Search Results — 2000 specimen records retrieved (1405 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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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  BLMAR207  Abies concolor Jennifer Anthony-Wheeler 1996-7-9 207 Humboldt Pilot ridge., growing as component of conifer mxed hardwood forest ar elevation range 1280 Comment
Read comments
Nov 1 2013
  HSC54516  Abies concolor Overton, Butler 1979-7-23 9432 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC71112  Abies concolor M. A. Baker 1980-5-23 1386 Humboldt Near Buck Mtn. 1524 Comment
  NY29281  Abies grandis J. P. Tracy 1932-3-20 9781 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SD136394  Abies grandis Doris Kildale Niles 1941-7-25 Humboldt Arcata Comment
  HSC37569  Abronia latifolia J. D. Ackerman 1975-6-10 456 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  CDA40632  Acaena novae-zelandiae E. C. Whitney 1966-7-28 s.n. Humboldt Mather prop., Simpson Lumber Co., Fieldbrook. 0 Comment
  CDA40639  Acaena novae-zelandiae G. S. Lester 1973-11-8 55 Humboldt Anchor Tree Farm, east of McKinleyville, near Fieldbrook. Comment
  HSC100371  Acaena novae-zelandiae J. McRae 2010-6-18 Humboldt McKinleyville, USFS Humboldt Nursery. Comment
  CAS-BOT-BC330549  Acer circinatum Harley P. Chandler 1901-6-1 1283 Humboldt North Coast Ranges. Hupa Indian Reservation 1097 Comment
  HSC58053  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-8-1 11919 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC331589  Acer macrophyllum Doris K. Kildale 1927-5-1 3117 Humboldt Blocksburg 518 Comment
  HSC58134  Achillea millefolium Muth 1979-8-1 12141 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC67891  Achillea millefolium J. P. Smith 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET11854568  Achillea millefolium J. P. Tracy 1947-1 17764 Humboldt Mouth of Little River Comment
  UC1225749  Achlys californica Joseph P. Tracy 1946-6-23 17594 Humboldt Kneeland Prairie 762 Comment
  HSC56973  Achlys triphylla Overton, Butler 1979-7-23 9506 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  CAS-BOT-BC400019  Achlys triphylla Doris K. Kildale 1926-4-30 1923 Humboldt Camp Grant, South Fork of Eel River Comment
  SEINET260372 Image available Achnatherum lemmonii R. Spellenberg 1990-7-10 10248 Humboldt E edge county 8 mi WSW of Salyer 6 mi S of Berry Summit on CA Hwy 299; USFS 1372 Comment
  UC526756  Achnatherum lemmonii Joseph P. Tracy 1933-7-25 12849 Humboldt Grouse Mountain 1524 Comment
  UCD50697  Achnatherum lemmonii A. H. Murphy 1947-6-25 s.n. Humboldt Lassic Peak Road, northeast of Blockburg. Humboldt County, California. Comment
  RSA10033  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-17 10667 Humboldt Trinity Summit, Ridges east of Corral Prairie 1829 Comment
  BLMAR183  Acmispon brachycarpus Donald Hazlett 1994-6-7 183 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC56019  Aconitum columbianum subsp. columbianum Gilbert Muth 1979-7-31 11519 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  CAS-BOT-BC391410  Aconitum columbianum subsp. columbianum Joseph P. Tracy 1932-7-10 10393 Humboldt Klamath Mountains, Trinity Summit. Meadow at Corral Prairie 1524 Comment
  HSC56084  Actaea rubra G. L. Clifton, Griswold 1979-7-31 11772 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  JEPS60374  Actaea rubra W. L. Jepson 1902-7-16 2055 Humboldt Trinity Summit 2133 Comment
  CAS-BOT-BC391594  Actaea spicata var. arguta Carl B. Wolf 1937-8-11 9148 Humboldt North Coast Range, Van Duzen River, 2 7/10 mi. W. of Dinsmores 457 Comment
  HSC48841  Adenocaulon bicolor Brad Klipfel 1973-7-15 197 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC73574  Adenocaulon bicolor Gail Newton 1980-7-14 1511 Humboldt Near Deadman Ridge 1097 Comment
  SD73189  Adenocaulon bicolor Darley F. Howe 1969-6-4 Humboldt 14.6 miles east of Alton on #36 89 Comment
  UC582523  Adenocaulon bicolor Joseph P. Tracy 1932-7-17 10650 Humboldt fir woods near Corral Prairie; Trinity Summit 1584 Comment
  UC76581  Adenocaulon bicolor Mrs. M. H. Manning 1901-1-1 Humboldt near Hupa Comment
  HSC100385  Adiantum pedatum Carl C. Marshall Jun 1885 111 Humboldt Damp woods. Comment
  RSA178539  Aesculus californica Joseph P. Tracy 1950-6-21 18856 Humboldt Trinity River Valley, near the South Fork: At mouth of South Fork, on west side. 183 Comment
  UC249587  Aesculus californica Joseph P. Tracy 1921-10-22 5978 Humboldt Bridgeville; Northern Coast Ranges 304 Comment
  UC668172  Aesculus californica Joseph P. Tracy 1937-6-20 15357 Humboldt 10 mi upstream from the mouth Bear River 152 Comment
  SDSU6850  Agoseris apargioides subsp. maritima D. F. Howe 1965-8-7 4121 Humboldt Orick. Comment
  UC205184  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1920-7-4 5341 Humboldt on bluffs facing the ocean Little River Beach; Northern Coast Ranges 15 Comment
  UC1222932  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-8-7 18446 Humboldt Box Camp, in meadow Trinity Summit 1463 Comment
  UC582756  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1935-7-25 14234 Humboldt McKay Prairie Trinity Summit, McKay Prairie 1584 Comment
  JEPS79803  Agoseris heterophylla Joseph P. Tracy 1933-5-30 12417 Humboldt (near Garberville) Redway 152 Comment
  UC1199484  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1927-5-14 8030 C Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC1239509  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 1/2 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  UC450003  Agoseris hirsuta Joseph P. Tracy 1923-6-20 6316 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  HSC40827  Agoseris retrorsa Thomas W. Nelson, James Nelson 1976-7-26 3042 Humboldt Along ridge NE of Mt. Lassic (Signal Peak) 1707 Comment
  HSC98818  Agrostis capillaris Cara Witte 2007-7-25 575 Humboldt Waterhole off FS Road 5N10. 2 mi E of intersection with National Forest 1. 1369 Comment
  RSA44465  Agrostis densiflora Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  CAS-BOT-BC127299  Agrostis exarata Joseph P. Tracy 1932-7-14 10550 Humboldt Klamath Mountains. Wet Meadow at Corral Prairie. 1524 Comment
  HSC76568  Agrostis exarata Teresa Prendusi 1981-7-24 495 Humboldt Near Whiteys Peak 1585 Comment
  POM126122  Agrostis exarata Joseph P. Tracy 1924-7-13 6731 Humboldt Big Lagoon 6 Comment
  POM160889  Agrostis exarata Joseph P. Tracy 1918-7-21 5085 Humboldt Around Humboldt Bay. Humboldt Hill 91 Comment
  RSA53834  Agrostis exarata Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  UC552714  Agrostis exarata Joseph P. Tracy 1935-7-21 14113 Humboldt at Willow Creek (in open field); Trinity River Valley 152 Comment
  SEINET11673856  Agrostis exarata P. H. Chandler 1901-1 1525 Humboldt Klamath River, North Coast Ranges 427 Comment
  HSC58751  Agrostis gigantea Overton, Butler 1979-7-24 9619 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  UC188851  Agrostis hallii Joseph Burtt Davy 1899-6-16 5564 Humboldt Alton Comment
  UC1103384  Agrostis microphylla J. P. Tracy 1900-7-22 898 1/2 Humboldt vicinity Eureka; vicinity Eureka 0 Comment
  HSC102189  Agrostis pallens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1103 Humboldt Andy's Camp 1564 Comment
  UC212862  Agrostis pallens Joseph P. Tracy 1919-9-18 5232 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  UC552753  Agrostis pallens Joseph P. Tracy 1934-7-13 13396 Humboldt in sedge swamp North Coast Ranges, Dows Prairie 60 Comment
  HSC37913  Agrostis stolonifera Peter Sorensen 1976-7-15 Humboldt Woodley Island Comment
  RSA54134  Agrostis stolonifera Henry M. Pollard 1986-8-22 s.n. Humboldt Roadside near Orleans Comment
  UC33728  Agrostis stolonifera Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6203 Humboldt Russ Ranch Comment
  UC1145072  Agrostis viridis Joseph P. Tracy 1938-8-14 16112 Humboldt along mining ditch near South Fork; Trinity River Valley 304 Comment
  HSC45216  Aira caryophyllea M. Alcasas 1978-6-3 117 Humboldt Titlow Hill Rd., 1.2 mi from Hwy. 299 1463 Comment
  HSC8862  Aira caryophyllea C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 1341 Humboldt Trinity River, near bridge on Trinity Highway 152 Comment
  UC1103300  Aira caryophyllea Joseph P. Tracy 1914-7-5 4553 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC726346  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt 10 mi s Dyerville; Humboldt Camp Comment
  UC922022  Aira caryophyllea Joseph P. Tracy 1941-6-15 16907 Humboldt e King's Peak; Wilder Ridge 762 Comment
  UCD55739  Aira caryophyllea A. A. Beetle; G. L. Stebbins 1942-6-3 3587 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
Read comments
Jan 21 2009
  CAS-BOT-BC138337  Aira caryophyllea var. caryophyllea W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula. Comment
  HSC90692  Aira praecox Gail Newton 1982-5-5 3558 Humboldt Elk River Wildlife Area, Eureka. Comment
  UCD55803  Aira praecox Joseph P. Tracy 1941-6-15 16906 Humboldt Wilder Ridge, east of Kings Peak. 762 Comment
  UC194898  Alisma plantago-aquatica Joseph P. Tracy 1916-6-19 4724 Humboldt Dobbyn Creek Northern Coast Ranges 182 Comment
  CAS-BOT-BC460751  Allium amplectens S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3401 Humboldt Crossing of Little Van Duzen River between Bridgeville and Dinsmore's. 710 Comment
  CAS-BOT-BC460753  Allium amplectens Volney Rattan 1903-1-1 s.n. Humboldt Kneeland Prairie Comment
  CAS-BOT-BC460755  Allium amplectens Alice Eastwood; John Thomas Howell 1937-6-23 4832 Humboldt Near Yager Comment
  HSC57873  Allium campanulatum Overton, Butler 1979-7-31 11409 Humboldt Near Water Dog Lakes 1830 Comment
  HSC73663  Allium campanulatum M. A. Baker 1980-7-15 2974 Humboldt Near Whiting Ridge. 1341 Comment
  SEINET3153890  Allium campanulatum N. Dennis 1965-6-19 132 Humboldt about 1/4 mi S and 1 mi E of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 mi SE of Kneeland 792 Comment
  HSC77956  Allium falcifolium D. K. Imper 1982-7-13 1489 Humboldt Near Chaparral Mtn. 1386 Comment
  UCR39798  Allium falcifolium D. K. Imper 1982-7-1 s.n. Humboldt Six Rivers National Forest. Lassics Lookout & road to Pine Mtn. 1524 Comment
  CAS-BOT-BC135846  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5417 Humboldt Along road to Red Mountain 0.5 miles west of junction with Swayback Ridge Road - Six Rivers National Forest 1371 Comment
  HSC67192  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-6-10 5417 Humboldt Along rd. to Red Mtn. 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  HSC71842  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5947 Humboldt Along low ridge NE of small vernal pond at N base of Red Lassic 1677 Comment
  UC202013  Allium unifolium Joseph P. Tracy 1918-7-5 5004 Humboldt banks along Mattole River Northern Coast Ranges, White Thorn Valley, Mattole River 304 Comment
  RSA20861  Allium unifolium Carl B. Wolf 1937-8-11 8900 Humboldt Fleener Creek, 0.5 mile south of Centerville. 46 Comment
  HSC41327  Allotropa virgata Brad W. Klipfel 1974-8-2 513 Humboldt Horse Mtn. Comment
  UC503097  Alnus rhombifolia Joseph P. Tracy 1930-8-3 9143 Humboldt Dinsmore's Ranch Northern Coast Ranges, Van Duzen River (on river opposite Buck Mt.) 670 Comment
  UC54758  Alnus rhombifolia Mrs. Manning Humboldt Hupa Valley Comment
  POM106497  Alnus rubra Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1145046  Alopecurus aequalis Joseph P. Tracy 1950-7-6 19019 Humboldt 3 mi. s. Burr Valley (Buck Mt., high meadow w. side,); Buck Mt. 1158 Comment
  RSA129283  Alopecurus geniculatus H. L. Person 1932-5-11 19411 Humboldt Near Arcata 0 Comment
  UC132197  Amaranthus albus Joseph P. Tracy 1907-8-20 2598 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC35864  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2130 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  HSC102083  Amelanchier alnifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 987 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SEINET7296676 Image available Ammophila arenaria Richard W. Pohl 1987-1 15639 Humboldt Eureka; Beach and salt marsh 2 Comment
  HSC57007  Anaphalis margaritacea Overton, Butler 1979-7-24 9594 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  CAS-BOT-BC45133  Anaphalis margaritacea Carl B. Wolf 1937-8-13 9212 Humboldt 9 miles NE of Blue Lake on Lord Ellis Road 243 Comment
  CAS-BOT-BC391781  Anemone deltoidea V. Rattan 1882-6-1 s.n. Humboldt To Kneeland Prairie Comment
  CAS-BOT-BC391785  Anemone deltoidea Mrs. H. C. Cantelow 1936-5-17 s.n. Humboldt 4 1/2 miles east of Orick Comment
  HSC56303  Anemone deltoidea Overton, Butler 1979-8-2 12610 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC391783  Anemone deltoidea W. R. Dudley 1899-6-19 s.n. Humboldt Scotia--Shady Run. Comment
  JEPS60508  Anemone deltoidea W. L. Jepson 1902-7-15 2029 Humboldt between Mud Spring and Trinity Summit Trinity Summit 1828 Comment
  SD81298  Anemone deltoidea Darley F. Howe 1970-5-30 4060 Humboldt Forest east of Orick 395 Comment
  UC1196195  Anemone oregana Joseph P. Tracy 1933-7-11 12679 Humboldt Horse Mtn 1524 Comment
  HSC33062  Anemone oregana var. oregana Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1250 Humboldt Horse Mtn. area, W of microwave tower 1220 Comment
  UC1197378  Angelica genuflexa Joseph P. Tracy 1940-9-26 16733 Humboldt 2 mi s of Fields Landing (Near Still Ranch) 6 Comment
  UC585998  Angelica genuflexa Joseph P. Tracy 1927-9-25 8380 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  UC183670  Angelica hendersonii Joseph P. Tracy 1912-7-21 3764 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC183691  Angelica hendersonii Joseph P. Tracy 1912-7-21 3764 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UCD127224  Angelica hendersonii Joseph DiTomaso 1980-6-29 1636 Humboldt south side of Elkshead. 2 miles north of Trinidad. Comment
  UC153950  Angelica lucida Joseph P. Tracy 1910-6-5 3153 Humboldt Region about Humboldt Bay (near Samoa, Northern Coast Region); Northern Coast Region 0 Comment
  CAS-BOT-BC271492  Anisocarpus madioides Doris K. Kildale 1928-5-19 5118 Humboldt Chalk Mountain Comment
  CAS-BOT-BC94796  Anisocarpus madioides R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 835 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air mi. N of Mattole Road & 3 air mi. W of Hwy 101. 243 Comment
  UC127608  Anisocarpus madioides Mrs. M. H. Manning June 1902 Humboldt Hupa Comment
  HSC56940  Antennaria suffrutescens Overton, Butler 1979-7-23 9419 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  JEPS13179  Antennaria suffrutescens Joseph P. Tracy 1926-6-20 7626 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  RSA167202  Antennaria suffrutescens Joseph P. Tracy 1947-7-9 17864 Humboldt Horse Mountain 1432 Comment
  SEINET11853677  Antennaria suffrutescens J. P. Tracy 1947-1 17864 Humboldt Horse Mountain 1433 Comment
  HSC103785  Anthemis cotula M. Mesler, K. A. Wayman 2015-8-4 1646 Humboldt Trail between Mill Creek Lakes trail head and Andy's Camp 1633 Comment
  UCD56135  Anthoxanthum aristatum W. R. Powell 1960-7-9 s.n. Humboldt 10 miles SE of Orick (direct line), Dolason Hill Prairie of the Bald Hills, along Orick-Weitchpec Road. 731 Comment
  CAS-BOT-BC137737  Anthoxanthum odoratum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC8940  Anthoxanthum odoratum R. Berg 1963-2-23 1 Humboldt Arcata, Fickle Hill area Comment
  UC1541539  Anthoxanthum odoratum Harold E. Parks May 1933 4301 Humboldt Trinidad, Spruce Cove Spruce Cove; Trinidad, Spruce Cove Comment
  UC187269  Anthoxanthum odoratum Joseph P. Tracy 1906-4-29 2424 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC582468  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1936-6-27 16003 Humboldt Miranda 91 Comment
  RSA425834  Antirrhinum vexillocalyculatum subsp. breweri H. M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek. Comment
  HSC36170  Apium graveolens Gary S. Lester 1973-12-2 60 Humboldt Arcata Comment
  SDSU9935  Aquilegia formosa D. F. Howe 1962-5-21 3299 Humboldt 16.4 miles north of Garberville on #101. 61 Comment
  SEINET12093083  Aquilegia formosa F. H. Utech 1986-1 86 -391 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  HSC18040  Aquilegia formosa var. formosa Greg Bos 1965-5-2 235 Humboldt 5 mi. E of Korbel on Bald Mtn. Rd. 732 Comment
  HSC75558  Aquilegia formosa var. formosa J. O. Sawyer, R. J. Cole 1977-7-3 3006 Humboldt Environs of Mud Spring, Big Hill Rd. (F.S. 8N01) 1524 Comment
  SEINET12094713  Aquilegia formosa var. truncata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -310 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC100612  Aquilegia truncata Carl C. Marshall Jun 1886 121 Humboldt Everywhere, Humboldt Bay. Comment
  HSC90416  Arabis breweri var. breweri C. Wilson, P. Kittleson, M. Hardig 1992-3-17 36 Humboldt Titlow Hill Rd., 1.7 mi. S of intersection with Hwy. 299 1037 Comment
  UC902020  Arabis subpinnatifida Joseph P. Tracy 1949-7-19 18389 Humboldt Grouse Mountain 1584 Comment
  SJSU2568  Aralia californica H. L. Buckalew 1962-7-2 Humboldt junction of Willow Creek & E Fork Willow Creek on Hwy 299, eastern Humboldt County Comment
  UC1366087  Arbutus menziesii Nancy Ryan Zabriskie and Walter Zabriskie 1969-8-26 233 Humboldt South Fork Eel River below Piercy; South Fork Eel River Comment
  UC249508  Arbutus menziesii Joseph P. Tracy 1922-4-30 6004 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC74408  Arceuthobium campylopodum Gail Newton 1980-8-10 2022 Humboldt Near Blake Mtn. 1798 Comment
  JEPS120247  Arceuthobium campylopodum Talitha Derksen and Keli McElroy 2012-8-2 Humboldt East slope of Blake Mountain, north end South Fork Mountain, 5 mi. west of Hyampom Comment
  UC180210  Arctium minus Joseph P. Tracy 1914-10-4 4631 Humboldt Table Bluff Northern Coast, Humboldt Bay 0 Comment
  UCD50523  Arctostaphylos canescens Roman Gankin 1965-8-5 543 Humboldt Top of Chimisal Mountain west of Wailaki Recreation Area, Bureau of Land Management. Comment
  CAS-BOT-BC23907  Arctostaphylos canescens subsp. sonomensis Joseph P. Tracy 1947-7-9 17861 Humboldt Horse Mountain 1432 Comment
  RSA20914  Arctostaphylos canescens var. candidissima C. B. Wolf 1937-8-13 9229 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC23750  Arctostaphylos columbiana Joseph P. Tracy 1904-4-3 2008 Humboldt Immediate vicinity of Eureka 152 Comment
  CAS-BOT-BC23756  Arctostaphylos columbiana Alice Eastwood 1907-4-21 12 Humboldt Trinidad Comment
  CAS-BOT-BC23764  Arctostaphylos columbiana J. E. Adams 1935-5-12 1048 Humboldt Patrick's Point Comment
  CAS-BOT-BC23773  Arctostaphylos columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff 91 Comment
  JEPS38969  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  SBBG58415  Arctostaphylos columbiana H. E. Parks 1931-3-25 917 Humboldt near Patrick's Pt Comment
  UC1225896  Arctostaphylos columbiana Joseph P. Tracy 1945-5-15 17510 Humboldt Kneeland Prairie 670 Comment
  UC1225897  Arctostaphylos columbiana Joseph P. Tracy 1945-3-30 17496 Humboldt in area known as Rick's Prairie Eureka 45 Comment
  CAS-BOT-BC23735  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  HSC54509  Arctostaphylos glandulosa Overton, Butler 1979-7-23 9415 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC35598  Arctostaphylos knightii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2013 Humboldt French Camp, Bald Hills. Comment
  RSA633015  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27812 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  JEPS38923  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC31439  Arctostaphylos nevadensis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5557 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  UC585957  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  HSC40550  Arctostaphylos patula Thomas W. Nelson, Jane P. Nelson 1976-5-23 2524 Humboldt SW facing slopes 1666 Comment
  HSC54211  Arctostaphylos patula Griswold, Butler 1979-7-12 7258 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  SEINET2028710 Image available Arctostaphylos tracyi H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's Point Comment
  CAS-BOT-BC46794  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  CAS-BOT-BC47207  Arctostaphylos uva-ursi W. R. Dudley 1899-6-1 s.n. Humboldt Eureka penisnula. Comment
  HSC71372  Arctostaphylos uva-ursi J. P. Smith 1971-10-6 4971 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA286310  Arctostaphylos uva-ursi var. coactilis R. F. Thorne 1974-7-29 45082 Humboldt Samoa Dunes. Comment
  RSA89766  Arctostaphylos uva-ursi var. coactilis P. A. Munz 1954-7-25 19876 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  HSC100936  Arenaria douglasii Miss Handy Jun 1886 338 Humboldt Dry hills, Maple Cr. Comment
  BLMAR64  Armeria maritima subsp. californica Jennifer Anthony-Wheeler 1994-5-18 64 Humboldt Samoa/manilla dunes, growing in clumps around annual grasses 6 Comment
  HSC65884  Arnica cernua M. A. Baker 1980-6-16 1944 Humboldt Near Onion Mtn. 1280 Comment
  SEINET11837502  Arnica cordifolia H. P. Chandler 1901-1 1400 Humboldt Klamath River 244 Comment
  UC582488  Arnica cordifolia Joseph P. Tracy 1935-7-30 14372 Humboldt top of ridge s of Red Cap Lake; Salmon Summit 2011 Comment
  CAS-BOT-BC82433  Arnica discoidea Clarence R. Quick 1959-7-24 59 -31 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  UC166070  Arnica discoidea Joseph P. Tracy 1911-7-11 3513 Humboldt hills near Supply Creek; Hoopa Valley 182 Comment
  CAS-BOT-BC82648  Arnica latifolia Doris K. Kildale 1926-4-25 1808 Humboldt Sugar Bowl Mountain on old road [frm.] from Willow Creek to Hoopa Comment
  HSC98679  Arnica spathulata Cara Witte 2008-7-10 851 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1.5 mile from National Forest 1. Under powerlines. 1239 Comment
  SEINET11837491  Arnica tomentella J. P. Tracey 1950-1 19273 Humboldt 2 mi E of town, on trail to Croghan Hole. Trinity Summit, near Box Camp 1524 Comment
  UC180348  Arrhenatherum elatius Joseph P. Tracy 1913-6-10 4084 Humboldt near Bridgeville (Northern Coast Ranges, Rogers Ranch); Northern Coast Ranges, Rogers Ranch 243 Comment
  UC212866  Arrhenatherum elatius Joseph P. Tracy 1919-8-28 5184 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  SEINET11853294  Artemisia douglasiana J. P. Tracy 1947-1 17892 Humboldt Trinity Summit at Box camp 1463 Comment
  UCD129341  Artemisia pycnocephala Linda M. Barker 1976-7-5 1633 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SDSU6205  Artemisia suksdorfii D. F. Howe 1963-7-8 3620 Humboldt 2.5 miles west of Bridgeville on #36. 152 Comment
  HSC34272  Aruncus dioicus var. acuminatus K. Irwin 1975-8-13 Humboldt Grogans Hole Comment
  UC154231  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 Comment
  RSA46470  Aruncus sylvester Doris K. Kildale 1927-7-3 3663 Humboldt Willow Creek Flat. Comment
  HSC100257  Arundo donax J. P. Smith 2009-8-3 12642 Humboldt Along Hwy. 254 in Pepperwood. 51 Comment
  HSC58082  Asarum caudatum G. L. Clifton, Griswold 1979-8-1 11986 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  SEINET4069277 Image available Asarum caudatum O. M. Clark 1932-1 5319 Humboldt South Eureka. Comment
  UC6169  Asarum caudatum Harley P. Chandler May 1901 1267 Humboldt Redwood Belt 457 Comment
  UCR3539  Asarum caudatum David Whistler, H. M. Whistler 1964-7-31 640731- 8 Humboldt North Coast, at Del Norte county line on US Hwy 101 [between Orick and Klamath] 137 Comment
  UC494106  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Near Orick Comment
  UCD15240  Asarum caudatum Glen Greenleaf 1974-4-10 13 Humboldt along highway 36, 10.8 miles east of Hydesville on south side of road. 140 Comment
  SEINET12283173  Asclepias cordifolia J. P. Tracy 1950-1 19043 Humboldt Stony hillside, under partial shade of oaks and madrones. Scarce. Trinity River, east side, Comment
  RSA401103  Asclepias speciosa H. M. Pollard 1947-8-27 s.n. Humboldt Orleans Hotel grounds (Orleans region) Comment
  POM289176  Aster chilensis Lyman Benson 1928-7-10 448 Humboldt Clam Beach, Trinidad. 9 Comment
  RSA134590  Aster chilensis Percy C. Everett, E. K. Balls 1959-10-25 23960 Humboldt 14 miles W of Willow Creek on Hwy 299 to Arcata. 503 Comment
  RSA0006694  Astragalus agnicidus R. C. Barneby 1954-5-19 11570 Humboldt Over ridge on Henry Tosten ranch near Bear Buttes area. 4 miles south of Miranda. 762 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
  HSC57001  Asyneuma prenanthoides Overton, Butler 1979-7-24 9585 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  JEPS35140  Athyrium filix-femina var. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt hill above Weott Comment
  UC197922  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt along Black Creek Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC38380  Avena barbata Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC79448  Avena barbata Kenneth Clark 1980-4-18 578 Humboldt Shelter Cove, along access trail to Dead Man's Gulch 107 Comment
  SEINET10474443  Baccharis douglasii Mary Susan Taylor 1977-8-5 Taylor 1428 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  UC1004331  Baccharis pilularis W. L. Colwell 1954-11-20 20 Humboldt 3 mi e of, along Eel River South Fork Quadrangle 29B4; Eel River 91 Comment
  UC1199293  Baccharis pilularis Joseph P. Tracy 1920-10-31 5408 Humboldt near Grizzly Bluff (Eel River); Eel River 30 Comment
  HSC5115  Baccharis pilularis subsp. pilularis Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  HSC41913  Barbarea orthoceras M. A. Baker 1977-4-23 174 .5 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  CAS-BOT-BC145786  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of South Yager Creek. 762 Comment
  UC552762  Beckmannia syzigachne Joseph P. Tracy 1935-5-25 13848 Humboldt Fort Seward 106 Comment
  SFV18538  Bellis perennis M. Cavelti 2002-5-4 34 Humboldt On A street off 11th street, along western side of road. 20 Comment
  HSC70747  Berberis aquifolium var. repens R. York 1980-5-17 536 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC75677  Berberis nervosa L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp. 1219 Comment
  HSC27892  Berberis nervosa Clifton Raymond Chesbrough 1973-6-19 66 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC57110  Berberis nervosa Overton, Butler 1979-7-25 9851 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC1126259  Berberis nervosa H. L. Person 1931-7-30 Humboldt Fieldbrook, redwood cut-over land Fieldbrook; Eureka Quadrangle Comment
  RSA24183  Berberis pinnata C. B. Wolf 1941-3-1 9974 Humboldt Kneeland Prairie, 1/8 mi. s.e. of Kneeland school. 762 Comment
  SFV12198  Blennosperma nanum R. Gankin, W. R. Hildreth 1966-3-15 700 Humboldt Serpentine slopes of Klamath River Canyon. State Highway 96, 4.6 miles north of Hoopa. Comment
  JEPS53080  Boechera Joseph P. Tracy 1917-9-2 4838 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  HSC100574  Boisduvalia densiflora Carl C. Marshall Jul 1887 398 Humboldt Spruce Grove. Comment
  UC1103643  Bolboschoenus maritimus Joseph P. Tracy 1934-7-20 13471 Humboldt along shore Big Lagoon; along shore Big Lagoon 3 Comment
  HSC93955  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1999-10-25 1268 Humboldt Hwy. 101, mile marker 61.40 2 Comment
  HSC30150  Boschniakia strobilacea R. Sanders 1974-5-6 14 Humboldt Comment
  HSC44123  Botrychium multifidum Thomas F. Lyon, Linda M. Barker 1977-5-8 1715 Humboldt 3 mi. W of Arcata in S pasture Comment
  UC1239783  Botrychium multifidum Joseph P. Tracy 1912-7-22 3793 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  HSC56002  Boykinia major Overton, Butler 1979-7-31 11453 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC76264  Boykinia major Denis Kearns 1981-7-23 410 Humboldt Near Whiteys Peak. 1524 Comment
  CAS-BOT-BC420261  Boykinia occidentalis Ira L. Wiggins 1930-7-22 4694 Humboldt along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  CAS-BOT-BC420263  Boykinia occidentalis Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC420265  Boykinia occidentalis Doris K. Kildale 1928-7-29 5928 Humboldt Bear River at Capetown 15 Comment
  HSC39223  Boykinia occidentalis D. E. Anderson, J. P. Smith 1971-7-6 - 1320 Humboldt Rock wall near bridge over Supply Creek Comment
  HSC6582  Brassica rapa D. E. Anderson 1962-2-10 1922 Humboldt 1.5 mi. S of Trinidad Comment
  BLMAR52  Briza maxima Brad Barr June, 1982 52 Humboldt King range, Etters cabin Comment
  HSC56466  Brodiaea elegans subsp. elegans Griswold, Butler 1979-7-12 7273 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  RSA12519  Brodiaea elegans subsp. elegans Carl B. Wolf 1934-7-3 5917 Humboldt 21 miles from Orick on road to Weitchpec. 152 Comment
  SEINET199104  Brodiaea stellaris Rimo Bacigalupi, L. Constance; Moran Carlquist. 1951-6-13 3406 Humboldt Along State Highway 36 5 miles east of Bridgeville Comment
  SEINET202663  Brodiaea stellaris Milo S. Baker 1923-7-26 127 b Humboldt Above camp on south fork of Yager Creek. Comment
  HSC35968  Brodiaea stellaris Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1952 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  HSC37548  Brodiaea terrestris subsp. terrestris J. D. Ackerman 1975-6-10 457 Humboldt 1 mi. N of Samoa bridge turnoff from Samoa Blvd., S of Manila Comment
  RSA10079  Bromus carinatus Joseph P. Tracy 1926-5-2 7424 Humboldt Trinity River Valley, near the south fork. Comment
  UC180492  Bromus carinatus var. carinatus Joseph P. Tracy 1913-6-22 4274 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UCD59215  Bromus carinatus var. marginatus R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  UC212889  Bromus commutatus Joseph P. Tracy 1919-5-25 5138 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC9294  Bromus diandrus R. T. Forester 1963-4-30 53 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC1145188  Bromus laevipes Joseph P. Tracy 1950-6-15 18785 Humboldt 7 mi n of Haris (Mail Ridge); Mail Ridge 1036 Comment
  HSC74126  Bromus madritensis subsp. madritensis R. York 1980-5-23 628 Humboldt Near Buck Mtn. 1524 Comment
  UC1103350  Bromus tectorum Joseph P. Tracy 1933-5-18 12187 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  CAS-BOT-BC185516  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  CAS-BOT-BC185524  Bromus vulgaris Joseph Burtt Davy; Walter C. Blasdale 1899-6-10 5406 Humboldt North Coast Ranges. Hubbards Station. Comment
  SEINET181181 Image available Bromus vulgaris Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15067 Humboldt Bolling Grove State Park. Comment
