Search Results — 2000 specimen records retrieved (1355 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC41313  Abies concolor Brad Klipfel 1974-9-2 543 Humboldt Horse Mountain Comment
  UC502913  Abies concolor Joseph P. Tracy 1927-6-12 8144 Humboldt Horse Mountain 1524 Comment
  CAS-BOT-BC78060  Abies grandis Doris K. Kildale 1926-11-27 2841 Humboldt Alton Hill 45 Comment
  NY29281  Abies grandis J. P. Tracy 1932-3-20 9781 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC502907  Abies magnifica var. shastensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8963 Humboldt in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC55034  Abies procera Overton, Butler 1979-7-31 11480 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  RSA0025082  Abronia latifolia I. L. Wiggins 1930-7-7 4672 Humboldt Sand dunes near Samoa. Comment
  RSA28775  Abronia umbellata subsp. breviflora H. E. Parks 1941-09 24212 Humboldt Mouth of Little River. Comment
  CAS-BOT-BC436983  Acaena novae-zelandiae E. C. Whitney 1966-7-28 s.n. Humboldt Mather property, Simpson Lumber Co., Fieldbrook Comment
  CDA40639  Acaena novae-zelandiae G. S. Lester 1973-11-8 55 Humboldt Anchor Tree Farm, east of McKinleyville, near Fieldbrook. Comment
  RSA202442  Acaena novae-zelandiae D. W. Cooper, F. Advisor 1966-10-10 s.n. Humboldt ridge just SE of Forest Service Nursery, 2 miles SE of Crannell, 4 miles E of Hwy 101 Comment
  CAS-BOT-BC330565  Acer circinatum W. R. Dudley 1899-6-21 s.n. Humboldt Englewood Creek, Eel River Comment
  HSC2783  Acer circinatum L. J. Coombes 1964-5-16 33 Humboldt Camp Bowers, 3 mi. SE of Blue Lake 1524 Comment
  SEINET200861 Image available Acer glabrum Joseph P. Tracy 1933-7-11 12707 Humboldt North Coast Ranges, Grouse Mountain 1520 Comment
  HSC58053  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-8-1 11919 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC331590  Acer macrophyllum Joseph Andorfer Ewan 1937-7-1 10435 Humboldt Stephan Grove on Eel River, N of Garberville Comment
  CAS-BOT-BC331594  Acer macrophyllum C. B. Wolf; Johnson 1934-10-11 6756 Humboldt Redwood Highway, Eel River, 6.4 mi N of Humboldt Redwood Park Comment
  HSC13074  Acer macrophyllum D. Santana, C. Kline Oct 1970 23 Humboldt HSC Campus Comment
  HSC98356  Acer macrophyllum T. Jimerson, J. Pageau 1979-7-31 706 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  UC166038  Acer macrophyllum Joseph P. Tracy 1910-4-17 3117 Humboldt near the forks Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, nr Elk River 0 Comment
  HSC53792  Achillea millefolium Griswold, Butler 1979-7-10 6204 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UC1222918  Achillea millefolium Joseph P. Tracy 1941-8-24 17044 Humboldt near, McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC28581  Achillea millefolium David D. Keck 1949-7-12 6326 Humboldt 4 miles south of Scotia (halfway between Scotia and Pepperwood). Comment
  HSC102055  Achlys californica M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 960 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  UC203890  Achlys californica Joseph P. Tracy 1918-5-28 4951 Humboldt High Prairie on Bald Mt. Northern Coast Ranges, Bald Mt. 1066 Comment
  HSC42004  Achlys triphylla Tom Duebendorfer 1977-5-15 51 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC73767  Achlys triphylla Gail Newton 1980-7-20 1609 Humboldt Near Bell Swamps 1426 Comment
  UCD50689  Achnatherum lemmonii R. Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UCD50710  Achnatherum lemmonii G. L. Stebbins Jr.; G. L. Church 1941-5-27 3117 Humboldt 10.3 miles west of Dinsmore's, on road to Bridgeville. Humboldt County. Comment
  HSC76515  Acmispon micranthus Denis Kearns 1981-7-8 160 Humboldt Near Bluff Creek 622 Comment
  HSC90752  Acmispon micranthus Gail Newton 1982-5-5 2537 Humboldt Elk River Wildlife Area, Eureka. Comment
  BLMAR154  Acmispon parviflorus Donald Hazlett 1994-6-7 154 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC97999  Aconitum columbianum Cara Witte 2007-7-9 452 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1554 Comment
  RSA168919  Aconitum columbianum Joseph P. Tracy 1950-7-31 19242 Humboldt NE side of top of Grouse Mtn Comment
  HSC73766  Aconogonon davisiae Gail Newton 1980-7-24 1772 Humboldt Near Somes Mtn. 1615 Comment
  HSC56125  Actaea rubra G. L. Clifton, Griswold 1979-8-1 11914 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC63883  Actaea rubra M. A. Baker 1979-6-27 925 Humboldt Edge of Hoopa Indian Reservation Comment
  JEPS60388  Actaea rubra Lincoln Constance 1934-6-1 771 Humboldt Bull Cr. rd. between Dyerville Bridge and Bull Cr. flat grove (mouth of Bull Creek) mouth of Bull Creek; Bull Creek Region, S. Fork Eel R. 45 Comment
  SBBG7504  Adenocaulon bicolor H. and M. Dearing 1939-6-20 3687 Humboldt W of Willow Crk Comment
  HSC100421  Adenocaulon bicolor Carl C. Marshall Jul 1886 351 Humboldt Xavier's Place, Bald Hills. Comment
  OBI17136  Adenocaulon bicolor Joseph T. Gregory 1933-8-6 525 Humboldt Woods near Gann's Prairie Rd from Orick to Orleans Comment
  UC1102641  Adiantum X tracyi J. Neeman 1948-1 Humboldt near Garberville Comment
  UC1440273  Adiantum X tracyi L. L. Kiefer and D. Branscomb 1964-5-19 1406 Humboldt ca. 1 mi n Garberville (ravine above Hwy 101) 304 Comment
  HSC41273  Adiantum aleuticum Brad Klipfel 1974-6-25 421 Humboldt Horse Mtn. Comment
  HSC955  Adiantum aleuticum J. Wendell Howe 1930-9-9 Humboldt 3 mi. SW of Fieldbrook Comment
  HSC98752  Adiantum aleuticum Cara Witte 2007-7-12 514 Humboldt Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1339 Comment
  CAS-BOT-BC65727  Adiantum pedatum Kenneth Clark 1980-6-14 691 Humboldt Point Delgada quad, north fork Dead Man's Gulch 83 Comment
  HSC100385  Adiantum pedatum Carl C. Marshall Jun 1885 111 Humboldt Damp woods. Comment
  RSA178539  Aesculus californica Joseph P. Tracy 1950-6-21 18856 Humboldt Trinity River Valley, near the South Fork: At mouth of South Fork, on west side. 183 Comment
  UC1222301  Aesculus californica Joseph P. Tracy 1950-7-6 18983 Humboldt Bridgeville 198 Comment
  HSC54875  Agastache urticifolia G. L. Clifton, Griswold 1979-7-25 10852 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1239672  Agastache urticifolia Joseph P. Tracy 1934-7-18 13445 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC30384  Ageratina occidentalis Henry M. Pollard 1948-7-28 s.n. Humboldt Near Orleans Comment
  UC1222928  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-15 19047 Humboldt 1 mi n Willow Creek; Trinity River Comment
  UC1222944  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1945-7-15 17513 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  RSA167315  Agoseris heterophylla Joseph P. Tracy 1950-7-6 19006 Humboldt On the Albee Road 2 miles south of Burr Valley 1159 Comment
  UC166071  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1911-7-7 3391 Humboldt at meadows on mountainside near, (3 mi nw of junc of Willow Creek w/ Trinity R.) Beebe's Ranch; Northern Coast Ranges, Willow Creek, Trinity River 914 Comment
  UC249842  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  UC1222764  Agoseris retrorsa Joseph P. Tracy 1951-7-26 19591 Humboldt at extreme head of, gravelly spot, n side of Board Camp Mountain Redwood Creek; Board Camp Mountain 1541 Comment
  HSC8778  Agrostis densiflora J. P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon 6 Comment
  RSA44465  Agrostis densiflora Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  RSA53834  Agrostis exarata Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  UC204531  Agrostis exarata Joseph P. Tracy 1918-7-21 5085 Humboldt around Humboldt Bay (mossy bog); Northern Coast Ranges, Humboldt Hill 91 Comment
  UC511548  Agrostis hallii Ira L. Wiggins 1932-7-25 5896 Humboldt roadsides near McKinleyville Comment
  UC36960  Agrostis microphylla Harley P. Chandler May, 1901 1253 Humboldt Redwood Belt North Coast Ranges, Redwood Belt 304 Comment
  CAS-BOT-BC139124  Agrostis oregonensis Joseph P. Tracy 1924-7-4 6711 Humboldt Northern Coast Ranges. Snow Camp. 1371 Comment
  UC526876  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8933 Humboldt in wet meadow at McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC526879  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt in cold wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CDA20604  Agrostis pallens B. Freeman 2005-8-1 PDR 1368990 Humboldt North Coast; Big Lagoon. 0 Comment
  HSC8810  Agrostis stolonifera C. B. Wolf 1927-8-27 1189 Humboldt Eureka Bay, on the road from Eureka to Arcata. Comment
  RSA54134  Agrostis stolonifera Henry M. Pollard 1986-8-22 s.n. Humboldt Roadside near Orleans Comment
  UCD53503  Agrostis stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-3 1168 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  HSC8861  Aira caryophyllea unknown May 1933 4003 Humboldt Spruce Cove, Trinidad Comment
  UCD55705  Aira caryophyllea Joseph P. Tracy 1941-6-15 16907 Humboldt Wilder Ridge, east of Kings Peak. 762 Comment
  HSC42389  Allium amplectens Dale McNeal 1977-6-6 2046 Humboldt Beside the Bridgeville-Kneeland Rd., 9.4 mi. N of Bridgeville Comment
  HSC74089  Allium falcifolium Gail Newton 1980-6-28 679 Humboldt Near Mad River Butte 1536 Comment
  UC303036  Allium falcifolium Joseph P. Tracy 1926-6-20 7612 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  SEINET4208044  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U.S. Hwy. 101 ca 1.0 miles west of Orick.; 0 4 Comment
  HSC2971  Allium triquetrum N. D. Dennis 1965-4-17 25 Humboldt 1.0 mi. from Arcata on Old Samoa Rd. Comment
  JEPS56396  Allium unifolium Joseph P. Tracy 1918-7-5 5004 Humboldt Mattole River Northern Coast Ranges, White Thorn Valley, Mattole River 304 Comment
  UC1224691  Allotropa virgata D. E. Anderson 1963-5-18 2447 Humboldt about 1 mi nw of Burnt Ranch School Comment
  HSC13115  Alnus rubra C. Kline, D. Santana Oct 1970 31 Humboldt HSC Campus Comment
  POM257502  Alnus rubra H. E. Parks, S. Parks 1938-4-1 24126 Humboldt Spruce Cove, Trinidad. 61 Comment
  UCR3548  Alnus rubra David Whistler, H. M. Whistler 1964-7-31 640731- 10 Humboldt North Coast, 0.2 mi. south of Prairie Creek Redwoods State Park, along US Hwy 101, and Prairie Creek [Camp Rd.?] 10 Comment
  UCD110049  Alnus viridis subsp. sinuata Joseph P. Tracy 1947-8-24 17913 Humboldt Near Box Camp. 1524 Comment
  RSA129283  Alopecurus geniculatus H. L. Person 1932-5-11 19411 Humboldt Near Arcata 0 Comment
  CAS-BOT-BC142891  Amelanchier alnifolia var. semiintegrifolia J. P. Tracy 1909-5-2 2953 Humboldt Near Eureka 152 Comment
  CAS-BOT-BC142893  Amelanchier alnifolia var. semiintegrifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC142901  Amelanchier alnifolia var. semiintegrifolia Thomas Nelson 1977-6-15 3438 Humboldt Along old road to ski area, Willow Creek Quad. - North Coast Ranges 1371 Comment
  HSC55599  Amelanchier pallida Overton, Butler 1979-7-23 9413 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC55618  Amelanchier pallida Overton, Butler 1979-7-23 9521 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC55995  Amelanchier pallida Overton, Butler 1979-7-31 11432 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC183554  Amelanchier utahensis Joseph P. Tracy 1913-6-17 4188 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC666831 Image available Amelanchier utahensis Joseph P. Tracy 1933-6-13 12573 Humboldt Hoopa Mountain; near summit on road from Hoopa w to Bair's 1066 Comment
  UC505104  Ammannia robusta Joseph P. Tracy 1931-9-7 9659 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  OBI65609  Ammophila arenaria G. Douglas Barbe, T. C. Fuller, Hrusa 2-2000 1974-6-19 1881 Humboldt North Coast Ranges. Mad River mouth, beach S of river, at end of Iversen Ln, Tyee City Comment
  RSA86667  Ammophila arenaria F. W. Peirson 1941-7-29 13112 Humboldt Little River Beach State Park. Comment
  UC584207  Ammophila arenaria David D. Keck and J. Clausen 1935-6-16 3387 Humboldt Mouth of Little River Little River Comment
  UC199415  Amsinckia P. E. Goddard 1907-6-5 F 117 Humboldt Van Duysen Comment
  UC594248  Amsinckia intermedia S. K. Harris, J. P. Tracy and H. S. Yates 1936-6-17 3429 Humboldt nw slopes of Buck Mountain 822 Comment
  UCD117538  Anagallis arvensis Malcolm A. Nobs; S. Galen Smith 1949-8-11 1342 Humboldt eastern shore of Stone Lagoon. Comment
  HSC40259  Anaphalis margaritacea Linda M. Barker 1976-8-2 1671 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  UC165846  Anaphalis margaritacea J. P. Tracy 1901-7-29 1226 Humboldt immediate vicinity Eureka 0 Comment
  UC165847  Anaphalis margaritacea J. P. Tracy 1900-8-5 916 Humboldt immediate vicinity Eureka 0 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
  UC1196197  Anemone deltoidea Joseph P. Tracy 1935-7-28 14309 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC391772  Anemone deltoidea M. Louise Hutchinson 1913-5-1 s.n. Humboldt Near Eureka Comment
  UC160913  Anemone deltoidea J. P. Tracy 1906-5-20 2467 Humboldt vicinity of Eureka (near Cutten and MacDonald Tract) 0 Comment
  UC582654  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  UC642237  Angelica hendersonii Joseph P. Tracy 1938-8-28 16133 Humboldt Trinidad 3 Comment
  CAS-BOT-BC221416  Angelica hendersonii A. A. Heller 1924-7-23 s.n. Humboldt At Humboldt County camp on the redwood highway 7 miles south of Trinidad Comment
  HSC41310  Angelica tomentosa Brad Klipfel 1974-9-2 545 Humboldt Horse Mtn. Comment
  HSC98637  Angelica tomentosa Cara Witte 2007-7-25 578 Humboldt Forest Service Road 5N10. Approximately 1/2 mile from intersection with Forest Service Road 5N41. 1283 Comment
  UC642239  Angelica tomentosa Joseph P. Tracy 1938-8-14 16107 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UC127608  Anisocarpus madioides Mrs. M. H. Manning June 1902 Humboldt Hupa Comment
  UC485304  Anisocarpus madioides J. P. Tracy 1903-5-24 1909 Humboldt Alder Point 304 Comment
  CAS-BOT-BC271494  Anisocarpus madioides Mark Bransom; Daniel Brown; Ron Hildebrandt; Nina Meiselman 1986-4-19 23 Humboldt 1 1/2 mi. west of Burnt Ranch on R. 299, Burnt Ranch Campground Comment
  UC1222880  Antennaria media Joseph P. Tracy 1950-8-8 19297 Humboldt Croghan Hole Trinity Summit 1676 Comment
  SEINET202631 Image available Antennaria rosea Joseph Tracy 1935-7-24 14169 .5 Humboldt Trinity Summit near ranger station 1829 Comment
  HSC4648  Antennaria suffrutescens D. E. Anderson 1963-9-21 2845 Humboldt Grouse Mtn. Rd Comment
  UC582631  Anthemis arvensis Joseph P. Tracy 1937-10-3 15691 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC33171  Anthemis cotula Thomas W. Nelson 1973-8-19 1111 Humboldt McKeown Ranch N of Dinsmore, floodplain of Mad River Comment
  CAS-BOT-BC137739  Anthoxanthum odoratum David D. Keck 1948-7-2 6010 Humboldt 1.5 mile esat of Freshwater (Garfield), on Kneeland Road. Comment
  HSC34811  Anthoxanthum odoratum Dryden 1975-4-21 128 Humboldt Arcata 0 Comment
  HSC89483  Anthoxanthum odoratum P. A. Daly 1986-3-12 70 Humboldt Trinidad Head, along trail 61 Comment
  HSC8949  Anthoxanthum odoratum R. T. Forester 1963-4-30 52 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC1100218  Anthoxanthum odoratum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1208 Humboldt 2 mi n of Eureka (bordering Humboldt Bay); Humboldt Bay Comment
  UCD56235  Anthoxanthum odoratum Joseph. P. Tracy 1942-6-2 17101 Humboldt 2 miles north of Bridgeville. 609 Comment
  UCSB297  Anthoxanthum odoratum Parker, H.; Parks, S. 1952-04 Humboldt Spruce Cove, Trinidad 60 Comment
  POM132652  Apiastrum angustifolium L. R. Abrams 1916-7-11 6030 Humboldt Mouth of Grizzly Creek Comment
  HSC98059  Apocynum androsaemifolium Cara Witte 2007-7-11 498 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  UC154173  Apocynum cannabinum Harley P. Chandler June, 1901 1426 Humboldt Klamath R. North Coast Ranges, Klamath R. 304 Comment
  CAS-BOT-BC392162  Aquilegia formosa M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale, 8 mi. N. of Garberville Comment
  HSC44500  Aquilegia formosa Brad Klipfel 1973-4-28 14 Humboldt Along Canyon Creek, SW of Korbel Comment
  SEINET12093083  Aquilegia formosa F. H. Utech 1986-1 86 -391 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  HSC56100  Aquilegia formosa var. truncata G. L. Clifton 1979-7-31 11823 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC70689  Arabis breweri var. breweri Gail Newton 1980-7-15 1568 Humboldt Near Sims Mtn. 1311 Comment
  HSC70246  Arabis subpinnatifida M. A. Baker 1980-6-8 1912 Humboldt Near Buck Flat. 1554 Comment
  HSC44361  Aralia californica Brad Klipfel 1974-8-2 511 Humboldt Horse Mtn., draw above Horse Mtn. creek Comment
  RSA175206  Arbutus menziesii R. F. Thorne 1957-9-2 19006 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  RSA183602  Arbutus menziesii Norman Dennis 1965-5-8 59 Humboldt 6 miles east of Blue Lake on Highway 299. Comment
  UC1196880  Arbutus menziesii F. C. Gregory 1919-10-10 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS44155  Arctium minus W. L. Jepson 1921-9-10 9459 Humboldt flat at Philipsville; flat at Philipsville Comment
  UC585953  Arctostaphylos Joseph P. Tracy 1932-7-18 10722 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  UC902044  Arctostaphylos Joseph P. Tracy 1949-8-4 18406 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC98662  Arctostaphylos canescens subsp. canescens C. Witte 2007-5-17 28 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  JEPS118167  Arctostaphylos canescens subsp. canescens Dean W. Taylor 2009-7-14 20676 Humboldt vicinity Huestis Prairie (watershed Redwood Creek) 975 Comment
  CAS-BOT-BC23749  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt Fickle Hill, 6 mi. SE of arcata 609 Comment
  CAS-BOT-BC23758  Arctostaphylos columbiana Alice Eastwood 1907-4-22 98 a Humboldt Adams Station, across river. Comment
  CAS-BOT-BC23765  Arctostaphylos columbiana Joseph P. Tracy 1947-5-24 17693 Humboldt Big Lagoon, Devil's Canyon 152 Comment
  JEPS38961  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  RSA622692  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27674 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
  RSA622696  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27680 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
  UC876392  Arctostaphylos columbiana J. E. Adams 1935-5-12 1047 Humboldt Patrick's Point Comment
  UCD50770  Arctostaphylos columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's point. Comment
  HSC54509  Arctostaphylos glandulosa Overton, Butler 1979-7-23 9415 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  CAS-BOT-BC24475  Arctostaphylos manzanita Walter Knight; Irja Knight 1988-9-5 6362 Humboldt Bald Hill Road about 21.5 mi. from U.S. 101 en route to Hoopa. 929 Comment
  HSC48987  Arctostaphylos manzanita M. A. Baker 1979-5-25 761 Humboldt Comment
  HSC74675  Arctostaphylos manzanita Gail Newton 1981-5-16 2177 Humboldt Near Bug Creek. 1228 Comment
  CAS-BOT-BC24370  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC38830  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Trinity river Valley at willow Creek 152 Comment
  HSC49996  Arctostaphylos nevadensis M. A. Baker 1979-6-7 781 Humboldt 610 Comment
  JEPS38983  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC40027  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  HSC98990  Arctostaphylos nevadensis subsp. nevadensis Cara Witte 2008-6-27 774 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  UC21843  Arctostaphylos patula J. Burtt Davy 1899-6-22 5784 Humboldt Trinity summit North Coast Ranges 2133 Comment
  RSA257620  Arctostaphylos stanfordiana Gary D. Wallace 1975-8-23 1488 Humboldt W. side of Hwy. 101 1/4 mi. from Garberville along road toward Redway. Comment
  CAS-BOT-BC43997  Arctostaphylos uva-ursi Harley P. Chandler 1901-5-1 1133 Humboldt Humboldt Bay 3 Comment
  HSC33172  Arctostaphylos uva-ursi Thomas W. Nelson 1974-4-20 1181 Humboldt Elk Head, N of Trinidad Comment
  UCSB15774  Arctostaphylos uva-ursi 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  RSA741641  Arctostaphylos uva-ursi var. coactilis Patricia Wilder 1968-8-21 4409 Humboldt Northern coastal arm of Humboldt Bay, ca. 1 mile SW of Samoa, in sand dunes. 15 Comment
  CDA34337  Arctotheca calendula G. D. Barbe, T. C. Fuller 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 miles W of Main St., Centerville Beach Rd., Ferndale. 0 Comment
  CAS-BOT-BC82102  Arnica cernua Joseph P. Tracy 1938-6-13 15902 Humboldt Horse Mountain 1432 Comment
  JEPS20973  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Ruby Creek 609 Comment
  UC581754  Arnica discoidea Joseph P. Tracy 1935-7-23 14154 Humboldt Lower end of Brett Hole Trinity Summit 1584 Comment
  HSC33626  Arnica discoidea Thomas W. Nelson, Jane P. Nelson 1976-6-15 2730 Humboldt Growing on FS road N of Alder Springs 1524 Comment
  UC1223004  Arnica latifolia Joseph P. Tracy 1942-6-23 17236 Humboldt near Box Camp ((Trinity Summit)); Trinity Summit 1463 Comment
  UC180348  Arrhenatherum elatius Joseph P. Tracy 1913-6-10 4084 Humboldt near Bridgeville (Northern Coast Ranges, Rogers Ranch); Northern Coast Ranges, Rogers Ranch 243 Comment
  UC212866  Arrhenatherum elatius Joseph P. Tracy 1919-8-28 5184 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  SBBG62497  Artemisia douglasiana H. E. Parks -May-1940 24178 Humboldt Little River Comment
  HSC40298  Artemisia pycnocephala Linda M. Barker 1976-7-5 1633 Humboldt 3 mi. W of Arcata. Comment
  RSA246933  Artemisia pycnocephala R. F. Thorne, Percy C. Everett 1965-8-5 35169 Humboldt Samoa Dunes. 3 Comment
  IRVC497  Artemisia pycnocephala John Johnson 1961-9-4 1098 Humboldt Arcata; Christenson Farm. Comment
  SD56775  Artemisia suksdorfii Darley F. Howe 1963-7-8 3620 Humboldt 2.5 miles west of Bridgeville on Cal. 36. 149 Comment
  HSC24387  Asarum caudatum J. O. Sawyer 1970-6-24 2257 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  POM318583  Asarum caudatum Patricia Wilder 1968-8-22 4421 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
  UC1198119  Asarum caudatum Joseph P. Tracy 1925-3-15 6942 Humboldt Blue Slide; on Van Duzen River 91 Comment
  UC1135997  Asarum caudatum R. Stahelin 1933-5-18 Humboldt Aroata City Park; Eureka Comment
  UC1173688  Asclepias cordifolia Joseph P. Tracy 1939-5-6 16277 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC449996  Asclepias speciosa Mrs. M. H. Manning 1900-6 Humboldt Hupa Valley Comment
  SEINET11852839  Aster chilensis J. P. Tracy 1950-1 19362 Humboldt Cape Ridge, 0.5 mi S of Capetown, along coast road, 1 i inland from Cape Mendocino 200 Comment
  POM214878  Astragalus rattanii var. rattanii Joseph P. Tracy 1932-6-19 10245 Humboldt Buck Mountain, lower foothills of its northwest slope 762 Comment
  RSA475237  Astragalus rattanii var. rattanii Aaron Liston, Sara Meury 1988-5-29 746 -1 Humboldt Grizzly Creek Redwoods State Park; banks of Van Duzen River. 150 Comment
  UC1222422  Astragalus rattanii var. rattanii Joseph P. Tracy 1962-7-24 19626 Humboldt Blue Slide on Van Duzen River (Van Duzen); , Blue Slide 91 Comment
Read comments
Jun 28 2015
  HSC74724  Asyneuma prenanthoides Gail Newton 1981-8-6 2408 Humboldt Near Mad River. 1308 Comment
  SFV18602  Asyneuma prenanthoides T. W. Nelson, J. P. Nelson 1987-6-27 8619 Humboldt Along USFS road to Onion Lake, 8.2 miles from junction with State Route 96. 823 Comment
  HSC3825  Asyneuma prenanthoides J. Sandborg, F. Sandborg 1968-7-19 54 Humboldt Bluff Creek near Notice Creek, near road below Notice Creek Bridge. Comment
  HSC97997  Asyneuma prenanthoides Cara Witte 2007-7-9 454 Humboldt Grouse Mountain. Forest Service Road 5N04. 1/4 mile east of spring. 1554 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
  JEPS70200  Athyrium filix-femina var. cyclosorum Robert J. Rodin 1969-8-18 8384 Humboldt along Redwood Creek near Orick Comment
  UC503067  Athyrium filix-femina var. cyclosorum H. E. Parks and Joseph P. Tracy 1930-9-13 9180 Humboldt Jacoby Creek; Northern Coast Ranges 121 Comment
  UC503069  Athyrium filix-femina var. cyclosorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9008 Humboldt near McKay Camp S Fork Mt; Northern Coast Ranges 1676 Comment
  HSC93956  Atriplex gmelinii var. gmelinii Gordon Leppig 1999-10-25 1266 Humboldt Eureka, PALCO Marsh 1 Comment
  SEINET4175779  Avena fatua Joseph P. Tracy 1926-5-9 7457 Humboldt Hills near Bridgeville 610 Comment
  SEINET200595 Image available Azolla caroliniana J. P. Tracy 1911-6-25 3245 Humboldt Covering several acres of pool back of Holmes Mill Bucksport northern coast region of California Comment
  HSC933  Azolla microphylla H. E. Parks 1925-6-24 2763 Humboldt Eureka, Comment
  SEINET10668635  Baccharis Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-8-6 Bennett 486 Humboldt Collected by Hwy. 101, N side of Orick. Rocky area, densely forested by river. 30 Comment
  SEINET10938126  Baccharis Mary Susan Taylor 1990-8-22 Taylor 6075 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC1119655  Baccharis glutinosa H. L. Person 1932-7-18 Humboldt Eureka Comment
  JEPS40685  Baccharis pilularis W. L. Jepson Sep 19 1924-Sep 21 1924 10655 Humboldt Garberville Comment
  UC673089  Baccharis pilularis Joseph P. Tracy 1940-10-17 16771 Humboldt Camp Grant, 2-5 mi e of South Fork of Eel River Eel River 45 Comment
  CAS-BOT-BC99989  Balsamorhiza deltoidea Harold E. Parks; Joseph P. Tracy 1935-6-16 11282 Humboldt Buck Mt. Lower NW slopes 792 Comment
  CAS-BOT-BC99990  Balsamorhiza deltoidea Mark Bransom; Daniel Brown; Ron Hildebrandt; Nina Meiselman 1986-4-19 20 Humboldt Across Rt. 299 from White's Bar picnic area; 1/2 mi. up roadbank Comment
  HSC34805  Bellis perennis Dryden 1975-4-21 125 Humboldt Arcata 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
  CAS-BOT-BC106356  Bellis perennis John H. Thomas 1966-3-19 11489 Humboldt Near the M.G. Goethe Grove in Prairie Creek Redwoods State Park near highway 101. Between Eureka and Crescent City. Comment
  SEINET2153801  Bellis perennis K. T. Harper 2002-1 2002 -5 Humboldt Prarrie Creek State Park, near Orick, on Big Tree Trail. Comment
  CAS-BOT-BC48157  Bensoniella oregona R. Bacigalupi; L. Constance; J. P. Tracy; R. Moran; R. L. Rodriguez; S. J. Carlquist 1951-6-14 3410 Humboldt Bald Mountain ridge - in bog, edge of forest at High Prairie, on long high ridge between Mad River and Redwood Creek 1066 Comment
  JEPS26214  Bensoniella oregona Joseph P. Tracy 1939-7-9 16327 Humboldt Snow Camp 1402 Comment
  RSA46859  Berberis aquifolium Doris K. Kildale 1926-6-27 s.n. Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road. 640 Comment
  HSC40904  Berberis aquifolium var. aquifolium J. O. Sawyer 1970-4-24 2192 Humboldt Along FS Rd. 7N04 at Cedar Creek below Groves Prairie Comment
  HSC24105  Berberis aquifolium var. repens J. O. Sawyer 1971-6-17 2388 Humboldt Along trail slopes above Horse Linto Creek 1341 Comment
  UC1198389  Berberis aquifolium var. repens Joseph P. Tracy 1947-7-5 17789 Humboldt ridge top 1 mi w Mud Springs (Trinity Summit) 1158 Comment
  CAS-BOT-BC75680  Berberis nervosa Doris K. Kildale 1928-5-15 6032 Humboldt Bug Creek, Chaparral Mountain. Comment
  SDSU13767  Berberis nervosa Harvey 1938-8-14 2318 Humboldt U.S. 299. Arcata-Willow Creek. Comment
  HSC103115  Berberis repens M. Mesler 2010-9-4 841 Humboldt Along trail E603 (Salmon Summit traihead to Red Cap Lake), about 100 m SE of Baylor Camp. 1677 Comment
  CAS-BOT-BC102109  Bidens cernua Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  RSA1505  Blechnum spicant E. R. Johnson 1929-08 1408 Humboldt Arcata Redwood Park Comment
  UCSB8245  Blechnum spicant Robbins, G. 1936-8-1 Humboldt Near Strong's Station. Comment
  UC1222706  Boechera pauciflora Joseph P. Tracy 1950-8-8 19293 Humboldt head of Croghan Hole Trinity Summit, Croghan Hole Comment
  CHSC110704  Boechera subpinnatifida Dean Wm. Taylor 2004-6-24 19131 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit; Grouse Mountain. 1310 Comment
  HSC3558  Borago officinalis William J. Ferlatte 1963-4-21 15 Humboldt Near 11th and A St., Arcata Comment
  HSC24555  Boschniakia hookeri Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  HSC16673  Boschniakia strobilacea W. M. Lanphere 1937-5-11 Humboldt Hoopa Comment
  CAS-BOT-BC420268  Boykinia occidentalis E. A. McGregor 1921-8-17 s.n. Humboldt on old abandoned road grade s.e. of Orick Comment
  CAS-BOT-BC420277  Boykinia occidentalis J. P. Tracy 1901-6-30 1210 Humboldt Immediate vicinity of Eureka Comment
  HSC20180  Boykinia occidentalis D. E. Anderson 1965-9-5 4095 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC76260  Boykinia occidentalis Teresa Prendusi 1981-7-7 119 Humboldt Near Slate Creek Butte. 1158 Comment
  CAS-BOT-BC420255  Boykinia occidentalis John Thomas Howell 1931-6-17 6722 Humboldt 18 miles n. of Arcata on Redwood Highway Comment
  SEINET12215472  Boykinia occidentalis H. P. Chandler 1901-1 1501 Humboldt Klamath River - North Coast Ranges 427 Comment
  UC527563  Brickellia californica C. B. Wolf 1931-8-31 Humboldt 1 mi above its mouth South Fork of Trinity River ((Sandy Bar Swimming Hole), South Fork of Trinity River) 243 Comment
  CAS-BOT-BC145429  Briza maxima Joseph P. Tracy 1930-7-6 8848 Humboldt Iaqua. 762 Comment
  CAS-BOT-BC145430  Briza maxima P. B. Kennedy 1929-6-13 s.n. Humboldt Etterburg. Comment
  CAS-BOT-BC293762  Briza maxima D. H. Wilken; E. L. Painter 2007-6-4 16739 Humboldt Samoa Dunes, ca. 0.4 km W of US Coast Guard Station, North Spit, Humboldt Bay, SW of Eureka 5 Comment
  SBBG21833  Brodiaea elegans subsp. elegans D. Myrick 1964-7-26 975 Humboldt Hwy 299 ca. 15 mi E of Arcata 762 Comment
  UC15007  Brodiaea elegans subsp. elegans Joseph Burtt Davy 1899-6-11 5464 Humboldt near Elk Prairie Comment
  CAS-BOT-BC484218  Brodiaea elegans subsp. elegans Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  HSC3025  Brodiaea elegans subsp. elegans G. Ghatala 1967-7-27 19 Humboldt Kneeland Comment
  JEPS7634  Brodiaea elegans subsp. elegans Milo S. Baker 1923-7-28 131 c Humboldt near camp on South Fork Yager Creek; North Coast Trip, South Fork Yager Creek Comment
  JEPS7652  Brodiaea elegans subsp. elegans Milo S. Baker 1923-7-28 131 a Humboldt near camp on South Fork Yager Creek Comment
  UC1197747  Brodiaea elegans subsp. elegans Joseph P. Tracy 1924-8-6 6780 Humboldt garden of Joseph P. Tracy, Eureka Comment
  UC1197744  Brodiaea terrestris subsp. terrestris J. P. Tracy 1896-7-4 521 Humboldt near Ft. Humboldt (immediate vicinity of Eureka); Eureka 0 Comment
