Search Results — 2000 specimen records retrieved (1367 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  RSA46784  Abies Doris K. Kildale 1937-8-12 15241 Humboldt South Fork Mountain. Comment
  HSC28258  Abies grandis Gary S. Lester 1973-12-2 57 Humboldt Humboldt State University Campus, Arcata Comment
  HSC40002  Abies grandis Linda M. Barker 1976-9-3 1688 Humboldt Lanphere-Christensen Dunes, 3 mi. W of 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
  RSA0025084  Abronia latifolia Robert F. Thorne 1957-9-3 19012 Humboldt Little River Beach, few miles S of Trinidad. Comment
  RSA0025085  Abronia latifolia Patricia Wilder 1968-8-21 4402 Humboldt Northern coastal arm of Humboldt Bay, ca. 2 miles SW of Samoa, near bay by roadside. Humboldt Bay drainage area. 5 Comment
  CAS-BOT-BC436987  Acaena novae-zelandiae D. W. Cooper 1966-10-10 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  CDA40634  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile northwest of Fieldbrook. 0 Comment
  HSC2785  Acer circinatum D. E. Anderson 1965-5-8 3627 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  HSC2790  Acer circinatum Doris K. Kildale 1925-6-24 750 Humboldt Fortuna, Carson Woods Comment
  SEINET7892760  Acer circinatum W. D. Billings 1940-6-25 1349 Humboldt Cedar Creek, 35 miles east of Arcata Comment
  HSC98921  Acer glabrum var. torreyi Cara Witte 2007-6-5 211 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  HSC12932  Acer macrophyllum C. E. Fellows 1970-11-9 351 Humboldt HSC Campus, S side Bio Greenhouse Comment
  JEPS42651  Acer macrophyllum W. L. Jepson 1932-7-30 16448 Humboldt near Big Tree; Bull Creek, near Big Tree 121 Comment
  UC718416  Acer macrophyllum Wolf and Johnson 1934-10-11 6756 Humboldt Redwood Highway 6 4/10 mi w Humboldt Redwood Park (Eel River); w of Humboldt Redwood Park, Eel River 91 Comment
  HSC57890  Achillea millefolium Overton, Butler 1979-7-31 11450 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UCSB30612  Achillea millefolium Edwards, David 1974-7-26 Humboldt At the top of the E. bank of the Mad River, at its junction with Puter Creek, ca. 2 mi. SW. of Korbel 27 Comment
  HSC68080  Achillea millefolium J. P. Smith, Steve Selva 1970-6-30 4103 Humboldt Comment
  RSA296791  Achillea millefolium var. arenicola J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just east of the drag strip. Comment
  SEINET200949 Image available Achnatherum lemmonii J. P. Tracy 1921-5-30 5486 Humboldt Kneeland Prairie 762 Comment
  UC526753  Achnatherum lemmonii Joseph P. Tracy 1930-7-10 8866 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC526756  Achnatherum lemmonii Joseph P. Tracy 1933-7-25 12849 Humboldt Grouse Mountain 1524 Comment
  UCD55568  Achnatherum lemmonii W. Robert Powell 1958-7-10 s.n. Humboldt 6 miles northeast of Lord Ellis Summit. 1158 Comment
  HSC45024  Acmispon micranthus R. Sutherland 1978-4-23 18 .23478 Humboldt Near head of Kinsey (Fraser) Ridge 732 Comment
  HSC64762  Acmispon micranthus Bruce Gordon 1979-6-18 140 Humboldt Redwood National Park, NNE of K & K Rd, about 2.5 mi. S of junction of K & K Rd. and Bald Hills Rd. 707 Comment
  BLMAR170  Acmispon parviflorus Donald Hazlett 1994-6-7 170 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  RSA168919  Aconitum columbianum Joseph P. Tracy 1950-7-31 19242 Humboldt NE side of top of Grouse Mtn Comment
  UC1212576  Aconitum columbianum Francia Chisake and Helen Sharsmith 1959-8-22 4752 Humboldt bog at Happy Camp (just over line from Trinity Co.); Inner N. Coast Ranges, Happy Camp 914 Comment
  CAS-BOT-BC412600  Aconogonon alaskanum Volney Rattan 1883-6-18 s.n. Humboldt Near the summit between Pilot Creek and the Trinity River Comment
  UC582523  Adenocaulon bicolor Joseph P. Tracy 1932-7-17 10650 Humboldt fir woods near Corral Prairie; Trinity Summit 1584 Comment
  HSC44330  Adiantum aleuticum Brad Klipfel 1975-6-17 679 Humboldt Horse Mtn. Comment
  HSC54522  Adiantum aleuticum Overton, Butler 1979-7-23 9453 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  POM118378  Adiantum aleuticum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1239781  Adiantum aleuticum Joseph P. Tracy 1926-6-20 7636 Humboldt Horse Mt; Northern Coast Ranges 1463 Comment
  RSA458173  Aesculus californica Charlotte M. Hoak 1931-07 s.n. Humboldt Alton. Comment
  OBI17128  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-7-19 17275 Humboldt Vicinity of Garberville Comment
  UC1222885  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt at n end of town Garberville Comment
  HSC98511  Agoseris grandiflora var. leptophylla Cara Witte 2008-8-6 1008 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  HSC40016  Agoseris retrorsa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2919 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  SEINET200944  Agrostis Joseph P. Tracy 1927-7-17 8271 Humboldt Three cabins On lower western foothills of Chaparral Mountain. 457 Comment
  RSA10025  Agrostis densiflora Joseph P. Tracy 1927-7-17 8271 Humboldt Three Cabins; Chaparral Mountain Comment
  CAS-BOT-BC127284  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  UC204711  Agrostis exarata Joseph P. Tracy 1918-7-5 5016 Humboldt White Thorn Valley, in dried up ditch Northern Coast Ranges, White Thorn Valley 304 Comment
  UC526885  Agrostis exarata Joseph P. Tracy 1933-7-10 12656 Humboldt Trinidad Northern Coast Region 60 Comment
  UC526895  Agrostis exarata Joseph P. Tracy 1933-7-20 12809 Humboldt along river near Blue Lake; Mad River 15 Comment
  UC552751  Agrostis exarata Joseph P. Tracy 1934-7-2 13296 Humboldt Trinidad 3 Comment
  UCD52382  Agrostis exarata H. E. and S. T. Parks Jun and Jul 1952 7553 Humboldt Spruce Cove, Trinidad. 60 Comment
  UCR27986  Agrostis exarata A. C. Sanders 1981-8-6 2302 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  UCSB51224  Agrostis exarata Almanza, Ed 1976-7-15 Humboldt Big Lagoon Campground, Big Lagoon Comment
  HSC64165  Agrostis hallii J. O. Sawyer, K. A. Sawyer 1979-6-24 3409 Humboldt Slopes alongside Aikens Creek. 366 Comment
  SEINET200941  Agrostis longiligula Joseph P. Tracy 1924-1 6729 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC139124  Agrostis oregonensis Joseph P. Tracy 1924-7-4 6711 Humboldt Northern Coast Ranges. Snow Camp. 1371 Comment
  UC526875  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8995 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (wet meadow) 1676 Comment
  UC1103522  Agrostis pallens Joseph P. Tracy 1932-7-14 10551 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC1145075  Agrostis pallens Joseph P. Tracy 1950-8-8 19292 Humboldt Croghan Hole Trinity Summit (dry gravelly flats among rocks) 1676 Comment
  HSC37913  Agrostis stolonifera Peter Sorensen 1976-7-15 Humboldt Woodley Island Comment
  HSC8810  Agrostis stolonifera C. B. Wolf 1927-8-27 1189 Humboldt Eureka Bay, on the road from Eureka to Arcata. Comment
  UCD53476  Agrostis stolonifera var. maritima P. B. Kennedy 1925-8-29 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC138572  Agrostis variabilis Joseph P. Tracy 1930-7-16 8948 Humboldt Northern Coast Ranges. South Fork Mountain. Along summit near Blake Lookout. 1737 Comment
  UC37074  Aira caryophyllea Harley P. Chandler May, 1901 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UCD55702  Aira caryophyllea A. H. Murphy 1951-5-15 n.s. Humboldt 1 mile southeast of the Fruitland-Whitlow road junction on Whitlow road. 304 Comment
  RSA205970  Aira praecox Joseph P. Tracy 1900-6-5 849 Humboldt Immediate vicinity of Eureka. 0 Comment
  RSA90195  Aira praecox Joseph P. Tracy 1925-3-24 11669 Humboldt Eureka, North Coast Range. Comment
  UC672869  Alisma plantago-aquatica Joseph P. Tracy 1927-8-7 8322 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 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
  HSC98054  Allium amplectens Cara Witte 2007-7-11 510 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  UC1198198  Allium bolanderi Joseph P. Tracy 1936-6-10 14923 Humboldt mountain slopes w mouth of South Fork of Trinity River; South Fork of Trinity River 304 Comment
  HSC2936  Allium falcifolium D. E. Anderson 1965-6-1 3762 Humboldt Horse Mtn. 1433 Comment
  UC30070  Allium falcifolium Joseph Burtt Davy 1899-6-19 5659 Humboldt summit of ridge, Hoopa Mt. Hoopa Mt. Comment
  UC15002  Allium unifolium Joseph Burtt Davy 1899-6-11 5444 Humboldt between Hubbard's Station and Elk Prairie Comment
  HSC100400  Allocarya californica Carl C. Marshall 463 Humboldt Road between Harris and Garberville. Comment
  JEPS58643  Alnus incana subsp. tenuifolia W. L. Jepson 1902-7-17 2058 Humboldt Trinity Summit 2133 Comment
  CAS-BOT-BC170945  Alnus rhombifolia Doris K. Kildale 1926-12-13 1428 Humboldt Bridgeville on Van Duzen River 228 Comment
  JEPS58618  Alnus rhombifolia W. L. Jepson 1902-7-29 2123 Humboldt Supply Creek Hupa Valley 243 Comment
  CAS-BOT-BC169530  Alnus rubra Doris K. Kildale 1926-3-20 1540 Humboldt Big Lagoon Comment
  CHSC130  Alnus rubra A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  POM106497  Alnus rubra Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA778734  Alnus rubra Lyman Benson 1928-7-10 430 Humboldt Clam Beach, Trinidad. 12 Comment
  UC1100224  Alopecurus geniculatus Malcolm A. Nobs and S. Galen Smith 1949-8-3 1164 Humboldt 1 mi. s. Fields Landing (Eel R. Valley); Eel R. Valley Comment
  CAS-BOT-BC13705  Ambrosia chamissonis H. E. Parks 1941-8-1 24181 Humboldt Big Lagoon Comment
  CAS-BOT-BC13710  Ambrosia chamissonis Carl B. Wolf 1927-8-29 1213 Humboldt Devil's Gate, south of Cape Mendocino. Comment
  CAS-BOT-BC13711  Ambrosia chamissonis David D. Keck 1935-6-16 3385 Humboldt Mouth of Little River. Comment
  CHSC69496  Ambrosia chamissonis Vernon Oswald; Lowell Ahart 1997-9-4 8844 Humboldt Big Lagoon County Park at the southwest edge of Big Lagoon. North Coast Region, Coastal Strand. 3 Comment
  UC127637  Ambrosia chamissonis J. P. Tracy 1901-8-7 1275 Humboldt at, on Sea Beach opposite Eureka Samoa Comment
  RSA28766  Ambrosia chamissonis var. chamissonis H. E. Parks 1941-09 24214 Humboldt Mouth of Little River 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
  HSC98537  Amelanchier alnifolia var. semiintegrifolia Cara Witte 2008-6-11 709 Humboldt Forest Service Road 5N10. At intersection of Forest Service Road 5N41. 1294 Comment
  CAS-BOT-BC142894  Amelanchier alnifolia var. semiintegrifolia L. R. Abrams 1917-6-17 7209 Humboldt Hoopa to Briar's Resort on road to Korbel Comment
  HSC41466  Amelanchier pallida J. P. Smith, J. O. Sawyer 1973-5-12 6690 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  CDA1716  Ammophila arenaria T. C. Fuller 1961-9-28 7062 Humboldt 0.2 miles south of Samoa. 0 Comment
  CHSC33078  Ammophila arenaria J. P. Smith; T. W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just east of the drag strip. Comment
  SBBG115197  Ammophila arenaria D. Leaberry 1992-6-20 Humboldt Clam Beach County Park, ca. 1 mi N of Arcata Airport Comment
  HSC3537  Amsinckia intermedia Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  UC545822  Amsinckia menziesii var. menziesii H. E. Parks March, 1933 4282 Humboldt Trinidad Comment
  HSC32503  Anagallis arvensis David Johnson 1974-5-2 73 Humboldt Mad River Co. Park, mouth of the Mad River; by the parking lot Comment
  HSC49034  Anagallis arvensis Patricia Shesgreen 1978-5-5 67 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  UCR48597  Anaphalis margaritacea R. D. Goeden, Don W. Ricker 1987-9-2 7 A Humboldt Loleta, along Cannibal Road 8 Comment
  SEINET10761471  Anaphalis margaritacea J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13013 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  CAS-BOT-BC391771  Anemone deltoidea Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC31122  Anemone deltoidea J. O. Sawyer 1970-6-24 2265 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UC13935  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
  UC1537337  Anemone deltoidea Gordon H. True Jr. 1936-5-12 471 Humboldt 5 mi. s. Kneeland 457 Comment
  UC535706  Anemone deltoidea Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  HSC98600  Anemone deltoidea Cara Witte 2008-6-15 736 Humboldt Along National Forest 1. 3 miles north from intersection with Forest Service Road 6N01B. 1456 Comment
  JEPS60507  Anemone deltoidea W. L. Jepson 1902-6-22 1913 Humboldt Pepperwood Comment
  JEPS60508  Anemone deltoidea W. L. Jepson 1902-7-15 2029 Humboldt between Mud Spring and Trinity Summit Trinity Summit 1828 Comment
  UC160912  Anemone oregana Joseph P. Tracy 1909-4-4 2949 Humboldt s foot of Humboldt Hill (near Buhne's Ranch, region about Humboldt Bay); North Coast Ranges 0 Comment
  HSC76205  Angelica arguta Overton, Butler 1979-8-2 12536 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1103417  Angelica genuflexa Joseph P. Tracy 1936-8-17 15148 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  JEPS16075  Angelica genuflexa W. L. Jepson 1936-8-17 17915 Humboldt Fields Landing, Stills Ranch Fields Landing; , Stills Ranch Comment
  CAS-BOT-BC221418  Angelica hendersonii L. R. Abrams 1916-7-18 6138 Humboldt At Trinidad Comment
  UC140622  Angelica lucida J. W. Congdon 1904-7-25 Humboldt South Bay Comment
  UC179914  Angelica lucida Joseph P. Tracy 1914-7-12 4581 Humboldt near Hookton (at s end of Humboldt Bay); Northern Coast Region, Humboldt Bay 0 Comment
  UC642351  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  UCR270360  Angelica tomentosa John F. Emmel 2003-7-30 1801 Humboldt North Coast, Bald Hills Road, 21.5 road mi southeast of Hwy 101, near south end of French Camp Ridge 915 Comment
  CAS-BOT-BC271493  Anisocarpus madioides Doris K. Kildale; L. B. Kildale 1930-5-24 9552 Humboldt Hoopa Valley 152 Comment
  UC175968  Anisocarpus madioides Joseph P. Tracy 1911-6-4 3213 Humboldt 5 mi from coast (along Little River); Northern Coast Region, Little River 121 Comment
  UCD128893  Anisocarpus madioides K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  UC205188  Antennaria media Joseph P. Tracy 1919-9-24 5293 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  HSC57616  Antennaria racemosa G. L. Clifton, Griswold 1979-7-25 10740 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC56962  Antennaria suffrutescens Overton, Butler 1979-7-23 9477 Humboldt Near Horse Mountain Creek, close to the town of Willow Creek 1317 Comment
  SEINET11853676  Antennaria suffrutescens J. P. Tracy 1947-1 17864 Humboldt Horse Mountain 1433 Comment
  HSC32244  Anthemis cotula J. O. Sawyer 1970-6-24 2239 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UCD56137  Anthoxanthum aristatum Joseph P. Tracy 1951-6-26 19548 Humboldt Snow Camp Meadow. Comment
  UC1100218  Anthoxanthum odoratum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1208 Humboldt 2 mi n of Eureka (bordering Humboldt Bay); Humboldt Bay Comment
  UC905596  Anthoxanthum odoratum David D. Keck 1948-7-2 6010 Humboldt 1.5 mi. E. of Freshwater (Garfield), on Kneeland road Comment
  UCD56273  Anthoxanthum odoratum Harley P. Chandler 1901-5-1 1106 Humboldt North Coast Ranges, Humboldt Bay. 30 Comment
  HSC37193  Anthriscus caucalis Barbara Kelly 1976-5-8 250 Humboldt Westhaven Stables, 1 mi from 101 on Westhaven Dr. Comment
  JEPS5353  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1933-8-30 13004 Humboldt Horse Mountain; Northern Coast Ranges 1066 Comment
  RSA43833  Antirrhinum vexillocalyculatum subsp. breweri H. M. Pollard 1947-8-28 s.n. Humboldt NE Perch Creek, Oreleans region. 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
  HSC18037  Aquilegia formosa var. formosa F. B. Plett 1963-5-11 45 Humboldt 1.5 mi. N of Trinidad on old Hwy. 101 Comment
  HSC57331  Arabis breweri var. breweri Overton, Marvin Butler 1979-7-25 9875 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  CAS-BOT-BC167260  Aralia californica Volney Rattan 1882-1-1 s.n. Humboldt Unspecified Comment
  HSC31496  Arbutus menziesii Steve Selva, Roger Jensen 1974-8-27 87 Humboldt Hwy 299 ca. 1.0 mi. E of Blue Lake Comment
  HSC7598  Arbutus menziesii D. E. Anderson 1962-3-17 1932 Humboldt ca. 3 mi. W of Bridgeville. On S facing bank above the Van Duzen River Comment
  UC915722  Arbutus menziesii W. L. Jepson 1903-6-23 50 Humboldt near Briceland Comment
  CAS-BOT-BC407747  Arceuthobium abietinum Doris K. Kildale 1926-9-5 2634 Humboldt Lasseck's Peaks, between Goat Camp and Signal Peak 1661 Comment
  UC1225936  Arctostaphylos Joseph P. Tracy 1947-7-5 17787 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC585953  Arctostaphylos Joseph P. Tracy 1932-7-18 10722 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  JEPS38981  Arctostaphylos bakeri subsp. bakeri Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
Read comments
Mar 7 2007
  CAS-BOT-BC24093  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast range Horse Mt. 1524 Comment
  CAS-BOT-BC25253  Arctostaphylos canescens subsp. canescens D. Norris 1970-5-20 12181 Humboldt Crest of ridge on Big Hill Rd. E of Hoopa. Comment
  HSC99410  Arctostaphylos canescens subsp. canescens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 59 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
  JEPS109597  Arctostaphylos canescens subsp. canescens Dean W. Taylor 2002-9-12 18339 Humboldt ca. 0.5 mi N of Lake Prairie 1097 Comment
  SEINET11995492  Arctostaphylos canescens var. sonomensis W. Knight, Knight, I. 1988-1 s.n. Humboldt on embankment between Summit Rd junction & electronic towers at Summit, Horse Mt. Recreational Area Comment
  CAS-BOT-BC23747  Arctostaphylos columbiana P. C. Everett; E. K. Balls 1959-10-25 23965 Humboldt 8.8 mi. NE from Blue Lake, U.S. hwy. 299, Arcata to Willow Creek. 274 Comment
  CAS-BOT-BC23769  Arctostaphylos columbiana Joseph P. Tracy 1932-2-28 9772 Humboldt Around Humboldt Bay 60 Comment
  CAS-BOT-BC23809  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  HSC33254  Arctostaphylos columbiana Thomas W. Nelson 1975-3-20 1750 Humboldt Along Kneeland Rd. just S of its junction with Maple Creek Rd. Losey property. 671 Comment
  HSC68133  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 1975-4-6 8052 Humboldt 3 mi. N of Whitehorn, across from the CA Dept. of Forestry Fire Station Comment
  RSA622692  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27674 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1198663  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13138 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC249506  Arctostaphylos columbiana Joseph P. Tracy 1922-4-30 6044 Humboldt ridge w Green Point; Northern Coast Ranges, Bald Mountain 609 Comment
  UC571196  Arctostaphylos columbiana H. L. Mason 1932-7-21 7104 Humboldt Trinidad Head Comment
  UCD50695  Arctostaphylos columbiana Lincoln Constance 1934-5-24 638 Humboldt Bordering lower Look Prairie on E. side. 121 Comment
  POM209627  Arctostaphylos columbiana var. columbiana H. E. Parks 1931-12 4950 Humboldt Hobson's Trinidad. 61 Comment
  UCD51010  Arctostaphylos glandulosa Lincoln Constance 1984-6-15 886 Humboldt Summit of Grasshopper Peak. 975 Comment
  UCSB11320  Arctostaphylos glandulosa Zinke, P. 1950-10-9 Humboldt King Peak 1280 Comment
  POM286175  Arctostaphylos glandulosa subsp. cushingiana Lyman Benson 1929-7-19 1592 Humboldt Dyerville to Matole River. Comment
  HSC35598  Arctostaphylos knightii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2013 Humboldt French Camp, Bald Hills. Comment
  HSC100093  Arctostaphylos manzanita J. P. Smith, J. O. Sawyer 2010-3-22 12710 Humboldt Along Hwy. 36, E of Dinsmore. 734 Comment
  HSC37829  Arctostaphylos manzanita Thomas W. Nelson, Jane P. Nelson 1976-2-21 2249 Humboldt Tish-Tang Campground Comment
  RSA633025  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27805 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  SEINET2030098 Image available Arctostaphylos manzanita W. K. Fisher 1899-6-3 29 Humboldt Hoopa Valley Comment
  SEINET11995491  Arctostaphylos manzanita W. Knight, Knight, I. 1988-1 6362 Humboldt Bald Hill Road about 21.5 mi from US 101 en route to Hoopa 930 Comment
  CAS-BOT-BC24367  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-9-5 2614 Humboldt Lesseck's Peaks. 1371 Comment
  CAS-BOT-BC24373  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1925-8-13 1382 Humboldt Willoe Creek Flat. 152 Comment
  UC585956  Arctostaphylos nevadensis Joseph P. Tracy 1935-7-30 14380 Humboldt Salmon Summit 2103 Comment
  CAS-BOT-BC40064  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13160 Humboldt French Camp Ridge 1066 Comment
  HSC102573  Arctostaphylos patula M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1560 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC40550  Arctostaphylos patula Thomas W. Nelson, Jane P. Nelson 1976-5-23 2524 Humboldt SW facing slopes 1666 Comment
  CAS-BOT-BC43982  Arctostaphylos uva-ursi Alice Eastwood 1923-8-14 12312 Humboldt Samoa Comment
  CAS-BOT-BC43997  Arctostaphylos uva-ursi Harley P. Chandler 1901-5-1 1133 Humboldt Humboldt Bay 3 Comment
  CAS-BOT-BC46795  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  RSA12763  Arctostaphylos uva-ursi C. B. Wolf 1930-10-28 6114 Humboldt Samoa. 15 Comment
  SBBG5514  Arctostaphylos uva-ursi H. and M. Dearing 1939-5-25 3436 Humboldt near Samoa Comment
  SEINET3106998  Arctostaphylos uva-ursi Steve Selva, Roger Jensen 1974-8-28 91 Humboldt Approx 5 mi S of Arcata on the sand dunes of the Samoa Peninsula. Comment
  UC180220  Arctostaphylos uva-ursi Joseph P. Tracy 1914-8-30 4594 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UCD52051  Arctostaphylos uva-ursi Roman Gankin 1965-8-6 555 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  RSA246677  Arctostaphylos uva-ursi var. coactilis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35156 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC48259  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1939-4-29 16265 Humboldt Orleans 121 Comment
  RSA636989  Arctostaphylos viscida subsp. viscida Jon E. Keeley 1996-10-13 27788 Humboldt Bald Hills Road, eastern end of Redwood National Park, 223 km W of Hwy 96, N of Eureka. 600 Comment
  SEINET200929  Aristida oligantha J. P. Tracy 1919-9-15 5222 Humboldt Northern Coast Ranges; valley of Trinity River near mouth of Willoe Creek 152 Comment
  POM232100  Armeria maritima subsp. californica I. L. Wiggins 1930-7-11 4683 Humboldt Near Samoa Comment
  UC1198608  Armeria maritima subsp. californica Joseph P. Tracy 1905-4-30 2179 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  UCSB15631  Armeria maritima subsp. californica Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula on western side of Humboldt Bay Comment
  CAS-BOT-BC82102  Arnica cernua Joseph P. Tracy 1938-6-13 15902 Humboldt Horse Mountain 1432 Comment
  HSC46306  Arnica cernua J. P. Smith, J. O. Sawyer 1973-5-12 6702 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC79315  Arnica cordifolia D. K. Imper 1982-7-2 Humboldt Six Rivers National Forest, near Lassics Lookout 1524 Comment
  UC176419  Arnica cordifolia Joseph P. Tracy 1913-6-17 4177 Humboldt at summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC58540  Arnica discoidea Overton, Butler 1979-7-23 9505 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  POM160898  Arnica discoidea Joseph P. Tracy 1923-6-20 6335 Humboldt Briceland 305 Comment
  RSA12448  Arnica discoidea C. B. Wolf 1934-7-1 5845 Humboldt 2.7 mi from Briceland on rd. to Shelter Cove. 91 Comment
  RSA167207  Arnica discoidea Joseph P. Tracy 1950-8-8 19273 Humboldt 2 miles E of town, on trail to Croghan Hole, Trinity Summit, near Box Camp. 1524 Comment
  HSC48525  Arrhenatherum elatius Thomas W. Nelson, Jane P. Nelson 1978-7-3 4412 Humboldt McKeown Ranch, N of Dinsmore Comment
  RSA167208  Artemisia douglasiana Joseph P. Tracy 1947-8-24 17892 Humboldt Trinity Summit- Meadow at Box Camp 1463 Comment
  RSA289423  Artemisia dracunculus Lyman Benson 1929-7-16 1824 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  HSC4743  Artemisia pycnocephala Jerry Parker 1968-11-22 247 Humboldt Mckinleyville Beach, Foot of Murray Rd. Comment
  CAS-BOT-BC97246  Artemisia suksdorfii Doris K. Kildale 1926-8-12 2491 Humboldt Moonstone Beach Comment
  RSA40781  Artemisia suksdorfii C. B. Wolf 1944-10-26 11470 Humboldt Redwood Highway at Junction of road to Crannell 15 Comment
  UC204825  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt 3 mi s point of cape; Northern Coast Ranges, Cape Mendecino 3 Comment
  UC154232  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region 0 Comment
  UC1198119  Asarum caudatum Joseph P. Tracy 1925-3-15 6942 Humboldt Blue Slide; on Van Duzen River 91 Comment
  UC55774  Asarum caudatum P. E. Goddard 1901-7-27 117 Humboldt Trinity Summit Comment
  HSC3265  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Forest near Orick Comment
  HSC69621  Asarum caudatum R. Kalal 1979-5-5 70 Humboldt Fickle Hill Rd., 1 mi. E of 11th St., Arcata 189 Comment
  SD58206  Asarum caudatum Lincoln Constance 1934-6-2 774 Humboldt Bull Creek Region, South Fork Eeel River, Bull Creek road to mouth of Bull Creek and up Bull Creek Comment
  HSC3274  Asarum hartwegii D. E. Anderson 1965-5-8 3647 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. Comment
  HSC65474  Asarum hartwegii Gail Newton 1980-6-24 560 Humboldt Near Ladder Rock 1570 Comment
  HSC72812  Asarum hartwegii Gail Newton 1980-7-20 1595 Humboldt Near Bell Swamps 1463 Comment
  HSC102064  Aspidotis densa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 966 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 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
  CAS-BOT-BC177275  Astragalus R. C. Barneby 1954-5-19 11570 Humboldt On Henry Tosteon Ranch near Bear Butte about 4 mi. s. of Miranda 762 Comment
  CHSC96713  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land. UTM Zone 10, 411418E, 4498706N. 700 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
  HSC71068  Astragalus rattanii var. rattanii Thomas W. Nelson, Jane P. Nelson 1977-5-30 3402 Humboldt Above Mad River at Anderson's Ford. 640 Comment
  UC1174495  Astragalus rattanii var. rattanii Volney Rattan June 1882 Humboldt Comment
  UC162811  Astragalus rattanii var. rattanii Joseph P. Tracy 1903-5-23 1903 Humboldt along sand bars of Eel River at Alder Point; Northern Coast Ranges, Eel River at Alder Point 91 Comment
  UC180213  Astragalus umbraticus Joseph P. Tracy 1914-7-5 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  HSC99540  Athyrium filix-femina K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 205 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA333466  Athyrium filix-femina subsp. cyclosorum Dave Kelly, W. Wisura 1985-7-30 4069 Humboldt 4.7 miles south of Orleans, along highway 96 Comment
  HSC54884  Athyrium filix-femina var. cyclosorum G. L. Clifton, Terry Griswold 1979-7-25 10892 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC93956  Atriplex gmelinii var. gmelinii Gordon Leppig 1999-10-25 1266 Humboldt Eureka, PALCO Marsh 1 Comment
  HSC90252  Atriplex prostrata Jean Hanson 1980-8-28 111 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka, across from Coast Guard Station and within 30 ft. of hi tide line and within 1 ft. of water inland. Comment
  UCD56296  Avena fatua A. H. Murphy 1951-4-2 s.n. Humboldt Side of Highway 101 / mile south of Phillipsville. Comment
  CAS-BOT-BC66217  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  UC1239784  Azolla filiculoides Joseph P. Tracy 1911-6-25 3245 Humboldt pool back of Holmes Mill Bucksport; Northern Coast Region 0 Comment
  CDA30197  Baccharis pilularis M. K. Beyers, I. Shepardson 2009-9-13 258 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  UC673091  Baccharis pilularis Joseph P. Tracy 1940-10-17 16765 Humboldt Camp Grant, along Eel River, 2 to 5 mi e of South Fork Eel River 45 Comment
  HSC100425  Baccharis pilularis Carl C. Marshall Feb 1887 391 Humboldt Hillsides near the coast. Comment
  HSC5115  Baccharis pilularis subsp. pilularis Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  HSC48865  Barbarea orthoceras Brad Klipfel 1973-6-10 58 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC102640  Barbarea vulgaris M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1624 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC39161  Bellis perennis D. E. Anderson, J. P. Smith 1971-6-28 - 1243 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UCR123950  Bellis perennis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6993 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  CAS-BOT-BC48156  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain in cold wet meadow near high prairie 1066 Comment
  SEINET12219011  Bensoniella oregona J. P. Tracy 1951-1 19416 Humboldt East side of Snow Camp Meadows Comment
  CAS-BOT-BC400046  Berberis L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  HSC74649  Berberis nervosa M. A. Baker 1980-5-17 1207 Humboldt Near Le Perron Peak 792 Comment
  RSA167296  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. 122 Comment
  CAS-BOT-BC412987  Bistorta bistortoides Doris K. Kildale 1928-5-27 5936 Humboldt Kneeland Prairie 853 Comment
  CAS-BOT-BC412988  Bistorta bistortoides Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  HSC102532  Bistorta bistortoides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1518 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  CHSC26466  Blechnum spicant J. Detzer 1977-4-8 3 Humboldt S end of Patricks Point State Park, ca. 0.2 mi w of Hwy. 101 and 5 mi n of Trinidad. 60 Comment
  HSC985  Blechnum spicant W. R. Brigham 1962-4-7 1 Humboldt S of Big Lagoon Comment
  UC562687  Boechera retrofracta Joseph P. Tracy 1935-7-30 14379 Humboldt Salmon Summit 2103 Comment
  HSC102034  Botrychium multifidum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 937 Humboldt Patterson Meadows 1555 Comment
  CDA42735  Botrychium multifidum T. C. Fuller 1961-9-28 7054 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC12718  Botrychium multifidum C. E. Fellows 1970-10-7 373 Humboldt McKinleyville, 1/8 mi. W of the end of Murray Rd. Comment
  CAS-BOT-BC420253  Boykinia occidentalis Roxana S. Ferris 1937-8-21 9390 Humboldt cliff above beach, Shelter Cove Comment
  RSA32653  Boykinia occidentalis Doris K. Kildale 1925-6-17 701 Humboldt [Unspecified] Comment
  CAS-BOT-BC145428  Briza maxima Joseph P. Tracy 1930-6-15 8758 Humboldt Alder Point. 152 Comment
