Search Results — 2000 specimen records retrieved (1397 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA54126  Abies concolor Henry M. Pollard 1944-09 s.n. Humboldt Near Orleans. Comment
Read comments
Oct 1 2019
  SD136394  Abies grandis Doris Kildale Niles 1941-7-25 Humboldt Arcata Comment
  SD42383  Abies grandis Doris Kildale Niles 1941-7-25 Humboldt Arcata Comment
  BLMAR72  Abronia latifolia Jennifer Anthony-Wheeler 1994-5-18 72 Humboldt Samoa/manilla dunes, growing throughout dunes 6 Comment
  CHSC32897  Abronia latifolia J. P. Smith; Advanced Taxonomy Class 1971-10-6 4946 Humboldt Dunes at the end of Murray Road in McKinleyville. Comment
  HSC37927  Abronia latifolia Peter Sorensen 1976-5-28 Humboldt N spit Comment
  HSC69787  Abronia latifolia R. Kalal 1979-5-27 35 Humboldt Along Samoa Blvd. 3 Comment
  RSA0025087  Abronia latifolia Lyman Benson 1928-7-10 449 Humboldt Clam Beach, Trinidad. 9 Comment
  SBBG11207  Abronia latifolia D. E. Breedlove 1961-7-4 664 Humboldt US Hwy 101, 28.7 mi N of jct US 299 and US 101 3 Comment
  CAS-BOT-BC436976  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile northwest of Fieldbrook Comment
  UC205487  Acer circinatum Joseph P. Tracy 1920-10-24 5403 Humboldt Mad River bottom near Blue Lake (Northern Coast Ranges); , Mad River bottom nr Blue Lake 60 Comment
  CAS-BOT-BC330606  Acer glabrum var. glabrum Carl B. Wolf 1937-9-13 9336 Humboldt North Coast Range, Clear Lake between Horse Mt. & Grouse Mt. 1524 Comment
  HSC12932  Acer macrophyllum C. E. Fellows 1970-11-9 351 Humboldt HSC Campus, S side Bio Greenhouse Comment
  HSC2814  Acer macrophyllum Elrid H. Spinas 1948-6-16 61 Humboldt Horse Mtn. Comment
  HSC31652  Acer macrophyllum Timothy B. Devine 1974-5-4 318 Humboldt 1/4 mi. N of junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  UC1199012  Acer macrophyllum Joseph P. Tracy 1912-3-31 3569 Humboldt near mouth Lindsey Creek (Mad River); Northern Coast Ranges, Mad River 30 Comment
  UC1199013  Acer macrophyllum Joseph P. Tracy 1914-8-23 4592 Humboldt in valley of North Fork of Elk River Northern Coast Region, Humboldt Bay, North Fork Elk River (Region about Humboldt Bay) 0 Comment
  UC452623  Acer macrophyllum P. E. Goddard 1901-7 47 Humboldt Hupa Valley Hupa Valley (Mendocino and Humboldt Counties) Comment
  CDA9169  Achillea millefolium T. C. Fuller 1958-6-17 613 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC4562  Achillea millefolium Lincoln Constance 1934-5-29 716 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  HSC58099  Achillea millefolium G. L. Clifton, Griswold 1979-8-1 12027 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC161537  Achlys triphylla subsp. triphylla Joseph P. Tracy 1911-7-7 3423 Humboldt near summit Brannan Mt. (ridge n. of Willow Creek, between Willow and Campbell Creeks) 1219 Comment
  UC40043  Achnatherum lemmonii Bolander 1866-4 Humboldt Red Mountain Comment
  UC552726  Achnatherum lemmonii Joseph P. Tracy 1935-6-23 13964 Humboldt French Camp Ridge 1066 Comment
  UCD50670  Achnatherum lemmonii A. H. Murphy 1951-6-25 71 Humboldt 1 mile east of Snow Camp, ca. 8 miles e.n.e. of Kneeland. Humboldt County, California. Comment
  RSA10032  Achnatherum nevadense Joseph P. Tracy 1932-7-12 10446 Humboldt Open ground at Corral Prairie, Trinity Summit, Klamath Mountains. 1524 Comment
  UC526665  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-12 10473 Humboldt Head of Brett Hole Klamath Mountains, Brett Hole 1828 Comment
  UC668212  Achyrachaena mollis Joseph P. Tracy 1938-6-9 15889 Humboldt 2 mi w on top of ridge Harris 914 Comment
  SEINET15325313  Acmispon brachycarpus H. P. Chandler 1901-1 1308 Humboldt Hupa Indian Reservation Comment
  HSC40403  Acmispon micranthus Linda M. Barker 1976-5-13 1493 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC44755  Acmispon micranthus Maralyn O'Meara 1972-6-8 84 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC48684  Aconitum columbianum subsp. columbianum Brad Klipfel 1973-7-31 238 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1102641  Adiantum X tracyi J. Neeman 1948-1 Humboldt near Garberville Comment
  HSC39158  Adiantum aleuticum D. E. Anderson, J. P. Smith 1971-6-28 - 1250 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  CAS-BOT-BC65624  Adiantum jordanii Joseph P. Tracy 1895-9-1 6868 Humboldt near Pepperwood 30 Comment
  UC197911  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  UC668172  Aesculus californica Joseph P. Tracy 1937-6-20 15357 Humboldt 10 mi upstream from the mouth Bear River 152 Comment
  UC577348  Agastache urticifolia Joseph P. Tracy 1932-7-13 10498 Humboldt Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC1222668  Agastache urticifolia Joseph P. Tracy 1950-8-8 19279 Humboldt Croghan Hole Trinity Summit; , Croghan Hole 1676 Comment
  HSC12532  Agoseris grandiflora Jos. Burtt Davy 1899-6-21 5727 Humboldt Hoopa Valley Comment
  HSC74690  Agoseris grandiflora Gail Newton 1981-8-7 2464 Humboldt Near Board Camp Mtn. 1478 Comment
  UC92278  Agoseris heterophylla var. heterophylla W. W. Price 1900-6-30 Humboldt Mad River Comment
  UC180186  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1914-7-5 4558 Humboldt High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC249842  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  UC249882  Agoseris retrorsa Joseph P. Tracy 1923-6-3 6256 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC1198339  Agrostemma githago Joseph P. Tracy 1899-4-23 310 Humboldt Eureka; Northern Coast Region 0 Comment
  UC249861  Agrostis alba Joseph P. Tracy 1924-8-17 6819 Humboldt wet places in woods Northern Coast Ranges, Trinidad 60 Comment
  SEINET200937  Agrostis diegoensis Joseph P. Tracy 1932-7-17 10661 Humboldt Trinity Summit 1524 Comment
  CAS-BOT-BC127284  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  CAS-BOT-BC127290  Agrostis exarata C. L. Hitchcock; C. V. Muhlick 1963-7-14 22909 Humboldt Along Eel River at Fern bridge. Comment
  HSC75270  Agrostis exarata J. O. Sawyer, M. A. Ericksen 1980-8-18 4058 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  UC186906  Agrostis exarata Joseph P. Tracy 1904-7-31 2127 Humboldt sedge swamp Northern Coast Region, Eureka 0 Comment
  UC249864  Agrostis exarata Joseph P. Tracy 1924-7-13 6731 Humboldt in bog Northern Coast Region, Big Lagoon 6 Comment
  UC815014  Agrostis exarata H. E. Parks 1935-6-1 5607 Humboldt Spruce Cove Trinidad Comment
  UCD52425  Agrostis exarata J. E. Street 1950-6-24 s.n. Humboldt Bryalands. Comment
  CAS-BOT-BC139496  Agrostis hallii Henry M. Pollard 1948-7-19 s.n. Humboldt River Road, Orleans to Red Cap Creek. Comment
  CAS-BOT-BC139504  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  CHSC69848  Agrostis hallii Leonel Arguello 1989-8-20 Humboldt Collected at the Lanphere-Christensen Dunes Preserve 3 miles west of Arcata. Growing alongside North Dune Loop trail about 40 yards from the Salt Marsh trail. Comment
  RSA10065  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt French Camp Ridge 1067 Comment
  UC187289  Agrostis hallii J. P. Tracy 1901-6-30 1213 Humboldt immediate vicinity Eureka 0 Comment
  UC511548  Agrostis hallii Ira L. Wiggins 1932-7-25 5896 Humboldt roadsides near McKinleyville Comment
  SBBG53087  Agrostis longiligula R. N. Philbrick, J. R. Haller 1976-6-25 7 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  UCD53043  Agrostis microphylla Joseph P. Tracy 1936-6-8 14873 Humboldt Trinidad. 3 Comment
  UC212862  Agrostis pallens Joseph P. Tracy 1919-9-18 5232 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  HSC76537  Agrostis scabra D. K. Imper 1981-8-12 910 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  UC526778  Agrostis variabilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8948 Humboldt along summit South Fork Mountain (near Blake lookout); Northern Coast Ranges, along summit South Fork Mountain 1737 Comment
  HSC65424  Aira caryophyllea J. P. Smith, J. O. Sawyer 1973-5-12 6683 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  SEINET185294  Aira caryophyllea Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15072 Humboldt Coolidge Tree Redwood Park Comment
  UC50685  Aira caryophyllea Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5474 Humboldt Elk Prairie Comment
  UCD55699  Aira caryophyllea A. H. Murphy 1951-6-1 51 Humboldt O. O. Davis Ranch. South slope of South Fork Mtn., 3 miles E of Low Gap, in Erickson Glade. Comment
  HSC102643  Aira elegans J. P. Smith 2009-5-31 12605 Humboldt Bald Hills Road. Comment
  CAS-BOT-BC138195  Aira praecox Joseph P. Tracy 1925-5-24 7013 Humboldt Northern Coast Ranges. Eureka. 60 Comment
  SEINET3917480  Aira praecox Paul Dryden 1975-5-24 203 Humboldt Samoa Dunes. Dunes off Samoa Blvd. across from the boat landing.; 0 Comment
  HSC102113  Allium amplectens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1017 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC58355  Allium amplectens Overton, Butler 1979-8-2 12699 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  POM169690  Allium bolanderi H. P. Chandler 1901-06 1434 Humboldt Klamath River. Comment
  HSC99529  Allium campanulatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 193 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  UCR39798  Allium falcifolium D. K. Imper 1982-7-1 s.n. Humboldt Six Rivers National Forest. Lassics Lookout & road to Pine Mtn. 1524 Comment
  HSC66828  Allium hoffmanii M. A. Baker 1980-7-11 2791 Humboldt Near Red Mtn. 1341 Comment
  HSC81792  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5935 Humboldt Along old trail to pond, 0.5 mi. N of Alder Spring 1555 Comment
  UC666906  Allium membranaceum Joseph P. Tracy 1929-6-3 8599 Humboldt Trinity River Valley at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  SDSU11522  Allium unifolium unknown, Santa Ana Botanic Gaden 1940-5-20 Humboldt Coast Ranges Monterey Comment
  UC275536  Allium unifolium Joseph P. Tracy 1923-7-4 6531 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  UC666923  Allium unifolium Joseph P. Tracy 1927-6-8 8119 Humboldt on coast bluffs s Luffenholz Creek; Trinidad 30 Comment
  CAS-BOT-BC170943  Alnus rhombifolia Doris K. Kildale 1926-8-8 2457 a Humboldt Dyerville Brdige on South Fork of Eel River 45 Comment
  CAS-BOT-BC170949  Alnus rhombifolia Lyman Benson 1929-7-19 1878 Humboldt Mouth of Matole [Mattole] River Comment
  RSA46860  Alnus rhombifolia Doris K. Kildale 1926-8-8 2457 a Humboldt South Fork of Eel River between mouth of Bull Creek and Dyerville bridge. 91 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
  HSC62778  Alnus rubra M. Dean Griswold Jr. 1979-5-30 89 Humboldt Along rd. up Jolly Giant Creek Comment
  HSC99634  Alnus rubra Will Ferrand 2002-4-27 28 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  UC1197948  Alnus rubra Joseph P. Tracy 1924-8-17 6823 Humboldt Trinidad Northern Coast Ranges 60 Comment
  SEINET12430631 Image available Alnus rubra J. M. Tucker 1948-9-5 1865 Humboldt Along Hwy 101 3 mi S of Scotia Comment
  JEPS79807  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  UCD55914  Alopecurus saccatus A. A. Beetle; J. P. Tracy, G. L. Stebbins 1942-6-2 3464 Humboldt 1 mile E of Alton. Comment
  UC673032  Amaranthus albus Joseph P. Tracy 1940-10-15 16756 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC13704  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15688 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  HSC5657  Ambrosia chamissonis H. E. Parks Sep 1941 24214 Humboldt Mouth of Little River Comment
  JEPS40954  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt along coast in front of s end of Stone Lagoon; Dry Lagoon, Stone Lagoon 3 Comment
  HSC79544  Ambrosia chamissonis Kenneth Clark 1981-5-24 1396 Humboldt 100 yards W of Deadman's Gulch 3 Comment
  HSC18528  Amelanchier alnifolia var. semiintegrifolia D. E. Anderson 1964-4-24 3541 Humboldt 0.5 mi. from junction of Hwy. 299 along Titlow Hill Rd. Comment
  CDA18243  Ammophila arenaria G. D. Barbe, T. C. Fuller 1974-6-19 1881 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 7 Comment
  SEINET200930  Ammophila arenaria J. P. Tracy 1918-7-28 5087 Humboldt Humboldt Bay particularly Samoa Comment
  CAS-BOT-BC213954  Amsinckia H. E. Parks; J. P. Tracy 1930-5-25 881 Humboldt Near Bridgeville. Comment
  UC54750 Image available Amsinckia intermedia Mrs. M. H. Manning 1901-1 156 Humboldt near Hupa; ; near Hupa Comment
  RSA0090986  Amsinckia intermedia H. E. Parks, J. Tracy 1930-5-25 881 Humboldt Near Bridgeville. Comment
  HSC17844  Anagallis arvensis W. F. Nickel 1965-5-6 Humboldt On Humboldt State University campus, behind Biological Science Bldg. Comment
  HSC89440  Anagallis arvensis P. A. Daly 1984-7-16 29 Humboldt Trinidad Head 61 Comment
  CAS-BOT-BC45135  Anaphalis margaritacea Doris K. Kildale 1925-7-2 899 Humboldt Table Bluff Comment
  HSC69754  Anaphalis margaritacea Thomas W. Nelson 1977-9-22 3753 Humboldt At turnoff to Arcata Redwood Co. Comment
  UC1199417  Anaphalis margaritacea Joseph P. Tracy 1937-7-29 15578 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC12550  Anaphalis margaritacea C. Kline 1970-11-15 71 Humboldt Clam Beach Lagoon Comment
  CAS-BOT-BC391784  Anemone deltoidea Mrs. H. C. Cantelow 1936-5-17 1387 Humboldt About 11 mi. E. of Orick Comment
  HSC55682  Anemone deltoidea Overton, Butler 1979-7-26 9935 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  UC13934  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
Read comments
Sep 17 2012
  UC582636  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  JEPS16069  Angelica hendersonii W. L. Jepson 1902-8-3 2133 Humboldt Loleta, Expedition from Ukiah to the Hupa Indian Reservation Loleta 60 Comment
  UCD127226  Angelica hendersonii Joseph DiTomaso 1980-6-29 1634 Humboldt north side of Elkshead. 2 miles north of Trinidad. Comment
  UC1400338  Angelica lucida Robert F. Thorne and P. Everett 1965-8-9 35337 Humboldt along Hwy 101 about 3 mi n Eureka 1 Comment
  HSC41310  Angelica tomentosa Brad Klipfel 1974-9-2 545 Humboldt Horse Mtn. Comment
  HSC56203  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-8-2 12194 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC81929  Anisocarpus madioides Thomas W. Nelson, Jane P. Nelson 1979-7-3 4950 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UC127608  Anisocarpus madioides Mrs. M. H. Manning June 1902 Humboldt Hupa Comment
  CAS-BOT-BC271451  Anisocarpus madioides Henry M. Pollard 1948-7-23 s.n. Humboldt Perch Creek canyon, near Orleans Comment
  UC302293  Anisocarpus madioides Joseph P. Tracy 1926-6-13 7605 Humboldt near Blue Lake; Northern Coast Ranges 152 Comment
  UC205188  Antennaria media Joseph P. Tracy 1919-9-24 5293 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  HSC56940  Antennaria suffrutescens Overton, Butler 1979-7-23 9419 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UCD56156  Anthoxanthum aristatum K. L. Chambers 1984-6-16 5150 Humboldt Bald Hills Road, 7.0 miles past Lady Bird Johnson Grove, Redwood National Park, east of Orick. Comment
  CAS-BOT-BC289126  Anthoxanthum occidentale Joseph P. Tracy 1918-4-21 4882 Humboldt Old Kneeland Road, around Humboldt Bay 304 Comment
  HSC39951  Anthoxanthum occidentale Linda M. Barker 1976-2-22 1312 Humboldt 3 mi. W of Arcata Comment
  UCD85343  Anthoxanthum occidentale Linda M. Barker 1976-2-22 1312 Humboldt Coast forest and dunes 3 miles west of Arcata. Comment
  HSC8947  Anthoxanthum odoratum T. L. Ackerman 1964-4-12 34 Humboldt One mi. up a logging road N from an elementary school near Freshwater Corners Comment
  UCD56164  Anthoxanthum odoratum H. L. Person 1932-5-10 s.n. Humboldt Arcata. 45 Comment
  UCD56274  Anthoxanthum odoratum J. W. McClellan 1924-5-26 s.n. Humboldt from Bridgeville. Comment
  UC902209  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1946-8-25 17647 Humboldt Eel River at mouth of Van Duzen River; Eel River 18 Comment
  UC902211  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1949-8-11 18468 Humboldt 2 to 6 mi s Grouse Mt.; Kinsey Ridge 1280 Comment
  HSC40265  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt 3 mi. W of Arcata Comment
  UC213319  Apocynum androsaemifolium Joseph P. Tracy 1919-9-23 5280 1/2 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  SD46627  Apocynum androsaemifolium E. K. Balls, L. W. Lenz 1956-6-12 21661 Humboldt 4.4 miles southwest from Willow Creek, along US 299, Willow Creek to Arcata. 365 Comment
  POM287860  Apocynum androsaemifolium subsp. pumilum Lyman Benson 1929-7-14 s.n. Humboldt S. Fork Eel River Weott Ranger Station Comment
  HSC3220  Apocynum cannabinum F. Morrell 1949-5-22 31 Humboldt Salyer Comment
  CAS-BOT-BC392167  Aquilegia formosa Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UCD95545  Aquilegia formosa H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad. Comment
  UCSB1939  Aquilegia formosa Phillips, Priscilla 1958-6-7 Humboldt Just off Highway 101 on road to Big Lagoon Park Comment
  HSC57019  Aquilegia formosa var. truncata Overton, Butler 1979-7-24 9631 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC40232  Arabidopsis thaliana J. P. Smith, J. O. Sawyer 1976-5-2 8626 Humboldt 3.96 mi. N of junction with Hwy. 299 on Hwy. 96 Comment
  HSC44506  Arabis glabra Brad Klipfel 1973-7-1 121 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC161543  Arabis glabra Joseph P. Tracy 1906-5-13 2456 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  RSA46725  Aralia californica Doris K. Kildale 1937-9-20 15375 Humboldt Hoopa Comment
  UC933379  Aralia californica Annie M. Alexander and Louise Kellogg 1948-9-3 5587 Humboldt Trinity R. near Hoopa Reservation; Trinity R. Comment
  HSC49044  Arbutus menziesii Patricia Shesgreen 1978-5-6 69 Humboldt Arthur W. Way Memorial Park campground. 100 yds. N of Mattole River. Comment
  UC1389155  Arctostaphylos A. E. Wieslander 1931-5-17 2567 Humboldt Orick-Orleans rd Hoopa Quadrangle, Bald Hills Comment
  CAS-BOT-BC24096  Arctostaphylos canescens subsp. canescens Joseph P. Tracy 1949-8-4 18405 Humboldt Trinity Summit, ridge top one mile west of Mud Springs. 1158 Comment
  CAS-BOT-BC25214  Arctostaphylos canescens subsp. canescens Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC98662  Arctostaphylos canescens subsp. canescens C. Witte 2007-5-17 28 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  CAS-BOT-BC23727  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13139 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23730  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15439 Humboldt Eureka 45 Comment
  CAS-BOT-BC23731  Arctostaphylos columbiana B. A. Stein 1981-11-1 567 Humboldt US Hwy 101 2 miles north of Patrick Poing 60 Comment
  CAS-BOT-BC23754  Arctostaphylos columbiana Alice Eastwood; John Thomas Howell 1934-4-11 1327 Humboldt Patrick's Point Comment
  CAS-BOT-BC23790  Arctostaphylos columbiana Gary D. Wallace 1974-12-22 1345 Humboldt Near coast N of Trinidad at the edge of the W part of Big Lagoon 6 Comment
  CAS-BOT-BC23791  Arctostaphylos columbiana C. Hart Merriam 1921-8-16 s.n. Humboldt Near summit of Berry Mountain, between Willow Creek and Arcata. Comment
  CAS-BOT-BC23793  Arctostaphylos columbiana C. Hart Merriam 1920-9-18 s.n. Humboldt Berry Mt. between Trinity River and Redwood Creek Comment
  CAS-BOT-BC23815  Arctostaphylos columbiana C. Hart Merriam 1921-7-10 s.n. Humboldt 19.5 miles south of Garberville, South fork of the Eel River. Comment
  CHSC39441  Arctostaphylos columbiana B. A. Stein 1981-11-1 568 Humboldt US Hwy 101, 2 miles north of Patrick Point. 60 Comment
  JEPS38961  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  JEPS38969  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA622698  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27681 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
  UC154033  Arctostaphylos columbiana J. P. Tracy 1909-8-22 3079 Humboldt vicinity of Eureka 0 Comment
  UC549498  Arctostaphylos columbiana J. E. Adams 1935-5-12 1048 Humboldt Patrick's Point Comment
  UC585921  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC585924  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  UCD50745  Arctostaphylos columbiana Roman Gankin 1965-8-5 543 A Humboldt Top of Chimisal Mountain west of Wailaki Recreation Area, Bureau of Land Management. Comment
  RSA24083  Arctostaphylos columbiana var. columbiana C. B. Wolf 1941-3-3 4072 Humboldt 4 mi. N. of Ettersburg on Rd. to Honeydew. 305 Comment
  UC1222639  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1950-6-15 18795 Humboldt 7 mi n Harris; Mail Ridge Comment
  JEPS38946  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  RSA632796  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27781 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA632806  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27793 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  SEINET11995491  Arctostaphylos manzanita W. Knight, Knight, I. 1988-1 6362 Humboldt Bald Hill Road about 21.5 mi from US 101 en route to Hoopa 930 Comment
  CAS-BOT-BC40029  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC46636  Arctostaphylos patula J. H. Thomas 1949-6-13 920 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (E. of town of Orleans). 1676 Comment
  HSC70475  Arctostaphylos patula Gail Newton 1980-7-15 1588 Humboldt Near Sims Mtn. 1311 Comment
  HSC7704  Arctostaphylos patula J. Pursell 1964-10-17 10171 Humboldt Hoopa in Hoopa Valley Comment
  UC1198667  Arctostaphylos patula Joseph P. Tracy 1942-9-6 17313 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC1198669  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16407 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC43998  Arctostaphylos uva-ursi Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC47206  Arctostaphylos uva-ursi W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC47212  Arctostaphylos uva-ursi John Thomas Howell 1954-4-25 29157 Humboldt Little River. Comment
  RSA122503  Arctostaphylos uva-ursi H. S. Yates 1936-6-16 5661 Humboldt 1 mile S.W. of Samoa. Comment
  UC1196866  Arctostaphylos uva-ursi J. P. Tracy 1899-3-26 299 Humboldt Rick's Prairie immediate vicinity of Eureka 0 Comment
  UC1225931  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17498 Humboldt 1 block s Harris (at L St.); Eureka 45 Comment
  RSA1903  Arctostaphylos uva-ursi var. coactilis C. B. Wolf 1930-10-28 1035 Humboldt Samoa. 15 Comment
  SEINET11987137  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3993 Humboldt Tilden Botanic Garden, Berkeley, orig. from Table Bluffs near Eureka Comment
  HSC67134  Arctostaphylos viscida J. P. Smith, J. O. Sawyer 1973-5-12 6696 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  CHSC79650  Arctotheca calendula Gordon Leppig 2000-4-9 1288 Humboldt Arcata. Union St. at 7th St. South of Phillips House. UTM zone 10, 4525N, 409E. 24 Comment
  HSC94000  Arctotheca calendula T. C. Fuller, G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 mi W of Main Street, on Centerville beach rd. Ferndale Comment
  HSC94121  Arctotheca calendula Gordon Leppig 2000-4-9 1288 Humboldt Union St. at 7th St. South of Phillips House 24 Comment
  UC1115829  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1939-4-29 16243 Humboldt at mouth of State Creek Klamath River, State Creek 121 Comment
  BLMAR64  Armeria maritima subsp. californica Jennifer Anthony-Wheeler 1994-5-18 64 Humboldt Samoa/manilla dunes, growing in clumps around annual grasses 6 Comment
  RSA246710  Armeria maritima subsp. californica Robert F. Thorne, Percy C. Everett 1965-8-5 35158 Humboldt Samoa Dunes. 3 Comment
  CHSC23908  Armeria maritima var. californica N. Dennis; D. E. Anderson 1965-6-8 108 Humboldt Samoa Peninsula along the west side of Humboldt Bay. Sand dunes and flats along the ocean. Comment
  HSC33417  Arnica cernua Thomas W. Nelson 1974-5-30 1345 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  SEINET11837502  Arnica cordifolia H. P. Chandler 1901-1 1400 Humboldt Klamath River 244 Comment
  HSC75557  Arnica discoidea J. O. Sawyer, R. J. Cole 1977-7-3 3005 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  RSA417143  Arnica discoidea H. M. Pollard 1947-8-8 s.n. Humboldt South River Road, south of Orleans Comment
  HSC8987  Arrhenatherum elatius L. M. Malloy 1965-5-20 29 Humboldt On Fickle Hill Rd., 2 mi. from Arcata Comment
  UC180348  Arrhenatherum elatius Joseph P. Tracy 1913-6-10 4084 Humboldt near Bridgeville (Northern Coast Ranges, Rogers Ranch); Northern Coast Ranges, Rogers Ranch 243 Comment
  UC1199394  Artemisia douglasiana Joseph P. Tracy 1933-8-6 12946 Humboldt French Camp Ridge 1066 Comment
  JEPS37015  Artemisia dracunculus W. L. Jepson 1921-9-11 9464 Humboldt 7 or 8 mi. s. Garberville (not far from Indian Creek (Devoy Flat) Redwood Flat, w. of S. Fork Eel); South Fork Eel River Comment
  UC249809  Artemisia dracunculus Joseph P. Tracy 1923-2-25 6148 Humboldt river bar at Carlotta; Van Duzen River 30 Comment
  CHSC55838  Artemisia pycnocephala L. P. Janeway 1987-7-31 2540 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of the Eureka City Airport. 3 Comment
  RSA34238  Artemisia pycnocephala C. B. Wolf 1927-8-29 1206 Humboldt Devils' Gate, S of Cape Mendocino. Comment
  SD41467  Artemisia pycnocephala Edith A. Purer 1932-7-27 4123 Humboldt Samoa Comment
  CAS-BOT-BC97241  Artemisia suksdorfii H. E. Parks 1940-5-1 24178 Humboldt Little River Comment
  CAS-BOT-BC97243  Artemisia suksdorfii Carl B. Wolf 1927-8-29 1220 Humboldt [Devil's] Devils Gate, south of Cape Mendocino Comment
  UC492191  Aruncus dioicus var. pubescens Joseph P. Tracy 1932-7-18 10807 Humboldt Head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC453345  Aruncus dioicus var. vulgaris Doris K. Kildale 1930-6-1 9747 Humboldt Klamath River at Weitchpec Comment
  RSA20965  Aruncus sylvester Carl B. Wolf 1937-9-13 9339 Humboldt N coast range, E Fork of Willow Creek at Forest Service Camp. 457 Comment
  HSC3266  Asarum caudatum D. E. Anderson 1962-3-8 1929 Humboldt E of HSC campus Comment
  SEINET12094120  Asarum caudatum F. H. Utech 1988-1 88 -282 Humboldt Bridgeville to Dinsmore on CA 36 800 Comment
  HSC100704  Asarum hartwegii Carl C. Marshall Apr 1887 389 Humboldt Hoopa Valley, rear of Captain's quarters. Comment
  RSA46483  Asclepias fascicularis Doris K. Kildale 1925-9-7 s.n. Humboldt Klamath at mouth of Dillon Cr. 762 Comment
  HSC102613  Aspidotis densa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1600 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC302329  Aspidotis densa Charlotte M. Wilder 1912-10-1 Humboldt ca. 6 mi above Kuntz P.O. (Upper Van Duzen River) 914 Comment
  UCR48599  Aster chilensis R. D. Goeden, Don W. Ricker 1987-9-2 870902- 10 Humboldt Loleta, along Cannibal Road 8 Comment
  CHSC70008  Astragalus agnicidus Robin Bencie 1993-6-15 1 Humboldt Miranda, 2 mi. W of Hwy. 101 on Bear Butte Road. 500 Comment
  HSC92746  Astragalus agnicidus Robin Bencie 1993-6-15 1 Humboldt Miranda, 2 mi. W of Hwy. 101 on Bear Butte Rd. 500 Comment
  CAS-BOT-BC192860  Astragalus purshii var. lectulus Thomas W. Nelson; James L. Nelson 1980-6-10 5405 Humboldt Along Swayback Ridge 4-wheel drive road ca 2.5 miles north of junction with Forest Service road 1S07 1463 Comment
  UC303178  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1925-7-18 7217 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  CAS-BOT-BC193136  Astragalus rattanii var. rattanii L. R. Abrams 1916-7-11 6056 Humboldt At mouth of Grizzly Creek on Van Duzen River Comment
  HSC14581  Astragalus rattanii var. rattanii Jana Kattenhorn 1970-10-28 145 Humboldt Mad River at the mouth of Lindsey Creek. North Bank Rd. off Hwy. 299 Comment
  SFV18601  Astragalus umbraticus T. W. Nelson, J. P. Nelson 1987-6-27 8620 Humboldt Along USFS road to Onion Lake, 8.2 miles from junction with State Route 96. 823 Comment
  SEINET12160220  Astragalus umbraticus J. P. Tracy 1940-1 16706 Humboldt Bald Mt at 'Lake Prairie 1067 Comment
  HSC57001  Asyneuma prenanthoides Overton, Butler 1979-7-24 9585 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC76227  Asyneuma prenanthoides Overton, Butler 1979-7-24 9772 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  BLMAR244  Asyneuma prenanthoides Jennifer Anthony-Wheeler 1997-7-24 244 Humboldt Lacks Creek, growing along base of rd cut Wside 1219 Comment
  RSA246930  Athyrium filix-femina subsp. cyclosorum R. F. Thorne, Percy C. Everett 1965-8-9 35292 Humboldt Big Lagoon 3 Comment
  UC922658  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  HSC38834  Avena barbata R. Sutherland 1976-8-18 6 .18876 Humboldt 195 Comment
  UC187270  Avena barbata Joseph P. Tracy 1906-4-29 2426 Humboldt near Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC1152027  Avena fatua Joseph P. Tracy 1951-5-26 19510 Humboldt Willow Creek Trinity River Valley, Trinity River 152 Comment
  UC1152029  Avena fatua A. H. Murphy 1951-4-2 8 Humboldt Hwy 101 1/4 mi s Phillipsville (side of road) Comment
  UC526701  Avena fatua Joseph P. Tracy 1933-5-20 12229 Humboldt 3 mi s point of cape (sw slopes fronting ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC60017  Azolla filiculoides M. A. Baker 1978-5-20 566 Humboldt W side of the Klamath River along Hwy. 96 Comment
  CAS-BOT-BC98770  Baccharis douglasii Frank W. Peirson 1926-7-13 7061 Humboldt Mad River, vicinity of Blue Lake 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
  CDA10384  Baccharis pilularis C. R. Tower Aug 1951 Humboldt General along Redwood Highway, Coast country. 0 Comment
  UC1004331  Baccharis pilularis W. L. Colwell 1954-11-20 20 Humboldt 3 mi e of, along Eel River South Fork Quadrangle 29B4; Eel River 91 Comment
  UC1222974  Baccharis pilularis Joseph P. Tracy 1949-10-16 18589 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC249856  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka Humboldt Bay 30 Comment
  CDA10381  Baccharis pilularis subsp. consanguinea T. C. Fuller 1961-9-27 7042 Humboldt Highway 101, 2.5 miles north of Trinidad. 0 Comment
  UC175209  Balsamorhiza deltoidea Joseph P. Tracy 1913-6-17 4175 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1524 Comment
  HSC39790  Bellis perennis Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  UC165030  Bellis perennis J. P. Tracy 1901-6-10 1127 Humboldt about Eureka 0 Comment
  UC581761  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt 10 mi upstream from mouth Bear River 152 Comment
  UCD129547  Bellis perennis Suzanne E. May 1967-4-15 34 Humboldt on State Highway 36, 1 mile west of Bridgeville. 182 Comment
