Search Results — 2000 specimen records retrieved (1391 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC73468  Abies X shastensis Doris K. Kildale 1925-8-17 1200 Humboldt Trinity Summit 1889 Comment
  UC1173736  Abies grandis Joseph P. Tracy 1939-5-30 16298 Humboldt 1 mi below Dinsmore's (along bank of Van Duzen River); Van Duzan River 731 Comment
  UC502904  Abies grandis Joseph P. Tracy 1932-3-20 9781 Humboldt Trinidad Northern Coast Region, Trinidad 60 Comment
  CAS-BOT-BC73483  Abies magnifica Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mts. 1828 Comment
  HSC70562  Abies procera M. A. Baker 1980-7-19 3042 Humboldt Near Bret Hole. 1814 Comment
  HSC26920  Abronia latifolia Brad Klipfel 1973-7-30 217 Humboldt Near Samoa Comment
  HSC38927  Abronia latifolia Linda M. Barker 1976-5-13 1490 Humboldt 3 mi. W of Arcata. Comment
  UCD109781  Abronia latifolia Linda M. Barker 1976-5-13 1490 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC59682  Abronia latifolia George Kirn 1977-10-14 Humboldt Dunes .5 mi. NW of Samoa 8 Comment
  RSA0025094  Abronia latifolia Robert F. Thorne, P. C. Everett 1965-8-5 35170 Humboldt Samoa Dunes. 3 Comment
  CDA40642  Acaena novae-zelandiae G. D. Barbe, E. C. Whitney & Warren Simas 1978-7-26 2416 Humboldt East of Arcata airport between Fieldbrook and Crannell; Vic Guynup property. 0 Comment
  SEINET3026058 Image available Acer circinatum Joseph P. Tracy 1942-7-26 17294 .5 Humboldt Valley of SOuth Yager Creek 610 Comment
Read comments
May 1 2015
  UC205485  Acer glabrum var. glabrum Joseph P. Tracy 1919-9-23 5291 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  CAS-BOT-BC331584  Acer macrophyllum Doris K. Kildale 1927-4-16 3022 Humboldt Between Island Mountain and Fort Seward Comment
  HSC2814  Acer macrophyllum Elrid H. Spinas 1948-6-16 61 Humboldt Horse Mtn. Comment
  HSC60002  Acer macrophyllum M. A. Baker 1977-6-6 370 Humboldt Hoopa Comment
  CDA30207  Achillea millefolium M. K. Beyers, I. Shepardson 2009-9-13 255 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC28955  Achillea millefolium Thomas W. Nelson 1971-11-11 597 Humboldt Foot of Murray Rd., McKinleyville. Comment
  HSC4548  Achillea millefolium R. I. Bonn 1965-4-3 15 Humboldt Four miles West of Arcata on Lanphere Rd. Comment
  HSC91930  Achillea millefolium E. Mackey 1987-5-2 Humboldt Patrick's Point State Park; Palmer's Point Comment
  UC1199375  Achillea millefolium J. P. Tracy 1901-7-28 1220 Humboldt immediate vicinity Eureka 0 Comment
  HSC36212  Achillea millefolium John Rehling 1975-9-26 108 Humboldt Near Alliance Rd. Comment
  UC205165  Achillea millefolium Joseph P. Tracy 1919-9-18 5243 Humboldt in comparatively dry places Trinity Summit; Northern Coast Ranges 1524 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
  CAS-BOT-BC400001  Achlys californica E. Gundershaug; K. White; D. Johnson 1994-5-17 23 Humboldt 0.5 miles N of Hwy. 299 on old logging road, 17 miles E of Blue Lake 510 Comment
  HSC76283  Achlys triphylla Teresa Prendusi 1981-7-9 181 Humboldt Near Cedar Camp. 1268 Comment
  CAS-BOT-BC400026  Achlys triphylla Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Divide west of Willow Creek Comment
  HSC3330  Achlys triphylla Francis Winter 1960-4-23 Humboldt 1 mi. S of Simpson Creek, Korbel-Maple Creek Rd. 213 Comment
  CAS-BOT-BC210657  Achnatherum lemmonii Joseph P. Tracy 1933-7-25 12849 Humboldt Grouse Mountain 1524 Comment
  UC1152041  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt halfway between Snow Camp and Twin Lakes (at Preston's old gate near road) Comment
  UCD50676  Achnatherum lemmonii A. H. Murphy 1947-6-24 s.n. Humboldt Horse Mtn., s.e. of Berry's Summit (US Hwy. 299) east of Blue Lake, Humboldt County, California. 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
  UCD103756  Acmispon denticulatus R. Tofsrud 1951-1 s.n. Humboldt Location unknown. Comment
  UC668267  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp 1402 Comment
  UC180208  Aconitum columbianum Joseph P. Tracy 1914-7-4 4526 Humboldt High Prairie on Bald Mt.; Northern Coast Ranges 1066 Comment
  CAS-BOT-BC412600  Aconogonon alaskanum Volney Rattan 1883-6-18 s.n. Humboldt Near the summit between Pilot Creek and the Trinity River Comment
  BLMAR360  Actaea rubra Clara Sander 2003-7-7 360 Humboldt King range, Roadside 18 Comment
  JEPS60386  Actaea rubra W. L. Jepson 1932-7-29 16445 Humboldt Glenbrook Van Duzen R., Grizzly Flat Comment
  HSC44521  Adenocaulon bicolor Brad Klipfel 1973-7-1 128 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC73574  Adenocaulon bicolor Gail Newton 1980-7-14 1511 Humboldt Near Deadman Ridge 1097 Comment
  HSC76345  Adenocaulon bicolor Denis Kearns 1981-7-23 383 Humboldt Near Whiteys Peak 732 Comment
  HSC97952  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  HSC956  Adiantum aleuticum H. E. Parks, S. T. Parks May 1930 749 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC62290  Adiantum aleuticum Doris K. Kildale 1926-8-8 2448 Humboldt Bull Creek Flat Comment
  UC479099  Aesculus californica Marcus E. Jones, A. M. 1931-7-12 28938 Humboldt Alton Comment
  HSC56442  Agastache urticifolia Griswold, Butler 1979-7-12 7184 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  JEPS18702  Ageratina occidentalis Milo S. Baker 1923-7-21 447 Humboldt Bed of Van Duzen North Coast, Bed of Van Duzen Comment
  HSC57685  Agoseris aurantiaca G. L. Clifton, Griswold 1979-7-25 10901 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC74403  Agoseris grandiflora Gail Newton 1980-6-28 747 Humboldt Near Mad River Butte. 1536 Comment
  JEPS36264  Agoseris grandiflora Joseph P. Tracy 1921-7-24 5859 Humboldt Kneeland Prairie North Coast Ranges of California, Kneeland Prairie 762 Comment
  HSC44088  Agoseris grandiflora Thomas W. Nelson, Jane P. Nelson 1977-9-3 3723 Humboldt N of Alder Springs 1555 Comment
  HSC4594  Agoseris grandiflora D. E. Anderson 1962-7-14 2257 Humboldt Along Barry Ridge Rd. Comment
  UC1222928  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-15 19047 Humboldt 1 mi n Willow Creek; Trinity River Comment
  CAS-BOT-BC15348  Agoseris heterophylla J. P. Tracy 1906-5-13 2455 Humboldt Sand hills of Ocean Beach at Samoa, opp. Eureka Comment
  HSC79419  Agoseris heterophylla Kenneth Clark 1980-4-18 582 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  UC1199485  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1932-6-26 10272 Humboldt (ne of Bridgeville) Fort Baker Ranch; Bridgeville 762 Comment
  UC450000  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear River Ridge; Northern Coast Ranges 304 Comment
  HSC32335  Agoseris retrorsa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5616 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC73664  Agoseris retrorsa M. A. Baker 1980-7-15 2967 Humboldt Near Whiting Ridge. 1341 Comment
  SEINET3134343  Agrostis J. B. Davy, W. C. Blasdale 1899-6-13 5521 Humboldt Near Pepperwood Comment
  RSA22705  Agrostis densiflora H. E. Parks 1935-06 5607 Humboldt Spruce Cove, Trinidad. Comment
  HSC39906  Agrostis exarata J. P. Smith, Steve Selva 1970-6-30 4129 Humboldt Comment
  JEPS75421  Agrostis exarata W. L. Jepson 1932-7-30 16451 Humboldt in redwood forest Bull Creek 121 Comment
  POM207131  Agrostis exarata W. C. Blasdale, Jos Burtt Davy 1899-6-13 5493 Humboldt Near Camp Grant Comment
  UC1145070  Agrostis exarata Joseph P. Tracy 1938-7-6 16021 Humboldt in bog Big Lagoon 6 Comment
  UC204711  Agrostis exarata Joseph P. Tracy 1918-7-5 5016 Humboldt White Thorn Valley, in dried up ditch Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC58752  Agrostis gigantea Overton, Butler 1979-7-24 9620 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  UC511548  Agrostis hallii Ira L. Wiggins 1932-7-25 5896 Humboldt roadsides near McKinleyville Comment
  UCD52683  Agrostis hallii J. I. Mallory 1955-9-17 124 Humboldt one mile west of McClellan Ranch. 304 Comment
  SEINET10510269  Agrostis microphylla A. Arthur Heller 1923-7-8 Heller 13772 Humboldt Plentiful in a depression in a field in clay soil at Fortuna. Comment
  CAS-BOT-BC139132  Agrostis oregonensis Joseph P. Tracy 1934-7-18 13452 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  RSA10024  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt Bald Mountain; near High Prairie 1067 Comment
  UC1145064  Agrostis oregonensis Joseph P. Tracy 1937-7-29 15582 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC187294  Agrostis stolonifera Joseph P. Tracy 1909-7-11 3012 Humboldt Eureka Northern Coast Region 0 Comment
  UCD53462  Agrostis stolonifera P. B. Kennedy 1928-7-16 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  HSC33763  Aira caryophyllea John S. Palmer 1975-5-24 369 Humboldt Off Samoa Blvd., across from boat landing Comment
  RSA286352  Aira praecox R. F. Thorne 1974-7-29 45069 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  CAS-BOT-BC445358  Alisma plantago-aquatica Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans Comment
  UC176166  Allium amplectens Joseph P. Tracy 1912-7-26 3844 Humboldt Lawrence Creek Northern Coast Ranges, Kneeland Prairie, Lawrence Creek 762 Comment
  CAS-BOT-BC460751  Allium amplectens S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3401 Humboldt Crossing of Little Van Duzen River between Bridgeville and Dinsmore's. 710 Comment
  CAS-BOT-BC460754  Allium amplectens Carl B. Wolf 1937-6-14 8810 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  POM169690  Allium bolanderi H. P. Chandler 1901-06 1434 Humboldt Klamath River. Comment
  HSC38518  Allium falcifolium D. E. Anderson, J. P. Smith 1971-6-18 - 1082 Humboldt Horse Mtn. Comment
  HSC43977  Allium falcifolium B. Klipfel 1974-6-25 435 Humboldt Horse Mtn., near the towers Comment
  HSC73536  Allium falcifolium Gail Newton 1980-7-14 1497 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC469016  Allium falcifolium Thomas W. Nelson; James L. Nelson 1980-6-10 5400 Humboldt Blocksburg Quad.; Along Swayback Ridge 4-wheel drive road 1.25 miles south of junction with Forest Service road. Comment
  CAS-BOT-BC469017  Allium falcifolium Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1676 Comment
  HSC32124  Allium hoffmanii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5588 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC42107  Allium validum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3704 Humboldt Along S side of Lassic Peak 1463 Comment
  JEPS59052  Allotropa virgata W. L. Jepson 1902-7-25 2117 Humboldt Trinity Summit Comment
  SBBG1284  Alnus incana subsp. tenuifolia H. and M. Dearing 1939-6-23 3691 Humboldt E fork of Willow Crk Comment
  UC275561  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6575 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  CAS-BOT-BC169541  Alnus rubra Carl B. Wolf 1930-10-26 1767 Humboldt SO edge of Bog Lagoon, near Redwood Highway Bridge 9 Comment
  CAS-BOT-BC169544  Alnus rubra Joseph P. Tracy 1930-7-27 9113 Humboldt Mattole River, near Petrolia 15 Comment
  HSC31798  Alnus rubra Steve Selva, Roger Jensen 1974-8-27 82 Humboldt Along Hwy. 299, approx. 10 mi. E of Blue Lake Comment
  HSC37963  Alnus rubra Peter Sorensen 1976-6-12 Humboldt Woodley Island Comment
  SEINET12030339  Alnus rubra F. H. Utech 1986-1 86 -415 Humboldt between Capetown & Ferndale on Mattole Creek, SW slope of Bear River Ridge 100 Comment
  POM89806  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit. Comment
  UC1103309  Alopecurus aequalis Joseph P. Tracy 1923-6-27 6381 Humboldt near the S. Fork Trinity R. Valley (shores of Lack Pond); Northern Coast Ranges, , Lack Pond 182 Comment
  CAS-BOT-BC13705  Ambrosia chamissonis H. E. Parks 1941-8-1 24181 Humboldt Big Lagoon Comment
  HSC5663  Ambrosia chamissonis D. E. Anderson 1961-9-2 1771 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  UC582626  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15687 Humboldt sand dunes, near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  HSC70328  Amelanchier alnifolia M. A. Baker 1980-6-8 1883 Humboldt Near Buck Flat. 1554 Comment
  HSC56327  Amelanchier pallida Overton, Butler 1979-8-2 12680 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  OBI35862  Amelanchier utahensis David J. Keil 1983-7-2 17332 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  UC154229  Amelanchier utahensis Joseph P. Tracy 1908-6 2768 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SBBG115197  Ammophila arenaria D. Leaberry 1992-6-20 Humboldt Clam Beach County Park, ca. 1 mi N of Arcata Airport Comment
  UC525581  Amsinckia menziesii var. menziesii Joseph P. Tracy 1933-5-14 12175 Humboldt Trinity River Vallley at Willow Creek Trinity River Vallley; Northern Coast Ranges 152 Comment
  HSC96542  Anagallis arvensis Gordon Leppig 1997-8-13 646 Humboldt Big Lagoon County Park 3 Comment
  CAS-BOT-BC45135  Anaphalis margaritacea Doris K. Kildale 1925-7-2 899 Humboldt Table Bluff Comment
  CAS-BOT-BC391785  Anemone deltoidea Mrs. H. C. Cantelow 1936-5-17 s.n. Humboldt 4 1/2 miles east of Orick Comment
  HSC37344  Anemone deltoidea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 476 Humboldt Along Lost Man Creek. 38 Comment
  HSC55331  Anemone deltoidea Griswold, Butler 1979-7-12 7175 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  JEPS79808  Anemone deltoidea Joseph P. Tracy Jul 16 1930-Jul 19 1930 8964 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC8883  Anemone deltoidea J. Burtt Davy 1899-6-13 5499 Humboldt Camp Grant; North Coast Ranges Comment
  UC642308  Angelica hendersonii Joseph P. Tracy 1938-8-28 16134 Humboldt Trinidad 3 Comment
  JEPS143  Angelica hendersonii W. L. Jepson 1936-8-18 17945 Humboldt 1/2 mi s of Singley Creek Comment
  UC1103414  Angelica lucida Joseph P. Tracy 1914-10-4 4632 Humboldt near Hookton (at s end of Humboldt Bay); Northern Coast Region, Humboldt Bay 0 Comment
  UC642243  Angelica tomentosa Joseph P. Tracy 1938-9-5 16145 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  CAS-BOT-BC271495  Anisocarpus madioides Harley P. Chandler 1901-6-1 1313 Humboldt Hupa Indian Reservation 152 Comment
  HSC32121  Anisocarpus madioides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5696 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC39181  Anisocarpus madioides D. E. Anderson, J. P. Smith 1971-6-28 - 1220 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC49963  Anisocarpus madioides Maralyn O'Meara 1974-7-11 541 Humboldt Kneeland; Barry Ridge Comment
  UC494177  Anisocarpus madioides Parks and Tracy 1930-5-25 864 Humboldt Laribee Valley Comment
  HSC5993  Anisocarpus madioides Francis Winter 1960-4-24 Humboldt 1 mi. W of Hoopa on Bair Rd. 305 Comment
  RSA167202  Antennaria suffrutescens Joseph P. Tracy 1947-7-9 17864 Humboldt Horse Mountain 1432 Comment
  UC1222874  Antennaria suffrutescens Joseph P. Tracy 1947-7-9 17864 Humboldt Horse Mountain 1432 Comment
  UC582650  Antennaria suffrutescens Joseph P. Tracy 1933-7-11 12673 Humboldt Horse Mountain 1432 Comment
  HSC40404  Anthoxanthum occidentale Linda M. Barker 1976-4-13 1387 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC137738  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad. Comment
  HSC38313  Anthoxanthum odoratum Peter Sorensen 1976-6-2 Humboldt North Spit Comment
  HSC8931  Anthoxanthum odoratum J. W. Johnson 1962-4-18 1267 Humboldt Along the lane below the W.M. Lanphere Home, Samoa Peninsula Comment
  JEPS71148  Anthoxanthum odoratum A. L. Hormay 1932-5-11 48 Humboldt Arcata Comment
  UC1198741  Aphanes occidentalis Joseph P. Tracy 1919-4-27 5129 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  HSC57660  Apocynum androsaemifolium G. L. Clifton, Griswold 1979-7-25 10835 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC58041  Apocynum androsaemifolium Gilbert Muth 1979-8-1 11887 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC176867  Apocynum cannabinum Joseph P. Tracy 1912-7-26 3838 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  HSC58087  Arabis divaricarpa var. interposita G. L. Clifton, Griswold 1979-8-1 11996 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC32848  Arabis glabra Thomas W. Nelson, James Nelson 1973-5-28 944 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC72985  Aralia californica M. A. Baker 1980-5-17 1191 Humboldt Near Le Perron Peak 792 Comment
  UC162626  Aralia californica Joseph P. Tracy 1911-7-5 3320 Humboldt near its mouth Willow Creek (tributary of Trinity R.); Northern Coast Ranges 304 Comment
  CAS-BOT-BC128694  Arbutus menziesii Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  UCR32149  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt North Coast Range, Bull Creek Flats Road, c. 8 mi west of junction US 101 Comment
  POM367168  Arbutus menziesii N. R. Zabriskie, Walter Zabriskie, J. Zabriskie 1968-8-22 151 Humboldt East of Honeydew on road from Humboldt State Park to Cape Mendocino. 915 Comment
  UC585941  Arctostaphylos Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC1225904  Arctostaphylos X candidissima Joseph P. Tracy 1947-7-9 17839 Humboldt Horse Mountain 1432 Comment
  SDSU1488  Arctostaphylos canescens D. F. Howe 1965-8-12 4129 Humboldt 7.9 miles south of Honeydew. 610 Comment
  UCD162896  Arctostaphylos canescens D. O. Burge 2015-6-5 1742 Humboldt Horse Mountain. 1460 Comment
  CAS-BOT-BC24094  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast range Horse Mt. 1524 Comment
  CAS-BOT-BC23775  Arctostaphylos columbiana Joseph P. Tracy 1936-8-2 15074 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23818  Arctostaphylos columbiana Joseph P. Tracy 1940-7-14 16688 Humboldt Wilder Ridge (near Kings Peak) 762 Comment
  CAS-BOT-BC23821  Arctostaphylos columbiana Carl B. Wolf 1941-3-3 9995 Humboldt N. Coast Range, 4 mi. N. of Ettersburg on road to Honeydew. 304 Comment
  HSC7722  Arctostaphylos columbiana H. E. Parks Feb 1934 4774 Humboldt Spruce Cove, Trinidad Comment
  LA42321  Arctostaphylos columbiana H. E. Parks; 1931-3-25 917 Humboldt near Patrick's Point Comment
  RSA622677  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27669 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
  UC1198653  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13133 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC154196  Arctostaphylos columbiana Joseph Burtt Davy and Walter C. Blasdale 1899-5 Humboldt Fruitland Comment
  UC585915  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC585920  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA1899  Arctostaphylos columbiana var. columbiana C. B. Wolf 1930-10-29 1784 Humboldt Old Coast Rd. 7 mi S of Honeydew Post Office. 305 Comment
  UCD50897  Arctostaphylos glandulosa Joseph P. Tracy 1940-7-14 16688 Humboldt Wilder Ridge (near Kings Peak). 762 Comment
  JEPS38942  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge Comment
  RSA633020  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27814 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  CAS-BOT-BC24373  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1925-8-13 1382 Humboldt Willoe Creek Flat. 152 Comment
  CAS-BOT-BC38831  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-6-27 2198 Humboldt Sweasey Lake - McClellan Mountain 792 Comment
  HSC72694  Arctostaphylos nevadensis Gail Newton 1980-6-24 576 Humboldt Near Ladder Rock 1570 Comment
  UC585956  Arctostaphylos nevadensis Joseph P. Tracy 1935-7-30 14380 Humboldt Salmon Summit 2103 Comment
  CAS-BOT-BC46628  Arctostaphylos patula L. B. Kildale 1930-8-3 10356 Humboldt Chaparral Mt. at Bug Creek. 914 Comment
  HSC100470  Arctostaphylos tomentosa Carl C. Marshall Apr 1887 382 Humboldt Hoopa Valley. Comment
  CAS-BOT-BC43981  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17502 Humboldt Eureka 45 Comment
  CAS-BOT-BC43986  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17498 Humboldt Eureka 45 Comment
  HSC73157  Arctostaphylos viscida M. A. Baker 1980-5-18 1296 Humboldt Near Black Mtn. 1006 Comment
  UC668127  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 b Humboldt Head of Brett Hole Trinity Summitt, Brett Hole 1828 Comment
  SEINET200929  Aristida oligantha J. P. Tracy 1919-9-15 5222 Humboldt Northern Coast Ranges; valley of Trinity River near mouth of Willoe Creek 152 Comment
  UC1103321  Aristida oligantha Joseph P. Tracy 1921-9-4 5951 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA249359  Armeria maritima subsp. californica J. D. Ackerman 1974-5-25 267 Humboldt 0.25 mi S of Lufenholtz County Beach off Scenic Dr between Trinidad and Moonstone Beach. Comment
  UCR122371  Armeria maritima subsp. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 7017 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  CAS-BOT-BC82101  Arnica cernua Joseph P. Tracy 1926-5-2 s.n. Humboldt Willow Creek Canyon Comment
  SEINET2029493 Image available Arnica cernua Joseph P. Tracy 1938-6-13 15902 Humboldt Horse Mountain 1433 Comment
  BLMAR524  Arnica discoidea Jennifer Wheeler 2009-6-23 524 Humboldt King range, On King Peak road Comment
  HSC40999  Arnica discoidea J. O. Sawyer 1975-10-17 2709 Humboldt Along Big Hill Rd. 915 Comment
  HSC8988  Arrhenatherum elatius J. A. Waller 1965-5-2 29 Humboldt Along Hwy. 96 near Willow Creek Comment
  UC582424  Artemisia dracunculus Joseph P. Tracy 1932-8-27 10751 Humboldt on: Blue Slide Van Duzen River 91 Comment
  CAS-BOT-BC93858  Artemisia dracunculus Hubert Jenkins 1943-8-1 s.n. Humboldt Near edge of Eel River in sand. Richardson Grove Comment
  CAS-BOT-BC90869  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt Sand hills of ocean beach at Samoa, opp. Eureka Comment
  POM264517  Artemisia pycnocephala H. E. Parks 1941-08 24186 Humboldt Little River State Park Comment
  RSA296735  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC102182  Asarum caudatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1096 Humboldt Patterson Meadows 1566 Comment
  HSC102553  Asarum caudatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1541 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC98560  Asarum caudatum Cara Witte 2008-6-13 727 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  POM117708  Asarum caudatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  RSA122080  Asarum caudatum H. L. Person 1932-8-22 s.n. Humboldt Arcata Comment
  RSA183561  Asarum caudatum R. D. Zortman 1963-4-14 18 Humboldt 5 miles NE of Arcata, south of the Mad River, off Warren Ck. Rd. 91 Comment
  HSC3266  Asarum caudatum D. E. Anderson 1962-3-8 1929 Humboldt E of HSC campus Comment
  SEINET8690239 Image available Asarum caudatum C. C. Harris, S. K. Harris 1936-1 652 Humboldt On Yager Rd from Carlotta 457 Comment
  HSC1051  Aspidotis densa D. E. Anderson 1961-9-3 1777 Humboldt Comment
  RSA18141  Aster chilensis C. B. Wolf 1927-8-22 808 Humboldt 1 mile south of Orick. Comment
  CAS-BOT-BC27578  Astragalus agnicidus Henry Tosten 1931-6-7 s.n. Humboldt 4 miles S of Miranda Comment
  CAS-BOT-BC27580  Astragalus agnicidus Henry Tosten 1931-6-7 s.n. Humboldt near Bear Buttes, 4 mi. S of Miranda Comment
  NY5297  Astragalus agnicidus H. Tosten 1931-6-7 s.n. Humboldt Near Bear Buttes, 4 mi S of Miranda. Local on Tosten and Pierce Ranch. Comment
  SEINET3070824 Image available Astragalus agnicidus H. Tosten 1931-6-7 s.n. Humboldt Near Bear Buttes, 4 mi S of Miranda. Local on Tosten and Pierce Ranch. Comment
  UC1197707  Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. 762 Comment
  CAS-BOT-BC193131  Astragalus rattanii var. rattanii Volney Rattan s.n. Humboldt Bug Creek Comment
  CAS-BOT-BC193134  Astragalus rattanii var. rattanii Volney Rattan 1883-6-13 s.n. Humboldt Bug Creek, a tributary of Mad Riv. Comment
  UC1222420  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt at Lake Prairie , at Lake Prairie (Bald Mountain) 1066 Comment
  UC1755322  Astragalus umbraticus Dean W. Taylor 2006-8-2 19569 Humboldt Showers Mountain; on north flank of the mountain, south rim of the Mad River canyon 1051 Comment
  UCR37845  Astragalus umbraticus D. E. Anderson 1965-5-15 3694 Humboldt About 7 mi north of Hoopa on Bloody Camp Prairie Road. Comment
  RSA46703  Athyrium filix-femina subsp. cyclosorum Doris K. Kildale 1928-12-29 6762 Humboldt Stevens Grove Comment
  SD90176  Athyrium filix-femina var. cyclosorum Benjamin C. Stone 1952-6-25 128 Humboldt 15 miles south of Klamath on Highway 101 14 Comment
  SDSU1603  Athyrium filix-femina var. cyclosorum D. R. Harvey 1938-8-13 2252 Humboldt Redwood Park. Comment
  UC922659  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  UC1239784  Azolla filiculoides Joseph P. Tracy 1911-6-25 3245 Humboldt pool back of Holmes Mill Bucksport; Northern Coast Region 0 Comment
  CAS-BOT-BC98768  Baccharis douglasii L. R. Abrams 1916-7-18 6111 Humboldt Arcata to Trinidad, 18 mi. along the coast Comment
  CAS-BOT-BC98771  Baccharis douglasii Carl B. Wolf 1927-8-30 1239 Humboldt Minor's Ranch, Union Matole, 6 mi. so. of Petrolia Comment
  UC204753  Baccharis glutinosa Joseph P. Tracy 1918-9-29 5102 Humboldt 4 mi above the mouth South Fork of Eel River 60 Comment
  CAS-BOT-BC98029  Baccharis pilularis Elmer I. Applegate 1922-9-19 3451 Humboldt Along the coast below Eureka Comment
  UC673091  Baccharis pilularis Joseph P. Tracy 1940-10-17 16765 Humboldt Camp Grant, along Eel River, 2 to 5 mi e of South Fork 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
  HSC48748  Barbarea orthoceras Brad Klipfel 1973-6-10 91 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC64185  Barbarea orthoceras J. O. Sawyer, M. A. Ericksen 1979-6-23 3390 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC100717  Barbarea vulgaris Carl C. Marshall Jun 1886 173 Humboldt Fields, Arcata. Comment
  JEPS3739  Bensoniella oregona Rimo Bacigalupi and L. Constance with R. Moran, R. L. Rodriguez and Sherwin Carlquist 1951-6-14 3410 Humboldt on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) (edge of forest at High Prairie); btw Mad River and Redwood Creek (Bald Mountain ridge) 1066 Comment
  UC1198384  Berberis aquifolium var. aquifolium Joseph P. Tracy 1948-9-5 18186 Humboldt on ridge 2 mi e Grove's Prairie (3 mi s of Grizzly Camp) 1524 Comment
  SDSU13768  Berberis nervosa D. F. Howe 1963-5-26 3555 Humboldt 3.2 miles east of Orick on Bald Hill Road. 457 Comment
  UC146103  Berberis nervosa J. P. Tracy 1904-4-17 2016 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC75809  Berberis pinnata L. B. Kildale 1930-7-7 10260 Humboldt Chaparral Mountain at Bug Creek. 914 Comment
  LA212250  Berberis piperiana A Arpaia; June 1966 s.n. Humboldt Willow Creek at Trinity River. 914 Comment
  HSC55017  Bistorta bistortoides Overton, Butler 1979-7-31 11415 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC66269  Blechnum spicant W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  UCSB8245  Blechnum spicant Robbins, G. 1936-8-1 Humboldt Near Strong's Station. Comment
  POM256441  Boisduvalia densiflora var. densiflora Joseph P. Tracy 1937-7-19 15463 Humboldt Larrabee Valley 732 Comment
  RSA53786  Boisduvalia densiflora var. densiflora H. M. Pollard 1946-8-10 s.n. Humboldt Roadside south of Klamath River and east of Perch Creek, Orleans region. Comment
  CAS-BOT-BC31367  Bolboschoenus maritimus Carl B. Wolf 1927-8-28 1180 Humboldt Salt Marsh bordering Eureka Bay, on road to Arcata. Comment
  HSC3558  Borago officinalis William J. Ferlatte 1963-4-21 15 Humboldt Near 11th and A St., Arcata Comment
  SEINET200607 Image available Botrychium multifidum Joseph P. Tracy 1906-11-4 2551 Humboldt Eureka Northern Coast of California 0 Comment
  HSC96373  Botrychium multifidum Gordon Leppig 1999-10-3 1256 Humboldt Big Lagoon on NE corner of fen 3 Comment
  HSC76195  Boykinia major Overton, Butler 1979-8-2 12503 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC97981  Boykinia major Cara Witte 2007-7-11 487 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  CAS-BOT-BC420271  Boykinia occidentalis Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  HSC99840  Boykinia occidentalis C. B. Wolf 1927-8-30 1254 Humboldt 3 mi. S of Thorn along old coast road Comment
  CAS-BOT-BC420274  Boykinia occidentalis Milo S. Baker 1923-9-19 84 Humboldt Canon near Carlotta Comment
  UCSB2543  Boykinia occidentalis Phillips, Priscilla 1958-6-10 Humboldt Bishop Pine Lodge, 2 mi. n. of Trinidad Comment
  HSC6582  Brassica rapa D. E. Anderson 1962-2-10 1922 Humboldt 1.5 mi. S of Trinidad Comment
  HSC33759  Briza minor Margaret Weatherwax 1975-5-24 159 Humboldt Dunes off Samoa Blvd. across from boat landing Comment
  HSC84929  Briza minor R. N. Raynor 1935-6-7 Humboldt Ft. Seward Comment
  HSC99871  Briza minor Glenn W. K. Shelton 2010-7-7 9 Humboldt 6 mi. S of Kneeland Airport along Kneeland Rd. 658 Comment
  UCD57437  Briza minor A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3455 Humboldt 2 miles north of Orleans. Comment
  CAS-BOT-BC145571  Briza minor Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  UC1197749  Brodiaea elegans subsp. elegans Joseph P. Tracy 1946-7-13 17615 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  UC1197735  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1936-6-9 14893 Humboldt s of point of Cape; Cape Mendocino 3 Comment
  RSA167289  Bromus carinatus Joseph P. Tracy 1951-6-26 19570 Humboldt Twin Lakes vicinity, Snow Camp and Twin Lakes trip. Comment
  UC1145143  Bromus commutatus Joseph P. Tracy 1917-6-24 4824 Humboldt along Eel River from South Fork to Scotia, Holmes Flat Holmes Flat; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  UC207700  Bromus commutatus Joseph P. Tracy 1917-6-24 4824 Humboldt along Eel River from South Fork to Scotia, Holmes Flat Eel River; Northern Coast Ranges, , Holmes Flat 60 Comment
  HSC9278  Bromus diandrus W. F. Nickel 1965-5-13 Humboldt College Elementary School, on HSU campus. Comment
  BLMAR41  Bromus diandrus Brad Barr 1982-6-21 41 Humboldt King range, hidden valley enclosure Comment
  HSC104041  Bromus hordeaceus C. Reynolds 2015-4-28 39 Humboldt Along trail through Arcata Marsh, near Interpretive Center 5 Comment
  UC1103363  Bromus hordeaceus Joseph P. Tracy 1933-6-11 12556 Humboldt 4 mi s of Dyerville (South Fork Eel River); North Coast Ranges, South Fork Eel River 60 Comment
