Search Results — 2000 specimen records retrieved (1338 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/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC99689  Abies concolor T. Jimerson, J. Pageau 1979-8-10 714 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  CAS-BOT-BC78054  Abies grandis L. R. Abrams 1916-7-18 6032 Humboldt Arcata to Trinidad Comment
  CDA19007  Abies grandis Lubinski 2000-10-5 PDR P 070106 Humboldt North Coast Ranges; along U.S.F.S Rd 1, in the vicinity of Blue Lake. 0 Comment
  HSC31505  Abies grandis Steve Selva, Roger Jensen 1974-8-27 88 Humboldt Hwy 299 ca. 1.0 mi. E of Blue Lake Comment
  UC1173736  Abies grandis Joseph P. Tracy 1939-5-30 16298 Humboldt 1 mi below Dinsmore's (along bank of Van Duzen River); Van Duzan River 731 Comment
  HSC55155  Abies procera Gilbert Muth 1979-8-1 12107 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC37927  Abronia latifolia Peter Sorensen 1976-5-28 Humboldt N spit Comment
  CAS-BOT-BC436976  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile northwest of Fieldbrook Comment
  POM17173  Acer circinatum J. B. Feudge 1923-7-25 54 Humboldt Fortuna 23 Comment
  UC165810  Acer circinatum J. P. Tracy 1906-4-15 2406 Humboldt near mouth Lindsey Creek (Mad River); , near mouth of Lindsey Creek 30 Comment
  UC902127  Acer circinatum Joseph P. Tracy 1932-6-26 17294 Humboldt Valley of South Yager Creek 609 Comment
  CAS-BOT-BC28583  Achillea millefolium J. Clausen 1949-6-22 2158 Humboldt 4 miles S of Scotia on redwood Highway in border of redwood forest near Eel River Comment
  UC1222921  Achillea millefolium Joseph P. Tracy 1947-7-3 17764 Humboldt mouth, sand dunes Little River Comment
  UC1126254  Achlys californica A. E. Wieslander 1928-6-14 23 Humboldt Cedar Camp Klamath Forest, Hoopa Quad., Cedar Camp Comment
  UC854590  Achlys californica Elizabeth Parsons Hawver June 1915 Humboldt Carlotta Comment
  HSC48482  Achlys triphylla Brad Klipfel 1974-7-23 466 Humboldt Horse Mtn. area Comment
  RSA12436  Achlys triphylla C. B. Wolf 1934-7-2 5857 Humboldt 2 miles from Bald Mt. on road to Korbel. 762 Comment
  SEINET200949 Image available Achnatherum lemmonii J. P. Tracy 1921-5-30 5486 Humboldt Kneeland Prairie 762 Comment
  RSA167290  Achnatherum lemmonii var. lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt Halfway between Snow Camp & Twin Lakes (at Preston's old gate near road) Comment
  HSC59943  Aconitum columbianum subsp. columbianum J. P. Smith, Steve Selva 1970-6-30 4112 Humboldt Comment
  HSC101545  Actaea rubra J. P. Smith, J. O. Sawyer 2009-8-11 12653 Humboldt Green Diamond Resource land along State Route 299. 762 Comment
  UC76581  Adenocaulon bicolor Mrs. M. H. Manning 1901-1-1 Humboldt near Hupa Comment
  HSC100384  Adiantum emarginatum Carl C. Marshall Jun 1887 429 Humboldt Jewett Creek. Comment
  CAS-BOT-BC65627  Adiantum jordanii Doris K. Kildale 1927-3-16 2995 Humboldt Phillipsville, South Fork of Eel River Comment
  CAS-BOT-BC202605  Aesculus californica Marcus E. Jones 1931-7-12 28938 Humboldt Alton Comment
  RSA0009548  Aesculus californica Marcus E. Jones 1931-7-12 28938 Humboldt Alton. Comment
  HSC102183  Agastache urticifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1097 Humboldt Patterson Meadows 1555 Comment
  RSA12441  Agoseris grandiflora C. B. Wolf 1934-7-1 5852 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  UC582754  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1930-7-6 8842 Humboldt Kneeland Prairie Kneeland Prairie 762 Comment
  UC582753  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1934-7-4 13298 Humboldt at crossing of the Kneeland Road Lawerence Creek 457 Comment
  UC1222943  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1948-8-15 18122 Humboldt 2 mi e, on ridge Grove's Prairie; Trinity Summit 1524 Comment
  SD41382  Agoseris heterophylla Edith A. Purer 1932-7-30 4681 a Humboldt South of Orick Comment
  UC92278  Agoseris heterophylla var. heterophylla W. W. Price 1900-6-30 Humboldt Mad River Comment
  UC1199484  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1927-5-14 8030 C Humboldt at Willow Creek; Trinity River Valley 152 Comment
  POM126129  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6283 Humboldt Bear Ridge Ridge 305 Comment
  CAS-BOT-BC127457  Agrostis densiflora Joseph P. Tracy 1927-6-26 8216 Humboldt Stone Lagoon. 6 Comment
  UC181242  Agrostis exarata Joseph P. Tracy 1913-7-13 4359 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC34115  Agrostis exarata Joseph Burtt Davy and Walter C. Blasdale 1899-5 6216 Humboldt Eureka Comment
  UCD52411  Agrostis exarata Harley P. Chandler 1901-6-1 1512 Humboldt Klamath River. 426 Comment
  UCD52425  Agrostis exarata J. E. Street 1950-6-24 s.n. Humboldt Bryalands. Comment
  UCSB288  Agrostis exarata Parks, H.; Parks, S. 1952-06 Humboldt Spruce Cove, Trinidad 60 Comment
  SEINET7593701 Image available Agrostis exarata W. A. Silveus 1938-1 2977 (a) Humboldt Near Dyerville 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-BC139500  Agrostis hallii Ira L. Wiggins 1932-7-25 5896 Humboldt Roadsides near McKinleyville. Comment
  UCD52689  Agrostis hallii P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek Camp, Klamath River. Comment
  CAS-BOT-BC139358  Agrostis idahoensis Joseph P. Tracy 1935-7-27 14303 Humboldt Trinity Summit. At McKay Prairie. 1584 Comment
  SEINET10810391  Agrostis longiligula Joseph P. Tracy 1902-7-4 Tracy 1757 Humboldt 0 Comment
  UC1103384  Agrostis microphylla J. P. Tracy 1900-7-22 898 1/2 Humboldt vicinity Eureka; vicinity Eureka 0 Comment
  CAS-BOT-BC139129  Agrostis oregonensis Joseph P. Tracy 1930-7-16 8995 Humboldt Northern Coast Ranges. South Fork Mountain. At Mckay Camp. 1676 Comment
  SEINET3127763  Agrostis pallens J. B. Davy 1899-6-13 5521 Humboldt Near Pepperwood Comment
  CAS-BOT-BC138631  Agrostis stolonifera Malcom A. Nobs; S. Galen Smith 1949-8-3 1168 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  RSA126092  Agrostis stolonifera Joseph P. Tracy 1902-7-4 1758 Humboldt [Unspecified] Comment
  SEINET3917179  Agrostis stolonifera Thomas Nelson, James Nelson 1976-7-28 3046 Humboldt West of alder Springs along 2S08.; 0 1554 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
  HSC74428  Aira caryophyllea Gail Newton 1980-8-10 2058 Humboldt Near Blake Mountain 1707 Comment
  HSC8856  Aira caryophyllea T. L. Ackerman 1964-5-15 50 Humboldt Sand dunes across from Fairhaven sign Comment
  UC1103301  Aira caryophyllea Joseph P. Tracy 1914-5-14 4439 Humboldt Fort Seward Northern Coast Ranges Comment
  HSC42389  Allium amplectens Dale McNeal 1977-6-6 2046 Humboldt Beside the Bridgeville-Kneeland Rd., 9.4 mi. N of Bridgeville Comment
  JEPS56361  Allium bolanderi W. L. Jepson 1902-7-1 1978 Humboldt Three Creeks to Willow Creek Comment
  POM169690  Allium bolanderi H. P. Chandler 1901-06 1434 Humboldt Klamath River. Comment
  UC666926  Allium campanulatum Joseph P. Tracy 1930-7-18 9072 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  SEINET8467147 Image available Allium falcifolium D. Keil 1983-1 17327 Humboldt Horse Mtn summit SW of Willow Crk. Comment
  CAS-BOT-BC135844  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-27 5956 Humboldt Saddle between Mt. Lassic and peak to east. 1676 Comment
  CAS-BOT-BC135847  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1973-5-30 977 Humboldt Humboldt-Trinity Co. line, Mt. Lassic (Signal Peak) 1789 Comment
  HSC65876  Allium hoffmanii Gail Newton 1980-7-11 1309 Humboldt Near Red Mtn. 1341 Comment
  HSC71825  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5956 Humboldt Saddle between Mt. Lassic and peak to E 1677 Comment
  JEPS47611  Allium siskiyouense Joseph P. Tracy 1933-7-16 12789 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  OBI35866  Allium siskiyouense David J. Keil 1983-7-2 17327 Humboldt Horse Mountain Summit SW of Willow Creek. Comment
  SEINET5586421  Allium triquetrum Richard R. Halse 2013-1 8768 Humboldt Along U.S. Hwy 101 ca. 1.0 miles west of Orick 4 Comment
  JEPS56397  Allium unifolium Joseph P. Tracy 1917-6-17 4078 Humboldt bluff at Bucksport Northern Coast Ranges, Eureka, Bucksport 0 Comment
  HSC40988  Alnus rhombifolia Thomas W. Nelson, Jane P. Nelson 1977-6-19 3518 Humboldt S of Alder Spring 1463 Comment
  CAS-BOT-BC169533  Alnus rubra Doris K. Kildale 1926-6-28 2181 Humboldt Big Lagoon Comment
  HSC3395  Alnus rubra D. A. Shally 1965-5-15 52 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC62778  Alnus rubra M. Dean Griswold Jr. 1979-5-30 89 Humboldt Along rd. up Jolly Giant Creek Comment
  POM89806  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit. Comment
  RSA152374  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt Mouth of Elk River, near Eureka. Comment
  SEINET201056  Alopecurus geniculatus J. P. Tracy 1926-6-12 7589 Humboldt Prairie Creek 152 Comment
  UC207704  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt Salmon Creek Northern Coast Ranges, Salmon Creek 15 Comment
  UCD55912  Alopecurus saccatus Joseph P. Tracy 1951-6-21 19525 Humboldt Hydesville, bed of former Goose Lake, back of Everett Beck house (formerly George Gray). Comment
  UCD55925  Alopecurus saccatus Beecher Crampton 1953-5-14 1264 Humboldt 1.5 mile south of Walsh Station. Comment
Read comments
May 18 2016
  CAS-BOT-BC13700  Ambrosia chamissonis W. S. Cooper 1925-7-28 102 Humboldt Cape Mendocino Comment
  HSC5662  Ambrosia chamissonis David Adams Oct 1960 Humboldt N bank of the Mad River near mouth 0 Comment
  SDSU19194  Amelanchier alnifolia var. semiintegrifolia Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3011 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. 0.3 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1426 Comment
  HSC56126  Amelanchier pallida G. L. Clifton, Griswold 1979-8-1 11917 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC56327  Amelanchier pallida Overton, Butler 1979-8-2 12680 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC492197 Image available Amelanchier utahensis Joseph P. Tracy 1930-7-16 9093 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain Comment
  CDA1716  Ammophila arenaria T. C. Fuller 1961-9-28 7062 Humboldt 0.2 miles south of Samoa. 0 Comment
  CHSC2118  Ammophila arenaria M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  CHSC33078  Ammophila arenaria J. P. Smith; T. W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC37358  Anaphalis margaritacea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 489 Humboldt Along Lost Man Creek. 38 Comment
  UCD128833  Anaphalis margaritacea Linda M. Barker 1976-8-2 1671 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC45139  Anaphalis margaritacea Mrs. H. C. Cantelow 1936-8-29 s.n. Humboldt 17 mi N of Garberville, S Fork Eel River, 1 mi off Rw. Highway 198 [Redwood Highway?] Comment
  SEINET10475558  Anaphalis margaritacea Mary Susan Taylor 1975-4-12 Taylor 466 Humboldt Ca. 2000 yds E of Hwy 101, in Orick, by railroad tracks. Comment
  HSC55633  Anemone deltoidea Overton, Butler 1979-7-24 9642 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC56099  Anemone deltoidea G. L. Clifton 1979-7-31 11817 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC391778  Anemone deltoidea Lillian Mott 1976-6-29 15 LM75 Humboldt Lady Bird Johnson Redwood Grove, Prairie Creek 60 Comment
  SEINET12087980  Anemone deltoidea Unknown 1936-1 13352 Humboldt near Scotia Comment
  HSC21447  Angelica hendersonii C. B. Wolf 1927-8-29 1216 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  HSC71406  Angelica hendersonii J. M. DiTomaso 1980-8-1 1818 Humboldt Table Bluff, S of Eureka 9 Comment
  HSC93230  Angelica lucida Clair Golec 1998-5-29 Humboldt Mouth of Jacoby Creek at Humboldt Bay. Comment
  HSC56149  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-8-1 11992 Humboldt Near Mill Creek, close to the town of Hoopa 1707 Comment
  CAS-BOT-BC271495  Anisocarpus madioides Harley P. Chandler 1901-6-1 1313 Humboldt Hupa Indian Reservation 152 Comment
  HSC44340  Antennaria suffrutescens Brad Klipfel 1975-6-17 682 Humboldt Horse Mtn. Comment
  CAS-BOT-BC84720  Anthemis cotula Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC12590  Anthemis cotula C. Kline 1970-10-28 53 Humboldt North Bank Rd., 3 mi. W of Blue Lake, Mad River gravel bottoms Comment
  UCR48595  Anthemis cotula R. D. Goeden, Don W. Ricker 1987-9-2 870902- 13 Humboldt Loleta, along Cannibal Road 8 Comment
  UCD85497  Anthoxanthum occidentale H. S. Yates 1936-6-22 5850 Humboldt 4 miles NE of Bald Mtn. Comment
  HSC33768  Anthoxanthum odoratum Lon Hall 1975-5-24 377 Humboldt Samoa Dunes, off Samoa Blvd., across from the boat landing Comment
  JEPS83360  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-26 354 Humboldt 9.1 mi s Kneeland Road junction with Mountain View Road (on Kneeland Road) Comment
  UC1012378  Antirrhinum vexillocalyculatum subsp. breweri Francis W. Pennell Jul 5 1940-Jul 6 1940 26077 Humboldt 2 to 3 mi s Miranda (Route 101, along Eel River); Eel River 91 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
  UC1198741  Aphanes occidentalis Joseph P. Tracy 1919-4-27 5129 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  UC153990  Apocynum androsaemifolium Joseph P. Tracy 1909-8-1 3063 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1196203  Aquilegia formosa Joseph P. Tracy May 16 1930-May 19 1930 9077 Humboldt McKay Camp Northern Coast Ranges, south Fork Mountain 1676 Comment
  HSC18041  Aquilegia formosa var. formosa N. D. Dennis 1965-5-8 57 Humboldt 2.5mi N of Willow Creek Comment
  HSC97563  Aquilegia formosa var. formosa Cara Witte 2007-6-1 165 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1355 Comment
  HSC55329  Aquilegia formosa var. truncata Griswold, Butler 1979-7-12 7169 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC102930  Arabis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 929 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC57418  Arabis divaricarpa var. interposita G. L. Clifton, Griswold 1979-7-26 10181 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC54209  Arabis glabra Griswold, Butler 1979-7-12 7253 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC98619  Arabis glabra var. glabra Cara Witte 2007-5-31 154 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  HSC100458  Arabis perfoliata Carl C. Marshall Jun 1887 403 Humboldt Harris. Comment
  OBI33241  Aralia californica David J. Keil 1983-7-1 17260 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  OBI33242  Aralia californica David J. Keil 1983-7-1 17260 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  HSC100848  Arctostaphylos canescens J. P. Smith, J. O. Sawyer 2010-5-4 12813 Humboldt Along Bald Hills Road. 930 Comment
  CAS-BOT-BC23786  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt Vicinity of Trinidad 60 Comment
  HSC101666  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 2011-4-23 13127 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  HSC62325  Arctostaphylos columbiana Ruby Van Deventer 1959-2-28 Humboldt Patrick's Point on Coastal Bluff Comment
  LA42320  Arctostaphylos columbiana H. E. Parks; December 1931 4950 Humboldt Hobson's Trinidad 60 Comment
  RSA622679  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27677 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  RSA622696  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27680 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1198654  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15441 Humboldt Eureka 45 Comment
  UC585915  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC585918  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  UC585920  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UCD50770  Arctostaphylos columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's point. Comment
  RSA381132  Arctostaphylos columbiana var. columbiana Roman Gankin, W. Richard Hildreth 1967-10-26 1171 Humboldt 21.4 miles east of US 101 on Bald Hills Road from Orick. French Camp Ridge. Comment
  JEPS38975  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13332 Humboldt ridge 5 mi s Harris (on road towards Bell Springs) 762 Comment
  UC1193022  Arctostaphylos glandulosa subsp. glandulosa R. H. Neuns 1950-10-9 135 Humboldt 3 mi w Thorne; Quad 28D4 670 Comment
  UCD51746  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1947-7-5 17787 Humboldt Trinity Summit; ridge top one mile west of Mud Springs. 1158 Comment
  CAS-BOT-BC24372  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-6-25 3583 a Humboldt Near Ettesburg. Comment
  JEPS38923  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1173705  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1939-8-5 16391 Humboldt dry hillsides and river bar of Van Duzen Dinsmore's 731 Comment
  UC153967  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1909-10-7 3112 Humboldt Gans Prairie Northern Coast Ranges 609 Comment
  CAS-BOT-BC40063  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1936-8-2 15075 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC40074  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1947-7-5 17787 Humboldt Trinity Summit, ridge top one mile west of Mud Springs. 1158 Comment
  HSC98995  Arctostaphylos patula Cara Witte 2008-7-10 865 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile east of National Forest 1. Under powerlines. 1254 Comment
  CAS-BOT-BC43998  Arctostaphylos uva-ursi Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC46794  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  CAS-BOT-BC47212  Arctostaphylos uva-ursi John Thomas Howell 1954-4-25 29157 Humboldt Little River. Comment
  HSC27879  Arctostaphylos uva-ursi Clifton Raymond Chesbrough 1973-6-19 77 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge Comment
  HSC7730  Arctostaphylos uva-ursi Norman H. Moe 1962-3-17 Humboldt Lanphere's Place Comment
  RSA636928  Arctostaphylos uva-ursi Jon E. Keeley, J. O. Sawyer 1996-10-11 27665 Humboldt Landfill Christensen Nature Conservancy Reserve, Arcata. 25 Comment
  SBBG54023  Arctostaphylos uva-ursi R. S. Woglum 1938-8-29 2020 Humboldt seashore, Samoa Comment
  UC1225934  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt Eureka 45 Comment
  SEINET11987494  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4213 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from near Samoa 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
  UC668115  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1933-5-18 12192 Humboldt near Blue Lake; Mad River 15 Comment
  HSC59197  Armeria maritima subsp. californica Terry Roth 1979-5-24 78 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  UCR39802  Armeria maritima subsp. californica Kenneth Clark 1981-5-24 1391 Humboldt North Coast, Abalone Point, 'Point Delgada Q. 15 Comment
  SEINET10537845  Armeria maritima subsp. californica Mary Susan Taylor 1990-8-22 Taylor 6083 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC49992  Arnica cernua M. A. Baker 1979-6-7 791 Humboldt 1250 Comment
  HSC74646  Arnica cordifolia M. A. Baker 1980-5-17 1215 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC82430  Arnica discoidea Doris K. Kildale 1926-6-27 2190 Humboldt McClellan Mountain - Sweasey Lake 822 Comment
  HSC40999  Arnica discoidea J. O. Sawyer 1975-10-17 2709 Humboldt Along Big Hill Rd. 915 Comment
  CAS-BOT-BC82426  Arnica discoidea Joseph P. Tracy 1923-6-20 6335 Humboldt Briceland 304 Comment
  HSC8986  Arrhenatherum elatius W. F. Cartwright 1965-5-20 79 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  HSC99551  Artemisia douglasiana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 216 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET201063  Artemisia douglasiana Joseph P. Tracy 1925-11-1 Humboldt Shively. Comment
  SEINET4343124  Artemisia tridentata subsp. wyomingensis Leila M. Shultz, John S. Shultz 1987-9-17 10750 Humboldt South of I-80, mile post 200 Comment
  HSC34795  Asarum caudatum John Palmer 1975-4-9 297 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  HSC62996  Asarum caudatum David Wheeler 1979-5-9 100 Humboldt Humboldt State University campus, 1/4 mi. E of the dorms along Jolly Giant Creek Comment
  RSA261553  Asarum caudatum Suzanne May 1967-4-15 21 Humboldt On Kneeland Road, 5 miles east of Bridgeville 244 Comment
  SEINET12094120  Asarum caudatum F. H. Utech 1988-1 88 -282 Humboldt Bridgeville to Dinsmore on CA 36 800 Comment
  SEINET12094754  Asarum caudatum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -277 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  JEPS49948  Asclepias fascicularis Mary H. Manning 1900-1 Humboldt near Hupa Comment
  HSC54555  Aspidotis densa Overton, Butler 1979-7-24 9561 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CHSC96713  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land. UTM Zone 10, 411418E, 4498706N. 700 Comment
  HSC92747  Astragalus agnicidus Robin Bencie 1993-6-15 1 Humboldt Miranda, 2 mi. W of Hwy. 101 on Bear Butte Rd. 500 Comment
  HSC95164  Astragalus agnicidus Gordon Leppig 2003-7-10 2002 Humboldt Pacific Lumber Co. land 730 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
  CAS-BOT-BC193142  Astragalus rattanii var. rattanii Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  JEPS21028  Astragalus rattanii var. rattanii Joseph P. Tracy 1926-5-15 7486 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS79824  Astragalus umbraticus Joseph P. Tracy 1914-7 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  RSA0089849  Astragalus umbraticus Dean Wm. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road. 1133 Comment
  UC160962  Astragalus umbraticus Mrs. M. H. Manning 1900-7-1 181 Humboldt near Hupa (Hoopa) (Bald Hills, Hupa Valley); near Hupa (Hoopa), Bald Hills, Hupa Valley Comment
  HSC3825  Asyneuma prenanthoides J. Sandborg, F. Sandborg 1968-7-19 54 Humboldt Bluff Creek near Notice Creek, near road below Notice Creek Bridge. Comment
  POM319593  Athyrium filix-femina subsp. cyclosorum Patricia Wilder 1968-8-21 4383 Humboldt Bog in Big Lagoon park, just west of Highway 101 2 Comment
  HSC30350  Athyrium filix-femina var. cyclosorum Dale R. Gradek 1974-5-28 90 Humboldt 0.25 mi. E of Hwy. 101 on Jolly Giant Creek 61 Comment
  HSC44050  Athyrium filix-femina var. cyclosorum Thomas W. Nelson, Jane Nelson 1977-6-19 3493 Humboldt Above Alder Springs, N of pond 1585 Comment
  JEPS35140  Athyrium filix-femina var. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt hill above Weott Comment
  JEPS35158  Athyrium filix-femina var. cyclosorum Milo S. Baker 1923-7-23 123 Humboldt near Ferndale Comment
  UCSB30586  Athyrium filix-femina var. cyclosorum Edwards, David 1974-9-2 Humboldt Ca. 10 ft. E. of dirt road, ca. 100 yds. from its jct. with Fickle hill Rd., Arcata 3 Comment
  CAS-BOT-BC170275  Atriplex confertifolia Dr. A. Kellogg; W. G. W. Harford 1868-1-1 862 Humboldt Humboldt Comment
  UC526858  Avena barbata Joseph P. Tracy 1930-6-29 8825 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope) 762 Comment
  UCD56094  Avena strigosa Ma. Jaegar 1926-6-8 415 3d Humboldt Happy Valley. Comment
  UC275449  Azolla filiculoides Parks and Tracy 1925-6-24 2763 Humboldt ditches along R.R. and tide flats Eureka Comment
  HSC933  Azolla microphylla H. E. Parks 1925-6-24 2763 Humboldt Eureka, Comment
  POM289915  Baccharis douglasii Lyman Benson 1929-7-12 1750 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  RSA47112  Baccharis pilularis Doris K. Kildale 1925-9-12 1326 Humboldt Salmon Creek near Miranda Comment
  HSC29875  Baccharis pilularis subsp. consanguinea Thomas W. Nelson 1971-11-11 601 Humboldt Foot of Murray Rd., McKinleyville. Comment
  HSC68262  Baccharis pilularis subsp. consanguinea J. P. Smith 1971-10-6 4963 Humboldt End of Murray Rd. in McKinleyville. Comment
  SEINET11861883  Balsamorhiza deltoidea J. P. Tracy 1950-6-15 18792 Humboldt Mail Ridge, N of Harris 7 mi Comment
  CDA6267  Bellardia trixago T. R. Haig 1960-6-15 4575 Humboldt 8 miles north of Trinidad. 0 Comment
  UC127824  Bellis perennis Harley P. Chandler May 1901 1128 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC5185  Bellis perennis W. F. Nickle 1965-3-13 Humboldt N Arcata near Park Plaza Apts. Comment
  RSA114084  Bensoniella oregona R. C. Bacigalupi, Constance, Trqacy, Moran, Rodriguez, Carlquist 1951-6-14 3410 Humboldt High Prairie, on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) 1067 Comment
  HSC31759  Berberis aquifolium Timothy B. Devine 1974-5-4 316 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  UC205467  Berberis aquifolium Joseph P. Tracy 1920-8-1 5347 Humboldt Lawrence Creek Kneeland Prairie 457 Comment
  SD56733  Berberis nervosa Darley F. Howe 1963-5-26 3555 Humboldt 3.2 miles east of Orick on Ball Hill Road 455 Comment
  UC1222894  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt near Slate Creek (Klamath River, below Orleans 8 mi); Klamath River 121 Comment
  POM118334  Blechnum spicant Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC535776  Blechnum spicant Eleanor Armstrong 1934-8-24 1167 Humboldt Richardson Grove 121 Comment
  POM256473  Boisduvalia glabella Joseph P. Tracy 1938-7-5 16004 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  UC572212  Bolboschoenus maritimus H. S. Yates 1936-6-16 5673 Humboldt 1 mi ne Samoa; Eureka Quad., ne of Samoa Comment
  HSC91369  Bolboschoenus robustus Leonel Arguello 1989-6-11 Humboldt Lanphere Dunes, 3 mi. W of Arcata Comment
  HSC31636  Borago officinalis Glenn McGourty 1974-6-1 85 Humboldt Comment
  HSC44612  Boschniakia hookeri R. York 1978-6-5 191 Humboldt Near Waterman Ridge Rd., 12 mi. from terminus with Hwy 299. Bulk collection #122 610 Comment
  HSC98127  Botrychium multifidum Cara Witte 2007-6-28 381 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  JEPS19058  Botrychium multifidum Milo S. Baker 1923-7-15 13 Humboldt southeastern outskirts of Eureka (near M and Hays Streets) Comment
  HSC97981  Boykinia major Cara Witte 2007-7-11 487 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  RSA20790  Boykinia major Carl B. Wolf 1937-8-13 9255 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  CAS-BOT-BC420260  Boykinia occidentalis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC420266  Boykinia occidentalis L. R. Abrams 1922-6-25 8285 Humboldt Big Lagoon south of Orick Comment
  HSC96479  Boykinia occidentalis Gordon Leppig 1997-6-19 441 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CDA30214  Brassica nigra M. K. Beyers, I. Shepardson 2009-9-13 243 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  HSC89516  Brassica rapa M. Roantree 1985-6-11 94 Humboldt E side of Trinidad Head Comment
  CAS-BOT-BC106287  Brickellia californica Joseph P. Tracy 1934-9-30 13681 Humboldt Bridgeville, on river bar 198 Comment
  CAS-BOT-BC106289  Brickellia californica E. G. Johnston 1931-8-1 s.n. Humboldt Myers, S. Fork Eel River Comment
  CAS-BOT-BC484218  Brodiaea elegans subsp. elegans Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  HSC48787  Brodiaea elegans subsp. elegans Brad Klipfel 1974-7-23 478 Humboldt Along Titlow Hill Rd. Comment
  RSA40409  Brodiaea elegans subsp. elegans Philip A. Munz 1948-8-13 12347 Humboldt Highway 229, 21 miles E of Blue Lake 762 Comment
  UC1197733  Brodiaea elegans subsp. elegans Joseph P. Tracy 1933-8-30 13014 Humboldt grassy places on Titlow Ridge Grouse Mountain 1432 Comment
  UC1222692  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-7-31 19234 Humboldt near Clear Lake; Grouse Mountain, Buck Prairie 1573 Comment
  UC1442888  Brodiaea elegans subsp. elegans Theodore F. Niehaus 1965-6-8 566 Humboldt along Glory road 1.7 mi sw Alderpoint Comment
  JEPS7624  Brodiaea stellaris Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3406 Humboldt along state Hwy 36 5 mi e Bridgeville Comment
  JEPS5498  Brodiaea stellaris Joseph P. Tracy 1925-5-30 7024 Humboldt on grassy slopes Northern Coast Ranges, McClellan Mountain 822 Comment
  HSC3017  Brodiaea terrestris subsp. terrestris D. E. Anderson 1963-5-25 2493 Humboldt 4 mi. W of Petrolia Comment
  HSC91591  Brodiaea terrestris subsp. terrestris E. Mackey 1986-6-18 Humboldt Patrick's Point State Park on Ceremonial Rock Comment
  SBBG53059  Bromus R. N. Philbrick, J. R. Haller 1976-6-25 5 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  HSC97612  Bromus carinatus var. carinatus Cara Witte 2007-6-4 198 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC1103280  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-18 5326 Humboldt 5 mi above mouth of South Fork (along Eel River from South Fork to Scotia); Northern Coast Ranges, Eel River 60 Comment
  UC37600  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-19 5677 Humboldt Hupa Mountain Comment
  UCD59147  Bromus carinatus var. marginatus A. H. Shunk 1923-7-21 s.n. Humboldt Bridgeville. 328 Customs House. Comment
  UCD60204  Bromus catharticus var. elatus A. H. Murphy 1947-8-19 s.n. Humboldt Fairground's exper. area. Fortuna. Comment
  HSC9296  Bromus diandrus R. J. Vernimen 1963-3-25 16 Humboldt Clam Beach Lagoons, along railroad tracks Comment
  RSA10108  Bromus hordeaceus Joseph P. Tracy 1933-6-25 12622 Humboldt Along Eel River, 2 to 5 miles east of South Fork.Camp Grant. Comment
  HSC73210  Bromus tectorum M. A. Baker 1980-5-18 1281 Humboldt Near Black Mtn. 1006 Comment
  CAS-BOT-BC185517  Bromus vulgaris W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River. Comment
  CAS-BOT-BC185519  Bromus vulgaris Joseph Burtt Davy; Walter C. Blasdale 1899-6-10 5406 Humboldt North Coast Ranges. Hubbards Station. Comment
  UC1103267  Bromus vulgaris J. P. Tracy 1901-6-2 1116 Humboldt immediate vicinity of Eureka 0 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
  RSA34316  Cakile edentula C. Kistner 1935-5-10 s.n. Humboldt [No location information.] Comment
  CAS-BOT-BC36861  Cakile edentula var. edentula Ira L. Wiggins 1930-7-7 4671 Humboldt Near Samoa. Comment
  HSC64071  Cakile maritima J. P. Smith 1971-10-6 4956 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC6610  Cakile maritima Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  UCD114941  Cakile maritima Linda M. Barker 1976-6-22 1628 Humboldt 3 miles west of Arcata. Comment
  HSC74072  Calamagrostis foliosa Joyce Walker 1980-9-3 Humboldt Shipman Creek Comment