  UCD60242  Bromus vulgaris A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  HSC95586  Cakile edentula Andrea Pickart 2002-7-8 160 Humboldt N Spit Dunes, Mad River Co. Park, W of parking area 0 Comment
  CHSC10127  Cakile maritima J. W. Johnson 1961-11-29 1415 Humboldt Arcata. At the end of ridge 3, Christenson Farm, Samoa Peninsula. Comment
  HSC40408  Cakile maritima Linda M. Barker 1976-6-22 1627 Humboldt 3 mi. W of Arcata Comment
  UC1198279  Cakile maritima Joseph P. Tracy 1946-1-13 17517 Humboldt Centerville Beach 3 Comment
  SEINET3148036  Cakile maritima J. W. Johnson 1961-8-17 1066 Humboldt Arcata. W.M. Lanphere Farm, Samoa Peninsula Comment
  RSA91828  Calamagrostis bolanderi F. W. Peirson 1941-7-28 13115 Humboldt at Patrick's Point State Park Comment
  HSC74068  Calamagrostis foliosa Joyce Walker 1980-5-7 Humboldt Four Mile Creek Comment
  UC1146639  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1728 Humboldt Mattole River Comment
  CAS-BOT-BC185239  Calamagrostis koelerioides Joseph P. Tracy 1935-7-24 14192 Humboldt Trinity Summit. Near Ranger Station. 1828 Comment
  HSC76546  Calamagrostis koelerioides Teresa Prendusi 1981-7-21 282 Humboldt Near Whiteys Peak 1646 Comment
  HSC76535  Calamagrostis nutkaensis D. K. Imper 1981-7-21 897 Humboldt Near Table Bluff 38 Comment
  HSC62990  Callitriche stagnalis David Wheeler 1979-4-22 80 Humboldt Mad River Slough, 1 mi. W of intersection of Mad River Rd. and Iverson Rd. Comment
  HSC1286  Calocedrus decurrens Elrid H. Spinas 1948-5-22 39 Humboldt Horse Mtn. Comment
  UC1197681  Calochortus amabilis Joseph P. Tracy 1935-5-25 13895 Humboldt Dobbyn Creek 152 Comment
  UC180215  Calochortus amabilis Joseph P. Tracy 1914-5-14 4422 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  CAS-BOT-BC488620  Calochortus elegans var. nanus Doris Kildale Gillespie 1931-6-7 10586 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  SEINET12044651  Calochortus elegans var. nanus M. S. Jussel 1931-1 s.n. Humboldt 20 mi N of Garberville Comment
  HSC38517  Calochortus tolmiei D. E. Anderson, J. P. Smith 1971-6-18 - 1082 Humboldt Horse Mtn. Comment
  UC1197675  Calochortus tolmiei Joseph P. Tracy 1927-6-12 8148 Humboldt Horse Mountain 1280 Comment
  UCD139588  Calochortus tolmiei Collector Unknown 1935-4-8 s.n. Humboldt Fort Seward. Comment
  HSC26870  Calochortus tolmiei Clifton Raymond Chesbrough 1973-6-19 94 Humboldt 0.5 mi. N of College Cove along coast Comment
  RSA12547  Caltha howellii Carl B. Wolf 1934-7-2 5891 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  JEPS39006  Calycadenia truncata J. P. Tracy 1911-7-5 3334 Humboldt Willow Creek Trinity River, Willow Creek 152 Comment
  HSC34488  Calypso bulbosa J. D. Ackerman 1975-5-3 436 Humboldt 1 mi. E of Blue Lake, along Hwy. 299 Comment
  HSC34523  Calypso bulbosa J. D. Ackerman 1975-5-3 442 Humboldt Just off Hwy. 299, 200 yds. E of Lord Ellis Summit, E of Blue Lake and W of Willow Creek and Redwood Creek 854 Comment
  JEPS64300  Calypso bulbosa Joseph P. Tracy 1918-5-18 Humboldt Eureka Comment
  UC14970  Calypso bulbosa Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5760 Humboldt North Coast Ranges, Box Camp, Trinity Summit Trail Box Camp; North Coast Ranges, , Trinity Summit Trail Comment
  HSC59490  Calypso bulbosa M. A. Ericksen 1979-4-28 219 Humboldt Roadside leading to Camp Bouer, Korbel. Comment
  UC1196475  Calypso bulbosa Arthur E. Connick 1928-4-15 Humboldt Prairie Creek 91 Comment
  HSC70228  Calyptridium monospermum M. A. Baker 1980-6-8 1891 Humboldt Near Buck Flat. 1554 Comment
  JEPS52522  Calyptridium umbellatum W. L. Jepson 1902-7-16 2040 Humboldt Trinity Summit 2133 Comment
  UC673024  Calyptridium umbellatum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8946 Humboldt summit near Blake Lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC40007  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1976-7-1 2903 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC449948  Calystegia occidentalis subsp. occidentalis Mrs. M. H. Manning 1901-1 Humboldt near Hupa; near Hupa Comment
  HSC98672  Calystegia occidentalis subsp. occidentalis Cara Witte 2008-7-10 868 Humboldt Along National Forest 1 on Kinsey Ridge. 1/4 mile from intersection with Forest Service Road 4N09. 1302 Comment
  HSC93522  Calystegia soldanella Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 747 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  UCD170801  Calystegia soldanella Gordon Leppig; Sylvia Leppig and Kai Neander 1998-5-6 747 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon. 2 Comment
  SEINET3991741  Camassia leichtlinii Unknown 1947-6-26 Humboldt South Fork Mtn. Comment
  HSC39613  Camassia quamash subsp. linearis Thomas W. Nelson, Jane P. Nelson 1976-6-15 2717 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC26875  Camissonia cheiranthifolia Clifton Raymond Chesbrough 1973-6-19 79 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge Comment
  UCR143291  Camissonia cheiranthifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9202 Humboldt North Coast, Samoa Peninsula just east of the drag strip 6 Comment
  HSC16439  Camissonia cheiranthifolia D. E. Anderson 1961-9-9 1795 Humboldt Big Lagoon County Park Comment
  NY679576  Camissonia cheiranthifolia subsp. cheiranthifolia L. Abrams 1916-7-18 6120 Humboldt Arcaba to Trinidad. Comment
  RSA246929  Camissonia cheiranthifolia subsp. cheiranthifolia Robert F. Thorne, Percy C. Everett 1965-8-5 35150 Humboldt Samoa Dunes. 3 Comment
  UC1196940  Camissonia contorta Joseph P. Tracy 1906-5-13 2453 Humboldt Fairhaven Northern Coast Region, Humboldt Bay Comment
  JEPS11848  Campanula prenanthoides Joseph P. Tracy 1934-8-23 13600 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  UC602536  Campanula prenanthoides Joseph P. Tracy 1927-8-14 8330 Humboldt Big Lagoon 121 Comment
  CDA42339  Campanula prenanthoides T. C. Fuller 1962-8-6 9350 Humboldt Highway 299 to Blue Lake, 4.8 miles west of Willow Creek. 0 Comment
  RSA43830  Campanula prenanthoides H. M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  SEINET10462971  Campanula prenanthoides Pollard 1948-7-23 POLLARD s.n. Humboldt Reece Point near Orleans Comment
  SEINET10972392  Campanula prenanthoides Perry 1930-7-11 Perry s.n. Humboldt Humboldt State Park Comment
  HSC56399  Campanula scouleri Griswold, Butler 1979-7-11 6978 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC58014  Campanula scouleri G. L. Clifton 1979-7-31 11815 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SEINET10873297  Campanula scouleri Griswold 1979-7-11 GRISWOLD 6978 Humboldt NEAR SNOW CAMP, IAQUA BUTTES QUAD. CLOSE TO THE TOWN OF WILLOW CR. EVERGREEN CONIFER FOREST, LAKE SIDE 1393 Comment
  HSC6630  Capsella bursa-pastoris J. L. Baker 1965-3-26 17 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  HSC38209  Cardamine breweri Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  JEPS53314  Cardamine breweri Joseph P. Tracy 1918-4-28 4891 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC37425  Cardamine californica Doris K. Kildale 1929-4-27 7444 Humboldt Lord Ellis road near Bald Mountain junction. (road to Willow Creek). Comment
  HSC26340  Cardamine californica Thomas W. Nelson 1971-4-4 365 Humboldt Above the S Fork of the Van Duzen River and beside Hwy. 36 at the bridge over the Van Duzen River Comment
  HSC36518  Cardamine californica J. D. Ackerman, A. M. Montalvo 1973-5-6 61 Humboldt 5 mi. from Weott on Bull Creek Flat Rd. 274 Comment
  HSC6697  Cardamine californica Lincoln Constance 1934-5-26 651 Humboldt Bull Creek Region; N Dyerville Flat grove near Founder's Tree 49 Comment
  SDSU2479  Cardamine californica D. F. Howe 1963-5-26 3554 Humboldt 3.7 miles east of Orick on Bald Hill road. 488 Comment
  POM214829  Cardamine californica var. integrifolia Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  RSA167405  Cardamine californica var. integrifolia Joseph P. Tracy 1950-5-7 18651 Humboldt On the Redwood House Road, S of Redwood House 1 mile, on Yager Slope. (Head of South Yager Creek). Comment
  RSA176497  Cardamine californica var. integrifolia Doris K. Kildale 1927-1-23 2974 Humboldt Van Duzen River at the Blue Shale. Comment
  CAS-BOT-BC37792  Cardamine nuttallii Joseph P. Tracy 1927-6-12 8129 Humboldt Northern Coast Ranges. Horse Mountain. 1524 Comment
  HSC26336  Cardamine oligosperma Thomas W. Nelson 1971-3-30 361 Humboldt Beside Williams Creek near Ferndale Comment
  HSC6853  Cardaria draba J. P. Tracy 1933-5-19 12201 Humboldt Eel River, Alton to Fortuna 15 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
  RSA183498  Cardionema ramosissimum J. R. Woodside 1963-5-11 11 Humboldt 1.25 miles north of Fairhaven. Comment
  CAS-BOT-BC281807  Carduus tenuiflorus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mt 762 Comment
  UC577397  Carduus tenuiflorus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow Bald Mt. 762 Comment
  UC585637  Carex abrupta Joseph P. Tracy 1937-7-29 15580 Humboldt in meadow at McKay Camp South Fork Mountain 1676 Comment
  UC562439  Carex amplifolia Joseph P. Tracy 1936-8-7 15092 Humboldt head of Little Hos Linto Cr. North Coast Ranges, Trinity Summit, Little Hos Linto Cr. 1371 Comment
  UC562440  Carex amplifolia Joseph P. Tracy 1935-6-23 13986 Humboldt French Camp Ridge 1066 Comment
  JEPS25970  Carex arcta Joseph P. Tracy 1934-7-13 13389 Humboldt Dow's Prairie. Comment
  RSA91675  Carex athrostachya Joseph P. Tracy 1935-7-27 14306 Humboldt Trinity Summit, open places at McKay Prairie. 1585 Comment
  CAS-BOT-BC19216  Carex barbarae Henry M. Pollard 1948-7-29 s.n. Humboldt Near Woodson Mine - Near Orleans. Comment
  HSC98962  Carex bolanderi Cara Witte 2008-7-16 913 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC562275  Carex bolanderi Joseph P. Tracy 1935-6-23 13985 Humboldt French Camp Ridge 1066 Comment
  HSC44058  Carex bolanderi Thomas W. Nelson, James Nelson 1976-7-28 3076 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  HSC98948  Carex bolanderi Cara Witte 2008-7-25 934 Humboldt Friday Ridge Rd. (6N08). Approximately 1 mile east of intersection with Forest Service Road 5N10. 1325 Comment
  CAS-BOT-BC19612  Carex brainerdii Joseph Prince Tracy 1935-7-30 14350 Humboldt Salmon Summit. On ridge 2 miles southwest of top. 1767 Comment
  UC249736  Carex buxbaumii Joseph P. Tracy 1924-7-13 6724 Humboldt Big Lagoon Northern Coast Ranges, Big Lagoon 6 Comment
  JEPS79838  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  HSC38078  Carex densa Thomas W. Nelson, James Nelson 1976-5-30 2629 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS80029  Carex densa Joseph P. Tracy 1925-5-30 7048 Humboldt McClellan Mountain Northern Coast Ranges, McClellan Mountain 822 Comment
  UC1103110  Carex deweyana subsp. leptopoda Joseph P. Tracy 1932-7-17 10677 Humboldt Trinity Summit, ridges E of Corral Prairie 1828 Comment
  UC562432  Carex deweyana subsp. leptopoda Joseph P. Tracy 1935-6-8 13937 Humboldt Eureka 60 Comment
  JEPS79853  Carex echinata subsp. echinata Joseph P. Tracy 1933-7-25 12845 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  HSC96552  Carex echinata subsp. phyllomanica Gordon Leppig 1997-6-19 445 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC19967  Carex exsiccata Joseph Prince Tracy 1934-7-13 13388 Humboldt Dow's Prairie. 60 Comment
  UCR52379  Carex exsiccata L. P. Janeway 1982-6-12 4 Humboldt Dry Lagoon 3 Comment
  HSC103369  Carex feta Thomas W. Nelson, Jane Nelson 1982-7-11 7115 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  POM126509  Carex feta Joseph P. Tracy 1921-6-12 5828 Humboldt Butler Valley. 152 Comment
  CAS-BOT-BC20012  Carex feta H. D. Ripley; R. C. Barneby 1945-6-16 6823 Humboldt NW of Harris. 883 Comment
  SEINET4292220 Image available Carex fracta Unknown 2003-1 7942 Humboldt On northeast side of Titlow Hill Road, across from a small pond, on the map but un-named, 1.1 km south of Cold Spring. Grouse Mountain quad. Comment
  UC1103063  Carex globosa Joseph P. Tracy 1932-5-1 9852 Humboldt 3 mi n Garberville; North Coast Ranges, Redway 182 Comment
  UC1103070  Carex globosa Joseph P. Tracy 1942-6-15 17164 Humboldt Garberville 152 Comment
  CAS-BOT-BC20870  Carex globosa Joseph Prince Tracy 1932-4-23 9832 Humboldt North Coast Ranges. Englewood. 91 Comment
  CAS-BOT-BC20876  Carex globosa Joseph Prince Tracy 1927-7-4 8242 Humboldt North Coast Ranges. Blue Slide, on Van Duzen River. 91 Comment
  JEPS25999  Carex gracilior Joseph P. Tracy 1936-5-29 14826 Humboldt on ridge e Orick; Gans Prairie 548 Comment
  JEPS25963  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Northern Coast Ranges. Phillipsville, facing South Fork of Eel River Comment
  JEPS79844  Carex gynodynama Joseph P. Tracy 1936-6-21 14991 Humboldt Iaqua 609 Comment
  JEPS75426  Carex hendersonii W. L. Jepson 1932-8-2 16474 Humboldt Deer-foot Flat Dyerville, Bull Creek, Deer-foot Flat 88 Comment
  SEINET10650830  Carex hendersonii Victor Duran 1933-5-12 Duran 3412 Humboldt Bull Creek, at S Fork of the Eel River. Redwood forest floor. Comment
  UC1152061  Carex hendersonii Joseph P. Tracy 1948-6-13 18042 Humboldt halfway between Bridgeville and Blocksburg; Larrabee Creek Comment
  CHSC90268  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8542 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  CAS-BOT-BC35566  Carex jonesii Joseph Prince Tracy 1932-7-15 10573 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  UC562427  Carex laeviculmis Joseph P. Tracy 1933-7-25 12856 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC562633  Carex leporina Joseph P. Tracy 1936-6-28 15014 Humboldt near Murphy Meadow (Bald Mountain); Bald Mountain 1066 Comment
  UC1103575  Carex leptalea H. E. Parks and Joseph P. Tracy 1931-6-7 9557 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  HSC48371  Carex leptopoda D. H. Norris May 1970 12464 Humboldt Gold-Bluff Beach, Prairie Creek Redwoods State Park Comment
  UC1115806  Carex luzulina var. luzulina Joseph P. Tracy 1937-7-9 16341 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC32130  Carex multicaulis Joseph Prince Tracy 1933-7-11 12662 Humboldt Horse Mountain. 1432 Comment
  CAS-BOT-BC119544  Carex nudata L. P. Janeway 1983-7-23 437 Humboldt Hoopa quad. Along the W side Klamath River at Aikens Creek. 91 Comment
  JEPS80023  Carex nudata Joseph P. Tracy 1911-6-4 3220 Humboldt along Little River 5 mi from coast; Northern Coast Region, Little River 121 Comment
  HSC48135  Carex nudata D. H. Norris 1971-7-17 19598 Humboldt Along Redwood House Rd., 4 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  CAS-BOT-BC119389  Carex obnupta T. G. W. s.n. Humboldt Arcata Comment
  POM160309  Carex ovalis Joseph P. Tracy 1926-6-20 7631 Humboldt Horse Mountain. 1463 Comment
  CAS-BOT-BC119269  Carex ovalis Alice Eastwood; John Thomas Howell 1937-6-23 4830 Humboldt Near Yager Comment
  UC1103581  Carex pachystachya Joseph P. Tracy 1928-5-13 8432 Humboldt hillside facing Fleener Creek (Centerville); North Coast Ranges 15 Comment
  UC562258  Carex pansa Joseph P. Tracy 1935-7-18 14104 Humboldt next to Table Bluff (around Humboldt Bay); around Humboldt Bay 3 Comment
  JEPS26001  Carex preslii Joseph P. Tracy 1938-6-9 15878 Humboldt borders of pond, Dobbyn Creek Dobbyn Creek 152 Comment
  JEPS79859  Carex rossii Joseph P. Tracy 1935-6-2 13921 Humboldt Big Lagoon 3 Comment
  UC3030704  Carex serratodens Joseph P. Tracy July, 1908 2898 Humboldt near Low Gap (Dinsmore's Ranch, ridge between Van Duzen and Mad Rivers); Northern Coast Ranges 1066 Comment
  CHSC102857  Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt Outer North Coast Range. Above Chezen Road, at junction with Route 299; between Lord-Ellis and Berry summits. 510 Comment
  RSA757866  Carex subbracteata P. F. Zika 2009-6-15 24494 Humboldt Above route 299, 2.3 road miles west of junction with Chezen Road. 680 Comment
  SEINET4290245 Image available Carex subbracteata Unknown 2009-1 24497 Humboldt Outer North Coast Range (NCoRo), between Lord-Ellis and Berry summits. Above Chezen Road, at junction with Route 299. Comment
  CAS-BOT-BC116681  Carex subfusca Joseph Prince Tracy 1936-6-17 14954 Humboldt Buck Mountain, lower foothills of its NW slope. 762 Comment
  JEPS109249  Carex subfusca D. W. Taylor 2007-7-11 20161 Humboldt Six Rivers National Forest, Horse Mountain, Titlow Hill Road at the junction with Forest Road 6N18. Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  CAS-BOT-BC116683  Carex subfusca Joseph Prince Tracy 1928-6-17 8450 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC115544  Carex unilateralis Joseph Prince Tracy 1941-6-29 16935 Humboldt Large dense clump, Hettenshaw Valley 944 Comment
  UC1115821  Carex unilateralis Joseph P. Tracy 1938-7-5 16007 Humboldt old Strong's District School House, 5 miles E of town 45 Comment
  POM126087  Carex utriculata Joseph P. Tracy 1924-7-4 6706 Humboldt Snow Camp. 1372 Comment
  UC1056035  Carex viridula var. viridula H. E. Parks September 1935 5214 Humboldt Dry Lagoon Comment
  UC1103604  Carex viridula var. viridula Joseph P. Tracy 1934-7-30 13505 Humboldt along coast in front of S. End of Stone Lagoon; Dry Lagoon 3 Comment
  HSC20521  Castilleja affinis subsp. litoralis D. E. Anderson 1962-7-10 2244 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  UC582571  Castilleja ambigua subsp. ambigua H. E. Parks and Joseph P. Tracy 1928-9-8 8503 Humboldt Big Lagoon 6 Comment
  SEINET10745035  Castilleja ambigua subsp. humboldtiensis Philip A. Munz 1925-6-20 Munz 9890 Humboldt Eureka, partly dry saline flats Comment
  CAS-BOT-BC255521  Castilleja applegatei var. pinetorum F. W. Pennell; J. P. Tracy 1940-7-7 26097 Humboldt Grouse Mountain, w. of Salyer 1554 Comment
  CAS-BOT-BC255523  Castilleja applegatei var. pinetorum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC99531  Castilleja arachnoidea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 195 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  HSC56127  Castilleja miniata G. L. Clifton, Griswold 1979-8-1 11925 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC1196861  Castilleja miniata Joseph P. Tracy 1912-7-31 3950 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC582577  Castilleja miniata Joseph P. Tracy 1932-7-14 10545 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  HSC72497  Castilleja miniata J. P. Smith, Steve Selva 1970-6-30 4120 Humboldt Comment
  HSC30748  Castilleja pruinosa Brad Klipfel 1974-5-30 1349 Humboldt Beside the Redwood Valley to Hoopa Rd. Comment
  HSC44346  Castilleja pruinosa Brad Klipfel 1975-6-17 689 Humboldt Horse Mtn. Comment
  UC1222828  Castilleja pruinosa Joseph P. Tracy 1950-7-2 18978 Humboldt below Grizzly Camp (at crossing of Little Hors Linto Creek); Little Hors Linto Creek Comment
  UC1502113  Ceanothus R. Sutherland 1976-2-2 A 1 .2.76 Humboldt saddle just ne Rattlesnake Ridge; Pt. Delgada Quad., just ne of Rattlesnake Ridge 1051 Comment
  HSC44349  Ceanothus arcuatus Brad Klipfel 1975-7-11 695 Humboldt Horse Mtn. Comment
  UCR32075  Ceanothus cuneatus David J. Keil 1983-7-2 17328 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  CAS-BOT-BC49657  Ceanothus foliosus var. foliosus C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Ridge near Needle Roack Cross Roads, SW corner of Humboldt Co. Comment
  CAS-BOT-BC50055  Ceanothus incanus W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River in woods Comment
  POM118617  Ceanothus incanus Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  RSA134579  Ceanothus incanus Percy C. Everett, E. K. Balls 1959-10-26 23977 Humboldt 6 mi SE from Honeydew on Old Coast Road to Ettersberg. 518 Comment
  SBBG116553  Ceanothus incanus D. H. Wilken 2003-7-22 16175 Humboldt near Windy Nip Gap, Mattole Rd, 1.5 km SW of Cathy's Pk Comment
  POM118616  Ceanothus incanus Marcus E. Jones 1924-4-28 s.n. Humboldt Sagtorville Comment
  CAS-BOT-BC63676  Ceanothus integerrimus L. B. Kildale 1927-7-17 3751 Humboldt Bug Creek. 792 Comment
  HSC18298  Ceanothus integerrimus Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  OBI10458  Ceanothus integerrimus Carl B. Wolf 1937-8-13 9235 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New road towards Trinity summit 1219 Comment
  UC275290  Ceanothus integerrimus Joseph P. Tracy 1924-7-29 6737 Humboldt Mountain slopes along rd between Three Creeks and mouth of Willow Creek Northern Coast Ranges 1005 Comment
  HSC36680  Ceanothus parryi R. Sutherland 1975-5-2 7 .2575 Humboldt Near old Hwy. 101 116 Comment
  HSC43179  Ceanothus parryi R. Sutherland 1975-6-19 2 .19675 Humboldt 2 mi NE of Briceland 178 Comment
  UC1052837  Ceanothus parryi W. L. Colwell 1955-6-7 27 Humboldt Tree miles west of Weott, one half mile norht of Grasshopper Mountain lookout 914 Comment
  HSC23276  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1293 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  BLMAR673  Ceanothus thyrsiflorus Jennifer Wheeler 2013-6-7 673 Humboldt King range, Strawberry Rock 21 Comment
  CAS-BOT-BC52955  Ceanothus thyrsiflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  UC1198000  Ceanothus thyrsiflorus J. P. Tracy 1901-6-23 1166 Humboldt Eureks 0 Comment
  SBBG4552  Ceanothus thyrsiflorus var. thyrsiflorus M. J. Cody 1938-7-14 Humboldt Trinidad Comment
  CAS-BOT-BC52865  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road, 5 miles north and 2 miles east of Boynton Prairie 630 Comment
  HSC43224  Ceanothus velutinus R. Sutherland 1975-12-6 2 .61275 Humboldt 305 Comment
  CDA35602  Ceanothus velutinus T. C. Fuller, T. Gallion 1959-7-23 2817 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  HSC56255  Ceanothus velutinus var. velutinus Walter Overton 1979-8-1 12389 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  JEPS44147  Centaurea melitensis Lincoln Constance 1934-6-11 852 Humboldt lower Look Prairie (and Bull Creek road to Dyerville); Bull Creek Region, South Fork Eel River Comment
  UC166091  Centaurea melitensis Joseph P. Tracy 1908-6 2887 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CDA7305  Centaurea nigra E. C. Whitney 1968-9-6 Humboldt Holmes Flat. Rutledge property. 0 Comment
  HSC100256  Centaurea solstitialis J. P. Smith 2009-8-3 12644 Humboldt Along the Eel River. 23 Comment
  SEINET11860764  Centaurea solstitialis J. P. Tracy 1948-9-20 18216 Humboldt vicinity of Hosler Creek, Hoopa Valley 107 Comment
  UC1225826  Centaurium erythraea Joseph P. Tracy 1948-9-26 18236 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  POM318967  Centaurium muehlenbergii Patricia Wilder 1968-8-22 4430 Humboldt Bull Creek Flat, Humboldt Redwoods State Park, north of Weott and west of U. S. 101; Coast Ranges, South Fork of Eel River drainage area. 61 Comment
  UC1198614  Centunculus minimus Joseph P. Tracy 1934-6-23 13254 1/2 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  HSC72635  Cephalanthera austiniae J. P. Smith 1977-7-3 9248 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  HSC16592  Cephalanthera austiniae D. K. Walker 1960-7-21 Humboldt West boundary of Simpson Redwood land, 1/2 mi. N of 500 A Road. Comment
  HSC68055  Cerastium arvense J. P. Smith, J. O. Sawyer 1976-5-2 8634 Humboldt Redwood Creek-Hoopa Rd., 0.6 mi. W of its junction with Loop Rd. in Hoopa Reservation 122 Comment
  HSC57698  Chaenactis douglasii var. douglasii G. L. Clifton, Griswold 1979-7-25 10927 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC99051  Chamaecyparis lawsoniana Cara Witte 2008-6-27 772 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  POM161038  Chamaecyparis lawsoniana Joseph P. Tracy 1926-6-27 7672 Humboldt Horse Mountain 1463 Comment
  CAS-BOT-BC166038  Chamerion angustifolium subsp. circumvagum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC76626  Chamerion angustifolium subsp. circumvagum Teresa Prendusi 1981-7-24 490 Humboldt Near Whiteys Peak 1585 Comment
  UC144090  Chamerion angustifolium subsp. circumvagum J. P. Tracy 1903-8-9 1938 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC68263  Cheilanthes gracillima J. H. Thomas 1949-6-13 923 Humboldt Six Rivers National Forest - along trail between Le Perron Flat and Whiteys Peak (East of town of Orleans). 1828 Comment
  HSC76324  Cheilanthes gracillima Teresa Prendusi 1981-7-21 267 Humboldt Near Whiteys Peak 1646 Comment
  UC197915  Cheilanthes gracillima Joseph P. Tracy 1912-7-26 3841 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC995  Cheilanthes gracillima J. Wendell Howe 1934-7-21 1314 Humboldt Near Cold Spring, Horse Mtn. Comment
  CHSC76026  Chenopodium rubrum var. rubrum Vernon H. Oswald 1999-8-19 9834 Humboldt Coastal Strand. Clam Beach County Park on Hwy. 101 between Arcata and Trinidad. 6 Comment
  HSC71674  Chimaphila menziesii M. A. Baker 1980-6-26 2390 Humboldt Near Sims Creek 610 Comment
  HSC72630  Chimaphila umbellata J. P. Smith 1977-7-3 9253 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  JEPS50839  Chlorogalum pomeridianum var. pomeridianum Wayne Roderick 1966-6-18 Humboldt ca 3 road mi n Bridgeville 762 Comment
  UCD110100  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1934-8-29 13641 Humboldt South Fork Mountain: barren rocky places along summit near Blake lookout. 1706 Comment
  UC179916  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
  HSC16243  Circaea alpina subsp. pacifica D. E. Anderson 1967-6-7 4349 Humboldt Along Puter Creek, tributary to Mad River, about 3 mi. S of Blue Lake Comment
  HSC99470  Circaea alpina subsp. pacifica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 124 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS11944  Cirsium arvense Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-11 4757 Humboldt 0.5 mi n Mad River bridge (n of Arcata, in field along U.S. Highway 101); U.S. Highway 101 Comment
  CAS-BOT-BC284406  Cirsium arvense D. E. Breedlove 1961-7-4 662 Humboldt On north bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  POM289622  Cirsium arvense Lyman Benson 1929-7-12 1789 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC284439  Cirsium brevistylum Peter H. Raven; R. Snow 1958-7-21 13648 Humboldt Along Titlow Hill Road 0.7 miles south of United States Highway 299 Comment
  CDA1217  Cirsium douglasii var. douglasii T. C. Fuller 1962-8-6 9352 Humboldt Hwy 299, 3.4 miles east of Berry Summit. Comment
  OBI36672  Cirsium douglasii var. douglasii David J. Keil 1983-7-2 17318 Humboldt Ca 4 mi SE of SR 299 along titlow Hill rd below Horse Mtn summit rd Comment
  CAS-BOT-BC279976  Cirsium douglasii var. douglasii Peter H. Raven; R. Snow 1958-7-20 13647 Humboldt Along Titlow Hill Road 3.8 miles south of United States Highway 299 Comment
  HSC71801  Cirsium occidentale var. candidissimum M. A. Baker 1980-6-26 2379 Humboldt Near Sims Creek 610 Comment
  UC1223058  Cirsium occidentale var. candidissimum Joseph P. Tracy 1950-6-15 18779 Humboldt 5 mi n of Harris (on old Overland Road); Mail Ridge Comment
  RSA0070876  Cirsium remotifolium Joseph P. Tracy 1921-7-31 5860 Humboldt Table Bluff. 121 Comment
  UC1199223  Cirsium remotifolium var. rivulare Joseph P. Tracy 1930-7-6 8847 Humboldt Iaqua 609 Comment
  HSC68157  Cirsium vulgare J. P. Smith 1971-10-6 4972 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1119200  Cirsium vulgare H. L. Person 1932-7-21 Humboldt Blue Lake Eureka Quadrangle, Blue Lake Comment
  RSA43835  Cirsium vulgare H. M. Pollard 1948-8-9 s.n. Humboldt Camp Creek, near Orleans. Comment
  UC162624  Clarkia amoena Joseph P. Tracy 1911-7-10 3499 Humboldt along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges 762 Comment
  UCD104025  Clarkia amoena K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  CAS-BOT-BC160970  Clarkia amoena subsp. amoena L. R. Abrams 1916-7-11 6020 Humboldt Mouth of Grizzly Creek on Van [Duzon] Duzen River - Redwood forest Comment
  UC204004  Clarkia amoena subsp. amoena Joseph P. Tracy 1918-7-3 4989 Humboldt Wilder Ridge Northern Coast Ranges, Kings Peak Range 762 Comment
  POM271818  Clarkia amoena subsp. huntiana Lyman Benson 1929-7-19 1865 Humboldt Dyerville to Matole River. Comment
  JEPS43546  Clarkia amoena subsp. huntiana W. L. Jepson 1902-7-12 2020 Humboldt Martin's Ranch South Fork of Trinity <River> Comment
  UC20318  Clarkia amoena subsp. whitneyi H. N. Bolander 1866-1 6534 Humboldt Shelter Cove; ; Shelter Cove, Humboldt Co. Comment
  CHSC52939  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd ca 1/4 mile north of the boat ramp. 3 Comment
  UC58846  Clarkia gracilis subsp. gracilis Harley P. Chandler June, 1901 1327 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC1196983  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1912-7-4 3730 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC144077  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1908-6 2679 Humboldt nw slope Buck Mountain; Northern Coast Ranges 609 Comment
  UC1071918  Clarkia purpurea subsp. viminea H. and M. Lewis 1947-6-14 422 Humboldt Highway 36 at bridge 4-119 South Fork of Van Duzen River Comment
  UC1198505  Clarkia rhomboidea Joseph P. Tracy 1913-6-20 4214 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC672996  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1937-3-17 15285 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC45629  Claytonia perfoliata Diane L. Reed 1978-4-22 29 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC100605  Claytonia perfoliata Carl C. Marshall Apr 1886 105 Humboldt Damp places. Comment
  HSC95726  Claytonia perfoliata subsp. perfoliata Steven Lee 2004-3-17 2 Humboldt S Fork Rd. from Hwy. 299 to Co. Rd. 341, along river access trail at end of road Comment
  HSC74046  Claytonia saxosa Gail Newton 1980-7-11 1320 Humboldt Near Red Mtn. 1341 Comment
  HSC47503  Claytonia sibirica Sheila Logan 1978-4-10 30 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  UCD20385  Claytonia sibirica K. Esau 1935-5-22 s.n. Humboldt Fort Seward. Comment
  CAS-BOT-BC443889  Claytonia sibirica C. D. Duncan 1920-9-27 s.n. Humboldt Supply Creek Canon [Canyon] near Hoopa Comment
  JEPS43310  Claytonia sibirica W. L. Jepson 1902-6-29 1951 Humboldt Redwood Creek; Hupa Road Comment
  RSA183605  Claytonia sibirica R. D. Modafferi 1965-4-8 14 Humboldt 2.2 miles N of Trinidad on Trinity Street. 305 Comment
  HSC99239  Claytonia washingtoniana C. E. Fellows 1971-6-7 454 Humboldt 0.35 mi. E of Arlington Rd. on Alder Grove Rd. Comment
  HSC99240  Claytonia washingtoniana C. E. Fellows 1971-4-10 424 Humboldt About 1 mi. S of College of the Redwoods, W side of surface road Comment
  HSC14260  Clinopodium douglasii Paul Shields Jun 1955 Humboldt 3 mi. N of Weott Comment