  HSC40577  Bromus orcuttianus Thomas W. Nelson, James Nelson 1976-7-28 3047 Humboldt W of Alder Springs along 2S08 1555 Comment
  UC60194  Bromus secalinus Rob. Smalley 1901-8-20 Humboldt Blocksburg Comment
  CAS-BOT-BC185522  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  CAS-BOT-BC185523  Bromus vulgaris W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River. Comment
  SEINET181181 Image available Bromus vulgaris Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15067 Humboldt Bolling Grove State Park. Comment
  SEINET200938 Image available Bromus vulgaris Joseph P. Tracy 1926-5-2 7427 Humboldt Trinity River Valley, near the South Fork. Comment
  UC1103267  Bromus vulgaris J. P. Tracy 1901-6-2 1116 Humboldt immediate vicinity of Eureka 0 Comment
  UCR51752  Buddleja davidii H. M. Pollard 1947-8-9 s.n. Humboldt North Coast Range, Klamath River near Harley Place, Orleans region Comment
Read comments
Apr 27 2007
  CAS-BOT-BC273303  Cacaliopsis nardosmia Doris K. Kildale 1926-4-18 1776 Humboldt McLellan [McClellan] Mountain 822 Comment
  RSA484550  Cakile edentula E. A. Purer 1932-7-27 4140 Humboldt Near Samoa. Comment
  HSC6608  Cakile maritima D. E. Anderson 1961-9-2 1770 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  UC1146639  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1728 Humboldt Mattole River Comment
  RSA10021  Calamagrostis koelerioides Joseph P. Tracy 1933-8-30 13008 Humboldt Horse Mountain. In open Forest of Jeferey Pine 1372 Comment
  HSC96469  Calamagrostis nutkaensis Gordon Leppig 1997-6-19 463 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS72919  Calamagrostis nutkaensis Lincoln Constance 1934-6-25 923 Humboldt Englewood Bull Creek Region, South Fork Eel River (4 mi n of Dyerville and of n boundary of Humboldt Redwood Park, on Redwood Hwy) Comment
  UC1145049  Calamagrostis rubescens Joseph P. Tracy 1938-7-17 16082 Humboldt Garberville; river bank 152 Comment
  HSC17632  Calandrinia ciliata J. W. Johnson 1962-4-10 1240 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC100897  Calandrinia pygmaea Carl C. Marshall Jun 1886 318 Humboldt Trinity Summit. Comment
  UC1103695  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1939-7-9 16346 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC80384  Calocedrus decurrens G. A. Coleman 1901-7-24 s.n. Humboldt Head of Supply Creek, Hoopa Indian Reservation Comment
  HSC15406  Calochortus tolmiei J. P. Tracy, H. E. Parks 1934-6-27 7 Humboldt Grouse Mtn. 1372 Comment
  RSA183584  Calochortus tolmiei D. E. Anderson 1965-5-15 3716 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  UC180217  Calochortus vestae Joseph P. Tracy Jun 21 1914-Jul 18 1914 4513 Humboldt Eureka Northern Coast Ranges Comment
  UC667122  Calochortus vestae Joseph P. Tracy 1930-6-15 8760 Humboldt Dobbyn Creek 152 Comment
  UC502923  Caltha biflora Joseph P. Tracy 1932-7-17 10671 Humboldt Ridges east of Corral Prairie, Trinity Summit; Klamath Mountains. 1828 Comment
  UC1222959  Calycadenia truncata Joseph P. Tracy 1941-9-1 17009 Humboldt near Don Juan Point (along Trinity River); Trinity River 335 Comment
  BLMAR74  Calypso bulbosa Jennifer Anthony-Wheeler 1994-6-2 74 Humboldt IAQUA 1036 Comment
  HSC12225  Calypso bulbosa G. L. Stebbins 1970-4-5 60 Humboldt Along county road to Snow Camp, 2.7mi W of Maple Creek road junction Comment
  HSC16571  Calypso bulbosa Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC16574  Calypso bulbosa R.. A. Rasp 1964-5-20 42 Humboldt 4 mi. W of Arcata off Lanphere Rd. on Lanphere ranch Comment
  UC1196476  Calypso bulbosa Joseph P. Tracy 1949-6-6 18303 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC45315  Calypso bulbosa R. A. Vanbianchi 1972-4-14 Humboldt Tiptop Ridge, directly E of the town of Fieldbrook 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
  UC198589  Calyptridium monospermum Joseph P. Tracy 1917-9-2 4848 Humboldt Grouse Mountain at the summit Grouse Mountain; Northern Coast Ranges, Grouse Mountain 1524 Comment
  UC162767  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1911-7-6 3342 Humboldt mountain slopes along road between Three Creeks and Mouth Willow Creek; Northern Coast Ranges, btwn Three Creeks and Willow Creek 762 Comment
  RSA34296  Calystegia soldanella J. Wendell Howe 1933-5-23 s.n. Humboldt Samoa Comment
  UC1197877  Calystegia soldanella Joseph P. Tracy 1915-6-6 4650 Humboldt sandy beach near mouth Elk River (Eureka); Northern Coast Region, nr mouth Elk River, at Eureka 0 Comment
  SEINET3991741  Camassia leichtlinii Unknown 1947-6-26 Humboldt South Fork Mtn. Comment
  RSA12420  Camassia leichtlinii subsp. suksdorfii Carl B. Wolf 1934-7-2 5873 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  HSC16540  Camissonia cheiranthifolia Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  NY679547  Camissonia cheiranthifolia subsp. cheiranthifolia A. A. Heller 1924-7-24 13881 Humboldt At Humboldt County camp, 7 miles S of Trinidad. Comment
  CAS-BOT-BC160242  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  CAS-BOT-BC160243  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Ira L. Wiggins 1930-7-7 4670 Humboldt Near Samoa Comment
  CHSC10102  Camissoniopsis cheiranthifolia subsp. cheiranthifolia J. W. Johnson 1961-8-17 1044 Humboldt Arcata. Sand dune fields, Lanphere Farm. Comment
  RSA43830  Campanula prenanthoides H. M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  SEINET10873256  Campanula prenanthoides Willis L. Jepson Jepson s.n. Humboldt Big Heorse Mountain Comment
  SEINET10463588  Campanula scouleri Rattan 1883-6-29 RATTAN s.n. Humboldt HILLS IN FORESTS NEAR REDWOOD CREEK Comment
  SEINET10463685  Campanula scouleri Chesnut 1888-7-19 CHESNUT s.n. Humboldt PILOT RIDGE Comment
  HSC6630  Capsella bursa-pastoris J. L. Baker 1965-3-26 17 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  UC492256  Cardamine angulata Joseph P. Tracy 1928-4-29 8425 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC37427  Cardamine californica Doris Kildale 1931-5-10 10559 Humboldt Snow Camp. Comment
  HSC34634  Cardamine californica R. M. Sullivan 1975-4-8 4 Humboldt 1 mi. S of Patrick's Point State Park on Hwy. 101, along foot path leading to beach 24 Comment
  UCD114185  Cardamine californica Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  UCD114499  Cardamine californica Parks; Tracy 1931-3-26 0916 Humboldt lower Van Duzen River. 60 Comment
  HSC99082  Cardamine californica var. californica C. Witte 2007-5-10 21 Humboldt Board Camp. 1/2 miles from National Forest 1, on Forest Service Road 4N38. 1395 Comment
  POM311254  Cardamine californica var. integrifolia Keith C. Hughes 1961-2-3 326 Humboldt Richardson Grove State Park; Mt. Range: Coast Ranges; Drainage Area: Pacific Slope. 137 Comment
  UCD114541  Cardamine oligosperma Joseph M. DiTomaso 1976-3-28 362 Humboldt 3 miles east of Willow Creek on Highway 299. Comment
  CAS-BOT-BC384768  Cardionema ramosissimum Ira L. Wiggins 1930-7-11 4687 a Humboldt Sand dunes near Samoa Comment
  POM232317  Cardionema ramosissimum I. L. Wiggins 1930-7-11 4687 -a Humboldt Near Samoa 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
  CAS-BOT-BC18001  Carex aquatilis var. dives Joseph Prince Tracy 1934-7-30 13504 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  CHSC43008  Carex aquatilis var. dives L. P. Janeway 1987-7-30 2533 Humboldt At Dry Lagoon. 3 Comment
  JEPS109914  Carex arcta Dean W. Taylor 2006-8-3 19573 Humboldt Lake Prairie; marshy area between the dam and the county road 1057 Comment
  CAS-BOT-BC18074  Carex athrostachya Joseph Prince Tracy 1934-7-18 13426 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  UC562628  Carex athrostachya Joseph P. Tracy 1904-7-18 13426 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC70465  Carex bolanderi Gail Newton 1980-7-20 1629 Humboldt Near Bell Swamps 1426 Comment
  UC562429  Carex bolanderi Joseph P. Tracy 1936-5-29 14823 Humboldt French Camp Ridge 1066 Comment
  HSC43238  Carex bolanderi R. Sutherland 1977-4-5 5477 Humboldt 386 Comment
  UC194820  Carex bolanderi Joseph P. Tracy 1913-7-20 4371 Humboldt Three Creeks 1066 Comment
  HSC23092  Carex brainerdii D. H. Norris 1971-5-17 19078 Humboldt On trail to King Peak, 1 mi. N of road terminus of Horse Mtn. to King Peak Rd., N of Shelter Cove 1067 Comment
  UC585642  Carex brainerdii Joseph P. Tracy 1937-7-24 15525 Humboldt head of Devil's Hole Trinity Summit, Devil's Hole 1767 Comment
  SEINET3899382  Carex buxbaumii Thomas Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt Along road 2S08 near Pine Mountain.; 0 1463 Comment
  HSC98942  Carex concinnoides Cara Witte 2007-5-26 660 Humboldt National Forest 1. 1/2 mile south of intersection with Forest Service Roads 6N38 and 6N36. 1458 Comment
  CAS-BOT-BC34973  Carex densa Joseph Prince Tracy 1936-6-3 14847 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CDA33060  Carex echinata subsp. phyllomanica Gordon Leppig 1997-6-19 445 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  CHSC85576  Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt High North Coast Ranges. On northeast side of Titlow Hill Road, across form a small pond, on the map but un-named, 1.1 km south of Cold Spring. 1426 Comment
  CAS-BOT-BC20841  Carex geyeri Joseph Prince Tracy 1933-7-11 12662 Humboldt Horse Mountain. 1432 Comment
  HSC96578  Carex gynodynama Gordon Leppig, Todd Treadwell 2005-6-8 2249 Humboldt Blue Slide Creek watershed, Pacific Lumber Co. land. 245 Comment
  UC2020226  Carex gynodynama Joseph P. Tracy 1906-6-24 2508 Humboldt Northern Coast Region, south slope of Humboldt Hill. Comment
  SEINET8068029 Image available Carex harfordii A. L. Hipp 1999-1 438 Humboldt Phillipsville-Edge of 101 (Redwood Hwy), big E-turn just S. of the Miranda exit. Comment
  UC249765  Carex hendersonii Joseph P. Tracy 1923-6-20 6331 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UCR66610  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek at the South Fork of the Eel River 50 Comment
  JEPS79846  Carex hoodii Joseph P. Tracy 1932-7-11 10410 Humboldt Trinity Summit, Corral Prairie Trinity Summit; , Corral Prairie 1584 Comment
  CHSC90274  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8598 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  UC249732  Carex lenticularis var. limnophila Joseph P. Tracy 1924-7-13 6719 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC102228  Carex luzulina M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1149 Humboldt Patterson Meadows 1555 Comment
  UC562657  Carex mariposana Joseph P. Tracy 1935-7-23 14141 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC45431  Carex microptera Thomas W. Nelson, Jane P. Nelson 1978-7-2 4394 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  HSC73962  Carex multicaulis Gail Newton 1980-6-7 126 Humboldt Near Brush Mtn. 1128 Comment
  HSC44076  Carex multicostata Thomas W. Nelson, James Nelson 1976-7-26 3034 Humboldt W of Mount Lassic (Signal Peak) 1707 Comment
  CAS-BOT-BC119548  Carex nudata A. A. Heller 1923-7-10 13797 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  CHSC40167  Carex nudata L. P. Janeway 1984-4-20 732 Humboldt Levee on east side of Eel River near Fortuna at Sandy Prairie Road. 12 Comment
  CHSC69505  Carex obnupta Vernon H. Oswald; Lowell Ahart 1997-9-4 8856 Humboldt Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  HSC38424  Carex obnupta Lon Hall 1975-6-20 407 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  SEINET10883539  Carex ormantha Joseph P. Tracy 1932-7-14 Tracy 10567 Humboldt Corral Prairie in wet meadow. 1585 Comment
  UC194815  Carex ovalis Joseph P. Tracy 1914-7-4 4547 Humboldt High Prairie Northern Coast Ranges, Bald Mountain; High Prairie on Bald Mt., Humboldt Co. 1066 Comment
  JEPS79851  Carex pachycarpa Joseph P. Tracy 1932-7-11 10411 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC119231  Carex pachystachya Joseph Prince Tracy 1927-7-4 8233 Humboldt Iaqua 609 Comment
  HSC102163  Carex pachystachya M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1073 Humboldt Patterson Meadows 1555 Comment
  POM126147  Carex pachystachya Joseph P. Tracy 1923-6-17 6278 Humboldt Big Lagoon 6 Comment
  SEINET8989726 Image available Carex pachystachya A. L. Hipp 1999-1 443 Humboldt Whitlow - 10.2 mi from intersection of 101 and Elk Creek Road on Dyerville Loop Road. Comment
  CAS-BOT-BC119234  Carex pachystachya Joseph Prince Tracy 1930-7-10 8868 Humboldt Brannan Mountain 1219 Comment
  CAS-BOT-BC119168  Carex pansa Charles Vancouver Piper 1921-5-22 s.n. Humboldt Eureka. Comment
  UC70628  Carex pansa Joseph Burtt Davy and Walter C. Blasdale 1899-5 6218 Humboldt Eureka Comment
  CAS-BOT-BC28310  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-17 10675 Humboldt Trinity Summit, Wet meadow heading into Devil's Hole. 1828 Comment
  POM160299  Carex serratodens Joseph P. Tracy 1926-6-27 7692 Humboldt Horse Mountain. 1220 Comment
  UC302095  Carex serratodens Joseph P. Tracy 1913-6-13 4107 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS80015  Carex subbracteata Joseph P. Tracy 1925-7-5 7165 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, Bald Mountain, High Prairie 1066 Comment
  SEINET200796  Carex subbracteata J. P. Tracy 1928-6-24 8465 Humboldt Valley of S Yager Creek 0 Comment
  SEINET7486520 Image available Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt bove Chezen Road, at junction with Route 299, Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits 150 Comment
  CAS-BOT-BC116942  Carex subbracteata Joseph Prince Tracy 1935-7-27 14296 Humboldt Trinity Summit, open places at McKay Prairie. 1584 Comment
  HSC44031  Carex subfusca Thomas W. Nelson, Jane P. Nelson 1977-9-3 3728 Humboldt Along creek draining N end of pond above Alder Springs 1137 Comment
  NY11384  Carex tracyi J. P. Tracy 1914-7-4 4547 Humboldt "High Prairie" on Bald Mountain 1066.8 Comment
  UC562337  Carex tumulicola Joseph P. Tracy 1930-7-10 8859 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  UC1115805  Carex tumulicola Joseph P. Tracy 1939-4-29 16254 Humboldt Orleans 121 Comment
  SEINET11632747  Carex utriculata J. P. Tracy 1950-1 19264 Humboldt Box Camp, Trinity Summit 1524 Comment
  HSC26372  Carpobrotus chilensis T. O. Osborne 1970-9-16 37 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC59487  Carpobrotus edulis M. A. Ericksen 1979-4-29 238 Humboldt Across from the Samoa Cookhouse, Samoa, on Samoa Peninsula. Comment
  UCD129942  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie, on ridge 1 m. north above Bull Creek, ca. 2 miles west of Dyerville. Comment
  UC382597  Castilleja Joseph P. Tracy 1925-8-14 7230 Humboldt near Samoa (Samoa Sand Dunes, on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  HSC20579  Castilleja affinis subsp. litoralis D. J. Jager 1965-5-12 67 Humboldt 0.5 mi. N of Trinidad on bluff above the ocean 46 Comment
  JEPS25063  Castilleja affinis subsp. litoralis Joseph P. Tracy 1947-5-24 17692 B Humboldt Big Lagoon 152 Comment
  HSC90806  Castilleja ambigua subsp. humboldtiensis Gail Newton 1982-5-2 2508 Humboldt Elk River Wildlife Area, Eureka Comment
  POM92403  Castilleja ambigua subsp. humboldtiensis L. R. Abrams 1922-6-25 8249 Humboldt Humboldt Bay, east of Arcata. Comment
  JEPS3617  Castilleja applegatei subsp. martinii Clyde Ritchie Bell 1951-4-21 Humboldt about 4 mi n Orleans (along Calif Hwy 96 (Klamath River road)) Comment
  HSC102121  Castilleja arachnoidea M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1025 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS9969  Castilleja attenuata Lincoln Constance 1934-6-19 916 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  HSC38395  Castilleja attenuata J. D. Ackerman 1975-6-10 447 Humboldt 1 mi. N of Samoa Blvd. and Samoa Bridge Rd., S of Manila near RR tracks, along Humboldt Bay Comment
  CHSC95387  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Humboldt County. Manila Dunes ACEC. 3 Comment
  SEINET4095680  Castilleja exserta O. M. Clark 1932-1 5341 Humboldt North Eureka. Comment
  JEPS76826  Castilleja exserta subsp. latifolia L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4805 Humboldt beach of Manila Manila; Samoa Peninsula, beach at Manila Comment
  HSC32373  Castilleja exserta subsp. latifolia Linda M. Barker 1974-6-2 200 Humboldt Manila Dunes, Samoa Peninsula, W of Emerson Mill 0 Comment
  POM87960  Castilleja litoralis L. R. Abrams, R. C. Bacigalupi 1922-06 8290 Humboldt North of Big Lagoon. Comment
  HSC102069  Castilleja miniata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 971 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC56234  Castilleja miniata Overton 1979-8-1 12314 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  UC902244  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18342 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC1502123  Ceanothus R. Sutherland 1975-7-5 6 .5.7 75 Humboldt Garberville Quad. 243 Comment
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May 26 2014
  HSC40884  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2869 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  RSA25803  Ceanothus foliosus Carl B. Wolf 1941-7-29 11093 Humboldt Along the Redwood Hwy, 0.7 mile N of jct with Hwy 1 from Ft. Bragg 61 Comment
Read comments
Jun 7 2011
  UCD112128  Ceanothus foliosus R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  HSC101665  Ceanothus foliosus var. foliosus J. P. Smith, J. O. Sawyer 2011-4-23 13126 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  CAS-BOT-BC50047  Ceanothus incanus Doris K. Kildale 1928-5-6 6014 Humboldt Garberville, Eel River Valley - South Fork Comment
  SD230281  Ceanothus incanus Louis C. Wheeler 1959-8-1 7620 Humboldt Queens Peak Mine Comment
  UC98876  Ceanothus integerrimus Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  HSC97280  Ceanothus oliganthus var. sorediatus J. R. McFarland 1997-4-10 Humboldt 3.7 mi N on King Range Rd. from Shelter Cove Rd. near peak 602 Comment
  SBBG4535  Ceanothus parryi H. and M. Dearing 1933-5-15 979 Humboldt near Garberville Comment
  BLMAR200  Ceanothus thyrsiflorus Donald Hazlett 1994-6-7 200 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC52995  Ceanothus thyrsiflorus C. Hart Merriam 1920-8-29 s.n. Humboldt Lower Eel River between Dyerville and Pepperwood Comment
  HSC18328  Ceanothus thyrsiflorus J. F. Knezevich 1968-5-14 442 Humboldt 11 mi. S of Ferndale on rd. to Cape Mendocino 305 Comment
  UC1004333  Ceanothus thyrsiflorus W. L. Colwell 1954-11-20 21 Humboldt along Eel River 3 mi e South Fork (Quad. 29B4); along Eel River e of South Fork, Quad. 29B4 91 Comment
  CAS-BOT-BC52865  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road, 5 miles north and 2 miles east of Boynton Prairie 630 Comment
  UC275286  Ceanothus velutinus Joseph P. Tracy 1924-5-11 6674 Humboldt Bull Creek Northern Coast Ranges, Bull Creek 121 Comment
  UC668158  Ceanothus velutinus Joseph P. Tracy 1935-5-12 13798 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC582507  Centaurea X moncktonii Joseph P. Tracy 1933-8-22 12973 Humboldt at Eureka Eureka 60 Comment
  CDA7085  Centaurea calcitrapa T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 miles south of Redcrest. 0 Comment
  CAS-BOT-BC272107  Centaurea cyanus Doris K. Kildale 1925-6-27 758 Humboldt Yager Creek, near mouth Comment
  HSC61725  Centaurea solstitialis Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan 198 Comment
  JEPS46936  Centaurium muehlenbergii W. L. Jepson 1927-7-3 12361 Humboldt Meyers road sta South Fork Eel River Comment
  HSC100514  Cercis occidentalis Carl C. Marshall Apr 1887 384 Humboldt Hoopa Valley. Comment
  UC249526  Cercis occidentalis Joseph P. Tracy 1922-4-30 6003 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC478904  Cercis occidentalis Marcus E. Jones, A. M. 1931-7-16 28996 Humboldt e Arcata; Junction Comment
  UC673250  Cercis occidentalis Lincoln Constance and Reed C. Rollins 1942-5-12 2895 Humboldt bluffs at junction of Klamath River and Salmon River (1 mi s of Somes Bar); Klamath-Siskiyou Region 152 Comment
  UC492185  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1929-4-14 8538 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  HSC36776  Cercocarpus montanus var. glaber Brent Whitely 1975-7-10 154 Humboldt 198 Comment
  HSC95786  Chamaecyparis lawsoniana Will Ferrand 2002-4-27 32 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  HSC99051  Chamaecyparis lawsoniana Cara Witte 2008-6-27 772 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  UC198574  Chamaesyce serpyllifolia Joseph P. Tracy 1916-9-5 4769 Humboldt 4 mi above Eel River (South Fork); Northern Coast Ranges 60 Comment
  HSC102109  Cheilanthes gracillima M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1012 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC55227  Chimaphila umbellata G. L. Clifton, Griswold 1979-8-2 12427 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC72793  Chimaphila umbellata M. A. Baker 1980-6-16 1925 Humboldt Near Monks Camp. 1097 Comment
  UC1073189  Chlorogalum pomeridianum var. pomeridianum George B. Rossbach 1955-6-10 613 Humboldt route 101 two mi n Stephens Redwood Grove; south branch of Eel River Comment
  CDA7414  Chrysanthemum segetum M. R. Pryor 1948-7-19 Humboldt Henry Perrott Ranch, Loleta. 0 Comment
  HSC41353  Chrysolepis chrysophylla Brad Klipfel 1974-9-2 546 Humboldt Horse Mountain Comment
  HSC70637  Chrysolepis chrysophylla R. York 1980-5-18 597 Humboldt Near Black Mtn. 792 Comment
  HSC73034  Chrysolepis chrysophylla M. A. Baker 1980-6-7 1791 Humboldt Near Brush Mtn. 1128 Comment
  RSA46774  Chrysolepis chrysophylla Doris Kildale Gillespie 1937-8-26 15366 Humboldt Christmas Prairie. Comment
  UC1187352  Chrysolepis chrysophylla var. chrysophylla R. G. Skolmen 1960-10-27 11 Humboldt 3 mi ese Big Hill, Hoopa Valley Indian Reservation 1188 Comment
  CAS-BOT-BC30125  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1934-8-29 13641 Humboldt Northern Coast Ranges. South Fork Mountain, along summit near Blake lookout 1706 Comment
  UC667994  Chrysolepis sempervirens Joseph P. Tracy 1937-7-29 15585 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  CAS-BOT-BC279831  Cichorium intybus Doris K. Kildale 1926-7-22 2428 Humboldt Metropolitan Comment
  JEPS156  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt near Arcata (s of Salmon Creek, Mad River); Mad River Comment
  RSA183599  Cinna latifolia D. E. Anderson 1965-9-5 4085 Humboldt Along Mad river, ca. 3 miles south of Blue Lake Comment
  HSC97984  Circaea alpina subsp. pacifica Cara Witte 2007-7-11 507 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UC35383  Circaea alpina subsp. pacifica Harley P. Chandler June, 1901 1404 Humboldt North Coast Ranges, Klamath R. 365 Comment
  HSC57013  Cirsium arvense Overton, Butler 1979-7-24 57013 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  POM289622  Cirsium arvense Lyman Benson 1929-7-12 1789 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CDA1114  Cirsium brevistylum T. R. Haig, T. C. Fuller 1959-6-12 2792 Humboldt 8 mi. N/ Trinidad. 0 Comment
  SEINET5506147 Image available Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 mi E of Berry Summit Comment
  CAS-BOT-BC285532  Cirsium occidentale var. candidissimum Doris K. Kildale 1928-6-24 5274 Humboldt Horse Mountain 914 Comment
  CAS-BOT-BC288720  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  CDA1547  Cirsium remotifolium E. C. Whitney 1971-6-3 s.n. Humboldt Bear River Ridge County roadside, Johnson Corrals, NE of Capetown. Comment
  UC668206  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  RSA0070881  Cirsium remotifolium A. K. Kellogg, W. G. W. Harford 1868-1 558 Humboldt [Unspecified] Comment
  JEPS59312  Cirsium vulgare W. L. Jepson 1936-8-12 17890 Humboldt Philipsville South Fork Eel River, Philipsville Comment
  UCD130811  Cirsium vulgare Linda M. Barker 1976-8-24 1684 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SBBG4940  Clarkia amoena H. and M. Dearing 1939-6-24 3702 Humboldt near Dinsmore, E of Bridgeville Comment
  UCD104030  Clarkia amoena James P. Smith 1973-5-26 6827 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC23714  Clarkia amoena Tim Baroni 1971-7-25 50 Humboldt About 8 mi. E of Petrolia Comment
  UC144097  Clarkia amoena Joseph P. Tracy 1907-7-4 2584 Humboldt just n of mouth Little River; Northern Coast Ranges 320 Comment
  CAS-BOT-BC160950  Clarkia amoena subsp. amoena Doris K. Kildale 1929-6-24 5262 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC160962  Clarkia amoena subsp. amoena L. R. Abrams 1916-7-11 5979 Humboldt [Blocksberg] Blocksburg Comment
  CAS-BOT-BC160963  Clarkia amoena subsp. amoena Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Pepperwood Comment
  CAS-BOT-BC160969  Clarkia amoena subsp. amoena P. A. Munz 1936-8-10 14339 Humboldt Little Van Duzen River, 15 mi. east of Bridgeville Comment
  CAS-BOT-BC164593  Clarkia gracilis subsp. gracilis Harley P. Chandler 1901-6-1 1363 Humboldt Hupa Indian Reservation 152 Comment
  CAS-BOT-BC164592  Clarkia gracilis subsp. gracilis S. K. Harris; J. P. Tracy 1936-6-10 3261 Humboldt On hills west of the South Fork of the Trinity River near its mouth 640 Comment
  UC1196982  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1913-7-20 4384 Humboldt near Berry's; Northern Coast Ranges, Redwood Creek 304 Comment
  HSC73748  Clarkia rhomboidea M. A. Baker 1980-7-15 2948 Humboldt Near Whiting Ridge. 1341 Comment
  HSC98104  Clarkia rhomboidea Cara Witte 2007-6-20 309 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  JEPS43680  Clarkia rhomboidea Lincoln Constance 1934-6-15 880 Humboldt Summit Grasshopper Peak; South Fork Eel River, Bull Creek Region 975 Comment
  UCR198252  Clarkia rubicunda Dean Kelch 2007-7-25 07- 507 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  CHSC77466  Claytonia exigua subsp. exigua Vernon H. Oswald 2000-4-3 9912 Humboldt Near the junction of New Navy Base Rd. and the road to Fairhaven on the North Spit of Humboldt Bay. 9 Comment
  HSC39550  Claytonia exigua subsp. exigua Thomas W. Nelson 1976-6-14 2701 Humboldt S of Mt. Lassic, Signal Peak 1646 Comment
  HSC67213  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5442 Humboldt Along branch road off Swayback Ridge Rd., 1/2 mi. E of junction 1372 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-BC443902  Claytonia sibirica Doris Kildale 1931-5-10 10572 Humboldt Snow Camp Comment
  CHSC24940  Claytonia sibirica W. A. Vaccaro 1976-4-4 1 Humboldt Pop. ca. 300 yds. NE of intersection of Cedar St. and W. St., Cutten. 45 Comment
  UC412615  Claytonia sibirica Mrs. M. H. Manning Humboldt near Hupa Comment
  CAS-BOT-BC443903  Claytonia sibirica A. A. Heller 1937-6-10 16274 Humboldt At Bishop Pine Lodge, 3 miles north of Trinidad on U. S. Highway #101. Comment
  HSC34812  Claytonia sibirica David Peters 1975-4-9 4 Humboldt 0.1 mi. W of Plunkett Rd. on Jacoby Creek Rd. Comment
  SEINET11942405  Claytonia sibirica Unknown 1933-1 3407 Humboldt Redwood Forest, Van Duzen River 6 mi W of Bridgeville Comment
  HSC17718  Claytonia washingtoniana D. E. Anderson 1962-3-31 1971 Humboldt Coastal area of Prairie Creek State Park Comment
  CAS-BOT-BC92592  Clematis ligusticifolia J. Clausen 1932-9-19 697 Humboldt Dyerville, Eel River. Comment
  HSC104432  Clintonia andrewsiana Greg O'Connell 2013-5-21 Humboldt East of Holter Ridge, northeast of Bald Hills Rd. Comment
  SEINET12050373  Clintonia andrewsiana F. H. Utech 1988-1 88 -295 Humboldt 1.5 mi N of Orick on US 101 & 0.5 mi SE on Bald Hills Rd enroute to Schoolhouse Peak 400 Comment
  UC1541329  Clintonia andrewsiana H. E. and S. T. Parks May 1930 754 Humboldt up the Van Duzen River Van Duzen River Comment
  HSC100555  Clintonia uniflora Carl C. Marshall Jun 1886 316 Humboldt Trail E of Hoopa. Comment
  HSC57030  Clintonia uniflora Overton, Butler 1979-7-24 9654 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC3541  Clintonia uniflora Mrs. M. H. Manning 1901-1 Humboldt Trinity Summit Comment
  CAS-BOT-BC499962  Clintonia uniflora Doris K. Kildale 1926-6-9 2135 Humboldt Horse Mountain 1219 Comment
  CAS-BOT-BC499963  Clintonia uniflora Doris Kildale 1931-5-10 10688 Humboldt Snow Camp Comment
  UC30059  Clintonia uniflora Joseph Burtt Davy 1899-6-19 5656 Humboldt Hoopa Mountain Comment
  SBBG27286  Collinsia grandiflora H. E. Parks, J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley (Larabee Valley) 762 Comment
  UC1174489  Collinsia grandiflora Volney Rattan 1903-1 1878 Humboldt Comment
  UC41804  Collinsia grandiflora W. C. Blasdale 1896-6-8 Humboldt Graham's Comment
  POM20818  Collinsia sparsiflora var. bruceae Joseph P. Tracy 1916-5-2 4685 Humboldt Garden grown, at Eureka, from seed, my #4242 from lower slopes of Buck Mountain. 762 Comment
  UC1196851  Collinsia sparsiflora var. collina Joseph P. Tracy 1913-6-20 4242 Humboldt Grassy slopes on lower foothills of Buck Mountain. 762 Comment
  HSC32261  Collomia heterophylla J. O. Sawyer 1970-6-24 2250 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UC133644  Collomia heterophylla J. P. Tracy 1909-5-2 2962 Humboldt immediate vicinity Eureka 0 Comment
  UC52553  Collomia heterophylla Mrs. M. H. Manning May 1902 Humboldt near Hupa Comment
  HSC16923  Collomia heterophylla Anonymous 1957-4-27 123 Humboldt 5 mi. E of Honeydew Comment
  HSC40675  Collomia tinctoria Thomas W. Nelson, Jane P. Nelson 1976-7-1 2924 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC102537  Collomia tracyi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1523 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC70702  Collomia tracyi Gail Newton 1980-7-15 1550 Humboldt Near Sims Mtn. 1311 Comment
  HSC97106  Collomia tracyi Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 6 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1364 Comment
  JEPS26241  Collomia tracyi Joseph P. Tracy 1927-6-12 8161 Humboldt Horse Mountain Northern Coast Ranges (in slide rock) 1066 Comment
  CAS-BOT-BC157350  Comarum palustre Doris K. Kildale 1926-6-25 2173 Humboldt Big Lagoon Comment
  UC179929  Conium maculatum Joseph P. Tracy 1914-6-7 4496 Humboldt Region about Humboldt Bay (South Fork Elk River, at Falk's Mill); Northern Coast Region 0 Comment
