge for the Little Van Duzen River 701 Comment
  CAS-BOT-BC24327  Arctostaphylos manzanita subsp. manzanita H. E. McMinn 1922-7-1 327 Humboldt 2 mi. from ranger station at bridge on road to Red Bluff from Eureka. Comment
  JEPS38928  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC153967  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1909-10-7 3112 Humboldt Gans Prairie Northern Coast Ranges 609 Comment
  UC585968  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC38516  Arctostaphylos nevadensis D. E. Anderson, J. P. Smith 1971-6-18 1085 Humboldt Horse Mtn. Comment
  UC1602024  Arctostaphylos nevadensis J. W. Congdon 1904-7-23 Humboldt <illegible> Eureka Comment
  CAS-BOT-BC40067  Arctostaphylos nevadensis subsp. knightii Walter Knight; Irja Knight 1988-9-5 6360 Humboldt 21 miles up Bald Hill road from US-101 en route to Hoopa. 975 Comment
  CAS-BOT-BC40073  Arctostaphylos nevadensis subsp. knightii Stephen W. Edwards 1985-10-28 85 -52 Humboldt Horse Mt., due east of Arcata 20 miles airline. Comment
  SEINET11989136  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1982-1 4517 Humboldt Tilden Botanic Garden, Berkeley, orig. from French Camp on road between Orick & Wichepec Comment
  UC1173708  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16419 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC43989  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa, Humboldt Bay. 7 Comment
  CAS-BOT-BC46793  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17504 Humboldt Eureka 45 Comment
  HSC28130  Arctostaphylos uva-ursi J. D. Ackerman, A. M. Montalvo 1973-3-27 42 Humboldt 1.5 mi. N of Manila Comment
  HSC7730  Arctostaphylos uva-ursi Norman H. Moe 1962-3-17 Humboldt Lanphere's Place Comment
  UCD52028  Arctostaphylos uva-ursi Roman Gankin 1965-8-6 554 Humboldt Sand dunes west of road. 1.3 miles south of Samoa, Samoa Peninsula, Humboldt County, California. Comment
  UCD52152  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1148 Humboldt Comment
  SEINET2031082 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1901-1 1061 Humboldt Region about Humboldt Bay 0 Comment
  SEINET11987137  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3993 Humboldt Tilden Botanic Garden, Berkeley, orig. from Table Bluffs near Eureka Comment
  CDA10101  Arctotheca prostrata Gordon Leppig 2000-4-9 1288 Humboldt Arcata. Union Street at 7th Street. South of Phillips House. Comment
  UC668127  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 b Humboldt Head of Brett Hole Trinity Summitt, Brett Hole 1828 Comment
  UC1115829  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1939-4-29 16243 Humboldt at mouth of State Creek Klamath River, State Creek 121 Comment
  CAS-BOT-BC137570  Aristida oligantha Joseph P. Tracy 1933-8-27 13000 Humboldt Robertson's Range. Vicinity of Garberville. 121 Comment
  HSC89499  Armeria maritima subsp. californica M. Roantree 1985-5-24 50 Humboldt N side of Trinidad Head on slope below trail. Comment
  HSC65884  Arnica cernua M. A. Baker 1980-6-16 1944 Humboldt Near Onion Mtn. 1280 Comment
  HSC99042  Arnica cernua Cara Witte 2008-6-4 681 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1276 Comment
  CAS-BOT-BC82647  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1524 Comment
  HSC102702  Arrhenatherum elatius J. P. Smith 2013-6-16 13730 Humboldt Along State Route 36, adjacent to the Dinsmore Airport. 735 Comment
  HSC67028  Artemisia douglasiana J. P. Smith 1970-6-7 3811 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  RSA424565B  Artemisia douglasiana Thomas S. Elias, Barbara A. Elias 1987-8-26 10628 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  CAS-BOT-BC93859  Artemisia dracunculus Doris K. Kildale 1926-8-8 2473 Humboldt Dyerville Bidge, river bar 45 Comment
  RSA289423  Artemisia dracunculus Lyman Benson 1929-7-16 1824 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  HSC67445  Artemisia pycnocephala J. P. Smith 1971-10-6 4960 Humboldt End of Murray Rd. in McKinleyville. Comment
  SEINET201065  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt Samoa Comment
  UCD129341  Artemisia pycnocephala Linda M. Barker 1976-7-5 1633 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  JEPS17992  Artemisia pycnocephala George B. Rossbach 1955-6-10 513 Humboldt near lagoon and lighthouse Humboldt Bay (between Fairhaven and end of sandy point off Eureka) Comment
  UC1073329  Artemisia pycnocephala George B. Rossbach 1955-6-10 513 Humboldt between Fairhaven and end of sandy point off Eureka (near Humboldt Bay (lagoon) and lighthouse); Humboldt Bay Comment
  UC249827  Artemisia suksdorfii Joseph P. Tracy 1924-8-10 6812 Humboldt Blue Slide on Van Duzen River 91 Comment
  UC154045  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 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
  SEINET6652462  Asarum caudatum J. P. Tracy 1900-5-22 794 Humboldt Vicinity of Eureka Comment
  UCD137836  Asarum caudatum Suzanne E. May 1967-4-15 21 Humboldt on Kneeland Road, 5 miles east of Bridgeville. 243 Comment
  HSC3274  Asarum hartwegii D. E. Anderson 1965-5-8 3647 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. Comment
  HSC63150  Asarum hartwegii M. A. Baker 1979-6-28 950 Humboldt NE side near summit of Packsaddle Ridge just N of the most E tip of the N fork of Mill Creek Comment
  HSC63224  Asclepias cordifolia M. A. Baker 1978-5-6 489 Humboldt 2 km. S of Weitchpec Comment
  UC1197605  Asclepias speciosa Joseph P. Tracy 1911-7-8 3472 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of the Trinity River 152 Comment
  HSC100388  Aspidium nevadense Carl C. Marshall Apr 1885 124 Humboldt Near streams and swamps. Comment
  HSC1050  Aspidotis densa Francis Winter 1960-4-24 Humboldt 8 mi. NE of Redwood Creek Ranch 610 Comment
  RSA53857  Aspidotis densa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  UC211498  Aspidotis densa Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  RSA21097  Aspidotis densa C. B. Wolf 1937-6-14 8825 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  RSA686386  Aspidotis densa Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain Trail 915 Comment
  RSA93746  Aster radulinus F. W. Peirson 1923-7-10 3881 Humboldt Garberville. Comment
  CDA26595  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land. THP 1-00-461HUM. Comment
  BLMAR220  Astragalus nuttallii Jennifer Anthony-Wheeler 1996-7-26 220 Humboldt King range, growing in open, coastal bluff 10ft W. of windy pt 91 Comment
  CAS-BOT-BC69451  Athyrium filix-femina subsp. cyclosorum L. B. Kildale 1930-7-7 10264 Humboldt Chaparral Mt. at Bug Creek. 914 Comment
  RSA44514  Athyrium filix-femina subsp. cyclosorum Henry M. Pollard 1947-8-28 s.n. Humboldt Perch Creek Canyon, Mount Orleans Comment
  HSC54570  Athyrium filix-femina var. cyclosorum Overton, Butler 1979-7-24 9598 Humboldt Near Titlow Hill, close to the town of Willow Cr. 1250 Comment
  UC922657  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  BLMAR302  Atriplex patula Jennifer Anthony-Wheeler 2002-7-1 302 Humboldt South Spit, bayside edge of east side 6 Comment
  RSA10054  Avena barbata Joseph P. Tracy 1933-5-20 12228 Humboldt 3 mi south of point of Cape Mendocino 3 Comment
  UC1239784  Azolla filiculoides Joseph P. Tracy 1911-6-25 3245 Humboldt pool back of Holmes Mill Bucksport; Northern Coast Region 0 Comment
  HSC40410  Baccharis douglasii Thomas W. Nelson, James Nelson 1976-7-28 3061 Humboldt Beside SR 36 at Grizzly Creek Comment
  UC604625  Baccharis glutinosa Joseph P. Tracy 1938-8-21 16128 Humboldt Mouth of Little River 9 Comment
  HSC28931  Baccharis pilularis subsp. consanguinea Diane Johnson 1972-11-14 Humboldt Butler Valley near Maple Creek Comment
  HSC29875  Baccharis pilularis subsp. consanguinea Thomas W. Nelson 1971-11-11 601 Humboldt Foot of Murray Rd., McKinleyville. Comment
  CHSC284  Bellis perennis M. Underhill 1952-7-13 Humboldt 1 Comment
  HSC91924  Bellis perennis E. Mackey 1987-1-17 Humboldt Patricks Point State Park, near Wedding Rock. Comment
  UCR123950  Bellis perennis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6993 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
  HSC34654  Bellis perennis A. M. Montalvo 1975-4-10 206 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 Comment
  SEINET12219011  Bensoniella oregona J. P. Tracy 1951-1 19416 Humboldt East side of Snow Camp Meadows Comment
  UC204587  Berberis aquifolium Joseph P. Tracy 1918-5-1 4894 Humboldt Kneeland Prairie 457 Comment
  HSC74356  Berberis aquifolium var. repens Gail Newton 1980-6-17 228 Humboldt Near Onion Mtn. 1341 Comment
  UCD39982  Berberis aquifolium var. repens Rodney Gale Myatt 1971-9-21 1186 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  CAS-BOT-BC75680  Berberis nervosa Doris K. Kildale 1928-5-15 6032 Humboldt Bug Creek, Chaparral Mountain. Comment
  HSC28089  Berberis nervosa J. D. Ackerman 1973-4-29 77 Humboldt 2 mi. NE of Kneeland Comment
  HSC92017  Berberis nervosa E. Mackey 1986-10-24 Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC66262  Blechnum spicant E. A. McGregor 1921-8-17 s.n. Humboldt On old abandoned road grade, S.E. of Orick Comment
  CAS-BOT-BC66271  Blechnum spicant A. M. Showalter 1925-8-12 s.n. Humboldt west of Orick Comment
  CAS-BOT-BC15788  Boechera acutina Joseph Prince Tracy 1932-7-11 10396 Humboldt Klamath Mountains. At Corral Prairie. 1524 Comment
  CHSC69843  Bolboschoenus maritimus subsp. paludosus Leonel Arguello 1989-6-11 Humboldt At the Lanphere-Christensen Dunes Preserve 3 miles west of Arcata. Along the edge of the salt marsh, approximately 50 ft. west of the Salt Marsh trail. Comment
  CDA5649  Borago officinalis T. C. Fuller 1958-6-17 598 -58 Humboldt Ferndale. 0 Comment
  UC420421  Boykinia occidentalis Mrs. M. H. Manning 1901-7-31 323 Humboldt Eureka Trail Comment
  UCR104577  Brassica rapa A. R. Alexander 1998-4-9 8 Humboldt US Highway 101 and Giuntoli Lane, near shopping center, Arcata 152 Comment
  CAS-BOT-BC106290  Brickellia californica Doris K. Kildale 1926-8-29 2593 Humboldt Van Duzen River, near Strong's Station Comment
  CAS-BOT-BC106294  Brickellia californica S. K. Harris; Mrs. C. M. Wilder 1938-9-8 877 Humboldt Bars on Van Duzen River, below Blue Slide Comment
  RSA47155  Brickellia californica Doris K. Kildale 1926-8-29 2593 Humboldt Van Duzen River at Strong's Station Comment
  RSA94123  Brickellia californica F. W. Peirson 1926-7-13 7048 Humboldt Mad River, vicinity of Blue Lake. Comment
  CAS-BOT-BC127681  Brickellia greenei Joseph P. Tracy 1934-9-5 13655 Humboldt Horse Mountain 1402 Comment
  HSC26817  Briza maxima Glenn I. Wilcox 1973-5-26 Humboldt W shore of Freshwater Lagoon Comment
  HSC79462  Briza maxima Kenneth Clark 1980-5-10 661 Humboldt Access road to Shelter Cove 30 Comment
  HSC89547  Briza maxima M. Roantree 1985-5-2 35 Humboldt E side of Trinidad Head. Comment
  UC526898  Briza maxima Joseph P. Tracy 1930-6-15 8758 Humboldt Alder Point North Coast Ranges 152 Comment
  SEINET14395468  Briza maxima K. W. Parker 1931-5-15 1003 Humboldt 2 mi N of Blocksburg Comment
  HSC28147  Briza minor Chris Gist 1971-6-23 23 Humboldt Gravel driveway between G St. and H St., Arcata Comment
  HSC9091  Briza minor John Warner Hosking 1966-8-5 Humboldt 12th anb B St., Arcata Comment
  UC180488  Briza minor Joseph P. Tracy 1914-5-14 4442 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC24375  Brodiaea elegans subsp. elegans J. O. Sawyer 1970-6-24 2245 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  JEPS7737  Brodiaea elegans subsp. elegans Lincoln Constance 1934-5-24 647 Humboldt South Fork Eel River Bull Creek Region, South Fork Eel River 121 Comment
  CAS-BOT-BC484218  Brodiaea elegans subsp. elegans Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  HSC69895  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1977-7-29 3637 Humboldt Beside SR 36 at head of Larabee Valley 823 Comment
  RSA12519  Brodiaea elegans subsp. elegans Carl B. Wolf 1934-7-3 5917 Humboldt 21 miles from Orick on road to Weitchpec. 152 Comment
  SEINET12053853  Brodiaea stellaris J. P. Tracy 1950-1 18903 Humboldt McClellen Mt., just E of McClellen Rock, Burr Valley 762 Comment
  SEINET247908  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1927-6-8 8111 Humboldt Trinidad. Comment
  SEINET4345214  Bromus carinatus J. B. Davy 1899-6-11 5408 Humboldt Summit above Hubbard Station Comment
  UC37672  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  UC526866  Bromus carinatus var. carinatus Joseph P. Tracy 1925-7-5 7162 Humboldt High Prairie on Bald Mountain High Prairie; Northern Coast Ranges, Bald Mountain, High Prairie 1066 Comment
  UCD58498  Bromus carinatus var. carinatus A. H. Murphy 1951-3-30 s.n. Humboldt 2 miles north of Petrolia. County road. Comment
Read comments
May 22 2012
  HSC9287  Bromus diandrus R. D. Modafferi 1965-5-9 52 Humboldt 0.2 mi. N of Trinidad on Trinity St. 305 Comment
  HSC9289  Bromus diandrus N. R. Waite 1965-5-18 33 Humboldt W edge of Humboldt State University campus Comment
  HSC9296  Bromus diandrus R. J. Vernimen 1963-3-25 16 Humboldt Clam Beach Lagoons, along railroad tracks Comment
  HSC71600  Bromus laevipes M. A. Baker 1980-6-26 2411 Humboldt Near Sims Creek 610 Comment
  RSA126884  Bromus laevipes H. S. Yates 1936-6-17 5686 Humboldt 1 mile west of Bridgeville 183 Comment
  UC1103271  Bromus laevipes Joseph P. Tracy 1911-7-6 3339 Humboldt between Three Creeks and mouth of Willow Creek (Northern Coast Ranges); Northern Coast Ranges 762 Comment
  UC525675  Bromus madritensis subsp. rubens Joseph P. Tracy 1933-6-25 12623 Humboldt 2 to 5 mi e of South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  CAS-BOT-BC161604  Bromus sterilis Joseph P. Tracy 1916-5-31 4701 Humboldt Northern Coast Ranges of California. Stitz Creek. Along Eel River from South Fork to Scotia. 60 Comment
  HSC40688  Bromus tectorum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2871 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  POM277333  Bromus vulgaris Lyman Benson 1928-7-8 258 Humboldt Weott Ranger Station; Seaword N Coast Mt. Range; S. Fork Eel River. 61 Comment
  UC725498  Bromus vulgaris A. A. Heller 1923-7-10 13789 Humboldt Humboldt Camp between Scotia and Pepperwood; Humboldt Camp Comment
  UCD60234  Bromus vulgaris P. B. Kennedy 1923-8-3 s.n. Humboldt South of Scotia. Comment
  UC1198280  Cakile edentula Joseph P. Tracy 1946-1-13 17518 Humboldt Centerville Beach 3 Comment
  HSC12357  Cakile maritima Steve Dorei 1970-10-7 145 Humboldt McKinleyville Comment
  HSC39982  Cakile maritima Linda M. Barker 1976-6-22 1628 Humboldt 3 mi. W of Arcata Comment
  HSC6607  Cakile maritima S. J. Hawks 1965-3-19 11 Humboldt 0.5 mi. W of Arcata Airport Comment
  HSC6608  Cakile maritima D. E. Anderson 1961-9-2 1770 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  UC1145052  Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 A Humboldt near Panther Gap (on road between Mattole and Bull Creek) 822 Comment
  HSC103094  Calamagrostis koelerioides Sydney Carothers 2014-7-3 18 Humboldt Six Rivers National Forest, Lassics Botanical Area, Mt. Lassic, upper north slope 1775 Comment
  UC187252  Calamagrostis nutkaensis J. P. Tracy 1901-6-30 1192 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1145049  Calamagrostis rubescens Joseph P. Tracy 1938-7-17 16082 Humboldt Garberville; river bank 152 Comment
  HSC17627  Calandrinia ciliata Elrid H. Spinas 1948-5-22 32 Humboldt Horse Mtn. Comment
  HSC13057  Callitropsis nootkatensis C. Kline, D. Santana Oct 1970 8 Humboldt HSC Campus Comment
  CAS-BOT-BC80389  Calocedrus decurrens Doris K. Kildale 1926-8-15 2540 Humboldt Hoopa Mountain 579 Comment
  CAS-BOT-BC80390  Calocedrus decurrens Doris K. Kildale 1926-9-5 2610 Humboldt Lasseck's Peaks - at Goat Camp 1661 Comment
  UC1197676  Calochortus amabilis Joseph P. Tracy 1930-6-15 8749 Humboldt Bosworth's Larrabee Creek 457 Comment
  OBI36660  Calochortus coeruleus David J. Keil 1983-7-2 17309 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mtn Summit Rd Comment
  UC1368469  Calochortus coeruleus R. K. Gierisch 1969-7-1 3530 Humboldt Grouse Mtn. Six Rivers Forest/Expt. Area 1584 Comment
  CAS-BOT-BC488620  Calochortus elegans var. nanus Doris Kildale Gillespie 1931-6-7 10586 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC15346  Calochortus tolmiei H. E. Parks, J. P. Tracy 1930-5-25 790 Humboldt Laribee Valley 762 Comment
  CAS-BOT-BC494359  Calochortus tolmiei W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  UC1197690  Calochortus vestae Joseph P. Tracy 1918-6-16 4953 Humboldt Eureka Northern Coast Ranges Comment
  UC129390  Calycadenia fremontii Harley P. Chandler 1901-6-1 1533 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC34627  Calycadenia fremontii Chesnut and Drew 1888-7-24 Humboldt Hy-Am-Pim Comment
  UC668210  Calycadenia fremontii Joseph P. Tracy 1938-8-14 16117 Humboldt South Fork of Trinity River, west of its mouth South Fork of Trinity River 304 Comment
  HSC65839  Calyptridium monospermum Gail Newton 1980-6-16 173 Humboldt Near Monks Camp. 1097 Comment
  HSC98837  Calystegia occidentalis subsp. occidentalis Cara Witte 2008-7-30 967 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B. 1417 Comment
  UC562485  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-7-21 12816 Humboldt Redwood House on road to South Yager; on road to South Yager, Redwood House 762 Comment
  RSA246921  Calystegia soldanella R. F. Thorne, P. C. Everett, K. Thorne 1965-8-5 35151 Humboldt Samoa Dunes. 3 Comment
  RSA296783  Calystegia soldanella Clark L. Miller 1979-5-24 1 -149 Humboldt Sandy Dunes off Somoa Blvd. approx. a half mile from Coast Guard Station Gate. Comment
  RSA34296  Calystegia soldanella J. Wendell Howe 1933-5-23 s.n. Humboldt Samoa Comment
  UCD126163  Calystegia soldanella Roman Gankin 1965-8-6 559 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  CAS-BOT-BC493385  Camassia quamash subsp. linearis Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  HSC45064  Camissonia ovata R. Sutherland 1978-3-30 2 .30378 Humboldt Mckee Flat 293 Comment
  CAS-BOT-BC160239  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. Harris; S. K. Harris; Clarence Crane, Jr. 1939-8-23 s.n. Humboldt On beach-sand at Samoa Comment
  SEINET10972393  Campanula prenanthoides Overton 1979-7-25 OVERTON 9836 Humboldt Near Ammon Creek, on the Willow Creek quad., close to the town of Willow Creek 671 Comment
  SEINET10463114  Campanula prenanthoides Willis L. Jepson 1932-7-26 Jepson 16413 Humboldt BULL CREEK Comment
  SEINET10463130  Campanula prenanthoides Mcgregor 1921-8-17 MCGREGOR s.n. Humboldt ABANDONED ROAD GRADE, ORICK, "PLANTS OF REQUA" Comment
  SEINET10972390  Campanula prenanthoides Tracy 1908-6-27 TRACY 2859 Humboldt Valley of Van Duzen River; opposite Buck Mountain, in woods. 762 Comment
  HSC35938  Campanula scouleri Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2031 Humboldt French Camp, Bald Hills. Comment
  HSC56399  Campanula scouleri Griswold, Butler 1979-7-11 6978 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC58014  Campanula scouleri G. L. Clifton 1979-7-31 11815 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA12439  Campanula scouleri C. B. Wolf 1934-7-2 5854 Humboldt 2 miles from Bald Mt. on road to Korbel. Comment
  RSA456189  Campanula scouleri M. S. Baker 1947-8-10 11901 Humboldt 15 mi n.e. of Stoopa Pass. near end of forest road in Fir Forest. 1372 Comment
  SEINET10463440  Campanula scouleri Willis L. Jepson 1902-7-30 Jepson 2128 Humboldt THREE CREEKS TO REDWOOD CREEK 914 Comment
  JEPS53314  Cardamine breweri Joseph P. Tracy 1918-4-28 4891 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC1199206  Cardamine breweri J. P. Tracy 1901-3-31 997 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 Comment
  CAS-BOT-BC37418  Cardamine californica LeRoy Ellsworth Detling 1935-4-20 1642 Humboldt Lansdale Redwood Grove. Comment
  UC162639  Cardamine californica Harley P. Chandler May 1901 1091 Humboldt Idlewild near Dyerville (Humboldt Bay); North Coast Ranges, , Idlewild 152 Comment
  SEINET6914416  Cardamine californica var. integrifolia J. P. Tracy 1911-4-2 3171 Humboldt Immediate vicinity of Eureka, altitude 0-500 feet. Comment
  HSC60299  Cardamine nuttallii Phyllis Krieg 1979-5-8 Humboldt 0.25 mi. E of Old Arcata Rd. on Golf Course Rd., Bayside, next to a house 15 Comment
  HSC64134  Cardamine oligosperma J. P. Smith, J. O. Sawyer 1973-5-12 6692 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC6643  Cardamine oligosperma J. W. Johnson 1962-4-8 1219 Humboldt Arcata, Mad River Co. Park Comment
  CAS-BOT-BC384765  Cardionema ramosissimum Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  RSA286360  Cardionema ramosissimum R. F. Thorne 1974-7-29 45077 Humboldt Samoa Dunes. Comment
  UC1222954  Carduus tenuiflorus Joseph P. Tracy 1942-6-28 17266 Humboldt toward Hungry Hollow Angel's Ranch; Bald Mountain, Hungry Hollow Comment
  UC1222466  Carex amplifolia Joseph P. Tracy 1948-9-5 18193 Humboldt less than one mile s Grizzly Camp (head of Little Hors-Linto Creek); Trinity Summit, Little Hors-Linto Creek 1341 Comment
  JEPS109966  Carex arcta Dean W. Taylor 2006-8-3 19575 Humboldt Snow Camp Lake; northwestern end of the lake 1396 Comment
  POM247166  Carex arcta Joseph P. Tracy 1934-7-13 13389 Humboldt Dow s Prairie Comment
  SEINET11629975  Carex athrostachya J. P. Tracy 1950-1 18989 Humboldt NW slope of Buck Mountain, Burr Valley 1067 Comment
  UC562288  Carex barbarae Joseph P. Tracy 1932-6-14 10152 Humboldt Trinity River Valley at Willow Creek 152 Comment
  RSA244324  Carex barbarae Larry E. DeBuhr 1973-4-23 989 Humboldt Richardson Grove Redwood State Park. Comment
  CAS-BOT-BC19441  Carex bolanderi Joseph Prince Tracy 1935-6-23 13985 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  SEINET200966  Carex bolanderi Joseph P. Tracy 1935-6-23 13985 Humboldt Northern Coast Ranges French Camp Ridge. 1067 Comment
  UC562278  Carex bolanderi Joseph P. Tracy 1936-6-9 14912 1/2 Humboldt Upper Mattole 457 Comment
  RSA246870  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35128 Humboldt Wailaki Recreation site. 518 Comment
  CAS-BOT-BC110193  Carex buxbaumii Robert F. Thorne; P. Everett 1965-8-7 35182 Humboldt Big Lagoon. At south end of lagoon. 1 Comment
  HSC75766  Carex concinnoides Denis Kearns 1981-6-24 6 Humboldt Near Cedar Camp 1219 Comment
  UC1103598  Carex concinnoides Joseph P. Tracy 1926-6-27 7681 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC76382  Carex concinnoides L. P. Janeway 1982-6-8 2 Humboldt On ridge 1 mi. SE of Horse Mtn. along FS 6N36 1384 Comment
  CAS-BOT-BC34982  Carex densa Joseph Prince Tracy 1938-6-9 15877 Humboldt Dobbyn Creek. 152 Comment
  HSC103329  Carex densa Thomas W. Nelson, Jane Nelson 1982-7-11 7116 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  HSC34955  Carex densa Thomas W. Nelson 1975-5-24 1866 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1115813  Carex densa Joseph P. Tracy 1938-6-9 15877 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC34979  Carex densa Joseph Prince Tracy 1936-6-17 14953 Humboldt Northenr Coast Ranges. Buck Mountain, lower foothills of its northwestern slope. 762 Comment
  CAS-BOT-BC20078  Carex echinata Joseph Prince Tracy 1930-7-16 8986 Humboldt Northern Coast Ranges. South Fork Mountain. McKay Camp. 1676 Comment
  CAS-BOT-BC19965  Carex exsiccata Joseph Prince Tracy 1938-9-25 16170 Humboldt Bald Mountain: at Lake Prairie. 1066 Comment
  HSC99593  Carex feta K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 254 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET11630974  Carex feta J. P. Tracy 1950-1 19010 Humboldt Buck Mountain, 3 mi S of Burr Valley, on Albee Road 1158 Comment
  UC2015873  Carex feta Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4347 Humboldt Coast Range, Burr Valley area. 'False Burr Valley' Comment
  UC585645  Carex fracta Joseph P. Tracy 1937-7-25 15542 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  UC562713  Carex globosa Joseph P. Tracy 1929-6-3 8605 Humboldt Mouth of East Fork Northern Coast Ranges, Willow Creek Canyon 487 Comment
  SEINET7561248 Image available Carex harfordii David Castaner 1989-5-28 8067 Humboldt Patrick Point SP Area, Redwood Forest. Comment
  UC562724  Carex hendersonii Joseph P. Tracy 1933-5-28 12415 Humboldt Carlotta Northern Coast Ranges 60 Comment
  UC115803  Carex hoodii Joseph P. Tracy 1939-7-9 16343 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC35566  Carex jonesii Joseph Prince Tracy 1932-7-15 10573 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  HSC103361  Carex jonesii Thomas W. Nelson, Jane Nelson 1987-6-11 8597 Humboldt At trailhead and along trail to Grogans Hole 610 Comment
  RSA246648  Carex lenticularis var. limnophila Robert F. Thorne 1965-9-19 35461 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  CAS-BOT-BC31469  Carex leptopoda Charles Vancouver Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC48394  Carex leptopoda Brad Klipfel 1973-6-10 150 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC44035  Carex leptopoda Thomas W. Nelson, Jane P. Nelson 1977-7-1 3580 Humboldt Along road, N from Alder Springs 1463 Comment
  CAS-BOT-BC31583  Carex luzulina var. luzulina Joseph Prince Tracy 1942-6-28 17269 Humboldt In bog at Murphy Meadows, Bald Mountain. 975 Comment
  UC194811  Carex lyngbyei Joseph P. Tracy 1915-6-6 4646 Humboldt near mouth Elk River (region about Humboldt Bay); Northern Coast Region 0 Comment
  HSC102153  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1061 Humboldt Patterson Meadows 1555 Comment
  SEINET201051  Carex multicaulis J. P. Tracy 1927-3-27 7862 Humboldt Northern Coast Ranges Trinity River Valley near the South Fork 183 Comment
  UC1103567  Carex multicaulis Joseph P. Tracy 1936-6-10 14937 Humboldt w of mouth South Fork Trinity River; North Coast Ranges 457 Comment
  HSC48403  Carex multicostata Brad Klipfel 1973-6-10 95 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CHSC40167  Carex nudata L. P. Janeway 1984-4-20 732 Humboldt Levee on east side of Eel River near Fortuna at Sandy Prairie Road. 12 Comment
  UCR52378  Carex nudata L. P. Janeway 1984-4-28 751 Humboldt Garberville Q., West side of the South Fork of Eel River at Butte Creek, across the river from Miranda. 75 Comment
  CAS-BOT-BC119542  Carex nudata Doris K. Kildale 1929-5-26 9134 Humboldt Klamath River st Orleans. 152 Comment
  HSC48135  Carex nudata D. H. Norris 1971-7-17 19598 Humboldt Along Redwood House Rd., 4 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  CAS-BOT-BC119308  Carex obnupta Robert F. Thorne; P. Everett 1965-8-7 35199 Humboldt Big Lagoon, at edge of bog at S end of lagoon. Comment
  POM250761  Carex obnupta D. D. Keck 1938-8-5 4770 Humboldt Big Lagoon, among rocks in open spots on beach Comment
  CAS-BOT-BC119244  Carex pachystachya Joseph Prince Tracy 1939-7-9 16342 Humboldt Snow Camp 1402 Comment
  HSC73703  Carex pachystachya M. A. Baker 1980-7-22 3122 Humboldt Near Grogan Hole. 1676 Comment
  CAS-BOT-BC119238  Carex pachystachya Joseph Prince Tracy 1939-7-9 16316 Humboldt Bald Mt. In ditch one mile N of Murphy Meadows. 914 Comment
  CAS-BOT-BC116940  Carex subbracteata Joseph Prince Tracy 1936-6-9 14904 Humboldt Upper Matole. 121 Comment
  HSC7080  Carex subbracteata B. D. Rogers 1965-9-10 1014 Humboldt Humboldt State College Reservoir 61 Comment
  CAS-BOT-BC116909  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-22 4737 Humboldt Near Alder Point Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  RSA91641  Carex tumulicola Joseph P. Tracy 1932-5-1 9853 Humboldt Grassy open places at Redway. Vicinity of Garberville. 122 Comment
  CAS-BOT-BC115536  Carex unilateralis Joseph Prince Tracy 1938-7-5 16007 Humboldt Carlotta. Wet place in open flat by old Strong's District School House, 5 mi E of town. 45 Comment