  UC37779  Calamagrostis foliosa H. N. Bolander 1866-6 6470 Humboldt Mattole District; bluffs along seashore; Mattole District, Humboldt Co. Comment
  UC552721  Calamagrostis koelerioides Joseph P. Tracy 1935-7-30 14371 Humboldt Salmon Summit 2011 Comment
  HSC78988  Calandrinia ciliata L. P. Janeway 1984-4-11 727 Humboldt N Spit of Humboldt Bay, NW of the boat ramp and N of the Coast Guard Station 5 Comment
  CHSC100698  Callitriche heterophylla var. bolanderi Robert F. Thorne; P. Everett 2007-6-13 35345 Humboldt Along Hwy. 101 about 3 mi. N of Eureka; in shallow water ca. 1 ft. deep of ditch along roadside. 1 Comment
  UC183600  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1913-4-13 4038 Humboldt Ryan's Slough Northern Coast Region, Humboldt Bay Region (on Arcata road) 0 Comment
  HSC59492  Callitriche stagnalis M. A. Ericksen 1979-4-22 216 Humboldt 1 mi. W of intersection of Mad River Rd. and Iverson, Arcata bottoms, city of Arcata Comment
  CAS-BOT-BC80381  Calocedrus decurrens Carl D. Duncan 1920-9-27 s.n. Humboldt near Hoopa Comment
  HSC102506  Calocedrus decurrens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1491 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  CAS-BOT-BC488458  Calochortus amabilis V. Rattan 1882-6-1 s.n. Humboldt Humboldt County Comment
  UC1197698  Calochortus amabilis Mrs. Eri Eaton 1911-5-27 Humboldt near South Fork of Eel River; Phillipsville 304 Comment
  CAS-BOT-BC487804  Calochortus coeruleus H. C. Cantelow 1939-6-5 3947 Humboldt Dinsmore Meadow Comment
  HSC73144  Calochortus tolmiei M. A. Baker 1980-5-18 1330 Humboldt Near Black Mtn. 792 Comment
  UC1197675  Calochortus tolmiei Joseph P. Tracy 1927-6-12 8148 Humboldt Horse Mountain 1280 Comment
  CAS-BOT-BC494364  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt Sand dunes west of Dows Prairie 15 Comment
  CAS-BOT-BC494367  Calochortus tolmiei H. C. Cantelow 1941-4-26 36 Humboldt 12 miles sw. of Ferndale on road to Cape Mendocino Comment
  HSC34909  Calochortus tolmiei Thomas W. Nelson 1975-5-27 1883 Humboldt Beside Petrolia-Ferndale Rd., 5 mi. S of Ferndale Comment
  CAS-BOT-BC273313  Calycadenia fremontii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET11861072  Calycadenia truncata subsp. scabrella H. P. Chandler 1901-1 1492 Humboldt Klamath River, North Coast Ranges 427 Comment
  HSC45315  Calypso bulbosa R. A. Vanbianchi 1972-4-14 Humboldt Tiptop Ridge, directly E of the town of Fieldbrook Comment
  SEINET12074106  Calypso bulbosa J. P. Tracy 1950-1 Humboldt Comment
  UC1222191  Calypso bulbosa Joseph P. Tracy 1950-5-7 18643 Humboldt about 5 mi n of Bridgeville (on road to South Yager Valley) Comment
  UC1198374  Calyptridium monospermum Joseph P. Tracy 1919-9-18 5223 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1889 Comment
  UC175713  Calystegia purpurata Joseph P. Tracy 1912-7-26 3859 Humboldt Kneeland Prairie , Kneeland Prairie (Northern Coast Ranges) 762 Comment
  UC1222150  Calystegia purpurata subsp. purpurata Joseph P. Tracy 1950-6-8 18769 Humboldt near Petrolia (2 mi down river, hills between town and Ocean); near Petrolia Comment
  CDA39891  Calystegia silvatica subsp. disjuncta Gordon Leppig 2001-7-8 1577 Humboldt Northern California - North Coast Region; Arcata, at the intersection of 11th and B Streets. 0 Comment
  HSC59205  Calystegia soldanella Terry Roth 1979-5-24 81 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  UCSB15924  Calystegia soldanella Breedlove, Dennis 1962-6-8 Humboldt Near coast on U.S. Highway 101, 3 miles south of Orick Comment
  POM202655  Camassia M. S. Jussel 1931-5-1 s.n. Humboldt On road to Garberville Comment
  HSC45380  Camissonia cheiranthifolia R. York, Linda York 1978-4-1 99 Humboldt End of lighthouse Rd., 2 mi. SE of Petrolia. Comment
  UC1196940  Camissonia contorta Joseph P. Tracy 1906-5-13 2453 Humboldt Fairhaven Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC160235  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Carl B. Wolf 1927-8-29 1221 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  SEINET10462961  Campanula prenanthoides Philip A. Munz 1936-8-10 Munz 14338 Humboldt Dry roadside, Lottle Van Duzen River, 15 miles east of Bridgeville Comment
  SEINET10463063  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt WILLOW CREEK Comment
  SEINET10873256  Campanula prenanthoides Willis L. Jepson Jepson s.n. Humboldt Big Heorse Mountain Comment
  SEINET10873276  Campanula prenanthoides Olmo 1928-6-10 OLMO s.n. Humboldt WOOLEY CREEK Comment
  SEINET10463440  Campanula scouleri Willis L. Jepson 1902-7-30 Jepson 2128 Humboldt THREE CREEKS TO REDWOOD CREEK 914 Comment
  UC1326259  Campanula scouleri Milo S. Baker 1947-8-10 11901 Humboldt 15 mi ne Hoopa (near end of forest road) 1371 Comment
  RSA273405  Cardamine breweri var. orbicularis Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Humboldt County: T3N, R1N, S29, Brzil Ranch E of Hwy 101 near college of Redwoods. Comment
  CAS-BOT-BC37434  Cardamine californica Lincoln Constance; Reed Clark Rollins 1942-5-20 2998 Humboldt Eel River, 1 mile north of Pepperwood. 45 Comment
  HSC6692  Cardamine californica D. E. Anderson 1962-3-18 1941 Humboldt Jacoby Creek Comment
  HSC6698  Cardamine californica Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  POM311254  Cardamine californica var. integrifolia Keith C. Hughes 1961-2-3 326 Humboldt Richardson Grove State Park; Mt. Range: Coast Ranges; Drainage Area: Pacific Slope. 137 Comment
  RSA0034559  Cardamine californica var. integrifolia H. E. Parks, Joseph P. Tracy 1931-3-26 916 Humboldt Lower Van Duzen River. 61 Comment
  UC494001  Cardamine californica var. sinuata Parks and Tracy 916 Humboldt Lower Van Duzen River 60 Comment
  UC1199198  Cardamine nuttallii Joseph P. Tracy 1935-7-28 14320 Humboldt head Devil's Hole; Trinity Summit, head of Devil's Hole 1828 Comment
  HSC6643  Cardamine oligosperma J. W. Johnson 1962-4-8 1219 Humboldt Arcata, Mad River Co. Park Comment
  CDA18240  Cardionema ramosissimum G. D. Barbe, T. C. Fuller 1974-6-19 1878 Humboldt North Coast Ranges; Mad River mouth, at end of Iversen Lane, Tyee City. 7 Comment
  UC726350  Carex A. A. Heller 1930-8-4 14995 Humboldt Little River Comment
  UC1152063  Carex angustata Joseph P. Tracy 1950-7-6 18988 Humboldt lower end of Burr Valley on nw slope of Buck Mountain Burr Valley, Buck Mountain 1066 Comment
  CAS-BOT-BC18001  Carex aquatilis var. dives Joseph Prince Tracy 1934-7-30 13504 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  CHSC43008  Carex aquatilis var. dives L. P. Janeway 1987-7-30 2533 Humboldt At Dry Lagoon. 3 Comment
  RSA286355  Carex aquatilis var. dives Robert F. Thorne 1974-7-29 45076 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  UC562288  Carex barbarae Joseph P. Tracy 1932-6-14 10152 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC19435  Carex bolanderi Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  RSA246855  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35136 Humboldt Mt. Chamisal: below summit. 747 Comment
  HSC75766  Carex concinnoides Denis Kearns 1981-6-24 6 Humboldt Near Cedar Camp 1219 Comment
  RSA364727  Carex densa Thomas W. Nelson, Ken Hindley 1978-5-28 4086 Humboldt On McKeown Ranch north of Dinsmore. 762 Comment
  HSC102223  Carex echinata subsp. echinata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1140 Humboldt Patterson Meadows 1555 Comment
  HSC7163  Carex echinata subsp. phyllomanica Walker 1960-8-16 Humboldt 7 mi., K & K 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
  SEINET7558591 Image available Carex feta Andrew L. Hipp 1999-5-31 457 Humboldt Alder Point, Alder Pt Rd ca 5 mi W of Alder Pt. Comment
  CHSC45239  Carex geyeri L. P. Janeway 1984-6-17 845 Humboldt On ridge east of Horse Mtn. 1432 Comment
  CHSC43064  Carex globosa L. P. Janeway 1984-5-27 837 Humboldt Ca 1 mi east of Redway, along Redwood Cr. 91 Comment
  CAS-BOT-BC20871  Carex globosa Joseph Prince Tracy 1927-7-4 8242 Humboldt North Coast Ranges. Blue Slide, on Van Duzen River. 91 Comment
  JEPS80027  Carex globosa Joseph P. Tracy 1936-5-22 7507 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC22320  Carex harfordii Joseph Prince Tracy 1935-6-8 13938 Humboldt Eureka. 60 Comment
  CHSC48077  Carex harfordii L. P. Janeway 1983-5-15 297 Humboldt In riparian bend of Mad River on S side, near Fish Hatchery Rd and across river from Blue Lake. 24 Comment
  UC1103595  Carex hendersonii Joseph P. Tracy 1942-6-15 17143 Humboldt on the Briceland road Redwood Creek 121 Comment
  UC562728  Carex hendersonii Joseph P. Tracy 1927-5-30 8080 Humboldt near Myers; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC102203  Carex integra M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1118 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  JEPS79847  Carex jonesii Joseph P. Tracy 1932-7-15 10573 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  SEINET2430055  Carex laeviculmis Joseph P. Tracy 1929-7-4 8607 Humboldt French Camp Ridge 1070 Comment
  UC562285  Carex laeviculmis Joseph P. Tracy 1932-7-16 10635 Humboldt Corral Prairie Trinity summit 1584 Comment
  HSC58803  Carex lenticularis var. lipocarpa G. L. Clifton, Griswold 1979-7-31 11681 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1152059  Carex lenticularis var. lipocarpa Joseph P. Tracy 1950-8-7 19266 Humboldt meadow at Box Camp Trinity Summit 1463 Comment
  HSC73725  Carex leporinella M. A. Baker 1980-7-22 3072 Humboldt Near Salmon Mtn. 1820 Comment
  UC562725  Carex mendocinensis Joseph P. Tracy 1935-7-14 14086 Humboldt North Coast Ranges. Grouse Mountain. Comment
  HSC39228  Carex mendocinensis D. E. Anderson 1971-7-6 - 1284 Humboldt Horse Mtn. Comment
  HSC102153  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1061 Humboldt Patterson Meadows 1555 Comment
  HSC102231  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1152 Humboldt Patterson Meadows 1555 Comment
  CHSC85571  Carex multicostata L. P. Janeway 2003-7-30 7945 Humboldt High North Coast Ranges. Edge of seepy area at upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. 1494 Comment
  CAS-BOT-BC119718  Carex nervina Joseph Prince Tracy 1932-7-16 10627 Humboldt Trinity Summit, Fir woods near Corral Prairie. 1584 Comment
  HSC37833  Carex obnupta Thomas W. Nelson 1976-3-4 2263 Humboldt Eureka, beside Buhne St. between S St. and Harrison Ave. Comment
  HSC7067  Carex obnupta Francis Winter 1960-4-23 Humboldt 1 mi. S of Simpson Creek, Korbel-Maple Creek Rd. 213 Comment
  JEPS80017  Carex obnupta Joseph P. Tracy 1912-6-16 3702 Humboldt adjacent to salt marsh, Hookton Northern Coast Region, Humboldt Bay, Hookton 0 Comment
  RSA122793  Carex obnupta H. S. Yates 1936-6-16 5653 Humboldt 0.5 mile southwest of Samoa. Comment
  HSC69875  Carex ovalis Thomas W. Nelson 1978-5-28 4100 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  JEPS79851  Carex pachycarpa Joseph P. Tracy 1932-7-11 10411 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC119232  Carex pachystachya Joseph Prince Tracy 1936-7-5 15043 Humboldt Grouse Mountain. 1524 Comment
  UC1103100  Carex pachystachya Joseph P. Tracy 1935-6-23 13983 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC119164  Carex pansa Joseph Burtt Davy; Walter Charles Blasdale 1899-5-1 6218 Humboldt Eureka Comment
  HSC90761  Carex pansa Gail Newton 1982-6-5 3586 Humboldt Elk River Wildlife Area, Eureka. Comment
  SEINET4290249 Image available Carex subbracteata Unknown 2009-1 24494 Humboldt Outer North Coast Range (NCoRo), between Lord-Ellis and Berry summits. Above Route 299, 2.3 road miles W of junction with Chezen road. Comment
  SEINET8574179 Image available Carex subbracteata Unknown 2011-1 25493 Humboldt Titlow Hill Road, 3 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain. Outer North Coast Ranges (NCoRO) Comment
  CAS-BOT-BC116682  Carex subfusca Joseph Prince Tracy 1928-6-17 8450 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  POM126148  Carex tumulicola Joseph P. Tracy 1923-5-13 6205 Humboldt Near Bridgeville. Comment
  UC1561802  Carex tumulicola Barbara Ertter with Thomas J. Delendick 1987-5-16 6926 Humboldt ca. 15 air mi e Arcata (on n side of road, Vista Point just w of Berry Summit on Hwy. 299) 914 Comment
  CAS-BOT-BC115543  Carex unilateralis Joseph Prince Tracy 1941-6-29 16935 Humboldt Large dense clump, Hettenshaw Valley 944 Comment
  UC1116270  Carex unilateralis Joseph P. Tracy 1946-5-30 17539 Humboldt near Bridgeville 457 Comment
  RSA15477  Carex vesicaria Joseph P. Tracy 8988 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1677 Comment
  HSC7088  Carex viridula H. E. Parks Sep 1934 5157 Humboldt Dry Lagoon Comment
  JEPS82  Castilleja affinis subsp. affinis Lincoln Constance 1934-3-29 715 a Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  HSC20579  Castilleja affinis subsp. litoralis D. J. Jager 1965-5-12 67 Humboldt 0.5 mi. N of Trinidad on bluff above the ocean 46 Comment
  JEPS25063  Castilleja affinis subsp. litoralis Joseph P. Tracy 1947-5-24 17692 B Humboldt Big Lagoon 152 Comment
  JEPS93139  Castilleja affinis subsp. litoralis M. Wetherwax 1992-5-20 2435 Humboldt n side Wedding Rock (Patrick's Point State Park); Patrick's Point State Park 30 Comment
  CHSC68560  Castilleja ambigua subsp. humboldtiensis Vernon H. Oswald 1997-4-29 8351 Humboldt Near seal level. Humbolt Bay NWR, levee north of Long Pond along the arm of South Humbolt Bay separating Teal Island from the main part of the refuge. Comment
  HSC97237  Castilleja ambigua subsp. humboldtiensis Thomas W. Nelson, Jane Nelson 2004-4-20 9182 Humboldt At estuary to Elk River, SE of mouth 2 Comment
  SJSU8462  Castilleja ambigua subsp. humboldtiensis H. T. Harvey 1977-7-6 609 Humboldt South Spit, Humboldt Bay Comment
  SBBG54572  Castilleja exserta subsp. latifolia F. W. Pennell, J. Tracy 1940-7-6 26085 Humboldt back of beach, Table Bluff, W of Loleta Comment
  UC673100  Castilleja exserta subsp. latifolia Joseph P. Tracy with Dr. F. W. Pennell 1940-7-6 16659 Humboldt w foot Table Bluff 6 Comment
  HSC101997  Castilleja miniata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 896 Humboldt Patterson Meadows 1555 Comment
  HSC44563  Castilleja miniata Brad Klipfel 1973-7-15 183 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196860  Castilleja miniata Joseph P. Tracy 1927-8-22 8337 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD74318  Caulanthus major Tim Curns 2008-7-1 s.n. Humboldt Nevada, Humboldt County: Toiyabe National Forest. Hinkey Summit, near road 084, across from road 536, along unmarked road. Comment
Read comments
May 23 2013
  UC1502117  Ceanothus R. Sutherland 1975-7-13 3 .13-75 Humboldt Pt. Delgada Quad. 518 Comment
  UC1502127  Ceanothus R. Sutherland 1975-7-1 2 .1.7 75 Humboldt along Baker Creek; Garberville Quad., along Baker Creek 335 Comment
  HSC44430  Ceanothus arcuatus Brad Klipfel 1975-5-24 638 Humboldt Horse Mtn. Comment
  HSC55616  Ceanothus cordulatus Overton, Butler 1979-7-23 9511 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC275318  Ceanothus foliosus Joseph P. Tracy 1923-6-20 6322 Humboldt Chamisal Mountain, near Shelter Cove 304 Comment
Read comments
Aug 4 2016
  HSC37594  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-17 0 .17575 Humboldt Along Horse Mtn. Rd 518 Comment
  UC1193319  Ceanothus incanus R. H. Neuns 1950-7-13 130 Humboldt 3 miles south of Alder Point 548 Comment
  RSA46802  Ceanothus incanus Doris K. Kildale 1927-6-25 3579 Humboldt [No locality information on label.] Comment
  CAS-BOT-BC63680  Ceanothus integerrimus L. B. Kildale 1928-6-3 5094 Humboldt Bug Creek. Comment
  JEPS103741  Ceanothus integerrimus D. Wilken with E. Painter 2003-7-16 16151 Humboldt St Hwy 96 between Muddy and Weitchpec crks, just E of Weitchpec 70 Comment
  HSC97918  Ceanothus integerrimus var. integerrimus Cara Witte 2007-6-14 276 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  HSC37083  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-5-8 14 .8575 Humboldt Mattole Rd. 1.0 mi E of Petrolia, bank of Mattole River 67 Comment
  UC1193284  Ceanothus oliganthus var. sorediatus P. Zinke 1950-10-4 173 Humboldt w ridge Brushy Mt. (1.5 mi fron ocean.); Quad. 28D2 914 Comment
  HSC37084  Ceanothus parryi R. Sutherland 1975-5-30 4 .30575 Humboldt 320 Comment
  CAS-BOT-BC52042  Ceanothus prostratus Doris K. Kildale 1926-4-25 1810 Humboldt Hoopa Mountain 792 Comment
  HSC43189  Ceanothus pumilus R. Sutherland 1976-4-24 1 .24476 Humboldt 518 Comment
  HSC43230  Ceanothus pumilus R. Sutherland 1976-4-17 4 .17476 Humboldt 549 Comment
  CAS-BOT-BC52217  Ceanothus thyrsiflorus Doris K. Kildale 1926-3-20 1626 Humboldt Liscom Hill, Lower Mad River 30 Comment
  CAS-BOT-BC52985  Ceanothus thyrsiflorus L. R. Abrams; J. T. Benson 1924-5-17 10731 Humboldt One mile north of Trinidad Head Comment
  CAS-BOT-BC52997  Ceanothus thyrsiflorus Harold Paul Olmo 1934-6-8 s.n. Humboldt 5 miles n. of Trinidad Comment
  HSC47489  Ceanothus thyrsiflorus Sheila Logan 1978-4-7 11 Humboldt 0.5 mi E of McKinleyville on Murray Rd. Comment
  UC165825  Ceanothus thyrsiflorus Joseph P. Tracy 1909-6-6 2984 Humboldt Eureka 0 Comment
  UC594242  Ceanothus thyrsiflorus S. K. Harris 1936-6-8 3233 Humboldt roadside on bluff above ocean at Centerville; on bluff above ocean at Centerville Comment
  UCD112721  Ceanothus thyrsiflorus R. N. Raynor 1935-5-22 s.n. Humboldt Ford Seward. Comment
  OBI44963  Ceanothus thyrsiflorus var. thyrsiflorus Midred J. Cady 1938-7-14 s.n. Humboldt Near Trinidad Comment
  HSC97570  Ceanothus velutinus Cara Witte 2007-6-5 215 Humboldt Along Forest Service Road 4N32. Near Grouse Mountain 1486 Comment
  CDA35602  Ceanothus velutinus T. C. Fuller, T. Gallion 1959-7-23 2817 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  HSC74217  Ceanothus velutinus var. velutinus M. A. Baker 1980-7-23 3177 Humboldt Near Orleans Mtn. 1859 Comment
  HSC100354  Centaurea X moncktonii S. Carothers 2002-9-12 1 Humboldt ~0.75 mi. E of Weitchpec (bridge over the confluence of the Trinity and Klamath rivers) on N side of road. 610 Comment
  UC906721  Centaurea benedicta Harold E. Parks and Joseph P. Tracy 1942-7-2 11580 Humboldt Dinsmore's 762 Comment
  JEPS44148  Centaurea cyanus Lincoln Constance 1934-6-25 928 Humboldt on e side of road at Englewood (across the road from Collins' Englewood Campground); Bull Creek Region, South Fork Eel River Comment
  CDA42256  Centaurea diffusa R. Spadoni, Green 2002-10-9 PDR P 070865 Humboldt Northwestern California; Pacific Lumber Co, Scotia. 0 Comment
  JEPS44138  Centaurea solstitialis Joseph P. Tracy 1933-8-27 13002 Humboldt 2 to 5 mi e of the South Fork (along the Eel River, Camp Grant); Eel River 45 Comment
  JEPS25793  Centaurium muehlenbergii L. R. Heckard 1960-8-23 1211 Humboldt about 0.5 mi s Dry Lagoon State Park (near Orick) 152 Comment
  RSA120711  Centaurium muehlenbergii S. S. Tillett 1956-7-6 607 Humboldt Above Klamath River, along Ishi Rish Road, one mile north of Orleans. 168 Comment
  HSC63841  Cephalanthera austiniae M. A. Baker 1979-6-29 954 Humboldt 900 Comment
  HSC99499  Cephalanthera austiniae K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 159 Humboldt Near North Trinity Mtn, along Forest Service Rd 10NO2, between two forks of Domingo Creek 1433 Comment
  CAS-BOT-BC384998  Cerastium fontanum Carl B. Wolf 1927-8-22 797 Humboldt Big Lagoon Comment
  HSC44765  Cerastium fontanum subsp. vulgare Maralyn O'Meara 1972-6-8 87 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC39961  Cerastium glomeratum Linda M. Barker 1976-4-13 1381 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  RSA18059  Cerastium glomeratum C. B. Wolf 1927-8-22 797 Humboldt Big Lagoon. Comment
  CAS-BOT-BC179481  Cercis occidentalis Henry M. Pollard 1956-8-10 s.n. Humboldt Old Klamath River road near Harley Place, Orleans. Comment
  HSC97628  Chaenactis douglasii var. douglasii Cara Witte 2007-6-12 241 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1311 Comment
  CAS-BOT-BC284539  Chaenactis glabriuscula var. heterocarpha Volney Rattan 1886-6-1 s.n. Humboldt Ukiah Comment
  HSC1196  Chamaecyparis lawsoniana Curt M. Johnson 1966-3-11 115 Humboldt Flood plain of Bull Creek at Bull Creek 152 Comment
  SEINET10719673  Chamaecyparis lawsoniana Ronald J. Mastrogiuseppe 1966-1 Mastrogiuseppe s.n. Humboldt Growing in upper Bull Creek, Humboldt Redwoods State Park. Comment
  HSC55206  Chamerion angustifolium subsp. circumvagum Overton 1979-8-1 12324 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  CAS-BOT-BC68264  Cheilanthes gracillima Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC54691  Cheilanthes gracillima Overton, Butler 1979-7-26 9988 Humboldt Near Willow Creek 1341 Comment
  HSC74806  Cheilanthes gracillima Gail Newton 1980-7-23 1717 Humboldt Near Packsaddle Ridge 1463 Comment
  UC161392  Chenopodium botrys Chesnut and Drew 1888-7-1 Humboldt Grouse Creek Comment
  HSC55056  Chimaphila menziesii G. L. Clifton, Griswold 1979-7-31 11589 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa Comment
  RSA12553  Chimaphila menziesii C. B. Wolf 1934-7-2 5886 Humboldt Snow Camp. Mountains east of Korbel. 1372 Comment
  HSC55158  Chimaphila umbellata Gilbert Muth 1979-8-1 12119 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1197594  Chimaphila umbellata Joseph P. Tracy 1911-7-7 3421 Humboldt ridge n. of Willow Creek (between Willow & Campbell Creeks, Brannan Mt, near summit); Northern Coast Ranges, Brannan Mt. 1219 Comment
  UC1197603  Chimaphila umbellata Joseph P. Tracy 1948-8-15 18140 Humboldt on ridge 2 mi. e. Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  UCD117385  Chimaphila umbellata Roman Gankin 1965-8-5 546 Humboldt On Kings Mountain Road, 2.2 miles east of road end, Pacific Range Wilderness Area. Comment
  SEINET11835174  Chrysanthemum segetum J. P. Tracy 1950-1 18831 Humboldt Eureka Comment
  CAS-BOT-BC36481  Chrysolepis chrysophylla Doris K. Kildale 1926-9-5 2628 Humboldt Top of ridge at Goat Camp, Lassecks Peaks 1661 Comment
  CHSC23196  Chrysolepis chrysophylla Robert F. Thorne 1965-8-5 35134 b Humboldt Mt. Chamisal: below summit. 746 Comment
  UC519307  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1933-8-6 12933 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  OBI14344  Chrysolepis chrysophylla var. minor Carl B. Wolf 1937-9-13 9338 Humboldt North Coast range, summit of Grouse Mt Comment
  UC503101  Chrysolepis sempervirens Joseph P. Tracy Jul 16 1930-Jul 19 1930 8951 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  SEINET7712239  Chrysopsis oregona Chesnut, Drew 1888-7-21 Humboldt S. Fork Mtn. Comment
  RSA170226  Chrysosplenium glechomifolium Joseph P. Tracy 1918-4-28 4888 Humboldt At Eureka 0 Comment
  UC1198852  Chrysosplenium glechomifolium J. P. Tracy 1901-6-10 1128 Humboldt immediate vicinity Eureka 0 Comment
  JEPS35983  Cichorium intybus Lincoln Constance 1934-6-25 933 Humboldt Bull Creek Region. South Fork Eel River. On E side of road at Englewood, across the road from Collin's Englewood Campground. Comment
  HSC36440  Cicuta douglasii John Rehling 1974-7-8 9 Humboldt Big Lagoon Bog Comment
  UC180176  Cicuta douglasii Joseph P. Tracy 1914-9-6 4612 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  CDA15023  Cirsium brevistylum B. Villegas 1998-8-4 s.n. Humboldt North Coast Ranges; Hwy 299 between mileposts 21.50 and 18, near Willow Creek. 0 Comment
  HSC40773  Cirsium brevistylum Thomas W. Nelson 1976-7-9 3014 Humboldt Along S.R. 36 just E of Heley Creek Comment
  CDA15024  Cirsium douglasii var. douglasii B. Villegas 1998-8-5 s.n. Humboldt North Coast Ranges; Nr. Berry Summit on Titlow Hill Rd, 4.8 mi. S of Hwy 299. Comment
  HSC94050  Cirsium douglasii var. douglasii B. Villegas 1998-8-5 Humboldt Nr. Berry Summit on Titlow Hill Rd., 4.8 mi. S of Hwy. 299 Comment
  CAS-BOT-BC288715  Cirsium remotifolium L. R. Abrams 1916-7-18 6081 Humboldt Arcata to Trinidad Comment
  CAS-BOT-BC285769  Cirsium vulgare Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  RSA47110  Cirsium vulgare Doris K. Kildale 1925-9-22 1323 Humboldt Fickle Hill above Arcata Comment
  UC1196997  Clarkia amoena J. P. Tracy 1898-8-13 286 Humboldt Eureka Comment
  CAS-BOT-BC160945  Clarkia amoena subsp. amoena Peter H. Raven; R. Snow 1958-7-21 13656 Humboldt 7.2 miles north-west of Capetown on road to Ferndale Comment
  CAS-BOT-BC160952  Clarkia amoena subsp. amoena Doris K. Kildale 1927-7-17 3749 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC160961  Clarkia amoena subsp. amoena Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC164178  Clarkia concinna Doris K. Kildale 1927-5-17 3179 a Humboldt Fish Creek near Garberville Comment
  HSC35011  Clarkia davyi Thomas W. Nelson 1974-9-15 1715 Humboldt W of Fairhaven, Samoa Peninsula Comment
  UC20297  Clarkia gracilis subsp. gracilis Harley P. Chandler June, 1901 1363 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  LA47440  Clarkia gracilis subsp. gracilis Joseph P. Tracy; 1912-7-31 3907 Humboldt Burr Valley, on NW slope of Buck Mountain 1066 Comment
  UC1071989  Clarkia gracilis subsp. gracilis H. and M. Lewis 1947-6-13 420 Humboldt 2.3 mi e Bridge 4-119 (Highway 36); South Fork of Van Duzen River Comment
  UC562524  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1936-6-10 14935 Humboldt w of mouth South Fork Trinity River 609 Comment
  CAS-BOT-BC172504  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1926-6-8 2128 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC172507  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1925-6-28 804 Humboldt Kneeland Prairie, bald hills 762 Comment
  CAS-BOT-BC172510  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1932-6-26 10264 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC172509  Clarkia purpurea subsp. quadrivulnera J. P. Tracy 1933-7-3 12634 Humboldt Trinity River at Willow Creek 152 Comment
  HSC98078  Clarkia purpurea subsp. viminea Cara Witte 2007-7-3 401 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  CAS-BOT-BC164824  Clarkia rhomboidea Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  UC183596  Claytonia exigua subsp. glauca Joseph P. Tracy 1913-5-4 4049 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC99412  Claytonia parviflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 61 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
  CAS-BOT-BC439933  Claytonia perfoliata subsp. mexicana Doris K. Kildale 1926-3-21 1583 Humboldt Kneeland Prairie - summit 853 Comment
  CAS-BOT-BC440094  Claytonia perfoliata subsp. perfoliata Doris Kildale 1931-5-10 10547 Humboldt Snow Camp Comment
  RSA249332  Claytonia rubra D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5610 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC99411  Claytonia rubra subsp. rubra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 60 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
  HSC71810  Claytonia saxosa Thomas W. Nelson, Jane P. Nelson 1980-6-27 5952 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  CAS-BOT-BC443894  Claytonia sibirica Alice Eastwood; John Thomas Howell 1937-6-23 4783 Humboldt Near Dinsmore's Comment
  CAS-BOT-BC443897  Claytonia sibirica Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CHSC32852  Claytonia sibirica Lora L. Anderson 1981-4-26 13 Humboldt Small population ca. 0.5 mi e of ocean (Moon-Stone Beach) 0.5 mi w of Hwy 101, 11.5 mi n of Arcata. 0 Comment
  HSC17728  Claytonia sibirica D. E. Anderson 1961-8-11 1725 Humboldt Redwood preserve E of HSU campus 30 Comment
  HSC48753  Claytonia sibirica Brad Klipfel 1973-6-10 79 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET4087419  Claytonia sibirica O. M. Clark 1932-1 5314 Humboldt South Eureka. Comment
  CAS-BOT-BC443899  Claytonia sibirica Joseph P. Tracy 1937-7-2 15388 Humboldt Happy Camp Mountain (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  HSC17725  Claytonia sibirica D. E. Anderson 1962-3-31 1970 Humboldt Coastal area of Prairie Creek State Park Comment
  RSA168883  Claytonia sibirica Joseph P. Tracy 1951-6-21 19521 Humboldt Everett Beck s house, Hydesville Comment
  HSC93927  Claytonia washingtoniana L. Snyder, B. Redfern, A. de Knijf 1999-4-12 37 Humboldt Mad River Fish Hatchery 54 Comment
  BLMAR278  Clintonia andrewsiana Jennifer Anthony-Wheeler 1999-6-3 278 Humboldt Headwaters Forest Reserve less than 400 Comment
  CAS-BOT-BC499341  Clintonia andrewsiana Doris K. Kildale 1926-7-22 2413 Humboldt Metropolitan, woods near Canyon Peak Comment
  HSC15451  Clintonia andrewsiana E. W. Styskel 1963-5-19 52 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  SEINET3885722  Clintonia andrewsiana D. W. McNeal 1977-6-6 2047 Humboldt On a Redwood House Rd., 2.6 mi. n.e. of Hwy. #36 between Bridgeville and Charlotta.; 0 Comment
  UC30059  Clintonia uniflora Joseph Burtt Davy 1899-6-19 5656 Humboldt Hoopa Mountain Comment
  SEINET201027  Cnicus benedictus Harold E. Parks, Joseph P Tracy 1942-7-2 11580 Humboldt Dinsmore's 762 Comment
  HSC74444  Collinsia grandiflora M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  JEPS6215  Collinsia grandiflora Joseph P. Tracy Jan 1917 4777 Humboldt Eureka Comment
  HSC74316  Collinsia greenei M. A. Baker 1980-7-11 2782 Humboldt Near Red Mtn. 1341 Comment
  HSC73584  Collinsia linearis Gail Newton 1980-7-14 1492 Humboldt Near Last Chance Ridge. 1219 Comment
  UC54920  Collinsia linearis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC20635  Collinsia linearis D. E. Anderson 1965-6-1 3777 Humboldt Along Ridge Rd., about 7 mi. NE of its Jct. with Titlow Hill Rd. Comment
  UC1222820  Collinsia linearis Joseph P. Tracy 1950-7-2 18969 Humboldt on Ridge 2 mi e of Grove's Prairie (Trinity Summit, Happy Camp Mountain); Trinity Summit, Happy Camp Mountain 1371 Comment
  HSC31203  Collinsia rattanii D. E. Anderson 1972-6-20 5744 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC1196841  Collinsia rattanii Joseph P. Tracy 1929-7-4 8628 Humboldt French Camp Ridge 1066 Comment
  UC673102  Collinsia rattanii Joseph P. Tracy 1940-5-17 16552 Humboldt Larrabee Valley 731 Comment
  UC1196823  Collinsia sparsiflora var. collina Joseph P. Tracy 1932-4-24 9819 Humboldt between Miranda and Redway (S. Fork Eel River); North Coast Ranges 91 Comment
  UCR45409  Collinsia sparsiflora var. sparsiflora Barry Silver 1986-4-23 519 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  UC198584  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1916-5-2 4685 Humboldt Northern Coast Ranges, Eureka, lower slopes of Buck Mountain Buck Mountain; Northern Coast Ranges, Eureka, Buck Mountain 762 Comment