  JEPS26214  Bensoniella oregona Joseph P. Tracy 1939-7-9 16327 Humboldt Snow Camp 1402 Comment
  BLMAR689  Berberis aquifolium Jennifer Wheeler 2012-5-9 689 Humboldt Lacks Creek, West side on Barnum 762 Comment
  HSC24379  Berberis aquifolium J. O. Sawyer 1970-6-24 2258 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC74672  Berberis aquifolium Gail Newton 1981-5-16 2172 Humboldt Near Bug Creek. 1228 Comment
  UC1198387  Berberis aquifolium Joseph P. Tracy 1940-8-25 16711 Humboldt High Prairie Bald Mt 1066 Comment
  UC552297  Berberis aquifolium Joseph P. Tracy 1934-7-6 13660 Humboldt at crossing of the Kneeland Rd Lawrence Creek 457 Comment
  HSC42786  Berberis nervosa Rick Cooper 1977-4-23 13 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC59564  Berberis nervosa Rick Lundquist 1979-4-22 27 Humboldt 8.4 mi. up Fickle Hill Rd. from 11th St. across from HSU observatory 610 Comment
  UC1198381  Berberis nervosa Joseph P. Tracy 1926-6-13 7597 Humboldt Liscom Hill road near Blue Lake 152 Comment
  CAS-BOT-BC75799  Berberis pinnata Doris K. Kildale 1927-3-6 3001 Humboldt McDowell Butte. 914 Comment
  CAS-BOT-BC75805  Berberis pinnata Doris K. Kildale 1929-4-25 7433 Humboldt Kneeland Prairie. 792 Comment
  CAS-BOT-BC75810  Berberis pinnata Harley P. Chandler 1901-6-1 1277 Humboldt North Coast Ranges. Hupa Indian Reservation. 1097 Comment
  OBI16932  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Crk. Below Orleans 8 mi Comment
  HSC53954  Bistorta bistortoides Griswold, Butler 1979-7-11 7004 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC984  Blechnum spicant Gene S. Van Horn 1962-1-5 5 Humboldt Arcata, Near mouth of W Creek entering H.S.C. reservoir 61 Comment
  POM87950  Blechnum spicant L. R. Abrams, R. Bacigalupi 8299 Humboldt Near northern county line Comment
  UCSB51219  Blechnum spicant Almanza, Ed 1976-7-15 Humboldt Big Lagoon Cliffs, Big Lagoon. Comment
  UC492236  Boechera acutina Joseph P. Tracy 1932-7-11 10396 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CDA5649  Borago officinalis T. C. Fuller 1958-6-17 598 -58 Humboldt Ferndale. 0 Comment
  HSC55611  Boykinia major Overton, Butler 1979-7-23 9495 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA466744  Boykinia major Anstruther Davidson 1918-07 3340 Humboldt Eel River. Comment
  BLMAR241  Boykinia occidentalis Jennifer Anthony-Wheeler 1997-6-13 241 Humboldt King range, growing at base of N bank of S fork bear creekbed 463 Comment
  CAS-BOT-BC420253  Boykinia occidentalis Roxana S. Ferris 1937-8-21 9390 Humboldt cliff above beach, Shelter Cove Comment
  HSC39223  Boykinia occidentalis D. E. Anderson, J. P. Smith 1971-7-6 - 1320 Humboldt Rock wall near bridge over Supply Creek Comment
  HSC28192  Brassica rapa Thomas W. Nelson 1971-4-12 373 Humboldt Hookton Rd. at the junction of Copenhagen Rd. Comment
  CAS-BOT-BC106291  Brickellia californica Doris K. Kildale 1925-9-26 1367 Humboldt Mouth of Mad River in coast. Comment
  UC581799  Brickellia greenei Joseph P. Tracy 1935-7-30 14361 Humboldt Salmon Summit 1767 Comment
  CDA1775  Briza maxima T. C. Fuller 1966-5-24 14710 Humboldt 2 miles north of Trinidad. 0 Comment
  CHSC31284  Briza maxima Mark Stopher 1980-5-16 68 Humboldt Along Hwy 101 near jct with Elk River, s of Eureka. Comment
  HSC45221  Briza maxima M. Alcasas 1978-5-28 110 Humboldt E end of Myrtle Ave., Eureka 8 Comment
  RSA86704  Briza maxima Joseph P. Tracy 1930-6-15 8758 Humboldt Alder Point Comment
  JEPS7739  Brodiaea elegans subsp. elegans W. L. Jepson 1932-7-24 16385 Humboldt Mail Ridge Comment
  UC1197746  Brodiaea elegans subsp. elegans J. P. Tracy 1906-7-4 2529 Humboldt near Hydesville (gravel bars on creek); Yager Creek 91 Comment
  CAS-BOT-BC149566  Bromus carinatus var. carinatus Joseph P. Tracy 1935-5-16 13806 Humboldt Eureka. 60 Comment
  UC1103281  Bromus carinatus var. carinatus Joseph P. Tracy 1941-6-15 16910 Humboldt Wilder Ridge 609 Comment
  UC552686  Bromus carinatus var. carinatus Joseph P. Tracy 1935-5-16 13806 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UCD59273  Bromus carinatus var. carinatus A. H. Murphy 1951-3-1 6 Humboldt 2 miles north of Petrolia. Comment
  UC1145182  Bromus diandrus Joseph P. Tracy 1950-6-15 18775 Humboldt 5 mi n of Harris (Mail Ridge); Mail Ridge 944 Comment
  UC1103365  Bromus hordeaceus Joseph P. Tracy 1905-6-4 2187 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC99558  Bromus laevipes K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 223 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC9332  Bromus madritensis subsp. rubens C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 43 Humboldt Trinity River, near bridge on Trinity Highway 152 Comment
  UC1145183  Bromus madritensis subsp. rubens Joseph P. Tracy 1948-6-13 18053 Humboldt Harris 762 Comment
  HSC40577  Bromus orcuttianus Thomas W. Nelson, James Nelson 1976-7-28 3047 Humboldt W of Alder Springs along 2S08 1555 Comment
  HSC99460  Bromus orcuttianus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 114 Humboldt Near North Trinity Mtn., 11. 9 mi. E of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest 1372 Comment
  CAS-BOT-BC185524  Bromus vulgaris Joseph Burtt Davy; Walter C. Blasdale 1899-6-10 5406 Humboldt North Coast Ranges. Hubbards Station. Comment
  UC1103268  Bromus vulgaris Joseph P. Tracy 1912-7-25 3817 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC180480  Bromus vulgaris Joseph P. Tracy 1914-5-14 4444 Humboldt Northern Coast Ranges, Fort Seward Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  RSA249329  Cacaliopsis nardosmia D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5569 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  SEINET11993511  Cakile maritima F. H. Utech 1986-1 86 -403 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  UCD57250  Calamagrostis koelerioides A. H. Murphy 1948-9-3 s.n. Humboldt southeast of Berry's summit, junction Horse Mtn. road and Horse Mtn. Mine roads. Comment
  CAS-BOT-BC185185  Calamagrostis nutkaensis Catherine Best 1990-6-26 1398 Humboldt Growing near Nature Conservancy property on the road to the Table Bluff Light House northwest of Loleta. Comment
  UCSB24062  Calocedrus decurrens McMinn, H. 1922-07 Humboldt 1 mile east of Dinsmore Comment
  UC1197698  Calochortus amabilis Mrs. Eri Eaton 1911-5-27 Humboldt near South Fork of Eel River; Phillipsville 304 Comment
  HSC15377  Calochortus tolmiei D. E. Anderson 1965-5-15 3559 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek, above Trinity River Comment
  RSA183584  Calochortus tolmiei D. E. Anderson 1965-5-15 3716 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  CAS-BOT-BC494366  Calochortus tolmiei H. C. Cantelow 1941-4-19 36 Humboldt 2 1/2 mi. n. e. of Cape Town. Open hillside above ocean on rd. to Ferndale from Patrolia. Comment
  UC1971693  Calycadenia fremontii 1978-8-21 2158 Humboldt 2.1 mi W of Hwy 299 on Friday Ridge Road, ca. 3.5 mi WSW of Salyer, common at Burnt Woods, yellow form at Big Bar (W along cliffs), (=GDC 785) 458 Comment
  RSA33968  Calycadenia truncata subsp. scabrella Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat. Comment
  CAS-BOT-BC275365  Calycadenia truncata var. truncata Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat 152 Comment
  HSC39966  Calypso bulbosa Linda M. Barker 1976-3-22 1347 Humboldt 3 mi. W of Arcata Comment
  HSC98045  Calypso bulbosa Cara Witte 2007-5-31 165 Humboldt Buck Flat. 1547 Comment
  RSA725961  Calypso bulbosa var. occidentalis Richard G. Swinney 1968-4-5 241 Humboldt North Coast: Lanpheres Preserve, west of Arcata. 3 Comment
  HSC55179  Calyptridium monospermum Gilbert Muth 1979-8-1 12189 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC74028  Calystegia occidentalis subsp. occidentalis Gail Newton 1980-7-11 1315 Humboldt Near Red Mtn. 1341 Comment
  UC582720  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1937-7-24 15531 Humboldt head of Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  HSC79454  Calystegia purpurata subsp. purpurata Kenneth Clark 1980-4-18 604 Humboldt Above Dead Man's Gulch near parking access 137 Comment
  BLMAR68  Calystegia soldanella Jennifer Anthony-Wheeler 1994-5-18 68 Humboldt Samoa/manilla dunes, growing in dune mat with I the Samoa Rec. area wetland 6 Comment
  UC13767  Camassia quamash subsp. quamash W. C. Blasdale 1896-6-4 Humboldt Eureka Comment
  HSC45380  Camissonia cheiranthifolia R. York, Linda York 1978-4-1 99 Humboldt End of lighthouse Rd., 2 mi. SE of Petrolia. Comment
  RSA43830  Campanula prenanthoides H. M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  UC583020  Campanula prenanthoides P. A. Munz 1936-8-10 14338 Humboldt 15 mi e Bridgeville; Little Van Duzen River Comment
  HSC35938  Campanula scouleri Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2031 Humboldt French Camp, Bald Hills. Comment
  HSC58014  Campanula scouleri G. L. Clifton 1979-7-31 11815 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SEINET10463516  Campanula scouleri Overton 1979-7-23 OVERTON 9497 Humboldt NR TITLOW HILL, WILLOW CR. QUAD., NR WILLOW CR. EVERGREEN CONIFER FOREST, SEEPAGE 1280 Comment
  HSC98724  Campanula scouleri Cara Witte 2008-7-16 919 Humboldt Forest Service Road 4N38. At intersection to Board Camp Lookout. 1414 Comment
  JEPS11738  Campanula scouleri W. L. Jepson 1902-7-30 2128 Humboldt Three Creeks to Redwood Creek 914 Comment
  SEINET10463479  Campanula scouleri Manning MANNING [ 305 ] Humboldt Near Hupa (Bald Hills). 457 Comment
  SEINET10463685  Campanula scouleri Chesnut 1888-7-19 CHESNUT s.n. Humboldt PILOT RIDGE Comment
  SEINET10840056  Campanula scouleri Tracy 1926-6-27 TRACY 7691 Humboldt Horse Mountain, shaded banks in Fir woods. 1219 Comment
  JEPS53314  Cardamine breweri Joseph P. Tracy 1918-4-28 4891 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC37435  Cardamine californica Lincoln Constance; Reed Clark Rollins 1942-5-20 2998 Humboldt Eel River, 1 mile north of Pepperwood. 45 Comment
  HSC6694  Cardamine californica J. L. Baker 1965-4-12 43 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  HSC6698  Cardamine californica Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  UC1199192  Cardamine californica Joseph P. Tracy 1949-6-6 18305 Humboldt ne Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain, ne Hawkins Bar 1280 Comment
  UC162639  Cardamine californica Harley P. Chandler May 1901 1091 Humboldt Idlewild near Dyerville (Humboldt Bay); North Coast Ranges, , Idlewild 152 Comment
  UC1199193  Cardamine nuttallii var. covilleana Joseph P. Tracy 1949-6-25 18352 Humboldt near Box Camp (Trinity Summit); , near Box Camp 1524 Comment
  HSC39987  Cardamine oligosperma Linda M. Barker 1976-3-22 1338 Humboldt 3 mi. W of Arcata Comment
  HSC6645  Cardamine oligosperma Lincoln Constance 1934-5-31 745 Humboldt S Fork of the Eel River, Bull Creek Flat, along Bull Creek, W boundary of park to Grasshopper Peak, N side of creek Comment
  RSA442190  Cardamine oligosperma M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale. Comment
  HSC90782  Cardionema ramosissimum Peter Sorensen 1976-6-14 Humboldt North Spit Comment
  UCR121762  Cardionema ramosissimum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6997 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  POM148066  Cardionema ramosissimum J. B. Feudge 1923-7-21 129 Humboldt Ferndale. Comment
  CAS-BOT-BC18268  Carex David D. Keck 1946-7-4 5604 Humboldt South Fork of Eel River, 8 miles north of Garberville. Comment
  UC562253  Carex aquatilis var. dives Joseph P. Tracy 1935-6-8 13948 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 6 Comment
  UCD149856  Carex aquatilis var. dives H. McC.; William Anderson 1964-8-5 s.n. Humboldt Dry Lagoon. Comment
  POM273208  Carex barbarae Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  UC1103620  Carex barbarae Joseph P. Tracy 1935-5-19 13808 Humboldt 2 mi N of Myers (South Fork of Eel River) 91 Comment
  UC1103599  Carex concinnoides Joseph P. Tracy 1927-6-19 8202 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 15 Comment
  CAS-BOT-BC34977  Carex densa Joseph Prince Tracy 1935-5-25 13855 Humboldt Fort Seward. 106 Comment
  HSC48137  Carex densa D. H. Norris 1971-7-17 19600 Humboldt Along Redwood House Rd., about 3 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  UC750613  Carex deweyana subsp. leptopoda Henry M. Pollard 1945-9-1 Humboldt Camp Creek Klamath River Canyon Comment
  UC1103104  Carex deweyana subsp. leptopoda Joseph P. Tracy 1920-5-18 5325 Humboldt 5 mi above Dyerville (South Fork); Eel River 152 Comment
  HSC74421  Carex echinata subsp. echinata Gail Newton 1980-8-10 2044 Humboldt Near Blake Mtn. 1707 Comment
  CAS-BOT-BC19968  Carex exsiccata Milo S. Baker 1927-8-21 24706 Humboldt Near Bald Mountain. 914 Comment
  SEINET7483969 Image available Carex exsiccata Joseph P. Tracy 1934-1 13502 Humboldt Along coast in front of South End of Stone Lagoon. 3 Comment
  HSC40977  Carex fracta J. O. Sawyer 1970-6-24 2217 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1755279  Carex geyeri Dean W. Taylor 2007-7-11 20162 Humboldt Horse Mountain; Six Rivers National Forest, Titlow Hill Road at the junction with Forest Road 6N18 1432 Comment
  CAS-BOT-BC20876  Carex globosa Joseph Prince Tracy 1927-7-4 8242 Humboldt North Coast Ranges. Blue Slide, on Van Duzen River. 91 Comment
  UC1103061  Carex globosa Joseph P. Tracy 1939-4-25 16224 Humboldt mouth of creek Bull Creek 60 Comment
  UC1103591  Carex gynodynama Joseph P. Tracy 1938-6-11 15893 Humboldt Vicinity of Carlotta. Comment
  CAS-BOT-BC22319  Carex harfordii Joseph Prince Tracy 1935-6-8 13936 Humboldt Eureka. 60 Comment
  CAS-BOT-BC28163  Carex hoodii Joseph Prince Tracy 1932-7-11 10410 Humboldt trinity Summit, Open places at Corral Prairie. Comment
  CAS-BOT-BC7565  Carex integra Joseph Prince Tracy 1935-7-23 14139 Humboldt Trinity Summit. Open places at Corral Prairie. 1584 Comment
  UC194814  Carex laeviculmis Joseph P. Tracy 1914-7-4 4524 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC562427  Carex laeviculmis Joseph P. Tracy 1933-7-25 12856 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  JEPS79856  Carex lenticularis var. impressa Joseph P. Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC31470  Carex leptopoda Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon. Comment
  HSC58794  Carex luzulina Overton, Butler 1979-7-31 11460 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC194811  Carex lyngbyei Joseph P. Tracy 1915-6-6 4646 Humboldt near mouth Elk River (region about Humboldt Bay); Northern Coast Region 0 Comment
  HSC98941  Carex mendocinensis Cara Witte 2008-6-4 682 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1276 Comment
  SEINET4292167 Image available Carex microptera Unknown 2003-1 7920 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5km northeast of the top of Grouse Mountain. Comment
  HSC45437  Carex microptera Thomas W. Nelson, Jane P. Nelson 1978-7-2 4401 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  HSC63874  Carex microptera M. A. Baker 1979-6-27 921 Humboldt Edge of Hoopa Indian Reservation Comment
  HSC70323  Carex multicaulis M. A. Baker 1980-6-7 1875 Humboldt Near Ammon Creek 732 Comment
  UC1103570  Carex multicaulis Joseph P. Tracy 1919-5-31 5164 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges 152 Comment
  SEINET4292202 Image available Carex multicostata Unknown 2003-1 7945 Humboldt High North Coast Ranges. At upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. Grouse Mountain Quad. Comment
  CAS-BOT-BC119543  Carex nudata L. P. Janeway 1983-7-23 436 Humboldt Willow Creek quad. Along the W edge of Trinity River near the Willow Creek Airstrip. 137 Comment
  CHSC10107  Carex obnupta J. W. Johnson 1961-8-17 1055 Humboldt Hollow 10, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC7061  Carex obnupta J. W. Johnson 1962-4-28 1306 Humboldt Arcata, Hollow 10, W.M. Lamphere Farm, Samoa Peninsula Comment
  HSC7066  Carex obnupta Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  CAS-BOT-BC119230  Carex pachystachya Joseph Prince Tracy 1927-5-29 8077 Humboldt Big Lagoon 6 Comment
  HSC73703  Carex pachystachya M. A. Baker 1980-7-22 3122 Humboldt Near Grogan Hole. 1676 Comment
  POM247171  Carex pachystachya Joseph P. Tracy 1935-6-8 13936 Humboldt Eureka. 0 Comment
  UC1103088  Carex pachystachya Joseph P. Tracy 1926-5-15 7487 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC119221  Carex pachystachya Harold Ernest Parks; Joseph Prince Tracy 1935-6-16 11271 Humboldt Buck Mt. Lower NW slope. 792 Comment
  HSC98935  Carex pachystachya Cara Witte 2007-7-8 444 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  HSC90761  Carex pansa Gail Newton 1982-6-5 3586 Humboldt Elk River Wildlife Area, Eureka. Comment
  RSA22203  Carex pansa D. D. Keck 1938-8-5 4766 Humboldt Clam Beach. Comment
  CAS-BOT-BC119165  Carex pansa David Daniels Keck 1938-8-5 4766 Humboldt Calm Beach in dunes. Comment
  HSC32420  Carex pansa Rudolf W. Becking 1974-6-15 Humboldt Between Samoa and Fairhaven, W of connecting road Comment
  UC194809  Carex praticola Joseph P. Tracy 1914-5-3 4421 Humboldt Eureka Northern Coast Region 0 Comment
  HSC58704  Carex rostrata Terry Griswold, Butler 1979-7-11 7097 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC45953  Carex straminiformis J. P. Smith, Steve Selva 1970-6-30 4126 Humboldt Comment
  UC1152076  Carex subbracteata Joseph P. Tracy 1950-6-25 18892 Humboldt Burr Valley, NW slope of Buck Mountain 1066 Comment
  CAS-BOT-BC116675  Carex subfusca Henry M. Pollard 1948-8-4 21 -2 Humboldt Orleans Mt. 1371 Comment
  HSC102155  Carex subfusca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1063 Humboldt Patterson Meadows 1555 Comment
  CHSC104060  Carex tumulicola Peter F. Zika 2009-6-15 24495 Humboldt Outer North Coast Range. Above Route 299, 2.3 road miles W of junction with Chezen Road between Lord-Ellis and Berry summits. 680 Comment
  UC585639  Carex tumulicola Joseph P. Tracy 1937-5-17 15295 Humboldt near Willow Creek; Trinity River Valley 152 Comment
  UC562326  Carex vesicaria var. major Joseph P. Tracy 1927-7-17 8277 Humboldt lower w foothills Chaparral Mountain (Three Cabins); North Coast Ranges 457 Comment
  UC709397  Carex vesicaria var. major Joseph P. Tracy 1938-9-25 16170 Humboldt Lake Prairie Bald Mountain 1066 Comment
  CHSC43009  Carex viridula subsp. viridula L. P. Janeway 1987-8-30 2534 Humboldt At Dry Lagoon. Middle of lagoon. 3 Comment
  CDA6948  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke s Prairie, on ridge 1 mile north above Bull Creek, ca. 2 miles west of Dyerville. 0 Comment
  SEINET12027436  Castanopsis chrysophylla J. P. Tracy 1950-1 19239 Humboldt Grouse Mtn 1524 Comment
  HSC99012  Castilleja affinis subsp. affinis C. Witte 2007-5-10 19 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1368 Comment
  OBI9388  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  UC1222799  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1950-6-17 18839 Humboldt Eureka slough at the railroad bridge Eureka Comment
  JEPS8625  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1935-7-24 14203 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  RSA167242  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1951-6-26 19587 Humboldt North side of Board Camp Mountain, at extreme head of Redwood Creek. 1541 Comment
  RSA167243  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1950-7-2 18974 Humboldt Near top of ridge, 1 mile south of Grizzly Camp. Comment
  CAS-BOT-BC255519  Castilleja applegatei var. pinetorum Duart V. Brown 1947-4-2 30 Humboldt Hillside just above river, near Sweed Creek, Trinity River 426 Comment
  UC902261  Castilleja attenuata Joseph P. Tracy 1947-5-24 17694 Humboldt Devil's Canyon; Big Lagoon 152 Comment
  HSC56208  Castilleja miniata G. L. Clifton, Griswold 1979-8-2 12210 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC244884  Castilleja miniata Thomas W. Nelson; Jane P. Nelson 1979-7-11 5032 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit Comment
  HSC49985  Castilleja pruinosa M. A. Baker 1979-6-7 785 Humboldt N bank of road to Snow Mtn. 610 Comment
  CAS-BOT-BC83837  Ceanothus arcuatus Dylan O. Burge 2009-5-12 1155 b Humboldt Horse Mountain, at intersection of FR 6N36 and Titlow Road 360 Comment
  HSC98535  Ceanothus arcuatus C. Witte 2007-5-17 30 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  UCR141621  Ceanothus arcuatus J. M. Tucker 1948-9-3 1852 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest) on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine 1463 Comment
  HSC73442  Ceanothus cuneatus Gail Newton 1980-7-11 1311 Humboldt Near Red Mtn. 1341 Comment
  CAS-BOT-BC50043  Ceanothus incanus M. S. Jussel 1931-5-2 114 Humboldt Garberville Comment
  CAS-BOT-BC50052  Ceanothus incanus H. E. McMinn 1922-8-3 382 Humboldt South Fork Eel River Comment
  HSC96951  Ceanothus integerrimus Whitney Meier, Elizabeth Kimbrough 2007-6-11 4 Humboldt Cold Springs Camp, 14.1 mi. S of Hwy. 299 on FS Rd. NF1 Comment
  UC1198004  Ceanothus integerrimus Joseph P. Tracy 1921-6-19 5839 Humboldt ridge to n Willow Creek (between Willow Creek and campbell Creek, near Langdon's Gopher Camp.); Brannon Mountain, Northern Coast Ranges 762 Comment
  HSC101656  Ceanothus oliganthus var. sorediatus J. P. Smith, J. O. Sawyer 2011-4-23 13116 Humboldt Along Salmon Creek Rd., 3.4 miles from its junction with U.S. 101. 203 Comment
  RSA136480  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-5-1 4902 Humboldt Kneeland Prairie. 762 Comment
  HSC43182  Ceanothus parryi R. Sutherland 1975-7-5 9 .5775 Humboldt 244 Comment
  SBBG68534  Ceanothus parryi L. Rowntree -Jul-1931 Humboldt Ettersburg Comment
  RSA170272  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17526 Humboldt Willow Creek Canyon, along Trinity Hwy Comment
  BLMAR284  Ceanothus thyrsiflorus Jennifer Anthony-Wheeler 1999-5-28 284 Humboldt King range, growing on strawberry Rock grazing allotment 304 Comment
  CAS-BOT-BC52996  Ceanothus thyrsiflorus C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC45658  Ceanothus thyrsiflorus Diane L. Reed 1978-4-29 43 Humboldt Trinidad Head Comment
  RSA172184  Ceanothus thyrsiflorus Robert F. Thorne 1957-9-3 19022 Humboldt Patrick's Point State Park. Comment
  UC1193283  Ceanothus thyrsiflorus R. H. Neuns 1950-10-23 143 Humboldt on Shelter Cove Road 3 mi e Shelter Cove; Quad. 28D4, e of Shelter Cove 487 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
  HSC97570  Ceanothus velutinus Cara Witte 2007-6-5 215 Humboldt Along Forest Service Road 4N32. Near Grouse Mountain 1486 Comment
  UC1193275  Ceanothus velutinus R. H. Neuns 1950-7-13 128 Humboldt 3 miles south of Alder Point 548 Comment
  UCD112775  Ceanothus velutinus B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  UC1222950  Centaurea melitensis Joseph P. Tracy 1943-11-28 17455 Humboldt bar at mouth of Van Duzen Eel River; , Van Duzen Comment
  UC562308  Centaurium muehlenbergii Joseph P. Tracy 1934-7-9 13347 Humboldt Dobbyn Creek 152 Comment
  JEPS11948  Centaurium muehlenbergii Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-10 4755 Humboldt 1 mi s Garberville (along U.S. Highway 101) 213 Comment
  JEPS46930  Centaurium muehlenbergii Lincoln Constance 1934-6-4 820 Humboldt Bull Creek road to Dyerville (Look Prairie); South Fork Eel River, Bull Creek Region, Look Prairie Comment
  POM225120  Centaurium muehlenbergii P. A. Munz 1936-8-9 14329 Humboldt Half a mile north of Humboldt-Mendocino county line, in Redwood Highway. Comment
  RSA245260  Centaurium muehlenbergii B. D. Rogers, William J. Ferlatte 1966-8-15 3130 Humboldt North Bank Road, two miles north of Arcata. Comment
  HSC74322  Cephalanthera austiniae Gail Newton 1980-7-20 1627 Humboldt Near Bell Swamps 1426 Comment
  UC1196466  Cephalanthera austiniae Joseph P. Tracy 1911-7-12 3523 Humboldt mt. slopes along rd. near Three Creeks; Northern Coast Ranges 762 Comment
  CAS-BOT-BC384905  Cerastium arvense Kenneth Clark 1980-4-18 599 Humboldt Shelter Cove. Above Dead Man's Gulch 175 Comment
  UC1537306  Cerastium arvense Gordon H. True Jr. 1936-5-11 457 Humboldt 12 mi. w. Miranda (gully on w. slope of Elk Ridge); Elk Ridge 457 Comment
  UC8236  Cerastium arvense J. Burtt Davy 1899-6-9 5366 Humboldt Chamisse Ridge n. of Harris; Chamisse Ridge Comment
  UC161038  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1907-6-20 2569 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC4109  Cerastium fontanum subsp. vulgare D. E. Anderson 1962-5-1 2201 Humboldt 1 mi. W of Hoopa Comment
  HSC4100  Cerastium glomeratum D. B. Bader 1963-2-17 41 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  JEPS51355  Cerastium viride Lincoln Constance 1934-6-3 805 Humboldt on Redwood Hwy. 1 mi. n. Dyerville (rd. from High Rock to Horse Prairie); S. Fork Eel R., Bull Creek Region Comment
  CAS-BOT-BC135532  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1927-4-10 7897 Humboldt Trinity River Valley, near the South Fork 182 Comment
  RSA47096  Chamaecyparis lawsoniana Doris K. Kildale 1926-8-15 2502 Humboldt Willow Creek Canyon 770 Comment
  SBBG11071  Chamaecyparis lawsoniana D. E. Breedlove 1961-7-4 646 Humboldt 7 mi W of Willow Crk on US Hwy 299 521 Comment
  UC1198973  Chamaesyce serpyllifolia Joseph P. Tracy 1920-8-15 5382 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC275331  Chamaesyce serpyllifolia Joseph P. Tracy 1923-9-16 6556 Humboldt Trinity River Valley, near the South Fork Northern Coast Ranges 182 Comment
  CAS-BOT-BC166044  Chamerion angustifolium subsp. circumvagum W. R. Dudley 1899-6-1 s.n. Humboldt Arcata Comment
  CAS-BOT-BC68266  Cheilanthes gracillima Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC55201  Cheilanthes gracillima Overton 1979-8-1 12308 Humboldt Near Mill Cr., close to the town of Hoopa 1402 Comment
  UC197914  Cheilanthes gracillima Joseph P. Tracy 1908-7-3 2765 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1222586  Chenopodium ambrosioides Joseph P. Tracy 1950-9-22 19377 Humboldt near Slate Creek (8 mi below Orleans); Klamath River 121 Comment
  UC582918  Chenopodium botrys P. A. Munz 1936-8-9 14334 Humboldt Williams Redwood Grove South Fork of Eel River Comment
  UC205454  Chenopodium pumilio Joseph P. Tracy 1919-9-13 5200 Humboldt Willow Creek Northern Coast Ranges (near mouth, tributary of Eel River) 152 Comment
  CHSC69501  Chenopodium rubrum var. rubrum Vernon Oswald; Lowell Ahart 1997-9-4 8846 Humboldt North Coast Region, Coastal Strand. Big Lagoon County Park at the southwest edge of Big Lagoon. 3 Comment
  CAS-BOT-BC451493  Chimaphila umbellata Milo S. Baker 1947-8-10 11899 Humboldt 15 mi. NE of Hoopa near end of forest road 1371 Comment
  CAS-BOT-BC451499  Chimaphila umbellata Carl B. Wolf 1937-8-12 9209 Humboldt North Coast Range, South Fork Mt., 0.6 mi S of Blake Lookout 1676 Comment
  HSC45410  Chimaphila umbellata Thomas W. Nelson, Jane Nelson 1977-7-1 3567 Humboldt 1494 Comment
  HSC15439  Chlorogalum pomeridianum var. pomeridianum Paul Shields Jul 1955 Humboldt 6 mi. W of Myers Flat Comment
  HSC98053  Chlorogalum pomeridianum var. pomeridianum Cara Witte 2007-7-17 541 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1302 Comment
  POM92409  Chrysanthemum leucanthemum L. R. Abrams 1922-6-25 8236 Humboldt 2 miles south of Fortuna Comment
  UC1193062  Chrysolepis chrysophylla var. chrysophylla R. H. Neuns 1950-7-13 132 Humboldt 3 mi s Alder Point 548 Comment
  CAS-BOT-BC279831  Cichorium intybus Doris K. Kildale 1926-7-22 2428 Humboldt Metropolitan Comment
  UC154047  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  CAS-BOT-BC284404  Cirsium arvense L. R. Abrams 1927-8-31 12059 Humboldt Arcata Comment
  SEINET9341561  Cirsium brevifolium Unknown 1948-9-3 1850 Humboldt Humboldt Comment
  CAS-BOT-BC284437  Cirsium brevistylum Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  CDA1329  Cirsium occidentale var. candidissimum T. R. Haig 1960-6-21 s.n. Humboldt 7 mi. S of Garberville. Comment
  CAS-BOT-BC285533  Cirsium occidentale var. candidissimum Carl B. Wolf 1934-6-30 5839 Humboldt 7 mi. from Shelter Cove on road to Briceland 152 Comment
  UC166542  Cirsium quercetorum J. P. Tracy 1901-6-16 1138 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC288718  Cirsium remotifolium Doris K Niles 1948-7-26 4 Humboldt Eel River bottom, A. D. Niles Field Comment
  CDA1548  Cirsium remotifolium var. rivulare E. C. Whitney 1968-7-25 s.n. Humboldt Larabee Valley State Hwy 36, 0.5 mi. E of bridge over the South Fork of the Van Duzen River. 0 Comment
  UC1119200  Cirsium vulgare H. L. Person 1932-7-21 Humboldt Blue Lake Eureka Quadrangle, Blue Lake Comment
  CAS-BOT-BC285771  Cirsium vulgare John Thomas Howell 1931-6-17 6723 Humboldt Redwood Highway 1 1/2 miles n. of Orick Comment
  UC1222856  Clarkia amoena Joseph P. Tracy 1950-6-18 18846 Humboldt hills between ocean and Petrolia; Domingo Hill 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-BC160961  Clarkia amoena subsp. amoena Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  POM92414  Clarkia amoena subsp. amoena L. R. Abrams 1922-6-25 8229 Humboldt 6 miles N of Garberville, along Eel River. Comment
  HSC8649  Clarkia amoena subsp. huntiana Thomas W. Nelson, James Nelson 1975-9-3 2191 Humboldt Along N side of Ashfield Butte Comment
  POM225268  Clarkia amoena subsp. huntiana P. A. Munz 1936-8-10 14339 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. Comment
  UC183698  Clarkia davyi Joseph P. Tracy 1912-7-21 3772 Humboldt Alton Northern Coast Region 30 Comment
  UC562524  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1936-6-10 14935 Humboldt w of mouth South Fork Trinity River 609 Comment
  UC183693  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1913-6-11 4091 Humboldt lower foothills on nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  CAS-BOT-BC172504  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1926-6-8 2128 Humboldt Bug Creek 792 Comment
  UC902171  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1947-6-8 17712 Humboldt 5 mi e of town Carlotta (open flat by old Strong's District School House) 60 Comment
  CAS-BOT-BC172514  Clarkia purpurea subsp. quadrivulnera Paul F. Covel 1937-7-11 888 Humboldt Near Garberville Comment
  HSC16257  Clarkia purpurea subsp. quadrivulnera R. Spellenberg 1965-6-13 1109 Humboldt E side of Trinity River, about 3/4 mi. S of Hwy. through Hoopa Indian Reservation Comment
  HSC16262  Clarkia purpurea subsp. viminea Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  UC144068  Clarkia rhomboidea Joseph P. Tracy July, 1908 2763 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 762 Comment