  JEPS26002  Carex unilateralis Joseph P. Tracy 1938-7-5 16007 Humboldt old Strongs Distrcict School House, 5 miles E of town 45 Comment
  UC1152051  Carex utriculata Joseph P. Tracy 1950-7-25 19065 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC115064  Carex vesicaria Joseph Prince Tracy 1934-8-29 13622 Humboldt South Fork Mountain, in wet meadow and McKay Camp. 1676 Comment
  CHSC97051  Carex viridula subsp. viridula Gordon Leppig 1997-8-3 639 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common on northern edge. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  HSC96343  Carex viridula subsp. viridula Gordon Leppig 1999-10-3 1258 Humboldt Big Lagoon Bog, Big Lagoon County Park, N end of fen 3 Comment
  HSC90439  Carpobrotus chilensis Jean Hanson 1980-3-8 14 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka, SW shore 15 ft. from high tide line. Comment
  HSC69587  Carpobrotus edulis R. Kalal 1980-6-3 88 Humboldt Samoa Dunes, along Samoa Blvd. 6 Comment
  JEPS3288  Castilleja affinis subsp. litoralis C. R. Bell 1952-5-3 1324 Humboldt 1.8 mi s Trinidad (and 1.8 mi n of Little River, to the w of Highway 101) Comment
  HSC37966  Castilleja ambigua subsp. humboldtiensis Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  HSC90777  Castilleja ambigua subsp. humboldtiensis Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  OBI9388  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  HSC23104  Castilleja applegatei subsp. pinetorum D. E. Anderson 1965-5-8 3638 Humboldt N of Willow Creek along Rd. on E side of Trinity River Comment
  SEINET12288574  Castilleja douglasii H. P. Chandler 1901-1 1485 Humboldt North Coast Ranges, Klamath River 427 Comment
  CHSC95387  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Humboldt County. Manila Dunes ACEC. 3 Comment
  JEPS76826  Castilleja exserta subsp. latifolia L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4805 Humboldt beach of Manila Manila; Samoa Peninsula, beach at Manila Comment
  HSC35453  Castilleja exserta subsp. latifolia J. D. Ackerman 1975-8-2 623 Humboldt North Spit Humboldt Bay, W of Samoa, across from 2nd exit Comment
  HSC56234  Castilleja miniata Overton 1979-8-1 12314 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  HSC56307  Castilleja miniata Overton, Butler 1979-8-2 12624 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC56431  Castilleja miniata Griswold, Butler 1979-7-12 7139 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC213503  Castilleja miniata Joseph P. Tracy 1919-9-18 5228 Humboldt Trinity Summit; Northern Coast Ranges 1828 Comment
  CAS-BOT-BC244884  Castilleja miniata Thomas W. Nelson; Jane P. Nelson 1979-7-11 5032 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit Comment
  HSC44427  Castilleja pruinosa Brad Klipfel 1975-5-30 645 Humboldt Horse Mtn. Comment
  HSC71608  Castilleja pruinosa Gail Newton 1980-6-16 198 Humboldt Near Onion Mtn. 1280 Comment
  HSC103246  Castilleja pruinosa Lisa D. Hoover 1996-6-12 145 Humboldt Six Rivers National Forest, Lower Trinity District, Grouse Mtn. Quad, Horse Mtn. 1463 Comment
  JEPS103929  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7875 Humboldt 4.3 mi SE of junction of rt. 299 and Titlow Hill Rd. on way to Horse Mt. Comment
  JEPS16901  Castilleja pruinosa Rimo Bacigalupi with G. Thomas Robbins 1954-6-28 4652 Humboldt 7.3 mi n Willow Creek (above Trinity River, above road between Willow Creek and Hoopa Valley); Six Rivers National Forest 274 Comment
  HSC40666  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2933 Humboldt Along 5E27 at its junction with 1S07 1555 Comment
  UC502951  Ceanothus cordulatus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8952 Humboldt near Blake Lookout (South Fork Mt.); Northern Coast Ranges Comment
  OBI35865  Ceanothus cuneatus var. cuneatus David J. Keil 1983-7-2 17328 Humboldt Horse Mtn Summit SW of Willow crk 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
  HSC37592  Ceanothus foliosus var. vineatus R. Sutherland 1975-5-17 0 .17575 Humboldt Edge of Horse Mtn. 534 Comment
  CAS-BOT-BC50051  Ceanothus incanus H. E. McMinn 1922-7-1 382 Humboldt S. Fk. Eel River Comment
  HSC37053  Ceanothus incanus R. Sutherland 1975-5-26 1 .26575 Humboldt 305 Comment
  UC1193320  Ceanothus incanus P. Zinke 1950-8-4 150 Humboldt 2 mi n Harris Postoffice; Quad. 29D3 883 Comment
  HSC55349  Ceanothus integerrimus Griswold, Butler 1979-7-12 7255 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UCR270274  Ceanothus integerrimus John F. Emmel 2003-7-30 1800 Humboldt near southeast boundary of Redwood National Park, Bald Hills Road, 19.5 road miles SE of Hwy 101 960 Comment
  CAS-BOT-BC51145  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  SBBG116557  Ceanothus oliganthus var. sorediatus D. H. Wilken 2003-7-22 16174 Humboldt near Windy Nip Gap, Mattole Rd, 1.5 km SW of Cathy's Pk 670 Comment
  HSC43183  Ceanothus parryi R. Sutherland 1975-7-5 12 .5775 Humboldt 244 Comment
  JEPS42371  Ceanothus parryi W. L. Jepson 1902-6-20 1906 Humboldt s Camp Grant (Hubbard's Station) 243 Comment
  HSC44398  Ceanothus pumilus Brad Klipfel 1975-5-24 633 Humboldt Horse Mtn. Comment
  BLMAR660  Ceanothus thyrsiflorus Andrew Maguire 2012-5-21 660 Humboldt King range, Smith-Etter road 320 Comment
  CAS-BOT-BC52223  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11089 Humboldt Summit of Trinidad Head 45 Comment
  CAS-BOT-BC52951  Ceanothus thyrsiflorus Joseph P. Tracy 1937-5-30 15317 Humboldt Bridgeville 198 Comment
  CAS-BOT-BC52997  Ceanothus thyrsiflorus Harold Paul Olmo 1934-6-8 s.n. Humboldt 5 miles n. of Trinidad Comment
  HSC18328  Ceanothus thyrsiflorus J. F. Knezevich 1968-5-14 442 Humboldt 11 mi. S of Ferndale on rd. to Cape Mendocino 305 Comment
  HSC27613  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 3 .28575 Humboldt Tolkan Recreation Site 488 Comment
  HSC31463  Ceanothus thyrsiflorus Steve Selva, Roger Jensen 1974-8-28 100 Humboldt Behind HSU Campus Comment
  CDA36065  Ceanothus thyrsiflorus CDFA Staff 1983-5-9 Humboldt Near South Jetty of Humboldt Bay. 0 Comment
  CAS-BOT-BC52861  Ceanothus velutinus Doris K. Kildale 1926-4-25 1812 Humboldt Hoopa Mountain 304 Comment
  JEPS42318  Ceanothus velutinus W. L. Jepson 1902-6-28 1949 Humboldt near Redwood Creek (High ridge, Acorn P.O. to Green Point Ranch) 1066 Comment
  UC673087  Centaurea calcitrapa Joseph P. Tracy 1940-10-17 16760 Humboldt near Dyerville (South Fork Station) 45 Comment
  HSC37691  Centaurea solstitialis R. Sutherland 1976-8-18 5 .18876 Humboldt In the town of Briceland 192 Comment
  OBI14120  Centaurium erythraea Joseph P. Tracy 1948-9-26 18236 Humboldt Fickle Hill, 6 mi SE of Arcata Comment
  UC566944  Centaurium muehlenbergii H. L. Mason 1928-7-14 4903 Humboldt near Garberville; East Fork of Eel River Comment
  CDA38373  Centaurium tenuiflorum E. C. Whitney 1976-9-7 s.n. Humboldt Loleta. 0 Comment
  HSC103128  Cephalanthera austiniae M. Mesler 2009-7-31 812 Humboldt South Fork Mtn. FS 1, 11.8 miles north of intersection with 4N12, just north of mile marker 34. 1486 Comment
  UC1196465  Cephalanthera austiniae Joseph P. Tracy 1914-7-5 4577 Humboldt between High Prairie and Snow Camp (Bald Mt.); Northern Coast Ranges, Bald Mt. 1219 Comment
  UC1196470  Cephalanthera austiniae Joseph P. Tracy 1932-7-20 10734 Humboldt Trinity Summit near Corral Prairie; Trinity Summit 1584 Comment
  BLMAR202  Cephalanthera austiniae Jennifer Anthony-Wheeler 1996-7-9 202 Humboldt Pilot ridge. 1280 Comment
  CAS-BOT-BC388225  Cerastium glomeratum Alice Eastwood 1907-4-21 15 Humboldt Port Trinidad Comment
  HSC14640  Cercis occidentalis J. R. Eichelberger 1964-4-10 31 Humboldt 7 mi. N of Willow Creek on Hwy. 96. Comment
  UC492185  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1929-4-14 8538 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  HSC91616  Chamaecyparis lawsoniana Susan H. Bicknell 1987-8-29 Humboldt Patrick's Point State Park, near Penn Creek Comment
  CAS-BOT-BC68267  Cheilanthes gracillima Lincoln Constance; Reed C. Rollins 1942-5-12 2881 Humboldt Klamath-Siskiyou Region - Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  HSC73665  Cheilanthes gracillima M. A. Baker 1980-7-15 2965 Humboldt Near Whiting Ridge. 1341 Comment
  RSA685760  Cheilanthes gracillima Henry M. Pollard 1948-7-24 s.n. Humboldt Near Orleans. Comment
  UCD97746  Chenopodium album Linda M. Barker 1976-6-22 1629 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UC1225781  Chenopodium murale Joseph P. Tracy 1948-1-11 17949 Humboldt Eureka 30 Comment
  CAS-BOT-BC451497  Chimaphila umbellata L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road Comment
  UC116156  Chimaphila umbellata Harley P. Chandler June, 1901 1398 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  CAS-BOT-BC451494  Chimaphila umbellata Milo S. Baker 1947-8-10 11899 Humboldt 15 mi. NE of Hoopa near end of forest road 1371 Comment
  CHSC20344  Chloris truncata D. E. Anderson 1970-1-20 Humboldt In the Humboldt State College Greenhouses. Seed source: Australia. Comment
  RSA302606  Chrysanthemum leucanthemum J. R. Shevock 1972-7-26 2230 Humboldt Hwy. 299 305 Comment
  CAS-BOT-BC30125  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1934-8-29 13641 Humboldt Northern Coast Ranges. South Fork Mountain, along summit near Blake lookout 1706 Comment
  SD42299  Chrysolepis sempervirens Carl B. Wolf 1937-9-13 3089 Humboldt North Coast Range, Summit of Grouse Mountain. 1645 Comment
  UC667993  Chrysolepis sempervirens Joseph P. Tracy 1937-7-29 15583 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC154073  Chrysosplenium glechomifolium J. P. Tracy 1905-3-5 2147 Humboldt immediate vicinity Eureka 0 Comment
  UC1198515  Circaea alpina subsp. pacifica Joseph P. Tracy 1935-7-23 14159 Humboldt lower end Brett Hole (Trinity Summit); Trinity Summit 1584 Comment
  JEPS11944  Cirsium arvense Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-11 4757 Humboldt 0.5 mi n Mad River bridge (n of Arcata, in field along U.S. Highway 101); U.S. Highway 101 Comment
  UC582529  Cirsium arvense Joseph P. Tracy 1933-8-13 12962 Humboldt Arcata Bottom 15 Comment
  UCR48593  Cirsium arvense R. D. Goeden, Don W. Ricker 1987-9-2 870902- 15 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  SD113204  Cirsium arvense Darley F. Howe 1959-8-4 2800 Humboldt 78.5 miles west of Weavervilleon. Comment
  HSC89523  Cirsium brevistylum M. Roantree 1985-6-11 88 Humboldt W side of Trinidad Head Comment
  JEPS23566  Cirsium brevistylum Peter H. Raven, R. Snow 1958-7-20 13648 Humboldt 0.7 mi s U.S. Highway 299 (along Titlow Hill Road); Titlow Hill Road Comment
  CHSC97934  Cirsium cymosum T. R. Haig 1960-6-16 Humboldt Near quarry at Kneeland. Comment
  HSC47962  Cirsium douglasii var. breweri Brad Klipfel 1974-8-2 518 Humboldt Horse Mtn. Comment
  CAS-BOT-BC285532  Cirsium occidentale var. candidissimum Doris K. Kildale 1928-6-24 5274 Humboldt Horse Mountain 914 Comment
  UC176304  Cirsium occidentale var. candidissimum Joseph P. Tracy 1912-7-26 3854 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC97973  Cirsium occidentale var. candidissimum Cara Witte 2007-6-21 318 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1390 Comment
  UC1199137  Cirsium occidentale var. venustum Joseph P. Tracy 1936-7-5 15045 Humboldt Horse Mt. 1066 Comment
  RSA0070881  Cirsium remotifolium A. K. Kellogg, W. G. W. Harford 1868-1 558 Humboldt [Unspecified] Comment
  UC668207  Cirsium remotifolium var. rivulare Joseph P. Tracy 1938-7-5 15999 Humboldt 5 mi e of town Carlotta (open flat by old Strong's District School House) 45 Comment
  HSC32535  Cirsium vulgare Thomas W. Nelson 1973-9-3 1127 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC68157  Cirsium vulgare J. P. Smith 1971-10-6 4972 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1119201  Cirsium vulgare H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quadrangle, Fieldbrook Comment
  UC179915  Cirsium vulgare Joseph P. Tracy 1914-9-13 4629 Humboldt Eureka 0 Comment
  HSC89489  Cirsium vulgare P. A. Daly 1986-2-28 65 Humboldt Trinidad Head, along trail 61 Comment
  UCR123961  Clarkia affinis 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
  UC1222854  Clarkia amoena Joseph P. Tracy 1951-6-30 19601 Humboldt Trinity Highway, at Berry's North Coast Ranges, Redwood Creek 274 Comment
  UC144096  Clarkia amoena Joseph P. Tracy Jun 27 1908-Jun 30 1908 2757 Humboldt nw slope Buck Mountain (at bridge across river); Northern Coast Ranges, Little Van Duzen River 609 Comment
  CAS-BOT-BC160952  Clarkia amoena subsp. amoena Doris K. Kildale 1927-7-17 3749 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC160968  Clarkia amoena subsp. amoena C. Hart Merriam 1922-6-1 s.n. Humboldt Fortuna Comment
  POM271818  Clarkia amoena subsp. huntiana Lyman Benson 1929-7-19 1865 Humboldt Dyerville to Matole River. Comment
  RSA13761  Clarkia amoena subsp. huntiana Carl B. Wolf 1927-8-29 1199 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  RSA0059979  Clarkia amoena subsp. whitneyi C. L. Hitchcock, J. S. Martin 1939-7-14 5432 Humboldt 1 mile east of Shelter Cove Comment
  CAS-BOT-BC164176  Clarkia concinna M. S. Jussel 1931-5-2 s.n. Humboldt Near Garberville Comment
  RSA244979  Clarkia concinna subsp. concinna B. D. Rogers, W. J. Ferlatte 1966-6-15 2105 Humboldt Larabee Valley 762 Comment
  UC183772  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1912-7-31 3907 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  RSA299017  Clarkia gracilis subsp. sonomensis Lincoln Constance 1934-5-23 618 Humboldt South Fork Eel River: upper end of Look Prairie 366 Comment
  UC1196977  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1938-7-4 15984 Humboldt Valley of South Yager Creek 762 Comment
  POM208995  Clarkia purpurea subsp. quadrivulnera Lincoln Constance 1934-5-23 619 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park. 366 Comment
  UC144068  Clarkia rhomboidea Joseph P. Tracy July, 1908 2763 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 762 Comment
  SEINET196688  Claytonia cordifolia H. E. Parks, JP Tracy 1949-6-25 11680 Humboldt Trinity Summit at Box Camp 1460 Comment
  HSC17755  Claytonia exigua subsp. exigua D. E. Anderson 1963-5-19 2467 Humboldt About 1 mi. S of Kneeland school 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
  UC494168  Claytonia perfoliata subsp. perfoliata H. E. Parks, J. P. Tracy 1930-5-25 877 Humboldt Laribee Valley Comment
  CAS-BOT-BC440091  Claytonia perfoliata subsp. perfoliata J. M. Miller 1974-6-3 367 Humboldt Horse Mountain, ca. 150 m N. of the junction between Forest Rds. 5N10 and 6N01. On the road shoulder of 5N10. 1371 Comment
  CAS-BOT-BC440095  Claytonia perfoliata subsp. perfoliata J. H. Thomas 1949-6-13 922 Humboldt Along Klamath River, about 1 mile north of town of Orleans. Comment
  HSC17695  Claytonia rubra subsp. depressa S. J. Hawks 1965-2-12 3 Humboldt N end of Eureka Airport Comment
  HSC100606  Claytonia sibirica Carl C. Marshall Mar 1886 150 Humboldt Everywhere. Comment
  HSC64327  Claytonia sibirica J. P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SBBG69718  Claytonia sibirica L. Rowntree 1931-7-21 Humboldt near Ferndale Comment
  UC535735  Claytonia sibirica Eleanor Armstrong 1162 Humboldt Richardson Grove Comment
  CAS-BOT-BC443889  Claytonia sibirica C. D. Duncan 1920-9-27 s.n. Humboldt Supply Creek Canon [Canyon] near Hoopa Comment
  SEINET11931359  Claytonia sibirica Unknown 1977-1 2 Humboldt S end of Patricks Point State Park, ca 0.2 km W of hwy 101 & 5 km N of Trinidad 200 Comment
  SEINET202283  Claytonia sibirica J. P. Tracy 1950-7-2 18960 Humboldt Fern Spring Happy Camp Mt. in Trinity Summit Range 6 mi NE of Hawkins Bar 1280 Comment
  HSC100899  Claytonia triphylla Carl C. Marshall Jun 1886 300 Humboldt Trinity Summit. Comment
  UC668071  Clematis ligusticifolia Joseph P. Tracy 1937-8-3 15608 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  HSC100554  Clintonia andrewsiana Carl C. Marshall May 1885 69 Humboldt Redwood forests. Comment
  HSC59739  Clintonia andrewsiana Clark L. Miller 1979-5-15 1132 Humboldt Jolly Giant Creek behind HSU dorms Comment
  JEPS61601  Clintonia andrewsiana W. L. Jepson 1921-9-11 9462 Humboldt n of Garberville Comment
  UCD139622  Clintonia andrewsiana T. E. Weier 1942-5-22 s.n. Humboldt near Dyerville, Highway 101. Comment
  HSC98773  Clintonia uniflora Cara Witte 2008-7-7 840 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  CDA3701  Coincya monensis Jim Belsher 1997-2-13 2 Humboldt Lot ESE of the Manila Community Services District sewage pump station Comment
  HSC75449  Collinsia grandiflora J. O. Sawyer 1980-7-18 3583 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC96285  Collinsia grandiflora J. Breton, A. Livingston 2005-6-10 8 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NFl 1357 Comment
  HSC32318  Collinsia greenei D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5653 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC366914  Collinsia linearis V. Rattan Jun 1879 Humboldt Hoopa Valley Comment
  CAS-BOT-BC412799  Collinsia linearis David D. Keck 1948-7-2 5999 Humboldt Ridge east of Redwood Creek on road to Willow Creek. On US Route 299 609 Comment
  UC582455  Collinsia linearis Joseph P. Tracy 1936-6-10 14931 Humboldt South Fork of Trinity River, slopes w of its mouth South Fork of Trinity River 457 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
  HSC60032  Collinsia rattanii M. A. Baker 1978-5-6 504 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC100660  Collinsia rattanii Carl C. Marshall Jul 1887 414 Humboldt Spruce Grove. Comment
  RSA0117229  Collinsia rattanii S. S. Tillett 1956-7-6 623 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  UC582445  Collinsia torreyi var. wrightii Joseph P. Tracy 1930-7-17 9014 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  JEPS71020  Collomia grandiflora Joseph P. Tracy 1932-7-13 10501 Humboldt open places Trinity Summit, Corral Prairie 1584 Comment
  HSC70776  Collomia heterophylla R. York 1980-5-17 551 Humboldt Near Le Perron Peak. 415 Comment
  HSC89514  Collomia heterophylla M. Roantree 1985-4-28 20 Humboldt W side of Trinidad Head, along trail Comment
  UC52553  Collomia heterophylla Mrs. M. H. Manning May 1902 Humboldt near Hupa Comment
  HSC45803  Collomia heterophylla J. P. Smith, J. O. Sawyer 1976-5-2 8629 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 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
  UC908768  Collomia heterophylla P. B. Kennedy 1929-6-14 Humboldt California Barrel Company Range Arcata Comment
  HSC16936  Collomia tracyi J. P. Tracy 1927-6-12 8161 Humboldt Horse Mtn. 1067 Comment
  HSC45409  Collomia tracyi Thomas W. Nelson, Jane Nelson 1977-6-19 3513 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  UC1197865  Collomia tracyi Joseph P. Tracy 1939-8-16 16416 Humboldt gravelly places near Clear Lake; North Coast Ranges 1524 Comment
  HSC27899  Conium maculatum B. R. Templeton 1962-5-15 Humboldt 3 mi S of Arcata Comment
  HSC6352  Convolvulus arvensis Lincoln Constance 1934-5-27 692 Humboldt S Fork of Eel River, S end of Dyerville Bridge 46 Comment
  CAS-BOT-BC286025  Conyza canadensis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  RSA0049662  Coptis laciniata Dean Wm. Taylor 2011-5-4 21115 Humboldt Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junciton with Highway 36 734 Comment
  HSC104334  Coptis laciniata James Regan, Humboldt Redwood Co., LLC 2009-4-1 33 Humboldt Snow Camp Rd., Bald Mtn. Creek Comment
  HSC40272  Corallorhiza maculata J. D. Ackerman 1976-7-8 772 Humboldt 0.25 mi. E of Hwy. 299 on Chezem Rd. Comment
  HSC54018  Corallorhiza mertensiana Griswold, Butler 1979-7-12 7162 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC16583  Corallorhiza mertensiana Doris K. Kildale 1926-5-2 1846 Humboldt Bald Mtn. road, between Bald Mtn. House and junction of Redwood Creek Road. Comment
  JEPS93181  Cordylanthus maritimus subsp. palustris Margriet Wetherwax and Kevin Downing 1993-8-9 2462 Humboldt N of Eureka, along N side of Eureka Slough; Jacobs St. turn-off of 101N just beyond bridge over slough; between two Peterbilt warehouses; population extends sporadically to Johns Used and Crashed Cars 5 Comment
  UC1223040  Corethrogyne filaginifolia Joseph P. Tracy 1947-7-7 17759 Humboldt mouth of (n side) Mad River Comment
  RSA286351  Corethrogyne filaginifolia var. californica R. F. Thorne 1974-7-29 45073 Humboldt Samoa Dunes. Comment
  CAS-BOT-BC212019  Cornus nuttallii Carl B. Wolf 1927-8-28 1165 Humboldt In the valley of the Hoopa Indian Reservation. Comment
  RSA0019453  Cornus occidentalis C. B. Wolf 1937-8-13 9251 Humboldt North Coast Range, 11 mi. E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC100454  Cornus pubescens Carl C. Marshall Jun 1886 322 Humboldt Mad River. Comment
  HSC41000  Cornus sericea subsp. sericea J. O. Sawyer 1975-10-17 2710 Humboldt S slopes of N Trinity Mtn. Comment
  UC668289  Cornus sericea subsp. sericea Joseph P. Tracy 1937-7-24 15518 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  CAS-BOT-BC210543  Cornus sessilis Henry M. Pollard 1945-9-1 s.n. Humboldt Road to Redcap Creek, near Orleans Comment
  HSC70754  Cornus sessilis R. York 1980-5-17 529 Humboldt Near Le Perron Peak. 415 Comment
  HSC93465  Cortaderia selloana Gordon Leppig, Kai Neander 1998-10-12 1104 Humboldt McKinleyville, empty lot on School Rd., behind Mill Creek Shopping Center 30 Comment
  UC1197932  Corylus californica Joseph P. Tracy 1923-8-19 6538 Humboldt Lawrence Creek near Kneeland Prairie Comment
  HSC76056  Corylus cornuta subsp. californica Overton, Butler 1979-8-2 12590 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  SBBG62533  Cotula coronopifolia H. E. Parks -Sep-1941 24211 Humboldt Little River State Park Comment
  SEINET3817858  Cotula coronopifolia H. E. Parks 24211 Humboldt Little River State Park Comment
  SEINET13729302  Crassula aquatica Unknown 1912-6-9 3689 Humboldt Plants of Northern Coast Region of Califonia In muddy ground. ALTON, HUMBOLDT COUNTY Altitude 100 to 300 Comment
  UC1198826  Crassula connata var. erectoides Joseph P. Tracy 1922-4-30 6027 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC1116211  Crassula connata var. eremica Joseph P. Tracy 1948-5-31 18013 Humboldt Alder Point 304 Comment
  POM301287  Crataegus suksdorfii Joseph P. Tracy 1948-9-12 18205 Humboldt Box Camp Meadow, Trinity summit. 1463 Comment
  RSA125671  Crataegus suksdorfii E. K. Balls 1957-5-25 22602 Humboldt Hwy 36, Van Duzen River, W of Trinity Humboldt County Line. 732 Comment
  HSC57662  Crepis acuminata G. L. Clifton, Griswold 1979-7-25 10838 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC48026  Crepis acuminata Brad Klipfel 1974-6-25 424 Humboldt Horse Mtn. Comment
  RSA47145  Crepis capillaris Doris K. Kildale 1925-7-17 1073 Humboldt Eureka- Cutter tract Comment
  HSC73641  Crepis pleurocarpa M. A. Baker 1980-7-23 3136 Humboldt Near Orleans Mtn. 1859 Comment
  UC581732  Crepis pleurocarpa Joseph P. Tracy 1935-7-28 14332 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  HSC44131  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3599 Humboldt Along old trail N of Alder Spring 1555 Comment
  HSC98848  Crepis pleurocarpa Cara Witte 2008-7-11 871 Humboldt National Forest Road 6N36. 1/4 mile from intersection with National Forest 1. 1443 Comment
  POM356344  Crepis setosa H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  HSC57921  Cryptantha affinis Gilbert Muth 1979-7-31 11542 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC58047  Cryptantha affinis G. L. Clifton, Griswold 1979-8-1 11906 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC99133  Cryptantha affinis Cara Witte 2007-5-29 139 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  SEINET12280692  Cryptantha affinis J. P. Tracy 1950-1 18956 Humboldt Friday Ridge 1219 Comment
  UC594155  Cryptantha flaccida S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3424 Humboldt nw slopes Buck Mountain 822 Comment
  HSC99128  Cryptantha torreyana Cara Witte 2008-7-2 796 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  UC525612  Cryptantha torreyana Joseph P. Tracy 1933-8-30 13024 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  JEPS67872  Cryptantha torreyana Joseph P. Tracy 1921-6-19 5841 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC562475  Cuscuta campestris Joseph P. Tracy 1925-12-13 7337 Humboldt Big Lagoon 3 Comment
  HSC63843  Cuscuta occidentalis M. Baker 1979-6-26 913 Humboldt Comment
  HSC95576  Cuscuta pacifica var. pacifica Andrea Pickart 2002-8-8 190 Humboldt Arcata Marsh at end of I st. 0 Comment
  HSC63068  Cuscuta salina David Wheeler 1979-5-28 151 Humboldt S end of sewage oxidation ponds Comment
  RSA249518  Cuscuta salina R. F. Thorne, P. C. Everett 1965-8-7 35206 Humboldt Samoa Peninsula. 0 Comment
  UC1197869  Cuscuta subinclusa Doris Kildale 1926-9-6 Humboldt Lasseck Peak Comment
  HSC65846  Cycladenia humilis Gail Newton 1980-7-22 1655 Humboldt Near Devils Backbone 1554 Comment
  UC154093  Cyclospermum leptophyllum Joseph P. Tracy 1900-9-10 944 Humboldt near Hydesville; Northern Coast Region 60 Comment
  RSA67017  Cynoglossum grande E. K. Balls 1951-5-9 16516 Humboldt ca. 5 miles S of Richardson s Grove, Highway 101. Comment
  UC1239628  Cynoglossum grande Joseph P. Tracy 1927-4-10 7902 Humboldt near the s. fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  POM313169  Cynosurus cristatus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1195 Humboldt Southern outskirts of Eureka Comment
  BLMAR144  Cynosurus echinatus Donald Hazlett 1994-6-7 144 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC190381  Cynosurus echinatus Kenneth Clark 1980-3-22 523 Humboldt Above Dead Man's Gulch. 137 Comment
  HSC45050  Cynosurus echinatus R. Sutherland 1978-4-24 3 .24478 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  OBI22352  Cynosurus echinatus Joseph P. Tracy 1941-6-29 16920 Humboldt McClellan Mt Comment
  SEINET200939 Image available Cynosurus echinatus Joseph P. Tracy 1947-6-8 17708 Humboldt Carlotta 5 miles east of town by old Strong's District School House [Coordinates estimated along highway] 61 Comment
  UC1145093  Cynosurus echinatus Joseph P. Tracy 1944-7-3 17486 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  BLMAR416  Cyperus eragrostis Jennifer Wheeler 2007-8-29 416 Humboldt South Spit, East side of road near bay 9 Comment
  UC668032  Cyperus eragrostis Joseph P. Tracy 1935-7-17 14099 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC1103634  Cyperus strigosus Joseph P. Tracy 1920-8-15 5377 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  HSC1045  Cystopteris fragilis D. E. Anderson 1965-5-15 3713 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC55183  Cystopteris fragilis G. L. Clifton, Griswold 1979-8-2 12217 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC89606  Cytisus scoparius M. Roantree 1985-5-7 44 Humboldt E side of Trinidad Head Comment
  RSA783324  Cytisus scoparius R. R. Halse 2010-3-25 7856 Humboldt Along US Hwy 101 ca. 9.7 miles S of Orick. 5 Comment
  UC303181  Cytisus scoparius Joseph P. Tracy 1923-6-18 6289 Humboldt Petrolia; Northern Coast Ranges 60 Comment
  HSC14664  Cytisus scoparius var. andreanus W. F. Nickel 1965-5-17 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir, near Jolly Giant Parking Lot. Comment
  CAS-BOT-BC189768  Dactylis glomerata Doris K. Kildale; J. W. Gillespie 1929-6-25 8390 Humboldt Pines Pasture, Eureka. 30 Comment
  HSC9535  Dactylis glomerata R. H. Berg 1963-2-23 2 Humboldt Fickle Hill area, Arcata Comment