  UCD57437  Briza minor A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3455 Humboldt 2 miles north of Orleans. Comment
  HSC98640  Brodiaea elegans subsp. elegans Cara Witte 2008-7-10 844 Humboldt National Forest 1. 5 miles south of intersection with Forest Service Road 5N04. Before a cattle guard. 1350 Comment
  JEPS11984  Brodiaea elegans subsp. elegans Rimo Bacigalupi with G. T. Robbins 1954-6-28 4656 Humboldt 4.7 mi s Weitchpec (along highway high above Trinity River, between Hoopa Valley and Weitchpec); Hoopa Indian Reservation 167 Comment
  HSC32915  Brodiaea stellaris Thomas W. Nelson, Jane P. Nelson 1973-3-28 964 Humboldt McKeown Ranch N of Dinsmore Comment
  SEINET200765  Brodiaea stellaris Joseph P. Tracy 1923-7-4 6526 Humboldt Valley of South Yager Creek 762 Comment
  POM160287  Brodiaea stellaris Joseph P. Tracy 1925-5-30 7024 Humboldt Mcclellan Mountain. 823 Comment
  HSC58761  Bromus carinatus var. carinatus Walter Overton, Marvin Butler 1979-7-26 10101 Humboldt Near Cold Spring, close to the town of Willow Creek. 1417 Comment
  HSC102213  Bromus carinatus var. marginatus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1129 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UCD59150  Bromus carinatus var. marginatus A. H. Murphy 1951-5-18 s.n. Humboldt 1.5 mi. south of Petrolia on county road. West side of Mattole River near bridge. Comment
  UC53638  Bromus carinatus var. maritimus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka; North Coast Ranges Comment
  UC212889  Bromus commutatus Joseph P. Tracy 1919-5-25 5138 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC552679  Bromus commutatus Joseph P. Tracy 1935-5-25 13873 Humboldt Fort Seward 106 Comment
  UCD58512  Bromus diandrus Linda M. Barker 1976-4-30 1403 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC32487  Bromus hordeaceus Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide Comment
  HSC37852  Bromus hordeaceus Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  HSC90694  Bromus hordeaceus Gail Newton 1982-6-5 3585 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC71600  Bromus laevipes M. A. Baker 1980-6-26 2411 Humboldt Near Sims Creek 610 Comment
  UC1145188  Bromus laevipes Joseph P. Tracy 1950-6-15 18785 Humboldt 7 mi n of Haris (Mail Ridge); Mail Ridge 1036 Comment
  CAS-BOT-BC161606  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt French Camp Ridge. 1066 Comment
  HSC58381  Bromus suksdorfii Terry Griswold 1979-7-25 10855 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  SEINET200635 Image available Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Larrabee Valley. 701 Comment
  UC526730  Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Northern Coast Ranges, Larrabee Valley Larrabee Valley; Northern Coast Ranges, Larrabee Valley 701 Comment
  SEINET181181 Image available Bromus vulgaris Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15067 Humboldt Bolling Grove State Park. Comment
  UC1145187  Bromus vulgaris Joseph P. Tracy 1949-6-20 18317 Humboldt 6 mi se of Arcata (Fickle Hill); Fickle Hill 609 Comment
  CAS-BOT-BC36915  Cakile maritima var. maritima Joseph P. Tracy 1940-9-21 16724 Humboldt Near Samoa, on Humboldt Bay. 3 Comment
  UC526774  Calamagrostis breweri Joseph P. Tracy 1932-7-14 10553 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  BLMAR12  Calamagrostis foliosa Brad Barr June, 1982 12 Humboldt King range, slide area above smith cabin in steep slopes Comment
  UC37779  Calamagrostis foliosa H. N. Bolander 1866-6 6470 Humboldt Mattole District; bluffs along seashore; Mattole District, Humboldt Co. Comment
  HSC44185  Calamagrostis koelerioides Thomas W. Nelson, Jane P. Nelson 1977-9-3 3736 Humboldt Ridge NW of the pond above Alder Spring 1555 Comment
  UC1103287  Calamagrostis nutkaensis Joseph P. Tracy 1918-7-21 5079 Humboldt Humboldt Hill Northern Coast Ranges, <area> around Humboldt Bay 182 Comment
  UC1198379  Calandrinia ciliata Joseph P. Tracy 1930-6-8 8735 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC80384  Calocedrus decurrens G. A. Coleman 1901-7-24 s.n. Humboldt Head of Supply Creek, Hoopa Indian Reservation Comment
  HSC56953  Calocedrus decurrens Overton, Butler 1979-7-23 9457 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC58098  Calocedrus decurrens G. L. Clifton, Griswold 1979-8-1 12019 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CAS-BOT-BC488452  Calochortus amabilis Elizabeth Parsons Hawver 1915-6-1 n.s. Humboldt Carlotto Comment
  UC1197676  Calochortus amabilis Joseph P. Tracy 1930-6-15 8749 Humboldt Bosworth's Larrabee Creek 457 Comment
  SEINET4169777  Calochortus catalinae Unknown 1932-7-12 Humboldt Trinity Summit Comment
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Sep 18 2015
  SEINET4169781  Calochortus catalinae Unknown 1935-7-14 Humboldt Clear Lake 1524 Comment
  CHSC24838  Calochortus tolmiei A. D. Launer 1976-4-9 2 Humboldt N roadbank of Church St., ca. 100 yds e of Blocksburg. 472 Comment
  HSC97969  Calochortus tolmiei Cara Witte, Michael Scott 2007-6-22 347 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  RSA113893  Calochortus tolmiei E. K. Balls, Lee W. Lenz 1955-5-15 20738 Humboldt 13.5 miles SW from Ferndale along Old Coast road to Capetown. 335 Comment
  UC146213  Calochortus tolmiei Joseph P. Tracy 1908-6-7 2612 Humboldt Butler Valley Northern Coast Ranges 152 Comment
  CAS-BOT-BC494359  Calochortus tolmiei W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  HSC15330  Calochortus tolmiei D. E. Anderson 1962-5-1 2192 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  SEINET10528701  Calochortus tolmiei Lincoln Constance, Alan A. Beetle 1940-5-17 Constance 2614 Humboldt Perianth white to purplish, densely hairy within; gland purple. With Amelanchier and prunus, serpentine? Soil of openings in cut-over pinus Ponderosa-pseudotsuga-quercus garryana forest, larrabee valley, near eureka Comment
  UC1197687  Calochortus tolmiei Joseph P. Tracy 1913-6-10 4086 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC1222549  Calochortus tolmiei Joseph P. Tracy 1951-5-6 19394 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  CAS-BOT-BC496923  Calochortus vestae Volney Rattan 1882-6-1 s.n. Humboldt Near Bridgeville Comment
  SEINET2474864 Image available Caltha leptosepala var. biflora Joseph P. Tracy 1930-1 8971 Humboldt South Fork Mountain, at McKay Camp 1680 Comment
  POM261031  Calycadenia ciliosa Joseph P. Tracy 1938-8-14 16117 Humboldt South Fork of the Trinity River: mountain slopes west of its mouth. 305 Comment
  UC175973  Calycadenia truncata Joseph P. Tracy 1908-7-1 2761 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers); Northern Coast Ranges 914 Comment
  CAS-BOT-BC275366  Calycadenia truncata var. truncata Doris K. Kildale 1925-7-4 982 Humboldt Redwood Creek at [Bern?'s] Comment
  HSC37699  Calypso bulbosa J. D. Ackerman 1976-5-29 758 Humboldt Lanphere-Christensen Dunes Nature Conservency, W of Arcata, near Lanphere's former residence. Comment
  HSC95802  Calypso bulbosa Kevin Thomas 2004-4-26 15 Humboldt Titlow Hill Rd. Comment
  UC1196475  Calypso bulbosa Arthur E. Connick 1928-4-15 Humboldt Prairie Creek 91 Comment
  HSC55120  Calyptridium monospermum Gilbert Muth 1979-8-1 11899 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  JEPS31595  Calystegia occidentalis subsp. occidentalis W. L. Jepson 1934-5-7 16700 Humboldt Buckeye Prairie , Buckeye Prairie (Bull Creek) Comment
  SBBG5774  Calystegia occidentalis subsp. occidentalis H. and M. Dearing 1939-5-24 Humboldt Pass Rd, Dyerville to Mattole Comment
  HSC40013  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1976-7-1 2914 Humboldt N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC48792  Calystegia occidentalis subsp. occidentalis Brad Klipfel 1975-6-17 660 Humboldt 2 mi. E of Titlow Hill Rd. along Hwy. 299 Comment
  UC176994  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1912-8-3 3974 Humboldt Valley Van Duzen River (opposite Buck Mountain, Northern Coast Ranges); Northern Coast Ranges, Valley of Van Duzen River, Buck Mount 762 Comment
  HSC104033  Calystegia soldanella E. R. Fyer 2015-4-26 24 Humboldt Along New Navy Base Road 9 Comment
  SEINET3992217  Camassia leichtlinii Unknown 1912-6-30 3717 Humboldt Eureka 61 Comment
  UC180216  Camassia quamash Joseph P. Tracy 1914-7-4 4538 Humboldt Bald Mountain, High Prairie High Prairie; Northern Coast Ranges, Bald Mountain, High Prairie 1066 Comment
  CAS-BOT-BC493384  Camassia quamash subsp. linearis M. S. Jussel 1931-5-1 s.n. Humboldt On road to Garberville Comment
  HSC16448  Camissonia cheiranthifolia R. E. Hafenfeld 1965-5-9 26 Humboldt 1/2 mi. S of Squashan Creek near Gold Bluff Beach Rd. Comment
  CAS-BOT-BC160235  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Carl B. Wolf 1927-8-29 1221 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  CAS-BOT-BC160239  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. Harris; S. K. Harris; Clarence Crane, Jr. 1939-8-23 s.n. Humboldt On beach-sand at Samoa Comment
  CHSC19519  Camissoniopsis cheiranthifolia subsp. cheiranthifolia P. F. Yull 1966-4-28 129 Humboldt One mile south of Fairhaven. Sand dunes. Comment
  SEINET10463114  Campanula prenanthoides Willis L. Jepson 1932-7-26 Jepson 16413 Humboldt BULL CREEK Comment
  SEINET10873253  Campanula prenanthoides Kildale 1926-6-27 KILDALE 2189 Humboldt Sweasey Lake, McClellan Mountain 823 Comment
  SEINET10972405  Campanula prenanthoides Willis L. Jepson 1932-7-24 Jepson 16383 Humboldt FRUITLAND Comment
  UC1585406  Campanula scouleri R. Raiche, K. Zadnik, and H. Forbes 1991-10-2 UCBG 28 Humboldt on Bair Rd. sw Hoopa; Pine Ridge Summit 970 Comment
  HSC45593  Cardamine californica Diane L. Reed 1978-4-22 38 Humboldt Trinidad Head Comment
  HSC6683  Cardamine californica Lincoln Constance, R. C. Rollins 1942-5-20 2998 Humboldt Eel River, 1 mi. N of Pepperwood 46 Comment
  SEINET6914416  Cardamine californica var. integrifolia J. P. Tracy 1911-4-2 3171 Humboldt Immediate vicinity of Eureka, altitude 0-500 feet. Comment
  UC494001  Cardamine californica var. sinuata Parks and Tracy 916 Humboldt Lower Van Duzen River 60 Comment
  CAS-BOT-BC37890  Cardamine oligosperma Alice Eastwood 1907-4-21 21 Humboldt Trinidad. Comment
  CAS-BOT-BC37891  Cardamine oligosperma Doris K. Kildale 1927-3-20 2916 Humboldt Philipsville. Smith Fork of Eel River. Comment
  HSC6641  Cardamine oligosperma Gerald T. Rood 1962-5-11 3 Humboldt Kneeland Rd., 0.25 mi. E of Barry Rd. Comment
  JEPS79827  Cardamine pensylvanica Joseph P. Tracy 1937-7-2 15401 Humboldt head Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  JEPS79828  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  CAS-BOT-BC384766  Cardionema ramosissimum D. E. Breedlove 1962-6-7 3048 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  RSA0097053  Cardionema ramosissimum R. F. Thorne, Percy C. Everett 1965-8-5 35155 Humboldt Samoa Dunes. 3 Comment
  HSC100466  Carex Carl C. Marshall May 1886 207 Humboldt Tilley's Place. Comment
  HSC96947  Carex abrupta Ryoko Ito, Shauna McDonald 2007-6-13 10 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  SEINET10588473  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 Tracy 13504 Humboldt Dense clumps in wettest places. Dry Lagoon - along coast in front of South End of Stone Lagoon. 3 Comment
  UC585638  Carex arcta Joseph P. Tracy 1937-8-12 15645 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC18073  Carex athrostachya Joseph Prince Tracy 1934-7-18 13426 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  HSC44019  Carex athrostachya Thomas W. Nelson, Jane P. Nelson 1977-7-4 3591 Humboldt Beside pond above Alder Springs 1585 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
  SEINET10752409  Carex brainerdii Joseph P. Tracy 1935-7-30 Tracy 14350 Humboldt On ridge 2 miles SW of top Shasta Fir Zone. Comment
  HSC76385  Carex concinnoides L. P. Janeway 1982-6-20 13 Humboldt NE facing slope near ridgetop 1 mi. SE of Horse Mtn. along FS 6N36 1384 Comment
  SEINET200967  Carex deweyana Joseph P. Tracy 1900-5-30 830 Humboldt Northern Coast Ranges at Eureka. 0 Comment
  UC750613  Carex deweyana subsp. leptopoda Henry M. Pollard 1945-9-1 Humboldt Camp Creek Klamath River Canyon Comment
  JEPS121644  Carex echinata Jennifer Buck, Danielle Roach 2009-8-20 Humboldt Doehop Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM04A Comment
  UC194806  Carex echinata Joseph P. Tracy 1914-7-4 4532 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC19860  Carex echinata subsp. echinata Joseph Prince Tracy 1933-7-25 12845 Humboldt North Coast Ranges. Grouse Mountains. 1524 Comment
  CHSC90287  Carex echinata subsp. echinata Thomas W. Nelson; Jane P. Nelson 1987-6-11 8602 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 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
  CAS-BOT-BC19861  Carex echinata subsp. echinata Joseph Prince Tracy 1930-7-16 8986 Humboldt North Coast Ranges. South Fork Mountain. At McKay Camp. 1676 Comment
  CHSC85975  Carex echinata subsp. phyllomanica L. P. Janeway 2003-7-30 7943 Humboldt High North Coast Ranges. High North Coast Ranges. White Rock Spring, just above Clear Lake, on southwest side below Titlow Hill Road, 2.9 km southeast of Titlow Hill. 1512 Comment
  RSA167284  Carex feta Joseph P. Tracy 1950-7-6 19010 Humboldt Buck Mountain: High meadow on west side, 3 miles south of Burr Valley, on the Albee Road. 1159 Comment
  SEINET11630974  Carex feta J. P. Tracy 1950-1 19010 Humboldt Buck Mountain, 3 mi S of Burr Valley, on Albee Road 1158 Comment
  UC303017  Carex geyeri Joseph P. Tracy 1926-6-20 7639 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC76807  Carex harfordii L. P. Janeway 1982-6-17 10 Humboldt 305 Comment
  CHSC90288  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8579 B Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  CHSC93148  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8584 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC61630  Carex lenticularis var. lipocarpa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  UC203892  Carex leptalea Joseph P. Tracy 1918-7-21 5086 Humboldt Northern Coast Ranges, around Humboldt Bay, Humboldt Hill Humboldt Hill; Northern Coast Ranges, Humboldt Bay, Humboldt Hill 91 Comment
  HSC48394  Carex leptopoda Brad Klipfel 1973-6-10 150 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA88691  Carex leptopoda F. W. Peirson 1923-7-11 3665 Humboldt 18 miles N. of Eureka Comment
  HSC48374  Carex leptopoda D. H. Norris May 1970 12458 Humboldt Upper reaches of Freshwater Lagoon, S of Orick Comment
  HSC103595  Carex luzulina Thomas W. Nelson, Jane Nelson 1987-6-11 8603 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  HSC102622  Carex microptera M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1609 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC249512  Carex multicaulis Joseph P. Tracy 1922-4-30 6006 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC103353  Carex nervina Thomas W. Nelson, Jane Nelson 1987-6-11 8604 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  CAS-BOT-BC119548  Carex nudata A. A. Heller 1923-7-10 13797 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  CHSC40163  Carex nudata L. P. Janeway 1984-4-5 755 Humboldt Along the west edge of Trinity River near the Willow Creek airstrip. 137 Comment
  CAS-BOT-BC119387  Carex obnupta Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  POM289940  Carex obnupta Lyman Benson 1929-7-15 s.n. Humboldt Clam Beach, Trinidad. Comment
  HSC48138  Carex ovalis D. H. Norris 1971-7-17 19601 Humboldt Along Redwood House Rd., about 3 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  CAS-BOT-BC119245  Carex pachystachya Joseph Prince Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  HSC76847  Carex praticola L. P. Janeway 1982-6-20 15 Humboldt Near road underdrain, 30 m N on FS Rd. 6N36 from Titlow Hill Rd. 1384 Comment
  HSC70467  Carex rossii J. P. Tracy 1904-5-1 2041 Humboldt Eureka 0 Comment
  CAS-BOT-BC118006  Carex rossii Joseph Prince Tracy 1935-6-2 13921 Humboldt In fern prairies on hillside, Big Lagoon 30 Comment
  CHSC115860  Carex subbracteata Peter F. Zika 2011-7-3 25493 Humboldt Titlow Hill Road, 3 road miles SE of Route 299 at Berry Summit, 1 air km SW of Horse Mountain, Outer North Coast Ranges. 1190 Comment
  CAS-BOT-BC116905  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-23 4842 Humboldt 8 miles from Kneeland on road to Yager. Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  UC194812  Carex tumulicola Joseph P. Tracy 1912-7-26 3835 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC562246  Carex tumulicola Joseph P. Tracy 1932-5-1 9853 Humboldt vicinity Garberville; Redway 121 Comment
  JEPS80033  Carex unilateralis Joseph P. Tracy 1912-7-21 3783 Humboldt Alton; Northern Coast Region 30 Comment
  CAS-BOT-BC115534  Carex unilateralis Joseph Prince Tracy 1946-5-30 17539 Humboldt Wet gully in grassland near Bridgeville. 457 Comment
  HSC99381  Carex utriculata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 30 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
  POM126087  Carex utriculata Joseph P. Tracy 1924-7-4 6706 Humboldt Snow Camp. 1372 Comment
  HSC102124  Carex vesicaria M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1028 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC562331  Carex vesicaria Joseph P. Tracy 1934-8-29 13622 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  POM126175  Carex viridula Joseph P. Tracy 1924-7-13 6720 Humboldt Big Lagoon 6 Comment
  HSC59736  Castilleja affinis subsp. litoralis Clark L. Miller 1979-5-13 6127 Humboldt N of Trinidad along Patricks Point Dr. Comment
  UC1011939  Castilleja affinis subsp. litoralis F. W. Pennell and J. P. Tracy 1940-7-6 26082 Humboldt w of Lolita; Table Bluff 1 Comment
  UC201381  Castilleja affinis subsp. litoralis Joseph P. Tracy 1918-7-21 5081 Humboldt Humboldt Hill; Northern Coast Ranges, Humboldt Bay Region 152 Comment
  HSC32442  Castilleja ambigua subsp. humboldtiensis Linda M. Barker 1974-4-14 143 Humboldt South G St., Arcata 0 Comment
  HSC36100  Castilleja ambigua subsp. humboldtiensis Tom Mills 1974-5-12 Humboldt Beside Humboldt Bay near Bayside Cut-off Comment
  JEPS76824  Castilleja ambigua subsp. humboldtiensis L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4804 Humboldt about 1.2 mi n Eureka bridge (Samoa peninsula); Samoa peninsula Comment
  UC604629  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  HSC76226  Castilleja applegatei Overton, Butler 1979-7-24 9742 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC604635  Castilleja applegatei subsp. martinii Joseph P. Tracy 1932-5-22 10118 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  HSC102121  Castilleja arachnoidea M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1025 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC162564  Castilleja attenuata Joseph P. Tracy 1911-5-30 3198 Humboldt Eureka; Northern Coast Region 0 Comment
  UC582569  Castilleja attenuata Joseph P. Tracy 1932-5-1 9887 Humboldt vicinity Garberville 121 Comment
  BLMAR71  Castilleja exserta Jennifer Anthony-Wheeler 1994-5-18 71 Humboldt Samoa/manilla dunes, growing in dune mat areas thru-out wetland 6 Comment
  JEPS15207  Castilleja exserta subsp. exserta R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quad. Comment
  HSC49514  Castilleja exserta subsp. latifolia R. York 1979-5-18 292 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  HSC35453  Castilleja exserta subsp. latifolia J. D. Ackerman 1975-8-2 623 Humboldt North Spit Humboldt Bay, W of Samoa, across from 2nd exit Comment
  RSA516622  Castilleja litoralis R. C. Bacigalupi, G. Thomas Robbins, C. L. Custer 1954-8-11 4758 Humboldt 1.2 miles south of Trinidad. Comment
  CAS-BOT-BC244881  Castilleja miniata Milo S. Baker 1927-8-21 2486 a Humboldt Vicinity of Bald Mt. 914 Comment
  JEPS10641  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1921-6-12 5815 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC168991  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1901-5-28 1244 Humboldt Redwood Creek North Coast Ranges (at Bair's ranch) 121 Comment
  JEPS83014  Castilleja subinclusa subsp. franciscana L. R. Heckard 1984-5-14 6156 Humboldt 2 mi s Phillipsville (just n of Freeway 101, on Avenue of the Giants) 83 Comment
  RSA398822  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2869 Humboldt Goat Mtn lookout 1666 Comment
  HSC37053  Ceanothus incanus R. Sutherland 1975-5-26 1 .26575 Humboldt 305 Comment
  CAS-BOT-BC63679  Ceanothus integerrimus L. B. Kildale 1927-7-3 3635 Humboldt Willow Creek Flat. 152 Comment
  HSC73241  Ceanothus integerrimus M. A. Baker 1980-5-18 1338 Humboldt Near Black Mtn. 792 Comment
  UC1198005  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13181 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UCR32170  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  CAS-BOT-BC52042  Ceanothus prostratus Doris K. Kildale 1926-4-25 1810 Humboldt Hoopa Mountain 792 Comment
  UC902165  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17526 Humboldt along Trinity Highway (Willow Creek Canyon); Willow Creek Canyon 609 Comment
  JEPS42139  Ceanothus thyrsiflorus W. L. Jepson 1902-6-24 1928 Humboldt near Angel's Ranch (between Korbel and Acorn) 274 Comment
  SBBG4552  Ceanothus thyrsiflorus var. thyrsiflorus M. J. Cody 1938-7-14 Humboldt Trinidad Comment
  SEINET12211103  Ceanothus velutinus F. H. Utech 1986-1 86 -383 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  RSA24331  Ceanothus velutinus var. laevigatus Carl B. Wolf 1941-2-26 9964 Humboldt 4.4 miles W of Klamath River Bridge on Witchpec to Orick road. 305 Comment
  UC906721  Centaurea benedicta Harold E. Parks and Joseph P. Tracy 1942-7-2 11580 Humboldt Dinsmore's 762 Comment
  SEINET200850  Centaurea calcitrapa J. P. Tracy 1940-10-17 16760 Humboldt South Fork Station near Dyerville 46 Comment
  UC1119132  Centaurea melitensis H. L. Person 1932-7-23 Humboldt road e of Korbel; Eureka Quadrangle Comment
  HSC100256  Centaurea solstitialis J. P. Smith 2009-8-3 12644 Humboldt Along the Eel River. 23 Comment
  UC582526  Centaurea solstitialis Joseph P. Tracy 1933-8-27 13002 Humboldt 2 to 5 mi e of South Fork (along Eel River); Eel River 45 Comment
  HSC61725  Centaurea solstitialis Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan 198 Comment
  RSA69417  Centaurium muehlenbergii F. W. Peirson 1923-7-10 3803 Humboldt Garberville. Comment
  UC582863  Centaurium muehlenbergii P. A. Munz 1936-8-9 14329 Humboldt 5 mi n Humboldt-Mendocino County line (on Redwood Highway) Comment
  CAS-BOT-BC384899  Cerastium arvense Doris K. Kildale 1928-4-29 5967 Humboldt Horse Mountain 853 Comment
  SEINET6904629  Cerastium glomeratum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UCD98070  Cerastium glomeratum Joseph P. Tracy 1948-4-11 17964 Humboldt South Fork Station, on Eel River. 48 Comment
  CAS-BOT-BC179476  Cercis occidentalis C. B. Wolf 1931-8-31 2380 Humboldt Gravel slopes on west side of South Fork of Trinity River, 1 mile above its mouth. The Sandy Bar Swimming Hole 243 Comment
  UC1199058  Cercis occidentalis Joseph P. Tracy 1930-9-8 9176 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1222946  Chaenactis douglasii var. douglasii Joseph P. Tracy 1947-7-9 17853 Humboldt Horse Mountain, top of Horse Mountain 1432 Comment
  SBBG367  Chamaecyparis lawsoniana J. W. Howe 1938-3-30 Humboldt Humboldt County [no specific locality] Comment
  JEPS52356  Chamaesyce serpyllifolia Joseph P. Tracy 1916-9-5 4769 Humboldt 4 mi above mouth of river; Nothern Coast Ranges, South Fork of Eel River Comment
  HSC72962  Cheilanthes gracillima Gail Newton 1980-7-14 1485 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC996  Cheilanthes gracillima D. E. Anderson 1965-4-24 3539 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  RSA478451  Chenopodium botrys M. S. Jussel 1931-5-2 s.n. Humboldt Garberville. Comment
  UC162630  Chenopodium botrys Joseph P. Tracy 1911-7-10 3489 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  RSA273388  Chenopodium botrys Thomas W. Nelson, Jane P. Nelson 1977-9-3 3724 Humboldt Along Forest Service Rd. to north of Alder Springs. 1524 Comment
  UCD98277  Chenopodium macrospermum Malcolm A. Nobs; S. Galen Smith 1949-8-11 1340 Humboldt eastern shore of Stone Lagoon. Comment
  UC673036  Chenopodium pumilio Joseph P. Tracy 1931-10-12 9729 Humboldt Blue Slide Van Duzen River 91 Comment
  UC1197601  Chimaphila menziesii Joseph P. Tracy 1947-7-9 17855 Humboldt Horse Mt. 1432 Comment
  HSC55102  Chimaphila umbellata G. L. Clifton 1979-7-31 11834 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC535746  Chimaphila umbellata Eleanor Armstrong 1173 Humboldt Richardson Grove Comment
  JEPS66585  Chimaphila umbellata Lincoln Constance 1934-6-14 873 Humboldt 2 mi. from mouth of Squaw Creek (on rd. to Grasshopper Peak); Bull Creek Region, S. Fork Eel R. 304 Comment
  UC1225900  Chimaphila umbellata Joseph P. Tracy 1947-7-9 17856 Humboldt Horse Mt. 1432 Comment
  SEINET3992227  Chlorogalum pomeridianum Unknown 1946-7-7 17611 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA43836  Chrysanthemum leucanthemum H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  RSA302606  Chrysanthemum leucanthemum J. R. Shevock 1972-7-26 2230 Humboldt Hwy. 299 305 Comment
  UC419030  Chrysolepis chrysophylla var. chrysophylla H. E. Parks, J. P. Tracy 1930-9-15 765 Humboldt road to Kneeland Bald Hills Comment
  UC902027  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1949-8-7 18434 Humboldt e side Hoopa Valley (near the Big Hill lookout station) 914 Comment
  HSC8064  Chrysolepis sempervirens J. P. Tracy, H. E. Parks 1941-8-28 11541 Humboldt South Fork; Blake Lookout Area 1768 Comment
  UCD130477  Cichorium intybus Lincoln Constance 1934-6-25 933 Humboldt Bull Creek Region, South Fork Eel River, on east side of the road at Englewood across the road from Collins' Englewood Campground. Comment
  JEPS156  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt near Arcata (s of Salmon Creek, Mad River); Mad River Comment
  HSC76194  Cinna latifolia Overton, Butler 1979-8-2 12506 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC562518  Circaea alpina subsp. pacifica Joseph P. Tracy 1936-8-7 15088 Humboldt head of Little Hors-Linto Creek (Trinity Summit); Trinity Summit 1371 Comment
  UC668240  Circaea alpina subsp. pacifica Joseph P. Tracy 1937-6-20 15349 Humboldt 10 mi. up stream from mouth of Bear R.; Bear R. 152 Comment
  UCD144226  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt near Berry Summit on Titlow Hill Road, 3.9 miles south of Highway 229. Comment
  CAS-BOT-BC288720  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  UCD130811  Cirsium vulgare Linda M. Barker 1976-8-24 1684 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC5385  Cirsium vulgare J. W. Johnson 1961-9-10 1113 Humboldt Arcata, S of Dune 3 N, Christenson Farm, Samoa Pennisula Comment
  HSC89489  Cirsium vulgare P. A. Daly 1986-2-28 65 Humboldt Trinidad Head, along trail 61 Comment
  CAS-BOT-BC160953  Clarkia amoena subsp. amoena Doris K. Kildale 1928-7-9 5699 Humboldt Bug Creek - Chaparral Mountain 914 Comment
  UC101803  Clarkia amoena subsp. amoena R. A. Plaskett Humboldt Mattole River Comment
  CAS-BOT-BC160947  Clarkia amoena subsp. amoena Roxana S. Ferris 1937-8-21 9385 A Humboldt Above terrace at Shelter Cove Comment
  CAS-BOT-BC161036  Clarkia amoena subsp. amoena S. K. Harris 1936-6-25 s.n. Humboldt On south side of Domingo Gulch on road from Petrolia to Cape Mendocino 30 Comment
  UC1222852  Clarkia concinna Joseph P. Tracy 1950-7-2 18967 Humboldt 6 mi ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC594154  Clarkia concinna subsp. concinna S. K. Harris, J. P. Tracy 1936-6-10 3265 Humboldt near mouth South Fork Trinity River (hills w of river) 640 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
  CAS-BOT-BC164593  Clarkia gracilis subsp. gracilis Harley P. Chandler 1901-6-1 1363 Humboldt Hupa Indian Reservation 152 Comment
  RSA0060033  Clarkia gracilis subsp. sonomensis Harlan Lewis, M. Lewis 1947-6-13 423 Humboldt Highway 36 at South Fork of Van Duzen River (Bridge 4-119) Comment
  RSA299017  Clarkia gracilis subsp. sonomensis Lincoln Constance 1934-5-23 618 Humboldt South Fork Eel River: upper end of Look Prairie 366 Comment
  CAS-BOT-BC172502  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1916-7-11 6028 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  UC902171  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1947-6-8 17712 Humboldt 5 mi e of town Carlotta (open flat by old Strong's District School House) 60 Comment
  UC20026  Clarkia rhomboidea Harley P. Chandler June, 1901 1339 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC41647  Clarkia rhomboidea Thomas W. Nelson, Jane P. Nelson 1977-7-1 3572 Humboldt Along road 2S08 below Goat Hill 1524 Comment
  UC494115  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  UC275327  Claytonia exigua subsp. glauca Joseph P. Tracy 1923-4-15 6188 Humboldt Redwood Creek;at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  HSC39940  Claytonia rubra subsp. depressa Linda M. Barker 1976-3-22 1336 Humboldt 3 mi. W of Arcata Comment
  HSC17695  Claytonia rubra subsp. depressa S. J. Hawks 1965-2-12 3 Humboldt N end of Eureka Airport Comment
  HSC89441  Claytonia sibirica P. A. Daly 1985-5-3 36 Humboldt Trinidad Head 61 Comment
  HSC45492  Claytonia sibirica Maralyn O'Meara 1972-6-8 103 Humboldt Along Bald Hills Rd., 18 mi. from junction with Hwy. 101 Comment
  CAS-BOT-BC92595  Clematis ligusticifolia Henry M. Pollard 1945-8-28 s.n. Humboldt Near Harley place. Near Orleans. Comment
  CAS-BOT-BC499341  Clintonia andrewsiana Doris K. Kildale 1926-7-22 2413 Humboldt Metropolitan, woods near Canyon Peak Comment
  JEPS55586  Clintonia andrewsiana W. Roderick and H. M. Beard 1960-5-29 Humboldt 7 road mi se of Carlotta Comment
  HSC102559  Clintonia uniflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1547 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC238026  Collinsia Doris Kildale Gillespie 1931-6-7 10601 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC70392  Collinsia grandiflora M. A. Baker 1980-6-8 1908 Humboldt Near Buck Flat. 1554 Comment
  UC1196766  Collinsia grandiflora Joseph P. Tracy 1933-6-13 12572 Humboldt w Hoopa (near summit of Hoopa Mtn on rd from Hoopa to Bair's); Hoopa Mtn 1066 Comment