  HSC37959  Convolvulus arvensis Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC5500  Conyza canadensis Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  RSA183523  Corallorhiza maculata D. E. Anderson 1965-5-15 3687 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  UC1196453  Corallorhiza maculata Joseph P. Tracy 1926-5-15 7497 A Humboldt near Ashfield Butte; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC97979  Corallorhiza mertensiana Cara Witte 2007-7-8 428 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  SBBG1153  Corallorhiza mertensiana H. and M. Dearing 1939-7-25 3709 Humboldt road to Blakes Lookout 1524 Comment
  RSA244999  Cordylanthus maritimus subsp. palustris William J. Ferlatte, B. D. Rogers 1966-8-15 3125 Humboldt 6 miles east of Korbel; Cutoff Red wood Comment
  HSC58546  Cordylanthus tenuis subsp. viscidus Overton, Butler 1979-7-24 9568 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CAS-BOT-BC101142  Corethrogyne filaginifolia Joseph P. Tracy 1936-7-10 15046 Humboldt Vicinity of Carlotta 30 Comment
  CAS-BOT-BC101143  Corethrogyne filaginifolia Doris K. Kildale 1927-6-25 3562 Humboldt Shelter Cove Comment
  CAS-BOT-BC101149  Corethrogyne filaginifolia L. R. Abrams 1916-7-18 6096 Humboldt Arcata to Trinidad Comment
  HSC5415  Corethrogyne filaginifolia D. E. Anderson 1963-5-25 2494 Humboldt 4 mi. W of Petrolia Comment
  RSA167256  Corethrogyne filaginifolia var. californica Joseph P. Tracy 1947-6-8 17705 Humboldt Carlotta; open flat by old Strong's District School House, 5 miles east of town. 61 Comment
  CAS-BOT-BC212016  Cornus nuttallii Doris K. Kildale 1926-4-6 1719 Humboldt Dobbyn Creek, near mouth Comment
  CAS-BOT-BC212017  Cornus nuttallii Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbell Comment
  OBI15277  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity river valley, at Willow crk Comment
  RSA273406  Cornus nuttallii Thomas W. Nelson, Jane Nelson, A. Nelson 1976-6-15 2733 Humboldt Off 2S08 just west of Goat Hill. 1463 Comment
  CAS-BOT-BC212185  Cornus sericea Carl B. Wolf 1937-8-13 9251 Humboldt 11 mi. E. of Hoopa Valley on new road towards Trinity Summit, North Coast Range 1524 Comment
  RSA46902  Cornus sessilis Doris K. Kildale 1926-8-15 2507 Humboldt Willow Creek. 152 Comment
  HSC31386  Cortaderia selloana Ernest P. Camilleri 1974-11-20 Humboldt 2 mi. S of Arcata on Hwy. 101 Comment
  UC1197937  Corylus californica Joseph P. Tracy 1946-8-25 17640 Humboldt Table Bluff, foot of N slope along Hookton Road 9 Comment
  POM264509  Cotula coronopifolia H. E. Parks 1941-09 24211 Humboldt Little River State Park Comment
  UC275488  Crassula connata var. eremica Joseph P. Tracy 1925-5-17 6981 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  HSC48026  Crepis acuminata Brad Klipfel 1974-6-25 424 Humboldt Horse Mtn. Comment
  CAS-BOT-BC290585  Crepis capillaris Doris K. Kildale 1927-6-25 3540 Humboldt Shelter Cove Comment
  CAS-BOT-BC290590  Crepis capillaris L. R. Abrams; R. Bacigalupi 1922-6-25 8287 Humboldt North of Big Lagoon Comment
  RSA47145  Crepis capillaris Doris K. Kildale 1925-7-17 1073 Humboldt Eureka- Cutter tract 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
  UC249531  Crocidium multicaule Joseph P. Tracy 1922-5-29 6075 Humboldt Sout Yager Creek Valley 762 Comment
  HSC57991  Cryptantha affinis G. L. Clifton, Griswold 1979-7-31 11739 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC58318  Cryptantha affinis Overton, Butler 1979-8-2 12606 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1222267  Cryptantha torreyana Joseph P. Tracy 1949-8-11 18484 Humboldt 3 mi se Snow Camp; Twin Lakes 1463 Comment
  HSC82604  Cryptogramma acrostichoides Thomas W. Nelson 1979-7-11 4990 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC6391  Cuscuta californica J. P. Tracy 1930-8-17 9160 Humboldt Big Lagoon 3 Comment
  UC162650  Cuscuta salina var. major Joseph P. Tracy 1911-10-22 3551 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  UC662622  Cuscuta salina var. major C. C. and S. K. Harris 1941-8-28 1175 Humboldt near Table Bluff; Humboldt Bay Comment
  UC902067  Cuscuta suksdorfii Joseph P. Tracy 1949-8-4 18430 Humboldt near Box Camp; Trinity Summit 1524 Comment
  JEPS14234  Cyclospermum leptophyllum Joseph P. Tracy 1927-8-20 8333 Humboldt Blue Slide on Van Duzen River, Northern Coast Ranges Van Duzen River; Northern Coast Ranges, , Blue Slide 91 Comment
  UC1239626  Cynoglossum grande Joseph P. Tracy 1923-3-17 6166 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UCD60124  Cynosurus cristatus A. H. Murphy 1949-6-29 s. n. Humboldt ca. 1.5 miles north of Loleta, H. Perrots Ranch, Table Bluff. Comment
  HSC37257  Cynosurus echinatus Lon Hall 1975-6-19 389 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC44737  Cynosurus echinatus Maralyn O'Meara 1972-6-8 85 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC68940  Cynosurus echinatus Jacqueline Greenleaf 1980-8-12 326 Humboldt Near Pistol Spring. 1082 Comment
  HSC73571  Cynosurus echinatus Gail Newton 1980-7-14 1508 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC75505  Cyperus eragrostis Melinda F. Denton 1981-7-3 4253 Humboldt On Hwy. 36, 32 mi. E of Alton, 17 mi. W of Van Duzen River Rd. 610 Comment
  UCD54033  Cyperus eragrostis K. Esau 1934-5-6 s.n. Humboldt Fort Seward. 152 Comment
  UC1103651  Cyperus squarrosus Joseph P. Tracy 1935-5-30 13918 Humboldt Trinity R. Valley at Willow Creek (in old Clover Flat Mine workings); Trinity R. Valley, Clover Flat Mine 152 Comment
  HSC7284  Cyperus strigosus D. E. Anderson 1963-9-21 2839 Humboldt 0.5 mi E of Willow Creek Comment
  HSC99660  Cypripedium californicum T. Jimerson, J. Pageau 1979-6-22 598 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  CHSC10111  Cytisus scoparius T. M. Mingo 1965-5-1 Humboldt Approximately 5 miles north of Trinidad in fields near the coast. Comment
  HSC14663  Cytisus scoparius var. andreanus T. M. Mingo May 1965 Humboldt 4 mi. N of College Cove Comment
  CAS-BOT-BC189764  Dactylis glomerata F. W. Peirson 1933-7-12 3655 Humboldt 5 miles north of Orick. Comment
  HSC9539  Dactylis glomerata E. W. Styskel 1963-5-16 25 Humboldt 3.0 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UC526850  Danthonia californica Joseph P. Tracy 1934-7-12 13377 Humboldt Big Lagoon 3 Comment
  UCD60985  Danthonia californica E. B. Copeland 1930-6-5 Humboldt Scotia. Comment
  UC526683  Danthonia californica var. americana Joseph P. Tracy 1927-7-4 8234 Humboldt Lone Star Creek North Coast Ranges, Iaqua 609 Comment
  UC552732  Danthonia californica var. americana Joseph P. Tracy 1935-5-25 13853 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC420357  Darmera peltata Doris K. Kildale 1928-6-24 5247 Humboldt Redwood Creek at Berry's Comment
  CAS-BOT-BC420356  Darmera peltata L. B. Kildale 1930-9-9 10409 Humboldt Redwood Creek at Berry's 289 Comment
  SEINET3823243 Image available Daucus pusillus J. P. Tracy 1909-7-18 3021 Humboldt Sand Hills of Ocean Beach at Samoa, opp. Eureka Comment
  UCD127407  Daucus pusillus Linda M. Barker 1976-5-13 1486 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC642294  Daucus pusillus Joseph P. Tracy 1936-6-8 14870 Humboldt bluffs facing ocean Trinidad 3 Comment
  HSC49808  Delairea odorata J. M. DiTomaso 1979-11-7 1551 Humboldt In front yard of house across from Day Care Center on Humboldt State University Campus Comment
  HSC100367  Delphinium decorum subsp. tracyi J. McRae 2010-6-23 Humboldt Jones Ridge off F.S. Rd. 27N02. 1433 Comment
  HSC36195  Delphinium menziesii John Rehling 1975-5-15 83 Humboldt 8 mi. W of Ferndale on the Mattole Rd. Comment
  UC1196328  Delphinium nudicaule Joseph P. Tracy 1937-5-30 15303 Humboldt 5 mi n Blocksburg; Larrabee Creek 365 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
  HSC44763  Delphinium trolliifolium Maralyn O'Meara 1972-6-8 93 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  POM299320  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon near Orick Comment
  UC503029  Delphinium trolliifolium Joseph P. Tracy 1931-4-19 9334 Humboldt hillside near Alton; Northern Coast Ranges 91 Comment
  UC668070  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  JEPS2559 Image available Dentaria californica Joseph P. Tracy 1921-3-20 5426 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River; Van Duzen River at Blue Slide, E of Hydesville, Humboldt Co. 91 Comment
  UCD61140  Deschampsia cespitosa Joseph P. Tracy 1937-8-12 15642 Humboldt Snow Camp. 1402 Comment
  HSC96496  Deschampsia cespitosa subsp. cespitosa Gordon Leppig 1998-7-19 983 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  UC922025  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1937-8-12 15642 Humboldt Snow Camp 1402 Comment
  UCD63743  Deschampsia cespitosa subsp. holciformis R. Tofsrud 1949-7-1 Humboldt Between Scotia and Capetown. Comment
  HSC99497  Deschampsia danthonioides K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 157 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  UCD61390  Deschampsia danthonioides A. H. Murphy 1951-5-21 Humboldt Tooby and Prior Ranch, Blocksburg. Experimental grazing pasture, 2 miles S of Blocksburg. Comment
  UCD62501  Deschampsia danthonioides A. H. Murphy 1951-5-21 47 Humboldt Prior Ranch, 2 miles S of Blocksburg. Comment
  CAS-BOT-BC174313  Deschampsia elongata J. O. Sawyer; R. J. Cole 1977-7-3 3019 Humboldt Environs of Mud Spring. Big Hill Road (F.S. 8N01) 1524 Comment
  HSC102190  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1104 Humboldt Andy's Camp 1564 Comment
  HSC74436  Deschampsia elongata Gail Newton 1980-8-10 2067 Humboldt Near Blake Mtn. 1707 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
  CHSC7029  Dicentra formosa K. R. Stern 1964-6-17 2115 Humboldt Ca. 9 mi. w of Blue Lake, s side of US Hwy. #299. Comment
  CHSC95018  Dicentra formosa K. Lang; J. Lang 2005-3-14 28 Humboldt Trinidad, N. California coast 51 Comment
  HSC79505  Dicentra formosa Kenneth Clark 1980-3-24 541 Humboldt Dead Man's Gulch, Shelter Cove 69 Comment
  UC1586878  Dicentra formosa Juha Pykala and D. H. Norris 1987-6-10 1525 Humboldt about 1-2 mi s Onion Lake (on Onion Lake Road); Six Rivers National Forest 1300 Comment
  UC35009  Dicentra uniflora J. Burtt Davy 1899-6-23 5816 Humboldt Trinity Summit summit; North Coast Ranges 2133 Comment
  CAS-BOT-BC209193  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  SEINET202038 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1939-7-9 16323 Humboldt Bald Mountain at Lake Prairie Comment
  SEINET12053836  Dichelostemma capitatum L. K. Henry 1971-1 Humboldt along Rt. 36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  CAS-BOT-BC502556  Dichelostemma congestum P. E. Goddard 1907-5-29 b. 109 Humboldt Van Duzen Comment
  SEINET10872226  Dichelostemma ida-maia Mary Merello 1993-6-19 Merello 662 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  CAS-BOT-BC501013  Dichelostemma ida-maia Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  CAS-BOT-BC501019  Dichelostemma ida-maia L. R. Abrams 1918-6-16 7135 Humboldt Willow Creek Comment
  HSC3032  Dichelostemma ida-maia Francis Winter 1960-5-7 Humboldt 1.0 mi. S of Tish-Tang Boy Scout Camp entrance 244 Comment
  UCSB22162  Dichelostemma ida-maia Keefe, Joseph 1967-7-8 Humboldt Avenue of the Giants, 2.4 miles north of Miranda 121 Comment
  HSC35967  Dichelostemma multiflorum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1951 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  POM273545  Digitalis purpurea Lyman D. Benson 1929-7-19 1879 Humboldt Mouth of Matole [Mattole] River. Comment
  CAS-BOT-BC150342  Diplacus aurantiacus C. L. Hitchcock; J. S. Martin 1939-7-14 5439 Humboldt At Shelter Cove Comment
  CAS-BOT-BC150343  Diplacus aurantiacus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC150349  Diplacus aurantiacus L. R. Abrams 1916-7-18 6141 Humboldt At Trinidad Comment
  RSA249498  Dipsacus fullonum R. F. Thorne, P. C. Everett 1965-8-9 35282 Humboldt 2.5 miles N of Arcata. 8 Comment
  RSA1510  Disporum smithii E. R. Johnson 1929-08 1414 Humboldt Arcata Redwood Park 76 Comment
  UC146140  Disporum smithii Joseph P. Tracy 1908-6 2867 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 304 Comment
  HSC71215  Distichlis spicata Thomas W. Nelson, Doris K. Niles 1979-5-19 4693 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  UC249505  Dodecatheon hendersonii Joseph P. Tracy 1922-4-30 5994 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS9492  Dodecatheon hendersonii Joseph P. Tracy 1927-5-15 8061 Humboldt near summit on road w from Hoopa to Bair's; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC82394  Dodecatheon jeffreyi Thomas W. Nelson 1979-7-11 5007 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  POM175550  Downingia elegans var. corymbosa F. W. Peirson 1923-7-10 3871 Humboldt About 6 miles N of Garbersville. Comment
  HSC74471  Draperia systyla Gail Newton 1980-7-23 1739 Humboldt Near Packsaddle Ridge 1463 Comment
  CAS-BOT-BC158415  Drymocallis rhomboidea Doris Kildale Gillespie 1931-6-7 10609 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  UC203874  Dudleya farinosa Joseph P. Tracy 1918-7-1 4075 Humboldt 3 mi s point of the cape (sw slopes fronting the ocean); Cape Mendocino Comment
  UC1056037  Echinochloa crus-galli H. E. Parks 24213 Humboldt Spruce Cove Comment
  UC213006  Eleocharis bella Joseph P. Tracy 1919-5-31 5180 Humboldt shores of Lack Pond, near Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC90810  Eleocharis macrostachya Gail Newton 1982-6-10 3594 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC112837  Eleocharis macrostachya Doris K. Kildale 1928-7-29 5934 Humboldt Kanman Pond, Bear River Ridge. Comment
  HSC7308  Eleocharis macrostachya R. L. Jarvis 1962-4-7 11 Humboldt E of Hwy. 101, 4 mi. S of Eureka 0 Comment
  POM273092  Eleocharis obtusa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans Region Comment
  UC666875  Eleocharis obtusa Joseph P. Tracy 1927-8-7 8319 Humboldt Lack Pond, opposite mouth of Willow Creek Trinity River Valley 152 Comment
  CHSC96433  Eleocharis pachycarpa Gordon Leppig 1998-7-19 979 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E, 4557202N. 3 Comment
  RSA53824  Eleocharis palustris Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans Region Comment
  HSC76577  Elymus X hansenii D. K. Imper 1981-8-12 908 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  UC526784  Elymus X hansenii Joseph P. Tracy Jul 16 1930-Jul 19 1930 9054 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC526781  Elymus elymoides subsp. elymoides Joseph P. Tracy 1932-7-14 10531 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC68971  Elymus glaucus Jacqueline Greenleaf 1980-8-12 315 Humboldt Near Henry Ridge. 1128 Comment
  RSA10138  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain 1402 Comment
  UC552765  Elymus glaucus H. E. Parks and Joseph P. Tracy 1934-6-14 11026 Humboldt Horse Mt. Northern Coast Ranges 1371 Comment
  POM295816  Elymus glaucus subsp. virescens Lyman Benson 1929-7-19 1856 Humboldt Dyerville to Matole River. Comment
  HSC103977  Elymus mollis subsp. mollis C. Reynolds 2015-4-12 34 Humboldt Along Freshwater Beach, close to wave slope, south of the Kuchel Visitor Center 3 Comment
  UC189196  Elymus multisetus Joseph P. Tracy 1912-7-26 3839 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC573853  Elymus multisetus H. S. Yates 1936-6-17 5722 Humboldt near Burr Valley; South Fork Pk. Quadrangle Comment
  UC1103292  Elytrigia repens Joseph P. Tracy 1937-7-17 15434 Humboldt Eureka 60 Comment
  UC1103469  Elytrigia repens Joseph P. Tracy 1937-8-13 15664 Humboldt Loleta 9 Comment
  UC146136  Epilobium brachycarpum Joseph P. Tracy 1909-7-31 3040 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC583055  Epilobium brachycarpum P. A. Munz 1936-8-13 14381 Humboldt 10 mi w Willow Creek Comment
  UC205233  Epilobium canum subsp. latifolium Joseph P. Tracy 1919-9-23 5288 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC74688  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-7 2467 Humboldt Near Board Camp Mtn. 1478 Comment
  UC726349  Epilobium ciliatum subsp. ciliatum A. A. Heller 1923-7-8 13767 Humboldt 10 mi s Dyerville; Humboldt Camp Comment
  HSC27041  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-8-25 288 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  UC722075  Epilobium ciliatum subsp. ciliatum C. L. Hitchcock and J. S. Martin 1939-7-14 5441 Humboldt 7 mi e Shelter Cove 243 Comment
  HSC76625  Epilobium ciliatum subsp. glandulosum Teresa Prendusi 1981-7-24 481 Humboldt Near Whiteys Peak 1585 Comment
  JEPS31496  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1935-7-25 14228 Humboldt Corral Prairie Trinity Summit 1584 Comment
  SEINET9067301 Image available Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-1 24050 Humboldt Spruce Cove, Trinidad 64 Comment
  UC161070  Epilobium densiflorum Joseph P. Tracy 1911-7-8 3475 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC562516  Epilobium densiflorum Joseph P. Tracy 1934-7-9 13352 Humboldt bed of dry pond Dobbyn Creek 152 Comment
  UC1222858  Epilobium densiflorum Joseph P. Tracy 1950-6-18 18843 Humboldt Davis Creek Cape Mendocino (ditch, s of point of Cape) 3 Comment
  HSC55085  Epilobium hornemannii G. L. Clifton, Griswold 1979-7-31 11749 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  BLMAR178  Epilobium minutum Donald Hazlett 1994-6-7 178 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC49636  Epilobium minutum J. P. Smith, J. O. Sawyer 1973-5-12 6700 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC78650  Epilobium minutum D. K. Imper 1982-7-13 1484 Humboldt Near Chaparral Mtn. 1386 Comment
  CAS-BOT-BC171846  Epilobium septentrionale Carl B. Wolf 1927-8-30 1235 Humboldt 2 mi. so. of Petrolia on Matole River near where road crosses river. Comment
  CAS-BOT-BC171847  Epilobium septentrionale Carl B. Wolf 1927-8-30 1234 Humboldt 2 mi. so. of Petrolia on Matole River near where road crosses river. Comment
  CAS-BOT-BC57105  Equisetum X ferrissii Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River near Boyce Creek, Orleans region Comment
  HSC46006  Equisetum hyemale subsp. affine J. P. Smith 1971-10-9 4996 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC61634  Equisetum laevigatum Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  RSA239686  Equisetum laevigatum Larry E. DeBuhr 1973-4-23 990 Humboldt Richardson Grove Redwood State Park. Comment
  HSC54551  Equisetum telmateia subsp. braunii Overton, Butler 1979-7-23 9541 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA183500  Equisetum telmateia var. braunii D. V. Sanford 1963-3-23 23 Humboldt [no locality information provided] Comment
  CAS-BOT-BC291174  Erechtites glomeratus Kenneth Clark 1980-4-18 597 Humboldt Shelter Cove. Dead Man's Gulch 42 Comment
  POM224221  Erechtites minimus H. E. Parks 1931-09 01058 Humboldt Trinidad. 76 Comment
  HSC102576  Eremogone congesta var. subcongesta M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1563 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC57889  Eremogone congesta var. suffrutescens Overton, Butler 1979-7-31 11446 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CHSC67762  Erica lusitanica Vernon H. Oswald 1997-2-12 8306 Humboldt Elk Head, N end of Trinidad State Beach, along the trail on the bluff overlooking the ocean. Also common along Hwy. 101 near Trinidad. 30 Comment
  UC1223016  Erigeron aliceae Joseph P. Tracy 1950-7-31 19237 Humboldt top of Grouse Mountain 1524 Comment
  UC165069  Erigeron foliosus var. confinis Joseph P. Tracy 1911-7-6 3353 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek 762 Comment
  CAS-BOT-BC296108  Erigeron foliosus var. confinis J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek Comment
  HSC5525  Erigeron glaucus D. E. Anderson 1961-8-25 1755 Humboldt 1.5 mi. S of Trinidad Comment
  HSC48815  Erigeron inornatus var. inornatus Brad Klipfel 1973-7-31 229 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56930  Erigeron inornatus var. inornatus G. L. Clifton, Butler 1979-7-26 9359 Humboldt Near Salmon Mtn., close to the town of Forks of the Salmon 1935 Comment
  UC205158  Erigeron klamathensis Joseph P. Tracy 1919-9-25 5299 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  NY688658  Erigeron maniopotamicus T. W. Nelson 2004-6-18 9253 Humboldt Board Camp Mountain Road, off Forest Service Road 49N38, 1 mile from junction with Forest Service Road 1. 1481 Comment
  SBBG63320  Erigeron philadelphicus J. R. and R. C. Robbins 1932-7-24 Humboldt S of Scotia Comment
  UCD20387  Erigeron philadelphicus var. philadelphicus K. Esau 1935-5-22 s.n. Humboldt Fort Seward. Comment
  JEPS21941  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1936-6-17 14963 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, , Burr Valley 1066 Comment
  UC1223008  Erigeron robustior Joseph P. Tracy 1951-6-26 19585 Humboldt extreme head of Redwood Creek; , Board Camp Mountain Comment
  HSC13527  Eriodictyon californicum P. J. Zinke 1950-10-9 182 Humboldt E slope of King Peak 1159 Comment
  CAS-BOT-BC224254  Eriodictyon californicum L. R. Abrams 1918-6-17 7208 Humboldt Hoopa to Briars Resort on road to Korbel Comment
  HSC76558  Eriogonum compositum Teresa Prendusi 1981-7-24 516 Humboldt Near Whiteys Peak 1634 Comment
  HSC76606  Eriogonum compositum Teresa Prendusi 1981-7-21 280 Humboldt Near Whiteys Peak 1646 Comment
  CDA18207  Eriogonum latifolium G. D. Barbe, T. C. Fuller 1974-6-17 1833 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sea Court, Shelter Cove. 60 Comment
  UC665682  Eriogonum latifolium H. E. Parks August,1941 24198 Humboldt sand dunes, Little River Little River Comment
  RSA766119  Eriogonum latifolium Arthur Menzies 1961-9-3 s.n. Humboldt Samon Comment
  UC198571  Eriogonum nudum var. nudum Joseph P. Tracy 1916-9-6 4761 Humboldt head of Canoe Creek Northern Coast Ranges, , Canoe Creek (Grasshopper Ridge) 609 Comment
  UC203955  Eriogonum nudum var. nudum Joseph P. Tracy 1918-7-3 4987 Humboldt Wilder Ridge Northern Coast Ranges, Kings Peak Range, Wilder Ridge 762 Comment
  SD42294  Eriogonum nudum var. pubiflorum Carl B. Wolf 1937-9-8 9300 Humboldt North Coast Range, Bull Creek-Petrolia Road, 11 Mi. W. of Redwood Highway 305 Comment
  JEPS56214  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1935-7-28 14328 Humboldt Head of Devil's Hole Trinity Summit Comment
  UC672897  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1933-7-25 12881 Humboldt Grouse Mountain 1524 Comment
  UCR131739  Eriogonum umbellatum var. nelsoniorum C. B. Wolf 1937-8-13 09221 Humboldt North Coast Range, 8 miles east of Hoopa Valley on new road toward Trinity Summit 1475 Comment
  HSC73935  Eriophyllum lanatum Gail Newton 1980-6-28 680 Humboldt Near Mad River Butte. 1536 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
  CAS-BOT-BC301015  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1926-5-9 1980 Humboldt Kneeland Prairie 762 Comment
  HSC5581  Eriophyllum lanatum var. achilleoides H. E. Parks, J. P. Tracy 1934-6-27 11063 Humboldt Grouse Mtn. 1433 Comment
  JEPS34590  Eriophyllum lanatum var. achilleoides W. L. Jepson 1921-8-11 9417 Humboldt Big Lagoon Comment
  POM288401  Eriophyllum lanatum var. grandiflorum Lyman Benson 1929-7-19 1862 Humboldt Dyerville to Matole River. Comment
  UC17090  Erodium cicutarium Joseph Burtt Davy 1899-6-8 5342 Humboldt Bell Springs Comment
  UC183762  Erodium cicutarium Joseph P. Tracy 1913-6-14 4130 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC7229  Erodium cicutarium D. E. Anderson 1963-5-19 2463 Humboldt Barry Rd., 1/2 mi. W of Kneeland school Comment
  UC1199177  Erysimum capitatum Joseph P. Tracy 1927-6-12 8149 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  JEPS53581  Erysimum capitatum var. capitatum Lincoln Constance 1934-6-22 919 Humboldt summit of peak South Fork Eel River, Bull Creek Region, Grasshopper Peak (down Canoe Cr. rd to Redwood Hwy and thence n to Dyerville) Comment
  UCR179237  Erysimum menziesii R. G. Swinney 1968-4-3 240 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  HSC58127  Erysimum perenne Gilbert Muth 1979-8-1 12114 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  SEINET14045946 Image available Erythranthe guttata Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-1 15260 Humboldt Clam Beach, 15 miles North Eureka. Comment
  HSC44870  Erythronium oregonum subsp. leucandrum J. P. Smith, J. O. Sawyer 1973-5-12 6695 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  UC1586940  Erythronium purpurascens Juha Pykala and D. H. Norris 1987-6-11 1586 Humboldt s North Trinity Mountain (w of Crogan Hole); North Trinity Mountain Wilderness Area 1550 Comment
  HSC97441  Eschscholzia californica Ivy Watson 2008-10-5 45 Humboldt Blue Lake, 500 m upstream of the Hatchery Rd. bridge. 22 Comment
  UC1199348  Euchiton gymnocephalus Joseph P. Tracy 1936-8-24 15175 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  BLMAR291  Euonymus occidentalis var. occidentalis Jennifer Anthony-Wheeler 2001-6-19 291 Humboldt Headwaters Forest Reserve, growing shaded streambank by ' babbits ridge ' 335 Comment
  SEINET10493552  Euphorbia Mary Susan Taylor 1990-8-22 Taylor 6080 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC98864  Euphorbia crenulata Cara Witte 2008-8-5 992 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. 1233 Comment
  UC709444  Euphorbia lathyris Joseph P. Tracy 1941-10-26 17052 Humboldt Hydesville 91 Comment
  NY263154  Euphorbia occidentalis V. K. Chesnut 1888-7-23 Humboldt Hy-Am-Pum (spelling?) Comment
  HSC83991  Euphorbia peplus L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 223 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  CAS-BOT-BC310680  Euthamia occidentalis Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  CAS-BOT-BC413854  Fallopia sachalinensis T. C. Fuller 1962-8-6 9364 Humboldt S. side of Hwy 299 to Willow Creek just e. of road to Bald Mtn., 11.2 mi. e. of Blue Lake Comment
  CAS-BOT-BC278305  Festuca californica subsp. californica Joseph P. Tracy 1933-6-13 12603 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  HSC98939  Festuca californica var. californica Cara Witte 2008-7-14 901 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  RSA123475  Festuca californica var. californica H. S. Yates 1936-6-22 5848 Humboldt Willow Creek, China Flat (Humboldt) Comment
  BLMAR17  Festuca idahoensis Brad Barr June, 1982 17 Humboldt King range, N facing slope, Spanish ridge Comment
  HSC63852  Festuca idahoensis M. A. Baker 1979-6-27 916 Humboldt S facing ridgeside Comment
Read comments
Feb 15 2013
  HSC70903  Festuca idahoensis R. York 1980-5-18 599 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC278810  Festuca occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC74474  Festuca occidentalis Gail Newton 1980-7-23 1752 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC9972  Festuca rubra H. E. Parks Jun 1935 11072 Humboldt Buck Mtn. Comment
  UC1145215  Festuca rubra Joseph P. Tracy 1950-6-17 18838 Humboldt Eureka 3 Comment
  UCD66377  Festuca rubra Gordon Leppig 1998-6-1 871 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. @ Ammon Ridge Rd. 1524 Comment
  UC1103704  Festuca subulata Joseph P. Tracy 1936-6-17 14945 Humboldt nw slope Buck Mountain 792 Comment
  SEINET200725  Filago gallica J. P. Tracy 1914-5-14 4467 Humboldt Fort Seward 122 Comment
  HSC27020  Foeniculum vulgare Brad Klipfel 1973-8-20 282 Humboldt At Hwy 101 and Hookton Road, N of Eureka Comment
  RSA114996  Fragaria chiloensis E. K. Balls, Lee W. Lenz 1955-5-15 20737 Humboldt 12.6miles SW of Ferndale along Old Coast road to Capetown 259 Comment
  CHSC24854  Fragaria vesca A. D. Launer 1976-4-10 1 Humboldt On n roadbank of Church St., ca. 100 yds e of Blocksburg. 472 Comment
  HSC103984  Fragaria vesca E. R. Fyer 2015-3-19 12 Humboldt Turnout along side Hwy. 299, near a small creek 459 Comment
  HSC70357  Fragaria vesca M. A. Baker 1980-6-7 1866 Humboldt Near Ammon Creek 732 Comment
  HSC27127  Frangula californica J. P. Smith, J. O. Sawyer 1973-2-10 5841 Humboldt 2.7 mi. W of Hwy. 96 on Brannan Mtn. Road, N of Willow Creek 366 Comment
  UCD112747  Frangula californica Carl B. Wolf 1934-6-30 5842 Humboldt back of Shelter Cove. Comment
  BLMAR243  Frangula californica subsp. californica Jennifer Anthony-Wheeler 1997-7-24 243 Humboldt Lacks Creek, growing beside rd with ceanothus & rubus 1219 Comment
  CAS-BOT-BC52741  Frangula californica subsp. californica Doris K. Kildale 1926-6-13 2162 Humboldt Briceland Bridge 1/2 west of Garberville. 114 Comment
  CAS-BOT-BC59958  Frangula purshiana H. E. Parks; S. T. Parks 1937-6-1 24018 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC59962  Frangula purshiana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata. Comment
  HSC89485  Frangula purshiana P. A. Daly 1984-5-13 19 Humboldt Along trail at Trinidad Head 61 Comment
  UC1198637  Fraxinus latifolia Joseph P. Tracy 1923-6-19 6293 Humboldt Upper Mattole North Coast Ranges 152 Comment
  CAS-BOT-BC136030  Fritillaria affinis Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbell Comment
  UC1197632  Fritillaria affinis Joseph P. Tracy 1922-5-29 6066 Humboldt South Yager Creek Valley; Northern Coast Ranges, South Yager Creek Valley 762 Comment
  HSC43114  Fritillaria affinis Maralyn O'Meara 1974-5-14 362 Humboldt Beside Hwy. 36, 14.2 mi. E of Bridgeville Comment
  CAS-BOT-BC130448  Fritillaria purdyi Doris K. Kildale 1928-3-28 4364 Humboldt Kneeland Prairie 853 Comment
  CHSC114069  Fumaria capreolata Robert R. Halse 2013-3-28 8767 Humboldt Weedy area by a Texaco station near 3543 Broadway St. (US Hwy Ave. Comment
  HSC8377  Fumaria officinalis Wm. F. Bowman 1968-11-20 Humboldt 4 mi. SE of Arcata, along Jacoby Creek. Comment
  RSA168953  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley. On NW slope of Buck Mtn. 1067 Comment
  UC416634  Galium bolanderi Harley P. Chandler 1901-6-12 1452 Humboldt Bluff Creek North Coast Ranges, Klamath River 304 Comment
  RSA698804  Galium californicum J. R. Bruff 1937-8-17 916 Humboldt Richardson Grove. Comment