  HSC102211  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1126 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC102635  Danthonia californica M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1620 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1103255  Danthonia californica Joseph P. Tracy 1926-7-5 7727 Humboldt Valley of South Yager Creek Comment
  RSA10086  Danthonia californica var. americana Joseph P. Tracy 1931-5-31 9548 Humboldt Kneeland Prairie 793 Comment
  UC526683  Danthonia californica var. americana Joseph P. Tracy 1927-7-4 8234 Humboldt Lone Star Creek North Coast Ranges, Iaqua 609 Comment
  CHSC35545  Danthonia californica var. californica James Payne Smith Jr. 1977-7-3 9231 Humboldt Road to Fish Lake (Forest Service Road 13N01), 3.5 miles from its junction with State Route 36. 487 Comment
  HSC46019  Daucus carota Catherine Chin 1978-8-5 94 Humboldt 7th & A St., Arcata Comment
  UCR224652  Daucus carota Dean Kelch 2007-7-25 07- 508 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  UC1197346  Daucus pusillus Joseph P. Tracy 1927-6-26 8211 Humboldt Stone Lagoon sand beach 6 Comment
  UC1197354  Daucus pusillus J. P. Tracy 1907-7-4 2579 Humboldt 1/2 mi. n. mouth of Little River Comment
  HSC96618  Delairea odorata Gordon Leppig 2005-4-8 2204 Humboldt N spit, S end of Peninsula Dr. 3 Comment
  HSC36240  Delphinium decorum subsp. tracyi John Rehling 1975-5-12 71 Humboldt Bald Hills Area, 2 mi. up Williams Ridge Rd. 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
  RSA296867  Delphinium decorum subsp. tracyi Joseph P. Tracy 1918-5-28 4941 Humboldt High Prairie on Bald Mtn. Comment
  UC160933  Delphinium nudicaule Joseph P. Tracy 1908-6-8 2635 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CHSC35593  Delphinium nuttallianum Thomas W. Nelson 1980-6-10 5443 Humboldt Six Rivers National Forest. Along branch road off Swayback Ridge Road ca. 1/2 mile east of junction. 1371 Comment
  CAS-BOT-BC121962  Delphinium trolliifolium Doris K. Kildale 1928-5-15 6018 Humboldt Bug Creek, Chaparral Mountain 914 Comment
  HSC99024  Delphinium trolliifolium Cara Witte 2008-7-16 909 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1196334  Delphinium trolliifolium Joseph P. Tracy 1947-4-27 17675 Humboldt Table Bluff 60 Comment
  CAS-BOT-BC121969  Delphinium trolliifolium Carl B. Wolf 1937-6-14 8827 Humboldt 1 1/2 mi. N of Kneeland Prairie 822 Comment
  HSC99633  Delphinium trolliifolium Allan R. Marshall 1962-5-11 10 Humboldt 50 yds. in front of N side of Hwy. 299 610 Comment
  POM299320  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon near Orick Comment
  UC13904  Delphinium trolliifolium W. C. Blasdale 1896-6-7 Humboldt Graham's Ranch Comment
  CAS-BOT-BC16944  Delphinium variegatum subsp. variegatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  SEINET3927146  Deschampsia cespitosa Joseph P. Tracy 1912-7-14 3750 Humboldt Northern Coast Region of California. Eureka.; 0 61 Comment
  UCSC000008  Deschampsia cespitosa Randall Morgan 2005-6-24 s.n. Humboldt 1 mi W of Bayside - Eureka 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-BC201778  Deschampsia elongata Doris K. Kildale 1928-7-1 5309 Humboldt French Camp - Bald Hills - Orick - Martin's ferry road Comment
  HSC24253  Deschampsia elongata D. E. Anderson 1970-5-21 5081 Humboldt Scotia bluffs. Comment
  RSA126941  Deschampsia elongata H. S. Yates 1936-6-17 5706 Humboldt Lower northwest slope of Buck Mountain 793 Comment
  UC526673  Deschampsia elongata Joseph P. Tracy 1932-7-14 10552 Humboldt Corral Prairie, Trinity Summit, Klamath Mts. Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  HSC22052  Dicentra formosa B. D. Rogers, D. E. Anderson 1965-4-1 414 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  BLMAR696  Dicentra formosa Jennifer Wheeler 2011-5-23 696 Humboldt Lacks Creek, Bair Rd. about one mile from Hwy. 300 426 Comment
  HSC99360  Dicentra formosa subsp. formosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 9 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC402410  Dicentra formosa subsp. formosa Milo S. Baker 1923-7-15 7 Humboldt Eureka Swamp, spot near Hayes and M. Sts. Comment
  CAS-BOT-BC253636  Dichanthelium acuminatum subsp. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt Bank of S Fork Eel River at Highway 101, 5 miles S of Garberville Comment
  UC176624  Dichelostemma X venustum Joseph P. Tracy 1913-6-26 4351 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UC1281812  Dichelostemma capitatum Richard Spellenberg 1965-6-14 1121 Humboldt about 2 mi e Kneeland; Kneeland Prairie Comment
  HSC97477  Dichelostemma capitatum subsp. capitatum Cara Witte 2007-5-21 65 Humboldt White Oak Opening. 1257 Comment
  UC666911  Dichelostemma ida-maia Joseph P. Tracy 1927-5-30 8083 Humboldt Garberville 152 Comment
  UC1198181  Dichelostemma ida-maia Joseph P. Tracy 1947-5-10 17684 Humboldt Miranda South Fork of Eel River 121 Comment
  CDA6260  Digitalis purpurea T. C. Fuller 1958-6-17 1725 Humboldt Petrolia, Lower Mattole. 0 Comment
  UC212865  Digitaria sanguinalis Joseph P. Tracy 1919-9-13 5195 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley nr Willow Creek 152 Comment
  POM319490  Disporum smithii Patricia Wilder 1968-8-22 4424 Humboldt Coastal rain forest 7 miles S of Ferndale on Mattole Road, N of Cape Mendocino and Capetown, Mt. Range: Bear River Ridge; Drainage Area: Oil Creek to Pacific. 549 Comment
  RSA1088  Disporum smithii E. R. Johnson 1928-8-26 1148 Humboldt Arcata. Comment
  SEINET3885742  Disporum smithii H. E. Parks, S. T. Parks 1952-1 24452 Humboldt Spruce Cove, Trinidad.; 0 61 Comment
  UC1222543  Disporum smithii Joseph P. Tracy 1951-6-14 19418 Humboldt Snow Camp 1402 Comment
  UCR67631  Disporum smithii Michael A. Hanson 1990-5-21 70 Humboldt Arcata, 0.5 mi (0.8 km) east of Humboldt State University Life Science Building. 159 Comment
  SEINET4170364  Disporum smithii Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15086 Humboldt Under Redwood, Bolling Grove State Park Comment
  CDA18241  Distichlis spicata G. D. Barbe, T. C. Fuller 1974-6-19 1879 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 7 Comment
  CHSC56629  Distichlis spicata L. P. Janeway 1983-9-24 703 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground. 3 Comment
  HSC26357  Distichlis spicata T. O. Osborne 1970-6-18 55 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  HSC90915  Distichlis spicata Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, Saltmarsh trail. Comment
  UC38073  Distichlis spicata Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5604 Humboldt Arcata Comment
  RSA46481  Dodecatheon hendersonii Doris K. Kildale 1927-3-20 2908 Humboldt Phillipsville Comment
  UC1198620  Dodecatheon hendersonii Joseph P. Tracy 1922-5-14 6046 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  BLMAR622  Dodecatheon hendersonii Jennifer Wheeler 2011-6-1 622 Humboldt Lacks Creek, Pine Ridge Rd, entry to firewood cutting area 975 Comment
  UC562752  Dodecatheon hendersonii Joseph P. Tracy 1927-5-15 8061 Humboldt near summit on road w from Hoopa to Bair's (Hoopa Mountain); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC82394  Dodecatheon jeffreyi Thomas W. Nelson 1979-7-11 5007 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1199494  Downingia elegans Joseph P. Tracy 1933-4-30 13053 Humboldt Grouse Mountain Northern Coast Ranges 1524 Comment
  UC34954  Downingia elegans Chesnut and Drew 1888-7-10 Humboldt near Jarnigan's Comment
  HSC74471  Draperia systyla Gail Newton 1980-7-23 1739 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC103110  Drosera rotundifolia M. Mesler 2010-7-15 833 Humboldt Near Blake Mtn, FS rd N01 off rd 4N12 Comment
  HSC18756  Drymocallis glandulosa Lincoln Constance 1934-6-15 878 Humboldt Summit of Grasshopper Peak, S Fork Eel River, Bull Creek region 976 Comment
  HSC38525  Drymocallis glandulosa D. E. Anderson, J. P. Smith 1971-6-18 1071 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  CAS-BOT-BC159612  Drymocallis glandulosa var. glandulosa C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC76190  Drymocallis glandulosa var. reflexa Overton, Butler 1979-7-24 9773 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  JEPS19987  Dulichium arundinaceum Joseph P. Tracy 1938-9-25 16173 Humboldt Bald Mountain at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  HSC7316  Eleocharis macrostachya S. J. Roberts 1965-5-8 51 Humboldt 1 mi. S of junction of Old Arcata Rd. and Bayside Cutoff Comment
  CAS-BOT-BC113113  Eleocharis obtusa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  RSA53823  Eleocharis obtusa var. engelmannii Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  UCR21761  Eleocharis parvula Denis Kearns 1979-8-24 210 Humboldt North Coast, near the Arcata Boat Launching Facility at the south end of 'I' Street 1 Comment
  UCR63392  Eleocharis pauciflora H. E. Parks 1934-1 5275 Humboldt North Coast, Spruce Cove, Trinidad Comment
  RSA10137  Elymus glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie, on Bald Mountain 1067 Comment
  SEINET4683795  Elymus mollis D. A. Haskell 1966-4-23 26 Humboldt Coastal strand sand dunes near the town of Sa-; 0 Comment
  HSC58419  Elymus multisetus Griswold, Butler 1979-7-12 7265 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC526785  Elymus multisetus Joseph P. Tracy 1933-7-25 12893 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC102192  Elymus repens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1106 Humboldt Andy's Camp 1564 Comment
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Jul 9 2015
  HSC102919  Epilobium M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1077 Humboldt Patterson Meadows 1555 Comment
  SD38380  Epilobium angustifolium Edith A. Purer 1932-7-27 4148 Humboldt Near Samoa Comment
  JEPS39208  Epilobium brachycarpum Joseph P. Tracy 1917-9-3 4854 Humboldt lower w slopes of mt. Northern Coast Ranges, Grouse Mt., Janes Ranch 914 Comment
  RSA40412  Epilobium brachycarpum P. A. Munz 1948-8-13 12348 Humboldt Highway 229, 21 miles E of Blue Lake. 762 Comment
  UC198621  Epilobium brachycarpum Joseph P. Tracy 1917-9-3 4855 Humboldt Janes Ranch Northern Coast Ranges, Grouse Mt. (lower w slopes) 914 Comment
  HSC34784  Epilobium canum subsp. canum R. E. Cooksey Sep 1972 58 Humboldt On Ave. of Giants 30 Comment
  HSC54566  Epilobium ciliatum subsp. ciliatum Overton, Butler 1979-7-24 9586 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC76188  Epilobium ciliatum subsp. ciliatum Overton, Butler 1979-7-24 9781 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  POM225269  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-10 14340 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. Comment
  UC1197012  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1931-10-11 9714 Humboldt at Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC103287  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-13 Humboldt Six Rivers National Forest, Denny Quad, Lower Trinity District, Groves Prairie. 1261 Comment
  HSC49645  Epilobium ciliatum subsp. glandulosum J. P. Smith, Steve Selva 1970-6-30 4138 Humboldt Comment
  RSA181880  Epilobium foliosum Joseph P. Tracy 1928-5-6 8430 Humboldt Northern Coast Ranges: Trinity River Valley, at Willow Creek 152 Comment
  JEPS31498  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1936-8-7 15102 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  UC1197005  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1920-8-15 5381 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC1222846  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1950-8-7 19272 Humboldt 2 mi e Box Camp (on trail between Box Camp and Croghan Hole); Trinity Summit Comment
  UC1197009  Epilobium hallianum Joseph P. Tracy 1936-6-28 15028 Humboldt Lake Prairie Bald Mountain 1219 Comment
  HSC98840  Epilobium minutum Cara Witte 2008-7-11 877 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC594236  Epilobium minutum S. K. Harris and J. P. Tracy 1936-6-10 3263 Humboldt hills w South Fork of the Trinity River (near river mouth) 640 Comment
  HSC75459  Epilobium oregonense J. O. Sawyer 1980-7-18 3586 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1196952  Epilobium septentrionale Arthur E. Connick 1932-8-12 Humboldt Garberville 121 Comment
  UCD106767  Epilobium septentrionale R. N. Bowman 1971-4-12 51 Humboldt Ca. 1.7 miles SE of Myers Flat off of Highway 101. Ca. 4 feet above S fork of Eel River on E bank. 1066 Comment
  HSC46090  Equisetum arvense J. P. Smith 1971-10-9 5014 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC93222  Equisetum telmateia subsp. braunii Gordon Leppig 1998-3-9 714 Humboldt Arcata, West End Rd., 0.3 mi. W of Ericson Way 30 Comment
  UC526900  Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC34983  Erechtites glomeratus Thomas W. Nelson 1974-9-13 1710 Humboldt King Salmon area Comment
  RSA95041  Erechtites glomeratus F. W. Peirson 1926-7-12 7037 Humboldt Right bank of Redwood Creek, Orick Comment
  CAS-BOT-BC131506  Ericameria arborescens H. E. McMinn 1922-8-3 476 Humboldt Mt. slope above S.F., Eel River Comment
  RSA259579  Erigeron foliosus var. confinis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2011 Humboldt French Camp, Bald Hills Comment
  HSC46953  Erigeron glaucus J. P. Smith, Thomas W. Nelson 1977-6-30 9208 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  HSC95767  Erigeron maniopotamicus Thomas W. Nelson, Sydney Carothers 2004-6-18 9249 Humboldt Along Swayback Ridge Rd., which branches off Forest Service Rd. 1N08, 1/4 mi. past gate 1357 Comment
  SBBG63320  Erigeron philadelphicus J. R. and R. C. Robbins 1932-7-24 Humboldt S of Scotia Comment
  JEPS41380  Erigeron philadelphicus var. philadelphicus Lincoln Constance 1934-5-26 685 Humboldt s end Dyerville Bridge; South Fork Eel River 45 Comment
  JEPS22258  Erigeron robustior Milo S. Baker 1923-7-29 134 Humboldt Yager Creek; mt. on s side of camp, region of type locality 792 Comment
  RSA0065545  Eriogonum baileyi Marion P. Harthill 1971-9-8 571 Humboldt Walker River, Toiyabe National Forest, Lower Campgrounds. Comment
  CAS-BOT-BC248809  Eriogonum compositum var. compositum Joseph P. Tracy 1932-7-12 10460 Humboldt Trinity Summit, head of Brett Hole 1828 Comment
  LA206934  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  RSA667221  Eriogonum latifolium George K. Helmkamp, E. A. Helmkamp 2001-7-8 7016 Humboldt North coast: Samoa Peninsula, 2.6 miles S of CA-255 bridge across Humboldt Bay. 15 Comment
  SBBG1531  Eriogonum latifolium H. and M. Dearing 1939-5-25 3438 c Humboldt near Samoa Comment
  RSA273152  Eriogonum latifolium Glenn A. Gorelick 1967-6-11 s.n. Humboldt Samoa sand dunes, near Arcata Comment
  HSC17389  Eriogonum luteolum var. luteolum D. E. Anderson 1961-9-30 1857 Humboldt Along dry roadside Comment
  HSC54580  Eriogonum nudum Overton, Butler 1979-7-24 9622 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  RSA21586  Eriogonum nudum var. nudum Carl B. Wolf 1937-8-13 9231 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  RSA33411  Eriogonum nudum var. oblongifolium Doris K. Kildale 1927-7-1 3621 Humboldt Alton Hill Comment
  SD22520  Eriogonum nudum var. oblongifolium Susan G. Stokes 1932-7-13 Humboldt From Garberville to Eureka Comment
  CAS-BOT-BC269866  Eriogonum nudum var. pubiflorum Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  UC672894  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-23 14133 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC57128  Eriophyllum lanatum var. achilleoides Overton, Butler 1979-7-25 9895 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC34183  Eriophyllum lanatum var. achilleoides Harley P. Chandler May 1901 1234 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  HSC70700  Eriophyllum lanatum var. arachnoideum Gail Newton 1980-7-15 1552 Humboldt Near Sims Mtn. 1311 Comment
  UC129581  Eriophyllum lanatum var. arachnoideum Harley P. Chandler May 1901 1093 Humboldt Scotia North Coast Ranges, Humboldt Bay, Scotia 60 Comment
  UC165787  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1908-6 2695 Humboldt opposite Buck Mountain (gravel bar of river); Van Duzen River 762 Comment
  HSC98956  Eriophyllum lanatum var. integrifolium Cara Witte 2008-7-28 948 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  UC183565  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1912-7 3777 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC41572  Erysimum capitatum Doris Kildale Gillespie 1931-6-7 10624 Humboldt South Fork Mount Blake Lookout. 1726 Comment
  SEINET8371203  Erythranthe dentata L. F. Henderson 1933-5-27 15635 Humboldt Arcata-Redding road. Comment
  SEINET13723796 Image available Erythranthe moschata Joseph P. Tracy 1908-1 2697 Humboldt Valley of Van Duzen River; opposite Buck Mountain 762 Comment
  UC1197648  Erythronium californicum Joseph P. Tracy 1927-6-12 8127 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC15491  Erythronium californicum Paul Shields May 1955 Humboldt 12 mi. W of Willow Creek Comment
  SEINET10528799  Erythronium californicum Frank W. Gould 1939-5-30 Gould 826 A Humboldt Near top of Horse Mountain, in Pinus monticola-P. jeffreyi-Libo-cedrus forest; 3500 feet. 1065 Comment
  HSC38788  Erythronium grandiflorum subsp. grandiflorum J. P. Smith 1976-5-30 8825 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  UC35061  Eschscholzia californica Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  CAS-BOT-BC403038  Eschscholzia californica R. James; M. Goering; S. Matthews 1985-4-20 045 Humboldt Burnt Ranch Campground, Shasta-Trinity National Forest Comment
  UC184939  Eschscholzia californica Joseph P. Tracy 1913-6-15 4138 Humboldt Dinsmore's Ranch Northern Coast Ranges, Valley of Van Duzen River (opposite Buck Mountain) 762 Comment
  UC204827  Euchiton gymnocephalus Joseph P. Tracy 1918-6-23 4958 Humboldt near Carroll place (Boynton Prairie road, around Humboldt Bay); Northern Coast Ranges, Humboldt Bay, Boynton Prairie 304 Comment
  UC562615  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  POM208999  Euonymus occidentalis Lincoln Constance 1934-6-11 855 Humboldt Cabin Creek bridge on Dyerville-Bull Creek Flat road. Humboldt Redwood Park. 52 Comment
  CDA20172  Euphorbia oblongata P. Haggard 2003-6-24 PDR 069699 Humboldt Northwestern California; Horse Mtn. 0 Comment
  NY263154  Euphorbia occidentalis V. K. Chesnut 1888-7-23 Humboldt Hy-Am-Pum (spelling?) Comment
  UC902141  Euphorbia spathulata Joseph P. Tracy 1948-6-20 18068 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CDA28953  Euphorbia virgata T. Chapple 2009-6-1 s.n. Humboldt Vicinity of Orleans, found on Klamath River access road. 0 Comment
  RSA91151  Euthamia occidentalis F. W. Peirson 1926-7-13 7062 Humboldt Near Blue Lake, Mad River Comment
  HSC12592  Fallopia japonica C. Kline 1970-11-15 70 Humboldt Downtown Arcata, empty lot Comment
  CAS-BOT-BC413855  Fallopia sachalinensis T. C. Fuller 1960-8-25 4973 Humboldt W/Hwy 101, 1/4 mile N/Humboldt Hill Rd., Eureka Comment
  HSC9818  Festuca arundinacea D. J. McVean 1965-5-18 76 Humboldt Along Old Arcata Rd. just S of intersection with Indianola Rd. Comment
  HSC74274  Festuca californica M. A. Baker 1980-5-23 1382 Humboldt Near Buck Mtn. 1524 Comment
  UC526870  Festuca californica Joseph P. Tracy Jul 16 1930-Jul 19 1930 9044 Humboldt near Blake lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC98939  Festuca californica var. californica Cara Witte 2008-7-14 901 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC177163  Festuca idahoensis Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC58759  Festuca occidentalis Overton, Butler 1979-7-26 9993 Humboldt Near Willow Creek 1341 Comment
  HSC9954  Festuca occidentalis R. H. Berg 1963-5-1 62 Humboldt HSU Campus, Arcata, CA Comment
  UCD66132  Festuca occidentalis A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3466 Humboldt 2 miles west of Bridgeville, banks above Van Dusen River. Comment
  CAS-BOT-BC278962  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N.E. of Capetown 152 Comment
  CAS-BOT-BC278969  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  UCD66357  Festuca rubra R. Tofsrud 1948-9-1 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UC1103706  Festuca subulata Joseph P. Tracy 1908-6 2741 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1197363  Foeniculum vulgare Joseph P. Tracy 1930-10-12 9216 Humboldt Eel R. Alton to Fortuna; Eel R. 15 Comment
  HSC27020  Foeniculum vulgare Brad Klipfel 1973-8-20 282 Humboldt At Hwy 101 and Hookton Road, N of Eureka Comment
  HSC39972  Fragaria X ananassa Linda M. Barker 1976-3-22 1335 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC453519  Fragaria chiloensis David D. Keck; J. Clausen 1935-6-16 3390 Humboldt Mouth of Little River Comment
  CHSC32839  Fragaria chiloensis Lora Anderson 1981-4-26 7 Humboldt Ca. 5 m n on Clam Beach Rd. 0.5 km e of Hwy. 101. 9.5 mi n of Arcata, along roadsides. 0 Comment
  HSC18622  Fragaria chiloensis D. B. Bader 1963-2-17 14 Humboldt Second of the Clam Beach Lagoons W of Hwy. 101 Comment
  UC1198726  Fragaria chiloensis Joseph P. Tracy 1901-5-12 1083 Humboldt Eureka, immediate vicinity of 0 Comment
  HSC72767  Fragaria chiloensis Therese Glowacki 1981-4-12 20 Humboldt .6 km. W of Centerville Rd., 1.6 km. S of Centerville, 9.6 km. SW of Ferndale 4 Comment
  HSC18608  Fragaria vesca A. E. Inman 1962-5-25 Humboldt E bank of Mad River, W of Camp Bauer Comment
  HSC45262  Fragaria virginiana M. Alcasas 1978-6-3 120 Humboldt Titlow Hill Rd. 0.8 mi. from Hwy. 299 1113 Comment
  CAS-BOT-BC59954  Frangula purshiana Carl B. Wolf 1934-6-30 5818 Humboldt Mendocino. 22 Comment
  CAS-BOT-BC59958  Frangula purshiana H. E. Parks; S. T. Parks 1937-6-1 24018 Humboldt Spruce Cove, Trinidad. Comment
  RSA46910  Fraxinus latifolia Doris K. Kildale 1926-7-5 2325 Humboldt Smith River near Adam s Station Comment
Read comments
Jan 24 2013
  SEINET6694697 Image available Fraxinus oregona Joseph P. Tracy 1941-1 16814 Humboldt Lack pond; in Trinity River Valley, opposite mouth of Willow Creek Comment
  HSC33079  Fritillaria affinis Thomas W. Nelson, J. D. Ackerman 1974-5-14 1268 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  CHSC19947  Galium aparine M. S. Taylor 1975-3-25 427 Humboldt Between 11th and 12th Sts, at end of Citrus Ave, Chico. Comment
  HSC57208  Galium aparine Griswold, Butler 1979-7-12 7186 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC89467  Galium aparine P. A. Daly 1986-3-12 101 Humboldt Trinidad Head, along trail 61 Comment
  UC1196103  Galium aparine Joseph P. Tracy Jul 16 1930-Jul 19 1930 9048 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC1222495  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley Comment
  UC1196097  Galium bifolium Joseph P. Tracy 1930-7-16 8906 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC35335  Galium bolanderi Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  HSC41597  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1977-9-3 3719 Humboldt Along ridge between Bear Creek and Blanket Creek 1494 Comment
  HSC98081  Galium bolanderi Cara Witte 2007-7-3 415 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  JEPS25701  Galium bolanderi P. C. Hutchison 1961-5-22 2031 Humboldt high bluffs along road ca. 5.4 mi n Orleans (on US hwy 299, e side of river); Klamath River Comment
  JEPS52693  Galium bolanderi Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3853 Humboldt 1/2 mi e Dinsmores (on Hwy 36, w-facing slope) 731 Comment
  JEPS6697  Galium muricatum W. L. Jepson 1932-7-30 16454 Humboldt Bull Creek Comment
  JEPS52824  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3851 Humboldt 11.6 mi w Bridgeville (on Hwy 36 to Dinsmores, floor of valley); Larrabee Valley 716 Comment
  JEPS6496  Galium parisiense W. L. Jepson 1902-6 1981 Humboldt Hupa Comment
  UC175682  Galium porrigens Joseph P. Tracy 1912-7-26 3863 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC57217  Galium triflorum Griswold, Butler 1979-7-12 7289 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  JEPS6537  Galium triflorum W. L. Jepson 1902-6 1911 Humboldt Pepperwood Comment
  CAS-BOT-BC303398  Gamochaeta ustulata L. R. Abrams 1916-7-18 6125 Humboldt Arcata to Trinidad Comment
  HSC72815  Garrya buxifolia Gail Newton 1980-7-24 1774 Humboldt Near Somes Mtn. 1615 Comment
  HSC22830  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt On W.M. Lanphere's ranch 9 Comment
  HSC89538  Garrya elliptica M. Roantree 1985-4-25 1 Humboldt E side of Trinidad Head. Comment
  SEINET10453481  Garrya elliptica Mary Susan Taylor 1982-10-24 Taylor 5181 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  CAS-BOT-BC182146  Garrya fremontii Doris K. Kildale 1929-4-25 7434 Humboldt McDowell Butte - Kneeland Prairie 914 Comment
  HSC40855  Garrya fremontii Thomas W. Nelson 1976-7-9 2992 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  HSC98071  Garrya fremontii Cara Witte 2007-7-12 530 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  UC1051597  Garrya fremontii Joseph P. Tracy 1948-9-12 18214 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC668299  Garrya fremontii Joseph P. Tracy 1935-7-29 14342 Humboldt Trinity Summit; near ranger station 1828 Comment
  UCD121163  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  RSA120510  Gastridium phleoides S. S. Tillett 1956-7-6 609 Humboldt South slope along Bar Shanty Road, 5 miles from Orleans. 488 Comment
  UCD66582  Gastridium phleoides P. B. Kennedy 1923-8-5 26 Humboldt West fork of Eel River between Phillipsville and Garberville. Comment
  HSC7811  Gaultheria shallon J. Pursell 1964-10-18 10182 Humboldt Hwy. 299, 15 mi. N of Blue Lake Comment
  LA41415  Gaultheria shallon C. B. Wolf; 1930-10-30 1787 Humboldt old Coast Road, 4 mi. S of Thorns 304 Comment
  RSA1367  Gaultheria shallon E. R. Johnson 1929-08 612 Humboldt Eel River. 91 Comment
  SEINET3107001  Gaultheria shallon Steve Selva, Roger Jensen 1974-8-21 26 Humboldt Redwood grove adjacent to highway 101 rest stop. Approx 3 miles N of Trinidad. Comment
  UC32704  Gaultheria shallon Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  HSC102923  Gayophytum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1116 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  HSC55051  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11582 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa Comment
  UC505121  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10401 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC14650  Genista monspessulana Francis Winter 1960-3-26 Humboldt Samoa Pennisula, 3 mi. N of U.S. Coast Guard Station. Comment
  RSA46825  Gentiana plurisetosa Doris K. Kildale 1925-8-17 s.n. Humboldt Trinity Summit 1829 Comment
  HSC96490  Gentiana sceptrum Gordon Leppig 1997-8-3 635 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  UC162717  Gentiana sceptrum Joseph P. Tracy 1911-8-27 3535 Humboldt Eureka Northern Coast Region 0 Comment
  UC1198642  Gentiana sceptrum Joseph P. Tracy 1920-8-29 5393 Humboldt Dows Prairie Northern Coast Ranges 45 Comment
  HSC100487  Geranium incisum Carl C. Marshall Jun 1885 106 Humboldt Hills. Comment
  SEINET14153534 Image available Geranium molle Richard R. Halse 2015-1 9382 Humboldt Eureka; weedy area by a Texaco Station near 3543 Broadway St. and its intersection with McCullens Ave. 6 Comment
  SEINET8941907  Geranium molle R. R. Halse 2015-3-26 9382 Humboldt Eureka, weedy area by a Texaco Station near 3543 Broadway St. and its intersection with McCullens Ave. 6 Comment
  HSC59668  Geranium molle George Kirn 1977-10-15 Humboldt Eureka, Q and 3rd St. 12 Comment
  SEINET3356154 Image available Gilia capitata H. E. Parks, J. P. Tracy 1930-5-25 0793 Humboldt Near Bridgeville Comment
  HSC45058  Gilia capitata subsp. pacifica R. Sutherland 1978-4-24 14 .24478 Humboldt 12 Comment