  SEINET196688  Claytonia cordifolia H. E. Parks, JP Tracy 1949-6-25 11680 Humboldt Trinity Summit at Box Camp 1460 Comment
  SEINET200315  Claytonia exigua subsp. exigua J. P. Tracy 1926-4-3 7396 Humboldt Kneeland Prairie local Comment
  HSC44425  Claytonia lanceolata Brad Klipfel 1975-5-30 648 Humboldt Horse Mtn. Comment
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Sep 23 2019
  HSC48838  Claytonia lanceolata Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 30 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC45629  Claytonia perfoliata Diane L. Reed 1978-4-22 29 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  SEINET196691 Image available Claytonia perfoliata subsp. intermontana Joseph P. Tracy 1949-6-6 18306 Humboldt Trinity Summit Range; Happy Camp Mt., NE of Hawkins Bar. 1280 Comment
  SEINET9136502  Claytonia perfoliata subsp. mexicana C. E. Fellows 1972-4-29 485 Humboldt Ca 20 meters below the W side of the road to Kneeland, 8 miles ESE of Eureka, 3.1 miles above town of Freshwater. 610 Comment
  UC183593  Claytonia rubra subsp. depressa Joseph P. Tracy 1913-3-23 4027 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  SBBG69718  Claytonia sibirica L. Rowntree 1931-7-21 Humboldt near Ferndale Comment
  RSA117688  Claytonia sibirica S. S. Tillett 1956-7-5 603 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  UC672991  Claytonia sibirica Joseph P. Tracy 1933-5-20 12273 Humboldt near Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  HSC99239  Claytonia washingtoniana C. E. Fellows 1971-6-7 454 Humboldt 0.35 mi. E of Arlington Rd. on Alder Grove Rd. Comment
  UC249703  Clematis ligusticifolia Joseph P. Tracy 1921-9-4 5956 Humboldt near Willow Creek (Trinity R. Valley); Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC499339  Clintonia andrewsiana Doris K. Kildale 1931-5-10 10682 Humboldt Snow Camp Comment
  CAS-BOT-BC499340  Clintonia andrewsiana Doris K. Kildale 1926-3-26 1638 Humboldt Old Kneeland Road 60 Comment
  HSC99448  Clintonia uniflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 98 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA12552  Clintonia uniflora Carl B. Wolf 1934-7-2 5887 Humboldt Snow camp. (Mts. east of Korbel) 1372 Comment
  UC1196764  Collinsia grandiflora Harley P. Chandler May 1901 1251 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  HSC32323  Collinsia parviflora D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5664 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC96206  Collinsia parviflora J. McIntire, S. Lyon 2005-6-8 4 Humboldt Cold Springs Camp, 7.4 mi. S of Hwy. 299 on F.S. Rd. NF1 1402 Comment
  UC1196841  Collinsia rattanii Joseph P. Tracy 1929-7-4 8628 Humboldt French Camp Ridge 1066 Comment
  JEPS26359  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1913-5-4 4053 Humboldt Kneeland Prairie; North Coast Ranges; Kneeland Prairie 762 Comment
  UC582465  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1932-5-10 9932 Humboldt Bear River Ridge; Northern Coast Ranges, Bear River Ridge 609 Comment
  JEPS4616  Collinsia torreyi var. wrightii W. L. Jepson Jul 16 1902-Jul 23 1902 2042 Humboldt Trinity Summit 2133 Comment
  JEPS7053  Collinsia torreyi var. wrightii Joseph P. Tracy 1932-7-12 10467 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  HSC56331  Collomia grandiflora Overton, Butler 1979-8-2 12698 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CHSC40066  Collomia heterophylla S. K. Harris 1942-6-12 1386 Humboldt Roadside banks, Fickle Hill Road to Boynton Prairie, SN 2 E. 600 Comment
  HSC100589  Collomia heterophylla Carl C. Marshall Jun 1887 498 Humboldt Harris. Comment
  HSC32261  Collomia heterophylla J. O. Sawyer 1970-6-24 2250 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  RSA183510  Collomia heterophylla D. E. Anderson 1965-5-8 3639 Humboldt About 2 miles north of Willow Creek on road running along east side of Trinity River. Comment
  POM270917  Collomia heterophylla S. K. Harris 1942-6-12 1386 Humboldt Fickle Hill Road to Boynton Prairie, SN 2 E. 600 Comment
  HSC28189  Convolvulus arvensis Richard Curtis 1973-9-28 25 Humboldt Along R. R. track near mouth of Nanning Cr. Comment
  HSC27560  Corallorhiza maculata J. D. Ackerman, A. Montalvo 1973-6-30 88 Humboldt Big Lagoon County Park, 8 mi. N of Trinidad Comment
  JEPS64320  Corallorhiza mertensiana W. L. Jepson 1902-6-28 1948 Humboldt Berry's Ranch Redwood Creek (Hupa road) Comment
  POM319325  Cordylanthus maritimus subsp. palustris Patricia Wilder 1968-8-21 4413 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  UC604620  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1938-7-15 16064 Humboldt borders salt marsh at Fields Landing; Northern Coast Region, around Humboldt Bay 3 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
  JEPS41846  Corethrogyne filaginifolia W. L. Jepson 1936-8-17 17931 Humboldt Arcata Comment
  UC1223036  Corethrogyne filaginifolia Joseph P. Tracy 1950-6-18 18764 A Humboldt 1 mi w of town Petrolia Comment
  JEPS79878  Cornus canadensis Joseph P. Tracy 1939-7-9 16321 Humboldt Bald Mountain at Lake Prairie Bald Mountain 1066 Comment
  CAS-BOT-BC209752  Cornus glabrata Doris K. Kildale 1926-8-15 2535 Humboldt Hoopa Mountain 579 Comment
  UC183574  Cornus glabrata Joseph P. Tracy 1913-6-21 4251 Humboldt Van Duzen R. just below Low Gap; Northern Coast Ranges, Van Duzen R. 762 Comment
  HSC99585  Cornus nuttallii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 250 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 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
  RSA85517  Cornus nuttallii G. R. Campbell 1954-3-24 19022 Humboldt 17.4 mi. east of jct. of hwys 101 and 299 above Blue Lake. Comment
  HSC38434  Cornus sericea subsp. occidentalis J. P. Smith 1976-10-30 8999 Humboldt Mad River, E of Essex Ln. exit. Comment
  HSC57091  Cornus sericea subsp. sericea Overton, Butler 1979-7-24 9805 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC1167522  Cornus sessilis J. A. Delapp 1959-9-2 51 Humboldt 6 3/4 mi. n.-n.e. Schoolhouse Peak (near Big Prairie, V-Plot #81, <3N-95>); Quad. 11C-1 685 Comment
  HSC38648  Coronopus didymus J. P. Smith 1970-11-18 4629 Humboldt HSU campus Comment
  HSC93465  Cortaderia selloana Gordon Leppig, Kai Neander 1998-10-12 1104 Humboldt McKinleyville, empty lot on School Rd., behind Mill Creek Shopping Center 30 Comment
  UC146217  Corylus californica Joseph P. Tracy 1906-6-24 2497 Humboldt Humboldt Hill, S side North Coast Region, region about Humboldt Bay 0 Comment
  CHSC102915  Cotoneaster lacteus Arthur Lee Jacobson 2007-8-13 Humboldt North Coast. North of Mill Creek and W of Stagecoach Road, southern part of Trinidad State Beach. 50 Comment
  CAS-BOT-BC143494  Cotoneaster pannosus Peter F. Zika 2007-7-20 23324 Humboldt Lynda Lane near high school, S end of Big Lagoon, (NCo, North Coast) 20 Comment
  HSC5427  Cotula coronopifolia R. T. Forester 1963-4-29 42 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  POM264509  Cotula coronopifolia H. E. Parks 1941-09 24211 Humboldt Little River State Park Comment
  HSC79466  Crassula connata Kenneth Clark 1981-4-5 1226 Humboldt 1/4 E of Dead Man's Gulch 122 Comment
  CAS-BOT-BC291482  Crepis capillaris M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  JEPS89545  Crepis capillaris Dean W. Taylor 1991-9-15 12288 Humboldt along Hwy. 101 near mouth of Tom Creek (Big Lagoon); N. Coast Ranges, Big Lagoon 3 Comment
  CAS-BOT-BC291491  Crepis capillaris Alice Eastwood; John Thomas Howell 1937-6-23 4836 Humboldt 7 miles from Yager on road to Kneeland Comment
  HSC26921  Crepis capillaris Brad Klipfel 1973-7-24 221 Humboldt Arcata Comment
  POM92411  Crepis capillaris L. R. Abrams 1922-6-25 8234 Humboldt 2 miles south of Fortuna Comment
  UC165199  Crepis monticola Joseph P. Tracy 1908-6 2915 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  CAS-BOT-BC290908  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto [Horse Linto] Creek 152 Comment
  HSC100428  Crocidium multicaule Carl C. Marshall Apr 1887 366 Humboldt Hoopa Valley, near Supply Creek. Comment
  HSC7973  Croton setiger H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC99133  Cryptantha affinis Cara Witte 2007-5-29 139 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  UC175691  Cryptantha flaccida Joseph P. Tracy 1908-6 2758 Humboldt opposite Buck Mountain (at Little Van Duzen Bridge); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS67641  Cryptantha intermedia Harley P. Chandler Jun 1901 1302 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UCD119870  Cryptantha leiocarpa Linda M. Barker 1976-4-30 1419 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  UC525586  Cryptantha leiocarpa Joseph P. Tracy 1932-5-10 9939 Humboldt s of point of Cape Mendocino (near ocean shore); Cape Mendocino 3 Comment
  HSC102612  Cryptogramma acrostichoides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1599 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC104274  Cuscuta pacifica var. pacifica Samantha E. Andres 2016-5-29 16 Humboldt Salt Marsh Trail, Lanphere Dunes Unit 30 Comment
  RSA249509  Cuscuta salina R. F. Thorne, P. C. Everett 1965-8-8 35280 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  BLMAR320  Cynosurus cristatus Jennifer Anthony-Wheeler 2002-8-9 320 Humboldt Lost Coast Headland, Growing near pond in lost Coast headlands 121 Comment
  UC1103239  Cynosurus cristatus Joseph P. Tracy 1941-7-26 16969 Humboldt Eureka 30 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
  HSC79447  Cynosurus echinatus Kenneth Clark 1980-4-18 579 Humboldt Access trail to Dead Man's Gulch, Shelter Cove. 122 Comment
  SEINET200939 Image available Cynosurus echinatus Joseph P. Tracy 1947-6-8 17708 Humboldt Carlotta 5 miles east of town by old Strong's District School House [Coordinates estimated along highway] 61 Comment
  UC1056066  Cynosurus echinatus J. I. Mallory 1955-6-7 114 Humboldt n end Luke Prairie; Quad. 29-B-3, n end of Luke Prairie 350 Comment
  JEPS64087  Cyperus bipartitus Joseph P. Tracy 1931-9-7 9664 Humboldt Trinity R. Valley at Willow Creek; Trinity R, Valley, Willow Creek 152 Comment
  UC1103635  Cyperus squarrosus Joseph P. Tracy 1921-9-4 5952 Humboldt mouth of S. Fork Trinity (Trinity R. Valley near Willow Creek); Northern Coast Ranges, Trinity R. Valley, S. Fork Trinity 152 Comment
  UC1196441  Cypripedium californicum Joseph P. Tracy 1926-6-6 7575 Humboldt on road from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UCR123955  Cystopteris fragilis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6970 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  UC37938  Dactylis glomerata Joseph Burtt Davy and Walter C. Blasdale 1899-6-16 5557 Humboldt Scotia Comment
  HSC102143  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1049 Humboldt Patterson Meadows 1566 Comment
  HSC73630  Danthonia californica Marc Baker 1980-7-22 3114 Humboldt Near Grogan Hole. 1676 Comment
  UC37946  Danthonia californica Harley P. Chandler May, 1901 1239 Humboldt North Coast Ranges; Redwood Belt 91 Comment
  SEINET201006 Image available Danthonia pilosa Joseph P. Tracy 1941-8-17 16994 Humboldt Hungry Hollow on Bald Mt. 762 Comment
  HSC39185  Darmera peltata D. E. Anderson, J. P. Smith 1971-6-28 - 1215 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  CAS-BOT-BC420361  Darmera peltata Volney Rattan 1882-1-1 s.n. Humboldt unspecified Comment
  RSA43886  Daucus carota H. M. Pollard 1948-8-7 s.n. Humboldt Near Orleans Comment
  UC673050  Daucus carota Joseph P. Tracy 1940-10-17 16761 Humboldt near Dyerville (South Fork Station); South Fork Station 48 Comment
  HSC97592  Delphinium decorum subsp. tracyi Steven Lee 2004-4-26 29 Humboldt Horse Mtn., 5 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  HSC95837  Delphinium decorum subsp. tracyi Kevin Thomas 2004-4-26 14 Humboldt Titlow Hill Rd. Comment
  UC183075  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4148 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  HSC56226  Delphinium glaucum G. L. Clifton, Griswold 1979-8-2 12268 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA304854  Delphinium gracilentum James R. Shevock 1971-5-29 643 Humboldt Trinity Hwy. 457 Comment
  CAS-BOT-BC10318  Delphinium hesperium D. E. Breedlove 1961-7-4 s.n. Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  UC160927  Delphinium hesperium subsp. hesperium Harley P. Chandler May 1901 1252 Humboldt Redwood Belt North Coast Ranges 152 Comment
  CAS-BOT-BC10138  Delphinium menziesii Mrs. H. C. Cantelow 1941-4-26 s.n. Humboldt 10.3 miles SW of Ferndale on road to Cape Mendocino Comment
  HSC74627  Delphinium nudicaule M. A. Baker 1980-5-17 1251 Humboldt Near Le Perron Peak 1066 Comment
  UC249530  Delphinium nudicaule Joseph P. Tracy 1922-4-30 6012 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC95789  Delphinium nudicaule Kevin Thomas 2004-3-28 9 Humboldt Horse Linto Creek Campground Comment
  POM126514  Delphinium nudicaule Joseph P. Tracy 1922-4-30 6012 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  CAS-BOT-BC121968  Delphinium trolliifolium Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  RSA114995  Delphinium trolliifolium E. K. Balls, Lee W. Lenz 1955-5-15 20736 Humboldt 9.9 miles SW from Fernbridge, along Old Coast road to Capetown. 503 Comment
  SEINET12099649  Delphinium trolliifolium J. P. Tracy 1951-1 s.n. Humboldt half way between Snow Camp and Twin Lakes Comment
  CAS-BOT-BC194292  Deschampsia cespitosa subsp. cespitosa Carl B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  CAS-BOT-BC192545  Deschampsia cespitosa subsp. holciformis J. B. Davy; W. C. Blasdale 1899-5-1 6214 Humboldt Eureka Comment
  CHSC31326  Deschampsia cespitosa subsp. holciformis Mark Stopher 1980-6-4 94 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  CAS-BOT-BC192702  Deschampsia danthonioides L. B. Kildale 1930-6-1 9768 Humboldt Klamath River at Bluff Creek Comment
  POM207195  Deschampsia elongata Jos Burtt Davy, W. C. Blasdale 1899-08 5516 B Humboldt Near Pepperwood Comment
  UC1541536  Deschampsia elongata Harold E. Parks May 1931 3232 a Humboldt Big Lagoon Comment
  UCR52469  Deschampsia elongata J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Environs of Mud Sprng. Big Hill Road (F.S. 8N01) 1246 Comment
  CAS-BOT-BC201782  Deschampsia elongata Henry M. Pollard 1947-8-22 s.n. Humboldt Fontana's Fishing Lodge, nr. Orleans Comment
  HSC37421  Dicentra formosa Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 514 Humboldt Along Lost Man Creek. 38 Comment
  HSC34639  Dicentra formosa David M. Brazelton 1975-4-10 6 Humboldt 150 yards SW of junction of Fieldbrook Rd. and Evans Rd. Comment
  SEINET12103157  Dicentra formosa Unknown 1936-1 13351 Humboldt Comment
  UC176178  Dichelostemma capitatum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3614 Humboldt near Hydesville; Northen Coast Region 30 Comment
  SEINET12053836  Dichelostemma capitatum L. K. Henry 1971-1 Humboldt along Rt. 36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  HSC102206  Dichelostemma ida-maia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1121 Humboldt Andy's Camp 1564 Comment
  JEPS508  Dichelostemma ida-maia Joseph P. Tracy 1937-7-19 15450 Humboldt nw slope Buck Mountain 914 Comment
  SEINET12053109  Dichelostemma ida-maia J. P. Tracy, Murphy, A. H. 1951-1 19568 Humboldt vicinity of Twin Lakes and Snow Camp Comment
  SEINET12053111  Dichelostemma ida-maia L. K. Henry 1971-1 s.n. Humboldt along Rt.36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  UC1198161  Dichelostemma multiflorum Joseph P. Tracy 1911-7-6 3346 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  SD58400  Dichelostemma venustum Milo S. Baker 1923-7-28 138 d Humboldt Locality given as: growing within a few feet of Brodiaea Collector's #137.; not in our database at present 3/19/08; ?Baker Collector's #137 in our collection. Comment
  CDA6260  Digitalis purpurea T. C. Fuller 1958-6-17 1725 Humboldt Petrolia, Lower Mattole. 0 Comment
  CAS-BOT-BC150346  Diplacus aurantiacus Alice Eastwood 1907-4-21 6 Humboldt Trinidad Comment
  SEINET8354549  Diplacus aurantiacus Unknown 1960-6-9 935 Humboldt 2 mi. s. Miranda; U.S. Hwy 101. 91 Comment
  UC602572  Dipsacus sativus Joseph P. Tracy 1937-8-3 15610 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  SEINET4170350  Disporum hookeri Bassett Maguire, Ruth Maguire , C. B. Maguire 1934-6-8 15087 Humboldt Bolling Grove State Park Comment
  UCR26493  Disporum smithii A. C. Sanders 1981-8-6 2304 Humboldt Patrick's Point State Park, north of Eureka 30 Comment
  UCR67630  Disporum smithii Michael A. Hanson 1990-5-21 71 Humboldt Little Creek Trail in Redwood National Park; on the E side of Hwy 101 c. 7 mi (11 km) south of Klamath. 325 Comment
  JEPS14701  Dodecatheon jeffreyi Joseph P. Tracy 1927-8-22 8340 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA23339  Downingia elegans var. corymbosa Joseph P. Tracy 1923-6-20 6339 Humboldt Miranda. 122 Comment
  RSA654125  Downingia yina Beecher Crampton 1956-6-26 3651 Humboldt Margin of Snow's Lake, 3.5 miles east of Seigler Springs Comment
  CAS-BOT-BC401537  Drosera rotundifolia Doris K. Kildale 1929-8-5 8772 Humboldt Big Lagoon Comment
  CAS-BOT-BC401534  Drosera rotundifolia Carl B. Wolf 1927-8-1 s.n. Humboldt Marsh near Eureka Comment
  CAS-BOT-BC159609  Drymocallis glandulosa var. glandulosa M. S. Jussel 1931-5-2 139 Humboldt 6 miles from Garberville Comment
  CAS-BOT-BC159613  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1929-5-26 9136 Humboldt Klamath River at Orleans 152 Comment
  UC12540  Drymocallis glandulosa var. wrangelliana C. C. Marshall 1888-1 Humboldt Comment
  UC1198688  Drymocallis lactea var. austiniae Joseph P. Tracy 1933-7-25 12841 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC31442  Drymocallis lactea var. lactea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5560 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC44528  Drymocallis lactea var. lactea Brad Klipfel 1973-7-1 136 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57995  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-7-31 11758 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC70872  Dryopteris arguta Doris K. Kildale 1928-12-30 6884 Humboldt Phillipsville Comment
  RSA137328  Dryopteris arguta I. L. Wiggins 1957-6-21 14140 Humboldt Margin of grassy slide area on east side of road, 1 mile south of Garberville Comment
  RSA46702  Dryopteris expansa C. R. Fraser-Jenkins 1928-12-23 6761 Humboldt Humboldt Co. Comment
  CAS-BOT-BC197062  Echinochloa crus-galli Henry M. Pollard 1945-8-24 s.n. Humboldt Near Harley place Comment
  SEINET200660 Image available Echinochloa crus-galli J. P. Tracy 1938-8-14 16115 Humboldt Trinity River Valley near the South Fork 183 Comment
  UC34075  Echinochloa crus-galli J. P. Tracy 1900-11-1 973 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC113646  Eleocharis acicularis LeRoy Abrams 1916-7-18 6095 Humboldt Lagoon back of dunes. Arcata to Trinidad. Comment
  CAS-BOT-BC112840  Eleocharis macrostachya LeRoy Abrams 1922-6-25 8267 Humboldt Big Lagoon, south of Orick Comment
  CHSC33040  Eleocharis macrostachya Thomas Nelson 1977-9-22 3749 Humboldt In drainage ditch along east side of State Route 101 just north of the Eureka Airport. Comment
  HSC98584  Eleocharis macrostachya Cara Witte 2008-7-16 923 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  CAS-BOT-BC112839  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  CAS-BOT-BC112660  Eleocharis parvula Robert F. Thorne; P. Everett 1965-8-9 35342 Humboldt along Hwy 101, ca 3 mi N of Eureka along roadside. 1 Comment
  RSA246895  Eleocharis radicans Robert F. Thorne, Percy C. Everett 1965-8-9 35342 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  UC552793  Elymus elymoides subsp. elymoides Joseph P. Tracy 1935-7-28 14317 Humboldt Devil's Hole Trinity Summit (head) 1828 Comment
  HSC58665  Elymus elymoides var. elymoides G. L. Clifton, Griswold 1979-8-1 12052 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  CDA31707  Elymus glaucus Russell Graham Aug 1960 Humboldt Near Weitchpec 0 Comment
  HSC64155  Elymus glaucus J. O. Sawyer, K. A. Sawyer 1979-6-24 3399 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC589939  Elymus glaucus H. S. Yates 1936-6-17 5695 Humboldt Buck Mountain South Fork Pk. Quadrangle (lower nw slope) 792 Comment
  CAS-BOT-BC203475  Elymus glaucus subsp. glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie, on Bald Mountain 1066 Comment
  HSC9745  Elymus glaucus subsp. glaucus D. E. Anderson 1962-7-10 2249 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  HSC97925  Elymus glaucus subsp. glaucus Cara Witte 2007-6-14 277 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  JEPS72931  Elymus glaucus subsp. jepsonii Lincoln Constance 1934-5-23 612 Humboldt se slope of mt. above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  RSA10136  Elymus glaucus subsp. jepsonii Joseph P. Tracy 1933-8-6 12950 Humboldt French Camp Ridge. 1067 Comment
  UC212884  Elymus glaucus subsp. virescens Joseph P. Tracy 1920-7-4 5340 Humboldt Little River Beach Northern Coast Ranges (rocky bluffs facing ocean) 15 Comment
  UCD62413  Elymus glaucus subsp. virescens P. B. Kennedy 1928-7-16 Humboldt Near Trinidad. Comment
  HSC10936  Elymus mollis subsp. mollis J. W. Johnson 1962-4-29 1297 Humboldt W.M Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC8766  Elymus trachycaulus subsp. trachycaulus J. P. Tracy 1926-7-5 7736 Humboldt Valley of South Yager Creek 762 Comment
  SD90214  Epilobium angustifolium Benjamin C. Stone Jun 1952 129 Humboldt 20 miles south of Klamath. 14 Comment
  HSC57372  Epilobium brachycarpum Overton, Butler 1979-7-26 10086 Humboldt Near Cold Spring, close to the town of Willow Creek 1408 Comment
  RSA610462  Epilobium brevistylum R. S. Woglum 1938-8-29 2027 Humboldt Northern Coast Ranges: Trinidad, southwest of Redwood National Park. Comment
  UC314620  Epilobium campestre Joseph P. Tracy 1923-6-20 6341 Humboldt Miranda 91 Comment
  HSC53857  Epilobium ciliatum Griswold, Butler 1979-7-10 6328 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC198619  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-9-5 4768 Humboldt 4 mi above mouth; Northern Coast Ranges, South Fork of Eel River 60 Comment
  JEPS39330  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-9-5 4768 Humboldt 4 mi above river mouth (i.e., near Weott); Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC48854  Epilobium ciliatum subsp. glandulosum Brad Klipfel 1973-7-15 213 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC668281  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1937-7-25 15562 Humboldt nw Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC12701  Epilobium ciliatum subsp. watsonii Jana Kattenhorn 1970-10-28 155 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC39947  Epilobium ciliatum subsp. watsonii Linda M. Barker 1976-7-5 1637 Humboldt 3 mi. W of Arcata Comment
  HSC90695  Epilobium ciliatum subsp. watsonii Gail Newton 1983-6-5 3556 Humboldt Elk River Wildlife Area, Eureka Comment
  POM225523  Epilobium ciliatum subsp. watsonii P. A. Munz 1936-8-13 14385 Humboldt Clam Beach Comment
  HSC98657  Epilobium densiflorum Cara Witte 2007-7-3 408 Humboldt White Oak Opening. 1242 Comment
  UC505125  Epilobium densiflorum Joseph P. Tracy 1932-8-21 10361 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower w foothills of mt.) 457 Comment
  HSC55113  Epilobium glaberrimum G. L. Clifton 1979-7-31 11868 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC54877  Epilobium lactiflorum G. L. Clifton, Griswold 1979-7-25 10869 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC41818  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3514 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  UC1198479  Epilobium minutum Joseph P. Tracy 1933-7-25 12839 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC79541  Epilobium minutum Kenneth Clark 1981-4-5 1300 Humboldt Dead Man's Gulch, Shelter Cove 11 Comment
  JEPS31474  Epilobium minutum Joseph P. Tracy 1926-6-20 7617 Humboldt Horse Mountain Northern Coast Ranges (along streamlets) 1524 Comment
  JEPS39325 Image available Epilobium oreganum Chesnut and Drew 1888-8-1 Humboldt near Grouse Creek Comment
Read comments
Jun 21 2008
  HSC16602  Epipactis gigantea J. Wendell Howe 1931-6-18 Humboldt Redway Comment
  HSC60046  Equisetum arvense M. A. Baker 1978-5-6 508 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC667935  Equisetum hyemale subsp. affine Joseph P. Tracy 1928-6-17 8456 Humboldt at Willow Creek Trinity River Valley Comment
  RSA53855  Equisetum hyemale var. affine Henry M. Pollard 1946-8-31 s.n. Humboldt New Wilson Creek, Orleans Mt. Comment
  HSC22867  Equisetum laevigatum D. E. Anderson 1965-6-10 3792 Humboldt Along NW Pacific railroad tracks in Eureka, in harbor area and adjacent sites Comment
  POM182455  Equisetum laevigatum Joseph P. Tracy 1913-6-16 4142 Humboldt Dinsmore s Ranch, in valley of Van Duzen River. Opposite Buck Mtn. 762 Comment
  UC503078  Equisetum laevigatum H. E. Parks and Joseph P. Tracy 1927-4-24 7925 Humboldt Eureka along R.R. track Eureka; Northern Coast Ranges 6 Comment
  CHSC8  Equisetum telmateia subsp. braunii M. Anthony 1960-5-14 Humboldt Arcata. Comment
  RSA684699  Equisetum telmateia var. braunii N. R. Zabriskie, W. M. Zabriskie 1968-8-22 153 Humboldt Along road to Cap Mendocino. Comment
  HSC9785  Eragrostis mexicana subsp. virescens J. P. Tracy 1931-9-7 9653 Humboldt Trinity River Valley, Willow Creek Comment
  HSC48317  Ericameria greenei Brad Klipfel 1973-8-3 307 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM161486  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt Trinity Summit 1890 Comment
  UC205183  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit (open places in shasta fir belt) 1889 Comment
  UC581714  Erigeron aliceae Joseph P. Tracy 1937-8-12 15660 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC296111  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC296120  Erigeron foliosus var. confinis Alice Eastwood; John Thomas Howell 1937-6-26 5071 Humboldt Near Orleans Comment
  RSA90920  Erigeron foliosus var. confinis F. W. Peirson 1926-7-13 7049 Humboldt River bottom, near Blue Lake, Mad River Comment
  UC34629  Erigeron foliosus var. mendocinus Chesnut and Drew 1888-7-10 Humboldt Mad River Comment
  CAS-BOT-BC308076  Erigeron glaucus J. P. Tracy 1900-7-4 888 Humboldt Samoa, opp. Eureka Comment
  HSC39954  Erigeron glaucus Linda M. Barker 1976-6-22 1616 Humboldt 3 mi. W of Arcata Comment
  JEPS94286  Erigeron glaucus Vernon Oswald and Lowell Ahart 1997-9-4 8851 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  HSC90474  Erigeron glaucus Jean Hanson 1980-8-28 122 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  UC1199441  Erigeron glaucus Joseph P. Tracy 1913-9-21 4409 Humboldt dunes of ocean beach at Humboldt Bay Comment
  HSC74424  Erigeron klamathensis Gail Newton 1980-7-24 1766 Humboldt Near Somes Mtn. 1615 Comment
  HSC66281  Erigeron maniopotamicus M. A. Baker 1980-6-28 2499 Humboldt Near Mad River Buttes 1445 Comment
  CAS-BOT-BC214586  Erigeron philadelphicus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  HSC5526  Erigeron philadelphicus W. K. Parks Jun 1932 1381 Humboldt Trinidad Comment
  HSC79512  Erigeron philadelphicus Kenneth Clark 1980-6-14 697 Humboldt Shelter Cove; in stream alluvium of N fork of Dead Man's Gulch 198 Comment
  UCSB15926  Erigeron philadelphicus Breedlove, Dennis 1962-6-8 Humboldt On U.S. Highway 101, 3 miles south of Orick Comment
  JEPS41378  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1934-5-7 16688 Humboldt Bull Creek Comment
  HSC70691  Eriodictyon californicum Gail Newton 1980-7-15 1566 Humboldt Near Sims Mtn. 1311 Comment
  POM208988  Eriodictyon californicum Lincoln Constance 1934-6-15 887 Humboldt Grasshopper Pk.; Bull Creek watershed, Humboldt Redwood Park. 976 Comment
  HSC55163  Eriogonum compositum Gilbert Muth 1979-8-1 12142 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC672919  Eriogonum compositum var. compositum Joseph P. Tracy 1932-7-12 10460 Humboldt head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  CAS-BOT-BC259154  Eriogonum latifolium Alice Eastwood 1923-8-14 12313 Humboldt Samoa Comment
  CAS-BOT-BC259157  Eriogonum latifolium Ira L. Wiggins 1930-7-11 4680 Humboldt Near Samoa Comment
  CAS-BOT-BC259162  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  CAS-BOT-BC259180  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River Comment
  CHSC55905  Eriogonum latifolium L. P. Janeway 1987-7-31 2539 Humboldt Vicinity of Eurekal North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  JEPS95110  Eriogonum latifolium Vernon Oswald and Lowell Ahart 1997-9-4 8853 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  RSA423114  Eriogonum latifolium M. B. Dunkle 1936-8-18 4818 Humboldt Moonstone Beach. Comment
  SBBG28255  Eriogonum latifolium H. E. Parks -Aug-1941 24198 Humboldt Little River Comment
  UC418996  Eriogonum latifolium H. E. Parks 1924-8-5 2454 Humboldt sand dunes, Little River lagoon Little River lagoon Comment
  JEPS57407  Eriogonum luteolum L. R. Heckard with T. I. Chuang 1968-7-5 1987 Humboldt 4.3 mi n, on Mail Ridge road Harris road Comment
  CAS-BOT-BC259529  Eriogonum luteolum var. luteolum Henry M. Pollard 1945-8-25 s.n. Humboldt Between Orleans & Camp Creek, Klamath River Canyon Comment
  HSC54526  Eriogonum nudum Overton, Butler 1979-7-23 9464 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC60052  Eriogonum nudum var. nudum M. A. Baker 1978-5-6 487 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC1198138  Eriogonum nudum var. nudum Joseph P. Tracy 1930-6-15 8766 Humboldt Dobbyn Creek 152 Comment
  UC672904  Eriogonum nudum var. nudum Joseph P. Tracy 1932-7-20 10728 Humboldt open places at Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC1198146  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1948-8-8 18095 Humboldt near school house; Iaqua 609 Comment
  UC672897  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1933-7-25 12881 Humboldt Grouse Mountain 1524 Comment
  HSC55136  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-8-1 12001 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC55278  Eriogonum umbellatum var. stellatum Overton, Butler 1979-8-2 12689 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SEINET3841343 Image available Eriogonum umbellatum var. stellatum Joseph P. Tracy 1935-7-28 14329 Humboldt Trinity Summit, Head of Devil's Hole 1829 Comment