  SEINET3921829  Bromus carinatus Thomas Nelson, Jane P. Nelson 1976-7-26 3037 Humboldt Along ridge northwest of Lassic Peak (Signal peak).; 0 1707 Comment
  CAS-BOT-BC149566  Bromus carinatus var. carinatus Joseph P. Tracy 1935-5-16 13806 Humboldt Eureka. 60 Comment
  SEINET201049 Image available Bromus carinatus var. carinatus Joseph P. Tracy 1925-7-5 7162 Humboldt High Prairie on Bald Mountain 1067 Comment
  UCD59205  Bromus carinatus var. marginatus A. H. Shunk 1923-7-12 24 Humboldt Briceland. Comment
  UC1103360  Bromus commutatus Joseph P. Tracy 12621 Humboldt 2 to 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  HSC48064  Bromus diandrus Thomas W. Nelson 1978-4-23 3884 Humboldt N of Samoa Comment
  HSC65109  Bromus diandrus J. P. Smith, Steve Selva 1970-6-14 3829 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC9295  Bromus diandrus R. H. Berg 1963-5-12 72 Humboldt King Salmon, S of Eureka. Comment
  SEINET181180 Image available Bromus diandrus Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-7 15066 Humboldt 10 miles south of Squaw Creek. Comment
  CAS-BOT-BC155426  Bromus hordeaceus Doris K Niles 1950-6-1 6 Humboldt Island in Eel River, Niles Field. Comment
  HSC69864  Bromus hordeaceus Thomas W. Nelson 1978-5-28 4087 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC9174  Bromus hordeaceus G. B. Kendall 1965-5-8 44 Humboldt Trinidad State Park Beach. Comment
  CAS-BOT-BC162447  Bromus laevipes L. R. Abrams 1918-6-16 7155 Humboldt Willow Creek. Comment
  UC188940  Bromus secalinus Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5688 Humboldt North Western California, Hoopa Valley Hoopa Valley; North Western California, Hoopa Valley Comment
  CAS-BOT-BC161606  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt French Camp Ridge. 1066 Comment
  CAS-BOT-BC185516  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  UC1145161  Bromus vulgaris Joseph P. Tracy 1937-7-25 15540 Humboldt Trintiy Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trintiy Summit, Little Hors-Linto Creek 1371 Comment
  CAS-BOT-BC273303  Cacaliopsis nardosmia Doris K. Kildale 1926-4-18 1776 Humboldt McLellan [McClellan] Mountain 822 Comment
  OBI36381  Cakile maritima David J. Keil 1983-7-1 17284 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  HSC39983  Cakile maritima Linda M. Barker 1976-9-3 1694 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC9395  Calamagrostis bolanderi R. L. Jarvis 1962-2-9 1 Humboldt Big Lagoon marsh, S of Hwy. 101 0 Comment
  UC1103289  Calamagrostis canadensis Joseph P. Tracy 1935-7-27 14290 Humboldt McKay Prairie Trinity Summit (along creek) 1584 Comment
  CAS-BOT-BC185235  Calamagrostis koelerioides Joseph P. Tracy 1933-8-30 13008 Humboldt Northern Coast Ranges. Horse Mountain. 1371 Comment
  HSC76546  Calamagrostis koelerioides Teresa Prendusi 1981-7-21 282 Humboldt Near Whiteys Peak 1646 Comment
  UC144082  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1909-6-13 2994 Humboldt opposite Blue Lake (in Mad River Valley); Northern Coast Ranges, Mad River Valley 30 Comment
  HSC62990  Callitriche stagnalis David Wheeler 1979-4-22 80 Humboldt Mad River Slough, 1 mi. W of intersection of Mad River Rd. and Iverson Rd. Comment
  CAS-BOT-BC80387  Calocedrus decurrens Doris K. Kildale 1927-5-13 3129 Humboldt Redwood Creek at Berry's 289 Comment
  OBI7412  Calocedrus decurrens H. Wiedman 1966-1 s.n. Humboldt Near the Hoopa Valley Indian Reservation 366 Comment
  UC1198260  Calocedrus decurrens Joseph P. Tracy 1912-8-1 3954 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC496521  Calochortus tolmiei Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka 762 Comment
  CAS-BOT-BC496523  Calochortus tolmiei Mark Bransom; Daniel Brown; Ron Hidebrant; Nina Meiselman 1986-4-18 6 Humboldt 1 1/2 mi. west of Burnt Ranch on Rt. 299; Burnt Ranch Campground; 1584 Comment
  HSC26870  Calochortus tolmiei Clifton Raymond Chesbrough 1973-6-19 94 Humboldt 0.5 mi. N of College Cove along coast Comment
  UC176638  Calochortus vestae Joseph P. Tracy 1913-6-17 4147 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  RSA167194  Calycadenia ciliosa Joseph P. Tracy 1948-9-20 18220 Humboldt Hoopa Valley 91 Comment
  CAS-BOT-BC275364  Calycadenia truncata var. truncata G. D. Carr 1974-9-12 784 Humboldt 5.3 miles SW of Somes Bar, 2.8 miles NE of Orleans on Highway 96 214 Comment
  UCR178929  Calypso bulbosa var. occidentalis R. G. Swinney 1968-4-5 241 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  UCD138885  Calypso bulbosa var. occidentalis J. C. Arthur 1934-3-20 s.n. Humboldt exact location unknown. Comment
  HSC44594  Calyptridium monospermum Brad Klipfel 1973-7-15 190 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC97630  Calyptridium monospermum Cara Witte 2007-6-5 214 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  CDA38662  Calystegia silvatica David Juliano 2010-6-17 PDR# 1535024 Humboldt Eureka. 0 Comment
  HSC6363  Calystegia soldanella J. W. Johnson 1962-6-4 1413 Humboldt Arcata, W.M. Lanphere Farm, Samoa peninsula Comment
  RSA337437  Calystegia soldanella R. F. Thorne, P. C. Everett, K. Thorne 1965-8-9 35307 Humboldt Big Lagoon. 3 Comment
  UC584209  Calystegia soldanella David D. Keck and J. Clausen 1935-6-16 3384 Humboldt mouth of Little River Comment
  CDA39887  Calystegia soldanella B. F. Kemp May 1958 1202 -58 Humboldt Mouth of Mad River. 0 Comment
  RSA0116954  Camassia leichtlinii subsp. suksdorfii Frank W. Peirson 1923-7-11 3681 Humboldt 7 miles north of Arcata. Comment
  HSC25217  Camissonia cheiranthifolia Norman Dennis 1965-6-8 104 Humboldt Samoa Peninsula along the W side of Humboldt Bay Comment
  RSA79376  Camissonia contorta E. K. Balls, L. W. Lenz 1952-5-12 17202 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  UC1196947  Camissonia contorta Joseph P. Tracy 1939-4-29 16244 Humboldt mouth of Slate Cr. Klamath River 121 Comment
  RSA120762  Campanula prenanthoides S. S. Tillett 1956-7-6 612 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 488 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
  SEINET10462967  Campanula prenanthoides Stephen S. Tillett 1956-7-6 Tillett 612 Humboldt Area cleared by logging and fire, south slope along Bar Shanty Road, 5 miles from Orleans 488 Comment
  SEINET10462968  Campanula prenanthoides James P. Smith 1977-7-3 Smith, Jr. 9236 Humboldt Six Rivers National Forest; on the road to Onion Lake, 4.7 miles from it junction with State Route 36. T10N R4E Sec. 11 610 Comment
  SEINET10873297  Campanula scouleri Griswold 1979-7-11 GRISWOLD 6978 Humboldt NEAR SNOW CAMP, IAQUA BUTTES QUAD. CLOSE TO THE TOWN OF WILLOW CR. EVERGREEN CONIFER FOREST, LAKE SIDE 1393 Comment
  UC602559  Campanula scouleri Joseph P. Tracy 1926-6-27 7691 Humboldt Horse Mountain 1219 Comment
  UC160970  Capsella bursa-pastoris Joseph P. Tracy 1911-5-21 3186 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC37020  Capsella bursa-pastoris Doris K. Kildale 1926-8-29 2591 Humboldt Van Duzen River, near Strongs Station. Comment
  JEPS79826  Cardamine angulata Joseph P. Tracy 1928-4-29 8425 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC37251  Cardamine breweri Joseph P. Tracy 1906-4-29 2432 Humboldt Northern Coast Region. Region about Humboldt Bay. South slope of Humboldt Hill. 152 Comment
  CAS-BOT-BC37418  Cardamine californica LeRoy Ellsworth Detling 1935-4-20 1642 Humboldt Lansdale Redwood Grove. Comment
  HSC45593  Cardamine californica Diane L. Reed 1978-4-22 38 Humboldt Trinidad Head Comment
  HSC70563  Cardamine californica M. A. Baker 1980-7-19 3032 Humboldt Near Bret Hole. 1814 Comment
  UC1199200  Cardamine californica Joseph P. Tracy 1924-2-24 6603 Humboldt near McKee's Mill (South Fork Eel River); Northern Coast Ranges, South Fork Eel River 60 Comment
Read comments
Jul 25 2012
  SEINET11993905  Cardamine californica J. P. Tracy 1950-1 18651 Humboldt on Redwood House Road, S of Redwood House 1 mi, on Yager Slope (head of South Yager Creek) Comment
  CAS-BOT-BC384768  Cardionema ramosissimum Ira L. Wiggins 1930-7-11 4687 a Humboldt Sand dunes near Samoa Comment
  SD117463  Cardionema ramosissimum Robert F. Thorne 1974-7-29 45077 Humboldt Samoa dunes. Comment
  SEINET11861099  Carduus pycnocephalus J. P. Tracy 1947-6-8 17703 Humboldt 0.5 mi W of town, vicinity of Carlotta 30 Comment
  HSC79422  Carduus pycnocephalus subsp. pycnocephalus Kenneth Clark 1980-3-22 522 Humboldt Above Deadman's Gulch 107 Comment
  CDA6909  Carduus tenuiflorus J. P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mountain. Comment
  CAS-BOT-BC17793  Carex amplifolia Joseph Prince Tracy 1935-6-23 13986 Humboldt French Camp Ridge. 1066 Comment
  RSA167273  Carex amplifolia Joseph P. Tracy 1948-9-5 18193 Humboldt Trinity Summit, head of Little Hors-Linto Creek, less than one mile south of Grizzly Camp. 1341 Comment
  HSC95660  Carex arcta Juha Pykala, D. H. Norris 1987-6-5 1436 Humboldt E of Maple Creek, Lake Prairie 1052 Comment
  UC562628  Carex athrostachya Joseph P. Tracy 1904-7-18 13426 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC562630  Carex athrostachya Joseph P. Tracy 1935-7-27 14306 Humboldt Trinity Summit, open places at McKay Prairie 1584 Comment
  CAS-BOT-BC18076  Carex athrostachya Joseph Prince Tracy 1935-7-23 14140 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  SEINET11629975  Carex athrostachya J. P. Tracy 1950-1 18989 Humboldt NW slope of Buck Mountain, Burr Valley 1067 Comment
  CAS-BOT-BC19216  Carex barbarae Henry M. Pollard 1948-7-29 s.n. Humboldt Near Woodson Mine - Near Orleans. Comment
  UC562288  Carex barbarae Joseph P. Tracy 1932-6-14 10152 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC1103620  Carex barbarae Joseph P. Tracy 1935-5-19 13808 Humboldt 2 mi N of Myers (South Fork of Eel River) 91 Comment
  HSC72698  Carex brainerdii Gail Newton 1980-6-24 571 Humboldt Near Ladder Rock 1570 Comment
  UC1103068  Carex brainerdii Joseph P. Tracy 1942-6-23 17247 Humboldt near Box Camp; Trinity Summit 1524 Comment
  SEINET10646885  Carex buxbaumii Robert F. Thorne 1965-9-8 Thorne 35293 Humboldt Big Lagoon. 3 Comment
  JEPS26006  Carex canescens Joseph P. Tracy 1939-7-9 16318 Humboldt at Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  HSC71669  Carex concinnoides Gail Newton 1980-6-16 200 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC19961  Carex exsiccata Joseph Prince Tracy 1927-7-17 8277 Humboldt North Coast Ranges. Three Cabins; grassy slopes on lower western foothills of Chaparral Mountain. 457 Comment
  UC562648  Carex feta Joseph P. Tracy 1935-5-25 13838 Humboldt Fort Seward 106 Comment
  HSC70468  Carex fracta Gail Newton 1980-7-20 1635 Humboldt Near Bell Swamps 1426 Comment
  UC1152058  Carex fracta Joseph P. Tracy 1949-8-26 18515 Humboldt 6 mi NE of Hawkins Bar (meadow at Fern Creek, Happy Camp Mountain); Trinity Summit Range 1219 Comment
  CAS-BOT-BC28420  Carex gracilior Joseph Prince Tracy 1938-6-9 15878 Humboldt Dobbyn Creek 152 Comment
  UC1103591  Carex gynodynama Joseph P. Tracy 1938-6-11 15893 Humboldt Vicinity of Carlotta. Comment
  CAS-BOT-BC22313  Carex harfordii Joseph Prince Tracy 1935-6-8 13936 Humboldt Eureka. 60 Comment
  UC1103098  Carex harfordii Joseph P. Tracy 1935-6-8 13939 Humboldt at Eureka Northern Coast Ranges 0 Comment
  HSC76807  Carex harfordii L. P. Janeway 1982-6-17 10 Humboldt 305 Comment
  CAS-BOT-BC21755  Carex hassei Joseph Prince Tracy 1927-4-23 7917 Humboldt Big Lagoon. 6 Comment
  HSC103083  Carex hassei Sydney Carothers 2014-6-22 25 Humboldt Six Rivers National Forest, Lassics Botanical Area. Below trail to Mount Lassic. 1707 Comment
  UC249765  Carex hendersonii Joseph P. Tracy 1923-6-20 6331 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  CHSC90271  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8544 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  CHSC98325  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1982-7-9 7082 Humboldt North Coast Ranges. Junction of Forest Service Road 1S07 and road to Mt. Lassic (Signal Peak). 1767 Comment
  HSC102205  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1120 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  UC562250  Carex lenticularis var. impressa Joseph P. Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC249733  Carex lenticularis var. limnophila Joseph P. Tracy 1923-6-17 6275 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UC562633  Carex leporina Joseph P. Tracy 1936-6-28 15014 Humboldt near Murphy Meadow (Bald Mountain); Bald Mountain 1066 Comment
  SEINET7565140 Image available Carex leptopoda L. P. Janeway 2003-7-27 7929 Humboldt North Coast. On ridge between Stone Lagoon, Dry Lagoon and the beach (Sharp Point). Rodgers Peak 7.5' quad. 823 Comment
  RSA122772  Carex lyngbyei H. S. Yates 1936-6-23 s.n. Humboldt 1 mile west of Bayside; sea level 0 Comment
  HSC103071  Carex microptera Sydney Carothers 2014-6-12 10 Humboldt Six Rivers National Forest, Lassics Botanical Area, Red Lassic. Near upper pond and rustic camp site. 1706 Comment
  HSC63874  Carex microptera M. A. Baker 1979-6-27 921 Humboldt Edge of Hoopa Indian Reservation Comment
  HSC103353  Carex nervina Thomas W. Nelson, Jane Nelson 1987-6-11 8604 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  UCR40087  Carex nudata L. P. Janeway 1983-7-23 435 Humboldt Blue Lake Q., North Fork of Mad River at the old Hwy 299 bridge (near the new bridge). 40 Comment
  CAS-BOT-BC119384  Carex obnupta LeRoy Abrams 1916-7-18 6083 Humboldt Arcata to Trinidad. Comment
  HSC40257  Carex obnupta Linda M. Barker 1976-4-30 1421 Humboldt 3 mi. W of Arcata Comment
  HSC7068  Carex obnupta R. E. Hafenfeld 1965-5-9 18 Humboldt Near mouth of Squashan Creek Comment
  CAS-BOT-BC119380  Carex obnupta Frank Warrington Peirson 1941-7-28 13108 Humboldt Patrick Point State Park Comment
  HSC7070  Carex obnupta J. W. Johnson 1961-8-17 1055 Humboldt Arcata, Hollow 10, W.M. Lanphere Farm, Samoa Peninsula. Comment
  JEPS80020  Carex obnupta Joseph P. Tracy 1912-6-16 3701 Humboldt above edge of salt marsh at Hookton Northern Coast Region, Humboldt Bay, Hookton 0 Comment
  JEPS79854  Carex pachystachya Joseph P. Tracy 1932-7-14 10548 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC201994  Carex pachystachya Joseph P. Tracy 1918-7-5 5017 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC249810  Carex pachystachya Joseph P. Tracy 1923-6-17 6278 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC709399  Carex pachystachya Joseph P. Tracy 1938-7-18 16083 Humboldt Eureka 30 Comment
  CAS-BOT-BC119222  Carex pachystachya Harold Ernest Parks; Joseph Prince Tracy 1935-6-16 11271 Humboldt Buck Mt. Lower NW slope. 792 Comment
  UC562665  Carex pachystachya Joseph P. Tracy 1932-6-19 10242 Humboldt opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 762 Comment
  CAS-BOT-BC118004  Carex rossii Joseph Prince Tracy 1949-5-8 18296 Humboldt Carlotta. Open flat by old Strong's District School House, 5 mi E of town. 60 Comment
  HSC75279  Carex rostrata J. O. Sawyer, D. A. Thornburgh 1980-9-9 4076 Humboldt Mill Creek Lake and surrounding meadows Comment
  CAS-BOT-BC117365  Carex stipata var. stipata Joseph Prince Tracy 1931-5-17 9422 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  JEPS79863  Carex subbracteata Joseph P. Tracy 1916-5-31 4695 Humboldt along Eel R. from S. Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  UC196570  Carex subbracteata Joseph P. Tracy 1916-5-31 4695 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges 60 Comment
  CAS-BOT-BC116680  Carex subfusca Joseph Prince Tracy 1936-6-17 14954 Humboldt Buck Mountain, lower foothills of its NW slope. 762 Comment
  SEINET3910196  Carex tracyi Thomas W. Nelson, Jane P. Nelson 1978-6-10 4418 Humboldt Eureka Quad. Second growth redwood forest behind Eureka Seventh Day Advent Church on F St.; 0 61 Comment
  UC585640  Carex tumulicola Joseph P. Tracy 1937-6-20 15338 Humboldt 10 mi up stream from mouth Bear River 152 Comment
  JEPS26002  Carex unilateralis Joseph P. Tracy 1938-7-5 16007 Humboldt old Strongs Distrcict School House, 5 miles E of town 45 Comment
  UC1103610  Carex utriculata Joseph P. Tracy 1937-8-12 15636 Humboldt Snow Camp 1402 Comment
  UC709397  Carex vesicaria var. major Joseph P. Tracy 1938-9-25 16170 Humboldt Lake Prairie Bald Mountain 1066 Comment
  SEINET201052  Carex viridula Joseph P. Tracy 1934-7-30 13505 Humboldt Along coast in front of South End of Stone Lagoon. Dry Lagoon. 3 Comment
  CDA33171  Carex viridula subsp. viridula Gordon Leppig 1999-10-3 1258 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  POM283642  Castilleja Lyman Benson 1929-7-19 1852 Humboldt Mouth of Matole [Mattole] River. Comment
  RSA167257  Castilleja affinis Joseph P. Tracy 1950-6-15 18799 Humboldt Mail Ridge, north of Harris 7 miles Comment
  HSC26884  Castilleja affinis subsp. litoralis Clifton Raymond Chesbrough 1973-6-19 102 Humboldt .5 mi. N of College Cove along the coast Comment
  UC582580  Castilleja affinis subsp. litoralis Joseph P. Tracy 1926-6-18 7606 Humboldt e of Fields Landing; Humboldt Hill 152 Comment
  HSC90264  Castilleja ambigua subsp. humboldtiensis Jean Hanson 1980-5-24 69 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of Island, SW shore, 25 ft. from high tide line Comment
  UC535764  Castilleja applegatei subsp. martinii Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  CAS-BOT-BC255520  Castilleja applegatei var. pinetorum Clarence R. Quick 1959-7-24 59 -32 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  CAS-BOT-BC255524  Castilleja applegatei var. pinetorum Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CHSC95387  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Humboldt County. Manila Dunes ACEC. 3 Comment
  CAS-BOT-BC241278  Castilleja latifolia Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick Comment
  HSC56082  Castilleja miniata G. L. Clifton, Griswold 1979-7-31 11766 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC35593  Castilleja pruinosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2004 Humboldt French Camp, Bald Hills. Comment
  HSC55597  Castilleja pruinosa Walter Overton, Marvin Butler 1979-7-23 9410 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC902244  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18342 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  JEPS13340  Castilleja rubicundula subsp. lithospermoides Parks and Tracy 1930-5-25 796 Humboldt Laribee Valley 792 Comment
  HSC41322  Ceanothus arcuatus Brad Klipfel 1974-9-2 525 Humboldt Horse Mtn. Comment
  SEINET10805177  Ceanothus cuneatus var. cuneatus Dylan O. Burge 2009-5-11 Burge 1154 c Humboldt Willow Creek watershed, north-west slope of Brush Mountain, west of entrance to C.R.R. Brown and Sons Quarry, roadside on SR 299, 6.8 road miles (10.9 km) east of Berry Summit, 4.0 km 260 deg. (True) WSW of Willow Creek. 410 Comment
  UC1193330  Ceanothus cuneatus var. cuneatus K. Cuff Sep 1950 125 Humboldt 6 mi nw Garberville (rocky ridgecrest of Bear Butte); Quad. 29C1 762 Comment
  JEPS82328  Ceanothus gloriosus var. exaltatus Roger Raiche 1983-7-18 30530 Humboldt 2.4 mi n rd to Shelter Cove (along King Peak Rd); King Range Comment
  CAS-BOT-BC50053  Ceanothus incanus Joseph P. Tracy 1935-5-25 13824 Humboldt Larrabee Creek, near Bosworth's 304 Comment
  HSC37053  Ceanothus incanus R. Sutherland 1975-5-26 1 .26575 Humboldt 305 Comment
  HSC100624  Ceanothus integerrimus Carl C. Marshall Jun 1886 262 Humboldt Bald Hills. Comment
  UC166023  Ceanothus integerrimus Joseph P. Tracy 1911-7-7 3427 Humboldt ridge to n Willow Creek (between Willow and Campbell Creek, near summit.); Brannan Mtn., Northern Coast Ranges 1219 Comment
  CAS-BOT-BC50476  Ceanothus oliganthus J. R. McFarland 1997-4-10 s.n. Humboldt King Range National Conservation Area - 3.7 miles north on King Range Road from Shelter Cove Road. 601 Comment
  UC1039820  Ceanothus oliganthus var. sorediatus J. I. Mallory 1956-4-26 125 Humboldt Long Ridge Quad. 28-A-3 (Humboldt base and Mer.) 762 Comment
  HSC101658  Ceanothus parryi J. P. Smith, J. O. Sawyer 2011-4-23 13118 Humboldt Along Salmon Creek Rd., 4.6 miles from its junction with U.S. 101. 290 Comment
  UC1502108  Ceanothus parryi R. Sutherland 1975-4-19 A 4 .19.4.75 Humboldt Whitethorn Road at Van Arken Creek; Briceland Quad., Van Arken Creek 298 Comment
  UC203997  Ceanothus parryi Joseph P. Tracy 1918-7-6 5045 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  HSC41241  Ceanothus pumilus Brad Klipfel 1974-5-27 380 Humboldt Horse Mtn. Comment
  BLMAR660  Ceanothus thyrsiflorus Andrew Maguire 2012-5-21 660 Humboldt King range, Smith-Etter road 320 Comment
  CAS-BOT-BC52982  Ceanothus thyrsiflorus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC52994  Ceanothus thyrsiflorus C. Hart Merriam 1920-8-29 s.n. Humboldt Lower Eel River between Dyerville and Pepperwood Comment
  CAS-BOT-BC52996  Ceanothus thyrsiflorus C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC12358  Ceanothus thyrsiflorus C. Kline 1970-11-28 82 Humboldt Hwy 101, 1 mi S of Arcata Comment
  UC1193280  Ceanothus thyrsiflorus R. H. Neuns 1950-10-17 142 Humboldt Bear Creek Road 6 mi n Shelter Cove; Quad. 28D4, Bear Creek Rd, n of Shelter Cove 609 Comment
  SDSU10422  Ceanothus velutinus D. F. Howe 1961-8-2 3122 Humboldt 27.0 m iles east of Orick of Bald Mtn. Road. 762 Comment
  UC1199120  Centaurea X moncktonii Joseph P. Tracy 1933-8-22 12973 Humboldt at Eureka Eureka 60 Comment
  UC673087  Centaurea calcitrapa Joseph P. Tracy 1940-10-17 16760 Humboldt near Dyerville (South Fork Station) 45 Comment
  CDA7303  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 Comment
  UC673086  Centaurea solstitialis Joseph P. Tracy 1940-10-17 16759 Humboldt near Dyerville (South Fork Station) 45 Comment
  UC566944  Centaurium muehlenbergii H. L. Mason 1928-7-14 4903 Humboldt near Garberville; East Fork of Eel River Comment
  JEPS46931  Centaurium muehlenbergii Joseph P. Tracy 1931-8-9 9610 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  RSA144572  Centaurium muehlenbergii Peter H. Raven, Richard Snow 1958-7-20 13629 Humboldt Along Friday Ridge Road to Grouse Mountain, 1.5 miles west of junction with United States Highway 299. Comment
  RSA391522  Centaurium muehlenbergii M. V. Hood 1940-08 s.n. Humboldt Eel River - near Redway. 457 Comment
  UC203958  Centunculus minimus Joseph P. Tracy 1918-7-5 5019 Humboldt Northern Coast Ranges, White Thorn Valley White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  UC8230  Cerastium arvense Mrs. M. H. Manning Apr. 1899 Humboldt Hoopa Valley Comment
  UC8223  Cerastium arvense H. N. Bolander 1867-1 6520 Humboldt E. Fork Eel R. Comment
  CAS-BOT-BC388225  Cerastium glomeratum Alice Eastwood 1907-4-21 15 Humboldt Port Trinidad Comment
  UC33525  Cercis occidentalis Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  HSC97628  Chaenactis douglasii var. douglasii Cara Witte 2007-6-12 241 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1311 Comment
  UC582764  Chaenactis douglasii var. douglasii Joseph P. Tracy 1933-7-25 12877 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC44337  Chamaecyparis lawsoniana Brad Klipfel 1975-6-17 674 Humboldt Horse Mtn. Comment
  HSC56952  Chamaecyparis lawsoniana Overton, Butler 1979-7-23 9456 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  RSA44511  Cheilanthes gracillima Henry M. Pollard 1947-9-1 s.n. Humboldt Peak of Somes Mountain, near Orleans 1524 Comment
  CAS-BOT-BC451500  Chimaphila umbellata Doris K. Kildale 1928-4-29 5962 Humboldt Bald Mountain Comment
  HSC54228  Chimaphila umbellata Griswold, Butler 1979-7-12 7294 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC73778  Chimaphila umbellata M. A. Baker 1980-6-7 1771 Humboldt Near Brush Mtn. 1128 Comment
  SJSU913A  Chimaphila umbellata J. W. Tilden 1946-6-20 1011 Humboldt Bluff Cr c. 1.5 mi above Klamath R Comment
  UC1197595  Chimaphila umbellata Joseph P. Tracy 1916-6-25 4741 Humboldt ridge between Little River and Redwood Creek; Northern Coast Ranges 304 Comment
  UC1225859  Chlorogalum pomeridianum var. pomeridianum Joseph P. Tracy 1946-7-7 17611 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC1197669  Chlorogalum pomeridianum var. pomeridianum Joseph P. Tracy 1912-7-4 3726 Humboldt hillside near mouth of Yager Creek (near Hydesville); Northern Coast Region 60 Comment
  POM351629  Chrysanthemum leucanthemum B. C. Templeton 1964-6-13 10185 Humboldt North of Patrick's Point on Hwy. 101 Comment
  UCD127358  Cicuta douglasii Bellue Goodwin 1932-9-28 s.n. Humboldt Arcata. Comment
  HSC24389  Circaea alpina subsp. pacifica J. O. Sawyer 1970-6-24 2254 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  SEINET5506147 Image available Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 mi E of Berry Summit Comment
  UC249821  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 B Humboldt near Ruby Creek (on the Willow Creek Highway); Northern Coast Ranges 609 Comment
  UC249822  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 A Humboldt near Ruby Creek (on the Willow Creek Highway); Northern Coast Ranges 609 Comment
  CAS-BOT-BC285527  Cirsium occidentale var. candidissimum Doris K. Kildale 1926-5-2 1999 Humboldt Kneeland Prairie - summit 853 Comment
  UC1223062  Cirsium remotifolium Joseph P. Tracy 1941-8-12 16976 Humboldt 2 mi s of town of Field's Landing 6 Comment
  HSC5385  Cirsium vulgare J. W. Johnson 1961-9-10 1113 Humboldt Arcata, S of Dune 3 N, Christenson Farm, Samoa Pennisula Comment
  RSA297180  Cirsium vulgare Lincoln Constance 1934-6-11 853 Humboldt South Fork Eel River; Lower Look Prairie and Bull Creek Road to Dyerville Comment
  CAS-BOT-BC228800  Cistanthe umbellata Joseph P. Tracy 1930-7-16 8946 Humboldt South Fork Mountain; along summit near Blake Lookout 1706 Comment
  SDSU8657  Clarkia amoena Harvey 1939-7-16 2429 Humboldt US 101 Comment
  UC1196989  Clarkia amoena Joseph P. Tracy 1939-8-5 16396 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC668237  Clarkia amoena subsp. amoena Joseph P. Tracy 1938-6-17 15957 Humboldt s of point Cape Mendocino (near ocean shore) 3 Comment
  RSA226613  Clarkia amoena subsp. amoena Norman Dennis 1965-6-19 133 Humboldt 1/4 mile S and 1 mile E of the jct of Barry Ridge Road and the Eureka-Bridgeville country road, along Ashfield Ridge Road, 5 miles SE of Kneeland. 793 Comment
  HSC48148  Clarkia amoena subsp. huntiana Thomas W. Nelson, Jane P. Nelson 1978-7-3 4410 Humboldt Along Hwy. 36, 100 m E of Dinsmore 610 Comment
  SDSU8656  Clarkia amoena subsp. huntiana D. F. Howe 1964-8-10 3951 Humboldt 7.5 miles from Ferndale on road to Petrolia. Comment
  HSC32093  Clarkia concinna subsp. concinna D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5700 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC169900  Clarkia concinna subsp. concinna Mrs. M. H. Manning 1901-1 75 Humboldt near Hupa Comment
  UC153945  Clarkia davyi Joseph P. Tracy 1910-4-24 3127 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC162342  Clarkia davyi Joseph P. Tracy 1911-6-25 3256 Humboldt bluffs back of Bucksport (region about Humboldt Bay); Northern Coast Region 0 Comment
  SBBG4973  Clarkia gracilis H. and M. Dearing 1939-6-24 3701 Humboldt E of Bridgeville Comment
  JEPS43694  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1936-6-10 14935 Humboldt mountain slopes w of mouth South Fork Trinity River 609 Comment
  UC562524  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1936-6-10 14935 Humboldt w of mouth South Fork Trinity River 609 Comment
  UC902179  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1944-7-3 17484 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS43685  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1931-6-28 9597 Humboldt lower foothills of nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  HSC32089  Clarkia purpurea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5701 Humboldt McKeown Ranch, N of Dinsmore Comment
  POM72830  Clarkia purpurea subsp. purpurea P. A. Munz 1925-6-20 9886 Humboldt Garberville Comment
  UC183683  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1913-6-20 4244 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC172512  Clarkia purpurea subsp. quadrivulnera Mrs. H. C. Cantelow 1940-7-6 4034 Humboldt Near Dinsmore's Comment
  UC180230  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1914-7-5 4569 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA256474  Clarkia rhomboidea Joseph P. Tracy 1937-7-24 15527 Humboldt Trinity Summit, 2 miles SE of Devil s Hole 1524 Comment
  HSC74287  Claytonia exigua subsp. exigua M. A. Baker 1980-7-11 2779 Humboldt Near Red Mtn. 1341 Comment
  JEPS43314  Claytonia exigua subsp. exigua W. L. Jepson 1902-6-20 1903 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  HSC67374  Claytonia exigua subsp. glauca Thomas W. Nelson, James Nelson 1980-6-10 5414 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  HSC96292  Claytonia parviflora subsp. parviflora J. Breton, A. Livingston 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  HSC101982  Claytonia perfoliata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 879 Humboldt Patterson Meadows 1566 Comment
  SEINET6903113  Claytonia perfoliata Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  JEPS43187  Claytonia perfoliata subsp. mexicana Joseph P. Tracy 1916-4-30 4682 Humboldt Table Bluff Northern Coast Ranges, Humboldt Bay (aroung Humboldt Bay) 152 Comment
  CAS-BOT-BC440092  Claytonia perfoliata subsp. perfoliata J. M. Miller 1974-6-2 361 Humboldt French Camp Ridge; on Bald Hills Rd. 18.6 mi. SE. of the Lady Bird Johnson Grove parking lot. Adjacent to Bald Hills Rd. Approximate vicinity of French Camp 822 Comment
  HSC39958  Claytonia rubra subsp. depressa Linda M. Barker 1976-4-13 1378 Humboldt 3 mi. W of Arcata Comment
  HSC70226  Claytonia rubra subsp. rubra M. A. Baker 1980-6-8 1888 Humboldt Near Buck Flat. 1554 Comment
  UC672998  Claytonia rubra subsp. rubra Joseph P. Tracy 1933-6-13 12579 Humboldt near summit road from Hoopa westward to Bair's; Hoopa Mountain 1066 Comment
  HSC17734  Claytonia sibirica Harvey Doerksen 1962-5-4 1 Humboldt 1/4 mi. W of Korbel on S side of Mad River Comment
  HSC64327  Claytonia sibirica J. P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET190447  Claytonia sibirica J. P. Tracy 1932-7-14 10536 Humboldt Trinity Summit Corral Prairie 1585 Comment