  HSC45640  Galium muricatum Diane L. Reed 1978-5-7 57 Humboldt Fourmile Creek, 4 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  UC1225913  Galium muricatum Joseph P. Tracy 1942-7-1 17359 A Humboldt opposite Buck Mountain (along river); Van Duzen River, Dinsmore's 762 Comment
  JEPS6494  Galium parisiense Joseph P. Tracy 1937-7-11 15421 Humboldt Garberville 152 Comment
  UC198664  Galium parisiense Joseph P. Tracy 1916-6-19 4710 Humboldt Bosworth's Northern Coast Ranges, Laribee Creek 457 Comment
  HSC90797  Galium parisiense W. L. Jepson 1936-8-12 17882 Humboldt Miranda, S Fork of the Eel River Comment
  UC175682  Galium porrigens Joseph P. Tracy 1912-7-26 3863 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC602520  Galium porrigens Joseph P. Tracy 1926-4-11 7406 A Humboldt Bridgeville 198 Comment
  HSC99319  Galium porrigens var. porrigens C. B. Wolf 1927-8-30 1225 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  SD70521  Galium porrigens var. porrigens Lauramay T. Dempster, G. L. Stebbins 1963-7-8 3843 Humboldt Willow Creek at Hwy. crossing north of Willow Creek town 459 Comment
  UC602544  Galium trifidum Joseph P. Tracy 1934-7-2 13287 Humboldt mouth Little River 6 Comment
  BLMAR418  Galium trifidum subsp. columbianum Jennifer Wheeler August, 2007 418 Humboldt South Spit, growing on East side near bay 9 Comment
  HSC48772  Gamochaeta ustulata Brad Klipfel 1975-5-22 614 Humboldt Near the city of Eureka airport S of Samoa Comment
  UC1199352  Gamochaeta ustulata Joseph P. Tracy 1918-7-6 5043 Humboldt South Fork of, near the Humboldt-Mendocino County line Eel River; Northern Coast Ranges, Eel River 152 Comment
  CAS-BOT-BC188535  Garrya elliptica H. E. Parks 1933-2-1 4287 Humboldt Trinidad, on cliffs near ocean Comment
  HSC8400  Garrya fremontii D. E. Anderson 1965-4-24 3537 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  RSA89597  Garrya fremontii M. F. Moseley 1952-8-21 344 Humboldt Along western valley wall of Willow Creek, mostly within Hoopa Indian Reservation, upstream from Willow Creek Village. Comment
  SEINET200332 Image available Gastridium phleoides J. P. Tracy 1912-7-26 3824 Humboldt Kneeland Prairie Comment
  HSC103127  Gaultheria ovatifolia M. Mesler 2009-7-31 811 Humboldt South Fork Mtn. FS 1, 11.8 miles north of intersection with 4N12, just north of mile marker 34. 1486 Comment
  HSC74354  Gaultheria ovatifolia Gail Newton 1980-6-17 216 Humboldt Near Onion Mtn. 1341 Comment
  CHSC24746  Gaultheria shallon G. Strang 1976-4-11 9 Humboldt All along e side of U.S. 101 ca. 2 mi s of Orick. 9 Comment
  HSC23125  Gaultheria shallon G. M. Nordstrom 1966-4-24 17 Humboldt Kneeland-Maple Creek Rd., near jct. with Korbel rd. 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
  RSA46828  Gaultheria shallon Doris K. Kildale 1926-1-3 1465 Humboldt Big Lagoon road near Trinidad. Comment
  SBBG5537  Gaultheria shallon H. and M. Dearing 1939-5-21 3449 Humboldt near Trinidad 91 Comment
  UC1197592  Gaultheria shallon J. P. Tracy 1901-5-30 1114 Humboldt immediate vicinity Eureka 0 Comment
  HSC55175  Gayophytum diffusum subsp. parviflorum Gilbert Muth 1979-8-1 12176 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  UC562500  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-7-26 12919 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1196963  Gayophytum humile Joseph P. Tracy 1949-6-25 18593 Humboldt Box Camp Trinity Summit 1463 Comment
  HSC58834  Gayophytum racemosum Overton, Butler 1979-7-31 11406 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  JEPS64793  Genista monspessulana W. L. Jepson 1932-7-28 16435 Humboldt Dyerville 91 Comment
  UC165804  Geranium carolinianum J. P. Tracy 1901-6-23 1186 Humboldt immediate vicinity of Eureka 0 Comment
  HSC8646  Geranium dissectum R. J. Vernimen 1963-5-11 55 Humboldt 0.5 mi. off Samoa Rd. behind Georgia-Pacific dump, 7.5 mi. SW of Arcata Comment
  HSC95593  Geranium dissectum Andrea Pickart 2002-5-24 110 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  UC1541358  Geranium molle Harold E. Parks May 1934 4323 Humboldt Spruce Cove Trinidad Comment
  UC668044  Geranium molle Joseph P. Tracy 1933-5-19 12197 Humboldt Alton to Fortuna (along the Eel River); Eel River 15 Comment
  HSC8653  Geranium molle Jack Rockwell 1962-5-4 55 Humboldt 488 Comment
  HSC102014  Geum macrophyllum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 915 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC100591  Gilia capitata Carl C. Marshall Jun 1885 103 Humboldt Eel River region. Comment
  SEINET12278778  Gilia capitata L. K. Henry 1971-1 s.n. Humboldt along Rt 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  JEPS69517  Gilia capitata subsp. capitata Lincoln Constance 1934-5-23 621 Humboldt sw slope upper end Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, Look Prairie 365 Comment
  CAS-BOT-BC226143  Gilia capitata subsp. pacifica Carl B. Wolf 1937-8-11 8901 Humboldt Fleener Creek, 1/2 mi. So. of Centerville 45 Comment
  CAS-BOT-BC226149  Gilia capitata subsp. pacifica Doris K. Kildale 1927-7-1 3626 Humboldt Alton Hill 30 Comment
  SD197869  Gilia millefoliata Peter L. Morrell 1993-6-9 280 Humboldt Samoa Peninsula near Eureka, along Highway 255, 1.5 mile south of Samoa intersection, west side of highway. 7 Comment
  UC1197905  Gilia tricolor subsp. tricolor Joseph P. Tracy 1929-5-5 8561 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River, Miranda (along South Fork of Eel River) 121 Comment
  UC906684  Gilia tricolor subsp. tricolor Joseph P. Tracy 1942-5-16 17340 Humboldt Garberville 152 Comment
  JEPS11824  Githopsis diffusa subsp. robusta Lincoln Constance 1934-6-4 819 Humboldt Look Prairie, and Bull Creek road to Dyerville South Fork Eel River, Bull Creek Region Comment
  RSA246750  Glehnia littoralis subsp. leiocarpa R. F. Thorne, P. Everett 1965-8-7 35218 Humboldt Samoa Peninsula. 3 Comment
  UCD127514  Glehnia littoralis subsp. leiocarpa Linda M. Barker 1976-6-22 1626 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC53405  Glyceria elata Joseph Burtt Davy 1899-7-26 5881 Humboldt above Martin's Ferry (swamp at Sam Lone's<sp?>) Comment
  UC1145104  Glyceria grandis Joseph P. Tracy 1936-6-28 15024 Humboldt Lake Prairie; Bald Mountain 1066 Comment
  SEINET7292868 Image available Glyceria occidentalis Richard W. Pohl 1963-1 9450 Humboldt Korbel Comment
  UC673068  Glycyrrhiza lepidota Joseph P. Tracy 1933-6-25 12626 Humboldt Camp Grant Eel River 60 Comment
  UC582518  Gnaphalium palustre Joseph P. Tracy 1933-8-30 13043 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC630460  Gnaphalium palustre H. E. and S. T. Parks 1937-8-1 24080 Humboldt Spruce Cove Northwestern California, Trinidad, Spruce Cove Comment
  HSC99692  Goodyera oblongifolia T. Jimerson, J. Pageau 1979-6-12 535 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  UC1196437  Goodyera oblongifolia J. P. Tracy 1900-7-4 879 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  UC14960  Goodyera oblongifolia Harley P. Chandler June, 1901 1397 A Humboldt North Coast Ranges, Hupa Indian Reservation Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  CAS-BOT-BC304732  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1934-4-11 1321 Humboldt Eureka Comment
  CAS-BOT-BC304733  Grindelia hirsutula Carl B. Wolf 1927-8-22 783 Humboldt Big Lagoon Comment
  CAS-BOT-BC304739  Grindelia hirsutula Joseph P. Tracy 1939-8-6 16397 Humboldt Shore of Big Lagoon 3 Comment
  HSC91913  Grindelia hirsutula E. Mackey 1986-12-18 Humboldt Patricks Point State Park; parking lot at Palmer's Point Comment
  POM359112  Grindelia stricta var. platyphylla M. B. Dunkle 1936-8-18 4813 Humboldt South of Eureka. 91 Comment
  RSA18065  Grindelia stricta var. stricta C. B. Wolf 1927-8-22 783 Humboldt Big Lagoon. Comment
  RSA249328  Hackelia bella D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  HSC97938  Hackelia californica Cara Witte 2007-5-31 143 Humboldt Off National Forest 1. Near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of road. 1510 Comment
  HSC57955  Hastingsia alba G. L. Clifton, Griswold 1979-7-31 11642 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC91596  Hedera helix E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near old road in dune area Comment
  UC180187  Helenium bigelovii Joseph P. Tracy 1914-7-4 4540 Humboldt at Murphy Ranch, High Prairie on Bald Mountain Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC100435  Helenium puberulum Carl C. Marshall Jul 1886 350 Humboldt Liscom's Hill. Comment
  RSA1499  Helenium puberulum E. R. Johnson 1929-08 1431 Humboldt Along the Redwood Hwy, S of Eureka. 30 Comment
  HSC25942  Helminthotheca echioides Thomas W. Nelson 1970-10-31 294 Humboldt Eel River near N end of the Scotia Bluff. Comment
  HSC97470  Hemizonella minima Cara Witte 2007-5-23 92 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  CAS-BOT-BC306182  Hemizonia congesta subsp. congesta David D. Keck 1944-7-11 5497 Humboldt Cape Mendocino 3 Comment
  CAS-BOT-BC306183  Hemizonia congesta subsp. congesta J. Clausen 1932-9-18 679 Humboldt 4 miles southwest of Capetown on the road to Petrolia 213 Comment
  UC205206  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1919-7-20 5183 Humboldt w side near top Mount Pierce; Northern Coast Ranges, Mount Pierce 914 Comment
  RSA126141  Hemizonia tracyi Joseph P. Tracy 1923-7-4 6529 Humboldt Valley of South Yager Creek Comment
  CDA40920  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 3 of 3 0 Comment
  HSC74733  Heterocodon rariflorum Gail Newton 1981-7-24 2318 Humboldt Near Chaparral Mtn. 1433 Comment
  UC34953  Heterocodon rariflorum Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  POM89166  Heteromeles arbutifolia Joseph P. Tracy 1920-8-15 5389 Humboldt Klamath River at Bluff Creek. 152 Comment
  UC1198756  Heteromeles arbutifolia Joseph P. Tracy 1922-9-3 6107 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges 152 Comment
  UC1222321  Heteromeles arbutifolia Joseph P. Tracy 1950-9-22 19380 Humboldt about 3 mi sw Orleans (above Bluff Creek) Comment
  POM288698  Heterotheca oregona var. rudis Lyman Benson 1928-7-12 477 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  UC1222390  Heuchera micrantha Joseph P. Tracy 1950-6-8 18716 Humboldt 2 mi s Ferndale (Wild Cat Road, at the Sand Cut) 304 Comment
  CAS-BOT-BC420722  Heuchera micrantha var. diversifolia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC420723  Heuchera micrantha var. diversifolia L. R. Abrams 1918-6-16 7148 Humboldt Willow Creek Comment
  UC1198855  Heuchera micrantha var. diversifolia Joseph P. Tracy 1948-6-20 18071 Humboldt Willow Creek Canyon, along Trinity Highway, near Ruby Creek; Willow Creek Canyon 609 Comment
  HSC57874  Hieracium albiflorum Overton, Butler 1979-7-31 11410 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC98324  Hieracium albiflorum Jimerson, J. Pageau 1979-5-24 469 Humboldt Near Orleans 226 Comment
  UC582421  Hieracium albiflorum Joseph P. Tracy 1937-8-7 15620 Humboldt Bald Mt. 914 Comment
  UC1199466  Hieracium nudicaule Joseph P. Tracy 1929-7-4 8633 Humboldt French Camp Ridge 1066 Comment
  UC165198  Hieracium scouleri Joseph P. Tracy 1908-7-1 2891 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  RSA34312  Hierochloe occidentalis L. Larsen 1935-4-23 s.n. Humboldt Orleans Comment
  CDA28238  Hierochloe occidentalis Wilma Mae Lowary & Norah van Kleeck 1974-8-8 Humboldt Lady Bird Johnson Grove, Redwood National Park, northeast of Orick. 0 Comment
  HSC49817  Hippuris vulgaris R. York 1979-4-16 237 Humboldt Between Arcata and Eureka along Hwy. 101 Comment
  UC187268  Holcus lanatus Joseph P. Tracy 1911-7-7 3389 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Creek w/Trinity River 914 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
  UCD84961  Holcus lanatus Henry M. Pollard 1945-8-24 7892 Humboldt Klamath River Canyon. Between Orleans and Camp Creek. Comment
  UCR143024  Holcus lanatus M. S. Jussel 1931-5-2 s.n. Humboldt Northwestern Coast; Outer North Coast Ranges, near Garberville 183 Comment
  UCD84886  Holcus mollis Joseph P. Tracy 1948-7-31 18079 Humboldt Eureka. 30 Comment
  HSC45476  Holodiscus discolor Maralyn O'Meara 1974-7-11 547 Humboldt Kneeland; Barry Ridge Comment
  UC1198702  Holodiscus discolor J. P. Tracy 1901-6-16 1150 Humboldt immediate vicinity of Eureka 0 Comment
  UC1132099  Hordeum brachyantherum subsp. brachyantherum H. S. Yates 1936-2-16 5680 Humboldt 1 mi ne Samoa; Eureka Quad. Comment
  CAS-BOT-BC289565  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1935-5-25 13866 Humboldt Fort Seward 106 Comment
  UC589873  Hordeum marinum subsp. gussoneanum H. S. Yates 1936-6-17 5710 Humboldt lower nw slope Buck Mountain; South Fork Pk Quad., lower nw slope Buck Mountain 792 Comment
  UC1198711  Horkelia californica Joseph P. Tracy 1930-6-15 8755 Humboldt n Dobbyn Creek; Northern Coast Ranges 152 Comment
  JEPS44551  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  SD113612  Hosackia crassifolia var. crassifolia Darley F. Howe 1962-5-22 3305 Humboldt 4.3 miles east of Orick on Bald Mountain Road 609 Comment
  UC33562 Image available Hosackia denticulata Chesnut and Drew 1888-7-11 Humboldt Jernigan's; ; Jarnigan's, Humboldt Co. Comment
  HSC39777  Hydrocotyle ranunculoides Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  SBBG64581  Hydrocotyle ranunculoides A. Keedy 1988-9-20 13 Humboldt Arcata Salt Marsh Project Comment
  UCD128229  Hydrocotyle ranunculoides Linda M. Barker 1976-8-2 1704 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  JEPS1639  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-25 15538 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  JEPS1642  Hydrophyllum tenuipes W. L. Jepson 1934-5-7 16691 Humboldt Bull Creek Comment
  UC177201  Hydrophyllum tenuipes Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3617 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC24110  Hydrophyllum tenuipes Joseph P. Tracy May 1901 1263 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  UC1239761  Hydrophyllum tenuipes Joseph P. Tracy 1933-6-11 12558 Humboldt Holmes Flat 60 Comment
  CAS-BOT-BC400794  Hypericum anagalloides Doris K. Kildale 1928-7-29 5933 Humboldt Kinman Pond. Bear River Ridge Comment
  JEPS66783  Hypericum anagalloides Lincoln Constance 1934-6-25 922 Humboldt 4 mi. n. Dyverville (and of n. boundary of Humboldt Redwood Park, on Redwood Hwy, Englewood); S. Fork Eel R., Bull Creek Region, Englewood Comment
  HSC57046  Hypericum perforatum Overton, Butler 1979-7-24 9695 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  SD93061  Hypericum perforatum W. Bertsch 1953-7-30 225 Humboldt Highway 101 at Dyerville. 60 Comment
  UC1198399  Hypericum perforatum Joseph P. Tracy 1934-7-2 13290 Humboldt Trinidad 3 Comment
  UC1198401  Hypericum perforatum Joseph P. Tracy 1933-11-12 13117 Humboldt along S. Fork Eel R. Miranda; S. Fork Eel R., Miranda 121 Comment
  UC1198412  Hypericum perforatum Joseph P. Tracy 1926-7-25 7754 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 152 Comment
  HSC27781  Hypericum perforatum J. D. Ackerman, A. M. Montalvo 1973-6-17 57 Humboldt 1 mi. W of Redwood Creek along Hwy. 299 Comment
  UC169053  Hypochaeris glabra Joseph P. Tracy 1912-7-25 3812 Humboldt Kneeland Prairie 762 Comment
  HSC57319  Hypochaeris radicata Griswold, Butler 1979-7-10 6345 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC90684  Hypochaeris radicata Gail Newton 1982-5-1 2488 Humboldt Eureka, Elk River Wildlife Area Comment
  HSC40966  Ilex aquifolium Linda M. Barker 1976-6-14 1594 Humboldt 3 mi. W of Arcata Comment
  POM205521  Iliamna latibracteata F. W. Peirson 1923-7-11 s.n. Humboldt Between Eureka and Crescent City Comment
  HSC63146  Ipomopsis aggregata subsp. aggregata M. A. Baker 1979-6-28 939 Humboldt Jct. of Tish Tang A Tang Creek and trail N of Grogan Hole Comment
  UC4280  Iris douglasiana Harley P. Chandler May 1901 1262 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  UCSB28085  Iris douglasiana Phelps, M. 1972-3-19 Humboldt 1.5 mi. from Garberville; along Old Briceland Rd; 0.5 mi. north of roadside 213 Comment
  HSC13852  Iris douglasiana W. R. Rogers 1966-5-9 305 Humboldt 3 mi. SE of Arcata, Fickle Hill Comment
  HSC89546  Iris douglasiana M. Roantree 1985-5-24 63 Humboldt E side of Trinidad Head Comment
  JEPS540  Iris douglasiana W. L. Jepson 1932-7-29 16442 Humboldt Weatt 91 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
  RSA254791  Iris douglasiana Thomas W. Nelson 1974-5-7 1240 Humboldt Beside the old Kneeland Rd. Comment
  UC702924  Iris douglasiana Alice Eastwood and John Thomas Howell 1937-6-23 4845 Humboldt 5 mi from Kneeland (on road to Yager) Comment
  JEPS86127  Iris macrosiphon Wayne Roderick 1966-5-5 Humboldt ca 5 mi n Bridgeville 609 Comment
  UC275564  Iris purdyi Joseph P. Tracy 1924-7-4 6715 Humboldt Snow Camp; Northern Coast Ranges 1371 Comment
  UC429165  Iris purdyi P. E. Goddard 1906-6 644 Humboldt above Bells (Eel River); Eel River Comment
  NY22146  Iris tenax subsp. klamathensis L. W. Lenz 1953-5-13 18296 Humboldt Wooded hillsides along Klamath River, Orleans Comment
  RSA135930  Iris tenax subsp. klamathensis Lee W. Lenz 1953-5-16 18310 Humboldt 0.25 miles S of Orleans on Klamath River 122 Comment
  JEPS79909  Isatis tinctoria Joseph P. Tracy 1939-4-29 16239 Humboldt Klamath River at mouth of Slate Creek; Klamath River, Slate Creek 121 Comment
  UC1152073  Isolepis carinata Joseph P. Tracy 1948-5-31 17982 Humboldt 1/2 mi ne Garberville (on the road to Harris); ne of Garberville Comment
  CAS-BOT-BC340152  Jaumea carnosa Malcom A. Nobs; S. Galen Smith 1949-8-3 1173 Humboldt Around Fields Landing Comment
  CAS-BOT-BC340159  Jaumea carnosa Marcus E. Jones 1931-7-16 29118 Humboldt Arcata Comment
  CAS-BOT-BC340160  Jaumea carnosa Edward Lee 1934-8-17 1149 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  UC1173657  Jaumea carnosa Joseph P. Tracy 1939-8-6 16399 Humboldt Big Lagoon 6 Comment
  UCR122380  Jaumea carnosa George K. Helmkamp, E. A. Helmkamp 2001-7-8 7004 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  CAS-BOT-BC340153  Jaumea carnosa C. C. Harris; S. K. Harris 1939-8-26 s.n. Humboldt South shore of Humboldt Bay Comment
  SEINET10474757  Jaumea carnosa Mary Susan Taylor 1990-8-22 Taylor 6088 Humboldt Cypress Grove Area, Samoa Peninsula, along strand, Eureka. Comment
  CAS-BOT-BC109922  Juncus Doris Kildale Gillespie 1931-6-7 10654 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  CAS-BOT-BC109923  Juncus L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road. 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
  HSC103408  Juncus bolanderi Ivy Watson 2008-10-5 34 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  UC184214  Juncus bolanderi Joseph P. Tracy 1900-9-3 940 Humboldt Eureka Northern Coast Region 0 Comment
  HSC44317  Juncus bolanderi Thomas W. Nelson, Jane P. Nelson 1977-9-3 3735 Humboldt Logging road to Pine Mtn., E of Pine Mtn. 1463 Comment
  RSA245249  Juncus breweri Tim Baroni 1971-6-26 69 Humboldt Out on the Samoa Peninsula, just opposite the Georgia Pacific pulp mill. Comment
  HSC78252  Juncus bufonius var. bufonius L. P. Janeway, Paul Wilson 1984-5-25 820 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  UC1152110  Juncus covillei Joseph P. Tracy 1934-7-14 13401 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  HSC34706  Juncus covillei Thomas W. Nelson 1974-7-20 1699 Humboldt McKeown Ranch N of Dinsmore, flood plain of Mad River Comment
  CAS-BOT-BC110123  Juncus dudleyi Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  HSC34710  Juncus effusus subsp. pacificus Thomas W. Nelson 1974-7-20 1695 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA15622  Juncus effusus subsp. pacificus Carl B. Wolf 1927-8-30 1260 Humboldt 3 miles S of Thorn Comment
  UC1101013  Juncus ensifolius Malcolm A. Nobs and S. Galen Smith 1949-8-3 1199 Humboldt s outskirts Eureka Comment
  RSA53821  Juncus ensifolius Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek. Klamath River Canyon. Comment
  UC1152094  Juncus ensifolius Joseph P. Tracy 1950-7-16 8980 Humboldt near McKay Camp (close to Trinity County line); South Fork Mountain 1676 Comment
  SD51260  Juncus ensifolius var. ensifolius Darley F. Howe 1961-8-1 Humboldt 9 Miles north of Arcata on #101. Comment
  JEPS121649  Juncus exiguus Jennifer Buck, Danielle Roach 2009-8-19 Humboldt Kerlin Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM06B Comment
  UC1103057  Juncus hesperius J. P. Tracy 1900-8-26 931 Humboldt immediate vicinity Eureka 0 Comment
  UCD141545  Juncus hesperius Linda M. Barker 1976-6-1 1568 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC102072  Juncus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 974 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1152002  Juncus occidentalis Joseph P. Tracy 1930-7-6 8844 Humboldt Kneeland Prairie 762 Comment
  UC184181  Juncus occidentalis Joseph P. Tracy 1912-7-31 3911 Humboldt near Buck Mountain summit; Northern Coast Ranges 1219 Comment
  UC717989  Juncus xiphioides David D. Keck 1944-7-11 5495 Humboldt Cape Mendocino 3 Comment
  HSC32539  Keckiella corymbosa Thomas W. Nelson 1973-8-19 1116 Humboldt McKeown Ranch N of Dinsmore Comment
  NY790325  Keckiella lemmonii J. P. Tracy 1929-8-4 8648 Humboldt Ridge between Bull Creek and Mattole River 762.0 Comment
  UC50518  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5771 Humboldt Trinity Summit Comment
  UC922033  Koeleria macrantha Joseph P. Tracy 1936-8-2 15072 Humboldt French Camp Ridge 1066 Comment
  HSC14215  Lamium purpureum D. E. Anderson 1962-3-18 1945 Humboldt Corner of Hwy. 101 and Hwy. 299 Comment
  UC1223223  Lapsana communis Joseph P. Tracy 1950-8-7 19275 Humboldt 1 mi w of lower end Croghan Hole; Trinity Summit Comment
  RSA46394  Lapsana communis Charles L. Pollard 1946-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  HSC35036  Lasthenia californica Thomas W. Nelson 1975-5-24 1859 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC128624  Lasthenia californica subsp. californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5380 Humboldt Harris Comment
  UC30471  Lasthenia californica subsp. macrantha Bolander Humboldt Comment
  UC169322  Lasthenia glaberrima Joseph P. Tracy 1912-6-9 3690 Humboldt Alton Northern Coast Region, Alton 30 Comment
  JEPS55332  Lathyrus brownii W. L. Jepson 1932-7-30 16455 Humboldt bank of Bull Creek Bull Creek 106 Comment
  HSC15522  Lathyrus littoralis Gary J. Stebbins 1970-4-18 70 Humboldt Along road to Samoa 1.1 mi. S of Mad River slough bridge Comment
  JEPS55275  Lathyrus littoralis unknown 1926-7-29 115 Humboldt Samoa Comment
  UCD106379  Lathyrus littoralis Roman Gankin 1965-8-6 552 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  RSA239724  Lathyrus littoralis Larry E. DeBuhr, Gary D. Wallace 1973-5-22 1152 Humboldt In sand at beach at Big Lagoon. Comment
  UC1222414  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1946-5-19 17534 Humboldt Kneeland Prairie 762 Comment
  HSC73128  Lathyrus polyphyllus M. A. Baker 1980-5-18 1283 Humboldt Near Black Mtn. 1006 Comment
  HSC100520  Lathyrus torreyi Carl C. Marshall Jun 1886 319 Humboldt Trail E of Hoopa. Comment
  UC1222403  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt e of Korbel (on Murphy Ridge beyond the meadows); Bald Mountain, Murphy Ridge Comment
  HSC81920  Lathyrus vestitus subsp. bolanderi Thomas W. Nelson, Jane P. Nelson 1979-7-3 4967 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  CAS-BOT-BC325994  Layia carnosa David D. Keck; J. Clausen 1935-6-16 3381 Humboldt Mouth of Little River. Comment
  UC30591  Layia carnosa J. P. Tracy 1901-4-17 Humboldt Samoa; Humboldt Bay Comment
  CAS-BOT-BC534635  Lemna minor Henry M. Pollard 1956-10-13 2 Humboldt near Orleans Comment
  RSA246941  Leontodon leysseri R. F. Thorne, P. C. Everett 1965-8-8 35234 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  RSA409613  Lepechinia calycina Thekla Mohr 1919-07 3342 Humboldt Eel River. Comment
  UC161582  Lepidium latipes Joseph P. Tracy 1902-6-3 1644 Humboldt near Harris (hill top at Spruce Grove); Northern Coast Ranges, Spruce Grove 914 Comment
  UC492270  Lepidium nitidum Joseph P. Tracy 1932-4-24 9809 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC1199161  Lepidium virginicum Joseph P. Tracy 1916-5-31 4690 Humboldt Holmes Flat, along Eel River from South Fork to Scotia Northern Coast Ranges, Eel River 60 Comment
  UC195426  Lepidium virginicum Joseph P. Tracy 1915-9-12 4670 Humboldt opposite Laribee Creek; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  UC1222651  Lepidium virginicum var. pubescens Joseph P. Tracy 1950-8-20 19317 Humboldt Orleans Comment
  HSC71033  Leptosiphon bicolor Thomas W. Nelson 1977-4-20 3325 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  HSC73540  Leptosiphon bolanderi Gail Newton 1980-7-14 1476 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC74229  Leptosiphon ciliatus M. A. Baker 1980-7-15 2958 Humboldt Near Whiting Ridge. 1341 Comment
  OBI11411  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt Near Harris (2 miles north) 610 Comment
  CAS-BOT-BC341823  Lessingia nemaclada Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  CAS-BOT-BC341829  Lessingia nemaclada Harley P. Chandler 1901-6-1 1503 Humboldt North Coast Ranges. Klamath River 426 Comment
  UC249851  Lessingia nemaclada Joseph P. Tracy 1923-9-10 6546 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC34189  Lessingia nemaclada Harley P. Chandler June, 1901 1503 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  CAS-BOT-BC341822  Lessingia nemaclada James T. Vale 1979-7-26 s.n. Humboldt Elk Creek Comment
  HSC71378  Leucanthemum vulgare J. P. Smith 1971-10-6 4949 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC67896  Leucanthemum vulgare J. P. Smith 1973-5-26 6806 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UCD134127  Leucanthemum vulgare Lincoln Constance 1934-6-6 827 Humboldt Bull Creek Region, South Fork Eel Rive, Fire Trail, Dyerville to Horse Prairie and return. Comment
  CAS-BOT-BC444058  Lewisia cotyledon var. howellii Lincoln Constance; Reed C. Rollins 1942-5-12 2885 Humboldt Klamath-Siskiyou Region. Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  POM266015  Lewisia cotyledon var. howellii Lincoln Constance, Reed C. Rollins 1942-5-12 s.n. Humboldt Mouth of Bluff Creek, 6 miles NE of Weitchpec. 152 Comment
  HSC48392  Lewisia leeana Brad Klipfel 1973-6-10 152 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1100250  Leymus X vancouverensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1204 Humboldt ca 2 mi n Eureka (salt marshes bordering bay); Humboldt Bay Comment
  RSA246911  Leymus mollis subsp. mollis R. F. Thorne, P. Everett 1965-8-5 35159 Humboldt Samoa Dunes 3 Comment
  UC34076  Leymus mollis subsp. mollis J. P. Tracy 1901-8-7 1267 Humboldt ocean beach opp. Eureka; Samoa Comment
  UC573707  Leymus mollis subsp. mollis H. S. Yates 1936-6-18 5727 Humboldt near mouth of Little River; Eureka Quadrangle 4 Comment
  UCD86624  Leymus triticoides V. L. Baker 1920-8-1 s.n. Humboldt Grizzly Bluff. Comment
  POM313157  Leymus vancouverensis Malcolm A. Nobs, S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, ca. 2 miles north of Eureka Comment
  JEPS17504  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  UC1222812  Ligusticum apiifolium Joseph P. Tracy 1950-9-10 19354 Humboldt Bear R. Ridge 609 Comment
  HSC56332  Ligusticum grayi Overton, Butler 1979-8-2 12702 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SEINET12047013  Lilium columbianum F. H. Utech 1978-1 78 -260 Humboldt ca 2.5 km S of Del Norte/Humboldt County line on US 101 Comment
  CAS-BOT-BC130641  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  CAS-BOT-BC130644  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  CAS-BOT-BC130686  Lilium occidentale Doris K. Kildale 1925-6-30 1337 Humboldt On road to Humboldt Country Club 7 mi from Eureka Comment
  CAS-BOT-BC130687  Lilium occidentale Doris K. Kildale 1925-7-1 1338 Humboldt Near Bayside Comment
  HSC33664  Lilium occidentale Doris K. Niles, Thomas W. Nelson 1974-6-20 Humboldt Wiggins Ranch, W of garbage dump Comment
  JEPS79921  Lilium occidentale Joseph P. Tracy 1918-7-21 5078 Humboldt around Humboldt Bay Humboldt Hill; Northern Coast Ranges, Humboldt Bay, Humboldt Hill 182 Comment
  CAS-BOT-BC130728  Lilium pardalinum Albert Vollmer 1949-7-1 2 Humboldt On Bald Mountain Comment
  UCSB698  Lilium pardalinum Phillips, Priscilla 1958-6-7 Humboldt On Highway 101, 14.1 mi. south of Prairie Creek Redwoods State Park (north of Trinidad) Comment
  HSC65208  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau 1979-7-17 676 Humboldt Near Clear Lake 1494 Comment
  UC1198227  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1946-6-23 17593 Humboldt Kneeland Prairie; near Dan McBride place 762 Comment
  UC1222535  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1950-7-1 18951 Humboldt near Friday Camp ((to Grouse Mt.)); Friday Ridge 1219 Comment
  UC1197417  Limnanthes douglasii Joseph P. Tracy 1946-5-19 17536 Humboldt Kneeland Prairie 762 Comment
  HSC15789  Limnanthes douglasii Francis Winter 1960-5-7 Humboldt 3 mi. NE of Redwood Creek Ranch. 610 Comment
  HSC23110  Limnanthes douglasii Norman Dennis 1965-6-11 113 Humboldt 1/4 mi. S and 1 mi. E of the junction of Barry Ridge Rd. and the Eureka-Bridgeville county road, along Ashfield Ridge Rd. About 5 mi. SE of Kneeland 793 Comment
  HSC28137  Limnanthes douglasii J. D. Ackerman 1973-5-28 49 Humboldt Hwy. 299, Berry Summit. Comment
  HSC45598  Limnanthes douglasii subsp. nivea Diane L. Reed 1978-5-27 131 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  RSA15573  Limonium californicum Carl B. Wolf 1927-8-28 1187 Humboldt Eureka Bay on road to Arcata Comment
  UC154019  Limonium californicum Joseph P. Tracy 1901-8-7 1254 Humboldt Samoa Northern Coast Region, Region about Humboldt Bay (salt marsh) 0 Comment
  UC23368  Linanthus androsaceus C. C. Marshall 1888-1 Humboldt in lower Humbolt County Comment
  JEPS58246  Linanthus bicolor Lincoln Constance 1934-6-4 816 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region Comment
  UC60871  Linanthus bicolor Harley P. Chandler Jun 1901 1417 Humboldt Klamath River North Coast Ranges 243 Comment