  UC41804  Collinsia grandiflora W. C. Blasdale 1896-6-8 Humboldt Graham's Comment
  HSC70372  Collinsia rattanii Gail Newton 1980-6-7 129 Humboldt Near Brush Mtn. 1128 Comment
  UC582459  Collinsia rattanii Joseph P. Tracy 1937-5-17 15300 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  RSA125053  Collinsia rattanii Peter H. Raven, R. Snow 1958-7-20 13633 Humboldt 2.8 miles south of junction of Titlow Hill and Friday Ridge roads, near Grouse Mountain. Comment
  UC774987  Collomia heterophylla Carl B. Wolf 1937-8-13 9214 Humboldt 8 mi e Hoopa Valley (on new road towards Trinity Summit); North Coast Range 1219 Comment
  HSC45828  Collomia heterophylla J. P. Smith, J. O. Sawyer 1973-5-12 6672 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  SEINET3479162  Collomia heterophylla S. K. Harris 1942-6-12 Humboldt East of Birds Nest (added later by Bill Schmidt), East of Birds Nest (added later by Bill Schmidt), 4 miles east, Fickle Hill Road to Boynton Prairie Comment
  HSC40675  Collomia tinctoria Thomas W. Nelson, Jane P. Nelson 1976-7-1 2924 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC56227  Collomia tracyi G. L. Clifton, Griswold 1979-8-2 12281 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1197343  Conioselinum pacificum Joseph P. Tracy 1914-7-12 4579 Humboldt near Indianola; Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC28189  Convolvulus arvensis Richard Curtis 1973-9-28 25 Humboldt Along R. R. track near mouth of Nanning Cr. Comment
  UC1196451  Corallorhiza maculata Joseph P. Tracy 1932-7-17 10663 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC1196454  Corallorhiza mertensiana Joseph P. Tracy 1947-7-5 17826 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1196447  Corallorhiza mertensiana Joseph P. Tracy 1921-5-30 5499 Humboldt near Lawrence Creek; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC30139  Corallorhiza striata A. Montalvo, J. D. Ackerman 1974-4-14 171 Humboldt 100 m from intersection of Hwy. 299 along Chezem Rd., just W of Redwood Creek Comment
  RSA21024  Cordylanthus maritimus subsp. palustris Carl B. Wolf 1937-9-12 9278 Humboldt Humboldt Bay, 1 mile south of Arcata on road to Eureka. 3 Comment
  UC936241  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1949-8-4 18411 Humboldt Mud Springs Trinity Summit 1341 Comment
  CAS-BOT-BC101140  Corethrogyne filaginifolia D. M. Gordon 1982-9-20 s.n. Humboldt End of county road (Lanphere Rd.) on Hunt property. Lanphere-Christensen Dunes Preserve, 3 miles west of Arcata Comment
  UC1223039  Corethrogyne filaginifolia Joseph P. Tracy 1947-6-8 17705 Humboldt 5 mi e of town old Strong's District School House; Carlotta 60 Comment
  POM356151  Corethrogyne filaginifolia var. californica M. B. Dunkle 1926-8-18 4827 Humboldt Moonstone Beach Comment
  BLMAR363  Cornus glabrata Clara Sander 2003-5-29 363 Humboldt Headwaters Forest Reserve, Floating island pond 451 Comment
  HSC41339  Cornus nuttallii Brad Klipfel 1974-9-7 561 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  CAS-BOT-BC212177  Cornus sericea Joseph P. Tracy 1947-6-26 17747 Humboldt Near McKay Camp, South Fork Mountain 1676 Comment
  CAS-BOT-BC212178  Cornus sericea Joseph P. Tracy 1933-6-7 12519 Humboldt Blue Slide on Van Duzen River 91 Comment
  UC1196900  Cornus sericea subsp. sericea Joseph P. Tracy Jul 16 1930-Jul 19 1930 9009 Humboldt forest near McKay Camp (S. Fork Mt.); Northern Coast Ranges, S. Fork Mt. 1676 Comment
  UC502983  Cornus sericea subsp. sericea Joseph P. Tracy 1927-11-6 8392 Humboldt along Yager Creek Carlotta; Northern Coast Ranges 60 Comment
  HSC26855  Coronopus didymus Thomas W. Nelson 1971-12-5 315 Humboldt 3300 block of D St. in Eureka Comment
  UC1197937  Corylus californica Joseph P. Tracy 1946-8-25 17640 Humboldt Table Bluff, foot of N slope along Hookton Road 9 Comment
  CAS-BOT-BC172850  Corylus cornuta subsp. californica Joseph P. Tracy 1946-8-25 17639 Humboldt Table Bluff, windswept N slopes, along Hookton Road 9 Comment
  CAS-BOT-BC180303  Corylus cornuta subsp. californica Joseph P. Tracy 1949-8-11 18486 Humboldt near Snow Camp (1 1/2 mi SE) 1341 Comment
  CAS-BOT-BC180313  Corylus cornuta subsp. californica L. B. Kildale 1926-9-5 2638 Humboldt Lasseck's Peaks - on trail between Canal Goat Camp and Red Peak 1676 Comment
  HSC104408  Corylus cornuta subsp. californica Adam N. Canter 2017-4-1 5 Humboldt Eureka, Fort Humboldt State Historic Park, west-facing bluffs along east side of Hwy. 101 Comment
  CHSC97985  Cotula coronopifolia C. DeLay 2002-5-11 12 Humboldt V St. Humboldt Bay Wildlife Refuge. 5 Comment
  UC198581  Crassula aquatica Joseph P. Tracy 1916-5-31 4705 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC291482  Crepis capillaris M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  UC1199457  Crepis capillaris Joseph P. Tracy 1948-8-22 18104 Humboldt flat by old Strong's District School House (5 mi e of town); Carlotta 60 Comment
  RSA15572  Crepis capillaris C. B. Wolf 1927-8-28 1188 Humboldt Eureka Bay on Arcata road Comment
  UC1199458  Crepis capillaris Ralph Ferguson 1948-5-4 Humboldt Parkside Tract Eureka 60 Comment
  HSC98096  Crepis pleurocarpa Cara Witte 2007-6-20 310 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  SEINET2145774 Image available Crepis pleurocarpa Unknown 1933-7-25 12826 Humboldt Horse Mountain 1430 Comment
  UCD138688  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt northwest corner of overpass of Hwy 101 freeway to Garberville, 1 mile south of Fields Landing. 1524 Comment
  HSC7973  Croton setiger H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  UC1239661  Cryptantha affinis Joseph P. Tracy 1937-7-25 15546 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC1239664  Cryptantha leiocarpa Joseph P. Tracy 1904-7-4 2112 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC57212  Cryptantha simulans Griswold, Butler 1979-7-12 7247 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC98017  Cuscuta californica var. californica Cara Witte 2007-7-5 422 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  UCSB24349  Cuscuta subinclusa Tracy, Joseph 1924-7-20 Humboldt Brannan Mt.; on Willow Cr. Road 1005 Comment
  HSC37074  Cymopterus terebinthinus var. californicus R. Sutherland 1976-4-24 Humboldt Garberville Triangle 518 Comment
  CAS-BOT-BC190223  Cynodon dactylon Henry M. Pollard 1948-7-18 s.n. Humboldt Orleans. Comment
  HSC3641  Cynoglossum grande A. H. Teshima 1963-3-10 5 Humboldt Moonstone Beach area Comment
  UC176042  Cynoglossum grande Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3615 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC1222257  Cynoglossum occidentale Joseph P. Tracy 1948-8-15 18121 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit Rd. high point); Trinity Summit 1524 Comment
  UC1222258  Cynoglossum occidentale Joseph P. Tracy 1949-6-6 18302 Humboldt 6 mi. n.e. Hawkins Bar (Happy Camp Mt., Trinity Summit Rd.); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  CHSC83244  Cynosurus cristatus Ray Evens 1956-7-19 Humboldt 4.5 miles northwest of Petrolia. Comment
  RSA44473  Cynosurus echinatus Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans. Comment
  HSC75505  Cyperus eragrostis Melinda F. Denton 1981-7-3 4253 Humboldt On Hwy. 36, 32 mi. E of Alton, 17 mi. W of Van Duzen River Rd. 610 Comment
  UC1103632  Cyperus eragrostis Joseph P. Tracy 1934-7-14 13399 Humboldt along Mad R. near Blue Lake; Mad R. 15 Comment
  SEINET3926894  Dactylis glomerata Thomas Nelson, Jane P. Nelson 1976-7-26 3022 Humboldt Trinity-Humboldt Co. line. growing on road cut of 1S07 on serpentine west of Black Lassic.; 0 1615 Comment
  SBBG34665  Dactylis glomerata T. L. Secrest 1948-6-29 Humboldt southern Humboldt County [no specific locality] Comment
  HSC102143  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1049 Humboldt Patterson Meadows 1566 Comment
  HSC24617  Danthonia californica William J. Ferlatte, B. D. Rogers 1966-6-15 2108 Humboldt Larabee Valley 762 Comment
  UCD60486  Danthonia californica R. Tofsrud 1947-6-29 s.n. Humboldt About 3 mi. N of Harris on road to Alder Point. Comment
  UCD60985  Danthonia californica E. B. Copeland 1930-6-5 Humboldt Scotia. Comment
  CHSC35545  Danthonia californica var. californica James Payne Smith Jr. 1977-7-3 9231 Humboldt Road to Fish Lake (Forest Service Road 13N01), 3.5 miles from its junction with State Route 36. 487 Comment
  RSA293102  Danthonia californica var. californica J. P. Smith 1977-7-3 9231 Humboldt Road to Fish lake (Forest Service Road 13N01), 3.5 miles from its junction with State Route 36. 488 Comment
  HSC39185  Darmera peltata D. E. Anderson, J. P. Smith 1971-6-28 - 1215 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC673050  Daucus carota Joseph P. Tracy 1940-10-17 16761 Humboldt near Dyerville (South Fork Station); South Fork Station 48 Comment
  UC1196316  Delphinium Joseph P. Tracy 1933-5-20 12270 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  SEINET5208465  Delphinium decorum Unknown 1930-5-25 0789 Humboldt Laribee Valley, on open hillsides Comment
  UC467718  Delphinium decorum subsp. tracyi Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5802 B Humboldt Trinity Summit Comment
  UC249648  Delphinium decorum subsp. tracyi Joseph P. Tracy 1922-6-5 6082 Humboldt slopes at head of creek Northern Coast Ranges, South Yager Creek 762 Comment
  HSC56322  Delphinium glaucum Overton, Butler 1979-8-2 12662 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC95728  Delphinium nudicaule Steven Lee 2004-4-26 30 Humboldt Horse Mtn., 4 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  RSA46895  Delphinium nudicaule Doris K. Kildale 1927-5-15 3164 Humboldt Petrolia Comment
  HSC89622  Delphinium nudicaule Pat Daly, Rudy Galindo 1988-3-12 5 Humboldt S Fork Trail of Trinity River, trailhead 12.4 mi. up S Fork Rd. from Hwy. 299 457 Comment
  HSC95789  Delphinium nudicaule Kevin Thomas 2004-3-28 9 Humboldt Horse Linto Creek Campground Comment
  JEPS8447  Delphinium nuttallianum Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3411 Humboldt 0.5 mi w Snow Camp (ridge between Mad River and Redwood Creek); Bald Mountain ridge 1432 Comment
  HSC46069  Delphinium trolliifolium G. N. Bos 1965-5-15 276 Humboldt Berry Summit near Hwy. 299 793 Comment
  UC13983  Delphinium trolliifolium Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  RSA10043  Deschampsia beringensis Joseph P. Tracy 1927-7-16 8257 Humboldt Around Humboldt Bay. Mouth of Elk River. 6 Comment
  HSC9588  Deschampsia cespitosa J. A. Waller 1965-5-16 46 Humboldt Humboldt Bay. Comment
  UC187264  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1904-7-31 2129 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC72638  Deschampsia elongata J. P. Smith 1977-7-3 9245 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  UC76979  Deschampsia elongata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5509 Humboldt near Camp Grant Comment
Read comments
May 17 2012
  UC1196309  Dicentra formosa Joseph P. Tracy 1921-3-13 5422 Humboldt Alton; Northern Coast Region 30 Comment
  BLMAR618  Dicentra formosa Jennifer Wheeler 2011-5-23 618 Humboldt Lacks Creek, Bair Rd. about one mile from Hwy. 299 426 Comment
  CDA24607  Dicentra formosa C. Sinkiewicz 2002-4-17 Humboldt McKinnleyville, Dows Prairie. Comment
  HSC34639  Dicentra formosa David M. Brazelton 1975-4-10 6 Humboldt 150 yards SW of junction of Fieldbrook Rd. and Evans Rd. Comment
  RSA273432  Dicentra formosa subsp. formosa M. A. Baker 1977-4-23 176 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC72685  Dicentra formosa subsp. oregana J. P. Smith 1977-7-3 9267 Humboldt Onion Lake Comment
  HSC99853  Dicentra formosa subsp. oregana Gail Newton 1980-6-17 203 Humboldt Near Onion Mtn. 217 Comment
  RSA10046  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1927-8-7 8313 Humboldt Trinity River Valley, at Willow Creek Comment
  JEPS64179  Dichelostemma capitatum Lincoln Constance 1934-6-19 914 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  UC1198171  Dichelostemma capitatum Joseph P. Tracy 1947-5-10 17685 Humboldt Miranda, along the South Fork of Eel River South Fork of Eel River 121 Comment
  HSC48032  Dichelostemma capitatum subsp. capitatum Brad Klipfel 1974-5-27 406 Humboldt Horse Mtn. Comment
  HSC44871  Dichelostemma capitatum subsp. capitatum J. P. Smith, J. O. Sawyer 1973-5-12 6681 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC12535  Dichelostemma congestum J. Allen DeCou 1899-1 Humboldt Willow Creek Comment
  HSC44758  Dichelostemma congestum Maralyn O'Meara 1972-6-8 81 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC3033  Dichelostemma ida-maia H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC74700  Dichelostemma ida-maia Gail Newton 1981-8-5 2371 Humboldt Near Bug Creek, E Fork 914 Comment
  SEINET10872226  Dichelostemma ida-maia Mary Merello 1993-6-19 Merello 662 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  CAS-BOT-BC501026  Dichelostemma ida-maia H. D. Ripley; R. C. Barneby 1945-6-16 6810 Humboldt S. of Weott 91 Comment
  HSC48614  Dichelostemma ida-maia Mark Flippo 1978-5-22 67 Humboldt Big Hill Rd. Comment
  UC15034  Dichelostemma multiflorum P. E. Goddard 1901-7 41 Humboldt Hupa Comment
  UC1198174  Dichelostemma multiflorum Joseph P. Tracy 1939-4-29 16240 Humboldt mouth of Slate Creek Klamath River 121 Comment
  HSC20641  Digitalis purpurea F. Morrell 1949-5-17 27 Humboldt Blue Lake Comment
  JEPS11291  Digitalis purpurea Lincoln Constance 1934-5-26 682 Humboldt s end Dyerville Bridge (bar of South Fork of Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  SD114041  Digitalis purpurea D. F. Howe 1961-8-1 3105 Humboldt 6.0 miles north of Trinidad on Highway 101. Comment
  SD92990  Digitalis purpurea Walter Bertsch 1953-7-30 227 Humboldt Redwood forest along highway 101 near Dyerville. 60 Comment
  UCD63953  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. 121 Comment
  POM89789  Digitaria sanguinalis Joseph P. Tracy 1919-9-13 5195 Humboldt Trinity River Valley. Near Willow Creek. 152 Comment
  UCD64093  Digitaria sanguinalis Joseph P. Tracy 1942-9-13 17316 Humboldt Eureka. 30 Comment
  CAS-BOT-BC150344  Diplacus aurantiacus C. C. Harris; S. K. Harris 1936-6-9 s.n. Humboldt Above Carlotta 60 Comment
  CAS-BOT-BC150352  Diplacus aurantiacus Francis W. Pennell 1940-7-8 26109 Humboldt South of Trinidad, Route 101 30 Comment
  RSA520552  Disporum hookeri var. hookeri Michael A. Hanson 1990-5-22 83 Humboldt Between Weitchpec and Orleans on Bluff Creek Road, 4.6 miles (7.4) west of highway 96. Comment
  CHSC68508  Disporum smithii Vernon H. Oswald 1997-4-10 8325 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  RSA33404  Disporum smithii Doris K. Kildale 1927-3-20 2927 Humboldt Phillipsville Comment
  IRVC2496  Disporum smithii R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  UC519703  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of the Eel River South Fork Eel River; Dyerville, South Fork Eel River Comment
  UC666968  Disporum smithii Joseph P. Tracy 1933-5-21 12209 Humboldt McClellan Mountain 670 Comment
  HSC93509  Distichlis spicata Gordon Leppig, Sylvia Leppig 1998-9-17 1101 Humboldt Arcata Marsh and Wildlife Sanctuary, W of railroad trestle. Comment
  HSC9633  Distichlis spicata D. J. McVean 1965-5-22 83 Humboldt Along slough just W of Jackson Rd., 1/4 mi. N of Samoa Rd. Comment
  UC595125  Distichlis spicata David D. Keck 1938-8-5 4769 Humboldt Big Lagoon Comment
  UC602535  Downingia elegans Joseph P. Tracy 1923-6-20 6339 Humboldt Miranda 121 Comment
  RSA181633  Downingia elegans Doris K. Niles 1940-7-20 2 Humboldt Summit of Friday Ridge road, Grouse Mt. 1829 Comment
  RSA0011669  Drosera rotundifolia Patricia Wilder 1968-8-21 4380 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  RSA0011675  Drosera rotundifolia Norman Dennis 1965-6-30 140 Humboldt Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  HSC23414  Dryopteris expansa Mary Spindler, Roger Bucholtz 1971-11-18 126 Humboldt H.S.C. Campus SW side of Home Ec. under wooden stairway Comment
  UC1198834  Dudleya farinosa J. P. Tracy 1907-7-4 2581 Humboldt betw Little River and Trinidad 30 Comment
  UC1103659  Eleocharis bella Joseph P. Tracy 1931-9-7 9651 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC69758  Eleocharis macrostachya Thomas W. Nelson 1977-9-22 3749 Humboldt E side of SR 101 just N of the Eureka Airport Comment
  UC213331  Eleocharis macrostachya Joseph P. Tracy 1920-8-29 5396 Humboldt Little River, borders of lagoon Northern Coast Ranges 6 Comment
  CDA38999  Eleocharis pachycarpa Gordon Leppig 1997-6-19 449 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  POM126088  Eleocharis parvula Joseph P. Tracy 1924-8-3 6744 Humboldt Stone Lagoon Comment
  UC1103662  Eleocharis parvula Joseph P. Tracy 1921-8-7 5868 Humboldt Stone Lagoon 3 Comment
  UC526784  Elymus X hansenii Joseph P. Tracy Jul 16 1930-Jul 19 1930 9054 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC175632  Elymus elymoides subsp. elymoides Joseph P. Tracy 1912-7-31 3933 Humboldt Buck Mountain Northern Coast Ranges (summit) 1676 Comment
  HSC58637  Elymus elymoides var. elymoides G. L. Clifton, Griswold 1979-7-31 11573 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  UC38194  Elymus glaucus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5661 a Humboldt Hoopa Mt. Comment
  UCD62371  Elymus glaucus subsp. glaucus A. H. Shunk 1923-7-12 Humboldt Briceland. Comment
  HSC98130  Elymus hispidus Cara Witte 2007-6-28 387 Humboldt Forest Service Road 5N10. 1293 Comment
  UC1103131  Elymus multisetus Joseph P. Tracy 1912-8-3 3962 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1103292  Elytrigia repens Joseph P. Tracy 1937-7-17 15434 Humboldt Eureka 60 Comment
  RSA43871  Epilobium angustifolium var. macrophyllum H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  UC146136  Epilobium brachycarpum Joseph P. Tracy 1909-7-31 3040 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC562421  Epilobium brachycarpum Joseph P. Tracy 1933-8-6 12942 Humboldt French Camp Ridge 1066 Comment
  SBBG60140  Epilobium canum subsp. latifolium L. Rowntree 1931-7-21 Humboldt Mattole River 2 mi from Petrolia Comment
  CDA30723  Epilobium ciliatum M. K. Beyers, I. Shepardson 2009-9-13 253 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC53857  Epilobium ciliatum Griswold, Butler 1979-7-10 6328 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC43235  Epilobium ciliatum subsp. ciliatum R. Sutherland 1976-8-19 3 .19876 Humboldt 259 Comment
  POM32458  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-9-5 4768 Humboldt North Coast Ranges: South Fork of Eel River 4 miles above the mouth 61 Comment
  UC562504  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1933-8-6 12941 Humboldt along stream French Camp Ridge 1066 Comment
  HSC103266  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-11 Humboldt Six Rivers National Forest, Trinity Mountain Quad, Lower Trinity District, Crogan Hole. 1616 Comment
  HSC98622  Epilobium ciliatum subsp. glandulosum Cara Witte 2007-7-25 584 Humboldt Forest Service Road 6N08. Friday Ridge Road. 1/4 mile east of intersection with 5N10. 1237 Comment
  SEINET9067301 Image available Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-1 24050 Humboldt Spruce Cove, Trinidad 64 Comment
  UC1222846  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1950-8-7 19272 Humboldt 2 mi e Box Camp (on trail between Box Camp and Croghan Hole); Trinity Summit Comment
  HSC67186  Epilobium minutum Thomas W. Nelson, James Nelson 1980-6-10 5422 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  HSC70924  Epilobium minutum R. York 1980-5-18 574 Humboldt Near Black Mtn 792 Comment
  HSC76622  Epilobium minutum Denis Kearns 1981-7-22 322 Humboldt Near Whiteys Peak. 1487 Comment
  HSC78650  Epilobium minutum D. K. Imper 1982-7-13 1484 Humboldt Near Chaparral Mtn. 1386 Comment
  HSC75459  Epilobium oregonense J. O. Sawyer 1980-7-18 3586 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  POM134801  Epilobium septentrionale Carl Duncan 1920-9-22 s.n. Humboldt Hoopa Indian Reservation, Hoopa Valley Comment
  HSC32543  Epilobium torreyi Thomas W. Nelson 1973-8-19 1117 Humboldt McKeown Ranch N of Dinsmore, floodplain of Mad River Comment
  UC902051  Epipactis gigantea Joseph P. Tracy 1949-7-7 18335 Humboldt Blue Slide Van Duzen River 91 Comment
  CAS-BOT-BC57160  Equisetum hyemale subsp. affine Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  CAS-BOT-BC57161  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  UC503072  Equisetum hyemale subsp. affine Joseph P. Tracy 1928-6-17 8456 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges 152 Comment
  CHSC7104  Equisetum telmateia K. Cox 1969-4-1 6 Humboldt Patrick's Point St. Pk. At foot of Agate Beach trail. 1 Comment
  UC526937  Equisetum telmateia subsp. braunii Joseph P. Tracy 1934-3-17 13163 Humboldt Trinidad 3 Comment
  RSA23654  Equisetum telmateia var. braunii C. B. Wolf 1939-7-6 9515 Humboldt Along Larabee Creek, 5.8 mi below Blocksburg on road to Bridgeville. Comment
  SEINET200658 Image available Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Damp sand bar along river Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC284096  Eragrostis pectinacea var. pectinacea Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  RSA20844  Erechtites glomeratus C. B. Wolf 1937-6-18 8884 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  CDA5472  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  SEINET5708560 Image available Erigeron aliceae Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6106 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the leafhand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7N04), travel 1.5 miles to another fork; continue on 7N04 (the left fork) for 7.4 miles. At this point, take 7N04N, the road to Groves Prairie. The collections site is a short distance up this road. Comment
  SEINET11855650  Erigeron decumbens var. robustior J. P. Tracy 1942-7-4 17370 Humboldt Buck Mountain, lower foothills of its NW slope 762 Comment
  UC581723  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge Comment
  JEPS21932  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road (near summit of ridge) 762 Comment
  UC175187  Erigeron foliosus var. mendocinus Joseph P. Tracy 1913-6-10 4082 Humboldt near Grizzly Gulch (bluffs along Van Duzen River); Northern Coast Ranges, Van Duzen River 152 Comment
  UC1199441  Erigeron glaucus Joseph P. Tracy 1913-9-21 4409 Humboldt dunes of ocean beach at Humboldt Bay Comment
  HSC56930  Erigeron inornatus var. inornatus G. L. Clifton, Butler 1979-7-26 9359 Humboldt Near Salmon Mtn., close to the town of Forks of the Salmon 1935 Comment
  HSC58349  Erigeron inornatus var. inornatus Overton, Butler 1979-8-2 12683 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC104433  Erigeron maniopotamicus Bianca Hayashi 2013-6-11 Humboldt Twin Lakes area, north of Board Camp Mountain 1280 Comment
  CAS-BOT-BC214581  Erigeron philadelphicus Volney Rattan No date on label s.n. Humboldt Mad River Comment
  UC153939  Erigeron philadelphicus var. philadelphicus J. P. Tracy 1910-10-1 3162 Humboldt immediate vicinity Eureka 0 Comment
  RSA134150  Eriodictyon californicum Percy C. Everett, E. K. Balls 1959-10-24 23953 Humboldt 2.8 miles southwest from Siskiyou-Humboldt Co. line, Somesbar to Orleans. 198 Comment
  UC672919  Eriogonum compositum var. compositum Joseph P. Tracy 1932-7-12 10460 Humboldt head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  CAS-BOT-BC259159  Eriogonum latifolium Dr. A. Kellogg; W. G. W. Harford 1868-1-1 881 Humboldt Shelter Cove Comment
  HSC46971  Eriogonum latifolium J. P. Smith, Thomas W. Nelson 1977-6-30 9209 Humboldt Samoa Peninsula just E of the drag strip. Comment
  CAS-BOT-BC259543  Eriogonum luteolum var. luteolum Henry M. Pollard 1943-1-1 s.n. Humboldt Orleans Comment
  CAS-BOT-BC261491  Eriogonum nudum var. nudum Carl B. Wolf 1927-8-30 1233 Humboldt 2 mi. so. of Petrolia on Matole [Mattole] River near point where road crosses river Comment
  JEPS56635  Eriogonum nudum var. nudum Lincoln Constance 1934-5-24 626 Humboldt s slope of Lower Look Prairie South Fork Eel River, Bull Creek Region, Lower Look Prairie 121 Comment
  UC6392  Eriogonum nudum var. oblongifolium Harley P. Chandler June, 1901 1442 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  CAS-BOT-BC269863  Eriogonum nudum var. pubiflorum Carl D. Duncan 1920-9-21 336 Humboldt Hoopa Comment
  CAS-BOT-BC253053  Eriogonum roseum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  UC1198155  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1917-9-2 4841 Humboldt Grouse Mountain Northern Coast Ranges, Grouse Mountain 1524 Comment
  UC412902  Eriogonum umbellatum var. nelsoniorum P. E. Goddard 1906-6 657 Humboldt Lasseck Pk. Comment
  HSC55177  Eriogonum umbellatum var. stellatum Gilbert Muth 1979-8-1 12182 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC40042  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2895 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC180202  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1914-7-5 4572 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC673208  Eriophyllum lanatum var. achilleoides Lincoln Constance and Reed C. Rollins 1942-5-12 2886 Humboldt 6 mi ne Weitchpec; Klamath-Siskiyou Region, Mouth of Bluff Creek 152 Comment
  CAS-BOT-BC301016  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1936-6-10 14929 Humboldt South Fork of Trinity River: mountain slopes west of its mouth 457 Comment
  HSC74470  Eriophyllum lanatum var. grandiflorum Gail Newton 1980-7-23 1724 Humboldt Near Packsaddle Ridge 1463 Comment
  UC1173658  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1939-4-29 16241 Humboldt at mouth of Slate Creek (along Klamath River); Klamath River, Slate Creek 121 Comment
  HSC37916  Erodium cicutarium Peter Sorensen 1976-5-15 Humboldt Woodley Island Comment
  HSC26363  Erodium cicutarium T. O. Osborne 1970-5-24 87 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  UC642240  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1938-8-20 16125 Humboldt Alton 30 Comment
  UC1222612  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1951-6-21 19528 Humboldt in bed of former Goose Lake (back of Everett Beck house on ranch, Hydesville); Hydesville, , Everett Beck ranch house Comment
  HSC82395  Erysimum capitatum Thomas W. Nelson 1979-7-11 5008 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC673190  Erysimum capitatum Lincoln Constance and Reed C. Rollins 1942-5-12 2879 Humboldt 1 mi s Bluff Creek (5 mi ne of Weitchpec, road-cut); Klamath-Siskiyou region, Klamath River 121 Comment
  HSC6772  Erysimum menziesii Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  RSA0008582  Erysimum menziesii Jennifer Wheeler 2010-5-11 573 Humboldt Samoa Dunes Endangered Plant Protection Area. 0 Comment
  SEINET13754736 Image available Erythranthe nasuta Joseph P. Tracy 1923-1 6218 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC133258  Erythronium L. R. Abrams 1918-6-15 7099 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC44353  Erythronium californicum Brad Klipfel 1974-5-8 319 Humboldt Horse Mountain Comment
  CAS-BOT-BC504310  Erythronium californicum Michalski; Raum; Hopson 1987-4-1 87 Humboldt Larabee Buttes Comment
  HSC15487  Erythronium citrinum var. citrinum R. A. Rasp 1964-4-5 29 Humboldt 7 mi. past Hoopa on Willow Creek Rd. Comment
  CAS-BOT-BC502714  Erythronium grandiflorum Joseph P. Tracy 1933-7-16 12774 Humboldt Opening in Fir forest near McKay Camp, South Fork Mtn. 1676 Comment
  HSC48836  Erythronium grandiflorum subsp. grandiflorum Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 29 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UCSB28100  Erythronium oregonum Phelps, M. 1972-3-19 Humboldt 7.5 mi. along Salmon Creek Rd. from Hwy. 101, 100 yds. from road, Miranda 304 Comment
  HSC104325  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 23 Humboldt Kneeland 854 Comment
  UC668058  Eschscholzia californica Joseph P. Tracy 1938-6-17 15956 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  CAS-BOT-BC310453  Eucephalus ledophyllus var. covillei Doris K. Kildale 1925-8-17 1214 Humboldt (Near to) Trinity Summit 1917 Comment
  UC562613  Euchiton gymnocephalus Joseph P. Tracy 1936-3-22 14784 Humboldt 4 mi se Korbel (near Angels Ranch); North Coast Ranges 304 Comment
  UC562616  Euchiton gymnocephalus Joseph P. Tracy 1936-8-23 15164 Humboldt Carlotta 30 Comment
  CAS-BOT-BC206802  Euonymus occidentalis Doris K. Kildale 1926-7-22 2417 Humboldt Metropolitan, woods near Canyon Park Comment
  UC1198983  Euphorbia crenulata Joseph P. Tracy 1935-5-25 13879 Humboldt Fort Seward 106 Comment
  UC1198970  Euphorbia crenulata Joseph P. Tracy 1912-8-1 3960 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC36229  Euphorbia helioscopia John Rehling 1975-5-5 57 Humboldt HSU campus Comment
  CDA20172  Euphorbia oblongata P. Haggard 2003-6-24 PDR 069699 Humboldt Northwestern California; Horse Mtn. 0 Comment
  JEPS52427  Euphorbia spathulata Joseph P. Tracy 1926-5-2 7431 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  JEPS52428  Euphorbia spathulata Joseph P. Tracy 1926-5-9 7455 Humboldt near Bridgeville; Northern Coast Ranges 762 Comment
  UC249850  Eurybia radulina Joseph P. Tracy 1924-8-10 6813 Humboldt at Blue Slide, on Van Duzen River Van Duzen River 91 Comment
  UC1199326  Euthamia occidentalis Joseph P. Tracy 1939-9-24 16501 Humboldt near Blue Lake (along Mad River) 15 Comment
  UC535703  Euthamia occidentalis Eleanor Armstrong 1934-8-16 1150 Humboldt Richardson Grove 121 Comment
  OBI5245  Fallopia sachalinensis T. C. Fuller 1968-7-30 17447 Humboldt NE side of Hwy 101 fwy overpass, Fields landing Comment
  CAS-BOT-BC278180  Festuca W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  CAS-BOT-BC278813  Festuca occidentalis J. P. Tracy 1900-5-22 796 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC75355  Festuca occidentalis J. O. Sawyer, M. A. Ericksen 1980-7-18 3644 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  UCD66125  Festuca occidentalis P. B. Kennedy 1923-8-23 Humboldt Near Orleans, near top of grade - Red Bluff to Arcata. Comment
  CAS-BOT-BC278967  Festuca rubra H. S. Yates 1936-6-17 5697 Humboldt Lower northwest slope of Buck Mountain 792 Comment