  UC1222736  Collomia grandiflora Joseph P. Tracy 1950-7-6 19029 Humboldt 3 mi s Burr Valley; Sprosten's Place 1066 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
  HSC16924  Collomia heterophylla D. E. Anderson 1962-7-17 2274 Humboldt Camp Bauer, 1/4 mi. E of Korbel, along N Fork of Mad River Comment
  HSC36634  Collomia tracyi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1907 Humboldt N side of Pine Mtn. Comment
  HSC57691  Collomia tracyi G. L. Clifton, Griswold 1979-7-25 10910 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1197866  Collomia tracyi Joseph P. Tracy 1946-6-15 17566 Humboldt broken rock talus on lower slopes Horse Mountain 1066 Comment
  UC52410  Collomia tracyi Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5675 Humboldt dry rocky places on summit North Coast Ranges, Hoopa Mountain Comment
  HSC45623  Comandra umbellata subsp. californica Diane L. Reed 1978-4-22 12 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  RSA46800  Comandra umbellata subsp. californica Doris K. Kildale 1926-5-2 2024 Humboldt Willow Creek. Comment
  HSC36436  Conium maculatum John Rehlingl 1974-6-27 Humboldt Along Alliance Rd. Comment
  HSC6344  Convolvulus arvensis A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek jct., 50 yards W of Lindsey Creek. Comment
  UC1199443  Conyza floribunda Joseph P. Tracy 1929-10-13 8679 Humboldt Carlotta 60 Comment
  UC1225828  Corallorhiza maculata Joseph P. Tracy 1948-8-15 18150 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC54866  Corallorhiza mertensiana G. L. Clifton, Griswold 1979-7-25 10776 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC63188  Corallorhiza mertensiana M. A. Baker 1979-6-8 805 Humboldt 1.5 km. N of Gan's Prairie along Bald Hills Road Comment
  UC1046561  Corallorhiza mertensiana R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3420 Humboldt 4700 ft ridge between Mad River and; Bald Mountain, Snow CamRedwood Creek Comment
  BLMAR204  Corallorhiza striata Jennifer Anthony-Wheeler 1996-7-9 204 Humboldt Pilot ridge. 1280 Comment
  BLMAR311  Cordylanthus maritimus subsp. palustris Jennifer Anthony-Wheeler 2002-7-1 311 Humboldt South Spit 6 Comment
  JEPS6033  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1938-7-15 16064 Humboldt borders of salt marsh at Fields Landing, around Humboldt Bay Humboldt Bay; Northern Coast Region 3 Comment
  JEPS70115  Cordylanthus maritimus subsp. palustris L. R. Heckard 1972-8-9 3152 Humboldt Margin of Humboldt Bay 2 mi s of Arcata; Humboldt Bay Comment
  UC41841  Cordylanthus tenuis subsp. viscidus Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  CAS-BOT-BC101143  Corethrogyne filaginifolia Doris K. Kildale 1927-6-25 3562 Humboldt Shelter Cove Comment
  UC204865  Corethrogyne filaginifolia J. P. Tracy 1918-7-5 5025 Humboldt Mc Kee's Field; White Thorn Valley 304 Comment
  RSA275304  Corethrogyne filaginifolia var. californica J. P. Smith 1976-10-3 8993 Humboldt Samoa Peninsula, just west of drag strip Comment
  UC630635  Cornus canadensis Joseph P. Tracy 1939-7-9 16321 Humboldt Bald Mountain. at Lake Prairie Bald Mountain 1066 Comment
  CAS-BOT-BC209754  Cornus glabrata Joseph P. Tracy 1919-5-31 5175 & 5210 Humboldt At Lack Pond. Trinity River Valley, near Willow Creek 152 Comment
  PASA1934  Cornus sessilis Frank W. Peirson 1932-7-7 Humboldt Wild Creek 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
  UC1197936  Corylus californica Joseph P. Tracy 1949-7-19 18375 Humboldt at Friday Camp 1219 Comment
  UC215327  Corylus californica Huron H. Smith 1911-7-7 3933 Humboldt Bull Creek Comment
  HSC3480  Corylus cornuta subsp. californica D. E. Anderson 1962-3-17 1939 Humboldt Comment
  UCD110089  Corylus cornuta subsp. californica J. Street 1950-6-24 s.n. Humboldt Honeydew. 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
  SBBG62533  Cotula coronopifolia H. E. Parks -Sep-1941 24211 Humboldt Little River State Park Comment
  UC485352  Cotula coronopifolia Joseph P. Tracy 1912-7-21 3775 Humboldt Alton; Northern Coast Region 30 Comment
  CAS-BOT-BC290589  Crepis capillaris David D. Keck; J. Clausen 1935-6-16 3397 Humboldt Orick Comment
  CAS-BOT-BC291493  Crepis capillaris Alice Eastwood 1921-7-21 10657 Humboldt Carlotta Comment
  JEPS25619  Crepis capillaris Rimo Bacigalupi 1959-7-7 7252 Humboldt immediately behind bluff headland of Cape Mendocino (and just n of road summit at this point, along roadside ditch) 30 Comment
  SD39858  Crepis capillaris Edith A. Purer 1932-7-30 4683 Humboldt South of Orick. Comment
  UC1199454  Crepis capillaris Joseph P. Tracy 1914-6-14 4501 Humboldt Carlotta Hydesvill (near Hydesville); Northern Coast Region 60 Comment
  UCR121767  Crepis capillaris George K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  CAS-BOT-BC291478  Crepis capillaris F. J. Kirby 1958-7-1 1211 Humboldt West of Bridgeville 457 Comment
  CDA4466  Crepis capillaris T. R. Haig 1960-6-2 Humboldt 1mile west of Rio Dell, Humbolt Co., CA. 0 Comment
  UC1223028  Crepis occidentalis Joseph P. Tracy 1951-6-26 19575 Humboldt Twin Lakes vicinity Comment
  CAS-BOT-BC290727  Crepis occidentalis subsp. conjuncta Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC290907  Crepis setosa Henry M. Pollard 1947-8-21 s.n. Humboldt Between Orleans and Boyse [Boise] Creek Comment
  CAS-BOT-BC290909  Crepis setosa Henry M. Pollard 1948-8-8 s.n. Humboldt Between Orleans and Camp Creek Comment
  HSC70377  Crocidium multicaule M. A. Baker 1980-6-7 1787 Humboldt Near Brush Mtn. 1128 Comment
  UC76597  Crocidium multicaule Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  UC31346  Crocidium multicaule C. C. Marshall 1888-1 Humboldt Comment
  HSC8629  Croton setiger D. E. Anderson 1961-9-30 1839 Humboldt Along Hwy. 299 Comment
  UC1239662  Cryptantha affinis Joseph P. Tracy 1935-7-23 14130 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC3587  Cryptantha torreyana H. E. Parks, J. P. Tracy 1934-6-27 11058 Humboldt Grouse Mtn. Comment
  HSC58237  Cryptantha torreyana Walter Overton 1979-8-1 12396 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC525609  Cryptantha torreyana Joseph P. Tracy 1933-7-25 12865 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC162650  Cuscuta salina var. major Joseph P. Tracy 1911-10-22 3551 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  UCSB24349  Cuscuta subinclusa Tracy, Joseph 1924-7-20 Humboldt Brannan Mt.; on Willow Cr. Road 1005 Comment
  HSC66829  Cycladenia humilis M. A. Baker 1980-7-24 3197 Humboldt Near Orleans Mtn. 1625 Comment
  UC1222263  Cynoglossum grande Joseph P. Tracy 1949-6-20 18314 Humboldt 6 mi. s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC1222259  Cynoglossum occidentale Joseph P. Tracy 1949-8-26 18508 Humboldt 6 mi. n.e. Hawkin's Bar (Happy Camp Mt.); Trinity Summit Range, Happy Camp Mt. 1280 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
  HSC9519  Cynosurus echinatus R. Spellenberg 1964-6-15 418 Humboldt 7 mi. E of Redwood Creek, Hwy. 299 Comment
  UC1145094  Cynosurus echinatus Joseph P. Tracy 1950-6-23 18865 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); Dobbyn Creek 213 Comment
  RSA54135  Cyperus bipartitus Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  UC668034  Cyperus eragrostis Joseph P. Tracy 1935-5-25 13836 Humboldt Fort Seward 106 Comment
  BLMAR416  Cyperus eragrostis Jennifer Wheeler 2007-8-29 416 Humboldt South Spit, East side of road near bay 9 Comment
  SEINET200971  Cyperus erythrorhizos Joseph P. Tracy 1920-8-15 5364 Humboldt Klamath River at mouth of Bluff Creek. 152 Comment
  RSA53797  Cyperus esculentus Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon. Comment
  JEPS79881  Cyperus squarrosus Joseph P. Tracy 1931-9-7 9662 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  POM160313  Cypripedium californicum Joseph P. Tracy 1926-6-27 7669 Humboldt Horse Mountain 1463 Comment
  CAS-BOT-BC189762  Dactylis glomerata Doris K. Kildale 1927-6-26 3591 Humboldt Patrick's Point. Comment
  HSC9535  Dactylis glomerata R. H. Berg 1963-2-23 2 Humboldt Fickle Hill area, Arcata Comment
  JEPS72926  Dactylis glomerata Lincoln Constance 1934-6-6 828 Humboldt Fire trail Dyerville to Horse Prairie and return Bull Creek Region; South Fork Eel River, Bull Creek Region Comment
  UC1103248  Dactylis glomerata Joseph P. Tracy 1919-8-28 5186 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC32479  Danthonia californica D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5721 Humboldt McKeown Ranch, N of Dinsmore Comment
  SEINET10598246  Danthonia californica Joseph P. Tracy 1912-6-9 Tracy 3650 Humboldt Alton, common on open slopes. 30 Comment
  CAS-BOT-BC194415  Danthonia intermedia Joseph P. Tracy 1935-7-25 14231 Humboldt Open places at McKay Prairie, Trinity Summit 1584 Comment
  CAS-BOT-BC194369  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  UCD61366  Danthonia unispicata Joseph P. Tracy 1951-6-26 19571 Humboldt Snow Camp and Twin Lakes vicinity. 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
  HSC46019  Daucus carota Catherine Chin 1978-8-5 94 Humboldt 7th & A St., Arcata Comment
  UC673050  Daucus carota Joseph P. Tracy 1940-10-17 16761 Humboldt near Dyerville (South Fork Station); South Fork Station 48 Comment
  HSC21479  Daucus carota H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  HSC59680  Daucus carota George Kirn 1977-10-1 Humboldt Eureka, open bayfront field 1/2 mi E of Hwy 255 6 Comment
  RSA470773  Daucus pusillus M. O'Mera 1974-6-2 496 Humboldt South Spit to Humboldt Bay Comment
  UC1197355  Daucus pusillus Joseph P. Tracy 1918-7-3 4996 Humboldt Shelter Cove Northern Coast Ranges, Shelter Cove 15 Comment
  CAS-BOT-BC9027  Delphinium decorum subsp. tracyi Charles R. Schwend 1986-4-19 023 Humboldt Approximtaely 3/4 mile west of ski area on Horse Mountain Comment
  HSC97643  Delphinium decorum subsp. tracyi C. Witte 2007-5-22 78 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 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
  SEINET12099543  Delphinium hesperium H. P. Chandler 1901-1 1410 Humboldt Klamath River 1000 Comment
  CAS-BOT-BC9961  Delphinium nudicaule Doris K. Kildale 1926-3-21 1582 Humboldt Kneeland Prairie 762 Comment
  HSC98907  Delphinium nudicaule Cara Witte 2007-5-23 106 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  CAS-BOT-BC116467  Delphinium nuttallianum Daniel Howard Norris 1931-5-30 12213 Humboldt ...at crest of ridge on Big Hill Road east of Hoopa Comment
  JEPS102996  Delphinium trolliifolium R. Raiche, K. Zadnik, and H. Forbes 1991-6-13 136 Humboldt 39 mi E of Rio Dell (on Hwy 36) 896 Comment
  JEPS5768  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  RSA24198  Delphinium trolliifolium Carl B. Wolf 1941-3-1 9975 Humboldt Kneeland Prairie, 1/8 mile SE of Kneeland School. 762 Comment
  CAS-BOT-BC194293  Deschampsia cespitosa subsp. cespitosa Edward Lee 1934-8-17 1153 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  UC1131481  Deschampsia cespitosa subsp. holciformis H. S. Yates 1936-6-16 5677 Humboldt 1 mi. n.e. Samoa; Eureka Quad. Comment
  CAS-BOT-BC192703  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC201773  Deschampsia elongata Doris K. Kildale 1927-7-22 3825 Humboldt Lassecks Peaks near Corral Camp 1661 Comment
  POM207197  Deschampsia elongata Joseph P. Tracy 1901-6-2 1118 Humboldt Immediate vicinity of Eureka 0 Comment
  POM365046  Deschampsia elongata Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek- near Orleans. Comment
  SEINET179616 Image available Deschampsia elongata H. E. Parks 3646 a Humboldt Big Lagoon Comment
  UC76979  Deschampsia elongata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5509 Humboldt near Camp Grant Comment
Read comments
May 17 2012
  UCR19332  Dicentra formosa Rosemary Leen 1977-4-2 s.n. Humboldt Hwy 299, east of Blue Lake. 1220 Comment
  HSC45272  Dicentra formosa Brad Klipfel 1973-4-28 9 Humboldt Along Korbel to Maple Creek Rd., Canyon Creek Comment
  CAS-BOT-BC402408  Dicentra formosa subsp. formosa Joseph P. Tracy 1933-7-16 12794 Humboldt North Coast Ranges. South Fork Mt. 1676 Comment
  SEINET7293093 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1938-1 16172 Humboldt Bald Mountain; at 'Lake Prairie Comment
  HSC71113  Dichelostemma capitatum subsp. capitatum M. A. Baker 1980-5-23 1379 Humboldt Near Buck Mtn. 1524 Comment
  HSC48851  Dichelostemma ida-maia Brad Klipfel 1973-7-15 210 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC98727  Dichelostemma ida-maia Cara Witte 2007-7-20 555 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  SBBG11069  Dichelostemma ida-maia D. E. Breedlove 1961-7-4 649 Humboldt 10.9 mi W of Willow Crk on US Hwy 299 822 Comment
  HSC3027  Dichelostemma ida-maia H. E. Parks, S. T. Parks Jun 1928 259 Humboldt Gills 305 Comment
  HSC3032  Dichelostemma ida-maia Francis Winter 1960-5-7 Humboldt 1.0 mi. S of Tish-Tang Boy Scout Camp entrance 244 Comment
  JEPS508  Dichelostemma ida-maia Joseph P. Tracy 1937-7-19 15450 Humboldt nw slope Buck Mountain 914 Comment
  JEPS5685  Dichelostemma ida-maia Joseph P. Tracy 1923-7-4 6524 Humboldt Northern Coast Ranges, valley of S. Yager Creek 762 Comment
  RSA167431  Dichelostemma ida-maia Joseph P. Tracy, A. H. Murphy, Davis Agriculture College 1951-6-26 19568 Humboldt Vicinity of Twin Lakes and Snow Camp. Comment
  UC1198179  Dichelostemma ida-maia Frank A. Graham 1935-7-27 Humboldt lower end Crogan Hole; Trinity Summit 1463 Comment
  UCSB22162  Dichelostemma ida-maia Keefe, Joseph 1967-7-8 Humboldt Avenue of the Giants, 2.4 miles north of Miranda 121 Comment
  HSC62775  Digitalis purpurea M. Dean Griswold Jr. 1979-5-30 108 Humboldt By Cypress Hall, HSU campus Comment
  SEINET8221173  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna. Comment
  SEINET193360  Diplacus kelloggii Lincoln Constance, Reed C. Collins 1942-1 2894 Humboldt Bluffs at jnct of Klamath & Salmon Rivers, 1mi S of Somes Bar 152 Comment
  CAS-BOT-BC153324  Diplacus layneae Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UCSC000139  Disporum smithii R. Stahelin 1933-5-17 s.n. Humboldt Arcata City Park - Eureka Comment
  RSA183606  Dodecatheon hendersonii G. Bos 1965-5-15 278 Humboldt Berry Summit near U.S. 299. Growing in moss at base of Quercus. 793 Comment
  UC602557  Downingia cuspidata Joseph P. Tracy 1935-5-25 13843 Humboldt Fort Seward 106 Comment
  UC249685  Draba verna Joseph P. Tracy 1922-4-2 5986 Humboldt near Carlotta (Van Duzen River); Northern Coast Ranges, Van Duzen River bar 30 Comment
  HSC58200  Draperia systyla Walter Overton 1979-8-1 12303 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  HSC63143  Draperia systyla M. A. Baker 1979-6-28 949 Humboldt NE side near summit of Packsaddle Ridge just N of the most E tip of the N fork of Mill Creek 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
  SEINET3164219  Drosera rotundifolia N. Dennis 1965-6-30 140 Humboldt Sphagnum bog at Big Lagoon County Park, southwest corner of Big Lagoon Comment
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt Comment
  HSC57850  Drymocallis glandulosa var. reflexa G. L. Clifton 1979-7-31 11357 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC44564  Drymocallis hansenii Brad Klipfel 1973-7-15 184 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC157793  Drymocallis lactea var. lactea Doris Kildale Gillespie 1931-6-7 10628 Humboldt South Fork Mt., Blake Lookout 1726 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
  UCD136407  Dryopteris arguta K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  UC1100621  Eleocharis acicularis Malcolm A. Nobs and S. Galen Smith 1949-8-9 1243 Humboldt town of Blue Lale Mad River (marshy pond on s side) Comment
  CAS-BOT-BC113206  Eleocharis parishii Doris K. Kildale 1927-7-3 3664 Humboldt Willow Creek Flat, swampy outflow from spring. Comment
  UC212885  Elymus X hansenii Joseph P. Tracy 1919-9-23 5279 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UCD61791  Elymus glaucus A. H. Murphy 1951-8-17 91 Humboldt Humboldt-Trinity Co. line: Near Cold Spring Lookout, South Fork Mtn. ca. 15 miles northeast of Bridgeville. 1219 Comment
  UCD61792  Elymus glaucus J. B. Davy; W. C. Blasdale 1899-6-16 5565 Humboldt Alton. Comment
  SEINET200645  Elymus glaucus subsp. glaucus J. P. Tracy 1936-6-9 14889 Humboldt Bear River Ridge 457 Comment
  RSA256587  Empetrum eamesii subsp. hermaphroditum Gary S. Lester 1975-4-6 604 Humboldt Trinidad State Beach: Megwil Point, on Elk Head, N of Trinidad. 15 Comment
  CDA38081  Epilobium ciliatum T. C. Fuller 1958-6-17 17 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC48852  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-7-15 211 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74689  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-7 2456 Humboldt Near Board Camp Mtn. 1478 Comment
  UC1122558  Epilobium ciliatum subsp. ciliatum H. L. Person 1932-7-16 Humboldt hwy n Trinidad; Rock Point Quadrangle Comment
Read comments
Aug 3 2007
  UC668282  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1937-8-12 15649 Humboldt in and around meadow Snow Camp 1402 Comment
  UC1197007  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1914-9-6 4605 Humboldt between High Prairie and Snow Camp (in peat bog); Northern Coast Ranges, Bald Mountain 1219 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
  UC1951301  Epilobium ciliatum subsp. watsonii Robert F. Thorne and P. Everett 1965-8-5 35153 Humboldt Samoa Dunes. Comment
  UC668239  Epilobium densiflorum Joseph P. Tracy 1937-7-19 15463 Humboldt Larrabee Valley 731 Comment
  HSC49630  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3401 Humboldt Mckeown Ranch N of Dinsmore, Mad River 610 Comment
  UC594236  Epilobium minutum S. K. Harris and J. P. Tracy 1936-6-10 3263 Humboldt hills w South Fork of the Trinity River (near river mouth) 640 Comment
  SEINET10890728  Epilobium oreganum Chestnut 1888-8-1 CHESTNUT s.n. Humboldt Grouse Creek, growing rankly along brooks Comment
  UC1198495  Epilobium torreyi Joseph P. Tracy 8744 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC725499  Epipactis gigantea A. A. Heller 1923-7-10 13790 Humboldt river between Scotia and Pepperwood; Eel River Comment
  SEINET181172 Image available Equisetum telmateia Bassett Maguire, R Maguire; C. B. Maguire 1934-6-8 15055 Humboldt Bolling Grove State Park ; Bolling Grove State Park Comment
  UC526938  Equisetum telmateia subsp. braunii Joseph P. Tracy 1934-6-28 13268 Humboldt by Salmon Creek Northern Coast Ranges 9 Comment
  POM118344  Equisetum telmateia var. braunii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  POM257488  Erechtites glomeratus H. E. Parks, S. T. Parks 1937-07 24033 Humboldt Spruce Cove, Trinidad. 61 Comment
  POM356838  Erechtites minimus B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  CAS-BOT-BC299906  Erechtites minimus Henry M. Pollard 1948-7-21 s.n. Humboldt Near Ferrian Ranch, Orleans Comment
  CAS-BOT-BC299914  Erechtites minimus David D. Keck 1938-8-5 4767 Humboldt Big Lagoon Comment
  SD40100  Erechtites prenanthoides Edith A. Purer 1932-7-30 4684 Humboldt South of Orick Comment
  UC1193151  Ericameria arborescens P. J. Zinke 162 Humboldt 1 mi sw Bear Butte; Quad 29C<l?> 609 Comment
  UC34650  Ericameria nauseosa var. speciosa Chesnut and Drew 1888-8-2 Humboldt Grouse Creek Comment
  HSC100430  Erigeron canadensis Carl C. Marshall Oct 1886 347 Humboldt Near North Fork. Comment
  UC468817  Erigeron foliosus var. confinis Joseph Burtt Davy and Walter C. Blasdale Jun 20 1899-Jan 1 1900 5713 Humboldt Hoopa Valley North-Western California, Mendocino Comment
  CAS-BOT-BC300682  Erigeron foliosus var. mendocinus Alice Eastwood 1921-7-21 10660 Humboldt Vanduzen [Van Duzen] River Comment
  CAS-BOT-BC300676  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road, near the summit of ridge 762 Comment
  HSC67444  Erigeron glaucus J. P. Smith 1971-10-6 4955 Humboldt At the end of Murray Rd., McKinleyville Comment
  POM261503  Erigeron glaucus S. K. Harris 1936-6-15 3380 Humboldt Trinidad Head Comment
  CAS-BOT-BC308848  Erigeron glaucus Doris K. Kildale 1926-5-15 1975 Humboldt Fleener Creek Comment
  HSC31641  Erigeron glaucus Glenn McGourty 1974-6-1 81 Humboldt Comment
  UC1199401  Erigeron inornatus var. inornatus Joseph P. Tracy 1939-8-16 16422 Humboldt Grouse Mountain 1524 Comment
  UC164848  Erigeron inornatus var. inornatus Joseph P. Tracy 1911-7-8 3442 Humboldt near mouth of Willow Creek (valley of Trinity River); Trinity River Valley 152 Comment
  HSC102241  Erigeron inornatus var. inornatus Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  HSC97980  Erigeron klamathensis Cara Witte 2007-7-8 448 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  HSC95874  Erigeron maniopotamicus Thomas W. Nelson, Sydney Carothers 2004-6-18 9253 Humboldt Board Camp Mountain Road off Forest Service Road 49N38, 1 mile from junction with Forest Service Road 1. 1482 Comment
Read comments
Jun 21 2014
  CAS-BOT-BC214592  Erigeron philadelphicus Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet ranch Comment
  RSA47128  Erigeron philadelphicus Doris K. Kildale 1925-6-20 717 Humboldt Big Lagoon Comment
  UC164845  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1911-7-4 3304 Humboldt along, near its mouth Willow Creek (tributary of Trinity River); Northern Coast Ranges, Trinity River, Willow Creek 182 Comment
  UC581735  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1935-5-30 13920 Humboldt near Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC259181  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River Comment
  HSC46971  Eriogonum latifolium J. P. Smith, Thomas W. Nelson 1977-6-30 9209 Humboldt Samoa Peninsula just E of the drag strip. Comment
  CAS-BOT-BC259542  Eriogonum luteolum var. luteolum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  UC1198102  Eriogonum luteolum var. luteolum Joseph P. Tracy 1920-8-15 5390 Humboldt at mouth of Bluff Creek on Klamath River Klamath River, Bluff Creek 152 Comment
  HSC43083  Eriogonum nudum var. nudum Brad Klipfel 1973-8-3 304 Humboldt N Trinity Mtn. 1860 Comment
  UC54741  Eriogonum nudum var. nudum P. E. Goddard 1901-7-12 75 Humboldt Hupa Comment
  HSC99071  Eriogonum nudum var. nudum Cara Witte 2007-7-9 467 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  CAS-BOT-BC261724  Eriogonum nudum var. oblongifolium Doris K. Kildale 1926-5-9 1991 Humboldt Kneeland Prairie, Rock Pile 853 Comment
  CAS-BOT-BC261727  Eriogonum nudum var. oblongifolium Harley P. Chandler 1901-6-1 1442 Humboldt Klamath River 304 Comment
  CAS-BOT-BC261729  Eriogonum nudum var. oblongifolium Alice Eastwood 1923-8-16 12328 Humboldt Carlotta Comment
  SEINET11945862  Eriogonum nutans var. nutans Tiehm 1995-5-21 12092 Humboldt extreme S end of Bilk Creek Mts, just NW of Sod House near where the Quinn River crosses hwy 140 1326 Comment
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Jun 2 2019
  HSC74698  Eriogonum umbellatum Gail Newton 1981-7-24 2291 Humboldt Near Chaparral Mtn. 1512 Comment
  CAS-BOT-BC267967  Eriogonum umbellatum var. argus Doris K. Kildale 1925-8-16 1219 Humboldt Trinity Summit 1917 Comment
  HSC43084  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-8-3 300 Humboldt N Trinity Mtn. 1860 Comment
  UC412902  Eriogonum umbellatum var. nelsoniorum P. E. Goddard 1906-6 657 Humboldt Lasseck Pk. Comment
  HSC54754  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-7-26 10278 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC97920  Eriogonum umbellatum var. umbellatum Cara Witte 2007-6-14 270 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  HSC53823  Eriophyllum lanatum var. achilleoides Griswold, Butler 1979-7-10 6269 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC97922  Eriophyllum lanatum var. achilleoides Cara Witte 2007-6-19 299 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  UC1199141  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1934-7-6 13664 Humboldt Iaqua; North Coast Ranges, Iaqua 609 Comment
  UC169040  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1912-7-26 3837 1/2 Humboldt Kneeland Prairie Northern Coast ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC301013  Eriophyllum lanatum var. achilleoides W. R. Dudley 1899-6-21 s.n. Humboldt Eel River Road on rocks above Pepperwood Comment
  RSA12442  Eriophyllum lanatum var. achilleoides C. B. Wolf 1934-7-1 5851 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  SEINET11850725  Eriophyllum lanatum var. achilleoides J. P. Tracy 1950-1 18790 Humboldt at Jenk's Ranch, 7 mi N of Harris Comment
  CAS-BOT-BC301183  Eriophyllum lanatum var. arachnoideum Frank W. Peirson 1926-7-12 7029 Humboldt West slope Coast Range back of Orick Comment
  RSA15568  Eriophyllum lanatum var. arachnoideum C. B. Wolf 1927-8-29 1193 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  CAS-BOT-BC301388  Eriophyllum lanatum var. grandiflorum Harley P. Chandler 1901-6-1 1301 Humboldt North Coast Ranges. Hupa Indian Reservation 152 Comment
  RSA21076  Eriophyllum lanatum var. integrifolium C. B. Wolf 1937-8-13 9236 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  JEPS34643  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1933-8-6 12936 Humboldt French Camp Ridge Comment
  SEINET11850778  Eriophyllum lanatum var. lanceolatum H. P. Chandler 1901-1 1403 Humboldt Klamath River, North Coast Ranges 244 Comment
  UC176874  Erodium cicutarium Joseph P. Tracy 1912-6-9 3675 Humboldt Alton Northern Coast Region 30 Comment
  UC1714546  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1912-10-20 4001 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC1199175  Erysimum capitatum Joseph P. Tracy 1922-5-29 6078 Humboldt head of South Yager Creek Northern Coast Ranges 762 Comment
  HSC44066  Erysimum capitatum var. capitatum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3697 Humboldt Rd. 2S08 between Alder Spring and Pine Mtn. 1585 Comment
  HSC57415  Erysimum capitatum var. capitatum G. L. Clifton, Terry Griswold 1979-7-26 10177 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC48866  Erysimum perenne Brad Klipfel 1973-6-10 61 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC70931  Erythronium californicum R. York 1980-5-18 558 Humboldt Near Black Mtn. 1006 Comment
  JEPS502  Erythronium grandiflorum Joseph P. Tracy 1933-7-11 12708 Humboldt Grouse Mountain 1524 Comment
  HSC85455  Erythronium oregonum subsp. leucandrum Andrew Buchanan, et al. 1986-4-19 18 Humboldt Horse Mtn. junction with Titlow Hill Ski Area access rd., E slope of the hill at edge of pine forest Comment
  HSC73143  Eschscholzia californica M. A. Baker 1980-5-18 1331 Humboldt Near Black Mtn. 792 Comment
  HSC79431  Eschscholzia californica Kenneth Clark 1980-3-22 525 Humboldt On access trail above Dead Man's Gulch, Shelter Cove 122 Comment
  RSA167199  Eucephalus glabratus Joseph P. Tracy 1941-8-24 17043 Humboldt South Fork Mountain, near McKay Camp Comment
  HSC44570  Eucephalus ledophyllus var. ledophyllus Brad Klipfel 1973-7-15 189 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC5687  Euchiton sphaericus J. P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  HSC100937  Euonymus occidentalis Miss Handy Jun 1886 335 Humboldt Maple Cr. Comment
  HSC79446  Euphorbia crenulata Kenneth Clark 1981-5-2 1358 Humboldt 0.5 mi. W of Dead Man's Gulch. 145 Comment
  UC1198971  Euphorbia crenulata Joseph P. Tracy 1919-5-31 5156 Humboldt near Willow Creek (slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  HSC28197  Euphorbia helioscopia Thomas W. Nelson 1973-4-25 799 Humboldt On H.S.U. campus, beside Forestry Dept. Greenhouse. Comment
  HSC12567  Euphorbia peplus D. La Conte 1970-6-15 6 Humboldt Comment
  HSC66404  Eurybia radulina Ruby Van Deventer 1950-8-15 Humboldt Myers Falt 61 Comment
  UC166500  Euthamia occidentalis Joseph P. Tracy 1905-10-1 2395 Humboldt near mouth of Elk River; Northern Coast Range, region about Humboldt Bay 0 Comment
  UC581767  Euthamia occidentalis Joseph P. Tracy 1931-9-7 9636 Humboldt Northern Coast Ranges, Trinity River Valley; Lack Pond, opposite mouth of Willow Creek 152 Comment
  HSC12021  Fallopia japonica D. Santana 1970-10-15 69 Humboldt 10th and G St. in parking lot Comment
  HSC12592  Fallopia japonica C. Kline 1970-11-15 70 Humboldt Downtown Arcata, empty lot Comment
  OBI10874  Fallopia sachalinensis T. C. Fuller 1968-7-30 17447 Humboldt NE side of Hwy 101 fwy overpass, Fields landing Comment
  HSC73583  Festuca californica Gail Newton 1980-7-14 1491 Humboldt Near Last Chance Ridge. 1219 Comment
  BLMAR23  Festuca myuros Brad Barr June, 1982 23 Humboldt King range, Smith cabin Comment
  CAS-BOT-BC278810  Festuca occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  CAS-BOT-BC278816  Festuca occidentalis J. P. Tracy 1900-5-22 796 Humboldt Immediate vicinity of Eureka 152 Comment
  UCD66180  Festuca occidentalis A. H. Murphy 1948-6-30 Humboldt 2 miles west of McComb's Ranch, Bald Hills, 7-8 miles southeast of Orick. 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
  HSC9974  Festuca rubra D. J. Wilder 1965-4-25 11 Humboldt 4 mi. from Arcata on Fickle Hill Rd. Comment
  CAS-BOT-BC278972  Festuca rubra W. R. Dudley 1893-6-20 s.n. Humboldt South Fork of Eel River Comment
  HSC58702  Festuca subulata Griswold, Butler 1979-7-11 7033 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC70481  Festuca subulata Gail Newton 1980-7-20 1632 Humboldt Near Bell Swamps 1426 Comment
  POM126172  Festuca subuliflora Joseph P. Tracy 1900-5-22 801 Humboldt Immediate vicinity of Eureka. 0 Comment
  SEINET200688 Image available Festuca subuliflora J. P. Tracy 1900-5-22 801 Humboldt Immediate vicinity of Eureka 0 Comment
  UC492174  Fragaria Joseph P. Tracy 1932-7-16 10630 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC59396  Fragaria chiloensis Rick Lundquist 1979-4-25 42 Humboldt .3 mi. S of Samoa on Samoa Blvd. 0 Comment
  HSC79429  Fragaria vesca Kenneth Clark 1980-3-23 532 Humboldt South fork of Dead Man's Gulch 76 Comment
  UC1198731  Fragaria vesca Joseph P. Tracy 1921-4-24 5459 Humboldt Phillipsville Northern Coast Ranges (slopes and groves facing South Fork of Eel River) 121 Comment
