Search Results — 2000 specimen records retrieved (1340 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
  CAS-BOT-BC78057  Abies grandis Doris K. Kildale 1927-2-21 2958 Humboldt Bucksport, back of cemetery 30 Comment
  NY29281  Abies grandis J. P. Tracy 1932-3-20 9781 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC1134161  Abies grandis G. T. Nordstrom 1937-7-1 1420 Humboldt 2.5 mi ne Orick; Orick Quad. 152 Comment
  HSC73071  Abies procera M. A. Baker 1980-7-22 3063 Humboldt Near Salmon Mtn. 1820 Comment
  HSC73072  Abies procera Gail Newton 1980-7-24 1786 Humboldt Near Somes Mtn. 1615 Comment
  UC1229745  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Horse Trail Ridge Six Rivers National Forest, Horse Trail Ridge (sw slope) 1828 Comment
  UC55499  Abronia latifolia J. P. Tracy 1901-8-7 1271 Humboldt Sand Hills of Ocean Beach Samoa, Opp Eureka Comment
  POM264508  Abronia umbellata subsp. breviflora H. E. Parks 1941-09 24212 Humboldt Mouth of Little River. Comment
  CAS-BOT-BC330605  Acer glabrum var. glabrum Doris K. Kildale 1925-8-17 1213 Humboldt Trinity Summit 1828 Comment
  RSA178582  Acer glabrum var. torreyi Joseph P. Tracy 1950-7-1 18947 Humboldt Back of Cold Springs, near Clear Lake Comment
  CAS-BOT-BC331587  Acer macrophyllum Doris K. Kildale 1926-8-15 2527 Humboldt Willow Creek near mouth - between first and second fords 152 Comment
  HSC12932  Acer macrophyllum C. E. Fellows 1970-11-9 351 Humboldt HSC Campus, S side Bio Greenhouse Comment
  UC179927  Acer macrophyllum Joseph P. Tracy 1914-7-7 4493 Humboldt in valley of North Fork of Elk River Northern Coast Region, Humboldt Bay, North Fork Elk River (region about Humboldt Bay) 0 Comment
  HSC28955  Achillea millefolium Thomas W. Nelson 1971-11-11 597 Humboldt Foot of Murray Rd., McKinleyville. Comment
  HSC58329  Achillea millefolium Overton, Butler 1979-8-2 12629 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC72789  Achillea millefolium M. A. Baker 1980-6-26 2399 Humboldt Near Sims Creek 610 Comment
  RSA298149  Achillea millefolium James Payne Smith 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC60005  Achillea millefolium M. A. Baker 1978-5-20 562 Humboldt East side of Klamath River Comment
  HSC90327  Achillea millefolium Jean Hanson 1980-6-22 105 Humboldt Indian (Gunther) Island, Humboldt Bay, City of Eureka, W end of island Comment
  HSC73179  Achlys triphylla M. A. Baker 1980-5-18 1295 Humboldt Near Black Mtn. 1006 Comment
  CAS-BOT-BC210652  Achnatherum lemmonii Joseph P. Tracy 1933-5-20 12247 Humboldt Mattole Valley 152 Comment
  UC34152  Achnatherum lemmonii Joseph Burtt Davy 1899-6-8 5348 Humboldt Harris Comment
  RSA10032  Achnatherum nevadense Joseph P. Tracy 1932-7-12 10446 Humboldt Open ground at Corral Prairie, Trinity Summit, Klamath Mountains. 1524 Comment
  CAS-BOT-BC216455  Achnatherum occidentale subsp. californicum Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Moutnain Trail 1524 Comment
  HSC45024  Acmispon micranthus R. Sutherland 1978-4-23 18 .23478 Humboldt Near head of Kinsey (Fraser) Ridge 732 Comment
  BLMAR154  Acmispon parviflorus Donald Hazlett 1994-6-7 154 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC73560  Aconitum columbianum subsp. columbianum M. A. Baker 1980-7-22 3111 Humboldt Near Grogan Hole. 1676 Comment
  CAS-BOT-BC391409  Aconitum columbianum subsp. columbianum L. B. Kildale 1930-7-11 10205 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC54752  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-26 10270 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  CAS-BOT-BC412848  Aconogonon davisiae Thomas Nelson 1979-7-11 5022 Humboldt North Trinity Mountain and ridge to east. SE of Water Dog Lake 1828 Comment
  HSC82405  Aconogonon davisiae Thomas W. Nelson 1979-7-11 5021 Humboldt N Trinity Mtn. and ridge to E, SE of Water Dog Lake 1829 Comment
  HSC57018  Adenocaulon bicolor Overton, Butler 1979-7-24 9630 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC100421  Adenocaulon bicolor Carl C. Marshall Jul 1886 351 Humboldt Xavier's Place, Bald Hills. Comment
  OBI1123  Adiantum X tracyi Lawrence L. Kiefer 1964-5-19 1406 Humboldt Garberville, California one mile north of town, ravine just above Highway 101 305 Comment
  HSC39158  Adiantum aleuticum D. E. Anderson, J. P. Smith 1971-6-28 - 1250 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC44330  Adiantum aleuticum Brad Klipfel 1975-6-17 679 Humboldt Horse Mtn. Comment
  UCR123954  Adiantum aleuticum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6969 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
  OBI1088  Adiantum capillus-veneris R. J. Rodin 1938-6-30 s.n. Humboldt Richardson Grove State Park (Redwoods) Comment
  SEINET202723 Image available Adiantum capillus-veneris J. P. Tracy 1951-7-8 19622 Humboldt JP Tracy's garden at Eureka Comment
  UC197911  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  CAS-BOT-BC202608  Aesculus californica Joseph P. Tracy 1941-6-15 16914 Humboldt Near Honeydew bridge. Mattole Valley 152 Comment
  UC479099  Aesculus californica Marcus E. Jones, A. M. 1931-7-12 28938 Humboldt Alton Comment
  SEINET12232136  Aesculus californica J. P. Tracy 1950-1 18847 Humboldt Petrolia Comment
  HSC34286  Agastache urticifolia K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  HSC57997  Ageratina occidentalis G. L. Clifton, Griswold 1979-7-31 11763 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  SDSU6850  Agoseris apargioides subsp. maritima D. F. Howe 1965-8-7 4121 Humboldt Orick. Comment
  UC1222926  Agoseris aurantiaca var. aurantiaca Joseph P. Tracy 1949-8-7 18441 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  UC1222937  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-6 19024 Humboldt 3 mi s, sw slopes of Buck Mt Burr Valley; Buck Mountain 1066 Comment
  UC1222760  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-7-19 18392 Humboldt 1/4 mi se Clear Lake; Grouse Mountain 1524 Comment
  JEPS79803  Agoseris heterophylla Joseph P. Tracy 1933-5-30 12417 Humboldt (near Garberville) Redway 152 Comment
  UC582747  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 B Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  UC1199484  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1927-5-14 8030 C Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC1222892  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1948-5-31 18015 Humboldt 1 mi sw, (near Alder Point) Harris; Alder Point 304 Comment
  UC175200  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1913-6-14 4132 Humboldt at, (opposite Buck Mountain, in valley of Van Duzen River) Dinsmore's Ranch; Northern Coast Ranges, Van Duzen River 762 Comment
  CAS-BOT-BC13374  Agoseris retrorsa Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  UC526887  Agrostis alba Joseph P. Tracy 1927-8-7 8326 Humboldt moist ground by Lack Pond; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC35452  Agrostis capillaris J. D. Ackerman 1975-8-2 602 Humboldt Intersection of Indianola Cutoff and US Hwy 101. 3 Comment
  RSA44465  Agrostis densiflora Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  SEINET4558396  Agrostis exarata J. P. Tracy 1902-1 1757 Humboldt Immediate vicinity of Eureka 152 Comment
  UC181242  Agrostis exarata Joseph P. Tracy 1913-7-13 4359 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC34113  Agrostis exarata Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5493 Humboldt near Camp Grant Comment
  CAS-BOT-BC139503  Agrostis hallii A. G. Vestal 1937-6-14 s.n. Humboldt Along Redwood Highway 14 miles south of Garberville. Comment
  UC1145063  Agrostis oregonensis Joseph P. Tracy 1941-8-24 17039 Humboldt near McKay Camp (in wet meadow); South Fork Mountain 1676 Comment
  UC526876  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8933 Humboldt in wet meadow at McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC99594  Agrostis stolonifera K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 262 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC38924  Aira caryophyllea Linda M. Barker 1976-5-13 1475 Humboldt 3 mi. W of Arcata Comment
  HSC8857  Aira caryophyllea Yarick 1960-8-3 Humboldt K & K. 7 mi, Krueger Cr. Comment
  RSA183535  Aira caryophyllea G. Bos 1965-5-15 256 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  UC1103301  Aira caryophyllea Joseph P. Tracy 1914-5-14 4439 Humboldt Fort Seward Northern Coast Ranges Comment
  UC922022  Aira caryophyllea Joseph P. Tracy 1941-6-15 16907 Humboldt e King's Peak; Wilder Ridge 762 Comment
  RSA256299  Aira praecox J. R. Reeder, C. G. Reeder 1973-5-26 6186 Humboldt 2 miles S of Orick in Humboldt State Park, near Pacific Shore. Comment
  UC526679  Aira praecox Joseph P. Tracy 1925-5-24 7013 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC37500  Alisma triviale J. D. Ackerman 1975-8-2 611 Humboldt Intersection of Indianola Cutoff and Hwy. 101, ca. half-way between Eureka and Arcata. Comment
  UC2222699  Allium amplectens Joseph P. Tracy 1951-6-26 19596 Humboldt extreme head of Redwood Creek, n side Board Camp Mountain Board Camp Mountain, Redwood Creek 1541 Comment
  HSC73536  Allium falcifolium Gail Newton 1980-7-14 1497 Humboldt Near Last Chance Ridge. 1219 Comment
  RSA183583  Allium falcifolium D. E. Anderson 1965-6-1 3762 Humboldt Horse Mountain. 1433 Comment
  HSC2936  Allium falcifolium D. E. Anderson 1965-6-1 3762 Humboldt Horse Mtn. 1433 Comment
  RSA46682  Allium falcifolium Doris K. Kildale 1937-7-18 15132 Humboldt Horse Mt. Comment
  CAS-BOT-BC239  Allium grandisceptrum Mrs. W. W. Hutchinson 1924-6-1 s.n. (Herbarium A. Davidson no. 3595 ) Humboldt Garberville Comment
  CAS-BOT-BC135846  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5417 Humboldt Along road to Red Mountain 0.5 miles west of junction with Swayback Ridge Road - Six Rivers National Forest 1371 Comment
  HSC36496  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1895 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC50950  Allium hoffmanii G. L. Clifton, Overton 1979-6-3 3774 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  UCD138543  Allium hoffmanii Marc Baker 1980-7-11 2799 Humboldt near Red Mountain. 225 Comment
  UC1198189  Allium unifolium J. P. Tracy 1911-5-30 3209 Humboldt immediate vicinity of Eureka (bluff back of Bucksport); Bucksport 0 Comment
  HSC41327  Allotropa virgata Brad W. Klipfel 1974-8-2 513 Humboldt Horse Mtn. Comment
  CAS-BOT-BC451304  Allotropa virgata Volney Rattan no date on label; presented 1903 s.n. Humboldt 20 mi. above Orleans Comment
  UC502990  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt in meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1197955  Alnus rhombifolia Joseph P. Tracy 1923-1-14 6137 Humboldt Blue Lake Northern Coast Ranges, Mad River 30 Comment
  CAS-BOT-BC169536  Alnus rubra Doris K. Kildale 1928-3-30 4368 Humboldt Big Lagoon Comment
  CAS-BOT-BC169545  Alnus rubra Joseph P. Tracy 1930-7-27 9113 Humboldt Mattole River, near Petrolia 15 Comment
  HSC13111  Alnus rubra Steve Dorei 1970-10-13 40 Humboldt Arcata, HSC Campus W of Forestry Building along W edge of parking lot Comment
  RSA46834  Alnus rubra Doris K. Kildale 1928-3-30 4368 Humboldt Big Lagoon. Comment
  SEINET201015  Alnus rubra J. P. Tracy 1930-11-16 9255 Humboldt Alton along Van Duzen River 30 Comment
  HSC56342  Alnus viridis subsp. sinuata Griswold, Butler 1979-7-10 6257 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  SEINET201016  Alnus viridis subsp. sinuata J. P. Tracy 1947-8-24 17913 Humboldt Trinity Summit near Box Camp 1524 Comment
  RSA152374  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt Mouth of Elk River, near Eureka. Comment
  HSC46976  Ambrosia chamissonis J. P. Smith, Thomas W. Nelson 1977-6-30 9224 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  JEPS40955  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13687 Humboldt along coast in front of s end of Stone Lagoon; Dry Lagoon 3 Comment
  SEINET3132553  Ambrosia chamissonis J. W. Johnson 1961-8-17 1022 Humboldt Arcata, W.M. Lanphere farm, Samoa Peninsula. Comment
  HSC35864  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2130 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  HSC18509  Amelanchier alnifolia H. E. Parks, J. P. Tracy 1925-6-25 2775 Humboldt Lawrence Creek Comment
  HSC31452  Amelanchier alnifolia var. semiintegrifolia D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5570 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC33176  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson 1974-4-20 1183 Humboldt Near Elk Head N of Trinidad Comment
  HSC39521  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson, James Nelson 1976-6-10 2664 Humboldt Ridge W of Senteney Rock 1555 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
  HSC55636  Amelanchier pallida Overton, Butler 1979-7-24 9662 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  CAS-BOT-BC143012  Amelanchier utahensis Alice Eastwood 1921-7-21 10672 Humboldt Van Duzen River, on the road. Comment
  HSC3536  Amsinckia douglasiana J. Wendell Howe 1214 Humboldt Comment
Read comments
Feb 11 2018
  JEPS43121  Anagallis arvensis Lincoln Constance 1934-5-27 703 Humboldt w. end of Dyerville Bridge (S. Fork Eel R.); Bull Creek Region, S. Fork Eel R. 45 Comment
  UC1198610  Anagallis arvensis Joseph P. Tracy 1912-6-9 3676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC40259  Anaphalis margaritacea Linda M. Barker 1976-8-2 1671 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC57007  Anaphalis margaritacea Overton, Butler 1979-7-24 9594 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC76343  Anaphalis margaritacea D. K. Imper 1981-7-21 890 Humboldt Near Table Bluff 38 Comment
  UCSC000820  Anaphalis margaritacea H. L. Person 1932-7-16 s.n. Humboldt Highway N. of Trinidad Trinidad - Rock Point Comment
  CAS-BOT-BC391771  Anemone deltoidea Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC1196197  Anemone deltoidea Joseph P. Tracy 1935-7-28 14309 Humboldt near Corral Prairie; Trinity Summit 1584 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
  UC1197383  Angelica genuflexa Joseph P. Tracy 1937-7-17 15442 Humboldt 2 mi s of Fields Landing (near Still Ranch); Northern Coast Region 6 Comment
  UC1103415  Angelica genuflexa Joseph P. Tracy 1948-9-5 18168 Humboldt Happy Camp Mountain, Trinity Summit area Happy Camp Mountain; , Trinity Summit area 1280 Comment
  CAS-BOT-BC221419  Angelica hendersonii Carl B. Wolf 1937-9-9 9304 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  UC642308  Angelica hendersonii Joseph P. Tracy 1938-8-28 16134 Humboldt Trinidad 3 Comment
  HSC71410  Angelica hendersonii J. M. DiTomaso 1980-8-3 1831 Humboldt Big Lagoon State Park, S end, 50m N of boat ramp, 40m from Lagoon Comment
  RSA21186  Angelica hendersonii C. B. Wolf 1937-8-11 9145 Humboldt 1/2 mile east of Alton. 21 Comment
  HSC39723  Angelica tomentosa Thomas W. Nelson 1976-10-25 3276 Humboldt Along ridge N of Bear Creek 1463 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
  HSC98637  Angelica tomentosa Cara Witte 2007-7-25 578 Humboldt Forest Service Road 5N10. Approximately 1/2 mile from intersection with Forest Service Road 5N41. 1283 Comment
  JEPS14221  Angelica tomentosa Joseph P. Tracy 1938-8-14 16107 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UCD127179  Angelica tomentosa Joseph DiTomaso 1980-8-15 1864 Humboldt 5 miles west of Willow Creek at 34.4 mile road mark on Highway 299. Comment
  SD109165  Angelica tomentosa var. hendersonii Joseph M. DiTomaso 1980-7-29 1800 Humboldt Elkshead, ca. 2 miles north of Trinidad Comment
  UC582649  Antennaria rosea Joseph P. Tracy 1935-7-24 14169 Humboldt Trinity Summit (near Ranger Station) Trinity Summit 1828 Comment
  RSA167203  Antennaria suffrutescens Joseph P. Tracy 1947-7-9 17864 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC289127  Anthoxanthum occidentale Mabel Wiesendanger 1928-4-7 907 Humboldt Lane's Redwood Flat, Redwood Highway Comment
  CAS-BOT-BC137738  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad. Comment
  CAS-BOT-BC137740  Anthoxanthum odoratum H. S. Yates 1936-6-16 5684 Humboldt Near Bayside. 9 Comment
  UC922011  Anthoxanthum odoratum Joseph P. Tracy 1942-6-2 17101 Humboldt 2 mi n of Bridgeville 609 Comment
  UC922012  Anthoxanthum odoratum Joseph P. Tracy 1948-6-13 18046 Humboldt Dobbyn Creek 152 Comment
  UCD73827  Anthoxanthum odoratum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1208 Humboldt salt marshes bordering Humboldt Bay, about 2 miles north of Eureka. Comment
  UC582468  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1936-6-27 16003 Humboldt Miranda 91 Comment
  UC147926  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy Jul 1908 2790 Humboldt ridge between Van Duzen River and Mad River (near Low Gap, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  JEPS45613  Aphanes occidentalis W. L. Jepson 1921-8-7 9337 a Humboldt Stone Lagoon; Humboldt Coast Comment
  HSC36170  Apium graveolens Gary S. Lester 1973-12-2 60 Humboldt Arcata Comment
  UC1400213  Apium graveolens Gary S. Lester 1973-12-2 60 Humboldt in the city of Arcata Arcata Comment
  HSC58036  Apocynum androsaemifolium G. L. Clifton 1979-7-31 11874 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1197616  Apocynum androsaemifolium Joseph P. Tracy 1911-7-11 3518 Humboldt ridge next s. of Hoopa Valley (w. side of Trinity R. near Willow Creek); Northern Coast Ranges, Trinity R. 304 Comment
  RSA46787  Aquilegia formosa Doris Kildale Gillespie 1937-8-12 15265 Humboldt South Fork Mountain. Comment
  POM118664  Aquilegia formosa var. truncata Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  HSC102925  Arabis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 868 Humboldt Patterson Meadows 1566 Comment
  HSC40527  Aralia californica Thomas W. Nelson, James Nelson 1976-7-28 3059 Humboldt Along Hwy. 36, ca. 4 mi. W of Dinsmore Comment
  CHSC107101  Arbutus menziesii M. Mitchell 2010-4-9 4 Humboldt Willow Creek @ Highway 299 East. 207 Comment
  HSC7604  Arbutus menziesii D. E. Anderson 1965-5-15 3707 Humboldt Along Hwy. 299, just N of Sugar Bowl Ranch. Comment
  HSC98739  Arbutus menziesii Cara Witte 2008-5-26 661 Humboldt Along Forest Service Road 5N10. 1/2 mile south of intersection with Friday Ridge Road. 1487 Comment
  UC1196877  Arctostaphylos Joseph P. Tracy 1934-3-11 13156 Humboldt French Camp Ridge 1066 Comment
  UC582722  Arctostaphylos Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC585943  Arctostaphylos Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  RSA47097  Arctostaphylos cinerea Doris K. Kildale 1926-4-4 1721 Humboldt Hulbdt County: Northern end of county at Del Norte line, Bluff between Redwood high & ocean Comment
  CAS-BOT-BC23739  Arctostaphylos columbiana C. Hart Merriam 1921-8-18 s.n. Humboldt Big Lagoon Comment
  CAS-BOT-BC23769  Arctostaphylos columbiana Joseph P. Tracy 1932-2-28 9772 Humboldt Around Humboldt Bay 60 Comment
  CAS-BOT-BC23820  Arctostaphylos columbiana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  CHSC39441  Arctostaphylos columbiana B. A. Stein 1981-11-1 568 Humboldt US Hwy 101, 2 miles north of Patrick Point. 60 Comment
  HSC7614  Arctostaphylos columbiana J. Pursell 1964-11-1 1116 Humboldt Hwy. 96, 8 mi. S of Orleans Comment
  HSC89539  Arctostaphylos columbiana M. Roantree 1985-4-28 15 Humboldt W side of Trinidad Head, along trail Comment
  LA42320  Arctostaphylos columbiana H. E. Parks; December 1931 4950 Humboldt Hobson's Trinidad 60 Comment
  UCD50761  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1166 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). Comment
  UCD50769  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1178 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  UCD50873  Arctostaphylos glandulosa Roman Gankin 1965-8-5 545 Humboldt 6.5 miles west on Kings Mountain Road, Pacific Range Wilderness Area. Comment
  CAS-BOT-BC24825  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1940-7-14 16689 Humboldt Wilder Ridge (near Kings Peak). 762 Comment
  JEPS38971  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1936-8-2 15075 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  RSA632807  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27790 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA633016  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27813 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  RSA633026  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27804 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  CAS-BOT-BC24370  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CHSC110738  Arctostaphylos manzanita subsp. manzanita Dean Wm. Taylor 2011-5-4 21118 Humboldt Larabee Valley, along Highway 36 about 1 mile east of the eastern end of the valley at the bridge for the Little Van Duzen River, 701 Comment
  HSC98992  Arctostaphylos manzanita subsp. manzanita Cara Witte 2008-6-4 686 Humboldt Ammon Ridge Road. Approximately 1/2 mile east of intersection with National Forest 1. 1562 Comment
  UC585969  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-9 13348 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC40061  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge 1066 Comment
  HSC70475  Arctostaphylos patula Gail Newton 1980-7-15 1588 Humboldt Near Sims Mtn. 1311 Comment
  HSC98732  Arctostaphylos patula Cara Witte 2008-7-2 817 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  HSC99103  Arctostaphylos patula Cara Witte 2008-8-6 1019 Humboldt Along National Forest 1, on Kinsey Ridge. North of White Oak Opening. 1246 Comment
  CAS-BOT-BC43982  Arctostaphylos uva-ursi Alice Eastwood 1923-8-14 12312 Humboldt Samoa Comment
  CAS-BOT-BC47209  Arctostaphylos uva-ursi Doris K. Kildale 1926-6-18 2395 Humboldt Gold Bluffs. Comment
  HSC31470  Arctostaphylos uva-ursi Steve Selva 1974-8-28 91 Humboldt Approx. 5 mi. S of Arcata on the Samoa Peninsula Comment
  UC1225933  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17502 Humboldt Eureka 45 Comment
  UCD52028  Arctostaphylos uva-ursi Roman Gankin 1965-8-6 554 Humboldt Sand dunes west of road. 1.3 miles south of Samoa, Samoa Peninsula, Humboldt County, California. Comment
  CAS-BOT-BC526231  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Larry Pries dairy, 3.4 mi W of Main St., on Centerville Beach Rd, Ferndale Comment
  UCD129125  Arctotheca calendula T. C. Fuller; G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  HSC37923  Armeria maritima subsp. californica Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  HSC89433  Armeria maritima subsp. californica D. Daly 1984-6-16 30 Humboldt Trinidad Head. 61 Comment