  CAS-BOT-BC278970  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  RSA126629  Festuca rubra H. S. Yates 1936-6-16 5670 Humboldt 1 mile NE of Samoa. 2 Comment
  SEINET200340 Image available Festuca subulata Joseph P. Tracy 1937-7-25 15541 Humboldt Head of Little Hors-Linto Creek [Horse Linto Creek] 1372 Comment
  UC188848  Festuca subuliflora J. Burtt Davy and W. C. Blasdale 1899-6-13 5494 Humboldt Camp Grant North Coast Ranges Comment
  UC53425  Festuca subuliflora Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5407 Humboldt Hubbards Station Comment
  UCD66490  Festuca subuliflora R. Tofsrud 1949-7-1 Humboldt On road from Scotia to Capetown. Comment
  UC249608  Foeniculum vulgare Joseph P. Tracy 1922-8 6104 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC453524  Fragaria chiloensis Bolemanson 1908-5-15 s.n. Humboldt Samoa Comment
  SEINET4090923  Fragaria chiloensis O. M. Clark 1932-1 702 Humboldt North Eureka. Comment
  HSC97577  Fragaria vesca Cara Witte 2007-5-29 130 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  CAS-BOT-BC437050  Fragaria vesca subsp. bracteata M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale 8 miles norht of Garberville Comment
  CAS-BOT-BC59965  Frangula purshiana A. A. Heller 1923-7-9 13775 Humboldt About 5 mi. e. of Arcata on the road to Blue Lake. Comment
  HSC12313  Frangula purshiana Wendell Wood 1970-9-22 296 Humboldt McKinleyville, E end of Chateau Way 107 Comment
  UC54925  Fraxinus latifolia Mrs. M. H. Manning 1902-4 Humboldt near Hupa Comment
  HSC15539  Fritillaria affinis D. E. Anderson 1962-5-1 2189 Humboldt Junction of Redwood Creek Rd. and rd. to Hoopa Comment
  HSC15546  Fritillaria affinis F. B. Plett 1963-5-15 49 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  HSC36507  Fritillaria recurva Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1884 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC16383  Fuchsia magellanica N. D. Dennis 1965-5-5 48 Humboldt 2 mi. N of Trinidad, 1 mi. E of College Cove Comment
  HSC72984  Galium ambiguum subsp. siskiyouense M. A. Baker 1980-7-11 2773 Humboldt Near Red Mtn. 1341 Comment
  UC416655  Galium aparine Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5403 Humboldt Hubbard's Station North Coast Ranges Comment
  PASA46  Galium bolanderi Frank W. Peirson 1932-7-7 Humboldt Willow Creek Comment
  JEPS52693  Galium bolanderi Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3853 Humboldt 1/2 mi e Dinsmores (on Hwy 36, w-facing slope) 731 Comment
  RSA47104  Galium californicum Doris K. Kildale 1925-7-19 1053 Humboldt Bridgeville. 290 Comment
  JEPS81017  Galium divaricatum Thomas W. Nelson and Jane P. Nelson 1977-9-4 3746 Humboldt in cultivated area town of Willow Creek Comment
  JEPS6697  Galium muricatum W. L. Jepson 1932-7-30 16454 Humboldt Bull Creek Comment
  RSA67142  Galium muricatum F. W. Peirson 1932-7-7 10263 Humboldt Willow Creek. A few miles above town of that name. Comment
  HSC39330  Galium parisiense J. P. Smith 1976-10-30 8994 Humboldt Mad River, E of Essex Lane exit. Comment
  HSC48772  Gamochaeta ustulata Brad Klipfel 1975-5-22 614 Humboldt Near the city of Eureka airport S of Samoa Comment
  UC166543  Gamochaeta ustulata Joseph P. Tracy 1911-7-9 3462 Humboldt near mouth of Willow Creek; North Coast Ranges, Valley of Trinity River, Willow Creek 152 Comment
  HSC41286  Garrya buxifolia Brad Klipfel 1974-7-27 480 Humboldt Horse Mtn. near Indian Butte Comment
  CAS-BOT-BC188533  Garrya elliptica Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC12588  Garrya elliptica Gary J. Stebbins 1970-2-2 5 Humboldt Along Clam Beach lagoon rd. off McKinleyville exit with Hwy. 101 Comment
  SEINET3890980  Garrya elliptica C. Davidson 2011-1-26 11826 Humboldt Moonstone Beach, north of McKinleyville.; 0 Comment
  UCSB15521  Garrya elliptica Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samosa on peninsula on western side of Humboldt Bay. Comment
  CAS-BOT-BC182167  Garrya fremontii Clarence R. Quick 1959-7-24 59 -29 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  CAS-BOT-BC182168  Garrya fremontii Joseph P. Tracy 1932-3-6 9773 Humboldt Trinity River Valley at Willow Creek 152 Comment
  CAS-BOT-BC182170  Garrya fremontii Doris K. Kildale 1926-3-21 1588 Humboldt McDowell Butte, Kneeland Prairie 914 Comment
  UC1196893  Garrya fremontii Joseph P. Tracy 1947-7-9 17840 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC282614  Gastridium phleoides Harley P. Chandler 1901-6-1 1506 Humboldt Klamath River 426 Comment
  UC50488  Gastridium ventricosum J. Burtt Davy 1899-6-26 5868 Humboldt Hoopa Valley; North Coast Ranges, Hoopa Valley Comment
  HSC59858  Gaultheria ovatifolia M. A. Baker 1979-7-6 1011 Humboldt .6 k W of FS rd. 15N01 on rd. 12N16, toward Bald Mtn. Comment
  HSC59210  Gaultheria shallon Terry Roth 1979-5-29 103 Humboldt Arcata, entrance to the Canyon Dorms of Humboldt State University Comment
  HSC7806  Gaultheria shallon A. E. Inman 1962-5-25 Humboldt Mad River, Lindsay Creek jct., N bank Comment
  HSC98781  Gaultheria shallon Cara Witte 2008-6-27 771 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  POM285360  Gaultheria shallon Lyman Benson 1928-7-10 583 Humboldt Clam Beach, Trinidad. 8 Comment
  UC527560  Gaultheria shallon C. B. Wolf 1931-8-29 Humboldt near summit of Orick Hill, on road to Weitchpec Orick Hill 304 Comment
  UC562735  Gaultheria shallon Joseph P. Tracy 1936-6-28 15017 Humboldt Bald Mountain at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  HSC55048  Gayophytum diffusum subsp. parviflorum Gilbert Muth 1979-7-31 11551 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  JEPS27600  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13046 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1196966  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-7-26 12914 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CDA4089  Genista monspessulana T. C. Fuller 1958-6-17 570 -58 Humboldt Lower Mattole. 0 Comment
  RSA13517  Gentiana newberryi H. E. Parks 1931-07 1052 Humboldt Bishop Pine Lodge, Trinidad. 76 Comment
  HSC96490  Gentiana sceptrum Gordon Leppig 1997-8-3 635 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  UCSB26680  Gentiana sceptrum Havlik, Neil 1968-8-21 Humboldt south end of Big Lagoon; north of Trinidad 1 Comment
  UC1197399  Geranium carolinianum Joseph P. Tracy 1912-7-4 3723 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC90263  Geranium dissectum Jean Hanson 1980-5-24 67 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka, W end of island, S of dike Comment
  HSC63005  Geranium retrorsum M. Dean Griswold Jr. 1979-5-30 95 Humboldt N side of Samoa Blvd. Comment
  HSC54201  Gilia capitata Gilbert Muth 1979-7-12 7238 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC24654  Gilia capitata subsp. pacifica R. E. Jones 1966-5-13 50 Humboldt Cape Mendocino Comment
  HSC95436  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1989 Humboldt E side headwaters of Brushy Creek 800 Comment
  UC176953  Gilia capitata subsp. pacifica Joseph P. Tracy 1912-6-9 3672 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC907896  Gilia capitata subsp. pacifica J. P. Tracy and H. E. Parks 1930-5-25 793 Humboldt near Bridgeville; near Bridgeville Comment
  BLMAR597  Gilia millefoliata Jennifer Wheeler 2010-5-11 597 Humboldt Samoa Peninsula, Samoa Dunes Engangered Plant Protection Area 3 Comment
  HSC23827  Gilia millefoliata Tim Baroni 1971-6-26 64 Humboldt Out the Samoa Peninsula just opposite the Georgia Pacific pulp mill Comment
  HSC34612  Gilia millefoliata A. Montalvo 1975-5-24 274 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC37942  Gilia millefoliata Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  SEINET10464629  Githopsis specularioides Tracy 1903-5-23 TRACY 1906 Humboldt Alder Point, on Eel River 152 Comment
  POM319204  Glaux maritima Patricia Wilder 1968-8-21 4412 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  CAS-BOT-BC303706  Glebionis segetum Paul F. Covel 1939-8-7 1651 Humboldt Beach at Little River Comment
  RSA246749  Glehnia littoralis subsp. leiocarpa R. F. Thorne, P. Everett 1965-8-9 35304 Humboldt Big Lagoon 3 Comment
  HSC70404  Glyceria X occidentalis M. A. Baker 1980-6-7 1836 Humboldt Near Ammon Creek. 732 Comment
  UCR196165  Glyceria declinata R. F. Thorne, Percy C. Everett 1965-8-9 35331 Humboldt Northwestern; Outer North Coastal region, Clam Beach County Park, along highway 3 Comment
  SEINET201843 Image available Glyceria elata H. K. Sharsmith, F Chisaki 1959-8-22 4756 Humboldt Happy Camp just over Trinity County line 914 Comment
  UC187282  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
  UC1145104  Glyceria grandis Joseph P. Tracy 1936-6-28 15024 Humboldt Lake Prairie; Bald Mountain 1066 Comment
  RSA15558  Gnaphalium chilense var. confertifolium C. B. Wolf 1927-8-29 1223 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  HSC49136  Gnaphalium palustre R. Becking 1979-7-29 Humboldt Van Duzen River at Cheatam Grove E of Carlotta Comment
  UCR122357  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 2001-7-8 7013 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC29720  Goodyera oblongifolia J. D. Ackerman 1973-12-17 121 Humboldt 2 mi. N of Manila Comment
  JEPS25052  Gratiola neglecta Joseph P. Tracy 1920-8-15 5378 Humboldt Klamath River Bluff Creek; Northern Coast Ranges, Klamath River at Bluff Creek 152 Comment
  CAS-BOT-BC304739  Grindelia hirsutula Joseph P. Tracy 1939-8-6 16397 Humboldt Shore of Big Lagoon 3 Comment
  HSC2098  Grindelia hirsutula H. E. Parks Aug 1941 24190 Humboldt Big Lagoon Comment
  UC1223102  Grindelia hirsutula Joseph P. Tracy 1947-11-9 17944 Humboldt s side mouth of Eel River at Camp Weeott; mouth of Eel River 3 Comment
  UC665533  Grindelia hirsutula H. E. Parks Aug 1941 24190 Humboldt Big Lagoon Comment
  UC725494  Grindelia hirsutula A. A. Heller 1923-7-7 13764 Humboldt s of Garberville (near the s fork of the Eel River) 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
  UCR48860  Grindelia stricta R. D. Goeden 1987-9-2 870902- 21 Humboldt Cape Mendocino (Cape Ridge) on bank above Mattole Rd. 183 Comment
  HSC101967  Hackelia californica M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 863 Humboldt Patterson Meadows 1566 Comment
  UC1239634  Hackelia californica Joseph P. Tracy 1937-7-29 15574 Humboldt in forest near McKay Camp; South Fork Mountain 1676 Comment
  JEPS67937  Hackelia setosa Joseph P. Tracy 1937-7-2 15397 Humboldt on Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  UC1713302  Hackelia setosa Joseph P. Tracy 1937-7-25 15547 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  HSC58066  Hastingsia alba G. L. Clifton, Griswold 1979-8-1 11944 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC205152  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-23 5287 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  CAS-BOT-BC306612  Helenium bigelovii L. B. Kildale 1930-8-10 10532 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC99088  Helenium bigelovii Cara Witte 2008-8-6 1010 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  HSC5768  Helenium bolanderi H. E. Parks, J. P. Tracy 1937-6-16 15431 Humboldt Trinidad 61 Comment
  HSC96470  Helenium bolanderi Gordon Leppig 1997-6-19 454 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC306873  Helenium bolanderi Ira L. Wiggins 1932-7-19 5891 Humboldt About 1 1/2 miles north of Trinidad Head Comment
  HSC35869  Helenium bolanderi Thomas W. Nelson, James Nelson 1975-8-5 2125 Humboldt Beside rd. to Table Bluff 1.0 mi. W of Copenhagen Rd. Comment
  JEPS35552  Helenium puberulum Lincoln Constance 1934-6-18 904 Humboldt swamp border of N. Dyerville Flat (near South Fork R.R. Sta. and P.O.); South Fork Eel River, Bull Creek Region Comment
  HSC49372  Hemitomes congestum T. Jimerson, J. Pageau 1979-6-15 581 Humboldt West of FS 11N21, on the boundary between Sections 27 and 28. 762 Comment
  HSC100436  Hemizonella parvula Carl C. Marshall Jun 1886 25 Humboldt South Fork Mtn. Comment
  CAS-BOT-BC309991  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1937-7-19 15456 Humboldt Buck Mountain, lower foothills of its northwest slope 914 Comment
  UC195064  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1916-9-5 4766 Humboldt 4 mi above the mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC127611  Hemizonia congesta subsp. tracyi Harley P. Chandler 1901-5-28 1245 Humboldt Tom Bair's North Coast Ranges, Redwood Creek 152 Comment
  HSC55976  Heracleum maximum G. L. Clifton 1979-7-31 11369 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  OBI12533  Hesperolinon micranthum Joseph P. Tracy 2011-7-6 3356 Humboldt Northern Coast Ranges. Mountain slopes along rd between Three crks and mouth of Willow crk Comment
  HSC98086  Heterocodon rariflorum Cara Witte 2007-7-11 486 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  SEINET10460663  Heterocodon rariflorum Tracy TRACY 3329 Humboldt WILLOW CR. Comment
  BLMAR190  Heteromeles arbutifolia Donald Hazlett 1994-6-7 190 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC311058  Heterotheca oregona var. oregona S. K. Harris 1938-8-24 s.n. Humboldt Eel River, near Fernbridge Comment
  UC165075  Heterotheca oregona var. rudis Joseph P. Tracy 1908-6 2924 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC64875  Heuchera micrantha J. P. Smith 1973-5-26 6825 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET200860  Heuchera micrantha J. P. Tracy 2865 Humboldt Valley of Van Duzen River opposite Buck Mt 762 Comment
  HSC57870  Hieracium albiflorum G. L. Clifton 1979-7-31 11399 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC81930  Hieracium albiflorum Thomas W. Nelson, Jane P. Nelson 1979-7-3 4947 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  SEINET11262552  Hieracium albiflorum D. E. Anderson 1972-6-20 5745 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit.; 0 Comment
  UC582415  Hieracium albiflorum Joseph P. Tracy 1932-7-12 10433 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  JEPS36565  Hieracium bolanderi Joseph P. Tracy 1926-6-20 7638 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC58147  Hieracium greenei Muth 1979-8-1 12190 Humboldt Near Red Cap Prairie 1781 Comment
  HSC74490  Hieracium greenei M. A. Baker 1980-7-24 3209 Humboldt Near Orleans Mtn. 1625 Comment
  CAS-BOT-BC316004  Hieracium nudicaule Joseph P. Tracy 1932-7-17 10659 Humboldt Corral Prairie, Trinity Summit 1584 Comment
  UC582422  Hieracium nudicaule Joseph P. Tracy Jul 16 1930-Jul 19 1930 9041 Humboldt near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  RSA156091  Hierochloe occidentalis W. A. Silveus 1938-7-9 2960 Humboldt Dyerville. Comment
  RSA34312  Hierochloe occidentalis L. Larsen 1935-4-23 s.n. Humboldt Orleans Comment
  SBBG88819  Hippuris vulgaris A. Keedy 1988-9-18 10 Humboldt Arcata Salt Water Project, Arcata Comment
  UC275351  Hirschfeldia incana Joseph P. Tracy 1924-8-4 6739 Humboldt railroad station Eureka 0 Comment
  CHSC31289  Holcus lanatus Mark Stopher 1980-7-11 116 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC10129  Holcus lanatus Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  HSC26180  Holcus lanatus J. P. Smith, Steve Selva 1970-6-14 3833 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC26446  Holcus lanatus T. O. Osborne 1970-9-16 65 Humboldt Prisoner Rock, Trinidad Bay. Comment
  HSC38838  Holcus lanatus R. Sutherland 1976-8-6 19 .6876 Humboldt Briceland. 183 Comment
  UCD84850  Holcus lanatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  SEINET10591413  Holcus lanatus Huron H. Smith 1911-1 Smith 3772 Humboldt Comment
  OBI33238  Holodiscus discolor David J. Keil 1983-7-1 17262 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  HSC10163  Hordeum brachyantherum D. J. McVean 1965-5-22 85 Humboldt In field W of Jackson Rd., 1/4 mi N of Samoa Blvd. Comment
  HSC26776  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 466 Humboldt 915 Comment
  HSC45256  Hordeum vulgare M. Alcasas 1978-5-27 109 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  UC161487  Horkelia californica Joseph P. Tracy 1911-7-12 3526 Humboldt edge of field Northern Coast Ranges, Blue Lake 60 Comment
  UC303162  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  HSC35282  Horkelia tridentata var. flavescens J. D. Ackerman 1975-6-18 472 Humboldt Big Hill Rd., 10.4 mi. E of Hoopa and Hwy. 96 Comment
  HSC36321  Hosackia crassifolia Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1900 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC44356  Hosackia crassifolia Brad Klipfel 1974-7-23 464 Humboldt Horse Mtn. Comment
  SBBG3396  Hosackia crassifolia var. crassifolia H. and M. Dearing 1933-5-21 895 Humboldt 4 mi S of Orick Comment
  SEINET957086  Hosackia rosea A. M. Ottley 1914-1 4599 Humboldt Same locality as 4576. Bald Mountian between high prairie and snow camp. 1219 Comment
  HSC64181  Hydrophyllum tenuipes J. O. Sawyer, M. A. Ericksen 1979-6-23 3394 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  JEPS1642  Hydrophyllum tenuipes W. L. Jepson 1934-5-7 16691 Humboldt Bull Creek Comment
  UC1762197  Hydrophyllum tenuipes H. E. Parks and Joseph P. Tracy 1949-6-25 11674 Humboldt Trinity Summit, meadow at Box Camp 1463 Comment
  UC562602  Hydrophyllum tenuipes Joseph P. Tracy 1924-6-1 6690 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of Kneeland Road) 457 Comment
  UC668259  Hypericum perforatum Joseph P. Tracy 1937-4-3 15244 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  RSA245281  Hypericum perforatum J. D. Ackerman, A. M. Montalvo 1973-6-17 57 Humboldt 1 mile west of Redwood Creek, along highway 299. Comment
  CAS-BOT-BC311433  Hypochaeris radicata Frank W. Peirson 1923-7-9 3934 Humboldt Auto camp on Eel River, Humboldt County State Park Comment
  HSC79460  Hypochaeris radicata Kenneth Clark 1980-6-14 676 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  HSC90684  Hypochaeris radicata Gail Newton 1982-5-1 2488 Humboldt Eureka, Elk River Wildlife Area Comment
  SEINET10879099  Hypochaeris radicata Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-8-6 Bennett 483 Humboldt Collected by Hwy. 101, N side of Orick. 30 Comment
  CAS-BOT-BC123474  Iliamna latibracteata Doris K. Kildale 1926-7-5 2312 Humboldt Prairie Creek, near Davidson's. Comment
  CAS-BOT-BC206850  Iliamna latibracteata Don Hagar 1957-6-20 L 10 Humboldt Cedar Creek Divide, 5.5 miles east of Willow Creek 1066 Comment
  SD58504  Iliamna latibracteata Joseph P. Tracy 1949-9-1 18525 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  SEINET3225680 Image available Iliamna latibracteata Joseph P. Tracy 1926-6-12 7585 Humboldt Prairie Creek. 150 Comment
  UCD126379  Iliamna latibracteata D. C. Hagar 1957-6-20 L 10 Humboldt Cedar Creek Divide, 5.5 miles east of Willow Creek. 1066 Comment
  UC1173718 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
Read comments
Feb 27 2012
  UC1103806  Ionopsidium acaule Joseph P. Tracy 1920-3-3 5313 Humboldt Eureka, around Humboldt Bay, (J.P.T's garden) Eureka; Northern Coast Region, Eureka 30 Comment
  UC909150  Ipomopsis aggregata Joseph P. Tracy 1932-7-12 10440 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA49981  Iris chrysophylla E. L. Nelson 1949-1 s.n. Humboldt Originally collected at Weitchpec, CA on hot dry open slopes along road. Comment
  UC1103024  Iris douglasiana Joseph P. Tracy 1931-6-7 9574 Humboldt Eureka 30 Comment
  HSC13860  Iris douglasiana M. N. Gold 1966-5-22 42 Humboldt 1 mi. E of Hwy. 101 on Myrtle Ave., Eureka Comment
  UC14921  Iris douglasiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5441 Humboldt Hubbard's Station to Elk Prairie; North Coast Ranges Comment
  UCD170782  Iris douglasiana Gordon Leppig 1998-5-7 752 Humboldt Quarry Rd. off Jacoby Creek. Road cut 50 m east of log pond. 97 Comment
  BLMAR542  Iris purdyi Jennifer Wheeler 2009-6-23 542 Humboldt King range, On Paradise Ridge road Comment
  HSC48416  Iris tenax subsp. klamathensis J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9925 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  HSC66476  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-25 920 Humboldt On Eyesee Rd., 0.3 mi. N of Hwy. 96, Orleans Comment
  UC1174759  Iris tenax subsp. klamathensis L. W. Lenz 1953-5-13 18296 Humboldt along Klamath River Klamath River (Orleans); ; along Klamath River, Orleans, Humboldt Co. Comment
  HSC96255  Iris tenuissima Laurel Goldsmith, Wanda Naylor 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  UC429166  Iris tenuissima P. E. Goddard 1907-5-29 103 Humboldt Van Duzen Comment
  CDA14235  Isatis tinctoria R. Spadoni 1998-5-11 s.n. Humboldt Hwy 299 near Blue Lake. 0 Comment
  UC667940  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp 1402 Comment
  JEPS101847  Isolepis cernua Dean W. Taylor 1991-9-15 12285 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  UC198638  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt around, Salmon Creek Valley Humboldt Bay; Northern Coast Ranges, , Salmon Creek Valley 30 Comment
  UC1196176  Isopyrum stipitatum Joseph P. Tracy 1922-5-29 6068 Humboldt valley at head of South Yager Creek; Northern Coast Ranges, head of South Yager Creek 762 Comment
  CHSC56526  Jaumea carnosa L. P. Janeway 1983-9-24 705 Humboldt Sand pit next to Big Lagoon. 3 Comment
  UC1173657  Jaumea carnosa Joseph P. Tracy 1939-8-6 16399 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC110012  Juncus Henry M. Pollard 1956-10-8 s.n. Humboldt Along road above Ullathorne Riffle, ca. 3 miles southwest of Orleans. Comment
  CHSC2217  Juncus breweri M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  HSC97443  Juncus bufonius var. bufonius Ivy Watson 2008-10-5 39 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  HSC96585  Juncus bufonius var. bufonius Gordon Leppig 1998-8-23 1069 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC183775  Juncus covillei var. obtusatus Joseph P. Tracy 1912-7-31 3915 Humboldt near Buck Mountain summit; Northern Coast Ranges 1219 Comment
  UC249747  Juncus covillei var. obtusatus Joseph P. Tracy 1923-6-19 6294 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  CAS-BOT-BC110123  Juncus dudleyi Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  RSA246800  Juncus effusus subsp. pacificus Robert F. Thorne, Percy C. Everett 1965-8-5 35143 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  RSA53853  Juncus effusus subsp. pacificus Henry M. Pollard 1945-8-24 s.n. Humboldt Betw Orleans and Camp Creek Klamath River Canyon. Comment
  HSC97214  Juncus ensifolius M. Mesler 2007-7-15 781 Humboldt Near Grouse Mtn., 0.9 mi. S of NF 1 on FS Rd. 5N04 1582 Comment
  UC1152102  Juncus ensifolius Joseph P. Tracy 1927-7-17 8278 Humboldt near Three Cabins ((Mad River Trip)) Comment
  UC1103043  Juncus falcatus subsp. sitchensis Joseph P. Tracy 1925-10-18 7290 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC1196725  Juncus hesperius J. P. Tracy 1900-6-23 859 Humboldt immediate vicinity Eureka 0 Comment
  UC205904  Juncus hesperius Hy Melde 1902-6-23 Humboldt Eureka Comment
  RSA42045  Juncus hesperius Ella Dales Cantelow 1936-8-28 1634 Humboldt 4 1/2 miles SW of Dinsmore s Comment
  HSC39758  Juncus lescurii Peter Sorensen 1976-8-8 Humboldt Woodley Island Comment
  UCSC000129  Juncus lescurii H. S. Yates 1936-6-16 5655 Humboldt 0.5 miles S.W. of Samoa - Eureka 3 Comment
  POM160292  Juncus nevadensis var. inventus Joseph P. Tracy 1925-10-18 7293 Humboldt Big Lagoon. 6 Comment
  POM292636  Juncus patens Lyman Benson 1929-7-14 1742 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  SEINET11788655  Juncus xiphioides J. P. Tracy 1938-1 16171 Humboldt Lake Prairie Comment
  CAS-BOT-BC81147  Juniperus occidentalis Copeland 1903-7-4 3545 Humboldt Klamatha Comment
  HSC32539  Keckiella corymbosa Thomas W. Nelson 1973-8-19 1116 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA698922  Keckiella corymbosa J. R. Bruff 1937-8-17 938 Humboldt Richardson Grove, bed of Eel River. Comment
  HSC98709  Keckiella lemmonii Cara Witte 2007-7-27 605 Humboldt Forest Service Road 4N32. 1.5 mile N of intersection with Forest Service Road 4N32B. 1585 Comment
  UC1132146  Koeleria macrantha H. S. Yates 1936-6-17 5699 Humboldt lower nw slope Buck Mountain; South Fork Peak Quad., lower nw slope Buck Mountain Comment
  CAS-BOT-BC340409  Lactuca biennis Henry M. Pollard 1947-8-21 s.n. Humboldt Near Ferrian Ranch, Orleans region Comment
  UCD133521  Lactuca saligna Joseph P. Tracy 1947-9-14 17932 Humboldt Kneeland Prairie. 762 Comment
  UC1051585  Lactuca saligna Joseph P. Tracy 1946-8-25 17650 Humboldt 15 Comment
  HSC69891  Lagophylla ramosissima Thomas W. Nelson, Jane P. Nelson 1977-7-30 3661 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  UC169348  Lagophylla ramosissima Joseph P. Tracy 1912-8-3 3966 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS10074  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-26 10265 a Humboldt Valley of South Yager Creek 762 Comment
  UC1199133  Lasthenia californica subsp. californica Joseph P. Tracy 1925-5-17 6987 Humboldt at Berry's, Redwood Creek Northern Coast Ranges, Redwood creek 274 Comment
  CAS-BOT-BC352933  Lasthenia glaberrima Joseph P. Tracy; Harold E. Parks 1935-6-16 11274 Humboldt Buck Mt. Lower N.W. slopes 792 Comment
  SEINET8397603  Lathyrus biflorus Unknown 1980-6-10 5432 Humboldt Blocksburg Quadrangle; northeast slope of Red Mountain. 1372 Comment
  HSC15267  Lathyrus glandulosus Francis Winter 1960-4-23 Humboldt 2 mi. E of Korbel, Korbel-Maple Creek Rd. 229 Comment
  HSC103970  Lathyrus littoralis C. Reynolds 2015-4-12 32 Humboldt Along Freshwater Beach, north of the Kuchel Visitor Center 1 Comment
  HSC14742  Lathyrus littoralis D. B. Bader 1963-4-1 17 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  UC1128970  Lathyrus littoralis H. S. Yates 1936-6-16 5658 Humboldt 0.5 mi sw Samoa; Eureka Quad. 3 Comment
  HSC102562  Lathyrus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1549 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC82184  Lathyrus nevadensis var. nevadensis Thomas W. Nelson 1977-6-15 3440 Humboldt Along old road to ski area 1372 Comment
  UC303184  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1923-5-20 6241 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA60500  Lathyrus odoratus John H. Thomas 1949-6-14 909 Humboldt betw Le Perron Flat and whiteys Peak along the trail. E of town of Orleans Comment
  SEINET956147  Lathyrus polyphyllus Joseph P. Tracy 1948-1 18118 Humboldt In fir forest, 1.5 miles north of Forest Service Public Camp on Trinity Summit Road. 1280 Comment
  UC709411  Lathyrus torreyi Joseph P. Tracy 1934-7-12 13378 Humboldt Big Lagoon 152 Comment
  JEPS55299  Lathyrus torreyi W. L. Jepson 1902-6-25 1937 Humboldt near Acorn P.O. Comment
  UC1222403  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt e of Korbel (on Murphy Ridge beyond the meadows); Bald Mountain, Murphy Ridge Comment
  HSC23457  Lathyrus tracyi D. E. Anderson 1965-5-1 3561 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  RSA64950  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1949-6-8 19092 Humboldt Near Willow Creek National Forest Camp, 4 miles W of town of Willow Creek. Comment
  JEPS46259  Lathyrus vestitus var. ochropetalus W. L. Jepson 1934-5-7 16687 Humboldt Dyerville Comment
  CDA24488  Laurus nobilis Gordon Leppig 2000-4-12 1289 Humboldt Arcata, 13th and Union. Comment
  HSC39959  Layia carnosa Linda M. Barker 1976-4-13 1377 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  CAS-BOT-BC339130  Leontodon saxatilis subsp. saxatilis Alice Eastwood 1923-8-16 12340 Humboldt Carlotta Comment
  UC1199163  Lepidium densiflorum Joseph P. Tracy 1938-7-15 16066 Humboldt Mouth of Eel River 3 Comment
  JEPS53711  Lepidium nitidum Joseph P. Tracy 1918-5-5 4927 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC12701  Lepidium oblongum Volney Rattan 1879-1-1 s.n. Humboldt Unspecified. Comment
  UC1116219  Lepidium strictum Joseph P. Tracy 1948-5-31 17992 Humboldt Harris 762 Comment
  HSC17097  Leptosiphon androsaceus William J. Ferlatte, B. D. Rogers 1966-6-15 2104 Humboldt Larabee Valley 762 Comment
  HSC49924  Leptosiphon androsaceus Maralyn O'Meara 1974-7-11 538 Humboldt Kneeland, Barry Ridge Comment
  CAS-BOT-BC341822  Lessingia nemaclada James T. Vale 1979-7-26 s.n. Humboldt Elk Creek Comment
  HSC58029  Leucanthemum vulgare G. L. Clifton 1979-7-31 11844 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC101968  Lewisia nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 864 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC283514  Leymus X vancouverensis Malcom A. Nobs; S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, ca 2 miles N of Eureka Comment
  SEINET200646 Image available Leymus X vancouverensis J. P. Tracy 1930-1 8894 Humboldt Cape Mendocino; near open shore, south of point of the Cape. Comment
  RSA623752  Leymus mollis subsp. mollis T. Gertrude Williamson 1924-7-12 251 Humboldt Between Trinidad and Arcata Comment
  HSC102118  Ligusticum grayi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1022 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC21520  Lilaeopsis occidentalis R. W. Spjut 1968-10-26 215 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC76428  Lilium bolanderi Denis Kearns 1981-7-6 87 Humboldt Near Mosquito Lake 1256 Comment
  CAS-BOT-BC508397  Lilium columbianum W. R. Dudley 1899-1-1 s.n. Humboldt Big Lagoon, south of Klamath River Comment
  RSA766918  Lilium columbianum Joseph M. Keefe 1967-7-8 1876 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 2 Comment
  HSC33664  Lilium occidentale Doris K. Niles, Thomas W. Nelson 1974-6-20 Humboldt Wiggins Ranch, W of garbage dump Comment
  CAS-BOT-BC130731  Lilium pardalinum Doris K. Kildale 1925-7-4 994 Humboldt Upper Willow Creek Canyon 640 Comment
  UC30065  Lilium pardalinum Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  HSC56956  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-23 9467 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC57160  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-26 9959 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 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
  UC1197410  Limnanthes douglasii Joseph P. Tracy 1930-5-25 8710 Humboldt Larrabee Valley Northern Coast Ranges 670 Comment