  UC83824  Claytonia sibirica Harley P. Chandler May 1901 1090 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  UCR122364  Claytonia sibirica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6975 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  UCR86959  Claytonia sibirica Walter Wisura 1993-5-9 4909 Humboldt Northwest; Hwy 299, 5.7 mi west of Willow Creek at E-fork camp ground 730 Comment
  HSC34812  Claytonia sibirica David Peters 1975-4-9 4 Humboldt 0.1 mi. W of Plunkett Rd. on Jacoby Creek Rd. Comment
  SEINET11942406  Claytonia sibirica H. P. Chandler 1901-1 1264 Humboldt North Coast Ranges, Redwood Belt 152 Comment
  UC1028307  Claytonia sibirica George B. Rossbach 1955-6-8 263 Humboldt Prairie Creek Redwoods State Park (Route 101) Comment
  UCSB12091  Clintonia andrewsiana Dearing, Hugh; Dearing, Margaret 1931-5-16 Humboldt Weott Comment
  SEINET3991733  Clintonia andrewsiana Unknown 1914-5-17 Humboldt Freshwater Creek 305 Comment
  UC1222545  Clintonia uniflora Joseph P. Tracy 1951-6-26 19556 Humboldt Snow Camp 1402 Comment
  UC147866  Collinsia grandiflora Joseph P. Tracy 1908-6-8 2638 Humboldt Kneeland Prairie; Northern Coast Ranges; Kneeland Prairie 762 Comment
  UC177178  Collinsia grandiflora Joseph P. Tracy 1913-6-14 4135 Humboldt opposite Buck Mtn (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  HSC32485  Collinsia linearis Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  JEPS6199  Collinsia linearis Joseph P. Tracy 1932-7-12 10439 Humboldt Corral Prairie, open places Corral Prairie; Trinity Summit 1584 Comment
  UC582453  Collinsia linearis Joseph P. Tracy 1933-7-25 12836 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS13757  Collinsia linearis Frank W. Gould 1939-5-30 831 Humboldt Horse Mtn 762 Comment
  UC1196753  Collinsia linearis Joseph P. Tracy 1935-7-30 14376 Humboldt near top of Salmon Summit Salmon Summit 2072 Comment
  UC169873  Collinsia parviflora V. Rattan Humboldt Hoopa valley Comment
  HSC48636  Collinsia parviflora Mark Flippo 1978-5-20 89 Humboldt USFS Rd. 8N10 Comment
  JEPS6349  Collinsia sparsiflora var. collina Joseph P. Tracy 1916-5-2 4685 Humboldt At Eureka, from lower slopes of Buck Mountain. 762 Comment
  JEPS7054  Collinsia torreyi var. wrightii Joseph P. Tracy 1930-7-17 9014 Humboldt near McKay Camp; South Fork Mtn 1676 Comment
  UC1222736  Collomia grandiflora Joseph P. Tracy 1950-7-6 19029 Humboldt 3 mi s Burr Valley; Sprosten's Place 1066 Comment
  HSC45589  Collomia heterophylla Diane L. Reed 1978-5-27 137 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC70375  Collomia heterophylla M. A. Baker 1980-6-7 1780 Humboldt Near Brush Mtn. 287 Comment
  RSA120682  Collomia heterophylla S. S. Tillett 1956-7-6 610 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 488 Comment
  UC1197837  Collomia heterophylla Joseph P. Tracy 1947-7-5 17791 Humboldt ridge top one mi w Mud Springs; Trinity Summit 1158 Comment
  UC535757  Collomia heterophylla Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  SEINET6969874  Collomia heterophylla Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1197862  Collomia tinctoria Joseph P. Tracy Jul 16 1930-Jul 19 1930 8965 Humboldt openings in fir forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC73732  Collomia tracyi M. A. Baker 1980-7-19 3001 Humboldt Near Bret Hole. 1814 Comment
  UC1197866  Collomia tracyi Joseph P. Tracy 1946-6-15 17566 Humboldt broken rock talus on lower slopes Horse Mountain 1066 Comment
  HSC67014  Conyza canadensis J. P. Smith 1971-10-9 4988 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC165028  Conyza canadensis J. P. Tracy 1906-8-18 2540 Humboldt immediate vicinity Eureka 0 Comment
  HSC104326  Coptis laciniata James Regan, Humboldt Redwood Co., LLC 2009-4-1 31 Humboldt Snow Camp Rd., Bald Mtn. Creek Comment
  CAS-BOT-BC133715  Corallorhiza Doris Kildale Gillespie 1931-6-7 10659 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  HSC44517  Corallorhiza maculata Brad Klipfel 1973-7-1 125 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196454  Corallorhiza mertensiana Joseph P. Tracy 1947-7-5 17826 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC44843  Corallorhiza mertensiana Thomas W. Nelson, Jane P. Nelson 1977-7-1 3566 Humboldt N side of ridge between Bear Creek & Blanket Creek 1524 Comment
  HSC90639  Cordylanthus maritimus subsp. palustris Gail Newton 1983-8-21 3855 Humboldt Elk River Wildlife Area, Eureka. Comment
  JEPS21706  Cordylanthus maritimus subsp. palustris Malcolm A. Nobs, S. Galen Smith 1949-8-3 1200 Humboldt 2 mi n Eureka (salt marshes bordering Humboldt Bay) Comment
  JEPS50770  Cordylanthus maritimus subsp. palustris Rimo Bacigalupi 1967-8-13 9307 Humboldt in salicornia salt marsh w of Northwest Pacific Railroad tracks and 1/8 mi n of Arcata Redwood Company plant 4 mi n Eureka (w shore of Arcata Bay); Arcata Bay Comment
  HSC96783  Cordyline australis Gordon Leppig 2004-6-8 2165 Humboldt Eureka, abandoned railroad tracks at Second St. and Commercial Ave. 2 Comment
  CAS-BOT-BC287184  Coreopsis tinctoria Henry M. Pollard 1948-8-12 s.n. Humboldt Near mouth of Perch Creek, near Orleans Comment
  UC1223037  Corethrogyne filaginifolia J. P. Tracy 1950-6-18 18764 Humboldt 1 mi w of town Petrolia Comment
  UC1601151  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  CAS-BOT-BC212015  Cornus nuttallii Doris K. Kildale 1928-5-19 5152 Humboldt Chalk Mountain Comment
  HSC6419  Cornus nuttallii J. Sandborg, F. Sandborg Jun 1968 32 Humboldt Bluff Creek near Notice Creek. Comment
  CAS-BOT-BC210537  Cornus sessilis L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  HSC6422  Cornus sessilis J. P. Tracy 1941-3-26 16846 Humboldt Four-Mile Creek near mouth of S Fork Trinity River. 610 Comment
  RSA394654  Cornus sessilis Jane Turner, Francis M. Ball, B. L. Turner 1962-7-10 1144 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  UC1167522  Cornus sessilis J. A. Delapp 1959-9-2 51 Humboldt 6 3/4 mi. n.-n.e. Schoolhouse Peak (near Big Prairie, V-Plot #81, <3N-95>); Quad. 11C-1 685 Comment
  HSC12552  Coronopus didymus D. La Conte 1970-10-11 18 Humboldt Comment
  UC1197932  Corylus californica Joseph P. Tracy 1923-8-19 6538 Humboldt Lawrence Creek near Kneeland Prairie Comment
  CAS-BOT-BC180306  Corylus cornuta subsp. californica H. E. McMinn 1922-8-4 332 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC180314  Corylus cornuta subsp. californica L. B. Kildale 1927-7-10 3734 Humboldt Gans Prairie - Bold Hills road Comment
  CAS-BOT-BC180310  Corylus cornuta subsp. californica L. B. Kildale 1928-2-19 4275 Humboldt 2 miles N of Redwood lighway Comment
  RSA152313  Corylus cornuta var. californica Joseph P. Tracy 1946-8-25 17639 Humboldt Table Bluff, along Hookton road. 9 Comment
  SEINET200866  Cotula australis J. P. Tracy 1900-5-26 804 Humboldt Immediate Vicinity of Eureka, Comment
  UC1223034  Cotula australis J. P. Tracy 1943-4-10 17414 Humboldt Eureka Comment
  SEINET11859878  Cotula australis J. P. Tracy 1943-4-10 17414 Humboldt Eureka Comment
  CHSC19513  Cotula coronopifolia J. F. Knezevich 1968-5-14 431 Humboldt Collected 13 miles south of Ferndale at Cape Mendocino. Comment
  UCD130911  Cotula coronopifolia Malcolm A. Nobs; S. Galen Smith 1949-8-3 1163 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  UCR37534  Crassula connata L. P. Janeway 1983-5-1 256 Humboldt Northern Coast, North Spit (Samoa Peninsula). Sand dunes west of Samoa Rd and north of Coast Guard Station 6 Comment
  HSC104401  Crataegus gaylussacia Jim McIntosh 2012-5-22 Humboldt Klamath Mountains; southern Siskiyou Mtns., adjacent to north side of State Route 169 at Milepost 22.09; 200 ft. above Klamath River. 96 Comment
  HSC58161  Crepis acuminata G. L. Clifton, Griswold 1979-8-2 12224 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC581731  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  HSC5446  Crepis capillaris L. K. Weld 1967-7-16 2 Humboldt Myrtle Ave. 1 mi. S of Freshwater Corners Comment
  HSC31207  Crepis pleurocarpa D. E. Anderson 1972-6-20 5742 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC44153  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-1 3544 Humboldt Between Bear and Blanket Creeks 1524 Comment
  RSA43684  Crepis setosa H. M. Pollard 1948-8-8 s.n. Humboldt Roadside between Orleans and Camp Creek Comment
  UCD130982  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek. 152 Comment
  RSA201792  Crocidium multicaule Roman Gankin, W. R. Hildreth 1966-3-15 700 Humboldt On serpentine slopes of Klamath River canyon, State Highway 96, 4.6 miles north of Hoopa. Comment
  UC1239666  Cryptantha affinis Harold E. Parks and Joseph P. Tracy 1934-6-27 11059 Humboldt Grouse Mt. 1432 Comment
  UC1239662  Cryptantha affinis Joseph P. Tracy 1935-7-23 14130 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  SBBG16519  Cryptantha leiocarpa D. E. Breedlove 1962-6-7 3051 Humboldt 1.5 mi S of Samoa on peninsula on W side of Humboldt Bay Comment
  UC1222273  Cryptantha milobakeri Joseph P. Tracy with Dr. S. K. Harris 1942-6-23 17221 Humboldt e side Hoopa Valley (foot of Trinity Summit Road); Trinity Summit, Hoopa Valley Comment
  HSC73579  Cryptantha torreyana Gail Newton 1980-7-14 1479 Humboldt Near Last Chance Ridge. 1219 Comment
  SBBG28775  Cryptantha torreyana L. Constance, R. C. Rollins 1942-5-11 Humboldt Hoopa Valley 5 mi S of Hoopa 121 Comment
  POM318827  Cuscuta salina Patricia Wilder 1968-8-21 4416 a Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  SEINET5785849 Image available Cuscuta salina var. major C. C. Harris, S. K. Harris 1941-8-28 Humboldt Humboldt Bay near Table Bluff Comment
  UC642236  Cyclospermum leptophyllum Joseph P. Tracy 1927-8-20 8333 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on Van Duzen River) 91 Comment
  UC1222263  Cynoglossum grande Joseph P. Tracy 1949-6-20 18314 Humboldt 6 mi. s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  CHSC94941  Cynoglossum occidentale K. Lang; J. Lang 2005-3-14 8 Humboldt Trinidad, California coast. 51 Comment
  UC1222257  Cynoglossum occidentale Joseph P. Tracy 1948-8-15 18121 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit Rd. high point); Trinity Summit 1524 Comment
  UC213325  Cyperus bipartitus Joseph P. Tracy 1920-8-15 5366 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  HSC97544  Cyperus eragrostis Ivy Watson 2008-10-5 40 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  RSA246812  Cyperus eragrostis Robert F. Thorne 1965-9-19 35460 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  UC668036  Cyperus squarrosus Joseph P. Tracy 1931-9-7 9662 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC102614  Cystopteris fragilis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1601 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC1103247  Dactylis glomerata Joseph P. Tracy 1927-6-24 8205 Humboldt Eureka; Northern Coast Ranges, Eureka 0 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
  HSC40398  Danthonia californica Thomas W. Nelson 1976-7-9 3008 Humboldt S of Mtn. Lassic, (Signal Peak). 1707 Comment
  CAS-BOT-BC194370  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  UC1197350  Daucus pusillus J. P. Tracy 1901-7-29 1228 Humboldt immediate vicinity Eureka (hillside in Connick's Field) 0 Comment
  HSC100617  Delphinium Carl C. Marshall Apr 1886 187 Humboldt Vicinity of Humboldt Bay. Comment
  CAS-BOT-BC9032  Delphinium decorum subsp. tracyi Doris K. Kildale 1928-5-19 5213 Humboldt Chalk Mountain Comment
  HSC97582  Delphinium decorum subsp. tracyi Cara Witte 2007-5-23 105 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  CAS-BOT-BC9031  Delphinium decorum subsp. tracyi Doris K. Kildale 1926-4-18 1773 Humboldt McCelellan Mountain 822 Comment
  UC183703  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4156 Humboldt streamlet near summit Northern Coast Ranges, Buck Mountain 1219 Comment
  CAS-BOT-BC10310  Delphinium hesperium Alice Eastwood; John Thomas Howell 1937-6-23 4854 Humboldt Mad River Canyon, between Kneeland and Korbel Comment
  RSA152334  Delphinium hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Trinity River Valley, Willow Creek Comment
  JEPS60600  Delphinium nudicaule Lincoln Constance 1934-6-15 881 Humboldt Grasshopper Peak Bull Creek Region, South Fork Eel River (summit) 975 Comment
  UC1196331  Delphinium nudicaule Joseph P. Tracy 1923-6-3 6260 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC27071  Delphinium nudicaule Clifton Raymond Chesbrough 1971-4-11 8 Humboldt 1.0 mi. E of Salyer on Hwy. 299, along Trinity River Comment
  HSC45587  Delphinium nudicaule Diane L. Reed 1978-5-27 128 Humboldt Horse Mtn., on Titlow Hill Rd. 1.5 mi. from junction with Hwy. 299 Comment
  HSC89622  Delphinium nudicaule Pat Daly, Rudy Galindo 1988-3-12 5 Humboldt S Fork Trail of Trinity River, trailhead 12.4 mi. up S Fork Rd. from Hwy. 299 457 Comment
  HSC31440  Delphinium nuttallianum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5558 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC32304  Delphinium nuttallianum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5650 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC44525  Delphinium nuttallianum Brad Klipfel 1973-7-1 133 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC70229  Delphinium nuttallianum M. A. Baker 1980-6-8 1897 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC121975  Delphinium trolliifolium Mrs. G Earle Kelly 1924-6-1 s.n. Humboldt Kneeland Prairie Comment
  UC160942  Delphinium trolliifolium Joseph P. Tracy Jul 27 1908-Jul 30 1908 2712 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC99633  Delphinium trolliifolium Allan R. Marshall 1962-5-11 10 Humboldt 50 yds. in front of N side of Hwy. 299 610 Comment
  HSC27023  Deschampsia cespitosa subsp. holciformis Brad W. Klipfel 1973-8-17 274 Humboldt Big Lagoon Park, at the Sphagnum bog. Comment
  CAS-BOT-BC201779  Deschampsia elongata H. E. Parks 1931-5-1 3646 a Humboldt Big Lagoon Comment
  HSC98585  Deschampsia elongata Cara Witte 2008-7-30 964 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  POM210034  Deschampsia elongata H. E. Parks 1931-05 3646 a Humboldt Big Lagoon Comment
  RSA183518  Deschampsia elongata D. E. Anderson 1965-9-5 4075 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  SEINET179616 Image available Deschampsia elongata H. E. Parks 3646 a Humboldt Big Lagoon Comment
  UC1103218  Deschampsia elongata Joseph P. Tracy 1935-7-27 14291 Humboldt Trinity Summit, McKay Prairie 1584 Comment
  JEPS9736  Dicentra formosa Joseph P. Tracy 1930-8-17 9164 Humboldt Big Lagoon; Northern Coast Region 15 Comment
  JEPS9737  Dicentra formosa Joseph P. Tracy 1933-5-28 12414 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC503032  Dicentra formosa Joseph P. Tracy Jul 16 1930-Jul 19 1930 9042 Humboldt near Blake Lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  UCR179275  Dicentra formosa R. G. Swinney 1968-3-28 237 Humboldt East of Humboldt State College, Arcata 152 Comment
  UC1116210  Dicentra uniflora Joseph P. Tracy 1942-6-23 17253 Humboldt near Water-dog Lakes (Trinity Summit); Trinity Summit 1828 Comment
  POM161059  Dichelostemma capitatum subsp. capitatum Joseph P. Tracy 1925-5-30 7028 Humboldt Laribee Valley. 701 Comment
  CHSC2082  Dichelostemma ida-maia A. Small 1954-5-1 Humboldt Near Honey-dew Comment
  CAS-BOT-BC501024  Dichelostemma ida-maia Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA46864  Dichelostemma ida-maia Doris K. Kildale 1927-7-10 3735 Humboldt Gans Prairie, Bald Hills. Comment
  CAS-BOT-BC500981  Dichelostemma multiflorum Doris K. Kildale 1927-7-3 3655 Humboldt Willow Creek Flat 152 Comment
  SEINET3885674  Dichelostemma pulchellum James P. Smith 1973-5-5 6485 Humboldt Roadside and streamside along Cook and Green Pass.; 0 Comment
  JEPS15182  Digitalis purpurea G. T. Nordstrom Jul 1937 1442 Humboldt 1.6 mi wsw Orick; Orick Quad. 45 Comment
  SEINET200657 Image available Digitaria sanguinalis Joseph P. Tracy 1942-9-13 17316 Humboldt Eureka. 30 Comment
  SEINET8221173  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna. Comment
  CAS-BOT-BC153323  Diplacus layneae Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1371 Comment
  POM277209  Disporum hookeri var. hookeri Lyman Benson 1929-7-12 1788 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  UCR67630  Disporum smithii Michael A. Hanson 1990-5-21 71 Humboldt Little Creek Trail in Redwood National Park; on the E side of Hwy 101 c. 7 mi (11 km) south of Klamath. 325 Comment
  SEINET201055 Image available Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Trinity Summit, Corral Prarie. 1585 Comment
  HSC17858  Dodecatheon hendersonii D. E. Anderson 1965-5-1 3573 Humboldt Along Bluff Creek road about 2.5 mi. from its junction with Hwy. 96 Comment
  RSA183606  Dodecatheon hendersonii G. Bos 1965-5-15 278 Humboldt Berry Summit near U.S. 299. Growing in moss at base of Quercus. 793 Comment
  UC602557  Downingia cuspidata Joseph P. Tracy 1935-5-25 13843 Humboldt Fort Seward 106 Comment
  UCD55079  Downingia willamettensis Rachel Foster 1970-1 F70- 96 -11 Humboldt Hydesville. Adjacent to Hydesville School. Comment
  HSC57990  Draba howellii G. L. Clifton, Terry Griswold 1979-7-31 11738 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC552293  Draba verna Joseph P. Tracy 1935-4-5 13772 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  JEPS1611  Draperia systyla Joseph P. Tracy 1935-7-31 14389 Humboldt Devil's Backbone; ridge connecting Trinity Summit with Salmon Summit 1524 Comment
  CAS-BOT-BC401535  Drosera rotundifolia Carl B. Wolf 1927-8-22 778 Humboldt Big Lagoon Comment
  RSA0011677  Drosera rotundifolia C. B. Wolf 1927-8-22 778 Humboldt Big Lagoon. Comment
  JEPS337  Dryopteris arguta Wm. K. D. Reynolds August, 1933 Humboldt Riceland Comment
  POM281633  Dryopteris arguta Lyman Benson 1929-7-16 1547 Humboldt Weott Ranger Station. Comment
  UC811824  Dryopteris arguta George Neville Jones 1936-3-22 8672 Humboldt near Garberville Comment
  CAS-BOT-BC427987  Dudleya caespitosa Carl B. Wolf 1927-8-29 1222 Humboldt Coast so. of Cape Mendocino at Devils Gate Comment
  HSC41210  Dysphania botrys Thomas W. Nelson, Jane P. Nelson 1977-9-3 3724 Humboldt Along Forest Service Rd. to N of Alder Springs 1524 Comment
  HSC100405  Echinospermum Carl C. Marshall Jun 1886 317 Humboldt Trail E of Hoopa. Comment
  UC666878  Eleocharis acicularis Joseph P. Tracy 1935-7-27 14298 Humboldt McKay Prairie Trinity Summit (along streamlet) 1584 Comment
  UCD49713  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Carpeting dried-up bed of pond. Dow's Prairie. 60 Comment
  UC1103659  Eleocharis bella Joseph P. Tracy 1931-9-7 9651 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC197346  Elymus W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  UC1137130  Elymus X macounii August L. Hormay 1932-5-12 Humboldt Bull Creek Road; near bridge Comment
  HSC58665  Elymus elymoides var. elymoides G. L. Clifton, Griswold 1979-8-1 12052 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC36619  Elymus glaucus J. D. Ackerman 1974-5-25 256 Humboldt Trinidad, Trinidad Beach S of Trinidad Head. Comment
  HSC9713  Elymus glaucus D. E. Anderson 1965-5-15 3718 Humboldt Along Hwy. 96, 1.9 miles N of Willow Creek. Comment
  UCD62371  Elymus glaucus subsp. glaucus A. H. Shunk 1923-7-12 Humboldt Briceland. Comment
  POM295816  Elymus glaucus subsp. virescens Lyman Benson 1929-7-19 1856 Humboldt Dyerville to Matole River. Comment
  UCD62410  Elymus glaucus subsp. virescens G. L. Stebbins Jr.; G. L. Church 1941-5-26 3106 Humboldt Just north of Little River, south of Trinidad. Comment
  UCD62413  Elymus glaucus subsp. virescens P. B. Kennedy 1928-7-16 Humboldt Near Trinidad. Comment
  HSC98130  Elymus hispidus Cara Witte 2007-6-28 387 Humboldt Forest Service Road 5N10. 1293 Comment
  HSC70693  Elymus multisetus Gail Newton 1980-7-15 1560 Humboldt Near Sims Mtn. 1311 Comment
  UC1040574  Elymus trachycaulus L. T. Burcham 1956-7-19 342 Humboldt Northeast Capetown; along roadside and on adjacent sheep range. 365 Comment
  SEINET200978  Elymus virescens Joseph P. Tracy 1938-6-17 15959 Humboldt Cape Mendocino. South of point of Cape. 3 Comment
  HSC102919  Epilobium M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1077 Humboldt Patterson Meadows 1555 Comment
  RSA668413  Epilobium angustifolium var. macrophyllum Thomas W Stark 1967-7-18 79 Humboldt West side of U.S. Rt. 101, 1 miles south of town of McKinleyville 61 Comment
  HSC55351  Epilobium canum subsp. latifolium Griswold, Butler 1979-7-12 7272 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC54584  Epilobium ciliatum subsp. ciliatum Overton, Butler 1979-7-24 9638 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  JEPS31530  Epilobium ciliatum subsp. ciliatum Lincoln Constance 1934-5-31 765 Humboldt Bull Cr. flat South Fork Eel River, Bull Creek region, Bull Creek (along n side of creek from w boundary of Park to Grasshopper Pk. (Squaw Cr. rd.)) Comment
  UC902177  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1947-7-5 17810 Humboldt near Box Camp (along stream); Trinity Summit 1463 Comment
  UC1198503  Epilobium densiflorum Joseph P. Tracy 1911-7-11 3509 Humboldt mouth of Supply Creek Northern Coast Ranges, Hoopa Valley 152 Comment
  POM225270  Epilobium foliosum P. A. Munz 1936-8-10 14341 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. 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
  HSC45464  Epilobium hallianum Thomas W. Nelson, Jane P. Nelson 1978-7-2 4390 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  BLMAR178  Epilobium minutum Donald Hazlett 1994-6-7 178 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC49630  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3401 Humboldt Mckeown Ranch N of Dinsmore, Mad River 610 Comment
  HSC53953  Epilobium oreganum Terry Griswold, Marvin Butler 1979-7-11 7003 Humboldt Near Snow Camp Lake, close to the town of Willow Creek 1393 Comment
  RSA259564  Epipactis gigantea D. E. Anderson, J. P. Smith 1971-6-28 J- 1224 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  UC667938  Equisetum arvense Joseph P. Tracy 1935-7-27 14292 Humboldt open places at McKay Prairie; Trinity Summit 1584 Comment
  JEPS60147  Equisetum arvense W. L. Jepson 1932-7-24 16378 Humboldt near Camp Grant (bank of main Eel River); Eel River 91 Comment
  HSC61634  Equisetum laevigatum Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  CAS-BOT-BC57791  Equisetum telmateia Joseph P. Tracy 1934-6-28 13268 Humboldt By Salmon Creek. 9 Comment
  HSC54653  Equisetum telmateia subsp. braunii Overton, Butler 1979-7-25 9861 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  CAS-BOT-BC284097  Eragrostis pectinacea var. pectinacea Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC32286  Eremogone congesta var. crassula D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5632 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC57993  Eremogone congesta var. suffrutescens G. L. Clifton, Griswold 1979-7-31 11754 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC287477  Ericameria greenei Doris K. Kildale 1925-8-17 1212 Humboldt Trinity Summit at Ranger Station 1828 Comment
  JEPS21500  Ericameria nauseosa var. speciosa Joseph P. Tracy 1929-8-18 8652 Humboldt Northern Coast Ranges, Larrabee Valley 701 Comment
  UC1223013  Erigeron aliceae Joseph P. Tracy 1949-8-11 18487 Humboldt 1.5 mi se of Snow Camp (along creek running through fir woods near the C. M. Preston place) 1463 Comment
  CAS-BOT-BC300370  Erigeron eatonii var. plantagineus Thomas W. Nelson; James L. Nelson 1980-6-10 5395 Humboldt North Coast Ranges. Jack Rabbit Valley. Along Swayback Ridge 4-wheel drive road 1 mile south of junction with Forest Service road 1493 Comment
  HSC67444  Erigeron glaucus J. P. Smith 1971-10-6 4955 Humboldt At the end of Murray Rd., McKinleyville Comment
  BLMAR118  Erigeron glaucus Jennifer Anthony-Wheeler 1995-4-4 118 Humboldt King range, growing on beach dunes S of 1st arch fence exclosure 6 Comment
  RSA607404  Erigeron glaucus R. S. Woglum 1938-8-29 2023 Humboldt North Coast: Samoa; Samoa Peninsula separating Humboldt Bay from the Pacific Ocean. . Comment
  UC1223136  Erigeron inornatus var. inornatus Joseph P. Tracy 1949-8-11 18483 Humboldt 3 mi se of Snow Camp (at Twin Lakes); Twin Lakes 1463 Comment
  HSC74492  Erigeron klamathensis M. A. Baker 1980-7-24 3208 Humboldt Near Orleans Mtn. 1625 Comment
  HSC97452  Erigeron klamathensis Cara Witte 2007-6-7 219 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  HSC97980  Erigeron klamathensis Cara Witte 2007-7-8 448 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  HSC81688  Erigeron maniopotamicus Thomas W. Nelson, James Nelson 1980-6-10 5395 Humboldt Jack Rabbit Valley, along Swayback Ridge 4-wheel drive road, 1 mi. S of junction with Forest Service road 1494 Comment
  HSC104065  Erigeron maniopotamicus John McRae 2009-6-25 Humboldt Six Rivers National Forest; along FS Rd. 1N08 1280 Comment
  CAS-BOT-BC214588  Erigeron philadelphicus L. R. Abrams 1922-6-25 8225 Humboldt 6 mi north of Garberville Comment
  SDSU3939  Erigeron philadelphicus D. F. Howe 1962-5-21 3297 Humboldt 16 miles north of Garberville on #101. 61 Comment
  JEPS82129  Erigeron philadelphicus var. philadelphicus Rimo Bacigalupi 1959-7-7 7250 Humboldt immediately behind bluff headland (just n of road summit at this point); Cape Mendocino 30 Comment
  UC581718 Image available Erigeron robustior J. P. Tracy 1932-6-26 10252 Humboldt Valley of South Yager Creek; ; valley of South Yager Creek, Humboldt Co. 762 Comment
  SEINET11851213  Erigeron strigosus J. P. Tracy 1950-1 19046 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  UC1199400  Erigeron strigosus var. septentrionalis Joseph P. Tracy 1935-7-9 14057 Humboldt opposite Willow Creek; Trinity River Valley 152 Comment
  HSC55163  Eriogonum compositum Gilbert Muth 1979-8-1 12142 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC259151  Eriogonum latifolium Harley P. Chandler 1901-5-1 1205 Humboldt Humboldt Bay 3 Comment
  UC1198150  Eriogonum latifolium Joseph P. Tracy 1938-6-17 15960 Humboldt near ocean shore (s of point of Cape); Cape Mendocino 3 Comment
  CAS-BOT-BC259153  Eriogonum latifolium Arthur Menzies 1961-9-3 s.n. Humboldt Samoa, near Arcata Comment
  HSC17298  Eriogonum latifolium D. E. Anderson 1961-9-22 1829 Humboldt Comment
  HSC26917  Eriogonum latifolium Brad Klipfel 1973-7-30 220 Humboldt Samoa Rd. near Mad River Slough Comment
  HSC49980  Eriogonum nudum var. nudum M. A. Baker 1979-6-7 780 Humboldt N bank of road to Snow Mtn. 610 Comment
  SEINET11938137  Eriogonum nudum var. oblongifolium J. P. Tracy 1950-1 19373 Humboldt Slat Creek Comment
  UC14096  Eriogonum roseum Chesnut and Drew 1888-7-25 Humboldt Hy-Am-Pum Comment
  UC205641  Eriogonum roseum Joseph P. Tracy 1919-9-13 5191 Humboldt Trinity River near Willow Creek - Northern Coast Ranges, Trinity River Comment
  HSC24386  Eriogonum umbellatum var. goodmanii J. O. Sawyer 1970-6-24 2211 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC98098  Eriogonum umbellatum var. goodmanii Cara Witte 2007-6-20 307 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  SD42330  Eriogonum umbellatum var. polyanthum Carl B. Wolf 1937-8-13 9221 Humboldt North Coast Range; 8 mi. E. of Hoopa Valley on new road towards Trinity Summit Comment
  OBI36670  Eriophyllum lanatum David J. Keil 1983-7-2 17314 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit Rd 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
  UC1199141  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1934-7-6 13664 Humboldt Iaqua; North Coast Ranges, Iaqua 609 Comment
  CAS-BOT-BC301012  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1925-6-28 913 Humboldt Fleener Creek Comment
  UC507068  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-5-21 E 34 Humboldt 1 mi n Garberville; South Fork of Eel River Comment
  CAS-BOT-BC301179  Eriophyllum lanatum var. arachnoideum A. A. Heller 1923-7-9 13784 Humboldt Along the grade south of Eureka Comment
  UC176857  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1912-7-21 3768 Humboldt Alton Northern Coast Region of California Comment
  UC1223132  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1987-7-4 17784 Humboldt ridge top 1 mi w of Mud Springs (in serpentine formation); Trinity Summit 1158 Comment
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Jun 28 2015
  UC165849  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 Humboldt w side of river near Willow Creek; North Coast Ranges, Trinity River 304 Comment
  CAS-BOT-BC301685  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1933-8-6 12936 Humboldt French Camp Ridge 1066 Comment
  RSA390945  Erodium botrys Unspecified 1932-7-14 16269 Humboldt Near Garberville Comment
  HSC26363  Erodium cicutarium T. O. Osborne 1970-5-24 87 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  HSC6785  Erysimum menziesii S. J. Hawks 1965-3-19 8 Humboldt W of Eureka airport. Comment
  UC249502  Erythronium californicum Joseph P. Tracy 1922-4-30 6037 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 609 Comment
  CAS-BOT-BC504306  Erythronium californicum Doris K. Kildale 1926-3-21 s.n. Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC504310  Erythronium californicum Michalski; Raum; Hopson 1987-4-1 87 Humboldt Larabee Buttes Comment
  HSC70227  Erythronium grandiflorum subsp. grandiflorum M. A. Baker 1980-6-8 1890 Humboldt Near Buck Flat. 1554 Comment
  JEPS88924  Erythronium revolutum Harley P. Chandler Jun 1901 1279 Humboldt Hupa Indian Reservation 1066 Comment
  UC666963  Erythronium revolutum Joseph P. Tracy 1927-5-15 8064 Humboldt woods at head Pine Creek; Hoopa Mountain 1066 Comment
  UCD170582  Eschscholzia californica subsp. californica Gordon Leppig 1998-5-8 744 Humboldt Arcata, empty lot corner of Sunset and Jay St. 24 Comment
  UC1199299  Eucephalus tomentellus Joseph P. Tracy 1932-7-12 10437 Humboldt Corral Prairie, (open places at) Trinity Summit 1584 Comment
  UC1540456  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  UC449999  Euchiton sphaericus Joseph P. Tracy 1918-9-1 5097 Humboldt on old Kneeland Prairie road Newells Camp (around Humboldt Bay); Northern Coast Ranges, Humboldt Bay 457 Comment
  UC1199358  Euchiton sphaericus Joseph P. Tracy 1931-8-8 9608 Humboldt along Lord-Ellis Road (headwaters of North Fork of Mad River); North Fork of Mad River 609 Comment
  UC18050  Euonymus occidentalis var. occidentalis C. C. Marshall 1888-1 Humboldt Mad R. Mts. Comment
  HSC28197  Euphorbia helioscopia Thomas W. Nelson 1973-4-25 799 Humboldt On H.S.U. campus, beside Forestry Dept. Greenhouse. Comment