  RSA245251  Armeria maritima subsp. californica David K. Smith 1968-10-11 6 Humboldt 3 mi S of Trinidad. Comment
  UCD98448  Armeria maritima subsp. californica Linda M. Barker 1976-6-1 1553 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC82428  Arnica discoidea Harley P. Chandler 1901-6-1 1400 Humboldt Klamath River 243 Comment
  CAS-BOT-BC82430  Arnica discoidea Doris K. Kildale 1926-6-27 2190 Humboldt McClellan Mountain - Sweasey Lake 822 Comment
  UC302175  Arnica latifolia Mrs. L. B. Kildale 1926-4-25 Humboldt Sugar Bowl Mt. Trinity River 457 Comment
Read comments
Mar 1 2007
  HSC8988  Arrhenatherum elatius J. A. Waller 1965-5-2 29 Humboldt Along Hwy. 96 near Willow Creek Comment
  UC1057744  Arrhenatherum elatius W. L. Colwell 1957-7-6 42 Humboldt 6 mi nw of Bridgeville (Redwood House Ranch, Quadrangle 26C3); Redwood House Ranch 685 Comment
  CAS-BOT-BC84835  Artemisia douglasiana Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET11842962  Artemisia douglasiana F. H. Utech 1986-1 86 -412 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  UC1222996  Artemisia douglasiana Joseph P. Tracy 1950-8-20 19326 Humboldt 8 mi below Orleans (in sandy alluvial wash at Big Bar, near Slate Creek); Klamath River 121 Comment
  UC249809  Artemisia dracunculus Joseph P. Tracy 1923-2-25 6148 Humboldt river bar at Carlotta; Van Duzen River 30 Comment
  BLMAR66  Artemisia pycnocephala Jennifer Anthony-Wheeler 1994-5-18 66 Humboldt Samoa dunes, growing outside wetland boundaries in Samoa Rec. area 6 Comment
  RSA34239  Artemisia suksdorfii C. B. Wolf 1927-8-29 1220 Humboldt Devils' Gate, S of Cape Mendocino Comment
  CAS-BOT-BC97243  Artemisia suksdorfii Carl B. Wolf 1927-8-29 1220 Humboldt [Devil's] Devils Gate, south of Cape Mendocino Comment
  POM51270  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 3 Comment
  CAS-BOT-BC400529  Asarum caudatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CHSC111  Asarum caudatum 1952-7-7 Humboldt Coastal. Comment
  HSC102553  Asarum caudatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1541 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  SEINET4069277 Image available Asarum caudatum O. M. Clark 1932-1 5319 Humboldt South Eureka. Comment
  CAS-BOT-BC400535  Asarum caudatum H. E. Parks 1931-3-24 0918 Humboldt Near Orick Comment
  CAS-BOT-BC400539  Asarum caudatum C. C. Harris; S. K. Harris 1936-6-14 652 Humboldt On Yager Road from Carlotta 457 Comment
  HSC62839  Asarum caudatum J. M. DiTomaso 1979-4-8 854 Humboldt Behind Humboldt State University campus, Arcata Comment
  UC494106  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Near Orick Comment
  HSC100389  Aspidium rigidum var. argutum Carl C. Marshall Jun 1886 286 Humboldt Hoopa. Comment
  HSC73050  Aspidotis densa M. A. Baker 1980-7-11 2777 Humboldt Near Red Mtn. 1341 Comment
  HSC74315  Aspidotis densa M. A. Baker 1980-7-11 2800 Humboldt Near Red Mtn. 1433 Comment
  UC440176  Aspidotis densa Joseph P. Tracy 1919-9-25 5301 Humboldt Trinity Summit; Northern Coast Ranges 182 Comment
  UCD137283  Aspidotis densa Frederic Hrusa 1993-6-17 11223 Humboldt Red mountain, at entrance gate to Red Mt. 900 Comment
  RSA417697  Aster occidentalis Thomas W. Nelson, Jane Nelson 1977-9-3 3726 Humboldt Along Creek draining, north from pond above Alder Spring. 1585 Comment
  SEINET10473646  Aster subspicatus Mary Susan Taylor 1982-10-24 Taylor 5175 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  CDA26596  Astragalus agnicidus R. Drewry 1988-7-15 Humboldt Near Miranda. 0 Comment
  JEPS16847  Astragalus agnicidus J. C. Tario Jr. 1931-8-20 Humboldt 4 mi s Miranda (near Bear Buttes, local on Tosten and Pierce Ranch); near Bear Buttes, s of Miranda, Tosten and Pierce Ranch 762 Comment
  JEPS21028  Astragalus rattanii var. rattanii Joseph P. Tracy 1926-5-15 7486 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC25767  Astragalus umbraticus D. E. Anderson 1965-5-15 3694 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  RSA138295  Astragalus umbraticus Volney Rattan 1878-1 1878 Humboldt Humboldt. Comment
  UC160968  Astragalus umbraticus Mrs. M. H. Manning 1901-7-27 306 Humboldt near Hupa (Hoopa) (Bald Hills); near Hupa (Hoopa), Bald Hills Comment
  UC179942  Astragalus umbraticus Joseph P. Tracy 1914-9-6 4598 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  CAS-BOT-BC69521  Athyrium filix-femina subsp. cyclosorum L. R. Abrams 1916-7-11 6053 Humboldt At mouth of Grizzly Creek on Van Duzon River. Comment
  UC197922  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt along Black Creek Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC902198  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1949-8-26 18512 Humboldt ne of Hawkins Bar Happy Camp Mt; Trinity Summit Range 1280 Comment
  UC922659  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  UCSB30585  Athyrium filix-femina var. cyclosorum Edwards, David 1974-9-2 Humboldt Ca. 10 ft. E. of dirt road, ca. 100 yds. from its jct. with Fickle hill Rd., Arcata 3 Comment
  JEPS23936  Athysanus pusillus Volney Rattan 1882-1 Humboldt Chemise Mountain Comment
  JEPS53225  Athysanus pusillus W. L. Jepson 1902-6-20 1901 Humboldt Fort Seward Ranch Ridge, (=Mail Ridge), expedition from Ukiah to the Hupa Indian Reservation Fort Seward Ranch Ridge 1219 Comment
  HSC4343  Atriplex leucophylla D. E. Anderson 1961-9-13 1809 Humboldt Big Lagoon County Park Comment
  HSC9006  Avena fatua E. W. Styskel 1963-5-19 34 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 290 Comment
  HSC9024  Avena fatua W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  UCD136023  Azolla filiculoides Malcolm A. Nobs; S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach. Comment
  RSA14722  Baccharis pilularis C. B. Wolf 1927-8-29 1219 Humboldt Devils' Gate, S of Cape Mendocino Comment
  UC204752  Baccharis pilularis Joseph P. Tracy 1918-9-29 5107 Humboldt 4 mi above mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC535754  Baccharis pilularis Eleanor Armstrong 1934-8-30 1200 Humboldt Richardson Grove 121 Comment
  SEINET11861883  Balsamorhiza deltoidea J. P. Tracy 1950-6-15 18792 Humboldt Mail Ridge, N of Harris 7 mi Comment
  UC1198289  Barbarea orthoceras Joseph P. Tracy 1932-7-16 10642 Humboldt along creek in McKay Prairie 1524 Comment
  HSC26814  Barbarea verna Thomas W. Nelson 1971-3-30 364 Humboldt Beside Grizzley Bluff Rd. near Ferndale Comment
  RSA245262  Barbarea verna Thomas W. Nelson 1973-4-25 798 Humboldt Beside Hwy 101 at Bayside turnoll. Comment
  HSC95549  Barbarea vulgaris Andrea Pickart 2002-5-24 107 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  CAS-BOT-BC106353  Bellis perennis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CHSC284  Bellis perennis M. Underhill 1952-7-13 Humboldt 1 Comment
  CAS-BOT-BC48159  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3410 Humboldt Bald Mountain ridge - in bog, edge of forest at High Prairie, on long high ridge between Mad River and Redwood Creek 1066 Comment
  HSC62831  Bensoniella oregona William Davilla 1980-10-16 1219 Humboldt Snow Camp Mtn. 1390 Comment
  HSC62832  Bensoniella oregona William Davilla 1980-10-16 1219 Humboldt Snow Camp Mtn. 1390 Comment
  RSA114084  Bensoniella oregona R. C. Bacigalupi, Constance, Trqacy, Moran, Rodriguez, Carlquist 1951-6-14 3410 Humboldt High Prairie, on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) 1067 Comment
  HSC31759  Berberis aquifolium Timothy B. Devine 1974-5-4 316 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC40854  Berberis aquifolium Thomas W. Nelson 1976-7-9 2995 Humboldt Along ridge S of E peak of Mtn. Lassic group, (Signal Pk.). 1707 Comment
  HSC74356  Berberis aquifolium var. repens Gail Newton 1980-6-17 228 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC75682  Berberis nervosa C. B. Wolf 1931-8-29 2372 Humboldt Near summit of Orick Hill on the road to Weitchpec. 304 Comment
  CHSC23182  Berberis nervosa Robert F. Thorne; P. Everett 1965-8-5 35138 Humboldt Mt. Chamisal: Below summit. 533 Comment
  HSC3347  Berberis nervosa C. B. Wolf 1927-8-28 1179 Humboldt 13 mi. above Blue Lake on Lord Ellis Rd. Comment
  HSC99384  Berberis nervosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 33 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC75805  Berberis pinnata Doris K. Kildale 1929-4-25 7433 Humboldt Kneeland Prairie. 792 Comment
  RSA24183  Berberis pinnata C. B. Wolf 1941-3-1 9974 Humboldt Kneeland Prairie, 1/8 mi. s.e. of Kneeland school. 762 Comment
  RSA46905  Berberis pinnata Doris K. Kildale 1926-3-21 1591 Humboldt McDowell Butte, Kneeland. 915 Comment
Read comments
Jul 25 2012
  HSC55066  Bistorta bistortoides G. L. Clifton, Griswold 1979-7-31 11638 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC64434  Bistorta bistortoides J. P. Smith, Steve Selva 1970-6-30 4119 Humboldt Comment
  POM87950  Blechnum spicant L. R. Abrams, R. Bacigalupi 8299 Humboldt Near northern county line Comment
  SEINET11711335  Blechnum spicant K. S. Erdman 1970-1 4820 Humboldt Summit of Gold Bluffs on park road ca 2 mi W of US 101 at Berry Glen, Redwood National Park Comment
  UC562689  Boechera sparsiflora Joseph P. Tracy 1935-7-31 14391 Humboldt ridge connecting Trinity Summit with Salmon Summit; Devils Backbone 1676 Comment
  SEINET12188876  Boisduvalia densiflora J. P. Tracy 1950-1 18843 Humboldt Cape Mendocino, S of point of the Cape, Davis Creek 30 Comment
  HSC44612  Boschniakia hookeri R. York 1978-6-5 191 Humboldt Near Waterman Ridge Rd., 12 mi. from terminus with Hwy 299. Bulk collection #122 610 Comment
  HSC65854  Boschniakia strobilacea Gail Newton 1980-6-24 602 Humboldt Near Ladder Rock 1570 Comment
  HSC99638  Boschniakia strobilacea Gail Newton 1980-7-22 1656 Humboldt Near Devils Backbone 1554 Comment
  HSC55130  Botrychium multifidum G. L. Clifton, Griswold 1979-8-1 11945 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  UC1239783  Botrychium multifidum Joseph P. Tracy 1912-7-22 3793 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  HSC913  Botrychium multifidum D. K. Walker 1968-11-6 Humboldt Clam Beach, old railroad cut below Vista Point lookout on Hwy. 101 about 1.5 mi. S of Trinidad Comment
  HSC78085  Botrychium multifidum var. intermedium L. P. Janeway, Amy Eisenberg 1984-4-25 748 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven rds. 3 Comment
  UC14481  Boykinia major Chesnut and Drew Aug. 1888 Humboldt head of Redwood Creek Comment
  SDSU9503  Boykinia occidentalis Harvey 1938-8-13 2263 Humboldt Near Arcata. 85 Comment
  UC14479  Boykinia occidentalis Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC420420  Boykinia occidentalis Mrs. M. H. Manning 1901-4 55 Humboldt near Hupa; near Hupa Comment
  CAS-BOT-BC420274  Boykinia occidentalis Milo S. Baker 1923-9-19 84 Humboldt Canon near Carlotta Comment
  HSC98977  Boykinia occidentalis Cara Witte 2008-7-28 958 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1641 Comment
  RSA32653  Boykinia occidentalis Doris K. Kildale 1925-6-17 701 Humboldt [Unspecified] Comment
  UC303172  Boykinia occidentalis H. E. Parks and Joseph P. Tracy 1924-8-10 6804 Humboldt Van Duzen River near Strongs Station; Northern Coast Ranges, Van Duzen River 60 Comment
  HSC6591  Brassica rapa Jerry Parker 1968-11-11 234 Humboldt NW corner of Murray Rd. and Central Ave., Mckinleyville Comment
  CAS-BOT-BC106296  Brickellia californica Carl B. Wolf 1927-8-27 1158 Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  RSA47155  Brickellia californica Doris K. Kildale 1926-8-29 2593 Humboldt Van Duzen River at Strong's Station Comment
  UC205166  Brickellia californica Joseph P. Tracy 1920-8-15 5354 Humboldt mouth of Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  RSA94123  Brickellia californica F. W. Peirson 1926-7-13 7048 Humboldt Mad River, vicinity of Blue Lake. Comment
  HSC100308  Briza maxima J. P. Smith 2011-5-4 13146 Humboldt New Navy Base Rd. SW of Samoa. 3 Comment
  RSA244953  Briza maxima Glen I. Wilcox 1973-5-26 s.n. Humboldt West shore of freshwater lagoon. Comment
  RSA385270  Briza maxima Bonnie C. Templeton 1964-6-13 100901 Humboldt Samoa [sand dunes], west of Arcata. Comment
  CAS-BOT-BC145568  Briza minor Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UC146225  Brodiaea elegans subsp. elegans Joseph P. Tracy 1908-6 2855 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  JEPS512  Brodiaea stellaris Joseph P. Tracy 1928-6-24 8474 Humboldt at head Middle Yager Creek (grassy flat); East's Ranch 762 Comment
  UC1152026  Bromus carinatus var. carinatus Joseph P. Tracy 1951-6-26 19569 Humboldt vicinity of Twin Lakes Comment
  UC526734  Bromus carinatus var. carinatus Joseph P. Tracy 1932-7-12 10449 Humboldt lamath Mountains, Trinity Summit, at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  CAS-BOT-BC149160  Bromus carinatus var. marginatus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 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
  RSA10039  Bromus commutatus Joseph P. Tracy 1933-6-9 12534 Humboldt Shively. On Eel River. 30 Comment
  UC526931  Bromus commutatus Joseph P. Tracy 1933-6-9 12534 Humboldt North Coast Ranges, on Eel River, Shively Shively; North Coast Ranges, Eel River, Shively 30 Comment
  CAS-BOT-BC155424  Bromus hordeaceus Henry M. Pollard 1948-7-18 s.n. Humboldt Orleans. Comment
  HSC38398  Bromus hordeaceus J. D. Ackerman 1975-6-10 449 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC9239  Bromus hordeaceus T. L. Ackerman 1964-5-7 41 Humboldt 1.5 mi. W from Sweesey dam Comment
  UC1103362  Bromus hordeaceus Joseph P. Tracy 1939-4-29 16260 Humboldt Orleans 121 Comment
  UC37642  Bromus laevipes Joseph Burtt Davy 1899-6-27 5871 Humboldt Hupa Valley Comment
  UC526932  Bromus sterilis Joseph P. Tracy 1933-6-13 12601 Humboldt Bair's Ranch on Redwood Creek Redwood Creek; North Coast Ranges, , Bair's Ranch 914 Comment
  HSC40688  Bromus tectorum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2871 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  UC1131315  Bromus vulgaris H. S. Yates 1936-6-23 5872 Humboldt 3 mi se of Scotia Comment
  HSC31451  Cacaliopsis nardosmia D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5569 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  UC161575  Cakile edentula J. P. Tracy 1901-8-7 1266 Humboldt Ocean Beach at Samoa, opposite Eureka Ocean Beach; Samoa, Ocean Beach Comment
  CHSC10120  Cakile maritima J. W. Johnson 1962-4-29 1299 Humboldt Arcata. W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC1222658  Cakile maritima Joseph P. Tracy 1950-6-8 18753 Humboldt Cape Mendocino, south of point of the Cape Cape Mendocino 3 Comment
  UC526777  Calamagrostis koelerioides Joseph P. Tracy 1926-6-20 7635 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  CAS-BOT-BC185182  Calamagrostis nutkaensis David D. Keck 1948-7-1 5976 Humboldt Northeast end of Big Lagood. Comment
  HSC58144  Calocedrus decurrens Gilbert Muth 1979-8-1 12179 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1781 Comment
  CAS-BOT-BC488453  Calochortus amabilis H. D. Ripley; R. C. Barneby 1948-6-16 6813 Humboldt South of Miranda 121 Comment
  HSC96227  Calochortus tolmiei M. Lindquist, C. Riley 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on NF 1 1205 Comment
  POM264814  Calochortus tolmiei Lincoln Constance, Alan A. Beetle, Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka 762 Comment
  UC667128  Calochortus tolmiei Joseph P. Tracy 1933-7-11 12659 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  CAS-BOT-BC494354  Calochortus tolmiei Doris K. Kildale 1929-4-27 7451 Humboldt Willow Creek. Salya road, along Trinity River. 3 miles north of Willow Creek. Comment
  SEINET6879028  Calochortus tolmiei W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  RSA54144  Calycadenia ciliosa H. M. Pollard 1946-8-28 s.n. Humboldt Near Summit of Orleans Mt. 1829 Comment
  CAS-BOT-BC273311  Calycadenia fremontii H. M. Hall 1930-10-1 12922 Humboldt Trinity River at Willow Creek Comment
  HSC24779  Calycadenia truncata Barbara Kelly 1971-7-7 66 Humboldt Somes Bar Comment
  HSC70954  Calypso bulbosa Thomas W. Nelson 1977-6-15 3429 Humboldt Along FS 6N01, just N of Clear Lake 1372 Comment
  HSC97493  Calypso bulbosa Cara Witte 2007-5-21 59 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 and National Forest 1. 1410 Comment
  HSC17640  Calyptridium monospermum Doris K. Kildale 1925-8-16 1227 Humboldt Trinity Summit 1829 Comment
  HSC32932  Calyptridium monospermum Thomas W. Nelson 1973-5-30 973 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  HSC97957  Calystegia occidentalis subsp. occidentalis Cara Witte, Michael Scott 2007-6-22 350 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  UC562487  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-8-30 13006 Humboldt Horse Mountain , Horse Mountain (Northern Coast Ranges) 1310 Comment
  HSC90256  Calystegia soldanella Jean Hanson 1980-5-24 82 Humboldt Indian (Gunther) Island in Humboldt Bay, Eureka. W end of island within 15 ft. of high tide line Comment
  UC198628  Calystegia soldanella Joseph P. Tracy 1917-5-30 4803 Humboldt sand dunes near Little River; Northern Coast Ranges, near Little River 6 Comment
  UC1173652  Camassia quamash subsp. quamash Joseph P. Tracy 1937-8-12 15637 Humboldt Snow Camp 1402 Comment
  HSC16442  Camissonia cheiranthifolia J. W. Johnson 1961-8-17 1044 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  SEINET10453135  Camissonia cheiranthifolia Mary Merello 1993-6-19 Merello 664 Humboldt Along Petrolia-Capetown Road. Pacific Coastal dunes. 40 Comment
  HSC16441  Camissonia cheiranthifolia J. W. Johnson 1961-5-13 1358 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  HSC62912  Camissonia cheiranthifolia J. M. DiTomaso 1979-4-22 912 Humboldt Big Lagoon, 8 mi. N of Trinidad Comment
  POM254099  Camissonia cheiranthifolia subsp. cheiranthifolia A. H. Harris, S. K. Harris, Clarence Crane Jr. 1939-8-23 970 Humboldt Samoa Comment
  JEPS11848  Campanula prenanthoides Joseph P. Tracy 1934-8-23 13600 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  SEINET10462963  Campanula prenanthoides Olmo 1928-6-10 OLMO s.n. Humboldt Wooley Creek Comment
  SEINET10462966  Campanula prenanthoides Tracy 1911-7-4 TRACY 3286 Humboldt Hill slopes at west side of Trinity River; near Willow Creek 244 Comment
  SEINET10972405  Campanula prenanthoides Willis L. Jepson 1932-7-24 Jepson 16383 Humboldt FRUITLAND Comment
  HSC74737  Campanula scouleri Gail Newton 1981-7-23 2280 Humboldt Near Bug Creek Butte. 1350 Comment
  SEINET10463749  Campanula scouleri Tracy 1908-6-27 TRACY 2858 Humboldt Valley of Van Duzen River, opposite Buck Mountain, in woods. 762 Comment
  SEINET7714829  Campanula scouleri Chesnut, Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC492265  Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC161552  Cardamine breweri Joseph P. Tracy 1905-4-16 2163 Humboldt region about Humboldt Bay (at Bucksport); Northern Coast Region, , Bucksport 0 Comment
  HSC26340  Cardamine californica Thomas W. Nelson 1971-4-4 365 Humboldt Above the S Fork of the Van Duzen River and beside Hwy. 36 at the bridge over the Van Duzen River Comment
  HSC36518  Cardamine californica J. D. Ackerman, A. M. Montalvo 1973-5-6 61 Humboldt 5 mi. from Weott on Bull Creek Flat Rd. 274 Comment
  HSC70752  Cardamine californica R. York 1980-5-17 531 Humboldt Near Le Perron Peak 1066 Comment
  HSC91613  Cardamine californica E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, by trail to Palmer's Point beach Comment
  JEPS53369  Cardamine californica W. L. Jepson 1934-5-7 16693 Humboldt Bull Creek Comment
  UC1536942  Cardamine californica Gordon H. True Jr. 1936-2-26 328 Humboldt e Pepperwood (along Eel River); , e of Pepperwood 91 Comment
  UCD114185  Cardamine californica Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  HSC99003  Cardamine californica var. californica Cara Witte 2008-6-18 744 Humboldt Horse Mountain Botanical Area. 3/4 mile west of intersection 6N36, 6N36A. 1375 Comment
  POM266034  Cardamine californica var. integrifolia Lincoln Constance, Reed C. Rollins 1942-5-20 2998 Humboldt Eel River 1 mile N of Pepperwood. 46 Comment
  UC1222655  Cardamine californica var. sinuata Joseph P. Tracy 1950-5-7 18651 Humboldt on the Redwood House Road 1 mi s Redwood House (on Yager Slope, head of South Yager Creek); head of South Yager Creek, on Yager Slope Comment
  UC492260  Cardamine nuttallii Joseph P. Tracy 1927-6-12 8129 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC64792  Cardamine oligosperma J. P. Smith 1971-10-9 4997 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  JEPS53295  Cardamine oligosperma Joseph P. Tracy 1918-5-5 4923 Humboldt Ocean Beach at Humboldt Bay; Northern Coast Region, , Ocean Beach Comment
  CAS-BOT-BC38127  Cardamine pensylvanica Joseph P. Tracy 1937-7-2 15401 Humboldt Trinity Summit. Head of Little Hors-Linto Creek. 1371 Comment
  SEINET10932251  Cardionema ramosissimum Mary Susan Taylor 1990-8-22 Taylor 6085 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  SEINET11861099  Carduus pycnocephalus J. P. Tracy 1947-6-8 17703 Humboldt 0.5 mi W of town, vicinity of Carlotta 30 Comment
  CDA6909  Carduus tenuiflorus J. P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mountain. Comment
  UC725496  Carex A. A. Heller 1923-7-10 13797 Humboldt Eel River between Scotia and Pepperwood Comment
  UC1222466  Carex amplifolia Joseph P. Tracy 1948-9-5 18193 Humboldt less than one mile s Grizzly Camp (head of Little Hors-Linto Creek); Trinity Summit, Little Hors-Linto Creek 1341 Comment
  JEPS109583  Carex aquatilis var. dives Dean W. Taylor 2002-9-12 18343 Humboldt Lake Prairie, remnant of the original bog vegetation on the eastern end of the lake 1097 Comment
  RSA286355  Carex aquatilis var. dives Robert F. Thorne 1974-7-29 45076 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  HSC95392  Carex arcta Gordon Leppig 2002-7-12 1785 Humboldt PalCo land, .5 mi. W of Fox Creek Rd., W side of large swamp 70 Comment
  POM160305  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt Near the Redwood House, on the road to head of Yager 610 Comment
  UC50827  Carex arcta J. P. Tracy 1901-6-30 1195 Humboldt immediate vicinity of Eureka 0 Comment
  HSC70163  Carex athrostachya Thomas W. Nelson 1978-7-3 4411 Humboldt Along road to Anderson's Ford, McKeown Ranch 823 Comment
  CHSC84737  Carex bolanderi L. P. Janeway 2003-7-27 7929 Humboldt North Coast. On ridge between Stone Lagoon, Dry Lagoon and the beach (Sharp Point). Along trail. 823 Comment
  UC562429  Carex bolanderi Joseph P. Tracy 1936-5-29 14823 Humboldt French Camp Ridge 1066 Comment