  SEINET6950811  Limnanthes douglasii Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC427875  Linanthus androsaceus H. E. Parks, J. P. Tracy 1930-5-25 794 Humboldt vicinity Bridgeville; Laribee Valley Comment
  JEPS58239  Linanthus bicolor Lincoln Constance 1934-6-4 817 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region Comment
  UC60879  Linanthus bolanderi Harley P. Chandler Jun 1901 1540 Humboldt Klamath River North Coast Ranges 426 Comment
  UC1198544  Linanthus bolanderi Joseph P. Tracy 1922-5-29 6073 Humboldt near head of South Yager Creek; Northern Coast Ranges 762 Comment
  UC162582  Linanthus filipes Joseph P. Tracy 1911-7-9 3456 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  HSC59068  Linum bienne Thomas Wood 1979-5-18 193 Humboldt Arcata, adjacent and N of 2900 Janes Rd. 9 Comment
  SD51257  Linum bienne Darley F. Howe 1961-8-1 348 Humboldt 9.0 miles north of Arcata on Highway 101. Comment
  HSC59489  Listera cordata var. nephrophylla M. A. Ericksen 1979-4-28 220 Humboldt Near roadside leading to Camp Bouer, Korbel Comment
  HSC97180  Lithophragma campanulatum Benjamin Hart, Erin Lonergan 2007-6-13 10 Humboldt 1 mi. E of USFS Rd. NF1 on 5N04 1524 Comment
  CAS-BOT-BC435647  Lithophragma heterophyllum Joseph P. Tracy 1932-4-24 9827 Humboldt South fork of Eel River, between Miranda and Redway 91 Comment
  JEPS20905  Logfia filaginoides Joseph P. Tracy 1921-5-30 5489 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1199423  Logfia filaginoides Joseph P. Tracy 1927-5-8 7972 Humboldt grassy slopes facing South Fork Eel River; Philipsville 121 Comment
  UC167379  Lolium multiflorum Joseph Burtt Davy 1899-7-30 6212 Humboldt Russ Ranch Comment
  HSC40251  Lolium perenne Linda M. Barker 1976-7-5 1646 Humboldt 3 mi. W of Arcata. Comment
  SEINET200608 Image available Lolium perenne J. P. Tracy 1923-8-25 6539 Humboldt Eureka 13 Comment
  UC50698  Lolium temulentum Joseph Burtt Davy 1899-6-20 5690 Humboldt Hupa Valley Comment
  UC552790  Lolium temulentum Joseph P. Tracy 1935-5-25 13893 Humboldt Dobbyn Creek; Northern Coast Ranges, Dobbyn Creek 152 Comment
  HSC102920  Lomatium M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1047 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC642327  Lomatium dissectum var. dissectum Joseph P. Tracy 1928-6-24 8460 Humboldt Valley of S. Yager Creek 762 Comment
  HSC56077  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-31 11756 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC97412  Lomatium macrocarpum R. Spellenberg 1965-6-14 1126 Humboldt Kneeland Airport about 5 mi. S of Kneeland Comment
  HSC42875  Lomatium tracyi Barbara Kelly 1977-7-16 537 Humboldt 1/4 mi. in from Horse Mtn. Road, 1/2 mi. below turnoff to summit, near end of unused gravel road Comment
  UC183624  Lomatium utriculatum Joseph P. Tracy 1912-6-9 3671 Humboldt Northern Coast Region, Alton 30 Comment
  JEPS13668  Lonicera conjugialis W. L. Jepson July 16 - 23, 1902 2036 Humboldt Trinity Summit 2133 Comment
Read comments
Apr 8 2012
  UC441279  Lonicera conjugialis Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5861 Humboldt Trinity Summit Comment
  CAS-BOT-BC240470  Lonicera hispidula Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC79550  Lonicera hispidula var. vacillans Kenneth Clark 1980-6-14 669 Humboldt On western slope above Dead Man's Gulch. 145 Comment
  HSC31630  Lonicera involucrata var. ledebourii Glenn McGourty 1974-8-27 16 Humboldt About 1 mi. from Capetown bridge. Comment
  JEPS13667  Lonicera involucrata var. ledebourii Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad 30 Comment
  SBBG52993  Lonicera involucrata var. ledebourii J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  CAS-BOT-BC200911  Lotus Greg de Nevers 2001-4-18 12256 Humboldt Lanphere-Christenson dunes, near Arcata 9 Comment
  UC1197317  Lotus aboriginus J. P. Tracy 1902-7-4 1762 Humboldt immediate vicinity Eureka 0 Comment
  UC1561361  Lotus corniculatus Barbara Ertter with Thomas J. Delendick 1987-5-16 6914 Humboldt ca 8 mi e Arcata (Hwy 299, 9.5 mi w of Lord Ellis summit) Comment
  SEINET12170513  Lotus corniculatus C. S. Kaut 2000-1 5 Humboldt Trinidad Comment
  HSC97945  Lotus crassifolius var. crassifolius Cara Witte 2007-6-26 357 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  RSA254790  Lotus denticulatus Thomas W. Nelson, James Nelson, A. Nelson 1973-5-28 949 Humboldt McKeown Ranch north of Dinsmore. Comment
  RSA259583  Lotus denticulatus Thomas W. Nelson, Jane Nelson, James Nelson, A. Nelson 1975-6-20 1919 Humboldt Above Goat Rock ca. 2 mi. west of Bridgeville. Comment
  RSA168860  Lotus formosissimus Joseph P. Tracy 1950-6-8 18746 Humboldt Capetown, on Bear River, top of Cape Ridge. 152 Comment
  SEINET3696853 Image available Lotus formosissimus Joseph P. Tracy 1935-6-8 13941 Humboldt Santa Clara Tract, just E of Eureka Comment
  UC33503  Lotus formosissimus Chesnut and Drew 1888-7-8 Humboldt near Campbell's Comment
  HSC96219  Lotus humistratus M. Lindquist, C. Riley 2005-6-8 5 Humboldt 1.4 mi. S of Hwy. 299 on Titlow Hill Rd. 914 Comment
  SEINET12154204  Lotus micranthus J. P. Tracy 1936-1 14866 Humboldt Coast BLuffs nr Trinidad 61 Comment
  UC495717  Lotus oblongifolius var. oblongifolius Joseph P. Tracy Jul 16 1930-Jul 19 1930 8997 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1947582  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1919-5-31 5176 Humboldt near, at Lack Pond Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  SEINET12154263  Lotus purshianus L. K. Henry 1971-1 s.n. Humboldt along rt 36, 2miE of Dinsmore in Six Rivers National Forest Comment
  SEINET3560065 Image available Lotus subpinnatus Joseph P. Tracy 1906-7-4 2521 Humboldt Near Hydesville, Yager Creek 61 Comment
  HSC78972  Lotus unifoliolatus var. unifoliolatus L. P. Janeway, Paul Wilson 1984-5-25 824 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  UC162837  Lotus wrangelianus Joseph P. Tracy 1903-5-23 1901 Humboldt Alder Point, along Eel River Northern Coast Ranges, Eel River 152 Comment
  SEINET3523647 Image available Lotus yollabolliensis Joseph P. Tracy 1937-7-29 15586 Humboldt South Fork Mountain, near McKay camp 1676 Comment
  UC1223280  Lupinus adsurgens Joseph P. Tracy 1950-6-18 18849 Humboldt Wilder Ridge Comment
  HSC41303  Lupinus albicaulis Brad Klipfel 1974-7-23 463 Humboldt Horse Mtn. Comment
  CDA27379  Lupinus arboreus T. C. Fuller 1961-9-28 7052 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  CHSC19506  Lupinus arboreus Gary J. Sebbings 1970-4-18 64 Humboldt Along U.S. lol 1.0 mi north of Clam Beach exit. Comment
  HSC14777  Lupinus arboreus D. B. Bader 1963-4-1 18 Humboldt Clam Beach Lagoons, W of Hwy. 101. Along the Railroad tracks. Comment
  HSC40974  Lupinus arboreus Linda M. Barker 1976-5-13 1474 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  SBBG115192  Lupinus arboreus D. Leaberry 1992-6-20 Humboldt Clam Beach County Park, 1 mi N of Arcata Airport on Hwy 101 Comment
  POM66214  Lupinus arboreus var. arboreus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA407032  Lupinus arboreus var. arboreus E. A. Purer 1932-7-27 4150 Humboldt Samoa. Comment
  UC1197280  Lupinus bicolor Joseph P. Tracy 1908-6-9 2668 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC14787  Lupinus bicolor Allan R. Marshall 1962-5-13 14 Humboldt W side of Redwood Creek Bridge, along Hwy. 299 259 Comment
  NY15833  Lupinus constancei T. W. Nelson 1982-7-9 7079 Humboldt Blocksburg quadrangle. Sepentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1767.8 Comment
  HSC47610  Lupinus densiflorus J. P. Smith 1977-4-23 9026 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  SEINET12154561  Lupinus latifolius H. P. Chandler 1901-1 1365 Humboldt Kalmath River 152 Comment
  SEINET12154562  Lupinus latifolius J. P. Tracy 1939-1 16415 Humboldt Grouse Mtn, "Clear Lake" 1524 Comment
  HSC98892  Lupinus latifolius var. latifolius Cara Witte 2008-6-18 749 Humboldt Horse Mountain Botanical Area. Approximately 1 mile east of junction 6N36 and 6N36A. 1394 Comment
  UC169321  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-7-21 3766 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  POM92968  Lupinus latifolius var. latifolius L. R. Abrams 1922-6-25 8235 Humboldt 2 miles south of Fortuna Comment
  SEINET12154580  Lupinus lepidus H. P. Chandler 1901-1 1498 Humboldt Klamath River 427 Comment
  UC1223262  Lupinus lepidus var. lobbii Joseph P. Tracy 1933-7-25 12874 Humboldt Grouse Mountain, near Clear Lake 1524 Comment
  HSC40962  Lupinus littoralis Linda M. Barker 1976-7-5 1642 Humboldt 3 mi. W of Arcata Comment
  UCD108608  Lupinus luteolus R. Tofsrud 1951-1 s.n. Humboldt Exact location unknown. Comment
  HSC39420  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1976-6-15 2710 Humboldt Along Trail from lookout to Blocksburg 1524 Comment
  UC161546 Image available Lupinus microcarpus Joseph P. Tracy 1911-7-4 3280 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River, Willow Creek; Willow Creek, Humboldt Co. 152 Comment
  UC503007  Lupinus nanus Joseph P. Tracy 1932-5-10 9946 Humboldt Petrolia; Northern Coast Ranges, Mattole Valley 60 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
  POM276520  Lupinus rivularis Lyman D. Benson 1928-7-10 423 Humboldt Fortuna 30 Comment
  RSA170274  Lupinus sellulus var. artulus Joseph P. Tracy 1918-7-5 5021 Humboldt White Thorn Valley. 305 Comment
  SD39056  Lupinus tidestromii Edith A. Purer 1932-7-25 4142 Humboldt Near Somoa Comment
Read comments
Apr 4 2020
  HSC76441  Lupinus tracyi D. K. Imper 1981-8-12 902 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  RSA165867  Lupinus variicolor Philip A. Munz 1963-6-19 24528 Humboldt Patrick's Point. 30 Comment
  HSC100503  Luzula Carl C. Marshall May 1886 219 Humboldt Gulch E of Arcata. Comment
  HSC99098  Luzula comosa C. Witte 2007-5-8 8 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  CHSC117678  Luzula macrantha Peter F. Zika 2011-7-3 25500 Humboldt Titlow Hill Road, near junction with Forest Road 6N36, 1 air mile S of Horse Mountain, Outer North Coast Ranges. 1410 Comment
  HSC90656  Luzula multiflora subsp. multiflora Gail Newton 1982-5-2 2518 Humboldt Elk River Wildlife Area Comment
  HSC64191  Luzula parviflora J. O. Sawyer, M. A. Ericksen 1979-6-23 3377 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC83992  Luzula parviflora L. P. Janeway 1983-5-1 253 Humboldt Along dirt rd. E of HSU water tank 61 Comment
  RSA69739  Luzula parviflora F. W. Peirson 1923-7-11 3673 Humboldt About 3 miles north of Orick. Comment
  HSC102061  Luzula parviflora subsp. parviflora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-7-12 1162 Humboldt Patterson Meadows 1566 Comment
  HSC36099  Lycopodiella inundata Gerald Fijii 1972-11-4 1 Humboldt Big Lagoon Bog 6 Comment
  JEPS371  Lycopodiella inundata Joseph P. Tracy 1928-9-8 8504 Humboldt Big Lagoon Northern Coast Ranges (in peat bog) 6 Comment
  HSC95519  Lycopodium clavatum Gordon Leppig 2004-2-3 2130 Humboldt Pacific Lumber Co. land, NE edge of THP 1-00-032. 300 Comment
  UC1239796  Lycopodium clavatum Joseph P. Tracy 1932-8-13 10341 Humboldt in woods around swamp 3 mi e Trinidad; Northern Coast Region 152 Comment
  UC1440267  Lycopodium clavatum L. L. Kiefer and D. Branscomb 1964-5-20 1435 Humboldt on Kuntz property 1 mi e Moonstone Beach (near Trinidad) 152 Comment
  UC496149  Lycopodium clavatum Mrs. L. B. Kildale 1930-11-1 10755 Humboldt 1 mi n Crannell (on trail to Camp 20) Comment
  CDA42448  Lycopodium clavatum Gordon Leppig 2004-2-3 2130 Humboldt The Pacific Lumber Company land, northeast edge of THP 1-00-032 HUM, Unit 1. Comment
  UC1198266  Lysichiton americanus Joseph P. Tracy 1947-5-24 17690 Humboldt Big Lagoon 9 Comment
  HSC91595  Lysichiton americanus E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near park entrance Comment
  JEPS42814  Lysichiton americanus W. L. Jepson 1902-6-24 1925 Humboldt Eureka Hupa Indian Reservation, Eureka Comment
  POM284991  Madia citriodora Lyman Benson 1929-7-12 1791 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  POM161463  Madia elegans subsp. elegans Joseph P. Tracy 2683 Humboldt Hillside near bridge across Little Va Duzen, northwest slope of Buck Mountain 762 Comment
  RSA293191  Madia gracilis subsp. gracilis Thomas W. Nelson, James Nelson 1976-5-30 2615 Humboldt McKeown Ranch north of Dinsmore. Comment
  UCR275106  Maianthemum dilatatum Charity A. Hartshorn 2016-5-14 36 Humboldt Arcata Community Forest 244 Comment
  RSA376907  Maianthemum dilatatum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 606 Humboldt About 25 miles north of Arcata on the south end of Big Lagoon. Comment
  HSC48402  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1973-6-10 96 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA1087  Maianthemum racemosum subsp. amplexicaule E. R. Johnson 1928-8-26 1147 Humboldt Arcata. Comment
  SEINET12051383  Maianthemum racemosum subsp. amplexicaule F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -286 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  RSA407376  Maianthemum stellatum Lyman Benson 1929-7-19 1859 Humboldt Dyerville to Matole River. Comment
  HSC98156  Maianthemum stellatum W. D. Stevens 1964-5-16 9 Humboldt 1.0 mi. N of Kneeland School Comment
  CAS-BOT-BC347412  Malacothrix floccifera Marcus E. Jones 1931-7-16 29095 Humboldt Junction, East of Arcata Comment
  HSC6006  Malacothrix floccifera Paul Shields Aug 1955 Humboldt 7 mi. S of Myers Flat Comment
  HSC18698  Malus fusca Gerald T. Rood 1962-5-6 9 Humboldt Kneeland Rd. ca. 1 mi. W of Barry Rd. Comment
  UCD116540  Malva verticillata Paul Holzberger 1981-8-24 s.n. Humboldt 1251 Williams Street, Eureka. Comment
  HSC59054  Marah oregana Thomas Wood 1979-4-20 121 Humboldt Along frontage Rd., parallel and E of Hwy. 101 at Patrick Creek Drive intersection, S of Patrick Creek. 6 Comment
  HSC7028  Marah oregana J. W. Johnson 1962-3-31 1412 Humboldt Arcata, along the Lanphere Lane near the swamp, Samoa Peninsula Comment
  HSC7030  Marah oregana S. J. Hawks 1965-4-6 17 Humboldt Luffenholtz Beach Comment
  JEPS42491  Marah oregana W. L. Jepson and W. W. Mott 1903-6-23 2207 Humboldt White Thorn Comment
  UCSB15707  Marah oregana Breedlove, Dennis 1961-7-4 Humboldt North bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  RSA91365  Medicago arabica Joseph A. Ewan 1937-7-2 10458 Humboldt Trinidad to Trinidad Head. Comment
  HSC14970  Medicago polymorpha J. E. Lankila 1962-5-6 16 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  POM161909  Melica californica var. nevadensis Joseph P. Tracy 1921-5-30 5491 Humboldt Kneeland Prairie. 762 Comment
  UC552699  Melica harfordii Joseph P. Tracy 1935-7-14 14079 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  CAS-BOT-BC262472  Melica subulata Joseph P. Tracy 1935-7-25 14224 Humboldt Trinity Summit. Near Corral Prairie 1584 Comment
  HSC10370  Melica subulata E. W. Styskel 1964-4-3 59 Humboldt 0.25 mi. NE of Garbervillie Airport along Sprowl Creek Rd. Comment
  RSA183513  Melica subulata D. E. Anderson 1965-5-8 3631 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along highway 299. Comment
  UC1103161  Melica subulata H. E. Parks and Joseph P. Tracy 1934-6-27 11075 Humboldt Grouse Mt. 1432 Comment
  UC277169  Melica torreyana Joseph P. Tracy 1921-4-24 5450 Humboldt Phillipsville Northern Coast Ranges, South Fork of Eel River (South Fork of Eel River) 91 Comment
  CHSC26754  Mentha pulegium M. S. Taylor 1977-8-5 1429 Humboldt Around ridge over Eel River, at turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  HSC34216  Mentha pulegium J. P. Smith 1975-7-6 8356 Humboldt Sizzler Steak House on 5th St. Eureka Comment
  HSC102515  Micranthes nidifica M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1501 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC71162  Micropus californicus var. californicus Thomas W. Nelson, Jane P. Nelson 1977-5-30 3408 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  UC1239517  Microseris bigelovii Joseph P. Tracy 1922-5-28 6057 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  CAS-BOT-BC349177  Microseris elegans K. L. Chambers 1969-5-25 2924 Humboldt On road to Harris 5.2 mi. E of the freeway overpass at Garberville Comment
  CAS-BOT-BC322679  Microseris laciniata Doris K. Kildale 1926-6-27 2186 Humboldt McClellan Mountain 822 Comment
  CAS-BOT-BC322686  Microseris laciniata M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  UC166792  Microseris laciniata subsp. laciniata Joseph P. Tracy 1909-7-31 3028 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS13230  Microseris laciniata subsp. laciniata Joseph P. Tracy 1934-7-6 13661 Humboldt at Sibley Ranch; Iaqua, Sibley Ranch 609 Comment
  CHSC62187  Microseris nutans K. L. Chambers 1990-6-23 5515 Humboldt Horse Mtn., off Titlow Hill Rd., s. of Hwy. 299, e. of Arcata. On slope below the parking lot for the winter spots area. 1493 Comment
  UC582734  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  SEINET10496812  Microsteris gracilis Lawrence P. Janeway 1983-4-16 Janeway 229 Humboldt Lord-ellis summit quad. T6n,r4e,sec.19. W facing slope near the old hwy 299 on W side of berry summit. Open hill grassland 823 Comment
  CDA41683  Mimulus alsinoides B. F. Kemp 1958-4-14 s.n. Humboldt Winters Ranch, north of Bald Hills School, near Eureka. 0 Comment
  RSA550828  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-6 1116 Humboldt 0.8 mi s of Hwy 101 interchange access road (to Trinity town) along road to Luffenholtz Beach 50 Comment
  UCSB10373  Mimulus aurantiacus var. aurantiacus Parks, H.; Parks, S. 1951-6-1 Humboldt Along bay shore near landing, Trinidad Comment
  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
  UC582601  Mimulus douglasii Joseph P. Tracy 1925-5-24 7012 Humboldt Kneeland Prairie 762 Comment
  UC1191884  Mimulus grandis Malcolm A. Nobs, S. Galen Smith 1949-8-3 1192 Humboldt southern outskirts Eureka Comment
  JEPS10474  Mimulus guttatus Lincoln Constance 1934-5-26 683 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  UC41881  Mimulus inodorus Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC444806  Mimulus kelloggii Mrs. M. H. Manning 1901-5-26 Humboldt near Hupa; Hupa Valley Comment
  HSC20780  Mimulus moschatus J. P. Tracy 1935-7-23 14165 Humboldt Trinity Summit: lower end of Brett Hole 1585 Comment
  JEPS14946  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15597 Humboldt w slope near top South Fork Mountain (at Hyampom Trail) 1676 Comment
  JEPS86687  Mimulus nanus var. nanus L. R. Heckard with T. I. Chuang 1990-7-15 6770 Humboldt below and s of road South Fork Mountain (summit of Blakes Mountain); , Blakes Mountain 1800 Comment
  HSC20790  Mimulus pilosus David Adams 1960-8-20 Humboldt Eel River; Whitlow (Sequoia) 56 Comment
  UC1103339  Mimulus primuloides subsp. primuloides Joseph P. Tracy 1919-9-22 5266 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  SEINET6904196  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1103540  Minuartia californica Joseph P. Tracy 1920-5-20 6215 Humboldt dry slope towards Lawrence Creek; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1198870 Image available Mitella diversifolia Joseph P. Tracy 1935-7-22 14123 Humboldt near Forks of Tish-Tang-A-Tang Creek; Trinity Summit 1371 Comment
  UC1198864  Mitella ovalis Joseph P. Tracy 1906-5-6 2439 Humboldt near Hydesville; Northern Coast Region, Wolverton Gulch 60 Comment
  UC673257  Mitella ovalis Lincoln Constance and Reed C. Rollins 1942-5-11 2865 Humboldt near summit 8 mi e Blue Lake; North Coast Ranges Comment
  HSC102031  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 933 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC55867  Mitella trifida G. L. Clifton, Griswold 1979-7-25 10889 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  JEPS49672  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  SD56850  Mitellastra caulescens Darley F. Howe 1963-8-7 3806 Humboldt 23 mi west of west end to 6 Rivers north fork on #299 213 Comment
  HSC37863  Modiola caroliniana Peter Sorensen 1976-6-16 Humboldt Humboldt Bay; Woodley Island Comment
  UC18806  Modiola caroliniana Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6176 Humboldt near Ferndale; North-Western California Comment
  UC183559  Moehringia macrophylla Joseph P. Tracy 1913-5-4 4056 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC57989  Monardella odoratissima G. L. Clifton, Griswold 1979-7-31 11732 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC76524  Monardella odoratissima Teresa Prendusi 1981-7-21 273 Humboldt Near Whiteys Peak 1646 Comment
  RSA20804  Monardella odoratissima Carl B. Wolf 1937-8-13 9269 Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  HSC32512  Monardella sheltonii Thomas W. Nelson 1973-9-3 1134 Humboldt McKeown Ranch N of Dinsmore Comment
  CAS-BOT-BC220518  Monardella villosa L. R. Abrams; R. C. Bacigalupi 1922-6-25 8221 Humboldt Camp 6 mi north of Garberville Comment
  UC416723  Monardella villosa subsp. villosa P. E. Goddard 1901-7 3 Humboldt Hupa Valley Comment
  RSA255779  Monotropa uniflora Gary D. Wallace 1973-7-11 1251 Humboldt Eastern part of Prairie C reek Redwoods St. Pk. 427 Comment
  CAS-BOT-BC444800  Montia diffusa Don Hagar 1957-6-6 59 Humboldt Brush Mountain, ca. 4 miles southwest of Willow Creek 853 Comment
  CAS-BOT-BC445163  Montia parvifolia Harley P. Chandler 1901-5-1 1261 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  HSC64307  Montia parvifolia Steve Selva 1973-5-26 6851 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC90235  Morella californica L. Watson, J. Meninga Aug 1990 8 Humboldt Mad River Slough and Dunes, N of parking lot, W of trail, near Manilla Comment
  UC503092  Morella californica Joseph P. Tracy 1931-5-1 9332 Humboldt Northern Coast Ranges, Downs Prairie Comment
  CAS-BOT-BC260573  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  UCD138687  Muscari armeniacum Joseph M. DiTomaso 1976-3-28 344 Humboldt Samoa Cookhouse 3 miles northwest of Eureka. Comment
  SDSU19202  Myosotis latifolia Michael G. Simpson, Michael Mayer 2008-5-28 3016 Humboldt Upland above College Cove, Trinidad State Beach, along path to beach, down from south parking lot. 61 Comment
  CAS-BOT-BC101664  Myrica californica Volney Rattan s.n. Humboldt unspecified Comment
  UC1197938  Myrica californica J. P. Tracy 1901-4-21 1034 Humboldt immediate vicinity Eureka (Ricks Prairie); Ricks Prairie 0 Comment
  UC1585367  Myrica californica R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 18 Humboldt W. of Eureka 0.5 km. S. of Hwy. 255 on New Navy Base Rd., on North spit of Samoa Peninsula. Comment
  RSA246866  Myriophyllum aquaticum Robert F. Thorne, P. C. Everett 1965-8-9 35330 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC535743  Narthecium californicum Eleanor Armstrong 1934-1 1176 Humboldt Patricks Point Comment
Read comments
Dec 5 2007
  HSC15608  Narthecium californicum J. P. Tracy 1930-7-17 9003 Humboldt S Fork Mtn. at McKay Camp 1677 Comment
  UC526762  Nassella lepida Joseph P. Tracy 1933-5-20 12247 Humboldt hillside near Petrolia; Northern Coast Ranges, Mattole Valley 152 Comment
  UCD87817  Nassella lepida D. W. Cooper 1956-4-27 s.n. Humboldt Mattole area. Around Petrolia. Comment
  HSC90662  Nasturtium officinale Gail Newton 1982-6-10 3637 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC6893  Nasturtium officinale P. W. Shields 1955-6-16 Humboldt HSU campus Comment
  UC908512  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC55328  Navarretia divaricata Griswold, Butler 1979-7-12 7167 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC908394  Navarretia divaricata subsp. vividior Joseph P. Tracy 1934-7-9 13326 Humboldt n of Bell Springs; Northern Coast Ranges, Chamise Mt. 1066 Comment
  UC133639  Navarretia linearifolia subsp. pinnatisecta Joseph P. Tracy 1908-6 2797 Humboldt opposite Buck Mountain (Valley of Van Duzen River, along Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC146171  Navarretia squarrosa J. P. Tracy 1904-7-31 2135 Humboldt immediate vicinity Eureka 0 Comment
  JEPS70475  Navarretia squarrosa Lincoln Constance 1934-6-25 931 Humboldt across road Collin's Englewood Campground (on e side of road at Englewood, main Eel River); Eel River, Bull Creek Region, Englewood Comment
  POM64955  Navarretia viscidula Joseph P. Tracy 1916-6-20 4732 Humboldt Alder Point, Northern Coast Ranges 152 Comment
  UC582689  Navarretia viscidula Joseph P. Tracy 1937-7-11 15420 Humboldt vicinity Garberville 121 Comment
  HSC100628  Neillia opulifolia Carl C. Marshall Apr 1885 52 Humboldt Streams etc. near coast. Comment
  HSC13577  Nemophila menziesii var. atomaria J. R. Kahl 1962-3-13 11 Humboldt 2 mi. S of Trinidad along old Hwy. 101 Comment
  CAS-BOT-BC231216  Nemophila parviflora var. austiniae Marck Menke 1999-5-31 32 Humboldt Redwood National Park, near Tall Trees Grove Comment
  UC162684  Nicotiana quadrivalvis Joseph P. Tracy 1911-7-10 3500 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UCD110165  Notholithocarpus densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt Near Boynton Prairie. 609 Comment
  UCR4969  Notholithocarpus densiflorus Frank C. Vasek 1966-7-13 660713- 03 Humboldt North Coast Range, 3 mi. west of Garberville 450 Comment
  HSC99078  Notholithocarpus densiflorus var. echinoides Cara Witte 2008-7-25 940 Humboldt Forest Service Road 5N10. Approximately 1.5 miles north of intersection with Forest Service Road 5N10C. 1319 Comment
  HSC38297  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt Beside Eureka Muni. Golf Course Comment
  HSC99107  Oemleria cerasiformis Cara Witte 2008-6-13 721 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  UC1198783  Oemleria cerasiformis Joseph P. Tracy 1920-2-29 5310 Humboldt Eureka Northern Coast Ranges (at Stephen Hill place) 60 Comment
  HSC21577  Oenanthe sarmentosa Paul Shields 1965-6-16 Humboldt HSC campus Comment
  HSC23225  Oenanthe sarmentosa Thomas O. Erickson 1971-10-28 1 Humboldt Luffenholtz Beach off Hwy. 101 N of Moonstone Comment
  CHSC70154  Oenothera glazioviana David K. Imper 1993-6-15 Humboldt Base of sand dunes, south end of Manila, west of Eureka. 6 Comment
  POM224766  Oenothera glazioviana P. A. Munz 1936-8-13 14384 Humboldt 7 miles east of Arcata. Comment
  RSA44496  Oenothera glazioviana H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region. Comment
  JEPS12001  Orobanche fasciculata Joseph P. Tracy 1935-7-30 14374 Humboldt Salmon Summit. Comment
  JEPS10821  Orobanche fasciculata Lincoln Constance 1934-5-29 741 Humboldt Bull Creek Region. South Fork Eel River. Upper Look Prairie, just above Lookout Point. Comment
  UC1197575  Orthilia secunda Joseph P. Tracy 1935-7-23 14156 Humboldt Trinity Summit, Lower end of Brett Hole 1584 Comment
  POM299483  Orthocarpus pusillus C. C. Harris, S. K. Harris 1942-6-18 1283 Humboldt 1 mile north and 3 miles west of Chalk Mountain. 665 Comment
  HSC31140  Osmorhiza berteroi J. O. Sawyer, R. J. Cole 1970-6-24 2271 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC74434  Osmorhiza berteroi Gail Newton 1980-8-10 2064 Humboldt Near Blake Mtn. 1707 Comment
  HSC76401  Osmorhiza berteroi Denis Kearns 1981-7-23 388 Humboldt Near Whiteys Peak 732 Comment
  UC154112  Osmorhiza berteroi J. P. Tracy 1906-5-20 2464 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC48758  Osmorhiza berteroi Brad Klipfel 1973-6-16 70 Humboldt Along ridge trail SE of N Trinity Mountain 1829 Comment
  HSC16697  Oxalis corniculata T. W. Beck 1963-4-27 44 Humboldt Camp Bauer, Korbel Comment
  JEPS43138  Oxalis oregana W. L. Jepson 1934-5-7 16696 Humboldt Bull Creek Comment
  UC1103424  Oxalis oregana Joseph P. Tracy 1901-4-7 1006 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC69850  Oxalis oregana R. Kalal 1979-5-5 42 Humboldt Fickle Hill Rd., 1.0 mi. E of 11th St. 183 Comment
  UC1103421  Oxalis oregana Joseph P. Tracy 1926-7-5 7721 Humboldt near Redwood House (head of Grizzle Creek, towards South Yager); Northern Coast Ranges 609 Comment
  UC203882  Oxalis oregana Joseph P. Tracy 1918-5-28 4940 Humboldt e Bald Mt. (High Prairie Creek); Northern Coast Ranges 914 Comment
  UC598569  Oxalis oregana W. K. Fisher 1899-6-12 48 Humboldt Humboldt Bay Comment
  HSC55209  Oxalis trilliifolia Walter Overton 1979-8-1 12336 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC99469  Oxalis trilliifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 123 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1103418  Oxalis trilliifolia Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16665 Humboldt near Grouse Mt. (Friday Ridge); Friday Ridge 1371 Comment
  SEINET3133169  Panicum lanuginosum var. fasciculatum R. W. Spellenberg 1966-9-8 1630 Humboldt Bank of S. Fk. Eel River at Hwy. 101, 5 mi S of Barberville Comment
  CDA2147  Panicum miliaceum T. R. Haig 1975-8-27 Humboldt Korbel. 0 Comment
  HSC94174  Parapholis incurva Gordon Leppig, Sylvia Leppig 2000-5-29 1385 Humboldt Trinidad Harbor. 4 Comment
  SEINET200977 Image available Parapholis incurva Joeseph P. Tracy 1936-6-6 14860 Humboldt Eureka, CA 3 Comment
  HSC35456  Parapholis strigosa J. D. Ackerman 1975-8-2 604 Humboldt Intersection of Indianola Cutoff and US Hwy. 101 1 Comment
  SDSU10856  Parentucellia viscosa D. F. Howe 1961-8-1 3112 Humboldt 9.0 miles N of Arcata. Comment
  HSC104072  Parnassia palustris S. Carothers 2001-8-29 Humboldt Six Rivers National Forest; Lassics Botanical Area 1537 Comment
  HSC71156  Paxistima myrsinites Thomas W. Nelson 1977-6-15 3426 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 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
  UC1239631  Pectocarya penicillata Joseph P. Tracy 1911-7-10 3484 Humboldt near mouth Willow Creek; Valley of Trinity River 152 Comment
  UC902220  Pedicularis densiflora Joseph P. Tracy 1941-3-26 16818 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  UC213504  Pedicularis racemosa Joseph P. Tracy 1919-9-18 5249 Humboldt Trinity Summit; Northern Coast Ranges 1524 Comment
  UC902242  Pedicularis racemosa Joseph P. Tracy 1948-9-5 18170 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  POM301297  Pedicularis racemosa Joseph P. Tracy 1948-9-5 18170 Humboldt Happy Camp Mountain. In Trinity Summit Range, northeast of Hawkins Bar. 1280 Comment
  UCD137663  Pellaea brachyptera Freed W. Hoffman 1949-7-15 3007 Humboldt Mount Lassic area a little south of Blue Ridge; Mule Slide. Comment