  HSC57030  Clintonia uniflora Overton, Butler 1979-7-24 9654 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1103460  Clintonia uniflora Joseph P. Tracy 1926-6-6 7582 Humboldt Hoopa Mountain, near summit on road w from Hoopa to Bair's Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC100710  Cnicus arvensis Carl C. Marshall Sep 1886 250 Humboldt Vicinity of Mad River. Comment
  BLMAR639  Collinsia grandiflora Jennifer Wheeler 2011-6-21 639 Humboldt Lacks Creek, Pine Ridge Road 1158 Comment
  HSC74444  Collinsia grandiflora M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  UC41758  Collinsia grandiflora Chestnut and Drew 1880-7-9 Humboldt Kneeland Comment
  HSC97485  Collinsia linearis Cara Witte 2007-5-23 94 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  RSA60814  Collinsia linearis Frank W. Gould 1939-5-30 831 Humboldt Southwestern side of Horse Mountain. 762 Comment
  HSC102619  Collinsia parviflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1606 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC20606  Collinsia parviflora Elrid H. Spinas 1948-5-22 29 Humboldt Horse Mtn. Comment
  HSC32342  Collinsia parviflora D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5639 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC24394  Collinsia rattanii J. O. Sawyer 1970-6-24 2281 Humboldt W of Mill Creek Lakes. 1677 Comment
  UC203965  Collinsia rattanii Joseph P. Tracy 1918-5-26 4945 Humboldt lower slopes of Grouse Mountain towards Redwood Creek; Northern Coast Ranges, Grouse Mountain 762 Comment
  JEPS25071  Collinsia sparsiflora var. arvensis Joseph P. Tracy 1904-4-3 2007 Humboldt immed. vicinity Eureka 0 Comment
  UC582446  Collinsia torreyi var. wrightii Joseph P. Tracy 1933-7-16 12777 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  HSC35779  Collomia grandiflora Thomas W. Nelson, B. Reinhardt 1975-7-30 2095 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  UC52837  Collomia grandiflora Joseph Burtt Davy and Walter C. Blasdale 1899-5 5770 Humboldt hills around Hoopa Valley 304 Comment
  UC52547  Collomia heterophylla Mrs. M. H. Manning June, 1902 Humboldt Hupa Comment
  HSC70702  Collomia tracyi Gail Newton 1980-7-15 1550 Humboldt Near Sims Mtn. 1311 Comment
  HSC37858  Conium maculatum Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UCR275122  Conium maculatum Charity A. Hartshorn 2016-4-24 19 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  HSC27899  Conium maculatum B. R. Templeton 1962-5-15 Humboldt 3 mi S of Arcata Comment
  SEINET10454738  Conium maculatum Mary Susan Taylor 1977-8-5 Taylor 1433 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  UC562291  Convolvulus arvensis Joseph P. Tracy 1934-7-15 13407 Humboldt near Fields Landing; North Coast Ranges, around Humboldt Bay 6 Comment
  HSC100900  Coptis occidentalis Carl C. Marshall Apr 1887 374 Humboldt Supply Creek. 610 Comment
  JEPS64350  Corallorhiza mertensiana Virginia P. Fox July 1919 Humboldt Bald Mountain Comment
  JEPS6785  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1938-8-14 16118 Humboldt South Fork of Trinity River (mountain slopes w of its mouth) 304 Comment
  CAS-BOT-BC101149  Corethrogyne filaginifolia L. R. Abrams 1916-7-18 6096 Humboldt Arcata to Trinidad Comment
  UC204865  Corethrogyne filaginifolia J. P. Tracy 1918-7-5 5025 Humboldt Mc Kee's Field; White Thorn Valley 304 Comment
  SD42327  Cornus californica Carl B. Wolf 1937-8-13 9251 Humboldt 11 miles east of Hoopa Valley on new road towards Trinity Summit. 1670 Comment
  CAS-BOT-BC209863  Cornus nuttallii John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC212018  Cornus nuttallii Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  HSC97551  Cornus nuttallii Cara Witte 2007-5-31 159 Humboldt National Forest Road 1. 1 mile south of intersection with 5N04. 1551 Comment
  UC1222617  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC634835  Cornus nuttallii H. L. Mason 1928-7-14 4897 Humboldt E. Fork Eel R. near Garberville; E. Fork Eel R. Comment
  UCSB24633  Cornus nuttallii Jensen, Karen 1965-4-15 Humboldt 1 km. west of Hwy. 101 by Miranda turnoff 91 Comment
  CAS-BOT-BC212174  Cornus sericea Doris K. Kildale 1927-6-4 4164 Humboldt Scotia Bluffs 30 Comment
  JEPS50152  Cornus sericea subsp. sericea Lincoln Constance 1934-6-11 844 Humboldt trail along e. bank S. Fork Eel R., N. Dyerville Flat Bull Creek Region, S. Fork Eel R., N. Dyerville Flat Comment
  UC1051594  Cornus sericea subsp. sericea Joseph P. Tracy 1948-9-2 18201 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  UC1199210  Coronopus didymus Joseph P. Tracy 1932-10-30 10901 Humboldt Eel River, Alton to Fortuna Eel River; Northern Coast Region, Eel River 15 Comment
  HSC64124  Coronopus didymus J. P. Smith 1973-5-26 6876 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  BLMAR230  Corylus cornuta subsp. californica Jennifer Anthony-Wheeler 1996-9-26 230 Humboldt King range, growing alng Bear creek between Wailaka & Nadelos campgrounds 548 Comment
  POM270388  Corylus cornuta var. californica Lyman Benson 1927-7-12 621 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  RSA20962  Corylus cornuta var. californica C. B. Wolf 1937-9-13 9337 Humboldt North Coast Range, summit of Grouse Mt. 1645 Comment
  CAS-BOT-BC176451  Cotoneaster simonsii Peter F. Zika 2007-7-19 23174 Humboldt Hookton Road, S end of Humboldt Bay, (NCo, North Coast) 10 Comment
  UC1223033  Cotula coronopifolia Joseph P. Tracy 1948-5-31 17986 Humboldt Robertson's Sheep Ranch halfway between Garberville and Harris; Robertson's Ranch 609 Comment
  UCD130911  Cotula coronopifolia Malcolm A. Nobs; S. Galen Smith 1949-8-3 1163 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  HSC77512  Crassula connata K. Berg 1984-4-8 520 Humboldt South spit of Humboldt Bay, 1.4 mi. S of South Jetty, E of road Comment
  HSC79466  Crassula connata Kenneth Clark 1981-4-5 1226 Humboldt 1/4 E of Dead Man's Gulch 122 Comment
  RSA600661  Crataegus douglasii Louis C. Wheeler 1950-8-14 6780 Humboldt 5 mi. east of Shelter Cove. Comment
Read comments
Jun 20 2011
  UC581731  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  HSC48026  Crepis acuminata Brad Klipfel 1974-6-25 424 Humboldt Horse Mtn. Comment
  POM220924  Crepis capillaris D. D. Keck, J. Clausen 1935-6-16 3397 Humboldt Orick Comment
  SD39858  Crepis capillaris Edith A. Purer 1932-7-30 4683 Humboldt South of Orick. Comment
  CAS-BOT-BC290586  Crepis capillaris L. R. Abrams 1916-7-18 6114 Humboldt Arcata to Trinidad, 18 mi. along coast Comment
  HSC48323  Crepis capillaris Maralyn O'Meara 1974-7-11 543 Humboldt Kneeland; Barry Ridge Comment
  RSA15572  Crepis capillaris C. B. Wolf 1927-8-28 1188 Humboldt Eureka Bay on Arcata road Comment
  RSA32733  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt Near Blue Lake, 5 miles from Arcata. Comment
  UC538047  Crepis occidentalis E. B. Babcock 1932-6-25 404 Humboldt South Fork Mt.; exposed n slope, Humboldt-Trinity Counties 1828 Comment
  HSC98953  Crepis pleurocarpa Cara Witte 2008-7-28 953 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  RSA113706  Crepis setosa Joseph P. Tracy 1948-9-20 18215 Humboldt Hoopa Valley 107 Comment
  RSA113707  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek, near the mouth in woods along an old road 152 Comment
  UC726368  Crepis vesicaria A. A. Heller 1923-7-9 13777 Humboldt near Blue Lake (5 mi from Arcata) Comment
  HSC100428  Crocidium multicaule Carl C. Marshall Apr 1887 366 Humboldt Hoopa Valley, near Supply Creek. Comment
  HSC41196  Cryptantha affinis Thomas W. Nelson 1977-7-4 3611 Humboldt Along road N of Alder Springs. 1524 Comment
  UC525607  Cryptantha affinis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8941 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC175691  Cryptantha flaccida Joseph P. Tracy 1908-6 2758 Humboldt opposite Buck Mountain (at Little Van Duzen Bridge); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC175783  Cryptantha torreyana Joseph P. Tracy 1912-6-9 3655 Humboldt Alton Northern Coast Region 30 Comment
  MACF017398  Cupressus macrocarpa Trudy R. Ericson 1974-8-6 204 Humboldt Off U.S. 101, exit to Patrick's Beach State Park, near Seaward Drive. Comment
  UC562672  Cuscuta campestris Joseph P. Tracy 1933-8-25 12997 Humboldt near mouth of Eel River; Centerville Beach 6 Comment
  HSC36310  Cuscuta salina Karen Burgessen 1973-5-30 Humboldt Near Humboldt Bay at oxidation ponds Comment
  RSA249518  Cuscuta salina R. F. Thorne, P. C. Everett 1965-8-7 35206 Humboldt Samoa Peninsula. 0 Comment
  HSC26843  Cymbalaria muralis Thomas W. Nelson 1971-1-8 323 Humboldt In and about Ferndale Comment
  UC922005  Cynodon dactylon Joseph P. Tracy 1940-10-17 16763 Humboldt South Fork Station 60 Comment
  SEINET201035  Cynodon dactylon var. dactylon Joseph P. Tracy 1940-10-17 16763 Humboldt South Fork Station 61 Comment
  HSC73936  Cynoglossum grande Gail Newton 1980-6-28 675 Humboldt Near Mad River Butte. 1536 Comment
  HSC74370  Cynoglossum occidentale M. A. Baker 1980-5-18 1289 Humboldt Near Black Mtn. 1006 Comment
  HSC45050  Cynosurus echinatus R. Sutherland 1978-4-24 3 .24478 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  HSC45219  Cynosurus echinatus M. Alcasas 1978-6-3 126 Humboldt Titlow Hill Rd., 0.3 mi. from Hwy. 299 869 Comment
  HSC37996  Cyperus eragrostis Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  CAS-BOT-BC114624  Cyperus eragrostis Joseph Prince Tracy 1935-7-17 14099 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  HSC96372  Cyperus parishii Gordon Leppig 2004-9-6 2197 Humboldt E bank of Trinity River, across river from the Loncar Summer Estate, 3.5 km N of Willow Creek 120 Comment
  JEPS64063  Cyperus squarrosus Joseph P. Tracy 1916-9-5 4773 Humboldt 4 mi. above mouth S. Fork Eel R.; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  UC213327  Cyperus squarrosus Joseph P. Tracy 1920-8-15 5362 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  HSC74131  Cystopteris fragilis R. York 1980-5-23 613 Humboldt Near Buck Mtn. 1524 Comment
  UCR123955  Cystopteris fragilis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6970 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  UC42487  Cystopteris fragilis C. C. Marshall 1888-1 Humboldt Comment
  POM66966  Cytisus monspessulanus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC14666  Cytisus scoparius R. E. Hafenfeld 1965-5-13 67 Humboldt County Rd. 1/2 mi. from Gold Bluff Beach Rd. Comment
  HSC14669  Cytisus scoparius Francis Winter 1960-4-23 Humboldt 1.0 mi W of Angel Ranch on Korbel-Maple Creek Rd. 381 Comment
  HSC14662  Cytisus scoparius var. andreanus T. M. Mingo May 1965 Humboldt About 4 mi. N of College Cove Comment
  RSA728072  Dactylis glomerata Gary D. Wallace 1979-7-24 1864 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  SEINET4565919  Dactylis glomerata J. B. Davy 1899-6-16 5557 Humboldt Scotia Comment
  CAS-BOT-BC189744  Danthonia californica Joseph P. Tracy 1932-7-10 10392 Humboldt Trinity Summit. Klamath Mountains. Corral Prairie. 1524 Comment
  UCD60512  Danthonia californica var. americana A. H. Murphy 1947-6-9 s.n. Humboldt Parrott's Ranch, Table Bluff, ca. 1.5 miles north of Loleta. Comment
  UCD60525  Danthonia californica var. americana R. Tofsrud 1948-9-3 s.n. Humboldt Border of Clear Lake, on road from Horse Mt. to Grouse Mt. 1371 Comment
  CAS-BOT-BC420357  Darmera peltata Doris K. Kildale 1928-6-24 5247 Humboldt Redwood Creek at Berry's Comment
  UC1198874  Darmera peltata Joseph P. Tracy 1935-9-29 14755 Humboldt Blue Slide Van Duzen River (on the Van Duzen River) 91 Comment
  UC14524  Darmera peltata W. C. Blasdale 1896-6-7 Humboldt near Deer Creek (Mad River); Mad River Comment
  UC1197351  Daucus pusillus J. P. Tracy 1899-7-22 275 Humboldt Eureka Comment
  POM232322  Daucus pusillus I. L. Wiggins 1930-7-11 4678 Humboldt Near Samoa Comment
  UC1196322  Delphinium decorum subsp. decorum J. P. Tracy 1904-5-1 2044 Humboldt bluff back of Bucksport; immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC9028  Delphinium decorum subsp. tracyi Doris Kildale Gillespie 1931-6-7 10641 Humboldt South Fork Mtn., Blake Lookout 1726 Comment
  CAS-BOT-BC9029  Delphinium decorum subsp. tracyi Doris Kildale Gillespie 1931-5-10 10550 Humboldt Snow Camp Comment
  CHSC97961  Delphinium decorum subsp. tracyi Kaylea Eickhoff; Cara M. Witte 2005-6-15 12 Humboldt 14.1 miles south of Hwy. 299 on NF1, 0.25 miles NE of Grouse Mountain. Rocky serpentine outcrop. UTM 0444876, 4511301. 1400 Comment
  JEPS23882  Delphinium decorum subsp. tracyi Frank W. Gould 1939-5-30 837 Humboldt Near top of Horse Mountain (about 25 miles due east of Eureka) Comment
  RSA259575  Delphinium decorum subsp. tracyi Thomas W. Nelson 1974-5-7 1236 Humboldt Kneeland Road, 1/2 mile N of the Kneeland School Comment
  UC502928  Delphinium decorum subsp. tracyi Joseph P. Tracy 1932-7-12 10429 Humboldt Corral Prairie Klamath Mountains, Trinity Summit (open ground) 1524 Comment
  CAS-BOT-BC10311  Delphinium hesperium Harley Pierce Chandler 1901-6-1 1410 Humboldt Kalmath River 304 Comment
  CAS-BOT-BC9954  Delphinium nudicaule Doris K. Kildale 1928-6-24 5288 Humboldt Horse Mountain 853 Comment
  CAS-BOT-BC9959  Delphinium nudicaule Volney Rattan 1879-1-1 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC121960  Delphinium trolliifolium Doris K. Kildale 1927-5-15 3300 Humboldt Petrolia Comment
  CAS-BOT-BC121974  Delphinium trolliifolium Alice Eastwood; John Thomas Howell 1937-6-23 4770 Humboldt Near Dinsmore's Comment
  JEPS23302  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  UC595124  Deschampsia cespitosa subsp. beringensis David D. Keck 1938-8-5 4773 Humboldt Big Lagoon Comment
  UC922026  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1942-6-15 17128 Humboldt near Redcrest resort Englewood 91 Comment
  HSC27023  Deschampsia cespitosa subsp. holciformis Brad W. Klipfel 1973-8-17 274 Humboldt Big Lagoon Park, at the Sphagnum bog. Comment
  CAS-BOT-BC201769  Deschampsia elongata H. E. Parks 1931-5-1 3646 a Humboldt Big Lagoon Comment
  HSC58402  Deschampsia elongata Griswold, Butler 1979-7-11 7035 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC9612  Deschampsia elongata E. W. Styskel 1964-5-10 86 Humboldt 1.5 mi. SE of Redcrest along Hwy. 101 Comment
  JEPS72936  Deschampsia elongata Lincoln Constance 1934-5-31 747 Humboldt along Bull Creek from w. boundary of Park to Grasshopper Peak (Bull Creek Flat, Squaw Cr. rd., n. side of creek); Bull Creek Region, S. Fork Eel River Comment
  UC187266  Deschampsia elongata Joseph P. Tracy 1911-7-5 3316 Humboldt near its mouth (a tributary of Trinity R.) Willow Creek; Northern Coast Ranges, Willow Creek 243 Comment
  HSC8357  Dicentra formosa D. A. Shally 1965-5-15 51 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  UCR179275  Dicentra formosa R. G. Swinney 1968-3-28 237 Humboldt East of Humboldt State College, Arcata 152 Comment
  CAS-BOT-BC402408  Dicentra formosa subsp. formosa Joseph P. Tracy 1933-7-16 12794 Humboldt North Coast Ranges. South Fork Mt. 1676 Comment
  CAS-BOT-BC208956  Dichanthelium oligosanthes subsp. scribnerianum Joseph P. Tracy 1927-8-7 8314 Humboldt Willow Creek, Trinity River Valley 152 Comment
  JEPS5679  Dichelostemma ida-maia Milo S. Baker 1923-7-20 47 b Humboldt near head of Yager Creek Comment
  UC535761  Dichelostemma ida-maia Eleanor Armstrong 1934-5-17 Humboldt n of Redway Comment
  CHSC1743  Digitalis purpurea M. Anthony 1960-5-14 Humboldt N. of Arcata, Highway 101. Comment
  UC535744  Digitalis purpurea Eleanor Armstrong 1174 Humboldt Richardson Grove Comment
  UC1409176  Dipsacus fullonum Robert F. Thorne and P. Everett 1965-8-9 35282 Humboldt 2.5 mi n Arcata Comment
  HSC62879  Dipsacus fullonum J. M. DiTomaso 1979-5-20 1042 Humboldt Arcata, Hwy. 101 at Guintoli Rd. Comment
  UCR179281  Disporum smithii R. G. Swinney 1968-3-28 234 Humboldt East of Humboldt State College, Arcata 152 Comment
  UC1046562  Dodecatheon jeffreyi R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3418 Humboldt ridge between Mad River and Redwood Creek (edge of meadow at Snow Camp, Bald Mountain); ridge btw Mad River and Redwood Creek, Bald Mt, Snow Camp 1432 Comment
  JEPS14452  Downingia elegans Joseph P. Tracy 1923-6-20 6339 Humboldt Miranda 121 Comment
  POM175550  Downingia elegans var. corymbosa F. W. Peirson 1923-7-10 3871 Humboldt About 6 miles N of Garbersville. 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
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt Comment
  UC154226  Drymocallis glandulosa var. glandulosa Joseph P. Tracy 1908-6 2744 Humboldt nw slope of Buck Mountain Northern Coast Ranges, Buck Mountain 762 Comment
  HSC58089  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-8-1 11998 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CAS-BOT-BC70871  Dryopteris arguta Doris K. Kildale 1926-7-22 2415 Humboldt near Canyon Park Comment
  JEPS337  Dryopteris arguta Wm. K. D. Reynolds August, 1933 Humboldt Riceland Comment
  UCSB29333  Dryopteris arguta Phelps, M. 1972-3-20 Humboldt Near Somerville homestead, Elk Ridge. 609 Comment
  JEPS4047  Dryopteris expansa Roland A. Dede 1952-12-6 2834 Humboldt Ferndale Comment
  JEPS49929  Dudleya farinosa W. L. Jepson 1902-8-4 2144 Humboldt Cape Mendocino 1 Comment
  JEPS19330  Eleocharis bella Joseph P. Tracy 1935-7-27 14299 Humboldt McKay Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC112839  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  UC1103654  Eleocharis obtusa Joseph P. Tracy 1938-8-14 16106 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  UC1103649  Eleocharis parishii Joseph P. Tracy 1938-8-14 16116 Humboldt S Fork, on mountain slope W of river mouth Trinity River 304 Comment
  UC249740  Eleocharis parvula Joseph P. Tracy with H. E. Parks 1924-8-3 6744 Humboldt Stone Lagoon 6 Comment
  CAS-BOT-BC451520  Elodea canadensis Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC76198  Elymus glaucus Overton, Butler 1979-8-2 12509 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC9713  Elymus glaucus D. E. Anderson 1965-5-15 3718 Humboldt Along Hwy. 96, 1.9 miles N of Willow Creek. Comment
  RSA129235  Elymus glaucus H. S. Yates 1936-6-17 5705 Humboldt South Fork Pk.; Lower N.W. slope of Buck Mt. 793 Comment
  HSC99475  Elymus glaucus subsp. glaucus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 131 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC10936  Elymus mollis subsp. mollis J. W. Johnson 1962-4-29 1297 Humboldt W.M Lanphere Farm, Samoa Peninsula, Arcata. Comment
  UC187090  Elymus multisetus Joseph P. Tracy 1908-6 2691 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1103473  Elymus trachycaulus Joseph P. Tracy 1936-7-10 15047 Humboldt Wilder's place Vicinity of Carlotta 30 Comment
  SEINET200933  Elymus trachycaulus subsp. trachycaulus J. P. Tracy 1912-7-27 3885 Humboldt Kneeland prairie 762 Comment
  SBBG52991  Epilobium J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  CDA21306  Epilobium angustifolium subsp. circumvagum D. Kratville 2007-7-1 PDR 1426134 Humboldt North Coast; Stone Lagoon State Park, Hwy 101, Orick. 0 Comment
  HSC54564  Epilobium brachycarpum Overton, Butler 1979-7-24 9583 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC64759  Epilobium brachycarpum Bruce Gordon 1978-8-8 125 Humboldt Redwood National Park, 40 m SW of Bald Hills Rd. about .6 mi. NW of junction of Bald Hills Rd. and K & K Rd. 716 Comment
  RSA46782  Epilobium canum subsp. latifolium Doris Kildale Gillespie 1937-8-12 15255 Humboldt South Fork Mountain. Comment
  HSC101058  Epilobium ciliatum John McRae 1997-7-2 240 Humboldt Near south portion of Lassics Botanical Area; Van Duzen Rd off Hwy. 36 to Forest Service Rd. 1S07, west on FS Rd. 2S08 to 2S08C, ~ 5 mi. further 1555 Comment
  HSC54584  Epilobium ciliatum subsp. ciliatum Overton, Butler 1979-7-24 9638 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC74754  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-6 2398 Humboldt Near Humbug Creek 1256 Comment
  UC146138  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1909-8-15 3075 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA755161  Epilobium ciliatum subsp. glandulosum Robert F. Thorne, P. Everett 1965-8-9 35347 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  RSA181880  Epilobium foliosum Joseph P. Tracy 1928-5-6 8430 Humboldt Northern Coast Ranges: Trinity River Valley, at Willow Creek 152 Comment
  HSC76622  Epilobium minutum Denis Kearns 1981-7-22 322 Humboldt Near Whiteys Peak. 1487 Comment
  RSA249432  Epilobium minutum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5598 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  SEINET6944762 Image available Epilobium minutum W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  SEINET10632322  Epilobium oreganum Chestnut 1888-7-28 CHESTNUT s.n. Humboldt Grouse Creek, streams F Comment
  POM168220  Epipactis gigantea Jos Burtt Davy, Walter C. Blasdale 1899-6-28 5895 Humboldt North Coast Ranges: Klamath River near Martins Ferry Comment
  POM232041  Epipactis gigantea I. L. Wiggins 1930-7-8 4677 Humboldt Sandstone cliffs along the Eel River, near Scotia Comment
  SEINET8716289 Image available Epipactis gigantea Joseph P. Tracy 1949-1 18335 Humboldt Blue slide, on Van Dunzen River. Altitude 300 feet. 91 Comment
  HSC97438  Equisetum hyemale subsp. affine Ivy Watson 2008-10-11 59 Humboldt Near Mad River mouth, S bank, about 500 ft. from river 9 Comment
  HSC99646  Equisetum laevigatum R. W. Becking 1984-4-3 Humboldt Samoa, N Spit, US Coast Guard dunes 3 Comment
  HSC882  Equisetum telmateia subsp. braunii D. E. Anderson 1962-2-10 1920 Humboldt 1.5 mi. S of Trinidad Comment
  UC526938  Equisetum telmateia subsp. braunii Joseph P. Tracy 1934-6-28 13268 Humboldt by Salmon Creek Northern Coast Ranges 9 Comment
  RSA638987  Erechtites glomeratus R. F. Thorne, Percy C. Everett 1965-8-8 35239 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  SEINET10618699  Erechtites glomeratus Harold E. Parks, Susan T. Parks Parks 24033 Humboldt Spruce Cove, Trinidad. 61 Comment
  UC1198997  Eremocarpus setiger Joseph P. Tracy 1948-9-20 18219 Humboldt Hoopa Valley 121 Comment
  CHSC102880  Erica lusitanica Peter F. Zika 2008-10-19 24226 Humboldt North Coast. Thickets on w-facing banks above highway, E side of Route 101, near Exit 731 for Seawood Drive. 100 Comment
  CAS-BOT-BC293486  Erigeron aliceae L. B. Kildale 1930-8-10 10529 Humboldt Snow Camp, head of Redwood Creek Comment
  UC1223139  Erigeron foliosus var. confinis Joseph P. Tracy 1950-8-8 19291 Humboldt area Granite Rock; Trinity Summit, Crogan Hole 1676 Comment
  CAS-BOT-BC300675  Erigeron foliosus var. mendocinus Doris K. Kildale 1927-6-25 3585 Humboldt Near Ettersburg Comment
  POM261503  Erigeron glaucus S. K. Harris 1936-6-15 3380 Humboldt Trinidad Head Comment
  RSA636111  Erigeron glaucus R. F. Thorne 1974-7-29 45079 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  UC581715  Erigeron inornatus var. inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  HSC97812  Erigeron maniopotamicus Cara Witte 2007-6-22 339 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  CAS-BOT-BC214581  Erigeron philadelphicus Volney Rattan No date on label s.n. Humboldt Mad River Comment
  CAS-BOT-BC214585  Erigeron philadelphicus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC214583  Erigeron philadelphicus Doris K. Kildale 1926-5-31 2023 Humboldt Miranda on South Fork of Eel River Comment
  JEPS41378  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1934-5-7 16688 Humboldt Bull Creek Comment
  JEPS57404  Erigeron philadelphicus var. philadelphicus L. R. Heckard with T. I. Chuang 1968-7-4 1980 Humboldt n end Big Lagoon Comment
  UC1223008  Erigeron robustior Joseph P. Tracy 1951-6-26 19585 Humboldt extreme head of Redwood Creek; , Board Camp Mountain Comment
  UC1223011  Erigeron robustior Joseph P. Tracy 1942-7-4 17371 Humboldt 2 mi w McClellan House (at Camp Desparation near the old Sweany place); McClellan Mountain 609 Comment
  UC1199400  Erigeron strigosus var. septentrionalis Joseph P. Tracy 1935-7-9 14057 Humboldt opposite Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC224259  Eriodictyon californicum P. C. Everett; E. K. Balls 1959-10-24 23953 Humboldt 2.8 mi. sw. from Siskiyou-Humboldt Co. line, Somesbar to Orleans 198 Comment
  HSC24402  Eriodictyon californicum J. O. Sawyer 1970-6-24 2224 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC48395  Eriodictyon californicum Brad Klipfel 1973-6-10 149 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA256584  Eriodictyon californicum D. E. Anderson 1972-6-20 5737 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  CAS-BOT-BC259161  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  CAS-BOT-BC259163  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  LA206936  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  UC1198150  Eriogonum latifolium Joseph P. Tracy 1938-6-17 15960 Humboldt near ocean shore (s of point of Cape); Cape Mendocino 3 Comment
  UC727179  Eriogonum latifolium A. A. Heller 1924-7-22 13873 Humboldt Samoa Comment
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Sep 29 2006
  HSC17292  Eriogonum latifolium D. E. Anderson 1962-7-4 2248 Humboldt Luffenholtz Beach 5 mi. S of Trinidad along old Hwy. 101, 2 mi. N of mouth of Little River Comment
  SEINET10479505  Eriogonum latifolium Mary Susan Taylor 1982-10-24 Taylor 5180 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC1222341  Eriogonum latifolium Joseph P. Tracy June 1950 18754 Humboldt near ocean shore (s of point of Cape; Devil's Gate); Cape Mendocino, Devil's Gate 3 Comment
  UC672913  Eriogonum latifolium Joseph P. Tracy 1927-6-18 8175 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  JEPS56604  Eriogonum nudum var. oblongifolium W. L. Jepson 1932-8-8 16484 Humboldt Grasshopper Peak, Canoe Creek 1066 Comment
  UC176714  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1912-7-21 3757 Humboldt Alton 30 Comment
  SD22520  Eriogonum nudum var. oblongifolium Susan G. Stokes 1932-7-13 Humboldt From Garberville to Eureka Comment
  HSC74698  Eriogonum umbellatum Gail Newton 1981-7-24 2291 Humboldt Near Chaparral Mtn. 1512 Comment
  JEPS56193  Eriogonum umbellatum var. argus W. L. Jepson 1902-7-25 2119 Humboldt Trinity Summit Comment
  UC1225801  Eriogonum umbellatum var. argus Joseph P. Tracy 1947-7-5 17781 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  CAS-BOT-BC435540  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along USFS Rd 1 at S end of Whiting Ridge, about 0.5 air mi WNW of High Salt Ground and 9.3 air mi W of Hyampom 1295 Comment
  UC672897  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1933-7-25 12881 Humboldt Grouse Mountain 1524 Comment
  JEPS56129  Eriogonum vimineum W. L. Jepson 1932-7-25 16395 Humboldt Old Camp Grant Eel River, Old Camp Grant Comment
  HSC58062  Eriophorum crinigerum G. L. Clifton, Griswold 1979-8-1 11939 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1692 Comment
  HSC35819  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1915 Humboldt Beside Hwy. 36, 1 mi. W of Grizzley Creek Comment
  HSC40042  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2895 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC35935  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2028 Humboldt French Camp, Bald Hills. Comment
  UC1223133  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1950-5-24 18696 Humboldt Cummings Post Office Comment
  CAS-BOT-BC301181  Eriophyllum lanatum var. arachnoideum Doris K. Kildale 1927-6-25 3541 Humboldt Shelter Cove Comment
  CAS-BOT-BC301183  Eriophyllum lanatum var. arachnoideum Frank W. Peirson 1926-7-12 7029 Humboldt West slope Coast Range back of Orick Comment
  HSC67897  Eriophyllum lanatum var. arachnoideum J. P. Smith 1973-5-26 6839 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CAS-BOT-BC301389  Eriophyllum lanatum var. grandiflorum L. R. Abrams 1918-6-16 7154 Humboldt Willow Creek Comment
  UC1199144  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1939-4-29 16250 Humboldt near mouth of Slate Creek; Klamath River 121 Comment
  UC709446  Erodium brachycarpum Joseph P. Tracy 1941-4-11 16918 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC176874  Erodium cicutarium Joseph P. Tracy 1912-6-9 3675 Humboldt Alton Northern Coast Region 30 Comment
  UC183763  Erodium moschatum Joseph P. Tracy 1912-5-30 3640 Humboldt Eureka Northern Coast Region 0 Comment
  SEINET12118220  Eryngium aristulatum J. P. Tracy 1912-1 3777 & 4001 Humboldt Alton 91 Comment
  HSC99491  Erysimum capitatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 150 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
  HSC6787  Erysimum menziesii J. R. Woodside 1963-3-10 40 Humboldt 1.25 mi. N of Fairhaven. Comment
  RSA0008583  Erysimum menziesii Vernon H. Oswald 2000-4-3 9911 Humboldt Near the junction of New Navy Base Road and the road to Fairhaven on the North Spit of Humboldt Bay. 9 Comment
  SEINET8371203  Erythranthe dentata L. F. Henderson 1933-5-27 15635 Humboldt Arcata-Redding road. Comment
  UC3606  Erythronium californicum C. C. Marshall April, 1888 Humboldt Hoopa Valley Comment
  HSC104422  Erythronium grandiflorum Sydney Carothers 2004-5-31 42 Humboldt Grouse Mountain; back side of Grouse Mtn., slope above Forest Service Rd. 5NO4, below summit 1610 Comment
  HSC15502  Erythronium revolutum Paul Shields May 1955 Humboldt Kneeland Comment
  UC169914  Eschscholzia californica Harley P. Chandler June, 1901 1538 Humboldt Klamath River North Coast Ranges 457 Comment
  UC581737  Eucephalus ledophyllus Joseph P. Tracy 1932-7-15 10601 Humboldt ridges e of Corral Prairie; Trinity Summit 1828 Comment
  CAS-BOT-BC310490  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  UC1223111  Euchiton sphaericus Joseph P. Tracy 1947-9-28 17933 Humboldt Park's place Trinidad 3 Comment
  POM292452  Euchiton sphaericus Lyman Benson 1929-7-16 1831 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  HSC100937  Euonymus occidentalis Miss Handy Jun 1886 335 Humboldt Maple Cr. Comment
  POM208999  Euonymus occidentalis Lincoln Constance 1934-6-11 855 Humboldt Cabin Creek bridge on Dyerville-Bull Creek Flat road. Humboldt Redwood Park. 52 Comment
  HSC99515  Euonymus occidentalis var. occidentalis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 178 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC165017  Eurybia radulina Joseph P. Tracy 1909-9-12 3082 Humboldt region about Humboldt Bay, Humboldt Hill Humboldt Bay, Humboldt Hill 152 Comment