  UC562712  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt on ridge 2 mi sw top; Salmon Summit 1767 Comment
  CAS-BOT-BC34010  Carex brevicaulis Joseph Prince Tracy 1939-5-7 16276 Humboldt Sand Dunes, near Samoa, on Humboldt Bay. 6 Comment
  HSC45435  Carex buxbaumii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt Along FS 2S08 near Pine Mtn. 1463 Comment
  UC1103602  Carex concinnoides Joseph P. Tracy 1927-6-12 8145 Humboldt Horse Mountain 1432 Comment
  UC562721  Carex concinnoides Joseph P. Tracy 1935-6-2 13922 Humboldt Big Lagoon 3 Comment
  UC562722  Carex concinnoides Joseph P. Tracy 1927-6-19 8190 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 60 Comment
  UC1115815  Carex cusickii Joseph P. Tracy 1938-7-6 16023 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC34982  Carex densa Joseph Prince Tracy 1938-6-9 15877 Humboldt Dobbyn Creek. 152 Comment
  UC303071  Carex densa Joseph P. Tracy 1912-7-31 3906 Humboldt on nw slope of Buck Mountain Northern Coast Ranges, Burr Valley, Buck Mountain 1066 Comment
  JEPS79839  Carex densa Joseph P. Tracy 1936-6-3 14847 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
Read comments
Nov 1 2009
  UC1103113  Carex deweyana subsp. leptopoda Joseph P. Tracy 1937-6-20 15344 Humboldt 10 mi up stream mouth of Bear River; Bear River 152 Comment
  HSC96552  Carex echinata subsp. phyllomanica Gordon Leppig 1997-6-19 445 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC19964  Carex exsiccata Joseph Prince Tracy 1934-7-13 13388 Humboldt Dow's Prairie. 60 Comment
  POM126509  Carex feta Joseph P. Tracy 1921-6-12 5828 Humboldt Butler Valley. 152 Comment
  JEPS25967  Carex globosa Joseph P. Tracy 1932-4-23 9832 Humboldt Englewood North Coast Ranges, Englewood 91 Comment
  UC562729  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Northern Costa Ranges. Phillipsivelle, facing south Fork of Eel River. Comment
  CAS-BOT-BC146591  Carex gynodynama H. D. Ripley; R. C. Barneby 1945-6-16 6812 Humboldt 2.5 miles N. of Miranda Comment
  CAS-BOT-BC146619  Carex gynodynama Alice Eastwood; John Thomas Howell 1937-6-22 4750 Humboldt 8 1/2 miles from Blocksburg on road to Bridgeville Comment
  CAS-BOT-BC22314  Carex harfordii Joseph Prince Tracy 1938-6-15 15934 Humboldt Vicinity of Carlotta. 30 Comment
  CAS-BOT-BC20461  Carex harfordii Joseph Prince Tracy 1939-7-9 16316 Humboldt Bald Mountain. 1 mile north of Murphy Meadows. 914 Comment
  CAS-BOT-BC21751  Carex hassei Joseph Prince Tracy 1927-4-23 7917 Humboldt Big Lagoon. 6 Comment
  UC562719  Carex hassei H. E. Parks and Joseph P. Tracy 1931-5-9 9401 Humboldt vicinity Trinidad; Bishop Pine Lodge 60 Comment
  SEINET3901641  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Eel River: Bull Creek at South Fork of.; 0 Comment
  CAS-BOT-BC7564  Carex integra Joseph Prince Tracy 1935-7-23 14139 Humboldt Trinity Summit. Open places at Corral Prairie. 1584 Comment
  CHSC85986  Carex laeviculmis L. P. Janeway 2003-7-30 7946 Humboldt High North Coast Ranges. Small spring and seep 100 m south-west of Clear Lake, 3.1 km southeast of Titlow Hill. 1494 Comment
  HSC98934  Carex laeviculmis Cara Witte 2007-7-11 480 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  CHSC93262  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8583 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC102224  Carex leptopoda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1143 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC31822  Carex mendocinensis Joseph Prince Tracy 1935-7-14 14086 Humboldt Along streamlet Grouse Mountain. 1524 Comment
  HSC85707  Carex mendocinensis L. P. Janeway 1982-6-20 14 Humboldt S of Horse Mtn., along Rd. 6N36, 100 m N of Titlow Hill Rd. 1384 Comment
  HSC70470  Carex microptera Gail Newton 1980-7-20 1639 Humboldt Near Bell Swamps 1426 Comment
  HSC82414  Carex microptera Thomas W. Nelson 1979-7-11 5033 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  HSC73962  Carex multicaulis Gail Newton 1980-6-7 126 Humboldt Near Brush Mtn. 1128 Comment
  SEINET4292202 Image available Carex multicostata Unknown 2003-1 7945 Humboldt High North Coast Ranges. At upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. Grouse Mountain Quad. Comment
  HSC44075  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-7-1 2932 Humboldt W of Mount Lassic (Signal Peak) 1677 Comment
  CHSC34063  Carex nudata Joseph P. Tracy 1911-6-4 3220 Humboldt Northern Coast Region. Along Little River, 5 miles from the coast. 121 Comment
  JEPS80024  Carex nudata Joseph P. Tracy 1911-6-4 3221 Humboldt along Little River 5 mi from coast; Northern Coast Region, Little River 121 Comment
  UC562447  Carex nudata Joseph P. Tracy 1935-6-22 13959 Humboldt mouth Larrabee Creek; North Coast Ranges, Eel River 45 Comment
  HSC7187  Carex obnupta D. R. Junell 1965-5-2 40 Humboldt 1 mi. S of Fairhaven on Samoa Peninsula Comment
  HSC37833  Carex obnupta Thomas W. Nelson 1976-3-4 2263 Humboldt Eureka, beside Buhne St. between S St. and Harrison Ave. Comment
  HSC76819  Carex obnupta L. P. Janeway 1982-8-7 112 Humboldt Along Prairie Creek, ~5 mi. N of Prairie Creek Campground along Hwy. 101 183 Comment
  SEINET7569469 Image available Carex obnupta David Castaner 1989-6-19 10249 Humboldt Fern Canyon. Comment
  JEPS80014  Carex ovalis Joseph P. Tracy 1926-6-20 7631 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1463 Comment
  CAS-BOT-BC119270  Carex ovalis Joseph Prince Tracy 1936-6-28 15014 Humboldt Bald Mt. Borders of ditch in woods near Murphy Meadow. 1066 Comment
  UC1103088  Carex pachystachya Joseph P. Tracy 1926-5-15 7487 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC562641  Carex pachystachya Joseph P. Tracy 1935-6-8 13936 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC98595  Carex pachystachya Cara Witte 2008-8-6 1017 Humboldt Intersection of Forest Service Road 4E27 and National Forest 1. South of trail to Board Camp Butte. 1479 Comment
  UC562663  Carex pachystachya Joseph P. Tracy 1927-5-29 8077 Humboldt Big Lagoon Northern Coast Region 6 Comment
  BLMAR70  Carex pansa Jennifer Anthony-Wheeler 1994-5-18 70 Humboldt Samoa/manilla dunes, growing intermittently in wet area in the samoa dunes rec. area 6 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
  HSC102114  Carex spectabilis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1018 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SEINET10856669  Carex stipata Joseph P. Tracy 1931-5-17 Tracy 9422 Humboldt Lack Pond; in Trinity River Valley, opposie mouth of Willow Creek. 152 Comment
  CHSC102860  Carex subbracteata Peter F. Zika 2009-6-16 24500 Humboldt Outer North Coast Range. Above Route 299, 0.7 road miles W of Berry Summit. 780 Comment
  HSC71720  Carex subfusca M. A. Baker 1980-6-26 2467 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC115568  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4736 Humboldt Near Alder Point Comment
  CHSC106512  Carex tumulicola Peter F. Zika 2009-6-15 24495 Humboldt Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits, above Route 299, 2.3 road miles W of junction with Chezen Road. 680 Comment
  UC1103085  Carex unilateralis Joseph P. Tracy 1928-6-24 8471 Humboldt valley of South Yager Creek 762 Comment
  CAS-BOT-BC115542  Carex unilateralis Joseph Prince Tracy 1933-6-9 12539 Humboldt Fortuna, Bed of winter pool. 18 Comment
  UC562627  Carex unilateralis Joseph P. Tracy 1933-6-9 12539 Humboldt Fortuna 18 Comment
  HSC103141  Carex utriculata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1067 Humboldt Patterson Meadows 1555 Comment
  UC1152051  Carex utriculata Joseph P. Tracy 1950-7-25 19065 Humboldt near McKay Camp; South Fork Mountain 1676 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
  CAS-BOT-BC115065  Carex vesicaria Joseph Prince Tracy 1934-7-18 13428 Humboldt In shallow pond, Grouse Mountain. 1524 Comment
  SEINET201052  Carex viridula Joseph P. Tracy 1934-7-30 13505 Humboldt Along coast in front of South End of Stone Lagoon. Dry Lagoon. 3 Comment
  CAS-BOT-BC281885  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie on ridge 1 mile N above Bull Creek, ca 2 miles W of Dyerville Comment
  POM283642  Castilleja Lyman Benson 1929-7-19 1852 Humboldt Mouth of Matole [Mattole] River. Comment
  UC382597  Castilleja Joseph P. Tracy 1925-8-14 7230 Humboldt near Samoa (Samoa Sand Dunes, on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  HSC20571  Castilleja affinis subsp. litoralis R. E. Hafenfeld 1965-5-9 29 Humboldt 1/2 mi. S of Squashan Cr. Jct. Gold Bluff Beach Rd. Comment
  HSC20579  Castilleja affinis subsp. litoralis D. J. Jager 1965-5-12 67 Humboldt 0.5 mi. N of Trinidad on bluff above the ocean 46 Comment
  JEPS55949  Castilleja affinis subsp. litoralis T. I. Chuang and L. R. Heckard 1968-7-3 6456 Humboldt Table Bluff Comment
  UC1196854  Castilleja affinis subsp. litoralis Joseph P. Tracy 1920-7-4 5342 Humboldt mouth of Little River; Northern Coast Ranges 15 Comment
  HSC90430  Castilleja ambigua subsp. humboldtiensis Jean Hanson 1980-6-22 97 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  HSC55831  Castilleja applegatei G. L. Clifton 1979-7-25 10745 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC56005  Castilleja arachnoidea Overton, Butler 1979-7-31 11467 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC35027  Castilleja attenuata Thomas W. Nelson, James Nelson 1975-5-24 1847 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UCD122407  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Manila Dunes ACEC. 3 Comment
  JEPS15207  Castilleja exserta subsp. exserta R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quad. Comment
  HSC92193  Castilleja mendocinensis E. Mackey 1986-7-6 Humboldt Patrick's Point State Park, on trail to Wedding Rock. Comment
  CAS-BOT-BC244881  Castilleja miniata Milo S. Baker 1927-8-21 2486 a Humboldt Vicinity of Bald Mt. 914 Comment
  HSC31218  Castilleja pruinosa D. E. Anderson 1972-6-20 5731 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC44427  Castilleja pruinosa Brad Klipfel 1975-5-30 645 Humboldt Horse Mtn. Comment
  HSC70695  Castilleja pruinosa Gail Newton 1980-7-15 1558 Humboldt Near Sims Mtn. 1311 Comment
  UC582476  Castilleja pruinosa Joseph P. Tracy 1933-7-11 12674 Humboldt Horse Mountain 1432 Comment
  HSC72569  Castilleja pruinosa J. P. Smith, J. O. Sawyer 1976-5-2 8628 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 Comment
  JEPS88837  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7876 Humboldt Horse Mt. Comment
  HSC39058  Castilleja rubicundula subsp. lithospermoides Thomas W. Nelson, Jane P. Nelson 1976-5-31 2644 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  CAS-BOT-BC49655  Ceanothus foliosus var. foliosus Dr. A. Kellogg; W. G. W. Harford 1868-1-1 s.n. Humboldt Red Mt. Route Comment
  HSC101665  Ceanothus foliosus var. foliosus J. P. Smith, J. O. Sawyer 2011-4-23 13126 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  HSC36676  Ceanothus foliosus var. foliosus R. Sutherland 1975-7-7 1 .7775 Humboldt Bank of Eubanks Creek 259 Comment
  CAS-BOT-BC50043  Ceanothus incanus M. S. Jussel 1931-5-2 114 Humboldt Garberville Comment
  UC668165  Ceanothus incanus Joseph P. Tracy 1935-5-25 13824 Humboldt Larrabee Creek; near Bosworth's 304 Comment
  HSC48784  Ceanothus integerrimus Brad Klipfel 1975-6-17 662 Humboldt Along Titlow Hill Rd. Comment
  HSC60024  Ceanothus integerrimus M. A. Baker 1978-5-6 474 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  HSC98731  Ceanothus integerrimus Cara Witte 2007-8-9 635 Humboldt Friday Ridge Road/ 6N08. 1.5 miles north of intersection with Forest Service Road 5N09. 1383 Comment
  UC1198012  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13182 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA95358  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC51216  Ceanothus parryi Mrs. H. C. Cantelow 1935-5-30 829 Humboldt N. of Garberville Comment
  HSC43184  Ceanothus parryi R. Sutherland 1975-4-22 6 .22475 Humboldt Near China Creek at county rd. 207 Comment
  CAS-BOT-BC52223  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11089 Humboldt Summit of Trinidad Head 45 Comment
  HSC101668  Ceanothus thyrsiflorus J. P. Smith, J. O. Sawyer 2011-4-23 13129 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  HSC59634  Ceanothus thyrsiflorus J. P. Smith 1973-5-26 6867 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  RSA77347  Ceanothus thyrsiflorus F. W. Peirson 1926-7-12 70431 Humboldt Orick Comment
  BLMAR198  Ceanothus velutinus Donald Hazlett 1994-6-7 198 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC44507  Ceanothus velutinus Brad Klipfel 1973-7-1 120 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM89164  Ceanothus velutinus Joseph P. Tracy 1919-9-24 5295 Humboldt Trinity Summit 1829 Comment
  HSC74217  Ceanothus velutinus var. velutinus M. A. Baker 1980-7-23 3177 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC277174  Centaurea X moncktonii Earle Mills 1933-10-27 s.n. Humboldt Eureka Comment
  UC1222951  Centaurea cyanus Joseph P. Tracy 1943-11-28 17456 Humboldt near Alton (Eel River bar at mouth of Van Duzen); Eel River, Van Duzen Comment
  CDA36344  Centaurea jacea Domenic Bongio 2011-11-15 PDR# 1414345 Humboldt Trinidad; Hwy 101 at mile-maker 104.05 near Patrick s Point Dr. 0 Comment
  CDA7304  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 Comment
  UC153952  Centaurium davyi Joseph P. Tracy 1907-7-4 2585 Humboldt 0.5 mi n mouth of Little River; Northern Coast Ranges 15 Comment
  UC1198629  Centaurium muehlenbergii Joseph P. Tracy 1942-7-18 17283 Humboldt Garberville 152 Comment
  JEPS46931  Centaurium muehlenbergii Joseph P. Tracy 1931-8-9 9610 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  RSA185429  Centaurium muehlenbergii Clare B. Hardham 1965-08 12858 Humboldt South fork of Eel River. Comment
  JEPS113353  Centaurium tenuiflorum Jeff Greenhouse 2003-8-27 5117 Humboldt Hwy 101 Comment
  UCD121519  Centaurium tenuiflorum Joseph P. Tracy 1948-8-22 18109 Humboldt Van Duzen River, 4 miles E. of Carlotta. 30 Comment
  HSC99675  Cephalanthus occidentalis J. Wendell Howe 1934-7-9 1293 Humboldt Near Weaverville Comment
  UC162888  Cerastium arvense Harley P. Chandler June, 1901 1384 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  CAS-BOT-BC384905  Cerastium arvense Kenneth Clark 1980-4-18 599 Humboldt Shelter Cove. Above Dead Man's Gulch 175 Comment
  UC161007  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1907-5-20 2561 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UCSB1850  Cerastium glomeratum Parks, H.; Parks, S. 1944-04 Humboldt Spruce Cove, Trinidad 60 Comment
  CAS-BOT-BC388225  Cerastium glomeratum Alice Eastwood 1907-4-21 15 Humboldt Port Trinidad Comment
  HSC4106  Cerastium glomeratum R. D. Modafferi 1965-3-19 57 Humboldt .5 mi. S of Trinidad on Hwy. 101 305 Comment
  UC1198736  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1903-5-23 1904 Humboldt along Eel River, at Alder Point Eel River; Northern Coast Ranges, , Alder Point 152 Comment
  HSC1193  Chamaecyparis lawsoniana J. C. Reppas 1963-3-2 50 Humboldt 820 Fickle Hill Rd. Comment
  CAS-BOT-BC166046  Chamerion angustifolium subsp. circumvagum T. G. W. 1923-1-1 s.n. Humboldt Arcata Comment
  HSC76626  Chamerion angustifolium subsp. circumvagum Teresa Prendusi 1981-7-24 490 Humboldt Near Whiteys Peak 1585 Comment
  SEINET200780  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1932-7-17 10664 Humboldt Ridges east of Corral Prairie. 1676 Comment
  RSA53826  Chenopodium ambrosioides var. ambrosioides H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  RSA246908  Chenopodium botrys R. F. Thorne, P. Everett 1965-8-8 35263 b Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  RSA478469  Chenopodium botrys M. B. Dunkle 1936-8-22 4860 Humboldt Williams Grove, Eel River. 213 Comment
  RSA53850  Chenopodium botrys H. M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  CAS-BOT-BC451380  Chimaphila menziesii L. B. Kildale 1930-8-10 10530 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC17948  Chimaphila menziesii D. E. Anderson 1963-5-18 2449 Humboldt Near junction of New and Trinity Rivers Comment
  SEINET10539751  Chimaphila menziesii Botany 1985-5-10 BOTANY s.n. Humboldt T5n,r6e,sec.34, h.m.; Grays falls campground off hwy 299. Shaded understory, Douglas fir, madrone, canyon live oak 241 Comment
  HSC54228  Chimaphila umbellata Griswold, Butler 1979-7-12 7294 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC54864  Chimaphila umbellata G. L. Clifton, Griswold 1979-7-25 10770 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS58861  Chimaphila umbellata Chesnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  UC1225900  Chimaphila umbellata Joseph P. Tracy 1947-7-9 17856 Humboldt Horse Mt. 1432 Comment
  UC665684  Chrysolepis chrysophylla var. minor J. P. Tracy and H. E. Parks 1941-8-28 11541 Humboldt Blake Lookout area; South Fork Mountain 1706 Comment
  UCD110101  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1936-8-7 15117 Humboldt Trinity Summit. 2 miles southeast of Devil's Hole. 1584 Comment
  UC503101  Chrysolepis sempervirens Joseph P. Tracy Jul 16 1930-Jul 19 1930 8951 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC8634  Cicuta douglasii D. E. Anderson 1961-9-30 1850 Humboldt Blue Lake Comment
  HSC58807  Cinna latifolia G. L. Clifton 1979-7-31 11865 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC38627  Circaea alpina subsp. pacifica D. E. Anderson, J. P. Smith 1971-6-18 - 1101 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  SEINET12189144  Circaea alpina subsp. pacifica H. P. Chandler 1901-1 1404 Humboldt Klamath River 366 Comment
  UC162349  Circaea alpina subsp. pacifica Joseph P. Tracy 1911-7-5 3311 Humboldt near its mouth Willow Creek; Northern Coast Ranges, Willow Creek (tributary of Trinity R. 304 Comment
  CAS-BOT-BC284438  Cirsium brevistylum Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  UCR115124  Cirsium brevistylum B. Villegas 1998-8-4 s.n. Humboldt North Coast Ranges, Hwy 299 between mileposts 21.5 and 18, near Willow Creek. 415 Comment
  CAS-BOT-BC284440  Cirsium brevistylum L. R. Abrams 1916-7-18 6082 Humboldt Between Cercata and Trinidad Comment
  UC249823  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 Humboldt near Ruby Creek (on the Willow Creek Highway); Northern Coast Ranges 609 Comment
  UC166542  Cirsium quercetorum J. P. Tracy 1901-6-16 1138 Humboldt immediate vicinity of Eureka 0 Comment
  HSC32535  Cirsium vulgare Thomas W. Nelson 1973-9-3 1127 Humboldt McKeown Ranch N of Dinsmore Comment
  UCD130816  Cirsium vulgare R. E. Nelson 1956-7-3 192 a Humboldt 1.5 miles south of Brush Mountain in vicinity of Salyer , Six Rivers National Forest. 792 Comment
  UC144096  Clarkia amoena Joseph P. Tracy Jun 27 1908-Jun 30 1908 2757 Humboldt nw slope Buck Mountain (at bridge across river); Northern Coast Ranges, Little Van Duzen River 609 Comment
  CAS-BOT-BC160962  Clarkia amoena subsp. amoena L. R. Abrams 1916-7-11 5979 Humboldt [Blocksberg] Blocksburg Comment
  CAS-BOT-BC160948  Clarkia amoena subsp. amoena A. A. Heller 1924-7-23 13879 Humboldt Along the highway between Little River and Trinidad Comment
  CAS-BOT-BC160951  Clarkia amoena subsp. amoena Doris K. Kildale 1928-6-24 5291 Humboldt Horse Mountain cut-off, near junction of Willow Creek road 853 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
  POM228379  Clarkia amoena subsp. amoena S. K. Harris 1936-6-25 671 Humboldt South side of Domingo Gulch on road from Petrolia to Cape Mendocino 30 Comment
  RSA226613  Clarkia amoena subsp. amoena Norman Dennis 1965-6-19 133 Humboldt 1/4 mile S and 1 mile E of the jct of Barry Ridge Road and the Eureka-Bridgeville country road, along Ashfield Ridge Road, 5 miles SE of Kneeland. 793 Comment
  UC169900  Clarkia concinna subsp. concinna Mrs. M. H. Manning 1901-1 75 Humboldt near Hupa Comment
  UC184710  Clarkia davyi Joseph P. Tracy 1912-7-21 3771 Humboldt Alton Northern Coast Region 30 Comment
  UC162342  Clarkia davyi Joseph P. Tracy 1911-6-25 3256 Humboldt bluffs back of Bucksport (region about Humboldt Bay); Northern Coast Region 0 Comment
  JEPS43694  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1936-6-10 14935 Humboldt mountain slopes w of mouth South Fork Trinity River 609 Comment
  LA47441  Clarkia gracilis subsp. gracilis Joseph P. Tracy; 1913-6-11 4091 Humboldt lower foothills of Buck Mountain, on its NW slope 761 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-BC172505  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1928-6-24 5293 Humboldt Horse Mountain Road near junction of Willow Creek Road 853 Comment
  UC1196982  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1913-7-20 4384 Humboldt near Berry's; Northern Coast Ranges, Redwood Creek 304 Comment
  UC902106  Claytonia perfoliata subsp. intermontana Joseph P. Tracy 1949-6-6 18306 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC39529  Claytonia saxosa Thomas W. Nelson 1976-6-14 2708 Humboldt S of Lassic Peak 1524 Comment
  HSC65469  Claytonia saxosa M. A. Baker 1980-6-8 1918 Humboldt Near Buck Flat. 1554 Comment
  UC672988  Claytonia sibirica Joseph P. Tracy 1937-7-2 15388 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC443901  Claytonia sibirica Ira L. Wiggins 1957-6-20 14129 Humboldt East side of highway, Trinidad Comment
  HSC17725  Claytonia sibirica D. E. Anderson 1962-3-31 1970 Humboldt Coastal area of Prairie Creek State Park Comment
  RSA137345  Claytonia sibirica I. L. Wiggins 1957-6-20 14129 Humboldt East side of highway, Trinidad Comment
  SEINET11933917  Claytonia sibirica F. H. Utech 1986-1 86 -417 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  HSC14644  Clianthus puniceus R. A. Magie 1964-5-3 58 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  UCD40028  Clinopodium douglasii Rodney Gale Myatt 1971-9-17 1107 Humboldt near Phillipsville, above river, about 8 miles north of Gaberville, along Hwy 101. Comment
  POM109524  Clintonia andrewsiana Marcus E. Jones 1924-4-28 s.n. Humboldt Scotia. Comment
  HSC15451  Clintonia andrewsiana E. W. Styskel 1963-5-19 52 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  RSA39092  Clintonia andrewsiana Philip A. Munz 1948-8-15 12359 Humboldt Van Duzen Redwood State Park. Comment
  HSC58065  Clintonia uniflora G. L. Clifton, Griswold 1979-8-1 11943 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC499962  Clintonia uniflora Doris K. Kildale 1926-6-9 2135 Humboldt Horse Mountain 1219 Comment
  CDA3701  Coincya monensis Jim Belsher 1997-2-13 2 Humboldt Lot ESE of the Manila Community Services District sewage pump station Comment