  UC709444  Euphorbia lathyris Joseph P. Tracy 1941-10-26 17052 Humboldt Hydesville 91 Comment
  HSC100482  Euphorbia lathyris Carl C. Marshall Jun 1885 114 Humboldt Near Arcata fields, etc. Comment
  HSC34947  Euphorbia peplus Dryden 1975-4-20 124 Humboldt Yard 0 Comment
  HSC35991  Eurybia radulina Thomas W. Nelson, James Nelson 1975-9-1 2189 Humboldt High Rock State Park Comment
  JEPS31918  Eurybia radulina Lincoln Constance 1934-6-19 911 Humboldt Grasshopper Peak (near summit) South fork Eel River, Grasshopper Peak 914 Comment
  JEPS32360  Euthamia occidentalis Joseph P. Tracy 1931-9-7 9636 Humboldt opposite mouth of, at Lack Pond, (in Trinity R. Valley opp. mouth of Willow Cr.) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  SEINET3244015  Euthamia occidentalis S. K. Harris, Charlotte Wilder 1938-1 879 Humboldt Bars of the Van Dusen River, above Blue Slide. Comment
  SEINET4206010  Fallopia convolvulus Chesnut, Drew 1888-7-25 s.n. Humboldt Grouse Creek Comment
  OBI10874  Fallopia sachalinensis T. C. Fuller 1968-7-30 17447 Humboldt NE side of Hwy 101 fwy overpass, Fields landing Comment
  HSC98591  Festuca californica var. californica Cara Witte 2007-6-14 281 Humboldt Along National Forest 1 on Kinsey Ridge. 1/2 mile north of White Oak Opening. 1258 Comment
  UC552675  Festuca elmeri Joseph P. Tracy 1935-5-25 13877 Humboldt Fort Seward 106 Comment
  UC580793  Festuca elmeri H. S. Yates 1936-6-17 5690 Humboldt lower nw slope Buck Mountain; South Fork Pk., Buck Mountain 792 Comment
  UC70909  Festuca idahoensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5877 Humboldt Martins Ferry Comment
  HSC32491  Festuca occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5722 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC76549  Festuca occidentalis Dennis Kearns 1981-7-6 38 Humboldt Near Mosquito Lake 1122 Comment
  UCR137175  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville 197 Comment
  UCD66284  Festuca roemeri Collector Unknown 1951-6-18 Humboldt Collected at Snail Ridge near Hydesville. Comment
  CAS-BOT-BC278965  Festuca rubra Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC65107  Festuca rubra J. P. Smith 1970-6-7 3800 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC65121  Festuca rubra J. P. Smith 1973-5-26 6880 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC73769  Festuca rubra M. A. Baker 1980-6-7 1778 Humboldt Near Brush Mtn. 1128 Comment
  RSA256294  Festuca rubra J. R. Reeder, C. G. Reeder 1973-5-26 6185 Humboldt Ca. 2 miles S of Orick in Humboldt State Park. Comment
  SEINET200831 Image available Festuca rubra Joseph P. Tracy 1906-6-24 2511 Humboldt S slope of Humboldt Hill near Field's Landing; region about Humboldt Bay 0 Comment
  UC526868  Festuca rubra Joseph P. Tracy 1927-6-26 8217 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  UCD66438  Festuca subulata Joseph P. Tracy 1937-7-25 15541 Humboldt Trinity Summit, Head of Little Hors-Linto Creek. 1371 Comment
  UC180507  Festuca subuliflora Joseph P. Tracy 1913-6-14 4126 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC205480  Foeniculum vulgare Joseph P. Tracy 1919-9-14 5221 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC453519  Fragaria chiloensis David D. Keck; J. Clausen 1935-6-16 3390 Humboldt Mouth of Little River 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
  HSC71666  Fragaria vesca Gail Newton 1980-6-24 553 Humboldt Near Ladder Rock 1500 Comment
  UC1949135  Fragaria vesca subsp. californica Barbara Ertter with Thomas J. Delendick 1987-5-16 6933 Humboldt 3 mi E of Berry Summit on Hwy 299, ca 20 airmiles E of Arcata; on S side of road above Willow Creek Comment
  CAS-BOT-BC52735  Frangula californica subsp. californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  SD22835  Frangula californica subsp. californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  CAS-BOT-BC53401  Frangula californica subsp. occidentalis Doris K. Kildale 1928-10-7 6748 Humboldt Willow Creek Canyon, 7 mi. west of Trinity Comment
  CAS-BOT-BC59997  Frangula purshiana C. B. Wolf 1937-8-13 9260 Humboldt N. coast range, 11 mi. e. of Hoopa Valley on New Road towards Trinity summit. 1524 Comment
  CAS-BOT-BC60000  Frangula purshiana C. B. Wolf 1931-8-30 2373 Humboldt E. side of Eureka on P. St., one block n. of Henderson St. 30 Comment
  SEINET11248085  Frangula purshiana W. D. Billings 1940-6-28 1354 Humboldt 1/4 mile N. of Trinidad Comment
  HSC46121  Fraxinus latifolia J. P. Smith 1971-10-9 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC54925  Fraxinus latifolia Mrs. M. H. Manning 1902-4 Humboldt near Hupa Comment
  HSC38259  Fritillaria affinis Thomas W. Nelson 1976-4-3 2285 Humboldt Hwy 36 at east end of Swain's Flat Comment
  UC275552  Fritillaria affinis Joseph P. Tracy 1923-4-15 6184 Humboldt Redwood Creek, at Berry's Redwood Creek; Northern Coast Ranges, , Berry's 274 Comment
  CAS-BOT-BC136032  Fritillaria affinis John Thomas Howell 1954-4-25 29154 Humboldt Dune hills, Little River Comment
  SEINET255379  Fritillaria lanceolata Joseph P. Tracy 1913-6-20 4228 Humboldt Lower foothills of Buck Mountain, on its NW slope. 762 Comment
  UC1197630  Fritillaria purdyi Joseph P. Tracy 1926-4-3 7394 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET8272054  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie. Comment
  HSC16382  Fuchsia magellanica var. discolor T. M. Mingo May 1965 Humboldt About 3 mi. N of College Cove Comment
  CAS-BOT-BC422450  Fumaria officinalis Joseph P. Tracy 1949-4-1 18277 Humboldt Eureka 30 Comment
  HSC95750  Galium aparine Steven Lee 2004-4-25 23 Humboldt From Hwy. 299, take South Fork Rd. to County Rd. 341. River access trail is at the end of the road. Comment
  HSC31221  Galium muricatum D. E. Anderson 1972-6-20 5727 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  RSA53645  Galium parisiense Roxana S. Ferris 1955-7-11 12972 Humboldt Summit of U.S. Hwy 299 btwn. Willow Creek and Blue Lake. Comment
  HSC39162  Galium triflorum D. E. Anderson, J. P. Smith 1971-6-28 - 1241 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  JEPS6535  Galium triflorum W. L. Jepson 1932-7-27 16423 Humboldt Bull Creek 106 Comment
  HSC89610  Gamochaeta ustulata M. Roantree 1985-5-2 28 Humboldt SW side of Trinidad Head Comment
  RSA296734  Gamochaeta ustulata J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC73036  Garrya buxifolia Gail Newton 1980-7-23 1712 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC33744  Garrya elliptica J. M. Sauser 1975-5-24 73 Humboldt Samoa dunes off Samoa Blvd. from boat landing Comment
  HSC62874  Garrya elliptica J. M. DiTomaso 1979-5-20 1059 Humboldt Above College Cove at Elks Head, 1 mi. N of Trinidad. Comment
  UCD121101  Garrya elliptica Linda M. Barker 1976-1-24 1309 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  CAS-BOT-BC182145  Garrya fremontii L. B. Kildale 1931-10-1 s.n. Humboldt Bug Creek, Caparall Mt. 1097 Comment
  UCSB72515  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  CAS-BOT-BC282615  Gastridium phleoides Henry M. Pollard 1944-9-17 s.n. Humboldt Near Orleans Comment
  HSC8625  Gastridium phleoides D. E. Anderson, J. P. Smith 1971-6-21 - 1104 Humboldt 16.2 mi. E of Garberville on road to Alderpoint. Comment
  HSC59858  Gaultheria ovatifolia M. A. Baker 1979-7-6 1011 Humboldt .6 k W of FS rd. 15N01 on rd. 12N16, toward Bald Mtn. Comment
  HSC7819  Gaultheria ovatifolia D. E. Anderson 1965-6-1 3761 Humboldt Horse Mountain. 1220 Comment
  HSC31342  Gaultheria shallon Larry E. DeBuhr, G. D. Wallace 1972-5-22 607 Humboldt 25 mi. N of Arcata at the S end of Big Lagoon Comment
  HSC45586  Gaultheria shallon Diane L. Reed 1978-5-27 140 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  RSA1367  Gaultheria shallon E. R. Johnson 1929-08 612 Humboldt Eel River. 91 Comment
  RSA2931  Gaultheria shallon C. B. Wolf 1931-8-29 1242 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  RSA467224  Gaultheria shallon H. E. McMinn 1931-6-28 2548 Humboldt Orick to Requa Comment
  UC527560  Gaultheria shallon C. B. Wolf 1931-8-29 Humboldt near summit of Orick Hill, on road to Weitchpec Orick Hill 304 Comment
  UCD117449  Gaultheria shallon Linda M. Barker 1976-5-13 1482 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. 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
  UC562353  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CDA4089  Genista monspessulana T. C. Fuller 1958-6-17 570 -58 Humboldt Lower Mattole. 0 Comment
  RSA46856  Gentiana oregana Doris K. Kildale 1926-7-11 2370 Humboldt Bear River, ridge near Mt. Glen. Comment
  HSC102240  Gentiana plurisetosa Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  UC275299  Gentiana sceptrum R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UC1197408  Geranium dissectum Joseph P. Tracy 1934-6-28 13266 Humboldt s end Humboldt Vay; Salmon Creek Valley 9 Comment
  HSC78962  Geranium dissectum L. P. Janeway, K. Berg 1984-4-11 723 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  HSC95593  Geranium dissectum Andrea Pickart 2002-5-24 110 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  UC1541258  Geranium molle H. E. Parks, J. P. Tracy 1930-5-25 875 Humboldt Laribee Valley 762 Comment
  UCD103408  Geranium molle Joseph M. DiTomaso 1976-3-28 346 Humboldt Samoa Cookhouse in Samoa. Comment
  SEINET196700  Gilia capillaris Joseph P. Tracy 1932-7-10 10374 Humboldt Trinity Summit Corral Prairie in wet meadow 1585 Comment
  HSC45985  Gilia capitata J. P. Smith, Steve Selva 1970-6-14 3842 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  POM188372  Gilia capitata Marcus E. Jones 1931-6-16 s.n. Humboldt Junction East of Arcata Comment
  BLMAR590  Gilia capitata subsp. capitata Jennifer Wheeler 2010-7-13 590 Humboldt King range, along Panther Gap Road 792 Comment
  HSC95589  Gilia millefoliata Andrea Pickart 2002-5-20 105 Humboldt Manila Dunes, near Manila Community Services District treatment area 15 Comment
  SBBG5887  Gilia millefoliata H. and M. Dearing 1939-5-25 3432 Humboldt near Samoa Comment
  UCD117850  Gilia millefoliata Linda M. Barker 1976-6-1 1549 Humboldt 3 miles west of Arcata. Comment
  SEINET10873073  Githopsis specularioides Tracy 1908-6-9 TRACY 2655 Humboldt Kneeland Prairie 762 Comment
  JEPS14216  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1933-8-25 12994 Humboldt s. of mouth of Eel R. Centerville Beach 6 Comment
  CDA2166  Glyceria declinata E. C. Whitney 1968-7-16 Humboldt Arcata Bottom area. 0 Comment
  HSC58544  Glyceria elata Overton, Butler 1979-7-23 9547 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  SEINET200357 Image available Glyceria elata J. P. Tracy 1934-7-18 13429 Humboldt Grouse Mountain 1524 Comment
  UC526906  Glyceria elata Joseph P. Tracy 1925-7-5 7170 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC93744  Glyceria fluitans Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-25 791 Humboldt Arcata, Alder Grove Pond 18 Comment
  UC526907  Glyceria fluitans Joseph P. Tracy 1933-7-20 12801 Humboldt Arcata Bottom; North Coast Ranges 15 Comment
  SEINET200358 Image available Glyceria occidentalis J. P. Tracy 1930-8-3 9147 Humboldt Buck Mtn near Little Van Duzen; lower foothills of its NW slope 762 Comment
  HSC99053  Glyceria striata Cara Witte 2008-7-25 931 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1.5 mile north of intersection with Forest Service Road 5N39. 1473 Comment
  UC526909  Glyceria striata Joseph P. Tracy 1925-6-13 7086 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC49136  Gnaphalium palustre R. Becking 1979-7-29 Humboldt Van Duzen River at Cheatam Grove E of Carlotta Comment
  SEINET11836330  Gnaphalium palustre H. E. Parks, Parks, S. T. 1937-1 24080 Humboldt Spruce Cove, Trinidad Comment
  SD88350  Gnaphalium purpureum Darley F. Howe 1972-6-30 Humboldt Trinidad Comment
  POM174074  Gnaphalium sphaericum Joseph P. Tracy 1918-9-1 5097 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
  POM261473  Gnaphalium sphaericum Joseph P. Tracy 1940-8-11 16694 Humboldt Trinity River Valley near Raccoon Creek. 152 Comment
  CDA6062  Gnaphalium stramineum T. C. Fuller 1961-9-28 7059 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC29719  Goodyera oblongifolia J. D. Ackerman 1973-8-18 120 Humboldt 2 mi. N of Manila Comment
  HSC34239  Goodyera oblongifolia J. D. Ackerman 1975-8-24 648 Humboldt Intersection of Hwy. 255 to Samoa Bridge and Samoa Blvd. Comment
  CAS-BOT-BC304731  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt Northern Coast Ranges. Near Garberville 121 Comment
  CAS-BOT-BC304733  Grindelia hirsutula Carl B. Wolf 1927-8-22 783 Humboldt Big Lagoon Comment
  CAS-BOT-BC304758  Grindelia hirsutula Carl B. Wolf 1937-9-9 9305 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  CAS-BOT-BC304765  Grindelia hirsutula L. P. Janeway 1983-9-24 697 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground 3 Comment
  HSC90398  Grindelia hirsutula Jean Hanson 1980-8-28 115 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. From ca. 20 to ca. 50 ft. from high tide line. Comment
  UC520410  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-9 3686 Humboldt Eureka; salt meadows along canal Comment
  UC520422  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-9 3687 Humboldt 10 mi n Trinidad 1 Comment
  SEINET193102  Grindelia hirsutula var. davyi Y. W. Winblad 1941-6-24 Humboldt Between Garberville and Hartsook Comment
  RSA46482  Grindelia stricta var. stricta Doris K. Kildale 1925-7-10 944 Humboldt Dyerville. Comment
  RSA638980  Grindelia stricta var. stricta R. F. Thorne, Percy C. Everett 1965-8-7 35204 Humboldt Samoa Peninsula. 0 Comment
  SDSU2706  Grindelia stricta var. stricta D. F. Howe 1964-8-10 3952 Humboldt 5.7 miles north of Eureka on #101. Comment
  HSC75691  Hackelia bella Bill Copeland 1980-6-26 302 Humboldt Near Murphy Meadow 914 Comment
  UC1239637  Hackelia bella Joseph P. Tracy 1937-7-29 15587 Humboldt w slope near top at Hyampom Trail; South Fork Mountain 1676 Comment
  UC582618  Hackelia californica Joseph P. Tracy 1937-7-25 15548 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  UC1239634  Hackelia californica Joseph P. Tracy 1937-7-29 15574 Humboldt in forest near McKay Camp; South Fork Mountain 1676 Comment
  HSC56934  Hackelia micrantha G. L. Clifton, Butler 1979-7-26 9370 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  JEPS67933  Hackelia micrantha W. L. Jepson 1902-7-16 2041 Humboldt Trinity Summit 2133 Comment
  HSC61032  Hastingsia alba T. Jimerson, J. Pageau 1979-8-10 731 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  CAS-BOT-BC302440  Hazardia whitneyi var. discoidea Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC302444  Hazardia whitneyi var. discoidea Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  RSA44540  Helenium autumnale H. M. Pollard 1947-8-18 s.n. Humboldt Klamath river bar, near Orleans. Comment
  CAS-BOT-BC306615  Helenium bigelovii Joseph P. Tracy 1937-8-12 15657 Humboldt Snow Camp 1402 Comment
  UC1223096  Helenium bigelovii Joseph P. Tracy 1950-7-25 19071 Humboldt McKay Camp Comment
  HSC96487  Helenium bolanderi Gordon Leppig 1997-8-3 632 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC100435  Helenium puberulum Carl C. Marshall Jul 1886 350 Humboldt Liscom's Hill. 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
  CAS-BOT-BC309999  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-22 4752 Humboldt 11 miles from Blocksburg on road to Bridgeville Comment
  UC1223092  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1946-11-17 17664 Humboldt river bar of Eel at mouth of Van Duzen River; Eel River Comment
  UC180509  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta North Coast Ranges, Carlotta 60 Comment
  HSC38904  Heracleum maximum J. P. Smith, Steve Selva 1970-6-30 4116 Humboldt 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
  RSA47118  Heteromeles arbutifolia Doris K. Kildale 1926-6-13 s.n. Humboldt Bruceland Bridge Comment
Read comments
Jul 24 2020
  CAS-BOT-BC311076  Heterotheca oregona var. rudis Alice Eastwood 1921-7-21 10667 a Humboldt Van Duzen River Comment
  JEPS2429  Heterotheca oregona var. rudis Lincoln Constance 1934-5-26 666 Humboldt s end Dyerville Bridge (sand and gravel bar of South Fork of Eel River); Bull Creek Region, South Fork Eel River 45 Comment
  SEINET3166724  Heterotheca oregona var. rudis Unknown 1986-8-18 8531 Humboldt Garberville. Gravel bar of S fork of Eel River near U.S.-101, at Bear Canyon Rd. Comment
  HSC58353  Hieracium albiflorum Overton, Butler 1979-8-2 12691 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC312397  Hieracium albiflorum Henry M. Pollard 1948-7-18 s.n. Humboldt Red Cap Creek near Orleans Comment
  RSA595781  Hieracium albiflorum R. S. Woglum 1931-7-15 24 A Humboldt Outer Coast Ranges, Sequoia Park. Comment
  UC1103738  Hierochloe occidentalis Joseph P. Tracy 1942-5-16 17348 Humboldt Garberville 152 Comment
  UC187262  Hierochloe occidentalis Joseph P. Tracy 1911-5-7 3180 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  HSC59059  Hippuris vulgaris Thomas Wood 1979-5-17 186 Humboldt Clam Beach pond, E of Clam Beach-Little River Beach, along Hwy. 101 3 Comment
  CHSC31289  Holcus lanatus Mark Stopher 1980-7-11 116 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC89550  Holcus lanatus M. Roantree 1985-5-7 42 Humboldt SW side of Trinidad Head, along trail Comment
  SEINET197047 Image available Holcus lanatus H. E. Parks, ST Parks 24260 Humboldt Spruce Cove Trinidad. 61 Comment
  UC963839  Holcus lanatus H. E. Parks and S. T. Parks August, 1943 24260 Humboldt Spruce Cove Trinidad (Trinidad); North Coast Ranges, Spruce Cove 60 Comment
  UCD84982  Holcus lanatus Collector Unknown 1923-7-12 s.n. Humboldt Briceland. Comment
  BLMAR753  Holodiscus discolor Jennifer Wheeler 2015-8-6 753 Humboldt King range, Strawberry Rock 189 Comment
  HSC41306  Holodiscus discolor Brad Klipfel 1974-7-23 469 Humboldt Horse Mtn., on the NE side of the ridge. Comment
  UC666854  Holodiscus discolor Joseph P. Tracy 1935-7-24 14193 A Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  UC1103489  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1942-6-2 17094 Humboldt 1 mi E of town Alton 18 Comment
  UCSB2822  Horkelia tridentata Constance, Lincoln; Beetle, Alan; Tracy, Joseph 1940-5-17 Humboldt Larrabee Valley, near Eureka 762 Comment
  UC1198719  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1908-7-24 2916 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  CAS-BOT-BC206076  Hosackia crassifolia Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  NY15458  Hosackia denticulata V. K. Chesnut 1888-7-10 s.n. Humboldt Along Mad River, near Jarnigan's Comment
  HSC40128  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, James Nelson 1976-7-28 3077 Humboldt Beside rd. to Pine Mtn. 1524 Comment
  CHSC866  Hosackia rosea V. Holt 1941-5-30 Humboldt Comment
  HSC39451  Hydrocotyle ranunculoides Linda M. Barker 1976-11-6 1704 Humboldt 3 mi W of Arcata Comment
  CDA38356  Hydrocotyle ranunculoides W. F. Cruickshank 1961-5-27 s.n. Humboldt Arcata, Weyerhauser Lumber Co. 0 Comment
  HSC102115  Hydrophyllum fendleri var. albifrons M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1019 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC74204  Hydrophyllum occidentale M. A. Baker 1980-7-19 3007 Humboldt Near Bret Hole. 1814 Comment
  UC24108  Hydrophyllum occidentale Mrs. Mary H. Manning Apr 1899 Humboldt Hoopa Valley Comment
  UC906638  Hydrophyllum tenuipes H. E. Parks and Joseph P. Tracy 1949-6-25 11674 Humboldt Box Camp; Trinity Summit 1463 Comment
  JEPS1638  Hydrophyllum tenuipes Lincoln Constance 1934-5-26 650 Humboldt North Dyerville Flat grove near Founder's Tree (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel Riv 48 Comment
  JEPS1640  Hydrophyllum tenuipes Milo S. Baker July, 1923 Humboldt Carlotta, probably about [Wilder's] but possibly near Dyerville Carlotta; North Coast trip, Carlotta Comment
  UC668261  Hypericum anagalloides Joseph P. Tracy 1933-8-6 12945 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC401233  Hypericum perforatum L. R. Abrams 1916-7-11 5973 Humboldt Alders Point Comment
  HSC73150  Hypericum perforatum M. A. Baker 1980-5-18 1345 Humboldt Near Black Mtn. 792 Comment
  UC165829  Hypericum perforatum Joseph P. Tracy 1911-7-9 3478 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC902119  Hypericum perforatum Joseph P. Tracy 1943-8-23 17444 Humboldt Eureka 6 Comment
  CAS-BOT-BC401231  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt Near Klamath River, about 1/2 mile north of town of Orleans Comment
  HSC27043  Hypochaeris radicata Brad Klipfel 1973-8-23 285 Humboldt Near Lazy J Ranch on Fickle Hill Rd. Comment
  HSC96493  Hypochaeris radicata Gordon Leppig 1997-8-3 630 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  CAS-BOT-BC206840  Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  CAS-BOT-BC206844  Iliamna latibracteata Joseph P. Tracy 1949-9-1 18535 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  RSA20726  Iliamna latibracteata Carl B. Wolf 1937-9-11 9322 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  HSC44568  Ipomopsis aggregata Brad Klipfel 1973-7-15 186 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99250  Iris chrysophylla T. Jimerson, J. Pageau 1979-6-13 551 Humboldt Near Slate Creek Butte, close to the town of Orleans 549 Comment
  HSC32386  Iris douglasiana Linda M. Barker 1974-5-11 184 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC13864  Iris douglasiana John A. DuBois 1962-5-5 17 Humboldt 20 mi. E of Arcata Comment
  JEPS17227  Iris douglasiana Joseph P. Tracy 1939-6-17 16311 Humboldt vicinity Carlotta 30 Comment
  RSA135819  Iris douglasiana E. K. Balls 1957-5-25 22606 Humboldt 0.5 miles west of Bridgeville, along Van Duzen River, State Highway 36 122 Comment
  UC4291  Iris macrosiphon J. Burtt Davy 1899-6-21 5745 Humboldt Hoopa Valley; North Coast Ranges Comment
  UCD138802  Iris purdyi M. Wiesendanger 1928-4-7 912 Humboldt Redwood Highway, Lane's Redwood Flat. Comment
  HSC104075  Iris purdyi S. Carothers 2001-6-7 Humboldt Six Rivers National Forest; Lassics Botanical Area; below blue serpentine ridge, above Rd. 1S11 1585 Comment
  HSC34872  Iris purdyi Thomas W. Nelson, James Nelson 1975-5-5 1781 Humboldt Beside Hwy. 101, 5 mi. S of Salmon Creek bridge Comment
  RSA135920  Iris tenuissima Lee W. Lenz, E. K. Balls 1955-5-15 20734 Humboldt 15.8 miles southeast along U.S. Highway 299 from Willow Creek, towards Arcata 579 Comment
  HSC97581  Iris tenuissima subsp. tenuissima Cara Witte 2007-5-29 131 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  CAS-BOT-BC88650  Isatis tinctoria Joseph P. Tracy 1939-4-29 16239 Humboldt Klamath River at mouth of Slate Creek. 121 Comment
  UC1223545  Isoetes howellii Joseph P. Tracy with Mr. Murphy 1951-6-26 19582 Humboldt upper of Twin Lakes Comment
  UC667943  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold springs Grouse Mt. 1432 Comment
  HSC77189  Isolepis cernua Paul Wilson 1983-10-5 Humboldt Along Jolly Giant Creek, E of HSU housing, Arcata 15 Comment
  UC665529  Jaumea carnosa H. E. Parks 1941-8-1 24187 Humboldt Big Lagoon Comment
  CAS-BOT-BC101964  Juglans hindsii J. W. Blankinship 1928-7-12 s.n. Humboldt Clear Lake woods, Mouth of Kelsey Cr. Comment
  CAS-BOT-BC110012  Juncus Henry M. Pollard 1956-10-8 s.n. Humboldt Along road above Ullathorne Riffle, ca. 3 miles southwest of Orleans. Comment
  JEPS5820  Juncus bolanderi W. L. Jepson 1932-7-24 16393 Humboldt Tooey Ranch Garberville Comment
  POM126145  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon. 6 Comment
  UCD170802  Juncus breweri Gordon Leppig 1998-6-14 833 Humboldt Mackerricher State Park. Ingelnook Fen just north of Fen. 6 Comment
  UC14896  Juncus bufonius J. P. Tracy 1900-8-5 913 Humboldt immediate vicinity Eureka 0 Comment
  UC726591  Juncus bufonius A. A. Heller 1923-7-10 13798 Humboldt between Scotia and Pepperwood; Eel River Comment
  HSC75276  Juncus ensifolius J. O. Sawyer, D. A. Thornburgh 1980-9-9 4079 Humboldt Mill Creek Lake and surrounding meadows Comment
  UC1101013  Juncus ensifolius Malcolm A. Nobs and S. Galen Smith 1949-8-3 1199 Humboldt s outskirts Eureka Comment
  UCD141540  Juncus ensifolius Joseph P. Tracy 1937-8-7 15619 Humboldt Bald Mountain; east of Korbel. About a mile north of Murphy meadow. Comment
  JEPS49053  Juncus exiguus Hilda W. Grinnell 1932-7-22 43 Humboldt near Blake Lookout (below and s of U.S.G.S. signal rock); South Fork Mt. 1737 Comment
  HSC14065  Juncus hesperius R. L. Jarvis 1962-4-7 13 Humboldt E of Hwy. 101, 4 mi. S of Eureka 0 Comment
  HSC39050  Juncus lescurii Linda M. Barker 1976-6-22 1620 Humboldt 3 mi. W of Arcata Comment
  HSC14028  Juncus lescurii J. W. Johnson 1961-8-17 1057 Humboldt Arcata, Hollow 10, W.M. Lanphere Farm, Samoa Peninsula. Comment
  RSA742777  Juncus planifolius P. F. Zika 2008-10-19 24229 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  UC183779  Juncus saximontanus Joseph P. Tracy 1912-7-31 3911 Humboldt near Buck Mountain summit; Northern Coast Ranges 1219 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
  UC314634  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1925-7-5 7177 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC235888  Keckiella corymbosa L. Constance 1936-7-17 1807 Humboldt Open bank between Dyerville & Bull Creek Flat, Humboldt State Redwood Park Comment
  POM225119  Keckiella corymbosa Philip A. Munz 1936-8-9 14328 Humboldt South fork of Eel River, 5 miles north of Humboldt-Mendocino county line. Comment
  SBBG26952  Keckiella corymbosa C. B. Wolf 1927-8-30 Humboldt 2 mi S of Petrolia on Mattole River near where road crosses river Comment
  UC213144  Keckiella corymbosa Joseph P. Tracy 1920-8-15 5360 Humboldt Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  UC41735  Keckiella corymbosa Chesnut and Drew 1888-7-10 Humboldt Jarnigans's Comment
  RSA0009768  Keckiella lemmonii Marcus E. Jones 1931-7-16 28828 Humboldt Junction, East of Arcata. Comment
  UC1196076  Kelloggia galioides Joseph P. Tracy 1919-9-19 5257 Humboldt Trinity Summit; Northern Coast Ranges 1889 Comment
  HSC61762  Kickxia spuria Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan, 1 mi. above Pecwan, upper road Comment
  CDA2756  Kniphofia uvaria Gordon Leppig, Sylvia Leppig 2000-4-9 1287 Humboldt Arcata Marsh and Wildlife Refuge. Southeast corner of Klopp Lake dike, Arcata. Comment
  SEINET200339 Image available Koeleria macrantha J. P. Tracy 1908-7-5 2778 Humboldt NW slope of Buck Mt 914 Comment
  UC50518  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5771 Humboldt Trinity Summit Comment
  CAS-BOT-BC499192  Kopsiopsis strobilacea C. D. Duncan 1920-9-27 s.n. Humboldt Supply Creek Canyon Comment
  RSA0084173  Kopsiopsis strobilacea D. E. Anderson 1965-6-1 3773 Humboldt Along Friday Hill Road, about 2 miles northeast of its junction with Titlow Hill Road. 1158 Comment
  UC1223072  Lactuca serriola Joseph P. Tracy 1949-8-8 18402 Humboldt at Willow Creek (in Frank Graham's orchard); Trinity River Valley 152 Comment
  UC34491  Lagophylla ramosissima Chestnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC26842  Lamium amplexicaule Thomas W. Nelson 1971-1-8 323 Humboldt Ferndale next to Co. Fair Grounds Comment
  POM208992  Lasthenia californica Lincoln Constance 1934-5-23 616 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park 366 Comment
  UC166223  Lasthenia californica subsp. californica J. P. Tracy 1905-4-30 2177 Humboldt Ocean beach Opp. Eureka Comment
  UC1368669  Lathyrus glandulosus J. P. Tracy 1946-6-15 17571 Humboldt w of summit between North Fork Mad River and Redwood Creek (along Lord Ellis Road, part of Trinity Highway) 609 Comment
  HSC14735  Lathyrus japonicus R. C. Hoover 1965-5-18 57 Humboldt Clam Beach Comment
  UCD106234  Lathyrus japonicus var. maritimus B. Clark 1927-9-1 s.n. Humboldt Along R.R. track near Eureka. Comment
  HSC71352  Lathyrus latifolius J. P. Smith, J. O. Sawyer 1976-5-2 8622 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  UC249527  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1922-5-29 6062 Humboldt South Yager Creek Valley Northern Coast Ranges 762 Comment
  SEINET5327351  Lathyrus palustris J. Tracy 1907-7-20 2593 Humboldt near Samoa; region about Humboldt Bay 152 Comment
  JEPS79917  Lathyrus polymorphus Joseph P. Tracy 1932-7-20 10735 Humboldt just w of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  HSC97914  Lathyrus polyphyllus Cara Witte 2007-6-14 279 Humboldt Along National Forest 1. Near Kinsey Ridge. 3/4 mile south of intersection with 4N06. 1256 Comment
  HSC95459  Lathyrus sulphureus D. K. Imper 1993-6-25 Humboldt Table Bluff Ecological Reserve near Lighthouse Ranch, Table Bluff. 15 Comment
  RSA405757  Lathyrus vestitus subsp. vestitus Charlotte M. Hoak 1931-7-15 14014 Humboldt Big Lagoon Comment
  CAS-BOT-BC325930  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt Sand dunes at mouth of Little River. 6 Comment
  CAS-BOT-BC325998  Layia carnosa Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  RSA0008480  Layia carnosa Jennifer Wheeler 2010-5-6 568 Humboldt West of Arcata, Samoa Peninsula outer Humboldt Bay north of Manila 0 Comment
  UC1199159  Layia carnosa Joseph P. Tracy 1937-6-5 15327 Humboldt mouth of Little River 6 Comment
  HSC100701  Layia carnosa Carl C. Marshall May 1885 39 Humboldt Peninsula. Comment
  UC204699  Layia gaillardioides Joseph P. Tracy 1918-7-1 4982 Humboldt Cape Mendocino 3 Comment
  UC581805  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  UC183700  Ledum glandulosum Joseph P. Tracy 1913-9-9 4399 Humboldt Patrick's Point; Northern Coast Ranges, Patrick's Point 30 Comment
  HSC36107  Lemna minor Neil D. Ledet 1973-11-29 7 Humboldt 16 mi. S of Ferndale, N side of Cape Town along county Rd., floating on ranch pond Comment
  RSA94973  Leontodon nudicaulis F. W. Peirson 1926-7-13 7056 Humboldt Near Blue Lake, Mad River. Comment
  UC1223216  Leontodon saxatilis Joseph P. Tracy 1948-7-11 18072 Humboldt at Lack Pond Comment
  POM17172  Lepidium didymum J. B. Feudge 1923-7-22 67 Humboldt Fortuna. 15 Comment
  RSA170231  Lepidium heterophyllum Joseph P. Tracy 1942-6-15 17140 Humboldt Miranda. 91 Comment
  CAS-BOT-BC12701  Lepidium oblongum Volney Rattan 1879-1-1 s.n. Humboldt Unspecified. Comment
  UC161491  Lepidium strictum Joseph P. Tracy 1911-7-1 3276 Humboldt near Hydesville (at Carlotta); Northern Coast Region, Carlotta 60 Comment