  POM193010  Gilia capitata subsp. pacifica H. E. Parks, Joseph P. Tracy 1930-5-25 0793 Humboldt Near Bridgeville. Comment
  RSA46733  Gilia capitata subsp. pacifica Doris K. Kildale 1927-7-1 s.n. Humboldt Alton Hill Comment
  UC907968  Gilia capitata subsp. pacifica Joseph P. Tracy 1936-6-9 14879 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  HSC70953  Githopsis specularioides R. York 1980-5-17 522 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC218430  Glehnia littoralis subsp. leiocarpa W. R. Dudley 1899-6-1 s.n. Humboldt Penninsula of Humboldt Bay Comment
  HSC58634  Glyceria elata Gilbert Muth 1979-7-31 11530 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  UC1108977  Glyceria elata Francia Chisaki and Helen K. Sharsmith 1959-8-22 4756 Humboldt Happy Camp Inner North Coast Ranges (just over Trinity County line) 914 Comment
  CDA5423  Gnaphalium japonicum T. C. Fuller 1962-8-6 9358 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  HSC58110  Gnaphalium palustre G. L. Clifton, Griswold 1979-8-1 12058 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1199353  Gnaphalium palustre Joseph P. Tracy 1918-7-2 4985 Humboldt upper Mattole Valley; Northern Coast Ranges, Mattole Valley 152 Comment
  HSC54588  Goodyera oblongifolia Overton, Butler 1979-7-24 9652 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  RSA249356  Goodyera oblongifolia J. D. Ackerman 1973-8-18 120 Humboldt 2 miles north of Manila Comment
  JEPS4221  Gratiola ebracteata J. P. Tracy 1908-6-7 2618 Humboldt Butler Valley , Butler Valley (Mad River) 152 Comment
  HSC12338  Grindelia hirsutula Steve Dorei 1970-10-26 116 Humboldt Arcata, on South G St. near curve Comment
  HSC35626  Grindelia hirsutula Thomas W. Nelson, James Nelson 1975-8-5 2139 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  HSC91913  Grindelia hirsutula E. Mackey 1986-12-18 Humboldt Patricks Point State Park; parking lot at Palmer's Point Comment
  JEPS25801  Grindelia hirsutula L. R. Heckard 1960-8-31 1220 Humboldt s end Dry Lagoon Beach State Park Comment
  BLMAR676  Grindelia stricta Jennifer Wheeler 2013-6-7 676 Humboldt Humboldt County, Seven mile beach, along Mattole road 6 Comment
  CDA6171  Grindelia stricta var. stricta T. C. Fuller 1961-9-27 7043 Humboldt 1 mile north of Indianola Road, Highway 101, 5 miles north of Eureka. 0 Comment
  POM187851  Grindelia stricta var. stricta Marcus E. Jones 1931-7-16 29143 Humboldt Arcata. Comment
  POM264515  Grindelia stricta var. stricta H. E. Parks 1941-08 24190 Humboldt Big Lagoon. Comment
  UC201390  Guillenia lasiophylla Joseph P. Tracy 1918-5-1 4907 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA259547  Hackelia bella D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-13 s.n. Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  UC1239636  Hackelia californica Joseph P. Tracy 1919-9-18 5247 1/2 Humboldt Corral Prairie Trinity Summit; Northern Coast Ranges 1524 Comment
  HSC102027  Hackelia micrantha M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 928 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  CAS-BOT-BC302442  Hazardia whitneyi var. discoidea Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  SEINET2166159  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt Blue SLide, on Van Duzen River. Comment
  CAS-BOT-BC306611  Helenium bigelovii Paul F. Covel 1937-7-14 1047 Humboldt Loleta Comment
  CAS-BOT-BC306615  Helenium bigelovii Joseph P. Tracy 1937-8-12 15657 Humboldt Snow Camp 1402 Comment
  SEINET11848908  Helenium bigelovii J. P. Tracy 1949-1 18462 Humboldt Snow Camp 1402 Comment
  UC34534  Helenium bigelovii Chestnut and Drew 1888-8-7 Humboldt Lake Prairie Comment
  UC524125  Helenium bigelovii Ira L. Wiggins 1932-7-19 5891 Humboldt 1.5 mi n Trinidad Head Comment
  UCD132965  Helminthotheca echioides Collector unknown Date Unknown s.n. Humboldt exact location unknown. Comment
  HSC63140  Hemitomes congestum M. A. Baker 1979-6-29 952 Humboldt 900 Comment
  CAS-BOT-BC306037  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 304 Comment
  UC495626  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-9-1 9174 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River 121 Comment
  CAS-BOT-BC309982  Hemizonia congesta subsp. tracyi A. G. Vestal 1937-6-20 s.n. Humboldt 4 miles north of Petrolia Comment
  UC275452  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-18 7215 Humboldt Cape Ridge Northern Coast Ranges, Cape Mendocino 304 Comment
  UC1212225  Hesperolinon adenophyllum Joseph P. Tracy 1946-8-25 17646 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  HSC74733  Heterocodon rariflorum Gail Newton 1981-7-24 2318 Humboldt Near Chaparral Mtn. 1433 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
  UC1222321  Heteromeles arbutifolia Joseph P. Tracy 1950-9-22 19380 Humboldt about 3 mi sw Orleans (above Bluff Creek) Comment
  RSA0072456  Heteromeles arbutifolia Percy C. Everett, E. K. Balls 1959-10-24 23951 Humboldt 6 mi SW from Siskiyou-Humbolt county line, Somesbar to Orleans. 152 Comment
  HSC56071  Heuchera micrantha G. L. Clifton, Griswold 1979-7-31 11740 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC667100  Heuchera micrantha Joseph P. Tracy 1933-5-20 12216 Humboldt 2 mi s Ferndale (Wild Cat Ridge); Wild Cat Ridge 304 Comment
  UC154083  Heuchera micrantha var. diversifolia Joseph P. Tracy 1908-6 2865 Humboldt Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges 762 Comment
  HSC56185  Heuchera rubescens Gilbert Muth 1979-8-1 12117 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC57620  Hieracium albiflorum G. L. Clifton, Griswold 1979-7-25 10746 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC58353  Hieracium albiflorum Overton, Butler 1979-8-2 12691 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1223083  Hieracium bolanderi Joseph P. Tracy 1947-7-9 17849 Humboldt Horse Mountain 1432 Comment
  UC1199462  Hieracium nudicaule Joseph P. Tracy 1911-7-6 3363 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC10142  Holcus lanatus R. I. Bonn 1965-5-9 50 Humboldt 4 miles W of Arcata on Lanphere Rd. Comment
  HSC33769  Holcus lanatus Lon Hall 1975-5-24 378 Humboldt Samoa Dunes, off Samoa Blvd., across from the boat landing Comment
  HSC45220  Holcus lanatus M. Alcasas 1978-5-27 111 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  POM352400  Holcus lanatus Thekla Mohr 1918-07 3344 Humboldt Eel River. Comment
  SEINET197047 Image available Holcus lanatus H. E. Parks, ST Parks 24260 Humboldt Spruce Cove Trinidad. 61 Comment
  UC1056070  Holcus lanatus J. I. Mallory 1955-7-22 117 Humboldt 1 mi n Luke Prairie (Quad 29-B-2); Peavine Ridge 701 Comment
  UC34072  Holcus lanatus J. P. Tracy 1901-7-24 1218 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC922018  Holcus mollis Joseph P. Tracy 1948-7-31 18079 Humboldt Eureka 30 Comment
  BLMAR686  Holodiscus discolor Jennifer Wheeler 2013-6-25 686 Humboldt King range, Strawberry Rock 62 Comment
  HSC40499  Holodiscus discolor Thomas W. Nelson, James Nelson 1976-7-26 3043 Humboldt E side of middle peak of Mount Lassic group, Signal Peak 1738 Comment
  HSC57162  Holodiscus discolor Overton, Butler 1979-7-26 9962 Humboldt Near Willow Creek, close to the town of Willow Creek 1326 Comment
  HSC58057  Holodiscus discolor G. L. Clifton, Griswold 1979-8-1 11927 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC1043493  Holodiscus discolor E. K. Balls 1954-5-25 19387 Humboldt 6.3 mi s of Ferndale (North Coast Range, Wild Cat Ridge); North Coast Range, Wild Cat Ridge Comment
  HSC89903  Hordeum brachyantherum Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC1103747  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1927-7-16 8251 Humboldt mouth of Elk River 3 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
  UC1103483  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1936-6-9 14913 Humboldt on the road from Bull Creek to Upper Mattole; Windy Nip Garp 609 Comment
  UCD85896  Hordeum marinum subsp. gussoneanum A. H. Murphy 1951-6-1 49 Humboldt O. O. Davis Ranch. South slope of South Fork Mtn., 3 miles E of Low Gap. Comment
  CAS-BOT-BC289564  Hordeum marinum subsp. gussoneanum Henry M. Pollard 1946-8-27 s.n. Humboldt South sid eof Klamath River near Bryce Creek, Orleans region Comment
  CAS-BOT-BC536628  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt Foot of low hills south of Fields Landing 6 Comment
  JEPS44551  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  HSC98310  Hosackia yollabolliensis W. K. Parks Jul 1933 2057 Humboldt On Buck Mtn. Comment
  POM319264  Hypericum androsaemum Patricia Wilder 1968-8-21 4393 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  UC1198419  Hypericum formosum var. scouleri J. P. Tracy 1898-7-5 249 Humboldt near Ryan's Slough School House on Worthington Prairie (immediate vicinity of Eureka) 0 Comment
  HSC53955  Hypericum perforatum Griswold, Butler 1979-7-11 7005 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC1198402  Hypericum perforatum Joseph P. Tracy 1933-7-3 12640 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC179926  Hypericum perforatum Joseph P. Tracy 1914-9-7 4618 Humboldt On Bald Mt. near Bald Mt. House; Northern Coast Ranges, Bald Mt. 914 Comment
  HSC36264  Hypericum perforatum John Rehling 1974-8-20 26 Humboldt Road leading to Alder Point Conservation camp 2 mi. from Hwy. 101 Comment
  CAS-BOT-BC311431  Hypochaeris radicata Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  CAS-BOT-BC311435  Hypochaeris radicata M. S. Jussel 1931-5-2 81 Humboldt 20 miles north of Garberville Comment
  CAS-BOT-BC206845  Iliamna latibracteata C. B. Wolf 1931-8-28 2367 Humboldt Redwood Highway, 3 miles north of Orick, Davison's Ranch on Prairie Creek 60 Comment
  UCD126379  Iliamna latibracteata D. C. Hagar 1957-6-20 L 10 Humboldt Cedar Creek Divide, 5.5 miles east of Willow Creek. 1066 Comment
  SEINET10830077 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 Tracy 16104 Humboldt Willow Creek anyon, along Trinity Highway. 762 Comment
  HSC48816  Ipomopsis aggregata Brad Klipfel 1973-7-31 230 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM87943  Iris douglasiana Le Roy Abrams, Rimo C. Bacigalupi 8274 Humboldt Big Lagoon, south of Orick. 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
  UC14927  Iris macrosiphon P. E. Goddard 1901-7-8 30 Humboldt Hupa Comment
  SD42572  Iris macrosiphon Carl B. Wolf 1937-6-19 8913 Humboldt North Coast Range, 7 & 2/10 miles above Bridgeville, on grade to Dinsmores. Moist open forest ridge. 456 Comment
  UC4291  Iris macrosiphon J. Burtt Davy 1899-6-21 5745 Humboldt Hoopa Valley; North Coast Ranges Comment
  UC14929  Iris tenuissima Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  RSA246770  Juncus bolanderi Robert F. Thorne, Percy C. Everett 1965-8-7 35176 Humboldt Big Lagoon. 2 Comment
  UC1103034  Juncus bolanderi Joseph P. Tracy 1900-7-12 897 Humboldt Eureka Northern Coast Region 0 Comment
  UC14895  Juncus bolanderi J. P. Tracy 1900-9-9 940 Humboldt immediate vicinity Eureka 0 Comment
  RSA18013  Juncus bufonius Carl B. Wolf 1927-8-22 780 Humboldt Big Lagoon Comment
  UC1152112  Juncus bufonius Joseph P. Tracy 1927-6-19 8197 Humboldt Big Lagoon Comment
  UC184195  Juncus bufonius Joseph P. Tracy 1914-7-5 4573 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC67455  Juncus bufonius J. P. Smith 1971-10-9 5009 Humboldt Mad River above the Fish Hatchery. Comment
  HSC97983  Juncus covillei Cara Witte 2007-7-11 496 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  UC183782  Juncus covillei var. obtusatus Joseph P. Tracy 1908-7-14 2871 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC99545  Juncus exiguus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 210 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1152105  Juncus exiguus Joseph P. Tracy 1930-7-17 8982 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC249812  Juncus falcatus var. falcatus Joseph P. Tracy 1924-7-13 6723 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC421740  Juncus hesperius Henry Melde 1902-2-8 Humboldt Eureka Comment
  RSA42045  Juncus hesperius Ella Dales Cantelow 1936-8-28 1634 Humboldt 4 1/2 miles SW of Dinsmore s Comment
  UC212985  Juncus orthophyllus Joseph P. Tracy 1919-9-22 5277 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  CHSC102932  Juncus patens Peter F. Zika 2007-7-30 23329 Humboldt North Coast, NCo. Above E side of Route 101, at high point between Stone and Big Lagoons. 80 Comment
  UC302167  Juncus phaeocephalus Joseph P. Tracy 1925-10-18 7293 Humboldt Big Lagoon Northern Coast Region 6 Comment
  SEINET11788735  Juncus phaeocephalus J. P. Tracy 1934-1 13391 Humboldt Dow's Prairie 61 Comment
  UC1152148  Juncus phaeocephalus var. paniculatus Joseph P. Tracy 1938-7-24 16086 Humboldt corner of Pacific and A Streets Eureka Comment
  SD192840  Juncus planifolius Peter F. Zika 2008-10-19 24229 Humboldt East side of Route 101, near Exit 728 for Trinidad Beach. 110 Comment
  NY21391  Juniperus communis F. W. Hunnewell 1925-7-22 9707 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
  UC562742  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1935-7-26 14261 Humboldt Trinity Summit, at Water Dog Lakes Water Dog Lakes; Trinity Summit, Water Dog Lakes 1828 Comment
  LA209293  Keckiella breviflora Marcus E. Jones; 1931-7-16 28828 Humboldt junction, E of Arcata Comment
  CAS-BOT-BC235878  Keckiella corymbosa P. A. Munz 1936-8-9 14328 Humboldt Cliff, south fork of Eel River, 5 mi. north of Humboldt-Mendocino County-line Comment
  CAS-BOT-BC235891  Keckiella corymbosa C. Epling; Wm. Robison 1935-7-24 s.n. Humboldt Dyerville Comment
  HSC74728  Keckiella corymbosa Gail Newton 1981-7-22 2263 Humboldt Near Bug Creek 1375 Comment
  JEPS11138  Keckiella corymbosa W. L. Jepson 1932-7-25 16396 Humboldt Old Camp Grant; Eel River 91 Comment
  RSA46967  Keckiella corymbosa Carl B. Wolf 1927-8-30 1237 Humboldt 2 miles S of Petrolia on the Matole River near point where the road crosses the river. Comment
Read comments
Mar 27 2012
  RSA121249  Koeleria macrantha H. S. Yates 1936-6-17 5699 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC1196122  Kopsiopsis strobilacea Road Maintenace Crew May 1943 Humboldt Willow Creek Canyon on Trinity Highway. 762 Comment
  UC403009  Kopsiopsis strobilacea Joseph P. Tracy 1916-6-25 4739 Humboldt Ridge between Little River and Redwood Creek. 457 Comment
  JEPS19954  Lagophylla ramosissima Joseph P. Tracy 1934-7-9 13354 Humboldt Dobbyn Creek 152 Comment
  HSC14213  Lamium purpureum R. C. Drewien 1963-3-24 7 Humboldt McKinleyville, Turner Dr. and Mill Creek crossing Comment
  HSC77913  Landoltia punctata Daniel V. Richards 1980-5-25 101 Humboldt N Clam Beach Pond, E side of Hwy. 101, near Cranell exit. Comment
  UC1223223  Lapsana communis Joseph P. Tracy 1950-8-7 19275 Humboldt 1 mi w of lower end Croghan Hole; Trinity Summit Comment
  RSA46394  Lapsana communis Charles L. Pollard 1946-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  UC552256  Lasthenia glaberrima Harold E. Parks and Joseph P. Tracy 1935-6-16 11274 Humboldt lower nw slopes Buck Mt. 792 Comment
  UC198586  Lasthenia maritima Joseph P. Tracy 1917-5-30 4810 Humboldt at mouth of Little River (stranded on ocean beach, source unknown); Northern Coast Ranges Comment
  UC1222396  Lathyrus glandulosus Joseph P. Tracy 1950-6-29 18934 Humboldt 3 mi e Kneeland (on Butter Valley Road) Comment
  UC1222400  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1946-5-4 17523 Humboldt w side near sw corner Hoopa Valley Comment
  HSC71617  Lathyrus latifolius J. P. Smith 1973-5-26 6800 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UCD106376  Lathyrus littoralis Linda M. Barker 1976-5-13 1489 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  JEPS64859  Lathyrus nevadensis var. nevadensis Harley P. Chandler Jun 1901 1290 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  UC709416  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1935-7-25 14247 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  SEINET956147  Lathyrus polyphyllus Joseph P. Tracy 1948-1 18118 Humboldt In fir forest, 1.5 miles north of Forest Service Public Camp on Trinity Summit Road. 1280 Comment
  UC931687  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19090 Humboldt ca 10 mi w Willow Creek (near Highway 299) Comment
  HSC76514  Lathyrus sulphureus Denis Kearns 1981-7-23 416 Humboldt Near Whiteys Peak. 1524 Comment
  BLMAR644  Lathyrus torreyi Jennifer Wheeler 2011-7-7 644 Humboldt Lacks Creek, Pine Ridge Road, spur at Stormy Saddle 1097 Comment
  UC162589  Lathyrus vestitus Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5358 Humboldt Bell Springs to Harris; North Coast Ranges Comment
  JEPS55357  Lathyrus vestitus var. ochropetalus Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  HSC103337  Lathyrus vestitus var. ochropetalus Thomas W. Nelson, Jane Nelson 1983-6-12 7413 Humboldt Along Kneeland Rd., ~ .5 mi. SE of junction with Maple Creek Rd. 671 Comment
  JEPS55330  Lathyrus vestitus var. ochropetalus W. L. Jepson 1902-6-24 1930 Humboldt Korbel to Angel's Ranch (n Humboldt County) Comment
  CAS-BOT-BC325994  Layia carnosa David D. Keck; J. Clausen 1935-6-16 3381 Humboldt Mouth of Little River. Comment
  CAS-BOT-BC325997  Layia carnosa Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  UC1223219  Layia gaillardioides Joseph P. Tracy 1950-6-8 187860 Humboldt Petrolia Comment
  JEPS40021  Layia gaillardioides W. L. Jepson 1902-8-3 2140 Humboldt Bear River Range to Petrolia Comment
  POM318849  Ledum glandulosum subsp. columbianum Patricia Wilder 1968-8-21 4385 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC38941  Leontodon saxatilis subsp. saxatilis Linda M. Barker 1976-6-1 1562 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UCD115360  Lepidium didymum James P. Smith 1973-5-26 6876 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC161584  Lepidium nitidum Joseph P. Tracy 1908-6-8 2642 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UCD115824  Lepidium nitidum Joseph P. Tracy 1948-5-31 17990 Humboldt Harris. 762 Comment
  CAS-BOT-BC12877  Lepidium strictum Joseph P. Tracy 1941-5-4 16866 Humboldt Scotia. 30 Comment
  CDA3825  Lepidium strictum P. Haggard 1996-7-8 Humboldt Louisiana Pacific Corporation tree nursery, Crannell. Comment
  UC195426  Lepidium virginicum Joseph P. Tracy 1915-9-12 4670 Humboldt opposite Laribee Creek; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  CAS-BOT-BC226527  Leptosiphon acicularis M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles N. of Garberville Comment
  SEINET3363433 Image available Leptosiphon androsaceus Victor Duran 1933-5-10 Humboldt Near Blocksburg Comment
  CAS-BOT-BC226713  Leptosiphon latisectus Alice Eastwood; John Thomas Howell 1937-6-23 4764 Humboldt Dinsmore's [Dinsmore] Comment
  JEPS20620  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt on Van Duzen River opposite Buck Mountain; Northern Coast Ranges, Dinsmore's Ranch 670 Comment
  CAS-BOT-BC334616  Leucanthemum vulgare Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC963848  Leucanthemum vulgare H. E. Parks and S. T. Parks Aug 1943 24257 Humboldt Spruce Cove; Trinidad 60 Comment
  UC673159  Lewisia cotyledon var. heckneri Lincoln Constance and Reed C. Rollins 1942-5-12 2885 Humboldt 6 mi ne Weitchpec (mouth of Bluff Creek); Bluff Creek 152 Comment
  SEINET3071950  Lewisia cotyledon var. howellii Lincoln Constance, Reed C. Rollins 1942-1 2885 Humboldt Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 150 Comment
  UC673016  Lewisia triphylla Joseph P. Tracy 1932-7-10 10376 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  UC181261  Leymus X vancouverensis Joseph P. Tracy 1914-7-16 4586 Humboldt Humboldt Bay Northern Coast Region, Eureka (same spot as my #3744) 0 Comment
  RSA10017  Leymus mollis subsp. mollis Joseph P. Tracy 1927-5-1 7954 Humboldt Sand dunes near Samoa, on Humboldt Bay 6 Comment
  CAS-BOT-BC436496  Ligusticum apiifolium Doris K. Kildale 1927-7-17 3763 Humboldt Bug Creek 792 Comment
  UC1197175  Ligusticum apiifolium J. P. Tracy 1902-7-4 1756 Humboldt immediate vicinity Eureka 0 Comment
  HSC75965  Ligusticum grayi Overton, Butler 1979-8-2 12584 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC21520  Lilaeopsis occidentalis R. W. Spjut 1968-10-26 215 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  UC640274  Lilium columbianum H. and M. Dearing 1939-6-23 3698 Humboldt 5 mi n Trinidad Comment
  CAS-BOT-BC508399  Lilium columbianum L. R. Abrams 1922-6-25 8252 Humboldt Arcata Comment
  HSC76434  Lilium kelleyanum Teresa Prendusi 1981-7-24 468 Humboldt Near Whiteys Peak 1585 Comment
  HSC15575  Lilium kelloggii D. E. Anderson 1962-7-14 2250 Humboldt 2 mi. W of Kneeland Post Office Comment
  UC1198243  Lilium occidentale Joseph P. Tracy 1924-9-21 6886 Humboldt Eureka; Northern Coast Ranges 0 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
  CAS-BOT-BC506200  Lilium vollmeri Albert Vollmer 1949-7-1 2 Humboldt Bog on Bald Mountain Comment
  JEPS19599  Limnanthes douglasii W. L. Jepson 1902-6 1941 Humboldt Redwood Creek Comment
  UC1005603  Limnanthes douglasii Frank W. Gould 1939-5-29 836 Humboldt near ski hut; Horse Mountain 1005 Comment
  UC52386  Linanthus bolanderi Joseph Burtt Davy and Walter C. Blasdale 1899-5 5370 Humboldt between Harris and Hubbards Station Comment
  UC213380  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1920-8-13 5349 Humboldt w of Klamath River (between Pine Creek and Tuley Creek, French Camp Ridge); Northern Coast Ranges, French Camp Ridge 914 Comment
  UC1239561  Linnaea borealis var. longiflora Joseph P. Tracy 1926-6-6 7579 Humboldt near summit on road w from Hoopa to Bair's Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC59497  Linum bienne M. A. Ericksen 1979-5-23 304 Humboldt 880 Central Ave., McKinleyville. Comment
  HSC69790  Linum bienne R. Kalal 1979-5-8 59 Humboldt 7th St. and Union Ave., in Arcata. 18 Comment
  JEPS45743  Linum usitatissimum W. L. Jepson 1936-8-17 17925 Humboldt 2 1/2 mi s of Fields Landing Comment
  JEPS37740  Lithocarpus densiflorus W. L. Jepson 1902-7-14 2024 A Humboldt Hupa Comment
  UC54688  Lithocarpus densiflorus P. E. Goddard 1901-7-6 46 Humboldt Hupa Comment
  UC54690  Lithocarpus densiflorus Mrs. M. H. Manning Oct 1901 Humboldt near Hupa Comment
  SEINET8981428  Lithocarpus densiflorus W. D. Billings 1940-6-25 s.n. Humboldt Cedar Creek, 35 miles east of Arcata Comment
  HSC81535  Lithophragma affine Thomas W. Nelson, Jane P. Nelson 1980-5-25 5258 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  CAS-BOT-BC432296  Lithophragma campanulatum Alice Eastwood; John Thomas Howell 1937-6-24 4861 Humboldt Road ro Horse Mt. Comment
  HSC32143  Lithophragma heterophyllum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5607 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  JEPS79924  Lobularia maritima Joseph P. Tracy 1940-10-5 16750 Humboldt near beach on isthmus leading to Trinidad Head Trinidad 3 Comment
  CAS-BOT-BC283406  Lolium multiflorum A. A. Heller 1923-7-9 13779 Humboldt In a salt flat between Eureka and Arcata Comment
  UCD66191  Lolium multiflorum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Around Fields Landing. Comment
  HSC10304  Lolium perenne W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  RSA254759  Lomatium californicum Thomas W. Nelson, James Nelson 1973-5-28 954 Humboldt McKeown Ranch north of Dinsmore. Comment
  SEINET200763  Lomatium ciliolatum Joseph P. Tracy 1930-7-10 8869 Humboldt Brannan mountain Comment
  HSC39598  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, James Nelson 1976-7-1 2921 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  SEINET12118791  Lomatium dasycarpum J. P. Tracy 1950-1 19000 Humboldt on Albee Road, 2 mi S of Burr Valley Comment
  HSC23086  Lomatium dasycarpum subsp. dasycarpum D. E. Anderson 1965-5-1 3588 Humboldt Along Hwy. 96, 3-4 mi. S of Weitchpec Comment
  RSA167240  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1950-7-6 19000 Humboldt On the Albee Road, 2 miles south of Burr Valley Comment
  RSA167442  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1951-6-24 19537 Humboldt Near Ashfield Butte Comment
  HSC32939  Lomatium dissectum var. dissectum Thomas W. Nelson, James Nelson 1973-5-28 953 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC56003  Lomatium macrocarpum Overton, Butler 1979-7-31 11454 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC74284  Lomatium macrocarpum M. A. Baker 1980-7-11 2784 Humboldt Near Red Mtn. 1341 Comment
  UC906635  Lomatium macrocarpum Joseph P. Tracy 1947-7-5 17780 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC32153  Lomatium macrocarpum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5601 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC45654  Lomatium nudicaule Diane L. Reed 1978-4-22 27 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC73958  Lomatium nudicaule Gail Newton 1980-6-7 125 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC211198  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Brannan Mountain 1219 Comment
  RSA452594  Lomatium tracyi B. Kelly 1977-7-16 537 Humboldt 1/4 mile in from Horse Mountain Road, 1/2 mile below turnoff to summit, near end of unused gravel road. Comment
  UC1438145  Lomatium tracyi Barbara Kelly 1978-5-1 587 Humboldt 1/4 mi from Horse Mountain Road 1/2 mi below turnoff to summit, near end of unused gravel road Comment
  UC1463742  Lomatium tracyi Barbara Kelly 1978-5-1 588 Humboldt 1/4 mi from Horse Mountain Road 1/2 mi below turnoff to summit, near end of unused gravel road Comment
  CAS-BOT-BC240473  Lonicera hispidula Henry M. Pollard 1946-9-6 s.n. Humboldt Near Woodson Mine, Orleans region Comment
  UC168948  Lonicera hispidula var. vacillans Joseph P. Tracy 1904-7-31 2132 Humboldt Eureka Northern Coast Region 0 Comment
  HSC95659  Lonicera hispidula var. vacillans Steven Lee 2004-4-25 22 Humboldt South Fork Rd., from Hwy. 299 to County Rd. 341, 1/8 mi. down river access trail at end of Rd. Comment
  POM92405  Lonicera involucrata L. R. Abrams 1922-6-25 8246 Humboldt Near South Bay. Comment
  CHSC31282  Lonicera involucrata var. ledebourii Mark Stopher 1980-4-11 47 Humboldt Occasional in brushy areas along Elk River. 1 Comment
  HSC69640  Lonicera involucrata var. ledebourii R. Kalal 1980-5-18 19 Humboldt Entrance to Dry Lagoon State Park, along abandoned Rd. 21 Comment
  UC726016  Lotus aboriginus A. A. Heller 1937-6-8 15897 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge) Comment
  UCD106722  Lotus corniculatus S. P. Lynch 1975-6-19 1368 Humboldt Along U.S. Hwy 101 at Loleta. Comment
  UC1223434  Lotus crassifolius var. crassifolius Joseph P. Tracy 1935-7-29 14341 Humboldt ne of Ranger Station (at beginning of Salmon Summit Trail, Humboldt County side); Trinity Summit, Salmon Summit Trail Comment
  UC80841  Lotus denticulatus W. W. Price 1890-7-1 Humboldt Mad River Comment
  JEPS55515  Lotus humistratus Mrs. M. H. Manning 1901-5 69 Humboldt near Hupa Comment
  UC495724  Lotus humistratus Joseph P. Tracy 1929-4-28 8547 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA90323  Lotus humistratus F. W. Peirson 1926-7-13 7047 Humboldt Mad River, vicinity of Blue Lake. Comment
  UC162805  Lotus humistratus Joseph P. Tracy 1908-6 2701 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzne River 762 Comment
  UC15635  Lotus micranthus Harley P. Chandler May 1901 1136 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  UC1223396  Lotus micranthus Joseph P. Tracy 1933-7-9 12644 Humboldt opposite Willow Creek; Trinity River Valley Comment
  SEINET3694458 Image available Lotus pinnatus Joseph P. Tracy 1937-7-19 15461 Humboldt Larrabee Valley 732 Comment