  UC2016489  Eriophyllum confertiflorum Richard Olmstead 1986-6-20 905 Humboldt North of Orleans 3 miles, at Whitmore Creek on Highway 96. Comment
  POM265903  Eriophyllum lanatum var. achilleoides Lincoln Constance, Reed C. Rollins 1942-5-12 2886 Humboldt Mouth of Bluff Creek, 6 miles NE of Weitchpec. 152 Comment
  CAS-BOT-BC301388  Eriophyllum lanatum var. grandiflorum Harley P. Chandler 1901-6-1 1301 Humboldt North Coast Ranges. Hupa Indian Reservation 152 Comment
  UC76599  Eriophyllum lanatum var. grandiflorum Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  CAS-BOT-BC302012  Eriophyllum staechadifolium Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick Comment
  HSC35083  Eriophyllum staechadifolium Rudolf W. Becking, Thomas Overturf 1974-9-1 Humboldt S of the mouth of the Mattole River Comment
  UC665539  Eriophyllum staechadifolium H. E. Parks 1941-8-1 24192 Humboldt sand bluffs near Trinidad; Northwestern California Comment
  RSA43867  Erodium brachycarpum H. M. Pollard 1947-8-18 s.n. Humboldt Orleans Hotel grounds, Orleans. Comment
  JEPS61382  Erodium cicutarium Lincoln Constance 1934-5-27 702 Humboldt s end Dyerville Bridge (South Fork Eel River); , Bull Creek Region 45 Comment
  HSC90471  Erodium cicutarium Jean Hanson 1980-4-12 34 Humboldt Eureka, Indian Island in Humboldt Bay. W end of island. Comment
  HSC101975  Erysimum capitatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 872 Humboldt Patterson Meadows 1566 Comment
  HSC82395  Erysimum capitatum Thomas W. Nelson 1979-7-11 5008 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  SEINET10970607  Erysimum capitatum Jones 1985-6-6 Jones 115 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, quercus Chrysolepis, quercus vaccinifolia habitat. Growing on rock wall 1143 Comment
  HSC79053  Erythronium grandiflorum subsp. grandiflorum D. K. Imper 1984-5-16 Humboldt 0.25 mi. E of 6N01 where it junctions with 6N08 1524 Comment
  HSC104331  Erythronium oregonum James Regan, Humboldt Redwood Co., LLC 2007-5-3 21 Humboldt Long Ridge, near Taylor Peak, west of Scotia / Bear River 793 Comment
  HSC15500  Erythronium oregonum subsp. leucandrum D. E. Anderson 1963-3-23 2400 Humboldt 2 mi. N of Beaver School 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
  JEPS61873  Erythronium revolutum Joseph P. Tracy 1918-5-4 Humboldt Eureka Comment
  HSC45483  Eschscholzia californica Maralyn O'Meara 1974-7-11 534 Humboldt Kneeland, Barry Ridge Comment
  HSC58769  Eucephalus ledophyllus Terry Griswold 1979-7-26 10299 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC58813  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-8-1 12049 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC5706  Euchiton gymnocephalus G. N. Bos 1965-5-15 254 Humboldt 8 mi. W of Berry Summit, along Hwy. 299 762 Comment
  UC1223115  Euchiton gymnocephalus Joseph P. Tracy 1946-5-30 17548 Humboldt near old Strong's District School House (burned down); Riverside Park Comment
  UC1199351  Euchiton sphaericus Joseph P. Tracy 1920-9-19 5399 Humboldt North Fork of Mad River Northern Coast Ranges, North Fork of Mad River 304 Comment
  UC204747  Euchiton sphaericus Joseph P. Tracy 1918-9-29 5103 Humboldt 4 mi above the mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  CAS-BOT-BC310489  Euchiton sphaericus Joseph P. Tracy 1915-9-12 4677 Humboldt Northern Coast Ranges. Mouth of Laribee Creek 60 Comment
  CAS-BOT-BC310495  Euchiton sphaericus John Thomas Howell 1936-8-29 12888 Humboldt Eel River 16 miles n. of Garberville Comment
  HSC102563  Euonymus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1550 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1198972  Euphorbia crenulata Joseph P. Tracy 1925-5-17 6986 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1198985  Euphorbia crenulata Joseph P. Tracy 1928-2-26 8396 Humboldt near Centerville (at Fleener's Gulch); Northern Coast Ranges 30 Comment
  UC302052  Euphorbia peplus Joseph P. Tracy 1926-5-15 7473 Humboldt Eureka; North Coast Ranges 0 Comment
  UC165017  Eurybia radulina Joseph P. Tracy 1909-9-12 3082 Humboldt region about Humboldt Bay, Humboldt Hill Humboldt Bay, Humboldt Hill 152 Comment
  HSC67010  Euthamia occidentalis J. P. Smith 1971-10-9 5005 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UCD98912  Fallopia sachalinensis H. E. Parks; S. T. Parks 1952-6-1 24448 Humboldt South of the Elk River Bridge on Highway 10. Comment
  UC70822  Festuca altaica Joseph Burtt Davy and Walter C. Blasdale 1899-6-22 5746 Humboldt Trinity Summit Comment
  UC1145208  Festuca californica Joseph P. Tracy 1938-6-13 15903 Humboldt Horse Mountain 1432 Comment
  UC187110  Festuca elmeri Joseph P. Tracy 1908-6 2741 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET200326  Festuca myuros J. P. Tracy 1914-5-14 4432 Humboldt Northern Coast Ranges Fort Seward. 122 Comment
  HSC70396  Festuca occidentalis M. A. Baker 1980-6-7 1808 Humboldt Near Brush Mtn. 1128 Comment
  HSC9952  Festuca occidentalis D. J. Wilder 1965-4-24 8 Humboldt Along road to Maple Creek from Korbel. Comment
  SBBG53089  Festuca perennis R. N. Philbrick, J. R. Haller 1976-6-26 9 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  UCD66284  Festuca roemeri Collector Unknown 1951-6-18 Humboldt Collected at Snail Ridge near Hydesville. Comment
  UC526868  Festuca rubra Joseph P. Tracy 1927-6-26 8217 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  UC179919  Festuca viridula Joseph P. Tracy 1912-7-7 3741 Humboldt Eureka Northern Coast Region 0 Comment
  HSC18623  Fragaria chiloensis J. W. Johnson 1962-4-29 1300 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  RSA296728  Fragaria chiloensis J. P. Smith 1977-6-30 9205 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC1198724  Fragaria chiloensis Joseph P. Tracy 1918-5-5 4922 Humboldt Ocean Beach Humboldt Bay Comment
  HSC103984  Fragaria vesca E. R. Fyer 2015-3-19 12 Humboldt Turnout along side Hwy. 299, near a small creek 459 Comment
  HSC31646  Fragaria vesca Timothy B. Devine 1974-5-4 315 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC73774  Fragaria vesca M. A. Baker 1980-6-7 1779 Humboldt Near Brush Mtn. 1128 Comment
  CAS-BOT-BC437050  Fragaria vesca subsp. bracteata M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale 8 miles norht of Garberville Comment
  UC492173  Fragaria virginiana subsp. platypetala Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC18394  Frangula californica P. W. Shields May 1955 Humboldt 2 mi N of Willow Creek Comment
  CAS-BOT-BC52736  Frangula californica subsp. californica Carl B. Wolf 1927-8-30 1249 Humboldt At a small creek 3 miles south of Thorn. Comment
  CAS-BOT-BC59955  Frangula purshiana Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC59446  Frangula purshiana Kenneth Clark 1979-5-29 367 Humboldt 0.1 mi. past end of Granite Ave. 23 Comment
  UCD112819  Frangula purshiana Linda M. Barker 1976-7-5 1648 Humboldt Lanphere-Christensen Dunes 3 miles west of Arcata. Comment
  HSC89632  Fraxinus latifolia Anthony J. Desch, Bryon Cariss 1988-4-23 65 Humboldt 3.7 mi. N of Hwy. 299 on Stover Rd. 244 Comment
  UC562744  Fraxinus latifolia Joseph P. Tracy 1928-4-8 8410 Humboldt Carlotta Northern Coast Ranges 60 Comment
  SDSU19198  Fritillaria affinis Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3008 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.2 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  UC1197624  Fritillaria affinis Joseph P. Tracy 1937-6-12 8151 Humboldt Horse Mountain 1371 Comment
  HSC43114  Fritillaria affinis Maralyn O'Meara 1974-5-14 362 Humboldt Beside Hwy. 36, 14.2 mi. E of Bridgeville Comment
  HSC30177  Fritillaria purdyi Thomas W. Nelson 1974-5-7 1232 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC38706  Fritillaria purdyi J. P. Smith 1976-5-29 8816 Humboldt Horse Mtn. 1402 Comment
  HSC45634  Galium aparine Diane L. Reed 1978-4-22 30 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  JEPS25693  Galium aparine P. C. Hutchison 1961-5-22 2021 Humboldt US 299 5.4 mi ne Klamath River bridge at Weitchpec (10 mi sw of Orleans, w side of river); Klamath River Comment
  UC35335  Galium bolanderi Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  HSC97949  Galium bolanderi Cara Witte 2007-6-26 352 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1388 Comment
  JEPS81017  Galium divaricatum Thomas W. Nelson and Jane P. Nelson 1977-9-4 3746 Humboldt in cultivated area town of Willow Creek Comment
  UC213506  Galium parisiense Joseph P. Tracy 1920-7-11 5343 Humboldt near Arcata (around Humboldt Bay); Northern Coast Ranges, Fickle Hill 304 Comment
  UC175604  Gamochaeta ustulata Joseph P. Tracy 1913-6-21 4255 Humboldt Dinsmore's Ranch, opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  CAS-BOT-BC200578  Garrya buxifolia Carl B. Wolf 1927-8-28 1169 Humboldt Lord Ellis Road to Blue Lake, 9 mi. from Willow Creek, 2 mi. from summit Comment
  CAS-BOT-BC188531  Garrya elliptica Doris K. Kildale 1925-5-25 6043 Humboldt Eureka Slough, Eureka Comment
  HSC22830  Garrya elliptica Gene S. Van Horn 1963-1-5 35 Humboldt On W.M. Lanphere's ranch 9 Comment
  UC154051  Garrya elliptica J. P. Tracy 1901-1-27 990 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  CAS-BOT-BC182145  Garrya fremontii L. B. Kildale 1931-10-1 s.n. Humboldt Bug Creek, Caparall Mt. 1097 Comment
  HSC39551  Garrya fremontii Thomas W. Nelson 1976-6-10 2703 Humboldt Along ridge S of E peak of Lassic Peak 1646 Comment
  HSC43109  Garrya fremontii Brad Klipfel 1975-5-30 650 Humboldt Horse Mtn. Comment
  UC1122677  Garrya fremontii A. E. Wieslander 1931-5-17 196 Humboldt Bald Hills; Hoopa Quad. Comment
  HSC9992  Gastridium phleoides True Hoyle 1967-7-9 27967 Humboldt 2 mi. NW from the junction of Fickle Hill and Butler Valley Rds. 457 Comment
  HSC73068  Gaultheria ovatifolia M. A. Baker 1980-6-16 1953 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC58915  Gaultheria shallon Doris K. Kildale 1927-9-9 3958 a Humboldt Big Lagoon Comment
  CHSC27317  Gaultheria shallon T. B. Devine 1977-8-20 458 Humboldt Kneeland Road, 1 mi n of Kneeland. 548 Comment
  CHSC57372  Gaultheria shallon Eric G. Hartwell 1983-3-30 7 Humboldt Ca. 0.25 miles east of jct. of Jacoby Creek Rd. and Sonnenfelt Rd. T05N R01? S11 NW1/4 of SE1/4. 97 Comment
  HSC89436  Gaultheria shallon P. A. Daly 1984-5-13 25 Humboldt Along trail/Rd. at Trinidad Head. 61 Comment
  SBBG25595  Gaultheria shallon E. R. Blakley 1966-8-17 6793 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  SDSU2867  Gaultheria shallon D. F. Howe 1961-8-1 3106 Humboldt 6 miles north of Trinidad on #101. Comment
  UC1120968  Gaultheria shallon A. E. Wieslander 1931-5-21 211 Humboldt on ridge near Kneeland Comment
  UC562735  Gaultheria shallon Joseph P. Tracy 1936-6-28 15017 Humboldt Bald Mountain at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  UCSB4793  Gaultheria shallon Keator, Glenn 1958-6-18 Humboldt Road between Bridgeville and Kneeland Comment
  HSC102929  Gayophytum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 901 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC54671  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9910 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC76038  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-8-2 12582 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1196960  Gayophytum humile Joseph P. Tracy 1930-7-23 9117 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC16406  Gayophytum ramosissimum J. P. Tracy 1933-7-26 12919 Humboldt Grouse Mtn. 1524 Comment
  JEPS47047  Gentiana affinis var. ovata W. L. Jepson 1902-8-1 2134 Humboldt Loleta 60 Comment
  UC1198638  Gentiana affinis var. ovata J. P. Tracy 1896-8 15 Humboldt immediate vicinity Eureka; Rick's Prairie 0 Comment
  HSC22015  Gentiana sceptrum Thomas W. Nelson 1970-10-17 237 Humboldt Big Lagoon Comment
  UC1197397  Geranium bicknellii Joseph P. Tracy 1949-8-4 18422 Humboldt Mud Springs Trinity Summit 1341 Comment
  UC1197399  Geranium carolinianum Joseph P. Tracy 1912-7-4 3723 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC198601  Geranium dissectum Joseph P. Tracy 1916-5-31 4697 Humboldt Holmes Flat, along Eel River from South Fork to Scotia Northern Coast Ranges, Eel River 60 Comment
  HSC8640  Geranium dissectum R. D. Modafferi 1965-5-13 103 Humboldt 2.3 mi. N of Trinidad on Trinity St. 305 Comment
  CDA43207  Geranium molle Richard R. Halse 2015-3-26 9382 Humboldt Eureka; by a Texaco station near 3543 Broadway St. ((U.S. Highway 101) and its intersection with McCullens Ave. Comment
  HSC44760  Geranium oreganum Maralyn O'Meara 1972-6-8 80 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC97970  Gilia capitata subsp. capitata Cara Witte, Michael Scott 2007-6-22 346 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  JEPS76131  Gilia millefoliata Joseph P. Tracy 1917-5-30 4794 Humboldt Little River Beach Northern Coast Ranges, Little River Beach 6 Comment
  JEPS86031  Gilia millefoliata Joseph P. Tracy 1936-5-30 14833 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, , near Samoa 6 Comment
  UC146177  Gilia millefoliata Joseph P. Tracy 1905-6-11 2190 Humboldt sandy soil at Bucksport Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  SD39903  Glehnia littoralis Edith A. Purer 1932-7-27 4151 Humboldt Near Samoa Comment
  CAS-BOT-BC218429  Glehnia littoralis subsp. leiocarpa A. A. Heller 1924-7-24 13882 Humboldt Dunes at Humboldt County camp 7 miles south of Trinidad Comment
  UCD127514  Glehnia littoralis subsp. leiocarpa Linda M. Barker 1976-6-22 1626 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1132071  Glyceria occidentalis H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad 0 Comment
  CAS-BOT-BC302540  Gnaphalium palustre Harold E. Parks 1937-7-1 24046 Humboldt Spruce Cove, Trinidad Comment
  POM257415  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-1 24026 Humboldt Spruce Cove, Trinidad. Comment
  UC204751  Gnaphalium palustre Joseph P. Tracy 1918-7-5 5012 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  UC582518  Gnaphalium palustre Joseph P. Tracy 1933-8-30 13043 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC103576  Gnaphalium palustre Thomas W. Nelson, Jane Nelson 1981-8-10 6736 Humboldt Eureka; along old logging road just south of Lundbar Hills. Comment
  RSA168835  Gnaphalium sphaericum Joseph P. Tracy 1942-7-26 17299 Humboldt On the Redwood House road at old mill site, 1 mile N of Redwood House. Valley of South Yager Creek. 457 Comment
  UC1225875  Goodyera oblongifolia Joseph P. Tracy 1947-8-24 17907 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  HSC98225  Goodyera oblongifolia A. M. Montalvo, J. D. Ackerman 1974-7-17 374 Humboldt About 7 mi. E of Carlotta, off Hwy. 36. Redwood Grove, E of Van Duzen Grove County Park. Van Duzen River Valley. 61 Comment
  POM225484  Goodyera oblongifolia Philip A. Munz 1936-8-10 14336 Humboldt Van Duzen River, 15 miles east of Fortuna Comment
  CAS-BOT-BC304753  Grindelia hirsutula Marcus E. Jones 1931-7-16 29143 Humboldt Arcata Comment
  CAS-BOT-BC304759  Grindelia hirsutula Roxana S. Ferris 1937-8-21 9388 Humboldt Shelter Cove Comment
  HSC5697  Grindelia hirsutula D. E. Anderson 1963-5-25 2483 Humboldt 2-3 mi. N of Capetown Comment
  UC1239637  Hackelia bella Joseph P. Tracy 1937-7-29 15587 Humboldt w slope near top at Hyampom Trail; South Fork Mountain 1676 Comment
  HSC102027  Hackelia micrantha M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 928 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  CAS-BOT-BC302441  Hazardia whitneyi var. discoidea Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC58205  Helenium bigelovii Walter Overton 1979-8-1 12319 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  CAS-BOT-BC306870  Helenium bolanderi Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  UC34533  Helianthus bolanderi Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
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Apr 6 2008
  CAS-BOT-BC309998  Hemizonia congesta subsp. tracyi Thomas Nelson; Jane Nelson; James Nelson 1975-6-21 1950 Humboldt Beside highway 36 ca. 5 mi. east of Bridgeville Comment
  HSC35966  Hemizonia congesta subsp. tracyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-21 1950 Humboldt Beside Hwy. 36 ca. 5 mi. E of Bridgeville Comment
  CDA40919  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 2 of 3 0 Comment
  HSC38910  Heracleum maximum J. P. Smith 1970-6-7 3801 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC44596  Heracleum maximum Brad Klipfel 1973-7-15 192 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1199419 Image available Hesperevax sparsiflora var. brevifolia Joseph P. Tracy 1932-5-16 10107 Humboldt near Samoa; Humboldt Bay 6 Comment
  RSA249393  Heterocodon rariflorum D. E. Anderson, Thomas W. Nelson, S. Dowty 1974-6-17 5709 Humboldt McKeown Ranch N of Dinsmore. Comment
  BLMAR190  Heteromeles arbutifolia Donald Hazlett 1994-6-7 190 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  SEINET5782099 Image available Heterotheca oregona S. K. Harris 1938-8-24 Humboldt Eel River, near Fernbridge Comment
  UC581756  Heterotheca oregona var. rudis Joseph P. Tracy 1930-7-27 9112 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  HSC57107  Hieracium albiflorum Overton, Butler 1979-7-25 9845 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC582415  Hieracium albiflorum Joseph P. Tracy 1932-7-12 10433 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  RSA47102  Hieracium albiflorum Doris K. Kildale 1925-7-15 1088 Humboldt Eureka Slough. Comment
  HSC57977  Hieracium greenei G. L. Clifton, Griswold 1979-7-31 11701 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1299270  Hieracium greenei Freed W. Hoffman 1949-7-15 3010 Humboldt a little s of Blue Ridge; Mt. Lassic Comment
  UC1199466  Hieracium nudicaule Joseph P. Tracy 1929-7-4 8633 Humboldt French Camp Ridge 1066 Comment
  CHSC10109  Hierochloe occidentalis J. W. Johnson 1962-3-14 1120 Humboldt Woods at the side of Miller Lane, Lanphere Farm, Samoa Penninsula. Comment
  UC1103736  Hierochloe occidentalis Joseph P. Tracy 1921-3-20 5423 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  HSC37237  Holcus lanatus Lon Hall 1975-6-19 401 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC79451  Holcus lanatus Kenneth Clark 1980-6-14 673 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  HSC81934  Holcus lanatus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4959 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC89550  Holcus lanatus M. Roantree 1985-5-7 42 Humboldt SW side of Trinidad Head, along trail Comment
  UCR122375  Holcus lanatus George K. Helmkamp, E. A. Helmkamp 2001-7-8 7009 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC90677  Holcus mollis Gail Newton 1982-6-1 3568 Humboldt Elk River Wildlife Area, Eureka. Comment
  CAS-BOT-BC149905  Holodiscus discolor Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC71582  Holodiscus discolor Gail Newton 1980-6-16 189 Humboldt Near Onion Mtn. 1280 Comment
  SEINET200842 Image available Hordeum brachyantherum Joseph Tracy, Roland von Bothmer; 1980 1933-6-6 12508 Humboldt unspecified 9 Comment
  UCD85879  Hordeum marinum subsp. gussoneanum A. H. Murphy 1951-5-21 s.n. Humboldt Tooby and Prior Ranch, Blocksburg. Experimental grazing pasture, 2 miles S of Blocksburg. Comment
  HSC103010  Hordeum murinum subsp. murinum J. P. Smith 2014-5-20 13852 Humboldt Samoa Peninsula 6 Comment
  HSC104096  Hordeum vulgare Kyle Brown 2015-4-25 44 Humboldt Arcata; along Bayside Rd. 9 Comment
  HSC69766  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, Jane P. Nelson 1977-9-3 3732 Humboldt Along old logging rd. just E of Pine Mtn. 1433 Comment
  CDA38356  Hydrocotyle ranunculoides W. F. Cruickshank 1961-5-27 s.n. Humboldt Arcata, Weyerhauser Lumber Co. 0 Comment
  RSA298345  Hydrophyllum fendleri var. albifrons J. O. Sawyer, M. A. Ericksen 1979-6-23 3395 Humboldt Slopes below Mill Creek Lakes. 1585 Comment
  HSC57677  Hydrophyllum occidentale G. L. Clifton, Griswold 1979-7-25 10877 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC668262  Hypericum anagalloides Joseph P. Tracy 1936-6-28 15029 Humboldt Lake Prairie at Bald Mt. 1066 Comment
  CAS-BOT-BC401234  Hypericum perforatum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  CAS-BOT-BC401237  Hypericum perforatum Ira L. Wiggins 1930-7-22 4687 b Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  SD93061  Hypericum perforatum W. Bertsch 1953-7-30 225 Humboldt Highway 101 at Dyerville. 60 Comment
  UC1198408  Hypericum perforatum Joseph P. Tracy 1914-5-14 4449 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UC668257  Hypericum perforatum Joseph P. Tracy 1935-7-27 14274 Humboldt along trail Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC127571  Hypochaeris radicata Harley P. Chandler May 1901 1126 Humboldt Arcata North Coast Ranges, Humboldt Bay 30 Comment
  UC1173717 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
Read comments
Feb 27 2012
  UC1103805  Ionopsidium acaule Joseph P. Tracy 1933-3-12 10919 Humboldt Ferndale, St. Mary's Cemetery Ferndale; North Coast Ranges, , St. Mary's Cemetery 15 Comment
  HSC102642  Ipomopsis aggregata subsp. aggregata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 964 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  UC1196394  Iris douglasiana Joseph P. Tracy 1934-8-31 13644 Humboldt Kneeland Prairie 762 Comment
  HSC74237  Iris purdyi M. A. Baker 1980-7-11 2796 Humboldt Near Red Mtn. 1341 Comment
  JEPS88845  Iris purdyi Carol A. Wilson 1992-4-26 92 -ph7 Humboldt se of Fortuna (at Bridgeville, where Hwy 36 crosses the bridge); Bridgeville 259 Comment
  RSA135936  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-11 17192 Humboldt 3.2 miles northeast from Harris on road from Zenia and Alder-point to Garberville Comment
  SEINET3876005  Iris purdyi Thomas Nelson, Jane P. Nelson; James Nelson 1975-6-14 1907 Humboldt At end of road to Pine Mountain.; 0 Comment
  HSC45313  Iris tenax subsp. klamathensis R. York 1978-5-11 163 Humboldt Along logging road off Bark Shanty Rd. above Orleans 610 Comment
  UC632469  Iris tenax subsp. klamathensis E. W. Gifford Jul 1939 Humboldt Orleans Comment
  HSC101964  Iris tenuissima M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 859 Humboldt Patterson Meadows 1566 Comment
  HSC96228  Iris tenuissima subsp. tenuissima Sara March, Gillian Levy 2005-6-10 7 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  UC667941  Isoetes howellii Joseph P. Tracy 1935-5-25 13841 Humboldt Fort Seward 106 Comment
  UC667944  Isoetes howellii Joseph P. Tracy 1935-5-25 13842 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC112455  Isolepis cernua Joseph Prince Tracy 1938-6-16 15942 Humboldt Wet slopes within reach of ocean spray, Trinidad. 3 Comment
  UC1196176  Isopyrum stipitatum Joseph P. Tracy 1922-5-29 6068 Humboldt valley at head of South Yager Creek; Northern Coast Ranges, head of South Yager Creek 762 Comment
  HSC87619  Ixia maculata Jana Kattenhorn 1971-5-26 258 Humboldt HSU campus Comment
  CAS-BOT-BC101964  Juglans hindsii J. W. Blankinship 1928-7-12 s.n. Humboldt Clear Lake woods, Mouth of Kelsey Cr. Comment
  HSC23673  Juncus bolanderi Tim Baroni 1971-6-25 56 Humboldt Comment
  UC1601711  Juncus bolanderi State Survey June 1867 6584 Humboldt Comment
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Jul 31 2010
  UC1152112  Juncus bufonius Joseph P. Tracy 1927-6-19 8197 Humboldt Big Lagoon Comment
  UC14896  Juncus bufonius J. P. Tracy 1900-8-5 913 Humboldt immediate vicinity Eureka 0 Comment
  HSC13995  Juncus bufonius D. E. Anderson 1961-9-9 1786 Humboldt Along Hwy. 101 Comment
  UC1152113  Juncus capitatus Joseph P. Tracy 1948-6-13 18045 Humboldt at the former Will Perry Place Dobbyn Creek 152 Comment
  UC302161  Juncus covillei var. obtusatus Joseph P. Tracy 1926-7-5 7725 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UCD141493  Juncus effusus K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 609 Comment
  CHSC102918  Juncus effusus subsp. pacificus Peter F. Zika 2007-7-30 23328 Humboldt North Coast. Above E side of Route 101, at high point between Stone and Big Lagoons. 80 Comment
  UC1152092  Juncus ensifolius Joseph P. Tracy 1937-8-12 15643 Humboldt Snow Camp Comment
  UC249814  Juncus ensifolius Joseph P. Tracy 1924-7-4 6703 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  UC1152093  Juncus ensifolius Joseph P. Tracy 1937-8-12 15625 Humboldt 3 mi s Murphy Meadow; Bald Mountain, Lake Prairie 1066 Comment
  HSC99545  Juncus exiguus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 210 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC39048  Juncus falcatus Linda M. Barker 1976-6-22 1623 Humboldt 3 mi. W of Arcata Comment
  UC1133658  Juncus falcatus subsp. sitchensis H. S. Yates 1936-6-16 5654 Humboldt 0.5 mi sw Samoa; Eureka Quad. 3 Comment
  UC421740  Juncus hesperius Henry Melde 1902-2-8 Humboldt Eureka Comment
  HSC14029  Juncus lescurii C. B. Wolf 1927-8-29 1205 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  UC1103046  Juncus phaeocephalus Joseph P. Tracy 1921-7-10 5854 Humboldt Big Lagoon Northern Coast Region 6 Comment
  JEPS57409  Keckiella corymbosa L. R. Heckard with T. I. Chuang 1968-7-5 Humboldt e of Garberville (along Mail Ridge Road, 4 1/2 mi n of its junction w Harris Road); Mail Ridge Road Comment
  RSA120310A  Keckiella corymbosa S. S. Tillett 1956-7-6 605 Humboldt E facing slope above Klamath River, along Ishi Rish Road, 1 mi. n. of Orleans. 168 Comment
  HSC36460  Keckiella lemmonii Thomas W. Nelson, B. Reinhardt 1975-7-30 2108 Humboldt Beside Rd. out Whiting Ridge Comment
  POM208967  Keckiella lemmonii Lincoln Constance 1934-6-27 937 Humboldt Eel River, above its junction with S Fork, 0.5 mile from South Fork R.R. Sta. 46 Comment
  UC1245365  Keckiella lemmonii Joseph T. Gregory 1929-8-4 24 Humboldt on road from Petrolia to Dyerville (Windy Nip Gap); Windy Nip Gap Comment
  HSC70569  Kelloggia galioides M. A. Baker 1980-7-23 3164 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS12479  Kelloggia galioides Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16662 Humboldt Friday Ridge; Grouse Mt. 1280 Comment
  UC1103696  Koeleria macrantha Joseph P. Tracy 1934-6-19 13233 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC50518  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5771 Humboldt Trinity Summit Comment
  JEPS52301  Kopsiopsis strobilacea Mr. and Mrs. Charles Young 1967-5-15 Humboldt Near Orleans. Comment
  UC1196121  Kopsiopsis strobilacea Joseph P. Tracy 1918-5-28 4936 Humboldt Northern Coast Ranges. High Prairie on Bald Mountain, High Prairie and Redwood Creek. Comment
  HSC58117  Kyhosia bolanderi G. L. Clifton, Griswold 1979-8-1 12079 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC581803  Lagophylla ramosissima Joseph P. Tracy 1934-7-9 13354 Humboldt Dobbyn Creek 152 Comment
  UC169331  Lagophylla ramosissima Joseph P. Tracy 1912-8-3 3965 Humboldt opposite Buck Mountain (in field); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UCSB45118  Lamium amplexicaule Council, Michael 1978-3-11 Humboldt Southwest corner of Cathedral Oaks and Los Caneros 10 Comment
  RSA170204  Lapsana communis Joseph P. Tracy 1944-7-3 17482 Humboldt Graham's Peach Orchard. Trinity River Valley at Willow Creek. 152 Comment
  UC1199127  Lasthenia californica subsp. californica Joseph P. Tracy 1918-5-5 4924 Humboldt at Humboldt Bay Northern Coast Ranges, Humboldt Bay Comment
  CAS-BOT-BC94770  Lathyrus angulatus R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 829 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  JEPS98949  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 Humboldt Red Mountain (type locality) Comment
  JEPS55332  Lathyrus brownii W. L. Jepson 1932-7-30 16455 Humboldt bank of Bull Creek Bull Creek 106 Comment
  UC302109  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1926-5-2 7432 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC49084  Lathyrus latifolius Patricia Shesgreen 1978-8-5 130 Humboldt Spring St. between 16th and 17th Sts., Arcata. Comment
  HSC89295  Lathyrus latifolius K. Grenier 1989-10-6 367 Humboldt Arcata, E of Alliance Rd. .2 mi. S of junction of Alliance and Stromberg Rds. Comment
  HSC14739  Lathyrus littoralis H. E. Parks 1930-5-24 798 Humboldt Little River Lagoon 0 Comment
  RSA183499  Lathyrus littoralis J. R. Woodside 1963-4-3 31 Humboldt One and one fourth miles north of Fairhaven. Comment
  POM214877  Lathyrus littoralis Joseph P. Tracy 1929-7-4 8641 Humboldt Sand dunes near Samoa, on Humboldt Bay. Comment
  SFV18497  Lathyrus littoralis E. Cohen Apr 2002 22 Humboldt Comment
  HSC102562  Lathyrus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1549 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC95147  Lathyrus palustris Gordon Leppig 2003-7-18 2008 Humboldt Eureka, Marsh N of Elk River Slough 2 Comment
  JEPS55333  Lathyrus palustris Joseph P. Tracy 1907-7-20 2593 Humboldt near Samoa (Region about Humboldt Bay, Northern Coast Region); Northern Coast Region 0 Comment
  HSC64183  Lathyrus polyphyllus J. O. Sawyer, M. A. Erickson 1979-6-23 3392 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC1222409  Lathyrus polyphyllus Joseph P. Tracy 1948-8-15 18118 Humboldt 1 1/2 miles north of Forest Service Public Camp on Trinity Summit Road. Happy Camp Mountain (In Trinity Summit Range, 6 miles northeast of Hawkins Bar.) Comment
  UC1222407  Lathyrus polyphyllus Joseph P. Tracy 1946-6-15 17570 Humboldt near Green Point (w of Redwood Creek on Trinity Highway) 457 Comment
  BLMAR670  Lathyrus torreyi Jennifer Wheeler 2013-6-3 670 Humboldt Lacks Creek, West side near broom at end of road 701 Comment
  SEINET12154019  Lathyrus torreyi J. P. Tracy 1943-1 17430 Humboldt Willow Creek Canyon, along Trinity Hwy. East Fork of Willow Creek Comment
  UC931759  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-8 19092 Humboldt 4 mi w Willow Creek town (near Willow Creek National Forest Camp) Comment
  HSC89532  Layia carnosa C. K. Meyers 1990-6-13 Humboldt South Spit, west side of Humboldt Bay, on bay side of road 3 Comment
  UC1223217  Layia carnosa Joseph P. Tracy 1946-6-2 17555 Humboldt Fairhaven; Samoa Peninsula Comment
  UC34740  Layia carnosa W. C. Blasdale 1896-6-2 Humboldt Comment
  CAS-BOT-BC321697  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  UC1223219  Layia gaillardioides Joseph P. Tracy 1950-6-8 187860 Humboldt Petrolia Comment
  UC1409177  Ledum glandulosum Robert F. Thorne and P. Everett 1965-8-9 35295 Humboldt Big Lagoon 3 Comment