  JEPS14933  Collinsia grandiflora H. E. Parks and J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley 762 Comment
  RSA46712  Collinsia grandiflora Doris K. Kildale 1926-4-25 1815 Humboldt Hoopa Mt. Comment
  UC147865  Collinsia grandiflora Joseph P. Tracy 1908-6 2709 Humboldt opposite Buck Mtn Valley of Van Duzen River; North Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC73584  Collinsia linearis Gail Newton 1980-7-14 1492 Humboldt Near Last Chance Ridge. 1219 Comment
  JEPS13757  Collinsia linearis Frank W. Gould 1939-5-30 831 Humboldt Horse Mtn 762 Comment
  UC1196755  Collinsia linearis Joseph P. Tracy 1919-5-31 5155 Humboldt near Willow Creek (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1222822  Collinsia linearis Joseph P. Tracy 1951-6-16 19475 Humboldt Summit of Siskiyous at crossing of the Takilma-Happy Camp Road near State Line Summit of Siskiyous Comment
  HSC45793  Collinsia parviflora J. P. Smith, J. O. Sawyer 1973-5-12 6691 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC48744  Collinsia parviflora Brad Klipfel 1973-6-10 80 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS7057  Collinsia torreyi var. wrightii Joseph P. Tracy 1935-7-28 14314 Humboldt head of Devil's Hole Trinity Summit 1828 Comment
  UC582447  Collinsia torreyi var. wrightii Joseph P. Tracy 1935-7-28 14314 Humboldt Trinity Summit, Head of Devils Hole Head of Devils Hole; Trinity Summit, Head of Devils Hole 1828 Comment
  RSA135456  Collomia grandiflora Volney Rattan 1878-1 s.n. Humboldt Humboldt. Comment
  HSC53963  Collomia heterophylla Griswold, Butler 1979-7-11 7017 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC1537481  Collomia heterophylla Gordon H. True 1936-5-11 458 Humboldt 10 mi w Miranda (w slope); Salmon Creek 457 Comment
  HSC16936  Collomia tracyi J. P. Tracy 1927-6-12 8161 Humboldt Horse Mtn. 1067 Comment
  SBBG103147  Collomia tracyi D. H. Wilken with C. Donahue 1976-7-16 12708 Humboldt Horse Mtn Natural Area, N of Berry Summit 1310 Comment
  HSC69531  Conium maculatum R. Kalal 1980-6-1 4 Humboldt 0.25 mi. N of Hwy. 299, at Essex turnoff 15 Comment
  HSC67014  Conyza canadensis J. P. Smith 1971-10-9 4988 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC165028  Conyza canadensis J. P. Tracy 1906-8-18 2540 Humboldt immediate vicinity Eureka 0 Comment
  JEPS41827  Conyza canadensis W. L. Jepson 1936-8-13 17897 Humboldt Philipsville South Fork Eel River Comment
  SEINET10474193  Conyza canadensis Mary Susan Taylor 1982-10-24 Taylor 5182 A Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC1222190  Corallorhiza maculata Joseph P. Tracy 1950-7-2 18972 Humboldt ridge e Grove's Prairie (near Elk Camp, 6 mi ne of Hawkins Bar); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC16583  Corallorhiza mertensiana Doris K. Kildale 1926-5-2 1846 Humboldt Bald Mtn. road, between Bald Mtn. House and junction of Redwood Creek Road. Comment
  JEPS21706  Cordylanthus maritimus subsp. palustris Malcolm A. Nobs, S. Galen Smith 1949-8-3 1200 Humboldt 2 mi n Eureka (salt marshes bordering Humboldt Bay) Comment
  JEPS6785  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1938-8-14 16118 Humboldt South Fork of Trinity River (mountain slopes w of its mouth) 304 Comment
  HSC100234  Cordyline australis J. P. Smith 2010-5-29 12891 Humboldt Eureka; Near intersection of West Del Norte St. and Railroad Ave. Comment
  CAS-BOT-BC101142  Corethrogyne filaginifolia Joseph P. Tracy 1936-7-10 15046 Humboldt Vicinity of Carlotta 30 Comment
  UC165018  Corethrogyne filaginifolia Joseph P. Tracy 1909-7-18 3016 Humboldt Humboldt Bay Comment
  UC581780  Corethrogyne filaginifolia Joseph P. Tracy 1928-5-20 8442 Humboldt near Petrolia Comment
  HSC39628  Cornus nuttallii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2733 Humboldt Just W of Goat Hill, along branch road off FS 2S08 1463 Comment
  HSC6408  Cornus nuttallii John A. Dubois 1962-5-12 8 Humboldt 20 mi. E of Arcata. Comment
  HSC65074  Cornus nuttallii J. P. Smith, Steve Selva 1970-6-14 3853 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  RSA167408  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity River Valley, at Willow Creek. Comment
  RSA46900  Cornus nuttallii Doris K. Kildale 1925-8-13 1134 Humboldt Willow Creek, bank of Trinity River. 152 Comment
  UC205636  Cornus nuttallii Joseph P. Tracy 1919-9-14 5213 Humboldt near its mouth Willow Creek - Northern Coast Ranges, Willow Creek (a tributary of Trinity) Comment
  CAS-BOT-BC212175  Cornus sericea Doris K. Kildale 1925-6-27 769 Humboldt Yager Creek near mouth. Comment
  HSC41000  Cornus sericea subsp. sericea J. O. Sawyer 1975-10-17 2710 Humboldt S slopes of N Trinity Mtn. Comment
  CAS-BOT-BC210539  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat 152 Comment
  RSA46468  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat. Comment
  UC249591  Cornus sessilis Joseph P. Tracy 1921-8-21 5945 Humboldt Three Creeks Northern Coast Ranges, Three Creeks 670 Comment
  UC249592  Cornus sessilis Joseph P. Tracy 1921-8-21 5941 Humboldt Trinity R. at mouth of S. Fork <Trinity R.>; Northern Coast Ranges, Trinity R. 152 Comment
  HSC93467  Cortaderia jubata Gordon Leppig 1998-10-26 1107 Humboldt Arcata, Bayside Rd. at Crescent Way 6 Comment
  UC1197932  Corylus californica Joseph P. Tracy 1923-8-19 6538 Humboldt Lawrence Creek near Kneeland Prairie Comment
  UC1222290  Corylus californica Joseph P. Tracy 1950-7-31 19226 Humboldt about 1 mi N of Friday's Camp (where road crosses side of Friday Ridge) Comment
  UC55959  Corylus californica Joseph P. Tracy 1901-6-23 1176 Humboldt near Ryan's Slough Hill Eureka, immediate vicinity of 0 Comment
  UC667997  Corylus californica Joseph P. Tracy 1938-7-6 16027 Humboldt Big Lagoon Prairie 15 Comment
  CAS-BOT-BC172849  Corylus cornuta subsp. californica Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick Comment
  HSC76056  Corylus cornuta subsp. californica Overton, Butler 1979-8-2 12590 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  OBI20563  Corylus cornuta subsp. californica Joseph P. Tracy 1946-8-25 17639 Humboldt Along Hookton Rd Comment
  HSC104410  Corylus cornuta subsp. californica Adam N. Canter 2017-6-15 9 Humboldt Near Fields Landing; Humboldt Hill, Spring Street 100 Comment
  CAS-BOT-BC143486  Cotoneaster franchetii Peter F. Zika 2007-7-18 23172 Humboldt Near corner of C Street and 14th Street, Eureka (NCo, North Coast) 10 Comment
  RSA730001  Cotoneaster pannosus Peter F. Zika 2007-7-20 263324 Humboldt NCo, North Coast: Lynda Lane near high school, S end of Big Lagoon. 20 Comment
  SEINET3817861  Cotula coronopifolia E. G. Kynoch Jr. 1966-10-7 405 Humboldt Clam Beach near Little River State Park 2 Comment
  CAS-BOT-BC291343  Cotula coronopifolia H. E. Parks 1941-9-1 24211 Humboldt Little River State Park Comment
  UC492244  Crassula connata var. subsimplex Joseph P. Tracy 1932-3-20 9786 Humboldt coast bluffs near Trinidad; Northern Coast Ranges 30 Comment
  HSC97308  Crataegus suksdorfii M. Mesler 2006-6-6 610 Humboldt Big Hill Rd. 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  JEPS27144  Crepis capillaris H. E. Parks August, 1941 24189 Humboldt vicinity of Trinidad Comment
  UC1199456  Crepis capillaris Joseph P. Tracy 1901-6-16 1142 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC291486  Crepis capillaris H. E. Parks 1941-8-1 24189 Humboldt Vicinity of Trinidad Comment
  RSA15572  Crepis capillaris C. B. Wolf 1927-8-28 1188 Humboldt Eureka Bay on Arcata road Comment
  UC1223028  Crepis occidentalis Joseph P. Tracy 1951-6-26 19575 Humboldt Twin Lakes vicinity Comment
  HSC31207  Crepis pleurocarpa D. E. Anderson 1972-6-20 5742 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC1223025  Crepis pleurocarpa Joseph P. Tracy 1947-7-9 17846 Humboldt Horse Mountain; top 1432 Comment
  RSA113706  Crepis setosa Joseph P. Tracy 1948-9-20 18215 Humboldt Hoopa Valley 107 Comment
  UCD130992  Crocidium multicaule Roman Gankin; W. R. Hildreth 1966-3-15 700 Humboldt Klamath River canyon, State Highway 96, 4.6 miles north of Hoopa. Comment
  HSC7973  Croton setiger H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC102928  Cryptantha M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 900 Humboldt Patterson Meadows 1566 Comment
  UC1239663  Cryptantha affinis Joseph P. Tracy 1939-8-5 16386 Humboldt Dinsmore's 737 Comment
  HSC104443  Cryptantha leiocarpa Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 3 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC1222272  Cryptantha milobakeri Joseph P. Tracy 1949-8-11 18469 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek, electric power line southward); Kinsey Ridge 1280 Comment
  UC175786  Cryptantha torreyana J. P. Tracy 1903-5-22 1879 Humboldt Alder Point Bridge Eel River 152 Comment
  UC179963  Cryptantha torreyana Joseph P. Tracy 1914-7-5 4560 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC594247  Cryptantha torreyana S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3425 Humboldt nw slopes Buck Mountain 822 Comment
  UC71489  Cryptogramma acrostichoides Joseph Burtt Davy and W. C. Blasdale 1899-6-21 5844 Humboldt Trinity Summit Comment
  HSC44543  Cuscuta occidentalis Brad Klipfel 1973-7-15 162 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC59455  Cuscuta pacifica var. pacifica M. A. Ericksen 1979-5-18 302 Humboldt At edge of Humboldt Bay mud flats, 75 yards N of Arcata Redwood Company main gate, Hwy. 101 between Arcata and Eureka Comment
  CHSC56529  Cynoglossum grande L. P. Janeway 1984-5-6 758 Humboldt Berry Summit; above old (abandoned) Hwy 299 just west of the Summit. 86 Comment
  UC582617  Cynoglossum occidentale Joseph P. Tracy 1936-8-8 15125 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  UCD60130  Cynosurus cristatus Peter H. Raven; R. Snow 1958-7-21 13657 Humboldt 2 miles north of Cape Mendocino. Comment
  SEINET11696011  Cynosurus cristatus Unknown 1956-7-19 s.n. Humboldt 4.5 mi NW of Petrolia Comment
  UC1103240  Cynosurus echinatus Joseph P. Tracy 1948-6-13 18047 Humboldt Dobbyn Creek 152 Comment
  UC1145094  Cynosurus echinatus Joseph P. Tracy 1950-6-23 18865 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); Dobbyn Creek 213 Comment
  RSA91852  Cynosurus echinatus Joseph P. Tracy, H. E. Parks 1933-6-11 12542 Humboldt Near Miranda 152 Comment
  HSC79516  Cyperus eragrostis Kenneth Clark 1980-3-24 544 Humboldt Shelter Cove, N fork of Deadman's Gulch 69 Comment
  UCR3545  Cyperus eragrostis David Whistler, H. M. Whistler 1964-7-29 640729- 2 Humboldt North Coast Range, US 101, [South Fork Eel River] across the street from Myers Flat Store 63 Comment
  CAS-BOT-BC114624  Cyperus eragrostis Joseph Prince Tracy 1935-7-17 14099 Humboldt Trinity River Valley at Willow Creek. 152 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
  CAS-BOT-BC114060  Cyperus squarrosus Henry M. Pollard 1941-8-16 s.n. Humboldt Along river near Orleans. Comment
  CAS-BOT-BC133727  Cypripedium californicum E. P. Chase 1933-7-1 2008 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  JEPS35194  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt S. Fork Eel River Comment
  RSA783324  Cytisus scoparius R. R. Halse 2010-3-25 7856 Humboldt Along US Hwy 101 ca. 9.7 miles S of Orick. 5 Comment
  HSC14665  Cytisus scoparius var. andreanus S. S. Stutz 1963-5-18 54 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC89495  Dactylis glomerata P. A. Daly 1986-2-23 54 Humboldt Trinidad Head 61 Comment
  HSC9529  Dactylis glomerata John Warner Hosking 1966-8-6 Humboldt Fern Lake, behind Humboldt State College campus, Arcata Comment
  RSA126598  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E of mouth of Mad River. 30 Comment
  HSC72622  Danthonia californica J. P. Smith 1977-7-3 9231 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  UC37946  Danthonia californica Harley P. Chandler May, 1901 1239 Humboldt North Coast Ranges; Redwood Belt 91 Comment
  UC187246  Danthonia californica var. americana Joseph P. Tracy 1906-6-24 2510 Humboldt Humboldt Hill Northern Coast Region, region about Humboldt Bay (s slope) 0 Comment
  UCD60968  Danthonia californica var. americana R. Tofsrud 1947-7-28 Humboldt Between Capetown and Ferndale. 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
  UC402443  Darmera peltata P. E. Goddard 1901-7 173 Humboldt Klamath River Comment
  UC666823  Darmera peltata Joseph P. Tracy 1933-6-7 12517 Humboldt Blue Slide Van Duzen River (on the Van Duzen River) 91 Comment
  RSA520566  Datisca glomerata M. Hanson 1990-5-22 84 Humboldt In the Trinity River, 75 meters E of the Hwy 96 bridge N of Hoopa. Comment
  SEINET5744809 Image available Daucus carota Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6111 Humboldt Collected in a waste area along Giuntoli Lane in Arcata. Adjacent to Eureka Sand and Gravel company and across the road from T.P. Tire Service (1265 Giuntoli Lane).; Arcata Comment
  BLMAR173  Daucus pusillus Donald Hazlett 1994-6-7 173 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1197352  Daucus pusillus Joseph P. Tracy 1901-8-2 1248 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC97592  Delphinium decorum subsp. tracyi Steven Lee 2004-4-26 29 Humboldt Horse Mtn., 5 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  UC160929  Delphinium decorum subsp. tracyi Harley P. Chandler June 1901 1289 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  HSC100367  Delphinium decorum subsp. tracyi J. McRae 2010-6-23 Humboldt Jones Ridge off F.S. Rd. 27N02. 1433 Comment
  HSC97204  Delphinium decorum subsp. tracyi Kiera A. Freeman, Heather J. Perry 2007-6-13 8 Humboldt 1 mi. E of NF1 on FS 5N04 1585 Comment
  POM126169  Delphinium decorum subsp. tracyi Joseph P. Tracy 1922-6-5 6082 Humboldt Head of S Yager Creek. 762 Comment
  HSC24426  Delphinium nudicaule E. C. Murczek 1964-4-4 28 Humboldt 10 mi. N of Hoopa Comment
  UC1196333  Delphinium nudicaule Joseph P. Tracy 1922-5-29 6081 Humboldt rocky slopes at head Northern Coast Ranges, South Yager Creek 762 Comment
  UC184715  Delphinium nudicaule Joseph P. Tracy 1913-6-14 4128 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  HSC67210  Delphinium nuttallianum Thomas W. Nelson, James Nelson 1980-6-10 5438 Humboldt Along E side of Red Mtn. 1372 Comment
  UCD131743  Delphinium trolliifolium Collector unknown 2013-4-23 s.n. Humboldt Near Ferndale. 914 Comment
  RSA168925A  Delphinium trolliifolium Joseph P. Tracy 1951-6-26 19559 Humboldt Halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UC503048  Delphinium trolliifolium Joseph P. Tracy 1927-4-23 7909 Humboldt on bluffs Northern Coast Region, vicinity of Trinidad 60 Comment
  LA10879  Deschampsia danthonioides Joseph P. Tracy; 1935-6-23 13969 Humboldt 1066 Comment
  CAS-BOT-BC201778  Deschampsia elongata Doris K. Kildale 1928-7-1 5309 Humboldt French Camp - Bald Hills - Orick - Martin's ferry road Comment
  HSC98123  Deschampsia elongata Cara Witte 2007-6-19 292 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  UC526671  Deschampsia elongata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9092 Humboldt S. Fork Mt. near McKay Camp Northern Coast Ranges, S. Fork Mt. 1676 Comment
  UC526672  Deschampsia elongata Joseph P. Tracy 1932-7-17 10680 Humboldt ridges e. of Corral Prairie; Klamath Mts., Trinity Summit 1828 Comment
  UC1196309  Dicentra formosa Joseph P. Tracy 1921-3-13 5422 Humboldt Alton; Northern Coast Region 30 Comment
  HSC99360  Dicentra formosa subsp. formosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 9 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC96162  Dicentra pauciflora Laurel Goldsmith, Wanda Naylor 2005-6-15 12 Humboldt 1 mi. SE of Grouse Mtn. on unnamed F.S. road 1400 Comment
  CAS-BOT-BC253636  Dichanthelium acuminatum subsp. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt Bank of S Fork Eel River at Highway 101, 5 miles S of Garberville Comment
  HSC38095  Dichelostemma congestum Thomas W. Nelson, James Nelson 1976-5-30 2616 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC72619  Dichelostemma ida-maia J. P. Smith 1977-7-3 9237 Humboldt Six Rivers National Forest, on Rd. to Onion Lake, 4.7 mi. from junction with Hwy. 36 610 Comment
Read comments
Sep 27 2011
  UC635734  Dichelostemma ida-maia H. L. Mason 1928-7-20 4909 Humboldt South Fork Mountain Comment
  SEINET3885614  Dichelostemma ida-maia D. W. McNeal 1977-6-6 2045 Humboldt Dry shaded hillside above the Bridgeville-Kneeland Rd., 0.4 mi. N. of Hwy. #36.; 0 Comment
  SEINET3885607  Dichelostemma multiflorum Thomas Nelson, James Nelson 1975-5-24 1848 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  UC15035  Dichelostemma multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5632 Humboldt Hoopa Mt. North Coast Ranges, North Fork Trinity River Comment
  CAS-BOT-BC153236  Diplacus kelloggii Lincoln Constance; Reed C. Rollins 1942-5-12 2894 Humboldt Bluffs at junction of Klamath and Salmon rivers, 1 mile south of Somes Bar 152 Comment
  SEINET8208225  Diplacus kelloggii Marshall Ross 1942-5-5 1255 Humboldt Trinity National Forest; Hoopa Indian Reservation; 4.6 miles north of Hoopa. 244 Comment
  RSA1510  Disporum smithii E. R. Johnson 1929-08 1414 Humboldt Arcata Redwood Park 76 Comment
  RSA183538  Disporum smithii H. S. Logsdon 1964-5-10 2 Humboldt 4.0 miles N.E. of Orick at Boye s Prairie Comment
  UC249802  Distichlis spicata Joseph P. Tracy 1923-6-19 6286 Humboldt Mouth of Davies Creek Comment
  UCD64191  Distichlis spicata G. Douglas Barbe; T. C. Fuller 1974-6-17 1835 Humboldt Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  UCR32182  Distichlis spicata David J. Keil 1983-7-1 17286 Humboldt Pacific Coast, c. 5 mi. west of Petrolia along Mattole Road 225 Comment
  UC1198619  Dodecatheon hendersonii Joseph P. Tracy 1923-3-17 6165 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  HSC17909  Dodecatheon hendersonii D. E. Anderson 1965-4-24 3545 Humboldt Ca. 2 mi. E of Berry Summit along Hwy. 299 Comment
  JEPS53536  Draba verna Joseph P. Tracy 1922-4-2 5986 Humboldt near Carlotta (Van Duzen River bar); Northern Coast Ranges, , nr Carlotta 30 Comment
  UC180234  Drosera rotundifolia Joseph P. Tracy 1914-9-6 4601 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC40707  Drosera rotundifolia J. P. Smith, T. Nelson, Robert M. Specht 1977-4-10 9015 Humboldt SE of Hwy. 101 at the SW end of the bridge over Big Lagoon. Comment
  CAS-BOT-BC159617  Drymocallis glandulosa var. glandulosa Joseph P. Tracy 1935-5-25 13899 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC536647  Drymocallis pseudorupestris Doris K. Kildale 1927-7-22 3817 Humboldt Lassic peaks 1661 Comment
  UC492180  Drymocallis rhomboidea Joseph P. Tracy 1927-5-14 8002 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC203874  Dudleya farinosa Joseph P. Tracy 1918-7-1 4075 Humboldt 3 mi s point of the cape (sw slopes fronting the ocean); Cape Mendocino Comment
  HSC41210  Dysphania botrys Thomas W. Nelson, Jane P. Nelson 1977-9-3 3724 Humboldt Along Forest Service Rd. to N of Alder Springs 1524 Comment
  HSC97534  Echinochloa crus-galli Ivy Watson 2008-9-11 7 Humboldt Blue Lake, 300m downstream of the Hatchery Rd. bridge, N bank. 20 Comment
  SEINET200660 Image available Echinochloa crus-galli J. P. Tracy 1938-8-14 16115 Humboldt Trinity River Valley near the South Fork 183 Comment
  UC1103264  Echinochloa crus-galli Joseph P. Tracy 1934-8-14 13569 Humboldt Alton; Northern Coast Region 30 Comment
  CAS-BOT-BC113643  Eleocharis acicularis Doris K. Kildale 1928-7-29 5932 Humboldt Kinman Pond, Bear River Ridge. Comment
  CAS-BOT-BC112842  Eleocharis macrostachya Robert F. Thorne; P. Everett 1965-8-9 35338 Humboldt Along Hwy 101 about 3 mi N of Eureka 1 Comment
  UC1103661  Eleocharis obtusa Joseph P. Tracy 1920-8-15 5365 Humboldt Klamath River at Bluff Creek Northern Coast Ranges Comment
  HSC7341  Eleocharis obtusa J. P. Tracy 1927-8-7 8319 Humboldt Lack Pond in Trinity River Valley opposite mouth of Willow Creek 152 Comment
  HSC7323  Eleocharis pachycarpa H. E. Parks, J. P. Tracy 1934-10-13 11148 Humboldt Trinidad at Park's place 61 Comment
  JEPS19333  Eleocharis rostellata Joseph P. Tracy 1932-7-14 10559 Humboldt Corral PRairie, Trinity Summit 1584 Comment
  BLMAR37  Elymus Brad Barr 37 Humboldt King range Comment
  HSC36619  Elymus glaucus J. D. Ackerman 1974-5-25 256 Humboldt Trinidad, Trinidad Beach S of Trinidad Head. Comment
  UC1056067  Elymus glaucus J. I. Mallory 1955-6-7 113 Humboldt Luke Prairie Quad. 29-B-3 (n end) 350 Comment
  HSC9728  Elymus mollis subsp. mollis E. W. Styskel 1964-5-7 82 Humboldt 2 miles S of Samoa near Samoa Rd. Comment
  SJSU10755  Elymus mollis subsp. mollis H. T. Harvey 1977-7-5 595 Humboldt Elk River Spit, near Eureka, Humboldt Bay Comment
  CAS-BOT-BC234110  Elymus multisetus Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans Comment
  HSC72676  Elymus multisetus J. P. Smith 1977-7-3 9256 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  UC552764  Elymus multisetus H. E. Parks and Joseph P. Tracy 1934-6-27 11048 Humboldt Horse Mt. Northern Coast Ranges 1371 Comment
  UC1103473  Elymus trachycaulus Joseph P. Tracy 1936-7-10 15047 Humboldt Wilder's place Vicinity of Carlotta 30 Comment
  CAS-BOT-BC204329  Elymus trachycaulus subsp. trachycaulus Joseph P. Tracy 1926-7-5 7736 Humboldt Valley of South Yager Creek 762 Comment
  HSC8763  Elymus trachycaulus subsp. trachycaulus D. W. C. 1956-6-20 19 Humboldt May Ranch, Bridgeville. 457 Comment
  UC1103293  Elytrigia repens Joseph P. Tracy 1944-7-1 17477 Humboldt Eureka 30 Comment
  HSC33187  Empetrum nigrum Gary S. Lester, Linda M. Barker 1975-3-29 600 Humboldt Elk Head, N of Trinidad Head 15 Comment
  HSC102918  Epilobium M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1078 Humboldt Patterson Meadows 1555 Comment
  POM271541  Epilobium angustifolium var. macrophyllum Lyman Benson 1928-7-8 725 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  JEPS31511  Epilobium campestre Joseph P. Tracy 1938-7-5 16004 Humboldt open flat by old Strong's District School House (in dried pond bed, 5 mi e of town); Carlotta 45 Comment
  HSC55351  Epilobium canum subsp. latifolium Griswold, Butler 1979-7-12 7272 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC203989  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1918-7-6 5046 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  UC549761  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1932-7-15 10575 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC549762  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1932-7-16 10633 Humboldt swamp near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC49656  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4952 Humboldt At the end of Murray Rd., McKinleyville Comment