  CAS-BOT-BC457924  Fragaria vesca subsp. californica Doris K. Kildale 1927-4-17 3100 Humboldt Briceland Bridge, 1/2 mi. west of Garberville. 114 Comment
  CAS-BOT-BC457927  Fragaria vesca subsp. californica Doris Kildale Gillespie 1931-6-7 10643 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  CAS-BOT-BC457929  Fragaria vesca subsp. californica Alice Eastwood; John Thomas Howell 1937-6-22 4718 Humboldt Near Harris Comment
  UC492173  Fragaria virginiana subsp. platypetala Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  SD22835  Frangula californica subsp. californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  HSC72613  Frangula californica subsp. occidentalis J. P. Smith 1977-7-3 9261 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  CAS-BOT-BC59966  Frangula purshiana H. E. McMinn 1922-8-5 347 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC59970  Frangula purshiana L. R. Abrams 1922-6-25 8258 Humboldt N. of Mad River near Arcata. Comment
  CAS-BOT-BC59992  Frangula purshiana Doris K. Kildale; J. W. Gillespie 1929-6-25 8394 Humboldt Pive's Pasture, Eureka. Comment
  JEPS44086  Fraxinus latifolia W. L. Jepson 1903-6-15 2205 Humboldt Briceland Comment
  CAS-BOT-BC136030  Fritillaria affinis Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbell Comment
  HSC15543  Fritillaria affinis A. H. Teshima 1963-5-8 34 Humboldt Moonstone Beach area Comment
  UC1197623  Fritillaria affinis Joseph P. Tracy 1936-7-7 16042 Humboldt Grouse Mountain 1524 Comment
  HSC15544  Fritillaria affinis W. D. Stevens 1964-3-18 12 Humboldt 1.0 mi. S of Trinidad on Old Hwy. 101 Comment
  JEPS30796  Fritillaria purdyi Mrs. Barnwell 1923-4-28 Humboldt Northern Coast Ranges, Chalk Mountain Chalk Mountain; Northern Coast Ranges, Chalk Mountain 762 Comment
  UC1197631  Fritillaria purdyi Mrs. Barnwell 1923-4-28 7488 Humboldt Chalk Mountain; Northern Coast Ranges, Chalk Mountain 762 Comment
  CAS-BOT-BC422450  Fumaria officinalis Joseph P. Tracy 1949-4-1 18277 Humboldt Eureka 30 Comment
  HSC72984  Galium ambiguum subsp. siskiyouense M. A. Baker 1980-7-11 2773 Humboldt Near Red Mtn. 1341 Comment
  HSC41592  Galium ambiguum subsp. siskiyouense Thomas W. Nelson, Jane P. Nelson 1977-7-1 3558 Humboldt Along ridge between Bear Creek and Blanket Creek 1494 Comment
  HSC96241  Galium aparine Kaylea Eickhoff, Cara M. Witte 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  HSC37909  Galium divaricatum Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC71828  Galium grayanum var. grayanum Thomas W. Nelson, Jane P. Nelson 1980-6-27 5958 Humboldt Saddle E of Mt. Lassic 1677 Comment
  JEPS6513  Galium mollugo Harold E. Parks and Joseph P. Tracy 1937-7-16 11451 Humboldt near Trinidad; near Trinidad 60 Comment
  UCR45370  Galium porrigens var. porrigens Kenneth Clark 1980-6-14 679 Humboldt Shelter Cove. Top of north fork Dead Man's Gulch 198 Comment
  JEPS6536  Galium triflorum W. L. Jepson 1902-6 1957 Humboldt Redwood Creek Comment
  CAS-BOT-BC303393  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta 60 Comment
  JEPS34051  Gamochaeta ustulata Lincoln Constance 1934-5-24 627 Humboldt bordering on e side Lower Look Prairie; Bull Creek Region, South Fork Eel River 121 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
  HSC72801  Garrya buxifolia Gail Newton 1980-6-17 212 Humboldt Near Onion Mtn. 1341 Comment
  UC1196887  Garrya elliptica Joseph P. Tracy 1921-2-27 5414 Humboldt Drakes Hill; Northern Coast Region 30 Comment
  UC545824  Garrya elliptica H. E. Parks 1933-2 4287 Humboldt Trinidad Comment
  HSC82186  Garrya fremontii Thomas W. Nelson 1977-6-15 3444 Humboldt Along old road to ski area 1372 Comment
  HSC8400  Garrya fremontii D. E. Anderson 1965-4-24 3537 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  UC630638  Garrya fremontii Joseph P. Tracy 1939-9-10 16499 Humboldt Willow Creek; Trinity River Valley 152 Comment
  RSA120510  Gastridium phleoides S. S. Tillett 1956-7-6 609 Humboldt South slope along Bar Shanty Road, 5 miles from Orleans. 488 Comment
  CAS-BOT-BC282614  Gastridium phleoides Harley P. Chandler 1901-6-1 1506 Humboldt Klamath River 426 Comment
  UCD66720  Gastridium phleoides Joseph P. Tracy 1936-6-10 14926 Humboldt West of mouth of South Fork of Trinity River. 457 Comment
  UCD66721  Gastridium phleoides Harley P. Chandler 1901-6-1 1506 Humboldt Klamath River. 426 Comment
  HSC53968  Gaultheria ovatifolia Griswold, Butler 1979-7-11 7025 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC1222635  Gaultheria ovatifolia Joseph P. Tracy 1951-6-14 19417 Humboldt Snow Camp 1402 Comment
  HSC22505  Gaultheria shallon J. R. Eichelberger 1964-5-5 68 Humboldt N side of the Mad River at the entrance to Azalea State Reserve Comment
  HSC59055  Gaultheria shallon Thomas Wood 1979-5-4 155 Humboldt Big Lagoon Bog 2 Comment
  CDA38830  Gaultheria shallon T. R. Haig 1960-6-15 4578 Humboldt 8 miles north of Trinidad. 0 Comment
  UC35398  Gayophytum diffusum subsp. parviflorum Chesnut and Drew Humboldt Comment
  UC1196958  Gayophytum humile Joseph P. Tracy 1933-7-26 12918 Humboldt Grouse Mountain 1524 Comment
  UC562303  Gentiana sceptrum Joseph P. Tracy 1924-8-3 6768 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UCR80278  Gentiana sceptrum R. S. Woglum 1938-8-29 2038 Humboldt North Coast, grounds of Trinidad State Park, south of Trinidad 38 Comment
  UC1198643  Gentiana sceptrum Joseph P. Tracy 1938-9-25 16166 Humboldt Lake Prairie Bald Mountain 1066 Comment
  UC1197402  Geranium carolinianum Joseph P. Tracy 1935-5-25 13875 Humboldt Fort Seward 106 Comment
  UC502970  Geranium carolinianum Joseph P. Tracy 1927-5-8 7959 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Region Comment
  HSC8646  Geranium dissectum R. J. Vernimen 1963-5-11 55 Humboldt 0.5 mi. off Samoa Rd. behind Georgia-Pacific dump, 7.5 mi. SW of Arcata Comment
  UC169886  Geranium dissectum Harley P. Chandler Jun 1901 1420 Humboldt Klamath River North Coast Ranges 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
  UC249572  Geranium oreganum Joseph P. Tracy 1922-6-18 6094 Humboldt Head of Middle Yager Creek Northern Coast Ranges 762 Comment
  SD113958  Geranium pilosum Darley F. Howe 1961-8-1 3101 Humboldt 3.3 miles north of Trinidad on Highway 101. Comment
  SEINET196700  Gilia capillaris Joseph P. Tracy 1932-7-10 10374 Humboldt Trinity Summit Corral Prairie in wet meadow 1585 Comment
  HSC32885  Gilia capitata Thomas W. Nelson, James Nelson 1973-5-28 937 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC54667  Gilia capitata Overton, Butler 1979-7-25 9904 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  BLMAR433  Gilia capitata subsp. pacifica Jennifer Anthony-Wheeler 2008-6-13 433 Humboldt King range, growing in Prosper Prairie near hdwaters of Mill Creek 624 Comment
  BLMAR597  Gilia millefoliata Jennifer Wheeler 2010-5-11 597 Humboldt Samoa Peninsula, Samoa Dunes Engangered Plant Protection Area 3 Comment
  CHSC68788  Gilia millefoliata Vernon Oswald 1997-6-5 8543 Humboldt North Spit of Humboldt Bay 3.7 mi south of Hwy. 255, Orvil Wilson Memorial Off-road Vehicle Park opposite the junction of New Navy Base Rd. and Lincoln Ave. 6 Comment
  HSC100595  Gilia tenella Carl C. Marshall 469 Humboldt Near Garberville. Comment
  UC1197905  Gilia tricolor subsp. tricolor Joseph P. Tracy 1929-5-5 8561 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River, Miranda (along South Fork of Eel River) 121 Comment
  SEINET10464622  Githopsis specularioides Tracy 1913-6-19 TRACY 4207 Humboldt Dinsmore's Ranch; in valley of Van Duzen River opposite Buck Mountain 762 Comment
  RSA246693  Glaux maritima Robert F. Thorne, Percy C. Everett 1965-8-7 3520 Humboldt Samoa Peninsula. 0 Comment
  UC1191701  Glaux maritima Malcolm A. Nobs, S. Galen Smith 1949-8-3 1201 Humboldt 2 mi n of Eureka (bordering Humboldt Bay); Humboldt Bay Comment
  UC562469  Glaux maritima Joseph P. Tracy 1926-8-29 7780 Humboldt around Humboldt Bay (Northern Coast Region, Mad River Slough); Northern Coast Region, Mad River Slough 3 Comment
  CAS-BOT-BC218431  Glehnia littoralis subsp. leiocarpa L. R. Abrams 1916-7-18 6140 Humboldt At Trinidad Comment
  HSC93526  Glehnia littoralis subsp. leiocarpa Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 748 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  HSC38427  Glyceria elata D. E. Anderson, J. P. Smith 1971-6-14 - 1049 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  HSC96582  Glyceria elata Gordon Leppig, Tony LaBanca 2005-6-6 2247 Humboldt Pacific Lumber Co. land, Redwood House Rd., Hely Creek headwaters pond. 630 Comment
  UC34100  Glyceria elata Joseph Burtt Davy 1899-6-9 5367 Humboldt Harris Comment
  HSC70482  Glyceria striata Gail Newton 1980-7-20 1636 Humboldt Near Bell Swamps 1426 Comment
  RSA168834  Gnaphalium canescens subsp. thermale Joseph P. Tracy 1942-8-30 17303 Humboldt Humboldt County: Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC302533  Gnaphalium palustre Joseph P. Tracy 1932-7-13 10513 Humboldt Trinity Summit. Open places at Corral Prairie 1584 Comment
  HSC54227  Goodyera oblongifolia Griswold, Butler 1979-7-12 7293 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC98555  Goodyera oblongifolia Cara Witte 2007-9-3 643 Humboldt Forest Service Road 5N09. 1 mile east of intersection with National Forest 1. 1332 Comment
  POM225484  Goodyera oblongifolia Philip A. Munz 1936-8-10 14336 Humboldt Van Duzen River, 15 miles east of Fortuna Comment
  JEPS79300  Gratiola ebracteata Wm. C. Vinyard and Scott W. Hilton 1980-9-16 800916 .1 Humboldt near summit of Snowcamp Mnt (ne side of Snowcamp Lake); near summit Snowcamp Mnt, ne side Snowcamp Lake 1371 Comment
  CAS-BOT-BC304729  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt Northern Coast Ranges. Near Garberville 121 Comment
  HSC39110  Grindelia hirsutula Gary S. Lester 1974-8-24 528 Humboldt Arcata salt marsh on Humboldt Bay at the 'G' St. oxidation plant 1 Comment
  UC1552453  Grindelia hirsutula R. D. Goeden 1987-9-2 21 Humboldt on bank above Mattole Road; Cape Mendocino (Cape Ridge) 182 Comment
  SEINET10958318 Image available Grindelia stricta var. platyphylla J. A. Moore, Julian A. Steyermark 1931-8-9 Moore 3687 Humboldt On sandy seashore at base of cliffs. 10 miles north of Trinidad, Humboldt County. Exposed sandy places along seashore. 1 Comment
  SEINET10614320 Image available Grindelia stricta var. stricta J. A. Moore, Julian A. Steyermark 1931-8-9 Moore 3686 Humboldt Salt meadows along canal, Eureka. Comment
  HSC56354  Hackelia bella Griswold, Butler 1979-7-10 6325 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA167310  Hackelia californica Joseph P. Tracy 1948-8-15 18154 Humboldt Trinity Summit, on ridge 2 miles east of Grove s Prairie. 1524 Comment
  HSC58066  Hastingsia alba G. L. Clifton, Griswold 1979-8-1 11944 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC508212  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Wet or seepy ground, serpentine formation, Horse Mountain 1463 Comment
  HSC102526  Hastingsia alba M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1513 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC3687  Hastingsia alba H. N. Bolander 1860-1-1 6559 Humboldt Red Mountains Comment
  CAS-BOT-BC302441  Hazardia whitneyi var. discoidea Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC180187  Helenium bigelovii Joseph P. Tracy 1914-7-4 4540 Humboldt at Murphy Ranch, High Prairie on Bald Mountain Northern Coast Ranges, Bald Mountain 1066 Comment
  UC175963  Helenium bolanderi Joseph P. Tracy 1912-7-24 3808 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  HSC93468  Helenium bolanderi Gordon Leppig 1998-8-23 1077 Humboldt Big Lagoon County Park 2 Comment
  UC175964  Helenium bolanderi Joseph P. Tracy 1912-7-22 3795 Humboldt between Fields Landing and Elk River; Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC123524  Helenium decurrens Joseph Prince Tracy 1901-5-1 1204 (Harley Chandler's number?) Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  BLMAR560  Helenium puberulum Jennifer Wheeler 2009-7-21 560 Humboldt Headwaters Forest Reserve, wet depression along trail north of Falk 60 Comment
  UC198637  Hemitomes congestum Joseph P. Tracy 1916-6-25 4740 Humboldt between Little River and Redwood CreekNorthern Coast Ranges Redwood Creek (Northern Coast Ranges); Northern Coast Ranges 304 Comment
  HSC57209  Hemizonella minima Griswold, Butler 1979-7-12 7189 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC71740  Hemizonia congesta subsp. tracyi M. A. Baker 1980-6-26 2420 Humboldt Near Sims Creek 610 Comment
  RSA388122  Hemizonia congesta subsp. tracyi C. B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  RSA259569  Hemizonia tracyi Thomas W. Nelson, Jane, James Nelson 1975-6-21 1950 Humboldt Hwy 36, 5 miles east of Bridgeville Comment
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Jan 3 2011
  UC906656  Heracleum lanatum Joseph P. Tracy 1947-8-24 17915 Humboldt Trinity Summit near Box Camp; Trinity Summit 1524 Comment
  HSC90261  Heracleum maximum Jean Hanson 1980-5-24 73 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka. W end of island Comment
  UC1198757  Heteromeles arbutifolia Joseph T. Gregory 1935-12-21 Humboldt 4 mi n Willow Creek (Trinity River bluffs, at the Meitz Place); Trinity River 121 Comment
  UC198602  Heteromeles arbutifolia Miss Landergen Dec 1916 Humboldt Fort Seward; Northern Coast Ranges 91 Comment
  JEPS2421  Heterotheca oregona var. oregona W. L. Jepson 1936-8-12 17875 Humboldt Philipsville, gravel bars and lowest terrace of South Fork Eel River South Fork Eel River Comment
  RSA298143  Heterotheca oregona var. rudis J. P. Smith 1971-10-9 4987 Humboldt Mad River above the Fish Hatchery. Comment
  UC205160  Heterotheca oregona var. rudis Joseph P. Tracy 1919-9-27 5305 Humboldt near Mouth of Willow Creek (gravel bar of Willow Creek); Northern Coast Ranges, Valley of the Trinity River, Willow C 152 Comment
Read comments
Jul 15 2016
  UC485473  Heterotheca oregona var. rudis unknown Humboldt Chandler, <rest illegible> Klamath River Comment
  UC1222390  Heuchera micrantha Joseph P. Tracy 1950-6-8 18716 Humboldt 2 mi s Ferndale (Wild Cat Road, at the Sand Cut) 304 Comment
  UC902003  Heuchera micrantha Joseph P. Tracy 1947-4-27 17673 Humboldt roadside near top of Wolverton Gulch (1/2 mi w of tow) 152 Comment
  CAS-BOT-BC420720  Heuchera micrantha var. diversifolia M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  RSA298359  Heuchera micrantha var. hartwegii J. P. Smith 1973-5-26 6825 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  JEPS36663  Hieracium albiflorum W. L. Jepson 1932-7-26 16408 Humboldt Bull Creek 106 Comment
  UC582415  Hieracium albiflorum Joseph P. Tracy 1932-7-12 10433 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC312396  Hieracium albiflorum Henry M. Pollard 1947-9-1 s.n. Humboldt Naer summit of Somes Mountain, Orleans region 1219 Comment
  UC419046  Hieracium albiflorum H. E. Parks, J. P. Tracy 1930-9-15 768 Humboldt near Kneeland; Bald Hills Comment
  HSC57619  Hieracium greenei G. L. Clifton, Griswold 1979-7-25 10744 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC74410  Hieracium scouleri Gail Newton 1980-8-10 2024 Humboldt Near Blake Mtn. 1798 Comment
  UC582420  Hieracium scouleri Joseph P. Tracy 1932-7-17 10659 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  POM160893  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt Around Humboldt Bay, old Kneeland Road 305 Comment
  UC1196930  Hippuris vulgaris Joseph P. Tracy 1934-7-2 13284 Humboldt mouth of Little R. 1 Comment
  UC183602  Hippuris vulgaris Joseph P. Tracy 1912-7-7 3737 Humboldt ditch at Bucksport (Humboldt Bay Region); Northern Coast Region, , Bucksport 0 Comment
  CAS-BOT-BC280736  Holcus lanatus Ira L. Wiggins 1930-6-25 4614 Humboldt 2 miles north of Samoa 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
  HSC90680  Holcus mollis Gail Newton 1982-6-10 3589 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC149901  Holodiscus discolor Doris K. Kildale 1926-9-5 2658 Humboldt Lasseck's Peaks, Signal Peak 1791 Comment
  HSC71582  Holodiscus discolor Gail Newton 1980-6-16 189 Humboldt Near Onion Mtn. 1280 Comment
  UC1198703  Holodiscus discolor Joseph P. Tracy 1911-7-6 3362 Humboldt along road between Three Creeks and Mouth of Willow Creek, Northern Coast Ranges Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC154211  Holodiscus discolor Joseph P. Tracy 1901-7-31 1231 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  UC154212  Holodiscus discolor J. P. Tracy 1909-7-3 3002 Humboldt immediate vicinity of Eureka (near Ocean View Cemetery) 0 Comment
  SEINET3351072 Image available Hordeum Joseph P. Tracy 1942-1 Humboldt Frequent in moist grassy meadow. 91 Comment
  HSC39908  Hordeum brachyantherum J. P. Smith, Steve Selva 1970-6-30 4109 Humboldt Comment
  HSC102144  Hordeum brachyantherum subsp. brachyantherum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1051 Humboldt Patterson Meadows 1566 Comment
  HSC10120  Hordeum marinum subsp. gussoneanum True Hoyle 1967-7-9 27967 Humboldt By the cattle guard at the W side of the Roy Fulton Ranch, Iaqua Gun Club, Big Bend of the Mad River above Maple Creek. 610 Comment
  HSC32518  Hordeum marinum subsp. gussoneanum D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-17 5715 Humboldt McKeown Ranch, N of Dinsmore Comment
  CAS-BOT-BC289564  Hordeum marinum subsp. gussoneanum Henry M. Pollard 1946-8-27 s.n. Humboldt South sid eof Klamath River near Bryce Creek, Orleans region Comment
  CAS-BOT-BC284756  Hordeum murinum subsp. glaucum Kenneth Clark 1980-5-10 644 Humboldt Shelter Cove. Point Delgada 3 Comment
  HSC35867  Horkelia californica var. californica Thomas W. Nelson, James Nelson 1975-8-5 2127 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. Comment
  CAS-BOT-BC144081  Horkelia sericata Harley P. Chandler 1901-6-1 1543 Humboldt Klamath RIver 426 Comment
  CAS-BOT-BC537897  Horkelia tridentata var. flavescens Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC70929  Hosackia crassifolia R. York 1980-5-18 581 Humboldt Near Black Mtn. 792 Comment
  CHSC35550  Hosackia rosea D. E. Anderson 1965-5-8 3666 Humboldt Hw. 299, east of Blue Lake, between bridge over North Fork Mad River and Lord Ellis Summit. Comment
  UC1762196  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt Trinity Summit, ridges E of Corral Prairie 1828 Comment
  UC562601  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  UC562600  Hydrophyllum occidentale Joseph P. Tracy 13955 Humboldt lower foothills nw slope Buck Mountain 792 Comment
  UC582692  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-2 15403 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC582691  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-25 15538 Humboldt Little Hors-Linto Creek; Trinity Summit 1371 Comment
  BLMAR562  Hypericum Jennifer Wheeler 2009-7-21 562 Humboldt Headwaters Forest Reserve, along Elk River trail just past yew trees on right 60 Comment
  HSC101988  Hypericum anagalloides M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 887 Humboldt Patterson Meadows 1555 Comment
  HSC53845  Hypericum anagalloides Griswold, Butler 1979-7-10 6307 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  CDA30714  Hypericum perforatum M. K. Beyers, I. Shepardson 2009-9-13 250 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  UC1193380  Hypericum perforatum R. H. Neuns 1950-6-12 121 Humboldt on Eel R. between Alder Point and Fort Seward; Quad. 29D2, Eel R. 152 Comment
  CAS-BOT-BC401227  Hypericum perforatum Doris K. Kildale 1927-7-3 3655 a Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC401229  Hypericum perforatum Doris K. Kildale 1928-6-24 7061 Humboldt Redwood Creek at Berry's Comment
  HSC67967  Hypericum perforatum J. P. Smith 1973-5-26 6830 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC249878  Hypochaeris glabra Joseph P. Tracy 1924-5-17 6678 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  UC32896  Hypochaeris radicata Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5490 Humboldt near Camp Grant; North-Western California Comment
  CAS-BOT-BC206844  Iliamna latibracteata Joseph P. Tracy 1949-9-1 18535 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  CAS-BOT-BC206847  Iliamna latibracteata C. B. Wolf 1934-7-3 5909 Humboldt 3 miles north of Orick on Redwood Highway, Davison's Ranch on Prairie Creek 60 Comment
  CAS-BOT-BC206849  Iliamna latibracteata Carl Purdy 1938-8-1 s.n. Humboldt Willow Creek Comment
  RSA12527  Iliamna latibracteata Carl B. Wolf 1934-7-3 5907 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  HSC55330  Ipomopsis aggregata Griswold, Butler 1979-7-12 7170 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC909150  Ipomopsis aggregata Joseph P. Tracy 1932-7-12 10440 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1565799  Iris douglasiana R. Spellenberg 1990-7-10 10240 Humboldt 11 mi s Berry Summit (on Calif. Hwy. 299) on U.S.F.S. 1 (11 air mi e of Burnt Ranch, extreme e edge of Humboldt County) 1432 Comment
  UC176171  Iris douglasiana Joseph P. Tracy 1912-7-14 3752 Humboldt Eureka; Northern Coast Region 0 Comment
  RSA0009453  Iris douglasiana Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC709435  Iris macrosiphon Joseph P. Tracy 1941-3-23 16808 Humboldt 3 mi w Bridgeport (near e margin of redwood belt through s Humboldt County) 198 Comment
  RSA135820  Iris purdyi E. K. Balls 1957-5-25 22605 Humboldt 12.1 miles southwest from Dinsmores, State Highway 36 335 Comment
  RSA135894  Iris purdyi Lee W. Lenz 1953-5-17 18320 Humboldt 4.5 miles west of Willow Creek, Highway 299 Comment
  RSA135933  Iris purdyi Lee W. Lenz, E. K. Balls 1955-5-16 20743 Humboldt 2.3 miles southeast of Upper Mattole, on Old Coast Road to Ettersburg 91 Comment
  JEPS88855  Iris tenax subsp. klamathensis Carol A. Wilson 1992-5-15 92 -ph20 Humboldt just s Orleans (along Icesee Road from where it leaves Hwy 96 to top of hill) Comment
  UC1046540  Iris tenuissima R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3414 Humboldt ridge between Mad River and Redwood Creek (about Snow Camp, Bald Mountain); Bald Mountain, Snow Camp 1432 Comment
  UC429166  Iris tenuissima P. E. Goddard 1907-5-29 103 Humboldt Van Duzen Comment
  JEPS79909  Isatis tinctoria Joseph P. Tracy 1939-4-29 16239 Humboldt Klamath River at mouth of Slate Creek; Klamath River, Slate Creek 121 Comment
  SEINET11261291  Jaumea carnosa C. C. Harris, S. K. Harris 1939-8-26 994 Humboldt South shore of Humboldt Bay.; 0 Comment
  RSA168844  Juncus articulatus Joseph P. Tracy 1938-8-14 16114 Humboldt Hillside west of mouth of South Fork. Trinity River Valley , near the South Fork 183 Comment
  CHSC105149  Juncus bolanderi Peter F. Zika 2008-10-19 24230 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach (North Coast NCo) 110 Comment
  HSC23143  Juncus bufonius Norman Dennis 1965-6-19 128 Humboldt 0.25 mi. S and 1 mi. E of jct. of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 3 mi. SE of Kneeland 793 Comment
  POM208990  Juncus bufonius Lincoln Constance 1934-6-12 862 Humboldt S Fork of Eel River, N end of Dyerville bridge, Humboldt Redwood Park. 46 Comment
  UCD141493  Juncus effusus K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 609 Comment
  UC184935  Juncus effusus subsp. pacificus Joseph P. Tracy 1912-7-25 3820 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1152106  Juncus effusus subsp. pacificus Joseph P. Tracy 1930-11-9 9247 Humboldt just n Arcata (on Redwood Highway) Comment
  SDSU11740  Juncus effusus var. brunneus D. F. Howe 1961-8-2 3119 Humboldt 8.5 miles east of Orick on Bald Mt. road. 610 Comment
  BLMAR312  Juncus ensifolius Jennifer Anthony-Wheeler July, 2002 312 Humboldt South Spit, near trail to salt marsh 6 Comment
  UC1103035  Juncus ensifolius Joseph P. Tracy 1921-10-16 5970 Humboldt near Willow Creek (mouth of South Fork Trinity); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1103045  Juncus falcatus subsp. falcatus Joseph P. Tracy with H. E. Parks 1924-8-3 6746 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  RSA129408  Juncus hesperius H. S. Yates 1936-6-23 5867 Humboldt 2 miles northwest of Fortuna. 30 Comment
  HSC14026  Juncus lescurii David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  RSA246772  Juncus nevadensis var. inventus Robert F. Thorne, Percy C. Everett 1965-8-9 35312 Humboldt Big Lagoon. 3 Comment
  RSA168869  Juncus phaeocephalus var. phaeocephalus Joseph P. Tracy 1934-7-13 13391 Humboldt Dow s Prairie. 61 Comment
  SEINET10796051 Image available Juncus tenuis Unknown 1883-1 Rattan s.n. Humboldt Comment
  HSC4845  Kalmia polifolia J. O. Sawyer 1968-9-27 727 Humboldt Near Waterdog Lakes and N Trinity Mtn. 1768 Comment
  HSC32539  Keckiella corymbosa Thomas W. Nelson 1973-8-19 1116 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC50858  Keckiella corymbosa Walter Overton, Marvin Butler 1979-7-25 9882 Humboldt Near Sims Mtn., close to the town of Willow Creek 1296 Comment
  JEPS11139  Keckiella corymbosa Joseph P. Tracy 1937-7-11 15422 Humboldt vicinity Garberville 121 Comment
  UC1222464  Keckiella corymbosa Joseph P. Tracy 1934-8-26 13602 Humboldt Blue Slide Northern Coast Ranges (on Van Duzen River) 91 Comment
  HSC98709  Keckiella lemmonii Cara Witte 2007-7-27 605 Humboldt Forest Service Road 4N32. 1.5 mile N of intersection with Forest Service Road 4N32B. 1585 Comment
  JEPS12480  Kelloggia galioides Joseph P. Tracy 1930-7-19 9081 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  JEPS11334  Kickxia elatine W. L. Jepson 1936-8-12 17878 Humboldt Phillipsville; South Fork Eel River Comment
  UC38697  Koeleria macrantha Harley P. Chandler June 1901 1342 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 304 Comment
  UC479390  Lactuca biennis Marcus E. Jones, A. M. 1931-7-14 29090 Humboldt s Eureka Comment
  UC1051586  Lactuca serriola Joseph P. Tracy 1943-11-28 17460 Humboldt gravel bars <from> Alton to Fortuna; Eel River 15 Comment
  UC1223225  Lagophylla ramosissima Joseph P. Tracy 1950-8-4 19259 Humboldt ne lookout ((at head of Canoe Creek)); Bull Creek State Park, Grasshopper Peak Comment
  CAS-BOT-BC337868  Lapsana communis Henry M. Pollard 1946-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  CHSC71616  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 Humboldt Collected on Red Mountain. Comment
  HSC14744  Lathyrus littoralis J. W. Johnson 1962-5-6 1326 Humboldt W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC33765  Lathyrus littoralis Paul Dryden 1975-5-24 207 Humboldt Samoa Dunes, across from the boat landing. Comment
  RSA246791  Lathyrus littoralis Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35310 Humboldt Big Lagoon 3 Comment
  HSC62924  Lathyrus littoralis J. M. DiTomaso 1979-4-22 913 Humboldt Big Lagoon, 8 mi. N of Trinidad Comment
  HSC73128  Lathyrus polyphyllus M. A. Baker 1980-5-18 1283 Humboldt Near Black Mtn. 1006 Comment
  BLMAR275  Lathyrus polyphyllus Jennifer Anthony-Wheeler 1999-7-30 275 Humboldt Lacks Creek, growing by fdsides adjacent to forest 1219 Comment
  UC1222408  Lathyrus polyphyllus Joseph P. Tracy 1949-8-11 18474 Humboldt 2-6 mi s Grouse Mt. (ridge e of headwaters of Redwood Creek, where power line crosses); Kinsey Ridge 1280 Comment
  UC162867  Lathyrus polyphyllus Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5355 Humboldt Bell Springs to Harris; North Coast Ranges Comment
  UC1199066  Lathyrus torreyi Joseph P. Tracy 1922-6-5 6084 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  RSA168908  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt On Murphy Ridge beyond the meadows. Comment
  UC162589  Lathyrus vestitus Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5358 Humboldt Bell Springs to Harris; North Coast Ranges Comment
  UC168987  Lathyrus vestitus var. vestitus Joseph P. Tracy 1912-8-3 3971 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC104093  Layia carnosa Kyle Brown Apr 2015 33 Humboldt Ma-le'l Dunes; ~.25 mi. NW of parking lot 3 Comment
  RSA176928  Layia carnosa Peter H. Raven 1963-5-15 18370 Humboldt Lanphere Ranch just west of Mad River Slough; near Arcata Comment
  JEPS66641  Ledum glandulosum Joseph P. Tracy 1924-7-13 6728 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  UC1409177  Ledum glandulosum Robert F. Thorne and P. Everett 1965-8-9 35295 Humboldt Big Lagoon 3 Comment
  RSA94973  Leontodon nudicaulis F. W. Peirson 1926-7-13 7056 Humboldt Near Blue Lake, Mad River. Comment
  HSC68160  Leontodon saxatilis subsp. saxatilis J. P. Smith 1971-10-6 4966 Humboldt End of Murray Rd. in McKinleyville. Comment
  CAS-BOT-BC89079  Lepidium didymum Robert F. Thorne; P. Everett 1965-8-8 35243 Humboldt North edge of Eureka, east of Highway 101. 4 Comment
  UC1225756  Lepidium latipes Joseph P. Tracy 1948-5-31 17991 Humboldt Harris 762 Comment
  UC1199160  Lepidium nitidum Joseph P. Tracy 1913-5-4 4069 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC17077  Leptosiphon androsaceus J. P. Tracy, H. E. Parks 1930-5-25 794 Humboldt Near Bridgeville 457 Comment
  HSC22865  Leptosiphon androsaceus D. E. Anderson 1965-5-8 3636 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  POM264483  Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt Near Blockburg. Comment
  HSC81933  Leucanthemum vulgare Thomas W. Nelson, Jane P. Nelson 1979-7-3 4960 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC102127  Lewisia nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1031 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SEINET200615 Image available Lewisia nevadensis Joseph P. Tracy 1932-7-10 10377 Humboldt Trinity summit open places at Corral Prairie 1585 Comment
  CDA32456  Leymus X vancouverensis Co Hort. Comm 1930-10-1 s.n. Humboldt letter in files -- not found 0 Comment
  CAS-BOT-BC436492  Ligusticum apiifolium Ira L. Wiggins 1930-7-22 4692 Humboldt Along Redwood Creek between Blue Lake and Wilow Creek Comment
  HSC98754  Ligusticum californicum Cara Witte 2007-7-19 551 Humboldt Forest Service Road 4N32. 1.5 miles east of intersection with 4N70. Grouse Mountain Lookout. 1547 Comment
  HSC21521  Lilaeopsis occidentalis J. W. Johnson 1962-6-5 Humboldt Lanphere Farm, Samoa Peninsula, Hollow 10 Comment
  HSC21522  Lilaeopsis occidentalis D. E. Anderson 1962-7-14 2272 Humboldt W edge of Freshwater Lagoon Comment