  UC1198538  Linanthus harknessii Harold E. Parks and Joseph P. Tracy 1934-6-27 11086 Humboldt Grouse Mt. 1432 Comment
  UC1197836  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1936-8-2 15063 Humboldt French Camp Ridge 1066 Comment
  UC902241  Linaria vulgaris Joseph P. Tracy 1941-9-1 16996 Humboldt Blue Lake 30 Comment
  CDA6370  Linaria vulgaris T. C. Fuller 1968-7-3 17445 Humboldt Northwest corner of overpass of Highway 101 freeway at Tompkins Hill Road, 1 mile south of Fields Landing. 0 Comment
  CAS-BOT-BC416392  Linnaea borealis subsp. longiflora H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  HSC34281  Linnaea borealis subsp. longiflora K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  SBBG7338  Linnaea borealis var. longiflora K. K. Muller 1954-6-21 634 Humboldt Olson Crk, 2 mi ENE of Mad River Comment
  UC1222491  Linnaea borealis var. longiflora Joseph P. Tracy 1950-6-21 18857 Humboldt along Trinity Highway e of crossing Cedar Creek (Willow Creek Canyon); , e of crossing of Cedar Creek 762 Comment
  HSC59444  Linum bienne Kenneth Clark 1979-4-18 110 Humboldt 1 block E on California Ave., in Arcata. Comment
  SEINET12185780  Linum micranthum J. P. Tracy 1950-1 18994 Humboldt on the Albee Rd., Buck Mountain, high meadow on W side, 3 mi S of Burr Valley 1158 Comment
  UC1103033  Listera caurina Joseph P. Tracy 1932-7-20 10740 Humboldt Forks of Tish-Tang-a-tang Creek Trinity Summit 1219 Comment
  JEPS8444  Listera caurina Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3415 Humboldt ridge between Mad River and Redwood Creek; Snow Camp, Bald Mountain ridge 1432 Comment
  UC666982  Listera caurina Joseph P. Tracy 1930-7-17 9016 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC27779  Listera convallarioides J. D. Ackerman 1973-8-19 113 Humboldt East edge of Mill Creek Lake, E of Hoopa Comment
  CAS-BOT-BC136461  Listera cordata Greg de Nevers 2001-4-17 12250 Humboldt Field redacted by CAS, contact the data manager for more information 91 Comment
  UC303141  Listera cordata Joseph P. Tracy 1925-4-5 6956 Humboldt Kneeland Road crossing Northern Coast Ranges, Lawrence Creek 609 Comment
  UC1196365  Lithocarpus densiflorus Joseph P. Tracy 1948-8-15 18137 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  CAS-BOT-BC36106  Lithocarpus densiflorus var. densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt Near Boynton Prairie Comment
  UC1225786  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-8-15 18135 Humboldt 2 mi e Grove's Summit; Trinity Summit 1524 Comment
  HSC32859  Lithophragma affine Thomas W. Nelson, James Nelson 1973-5-28 941 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1196498  Lithophragma affine Joseph P. Tracy 1921-4-24 5433 Humboldt Phillipsville Flat Northern Coast Ranges, South Fork of Eel River (South Fork of Eel River) 91 Comment
  UC667095  Lithophragma affine Joseph P. Tracy 1933-5-14 12174 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC98097  Lithophragma campanulatum Cara Witte, Michael Scott 2007-6-22 344 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1494 Comment
  UC1225759  Lobularia maritima Joseph P. Tracy 1946-6-2 17556 Humboldt near Somoa (on Humboldt Bay); Humboldt Bay 6 Comment
  UCD115917  Lobularia maritima Joseph P. Tracy 1946-6-2 17556 Humboldt Garden escape, sand dunes, near Samoa, on Humboldt Bay. 6 Comment
  HSC66291  Lomatium ciliolatum var. ciliolatum M. A. Baker 1980-6-8 1896 Humboldt Near Buck Flat. 1554 Comment
  UC154252  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy July, 1908 2890 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt & Trinity Co.'s); Northern Coast Ranges, Humboldt & Trinity Co.'s 914 Comment
  HSC74247  Lomatium macrocarpum M. A. Baker 1980-7-11 2803 Humboldt Near Red Mtn. 1433 Comment
  HSC74284  Lomatium macrocarpum M. A. Baker 1980-7-11 2784 Humboldt Near Red Mtn. 1341 Comment
  HSC97232  Lomatium macrocarpum Kiera Freeman, Heather J. Perry 2007-6-4 1 Humboldt Cold Springs Camp, 8.0 mi. S of Hwy. 299 on NF1 1372 Comment
  UC1222608  Lomatium macrocarpum Joseph P. Tracy 1951-6-26 19574 Humboldt vicinity of Twin Lakes Comment
  HSC42875  Lomatium tracyi Barbara Kelly 1977-7-16 537 Humboldt 1/4 mi. in from Horse Mtn. Road, 1/2 mi. below turnoff to summit, near end of unused gravel road Comment
  UC183624  Lomatium utriculatum Joseph P. Tracy 1912-6-9 3671 Humboldt Northern Coast Region, Alton 30 Comment
  UC906652  Lomatium utriculatum Joseph P. Tracy 1947-6-8 17707 Humboldt 5 mi. e. Carlotta (open flat by old Strong's District School House) 45 Comment
  HSC58307  Lonicera conjugialis Overton, Butler 1979-8-2 12589 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  CAS-BOT-BC240469  Lonicera hispidula M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale, 8 miles N. of Garberville Comment
  CAS-BOT-BC240476  Lonicera hispidula Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  CAS-BOT-BC240477  Lonicera hispidula Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  UCSB25050  Lonicera hispidula Keefe, Joseph 1967-7-8 Humboldt Bank of Ell River, Miranda turnoff, 12.4 miles north of Garberville on U.S. Highway 101 170 Comment
  HSC79550  Lonicera hispidula var. vacillans Kenneth Clark 1980-6-14 669 Humboldt On western slope above Dead Man's Gulch. 145 Comment
  SEINET5222458  Lonicera involucrata Unknown 2002-8-22 85 Humboldt McKinleyville, along Fischer Road just N of the Mad River Comment
  CAS-BOT-BC241488  Lonicera involucrata var. ledebourii Ashley C. Browne 1938-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  CHSC11388  Lonicera involucrata var. ledebourii Lowell Ahart 1968-5-31 Humboldt Patrick's Point State Park. 30 Comment
  CHSC31282  Lonicera involucrata var. ledebourii Mark Stopher 1980-4-11 47 Humboldt Occasional in brushy areas along Elk River. 1 Comment
  HSC40297  Lonicera involucrata var. ledebourii Linda M. Barker 1976-4-30 1400 Humboldt 3 mi. W of Arcata Comment
  HSC62683  Lonicera involucrata var. ledebourii Michelle Stevens 1979-4-21 54 Humboldt Ponds across from Clam Beach. 0 Comment
  RSA455682  Lonicera involucrata var. ledebourii E. A. Purer 1932-7-27 15978 Humboldt Near Samoa. Comment
  UC726016  Lotus aboriginus A. A. Heller 1937-6-8 15897 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge) Comment
  UC1223438  Lotus corniculatus Joseph P. Tracy 1937-8-22 15677 Humboldt near Loleta (on Eel River bottom); Eel River Comment
  SEINET3696599 Image available Lotus douglasii Joseph P. Tracy 1911-7-6 3358 Humboldt Road between Three Creeks and mouth of Willow Creek 762 Comment
  UC1223424  Lotus pinnatus Joseph P. Tracy 1942-6-15 17134 Humboldt Englewood Prairie Comment
  UC168985  Lotus purshianus var. purshianus Joseph P. Tracy 1912-7-24 3807 Humboldt Eureka Northern Coast Region 0 Comment
  UC1223277  Lupinus adsurgens Joseph P. Tracy 1933-7-26 12912 Humboldt Grouse Mountain, top of mountain 1630 Comment
  HSC99728  Lupinus albicaulis M. A. Baker 1979-6-7 797 Humboldt Along road to Telescope Peak next to stream between Telescope Peak and Snow Mtn. 915 Comment
  RSA406972  Lupinus albicaulis var. albicaulis H. M. Pollard 1947-8-9 s.n. Humboldt Roadside west of Orleans Comment
  HSC96261  Lupinus albifrons var. collinus Kaylea Eickhoff, Cara M. Witte 2005-6-24 15 Humboldt 13 mi. S of Hwy. 299 on NF1 1375 Comment
  HSC35758  Lupinus arboreus M. J. Athey 1970-11-12 3 Humboldt Along Hwy., 1 mi. S of Westhaven turnoff, Trinidad. Comment
  SEINET10452624  Lupinus arboreus Mary Susan Taylor 1990-8-22 Taylor 6070 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC14800  Lupinus bicolor Eugene Andreuccetti 1964-4-26 20 Humboldt 1 mi. N of Garberville on Hwy. 101 Comment
  CAS-BOT-BC8425  Lupinus constancei T. W. Nelson; J. P. Nelson 1982-7-9 7079 Humboldt Blocksburg Quadrangle. Mt. Lassic (Signal Peak) and saddle to east. Comment
  HSC75464  Lupinus latifolius J. O. Sawyer 1980-7-18 3613 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. 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
  UC146917  Lupinus littoralis Harley P. Chandler May, 1901 1147 Humboldt Samoa North Coast Ranges, Humboldt Bay (Humboldt Bay) 3 Comment
  UC156999  Lupinus luteolus Joseph P. Tracy 1908-6 2696 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC161546 Image available Lupinus microcarpus Joseph P. Tracy 1911-7-4 3280 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River, Willow Creek; Willow Creek, Humboldt Co. 152 Comment
  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
  HSC63182  Lupinus onustus M. A. Baker 1979-7-10 1024 Humboldt Above Bluff Creek Comment
  UC419035  Lupinus polyphyllus var. polyphyllus H. E. and S. T. Parks May 1930 737 Humboldt vicinity Alton; vicinity of Alton Comment
  SEINET12165817  Lupinus propinquus J. T. Vale 1988-1 s.n. Humboldt nr Petrolia Comment
  HSC2118  Lupinus succulentus J. Wendell Howe Humboldt Cape Mendocino Comment
  HSC100503  Luzula Carl C. Marshall May 1886 219 Humboldt Gulch E of Arcata. Comment
  HSC56946  Luzula comosa Overton, Butler 1979-7-23 9436 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC64637  Luzula comosa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  HSC97487  Luzula comosa Cara Witte 2007-5-23 109 Humboldt Near Grouse Mountain. Along 4N32. Approximately 0.5 miles south of intersection with 5N04 and 4N32E. 1425 Comment
  HSC98641  Luzula comosa Cara Witte 2007-6-1 176 Humboldt Along Forest Service 5N10. 1.75 miles east of intersection with National Forest 1. 1365 Comment
  CAS-BOT-BC436746  Luzula comosa var. comosa Harley P. Chandler 1901-5-1 1159 Humboldt North Coast Ranges: Humboldt Bay 30 Comment
  CHSC117678  Luzula macrantha Peter F. Zika 2011-7-3 25500 Humboldt Titlow Hill Road, near junction with Forest Road 6N36, 1 air mile S of Horse Mountain, Outer North Coast Ranges. 1410 Comment
  UC249749  Luzula macrantha Joseph P. Tracy 1923-6-3 6257 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  HSC99587  Luzula parviflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 252 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1152089  Luzula parviflora Joseph P. Tracy 1951-6-26 19545 Humboldt woods at Snow Camp; woods at Snow Camp Comment
  RSA21016  Lysichiton americanus Carl B. Wolf 1937-9-11 9325 Humboldt Redwood Highway, 3 miles N of Orick at Davison s Ranch on Prairie Creek. 61 Comment
  SEINET11770339  Lysichiton americanus F. H. Utech 1986-1 86 -416 Humboldt between Capetown & Ferndale along Mattole Creek, SW slope of Bear River Ridge 100 Comment
  JEPS93178  Lythrum hyssopifolia Margriet Wetherwax and Kevin Downing 1993-8-9 2457 Humboldt just n of Eureka (on e side of Humboldt Bay, s side of Eureka Slough, near Bayside Road and Myrtle, just past Pigeon Point); Humboldt Bay, Eureka Slough 5 Comment
  RSA0015876  Lythrum hyssopifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9203 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC97613  Madia elegans Cara Witte 2007-6-4 180 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  CAS-BOT-BC342799  Madia elegans Richard Snow 1957-8-31 306 Humboldt 4 miles north of Garberville at Dean Creek Lodge Comment
  UC129392  Madia elegans Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5681 Humboldt Hoops Mt. Hoopa Mt. Comment
  POM161463  Madia elegans subsp. elegans Joseph P. Tracy 2683 Humboldt Hillside near bridge across Little Va Duzen, northwest slope of Buck Mountain 762 Comment
  RSA275381  Madia elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1976-7-1 2894 Humboldt Growing on serpentine ridge north of Bear Creek 1463 Comment
  HSC31215  Madia exigua D. E. Anderson 1972-6-20 5733 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC166101  Madia exigua Joseph P. Tracy 1908-6 2815 Humboldt opposite Buck Mountain (Valley of the Van Duzen River); Northern Coast Ranges 762 Comment
  CAS-BOT-BC343018  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  CAS-BOT-BC343026  Madia gracilis Doris K. Kildale 1928-6-24 7076 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC343027  Madia gracilis Doris K. Kildale 1928-6-24 5282 Humboldt Horse Mountain 914 Comment
  UC175981  Madia gracilis Joseph P. Tracy 1908-6 2796 Humboldt Valley of Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  RSA47169  Madia sativa Doris K. Kildale 1927-6-25 s.n. Humboldt Shelter Cove. Comment
  RSA554592  Mahonia aquifolium W. Wisura 1993-5-9 4910 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  CAS-BOT-BC508502  Maianthemum dilatatum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  CAS-BOT-BC508503  Maianthemum dilatatum Wayne Roderick 1967-7-22 s.n. Humboldt Trinidad 30 Comment
  CAS-BOT-BC508509  Maianthemum dilatatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  POM87668  Maianthemum dilatatum Le Roy Abrams, Rimo C. Bacigalupi 8300 Humboldt Near northern county line Comment
  RSA244984  Maianthemum dilatatum M. N. Gold 1966-5-15 25 Humboldt Dry Lagoon State Park, 13 miles north of Trinidad Comment
  HSC54225  Maianthemum racemosum subsp. amplexicaule Griswold, Butler 1979-7-12 7290 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  CAS-BOT-BC347414  Malacothrix floccifera L. R. Abrams 1916-7-11 6063 Humboldt Mouth of Grizzly Creek between Bridgeville and Fortuna on Van Duzon [Duzen] River Comment
  UC535702  Malacothrix floccifera Eleanor Armstrong 1934-8-24 1191 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC347408  Malacothrix floccifera Don Hagar 1957-6-25 89 a Humboldt Brush Mountain, 3.5 miles south-southwest of Willow Creek 792 Comment
  CAS-BOT-BC347411  Malacothrix floccifera Joseph P. Tracy 1911-7-4 3278 Humboldt Northern Coast Ranges. Along Willow Creek. (Tributary of Trinity River, Humboldt County) near its mouth 152 Comment
  HSC100569  Malva nicaeensis Carl C. Marshall Sep 1887 493 Humboldt Near lannery, Arcata and Salmon Creek. Comment
  SEINET12011533  Marah fabacea E. A. York 1990-1-10 2661 Humboldt USGS Redwood Field Station, Arcata Comment
  CHSC46890  Marah oregana R. A. Schlising 1963-6-4 2584 Humboldt South of Orick, along Hwy 101 at Big Lagoon. Comment
  HSC7032  Marah oregana G. N. Bos 1965-5-15 268 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  UCD106774  Medicago arabica W. Williams 1951-5-11 s.n. Humboldt location unknown. Comment
  UC162809  Medicago polymorpha J. P. Tracy 1909-8-15 3076 Humboldt Immediate vicinity of Eureka 0 Comment
  BLMAR216  Melica aristata Jennifer Anthony-Wheeler 1996-7-9 216 Humboldt Pilot ridge., drwng in dry open area under coniferous forest 1341 Comment
  HSC47607  Melica californica J. P. Smith 1977-4-23 9023 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC526914  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD87130  Melica californica August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Graberville. Comment
  HSC98743  Melica geyeri Cara Witte 2007-7-20 561 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  CAS-BOT-BC281325  Melica harfordii W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  HSC64160  Melica harfordii J. O. Sawyer, K. A. Sawyer 1979-6-24 3401 Humboldt Slopes alongside Aikens Creek. 366 Comment
  POM126121  Melica harfordii Joseph P. Tracy 1923-5-30 6243 Humboldt Dyerville, along Eel River from South Fork to Scotia. 61 Comment
  UC552699  Melica harfordii Joseph P. Tracy 1935-7-14 14079 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  HSC40311  Melica stricta Thomas W. Nelson, Jane P. Nelson 1976-7-1 2928 Humboldt Along W side of Lassic Peak (Signal Peak). 1738 Comment
  RSA183536  Melica subulata H. S. Logsdon 1964-5-10 6 Humboldt 4.0 miles N.E. of Orick at Boye's Prairie Comment
  UCD88673  Melica subulata R. Tofsrud 1949-7-1 s.n. Humboldt On road from Scotia to Capetown. Comment
  UC1222472  Melilotus albus Joseph P. Tracy 1949-7-7 18336 Humboldt Blue Slide Van Duzen River 91 Comment
  SEINET200815  Mentzelia dispersa Joseph P. Tracy 1908-7-30 2843 Humboldt Northwest slope of Buck Mountain 1219 Comment
  HSC25986  Mentzelia laevicaulis Thomas W. Nelson 1970-9-3 221 Humboldt Mad River. Comment
  RSA53803  Mentzelia laevicaulis H. M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon. Comment
  JEPS80899  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1571 B Humboldt Prairie Creek area, Mile 125.00, US Hwy 101 Prairie Creek area; , Mile 125.00, US Hwy 101 Comment
  UC1934548  Menziesia ferruginea subsp. ferruginea T. C. Wells & W. J. Crins 1986-7-29 636 Humboldt Redwood National Park, on Hwy. 101 pullout neat mile 130.74 marker 30 Comment
  HSC38098  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1976-5-30 2621 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1223200  Microseris douglasii subsp. douglasii Joseph P. Tracy 1948-6-13 18057 Humboldt 3 mi w Harris Comment
  UC176457  Microseris laciniata subsp. laciniata Joseph P. Tracy 1912-7-21 3770 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC204745  Microseris laciniata subsp. laciniata Joseph P. Tracy 1918-7-3 4997 Humboldt Shelter Cove Northern Coast Ranges, Shelter Cove 15 Comment
  HSC44540  Microseris nutans Brad Klipfel 1973-7-15 158 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74440  Microseris nutans M. A. Baker 1980-6-28 2478 Humboldt Near Mad River Buttes 1445 Comment
  UC582440  Microseris nutans Joseph P. Tracy 1935-7-27 14307 Humboldt McKay Prairie Trinity Summit 1584 Comment
  HSC40549  Microsteris gracilis Thomas W. Nelson, Jane P. Nelson 1976-5-23 2519 Humboldt SW facing slopes 1666 Comment
  HSC98700  Mimulus alsinoides Cara Witte 2007-5-22 82 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  HSC20645  Mimulus aurantiacus var. aurantiacus Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC22023  Mimulus aurantiacus var. aurantiacus Thomas W. Nelson 1970-10-17 239 Humboldt Mouth of Prairie Creek Comment
  HSC102505  Mimulus breweri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1490 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC39618  Mimulus breweri Thomas W. Nelson, Jane P. Nelson 1976-6-15 2722 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC73737  Mimulus breweri M. A. Baker 1980-7-22 3092 Humboldt Near Grogan Hole. 1676 Comment
  UC582605  Mimulus breweri Joseph P. Tracy 1932-7-10 10375 1/2 Humboldt Trinity Summit 1584 Comment
  HSC40847  Mimulus breweri Thomas W. Nelson 1976-7-9 3003 Humboldt W side of ridge S of E peak of Mount Lassic group 1524 Comment
  RSA80079  Mimulus dentatus F. W. Peirson 1926-7-13 7055 Humboldt On south side of Mad River, near Blue Lake. Comment
  JEPS10484  Mimulus guttatus Joseph P. Tracy 1933-5-20 12252 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  HSC20754  Mimulus guttatus D. E. Anderson 1963-5-18 2442 Humboldt 1.4 mi. W of Berry Summit Comment
  HSC95361  Mimulus guttatus Andrea Pickart 2002-8-7 198 Humboldt Arcata Bottoms; Along Lanphere Rd. 0 Comment
  RSA167241  Mimulus guttatus Joseph P. Tracy 1950-6-8 18745 Humboldt Near Capetown. Cape Ridge. One mile east of Cape Mendocino. 152 Comment
  UC1222801  Mimulus inodorus Joseph P. Tracy 1950-8-8 19283 Humboldt Croghan Hole Trinity Summit 1676 Comment
  UC169096  Mimulus inodorus Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5500 Humboldt between Camp Grant and Pepperwood; North Coast Ranges Comment
  UC41883  Mimulus kelloggii Harley P. Chandler June 1901 1480 Humboldt Klamath River North Coast Ranges 426 Comment
  UC1196796  Mimulus layneae Joseph P. Tracy 1939-7-23 16531 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC56068  Mimulus moschatus G. L. Clifton, Griswold 1979-7-31 11734 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC75461  Mimulus primuloides J. O. Sawyer 1980-7-18 3610 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC183621  Minuartia californica Joseph P. Tracy 1913-5-4 4068 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  POM208986  Minuartia douglasii Lincoln Constance 1934-5-29 732 Humboldt Lookout Point, Look Prairie; Bull Creek watershed; Humboldt Redwood Park. 381 Comment
  UC1103535  Minuartia pusilla Joseph P. Tracy 1904-4-24 2030 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  UC902075  Mitella caulescens Joseph P. Tracy 1949-6-25 18348 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1198869  Mitella diversifolia Joseph P. Tracy 1949-7-19 18384 Humboldt Grouse Mountain 1524 Comment
  HSC71160  Mitella diversifolia Thomas W. Nelson 1977-6-15 3422 Humboldt Along USFS rd connecting FS 6N01 to 5N10, just N of Clear Lake 1372 Comment
  UC667082  Mitella ovalis Joseph P. Tracy 1933-5-14 12183 Humboldt along Trinity Highway Willow Creek Canyon 365 Comment
  UC492220  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC55106  Moehringia macrophylla G. L. Clifton 1979-7-31 11846 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC74566  Moehringia macrophylla M. A. Baker 1980-5-17 1278 Humboldt Near Le Perron Peak 1066 Comment
  UC161044  Moehringia macrophylla Joseph P. Tracy 1908-6-8 2631 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1191371  Mollugo verticillata Malcolm A. Nobs, S. Galen Smith 1949-8-11 1339 Humboldt eastern shore of Stone Lagoon; Stone Lagoo Comment
  HSC45434  Monardella odoratissima subsp. odoratissima Thomas W. Nelson, Jane P. Nelson 1978-7-2 4398 Humboldt Along FS 2S08 near Pine Mountain 1463 Comment
  HSC57122  Monardella odoratissima subsp. pallida Walter Overton, Marvin Butler 1979-7-25 9870 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC58044  Monardella odoratissima subsp. pallida Gilbert Muth 1979-8-1 11900 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC577345  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain, near McKay Camp; Northern Coast Ranges 1676 Comment
  SEINET4173666 Image available Monardella villosa var. glabella Joseph P. Tracy 1946-7-21 17619 Humboldt Blue Slide, on Van Duzen River 91 Comment
  SEINET3000074 Image available Montia chamissoi Joseph P. Tracy 1932-7-10 10378 Humboldt Trinity Summit, open places at Corral Prairie Comment
  HSC55167  Montia parvifolia Gilbert Muth 1979-8-1 12160 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CDA36322  Muehlenbeckia complexa R. Robison 2011-6-3 Humboldt Trinidad State Beach, across road from Humboldt State Marine Research Center. 0 Comment
  HSC10395  Muhlenbergia filiformis H. E. Parks, J. P. Tracy 1934-6-27 11083 Humboldt Grouse Mtn. Comment
  UC526747  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC12417  Myosotis sylvatica D. Santana 1970-11-15 115 Humboldt Near Fickle Hill Rd. and 7th St. Comment
  HSC3722  Myosotis sylvatica R. F. Good 1962-5-23 6 Humboldt Surrounding Arcata 60 Comment
  JEPS70791  Myosotis verna Joseph P. Tracy 1937-5-17 15297 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  RSA46886  Myrica californica Doris K. Kildale 1926-3-27 1551 Humboldt Big Lagoon. Comment
  RSA461902  Myrica californica H. E. McMinn 1931-6-28 2456 Humboldt Orick to Requa Comment
  SEINET6671232 Image available Myrica californica W. C. Muenscher, M. W. Muencher 1939-1 15081 Humboldt Near Creck Comment
  UC1198597  Navarretia divaricata Joseph P. Tracy 1926-6-27 7689 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  UC133641  Navarretia divaricata subsp. vividior Joseph P. Tracy 1906-7-4 2524 Humboldt near Hydesville (near mouth of Yager Creek); Northern Coast Region 60 Comment
  JEPS70319  Navarretia intertexta Joseph P. Tracy 1898-7-14 91 Humboldt near Hydesville Comment
  RSA43882  Navarretia intertexta H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  JEPS70349  Navarretia intertexta Milo S. Baker 1923-7-19 26 Humboldt Wilders (= Carlotta) Wilders Comment
  UC1222713  Navarretia intertexta subsp. intertexta Joseph P. Tracy 1950-6-25 18899 Humboldt 3 mi s Burr Valley (near the Sprosten Place, on the road to the Albee Place) Comment
  UC133716  Navarretia pubescens Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5461 Humboldt Fruitland North Coast Ranges Comment
  UC146171  Navarretia squarrosa J. P. Tracy 1904-7-31 2135 Humboldt immediate vicinity Eureka 0 Comment
  UC52442  Navarretia squarrosa J. P. Tracy 1903-8-9 1932 Humboldt immediate vicinity Eureka 0 Comment
  JEPS70471  Navarretia squarrosa Joseph P. Tracy 1921-7-23 5857 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  UCD39801  Navarretia tagetina Joseph P. Tracy 1942-7-18 17289 Humboldt Garberville. 152 Comment
  UC1245392  Nemophila menziesii Joseph T. Gregory 1933-6-13 260 Humboldt summit Bear's-Hoopa Road 1066 Comment
  UC1103812  Nemophila pedunculata Joseph P. Tracy 1923-2-25 6147 Humboldt Cummings Creek Northern Coast Ranges, , at Cummings Creek (Carlotta) 60 Comment
  HSC64816  Noccaea fendleri subsp. glauca J. P. Smith, J. O. Sawyer 1976-5-2 8632 Humboldt Redwood Creek-Hoopa Rd., 0.6 mi. W of its junction with Loop Rd. in Hoopa Reservation 122 Comment
  HSC93914  Noccaea fendleri subsp. glauca D. K. Imper Apr 1996 Humboldt W side of Horse Mtn., near hairpin in road, 1 mi. before junction 1067 Comment
  POM266039  Noccaea fendleri subsp. glauca Lincoln Constance, Reed C. Rollins 1942-5-12 2887 Humboldt Klamath River, 7 miles NE of Weitchpec. 122 Comment
  HSC22510  Notholithocarpus densiflorus var. densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland 732 Comment
  OBI36374  Notholithocarpus densiflorus var. densiflorus David J. Keil 1983-7-1 17266 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UC275320  Nuphar lutea subsp. polysepala Joseph P. Tracy 1923-6-27 6385 Humboldt Trinity River Valley near the South Fork, Lack Pond Lack Pond; Northern Coast Ranges, Trinity River Valley, Lack Pond 182 Comment
  HSC77344  Oemleria cerasiformis L. P. Janeway 1983-4-16 231 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  RSA782436  Oemleria cerasiformis R. W. Spjut, Paul Burchstead 2008-6-14 16347 Humboldt North Coast Ranges. Old Hwy. along west side of Hwy. 101 between Loleta and Fortuna 25 Comment
  UC1198789  Oemleria cerasiformis Joseph P. Tracy 1933-3-26 10946 Humboldt hills at n end Big Lagoon 60 Comment
  HSC97444  Oenanthe sarmentosa Ivy Watson 2008-9-28 27 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  UC314582  Oenanthe sarmentosa Joseph P. Tracy 1924-9-28 6910 Humboldt Centerville Northern Coast Ranges, Centerville 6 Comment
  HSC16524  Oenothera glazioviana David K. Smith 1968-11-20 67 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  UC1199306  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1932-7-13 10516 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1197447  Orobanche californica subsp. californica Joseph P. Tracy 1939-8-6 16398 Humboldt Big Lagoon. Comment
  JEPS10821  Orobanche fasciculata Lincoln Constance 1934-5-29 741 Humboldt Bull Creek Region. South Fork Eel River. Upper Look Prairie, just above Lookout Point. Comment
  HSC100380  Orobanche uniflora J. McRae 2010-6-23 Humboldt Swim Ridge (Black Rock Mountain West), off Ruth Rd. (CR 504) and F.S. Rd. 27N02. 1329 Comment
  HSC48820  Orogenia fusiformis Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 34 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC1197580  Orthilia secunda Joseph P. Tracy 1934-8-29 13626 Humboldt South Fork Mountain near McKay Camp 1676 Comment
  HSC100939  Orthocarpus attenuatus Miss Handy Jun 1886 40 Humboldt Maple Cr. Comment
  HSC102044  Orthocarpus imbricatus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 947 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC34279  Orthocarpus imbricatus K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  UCD20405  Orthocarpus imbricatus Donald C. Hagar 1957-8-6 207 Humboldt 10 miles ENE of Hoopa, Jackson Hole. 1645 Comment
  HSC76401  Osmorhiza berteroi Denis Kearns 1981-7-23 388 Humboldt Near Whiteys Peak 732 Comment
  HSC56091  Osmorhiza occidentalis G. L. Clifton, Terry Griswold 1979-7-31 11784 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC16722  Oxalis articulata subsp. rubra N. D. Dennis 1965-4-4 6 Humboldt Corner of F and 9th street, in Eureka Comment
  HSC16698  Oxalis corniculata D. E. Anderson 1963-5-25 2486 Humboldt 2-3 mi. N of Capetown Comment
  HSC44294  Oxalis oregana J. Walker 1977-4-23 7 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  SEINET3347650 Image available Oxalis oregana Joseph P. Tracy 1918-5-28 4940 Humboldt High Prairie Creek, east of Bald Mt. Comment
  UC1103420  Oxalis oregana Joseph P. Tracy 1923-5-13 6198 Humboldt near Strong's Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  UCSB7499  Oxalis oregana Phillips, Priscilla 1958-6-7 Humboldt Near entrance to Prairie Creek Redwood Park, north of Orick Comment
  UC502973  Oxalis pes-caprae Joseph P. Tracy 1927-3-23 7845 Humboldt Eureka Northern Coast Ranges Comment
  UC302046  Oxalis trilliifolia Joseph P. Tracy 1926-5-22 7499 Humboldt Prairie Creek Northern Coast Ranges Comment
  UC1103780  Panicum acuminatum var. acuminatum Joseph P. Tracy 1923-6-17 6265 Humboldt Dows Prairie; Northern Coast Ranges, Dows Prairie 60 Comment
  HSC10489  Panicum acuminatum var. fasciculatum J. P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek. Comment
  UC1103771  Panicum capillare Joseph P. Tracy 1934-8-14 13580 Humboldt 1 mi above mouth South Fork Eel River; North Coast Ranges, South Fork Eel River 60 Comment
  UC1145035  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1950-8-20 19324 Humboldt 8 mi below Orleans; Klamath River near Slate Creek 121 Comment
  HSC23305  Papaver somniferum W. Wood Oct 1971 Humboldt McKinleyville Comment
  SJSU10754  Parapholis incurva H. T. Harvey 1977-7-5 601 Humboldt Elk River Spit by Humboldt Bay Comment
  HSC12554  Parentucellia viscosa D. La Conte 1970-7-7 17 Humboldt Comment
  UCSB12235  Parentucellia viscosa Breedlove, Dennis 1961-7-4 Humboldt 13 mi W of U.S. 101 on U.S. 299 near crossing of Mad River 228 Comment
  POM230334  Parentucellia viscosa J. T. Howell 1937-7-31 13719 Humboldt 3 miles west of Korbel, Comment
  RSA246670  Parentucellia viscosa Robert F. Thorne, Percy C. Everett 1965-8-7 35202 Humboldt Samoa Peninsula. Near sea level. Comment
  UC552749  Paspalum distichum Joseph P. Tracy 1934-7-30 13498 Humboldt on coast near Stone Lagoon (Dry Lagoon); North Coast Ranges, near Stone Lagoon, Dry Lagoon 3 Comment
  UC169890  Paxistima myrsinites Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5754 Humboldt Trinity Summit Comment