  HSC100913  Penstemon jaffrayanus Carl C. Marshall Jun 1886 275 Humboldt Trail E of Hoopa. Comment
  HSC97604  Penstemon laetus subsp. sagittatus Cara Witte 2007-5-29 141 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  JEPS11631  Penstemon laetus var. sagittatus Joseph P. Tracy 1933-7-25 12827 Humboldt Horse Mountain 1432 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
  UC168971  Penstemon laetus var. sagittatus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5666 Humboldt between Redwood Creek and Hoopa Valley (summit of Hoopa Mt.); North Coast Ranges, summit of Hoopa Mt. Comment
  RSA517741  Penstemon newberryi subsp. berryi W. K. Parks 1933-07 s.n. Humboldt South Fork Mountain. Comment
  JEPS26260  Penstemon newberryi var. berryi Joseph P. Tracy 1933-7-16 12786 Humboldt South Fork Mountain, near McKay Camp Northern Coast Ranges 1676 Comment
  HSC102117  Penstemon procerus var. brachyanthus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1021 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SD129743  Penstemon rattanii var. rattanii Harold E. Parks June 1951 Humboldt Kneeland, Camaron Hill Comment
  SEINET10547443 Image available Penstemon rattanii var. rattanii V. Rattan Rattan 11918 Humboldt 792 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
  UC314588  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1923-6-3 6255 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC32525  Perideridia kelloggii Thomas W. Nelson 1973-9-3 1126 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1197324  Perideridia kelloggii Joseph P. Tracy 1921-10-2 5967 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC98872  Perideridia oregana Cara Witte 2007-7-5 421 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  HSC55993  Perideridia parishii subsp. latifolia Overton, Butler 1979-7-31 11423 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC330378  Petasites frigidus var. palmatus Doris K. Kildale 1926-3-26 1631 Humboldt Old Kneeland Road 609 Comment
  UCD134920  Petasites frigidus var. palmatus Joseph M. DiTomaso 1976-3-28 359 Humboldt just east of summit on Highway 299, 7 miles west of Willow Creek. 762 Comment
  UCR179280  Petasites frigidus var. palmatus R. G. Swinney 1968-3-28 236 Humboldt East of Humboldt State College, Arcata 152 Comment
  HSC100713  Petasites palmatus Carl C. Marshall Apr 1886 54 Humboldt Banks of streams. Comment
  HSC37415  Phacelia bolanderi Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 517 Humboldt Along Lost Man Creek. 38 Comment
  SEINET12335255  Phacelia bolanderi F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -304 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC65631  Phacelia egena J. P. Smith, Steve Selva 1970-6-14 3828 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  RSA201448  Phacelia egena Alice Eastwood, J. T. Howell 1937-6-23 4759 Humboldt Dinsmore s. Comment
  HSC57203  Phacelia heterophylla Griswold, Butler 1979-7-10 7129 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  JEPS81021  Phacelia nemoralis subsp. oregonensis J. P. Smith and Steve Selva 1970-6-14 3828 Humboldt along CA 96 at Whitmore Creek 152 Comment
  UC1228294  Phacelia nemoralis subsp. oregonensis C. R. Bell 1951-5-4 1041 Humboldt road bank 0.7 mi s Bluff Creek Comment
  CAS-BOT-BC258863  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta 60 Comment
  JEPS49607  Philadelphus lewisii Milo S. Baker 1923-7-20 78 Humboldt between head of Yager Creek and Bridgeville Comment
  RSA0057781  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt Along Redwood Creek, 2 miles W of Briceland. Comment
  RSA53856  Phleum pratense Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  UC572265  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 mi ne Bald Mountain; China Flat Quad. Comment
  UC906757  Phlox adsurgens Joseph P. Tracy 1942-6-23 17233 Humboldt near Box Camp; Trinity Summit 1524 Comment
  SJSU914  Phlox adsurgens J. W. Tilden 1946-6-20 1009 Humboldt Bluff Cr c. 1.5 mi above junction with Klamath R Comment
  UC1222710  Phlox adsurgens Joseph P. Tracy 1950-7-2 18965 Humboldt 6 mi ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1198557  Phlox gracilis Joseph P. Tracy 1908-6 2829 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  UC1198558  Phlox gracilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8938 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC906692  Phlox gracilis Joseph P. Tracy 1942-6-23 17403 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1198130  Phoradendron villosum Joseph P. Tracy 1949-12-3 18599 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC41478  Phyla nodiflora Ed Cope, R. Runyon 1977-7-20 132 Humboldt 15th and H St., Arcata. Comment
  UC535001  Phyllospadix torreyi H. E. Parks 1933-11-12 Humboldt Spruce Cove Trinidad Comment
  CAS-BOT-BC73444  Picea sitchensis Carl B. Wolf 1930-10-28 1037 Humboldt 5 miles south of Ferndale on road to Petrolia. 152 Comment
  CAS-BOT-BC78199  Picea sitchensis L. R. Abrams 1922-6-25 8247 Humboldt near South Bay Comment
  SBBG56401  Picea sitchensis J. W. Howe 1938-3-31 Humboldt near Arcata Comment
  SD51259  Picea sitchensis Darley F. Howe 1961-8-1 Humboldt 3 miles north of Arcata on Highway #101 Comment
  UC1585368  Picea sitchensis R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 53 Humboldt 0.5 km s Hwy 255 (on New Navy base Rd, w of Eureka); North Split of Samoa Peninsula Comment
  UC527820  Picea sitchensis Ira L. Wiggins 1932-6-28 5870 Humboldt hillside just n Little River Comment
  UC535712  Picea sitchensis Eleanor Armstrong 1934-7-31 1145 a Humboldt Patricks Point 30 Comment
  HSC1478  Pinus contorta L. H. Myers 1963-5-13 21 Humboldt Dunes W of Lanpheres Rd., Mad River Slough area. Comment
  UC400255  Pinus contorta subsp. contorta P. E. Goddard 1901-8-1 Humboldt North Humboldt Bay Comment
  NY49716  Pinus contorta var. contorta R. E. Anderson 1987-3-28 172 Humboldt Patrick's Point State Park, on west Rim Trail 30 Comment
  RSA286309  Pinus contorta var. contorta Robert F. Thorne 1974-7-29 45083 Humboldt Somoa Dunes. Comment
  HSC74337  Pinus lambertiana M. A. Baker 1980-5-18 1280 Humboldt Near Black Mtn. 1006 Comment
  UC212990  Pinus monticola Mrs. F. A. Graham 1919-8-1 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC1204918  Pinus muricata unknown July, 1935 Humboldt 1/2 mi or so back from ocean; Moonstone Beach settlement 60 Comment
  UC551328  Pinus muricata Charles T. Berg 1936-8-8 Humboldt Moonstone Beach Arcata, Moonstone Beach Comment
  UC1196925  Pinus ponderosa Joseph P. Tracy 1926-6-27 7678 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC1574  Pinus radiata R. A. Magie 1964-5-3 45 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  HSC104336  Piperia candida James Regan, Humboldt Redwood Co., LLC 2016-7-1 29 Humboldt Bear River, at Nelson and Harmonica Creeks. 40.38939 N, -124.084639 W; 427 Comment
  POM208985  Piperia candida Lincoln Constance 1934-5-27 708 Humboldt Humboldt Redwood Park, in Border Forest, bluff above Bull Creek, Flat Grove 61 Comment
  RSA34283  Piperia elegans J. Wendell Howe 1934-7-21 s.n. Humboldt Horse Mountain 1524 Comment
  UC1225849  Piperia elongata Joseph P. Tracy 1948-7-11 18073 Humboldt Willow Creek Trinity River Valley 152 Comment
  BLMAR587  Piperia unalascensis Jennifer Wheeler 2010-7-13 587 Humboldt King range, along Panther Gap Road 792 Comment
  UC1196413  Piperia unalascensis Joseph P. Tracy 1926-5-2 7416 Humboldt near South Fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA95501  Pityopus californicus Harry L. Buckalew s.n. Humboldt James Irvine Trail - 2 miles from the ocean; Prairie Creek State Park. Comment
  JEPS61016  Plagiobothrys Joseph P. Tracy 1942-6-15 Humboldt Garberville 304 Comment
  SEINET3152905  Plagiobothrys nothofulvus N. Dennis 1965-6-11 114 Humboldt About 1/4 miles S and 1 mile E of the juction of Berry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles SE of Kneeland. 792 Comment
  JEPS30758  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove Trinidad 64 Comment
  UC1541669  Plagiobothrys reticulatus H. E. and S. T. Parks July 1937 24042 Humboldt Trinidad, Spruce Cove Comment
  JEPS60999  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1936-6-28 15009 Humboldt near Murphy Meadows; Bald Mt. 914 Comment
  SEINET12275868  Plagiobothrys scouleri J. P. Tracy 1949-1 18322 Humboldt Cameron Hill on Kneeland Road Comment
  JEPS68130  Plagiobothrys tenellus Joseph P. Tracy 1921-4-24 5649 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UCSB15784  Plantago erecta Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC104158  Plantago erecta Andrea Pickart 2002-4-3 35 Humboldt Samoa Dunes, Eureka airport. 15 Comment
  HSC16834  Plantago lanceolata Francis Winter 1960-4-24 Humboldt 1 mi. N of Redwood Creek Ranch 396 Comment
  UCD124617  Plantago lanceolata Gary Wallace 1966-9-12 706 Humboldt East of Arcata near Willow Creek along Hwy 299. Comment
  UC429188  Platanthera Franklin P. Nutting Humboldt Bridge Creek, n California Bridge Creek Comment
  UC275579  Platanthera leucostachys Joseph P. Tracy 1924-7-13 6726 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UCSC000161  Platanthera leucostachys W. Jan Rowe 1967-1 Humboldt Comment
  HSC54540  Platanthera sparsiflora Overton, Butler 1979-7-23 9523 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC99365  Platanthera sparsiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 14 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC16798  Platystemon californicus J. R. Woodside 1963-4-3 34 Humboldt 1.25 mi. N of Fairhaven. Comment
  POM149391  Platystemon californicus var. californicus Joseph P. Tracy 1904-4-24 2020 Humboldt Sand dunes of ocean beach at Humboldt Bay, Northern Coast Region. Comment
  UC602529  Plectritis brachystemon Joseph P. Tracy 1932-5-22 10117 Humboldt between Miranda and Redway (North Coast Ranges, South Fork of Eel River); North Coast Ranges, South Fork Eel River 91 Comment
  UC169079  Plectritis brachystemon Harley P. Chandler 1901-6-6 1414 Humboldt North Coast Ranges, Klamath River, Saint's Rest, (Nature's Rest) Nature's Rest; North Coast Ranges, Klamath River, Saint's Rest 304 Comment
  UC176121  Plectritis congesta Joseph P. Tracy 1912-6-9 3652 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  SEINET200957 Image available Pleuropogon refractus J. P. Tracy 1932-7-14 10539 Humboldt Corral Prairie 1524 Comment
  UC1152046  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
  UC1152688  Pleuropogon refractus D. E. Anderson 1963-3-24 2404 b Humboldt Old logging road on s side of Jacoby Creek Comment
  UC1258213  Pleuropogon refractus Paul But 1975-6-1 P 13 Humboldt about 10 mi n of Orick; Prairie Creek Redwood State Park Comment
  UCD90103  Pleuropogon refractus A. H. Murphy 1951-6-25 72 Humboldt 1 mile east of Snow Camp, ca. 8 miles e.n.e. of Kneeland. Comment
  UCD90106  Pleuropogon refractus R. Tofsrud 1949-7-22 s.n. Humboldt on road between Scotia and Capetown. Comment
  HSC89479  Poa annua P. A. Daly 1986-3-12 76 Humboldt Trinidad Head, along trail 61 Comment
  UC205645  Poa douglasii Joseph P. Tracy 1917-5-30 4804 Humboldt sand dunes of Ocean Beach at Little River Comment
  UC665695  Poa douglasii H. E. Parks May, 1934 4805 Humboldt Little River Lagoon Comment
  RSA10144  Poa howellii Joseph P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC254284  Poa macrantha W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC255942  Poa pratensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC1132727  Poa pratensis subsp. pratensis H. S. Yates 1936-5-23 5854 Humboldt 2 mi e of mouth of Mad River; Eureka Quadrangle Comment
  RSA63625  Poa secunda Milo S. Baker s.n. Humboldt Near Yager Comment
  SEINET200626 Image available Poa secunda Joseph P. Tracy 1932-7-17 10693 Humboldt Klamath Mountains Trinity Summit, Humboldt county, Head of Devils Hole 1829 Comment
  CAS-BOT-BC235984  Poa secunda subsp. secunda Joseph P. Tracy 1933-6-13 12602 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 914 Comment
  HSC32621  Poa secunda subsp. secunda D. E. Anderson 1965-5-22 3728 Humboldt Hunt Ranch, 3-4 mi. N of Bridgeville. Comment
  HSC47605  Poa secunda subsp. secunda J. P. Smith 1977-4-23 9022 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC1103170  Poa secunda subsp. secunda J. P. Tracy 1903-5-23 1896 Humboldt on Eel River Alder Point 152 Comment
  UC525667  Poa secunda subsp. secunda Joseph P. Tracy 1927-5-15 8051 Humboldt w Hoopa Valley (Supply Creek); North Coast Ranges 304 Comment
  SEINET200570 Image available Poa trivialis J. P. Tracy 1909-6-13 2998 Humboldt On Mad River, 5 miles from its mouth, on damp banks in partial shade. 30 Comment
  UC249871  Poa trivialis Joseph P. Tracy 1923-5-30 6245 Humboldt Salmon Creek Corners; Northern Coast Ranges, Humboldt Bay 6 Comment
  UC525618  Poa trivialis Joseph P. Tracy 1926-6-12 7590 Humboldt near Orick (at Davison's Ranch on Prairie Creek); North Coast Ranges 60 Comment
  HSC32032  Polycarpon tetraphyllum D. E. Anderson 1974-8-1 Humboldt 6th St. in Eureka Comment
  HSC48881  Polycarpon tetraphyllum J. P. Smith, Thomas W. Nelson 1977-6-30 9222 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC48413  Polygala californica J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9929 Humboldt Ishi Pishi Rd., 2.5 mi. from Jct. with State Rte. 36 in Orleans. 213 Comment
  UC668188  Polygala cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC167575  Polygala cornuta var. cornuta Harley P. Chandler 1901-6-1 1502 Humboldt Klamath River 426 Comment
  HSC98083  Polygala cornuta var. cornuta Cara Witte 2007-7-10 475 Humboldt Horse Mountain Botanical Area. Forest service Road 6N36A. 1334 Comment
  UC1541401  Polygonum amphibium var. emersum H. E. Parks August 1934 5165 Humboldt Big Lagoon Comment
  UC179957  Polygonum bistortoides Joseph P. Tracy 1914-7-4 4536 Humboldt Bald Mountain Northern Coast Ranges (High Prairie) 1066 Comment
  UC146191  Polygonum californicum Joseph P. Tracy 1908-6 2922 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC144100  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1909-7-31 3038 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA152547  Polygonum kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit Corral Prairie, in wet meadow Comment
  HSC45472  Polygonum minimum Thomas W. Nelson, Jane P. Nelson 1978-7-2 4392 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  BLMAR58  Polygonum paronychia Jennifer Anthony-Wheeler 1994-3-1 58 Humboldt Samoa/manilla dunes, growing throughout the coastal dunes 12 Comment
  UC672955  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UCD100641  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit, Corral Prairie. 1584 Comment
  RSA139174  Polygonum sachalinense T. C. Fuller 1960-8-25 4973 Humboldt W Hwy 101 0.25 mile N of Humboldt Hill Road, Eureka Comment
  UC1222467  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1933-8-30 13023 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC421006  Polygonum spergulariiforme Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1219 Comment
  POM210237  Polygonum spergulariiforme H. E. Parks, Joseph P. Tracy 1930-9-15 767 Humboldt Bald Hills Comment
  UCSB29342  Polypodium californicum Phelps, M. 1972-3-23 Humboldt 1.5 mi from Garberville along Old Briceland Rd., 1,500 yds. N of roadside 213 Comment
  CAS-BOT-BC76875  Polypodium glycyrrhiza M. S. Jussel 1931-5-2 94 Humboldt Sylvandale, 8 miles N of Garverville. Comment
  UCD136880  Polypodium glycyrrhiza Linda M. Barker 1976-2-22 1313 Humboldt 3 miles west of Arcata. Comment
  HSC26398  Polypodium scouleri T. O. Osborne 1970-9-16 33 Humboldt Trinidad Bay, Prisoner Rock Comment
  UC370621  Polypodium scouleri H. E. Parks June 1925 3232 Humboldt Orick Comment
  RSA85053  Polypodium scouleri F. W. Peirson 1926-7-12 7039 Humboldt Hills north of inlet at Orick Comment
  UCD91028  Polypogon interruptus Joseph P. Tracy 1936-6-8 14871 Humboldt Trinidad. 9 Comment
  UC204533  Polypogon maritimus Joseph P. Tracy 1918-7-1 4967 Humboldt along Eel River from South Fork to Scotia Holmes Flat; Northern Coast Ranges, along Eel River 60 Comment
  HSC39900  Polypogon monspeliensis J. P. Smith 1971-10-9 5035 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC62871  Polypogon monspeliensis J. M. DiTomaso 1979-4-21 887 Humboldt Clam Beach. Comment
  UC1440057  Polystichum californicum Danin & H. G. Baker 1960-8-13 598 Humboldt ca. 2 mi n Dyerville (High Rock on w side of Eel River, along Ave. of the Giants) Comment
  UC1440058  Polystichum californicum Danin & H. G. Baker 1960-8-13 597 Humboldt ca. 2 mi n Dyerville (High Rock, along Ave. of Giants, w side Eel River) Comment
  SEINET11723017  Polystichum dudleyi E. A. York 1990-1-10 2670 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC1156  Polystichum imbricans D. E. Anderson 1963-9-21 2832 Humboldt 0.5 mi. E of Willow Creek Comment
  UC519314  Polystichum imbricans subsp. imbricans Joseph P. Tracy 1933-6-13 12596 Humboldt near summit on rd w from Hoopa to Bair's Hoopa Mt.; Northern Coast Ranges 1066 Comment
  SD92985  Polystichum imbricans subsp. imbricans W. Bertsch 1953-7-29 215 Humboldt near Weott, Highway 101 60 Comment
  HSC35693  Polystichum munitum Thomas W. Nelson 1975-1-16 1749 Humboldt E of HSU campus Comment
  HSC95887  Polystichum munitum Will Ferrand 2002-4-20 26 Humboldt 9 mi. E of int. of West End Rd. and Warren Cr. Rd. 67 Comment
  UCSB8319  Polystichum munitum Robbins, G. 1936-8-1 Humboldt Near Carlotta. Comment
  UC249539  Populus trichocarpa Joseph P. Tracy 1922-10-8 6125 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  UC275528  Populus trichocarpa Joseph P. Tracy 1923-5-6 6197 Humboldt Blue Lake; Northern Coast Ranges, Blue Lake 30 Comment
  UC492231  Populus trichocarpa Joseph P. Tracy 1932-4-24 9800 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  RSA84982  Potamogeton natans F. W. Peirson 1923-7-11 3640 Humboldt 20 miles north of Eureka. Comment
  HSC59076  Potamogeton natans Thomas Wood 1979-5-17 185 Humboldt Clam Beach Pond, E of Clam Beach-Little River Beach, along Hwy. 101 3 Comment
  HSC59499  Potamogeton natans M. A. Ericksen 1979-4-20 209 Humboldt Northernmost Clam Beach ponds, .3 mi. S of Cranell Rd. and Little River Dr., 16 mi. N of Eureka Comment
  RSA246825  Potamogeton richardsonii Robert F. Thorne 1965-9-19 35462 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  CAS-BOT-BC143080  Potentilla anserina subsp. pacifica Doris K. Kildale 1926-6-25 2178 Humboldt Big Lagoon Comment
  HSC18720  Potentilla anserina subsp. pacifica Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  HSC63026  Potentilla anserina subsp. pacifica J. P. Smith 1971-10-6 4937 Humboldt End of Murray Rd. in McKinleyville. Comment
  UCD113696  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  HSC58182  Potentilla gracilis var. fastigiata G. L. Clifton, Griswold 1979-8-2 12270 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC34911  Prosartes hookeri Thomas W. Nelson, James Nelson 1975-5-24 1854 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC70643  Prosartes hookeri R. York 1980-5-18 561 Humboldt Near Black Mtn. 1006 Comment
  SBBG58721  Prosartes hookeri R. Hartwell 1938-8-4 107 Humboldt Bull Crk Flat Comment
  SBBG979  Prosartes hookeri H. and M. Dearing 1933-5-16 253 Humboldt Weott Comment
  HSC15477  Prosartes smithii H. E. Parks 1935-3 5582 Humboldt Trinidad Comment
  SBBG58724  Prosartes smithii R. Hartwell 1938-8-3 101 Humboldt near Garberville Comment
  JEPS62488  Prunella vulgaris var. lanceolata Joseph P. Tracy 1940-9-26 16729 Humboldt Eureka 6 Comment
  UC1124438  Prunella vulgaris var. lanceolata H. L. Person 1932-7-16 Humboldt Highway n Trinidad; Rock Point Quad. Comment
Read comments
Aug 3 2007
  CAS-BOT-BC159977  Prunus emarginata Doris K. Kildale 1927-6-26 3600 Humboldt Big Lagoon Comment
  HSC31454  Prunus emarginata D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5572 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC58063  Prunus emarginata G. L. Clifton, Griswold 1979-8-1 11940 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC666844  Prunus emarginata Joseph P. Tracy 1933-6-13 12571 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  CAS-BOT-BC357269  Pseudognaphalium microcephalum Joseph P. Tracy 1938-8-14 16111 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC79536  Pseudognaphalium stramineum Kenneth Clark 1979-7-1 455 Humboldt Dead Man's Gulch 9 Comment
  CAS-BOT-BC357605  Pseudognaphalium stramineum L. R. Abrams 1922-6-25 8223 Humboldt 6 mi north of Garberville Comment
  HSC89524  Pseudognaphalium stramineum M. Roantree 1985-6-11 90 Humboldt SW side of Trinidad Head Comment
  JEPS20483  Pseudognaphalium thermale Joseph P. Tracy 1938-8-14 16111 Humboldt Willow Creek Trinity River Valley, Willow Creek Comment
  JEPS20470  Pseudognaphalium thermale Joseph P. Tracy 1939-8-16 16424 Humboldt Friday Ridge Grouse Mountain, Friday Ridge 1219 Comment
  RSA134611  Pseudotsuga menziesii P. C. Everett, B. K. Balls 1959-10-25 23971 Humboldt 7 mi SW from Ferndale along Old Coast Road to Capetown. 564 Comment
  SEINET11737772  Pseudotsuga menziesii K. S. Erdman 1970-1 4792 Humboldt Redwood National Park near Holter Ridge entrance along Bald Hills Road, SE of Orick Comment
  HSC41283  Pseudotsuga menziesii var. menziesii Brad Klipfel 1974-7-23 473 Humboldt Horse Mountain, NW from the towers Comment
  HSC68606  Pseudotsuga menziesii var. menziesii Jacqueline Greenleaf 1980-8-12 328 Humboldt Near Becker Cabin. 1143 Comment
  HSC74451  Pseudotsuga menziesii var. menziesii Gail Newton 1980-8-10 1991 Humboldt Near Blake Mtn. 1798 Comment
  UC63997  Pseudotsuga menziesii var. menziesii Mrs. M. H. Manning 1902-4-7 Humboldt 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
  UC249782  Pteridium aquilinum var. pubescens Joseph P. Tracy 1923-10-28 6589 Humboldt Bald Mt.; Northern Coast Ranges 762 Comment
  HSC10868  Puccinellia nutkaensis J. A. Waller 1965-5-16 38 Humboldt Humboldt Bay Comment
  UCD92959  Puccinellia pumila Joseph P. Tracy 1938-7-15 16073 Humboldt Mouth of Eel River. Comment
  UCR45348  Pyrola aphylla Barry Silver 1986-5-3 567 Humboldt North Coast Ranges, Forest Road 7N02 to Waterman Ridge, 7 mi from Willow Creek 976 Comment
  CAS-BOT-BC460602  Pyrola aphylla Doris Kildale 1931-5-24 10846 Humboldt Little Laribee, Laribee Valley Comment
  UC562457  Pyrola asarifolia Joseph P. Tracy 1936-6-28 15016 Humboldt Bald Mountain at Lake Prairie 1066 Comment
  CAS-BOT-BC466041  Pyrola picta Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC62632  Quercus chrysolepis Henry M. Pollard 1947-9-1 s.n. Humboldt Somes Mtn. near summit, Orleans region Comment
  HSC99029  Quercus chrysolepis Cara Witte 2008-7-14 891 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. At end of the road. 1407 Comment
  JEPS38040  Quercus chrysolepis Lincoln Constance 1934-6-15 885 Humboldt Summit of Grasshopper Peak South Fork Eel River, Bull Creek Region 975 Comment
  OBI36120  Quercus chrysolepis David J. Keil 1983-7-1 17275 Humboldt 2.5 mi NE of Honeydew along Bull Creek Flats rd Comment
  UC535725  Quercus chrysolepis Eleanor Armstrong 1934-8-22 1183 Humboldt Richardson Grove 121 Comment
  UC54678  Quercus chrysolepis Harley P. Chandler Jun 1901 1435 Humboldt Klamath River North Coast Ranges 304 Comment
  UC54679  Quercus chrysolepis P. E. Goddard 1901-7-12 59 Humboldt Hupa Comment
  UC275589  Quercus garryana Joseph P. Tracy 1924-8-31 6856 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 91 Comment
  UC502986  Quercus garryana Joseph P. Tracy 1928-9-30 8514 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  BLMAR208  Quercus garryana subsp. breweri Jennifer Anthony-Wheeler 1996-7-9 208 Humboldt Pilot ridge., growing as main hardwood component of stand 1280 Comment
  OBI36116  Quercus garryana var. garryana David J. Keil 1983-7-1 17265 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UCSB6966  Quercus kelloggii Muller, Cornelius 1954-6-21 Humboldt Olsen Creek, 2 mi. ESE of Mad River, on road to Forest Glen Comment
  HSC102199  Quercus sadleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1113 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  JEPS49020  Quercus sadleriana Hilda W. Grinnell 1932-7-9 4 Humboldt above Kerlin Creek; South Fork Mt. 1524 Comment
  HSC41254  Quercus vacciniifolia Brad Klipfel 1974-6-25 444 Humboldt Horse Mtn. Comment
  HSC76361  Quercus vacciniifolia Denis Kearns 1981-7-6 54 Humboldt Near Mosquito Lake 1122 Comment
  SBBG111333  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt House Mtn at jct of rd to Grouse Mtn and rd to Horse Mtn Mine 1463 Comment
  UC1135804  Quercus vacciniifolia A. E. Wieslander 1931-5-19 204 Humboldt near Orleans; Klamath Forest, Hoopa Quad. Comment
  UC1196539  Quercus vacciniifolia Joseph P. Tracy 1932-7-18 10721 Humboldt Head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  RSA178538  Quercus wislizeni Joseph P. Tracy 1950-6-15 18796 Humboldt Mail Ridge, north of Harris 7 miles Comment
  UC1196510  Quercus wislizeni Joseph P. Tracy 1938-6-9 15883 Humboldt North Dobbyn Creek Dobbyn Creek 152 Comment
  UC1196264  Ranunculus J. P. Tracy 1902-8-10 1766 Humboldt R. R. Station Immediate vicinity of Eureka 0 Comment
  UC1116206  Ranunculus alismifolius var. alismellus Joseph P. Tracy 1942-6-23 17256 Humboldt near Water-Dog Lakes; Trinity Summit 1828 Comment
  UC1103018  Ranunculus arvensis Joseph P. Tracy 1940-5-17 16554 Humboldt Buck Mountain; lower foothills of nw slope 762 Comment
Read comments
Jun 18 2011
  HSC79359  Ranunculus californicus Kenneth Clark 1980-3-22 521 Humboldt Ridge above Dead Man's Gulch 152 Comment
  UC1196231  Ranunculus occidentalis Joseph P. Tracy 1934-4-8 13173 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC1196234  Ranunculus occidentalis Joseph P. Tracy 1914-5-3 4417 Humboldt corner Harris St. and Broadway (top of Bluff); Northern Coast Region, Eureka 0 Comment
  HSC97644  Ranunculus occidentalis var. occidentalis C. Witte 2007-5-8 12 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  SEINET6908793  Ranunculus occidentalis var. occidentalis Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  SEINET6908794  Ranunculus occidentalis var. occidentalis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  HSC69865  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson 1978-5-28 4089 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC75863  Ranunculus orthorhynchus var. platyphyllus Bill Copeland 1980-6-26 306 Humboldt Near Murphy Meadow 914 Comment
  UCD97062  Ranunculus orthorhynchus var. platyphyllus R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  CDA3482  Ranunculus repens T. C. Fuller 1968-7-3 17442 Humboldt North side of Elk River Road, 2 miles east of Highway 101 freeway, ca. 5 miles south of Eureka. 0 Comment
  HSC64220  Ranunculus uncinatus J. O. Sawyer, M. A. Ericksen 1979-6-23 3381 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC1196270  Ranunculus uncinatus Joseph P. Tracy 1916-5-7 4687 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC38347  Raphanus raphanistrum Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay Comment
  HSC26768  Raphanus raphanistrum Thomas W. Nelson 1970-12-5 317 Humboldt Eureka, 3300 block of Williams St. Comment
  HSC64070  Raphanus sativus J. P. Smith 1971-10-6 4965 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1541476  Rhamnus purshiana Harold E. Parks May 1935 5541 Humboldt Spruce Cove Trinidad Comment
  UC592918  Rhamnus purshiana Carl B. Wolf 1937-8-13 Humboldt 11 mi e Hoopa Valley (onnew road towards Trinity Summit); North Coast Range 1524 Comment
  UC615053  Rhamnus purshiana Beryl O. Schreiber 1934-6-5 1141 Humboldt Gray's Resort Redwood Creek Comment
  HSC36263  Rhododendron columbianum John Rehling 1974-8-20 25 Humboldt Big Lagoon Bog Comment
  SEINET2031087 Image available Rhododendron columbianum Joseph P. Tracy 1924-1 6728 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC56607  Rhododendron macrophyllum Joseph P. Tracy 1906-6-10 2489 Humboldt Kneeland Prairie Road, region about Humboldt Bay 609 Comment
  UC1197790  Rhododendron occidentale Joseph P. Tracy 1913-9-9 4402 Humboldt at Big Lagoon Big Lagoon; Northern Coast Ranges, Big Lagoon 30 Comment
  RSA0062953  Rhododendron occidentale var. californicum C. B. Wolf 1934-7-2 5905 Humboldt 4.5 miles from Snow Camp on road to Bald Mt (Mtns E of Korbel). 1067 Comment
  CAS-BOT-BC433142  Ribes Doris K. Kildale 1927-5-13 3136 Humboldt Redwood Creek at Berry's 289 Comment
  UC667032  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt along Trinity Highway Willow Creek Canyon 762 Comment
  UC902080  Ribes bracteosum Joseph P. Tracy 1948-9-5 18165 Humboldt ne Hawkin's Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1225766  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1941-3-26 16813 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  UC154067  Ribes divaricatum var. pubiflorum Mrs. M. H. Manning Apr. 1902 Humboldt near Hupa Comment
  CAS-BOT-BC168854  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-6 16281 Humboldt Lack Pond, in Trinity River Valley, opposite mouth of Willow Creek 152 Comment
  HSC82210  Ribes inerme var. klamathense Thomas W. Nelson, Jane P. Nelson 1977-5-30 3420 Humboldt Beside State Route 36 just W of Dinsmore at Hwy bridge over Van Duzen River 732 Comment
  UC154125  Ribes inerme var. klamathense Joseph P. Tracy 1908-6 2767 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC168876  Ribes lacustre Joseph P. Tracy 1933-7-16 12784 Humboldt South Fork Mountain, openings in fir forest near McKay Camp 1676 Comment
  HSC103197  Ribes lacustre Jade Paget-Seekins 2010-7-5 38 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  HSC56148  Ribes lacustre G. L. Clifton, Griswold 1979-8-1 11990 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC57642  Ribes lacustre G. L. Clifton, Griswold 1979-7-25 10806 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC173368  Ribes lobbii J. H. Thomas 1949-6-13 912 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  RSA0021131  Ribes lobbii Peter H. Raven, Richard Snow 1958-7-20 13632 Humboldt 12.8 miles southwest of US 299 on Friday Ridge Road to Grouse Mountain, 0.2 miles northeast of Titlow Hill Road junction. Comment