  UC32706  Ledum glandulosum W. C. Blasdale 1896-6-2 Humboldt West Eureka Comment
  RSA249507  Ledum glandulosum subsp. columbianum R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35295 Humboldt Big Lagoon. 3 Comment
  HSC39835  Leontodon saxatilis subsp. saxatilis Peter Sorensen 1976-7-11 Humboldt Woodley Island; Humboldt Bay Comment
  CAS-BOT-BC89074  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 0.25 mile west of its junction with Arcata, in Bayside. 15 Comment
  CAS-BOT-BC89165  Lepidium draba Joseph P. Tracy 1933-5-19 12201 Humboldt Eel River. Alton to Fortuna. 15 Comment
  UC1116215  Lepidium nitidum Joseph P. Tracy 1948-5-31 17990 Humboldt Harris 762 Comment
  UC201614  Lepidium nitidum Joseph P. Tracy 1918-5-5 4927 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC6836  Lepidium perfoliatum Anonymous 1957-5-12 150 Humboldt 1 mi. S of Fields Landing Comment
  HSC45057  Leptosiphon androsaceus R. Sutherland 1978-4-24 9 .24478 Humboldt 323 Comment
  HSC35037  Leptosiphon bicolor Thomas W. Nelson, James Nelson 1975-5-24 1871 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC535713  Leptosiphon latisectus Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC334613  Leucanthemum vulgare Doris K. Kildale 1927-6-27 3603 Humboldt Scotia 30 Comment
  HSC95585  Leucanthemum vulgare Andrea Pickart 2002-7-8 159 Humboldt N Spit Dunes, Mad River Co. Park, near parking area. 0 Comment
  CAS-BOT-BC334619  Leucanthemum vulgare L. R. Abrams; R. Bacigalupi 1922-6-25 8262 Humboldt Between Trinidad and Big Lagoon Comment
  HSC97992  Leucanthemum vulgare Cara Witte 2007-7-9 462 Humboldt Along Forest Service Road 4N32. 1/4 mile west of intersection with 5N04 1508 Comment
  HSC98681  Lewisia nevadensis Cara Witte 2008-7-11 879 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  CAS-BOT-BC436494  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt North Yager Creek, at crossing of Kneeland to Bridgeville road Comment
  JEPS14228  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt at crossing of Kneeland to Bridgeville rd. North Yager Creek 396 Comment
  JEPS17506  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. Redwook Creek Comment
  HSC102534  Ligusticum grayi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1520 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC21520  Lilaeopsis occidentalis R. W. Spjut 1968-10-26 215 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  UCD127580  Lilaeopsis occidentalis Malcolm A. Nobs; S. Galen Smith 1949-8-3 1166 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  HSC95380  Lilaeopsis occidentalis Andrea Pickart 2002-7-9 170 Humboldt Bracut Marsh at freshwater outlet into salt marsh 10 Comment
  HSC63175  Lilium bolanderi M. A. Baker 1979-7-10 1021 Humboldt Comment
  HSC65927  Lilium bolanderi Gail Newton 1980-6-17 223 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC508406  Lilium columbianum A. M. Vollmer; L. Beane 1953-7-1 121 Humboldt Unspecified Comment
  HSC45837  Lilium columbianum Clifton Raymond Chesbrough 1971-7-22 75 Humboldt 1.0 mi. S of Eureka golf course Comment
  RSA259542  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2032 Humboldt Bald Hills Road just east of Redwood National Park Comment
  RSA46685  Lilium columbianum Doris K. Kildale 1937-7-18 15138 -a Humboldt Horse Mt. Comment
  UCSB24780  Lilium columbianum Keefe, Joseph 1967-7-8 Humboldt 20 miles north of Eureka 1 Comment
  HSC58337  Lilium kelleyanum Overton, Butler 1979-8-2 12646 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76434  Lilium kelleyanum Teresa Prendusi 1981-7-24 468 Humboldt Near Whiteys Peak 1585 Comment
  HSC15572  Lilium kelloggii S. V. Thompson 1967-7-23 9 Humboldt E of Freshwater Park Comment
  RSA74745  Lilium kelloggii Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On trail to Blohns cabin, Bald Mountain, east of Korbel Comment
  UC302156  Lilium kelloggii Joseph P. Tracy 1926-6-13 7593 Humboldt Liscom HIll; Northern Coast Ranges 457 Comment
  CAS-BOT-BC130688  Lilium occidentale A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt Table Bluff, near Eureka Comment
  SEINET3992036  Lilium occidentale Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-1 Humboldt Comment
  SEINET4063663  Lilium occidentale O. M. Clark 1932-1 Humboldt Comment
  UC666959  Lilium occidentale Joseph P. Tracy 1927-9-25 8377 Humboldt 2 mi s Field's Landing (at Still's Ranch) 6 Comment
  JEPS563  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UCD139748  Lilium pardalinum H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad on Redwood Highway. Comment
  CAS-BOT-BC132960  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-1 147 Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  UC1198250  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1913-7-20 4366 Humboldt ridge between Redwood Creek and Willow Creek (on Willow Creek road); Northern Coast Ranges 914 Comment
  UC176376  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1913-7-20 4366 Humboldt ridge between Redwood Creek and Willow Creek (on Willow Creek road); Northern Coast Ranges 914 Comment
  HSC100568  Limnanthes douglasii Carl C. Marshall Jun 1887 68 Humboldt Damp soils throughout Humboldt. Comment
  JEPS19599  Limnanthes douglasii W. L. Jepson 1902-6 1941 Humboldt Redwood Creek Comment
  UC1197414  Limnanthes douglasii Joseph P. Tracy 1927-6-5 8106 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  HSC83038  Limonium californicum A. L. Eicher 1985-6-19 Humboldt Humboldt Bay, 0.3 mi. S of the junction of Samoa Blvd. and Vance Ave. 1 Comment
  HSC90756  Limonium californicum Gail Newton 1983-8-21 3853 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC908948  Linanthus androsaceus Joseph P. Tracy 1927-5-8 7975 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC908983  Linanthus latisectus Milo S. Baker 1931-5-17 5186 Humboldt 4.2 mi s Garberville (on highway) Comment
  UC179969  Linnaea borealis var. longiflora Joseph P. Tracy 1914-7-5 4571 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  SDSU8125  Linum bienne D. F. Howe 1961-8-1 Humboldt 9 miles north of Arcata on #101. Comment
  HSC75160  Listera caurina James Lenihan 1982-5-30 Humboldt Redwood National Park. Little Lost Man Creek drainage 2/3 of way up to where creek forks 457 Comment
  HSC63078  Listera cordata var. nephrophylla David Wheeler 1979-4-23 82 Humboldt Camp Bauer, Korbel, just past the entrance gate, on the left Comment
  HSC73409  Listera cordata var. nephrophylla Bruce Potter, Leslie Sieburth, Susan Ahrens 1981-4-19 653 Humboldt 229 Comment
  RSA476670  Lithocarpus densiflorus var. densiflorus Thekla Mohr s.n. Humboldt Eel River. Humboldt and Mendocino Cos. Comment
  CAS-BOT-BC430610  Lithophragma affine Mark Bransom; Daniel Brown; Ron Hildebrant; Nina Meiselman 1986-4-19 18 Humboldt 1 1/2 mi. west of Burnt Ranch on Rt. 299 down dirt road leading from open meadow above Burnt Ranch campground Comment
  UC50505  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6212 Humboldt Russ Ranch; North-Western California Comment
  RSA728076  Lolium perenne Gary D. Wallace 1979-6-24 1860 Humboldt Near Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  SEINET200586 Image available Lolium perenne J. P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  UC249793  Lolium perenne Joseph P. Tracy 1923-8-25 6539 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  POM313209  Lolium perenne subsp. multiflorum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1177 Humboldt Around Field's Landing. Comment
  CAS-BOT-BC271058  Lolium temulentum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC33879  Lolium temulentum Chesnut and Drew 1888-7-13 Humboldt Campbell's Comment
  UC50694  Lolium temulentum Joseph Burtt Davy 1899-6-20 5690 Humboldt Hupa Valley Comment
  UC50698  Lolium temulentum Joseph Burtt Davy 1899-6-20 5690 Humboldt Hupa Valley Comment
  RSA254739  Lomatium californicum Thomas W. Nelson, James Nelson 1973-5-28 954 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC21575  Lomatium dasycarpum subsp. dasycarpum Francis Winter 1960-4-24 Humboldt 1 mi. W of Burnt Ranch 381 Comment
  UC314597  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1923-6-27 6380 Humboldt near the South Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  JEPS16237  Lomatium dissectum var. dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt lower foothhills of Buck Mt. (on its n.w. slope); Northern Coast Ranges, Buck Mt. 762 Comment
  UC642327  Lomatium dissectum var. dissectum Joseph P. Tracy 1928-6-24 8460 Humboldt Valley of S. Yager Creek 762 Comment
  SEINET13944712 Image available Lomatium howellii William A. Weber 1965-1 12295 Humboldt hills 5 mi E of Bridgeville; 2100 ft alt 640 Comment
  HSC37192  Lomatium macrocarpum Barbara Kelly 1976-5-13 253 Humboldt Below road at Kneeland Airport Comment
  UC673273  Lomatium macrocarpum Lincoln Constance and Reed C. Rollins 1942-5-12 2882 Humboldt 5 mi. n.e. Weitchpec (Klamath R. 1 mi. s. of Bluff Creek); Klamath-Siskiyou Region, Klamath R. 121 Comment
  HSC47949  Lomatium tracyi Brad Klipfel 1974-5-8 326 Humboldt Horse Mountain Comment
  UC154087  Lomatium utriculatum Joseph P. Tracy 1908-6-8 2626 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  BLMAR649  Lomatium vaginatum Jennifer Wheeler 2012-5-9 649 Humboldt Lacks Creek, Beaver Ridge Road 865 Comment
  UC1239548  Lonicera conjugialis Joseph P. Tracy 1932-7-12 10481 Humboldt head Brett Hole; Trinity Summit 1828 Comment
  HSC81931  Lonicera hispidula var. vacillans Thomas W. Nelson, Jane P. Nelson 1979-7-3 4962 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  SEINET11168851 Image available Lonicera involucrata Unknown 1974-8-11 Humboldt Trinidad Comment
  HSC31546  Lonicera involucrata var. ledebourii Steve Selva, Roger Jensen 1974-8-21 28 Humboldt Along Hwy. 101 at Patrick's Point State Park. Comment
  HSC3930  Lonicera involucrata var. ledebourii R. A. Rasp 1964-5-7 37 Humboldt 2 mi. S of Korbel on Simpson Lumber Co. land. Comment
  HSC45276  Lonicera involucrata var. ledebourii Brad Klipfel 1974-4-27 312 Humboldt SW side of Big Lagoon. Comment
  JEPS13670  Lonicera involucrata var. ledebourii W. L. Jepson with J. P. Tracy 1921-8-11 9408 Humboldt Big Lagoon Comment
  RSA21019  Lonicera involucrata var. ledebourii C. B. Wolf 1937-9-12 9327 Humboldt Dry Lagoon State Park; base of coastal cliffs. 5 Comment
  SEINET12158899  Lotus denticulatus J. P. Tracy 1934-1 13219 Humboldt Horse Mountain 1433 Comment
  HSC98249  Lotus formosissimus H. E. Parks, S. T. Parks Jun 1952 24449 Humboldt Spruce Cove, Trinidad 61 Comment
  JEPS55512  Lotus humistratus Lincoln Constance 1934-5-23 623 Humboldt upper end of Look Prairie South Fork Eel River, Bull Creek Region, Look Prairie 365 Comment
  UC1223430  Lotus micranthus Joseph P. Tracy 1936-5-30 14839 Humboldt Samoa Sand Dunes Comment
  UC302114  Lotus oblongifolius Joseph P. Tracy 1926-6-20 7629 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  UC33561  Lotus oblongifolius var. oblongifolius Chesnut and Drew Aug 1888 Humboldt mouth of Grouse Creek Grouse Creek Comment
  UC168986  Lotus purshianus var. purshianus Joseph P. Tracy 1912-7-4 3731 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC98270  Lotus unifoliolatus var. unifoliolatus Lincoln Constance 1934-5-26 669 Humboldt South Fork Eel River, S end of Dyerville Bridge. 46 Comment
  SEINET3523647 Image available Lotus yollabolliensis Joseph P. Tracy 1937-7-29 15586 Humboldt South Fork Mountain, near McKay camp 1676 Comment
  CAS-BOT-BC198268  Lupinus Wm. Bridge Cooke 1946-6-11 17370 Humboldt Roadside 1 mi. N of Eureka Comment
  RSA167393  Lupinus albicaulis var. shastensis Joseph P. Tracy 1940-7-14 16687 Humboldt Wilder Ridge Comment
  UC503004  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-6-14 10161 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC58413  Lupinus andersonii Griswold, Butler 1979-7-12 7173 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC14776  Lupinus arboreus S. J. Hawks 1965-5-18 84 Humboldt W of Arcata Airport. Comment
  UC1223266  Lupinus arboreus Joseph P. Tracy 1947-7-3 17763 Humboldt mouth of Little River Comment
  UCD106590  Lupinus arboreus Linda M. Barker 1976-5-13 1474 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC71467  Lupinus bicolor J. P. Smith, J. O. Sawyer 1973-5-12 6680 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  UC156990  Lupinus bicolor Joseph P. Tracy 1900-6-5 838 Humboldt Bucksport Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  JEPS82235  Lupinus lapidicola Roger Raiche 1983-7-19 30538 Humboldt King Range, Saddle Mountain, King Ridge Trail Rd. Saddle Mountain; King Range, , King Ridge Trail Rd. 853 Comment
  HSC14833  Lupinus latifolius R. Spellenberg 1964-6-15 415 Humboldt 7 mi. E of Redwood Creek, Hwy. 299. Comment
  HSC14854  Lupinus latifolius subsp. latifolius R. Spellenberg 1965-6-14 1132 Humboldt 6 mi. E of Freshwater on Rd. to Kneeland Comment
  UC169334  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-7-26 3863 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  BLMAR212  Lupinus microcarpus var. densiflorus Jennifer Anthony-Wheeler 1996-7-9 212 Humboldt Pilot ridge., open or distrubed areas 1280 Comment
  HSC102029  Lupinus polyphyllus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 931 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC170031  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1912-7-21 3784 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC176608  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1913-6-25 4335 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in the valley of the Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SBBG13907  Lupinus rivularis H. and M. Dearing 1939-6-23 3694 Humboldt 12 mi E of Arcata Comment
  UC198578  Lupinus rivularis Joseph P. Tracy 1917-5-26 4785 Humboldt at Eureka (on bluff at Bucksport); Northern Coast Ranges 0 Comment
  RSA414240  Lupinus sellulus subsp. ursinus Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-7-4 3583 Humboldt Along west side of road north from Alder Springs. 1524 Comment
  HSC59452  Lupinus tracyi Richard Runyon 1979-6-27 42 Humboldt Along trail to Trinity Summit Station, 50' S of intersection of Grogan hole-Devils backbone trail 1768 Comment
  UCR40070  Lupinus tracyi Robert Runyon 1979-6-27 s.n. Humboldt Six Rivers National Forest, Along a ridge near (NE of) Trinity Summit Station, Trinity Co. line 1829 Comment
  UC1152142  Luzula cascadensis Joseph P. Tracy 1930-7-17 8972 Humboldt Near McKay Camp, South Fork Mountain 1676 Comment
  HSC71599  Luzula comosa M. A. Baker 1980-6-26 2412 Humboldt Near Sims Creek 610 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
  UC1152143  Luzula comosa Joseph P. Tracy 1951-6-26 19550 Humboldt at Snow Camp; in fir woods at Snow Camp Comment
  UC429121  Luzula comosa var. laxa Joseph Burtt Davy 1899-6-11 5469 Humboldt Elk Prairie Comment
  RSA54022  Luzula parviflora E. K. Balls, Lee W. Lenz 1956-6-12 21662 Humboldt 4.4 miles SW from Willow Creek along U. S. Highway 299 to Arcata. 366 Comment
  UC183767  Luzula subsessilis Joseph P. Tracy 1914-5-14 4443 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UCR263353  Luzula subsessilis Peter F. Zika 2011-7-3 25492 Humboldt Outer North Coast Ranges (NCoRo), Titlow Hill Road, 3.0 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain 1310 Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  UC1239797  Lycopodiella inundata Joseph P. Tracy 1938-7-6 16022 Humboldt Big Lagoon 6 Comment
  UC249774  Lycopodiella inundata Joseph P. Tracy with H. E. Parks 1924-8-3 6769 Humboldt sphagnum bog at sw corner Big Lagoon; Northern Coast Region 6 Comment
  JEPS63277  Lycopus americanus Joseph P. Tracy 1924-8-31 6853 Humboldt Klamath R. at mouth of Bluff Creek; Klamath R. 91 Comment
  UC577388  Lycopus americanus Joseph P. Tracy 1934-8-31 6853 Humboldt Klamath R. at mouth of Bluff Creek; Klamath R. 91 Comment
  CHSC2104  Lysichiton americanus M. Anthony 1960-5-14 Humboldt N. coastal. Comment
  HSC99631  Lysichiton americanus Gordon Leppig 1998-3-25 728 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC34916  Lysichiton americanus W. C. Blasdale 1896-6-4 Humboldt Eureka Comment
  JEPS42815  Lysichiton americanus Lincoln Constance 1934-6-18 894 Humboldt near South Fork Rail Road Station and Post Office (border of North Dyerville Flat, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  RSA239701  Lysichiton americanus Larry E. DeBuhr 1973-4-23 1000 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  HSC43203  Lythrum hyssopifolia R. Sutherland 1976-8-13 17 .13876 Humboldt Gravel bar in Redwood Creek in Redwood grove. 87 Comment
  RSA0015872  Lythrum hyssopifolia Joseph P. Tracy 1927-8-7 8321 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  CAS-BOT-BC342797  Madia elegans Doris K. Kildale 1928-7-24 5283 Humboldt Horse Mountain 914 Comment
  CAS-BOT-BC343026  Madia gracilis Doris K. Kildale 1928-6-24 7076 Humboldt Redwood Creek at Berry's 289 Comment
  UC166273  Madia gracilis Joseph P. Tracy 1901-7-31 1236 Humboldt near Hydesville 60 Comment
  UC495631  Madia gracilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8957 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC96938  Madia gracilis Whitney Meier, Elizabeth Kimbrough 2007-6-11 6 Humboldt Cold Springs Camp, 14.1 mi S of Hwy. 299 on NF1 Comment
  RSA254781  Madia madioides Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch north of Dinsmore. Comment
  CAS-BOT-BC343588  Madia sativa Joseph P. Tracy 1927-6-18 8176 Humboldt Northern Coast Ranges. Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 30 Comment
  HSC5990  Madia sativa W. D. Stevens 1967-7-22 63 Humboldt Above the dirt road from old Hwy. 101 to the top of N bank of Mad River Comment
  HSC15590  Maianthemum dilatatum J. F. Knezevich 1968-5-23 458 Humboldt N of Trinidad at Big Lagoon 0 Comment
  HSC31344  Maianthemum dilatatum Larry E. DeBuhr, G. D. Wallace 1972-5-22 606 Humboldt 25 mi. N of Arcata at the S end of Big Lagoon Comment
  HSC22509  Maianthemum dilatatum Joel W. Reinhard 1966-4-30 28 Humboldt Two beaches N of College Cove Comment
  UC1028306  Maianthemum dilatatum George B. Rossbach 1955-6-8 223 Humboldt n. portion Prairie Creek Redwoods State Park, Rte. 101 Prairie Creek Redwoods State Park, Rte. 101 Comment
  HSC41355  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1974-8-2 507 Humboldt Horse Mtn. Comment
  HSC98721  Maianthemum racemosum subsp. amplexicaule Cara Witte 2008-7-11 874 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC40874  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson 1976-7-9 3005 Humboldt S of Mt. lassic 1707 Comment
  RSA309620  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1983-9-3 3932 Humboldt 3,2 mi W of Klamath River bridge W of Weitchpec, along road to Orick. Comment
  HSC34159  Maianthemum stellatum Linda M. Barker 1974-5-11 177 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC56979  Maianthemum stellatum Overton, Butler 1979-7-23 9516 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  CAS-BOT-BC140139  Malus fusca Rattan 1878-6-6 s.n. Humboldt Arcata Comment
  CAS-BOT-BC140140  Malus fusca Doris K. Kildale 1928-9-10 6715 Humboldt Big Lagoon - south end of Comment
  HSC18696  Malus fusca W. R. Brigham 1962-5-19 10 Humboldt S of Big Lagoon. Comment
  HSC65125  Marah oregana J. P. Smith 1971-10-6 4968 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC7029  Marah oregana D. A. Shally 1965-5-15 46 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC91615  Marah oregana E. Mackey 1987-5-7 Humboldt Patrick's Point State Park, Palmer's Point, at beginning of trail to beach. Comment
  UC1198477  Marah oregana Joseph P. Tracy 1940-5-17 16548 Humboldt McClellan Mt. 762 Comment
  UC505102  Marah oregana Joseph P. Tracy 1929-5-19 8598 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC577418  Marrubium vulgare Joseph P. Tracy 1925-5-17 6973 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley near South Fork 182 Comment
  HSC31809  Medicago lupulina Donald Spalinger 1974-4-25 23 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  CDA18210  Medicago polymorpha G. D. Barbe, T. C. Fuller 1974-6-17 1838 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  HSC47496  Medicago polymorpha Sheila Logan 1978-4-9 20 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  CAS-BOT-BC271172  Melica aristata Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  UC526915  Melica bulbosa Joseph P. Tracy 1932-7-12 10445 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  RSA123518  Melica geyeri H. S. Yates 1936-6-17 5693 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  CAS-BOT-BC281324  Melica harfordii Doris K. Kildale 1928-6-24 5287 Humboldt Horse Mountain 914 Comment
  CAS-BOT-BC281327  Melica harfordii Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  HSC64160  Melica harfordii J. O. Sawyer, K. A. Sawyer 1979-6-24 3401 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC1132278  Melica harfordii H. L. Person 1932-5-11 Humboldt near Arcata 0 Comment
  UCD87504  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Garberville. Comment
  SEINET200110 Image available Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Trinity Summit head of Brett Hole 1830 Comment
  CAS-BOT-BC264164  Melica subulata Joseph P. Tracy 1933-7-26 12910 Humboldt Grouse Mountain 1524 Comment
  UCD88599  Melica subulata A. A. Beetle; G. L. Stebbins Jr. with J. P. Tracy 1942-6-2 3475 Humboldt 4 miles north of Bridgeville. Comment
  HSC10331  Melica subulata DWC 1956-4-27 Humboldt Mattole area. Comment
  POM174071  Mentha canadensis Joseph P. Tracy 1918-9-29 5105 Humboldt South Fork of Eeel River 4 miles above the mouth. Comment
  UC1225833  Mentha canadensis Joseph P. Tracy 1941-8-17 16993 Humboldt borders of pond near Three Cabins (se of Butler Valley); se of Butler Valley 457 Comment
  HSC12565  Mentha pulegium D. La Conte 1970-7-7 1 Humboldt Comment
  UC577383  Mentha pulegium Joseph P. Tracy 1933-8-22 12985 Humboldt near Loleta; near Loleta 6 Comment
  HSC12719  Mentha pulegium C. E. Fellows 1970-10-31 377 Humboldt Rio Dell, bank of Eel River, 1/2 mi. E of bridge on N side of town Comment
  UC1239689  Mentha spicata Joseph P. Tracy 1933-10-22 13104 Humboldt Trinity River Valley opposite mouth of Willow Creek Lack Pond; Northern Coast Ranges, Trinity River Valley oppos Willow Cre 152 Comment
  HSC38431  Mentzelia laevicaulis J. P. Smith 1976-10-30 8996 Humboldt Mad River, E of Essex Lane exit. Comment
  CHSC93621  Microseris borealis K. L. Chambers 1957-8-31 1225 Humboldt Lake Prairie, on road from Bald Mt. to Snow Camp, ca. 9 mi. S of Ranger Station. In bog, SE end of the lake. Comment
  CAS-BOT-BC348948  Microseris douglasii subsp. douglasii Joseph P. Tracy 1929-5-5 8560 Humboldt Miranda. Along South Fork of Eel River 121 Comment
  UC1223198  Microseris douglasii subsp. douglasii Joseph P. Tracy 1950-7-6 19001 Humboldt 2 mi s Burr Valley (on the Albee Road) 1158 Comment
  CAS-BOT-BC349240  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  HSC58383  Microseris nutans Terry Griswold 1979-7-25 10913 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  UC1199449  Microseris nutans Joseph P. Tracy 1932-7-12 10485 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  SEINET200379  Microsteris gracilis J. P. Tracy 1930-5-4 8692 Humboldt Larrabee Valley 701 Comment
  UC582707  Mimulus arvensis Joseph P. Tracy 1936-5-2 7435 Humboldt near South Fork; Trinity River Valley 182 Comment
  RSA550828  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-6 1116 Humboldt 0.8 mi s of Hwy 101 interchange access road (to Trinity town) along road to Luffenholtz Beach 50 Comment
  UCSB10373  Mimulus aurantiacus var. aurantiacus Parks, H.; Parks, S. 1951-6-1 Humboldt Along bay shore near landing, Trinidad Comment
  HSC75454  Mimulus breweri J. O. Sawyer 1980-7-18 3591 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1196775  Mimulus cardinalis Joseph P. Tracy 1908-6 2928 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC615326  Mimulus cardinalis Beryl O. Schreiber 1932-7-11 364 Humboldt road s Garberville Comment
  HSC20708  Mimulus dentatus Jack Rockwell 1962-5-5 58 Humboldt W side Jacoby Creek 18 Comment
  UC147914  Mimulus grandis J. P. Tracy 1900-8-5 911 Humboldt immediate vicinity Eureka 0 Comment
  HSC59136  Mimulus guttatus Terry Roth 1979-5-20 61 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  JEPS10474  Mimulus guttatus Lincoln Constance 1934-5-26 683 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  UC1196811  Mimulus kelloggii Joseph P. Tracy 1908-6 2938 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  UC41884  Mimulus kelloggii Chesnut and Drew July 1888 Humboldt Pilot Ridge Comment
  UC41888  Mimulus kelloggii C. C. Marshall 1888-1 Humboldt Comment
  UC673219  Mimulus kelloggii Lincoln Constance, Reed C. Rollins 1942-5-12 2894 Humboldt 1 mi s Somes Bar (bluffs at junction of rivers); Klamath-Siskiyou region, Klamath and Salmon rivers 152 Comment
  HSC55609  Mimulus moschatus Overton, Butler 1979-7-23 9492 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  JEPS13352  Mimulus nanus var. nanus W. K. Parks July, 1933 81423 Humboldt Buck Mt. Comment
  JEPS28973  Mimulus nanus var. nanus Joseph T. Gregory 1933-7-15 438 A Humboldt near MacKay Camp; South Fork Mt. 1737 Comment
  HSC72697  Mimulus pulsiferae Gail Newton 1980-6-24 583 Humboldt Near Ladder Rock 1570 Comment
  UC1196782  Mimulus pulsiferae Joseph P. Tracy 1933-8-30 13029 Humboldt near Clear Lake; North Coast Ranges, Grouse Mountain 1524 Comment
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Sep 10 2013
  UC1196783  Mimulus pulsiferae Joseph P. Tracy 1937-6-27 15383 Humboldt w mouth of S. Fork of Trinity River; Friday Ridge 1219 Comment
  SEINET6904195  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  POM126164  Minuartia cismontana Joseph P. Tracy 1921-5-30 5479 Humboldt Kneeland Prairie. 762 Comment
  RSA21094  Minuartia douglasii C. B. Wolf 1937-6-14 8822 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  CAS-BOT-BC388620  Minuartia douglasii Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. Trail 914 Comment
  CAS-BOT-BC388631  Minuartia douglasii Thomas W. Nelson; James L. Nelson 1980-6-10 5413 Humboldt Six Rivers National Forest. Along Swayback Ridge Road 2.5 miles north of junction with road 1S07 1463 Comment
  CAS-BOT-BC433011  Mitella diversifolia Joseph P. Tracy 1949-6-5 11654 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  RSA273428  Mitella ovalis M. A. Baker 1977-4-23 175 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC98562  Mitella trifida var. trifida Cara Witte 2008-6-18 739 Humboldt Approximately 1.5 miles north-west of Forest Service Rd. 6N01B. On an unmarked road on right hand side. 1433 Comment
  UC1191371  Mollugo verticillata Malcolm A. Nobs, S. Galen Smith 1949-8-11 1339 Humboldt eastern shore of Stone Lagoon; Stone Lagoo Comment
  JEPS109950  Monardella odoratissima subsp. odoratissima Dean W. Taylor 2007-7-12 20164 Humboldt Pig Toe, along the Fruit Ranch road. 762 Comment
  HSC57898  Monardella odoratissima subsp. pallida Overton, Butler 1979-7-31 11478 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  JEPS51853  Monardella odoratissima subsp. pallida Hilda W. Grinnell 1932-7-19 26 Humboldt Near Camp McKay on South Fork Mountain Comment
  UC32590  Monardella odoratissima subsp. pallida Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  HSC34741  Monardella villosa Thomas W. Nelson 1974-7-19 1674 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1239681  Monardella villosa subsp. villosa Joseph P. Tracy 1936-6-27 15005 Humboldt Miranda South Fork Eel River 121 Comment
  SEINET3000074 Image available Montia chamissoi Joseph P. Tracy 1932-7-10 10378 Humboldt Trinity Summit, open places at Corral Prairie Comment
  UC183608  Montia chamissoi Joseph P. Tracy 1913-6-17 4169 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  CAS-BOT-BC444807  Montia diffusa L. R. Abrams 1916-7-11 5993 Humboldt Between Blocksberg and Bridgeville Comment
  UC183598  Montia linearis Joseph P. Tracy 1913-5-4 4067 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC31552  Montia parvifolia Glenn McGourty 1974-5-11 41 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC16100  Morella californica P. Markle 1962-5-24 63 Humboldt Edge of 18th St. in Arcata 30 Comment
  HSC62915  Morella californica J. M. DiTomaso 1979-4-1 835 Humboldt 3 mi. S of Arcata on Samoa Rd. Comment
  HSC90390  Morella californica Jean Hanson 1980-4-12 49 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  CAS-BOT-BC275346  Muhlenbergia mexicana Henry M. Pollard 1956-10-9 s.n. Humboldt Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  UC1239639  Myosotis discolor Joseph P. Tracy 1924-8-3 6748 Humboldt Stone Lagoon Northern Coast Region, Stone Lagoon 6 Comment
  HSC3743  Myosotis discolor J. R. Good 1964-5-15 42 Humboldt Mad River Park. NE of parking lot, 85 yds. towards Mad River Comment
  UC205635  Myriophyllum sibiricum Joseph P. Tracy 1920-8-29 5395 Humboldt In pond near mouth of Little River. Comment
  UCD87901  Nassella lepida A. H. Murphy 1951-5-18 s.n. Humboldt 2.5 mi. northwest of Petrolia on rocky road cut along county road. Petrolia to Ferndale. Comment
  HSC100457  Nasturtium curvisiliqua Carl C. Marshall May 1885 45 Humboldt Peninsula near marsh. Comment
  HSC56334  Navarretia divaricata Overton, Butler 1979-8-2 12710 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC17129  Navarretia divaricata H. E. Parks 1939-6-27 5257 Humboldt Grouse Mtn. Comment
  SEINET200377  Navarretia intertexta Joseph P. Tracy 27 Jun to 30 Jul 1908 2799 Humboldt Valley of Van Duzen River opposite Buck Mountain. 305 Comment
  RSA15549  Navarretia mellita C. B. Wolf 1927-8-30 1250 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  UC1198519  Navarretia tagetina Joseph P. Tracy 1934-7-9 13344 Humboldt Dobbyn Creek Northern Coast Ranges 152 Comment
  JEPS3218  Nemophila heterophylla Joseph P. Tracy 1937-5-17 15292 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1103810  Nemophila heterophylla Joseph P. Tracy 1922-4-30 5987 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  CDA40359  Nemophila menziesii var. atomaria J. Breton and A. Livingston 2005-6-8 6 Humboldt Northwestern California; 1.7 mi. south of Highway 299 on Titlow Hill Rd. Comment