  SEINET4206010  Fallopia convolvulus Chesnut, Drew 1888-7-25 s.n. Humboldt Grouse Creek Comment
  UC1607839  Festuca Joseph P. Tracy and Harold E. Parks 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  UC53434  Festuca californica unknown 1896-6-9 Humboldt South Fork Mts. Northern Coast Ranges Comment
  CAS-BOT-BC282499  Festuca elmeri Joseph P. Tracy; H. E. Parks 1934-6-27 11045 Humboldt Horse Mountain 1524 Comment
  UCD65940  Festuca elmeri R. Tofsrud 1947-7-1 204 Humboldt Between Alder Point and Zinea. Comment
  UC525635  Festuca idahoensis Joseph P. Tracy 1930-7-10 8867 Humboldt Brannan Mountain North Coast Ranges 1219 Comment
  SEINET200326  Festuca myuros J. P. Tracy 1914-5-14 4432 Humboldt Northern Coast Ranges Fort Seward. 122 Comment
  HSC70661  Festuca occidentalis Gail Newton 1980-7-14 1544 Humboldt Near Deadman Ridge 1097 Comment
  HSC9950  Festuca occidentalis E. W. Styskel 1964-5-8 83 Humboldt 2 mi. W of Rio Dell on Blue Slide Rd. Comment
  RSA123495  Festuca occidentalis H. S. Yates 1936-6-17 5700 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  POM313227  Festuca rubra Malcolm A. Nobs, S. Galen Smith 1949-8-3 1171 Humboldt Around Field's Landing. Comment
  HSC38631  Festuca viridula D. E. Anderson, J. P. Smith 1971-6-14 - 1050 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  HSC89431  Fragaria X ananassa P. A. Daly 1984-5-8 8 Humboldt Trinidad Head. 61 Comment
  BLMAR152  Frangula californica subsp. californica Donald Hazlett 1994-6-7 152 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC52741  Frangula californica subsp. californica Doris K. Kildale 1926-6-13 2162 Humboldt Briceland Bridge 1/2 west of Garberville. 114 Comment
  CAS-BOT-BC53405  Frangula californica subsp. occidentalis Carl B. Wolf 1931-8-30 2377 Humboldt Lord Ellis Road, 9 mi. above Willow Creek on grade from Willow Creek to Blue Lake 304 Comment
  SEINET11248085  Frangula purshiana W. D. Billings 1940-6-28 1354 Humboldt 1/4 mile N. of Trinidad Comment
  HSC15541  Fritillaria affinis Elrid H. Spinas 1948-6-16 68 Humboldt Horse Mtn. Comment
  RSA90636  Fritillaria affinis Ralph Lewis 1936-4-10 s.n. Humboldt Along Redwood Highway, first bridge south of Cummings Comment
  CAS-BOT-BC124019  Fritillaria purdyi Carlton Elmer Purdy 1901-4-1 s.n. Humboldt Kneeland Comment
  HSC67208  Fritillaria recurva Thomas W. Nelson, James Nelson 1980-6-10 5436 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC100647  Galium Carl C. Marshall 76 Humboldt No data. Comment
  UC1196095  Galium aparine Joseph P. Tracy 1935-7-23 14166 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC19793  Galium aparine Joel W. Reinhard 1966-4-30 29 Humboldt N of College Cove Comment
  JEPS25681  Galium aparine P. C. Hutchison 1961-5-21 2005 B Humboldt US Hwy 101 1/4 mi s Holbrook Grove boundary (1/2 mi n of Redway, 3 1/4 mi n of Garberville, rocks e of hwy facing nw) 167 Comment
  JEPS6512  Galium bifolium Joseph P. Tracy 1933-7-16 12778 Humboldt near McKay Camp; South Fork Mt. 1676 Comment
  HSC97949  Galium bolanderi Cara Witte 2007-6-26 352 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1388 Comment
  JEPS52864  Galium californicum subsp. californicum Lauramay T. Dempster and Jean Colton 1963-8-7 3889 Humboldt Redwood Hwy (101) just n Richardson Grove Comment
  UC602540  Galium californicum subsp. californicum Joseph P. Tracy 1927-5-30 8085 Humboldt between Briceland and Redway 182 Comment
  UC1225914  Galium divaricatum Joseph P. Tracy 1946-7-13 17614 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  HSC41336  Galium muricatum Brad Klipfel 1974-9-7 564 Humboldt Horse Mtn. Comment
  HSC36248  Galium muricatum Thomas W. Nelson, Jane P. Nelson 1976-2-21 2243 Humboldt Beside the Hoopa-Redwood Valley Rd., 2.5 mi. W of Hoopa Comment
  SEINET7722393  Galium nuttallii Chesnut, Drew Humboldt S. Fork Mt. Comment
  UC602521  Galium porrigens var. porrigens Joseph P. Tracy 1924-8-10 6816 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC61962  Galium triflorum Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  BLMAR268  Gamochaeta ustulata Jennifer Anthony-Wheeler 1999-6-16 268 Humboldt Headwaters Forest Reserve, Disturbed or wasted areas 463 Comment
  CAS-BOT-BC303390  Gamochaeta ustulata Joseph P. Tracy 1936-5-30 14834 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  HSC78975  Gamochaeta ustulata L. P. Janeway, Paul Wilson 1984-5-25 830 Humboldt On the N Spit of Humboldt Bay; on BLM lands near the Coast Guard Station 5 Comment
  RSA638992  Gamochaeta ustulata R. F. Thorne 1974-7-29 45067 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  HSC56945  Garrya buxifolia Overton, Butler 1979-7-23 9435 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC73064  Garrya buxifolia M. A. Baker 1980-6-16 1949 Humboldt Near Onion Mtn. 1280 Comment
  UC1196891  Garrya buxifolia Joseph P. Tracy 1933-7-11 12676 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC188534  Garrya elliptica Joseph P. Tracy 1943-6-18 17441 Humboldt Bank of Big Lagoon 6 Comment
  CAS-BOT-BC188540  Garrya elliptica Alice Eastwood 1907-4-21 18 Humboldt Port Trinidad Comment
  UC162337  Garrya elliptica J. P. Tracy 1911-10-22 3549 Humboldt immediate vicinity Eureka 0 Comment
  SEINET12137511  Garrya elliptica M. S. Taylor 1982-1 5181 Humboldt Samoa, under bridge, ca 1 mi NW of Eureka Comment
  UCD121122  Garrya flavescens M. Wiesendanger 1928-4-7 932 Humboldt Near Blue Lakes. Comment
  CAS-BOT-BC182144  Garrya fremontii S. Matthews; M. Goering; R. James 1985-5-10 058 Humboldt unspecified 1143 Comment
  OBI14160  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow crk Comment
  UC604656  Gaultheria ovatifolia Joseph P. Tracy 1938-9-25 16168 Humboldt Bald Mountain, at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  CHSC19736  Gaultheria shallon Gary J. Stebbins 1970-2-2 4 Humboldt Along U.S. 101 across from Patricks Point State Park. 38 Comment
  HSC31633  Gaultheria shallon Glenn McGourty 1974-4-27 19 Humboldt Along rd. 1 mi. from Capetown bridge Comment
  HSC41340  Gaultheria shallon Brad Klipfel 1974-9-7 560 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  HSC59055  Gaultheria shallon Thomas Wood 1979-5-4 155 Humboldt Big Lagoon Bog 2 Comment
  HSC69579  Gaultheria shallon R. Kalal 1980-6-1 6 Humboldt S side Essex Pond 18 Comment
  HSC7809  Gaultheria shallon D. A. Shally 1965-5-15 44 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  POM247151  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt North Coast Ranges: Grouse Mountain 1524 Comment
  UC202459  Gayophytum heterozygum Joseph P. Tracy 1919-9-18 5248 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  JEPS47044  Gentiana affinis var. ovata Joseph P. Tracy 1930-7-27 9110 Humboldt Bear River Ridge North Coast Ranges 609 Comment
  JEPS47053  Gentianopsis simplex Joseph P. Tracy 1919-9-22 5275 Humboldt Trinity Summit 1828 Comment
  UC1197397  Geranium bicknellii Joseph P. Tracy 1949-8-4 18422 Humboldt Mud Springs Trinity Summit 1341 Comment
  UC1197396  Geranium carolinianum Joseph P. Tracy 1929-5-5 8558 Humboldt Miranda, along South Fork of Eel River Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC275493  Geranium dissectum Joseph P. Tracy 1925-5-17 6977 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC89415  Geranium molle P. A. Daly 1986-3-12 103 Humboldt Trinidad Head 61 Comment
  JEPS69518  Gilia capitata subsp. capitata Joseph P. Tracy 1935-6-23 13995 Humboldt French Camp Ridge 1066 Comment
  UC1197929  Gilia capitata subsp. capitata Joseph P. Tracy 1908-6 2751 Humboldt nw slope of Buck Mountain , nw slope Buck Mountain (Northern Coast Ranges) 457 Comment
  CAS-BOT-BC226147  Gilia capitata subsp. pacifica Doris K. Kildale 1925-6-28 1372 Humboldt Kneeland Prairie - bald hills 762 Comment
  HSC24654  Gilia capitata subsp. pacifica R. E. Jones 1966-5-13 50 Humboldt Cape Mendocino 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
  HSC16989  Gilia millefoliata J. R. Woodside 1963-5-19 3 Humboldt 1 1/4 mi. N of Fairhaven Comment
  HSC95589  Gilia millefoliata Andrea Pickart 2002-5-20 105 Humboldt Manila Dunes, near Manila Community Services District treatment area 15 Comment
  CAS-BOT-BC123798  Gilia millefoliata var. maritima Harley Pierce Chandler 1901-5-1 1135 Humboldt North Coast Ranges, Humboldt Bay 3 Comment
  HSC16986  Gilia tricolor J. E. Lankila 1962-5-6 26 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  UC1602182  Githopsis specularioides Harley P. Chandler Jun 1901 1345 Humboldt Hupa Reservation North Coast Ranges 152 Comment
  HSC93766  Glyceria declinata Gordon Leppig 1996-5-5 329 Humboldt Arcata, Healthsport parking lot of Union St. 2 Comment
  UC187286  Glyceria elata Joseph P. Tracy 1911-7-7 3372 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC207736  Glyceria elata Joseph P. Tracy 1916-6-25 4748 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges, Redwood Creek 152 Comment
  UC1103751  Glyceria striata Joseph P. Tracy 1903-6-14 1922 Humboldt Eureka; Northern Coast Region 0 Comment
  SEINET11849414  Gnaphalium microcephalum var. thermale J. P. Tracy 1948-1 18184 Humboldt near Elk Camp on Grizzly Camp Road, Trinity Summit, on ridge 2 mi E of Grove's Prairie 1524 Comment
  CAS-BOT-BC302538  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-7-1 24026 Humboldt Spruce Cove, Trinidad Comment
  HSC98114  Gnaphalium palustre Cara Witte 2007-6-21 338 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  UC1222817  Gratiola ebracteata Joseph P. Tracy 1951-6-21 Humboldt bed of former Goose Lake (Hydesville, back of the Everett Beck house (formerly George Gray's)); bed of former Goose Lake Comment
  CAS-BOT-BC304738  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1936-7-3 3781 Humboldt Eureka Comment
  CAS-BOT-BC304761  Grindelia hirsutula Carl B. Wolf 1927-8-29 1214 Humboldt Devil's Gate, south of Cape Mendocino Comment
  CAS-BOT-BC304763  Grindelia hirsutula C. L. Hitchcock; J. S. Martin 1939-7-14 5437 Humboldt At Shelter Cove Comment
  HSC37504  Grindelia hirsutula J. D. Ackerman 1975-8-2 613 Humboldt Hwy. 101 between Arcata and Eureka. Humboldt Bay across from Murray Field Comment
  HSC49096  Grindelia hirsutula Patricia Shesgreen 1978-7-30 119 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  JEPS35820  Grindelia hirsutula Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8967 Humboldt 9.5 mi by road nw Petrolia (s of Cape Mendocino, in coastal scrub just back of beach) Comment
  JEPS41875  Grindelia hirsutula W. L. Jepson 1902-8-4 2145 Humboldt seashore Capetown to Petrolia 3 Comment
  POM253560  Grindelia hirsutula C. L. Hitchcock, J. S. Martin 1939-7-14 5437 Humboldt Bluffs facing sea at Shelter cove Comment
  SEINET194315  Grindelia hirsutula var. davyi A. A. Heller 1923-7-7 13764 Humboldt Near the South Fork of the Eel River S of Garberville Comment
  CHSC31291  Grindelia stricta var. stricta Mark Stopher 1980-7-11 113 Humboldt Elk River mitigation site, in lower portions of site and in marsh. 1 Comment
  JEPS67940  Hackelia bella H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout; South Fork Mountain Comment
  UC1222252  Hackelia californica Joseph P. Tracy 1948-8-15 18154 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity nSummit 1524 Comment
  SEINET11678982  Hainardia cylindrica J. P. Tracy 1938-1 16071 Humboldt mouth of Eel River 3 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-BC508214  Hastingsia alba Bolander 1867-6-1 s. n. Humboldt Swamps, Red Mtns. Comment
  RSA377548  Hastingsia alba Brad W. Klipfel 1973-7-1 116 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  CAS-BOT-BC158026  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt Blue Slide on Van Duzen River 91 Comment
  SEINET2166159  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt Blue SLide, on Van Duzen River. Comment
  UC630634  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt on Van Duzen R. Blue Slide 91 Comment
  HSC76206  Helenium bigelovii Overton, Butler 1979-8-2 12532 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  CAS-BOT-BC306867  Helenium bolanderi L. R. Abrams 1916-7-18 6078 Humboldt Arcata to Trinidad Comment
  SD42503  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. Comment
  UC1223171  Helminthotheca echioides Joseph P. Tracy 1948-8-8 18098 Humboldt 2 mi w Bridgeville Comment
  UC718391  Hemizonella minima C. B. Wolf 1934-9-2 5861 Humboldt e Korbel; Snow Camp 914 Comment
  UC275464  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt near the s fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 304 Comment
  JEPS28965  Hemizonia congesta subsp. tracyi Joseph T. Gregory 1932-6-19 184 Humboldt n slope Buck Mountain Comment
  UC1199373  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1921-6-12 5817 Humboldt Kneeland Prairie 762 Comment
  JEPS23492  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1908-6 2754 Humboldt opposite Buck Mountain; Valley of Van Duzen River 762 Comment
  SD53245  Heracleum maximum Darley F. Howe 1962-5-22 3301 B Humboldt 0.5 miles north of Orick on # 101 29 Comment
  UC1198758  Heteromeles arbutifolia Joseph P. Tracy 1907-8-20 2602 Humboldt near Hydesville (on Yager Creek); Northern Coast Region 60 Comment
  HSC101543  Heterotheca oregona var. compacta J. P. Smith, J. O. Sawyer 2009-8-3 12643 Humboldt Along the Eel River. 23 Comment
  UC480921  Heterotheca oregona var. compacta Harley P. Chandler 1901-6-1 1430 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  BLMAR246  Heuchera Jennifer Anthony-Wheeler 1997-7-24 246 Humboldt Lacks Creek, growing along W side of rd in rocky/cliff area 1219 Comment
  HSC44335  Heuchera micrantha Brad Klipfel 1975-6-17 676 Humboldt Horse Mtn. Comment
  UC154083  Heuchera micrantha var. diversifolia Joseph P. Tracy 1908-6 2865 Humboldt Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges 762 Comment
  UC902002  Heuchera micrantha var. diversifolia Joseph P. Tracy 1947-5-10 17682 Humboldt Garberville, near airport Garberville 152 Comment
  UC902009  Heuchera micrantha var. macropetala Joseph P. Tracy 1948-8-15 18139 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC55746  Heuchera rubescens G. L. Clifton, Griswold 1979-7-26 10269 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CAS-BOT-BC312391  Hieracium albiflorum Doris K. Kildale 1928-6-24 7078 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC312393  Hieracium albiflorum Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC312395  Hieracium albiflorum W. R. Dudley 1899-6-19 s.n. Humboldt Scotia Comment
  HSC41261  Hieracium albiflorum Brad Klipfel 1974-7-23 453 Humboldt Horse Mountain, NW from the towers Comment
  HSC48819  Hieracium albiflorum Brad Klipfel 1973-7-31 232 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56932  Hieracium albiflorum G. L. Clifton, Butler 1979-7-26 9368 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  SBBG8341  Hieracium albiflorum H. and M. Dearing 1939-5-24 3414 Humboldt Redwood Hwy, S of Dyerville Comment
  UC127712  Hieracium albiflorum Harley P. Chandler Jun 1901 1496 Humboldt Klamath River North Coast Ranges 426 Comment
  UCD133133  Hieracium albiflorum Linda M. Barker 1976-6-14 1591 Humboldt 3 miles west of Arcata. Comment
  BLMAR738  Hieracium albiflorum Jennifer Wheeler 2015-5-12 738 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  HSC44097  Hieracium albiflorum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3706 Humboldt Beside road 2S08 at Alder Spring 1585 Comment
  HSC5829  Hieracium albiflorum H. E. Parks, J. P. Tracy 1930-9-14 768 Humboldt Bald Hills, near Kneeland Comment
  HSC95113  Hieracium albiflorum Andrea Pickart 2002-6-30 130 Humboldt Lamphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  UC302190  Hieracium bolanderi Joseph P. Tracy 1926-6-20 7638 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC57131  Hieracium greenei Overton, Butler 1979-7-25 9903 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  UC582411  Hieracium greenei Joseph P. Tracy 1935-7-30 14358 Humboldt Salmon Summit 1767 Comment
  SEINET200705  Hierochloe occidentalis Joseph P. Tracy 1931-4-26 9342 Humboldt Willow Creek Canyon 610 Comment
  HSC26474  Hippuris vulgaris John R. Keith 1973-5-9 Humboldt 300 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  HSC69757  Hippuris vulgaris Thomas W. Nelson 1977-9-22 3750 Humboldt Along E side of State Rte. 101, N of Eureka airport Comment
  UC1191968  Hippuris vulgaris Malcolm A. Nobs and S. Galen Smith 1949-8-3 1191 Humboldt marsh & bog land at southern outskirts Eureka Comment
  UC492249  Hirschfeldia incana Joseph P. Tracy 1931-5-21 9434 Humboldt Eel River, Alton to Fortuna Eel River; Northern Coast Region, Eel River 15 Comment
  CAS-BOT-BC280740  Holcus lanatus Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River, near Boyce [Boise] Creek, Orleans region Comment
  HSC10127  Holcus lanatus True Hoyle 1967-6-24 25967 Humboldt 20 mi. S of Arcata near Little Salmon Creek on the Marvin Stapp Ranch 46 Comment
  HSC10132  Holcus lanatus J. R. Eichelberger 1964-5-13 83 Humboldt 1/4 mile from U.S. 101 on the N side of the Mad River. Comment
  HSC10139  Holcus lanatus W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus behind biological science building, near baseball field. Comment
  POM352401  Holcus lanatus Edith A. Purer 1932-7-30 16085 Humboldt South of Orick. Comment
  SBBG83770  Holcus lanatus J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  CAS-BOT-BC149905  Holodiscus discolor Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC75944  Holodiscus discolor Overton, Butler 1979-7-24 9705 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC555558  Holodiscus discolor H. L. Mason 1928-7-14 4905 Humboldt East Fork of Eel River near Garberville; East Fork of Eel River Comment
  UC666850  Holodiscus discolor Joseph P. Tracy 1933-8-30 13031 Humboldt Grouse mountain 1524 Comment
  HSC22746  Hordeum marinum subsp. gussoneanum D. E. Anderson 1970-6-14 5124 Humboldt 2 mi. E of Mad River Bridge in Butler Valley. Comment
  JEPS72937  Hordeum marinum subsp. gussoneanum Lincoln Constance 1934-5-29 722 Humboldt Upper Look Prairie Bull Creek Region, South Fork Eel River, Upper Look Prairie (South Fork Eel River, Bull Creek Region) 365 Comment
  RSA123425  Hordeum marinum subsp. gussoneanum H. S. Yates 1936-6-17 5710 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC38634  Hordeum marinum subsp. gussoneanum Harley P. Chandler 1901-6-1 1431 B Humboldt Klamath River North Coast Ranges, Klamath River 335 Comment
  UC552789  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1935-5-25 13866 Humboldt Fort Seward 106 Comment
  HSC104047  Hordeum murinum subsp. murinum Kyle Brown Apr 2015 31 Humboldt Along trail at Ma-le'l Dunes 3 Comment
  UC902136  Horkelia californica Joseph P. Tracy 1949-7-7 18332 Humboldt Table Bluff Ridge 91 Comment
  UC1198711  Horkelia californica Joseph P. Tracy 1930-6-15 8755 Humboldt n Dobbyn Creek; Northern Coast Ranges 152 Comment
  CAS-BOT-BC144081  Horkelia sericata Harley P. Chandler 1901-6-1 1543 Humboldt Klamath RIver 426 Comment
  CAS-BOT-BC537899  Horkelia tridentata var. flavescens D. E. Anderson 1972-6-20 s.n. Humboldt Little Van Duzen River Comment
  HSC98966  Hosackia oblongifolia var. oblongifolia Cara Witte 2007-6-12 239 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1360 Comment
  JEPS121647  Hosackia pinnata Jennifer Buck, Danielle Roach 2009-8-21 Humboldt Mistletoe Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM07A Comment
  SEINET957087  Hosackia rosea H. E. Parks 1932-1 3698 Humboldt Bishop Pine Lodge, Trinidad. 61 Comment
  UC562599  Hydrophyllum occidentale Joseph P. Tracy 1933-7-11 12700 Humboldt Grouse Mountain; North Coast Ranges, Trinity Summit 1524 Comment
  HSC13538  Hydrophyllum tenuipes Lincoln Constance, A. A. Beetle 1940-5-16 2611 Humboldt Valley of Van Duzen River, 5 mi. E of Carlotta 30 Comment
  UC1198409  Hypericum anagalloides Joseph P. Tracy 1918-7-5 5005 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  UC902140  Hypericum anagalloides Joseph P. Tracy 1947-6-28 17750 Humboldt Larrabee Valley 731 Comment
  CAS-BOT-BC411326  Hypericum calycinum Robert F. Thorne; P. Everett 1965-8-9 35315 Humboldt Clam Beach County Park 3 Comment
  HSC57046  Hypericum perforatum Overton, Butler 1979-7-24 9695 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1198399  Hypericum perforatum Joseph P. Tracy 1934-7-2 13290 Humboldt Trinidad 3 Comment
  UC909470  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt ca. 1/2 mi. n. Orleans (near Klamath R.) Comment
  UC164814  Hypochaeris glabra J. P. Tracy 1903-8-9 1947 Humboldt Eureka 0 Comment
  HSC100166  Ilex aquifolium J. P. Smith 2010-2-27 12708 Humboldt Azalea State Reserve SE of McKinleyville. 50 Comment
  POM205521  Iliamna latibracteata F. W. Peirson 1923-7-11 s.n. Humboldt Between Eureka and Crescent City Comment
  HSC48816  Ipomopsis aggregata Brad Klipfel 1973-7-31 230 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC909150  Ipomopsis aggregata Joseph P. Tracy 1932-7-12 10440 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC275572  Iris douglasiana Joseph P. Tracy 1924-5-25 6683 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  JEPS17244  Iris douglasiana W. L. Jepson 1927-7-3 12360 a Humboldt Meyers Station 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
  RSA135934  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-12 17195 Humboldt 6.3 miles east of Bridgeville along Highway 36 Comment
  RSA136521  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-11 17191 Humboldt 10.1 miles southwest from Trinity - Humboldt County line; 5.2 miles north of Harris on road to Zenia Comment
  SD112455  Iris purdyi darley F. Howe 1972-5-6 4832 Humboldt 1.5 miles north of Phillipsville. Comment
  UC673161  Iris tenax subsp. klamathensis Lincoln Constance and Reed C. Rollins 1942-5-12 2893 Humboldt 2 mi. n. Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  RSA0000278  Iris tenax subsp. klamathensis Lee W. Lenz 1953-5-13 18296 Humboldt Wooded hillsides along Klamath River, Orleans. 122 Comment
  HSC31445  Iris tenuissima D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5565 Humboldt Lower slopes of Black Lassic near Trinity Co. line 1585 Comment
  HSC70346  Iris tenuissima M. A. Baker 1980-6-7 1816 Humboldt Near Brush Mtn. 287 Comment
  CAS-BOT-BC88653  Isatis tinctoria J. H. Thomas 1949-6-12 900 Humboldt Near Klamath River, about 0.5 mile north of town of Orleans. Comment
  UC503070  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  POM185720  Isolepis cernua Joseph P. Tracy 1917-6-10 4821 Humboldt Eureka. 0 Comment
  SEINET9157642  Isolepis cernua H. E. Parks, S. T. Parks 24244 Humboldt Spruce Cove , Trinidad 61 Comment
  JEPS63980  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt Salmon Creek Valley Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley (around Humboldt Bay) 30 Comment
  CAS-BOT-BC340156  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt Mouth of Eel River 3 Comment
  CAS-BOT-BC101964  Juglans hindsii J. W. Blankinship 1928-7-12 s.n. Humboldt Clear Lake woods, Mouth of Kelsey Cr. Comment
  HSC44317  Juncus bolanderi Thomas W. Nelson, Jane P. Nelson 1977-9-3 3735 Humboldt Logging road to Pine Mtn., E of Pine Mtn. 1463 Comment
  RSA296738  Juncus breweri J. P. Smith, Thomas W. Nelson 1977-6-30 9220 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC184004 Image available Juncus breweri Joseph P. Tracy 1901-8-7 1272 Humboldt ocean beach at Humboldt Bay Northern Coast Region, Humboldt Bay; Humboldt Bay Comment
  UCD141319  Juncus breweri Harold L. Lint 1964-1-4 C 308 Humboldt Hwy 101, Dry Lagoon State Park. Comment
  RSA18013  Juncus bufonius Carl B. Wolf 1927-8-22 780 Humboldt Big Lagoon Comment
  HSC13995  Juncus bufonius D. E. Anderson 1961-9-9 1786 Humboldt Along Hwy. 101 Comment
  RSA246802  Juncus bufonius Robert F. Thorne, Percy C. Everett 1965-8-7 35229 Humboldt Samoa Peninsula. 3 Comment
  UC213332  Juncus confusus Joseph P. Tracy 1919-9-22 5272 1/2 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC1152107  Juncus covillei Joseph P. Tracy 1937-8-12 15644 Humboldt Snow Camp Meadow Comment
  UC249813  Juncus covillei var. obtusatus Joseph P. Tracy with H. E. Parks 1924-8-3 6759 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1152106  Juncus effusus subsp. pacificus Joseph P. Tracy 1930-11-9 9247 Humboldt just n Arcata (on Redwood Highway) Comment
  UC249745  Juncus ensifolius Joseph P. Tracy 1924-8-31 6849 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  UCD141534  Juncus ensifolius Malcolm A. Nobs; S. Galen Smith 1949-8-3 1199 Humboldt Southern outskirts of Eureka. Comment
  HSC102214  Juncus exiguus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1130 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC39048  Juncus falcatus Linda M. Barker 1976-6-22 1623 Humboldt 3 mi. W of Arcata Comment
  HSC46967  Juncus falcatus J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  UC1152091  Juncus falcatus subsp. sitchensis Joseph P. Tracy 1938-7-6 16019 Humboldt sw corner Big Lagoon Comment
  CDA39191  Juncus lescurii Gordon Leppig 1999-10-3 1259 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  UC184934  Juncus patens Joseph P. Tracy 1906-6-24 2506 Humboldt near Fields Landing (s slope of Humboldt Hill); Northern Coast Ranges, Humboldt Bay Region, Humboldt Hill 0 Comment
  CDA28713  Juncus planifolius P. F. Zika 2008-10-19 24229 Humboldt East side of Route 101, near Exit 728 for Trinidad Beach. Elevation: 110 meters. 0 Comment
  UC314634  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1925-7-5 7177 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC235879  Keckiella corymbosa Frank W. Peirson 1926-7-13 7060 Humboldt Mad River, vicinity of Blue Lake Comment
  CAS-BOT-BC235882  Keckiella corymbosa Milo S. Baker 1927-8-15 2459 b Humboldt Bed of Eel R. at S. Fork Station Comment
  CAS-BOT-BC235887  Keckiella corymbosa Carl B. Wolf 1927-8-30 1237 Humboldt 2 mi. so. of Petrolia on Matole [Mattole] River near where road crosses river Comment
  HSC59856  Keckiella corymbosa M. A. Baker 1979-7-7 1018 Humboldt 9.5 km E of Berry Summit along Hwy. 299, N bank of Willow Creek Comment
  POM225119  Keckiella corymbosa Philip A. Munz 1936-8-9 14328 Humboldt South fork of Eel River, 5 miles north of Humboldt-Mendocino county line. Comment
  UC1222789  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19315 Humboldt opposite mouth of Salmon River (at Ishi-Pishi Falls, w side of Klamath River); Klamath River Comment
  UC585629  Keckiella corymbosa Joseph P. Tracy 1937-7-11 15422 Humboldt vicinity Garberville 121 Comment
  UC1222816  Kickxia elatine Joseph P. Tracy 1951-7-14 19623 Humboldt near Willow Creek (borders of Lack Pond); Lack Pond Comment
  JEPS7507  Kyhosia bolanderi Joseph P. Tracy 1935-7-23 14136 Humboldt Corral Prairie Trinity Summit 1584 Comment
  POM187943  Lactuca biennis Marcus E. Jones 1931-7-14 29090 Humboldt South of Eureka Comment
  UC1223228  Lactuca serriola Joseph P. Tracy 1949-8-8 18403 Humboldt at Willow Creek (Frank Graham's orchard); Trinity River Valley 152 Comment
  JEPS38993  Lagophylla ramosissima W. L. Jepson 1932-8-8 16482 Humboldt Canoe Creek; Grasshopper Peak 1066 Comment
  CDA5661  Lamium amplexicaule B. F. Kemp 1958-2-7 102 -58 Humboldt E. Boots property, Route 1, Ferndale. 0 Comment
  UCSB45118  Lamium amplexicaule Council, Michael 1978-3-11 Humboldt Southwest corner of Cathedral Oaks and Los Caneros 10 Comment
  HSC71032  Lasthenia californica Thomas W. Nelson 1977-4-20 3324 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  JEPS9905  Lasthenia californica subsp. californica Lincoln Constance 1934-5-23 616 Humboldt sw slope in upper end Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  JEPS55279  Lathyrus latifolius W. L. Jepson 1932-7-30 16464 Humboldt Scotia Comment
  HSC95582  Lathyrus latifolius Andrea Pickart 2002-7-19 183 Humboldt Arcata Marsh at Jolly Giant Creek mile .1 10 Comment
  HSC14742  Lathyrus littoralis D. B. Bader 1963-4-1 17 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  HSC49393  Lathyrus littoralis R. York 1979-5-15 291 Humboldt Coastal strand opposite the Louisiana Pacific Mill in Samoa. Comment
  HSC33416  Lathyrus nevadensis var. nevadensis Thomas W. Nelson 1974-5-30 1346 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC49176  Lathyrus nevadensis var. nevadensis J. O. Sawyer 1977-4-24 2849 Humboldt 2 mi. E of State Route 96 on road to Fish Lake (13N01) Comment
  CAS-BOT-BC205044  Lathyrus palustris Kenneth Clark 1980-3-27 560 Humboldt Shelter Cove. South of Dead Man's Gulch 182 Comment
  UC1222412  Lathyrus polyphyllus Joseph P. Tracy 1950-7-2 18975 Humboldt near Grizzly Camp (on Little Hors Linto Creek); Trinity Summit, Little Hors Linto Creek Comment
  UC15347  Lathyrus polyphyllus H. N. Bolander 1866-1 6508 Humboldt Little Bear Harbor Comment
  SBBG3371  Lathyrus torreyi H. and M. Dearing 1933-5-16 Humboldt near Weott Comment
  UC709411  Lathyrus torreyi Joseph P. Tracy 1934-7-12 13378 Humboldt Big Lagoon 152 Comment
  UCD106660  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt 15 miles E of Blue Lake, along Highway 299. Comment
  RSA64951  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1949-6-8 19087 Humboldt 1 mile SE of Willow Creek, along Highway #299. Comment
  JEPS13463  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt sand dunes of coean beach at mouth Little River; Northern Coast Region Comment
  UC1199159  Layia carnosa Joseph P. Tracy 1937-6-5 15327 Humboldt mouth of Little River 6 Comment
  UC1223217  Layia carnosa Joseph P. Tracy 1946-6-2 17555 Humboldt Fairhaven; Samoa Peninsula Comment
  UC1409177  Ledum glandulosum Robert F. Thorne and P. Everett 1965-8-9 35295 Humboldt Big Lagoon 3 Comment
  UC1223216  Leontodon saxatilis Joseph P. Tracy 1948-7-11 18072 Humboldt at Lack Pond Comment
  HSC12416  Leontodon saxatilis subsp. saxatilis D. Santana Oct 1970 27 Humboldt Road side near Big Lagoon Comment
  UCD115346  Lepidium didymum Lincoln Constance 1934-6-18 902 Humboldt Border of North Dyerville Flat, near South Fork R.R. Station and Post Office, South Fork Eel River, Bull Creek Region. Comment
  CDA3825  Lepidium strictum P. Haggard 1996-7-8 Humboldt Louisiana Pacific Corporation tree nursery, Crannell. Comment
  CAS-BOT-BC13039  Lepidium virginicum var. menziesii Volney Rattan 1878-1-1 s.n. Humboldt Hoopa Valley. Comment
  HSC35037  Leptosiphon bicolor Thomas W. Nelson, James Nelson 1975-5-24 1871 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC226711  Leptosiphon latisectus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg Comment