  HSC103200  Ribes marshallii Jade Paget-Seekins 2010-7-5 34 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  HSC90028  Ribes menziesii Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-9 40 Humboldt Blue Lake Rd., 0.7 mi. E of its intersection with Railroad Ave. 76 Comment
  UC1198934  Ribes menziesii Joseph P. Tracy 1918-5-12 4933 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC667055  Ribes menziesii Joseph P. Tracy 1939-3-19 16204 Humboldt Blue Slide Van Duzen River 91 Comment
  UC902109  Ribes menziesii Joseph P. Tracy 1948-3-6 17954 Humboldt Trinidad 60 Comment
  HSC58052  Ribes nevadense G. L. Clifton, Griswold 1979-8-1 11918 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  JEPS49405  Ribes roezlii W. L. Jepson 1932-7-24 16389 Humboldt Mail Ridge 1219 Comment
  CAS-BOT-BC198870  Ribes roezlii var. amictum Joseph P. Tracy 1923-3-17 6159 Humboldt Garberville 121 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
  HSC103225  Ribes roezlii var. cruentum Jade Paget-Seekins 2010-6-23 23 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC55619  Ribes sanguineum Overton, Butler 1979-7-23 9536 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC1541332 Image available Ribes sanguineum Harold E. Parks 1930-5-25 868 Humboldt Laribee Valley 762 Comment
  UCD102487  Ribes sanguineum G. F. Hrusa 1992-5-5 10436 Humboldt Cedar Camp Rd. approximately 10 m. west of Orleans. Mile 9.0. Comment
  UCD13168  Ribes sanguineum N. L. Leman 1973-5-19 148 Humboldt Humboldt CO. State Highway 299, 14 miles west of Willow Creek. On roadside about .7 miles before Titlow Hill Rd. turnoff. Comment
  SFV18511  Ribes sanguineum var. glutinosum M. Cavelti 2002-3-2 4 Humboldt Trinidad State Beach. 20 feet west of steps down to College Cove. 38 Comment
  UC1127604 Image available Ribes sanguineum var. glutinosum R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quadrangle Comment
  UC902090  Ribes sanguineum var. glutinosum Joseph P. Tracy 1948-2-22 17951 Humboldt Table Bluff 91 Comment
  RSA0018243  Ribes sanguineum var. glutinosum Elmer I. Applegate 1923-9-12 3991 Humboldt Stone Lagoon, south of Orick. Comment
  HSC32267  Ribes viscosissimum J. O. Sawyer 1970-6-24 2276 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC58107  Ribes viscosissimum G. L. Clifton, Griswold 1979-8-1 12042 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  RSA168871  Rigiopappus leptocladus Joseph P. Tracy 1950-7-6 18996 Humboldt Two miles south of Burr Valley on the Albee Road. 1159 Comment
  UC660024  Romanzoffia tracyi Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-18 2619 Humboldt ocean bluffs n. of Trinidad 30 Comment
  CAS-BOT-BC74508  Rorippa curvisiliqua Malcom A. Nobs; S. Galen Smith 1949-8-9 1238 Humboldt On southern side of the town of Blue Lake. Comment
  UC1222650  Rorippa curvisiliqua Joseph P. Tracy 1950-7-6 19021 Humboldt 3 mi s Burr Valley (high meadow on w side Buck Mountain, Valley on the Albee Road); high meadow on w side Buck Mountain, s Burr Valley 1158 Comment
  UC14348  Rorippa curvisiliqua W. C. Blasdale 1896-6-8 Humboldt Graham's Comment
  JEPS47283  Rosa eglanteria W. L. Jepson 1936-8-18 17947 Humboldt 1/2 mi nw Petrolia (along a gully in the village) Comment
  CAS-BOT-BC146480  Rosa gymnocarpa Henry M. Pollard 1956-10-11 s.n. Humboldt Near Orleans on trail to Wilder Creek Comment
  HSC45635  Rosa gymnocarpa Diane L. Reed 1978-4-22 32 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC72803  Rosa gymnocarpa Gail Newton 1980-6-16 159 Humboldt Near Monks Camp 109 Comment
  HSC72825  Rosa gymnocarpa M. A. Baker 1980-6-26 2437 Humboldt Near Sims Creek 393 Comment
  UC467683  Rosa gymnocarpa Mrs. M. H. Manning 1901-6-7 61 Humboldt Hupa Comment
  UCD113883  Rosa gymnocarpa T. E. Weier 1942-5-21 s.n. Humboldt Perriot's Redwood Grove, near Dyerville, Highway 101. Comment
  CAS-BOT-BC146838  Rosa nutkana L. R. Abrams; R. Bacigalupi 1922-6-25 8275 Humboldt Big Lagoon south of Orick Comment
  HSC19617  Rosa nutkana A. E. Inman 1962-5-25 Humboldt N bank of Mad River, S of Azalea Hill Rd. Comment
  POM87682  Rosa nutkana L. R. Abrams, R. Bacigalupi 1922-06 8275 Humboldt Big Lagoon S of Orick Comment
  UC12845  Rosa nutkana subsp. macdougalii J. Burtt Davy 1899-6-13 5492 Humboldt along river near Camp Grant; Eel River Comment
  UC1199023  Rosa nutkana var. nutkana Joseph P. Tracy 1924-9-21 6892 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC555675  Rosa pisocarpa subsp. pisocarpa H. L. Mason 1928-7-14 4904 Humboldt near Garberville; East Fork of the Eel River Comment
  UC14221  Rosa spithamea Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  RSA89565  Rubus discolor Philip A. Munz 1954-7-23 19864 Humboldt 5 miles SE of Carlotta Comment
  CAS-BOT-BC147155  Rubus laciniatus Henry M. Pollard 1948-8-7 s.n. Humboldt Near Orleans 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-BC147241  Rubus parviflorus E. A. McGregor 1921-8-17 s.n. Humboldt On old abandoned road grade S.E. of Orick Comment
  CAS-BOT-BC156720  Rubus spectabilis W. R. Dudley 1899-6-21 s.n. Humboldt Engelwood Brook - Eel River Comment
  HSC19683  Rubus spectabilis D. E. Anderson 1962-3-31 1961 Humboldt Old Hwy. 101, E side of Freshwater Lagoon Comment
  HSC19686  Rubus spectabilis D. E. Anderson 1962-2-10 1914 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  CAS-BOT-BC156578  Rubus ulmifolius Joseph P. Tracy 1940-10-17 16762 Humboldt South Fork Station (near Dyerville) 48 Comment
  UC154255  Rubus ursinus J. P. Tracy 1904-7-31 2133 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC154260  Rubus ursinus J. P. Tracy 1909-4-18 2952 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC98908  Rubus ursinus subsp. macropetalus Cara Witte 2007-6-1 172 Humboldt Near intersection of National Forest 1 and Forest Service Road 5N10. 1441 Comment
  HSC55197  Rumex acetosella G. L. Clifton, Griswold 1979-8-2 12297 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC17571  Rumex acetosella D. E. Anderson 1961-9-30 1836 Humboldt Comment
  HSC33748  Rumex acetosella A. Montalvo 1975-5-24 278 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC44539  Rumex acetosella Brad Klipfel 1973-7-15 155 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1735899  Rumex occidentalis Dean W. Taylor 1991-9-15 12292 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  HSC35617  Rupertia physodes Thomas W. Nelson, B. Reinhardt 1975-7-30 2112 Humboldt The road out Whiting Ridge at Whiting Spring Comment
  CAS-BOT-BC454159  Ruppia maritima Robert F. Thorne; P. Everett 1965-8-7 35208 Humboldt Samoa Peninsula: Elev. c. near sea level Comment
  UCD92330  Rytidosperma R. Tofsrud 1946-11-1 33 Humboldt Humboldt County. Comment
  HSC77919  Sagina decumbens subsp. occidentalis L. P. Janeway, Paul Wilson 1984-5-25 818 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  HSC62891  Salicornia depressa J. M. DiTomaso 1979-5-20 1066 Humboldt Eureka Bay 3 mi. SW of Arcata on Samoa Rd. Comment
  CAS-BOT-BC6088  Salix exigua Harold Ernest Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  JEPS14785  Salix exigua Joseph P. Tracy 1933-5-19 12203 Humboldt Alton to Fortuna (Eel River); Northern Coast Region, Eel River 15 Comment
  UC512028  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1330 Humboldt near bridge on Trinity Hwy. Trinity R. 152 Comment
  CAS-BOT-BC106855  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01222 Humboldt 1 mile north of Samoa Comment
  CAS-BOT-BC107710  Salix hookeriana L. R. Abrams 1916-7-18 6127 Humboldt Arcata to Trinidad Comment
  CHSC9658  Salix hookeriana E. L. Smith 1971-8-17 1028 Humboldt Between highway and beach at Trinidad. Comment
  HSC19955  Salix hookeriana H. E. Parks 1931-3-24 914 Humboldt Fortuna, Eel River 10 Comment
  HSC19960  Salix hookeriana H. E. Parks, J. P. Tracy 1931-3-26 905 Humboldt Along lower Van Duzen River Comment
  HSC96609  Salix hookeriana Gordon Leppig 2005-4-8 2211 Humboldt W end of W Hawthorne St., Eureka 3 Comment
  JEPS12912  Salix hookeriana Joseph P. Tracy 1927-4-23 7923 Humboldt mouth of Little River (edge of sand dunes); Northern Coast Ranges 6 Comment
  JEPS12950  Salix hookeriana Joseph P. Tracy 1932-3-19 9787 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  POM362593  Salix hookeriana H. E. Parks 1931-08 1053 Humboldt Little River Lagoon. 0 Comment
  UC1196552  Salix hookeriana Joseph P. Tracy 1939-7-9 16328 Humboldt Snow Camp 1402 Comment
  UC1196629  Salix hookeriana Joseph P. Tracy 1919-3-23 5121 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC1196677  Salix hookeriana Joseph P. Tracy 1927-5-1 7952 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC1196678  Salix hookeriana Joseph P. Tracy 1925-11-15 7316 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay (same region as #6929) 60 Comment
  UC469114  Salix hookeriana Joseph P. Tracy 1931-8-23 9622 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470434  Salix hookeriana Joseph P. Tracy 1931-10-18 9742 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC492343  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1103 a Humboldt Little River Lagoon Trinidad Comment
  UC506505  Salix hookeriana Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC512079  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1225 Humboldt 1 mi n Samoa (in pine barrens near coast) Comment
  UC512099  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1210 b Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC512100  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1210 a Humboldt 4 1/2 mi s Trinidad (Little River Lagoon); Little River Lagoon Comment
  UC512115  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1202 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  HSC48060  Salix lasiandra Thomas W. Nelson 1978-4-23 3888 Humboldt Junction of Copher and Samoa Rds., N of Samoa Comment
  UC249707  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1921-3-27 5427 Humboldt Korbel Northern Coast Ranges, Korbel 30 Comment
  CAS-BOT-BC128190  Salix lasiandra var. lasiandra Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC107601  Salix lasiolepis Joseph P. Tracy; Harold E. Parks 1933-3-19 11006 Humboldt On Van Duzen River, 2 miles west of Bridgeville 228 Comment
  CAS-BOT-BC107611  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-13 1253 Humboldt On gravelly floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107624  Salix lasiolepis Joseph P. Tracy 1932-4-24 9803 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  CAS-BOT-BC107643  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt On open grassy slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  JEPS14752  Salix lasiolepis Joseph P. Tracy 1932-6-4 10128 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  JEPS14769  Salix lasiolepis Joseph P. Tracy 1932-10-8 10867 Humboldt on Trinity Hwy. Berry's Mt. 762 Comment
  UC1225925  Salix lasiolepis Joseph P. Tracy 1942-7-26 17296 Humboldt near Redwood House; South Yager Creek 609 Comment
  UC469432  Salix lasiolepis Joseph P. Tracy 1931-10-3 9701 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC481809  Salix lasiolepis H. P. Bracelin 1931-5-1 269 Humboldt Sylvandale, between Miranda and Meyers South Fork of Eel River Comment
  UC490537  Salix lasiolepis Joseph P. Tracy 1932-7-18 10714 Humboldt head of Brett Hole; Klamath Mts., Trinity Summit 1828 Comment
  UC504025  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1319 Humboldt Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  UC54677  Salix lasiolepis J. P. Tracy 1901-4-7 1011 Humboldt Immediate vicinity of Eureka 0 Comment
  UC709424  Salix lasiolepis Joseph P. Tracy 1941-3-9 16802 Humboldt Camp Grant Eel River (on gravel bar of river) 48 Comment
  CAS-BOT-BC107403  Salix lasiolepis var. lasiolepis Doris K. Kildale 1928-4-29 5958 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC107413  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-3-7 1527 Humboldt Stephens Grove on South Fork of Eel River 60 Comment
  CAS-BOT-BC107420  Salix lasiolepis var. lasiolepis Alice Eastwood 1913-7-3 3416 Humboldt Bear River, McCourtneys Bridge Comment
  SBBG57828  Salix lucida subsp. lasiandra H. E. Parks, J. P. Tracy 1931-5-17 966 Humboldt banks of Willow Crk Comment
  CAS-BOT-BC125612  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt At the junction, the south and north forks of Eel River Comment
  CAS-BOT-BC125625  Salix melanopsis Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River, Alton to Fortuna 15 Comment
  POM89799  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt Mouth of Yager Creek. 30 Comment
  SD909  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC1196569  Salix melanopsis Joseph P. Tracy 1932-5-1 9851 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC469460  Salix melanopsis Joseph P. Tracy 1931-10-18 9740 Humboldt on Eel R. Camp Grant; Northern Coast Ranges, Eel R., Camp Grant 60 Comment
  UC481356  Salix melanopsis Harold E. Parks 1931-5-14 956 a Humboldt Van Duzen R. above Bridgeville; Van Duzen R. 300 Comment
  UC481384  Salix melanopsis Harold E. Parks 1931-3-26 909 Humboldt on Van Duzen R. Alton; Van Duzen R. 15 Comment
  CAS-BOT-BC129207  Salix piperi Doris K. Kildale 1927-5-15 3291 Humboldt Mattole River Valley Comment
  CAS-BOT-BC129151  Salix scouleriana Doris K. Kildale 1927-5-13 3146 Humboldt Redwood Creek at Berry's 289 Comment
  HSC37878  Salix scouleriana Thomas W. Nelson 1976-3-22 2281 Humboldt Cooper's Gulch near Franklin Elementary School Comment
  POM219695  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge. Van Duzen River. 450 Comment
  UC1173623  Salix scouleriana Joseph P. Tracy 1935-3-8 13731 Humboldt alont Trinity Hwy. Willow Creek Canyon 304 Comment
  UC1196694  Salix scouleriana Joseph P. Tracy 1932-10-12 10876 Humboldt along S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 91 Comment
  UC1196700  Salix scouleriana Joseph P. Tracy 1912-2-25 3558 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC481353  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt pine barrens Samoa; Humboldt Bay, Samoa Comment
  CAS-BOT-BC128955  Salix sitchensis Harold E. Parks 1931-3-26 908 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC128959  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1676 Comment
  HSC96575  Salix sitchensis Gordon Leppig 2003-2-20 1805 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  SBBG21982  Salix sitchensis R. F. Thorne 1957-9-2 Humboldt Eel River at Burlington State Park, just S of Weott Comment
  UC1222295  Salix sitchensis Joseph P. Tracy 1950-9-10 19365 Humboldt along coast rd. 1 mi. inland from Cape Mendocino (1/2 mi. s. of town); Foothills of Cape Ridge 60 Comment
  UC146202  Salix sitchensis J. P. Tracy 1905-11-5 2397 Humboldt immediate vicinity Eureka 0 Comment
  UC1239543  Sambucus mexicana Joseph P. Tracy 1932-7-17 10668 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  HSC74427  Sambucus racemosa var. racemosa Gail Newton 1980-8-10 2056 Humboldt Near Blake Mtn. 1707 Comment
  UC902070  Sambucus racemosa var. racemosa Joseph P. Tracy 1949-7-25 18399 Humboldt Trinidad 3 Comment
  HSC12342  Sanguisorba minor Steve Dorei 1970-10-20 112 Humboldt Along Plaza Ave. SW of Laurel Dr. 46 Comment
  UC1199041  Sanguisorba officinalis subsp. microcephala Joseph P. Tracy 1938-9-25 16167 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  HSC21618  Sanicula arctopoides F. B. Plett 1963-3-9 6 Humboldt 1 1/2 mi. N of Trinidad along old Hwy. 101 Comment
  UC154106  Sanicula arctopoides J. P. Tracy 1904-4-24 2021 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  BLMAR57  Sanicula arctopoides Jennifer Anthony-Wheeler 1994-2-24 57 Humboldt Samoa dunes, growing in Samoa Dunes rare plant area in dune mat habitat 12 Comment
  HSC45318  Sanicula arctopoides R. A. Vanbianchi 1972-3-29 129 Humboldt Samoa Peninsula,W side, across from public boat ramp Comment
  HSC38937  Sanicula crassicaulis Linda M. Barker 1976-5-13 1485 Humboldt 3 mi. W of Arcata. Comment
  HSC68612  Sanicula crassicaulis Jacqueline Greenleaf 1980-7-16 245 Humboldt Near Buck Mountain. 1250 Comment
  HSC74740  Sanicula crassicaulis Gail Newton 1981-8-5 2361 Humboldt Near Bug Creek, E Fork. 820 Comment
  UC1222746  Sanicula crassicaulis Joseph P. Tracy 1950-7-6 19023 Humboldt 3 mi s of Burr Valley (Sproston's Place); Sproston's Place 1066 Comment
  UC1222810  Sanicula crassicaulis Joseph P. Tracy 1950-2-12 18601 Humboldt 5 mi e of town of Carlotta (near Riverside Park) 30 Comment
  POM160882  Sanicula graveolens Joseph P. Tracy 1926-5-30 7520 Humboldt Willow creek canyon, local in serpentine formation near Ruby Cr. 610 Comment
  HSC68625  Sanicula tracyi Jacqueline Greenleaf 1980-7-16 239 Humboldt Near Buck Mtn. 1250 Comment
  HSC99063  Sanicula tuberosa C. Witte 2007-5-8 2 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  HSC99066  Sanicula tuberosa C. Witte 2007-5-18 40 Humboldt Grouse Mountain Lookout. 1644 Comment
  JEPS47546  Saxifraga californica Joseph P. Tracy 1927-4-10 7896 Humboldt near South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA24203  Saxifraga mertensiana Carl B. Wolf 1941-3-2 9991 Humboldt N Coast Range. 2 miles S of Honeydew along Honeydew Creek. 152 Comment
  UC154143  Saxifraga mertensiana Mrs. M. H. Manning 1902-3 Humboldt near Hupa Comment
  SEINET6168250  Saxifraga mertensiana J. P. Tracy 1911-6-4 3217 Humboldt Northern coast region, along Little River, 5 miles from the coast 122 Comment
  HSC101990  Saxifraga nidifica M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 889 Humboldt Patterson Meadows 1555 Comment
  HSC7442  Schoenoplectus americanus R. L. Jarvis 1962-4-29 37 Humboldt Stone Lagoon, 3 mi. S of Orick 0 Comment
  CHSC69506  Schoenoplectus pungens Vernon Oswald; Lowell Ahart 1997-9-4 8848 Humboldt North Coast Region. Big Lagoon County Park at the southwest edge of Big Lagoon. Meadowy area bordering a small drainage entering the lagoon at the boat ramp. 3 Comment
  CAS-BOT-BC111701  Schoenoplectus pungens var. badius Joseph Prince Tracy 1927-9-25 8368 Humboldt Common in damp ground near bay shore. 6 Comment
  UC963872  Scirpus cernuus H. E. Parks and S. T. Parks August, 1943 24244 Humboldt Spruce Cove North Coast Ranges, , Trinidad (Trinidad) 60 Comment
  HSC7273  Scirpus microcarpus R. S. White 1965-5-18 87 Humboldt 0.5 mi. off Hwy. 101 on road to Crannel Comment
  RSA167281  Scirpus microcarpus Joseph P. Tracy 1949-9-1 18533 Humboldt Trinity River Valley, at Willow Creek: Dusky s Spring 152 Comment
  CAS-BOT-BC517415  Scoliopus bigelovii Doris K. Kildale 1926-2-28 1520 Humboldt Kneeland Prairie Road at the watering trough 609 Comment
  HSC59709  Scoliopus bigelovii Clark L. Miller 1979-5-13 1128 Humboldt E of Hwy. 101 from Seawood Drive Comment
  UC1103134  Scribneria bolanderi Joseph P. Tracy 1932-6-26 10275 Humboldt North Coast Ranges, Fort Baker Ranch Fort Baker Ranch Fort Baker Ranch; North Coast Ranges, Fort Baker Ranch 762 Comment
  HSC21127  Scrophularia californica R. I. Bonn 1965-5-9 44 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  RSA425152  Scrophularia californica Bonnie C. Templeton 1964-6-13 10088 Humboldt Trinidad Head, near Lighthouse Point. Comment
  UC1239707  Scutellaria antirrhinoides Joseph P. Tracy 1930-7-23 9123 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1432 Comment
  UC1239708  Scutellaria antirrhinoides Joseph P. Tracy 1935-6-23 13966 Humboldt French Camp Ridge 1066 Comment
  UCD125670  Scutellaria antirrhinoides K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  UC577314  Scutellaria californica Joseph P. Tracy 1937-7-19 15453 Humboldt Buck Mountain 914 Comment
  UC577321  Scutellaria californica Joseph P. Tracy 1936-6-27 15004 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges, , South Fork Eel River 121 Comment
  UC1222179  Sedum Joseph P. Tracy 1950-6-8 18715 Humboldt bluffs at the Sand Cut Wildcat Road 2 mi s Ferndale; s of Ferndale 304 Comment
  HSC59361  Sedum laxum subsp. heckneri M. A. Baker 1979-7-8 621 Humboldt 2 km S of the junction of the roads to Blue Creek Mtn. and Onion Lake 1400 Comment
  UC302106  Sedum laxum subsp. heckneri Joseph P. Tracy 1926-6-20 7647 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC63231  Sedum obtusatum subsp. retusum M. A. Baker 1979-7-10 Humboldt 9.5 km E of Berry Summit along Hwy. 299 or Willow Creek, N bank of Willow Creek Comment
  UC14450  Sedum radiatum Chestnut and Drew 1888-7-9 Humboldt Campbell's Comment
  CAS-BOT-BC63824  Sedum spathulifolium L. E. Smith 1913-4-2 s.n. Humboldt Between Pitt and Hermit. Comment
  JEPS25692  Sedum spathulifolium P. C. Hutchison 1961-5-22 2017 Humboldt along s side Willow Creek (n side hiway US 299, 2.6 mi e of Berry Summit); e of Berry Summit, s side Willow Creek Comment
  HSC71086  Sedum stenopetalum Thomas W. Nelson, Jane Nelson 1977-5-30 3405 Humboldt Large rock downstream from Anderson's Ford 640 Comment
  UC1776736  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt in redwood forest behind Humboldt State Universiy, at base of stump near Fern Lake spillway Arcata 48 Comment
  UC211248  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt near Korbel; Northern Coast Ranges 60 Comment
  CHSC79937  Selaginella wallacei L. P. Janeway 1996-8-4 5061 Humboldt High North Coast Ranges. Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain. 1341 Comment
  POM182453  Selaginella wallacei Joseph P. Tracy 1912-7-26 3850 Humboldt Kneeland Prairie. 762 Comment
  CAS-BOT-BC69740  Selaginella wallacei Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  HSC43159  Selaginella wallacei R. Sutherland 1976-8-24 2 .24876 Humboldt 543 Comment
  HSC33721  Senecio elegans B. Sullivan 1975-5-24 106 Humboldt Off Samoa Blvd. across from the boat landing Comment
  CAS-BOT-BC364019  Senecio integerrimus var. major Doris Kildale 1931-5-10 10583 Humboldt Snow Camp Comment
  CAS-BOT-BC364022  Senecio integerrimus var. major Doris K. Kildale 1928-5-19 5173 Humboldt Chalk Mountain Comment
  CAS-BOT-BC364015  Senecio integerrimus var. major Duart V. Brown 1947-4-2 29 Humboldt Near Sweed [Sweet] Creek, Trinity River 457 Comment
  UC581705  Senecio integerrimus var. major Joseph P. Tracy 1930-7-18 9064 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC917220  Senecio minimus J. M. Tucker 1948-9-4 1863 Humboldt Becks Ranch, Hydesville Comment
  UC1199238  Senecio sylvaticus Harold E. Parks and Joseph P. Tracy 1934-6-27 11034 Humboldt Redwood Creek at Berry's; Redwood Creek at Berry's 274 Comment
  UC249833  Senecio triangularis Joseph P. Tracy 1924-7-4 6702 Humboldt Snow Camp , Snow Camp (Northern Coast Ranges) 1371 Comment
  UC1199237  Senecio vulgaris Joseph P. Tracy 1918-4-21 4880 Humboldt on old Kneeland Prairie Road near Newell's Camp (around Humboldt Bay); Northern Coast Ranges, around Humboldt Bay 304 Comment
  BLMAR59  Senecio vulgaris Jennifer Anthony-Wheeler 1994-3-17 59 Humboldt Samoa/manilla dunes, growing alongside OHV trail on S.end of BLM prop 12 Comment
  HSC98210  Sequoia sempervirens Gordon Leppig 1999-7-9 1189 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  NY64506  Sequoia sempervirens A. Kellogg 1868-1 940 Humboldt Humboldt Comment
  SEINET11739295  Sequoia sempervirens R. J. Mastrogiuseppe 1966-1 s.n. Humboldt Founders' Grove, Humboldt Redwoods State Park Comment
  UC180191  Sericocarpus oregonensis subsp. oregonensis Joseph P. Tracy 1914-9-6 4620 Humboldt Bald Mountain, between High Prairie and Snow camp Bald Mountain 1066 Comment
  RSA44417  Setaria pumila Henry M. Pollard 1947-8-19 s.n. Humboldt Klamath River near Wilson Creek, Orleans region Comment
  POM203228  Sherardia arvensis M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  UC168950  Sherardia arvensis Joseph P. Tracy 1899-5-27 214 Humboldt Eureka Northern Coast Region (on Russ Claim) 0 Comment
  CAS-BOT-BC205566  Sidalcea malachroides Joseph Burtt Davy; Walter C. Blasdale 1899-6-13 5482 Humboldt Camp Grant Comment
  UC1197967  Sidalcea malachroides Joseph P. Tracy 1918-6-9 4952 Humboldt at Eureka; Northern Coast Ranges, at Eureka 0 Comment
  UC668135  Sidalcea malachroides Joseph P. Tracy 1938-6-7 15860 Humboldt 5 mi se Korbel; Canyon Creek 152 Comment
  HSC73172  Sidalcea malviflora M. A. Baker 1980-5-18 1350 Humboldt Near Black Mtn. 792 Comment
  SEINET11982179  Sidalcea malviflora J. P. Tracy 1950-1 18738 Humboldt 7 mi S of Ferndale, Bear River Ridge 610 Comment
  RSA12518  Sidalcea malviflora subsp. asprella Carl B. Wolf 1934-7-3 5918 Humboldt 21 miles from Orick on Weitchpec Rd. common. 152 Comment
  JEPS109836  Sidalcea malviflora subsp. patula Dean W. Taylor 2005-6-10 19343 Humboldt Bear River Ridge, along the Mattole Road 3 road miles North (uphill) from Capetown 335 Comment
  RSA168955  Sidalcea malviflora subsp. patula Joseph P. Tracy 1950-6-8 18734 Humboldt Bear River Ridge, 7 miles south of Ferndale. 610 Comment
  UC1197968  Sidalcea oregana subsp. eximia Joseph P. Tracy 1932-9-16 10800 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  HSC57901  Sidalcea oregana subsp. spicata Gilbert Muth 1979-7-31 11492 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  UC1198353  Silene californica Joseph P. Tracy 1938-7-7 16040 1/2 Humboldt Grouse Mountain 1524 Comment
  RSA46875  Silene californica Doris K. Kildale 1927-7-22 3816 Humboldt Lasseck s Peaks Comment
  RSA47144  Silene californica Doris K. Kildale 1925-7-2 900 Humboldt Table Bluff - bluff on coast. Comment
  CHSC110703  Silene campanulata subsp. campanulata Dean Wm. Taylor 2004-6-24 19130 Humboldt North Coast Range, Horse Mountain, along Titlow Hill road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  HSC104081  Silene campanulata subsp. glandulosa S. Carothers 2001-6-20 Humboldt Six Rivers National Forest; Lassics Botanical Area, below Rd. 1S11 1579 Comment
  CAS-BOT-BC387077  Silene gallica Doris K. Kildale 1928-5-30 6037 Humboldt mouth of Lindsey Creek Comment
  UC1225793  Silene grayi Joseph P. Tracy 1947-7-9 17851 Humboldt Horse Mountain 1432 Comment
  BLMAR151  Silene laciniata subsp. californica Donald Hazlett 1994-6-7 151 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC4164  Silene laciniata subsp. californica D. E. Anderson 1965-5-15 3709 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC4175  Silene laciniata subsp. californica Lincoln Constance 1934-6-1 770 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  HSC98162  Sisyrinchium bellum Brad Klipfel 1973-4-28 12 Humboldt Along Canyon Creek Comment
  SEINET4171044  Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt Hillside, 3 miles north and 1 mile west of Fernbridge 33 Comment
  SEINET6883434  Sisyrinchium bellum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles sou theast of Kneeland. Comment
  UC666973  Smilacina racemosa Joseph P. Tracy 1938-6-13 15908 Humboldt Horse Mountain 1432 Comment
  UC666976  Smilacina racemosa Joseph P. Tracy 1932-7-12 10463 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  UC1197803  Smilacina racemosa Joseph P. Tracy 1927-6-12 8150 Humboldt Horse Mountain; below top of mt. 1280 Comment
  JEPS62151  Smilacina stellata Lincoln Constance 1934-6-2 783 Humboldt Bull Cr. road to mouth of Bull Cr. (and up creek); South Fork Eel River, Bull Creek Region Comment
  UC750870  Solanum furcatum E. F. Paddock 1947-7-13 163 Humboldt Trinidad, near boat landing Trinidad Comment
  UC585974  Solanum umbelliferum Joseph P. Tracy 1924-5-4 6668 Humboldt 6 mi w of Bridgeville (Van Duzen River); Van Duzen River 121 Comment
  RSA473662  Solidago canadensis subsp. elongata M. B. Dunkle 1936-8-18 4812 Humboldt Fortuna. Comment
  HSC56455  Solidago elongata Griswold, Butler 1979-7-12 7232 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC57941  Solidago elongata G. L. Clifton, Griswold 1979-7-31 11610 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC1223178  Solidago elongata Joseph P. Tracy 1948-9-12 18210 Humboldt head of meadow at Box Camp; Trinity Summit, meadow at Box Camp 1463 Comment
  UC165212  Solidago elongata Joseph P. Tracy 1901-8-2 1249 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC36246  Solidago elongata C. C. Marshall 1886-1 Humboldt Comment
  UC535089  Solidago elongata H. E. Parks 1931-7 1056 Humboldt Trinidad 76 Comment
  UC581769  Solidago elongata Joseph P. Tracy 1937-8-12 15654 Humboldt Snow Camp 1402 Comment
  SEINET6417801 Image available Solidago occidentalis S. K. Harris, C. Wilder 1938-9-7 879 Humboldt Van Dusen River, above Blue Slide Comment
  JEPS120527  Solidago spathulata B. Castro and L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site; on other side of South Spit Road from the Humboldt Bay mudflats. Comment
  LA204224  Solidago spathulata S. K. Harris; 1939-9-5 990 Humboldt Samoa Comment
  UCR122358  Solidago spathulata var. spathulata George K. Helmkamp, E. A. Helmkamp 2001-7-8 7023 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  CAS-BOT-BC364969  Solidago velutina subsp. californica Carl D. Duncan 1920-9-22 s.n. Humboldt On bank of Trinity River, Hoopa Valley Comment
  UC1199365  Sonchus asper Joseph P. Tracy 1935-5-19 13809 Humboldt near Myers (South Fork Eel River, North Coast Ranges); North Coast Ranges, South Fork Eel River 91 Comment
  HSC67888  Sonchus oleraceus J. P. Smith 1973-5-26 6862 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1198764  Sorbus scopulina var. scopulina Joseph P. Tracy 1935-7-28 14310 Humboldt Ridges e of Corral Prairie; Trinity Summit 1828 Comment
  POM312952  Sparganium angustifolium subsp. emersum S. Galen Smith, Malcolm A. Nobs 1949-8-9 1228 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  HSC97446  Sparganium emersum Ivy Watson 2008-10-5 35 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  RSA640443  Spartina Avis Keedy 1988-9-18 8 Humboldt On Jolly Giant Creek near mouth. Arcata Salt Marsh Project. Comment
  HSC90229  Spartina densiflora L. Watson, J. Meninga Aug 1990 11 Humboldt Near Manila, Mad River Slough and Dunes, 200 yds. N of parking lot Comment
  HSC4234  Spergula arvensis D. E. Anderson 1961-9-13 1823 Humboldt Comment
  CHSC57426  Spergularia rubra L. P. Janeway 1984-6-23 895 Humboldt Titlow Hill. Prairie on ridgetop. 1478 Comment
  HSC27018  Spiraea douglasii Brad Klipfel 1973-8-9 267 Humboldt Big Lagoon County Park Comment
  HSC97923  Spiraea douglasii Cara Witte 2007-6-19 291 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  UC180171  Spiraea douglasii Joseph P. Tracy 1914-9-6 4604 Humboldt Bald Mountain Northern Coast Ranges (between High Prairie and Snow Camp, toward Snow Camp) 1219 Comment