  HSC95380  Lilaeopsis occidentalis Andrea Pickart 2002-7-9 170 Humboldt Bracut Marsh at freshwater outlet into salt marsh 10 Comment
  UC176172  Lilium columbianum Joseph P. Tracy 1913-9-9 4395 Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  HSC31642  Lilium columbianum Glenn McGourty 1974-6-1 80 Humboldt Comment
  CAS-BOT-BC130634  Lilium kelloggii Doris K. Kildale 1925-6-28 790 Humboldt Kneeland Prairie 609 Comment
  CAS-BOT-BC130637  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  CAS-BOT-BC130639  Lilium kelloggii A. M. Vollmer; L. Beane 1953-7-1 119 Humboldt Freshwater Comment
  CAS-BOT-BC130641  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  RSA256730  Lilium kelloggii A. Montalvo, J. D. Akerman 1974-8-1 399 Humboldt 1 mile west of Kneeland P.O. on Greenwood Heights Road Comment
  CAS-BOT-BC130731  Lilium pardalinum Doris K. Kildale 1925-7-4 994 Humboldt Upper Willow Creek Canyon 640 Comment
  HSC63836  Lilium pardalinum subsp. pardalinum M. A. Baker 1979-6-29 951 Humboldt 900 Comment
  CAS-BOT-BC133014  Lilium washingtonianum subsp. purpurascens 1901-7-24 s.n. Humboldt Near Arcata Comment
  UC594241  Limnanthes douglasii S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3407 Humboldt Burr Valley Buck Mountain 1036 Comment
  RSA246709  Limonium californicum Robert F. Thorne, Percy C. Everett 1965-8-7 35211 Humboldt Samoa Peninsula. 0 Comment
  UC52532  Linanthus bicolor J. P. Tracy 1902-7-4 1763 Humboldt immediate vicinity Eureka 0 Comment
  UC1198540  Linanthus bolanderi Joseph P. Tracy 1914-7-5 4566 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UCR37554  Linaria canadensis var. texana L. P. Janeway 1983-5-19 299 Humboldt Samoa Peninsula c. 1/2 mi north of Eureka-Samoa bridge. Between RR tracks and old Samoa Road near W edge of Arcata Bay 3 Comment
  HSC20667  Linaria vulgaris H. E. Parks, S. T. Parks Aug 1943 22239 Humboldt Along Hwy., Stone Lagoon 15 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
  UC602524  Linnaea borealis var. longiflora Joseph P. Tracy 1937-7-24 15534 Humboldt head of Little Hors-Linto Creek Trinity Summit; , head of Little Hors-Linto Creek 1371 Comment
  HSC46136  Linum bienne J. P. Smith 1971-10-6 4964 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC42008  Linum bienne Tom Duebendorfer 1977-5-15 47 Humboldt 0.52 mi. after junction of Snow Creek Rd. and Maple Creek Rd. along Maple Creek Rd. 518 Comment
  JEPS19995  Lipocarpha aristulata Joseph P. Tracy 1931-9-7 9650 B Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC36103  Lithocarpus densiflorus var. densiflorus L. R. Abrams 1916-7-11 6005 Humboldt Between Blackberry and Bridgeville Comment
  JEPS81106  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson and Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland; e side of junction of Kneeland and Maple Creek roads 670 Comment
  RSA247208  Lithocarpus densiflorus var. densiflorus Gary D. Wallace 1971-7-28 946 Humboldt Along King Range Co. Rd. ca. 4 mi SE of Shelter Cove. Comment
  CAS-BOT-BC36581  Lithocarpus densiflorus var. echinoides Doris Kildale Gillespie 1931-6-7 10604 Humboldt South Fork Mt., Brush lookout 1726 Comment
  UC1225786  Lithocarpus densiflorus var. echinoides Joseph P. Tracy 1948-8-15 18135 Humboldt 2 mi e Grove's Summit; Trinity Summit 1524 Comment
  HSC20227  Lithophragma affine G. N. Bos 1965-5-15 266 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  UC1196490  Lithophragma affine Joseph P. Tracy 1941-3-26 16819 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1103159  Lolium multiflorum Joseph P. Tracy 1909-7-4 3003 Humboldt Eureka; Northern Coast Region, at Eureka 0 Comment
  UC726366  Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt near Arcata; near Arcata Comment
  UCD66673  Lolium temulentum M. A. Jargas 1926-6-8 Humboldt Happy Valley. Comment
  SEINET200742  Lomatium dasycarpum Joeseph P. Tracy 1923-6-27 6380 Humboldt Trinity River Valley, near the South Fork 183 Comment
  HSC23086  Lomatium dasycarpum subsp. dasycarpum D. E. Anderson 1965-5-1 3588 Humboldt Along Hwy. 96, 3-4 mi. S of Weitchpec Comment
  HSC63842  Lomatium macrocarpum M. A. Baker 1979-6-26 910 Humboldt S facing ridge Comment
  JEPS81116  Lomatium macrocarpum D. H. Norris 1970-5-20 12179 Humboldt crest of ridge on Big Hill Rd. e. of Hoopa Comment
  UC1222606  Lomatium nudicaule Joseph P. Tracy 1951-6-26 5056 Humboldt Board Camp Mountain, N side; at extreme head of Redwood Creek 1541 Comment
  RSA167441  Lomatium nudicaule Joseph P. Tracy 1951-6-26 19573 Humboldt Twin Lakes vicinity Comment
  SEINET12118910  Lomatium nudicaule J. P. Tracy 1951-1 19573 Humboldt Twin Lakes vicinity (Snow Camp & Twin Lakes Trip) Comment
  UC314598  Lomatium nudicaule Joseph P. Tracy 1925-7-26 7208 Humboldt at mouth of S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  HSC74488  Lomatium triternatum M. A. Baker 1980-6-26 2400 Humboldt Near Sims Creek 610 Comment
  SD264747  Lomatium utriculatum Tracey Call, Viola Call 1964-6-19 2271 Humboldt Dry, west-facing hillside 1 mile north of Harris P.O. and ca 3I(c) miles south of Harris Jct. 609 Comment
  JEPS12840  Lonicera hispidula var. vacillans Lincoln Constance 1934-5-29 717 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UCSB10475  Lonicera involucrata Phillips, Priscilla 1958-6-10 Humboldt 0.8 mi. south of intersection of Highway 101 and old highway parallel to it, which runs between Trinidad and Colonial Inn, on the old road Comment
  HSC23144  Lonicera involucrata var. ledebourii Thomas W. Nelson 1970-10-17 238 Humboldt Big Lagoon Comment
  HSC98254  Lotus corniculatus Norman H. Moe 1962-5-19 Humboldt Lanphere's Place Comment
  HSC90323  Lotus corniculatus Jean Hanson 1980-6-22 106 Humboldt Indian (Gunther) Island, Humboldt Bay, City of Eureka. W end of Island in mud between dikes. Comment
  HSC98253  Lotus corniculatus J. W. Johnson 1961-8-23 1049 Humboldt Arcata, Lanphere farm, Samoa Peninsula Comment
  UC162838  Lotus denticulatus Joseph P. Tracy 1908-6 2756 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS8440  Lotus denticulatus Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3405 Humboldt 4 mi w bridge crossing the Van Duzen River (along State Highway 36, Dinsmore); Van Duzen River, Dinsmore Comment
  SEINET3696599 Image available Lotus douglasii Joseph P. Tracy 1911-7-6 3358 Humboldt Road between Three Creeks and mouth of Willow Creek 762 Comment
  HSC1850  Lotus humistratus Elrid H. Spinas 1948-5-15 24 Humboldt Horse Mtn. Comment
  HSC97498  Lotus micranthus Cara Witte 2007-5-21 60 Humboldt White Oak Opening. 1257 Comment
  UC1223395  Lotus micranthus Joseph P. Tracy 1938-6-8 15869 Humboldt Samoa San Dunes Comment
  UC1947582  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1919-5-31 5176 Humboldt near, at Lack Pond Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  UC303190  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6271 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC31388  Lotus scoparius Lincoln Constance 1934-6-1 768 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  SEINET181202 Image available Lotus scoparius var. scoparius Bassett Maguire, Ruth Maguire 1934-6-8 15126 Humboldt Vicinity Squaw Creek Comment
  CAS-BOT-BC342560  Luina hypoleuca Joseph P. Tracy 1917-9-2 4839 Humboldt Northern Coast Ranges. Grouse Mountain 1524 Comment
  HSC49991  Luina hypoleuca M. A. Baker 1979-6-7 799 Humboldt Willow Creek Canyon Comment
  RSA167394  Lupinus albicaulis Joseph P. Tracy 1950-6-18 18849 Humboldt Wilder Ridge Comment
  HSC32521  Lupinus andersonii Thomas W. Nelson, James Nelson 1973-5-28 955 Humboldt McKeown Ranch N of Dinsmore Comment
  CHSC10106  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata. In the dune fields, Christenson Farm, Samoa Peninsula. Comment
  SEINET3132550  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata, Samoa Peninsula. Christenson Farm Comment
  UCD106638  Lupinus arboreus Logan Farm Adviser 1921-6-21 s.n. Humboldt Eureka. Comment
  RSA296737  Lupinus arboreus var. arboreus J. P. Smith, T. W. Nelson 1977-6-30 9218 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA407032  Lupinus arboreus var. arboreus E. A. Purer 1932-7-27 4150 Humboldt Samoa. Comment
  HSC98930  Lupinus bicolor Cara Witte 2007-6-7 224 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  UC156984  Lupinus bicolor Joseph P. Tracy 1908-6 2693 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC14788  Lupinus bicolor C. E. Fellows 1965-5-19 87 Humboldt 1.6 mi. S of 7th St. on Hwy. 101 at bridge, E side of Hwy., S side of bridge Comment
  SEINET10484916  Lupinus bicolor subsp. pipersmithii Charles Piper Smith 1948-5-10 Smith 48251 Humboldt Highway 101 - garberville, 2 miles north. Comment
  CAS-BOT-BC205382  Lupinus elmeri Charles Piper Smith 1947-7-14 47668 Humboldt Blake Lookout Road, South Fork Mountain, 0.3 miles north of Hyampom trail sign Comment
  SEINET10841279  Lupinus elmeri Charles Piper Smith 1947-7-14 Smith 47668 Humboldt Blake lookout rd., S fork mountain, 0.3 mi. N of hyampom trail sign. Comment
  HSC99444  Lupinus latifolius var. latifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 94 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC169350  Lupinus luteolus Joseph P. Tracy 1912-7-26 3871 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC865132  Lupinus microcarpus var. densiflorus C. L. Hitchcock, J. S. Martin 1939-7-13 5423 Humboldt on Arcata-Reading Hiway 65 mi e Arcata; e of Arcata 457 Comment
  BLMAR343  Lupinus nanus Jennifer Anthony-Wheeler 2003-5-15 343 Humboldt Eden valley, Irrigated meadow on private land 694 Comment
  RSA0084061  Lupinus obtusilobus Jane P. Nelson 1974-5-27 1318 Humboldt Mendocine National Forest near Mendocino Pass. 1524 Comment
  SEINET10486156  Lupinus polycarpus Charles R. Gunn 1963-6-3 Gunn 2702 Humboldt 1/2 mi s of korbel on gravel road. In ditch along south mad river. Comment
  UC150122  Lupinus rivularis J. P. Tracy 1910-5-8 3134 Humboldt immediate vicinity Eureka 0 Comment
  HSC59681  Lupinus rivularis George Kirn 1977-10-12 Humboldt South shore Little River, 1/2 mile from mouth 8 Comment
  HSC57931  Lupinus tracyi G. L. Clifton, Griswold 1979-7-31 11567 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  RSA87079  Lupinus vallicola subsp. apricus F. W. Peirson 1923-7-10 4221 Humboldt Garberville Comment
  HSC38371  Lupinus variicolor Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  UC2978  Luzula comosa Harley P. Chandler June, 1901 1312 A Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 304 Comment
  HSC83998  Luzula comosa L. P. Janeway 1983-4-16 227 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  CAS-BOT-BC436736  Luzula comosa var. laxa R. K. Gierisch; D. H. Esplin 1969-7-1 3539 Humboldt Six Rivers area: Grouse Mt. 1584 Comment
  CDA39249  Luzula parviflora J. Riddell 2002-4-21 47 Humboldt Prairie Creek State Park, Gold Beach roadside. Comment
  UC1152089  Luzula parviflora Joseph P. Tracy 1951-6-26 19545 Humboldt woods at Snow Camp; woods at Snow Camp Comment
  UC524369  Lycopodiella inundata Ira L. Wiggins 1932-7-19 5893 Humboldt low swamp at s end Big Lagoon Comment
  HSC95500  Lycopodium clavatum Gordon Leppig 2004-2-3 2129 Humboldt Pacific Lumber Co. land, NE edge of THP 1-04-001 HUM. 300 Comment
  CAS-BOT-BC215681  Lycopus uniflorus Carl B. Wolf 1927-8-22 786 Humboldt Big Lagoon Comment
  JEPS63270  Lycopus uniflorus Joseph P. Tracy 1925-10-18 7284 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  HSC62983  Lysichiton americanus David Wheeler 1979-4-20 Humboldt Clam Beach Ponds, N pond, 0.25 mi. S of Crannel Rd. between the frontage road and Hwy. 101 Comment
  HSC99631  Lysichiton americanus Gordon Leppig 1998-3-25 728 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC179917  Lysichiton americanus Joseph P. Tracy 1914-9-13 4627 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC103699  Lysichiton americanus M. R. Mesler 2014-9-3 1638 Humboldt Arcata, Jolly Giant Creek Rd 49 Comment
  RSA137264  Lysichiton americanus I. L. Wiggins 1957-6-19 14130 Humboldt East side of highway, Trinidad. Comment
  RSA0015875  Lythrum hyssopifolia H. M. Pollard 1945-8-28 s.n. Humboldt Near Harley place. Comment
  SEINET10473462  Madia Mary Susan Taylor 1990-8-22 Taylor 6074 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC176862  Madia elegans Joseph P. Tracy 1911-7-6 3355 Humboldt between Three Creeks and mouth of Willow Creek 762 Comment
  UC195538  Madia elegans Joseph P. Tracy 1908-6 2683 Humboldt near bridge across Little Van Duzen (nw slope of Buck Mountain); Northern Coast Ranges, Buck Mountain 762 Comment
  RSA275381  Madia elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1976-7-1 2894 Humboldt Growing on serpentine ridge north of Bear Creek 1463 Comment
  HSC70393  Madia exigua M. A. Baker 1980-6-7 1849 Humboldt Near Ammon Creek 732 Comment
  JEPS40406  Madia gracilis W. L. Jepson 1903-6-29 2235 Humboldt Low Gap Comment
  POM362191  Madia madioides M. O'Mera 1974-7-1 541 Humboldt Kneeland, Barry Ridge, just off ridge Comment
  UC1199397  Madia sativa J. P. Tracy 1903-8-9 1940 Humboldt immediate vicinity of Eureka 0 Comment
  UC1052187  Madia sativa J. L. Meyer 1954-10-11 29 Humboldt 3 mi n Blocksburg; Quadrangle 29A3 457 Comment
  UC495630  Madia sativa Joseph P. Tracy 1927-6-18 8176 Humboldt three mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC47498  Maianthemum dilatatum Sheila Logan 1978-4-10 23 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  SBBG8899  Maianthemum dilatatum H. and M. Dearing 1939-5-26 3447 Humboldt Bishop Pine Lodge, N of Trinidad Comment
  UC1134630  Maianthemum dilatatum H. S. Yates 1936-6-23 5864 Humboldt 1 mi. s. Loleta; Rohnerville Quad. Comment
  HSC15599  Maianthemum dilatatum D. B. Bader 1963-5-1 43 Humboldt Second of the Clam Beach lagoons N end, W of Hwy. 101 Comment
  RSA24195  Maianthemum dilatatum Carl B. Wolf 1941-3-1 9978 Humboldt 4 miles northeast of Strongs Station (Van Duzen River) on Rd. to Yager 152 Comment
  SD46488  Maianthemum dilatatum E. K. Balls, L. W. Lenz 1956-6-12 21668 Humboldt 4.7 miles south of Humboldt-Del Norte County line, U.S. Highway 101, Arcata to Crescent City. O forest floor in deep humus. 60 Comment
  SEINET12043868  Maianthemum dilatatum H. C. Cantelow 1936-1 s.n. Humboldt 5 mi N of Orick Comment
  HSC42005  Maianthemum racemosum subsp. amplexicaule Tom Duebendorfer 1977-5-15 52 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC44336  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1975-6-17 675 Humboldt Horse Mtn. Comment
  RSA554593  Maianthemum racemosum subsp. amplexicaule Walter Wisura 1993-5-9 4911 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  HSC56979  Maianthemum stellatum Overton, Butler 1979-7-23 9516 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC70326  Maianthemum stellatum M. A. Baker 1980-6-8 1881 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC512773  Maianthemum stellatum D. Baxter; S. Boren; C. Williams 1994-5-6 47 Humboldt West side of Titlow Road 0.35 miles south of Highway 299 853 Comment
  UCD134381  Malacothrix D. C. Hagar 1956-8-17 89 Humboldt Three Creek's Burn, ca. 6 miles west of Willow Creek. 609 Comment
  CAS-BOT-BC140134  Malus fusca C. B. Wolf 1930-10-26 1766 Humboldt So. edge of Big Lagoon near the Redwood Highway Bridge 3 Comment
  CAS-BOT-BC140137  Malus fusca W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  CAS-BOT-BC140139  Malus fusca Rattan 1878-6-6 s.n. Humboldt Arcata Comment
  JEPS45607  Malus fusca Milo S. Baker 1923-8-5 196 Humboldt near Orick; North Coast Comment
  UC1198760  Malus fusca J. P. Tracy 1899-5-14 102 Humboldt Eureka 0 Comment
  HSC47495  Marah oregana Sheila Logan 1978-4-9 19 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC59708  Marah oregana Clark L. Miller 1979-5-13 2121 Humboldt N of Trinidad along Patricks Point Dr. Comment
  HSC7036  Marah oregana Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC26658  Marah oregana Thomas W. Nelson 1973-5-22 920 Humboldt Growing on C.S.U.H. campus Comment
  HSC60078  Marah oregana M. A. Baker 1977-6-6 371 Humboldt Hoopa Comment
  UC168954  Marah oregana Joseph P. Tracy 1909-5-30 2980 Humboldt Eureka Northern Coast Region 0 Comment
  UC673066  Medicago arabica Joseph P. Tracy 1933-5-20 12220 Humboldt Capetown Bear River (valley along river) 30 Comment
  HSC14973  Medicago polymorpha W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus behind biological science building, near baseball field. Comment
  HSC14974  Medicago polymorpha Jack Rockwell 1962-5-12 74 Humboldt N of Bridgeville in hillside canyon 213 Comment
  CAS-BOT-BC271172  Melica aristata Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  UC1103762  Melica bulbosa Joseph P. Tracy 1927-5-22 8073 Humboldt Kneeland Prairie; Northern Coast Range 762 Comment
  UC1132260  Melica geyeri H. S. Yates 1936-6-17 5717 Humboldt South Fork Pk , Burr Valley (Burr Valley) 1036 Comment
  CAS-BOT-BC281004  Melica spectabilis Joseph P. Tracy 1932-7-12 10445 Humboldt Klamath Mts,Trinity Summit. At Corral Prairie 1524 Comment
  UC34139  Melica spectabilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5827 Humboldt Trinity Summit Comment
  HSC103081  Melica stricta Sydney Carothers 2014-7-3 17 Humboldt Six Rivers National Forest, Lassics Botanical Area, Mt. Lassic, upper north slope 1775 Comment
  HSC10370  Melica subulata E. W. Styskel 1964-4-3 59 Humboldt 0.25 mi. NE of Garbervillie Airport along Sprowl Creek Rd. Comment
  HSC32240  Melica subulata J. O. Sawyer 1970-6-24 2280 Humboldt W of Mill Creek Lakes. 1677 Comment
  UC526919  Melica subulata Joseph P. Tracy 1933-5-28 12416 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UCD89113  Melica torreyana A. H. Murphy 1951-4-18 20 Humboldt Fort Seward. Comment
  UC1197422  Melilotus indicus Joseph P. Tracy 1933-5-20 12232 Humboldt Cape Mendocino; near ocean 9 Comment
  HSC12369  Mentha canadensis C. E. Fellows 1970-10-27 376 Humboldt Banks of Mad River 1/8 mi. W of Lindsey Creek Comment
  UCD125052  Mentha canadensis Malcolm A. Nobs; S. Galen Smith 1949-8-9 1241 Humboldt on south side of the town of Blue Lake. Comment
  CHSC26754  Mentha pulegium M. S. Taylor 1977-8-5 1429 Humboldt Around ridge over Eel River, at turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  SEINET10498893  Mentha pulegium Mary Susan Taylor 1977-8-5 Taylor 1429 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  HSC91898  Menziesia ferruginea E. Mackey 1986-5-13 Humboldt Patrick's Point State Park, Octopus Grove Comment
  JEPS86110  Menziesia ferruginea Wayne Roderick 1965-6-5 Humboldt 0.5 mi s of Del Norte-Humboldt County line 152 Comment
  HSC28256  Menziesia ferruginea subsp. ferruginea Gary S. Lester 1973-12-2 59 Humboldt Humboldt State University Campus, Arcata Comment
  CAS-BOT-BC322683  Microseris laciniata K. L. Chambers 1969-5-25 2921 Humboldt On road to Harris about 1 mile east of the freeway overpass at Garberville Comment
  JEPS13226  Microseris laciniata subsp. laciniata Joseph P. Tracy 1936-6-17 14942 Humboldt Bridgeville 198 Comment
  CAS-BOT-BC349238  Microseris nutans L. R. Abrams 1918-6-15 7124 Humboldt Brannan Mt near Willow Creek 1371 Comment
  SEINET7016944  Microseris paludosa Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  POM228349  Mimulus aurantiacus var. aurantiacus C. C. Harris, S. K. Harris 1936-6-9 s.n. Humboldt Carlotta. 61 Comment
  HSC56177  Mimulus breweri G. L. Clifton, Griswold 1979-8-1 12085 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC23725  Mimulus cardinalis Tim Baroni 1971-8-1 151 Humboldt 8 mi. E of Petrolia on the Mattole River Comment
  UC169014  Mimulus floribundus Harley P. Chandler June, 1901 1481 Humboldt between Orleans and Somes Bar; North Coast Ranges, Klamath River 304 Comment
  BLMAR73  Mimulus guttatus Jennifer Anthony-Wheeler 1994-5-25 73 Humboldt King range, growing along lighthse rd 1/4 mi from Mattole beach 6 Comment
  HSC73600  Mimulus guttatus M. A. Baker 1980-7-22 3113 Humboldt Near Grogan Hole. 1676 Comment
  HSC22508  Mimulus guttatus W. B. Thompson 1967-7-20 17 Humboldt Along creek W of the access road to Clam Beach Co. Park Comment
  HSC45271  Mimulus guttatus M. Alcasas 1978-6-3 116 Humboldt On Titlow Hill Rd., 1.3 mi. from Hwy. 299 1463 Comment
  UC1196831  Mimulus guttatus Joseph P. Tracy 1937-5-31 15324 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS10795  Mimulus inodorus Joseph P. Tracy 1932-7-16 10610 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC582480  Mimulus inodorus Joseph P. Tracy 1923-9-16 6551 Humboldt near South Fork; Trinity River Valley 182 Comment
  CDA41715  Mimulus kelloggii K. Esau 1935-4-23 s.n. Humboldt Ft. Seward. 0 Comment
  UC1196803  Mimulus layneae Joseph P. Tracy 1937-7-5 15373 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA44299  Mimulus moschatus H. M. Pollard 1945-8-21 s.n. Humboldt Road to old mine North of Orleans, Klamath River canyon. Comment
  JEPS14946  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15597 Humboldt w slope near top South Fork Mountain (at Hyampom Trail) 1676 Comment
  HSC100674  Mimulus nasutus Carl C. Marshall 434 Humboldt Mtns. of Humboldt, open ridges near water. Comment
  UC1103333  Mimulus pulsiferae Joseph P. Tracy 1933-7-25 12834 Humboldt Grouse Mountain North Coast Ranges 1524 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
  UC1103542  Minuartia californica Joseph P. Tracy 1925-5-30 7033 Humboldt Larribee Valley Northern Coast Ranges 701 Comment
  HSC71675  Minuartia douglasii M. A. Baker 1980-6-26 2392 Humboldt Near Sims Creek 610 Comment
  HSC73077  Minuartia douglasii M. A. Baker 1980-5-18 1334 Humboldt Near Black Mtn. 792 Comment
  HSC32136  Minuartia nuttallii subsp. gregaria D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5605 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC1198870 Image available Mitella diversifolia Joseph P. Tracy 1935-7-22 14123 Humboldt near Forks of Tish-Tang-A-Tang Creek; Trinity Summit 1371 Comment
  JEPS43803  Mitella ovalis Lincoln Constance 1934-6-15 892 Humboldt Grasshopper Peak South Fork Eel River, Bull Creek Region (summit) 975 Comment
  HSC75445  Mitella trifida J. O. Sawyer 1980-7-18 3602 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SD56850  Mitellastra caulescens Darley F. Howe 1963-8-7 3806 Humboldt 23 mi west of west end to 6 Rivers north fork on #299 213 Comment
  HSC38487  Moehringia macrophylla D. E. Anderson, J. P. Smith 1971-7-6 - 1272 Humboldt Horse Mtn. Comment
  HSC38514  Moehringia macrophylla D. E. Anderson, J. P. Smith 1971-6-18 - 1086 Humboldt Horse Mtn. Comment
  HSC73710  Moehringia macrophylla M. A. Baker 1980-7-15 2979 Humboldt Near Whiting Ridge 301 Comment
  HSC74566  Moehringia macrophylla M. A. Baker 1980-5-17 1278 Humboldt Near Le Perron Peak 1066 Comment
  UC668120  Moehringia macrophylla Joseph P. Tracy 1935-7-25 14225 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  HSC57989  Monardella odoratissima G. L. Clifton, Griswold 1979-7-31 11732 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC76519  Monardella odoratissima D. K. Imper 1981-8-12 903 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  UC1239677  Monardella odoratissima subsp. glauca Joseph P. Tracy 1935-7-14 14093 Humboldt Horse Mountain 1310 Comment
  HSC58101  Monardella odoratissima subsp. pallida G. L. Clifton, Griswold 1979-8-1 12032 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC72614  Monardella sheltonii J. P. Smith 1977-7-3 9262 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  RSA0022806  Monardella villosa Carl B. Wolf 1937-8-13 9223 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC63752  Monardella villosa subsp. villosa H. M. Hall Oct. 1899 Humboldt Comment
  HSC44611  Monotropa hypopitys R. York 1978-6-5 189 Humboldt 12 mi. up Waterman Ridge Rd. off of Hwy. 299. Bulk Collection 121 610 Comment
  RSA52284  Monotropa uniflora D. Meadows 1950-7-21 a.n. Humboldt Near Bear Trap on Irvine Trail, Prairie Creek State Park. Comment
  JEPS109237  Montia howellii Stephanie Puentes 2008-4-23 Humboldt Vicinity Larabee Valley, along Horse Creek about 1 mile upstream from Hwy 36. Comment
  UC162353  Montia howellii Joseph P. Tracy 1909-3-21 2947 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC162354  Montia howellii Joseph P. Tracy 1909-5-2 2956 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC32090  Montia linearis D. E. Anderson, T. Nelson, S. Dowty 1972-6-17 5708 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC55061  Montia parvifolia G. L. Clifton, Terry Griswold 1979-7-31 11613 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC445160  Montia parvifolia Henry M. Pollard 1947-8-9 s.n. Humboldt South river road, south of Orleans Comment
  UCD138687  Muscari armeniacum Joseph M. DiTomaso 1976-3-28 344 Humboldt Samoa Cookhouse 3 miles northwest of Eureka. Comment
  HSC48727  Myriophyllum sibiricum W. B. Strickland 1968-3-28 Humboldt McClellan Mtn. Rd., off Hwy. 36 above Bridgeville 457 Comment
  UC1173635  Narthecium californicum Joseph P. Tracy 1930-7-17 9003 Humboldt meadow at McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  JEPS79938  Navarretia intertexta subsp. intertexta Joseph P. Tracy 1938-7-5 16012 Humboldt open flat by old Strong's District School House (5 mi e of town); Carlotta 45 Comment
  JEPS69509  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC52743  Navarretia linearifolia subsp. pinnatisecta Chestnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  HSC42587  Navarretia pubescens Maralyn O'Meara 1974-7-11 532 Humboldt Kneeland, Barry Ridge Comment
  JEPS70445  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point Northern Caost Ranges 152 Comment
  HSC17144  Navarretia pubescens William J. Ferlatte, B. D. Rogers 1966-6-15 2098 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  UC1198530  Navarretia squarrosa Joseph P. Tracy 1941-9-1 16998 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  JEPS70471  Navarretia squarrosa Joseph P. Tracy 1921-7-23 5857 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  SEINET12279170  Navarretia tagetina J. P. Tracy 1950-1 18862 Humboldt Dobbyn Creek, 3 mi NE of Alderpoint 213 Comment
  HSC100497  Nemophila menziesii Carl C. Marshall Jul 1887 86 Humboldt In the hills everywhere. Comment
  UC562583  Nemophila menziesii var. atomaria Joseph P. Tracy 1926-5-9 7464 Humboldt Valley of South Yager Creek 762 Comment
  UC562584  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-1 9858 Humboldt Redway 182 Comment
  HSC89473  Nemophila menziesii var. menziesii P. A. Daly 1986-3-12 94 Humboldt Trinidad Head, along trail 61 Comment
  RSA21087  Nemophila menziesii var. menziesii Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 miles west of Little Van Duzen River at summit of grade - Dinsmores to Bridgeville. 762 Comment
  HSC77938  Noccaea fendleri subsp. californica Jimerson, D. K. Imper 1982-5-17 1434 Humboldt Near Ashfield Ridge. 822 Comment
  HSC34230  Notholithocarpus densiflorus var. densiflorus Linda M. Barker 1974-5-11 176 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  UCR45372  Notholithocarpus densiflorus var. densiflorus Barry Silver 1986-4-13 505 Humboldt Bair Road, 6.4 mi. WSW of Hoopa Comment
  UC275320  Nuphar lutea subsp. polysepala Joseph P. Tracy 1923-6-27 6385 Humboldt Trinity River Valley near the South Fork, Lack Pond Lack Pond; Northern Coast Ranges, Trinity River Valley, Lack Pond 182 Comment
  CAS-BOT-BC142298  Oemleria cerasiformis Doris K. Kildale 1927-3-26 2996 Humboldt Warren Creek, Lower Mad River Comment
  UC1222314  Oemleria cerasiformis Joseph P. Tracy 1951-6-21 19514 Humboldt opposite Willow Creek; Trinity Valley Comment
  UC183584  Oemleria cerasiformis Joseph P. Tracy 1912-3-31 3564 Humboldt Blue Lake; Northern Coast Ranges 30 Comment
  HSC23225  Oenanthe sarmentosa Thomas O. Erickson 1971-10-28 1 Humboldt Luffenholtz Beach off Hwy. 101 N of Moonstone Comment
  JEPS35818  Oenanthe sarmentosa Rimo Bacigalupi and L. R. Heckard 1964-7-28 8964 Humboldt 1/8 mi. above Shelter Cove (near water tanks for supplying Shelter Cove) Comment
  CHSC70160  Oenothera wolfii David K. Imper 1991-9-4 Humboldt Grown in Eureka garden. Parents collected at junc. Hwy 299 and Big Hill Rd, Hoopa Square 91 Comment
  UC637063  Orobanche californica subsp. californica Edward Lee 1934-8-17 1152 Humboldt East shore of Big Lagoon, 35 miles north of Eureka. Comment
  CAS-BOT-BC499671  Orobanche californica subsp. californica Ira L. Wiggins 1932-7-19 5894 Humboldt Near the beach at south end of Big Lagoon Comment
  UC585980  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1935-7-28 14321 Humboldt Head of Devil's Hole. Trinity Summit. Comment
  HSC100092  Orthilia secunda Jimerson, J. Pageau 1979-6-12 538 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  CAS-BOT-BC458030  Orthilia secunda Joseph P. Tracy 1932-7-20 10737 Humboldt Trinity Summit, near Corral Prairie 1584 Comment
  HSC55634  Osmorhiza berteroi Overton, Butler 1979-7-24 9649 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC21582  Osmorhiza berteroi John A. DuBois 1962-5-23 29 Humboldt 19 mi. E of Arcata Comment
  HSC75448  Osmorhiza occidentalis J. O. Sawyer 1980-7-18 3582 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC71714  Osmorhiza purpurea M. A. Baker 1980-6-26 2435 Humboldt Near Sims Creek 610 Comment
  HSC73956  Osmorhiza purpurea Gail Newton 1980-6-7 133 Humboldt Near Brush Mtn. 1128 Comment
  CHSC70834  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. Along the road leading into the recreation area. 6 Comment
  HSC16703  Oxalis oregana D. E. Anderson 1961-8-11 1726 Humboldt E of Humboldt State University campus 30 Comment
  HSC16704  Oxalis oregana Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  RSA32865  Oxalis oregana A. A. Heller 1923-7-8 13770 Humboldt Near Pepperwood Comment
  SD90204  Oxalis oregana Benjamin C. Stone 1952-6-22 115 Humboldt Big Lagoon on Highway 101; 10 miles south of Orick. 22 Comment
  UC1130248  Oxalis oregana H. L. Person 1932-8-1 Humboldt Korbel Eureka quad Comment
  CDA38475  Oxypolis occidentalis Laurel Goldsmith & Wanda Naylor 2005-6-15 7 Humboldt Coldspring Camp, 7.4 mi. south of Hwy. 299 on NF1. Comment
  HSC96581  Packera bolanderi var. bolanderi Gordon Leppig, Maralyn A. Renner 2005-6-7 2246 Humboldt Pacific Lumber Company land. Redwood House Rd., Hely Creek watershed 363 Comment