  CAS-BOT-BC226713  Leptosiphon latisectus Alice Eastwood; John Thomas Howell 1937-6-23 4764 Humboldt Dinsmore's [Dinsmore] Comment
  CAS-BOT-BC341829  Lessingia nemaclada Harley P. Chandler 1901-6-1 1503 Humboldt North Coast Ranges. Klamath River 426 Comment
  HSC71379  Leucanthemum vulgare J. P. Smith 1971-10-6 4942 Humboldt End of Murray Rd. in McKinleyville. Comment
  SEINET11448001 Image available Leucanthemum vulgare H. E. Parks, S. T. Parks 1943-1 24257 Humboldt Spruce Cove, Trinidad 60 Comment
  HSC5360  Leucanthemum vulgare Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  HSC5361  Leucanthemum vulgare R. Spellenberg 1964-6-15 411 Humboldt Near Humboldt Bay on the S side of Arcata. Comment
  UCR70876  Lewisia cotyledon var. howellii Lincoln Constance, R. C. Rollins 1942-5-12 2885 Humboldt MOuth of Bluff Creek, 6 mi NE of Weitchpec 152 Comment
  UC1103199  Leymus mollis subsp. mollis J. P. Tracy 1900-7-4 884 Humboldt ocean beach opp. Eureka; Samoa Comment
  UC526794  Leymus mollis subsp. mollis Joseph P. Tracy 1927-5-1 7954 Humboldt sand dunes near Samoa (next to ocean); Northern Coast Ranges, Humboldt Bay 6 Comment
  CAS-BOT-BC272246  Leymus triticoides David D. Keck 1944-7-11 5496 Humboldt Cape Mendocino 3 Comment
  POM313157  Leymus vancouverensis Malcolm A. Nobs, S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, ca. 2 miles north of Eureka Comment
  CAS-BOT-BC436496  Ligusticum apiifolium Doris K. Kildale 1927-7-17 3763 Humboldt Bug Creek 792 Comment
  JEPS17502  Ligusticum apiifolium J. P. Tracy 1900-10-7 971 Humboldt Eureka Comment
  SFV18580  Ligusticum californicum T. W. Nelson, J. P. Nelson 1987-6-11 8556 Humboldt Along Forest Road 13N01, 0.25 miles south of turn off to Onion Lake. 1098 Comment
  CDA36066  Ligustrum vulgare R. Robison 2011-6-3 Humboldt Trinidad State Beach, across road from Humboldt State Marine Research Center. 0 Comment
  CAS-BOT-BC508406  Lilium columbianum A. M. Vollmer; L. Beane 1953-7-1 121 Humboldt Unspecified Comment
  SEINET12057695  Lilium columbianum F. H. Utech 1978-6-30 78 -260 Humboldt ca 2.5 km S of Del Norte/Humboldt County line on US 101 Comment
  RSA74745  Lilium kelloggii Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On trail to Blohns cabin, Bald Mountain, east of Korbel Comment
  UC1222538  Lilium kelloggii Joseph P. Tracy 1950-6-29 18933 Humboldt 3 mi e Kneeland (on Butler Valley Road) Comment
  CAS-BOT-BC130690  Lilium occidentale David D. Keck 1948-7-1 5978 Humboldt 3 mi. N. Big Lagoon Comment
  UC177231  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC132966  Lilium rubescens V. Rattan 1882-6-1 s.n. Humboldt unspecified Comment
  JEPS62028  Lilium rubescens Lincoln Constance 1934-5-28 709 Humboldt n of Weott (s Dyerville flat); South Fork Eel River, Bull Creek Region Comment
  SBBG1042  Lilium rubescens H. and M. Dearing 1939-6-27 3730 Humboldt Van Duzen River near Dinsmore Comment
  UC1198231  Lilium rubescens Joseph P. Tracy 1911-7-7 3419 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek, near the summit) 1219 Comment
  RSA44370B  Lilium washingtonianum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1677 Comment
  HSC99500  Lilium washingtonianum var. purpurascens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 160 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  UC1537005  Limnanthes douglasii Gordon H. True Jr. 1936-5-11 462 Humboldt 12 mi w Miranda (e of Elk Ridge); Elk Ridge 457 Comment
  HSC22528  Limonium californicum Jerry Parker 1968-11-9 228 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata. Comment
  HSC83038  Limonium californicum A. L. Eicher 1985-6-19 Humboldt Humboldt Bay, 0.3 mi. S of the junction of Samoa Blvd. and Vance Ave. 1 Comment
  UCD150383  Limonium californicum Harry A. George and B. Miller 1967-7-12 s.n. Humboldt Humboldt Bay, Gunther Island.. Comment
  UC908948  Linanthus androsaceus Joseph P. Tracy 1927-5-8 7975 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC146165  Linanthus bicolor Joseph P. Tracy 1908-6-9 2651 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1198572  Linanthus bicolor Joseph P. Tracy 1906-5-6 2437 Humboldt near Hydesville; Wolverton Gulch 60 Comment
  UC60871  Linanthus bicolor Harley P. Chandler Jun 1901 1417 Humboldt Klamath River North Coast Ranges 243 Comment
  UC1198546  Linanthus bolanderi Joseph P. Tracy 1908-6 2819 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  CDA6374  Linaria vulgaris E. C. Whitney 1965-9-25 Humboldt Highway 101, Fortuna. 0 Comment
  HSC76247  Linnaea borealis subsp. longiflora Teresa Prendusi 1981-7-7 122 Humboldt Near Slate Creek Butte. 1158 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
  UC1130237  Linum usitatissimum H. L. Person 1932-7-16 Humboldt Highway n of Trinidad Comment
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Aug 3 2007
  UCSB13395  Linum usitatissimum Dearing, Hugh; Dearing, Margaret 1939-6-23 Humboldt 30 miles east of Arcata Comment
  HSC102135  Lithophragma campanulatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1039 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC432296  Lithophragma campanulatum Alice Eastwood; John Thomas Howell 1937-6-24 4861 Humboldt Road ro Horse Mt. Comment
  HSC23087  Lithospermum californicum D. E. Anderson 1965-5-1 3581 Humboldt Along road to Bluff Creek campground, about 3 mi. from its junction with Hwy. 96 Comment
  JEPS20905  Logfia filaginoides Joseph P. Tracy 1921-5-30 5489 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC50708  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6112 B Humboldt Arcata; Russ Ranch, North-Western California Comment
  UCD66459  Lolium perenne A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3476 Humboldt 4 miles north of Birdgeville. Comment
  HSC74397  Lomatium californicum Gail Newton 1980-6-28 721 Humboldt Near Mad River Butte. 1536 Comment
  HSC96251  Lomatium californicum Kaylea Eickhoff, Cara M. Witte 2005-6-24 16 Humboldt ~13 mi S of Hwy 299 on NF1 1375 Comment
  HSC21575  Lomatium dasycarpum subsp. dasycarpum Francis Winter 1960-4-24 Humboldt 1 mi. W of Burnt Ranch 381 Comment
  HSC55320  Lomatium macrocarpum Terry Griswold, Butler 1979-7-10 7117 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  UC32502  Lomatium macrocarpum W. C. Blasdale 1896-6-6 Humboldt Kneeland's Pr. Comment
  HSC37192  Lomatium macrocarpum Barbara Kelly 1976-5-13 253 Humboldt Below road at Kneeland Airport Comment
  HSC63089  Lomatium martindalei M. A. Baker 1979-7-6 1013 Humboldt 0.6 k. W of FS 15N01 on FS 12N16 toward Bald Mtn. Comment
  CAS-BOT-BC211198  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Brannan Mountain 1219 Comment
  RSA273299  Lomatium tracyi B. Kelly 1977-7-16 537 Humboldt 1/4 mile in from Horse Mountain Road, 1/2 mile below turnoff to summit, near end of unused gravel road. Comment
  CAS-BOT-BC240471  Lonicera hispidula Alice Eastwood; John Thomas Howell 1937-6-22 4733 Humboldt Near Alder Point Comment
  CAS-BOT-BC240473  Lonicera hispidula Henry M. Pollard 1946-9-6 s.n. Humboldt Near Woodson Mine, Orleans region Comment
  CAS-BOT-BC240475  Lonicera hispidula John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  HSC3942  Lonicera hispidula var. vacillans W. D. Stevens 1967-7-16 44 Humboldt Along dirt rd. from Hwy. 101 to top of N bank of Mad River. Comment
  UC1239559  Lonicera hispidula var. vacillans Joseph P. Tracy 1938-7-5 16000 Humboldt Carlotta Northern Coast Ranges 60 Comment
  HSC91605  Lonicera involucrata E. Mackey 1986-5-13 Humboldt Patrick's Point State Park. Comment
  SD39856  Lonicera involucrata Edith A. Purer 1932-7-27 4145 Humboldt Near Arcata Comment
  CAS-BOT-BC241488  Lonicera involucrata var. ledebourii Ashley C. Browne 1938-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  CAS-BOT-BC241494  Lonicera involucrata var. ledebourii Carl B. Wolf 1927-8-22 770 Humboldt Big Lagoon Comment
  HSC49823  Lonicera involucrata var. ledebourii R. York 1979-4-13 226 Humboldt Big Lagoon Bog. Comment
  RSA455683  Lonicera involucrata var. ledebourii Charlotte M. Hoak 1931-7-15 s.n. Humboldt Alton. Comment
  UC179941  Lotus aboriginus Joseph P. Tracy 1914-7-5 4576 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  SEINET3523624 Image available Lotus americanus Joseph P. Tracy 1914-7-12 4583 Humboldt Eureka 0 Comment
  UCD106722  Lotus corniculatus S. P. Lynch 1975-6-19 1368 Humboldt Along U.S. Hwy 101 at Loleta. Comment
  UC1223406  Lotus denticulatus Joseph P. Tracy 1933-6-25 12625 Humboldt 3 mi above Eel River Bar junction of the South Fork (Eel River Bar at Camp Grant); Eel River Bar Comment
  UC1223407  Lotus denticulatus Joseph P. Tracy 1933-7-9 12655 Humboldt near Willow Creek (on Trinity Highway) 304 Comment
  RSA168860  Lotus formosissimus Joseph P. Tracy 1950-6-8 18746 Humboldt Capetown, on Bear River, top of Cape Ridge. 152 Comment
  UC33503  Lotus formosissimus Chesnut and Drew 1888-7-8 Humboldt near Campbell's Comment
  HSC49979  Lotus humistratus M. A. Baker 1979-6-1 772 Humboldt N bank of road to Snow Mt. 610 Comment
  JEPS55512  Lotus humistratus Lincoln Constance 1934-5-23 623 Humboldt upper end of Look Prairie South Fork Eel River, Bull Creek Region, Look Prairie 365 Comment
  UC1223430  Lotus micranthus Joseph P. Tracy 1936-5-30 14839 Humboldt Samoa Sand Dunes Comment
  CDA27277  Lotus micranthus E. C. Whitney 1959-5-6 Humboldt Highway 101, south of Eureka. (Brown property) 0 Comment
  RSA293205  Lotus micranthus J. P. Smith 1973-5-26 6837 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC33555  Lotus nevadensis var. nevadensis Chestnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC727682  Lotus nevadensis var. nevadensis Milo S. Baker 1946-6-14 11490 Humboldt hwy about 1/3 way up South Fork Mt. South Fork Mt. Comment
  HSC43172  Lotus unifoliolatus var. unifoliolatus R. Sutherland 1976-8-13 6 .13876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  RSA254752  Lupinus Thomas W. Nelson, James Nelson, A. Nelson 1973-5-28 955 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC48706  Lupinus albicaulis var. shastensis Hilda W. Grinnell 1932-7-22 39 Humboldt on slope below U.S.G.S. signal rock, South Fork Mountain (ne slope of South Fork Mountain); ne slope of South Fork Mt. 1767 Comment
  HSC36638  Lupinus albifrons var. flumineus Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1904 Humboldt Beside Rd. 2S08 to Pine Mtn. 1555 Comment
  HSC50953  Lupinus andersonii G. L. Clifton, Overton 1979-6-3 3777 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  RSA636108  Lupinus arboreus R. F. Thorne 1974-7-29 45078 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  UC149843  Lupinus arboreus J. P. Tracy 1910-5-8 3134 Humboldt immediate vicinity Eureka; Immediate vicinity of Eureka 0 Comment
  RSA25890  Lupinus arboreus var. arboreus Carl B. Wolf 1937-9-9 3654 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  RSA407033  Lupinus arboreus var. arboreus Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  UC1197277  Lupinus bicolor Joseph P. Tracy 1929-5-5 8564 Humboldt along South Fork of Eel River Miranda (Northern Coast Ranges); , South Fork of Eel River 121 Comment
  UC15950  Lupinus bicolor Harley P. Chandler May, 1901 1146 Humboldt Humboldt Bay; Humboldt Bay, North Coast Ranges 3 Comment
  HSC32075  Lupinus bicolor Glenn McGourty 1974-4-27 35 Humboldt Along side of Mattole River Comment
  HSC78624  Lupinus bicolor L. P. Janeway 1984-5-16 785 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd. just N of the boat ramp 3 Comment
  HSC36191  Lupinus constancei Thomas W. Nelson 1973-7-10 1017 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  JEPS82252  Lupinus formosus var. formosus Roger Raiche 1983-7-19 30539 Humboldt Wilder Ridge Road 1 mi n of its intersection with Kings Peak Road (and the road to Ettersburg); Wilder Ridge Road 548 Comment
  HSC58603  Lupinus latifolius G. L. Clifton, Griswold 1979-7-25 10856 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC98986  Lupinus latifolius var. latifolius Cara Witte 2008-7-2 807 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC1281746  Lupinus lepidus var. sellulus Richard Spellenberg 1965-6-13 1110 Humboldt about 3/4 mi s Highway through Hoopa Indian Reservation (along road on e side of river); e side Trinity Riverk hw through Hoopa Indian Reservation Comment
  POM276552  Lupinus littoralis Lyman D. Benson 1928-7-10 446 Humboldt Clam Beach, Trinidad. 12 Comment
  OBI12876  Lupinus luteolus Carl B. Wolf 1937-8-12 9211 Humboldt North Coast Range, 20 mi N of Bridgeville on rd to Kneeland 457 Comment
  POM179219  Lupinus luteolus H. C. Cantelow 1940-7-6 s.n. Humboldt Near Van Duzen River, 7.5 miles east of Dinsmore. Comment
  UC157015  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1906-6-24 2495 Humboldt near Fields Landing; Northern Coast Region, Region about Humboldt Bay 0 Comment
  UC774984  Lupinus polyphyllus var. polyphyllus Carl B. Wolf 1937-8-11 9144 Humboldt 1/2 mi e Alton; e of Alton 21 Comment
  UCSB12242  Lupinus rivularis Breedlove, Dennis 1961-7-4 Humboldt 10.9 miles west of Willow Creek on U.S. 299 822 Comment
  HSC58533  Lupinus sellulus subsp. ursinus Overton, Butler 1979-7-23 9425 Humboldt Near Horse Mtn. close to Willow Creek 1478 Comment
  HSC57931  Lupinus tracyi G. L. Clifton, Griswold 1979-7-31 11567 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  HSC44560  Luzula comosa Brad Klipfel 1973-7-15 179 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56453  Luzula comosa Griswold, Butler 1979-7-12 7228 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC2978  Luzula comosa Harley P. Chandler June, 1901 1312 A Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 304 Comment
  UC1152130  Luzula comosa Joseph P. Tracy 1929-4-28 8555 Humboldt near w side South Fork Trinity River (on Manzanita Flat); Trinity River Valley, near South Fork <Trinity River> 182 Comment
  CAS-BOT-BC499137  Luzula macrantha Peter F. Zika 2011-7-3 25497 Humboldt Titlow Hill Road, 3.7 road miles SE of Rte 299 at Berry Summit, 1 air km SSW of Horse Mountain 1310 Comment
  CHSC118269  Luzula macrantha Peter F. Zika 2011-7-3 25499 Humboldt Titlow Hill Road, 4.2 road miles SE of Route 299 at Berry Summit, 0.8 air km SSW of Horse Mountain. Outer North Coast Ranges (NCoRO). 1390 Comment
  HSC75690  Luzula parviflora Bill Copeland 1980-7-2 310 Humboldt Near Snow Camp Mtn. 1311 Comment
  HSC59471  Luzula parviflora M. A. Ericksen 1979-5-9 261 Humboldt Behind Jolly Giant Creek HSU campus, Arcata Comment
  SEINET11790244  Luzula parviflora Unknown 1936-1 13278 Humboldt near Trinidad Comment
  UC1103680  Luzula parviflora Joseph P. Tracy 1925-6-7 7056 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  SEINET3862856 Image available Lycopodium clavatum H. E. Parks, W. K. Parks 1932-7-30 01132 Humboldt Campp 21', Hammond Lumber Company, Trinidad.; 0 152 Comment
  CHSC96440  Lycopus uniflorus Gordon Leppig 1997-8-3 640 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E 4557202N. 3 Comment
  HSC59495  Lysichiton americanus M. A. Ericksen 1979-4-20 212 Humboldt Adjacent to Cranell Rd. and Little River Dr. junction Comment
  SEINET11770340  Lysichiton americanus F. H. Utech 1986-1 86 -416 Humboldt between Capetown & Ferndale along Mattole Creek, SW slope of Bear River Ridge 100 Comment
  RSA0015856  Lythrum hyssopifolia J. B. Feudge 1923-7-22 168 Humboldt Fortuna. 15 Comment
  UC494147  Madia elegans H. E. Parks, J. P. Tracy 1930-5-25 882 Humboldt Laribee Valley Comment
  CAS-BOT-BC342798  Madia elegans Carl B. Wolf 1927-8-28 1162 Humboldt On the Trinity River, 3 miles from Weitchpec Comment
  UC1093114  Madia elegans Richard Snow 1957-8-31 306 Humboldt 4 mi n of Garberville; Hayfield, Dean Creek Lodge Comment
  RSA15579  Madia elegans subsp. elegans C. B. Wolf 1927-8-28 1162 Humboldt On the Trinity River, 3 miles from Weitchpec Comment
  CAS-BOT-BC344358  Madia exigua David D. Keck 1944-7-11 5501 Humboldt 5 mi. W. of Briceland on road to Ettersburg Comment
  HSC71164  Madia gracilis Thomas W. Nelson 1977-5-30 3410 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC72617  Madia gracilis J. P. Smith 1977-7-3 9239 Humboldt Six Rivers National Forest, on Rd. to Onion Lake, 4.7 mi. from junction with Hwy. 36 610 Comment
  SEINET3148089  Madia gracilis J. B. Davy, W. C. Blasdale 1899-6-19 5674 -C Humboldt Hoopa Mt. Comment
  UC582407  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  UC176475  Madia gracilis Joseph P. Tracy 1913-6-13 4109 Humboldt opposite Buck Mountain (in Van Duzen River Valley, Dinsmore's Ranch); Northern Coast Ranges, in Valley of Van Duzen River, Dinsmor 762 Comment
  NY214972  Madia gracilis subsp. pilosa J. P. Tracy 1931-6-28 9588 Humboldt Buck Mountain, lower foothills of its northwest slope 762.0 Comment
  HSC103978  Maianthemum dilatatum Kyle Brown 2015-4-25 38 Humboldt Trinidad, along trail at Trinidad State Beach Park 15 Comment
  UC1134631  Maianthemum dilatatum R. Stahelin 1933-5-17 Humboldt Arcata City Park Eureka Quad., Arcata City Park Comment
  UC13726  Maianthemum dilatatum W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  HSC15593  Maianthemum dilatatum S. R. Johnson 1965-4-30 48 Humboldt 2 mi. N of Luffenholtz Beach 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
  UC481090  Malacothrix floccifera P. E. Goddard 1906-6 662 Humboldt Lasseck Peak Comment
  RSA95019  Malacothrix floccifera F. W. Peirson 1923-7-9 3933 Humboldt Humboldt County State Park Comment
  UC168955  Marah oregana Joseph P. Tracy 1904-7-17 2120 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC93221  Marah oregana Gordon Leppig 1998-3-16 720 Humboldt McKinleyville, near end of Fischer Ave. at the Hammond Trail entrance 18 Comment
  RSA273320  Marah oregana J. D. Ackerman 1975-6-10 451 Humboldt 1 mile N of Samoa Bridge turnoff from Samoa Blvd., S of Manila, Humboldt Bay Comment
  UC577418  Marrubium vulgare Joseph P. Tracy 1925-5-17 6973 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley near South Fork 182 Comment
  HSC45610  Matricaria discoidea Diane L. Reed 1978-5-7 70 Humboldt E fork of Willow Creek, 34 mi. from Hwy. 101 on Hwy. 299 Comment
  UC160957  Medicago lupulina Harley P. Chandler June, 1901 1423 Humboldt Klamath River Northern Coast Ranges 304 Comment
  HSC39838  Medicago polymorpha Peter Sorensen 1976-6-15 Humboldt Woodley Island Comment
  HSC14976  Medicago polymorpha D. E. Anderson 1961-9-9 1794 Humboldt Big Lagoon County Park Comment
  UCD86262  Melica aristata Joseph P. Tracy 1949-7-19 18374 Humboldt Grouse Mountain, at 'Friday Camp. 1219 Comment
  HSC64160  Melica harfordii J. O. Sawyer, K. A. Sawyer 1979-6-24 3401 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UCD87504  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Garberville. Comment
  SEINET10925519  Melica subulata Harley P. Chandler Chandler 1174 Humboldt 30 Comment
  HSC15519  Melilotus albus C. Kline 1970-11-9 66 Humboldt .5 mi. N of Bayside, Bayside Rd. Comment
  HSC15520  Melilotus albus M. J. Athey 1970-10-12 16 Humboldt Trinidad, along road to Luffenholtz Beach. Comment
  HSC28183  Melilotus albus Richard Curtis 1973-9-28 27 Humboldt Along R.R. tracks near mouth of Nanning Cr., across Eel River from Rio Dell Comment
  RSA246675  Melilotus indicus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-8 35248 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  SEINET200815  Mentzelia dispersa Joseph P. Tracy 1908-7-30 2843 Humboldt Northwest slope of Buck Mountain 1219 Comment
  SJSU2546  Menziesia ferruginea H. L. Buckalew 1962-6-28 Humboldt Prairie Cr Redwoods State Park Comment
  CAS-BOT-BC428713  Micranthes californica Doris K. Kildale 1927-3-20 2925 Humboldt Philipsville, south fork of Eel River Comment
  HSC73145  Micropus californicus M. A. Baker 1980-5-18 1329 Humboldt Near Black Mountain 390 Comment
  CHSC35518  Micropus californicus var. californicus Thomas Nelson; James Nelson 1976-5-30 2621 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC73173  Micropus californicus var. californicus M. A. Baker 1980-5-18 1337 Humboldt Near Black Mtn. 792 Comment
  UC582430  Microseris borealis Joseph P. Tracy 1936-6-28 15027 Humboldt Bald Mountain; at Lake Prairie. 1066 Comment
  CAS-BOT-BC322684  Microseris laciniata Lincoln Constance 1934-5-24 624 Humboldt S. slope of Lower Look Prairie, South Fork Eel River 182 Comment
  UC175985  Microseris laciniata subsp. laciniata Joseph P. Tracy July 1908 2893 Humboldt ridge between Van Duzen River and Mad River (Humboldt and Trinity Counties); Northern Coast Ranges, ridge between Van Duzen River and Mad 914 Comment
  HSC73770  Microseris nutans M. A. Baker 1980-6-7 1777 Humboldt Near Brush Mtn. 1128 Comment
  UC1199450  Microseris nutans Joseph P. Tracy 1933-7-25 12886 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC71036  Microsteris gracilis Thomas W. Nelson 1977-4-20 3328 Humboldt Along FS Rd. 1N15 at bridge over Mad River 457 Comment
  HSC75437  Microsteris gracilis J. O. Sawyer 1980-7-18 3593 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC17187  Microsteris gracilis Elrid H. Spinas 1948-5-15 26 Humboldt Along rd. to Gouse Mtn. Lookout, 1 mi. from Hwy. 299 Comment
  HSC38622  Mimulus aurantiacus var. aurantiacus D. E. Anderson, J. P. Smith 1971-6-21 1111 Humboldt 5.2 mi. E of the bridge over Eel River at Alderpoint, near Humboldt-Trinity county line Comment
  UC1063411  Mimulus aurantiacus var. aurantiacus H. L. Person 1932-7-23 Humboldt road e Korbel; Eureka Quadrangle Comment
  HSC12696  Mimulus dentatus Jana Kattenhorn 1970-10-28 153 Humboldt Mad River at the mouth of Lindsey Creek. North Bank Rd. off Hwy. 299 Comment
  HSC20708  Mimulus dentatus Jack Rockwell 1962-5-5 58 Humboldt W side Jacoby Creek 18 Comment
  UC1103337  Mimulus douglasii Joseph P. Tracy 1930-5-4 8689 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC1196794  Mimulus douglasii Joseph P. Tracy 1948-5-31 17997 Humboldt near Harris 609 Comment
  HSC20761  Mimulus guttatus R. Spellenberg 1964-6-15 407 Humboldt 0.5 mi. S of Humboldt Hill exit, 5 mi. S of Eureka Comment
  HSC89591  Mimulus guttatus M. Roantree 1985-5-15 45 Humboldt E side of Trinidad Head, on slope above Trinidad Bay beach Comment
  POM90457  Mimulus guttatus Joseph P. Tracy 1920-5-18 5329 Humboldt South Fork Eel River, 4 miles above Dyerville. Along Eel River from South Fork to Scotia. 61 Comment
  UC175794  Mimulus guttatus Joseph P. Tracy 1912-6-16 3704 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region 0 Comment
  HSC85939  Mimulus kelloggii Susan Carter, Eric May, Sarah McNaull 1987-3-7 7 Humboldt 8 mi. SSE of Salyer on Co. Rd. 447, F.S. Rd. 5N03, trail 6E23; E of South Fork of Trinity River 457 Comment
  UC1196806  Mimulus kelloggii Joseph P. Tracy 1947-4-20 17671 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC76220  Mimulus moschatus Overton, Butler 1979-7-24 9768 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC98844  Mimulus moschatus Cara Witte 2008-7-11 876 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC20787  Mimulus pilosus D. E. Anderson 1963-10-6 2879 Humboldt Mad River bed, across from Essex Junction. Comment
  HSC55325  Mimulus primuloides var. primuloides Griswold, Butler 1979-7-12 7155 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC97942  Mimulus pulsiferae Cara Witte 2007-6-20 304 Humboldt National Forest 1. 1/4 mile north of intersection with 5N09. 1434 Comment
  SEINET11943610  Minuartia douglasii J. P. Tracy 1950-1 18993 Humboldt 2 mi S of Burr Valley on Albee Road, Bridgeville to Blocksburg 1158 Comment
  UC902016  Mitella diversifolia Joseph P. Tracy and Harold E. Parks 1949-6-5 11654 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC902093  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt along trail from Hoopa to summit (near Box Camp); Trinity Summit 1524 Comment
  HSC41843  Mitella ovalis N. G. Sugihara 1977-4-23 9 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC45055  Moehringia macrophylla R. Sutherland 1978-4-22 2 .22478 Humboldt Ridge top along King's Crest Traiil 991 Comment
  UC13619  Moehringia macrophylla Chesnut and Drew 1888-8-9 Humboldt head of Redwood Creek Comment
  SEINET6646077 Image available Mollugo verticillata Joseph P. Tracy 1920-1 5363 Humboldt Klamath River at Bluff Creek Comment
  HSC101970  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 866 Humboldt Patterson Meadows 1566 Comment
  HSC102521  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1508 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC1239677  Monardella odoratissima subsp. glauca Joseph P. Tracy 1935-7-14 14093 Humboldt Horse Mountain 1310 Comment
  HSC58069  Monardella odoratissima subsp. pallida G. L. Clifton, Griswold 1979-8-1 11953 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  BLMAR645  Monardella sheltonii Jennifer Wheeler 2011-8-31 645 Humboldt Lacks creek, Pine Ridge road, spur 3 at Stormy Saddle 1097 Comment
  CAS-BOT-BC220259  Monardella sheltonii Henry M. Pollard 1948-7-19 s.n. Humboldt Between Orleans and Van Fleet ranch Comment
  CDA15839  Monardella sheltonii P. Haggard 1999-10-18 PDR 018001 Humboldt North Coast Ranges; Vicinity of Blue Lake off Hwy 299 +- 3 mi. E of Arcata. USFS Rd. #1 0 Comment
  LA62456  Monardella villosa Harlan Lewis; 1940-7-3 sn Humboldt 1 mi. N of Richardson Grove State Park Comment
  UCLA62435  Monardella villosa subsp. globosa C. Epling, Wm. Robison 1935-7-24 Humboldt Dyerville Comment
  JEPS14830  Monotropa hypopitys W. L. Jepson 1902-6 1946 Humboldt woods near Green Pt. Ranch; Hupa Road Comment
  HSC102631  Montia chamissoi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1616 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC444805  Montia diffusa Volney Rattan 1882-1-1 s.n. Humboldt Unspecified Comment
  BLMAR621  Montia howellii Jennifer Anthony-Wheeler 2009-5-20 521 Humboldt Lacks Creek, On main westside road on vernally wet inboard ditch behind gate 853 Comment
  JEPS109237  Montia howellii Stephanie Puentes 2008-4-23 Humboldt Vicinity Larabee Valley, along Horse Creek about 1 mile upstream from Hwy 36. Comment
  HSC33082  Montia parvifolia Thomas W. Nelson, J. D. Ackerman 1974-5-14 1269 Humboldt Baker Beach, 4 mi. S of Trinidad Comment
  UC162970  Montia parvifolia Joseph P. Tracy 1908-6 2708 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC83800  Montia parvifolia Harley P. Chandler May, 1901 1261 Humboldt North Coast Ranges, Redwood Belt Redwood Belt; North Coast Ranges, Redwood Belt 152 Comment
  UCD110310  Morella californica T. I. Storer 1931-7-1 2220 Humboldt Near Samoa. Comment
  CAS-BOT-BC275347  Muhlenbergia mexicana Henry M. Pollard 1947-8-19 s.n. Humboldt Wilson Creek, near Orleans Comment
  UC1145147  Muhlenbergia mexicana Joseph P. Tracy 1916-9-5 4774 Humboldt 4 mi. above mouth of S. Fork Eel R.; S. Fork Eel R. 60 Comment
  JEPS70787  Myosotis discolor Joseph P. Tracy 1925-5-10 6963 Humboldt near Hydesville; North Coast Ranges 91 Comment
  SEINET12275689  Myosotis laxa J. P. Tracy 1942-1 17072 Humboldt Mad River near bridge on coast highway Comment
  JEPS30068  Myrica californica Joseph P. Tracy 1931-4-12 9332 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  POM280267  Myrica californica Lyman Benson 1930-7-18 2191 Humboldt Shively, seaward north coast Mt. range, Eel River. 46 Comment
  RSA174003  Myrica californica Robert F. Thorne 1957-9-3 19020 Humboldt Patrick s Point State Park. Comment
  JEPS62076  Narthecium californicum Hilda W. Grinnell 1932-7-12 11 Humboldt below McKay Camp (S. Fork Mt.); S. Fork Mt. Comment
  HSC45471  Navarretia divaricata Thomas W. Nelson, Jane P. Nelson 1978-7-2 4392 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  BLMAR163  Navarretia mellita Donald Hazlett 1994-6-7 163 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC17144  Navarretia pubescens William J. Ferlatte, B. D. Rogers 1966-6-15 2098 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  HSC39447  Navarretia squarrosa Linda M. Barker 1976-8-2 1668 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  UC169028  Nemacladus capillaris Joseph P. Tracy Jul 21 1905-Aug 16 1905 2296 Humboldt Elk Mountain; Northern Coast Ranges 1219 Comment
  HSC35029  Nemophila menziesii Thomas W. Nelson, James Nelson 1975-5-24 1845 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC45622  Nemophila menziesii Diane L. Reed 1978-4-22 28 Humboldt Tish Tang Campground, 5 miles north of Willow Creek on State Hwy. 96. Comment
  HSC73815  Nemophila menziesii Gail Newton 1980-6-7 123 Humboldt Near Brush Mtn. 1128 Comment
  HSC34960  Nemophila menziesii var. atomaria Thomas W. Nelson 1975-5-24 1868 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC494164  Nemophila menziesii var. atomaria H. E. Parks, J. P. Tracy 1930-5-25 797 Humboldt Laribee Valley 762 Comment
  HSC13585  Nemophila menziesii var. atomaria T. M. Mingo May 1965 Humboldt W of Fairhaven Dr. intersection with Hwy. 101 Comment
  SEINET5521025  Nemophila menziesii var. atomaria J. P. Tracy 1906-5-6 2445 Humboldt Near Hydesville 60 Comment
  HSC100498  Nemophila parviflora Carl C. Marshall Mar 1886 146 Humboldt About Arcata. Comment
  HSC26339  Nemophila parviflora Thomas W. Nelson 1971-3-30 360 Humboldt Beside Williams Creek near Ferndale Comment
  UC1245399  Nemophila parviflora Joseph T. Gregory 1937-5-17 1201 Humboldt moist shaded ground e Trinity River (Willow Creek); e of Trinity River, Willow Creek 152 Comment
  UC146185  Nemophila pedunculata Joseph P. Tracy 1908-6 2700 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 457 Comment
  UC562592  Nemophila pedunculata Joseph P. Tracy 1927-4-10 7891 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  SD9810  Nephrolepis duffii May Canfield Unknown Humboldt Carlotta Comment
  OBI36374  Notholithocarpus densiflorus var. densiflorus David J. Keil 1983-7-1 17266 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  HSC69696  Nuphar polysepala R. Kalal 1980-6-1 10 Humboldt Essex Pond 15 Comment
  CAS-BOT-BC142298  Oemleria cerasiformis Doris K. Kildale 1927-3-26 2996 Humboldt Warren Creek, Lower Mad River Comment
  JEPS44827  Oemleria cerasiformis W. L. Jepson 1902-7-1 1974 Humboldt Redwood Creek; Hupa Road Comment
  CDA38489  Oenanthe sarmentosa Margaret Bellue 1932-9-28 s.n. Humboldt Near Arcata. 0 Comment
  HSC36315  Oenanthe sarmentosa Edward J. Grabek 1973-5-23 73523 .5 Humboldt Margin of N Clam Beach pond Comment
  CDA38173  Oenothera villosa subsp. strigosa E. C. Whitney 1968-6-26 s.n. Humboldt 1440 Carson Woods Road. 0 Comment