  CDA3825  Lepidium strictum P. Haggard 1996-7-8 Humboldt Louisiana Pacific Corporation tree nursery, Crannell. Comment
  HSC45590  Leptosiphon androsaceus Diane L. Reed 1978-5-27 126 Humboldt Horse Mtn., on Titlow Hill Rd. 1.5 mi. from junction with Hwy. 299 Comment
  SBBG5980  Leptosiphon bicolor H. and M. Dearing 1939-5-24 3419 Humboldt pass, Dyerville to Mattole Rd, W of Panther Gap Comment
  OBI11411  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt Near Harris (2 miles north) 610 Comment
  CDA8182  Lessingia filaginifolia var. californica T. C. Fuller 1961-9-28 7048 Humboldt East of Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  UCR122385  Lessingia filaginifolia var. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6996 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  CAS-BOT-BC341824  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC176859  Lessingia nemaclada Joseph P. Tracy 1911-7-8 3445 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC581778  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 670 Comment
  SEINET11810782  Lessingia nemaclada var. mendocina H. P. Chandler 1901-1 1503 Humboldt Klamath River, North Coast Ranges 427 Comment
  HSC12864  Leucojum aestivum D. La Conte 1970-11-17 17 Humboldt HSC campus, Arcata Comment
  RSA249431  Lewisia triphylla D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5597 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  SEINET200639 Image available Leymus mollis subsp. mollis Joseph P. Tracy 1923-5-19 6212 Humboldt Trinidad. Comment
  UC526800  Leymus triticoides Joseph P. Tracy 1929-6-3 8601 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA246914  Leymus vancouverensis R. F. Thorne, P. Everett 1965-8-9 35313 Humboldt Big Lagoon County Park 3 Comment
  CAS-BOT-BC436496  Ligusticum apiifolium Doris K. Kildale 1927-7-17 3763 Humboldt Bug Creek 792 Comment
  POM160825A  Ligusticum apiifolium Joseph P. Tracy 1924-8-17 6820 Humboldt Trinidad 61 Comment
  UC154113  Ligusticum apiifolium Joseph P. Tracy 1909-8-29 3084 Humboldt near top Humboldt Hill; Northern Coast Region, Humboldt Bay 0 Comment
  UC183567  Ligusticum californicum Joseph P. Tracy 1912-7-31 3951 Humboldt near summit Buck Mt.; Northern Coast Ranges, Buck Mt. 1524 Comment
  UC1198239  Lilium columbianum Joseph P. Tracy 1926-7-25 7748 Humboldt Big Lagoon; Northern Coast Region 60 Comment
  UC55889  Lilium columbianum J. P. Tracy 1902-7-4 1755 Humboldt immediate vicinity Eureka (near Ryan's Slough Hill) 0 Comment
  CAS-BOT-BC508391  Lilium columbianum Doris K. Kildale 1927-6-26 3596 Humboldt Patrick's Point Comment
  HSC15574  Lilium kelloggii D. G. Hauger 1967-7-15 12 Humboldt Kneeland Rd, 0.25 mi. from Kneeland Post office Comment
  CAS-BOT-BC130729  Lilium pardalinum Doris Kildale 1931-5-16 10686 Humboldt Snow Camp Comment
  SEINET3992215  Lilium pardalinum Unknown 1948-9-5 18196 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1372 Comment
  HSC15580  Lilium rubescens Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC98357  Lilium vollmeri T. Jimerson, J. Pageau 1979-6-22 600 Humboldt Near Bee Mtn., close to the town of Orleans 656 Comment
  UC249575  Limnanthes douglasii Joseph P. Tracy 1921-4-24 5476 Humboldt Phillipsville Northern Coast Ranges (slopes facing South Fork of Eel River) 121 Comment
  CHSC23185  Limonium californicum Robert F. Thorne; P. Everett 1965-8-7 35211 Humboldt Samoa Peninsula. 0 Comment
  UC524126  Linaria vulgaris Ira L. Wiggins 1932-7-19 5890 Humboldt near Trinidad Head Comment
  JEPS12691  Linnaea borealis var. longiflora W. L. Jepson Jul 16 1902-Jul 23 1902 Humboldt Hupa Trail Trinity Summit; , Hupa Trail 2133 Comment
  CHSC1015  Linum bienne M. Underhill 1952-7-14 Humboldt Humboldt county. 15 Comment
  HSC43105  Linum grandiflorum Maralyn O'Meara 1974-5-14 358 Humboldt Along Hwy. 36 ca. 2.4 mi. E of Bridgeville. Comment
  HSC98814  Listera caurina Cara Witte 2008-7-7 843 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  HSC59585  Listera cordata var. nephrophylla Rick Lundquist 1979-5-13 84 Humboldt 0.5 mi. down private rd. to campground at Korbel, 1 mi. E of Blue Lake 30 Comment
  CAS-BOT-BC36146  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-8-15 2546 Humboldt Hoopa Mt. 792 Comment
  RSA697655  Lithocarpus densiflorus var. densiflorus Unspecified 1936-09 s.n. Humboldt Richardson's Grove (State Park). Comment
  UC902095  Lithophragma Joseph P. Tracy 1946-6-23 17591 Humboldt Kneeland Prairie 762 Comment
  HSC20227  Lithophragma affine G. N. Bos 1965-5-15 266 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  HSC32287  Lithophragma campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5633 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC432296  Lithophragma campanulatum Alice Eastwood; John Thomas Howell 1937-6-24 4861 Humboldt Road ro Horse Mt. Comment
  UC11920  Lithophragma glabrum J. Burtt Davy 1899-6-23 5795 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit 2133 Comment
  HSC20226  Lithophragma heterophyllum D. E. Anderson 1965-5-8 3649 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. 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-BC283402  Lolium multiflorum Malcom A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Salt marshes around Fields Landing Comment
  UCD66191  Lolium multiflorum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Around Fields Landing. Comment
  HSC27040  Lolium perenne Brad Klipfel 1973-8-24 283 Humboldt Roadside waste near Hwy. 101 Comment
  HSC99582  Lolium perenne K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 247 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
  SEINET10657158  Lolium perenne A. Arthur Heller 1923-7-9 Heller 13779 Humboldt Plentiful in a salt marsh between Arcata and Eureka in alkaline soil Comment
  HSC31213  Lomatium dasycarpum subsp. dasycarpum D. E. Anderson 1972-6-20 5735 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC70249  Lomatium macrocarpum M. A. Baker 1980-6-8 1914 Humboldt Near Buck Flat. 1554 Comment
  HSC75960  Lomatium macrocarpum Overton, Butler 1979-7-24 9738 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC35753  Lomatium macrocarpum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1997 Humboldt French Camp, Bald Hills. Comment
  JEPS12868  Lonicera ciliosa Joseph P. Tracy 1921-6-19 5836 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  UC535759  Lonicera hispidula var. vacillans Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  CAS-BOT-BC241481  Lonicera involucrata var. ledebourii L. R. Abrams 1916-7-18 6129 Humboldt Arcata to Trinidad Comment
  CAS-BOT-BC241483  Lonicera involucrata var. ledebourii Joseph P. Tracy 1937-6-20 15343 Humboldt Bear River, ten miles up stream from the mouth 152 Comment
  HSC62897  Lonicera involucrata var. ledebourii J. M. DiTomaso 1979-4-1 836 Humboldt 3 mi. S of Arcata, on Samoa Rd. Comment
  HSC69640  Lonicera involucrata var. ledebourii R. Kalal 1980-5-18 19 Humboldt Entrance to Dry Lagoon State Park, along abandoned Rd. 21 Comment
  UC1239558  Lonicera involucrata var. ledebourii Joseph P. Tracy 1933-5-20 12219 Humboldt Capetown Bear River 30 Comment
  UC1223426  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1936-6-3 14856 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  UC864751  Lotus purshianus var. purshianus Ira L. Wiggins 1930-7-22 4689 Humboldt between Blue Lake and Willow Creek (along bank of Redwood Creek); Redwood Creek Comment
  UC1223416  Lotus purshianus var. purshianus Joseph P. Tracy 1938-7-7 16031 Humboldt Cold Springs Grouse Mountain 1524 Comment
  UC176274  Lotus purshianus var. purshianus Joseph P. Tracy 1913-7-20 4386 Humboldt Redwood Creek, at crossing of Willow Creek road Northern Coast Ranges 304 Comment
  HSC43172  Lotus unifoliolatus var. unifoliolatus R. Sutherland 1976-8-13 6 .13876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  UC1223212  Luina hypoleuca Joseph P. Tracy 1944-8-13 17489 Humboldt near Romanzoffia Creek (along Trinity Highway); Willow Creek Canyon 365 Comment
  CAS-BOT-BC201187  Lupinus David Keil 1983-7-2 17319 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  UC1223281  Lupinus adsurgens Joseph P. Tracy 1946-6-15 17567 Humboldt at the Ski Lodge, Horse Mountain (Horse Mountain); Horse Mountain 1219 Comment
  HSC14763  Lupinus albicaulis R. Spellenberg 1965-6-13 1113 Humboldt About 2 mi. S of Hwy. through Hoopa, E side of Trinity River Comment
  HSC97974  Lupinus albicaulis Cara Witte 2007-7-9 468 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  SEINET200685  Lupinus albifrons Joseph P. Tracy 1926-5-9 7458 Humboldt Valley of South Yager Creek Comment
  HSC49997  Lupinus andersonii M. A. Baker 1979-6-7 789 Humboldt W slope of Snow Mtn. 762 Comment
  CHSC68783  Lupinus arboreus Vernon Oswald 1997-6-5 8534 Humboldt North spit of Humboldt Bay, west side of New Navy Base Road. 1.0 mi south of Hwy. 255. 6 Comment
  RSA296737  Lupinus arboreus var. arboreus J. P. Smith, T. W. Nelson 1977-6-30 9218 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA407031  Lupinus arboreus var. arboreus Bonnie C. Templeton 1964-6-13 10091 Humboldt Samoa, west of Arcata. Comment
  HSC14801  Lupinus bicolor R. T. Forester 1963-5-6 44 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  UC501364  Lupinus bicolor Mrs. H. P. Bracelin 1931-5-3 316 Humboldt Laytonville Comment
  SEINET10484916  Lupinus bicolor subsp. pipersmithii Charles Piper Smith 1948-5-10 Smith 48251 Humboldt Highway 101 - garberville, 2 miles north. Comment
  CAS-BOT-BC205382  Lupinus elmeri Charles Piper Smith 1947-7-14 47668 Humboldt Blake Lookout Road, South Fork Mountain, 0.3 miles north of Hyampom trail sign Comment
  SBBG3622  Lupinus formosus H. and M. Dearing 1939-5-24 3425 Humboldt W of Panther Gap, Dyerville, Honeydew Comment
  UC168984  Lupinus formosus var. formosus Joseph P. Tracy 1912-4-21 3576 Humboldt Bucksport; Northern Coast Region, Eureka, Bucksport 0 Comment
  SD113410  Lupinus latifolius Darley F. Howe 1962-5-21 3296 Humboldt 11.5 miles north of Garberville on Hwy 101 91 Comment
  HSC98986  Lupinus latifolius var. latifolius Cara Witte 2008-7-2 807 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC169060  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-7-3 3719 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  RSA12559  Lupinus latifolius var. latifolius Carl B. Wolf 1934-7-2 5880 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  UC1223254  Lupinus littoralis Joseph P. Tracy 1938-6-16 15940 Humboldt Brainards Point, along highway between Eureka and Arcata Comment
  JEPS61938  Lupinus onustus Joseph T. Gregory 1935-7-24 740 Humboldt open places at Corral Prairie; Trinity Summit, open places at Corral Prairie 1584 Comment
  HSC79442  Lupinus rivularis Kenneth Clark 1980-3-27 556 Humboldt On access trail to Dead Man's Gulch, Shelter Cove. 91 Comment
  HSC79484  Lupinus rivularis Kenneth Clark 1980-3-1 503 Humboldt Dead Man's Gulch, Shelter Cove 21 Comment
  HSC57899  Lupinus tracyi Overton, Butler 1979-7-31 11479 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC59591  Lupinus variicolor Rick Lundquist 1979-4-6 2 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  HSC74171  Luzula comosa M. A. Baker 1980-7-23 3182 Humboldt Near Orleans Mtn. 1859 Comment
  HSC74172  Luzula comosa M. A. Baker 1980-7-23 3155 Humboldt Near Orleans Mtn. 1859 Comment
  UC183719  Luzula comosa Joseph P. Tracy 1912-6-2 3642 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  UC1152128  Luzula comosa Joseph P. Tracy 1934-6-27 11040 Humboldt in open forest Horse Mountain Horse Mountain 1432 Comment
  UC1152144  Luzula comosa Joseph P. Tracy 1951-6-26 19546 Humboldt Snow Camp Meadow in boggy ground Snow Camp Meadow Comment
  UC183777  Luzula macrantha Joseph P. Tracy 1901-5-12 1087 Humboldt At Eureka; Northern Coast Region 0 Comment
  UC249748  Luzula parviflora Joseph P. Tracy 1923-6-24 6360 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, , nr High Prairie 1066 Comment
  HSC83992  Luzula parviflora L. P. Janeway 1983-5-1 253 Humboldt Along dirt rd. E of HSU water tank 61 Comment
  SEINET8717658 Image available Luzula parviflora H. E. Parks, S. T. Parks 1952-1 22446 Humboldt Bishop Pine Lodge. Trinidad. Comment
  HSC102061  Luzula parviflora subsp. parviflora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-7-12 1162 Humboldt Patterson Meadows 1566 Comment
  UC183776  Luzula subsessilis Joseph P. Tracy 1904-4-24 2032 Humboldt Northern Coast Region. Sand Dunes of Ocean Beach at Humboldt Bay Comment
  UC534971  Lycopodium clavatum H. E. and W. K. Parks 1932-7-30 1132 Humboldt Hammond Lumber Company Camp 21 Trinidad 152 Comment
  SEINET6166096  Lycopodium clavatum W. Roderick 1967-9-15 s.n. Humboldt East of Trinidad, Camp 18 Georgia-Pacific Co. 30 Comment
  UC577349  Lycopus uniflorus H. E. Parks and Joseph P. Tracy 1924-8-3 6765 Humboldt Big Lagoon 6 Comment
  UCR179284  Lysichiton americanus R. G. Swinney 1968-3-29 238 Humboldt East of Humboldt State College, Arcata 152 Comment
  SEINET11261199  Lythrum hyssopifolia W. J. Ferlatte, B. D. Rogers 1966-8-15 3132 Humboldt North Bank Road, 2 miles north of Arcata.; 0 Comment
  HSC100440  Madia elegans Carl C. Marshall Jun 1885 97 Humboldt Hills. Comment
  CAS-BOT-BC344357  Madia exigua L. R. Abrams 1916-7-11 5995 Humboldt Between Blocksberg & Bridgeville Comment
  UC204700  Madia exigua Joseph P. Tracy 1918-7-5 5006 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC176444  Madia glomerata J. P. Tracy 1902-8-10 1769 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC343016  Madia gracilis Joseph P. Tracy 1937-7-29 15596 Humboldt South Fork Mountain. West slope near top, at Hyampom Trail 1676 Comment
  CAS-BOT-BC343031  Madia gracilis David D. Keck 1944-7-11 5500 Humboldt Halfway between Upper Mattole and Honeydew, 12.3 miles S.E. of Petrolia, Mattole River 121 Comment
  HSC74087  Madia gracilis Thomas W. Nelson, James Nelson 1976-5-30 2615 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC35590  Madia gracilis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2001 Humboldt Along Bald Hills Rd., just W of French Camp Comment
  HSC79470  Madia gracilis Kenneth Clark 1980-5-10 634 Humboldt Along access trail to Dead Man's Gulch 122 Comment
  SEINET11810616  Madia gracilis subsp. pilosa J. P. Tracy 1950-1 19026 Humboldt Sproston's Place, 3 mi S of Burr Valley 1067 Comment
  UC581812  Madia sativa Joseph P. Tracy 1936-8-24 15178 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC40133  Madia sativa Thomas W. Nelson 1976-8-10 3167 Humboldt Beside Hwy. 101 at the turnoff to Sunnybrae Comment
  RSA134601  Mahonia nervosa P. C. Everett, E. K. Balls 1959-10-25 23966 Humboldt 8.8 mi. ne. from Blue Lake, U.S. Hwy 299, Arcata to Willow Creek. 274 Comment
  HSC15596  Maianthemum dilatatum W. R. Brigham 1962-5-19 6 Humboldt S of Big Lagoon. Comment
  CAS-BOT-BC508508  Maianthemum dilatatum M. Louise Hutchinson 1913-4-1 s.n. Humboldt Eureka Comment
  HSC15597  Maianthemum dilatatum W. D. Stevens 1964-5-12 15 Humboldt E end of 14th St., Arcata Comment
  HSC15599  Maianthemum dilatatum D. B. Bader 1963-5-1 43 Humboldt Second of the Clam Beach lagoons N end, W of Hwy. 101 Comment
  RSA41939  Maianthemum dilatatum H. C. Cantelow 1935-5-30 s.n. Humboldt 8 miles north of Orick Comment
  SEINET12043868  Maianthemum dilatatum H. C. Cantelow 1936-1 s.n. Humboldt 5 mi N of Orick Comment
  SEINET12044316  Maianthemum dilatatum H. E. Parks 1932-1 4289 Humboldt Bishop Pine Lodge, Trinidad Comment
  UC303039  Maianthemum dilatatum Joseph P. Tracy 1926-4-25 7414 Humboldt Grizzly Creek on Van Duzen R. Northern Coast Ranges, Van Duzen R., Grizzly Creek 91 Comment
  HSC41341  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1974-9-7 559 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  HSC57896  Maianthemum racemosum subsp. amplexicaule Overton, Butler 1979-7-31 11476 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  CAS-BOT-BC511458  Maianthemum racemosum subsp. amplexicaule Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  HSC15654  Maianthemum racemosum subsp. amplexicaule J. R. Eichelberger 1964-5-5 71 Humboldt 0.5 mi. E of entrance to Azalea State reserve Comment
  HSC48751  Maianthemum stellatum Brad Klipfel 1973-6-10 77 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA407376  Maianthemum stellatum Lyman Benson 1929-7-19 1859 Humboldt Dyerville to Matole River. Comment
  CAS-BOT-BC512772  Maianthemum stellatum Doris K. Kildale 1926-3-26 1648 Humboldt Old Fortuna Road 15 Comment
  HSC73820  Marah oregana Gail Newton 1980-6-7 135 Humboldt Near Brush Mtn. 1128 Comment
  UC168942  Marah oregana Joseph P. Tracy 1911-8-27 3532 Humboldt Eureka Northern Coast Region 0 Comment
  HSC12785  Marah oregana M. J. Athey 1970-11-2 7 Humboldt Trinidad, just after Westhaven turnoff on Hwy. 101, and Havenway Comment
  JEPS42491  Marah oregana W. L. Jepson and W. W. Mott 1903-6-23 2207 Humboldt White Thorn Comment
  HSC14972  Medicago polymorpha Francis Winter 1960-4-23 Humboldt 4 mi. N of Dollar Ranch, on Korbel-Maple Creek Rd. 244 Comment
  RSA249711  Medicago polymorpha Robert F. Thorne 35258 Humboldt N edge of Eureka, E of Hwy. 101. 5 Comment
  UC277170  Melica californica Joseph P. Tracy 1921-5-30 5491 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC1132260  Melica geyeri H. S. Yates 1936-6-17 5717 Humboldt South Fork Pk , Burr Valley (Burr Valley) 1036 Comment
  CAS-BOT-BC281326  Melica harfordii Harley P. Chandler 1901-6-1 1477 Humboldt North Coast Ranges. Klamath River 365 Comment
  HSC75447  Melica spectabilis J. O. Sawyer 1980-7-18 3606 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC97958  Melica subulata Cara Witte, Michael Scott 2007-6-22 340 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  UCD88652  Melica subulata A. H. Murphy 1951-5-18 41 Humboldt K. Roscoe Ranch, Upper Mattole. Comment
  HSC104095  Melilotus albus Monica Rodriguez, William A. Worley 2015-3-21 23 Humboldt Along South Fork Rd, 8.6 mi. from 199 Redwood Hwy. Comment
  HSC26919  Melilotus albus Brad Klipfel 1973-7-30 218 Humboldt Samoa Rd., near Mad River Slough Comment
  HSC28183  Melilotus albus Richard Curtis 1973-9-28 27 Humboldt Along R.R. tracks near mouth of Nanning Cr., across Eel River from Rio Dell Comment
  UC1222473  Melilotus officinalis Joseph P. Tracy 1949-7-7 18337 Humboldt Blue Slide Van Duzen River 91 Comment
  POM47605  Melissa officinalis Unspecified 1923-7-29 91 Humboldt Rohnerville. Damp flat. 15 Comment
  RSA152465  Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt Field s Landing, 2 miles from town 6 Comment
  UC535756  Mentha canadensis Eleanor Armstrong 1934-7-18 1127 Humboldt Richardson Grove; Sandbar 121 Comment
  UC1239692  Mentha pulegium Joseph P. Tracy 1916-9-5 4772 Humboldt 4 mi above mouth of South Fork of Eel River; South Fork of Eel River 60 Comment
  UCD117673  Menziesia ferruginea T. I. Storer 1931-7-1 2251 Humboldt Coast. Comment
  UCD102807  Micranthes californica K. Esau 1935-4-8 s.n. Humboldt Fort Seward. Comment
  CAS-BOT-BC348834  Microseris douglasii subsp. douglasii K. L. Chambers 1969-5-25 2923 Humboldt On road to Harris 5.2 mi. E of the freeway overpass at Garberville Comment
  UC1199445  Microseris laciniata subsp. laciniata Harold E. Parks and Joseph P. Tracy 1942-5-16 11569 Humboldt vicinity Garberville 152 Comment
  UC204745  Microseris laciniata subsp. laciniata Joseph P. Tracy 1918-7-3 4997 Humboldt Shelter Cove Northern Coast Ranges, Shelter Cove 15 Comment
  RSA167197  Microseris lindleyi Joseph P. Tracy 1947-5-10 17676 Humboldt Near Briceland Comment
  HSC73576  Microseris nutans M. A. Baker 1980-7-19 3011 Humboldt Near Bret Hole. 1814 Comment
  HSC70961  Microsteris gracilis Thomas W. Nelson 1977-6-15 3455 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  POM193012  Microsteris gracilis subsp. gracilis H. E. Parks, Joseph P. Tracy 1930-5-25 0795 Humboldt Laribee Valley. 793 Comment
  RSA167416  Microsteris gracilis subsp. gracilis Joseph P. Tracy 1950-5-7 18648 Humboldt Valley of South Yager Creek 762 Comment
  UC1196767  Mimulus alsinoides Joseph P. Tracy 1946-6-23 175900 Humboldt Kneeland Prairie 762 Comment
  HSC26809  Mimulus alsinoides Thomas W. Nelson 1971-4-24 401 Humboldt Overlooking the East Fork of Willow Creek Comment
  HSC20686  Mimulus aurantiacus var. aurantiacus S. R. Johnson 1965-4-16 35 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC20687  Mimulus aurantiacus var. aurantiacus R. Spellenberg 1965-6-14 1136 Humboldt Hwy. 299, 1 mi. E of Blue Lake Comment
  JEPS10232  Mimulus aurantiacus var. aurantiacus Lincoln Constance 1934-5-26 657 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  RSA550829  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-6 1115 Humboldt Just N of Miranda. 0.1 mi s of bridge over Bridge Creek along Hwy 254 (parallels Hwy 101) 101 Comment
  UC1011928  Mimulus aurantiacus var. aurantiacus Francis W. Pennell 1940-7-8 26109 Humboldt above beach s Trinidad; Route 101 30 Comment
  UC1196777  Mimulus cardinalis Joseph P. Tracy 1921-9-4 5955 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC20706  Mimulus cardinalis David Adams 1960-8-20 Humboldt Near Eel River at Whitlow (Sequoia) 60 Comment
  HSC20707  Mimulus dentatus D. E. Anderson 1965-9-5 4074 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC20709  Mimulus dentatus R. D. Zortman 1963-5-12 41 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC72408  Mimulus dentatus J. P. Smith 1973-5-26 6821 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  POM87667  Mimulus dentatus L. R. Abrams, R. C. Bacigalupi 1922-6-25 8279 Humboldt Big Lagoon, south of Orick. Comment
  JEPS22954  Mimulus dentatus Volney Rattan June 1882 Humboldt Humboldt Bay Comment
  UC1196774  Mimulus dentatus J. P. Tracy 1901-6-10 1126 Humboldt Forest Park Eureka 0 Comment
  UC418983  Mimulus dentatus H. E. Parks May 1930 Humboldt above Carlotta; Van Duzen River Comment
  HSC20721  Mimulus guttatus J. F. Knezevich 1968-5-14 432 Humboldt 13 mi. S of Ferndale at Cape Mendocino 0 Comment
  HSC20741  Mimulus guttatus S. R. Johnson 1965-4-16 40 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC90636  Mimulus guttatus Gail Newton 1983-6-5 3554 Humboldt Elk River Wildlife Area, Eureka Comment
  JEPS10474  Mimulus guttatus Lincoln Constance 1934-5-26 683 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  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
  CDA41715  Mimulus kelloggii K. Esau 1935-4-23 s.n. Humboldt Ft. Seward. 0 Comment
  UC582599  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  HSC56179  Mimulus moschatus G. L. Clifton, Griswold 1979-8-1 12094 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC582596  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15570 Humboldt halfway between Cold Springs and Blake Lookout; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC582597  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15597 Humboldt Hyampon Trail South Fork Mountain 1676 Comment
  HSC49137  Mimulus pilosus R. Becking 1979-7-29 Humboldt Van Duzen River at Cheatam Grove E of Carlotta Comment
  UC1103339  Mimulus primuloides subsp. primuloides Joseph P. Tracy 1919-9-22 5266 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  POM192727  Minuartia cismontana H. E. Parks, Joseph P. Tracy 1930-5-25 0866 Humboldt Laribee Valley. Comment
  JEPS49686  Mitella caulescens Joseph P. Tracy 1923-6-24 6361 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC24390  Mitella diversifolia J. O. Sawyer 1970-6-24 2252 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC70773  Mitella diversifolia R. York 1980-5-17 553 Humboldt Near Le Perron Peak 1066 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
  UC11410  Mitella diversifolia J. Burtt Davy 1899-6-23 5753 Humboldt about half way to summit; North Coast Ranges, Trinity Summit Comment
  UC14518  Mitella ovalis W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  HSC45055  Moehringia macrophylla R. Sutherland 1978-4-22 2 .22478 Humboldt Ridge top along King's Crest Traiil 991 Comment
  HSC49983  Moehringia macrophylla M. A. Baker 1979-6-7 788 Humboldt N bank of road to Snow Mtn. 610 Comment
  HSC70686  Monardella villosa Gail Newton 1980-7-15 1573 Humboldt Near Sims Mtn. 1311 Comment
  UC577347  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15425 Humboldt Vicinity of Garberville 121 Comment
  BLMAR589  Monardella villosa subsp. villosa Jennifer Wheeler 2010-7-13 589 Humboldt King range, Panther Gap Road 792 Comment
  SEINET4173669 Image available Monardella villosa var. glabella Joseph P. Tracy 1947-1 17782 Humboldt Trinity Summit; ridge top one mile west of Mud Springs, in serpentine formation 1158 Comment
  CAS-BOT-BC444806  Montia diffusa Volney Rattan 1875-1-1 s.n. Humboldt Unspecified Comment
  HSC98897  Montia fontana Cara Witte 2008-6-9 693 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1454 Comment
  CAS-BOT-BC445158  Montia parvifolia W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  CAS-BOT-BC445165  Montia parvifolia L. R. Abrams; R. Bacigalupi 1922-6-25 8282 Humboldt Big Lagoon south of Orick Comment
  UC275280  Montia parvifolia Joseph P. Tracy 1923-6-20 6311 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  JEPS43291  Montia parvifolia W. L. Jepson 1902-6-30 1961 Humboldt from Ukiah to the Hupa Indian Reservation (Redwood Creek); Redwood Creek Comment
  HSC16100  Morella californica P. Markle 1962-5-24 63 Humboldt Edge of 18th St. in Arcata 30 Comment
  HSC58648  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-7-31 11669 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UCD86717  Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit. 1828 Comment
  HSC103302  Myosotis latifolia Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-28 3016 Humboldt Above College Cove (north of Trinidad State Beach); along path to beach. 61 Comment
  HSC104051  Myosotis latifolia E. R. Fyer 2015-4-29 32 Humboldt Arcata Community Forest 166 Comment
  HSC31423  Myosurus minimus Rudy Becking 1974-5-5 Humboldt Samoa dunes near USCG Station Comment
  UC1196177  Myosurus minimus Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch); Cathey Ranch 304 Comment
  HSC62986  Myriophyllum hippuroides David Wheeler 1979-4-21 76 Humboldt 14 mi. up Snow Camp Rd., 4 mi. past Ward Rd., in Lake Prairie Comment
  UC526762  Nassella lepida Joseph P. Tracy 1933-5-20 12247 Humboldt hillside near Petrolia; Northern Coast Ranges, Mattole Valley 152 Comment
  UCD87900  Nassella lepida A. H. Murphy 1951-5-18 s.n. Humboldt 2.5 mi. northwest of Petrolia on rocky road cut along county road. Petrolia to Ferndale. Comment
  CAS-BOT-BC60345  Nasturtium officinale Doris K. Kildale 1926-5-2 1901 Humboldt Willow Creek Flat. 152 Comment
  HSC90662  Nasturtium officinale Gail Newton 1982-6-10 3637 Humboldt Elk River Wildlife Area, Eureka Comment
  JEPS69507  Navarretia capillaris Joseph P. Tracy 1932-7-10 10374 Humboldt Corral Prairie , Corral Prairie (Trinity Summit) 1584 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
  UC1197902  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1908-6 2931 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC1197896  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1933-7-9 12646 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  RSA67625  Navarretia mellita P. A. Munz 1951-7-15 16545 Humboldt Ca. 3 mi. N of Willow Creek 137 Comment
  JEPS70445  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point Northern Caost Ranges 152 Comment
  UC1198524  Navarretia tagetina Joseph P. Tracy 1942-7-1 17362 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  JEPS70522  Navarretia viscidula Joseph P. Tracy 1916-6-20 4732 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC1103814  Nemophila menziesii Joseph P. Tracy 1923-6-24 6358 Humboldt Murphy Ridge Bald Mt., Murphy Ridge (Balt Mt.) 1066 Comment
  CDA40359  Nemophila menziesii var. atomaria J. Breton and A. Livingston 2005-6-8 6 Humboldt Northwestern California; 1.7 mi. south of Highway 299 on Titlow Hill Rd. Comment
  JEPS1791  Nemophila menziesii var. atomaria Lincoln Constance 1934-6-15 879 Humboldt summit of Grasshopper Peak; Bull Creek Region, South Fork Eel River, Grasshopper Peak 975 Comment
  SBBG6129  Nemophila menziesii var. atomaria H. and M. Dearing 1939-4-24 3424 Humboldt near Dyerville Comment
  HSC34946  Nemophila menziesii var. atomaria Robert M. Specht 1975-4-9 120 Humboldt 2 3/4 mi. N of Trinidad at Scotty Point 30 Comment
  POM73962  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt Near Hydesville. 60 Comment
  UC562582  Nemophila menziesii var. atomaria Joseph P. Tracy 1923-4-15 6191 Humboldt at Berry's North Coast Ranges, , Berry's (Redwood Creek) 274 Comment
  UC144103  Nemophila parviflora Joseph P. Tracy 1909-6-20 3001 Humboldt 3 mi above Wrangletown (Freshwater Creek, Region about Humboldt Bay); Northern Coast Region, Humboldt Bay region, Freshwater Creek 0 Comment
  JEPS12285  Nicotiana attenuata Joseph P. Tracy 1916-9-5 4763 Humboldt 4 mi above South Fork of Eel River mouth; Northern Coast Ranges 60 Comment
  JEPS12382  Nicotiana quadrivalvis Lincoln Constance 1934-6-18 896 Humboldt border North Dyerville Flat (near South Fork Railroad Station and P.O.); South Fork Eel River, Bull Creek Region Comment
  HSC54573  Notholithocarpus densiflorus Overton, Butler 1979-7-24 9607 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UCD110186  Notholithocarpus densiflorus B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  UC1198788  Oemleria cerasiformis Joseph P. Tracy 1933-5-20 12218 Humboldt Capetown; on Bear River 30 Comment
  UC1222315  Oemleria cerasiformis Joseph P. Tracy 1950-4-20 18618 Humboldt 2 mi w Dinsmore's (nw slope of Buck Mountain, lower slopes); Buck Mountain 762 Comment
  UCD81853  Oenanthe sarmentosa Chuck Hughes 2009-6-18 102 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  JEPS14167  Oenanthe sarmentosa Lincoln Constance 1934-6-18 893 Humboldt border of N. Dyerville Flat (near S. Fork R.R. Station & P.O.); Bull Creek Region, S. Fork Eel R., N. Dyerville Flat Comment
  HSC49088  Oenothera elata subsp. hookeri Patricia Shesgreen 1978-8-12 134 Humboldt 1/2 mi. E of Samoa Cookhouse on Vance Ave., Samoa. Comment
  HSC37886  Olsynium douglasii var. douglasii Thomas W. Nelson 1976-4-3 2288 Humboldt On large rock at head of Goat Rock slide, N side of Van Duzen River Comment
  JEPS11679  Orobanche californica subsp. californica Joseph P. Tracy 1924-8-3 6761 Humboldt Big Lagoon. Comment