  BLMAR172  Nemophila pedunculata Donald Hazlett 1994-6-7 172 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC176993  Nemophila pedunculata Joseph P. Tracy 1913-5-4 4065 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  SD9810  Nephrolepis duffii May Canfield Unknown Humboldt Carlotta Comment
  JEPS12381  Nicotiana quadrivalvis Joseph P. Tracy 1930-10-19 9223 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  HSC93918  Noccaea fendleri subsp. californica D. K. Imper 1997-4-10 Humboldt Kneeland Prairie, W side of airport 854 Comment
  CAS-BOT-BC60565  Noccaea fendleri subsp. glauca Lincoln Constance; Reed C. Rollins 1942-5-11 2877 Humboldt North Coast Ranges. Hoopa Valley 5 miles south of Hoopa. 121 Comment
  HSC99041  Noccaea montana subsp. montana Cara Witte 2008-7-1 777 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  HSC99062  Notholithocarpus densiflorus var. echinoides Cara Witte 2008-6-18 746 Humboldt Horse Mountain Botanical Area. Approximately 1 mile east of junction 6N36 and 6N36A. 1394 Comment
  SEINET11915945  Oemleria cerasiformis J. P. Tracy 1950-1 18618 Humboldt 2 mi W of Dinsmore's, Buck Mountain, lower foothills of its NW slope 762 Comment
  CDA38484  Oenanthe sarmentosa Tario 1932-9-21 s.n. Humboldt Arcata. 0 Comment
  HSC36313  Oenanthe sarmentosa Gerald Fijii 1972-10-20 Humboldt Big Lagoon Bog Comment
  HSC93518  Oenanthe sarmentosa Gordon Leppig 1998-6-25 848 Humboldt Arcata Marsh and Wildlife Sanctuary, Log pond, SW side 2 Comment
  HSC100581  Oenothera cheiranthifolia Carl C. Marshall May 1885 41 Humboldt Peninsula. Comment
  HSC12413  Oenothera glazioviana D. Santana 1970-11-2 98 Humboldt 1 mi. S of Trinidad Comment
  HSC95443  Oenothera wolfii D. K. Imper 1986-9-1 Humboldt S of Trinidad, Hwy. 101, across from Clam Beach 5 Comment
  HSC103084  Orobanche fasciculata Sydney Carothers 2014-6-22 3 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  BLMAR257  Orobanche pinorum Jennifer Anthony-Wheeler 1997-7-10 257 Humboldt King range, UNCOMMON, parasitized ocean spray, growing on rocky, open forest slope 304 Comment
  UC1197444  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1947-7-5 17821 Humboldt Trinity Summit. Near Box Camp. Comment
  UC1245410  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1935-7-28 814 Humboldt Head of Devil's Hole, Trinity Summit. Comment
  UC906645  Orogenia fusiformis Joseph P. Tracy 1942-6-23 17252 Humboldt near top Trinity Summit (w. of Water-Dog Lakes) 1828 Comment
  UC1197574  Orthilia secunda Joseph P. Tracy 1932-7-16 10621 Humboldt Trinity Summit bear Corral Prairie 1584 Comment
  UC154112  Osmorhiza berteroi J. P. Tracy 1906-5-20 2464 Humboldt Immediate vicinity of Eureka 0 Comment
  CDA38481  Osmorhiza berteroi Kaylea Eickhoff, Cara M. Witte 2005-6-1 7 Humboldt Coldspring Camp, 7.4 mi. south of Hwy. 299 on NF1. Comment
  HSC96296  Osmorhiza occidentalis Laurel Goldsmith, Wanda Naylor 2005-6-10 7 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  HSC97459  Osmorhiza occidentalis C. Witte 2007-5-22 85 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1390 Comment
  HSC104035  Oxalis oregana E. R. Fyer 2015-3-19 7 Humboldt Six Rivers National Forest; along the East Fork of Willow Creek, off Hwy. 299 484 Comment
  HSC27853  Oxalis oregana Clifton Raymond Chesbrough 1973-6-19 59 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC47502  Oxalis oregana Sheila Logan 1978-4-10 28 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  SDSU604  Oxalis oregana D. F. Howe 1962-5-22 3309 Humboldt 3 miles east of Orick on Bald Mt. road. 396 Comment
  SEINET3347657 Image available Oxalis oregana A. A. Heller 1923-7-8 13770 Humboldt Near Pepperwood Comment
  UCD110986  Oxalis oregana K. Twitchell 1996-5-11 24 Humboldt Crannell, coastal cliffs along old Highway 101 at Moonstone beach access. 36 Comment
  UC203882  Oxalis oregana Joseph P. Tracy 1918-5-28 4940 Humboldt e Bald Mt. (High Prairie Creek); Northern Coast Ranges 914 Comment
  UC598569  Oxalis oregana W. K. Fisher 1899-6-12 48 Humboldt Humboldt Bay Comment
  UC302046  Oxalis trilliifolia Joseph P. Tracy 1926-5-22 7499 Humboldt Prairie Creek Northern Coast Ranges Comment
  UC249798  Panicum acuminatum var. acuminatum Joseph P. Tracy 1923-6-24 6350 Humboldt near High Prairie (Felt Prairie, Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC12343  Panicum capillare Steve Dorei 1970-10-31 126 Humboldt Scotia bluff area, N side of railroad tracks. Comment
  RSA10050  Panicum capillare Joseph P. Tracy 1930-10-12 9207 Humboldt Eel River, Alton to Fortuna Comment
Read comments
Oct 2 2011
  HSC12791  Parentucellia viscosa Jana Kattenhorn 1970-10-14 47 Humboldt Big Lagoon Comment
  UCD123252  Parentucellia viscosa Linda M. Barker 1976-7-5 1640 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC95379  Parentucellia viscosa Andrea Pickart 2002-8-7 195 Humboldt Arcata Bottoms, along Lanphere Rd. 20 Comment
  UCSB23368  Parentucellia viscosa Haller, John 1967-6-17 Humboldt Coastal dunes at Clam Beach County Park, U.S. Highway 101, about 10 miles north of Arcata Comment
  HSC104072  Parnassia palustris S. Carothers 2001-8-29 Humboldt Six Rivers National Forest; Lassics Botanical Area 1537 Comment
  HSC41014  Paxistima myrsinites J. P. Smith, J. O. Sawyer 1976-5-2 8636 Humboldt 8 mi. W of Loop Rd. on Hoopa Reservation along Redwood Creek-Hoopa Rd. Comment
  UC249586  Paxistima myrsinites Joseph P. Tracy 1921-6-19 5835 Humboldt mt. slopes along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, Three Creeks 670 Comment
  UC249517  Pectocarya pusilla Joseph P. Tracy 1922-4-30 5993 Humboldt near Willow Creek; Nothern Coast Ranges, Trinity River Valley 152 Comment
  UC146230  Pedicularis densiflora Joseph P. Tracy 1908-6-8 2637 Humboldt Kneeland Praire; Northern Coast Ranges 762 Comment
  UC902242  Pedicularis racemosa Joseph P. Tracy 1948-9-5 18170 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  RSA151842  Pedicularis racemosa Francia Chisaki, H. K. Sharsmith 1959-8-22 4754 Humboldt At Happy Camp adjacent to Douglas Fir Forest. Just over Trinity County line. 915 Comment
  UCD137559  Pellaea andromedifolia Lincoln Constance 1934-6-4 813 Humboldt Bull Creek Region, South Fork Eel River. Comment
  HSC54218  Pellaea brachyptera Griswold, Butler 1979-7-12 7282 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC39933  Penstemon anguineus J. O. Sawyer 1970-6-25 2292 Humboldt 1646 Comment
  HSC63803  Penstemon anguineus M. A. Baker 1979-6-7 798 Humboldt Along road to Telescope Peak next to stream between Telescope Peak and Snow Mtn. 915 Comment
  SD77341  Penstemon anguineus F. W. Pennell, J. P Tracy 1940-7-7 26092 Humboldt Grouse Mountain, w. of Salyer, gravelly bank 1372 Comment
  HSC97989  Penstemon laetus subsp. sagittatus Cara Witte 2007-7-8 432 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  JEPS11624  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15512 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  UCR39809  Penstemon newberryi D. K. Imper 1984-6-6 s.n. Humboldt Slate Creek Butte 1372 Comment
  UC1586908  Penstemon parvulus Juha Pykala and D. H. Norris 1987-6-10 1523 Humboldt on Onion Lake Road about 1-2 mi s from Onion Lake; Six Rivers National Forest, s from Onion Lake 1280 Comment
  UC146246  Penstemon rattanii Joseph P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC1097  Pentagramma triangularis J. R. Kahl 1962-5-4 21 Humboldt 2 mi. S of Trinidad along old Hwy. 101 30 Comment
  UC1197322  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1913-9-7 4390 Humboldt Eureka Northern Coast Region 0 Comment
  UC1197323  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1941-8-12 17051 Humboldt 2 mi s Fields Landing 6 Comment
  UC642250  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1932-7-14 10542 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC75289  Perideridia kelloggii J. O. Sawyer, M. A. Ericksen 1980-8-18 4061 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  UC1103410  Perideridia kelloggii Joseph P. Tracy 1924-5-4 6665 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC184145  Perideridia kelloggii Joseph P. Tracy 1912-10-20 3999 Humboldt Alton Northern Coast Region 30 Comment
  HSC35616  Perideridia oregana Thomas W. Nelson, B. Reinhardt 1975-7-30 2113 Humboldt E of Pilot Rock Comment
  CHSC114378  Persicaria wallichii B. Villegas; Bruce Bryan 2009-10-6 Humboldt Near Trinidad; Patricks Point Drive at Seawood Drive, east of Hwy 101. 91 Comment
  UC1070054  Petasites frigidus var. palmatus R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quad. Comment
  UCD134927  Petasites frigidus var. palmatus R. N. Raynor 1935-3-13 s.n. Humboldt Fort Seward. Comment
  RSA21605  Petasites palmatus C. B. Wolf 1937-9-14 9352 Humboldt North Coast Range, Lord Ellis Road, 7.6 miles east of Blue Lake. 213 Comment
  BLMAR423  Phacelia bolanderi Jennifer Wheeler 2007-9-5 423 Humboldt Red Mountain, oil drum road near culvert 1219 Comment
  HSC13622  Phacelia bolanderi D. E. Anderson 1963-5-25 2471 Humboldt About 1 mi. W of Fernbridge along Rd. to Ferndale Comment
  UC1222903  Phacelia californica Joseph P. Tracy 1950-6-8 18763 Humboldt e slope from summit Domingo Hill (near Petrolia) Comment
  HSC70694  Phacelia corymbosa Gail Newton 1980-7-15 1559 Humboldt Near Sims Mtn. 1311 Comment
  HSC57408  Phacelia mutabilis G. L. Clifton, Griswold 1979-7-26 10163 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  RSA21078  Phacelia mutabilis Carl B. Wolf 1937-8-13 9238 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC175504  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1912-6-9 3666 Humboldt Alton Northern Coast Region 30 Comment
  UC673179  Phacelia nemoralis subsp. oregonensis Lincoln Constance and Reed C. Rollins 1942-5-11 2782 Humboldt 6 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  RSA30622  Phacelia nemoralis subsp. oregonensis Lincoln Constance, R. C. Rollins 1942-5-11 2872 Humboldt Hoopa Valley 6 miles S of Hoopa. 122 Comment
  UC1222902  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1950-6-8 18737 Humboldt ridge summit near Mountain Glen Ranch (7 mi s of Ferndale); Bear River Ridge 609 Comment
  CAS-BOT-BC258863  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta 60 Comment
  SEINET200962 Image available Phalaris californica J. P. Tracy 1912-7-25 3819 Humboldt Kneeland Prairie N Coast Ranges 762 Comment
  HSC81658  Philadelphus californicus Thomas W. Nelson, Jane P. Nelson 1980-7-13 6063 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  CAS-BOT-BC76558  Philadelphus lewisii Carl D. Duncan 1920-9-27 s.n. Humboldt Supply Creek Canyon near Hoopa Comment
  UC11456  Philadelphus lewisii C. C. Marshall 1888-1 Humboldt Comment
  UC161560  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3318 Humboldt Willow Creek Northern Coast Ranges (near its mouth, creek is a tributary of Trinity River) 304 Comment
  UC183571  Philadelphus lewisii Joseph P. Tracy 1912-7-4 3722 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC666825  Philadelphus lewisii Joseph P. Tracy 1937-6-20 15355 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  UCSB25252  Philadelphus lewisii Tracy, Joseph 1937-6-20 Humboldt Bear River; 10 mi up from the mouth 152 Comment
  HSC102142  Phleum alpinum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1048 Humboldt Patterson Meadows 1555 Comment
  HSC100894  Phlox adsurgens Carl C. Marshall Jun 1886 324 Humboldt Trail E of Hoopa. Comment
  HSC99629  Phlox adsurgens T. Jimerson, J. Pageau 1979-6-22 610 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  UC615025  Phlox adsurgens Beryl O. Schreiber 1934-6-6 1144 Humboldt 5 mi e Gray's resort (road to Redding); Redwood Creek Comment
  SEINET3290582 Image available Phyllospadix torreyi Joseph P. Tracy 1938-9-9 16146 Humboldt Trinidad Comment
  UC1198700  Physocarpus capitatus Joseph P. Tracy 1922-10-29 6133 Humboldt Alton 30 Comment
  CAS-BOT-BC78289  Pinus attenuata A. A. Heller 1917-7-7 12811 Humboldt Alder Springs grade below Rattlesnake [spring] Spring Comment
  HSC99044  Pinus attenuata Cara Witte 2008-6-15 752 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1 mile north of intersection with 6N36A. 1428 Comment
  CAS-BOT-BC73289  Pinus contorta L. R. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad. Comment
  CAS-BOT-BC78377  Pinus contorta Ira L. Wiggins 1930-6-25 4620 Humboldt 2 miles north of Samoa Comment
  HSC31517  Pinus contorta Steve Selva, Roger Jensen 1974-8-28 92 Humboldt Approx. 5 mi. S of Arcata on the Samoa Peninsula Comment
  UC400255  Pinus contorta subsp. contorta P. E. Goddard 1901-8-1 Humboldt North Humboldt Bay Comment
  POM199392  Pinus contorta var. contorta H. E. Parks 1931-05 s.n. Humboldt Samoa, Pine Barrens. Comment
  HSC44319  Pinus monticola Brad Klipfel 1975-6-17 670 Humboldt Horse Mtn. Comment
  UC502915  Pinus monticola Joseph P. Tracy 1927-6-12 8134 Humboldt Horse Mountain Northn Coast Ranges, Horse Mountain (in open forest of Jeffrey Pine) 1524 Comment
  HSC37260  Pinus muricata Gary S. Lester 1976-1-3 580 Humboldt Seaward slope of Trinidad Head 91 Comment
  UC551328  Pinus muricata Charles T. Berg 1936-8-8 Humboldt Moonstone Beach Arcata, Moonstone Beach Comment
  HSC98866  Pinus ponderosa var. ponderosa Cara Witte 2008-7-1 787 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  UC1196411  Piperia unalascensis Joseph P. Tracy 1913-6-26 4346 Humboldt opposite Buck Mountain ( Dinesmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CDA42401  Pittosporum tenuifolium R. Robison 2014-5-5 s.n. Humboldt Trinidad State Beach, in area west of town, southwest of State Park Road parking lot, along path toward Ewing Street. 0 Comment
  UC526818  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC177186  Plagiobothrys nothofulvus Joseph P. Tracy 1913-6-13 4115 Humboldt opposite Buck Mountain (valley Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley Van Duzen River, Dinsmore's Ra 762 Comment
  POM126363  Plagiobothrys reticulatus Joseph P. Tracy 1912-6-9 s.n. Humboldt Alton. 30 Comment
  UC206144  Plagiobothrys reticulatus Joseph P. Tracy 1909-5-23 2972 Humboldt Eureka 0 Comment
  UC582613  Plagiobothrys reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt ten mi up stream from the mouth Bear River 152 Comment
  UC1222220  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17161 Humboldt 1 mi ne town [sic] Comment
  SEINET12275868  Plagiobothrys scouleri J. P. Tracy 1949-1 18322 Humboldt Cameron Hill on Kneeland Road Comment
  UC526813  Plagiobothrys tenellus Joseph P. Tracy 1932-5-17 10070 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  BLMAR625  Plantago coronopus Jennifer Wheeler 2011-6-7 625 Humboldt South Spit, Overflow parking area near interpretive kiosk 3 Comment
  UC198604  Plantago erecta Joseph P. Tracy 1917-5-30 4793 Humboldt mouth of Little River North Coast Ranges, Little River 6 Comment
  POM61312  Plantago hirtella var. galeottiana Joseph P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC55273  Plantago lanceolata Overton, Butler 1979-8-2 12653 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC89480  Plantago lanceolata P. A. Daly 1986-3-12 75 Humboldt Trinidad Head 61 Comment
  BLMAR262  Plantago lanceolata Jennifer Anthony-Wheeler 1998-7-14 262 Humboldt King range, strawberry rock grazing allotment 280 Comment
  CDA6622  Plantago lanceolata T. C. Fuller 1962-8-6 9359 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  HSC37170  Plantago lanceolata J. D. Ackerman 1974-5-25 259 Humboldt S Trinidad Beach, S of Trinidad Head Comment
  HSC99488  Plantago lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 147 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
  UC1733682  Plantago subnuda Kay H. Beach, Frank Gould 1940-5-5 483 Humboldt north of Eureka along roadside; with Plantago major and Plantago lanceolata. Comment
  HSC34285  Platanthera dilatata var. leucostachys Ken Irwin 1975-8-16 Humboldt Grogans Hole Area Comment
  UC275579  Platanthera leucostachys Joseph P. Tracy 1924-7-13 6726 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC53951  Platanthera sparsiflora Griswold, Butler 1979-7-11 7001 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC55140  Platanthera sparsiflora G. L. Clifton, Griswold 1979-8-1 12021 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC79386  Platystemon californicus Kenneth Clark 1981-5-24 1390 Humboldt Abalone Pt. 15 Comment
  UC35089  Platystemon californicus W. C. Blasdale 1896-6-2 Humboldt W. Eureka Comment
  UC502932  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Valley of South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  CHSC77469  Plectritis ciliosa subsp. insignis Vernon H. Oswald 2000-4-3 9913 Humboldt Samoa Road at the County Boat Ramp on the North Spit of Humboldt Bay. 4 Comment
  HSC59486  Plectritis congesta M. A. Ericksen 1979-4-29 239 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  UC1239586  Plectritis congesta Harley P. Chandler May, 1901 1149 B Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  HSC97496  Plectritis congesta subsp. brachystemon Cara Witte 2007-5-21 62 Humboldt White Oak Opening. 1257 Comment
  UCD90107  Pleuropogon refractus Joseph P. Tracy 1939-7-9 16334 Humboldt Snow Camp. Comment
  RSA10113  Poa Joseph P. Tracy 1930-7-19 9053 Humboldt South Fork Mountain; along summit near Blake lookout. 1738 Comment
  HSC10618  Poa annua R. H. Berg 1963-3-1 5 Humboldt Arcata, Fickle Hill area. Comment
  HSC89479  Poa annua P. A. Daly 1986-3-12 76 Humboldt Trinidad Head, along trail 61 Comment
  UC1607848  Poa annua Harold E. Parks June 1933 4317 Humboldt Spruce Cove Trinidad Comment
  RSA10140  Poa compressa Joseph P. Tracy 1927-7-3 8224 Humboldt Fieldbrook 61 Comment
  HSC33722  Poa confinis Dryden 1975-5-24 201 Humboldt Samoa Dunes off Samoa Blvd. across from boat landing. Comment
  SACT001836  Poa confinis Lyle Bibb 1963-5-11 Humboldt Coastal strand amound sandy beach east or Arcata. Sand spit. Comment
  OBI35877  Poa douglasii David J. Keil 1983-7-1 17286 Humboldt Ca. 5 mi NW of Petrolia along Mattlole Rd Comment
  UC207741  Poa douglasii Joseph P. Tracy 1917-5-30 4799 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  UC584206  Poa douglasii David D. Keck and J. Clausen 1935-6-16 3382 Humboldt mouth of Little River Comment
  UC1103795  Poa howellii Joseph P. Tracy 1918-7-5 5035 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  UC1103185  Poa kelloggii J. P. Tracy 1901-6-10 11321 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC255943  Poa pratensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UCD91813  Poa pratensis Linda M. Barker 1976-6-1 1567 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC101481  Poa pratensis subsp. pratensis J. P. Smith 2010-5-29 12888 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  UC187249  Poa pratensis subsp. pratensis Joseph P. Tracy 1911-6-25 3259 Humboldt Bucksport; Northern Coast Region, Humboldt Bay 0 Comment
  UCD90874  Poa secunda subsp. secunda J. B. Davy; W. C. Blasdale 1899-6-19 5658 Humboldt Hoopa Summit. Comment
  UC187225  Poa unilateralis Joseph P. Tracy 1910-4-24 3124 Humboldt Ocean Beach; Northern Coast Region, Humboldt Bay Comment
  UC153997  Pogogyne serpylloides Joseph P. Tracy 1908-6-7 2622 Humboldt at Butter Valley on Mad River 152 Comment
  UC1988936  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta, five miles east of town, open flat by old Strong's District School House 45 Comment
  CAS-BOT-BC232886  Polemonium carneum Carl B. Wolf 1937-6-17 8881 Humboldt Big Lagoon, S side at W of Redwood Highway 6 Comment
  CDA3403  Polycarpon tetraphyllum Gordon Leppig 2000-12-6 1522 Humboldt 13th and A Streets, Arcata. Comment
  HSC69751  Polycarpon tetraphyllum Thomas W. Nelson 1977-10-10 3756 Humboldt Jct. of Fairway Dr. and Lundbar Place, Eureka Comment
  HSC61767  Polygala californica Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan 229 Comment
  UC1198996  Polygala californica Joseph P. Tracy 1921-4-24 5455 Humboldt facing South Fork Eel River (Phillipsville); Northern Coast Ranges, , South Fork Eel River 121 Comment
  UC668190  Polygala californica Joseph P. Tracy 1938-7-5 16002 Humboldt by old Strong's District School House (5 mi e of Carlotta); Carlotta, old Strong's District School House 45 Comment
  HSC17223  Polygala cornuta J. P. Tracy, H. E. Parks Humboldt Hors Linto Rd., Trinity River 610 Comment
  UC1541401  Polygonum amphibium var. emersum H. E. Parks August 1934 5165 Humboldt Big Lagoon Comment
  UC1198085  Polygonum amphibium var. stipulaceum Joseph P. Tracy 1934-7-30 13495 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  UC672973  Polygonum aviculare subsp. depressum Joseph P. Tracy 1940-10-18 16778 Humboldt Trinidad 9 Comment
  UC1198073  Polygonum bistortoides Joseph P. Tracy 1908-6-8 2643 Humboldt Kneeland Prairie Northern Coast Ranges (near Hurley's) 762 Comment
  SEINET3405167 Image available Polygonum californicum Joseph P. Tracy 1929-8-18 8654 Humboldt Along Van Duzen River, Opposite Buck Mountain Comment
  UC672969  Polygonum davisiae Joseph P. Tracy Jul 16 1930-Jul 19 1930 9057 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC55269  Polygonum douglasii Overton, Butler 1979-8-2 12642 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  BLMAR58  Polygonum paronychia Jennifer Anthony-Wheeler 1994-3-1 58 Humboldt Samoa/manilla dunes, growing throughout the coastal dunes 12 Comment
  HSC17516  Polygonum paronychia H. E. Parks Feb 1934 4834 Humboldt Stone Lagoon Comment
  JEPS50545  Polygonum persicaria W. L. Jepson 1936-8-17 17914 Humboldt 2 mi s Field's Landing (near Still's Ranch) Comment
  HSC99116  Polygonum phytolaccifolium Cara Witte 2008-6-18 741 Humboldt 2 miles north of the intersection between National Forest 1 and Friday Ridge Road/ 6N08 1580 Comment
  JEPS79950  Polygonum polystachyum Joseph P. Tracy 1940-10-18 16775 Humboldt Eureka 30 Comment
  UC162921  Polygonum punctatum Joseph P. Tracy 1911-7-8 3473 Humboldt Clover Flat mine Northern Coast Ranges, Valley of Trinity River (along streamlet, near mouth of Willow Creek) 152 Comment
  CDA2918  Polygonum sachalinense T. C. Fuller 1968-7-3 17447 Humboldt Northeast side of Highway 101 freeway overpass, Fields Landing. 0 Comment
  HSC98684  Polygonum sawatchense subsp. sawatchense Cara Witte 2007-6-20 312 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  POM302976  Polygonum spergulariiforme H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC421010  Polygonum spergulariiforme Volney Rattan No date on label s.n. Humboldt Unspecified Comment
  HSC79433  Polypodium californicum Kenneth Clark 1981-4-5 1229 Humboldt Dead Man's Gulch 69 Comment
  CHSC53230  Polypodium glycyrrhiza L. P. Janeway 1984-12-5 1194 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd near the boat ramp. 4 Comment
  SEINET192538 Image available Polypodium glycyrrhiza George Neville Jones 1936-3-22 Humboldt along the south fork of the Eel R. near Garberville Comment
  HSC1111  Polypodium glycyrrhiza Gene S. Van Horn 1962-1-6 7 Humboldt 9 mi. E of Yager Cr. bridge in Carlotta, on Hwy. 36 between highway and Van Duzen river 152 Comment
  HSC28927  Polypodium glycyrrhiza Diane Johnson 1972-4-12 Humboldt Butler Valley near Big Bend Rd. Comment
  UC197909  Polypodium glycyrrhiza Joseph P. Tracy 1913-3-9 4023 Humboldt Hydesville; Northern Coast Region 30 Comment
  UCD136862  Polypodium glycyrrhiza Lincoln Constance 1934-5-31 748 Humboldt South fork Eel River, Bull Creek region. Comment
  CAS-BOT-BC72087  Polypodium scouleri T. G. W. s.n. Humboldt Arcata Comment
  CHSC19517  Polypodium scouleri J. F. Knezevich 1968-5-13 429 Humboldt Collected near Arcata above Freshwater Forest. Comment
  HSC26398  Polypodium scouleri T. O. Osborne 1970-9-16 33 Humboldt Trinidad Bay, Prisoner Rock Comment
  UC62442  Polypodium scouleri W. C. Blasdale 1896-6-2 Humboldt w Eureka Eureka Comment
  HSC1116  Polypodium scouleri Gene S. Van Horn 1962-5-26 33 Humboldt 250 E 17th St., Arcata 61 Comment
  UCSB26619  Polypodium scouleri Havlik, Neil 1968-8-21 Humboldt Samoa, west of Eureka 9 Comment
  UC207735  Polypogon interruptus Joseph P. Tracy 1916-9-5 4765 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC526773  Polypogon interruptus Joseph P. Tracy 1930-6-29 8819 Humboldt lower foothills nw slope Buck Mountain; Northern Coast Ranges, nw slope Buck Mountain 762 Comment
  HSC10832  Polypogon maritimus D. E. Anderson 1965-9-5 4077 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  CAS-BOT-BC232594  Polypogon monspeliensis Harley P. Chandler 1901-6-1 1431 Humboldt Klamath River 335 Comment
  HSC45224  Polypogon monspeliensis M. Alcasas 1978-5-27 106 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  UC1103196  Polypogon monspeliensis J. P. Tracy 1901-7-24 1217 Humboldt streets Eureka; immediate vicinity of Eureka 0 Comment
  UCD91310  Polypogon monspeliensis J. B. Davy; W. L. Blasdale 1899-5 5549 Humboldt Scotia. Comment
  UCD91355  Polypogon monspeliensis A. H. Murphy 1951-7-10 83 Humboldt Along Strong Station-Yager Creek road, about 1 mile from Strong Station. Comment
  UCD91383  Polypogon monspeliensis Joseph P. Tracy 1942-6-15 17144 Humboldt Redwood Creek, opposite Redway on South Fork and Eel River. 91 Comment
  UC1440055  Polystichum Danin & H. G. Baker 1960-9-2 663 Humboldt Bull Creek-Honeydew Rd. Comment
  HSC89413  Polystichum munitum P. A. Daly 1986-3-12 73 Humboldt Trinidad Head, along trail 61 Comment
  UC906749  Polystichum munitum Joseph P. Tracy 1947-7-9 17843 Humboldt Horse Mt. 1432 Comment
  SEINET4555667 Image available Polystichum munitum Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15049 Humboldt 20 miles north of Eureka. Comment
  HSC98644  Populus trichocarpa Cara Witte 2007-7-26 598 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1366 Comment
  UC1198265  Potamogeton natans Joseph P. Tracy 1917-5-30 4809 Humboldt near mouth of Little River; Northern Coast Ranges 6 Comment
  RSA246705  Potentilla anserina var. grandis Robert F. Thorne, Percy C. Everett 1965-8-7 35228 Humboldt Samoa Peninsula. 3 Comment
  HSC56432  Potentilla gracilis var. fastigiata Griswold, Butler 1979-7-12 7144 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC49151  Proboscidea louisianica Garry Markegard 1979-9-11 Humboldt Along Bald Hills Rd. ca. 400 ft. N of the Rd. between Williams Ridge and Cagle Ridge at old stage stop ca. 12 mi. from Jct. with State Route 101, Simpson property, Mr. Emmss caretaker, adjacent to vegetable garden. Comment
  SBBG58721  Prosartes hookeri R. Hartwell 1938-8-4 107 Humboldt Bull Crk Flat Comment
  UCD139805  Prosartes hookeri H. P. Olmo 1931-6-8 s.n. Humboldt near Orich. Comment
  HSC12222  Prosartes smithii Gary J. Stebbins 1970-5-17 80 Humboldt Along Jolly Giant Creek, 2.7 mi. up from HSC dorms 76 Comment
  HSC60293  Prosartes smithii Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  HSC23126  Prunella vulgaris A. D. Maxfield 1967-7-12 2 Humboldt 400 yds. SW of Strawberry Creek and Dows Prairie Rd., McKinleyville 91 Comment
  SEINET13947063 Image available Prunella vulgaris W. J. Ferlatte, B. D. Rogers 1966-1 2093 Humboldt Near Bridgeville; T30N, R3E, SEC11 Comment
  SD93020  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 220 Humboldt Highway 101 near Dyerville. 60 Comment
  UCD125337  Prunella vulgaris var. lanceolata Roman Gankin 1965-8-6 560 Humboldt 2.5 miles SW of Capetown. Comment
  CAS-BOT-BC159977  Prunus emarginata Doris K. Kildale 1927-6-26 3600 Humboldt Big Lagoon Comment
  RSA249327  Prunus emarginata D. E. Anderson 1972-6-13 5572 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  CAS-BOT-BC357607  Pseudognaphalium stramineum Joseph P. Tracy 1937-8-3 15614 Humboldt Along Mad River, near Blue Lake 15 Comment
  HSC91915  Pseudognaphalium stramineum E. Mackey 1986-7-21 Humboldt Patricks Point State Park; Palmer's Point Comment
  HSC37672  Pseudognaphalium stramineum R. Sutherland 1976-8-19 8 .19876 Humboldt 259 Comment
  CAS-BOT-BC80112  Pseudotsuga menziesii Doris K. Kildale 1928-10-7 6756 Humboldt Trinity River at mouth of Willow Creek Comment
  HSC54603  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-24 9686 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  JEPS48296  Pseudotsuga menziesii var. menziesii Lincoln Constance 1934-5-24 643 Humboldt lower Look Prairie Bull Creek Region 121 Comment
  UC55958  Pseudotsuga menziesii var. menziesii J. P. Tracy 1901-4-26 1058 Humboldt immediate vicinity of Eureka 0 Comment
  UC1197761  Pterospora andromedea Joseph P. Tracy 1947-7-9 17857 Humboldt Horse Mt. 1432 Comment
  UCR45348  Pyrola aphylla Barry Silver 1986-5-3 567 Humboldt North Coast Ranges, Forest Road 7N02 to Waterman Ridge, 7 mi from Willow Creek 976 Comment
  HSC48681  Pyrola crypta Brad Klipfel 1973-7-31 244 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC44559  Pyrola picta Brad Klipfel 1973-7-15 178 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55032  Pyrola picta Overton, Butler 1979-7-31 11471 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  CAS-BOT-BC466036  Pyrola picta Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  SEINET10970825  Quercus chrysolepis Jones 1985-6-6 Jones 112 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, querus Chrysolepis, quercus vaccinifolia habitat 1143 Comment
  CAS-BOT-BC62728  Quercus garryana var. breweri Doris K. Kildale 1926-8-22 2573 Humboldt Bald hills, near Tomlinson's 716 Comment
  HSC98612  Quercus garryana var. garryana Cara Witte 2008-6-13 716 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1382 Comment
  OBI36669  Quercus garryana var. garryana David J. Keil 1983-7-2 17343 Humboldt 21 mi S of SR 299 along Titlow HIll rd, SW of Willow Crk Comment
  RSA624390  Quercus kelloggii Louis C. Wheeler 1952-9-14 6931 Humboldt [No location information on label.] Comment
  UC1196357  Quercus kelloggii Joseph P. Tracy 1940-10-15 16780 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC667984  Quercus kelloggii Joseph P. Tracy 1938-11-26 16176 Humboldt between Miranda and Garberville (at Sylvandale); South Fork of Eel River, Sylvandale 91 Comment
  UCD165089  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 22 mi. from Garberville along Alderpoint Rd. 116 Comment
  UCD47241  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi N.E. of Hooba along trail towards Trinity Summit from end of forest Rd. 1463 Comment
  HSC98847  Quercus vacciniifolia Cara Witte 2008-7-11 867 Humboldt Horse Mountain Botanical Area. National Forest 1. 1/2 mile west of intersection with Forest Service Roads 6N38 and 6N36. 1426 Comment
  UC667981  Quercus vacciniifolia Joseph P. Tracy 1936-8-7 15116 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UCD47406  Quercus vacciniifolia H. L. Mason 1932-7-21 7018 Humboldt East slope of Southfork Mts. On road Arcata to Weaverville, Humboldt County. Comment