  UC902173  Oenothera wolfii Joseph P. Tracy 1949-8-8 18401 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC103084  Orobanche fasciculata Sydney Carothers 2014-6-22 3 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  UC1245403  Orobanche fasciculata Joseph T. Gregory 1935-7-30 860 Humboldt Salmon Summit. Comment
  UC1197445  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1948-5-31 18004 Humboldt Near Harris. Comment
  HSC48820  Orogenia fusiformis Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 34 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC55013  Orthilia secunda G. L. Clifton 1979-7-31 11395 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1197580  Orthilia secunda Joseph P. Tracy 1934-8-29 13626 Humboldt South Fork Mountain near McKay Camp 1676 Comment
  POM296047  Orthocarpus erianthus var. gratiosus S. K. Harris 1942-6-10 1474 Humboldt Bear River Ridge. 457 Comment
  POM228347  Orthocarpus faucibarbatus var. albidus S. K. Harris 1936-6-7 683 Humboldt Eureka. Near railroad station. 3 Comment
  HSC34279  Orthocarpus imbricatus K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  SEINET4096670  Orthocarpus tenuifolius O. M. Clark 1932-1 5693 Humboldt South Eureka. Comment
  HSC56006  Osmorhiza berteroi Overton, Butler 1979-7-31 11474 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  JEPS14255  Osmorhiza berteroi Joseph P. Tracy 1932-7-12 10450 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC1197133  Osmorhiza berteroi Joseph P. Tracy Jul 27 1908-Jul 30 1908 2738 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC56139  Osmorhiza occidentalis G. L. Clifton 1979-8-1 11960 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  BLMAR235  Oxalis Jennifer Anthony-Wheeler 1996-9-26 235 Humboldt King range, growing creekside of bear creek btween campgrounds 548 Comment
  UC1197421  Oxalis oregana Joseph P. Tracy 1901-6-10 1136 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC1103419  Oxalis oregana Joseph P. Tracy 1923-5-13 6199 Humboldt near Strong's Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  UCD110982  Oxalis oregana R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  HSC55133  Oxalis trilliifolia G. L. Clifton, Griswold 1979-8-1 11967 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC102561  Ozomelis trifida M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1548 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC166075  Packera bolanderi var. bolanderi Joseph P. Tracy 1908-6-23 2677 Humboldt near Grizzly Gulch (on Van Duzen River); Northern Coast Ranges, Van Duzen River 152 Comment
  UC1103778  Panicum acuminatum var. acuminatum Joseph P. Tracy 1915-6-20 4651 1/2 Humboldt Ricks Prairie Eureka (Eureka); Northern Coast Region, Ricks Prairie 0 Comment
  UC1254537  Panicum acuminatum var. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt 5 mi s Garberville (bank of South Fork Eel River at Hwy 101); bank of S Fk Eel River Comment
  HSC10489  Panicum acuminatum var. fasciculatum J. P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek. Comment
  HSC39757  Parapholis strigosa Peter Sorensen 1976-7-11 Humboldt Woodley Island. Comment
  HSC39934  Paxistima myrsinites J. O. Sawyer 1970-6-25 2291 Humboldt 1646 Comment
  HSC75415  Paxistima myrsinites J. O. Sawyer, M. A. Ericksen 1980-7-18 3645 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  UC1199003  Paxistima myrsinites Joseph P. Tracy 1913-7-20 4373 Humboldt near summit between Redwood Creek and Three Creeks (above Three Creeks); Northern Coast Ranges 1066 Comment
  UC213504  Pedicularis racemosa Joseph P. Tracy 1919-9-18 5249 Humboldt Trinity Summit; Northern Coast Ranges 1524 Comment
  JEPS26256  Penstemon anguineus Joseph P. Tracy 1919-9-18 5250 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1524 Comment
  JEPS7206  Penstemon anguineus P. E. Goddard 1906-6 679 Humboldt Lasseck Pk Comment
  HSC70524  Penstemon deustus Gail Newton 1980-7-15 1587 Humboldt Near Sims Mtn. 1311 Comment
  HSC70977  Penstemon deustus Gail Newton 1980-7-22 1678 Humboldt Near Devils Backbone 1554 Comment
  JEPS11634  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15513 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  NY604551  Penstemon laetus var. sagittatus J. P. Tracy 1933-7-25 12827 Humboldt Horse Mountain 1432.6 Comment
  RSA21443  Penstemon newberryi subsp. berryi Carl B. Wolf 1937-8-12 9207 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  UC1198050  Penstemon newberryi var. berryi Joseph P. Tracy 1933-7-16 12786 Humboldt South Fork Mountain, near McKay Camp Northern Coast Ranges 1676 Comment
  UC168978  Penstemon newberryi var. berryi Joseph Burtt Davy and Walter C. Blasdale Jun 21-23 1899 5860 Humboldt Trinity Summit North Coast Ranges Comment
  UC577358  Penstemon newberryi var. berryi Joseph P. Tracy 1932-7-12 10472 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  HSC39394  Penstemon purpusii D. E. Anderson, J. P. Smith 1971-7-6 - 1279 Humboldt Horse Mtn. Comment
  NY130492  Penstemon rattanii V. Rattan 06 1879 58 Humboldt 792.5 Comment
  HSC70388  Pentagramma triangularis Gail Newton 1980-6-7 143 Humboldt Near Brush Mtn. 1128 Comment
  HSC1077  Pentagramma triangularis D. E. Anderson 1965-11-21 4170 Humboldt 3-4 mi. S of Weitchpec along rd. to Hoopa Comment
  UC1197318  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1948-9-5 18167 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  JEPS14205  Perideridia gairdneri subsp. gairdneri Joseph P. Tracy 1936-10-24 15204 Humboldt hillside 2 mi s Field's Landing; Northern Coast Region, <Region> around Humboldt Bay 9 Comment
  JEPS146  Perideridia gairdneri subsp. gairdneri W. L. Jepson 1936-8-17 17918 Humboldt hillside 2 mi s Field's Landing Comment
  RSA41945  Perideridia kelloggii H. C. Cantelow 1936-8-28 1723 Humboldt 4 1/2 miles SW of Dinsmore, Fortuna, bluff road Comment
  HSC98755  Perideridia oregana Cara Witte 2007-7-27 602 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1560 Comment
  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
  HSC6050  Petasites frigidus var. palmatus C. O. Baker 1962-3-22 6 Humboldt 2 mi. S of Trinidad along old Hwy. 101 183 Comment
  HSC6051  Petasites frigidus var. palmatus D. E. Anderson 1962-3-18 1942 Humboldt Jacoby Creek Comment
  HSC79486  Petasites frigidus var. palmatus Kenneth Clark 1980-3-23 534 Humboldt South fork of Dead Man's Gulch 38 Comment
  UC129570  Petasites frigidus var. palmatus Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC249803  Petasites frigidus var. palmatus Joseph P. Tracy 1923-9-23 6562 Humboldt Howe Creek Northern Coast Ranges 60 Comment
  CDA20465  Petrorhagia dubia P. Haggard 2003-9-15 PDR 1285905 Humboldt Northwestern California; Klamath River near Orleans. 0 Comment
  HSC13667  Phacelia heterophylla subsp. virgata D. E. Anderson 1962-5-1 2198 Humboldt 1 mi. W of Hoopa Comment
  UC1222898  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1950-6-15 18802 Humboldt 7 mi Harris; Mail Ridge Comment
  UCD120520  Phacelia heterophylla subsp. virgata Alice Eastwood; John Thomas Howell 1937-6-23 4757 Humboldt Dinsmore's. Comment
  HSC57408  Phacelia mutabilis G. L. Clifton, Griswold 1979-7-26 10163 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  BLMAR159  Phacelia nemoralis subsp. nemoralis Donald Hazlett 1994-6-7 159 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1199109  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3624 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC671691  Phacelia nemoralis subsp. oregonensis Lincoln Constance, Alan A. Beetle 1940-5-16 2609 Humboldt 12 mi s Eureka (summit of bluff); Table Bluff 30 Comment
  HSC56132  Philadelphus californicus G. L. Clifton, Griswold 1979-8-1 11949 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC81658  Philadelphus californicus Thomas W. Nelson, Jane P. Nelson 1980-7-13 6063 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  UC1035063  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt summit of US Hwy 299 betw. Willow Creek and Blue Lake Comment
  UC492217  Philadelphus lewisii Joseph P. Tracy 1929-7-27 8646 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  UC725910  Philadelphus lewisii A. A. Heller 1923-7-9 13776 Humboldt near Blue Lake (5 mi from Arcata) Comment
  UC1198555  Phlox adsurgens Joseph P. Tracy 1929-7-4 8635 Humboldt French Camp Ridge 1066 Comment
  UC60870  Phlox adsurgens Mrs. M. H. Manning Humboldt Bair's Hill Hoopa Valley Comment
  UC905634  Phlox adsurgens David D. Keck 1948-7-2 6003 Humboldt 0.25 mi w boundary of Six Rivers National Forest (8.6 mi w of Willow Creek, e of Berry's summit, e side of Rocky Ridge); Rocky Ridge 762 Comment
  UCD118236  Phlox adsurgens H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  HSC55604  Phlox diffusa Overton, Butler 1979-7-23 9428 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC62687  Phoradendron serotinum subsp. macrophyllum Michelle Stevens 1979-5-12 146 Humboldt Just before Camp Bauer in Korbel along the N Fork of the Mad River Comment
  UCSB2830  Physocarpus capitatus Phillips, Priscilla 1958-6-9 Humboldt Biship Pina Lodge, 2 mi. n. of Trinidad Comment
  SJSU2517  Physocarpus capitatus H. L. Buckalew 1962-6-21 Humboldt Smith R at Smith Cr Redwood State Park Comment
  HSC1356  Picea sitchensis S. J. Hawks 1965-3-19 9 Humboldt 1/4 mi. W of Fairhaven Comment
  SBBG25612  Picea sitchensis E. R. Blakley 1966-8-17 6802 Humboldt Patrick's Pt, 5 mi N of Trinidad 60 Comment
  UCR32234  Picea sitchensis David J. Keil 1983-7-1 17295 Humboldt Between Ferndale & Bear River Ridge Road along Mattole Road Comment
  UC1585370  Pinus contorta subsp. contorta R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 15 Humboldt w of Eureka (0.5 km s of Hwy. 255 on New Navy Base Rd. on North Spit of Samoa Peninsula, unstabilized dune system); North Spit Samoa Peninsula 5 Comment
  NY49723  Pinus contorta var. contorta H. E. Parks 05 1931 s.n. Humboldt Samoa, Pine Barrens Comment
  CAS-BOT-BC73113  Pinus lambertiana Doris K. Kildale 1926-9-5 2611 Humboldt Lassecks Peaks, Goat Camp 1661 Comment
  HSC41287  Pinus lambertiana Brad Klipfel 1974-7-27 481 Humboldt Horse Mtn. Comment
  HSC42411  Pinus muricata Robert M. Specht 1977-11-20 1190 Humboldt Near Hwy. 101, on flats along Georgia Pacific's A-line rd. , Bulk Collection # 117 122 Comment
  UC55660  Pinus ponderosa P. E. Goddard 1901-7-10 51 Humboldt ona Hupa (<currently spelled Hoopa as a place name>) Comment
  HSC36773  Pinus sabiniana Brent Whitely 1975-7-10 153 Humboldt 198 Comment
  HSC35168  Pityopus californicus S. Veirs, G. Lester, R. Yearout 1975-7-10 744 Humboldt Redwood National Park, Gann's Woods. 366 Comment
  HSC48733  Pityopus californicus J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 519 Humboldt Off FS 10N05. SE slope of Hopkins Butte. Bulk Collection 181 1037 Comment
  CAS-BOT-BC458133  Pityopus californicus Volney Rattan no date on label; presented 1903 s.n. Humboldt Unspecified Comment
  JEPS60975  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA178571  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1942-6-15 17142 Humboldt Miranda; along South Fork of Eel River. 122 Comment
  UC1222202  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18315 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1222215  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18322 Humboldt at Cameron Hill on the Kneeland Road Cameron Hill Comment
  UC54756  Plagiobothrys tenellus Harley P. Chandler May, 1901 1255 Humboldt Redwood Belt/Region North Coast Ranges 152 Comment
  UC906674  Plantago coronopus Stuart K. Harris 1942-5-28 6982 Humboldt 1 mi w Fortuna (near Palmer Creek) 15 Comment
  RSA178585  Plantago erecta Joseph P. Tracy 1950-6-8 18730 Humboldt Bear River Ridge. Comment
  HSC37954  Plantago maritima Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  HSC34985  Plantago subnuda Thomas W. Nelson 1974-9-12 1709 Humboldt 3 mi. S of Arcata Comment
  UC275579  Platanthera leucostachys Joseph P. Tracy 1924-7-13 6726 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC53951  Platanthera sparsiflora Griswold, Butler 1979-7-11 7001 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC1222186  Platanthera sparsiflora Joseph P. Tracy 1950-7-25 19069 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1222187  Platanthera sparsiflora Joseph P. Tracy 1950-7-2 18964 Humboldt 6 mi ne Hawkins Bar (at Fern Spring); Trinity Summit Range, Happy Camp Mountain, Fern Spring 1280 Comment
  SEINET516269  Platystemon californicus Vernon H. Oswald 1998-4-16 8915 Humboldt North Spit of Humbldt Bay, west side of New Navy Base Rd. 1.7 mi S of Hwy. 255. Comment
  JEPS4805  Plectritis brachystemon Joseph P. Tracy 1933-5-20 12250 Humboldt Northern Coast Ranges, Mattole Valley Mattole Valley; Northern Coast Ranges, Mattole Valley 60 Comment
  HSC21695  Plectritis congesta subsp. brachystemon Paul Shields May 1955 Humboldt 8 mi. S of Arcata. Comment
  HSC99458  Pleuropogon refractus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 112 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
  UCD90108  Pleuropogon refractus Joseph P. Tracy 1951-6-26 19560 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road.) Comment
  SEINET11680859  Pleuropogon refractus J. P. Tracy 1951-1 19560 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  RSA10113  Poa Joseph P. Tracy 1930-7-19 9053 Humboldt South Fork Mountain; along summit near Blake lookout. 1738 Comment
  UC180496  Poa annua Joseph P. Tracy 1914-5-14 4460 Humboldt Fort Seward; North Coast Ranges 121 Comment
  UC525617  Poa compressa Joseph P. Tracy 1925-7-5 7182 Humboldt High Prairie on Bald Mt; Northern Coast Ranges 1066 Comment
Read comments
Jul 18 2012
  CHSC10126  Poa douglasii J. W. Johnson 1961-8-17 1028 Humboldt On a dune, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC10694  Poa douglasii J. W. Johnson 1961-9-4 1101 Humboldt Christenson Farm, Samoa Peninsula, Arcata. Comment
  UC207680  Poa douglasii Joseph P. Tracy 1917-5-30 4798 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  UCD91539  Poa macrantha Linda M. Barker 1976-6-22 1625 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA55251  Poa macrantha W. A. Silveus 1938-7-6 2916 Humboldt Stinson beach Comment
  HSC10758  Poa pratensis E. W. Styskel 1964-4-26 72 Humboldt End of Davis St. at edge of Eel River in Rio Dell. Comment
  CAS-BOT-BC235982  Poa secunda subsp. secunda Joseph P. Tracy 1932-7-17 10693 Humboldt Klamath Mountains. Head of Devil's Hole 1828 Comment
  HSC74129  Poa secunda subsp. secunda R. York 1980-5-23 618 Humboldt Near Buck Mtn. 1524 Comment
  UC1103169  Poa secunda subsp. secunda Joseph P. Tracy 1921-4-24 5465 Humboldt facing S Fork of Eel River Phillipsville; Northern Coast Ranges 121 Comment
  UC1152045  Poa secunda subsp. secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 mi w Snow Camp (at Beck's Place, Hydesville) 1219 Comment
  UC525668  Poa secunda subsp. secunda Joseph P. Tracy 1926-5-9 7469 Humboldt valley s of Yager Creek 762 Comment
  HSC10805  Poa trivialis William J. Ferlatte 1963-5-6 35 Humboldt Arcata, near 11th and B Sts. Comment
  HSC41373  Poa trivialis J. O. Sawyer 1970-6-24 2277 Humboldt W of Mill Creek Lakes. 1677 Comment
  UC525630  Poa trivialis Joseph P. Tracy 1926-6-12 7587 Humboldt near Orick (at Davison's Ranch); North Coast Ranges 60 Comment
  UCD92117  Poa trivialis H. S. Yates 1936-6-16 6582 Humboldt near Bayside. Comment
  UC1988935  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta 5 miles east of town, open flat by old Strong's District School House 45 Comment
  UC162581  Polemonium carneum Ethel Tracy 1911-6-18 Humboldt near Big Lagoon; Northern Coast Ranges, near Big Lagoon 30 Comment
  UC1198996  Polygala californica Joseph P. Tracy 1921-4-24 5455 Humboldt facing South Fork Eel River (Phillipsville); Northern Coast Ranges, , South Fork Eel River 121 Comment
  UC17439  Polygala californica C. C. Marshall 1888-1 Humboldt Eel River Region Comment
  UC183759  Polygala californica Joseph P. Tracy 1912-6-9 3667 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC570808  Polygala cornuta var. cornuta H. L. Mason 1932-7-21 7110 Humboldt on road from Arcata to Weaverville; east slope of Southfork Mountains Comment
  UC902121  Polygala cornuta var. cornuta Joseph P. Tracy 1946-7-28 17622 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198084  Polygonum amphibium var. stipulaceum Joseph P. Tracy 1921-8-7 5864 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  POM126162  Polygonum bolanderi Joseph P. Tracy 1921-8-21 5944 Humboldt Trinity River at mouth of South Fork. 152 Comment
  UC30051  Polygonum convolvulus Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC55506  Polygonum davisiae Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5806 Humboldt Trinity Summit North Coast Ranges Comment
  RSA152353  Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt On Box Camp trail, 1/2 mile W of summit. 1677 Comment
  HSC55096  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11800 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA178533  Polygonum minimum Joseph P. Tracy 1950-8-8 19281 Humboldt On trail betw Box Camp and Croghon Hole. 1677 Comment
  CHSC55907  Polygonum paronychia L. P. Janeway 1987-7-31 2544 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  HSC64430  Polygonum paronychia J. P. Smith 1971-10-6 4957 Humboldt End of Murray Rd. in McKinleyville. Comment
  UCSC000204  Polygonum paronychia H. S. Yates 1936-6-16 5656 Humboldt 0.5 mile S.W. of Samoa - Eureka 3 Comment
  UC146160  Polygonum parryi Joseph P. Tracy 1908-6 2722 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  HSC54512  Polygonum spergulariiforme Overton, Butler 1979-7-23 9426 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  CAS-BOT-BC72040  Polypodium calirhiza Alice Eastwood 1907-4-21 5 Humboldt Trinidad Comment
  SDSU19201  Polypodium calirhiza Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3015 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 1.7 miles south. Roadcut, north side of road. Ca. 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 963 Comment
  HSC95875  Polypodium calirhiza Will Ferrand 2002-5-7 46 Humboldt 200 ft. N of the intersection of Lanphere Rd. and the entrance to Lanphere Dunes Preserve 9 Comment
  CHSC37525  Polypodium glycyrrhiza M. S. Taylor 1982-10-24 5184 Humboldt Samoa, under bridge, ca. 1 mi nw of Eureka. 0 Comment
  JEPS19017  Polypodium glycyrrhiza Joseph P. Tracy 1925-11-25 7326 Humboldt near the S Fork Trinity River Valley; Northern Coast Ranges 182 Comment
  UC275412  Polypodium glycyrrhiza Joseph P. Tracy 1925-11-25 7326 Humboldt near the S Fork Trinity River Valley; Northern Coast Ranges 182 Comment
  CAS-BOT-BC76848  Polypodium glycyrrhiza Doris K. Kildale 1928-2-19 4262 Humboldt Big Rock between Little River and Moonstone Beach Comment
  CAS-BOT-BC72080  Polypodium scouleri Joseph P. Tracy 1933-6-6 12510 Humboldt Trinidad 6 Comment
  JEPS93138  Polypodium scouleri M. Wetherwax 1992-5-20 2434 Humboldt Patrick's Point State Park. Coastal bluff S side of Wedding Rock 30 Comment
  CAS-BOT-BC72086  Polypodium scouleri Doris K. Kildale 1926-7-22 2412 Humboldt near Canyon Park Comment
  HSC1130  Polypodium scouleri W. R. Supernaugh, Jr. 1964-12-11 14 Humboldt 300 yards S of Trinidad Harbor 9 Comment
  UCSB30619  Polypodium scouleri Edwards, David 1974-9-2 Humboldt Ca. 100 ft. up facing slope from dirt road, ca. 100 yds. from its jet. with Fickle Hill Rd 121 Comment
  CAS-BOT-BC233071  Polypogon interruptus Joseph P. Tracy 1927-7-16 8261 Humboldt Eureka 60 Comment
  CAS-BOT-BC233073  Polypogon interruptus Joseph P. Tracy 1927-7-16 8259 Humboldt Eureka 60 Comment
  CAS-BOT-BC233075  Polypogon interruptus Henry M. Pollard 1946-8-10 s.n. Humboldt Roadside, S of Klamath River and E of Perch Creek, Orleans region Comment
  HSC10829  Polypogon interruptus Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  POM252888  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile NE of Samoa 3 Comment
  UC1103193  Polypogon interruptus Joseph P. Tracy 1927-8-7 8320 1/2 Humboldt opposite mouth of Willow Creek Lack Pond (in Trinity River Valley); Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC1541571  Polypogon interruptus Harold E. Parks August 1924 Humboldt Eureka Comment
  HSC11740  Polypogon monspeliensis Jerry Parker 1968-11-19 241 Humboldt Clam beach in stream bed of Strawberry Creek. Comment
  UC183446  Polypogon monspeliensis J. P. Tracy 1912-10-20 3996 Humboldt near Loleta 30 Comment
  HSC99526  Polystichum lonchitis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 190 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1372 Comment
Read comments
May 14 2014
  SDSU276  Polystichum munitum D. R Harvey 1938-8-13 2251 Humboldt Redwood Park. Comment
  HSC91600  Polystichum munitum E. Mackey 1986-10-2 Humboldt Patrick's Point State Park by trail to Agate Beach Comment
  HSC12699  Potentilla anserina subsp. pacifica Jana Kattenhorn 1970-10-7 12 Humboldt McKinleyville Dunes at end of Murray Rd. Comment
  UC585622  Potentilla anserina subsp. pacifica Joseph P. Tracy 1934-7-30 13509 Humboldt along coast in front South End of Stone Lagoon (Dry Lagoon); , in front of South End Stone Lagoon 3 Comment
  HSC97733  Potentilla anserina subsp. pacifica Kevin Thomas 2004-4-7 12 Humboldt Z St., along McDaniel slough Comment
  JEPS24329  Potentilla anserina subsp. pacifica Lincoln Constance 1934-6-18 903 Humboldt near South Fork R.R. Station and P.O. (border of North Dyerville Flat); South Fork Eel River, Bull Creek Region Comment
  HSC63880  Potentilla drummondii M. A. Baker 1979-6-27 922 Humboldt Edge of Hoopa Indian Reservation Comment
  HSC101969  Potentilla gracilis var. fastigiata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 865 Humboldt Patterson Meadows 1566 Comment
  HSC97917  Potentilla gracilis var. gracilis Cara Witte 2007-6-14 287 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  HSC54230  Prosartes hookeri Griswold, Butler 1979-7-12 7297 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC61166  Prosartes hookeri T. Jimerson, J. Pageau 1979-7-31 701 Humboldt Near Whiting Ridge. Close to the town of Hyampom, CA. 1204 Comment
  HSC15472  Prosartes smithii T. W. Beck 1963-5-10 45 Humboldt Camp Bauer, Korbel Comment
  SEINET13947064 Image available Prunella vulgaris W. J. Ferlatte, B. D. Rogers 1966-1 2083 Humboldt 1 mi E of Forest Glen; 2400 ft alt., T29E, R8E, SEC19 732 Comment
  HSC23488  Prunella vulgaris subsp. lanceolata R. A. Vanbianchi 1971-9-24 87 Humboldt Comment
  UCR122359  Prunella vulgaris var. lanceolata George K. Helmkamp, E. A. Helmkamp 2001-7-8 6981 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  SD93030  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 226 Humboldt Highway 101 near Dyerville. 60 Comment
  UC1321003  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-21 636 Humboldt s Weott (Burlington Residence Area and Campground, Humboldt Redwoods State Park); Humboldt Redwoods State Park Comment
  CAS-BOT-BC158598  Prunus C. Hart Merriam 1921-7-7 s.n. Humboldt Ridge west of the Van Duzen River Comment
  UC198603  Prunus emarginata Joseph P. Tracy 1917-5-6 4780 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC249638  Prunus emarginata Joseph P. Tracy 1922-9-17 6116 Humboldt North Fork Mad River, at Korbel North Fork Mad River; Northern Coast Region, , Korbel 30 Comment
  UC492201  Prunus emarginata Joseph P. Tracy 1932-7-13 10527 Humboldt at Corral Prairie, Trintiy Summit, Klamath Mountains Corral Prairie; Klamath Mountains, Trintiy Summit 1524 Comment
  JEPS34048  Pseudognaphalium californicum Lincoln Constance 1934-6-14 875 Humboldt near Lookout Pt. (w side of Look Prairie); South Fork Eel River, Bull Creek Region, Look Prairie Comment
  JEPS20501  Pseudognaphalium stramineum Lincoln Constance 1934-5-26 665 Humboldt s end Dyerville Bridge (sand and gravel bar of river); South Fork Eel River 45 Comment
  CAS-BOT-BC80108  Pseudotsuga menziesii Doris K. Kildale 1927-4-17 3069 Humboldt Bug Creek - Upper Mad River 792 Comment
  CAS-BOT-BC80120  Pseudotsuga menziesii Doris K. Kildale 1926-11-27 2840 Humboldt Alton Hill, old terrace above lower Van Duzen River Comment
  HSC45284  Psilocarphus brevissimus R. W. Becking 1978-5-21 Humboldt Coast Guard Station on the N Spit to Humboldt Bay in bunker area Comment
  UC1103804  Psilocarphus tenellus J. P. Tracy 1903-8-9 1942 Humboldt immediate vicinity Euerka; Eureka 0 Comment
  HSC55176  Pteridium aquilinum var. pubescens Gilbert Muth 1979-8-1 12178 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC55265  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-8-2 12617 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  HSC40122  Pterospora andromedea Thomas W. Nelson, James Nelson 1976-7-28 3071 Humboldt Along small creek E of old road from Goat Mountain lookout to branch road of FS 2S08 N of Alder Springs. 1555 Comment
  HSC76588  Pyrola asarifolia subsp. bracteata Michael Ericksen 1981-8-31 1112 Humboldt Near Last Chance Trail 1335 Comment
  HSC44342  Pyrola dentata Brad Klipfel 1975-6-17 687 Humboldt Horse Mtn. Comment
  HSC45423  Pyrola dentata Thomas W. Nelson, Jane Nelson 1977-7-4 3584 Humboldt W side of road N of Alder Springs, head of N Fork of Conley Creek 1494 Comment
  HSC98808  Pyrola dentata Cara Witte 2008-7-30 980 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N32E. 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
  UC412726  Pyrola picta P. E. Goddard Jun 1 1906-Jul 1 1906 687 Humboldt Blocksburg Comment
  HSC41321  Quercus chrysolepis Brad Klipfel 1974-9-2 526 Humboldt Horse Mountain Comment
  HSC8335  Quercus chrysolepis Elrid H. Spinas 1948-5-22 36 Humboldt Horse Mtn. Comment
  HSC99510  Quercus chrysolepis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 172 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
  RSA178558  Quercus chrysolepis Joseph P. Tracy 1950-8-4 19256 Humboldt Summit of ridge northeast of the lookout station, Grasshopper Peak (in Bull Creek State Park) at head of Canoe Creek. Comment
  UCD82872  Quercus chrysolepis Rodney Gale Myatt 1971-9-21 1185 -14 Humboldt Near Orleans, northeast of Hoopa Reservation, along Klamath River. 185 Comment
  UC405495  Quercus chrysolepis P. E. Goddard 1907-6-16 122 b Humboldt Van Duzen Comment
  CAS-BOT-BC94306  Quercus garryana Roxana S. Ferris 1955-7-11 12973 Humboldt Summit of US Highway 299 betw. Willow Creek and Blue Lake Comment
  CAS-BOT-BC105162  Quercus kelloggii Doris K. Kildale 1927-4-16 3023 Humboldt Between Island Mountain and Fort Seward Comment
  CAS-BOT-BC105167  Quercus kelloggii Doris K. Kildale 1928-4-29 5972 Humboldt Horse Mountain Comment
  UC54719  Quercus kelloggii Mrs. M. H. Manning Oct 1901 Humboldt Hupa Comment
  UC672858  Quercus kelloggii Joseph P. Tracy 1940-9-15 16723 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC104334  Quercus sadleriana Doris K. Kildale 1925-8-17 1378 Humboldt Trinity Summit 1917 Comment
  JEPS37674  Quercus sadleriana W. L. Jepson Jul 16 1902-Jul 23 1902 2033 Humboldt just below Trinity Summit 2133 Comment
  OBI14233  Quercus sadleriana Carl B. Wolf 1937-8-13 9261 Humboldt North Coast Range, 12 mi E of Hoopa Valley on New road towards Trinity summit 1676 Comment
  HSC54519  Quercus vacciniifolia Overton, Butler 1979-7-23 9446 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  JEPS38033  Quercus vacciniifolia W. L. Jepson Jul 16 1902-Jul 23 1902 2061 Humboldt trail to the Devil's Backbone Trinity Summit 2133 Comment
  SFV17761  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine. 1463 Comment
  UC212981  Quercus vacciniifolia Joseph P. Tracy 1919-9-23 5286 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC180641  Quercus wislizeni Joseph P. Tracy 1914-5-14 4458 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC164804  Rafinesquia californica Joseph P. Tracy 1901-8-2 1243 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC26634  Ranunculus alismifolius var. alismifolius Thomas W. Nelson 1971-5-31 452 Humboldt Vernal pond Comment
  UC1103010  Ranunculus flammula Joseph P. Tracy 1930-8-3 9149 Humboldt pond near Little Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  RSA85287  Ranunculus flammula var. ovalis F. W. Peirson 1923-7-11 3726 Humboldt 7 miles N of Arcata. Comment
  HSC98182  Ranunculus muricatus D. E. Anderson 1965-5-1 3586 Humboldt Hwy. 96 about 2 mi. S of Weitchpec Comment
  HSC70330  Ranunculus occidentalis M. A. Baker 1980-6-8 1885 Humboldt Near Buck Flat. 1554 Comment
  HSC74375  Ranunculus occidentalis M. A. Baker 1980-6-28 2482 Humboldt Near Mad River Buttes 1445 Comment
  JEPS60699  Ranunculus occidentalis W. L. Jepson 1934-5-7 16703 Humboldt Buckeye Prairie Bull Creek Comment
  HSC39419  Ranunculus occidentalis var. occidentalis Thomas W. Nelson, Jane P. Nelson 1976-6-15 2712 Humboldt Along trail from lookout to Blocksburg 1555 Comment
  UC1196247  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1911-6-30 3273 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1196246  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1930-6-29 8817 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of its nw slope, in stream-bed) 762 Comment
  HSC69865  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson 1978-5-28 4089 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UC1713273  Ranunculus pusillus Joseph P. Tracy 1919-5-31 5177 Humboldt opposite Willow Creek (shores of pond); Northern Coast Regions, Trinity River, Lack Pond 152 Comment
  JEPS79962  Ranunculus repens Joseph P. Tracy 1918-4-7 4868 Humboldt Little River Northern Coast Ranges (mouth) 30 Comment
  HSC18109  Ranunculus repens var. repens S. R. Johnson 1965-3-28 33 Humboldt 1.0 mi. N of Luffenholtz Beach Comment
  HSC29783  Ranunculus repens var. repens Thomas W. Nelson 1970-6-11 602 Humboldt Adjacent to 4244 Fairway Dr., Eureka Comment
  JEPS55000  Ranunculus uncinatus Joseph P. Tracy 1916-5-7 4687 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC1196272  Ranunculus uncinatus J. P. Tracy 1901-5-5 1065 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA167446  Rhamnus californica Joseph P. Tracy 1950-6-18 18848 Humboldt Near Petrolia, Hills betw town and Ocean Comment
  UC1197993  Rhamnus californica Joseph P. Tracy 1937-7-11 15418 Humboldt Garberville 152 Comment
  UC1222628  Rhamnus californica Joseph P. Tracy 1950-6-18 18848 Humboldt near Petrolia (hills between town and ocean) Comment
  UC198576  Rhamnus purshiana Joseph P. Tracy 1917-9-2 4847 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  UC592852  Rhamnus purshiana Doris Kildale Gillespie 1932-9-1 Humboldt 1 block n Henderson St. (on S Street, Eureka); Eureka 30 Comment
Read comments
Mar 1 2013