  HSC36653  Spiranthes romanzoffiana J. D. Ackerman 1975-8-2 618 Humboldt Hwy. 101 between Eureka and Arcata, along Humboldt Bay across from Murray Field. Comment
  BLMAR221  Spiranthes romanzoffiana Jennifer Anthony-Wheeler 1996-7-26 221 Humboldt King range, growing with annual & perrenial grasses 91 Comment
  HSC28141  Spiranthes romanzoffiana J. D. Ackerman 1973-8-29 119 Humboldt Big Lagoon Beach Co. Park, 8 mi. N of Trinidad Comment
  UC666993  Spiranthes romanzoffiana Joseph P. Tracy 1934-7-21 13477 Humboldt near Samoa (edges of dunes); Humboldt Bay 6 Comment
  UC666996  Spiranthes romanzoffiana Joseph P. Tracy 1937-8-22 8341 Humboldt near High Prairie; Bald Mountain 1066 Comment
  UC668222  Stachys ajugoides var. ajugoides Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 18 Comment
  JEPS63065  Stachys ajugoides var. rigida W. L. Jepson 1932-7-26 16418 Humboldt Bull Creek 106 Comment
  UC1239733  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-9 14881 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC668215  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 A Humboldt Valley of South Yager Creek 762 Comment
  UCLA71134  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park Comment
  UCLA71161  Stachys ajugoides var. rigida C. Epling Aug 1933 Humboldt near Humboldt Co. line (Weaverville-Arcata Road) Comment
  JEPS63026  Stachys chamissonis Joseph P. Tracy 1940-9-26 16726 Humboldt Eureka 3 Comment
  HSC45596  Stachys mexicana Diane L. Reed 1978-5-27 139 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  UC8638  Stellaria borealis subsp. sitchana Harley P. Chandler May 1901 1178 Humboldt Humboldt Bay; North Coast Ranges Comment
  UC1223446  Stellaria borealis subsp. sitchana Joseph P. Tracy 1950-7-6 19020 Humboldt 3 mi s Burr Valley (w side Buck Mountain); Buck Mountain 1158 Comment
  UC161060  Stellaria crispa Joseph P. Tracy 1906-5-6 2438 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC91609  Stellaria media E. Mackey 1987-1-17 Humboldt Patricks Point State Park, near Wedding Rock. Comment
  UC161055  Stellaria media Joseph P. Tracy 1907-5-20 2562 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC89600  Stellaria media M. Roantree 1985-4-28 24 Humboldt E side of Trinidad Head, along dirt road Comment
  HSC35704  Stephanomeria virgata Thomas W. Nelson, B. Reinhardt 1975-7-30 2120 Humboldt Beside private road to Pilot Rock Comment
  HSC97388  Stipa lepida G. N. Bos 1965-5-15 279 Humboldt Berry Summit near Hwy. 299 Comment
  HSC98184  Stipa occidentalis var. californica R. D. Rogers 1964-5-15 28 Humboldt Rousseau Ranch, 18 mi. SE of Arcata. Comment
  RSA43850  Streptanthus tortuosus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1677 Comment
  UC229826  Streptanthus tortuosus Joseph P. Tracy 1922-9-3 6106 Humboldt rocky bluffs at Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  UC673071  Streptanthus tortuosus Joseph P. Tracy 1940-7-7 16667 Humboldt rocky banks Grouse Mt. 1463 Comment
  UCD116417  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt south of airport, about 5 miles east of Kneeland. Comment
  UC302044  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-6-6 7554 Humboldt on road w from Hoopa to Bair's near summit; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC552237  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1933-7-16 12790 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC57457  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-26 10288 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC58158  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-8-2 12218 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC58078  Streptopus amplexifolius G. L. Clifton, Griswold 1979-8-1 11980 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC58336  Streptopus amplexifolius Overton, Butler 1979-8-2 12644 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC519056  Streptopus amplexifolius Greg de Nevers 2001-4-19 12257 Humboldt Fern Canyon, Prairie Creek, Redwoods State Park 91 Comment
  UC1103499  Streptopus amplexifolius var. americanus Joseph P. Tracy 1926-6-6 7584 Humboldt head of Pine Creek (Hoopa Mountain, near summit of road w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC175818  Streptopus amplexifolius var. americanus Joseph P. Tracy 1912-8-1 3956 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC102070  Suksdorfia ranunculifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 972 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UCR198251  Symphoricarpos albus Dean Kelch 2007-7-25 07- 506 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  HSC99624  Symphoricarpos albus var. laevigatus Thomas W. Nelson, James Nelson 1975-9-3 2196 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  BLMAR248  Symphoricarpos mollis Jennifer Anthony-Wheeler 1997-7-24 248 Humboldt Lacks Creek, growing beneath conifer canopy 1219 Comment
  UCD137442  Symphoricarpos mollis Joseph P. Tracy 1948-8-15 18144 Humboldt Trinity Summit. On ridge 2 miles east of Grove's Prairie. 1524 Comment
  CAS-BOT-BC99165  Symphyotrichum chilense Carl B. Wolf 1927-8-29 1201 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, Mt. Glen Comment
  HSC57206  Symphyotrichum spathulatum var. spathulatum Griswold, Butler 1979-7-12 7163 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CDA5590  Symphytum asperum T. C. Fuller 1961-9-28 7047 Humboldt Iverson property, Arcata Bottoms, 0.5 mile south of the Mad River, 0.75 mile west of Highway 101, 2 miles north of Arcata. 0 Comment
  UC1359832  Symphytum asperum Johnnie L. Gentry Jr. and Earl Jensen 1968-7-5 2120 Humboldt on Tompkins Hill Rd. s. of Eureka (ca. 2 mi. e. of Hwy. junction U.S. 101 and Tompkins Hill Rd.) 30 Comment
  HSC21151  Synthyris reniformis D. E. Anderson 1963-3-23 2399 Humboldt Bald Mtn. Rd. Comment
  UC582545  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 Humboldt East Fork of Willow Creek Canyon]; Northern Coast Ranges 457 Comment
  CAS-BOT-BC221913  Taeniatherum caput-medusae F. A. Weatherbee 1960-6-22 s.n. Humboldt Ft. Baker Ranch, Eureka Comment
  SEINET3816603  Tanacetum bipinnatum J. P. Tracy 1901-8-7 1269 Humboldt Sand hills of ocean beach at Samoa, opp eureka Comment
  SEINET3816604  Tanacetum bipinnatum Bassett Maguire 1934-6-9 15318 Humboldt On sand dunes, clam beach, 15 miles from North Eureka Comment
  CAS-BOT-BC376728  Tanacetum bipinnatum Peter H. Raven 1962-8-31 18078 Humboldt 1.2 miles south of Orrick [Orick] Comment
  HSC6249  Tanacetum bipinnatum R. L. Jarvis 1962-4-29 40 Humboldt Freshwater Lagoon, 1 mi. S of Orick on Hwy. 101 0 Comment
  UC1199290  Tanacetum camphoratum J. P. Tracy 1901-8-7 1269 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  UC727173  Tanacetum camphoratum A. A. Heller 1924-7-23 13875 Humboldt Little River Comment
Read comments
Sep 29 2006
  CDA8898  Tanacetum camphoratum Clayton 1956-5-7 Humboldt Samoa Road 200 yards south of Fairhaven. 0 Comment
  RSA18773  Tanacetum camphoratum P. A. Munz 1954-7-25 19869 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  CAS-BOT-BC376776  Tanacetum parthenium Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Pepperwood Comment
  HSC100449  Taraxacum dens-leonis Carl C. Marshall Mar 1886 136 Humboldt Everywhere. Comment
  UC1223046  Taraxacum officinale Joseph P. Tracy 1951-6-24 19542 Humboldt Ashland Ridge Kneeland Prairie 762 Comment
  UC1223145  Taraxacum officinale Joseph P. Tracy 1943-4-10 17415 Humboldt Eureka Comment
  UC1196936  Taraxia ovata Joseph P. Tracy 1942-5-16 17343 Humboldt w side of river near Garberville; S. Fork of Eel River 152 Comment
  CAS-BOT-BC85218  Taxus brevifolia Doris K. Kildale 1926-8-15 2503 Humboldt Willow Creek Canyon 769 Comment
  UC502917  Taxus brevifolia Joseph P. Tracy 1927-3-27 7865 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  SJSU685  Taxus brevifolia A. W. Jacobs 1941-6-15 Humboldt border of road (Hwy 299) between Blue Lake & Redwood Creek Comment
  HSC20422  Tellima grandiflora D. A. Shally 1965-5-15 47 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  RSA120721  Tellima grandiflora S. S. Tillett 1956-7-5 604 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  UC503058  Thelypteris nevadensis Joseph P. Tracy 1932-7-20 10743 Humboldt Trinity Summit; Klamath Mts. 1371 Comment
  UC1190156  Thuja plicata Ira L. Wiggins 1955-7-31 13594 Humboldt 9 mi e of Arcata (hillside, along Highway 299); Highway 299 316 Comment
  HSC41607  Tiarella trifoliata D. E. Anderson, J. P. Smith 1971-6-18 - 1054 Humboldt 1 mi. W of Lord Ellis Summit Comment
  HSC70508  Tiarella trifoliata var. unifoliata Gail Newton 1980-7-20 1608 Humboldt Near Bell Swamps 9 Comment
  HSC98749  Tiarella trifoliata var. unifoliata Cara Witte 2008-7-7 841 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  CAS-BOT-BC436912  Tiarella trifoliata var. unifoliata Carl B. Wolf 1927-8-21 765 Humboldt In Stephen's Grove Comment
  HSC98858  Tiarella trifoliata var. unifoliata Cara Witte 2008-7-30 976 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  RSA151820  Tiarella trifoliata var. unifoliata H. K. Sharsmith, Francia Chisaki 1959-8-22 4753 Humboldt At Happy Camp. Just over Trinity County line. 915 Comment
  UC1212146  Tiarella trifoliata var. unifoliata Francia Chisaki and Helen K. Sharsmith 1959-8-22 4753 Humboldt bog at Happy Camp Happy Camp (just over Trinity County line); Inner North Coast Ranges 914 Comment
  SEINET3888616  Tofieldia occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt Snow Camp (Mts. E. of Korbel). Near small lake.; 0 1372 Comment
  HSC60125  Tolmiea diplomenziesii M. A. Baker 1978-5-20 556 Humboldt Hoopa Indian Reservation Comment
  HSC97516  Tolmiea diplomenziesii Kay Izlar 2001-3-24 7 Humboldt HSU forest along Jolly Giant Creek 43 Comment
  RSA167305  Tolmiea menziesii Joseph P. Tracy 1950-7-15 19040 Humboldt Mouth of Raccoon Creek, 1 mile northeast of Patterson s Ranch, vicinity of Willow Creek. Comment
  HSC74665  Tonella tenella Gail Newton 1981-6-6 2189 Humboldt Near Pilot Ridge Trail 1314 Comment
  UC147887  Tonella tenella Joseph P. Tracy 1906-5-6 2442 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC906658  Torilis nodosa Joseph P. Tracy 1946-6-15 17558 Humboldt Berry's Mountain on Trinity Highway east of Redwood Creek 609 Comment
  CAS-BOT-BC517422  Triantha occidentalis subsp. occidentalis L. B. Kildale 1930-8-10 10528 Humboldt Snow Camp, head of Redwood Creek Comment
  UC32547  Trichostema laxum Chestnut and Drew 1888-7-12 Humboldt Campbell's Comment
  HSC53982  Trichostema oblongum Griswold, Butler 1979-7-11 7057 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC175495  Trichostema oblongum Joseph P. Tracy 1912-7-31 3945 Humboldt Buck Mountain, near the summit Northern Coast Ranges 1676 Comment
  HSC45274  Trientalis latifolia Brad Klipfel 1973-4-28 8 Humboldt Along Korbel to Maple Creek Rd., Canyon Creek Comment
  UC1561370  Trientalis latifolia Barbara Ertter with Thomas J. Delendick 1987-5-16 6942 Humboldt 3 mi e of Berry Summit (on Hwy 299, 20 air mi e of Arcata, on s side of road above Willow Creek); Hwy 299 243 Comment
  RSA318958  Trifolium Patricia Wilder 1968-8-21 4373 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  BLMAR717  Trifolium albopurpureum Jennifer Wheeler 2011-5-20 717 Humboldt King range, near strawberry rock 7 Comment
  SBBG122678  Trifolium arvense J. Dittes, J. Guardino 2003-6-7 2003 -65 Humboldt entrance rd to Aikens Crk Cmpgrd, ca. 4.1 air-mi NE of confluence of Trinity River and Klamath River, ca. 0.3 air-mi NW of confluence of Klamath River and Aikens Crk 106 Comment
  SEINET6934960  Trifolium dichotomum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  HSC39836  Trifolium dubium Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  HSC70358  Trifolium dubium M. A. Baker 1980-6-7 1867 Humboldt Near Ammon Creek 732 Comment
  POM313548  Trifolium dubium P. B. Kennedy 1929-6-12 10323 Humboldt Eureka. Comment
  UC1542872  Trifolium dubium Harold E. Parks May 1934 4324 Humboldt Spruce Cove Trinidad Comment
  UC179921  Trifolium dubium Joseph P. Tracy 1914-7-4 4522 Humboldt between Korbel and Angels Ranch roadside; Northern Coast Ranges Comment
  HSC45105  Trifolium dubium R. Sutherland 1978-5-17 2 .17578 Humboldt 305 Comment
  POM214888  Trifolium eriocephalum subsp. eriocephalum Joseph P. Tracy 1930-7-6 8835 Humboldt Kneeland Prairie. Comment
  RSA168898  Trifolium fragiferum Joseph P. Tracy 1933-8-22 12986 Humboldt Not seen elsewhere, moist field near wet slough 1 miles W of Loleta. Comment
  HSC45123  Trifolium fucatum R. Sutherland 5 .19578 Humboldt 128 Comment
  JEPS65891  Trifolium fucatum Joseph P. Tracy 1923-5-13 6203 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  RSA168897  Trifolium fucatum var. fucatum Joseph P. Tracy 1938-6-17 15950 Humboldt Cape Mendocino, near ocean shore, south of point of the Cape. Comment
  HSC45169  Trifolium hirtum R. Sutherland 1978-5-13 1 .13578 Humboldt 285 Comment
  UC1223452  Trifolium howellii Joseph P. Tracy 1934-7-18 13449 Humboldt at top Grouse Mtn 1524 Comment
  POM214887  Trifolium longipes subsp. hansenii Joseph P. Tracy 1930-6-8 8726 Humboldt Kneeland Prairie. Comment
  HSC44836  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3520 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  HSC76223  Trifolium longipes subsp. oreganum Overton, Butler 1979-7-24 9763 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC302112  Trifolium longipes var. oreganum Joseph P. Tracy 1926-6-20 7608 Humboldt Horse Mtn North Coast Ranges Comment
  HSC15218  Trifolium macraei J. W. Johnson 1961-5-27 1386 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  UC1602107  Trifolium microcephalum Joseph P. Tracy 1922-4-30 6022 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC160906  Trifolium microcephalum Joseph P. Tracy 1910-6-5 3144 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  CDA28005  Trifolium microdon E. C. Whitney 1978-5-25 Humboldt Art Tooby property, Harris. 0 Comment
  HSC45145  Trifolium microdon R. Sutherland 1978-5-24 3 .24578 Humboldt Mckee Flat 287 Comment
  UC1103443  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5460 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  JEPS66013  Trifolium oliganthum Milo S. Baker 5560 Humboldt s Garberville Comment
  UC1541586  Trifolium pratense W. K. Parks July 1932 Humboldt near Trinidad (fields) Comment
  RSA43865  Trifolium pratense H. M. Pollard 1947-8-9 s.n. Humboldt Roadside west of Orleans Comment
  UC1197046  Trifolium repens J. P. Tracy 1901-5-8 1073 Humboldt immediate vicinity of Eureka 0 Comment
  UC1223324  Trifolium repens Joseph P. Tracy 1936-6-28 15021 Humboldt at Lake Prairie Bald Mtn 1066 Comment
  HSC77397  Trifolium repens C. J. Thomas 1983-5-9 30 Humboldt 23 Comment
  UCSC000416  Trifolium variegatum H. S. Yates 1936-6-18 5733 Humboldt 2 miles N. of Big Lagoon - Rocky Pt. 30 Comment
  UCD109495  Trifolium variegatum var. major W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  UC1223321  Trifolium variegatum var. melananthum Joseph P. Tracy 1935-5-25 13861 Humboldt Fort Seward 106 Comment
  UC160946  Trifolium variegatum var. melananthum J. P. Tracy 1900-5-22 820 Humboldt Eureka vicinity 0 Comment
  HSC45126  Trifolium willdenovii R. Sutherland 1978-5-19 7 .19578 Humboldt 131 Comment
  UC1223318  Trifolium willdenovii Joseph P. Tracy 1942-5-16 17358 Humboldt 1 mi ne Garberville (on rd to Harris) 304 Comment
  UC160943  Trifolium willdenovii Joseph P. Tracy 1903-5-24 1910 Humboldt Alder Point Northern Coast Ranges (Eel River) 152 Comment
  UC1197039  Trifolium wormskioldii Joseph P. Tracy 1927-6-18 8174 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  POM349599  Trifolium wormskioldii J. P. Smith, Thomas W. Nelson 1977-6-30 9207 Humboldt Samoa Peninsula just east of the drag strip. Comment
  JEPS101255  Triglochin maritima Dean W. Taylor 1991-9-15 12291 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  RSA32656  Triglochin maritima Doris K. Kildale 1927-7-10 3740 Humboldt Big Lagoon Comment
  HSC14169  Triglochin maritima D. E. Anderson 1961-9-3 1779 Humboldt Along Hwy. 101 Comment
  HSC24377  Trillium ovatum J. O. Sawyer 1970-6-24 2278 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC37360  Trillium ovatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 490 Humboldt Along Lost Man Creek. 38 Comment
  HSC47579  Trillium ovatum Sheila Logan 1978-4-10 175 Humboldt Redwood Park behind HSU campus Comment
  POM117306  Trillium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC34646  Trillium ovatum Peter R. Leinau 1975-4-5 1 Humboldt Block 11 of the Union St. addition to the city of Arcata, 1640 Union St. 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
  SDSU11980  Trillium ovatum W. A. Bemis 1964-3-14 247 Humboldt 48 Comment
  CAS-BOT-BC521319  Trillium rivale Volney Rattan 1883-6-1 s.n. Humboldt Willow Creek; Pacific Coast Comment
  SEINET12051358  Trillium rivale F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -294 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  SEINET10458960  Triodanis biflora Chandler CHANDLER 1514 B Humboldt SOMES BAR Comment
  SEINET10840593  Triodanis biflora Tracy TRACY 5131 Humboldt SAMOA Comment
  HSC20852  Triphysaria eriantha subsp. eriantha S. J. Hawks 1965-5-14 56 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  UC146242  Triphysaria eriantha subsp. eriantha J. P. Tracy 1904-4-24 2035 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  JEPS26219  Triphysaria eriantha subsp. eriantha J. P. Tracy 1911-5-30 3207 Humboldt at Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  UC1334891  Triphysaria eriantha subsp. eriantha L. D. Thurman 1965-4-8 626 Humboldt 4.4 mi s Samoa; s of Samoa Comment
  UC1222437  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1942-5-29 17088 Humboldt Eureka 6 Comment
  HSC20866  Triphysaria versicolor subsp. faucibarbata Francis Winter 1960-5-6 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC31558  Triphysaria versicolor subsp. faucibarbata Glenn McGourty 1974-4-27 31 Humboldt Along side of Mattole River Comment
  UC1222438  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1942-4-12 17070 Humboldt Eureka 6 Comment
  UC1198042  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1936-6-6 14862 Humboldt Eureka 6 Comment
  UCD93909  Trisetum cernuum Joseph P. Tracy 1939-4-25 16223 Humboldt Bull Creek. 60 Comment
  UC15029  Triteleia bridgesii P. E. Goddard Jul 1 1901-Aug 1 1901 37 Humboldt Hupa Comment
  UC15030  Triteleia bridgesii Mrs. M. H. Manning 1901-5-22 1 Humboldt Hupa Valley Comment
  UC15027  Triteleia bridgesii J. Burtt Davy 1899-6-19 5643 Humboldt Hoopa Mtn North Coast Ranges 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
  HSC38090  Triteleia laxa Thomas W. Nelson, James Nelson 1976-5-30 2611 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC81661  Triteleia laxa Thomas W. Nelson, Jane P. Nelson 1980-7-13 6060 Humboldt Along the rd. from Dinsmore to Anderson Ford-McKeown Ranch rd. 762 Comment
  CAS-BOT-BC526350  Triteleia laxa Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC79549  Triteleia laxa Kenneth Clark 1980-6-14 667 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  UC30074  Triteleia laxa P. E. Goddard 1901-8-6 190 Humboldt Regna Comment
  HSC13439  Triticum aestivum L. M. Malloy 1965-5-20 30 Humboldt Old county dump, 5 mi. from Arcata on Fickle Hill Rd. Comment
  CAS-BOT-BC85852  Tsuga heterophylla P. C. Everett; E. K. Balls 1953-10-13 18654 Humboldt 11.3 mi. to 16.6 mi. e. of jct. with Hwy 101 on Hwy 299 from Blue Lake 640 Comment
  CAS-BOT-BC85897  Tsuga heterophylla Doris K. Kildale 1927-4-10 3078 Humboldt Prairie Creek in deep woods Comment
  HSC49358  Tsuga heterophylla Thomas W. Nelson, Jane P. Nelson 1979-9-10 5065 Humboldt Old logging rd. S of Lundbar Hills section of Eureka 49 Comment
  UCSB26310  Tsuga heterophylla Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  HSC49911  Umbellularia californica Maralyn O'Meara 1973-2-9 123 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  UC1196283  Umbellularia californica Joseph P. Tracy 1920-10-24 5405 Humboldt North Fork of Mad River, at Camp Bauer North Fork of Mad River; Northern Coast Ranges, North Fork of Mad River 60 Comment
  HSC69782  Urtica dioica subsp. gracilis R. Kalal 1979-5-20 62 Humboldt Logging road E of HSU campus, along Jolly Giant Creek. 61 Comment
  RSA167411  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-9-22 19369 Humboldt Klamath River, near Slate Creek. Below Orleans 8 miles. 122 Comment
  CAS-BOT-BC193961  Vaccinium cespitosum Doris K. Kildale 1928-5-25 6039 Humboldt Foot of Third Street near drawbridge on Eureka Slough, Eureka Comment
  UC1197767  Vaccinium cespitosum J. P. Tracy 1900-8-26 928 Humboldt immediate vicinity Eureka; , Ricks Prairie 0 Comment
  HSC7907  Vaccinium ovatum J. Pursell 1964-10-11 10112 Humboldt Old Hwy. 101, 3 mi. N Patricks Point State Park Comment
  HSC7908  Vaccinium ovatum J. Pursell 1964-10-17 10178 Humboldt Road to Box Camp in Hoopa Valley 762 Comment
  HSC7915  Vaccinium ovatum D. E. Anderson 1961-8-11 1733 Humboldt Redwood preserve E of HSU campus 30 Comment
  HSC79432  Vaccinium ovatum Kenneth Clark 1981-4-5 1301 Humboldt Above S fork Dead Man's Gulch 114 Comment
  HSC89511  Vaccinium ovatum M. Roantree 1985-4-25 6 Humboldt E side of Trinidad Head. Comment
  UC1193357  Vaccinium ovatum R. H. Neuns 1950-7-13 133 Humboldt 3 mi s Alder Point (Quad. 29D2) 548 Comment
  UC1197768  Vaccinium ovatum Joseph P. Tracy 1918-5-5 4919 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC37332  Vaccinium parvifolium Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 477 Humboldt Along Lost Man Creek. 38 Comment
  UC32645  Vaccinium parvifolium J. Burtt Davy 1899-6-18 5608 Humboldt Bald Mt., near Korbel; North Coast Ranges Comment
  UC314631  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1924-7-13 6725 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC198661  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, Eel River 60 Comment
  HSC73874  Valeriana sitchensis subsp. sitchensis M. A. Baker 1980-7-19 2988 Humboldt Near Bret Hole. 1814 Comment
  CAS-BOT-BC76046  Vancouveria hexandra Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  CAS-BOT-BC76050  Vancouveria hexandra Mrs. H. E. Wilder 1924-4-26 s.n. Humboldt Carlotta. Comment
  UC302103  Vancouveria hexandra Joseph P. Tracy 1926-5-22 7513 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  RSA120717  Vancouveria planipetala S. S. Tillett 1956-7-6 613 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  RSA438032  Vancouveria planipetala Miss Hutchinson 1927-7-1 s.n. Humboldt [Unspecified] Comment
  UCD95101  Vancouveria planipetala Rolf Y. Berg 1963-7-5 s.n. Humboldt near south entrance to Benbow Lake State Park, U.S. Highway 101. Comment
  UC1173641  Veratrum californicum var. californicum Joseph P. Tracy 1934-6-21 13244 Humboldt 2 mi s Field's Landing (at Still Ranch) 6 Comment
  UC1173644  Veratrum insolitum Joseph P. Tracy 1929-7-4 8636 Humboldt French Camp Ridge 1066 Comment
  HSC34287  Veratrum viride K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  HSC21190  Veronica americana C. B. Wolf 1927-8-22 774 Humboldt Big Lagoon Comment
  HSC56108  Veronica americana G. L. Clifton 1979-7-31 11860 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC97542  Veronica americana Ivy Watson 2008-9-28 32 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  UC176114  Veronica persica Joseph P. Tracy 1912-7-3 3718 Humboldt Eel River Valley, at Metropolitan Eel River Valley; Northern Coast Ranges, Eel River Valley 30 Comment
  HSC21208  Veronica persica J. W. Johnson 1962-4-8 1207 Humboldt Arcata, Mad River Co. Park Comment
  UCD20170  Veronica serpyllifolia J. M. Tucker 1948-9-5 1866 Humboldt Near Hwy 101, 3.5 miles north of Myers. Comment
  HSC56097  Veronica serpyllifolia subsp. humifusa G. L. Clifton 1979-7-31 11807 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC90266  Vicia sativa subsp. nigra Jean Hanson 1980-5-24 66 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka, W end of island, S of dike Comment
  UC524122  Vicia villosa subsp. villosa Ira L. Wiggins 1932-7-7 5880 Humboldt near Samoa Comment
  HSC3226  Vinca major W. R. Brigham 1962-5-3 3 Humboldt Near N end of old Hwy. 101 N of Big Lagoon Rd. Comment
  UC1761500  Viola Milo S. Baker 1923-7-30 157 Humboldt near Fredericksons Ranch, Eureka-Bridgeville Hwy Comment
  CAS-BOT-BC263945  Viola adunca Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC263951  Viola adunca L. B. Kildale 1926-3-26 1656 Humboldt Dillon Road between Beatrice and Field's Landing Comment
  CDA11191  Viola adunca G. F. Hrusa, N. Kang 1992-3-14 9380 Humboldt StageCoach Hill annex of Prairie Creek Redwoods State Park. Comment
  UC502954  Viola adunca Joseph P. Tracy 1930-5-4 8693 Humboldt McClellan Mountain; Northern Coast Ranges 609 Comment
  UC1761536  Viola adunca Mrs. Wilder 1926-4 5432 Humboldt Carlotta, Mrs. Wilder's yard Comment
  SEINET200800 Image available Viola bakeri J. P. Tracy 1932-7-15 10596 Humboldt Trinity Summit Klamath Mts. Open ground near melting snow. 1829 Comment
  HSC21786  Viola glabella Elrid H. Spinas 1948-5-22 31 Humboldt Horse Mtn. Comment
  HSC74650  Viola glabella M. A. Baker 1980-5-17 1242 Humboldt Near Le Perron Peak 1066 Comment
  UC1198456  Viola glabella Joseph P. Tracy 1913-5-4 4055 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC536492  Viola glabella Henry M. Pollard 1948-7-18 s.n. Humboldt Near Orleans Comment
  HSC21783  Viola glabella Francis Winter 1960-4-23 Humboldt Simpson Creek, Korbel-Maple Creek Rd. 244 Comment
  HSC26335  Viola glabella Thomas W. Nelson 1971-3-30 363 Humboldt Beside Howe Creek Comment
  UC1761969  Viola glabella Joseph P. Tracy 1937-7-2 15408 Humboldt Trinity Summit, head of Hors-Linto Creek 1371 Comment
  HSC82031  Viola hallii Thomas W. Nelson, James Nelson 1980-6-10 5399 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  HSC97502  Viola hallii C. Witte 2007-5-8 3 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  JEPS80008  Viola lobata subsp. integrifolia Joseph P. Tracy 1937-7-2 15408 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  HSC21832  Viola ocellata R. A. Rasp 1964-4-25 40 Humboldt 2.5 mi. E of Willow Creek off of Hwy. 299 Comment
  UC1198420  Viola praemorsa subsp. linguifolia Joseph P. Tracy 1933-6-13 12566 Humboldt near summit on road w from Hoopa to Bair's; Northern Coast Ranges, Hooopa Mountain 1066 Comment
  UCR45417  Viola praemorsa subsp. praemorsa Pearson, Anderson, Flinn 1986-4-19 210 Humboldt Horse Mountain; 3 miles up Titlow Hill Rd. off Hwy 299 1434 Comment
  UC183611  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1913-6-19 4204 Humboldt in Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC67183  Viola purpurea subsp. integrifolia Thomas W. Nelson, Jane P. Nelson 1980-6-10 5434 Humboldt Along E side of Red Mtn. 1372 Comment
  CHSC68507  Viola sempervirens Vernon H. Oswald 1997-4-10 8326 Humboldt Elk Head, north end of Trinidad State Beach. Alonf the trail between the parking area and the bluffs overlooking the ocean. 30 Comment
  HSC34643  Viola sempervirens Thomas Anthony 1975-4-8 4 Humboldt E of HSU tennis courts on ridge facing Fern Lake from W Comment
  UC66211  Viola sempervirens Harley P. Chandler June, 1901 1292 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  POM286646  Viola sempervirens Lyman D. Benson 1928-7-8 378 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  UC201299  Viola sempervirens Chesnut and Drew 1888-7-8 Humboldt Campbell's Comment
  UC1198442  Viola sheltonii Joseph P. Tracy 1935-7-24 14167 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  HSC22841  Vulpia microstachys D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt 3 mi. W of Willow Creek along Three Creeks Rd. Comment
  HSC9914  Vulpia microstachys C. S. Chavez 1965-5-1 64 Humboldt On Hwy. 299 2 mi. E of Willow Creek. Comment
  UC1145192  Vulpia microstachys var. pauciflora Joseph P. Tracy 1942-6-23 17224 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC70774  Vulpia myuros R. York 1980-5-17 552 Humboldt Near Le Perron Peak 1066 Comment
  HSC20440  Whipplea modesta S. S. Stutz 1963-3-24 8 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC73158  Whipplea modesta M. A. Baker 1980-5-18 1287 Humboldt Near Black Mtn. 1006 Comment
  SD51271  Whipplea modesta Darley F. Howe 1961-8-2 3121 Humboldt 7.7 miles east of Orick on Bald Mountain Road. 609 Comment
  HSC28932  Woodwardia fimbriata Diane Johnson 1972-12-4 Humboldt Butler Valley near Big Bend Rd. Comment
  HSC70753  Woodwardia fimbriata R. York 1980-5-17 530 Humboldt Near Le Perron Peak 1066 Comment
  HSC63840  Wyethia angustifolia M. A. Baker 1979-6-26 908 Humboldt S facing ridge Comment
  JEPS32067  Wyethia angustifolia Joseph P. Tracy 1935-6-23 13938 Humboldt French Camp Ridge 1066 Comment
  JEPS32068  Wyethia angustifolia Joseph P. Tracy 1933-8-6 12937 Humboldt French Camp Ridge 1066 Comment
  SBBG60857  Wyethia angustifolia R. Hartwell 1938-8-5 Humboldt Mattole Rd, on the "Hump," near Capetown, above the sea Comment
  UC582641  Wyethia angustifolia Joseph P. Tracy 1937-7-24 15524 Humboldt prairie in Devil's Hole; Trinity Summit 1676 Comment
  POM192569  Wyethia longicaulis H. E. Parks 1930-05 0740 Humboldt Laribee Valley Comment
  CAS-BOT-BC382123  Xanthium strumarium Doris K. Kildale 1926-8-8 2467 Humboldt mouth of Bull Creek Comment
  CAS-BOT-BC527072  Xerophyllum tenax B. H. Mace; Frank Graham 1922-10-1 38737 Humboldt Brannan Mt., Trinity Forest Comment
  HSC100567  Xerophyllum tenax Carl C. Marshall Jun 1885 82 Humboldt Ridge between Redwood and N Fork. Comment
  HSC12015  Zeltnera muehlenbergii Wilbur Peterson 1970-10-31 102 Humboldt Scotia Bluffs, edge of Eel River Comment
  HSC8414  Zeltnera muehlenbergii J. P. Tracy 1938-7-18 16085 Humboldt Fickle Hill, 4 mi. S of Arcata 366 Comment
  HSC73775  Zigadenus micranthus M. A. Baker 1980-6-7 1769 Humboldt Near Brush Mtn. 1128 Comment
  HSC15747  Zigadenus micranthus D. E. Anderson 1965-5-15 3696 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. 198 Comment
  UC146216  Zigadenus micranthus var. micranthus Joseph P. Tracy 1908-6 2779 Humboldt nw slope Buck Mountain; Northern Coast Ranges, nw slope Buck Mountain 609 Comment
  HSC49625  Zostera marina R. York 1979-4-22 248 Humboldt Along bluffs just N of College Cove Comment



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