  RSA26250B  Epilobium ciliatum subsp. watsonii I. L. Wiggins 1940-7-10 9487 Humboldt Table Bluff Comment
  UC1951301  Epilobium ciliatum subsp. watsonii Robert F. Thorne and P. Everett 1965-8-5 35153 Humboldt Samoa Dunes. Comment
  UC562502  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1936-8-7 15102 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  UC562513  Epilobium hornemannii subsp. hornemannii Joseph P. Tracy 1935-7-24 14183 Humboldt near Ranger Station (along streamlet); Trinity Summit 1828 Comment
  HSC31196  Epilobium minutum D. E. Anderson 1972-6-20 5747 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  SEINET6944762 Image available Epilobium minutum W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  BLMAR297  Epipactis gigantea Jennifer Anthony-Wheeler 2002-7-23 297 Humboldt Headwaters Forest Reserve, growing in a pond with large floating rafts of logs 426 Comment
  CAS-BOT-BC58003  Equisetum Doris K. Kildale 1925-8-18 1253 Humboldt McKay's Prarie - Trinity Summit. 1524 Comment
  UC249801  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1923-9-10 6545 Humboldt Trinity River Valley near South Fork; Northern Coast Ranges, Trinity River Valley, nr South Fork 182 Comment
  CHSC68552  Erechtites glomeratus Vernon H. Oswald 1997-4-29 8350 Humboldt Humboldt Bay NWR, levee north of Long Pond along the arm of South Humboldt Bay separating Teal Island from the main part of the refuge. Comment
  HSC5493  Erechtites glomeratus J. W. Johnson 1962-4-18 1261 Humboldt Arcata; N of the Hunt and Bull Farms, Samoa Peninsula Comment
  UC169294  Erigeron annuus Joseph P. Tracy 1912-7-4 3724 Humboldt near Hydesville (in orchard); Northern Coast Region 60 Comment
  UC165069  Erigeron foliosus var. confinis Joseph P. Tracy 1911-7-6 3353 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek 762 Comment
  HSC34700  Erigeron foliosus var. confinis Thomas W. Nelson 1974-8-24 1703 Humboldt Below Hwy bridge over Klamath River Comment
  HSC5525  Erigeron glaucus D. E. Anderson 1961-8-25 1755 Humboldt 1.5 mi. S of Trinidad Comment
  HSC79376  Erigeron glaucus Kenneth Clark 1980-5-10 646 Humboldt Along coastal bluffs of Point Delgada, Shelter Cove 6 Comment
  HSC98674  Erigeron inornatus var. inornatus Cara Witte 2008-7-10 850 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile from National Forest 1. Under powerlines. 1237 Comment
  HSC81688  Erigeron maniopotamicus Thomas W. Nelson, James Nelson 1980-6-10 5395 Humboldt Jack Rabbit Valley, along Swayback Ridge 4-wheel drive road, 1 mi. S of junction with Forest Service road 1494 Comment
  NY688658  Erigeron maniopotamicus T. W. Nelson 2004-6-18 9253 Humboldt Board Camp Mountain Road, off Forest Service Road 49N38, 1 mile from junction with Forest Service Road 1. 1481 Comment
  UCR179384  Erigeron philadelphicus Katherine Esau 1935-5-22 s.n. Humboldt Fort Seward 152 Comment
  SD56767  Erigeron philadelphicus Darley F. Howe 1963-7-8 3621 Humboldt 8.2 miles west of Bridgeville on California Highway 36. 89 Comment
  UCD131462  Erigeron philadelphicus var. philadelphicus K. Esau 1935-5-22 s.n. Humboldt Fort Seward. Comment
  SEINET11851213  Erigeron strigosus J. P. Tracy 1950-1 19046 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  UC249848  Erigeron strigosus var. strigosus Joseph P. Tracy 1923-6-27 6384 Humboldt Trinity River Valley, near Willow Creek Comment
  HSC48395  Eriodictyon californicum Brad Klipfel 1973-6-10 149 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC248810  Eriogonum compositum var. compositum L. B. Kildale 1930-8-3 10343 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  HSC35695  Eriogonum compositum var. compositum Thomas W. Nelson, B. Reinhardt 1975-7-30 2102 Humboldt Beside road out Whiting Ridge Comment
  HSC17293  Eriogonum latifolium J. W. Johnson 1961-8-17 1040 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  SD185287  Eriogonum latifolium G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7016 Humboldt North coast: Samoa Peninsula, 2.6 mi S of CA-255 bridge across Humboldt Bay 14 Comment
  SD38692  Eriogonum latifolium Edith A. Purer 1932-7-30 4669 Humboldt South of Orick, sand dunes Comment
  RSA286308  Eriogonum latifolium Robert F. Thorne 1974-7-29 45074 Humboldt Samoa Dunes. Comment
  SEINET10479505  Eriogonum latifolium Mary Susan Taylor 1982-10-24 Taylor 5180 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC672913  Eriogonum latifolium Joseph P. Tracy 1927-6-18 8175 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  UC1198108  Eriogonum luteolum var. luteolum Joseph P. Tracy 1930-8-3 9142 Humboldt along Van Duzen River opposite Buck Mountain; Van Duzen River 762 Comment
  CAS-BOT-BC261495  Eriogonum nudum var. nudum Harley P. Chandler 1901-6-1 1491 Humboldt Klamath River 304 Comment
  CAS-BOT-BC261499  Eriogonum nudum var. nudum A. G. Vestal 1937-6-20 s.n. Humboldt 4 mi. N. of Petrolia Comment
  HSC47964  Eriogonum nudum var. nudum Brad Klipfel 1974-8-2 519 Humboldt Horse Mtn. Comment
  CAS-BOT-BC261724  Eriogonum nudum var. oblongifolium Doris K. Kildale 1926-5-9 1991 Humboldt Kneeland Prairie, Rock Pile 853 Comment
  HSC43084  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-8-3 300 Humboldt N Trinity Mtn. 1860 Comment
  RSA249330  Eriophorum crinigerum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5566 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  UC198878  Eriophorum crinigerum H. N. Bolander, Kellogg, M. D. and Co. Humboldt Red Mt. Comment
  UC2016489  Eriophyllum confertiflorum Richard Olmstead 1986-6-20 905 Humboldt North of Orleans 3 miles, at Whitmore Creek on Highway 96. Comment
  HSC49961  Eriophyllum lanatum Maralyn O'Meara 1974-7-11 546 Humboldt Kneeland, Barry Ridge Comment
  JEPS34590  Eriophyllum lanatum var. achilleoides W. L. Jepson 1921-8-11 9417 Humboldt Big Lagoon Comment
  JEPS34646  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1921-8-12 5934 Humboldt Big Lagoon 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
  HSC97466  Eriophyllum lanatum var. achilleoides Cara Witte 2007-5-29 129 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC90251  Eriophyllum lanatum var. achilleoides unknown 1890-7-5 Humboldt Comment
  CAS-BOT-BC301177  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1927-7-4 8231 Humboldt Iaqua 609 Comment
  UC176857  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1912-7-21 3768 Humboldt Alton Northern Coast Region of California Comment
  UC165860  Eriophyllum staechadifolium Joseph P. Tracy 1907-7-4 2580 Humboldt rocky bluffs along coast near Trinidad; Northern Coast Ranges 15 Comment
  JEPS61382  Erodium cicutarium Lincoln Constance 1934-5-27 702 Humboldt s end Dyerville Bridge (South Fork Eel River); , Bull Creek Region 45 Comment
  UC17090  Erodium cicutarium Joseph Burtt Davy 1899-6-8 5342 Humboldt Bell Springs Comment
  HSC100484  Erodium cicutarium Carl C. Marshall Jun 1887 478 Humboldt Everywhere. Comment
  HSC44569  Erysimum capitatum var. capitatum Brad Klipfel 1973-7-15 187 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74289  Erysimum capitatum var. capitatum M. A. Baker 1980-7-19 3013 Humboldt Near Bret Hole. 1814 Comment
  HSC85898  Erysimum capitatum var. capitatum Barry Silver 1986-4-23 528 Humboldt 9.5 mi. NW of junction with Hwy. 299, Pine Ridge Summit area 945 Comment
  SFV18510  Erysimum capitatum var. capitatum D. Waller 2002-4-13 33 Humboldt Near Horse Mountain, 3 miles up Titlow Hill Road. 915 Comment
  SEINET5342590  Erysimum menziesii J. Tracy 1901-4-14 1019 Humboldt Humboldt Bay. Comment
  CAS-BOT-BC383042  Erythranthe grandis David B. Lowry 2005-5-14 BSR Humboldt Along Blue Slide Road, just north of the intersection with Bluff road 17 Comment
  HSC104324  Erythronium californicum James Regan, Humboldt Redwood Co., LLC 2007-4-30 22 Humboldt Kneeland, near Kneeland Airport 854 Comment
  JEPS502  Erythronium grandiflorum Joseph P. Tracy 1933-7-11 12708 Humboldt Grouse Mountain 1524 Comment
  JEPS501  Erythronium grandiflorum Joseph P. Tracy 1930-7-18 9037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC502808  Erythronium oregonum Lena E. Bowley 1941-4-1 s.n. Humboldt unspecified Comment
  HSC38258  Erythronium revolutum Thomas W. Nelson 1976-4-3 2283 Humboldt Hwy 36 at east end of Swain's Flat Comment
  UC169914  Eschscholzia californica Harley P. Chandler June, 1901 1538 Humboldt Klamath River North Coast Ranges 457 Comment
  HSC59686  Eschscholzia californica George Kirn 1977-8-20 Humboldt Eureka, 6th and Myrtle Ave. Comment
  RSA0012595  Eucalyptus globulus Clark L. Miller 1979-5-24 9 -157 Humboldt Along Highway 101 approx. 100 yards from Murrey Road off-ramp. Comment
  JEPS20485  Euchiton gymnocephalus Joseph P. Tracy 1935-7-20 14110 Humboldt near Blue Lake (on Trinity Highway); North Coast Ranges, Trinity Highway 274 Comment
  POM358934  Euchiton sphaericus H. M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  HSC100665  Eunanus douglasii Carl C. Marshall Apr 1887 377 Humboldt Hoopa Valley, dry roadsides. Comment
  UC1071562  Euonymus occidentalis var. occidentalis R. Stahelin 1933-8-9 Humboldt Rohner Creek, <Holmes Eureka Land> Rohnerville Quad., Rohner Creek Comment
  UC302052  Euphorbia peplus Joseph P. Tracy 1926-5-15 7473 Humboldt Eureka; North Coast Ranges 0 Comment
  HSC34947  Euphorbia peplus Dryden 1975-4-20 124 Humboldt Yard 0 Comment
  UC198587  Eurybia radulina Joseph P. Tracy 1917-9-2 4843 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC312209  Eurybia radulina Doris K. Kildale 1928-8-5 6266 Humboldt Bull Creek Flat, South Fork of Eel River Comment
  UCD98910  Fallopia sachalinensis H. E. Parks; S. T. Parks 1941-8-1 s.n. Humboldt Along highway and Orick 50 miles south. Mouth of Elk River, Humboldt Bay, near sea level. Comment
  UC1607839  Festuca Joseph P. Tracy and Harold E. Parks 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  CAS-BOT-BC278422  Festuca idahoensis Joseph P. Tracy 1930-6-8 8729 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  HSC32491  Festuca occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5722 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC41382  Festuca occidentalis J. O. Sawyer 1970-6-27 2304 Humboldt Site 318. 1494 Comment
  HSC74474  Festuca occidentalis Gail Newton 1980-7-23 1752 Humboldt Near Packsaddle Ridge 1463 Comment
  SEINET175520 Image available Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River near Bridgeville Comment
  UC38489  Festuca occidentalis Harley P. Chandler Jun 1901 1474 Humboldt Klamath River North Coast Ranges Comment
  UC70923  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5362 Humboldt near Harris Comment
  UCD66174  Festuca occidentalis Linda M. Barker 1976-6-14 1598 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UCSC000035  Festuca occidentalis H. S. Yates 1936-6-17 5700 Humboldt lower northwest slope of Buck Mountain 792 Comment
  UC526868  Festuca rubra Joseph P. Tracy 1927-6-26 8217 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  UCD66392  Festuca rubra Joseph P. Tracy 1938-7-4 15986 Humboldt Valley of South Yager Creek. 762 Comment
  CHSC19732  Fragaria chiloensis D. J. Jager 1965-5-12 66 Humboldt Ca. 1/2 mi. north of Trinidad on bluff above ocean. 45 Comment
  CHSC32839  Fragaria chiloensis Lora Anderson 1981-4-26 7 Humboldt Ca. 5 m n on Clam Beach Rd. 0.5 km e of Hwy. 101. 9.5 mi n of Arcata, along roadsides. 0 Comment
  UC1198727  Fragaria chiloensis J. P. Tracy 1900-6-5 851 Humboldt immediate vicinity of Eureka (at Bucksport) 0 Comment
  HSC18608  Fragaria vesca A. E. Inman 1962-5-25 Humboldt E bank of Mad River, W of Camp Bauer 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-BC52736  Frangula californica subsp. californica Carl B. Wolf 1927-8-30 1249 Humboldt At a small creek 3 miles south of Thorn. Comment
  CAS-BOT-BC59968  Frangula purshiana Harley P. Chandler 1901-5-1 1173 Humboldt Humboldt Bay. 30 Comment
  HSC18411  Frangula purshiana L. D. Napier 1962-5-19 15 Humboldt 1 mi. E of Arcata on Fickle Hill 168 Comment
  HSC18419  Frangula purshiana T. M. Mingo May 1965 Humboldt 2 mi N of Trinidad Comment
  SBBG4629  Frangula purshiana subsp. purshiana M. J. Cody 1938-7-10 Humboldt near Trinidad Comment
  HSC18422  Frangula purshiana subsp. purshiana R. T. Haase 1965-4-26 11 Humboldt Comment
  HSC102621  Frasera speciosa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1608 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC217693  Fraxinus latifolia M. S. Jussel 1931-5-1 s.n. Humboldt Sylvandale, 8 mi. N of Garberville Comment
  HSC15537  Fritillaria affinis D. E. Anderson 1965-5-8 3635 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  UC1539972  Fritillaria affinis Joseph P. Tracy 1910-4-24 3122 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC30177  Fritillaria purdyi Thomas W. Nelson 1974-5-7 1232 Humboldt Beside airstrip at Kneeland Prairie 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
  CDA42402  Fuchsia R. Robison 2014-5-5 s.n. Humboldt Trinidad State Beach, west of Trinidad and near Ewing Street access area. 0 Comment
  CDA38142  Fuchsia magellanica G. D. Barbe, T. C. Fuller 1974-6-18 1872 Humboldt Loop trail above Fern Canyon, Prairie Creek Redwood State Park, 7.1 miles west of Highway 101 on Fern Canyon Road, 5 miles south of Klamath River. 0 Comment
  HSC100646  Galium Carl C. Marshall Jun 1886 49 Humboldt Pilot Creek. Comment
  HSC72984  Galium ambiguum subsp. siskiyouense M. A. Baker 1980-7-11 2773 Humboldt Near Red Mtn. 1341 Comment
  JEPS6480  Galium ambiguum subsp. siskiyouense Joseph P. Tracy 1925-5-30 7026 Humboldt Laribee Valley Northern Coast Ranges 731 Comment
  HSC41592  Galium ambiguum subsp. siskiyouense Thomas W. Nelson, Jane P. Nelson 1977-7-1 3558 Humboldt Along ridge between Bear Creek and Blanket Creek 1494 Comment
  HSC73126  Galium aparine M. A. Baker 1980-5-18 1305 Humboldt Near Black Mtn. 1006 Comment
  RSA168953  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley. On NW slope of Buck Mtn. 1067 Comment
  HSC70633  Galium bolanderi R. York 1980-5-18 583 Humboldt Near Black Mtn 792 Comment
  HSC41599  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1977-8-6 3705 Humboldt Above Alder Springs 1555 Comment
  JEPS52855  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3864 Humboldt 4.2 mi e Garberville (on road to Harris, at crest of ridge) 640 Comment
  UC1196117  Galium californicum subsp. californicum Joseph P. Tracy 1934-7-9 13337 Humboldt ridge 5 mi s Harris 762 Comment
  HSC37909  Galium divaricatum Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  UCD121759  Galium divaricatum Thomas W. Nelson; Jane P. Nelson 1977-9-4 3746 Humboldt Willow Creek. Comment
  HSC38523  Galium parisiense D. E. Anderson, J. P. Smith 1971-6-18 - 1075 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  SD70521  Galium porrigens var. porrigens Lauramay T. Dempster, G. L. Stebbins 1963-7-8 3843 Humboldt Willow Creek at Hwy. crossing north of Willow Creek town 459 Comment
  HSC57217  Galium triflorum Griswold, Butler 1979-7-12 7289 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC57320  Galium triflorum Overton, Butler 1979-7-23 9519 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC58322  Galium triflorum Overton, Butler 1979-8-2 12619 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1199355  Gamochaeta ustulata J. P. Tracy 1901-6-16 1147 Humboldt immediate vicinity Eureka 0 Comment
  UC165753  Gamochaeta ustulata J. P. Tracy 1906-5-20 2468 Humboldt immediate vicinity Eureka 0 Comment
  UC562617  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  RSA638992  Gamochaeta ustulata R. F. Thorne 1974-7-29 45067 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  HSC36442  Garrya elliptica J. P. Smith 1976-1-25 8506 Humboldt End of Murray Rd. Comment
  HSC49918  Garrya elliptica Maralyn O'Meara 1973-2-19 191 Humboldt McKinleyville, Murray Rd. Comment
  HSC67592  Garrya elliptica J. P. Smith 1971-10-6 4961 Humboldt End of Murray Rd. in McKinleyville. Comment
  POM160821  Garrya elliptica Joseph P. Tracy 1925-8-14 7231 Humboldt Near Samoa, on Humboldt Bay. 6 Comment
  RSA485907  Garrya elliptica G. Dahling 1973-06 1229 Humboldt Along Highway 101, about ten miles north of Trinidad. Comment
  UC1196886  Garrya elliptica Joseph P. Tracy 1921-1-23 5413 Humboldt near Lindsay Creek (hillside on Mad River); Northern Coast Region 30 Comment
  UC154051  Garrya elliptica J. P. Tracy 1901-1-27 990 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  CAS-BOT-BC182146  Garrya fremontii Doris K. Kildale 1929-4-25 7434 Humboldt McDowell Butte - Kneeland Prairie 914 Comment
  HSC8404  Garrya fremontii C. B. Wolf 1927-8-28 1169 Humboldt Lord Ellis Rd. to Blue Lake, 9 mi. from Willow Creek, 2 mi. below grade summit Comment
  OBI35859  Garrya fremontii David J. Keil 1983-7-2 17336 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  UC249599  Garrya fremontii Joseph P. Tracy 1922-6-18 6089 Humboldt Booth's Run Northern Coast Ranges (branch of Lawrence Creek) 609 Comment
  HSC71725  Gastridium phleoides M. A. Baker 1980-6-26 2462 Humboldt Near Sims Creek 610 Comment
  UCD66582  Gastridium phleoides P. B. Kennedy 1923-8-5 26 Humboldt West fork of Eel River between Phillipsville and Garberville. Comment
  UC589848  Gastridium ventricosum H. S. Yates 1936-6-23 5877 Humboldt 4 mi nne Cathay Peak; Dyerville Quadrangle Comment
  UC314635  Gaultheria ovatifolia Joseph P. Tracy 1926-6-27 7670 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1463 Comment
  HSC45586  Gaultheria shallon Diane L. Reed 1978-5-27 140 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC7811  Gaultheria shallon J. Pursell 1964-10-18 10182 Humboldt Hwy. 299, 15 mi. N of Blue Lake Comment
  HSC7812  Gaultheria shallon J. Pursell 1964-11-1 1111 Humboldt Hoopa Valley Hwy. 96 Comment
  HSC75456  Gayophytum diffusum subsp. parviflorum J. O. Sawyer 1980-7-18 3600 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC422799  Gayophytum heterozygum Chesnut and Drew Humboldt Comment
  HSC55166  Gayophytum ramosissimum Gilbert Muth 1979-8-1 12157 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UCD105749  Genista monspessulana W. Williams 1951-5-11 s.n. Humboldt location unknown. Comment
  HSC34277  Gentiana plurisetosa K. Irwin 1975-8-13 Humboldt North Trinity Mtn. Area, below Mill Creek Lake Comment
  RSA46721  Gentiana sceptrum Doris K. Kildale 1937-8-26 15344 Humboldt Christmas Prairie Comment
  UC1198643  Gentiana sceptrum Joseph P. Tracy 1938-9-25 16166 Humboldt Lake Prairie Bald Mountain 1066 Comment
  UCSB26680  Gentiana sceptrum Havlik, Neil 1968-8-21 Humboldt south end of Big Lagoon; north of Trinidad 1 Comment
  UC169886  Geranium dissectum Harley P. Chandler Jun 1901 1420 Humboldt Klamath River North Coast Ranges Comment
  UC668044  Geranium molle Joseph P. Tracy 1933-5-19 12197 Humboldt Alton to Fortuna (along the Eel River); Eel River 15 Comment
  HSC90389  Geranium pusillum Jean Hanson 1980-4-12 41 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island Comment
  HSC12777  Geranium retrorsum Jana Kattenhorn 1970-10-24 140 Humboldt Arcata, HSU campus, S of Harpst St. Comment
  UC166037  Geranium solanderi J. P. Tracy 1911-6-11 3238 Humboldt Trinidad station 91 Comment
  HSC100590  Gilia androsacea Carl C. Marshall May 1885 98 Humboldt Hills. Comment
  UC907951  Gilia capitata subsp. capitata Joseph P. Tracy 1935-6-23 13995 Humboldt French Camp Ridge 1066 Comment
  HSC16984  Gilia millefoliata R. J. Vernimen 1963-5-11 45 Humboldt Clam Beach Lagoons, 10 mi. N of Arcata Comment
  HSC90478  Gilia millefoliata Jean Hanson 1981-5-10 131 Humboldt Indian Island, Humboldt Bay, Eureka, W end of island Comment
  UC921140  Gilia millefoliata Joseph P. Tracy 1948-6-12 18067 Humboldt sand dunes near Samoa (on Humboldt Bay); , near Samoa 6 Comment
  UC1197905  Gilia tricolor subsp. tricolor Joseph P. Tracy 1929-5-5 8561 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River, Miranda (along South Fork of Eel River) 121 Comment
  UC169033  Githopsis specularioides J. P. Tracy 1903-5-23 1906 Humboldt Alder Point 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
  SJSU8439  Glehnia littoralis subsp. leiocarpa H. T. Harvey 1977-7-5 606 Humboldt Elk R Spit, Humboldt Bay Comment
  UC1122973  Glehnia littoralis subsp. leiocarpa H. S. Yates 1936-6-16 5652 Humboldt 1/2 mi s Samoa; Eureka Quadrangle Comment
  HSC10077  Glyceria X occidentalis L. M. Malloy 1965-5-20 33 Humboldt On Fickle Hill Rd. 2 mi. from Arcata. Comment
  RSA550922  Glyceria declinata R. F. Thorne, P. Everett 1965-8-9 35331 Humboldt Clam Beach County Park: along highway. 3 Comment
  POM92418  Gnaphalium chilense L. R. Abrams 1922-6-25 8223 Humboldt 6 miles N of Garberville Comment
  RSA249512  Gnaphalium palustre R. F. Thorne, Percy C. Everett 1965-8-7 35227 Humboldt Samoa Peninsula. 3 Comment
  HSC34504  Goodyera oblongifolia J. D. Ackerman 1975-5-3 441 Humboldt Hwy. 299, 200 yds. E of Lord Ellis Summit Comment
  HSC55277  Goodyera oblongifolia Overton, Butler 1979-8-2 12685 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC99539  Goodyera oblongifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 204 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET11835895  Grindelia camporum var. camporum J. P. Tracy 1947-1 17941 Humboldt 4 mi S of Garberville, Smith Point bridge Comment
  CAS-BOT-BC304732  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1934-4-11 1321 Humboldt Eureka Comment
  CAS-BOT-BC304755  Grindelia hirsutula Doris K. Kildale 1926-7-10 2345 Humboldt Big Lagoon Comment
  CAS-BOT-BC304759  Grindelia hirsutula Roxana S. Ferris 1937-8-21 9388 Humboldt Shelter Cove Comment
  CAS-BOT-BC304760  Grindelia hirsutula Roxana S. Ferris 1937-8-21 9388 Humboldt Shelter Cove Comment
  HSC25397  Grindelia hirsutula S. Dowty 1972-10-29 325 Humboldt Near county dump at edge of Humboldt Bay Comment
  SBBG62631  Grindelia hirsutula R. Hartwell 1938-8-5 Humboldt Mattole Rd on coast between Capetown and Petrolia, along beach Comment
  UC1196598  Grindelia hirsutula Joseph P. Tracy 1939-8-6 16397 Humboldt gravelly shore Big Lagoon 3 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
  UC370617  Grindelia hirsutula J. P. Tracy 1925-8-30 7255 Humboldt Big Lagoon Comment
  UC479505  Grindelia hirsutula Marcus E. Jones, A. M. 1931-7-16 29143 Humboldt Arcata Comment
  POM230322  Grindelia stricta var. stricta J. T. Howell 1937-7-31 s.n. Humboldt Salt marsh bordering Humboldt Bay at Arcata. 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
  SEINET11678982  Hainardia cylindrica J. P. Tracy 1938-1 16071 Humboldt mouth of Eel River 3 Comment