  HSC98994  Lotus unifoliolatus var. unifoliolatus Cara Witte 2008-8-16 1021 Humboldt Forest Service Road 5N10. 1/4 mile east of intersection with National Forest 1. 1359 Comment
  HSC57120  Luina hypoleuca Overton, Butler 1979-7-25 9865 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  SEINET11810522  Luina hypoleuca J. P. Tracy 1944-1 17489 Humboldt near Romanzoffia Creek, Willow Creek Canyon, along Trinity Highway 366 Comment
  CAS-BOT-BC198268  Lupinus Wm. Bridge Cooke 1946-6-11 17370 Humboldt Roadside 1 mi. N of Eureka Comment
  HSC75509  Lupinus albicaulis J. O. Sawyer, R. J. Cole 1977-7-3 30016 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC1223274  Lupinus albicaulis var. shastensis Joseph P. Tracy 1940-7-14 16687 Humboldt Wilder Ridge Comment
  HSC98761  Lupinus albifrons var. collinus Cara Witte 2008-7-2 819 Humboldt Board Camp Mountain/ Tri Board Camp. Forest Service Road 4N38. 1577 Comment
  HSC14778  Lupinus arboreus R. A. Rasp 1964-5-17 39 Humboldt 1/2 mi. N of Fairhaven on the Samoa pennisula Comment
  HSC40963  Lupinus arboreus Linda M. Barker 1976-5-13 1472 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  RSA636108  Lupinus arboreus R. F. Thorne 1974-7-29 45078 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  HSC14790  Lupinus bicolor J. R. Woodside 1963-5-19 1 Humboldt 1 1/4 mi. N of Fairhaven Comment
  HSC14788  Lupinus bicolor C. E. Fellows 1965-5-19 87 Humboldt 1.6 mi. S of 7th St. on Hwy. 101 at bridge, E side of Hwy., S side of bridge Comment
  JEPS109559  Lupinus elmeri Dean Wm. Taylor, Tom Engstrom 2002-7-19 18250 Humboldt South Fork Mountain, Blake Mountain, opening along Forest Road 1 ca. 0.5 mi N of the highest point on the ridge 1737 Comment
  UC1223282  Lupinus formosus Joseph P. Tracy 1941-9-1 16997 Humboldt Blue Lake Comment
  UC157019  Lupinus formosus Joseph P. Tracy 1904-7-4 2113 Humboldt Bucksport; region about Humboldt Bay, Bucksport 0 Comment
  RSA167420  Lupinus latifolius subsp. latifolius Joseph P. Tracy 1933-8-30 13032 Humboldt Grouse Mountain, near Clear Lake. 1524 Comment
  UC1776379  Lupinus latifolius var. latifolius R. Spellenberg 1990-7-9 Humboldt Extreme E edge county, 14 air mi. SW of Burnt Ranch, 14 mi S of Calif Hwy 299 and Berry Summit on USFS Rd. 1, on Pilot Ridge. 1371 Comment
  HSC95097  Lupinus littoralis Andrea Pickart 2002-7-3 151 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  UC184850  Lupinus luteolus Joseph P. Tracy 1911-7-10 3496 Humboldt Valley of Trinity River near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River nr Willow Cre 152 Comment
  HSC36152  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2049 Humboldt Along Rd. 2S08 to Pine Mtn. 1524 Comment
  HSC41637  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3583 Humboldt N of Alder Springs at head of N Fork of Conley Creek 1555 Comment
  UC161546 Image available Lupinus microcarpus Joseph P. Tracy 1911-7-4 3280 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River, Willow Creek; Willow Creek, Humboldt Co. 152 Comment
  UC302327  Lupinus nanus Joseph P. Tracy 1925-5-31 7053 Humboldt Bridgeville 228 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
  UCD109516  Lupinus rivularis P. B. Kennedy 1929-6-12 s.n. Humboldt Around Eureka. Comment
  HSC58118  Lupinus tracyi G. L. Clifton, Griswold 1979-8-1 12083 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC14895  Lupinus variicolor F. Morrell 1949-4-13 6 Humboldt Bayside Rd. Comment
  OBI19043  Luzula cascadensis Joseph P. Tracy 1930-7-23 9128 Humboldt Grouse Mountain; at "Cold Springs" 1433 Comment
  HSC97487  Luzula comosa Cara Witte 2007-5-23 109 Humboldt Near Grouse Mountain. Along 4N32. Approximately 0.5 miles south of intersection with 5N04 and 4N32E. 1425 Comment
  UCR265767  Luzula macrantha Peter F. Zika 2011-7-3 25500 Humboldt Outer North Coast Ranges, Titlow Hill Road, near junction with Forest Road 6N36, 1 air mi south of Horse Mountain 1410 Comment
  SEINET8717647 Image available Luzula multiflora Harold E. Parks, Joseph P. Tracy 1947-1 11643 Humboldt McKay Camp. South Fork Mountain 1676 Comment
  HSC97961  Luzula parviflora Cara Witte 2007-6-13 258 Humboldt Along Forest Service Road 5N04. 1/4 mile east of spring near Grouse Mountain. 1564 Comment
  UC1103680  Luzula parviflora Joseph P. Tracy 1925-6-7 7056 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC1440279  Lycopodiella inundata L. L. Kiefer and D. Branscomb 1964-5-20 1436 Humboldt in the sphagnum bog Big Lagoon State Park 15 Comment
  UC534971  Lycopodium clavatum H. E. and W. K. Parks 1932-7-30 1132 Humboldt Hammond Lumber Company Camp 21 Trinidad 152 Comment
  CHSC57533  Lysichiton americanus Michelle Y. Wagner 1990-4-10 16 Humboldt Hope Creek Trail; 5 miles n of Orick. Damp ravine on w side of Hwy 101. 152 Comment
  UC1198266  Lysichiton americanus Joseph P. Tracy 1947-5-24 17690 Humboldt Big Lagoon 9 Comment
  HSC49359  Lythrum hyssopifolia R. York 1979-5-18 302 Humboldt Along railroad tracks near the Arcata Redwood office along Hwy. 101 between Arcata and Eureka. Comment
  RSA0015875  Lythrum hyssopifolia H. M. Pollard 1945-8-28 s.n. Humboldt Near Harley place. Comment
  RSA15579  Madia elegans subsp. elegans C. B. Wolf 1927-8-28 1162 Humboldt On the Trinity River, 3 miles from Weitchpec Comment
  CAS-BOT-BC344357  Madia exigua L. R. Abrams 1916-7-11 5995 Humboldt Between Blocksberg & Bridgeville Comment
  CAS-BOT-BC343028  Madia gracilis Doris Kildale 1931-6-6 10856 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  SEINET3148089  Madia gracilis J. B. Davy, W. C. Blasdale 1899-6-19 5674 -C Humboldt Hoopa Mt. Comment
  UC176473  Madia gracilis Joseph P. Tracy 1913-6-22 4257 Humboldt opposite Buck Mountain (in Van Duzen River Valley, Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  CAS-BOT-BC343593  Madia sativa Palmer Stockwell 1934-7-14 65 Humboldt Little River Comment
  CAS-BOT-BC508510  Maianthemum dilatatum O. Con Mary 1921-9-26 s.n. Humboldt Eureka Comment
  RSA24195  Maianthemum dilatatum Carl B. Wolf 1941-3-1 9978 Humboldt 4 miles northeast of Strongs Station (Van Duzen River) on Rd. to Yager 152 Comment
  SEINET12050376  Maianthemum dilatatum F. H. Utech 1988-1 88 -272 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  RSA1087  Maianthemum racemosum subsp. amplexicaule E. R. Johnson 1928-8-26 1147 Humboldt Arcata. Comment
  CAS-BOT-BC511454  Maianthemum racemosum subsp. amplexicaule Doris K. Kildale 1926-3-26 1640 Humboldt Old Fortuna road 609 Comment
  CAS-BOT-BC511457  Maianthemum racemosum subsp. amplexicaule M. P. Dillingham 1972-4-30 s.n. Humboldt Vicinity of Whitehorn, Douglas fir forest Comment
  HSC100563  Maianthemum racemosum subsp. amplexicaule Carl C. Marshall Apr 1886 128 Humboldt Damp woods. Comment
  RSA377681  Maianthemum racemosum subsp. amplexicaule W. Hutchinson s.n. Humboldt [no locality specified] Comment
  RSA407376  Maianthemum stellatum Lyman Benson 1929-7-19 1859 Humboldt Dyerville to Matole River. 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
  POM98598  Malacothrix floccifera F. W. Peirson 1926-7-14 s.n. Humboldt Sandy shores of Eel River about 5 miles south of Scotia Comment
  HSC18696  Malus fusca W. R. Brigham 1962-5-19 10 Humboldt S of Big Lagoon. Comment
  UC180179  Malus fusca Joseph P. Tracy 1914-5-3 4420 Humboldt Eureka; Northern Coast Region 0 Comment
  UC176969  Malva nicaeensis Joseph P. Tracy 1912-6-9 3687 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  HSC7033  Marah oregana R. I. Bonn 1965-5-9 48 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  SJSU2541  Marah oregana H. L. Buckalew 1962-6-28 Humboldt Prairie Cr Redwoods State Park Comment
  UC990711  Marah oregana Roxana S. Ferris 1951-9-5 12448 Humboldt Trinidad Head Comment
  CDA42220  Marah oregana T. C. Fuller 1966-5-24 14711 Humboldt West side of Highway 101, 2 miles north of Trinidad. 0 Comment
  HSC49806  Marah oregana R. York 1979-4-13 224 Humboldt Just N of College Cove Comment
  RSA239725  Marah oregana Larry E. DeBuhr, Gary D. Wallace 1973-5-19 1116 Humboldt Prairie Creek Redwood State Park; along Gold Bluff Beach. Comment
  RSA424587  Marah oregana T. S. Elias, Barbara A. Elias 1987-8-24 10620 Humboldt Prairie Creek Redwoods State Park; Gold Bluffs Beach. Comment
  HSC31809  Medicago lupulina Donald Spalinger 1974-4-25 23 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  SEINET202035  Melica aristata Joseph P. Tracy 1948-8-10 18157 Humboldt Trinity summit. On ridge 2 mi. east of Grove's Prairie. Comment
  HSC10337  Melica californica J. A. Waller 1965-5-2 31 Humboldt Along Hwy. 96 near Willow Creek. Comment
  SEINET200336 Image available Melica californica J. P. Tracy 1913-6-18 4195 Humboldt Dinsmore's Ranch vally of Van Duzen River opposite Buck Mtn N Coast Ranges 762 Comment
  UC1103760  Melica californica Joseph P. Tracy 1950-6-15 18780 Humboldt 5 mi n Harris; Mail Ridge 944 Comment
  UCD66181  Melica californica D. W. Cooper 1956-6-5 s.n. Humboldt Upper Mattole area. Benbow Ranch, Ettersburg. Comment
  HSC58679  Melica subulata G. L. Clifton, Griswold 1979-8-2 12213 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC526917  Melica subulata Joseph P. Tracy 1933-7-26 12910 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC526922  Melica subulata Joseph P. Tracy Jul 16 1930-Jul 19 1930 8913 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UCD88616  Melica subulata August L. Hormay 1932-5-11 s.n. Humboldt Korbel. Comment
  HSC79428  Melica torreyana Kenneth Clark 1980-3-22 529 Humboldt Along access trail to Dead Man's Gulch. 76 Comment
  HSC26919  Melilotus albus Brad Klipfel 1973-7-30 218 Humboldt Samoa Rd., near Mad River Slough Comment
  POM47605  Melissa officinalis Unspecified 1923-7-29 91 Humboldt Rohnerville. Damp flat. 15 Comment
  HSC14252  Mentha canadensis H. E. Parks, S. T. Parks 1930-9-14 728 Humboldt Big Lagoon Comment
  UC154001  Mentha canadensis Joseph P. Tracy 1908-6 2930 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1225833  Mentha canadensis Joseph P. Tracy 1941-8-17 16993 Humboldt borders of pond near Three Cabins (se of Butler Valley); se of Butler Valley 457 Comment
  HSC12347  Mentha pulegium Steve Dorei 1970-10-31 135 Humboldt Scotia Bluffs, north of railroad tracks Comment
  HSC70912  Mentzelia dispersa Gail Newton 1980-7-23 1740 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC7849  Menziesia ferruginea subsp. ferruginea J. C. Reppas 1963-4-20 33 Humboldt 1 mi. N of Fickle Hill Rd. Comment
  UC164898  Micropus californicus var. californicus Joseph P. Tracy 1908-6-9 2653 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC322678  Microseris laciniata Doris K. Kildale 1927-7-17 3750 Humboldt Big Creek 792 Comment
  JEPS13225  Microseris laciniata subsp. laciniata Lincoln Constance 1934-5-24 624 Humboldt s slope lower Look Prairie; South Fork Eel River, Bull Creek region, s slope of Lower Lo 121 Comment
  UC582731  Microseris nutans Joseph P. Tracy 1932-7-11 10417 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC20685  Mimulus aurantiacus var. aurantiacus Steve Dorei 1970-10-31 132 Humboldt Scotia bluff area, N side of railroad tracks. Comment
  JEPS10550  Mimulus breweri W. L. Jepson 1902-7-23 2108 Humboldt Trinity Summit 2133 Comment
  UC162579  Mimulus cardinalis Joseph P. Tracy 1911-7-10 3480 Humboldt tributary of Trinity River (along Willow Creek near mouth); Northern Coast Ranges 243 Comment
  UC615326  Mimulus cardinalis Beryl O. Schreiber 1932-7-11 364 Humboldt road s Garberville Comment
  JEPS22954  Mimulus dentatus Volney Rattan June 1882 Humboldt Humboldt Bay Comment
  UC741471  Mimulus grandis F. W. Hunnewell 1925-7-21 9744 Humboldt n Eureka Comment
  HSC20761  Mimulus guttatus R. Spellenberg 1964-6-15 407 Humboldt 0.5 mi. S of Humboldt Hill exit, 5 mi. S of Eureka Comment
  HSC95361  Mimulus guttatus Andrea Pickart 2002-8-7 198 Humboldt Arcata Bottoms; Along Lanphere Rd. 0 Comment
  RSA60480  Mimulus guttatus John H. Thomas 1949-6-12 896 Humboldt Along road between Orick and Martin's Ferry. 15.5 miles west of Martin's Ferry. 762 Comment
  HSC55693  Mimulus moschatus Overton, Butler 1979-7-26 10014 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC76046  Mimulus moschatus Overton, Butler 1979-8-2 12559 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC82403  Mimulus moschatus Thomas W. Nelson 1979-7-11 5035 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  UC1196788  Mimulus nanus var. nanus Joseph P. Tracy 1933-7-15 12751 Humboldt near head 8-mile Ridge; Northern Coast Ranges, South Fork Mountain 1645 Comment
  UC1173697  Mimulus pilosus Joseph P. Tracy 1939-9-24 16502 Humboldt near Blue Lake; Mad River 15 Comment
  UC424834  Mimulus pilosus Milo S. Baker 1927-8-15 2438 f Humboldt near S. Fork Station; Eel R. Comment
  UC582493  Mimulus pulsiferae Joseph P. Tracy 1926-6-20 7616 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
Read comments
Sep 10 2013
  HSC42454  Mimulus pulsiferae Barbara Kelly 1977-7-16 539 Humboldt On Horse Mtn. Rd., 1/2 mi. below where it forks; 1.5 mi. below summit 1402 Comment
  HSC44532  Mimulus tilingii Brad Klipfel 1973-7-1 141 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 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
  HSC36642  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1899 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC74246  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-7-11 2807 Humboldt Near Red Mtn. 1433 Comment
  UC902093  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt along trail from Hoopa to summit (near Box Camp); Trinity Summit 1524 Comment
  HSC71160  Mitella diversifolia Thomas W. Nelson 1977-6-15 3422 Humboldt Along USFS rd connecting FS 6N01 to 5N10, just N of Clear Lake 1372 Comment
  JEPS49691  Mitella ovalis Joseph P. Tracy 1923-4-8 6176 Humboldt Carlotta Northern Coast Ranges (along stream) 60 Comment
  HSC100651  Mitella trifida Carl C. Marshall Mar 1886 153 Humboldt Wet shaded places. Comment
  RSA0017594  Monardella villosa subsp. subserrata Marcus E. Jones 1931-7-16 s.n. Humboldt Junction, East of Arcata. Comment
  JEPS63367  Monardella villosa subsp. villosa W. L. Jepson 1936-8-12 17883 Humboldt Philipsville South Fork Eel River. Comment
  UC2035935  Monardella villosa subsp. villosa C. Epling, Wm. Robison 1935-7-24 Humboldt Dyerville Comment
  HSC32127  Montia fontana D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5587 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC55193  Montia parvifolia G. L. Clifton, Terry Griswold 1979-8-2 12267 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  JEPS43174  Montia parvifolia Milo S. Baker 1923-7-31 143 Humboldt Butte's Run; North Coast, Butte's Run Comment
  RSA322445  Montia parvifolia J. P. Smith 1973-5-26 6851 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC16102  Morella californica H. E. Parks Mar 1934 4833 Humboldt Spruce Cove, Trinidad Comment
  SD40075  Morella californica Edith A. Purer 1932-7-27 4134 Humboldt Samoa Comment
  RSA10148  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains; Trinity Summit. Wet Meadow at Corral Prairie 0 Comment
  UCD138687  Muscari armeniacum Joseph M. DiTomaso 1976-3-28 344 Humboldt Samoa Cookhouse 3 miles northwest of Eureka. 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
  UCD119529  Myosotis latifolia James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6855 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  CAS-BOT-BC101665  Myrica californica V. Rattan s.n. Humboldt unspecified Comment
  RSA46887  Myrica californica Doris K. Kildale 1926-6-18 2393 Humboldt Gold Bluffs. Comment
  UC562532  Myriophyllum aquaticum Joseph P. Tracy 1933-7-20 12810 Humboldt Along Mad River, near Blue Lake. 15 Comment
  RSA10044  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt Phillipsville 122 Comment
  HSC6891  Nasturtium officinale Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC12027  Nasturtium officinale D. Santana 1970-11-2 106 Humboldt E side of old Hwy. 1 in ditch Comment
  HSC6872  Nasturtium officinale D. E. Anderson 1962-3-24 1947 Humboldt Along Turner Rd. Comment
  HSC56334  Navarretia divaricata Overton, Butler 1979-8-2 12710 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC99451  Navarretia divaricata subsp. divaricata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 101 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  RSA43882  Navarretia intertexta H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  UC60881  Navarretia intertexta Harley P. Chandler Jun 1901 1392 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC1197896  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1933-7-9 12646 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  JEPS70471  Navarretia squarrosa Joseph P. Tracy 1921-7-23 5857 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  UC908184  Navarretia viscidula Joseph P. Tracy 1927-7-24 8294 Humboldt Upper Mattole 152 Comment
  HSC13584  Nemophila menziesii H. E. Parks, J. P. Tracy 1930-5-25 797 Humboldt Laribee Valley 793 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
  UC1103814  Nemophila menziesii Joseph P. Tracy 1923-6-24 6358 Humboldt Murphy Ridge Bald Mt., Murphy Ridge (Balt Mt.) 1066 Comment
  POM73962  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt Near Hydesville. 60 Comment
  HSC58023  Nemophila parviflora G. L. Clifton 1979-7-31 11829 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1245393  Nemophila parviflora Joseph T. Gregory 1933-7-11 364 Humboldt nr Clear Lake (Grouse Mt.); nr Clear Lake, Grouse Mt. 1524 Comment
  UC562591  Nemophila pedunculata Joseph P. Tracy 1927-4-10 7890 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  UC34955  Nicotiana attenuata Chesnut and Drew 1888-7-23 Humboldt Hyampon Comment
  UC585996  Nicotiana quadrivalvis Joseph P. Tracy 1930-10-19 9223 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  RSA176510  Noccaea fendleri subsp. glauca Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 854 Comment
  HSC8077  Notholithocarpus densiflorus F. Sandborg, J. Sandborg 1968-7-19 58 Humboldt Bluff Creek near Notice Creek 793 Comment
  UCR4969  Notholithocarpus densiflorus Frank C. Vasek 1966-7-13 660713- 03 Humboldt North Coast Range, 3 mi. west of Garberville 450 Comment
  HSC8078  Notholithocarpus densiflorus var. densiflorus D. E. Anderson 1961-8-27 1759 Humboldt 8 mi. W of Redwood Creek Br. along Hwy. 299 Comment
  HSC60379  Nuphar polysepala J. M. DiTomaso 1979-4-22 908 Humboldt Crannell Rd. exit between Westhaven and McKinleyville Comment
  HSC59108  Nuttallanthus texanus M. A. Baker 1978-5-6 481 Humboldt 2 km. S of Weitchpec Comment
  UC582473  Nuttallanthus texanus Joseph P. Tracy 1928-5-6 8431 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  RSA46471  Oenanthe sarmentosa Doris K. Kildale 1926-7-16 2380 Humboldt Big Lagoon Comment
  POM271859  Oenothera glazioviana Lyman Benson 1928-7-10 428 Humboldt Clam Beach, Trinidad 46 Comment
  POM224764  Oenothera glazioviana P. A. Munz 1936-8-10 14335 Humboldt At edge of Rio Del. Comment
  CHSC70156  Oenothera wolfii David K. Imper 1987-7-26 Humboldt 2 mi. south of Cape Mendocino, next to Hwy 1, south side of Point called or near to Devils Gate. Along road. 4 Comment
  UC1196945  Oenothera wolfii Joseph P. Tracy 1934-8-24 13598 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC5070  Oreostemma alpigenum var. andersonii J. P. Tracy 1919-9-22 5278 Humboldt Trinity Summit 1890 Comment
  HSC39391  Orobanche fasciculata D. E. Anderson, J. P. Smith 1971-7-6 - 1274 Humboldt Horse Mtn. Comment
  UC1197445  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1948-5-31 18004 Humboldt Near Harris. Comment
  HSC102035  Orthilia secunda M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 938 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC55161  Orthilia secunda Gilbert Muth 1979-8-1 12130 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC73605  Orthocarpus cuspidatus subsp. copelandii M. A. Baker 1980-7-22 3096 Humboldt Near Grogan Hole. 1676 Comment
  HSC100675  Orthocarpus erianthus Carl C. Marshall Jun 1887 468 Humboldt Vicinity of Garberville. Comment
  POM296047  Orthocarpus erianthus var. gratiosus S. K. Harris 1942-6-10 1474 Humboldt Bear River Ridge. 457 Comment
  HSC56063  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11707 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC100700  Orthocarpus purpurascens Carl C. Marshall May 1886 209 Humboldt Salt marshes, Humboldt Bay. Comment
  RSA80283  Orthocarpus purpurascens var. latifolius F. W. Peirson 1926-7-14 7064 Humboldt Table Bluff Lighthouse, south of Eureka. Comment
  HSC56175  Osmorhiza berteroi G. L. Clifton, Terry Griswold 1979-8-1 12082 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1222754  Osmorhiza berteroi Joseph P. Tracy 1950-6-25 18889 Humboldt Burr Valley Buck Mountain (nw slope of mt.) 1066 Comment
  HSC65513  Osmorhiza occidentalis M. A. Baker 1980-6-8 1907 Humboldt Near Buck Flat. 1554 Comment
  JEPS14243  Osmorhiza occidentalis Joseph P. Tracy 1927-6-12 8157 Humboldt Horse Mountain; lower slopes 1219 Comment
  RSA254742  Osmorhiza purpurea Thomas W. Nelson, James Nelson 1973-5-28 945 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC176987  Oxalis albicans subsp. pilosa Joseph P. Tracy 1912-6-9 3682 Humboldt Alton Northern Coast Ranges 30 Comment
  JEPS43158  Oxalis corniculata Lincoln Constance 1934-5-29 719 Humboldt upper Look Prairie; South Fork of Eel River, Bull Creek Region 365 Comment
  HSC16711  Oxalis oregana D. E. Anderson 1965-5-15 3689 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  SBBG67545  Oxalis oregana L. Rowntree 1931-7-24 Humboldt Carlotta Comment
  SEINET3347662 Image available Oxalis oregana Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15204 Humboldt Bolling Grove State Park; unspecified Comment
  RSA254427  Oxalis oregana Larry L. Norris 1975-4-10 2310 Humboldt Samuel P. Taylor State Park Comment
  RSA34052  Oxalis oregana A. A. Heller 1923-7-10 13787 Humboldt Humboldt Camp between Scotia and Pepperwood Comment
  UCD134738  Packera bolanderi var. bolanderi K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, near Scotia. Comment
  UC1103779  Panicum capillare Joseph P. Tracy 1920-8-15 5369 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  UC183455  Panicum capillare Joseph P. Tracy 1911-7-7 3407 Humboldt three mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, near Beebe's Ranch 914 Comment
  UC184379  Panicum capillare Joseph P. Tracy 1912-10-20 4009 Humboldt Alton Northern Coast Region, Alton 30 Comment
  SEINET3133169  Panicum lanuginosum var. fasciculatum R. W. Spellenberg 1966-9-8 1630 Humboldt Bank of S. Fk. Eel River at Hwy. 101, 5 mi S of Barberville Comment
  HSC26886  Papaver somniferum Keith Chamberlin 1973-7-24 Humboldt 10th and F St., Arcata Comment
  SEINET200959 Image available Parapholis incurva Joeseph P. Tracy 1937-6-5 15328 Humboldt Mouth of Little River. 3 Comment
  HSC82967  Parapholis strigosa A. L. Eicher 1986-7-7 Humboldt Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  UCD123252  Parentucellia viscosa Linda M. Barker 1976-7-5 1640 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  CAS-BOT-BC259727  Paspalum distichum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC99555  Pedicularis racemosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 220 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC74031  Pellaea brachyptera Gail Newton 1980-7-22 1674 Humboldt Near Devils Backbone 1554 Comment
  HSC98783  Pellaea brachyptera Cara Witte 2007-8-9 629 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .2 miles from intersection with Forest Service Road 4N32B. 1413 Comment
  UC218629  Pellaea mucronata var. mucronata Joseph P. Tracy 1921-5-30 5494 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC100393  Pellaea ornithopus Carl C. Marshall Apr 1887 361 Humboldt Supply Creek, a mile or two from Hoopa. Comment
  HSC55753  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-26 10285 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC73629  Penstemon azureus M. A. Baker 1980-7-23 3146 Humboldt Near Orleans Mtn. 1859 Comment
  HSC54203  Penstemon deustus Terry Griswold, Marvin Butler 1979-7-12 7243 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC56218  Penstemon deustus G. L. Clifton, Terry Griswold 1979-8-2 12241 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1222787  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1950-6-15 18782 Humboldt 7 mi n Harris (at the Jenk's Ranch); n of Harris, at the Jenk's Ranch Comment
  JEPS28976  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16544 Humboldt Garberville Garberville (along river) 152 Comment
  NY604551  Penstemon laetus var. sagittatus J. P. Tracy 1933-7-25 12827 Humboldt Horse Mountain 1432.6 Comment
  RSA517741  Penstemon newberryi subsp. berryi W. K. Parks 1933-07 s.n. Humboldt South Fork Mountain. Comment
  UC1586908  Penstemon parvulus Juha Pykala and D. H. Norris 1987-6-10 1523 Humboldt on Onion Lake Road about 1-2 mi s from Onion Lake; Six Rivers National Forest, s from Onion Lake 1280 Comment
  NY130492  Penstemon rattanii V. Rattan 06 1879 58 Humboldt 792.5 Comment
  UC169849  Penstemon rattanii var. kleei V. Rattan 1870-1 Humboldt Comment
Read comments
Sep 7 2007
  RSA0094697  Pentagramma triangularis A. Davidson 1923-8-11 17064 Humboldt Near Scotia. Comment
  UC1051573  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1948-9-26 18235 Humboldt Boynton Prairie Fickle Hill (edge, 6 mi se of Arcata) 609 Comment
  HSC98755  Perideridia oregana Cara Witte 2007-7-27 602 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1560 Comment
  CAS-BOT-BC419742  Persicaria wallichii Stuart K. Harris 1959-7-15 20144 Humboldt Falk Comment
  HSC6053  Petasites frigidus var. palmatus V. G. Vieira 1963-3-30 38 Humboldt Mad River Comment
  HSC37230  Phacelia bolanderi Lon Hall 1975-6-19 386 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  RSA30617  Phacelia bolanderi Lincoln Constance, R. C. Rollins 1942-5-20 2999 Humboldt Eel River at Dyerville bridge, two miles north of Weott. 49 Comment
  UC672428  Phacelia bolanderi Herbert L. Mason 1928-7-20 4910 Humboldt near Weitchpec; Klamath River Canyon Comment
  HSC70694  Phacelia corymbosa Gail Newton 1980-7-15 1559 Humboldt Near Sims Mtn. 1311 Comment
  HSC99465  Phacelia heterophylla subsp. virgata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 119 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA167317  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1951-6-24 19539 Humboldt Rock exposure between serpentine rock pile and Ashfield Butte. Kneeland Prarie. 762 Comment
  UC660089  Phacelia heterophylla subsp. virgata G. L. Stebbins Jr. 1941-5-27 3111 Humboldt 1/4 mi w Bridgerville (on hwy to Eureka) Comment
  HSC58179  Phacelia mutabilis G. L. Clifton 1979-8-2 12263 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC169011  Phacelia nemoralis subsp. oregonensis Harley P. Chandler 1901-6-4 1336 Humboldt Campbell Creek North Coast Ranges, Hupa Indian Reservation 152 Comment
  JEPS81021  Phacelia nemoralis subsp. oregonensis J. P. Smith and Steve Selva 1970-6-14 3828 Humboldt along CA 96 at Whitmore Creek 152 Comment
  RSA30622  Phacelia nemoralis subsp. oregonensis Lincoln Constance, R. C. Rollins 1942-5-11 2872 Humboldt Hoopa Valley 6 miles S of Hoopa. 122 Comment
  HSC57441  Phacelia procera G. L. Clifton, Griswold 1979-7-26 10242 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC99429  Phacelia procera K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 78 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC922010  Phalaris californica Joseph P. Tracy 1938-6-7 15861 Humboldt n side of Mad River 1/2 mi e bridge on Arcata-Blue Lake highway; n side of Mad River 30 Comment
  UC666824  Philadelphus lewisii Joseph P. Tracy 1938-6-9 15872 Humboldt Dobbyn Creek 152 Comment