Read comments
Oct 6 2006
  SEINET10477739  Quercus vacciniifolia Jone 1985-6-6 JONE 113 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy 299 going to horse mt. Found At intersection of titlow rd. And the road to horse mt. Summit. Pinus, arbutus, Quercus chrysolepis, quercus vaccinifolia habitat 1143 Comment
  CAS-BOT-BC539322  Quercus wislizeni Lois Weeth; Kerry Heise; John M. Tucker 2003-10-21 s.n. Humboldt 22 mi from Garberville along Alderpoint Rd; stop #2 116 Comment
  RSA178538  Quercus wislizeni Joseph P. Tracy 1950-6-15 18796 Humboldt Mail Ridge, north of Harris 7 miles Comment
  UC275513  Quercus wislizeni Joseph P. Tracy 1923-10-14 6576 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  HSC18121  Ranunculus aquatilis var. diffusus D. E. Anderson 1965-6-1 3782 Humboldt Rd. to Brush Mtn., 0.25 mi. from Hwy. 299 Comment
  HSC24631  Ranunculus flammula var. ovalis J. P. Tracy 1937-7-17 15436 Humboldt Eureka 46 Comment
  HSC100618  Ranunculus flammula var. reptans Carl C. Marshall May 1886 200 Humboldt Damp places. Comment
  HSC18216  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  HSC26676  Ranunculus muricatus Thomas W. Nelson 1971-5-7 430 Humboldt Dunes at Lamphere property Comment
  JEPS60699  Ranunculus occidentalis W. L. Jepson 1934-5-7 16703 Humboldt Buckeye Prairie Bull Creek Comment
  UC1368470  Ranunculus occidentalis R. K. Gierisch and D. H. Esplin 1969-7-1 3529 Humboldt Grouse Mtn. Six Rivers National Forest Comment
  HSC76583  Ranunculus occidentalis var. occidentalis Denis Kearns 1981-7-23 408 Humboldt Near Whiteys Peak. 1524 Comment
  HSC82102  Ranunculus occidentalis var. occidentalis Thomas W. Nelson, Jane P. Nelson 1980-5-25 5266 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  SEINET180820  Ranunculus occidentalis var. rattanii Bassett Maguire, R Maguire; C. B. Maguire 1934-6-9 15179 Humboldt Clam Beach 15 mi N of Eureka Comment
  HSC53862  Ranunculus orthorhynchus Griswold, Butler 1979-7-10 6338 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC118220  Ranunculus orthorhynchus var. orthorhynchus J. W. Blankinship 1893-6-15 Humboldt Yager Comment
  SBBG2270  Ranunculus repens H. and M. Dearing 1939-5-26 3445 c Humboldt near Arcata Comment
  HSC18176  Ranunculus repens var. repens Francis Winter 1960-4-19 Humboldt Samoa Peninsula, 4.5 mi. W of Arcata Comment
  HSC12337  Raphanus sativus Steve Dorei 1970-10-26 115 Humboldt Arcata, South G st. Comment
  HSC6888  Raphanus sativus W. F. Nickel 1965-4-3 Humboldt 1 mi. N of Orick on Hwy. 101 Comment
  RSA34319  Raphanus sativus Doris K. Kildale 1926-5-7 1506 Humboldt Bucksport. Eureka. Comment
  UC1197986  Rhamnus californica Joseph P. Tracy 1918-9-29 5111 Humboldt Myer's Ranch Northern Coast Ranges, South Fork Eel River 60 Comment
  UC165815  Rhamnus californica subsp. californica Joseph P. Tracy 1911-7-4 3292 Humboldt near mouth of Willow Creek (tributary of the Trinity River); Northern Coast Ranges, Trinity River, Willow Creek 243 Comment
  UC592943  Rhamnus californica subsp. californica Carl B. Wolf 1931-8-31 Humboldt near Mouth of South Fork of Trinity River (on road to Sandy Bar Swimming Hole) 243 Comment
  UCR136663  Rhamnus purshiana H. E. Parks, S. T. Parks 1937-1 24018 Humboldt North Coast, Spruce Cove, Trinidad Comment
  CAS-BOT-BC58192  Rhododendron columbianum Doris K. Kildale 1927-6-26 3593 Humboldt Patick's Point. Comment
  HSC31567  Rhododendron macrophyllum Glenn McGourty 1974-5-11 37 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC7878  Rhododendron macrophyllum D. E. Anderson 1961-8-11 1732 Humboldt E of Humboldt State University campus 30 Comment
  UC1733675  Rhododendron occidentale Frank Gould, Kay H. Beach 1940-5-5 1041 Humboldt along north coast, north of Eureka. Comment
  UCSB22300  Rhododendron occidentale Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  HSC36437  Rhododendron occidentale var. paludosum John Rehling 1974-7-8 5 Humboldt County park at Big Lagoon Comment
  HSC44449  Rhododendron occidentale var. paludosum Brad Klipfel 1975-5-30 655 Humboldt N of Horse Mtn. Comment
  RSA46883  Rhododendron occidentale var. paludosum Doris K. Kildale 1926-1-3 1485 Humboldt Big Lagoon. Comment
  UC667031  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt along Trinity Highway Willow Creek Canyon 762 Comment
  UC1225766  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1941-3-26 16813 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  HSC82210  Ribes inerme var. klamathense Thomas W. Nelson, Jane P. Nelson 1977-5-30 3420 Humboldt Beside State Route 36 just W of Dinsmore at Hwy bridge over Van Duzen River 732 Comment
  JEPS49418  Ribes inerme var. klamathense Harley P. Chandler June, 1901 1320 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC103232  Ribes lacustre Jade Paget-Seekins 2010-6-14 20 Humboldt Groves Prairie. Near a bridge just upstream from the campsite near the prairie. 1261 Comment
  JEPS79965  Ribes lacustre Joseph P. Tracy Jul 16 1930-Jul 19 1930 9078 Humboldt near McKay Camp (Northern Coast Ranges, South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC176807  Ribes laxiflorum Doris K. Kildale 1927-4-10 3080 Humboldt Prairie Creek, north of Orick Comment
  POM274396  Ribes laxiflorum H. E. Parks 1937-6-4 24004 Humboldt Along Prairie Creek at Valley Green Comment
  UC667058  Ribes lobbii Joseph P. Tracy 1935-5-12 13801 Humboldt summit between North Fork Mad River and Redwood Creek (on Trinity Highway) 670 Comment
  HSC20312  Ribes menziesii R. E. Thill 1965-5-1 25 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. Comment
  UC902103  Ribes menziesii Joseph P. Tracy 1948-2-22 17950 Humboldt Hydesville 91 Comment
  HSC102092  Ribes nevadense M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 995 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC100494  Ribes sanguineum Carl C. Marshall Apr 1885 135 Humboldt Near the coast everywhere. Comment
  HSC20341  Ribes sanguineum M. S. Miller 1965-4-2 18 Humboldt Arcata, HSC campus Comment
  HSC22511  Ribes sanguineum D. E. Anderson 1964-4-24 3540 Humboldt 0.5 mi. from junction of Hwy. 299 along Titlow Hill Rd. Comment
  UC1222367 Image available Ribes sanguineum Joseph P. Tracy 1950-5-7 18649 Humboldt head South Yager River Comment
  UC667053  Ribes sanguineum Joseph P. Tracy 1935-7-25 14246 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC20344  Ribes sanguineum var. glutinosum Francis Winter 1960-2-28 Humboldt Samoa Peninsula 6 mi. W of Arcata, Ca Comment
  HSC103233  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-14 21 Humboldt Groves Prairie. Near a bridge just upstream from the campsite near the prairie. 1261 Comment
  HSC96223  Ribes viscosissimum Eric Schori, Kazuyuki Ishimaru 2005-6-15 10 Humboldt 17 mi. S of Hwy. 299, S bank of roadside 1575 Comment
  UC492213  Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  RSA0020901  Ribes viscosissimum Jos. Burtt Davy 1899-6-23 5848 Humboldt Trinity Summit. 2134 Comment
  UC1561989  Romanzoffia californica Barbara Ertter with Thomas J. Delendick 1987-5-16 6937 Humboldt ca. 20 airmiles e. Arcata (3. mi. e. of Berry Summit on Hwy. 299, s. side of rd. above Willow Creek) 800 Comment
  UC492263  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9667 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC74508  Rorippa curvisiliqua Malcom A. Nobs; S. Galen Smith 1949-8-9 1238 Humboldt On southern side of the town of Blue Lake. Comment
  POM312447  Rorippa curvisiliqua Malcolm A. Nobs, S. Galen Smith 1949-8-9 1238 Humboldt Marshy pond on south side of the town of Blue Lake. Comment
  UC161485  Rorippa curvisiliqua J. P. Tracy 1906-7-1 2519 Humboldt vicinity Eureka; vicinity Eureka 0 Comment
  UC302164  Rosa Joseph P. Tracy 1925-6-21 7128 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC667029  Rosa Joseph P. Tracy 1936-8-24 15179 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC183752  Rosa eglanteria Joseph P. Tracy 1912-8-4 3981 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC32264  Rosa gymnocarpa J. O. Sawyer 1970-6-24 2249 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UC667045  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-9 14886 Humboldt Bear River Ridge 609 Comment
  POM275415  Rosa pinetorum Lyman D. Benson 1928-7-12 s.n. Humboldt Clam Beach, Trinidad. 15 Comment
  CAS-BOT-BC148341  Rosa pisocarpa L. R. Abrams 1916-7-18 6077 Humboldt Between Arcata & Trinidad Comment
  CAS-BOT-BC148220  Rosa spithamea L. R. Abrams 1918-6-15 7102 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  HSC102093  Rubus parviflorus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 996 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC19672  Rubus parviflorus R. I. Bonn 1965-5-9 47 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC58061  Rubus parviflorus G. L. Clifton, Griswold 1979-8-1 11937 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC60109  Rubus parviflorus M. A. Baker 1977-5-1 279 Humboldt E of Humboldt State University. Comment
  UCSB30625  Rubus parviflorus Edwards, David 1974-8-14 Humboldt S. side of dirt road, ca 1/2 - 3/4 mi in on dirt road from jct. with Fickle Hill Rd, ca 1/4 mi E of junction of Fickle Hill Rd and Park Av. Arcata Comment
  HSC19690  Rubus spectabilis K. P. St. John 1965-4-3 8 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  HSC60111  Rubus spectabilis M. A. Baker 1977-5-1 278 Humboldt E of Humboldt State University. Comment
  UC584131  Rubus spectabilis David D. Keck and J. Clausen 1935-6-16 3394 Humboldt mouth of Little River Comment
  HSC38943  Rubus ursinus Linda M. Barker 1976-6-1 1565 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC8607  Rubus ursinus R. E. Hafenfeld 1965-5-9 5 Humboldt Near jct. of Gold Bluff Beach Rd.and Squashan Cr. Comment
  UC492169  Rubus ursinus Joseph P. Tracy 1931-4-26 9339 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley at Willow Cr 152 Comment
  UCD113990  Rubus ursinus Linda M. Barker 1976-6-1 1565 Humboldt 3 miles west of Arcata. Comment
  UCD17616  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 048 Humboldt California. Humboldt County: 12.2 miles north of Ettersburg on road to Honeydew. Comment
  UCD17844  Rubus ursinus H. Olmo 8-10 May 1962 62- 31 Humboldt California. Humboldt County: 9 miles east of Carlotta. Comment
  SEINET5710897  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  SEINET5710899  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC95749  Rumex acetosella Steven Lee 2004-4-26 33 Humboldt Along Stuart Ave. W of of Alliance Comment
  HSC48031  Rumex acetosella Brad Klipfel 1974-5-27 404 Humboldt Horse Mtn. Comment
  HSC59582  Rumex acetosella Rick Lundquist 1979-4-24 34 Humboldt SE corner 7th and Union St., Arcata 24 Comment
  HSC69627  Rumex acetosella R. Kalal 1980-5-8 32 Humboldt Along Jackson Ranch Rd. 6 Comment
  CAS-BOT-BC421747  Rumex conglomeratus Henry M. Pollard 1945-8-24 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  RSA280496  Rumex conglomeratus Lyman Benson 1998-7-11 s.n. Humboldt Weott Ranger Station, Seaward N Coast, S fork Eel. 61 Comment
Read comments
Aug 16 2013
  CAS-BOT-BC421525  Rumex crassus Doris K. Kildale 1926-6-29 2242 Humboldt Mouth of Mad River Comment
  UC162326  Rumex crispus Joseph P. Tracy 1911-7-7 3375 Humboldt 3 mi nw Willow Creek and Trinity River junction (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC31482  Rumex salicifolius R. F. Thorne, P. Everett 1965-8-9 35311 Humboldt Big Lagoon 3 Comment
  HSC4147  Sagina apetala W. L. Jepson 1921-8-7 9337 Humboldt Stone Lagoon Comment
  UC161047  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-5-2 2181 Humboldt at Eureka Northern Coast Region, Eureka 0 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
  POM219693  Salix exigua H. E. Parks 1931-5-14 958 Humboldt Fernbridge. Eel River. 10 Comment
  HSC100648  Salix flavescens Carl C. Marshall Mar 1887 390 Humboldt Humboldt Hill. Comment
  CAS-BOT-BC104099  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104103  Salix hindsiana Harold E. Parks 1931-5-14 0958 Humboldt Fernbridge, Eel River 10 Comment
  CAS-BOT-BC104109  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-BC104113  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01335 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107759  Salix hookeriana Harold E. Parks 1931-5-28 01000 Humboldt Little River Lagoon Comment
  CHSC9658  Salix hookeriana E. L. Smith 1971-8-17 1028 Humboldt Between highway and beach at Trinidad. Comment
  HSC90764  Salix hookeriana Gail Newton 1983-6-5 3641 Humboldt Elk River Wildlife Area, Eureka Comment
  LA208761  Salix hookeriana Harold E. Parks; 1931-3-24 914 Humboldt Fortuna, on banks of Eel River 10.0 Comment
  SBBG59115  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  SD939  Salix hookeriana Harold E. Parks August 1931 1053 Humboldt Little River Lagoon Comment
  UC1196676  Salix hookeriana Joseph P. Tracy 1931-3-26 9304 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC469125  Salix hookeriana Joseph P. Tracy 1931-8-23 9621 Humboldt sand dunes near Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC504053  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 5 Humboldt around Eureka Comment
  HSC40871  Salix lasiandra Linda M. Barker 1976-9-3 1690 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1196590  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1919-9-14 5205 Humboldt near Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC481239  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1931-8-15 1078 Humboldt Van Duzen R. Blue Slide; , Blue Slide 100 Comment
  HSC96616  Salix lasiandra var. lasiandra Gordon Leppig 2005-4-8 2205 Humboldt N Spit Swamp, W side of highway 3 Comment
  SD1004  Salix lasiandra var. lasiandra Harold E. Parks, Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  CAS-BOT-BC107104  Salix lasiolepis Joseph P. Tracy 1931-3-31 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  HSC19990  Salix lasiolepis R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1358 Humboldt 1.5 mi. E of Blue Lake on Hwy. 299 Comment
  HSC43415  Salix lasiolepis R. Sutherland 1978-2-18 2 .18278 Humboldt S side mouth of Mattole River 11 Comment
  JEPS12973  Salix lasiolepis Joseph P. Tracy 1932-4-24 9803 Humboldt between Miranda and Redway (S. Fork Eel River); North Coast Ranges 91 Comment
  POM160285  Salix lasiolepis Joseph P. Tracy 1926-2-28 7373 Humboldt Trinity River Valley, near the S Fork. 183 Comment
  UC1196621  Salix lasiolepis Joseph P. Tracy 1926-9-19 7802 Humboldt Valley of S. Yager Creek Northern Coast Ranges, Valley of S. Yager Creek 762 Comment
  UC1222296  Salix lasiolepis Joseph P. Tracy 1950-4-20 18623 Humboldt gravel bar in river 10 mi se Dinsmore's (about 4 mi se of Kuntz); Van Duzen River Comment
  UC469421  Salix lasiolepis Joseph P. Tracy 1930-6-15 8737 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC469424  Salix lasiolepis Joseph P. Tracy 1931-8-16 9614 Humboldt vicinity of Garberbille; Northern Coast Ranges 121 Comment
  UC470407  Salix lasiolepis Joseph P. Tracy 1931-9-26 9697 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC481340  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC504031  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1338 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River Comment
  UC506397  Salix lasiolepis Joseph P. Tracy 1933-3-19 10934 Humboldt Bridgeville Northern Coast Ranges, Van Duzen River (along river) 228 Comment
  UC519329  Salix lasiolepis Joseph P. Tracy 1933-5-14 12181 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UC519345  Salix lasiolepis Joseph P. Tracy 1933-10-22 13102 Humboldt Lack Pond Trinity River Valley (opposite mouth of Willow Creek) 152 Comment
  CDA39555  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  CAS-BOT-BC107288  Salix lasiolepis var. bigelovii Joseph P. Tracy 1933-4-9 10968 Humboldt along Van Duzen R. 228 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
  CHSC9645  Salix lucida subsp. lasiandra E. L. Smith 1971-8-17 1016 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  HSC99455  Salix lucida subsp. lasiandra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 107 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
  RSA34304  Salix lucida subsp. lasiandra Doris K. Kildale 1927-3-20 2926 Humboldt Stevens Grove. Comment
  JEPS12972  Salix melanopsis Joseph P. Tracy 1931-9-7 9644 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA5738  Salix melanopsis H. E. Parks 1931-5-14 956 -a Humboldt Van Duzen River above Bridgeville. 300 Comment
  SBBG57955  Salix melanopsis H. E. Parks 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  UC1196571  Salix melanopsis Joseph P. Tracy 1932-7-31 10293 Humboldt Eel R. at mouth of Larrabee Creek; Northern Coast Ranges, Eel R. 60 Comment
  UC511988  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1245 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  RSA0005850  Salix parksiana H. E. Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC129250  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-BC129138  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt Open ground at Corral Prairie - Trinity Summit, Klamath Mountains 1524 Comment
  CAS-BOT-BC129142  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  CAS-BOT-BC129172  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  HSC20079  Salix scouleriana J. P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon 610 Comment
  JEPS14778  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 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
  UC490505  Salix scouleriana Joseph P. Tracy 1932-8-11 10338 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  CAS-BOT-BC128998  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  HSC38135  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-23 3280 Humboldt Van Duzen River at Grizzley Creek Comment
  UC481276  Salix sitchensis Harold E. Parks 1931-5-28 1029 Humboldt Little River Lagoon Comment
  UC490493  Salix sitchensis Joseph P. Tracy 1932-8-27 10749 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  RSA407351  Sambucus callicarpa Lyman Benson 1973-08 815 Humboldt Weott Ranger Station 61 Comment
  SD56862  Sambucus callicarpa Darley F. Howe 1963-8-6 3704 Humboldt 4.5 miles south of Orick on Highway 101. Comment
  HSC98110  Sambucus mexicana Cara Witte 2007-6-27 362 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  SBBG25338  Sambucus nigra subsp. caerulea D. G. Forbes 1966-4-4 66 -432 Humboldt 1 mi N of Fresh Water Lagoon, US Hwy 101 30 Comment
  SBBG25586  Sambucus nigra subsp. caerulea E. R. Blakley 1966-8-17 6796 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  SDSU2909  Sambucus racemosa var. racemosa D. F. Howe 1963-8-6 3704 Humboldt 4.5 miles south of Orick on #101. Comment
  UCD137263  Sambucus racemosa var. racemosa Joseph P. Tracy 1941-3-9 16803 Humboldt Camp Grant, near junction of South Fork and main Eel River. 60 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
  UC1199043  Sanguisorba minor subsp. muricata Joseph P. Tracy 1942-7-9 17274 Humboldt Eureka; grown in garden fr seed of plants introd into stock ranges of Humboldt Co. as forage plant to compete against Klamath weed 30 Comment
  UC205466  Sanicula arctopoides Joseph P. Tracy 1919-4-27 5136 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC38937  Sanicula crassicaulis Linda M. Barker 1976-5-13 1485 Humboldt 3 mi. W of Arcata. Comment
  HSC39444  Sanicula crassicaulis Linda M. Barker 1976-6-1 1540 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1197100  Sanicula crassicaulis Joseph P. Tracy 1927-5-15 8034 Humboldt Trinity River Valley near the South Fork; Trinity River Valley 182 Comment
  JEPS1004  Sanicula graveolens Joseph P. Tracy 1929-7-4 8614 A Humboldt French Camp Ridge 1066 Comment
  UC1197086  Sanicula laciniata Joseph P. Tracy 1921-4-24 5454 Humboldt facing South Fork Eel River (Northern Coast Ranges, Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  JEPS993  Sanicula laciniata Joseph P. Tracy 1927-5-8 7961 Humboldt Miranda, along South Fork of Eel River South Fork Eel River; Miranda, South Fork Eel River 121 Comment
  HSC68996  Sanicula tracyi Jacqueline Greenleaf 1980-8-12 314 Humboldt Near Henry Ridge. 1128 Comment
  UC1222809  Sanicula tracyi Joseph P. Tracy 1950-4-20 18606 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); along Van Duzen River, opposite Buck Mountain 762 Comment
  HSC55291  Sanicula tuberosa Terry Griswold, Butler 1979-7-10 6264 Humboldt Near Board Camp Mountain 1372 Comment
  HSC73546  Sanicula tuberosa Gail Newton 1980-7-14 1471 Humboldt Near Last Chance Ridge. 1219 Comment
  UC535768  Satureja douglasii Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  UC1198877  Saxifraga californica Joseph P. Tracy 1922-5-29 6076 Humboldt head of South Yager Creek; Northern Coast Ranges, South Yager Creek 762 Comment
  UC1198879  Saxifraga californica Joseph P. Tracy 1927-4-2 7882 Humboldt facing South Fork Eel River ( Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  UC709459  Saxifraga marshallii Joseph P. Tracy 1941-3-26 16834 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UCSB29348  Saxifraga mertensiana Phelps, M. 1972-3-19 Humboldt Near Old Somerville Homestead, Elk Ridge 609 Comment
  POM117422  Scandix pecten-veneris Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC7443  Schoenoplectus americanus D. E. Anderson 1961-9-9 1792 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon. Comment
  UC1541346  Scirpus acutus var. occidentalis Harold E. Parks Aug 1934 5156 a Humboldt Dry Lagoon Comment
  UC1100779  Scirpus cernuus Malcolm A. Nobs, S. Galen Smith 1949-8-11 1347 Humboldt marshes on eastern side Big Lagoon; marshes on eastern side Big Lagoon Comment
  UCR122382  Scirpus microcarpus George K. Helmkamp, E. A. Helmkamp 2001-7-8 7001 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC38831  Scirpus microcarpus R. Sutherland 1976-8-13 20 .13876 Humboldt Redwood Creek, Whittemore Grove 87 Comment
  HSC79367  Scirpus microcarpus Kenneth Clark 1980-4-18 601 Humboldt Above Dead Man's Gulch, in upper meadow 213 Comment
  UCD139810  Scoliopus bigelovii R. N. Raynor 1935-5-22 s.n. Humboldt Ford Seward. 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
  JEPS29013  Sedum divergens J. P. Tracy 1950-8-8 19294 Humboldt watershed Tish-Tang-a-Tang Creek (just below and w of Trinity Summit, head of Croghan Hole); hd Croghan Hole, w of Trinity Summit, Tish-Tang-a-Tang Creek 1706 Comment
  UC1222181  Sedum divergens Joseph P. Tracy 1950-8-8 19294 Humboldt Granite Rock area Trinity Summit, Croghan Hole, Granite Rock area (Croghan Hole, Trinity Summit) 1676 Comment
  HSC99057  Sedum laxum subsp. flavidum Cara Witte 2008-7-11 873 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC64137  Sedum laxum subsp. heckneri J. O. Sawyer, J. P. Smith, R. J. Cole 1977-7-2 3053 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  HSC74192  Sedum laxum subsp. heckneri M. A. Baker 1980-7-23 3134 Humboldt Near Orleans Mtn. 1859 Comment
  HSC76350  Sedum laxum subsp. heckneri Denis Kearns 1981-7-21 299 Humboldt Near Whiteys Peak 1585 Comment
  HSC79346  Sedum laxum subsp. heckneri D. K. Imper 1983-6-17 Humboldt 1 mi. S of Cedar Camp (road to Mosquito Lake), on FS Rd. 12N12, also located along FS Rd. 12N12 4 mi. N 1159 Comment
  UC667085  Sedum laxum subsp. heckneri Joseph P. Tracy 1933-7-25 12899 Humboldt Grouse Mountain 1524 Comment
Read comments
Aug 17 2011
  CAS-BOT-BC64750  Sedum oregonense Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  UC524120  Sedum spathulifolium I. L. Wiggins 1932-6-18 5878 Humboldt mouth of Little River mouth Little River Comment
  JEPS25692  Sedum spathulifolium P. C. Hutchison 1961-5-22 2017 Humboldt along s side Willow Creek (n side hiway US 299, 2.6 mi e of Berry Summit); e of Berry Summit, s side Willow Creek Comment
  RSA0074768  Sedum spathulifolium Lyman Benson 1929-7-19 1858 Humboldt Mouth of Matole River. Comment
  RSA0081471  Sedum spathulifolium Anstruther Davidson s.n. Humboldt Eel River. Comment
  HSC28237  Sedum spathulifolium var. pruinosum Clifton Raymond Chesbrough 1973-6-19 100 Humboldt 0.5 mi. N of College Cove along coast Comment
  HSC59656  Sedum spathulifolium var. pruinosum Michael Dalke 1979-5-10 78 Humboldt Elk Head, 1/2 mi. W of Stagecoach Dr. at College Cove 30 Comment
  CHSC79937  Selaginella wallacei L. P. Janeway 1996-8-4 5061 Humboldt High North Coast Ranges. Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain. 1341 Comment
  CDA42469  Selaginella wallacei L. P. Janeway & B. Castro 1996-8-4 5061 Humboldt High North Coast Ranges; Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain Comment
  HSC56353  Senecio integerrimus var. major Griswold, Butler 1979-7-10 6324 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  CAS-BOT-BC364017  Senecio integerrimus var. major Alice Eastwood; John Thomas Howell 1937-6-23 4840 Humboldt 9 miles from Kneeland on road to Yager Comment
  CDA7630  Senecio jacobaea E. C. Whitney 1964-8-12 Humboldt Zuber property, Orick. 0 Comment
  UCD135620  Senecio minimus Gilfillan 1921-8-16 s.n. Humboldt Eureka. Comment
  UC1223152  Senecio sylvaticus Joseph P. Tracy 1948-8-8 18087 Humboldt Iaqua School House Comment
  UC1223153  Senecio sylvaticus Joseph P. Tracy 1941-8-17 16992 Humboldt near High Prairie (Bald Mountain); Bald Mountain Comment
  HSC58343  Senecio triangularis Overton, Butler 1979-8-2 12670 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA12546  Senecio triangularis C. B. Wolf 1934-7-2 s.n. Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  UC581709  Senecio triangularis Joseph P. Tracy 1930-7-16 8934 Humboldt in wet meadow at McKay Camp (South Fork Mountain); , McKay Camp 1676 Comment
  HSC59561  Senecio vulgaris Rick Lundquist 1979-4-27 46 Humboldt N Spit, across from Samoa boat ramp N of U.S. Coast Guard Station. 0 Comment
  CAS-BOT-BC85837  Sequoia sempervirens Doris K. Kildale 1926-8-23 2557 Humboldt North Fork of Eel River Comment
  CAS-BOT-BC85842  Sequoia sempervirens Joseph P. Tracy 1935-12-8 14764 Humboldt Near Korbel 304 Comment
  NY64518  Sequoia sempervirens R. R. Halse 1989-5-13 3842 Humboldt Along U.S. Highway 101, 2 miles south of Weott 108 Comment
  SEINET5334844  Sequoia sempervirens W. D. Billings 1940-6-28 1356 Humboldt 1/4 mile north of Trinidad Comment
  UCD92603  Setaria parviflora P. Haggard; G. Leppig 1998-2-4 s.n. Humboldt east of Arcata on North Bank Rd. Above Mad River immediately east of Azalea Reserve. Comment
  HSC102927  Sidalcea M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 885 Humboldt Patterson Meadows 1555 Comment
  JEPS50089  Sidalcea diploscypha Lincoln Constance 1934-5-23 613 Humboldt sw slope Upper end Look Prairie Bull Creek Region, South Fork Eel River, Look Prairie (South Fork Eel River, Bull Creek Region) 365 Comment
  CAS-BOT-BC205567  Sidalcea malachroides Doris K. Kildale 1926-5-16 1837 Humboldt Horse Mountain cut-off 792 Comment
  JEPS67224  Sidalcea malachroides Joseph P. Tracy 1918-7-1 4964 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, Eel River from South Fork to Scotia 60 Comment
  BLMAR281  Sidalcea malviflora subsp. patula Jennifer Anthony-Wheeler 1999-5-28 281 Humboldt King range, growing along windy pt rd about 1/2 way to the spring exclosure 140 Comment
  UC902193  Sidalcea malviflora subsp. patula Joseph P. Tracy 1946-5-30 17546 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House); e of Carlotta 60 Comment
  HSC104426  Sidalcea malviflora subsp. patula Bianca Hayashi 2013-6-13 Humboldt South of Bald Mountain Comment
  HSC99084  Silene bernardina Cara Witte 2008-8-6 1014 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  HSC103725  Silene bolanderi M. R. Mesler, C. Wilson 2010-6-18 825 Humboldt Along Hwy 36 near pmm 32.53 771 Comment
  UC668100  Silene californica Joseph P. Tracy 1935-6-23 13997 Humboldt French Camp Ridge 1066 Comment
  POM264848  Silene californica Lincoln Constance, A. A. Beetle 1940-5-16 2610 Humboldt Coastal bluffs above Alton. Comment
  CAS-BOT-BC174879  Silene campanulata subsp. glandulosa Volney Rattan 1883-1-1 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC384424  Silene coronaria Philip A. Munz 1952-6-27 17799 Humboldt Boise Creek Public Camp west of Willow Creek 365 Comment
  CAS-BOT-BC387078  Silene gallica Doris K. Kildale 1927-5-15 3166 Humboldt Cape Mendocino Comment
  UC1198368  Silene gallica Joseph P. Tracy 1930-5-24 8700 Humboldt on gravel bar of North Fork Mad River (at Riverside); North Fork of Mad River, at Riverside 30 Comment
  HSC36645  Silene gallica J. D. Ackerman 1974-5-25 261 Humboldt Trinidad, South Trinidad Beach, S of Trinidad Head. Comment
  HSC84003  Silene gallica L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 225 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  CAS-BOT-BC181243  Silene hookeri subsp. bolanderi Tom Jimerson 1983-5-26 s.n. Humboldt Lower Trinity Road, roadside cutbank on the road to Brush Mountain Lookout off Friday Ridge Rd. - Six Rivers National Forest Comment
  CAS-BOT-BC389056  Silene laciniata subsp. californica Carl B. Wolf 1927-8-28 1175 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  RSA43852  Sisymbrium altissimum H. M. Pollard 1947-8-6 s.n. Humboldt Roadside W of Orleans. Comment
  HSC45084  Sisymbrium officinale R. Sutherland 1978-4-25 1 .25478 Humboldt Mouth of Buck Creek 21 Comment
  UC249552  Sisyrinchium bellum Joseph P. Tracy 1921-4-24 5461 Humboldt Phillipsville facing South Fork of Eel River; Northern Coast Ranges 121 Comment
  HSC59467  Sisyrinchium bellum M. A. Ericksen 1979-5-13 284 Humboldt Chezem Rd., 0.2 mi. W of Hwy. 299 Comment
  SD88388  Sisyrinchium californicum Darley F. Howe 1972-6-30 Humboldt Trinidad. Comment
  UCR12945  Sisyrinchium californicum Margariet Wetherwax 1972-9-21 s.n. Humboldt Big Lagoon, just north of Patrick's Point State Park 6 Comment
  UC15050  Smilacina racemosa Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5497 Humboldt Camp Grant to Pepperwood; North Coast Ranges Comment
  JEPS62151  Smilacina stellata Lincoln Constance 1934-6-2 783 Humboldt Bull Cr. road to mouth of Bull Cr. (and up creek); South Fork Eel River, Bull Creek Region Comment
  UCR45836  Smilacina stellata Barry Silver 1986-4-23 537 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC93540  Solanum americanum Spadoni 1997-12-2 Humboldt 1335 J St., Eureka 15 Comment
  HSC20461  Solanum douglasii John Warner Hosking 1968-10-10 Humboldt Clam Beach Comment
  HSC73842  Solanum parishii Gail Newton 1980-6-7 137 Humboldt Near Brush Mtn. 1128 Comment