  JEPS10724  Pedicularis groenlandica Joseph P. Tracy 1932-7-16 10639 Humboldt Corral Prairie; Trinity Summit 1584 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
  UC213504  Pedicularis racemosa Joseph P. Tracy 1919-9-18 5249 Humboldt Trinity Summit; Northern Coast Ranges 1524 Comment
  CAS-BOT-BC69339  Pellaea brachyptera Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC55753  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-26 10285 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  JEPS26256  Penstemon anguineus Joseph P. Tracy 1919-9-18 5250 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1524 Comment
  UC577404  Penstemon anguineus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8918 Humboldt near McKay Camp; South Fork Mountain (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC39933  Penstemon anguineus J. O. Sawyer 1970-6-25 2292 Humboldt 1646 Comment
  UC1011933  Penstemon anguineus F. W. Pennell and J. P. Tracy 1940-7-7 26092 Humboldt w Salyer (Grouse Mountain); w of Salyer, Grouse Mountain 1371 Comment
  HSC73698  Penstemon laetus subsp. sagittatus M. A. Baker 1980-7-15 2971 Humboldt Near Whiting Ridge. 1341 Comment
  JEPS11631  Penstemon laetus var. sagittatus Joseph P. Tracy 1933-7-25 12827 Humboldt Horse Mountain 1432 Comment
  UC577396  Penstemon laetus var. sagittatus Joseph P. Tracy 1935-7-14 14073 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC56231  Penstemon newberryi subsp. berryi Walter Overton 1979-8-1 12307 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  JEPS85630  Penstemon newberryi var. berryi W. L. Jepson July 16 - 23, 1902 2107 Humboldt Trinity Summit 2133 Comment
  HSC37502  Pentagramma triangularis J. D. Ackerman 1974-5-25 264 Humboldt 0.25 mi. S of Lufenholtz Beach off Scenic Dr. between Moonstone and Trinidad Comment
  UC162775  Pentagramma triangularis subsp. triangularis Joseph P. Tracy 1911-7-5 3315 Humboldt Willow Creek near its mouth Willow Creek; Northern Coast Ranges, tributary of Trinity River 243 Comment
  UC1197126  Perideridia gairdneri subsp. borealis J. P. Tracy 1906-11-4 2555 Humboldt near Eureka; Immediate vicinity of Eureka 0 Comment
  HSC98755  Perideridia oregana Cara Witte 2007-7-27 602 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1560 Comment
  UC1222743  Perideridia oregana Joseph P. Tracy 1949-7-19 18388 Humboldt 1/4 mi se Clear Lake (top of ridge); Grouse Mountain 1524 Comment
  HSC70535  Perideridia parishii subsp. latifolia Gail Newton 1980-7-20 1643 Humboldt Near Bell Swamps 1426 Comment
  HSC6051  Petasites frigidus var. palmatus D. E. Anderson 1962-3-18 1942 Humboldt Jacoby Creek Comment
  JEPS1438  Phacelia bolanderi W. L. Jepson 1932-8-9 16536 Humboldt Bull Creek 106 Comment
  UCD120311  Phacelia californica James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6871 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC176055  Phacelia egena Joseph P. Tracy 1913-6-25 4337 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC13667  Phacelia heterophylla subsp. virgata D. E. Anderson 1962-5-1 2198 Humboldt 1 mi. W of Hoopa Comment
  RSA428107  Phacelia mutabilis Brad W. Klipfel 1973-7-1 143 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  RSA134090  Phacelia nemoralis subsp. oregonensis L. R. Heckard 1952-5-13 275 Humboldt Above the South Fork of the Eel River, about w miles S of the Humboldt County line. Redwood and Madrone area along U.S. 101. Comment
  UC562568  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1935-5-25 13829 Humboldt Blocksburg 518 Comment
  HSC58070  Phacelia procera G. L. Clifton, Griswold 1979-8-1 11955 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  JEPS1045  Phacelia rattanii Joseph P. Tracy 1923-6-20 6305 Humboldt White Thorn Valley 304 Comment
  SEINET200961 Image available Phalaris angusta J. P. Tracy 1935-5-25 13856 Humboldt Fort Seward 107 Comment
  CDA20501  Phalaris arundinacea P. Haggard 2004-7-8 PDR 1285917 Humboldt North Coast; Alder Grove Park near pond. 0 Comment
  UC922010  Phalaris californica Joseph P. Tracy 1938-6-7 15861 Humboldt n side of Mad River 1/2 mi e bridge on Arcata-Blue Lake highway; n side of Mad River 30 Comment
  HSC49959  Philadelphus californicus Maralyn O'Meara 1974-7-17 555 Humboldt Along E border Comment
  SDSU904  Philadelphus lewisii Harvey 1938-8-14 2335 Humboldt US 299 Comment
  SEINET200857  Philadelphus lewisii subsp. gordonianus Joseph P. Tracy 1937-6-20 15355 Humboldt Bear River, ten miles upstream from the mouth. 152 Comment
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Oct 8 2018
  HSC26164  Phleum alpinum J. P. Smith, Steve Selva 1970-6-30 4127 Humboldt Comment
  UC181260  Phleum alpinum Joseph P. Tracy 1913-7-20 4376 1/2 Humboldt ridge between Redwood Creek and Three Creeks (on Berry's ranch); Northern Coast Ranges, btw Redwood Creek and Three Creeks 914 Comment
  HSC8515  Phleum pratense True Hoyle 1967-7-24 28967 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  UC572265  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 mi ne Bald Mountain; China Flat Quad. Comment
  HSC97646  Phlox diffusa subsp. diffusa C. Witte 2007-5-17 23 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  UC673118  Phlox gracilis Joseph P. Tracy 1940-5-17 16550 Humboldt Larrabee Valley 731 Comment
  HSC74351  Phoenicaulis cheiranthoides Gail Newton 1980-6-28 741 Humboldt Near Mad River Butte. 1536 Comment
  RSA698146  Phoradendron villosum J. Russell Bruff 1937-3-19 802 Humboldt Oak Flat camp - Ridge Route. Comment
  UC1198130  Phoradendron villosum Joseph P. Tracy 1949-12-3 18599 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC45100  Physocarpus capitatus R. Sutherland 1978-5-12 9 .12578 Humboldt 282 Comment
  UC1198698  Physocarpus capitatus Joseph P. Tracy 1912-7-4 3721 Humboldt near Hydesville 60 Comment
  CAS-BOT-BC78200  Picea sitchensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  RSA85509  Picea sitchensis G. R. Campbell 1954-3-24 19024 Humboldt 23.4 miles N of Petrolia on Old Coast Road toward Ferndale. Comment
  SBBG56401  Picea sitchensis J. W. Howe 1938-3-31 Humboldt near Arcata Comment
  UC1174871  Picea sitchensis P. C. Everett and E. K. Balls 1959-10-25 Humboldt 3 mi s from Ferndale (on Old Coast Road to Capetown) 426 Comment
  SEINET11809969  Picris echioides J. P. Tracy 1948-1 18098 Humboldt 2 mi W of Bridgeville Comment
  HSC104094  Pinguicula macroceras Monica Rodriguez, William A. Worley 2015-3-21 25 Humboldt Along South Fork Rd, 8.9 mi. from 199 Redwood Hwy. Comment
  UC1134104  Pinus contorta subsp. contorta H. S. Yates 1936-6-16 5660 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  HSC99046  Pinus jeffreyi Cara Witte 2008-6-15 754 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1 mile north of intersection with 6N36A. 1428 Comment
  JEPS48196  Pinus ponderosa W. L. Jepson 1902-6-18 1876 Humboldt Cummings to Harris Blue Rock Ridge 1219 Comment
  CAS-BOT-BC79028  Pinus ponderosa Ranger K. Fox 1939-8-22 13876 Humboldt Along the Everett Memorial Highway 1981 Comment
  UC1488747  Piperia elegans J. D. Ackerman 1974-8-13 405 Humboldt ca 2 mi n Manila (between sand dunes and Mad River Slough) Comment
  UC14939  Piperia elegans Harley P. Chandler Jun 1901 1385 b Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CAS-BOT-BC136587  Piperia michaelii L. B. Kildale 1930-8-3 10495 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC1121030  Pityopus californicus R. Stahelin 1933-7-20 Humboldt Korbel Eureka Quad. (yield Plot #16, se of Riverside Plant) 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
  HSC100407  Plagiobothrys nothofulvus Carl C. Marshall Apr 1887 371 Humboldt Hoopa Valley. Comment
  JEPS68107  Plagiobothrys nothofulvus Lincoln Constance 1934-5-23 617 Humboldt above Look Prairie; Bull Creek Region, South Fork Eel River 365 Comment
  UC552846  Plagiobothrys reticulatus Joseph P. Tracy 1935-5-25 13860 Humboldt Fort Seward 106 Comment
  UC708087  Plagiobothrys reticulatus C. V. Piper 1921-5-22 5011 Humboldt Eureka Comment
  UCD120864  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove, Trinidad. 64 Comment
  UC526826  Plagiobothrys reticulatus Joseph P. Tracy 1927-7-10 8245 Humboldt Alton North Coast Ranges, Alton 60 Comment
  JEPS60982  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1909-5-2 2960 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS60990  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1912-6-9 3680 Humboldt Alton Northern Coast Region 30 Comment
  JEPS61000  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-6-2 13923 Humboldt Big Lagoon 3 Comment
  HSC37922  Plantago erecta Peter Sorenson 1976-6-14 Humboldt N Spit Comment
  UCD124428  Plantago erecta D. E. Breedlove 1962-6-7 3046 Humboldt 1.5 miles south of Samoa on peninsula on west side of Humboldt Bay. 106 Comment
  HSC16844  Plantago lanceolata R. I. Bonn 1965-5-9 38 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  UC179952  Plantago lanceolata Joseph P. Tracy 1914-5-30 4484 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC16841  Plantago lanceolata D. E. Anderson 1961-8-25 1746 Humboldt 1.5 mi. S of Trinidad Comment
  UC585993  Plantago maritima var. californica Joseph P. Tracy 1927-6-26 8219 Humboldt Stone Lagoon 6 Comment
  HSC48856  Platanthera dilatata var. leucostachys Brad Klipfel 1973-7-15 215 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC54595  Platanthera dilatata var. leucostachys Overton, Butler 1979-7-24 9669 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC57692  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-7-25 10917 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC36625  Platanthera dilatata var. leucostachys J. D. Ackerman 1975-7-11 539 Humboldt South end of Big Lagoon, near the boat ramp Comment
  RSA21199  Platanthera leucostachys Carl B. Wolf 1937-8-10 9087 Humboldt Big Lagoon, bog at state park. 6 Comment
  UC1037486  Platanthera leucostachys Milo S. Baker 1927-8-21 2480 b Humboldt near Bald Mt. 914 Comment
  HSC70989  Platanthera sparsiflora Gail Newton 1980-7-20 1648 Humboldt Near Bell Swamps 1426 Comment
  HSC31185  Platanthera sparsiflora D. E. Anderson 1972-6-20 5753 Humboldt N slope of Horse Mtn. Comment
  CAS-BOT-BC91641  Platystemon californicus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  UC718183  Plectritis brachystemon Carl B. Wolf 1937-6-14 8814 Humboldt North Coast Range, Kneeland Prairie Kneeland Prairie; North Coast Range, Kneeland Prairie 822 Comment
  UC176954  Plectritis brachystemon Joseph P. Tracy 1913-6-23 4279 Humboldt between Van Duzen River and Mad River (on Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  UC1239587  Plectritis congesta Joseph P. Tracy 1921-6-12 5814 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC49370  Pleuricospora fimbriolata T. Jimerson, J. Pageau 1979-6-15 582 Humboldt West of FS 11N21, on the boundary between Sections 27 and 28. 762 Comment
  HSC57302  Pleuropogon refractus W. C. Overton 1979-8-1 12344 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa 1341 Comment
  UC1103801  Pleuropogon refractus Joseph P. Tracy 1911-6-4 3234 Humboldt along Little River, 5 mi from the coast Little River; Northern Coast Region, Little River 121 Comment
  UC1317649  Pleuropogon refractus R. Tofsrud 1949-7-22 Humboldt on road between Scotia and Capetown Comment
  UC526779  Pleuropogon refractus Joseph P. Tracy 1932-7-14 10539 Humboldt Trinity Summit, Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  SEINET200752  Pneumonanthe oregana J. P. Tracy 1904-8-7 2140 Humboldt Immediate vicinity of Eureka. 0 Comment
  SEINET10589989  Poa Rattan 1878-1 RATTAN s.n. Humboldt Common in inherited ... Comment
  HSC10626  Poa annua William J. Ferlatte 1963-5-8 39 Humboldt Near 11th and B Sts., Arcata. Comment
  HSC89595  Poa annua M. Roantree 1985-5-2 29 Humboldt S side of Trinidad Head summit, near cross. Comment
  UC1145113  Poa annua Joseph P. Tracy 1937-5-17 15294 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC255029  Poa compressa Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  CAS-BOT-BC255119  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  HSC33722  Poa confinis Dryden 1975-5-24 201 Humboldt Samoa Dunes off Samoa Blvd. across from boat landing. Comment
  HSC74676  Poa cusickii subsp. epilis Gail Newton 1981-5-16 2176 Humboldt Near Bug Creek. 1228 Comment
  CAS-BOT-BC255850  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay 30 Comment
  RSA183645  Poa kelloggii D. E. Anderson 1965-5-6 3622 Humboldt 4.8 miles west of bridge over North Fork of Mad River, along Hw. 299. Alder bench below highway backslope Comment
  OBI22137  Poa macrantha Carl B. Wolf 1937-6-18 8904 Humboldt Centerville Beach Comment
  HSC39179  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1222 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC75699  Poa pratensis Bill Copeland 1980-6-26 565 Humboldt Near Snow Camp Lake 1372 Comment
  HSC98173  Poa pratensis R. D. Modafferi 1965-5-13 77 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  JEPS72922  Poa pratensis subsp. pratensis Lincoln Constance 1934-6-19 918 a Humboldt near summit Grasshopper Peak (S Fork Eel River); Bull Creek Region 914 Comment
  UC525669  Poa secunda subsp. secunda Joseph P. Tracy 1927-4-2 7881 Humboldt facing S Fork of Eel River Phillipsville; Northern Coast Ranges 121 Comment
  HSC10809  Poa unilateralis R. Long 1964-5-7 Humboldt Samoa. Comment
  HSC10812  Poa unilateralis R. D. Rogers 1964-4-16 5 Humboldt Patricks Point State Park. Comment
  RSA774713  Polygala californica Thekla Mohr 1918-07 3336 Humboldt Eel River. Comment
  HSC23711  Polygala californica Tim Baroni 1971-6-25 39 Humboldt Comment
  CAS-BOT-BC167574  Polygala cornuta var. cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC672977  Polygonum amphibium Joseph P. Tracy 1927-5-14 8026 Humboldt Patterson Ranch Trinity River Valley, Willow Creek (in pond) 152 Comment
  UC275278  Polygonum aviculare subsp. depressum Joseph P. Tracy 1924-8-24 6826 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC184021  Polygonum bistortoides Joseph P. Tracy 1913-6-17 4151 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  JEPS50516  Polygonum convolvulus Milo S. Baker 1923-8-5 176 Humboldt Stone Lagoon; in potato field Comment
  UC672965  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1940-8-25 16707 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC146189  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1908-6 2921 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC535117  Polygonum douglasii subsp. spergulariiforme H. E. Parks, J. P. Tracy 1930-9-15 767 Humboldt Kneeland Bald Hills Comment
  HSC101995  Polygonum douglasii var. douglasii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 894 Humboldt Patterson Meadows 1566 Comment
  UC1192316  Polygonum hydropiper Malcolm A. Nobs and S. Galen Smith 1949-8-11 1336 Humboldt Stone Lagoon; marsh on e shore Comment
  JEPS50635  Polygonum lapathifolium W. L. Jepson 1921-8-7 9334 Humboldt Stone Lagoon Comment
  UC672949  Polygonum lapathifolium Joseph P. Tracy 1930-10-12 9204 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  CAS-BOT-BC418616  Polygonum majus Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  HSC55125  Polygonum minimum G. L. Clifton, Griswold 1979-8-1 11929 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  POM129566  Polygonum paronychia Grout, S. Grout 1910-09 s.n. Humboldt Eureka. Comment
  UC672980  Polygonum phytolaccifolium Joseph P. Tracy 1933-7-25 12840 Humboldt Grouse Mountain; near springs 1524 Comment
  CDA2913  Polygonum sachalinense T. C. Fuller 1960-8-25 4973 Humboldt Northwestern; Outer North Coast Ranges region; West of Highway 101, 0.25 mile north of Humboldt Hill Road, Eureka. 0 Comment
  RSA139174  Polygonum sachalinense T. C. Fuller 1960-8-25 4973 Humboldt W Hwy 101 0.25 mile N of Humboldt Hill Road, Eureka Comment
  UC1222469  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1935-7-14 14082 Humboldt Grouse Mountain 1524 Comment
  HSC98687  Polygonum sawatchense subsp. oblivium Cara Witte 2007-7-5 420 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  CAS-BOT-BC421011  Polygonum spergulariiforme Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC71830  Polypodium californicum Donald Branscomb 1958-12-1 s.n. Humboldt Trinidad Comment
  UC249780  Polypodium glycyrrhiza Joseph P. Tracy 1924-3-9 6614 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC1109  Polypodium glycyrrhiza Gene S. Van Horn 1962-1-12 8 Humboldt 150 yards from mouth of E creek leading into the HSC reservoir 61 Comment
  JEPS33247  Polypodium glycyrrhiza Lincoln Constance 1934-5-31 748 Humboldt Bull Creek Region, S. Fork Eel R. Comment
  CAS-BOT-BC232958  Polypogon australis Mrs. H. C. Cantelow 1961-5-29 s.n. Humboldt 5.7 km Eel River, Hartsook Comment
  HSC59125  Polypogon australis Terry Roth 1979-4-28 17 Humboldt Glendale exit off of Hwy. 299, gravel road towards Mad River 30 Comment
  UC1145081  Polypogon interruptus Joseph P. Tracy 1940-10-5 16748 Humboldt Trinidad 6 Comment
  UC184147  Polypogon interruptus Joseph P. Tracy 1912-6-27 3709 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  HSC38330  Polypogon monspeliensis P. D. Sorensen 1976-6-11 Humboldt King Salmon. Comment
  UCD39987  Polystichum imbricans subsp. curtum Rodney Gale Myatt 1971-9-22 1198 B Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  HSC98592  Polystichum imbricans subsp. imbricans Cara Witte 2008-6-11 707 Humboldt National Forest Road 5N10. 2 miles east of waterhole / Forest Service Road 5N10D. 1315 Comment
  HSC98978  Polystichum imbricans subsp. imbricans Cara Witte 2007-5-23 96 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 0.5 mi. south of intersection with 5N04 and 4N32E. 1402 Comment
  HSC70940  Polystichum munitum R. York 1980-5-17 556 Humboldt Near Le Perron Peak 1066 Comment
  RSA698536  Polystichum munitum J. R. Bruff 1937-8-17 922 Humboldt Richardson Grove. Comment
  SDSU1640  Polystichum munitum Harvey 1938-8-13 2251 Humboldt Redwood Park. Comment
  HSC79147  Polystichum munitum C. J. Thomas 1984-9-25 119 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  HSC79181  Polystichum munitum C. J. Thomas 1984-9-25 116 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  UC249777  Polystichum munitum Joseph P. Tracy 1924-8-10 6803 Humboldt near Strongs Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  HSC66076  Polystichum scopulinum M. S. Taylor, J. D. Jokerst, L. Ahart 1980-2-8 3214 Humboldt Humboldt Peak, N outcrop on the top 2155 Comment
  HSC98644  Populus trichocarpa Cara Witte 2007-7-26 598 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1366 Comment
  UC215463  Populus trichocarpa Huron H. Smith 1911-7-7 3938 Humboldt Bull Creek Comment
  HSC36130  Potamogeton crispus Rod Blacker 1974-5-20 742005 .2 Humboldt Jolly Giant Creek, W side of Alliance Rd. Culvert Comment
  RSA152546  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC13488  Potamogeton natans W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  HSC36314  Potamogeton natans L. Preston 1973-5-19 Humboldt 2 mi. W Arcata Comment
  HSC62826  Potamogeton nodosus J. M. DiTomaso 1979-4-22 907 Humboldt Crannell Rd. exit between Westhaven and McKinleyville Comment
  UC302159  Potamogeton richardsonii E. G. Pluke 1926-8-1 Humboldt w of Dows Prairie (lagoon at mouth of Widow White Creek); Widow White Creek 3 Comment
  UCD149951  Potamogeton richardsonii William Anderson; H. Mc. 1964-8-5 s.n. Humboldt Freshwater Lagoon. Comment
  CAS-BOT-BC158496  Potentilla gracilis var. gracilis Doris K. Kildale 1926-6-27 2210 Humboldt Laribee Valley 701 Comment
  CAS-BOT-BC158497  Potentilla gracilis var. gracilis Carl B. Wolf 1934-7-2 5859 Humboldt 5 1/2 mi. from Bald Mt. on road to Snow Camp 914 Comment
  UC585628  Potentilla gracilis var. gracilis Joseph P. Tracy 1933-8-6 12929 Humboldt on Bald Hills e Orick (Tomlinson Ranch); on Bald Hills e of Orick, Tomlinson Ranch 670 Comment
  SBBG982  Prosartes smithii H. and M. Dearing 1933-5-16 256 Humboldt near Weott Comment
  SEINET12044820  Prosartes smithii Unknown 1933-1 3413 Humboldt Dyerville, South Fork of Eel River 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
  UCD125323  Prunella vulgaris var. lanceolata K. Esau 1934-5-6 s.n. Humboldt Fort Seward. 152 Comment
  UC1198773  Prunus virginiana var. demissa Joseph P. Tracy 1933-5-14 12176 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC1222309  Prunus virginiana var. demissa Joseph P. Tracy 1950-6-25 18881 Humboldt Buck Mountain, on the Burr Valley Road Buck Mountain; , Burr Valley Road 1066 Comment
  CAS-BOT-BC357606  Pseudognaphalium stramineum Joseph P. Tracy 1937-6-26 15364 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC357607  Pseudognaphalium stramineum Joseph P. Tracy 1937-8-3 15614 Humboldt Along Mad River, near Blue Lake 15 Comment
  UC204167  Pseudognaphalium stramineum Joseph P. Tracy 1918-7-5 5029 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley (in open field) 304 Comment
  HSC1582  Pseudotsuga menziesii var. menziesii W. R. Rogers 1965-7-1 300 Humboldt Hwy. 299 4 mi E of Blue Lake Comment
  HSC41283  Pseudotsuga menziesii var. menziesii Brad Klipfel 1974-7-23 473 Humboldt Horse Mountain, NW from the towers Comment
  HSC74279  Pseudotsuga menziesii var. menziesii M. A. Baker 1980-5-23 1398 Humboldt Near Buck Mtn. 1524 Comment
  UC1223051  Psilocarphus oregonus Joseph P. Tracy 1947-6-25 17720 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  UC1223168  Psilocarphus tenellus Joseph P. Tracy 1949-6-20 18320 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  BLMAR157  Pteridium aquilinum var. pubescens Donald Hazlett 1994-6-7 157 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1222154  Pterospora andromedea Joseph P. Tracy 1950-8-8 19274 Humboldt 3 mi e Box Camp; Trinity Summit Comment
  UC672932  Pterostegia drymarioides Joseph P. Tracy 1933-5-20 12226 Humboldt s point of cape; Cape Mendocino 3 Comment
  UCD92898  Puccinellia nutkaensis Joseph P. Tracy 1950-6-17 18834 Humboldt at Eureka. 3 Comment
  UC577353  Pycnanthemum californicum Joseph P. Tracy 1926-10-7 7809 Humboldt w side South Fork of Trinity River opposite Limestairs; South Fork of Trinity River Comment
  JEPS58839  Pyrola aphylla Milo S. Baker 1923-7-31 168 Humboldt Booth's Run, North Coast Comment
  UC1197571  Pyrola asarifolia Edith Tracy 1898-7-1 248 Humboldt on Kneeland Prairie Road about 10 miles Esta of Eureka 457 Comment
  HSC54554  Pyrola dentata Overton, Butler 1979-7-24 9560 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC100631  Pyrus rivularis Carl C. Marshall 35 Humboldt No data. Comment
  UC8128  Quercus X morehus Harley P. Chandler June, 1901 1454 Humboldt Klamath River North Coast Ranges 304 Comment
  UCD47053  Quercus X morehus W. L. J. Jun-5 Jul 1903 2191 Humboldt Van Arsdale Ranch, Halker Valley region. Expedition of W.L. Jepson and W.W. Mott from Ukiah to southern Humboldt Co., via the Blue Rock Ridge and return via Fort Bragg. 457 Comment
  UC478893  Quercus chrysolepis Marcus E. Jones, A. M. 1931-7-16 28845 Humboldt near Trinity River (Burnt Ranch) Comment
  CAS-BOT-BC94314  Quercus garryana Doris K. Kildale 1926-6-27 2200 Humboldt Laribee Valley 701 Comment
  HSC8236  Quercus garryana D. E. Anderson 1961-9-3 1778 Humboldt 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
  HSC99030  Quercus garryana var. garryana Cara Witte 2008-7-14 898 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  HSC99122  Quercus garryana var. garryana Cara Witte 2008-9-13 1041 Humboldt Forest Service Road 4N38. 1/2 mile south of intersection to Tri Board Camp. 1506 Comment
  CAS-BOT-BC105168  Quercus kelloggii Doris K. Kildale 1928-10-7 6746 Humboldt Willow Creek Flat on Trinity River Comment
  JEPS38041  Quercus kelloggii Lincoln Constance 1934-5-29 738 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  CDA22029  Quercus sadleriana G. J. Muth 1972-8-15 1845 Humboldt Near Big Hill Road. 167 mm from bottom margin, 258 mm from left margin. Comment
  JEPS37674  Quercus sadleriana W. L. Jepson Jul 16 1902-Jul 23 1902 2033 Humboldt just below Trinity Summit 2133 Comment
  JEPS49020  Quercus sadleriana Hilda W. Grinnell 1932-7-9 4 Humboldt above Kerlin Creek; South Fork Mt. 1524 Comment
  SBBG111333  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt House Mtn at jct of rd to Grouse Mtn and rd to Horse Mtn Mine 1463 Comment
  HSC18117  Ranunculus aquatilis var. diffusus D. E. Anderson 1965-5-15 3712 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC28201  Ranunculus hebecarpus Thomas W. Nelson 1971-5-7 429 Humboldt Beside Hwy. 101 1.0 mi. S of Arcata Comment
  HSC82522  Ranunculus occidentalis Thomas W. Nelson 1977-6-15 3441 Humboldt Along old road to Horse Mountain ski area. 1372 Comment
  HSC49168  Ranunculus occidentalis J. O. Sawyer 1977-4-23 2837 Humboldt Along Bald Hills Rd. E of Hoopa Comment
  HSC45624  Ranunculus occidentalis var. occidentalis Diane L. Reed 1978-4-22 11 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  SBBG2267  Ranunculus occidentalis var. occidentalis H. and M. Dearing 1939-5-24 3415 c Humboldt Alton Comment
  HSC39419  Ranunculus occidentalis var. occidentalis Thomas W. Nelson, Jane P. Nelson 1976-6-15 2712 Humboldt Along trail from lookout to Blocksburg 1555 Comment
  UC1196254  Ranunculus orthorhynchus var. orthorhynchus J. P. Tracy 1901-5-12 1075 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC39607  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson, James Nelson 1976-7-28 3081 Humboldt W of Alder Springs. 1524 Comment
  HSC30270  Ranunculus parviflorus David Ferranti 1974-5-6 Humboldt Garden weed at 4360 Union St. Eureka Comment
  HSC55651  Ranunculus uncinatus Overton, Butler 1979-7-24 9747 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC64220  Ranunculus uncinatus J. O. Sawyer, M. A. Ericksen 1979-6-23 3381 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC18192  Ranunculus uncinatus E. W. Styskel 1963-5-16 32 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  UC61090  Rhamnus californica subsp. californica Mrs. M. H. Manning oct 1901 Humboldt near Hupa Comment
  JEPS41952  Rhamnus purshiana W. L. Jepson 1902-7-15 2032 Humboldt Mud Spring to Trinity Summit 1219 Comment
  RSA7813  Rhamnus purshiana Doris K. Kildale 1928-7-29 5925 Humboldt Mouth of Bear River at Capetown Comment
  CAS-BOT-BC56609  Rhododendron macrophyllum C. B. Wolf 1931-8-29 2370 Humboldt Near summit of Orick Hill on road to Weitchpec 304 Comment
  RSA254755  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Beside the old Kneeland Rd. Comment
  UC153962  Rhododendron macrophyllum Joseph P. Tracy 1906-6-10 2489 Humboldt Humboldt Bay Region, Kneeland Prairie Road Kneeland Prairie Road; Northern Coast Region, Humboldt Bay Region, Kneeland Prairie 609 Comment
  UCSB24457  Rhododendron occidentale McMinn, Howard 1934-6-22 Humboldt Sea Cliff north of Eureka Comment
  HSC102638  Ribes binominatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1622 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC103230  Ribes binominatum Jade Paget-Seekins 2010-6-23 27 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC99095  Ribes binominatum Cara Witte 2008-7-28 944 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  JEPS79963  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt near Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  HSC59630  Ribes bracteosum J. P. Smith 1971-10-9 5018 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  RSA183639  Ribes bracteosum D. E. Anderson 1965-5-8 3632 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  HSC97305  Ribes divaricatum var. pubiflorum M. Mesler 2007-3-14 740 Humboldt Blue Lake, Hatchery Rd., 0.6 mi. S of West End Rd. 44 Comment
  HSC70894  Ribes inerme var. klamathense J. M. DiTomaso 1981-5-15 2000 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  HSC23682  Ribes lacustre J. O. Sawyer 1971-6-14 2381 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  CAS-BOT-BC173358  Ribes lobbii Harley P. Chandler 1901-6-1 1278 Humboldt Hupa Indian Reservation 1097 Comment
  UC1198925  Ribes lobbii Joseph P. Tracy 1936-8-8 15139 Humboldt ne Hawkins Bar.; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  RSA0021640  Ribes malvaceum E. K. Balls, P. C. Everett 1953-10-11 18627 Humboldt S. boundary Eel River Lodge, 4.3 mi. N of Richardson s Grove, Highway 101. 152 Comment
  JEPS49228  Ribes menziesii Jos. P. Tracy 1918-4-7 4866 Humboldt Luffenholz Creek 30 Comment
  UC902108  Ribes menziesii Joseph P. Tracy 1948-3-6 17953 Humboldt Trinidad 60 Comment
  HSC20310  Ribes menziesii F. S. Griffith 1965-3-20 104 Humboldt 1.0 mi. E of Hwy. 101 along Mad River Rd. Comment
  HSC56094  Ribes nevadense G. L. Clifton, Griswold 1979-7-31 11798 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC20325  Ribes roezlii J. Sandborg, F. Sandborg 1968-7-19 56 Humboldt Bluff Creek near Notice Creek 793 Comment
  HSC71590  Ribes roezlii M. A. Baker 1980-6-26 2397 Humboldt Near Sims Creek 610 Comment
  JEPS49190  Ribes roezlii Joseph P. Tracy 1923-3-17 6159 Humboldt Garberville Northern Coast Ranges 121 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
  BLMAR142  Ribes roezlii var. amictum Donald Hazlett 1994-6-7 142 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC198869  Ribes roezlii var. amictum Alice Eastwood 1939-3-19 18898 Humboldt Bolling Grove Comment
  HSC45099  Ribes roezlii var. amictum R. Sutherland 1978-4-23 15 .23478 Humboldt 716 Comment
  UC1198950  Ribes roezlii var. amictum Joseph P. Tracy 1930-7-27 9111 Humboldt near Petrolia; North Coast Ranges, Mattole River 15 Comment
  CAS-BOT-BC144682  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-7-22 4693 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  CAS-BOT-BC144683  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-6-25 4617 Humboldt Sand dunes 2 miles north of Samoa Comment
  CAS-BOT-BC144689  Ribes sanguineum var. glutinosum C. Epling; Wm. Robison 1935-7-22 s.n. Humboldt Patrick's Point Comment
  HSC20333  Ribes sanguineum var. glutinosum C. B. Wolf 1927-8-29 1191 Humboldt 7 mi. S of Ferndale and Capetown, Bear River Ridge, Mt. Glen Comment
  UC667051  Ribes sanguineum var. glutinosum Joseph P. Tracy 1933-3-26 10943 Humboldt Big Lagoon 60 Comment
  UC463025  Ribes victoris E. B. Copeland 1931-8-18 Humboldt below Densmore; Van Duzen River Comment