  HSC7831  Rhododendron columbianum J. Pursell 1964-10-6 1061 Humboldt Big Lagoon Bog Comment
  CAS-BOT-BC56608  Rhododendron macrophyllum A. A. Heller 1937-6-8 15898 Humboldt in the forest at Bishop Pine Lodge, 3 miles north of Trinidad Comment
  CAS-BOT-BC200385  Rhododendron occidentale var. paludosum Doris K. Kildale 1928-7-1 5305 Humboldt French Camp - Orick-Martin's [Martins] Ferry road Comment
  HSC41281  Rhododendron occidentale var. paludosum Brad Klipfel 1974-6-25 442 Humboldt Horse Mtn. Comment
  HSC47966  Rhododendron occidentale var. paludosum Brad Klipfel 1974-9-17 582 Humboldt Horse Mountain Comment
  UC199535  Rhus trilobata Chestnut and Drew 1888-7-23 Humboldt Hyampom Comment
  CAS-BOT-BC433136  Ribes Doris K. Kildale; L. B. Kildale 1930-5-5 9555 Humboldt Bug Creek, Chaparral Mt. Comment
  UC902084  Ribes bracteosum Joseph P. Tracy 1949-6-6 18299 Humboldt ne Hawkin's Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  BLMAR564  Ribes inerme Jennifer Wheeler 2010-3-29 564 Humboldt Headwaters Forest Reserve, along Elk River Trail within first mile, east side trail 42 Comment
  UC1198951  Ribes inerme var. klamathense Joseph P. Tracy 1935-5-30 13915 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC97283  Ribes laxiflorum M. Mesler 2007-3-23 745 Humboldt Near Trinidad, trail from Mill Creek to Elk Head. 61 Comment
  HSC98554  Ribes lobbii Cara Witte 2008-6-18 742 Humboldt 2 miles north of the intersection between National Forest 1 and Friday Ridge Road/ 6N08 1580 Comment
  HSC99367  Ribes lobbii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 16 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1198926  Ribes lobbii Joseph P. Tracy 1932-7-17 10666 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UC1198927  Ribes lobbii Joseph P. Tracy 1913-7-20 4385 Humboldt near summit of ridge between Three Creeks and Redwood Creek (Three Creeks side); Northern Coast Ranges 1066 Comment
  UC1541294  Ribes lobbii W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  UC667057  Ribes lobbii Joseph P. Tracy 1933-7-11 12697 Humboldt Grouse Mountain 1524 Comment
  RSA0021640  Ribes malvaceum E. K. Balls, P. C. Everett 1953-10-11 18627 Humboldt S. boundary Eel River Lodge, 4.3 mi. N of Richardson s Grove, Highway 101. 152 Comment
  CSUSB1881  Ribes menziesii Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  HSC20314  Ribes menziesii E. W. Styskel 1963-3-3 3 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  SBBG72058  Ribes menziesii H. E. Parks -Apr-1933 4402 Humboldt McNeils Crk, vicinity of Trinidad Comment
  UC183577  Ribes menziesii Joseph P. Tracy 1912-3-31 3568 Humboldt Blue Lake Northern Coast Ranges 30 Comment
  UC552232  Ribes menziesii Joseph P. Tracy 1934-8-11 13565 Humboldt 2 mi e Arcata (Fickle Hill); North Coast Ranges 304 Comment
  RSA0021774  Ribes menziesii L. R. Abrams, R. C. Bacigalupi 1922-6-25 8289 Humboldt Bluffs north of Big Lagoon near Orick. Comment
  UC492211  Ribes nevadense Joseph P. Tracy 1932-7-18 10716 Humboldt head Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC198901  Ribes roezlii var. cruentum Thomas W. Nelson; Jane P. Nelson 1977-5-30 3418 Humboldt Growing beside State Route 36 just west of Dinsmore at highway bridge over Van Duzen River 731 Comment
  CAS-BOT-BC198903  Ribes roezlii var. cruentum Carl B. Wolf 1941-2-26 9965 Humboldt 1 4/10 mi. below Weitchpec on Rd. to Klamath River 304 Comment
  CAS-BOT-BC198905  Ribes roezlii var. cruentum D. H. Norris 1970-5-20 12217 Humboldt Crest of ridge on Big Hill Road east of Hoppa at streambed. Comment
  RSA0024586  Ribes roezlii var. cruentum Robert F. Thorne, P. C. Everett 1965-8-5 35142 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  HSC33053  Ribes sanguineum Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1241 Humboldt Horse Mtn. area 1220 Comment
  HSC71583  Ribes sanguineum Gail Newton 1980-6-16 188 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC144686  Ribes sanguineum var. glutinosum Lincoln Constance; Reed Rollins 1942-5-11 2866 Humboldt Near summit 8 miles east of Blue Lake Comment
  HSC89543  Ribes sanguineum var. glutinosum M. Roantree 1985-5-7 41 Humboldt SW side of Trinidad Head, along trail Comment
  CAS-BOT-BC173988  Ribes viscosissimum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  UC1198918  Ribes viscosissimum Joseph P. Tracy 1932-7-15 10606 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  HSC32923  Rigiopappus leptocladus Thomas W. Nelson, James Nelson 1973-5-28 969 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS1252  Romanzoffia californica Joseph P. Tracy 1909-5-16 2970 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  UC1222365  Romanzoffia californica Joseph P. Tracy 1950-6-15 18818 Humboldt at Huestis Rock on n.e. side Mail Ridge Comment
  CAS-BOT-BC74511  Rorippa curvisiliqua Henry M. Pollard 1946-8-10 s.n. Humboldt Klamath River, near Wilson Creek, Orleans region. Comment
  UCD115287  Rorippa curvisiliqua Malcolm A. Nobs; S. Galen Smith 1949-8-9 1238 Humboldt on southern side of the town of Blue Lake. Comment
  JEPS53810  Rorippa nasturtium-aquaticum Lincoln Constance 1934-5-29 735 Humboldt Upper Look Prairie , South Fork Eel River, Upper Look Prairie (Bull Creek Region) 365 Comment
  UC183752  Rosa eglanteria Joseph P. Tracy 1912-8-4 3981 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC146498  Rosa gymnocarpa Ira L. Wiggins 1930-7-22 4695 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  HSC99635  Rosa gymnocarpa T. Jimerson, J. Pageau 1979-6-13 543 Humboldt Near Slate Creek Butte, close to the town of Orleans 549 Comment
  JEPS45670  Rosa gymnocarpa Joseph P. Tracy 1923-5-31 6241 Humboldt Eureka Northern Coast Ranges 0 Comment
  JEPS48709  Rosa gymnocarpa Hilda W. Grinnell 1932-7-9 1 Humboldt McKay Camp So. Fork Mt. 1676 Comment
  RSA2936  Rosa gymnocarpa Carl B. Wolf 1931-8-30 2376 Humboldt 11 miles above Blue Lake on the Lord Ellis Road to Willow Creek 305 Comment
  UC162329  Rosa gymnocarpa Joseph P. Tracy 1911-6-4 3218 Humboldt along river 5 mi from the coast; Northern Coast Region, Little River 121 Comment
  CAS-BOT-BC146835  Rosa nutkana Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  SEINET11912081  Rosa pinetorum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -312 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Road 150 Comment
  JEPS45699  Rosa pisocarpa Joseph P. Tracy 1923-9-16 6550 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC99308  Rosa rubiginosa C. B. Wolf 1927-8-30 1251 Humboldt 3 mi. S of Thorn along old coast road Comment
  HSC60308  Rubus armeniacus J. P. Smith, Steve Selva 1970-6-14 3850 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC55979  Rubus lasiococcus G. L. Clifton 1979-7-31 11373 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  JEPS47293  Rubus lasiococcus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9021 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1199044  Rubus lasiococcus Joseph P. Tracy 1947-6-26 17746 Humboldt near McKay camp (South Fork Mountain); , near McKay camp 1676 Comment
  CAS-BOT-BC148388  Rubus leucodermis L. R. Abrams 1918-6-16 7144 Humboldt Willow Creek Comment
  HSC40017  Rubus leucodermis Thomas W. Nelson, Jane P. Nelson 1976-7-1 2920 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC57115  Rubus leucodermis Overton, Butler 1979-7-25 9858 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC101456  Rubus leucodermis var. leucodermis Cara M. Witte 2008-8-6 997 Humboldt Board Camp Mountain. Approx. 1 mile south of intersection of 4N38 and National Forest 1 1416 Comment
  CAS-BOT-BC147246  Rubus parviflorus Doris K. Kildale 1928-6-15 5231 Humboldt Iaqua Comment
  CHSC19737  Rubus parviflorus R. J. Vernimen 1963-5-11 51 Humboldt Clam Beach Lagoons, 10 miles N. of Arcata. Comment
  HSC19661  Rubus parviflorus D. A. Shally 1965-5-15 53 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC56140  Rubus parviflorus G. L. Clifton, Griswold 1979-8-1 11961 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC57011  Rubus parviflorus Overton, Butler 1979-7-24 9604 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC81965  Rubus parviflorus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4944 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  CAS-BOT-BC156721  Rubus spectabilis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  CAS-BOT-BC156723  Rubus spectabilis Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  CAS-BOT-BC156725  Rubus spectabilis Doris K. Kildale 1927-4-10 3081 Humboldt Prairie Creek, between Orick & Requa Comment
  CHSC19491  Rubus spectabilis B. D. Rogers; D. E. Anderson 1965-4-1 312 Humboldt About 4 miles southeast of Arcata, along Jacoby Creek. Comment
  HSC19681  Rubus spectabilis J. L. Baker 1965-4-13 50 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N bank Rd. Comment
  HSC31034  Rubus spectabilis G. D. Wallace, Larry E. DeBuhr 1972-3-29 1010 Humboldt Prairie Creek Redwoods State Park in campground Comment
  RSA245291  Rubus spectabilis J. D. Ackerman, A. M. Montalvo 1973-3-27 41 Humboldt 1.5 miles N of Manila Comment
  RSA613682  Rubus spectabilis var. franciscanus D. D. Keck, J. Clausen 1935-6-16 3394 Humboldt Mouth of Little River. Comment
  CAS-BOT-BC156578  Rubus ulmifolius Joseph P. Tracy 1940-10-17 16762 Humboldt South Fork Station (near Dyerville) 48 Comment
  CAS-BOT-BC158791  Rubus ursinus Doris K. Kildale 1927-5-13 3139 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC158793  Rubus ursinus Kenneth Clark 1980-6-14 683 Humboldt Upper alluvial terrace of north fork Dead Man's Gulch, Shelter Cove 106 Comment
  HSC40001  Rubus ursinus J. O. Sawyer 1970-6-27 2308 Humboldt Site 318. 1494 Comment
  HSC55306  Rubus ursinus Griswold, Butler 1979-7-11 6907 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  JEPS44749  Rubus ursinus W. L. Jepson 1902-7-1 1965 Humboldt Hupa Road near Redwood Creek; near Redwood Creek, Hupa Road Comment
  UCD17613  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 052 Humboldt California. Humboldt County: 27.8 miles from Ettersburg toward Dyerville. 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
  HSC56448  Rudbeckia klamathensis Griswold, Butler 1979-7-12 7201 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1199269  Rudbeckia occidentalis Joseph P. Tracy 1932-7-20 10727 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  SEINET5710897  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC76605  Rumex acetosella Denis Kearns 1981-7-22 323 Humboldt Near Whiteys Peak 1487 Comment
  HSC17575  Rumex acetosella Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  HSC45490  Rumex acetosella Maralyn O'Meara 1972-6-8 101 Humboldt Along Bald Hills Rd. 18 mi. E of junction with Hwy. 101 Comment
  HSC48031  Rumex acetosella Brad Klipfel 1974-5-27 404 Humboldt Horse Mtn. Comment
  HSC64435  Rumex acetosella J. P. Smith, Steve Selva 1970-6-30 4101 Humboldt Comment
  UC1101197  Rumex conglomeratus Malcolm A. Nobs, S. Galen Smith 1949-8-9 1236 Humboldt pond on s side of the town of Blue Lake town of Blue Lake Comment
  JEPS39913  Rumex obtusifolius W. L. Jepson 1932-8-2 16476 Humboldt Bull Creek Dyerville Comment
  UCD101361  Rumex occidentalis Joseph P. Tracy 1948-9-12 18208 Humboldt Trinity Summit. Box Camp. 1463 Comment
  UC160951  Rupertia physodes Harley P. Chandler June, 1901 1460 Humboldt Klamath River North Coast Ranges 304 Comment
  UC1115830  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1939-4-18 16212 Humboldt Garberville 152 Comment
  UC161048  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1905-4-30 2172 Humboldt sand dunes of Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  UC1198323  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1911-7-9 3467 Humboldt near mouth Willow Creek (a tributary of Trinity R.); Northern Coast Ranges, Willow Creek (a tributary of Trinity 152 Comment
  SD37464  Salix Edith A. Purer 1932-7-30 4677 Humboldt S of Orick, sand dunes Comment
  UC490586  Salix Joseph P. Tracy 1932-7-31 10286 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  CDA39544  Salix alba Gordon, Sylvia and Kai Leppig 2000-4-16 1297 Humboldt Arcata; Arcata March and Wildlife Sanctuary, west bank of Hauser Marsh. Comment
  CAS-BOT-BC103807  Salix exigua W. R. Dudley 1899-6-21 s.n. Humboldt near bluff below junction of North and South Forks of Eel River Comment
  UC490566  Salix exigua var. hindsiana Joseph P. Tracy 1932-6-14 10151 Humboldt at Willow Creek Trinity River valley; Northern Coast Ranges 152 Comment
  CAS-BOT-BC107704  Salix hookeriana Harold E. Parks 1931-3-26 905 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107720  Salix hookeriana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  CAS-BOT-BC107764  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1214 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CHSC9556  Salix hookeriana E. L. Smith 1971-4-6 926 Humboldt Manila, 4 mi sw of Arcata, on w side of Humboldt Bay opposite Eureka. Comment
  JEPS12947  Salix hookeriana Joseph P. Tracy 1931-10-18 9742 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  LA208757  Salix hookeriana Harold E. Parks; 1931-5-28 999 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  UC1196630  Salix hookeriana J. P. Tracy 1905-3-26 2151 Humboldt Immediate vicinity of Eureka 0 Comment
  UC470426  Salix hookeriana Joseph P. Tracy 1931-11-15 9762 Humboldt Alton to Fortuna (on gravel bars); Northern Coast Region, Eel River 15 Comment
  UC470431  Salix hookeriana Joseph P. Tracy 1927-9-25 8382 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  UC470437  Salix hookeriana Joseph P. Tracy 1931-10-18 9738 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC504054  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 4 Humboldt around Eureka Eureka Comment
  UC512090  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1217 Humboldt 1 mi s Samoa (pine barrens near coast) Comment
  UC512095  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1214 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  RSA0034647  Salix hookeriana Harold E. Parks, Susan T. Parks 1932-4-7 01103 Humboldt Little River Lagoon, Trinidad. Comment
  RSA0034665  Salix hookeriana var. tomentosa Harold E. Parks 1931-5-12 0952 Humboldt Samoa, Humboldt Bay. 0 Comment
  UCSB10844  Salix laevigata Bracelin, H. 1931-5-1 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  UC1196579  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1939-5-6 16280 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity R. Valley 152 Comment
  CAS-BOT-BC125217  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1122 Humboldt North bank of Mad River 1/4 mi. east of hwy. 101 6 Comment
  LA208824  Salix lasiandra var. lasiandra Harold E. Parks; 1931-5-14 959 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  CAS-BOT-BC107581  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-13 1255 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107583  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-13 1254 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107585  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-12 1244 Humboldt Floodplain of Van Duzen River at Blue Slide 91 Comment
  HSC19990  Salix lasiolepis R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1358 Humboldt 1.5 mi. E of Blue Lake on Hwy. 299 Comment
  JEPS12946  Salix lasiolepis Joseph P. Tracy 1931-10-3 9707 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  JEPS14764  Salix lasiolepis Joseph P. Tracy 1932-8-27 10753 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  POM161044  Salix lasiolepis Joseph P. Tracy 1926-8-12 7758 Humboldt Redwood Creek. At Berry's. Comment
  SJSU222  Salix lasiolepis H. E. Parks 1931-5-14 963 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  UC470415  Salix lasiolepis Joseph P. Tracy 1931-10-3 9702 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC481175  Salix lasiolepis Harold E. and Susan T. Parks 1931-8-15 1079 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 100 Comment
  UC481315  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC490548  Salix lasiolepis Joseph P. Tracy 1932-4-24 9805 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  SEINET12003294  Salix lasiolepis J. P. Tracy 1950-1 19374 Humboldt Klamath River near Slate Creek Comment
  CAS-BOT-BC107287  Salix lasiolepis var. bigelovii Joseph P. Tracy 1933-3-19 10934 Humboldt along Van Duzen R. 228 Comment
  CAS-BOT-BC107409  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3144 Humboldt Redwood Creek at Berry's 289 Comment
  RSA10903  Salix lasiolepis var. sandbergii Joseph P. Tracy 1933-4-2 10959 Humboldt Berry's Mountain. On Trinity Hwy. E of Redwood Creek. 762 Comment
  JEPS12972  Salix melanopsis Joseph P. Tracy 1931-9-7 9644 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  SD978  Salix melanopsis Harold E. Parks 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  SJSU181  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  UC1196573  Salix melanopsis Joseph P. Tracy 1931-10-3 9703 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481170  Salix melanopsis Harold E. Parks 1931-8-25 1061 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC481266  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Roosevelt Hwy. Bridge; Little River Lagoon Comment
  UC481286  Salix melanopsis Harold E. Parks 1931-5-14 961 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC481289 Image available Salix melanopsis Harold E. Parks 1931-5-14 962 Humboldt between Alton and Carlotta; Van Duzen River; Van Duzen River, Humboldt Co. 15 Comment
  UC481310  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 974 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC519374  Salix melanopsis Joseph P. Tracy 1933-6-9 12532 Humboldt along Eel R. Shively; Northern Coast Ranges, , Eel R. 30 Comment
  CAS-BOT-BC129201  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1210 a Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad, appraximately at sea level. Comment
  CAS-BOT-BC129203  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 1231 Humboldt Floodplain of the Van Duzen River, 1 1/2 miles east of Alton 30 Comment
  CAS-BOT-BC129205  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 1251 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC129127  Salix scouleriana A. T. Whittemore 1979-4-5 79 -012 Humboldt Arcata, cleared field along Alliance Road immediately north of Arcata High School 6 Comment
  CAS-BOT-BC129172  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  POM160284  Salix scouleriana Joseph P. Tracy 1926-7-25 7753 Humboldt Big Lagoon 6 Comment
  SBBG57987  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen River 450 Comment
  UC1173576  Salix scouleriana Joseph P. Tracy 1936-2-2 14767 Humboldt vicinity of Carlotta 30 Comment
  UC490504  Salix scouleriana Joseph P. Tracy 1932-2-7 9771 Humboldt Scotia Northern Coast Ranges, Scotia 30 Comment
  UC506513  Salix scouleriana B. S. and C. S. Ball 1932-9-12 2532 Humboldt 2 mi. n. Trinidad (home of Mr. and Mrs. Harold E. Parks) Comment
  CAS-BOT-BC128998  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  HSC90419  Salix sitchensis Jean Hanson 1980-3-8 26 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC1173577  Salix sitchensis Joseph P. Tracy 1936-6-27 15007 Humboldt along S. Fork Eel R. Miranda; S. Fork Eel R. 91 Comment
  UC1196724  Salix sitchensis Joseph P. Tracy 1926-2-21 7356 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC1600860  Salix sitchensis Joseph P. Tracy 1933-10-8 13086 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  CDA39587  Salix sitchensis Gordon Leppig 2005-4-8 2206 Humboldt North Spit Swamp, west side of highway. Comment
  RSA114994  Sambucus callicarpa E. K. Balls, L. W. Lenz 1955-5-15 20735 Humboldt 7.7 miles southwest from Ferndale along Old Coast Road to Capetown 518 Comment
  RSA407351  Sambucus callicarpa Lyman Benson 1973-08 815 Humboldt Weott Ranger Station 61 Comment
  HSC89426  Sambucus racemosa var. racemosa P. A. Daly 1984-5-8 5 Humboldt Trinidad Head. 61 Comment
  UC1541511  Sambucus racemosa var. racemosa W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  CAS-BOT-BC157199  Sanguisorba officinalis Carl B. Wolf 1934-7-2 5901 Humboldt Snow Camp (mts. E. of Korbel), near small lake 1371 Comment
  UC154052  Sanicula arctopoides J. P. Tracy 1900-6-5 852 Humboldt immediate vicinity of Eureka (at Bucksport); Bucksport 0 Comment
  JEPS220  Sanicula bipinnatifida Lincoln Constance 1934-6-3 806 Humboldt road from High Rock to Horse Prairie ((<High Rock> on Redwood Hwy, 1 mi n of Dyerville)); South Fork Eel River, Bull Creek Region Comment
  SEINET12119553  Sanicula crassicaulis J. P. Tracy 1950-1 19023 Humboldt Sproston's Place, 3 mi S of Burr Valley 1067 Comment
  HSC55730  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10214 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  UC1197085  Sanicula laciniata Joseph P. Tracy 1923-6-20 6343 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  HSC44234  Sanicula tracyi B. Reinhardt 1975-7-17 801 Humboldt Six Rivers National Forest: Snow Camp area. Comment
  OBI55124  Sanicula tracyi Joseph P. Tracy 1947-6-25 17717 Humboldt Dinsmore's along Van Duzen Rivers opposite Black Mtn 762 Comment
  UC1197326  Sanicula tracyi Joseph P. Tracy 1913-6-19 4202 Humboldt opposite Buck Mtn (Dinsmore's Ranch); North Coast Ranges, Van Duzen River Valley 762 Comment
  UC1197327  Sanicula tuberosa Joseph P. Tracy 1930-6-21 8780 Humboldt Northern Coast Ranges, Laribee Valley Laribee Valley; Northern Coast Ranges, Laribee Valley 792 Comment
  UC492230  Saxifraga marshallii Joseph P. Tracy 1927-5-13 7997 Humboldt Willow Creek Canyon,at mouth of East Fork of Willow Creek Willow Creek Canyon; Northern Coast Ranges, , Willow Creek 457 Comment
  CDA18245  Scirpus microcarpus G. D. Barbe, T. C. Fuller 1974-6-19 1883 Humboldt North Coast Ranges; Arcata, US Hwy 101 at Saint Louis Rd. 12 Comment
  HSC91622  Scirpus microcarpus E. Mackey 1986-7-21 Humboldt Patrick's Point State Park Comment
  SBBG88776  Scirpus microcarpus A. Keedy 1988-9-28 14 Humboldt Alder Grove Rd near Hwy 299, N of Arcata Comment
  SEINET11754828  Scirpus microcarpus J. P. Tracy 1949-1 18533 Humboldt Dusky's Spring, Trinity River Valley, Willow Creek 152 Comment
  HSC15632  Scoliopus bigelovii F. B. Plett 1963-4-24 30 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  SEINET3991333  Scoliopus bigelovii Unknown 1922-5-14 6049 Humboldt Kneeland Prairie 762 Comment
  HSC15639  Scoliopus bigelovii D. E. Anderson 1964-2-23 2904 Humboldt Near Indian Creek on Kneeland-Bridgeville Rd. Comment
  HSC15640  Scoliopus bigelovii E. W. Styskel 1963-3-9 6 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  POM160835  Scoliopus bigelovii Joseph P. Tracy 1924-3-9 6615 Humboldt Lawrence Creek, near Kneeland Prairie; Plants of Northern Coast Ranges. 610 Comment
  RSA24328  Scoliopus bigelovii Carl B. Wolf 1941-2-28 9973 Humboldt 1.3 miles east of Redwood Creek Bridge. On the Blue Lake to Willow Creek Road. 244 Comment
  SEINET926248  Scoliopus bigelovii Joseph P. Tracy 1950-1 18611 Humboldt 1 mile west of Dinsmore's. Along Van Duzen River, opposite Buck Mountain. 762 Comment
  SEINET10548800  Scrophularia californica Charlene A. Bennett 1976-8-6 Bennett 480 Humboldt Collected by hwy 101, n side of orick, rocky area, densely forested by river. Comment
  UC25792  Scutellaria antirrhinoides Harley P. Chandler June, 1901 1323 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC40873  Scutellaria californica Thomas W. Nelson 1976-7-9 3010 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  HSC99057  Sedum laxum subsp. flavidum Cara Witte 2008-7-11 873 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC40703  Sedum laxum subsp. heckneri Thomas W. Nelson, Jane P. Nelson 1976-7-1 2898 Humboldt Along ridge N of Bear Creek 1463 Comment
  JEPS109415  Sedum laxum subsp. heckneri D. W. Taylor 2004-6-24 19137 Humboldt Clear Lake, along Titlow Hill road. Comment
  UC492242  Sedum obtusatum subsp. boreale Joseph P. Tracy 1932-7-17 10692 Humboldt head Devil's Hole (Trinity Summit, Klamath Mountains); Klamath Mountains, Trinity Summit, head Devil's Hole 1828 Comment
Read comments
Aug 17 2011
  HSC70725  Sedum radiatum Gail Newton 1980-7-14 1520 Humboldt Near Deadman Ridge 1097 Comment
  JEPS48045  Sedum radiatum Joseph P. Tracy 1926-7-5 7726 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  UCD39981  Sedum spathulifolium Rodney Gale Myatt 1971-9-22 1203 Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  HSC92016  Sedum spathulifolium var. pruinosum E. Mackey 1987-9-7 Humboldt Patrick's Point State Park Comment
  UC249773  Selaginella wallacei Joseph P. Tracy 1924-3-9 6607 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC98904  Selaginella wallacei Cara Witte 2008-6-7 686 Humboldt Horse Mountain Botanical Area. 1/4 mile west of intersection between National Forest 1 and Forest Service Roads 6N36, 6N38. 1426 Comment
  UC1239503  Senecio glomeratus Joseph P. Tracy 1938-6-7 15856 Humboldt 5 mi se Korbel; Canyon Creek 152 Comment
  SJSU8451  Senecio minimus H. T. Harvey 1977-8-8 620 Humboldt delta lands of Eel R c. 4 mi NW of Ferndale Comment
  HSC57035  Senecio triangularis Overton, Butler 1979-7-24 9667 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC74001  Senecio triangularis M. A. Baker 1980-7-22 3106 Humboldt Near Grogan Hole. 1676 Comment
  UC581710  Senecio triangularis Joseph P. Tracy 1932-7-13 10523 Humboldt Corral Prairie , Corral Prairie (Trinity Summit) 1584 Comment
  UCR37913  Senecio triangularis D. K. Imper 1982-7-23 1481 Humboldt near Onion Lake 1371 Comment
  UC1223185  Senecio vulgaris Joseph P. Tracy 1943-11-28 17454 Humboldt Eel River Bar at mouth Van Duzen (near Alton); Eel River Bar at mouth of Van Duzen Comment
  HSC90383  Senecio vulgaris Jean Hanson 1980-4-12 48 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island. Comment
  CAS-BOT-BC85845  Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-11-1 s.n. Humboldt On flood plain of the Founders' Grove, Humboldt Redwoods State park Comment
  HSC85743  Sequoia sempervirens R. W. Becking 1985-1-17 Humboldt HSU Campus, Hse. 87 Comment
  UC168950  Sherardia arvensis Joseph P. Tracy 1899-5-27 214 Humboldt Eureka Northern Coast Region (on Russ Claim) 0 Comment
  CAS-BOT-BC205577  Sidalcea malachroides F. H. Utech 1986-5-23 86 -399 Humboldt Ca. 3.0 mi NW of Petrolla on Mattole Road (Humboldt Co. hwy F3C) enroute to Capetown 80 Comment
  RSA168965  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19033 Humboldt Butter Valley Road, 2 miles east of Cameron Hill jct. near Kneeland. Comment
  UC1197963  Sidalcea malachroides Joseph P. Tracy 1936-8-1 15061 Humboldt 6 mi se Korbel (Canyon Creek); , se of Korbel 304 Comment
  UC35225  Sidalcea malachroides Chestnut and Drew 1888-7-8 Humboldt near Arcata; near Arcata Comment
  JEPS79986  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1929-7-4 8626 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  HSC81675  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1980-7-13 6057 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  JEPS67247  Sidalcea malviflora subsp. patula Milo S. Baker 1923-7-20 38 Humboldt Head of Yager Cr. Comment
  RSA144570  Sidalcea malviflora subsp. patula Peter H. Raven, R. Snow 1958-7-20 s.n. Humboldt 2 miles south of jct. of Friday Ridge Road on Titlow Hill Road, near Grouse Mountain Comment
  HSC56404  Sidalcea oregana subsp. spicata Griswold, Butler 1979-7-11 7000 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC1197970  Sidalcea oregana subsp. spicata Joseph P. Tracy 1935-7-27 14275 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC1602151  Sidalcea oregana subsp. spicata Joseph P. Tracy 1919-9-18 5253 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit (along streams in meadows) 1524 Comment
  HSC32097  Silene bolanderi D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5698 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC103771  Silene bolanderi M. R. Mesler 2014-6-4 1633 Humboldt Burr Valley Road near Dinsmore 1014 Comment
  CDA38659  Silene californica B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -C Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 Comment
  SEINET10537655  Silene californica Mary Merello 1993-6-19 Merello 659 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  UC161014  Silene californica Joseph P. Tracy 1911-7-9 3457 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, along Willow Creek 182 Comment
  UC668099  Silene californica Joseph P. Tracy 1938-7-7 16040 Humboldt Grouse Mountain 1524 Comment
  HSC100416  Silene californica Carl C. Marshall Jun 1885 93 Humboldt Hills everywhere. Comment
  POM286443  Silene californica Lyman Benson 1928-7-12 466 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  RSA477842  Silene californica M. O'Mera 1972-6-8 78 Humboldt Along Bald Hills Rd. ca. 16.4 miles E of junction with U.S. 101. Comment
  SEINET6905325  Silene californica Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt About 4 miles southeast of Kneeland. Comment
  UC13584  Silene campanulata subsp. glandulosa W. C. Blasdale 1896-6-8 Humboldt Mad River Comment
  HSC44538  Silene campanulata subsp. greenei Brad Klipfel 1973-7-15 154 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1198363  Silene gallica Joseph P. Tracy 1931-5-3 9352 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  CAS-BOT-BC387079  Silene gallica Doris K. Kildale 1926-5-16 1844 Humboldt Lindsey Creek in Lower Mad River Comment
  HSC100417  Silene gallica Carl C. Marshall May 1885 73 Humboldt Dry soils, roadsides, etc. Comment
  HSC95548  Silene gallica Andrea Pickart 2002-5-20 103 Humboldt Manila Dunes, near Manila Community Services District treatment area 15 Comment
  HSC102545  Silene grayi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1535 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC13555  Silene hookeri W. C. Blasdale 1896-6-8 Humboldt Grahams Grahames ((Grahames?)) Comment
  HSC4170  Silene laciniata subsp. californica Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC4171  Silene laciniata subsp. californica D. E. Anderson 1961-9-2 1768 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  CAS-BOT-BC389059  Silene laciniata subsp. californica H. E. Parks 1930-5-1 0751 Humboldt Vicinity of Hydesville Comment
  UC275484  Silene scouleri subsp. grandis Joseph P. Tracy 1925-8-30 7254 Humboldt Freshwater Lagoon Northern Coast Ranges (Northern Coast Ranges) 60 Comment