  RSA44530  Phleum pratense Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  RSA728071  Phleum pratense Gary D. Wallace 1979-6-24 1865 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  SEINET200960 Image available Phleum pratense Joseph P. Tracy ` 2892 Humboldt Ridge between van Duzen and Mad Rivers near low gap 914 Comment
  UC1145045  Phleum pratense Joseph P. Tracy 1948-8-8 18089 Humboldt Iaqua; near the school house 609 Comment
  HSC24107  Phlox adsurgens J. O. Sawyer 1970-6-27 2305 Humboldt Site 318. 1494 Comment
  HSC64189  Phlox adsurgens J. O. Sawyer, M. A. Ericksen 1979-6-23 3379 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC99405  Phlox adsurgens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 54 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC33147  Phlox diffusa Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1243 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  HSC56081  Phlox diffusa G. L. Clifton, Griswold 1979-7-31 11765 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC100895  Phlox douglasii Carl C. Marshall Jun 1886 349 Humboldt Trinity Summit. Comment
  RSA273312  Phoradendron libocedri Thomas W. Nelson, Jane P. Nelson 1976-6-16 2739 Humboldt Just W of Alder Springs. 1524 Comment
  HSC45100  Physocarpus capitatus R. Sutherland 1978-5-12 9 .12578 Humboldt 282 Comment
  LA206239  Picea sitchensis Carl Epling; William Robison 1935-7-22 sn Humboldt near Patrick's Point Comment
  UC535711  Picea sitchensis Eleanor Armstrong 1934-7-31 1145 Humboldt Patricks Point 30 Comment
  HSC55145  Pinus monticola G. L. Clifton, Griswold 1979-8-1 12046 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC72826  Pinus monticola Gail Newton 1980-6-16 192 Humboldt Near Onion Mtn. 1280 Comment
  UC55660  Pinus ponderosa P. E. Goddard 1901-7-10 51 Humboldt ona Hupa (<currently spelled Hoopa as a place name>) Comment
  UC14939  Piperia elegans Harley P. Chandler Jun 1901 1385 b Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC14937  Piperia elegans Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 57721 Humboldt Trinity Summit trail, low down North Coast Ranges, Trinity Summit Comment
  UC1196432  Piperia elongata Joseph P. Tracy 1925-8-9 7224 Humboldt Salmon Creek Northern Coast Ranges, South Fork of Eel River 91 Comment
  RSA273348  Piperia transversa J. D. Ackerman 1974-8-13 404 Humboldt Ca. 2 miles north of Manila, between sand dunes and Mad River Slough Comment
  HSC24556  Pityopus californicus Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  HSC48733  Pityopus californicus J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 519 Humboldt Off FS 10N05. SE slope of Hopkins Butte. Bulk Collection 181 1037 Comment
  JEPS61017  Plagiobothrys Joseph P. Tracy 1942-5-16 17355 Humboldt Garberville; 1 mi ne of town 152 Comment
  UC1186480  Plagiobothrys bracteatus John H. Weiler and A. P. Nelson 1960-6-28 60250 Humboldt vernal pool on floodplain of river 3.6 mi w Humboldt-Trinity County line; Van Duzen River Comment
  UC175581  Plagiobothrys nothofulvus Mrs. M. H. Manning 1902-4-14 Humboldt near Hupa Comment
  HSC100407  Plagiobothrys nothofulvus Carl C. Marshall Apr 1887 371 Humboldt Hoopa Valley. Comment
  UC1239610  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-21 14997 Humboldt Iaqua 609 Comment
  UC1541669  Plagiobothrys reticulatus H. E. and S. T. Parks July 1937 24042 Humboldt Trinidad, Spruce Cove Comment
  UCD120865  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove, Trinidad. 64 Comment
  CDA40667  Plagiobothrys reticulatus P. Haggard 1972-8-16 s.n. Humboldt West End Road, Blue Lake. 0 Comment
  UC667004  Plagiobothrys reticulatus Joseph P. Tracy 1939-4-18 16214 Humboldt w side South Fork Eel River at Garberville; w side South Fork Eel River, Garberville 152 Comment
  JEPS61044  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-5-25 13844 Humboldt Fort Seward 106 Comment
  JEPS60992  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1932-6-26 10274 Humboldt Fort Baker Ranch North Coast Ranges 762 Comment
  UC1222197  Plagiobothrys scouleri Joseph P. Tracy 1948-5-31 18021 Humboldt at the former William Perry place Dobbyn Dreek Comment
  UC1222202  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18315 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC16830  Plantago erecta D. B. Bader 1963-3-15 28 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  UC1196140  Plantago erecta Joseph P. Tracy 1912-5-12 3638 Humboldt Eureka Northern Coast Region 0 Comment
  UC585986  Plantago erecta Joseph P. Tracy 1932-5-10 9930 Humboldt Bear River Bridge Northern Coast Ranges 609 Comment
  JEPS6422  Plantago erecta Joseph P. Tracy 1932-5-10 9930 Humboldt Bear River Ridge Northern Coast Ranges, Mattole Valley 609 Comment
  BLMAR262  Plantago lanceolata Jennifer Anthony-Wheeler 1998-7-14 262 Humboldt King range, strawberry rock grazing allotment 280 Comment
  HSC54709  Plantago major Overton, Butler 1979-7-26 10057 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  CDA18205  Plantago maritima G. D. Barbe, T. C. Fuller 1974-6-17 1831 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  HSC16857  Plantago maritima C. E. Fellows 1965-5-17 79 Humboldt Luffenholtz Beach County Park Comment
  POM312368  Plantago maritima Malcolm A. Nobs, S. Galen Smith 1949-8-3 1205 Humboldt 2 miles north of Eureka, bordering Humboldt Bay. Comment
  UC1192030  Plantago subnuda Malcolm A. Nobs and S. Galen Smith 1949-8-3 1188 Humboldt s outskirts of Eureka Eureka Comment
  HSC55041  Platanthera dilatata var. leucostachys Gilbert Muth 1979-7-31 11506 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC96478  Platanthera dilatata var. leucostachys Gordon Leppig 1997-6-19 442 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS79897  Platanthera leucostachys Joseph P. Tracy 1933-7-25 12842 Humboldt in bog Grouse Mountain 1524 Comment
  UC1196421  Platanthera leucostachys Joseph P. Tracy 1927-8-22 8342 Humboldt near High Prairie (Bald Mountain); Bald Mountain 1066 Comment
  CAS-BOT-BC91632  Platystemon californicus Alice Eastwood; John Thomas Howell 1937-6-22 4723 Humboldt Near Harris. Comment
  HSC59196  Platystemon californicus Terry Roth 1979-5-24 80 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  SEINET780340  Plectritis A. Baker 1980-5-24 1450 Humboldt Comment
  UC176997  Plectritis brachystemon Joseph P. Tracy 1912-6-9 3656 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC602532  Plectritis brachystemon Joseph P. Tracy 1936-7-5 15037 Humboldt North Coast Range, Grouse Mountain Grouse Mountain; North Coast Range, Grouse Mountain 1524 Comment
  HSC37515  Plectritis congesta A. M. Montalvo, J. D. Ackerman 1975-6-22 488 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  UC169035  Plectritis congesta Joseph P. Tracy 1908-6-8 2625 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC48728  Pleuricospora fimbriolata J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 524 Humboldt Off FS 10N05. SE slope of Hopkins Butte. Bulk Collection 186 1037 Comment
  HSC10613  Pleuropogon refractus R. D. Modaferri 1965-5-13 98 Humboldt 2.2 mi N of Trinidad on Trinity St. 274 Comment
  UC1145107  Pleuropogon refractus Joseph P. Tracy 1939-7-9 16334 Humboldt Snow Camp 1402 Comment
  CDA32631  Pleuropogon refractus E. C. Whitney 1971-5-28 Humboldt North of Orick 0 Comment
  HSC26347  Poa annua T. O. Osborne 1970-4-5 78 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  UCD90580  Poa bolanderi A. H. Murphy 1951-8-17 90 Humboldt near Cold Spring Lookout, South Fork Mtn., ca. 15 miles northeast of Bridgeville. Near Trinity County line. 1219 Comment
  UC1145111  Poa bulbosa Joseph P. Tracy 1942-6-2 17104 Humboldt Valley of S Yager Creek 762 Comment
  HSC73055  Poa compressa M. A. Baker 1980-7-23 3139 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC255117  Poa confinis Peter H. Raven 1963-5-15 18372 Humboldt Dunes above coast, Lanphere Ranch just W of Mad River Slough, near Arcata Comment
  UC1132657  Poa douglasii H. S. Yates 1936-6-18 5725 Humboldt near mouth Little River; Eureka Quadrangle Comment
  UC525627  Poa howellii Joseph P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC1026388  Poa kelloggii John Thomas Howell 1954-4-24 29151 Humboldt Bull Creek Flat Comment
  OBI22137  Poa macrantha Carl B. Wolf 1937-6-18 8904 Humboldt Centerville Beach Comment
  UCD91548  Poa macrantha Joseph P. Tracy 1947-7-3 17766 Humboldt at mouth of Little River. 6 Comment
  UCD90446  Poa secunda R. Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  SEINET11680993  Poa secunda J. P. Tracy 1951-1 19543 Humboldt 2 mi W of Snow Camp, at Beck's Place, Hydesville 1219 Comment
  HSC102627  Poa secunda subsp. secunda M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1612 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1103169  Poa secunda subsp. secunda Joseph P. Tracy 1921-4-24 5465 Humboldt facing S Fork of Eel River Phillipsville; Northern Coast Ranges 121 Comment
  UCD91738  Poa secunda subsp. secunda A. H. Murphy 1951-4-18 s.n. Humboldt Tooby and Prior Ranch, Blocksburg. 457 Comment
  UC187224  Poa trivialis J. P. Tracy 1909-6-13 2998 Humboldt 5 mi from its mouth Mad River 30 Comment
  UCD52731  Podagrostis humilis A. H. Murphy 1951-6-25 65 Humboldt Snow Camp Meadow, 8 miles e.n.e. Kneeland. 1402 Comment
  HSC17210  Polemonium carneum J. Wendell Howe 5 May [year missing] Humboldt Big Lagoon Comment
  HSC32032  Polycarpon tetraphyllum D. E. Anderson 1974-8-1 Humboldt 6th St. in Eureka Comment
  SDSU4396  Polygala californica D. F. Howe 1962-5-21 3292 Humboldt 16 miles north of Garberville on #101. 61 Comment
  UC1198991  Polygala cornuta var. cornuta Joseph P. Tracy 1926-7-18 7744 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC165802  Polygala cornuta var. cornuta Joseph P. Tracy 1911-7-8 3447 Humboldt hill slopes at w side Trinity River (near Willow Creek); Northern Coast Ranges 152 Comment
  HSC43173  Polygonum aviculare R. Sutherland 1976-8-13 10 .13876 Humboldt Redwood Creek, Whittemore Grove. 91 Comment
  HSC55221  Polygonum douglasii Walter Overton 1979-8-1 12393 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC76039  Polygonum douglasii Overton, Butler 1979-8-2 12577 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  CAS-BOT-BC414466  Polygonum douglasii Doris K. Kildale 1925-8-17 1231 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  HSC55101  Polygonum minimum G. L. Clifton 1979-7-31 11832 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC109185  Polygonum paronychia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  HSC103974  Polygonum paronychia C. Reynolds 2015-3-16 19 Humboldt Along Freshwater Beach, due south of the Kuchel Visitor Center 1 Comment
  HSC17511  Polygonum paronychia Jerry Parker 1968-11-22 245 Humboldt Mckinleyville Beach, Foot of Murray Rd. Comment
  HSC37919  Polygonum paronychia Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  POM129566  Polygonum paronychia Grout, S. Grout 1910-09 s.n. Humboldt Eureka. Comment
  HSC75436  Polygonum parryi J. O. Sawyer 1980-7-18 3592 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC72026  Polygonum persicaria Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  CDA2924  Polygonum polystachyum Thomas W. Nelson, M. Alcasas 1978-10-1 4555 Humboldt Highway 101 right-of-way just north of Humboldt State University exit. 0 Comment
  HSC79433  Polypodium californicum Kenneth Clark 1981-4-5 1229 Humboldt Dead Man's Gulch 69 Comment
  HSC26822  Polypodium scouleri Clifton Raymond Chesbrough 1973-6-19 69 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC95649  Polypodium scouleri Andrea Pickart 2002-4-5 40 Humboldt Lanphere Dunes 0 Comment
  SEINET181191 Image available Polypodium scouleri Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15047 Humboldt 20 miles north of Eureka Comment
  HSC79377  Polypogon interruptus Kenneth Clark 1980-5-10 645 Humboldt Shelter Cove, bluffs of Point Delgada. 5 Comment
  POM252888  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile NE of Samoa 3 Comment
  UC1145088  Polypogon maritimus Joseph P. Tracy 1939-8-5 16377 Humboldt opposite Buck Mountain (along Van Duzen River, Dinsmore's); along Van Duzen River, opposite Buck Mountain 762 Comment
  HSC79387  Polypogon monspeliensis Kenneth Clark 1979-7-1 459 Humboldt Shelter Cove. One beach at base of cliffs; first reef of Point Delgada headlands. 5 Comment
  UC1100381  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1176 Humboldt salt marshes around Fields Landing; around Fields Landing Comment
  UC1103196  Polypogon monspeliensis J. P. Tracy 1901-7-24 1217 Humboldt streets Eureka; immediate vicinity of Eureka 0 Comment
  UCD91265  Polypogon monspeliensis Harley P. Chandler 1901-6-1 1431 Humboldt North Coast Ranges. Klamath River. 335 Comment
  UCD91351  Polypogon monspeliensis Kathleen Moore 1964-7-14 12 Humboldt Kneeland at the Star Barn. 762 Comment
  HSC76326  Polystichum imbricans Denis Kearns 1981-7-21 296 Humboldt Near Whiteys Peak 1585 Comment
  RSA698536  Polystichum munitum J. R. Bruff 1937-8-17 922 Humboldt Richardson Grove. Comment
  CAS-BOT-BC102909  Populus trichocarpa Doris K. Kildale 1927-5-15 3155 Humboldt Petrolia, Mattole River Valley Comment
  UC1196668  Populus trichocarpa E. Ethel Tracy 1918-4-20 Humboldt Scotia Northern Coast Ranges, on Eel River (on Eel River) 30 Comment
  UC275528  Populus trichocarpa Joseph P. Tracy 1923-5-6 6197 Humboldt Blue Lake; Northern Coast Ranges, Blue Lake 30 Comment
  BLMAR668  Potamogeton nodosus Jennifer Wheeler 2012-10-10 668 Humboldt Lacks Creek, Beaver Ridge Pond 914 Comment
  JEPS42953  Potamogeton richardsonii E. G. Pluke 1926-8-1 Humboldt w of Dow's Prairie (at mouth of Widow White Creek); Widow White Creek 3 Comment
  CAS-BOT-BC143078  Potentilla anserina subsp. pacifica Carl B. Wolf 1927-8-22 792 Humboldt Big Lagoon Comment
  HSC96488  Potentilla anserina subsp. pacifica Gordon Leppig 1997-8-3 633 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 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
  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
  HSC18746  Potentilla gracilis J. P. Tracy 1934-6-18 13461 Humboldt Grouse Mtn. 1524 Comment
  HSC58327  Potentilla gracilis var. fastigiata Overton, Butler 1979-8-2 12625 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC158493  Potentilla gracilis var. gracilis Doris K. Kildale 1925-6-28 796 Humboldt Kneeland Prairie 762 Comment
  HSC74394  Prosartes hookeri Gail Newton 1980-6-28 712 Humboldt Near Mad River Butte. 1536 Comment
  HSC15463  Prosartes hookeri D. E. Anderson 1965-5-1 3576 Humboldt On Bluff Creek Rd. 4-5 mi. W of junction with Hwy. 96 Comment
  CAS-BOT-BC517504  Prosartes smithii H. C. Cantelow 1936-5-18 1342 Humboldt 3 miles E of Orick Comment
  HSC15481  Prosartes smithii K. P. St. John 1965-5-5 12 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  HSC39157  Prunella vulgaris subsp. lanceolata D. E. Anderson, J. P. Smith 1971-6-28 - 1266 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC99296  Prunella vulgaris subsp. lanceolata Jimerson, J. Pageau 1979-8-10 721 Humboldt Near Tish ATang Ridge, close to the town of Hoopa 1464 Comment
  CAS-BOT-BC159984  Prunus emarginata Doris Kildale Gillespie 1931-6-7 10593 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  CAS-BOT-BC159987  Prunus emarginata Doris K. Kildale 1927-7-22 3813 Humboldt Lassecks Peaks 1661 Comment
  HSC40670  Prunus emarginata Thomas W. Nelson, Jane P. Nelson 1976-7-1 2931 Humboldt Bench W of Lassic Park (Signal Peak) 1677 Comment
  HSC55996  Prunus emarginata Overton, Butler 1979-7-31 11433 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC902151  Prunus emarginata Joseph P. Tracy 1944-5-20 17473 Humboldt Eureka, on 2nd St. between K and L Sts Eureka 9 Comment
  SEINET11917572  Prunus virginiana J. P. Tracy 1950-6-25 18881 Humboldt Burr Valley Rd, Buck Mt 1067 Comment
  UC666842  Prunus virginiana var. demissa Joseph P. Tracy 1933-7-16 12796 Humboldt South Fork Mountain, W slope near top, at Hyampom Trail 1676 Comment
  CAS-BOT-BC80113  Pseudotsuga menziesii Joseph P. Tracy 1949-4-3 18278 Humboldt Trinidad 60 Comment
  CHSC19503  Pseudotsuga menziesii var. menziesii Wendell Wood 1970-9-22 295 Humboldt McKinleyville. East end of Chateau Way. 106 Comment
  HSC1582  Pseudotsuga menziesii var. menziesii W. R. Rogers 1965-7-1 300 Humboldt Hwy. 299 4 mi E of Blue Lake Comment
  HSC70805  Pseudotsuga menziesii var. menziesii Gail Newton 1980-7-24 1781 Humboldt Near Somes Mtn. 1615 Comment
  UCD170576  Pseudotsuga menziesii var. menziesii Gordon Leppig 1998-4-7 733 Humboldt Berry Summit on west slope, Rt. 299. 792 Comment
  RSA170252  Psilocarphus brevissimus Joseph P. Tracy, Francis W. Pennell 1940-7-7 16674 Humboldt Grouse Mountain. 1555 Comment
  UC1222911  Psilocarphus oregonus Joseph P. Tracy 1949-8-11 18479 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek); Kinsey Ridge 1402 Comment
  CAS-BOT-BC361930  Psilocarphus tenellus M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale on road to Garberville Comment
  CAS-BOT-BC460504  Pterospora andromedea Doris Kildale Gillespie 1931-6-7 10662 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UC577353  Pycnanthemum californicum Joseph P. Tracy 1926-10-7 7809 Humboldt w side South Fork of Trinity River opposite Limestairs; South Fork of Trinity River Comment
  CAS-BOT-BC460603  Pyrola aphylla Doris K. Kildale 1926-6-17 2166 Humboldt Kneeland Prairie 762 Comment
  HSC83331  Pyrola aphylla Ron Glick 1987-6-21 Humboldt Comment
  CAS-BOT-BC462871  Pyrola asarifolia Joseph P. Tracy 1936-6-28 15016 Humboldt Bald Mountain, at Lake Prairie 1066 Comment
  HSC54232  Pyrola picta Griswold, Butler 1979-7-12 7313 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 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
  BLMAR160  Quercus chrysolepis Donald Hazlett 1994-6-7 160 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC41342  Quercus chrysolepis Brad Klipfel 1974-8-2 504 Humboldt Horse Mtn. Comment
  HSC54647  Quercus chrysolepis Overton, Butler 1979-7-25 9847 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC1196532  Quercus chrysolepis Joseph P. Tracy 1916-9-5 4775 Humboldt 4 mi above Mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  SEINET10970825  Quercus chrysolepis Jones 1985-6-6 Jones 112 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, querus Chrysolepis, quercus vaccinifolia habitat 1143 Comment
  SEINET13953254 Image available Quercus chrysolepis R. Earing, C. Cavanaugh, C. Collins 1987-1 109 Humboldt Grays Falls campground approximately 10 miles E. of Willow Creek on highway 299 along the trinity river. Comment
  CAS-BOT-BC94312  Quercus garryana Doris K. Kildale 1926-8-31 2603 Humboldt Union Mattola, Geo. Miner Ranch Comment
  UC54687  Quercus garryana Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  HSC8258  Quercus kelloggii R. E. Thill 1965-5-15 30 Humboldt 3 mi W of Berry Summit on Hwy. 299 Comment
  HSC8259  Quercus kelloggii D. E. Anderson 1961-9-30 1835 Humboldt Comment
  HSC8263  Quercus kelloggii Francis Winter 1960-4-24 Humboldt 1.0 mi. N of Redwood Creek Ranch 396 Comment
  JEPS38041  Quercus kelloggii Lincoln Constance 1934-5-29 738 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  HSC54519  Quercus vacciniifolia Overton, Butler 1979-7-23 9446 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  UC2016503  Quercus vacciniifolia A. R. Kruckeberg 1965-9-11 5867 Humboldt On broad flat summit just s. of Horse Mtn., ca. 7 mi. s. of Hiway 299. Comment
  CAS-BOT-BC186672  Ranunculus Mrs. H. C. Cantelow 1935-5-31 828 Humboldt 8 mi. nor. of Orick Comment
  JEPS5915  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1937-5-30 15311 Humboldt in shallow pond near Bosworth's; Larrabee Creek 365 Comment
  NY353451  Ranunculus aquatilis var. hispidulus V. K. Chesnut 1888-7-10 s.n. Humboldt In stagnant ponds at Jarnigan's, on Mad River Comment
  UC552284  Ranunculus flammula Joseph P. Tracy 1934-7-30 13499 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  JEPS55018  Ranunculus flammula Milo S. Baker 1923-7-15 9 Humboldt near Hayes and M. Streets; Eureka swamps Comment
  BLMAR362  Ranunculus muricatus Clara Sander 2003-5-21 362 Humboldt South Spit, West side of road 9 Comment
  UC1368470  Ranunculus occidentalis R. K. Gierisch and D. H. Esplin 1969-7-1 3529 Humboldt Grouse Mtn. Six Rivers National Forest Comment
  UC249650  Ranunculus occidentalis Joseph P. Tracy 1922-4-30 5988 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC486518  Ranunculus occidentalis Parks and Tracy 1930-5-25 859 Humboldt Laribee Valley; along small stream, eastern Humboldt Co. Comment
  HSC97644  Ranunculus occidentalis var. occidentalis C. Witte 2007-5-8 12 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  HSC40619  Ranunculus occidentalis var. occidentalis J. P. Smith, Steve Selva 1970-6-30 4141 Humboldt Comment
  HSC98685  Ranunculus occidentalis var. occidentalis Cara Witte 2008-6-7 685 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  POM269707  Ranunculus orthorhynchus var. platyphyllus W. R. Dudley 1899-1 s.n. Humboldt Arcata Comment
  UC1116207  Ranunculus pusillus Joseph P. Tracy 1942-5-16 17356 Humboldt Garberville 304 Comment
  SBBG2270  Ranunculus repens H. and M. Dearing 1939-5-26 3445 c Humboldt near Arcata Comment
  CDA3483  Ranunculus repens T. C. Fuller 1966-5-24 14709 Humboldt Arcata Bottoms, 0.75 mile west of Highway 101, 2 miles north of Arcata. 0 Comment
  HSC18176  Ranunculus repens var. repens Francis Winter 1960-4-19 Humboldt Samoa Peninsula, 4.5 mi. W of Arcata Comment
  HSC36258  Ranunculus repens var. repens John Rehling 1974-8-19 18 Humboldt Comment
  RSA670129  Ranunculus sardous J. M. DiTomaso 2000-8-12 s.n. Humboldt Arcata bottoms along Seidel Road Comment
  UC1196272  Ranunculus uncinatus J. P. Tracy 1901-5-5 1065 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA34322  Rhamnus californica Doris K. Kildale 1926-8-15 2511 Humboldt Willow Creek Flat Comment
  RSA601956  Rhamnus californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter cove. 61 Comment
  UC592943  Rhamnus californica subsp. californica Carl B. Wolf 1931-8-31 Humboldt near Mouth of South Fork of Trinity River (on road to Sandy Bar Swimming Hole) 243 Comment
  JEPS41952  Rhamnus purshiana W. L. Jepson 1902-7-15 2032 Humboldt Mud Spring to Trinity Summit 1219 Comment
  POM12395  Rhamnus purshiana P. E. Goddard 1906-1 655 Humboldt Blockburg Comment
  UC1197996  Rhamnus purshiana Mary Harriet Tracy 1946-5-30 Humboldt 5 mi e Carlotta; Van Duzen River, Riverside Park 30 Comment
  UC198576  Rhamnus purshiana Joseph P. Tracy 1917-9-2 4847 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  RSA2944  Rhododendron macrophyllum C. B. Wolf 1931-8-29 2370 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  HSC100478  Rhododendron occidentale Carl C. Marshall Apr 1886 186 Humboldt Vicinity of Humboldt Bay. Comment
  UC162760  Rhododendron occidentale Joseph P. Tracy 1911-7-6 3340 Humboldt between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC604616  Rhododendron occidentale Joseph P. Tracy 1938-6-16 15945 Humboldt Trinidad 60 Comment
  CAS-BOT-BC200389  Rhododendron occidentale var. paludosum E. A. McGregor 1921-8-17 s.n. Humboldt On old grade, S.E. of Orick Comment
  CAS-BOT-BC433142  Ribes Doris K. Kildale 1927-5-13 3136 Humboldt Redwood Creek at Berry's 289 Comment
  HSC40801  Ribes binominatum Thomas W. Nelson 1976-7-9 2972 Humboldt W side of Red Lassic 1707 Comment
  POM184793  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt Trinity Summit. 1524 Comment
  UC492207  Ribes lacustre Joseph P. Tracy Jul 16 1930-Jul 19 1930 9078 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC173365  Ribes lobbii J. H. Thomas 1949-6-13 912 Humboldt Along trail between Le Perron Flat and Whitey's Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  HSC20318  Ribes menziesii Larry Berti 1968-10-10 Humboldt Comment
  SBBG72058  Ribes menziesii H. E. Parks -Apr-1933 4402 Humboldt McNeils Crk, vicinity of Trinidad Comment
  HSC20310  Ribes menziesii F. S. Griffith 1965-3-20 104 Humboldt 1.0 mi. E of Hwy. 101 along Mad River Rd. Comment
  HSC74339  Ribes roezlii M. A. Baker 1980-5-18 1290 Humboldt Near Black Mtn. 1006 Comment
  BLMAR117  Ribes roezlii var. amictum Jennifer Anthony-Wheeler 1995-3-15 117 Humboldt King range, growing at far N end of Honeydew campground-open grassy floodplain 115 Comment
  CAS-BOT-BC198898  Ribes roezlii var. cruentum Joseph P. Tracy 1934-3-11 13153 Humboldt French Camp Ridge 1066 Comment
  HSC20279  Ribes roezlii var. cruentum B. R. Templeton 1962-5-24 Humboldt 18 mi. W of Willow Creek, N of Hwy. 299 Comment
  HSC55321  Ribes roezlii var. cruentum Griswold, Butler 1979-7-10 7119 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  UC1198938  Ribes roezlii var. cruentum Joseph P. Tracy 1942-4-4 17068 Humboldt Trinity Highway Berry Mt. 670 Comment
  CAS-BOT-BC212523  Ribes sanguineum L. R. Abrams; R. C. Bacigalupi 1922-6-25 8293 Humboldt Bluffs north of Big Lagoon Comment
  HSC53832  Ribes sanguineum Griswold, Butler 1979-7-10 6280 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC71794  Ribes sanguineum Gail Newton 1980-6-16 174 Humboldt Near Monks Camp. 1097 Comment
  UC902055  Ribes sanguineum Joseph P. Tracy 1948-8-15 18133 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1554 Comment
  CAS-BOT-BC144688  Ribes sanguineum var. glutinosum Joseph Andorfer Ewan 1937-7-1 10444 Humboldt on river bench. Stephan Grove on Eel River, n. of Garberville 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
  HSC90232  Ribes sanguineum var. glutinosum L. Watson, J. Meninga Mar 1991 9 Humboldt Near Manilla, Mad River Slough and Dunes, 300yds W of parking lot, W of trail Comment
  UC492210  Ribes sanguineum var. glutinosum Joseph P. Tracy 1932-8-27 10759 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  SEINET2153800  Ribes sanguineum var. sanguineum K. T. Harper 2002-1 2002 -4 Humboldt Redwood Park, near Orick. Comment
  HSC32267  Ribes viscosissimum J. O. Sawyer 1970-6-24 2276 Humboldt W of Mill Creek Lakes. 1677 Comment
  UC1222365  Romanzoffia californica Joseph P. Tracy 1950-6-15 18818 Humboldt at Huestis Rock on n.e. side Mail Ridge Comment
  UC1239757  Romanzoffia californica Joseph P. Tracy 1935-5-12 13799 Humboldt along Trinity Hwy. Willow Creek Canyon 304 Comment
  UC144104  Romanzoffia californica Joseph P. Tracy 1909-5-16 2970 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  JEPS53873  Rorippa curvisiliqua Lincoln Constance 1934-5-27 691 Humboldt gravel bar of South Fork Eel River s end Dyerville Bridge; Bull Creek Region, South Fork Eel River 45 Comment
  CAS-BOT-BC147435  Rosa californica Doris K. Kildale; L. B. Kildale 1930-5-24 9545 Humboldt Hoopa Valley 152 Comment
  HSC49683  Rosa canina J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Along Big Hill Rd. (8N01) at Mud Spring. Comment
  HSC32946  Rosa gymnocarpa Thomas W. Nelson, James Nelson 1973-5-28 957 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC19634  Rosa nutkana C. G. Young 1967-7-29 8 Humboldt Eureka City Golf Course, SE side Comment
  SBBG3090  Rosa nutkana M. J. Cody 1938-7-14 Humboldt 2 mi N of Trinidad Comment
  UC1199026  Rosa nutkana var. nutkana Joseph P. Tracy 1927-7-4 8230 Humboldt Sibley Ranch Iaqua 609 Comment
  UC14149  Rosa nutkana var. nutkana E. Ethel Tracy 1901-9-5 1278 Humboldt Eureka Comment
  UC183613  Rosa nutkana var. nutkana Joseph P. Tracy 1912-10-20 4000 Humboldt Alton Northern Coast Region 30 Comment
  UC303027  Rosa nutkana var. nutkana Joseph P. Tracy 1923-10-28 6591 Humboldt Angels Ranch North Coast Ranges, Bald Mt. 457 Comment
  UC667040  Rosa pisocarpa subsp. pisocarpa Joseph P. Tracy 1940-7-14 16691 Humboldt on river bank Garberville 152 Comment