  RSA0070495  Orobanche californica subsp. californica Edward Lee 1934-8-17 1152 Humboldt East shore of Big Lagoon, 35 miles north of Eureka. 3 Comment
  UC1197443  Orobanche uniflora subsp. occidentalis Mrs. Frank A. Graham 1921-4-1 Humboldt Northern Coast Ranges. Trinity River Valley, near Willow Creek. Comment
  UC1197565  Orthilia secunda Joseph P. Tracy 1919-9-18 5251 Humboldt Trinity Summit 1524 Comment
  UC1197575  Orthilia secunda Joseph P. Tracy 1935-7-23 14156 Humboldt Trinity Summit, Lower end of Brett Hole 1584 Comment
  RSA80283  Orthocarpus purpurascens var. latifolius F. W. Peirson 1926-7-14 7064 Humboldt Table Bluff Lighthouse, south of Eureka. Comment
  HSC21583  Osmorhiza berteroi R. D. Zortman 1963-5-15 49 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  JEPS93971  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt at the s. tip of the North Spit of Humboldt Bay Samoa Dunes Recreation Area (along rd. leading into the recreation area); Humboldt Bay, Samoa Dunes Recreation Area 6 Comment
  CHSC32846  Oxalis oregana Lora L. Anderson 1981-4-25 3 Humboldt Ca. 1/2 mi s of Redwood Creek, 4 mi n on Redwood Valley Rd. off hwy 299 w 16 mi ne of Arcata. 457 Comment
  HSC16704  Oxalis oregana Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  UC502973  Oxalis pes-caprae Joseph P. Tracy 1927-3-23 7845 Humboldt Eureka Northern Coast Ranges Comment
  UC1103428  Oxalis trilliifolia Joseph P. Tracy 1932-7-15 10584 Humboldt ridges e Corral Prairie (Trinity Summit); Klamath Mtns 1828 Comment
  UC1103418  Oxalis trilliifolia Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16665 Humboldt near Grouse Mt. (Friday Ridge); Friday Ridge 1371 Comment
  UC187239  Panicum acuminatum var. acuminatum Joseph P. Tracy 1900-8-26 925 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  CAS-BOT-BC253706  Panicum capillare Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC526845  Panicum capillare Joseph P. Tracy 1930-10-12 9207 Humboldt Alton to Fortuna (Eel River on bars); Northern Coast Region, Eel River 15 Comment
  HSC13258  Parapholis incurva D. E. Anderson 1965-6-10 3794 Humboldt Harbor area of Eureka. Comment
  RSA246893  Parapholis incurva R. F. Thorne, P. Everett 1965-8-8 35274 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  SEINET200977 Image available Parapholis incurva Joeseph P. Tracy 1936-6-6 14860 Humboldt Eureka, CA 3 Comment
  HSC12791  Parentucellia viscosa Jana Kattenhorn 1970-10-14 47 Humboldt Big Lagoon Comment
  RSA44543  Paspalum distichum Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  HSC75415  Paxistima myrsinites J. O. Sawyer, M. A. Ericksen 1980-7-18 3645 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  UC902125  Paxistima myrsinites Joseph P. Tracy 1942-6-23 17245 Humboldt 2 mi. e. Box Camp; Trinity Summit 1524 Comment
  UC146230  Pedicularis densiflora Joseph P. Tracy 1908-6-8 2637 Humboldt Kneeland Praire; Northern Coast Ranges 762 Comment
  HSC28196  Pedicularis densiflora Thomas W. Nelson 1971-4-4 368 Humboldt Bridgeville Comment
  UC582558  Pedicularis densiflora Joseph P. Tracy 1927-5-15 8060 Humboldt near summit on road w from Hoopa to Bair's; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  JEPS27746  Pedicularis groenlandica Joseph P. Tracy 1925-7-5 7180 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC55334  Pedicularis racemosa Terry Griswold, Marvin Butler 1979-7-12 7178 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  JEPS19083  Pellaea brachyptera Joseph P. Tracy 1937-7-24 15516 Humboldt Devil's Hole Trinity Summit 1676 Comment
  CAS-BOT-BC67624  Pellaea mucronata Joseph P. Tracy 1933-6-13 12561 Humboldt Hoopa Mountain - near summit on road west from Hoopa to Bair's. 1066 Comment
  HSC44545  Penstemon anguineus Brad Klipfel 1973-7-15 164 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55678  Penstemon anguineus Walter Overton, Marvin Butler 1979-7-26 9929 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  JEPS26256  Penstemon anguineus Joseph P. Tracy 1919-9-18 5250 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1524 Comment
  SD61052  Penstemon anguineus Darley F. Howe 1964-8-7 3945 Humboldt 8.2 mi. from #96 on Mill Creek Road. Hoopa Valley 1067 Comment
  UC1222463  Penstemon anguineus Joseph P. Tracy 1947-7-5 17817 Humboldt near Box Camp (Trinity Summit); , near Box Camp 1524 Comment
  UC577417  Penstemon anguineus Joseph P. Tracy 1932-7-12 10454 Humboldt near Corral Prairie (Fir woods); Trinity Summit, Corral Prairie 1584 Comment
  RSA63666  Penstemon anguineus Milo S. Baker 1947-8-10 11911 Humboldt Near end of Forest Rd from Hoopa towards Trinity Summit. 1372 Comment
  HSC102131  Penstemon deustus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1035 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC73698  Penstemon laetus subsp. sagittatus M. A. Baker 1980-7-15 2971 Humboldt Near Whiting Ridge. 1341 Comment
  JEPS11630  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-2 15395 A Humboldt on ridge 2 mi e Groves Prairie; Trinity Summit 1524 Comment
  UC1222426  Penstemon laetus var. sagittatus Joseph P. Tracy 1926-6-20 7645 Humboldt Horse Mountain 1432 Comment
  UC1222785  Penstemon laetus var. sagittatus Joseph P. Tracy 1951-6-26 19588 Humboldt n side Board Camp Mountain extreme head of Redwood Creek, n side Board Camp Mountain (at extreme head of Redwood Creek) 1541 Comment
  JEPS85630  Penstemon newberryi var. berryi W. L. Jepson July 16 - 23, 1902 2107 Humboldt Trinity Summit 2133 Comment
  UC577416  Penstemon newberryi var. berryi Joseph P. Tracy Jul 16-19 1930 8953 Humboldt South Fork Mountain, open glades along summit near Blake lookout Northern Coast Ranges 1737 Comment
  HSC56044  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-7-31 11619 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC71615  Pentagramma triangularis subsp. triangularis Henry M. Pollard 1946-9-7 s.n. Humboldt Woodson Mine, Orleans Mt. Comment
  HSC102578  Perideridia gairdneri subsp. borealis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1565 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1197128  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1937-8-22 15673 Humboldt foothills 3 mi s Fields Landing; Northern Coast Ranges, around Humboldt Bay 15 Comment
  HSC75963  Perideridia kelloggii Overton, Butler 1979-8-2 12586 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1389971  Perideridia kelloggii T. I. Chuang, A. Weston, and I. Fukuda 1963-7-4 5877 Humboldt 1 mi s Klamath River (near Willow Creek) Comment
  UC183948  Perideridia kelloggii Joseph P. Tracy 1912-8-3 3967 Humboldt Dinsmore's Ranch Northern Coast Ranges, valley of Van Duzen River (opposite Buck Mt.) 762 Comment
  HSC70535  Perideridia parishii subsp. latifolia Gail Newton 1980-7-20 1643 Humboldt Near Bell Swamps 1426 Comment
  HSC99999  Persicaria capitata J. P. Smith 2009-11-17 12697 Humboldt Mouth of storm drain, at 7th & E in Eureka Comment
  CAS-BOT-BC413711  Persicaria hydropiper Henry M. Pollard 1956-10-9 s.n. Humboldt Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  CAS-BOT-BC413713  Persicaria hydropiper Malcom A. Nobs; S. Galen Smith 1949-8-11 1336 Humboldt Marsh at eastern shore of Stone Lagoon Comment
  UCD99742  Persicaria maculosa James Payne Smith Jr.; Advanced Plant Taxonomy Class 1971-10-6 4950 Humboldt End of Murray Road in McKinleyville. Comment
  CAS-BOT-BC419193  Persicaria maculosa Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC98989  Petasites frigidus var. palmatus Cara Witte 2008-6-4 680 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1276 Comment
  HSC65092  Petrorhagia dubia J. P. Smith, J. O. Sawyer 1976-5-2 8625 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  JEPS11985  Phacelia bolanderi Rimo Bacigalupi with G. T. Robbins 1954-6-28 4657 Humboldt 2 mi n Hoopa; Hoopa Indian Reservation, Trinity River 91 Comment
  JEPS1444  Phacelia bolanderi Lincoln Constance 1934-5-26 687 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek region 45 Comment
  SD90173  Phacelia bolanderi Benjamin C. Stone 1952-6-25 124 Humboldt Hwy 101, 15 mi south of Klamath 14 Comment
  RSA201448  Phacelia egena Alice Eastwood, J. T. Howell 1937-6-23 4759 Humboldt Dinsmore s. Comment
  HSC76575  Phacelia hastata Teresa Prendusi 1981-7-24 485 Humboldt Near Whiteys Peak 1585 Comment
  HSC60087  Phacelia heterophylla M. A. Baker 1978-5-6 478 Humboldt 2 km. S of Weitchpec Comment
  HSC38128  Phacelia heterophylla subsp. virgata Thomas W. Nelson, James Nelson 1976-5-30 2618 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS2079  Phacelia heterophylla subsp. virgata Lincoln Constance 1934-5-29 731 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek region 365 Comment
  UC562581  Phacelia malvifolia Joseph P. Tracy 1927-6-8 8118 Humboldt Trinidad 3 Comment
  UC1239735  Phacelia procera Joseph P. Tracy Jul 16 1930-Jul 19 1930 9084 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC258865  Phalaris aquatica John Thomas Howell 1937-7-31 3731 Humboldt 4 miles north of Loleta Comment
  HSC93782  Phalaris arundinacea Gordon Leppig 1998-5-25 793 Humboldt Arcata, Alder Grove Pond 18 Comment
  CAS-BOT-BC76573  Philadelphus lewisii Alice Eastwood 1921-7-21 10655 Humboldt Carlotta Comment
  UC34058  Phleum alpinum J. P. Tracy 1901-5-30 1106 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC71667  Phlox adsurgens Gail Newton 1980-6-24 554 Humboldt Near Ladder Rock 1500 Comment
  SEINET12279173  Phlox adsurgens H. P. Chandler 1901-1 1534 Humboldt Klamath River 427 Comment
  SJSU914  Phlox adsurgens J. W. Tilden 1946-6-20 1009 Humboldt Bluff Cr c. 1.5 mi above junction with Klamath R Comment
  RSA183632  Phlox diffusa subsp. diffusa D. E. Anderson 1965-4-24 3529 Humboldt Horse Mountain 1524 Comment
  UC604655  Phlox gracilis Joseph P. Tracy 1938-4-5 15702 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC672850  Phoradendron juniperinum Joseph P. Tracy 1930-7-10 8770 Humboldt Brannan Mt. 1066 Comment
  HSC60287  Phoradendron serotinum subsp. tomentosum Phyllis Krieg 1979-5-14 Humboldt Korbel Post Office 30 Comment
  CHSC1563  Physocarpus capitatus A. Small 1954-6-4 Humboldt Coastal near Capetown. Comment
  CAS-BOT-BC78145  Picea breweriana Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  JEPS46729  Picea sitchensis J. P. Tracy Feb. 1901 Humboldt Humboldt Bay Comment
  SD51259  Picea sitchensis Darley F. Howe 1961-8-1 Humboldt 3 miles north of Arcata on Highway #101 Comment
  UC484045  Picea sitchensis Carl B. Wolf 1930-10-28 Humboldt 5 mi s Ferndale (on road to Petrolia) 152 Comment
  HSC1482  Pinus contorta S. J. Hawks 1965-3-12 5 Humboldt 0.25 mi. W of Fairhaven Comment
  UCSB10482  Pinus contorta Phillips, Priscilla 1958-6-7 Humboldt Patrick's Point, north of Trinidad Comment
  HSC26813  Pinus jeffreyi J. O. Sawyer 1973-3-12 2477 Humboldt SE of Kerr Peak on Manhart Ranch, Bulk Collection # 44 457 Comment
  UC502909  Pinus lambertiana Joseph P. Tracy 8961 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC54513  Pinus monticola Overton, Butler 1979-7-23 9429 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC37665  Pinus ponderosa R. Sutherland 1976-8-21 Humboldt Bulk Collection # 108 726 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
  JEPS79893  Piperia elongata Joseph P. Tracy 1925-7-12 7213 Humboldt near the South Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1196412  Piperia unalascensis Joseph P. Tracy 1926-5-30 7521 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UC1222185  Piperia unalascensis Joseph P. Tracy 1950-6-15 18819 Humboldt 7 mi n Harris (at Huestis Rock, on ne side of Mail Ridge); Mail Ridge, Huestis Rock 822 Comment
  BLMAR587  Piperia unalascensis Jennifer Wheeler 2010-7-13 587 Humboldt King range, along Panther Gap Road 792 Comment
  CAS-BOT-BC169835  Plagiobothrys Doris K. Kildale 1929-4-27 7450 Humboldt Willow Creek - Salya road along Trinity River. 3 miles N of Willow Comment
  HSC70400  Plagiobothrys bracteatus M. A. Baker 1980-6-7 1845 Humboldt Near Ammon Creek 732 Comment
  JEPS61027  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC24546  Plagiobothrys reticulatus Harley P. Chandler May, 1901 1172 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  UC708093  Plagiobothrys reticulatus C. V. Piper 1921-5-22 5011 Humboldt Eureka Comment
  UCD120865  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove, Trinidad. 64 Comment
  JEPS79948  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17115 Humboldt Englewood Prairie 91 Comment
  UC1222216  Plagiobothrys reticulatus Joseph P. Tracy 1946-5-30 17541 Humboldt open flat by old Strong's District School House (5 mi e of town, Carlotta, Riverside Park); Carlotta, Riverside Park 60 Comment
  UC526825  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1932-6-26 10274 Humboldt Fort Baker Ranch North Coast Ranges, Fort Baker Ranch 762 Comment
  JEPS60967  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1921-6-12 5825 Humboldt Butter Valley Northern Coast Ranges 152 Comment
  JEPS68130  Plagiobothrys tenellus Joseph P. Tracy 1921-4-24 5649 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC78093  Plagiobothrys tenellus W. W. Price 1890-6-30 Humboldt Jarnigan's Comment
  UC1222194  Plagiobothrys trachycarpus Joseph P. Tracy 1942-5-16 17355 Humboldt 1 mi ne Garberville 304 Comment
  SEINET8665540  Plantago australis subsp. hirtella J. P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka Comment
  JEPS14281  Plantago erecta Joseph P. Tracy 1946-6-2 17553 Humboldt near Samoa; Humboldt Bay 6 Comment
  UC1196136  Plantago erecta Joseph P. Tracy 1900-6-5 836 Humboldt Busksport Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC36625  Platanthera dilatata var. leucostachys J. D. Ackerman 1975-7-11 539 Humboldt South end of Big Lagoon, near the boat ramp Comment
  SEINET10296821  Platanthera dilatata var. leucostachys Unknown 1933-1 Humboldt Comment
  UC1196422  Platanthera leucostachys Joseph P. Tracy 1937-7-25 15536 Humboldt head Little Hors-Linto Creek; Trinity Summit, head Little Hors-Linto Creek 1371 Comment
  HSC31185  Platanthera sparsiflora D. E. Anderson 1972-6-20 5753 Humboldt N slope of Horse Mtn. Comment
  UC1196416  Platanthera sparsiflora Joseph P. Tracy 1926-6-27 7671 Humboldt House Mountain Northern Coast Ranges 1463 Comment
  CAS-BOT-BC91644  Platystemon californicus Kenneth Clark 1981-5-24 1390 Humboldt Sherlter Cove. Abalone Point. 15 Comment
  HSC16789  Platystemon californicus J. P. Tracy 1904-4-24 2020 Humboldt Humboldt Bay Comment
  RSA79377  Platystemon californicus var. californicus E. K. Balls, Lee W. Lenz 1952-5-12 17203 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  HSC75692  Pleuropogon refractus Bill Copeland 1980-6-26 303 Humboldt Near Murphy Meadow 914 Comment
  UC1258213  Pleuropogon refractus Paul But 1975-6-1 P 13 Humboldt about 10 mi n of Orick; Prairie Creek Redwood State Park Comment
  UC183532  Poa confinis Joseph P. Tracy 1905-4-30 2178 Humboldt Ocean Beach Humboldt Bay; North Coast Region Comment
  UC525624  Poa confinis H. E. Parks and Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka; North Coast Ranges 9 Comment
  UC584206  Poa douglasii David D. Keck and J. Clausen 1935-6-16 3382 Humboldt mouth of Little River Comment
  UC180506  Poa howellii Joseph P. Tracy 1913-6-20 4243 Humboldt lower foothills of Buck Mt (nw slope); Northern Coast Ranges 762 Comment
  UCSC000061  Poa howellii H. S. Yates 1936-6-17 5709 Humboldt Lower NW slope of Buck Mtn. - South Fork Pk. 792 Comment
  HSC70247  Poa pratensis M. A. Baker 1980-6-8 1916 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC235981  Poa secunda subsp. secunda A. G. Vestal 1937-6-23 s.n. Humboldt Kneeland Prairie Comment
  CAS-BOT-BC235983  Poa secunda subsp. secunda Doris Kildale Gillespie 1931-6-7 10640 Humboldt South Fork Mountain, Blake Lookout 1726 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
  HSC70687  Poa secunda subsp. secunda Gail Newton 1980-7-13 1572 Humboldt Near Sims Mountain. 1311 Comment
  UC184914  Poa secunda subsp. secunda Joseph P. Tracy 1912-7-31 3952 Humboldt near summit Buck Mt; Northern Coast Ranges 1676 Comment
  UCD91750  Poa secunda subsp. secunda A. H. Murphy 1951-6-25 78 Humboldt About 2 miles W of Snow Camp, ENE of Kneeland. Comment
  HSC10804  Poa trivialis J. P. Tracy 1926-6-12 7590 Humboldt Near Orick, at Davison's Ranch on Prairie Creek. 61 Comment
  UCD52731  Podagrostis humilis A. H. Murphy 1951-6-25 65 Humboldt Snow Camp Meadow, 8 miles e.n.e. Kneeland. 1402 Comment
  CDA3403  Polycarpon tetraphyllum Gordon Leppig 2000-12-6 1522 Humboldt 13th and A Streets, Arcata. Comment
  UCR37859  Polycarpon tetraphyllum K. Berg 1984-5-6 567 Humboldt Stone Lagoon Spit. Comment
  JEPS43005  Polygala californica W. L. Jepson 1932-7-30 16459 Humboldt Bull Creek 121 Comment
  HSC54507  Polygala cornuta Overton, Butler 1979-7-23 9408 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC668188  Polygala cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC249655  Polygonum amphibium var. emersum Joseph P. Tracy 1922-9-3 6115 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  CAS-BOT-BC414301  Polygonum aviculare subsp. neglectum H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  CDA2769  Polygonum capitatum Gordon Leppig, Sylvia Leppig 2000-4-16 1298 Humboldt Corner 17th and J Street, Arcata. Comment
  UC1713699  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1919-9-18 5237 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC672957  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1930-7-17 9015 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1116241  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1947-7-5 17772 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC144100  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1909-7-31 3038 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  BLMAR58  Polygonum paronychia Jennifer Anthony-Wheeler 1994-3-1 58 Humboldt Samoa/manilla dunes, growing throughout the coastal dunes 12 Comment
  CAS-BOT-BC109182  Polygonum paronychia Frank W. Peirson 1941-7-29 13109 Humboldt State Little River Beach Park. Comment
  HSC103385  Polygonum phytolaccifolium K. Auker, R. Battleson 2007-6-15 13 Humboldt Grouse Mtn.; along Forest Service Road 5N04, 1.0 mi. E of FS Road NF1. 1494 Comment
  HSC74386  Polygonum polygaloides subsp. kelloggii M. A. Baker 1980-6-28 2504 Humboldt Near Mad River Buttes 1445 Comment
  UC205474  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1919-9-22 5269 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC672956  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1935-7-28 14316 Humboldt Devil's Hole Trinity Summit (head) 1828 Comment
  CDA2918  Polygonum sachalinense T. C. Fuller 1968-7-3 17447 Humboldt Northeast side of Highway 101 freeway overpass, Fields Landing. 0 Comment
  CAS-BOT-BC421007  Polygonum spergulariiforme H. E. Parks; J. P. Tracy 1930-9-15 0767 Humboldt Bald Hills, Kneeland Comment
  HSC1101  Polypodium californicum Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  HSC1107  Polypodium californicum C. O. Baker 1962-3-22 4 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  HSC1137  Polypodium glycyrrhiza J. W. Johnson 1962-4-2 1421 Humboldt Lanphere lane, near the swamp, Samoa Peninsula, Arcata Comment
  JEPS33247  Polypodium glycyrrhiza Lincoln Constance 1934-5-31 748 Humboldt Bull Creek Region, S. Fork Eel R. Comment
  RSA47154  Polypodium glycyrrhiza Doris K. Kildale 1928-12-29 6766 Humboldt Unspecified Comment
  UC503066  Polypodium glycyrrhiza Joseph P. Tracy 1931-3-26 9294 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  HSC1131  Polypodium scouleri R. E. Hafenfeld 1965-5-9 62 Humboldt 0.25 mi. N Squashan Cr. on Gold Bluff Beach Rd. Comment
  HSC26822  Polypodium scouleri Clifton Raymond Chesbrough 1973-6-19 69 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UCD136910  Polypodium scouleri Linda M. Barker 1976-3-11 1327 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  CAS-BOT-BC72086  Polypodium scouleri Doris K. Kildale 1926-7-22 2412 Humboldt near Canyon Park Comment
  HSC100394  Polypodium vulgare Carl C. Marshall Mar 1886 155 Humboldt Trees etc., on Mad River. Comment
  CAS-BOT-BC233075  Polypogon interruptus Henry M. Pollard 1946-8-10 s.n. Humboldt Roadside, S of Klamath River and E of Perch Creek, Orleans region Comment
  HSC11740  Polypogon monspeliensis Jerry Parker 1968-11-19 241 Humboldt Clam beach in stream bed of Strawberry Creek. Comment
  HSC74744  Polystichum imbricans Gail Newton 1981-8-7 2425 Humboldt Near Bug Creek Butte 1244 Comment
  HSC98734  Polystichum imbricans subsp. imbricans Cara Witte 2007-7-25 583 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1270 Comment
  HSC1153  Polystichum munitum Paul Shields 1955-6-10 Humboldt 3 mi. S of Weott Comment
  HSC40256  Polystichum munitum Linda M. Barker 1976-4-30 1414 Humboldt 3 mi. W of Arcata Comment
  RSA247492  Polystichum munitum Gary D. Wallace 1966-9-12 703 Humboldt Along Hwy. 299 E of Arcata near Willow Creek; Comment
  UC906671  Polystichum munitum Joseph P. Tracy 1947-5-24 17688 Humboldt Big Lagoon 12 Comment
  UCD136543  Polystichum munitum Linda M. Barker 1976-4-30 1414 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  UCSB8319  Polystichum munitum Robbins, G. 1936-8-1 Humboldt Near Carlotta. Comment
  SEINET3874030 Image available Polystichum munitum var. imbricans Thomas Nelson, Jane P. Nelson; James Nelson 1975-6-14 1903 Humboldt Beside branch off Rd. 2S08 to Pine Mountain.; 0 Comment
  UC1196665  Populus trichocarpa Joseph P. Tracy 1928-10-21 8521 Humboldt Van Duzen River near Hydesville; Northern Coast Ranges, Van Duzen Range 30 Comment
  UC213000  Populus trichocarpa Joseph P. Tracy 1919-9-19 5258 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1828 Comment
  UC512087  Populus trichocarpa Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1220 Humboldt in pine barrens near the coast 1 mi n Samoa 0 Comment
  UC60858  Potamogeton natans W. C. Blasdale June, 1896 Humboldt near Graham's Ranch (on Mad River); Mad River Comment
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Sep 17 2012
  UCD113692  Potentilla anserina subsp. pacifica Linda M. Barker 1976-6-1 1556 Humboldt 3 miles west of Arcata. Comment
  UCD113696  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  HSC36106  Potentilla anserina subsp. pacifica Otis Weimer 1973-10-16 731010 .5 Humboldt On Lindsay Creek Marsh 4 mi. N of Hwy. 299 on Fieldbrook Rd. Comment
  JEPS24329  Potentilla anserina subsp. pacifica Lincoln Constance 1934-6-18 903 Humboldt near South Fork R.R. Station and P.O. (border of North Dyerville Flat); South Fork Eel River, Bull Creek Region Comment
  POM275246  Potentilla anserina var. grandis Lyman D. Benson 1928-7-10 437 Humboldt Clam Beach, Trinidad. Sand dunes, along a small stream. 6 Comment
  HSC102125  Potentilla drummondii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1029 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC63880  Potentilla drummondii M. A. Baker 1979-6-27 922 Humboldt Edge of Hoopa Indian Reservation Comment
  HSC101986  Potentilla glandulosa var. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 884 Humboldt Patterson Meadows 1566 Comment
  HSC56414  Potentilla gracilis var. fastigiata Griswold, Butler 1979-7-11 7064 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC57357  Potentilla gracilis var. fastigiata Overton, Butler 1979-7-26 10053 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC54230  Prosartes hookeri Griswold, Butler 1979-7-12 7297 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  SBBG58724  Prosartes smithii R. Hartwell 1938-8-3 101 Humboldt near Garberville Comment
  HSC60293  Prosartes smithii Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  UCSB665  Prosartes smithii Phillips, Priscilla 1958-6-10 Humboldt On old road running between Trinidad and Colonial Inn, 1 mile south of the intersection of old road and 101 Comment
  HSC26841  Prunella vulgaris Thomas W. Nelson 1971-1-8 321 Humboldt Ferndale next to Co. Fair Grounds Comment
  HSC99544  Prunella vulgaris var. lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 209 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC153994  Prunella vulgaris var. lanceolata Joseph P. Tracy 1908-6 2776 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC577375  Prunella vulgaris var. lanceolata Joseph P. Tracy 1932-7-13 10524 Humboldt Corral Prairie Trinity Summit; , Corral Prairie 1584 Comment
  UC1196732  Prunella vulgaris var. lanceolata Joseph P. Tracy 1934-7-22 13487 Humboldt at crossing of Iaqua-Bridgeville road North Yager Creek 396 Comment
  UCLA85882  Prunella vulgaris var. lanceolata O. H. Kappler 1946-7-24 1371 Humboldt s of Humboldt Bay Loleta; s of Humboldt Bay Comment
  CAS-BOT-BC159985  Prunus emarginata L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  UC582514  Pseudognaphalium ramosissimum Joseph P. Tracy 1928-9-9 8506 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  CAS-BOT-BC80114  Pseudotsuga menziesii Doris K. Kildale 1927-5-7 3114 Humboldt Elk Ridge Comment
  SBBG360  Pseudotsuga menziesii var. menziesii M. J. Cody 1938-7-10 Humboldt near Trinidad Comment
  UC1223167  Psilocarphus tenellus Joseph P. Tracy 1950-5-30 18713 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC46092  Pteridium aquilinum var. pubescens J. P. Smith, Steve Selva 1970-6-14 3855 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC55135  Pteridium aquilinum var. pubescens G. L. Clifton, Griswold 1979-8-1 11978 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  RSA475262  Pteridium aquilinum var. pubescens Lyman Benson 1928-7-9 408 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  UC577346  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC32692  Pyrola asarifolia Joseph P. Tracy 1898-7-1 248 Humboldt Kneeland Prairie 1066 Comment
  SJSU909  Pyrola asarifolia J. W. Tilden 1946-6-21 1013 Humboldt Bluff Cr c. 1.5 mi above Klamath R Comment
  HSC49999  Pyrola dentata M. A. Baker 1979-6-7 792 Humboldt 1250 Comment
  UC562451  Pyrola picta Joseph P. Tracy Jul 16 1930-Jul 19 1930 9033 Humboldt near McKay Camp (Northern Coast Ranges, South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC466036  Pyrola picta Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  SEINET200715  Pyrola picta Joseeph P. Tracy 1926-6-6 7556 Humboldt Near summit on road west from Hoopa to Bair's Comment
  UC1197584  Pyrola picta Joseph P. Tracy 1949-7-19 18377 Humboldt Grouse Mountain, at Friday Camp Grouse Mountain; , Friday Camp 1219 Comment
  SEINET200713  Pyrola rotundifolia J. P Tracy 1901-6-30 1191 Humboldt Immediate vicinity of Eureka, 0 Comment
  CAS-BOT-BC62671  Quercus chrysolepis Doris K. Kildale 1926-9-5 2646 Humboldt Signal Peak - Lassiks Peaks 1791 Comment
  HSC41342  Quercus chrysolepis Brad Klipfel 1974-8-2 504 Humboldt Horse Mtn. Comment
  UC1196530  Quercus chrysolepis Joseph P. Tracy 1935-7-14 14066 Humboldt ridge back of Clear Lake; North Coast Ranges, Grouse Mountain 1524 Comment
  UC5532  Quercus chrysolepis unknown 1867-6-17 Humboldt Elk Ridge Comment
  CAS-BOT-BC94312  Quercus garryana Doris K. Kildale 1926-8-31 2603 Humboldt Union Mattola, Geo. Miner Ranch Comment
  CAS-BOT-BC62727  Quercus garryana var. breweri Doris K. Kildale 1926-9-5 2631 Humboldt Head of Red Lassecks huk. Lasseck's Peaks 1676 Comment
  HSC102091  Quercus garryana var. breweri M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 994 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  OBI36116  Quercus garryana var. garryana David J. Keil 1983-7-1 17265 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  RSA622135  Quercus garryana var. garryana J. M. Tucker 1948-9-3 1849 Humboldt Southwest side of Horse Mountain, ca. 2 mi. south of Berry's Summit. 1067 Comment
  HSC41013  Quercus kelloggii J. P. Smith, J. O. Sawyer 1976-5-2 8635 Humboldt 3.2 mi W of Loop Rd. in Hoopa Reservation, along Redwood Creek-Hoopa Rd. 366 Comment
  HSC8258  Quercus kelloggii R. E. Thill 1965-5-15 30 Humboldt 3 mi W of Berry Summit on Hwy. 299 Comment
  UCD46652  Quercus kelloggii R. N. Raynor 1935-4-15 s.n. Humboldt Fort Seward. Comment
  CAS-BOT-BC104334  Quercus sadleriana Doris K. Kildale 1925-8-17 1378 Humboldt Trinity Summit 1917 Comment
  HSC72811  Quercus vacciniifolia Gail Newton 1980-7-22 1686 Humboldt Near Devils Backbone 1554 Comment
  HSC76363  Quercus vacciniifolia Denis Kearns 1981-6-24 18 Humboldt Near Cedar Camp 1219 Comment
  UC1135804  Quercus vacciniifolia A. E. Wieslander 1931-5-19 204 Humboldt near Orleans; Klamath Forest, Hoopa Quad. Comment
  UCR165264  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest) on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine 1463 Comment
  HSC28201  Ranunculus hebecarpus Thomas W. Nelson 1971-5-7 429 Humboldt Beside Hwy. 101 1.0 mi. S of Arcata Comment
  UC1196212  Ranunculus occidentalis J. P. Tracy 1901-5-5 1066 Humboldt Immediate vicinity of Eureka 0 Comment
  UC162863  Ranunculus occidentalis Joseph P. Tracy 1908-6 2689 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC502921  Ranunculus occidentalis Joseph P. Tracy 1932-7-18 10701 Humboldt Brett Hole Klamath Mountains, Trinity Summit (head) 1828 Comment
  UCD96942  Ranunculus occidentalis R. N. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  UC1196254  Ranunculus orthorhynchus var. orthorhynchus J. P. Tracy 1901-5-12 1075 Humboldt Immediate vicinity of Eureka 0 Comment
  UC668062  Ranunculus repens Joseph P. Tracy 1938-5-8 15740 Humboldt 4 mi e Carlotta 30 Comment
  POM145526  Ranunculus sardous J. B. Feudge 1923-7-22 140 Humboldt At Fortuna. 15 Comment
  UC1197985  Rhamnus californica Joseph P. Tracy 1927-7-24 8297 Humboldt Upper Mattole Northern Coast Ranges, South Fork Eel River 152 Comment
  UC1197994  Rhamnus californica Joseph P. Tracy 1934-7-9 13357 Humboldt Dobbyn Creek 152 Comment
  UC203996  Rhamnus californica subsp. californica Joseph P. Tracy 1918-7-5 5011 Humboldt White Thorn Valley Northern Coast anges 304 Comment
  RSA2937  Rhamnus californica subsp. occidentalis Carl B. Wolf 1931-8-30 2377 Humboldt On grade from Willow Creek to Blue Rahe, 9 miles above Willow Creek (Lord Ellis Road). 305 Comment
  POM257951  Rhamnus purshiana H. E. Parks, S. T. Parks 1937-06 24018 Humboldt Spruce Cove, Trinidad. Comment
  RSA13285  Rhamnus purshiana Doris K. Kildale 1929-5-25 8394 Humboldt Pines Pasture, Eureka. 61 Comment
  RSA390632  Rhamnus purshiana Christopher Davidson 1973-5-29 2203 Humboldt 2 miles S of Carlotta on Hwy 36 61 Comment