  HSC57955  Hastingsia alba G. L. Clifton, Griswold 1979-7-31 11642 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  RSA44540  Helenium autumnale H. M. Pollard 1947-8-18 s.n. Humboldt Klamath river bar, near Orleans. Comment
  UC1409057  Helenium bolanderi Robert F. Thorne and P. Everett 1965-8-7 35194 Humboldt at s end Big Lagoon 1 Comment
  UCD132967  Helminthotheca echioides Collector unknown Date Unknown s.n. Humboldt exact location unknown. Comment
  HSC45215  Hemitomes congestum Louise Watson, Mary Lou Schreiber 1978-9-29 Humboldt West side of summit, 1/4 mi. N. of McKinleyville-Fieldbrook Rd. Bulk Collection 137 Comment
  UC718391  Hemizonella minima C. B. Wolf 1934-9-2 5861 Humboldt e Korbel; Snow Camp 914 Comment
  UC1199367  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-6-15 8767 1/2 Humboldt Dobby Creek 152 Comment
  CAS-BOT-BC306180  Hemizonia congesta subsp. congesta Carl B. Wolf 1927-8-29 1218 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  UC1281660  Hemizonia congesta subsp. tracyi Richard Spellenberg 1965-6-14 1129 Humboldt 6 mi se Kneeland Comment
  UC176756 Image available Hemizonia congesta subsp. tracyi J. P. Tracy 1908-7-30 2754 Humboldt opposite Buck Mountain; valley of Van Duzen River; valley of Van Duzen River opposite Buck Mt., Humboldt Co. 762 Comment
  CDA20030  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 1 of 3 0 Comment
  HSC21503  Heracleum maximum S. R. Johnson 1965-3-14 8 Humboldt 1 mi. N of Luffenholtz Beach 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
  HSC76200  Heracleum maximum Overton, Butler 1979-8-2 12523 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC275454  Hesperevax acaulis var. robustior Joseph P. Tracy 1925-5-17 6982 Humboldt near s fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC101543  Heterotheca oregona var. compacta J. P. Smith, J. O. Sawyer 2009-8-3 12643 Humboldt Along the Eel River. 23 Comment
  HSC32931  Heuchera micrantha Thomas W. Nelson, James Nelson 1973-5-28 951 Humboldt McKeown Ranch N of Dinsmore Comment
  SEINET12219180  Heuchera micrantha H. P. Chandler 1901-1 1231 Humboldt Redwood Belt, North Coast Ranges 457 Comment
  CAS-BOT-BC425003  Heuchera micrantha var. micrantha Huron H. Smith 1911-6-6 3794 Humboldt Little River Jc. Comment
  HSC56114  Heuchera rubescens Gilbert Muth 1979-8-1 11884 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC40964  Hieracium albiflorum Linda M. Barker 1976-6-14 1591 Humboldt 3 mi. W of Arcata Comment
  HSC49962  Hieracium albiflorum Maralyn O'Meara 1974-7-11 542 Humboldt Kneeland; Barry Ridge Comment
  HSC57107  Hieracium albiflorum Overton, Butler 1979-7-25 9845 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  SEINET10839135  Hieracium albiflorum Mary Merello 1993-6-19 Merello 661 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  CAS-BOT-BC312385  Hieracium albiflorum Kenneth Clark 1980-6-14 687 Humboldt North fork Dead Man's Gulch, Shelter Cove 106 Comment
  UC582421  Hieracium albiflorum Joseph P. Tracy 1937-8-7 15620 Humboldt Bald Mt. 914 Comment
  UC582411  Hieracium greenei Joseph P. Tracy 1935-7-30 14358 Humboldt Salmon Summit 1767 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
  UC526829  Hierochloe occidentalis Joseph P. Tracy 1926-4-11 7401 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  HSC69757  Hippuris vulgaris Thomas W. Nelson 1977-9-22 3750 Humboldt Along E side of State Rte. 101, N of Eureka airport Comment
  UC1196930  Hippuris vulgaris Joseph P. Tracy 1934-7-2 13284 Humboldt mouth of Little R. 1 Comment
  HSC10134  Holcus lanatus R. D. Zortman 1963-4-14 27 Humboldt 5.0 mi. NE of Arcata, off Warren Creek Road. 91 Comment
  HSC37948  Holcus lanatus Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  HSC39956  Holcus lanatus Linda M. Barker 1976-6-22 1614 Humboldt 3 mi. W of Arcata Comment
  HSC97396  Holcus lanatus J. Wendell Howe 1934-6-27 1278 Humboldt Arcata. Comment
  SACT001293  Holcus lanatus Lyle Bibb 1963-5-11 Humboldt Comment
  SEINET200828 Image available Holcus lanatus J. P. Tracy 1914-9-13 4626 Humboldt Eureka 0 Comment
  UC922019  Holcus lanatus Joseph P. Tracy 1949-7-6 18330 Humboldt Eureka 30 Comment
  UCR143024  Holcus lanatus M. S. Jussel 1931-5-2 s.n. Humboldt Northwestern Coast; Outer North Coast Ranges, near Garberville 183 Comment
  CAS-BOT-BC149902  Holodiscus discolor Doris K. Kildale 1927-7-17 3755 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC281264  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1932-7-10 10389 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  UC50691  Hordeum brachyantherum subsp. brachyantherum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5606 Humboldt Arcata Arcata (North-Western California) Comment
  UC526786  Hordeum brachyantherum subsp. californicum Joseph P. Tracy 1933-6-6 12508 Humboldt Trinidad Northern Coast Region, Trinidad 9 Comment
  HSC99121  Hordeum marinum subsp. gussoneanum Cara Witte 2007-6-4 201 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  SEINET11911570  Horkelia sericata H. P. Chandler 1901-1 1543 Humboldt Klamath River 427 Comment
  HSC97225  Horkelia tridentata var. flavescens K. Auker, R. Battleson 2007-6-11 6 Humboldt 11.9 mi. S of Hwy. 299 on USFS Rd. NF1 1585 Comment
  CAS-BOT-BC206076  Hosackia crassifolia Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  SD113612  Hosackia crassifolia var. crassifolia Darley F. Howe 1962-5-22 3305 Humboldt 4.3 miles east of Orick on Bald Mountain Road 609 Comment
  HSC100884  Hosackia parviflora Carl C. Marshall May 1887 421 Humboldt Blocksburg. Comment
  HSC104067  Hydrophyllum occidentale Jenny Moore 2003-6-5 Humboldt Six Rivers National Forest; South Fork Mountain area, headwaters of Pilot Creek, Becker Ridge, FS Rd. 3N10 1220 Comment
  HSC13539  Hydrophyllum tenuipes R. D. Zortman 1963-5-12 40 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  JEPS1634  Hydrophyllum tenuipes Joseph P. Tracy 1918-4-28 4892 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC1239761  Hydrophyllum tenuipes Joseph P. Tracy 1933-6-11 12558 Humboldt Holmes Flat 60 Comment
  CAS-BOT-BC400793  Hypericum anagalloides C. L. Hitchcock; J. S. Martin 1939-7-14 5442 Humboldt 7 miles east of Shelter Cove 243 Comment
  HSC13820  Hypericum anagalloides W. D. Stevens 1967-7-22 50 Humboldt Above dirt rd. from old Hwy. 101 to the top of the N bank of the Mad River Comment
  HSC73150  Hypericum perforatum M. A. Baker 1980-5-18 1345 Humboldt Near Black Mtn. 792 Comment
  UC909470  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt ca. 1/2 mi. n. Orleans (near Klamath R.) Comment
  CAS-BOT-BC401227  Hypericum perforatum Doris K. Kildale 1927-7-3 3655 a Humboldt Willow Creek Flat 152 Comment
  HSC24388  Hypericum perforatum J. O. Sawyer 1970-6-24 2240 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC36441  Hypericum perforatum John Rehling 1974-7-12 10 Humboldt Bald Hills Rd. 23.5 mi. from Hwy. 101 Comment
  POM311762  Hypericum perforatum Karen Hosterman 1957-8-29 1109 Humboldt 7 miles from Orleans, within 1 mile of junction of Klamath Road and Red Cap Creek. 114 Comment
  CAS-BOT-BC401303  Hypericum scouleri Doris K. Kildale 1926-7-9 2337 Humboldt Bayside Comment
  CAS-BOT-BC312888  Hypochaeris glabra Barry Silver 1986-5-18 602 Humboldt Bull Creek Flats Road, 100 yds. w. of junction with Highway 101 Comment
  UC909042  Ipomopsis aggregata Joseph P. Tracy 1933-7-25 12884 Humboldt Grouse Mtn Northern Coast Ranges 1524 Comment
  UC275572  Iris douglasiana Joseph P. Tracy 1924-5-25 6683 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  SEINET12056852  Iris douglasiana H. P. Chandler 1901-1 1262 Humboldt Redwood Belt 457 Comment
  UC667107  Iris macrosiphon Joseph P. Tracy 1932-7-17 10662 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UCD138785  Iris macrosiphon H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  HSC44159  Iris purdyi Thomas W. Nelson, Jane P. Nelson 1977-6-19 3515 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  BLMAR624  Iris purdyi Jennifer Wheeler 2011-6-1 624 Humboldt Lacks Creek, Bair rd near pickle springs 609 Comment
  SEINET3876004  Iris purdyi Rimo C. Bacigalupi, William Constance; S. M. Tracy; R. Moran; R. L. Rodriguez; S. Carlquist 1951-6-14 3414 Humboldt Under forest in meadow about Snow Camp. Ridge between Mad River and Redwood Creek, Bald Mountain.; 0 1433 Comment
  CAS-BOT-BC133694  Iris tenax L. W. Lenz 1953-5-17 18317 Humboldt 1 mi. below Somes Bar on Klamath River 179 Comment
  CAS-BOT-BC240325  Iris tenax subsp. klamathensis Dana York 2011-5-31 3021 Humboldt Six Rivers National Forest, Ca. 1.1 km S-SE of Somes Bar Post Office, on the slope E and above Hwy. 96 adjacent to a large landslide that occurred in 2010 Comment
  RSA136372  Iris tenax subsp. klamathensis Lee W. Lenz 1953-5-17 18317 Humboldt 1 mile below Somes Bar on Klamath River 180 Comment
  RSA136343  Iris tenuissima Lee W. Lenz, E. K. Balls 1952-5-12 17197 Humboldt 0.5 miles west of Dinsmore on Highway 36 from Alton to Red Bluff Comment
  JEPS63980  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt Salmon Creek Valley Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley (around Humboldt Bay) 30 Comment
  UC668264  Isopyrum stipitatum Joseph P. Tracy 1935-5-5 13802 Humboldt Kneeland Prairie 822 Comment
  CAS-BOT-BC340153  Jaumea carnosa C. C. Harris; S. K. Harris 1939-8-26 s.n. Humboldt South shore of Humboldt Bay Comment
  CAS-BOT-BC109922  Juncus Doris Kildale Gillespie 1931-6-7 10654 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  UC185007  Juncus balticus subsp. ater Joseph P. Tracy 1912-7-21 3787 Humboldt Alton Northern Coast Region 30 Comment
  HSC40945  Juncus bufonius Linda M. Barker 1976-6-1 1551 Humboldt 3 mi. W of Arcata Comment
  HSC91873  Juncus bufonius E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  HSC13993  Juncus bufonius J. E. Lankila 1962-4-14 6 Humboldt W bank of Eel River across from Shively, 0.25 mi. N of Bear Creek Comment
  RSA298326  Juncus bufonius J. P. Smith, Advanced Plant Taxonomy Plant 1971-10-9 5009 Humboldt Mad River above the Fish Hatchery. Comment
  CHSC105147  Juncus covillei Peter F. Zika 2008-10-19 24231 Humboldt Uncommon in damp ditches, full sun, E side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  HSC98023  Juncus covillei Cara Witte 2007-7-12 517 Humboldt Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1339 Comment
  UC1152096  Juncus ensifolius Joseph P. Tracy 1937-8-7 15619 Humboldt about 1 mi n Murphy Meadow (e of Korbel); Bald Mountain Comment
  HSC102214  Juncus exiguus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1130 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA129411  Juncus falcatus subsp. sitchensis H. S. Yates 1936-6-16 5654 Humboldt 1/2 mile southwest of Samoa. 3 Comment
  RSA42045  Juncus hesperius Ella Dales Cantelow 1936-8-28 1634 Humboldt 4 1/2 miles SW of Dinsmore s Comment
  JEPS67119  Juncus kelloggii Joseph P. Tracy 1914-5-14 4431 Humboldt Fort Seward 121 Comment
  HSC63878  Juncus laccatus M. A. Baker 1979-6-29 957 Humboldt Hopkins Creek 750 Comment
  HSC74694  Juncus laccatus Gail Newton 1981-7-24 2301 Humboldt Near Chaparral Mtn. 1433 Comment
  UCD141574  Juncus lescurii Linda M. Barker 1976-6-22 1620 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC14030  Juncus lescurii David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  RSA742777  Juncus planifolius P. F. Zika 2008-10-19 24229 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  UC717989  Juncus xiphioides David D. Keck 1944-7-11 5495 Humboldt Cape Mendocino 3 Comment
  HSC73764  Keckiella corymbosa Gail Newton 1980-7-23 1743 Humboldt Near Packsaddle Ridge 1463 Comment
  JEPS11129  Keckiella corymbosa Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  JEPS10901  Keckiella lemmonii Joseph P. Tracy 1929-8-4 8648 Humboldt ridge between Bull Creek and Mattole River 762 Comment
  HSC61762  Kickxia spuria Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan, 1 mi. above Pecwan, upper road Comment
  UC1051592  Lactuca saligna Joseph P. Tracy 1947-9-14 17932 Humboldt Kneeland Prairie 762 Comment
  UCR122362  Lapsana communis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6990 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
  RSA170204  Lapsana communis Joseph P. Tracy 1944-7-3 17482 Humboldt Graham's Peach Orchard. Trinity River Valley at Willow Creek. 152 Comment
  CAS-BOT-BC337995  Lasthenia californica Doris K. Kildale 1928-5-15 6031 Humboldt Bug Creek, Chaparral Mountain 1524 Comment
  HSC5139  Lasthenia californica D. E. Anderson 1963-5-19 2466 Humboldt Kneeland Area Comment
  HSC95582  Lathyrus latifolius Andrea Pickart 2002-7-19 183 Humboldt Arcata Marsh at Jolly Giant Creek mile .1 10 Comment
  UC1128970  Lathyrus littoralis H. S. Yates 1936-6-16 5658 Humboldt 0.5 mi sw Samoa; Eureka Quad. 3 Comment
  UC1199081  Lathyrus littoralis Joseph P. Tracy 1933-5-20 12223 Humboldt Cape Mendocino 6 Comment
  SEINET955878  Lathyrus littoralis Gordon Leppig, Kai Neander 1998-1 787 Humboldt Big Lagoon State Park. 2 Comment
  HSC64214  Lathyrus nevadensis var. nevadensis J. O. Sawyer, M. A. Ericksen 1979-6-23 3387 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC100519  Lathyrus polyphyllus Carl C. Marshall Mar 1886 147 Humboldt Near Mad River. Comment
  UC162867  Lathyrus polyphyllus Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5355 Humboldt Bell Springs to Harris; North Coast Ranges Comment
  UCD106339  Lathyrus polyphyllus K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  JEPS55310  Lathyrus sulphureus Lincoln Constance 1934-5-31 757 Humboldt from w boundary of Park to Grasshopper Pk. (Squaw Cr.) rd (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  UC160919  Lathyrus torreyi Joseph P. Tracy 1909-8-1 3062 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC15322  Lathyrus vestitus Joseph P. Tracy May 1901 1201 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  POM92407  Lathyrus vestitus subsp. vestitus L. R. Abrams 1922-6-25 8245 Humboldt Near South Bay. Comment
  UC89177  Layia carnosa Harley P. Chandler May 1901 1150 Humboldt Humboldt Bay 3 Comment
  CAS-BOT-BC534641  Lemna minuta Henry M. Pollard 1956-10-11 s.n. Humboldt Orleans Forest Service Station Comment
  CDA25774  Lemna trisulca David Juliano 2008-9-25 s.n. Humboldt Miranda, 400 Catbey Ranch Rd. 0 Comment
  RSA15571  Leontodon nudicaulis C. B. Wolf 1927-8-28 1188 -A Humboldt Eureka Bay, on the road to Arcata. Comment
  UCD133993  Leontodon saxatilis H. S. Reed 1941-7-26 s.n. Humboldt near Trinidad. Comment
  HSC39835  Leontodon saxatilis subsp. saxatilis Peter Sorensen 1976-7-11 Humboldt Woodley Island; Humboldt Bay Comment
  CAS-BOT-BC89492  Lepidium heterophyllum Joseph P. Tracy 1942-6-15 17140 Humboldt Miranda. 91 Comment
  CHSC42328  Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg. Comment
  POM299436  Leptosiphon androsaceus S. K. Harris, C. C. Harris 1942-6-17 s.n. Humboldt 1 mile north and 3 miles east of Chalk Mountain 665 Comment
  UC908950  Leptosiphon latisectus Joseph P. Tracy 1927-5-8 7976 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC34537  Lessingia nemaclada Hy-Am Pum 1888-7-23 Humboldt Comment
  SEINET11448001 Image available Leucanthemum vulgare H. E. Parks, S. T. Parks 1943-1 24257 Humboldt Spruce Cove, Trinidad 60 Comment
  UCR70876  Lewisia cotyledon var. howellii Lincoln Constance, R. C. Rollins 1942-5-12 2885 Humboldt MOuth of Bluff Creek, 6 mi NE of Weitchpec 152 Comment
  JEPS5842  Lewisia nevadensis Joseph P. Tracy 1932-7-10 10377 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA10139  Leymus vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt Cape Mendocino, south of point of the Cape 3 Comment
  CAS-BOT-BC436493  Ligusticum apiifolium Joseph P. Tracy 1909-8-29 3084 Humboldt Humboldt Bay, near top of Humboldt Hill 152 Comment
  UC1222812  Ligusticum apiifolium Joseph P. Tracy 1950-9-10 19354 Humboldt Bear R. Ridge 609 Comment
  HSC56215  Ligusticum californicum G. L. Clifton, Terry Griswold 1979-8-2 12225 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC74437  Ligusticum californicum Gail Newton 1980-8-10 2068 Humboldt Near Blake Mtn. 1707 Comment
  UC1198267  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino; Cape Ridge Comment
  CAS-BOT-BC508391  Lilium columbianum Doris K. Kildale 1927-6-26 3596 Humboldt Patrick's Point Comment
  POM87955  Lilium columbianum Le Roy Abrams, Rimo C. Bacigalupi 8260 Humboldt Between Trinidad and Big Lagoon Comment
  RSA259541  Lilium columbianum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2032 Humboldt Bald Hills Road just east of Redwood National Park Comment
  CAS-BOT-BC130640  Lilium kelloggii A. M. Vollmer; L. Beane 1953-7-1 117 Humboldt Freshwater Comment
  HSC15574  Lilium kelloggii D. G. Hauger 1967-7-15 12 Humboldt Kneeland Rd, 0.25 mi. from Kneeland Post office Comment
  CAS-BOT-BC130682  Lilium occidentale Doris K. Kildale 1925-6-25 751 Humboldt Eden Tract - Eureka, Pine's Pasture Comment
  UC666957  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  CAS-BOT-BC130728  Lilium pardalinum Albert Vollmer 1949-7-1 2 Humboldt On Bald Mountain Comment
  HSC57043  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-24 9687 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1197417  Limnanthes douglasii Joseph P. Tracy 1946-5-19 17536 Humboldt Kneeland Prairie 762 Comment
  UC668184  Limnanthes douglasii subsp. nivea Joseph P. Tracy 1937-6-20 15346 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  UC1198568  Linanthus bicolor Joseph P. Tracy 1911-7-10 3487 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1198546  Linanthus bolanderi Joseph P. Tracy 1908-6 2819 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  UC1197836  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1936-8-2 15063 Humboldt French Camp Ridge 1066 Comment
  HSC57865  Linnaea borealis subsp. longiflora G. L. Clifton 1979-7-31 11390 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UCSB13370  Linnaea borealis var. longiflora 1954-6-21 Humboldt Olson Creek, 2 mi. E. NE. of Mad River Comment
  RSA435732  Linum angustifolium J. P. Smith 1973-5-26 6828 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC39788  Linum bienne Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  HSC59497  Linum bienne M. A. Ericksen 1979-5-23 304 Humboldt 880 Central Ave., McKinleyville. Comment
  UC1103033  Listera caurina Joseph P. Tracy 1932-7-20 10740 Humboldt Forks of Tish-Tang-a-tang Creek Trinity Summit 1219 Comment
  HSC98814  Listera caurina Cara Witte 2008-7-7 843 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  UC1193053  Lithocarpus densiflorus P. Zinke 1950-8-3 146 Humboldt 3 mi s Harris Post Office 914 Comment
Read comments
Nov 28 2009
  UC154138  Lithophragma affine Mrs. M. H. Manning Apr. 1902 Humboldt near Hupa; near Hupa Comment
  HSC99457  Lithophragma campanulatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 110 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
  HSC73961  Lithophragma heterophyllum Gail Newton 1980-6-7 130 Humboldt Near Brush Mtn. 1128 Comment
  UC1199421  Logfia gallica Joseph P. Tracy 1929-6-3 8604 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC167234  Lolium multiflorum Jos. Burtt Davy and W. C. Blasdale 1899-7-30 6201 Humboldt Russ Ranch Comment
  RSA32732  Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt Near Arcata. Comment
  UC249793  Lolium perenne Joseph P. Tracy 1923-8-25 6539 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC96281  Lomatium californicum Wanda Naylor, Laurel Goldsmith 2005-6-24 14 Humboldt S of Grouse Mountain on NF1 1595 Comment
  JEPS14184  Lomatium dasycarpum subsp. dasycarpum Lincoln Constance 1934-6-15 889 Humboldt meadow on summit of ridge of Grasshopper (extending down its e. side, few yds. s. of Lookout, Bull Creek Region); Bull Creek Region, S. Fork Eel River Comment
  UC314597  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1923-6-27 6380 Humboldt near the South Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  HSC32939  Lomatium dissectum var. dissectum Thomas W. Nelson, James Nelson 1973-5-28 953 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC56225  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-8-2 12261 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC37192  Lomatium macrocarpum Barbara Kelly 1976-5-13 253 Humboldt Below road at Kneeland Airport Comment
  JEPS14256  Lomatium macrocarpum Joseph P. Tracy 1933-7-25 12894 Humboldt Grouse Mt. 1524 Comment
  HSC45654  Lomatium nudicaule Diane L. Reed 1978-4-22 27 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC249606  Lomatium nudicaule Joseph P. Tracy 1922-4-30 6023 Humboldt mouth of S. Fork Trinity R.; Northern Coast Ranges, S. Fork Trinity R. 152 Comment
  HSC46922  Lomatium tracyi Brad Klipfel 1974-5-27 439 Humboldt Horse Mtn. Comment
  HSC47609  Lomatium utriculatum J. P. Smith 1977-4-23 9025 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC1239545  Lonicera ciliosa Joseph P. Tracy 1936-8-7 15115 1/2 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UC1239548  Lonicera conjugialis Joseph P. Tracy 1932-7-12 10481 Humboldt head Brett Hole; Trinity Summit 1828 Comment
  HSC79550  Lonicera hispidula var. vacillans Kenneth Clark 1980-6-14 669 Humboldt On western slope above Dead Man's Gulch. 145 Comment
  POM284224  Lonicera hispidula var. vacillans Lyman Benson 1929-7-19 1864 Humboldt Dyerville to Mat[t]ole River. Comment
  UCD39986  Lonicera hispidula var. vacillans Rodney Gale Myatt 1971-9-22 1199 Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  HSC100411  Lonicera involucrata Carl C. Marshall Jun 1886 234 Humboldt Vicinity of Humboldt Bay. Comment
  HSC90220  Lonicera involucrata Louise Watson, Jan Meninga Aug 1990 6 Humboldt Mad River Slough and Dunes, 50 ft. N of parking lot, W of trail. Comment
  HSC3927  Lonicera involucrata var. ledebourii H. E. Parks May 1936 5675 Humboldt Spruce Cove, Trinidad. Comment
  UC1223450  Lotus aboriginus Joseph P. Tracy 1949-6-20 18321 Humboldt 12 mi se Arcata (near Boynton Prairie) Comment
  UC1223433  Lotus denticulatus Joseph P. Tracy with Mr. Murphy 1951-6-26 19578 Humboldt vicinity Twin Lakes Comment
  HSC98247  Lotus formosissimus D. E. Anderson 1963-5-25 2485 Humboldt 2-3 mi. N of Capetown Comment
  UC80965  Lotus formosissimus T. S. Brandegee Jun 1891 Humboldt Eureka Comment
  CDA27277  Lotus micranthus E. C. Whitney 1959-5-6 Humboldt Highway 101, south of Eureka. (Brown property) 0 Comment
  SEINET3694377 Image available Lotus oblongifolius Joseph P. Tracy 1930-7-16 8997 Humboldt South Fork Mountain; McKay Camp 1676 Comment