  HSC93730  Parapholis incurva Gordon Leppig, Sylvia Leppig 1998-5-25 788 Humboldt Big Lagoon State Park. 1 Comment
  SEINET182648 Image available Parapholis incurva S. K. Harris, J. P. Tracy 1936-6-6 3218 Humboldt Eureka, California Comment
  CDA38658  Parentucellia viscosa B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -B Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 Comment
  CHSC20872  Parentucellia viscosa Robert A. Schlising 1963-6-3 2582 Humboldt 2 miles north 0f Fortuna. Comment
  JEPS84972  Parentucellia viscosa Barbara Ertter with Thomas J. Delendick 1987-5-16 6915 Humboldt 8 mi e of Arcata (9 1/2 mi w of Lord Ellis Summit, Hwy 299 roadside); Hwy 299 Comment
  UCD123252  Parentucellia viscosa Linda M. Barker 1976-7-5 1640 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC90262  Parentucellia viscosa Jean Hanson 1980-5-24 75 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka, W end of island, S of dike Comment
  HSC98075  Paxistima myrsinites Cara Witte 2007-7-12 525 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  HSC20931  Pedicularis densiflora N. J. Cole 1965-3-19 3 Humboldt 5 mi. S of Weitchpec along Hwy. 96 Comment
  RSA183616  Pedicularis densiflora D. E. Anderson 1965-5-1 3556 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek. Comment
  UC582558  Pedicularis densiflora Joseph P. Tracy 1927-5-15 8060 Humboldt near summit on road w from Hoopa to Bair's; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC582555  Pedicularis groenlandica Joseph P. Tracy 1932-7-16 10639 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  HSC70692  Pellaea brachyptera Gail Newton 1980-7-15 1565 Humboldt Near Sims Mtn. 1311 Comment
  SEINET200794 Image available Pellaea mucronata subsp. mucronata J. P. Tracy 1933-6-13 12561 Humboldt Near summit on rd W from Hoopa to Bair's Hoopa Mt 1067 Comment
  HSC55332  Penstemon anguineus Terry Griswold, Marvin Butler 1979-7-12 7176 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  HSC56186  Penstemon anguineus Gilbert Muth 1979-8-1 12118 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1245389  Penstemon anguineus Joseph T. Gregory 1933-7-16 449 Humboldt nr MacKay Camp (edge of swamp); nr MacKay Camp 1737 Comment
  RSA167237  Penstemon heterophyllus subsp. purdyi Joseph P. Tracy 1950-6-15 18782 Humboldt At the Jenk's Ranch, where not over sheeped, 7 miles N of Harris. Comment
  JEPS85630  Penstemon newberryi var. berryi W. L. Jepson July 16 - 23, 1902 2107 Humboldt Trinity Summit 2133 Comment
  UC1198051  Penstemon newberryi var. berryi Joseph P. Tracy 1941-8-28 17046 Humboldt South Fork Mountain, along summit near Blake lookout Northern Coast Ranges 1706 Comment
  HSC56044  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-7-31 11619 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  RSA420447  Penstemon rattanii Hutchinson 1927-05 s.n. Humboldt [No location information provided.] Comment
  UC169849  Penstemon rattanii var. kleei V. Rattan 1870-1 Humboldt Comment
Read comments
Sep 7 2007
  HSC28928  Pentagramma triangularis Diane Johnson 1972-12-4 Humboldt Butler Valley near Big Bend Rd. Comment
  SEINET12119285  Perideridia howellii J. P. Tracy 1950-1 19331 Humboldt along Larrabee Creek, 0.5 mi along Blocksburg Road W from bridge across Larrabee Creek Comment
  HSC76403  Perideridia kelloggii M. A. Ericksen 1981-8-21 1085 Humboldt Near Dan East Cabin 1609 Comment
  HSC98753  Perideridia oregana Cara Witte 2007-7-27 601 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1560 Comment
  HSC56012  Perideridia parishii subsp. latifolia Gilbert Muth 1979-7-31 11495 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC6051  Petasites frigidus var. palmatus D. E. Anderson 1962-3-18 1942 Humboldt Jacoby Creek Comment
  HSC37230  Phacelia bolanderi Lon Hall 1975-6-19 386 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  UCD120311  Phacelia californica James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6871 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC96240  Phacelia heterophylla subsp. virgata Kaylea Eickhoff, Cara M. Witte 2005-6-8 6 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  CDA40414  Phacelia heterophylla subsp. virgata T. C. Fuller 1958-6-17 s.n. Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  UC562557  Phacelia mutabilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8937 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  BLMAR159  Phacelia nemoralis subsp. nemoralis Donald Hazlett 1994-6-7 159 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1051817  Phacelia nemoralis subsp. oregonensis L. R. Heckard 1952-5-13 272 Humboldt near railroad station; Alton Comment
  UC1132414  Phalaris aquatica H. S. Yates 1936-6-23 5857 Humboldt 2 mi se mouth of Mad River; Eureka Quad. Comment
  HSC40205  Phalaris aquatica Thomas W. Nelson, James Nelson 1976-6-22 2843 Humboldt Along Hwy. 36, ~ 4 mi. E of Bridgeville Comment
  CDA304  Phalaris arundinacea J. W. Logan 1926-6-2 2 Humboldt Russell Ranch, Eureka. 0 Comment
  UCSC000088  Phalaris californica H. L. Person 1932-5-11 s.n. Humboldt near Arcata - Eureka 15 Comment
  JEPS49602  Philadelphus lewisii Harley P. Chandler June, 1901 1523 Humboldt Sommes Bar North Coast Ranges, Klamath River 426 Comment
  UC1222381  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt 2 mi w Briceland; Redwood Creek Comment
  UC154110  Philadelphus lewisii Joseph P. Tracy 1908-6 2886 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  RSA0046937  Philadelphus lewisii Doris K. Kildale 1927-7-2 3661 Humboldt Redwood Creek at Berry s. Comment
  UC52674  Phlox adsurgens P. E. Goddard 1901-7-8 31 Humboldt Hupa Comment
  UC1198558  Phlox gracilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8938 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1198561  Phlox gracilis Joseph P. Tracy 1908-6-9 2666 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1222725  Phlox gracilis Joseph P. Tracy 1950-5-7 18648 Humboldt head of Valley of South Yager Creek Valley of South Yager Creek 762 Comment
  UC604655  Phlox gracilis Joseph P. Tracy 1938-4-5 15702 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC60287  Phoradendron serotinum subsp. tomentosum Phyllis Krieg 1979-5-14 Humboldt Korbel Post Office 30 Comment
  SEINET6630811  Phoradendron villosum J. R. Bruff 1937-3-19 802 Humboldt Oak Flat Camp- Ridge Route Comment
  HSC41478  Phyla nodiflora Ed Cope, R. Runyon 1977-7-20 132 Humboldt 15th and H St., Arcata. Comment
  CAS-BOT-BC140582  Physocarpus capitatus Carl B. Wolf 1927-8-30 1227 Humboldt 2 mi. s. of Petrolia on the [Matole] Mattole River near point where road crosses river Comment
  HSC70638  Physocarpus capitatus R. York 1980-5-18 595 Humboldt Near Black Mountain 792 Comment
  CAS-BOT-BC73447  Picea sitchensis Doris K. Kildale 1926-3-20 1544 Humboldt Big Lagoon Comment
  HSC40943  Picea sitchensis Linda M. Barker 1976-4-13 1376 Humboldt 3 mi. W of Arcata Comment
  LA206239  Picea sitchensis Carl Epling; William Robison 1935-7-22 sn Humboldt near Patrick's Point Comment
  POM21764  Picea sitchensis L. R. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad. Comment
  UCR48598  Picris echioides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 12 Humboldt Loleta, along Cannibal Road 8 Comment
  SEINET11809969  Picris echioides J. P. Tracy 1948-1 18098 Humboldt 2 mi W of Bridgeville Comment
  CAS-BOT-BC78380  Pinus contorta W. R. D. 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  UC665726  Pinus contorta subsp. contorta H. E. and S. T. Parks 1938-3-1 24125 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  UCD134418  Pinus contorta var. contorta Linda M. Barker 1976-7-5 1641 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  CAS-BOT-BC73199  Pinus jeffreyi Doris K. Kildale 1926-9-5 2648 Humboldt Lassen's Peaks. Signal Peak. 1791 Comment
  CAS-BOT-BC73200  Pinus jeffreyi Doris K. Kildale 1927-7-22 3832 Humboldt Lassen's Peaks. Signal Peak. 1791 Comment
  HSC31984  Pinus jeffreyi Steve Selva, Roger Jensen 1974-8-19 25 Humboldt Horse Mtn. Ski Area Comment
  HSC37669  Pinus jeffreyi R. Sutherland 1967-8-27 27 .876 Humboldt Elk Ridge, Bulk Collection # 107 716 Comment
Read comments
Apr 30 2013
  UCR139067  Pinus jeffreyi Gordon Leppig 1998-6-1 878 Humboldt Horse Mountain. Titlow Hill Road at Road to Horse Mountain Mine 1422 Comment
  HSC72802  Pinus monticola Gail Newton 1980-6-16 160 Humboldt Near Monks Camp. 1097 Comment
  HSC98787  Pinus monticola Cara Witte 2008-6-4 679 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  UC1600428  Pinus ponderosa Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  UC63995  Pinus sabiniana Mrs. M. H. Manning Apr 1 1902-May 1 1902 Humboldt Hupa Comment
  HSC104332  Piperia transversa James Regan, Humboldt Redwood Co., LLC 2008-7-18 28 Humboldt Happy Valley, Bear River 579 Comment
  SEINET10296823  Piperia unalascensis Unknown 1932-7-12 10453 Humboldt Trinity Summit Fir woods near Corral Prairie Altitude 5200 feet Comment
  UC206143  Plagiobothrys reticulatus J. P. Tracy 1909-6-13 2989 1/2 Humboldt Blue Lake 30 Comment
  UC206144  Plagiobothrys reticulatus Joseph P. Tracy 1909-5-23 2972 Humboldt Eureka 0 Comment
  JEPS79948  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17115 Humboldt Englewood Prairie 91 Comment
  POM126351  Plagiobothrys reticulatus Joseph P. Tracy 1912-6-9 3680 Humboldt Alton. 30 Comment
  UC1222210  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17115 Humboldt Englewood Prairie 91 Comment
  UC1222220  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17161 Humboldt 1 mi ne town [sic] Comment
  UCD120867  Plagiobothrys reticulatus Joseph P. Tracy 1946-5-30 17541 Humboldt Riverside Park and Carlotta, by old Strong's District School House, 5 miles east of town. 60 Comment
  JEPS60990  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1912-6-9 3680 Humboldt Alton Northern Coast Region 30 Comment
  SEINET12275868  Plagiobothrys scouleri J. P. Tracy 1949-1 18322 Humboldt Cameron Hill on Kneeland Road Comment
  UC78093  Plagiobothrys tenellus W. W. Price 1890-6-30 Humboldt Jarnigan's Comment
  UC906674  Plantago coronopus Stuart K. Harris 1942-5-28 6982 Humboldt 1 mi w Fortuna (near Palmer Creek) 15 Comment
  RSA246719  Plantago hirtella var. galeottiana Robert F. Thorne, Percy C. Everett 1965-8-7 35173 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  HSC54709  Plantago major Overton, Butler 1979-7-26 10057 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC1196134  Plantago major Joseph P. Tracy 1931-9-7 9657 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC12018  Plantago major Wilbur Peterson 1970-10-28 93 Humboldt 1 mi. W of Blue Lake near R/R crossing Comment
  HSC37954  Plantago maritima Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  RSA246748  Plantago maritima Robert F. Thorne, Percy C. Everett 1965-8-8 35276 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC16868  Plantago subnuda Jerry Parker 1968-10-7 92 Humboldt Near mouth of Mad River Comment
  HSC57692  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-7-25 10917 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC70989  Platanthera sparsiflora Gail Newton 1980-7-20 1648 Humboldt Near Bell Swamps 1426 Comment
  UC1196414  Platanthera sparsiflora Joseph P. Tracy 1948-9-5 18197 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  CAS-BOT-BC91633  Platystemon californicus Alice Eastwood; John Thomas Howell 1937-6-23 4807 Humboldt Little Van Duzen River. Comment
  CAS-BOT-BC91641  Platystemon californicus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  HSC16801  Platystemon californicus Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  HSC45657  Plectritis congesta Diane L. Reed 1978-4-22 26 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC1239596  Plectritis congesta Joseph P. Tracy 1935-6-23 13974 Humboldt French Camp Ridge 1066 Comment
  UC1239579  Plectritis congesta Joseph P. Tracy 1901-4-14 1016 Humboldt Ocean Beach at Humboldt Bay Ocean Beach Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC76591  Pleuricospora fimbriolata Teresa Prendusi 1981-7-7 140 Humboldt Near Slate Creek Butte. 1158 Comment
  SEINET200957 Image available Pleuropogon refractus J. P. Tracy 1932-7-14 10539 Humboldt Corral Prairie 1524 Comment
  UC1145106  Pleuropogon refractus Joseph P. Tracy 1950-7-2 18961 Humboldt 6 mi. n.e. Hawkins Bar (at Fern Spring, Happy Camp Mt..); Trinity Summit Range, Happy Camp Mt., Fern Spring 1280 Comment
  UCD90106  Pleuropogon refractus R. Tofsrud 1949-7-22 s.n. Humboldt on road between Scotia and Capetown. Comment
  HSC10662  Poa bulbosa D. E. Anderson 1963-5-18 2446 Humboldt 1.4 mi. W of Berry Summit. Comment
  UC1103189  Poa bulbosa Joseph P. Tracy 1938-7-4 15988 Humboldt Valley of S Yager Creek 762 Comment
  RSA10047  Poa howellii Joseph P. Tracy 1929-7-4 8619 Humboldt French Camp Ridge 1067 Comment
  UC180506  Poa howellii Joseph P. Tracy 1913-6-20 4243 Humboldt lower foothills of Buck Mt (nw slope); Northern Coast Ranges 762 Comment
  UC525627  Poa howellii Joseph P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC10721  Poa kelloggii D. E. Anderson 1965-5-6 3622 Humboldt 4.8 mi. W of bridge over N Fork of Mad River, along Hwy. 299 Comment
  HSC10722  Poa kelloggii E. W. Styskel 1963-4-20 17 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 305 Comment
  POM126109  Poa kelloggii Joseph P. Tracy 1906-5-20 2463 Humboldt Near Eureka; Region about Humboldt Bay 0 Comment
  RSA183645  Poa kelloggii D. E. Anderson 1965-5-6 3622 Humboldt 4.8 miles west of bridge over North Fork of Mad River, along Hw. 299. Alder bench below highway backslope Comment
  UC39617  Poa kelloggii Harley P. Chandler May, 1901 1183 Humboldt near Eureka; North Coast Ranges, region about Humboldt Bay 30 Comment
  CAS-BOT-BC254280  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, S of point of the Cape, near ocean shore 30 Comment
  UCD91542  Poa macrantha J. W. Congdon 1904-7-3 s.n. Humboldt on the Peninsula. City of Eureka. Comment
  CAS-BOT-BC255943  Poa pratensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UCD91845  Poa pratensis Les Berry 1956-6-20 s.n. Humboldt May Ranch, Bridgeville. Comment
  UCD91937  Poa pratensis A. Murphy 1951-5-18 s.n. Humboldt W. Roscoe Ranch, Upper Mattole, near Mattole River. 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
  HSC97611  Poa pratensis subsp. pratensis Cara Witte 2007-6-4 204 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UCD90330  Poa secunda A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3478 Humboldt Head of South Yager Creek, near Yager. Comment
  CAS-BOT-BC235981  Poa secunda subsp. secunda A. G. Vestal 1937-6-23 s.n. Humboldt Kneeland Prairie Comment
  HSC32337  Poa secunda subsp. secunda D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5644 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC33742  Poa secunda subsp. secunda Joseph Burtt Davy and Walter C. Blasdale 1899-6-23 5862 Humboldt Trinity Summit Comment
  UC1145116  Poa trivialis Joseph P. Tracy 1943-7-18 17435 Humboldt Big Lagoon 9 Comment
  RSA0022165  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  CAS-BOT-BC232888  Polemonium carneum Carl B. Wolf 1937-8-10 9093 Humboldt Big Lagoon, S side. W of Redwood Highway 6 Comment
  HSC17210  Polemonium carneum J. Wendell Howe 5 May [year missing] Humboldt Big Lagoon Comment
  UC1178965  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 3 Comment
  HSC17225  Polygala californica J. Wendell Howe 11 May [year missing] Humboldt Kneeland Comment
  UC17439  Polygala californica C. C. Marshall 1888-1 Humboldt Eel River Region Comment
  UC502963  Polygala californica Joseph P. Tracy 1927-7-24 8291 Humboldt Upper Mattole Northern Coast Ranges, Upper Mattole 152 Comment
  SEINET10537775  Polygonum Mary Susan Taylor 1990-8-22 Taylor 6081 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC1541401  Polygonum amphibium var. emersum H. E. Parks August 1934 5165 Humboldt Big Lagoon Comment
  RSA506995  Polygonum amphibium var. emersum H. E. Parks 1934-08 5165 Humboldt Hulmboldt County: Big Lagoon, Host of rust Comment
  HSC12591  Polygonum aviculare C. Kline 1970-11-9 64 Humboldt .5 mi. N of Bayside, Bayside Rd. Comment
  HSC83989  Polygonum aviculare L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 224 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  CAS-BOT-BC414302  Polygonum aviculare subsp. neglectum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC672971  Polygonum bistortoides Joseph P. Tracy 1932-7-10 10384 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC672972  Polygonum bistortoides Joseph P. Tracy 1927-6-18 8171 Humboldt Bear River Ridge 609 Comment
  RSA144208  Polygonum coccineum Peter H. Raven 1961-8-22 16575 Humboldt Chileno Valley Comment
  HSC54692  Polygonum douglasii Overton, Butler 1979-7-26 9989 Humboldt Near Willow Creek 1341 Comment
  HSC76039  Polygonum douglasii Overton, Butler 1979-8-2 12577 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC55062  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11624 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  POM232027  Polygonum paronychia I. L. Wiggins 1930-7-11 4685 Humboldt Near Samoa Comment
  UC162327  Polygonum paronychia Joseph P. Tracy 1911-5-30 3200 Humboldt Bucksport Northern Coast Region, Region about Humboldt Bay 0 Comment
  JEPS79950  Polygonum polystachyum Joseph P. Tracy 1940-10-18 16775 Humboldt Eureka 30 Comment
  SEINET3404060 Image available Polygonum spergulariiforme H. E. Parks, J. P. Tracy 1930-9-15 767 Humboldt Bald Hills, Kneeland 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
  UCD136910  Polypodium scouleri Linda M. Barker 1976-3-11 1327 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC1121  Polypodium scouleri J. R. Good 1964-5-13 48 Humboldt N 0.25 mi. from end of Lanpheres Rd. on sand dune Comment
  HSC10823  Polypogon australis D. E. Anderson 1965-5-8 3656 Humboldt W end of bridge over Trinity River, 0.5 mile S of Willow Creek. Comment
  LA10109  Polypogon interruptus H. S. Yates; 1936-6-16 5678 Humboldt 1 mi. NE of Samoa 3 Comment
  UC526769  Polypogon maritimus Joseph P. Tracy 1930-10-19 9236 Humboldt Eel River on gravel bars Alton to Fortuna; Eel River 15 Comment
  RSA54138  Polypogon monspeliensis Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  UCD91220  Polypogon monspeliensis Linda M. Barker 1976-6-22 1625 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1440065  Polystichum californicum Danin & H. G. Baker 1960-9-2 658 a Humboldt ca. 2 mi n Dyerville (High Rock on w side of Eel River, along Ave. of the Giants) Comment
  HSC46091  Polystichum imbricans J. P. Smith, Steve Selva 1970-6-14 3814 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC49919  Polystichum munitum Maralyn O'Meara 1973-2-9 122 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  SDSU276  Polystichum munitum D. R Harvey 1938-8-13 2251 Humboldt Redwood Park. Comment
  UCSB29341  Polystichum munitum Phelps, M. 1972-3-20 Humboldt 1.5 miles from Gaberville along Old Briceland Rd., 0.5 miles N of roadside. 213 Comment
  HSC54558  Polystichum scopulinum Overton, Butler 1979-7-24 9567 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  JEPS33236  Polystichum scopulinum Lincoln Constance 1934-6-4 824 Humboldt S Fork Eel River Bull Creek Region Comment
  HSC62984  Potamogeton natans David Wheeler 1979-4-20 Humboldt Clam Beach Ponds, .25 mi. S of Crannel Rd., between the frontage road and Hwy. 101 Comment
  UC154225  Potentilla anserina subsp. pacifica Joseph P. Tracy 1907-7-20 2590 Humboldt near Samoa (region about Humboldt Bay); Northern Coast Region, Region about Humboldt Bay 0 Comment
  HSC90260  Potentilla anserina subsp. pacifica Jean Hanson 1980-5-24 71 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka. W end of island Comment
  POM366485  Potentilla anserina var. grandis Glenn A. Gorelick 1967-6-4 s.n. Humboldt Samoa Beach, near Eureka. Marine Sand dunes. Comment
  HSC48754  Potentilla gracilis var. fastigiata Brad Klipfel 1973-6-10 55 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC158492  Potentilla gracilis var. gracilis Doris K. Kildale 1927-7-10 3721 Humboldt Gans Prairie - on Bald Hills road 609 Comment
  HSC79489  Prosartes hookeri Kenneth Clark 1980-3-24 539 Humboldt Upper terrace of Dead Man's Gulch 76 Comment
  HSC15466  Prosartes smithii J. F. Knezevich 1968-5-21 446 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  CAS-BOT-BC517504  Prosartes smithii H. C. Cantelow 1936-5-18 1342 Humboldt 3 miles E of Orick Comment
  CAS-BOT-BC517507  Prosartes smithii C. Epling; Wm. Robison 1935-7-24 s.n. Humboldt Dyerville Comment
  CAS-BOT-BC517509  Prosartes smithii Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of Eel River Comment
  CDA40758  Prunella vulgaris subsp. lanceolata M. Pryor 1948-7-29 s.n. Humboldt 1 mile east of Loleta. 0 Comment
  HSC14303  Prunella vulgaris subsp. lanceolata William J. Ferlatte, B. D. Rodgers 1966-6-7 2083 Humboldt 1 mi. E of Forest Glen 732 Comment
  UC1225839  Prunella vulgaris var. vulgaris Joseph P. Tracy 1942-10-18 17404 Humboldt Jacoby Creek near the quarry Jacoby Creek 152 Comment
  HSC38513  Prunus emarginata D. E. Anderson, J. P. Smith 1971-6-18 1087 Humboldt Horse Mtn. Comment
  SEINET11917572  Prunus virginiana J. P. Tracy 1950-6-25 18881 Humboldt Burr Valley Rd, Buck Mt 1067 Comment
  CAS-BOT-BC357269  Pseudognaphalium microcephalum Joseph P. Tracy 1938-8-14 16111 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC40261  Pseudognaphalium ramosissimum Linda M. Barker 1976-8-2 1678 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC67443  Pseudognaphalium stramineum J. P. Smith 1971-10-6 4936 Humboldt End of Murray Rd. in McKinleyville. Comment
  CAS-BOT-BC80119  Pseudotsuga menziesii L. B. Kildale 1930-9-21 10219 Humboldt Bluff Creek trail to Fish Lake Comment
  HSC98638  Pseudotsuga menziesii Cara Witte 2008-7-11 884 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  MACF017382  Pseudotsuga menziesii Trudy R. Ericson 1974-8-5 199 Humboldt Hwy. 299 about 30 mi. east of Eureka in Shasta-Trinity National Forest Comment
  OBI36577  Pseudotsuga menziesii var. menziesii David J. Keil 1983-7-1 17264 Humboldt Ca. 8 mi W of jctn US101 along Bull Crk Flats rd Comment
  UC1174841  Pseudotsuga menziesii var. menziesii P. C. Everett and E. K. Balls 1959-10-25 23971 Humboldt 7 mi sw from Ferndale (along Old Coast Road to Capetown.); Old Coast Road 563 Comment
  UC1222911  Psilocarphus oregonus Joseph P. Tracy 1949-8-11 18479 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek); Kinsey Ridge 1402 Comment
  UC1223162  Psilocarphus tenellus Joseph P. Tracy 1948-7-26 18075 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC46092  Pteridium aquilinum var. pubescens J. P. Smith, Steve Selva 1970-6-14 3855 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  RSA43879  Pycnanthemum californicum H. M. Pollard 1947-8-28 s.n. Humboldt Near old placer mine, north of Forest Service Station, Orleans. Comment
  JEPS66559  Pyrola asarifolia Joseph P. Tracy 1936-6-28 15016 Humboldt Bald Mountain at Lake Prairie 1066 Comment
  HSC59503  Pyrola asarifolia M. A. Ericksen 1979-5-29 306 Humboldt Beside Patrick's Point Dr. Comment
  HSC76592  Pyrola crypta Denis Kearns 1981-7-24 449 Humboldt Near Whiteys Peak. 1768 Comment
  JEPS66563  Pyrola crypta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1584 Comment
  HSC41317  Pyrola picta Brad Klipfel 1974-9-2 535 Humboldt Horse Mtn. Comment
  UC1225818  Pyrola picta Joseph P. Tracy 1948-8-15 18148 Humboldt Trinity Summit, on ridge 2 miles east of Grove's Prairie 1524 Comment
  SD42325  Pyrola secunda Carl B. Wolf 1937-8-13 9264 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road towards Trinity Summit 1676 Comment
  CAS-BOT-BC94310  Quercus garryana Joseph P. Tracy 1941-3-26 16845 Humboldt South Fork of Trinity River: mountain slopes W of its mouth Comment
  JEPS37943  Quercus garryana W. L. Jepson Jul 16 1902-Jul 23 1902 2060 Humboldt trail to Devil's Backbone Trinity Summit 2133 Comment
  UC1196516  Quercus garryana Joseph P. Tracy 1935-10-6 14754 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC102516  Quercus garryana var. breweri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1502 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 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
  HSC70635  Quercus sadleriana R. York 1980-5-18 601 Humboldt Near Black Mtn. 792 Comment
  UCD47250  Quercus sadleriana W. L. Jepson 1902-7-16 2033 Humboldt Ridges and slopes just below summit; Trinity Summit. 1524 Comment
  HSC55279  Quercus vacciniifolia Overton, Butler 1979-8-2 12695 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74169  Quercus vacciniifolia M. A. Baker 1980-7-23 3187 Humboldt Near Orleans Mtn. 1859 Comment
  SBBG111333  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt House Mtn at jct of rd to Grouse Mtn and rd to Horse Mtn Mine 1463 Comment
  UC1135804  Quercus vacciniifolia A. E. Wieslander 1931-5-19 204 Humboldt near Orleans; Klamath Forest, Hoopa Quad. Comment
  UCD47445  Quercus vacciniifolia John M. Tucker 1948-9-3 1851 Humboldt California, Humbolt Co.; Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest; Comment
  CAS-BOT-BC104664  Quercus wislizeni J. G. Lemmon 1904-1-1 s.n. Humboldt Eel River Comment
  UC1222294  Quercus wislizeni Joseph P. Tracy 1950-6-15 18796 Humboldt 7 mi n Harris; Mail Ridge Comment
  HSC100904  Ranunculus Carl C. Marshall Apr 1886 87 Humboldt Humboldt Hill. Comment
  JEPS5915  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1937-5-30 15311 Humboldt in shallow pond near Bosworth's; Larrabee Creek 365 Comment
  UC1103006  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1926-7-5 7722 Humboldt pond near Redwood House (head of creek); Northern Coast Ranges, Grizzly Creek 609 Comment
  UC13903  Ranunculus aquatilis var. hispidulus W. C. Blasdale 1896-6-7 Humboldt Grahams Comment
  POM118706  Ranunculus californicus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1196241  Ranunculus californicus Joseph P. Tracy 1901-4-14 1024 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  HSC18135  Ranunculus californicus var. cuneatus A. H. Teshima 1963-2-15 2 Humboldt Moonstone Beach Comment
  HSC24631  Ranunculus flammula var. ovalis J. P. Tracy 1937-7-17 15436 Humboldt Eureka 46 Comment
  HSC41655  Ranunculus flammula var. ovalis J. O. Sawyer 1977-4-25 3043 Humboldt N side of Buttermilk Lane in Sunny Brae across from house 1425 Comment
  HSC79336  Ranunculus occidentalis D. H. Norris 1970-5-20 12178 Humboldt Crest of Big Hill Rd. E of Hoopa Comment
  JEPS55004  Ranunculus occidentalis Lincoln Constance 1934-5-24 645 Humboldt Bull Creek Region South Fork Eel River 121 Comment
  UC1196231  Ranunculus occidentalis Joseph P. Tracy 1934-4-8 13173 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC102107  Ranunculus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1010 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC45624  Ranunculus occidentalis var. occidentalis Diane L. Reed 1978-4-22 11 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC97644  Ranunculus occidentalis var. occidentalis C. Witte 2007-5-8 12 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  POM126167  Ranunculus orthorhynchus Joseph P. Tracy 1922-5-21 6050 Humboldt Fieldbrook. 61 Comment
Read comments
Oct 27 2009
  UC183728  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3604 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1196260  Ranunculus pusillus Joseph P. Tracy 1935-5-25 13845 Humboldt Fort Seward 106 Comment
  HSC71213  Ranunculus sardous Thomas W. Nelson, Doris K. Niles 1979-5-19 4696 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC18191  Ranunculus uncinatus Jack Rockwell 1962-4-29 33 Humboldt N Bank of Van Duzen River, E of Hwy. 101 Comment
  HSC56011  Ranunculus uncinatus Gilbert Muth 1979-7-31 11494 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC18192  Ranunculus uncinatus E. W. Styskel 1963-5-16 32 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  UC1199217  Raphanus sativus J. P. Tracy 1906-4-29 2427 Humboldt immediate vicinity of Eureka 0 Comment
  UC177180  Rhamnus purshiana Joseph P. Tracy 1913-6-13 4108 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA355693  Rhamnus purshiana Walter Wisura, Dave Kelly 1986-7-30 4134 Humboldt N of Crannel, on Lousiana Pacific Lumber Co. property, ca. 6 mi beyond the gate, beyond the nursery area, at edges of opening in Redwood forest. Comment
  CAS-BOT-BC56612  Rhododendron macrophyllum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  RSA69211  Rhododendron macrophyllum A. D. Tenney 1925-04 6020 Humboldt Arcata. Comment
  SDSU3418  Rhododendron macrophyllum D. F. Howe 1963-5-26 3552 Humboldt 3.2 miles east of Orick and Bald Hill road. 457 Comment
  UC1121090  Rhododendron macrophyllum A. E. Wieslander 1931-5-17 195 Humboldt Orick-Orleans Road Comment
  HSC97939  Rhododendron occidentale Cara Witte 2007-6-19 290 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  CAS-BOT-BC200390  Rhododendron occidentale var. paludosum Carl B. Wolf 1927-8-28 1174 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  CAS-BOT-BC169149  Ribes inerme var. klamathense Thomas W. Nelson; Jane P. Nelson 1977-5-30 3420 Humboldt Growing beside State Route 36 just west of Dinsmore at highway bridge over Van Duzen River - North Coast Ranges 731 Comment
  UC154125  Ribes inerme var. klamathense Joseph P. Tracy 1908-6 2767 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC168876  Ribes lacustre Joseph P. Tracy 1933-7-16 12784 Humboldt South Fork Mountain, openings in fir forest near McKay Camp 1676 Comment
  UC1198916  Ribes lacustre Joseph P. Tracy 1942-6-23 17250 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC492208  Ribes lacustre Joseph P. Tracy 1932-7-16 10623 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC56313  Ribes laxiflorum J. P. Tracy 1897-4-8 Humboldt Eureka Comment
  HSC102571  Ribes lobbii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1558 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC40559  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-5-23 2523 Humboldt SW facing slopes 1666 Comment