  UCD17685  Rubus H. Olmo; T. S. Mallah 1953-4-3 53 58 Humboldt California. Humboldt County: 300 yards west of junction of State 1 and Redwood Highway, across from Justice Court of Long Valley. Comment
  JEPS47690  Rubus leucodermis Lincoln Constance 1934-5-24 635 Humboldt bordering lower Look Prairie on e side , Bull Creek Region (South Fork Eel River) 121 Comment
  RSA89563  Rubus leucodermis Philip A. Munz 1954-7-23 19862 Humboldt About 6 miles E of Dinsmore's. 762 Comment
  LA37949  Rubus parviflorus Doris K. Gillespie; 1938-8-8 15398 Humboldt Elk River, 6 mi. S. of Eureka Comment
Read comments
May 4 2014
  CAS-BOT-BC156726  Rubus spectabilis W. C. Blasdale 1896-5-31 s.n. Humboldt Eureka Comment
  CHSC59811  Rubus spectabilis Jordan Detzer 1977-4-8 6 Humboldt South end of Patrick's Point State Park, ca 0.2 mi west of Hwy 101 and 5 mi north of Trinidad. 60 Comment
  JEPS46230  Rubus spectabilis W. L. Jepson 1934-5-7 16708 Humboldt near Big Tree footbridge (Bull Creek); Bull Creek Comment
  CAS-BOT-BC158792  Rubus ursinus Joseph P. Tracy 1946-8-25 17637 Humboldt Field's Landing, 2 miles above town. 6 Comment
  UC667050  Rubus ursinus Joseph P. Tracy 1939-4-16 16209 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  UC999203  Rubus ursinus H. E. Parks March 1941 Humboldt Spruce Cove , Spruce Cove (Trinidad) Comment
  UCD17612  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 053 Humboldt California. Humboldt County: 6 miles from Dyerville junction of U.S. 101, on road to Weitchpec. Comment
  UCD17837  Rubus ursinus H. Olmo 8-10 May 1962 62- 39 Humboldt California. Humboldt County: 0.5 miles west of Dinsmore. Comment
  UCD17848  Rubus ursinus H. Olmo 8-10 May 1962 62 36 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  CAS-BOT-BC421936  Rumex acetosella Doris K. Kildale 1925-8-17 1239 Humboldt Trinity Summit - near Waterdog Lake. 1828 Comment
  HSC32426  Rumex acetosella Linda M. Barker 1974-5-11 171 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC39614  Rumex acetosella Thomas W. Nelson, Jane P. Nelson 1976-6-15 2718 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC48031  Rumex acetosella Brad Klipfel 1974-5-27 404 Humboldt Horse Mtn. Comment
  HSC98701  Rumex acetosella subsp. acetosella Cara Witte 2007-5-21 69 Humboldt White Oak Opening. 1257 Comment
  HSC102639  Rumex californicus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1623 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC421749  Rumex conglomeratus Malcom A. Nobs; S. Galen Smith 1949-8-9 1236 Humboldt On southern side of the town of Blue Lake Comment
  JEPS39930  Rumex maritimus W. L. Jepson 1921-8-7 9329 Humboldt Stone Lagoon Humboldt Coast Comment
  RSA249520  Ruppia maritima Robert F. Thorne, Percy C. Everett 1965-8-9 35340 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  RSA91846  Rytidosperma penicillatum F. W. Peirson 1941-7-28 13113 Humboldt at Patrick's Point State Park Comment
  UC161047  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-5-2 2181 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  POM161039  Sagina procumbens Joseph P. Tracy 1920-6-6 5338 Humboldt Freshwater Creek near Wrangletown. 30 Comment
  OBI36622  Salicornia pacifica David J. Keil 1983-7-2 17297 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  JEPS12969  Salix exigua Joseph P. Tracy 1931-9-19 9673 Humboldt Alton; Northern Coast Region, Van Duzen River 30 Comment
  UC490573  Salix exigua Joseph P. Tracy 1932-7-31 10295 Humboldt mouth of Larrabee Creek Eel R.; Northern Coast Ranges 60 Comment
  SBBG58915  Salix exigua var. hindsiana H. E. Parks 1931-5-14 958 Humboldt Fernbridge, Eel River 10 Comment
  CAS-BOT-BC104114  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01248 Humboldt floodplain of Eel River at Fernbridge Comment
  CAS-BOT-BC104117  Salix hindsiana Doris K. Kildale 1926-9-19 2804 Humboldt Fort Seward 98 Comment
  CAS-BOT-BC106860  Salix hookeriana W. J. Ferlatte 1967-6-13 1118 Humboldt Clam Beach Lagoon 6 Comment
  CAS-BOT-BC107676  Salix hookeriana John Johnson 1962-4-1 1187 Humboldt Lamphere Ranch, about 4 miles west of Arcata. Sand dune formation along beach Comment
  CAS-BOT-BC107724  Salix hookeriana Alice Eastwood 1923-8-14 12321 Humboldt Samoa Comment
  CAS-BOT-BC107727  Salix hookeriana Harold E. Parks 1931-3-24 915 a Humboldt Trinidad 90 Comment
  CAS-BOT-BC107736  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107759  Salix hookeriana Harold E. Parks 1931-5-28 01000 Humboldt Little River Lagoon Comment
  HSC20071  Salix hookeriana J. P. Tracy, H. E. Parks 1931-3-26 904 Humboldt Lower Van Duzen River near Alton Comment
  HSC40861  Salix hookeriana Linda M. Barker 1976-4-13 1382 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  JEPS12965  Salix hookeriana Joseph P. Tracy 1931-8-23 9617 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  JEPS13089  Salix hookeriana Joseph P. Tracy 1936-10-24 15203 Humboldt Fortuna; bank of Eel River 15 Comment
  JEPS13090  Salix hookeriana Joseph P. Tracy 1936-10-24 15202 Humboldt Fortuna 15 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
  LA208754  Salix hookeriana Harold E. Parks; 1931-5-28 1000 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  SBBG27479  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC1196673  Salix hookeriana Joseph P. Tracy 1925-11-15 7315 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay (same region as #6929) 60 Comment
  UC146208  Salix hookeriana J. P. Tracy 1904-4-3 2011 Humboldt Immediate vicinity of Eureka 0 Comment
  UC470420  Salix hookeriana Joseph P. Tracy 1931-10-3 9709 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC490465  Salix hookeriana Joseph P. Tracy 1932-9-10 10767 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC504053  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 5 Humboldt around Eureka Comment
  UCD111034  Salix hookeriana Linda M. Barker 1976-4-13 1380 Humboldt 3 miles west of Arcata. Comment
  JEPS14791  Salix jepsonii Joseph P. Tracy 1933-7-16 12773 Humboldt meadow at McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  UC481812  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 271 Humboldt between Miranda and Meyers (Sylvandale); S. Fork Eel R., Sylvandale Comment
  UC492482  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1932-5-12 1150 Humboldt swamp near bridge at mouth of Maple Creek (Big Lagoon); Big Lagoon Comment
  CAS-BOT-BC125228  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
  SD1004  Salix lasiandra var. lasiandra Harold E. Parks, Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  UCD111531  Salix lasiandra var. lasiandra Linda M. Barker 1976-9-3 1690 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC107585  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-12 1244 Humboldt Floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107614  Salix lasiolepis Harold E. Parks 1933-2-26 10912 Humboldt Miranda, south fork of Eel River 121 Comment
  CAS-BOT-BC107617  Salix lasiolepis Harold E. Parks 1931-9-26 9696 Humboldt Redwood Creek, at Berry's 274 Comment
  CHSC96698  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC20003  Salix lasiolepis J. P. Tracy 1933-4-9 10969 Humboldt Blue Slide, Van Duzen River 91 Comment
  LA208776  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11006 Humboldt Van Duzen River, 2 mi. W of Bridgeville 228 Comment
  UC469415  Salix lasiolepis Joseph P. Tracy 1927-5-13 7996 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469431  Salix lasiolepis Joseph P. Tracy 1931-9-27 9690 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel River 15 Comment
  UC504027  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1320 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506375  Salix lasiolepis Joseph P. Tracy 1933-4-9 10963 Humboldt Bridgeville 228 Comment
  UC506385  Salix lasiolepis Joseph P. Tracy 1932-6-4 10130 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC512029  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1329 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  UC512041  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1322 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC519329  Salix lasiolepis Joseph P. Tracy 1933-5-14 12181 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UCD111583  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-13 01254 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road. Comment
  CAS-BOT-BC107418  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-4-1 1701 Humboldt [Dobbyns] Dobbyn Creek Comment
  POM219560  Salix lucida subsp. lasiandra H. E. Parks 1931-3-24 911 Humboldt Fortuna. Eel River. 10 Comment
  POM362660  Salix lucida subsp. lasiandra H. E. Parks, Susan T. Parks 1932-5-12 1150 Humboldt Near bridge at mouth of Maple Creek. Big Lagoon. Comment
  RSA273414  Salix lucida subsp. lasiandra Thomas W. Nelson 1976-3-22 2278 Humboldt Along S side of the Eureka Muni Golf Course. Comment
  CAS-BOT-BC125610  Salix melanopsis Doris K. Kildale 1927-5-13 3143 Humboldt Redwood Creek at Berry's 289 Comment
  HSC20032  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy., 6 km S of Alton 20 Comment
  JEPS12970  Salix melanopsis Joseph P. Tracy 1931-9-19 9682 Humboldt Van Duzen River Alton; Northern Coast Region 30 Comment
  UC1196569  Salix melanopsis Joseph P. Tracy 1932-5-1 9851 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 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
  UC481342  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC481827  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC490561  Salix melanopsis Joseph P. Tracy 1932-5-1 9876 Humboldt vicinity of R. Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC519365  Salix melanopsis Joseph P. Tracy 1933-6-11 12550 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  CAS-BOT-BC129208  Salix piperi Doris K. Kildale 1928-3-27 4359 Humboldt Freshwater Comment
  HSC20091  Salix scouleriana H. E. Parks Feb 1933 1151 Humboldt Spruce Cove, Trinidad Comment
  JEPS38417  Salix scouleriana W. L. Jepson 1932-8-1 16466 Humboldt Bull Creek 121 Comment
  UC1196697  Salix scouleriana Joseph P. Tracy 1923-1-7 6135 Humboldt near Ferndale Ferndale; Northern Coast Ranges 15 Comment
  UC525974  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  CAS-BOT-BC128990  Salix sitchensis Doris K. Kildale 1926-3-28 1690 Humboldt Redmond Creek near Berry's 289 Comment
  CAS-BOT-BC128997  Salix sitchensis Harold E. Parks 1931-3-25 903 a Humboldt Orick, Van Duzen River 6 Comment
  HSC90381  Salix sitchensis Jean Hanson 1980-3-8 11 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  SBBG57993  Salix sitchensis H. E. Parks 1931-3-25 903 Humboldt Orick, Van Duzen River [probably Redwood Creek] 6 Comment
  UC490501  Salix sitchensis Joseph P. Tracy 1932-10-2 10857 Humboldt Redwood Creek near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UCSB26078  Salix sitchensis Crovello, Theodore 1964-6-24 Humboldt Along Lost Man Creek 100 yards west of junction with U.S. 101 j 2.5 miles south of turnoff from U.S. 101 for Prairie Creek Redwoods State Park Comment
  HSC3972  Sambucus racemosa var. racemosa S. R. Johnson 1965-3-28 32 Humboldt 2 mi. N of Luffenholtz Beach. Comment
  UC154105  Sanicula arctopoides J. P. Tracy 1901-4-14 1018 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  UC1197114  Sanicula arctopoides Joseph P. Tracy 1918-4-7 4860 Humboldt mouth of Strawberry Creek, Dow's Prairie, Northern Coast Ranges Strawberry Creek; Northern Coast Ranges, , Dow's Prairie 6 Comment
  HSC71058  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1977-5-30 3392 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  CHSC35577  Sanicula crassicaulis Jacqueline Greenleaf 1980-5-23 87 Humboldt Near Dinsmores. 430 Comment
  UC1222746  Sanicula crassicaulis Joseph P. Tracy 1950-7-6 19023 Humboldt 3 mi s of Burr Valley (Sproston's Place); Sproston's Place 1066 Comment
  HSC38885  Sanicula graveolens J. O. Sawyer 1970-6-25 2297 Humboldt 1646 Comment
  HSC68638  Sanicula tracyi Jacqueline Greenleaf 1980-5-25 86 Humboldt Near Dinsmores. 735 Comment
  JEPS98672  Sanicula tracyi M. Garcia, O. Gomez, C. Martin and P. Vargas 1996-5-25 32 -96 Humboldt Dismore, ca. 3 mi on Buck Mountain road from the junction with the main road Comment
  UC153999  Satureja douglasii J. P. Tracy 1905-6-25 2201 Humboldt immediate vicinity Eureka 0 Comment
  UC416709  Satureja douglasii Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  POM141795  Saxifraga mertensiana Joseph P. Tracy 1911-6-4 3217 Humboldt Along Little River. 5 miles from the coast. 122 Comment
  JEPS47545  Saxifraga oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Trinity Summit, at Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  HSC70985  Saxifragopsis fragarioides Gail Newton 1980-7-22 1657 Humboldt Near Devils Backbone 1554 Comment
  CAS-BOT-BC111696  Schoenoplectus pungens var. badius D. E. Breedlove 1962-6-7 3053 Humboldt On extensive sand dunes 1.5 mi S of Samoa on peninsula on W side of Humboldt Bay. Comment
  UCD60367  Schoenoplectus pungens var. badius Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  CAS-BOT-BC111704  Schoenoplectus pungens var. badius Doris K. Kildale 1927-6-25 3550 Humboldt Shelter Cove, coastal Comment
  CAS-BOT-BC111700  Schoenoplectus pungens var. longispicatus D. E. Breedlove 1962-6-7 3053 Humboldt On extensive sand dunes 1.5 mi S of Samoa on peninsula on W side of Humboldt Bay. Comment
  SEINET12050497  Scoliopus bigelovii F. H. Utech 1988-1 88 -281 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, mile marker 42.00, above Van Duzen River 800 Comment
  RSA425152  Scrophularia californica Bonnie C. Templeton 1964-6-13 10088 Humboldt Trinidad Head, near Lighthouse Point. Comment
  SDSU11019  Scrophularia californica Harvey 1938-8-13 2246 Humboldt Humbolt State Redwood Park. Comment
  HSC97100  Scutellaria antirrhinoides Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1364 Comment
  HSC40873  Scutellaria californica Thomas W. Nelson 1976-7-9 3010 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  UC249516  Scutellaria tuberosa Joseph P. Tracy 1922-4-30 6005 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC100511  Scutellaria tuberosa Carl C. Marshall Jun 1887 470 Humboldt Near Garberville. Comment
  HSC66822  Sedum laxum subsp. flavidum M. A. Baker 1980-7-11 2769 Humboldt Near Red Mtn. 1341 Comment
  HSC79269  Sedum laxum subsp. flavidum D. K. Imper 1983-7-13 Humboldt Six Rivers National Forest, Bennett Peak Comment
  HSC59362  Sedum laxum subsp. heckneri M. A. Baker 1978-7-9 623 Humboldt Confluence of the Trinity River and Tish Tang A Tang Creek Comment
  UC1198838  Sedum laxum subsp. heckneri Joseph P. Tracy 1947-7-9 17865 Humboldt Horse Mountain Horse Mountain (on barren ledge of rock) 1432 Comment
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Aug 17 2011
  HSC56994  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-24 9564 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC53871  Sedum radiatum Griswold, Butler 1979-7-10 6351 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  SEINET4076756  Sedum radiatum O. M. Clark 1932-1 1295 Humboldt South Eureka. Comment
  UC302107  Sedum radiatum Joseph P. Tracy 1926-7-5 7726 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley South Yager Creek 762 Comment
  JEPS73714  Sedum spathulifolium L. R. Heckard with T. I. Chuang 1968-7-5 1988 Humboldt along Mail Ridge Road 4 1/2 mi n of its junction with the Harris Road (e of Garberville); e of Garberville Comment
  JEPS28948  Sedum spathulifolium P. C. Hutchison 1961-5-22 2029 Humboldt ca 5.4 mi n Orleans (e side Klamath River, high bluff along road); e side Klamath River, n of Orleans Comment
  JEPS48059  Sedum spathulifolium Lincoln Constance 1934-6-1 767 Humboldt Bull Cr. Road between Dyerville Bridge and Bull Cr. flat grove (mouth Bull Cr.) (Mouth Bull Cr, South Fork Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  HSC65325  Sedum spathulifolium var. spathulifolium J. P. Smith 1973-5-26 6826 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  JEPS19067  Selaginella oregana Joseph P. Tracy 1933-11-26 13124 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  CDA42469  Selaginella wallacei L. P. Janeway & B. Castro 1996-8-4 5061 Humboldt High North Coast Ranges; Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain Comment
  UC1223022  Senecio glomeratus Joseph P. Tracy 1950-9-10 19360 Humboldt 1 mi n Capetown; Bear River Ridge 304 Comment
  SBBG62728  Senecio hydrophilus R. Hartwell 1938-8-6 113 Humboldt near Eureka Comment
  HSC34961  Senecio integerrimus var. major Thomas W. Nelson 1975-5-24 1873 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC56367  Senecio integerrimus var. major Griswold, Butler 1979-7-10 6252 Humboldt Near Board Camp Mountain, close to the town of Willow Creek 1494 Comment
  HSC82111  Senecio integerrimus var. major Thomas W. Nelson, Jane P. Nelson 1980-5-25 5250 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC100446  Senecio mendocinensis Carl C. Marshall Jul 1887 433 Humboldt Spruce Grove. Comment
  JEPS37460  Senecio minimus W. L. Jepson 1932-7-24 16379 Humboldt near Camp Grant; Eel River Comment
  JEPS37087  Senecio sylvaticus Lincoln Constance 1934-6-2 790 Humboldt Bull Cr. road to mouth of Bull Creek (and up the creek); South Fork Eel River, Bull Creek Region Comment
  HSC58343  Senecio triangularis Overton, Butler 1979-8-2 12670 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC85843  Sequoia sempervirens Joseph P. Tracy 1925-3-15 6945 Humboldt Blue Slide on Van Duzen River 91 Comment
  HSC49960  Sequoia sempervirens Maralyn O'Meara 1973-2-9 121 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  JEPS48280  Sequoia sempervirens Mrs. Fay Howard 1929-10-5 Humboldt about 1 mi n Pepperwood (down the river) Comment
  SEINET3876316 Image available Sequoia sempervirens Jack D. Brotherson 1982-7-14 3314 Humboldt Ca 25 miles north of Arcata along U.S. Hwy 101.; 0 Comment
  UC64433  Sequoia sempervirens H. M. Hall 1899-10-1 Humboldt Eel River Comment
  SEINET10612372  Sequoia sempervirens Joseph P. Tracy 1940-10-17 Tracy 16770 Humboldt Dyerville 49 Comment
  HSC104122  Sericocarpus oregonensis Julie Kierstead Nelson, Len Lindstrand III 2010-9-20 2010035 Humboldt Comment
  SEINET11802379  Sericocarpus rigidus J. P. Tracy 1950-1 19378 Humboldt about 3 mi SW of Orleans Comment
  POM203228  Sherardia arvensis M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  UC108862  Sidalcea asprella J. W. Blankinship 1893-6-15 Humboldt Bridgeville 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
  HSC16013  Sidalcea malachroides E. W. Styskel 1963-5-16 29 Humboldt 3 mi. SE of Korbel, Snow Camp Rd. 290 Comment
  HSC42305  Sidalcea malachroides Tom Duebendorfer 1977-5-15 48 Humboldt 0.52 mi. after junction of Snow Creek Rd. and Maple Creek Rd. along Maple Creek Rd. 518 Comment
  HSC96275  Sidalcea malachroides Gordon Leppig 2002-5-22 1710 Humboldt Van Duzen River Watershed, Redwood House Rd. Simpson Timber Co. 540 Comment
  POM61723  Sidalcea malachroides Jos. Burtt Davy, Walter C. Blasdale 1899-6-13 5482 Humboldt Camp Grant Comment
  HSC38096  Sidalcea malviflora subsp. nana Thomas W. Nelson, James Nelson 1976-5-30 2617 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC61193  Sidalcea malviflora subsp. nana Jimerson, J. Pageau 1979-5-24 473 Humboldt Near Orleans 226 Comment
  HSC81675  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1980-7-13 6057 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  HSC98003  Sidalcea malviflora subsp. nana Cara Witte 2007-7-25 582 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1270 Comment
  HSC93949  Sidalcea malviflora subsp. patula D. K. Imper, Clare Golec 1999-6-2 Humboldt Junction of Riverside Rd. and Hwy. 36 91 Comment
  RSA144570  Sidalcea malviflora subsp. patula Peter H. Raven, R. Snow 1958-7-20 s.n. Humboldt 2 miles south of jct. of Friday Ridge Road on Titlow Hill Road, near Grouse Mountain Comment
  HSC104343  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 3 Humboldt McKinleyville; Dow's Prairie, near Arcata Airport 61 Comment
  SEINET6947342  Sidalcea malviflora subsp. patula W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  UC668143  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-8-22 15671 Humboldt 2 mi s Fields Landing (at Still Ranch); s of Fields Landing, at Still Ranch 6 Comment
  UC1197970  Sidalcea oregana subsp. spicata Joseph P. Tracy 1935-7-27 14275 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC45617  Silene Diane L. Reed 1978-5-7 45 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  CDA38659  Silene californica B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -C Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 Comment
  CDA24094  Silene californica R. Spadoni 1992-6-15 Humboldt Along mad River east of Arcata, near Blue Lake, Redwood Valley. 0 Comment
  RSA78056  Silene californica P. A. Munz 1952-3-27 17800 Humboldt Boise Creek Public Camp west of Willow Creek. 366 Comment
  UC419028  Silene californica H. E. Parks May 1930 751 Humboldt vicinity Hydesville; vicinity of Hydesville Comment
  HSC56939  Silene campanulata Overton, Butler 1979-7-23 9418 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  CAS-BOT-BC174878  Silene campanulata subsp. glandulosa Carl B. Wolf 1927-8-27 1155 Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  HSC98675  Silene campanulata subsp. glandulosa Cara Witte 2007-6-26 353 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1388 Comment
  UC668091  Silene gallica Joseph P. Tracy 1931-5-3 9351 Humboldt near Blue Lake; along Mad River, near Blue Lake 15 Comment
  HSC4187  Silene gallica R. J. Vernimen 1963-3-21 23 Humboldt Clam Beach Lagoons, 10 mi. N of Arctata Comment
  HSC4188  Silene gallica J. E. Lankila 1962-5-14 23 Humboldt W bank of river at Fernbridge Comment
  HSC48611  Silene gallica Mark Flippo 1978-5-18 62 Humboldt Hwy. 101 N jct. with Giuntoli Lane Comment
  UC1137896  Silene hookeri H. S. Yates 1936-6-17 5719 Humboldt Burr Valley South Fork Peak Quad. Comment
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Aug 11 2014
  CAS-BOT-BC181231  Silene hookeri subsp. bolanderi L. R. Abrams 1918-6-15 7114 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  HSC41324  Silene laciniata subsp. californica Brad Klipfel 1974-8-2 517 Humboldt Horse Mtn. Comment
  HSC57102  Silene laciniata subsp. californica Overton, Butler 1979-7-25 9834 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC1198791  Sisymbrium altissimum Joseph P. Tracy 1929-8-18 8660 Humboldt on Van Duzen River, Dinsmore's Ranch, opposite Buck Mountain Van Duzen River; Northern Coast Ranges, , Dinsmore's Ranch 670 Comment
  UC1196380  Sisyrinchium bellum Joseph P. Tracy 1931-6-7 9572 Humboldt 2 mi n Trinidad 60 Comment
  POM299501  Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge 33 Comment
  SEINET4171044  Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt Hillside, 3 miles north and 1 mile west of Fernbridge 33 Comment
  UC13803  Smilax californica Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  UCD126873  Solanum aviculare Robert F. Thorne; P. Everett 1965-8-5 35160 Humboldt Samoa Dunes, at edge of Humboldt Bay. 3 Comment
  HSC38086  Solanum parishii Thomas W. Nelson, James Nelson 1976-5-30 2607 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC154277  Solanum umbelliferum Mrs. M. H. Manning 1901-6-7 88 Humboldt near Hupa Comment
  RSA20813  Solidago canadensis var. gilvocanescens C. B. Wolf 1937-9-9 9311 Humboldt North Coast Range, Wildcat Ridge, 6.3 miles south of Ferndale. 305 Comment
  CAS-BOT-BC365443  Solidago elongata W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC89418  Solidago lepida var. salebrosa P. A. Daly 1986-1-20 44 Humboldt Trinidad Head, along trail 61 Comment
  HSC12531  Solidago spathulata Wilbur Peterson 1970-10-7 22 Humboldt McKinleyville Beach at the end of Murray Rd. Comment
  RSA24389  Solidago spathulata C. B. Wolf 1941-2-22 9916 Humboldt Little River Beach State Park (north of Arcata). 8 Comment
  UC129319  Solidago spathulata Harley P. Chandler May 1901 1158 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  UC249853  Solidago spathulata Joseph P. Tracy 1924-9-21 6901 Humboldt around Humboldt Bay (Eureka); Northern Coast Region, around Humboldt Bay, Eureka 15 Comment
  HSC6179  Solidago velutina subsp. californica J. P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1223173  Soliva sessilis Joseph P. Tracy 1942-6-15 17157 Humboldt on the road to Harris 1/2 mi ne Garberville 304 Comment
  UC1199364  Sonchus asper Joseph P. Tracy 1934-8-6 13560 Humboldt along Mad River, near Blue Lake 15 Comment
  HSC39802  Sonchus oleraceus Peter Sorensen 1976-6-11 Humboldt King Salmon Comment
  HSC99386  Sorbus sitchensis var. grayi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 35 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET3825670  Sparganium eurycarpum Unknown 1912-8-20 2987 Humboldt Lower eal River Valley Comment
  HSC4236  Spergula arvensis S. J. Hawks 1965-4-6 22 Humboldt Clam Beach Comment
  RSA0098105  Spergularia rubra H. M. Pollard 1948-7-29 s.n. Humboldt Near Orleans. Comment
  POM160286  Spiraea densiflora Joseph P. Tracy 1926-6-20 7630 Humboldt Horse Mountain. 1463 Comment
  UC14209  Spiraea douglasii Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  UC666852  Spiraea douglasii Joseph P. Tracy 1937-7-17 15435 Humboldt Eureka 30 Comment
  UC1196399  Spiranthes romanzoffiana Joseph P. Tracy 1949-8-11 18463 Humboldt Snow Camp 1402 Comment
  HSC36652  Spiranthes romanzoffiana J. D. Ackerman 1975-8-2 620 Humboldt W end of Samoa Bridge at intersection of Hwy. 255 and Samoa Blvd. N spit, Humboldt Bay. 8 Comment
  UC1222863  Stachys ajugoides var. ajugoides Joseph P. Tracy 1951-6-21 19526 Humboldt back of Everett Beck's Ranch house (bed of former Goose Lake); Goose Lake, Hydesville Comment
  UC577327  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  UC668218  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UC726345  Stachys ajugoides var. rigida A. A. Heller 1923-7-8 13769 Humboldt near Pepperwood Comment
  UCLA70872  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 A Humboldt Valley of South Yager Creek 762 Comment
  JEPS63032  Stachys ajugoides var. rigida Milo S. Baker 1923-7-20 72 Humboldt 4 mi e Eureka; North Coast Comment
  BLMAR186  Stachys bergii Donald Hazlett 1994-6-7 186 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  RSA82579  Stachys emersonii F. W. Peirson 1926-7-12 7034 Humboldt Redwood Creek, Orick. Comment
  HSC14421  Stachys rigida J. F. Knezevich 1968-5-14 436 Humboldt 13 mi. S of Ferndale at Cape Mendocino 0 Comment
  RSA12456  Stachys rigida subsp. quercetorum Carl B. Wolf 1934-6-30 5837 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  SEINET200613  Stellaria borealis subsp. sitchana Joseph P. Tracy 27 Jun - 30 Jul 1908 2884 Humboldt Valley of Van Duzen River, opposite Buck Mountain. 762 Comment
  HSC4283  Stellaria crispa D. E. Anderson 1962-3-31 1963 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  HSC91609  Stellaria media E. Mackey 1987-1-17 Humboldt Patricks Point State Park, near Wedding Rock. Comment
  UC1197796  Stenanthium occidentale Joseph P. Tracy 1947-8-24 17901 Humboldt Box Camp; Trinity Summit 1463 Comment
  CAS-BOT-BC516465  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt Happy Camp Mountain, in Trinity Fummit range, northeast of Hawkins Bar 1280 Comment
  HSC98185  Stipa lemmonii J. P. Tracy 1928-6-24 8466 Humboldt Valley of South Yager Creek 762 Comment
  HSC99013  Stipa lemmonii var. lemmonii Cara Witte 2007-6-7 231 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC102164  Stipa occidentalis var. californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1074 Humboldt Patterson Meadows 1566 Comment