  UC1197286  Lotus purshianus var. purshianus Joseph P. Tracy 1908-6 2885 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC162606  Lotus purshianus var. purshianus Harley P. Chandler Jun 1901 1394 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  RSA246782  Lotus unifoliolatus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35225 a Humboldt Samoa Peninsula. 3 Comment
  HSC72621  Lotus unifoliolatus var. unifoliolatus J. P. Smith 1977-7-3 9235 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  HSC95074  Lotus unifoliolatus var. unifoliolatus Andrea Pickart 2002-7-2 157 Humboldt Humboldt Bay Dunes, Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  UC1191765  Ludwigia hexapetala Malcolm A. Nobs and S. Galen Smith 1949-8-9 1231 Humboldt pond s. side of town of Blue Lake Comment
  HSC32343  Luina hypoleuca D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5637 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC342558  Luina hypoleuca Carl B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 mi. above Orleans Comment
  CAS-BOT-BC201193  Lupinus L. R. Abrams 1922-6-25 8235 Humboldt 2 mi south of Fortuna Comment
  HSC42162  Lupinus arboreus R. J. Mastrogiuseppe, J. D. Mastrogiuseppe 1974-9-3 178 Humboldt Clam Beach Comment
  RSA25890  Lupinus arboreus var. arboreus Carl B. Wolf 1937-9-9 3654 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  HSC38190  Lupinus bicolor Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UC1197277  Lupinus bicolor Joseph P. Tracy 1929-5-5 8564 Humboldt along South Fork of Eel River Miranda (Northern Coast Ranges); , South Fork of Eel River 121 Comment
  UC15950  Lupinus bicolor Harley P. Chandler May, 1901 1146 Humboldt Humboldt Bay; Humboldt Bay, North Coast Ranges 3 Comment
  UC503009  Lupinus bicolor Joseph P. Tracy 1932-5-1 9889 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  HSC32156  Lupinus constancei D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5602 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  SEINET12154562  Lupinus latifolius J. P. Tracy 1939-1 16415 Humboldt Grouse Mtn, "Clear Lake" 1524 Comment
  HSC63290  Lupinus latifolius subsp. viridifolius M. A. Baker 1979-6-27 938 Humboldt Jct. of Tish Tang A Tang Creek and trail through Grogan's Hole Comment
  HSC98986  Lupinus latifolius var. latifolius Cara Witte 2008-7-2 807 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC201370  Lupinus lepidus var. sellulus Joseph P. Tracy 1918-7-5 5021 Humboldt White Thorn Valley Comment
  UC150137  Lupinus littoralis Joseph P. Tracy 1911-11-5 3556 Humboldt Ocean Beach Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  HSC36152  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2049 Humboldt Along Rd. 2S08 to Pine Mtn. 1524 Comment
  RSA15550  Lupinus nanus subsp. nanus Carl B. Wolf 1927-8-30 1244 Humboldt Paradise, 5 or 6 miles N of Ettersburg. Comment
  SD42577  Lupinus polyphyllus Carl B. Wolf 1937-6-19 8912 Humboldt Van Duzen River, 0.3 mile above Bridgeville. 121 Comment
  SEINET12165538  Lupinus propinquus F. H. Utech 1986-1 86 -386 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  SEINET10490278  Lupinus vallicola subsp. apricus Charles Piper Smith 1948-5-10 Smith 48254 Humboldt Hwy 101, Garberville, 0.3 mi N. Comment
  HSC14894  Lupinus variicolor Francis Winter 1960-4-19 Humboldt Samoa Pennisula 6 mi. W of Arcata. Comment
  SD53197  Lupinus variicolor Darley F. Howe 1962-5-21 Humboldt 11.5 miles north of Garberville on Hwy 101 91 Comment
  HSC27555  Luzula comosa J. D. Ackerman 1973-3-27 36 Humboldt 1.5 mi. N of Manila Comment
  UCD142058  Luzula comosa Linda M. Barker 1976-6-14 1596 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC98824  Luzula comosa Cara Witte 2007-5-24 117 Humboldt Along National Forest 1. Approximately 1 mile south of intersection to Horse Mountain Mine and Communication Towers. 1412 Comment
  CDA39249  Luzula parviflora J. Riddell 2002-4-21 47 Humboldt Prairie Creek State Park, Gold Beach roadside. Comment
  HSC59471  Luzula parviflora M. A. Ericksen 1979-5-9 261 Humboldt Behind Jolly Giant Creek HSU campus, Arcata Comment
  CAS-BOT-BC61934  Lycopodium clavatum Donald Branscomb 1959-9-1 s.n. Humboldt Trinidad Comment
  HSC97349  Lycopodium clavatum D. E. Anderson 1965-11-26 4176 Humboldt 2 mi. E. of Moonstone Beach 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
  JEPS63277  Lycopus americanus Joseph P. Tracy 1924-8-31 6853 Humboldt Klamath R. at mouth of Bluff Creek; Klamath R. 91 Comment
  UC179917  Lysichiton americanus Joseph P. Tracy 1914-9-13 4627 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  POM68322  Lysichiton americanus Marcus E. Jones 1924-05 s.n. Humboldt Scotia. [county not specified] Comment
Read comments
Dec 31 2015
  RSA183502  Lysichiton americanus T. L. Grosz 1964-5-1 C Humboldt 300 yards up on Park Ave. and behind Myrtle Ave. Comment
  UCD138081  Lysichiton americanus P. B. Kennedy 1926-3-17 s.n. Humboldt on Highway 5 miles south of Eureka. Comment
  JEPS45971  Lythrum hyssopifolia W. L. Jepson 1902-8-4 2146 Humboldt near Petrolia ( Expedition from Ukiah to the Hupa Indian Reservation) Comment
  HSC78755  Lythrum hyssopifolia L. P. Janeway, Paul Wilson 1984-5-25 821 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  RSA0015870  Lythrum hyssopifolia William J. Ferlatte, B. D. Rogers 1966-8-15 3132 Humboldt North Bank Road, 2 miles north of Arcata. Comment
  RSA0015872  Lythrum hyssopifolia Joseph P. Tracy 1927-8-7 8321 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  RSA0015876  Lythrum hyssopifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9203 Humboldt Samoa Peninsula just east of the drag strip. Comment
  CAS-BOT-BC342797  Madia elegans Doris K. Kildale 1928-7-24 5283 Humboldt Horse Mountain 914 Comment
  CAS-BOT-BC342801  Madia elegans Ella Dales Cantelow 1938-10-26 2182 Humboldt Near Red Cap Creek, s.w. of Orleans Comment
  UC195538  Madia elegans Joseph P. Tracy 1908-6 2683 Humboldt near bridge across Little Van Duzen (nw slope of Buck Mountain); Northern Coast Ranges, Buck Mountain 762 Comment
  RSA15579  Madia elegans subsp. elegans C. B. Wolf 1927-8-28 1162 Humboldt On the Trinity River, 3 miles from Weitchpec Comment
  HSC58706  Madia gracilis Griswold, Butler 1979-7-10 7133 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  UCD20173  Madia gracilis J. M. Tucker 1948-9-3 1856 Humboldt Ridge between Horse and Grouse Mountains. Comment
  RSA11144  Madia minima C. B. Wolf 1934-7-2 5861 Humboldt Snow Camp (east of Korbel) 915 Comment
  CAS-BOT-BC343587  Madia sativa Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC13726  Maianthemum dilatatum W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  UC545825  Maianthemum dilatatum H. E. Parks May, 1932 4289 Humboldt Trinidad, Bishop Pine Lodge Comment
  CAS-BOT-BC508519  Maianthemum dilatatum Alice Eastwood 1907-4-21 35 Humboldt Port Trinidad 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
  UC726017  Maianthemum dilatatum A. A. Heller 1937-6-8 15899 Humboldt 3 mi. n. Trinidad (forest near coast at Bishop Pine Lodge); Bishop Pine Lodge Comment
  HSC45493  Maianthemum racemosum subsp. amplexicaule Maralyn O'Meara 1972-6-8 105 Humboldt Along Bald Hills Rd., 18 mi. from junction with Hwy. 101 Comment
  RSA0009527  Maianthemum racemosum subsp. amplexicaule Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  POM187937  Malacothrix floccifera Marcus E. Jones 1931-7-16 29095 Humboldt Junction, East of Arcata. Comment
  HSC41005  Malacothrix floccifera J. O. Sawyer 1975-10-17 2716 Humboldt Along road to Brush Mountain Lookout 1189 Comment
  HSC18696  Malus fusca W. R. Brigham 1962-5-19 10 Humboldt S of Big Lagoon. Comment
  HSC7036  Marah oregana Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  SJSU11758  Marah oregana R. D. Spadoni 1965-3-26 Humboldt Trinidad Comment
  UC203564  Marah oregana Joseph P. Tracy 1918-4-28 4887 Humboldt Eureka Northern Coast Ranges 0 Comment
  UCR27001  Marah oregana A. C. Sanders 1981-8-4 2261 Humboldt Patrick's Point State Park, north of Eureka 30 Comment
  UC1145134  Melica aristata Joseph P. Tracy 1949-7-19 18374 Humboldt Friday Camp Grouse Mountain (Grouse Mountain) 1219 Comment
  RSA10132  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  UCD87130  Melica californica August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Graberville. Comment
  CAS-BOT-BC281322  Melica harfordii Joseph P. Tracy 1926-6-20 7651 Humboldt North Coast Ranges. Horse Mountain 1524 Comment
  UC38835  Melica harfordii Harley P. Chandler Jun 1901 1477 Humboldt Klamath River; North Coast Ranges 365 Comment
  UCD87370  Melica harfordii A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3453 Humboldt 2 miles north of Orleans. Klamath River. Comment
  UC34140  Melica subulata Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5405 Humboldt Hubbard's Station; North Coast Ranges Comment
  UCD88618  Melica subulata August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Garberville. Comment
  UCD88643  Melica subulata A. H. Murphy 1951-5-15 s.n. Humboldt 3/4 mile south of South Fork on McCann Road. Comment
  UC1225834 Image available Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt 2 mi s Field's Landing (along edges of foothills); s of Field's Landing 6 Comment
  HSC49016  Mentha pulegium Patricia Shesgreen 1978-8-2 127 Humboldt Along rd. at 11th and B St. Arcata Comment
  RSA287065  Menziesia ferruginea Glen Thompson 1937-08 s.n. Humboldt Patrick's Park, north of Trinidad. 15 Comment
  UC582509  Micropus californicus var. californicus Joseph P. Tracy 1932-5-1 9854 Humboldt vicinity Garberville 121 Comment
  UC88381  Micropus californicus var. californicus W. W. Price 1890-6-30 Humboldt Mad River Comment
  UC1223202  Microseris acuminata Joseph P. Tracy 1948-6-13 18058 Humboldt roadside 3 mi w Harris 762 Comment
  UC1239522  Microseris douglasii subsp. douglasii Joseph P. Tracy 1938-6-9 15887 Humboldt 3 mi w Harris 914 Comment
  HSC57315  Microseris nutans Griswold, Butler 1979-7-10 6335 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC40549  Microsteris gracilis Thomas W. Nelson, Jane P. Nelson 1976-5-23 2519 Humboldt SW facing slopes 1666 Comment
  UC1196767  Mimulus alsinoides Joseph P. Tracy 1946-6-23 175900 Humboldt Kneeland Prairie 762 Comment
  RSA14133  Mimulus aurantiacus var. aurantiacus Elmer I. Applegate 1923-9-12 3988 Humboldt Stone Lagoon, below Orick Comment
  HSC39618  Mimulus breweri Thomas W. Nelson, Jane P. Nelson 1976-6-15 2722 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC100668  Mimulus cardinalis Carl C. Marshall Jul 1887 438 Humboldt Eel River Valley. Comment
  HSC72408  Mimulus dentatus J. P. Smith 1973-5-26 6821 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC198662  Mimulus douglasii Joseph P. Tracy 1915-5-20 4639 Humboldt Eureka Northern Coast Ranges Comment
  UC582703  Mimulus guttatus Joseph P. Tracy 1935-5-25 13859 Humboldt Fort Seward 106 Comment
  HSC20754  Mimulus guttatus D. E. Anderson 1963-5-18 2442 Humboldt 1.4 mi. W of Berry Summit Comment
  UC582696  Mimulus microphyllus Joseph P. Tracy 1936-5-29 14818 Humboldt French Camp Ridge 1066 Comment
  HSC102582  Mimulus moschatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1569 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC56105  Mimulus moschatus G. L. Clifton 1979-7-31 11839 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC56317  Mimulus moschatus Overton, Butler 1979-8-2 12656 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74453  Mimulus nanus var. nanus Gail Newton 1980-8-10 1994 Humboldt Near Blake Mtn. 1798 Comment
  UC26991  Mimulus nasutus C. C. Marshall 1888-1 Humboldt Comment
  HSC20828  Mimulus pulsiferae H. E. Parks, J. P. Tracy 1937-6-27 11087 Humboldt Grouse Mtn. 1433 Comment
  CAS-BOT-BC174682  Minuartia cismontana H. E. Parks; J. P. Tracy 1930-5-25 0866 Humboldt Laribee Valley, Eastern Humboldt Co. Comment
  JEPS87058  Minuartia nuttallii subsp. gregaria Dean W. Taylor 1991-8-15 12294 Humboldt ridge 1 mi w Horse Mountain; North Coast Ranges 1493 Comment
  UC161043  Minuartia pusilla Joseph P. Tracy 1910-4-24 3130 Humboldt Humboldt Bay Northern Coast Region (sand dunes at ocean beach) Comment
  HSC49620  Mitella ovalis R. York 1979-4-9 212 Humboldt Behind HSU campus Comment
  HSC102181  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1095 Humboldt Patterson Meadows 1566 Comment
  HSC38487  Moehringia macrophylla D. E. Anderson, J. P. Smith 1971-7-6 - 1272 Humboldt Horse Mtn. Comment
  UC8146  Moehringia macrophylla Harley P. Chandler June, 1901 1284 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  HSC49983  Moehringia macrophylla M. A. Baker 1979-6-7 788 Humboldt N bank of road to Snow Mtn. 610 Comment
  UCD98355  Moehringia macrophylla D. C. Hagar 1957-5-16 94 Humboldt Happy Camp Mountain, 7.5 miles southeast of Willow Creek and 5.25 milse northeast of Salyer. 1219 Comment
  HSC41256  Monardella odoratissima Brad Klipfel 1974-6-25 446 Humboldt Horse Mtn. Comment
  HSC58044  Monardella odoratissima subsp. pallida Gilbert Muth 1979-8-1 11900 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC73745  Monardella odoratissima subsp. pallida M. A. Baker 1980-7-19 2989 Humboldt Near Bret Hole. 1814 Comment
  UC1222870  Monardella purpurea Joseph P. Tracy 1950-7-27 18920 Humboldt at intersection of Haynes Flat Road Coon Mountain 944 Comment
  UC2035937  Monardella villosa C. Epling Aug 1933 Humboldt Richardson Grove Comment
  SEINET13948727 Image available Monardella villosa H. Lewis 1940-1 Humboldt 1 mi N of Richardson Grove State Park Comment
  RSA0022786  Monardella villosa subsp. subserrata F. W. Peirson 1926-7-13 7050 Humboldt Near Blue Lake, Mad River Comment
  UC577376  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15427 Humboldt Vicinity Garberville 121 Comment
  CAS-BOT-BC128708  Moneses uniflora Doris K. Kildale 1926-6-6 2115 Humboldt Trail to Gold Bluffs Comment
  CAS-BOT-BC444806  Montia diffusa Volney Rattan 1875-1-1 s.n. Humboldt Unspecified Comment
  UC161061  Montia diffusa Joseph P. Tracy 1911-7-7 3404 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC99495  Montia fontana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 155 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  CAS-BOT-BC445045  Montia linearis Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC275280  Montia parvifolia Joseph P. Tracy 1923-6-20 6311 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  JEPS17211  Montia parvifolia Milo S. Baker 1923-7-31 143 a Humboldt 6 mi s of Kneeland (and w of Iaqua, Booths Run); North Coast, Booths Run Comment
  JEPS43291  Montia parvifolia W. L. Jepson 1902-6-30 1961 Humboldt from Ukiah to the Hupa Indian Reservation (Redwood Creek); Redwood Creek Comment
  CAS-BOT-BC260571  Muhlenbergia filiformis Joseph P. Tracy 1930-7-16 8920 Humboldt South Fork Mountain: at McKay Camp 1676 Comment
  UCD86806  Muhlenbergia mexicana Joseph P. Tracy 1922-9-3 6111 Humboldt Klamath River at Bluff Creek. 91 Comment
  UC552838  Myosotis discolor Joseph P. Tracy 1935-5-25 13847 Humboldt Fort Seward North Coast Ranges, Fort Seward 106 Comment
  UC582608  Myosotis discolor Joseph P. Tracy 1936-6-9 14891 Humboldt Cape Ridge back of Cape Mendocino; Cape Ridge 243 Comment
  HSC90317  Myosotis discolor Jean Hanson 1980-5-24 76 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka, W end of island, base of dike on S side Comment
  CHSC77459  Myosotis latifolia Vernon H. Oswald 2000-4-3 9910 Humboldt County Parking Lot at Elk Head northwest of Trinidad. 41 Comment
  UCR179282  Myosotis latifolia R. G. Swinney 1968-3-29 239 Humboldt East of Humboldt State College, Arcata 152 Comment
  HSC34644  Myosotis sylvatica John Palmer 1975-4-9 295 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  CAS-BOT-BC101671  Myrica californica Joseph P. Tracy 1931-4-12 9332 Humboldt Dows Prairie 60 Comment
  RSA174002  Myrica californica Robert F. Thorne 1957-9-2 19009 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  RSA46886  Myrica californica Doris K. Kildale 1926-3-27 1551 Humboldt Big Lagoon. Comment
  HSC77885  Myriophyllum aquaticum Wendy Madar 1978-5-16 Humboldt Catfish Lake, 3 mi. S Eureka Comment
  UC1173635  Narthecium californicum Joseph P. Tracy 1930-7-17 9003 Humboldt meadow at McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  HSC12786  Nasturtium officinale M. J. Athey 1970-10-28 5 Humboldt Along old road to Trinidad, along E bank, Trinidad Comment
  UC1197897  Navarretia capillaris Joseph P. Tracy 1935-7-25 14227 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC75514  Navarretia divaricata J. O. Sawyer, R. J. Cole 1977-7-3 3012 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC907952  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  SEINET202730  Navarretia pubescens Joseph P. Tracy 1950-6-23 18861 Humboldt Dobbyn Creek, 3 miles NE of Alderpoint. 213 Comment
  JEPS70462  Navarretia squarrosa W. L. Jepson 1921-8-11 9416 Humboldt Big Lagoon Humboldt Coast Comment
  HSC17146  Navarretia squarrosa S. V. Thompson 1967-7-24 22 Humboldt Near Boulder Creek Comment
  UCD48693  Navarretia squarrosa John M. Tucker 1948-9-4 1862 Humboldt Beck's Ranch, Hydesville, Humboldt County, California. Comment
  CHSC19477  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 miles north of Willow Creek along road on east side of Trinity River. Comment
  JEPS1882  Nemophila menziesii var. atomaria Joseph P. Tracy 1927-4-17 7903 Humboldt 274 Comment
  UC1239752  Nemophila menziesii var. atomaria Joseph P. Tracy 1923-4-1 6174 Humboldt 3 mi e Blue Lake (Mankin Place); e of Blue Lake, Mankin Place 274 Comment
  RSA43880  Nicotiana acuminata H. M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  CAS-BOT-BC233456  Nicotiana glauca Clare R. Wheeler 1979-8-13 1205 Humboldt Avenue of the Giants, SW Mailliard Grove, Humboldt State Park 152 Comment
  UC198618  Nicotiana quadrivalvis Joseph P. Tracy 1916-9-5 4764 Humboldt 4 mi above South Fork of Eel River mouth; Northern Coast Ranges 60 Comment
  HSC6969  Noccaea fendleri subsp. californica D. E. Anderson 1962-7-14 2261 Humboldt Comment
  UC902226  Nothochelone nemorosa Joseph P. Tracy 1948-8-15 18138 Humboldt on Ridge 2 mi e of Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  HSC41308  Notholithocarpus densiflorus Brad Klipfel 1974-7-23 471 Humboldt Horse Mountain Comment
  HSC68221  Notholithocarpus densiflorus var. densiflorus J. P. Smith, Steve Selva 1970-6-14 3852 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC62976  Nuphar polysepala David Wheeler 1979-5-18 117 Humboldt Fieldbrook Elementary School, behind the baseball field Comment
  RSA246753  Oenanthe sarmentosa R. F. Thorne, P. Everett 1965-8-7 35212 Humboldt Samoa Peninsula: near sea level Comment
  SEINET12119027  Oenanthe sarmentosa J. P. Tracy 1950-1 19348 Humboldt Field's Landing, 2 mi S of town 6 Comment
  CHSC70160  Oenothera wolfii David K. Imper 1991-9-4 Humboldt Grown in Eureka garden. Parents collected at junc. Hwy 299 and Big Hill Rd, Hoopa Square 91 Comment
  JEPS11667  Orobanche californica subsp. californica Joseph P. Tracy 1918-7-1 4970 Humboldt Cape Mendocino, southwestern slopes, fronting the ocean, three miles south of Point of the Cape. Comment
  SEINET200710  Orobanche californica subsp. californica Joseph P. Tracy 1918-7-1 4970 Humboldt Cape Mendocino southwestern slopes fronting the ocean three miles south of Point of the Cape 3 Comment
  UC154274  Orobanche fasciculata Mrs. M. H. Manning 1901-6-7 97 Humboldt Near Hupa. Comment
  HSC102611  Orobanche uniflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1598 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC1197575  Orthilia secunda Joseph P. Tracy 1935-7-23 14156 Humboldt Trinity Summit, Lower end of Brett Hole 1584 Comment
  UC1326243  Orthilia secunda Milo S. Baker 1947-8-10 11898 Humboldt 15 mile NE of Hoopa at end of Forest Road in fir Forest 1371 Comment
  CAS-BOT-BC458028  Orthilia secunda Doris K. Kildale 1925-8-16 1155 Humboldt Trinity Summit Trail near forks of Tish-Tang-i-tang Comment
  HSC56000  Orthocarpus imbricatus Walter Overton, Marvin Butler 1979-7-31 11445 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC45396  Osmorhiza berteroi Thomas W. Nelson, Jane P. Nelson 1977-7-4 3596 Humboldt Beside pond above Alder Springs 1585 Comment
  HSC45577  Osmorhiza berteroi Diane L. Reed 1978-5-7 48 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  HSC48765  Osmorhiza occidentalis Brad Klipfel 1973-6-16 101 Humboldt Along ridge trail SE of N Trinity Mountain 1829 Comment
  HSC16717  Oxalis articulata subsp. rubra William J. Ferlatte 1963-4-27 23 Humboldt Waste place near 11th and B street, in Arcata. Comment
  HSC16708  Oxalis oregana D. E. Anderson 1963-3-1 2370 Humboldt E Fork Forest Camp, along E Fork Willow Creek. Comment
  SBBG25583  Oxalis oregana E. R. Blakley 1966-8-17 6794 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  HSC16727  Oxalis oregana Francis Winter 1960-5-7 Humboldt Pine Ridge Summit 686 Comment
  HSC83316  Oxalis oregana R. W. Becking 1987-5-2 Humboldt Humboldt State University campus, adjacent to back steps on S side of Natural Resources building Comment
  UC1103425  Oxalis oregana J. P. Tracy 1906-4-15 2411 Humboldt near Kobel; Bald Mt. 609 Comment
  UCSB7499  Oxalis oregana Phillips, Priscilla 1958-6-7 Humboldt Near entrance to Prairie Creek Redwood Park, north of Orick Comment
  UC1103428  Oxalis trilliifolia Joseph P. Tracy 1932-7-15 10584 Humboldt ridges e Corral Prairie (Trinity Summit); Klamath Mtns 1828 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
  CAS-BOT-BC363261  Packera bolanderi var. bolanderi Gordon Leppig 2002-6-27 1763 Humboldt Grizzly Creek State Park, ~300m NW of campground on trailside on rocky slope above Grizzly Crk. 100 Comment
  UC1103781  Panicum acuminatum var. acuminatum Joseph P. Tracy 1927-5-14 8003 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley nr South Fork 182 Comment
  UCD88713  Panicum acuminatum var. fasciculatum A. H. Murphy 1948-9-14 Humboldt K-weed beetle field; Toby and Prior Ranch, south of Blocksburg. Comment
  CAS-BOT-BC253708  Panicum capillare Peter Rubtzoff 1968-9-4 5956 Humboldt Goulds Bar, S Fork Eel River SE of Weott Comment
  HSC12343  Panicum capillare Steve Dorei 1970-10-31 126 Humboldt Scotia bluff area, N side of railroad tracks. Comment
  UC33881  Panicum capillare Chestnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  SEINET182648 Image available Parapholis incurva S. K. Harris, J. P. Tracy 1936-6-6 3218 Humboldt Eureka, California Comment
  CDA6200  Parentucellia viscosa D. G. Kelch 2007-7-25 7 .505 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  HSC104292  Parentucellia viscosa Samantha E. Andres 2016-5-19 7 Humboldt Mad River County Park, coastal trail to the Mad River Spit 4 Comment