  HSC56309  Ribes lobbii Overton, Butler 1979-8-2 12628 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1198926  Ribes lobbii Joseph P. Tracy 1932-7-17 10666 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UC673202  Ribes lobbii Lincoln Constance, Reed C. Rollins 1942-5-11 2864 Humboldt 8 mi e Blue Lake (near summit); North Coast Ranges Comment
  UC534986  Ribes menziesii Harold E. Parks April 1933 4402 Humboldt vicinity Trinidad (type locality); McNeils Creek Comment
Read comments
Jun 26 2012
  UC902109  Ribes menziesii Joseph P. Tracy 1948-3-6 17954 Humboldt Trinidad 60 Comment
  HSC58052  Ribes nevadense G. L. Clifton, Griswold 1979-8-1 11918 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC20326  Ribes roezlii Doris K. Kildale 1926-6-27 2232 Humboldt Little Van Duzen River, at bridge on Bridgeville-Red Bluff Rd. Comment
  UCSB24364  Ribes roezlii Tracy, Joseph 1933-3-5 Humboldt north coast ranges 30 Comment
  HSC20349  Ribes roezlii var. cruentum Eugene Andreuccetti 1964-5-2 39 Humboldt 5 mi. from Willow Creek on Hwy. 299 Comment
  JEPS79967  Ribes roezlii var. cruentum Joseph P. Tracy 1930-7-25 8885 Humboldt Trinity River Valley at Willow Creek Trinity River Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  CAS-BOT-BC212520  Ribes sanguineum Joseph P. Tracy 1949-4-10 18281 Humboldt Redwood Creek at Berry's 365 Comment
  UC1039819  Ribes sanguineum J. I. Mallory 1956-4-27 126 Humboldt 1.5 mi w Petrolia (at head of Jeffrey Gulch, Humboldt base and Mer.); Quad. 28-B4 167 Comment
  CAS-BOT-BC144689  Ribes sanguineum var. glutinosum C. Epling; Wm. Robison 1935-7-22 s.n. Humboldt Patrick's Point Comment
  HSC56193  Ribes viscosissimum Gilbert Muth 1979-8-1 12134 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC47611  Rigiopappus leptocladus J. P. Smith 1977-4-23 9028 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC47612  Rigiopappus leptocladus J. P. Smith 1977-4-23 9027 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC176486  Rigiopappus leptocladus Joseph P. Tracy Jul 27 1908-Jul 30 1908 2686 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SD129723  Romanzoffia californica Barbara Ertter, Thomas J. Delendick 1987-5-16 6937 Humboldt 3 mi E of Berry Summit on Hwy 299, ca 20 airmiles E of Arcata; base of large volcanic roack on S side of road above Willow Creek 800 Comment
  HSC57635  Romanzoffia sitchensis G. L. Clifton, Griswold 1979-7-25 10793 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC74507  Rorippa curvisiliqua Doris K. Kildale 1929-5-26 9140 Humboldt Klamath River at Orleans. 152 Comment
  UC492262  Rorippa curvisiliqua H. E. Parks and Joseph P. Tracy 1931-5-17 9426 Humboldt Trinity River Valley Willow Creek; Northern Coast Ranges, Trinity River Valley nr Willow Creek 152 Comment
  UC492261  Rorippa palustris H. E. Parks and Joseph P. Tracy 1931-5-17 9425 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River nr Willow Creek 152 Comment
  UC161000  Rosa Joseph P. Tracy 1911-7-7 3410 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC902153  Rosa Joseph P. Tracy 1947-8-24 17889 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC902154  Rosa Joseph P. Tracy 1949-8-7 18438 Humboldt near Box Camp; Trinity Summit 1524 Comment
  JEPS47282  Rosa eglanteria W. L. Jepson 1936-8-15 17902 Humboldt Strongs station Van Duzen River, Grizzly Creek Comment
  HSC99695  Rosa gymnocarpa Jimerson, J. Pageau 1979-6-12 532 Humboldt Near Hopkins Butte, close to the town of Orleans 1037 Comment
  UC467683  Rosa gymnocarpa Mrs. M. H. Manning 1901-6-7 61 Humboldt Hupa Comment
  UC492160  Rosa gymnocarpa Joseph P. Tracy 1932-7-13 10493 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC98692  Rosa gymnocarpa var. serpentina Cara Witte 2008-6-15 751 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1 mile north of intersection with 6N36A. 1428 Comment
  HSC98852  Rosa gymnocarpa var. serpentina Cara Witte 2008-6-18 748 Humboldt Horse Mountain Botanical Area. Approximately 1 mile east of junction 6N36 and 6N36A. 1394 Comment
  CAS-BOT-BC146833  Rosa nutkana M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  HSC19617  Rosa nutkana A. E. Inman 1962-5-25 Humboldt N bank of Mad River, S of Azalea Hill Rd. Comment
  HSC31560  Rosa nutkana Glenn McGourty 1974-6-1 77 Humboldt Comment
  JEPS45644  Rosa nutkana var. nutkana Milo S. Baker 1923-7-15 11 Humboldt outskirts of Eureka Comment
  UC667045  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-9 14886 Humboldt Bear River Ridge 609 Comment
  SEINET4092393  Rosa pisocarpa O. M. Clark 1932-1 782 Humboldt South Eureka. Comment
  HSC48415  Rosa rubiginosa J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9926 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  HSC73244  Rubus leucodermis M. A. Baker 1980-5-18 1341 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC147244  Rubus parviflorus Doris K. Kildale 1926-3-26 1635 Humboldt Old Kneeland Road 609 Comment
  CAS-BOT-BC147247  Rubus parviflorus Harold E. Parks; Joseph P. Tracy 1942-5-16 11562 Humboldt Vicinity of Garberville 152 Comment
  CAS-BOT-BC147249  Rubus parviflorus Ella Dales Cantelow 1936-5-18 1403 Humboldt 5 mi. N. of Orick Comment
  JEPS47713  Rubus parviflorus Mrs. George Parrish 1930-5-21 Humboldt Trinidad Comment
  SBBG115409  Rubus parviflorus A. T. Leiser 1980-7-9 Humboldt N of Orick, Hwy 101 reroute, near Redwood Park Comment
  SEINET10771638  Rubus parviflorus Benjamin W. van Ee, Melissa A. van Ee; Pieter J. van Ee; Juliana M. van Ee 2014-1-1 van Ee 1835 Humboldt By pull-out just W of Hwy 101 on the E shore of Big Lagoon, N of Big Lagoon County Park. 5 Comment
  UCD98613  Rubus parviflorus Lindsay Clark; Stella Hartono 2009-9-15 KRC 40 Humboldt Nadelos Campground in King Range Conservation Area. 506 Comment
  HSC74629  Rubus ursinus M. A. Baker 1980-5-17 1236 Humboldt Near Le Perron Peak 1066 Comment
  HSC96515  Rubus ursinus Gordon Leppig 1998-5-11 762 Humboldt Big Lagoon County Park. 3 Comment
  UCD17838  Rubus ursinus H. Olmo 8-10 May 1962 62- 35 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. 670 Comment
  UC1199269  Rudbeckia occidentalis Joseph P. Tracy 1932-7-20 10727 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  HSC70394  Rumex acetosella M. A. Baker 1980-6-7 1847 Humboldt Near Ammon Creek 732 Comment
  HSC17583  Rumex acetosella J. E. Lankila 1962-5-14 28 Humboldt W bank of river at Fernbridge Comment
  HSC75496  Rumex californicus J. O. Sawyer 1980-7-18 3638 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC37577  Rumex crispus J. D. Ackerman 1975-6-10 452 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd. S of Manila Comment
  HSC99552  Rumex obtusifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 217 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1541397  Rumex salicifolius var. salicifolius Harold E. Parks 1934-8 5166 Humboldt Big Lagoon Comment
  CAS-BOT-BC454158  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 Comment
  HSC59504  Ruppia maritima M. A. Erickson 1979-5-23 305 Humboldt Arcata, creek adjacent to an abandoned logging pond at the S end of H St., Arcata Comment
  RSA84988  Ruppia maritima F. W. Peirson 1923-7-11 3962 Humboldt 20 miles south of Eureka. Comment
  SEINET3893324  Ruppia maritima Rick Lundquist 1979-5-31 111 Humboldt Arcata South Quadrangle. At south end of H Street.; 0 0 Comment
  UCD92348  Rytidosperma penicillatum A. H. Murphy 1947-6-1 s.n. Humboldt Parrott's Ranch, Table Bluff, ca. 1.5 miles north of Loleta. Comment
  JEPS79972  Sagina apetala Joseph P. Tracy 1933-5-19 12200 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  UC1103532  Sagina apetala Joseph P. Tracy 1946-6-23 17598 Humboldt roadside near Dan McBride place Kneeland Prairie 762 Comment
  SEINET5337061  Sagina decumbens subsp. occidentalis J. Tracy 1905-4-30 2172 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay Comment
  HSC71114  Sagina procumbens Thomas W. Nelson 1977-6-4 3388 Humboldt HSU campus along B St. along W side of Biology-Engineering Building Comment
  HSC32142  Sagina saginoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5609 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  CAS-BOT-BC132667  Salix A. T. Whittemore 1980-3-15 80 -001 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CAS-BOT-BC132710  Salix A. T. Whittemore 1980-3-15 80 -004 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  UC490587  Salix Joseph P. Tracy 1932-4-17 9798 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC129886  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  RSA0034667  Salix coulteri Harold E. Parks 1931-3-25 0903 Humboldt Orick, Van Duzen River 6 Comment
  SBBG58914  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt mouth of Willow Crk at Trinity River Comment
  CAS-BOT-BC106854  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01212 Humboldt 1 mile north of Samoa Comment
  CAS-BOT-BC106860  Salix hookeriana W. J. Ferlatte 1967-6-13 1118 Humboldt Clam Beach Lagoon 6 Comment
  CAS-BOT-BC107707  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC107710  Salix hookeriana L. R. Abrams 1916-7-18 6127 Humboldt Arcata to Trinidad Comment
  CAS-BOT-BC107716  Salix hookeriana Doris K. Kildale 1926-7-11 2364 Humboldt Mouth of Bear River - Capetown Comment
  CAS-BOT-BC107745  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1216 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  HSC40863  Salix hookeriana Linda M. Barker 1976-4-30 1416 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC40864  Salix hookeriana Linda M. Barker 1976-4-30 1415 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC40870  Salix hookeriana Linda M. Barker 1976-4-13 1383 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC96368  Salix hookeriana Gordon Leppig 1999-4-15 1121 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS12913  Salix hookeriana H. E. Parks and Joseph P. Tracy 1927-4-23 7922 Humboldt Big Lagoon; Northern Coast Ranges 6 Comment
  JEPS13091  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Fortuna; bank of Eel River 15 Comment
  LA208758  Salix hookeriana Harold E. Parks; August 1931 1053 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  RSA171962  Salix hookeriana Robert F. Thorne 1957-9-2 18987 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  RSA183566  Salix hookeriana R. I. Bonn 1965-4-3 11 Humboldt Four miles west of Arcata on Lanphere Rd. Comment
  UC1196545  Salix hookeriana Joseph P. Tracy 1932-5-10 9951 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC275500  Salix hookeriana Joseph P. Tracy 1925-2-1 6930 Humboldt lowlands near Salmon Creek Corners (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC275501  Salix hookeriana Joseph P. Tracy 1925-11-15 7314 Humboldt lowlands at foot of Table Bluff (near Salmon Creek); Northern Coast Ranges, Humboldt Bay 6 Comment
  UC470434  Salix hookeriana Joseph P. Tracy 1931-10-18 9742 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC481268  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon; in sand dunes Comment
  UC506346  Salix hookeriana Joseph P. Tracy 1933-3-19 10925 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UCD111017  Salix hookeriana Harold E. Parks 1931-5-28 0999 Humboldt Little River Lagoon. Comment
  JEPS12975  Salix laevigata Joseph P. Tracy 1932-4-23 9835 Humboldt between Miranda and Redway (S. Fork of Eel River); Northern Coast Ranges 91 Comment
  UC504057  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 2 Humboldt around Eureka Eureka Comment
  CAS-BOT-BC125228  Salix lasiandra var. lasiandra Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01206 Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad, elevation approximately sea level Comment
  CAS-BOT-BC128200  Salix lasiandra var. lasiandra Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC107601  Salix lasiolepis Joseph P. Tracy; Harold E. Parks 1933-3-19 11006 Humboldt On Van Duzen River, 2 miles west of Bridgeville 228 Comment
  CAS-BOT-BC107650  Salix lasiolepis Joseph P. Tracy; Harold E. Parks 1933-3-19 11007 Humboldt On Van Duzen River, 2 miles west of Bridgeville 228 Comment
  HSC20003  Salix lasiolepis J. P. Tracy 1933-4-9 10969 Humboldt Blue Slide, Van Duzen River 91 Comment
  HSC96365  Salix lasiolepis Gordon Leppig 1999-4-15 1123 Humboldt Big Lagoon County Park, Big Lagoon Bog, E fen edge 3 Comment
  JEPS12897  Salix lasiolepis Joseph P. Tracy 1927-4-10 7887 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  JEPS12923  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1933-3-19 11005 Humboldt near Bridgeville; Northern Coast Ranges 182 Comment
  JEPS14776  Salix lasiolepis Joseph P. Tracy 1933-3-19 10931 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  UC1225927  Salix lasiolepis Joseph P. Tracy 1947-6-28 17755 Humboldt Bridgeville Van Duzen River 198 Comment
  UC469423  Salix lasiolepis Joseph P. Tracy 1931-8-16 9613 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UC469424  Salix lasiolepis Joseph P. Tracy 1931-8-16 9614 Humboldt vicinity of Garberbille; Northern Coast Ranges 121 Comment
  UC481340  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC490553  Salix lasiolepis Joseph P. Tracy 1932-3-6 9774 Humboldt at mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC506509  Salix lasiolepis Joseph P. Tracy 1932-6-4 10130 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC512117  Salix lasiolepis Joseph P. Tracy 1933-4-2 10959 Humboldt on Trinity Hwy e Redwood Creek; Berry's Mountain 762 Comment
  UC519329  Salix lasiolepis Joseph P. Tracy 1933-5-14 12181 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UC519330  Salix lasiolepis Joseph P. Tracy 1933-5-20 12266 Humboldt Mattole River, near Petrolia 15 Comment
  UC526717  Salix lasiolepis Joseph P. Tracy 1934-7-9 13356 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  UCD111589  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 01333 Humboldt Trinity River, near bridge on Trinity Highway. 152 Comment
  HSC20004  Salix lasiolepis J. P. Tracy 1932-6-19 10243 Humboldt North Coast Ranges; Buck Mountain, lower foothills of its northwest slope 762 Comment
  CAS-BOT-BC107290  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01239 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107418  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-4-1 1701 Humboldt [Dobbyns] Dobbyn Creek Comment
  RSA10910  Salix lasiolepis var. sandbergii Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1324 Humboldt Berry's Mountain. E of Redwood Creek. On Trinity Hwy. 762 Comment
  HSC20059  Salix melanopsis H. E. Parks 1931-5-14 961 Humboldt Van Duzen River, between Alton and Carlotta 15 Comment
  RSA5738  Salix melanopsis H. E. Parks 1931-5-14 956 -a Humboldt Van Duzen River above Bridgeville. 300 Comment
  SBBG57953  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 967 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  SD975  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 967 Humboldt Mouth of Willow Creek at Trinity River, sandbars 149 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
  UC469448  Salix melanopsis Joseph P. Tracy 1931-5-3 9346 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC481265  Salix melanopsis Harold E. Parks 1931-5-28 1019 Humboldt Little River Lagoon Comment
  UC481341  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  CAS-BOT-BC129201  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1210 a Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad, appraximately at sea level. Comment
  CAS-BOT-BC129132  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay, near sea level Comment
  CAS-BOT-BC129140  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  CAS-BOT-BC129173  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  HSC56194  Salix scouleriana Gilbert Muth 1979-8-1 12137 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  POM280933  Salix scouleriana Lyman D. Benson 1929-7-14 1810 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  SD884  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humbolt Bay Comment
  UCD111733  Salix sessilifolia Carleton R. Ball; Harold E. Parks, and Joseph P. Tracey 1932-5-12 01245 Humboldt Van Duzen River at Blue Slide. 91 Comment
  CAS-BOT-BC128960  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt Rocky exposed places, head of Brett Hole - Klamath Mountains 1828 Comment
  HSC20109  Salix sitchensis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1230 Humboldt Van Duzen River, 1.5 mi. E of Alton 30 Comment
  HSC38182  Salix sitchensis Thomas W. Nelson 1976-11-5 3297 Humboldt Along S fork of Martins Slough, upstream from Eureka Muni Golf Course Comment
  HSC90419  Salix sitchensis Jean Hanson 1980-3-8 26 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90438  Salix sitchensis Jean Hanson 1980-3-8 13 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  POM219562  Salix sitchensis H. E. Parks 1931-3-25 903 Humboldt Orick. Van Duzen River. 6 Comment
  RSA168918  Salsola tragus Joseph P. Tracy 1950-8-20 19323 Humboldt Klamath River, near Slate Creek; Below Orleans 8 miles. 122 Comment
  JEPS86686  Sambucus mexicana L. R. Heckard with T. I. Chuang 1990-7-15 6768 Humboldt South Fork Mountain Rd. ca 11 mi n Hwy 36 (near Mad River jct.) 1740 Comment
  CAS-BOT-BC238659  Sambucus nigra subsp. caerulea Doris K. Kildale 1926-9-9 2677 Humboldt Van Duzen River between Strong's [Strongs] Station & Bridgeville. Bar W. Ranch 158 Comment
  HSC90384  Sambucus racemosa var. racemosa Jean Hanson 1980-4-12 43 Humboldt Humboldt Bay, Eureka, Indian (Gunther) Island, on NW edge of dike, W end of the island. Comment
  UC484082  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt along coastal bluffs 1 mi s Trinidad 91 Comment
  UCD170574  Sambucus racemosa var. racemosa Gordon Leppig 1998-4-13 737 Humboldt Arcata, Anvick Rd. 12 Comment
  CHSC68485  Sanicula arctopoides Vernon H. Oswald 1997-4-10 8330 Humboldt Elk Head, north end of Trinidad State Beach. Along the edge of the bluffs overlooking the ocean. 30 Comment
  HSC45318  Sanicula arctopoides R. A. Vanbianchi 1972-3-29 129 Humboldt Samoa Peninsula,W side, across from public boat ramp Comment
  CAS-BOT-BC223251  Sanicula bipinnatifida Joseph P. Tracy 1938-7-4 15985 Humboldt Vicinity of South Yager Creek 762 Comment
  HSC38937  Sanicula crassicaulis Linda M. Barker 1976-5-13 1485 Humboldt 3 mi. W of Arcata. Comment
  UC1222746  Sanicula crassicaulis Joseph P. Tracy 1950-7-6 19023 Humboldt 3 mi s of Burr Valley (Sproston's Place); Sproston's Place 1066 Comment
  UC1222810  Sanicula crassicaulis Joseph P. Tracy 1950-2-12 18601 Humboldt 5 mi e of town of Carlotta (near Riverside Park) 30 Comment
  JEPS972  Sanicula tuberosa Joseph P. Tracy 1933-7-11 12688 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC642317  Sanicula tuberosa Joseph P. Tracy 1933-7-11 12688 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  HSC98998  Sanicula tuberosa Cara Witte 2008-7-10 856 Humboldt Brays Opening on National Forest 1. 0.5 mi. north of intersection with Forest Service Road 4N38. 1393 Comment
  RSA43855  Saponaria officinalis H. M. Pollard 1948-7-26 s.n. Humboldt Banks of Klamath River near Orleans. Comment
  UC1198882  Saxifraga marshallii Joseph P. Tracy 1937-7-24 15511 Humboldt 2 mi se of Devil's Hole; Trinity Summit 1584 Comment
  HSC37549  Schoenoplectus americanus J. D. Ackerman 1975-6-10 465 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  CHSC84708  Schoenoplectus pungens L. P. Janeway 2003-7-27 7932 Humboldt North Coast. East shore of Big Lagoon, on north side of mouth of Tom Creek. 2 Comment
  JEPS79980  Scirpus cernuus Joseph P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  CAS-BOT-BC110928  Scirpus microcarpus Robert F. Thorne; P. Everett 1965-8-9 35320 Humboldt Clam Beach County Park along highway in shallow water of ditch. 3 Comment
  SEINET3914806  Scirpus microcarpus James P. Smith 1973-5-26 6859 Humboldt Scotia Bluffs along the Eel River near Rio Dell.; 0 Comment
  HSC7273  Scirpus microcarpus R. S. White 1965-5-18 87 Humboldt 0.5 mi. off Hwy. 101 on road to Crannel Comment
  UCSC000121  Scirpus paludosus H. L. Person 1932-5-11 s.n. Humboldt near Arcata - Eureka Comment
  UC709438  Scoliopus bigelovii Joseph P. Tracy 1941-4-26 16862 Humboldt Kneeland Prairie 762 Comment
  SEINET12050497  Scoliopus bigelovii F. H. Utech 1988-1 88 -281 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, mile marker 42.00, above Van Duzen River 800 Comment
  SEINET12050513  Scoliopus bigelovii F. H. Utech 1988-1 88 -027 Humboldt 16.6 mi E on CA 36 from junction US 101 near junction of Grizzly Creek & Van Duzen River on CA 36 110 Comment
  HSC31640  Scrophularia californica Glenn McGourty 1974-6-1 82 Humboldt Comment
  HSC37231  Scrophularia californica Lon Hall 1975-6-20 403 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  SDSU11019  Scrophularia californica Harvey 1938-8-13 2246 Humboldt Humbolt State Redwood Park. Comment
  CHSC68503  Scrophularia californica subsp. californica Vernon H. Oswald 1997-4-10 8318 Humboldt Road paralleling Hwy. 101 between Clam Beach and Little River State Beach, north of Arcata. 30 Comment
  HSC97100  Scutellaria antirrhinoides Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1364 Comment
  POM126381  Scutellaria antirrhinoides P. E. Goddard 1907-6-16 b. 127 Humboldt Van Duzen Comment
  HSC35354  Scutellaria siphocampyloides A. M. Montalvo, J. D. Ackerman 1975-6-22 483 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  CDA41033  Scutellaria siphocampyloides B. F. Kemp 1958-7-5 838 -58 Humboldt Knight Ranch, 4 miles north of Willow Creek. 0 Comment
  UC32583  Scutellaria siphocampyloides Chesnut and Drew 1888-7-29 Humboldt Louse Creek Comment
  UC1488732  Sedum laxum Gail Newton 1980-7-15 1549 Humboldt near Sims Mountain; Pilot Creek Quad., near Sims Mountain 430 Comment
  HSC79342  Sedum laxum subsp. flavidum D. K. Imper 1983-6-15 Humboldt Along Hwy. 299 S of Hwy, adjacent to swimming hole Comment
  HSC63212  Sedum laxum subsp. heckneri M. A. Baker 1979-7-6 1015 Humboldt W slope of Rattlesnake Creek Ridge overlooking Red Cap Creek, outcrop and road cut of FS Rd. 10N01 Comment
  HSC58050  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-8-1 11911 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC98691  Sedum radiatum Cara Witte 2008-7-7 837 Humboldt Horse Mountain Botanical Area. 6N38. 1 mile southeast of Horse Mountain Mine. 1312 Comment
  UC14450  Sedum radiatum Chestnut and Drew 1888-7-9 Humboldt Campbell's Comment
  CAS-BOT-BC63827  Sedum spathulifolium L. R. Abrams 1922-6-25 8294 Humboldt Bluffs north of Big Lagoon. Comment
  RSA0074768  Sedum spathulifolium Lyman Benson 1929-7-19 1858 Humboldt Mouth of Matole River. Comment
  CAS-BOT-BC59119  Sedum spathulifolium subsp. pruinosum Ynez Whilton Winblad 1941-6-22 s.n. Humboldt Between Eureka and Orick. Comment
  HSC6481  Sedum spathulifolium var. spathulifolium B. R. Templeton 1962-5-24 Humboldt W side of Berry Summit Comment
  CDA34903  Selaginella kraussiana Dana York, Adrian York & Noah York 2011-4-2 3019 Humboldt Arcata; eastern edge of Humboldt State University Campus in the community forest, along inlet creek to Fern Lake. Comment
  LA209677  Selaginella oregana Lawrence L. Kiefer; 1963-8-6 769 Humboldt Patrick's Point State Park, Lookout Rock 45 Comment
  JEPS37086  Senecio glomeratus Lincoln Constance 1934-6-25 926 Humboldt 4 mi n Dyerville (and <4 mi n?> of n boundary of Humboldt Redwood Park, on Redwood Highway); South Fork Eel River, Bull Creek Region, Englewood Comment
  JEPS37418  Senecio glomeratus W. L. Jepson 1932-8-8 16534 Humboldt Dyerville Perrott Creek, Dyerville 304 Comment
  UC1118078  Senecio glomeratus H. L. Person 1932-7-16 Humboldt hwy n of Trinidad; Rock Point Quadrangle 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
  UC1223155  Senecio integerrimus var. major Joseph P. Tracy 1950-5-6 18638 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC545823  Senecio minimus H. E. Parks 1931-9-1 1058 Humboldt Trinidad 76 Comment
  UCD135607  Senecio minimus R. Tofsrud 1949-7-1 s.n. Humboldt Ferndale, Wildcat grade. Comment
  UC204868  Senecio sylvaticus Joseph P. Tracy 1918-9-1 5095 Humboldt Newells Camp on old Kneelans Praire Road 457 Comment
  HSC98109  Senecio triangularis Cara Witte 2007-6-27 361 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  HSC34816  Senecio vulgaris Dryden 1975-4-20 123 Humboldt Arcata 0 Comment
  HSC90383  Senecio vulgaris Jean Hanson 1980-4-12 48 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island. Comment
  RSA40900  Sequoia sempervirens C. B. Wolf 1944-10-25 11469 Humboldt Along the Eel River Valley, Redwood Highway, 2.4 miles south of Scotia 61 Comment
  SBBG56416  Sequoia sempervirens D. B. Rogers 1937-10-1 Humboldt Scotia, 37 mi S of Eureka Comment
  UC672888  Sequoia sempervirens Joseph P. Tracy 1940-10-17 16770 Humboldt Dyerville 48 Comment
  NY64455  Sequoia sempervirens H. H. Smith 1911-6-16 3824 Humboldt Vanceslan No. 20 Comment
  UCR39801  Sherardia arvensis L. P. Janeway 1984-5-13 775 Humboldt Along the Kneeland/Bridgeville Road c. 15 mi. east of the Kneeland post office just past Lone Star Junction and near Lone Star Creek 610 Comment
  CAS-BOT-BC205566  Sidalcea malachroides Joseph Burtt Davy; Walter C. Blasdale 1899-6-13 5482 Humboldt Camp Grant Comment
  JEPS67223  Sidalcea malachroides W. L. Jepson 1902-6-24 1929 Humboldt above Korbel; above Korbel, Korbel to Angel's Ranch Comment
  SD73190  Sidalcea malachroides Darley F. Howe 1969-6-4 4626 Humboldt 14.6 miles east of Alton on Highway 36. 299 Comment
  HSC48418  Sidalcea malviflora subsp. nana J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9924 Humboldt Hwy. 36 at Camp Creek Rd. 76 Comment
  HSC97915  Sidalcea malviflora subsp. nana Cara Witte 2007-6-14 286 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  HSC98003  Sidalcea malviflora subsp. nana Cara Witte 2007-7-25 582 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1270 Comment
  UC902187  Sidalcea oregana subsp. eximia Joseph P. Tracy 1947-7 17822 Humboldt Box Camp Meadow , Box Camp Meadow (Trinity Summit) 1463 Comment
  HSC104342  Sidalcea oregana subsp. eximia James Regan, Humboldt Redwood Co., LLC 2 Humboldt Table Bluff 46 Comment
  RSA47143  Silene californica Doris K. Kildale 1925-3-28 510 Humboldt Fleener Creek - hillside at mouth of valley on coast. Comment
  CHSC110703  Silene campanulata subsp. campanulata Dean Wm. Taylor 2004-6-24 19130 Humboldt North Coast Range, Horse Mountain, along Titlow Hill road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  HSC57998  Silene grayi G. L. Clifton, Griswold 1979-7-31 11767 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UCR40032  Silene hookeri subsp. bolanderi T. Jimerson 1983-5-26 s.n. Humboldt Six Rivers National Forest, Lower Trinitty Road; roadside bank on the road to Brush Mountain Lookout off Friday Ridge Road. (6N08) 1088 Comment
  CAS-BOT-BC389063  Silene laciniata subsp. californica Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC4170  Silene laciniata subsp. californica Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC35749  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1993 Humboldt French Camp, 20 mi. E of Hwy. 101 Comment
  CAS-BOT-BC364798  Silybum marianum Doris K. Kildale 1926-7-14 2376 Humboldt Trinidad Comment
  UC1198282  Sinapis arvensis J. P. Tracy 1906-6-20 2494 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC75284  Sisymbrium officinale Kenneth Clark 1980-5-10 639 Humboldt Shelter Cove. Dead Man's Gulch. 15 Comment
  POM208981  Sisyrinchium bellum Lincoln Constance 1934-6-4 815 Humboldt South slope of Look Prairie, Bull Creek, Humboldt Redwood Park 381 Comment
  JEPS62117  Smilacina racemosa W. L. Jepson 1902-7-24 2115 a Humboldt 1/2 mi below summit; Trinity Summit Comment
  UC1197799  Smilacina racemosa Joseph P. Tracy 1914-5-17 4474 Humboldt Cumens claim Northern Coast Region, region about Humboldt Bay (on ridge between Ryans Slough and Freshwater Creek) 304 Comment
  UC1196153  Solanum umbelliferum Joseph P. Tracy 1934-6-20 13240 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  RSA15565  Solidago canadensis subsp. elongata C. B. Wolf 1927-8-29 1198 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  RSA47125  Solidago canadensis subsp. elongata Doris K. Kildale 1928-8-17 1211 Humboldt Trinity Summit 1829 Comment
  HSC102169  Solidago elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1081 Humboldt Patterson Meadows 1555 Comment
  UC1223177  Solidago elongata Joseph P. Tracy 1949-8-11 18458 Humboldt Snow Camp 1402 Comment
  UC205162  Solidago elongata Joseph P. Tracy 1919-9-22 5260 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  SEINET6417800 Image available Solidago occidentalis S. K. Harris, C. Wilder 1938-9-7 879 Humboldt Van Dusen River, above Blue Slide Comment
  CHSC13899  Solidago spathulata D. Joley 1967-8-17 65 Humboldt Found growing 10 mi NW of Fortuna. Comment
  HSC40262  Solidago spathulata Linda M. Barker 1976-8-2 1670 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC6199  Solidago spathulata J. W. Johnson 1961-8-17 1042 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  SEINET191265 Image available Solidago spathulata S. K. Harris 1939-9-5 990 Humboldt Samoa. Comment
  HSC39962  Soliva sessilis Linda M. Barker 1976-4-13 1385 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC365810  Soliva sessilis Joseph P. Tracy 1936-6-3 14852 Humboldt Along path near house. Trinity River Valley, at Willow Creek 152 Comment
  HSC104456  Sonchus oleraceus Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 25 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC40944  Sonchus oleraceus Linda M. Barker 1976-6-1 1546 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC6223  Sonchus oleraceus J. W. Johnson 1962-4-8 1216 Humboldt Arcata, Mad River Co. Park Comment
  UC466715  Sorbus scopulina Mrs. Manning 1900-1 Humboldt Mt. Hupa Trinity Summit Comment
  HSC97446  Sparganium emersum Ivy Watson 2008-10-5 35 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  UCD94827  Sparganium emersum Bellue 1932-9-28 s.n. Humboldt Arcata. Comment
  UC672885  Sparganium emersum var. emersum Joseph P. Tracy 1928-9-2 8499 Humboldt near Fruitland 609 Comment
  SEINET3825670  Sparganium eurycarpum Unknown 1912-8-20 2987 Humboldt Lower eal River Valley Comment
  HSC59047  Spergula arvensis Thomas Wood 1979-4-4 93 Humboldt Near Arcata, 3/4 mi. W on Lanphere Rd. after triple intersection with Upper Bay Rd. and Mad River Rd. 0 Comment