  UC180226  Sinapis arvensis Joseph P. Tracy 1914-10-11 4635 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC45588  Sisyrinchium bellum Diane L. Reed 1978-5-27 142 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC98162  Sisyrinchium bellum Brad Klipfel 1973-4-28 12 Humboldt Along Canyon Creek Comment
  RSA366962  Sisyrinchium bellum Bonnie C. Templeton 1964-6-13 10183 Humboldt Near old Highway 101 to Trinidad Comment
  HSC21296  Solanum aviculare A. H. Teshima 1963-4-20 21 Humboldt Moonstone Beach area Comment
  HSC55669  Solanum parishii Overton, Butler 1979-7-25 9873 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  CAS-BOT-BC154215  Solanum umbelliferum H. E. Wilder 1924-4-26 s.n. Humboldt Carlotta Comment
  POM247118  Solidago californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC365436  Solidago elongata Doris K. Kildale 1926-7-11 2369 Humboldt Capetown - Ferndale road near Mountain Glen Comment
  HSC76050  Solidago elongata Overton, Butler 1979-8-2 12539 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  RSA89769  Solidago spathulata P. A. Munz 1954-7-25 19873 Humboldt At Humboldt Lighthouse south of Samoa. Comment
  UC1199319  Solidago spathulata J. P. Tracy 1900-7-4 885 Humboldt opposite Eureka (Samoa); Samoa Comment
  UC1478656  Solidago spathulata Robert F. Thorne 1974-7-29 45070 Humboldt between Humboldt Bay and Pacific Ocean (Samoa Dunes); Samoa Dunes Comment
  UC673080  Solidago velutina subsp. californica Joseph P. Tracy 1940-8-18 16701 Humboldt South Fork Eel River near Bolling Grove; South Fork Eel River 91 Comment
  HSC32524  Soliva sessilis David Johnson 1974-5-2 74 Humboldt Mad River Co. Park, mouth of the Mad River; by the parking lot Comment
  HSC6219  Sonchus asper Paul Shields 1955-6-16 Humboldt HSC Campus Comment
  HSC79453  Sonchus asper Kenneth Clark 1980-4-18 605 Humboldt Along access trail to Deadman's Gulch. 46 Comment
  UC582435  Sonchus oleraceus Joseph P. Tracy 1935-5-16 13805 Humboldt Eureka 30 Comment
  UC526834  Sorghum halepense Joseph P. Tracy 1925-9-6 7263 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  CHSC79893  Spartina densiflora Gordon Leppig; Kai Neader 1999-4-30 1130 Humboldt Humboldt Bay, Eureka. 30 m south of Del Norte St. fishing pier. UTM zone 10, 4517N, 399E. 1 Comment
  UCD92968  Spartina densiflora Phyllis Faber 1983-11-11 s.n. Humboldt Humboldt Bay, Arcata. Comment
  HSC77898  Spergula arvensis R. D. Modafferi 1965-3-14 8 Humboldt 1.3 mi. S of Trinidad on old Hwy. 101 305 Comment
  RSA0098106  Spergularia rubra James Payne Smith 1976-5-27 8814 Humboldt Arcata, corner of 14th and G Street. Comment
  RSA43849  Spiraea douglasii H. M. Pollard 1947-8-19 s.n. Humboldt Klamath River [N of] Redcap Creek. Orleans Region. Comment
  HSC40375  Spiranthes romanzoffiana Linda M. Barker 1976-9-3 1695 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1196402  Spiranthes romanzoffiana Doris Kildale Aug 1925 Humboldt Waterdog Lake Trinity Summit 1889 Comment
  HSC100151  Spirodela polyrhiza M. A. Ericksen 1979-5-29 308 Humboldt Northern-most of Clam Beach ponds 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
  JEPS63052  Stachys ajugoides var. rigida Joseph P. Tracy 1934-7-18 13455 Humboldt Grouse Mountain North Coast Ranges 1615 Comment
  UCLA70846  Stachys ajugoides var. rigida Joseph P. Tracy 1934-7-18 13455 Humboldt Grouse Mountain North Coast Ranges 1615 Comment
  UCLA70847  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UCLA70872  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 A Humboldt Valley of South Yager Creek 762 Comment
  UCLA70888  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-25 Humboldt Dyerville Comment
  UC538019  Stachys arvensis Lyle W. Smith 1934-11-14 Humboldt Arcata Comment
  HSC46038  Stachys mexicana Catherine Chin 1978-5-5 55 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  HSC48678  Stachys rigida var. rigida Brad Klipfel 1973-7-31 250 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS6211  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt n.e. Hawkins Bar (Happy Camp Mt., Trinity Summit Range); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  UC204696  Stephanomeria elata Joseph P. Tracy 1918-9-29 5104 Humboldt 4 mi above mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC32538  Stephanomeria virgata Thomas W. Nelson 1973-8-19 1115 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC40578  Stipa lemmonii Thomas W. Nelson, Jane P. Nelson 1976-6-22 2870 Humboldt SW facing slope on Goat Hill. 1666 Comment
  HSC58409  Stipa lemmonii Terry Griswold, Marvin Butler 1979-7-10 7124 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC97968  Stipa lemmonii var. lemmonii Cara Witte, Michael Scott 2007-6-22 348 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  HSC97390  Stipa lettermanii J. P. Tracy 1932-7-12 10473 Humboldt Trinity Summit, head of Brett Hole 1829 Comment
  HSC58416  Stipa occidentalis var. californica Griswold, Butler 1979-7-12 7217 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1281747  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt rocky outcrops in grassland s airport (about 5 mi e of Kneeland) Comment
  UC302043  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-5-15 7477 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC32317  Streptanthus tortuosus var. tortuosus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5655 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC103966  Streptanthus tortuosus var. tortuosus A. Thoele, Sydney Carothers 1995-7-13 38 Humboldt Six Rivers National Forest; Potato Hill, NE side of Pilot Creek. Take SR1 to jct. with 3N14, walk NW 1.4 mi., then SW 1/3 mi. down ridge 1498 Comment
  HSC48390  Swertia radiata Brad Klipfel 1973-6-10 114 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA1901  Symphoricarpos albus var. laevigatus C. B. Wolf 1930-10-29 1038 Humboldt Old Coast Road at Honeydew Post Office. 152 Comment
  UC1175131  Symphoricarpos albus var. laevigatus P. C. Everett and E. K. Balls 1959-10-25 23959 Humboldt 14 mi w Willow Creek (along U.S. Hwy 299 to Arcata) 502 Comment
  BLMAR211  Symphoricarpos mollis Jennifer Anthony-Wheeler 1996-7-9 211 Humboldt Pilots ridge., grws on ridges, slopes, open woods 1402 Comment
  HSC102040  Symphoricarpos mollis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 943 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  HSC41199  Symphoricarpos mollis Thomas W. Nelson, Jane P. Nelson 1977-8-6 3703 Humboldt Along S side of Lassic Mtn. 1494 Comment
  HSC57900  Symphoricarpos mollis Gilbert Muth 1979-7-31 11487 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  CHSC10151  Symphyotrichum chilense J. W. Johnson 1961-8-23 1048 Humboldt Arcata. Along the sides of the Lanphere County Road by Mad River Slough. Comment
  CAS-BOT-BC99163  Symphyotrichum chilense Carl B. Wolf 1927-8-22 808 Humboldt Along the hills near teh ocean 1 mile south of Orick. 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
  JEPS9922  Synthyris reniformis Charlotte Wilder 1922-3-2 Humboldt roadbanks near Beckwith's Mill; North Coast, Carlotta Comment
  UCD86204  Taeniatherum caput-medusae Eugene C. Whitney 1960-8-4 Humboldt Mary White prop., Fruit Ranch, E/Rainbow Peak, Upper Bear River. Comment
  HSC33751  Tanacetum bipinnatum A. Montalvo 1975-5-24 288 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC95076  Tanacetum bipinnatum Andrea Pickart 2002-7-2 144 Humboldt King Salmon Sand Spit 0 Comment
  SBBG65852  Tanacetum vulgare R. Hartwell 1938-8-9 Humboldt near Eureka Comment
  HSC38883  Tauschia kelloggii J. P. Smith, Steve Selva 1970-6-14 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC63993  Taxus brevifolia Mrs. M. H. Manning 1901-10-1 Humboldt Comment
  UC56716  Tellima grandiflora Harley P. Chandler May 1901 1232 Humboldt Humboldt Bay; North Coast Ranges 121 Comment
  CAS-BOT-BC399768  Thalictrum polycarpum Joseph P. Tracy 1932-6-26 10263 Humboldt Northern Coast Ranges. Valley of South Yager Creek 762 Comment
  UC503058  Thelypteris nevadensis Joseph P. Tracy 1932-7-20 10743 Humboldt Trinity Summit; Klamath Mts. 1371 Comment
  UC667955  Thelypteris nevadensis Joseph P. Tracy 1937-7-25 15556 Humboldt ne of Hawkins Bar (Happy Camp Mt.); Trinity Summit Range 1280 Comment
  JEPS79992  Thermopsis gracilis Joseph P. Tracy 1929-7-4 8612 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  CHSC10101  Thermopsis macrophylla D. E. Anderson 1965-5-15 36926 Humboldt About 7 miles north of Hoops on Bloody Camp Prairie road. Comment
  RSA75601  Thermopsis robusta Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  JEPS54039  Thlaspi montanum var. montanum Joseph P. Tracy 1933-7-25 12885 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  HSC95903  Thuja plicata Will Ferrand 2001-6-17 2 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  CAS-BOT-BC88320  Thysanocarpus curvipes L. B. Kildale 1930-6-1 9763 Humboldt Klamath River at Bluff Creek. Comment
  UC1225754  Thysanocarpus curvipes Joseph P. Tracy 1948-5-31 18005 Humboldt Harris 762 Comment
  HSC55614  Tiarella trifoliata var. unifoliata Overton, Butler 1979-7-23 9503 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UCR3513  Tiarella trifoliata var. unifoliata David Whistler, H. M. Whistler 1964-7-29 640729- 5 Humboldt 0.2 mi north of Meyers Flats on U.S. 101 75 Comment
  CAS-BOT-BC436906  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-1 82 Humboldt Near Wilder's Comment
  SD51331  Tiarella trifoliata var. unifoliata Darley F. Howe 1961-7-31 3097 Humboldt 12 miles north of Garberville on #101 29 Comment
  UC302171  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1925-7-5 7181 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1173638  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1930-7-17 8993 Humboldt McKay Camp South Fork Mountain Comment
  UC180231  Tolmiea diplomenziesii Joseph P. Tracy 1914-8-23 4589 Humboldt near Forks of Elk River (Humboldt Bay Region); Northern Coast Region 0 Comment
  HSC100655  Tolmiea menziesii Carl C. Marshall Apr 1885 46 Humboldt Damp woods near streams etc. Comment
  UC27662  Tonella tenella Harley P. Chandler Jun 1901 1275 Humboldt Hupa Mts. Hupa Indian Reservation (between Bairs and summit) Comment
  JEPS14165  Torilis nodosa Lincoln Constance 1934-5-27 706 Humboldt South Fork Eel River, S end of Dyerville Bridge 45 Comment
  UCD93230  Torreyochloa pallida var. pauciflora Joseph P. Tracy 1940-10-5 16742 Humboldt mouth of Little River. 3 Comment
  UCD93242  Torreyochloa pallida var. pauciflora H. S. Yates 1914-6-15 438 Humboldt Buckeye Mts. 883 Comment
  RSA591513  Tracyina rostrata J. L. Strother 1996-5-30 1363 Humboldt NE of Alderpoint, easterly from Alderpoint-Blocksburg Road, 1km (0.6mi) on unpaved Stewart Ranch Road. 160 Comment
  SEINET10953093 Image available Tracyina rostrata Joseph P. Tracy 1916-6-20 Tracy 4735 Humboldt Alder Point, on warm grassy slopes. 305 Comment
  CAS-BOT-BC399989  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-25 15564 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  HSC49054  Trichostema lanceolatum Patricia Shesgreen 1978-7-30 122 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  UC535718  Trichostema laxum Eleanor Armstrong 1934-7-15 1130 Humboldt Richardson Grove 121 Comment
  RSA440753  Trichostema laxum E. S. Spalding 1924-7-13 s.n. Humboldt Lanis Flats, bank of Eel River. Comment
  UC162685  Trichostema laxum Joseph P. Tracy 1911-7-10 3492 Humboldt Valley of Trinity River at mouth of Willow Creek Northern Coast Ranges 152 Comment
  BLMAR156  Trientalis latifolia Donald Hazlett 1994-6-7 156 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC32879  Trientalis latifolia Thomas W. Nelson, James Nelson 1973-5-28 933 Humboldt McKeown Ranch N of Dinsmore Comment
  POM118789  Trientalis latifolia Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  SEINET12157030  Trifolium albopurpureum Unknown 1936-1 13477 Humboldt Fields Landing Comment
  UC1223382  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1933-5-20 12248 Humboldt 1 mile west Petrolia (Mattole Valley); Northern Coast Ranges Comment
  UC1602051  Trifolium albopurpureum var. dichotomum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 b Humboldt Hoopa Mt. Comment
  UC1197242  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1913-6-20 4225 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges 762 Comment
  CDA4306  Trifolium angustifolium B. Morrison 1974-7-22 Humboldt Approximately six miles east of Capetown, on Bear River Road. 0 Comment
  UC179920  Trifolium campestre Joseph P. Tracy 1914-7-4 4523 Humboldt Between Korbel and Angels Ranch Northern Coast Ranges 457 Comment
  UC249727  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1921-5-30 5480 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC16503  Trifolium dubium Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5602 Humboldt Arcata Comment
  RSA43868  Trifolium dubium H. M. Pollard 1948-7-18 s.n. Humboldt Banks of Klamath River, Orleans. Comment
  HSC99714  Trifolium eriocephalum subsp. eriocephalum Glenn W. K. Shelton 2010-7-10 14 Humboldt Due N of Buck Mtn. on FS Rd. 1N08A 1159 Comment
  POM277890  Trifolium eriocephalum subsp. eriocephalum Lyman D. Benson 1929-6-18 1732 Humboldt North of Arcata Comment
  UC495654  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-7-6 8835 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1223457  Trifolium fucatum Joseph P. Tracy 1935-5-25 13831 Humboldt Blocksburg Comment
  UC162803  Trifolium fucatum Joseph P. Tracy 1906-7-4 2532 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UC1223456  Trifolium fucatum Joseph P. Tracy 1950-6-8 18748 Humboldt 1 mi e Cape Mendocino; Cape Ridge 152 Comment
  HSC15183  Trifolium gracilentum Norman H. Moe 1962-5-19 Humboldt Lanphere's Place Comment
  UCD111199  Trifolium hirtum B. L. Kay 1955-6-2 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  HSC18849  Trifolium incarnatum C. E. Fellows 1970-5-10 263 Humboldt Rio Dell Comment
  UC175675  Trifolium longipes subsp. hansenii Joseph P. Tracy 1913-6-17 4157 Humboldt Northern Coast Ranges. Buck Mountain, near summit. Comment
  UC1197543  Trifolium microdon J. P. Tracy 1911-5-30 3202 Humboldt Bucksport Eureka vicinity 0 Comment
  UC1197504  Trifolium obtusiflorum Joseph P. Tracy 1914-5-30 4480 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UC249721  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5438 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  UCD109391  Trifolium subterraneum R. Tofsrud 1949-7-1 s.n. Humboldt Talarook, Hydesville. Comment
  UC1197554  Trifolium variegatum var. variegatum Joseph P. Tracy 1936-6-17 14969 1/2 Humboldt Burr Valley nw slope of Buck Mtn 1066 Comment
  UC495692  Trifolium willdenovii Joseph P. Tracy 1932-6-14 10157 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UCD109887  Trifolium willdenovii Tofsrud 1948-1 s.n. Humboldt location unknown. Comment
  HSC15194  Trifolium wormskioldii Norman H. Moe 1962-5-17 Humboldt Lanphere's Place. Comment
  HSC38477  Trifolium wormskioldii D. E. Anderson 1971-6-14 - 1042 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  UC1197039  Trifolium wormskioldii Joseph P. Tracy 1927-6-18 8174 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UCD109909  Trifolium wormskioldii Linda M. Barker 1976-6-1 1547 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1130173  Trifolium wormskioldii H. S. Yates 1936-6-18 5723 Humboldt 2 mi s of mouth of Littler River Eureka quad 3 Comment
  CAS-BOT-BC451806  Triglochin maritima L. R. Abrams 1918-6-12 7086 Humboldt Eureka Comment
  CAS-BOT-BC451810  Triglochin maritima Robert F. Thorne; P. Everett 1965-8-9 35303 Humboldt Big Lagoon 3 Comment
  RSA249526  Triglochin maritima Robert F. Thorne, Percy C. Everett 1965-8-9 35303 Humboldt Big Lagoon. 3 Comment
  RSA249527  Triglochin maritima Robert F. Thorne, Percy C. Everett 1965-8-7 35214 Humboldt Samoa Peninsula: near sea level Comment
  UC1130595  Triglochin maritima H. S. Yates 1936-6-23 5860 Humboldt 1 mi w Bayside; Eureka Quadrangle Comment
  HSC10921  Triglochin maritima D. E. Anderson 1965-6-10 3787 Humboldt Near E part of Eureka Comment
  HSC14172  Triglochin maritima R. L. Jarvis 1962-4-29 31 Humboldt Stone Lagoon, 3 mi. S of Orick 0 Comment
  HSC96777  Trillium albidum M. Mesler 2006-6-3 608 Humboldt 16 mi. S of Hwy. 299, NF 1 1250 Comment
  RSA271695  Trillium ovatum Jane Turner, Francis M. Ball 1962-7-10 SK&F- 1140 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  HSC45264  Trillium ovatum M. Alcasas 1978-4-7 1 Humboldt Freshwater Rd. 0.5 mi. N of Kneeland Post Office 732 Comment
  SDSU11973  Trillium ovatum Leslie Hickson 1990-4-15 15 IV90F Humboldt Oak Street 0.5 miles north of Freshwater. Off the right side of the road under the Redwood tees. Eureka, Ca. Comment
  HSC24053  Trillium ovatum subsp. oettingeri J. O. Sawyer 1971-6-16 2387 Humboldt Lipps Camp 1433 Comment
  CAS-BOT-BC521314  Trillium rivale Doris K. Kildale 1930-6-1 9739 Humboldt Klamath River at Bluff Creek 152 Comment
  JEPS11779  Triodanis perfoliata W. L. Jepson 1902-6 1940 Humboldt Green Point Ranch Redwood Creek (Redwood Creek) Comment
  CHSC118618  Triphysaria eriantha subsp. eriantha Richard R. Halse 2016-3-24 9683 Humboldt Along U.S. Hwy. 101 ca. 9.5 miles south of Garberville, just north fo the Mendocino County Line. 168 Comment
  UC1198036  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1911-5-30 3207 Humboldt sandy fields at Bucksport (at Eureka); Northern Coast Region 0 Comment
  UC1198037  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1901-4-14 1020 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Humboldt Bay Comment
  HSC78970  Triphysaria pusilla L. P. Janeway 1984-5-16 787 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. N of the boat ramp 3 Comment
  CHSC1822  Triphysaria versicolor subsp. faucibarbata V. Holt 1941-5-30 Humboldt Comment
  JEPS13344  Triphysaria versicolor subsp. faucibarbata H. E. and S. T. Parks May, 1930 750 Humboldt near Bridgeville Comment
  UC1537448  Triphysaria versicolor subsp. versicolor Gordon H. True Jr. 1936-5-12 475 Humboldt s Eureka; s of Eureka 15 Comment
  CAS-BOT-BC199627  Trisetum canescens Doris K. Kildale 1929-5-26 9129 Humboldt Klamath River at Orleans 152 Comment
  UC212882  Trisetum canescens Joseph P. Tracy 1919-5-31 5157 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  HSC38626  Trisetum cernuum D. E. Anderson, J. P. Smith 1971-6-18 - 1102 Humboldt Under bridge over Redwood Creek on Hwy. 299 Comment
  JEPS75418  Trisetum cernuum W. L. Jepson 1932-7-29 16438 Humboldt Weott Comment
  UC1541533  Trisetum cernuum Harold E. Parks 1934-5-16 4935 Humboldt Carlotta; near station 15 Comment
  UC526697  Trisetum cernuum Joseph P. Tracy 1926-5-22 7502 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  UC922029  Trisetum cernuum Joseph P. Tracy 1940-8-11 16695 Humboldt Streambank at Raccoon Creek; Trinity River Valley, near Willow Creek 152 Comment
  SEINET10604393  Trisetum cernuum Harley P. Chandler Chandler 1176 Humboldt Humboldt Bay. 30 Comment
  HSC44764  Triteleia hyacinthina Maralyn O'Meara 1972-6-8 90 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC44872  Triteleia hyacinthina J. P. Smith, J. O. Sawyer 1973-5-12 6664 Humboldt 1.0 mi. from Redwood Creek on Hoopa Rd. Comment
  RSA183018  Triteleia hyacinthina Lee W. Lenz 1966-5-24 24659 Humboldt W of Berry Summit, US 299. Comment
  RSA378030  Triteleia hyacinthina Hutchinson 1927-05 s.n. Humboldt [No locality information provided] Comment
  HSC3050  Triteleia laxa William J. Ferlatte, B. D. Rogers 1966-6-8 2086 Humboldt Forest Glen Campground. Comment
  UC52241  Triteleia peduncularis J. P. Tracy 1903-6-12 1920 Humboldt Eureka vicinity 0 Comment
  CAS-BOT-BC85895  Tsuga heterophylla G. A. Coleman 1901-7-20 s.n. Humboldt Near Acorn Comment
  UC615043  Tsuga heterophylla Beryl O. Schreiber 1934-6-5 1133 Humboldt 15 mi e of Blue Lake (road to Redding, wooded slope) Comment
  HSC93497  Typha latifolia Gordon Leppig 1998-6-8 899 Humboldt Arcata Marsh and Wildlife Sanctuary, SW side of pond. 2 Comment
  HSC62995  Umbellularia californica David Wheeler 1979-5-8 98 Humboldt 927 J St. Arcata Comment
  UC1585363  Umbellularia californica R. Raiche, K. Zadnik, and H. Forbes 1989-2-10 Humboldt just w of Pine Ridge Summit (w of Hoopa, Bair Road); Bair Road 840 Comment
  SEINET12102554  Umbellularia californica E. H. Graham 1931-1 6960 Humboldt Along highway near Garberville Comment
  SEINET12026866  Urtica dioica J. P. Tracy 1950-1 19369 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles 122 Comment
  HSC95731  Urtica dioica subsp. gracilis Steven Lee 2004-4-13 21 Humboldt Arcata Community Forest, along Jolly Giant Creek. Comment
  CAS-BOT-BC199304  Vaccinium ovatum Doris K. Kildale 1927-3-25 3008 Humboldt Humboldt Hill near Bucksport School House 15 Comment
  CAS-BOT-BC199320  Vaccinium ovatum Carl B. Wolf 1931-8-29 2369 Humboldt Near summit of Orick Hill on road to Weitchpec 304 Comment
  HSC7914  Vaccinium ovatum J. Pursell 1964-10-11 10111 Humboldt Patricks Point State Park, trail to wedding rock Comment
  POM118412  Vaccinium ovatum Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  UCD118079  Vaccinium ovatum Joseph M. DiTomaso 1976-3-28 349 Humboldt Arcata, beneath Redwood tree. Comment
  HSC37332  Vaccinium parvifolium Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 477 Humboldt Along Lost Man Creek. 38 Comment
  HSC41244  Vaccinium parvifolium Brad Klipfel 1974-5-27 386 Humboldt Horse Mountain Comment
  HSC91894  Vaccinium parvifolium E. Mackey 1986-10-24 Humboldt Patricks Point State Park Comment
  LA44792  Vaccinium parvifolium Carl Epling; William Robison 1935-7-22 sn Humboldt Patrick's Point Comment
  OBI35857  Vaccinium parvifolium David J. Keil 1983-7-2 17329 Humboldt Horse Mtn summit SW of Willow Crk. Comment
  UC22217  Vaccinium parvifolium Harley P. Chandler May 1901 1182 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC602499  Valeriana californica Joseph P. Tracy 1935-7-30 14381 Humboldt Salmon Summit 2103 Comment
  UC602496  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1932-7-13 10505 Humboldt Corral Prairie Trinity Summit 1584 Comment
  JEPS52976  Vancouveria W. L. Jepson 1932-8-1 16471 Humboldt Bull Creek; deep woods at Geant Tree 121 Comment
  HSC3386  Vancouveria hexandra D. B. Bader 1963-5-15 50 Humboldt .25 mi. up Jolly Giant Creek from HSU men's dormitory Comment
  HSC3388  Vancouveria hexandra M. T. Milligan 1964-5-14 Humboldt 3 mi. N on Essex Ln. Comment
  SD58169  Vancouveria hexandra Milo S. Baker 1923-7-16 19 Humboldt 3 miles southeast of Eureka Comment
  HSC73140  Vancouveria planipetala M. A. Baker 1980-5-18 1294 Humboldt Near Black Mtn. 1006 Comment
  HSC76284  Vancouveria planipetala Teresa Prendusi 1981-7-9 189 Humboldt Near Cedar Camp. 1268 Comment
  SEINET10536497  Vancouveria planipetala Mary Susan Taylor 1980-6-11 Taylor 2843 Humboldt Gray Falls Campground, Six Rivers Natl Forest, on W side of Rd 6N56 to foot bridge, on N side of Hwy 299, ca. 2 mi NW of Burnt Ranch. 274 Comment
  HSC32234  Velezia rigida J. O. Sawyer 1970-6-24 2248 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1198213  Veratrum californicum var. californicum Joseph P. Tracy 1933-7-25 12862 Humboldt in wet meadow Grouse Mountain 1524 Comment
  HSC98750  Veratrum californicum var. caudatum Cara Witte 2007-7-20 554 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  CAS-BOT-BC135774  Veratrum insolitum Doris K. Kildale 1925-9-5 1272 Humboldt Between Orick and Martin's Ferry 716 Comment
  SD51275  Veratrum insolitum Darley F. Howe 1961-8-2 3124 Humboldt 24 miles east of Orick, on Bald Mountain Road. 914 Comment
  UC1225851  Veratrum insolitum Joseph P. Tracy 1948-9-12 18213 Humboldt 1 mi w Box Camp; Trinity Summit 1371 Comment
  UC582590  Verbascum blattaria Joseph P. Tracy 1937-6-26 15366 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC1225827  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1948-8-8 18090 Humboldt Iaqua School House Comment
  HSC90696  Veronica americana Gail Newton 1983-6-5 3557 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC99387  Veronica americana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 36 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET6988462 Image available Veronica peregrina var. xalapensis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  HSC21213  Veronica persica R. A. Eagle 1964-4-15 32 Humboldt Just off campus of HSC near elementary school Comment
  UC1192005  Veronica scutellata Malcolm A. Nobs, S. Galen Smith 1949-8-3 1190 Humboldt at the southern outskirts of Eureka Comment
  RSA245256  Veronica scutellata John R. Keith 1973-5-15 s.n. Humboldt Approximately 200 yards east of jct of Guintoli Ln. and West End Road. Comment
  HSC56064  Veronica serpyllifolia subsp. humifusa G. L. Clifton, Terry Griswold 1979-7-31 11708 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 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
  HSC39004  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1976-5-31 2650 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  SEINET10738618  Vicia americana var. americana J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13014 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  UC71810  Vicia americana var. americana Mrs. M. H. Manning May 1903 133 Humboldt Fort Bidwell Comment
  POM278062  Vicia angustifolia Lyman D. Benson 1928-7-12 461 Humboldt Weott Ranger Station 61 Comment
  JEPS66158  Vicia benghalensis Joseph P. Tracy 1924-6-28 6701 Humboldt Hydesville; Northern Coast Ranges 91 Comment
  HSC100118  Vicia sativa David Adams 1960-7-15 Humboldt Near Fort Humboldt monument, Eureka 15 Comment
  HSC3233  Vinca major S. R. Johnson 1965-3-23 16 Humboldt 1 mi. N of Luffenholtz Beach Comment
  CAS-BOT-BC263939  Viola adunca Alice Eastwood 1907-4-21 31 Humboldt Trinidad Comment
  HSC21774  Viola adunca K. P. St. John 1965-4-3 10 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  RSA46714  Viola adunca Doris K. Kildale 1926-3-20 1537 Humboldt Big Lagoon. Comment
  SEINET11980785  Viola adunca f. adunca Unknown 1936-1 13040 Humboldt Fields Landing Comment
  HSC48825  Viola bakeri Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 36 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  SEINET200808 Image available Viola cuneata Joseph P. Tracy 1927-6-12 8124 Humboldt Horse Mountain. 1520 Comment
  HSC21866  Viola hallii W. Lanphere 1937-5-11 Humboldt Hoopa Comment
  HSC21804  Viola hallii D. E. Anderson 1967-6-10 4367 Humboldt W-facing slope on Horse Mtn. 1220 Comment
  HSC101993  Viola macloskeyi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 892 Humboldt Patterson Meadows 1555 Comment
  RSA12564  Viola macloskeyi Carl B. Wolf 1934-7-2 5875 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  JEPS50441  Viola ocellata Joseph P. Tracy 1922-4-30 6034 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1198438  Viola ocellata Joseph P. Tracy 1937-5-30 15307 Humboldt 5 mi n of Blocksburg (Larrabee Creek); Larrabee Creek 365 Comment
  UC1198453  Viola ocellata Joseph P. Tracy 1913-6-22 4266 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, in Valley of Van Duzen River 762 Comment
  HSC71027  Viola ocellata Thomas W. Nelson 1977-4-20 3319 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  RSA125655  Viola ocellata E. K. Balls 1957-5-26 22608 Humboldt 2.6 mi NE from Harris on road to Alder Point. 701 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
  HSC34643  Viola sempervirens Thomas Anthony 1975-4-8 4 Humboldt E of HSU tennis courts on ridge facing Fern Lake from W Comment
  HSC95737  Viola sempervirens Steven Lee 2004-2-18 1 Humboldt Arcata Community Forest, Jolly Giant Creek; 5-20 ft. from water's edge Comment
  UC727172  Viola sempervirens A. A. Heller 1924-7-23 13877 Humboldt Trinidad Head Comment
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Sep 29 2006
  UC201299  Viola sempervirens Chesnut and Drew 1888-7-8 Humboldt Campbell's Comment
  HSC86306  Viola sheltonii K. Berg, R. Bonning 1983-5-21 487 Humboldt 6.1 mi. from Berry Summit and Hwy. 299 1494 Comment
  UC1761734  Viola sheltonii W. K. Parks Jul 1933 6237 Humboldt South Fork Mt. Comment
  JEPS40256  Vitis californica W. L. Jepson 1924-9-20 10653 Humboldt Richardson Grove South Fork Eel River Comment
  HSC9924  Vulpia myuros Yarick 1960-8-3 Humboldt K & K. 7 mi, Krueger Cr. Comment
  UC1103718  Vulpia myuros var. hirsuta Joseph P. Tracy 1914-5-14 4432 1/2 Humboldt Fort Seward 106 Comment
  HSC103290  Whipplea modesta Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3013 Humboldt Six Rivers National Forest; ~ 1.75 mi. south of Hwy. 299 on Titlow Hill Road; ~ 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 979 Comment
  UC1198901  Whipplea modesta Joseph P. Tracy 1908-6 2728 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC570904  Whipplea modesta Herbert L. Mason 1932-7-21 7112 Humboldt on road from Arcata to Weaverville (e slope of mts.); Southfork Mountains Comment
  HSC74461  Woodwardia fimbriata M. A. Baker 1980-5-18 1357 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC382916  Wyethia angustifolia Joseph P. Tracy 1935-6-23 13988 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC382924  Wyethia angustifolia Carl B. Wolf 1927-8-29 1200 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, Mt. Glen Comment
  JEPS32104  Wyethia angustifolia W. L. Jepson 1934-5-8 16717 Humboldt n of Redway; South Fork Eel River Comment
  UC582643  Wyethia angustifolia Joseph P. Tracy 1930-7-27 8898 Humboldt open grassy hills Northern Coast Ranges, Bear River Ridge 609 Comment
  HSC82033  Wyethia longicaulis Thomas W. Nelson, James Nelson 1980-6-10 5401 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  HSC98513  Wyethia longicaulis Cara Witte 2007-5-21 67 Humboldt White Oak Opening. 1257 Comment
  CAS-BOT-BC326977  Wyethia longicaulis Volney Rattan 1881-6-1 s.n. Humboldt North of Mad River Comment
  SEINET3356277 Image available Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp Comment
  UC1198220  Xerophyllum tenax Joseph P. Tracy 1937-8-12 15630 Humboldt Snow Camp 1402 Comment
  SD104877  Zeltnera muehlenbergii Darley F. Howe 1979-6-25 Humboldt Highway 96, 12.3 miles north of Willow Creek. Comment
  HSC73775  Zigadenus micranthus M. A. Baker 1980-6-7 1769 Humboldt Near Brush Mtn. 1128 Comment
  HSC93950  Zostera marina F. J. Shaughnessy 1999-6-14 Humboldt Arcata Marsh and Wildlife Sanctuary, Humboldt Bay, Fields Landing Comment
  RSA684208  Zostera marina R. Setzer 1972-7-29 6992 Humboldt Buhne Point; Humboldt Bay near Eureka. 0 Comment



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