  CAS-BOT-BC173992  Ribes viscosissimum J. H. Thomas 1949-6-13 913 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  CAS-BOT-BC173993  Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt Ridges East of Corral Prairie 1828 Comment
  HSC56118  Ribes viscosissimum Gilbert Muth 1979-8-1 11895 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC13750  Romanzoffia californica Doris K. Kildale 1926-3-21 1574 Humboldt Kneeland Prairie Comment
  UC144104  Romanzoffia californica Joseph P. Tracy 1909-5-16 2970 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  HSC35152  Romanzoffia tracyi Gary S. Lester 1975-4-4 605 Humboldt About 1 mi. N of Elk Head near Trinindad 15 Comment
  CAS-BOT-BC74505  Rorippa curvisiliqua Doris K. Kildale 1926-4-11 1767 Humboldt Van Duzen River at Alton. 30 Comment
  UC161485  Rorippa curvisiliqua J. P. Tracy 1906-7-1 2519 Humboldt vicinity Eureka; vicinity Eureka 0 Comment
  UC527555  Rosa eglanteria C. B. Wolf 1931-8-28 2363 Humboldt 1/8 mi from kRohnerville on road to Fortuna Comment
  HSC19635  Rosa gymnocarpa G. N. Bos 1965-5-15 263 Humboldt 4 mi. W of Berry Summit, along Hwy. 299 671 Comment
  HSC32264  Rosa gymnocarpa J. O. Sawyer 1970-6-24 2249 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC39397  Rosa gymnocarpa D. E. Anderson, J. P. Smith 1971-6-28 1251 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC74196  Rosa gymnocarpa M. A. Baker 1980-7-23 3167 Humboldt Near Orleans Mtn. 1859 Comment
  POM365829  Rosa gymnocarpa Jane Turner, F. M. Ball 1962-7-10 1143 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  UC162330  Rosa gymnocarpa Joseph P. Tracy 1911-7-7 3428 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow and Campbell Creeks, near summit) 1219 Comment
  UC492160  Rosa gymnocarpa Joseph P. Tracy 1932-7-13 10493 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC667030  Rosa gymnocarpa Joseph P. Tracy 1936-8-7 15107 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  HSC98101  Rosa nutkana Cara Witte 2007-6-21 329 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  LA208224  Rosa nutkana H. Lewis; 1940-7-3 sn Humboldt Dry lagoon Beach, State Park Comment
  OBI5837  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1.8 mi from Rohnerville on the road to Fortuna 30 Comment
  HSC19623  Rosa rubiginosa D. E. Anderson 1965-9-5 4096 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  CAS-BOT-BC148221  Rosa spithamea Doris K. Kildale 1930-5-24 9549 Humboldt Trinity River at Hoopa 121 Comment
  CAS-BOT-BC148224  Rosa spithamea Doris K. Kildale; L. B. Kildale 1930-5-24 9549 Humboldt Hoopa Valley 152 Comment
  UCD17685  Rubus H. Olmo; T. S. Mallah 1953-4-3 53 58 Humboldt California. Humboldt County: 300 yards west of junction of State 1 and Redwood Highway, across from Justice Court of Long Valley. Comment
  HSC102020  Rubus lasiococcus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 921 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  JEPS44732  Rubus lasiococcus Joseph P. Tracy 1932-7-16 10640 Humboldt in fir woods near Corral Prairie; Klamath Mountains, Trinity Summit, nr Corral Prairie 1524 Comment
  UC467839  Rubus leucodermis P. E. Goddard 1906-6 673 Humboldt Lasseck Pk. Lasseck Pk Comment
  HSC77922  Rubus parviflorus L. P. Janeway, Paul Wilson 1984-5-7 768 Humboldt Near Coast Guard Station, N Spit of Humboldt Bay 3 Comment
  UCD20671  Rubus parviflorus A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute, near Redwood Park. Comment
  SEINET3111190  Rubus parviflorus var. parviflorus Steve Selva, Roger Jensen 1974-8-28 98 Humboldt Redwood Forest behind Humboldt State University, Arcata. Comment
  CHSC57509  Rubus spectabilis Eric Hartwell 1983-3-30 2 Humboldt Ca. 0.25 mi e of jct. of Jocoby Creek Rd. and Sonnenfelt Rd. 97 Comment
  HSC19690  Rubus spectabilis K. P. St. John 1965-4-3 8 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  HSC95739  Rubus spectabilis Kevin Thomas 2004-3-18 3 Humboldt Near Clam Beach exit of Hwy. 101 N, along old Hwy. 101, at end of Little River Rd. Comment
  HSC8607  Rubus ursinus R. E. Hafenfeld 1965-5-9 5 Humboldt Near jct. of Gold Bluff Beach Rd.and Squashan Cr. Comment
  UCD17617  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 047 Humboldt California. Humboldt County: 6.6 miles north of Ettersburg on road to Honeydew. Comment
  HSC99570  Rudbeckia occidentalis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 235 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
  UC1541400  Rumex acetosella W. K. Parks Apr 1934 5279 Humboldt Spruce Cove Trinidad Comment
  UCD100980  Rumex acetosella Linda M. Barker 1976-5-13 1483 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC17567  Rumex acetosella J. W. Johnson 1961-8-17 1039 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC17575  Rumex acetosella Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  POM280484  Rumex acetosella Lyman Benson 1928-7-11 s.n. Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  SEINET4206289  Rumex acetosella J. Raycraft 1966-4-23 s.n. Humboldt Arcata Comment
  UCD100992  Rumex acetosella Lincoln Constance 1934-6-3 807 Humboldt Bull Creek Region, South Fork Eel River. Along N side of Redwood Hwy, at Dyerville. Comment
  HSC34977  Rumex crassus Thomas W. Nelson 1974-9-13 1712 Humboldt King Salmon area Comment
  HSC26348  Rumex crispus T. O. Osborne 1970-5-24 75 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  JEPS39867  Rumex obtusifolius Milo S. Baker 1923-8-4 181 Humboldt s of Stone Lagoon Comment
  UC1735899  Rumex occidentalis Dean W. Taylor 1991-9-15 12292 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  CAS-BOT-BC434098  Rumex transitorius Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC44841  Rupertia physodes Thomas W. Nelson, Jane P. Nelson 1977-7-1 3573 Humboldt Along road 2S08 below Goat Hill 1524 Comment
  RSA91333  Rupertia physodes F. W. Peirson 1941-7-27 13095 Humboldt Elk Valley Forestry Camp. Comment
  HSC49621  Ruppia maritima R. York 1979-5-23 311 Humboldt Old abandoned logging pond at the S end of H St. in Arcata 0 Comment
  UC1198323  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1911-7-9 3467 Humboldt near mouth Willow Creek (a tributary of Trinity R.); Northern Coast Ranges, Willow Creek (a tributary of Trinity 152 Comment
  POM161039  Sagina procumbens Joseph P. Tracy 1920-6-6 5338 Humboldt Freshwater Creek near Wrangletown. 30 Comment
  HSC26873  Salicornia depressa Clifton Raymond Chesbrough 1973-6-20 103 Humboldt .25 mi. N of Eureka slough along Hwy. 101 Comment
  CAS-BOT-BC129896  Salix bonplandiana Joseph P. Tracy 1932-4-23 9835 Humboldt South Fork of Eel River, between Miranda and Redway - North Coast Ranges 91 Comment
  CAS-BOT-BC129897  Salix bonplandiana Joseph P. Tracy 1933-6-9 12528 Humboldt Shively, along Eel River - Northern Coast Ranges 30 Comment
  CAS-BOT-BC129900  Salix bonplandiana Doris K. Kildale 1926-4-1 1700 Humboldt Dobbyn's Creek Comment
  UC481299  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 968 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  CAS-BOT-BC104111  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01331 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC104114  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01248 Humboldt floodplain of Eel River at Fernbridge Comment
  CAS-BOT-BC107708  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Fortuna, on banks of Eel River 10 Comment
  CAS-BOT-BC107761  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1221 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107764  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1214 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CHSC9652  Salix hookeriana E. L. Smith 1971-8-18 1023 Humboldt At Manila ca. 4 mi sw of Arcata, on w side of Humboldt Bay opposite of Eureka. Comment
  CHSC96697  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC19964  Salix hookeriana H. E. Parks 1931-3-24 915 Humboldt Vicinity of Trinidad R.R. Station Comment
  HSC20150  Salix hookeriana Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC33076  Salix hookeriana Thomas W. Nelson, Jim Ackerman 1974-5-14 1265 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  HSC38196  Salix hookeriana Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  HSC40879  Salix hookeriana Linda M. Barker 1976-6-14 1599 Humboldt 3 mi. W of Arcata, Lanphere-Christensen Dunes Comment
  HSC90428  Salix hookeriana Jean Hanson 1980-3-8 12 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS12912  Salix hookeriana Joseph P. Tracy 1927-4-23 7923 Humboldt mouth of Little River (edge of sand dunes); Northern Coast Ranges 6 Comment
  JEPS12929  Salix hookeriana Joseph P. Tracy 1931-4-4 9329 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  JEPS12958  Salix hookeriana Joseph P. Tracy 1931-8-9 9609 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  JEPS12960  Salix hookeriana Joseph P. Tracy 1931-9-19 9680 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  JEPS13090  Salix hookeriana Joseph P. Tracy 1936-10-24 15202 Humboldt Fortuna 15 Comment
  JEPS14759  Salix hookeriana Joseph P. Tracy 1926-3-14 7388 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  POM219354  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Near Samoa. On Humboldt Bay. 6 Comment
  RSA342502  Salix hookeriana Robert F. Thorne, Percy C. Everett 1965-8-9 35298 Humboldt Big Lagoon. 3 Comment
  UC1196557  Salix hookeriana Joseph P. Tracy 1933-11-12 13114 Humboldt along S. Fork Eel R. Miranda; North Coast Ranges 91 Comment
  UC1196629  Salix hookeriana Joseph P. Tracy 1919-3-23 5121 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC275502  Salix hookeriana Joseph P. Tracy 1925-2-15 6938 Humboldt Eureka Northern Coast Ranges, Eureka 60 Comment
  UC303032  Salix hookeriana Joseph P. Tracy 1926-3-14 7391 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC469112  Salix hookeriana Joseph P. Tracy 1931-8-23 9620 Humboldt sand dunes near Samoa; Northern Coast Region, on Humboldt Bay 6 Comment
  UC470423  Salix hookeriana Joseph P. Tracy 1931-9-19 9680 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC470435  Salix hookeriana Joseph P. Tracy 1931-10-18 9742 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC481333  Salix hookeriana Harold E. Parks 1931-5-27 998 Humboldt Bishop Pine Lodge Trinidad 76 Comment
  UC504055  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 4 Humboldt around Eureka Comment
  UC512014  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1229 Humboldt 1 1/2 mi e Alton; Van Duzen River 30 Comment
  UC512096  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1213 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC518895  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 9 Humboldt Samoa Comment
  RSA0034665  Salix hookeriana var. tomentosa Harold E. Parks 1931-5-12 0952 Humboldt Samoa, Humboldt Bay. 0 Comment
  UC906709  Salix laevigata Harold E. Parks and Joseph P. Tracy 1942-5-16 11567 Humboldt vicinity of Garberville 152 Comment
  CAS-BOT-BC128198  Salix lasiandra var. lasiandra Doris K. Kildale 1927-7-19 3773 Humboldt Pond naer Jarnigan's, Upper Mad River Comment
  HSC96616  Salix lasiandra var. lasiandra Gordon Leppig 2005-4-8 2205 Humboldt N Spit Swamp, W side of highway 3 Comment
  HSC98670  Salix lasiolepis Cara Witte 2008-7-10 858 Humboldt Along National Forest 1 on Kinsey Ridge. 1/4 mile from Forest Service Road 4N06. 1241 Comment
  HSC99836  Salix lasiolepis Jimerson, J. Pageau 1979-6-22 601 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  JEPS13082  Salix lasiolepis Joseph P. Tracy 1939-4-29 16237 Humboldt at mouth of Slate Creek Klamath River 121 Comment
  UC1196612  Salix lasiolepis Joseph P. Tracy 1926-8-12 7759 Humboldt Redwood Creek, at Berry's 274 Comment
  UC1196660  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-17 9414 Humboldt thicket near mouth of Willow Creek; Northern Coast Ranges, Willow Creek 152 Comment
  UC469437  Salix lasiolepis Joseph P. Tracy 1931-10-12 9731 Humboldt Dinsmore's Ranch Northern Coast Ranges, Van Duzen River (opposite Buck Mt.) 670 Comment
  UC490542  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1932-8-13 10343 Humboldt 3 mi. e. Trinidad (on Luffenholz Creek); Northern Coast Region, Luffenholz Creek 60 Comment
  UC506399  Salix lasiolepis Joseph P. Tracy 1932-8-21 10359 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 Comment
  CAS-BOT-BC107290  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01239 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  POM220140  Salix lasiolepis var. bigelovii H. E. Parks, Joseph P. Tracy 1931-5-17 976 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC107300  Salix lasiolepis var. bigelovii Doris K. Kildale 1926-12-19 2873 Humboldt South Fork 51 Comment
  CAS-BOT-BC107415  Salix lasiolepis var. lasiolepis L. R. Abrams 1916-7-11 5968 Humboldt near Blocksberg Comment
  RSA10910  Salix lasiolepis var. sandbergii Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1324 Humboldt Berry's Mountain. E of Redwood Creek. On Trinity Hwy. 762 Comment
  CHSC9553  Salix lucida subsp. lasiandra E. L. Smith 1971-4-6 923 Humboldt Ca. 3 mi s of Scotia, on Hwy 101. 60 Comment
  HSC20042  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River, between Alton and Carlotta 15 Comment
  JEPS12942  Salix melanopsis Joseph P. Tracy 1931-6-14 9582 Humboldt Van Duzen River Alton; Northern Coast Region 30 Comment
  JEPS12974  Salix melanopsis Joseph P. Tracy 1932-5-1 9850 Humboldt along Van Duzen River Alton; Northern Coast Ranges 30 Comment
  JEPS14786  Salix melanopsis Joseph P. Tracy 1933-5-20 12258 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC469448  Salix melanopsis Joseph P. Tracy 1931-5-3 9346 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC481266  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Roosevelt Hwy. Bridge; Little River Lagoon Comment
  UC481306  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481310  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 974 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC490557  Salix melanopsis Joseph P. Tracy 1932-5-10 9961 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC512011  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1234 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  CAS-BOT-BC129201  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1210 a Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad, appraximately at sea level. Comment
  CAS-BOT-BC129165  Salix scouleriana Harold E. Parks 1933-1-1 1341 Humboldt Spruce Cove, Highway 101, Trinidad 64 Comment
  POM160284  Salix scouleriana Joseph P. Tracy 1926-7-25 7753 Humboldt Big Lagoon 6 Comment
  SBBG57987  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen River 450 Comment
  UC1196693  Salix scouleriana Joseph P. Tracy 1924-1-20 6597 Humboldt near bay shore Samoa (around Humboldt Bay); Northern Coast Region, Humboldt Bay 3 Comment
  UC490528  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt head of Devil's Hole; Klamath Mts., Trinity Summit 1828 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
  UC519354  Salix scouleriana Joseph P. Tracy 1933-7-11 12706 Humboldt Grouse Mt.; North Coast Ranges, Grouse Mt. 1524 Comment
  UC55957  Salix scouleriana J. P. Tracy 1900-8-5 922 Humboldt immediate vicinity Eureka 0 Comment
  POM182025  Salix sessilifolia Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River. Alton to Fortuna. 15 Comment
  CAS-BOT-BC128984  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  HSC20105  Salix sitchensis H. E. Parks 1931-3-24 910 Humboldt Trinidad Comment
  HSC38145  Salix sitchensis Thomas W. Nelson 1976-11-3 3279 Humboldt Eureka, E side of F St., 3800 block Comment
  HSC90380  Salix sitchensis Jean Hanson 1980-3-8 4 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC1196715  Salix sitchensis Joseph P. Tracy 1926-2-21 7363 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC146202  Salix sitchensis J. P. Tracy 1905-11-5 2397 Humboldt immediate vicinity Eureka 0 Comment
  UC492339  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 a Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC492342  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC519351  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt meadow at McKay Camp; Northern Coast Ranges, S. Fork Mts., McKay Camp 1676 Comment
  UCLA69890  Salvia dorrii var. pilosa unknown Humboldt Harris Spring road 1828 Comment
  UC602515  Sambucus mexicana Joseph P. Tracy 1930-7-19 9088 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC44536  Sambucus nigra subsp. caerulea Brad Klipfel 1973-7-1 144 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC235124  Sambucus racemosa var. racemosa D. E. Breedlove 1962-6-8 3059 Humboldt U.S. Highway 101, 5 miles south of Orick 30 Comment
  UC1199042  Sanguisorba annua Joseph P. Tracy 1936-6-17 14974 Humboldt at crossing road from Bridgeville to Trinity Co. Little Van Duzen River 713 Comment
  HSC1798  Sanguisorba minor William J. Ferlatte, B. D. Rogers 1966-8-15 3122 Humboldt 1/2 mi. E of Azalea State Park Comment
  HSC19724  Sanguisorba minor D. E. Anderson 1963-5-25 2491 Humboldt Ca. 2 mi. S of Capetown Comment
  HSC21611  Sanicula arctopoides R. D. Modafferi 1965-3-13 16 Humboldt 1 mi. N of Trinidad on Trinity St. 305 Comment
  HSC26452  Sanicula arctopoides T. O. Osborne 1970-5-17 18 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  JEPS220  Sanicula bipinnatifida Lincoln Constance 1934-6-3 806 Humboldt road from High Rock to Horse Prairie ((<High Rock> on Redwood Hwy, 1 mi n of Dyerville)); South Fork Eel River, Bull Creek Region Comment
  HSC37194  Sanicula bipinnatifida Barbara Kelly 1976-5-13 255 Humboldt Below road at Kneeland Airport Comment
  CHSC35577  Sanicula crassicaulis Jacqueline Greenleaf 1980-5-23 87 Humboldt Near Dinsmores. 430 Comment
  HSC77963  Sanicula crassicaulis L. P. Janeway, Paul Wilson 1984-5-7 762 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  JEPS282  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7968 Humboldt facing South Fork of Eel River (Phillipsville); Phillipsville 121 Comment
  HSC90000  Sanicula crassicaulis Leonel Arguello 1989-6-10 Humboldt Lanphere- Christensen Dunes Preserve, 3 mi. W of Arcata. Beside the N fork of the Hunt trail. Comment
  UC1197096  Sanicula crassicaulis Joseph P. Tracy 1925-3-29 6949 Humboldt Northern Coast Ranges, Miranda, South Fork Eel River South Fork Eel River; Northern Coast Ranges, Miranda, South Fork Eel River 91 Comment
  HSC45393  Sanicula graveolens Thomas W. Nelson, Jane P. Nelson 1977-6-19 3491 Humboldt N of Goat Hill 1616 Comment
  UCD128032  Sanicula laciniata R. N. Raynor 1935-3-2 s.n. Humboldt Fort Seward. Comment
  UC1197078  Sanicula tuberosa Joseph P. Tracy 1918-5-28 4946 Humboldt Northern Coast Ranges, on Bald Mt., High Prairie High Prairie; Northern Coast Ranges, Bald Mt., High Prairie 1066 Comment
  UC183564  Sanicula tuberosa Joseph P. Tracy 1912-7-31 3943 Humboldt Northern Coast Ranges, Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  UC642317  Sanicula tuberosa Joseph P. Tracy 1933-7-11 12688 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 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
  HSC98716  Saponaria officinalis Cara Witte 2007-8-1 615 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1/2 mile north of intersection with Forest Service Road 5N09. 1414 Comment
  UC1239688  Satureja douglasii Joseph P. Tracy 1912-7-4 3733 Humboldt near Hydesville; Northern Coast Region 60 Comment
  JEPS26211  Saxifraga ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt near Ranger Station (Trinity Summit); Trinity Summit 1828 Comment
  UC1222363  Saxifraga ferruginea Joseph P. Tracy 1950-8-8 19295 Humboldt head of Croghan Hole (on Trinity Summit, [Granite Rock area]); Trinity Summit, Croghan Hole 1676 Comment
  UC1988888  Saxifraga mertensiana Joseph P. Tracy 1927-3-27 7854 Humboldt near South Fork (Trinity River Valley along river); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC55745  Saxifragopsis fragarioides G. L. Clifton, Griswold 1979-7-26 10267 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC7495  Scirpus congdonii J. P. Tracy 1937-8-12 15638 Humboldt Snow Camp 1402 Comment
  UC1103646  Scirpus congdonii Joseph P. Tracy 1937-8-12 15638 Humboldt Snow Camp 1402 Comment
  UC668015  Scirpus maritimus Joseph P. Tracy 1934-10-13 13684 Humboldt Big Lagoon Big Lagoon (near shore) 3 Comment
  SEINET4170940  Scirpus microcarpus Unknown 1914-9-13 4628 Humboldt At Eureka, Northern Coast Region 61 Comment
  UC1152056  Scirpus microcarpus Joseph P. Tracy 1950-8-7 19269 Humboldt meadow at Box Camp (Trinity Summit); , meadow at Box Camp 1463 Comment
  HSC45972  Scirpus microcarpus J. P. Smith 1973-5-26 6859 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET4673868  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles south of Exit 671 to Pepperwood.; 0 76 Comment
  UC1103491  Scoliopus bigelovii Joseph P. Tracy 1933-3-26 10941 Humboldt Big Lagoon 91 Comment
  POM160835  Scoliopus bigelovii Joseph P. Tracy 1924-3-9 6615 Humboldt Lawrence Creek, near Kneeland Prairie; Plants of Northern Coast Ranges. 610 Comment
  SEINET12050513  Scoliopus bigelovii F. H. Utech 1988-1 88 -027 Humboldt 16.6 mi E on CA 36 from junction US 101 near junction of Grizzly Creek & Van Duzen River on CA 36 110 Comment
  HSC21131  Scrophularia californica A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction, 100 yards W of Lindsey Creek Comment
  SBBG52998  Scrophularia californica J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  HSC91946  Scrophularia californica E. Mackey 1986-5-13 Humboldt Patrick's Point State Park, edge of coastal stand Comment
  BLMAR737  Scutellaria antirrhinoides Jennifer Wheeler 2015-5-12 737 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  HSC35699  Scutellaria californica Thomas W. Nelson, B. Reinhardt 1975-7-30 2106 Humboldt Beside Rd. out Whiting Ridge Comment
  HSC63212  Sedum laxum subsp. heckneri M. A. Baker 1979-7-6 1015 Humboldt W slope of Rattlesnake Creek Ridge overlooking Red Cap Creek, outcrop and road cut of FS Rd. 10N01 Comment
  HSC70891  Sedum laxum subsp. heckneri Gail Newton 1980-7-23 1707 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC76353  Sedum laxum subsp. heckneri Teresa Prendusi 1981-7-24 506 Humboldt Near Whiteys Peak 1634 Comment
  UC1198844  Sedum spathulifolium Joseph P. Tracy 1944-8-13 17490 Humboldt along Trinity Highway Willow Creek Canyon (rock bluffs at Romanzoffia Creek); Romanzoffia Creek, Willow Creek Canyon 365 Comment
  HSC6479  Sedum spathulifolium var. spathulifolium Francis Winter 1960-5-7 Humboldt 4 mi. S of Hoopa Indian Reservation, on Hoopa-Willow Creek Rd. 152 Comment
  RSA275307  Senecio elegans Thomas W. Nelson 1978-4-23 3880 Humboldt Adventive on coastal dunes northwest of Samoa Comment
  UC581697  Senecio glomeratus Joseph P. Tracy 1934-7-3 13306 Humboldt Walkers Point 9 Comment
  CDA7634  Senecio jacobaea E. C. Whitney 1966-8-25 Humboldt South side of mouth of Canyon Creek, Simpson Lumber Company property, ca. 6 miles north of Korbel. 0 Comment
  UC917220  Senecio minimus J. M. Tucker 1948-9-4 1863 Humboldt Becks Ranch, Hydesville Comment
  HSC102003  Senecio triangularis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 904 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 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
  RSA20783  Senecio triangularis C. B. Wolf 1937-8-13 9247 Humboldt North Coast Range 11 mi. E. of Hoopa Valley on New Road towards Trinity Summit. 1524 Comment
  RSA47114  Senecio triangularis Doris K. Kildale 1925-8-16 1172 Humboldt Trinity Summit. Elk Horn Prarie. 1524 Comment
  UC1223150  Senecio triangularis Joseph P. Tracy 1950-7-31 19241 Humboldt ne side top Grouse Mountain; ne side top of Grouse Mountain 1524 Comment
  UCD135823  Senecio vulgaris H. E. Parks; S. T. Parks. 1943-6-1 24234 Humboldt Spruce Cove, Trinidad. 60 Comment
  HSC12953  Sequoia sempervirens Steve Dorei 1970-10-8 10 Humboldt HSU campus, near corner of Union St. and st. leading to gyms Comment
  JEPS48271  Sequoia sempervirens Joseph P. Tracy 1926-2-21 7355 Humboldt Blue Slide on Van Duzen River 91 Comment
  JEPS48280  Sequoia sempervirens Mrs. Fay Howard 1929-10-5 Humboldt about 1 mi n Pepperwood (down the river) Comment
  POM302258  Sequoia sempervirens Robert Benson 1949-9-4 s.n. Humboldt 10 miles north of Garberville, South Fork of Eel River, North Coast Ranges, Eel River drainage area 122 Comment
  UC1196921  Sequoia sempervirens J. P. Tracy 1897-2-22 153 Humboldt immediate vicinity Eureka 0 Comment
  POM17181  Sherardia arvensis J. B. Feudge 1923-8-1 49 Humboldt Fortuna. 15 Comment
  UC1222507  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19034 Humboldt on the Butter Valley Road 2 mi e Cameron Hill Junction (near Kneeland); e of Cameron Hill Jct, near Kneeland Comment
  HSC100572  Sidalcea malviflora Carl C. Marshall Jun 1887 445 Humboldt East branch. Comment
  HSC48418  Sidalcea malviflora subsp. nana J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9924 Humboldt Hwy. 36 at Camp Creek Rd. 76 Comment
  JEPS109785  Sidalcea malviflora subsp. patula Dean W. Taylor 2005-6-10 19344 b Humboldt Branstetter Ridge, ca. 1 mile southeast along the ridge from Twin Peaks 701 Comment
  RSA46857  Sidalcea malviflora subsp. patula Doris K. Kildale 1927-7-1 3624 Humboldt Alton Hill Comment
  CDA18218  Silene californica G. D. Barbe, T. C. Fuller 1974-6-17 1846 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  UC1198361  Silene californica Joseph P. Tracy 1948-8-8 18096 Humboldt Iaqua 609 Comment
  UC659355  Silene californica Lincoln Constance, Alan A. Beetle 1940-5-16 2610 Humboldt coastal bluffs above Alton; above Alton Comment
  HSC82410  Silene campanulata subsp. glandulosa Thomas W. Nelson 1979-7-11 5019 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC387080  Silene gallica H. E. Parks; S. T. Parks 1936-6-1 5634 Humboldt Spruce Cove, Trinidad Comment
  CHSC33021  Silene gallica James Payne Smith Jr. 1970-6-7 3804 Humboldt 0.6 miles north of Luffenholtz Beach along Calif. 1 near Trinidad. Comment
  HSC4183  Silene gallica H. E. Parks, S. T. Parks Jun 1936 5634 Humboldt Spruce Cove, Trinidad Comment
  CAS-BOT-BC387079  Silene gallica Doris K. Kildale 1926-5-16 1844 Humboldt Lindsey Creek in Lower Mad River Comment
  HSC81686  Silene grayi Thomas W. Nelson 1979-7-11 5005 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC389049  Silene laciniata subsp. californica Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  SBBG21920  Silene laciniata subsp. californica D. Myrick 1964-7-26 976 Humboldt Hwy 299 ca. 15 mi E of Arcata 762 Comment
  HSC35749  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1993 Humboldt French Camp, 20 mi. E of Hwy. 101 Comment
  UC668087  Silene lemmonii Joseph P. Tracy 1932-7-12 10452 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  UC162883  Silene menziesii Harley P. Chandler June, 1901 1319 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  RSA21205  Silene scouleri var. scouleri C. B. Wolf 1937-8-10 9094 Humboldt Big Lagoon, so. side, w. side of Redwood Highway 6 Comment
  UCD135877  Silybum marianum James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6872 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1198794  Sisymbrium officinale Joseph P. Tracy 1904-7-24 2125 Humboldt immediate vicinity of Eureka 0 Comment
  HSC13918  Sisyrinchium bellum J. F. Knezevich 1968-5-23 457 Humboldt N of Trinidad at Big Lagoon 0 Comment
  HSC91875  Sisyrinchium bellum E. Mackey 1986-6-16 Humboldt Patrick's Point State Park Comment
  JEPS64287  Sisyrinchium bellum Lincoln Constance 1934-6-4 815 Humboldt Look Prairie and Bull Creek Road to Dyerville South Fork Eel River; Bull Creek Region, South Fork Eel River Comment
  UC175305  Sisyrinchium bellum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3587 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC13907  Sisyrinchium bellum T. M. Mingo May 1965 Humboldt E of College Cove, N of Trinidad Comment
  NY821311  Solanum laciniatum H. H. Smith 1911-6-17 3857 Humboldt Samoa Comment
  UC1222771  Solanum umbelliferum Joseph P. Tracy 1950-6-18 18851 Humboldt Briceland Comment
  BLMAR139  Solanum xanti Donald Hazlett 1994-6-7 139 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  SEINET11801714  Solidago canadensis var. salebrosa J. P. Tracy 1948-1 18210 Humboldt Trinity Summit, meadow at Box Camp 1463 Comment
  CAS-BOT-BC365440  Solidago elongata Carl B. Wolf 1927-8-2 809 Humboldt Along the hills near the ocean 1 mile south of Orick Comment
  HSC58093  Solidago elongata G. L. Clifton, Griswold 1979-8-1 12006 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC99541  Solidago elongata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 206 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1199318  Solidago elongata Joseph P. Tracy 1921-8-21 5943 Humboldt mouth South Fork of Trinity (near Willow Creek, Trinity River Valley); Northern Coast Ranges, Trinity River Valley, mouth South For 152 Comment
  CAS-BOT-BC365435  Solidago elongata Doris K. Kildale 1925-8-8 2459 Humboldt Mouth of Bull Creek Comment
  CHSC76025  Solidago spathulata Vernon H. Oswald 1999-8-19 9835 Humboldt Elk Head at the N end of Trinidad State Beach. At the headland overlooking the ocean. 30 Comment
  LA204224  Solidago spathulata S. K. Harris; 1939-9-5 990 Humboldt Samoa Comment
  RSA24389  Solidago spathulata C. B. Wolf 1941-2-22 9916 Humboldt Little River Beach State Park (north of Arcata). 8 Comment
  SD148219  Solidago spathulata var. spathulata G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7023 Humboldt Samoa Peninsula, 2.6 miles south of California 255 bridge across Humboldt Bay. 14 Comment
  UC205149  Solidago velutina subsp. californica Joseph P. Tracy 1919-9-13 5189 Humboldt Valley of Trinity River near mouth Willow Creek; Northern Coast Ranges, Valley Trinity River near mouth Willo 152 Comment
  CHSC31290  Sonchus asper Mark Stopher 1980-6-4 96 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  CAS-BOT-BC374428  Sonchus asper Joseph P. Tracy 1932-5-22 10115 Humboldt North Coast Ranges. South Fork of Eel River, between Miranda and Redway 91 Comment