  UC154016  Solanum physalifolium var. nitidibaccatum J. P. Tracy 1909-8-10 3074 Humboldt immediate vicinity of Eureka 0 Comment
  HSC25425  Solanum physalifolium var. nitidibaccatum J. P. Smith 1972-11-12 5827 Humboldt Arcata, adjacent to Mad River Hospital Comment
  UC1196158  Solanum sarrachoides J. P. Tracy Sept. 1907 2605 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS12167  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  JEPS12169  Solanum umbelliferum Lincoln Constance 1934-6-2 788 Humboldt Bull Creek Region, South Fork Eel River, Bull Creek road to mouth of Bull Creek, and up Bull Creek South Fork Eel River; Bull Creek Region, , Bull Creek Comment
  POM280569  Solanum umbelliferum Lyman D. Benson 1928-7-12 463 Humboldt Weott Ranger Station. 61 Comment
  RSA47125  Solidago canadensis subsp. elongata Doris K. Kildale 1928-8-17 1211 Humboldt Trinity Summit 1829 Comment
  CAS-BOT-BC365432  Solidago elongata Marcus E. Jones 1931-7-12 29135 Humboldt Alton Comment
  JEPS32394  Solidago elongata Lincoln Constance 1934-6-25 925 Humboldt on Redwood Highway 4 mi n of Dyerville and n boundary Humboldt Redwood Park (Englewood, Bull Creek Region, South Fork Eel River); South Fork Eel River, Bull Creek Region, Englewood Comment
  CAS-BOT-BC365670  Solidago spathulata Ira L. Wiggins 1930-6-25 4616 Humboldt 2 miles north of Samoa Comment
  HSC12310  Solidago spathulata Wendell Wood 1970-10-7 308 Humboldt Old Hwy. 101, E side of Freshwater Lagoon 46 Comment
  HSC25959  Solidago spathulata Thomas W. Nelson 1970-11-7 288 Humboldt At the foot of Murray Rd. at McKinleyville Comment
  HSC6200  Solidago spathulata D. K. Smith 1968-11-9 61 Humboldt Mad River Rd. Comment
  UCR122383  Solidago spathulata var. spathulata George K. Helmkamp, E. A. Helmkamp 2001-7-8 7000 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  UCSB30614  Solidago velutina subsp. californica Edwards, David 1974-8-1 Humboldt About 50 ft. N. of junction of the Mad River and Puter Creek, on the east bank of Mad River, ca. 2 mi. SW of Korbel Comment
  CHSC52926  Soliva sessilis L. P. Janeway; Ken Berg 1984-4-11 721 Humboldt On the North Spit of Humboldt Bay; at the turnout along Samoa Rd across from the boat ramp just north of he Coast Guard Sta. 3 Comment
  UCD136120  Soliva sessilis Linda M. Barker 1976-4-13 1385 Humboldt 3 miles west of Arcata. Comment
  HSC35010  Soliva sessilis J. O. Sawyer 1975-5-20 2695 Humboldt 1445 Chester Ave., Sunnybrae Comment
  HSC67881  Sonchus asper J. P. Smith 1973-5-26 6873 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA430519  Sonchus oleraceus Lyman Benson 1929-7-12 1796 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  JEPS32230  Sparganium emersum var. emersum Joseph P. Tracy 1926-8-22 7771 Humboldt pond between Little Van Duzen River and Dinsmore's; Northern Coast Ranges 670 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
  CAS-BOT-BC389921  Spergula arvensis Robert F. Thorne; P. Everett 1965-8-8 35265 Humboldt N edge of Eureka, E of Hwy. 101 4 Comment
  HSC4233  Spergula arvensis W. Lanphere 1937-4-20 Humboldt College Campus Comment
  HSC90265  Spergularia canadensis Jean Hanson 1980-5-24 70 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka. W end of island Comment
  HSC43208  Spergularia rubra R. Sutherland 1976-8-18 8 .18876 Humboldt 183 Comment
  CAS-BOT-BC149613  Spiraea douglasii Malcom A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  CAS-BOT-BC149619  Spiraea douglasii Joseph P. Tracy 1937-7-17 15435 Humboldt Eureka 30 Comment
  UC275298  Spiraea douglasii R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  HSC36653  Spiranthes romanzoffiana J. D. Ackerman 1975-8-2 618 Humboldt Hwy. 101 between Eureka and Arcata, along Humboldt Bay across from Murray Field. Comment
  CHSC802  Stachys ajugoides var. rigida 1929-5-6 Humboldt Comment
  UC1239722  Stachys ajugoides var. rigida Joseph P. Tracy 1942-7-1 17365 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  UCLA71110  Stachys ajugoides var. rigida C. Epling Aug 1933 Humboldt near Big Tree Comment
  UCLA71140  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15937 Humboldt vicinity Carlotta 30 Comment
  UC1239723  Stachys arvensis H. B. Tucker 1935-3-20 Humboldt Moron Ranch Arcata Bottom 9 Comment
  UC538020  Stachys arvensis Lyle W. Smith 1934-11-14 Humboldt Arcata Comment
  UC25942  Stachys chamissonis H. M. Hall 1899-10-17 Humboldt Arcata Comment
  HSC14416  Stachys mexicana D. E. Anderson 1961-8-11 1727 Humboldt E of Humboldt State College campus. 30 Comment
  RSA167436  Stachys rigida subsp. quercetorum Joseph P. Tracy 1950-6-8 18741 Humboldt Near Petrolia. Hills between town and ocean. 30 Comment
  HSC59118  Stachys rigida var. quercetorum Terry Roth 1979-5-20 67 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  UC668076  Stellaria crispa Joseph P. Tracy 1930-7-16 8926 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC75438  Stellaria media J. O. Sawyer 1980-7-18 3580 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  CAS-BOT-BC375781  Stephanomeria virgata J. Clausen 1932-9-19 705 Humboldt Between Miranda and Redway, 13.2 miles south of Weott Comment
  BLMAR45  Stipa lemmonii Brad Barr June, 1982 45 Humboldt King range, Spanish Ridge, south facing slope Comment
  HSC74305  Streptanthus tortuosus M. A. Baker 1980-7-24 3205 Humboldt Near Orleans Mtn. 1625 Comment
  UC229826  Streptanthus tortuosus Joseph P. Tracy 1922-9-3 6106 Humboldt rocky bluffs at Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  UC1198798  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1913-6-17 4165 Humboldt near summit Northern Coast Ranges, Buck Mountain 1524 Comment
  JEPS54017  Streptanthus tortuosus var. suffrutescens Chesnut and Drew 1888-1 Humboldt Comment
  HSC102058  Streptopus amplexifolius M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 963 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  HSC99368  Streptopus amplexifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 17 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC519056  Streptopus amplexifolius Greg de Nevers 2001-4-19 12257 Humboldt Fern Canyon, Prairie Creek, Redwoods State Park 91 Comment
  UC154162  Swertia albicaulis var. nitida Harley P. Chandler Jun 1901 1383 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC58360  Swertia radiata Overton, Butler 1979-8-2 12712 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC269575  Symphoricarpos albus var. laevigatus Henry M. Pollard 1956-10-14 s.n. Humboldt Across Klamath River from Orleans Hotel Comment
  JEPS12877  Symphoricarpos albus var. laevigatus W. L. Jepson 1932-7-28 16434 Humboldt Dyerville Comment
  HSC32242  Symphoricarpos mollis J. O. Sawyer 1970-6-24 2236 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC58791  Symphyotrichum bracteolatum Overton, Butler 1979-7-31 11427 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC38332  Symphyotrichum chilense Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  UC1174865  Symphyotrichum chilense P. C. Everett and E. K. Balls 1959-10-25 23960 Humboldt 1/4 mi w of, on hwy 299 to Arcata Willow Creek 502 Comment
  UC205155  Symphyotrichum hendersonii Joseph P. Tracy 1919-9-18 5224 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  UC175193  Symphyotrichum subspicatum Joseph P. Tracy 1913-9-9 4396 Humboldt Big Lagoon 30 Comment
  UC1541367  Synthyris reniformis Harold E. Parks March 1934 4831 Humboldt Spruce Cove; Trinidad Comment
  SD42343  Tanacetum vulgare Carl B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, south side along Redwood Highway 6 Comment
  RSA167418  Taraxacum officinale Joseph P. Tracy 1943-4-10 17415 Humboldt Eureka Comment
  UC1223145  Taraxacum officinale Joseph P. Tracy 1943-4-10 17415 Humboldt Eureka Comment
  HSC79416  Taraxacum officinale Kenneth Clark 1980-3-1 507 Humboldt On access trail to Dead Man's Gulch 30 Comment
  HSC59852  Tauschia kelloggii M. A. Baker 1979-7-6 1007 Humboldt Just past the 4 mi. marker on Eyesee Rd. from Hwy. 96 Comment
  HSC45931  Taxus brevifolia Jerome Peterson 1978-4-29 9 Humboldt Along bank of Redcap Creek 1.0 mi. down Millgap Rd. from Redcap Rd. Comment
  HSC79487  Tellima grandiflora Kenneth Clark 1980-3-23 536 Humboldt Along S Fork of Dead Man's Gulch 69 Comment
  SD88395  Tellima grandiflora Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville Comment
  UC154054  Tellima grandiflora Joseph P. Tracy 1901-4-26 1046 Humboldt Humboldt Hill; Northern Coast Region, Humboldt Bay Region 0 Comment
  UC162827  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1906-6-24 2501 Humboldt near Fields Landing; Northern Coast Region, Region about Humboldt Bay, Humboldt H 0 Comment
  CAS-BOT-BC77704  Thelypteris Joseph P. Tracy 1937-7-25 15556 Humboldt Happy Camp Mountain (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  HSC101439  Thelypteris nevadensis Cara M. Witte Aug 2009 1070 Humboldt Grouse Mountain. Forest Service Road 4N32, .25 mile south of intersection with 5N04 1466 Comment
  HSC103126  Thelypteris nevadensis M. Mesler 2009-7-19 810 Humboldt South Fork Mtn. Along FS 1, 11.8 miles from intersection with rd 4N12 1486 Comment
  CAS-BOT-BC5391  Thlaspi californicum Volney Rattan 1882-6-1 s.n. Humboldt at Kneeland Prairie Comment
  UC1586873  Thlaspi montanum var. montanum Juha Pykala and D. H. Norris 1987-5-19 710 Humboldt Horse Mountain Road at intersection with ski-lift; Horse Mountain Road 1400 Comment
  HSC1301  Thuja plicata Allan R. Marshall 1962-5-20 23 Humboldt Blue Lake along Hwy. 299 46 Comment
  POM299149  Thuja plicata H. E. Parks 1932-7-25 1139 Humboldt Camp 21 , Hammond Lumber Company, Trinidad 152 Comment
  SBBG26950  Thuja plicata C. B. Wolf 1930-10-25 1020 Humboldt Blue Lake-Willow Crk Rd (Lord Ellis Rd); 2 mi above Blue Lake 243 Comment
  SBBG372  Thuja plicata J. W. Howe 1938-3-30 Humboldt Humboldt County [no specific locality] Comment
  CAS-BOT-BC88328  Thysanocarpus curvipes Lincoln Constance; Reed C. Rollins 1942-5-12 2884 Humboldt Klamath-Siskiyou Region. Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  HSC55614  Tiarella trifoliata var. unifoliata Overton, Butler 1979-7-23 9503 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA191949  Tiarella trifoliata var. unifoliata R. F. Thorne 1957-9-2 18998 Humboldt Burlington State Park, just S of Weott. Comment
  HSC64854  Tolmiea diplomenziesii J. P. Smith 1973-5-26 6854 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SD148260  Torilis arvensis G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6986 Humboldt North coast redwood area; California Highway 36, along the Van Duzen River, 19.6 miles east of U. S. 101. 136 Comment
  UC906658  Torilis nodosa Joseph P. Tracy 1946-6-15 17558 Humboldt Berry's Mountain on Trinity Highway east of Redwood Creek 609 Comment
  HSC3140  Toxicodendron diversilobum R. E. Thill 1965-5-1 26 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. Comment
  UCD116958  Toxicodendron diversilobum Linda M. Barker 1976-9-3 1697 Humboldt 3 miles west of Arcata. Comment
  UC1199328  Tracyina rostrata Joseph P. Tracy 1938-6-9 15975 Humboldt about 1 mi sw Alder Point (town) 304 Comment
  SEINET11800250  Tracyina rostrata J. P. Tracy 1950-1 18859 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 213 Comment
  JEPS60737  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain Comment
  UCD96048  Trautvetteria caroliniensis Joseph P. Tracy 1948-9-5 18169 Humboldt Trinity Summit Range. Happy Camp Mt. 1280 Comment
  UC1225747  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1948-9-5 18169 Humboldt Trinity Summit Range, at Happy Camp Mountain Happy Camp Mountain; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC517423  Triantha occidentalis subsp. occidentalis Doris K. Kildale 1925-8-16 1185 Humboldt Trinity Summit 1917 Comment
  UC535718  Trichostema laxum Eleanor Armstrong 1934-7-15 1130 Humboldt Richardson Grove 121 Comment
  CDA40991  Trichostema laxum E. C. Whitney 1965-9-2 s.n. Humboldt [no additional data] 0 Comment
  RSA183505  Trientalis latifolia D. E. Anderson 1965-5-8 3651 Humboldt 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  RSA460856  Trientalis latifolia Jane Turner, Francis M. Ball 1962-7-10 1139 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  HSC17938  Trientalis latifolia Frances Oldridge 1946-1 Humboldt Freshwater Comment
  HSC41277  Trientalis latifolia Brad Klipfel 1974-6-25 433 Humboldt Horse Mtn.; NW side of towers Comment
  RSA46837  Trientalis latifolia Doris K. Kildale 1926-6-6 s.n. Humboldt quik as Davidsons Comment
  UCD117587  Trientalis latifolia D. Sanchez-Mata; S. Rivas-Martinez, M. Costa, and M. Ladero 1998-6-10 s.n. Humboldt Trinidad-Patricks Point. 25 Comment
  UC906702  Trifolium albopurpureum var. dichotomum Harold E. Parks and Joseph P. Tracy 1942-5-16 11555 Humboldt vicinity Garberville 152 Comment
  UC1197241  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1914-6-14 4500 Humboldt near Hydsdale (mouth of Yager Crekk); Northern Coast Ranges 60 Comment
  CDA4307  Trifolium angustifolium J. R. Keck Jr., W. Simas 1973-5-3 Humboldt Bear River Road, between Cook & Morrison. 0 Comment
  SD104865  Trifolium arvense Darley Howe 1979-6-25 5195 Humboldt one mile west of Willow Creek, highway 299 Comment
  HSC71168  Trifolium bifidum Thomas W. Nelson 1977-5-30 3414 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  UC16435  Trifolium bifidum var. decipiens Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5342 B Humboldt Harris Comment
  UC1223502  Trifolium bifidum var. decipiens Joseph P. Tracy 1939-4-29 16256 Humboldt 2 mi below Orleans (nw side); Klamath River 121 Comment
  HSC71452  Trifolium campestre J. P. Smith 1973-5-26 6811 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC303194  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1925-5-17 6972 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC77921  Trifolium dubium L. P. Janeway, Paul Wilson 1984-5-7 769 Humboldt On the N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  UC495653  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-7-6 8835 C Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1197211  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-29 8822 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges Comment
  UC302111  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1926-7-5 7729 B Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  HSC46037  Trifolium fucatum Catherine Chin 1978-5-5 56 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  HSC48612  Trifolium fucatum Mark Flippo 1978-5-18 61 Humboldt Hwy. 101 N jct. with Giuntoli Lane Comment
  RSA168896  Trifolium fucatum var. fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge, one mil east of Cape Mendocino. 152 Comment
  UC495645  Trifolium gracilentum Joseph P. Tracy 1932-4-24 9810 Humboldt betw Miranda and Redway (South Fork of Eel River); Northern Coast Ranges 91 Comment
  UC1197198  Trifolium gracilentum J. P. Tracy 1905-4-16 2162 1/2 Humboldt Ocean View Cemetary Eureka 0 Comment
  UC1197048  Trifolium hybridum J. P. Tracy 1901-6-16 1158 Humboldt immediate vicinity Eureka 0 Comment
  HSC102540  Trifolium longipes subsp. elmeri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1526 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UCD111290  Trifolium longipes subsp. oreganum Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  HSC96259  Trifolium longipes subsp. oreganum Laurel Goldsmith, Wanda Naylor 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on Titlow Hill Rd. 1240 Comment
  HSC97235  Trifolium longipes subsp. oreganum Bryan Atkinson, Jenny Lynn Hutchinson 2007-6-4 1 Humboldt About 7.4 mi. S of Hwy. 299 on FS Rd. NF1, near Cold Springs Camp 1220 Comment
  UC1223370  Trifolium longipes var. hansenii Joseph P. Tracy 1950-8-8 19298 Humboldt Croghan Hole Trinity Summit 1676 Comment
  HSC100537  Trifolium microcephalum Carl C. Marshall May 1886 235 Humboldt Near Trinidad. Comment
  HSC45138  Trifolium microcephalum R. Sutherland 1978-5-25 1 .25578 Humboldt Near the Mattole River 288 Comment
  RSA195475  Trifolium microdon C. R. Gunn 1963-6-2 2690 Humboldt Two miles SE of Arcata Comment
  SEINET4178759 Image available Trifolium obtusiflorum Unknown 1932-6-14 10153 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  SEINET7097948  Trifolium obtusiflorum A. G. Vestal 1937-1 s.n. Humboldt Ca. 14 miles south of Garberville on Route 101. UTM Zone 10, 433343 mE, 4422303 mN. Lat. 39 57' 00ao N, Long. 123 46' 49ao W NAD 27 (Converted to WGS84 decimal degrees) Comment
  UC1197503  Trifolium obtusiflorum Joseph P. Tracy 1903-5-24 1916 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  HSC77398  Trifolium pratense L. P. Janeway 1983-5-3 259 Humboldt Along E Fence of HSU playing field 21 Comment
  HSC23732  Trifolium repens Tim Baroni 1971-7-6 117 Humboldt 8 mi. S of Ferndale on Mattole Rd. Comment
  HSC100539  Trifolium repens Carl C. Marshall May 1886 205 Humboldt Everywhere. Comment
  BLMAR745  Trifolium subterraneum Jennifer Wheeler 2015-5-18 745 Humboldt King range, strawberry rock grazing allotment down windy point 243 Comment
  JEPS4134  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8573 Humboldt Miranda Northern Coast Ranges, South Fork Eel River 121 Comment
  UC175673  Trifolium variegatum var. variegatum Joseph P. Tracy 1913-6-20 4232 Humboldt n w slope Buck Mtn (lower foothills); Northern Coast Ranges 762 Comment
  JEPS4131  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  HSC15189  Trifolium wormskioldii S. J. Moore 1965-5-10 33 Humboldt Near mouth of Little River Comment
  CHSC68791  Triglochin maritima Vernon Oswald 1997-6-5 8531 Humboldt Arcata Oxidation Ponds on South G St., south of Hwy. 255. 6 Comment
  UC1130595  Triglochin maritima H. S. Yates 1936-6-23 5860 Humboldt 1 mi w Bayside; Eureka Quadrangle Comment
  HSC97549  Triglochin striata Ivy Watson 2008-9-20 30 Humboldt N of mouth of Mad River, along small tributary E of sand dunes 4 Comment
  UC175282  Trillium albidum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3616 Humboldt near Hydesville Hydesville; Northern Coast Region 30 Comment
  CAS-BOT-BC519078  Trillium angustipetalum Doris K. Kildale 1926-3-27 1659 Humboldt Wiregrass Prairie in Bald Hills Comment
  CHSC2321  Trillium ovatum V. Holt 1933-4-11 Humboldt Comment
  CHSC24834  Trillium ovatum A. D. Launer 1976-4-11 1 Humboldt On e hillside of Blocksburg Cemetery, ca. 30 yds s of Cemetery Rd, 200 yds w of Alderpoint Rd. in Blocksburg. 464 Comment
  UC1197814  Trillium ovatum unknown 1943-4-2 Humboldt Eureka Comment
  HSC72575  Triphysaria eriantha J. P. Smith, J. O. Sawyer 1976-5-2 8637 Humboldt Redwood Valley Comment
  UC582568  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1932-5-1 9888 Humboldt vicinity Garberville 121 Comment
  HSC20856  Triphysaria eriantha subsp. eriantha Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  JEPS26158  Triphysaria eriantha subsp. eriantha Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3633 Humboldt Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  HSC40372  Triphysaria pusilla Linda M. Barker 1976-4-30 1425 Humboldt 3 mi. W of Arcata Comment
  UC1222456  Triphysaria pusilla Joseph P. Tracy 1927-5-8 7986 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  HSC23103  Triphysaria pusilla D. E. Anderson 1965-5-6 3609 Humboldt Along Hwy. 299 Comment
  UC552798  Trisetum canescens Joseph P. Tracy 1935-7-30 14359 Humboldt Salmon Summit 1767 Comment
  UC905633  Trisetum canescens David D. Keck 1948-6-2 6006 Humboldt 4 mi w Willow Creek (near boundary of Six River National Forest, e side of Rocky Ridge, e of Berry's summit); Rocky Ridge 457 Comment
  SEINET10605778  Trisetum canescens Joseph P. Tracy 1901-5-30 Tracy 1109 Humboldt At Eureka. Comment
  CAS-BOT-BC193513  Trisetum cernuum Harley P. Chandler 1901-5-1 1176 Humboldt Humboldt Bay 30 Comment
  UC1714630  Trisetum cernuum Joseph P. Tracy 1926-6-13 7599 Humboldt near Blue Lake (Liscom Hill Road); North Coast Ranges 152 Comment
  UC40083  Trisetum cernuum Harley P. Chandler May, 1901 1176 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  HSC76431  Triteleia bridgesii Teresa Prendusi 1981-7-9 232 Humboldt Near Cedar Camp 1256 Comment
  UC15026  Triteleia bridgesii Harley P. Chandler June, 1901 1344 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  JEPS58049  Triteleia laxa Lincoln Constance 1934-5-29 710 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  SEINET181190  Triteleia laxa Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15085 Humboldt 5 miles north of Garberville Comment
  UCD139410  Triteleia laxa Joseph P. Tracy 1942-6-15 17129 Humboldt Humboldt County Englewood, Natural prairie, near Redcrest resort. 91 Comment
  CAS-BOT-BC526353  Triteleia laxa Ella Dales Cantelow 1939-6-4 3916 Humboldt 11.3 miles north of Garberville, road to Alder Point Comment
  HSC23715  Triteleia laxa Tim Baroni 1971-6-25 36 Humboldt 8 mi. E of Petrolia Comment
  RSA183021  Triteleia laxa Lee W. Lenz 1966-5-24 24657 Humboldt W of Berry Summit, US 299. Comment
  CAS-BOT-BC85897  Tsuga heterophylla Doris K. Kildale 1927-4-10 3078 Humboldt Prairie Creek in deep woods Comment
  UCD135135  Tsuga heterophylla M. Van Rensselaer 1938-3-31 s.n. Humboldt Humboldt County. Exact location not specified. Comment
  UCD67633  Tsuga heterophylla D. Sanchez-Mata 1996-6-27 s.n. Humboldt Blue Lake. Mad River. 175 Comment
  UC1196280  Umbellularia californica Joseph P. Tracy 1924-8-31 6844 Humboldt Klamath River at Bluff Creek Klamath River; Northern Coast Ranges, , Bluff Creek 91 Comment
  POM160273  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt Around Humboldt Bay. Elk River Valley. 30 Comment
  HSC102021  Vaccinium cespitosum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 922 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC55180  Vaccinium cespitosum Gilbert Muth 1979-8-1 12191 Humboldt Near N Trinity Mtn. 1798 Comment
  UC1197767  Vaccinium cespitosum J. P. Tracy 1900-8-26 928 Humboldt immediate vicinity Eureka; , Ricks Prairie 0 Comment
  UCD118069  Vaccinium membranaceum Joseph P. Tracy 1942-6-23 17243 Humboldt Trinity Summit, near Box Camp. 1524 Comment
  HSC95645  Vaccinium ovatum Andrea Pickart 2002-4-5 41 Humboldt Lanphere Dunes 15 Comment
  POM285980  Vaccinium ovatum Lyman Benson 1929-7-16 1938 Humboldt Weott Ranger Station. Comment
  UC1193356  Vaccinium ovatum K. Cuff 1950-10-9 128 Humboldt 2.5 mi se Honeydew (Quad 28D1) 304 Comment
  UC154184  Vaccinium ovatum P. E. Goddard 1901-6 20 Humboldt Hupa Comment
  HSC31220  Vaccinium parvifolium D. E. Anderson 1972-6-20 5729 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC7924  Vaccinium parvifolium P. Markle 1962-5-3 18 Humboldt Arcata Community behind HSU campus 30 Comment
  SEINET3107075  Vaccinium parvifolium Steve Selva, Roger Jensen 1974-8-28 97 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  HSC32256  Vaccinium uliginosum J. O. Sawyer 1970-6-24 2286 Humboldt Near Waterdog Lakes 1860 Comment
  POM59403  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 s.n. Humboldt Scotia bluff, along Eel River from South Fork to Scotia. 61 Comment
  HSC63004  Vancouveria hexandra David Wheeler 1979-5-17 116 Humboldt Stagecoach Rd., 1 mi. from Post Office in Trinidad Comment
  JEPS33026  Vancouveria hexandra W. L. Jepson 1902-6 1912 Humboldt Pepperwood; beneath redwoods Comment
  HSC99653  Vancouveria planipetala Jimerson, J. Pageau 1979-6-13 544 Humboldt Near Onion Lake, close to the town of Orleans 549 Comment
  HSC21217  Veronica persica D. K. Smith 1968-1-16 1 Humboldt 0.5 mi. S of Blue Lake on West End Rd. Comment
  JEPS25055  Veronica scutellata Joseph P. Tracy 1921-6-12 5824 Humboldt Butler Valley; Northern Coast Ranges, Butler Valley 152 Comment
  HSC100686  Veronica serpyllifolia Carl C. Marshall Apr 1885 74 Humboldt Ditches about the bay. Comment
  HSC102112  Veronica serpyllifolia subsp. humifusa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1016 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC98838  Vicia americana var. americana Cara Witte 2008-7-16 914 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1197480  Vicia americana var. americana Joseph P. Tracy 1935-7-27 14308 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  JEPS66180  Vicia gigantea W. L. Jepson 1902-8-4 13640 Humboldt near Petrolia; Humboldt Coast Comment
  HSC100118  Vicia sativa David Adams 1960-7-15 Humboldt Near Fort Humboldt monument, Eureka 15 Comment
  JEPS29847  Vicia sativa subsp. nigra Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7837 Humboldt about 1 mi w of Carlotta (or 1/2 mi e of Hydesville) Comment
  UC709406  Vicia sativa subsp. nigra Joseph P. Tracy 1934-6-23 13248 Humboldt Arcata Bottom 15 Comment
  HSC15255  Vicia sativa subsp. nigra W. F. Nickel 1965-4-28 Humboldt On S side of Biological Science Building, near baseball field Comment
  CAS-BOT-BC94771  Vicia tetrasperma R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 831 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  UC1562619  Vicia tetrasperma Barbara Ertter with Thomas J. Delendick 1987-5-16 6912 Humboldt ca 8 mi e Arcata (Hwy 299 roadside, 9.5 mi w of Lord Ellis summit) Comment
  HSC71614  Vicia tetrasperma J. P. Smith 1973-5-26 6832 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA170273  Vicia tetrasperma Joseph P. Tracy 1916-5-16 4688 Humboldt Stitz Creek. Along Eel River from South Fork to Scotia. 61 Comment
  POM148460  Vicia villosa J. B. Feudge 1923-7-22 264 Humboldt Fortuna. 15 Comment
  HSC3229  Vinca major N. R. Waite 1965-5-18 35 Humboldt Along Hwy. 101, W of Humboldt State College campus. Comment
  CAS-BOT-BC263946  Viola adunca L. B. Kildale 1930-5-11 9543 Humboldt Bald Hills 853 Comment
  HSC91932  Viola adunca E. Mackey 1986-5-13 Humboldt Patrick's Point State Park; Palmer's Point Comment
  HSC98454  Viola adunca Brad Klipfel 1973-4-28 11 Humboldt Along Canyon Creek SW of Korbel Comment
  HSC22846  Viola cuneata D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5053 Humboldt ca. 6 miles W of Hoopa, along road from Redwood Creek to Hoopa Comment
  CHSC97987  Viola hallii J. Breton; A. Livingston 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. south of Hwy 299 on NF1. 1357 Comment
  HSC97502  Viola hallii C. Witte 2007-5-8 3 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  UC502965  Viola hallii Joseph P. Tracy 1927-6-12 8125 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  JEPS80008  Viola lobata subsp. integrifolia Joseph P. Tracy 1937-7-2 15408 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  RSA80528  Viola ocellata Joseph P. Tracy 1938-5-1 15731 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  SEINET11993509  Viola ocellata F. H. Utech 1986-1 86 -388 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  CAS-BOT-BC270153  Viola palustris M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  UC164807  Viola palustris Joseph P. Tracy 1904-7-31 2126 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC21878  Viola praemorsa subsp. praemorsa Greg Bos 1965-5-15 272 Humboldt 2 mi. W of Berry Summit along US 299 701 Comment
  JEPS50373  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC164820  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1908-6-9 2667 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC32282  Viola purpurea subsp. purpurea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5615 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  JEPS50475  Viola sheltonii Joseph P. Tracy Jul 16 1930-Jul 19 1930 8910 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC668241  Viola sheltonii Joseph P. Tracy 1933-7-16 12769 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  UCD60331  Vitis californica H. Olmo 1934-9-30 s.n. Humboldt Along highway in Blue Lakes. Comment
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Jun 14 2012
  HSC9828  Vulpia bromoides N. R. Waite 1965-5-19 37 Humboldt W edge of Humboldt State University campus. Comment
  SEINET7295259 Image available Vulpia microstachys var. pauciflora Joseph P. Tracy 1942-1 17224 Humboldt Trinity Summit; Ridge top one mile west of Mud Springs 1158 Comment
  HSC39399  Vulpia myuros D. E. Anderson, J. P. Smith 1971-6-28 - 1253 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC9923  Vulpia myuros R. D. Modafferi 1965-5-13 72 Humboldt 1.6 mi. N of Trinidad on Trinity St. 305 Comment
  CAS-BOT-BC185938  Vulpia octoflora var. octoflora Joseph P. Tracy 1929-7-4 8618 Humboldt French Camp Ridge 1066 Comment
  HSC24380  Whipplea modesta J. O. Sawyer 1970-6-24 2242 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1198904  Whipplea modesta Joseph P. Tracy 1949-5-8 18294 Humboldt open flat by old Strong's District Schoolhouse (5 mi e of town); Carlotta 60 Comment
  HSC20442  Whipplea modesta Yarick 1960-8-5 Humboldt M&M, 7 mi., Krueger Creek Comment
  UCD136104  Woodwardia fimbriata K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC100451  Wyethia angustifolia Carl C. Marshall Jul 1886 261 Humboldt Coast Range. Comment
  UC302182  Wyethia longicaulis Joseph P. Tracy 1926-6-20 7658 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  UC582640  Wyethia longicaulis Joseph P. Tracy 1932-6-26 10253 Humboldt Valley of South Yager Creek 762 Comment
  UC604675  Wyethia longicaulis Joseph P. Tracy 1938-7-7 16041 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC383636  Xanthium spinosum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  JEPS37537  Xanthium strumarium Lincoln Constance 1934-6-12 865 Humboldt n bank South Fork Eel River (Dyerville, Bull Creek Road, Bull Creek Region); n bank South Fork Eel River, Bull Creek Region, Dyerville Comment
  HSC37690  Xanthium strumarium R. Sutherland 1976-8-13 31 .13876 Humboldt In mouth of Redwood Creek at South Fork of Eel River. 88 Comment
  HSC15733  Xerophyllum tenax D. E. Anderson 1967-6-9 4355 Humboldt Unsurveyed area around King Peak, 6 mi. S of Honeydew 915 Comment
  HSC56963  Xerophyllum tenax Overton, Butler 1979-7-23 9481 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  CDA36451  Xerophyllum tenax CDFA Staff 1978-6-15 Humboldt 0 Comment
  HSC40300  Zigadenus micranthus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2901 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC15747  Zigadenus micranthus D. E. Anderson 1965-5-15 3696 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. 198 Comment
  RSA183643  Zigadenus micranthus D. E. Anderson 1965-6-1 3779 Humboldt Near Brush Mountain lookout 1216 Comment



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