  UC630477  Rhamnus purshiana H. E. and S. T. Parks 1935-5-1 5541 Humboldt Spruce Cove Trinidad 64 Comment
  HSC7832  Rhododendron columbianum D. E. Anderson 1961-9-13 1804 Humboldt Big Lagoon County Park Comment
  CAS-BOT-BC56611  Rhododendron macrophyllum Doris Kildale 1931-5-16 10694 Humboldt Camp 20, LBSJ Trinidad Comment
  RSA2944  Rhododendron macrophyllum C. B. Wolf 1931-8-29 2370 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  UC1197789  Rhododendron occidentale J. P. Tracy 1901-6-23 1165 Humboldt immediate vicinity of Eurek 0 Comment
  UC1733675  Rhododendron occidentale Frank Gould, Kay H. Beach 1940-5-5 1041 Humboldt along north coast, north of Eureka. Comment
  UCSB18968  Rhododendron occidentale Jensen, Karen 1965-4-14 Humboldt Along U.S. Highway 101, 1 km. S of Trinidad 45 Comment
  HSC7893  Rhododendron occidentale var. paludosum D. E. Anderson 1961-9-30 1845 Humboldt Divide Lake Comment
  RSA167293  Ribes binominatum Joseph P. Tracy 1950-7-1 18949 Humboldt Grouse Mountain; at Cold Springs . 1433 Comment
  CAS-BOT-BC108908  Ribes divaricatum var. pubiflorum Doris K. Kildale 1926-3-14 1532 Humboldt Blue Slide - on Van Duzen River. Comment
  UC154121  Ribes divaricatum var. pubiflorum J. P. Tracy 1901-4-14 1027 Humboldt opp. Eureka (ocean beach at Samoa); Samoa Comment
  UC56313  Ribes laxiflorum J. P. Tracy 1897-4-8 Humboldt Eureka Comment
  HSC20302  Ribes laxiflorum J. W. Johnson 1962-3-22 1436 Humboldt Samoa Peninsula, Miller Farm. Comment
  CAS-BOT-BC173363  Ribes lobbii L. R. Abrams 1918-6-14 7091 Humboldt Three Creeks Comment
  HSC41309  Ribes lobbii Brad Klipfel 1974-6-25 410 Humboldt Horse Mtn. Comment
  HSC74138  Ribes lobbii M. A. Baker 1980-7-23 3175 Humboldt Near Orleans Mtn. 1859 Comment
  UC1198925  Ribes lobbii Joseph P. Tracy 1936-8-8 15139 Humboldt ne Hawkins Bar.; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC20315  Ribes menziesii D. E. Anderson 1962-3-17 1940 Humboldt 1.0 mi. SE of Korbel along rd. to Maple Creek Comment
  UC1198931  Ribes menziesii J. P. Tracy 1905-3-26 2153 Humboldt immediate vicinity Eureka 0 Comment
  UC902103  Ribes menziesii Joseph P. Tracy 1948-2-22 17950 Humboldt Hydesville 91 Comment
  HSC20326  Ribes roezlii Doris K. Kildale 1926-6-27 2232 Humboldt Little Van Duzen River, at bridge on Bridgeville-Red Bluff Rd. Comment
  UC1127532  Ribes roezlii H. S. Yates 1936-6-24 5880 Humboldt 2 mi e Bear Butte; Briceland Quadrangle Comment
  UC492204  Ribes roezlii Joseph P. Tracy 1930-8-3 9144 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen River 670 Comment
  RSA0024752  Ribes roezlii Joseph P. Tracy 1950-8-4 19255 Humboldt Grasshopper Peak in Bull Creek State Park at head of Canoe Creek. Comment
  CAS-BOT-BC198870  Ribes roezlii var. amictum Joseph P. Tracy 1923-3-17 6159 Humboldt Garberville 121 Comment
  HSC20329  Ribes roezlii var. cruentum R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1360 Humboldt 1.0 mi. E of Redwood Creek along Hwy. 299 Comment
  UC902081  Ribes roezlii var. cruentum Joseph P. Tracy 1949-7-19 18378 Humboldt Grouse Mountain 1280 Comment
  HSC39630  Ribes sanguineum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2736 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  HSC71583  Ribes sanguineum Gail Newton 1980-6-16 188 Humboldt Near Onion Mtn. 1280 Comment
  UC1198915 Image available Ribes sanguineum Joseph P. Tracy 1933-8-30 13059 Humboldt near Rnager's Lookout; Grouse Mountain 1615 Comment
  CAS-BOT-BC144686  Ribes sanguineum var. glutinosum Lincoln Constance; Reed Rollins 1942-5-11 2866 Humboldt Near summit 8 miles east of Blue Lake Comment
  CAS-BOT-BC144695  Ribes sanguineum var. glutinosum H. E. McMinn 1922-8-4 340 Humboldt along Van Dusen River Comment
  HSC103221  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-5-2 14 Humboldt Off 299 between Big Bar and Burnt Ranch. Up Forest Route 4 approx. 8 miles. At the turnoff towards Ironside Mountain. 1057 Comment
  HSC65645  Ribes viscosissimum J. P. Smith, J. O. Sawyer 1975-6-2 8208 Humboldt Six Rivers National Forest, W of Goat Hill Comment
  UC775204  Romanzoffia tracyi J. P. Tracy and H. E. Parks 1933-5-9 11008 Humboldt Vicinity of Trinidad; bluff near ocean; vicinity of Trinidad, Humboldt Co. 15 Comment
  JEPS53849  Rorippa curvisiliqua Joseph P. Tracy 1916-5-31 4693 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  UC161485  Rorippa curvisiliqua J. P. Tracy 1906-7-1 2519 Humboldt vicinity Eureka; vicinity Eureka 0 Comment
  CAS-BOT-BC146476  Rosa gymnocarpa Alice Eastwood; John Thomas Howell 1937-6-23 4798 Humboldt Near Dinsmores Comment
  HSC45635  Rosa gymnocarpa Diane L. Reed 1978-4-22 32 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC667030  Rosa gymnocarpa Joseph P. Tracy 1936-8-7 15107 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  SBBG3082  Rosa nutkana H. and M. Dearing 1939-5-26 3448 Humboldt Bishop Pine Lodge, N of Trinidad Comment
  CAS-BOT-BC148345  Rosa pisocarpa Joseph P. Tracy 1933-7-25 12898 Humboldt Grouse mt. 1524 Comment
  CAS-BOT-BC146885  Rosa rubiginosa Carl B. Wolf 1927-8-30 1229 Humboldt 2 mi. s. of Petrolia on Matole River near point where road crosses river Comment
  RSA21585  Rosa spithamea Carl B. Wolf 1937-8-13 9230 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC147155  Rubus laciniatus Henry M. Pollard 1948-8-7 s.n. Humboldt Near Orleans Comment
  UC492171  Rubus laciniatus Joseph P. Tracy 1927-10-8 8385 Humboldt Boyes' Prairie Northern Coast Ranges, Prairie Creek 60 Comment
  CAS-BOT-BC147248  Rubus parviflorus Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  HSC19661  Rubus parviflorus D. A. Shally 1965-5-15 53 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC22039  Rubus spectabilis B. D. Rogers, D. E. Anderson 1965-4-1 412 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  HSC60111  Rubus spectabilis M. A. Baker 1977-5-1 278 Humboldt E of Humboldt State University. Comment
  JEPS44771  Rubus spectabilis Joseph P. Tracy 1923-4-15 6192 Humboldt at Berry's Northern Coast Ranges, Redwood Creek (Redwood Creek) 274 Comment
  RSA74607  Rubus spectabilis E. K. Balls, Lee W. Lenz 1956-6-12 1667 Humboldt Between Willow Creek and Blue Lake. Comment
  CAS-BOT-BC156728  Rubus spectabilis Duart V. Brown 1947-3-27 18 Humboldt Tectah Creek, Klamath River Comment
  RSA0009570  Rubus spectabilis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1301224  Rubus spectabilis Paul C. Hutchison 1966-5-26 2741 Humboldt near U.S. highway 101 (Prairie Creek Redwood Grove State Park); Prairie Creek Redwood Grove State Park 50 Comment
  HSC39999  Rubus ursinus J. O. Sawyer 1970-6-27 2306 Humboldt Site 318. 1494 Comment
  HSC70315  Rubus ursinus M. A. Baker 1980-5-18 1342 Humboldt Near Black Mtn. 792 Comment
  UC1199050  Rubus ursinus Joseph P. Tracy 1939-4-16 16210 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  UCD17614  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 051 Humboldt California. Humboldt County: 23.1 miles from Ettersburg on road to Dyerville. Comment
  UCD17928  Rubus ursinus H. Olmo; T. S. Mallah 1953-4-3 53 60 Humboldt California. Humboldt County: 0.5 miles south of cemetary alongside highway in Rohnerville. East of airport. Comment
  HSC76208  Rudbeckia klamathensis Overton, Butler 1979-8-2 12527 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1199269  Rudbeckia occidentalis Joseph P. Tracy 1932-7-20 10727 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC421936  Rumex acetosella Doris K. Kildale 1925-8-17 1239 Humboldt Trinity Summit - near Waterdog Lake. 1828 Comment
  HSC100603  Rumex acetosella Carl C. Marshall May 1886 163 Humboldt Everywhere. Comment
  RSA226607  Rumex acetosella Norman Dennis 1965-6-19 134 Humboldt 1/4 mile S and 1 mile E of the jct of Barry Ridge Road and the Eureka-Bridgeville country road, along Ashfield Ridge Road, 5 miles SE of Kneeland. 793 Comment
  HSC39980  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt 3 mi. W of Arcata Comment
  HSC17592  Rumex crispus R. J. Vernimen 1963-3-25 18 Humboldt Along railroad tracks at Clam Beach lagoons Comment
  UCD92330  Rytidosperma R. Tofsrud 1946-11-1 33 Humboldt Humboldt County. Comment
  UC275481  Sagina apetala Joseph P. Tracy 1925-5-30 7015 Humboldt at Kemp's Maple Grove Ranch Bridgeville; Northern Coast Ranges, , Kemp's Maple Grove Ranch 228 Comment
  POM318824  Salicornia Patricia Wilder 1968-8-21 4416 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  SEINET10965499  Salicornia Mary Susan Taylor 1990-8-22 Taylor 6087 Humboldt Cypress Grove Area, Samoa Peninsula, along strand, Eureka. Comment
  OBI36622  Salicornia pacifica David J. Keil 1983-7-2 17297 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  HSC94188  Salix alba Gordon Leppig, Sylvia Leppig, Kai Leppig 2000-4-16 1297 Humboldt Arcata Marsh and Wildlife Sanctuary, W bank of Hauser Marsh 1 Comment
  CDA39544  Salix alba Gordon, Sylvia and Kai Leppig 2000-4-16 1297 Humboldt Arcata; Arcata March and Wildlife Sanctuary, west bank of Hauser Marsh. Comment
  POM182024  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt McKay Meadow. Tinity summit. Klamath Mountains. 1524 Comment
  CAS-BOT-BC6088  Salix exigua Harold Ernest Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  JEPS14753  Salix exigua Joseph P. Tracy 1932-6-14 10151 Humboldt at Willow Creek Trinity River Valley; Northern Coast Region 152 Comment
  JEPS14785  Salix exigua Joseph P. Tracy 1933-5-19 12203 Humboldt Alton to Fortuna (Eel River); Northern Coast Region, Eel River 15 Comment
  UC469444  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-7 9640 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC100648  Salix flavescens Carl C. Marshall Mar 1887 390 Humboldt Humboldt Hill. Comment
  CAS-BOT-BC106858  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01207 Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad Comment
  CAS-BOT-BC107708  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Fortuna, on banks of Eel River 10 Comment
  CAS-BOT-BC107737  Salix hookeriana Jim Davis 1933-4-25 4 Humboldt Around Eureka Comment
  CAS-BOT-BC107749  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107750  Salix hookeriana Harold E. Parks 1931-5-12 955 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107769  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1222 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  HSC96617  Salix hookeriana Gordon Leppig 2005-4-8 2203 Humboldt N spit, S end of Peninsula Dr. 3 Comment
  JEPS12908  Salix hookeriana Joseph P. Tracy 1927-3-13 7844 Humboldt mouth of Little River; Northern Coast Ranges 6 Comment
  POM219354  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Near Samoa. On Humboldt Bay. 6 Comment
  POM219558  Salix hookeriana H. E. Parks 1931-3-24 912 Humboldt Fortuna. Eel River. 10 Comment
  RSA183589  Salix hookeriana R. D. Zortman 1963-3-9 11 Humboldt 5 miles NE of Arcata. S of the Mad River, off Warren Creek Rd. 91 Comment
  UC1173619  Salix hookeriana Joseph P. Tracy 1936-2-23 14773 Humboldt Fortuna Eel River (bank of river) 15 Comment
  UC1196675  Salix hookeriana Joseph P. Tracy 1931-3-26 9305 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC275495  Salix hookeriana Joseph P. Tracy 1925-11-1 7303 Humboldt Shiveley Northern Coast Ranges, Shiveley 60 Comment
  UC469115  Salix hookeriana Joseph P. Tracy 1931-8-23 9622 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC469126  Salix hookeriana Joseph P. Tracy 1931-8-23 9617 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC469127  Salix hookeriana Joseph P. Tracy 1931-4-4 9329 Humboldt sand dunes near Samoa; Northern Coast Region, on Humboldt Bay 6 Comment
  UC469129  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470425  Salix hookeriana Joseph P. Tracy 1931-10-3 9710 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC495608  Salix hookeriana Joseph P. Tracy 1932-3-13 9777 Humboldt S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R. 121 Comment
  UC512086  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1221 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC512089  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1218 Humboldt 1 mi n Samoa (pine barrens near coast) Comment
  UC512090  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1217 Humboldt 1 mi s Samoa (pine barrens near coast) Comment
  UC512111  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1204 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC518897  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 5 Humboldt around Eureka Comment
  UC518899  Salix hookeriana Jim Davis 1933-4-25 4 Humboldt around Eureka Comment
  UCD111041  Salix hookeriana Linda M. Barker 1976-4-30 1422 Humboldt 3 miles west of Arcata. Comment
  UC481801  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 267 Humboldt between Miranda and Meyers (Sylvandale Station, S. Fork Eel R.); Sylvandale Station, S. Fork Eel R. Comment
  UC481815  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 270 Humboldt between Miranda and Meyers (S. Fork Eel R., Sylvandale Station); S. Fork Eel R., Sylvandale Comment
  UC519388  Salix laevigata Joseph P. Tracy 1933-6-9 12529 Humboldt Shively Northern Coast Ranges, Shively 30 Comment
  HSC19987  Salix lasiandra H. E. Parks 1931-5-14 959 Humboldt Lower Van Duzen River 0 Comment
  HSC19989  Salix lasiandra H. E. Parks, S. T. Parks 1932-4-5 1101 Humboldt Little River Lagoon Comment
  UC1196579  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1939-5-6 16280 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity R. Valley 152 Comment
  CAS-BOT-BC128196  Salix lasiandra var. lasiandra Doris K. Kildale 1926-3-7 1528 Humboldt Stephen's Grove, river bar - South Fork of Eel River 60 Comment
  HSC96616  Salix lasiandra var. lasiandra Gordon Leppig 2005-4-8 2205 Humboldt N Spit Swamp, W side of highway 3 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
  CAS-BOT-BC107102  Salix lasiolepis Joseph P. Tracy 1933-2-26 10912 Humboldt Miranda, along south fork of Eel River 121 Comment
  CAS-BOT-BC107643  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt On open grassy slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  CHSC96719  Salix lasiolepis Gordon Leppig 1999-4-15 1117 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC19990  Salix lasiolepis R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1358 Humboldt 1.5 mi. E of Blue Lake on Hwy. 299 Comment
  HSC20002  Salix lasiolepis J. P. Tracy 1933-3-19 10931 Humboldt Blue Slide, Van Duzen River 91 Comment
  HSC98056  Salix lasiolepis Cara Witte 2007-7-2 395 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  JEPS12943  Salix lasiolepis Joseph P. Tracy 1930-6-15 8737 Humboldt near Bosworth's Larrabee Creek; Northern Coast Ranges 457 Comment
  JEPS14774  Salix lasiolepis Joseph P. Tracy 1933-4-9 10966 Humboldt along Van Duzen River Bridgeville; Northern Coast Ranges 228 Comment
  SBBG57890  Salix lasiolepis C. R. Ball, H. E. Parks, J. P. Tracey 1932-5-17 1324 Humboldt W slope of Berry's Mtn, E of Redwood Crk 762 Comment
  UC471108  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC504024  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1255 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  UC506506  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC506507  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC506509  Salix lasiolepis Joseph P. Tracy 1932-6-4 10130 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC709424  Salix lasiolepis Joseph P. Tracy 1941-3-9 16802 Humboldt Camp Grant Eel River (on gravel bar of river) 48 Comment
  UC279091  Salix lemmonii J. P. Tracy Humboldt Comment
  CAS-BOT-BC125538  Salix lutea Arnold Tiehm; Brant Rogers 1978-4-27 4046 Humboldt West entrance to Thousand Creek Gorge, 1.2 road miles northeast of Virgin Valley Campground 1463 Comment
  SBBG57930  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 972 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  SJSU181  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen R between Alton & Carlotta 15 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
  UC14800  Salix melanopsis Hy-An Pum 1888-7-21 Humboldt Comment
  UC481265  Salix melanopsis Harold E. Parks 1931-5-28 1019 Humboldt Little River Lagoon Comment
  UC726592  Salix melanopsis A. A. Heller 1923-7-10 13796 Humboldt between Scotia and Pepperwood (Eel R.); Eel R. Comment
  CAS-BOT-BC129247  Salix piperi Joseph P. Tracy 1934-9-22 13676 Humboldt Mouth of Mad River 9 Comment
  CAS-BOT-BC129139  Salix scouleriana Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC20075  Salix scouleriana J. P. Tracy 1932-7-17 10694 Humboldt Klamath Mtns., Trinity summit, Head of Devil's Hole 1829 Comment
  JEPS14777  Salix scouleriana Joseph P. Tracy 1933-4-2 10956 Humboldt Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 304 Comment
  LA208917  Salix scouleriana Harold E. Parks; 1931-5-12 951 Humboldt Bishop Pine Lodge; Trinidad 150.0 Comment
  SD884  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humbolt Bay Comment
  UC1196695  Salix scouleriana Joseph P. Tracy 1924-11-16 6921 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC1196702  Salix scouleriana Joseph P. Tracy 1926-10-12 7812 Humboldt near mouth of S. Fork Trinity R. MirandaFour Mile creek; Northern Coast Ranges, Four Mile Creek 609 Comment
  UC302153  Salix scouleriana Joseph P. Tracy 1926-7-25 7752 Humboldt Big Lagoon North Coast Region, Big Lagoon 6 Comment
  UC470445  Salix scouleriana Joseph P. Tracy 1929-10-20 8680 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC506348  Salix scouleriana Joseph P. Tracy 1933-3-12 10921 Humboldt Ferndale Northern Coast Ranges, Ferndale 30 Comment
  UC506513  Salix scouleriana B. S. and C. S. Ball 1932-9-12 2532 Humboldt 2 mi. n. Trinidad (home of Mr. and Mrs. Harold E. Parks) Comment
  UC519353  Salix scouleriana Joseph P. Tracy 1933-8-30 13056 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  CAS-BOT-BC128986  Salix sitchensis Harold E. Parks 1931-3-25 903 Humboldt Orick, on Van Duzen River 6 Comment
  CAS-BOT-BC128995  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt South Fork Mountain: in wet meadow at McKay Camp 1676 Comment
  HSC96598  Salix sitchensis Gordon Leppig 2003-2-20 1811 Humboldt Eureka, W end of W Hawthorne St. 3 Comment
  UC1225919  Salix sitchensis Joseph P. Tracy 1942-7-26 17295 Humboldt near the Redwood House S. Yager Creek 609 Comment
  UC518896  Salix sitchensis Jim Davis Apr 25 1933-Apr 27 1933 6 Humboldt around Eureka Eureka Comment
  UC490585  Salix tracyi Joseph P. Tracy 1932-4-24 9803 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  UC275297  Salsola tragus Joseph P. Tracy 1924-8-31 6838 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges 91 Comment
  RSA1255  Sambucus callicarpa B. D. Stark 1929-7-24 1388 Humboldt 2 miles north of Arcata 30 Comment
  JEPS86685  Sambucus mexicana L. R. Heckard with T. I. Chuang 1990-7-15 6768 Humboldt South Fork Mountain Rd. ca 11 mi n Hwy 36 (near Mad River jct.) 1740 Comment
  HSC22838  Sambucus racemosa var. racemosa C. D. Hunter 1964-4-12 Humboldt 3 mi. S of Big Lagoon along Hwy. 101 Comment
  HSC75561  Sambucus racemosa var. racemosa N. D. Dennis 1965-4-2 3 Humboldt Corner of Del Norte and L St., Eureka. Comment
  UCSB25080  Sambucus racemosa var. racemosa Keefe, Joseph 1967-7-8 Humboldt Juntion Crannell Road and Little River Drive, north of Eureka 6 Comment
  HSC13297  Sanguisorba minor D. Santana 1970-5-16 Humboldt 2 mi. N of Fortuna off ramp along Hwy. 101 Comment
  UC154106  Sanicula arctopoides J. P. Tracy 1904-4-24 2021 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  HSC81923  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1979-7-3 4963 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek roads. 610 Comment
  HSC79372  Sanicula crassicaulis Kenneth Clark 1980-3-27 553 Humboldt Above South Fork Dead Man's Gulch 168 Comment
  HSC48752  Sanicula graveolens Brad Klipfel 1973-6-16 78 Humboldt Along ridge trail SE of N Trinity Mountain 1829 Comment
  JEPS973  Sanicula tuberosa Joseph P. Tracy 1927-6-12 8156 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1219 Comment
  UCR39791  Sanicula tuberosa D. K. Imper 1982-7-13 s.n. Humboldt Six Rivers Nat. Forest, l mi. 6' north of Chaparral Mtn. 1375 Comment
  HSC101030  Sanicula tuberosa John McRae 1994-7-1 36 Humboldt Route 1 to FS Rd. 3N14. Approx. .25 mi. to end of PC-1. 1220 Comment
  RSA43855  Saponaria officinalis H. M. Pollard 1948-7-26 s.n. Humboldt Banks of Klamath River near Orleans. Comment
  HSC102071  Saxifraga aprica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 973 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC183566  Saxifraga californica Joseph P. Tracy 1913-5-4 4063 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1198883  Saxifraga marshallii Joseph P. Tracy 1935-5-12 13800 Humboldt at East Fork Willow Creek, Willow Creek Canyon, along Trinity Highway Willow Creek; Willow Creek Canyon, East Fork Willow Creek 457 Comment
  CAS-BOT-BC441185  Saxifraga mertensiana Duart V. Brown 1947-3-25 7 Humboldt Bull Creek near Highway on Hoopa Valley Indian Reservation Comment
  UCD13239  Saxifraga mertensiana Collector unknown 1976-4-10 106 Humboldt California: Humboldt Co. Junction of stae Highway 36 with Alderpoint Rd. Elev. 1800 ft. 548 Comment
  UC183569  Saxifraga nidifica var. nidifica Joseph P. Tracy 1913-6-17 4178 Humboldt near summit of Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  POM87944  Schoenoplectus acutus var. occidentalis Le Roy Abrams, Rimo C. Bacigalupi 8272 Humboldt Big Lagoon, south of Orick. Comment
  HSC7495  Scirpus congdonii J. P. Tracy 1937-8-12 15638 Humboldt Snow Camp 1402 Comment
  UC1541345  Scirpus maritimus Harold E. Parks September 1934 5201 Humboldt Big Lagoon Comment
  SBBG88776  Scirpus microcarpus A. Keedy 1988-9-28 14 Humboldt Alder Grove Rd near Hwy 299, N of Arcata Comment
  RSA167281  Scirpus microcarpus Joseph P. Tracy 1949-9-1 18533 Humboldt Trinity River Valley, at Willow Creek: Dusky s Spring 152 Comment
  HSC23036  Scleranthus annuus D. E. Anderson 1964-1 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  CAS-BOT-BC517412  Scoliopus bigelovii Leo Shapovalov; C. Woodhull 1940-3-6 s.n. Humboldt Redwood Creek near Garberville in Humboldt Redwood State Park Comment
  HSC15631  Scoliopus bigelovii R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1361 Humboldt 3 mi. E of Redwood Creek on old Hwy. 299 Comment
  JEPS6741  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi s Arcata (Fickle Hill) 609 Comment
  UCR122374  Scrophularia californica subsp. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 7011 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  UC1239696  Scutellaria antirrhinoides Joseph P. Tracy 1933-7-9 12654 Humboldt Brannan Mountain; Northern Coast Ranges, Brannan Mountain 1066 Comment
  UC25790  Scutellaria antirrhinoides Chesnut and Drew July 1888 Humboldt Campbells Comment
  JEPS62896  Scutellaria californica Joseph P. Tracy 1937-7-19 15453 Humboldt Buck Mountain 914 Comment
  JEPS62902  Scutellaria siphocampyloides Joseph P. Tracy 1932-5-17 10083 Humboldt Trinity River Valley, Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC1239711  Scutellaria tuberosa Joseph P. Tracy 1939-5-14 16296 Humboldt along Van Duzen River (Dinsmore's); , Dinsmore's 746 Comment
  HSC65852  Sedum laxum subsp. flavidum Gail Newton 1980-6-28 673 Humboldt Near Mad River Butte. 1536 Comment
  HSC79271  Sedum laxum subsp. flavidum D. K. Imper 1984-5-17 Humboldt Hogback Ridge W of FS6N06, 1.0 mi. N of junction with 5N01 1341 Comment
  JEPS25709  Sedum laxum subsp. heckneri P. C. Hutchison 1961-5-21 2013 Humboldt 4.3 mi s Berry Summit (Mammoth Point Parking area, Horse Mountain, ski area side road); Horse Mountain, Mammoth Point Parking area, s of Berry Summi Comment
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Aug 17 2011
  HSC58050  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-8-1 11911 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC59359  Sedum obtusatum subsp. retusum M. A. Baker 1979-6-28 945 Humboldt 1500 Comment
  HSC73871  Sedum radiatum Gail Newton 1980-7-14 1461 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC97996  Sedum radiatum Cara Witte 2007-7-8 440 Humboldt Board Camp Mountain. Trail 4E28. 1498 Comment
  UC205179  Sedum radiatum Charlotte M. Wilder 1912-10-1 Humboldt Upper Van Duzen River, along trail Upper Van Duzen River 914 Comment
  HSC70962  Sedum spathulifolium var. spathulifolium Thomas W. Nelson 1977-6-15 3456 Humboldt Along Titlow Hill Rd., 3/4 mi. S of junction with Hwy. 299 Comment
  JEPS307  Selaginella oregana Joseph P. Tracy 1928-8-29 8426 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  SEINET200600  Selaginella oregana J. P. Tracy 1928-4-29 8426 Humboldt Prairie Creek 153 Comment
  UC1713630  Selaginella oregana Don Branscomb 1957-12-26 Humboldt Lookout rock Patrick's Point Comment
  HSC98904  Selaginella wallacei Cara Witte 2008-6-7 686 Humboldt Horse Mountain Botanical Area. 1/4 mile west of intersection between National Forest 1 and Forest Service Roads 6N36, 6N38. 1426 Comment
  CDA19897  Senecio cineraria P. Haggard 2002-7-1 PDR P 070939 Humboldt Northern California; on Hwy 36 near Carlotta. 0 Comment
  UC449997  Senecio glomeratus Joseph P. Tracy 5117 Humboldt Eureka Comment
  HSC81584  Senecio integerrimus var. major Thomas W. Nelson, Jane P. Nelson 1980-5-25 5262 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  UC1199245  Senecio integerrimus var. major Joseph P. Tracy 1933-6-13 12585 Humboldt near summit Hoopa Mountain (on road w from Hoopa to Bair's); Northern Coast Ranges 1219 Comment
  UC205168  Senecio minimus Joseph P. Tracy 1919-8-31 5185 Humboldt Eureka 0 Comment
  UC1118081  Senecio minimus H. L. Person 1932-7-23 Humboldt Korbel Eureka Quad., Korbel Comment
  UC917220  Senecio minimus J. M. Tucker 1948-9-4 1863 Humboldt Becks Ranch, Hydesville Comment
  UCD135620  Senecio minimus Gilfillan 1921-8-16 s.n. Humboldt Eureka. Comment
  UC1223153  Senecio sylvaticus Joseph P. Tracy 1941-8-17 16992 Humboldt near High Prairie (Bald Mountain); Bald Mountain Comment
  SEINET11802649  Senecio sylvaticus J. P. Tracy 1949-1 18467 Humboldt S of crossing of powerline,E of headwaters of Redwood Creek, Kinsey Ridge, S from Grouse Mt., 2-6 mi 1280 Comment
  HSC102598  Senecio triangularis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1585 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC100715  Senecio triangularis Carl C. Marshall Jul 1886 330 Humboldt Trinity Mtns. E of Hoopa. Comment
  HSC68086  Senecio triangularis J. P. Smith, Steve Selva 1970-6-30 4114 Humboldt Comment
  CAS-BOT-BC85835  Sequoia sempervirens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 960 Humboldt unspecified Comment
  HSC12953  Sequoia sempervirens Steve Dorei 1970-10-8 10 Humboldt HSU campus, near corner of Union St. and st. leading to gyms Comment
  SEINET3876307 Image available Sequoia sempervirens Bryan Dutton, Emma Dutton 1986-8-13 4513 Humboldt At the Viewcrest Campground on Patrick's Point Drive, ca 1.2 miles from the junction with California 101, north of Trinidad.; 0 Comment
  UC544763 Image available Sequoia sempervirens E. Fritz Apr 1934 8012 Humboldt Richardson Grove Comment
  UC672888  Sequoia sempervirens Joseph P. Tracy 1940-10-17 16770 Humboldt Dyerville 48 Comment
  UCR142864  Sequoia sempervirens C. B. Wolf 1944-10-25 11469 Humboldt North Coast, Eel River Valley, Redwood Hwy, 2.4 mi south of Scotia 61 Comment
  SEINET3876370 Image available Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-1-16 s.n. Humboldt Along State Route 299 from Arcata to Redding, Demonstration Forest, Simpson Timber Company.; 0 Comment
  JEPS50069  Sidalcea diploscypha W. L. Jepson 1934-5-7 16701 Humboldt Buckeye Prairie Bull Creek, Buckeye Prairie Comment
  UC1197964  Sidalcea malachroides Joseph P. Tracy 1937-6-20 15358 Humboldt s Ferndale (Wild Cat Ridge); s of Ferndale, Wild Cat Ridge 457 Comment
  UC18696  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  RSA87998  Sidalcea malviflora C. L. Hitchcock 1952-6-28 19639 Humboldt Dow s Prairie, 4 miles N. of Arcata, Comment
  UC1197974  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1935-6-23 13978 Humboldt French Camp Ridge 1066 Comment
  UC146164  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1908-6 2813 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 457 Comment
  UC162918  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1911-7-6 3349 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges, btw Three Creeks and Willow Creek 762 Comment
  JEPS109836  Sidalcea malviflora subsp. patula Dean W. Taylor 2005-6-10 19343 Humboldt Bear River Ridge, along the Mattole Road 3 road miles North (uphill) from Capetown 335 Comment
  RSA46857  Sidalcea malviflora subsp. patula Doris K. Kildale 1927-7-1 3624 Humboldt Alton Hill Comment
  UC176988  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3595 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  UC902194  Sidalcea malviflora subsp. patula Joseph P. Tracy 1944-5-14 17472 Humboldt bluff back Bucksport (Eureka); bluff back of Buckport, Eureka 15 Comment
  JEPS67258  Sidalcea oregana subsp. eximia W. L. Jepson 1921-8-7 9324 Humboldt Dow's Prairie Comment
  HSC82167  Silene bernardina D. K. Imper 1985-6-18 Humboldt Above FS Rd. 10N01 just NW of Whitey's Peak 1738 Comment
  HSC103725  Silene bolanderi M. R. Mesler, C. Wilson 2010-6-18 825 Humboldt Along Hwy 36 near pmm 32.53 771 Comment
  POM118650  Silene californica Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  SEINET11933919  Silene californica F. H. Utech 1986-1 86 -414 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  SEINET10871683  Silene campanulata Imper 1983-7-6 IMPER s.n. Humboldt Six rivers national forest. T8n,r5e,sec.11. 2.5 Miles e of turnoff to big hill L.o., Hoopa indian reservation, roadside bank, petals pink, inforescence Glandular and pungent, serpintine influence, with knobcone, ceanothus Integerrimus, hickleberry, silene californica, holodescus spp., Arctostaphyllos Spp. 975 Comment
  CAS-BOT-BC174876  Silene campanulata subsp. glandulosa Clarence R. Quick 1959-7-24 59 -33 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  UCD98674  Silene gallica H. E. Parks; S. T. Parks 1937-5-1 5938 Humboldt Trinidad, Spruce Cove. Comment
  HSC36645  Silene gallica J. D. Ackerman 1974-5-25 261 Humboldt Trinidad, South Trinidad Beach, S of Trinidad Head. Comment
  HSC43853  Silene laciniata subsp. californica Maralyn O'Meara 1974-7-17 551 Humboldt Kneeland Comment