  RSA246885  Spergula arvensis R. F. Thorne, Percy C. Everett 1965-8-5 35149 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC389919  Spergula arvensis John H. Thomas 1966-3-19 11488 Humboldt Southern end of Big Lagoon, just inland from the coast between Eureka and Crescent City. Alt. above sea level Comment
  HSC90396  Spergularia macrotheca Jean Hanson 1980-8-28 118 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. Comment
  HSC90774  Spergularia macrotheca var. macrotheca Gail Newton 1983-8-21 3857 Humboldt Elk River Wildlife Area, Eureka. Comment
  RSA0098559  Spergularia marina George K. Helmkamp, E. A. Helmkamp 2001-7-8 7007 Humboldt North coastal strand: North spit of Samoa Peninsula, 0.5 miles N of CA-255 bridge over Humboldt Bay. 6 Comment
  HSC98776  Spergularia rubra Cara Witte 2007-8-9 627 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  JEPS45013  Spiraea douglasii W. L. Jepson 1902-6-24 1924 Humboldt Eureka to Arcata Comment
  POM17174  Spiraea douglasii J. B. Feudge 1923-7-23 57 Humboldt Trinidad. 9 Comment
  RSA472779  Spiraea douglasii Charlotte M. Hoak 1931-7-14 s.n. Humboldt Alton. Comment
  UC1191500  Spiraea douglasii Malcolm A. Nobs and S. Galen Smith 1949-8-9 1226 Humboldt 1 mi n Arcata (at junction of Highway 101 and Highway 299); Mad River Valley Comment
  HSC19746  Spiraea splendens var. splendens R. J. Vernimen 1963-3-25 14 Humboldt Along railroad tracks at Clam Beach lagoons Comment
  UC666994  Spiranthes porrifolia Joseph P. Tracy 1937-6-26 15376 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1196404  Spiranthes romanzoffiana Joseph P. Tracy 1936-8-2 15066 Humboldt French Camp Ridge; by spring 1066 Comment
  UC666993  Spiranthes romanzoffiana Joseph P. Tracy 1934-7-21 13477 Humboldt near Samoa (edges of dunes); Humboldt Bay 6 Comment
  HSC62923  Spirodela punctata J. M. DiTomaso 1979-4-21 893 Humboldt Next to Hwy. 101 at Crannell Rd. exit between Westhaven and Mckinleyville Comment
  UC668222  Stachys ajugoides var. ajugoides Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 18 Comment
  JEPS63051  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC153992  Stachys ajugoides var. rigida J. P. Tracy 1906-5-20 2466 Humboldt immediate vicinity Eureka 0 Comment
  UC668218  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UCLA70846  Stachys ajugoides var. rigida Joseph P. Tracy 1934-7-18 13455 Humboldt Grouse Mountain North Coast Ranges 1615 Comment
  UCLA70873  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UC153991  Stachys ajugoides var. rigida Joseph P. Tracy 1906-6-24 2497 Humboldt region about Humboldt Bay (s side of Humboldt Hill); Northern Coast Region 0 Comment
  UC668221  Stachys ajugoides var. rigida Joseph P. Tracy 1938-8-21 16132 Humboldt in front of s end Stone Lagoon (along coast); Dry Lagoon 3 Comment
  RSA33417  Stachys emersonii Carl B. Wolf 1937-8-13 9246 Humboldt North Coast Range, 11 mi. E. of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC63637  Stachys rigida J. P. Smith 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC23710  Stachys rigida Tim Baroni 1971-6-25 38 Humboldt Comment
  HSC79495  Stachys rigida var. quercetorum Kenneth Clark 1979-7-1 451 Humboldt Dead Man's Gulch, lower terrace 6 Comment
  HSC38476  Stachys rigida var. rigida Lon Hall 1975-6-20 392 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  UC162890  Stellaria media Harley P. Chandler May 1901 1266 Humboldt Redwood Belt; North Coast Ranges 152 Comment
  HSC4271  Stellaria media S. R. Johnson 1965-3-23 17 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC95683  Stellaria media Kevin Thomas 2004-3-18 6 Humboldt Near Clam Beach exit of Hwy. 101 N, along old Hwy. 101, at end of Little River Rd. Comment
  HSC58570  Stipa occidentalis var. occidentalis G. L. Clifton, Griswold 1979-7-26 10297 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC70349  Streptanthus tortuosus M. A. Baker 1980-6-7 1812 Humboldt Near Brush Mtn. 1128 Comment
  HSC70690  Streptanthus tortuosus Gail Newton 1980-7-15 1567 Humboldt Near Sims Mtn. 1311 Comment
  JEPS54025  Streptanthus tortuosus var. orbiculatus W. L. Jepson Jul 16 1902-Jul 23 1902 2118 Humboldt Trinity Summit 2133 Comment
  UC1198798  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1913-6-17 4165 Humboldt near summit Northern Coast Ranges, Buck Mountain 1524 Comment
  HSC58202  Streptanthus tortuosus var. tortuosus Walter Overton 1979-8-1 12306 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  HSC58336  Streptopus amplexifolius Overton, Butler 1979-8-2 12644 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC100891  Streptopus amplexifolius Carl C. Marshall May 1886 191 Humboldt Jacoby Cr. Comment
  UC666977  Streptopus amplexifolius var. americanus Joseph P. Tracy 1937-7-2 15411 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC1103497  Streptopus amplexifolius var. americanus Joseph P. Tracy 1940-8-25 16720 Humboldt near High Prairie; Bald Mountain 1066 Comment
  UC303040  Streptopus amplexifolius var. americanus Joseph P. Tracy 1926-5-22 7508 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  UC562304  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC269575  Symphoricarpos albus var. laevigatus Henry M. Pollard 1956-10-14 s.n. Humboldt Across Klamath River from Orleans Hotel Comment
  HSC32242  Symphoricarpos mollis J. O. Sawyer 1970-6-24 2236 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC48480  Symphoricarpos mollis Brad Klipfel 1974-9-7 569 Humboldt Horse Mtn. area, creek flowing into E Fork of Willow Creek. Comment
  UC602523  Symphoricarpos mollis Joseph P. Tracy 1936-8-8 15120 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1463 Comment
  HSC58804  Symphyotrichum bracteolatum G. L. Clifton, Griswold 1979-7-31 11705 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1222984  Symphyotrichum chilense Joseph P. Tracy 1950-10-7 19383 Humboldt e of, (on the Trinity Highway) Redwood Creek; Berry's Mountain 548 Comment
  UC581687  Symphyotrichum hendersonii Joseph P. Tracy 1937-8-12 15634 Humboldt Snow Camp 1402 Comment
  JEPS40780  Symphyotrichum subspicatum W. L. Jepson 1936-8-17 17913 Humboldt 2 mi s, near Still's ranch Field's Landing Comment
  JEPS26261  Synthyris reniformis Joseph P. Tracy 1926-2-28 7379 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  HSC78985  Tanacetum bipinnatum L. P. Janeway 1984-5-16 801 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 5 Comment
  SEINET3816603  Tanacetum bipinnatum J. P. Tracy 1901-8-7 1269 Humboldt Sand hills of ocean beach at Samoa, opp eureka Comment
  SEINET3816604  Tanacetum bipinnatum Bassett Maguire 1934-6-9 15318 Humboldt On sand dunes, clam beach, 15 miles from North Eureka Comment
  UCD150391  Tanacetum bipinnatum Harry A. George; G. M., B. M. 1967-7-11 s.n. Humboldt Humboldt Bay, South Spit. Comment
  CAS-BOT-BC376722  Tanacetum bipinnatum Paul F. Covel 1939-8-7 1636 Humboldt Beach at Little River Comment
  CHSC68541  Tanacetum camphoratum Vernon H. Oswald 1997-4-29 8357 Humboldt Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. On dunes along the road. 0 Comment
  CDA8893  Tanacetum camphoratum K. Neander, Gordon Leppig, Sylvia Leppig 1998-5-25 789 Humboldt Big Lagoon State Park, between ocean and Big Lagoon. Comment
  RSA121874  Tanacetum camphoratum H. S. Yates 1936-6-16 5651 Humboldt 0.5 mile SW of Samoa. 6 Comment
  UC1409185  Tanacetum camphoratum Robert F. Thorne and P. Everett 1965-8-7 35224 Humboldt Somoa Peninsula 3 Comment
  UC581790  Tanacetum vulgare Joseph P. Tracy 1929-10-1 8675 Humboldt Eureka 15 Comment
  HSC89474  Taraxacum officinale P. A. Daly 1986-3-12 91 Humboldt Trinidad Head, along trail 61 Comment
  RSA167403  Taraxacum officinale Joseph P. Tracy 1948-5-15 s.n. Humboldt Trinity River at Willow creek Comment
  HSC92008  Taxus brevifolia M. C. Hartman 1963-3-30 8 Humboldt Hwy. 299 1.0 mi. E of Berry Summit Comment
  UC667096  Tellima grandiflora Joseph P. Tracy 1935-7-23 14163 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC447406  Tellima grandiflora Kenneth Clark 1980-3-23 536 Humboldt Point Delgada; Alluvial terrace of south fork Dead Man's Gulch; Vascular Plants of Shelter Cove Comment
  HSC20422  Tellima grandiflora D. A. Shally 1965-5-15 47 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  JEPS49696  Tellima grandiflora Milo S. Baker 1923-7-20 Humboldt near South Yager Creek (Redwood House Road) Comment
  RSA120721  Tellima grandiflora S. S. Tillett 1956-7-5 604 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  RSA167423  Thalictrum polycarpum Joseph P. Tracy 1950-7-25 18879 Humboldt Humboldt County: Burr Valley, NW slope of Buck Mtn, alt 3500ft 1067 Comment
  UC1239774  Thelypteris nevadensis Joseph P. Tracy 1935-7-22 14124 Humboldt near Forks of Tish Tang-a Tang Creek Trinity Summit 1219 Comment
  SEINET200821  Thermopsis rhombifolia J. P. Tracy 1929-7-4 8612 Humboldt French Camp Ridge. 1067 Comment
  UC1222645  Thlaspi californicum Joseph P. Tracy 1951-5-20 19405 Humboldt at serpentine rockpile toward Ashfield Butte Kneeland Prairie; , toward Ashfield Butte 762 Comment
  CAS-BOT-BC81316  Thuja plicata Doris K. Kildale 1926-11-13 2850 Humboldt Eureka 21 Comment
  UC484081  Thuja plicata Carl B. Wolf 1930-10-25 1764 Humboldt 9 m above Blue Lake (along road to Willow Creek (Lord Ellis Road)) 243 Comment
  UC534994  Thuja plicata H. E. Parks 1932-7-25 0 -1139 Humboldt Camp 21 Hammond Lumber Company Trinidad (Trinidad, in bogs) 152 Comment
  CAS-BOT-BC88318  Thysanocarpus curvipes Doris K. Kildale 1926-4-25 1803 Humboldt Willow Creek Flat. 152 Comment
  HSC6995  Thysanocarpus curvipes E. C. Murczek 1964-4-4 27 Humboldt 8 mi. N of Hoopa Comment
  UC303041  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1926-6-27 7664 Humboldt Horse Mountain 1463 Comment
  UC402457  Tolmiea diplomenziesii P. E. Goddard 1901-7-6 25 Humboldt Hupa Comment
  HSC20439  Tolmiea diplomenziesii F. B. Plett 1963-5-15 47 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  UC11947  Tolmiea diplomenziesii W. C. Blasdale Jun 1899 5887 Humboldt Weitchpec North Coast Ranges, Klamath River (on the Klamath River, opposite the mouth of the Trinity) Comment
  UC585612  Torilis arvensis Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch) 304 Comment
  HSC45069  Torilis arvensis R. Sutherland 1978-5-16 7 .16578 Humboldt 155 Comment
  UC249611  Torilis nodosa Joseph P. Tracy 1922-6-18 6092 Humboldt North Yager Creek 762 Comment
  HSC3140  Toxicodendron diversilobum R. E. Thill 1965-5-1 26 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. Comment
  HSC62837  Toxicodendron diversilobum M. Dean Griswold 1979-5-29 85 Humboldt In front of Masonic lodge on Bayside Rd. Comment
  UCD116958  Toxicodendron diversilobum Linda M. Barker 1976-9-3 1697 Humboldt 3 miles west of Arcata. Comment
  HSC58100  Triantha occidentalis subsp. occidentalis G. L. Clifton, Griswold 1979-8-1 12030 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CAS-BOT-BC517422  Triantha occidentalis subsp. occidentalis L. B. Kildale 1930-8-10 10528 Humboldt Snow Camp, head of Redwood Creek Comment
  SEINET12350141  Trichostema lanceolatum E. A. York 1990-1 2703 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC70386  Trientalis latifolia M. A. Baker 1980-6-7 1859 Humboldt Near Ammon Creek 732 Comment
  SBBG5617  Trientalis latifolia H. and M. Dearing 1933-5-16 1292 Humboldt Weott Comment
  RSA46837  Trientalis latifolia Doris K. Kildale 1926-6-6 s.n. Humboldt quik as Davidsons Comment
  UC1197496  Trifolium barbigerum J. P. Tracy 1901-5-16 1092 Humboldt immediate vicinity Eureka 0 Comment
  UC1223511  Trifolium barbigerum J. P. Tracy 1942-5-16 17332 Humboldt vicinity Garberville 152 Comment
  UC16425  Trifolium barbigerum J. Burtt Davy 1899-6-17 5603 Humboldt Arcata Comment
  UC495698  Trifolium barbigerum Joseph P. Tracy 1927-5-14 8028 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1223501  Trifolium bifidum var. decipiens Joseph P. Tracy 1950-6-8 18744 Humboldt 1 mi e Cape Mendocino (Cape Ridge, roadside near top of ridge) 152 Comment
  HSC73960  Trifolium dichotomum Gail Newton 1980-6-7 128 Humboldt Near Brush Mtn. 1128 Comment
  POM301285  Trifolium dichotomum Joseph P. Tracy 1942-5-16 11555 Humboldt Vicinity of Garberville. 152 Comment
  HSC45172  Trifolium dichotomum R. Sutherland 1978-4-23 32 .23478 Humboldt Kinsey Ridge 640 Comment
  HSC39836  Trifolium dubium Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  UCD108818  Trifolium dubium Linda M. Barker 1976-5-13 1476 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD108864  Trifolium dubium A. H. Murphy 1947-4-25 s.n. Humboldt 2 miles N of Blocksburg, W. Smith Ranch. Comment
  HSC71067  Trifolium fucatum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3400 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  UC1197034  Trifolium fucatum H. E. Parks and Joseph P. Tracy 1930-5-25 8722 Humboldt near Bridgeville; Northern Coast Ranges 228 Comment
  HSC15123  Trifolium fucatum R. A. Rasp 1964-5-17 38 Humboldt 1 mi. S of Arcata beside Hwy. 101 Comment
  HSC15124  Trifolium fucatum Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  UC1223456  Trifolium fucatum Joseph P. Tracy 1950-6-8 18748 Humboldt 1 mi e Cape Mendocino; Cape Ridge 152 Comment
  UC303192  Trifolium fucatum Joseph P. Tracy 1923-5-13 6203 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  HSC15183  Trifolium gracilentum Norman H. Moe 1962-5-19 Humboldt Lanphere's Place Comment
  HSC45170  Trifolium hirtum R. Sutherland 1978-5-16 9 .16578 Humboldt 402 Comment
  UC175675  Trifolium longipes subsp. hansenii Joseph P. Tracy 1913-6-17 4157 Humboldt Northern Coast Ranges. Buck Mountain, near summit. Comment
  UC1223332  Trifolium longipes var. oreganum Joseph P. Tracy 1947-7-27 17836 Humboldt Horse Mtn Comment
  HSC71447  Trifolium microcephalum J. P. Smith, Advanced Plant Taxonomy Class 1971-10-9 5023 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC495695  Trifolium microcephalum Joseph P. Tracy 1932-5-1 9893 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  CDA28005  Trifolium microdon E. C. Whitney 1978-5-25 Humboldt Art Tooby property, Harris. 0 Comment
  UC16635  Trifolium microdon Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mtn Comment
  HSC15223  Trifolium obtusiflorum J. E. Lankila 1962-5-6 15 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  UC1541586  Trifolium pratense W. K. Parks July 1932 Humboldt near Trinidad (fields) Comment
  UC165581  Trifolium repens Harley P. Chandler May, 1902 1092 Humboldt Scotia North Coast Ranges 60 Comment
  HSC34617  Trifolium subterraneum David Ferranti 1974-5-6 Humboldt Garden weed at 43601/2 Union St. Eureka Comment
  UC1223533  Trifolium variegatum var. melananthum Joseph P. Tracy 1950-6-18 18845 Humboldt s Cape Mendocino (Davis Creek, on the beach) Comment
  UC1223543  Trifolium variegatum var. pauciflorum Joseph P. Tracy 1933-5-20 12241 Humboldt Petrolia Northern Coast Ranges, Mattole Valley Comment
  UC16775  Trifolium variegatum var. variegatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 D Humboldt Hoopa Valley Comment
  RSA195477  Trifolium variegatum var. variegatum C. R. Gunn 1963-6-3 2701 Humboldt 1/2 mile south of Korbel Comment
  UC1197510  Trifolium willdenovii Joseph P. Tracy 1922-4-30 6033 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC165539  Trifolium willdenovii Harley P. Chandler June 1901 1450 Humboldt Klamath River North Coast Ranges 304 Comment
  UC1197520  Trifolium willdenovii Joseph P. Tracy 1911-6-25 3261 Humboldt Bucksport Northern Coast Ranges 0 Comment
  HSC15196  Trifolium wormskioldii J. W. Bosworth 1965-5-14 50 Humboldt 1 mi. N of Fairhaven Comment
  JEPS37725  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Northern Coast Ranges, Little River Beach Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  UC162835  Trifolium wormskioldii J. P. Tracy 1900-5-24 802 Humboldt Eureka vicinity Comment
  UC1130595  Triglochin maritima H. S. Yates 1936-6-23 5860 Humboldt 1 mi w Bayside; Eureka Quadrangle Comment
  HSC101813  Trillium albidum Kjirsten A. Wayman 2012-5-4 316 Humboldt Bald Hills Road, 16.6 mi. from Hwy 101, N 41.15213 deg. W 123.88952 deg. 768 Comment
  CAS-BOT-BC519078  Trillium angustipetalum Doris K. Kildale 1926-3-27 1659 Humboldt Wiregrass Prairie in Bald Hills Comment
  CAS-BOT-BC133391  Trillium ovatum Alice Eastwood; John Thomas Howell 1934-4-11 1330 Humboldt Patrick's Point Comment
  UCR275118  Trillium ovatum Charity A. Hartshorn 2016-5-14 28 Humboldt Arcata Community Forest 244 Comment
  POM290755  Trillium ovatum Lyman Benson 1928-7-8 391 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  UCD139909  Trillium ovatum Roman Gankin 1956-3-17 105 Humboldt south boundary of Jensen Grove, off U.S. Highway 101. Comment
  RSA298972  Triodanis biflora Lincoln Constance 1934-6-4 818 Humboldt Look Prairie, and Bull Creek road, to Dyerville, South Fork Eel River. Comment
  UC34823  Triodanis perfoliata Harley P. Chandler June, 1901 1514 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  SEINET3821241 Image available Triodanis perfoliata Joseph P. Tracy 1908-7-1 2912 Humboldt Ridge between Van Duzen and Mad Rivers Comment
  HSC20852  Triphysaria eriantha subsp. eriantha S. J. Hawks 1965-5-14 56 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  UC951233  Triphysaria eriantha subsp. eriantha S. K. Harris 1942-6-10 1474 Humboldt Prairies Bear River Ridge Bear River Ridge; , Prairies 457 Comment
  CHSC40207  Triphysaria pusilla L. P. Janeway 1984-5-13 772 Humboldt Along the Kneeland/ Bridgeville Road ca 11 mi east of the Kneeland post office. 566 Comment
  UC702568  Triphysaria pusilla C. C. and S. K. Harris 1942-6-18 1283 Humboldt 1 mi n and 3 mi w Chalk Mountain; n and w of Chalk Mountain 665 Comment
  HSC20866  Triphysaria versicolor subsp. faucibarbata Francis Winter 1960-5-6 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  UC1222439  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1942-5-29 17089 Humboldt Eureka 6 Comment
  UC526695  Trisetum canescens Joseph P. Tracy 1927-6-19 8194 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  HSC13410  Trisetum canescens D. C. Juve 1964-5-16 45 Humboldt 1 mi. N of Tish-tang Ranger Station on Hwy. 96. Comment
  SEINET10605778  Trisetum canescens Joseph P. Tracy 1901-5-30 Tracy 1109 Humboldt At Eureka. Comment
  SEINET244120 Image available Trisetum cernuum Joseph P. Tracy 1918-4-21 4881 Humboldt Openings in moist woods 'Newell's Camp' on old Kneeland Prairie Road. 305 Comment
  UCD93903  Trisetum cernuum P. B. Kennedy 1923-8-3 s.n. Humboldt South of Scotia. By road through red woods off highway. Comment
  UCD93904  Trisetum cernuum A. H. Murphy 1947-8-5 s.n. Humboldt Bald Hills, 7-8 miles SE of Orick. Comment
  UC1197711  Triteleia hyacinthina Joseph P. Tracy 1935-5-25 13869 Humboldt Fort Seward 106 Comment
  HSC3038  Triteleia hyacinthina D. E. Anderson 1962-7-14 2259 Humboldt Along Barry Ridge Rd. Comment
  JEPS559  Triteleia hyacinthina Joseph P. Tracy 1937-7-19 15451 Humboldt nw slope Buck Mountain (lower foothills) 762 Comment
  UC15025  Triteleia hyacinthina J. P. Tracy 1901-6-23 1160 Humboldt wet ground near Ryan's Slough Hill; immediate vicinity of Eureka 0 Comment
  HSC91592  Triteleia laxa E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, near Ceremonial Rock Comment
  HSC3050  Triteleia laxa William J. Ferlatte, B. D. Rogers 1966-6-8 2086 Humboldt Forest Glen Campground. Comment
  UC1197721  Triteleia laxa J. P. Tracy 1906-6-24 2504 Humboldt s slope of hill near Fields Landing; Humboldt Hill 30 Comment
  CAS-BOT-BC85900  Tsuga heterophylla Doris K. Kildale 1926-3-25 1629 Humboldt Liscom Hill, Mad River near Essex 30 Comment
  JEPS46766  Tsuga mertensiana W. L. Jepson 1903-6-1 Humboldt 12 mi from Ft. Bragg (Noyo River); Noyo River Comment
  HSC94100  Ulex europaeus D. M. Hull 1986-2-26 48 Humboldt Corner of Beverly Way and Chapman Ave. Arcata, CA Comment
Read comments
Jan 13 2012
  UC1222167  Umbellularia californica Joseph P. Tracy 1950-12-10 18600 Humboldt vicinity of Carlotta 30 Comment
  UC203898  Umbellularia californica Joseph P. Tracy 1918-9-29 5101 Humboldt South Fork Eel River, 8 mi above the mouth, Myers Ranch South Fork Eel River; Northern Coast Ranges, , Myers Ranch 60 Comment
  UC249701  Umbellularia californica Joseph P. Tracy 1921-2-27 5415 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC40006  Urtica dioica subsp. gracilis Linda M. Barker 1976-9-3 1696 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC21678  Urtica dioica subsp. gracilis Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  HSC59491  Utricularia macrorhiza M. A. Ericksen 1979-4-24 217 Humboldt Behind Fieldbrook School, in Fieldbrook Comment
  UC22192  Vaccinium cespitosum J. P. Tracy 1899-3 Humboldt Eureka Comment
  CHSC67763  Vaccinium ovatum Vernon H. Oswald 1997-2-12 8307 Humboldt North Coast of Calif. South end of Trinidad State Beach, town of Trinidad. 30 Comment
  HSC79432  Vaccinium ovatum Kenneth Clark 1981-4-5 1301 Humboldt Above S fork Dead Man's Gulch 114 Comment
  HSC91895  Vaccinium ovatum E. Mackey 1986-10-7 Humboldt Patricks Point State Park, Palmer's Point Rd. Comment
  JEPS66687  Vaccinium ovatum Lincoln Constance 1934-5-31 758 Humboldt from w boundary of Park to Grasshopper Peak (Squaw Creek) rd. (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  UC1197776  Vaccinium ovatum Joseph P. Tracy 1925-12-20 7333 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UCD166888  Vaccinium ovatum Colleen Rossier 2016-9-16 6 Humboldt In vicinity of Bark Shanty Road, plot Bark Shanty #2. 427 Comment
  CAS-BOT-BC199406  Vaccinium parvifolium Clarence R. Quick 1959-7-24 59 -35 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  CAS-BOT-BC199414  Vaccinium parvifolium Volney Rattan 1879-6-1 s.n. Humboldt Unspecified Comment
  CHSC27318  Vaccinium parvifolium T. B. Devine 1977-8-20 459 Humboldt Near Kneeland Road ca 1 mi from Kneeland towards Eureka. 548 Comment
  POM131975  Vaccinium parvifolium Joseph P. Tracy 1918-4-21 4879 Humboldt Near Newells old camp, Kneeland Prairie Road. Comment
  HSC97564  Valeriana californica Cara Witte 2007-6-1 169 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1417 Comment
  HSC102134  Valeriana sitchensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1038 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC81827  Valeriana sitchensis subsp. sitchensis Thomas W. Nelson 1979-7-11 5027 Humboldt Along trail from Grogan's Hole to North Trinity Mtn., from Grogan's Hole to summit. Comment
  UC1196349  Vancouveria hexandra J. P. Tracy 1901-6-10 1124 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC96678  Vancouveria hexandra Kristina Folland 2001-5-6 22 Humboldt Top of Fickle Hill Rd. Comment
  CAS-BOT-BC76090  Vancouveria planipetala Peter H. Raven; R. Snow 1958-7-20 13631 Humboldt Friday Ridge Road to Grouse Mountain, 10.8 miles southwest of junction with United States Highway 299. Comment
  HSC72636  Vancouveria planipetala J. P. Smith 1977-7-3 9247 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  JEPS33028  Vancouveria planipetala W. L. Jepson 1934-5-7 16695 Humboldt Bull Creek Comment
  CAS-BOT-BC528851  Veratrum californicum Joseph P. Tracy 1934-6-21 13244 Humboldt Local in wet place at Still Ranch 2 mi. S of Fields Landing (exterminated there about 1937) 6 Comment
  UC1173645  Veratrum insolitum Joseph P. Tracy 1929-7-4 8636 Humboldt French Camp Ridge 1066 Comment
  HSC21740  Verbena lasiostachys var. lasiostachys Paul Shields Aug 1955 Humboldt 5 mi. N of Meyers Flat. Comment
  HSC99072  Veronica peregrina subsp. xalapensis Cara Witte 2007-6-21 331 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  UC147877  Veronica scutellata J. P. Tracy 1901-6-30 1196 Humboldt immediate vicinity of Eureka 0 Comment
  HSC73728  Veronica wormskjoldii M. A. Baker 1980-7-22 3098 Humboldt Near Grogan Hole. 1676 Comment
  HSC99443  Vicia americana subsp. americana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 93 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1197479  Vicia americana var. americana Joseph P. Tracy 1936-3-29 14786 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  UC71810  Vicia americana var. americana Mrs. M. H. Manning May 1903 133 Humboldt Fort Bidwell Comment
  HSC100542  Vicia americana var. truncata Carl C. Marshall Apr 1884 47 Humboldt Thickets and roadsides throughout Humboldt Bay. Comment
  HSC89497  Vicia gigantea P. A. Daly 1984-5-8 3 Humboldt Trinidad Head 61 Comment
  UCD108677  Vicia hirsuta P. B. Kennedy 1929-6-12 s.n. Humboldt Eureka. Comment
  SEINET5078517  Vicia sativa Unknown 2002-8-22 89 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  CAS-BOT-BC263950  Viola adunca L. B. Kildale 1927-7-10 3723 Humboldt Gans Prairie, N Bald Hills Road 609 Comment
  RSA46778  Viola adunca Doris Kildale Gillespie 1937-8-26 15342 Humboldt Christmas Prairie. Comment
  UC1762356  Viola adunca Milo S. Baker 1926-4 5432 Humboldt Carlotta Comment
  RSA168949  Viola cuneata Joseph P. Tracy 1950-7-1 18946 Humboldt Summit near Clear Lake. Grouse Mountain. 1524 Comment
  UC1761601  Viola glabella H. E. Parks 1924-8-9 2447 Humboldt Carlotta Comment
  UC502964  Viola glabella Joseph P. Tracy 1927-6-12 8153 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1219 Comment
  JEPS80007  Viola hallii Joseph P. Tracy 1927-6-12 8125 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  POM126626  Viola hallii P. E. Goddard 1906-06 667 Humboldt Lasseck Pk. Comment
  HSC96539  Viola macloskeyi Gordon Leppig 1998-5-11 761 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  HSC103112  Viola macloskeyi M. Mesler 2010-7-15 835 Humboldt Near Blake Mtn, FS rd N01 off rd 4N12 Comment
  HSC34953  Viola ocellata Thomas W. Nelson 1975-5-24 1867 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SEINET200806 Image available Viola ocellata J. P. Tracy 1922-4-30 6034 Humboldt Tinity River Valley near Willow Creek 500 Comment
  CHSC96699  Viola palustris Gordon Leppig 1998-5-11 761 Humboldt Big Lagoon County Park, Big Lagoon Bog. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
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Oct 11 2009
  HSC48776  Viola palustris Brad Klipfel 1974-4-27 341 Humboldt Along the SW side of Big Lagoon Comment
  BLMAR574  Viola praemorsa Jennifer Wheeler 2010-5-12 574 Humboldt Lacks Creek, Faulkner prairie 731 Comment
  UC66207  Viola praemorsa subsp. praemorsa Harley P. Chandler may, 1901 1085 Humboldt Harris; Northern Coast Ranges, Harris 609 Comment
  HSC70254  Viola purpurea subsp. quercetorum M. A. Baker 1980-6-8 1921 Humboldt Near Buck Flat. 1554 Comment
  UC183743  Viola purpurea subsp. quercetorum Joseph P. Tracy 1913-6-17 4149 Humboldt on nw slope of Buck Mountain (Burr Balley); Northern Coast Ranges, Burr Valley, Buck Mountain 1066 Comment
  UC963849  Viola sempervirens H. E. and S. T. Parks April, 1944 24268 Humboldt Spruce Cove; North Coast Ranges, Trinidad, Spruce Cove 60 Comment
  JEPS50235  Viola sempervirens Lincoln Constance 1934-5-31 760 Humboldt Bull Creek Flat along Bull Creek (from w boundary of Park to Grasshopper Peak (Squaw Creek)road, n side of creek); Bull Creek Region, South Fork Eel River Comment
  RSA12554  Viola sempervirens Carl B. Wolf 1934-7-2 5885 Humboldt Snow Camp. Mountains east of Korbel. 1372 Comment
  UC183557  Viola sempervirens Joseph P. Tracy 1913-6-20 4221 Humboldt in valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC1762495  Viola sheltonii Milo S. Baker 1946-6-14 11491 Humboldt South Fork Mtn. 1524 Comment
  CAS-BOT-BC199803  Vulpia L. R. Abrams 1926-7-11 6050 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  UC212888  Vulpia bromoides Joseph P. Tracy 1919-4-27 5132 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  UC1145192  Vulpia microstachys var. pauciflora Joseph P. Tracy 1942-6-23 17224 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC180481  Vulpia microstachys var. pauciflora Joseph P. Tracy 1914-5-14 4463 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  HSC9924  Vulpia myuros Yarick 1960-8-3 Humboldt K & K. 7 mi, Krueger Cr. Comment
  CAS-BOT-BC184732  Vulpia myuros subsp. megalura Doris K. Kildale 1929-5-26 9131 Humboldt Klamath River at Orleans 152 Comment
  UC180482  Vulpia myuros var. myuros Joseph P. Tracy 1914-5-14 4432 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  CHSC68557  Whipplea modesta Vernon H. Oswald 1997-4-29 8356 Humboldt Humboldt Bay NWR, Hookton Slough Trail on the levee along the south side of Hookton Slough. On the edge of the trail. 0 Comment
  HSC97495  Whipplea modesta Cara Witte 2007-5-29 133 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  UCR32168  Whipplea modesta David J. Keil 1983-7-2 17322 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  JEPS60110  Woodwardia fimbriata Lincoln Constance 1934-6-2 784 Humboldt S Fork Eel River; Bull Creek Region Comment
  UCD136104  Woodwardia fimbriata K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  CAS-BOT-BC382931  Wyethia angustifolia Doris K. Kildale 1926-5-2 1897 Humboldt Willow Creek Flat 152 Comment
  HSC63840  Wyethia angustifolia M. A. Baker 1979-6-26 908 Humboldt S facing ridge Comment
  UC169292  Wyethia angustifolia Joseph P. Tracy 1912-6-9 3657 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UCD137004  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. At Ammon Ridge Rd. 1524 Comment
  UC1199227  Xanthium strumarium Joseph P. Tracy 1921-12-11 5982 Humboldt Alton Northern Coast Ranges, Eel River 30 Comment
  HSC56947  Xerophyllum tenax Overton, Butler 1979-7-23 9437 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC73049  Xerophyllum tenax M. A. Baker 1980-7-11 2775 Humboldt Near Red Mtn. 1341 Comment
  UC1134688  Xerophyllum tenax A. E. Wieslander 1931-5-19 208 Humboldt near Orleans (Klamath National Forest); Klamath National Forest Comment
  UC154243  Yabea microcarpa Joseph P. Tracy 1908-6-9 2647 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC154244  Yabea microcarpa Joseph P. Tracy 1908-6 2743 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  HSC13443  Zizania palustris var. interior Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  UC159987  Zostera marina R. W. Skinner Oct 1910 Humboldt Eureka Comment



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