  CAS-BOT-BC87612  Streptanthus tortuosus Joseph P. Tracy 1932-7-12 10457 Humboldt Klamath Mountains. Trinity Summit. Head of Brett Hole. 1828 Comment
  HSC65856  Streptanthus tortuosus Gail Newton 1980-6-28 687 Humboldt Near Mad River Butte. 1536 Comment
  HSC57200  Streptanthus tortuosus var. tortuosus Terry Griswold, Marvin Butler 1979-7-10 7106 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC82543  Streptanthus tortuosus var. tortuosus Thomas W. Nelson 1979-7-11 5002 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1103498  Streptopus amplexifolius var. americanus Joseph P. Tracy 1936-8-7 15094 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC22724  Swertia albicaulis var. nitida Harley P. Chandler Jun 1901 1486 Humboldt Klamath River Northern Coast Ranges 426 Comment
  UC562306  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CHSC68779  Symphyotrichum chilense Vernon H. Oswald 1997-6-5 8539 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. 6 Comment
  HSC39446  Symphyotrichum chilense Linda M. Barker 1976-8-2 1676 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  CAS-BOT-BC98926  Symphyotrichum foliaceum var. parryi Joseph P. Tracy 1917-9-1 4836 Humboldt Murphy Meadow, Bald Mountain 1066 Comment
  UC1173673  Symphyotrichum spathulatum Joseph P. Tracy 1939-8-16 16402 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1402 Comment
  UC223712  Symphyotrichum subspicatum Elmer I. Applegate 1923-9-13 3992 Humboldt Stone Lagoon, (along seashore, edge of redwoods) Comment
  JEPS9930  Synthyris reniformis Lincoln Constance 1934-6-15 882 Humboldt South Fork Eel River (Summit of Grasshopper Peak); Bull Creek Region 975 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
  UCD124640  Synthyris reniformis D. C. Hagar 1957-6-20 145 -a Humboldt Cedar Creek Divide, 5.5 miles east of Willow Creek. 1066 Comment
  HSC26095  Synthyris reniformis Tim Baroni 1973-1-2 Humboldt 1.9 mi. above Angel Ranch on the road to Snow Camp 793 Comment
  RSA183562  Synthyris reniformis D. E. Anderson 1965-4-24 3542 Humboldt About 0.5 mile from jct 299, along Titlow Hill Road. Comment
  UC1198055  Synthyris reniformis Joseph P. Tracy 1927-4-23 7918 Humboldt Blue Lagoon; Northern Coast Region 6 Comment
  UC1198059  Synthyris reniformis Joseph P. Tracy 1909-5-16 2969 Humboldt Coast bluffs 3 mi n Trinidad; Northern Coast Ranges 30 Comment
  UCSB22982  Tanacetum bipinnatum Haller, John 1967-6-17 Humboldt At Clam Beach County Park, U.S. Highway 101, about 10 miles north of Arcata Comment
  UCD136744  Tanacetum bipinnatum Roman Gankin 1965-8-6 553 Humboldt west of road; 1.3 miles south of Samoa, Samoa Peninsula. Comment
  UC581791  Tanacetum vulgare H. E. Parks and Joseph P. Tracy 1932-9-24 10809 Humboldt Prairie Creek 91 Comment
  RSA167418  Taraxacum officinale Joseph P. Tracy 1943-4-10 17415 Humboldt Eureka Comment
  HSC49986  Tauschia glauca M. Andre' Baker 1979-6-7 787 Humboldt On N bank of the road to Snow Mt. 610 Comment
  CAS-BOT-BC85210  Taxus brevifolia Joseph P. Tracy 1924-9-7 6862 Humboldt Grizzly Creek on Van Duzen River 91 Comment
  POM319590  Taxus brevifolia Patricia Wilder 1968-8-22 4428 Humboldt Bull Creek Flat, Humboldt Redwood State Park, north of Weott and west of U. S. 101. Coast Mountain range, south fork of Eel River. 61 Comment
  UC1198891  Tellima grandiflora Joseph P. Tracy 1949-6-6 18311 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC447401  Tellima grandiflora H. D. Ripley; R. C. Barneby 1945-6-16 6824 Humboldt North of Harris Comment
  UC162865  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1908-6 2714 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC100463  Thelypodium lasiophyllum Carl C. Marshall 32 Humboldt No data. Comment
  UC667955  Thelypteris nevadensis Joseph P. Tracy 1937-7-25 15556 Humboldt ne of Hawkins Bar (Happy Camp Mt.); Trinity Summit Range 1280 Comment
  CAS-BOT-BC81310  Thuja plicata Carl B. Wolf 1930-10-25 1764 Humboldt 9 miles above Blue Lake along road to Willow Creek (Lord Ellis Road) 243 Comment
  RSA1090  Thuja plicata E. R. Johnson 1928-8-26 1149 Humboldt 7 miles east of Arcata Comment
  UCR124075  Tiarella trifoliata var. unifoliata George K. Helmkamp, E. A. Helmkamp 2001-7-8 6971 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC98858  Tiarella trifoliata var. unifoliata Cara Witte 2008-7-30 976 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  SEINET12217530  Tiarella unifoliata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -291 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC1197832  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1932-7-17 10672 Humboldt Trinity Summit; ridges E of Corral Prarie 1828 Comment
  JEPS49718  Tolmiea diplomenziesii W. L. Jepson 1902-7-11 2013 Humboldt South Fork of Trinity River; Martin's Ranch Comment
  JEPS26267  Tonella tenella Joseph P. Tracy 1902-6-3 1666 Humboldt near Hubbards Station (on ridge between Eel River and South Fork); Northern Coast Ranges 609 Comment
  UC642321  Torilis nodosa Joseph P. Tracy 1935-5-25 13892 Humboldt Dobbyn Creek 152 Comment
  SEINET7295169 Image available Torreyochloa pallida var. pauciflora Joseph P. Tracy 1940-1 16742 Humboldt Mouth of Little River 3 Comment
  CAS-BOT-BC169181  Toxicodendron diversilobum Doris K. Kildale 1928-5-31 5114 Humboldt Chalk Mountain Comment
  UC175495  Trichostema oblongum Joseph P. Tracy 1912-7-31 3945 Humboldt Buck Mountain, near the summit Northern Coast Ranges 1676 Comment
  CHSC31274  Trientalis latifolia Mark Stopher 1980-5-20 70 Humboldt In dense forest along the Van Duzen River near Rte 36. Comment
  HSC70760  Trientalis latifolia R. York 1980-5-17 523 Humboldt Near Le Perron Peak 792 Comment
  POM118789  Trientalis latifolia Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  BLMAR617  Trifolium albopurpureum Jennifer Wheeler 2011-5-20 617 Humboldt King range, Below Strawberry Rock in Mattole Dunes 7 Comment
  UC162776  Trifolium albopurpureum var. albopurpureum Joseph P. Tracy 1908-6 2854 Humboldt opposite Buck Mtn (valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC1197213  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1912-6-9 3668 Humboldt Alton Northern Coast Ranges Comment
  UC495672  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1929-5-5 8566 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  HSC99711  Trifolium angustifolium Glenn W. K. Shelton 2010-7-7 10 Humboldt 2.3 mi. S of Kneeland Rd./Mtn. View Rd. intersection, 1 mi. W of Kneeland Airport, along Kneeland Rd., turnout access to powerline corridor 524 Comment
  RSA739607  Trifolium arvense John Dittes, Josephine Guardino 2003-6-7 2003 -65 Humboldt 7.7 air SW of Orleans, 4.1 air miles NE of confluence of Trinity River and Klamath River., 0.3 air mile NW of confluence of Klamath River and Aikens Creek, along entrance road to Aikens Creek Campground. 107 Comment
  UC1103431  Trifolium barbigerum Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3636 Humboldt Eureka Northern Coast Ranges Comment
  UC162829  Trifolium barbigerum J. P. Tracy 1909-5-2 2964 Humboldt immediate vicinity Eureka 0 Comment
  UC1197493  Trifolium barbigerum Joseph P. Tracy 1904-4-24 2027 Humboldt Ocean Beach Humboldt Bay Comment
  UC1197186  Trifolium bifidum var. bifidum Joseph P. Tracy 1925-6-7 7080 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1197179  Trifolium bifidum var. decipiens Joseph P. Tracy 1903-5-23 1900 Humboldt at Alder Point (Eel River); Northern Coast Ranges 91 Comment
  UC1223500  Trifolium bifidum var. decipiens Joseph P. Tracy 1948-6-13 18027 Humboldt near Burr Creek (Larrabee Creek (Harris Trip)); Alder Point Comment
  CDA4294  Trifolium dubium G. D. Barbe, T. C. Fuller 1974-6-17 1837 Humboldt Sail Court, Shelter Cove. 0 Comment
  HSC45122  Trifolium dubium R. Sutherland 1978-5-12 1 .12578 Humboldt Mckee Flat 288 Comment
  HSC40039  Trifolium eriocephalum Thomas W. Nelson, James Nelson 1976-7-1 2890 Humboldt Ridge N of Bear Creek 1494 Comment
  UC249719  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1921-6-19 5834 Humboldt Berry's Mtn 914 Comment
  RSA183539  Trifolium fucatum var. fucatum G. Bos 1965-5-15 260 Humboldt 3 miles west of Berry Summit along U. S. 299. 610 Comment
  UC1197048  Trifolium hybridum J. P. Tracy 1901-6-16 1158 Humboldt immediate vicinity Eureka 0 Comment
  RSA592247  Trifolium hybridum Robert F. Thorne, Percy C. Everett 1965-8-8 35268 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  HSC59064  Trifolium incarnatum Thomas Wood 1979-4-6 95 Humboldt On Hwy. side W of 2nd bridge overpass from Eureka, on Gunther Island Comment
  HSC44836  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3520 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  UC33425  Trifolium longipes var. elmeri Chesnut and Drew 1888-8-1 Humboldt S. Fork of Trinity Comment
  UC1223370  Trifolium longipes var. hansenii Joseph P. Tracy 1950-8-8 19298 Humboldt Croghan Hole Trinity Summit 1676 Comment
  UC1223332  Trifolium longipes var. oreganum Joseph P. Tracy 1947-7-27 17836 Humboldt Horse Mtn Comment
  UC1197237  Trifolium macraei Joseph P. Tracy 1901-5-18 1098 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  UC494186  Trifolium microcephalum H. E. and S. T. Parks 1930-5-25 883 Humboldt Laribee Valley Comment
  UC1197552  Trifolium microcephalum Joseph P. Tracy 1927-6-18 8185 Humboldt betw Petrolia and the ocean Northern Coast Ranges 152 Comment
  HSC38068  Trifolium microdon Thomas W. Nelson, Jane P. Nelson 1976-5-30 2639 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC45144  Trifolium microdon R. Sutherland 1978-5-19 15 .19578 Humboldt 165 Comment
  UC1197488  Trifolium obtusiflorum Joseph P. Tracy 1920-5-18 5330 Humboldt 4 mi above mouth of Eel River (Forest Lodge, on South Fork); Northern Coast Ranges 60 Comment
  RSA246676  Trifolium pratense Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-8 35259 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  RSA349641  Trifolium pratense Unspecified 1936-8-18 4815 Humboldt South o f Eureka Comment
  SD90164  Trifolium repens Benjamin C. Stone 1952-6-21 117 Humboldt Stone Lagoon on Hwy 101 14 Comment
  HSC45117  Trifolium variegatum R. Sutherland 1978-5-19 11 .19578 Humboldt 134 Comment
  UC1223534  Trifolium variegatum var. melananthum Joseph P. Tracy 1935-5-25 13861 Humboldt Fort Seward 106 Comment
  UC495682  Trifolium variegatum var. variegatum Joseph P. Tracy 1932-5-17 100065 Humboldt Berry's Northern Coast Ranges (Redwood Creek) 274 Comment
  JEPS4173  Trifolium willdenovii Joseph P. Tracy 1932-5-1 9866 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  UCD109861  Trifolium willdenovii A. H. Murphy 1947-5-15 s.n. Humboldt In Klamath weed field, 3 miles south of Blocksburg. Comment
  UC631039  Trifolium wormskioldii P. B. Kennedy 1925-8-29 Humboldt near Eureka Comment
  CHSC69507  Triglochin maritima Vernon Oswald; Lowell Ahart 1997-9-4 8849 Humboldt North Coast Region. Big Lagoon County Park at the southwest edge of Big Lagoon. Bordering a drainage entering the lagoon at the boat ramp. 3 Comment
  HSC97549  Triglochin striata Ivy Watson 2008-9-20 30 Humboldt N of mouth of Mad River, along small tributary E of sand dunes 4 Comment
  CAS-BOT-BC520054  Trillium albidum Doris K. Kildale 1930-5-11 9542 Humboldt The Bald Hills Comment
  HSC101798  Trillium albidum Kjirsten A. Wayman 2011-6-5 279 Humboldt Near Cold Spring camp, 7.4 mi. south of Hwy 299 on Titlow Hill Rd., N 40.82998 deg. W 123.71219 deg. 1408 Comment
  UC1197821  Trillium albidum Curtis Drake March 1932 Humboldt Comment
  CAS-BOT-BC133392  Trillium ovatum R. N. Raynor 1934-4-1 s.n. Humboldt Above Fort Seward Comment
  HSC15702  Trillium ovatum K. P. St. John 1965-4-24 42 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  HSC22042  Trillium ovatum H. S. Logsdon 1964-4-11 15 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  SD112794  Trillium ovatum Darley F. Howe 1963-5-26 3557 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  UCD139911  Trillium ovatum Anstruther Davidson 1930-1 s.n. Humboldt Kelseyville. Comment
  HSC99354  Trillium ovatum subsp. oettingeri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 3 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC521312  Trillium rivale Joseph P. Tracy 1911-7-7 3413 Humboldt Brannan Mountain; Viz Ridge North of Willow Creek, between Willow and Campbell Creeks, near the summit, in pine forest; Northern Coast Ranges 1219 Comment
  SEINET10459891  Triodanis perfoliata Tracy TRACY 2197 Humboldt EUREKA Comment
  SEINET3821241 Image available Triodanis perfoliata Joseph P. Tracy 1908-7-1 2912 Humboldt Ridge between Van Duzen and Mad Rivers Comment
  HSC20858  Triphysaria eriantha Elrid H. Spinas 1948-6-16 56 Humboldt Horse Mtn. Comment
  UC1222434  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1927-5-8 7984 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  HSC34945  Triphysaria eriantha subsp. eriantha Robert M. Specht 1975-4-9 124 Humboldt End of Murray Rd., W of Hwy. 101 6 Comment
  UC1222443  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1935-5-25 13851 Humboldt Fort Seward 106 Comment
  HSC104272  Triphysaria versicolor subsp. versicolor Samantha E. Andres 2016-5-4 6 Humboldt Along Jackson Ranch Rd., near the bridge; ~.25 mi. from Hwy. 255 intersection 3 Comment
  UC1198042  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1936-6-6 14862 Humboldt Eureka 6 Comment
  CAS-BOT-BC199629  Trisetum canescens David D. Keck 1948-7-2 6006 Humboldt E. side of Rock Ridge, E. of Berry's Summit, 4.1 miles W. of Willow Creek. Near Boundary of Six Rivers Nat'l Forest 457 Comment
  UCD93602  Trisetum canescens P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  HSC13419  Trisetum cernuum R. D. Modafferi 1965-5-13 99 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  UC1056032  Trisetum cernuum H. E. and S. T. Parks June 1952 7551 Humboldt Spruce Cove; Trinidad 60 Comment
  UC15030  Triteleia bridgesii Mrs. M. H. Manning 1901-5-22 1 Humboldt Hupa Valley Comment
  UCSB13001  Triteleia hyacinthina Muller, Katherine 1954-6-21 Humboldt Olson Creek, 2 mi E. NE. of Mad River Comment
  JEPS58060  Triteleia laxa W. L. Jepson 1921-8-11 9412 a Humboldt Big Lagoon, Humboldt coast Big Lagoon Comment
  HSC35821  Triteleia laxa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1918 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  SEINET12053134  Triteleia laxa Unknown 1936-1 13196 Humboldt near Ukiah Comment
  UC1197721  Triteleia laxa J. P. Tracy 1906-6-24 2504 Humboldt s slope of hill near Fields Landing; Humboldt Hill 30 Comment
  HSC28303  Tsuga heterophylla Gary S. Lester 1973-12-8 63 Humboldt Comment
  RSA134598  Tsuga heterophylla P. C. Everett, E. K. Balls 1959-10-25 23963 Humboldt 22 miles west from Willow Creek along US Highway 299 to Arcata. 579 Comment
  RSA89626  Tsuga heterophylla E. K. Balls, P. C. Everett 1953-10-13 18654 Humboldt 11.3 mi to 16.6 mi E of jct. w/ Hwy 101 on Hwy 299 above Blue Lake. 244 Comment
  HSC69853  Typha latifolia R. Kalal 1980-7-20 91 Humboldt Along road to Arcata Marsh Project, foot of I St., Arcata. 2 Comment
  CAS-BOT-BC91108  Umbellularia californica Doris K. Kildale 1927-8-16 2515 Humboldt Upper Willow Creek Flat - Trinity River Valley. 152 Comment
  HSC62857  Umbellularia californica J. M. DiTomaso 1979-4-15 877 Humboldt Richardson Grove State Park, 80mi S of Eureka on Hwy. 101 Comment
  UC1193224  Umbellularia californica R. H. Neuns 1950-10-12 139 Humboldt Queens Peak, Quadrangle 28D4 Queens Peak 701 Comment
  UC1196284  Umbellularia californica Joseph P. Tracy 1912-3-31 3570 Humboldt in valley of Mad River near Glendale; Northern Coast Ranges 30 Comment
  UC1239525  Uropappus lindleyi Joseph P. Tracy 1921-4-24 5462 Humboldt slopes and open groves South Fork Eel River (Phillipsville); Northern Coast Ranges, , Phillipsville 121 Comment
  HSC37411  Urtica dioica subsp. gracilis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 507 Humboldt Along Lost Man Creek. 38 Comment
  SEINET200749  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt Around Humboldt Bay. Elk River Valley. 30 Comment
  UC1198133  Urtica dioica subsp. gracilis Joseph P. Tracy 1927-4-24 7948 Humboldt near Alton 60 Comment
  HSC21673  Urtica urens Wm. F. Bowman 1968-11-20 Humboldt 4 mi. SE of Arcata, along Jacoby Creek. Comment
  UC32648  Vaccinium Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5651 Humboldt Hoopa Mt. Comment
  HSC98063  Vaccinium membranaceum Cara Witte 2007-7-12 524 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  CAS-BOT-BC199314  Vaccinium ovatum M. S. Jussel 1931-5-2 s.n. Humboldt 30 miles n. of Garberville Comment
  CAS-BOT-BC199317  Vaccinium ovatum C. Hart Merriam 1921-7-7 s.n. Humboldt Van Duzen River Bridge Comment
  HSC12435  Vaccinium ovatum Gary J. Stebbins 1970-2-21 10 Humboldt Patricks Point State Park 38 Comment
  HSC7910  Vaccinium ovatum Dan O'Brien 1962-5-20 Humboldt 0.5 mi. E of Humboldt State University campus Comment
  POM257944  Vaccinium ovatum H. E. Parks, S. T. Parks 1937-04 5638 Humboldt Spruce Cove, Trinidad. Comment
  RSA1918  Vaccinium ovatum C. B. Wolf 1930-10-24 1017 Humboldt Along the Kamath River, 2 mi. below mouth of Salmon River. Comment
  UC1193355  Vaccinium ovatum P. Zinke 1950-9-21 165 Humboldt se slope Kerr Peak (Quad 29C2) 609 Comment
  CAS-BOT-BC199406  Vaccinium parvifolium Clarence R. Quick 1959-7-24 59 -35 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  CAS-BOT-BC199413  Vaccinium parvifolium Carl B. Wolf 1930-10-26 1768 Humboldt Along the Redwood Highway 3 mi. so. of Del Norte Co. line 152 Comment
  HSC7922  Vaccinium parvifolium J. Pursell 1964-10-11 10113 Humboldt Old Hwy. 101, 3 mi. N Patricks Point State Park Comment
  RSA1368  Vaccinium parvifolium E. R. Johnson 1929-08 1412 Humboldt Arcata Redwood Park 91 Comment
  UC1197765  Vaccinium parvifolium Joseph P. Tracy 1922-5-21 6051 Humboldt Fieldbrook, Northern Coast Ranges 60 Comment
  UC463032  Vaccinium parvifolium E. B. Copeland 1931-8-17 Humboldt Below Dinsmore; Van Duzen River 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
  SEINET12335251  Valeriana sitchensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -313 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC58189  Vancouveria hexandra G. L. Clifton, Griswold 1979-8-2 12280 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1537345  Vancouveria hexandra Gordon H. True Jr. 1936-5-12 470 Humboldt 5 mi s Kneeland; s of Kneeland 457 Comment
  UC503042  Vancouveria hexandra Joseph P. Tracy 1927-6-19 8196 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  HSC26868  Vancouveria hexandra Clifton Raymond Chesbrough 1973-6-19 91 Humboldt 1/2 mi. N of College Cove Comment
  HSC33018  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1973-7-5 98 Humboldt 1 mi. W of Tish a Tang Creek on Grogan Hill Rd., E of Hoopa 1524 Comment
  UC527825  Vancouveria hexandra Ira L. Wiggins 1932-6-12 5865 Humboldt 2 mi e Bayside (bank of Jacoby Creek); bank of Jacoby Creek Comment
  HSC24385  Vancouveria planipetala J. O. Sawyer 1970-6-24 2222 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC72636  Vancouveria planipetala J. P. Smith 1977-7-3 9247 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  RSA120717  Vancouveria planipetala S. S. Tillett 1956-7-6 613 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  CAS-BOT-BC76091  Vancouveria planipetala Clarence R. Quick 1959-7-24 59 -36 Humboldt Bee Mountain, ca. 12 miles southwest of Orleans. Comment
  HSC32234  Velezia rigida J. O. Sawyer 1970-6-24 2248 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC21173  Verbascum thapsus H. D. Sumner 1959-7-13 Humboldt Redwood Creek near Hwy. 299 305 Comment
  HSC99376  Veronica arvensis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 25 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CHSC53307  Veronica scutellata L. P. Janeway 1984-5-16 795 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd and ca 1/4 mile northwest of the boat ramp. 3 Comment
  UC176113  Veronica scutellata Joseph P. Tracy 1912-7-21 3778 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  SD42479  Veronica scutellata Carl B. Wolf 1937-6-18 8895 Humboldt 1/2 mi. so. of Fortuna 49 Comment
  HSC61645  Veronica serpyllifolia subsp. humifusa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  HSC63853  Veronica serpyllifolia subsp. humifusa M. A. Baker 1979-6-27 920 Humboldt Edge of Hoopa Indian Reservation Comment
  SEINET12157685  Vicia americana subsp. oregana J. P. Tracy 1946-1 17569 Humboldt at Green Point, W of Redwod Creek on Trinity Hwy 457 Comment
  HSC73151  Vicia americana var. americana M. A. Baker 1980-5-18 1304 Humboldt Near Black Mtn. 1006 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
  HSC23780  Vicia cracca R. A. Vanbianchi 1971-9-10 80 Humboldt Along Fieldbrook Rd., .1 mi. from junction with old Hwy. 299 Comment
  CHSC68498  Vicia gigantea Vernon H. Oswald 1997-4-10 8321 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  HSC86732  Vicia sativa subsp. nigra D. K. Imper May 1987 Humboldt Near Eureka Comment
  UC169306  Vicia tetrasperma Joseph P. Tracy 1912-7-7 3739 Humboldt Eureka; Northern Coast Region 0 Comment
  UCSB61648  Vicia tetrasperma Ertter, Barbara; Delendick, Thomas 1987-5-16 Humboldt Hwy 299 roadside ca. 8 mi E of Arcata, 9 1/2 mi W of Lord Ellis summit Comment
  CAS-BOT-BC263946  Viola adunca L. B. Kildale 1930-5-11 9543 Humboldt Bald Hills 853 Comment
  HSC21775  Viola adunca Richard Spjut 1968-10-26 205 Humboldt Near boat launching area at Big Lagoon Comment
  HSC32389  Viola adunca Linda M. Barker 1974-5-11 181 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  UC1762591  Viola cuneata Harley P. Chandler Jun 1901 1297 - Humboldt Hupa Indian Reservation North Coast Ranges 609 Comment
  HSC21785  Viola glabella Frances Oldridge 1946-1 Humboldt Eureka Comment
  HSC71037  Viola glabella Thomas W. Nelson 1977-4-20 3329 Humboldt Along USFS Road 1N15 at summit 915 Comment
  UCD164670  Viola glabella R. John Little; C. Little 1991-5-27 6484 Humboldt Kneeland Road ca. 3 mi E of Kneeland. (Exact location unknown. Coordinates estimated by label maker). 701 Comment
  UC1198458  Viola glabella Joseph P. Tracy 1913-6-20 4222 Humboldt in valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC21866  Viola hallii W. Lanphere 1937-5-11 Humboldt Hoopa Comment
  HSC82031  Viola hallii Thomas W. Nelson, James Nelson 1980-6-10 5399 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  UCR138879  Viola hallii J. Marshall, J. Savage, L. Allison 1997-5-10 32 Humboldt Humboldt Baseline Meridian: Forest Service Rd. #1, mile marker #8 945 Comment
  SEINET11996974  Viola lobata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -311 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CAS-BOT-BC530123  Viola lobata subsp. integrifolia J. H. Thomas 1949-6-13 907 Humboldt along trail between Le Perron Flat and Whiteys Peak; Six Rivers National Forest 1371 Comment
  CHSC24744  Viola ocellata G. Strang 1976-4-10 6 Humboldt Ca. 1.5 mi e of Bridgeville on the ne facing bank. 1280 Comment
  CHSC24856  Viola ocellata A. D. Launer 1976-4-9 1 Humboldt N roadbank of Church St., ca. 100 yds e of Blocksburg. 472 Comment
  POM286593  Viola ocellata Lyman D. Benson 1928-7-11 403 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  HSC38790  Viola praemorsa subsp. praemorsa J. P. Smith 1976-5-30 8823 Humboldt Near Black Rock on the road to Clear Lake 1524 Comment
  HSC39623  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1976-6-15 2727 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC49693  Viola sempervirens J. O. Sawyer 1977-4-23 2842 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  RSA244947  Viola sempervirens Norman Dennis 1965-5-8 55 Humboldt 0.1 mile west of Lord Ellis Summit on Hwy 299. Comment
  CAS-BOT-BC203048  Vitis californica Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon Comment
  HSC67529  Vitis californica J. P. Smith, Steve Selva 1970-6-14 3839 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  JEPS40256  Vitis californica W. L. Jepson 1924-9-20 10653 Humboldt Richardson Grove South Fork Eel River Comment
  UC177238  Vitis californica Joseph P. Tracy 1912-7-23 3799 Humboldt along river 5 mi above river mouth; Northern Coast Ranges, South Fork of Eel River 30 Comment
  CAS-BOT-BC199801  Vulpia Doris K. Kildale 1927-6-25 3563 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  CAS-BOT-BC198760  Vulpia bromoides Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  HSC9841  Vulpia bromoides J. W. Johnson 1962-5-9 1350 Humboldt Christenson Farm, Samoa Peninsula. Comment
  UC1103714  Vulpia bromoides Joseph P. Tracy 1936-6-17 14960 Humboldt nw slope Buck Mountain; Burr Valley 1066 Comment
  UCD93441  Vulpia bromoides Linda M. Barker 1976-4-30 1398 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC32482  Vulpia microstachys Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  SEINET200330 Image available Vulpia microstachys var. pauciflora Joeseph P. Tracy 4463 Humboldt Fort Seward 122 Comment
  SEINET200356 Image available Vulpia microstachys var. pauciflora Joseph P. Tracy 1925-7-5 7170 Humboldt Bald Mountain; near High Prairie. 1067 Comment
  UC579195  Vulpia microstachys var. pauciflora H. S. Yates 1936-6-17 5712 Humboldt near Burr Valley; South Fork Peak Quad. 914 Comment
  HSC70744  Vulpia myuros R. York 1980-5-17 539 Humboldt Near Le Perron Peak 1066 Comment
  POM111894  Vulpia myuros H. P. Chandler 1901-05 1120 Humboldt Humboldt Bay. 30 Comment
  RSA183638  Vulpia myuros D. E. Anderson 1965-9-5 4088 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  RSA10060  Vulpia myuros var. hirsuta Joseph P. Tracy 1925-5-17 6968 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  UC1152014  Vulpia myuros var. hirsuta A. H. Murphy 1951-4-2 7 Humboldt 0.25 mi s Phillipsville (along Highway 101) Comment
  SEINET200325 Image available Vulpia myuros var. myuros J. P. Tracy 1900-1 858 Humboldt Eureka. Comment
  UC525643  Vulpia octoflora var. hirtella Joseph P. Tracy 1929-7-4 8618 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  JEPS49626  Whipplea modesta W. L. Jepson 1932-7-26 16400 Humboldt Bull Creek Comment
  SD51271  Whipplea modesta Darley F. Howe 1961-8-2 3121 Humboldt 7.7 miles east of Orick on Bald Mountain Road. 609 Comment
  HSC100587  Whipplea modesta Carl C. Marshall Jul 1886 332 Humboldt Mountains. Comment
  HSC13047  Woodwardia fimbriata Jana Kattenhorn 1970-10-24 122 Humboldt H.S.C. Campus, Arcata, N side of building 53 Comment
  UC1199260  Wyethia angustifolia Joseph P. Tracy 1936-6-10 14928 Humboldt w of mouth South Fork Trinity River 457 Comment
  CHSC98382  Wyethia longicaulis Dean Wm. Taylor 2004-6-24 19132 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  HSC76215  Wyethia longicaulis Overton, Butler 1979-7-24 9727 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC1096426  Wyethia longicaulis W. L. Colwell 1957-8-6 52 Humboldt 11 mi northeast of Bridgeville near Six Rivers National Forest Comment
  UCD137004  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. At Ammon Ridge Rd. 1524 Comment
  UC673077  Xanthium strumarium Joseph P. Tracy 1940-10-5 16747 Humboldt Trinidad 3 Comment
  HSC25958  Xanthium strumarium Thomas W. Nelson 1970-10-31 286 Humboldt Eel River near N end of the Scotia Bluff. Comment
  UC20894  Yabea microcarpa Harley P. Chandler June, 1901 1315 Humboldt Hupa Indian Reservation; North Coast Ranges 152 Comment
  HSC8424  Zeltnera muehlenbergii D. E. Anderson 1961-9-2 1765 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  UC1225856  Zigadenus micranthus var. micranthus Joseph P. Tracy 1947-7-9 17860 Humboldt Horse Mountain 1432 Comment
  UC297846  Zostera marina H. E. Parks 1923-5-30 1756 Humboldt Eureka Comment



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