  HSC63283  Sorbus scopulina M. A. Baker 1979-6-29 934 Humboldt Head of Oregon Creek Comment
  UC1103519  Sparganium emersum var. emersum Joseph P. Tracy 1934-10-21 13692 Humboldt in front of s end Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  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
  HSC94162  Spartina densiflora L. J. Heflin 1984-9-23 43 Humboldt Allen Marsh at Arcata Marsh and Wildlife Sanctuary Comment
  UCD92986  Spartina foliosa Malcolm A. Nobs; S. Galen Smith 1949-8-3 1180 Humboldt near mouth of the Elk River, ca. 4 miles south of Eurkea on Highway 101. Comment
  UCSB34193  Spartina foliosa Kearns, Dennis 1979-8-24 Humboldt Spring Tide Area of Arcata Bay, Arcata Boat Launching Facility at the South end of "I" Street Comment
  HSC4235  Spergula arvensis R. I. Bonn 1965-5-9 39 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC79184  Spergula arvensis L. P. Janeway 1984-2-6 711 Humboldt .25 mi. up Hidden Creek Rd. from LK Wood Blvd. 46 Comment
  RSA246888  Spergularia macrotheca R. F. Thorne, Percy C. Everett 1965-8-8 35277 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC4247  Spergularia rubra D. M. Thomson 1965-4-26 37 Humboldt 1/4 mi. S of Fern Canyon, Gold Bluff Beach 30 Comment
  CAS-BOT-BC149615  Spiraea douglasii Henry M. Pollard 1947-8-19 s.n. Humboldt Klamath River nr. Redcap Creek, Orleans region Comment
  POM274921  Spiraea douglasii Lyman D. Benson 1929-7-15 1822 Humboldt Fortuna Bog near the sea. Comment
  UC1128714  Spiraea douglasii H. L. Person 1932-7-19 Humboldt Lindsay Creek; Eureka Quad. Comment
  UC492192  Spiraea douglasii Joseph P. Tracy 1932-8-28 10760 Humboldt Bald Mountain Northern Coast Ranges (at Lake Prairie) 1066 Comment
  UC1196405  Spiranthes porrifolia Joseph P. Tracy 1942-6-15 17154 Humboldt Garberville 152 Comment
  JEPS79990  Spiranthes porrifolia Joseph P. Tracy 1937-8-15 15667 Humboldt 15 mi e Orick (Bald Hills); Bald Hills 914 Comment
  HSC18465  Spiranthes romanzoffiana Jana Kattenhorn 1970-10-14 168 Humboldt Big Lagoon Comment
  UC666995  Spiranthes romanzoffiana Joseph P. Tracy 1937-8-12 15640 Humboldt Snow Camp 1402 Comment
  HSC14427  Stachys ajugoides H. E. Parks, S. T. Parks Aug 1943 24252 Humboldt Spruce Cove, Trinidad. 61 Comment
  JEPS62959  Stachys ajugoides Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 15 Comment
  CHSC32901  Stachys ajugoides var. rigida James P. Smith 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  CHSC802  Stachys ajugoides var. rigida 1929-5-6 Humboldt Comment
  JEPS63051  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UCLA70847  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UC1222860  Stachys ajugoides var. rigida Joseph P. Tracy 1950-6-8 18742 Humboldt near Petrolia (at crossing of river, hills between town and Ocean); Bear River 30 Comment
  UCLA71134  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park Comment
  UC1239723  Stachys arvensis H. B. Tucker 1935-3-20 Humboldt Moron Ranch Arcata Bottom 9 Comment
  BLMAR186  Stachys bergii Donald Hazlett 1994-6-7 186 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC59441  Stachys rigida Kenneth Clark 1979-5-29 364 Humboldt 0.1 mi. past end of Granite Ave., along Jolly Giant Creek 23 Comment
  RSA12456  Stachys rigida subsp. quercetorum Carl B. Wolf 1934-6-30 5837 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  SD61050  Stachys rigida var. rigida Darley F. Howe 1964-8-7 3943 Humboldt 8.2 miles from Highway 96 on Mill Creek Road. Hoopa Valley. 1067 Comment
  UC465510  Stellaria borealis subsp. sitchana Harley P. Chandler May 1901 1112 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  HSC56439  Stellaria calycantha Griswold, Butler 1979-7-12 7168 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC99013  Stipa lemmonii var. lemmonii Cara Witte 2007-6-7 231 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC229826  Streptanthus tortuosus Joseph P. Tracy 1922-9-3 6106 Humboldt rocky bluffs at Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  UC1541461  Streptanthus tortuosus var. orbiculatus W. K. Parks July, 1933 Humboldt Buck Mountain Comment
  CDA25184  Streptanthus tortuosus var. tortuosus Kaylea Eickhoff, Cara M. Witte 2005-6-8 4 Humboldt Northwestern California; 1.7 miles south of Highway 299 on Titlow Hill Road. Comment
  HSC58158  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-8-2 12218 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC39184  Symphoricarpos albus var. laevigatus D. E. Anderson, J. P. Smith 1971-6-28 - 1216 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC98898  Symphoricarpos mollis Cara Witte 2007-7-27 609 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1568 Comment
  HSC58831  Symphyotrichum bracteolatum Overton, Butler 1979-8-2 12678 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC99173  Symphyotrichum chilense Alice Eastwood 1923-8-14 12318 Humboldt Samoa Comment
  CAS-BOT-BC99160  Symphyotrichum chilense E. K. Balls 1950-7-17 14927 Humboldt Redwood Hwy, 4 mi. north of Loleta 7 Comment
  CAS-BOT-BC99005  Symphyotrichum eatonii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  JEPS32727  Symphytum asperum Kate Jared Stirring 1923-6-5 Humboldt Arcata Comment
  RSA168800  Symphytum asperum Joseph P. Tracy 1943-10-3 17448 Humboldt Near Iverson dairy ranch, Arcata. Comment
  CAS-BOT-BC376724  Tanacetum bipinnatum David D. Keck; J. Clausen 1935-6-16 3388 Humboldt Mouth of Little River Comment
  UCD150391  Tanacetum bipinnatum Harry A. George; G. M., B. M. 1967-7-11 s.n. Humboldt Humboldt Bay, South Spit. Comment
  CAS-BOT-BC376730  Tanacetum bipinnatum Peter H. Raven 1962-8-31 18079 Humboldt Flats at Dry Lagoon State Park Comment
  HSC90250  Tanacetum bipinnatum Jean Hanson 1980-5-24 58 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  RSA28303  Tanacetum camphoratum E. K. Balls, Percy C. Everett 1953-10-11 18636 Humboldt Big Lagoon on South Shore. 2 Comment
  SD42343  Tanacetum vulgare Carl B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, south side along Redwood Highway 6 Comment
  UC1223046  Taraxacum officinale Joseph P. Tracy 1951-6-24 19542 Humboldt Ashland Ridge Kneeland Prairie 762 Comment
  HSC34631  Taraxacum officinale A. M. Montalvo 1975-4-9 202 Humboldt Arcata Community Forest about .25 mi. up Trail #3 46 Comment
  HSC38883  Tauschia kelloggii J. P. Smith, Steve Selva 1970-6-14 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  RSA254744  Tauschia kelloggii Thomas W. Nelson, James Nelson 1973-5-28 956 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC642291  Tauschia kelloggii Joseph P. Tracy 1936-6-10 14933 Humboldt mountain slopes w mouth South Fork of Trinity River; mountain slopes w of mouth South Fork of Trinity River 457 Comment
  CAS-BOT-BC85210  Taxus brevifolia Joseph P. Tracy 1924-9-7 6862 Humboldt Grizzly Creek on Van Duzen River 91 Comment
  UC13714  Taxus brevifolia Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC666679  Taxus brevifolia H. S. Reed 1938-7-27 192 Humboldt e fork Willow Creek Comment
  UC1198891  Tellima grandiflora Joseph P. Tracy 1949-6-6 18311 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  SEINET12217531  Tellima grandiflora F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -280 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC1196167  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1935-5-25 13825 Humboldt along head of Larrabee Creek Blocksburg 518 Comment
  UC1222570  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1950-7-6 18986 Humboldt Burr Valley Buck Mountain (nw slope of mt., lower end of valley) 1066 Comment
  UC668275  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1937-5-30 15308 Humboldt along creek 3 mi n Blocksburg; Larrabee Creek 457 Comment
  JEPS54039  Thlaspi montanum var. montanum Joseph P. Tracy 1933-7-25 12885 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC81315  Thuja plicata Doris K. Kildale 1926-7-15 2378 Humboldt Camp Bauer - Mad River near Korbel Comment
  HSC31501  Thuja plicata Steve Selva, Roger Jensen 1974-8-27 86 Humboldt Along Hwy. 299 4.5 mi. E of Blue Lake Comment
  JEPS27183  Thuja plicata W. L. Jepson 1902-8-2 2137 Humboldt Wildcat Grade near Ferndale 457 Comment
Read comments
Sep 8 2007
  SDSU1860  Thuja plicata D. F. Howe 1963-8-7 3705 Humboldt 30 miles west of west entrance to Six Rivers National Forest on #299. 183 Comment
  UC275476  Thuja plicata Joseph P. Tracy 1925-3-7 6931 Humboldt North Fork Eel River North Coast Region, North Fork Eel River (around Humboldt Bay) 60 Comment
Read comments
Jul 4 2018
  UC1198814  Thysanocarpus curvipes Joseph P. Tracy 1939-4-29 16242 Humboldt Klamath River at mouth of Slate Creek; Klamath River at mouth of Slate Creek 121 Comment
  CAS-BOT-BC88325  Thysanocarpus curvipes John H. Thomas 1968-4-21 14363 Humboldt Near mouth of Bluff Creek about 6 miles northeast of Weithchpec near Bluff Creek Campground. 140 Comment
  UC161492  Thysanocarpus curvipes Joseph P. Tracy 1903-5-24 1915 Humboldt Alder Point Northern Coast Ranges, Eel River (on Eel River) 152 Comment
  CAS-BOT-BC436907  Tiarella trifoliata var. unifoliata Doris Kildale 1931-5-10 10676 Humboldt Snow Camp Comment
  CAS-BOT-BC436906  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-1 82 Humboldt Near Wilder's Comment
  RSA304700  Tiarella trifoliata var. unifoliata S. Ganley 1971-5-30 1156 Humboldt Ave of Giants; Humboldt State Park. 152 Comment
  UC1073332  Tiarella trifoliata var. unifoliata George B. Rossbach 1955-6-10 299 Humboldt between Route 101 and West Branch of South Fork of Eel River (Stephens Redwood Grove); , btw Rte and W Branch of S Fk Eel Riv Comment
  HSC56107  Tolmiea diplomenziesii G. L. Clifton 1979-7-31 11858 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC11943  Tolmiea diplomenziesii J. Burtt Davy Jun 1899 5628 Humboldt Hoopa Mt.; North Coast Ranges Comment
  CAS-BOT-BC447612  Tolmiea menziesii Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC447613  Tolmiea menziesii Alice Eastwood; John Thomas Howell 1937-6-23 4781 Humboldt Near Dinsmore's Comment
  UCSC000348  Tolmiea menziesii R. Stahelin 1933-5-17 s.n. Humboldt Eureka, Arcata City Park Comment
  HSC73841  Tonella tenella Gail Newton 1980-6-7 134 Humboldt Near Brush Mtn. 1128 Comment
  UC27664  Tonella tenella C. C. Marshall 1888-1 Humboldt Comment
  HSC74725  Torilis arvensis Gail Newton 1981-8-6 2411 Humboldt Near Mad River. 1308 Comment
  HSC3137  Toxicodendron diversilobum Francis Winter 1960-4-24 Humboldt 1 mi. N of Redwood Creek Ranch. 396 Comment
  UC1618532  Tracyina rostrata Robert Ornduff June 1997 10106 Humboldt Northeast of Alderpoint, easterly from Alderpoint-Blocksburg Road ca. 1 km (0.6 mi) on unpaved Stewart Ranch Road Comment
Read comments
Apr 28 2007
  CAS-BOT-BC377100  Tragopogon porrifolius Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC399990  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  SEINET185707  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain; In Trinity Range, Northeast of Hawkins Bar. 1280 Comment
  UC535719  Trichostema lanceolatum Eleanor Armstrong 1934-7-15 1128 Humboldt Richardson Grove 121 Comment
  HSC27399  Trichostema laxum Thomas W. Nelson 1970-9-3 214 Humboldt Mad River. Comment
  UC154002  Trichostema oblongum Joseph P. Tracy 1908-6 2824 Humboldt Buck Mountain, NW slope Northern Coast Ranges 1219 Comment
  HSC17934  Trientalis latifolia J. Sandborg, F. Sandborg May 1968 5 Humboldt Bluff Creek near Notice Creek, hillside 793 Comment
  HSC95824  Trientalis latifolia Kevin Thomas 2004-4-26 16 Humboldt Jacoby Creek Rd. Comment
  UC562555  Trientalis latifolia Joseph P. Tracy 1926-5-22 7509 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC1602051  Trifolium albopurpureum var. dichotomum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 b Humboldt Hoopa Mt. Comment
  UC160914  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1908-6-9 2652 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  BLMAR385  Trifolium angustifolium Jennifer Anthony-Wheeler 2004-6-28 385 Humboldt King range, Mouth of Mattole River, along road in willow thickets 36 Comment
  UC1223512  Trifolium barbigerum Joseph P. Tracy 1939-4-18 16213 Humboldt w side South Fork of Eel River (Garberville) 152 Comment
  UC1197054  Trifolium bifidum var. decipiens Joseph P. Tracy 1948-6-13 18027 Humboldt near Burr Creek, 5 miles SE of Bridgeville, Hillside Comment
  UC1223501  Trifolium bifidum var. decipiens Joseph P. Tracy 1950-6-8 18744 Humboldt 1 mi e Cape Mendocino (Cape Ridge, roadside near top of ridge) 152 Comment
  UC1223327  Trifolium campestre Joseph P. Tracy 1936-8-1 15060 Humboldt 6 mi se Blue Lake (near Bear Canyon Creek, in logged-off country) 365 Comment
  UC1223483  Trifolium cyathiferum Joseph P. Tracy 1937-7-19 15458 Humboldt lower foothills northwest slope; Buck Mtn Comment
  UC249727  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1921-5-30 5480 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA168861  Trifolium dichotomum Joseph P. Tracy 1943-5-9 17420 Humboldt Trinity River at Willow Creek. Comment
  UCD108818  Trifolium dubium Linda M. Barker 1976-5-13 1476 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET12147892  Trifolium eriocephalum J. P. Tracy 1933-1 12647 Humboldt Brannan Mountain 1067 Comment
  POM214888  Trifolium eriocephalum subsp. eriocephalum Joseph P. Tracy 1930-7-6 8835 Humboldt Kneeland Prairie. Comment
  RSA135394  Trifolium eriocephalum subsp. eriocephalum Volney Rattan 1878-1 s.n. Humboldt Kneeland Prairie. Comment
  UC495651  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8770 Humboldt Larrabee valley Northern Coast Ranges 701 Comment
  UC495654  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-7-6 8835 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC1864  Trifolium fucatum Elrid H. Spinas 1948-5-15 20 Humboldt Horse Mtn. Comment
  UC303193  Trifolium fucatum Joseph P. Tracy 1923-5-13 6203 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC1197188  Trifolium gracilentum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3602 Humboldt near Hydesville; Northern Coast Region Comment
  HSC69635  Trifolium incarnatum R. Kalal 1980-5-18 23 Humboldt Along Hwy. 101 11 Comment
  HSC45143  Trifolium microcephalum R. Sutherland 1978-5-12 12 .12578 Humboldt 282 Comment
  UC1197543  Trifolium microdon J. P. Tracy 1911-5-30 3202 Humboldt Bucksport Eureka vicinity 0 Comment
  HSC38634  Trifolium obtusiflorum D. E. Anderson, J. P. Smith 1971-6-28 - 1257 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UC1197504  Trifolium obtusiflorum Joseph P. Tracy 1914-5-30 4480 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UC1103444  Trifolium oliganthum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3609 Humboldt near Hydesville; Northern Coast Region Comment
  HSC15170  Trifolium repens J. L. Baker 1965-4-24 16 Humboldt 4 mi. N of Arcata on N. Bank Rd., Humboldt Meridian Comment
  UCD109372  Trifolium repens Tofsrud 1948-9-1 s.n. Humboldt 3 mi. S. of Scotia. Comment
  UC1197045  Trifolium resupinatum J. P. Tracy 1896-5 105 Humboldt immediate vicinity Eureka (J and 14th St.) 0 Comment
  UCD109391  Trifolium subterraneum R. Tofsrud 1949-7-1 s.n. Humboldt Talarook, Hydesville. Comment
  HSC45116  Trifolium variegatum R. Sutherland, R. Sutherland 1978-5-19 13 .19578 Humboldt 134 Comment
  UC1223542  Trifolium variegatum Joseph P. Tracy 1933-7-9 12649 Humboldt Brannan Mtn 1066 Comment
  UC1223529  Trifolium variegatum var. variegatum Joseph P. Tracy 1937-6-20 15336 Humboldt 10 mi upstream mouth of Bear River 152 Comment
  JEPS4388  Trifolium willdenovii W. L. Jepson 1934-5-7 16686 Humboldt Dyerville Comment
  UC1197513  Trifolium willdenovii Joseph P. Tracy 1927-5-15 8037 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  JEPS4167  Trifolium willdenovii W. L. Jepson 1902-6 1904 Humboldt Fort Seward Ranch Ridge = Mail Ridge 1219 Comment
  UCD109861  Trifolium willdenovii A. H. Murphy 1947-5-15 s.n. Humboldt In Klamath weed field, 3 miles south of Blocksburg. Comment
  RSA168905  Trifolium wormskioldii Joseph P. Tracy 1938-7-24 16087 Humboldt Corner of Pacific and A Streets. Eureka. Comment
  RSA639406  Trifolium wormskioldii Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35225 b Humboldt Samoa Peninsula. 3 Comment
  UC1223373  Trifolium wormskioldii Joseph P. Tracy 1950-6-8 18714 Humboldt 2 mi s Ferndale (near the Sand Cut, Wild Cat Rd) Comment
  CAS-BOT-BC451808  Triglochin maritima Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  HSC59060  Triglochin maritima Thomas Wood 1979-5-4 154 Humboldt Big Lagoon Bog, N side, between the bog and the sea 0 Comment
  HSC82964  Triglochin maritima A. L. Eicher 1986-5-10 Humboldt Bordering Humboldt Bay, 0.3 mi. S of the jct. of Samoa Blvd. and Vance Ave. 1 Comment
  HSC101809  Trillium albidum Kjirsten A. Wayman 2012-4-6 307 Humboldt Martin's Ferry Road, northwest of Weitchpec, near mile marker 32, east side of road 137 Comment
  UC146219  Trillium albidum Joseph P. Tracy 1905-4-2 2155 Humboldt region about Humboldt Bay near Arcata; Northern Coast Region, Humboldt Bay 0 Comment
  CHSC2320  Trillium ovatum 1933-4-15 Humboldt 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
  HSC39526  Trillium ovatum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2714 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC71798  Trillium ovatum Gail Newton 1980-6-16 169 Humboldt Near Monks Camp. 1097 Comment
  HSC89492  Trillium ovatum P. A. Daly 1986-2-28 59 Humboldt Trinidad Head, along trail 61 Comment
  HSC15703  Trillium ovatum W. F. Nickel 1965-4-3 Humboldt 5 mi. SE of Fern Canyon in Prairie Creek Redwoods State Park, on rd. to Fern Canyon Comment
  UCD139909  Trillium ovatum Roman Gankin 1956-3-17 105 Humboldt south boundary of Jensen Grove, off U.S. Highway 101. Comment
  CAS-BOT-BC521320  Trillium rivale J. H. Thomas 1949-6-12 897 Humboldt 2 miles west of Matins Ferry on road to Orick. Comment
  UC198870  Triodanis biflora Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  SEINET10459885  Triodanis perfoliata Rattan 1883-6-30 RATTAN s.n. Humboldt REDWOOD CREEK Comment
  SEINET10459937  Triodanis perfoliata Willis L. Jepson Jepson 1940 Humboldt REDWOOD CREEK Comment
  UC1199622  Triphysaria eriantha subsp. eriantha Harley P. Chandler May 1901 1142 Humboldt Humboldt Bay; North Coast Ranges Comment
  HSC20849  Triphysaria eriantha subsp. eriantha B. Francis 1964-5-19 45 Humboldt 0.5 mi. S of Fairhaven Comment
  UC1222444  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1927-4-24 7929 Humboldt Eureka 6 Comment
  JEPS11165  Triphysaria versicolor subsp. versicolor J. P. Tracy 1944-5-14 17467 Humboldt Eureka Comment
  HSC38626  Trisetum cernuum D. E. Anderson, J. P. Smith 1971-6-18 - 1102 Humboldt Under bridge over Redwood Creek on Hwy. 299 Comment
  UCD93903  Trisetum cernuum P. B. Kennedy 1923-8-3 s.n. Humboldt South of Scotia. By road through red woods off highway. Comment
  HSC98615  Triteleia hyacinthina Cara Witte 2008-8-6 1011 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  UC144101  Triteleia laxa Joseph P. Tracy 1909-7-31 3035 Humboldt Knneland Prairie Northern Coast Ranges 762 Comment
  UC15045  Triteleia peduncularis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5503 B Humboldt North Coast Ranges Comment
  UCD135133  Tsuga heterophylla Linda M. Barker 1976-6-14 1589 Humboldt Lanphere-Christensen Dunes, coastal forest and dunes 3 miles west of Arcata. Comment
  CAS-BOT-BC85894  Tsuga heterophylla L. R. Abrams 1918-6-17 7211 Humboldt Between Briar's Resort and Bald Mt. Comment
  UC1585363  Umbellularia californica R. Raiche, K. Zadnik, and H. Forbes 1989-2-10 Humboldt just w of Pine Ridge Summit (w of Hoopa, Bair Road); Bair Road 840 Comment
  HSC59133  Urtica dioica subsp. gracilis Terry Roth 1979-5-20 65 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  HSC96264  Vaccinium cespitosum Eric Schori, Kazuyuki Ishimaru 2005-6-24 16 Humboldt Branch rd. off Titlow Hill Rd., Buck Flat 1570 Comment
  HSC34153  Vaccinium ovatum Linda M. Barker 1974-5-11 186 Humboldt Redwoods National Park, beside Bald Hills Road 366 Comment
  HSC90226  Vaccinium ovatum L. Watson, J. Meninga Mar 1991 20 Humboldt Near Manilla, Mad River Slough and Dunes N of parking lot, W of trail Comment
  POM232033  Vaccinium ovatum I. L. Wiggins 1930-6-25 4613 Humboldt Sand dunes 2 miles north of Samoa. Comment
  RSA134586  Vaccinium ovatum P. C. Everett, E. K. Balls, George B. Everett 1959-10-26 23974 Humboldt 4 mi. se from Honeydew along Old Coast Road to Ettersburg. 457 Comment
  SBBG21991  Vaccinium ovatum R. F. Thorne 1957-9-2 18997 Humboldt Burlington State Park, just S of Weott Comment
  SEINET3107074  Vaccinium ovatum Steve Selva, Roger Jensen 1974-8-28 96 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  UC1174843  Vaccinium ovatum P. C. Everett and E. K. Balls 1959-10-26 23974 Humboldt 4 mi se Honeydew (along Old Coast Road to Ettersburg) 457 Comment
  UC1193357  Vaccinium ovatum R. H. Neuns 1950-7-13 133 Humboldt 3 mi s Alder Point (Quad. 29D2) 548 Comment
  HSC7913  Vaccinium ovatum J. Pursell 1964-10-18 10184 Humboldt 1 mi. N from Hwy. 299 on Bald Mountain Rd. Comment
  HSC31220  Vaccinium parvifolium D. E. Anderson 1972-6-20 5729 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  SEINET12318510  Vahlodea atropurpurea K. S. Erdman 1970-1 4819 Humboldt Redwood National Park, summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glen Comment
  HSC97947  Valeriana californica Cara Witte 2007-6-26 359 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/4 mile east from intersection with National Forest 1. 1457 Comment
  UC198661  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, Eel River 60 Comment
  HSC57994  Vancouveria hexandra G. L. Clifton, Griswold 1979-7-31 11757 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CDA24421  Vancouveria hexandra E. C. Whitney 1968-6-21 Humboldt Toleman Place, Rio Dell. 0 Comment
  HSC49387  Vancouveria hexandra R. York 1979-4-9 213 Humboldt Behind Humboldt State University Comment
  HSC69623  Vancouveria hexandra R. Kalal 1979-5-20 68 Humboldt Fickle Hill Rd., 1 mi. E of 11th St. 189 Comment
  UC1541238  Vancouveria hexandra Harold E. Parks May 1933 4288 Humboldt near Trinidad; near Trinidad Comment
  HSC33418  Vancouveria planipetala Thomas W. Nelson 1974-5-30 1344 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  SJSU924  Vancouveria planipetala J. W. Tilden 1946-7-20 1019 Humboldt Bluff Cr c. 1.5 mi above its junction with Klamath R Comment
  SEINET3992208  Veratrum insolitum Unknown 1948-9-12 18213 Humboldt 1 mi. W. of Box Camp 1372 Comment
  HSC21176  Verbascum blattaria David Adams 1960-8-20 Humboldt Whitlow (Sequoia) 60 Comment
  HSC64192  Veronica americana J. O. Sawyer, M. A. Ericksen 1979-6-23 3376 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  JEPS16846  Veronica americana W. L. Jepson 1934-5-7 16707 Humboldt Bull Creek Comment
  UCD124661  Veronica americana Malcolm A. Nobs; S. Galen Smith 1949-8-9 1227 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  HSC92212  Veronica anagallis-aquatica D. E. Anderson, Thomas W. Nelson 1972-5-9 Humboldt Just W of Weitchpec on the road to Pecwan Comment
  HSC78977  Veronica peregrina subsp. xalapensis L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 720 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  JEPS16498  Veronica scutellata Milo S. Baker 1923-8-3 173 Humboldt 6 mi n of Arcata; North Coast trip Comment
  RSA249386  Veronica serpyllifolia var. humifusa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5584 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  SEINET12157686  Vicia americana J. P. Tracy 1942-1 17231 Humboldt Trinity Summit, near Box Camp 1524 Comment
  HSC2102  Vicia americana var. americana Elrid H. Spinas 1948-6-16 54 Humboldt Horse Mtn. Comment
  UC1197463  Vicia americana var. americana J. P. Tracy 1901-5-30 1111 Humboldt immediate vicinity Eureka 0 Comment
  JEPS66131  Vicia americana var. americana Lincoln Constance 1934-6-12 873 Humboldt Dyerville South Fork Eel River, Bull Creek Region (Bull Creek road and n bank of South Fork Eel River) Comment
  HSC89513  Vicia gigantea M. Roantree 1985-4-25 7 Humboldt E side of Trinidad Head Comment
  UC17003  Vicia gigantea Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5434 Humboldt near Hubbard Station Comment
  HSC15260  Vicia hirsuta Harvey Doerksen 1962-5-8 19 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  RSA34309  Vicia hirsuta C. Kistner 1935-5-5 s.n. Humboldt Arcata Comment
  HSC100544  Vicia sativa Carl C. Marshall Sep 1887 442 Humboldt Salmon Creek. Comment
  RSA750840  Vicia sativa subsp. sativa Robert F. Thorne, Percy C. Everett 1965-8-8 35242 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  UCSB61648  Vicia tetrasperma Ertter, Barbara; Delendick, Thomas 1987-5-16 Humboldt Hwy 299 roadside ca. 8 mi E of Arcata, 9 1/2 mi W of Lord Ellis summit Comment
  HSC3229  Vinca major N. R. Waite 1965-5-18 35 Humboldt Along Hwy. 101, W of Humboldt State College campus. Comment
  HSC96079  Viola adunca Andrew Byers, Stuart E. Richardson, III 2005-6-10 8 Humboldt 7.4 mi. S of Hwy. 299 on NF1; Coldspring Camp 1357 Comment
  UC1198429  Viola adunca Joseph P. Tracy 1918-4-14 4872 Humboldt s end of Dows Prairie; Northern Coast Ranges 30 Comment
  HSC64215  Viola glabella J. O. Sawyer, M. A. Ericksen 1979-6-23 3386 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC72691  Viola glabella Gail Newton 1980-6-24 548 Humboldt Near Ladder Rock 1500 Comment
  HSC74650  Viola glabella M. A. Baker 1980-5-17 1242 Humboldt Near Le Perron Peak 1066 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
  CAS-BOT-BC536496  Viola glabella A. M. Vollmer; L. Beane 1951-6-8 134 Humboldt Grizzly Camp, State Hwy 36 Comment
  CAS-BOT-BC536497  Viola glabella W. R. Dudley 1899-6-19 s.n. Humboldt Shady Run -- Scotia Comment
  UC1198458  Viola glabella Joseph P. Tracy 1913-6-20 4222 Humboldt in valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC32079  Viola hallii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5593 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC96539  Viola macloskeyi Gordon Leppig 1998-5-11 761 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  JEPS50250  Viola macloskeyi Hilda W. Grinnell 1932-7-19 30 Humboldt McKay Camp; South Fork Mountain, McKay Camp 1676 Comment
  UCD110697  Viola ocellata R. N. Raynor 1935-4-15 s.n. Humboldt Fort Seward. Comment
  HSC21827  Viola ocellata J. F. Knezevich 1967-6-1 171 Humboldt 5 mi. E of Willow Creek on Hwy. 299 Comment
  RSA80528  Viola ocellata Joseph P. Tracy 1938-5-1 15731 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  BLMAR619  Viola praemorsa Jennifer Wheeler 2011-5-24 619 Humboldt Lacks Creek, Stormy saddle 975 Comment
  UC249588  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek; Northern Coast Ranges, South Yager Creek Comment
  HSC84493  Viola praemorsa subsp. praemorsa R. Earing, C. Cavanaugh, C. Collins 1987-4-24 95 Humboldt 24 mi. E of Blue Lake on Titlow Hill Rd., ca. 1/2 mi. from Hwy. 299 854 Comment
  HSC67183  Viola purpurea subsp. integrifolia Thomas W. Nelson, Jane P. Nelson 1980-6-10 5434 Humboldt Along E side of Red Mtn. 1372 Comment
  UC709441  Viola sempervirens Joseph P. Tracy 1941-4-8 16854 Humboldt head of Willow Creek ( Willow Creek Canyon, along Trinity Highway); Willow Creek Canyon, Willow Creek 762 Comment
  UC727172  Viola sempervirens A. A. Heller 1924-7-23 13877 Humboldt Trinidad Head Comment
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Sep 29 2006
  HSC12233  Viola sempervirens Gary J. Stebbins 1970-2-2 3 Humboldt In Big Lagoon Park 2.7 mi. W of U.S. 101 Comment
  SEINET11154271  Viola sempervirens J. P. Tracy 1904-4-3 2006 Humboldt Eureka 0 Comment
  UC1198442  Viola sheltonii Joseph P. Tracy 1935-7-24 14167 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  HSC86306  Viola sheltonii K. Berg, R. Bonning 1983-5-21 487 Humboldt 6.1 mi. from Berry Summit and Hwy. 299 1494 Comment
  JEPS40249  Vitis californica W. L. Jepson 1921-9-11 9463 Humboldt DeVoy Flat South Fork Eel River (on river bank) Comment
  SEINET3132612  Vulpia microstachys var. microstachys D. E. Anderson, JO Sawyer, JP Smith Jr. 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, ca. 1-3 mi. W of Hoopa Comment
  UC187308  Vulpia microstachys var. microstachys Joseph P. Tracy 1902-6-3 1672 Humboldt near Fruitland Comment
  RSA121356  Vulpia microstachys var. pauciflora H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  SEINET200329  Vulpia microstachys var. pauciflora Joeseph P. Tracy 5818 Humboldt Kneeland Prairie 762 Comment
  UC1145192  Vulpia microstachys var. pauciflora Joseph P. Tracy 1942-6-23 17224 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC1103713  Vulpia myuros var. hirsuta Joseph P. Tracy 1941-6-15 16908 Humboldt 609 Comment
  HSC101659  Whipplea modesta J. P. Smith, J. O. Sawyer 2011-4-23 13119 Humboldt Along Salmon Creek Rd., 4.6 miles from its junction with U.S. 101. 290 Comment
  HSC79383  Wyethia angustifolia Kenneth Clark 1981-5-24 1393 Humboldt Abalone Pt. 15 Comment
  CAS-BOT-BC326979  Wyethia longicaulis Volney Rattan 1878-1-1 s.n. Humboldt Mad River Comment
  CAS-BOT-BC326980  Wyethia longicaulis Doris K. Kildale 1926-6-9 2148 Humboldt Horse Mountain 1219 Comment
  HSC71800  Wyethia longicaulis M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  HSC73870  Wyethia longicaulis Gail Newton 1980-7-14 1462 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC15736  Xerophyllum tenax D. E. Anderson 1965-6-1 3774 Humboldt On ridge along Friday Hill Rd., about 2 mi. from its junction with Titlow Hill Rd. 1159 Comment
  HSC12015  Zeltnera muehlenbergii Wilbur Peterson 1970-10-31 102 Humboldt Scotia Bluffs, edge of Eel River Comment
  HSC25957  Zeltnera muehlenbergii Thomas W. Nelson 1970-10-31 285 Humboldt Eel River near the N end of the Scotia Bluff Comment
  HSC98861  Zigadenus micranthus Cara Witte 2007-5-29 128 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC104124  Zostera marina Justin Garwood 2015-7-5 Humboldt Comment
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Mar 1 2018



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