  CAS-BOT-BC389062  Silene laciniata subsp. californica A. M. Vollmer; L. Beane 1951-6-6 126 Humboldt On road between Orick and Weitchpec Comment
  HSC4172  Silene laciniata subsp. californica Lincoln Constance, A. A. Beetle 1940-5-16 2610 Humboldt Above Alton Comment
  HSC4174  Silene laciniata subsp. californica R. Spellenberg 1964-6-16 434 Humboldt 0.25 mi. W of Hwy. 299 bridge over S Fork of Trinity River Comment
  SEINET201026 Image available Silybum marianum Joseph P. Tracy 1938-7-6 16026 Humboldt Big Lagoon. 12 Comment
  UC1222649  Sisymbrium altissimum Joseph P. Tracy 1950-8-20 19322 Humboldt 8 mi below Orleans (near Slate Creek, along Klamath River at Big Bar); Klamath River, Big Bar 121 Comment
  SEINET6883434  Sisyrinchium bellum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles sou theast of Kneeland. Comment
  UC1051527  Sisyrinchium bellum Helen K. Sharsmith 1953-6-28 4384 Humboldt between Bell Springs and Blue Rock Ranch (on Bell Springs Road); Inner North Coast Ranges 853 Comment
  UC1197804  Smilacina racemosa Joseph P. Tracy 1936-8-7 15106 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UC15044  Smilacina stellata J. P. Tracy 1901-4-26 1057 Humboldt Humboldt Hill Immediate Vicinity of Eureka 0 Comment
  UC577403  Solanum umbelliferum Joseph P. Tracy 1937-6-20 15340 Humboldt Bear River, 10 mi up stream from the mouth Bear River 152 Comment
  UC1196153  Solanum umbelliferum Joseph P. Tracy 1934-6-20 13240 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  CAS-BOT-BC365436  Solidago elongata Doris K. Kildale 1926-7-11 2369 Humboldt Capetown - Ferndale road near Mountain Glen Comment
  HSC22503  Solidago elongata Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC57904  Solidago elongata Gilbert Muth 1979-7-31 11501 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  UC1070251  Solidago elongata H. L. Person 1932-7-19 Humboldt Lindsay Creek Eureka Quad, Lindsay Creek Comment
  UC1223177  Solidago elongata Joseph P. Tracy 1949-8-11 18458 Humboldt Snow Camp 1402 Comment
  UC524127  Solidago elongata Ira L. Wiggins 1932-7-25 5895 Humboldt near McKinleyville Comment
  SEINET6417801 Image available Solidago occidentalis S. K. Harris, C. Wilder 1938-9-7 879 Humboldt Van Dusen River, above Blue Slide Comment
  CAS-BOT-BC365672  Solidago spathulata Doris K. Kildale 1926-4-9 1745 Humboldt Samoa Peninsula Comment
  UC165033  Solidago spathulata J. P. Tracy 1901-8-7 1268 Humboldt opposite Eureka (Ocean Beach of Samoa); Samoa Comment
  SEINET11383162 Image available Solidago spathulata S. K. Harris 1939-1 990 Humboldt At Samoa. Comment
  BLMAR663  Solidago velutina subsp. californica Jennifer Wheeler 2012-7-12 663 Humboldt King range, Strawberry rock 253 Comment
  LA203960  Solidago velutina subsp. californica Joseph P. Tracy; 1937-9-5 15682 Humboldt Trinty River Valley, at Willow Creek 152 Comment
  UC1541619  Solidago velutina subsp. californica H. E. and S. T. Parks 1937-9-1 24081 Humboldt Trinidad , Trinidad (Spruce Cove) 64 Comment
  UCD136155  Sonchus oleraceus Linda M. Barker 1976-7-5 1644 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC60123  Sonchus oleraceus M. A. Baker 1978-5-20 559 Humboldt Hoopa Indian Reservation Comment
  CAS-BOT-BC157210  Sorbus californica Doris K. Kildale 1926-9-5 2635 Humboldt Lasseck's Peaks on trail to Red Peak 1661 Comment
  HSC90637  Sparaxis tricolor Gail Newton 1982-5-2 2515 Humboldt Elk River Wildlife Area, Eureka Comment
  UC176175  Sparganium erectum subsp. stoloniferum Joseph P. Tracy 1912-10-20 3987 Humboldt Loleta Northern Coast Ranges, Eel Valley (lower Eel Valley) 15 Comment
  HSC93850  Spartina densiflora Gordon Leppig, Kai Neander 1999-4-30 1131 Humboldt Humboldt Bay, Eureka, 30 m S of Del Norte St. fishing pier 1 Comment
  CDA3451  Spergula arvensis T. C. Fuller 1961-9-28 7061 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC79186  Spergula arvensis L. P. Janeway 1984-1-10 706 Humboldt HSU campus, N side of upper playing field 46 Comment
  HSC4264  Spergularia macrotheca D. K. Smith 1968-11-9 54 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  CAS-BOT-BC390303  Spergularia macrotheca var. macrotheca Robert F. Thorne; P. Everett 1965-8-8 35277 Humboldt N edge of Eureka, E of Hwy. 101 3 Comment
  RSA0098559  Spergularia marina George K. Helmkamp, E. A. Helmkamp 2001-7-8 7007 Humboldt North coastal strand: North spit of Samoa Peninsula, 0.5 miles N of CA-255 bridge over Humboldt Bay. 6 Comment
  HSC56168  Spergularia rubra G. L. Clifton, Griswold 1979-8-1 12059 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC19751  Spiraea douglasii Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  RSA239688  Spiraea douglasii Larry E. DeBuhr 1973-4-23 996 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  UC1199029  Spiraea douglasii Joseph P. Tracy 1924-7-13 6734 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  UCD114055  Spiraea douglasii D. Wiesendanger; F. Randall 1926-8-1 1543 Humboldt Near Arcata. Comment
  UC577329  Stachys ajugoides var. ajugoides W. E. Peacock 1936-8-1 Humboldt Arcata Bottom Arcata 9 Comment
  UC1124935  Stachys ajugoides var. rigida H. L. Person 1932-7-16 T.H. 30 Humboldt highway n Trinidad; Rock Point Quadrangle Comment
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Aug 3 2007
  UC1239721  Stachys ajugoides var. rigida Joseph P. Tracy 1941-6-15 16912 Humboldt Wilder Ridge 762 Comment
  UC577326  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UC577327  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  UC630494  Stachys ajugoides var. rigida H. E. and S. T. Parks 1937-7 24025 Humboldt Spruce Cove Trinidad 60 Comment
  CDA41013  Stachys ajugoides var. rigida T. C. Fuller 1962-8-6 9351 Humboldt Highway 299 to Blue Lake, 4.8 miles west of Willow Creek. 0 Comment
  UCLA71136  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15937 Humboldt vicinity Carlotta 30 Comment
  HSC63637  Stachys rigida J. P. Smith 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC14418  Stachys rigida P. Markle 1962-5-19 47 Humboldt Beginning of trail in woods near HSC campus near reservoir 30 Comment
  CAS-BOT-BC175345  Stellaria borealis subsp. sitchana Harley P. Chandler 1901-5-1 1196 Humboldt Humboldt Bay 30 Comment
  UC1198344  Stellaria borealis subsp. sitchana Joseph P. Tracy 1949-6-25 18349 Humboldt Box Camp; Trinity Summit 1524 Comment
  UCD99346  Stellaria crispa Joseph P. Tracy 1943-3-21 17411 Humboldt Scotia. 30 Comment
  UC204696  Stephanomeria elata Joseph P. Tracy 1918-9-29 5104 Humboldt 4 mi above mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC204697  Stephanomeria elata Joseph P. Tracy 1918-7-7 5037 Humboldt Garberville Northern Coast Ranges 152 Comment
  HSC6235  Stephanomeria exigua Richard Spjut 1968-11-2 256 Humboldt On the SW slope of Chaparral Mtn. 915 Comment
  HSC97388  Stipa lepida G. N. Bos 1965-5-15 279 Humboldt Berry Summit near Hwy. 299 Comment
  HSC44061  Streptanthus breweri Thomas W. Nelson 1977-7-4 3587 Humboldt W side of road N of Alder Springs, head of N Fork of Conley Creek 1494 Comment
  HSC70690  Streptanthus tortuosus Gail Newton 1980-7-15 1567 Humboldt Near Sims Mtn. 1311 Comment
  UC956549  Streptanthus tortuosus Freed W. Hoffman 1949-7-18 2863 Humboldt Red Mountain rd 9.6 mi from Eureka-Red Bluff Highway 1615 Comment
  CAS-BOT-BC87617  Streptanthus tortuosus Volney Rattan 1882-6-1 s.n. Humboldt South Humboldt County. Comment
  HSC74293  Swertia radiata M. A. Baker 1980-7-22 3084 Humboldt Near Salmon Mtn. 1820 Comment
  HSC98636  Swertia radiata Cara Witte 2008-7-3 825 Humboldt National Forest 1. 2 miles south from intersection with 6N01B. 1575 Comment
  HSC3999  Symphoricarpos albus var. laevigatus J. E. Lankila 1962-5-14 18 Humboldt W bank of Eel River across from Shively abour 500 ft. N of Bear Creek. Comment
  HSC56382  Symphoricarpos albus var. laevigatus Griswold, Butler 1979-7-11 6912 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC98899  Symphoricarpos albus var. laevigatus Cara Witte 2007-8-1 611 Humboldt National Forest 1 on Kinsey Ridge. 1 1/2 miles north of White Oak Opening. 1256 Comment
  HSC58804  Symphyotrichum bracteolatum G. L. Clifton, Griswold 1979-7-31 11705 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC99159  Symphyotrichum chilense P. C. Everett; E. K. Balls 1959-10-25 23960 Humboldt 14 mi. W. of Willow Creek on Hwy. 299 to Arcata 502 Comment
  HSC49139  Symphyotrichum chilense J. O. Sawyer, R. J. Cole 1978-10-10 3319 Humboldt W of Coast Guard road at intersection with Samoa Bridge Comment
  CAS-BOT-BC98973  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1215 Humboldt Trinity Summit near Ranger Station 1828 Comment
  HSC75277  Symphyotrichum hendersonii J. O. Sawyer, D. A. Thornburgh 1980-9-9 4078 Humboldt Mill Creek Lake and surrounding meadows Comment
  HSC36490  Symphyotrichum subspicatum Thomas W. Nelson, James Nelson 1975-9-3 2195 Humboldt At Rainbow Swinging Bridge Comment
  UC1409110  Symphyotrichum subspicatum Robert F. Thorne and P. Everett 1965-8-9 35336 Humboldt 3 mi n, along Hwy. 101 Eureka 1 Comment
  JEPS9922  Synthyris reniformis Charlotte Wilder 1922-3-2 Humboldt roadbanks near Beckwith's Mill; North Coast, Carlotta Comment
  UC1222774  Synthyris reniformis Joseph P. Tracy 1950-4-20 18614 Humboldt 1 mi w Dinsmore's (on Van Duzen River); Van Duzen River Comment
  UC249515  Synthyris reniformis Joseph P. Tracy 1922-4-30 6039 Humboldt along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, Brannan Mountain 914 Comment
  CAS-BOT-BC376776  Tanacetum parthenium Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Pepperwood Comment
  HSC6263  Taraxacum officinale William J. Ferlatte 1963-4-28 28 Humboldt Near 12th and B St., Arcata Comment
  HSC38883  Tauschia kelloggii J. P. Smith, Steve Selva 1970-6-14 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1197329  Tauschia kelloggii Joseph P. Tracy 1929-7-4 8632 Humboldt French Camp Ridge 1066 Comment
  HSC74647  Taxus brevifolia M. A. Baker 1980-5-17 1214 Humboldt Near Le Perron Peak 792 Comment
  HSC102633  Tellima grandiflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1618 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC56324  Tellima grandiflora Overton, Butler 1979-8-2 12666 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC99434  Tellima grandiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 83 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC100656  Tellima grandiflora Carl C. Marshall May 1886 190 Humboldt Damp places near streams. Comment
  HSC20425  Tellima grandiflora J. F. Knezevich 1968-5-23 459 Humboldt Above Trinidad, N end of Big Lagoon 0 Comment
  SEINET12217338  Tellima grandiflora F. H. Utech 1988-1 88 -279 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, mile marker 42.00, bluffs above Van Duzen River 800 Comment
  UC160922  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1908-6 2769 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1196167  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1935-5-25 13825 Humboldt along head of Larrabee Creek Blocksburg 518 Comment
  CAS-BOT-BC81306  Thuja plicata Doris K. Kildale 1927-5-13 3130 Humboldt Green Point, Redwood Creek road Comment
  UC615042  Thuja plicata Beryl O. Schreiber 1934-6-5 1132 Humboldt 5 mi e of Blue Lake (road to Redding, wooded slope) Comment
  HSC22843  Thysanocarpus curvipes D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5060 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  SDSU9573  Tiarella Harvey 1938-8-13 2240 Humboldt Stephens Grove. Comment
  HSC55631  Tiarella trifoliata var. unifoliata Overton, Butler 1979-7-24 9633 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  SBBG21852  Tiarella trifoliata var. unifoliata D. Myrick 1964-7-26 979 Humboldt Redwood Hwy 101 near Garberville 152 Comment
  SBBG2855  Tiarella trifoliata var. unifoliata H. and M. Dearing 1939-5-15 3703 Humboldt E fork of Willow Crk 762 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
  POM48093  Tiarella trifoliata var. unifoliata J. B. Feudge 1923-7-19 58 Humboldt Fortuna. 15 Comment
  RSA12556  Tiarella trifoliata var. unifoliata Carl B. Wolf 1934-7-2 5883 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC62637  Tolmiea diplomenziesii R. D. Zortman 1963-5-12 43 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  UC154107  Tolmiea diplomenziesii Joseph P. Tracy 1908-6 2876 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  HSC26806  Tonella tenella Thomas W. Nelson 1971-4-24 400 Humboldt Overlooking the E Fork of Willow Creek, S of Hwy. 299 Comment
  HSC64158  Torilis arvensis J. O. Sawyer, K. A. Sawyer 1979-6-24 3404 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC1561282  Torilis arvensis Barbara Ertter with Thomas J. Delendick 1987-5-16 6916 Humboldt Hwy 299 roadside ca 8 mi e Arcata (9 1/2 mi w of Lord Ellis summit); w of Lord Ellis summit Comment
  UC585612  Torilis arvensis Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch) 304 Comment
  JEPS14254  Torilis arvensis subsp. arvensis Mrs. Archie Cathey 1938-7-30 Humboldt Miranda at Cathey Ranch 152 Comment
  SEINET244810 Image available Torreyochloa pallida var. pauciflora J. P. Tracy 1934-7-18 13429 Humboldt Grouse Mountain. 1524 Comment
  UCD93230  Torreyochloa pallida var. pauciflora Joseph P. Tracy 1940-10-5 16742 Humboldt mouth of Little River. 3 Comment
  JEPS63936  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2000 Humboldt S. Fork Trinity R., Martin's Ranch Comment
  CAS-BOT-BC377100  Tragopogon porrifolius Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  JEPS5769  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1937-7-25 15564 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC95824  Trientalis latifolia Kevin Thomas 2004-4-26 16 Humboldt Jacoby Creek Rd. Comment
  JEPS43082  Trientalis latifolia Joseph P. Tracy 1926-5-22 7509 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  HSC89588  Trientalis latifolia M. Roantree 1985-5-24 56 Humboldt NW side of Trinidad Head, along trail Comment
  SEINET12157031  Trifolium albopurpureum J. P. Tracy 1948-1 17989 Humboldt W side of top of Spruce Grove Ridge near Harris Comment
  UC165509  Trifolium albopurpureum var. albopurpureum Harley P. Chandler 1901-6-1 1321 Humboldt Hupa Indian Reservation (now spelled Hoopa on modern maps) North Coast Ranges 152 Comment
  UC1223500  Trifolium bifidum var. decipiens Joseph P. Tracy 1948-6-13 18027 Humboldt near Burr Creek (Larrabee Creek (Harris Trip)); Alder Point Comment
  POM118629  Trifolium dubium Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UCD108882  Trifolium dubium W. A. Williams 1951-6-14 s.n. Humboldt 3 miles E of Hydesville, Bech Ranch swale. Comment
  RSA21098  Trifolium eriocephalum subsp. eriocephalum Carl B. Wolf 1937-6-14 8826 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  JEPS65883  Trifolium fucatum W. L. Jepson 1934-5-8 16718 Humboldt n Redway (South Fork Eel River) Comment
  UC1223454  Trifolium gracilentum Joseph P. Tracy 1934-5-13 13203 Humboldt near Samoa Comment
  HSC45169  Trifolium hirtum R. Sutherland 1978-5-13 1 .13578 Humboldt 285 Comment
  RSA168859  Trifolium hybridum Joseph P. Tracy 1938-6-15 15926 Humboldt Salmon Creek Flats, south end Humboldt Bay. Comment
  UCSB28369  Trifolium incarnatum Phelps, M. 1972-3-22 Humboldt 20 yds. north of south Garberville Exit, Hwy. 101 213 Comment
  HSC58628  Trifolium longipes Overton, Butler 1979-7-31 11447 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC75475  Trifolium longipes J. O. Sawyer 1980-7-18 3622 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC98880  Trifolium longipes subsp. hansenii Cara Witte 2007-6-1 166 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1355 Comment
  UCD111290  Trifolium longipes subsp. oreganum Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  HSC98896  Trifolium longipes subsp. shastense Cara Witte 2008-6-11 706 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1438 Comment
  UC1223331  Trifolium longipes var. oreganum Joseph P. Tracy 1933-7-11 12698 Humboldt between Horse Mt. and Grouse Mt. (near Clear Lake) Comment
  UC495660  Trifolium macraei Joseph P. Tracy 1927-6-8 8114 Humboldt Trinidad; Northern Coast Ranges, Trinidad 15 Comment
  UC160906  Trifolium microcephalum Joseph P. Tracy 1910-6-5 3144 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  UC1197551  Trifolium microdon Joseph P. Tracy 1932-5-1 9892 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  SEINET12157235  Trifolium microdon J. P. Tracy 1936-1 14840 Humboldt nr Samoa, on Humboldt Bay 6 Comment
  POM162075  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5438 Humboldt Phillipsville. Facing south fork of Eel River. 122 Comment
  HSC23732  Trifolium repens Tim Baroni 1971-7-6 117 Humboldt 8 mi. S of Ferndale on Mattole Rd. Comment
  UC1223325  Trifolium repens Joseph P. Tracy 1933-7-25 12861 Humboldt near Clear Lake; Grouse Mtn 1524 Comment
  UC33491  Trifolium repens Chesnut and Drew 1888-7-11 Humboldt Eureka Comment
  HSC28180  Trifolium repens Richard Curtis 1973-9-27 18 Humboldt Arcata, on the N side of 7th St. just before it crosses the freeway. Comment
  HSC45118  Trifolium variegatum R. Sutherland 1978-5-19 16 .19578 Humboldt 165 Comment
  HSC45131  Trifolium variegatum R. Sutherland 1978-6-1 3 .1678 Humboldt 213 Comment
  UC1223530  Trifolium variegatum var. melananthum Joseph P. Tracy 15374 Humboldt opposite Willow Creek (same place as no. 15331 and 15331 1/2); Trinity River Valley Comment
  RSA195477  Trifolium variegatum var. variegatum C. R. Gunn 1963-6-3 2701 Humboldt 1/2 mile south of Korbel Comment
  JEPS4131  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC162835  Trifolium wormskioldii J. P. Tracy 1900-5-24 802 Humboldt Eureka vicinity Comment
  RSA167422  Trifolium wormskioldii Joseph P. Tracy 1938-6-12 16056 Humboldt Fields Landing. Moist flats along edges of foothills, 2 miles south of town. 6 Comment
  CHSC68791  Triglochin maritima Vernon Oswald 1997-6-5 8531 Humboldt Arcata Oxidation Ponds on South G St., south of Hwy. 255. 6 Comment
  HSC62989  Triglochin maritima David Wheeler 1979-4-22 79 Humboldt Mad River Slough, 1 mi. W of the intersection of Mad River Rd. and Iverson Rd. Comment
  UC1197807  Trillium albidum Joseph P. Tracy 1933-6-13 12574 Humboldt near summit on rd. from Hoopa westward to Bair's (Hoopa Mt.); Hoopa Mt. 1066 Comment
  UCD139896  Trillium albidum R. N. Raynor 1935-3-13 s.n. Humboldt Fort Seward. Comment
  UC1222530  Trillium albidum Joseph P. Tracy 1950-5-7 18646 Humboldt head of S. Yager Comment
  HSC28002  Trillium kurabayashii Maralyn O'Meara 1972-5-29 77 Humboldt 18.6 mi. up Bald hills Rd. from junction with Hwy. 101 near Orick 915 Comment
  HSC32140  Trillium ovatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5608 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC70327  Trillium ovatum M. A. Baker 1980-6-8 1882 Humboldt Near Buck Flat. 1554 Comment
  HSC71798  Trillium ovatum Gail Newton 1980-6-16 169 Humboldt Near Monks Camp. 1097 Comment
  RSA378216  Trillium ovatum Jane Turner, Francis M. Ball 1962-7-10 1140 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  UC1197823  Trillium ovatum J. P. Tracy 1901-3-31 999 Humboldt immediate vicinity of Eureka Eureka 0 Comment
  SD112794  Trillium ovatum Darley F. Howe 1963-5-26 3557 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  SEINET3888783  Trillium ovatum Michael Dalke 1979-3-31 8 Humboldt Eureka Quadrangle- Azalea Park 2 miles E of U.S. 101.; 0 24 Comment
  UC416790  Triodanis biflora Harley P. Chandler 1901-6-16 1514 B Humboldt Somes Bar North Coast Ranges, Klamath River, Somes Bar (Camp 276) 426 Comment
  UC1222457  Triphysaria pusilla Joseph P. Tracy 1935-5-25 13905 Humboldt Dobbyn Creek 152 Comment
  UC199379  Triphysaria versicolor subsp. faucibarbata Joseph Burtt Davy and Walter C. Blasdale 1899-5 Humboldt Arcata; North Coast Ranges, Arcata Comment
  UC1198041  Triphysaria versicolor subsp. versicolor J. P. Tracy 1901-5-16 1091 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  JEPS26252  Triphysaria versicolor subsp. versicolor J. P. Tracy 1900-6-25 863 Humboldt immediate vicinity Eureka; immed vicinity of Eureka 0 Comment
  HSC48993  Trisetum canescens M. Andre Baker 1979-5-23 753 Humboldt Comment
  HSC99524  Trisetum canescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 187 Humboldt Near North Trinity Mtn, 11. 5 mi. E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA44448  Trisetum canescens Henry M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  UC905633  Trisetum canescens David D. Keck 1948-6-2 6006 Humboldt 4 mi w Willow Creek (near boundary of Six River National Forest, e side of Rocky Ridge, e of Berry's summit); Rocky Ridge 457 Comment
  UCD93905  Trisetum cernuum A. H. Murphy 1951-5-15 37 Humboldt Toston Ranch, 3 miles west of Miranda. Comment
  UCD93911  Trisetum cernuum Joseph P. Tracy 1950-7-2 18962 Humboldt Happy Camp Mountain. In Trinity Summit Range, 6 miles northeast of Hawkins Bar. At Fern Spring. 1280 Comment
  HSC31222  Triteleia bridgesii D. E. Anderson 1972-6-20 5725 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC15027  Triteleia bridgesii J. Burtt Davy 1899-6-19 5643 Humboldt Hoopa Mtn North Coast Ranges Comment
  HSC44872  Triteleia hyacinthina J. P. Smith, J. O. Sawyer 1973-5-12 6664 Humboldt 1.0 mi. from Redwood Creek on Hoopa Rd. Comment
  CAS-BOT-BC526348  Triteleia laxa Mrs. E. C. Sutliffe 1927-6-1 s.n. Humboldt Near Ben Bow Resort Comment
  RSA167426  Triteleia laxa Joseph P. Tracy 1950-6-8 18755 Humboldt At Davis Creek Mouth, south of Cape Mendocino Comment
  SEINET12053134  Triteleia laxa Unknown 1936-1 13196 Humboldt near Ukiah Comment
  UC1222687  Triteleia laxa Joseph P. Tracy 1950-6-8 18755 Humboldt windswept flat s Cape Mendocino; Davis Creek Mouth 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
  UC1174867  Tsuga heterophylla P. C. Everett and E. K. Balls 1959-10-25 23963 Humboldt 22 mi w from Willow Creek (along U. S. Hwy. 299 to Arcata); U. S. Hwy. 299 579 Comment
  UC1196281  Umbellularia californica Joseph P. Tracy 1926-12-5 7835 Humboldt Blue Slide, on Van Duzen River Van Duzen River; Northern Coast Ranges, Blue Slide, Van Duzen River 91 Comment
  UC205458  Umbellularia californica Joseph P. Tracy 1919-9-13 5196 Humboldt Trinity River, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River, Willow Creek 152 Comment
  UC915720  Umbellularia californica W. L. Jepson 1903-6-13 36 Humboldt Briceland Comment
  UCD111533  Urtica dioica subsp. gracilis Linda M. Barker 1976-9-3 1696 Humboldt 3 miles west of Arcata. Comment
  UC22192  Vaccinium cespitosum J. P. Tracy 1899-3 Humboldt Eureka Comment
  CAS-BOT-BC199307  Vaccinium ovatum Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC199325  Vaccinium ovatum Ira L. Wiggins 1930-6-25 4613 Humboldt 2 miles north of Samoa Comment
  HSC31471  Vaccinium ovatum Steve Selva, Roger Jensen 1974-8-28 96 Humboldt Behind Humboldt State University, Arcata. Comment
  HSC34153  Vaccinium ovatum Linda M. Barker 1974-5-11 186 Humboldt Redwoods National Park, beside Bald Hills Road 366 Comment
  RSA22543  Vaccinium ovatum H. E. Parks, S. T. Parks, C. R. Parks 1937-04 5638 Humboldt Spruce Cove, Trinidad. Comment
  UCD118085  Vaccinium ovatum B. L. Kay 1955-4-10 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  UCD166890  Vaccinium ovatum Colleen Rossier 2016-9-17 8 Humboldt Sunny Ridge Road, plot Sunny Ridge Red. 579 Comment
  CAS-BOT-BC199426  Vaccinium parvifolium H. E. McMinn 1922-8-4 333 Humboldt Near Van Dusen [Duzen] River Comment
  HSC81827  Valeriana sitchensis subsp. sitchensis Thomas W. Nelson 1979-7-11 5027 Humboldt Along trail from Grogan's Hole to North Trinity Mtn., from Grogan's Hole to summit. Comment
  HSC102568  Vancouveria hexandra M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1555 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC76048  Vancouveria hexandra D. E. Breedlove 1962-6-8 3068 Humboldt Along U.S. Highway 101, 8 miles north of Orick. 60 Comment
  SJSU1032  Vancouveria hexandra A. C. Browne 1950-5-23 Humboldt Weott Comment
  HSC64196  Vancouveria planipetala J. O. Sawyer, M. A. Ericksen 1979-6-23 3372 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC8778  Velezia rigida Harley P. Chandler June, 1901 1306 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC153968  Veratrum californicum var. californicum Joseph P. Tracy 1910-7-24 3158 Humboldt 1.5 mi s Field's Landing; Humboldt Bay Region 0 Comment
  HSC98057  Veratrum insolitum Cara Witte 2007-7-19 544 Humboldt Along National Forest 1. Approximately 1 mile south of turnoff to Cold Spring. 1423 Comment
  UC1198209  Veratrum insolitum Joseph P. Tracy 1949-7-19 18386 Humboldt head Friday Ridge; Grouse Mountain 1524 Comment
  HSC77338  Veronica americana L. P. Janeway 1983-4-30 238 Humboldt SE bank of creek along SW entrance to HSU campus 21 Comment
  RSA12557  Veronica americana Carl B. Wolf 1934-7-2 5882 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  JEPS16498  Veronica scutellata Milo S. Baker 1923-8-3 173 Humboldt 6 mi n of Arcata; North Coast trip Comment
  JEPS4464  Veronica scutellata W. L. Jepson 1902-6-24 1921 Humboldt between Eureka and Arcata (Expedition from Ukiah to the Hupa Indian Reservation) Comment
  RSA800193  Vicia Robert F. Thorne, Percy C. Everett 1965-8-8 35242 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UC175633  Vicia americana var. americana Joseph P. Tracy 1913-6-20 4224 Humboldt nw slope Buck Mountain (lower foothills); Northern Coast Ranges 762 Comment
  RSA20860  Vicia benghalensis Carl B. Wolf 1937-6-18 8899 Humboldt 1/2 miles E of Alton. 21 Comment
  HSC71618  Vicia hirsuta J. P. Smith 1973-5-26 6812 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC43171  Vicia tetrasperma R. Sutherland 1976-8-13 4 .13876 Humboldt 168 Comment
  SEINET9302671  Vicia tetrasperma Unknown 1963-6-2 2693 Humboldt Scattered along roadside in a mixed evergreen forest. Two mi SE of Arcata on road to quarry. Comment
  HSC21756  Viola adunca D. E. Anderson 1961-10-1 1856 Humboldt E side of Freshwater Lagoon Comment
  HSC21757  Viola adunca N. J. Cole, D. E. Anderson 1965-4-13 16 Humboldt 1.5 mi. SE of Maple Creek Rd. jct. with Bald Hills Rd., SE of Korbel Comment
  HSC32389  Viola adunca Linda M. Barker 1974-5-11 181 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC91932  Viola adunca E. Mackey 1986-5-13 Humboldt Patrick's Point State Park; Palmer's Point Comment
  UC1198439  Viola adunca Joseph P. Tracy 1941-3-23 16806 Humboldt by old Strong's District School House (5 mi e of town); Carlotta 45 Comment
  CAS-BOT-BC263948  Viola adunca L. B. Kildale 1927-7-23 3788 Humboldt Hoaglin Lake near [Lass---s] Peaks 1524 Comment
  RSA23651  Viola adunca Carl B. Wolf 1939-7-7 9518 Humboldt Orick to Weitchpec Road 10 miles from Martin's Ferry. 305 Comment
  HSC55596  Viola cuneata Overton, Butler 1979-7-23 9407 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC56145  Viola glabella G. L. Clifton, Griswold 1979-8-1 11974 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC902116  Viola glabella Joseph P. Tracy 1942-6-23 17242 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC902117  Viola glabella Joseph P. Tracy 1948-8-15 18142 Humboldt on Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  HSC26335  Viola glabella Thomas W. Nelson 1971-3-30 363 Humboldt Beside Howe Creek Comment
  UC1103561  Viola glabella Joseph P. Tracy 1923-4-8 6178 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  HSC99353  Viola macloskeyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 2 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1103555  Viola macloskeyi Joseph P. Tracy 1939-7-9 16345 Humboldt Snow Camp 1402 Comment
  UC575310  Viola praemorsa subsp. praemorsa Milo S. Baker 1935-4-18 8059 Humboldt about 2 mi w of Bridgeville (Kneeland Hwy on road to Carlotta, near headwaters of South Fork of Yager); South Fork of Yager Comment
  UC1761977  Viola sempervirens J. P. Tracy Apr 1941 Humboldt somewhere near Willow Creek Comment
  RSA121893  Vitis californica H. S. Yates 1936-6-24 5871 Humboldt 2 miles E of Bear Butte. Comment
  UCD16884  Vitis californica H. Olmo 1934-9-30 s.n. Humboldt California. Humboldt County: on highway near Blue Lake. Comment
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Jun 14 2012
  CAS-BOT-BC198761  Vulpia bromoides Harley P. Chandler 1901-5-1 1119 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC198763  Vulpia bromoides Doris K. Kildale 1926-5-2 1857 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  HSC9835  Vulpia bromoides R. H. Berg 1963-3-9 6 Humboldt Fickle Hill area, Arcata. Comment
  UCD93467  Vulpia bromoides Harley P. Chandler 1901-5-1 1175 b Humboldt Humboldt County. 30 Comment
  HSC98874  Vulpia microstachys Cara Witte 2007-5-23 99 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.5 miles south of intersection with 5N04 and 4N32E. 1402 Comment
  UC1145191  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-7-5 15039 Humboldt Grouse Mountain 1524 Comment
  UCD94898  Vulpia myuros var. hirsuta A. Murphy 1951-4-2 s.n. Humboldt along Highway 101, 0.75 mile south of Phillipsville. Comment
  HSC20445  Whipplea modesta John A. Dubois 1962-5-12 5 Humboldt 20 mi. E of Arcata Comment
  HSC42304  Whipplea modesta Tom Duebendorfer 1977-5-15 50 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC62987  Whipplea modesta David Wheeler 1979-4-21 77 Humboldt 4 mi. past Maple Creek bridge over Mad River on the way to Eureka, hills above Butler Valley Comment
  JEPS301  Woodwardia fimbriata W. L. Jepson 1932-7-30 16453 Humboldt bluff at Bull Creek Comment
  JEPS32068  Wyethia angustifolia Joseph P. Tracy 1933-8-6 12937 Humboldt French Camp Ridge 1066 Comment
  UC128618  Wyethia angustifolia P. E. Goddard Jul 1910 Humboldt Hupa Valley Comment
  HSC31210  Xerophyllum tenax D. E. Anderson 1972-6-20 5728 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  CAS-BOT-BC527078  Xerophyllum tenax Volney Rattan 1903-1-1 s.n. Humboldt Near Mad River Bridge Comment
  HSC8421  Zeltnera muehlenbergii William J. Ferlatte, B. D. Rogers 1966-8-15 3130 Humboldt North Bank Rd., 2 mi. N of Arcata Comment
  HSC31209  Zigadenus micranthus D. E. Anderson 1972-6-20 5741 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC74387  Zigadenus micranthus M. A. Baker 1980-6-28 2505 Humboldt Near Mad River Buttes 1445 Comment
  CAS-BOT-BC532735  Zigadenus micranthus Doris K. Kildale 1926-5-9 1984 Humboldt Kneeland Prairie 762 Comment



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