  UC1222445  Parentucellia viscosa Joseph P. Tracy 1938-6-17 15953 Humboldt Cape Mendocino 152 Comment
  UC1222448  Parentucellia viscosa Joseph P. Tracy 1934-6-18 13230 Humboldt Eureka 6 Comment
  CAS-BOT-BC202805  Paxistima myrsinites Joseph P. Tracy 1942-6-23 17245 Humboldt 2 mi. E of Box Camp. Trinity Summit 1524 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
  JEPS10346  Pedicularis densiflora Lincoln Constance 1934-6-7 832 Humboldt Johnson Prairie; Bull Creek Region, South Fork Eel River Comment
  RSA187565  Pellaea andromedifolia S. K. Harris 1960-7-11 21651 Humboldt 3.8 miles west of Redway Comment
  HSC54218  Pellaea brachyptera Griswold, Butler 1979-7-12 7282 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC1074  Pellaea mucronata var. mucronata J. P. Tracy 1933-6-13 12561 Humboldt Hoopa Mtn., near summit on rd. from Hoopa westward to Bair's 1067 Comment
  HSC55832  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-25 10748 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1198045  Penstemon anguineus Harold E. Parks and Joseph P. Tracy 1949-6-25 11666 Humboldt at Mud Springs on Trinity Summit Trinity Summit, at Mud Springs 1524 Comment
  HSC55839  Penstemon deustus G. L. Clifton, Terry Griswold 1979-7-25 10786 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS11368  Penstemon heterophyllus var. purdyi Lincoln Constance 1934-5-26 676 Humboldt s end of Dyerville Bridge Bull Creek Region, South Fork Eel River, Dyerville Bridge (South Fork Eel River, Bull Creek Region) 45 Comment
  UC1222787  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1950-6-15 18782 Humboldt 7 mi n Harris (at the Jenk's Ranch); n of Harris, at the Jenk's Ranch Comment
  JEPS28976  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16544 Humboldt Garberville Garberville (along river) 152 Comment
  HSC32679  Penstemon purpusii Thomas W. Nelson 1973-7-10 1029 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  UC165061  Pentachaeta alsinoides Joseph P. Tracy 1903-5-23 1890 Humboldt dry hillside at Alder Point; Eel River 243 Comment
  HSC33659  Pentagramma triangularis M. Wetherwax 1975-6-1 174 Humboldt Along Butler Valley Rd. 0.5 mi. past the bridge over the Mad River Comment
  UC154075  Perideridia gairdneri subsp. borealis J. P. Tracy Aug 26 1900-May 12 1901 Humboldt near Eureka; Immediate vicinity of Eureka 0 Comment
  SEINET12119282  Perideridia kelloggii J. P. Tracy 1950-1 19382 Humboldt Berry's Mountain, E of Redwood Creek on Trinity Highway 549 Comment
  UC1222744  Perideridia kelloggii Joseph P. Tracy 1950-10-7 19382 Humboldt e Redwood Creek (on the Trinity Hwy); Berry's Mountain 548 Comment
  UC1389995  Perideridia oregana T. I. Chuang and R. S. Mitchell 1965-6-30 6002 Humboldt Grouse Mountain; on Clear Lake Rd. Comment
  HSC56308  Perideridia parishii subsp. latifolia Overton, Butler 1979-8-2 12627 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC95377  Persicaria lapathifolia Andrea Pickart 2002-8-7 193 Humboldt Arcata Marsh along I St. 20 Comment
  HSC26590  Petrorhagia dubia D. E. Anderson 1973-4-20 Humboldt Flood plain of Eel River 5 mi. E of Founders Tree area, Avenue of the Giants Comment
  SEINET12118794  Peucedanum tomentosum H. P. Chandler 1901-1 1445 Humboldt Klamath River, North Coast Ranges 274 Comment
  SDSU6621  Phacelia D. F. Howe 1962-5-21 3300 Humboldt 24.5 miles north of garberville on #101. 61 Comment
  HSC37230  Phacelia bolanderi Lon Hall 1975-6-19 386 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC56933  Phacelia mutabilis G. L. Clifton, Butler 1979-7-26 9369 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC58319  Phacelia mutabilis Overton, Butler 1979-8-2 12609 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC13670  Phacelia nemoralis subsp. oregonensis D. E. Anderson 1963-3-16 2391 Humboldt Scotia Bluffs Comment
  HSC102194  Phacelia procera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1108 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  UC1239735  Phacelia procera Joseph P. Tracy Jul 16 1930-Jul 19 1930 9084 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  JEPS1045  Phacelia rattanii Joseph P. Tracy 1923-6-20 6305 Humboldt White Thorn Valley 304 Comment
  CAS-BOT-BC258826  Phalaris angusta W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  CAS-BOT-BC258864  Phalaris aquatica Henry M. Pollard 1947-9-1 s.n. Humboldt Field near Perch Creek, Orleans region Comment
  UCD88519  Phalaris arundinacea J. W. Logan 1926-6-2 2 Humboldt Ferndale. Rusk Ranch. Comment
  UCD88521  Phalaris arundinacea J. W. Logan 1926-6-2 4 Humboldt Ferndale. Rusk Ranch. Comment
  SEINET200962 Image available Phalaris californica J. P. Tracy 1912-7-25 3819 Humboldt Kneeland Prairie N Coast Ranges 762 Comment
  UCD88767  Phalaris californica Joseph P. Tracy 1938-6-7 15861 Humboldt N side of Mad River, 1/2 mile E of bridge on Arcata - Blue Lake highway. 30 Comment
  CAS-BOT-BC76559  Philadelphus lewisii H. E. McMinn 1922-8-4 339 Humboldt Along Van Duzer River. Comment
  CAS-BOT-BC76569  Philadelphus lewisii L. R. Abrams 1916-7-11 6006 Humboldt Between Blocksberg and Bridgeville Comment
  JEPS49603  Philadelphus lewisii Joseph P. Tracy 1926-6-27 7696 Humboldt Horse Mountain Northern Coast Ranges 1066 Comment
  UC154152  Philadelphus lewisii Mrs. M. H. Manning 1900-1 Humboldt Hupa Comment
  HSC58693  Phleum alpinum Overton, Butler 1979-8-2 12694 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC183739  Phleum pratense Joseph P. Tracy 1912-7-27 3888 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCD89642  Phleum pratense Joseph P. Tracy 1948-8-8 18089 Humboldt Lagna, near the school house. 609 Comment
Read comments
Jun 16 2013
  HSC41478  Phyla nodiflora Ed Cope, R. Runyon 1977-7-20 132 Humboldt 15th and H St., Arcata. Comment
  CAS-BOT-BC140580  Physocarpus capitatus Thomas Nelson; Linda Barker 1977-6-3 3387 Humboldt On flood plain of Mad River at south end of Mad River Bridge 53 Comment
  HSC18711  Physocarpus capitatus C. B. Wolf 1927-8-30 1248 Humboldt 3 mi. S of Thorn along old coast road Comment
  UC1198699  Physocarpus capitatus Joseph P. Tracy 1933-6-25 12619 Humboldt along Eel River Camp Grant (3 mi above junction of South Fork) 60 Comment
  UC160987  Physocarpus capitatus Joseph P. Tracy 1911-5-29 3270 Humboldt near Hydesville 60 Comment
  UC203837  Physocarpus capitatus Joseph P. Tracy 1918-9-29 5114 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges 60 Comment
  CHSC67760  Picea sitchensis Vernon H. Oswald 1997-1-29 8304 Humboldt Mad River County Park NW of Arcata, S of the mouth of Mad River. Comment
  CHSC81  Picea sitchensis M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  NY34414  Picea sitchensis L. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad Comment
  RSA175261  Picea sitchensis Robert F. Thorne 1957-9-3 19011 Humboldt Little River Beach, few miles S of Trinidad. 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
  UC55647  Picea sitchensis J. P. Tracy 1901-2-3 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC78290  Pinus attenuata Carl B. Wolf 1937-8-13 9240 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  CAS-BOT-BC78378  Pinus contorta Alice Eastwood 1923-8-14 s.n. Humboldt Samoa Comment
  POM21765  Pinus contorta var. contorta L. R. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad. Comment
  RSA46681  Pinus contorta var. contorta Doris K. Kildale 1937-8-12 15084 B Humboldt South Fork Mountain. Comment
Read comments
Jun 21 2012
  HSC72826  Pinus monticola Gail Newton 1980-6-16 192 Humboldt Near Onion Mtn. 1280 Comment
  HSC99047  Pinus ponderosa var. ponderosa Cara Witte 2008-6-13 725 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  CAS-BOT-BC136587  Piperia michaelii L. B. Kildale 1930-8-3 10495 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC158324  Piperia multiflora J. D. Ackerman 1974-8-13 407 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  SEINET10296823  Piperia unalascensis Unknown 1932-7-12 10453 Humboldt Trinity Summit Fir woods near Corral Prairie Altitude 5200 feet Comment
  CDA42401  Pittosporum tenuifolium R. Robison 2014-5-5 s.n. Humboldt Trinidad State Beach, in area west of town, southwest of State Park Road parking lot, along path toward Ewing Street. 0 Comment
  UC1347181  Plagiobothrys bracteatus Alice Eastwood and John Thomas Howell 1937-6-23 4811 Humboldt Little Van Duzen River Comment
  HSC81667  Plagiobothrys bracteatus Thomas W. Nelson, Jane P. Nelson 1980-7-15 6069 Humboldt Old logging rds. SE of Lundbar Hills 30 Comment
  UC526811  Plagiobothrys nothofulvus Joseph P. Tracy 1932-5-1 9862 Humboldt near Garberville; North Coast Ranges, Redway 182 Comment
  UC526821  Plagiobothrys reticulatus Joseph P. Tracy 1932-5-10 9962 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges, Mattole Valley 30 Comment
  UC1222210  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17115 Humboldt Englewood Prairie 91 Comment
  UC1222219  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-12 17112 Humboldt Prairie Creek at the prairie at Elk Grove; Prairie Creek, Elk Grove Comment
  UC1222220  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17161 Humboldt 1 mi ne town [sic] Comment
  UC184235  Plagiobothrys reticulatus Joseph P. Tracy 1909-7-4 3009 Humboldt at Eureka; Northern Coast Region, Eureka 0 Comment
  UC526822  Plagiobothrys reticulatus Joseph P. Tracy 1928-6-24 8473 Humboldt head Yager Creek (East Ranch); North Coast Ranges, head Yager Creek, East Ranch 762 Comment
  JEPS60988  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1932-5-10 9962 Humboldt near Petrolia; Northern Coast Ranges, Mattole Valley 30 Comment
  JEPS61046  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1942-6-15 17142 Humboldt Miranda South Fork of Eel River 121 Comment
  UC1222199  Plagiobothrys scouleri Joseph P. Tracy 1950-6-8 18724 Humboldt Bear River Ridge Comment
  UC1239624  Plagiobothrys tenellus Joseph P. Tracy 1918-5-1 4910 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC526812  Plagiobothrys tenellus Joseph P. Tracy 1932-5-1 9863 Humboldt near Garberville; North Coast Ranges, Redway 182 Comment
  BLMAR605  Plantago Jennifer Wheeler 2011-4-1 605 Humboldt Mattole Beach, Located below Smith gulch 6 Comment
  HSC99993  Plantago coronopus J. P. Smith, & J. O. Sawyer 2009-10-4 12688 Humboldt Growing along rock pathway at Wedding Rock, Patrick's Point State Park 44 Comment
  HSC16826  Plantago erecta L. H. Myers 1963-5-14 13 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  UC1196136  Plantago erecta Joseph P. Tracy 1900-6-5 836 Humboldt Busksport Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC62684  Plantago lanceolata Michelle Stevens 1979-4-21 58 Humboldt Ponds across from Clam Beach 0 Comment
  HSC16850  Plantago major Anderson 1961-8-25 1748 Humboldt 1.5 mi. S of Trinidad Comment
  HSC54017  Platanthera dilatata var. leucostachys Griswold, Butler 1979-7-12 7161 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  RSA21199  Platanthera leucostachys Carl B. Wolf 1937-8-10 9087 Humboldt Big Lagoon, bog at state park. 6 Comment
  UC1196297  Platystemon californicus H. E. Parks and Joseph P. Tracy 1930-5-25 8718 Humboldt Larrabee Valley; Northern Coast Ranges, Larrabee Valley 670 Comment
  UC146105  Platystemon californicus Joseph P. Tracy 1904-4-24 2020 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  HSC16789  Platystemon californicus J. P. Tracy 1904-4-24 2020 Humboldt Humboldt Bay Comment
  SEINET516269  Platystemon californicus Vernon H. Oswald 1998-4-16 8915 Humboldt North Spit of Humbldt Bay, west side of New Navy Base Rd. 1.7 mi S of Hwy. 255. Comment
  UC1018910  Plectritis brachystemon S. C. Dyal 1938-6-11 719 a Humboldt 11 mi w of Dinsmore (on McClellan Mountain); McClellan Mountain Comment
  HSC95648  Plectritis congesta Andrea Pickart 2002-4-3 34 Humboldt Samoa Dunes, Eureka airport. 15 Comment
  UC1239579  Plectritis congesta Joseph P. Tracy 1901-4-14 1016 Humboldt Ocean Beach at Humboldt Bay Ocean Beach Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC70751  Pleuricospora fimbriolata R. York 1980-5-17 532 Humboldt Near Le Perron Peak 1066 Comment
  JEPS109805  Pleuropogon refractus Dean W. Taylor 2004-6-24 19141 Humboldt head of Madden Creek, Ammon Ridge, seepage area along logging spur road arterial to Forest Road 5N81 1432 Comment
  RSA167306  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
  SEINET10589989  Poa Rattan 1878-1 RATTAN s.n. Humboldt Common in inherited ... Comment
  BLMAR436  Poa confinis Jennifer Anthony-Wheeler 2008-6-18 436 Humboldt Samoa/Malel Dunes 9 Comment
  HSC10704  Poa douglasii R. H. Berg 1963-5-8 67 Humboldt On sand dunes near Lanphere's, Arcata. Comment
  UCR80242  Poa douglasii J. P. Smith, Thomas W. Nelson 1977-6-30 9223 B Humboldt North Coast, Samoa Peninsula just east of the drag strip 6 Comment
  UC1103794  Poa howellii Joseph P. Tracy 1918-5-1 4905 Humboldt Kneeland Prairie, McBride Rd Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC90698  Poa macrantha Gail Newton 1982-6-5 3576 Humboldt Elk River Wildlife Area, Eureka. Comment
  RSA28797  Poa macrantha H. E. Parks 1934-05 4805 Humboldt Little River lagoon Comment
  CAS-BOT-BC255941  Poa pratensis Joseph Burtt Davy; Walter C. Blasdale 1899-6-16 5554 Humboldt Scotia Comment
  UC1132739  Poa pratensis subsp. pratensis H. L. Person 1932-5-11 Humboldt Arcata; Eureka Quadrangle Comment
  SEINET200627 Image available Poa scabrella Joseph P. Tracy 1912-7-31 395 Humboldt Buck Mountain,near the summit Comment
  HSC40517  Poa secunda subsp. secunda Thomas W. Nelson, Jane P. Nelson 1976-6-22 2876 Humboldt Area at Goat Hill. 1666 Comment
  UC180504  Poa trivialis Joseph P. Tracy 1914-7-4 4521 Humboldt near Korbel (on Bald Mt rd); Northern Coast Ranges 457 Comment
  HSC10680  Poa unilateralis C. S. Chavez 1965-4-22 48 Humboldt 1 mi. S of Samoa on Samoa Rd. Comment
  CAS-BOT-BC232886  Polemonium carneum Carl B. Wolf 1937-6-17 8881 Humboldt Big Lagoon, S side at W of Redwood Highway 6 Comment
  UC1191118  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  HSC100599  Polygala cucullata Carl C. Marshall Jun 1887 408 Humboldt Dobbyn's Creek. Comment
  UC1198092  Polygonum californicum Joseph P. Tracy 1929-8-18 8657 Humboldt opposite Buck Mountain; Van Duzen River, Dinsmore's 762 Comment
  UC672967  Polygonum davisiae Joseph P. Tracy 1935-7-30 14383 Humboldt Salmon Summit 2103 Comment
  HSC53981  Polygonum douglasii Griswold, Butler 1979-7-11 7056 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC55078  Polygonum douglasii G. L. Clifton, Griswold 1979-7-31 11691 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UCD100266  Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt Box Camp Trail, Trinity Summit. 1676 Comment
  UC1222470  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1912-7-31 3941 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 Comment
  HSC98067  Polygonum douglasii var. douglasii Cara Witte 2007-7-11 508 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  CAS-BOT-BC109186  Polygonum paronychia Ira L. Wiggins 1930-7-11 4685 Humboldt Near Samoa. Comment
  HSC103385  Polygonum phytolaccifolium K. Auker, R. Battleson 2007-6-15 13 Humboldt Grouse Mtn.; along Forest Service Road 5N04, 1.0 mi. E of FS Road NF1. 1494 Comment
  HSC33651  Polypodium californicum Margaret Weatherwax 1975-6-26 7 Humboldt Road from Korbel to Maple Creek, 2 mi. SW of Korbel Comment
  RSA244982  Polypodium calirhiza D. A. Haskell 1966-4-16 13 Humboldt Coastal strand sand dunes near town of Samoa Comment
  JEPS93137  Polypodium scouleri M. Wetherwax 1992-5-20 2434 Humboldt coastal bluff s side of Wedding Rock; Patrick's Point State Park 30 Comment
  RSA689967  Polypodium scouleri Charlotte M. Hoak 1931-7-15 s.n. Humboldt Below Big Lagoon Comment
  CAS-BOT-BC233070  Polypogon interruptus Kenneth Clark 1980-5-10 645 Humboldt Shelter Cove, On coastal bluffs of Point Delgada Comment
  UC1145081  Polypogon interruptus Joseph P. Tracy 1940-10-5 16748 Humboldt Trinidad 6 Comment
  UC39737  Polypogon interruptus Harley P. Chandler June, 1901 1332 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 304 Comment
  UCD91028  Polypogon interruptus Joseph P. Tracy 1936-6-8 14871 Humboldt Trinidad. 9 Comment
  HSC10833  Polypogon maritimus J. P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake. 15 Comment
  UCD91310  Polypogon monspeliensis J. B. Davy; W. L. Blasdale 1899-5 5549 Humboldt Scotia. Comment
  RSA698536  Polystichum munitum J. R. Bruff 1937-8-17 922 Humboldt Richardson Grove. Comment
  HSC56204  Populus trichocarpa G. L. Clifton, Griswold 1979-8-2 12195 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA171967  Populus trichocarpa Robert F. Thorne 1957-9-2 18990 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC176664  Populus trichocarpa Joseph P. Tracy 1913-6-22 4261 B Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC86453  Potamogeton natans D. K. Imper 1987-5-3 Humboldt Fish Lake 915 Comment
  HSC69532  Potamogeton natans R. Kalal 1979-5-18 76 Humboldt Shallow slough E of Clam Beach County Park 24 Comment
  SEINET8577021 Image available Potamogeton pusillus S. K. Harris 1938-1 808 Humboldt Eel River,near Fernbridge Comment
  HSC46968  Potentilla anserina subsp. pacifica J. P. Smith, Thomas W. Nelson 1977-6-30 9212 Humboldt Samoa Peninsula just E of the drag strip. Comment
  UC1586954  Potentilla drummondii Juha Pykala and D. H. Norris 1987-6-11 1593 Humboldt s North Trinity Mountain (w of Crogan Hole); North Trinity Mountain Wilderness Area 1550 Comment
  RSA254751  Potentilla glandulosa subsp. ashlandica D. E. Anderson 1972-6-13 5560 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  JEPS47215  Potentilla gracilis Joseph P. Tracy 1932-7-10 10387 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC158495  Potentilla gracilis var. gracilis Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC34911  Prosartes hookeri Thomas W. Nelson, James Nelson 1975-5-24 1854 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UCD139803  Prosartes hookeri Gordon Leppig 1998-6-6 845 Humboldt Arcata, Arcata Community Forest, in frisbee gold area. 91 Comment
  CAS-BOT-BC517506  Prosartes smithii Carl B. Wolf 1937-9-10 9313 Humboldt 2 miles E of Trinidad on way to Hammond Lumber Co. Camp 20 152 Comment
  HSC15475  Prosartes smithii Francis Winter 1960-4-23 Humboldt Simpson Creek, Korbel-Maple Creek rd. 244 Comment
  CDA40758  Prunella vulgaris subsp. lanceolata M. Pryor 1948-7-29 s.n. Humboldt 1 mile east of Loleta. 0 Comment
  HSC27044  Prunella vulgaris subsp. lanceolata Brad Klipfel 1973-8-25 291 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  JEPS62494  Prunella vulgaris var. lanceolata Lincoln Constance 1934-5-24 641 Humboldt South Fork Eel River Bull Creek Region; , Bull Creek Region 121 Comment
  UC1402049  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-21 636 -7 Humboldt Comment
  UC1402064  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 628 -30 Humboldt Comment
  CAS-BOT-BC159830  Prunus avium Henry M. Pollard 1948-7-20 s.n. Humboldt Near Orleans Escape Comment
  BLMAR465  Prunus emarginata Jennifer Anthony-Wheeler 2004-11-8 465 Humboldt Titlow Hill, growing along Titlow Hill road off Hwy 299 914 Comment
  CAS-BOT-BC159979  Prunus emarginata H. E. McMinn 1922-8-5 354 Humboldt Along Van [Dusen] Duzen River Comment
  RSA46689  Prunus emarginata Doris K. Kildale 1938-6-5 15387 Humboldt Horse Mountain Comment
  UC154253  Prunus emarginata Joseph P. Tracy 1906-4-15 2402 Humboldt near Blue Lake (on Mad River); Northern Coast Ranges, Mad River 30 Comment
  RSA43864  Prunus virginiana var. demissa H. M. Pollard 1948-8-12 s.n. Humboldt Orleans Comment
  RSA46729  Prunus virginiana var. melanocarpa Doris K. Kildale 1937-8-10 15351 Humboldt High Divide Comment
Read comments
May 5 2014
  JEPS20501  Pseudognaphalium stramineum Lincoln Constance 1934-5-26 665 Humboldt s end Dyerville Bridge (sand and gravel bar of river); South Fork Eel River 45 Comment
  UC180193  Pseudognaphalium thermale Joseph P. Tracy 1914-9-6 4622 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC80117  Pseudotsuga menziesii Carl B. Wolf 1936-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew P.O. 304 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
  UC582501  Psilocarphus tenellus Joseph P. Tracy 1927-7-4 8236 Humboldt Iaqua 609 Comment
  UC582502  Psilocarphus tenellus Joseph P. Tracy 1937-6-20 15339 Humboldt 10.0 mi up stream mouth of Bear River; Bear River 152 Comment
  HSC55030  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-7-31 11466 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC55135  Pteridium aquilinum var. pubescens G. L. Clifton, Griswold 1979-8-1 11978 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  SD42991  Pteridium aquilinum var. pubescens Edith A. Purer 1932-7-30 Humboldt south of Orick Comment
  JEPS58852  Pyrola asarifolia Milo S. Baker 1923-7-20 63 Humboldt Redwood House Road Comment
  UC153970  Pyrola asarifolia J. P. Tracy 1901-6-30 1191 Humboldt Immediate Vicinity of Eureka 0 Comment
  HSC72629  Pyrola dentata J. P. Smith 1977-7-3 9254 Humboldt Six Rivers National Forest, along FS Rd. 11N17, above Blue Lake 762 Comment
  HSC41317  Pyrola picta Brad Klipfel 1974-9-2 535 Humboldt Horse Mtn. Comment
  UC1197578  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit near Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC466034  Pyrola picta Doris K. Kildale 1927-7-23 3786 Humboldt Hoaglin Lake, near Lasseck's Peaks Comment
  CAS-BOT-BC466041  Pyrola picta Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC70845  Quercus chrysolepis M. A. Baker 1980-6-7 1828 Humboldt Near Ammon Creek 732 Comment
  UC1196528  Quercus chrysolepis Joseph P. Tracy 1926-6-6 7570 Humboldt on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  RSA44460  Quercus chrysolepis var. nana H. M. Pollard 1947-9-1 s.n. Humboldt Somes Mt. near summit, Orleans region. Comment
  CAS-BOT-BC94308  Quercus garryana L. B. Kildale 1930-8-3 10335 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  HSC8258  Quercus kelloggii R. E. Thill 1965-5-15 30 Humboldt 3 mi W of Berry Summit on Hwy. 299 Comment
  HSC76362  Quercus sadleriana Teresa Prendusi 1981-7-9 197 Humboldt Near Cedar Camp. 1268 Comment
  JEPS37674  Quercus sadleriana W. L. Jepson Jul 16 1902-Jul 23 1902 2033 Humboldt just below Trinity Summit 2133 Comment
  SEINET3823284 Image available Quercus sadleriana Joseph P. Tracy 1947-8-24 17909 Humboldt Trinity Summit, Box Camp 1524 Comment
  UC1388987  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi ne Hoopa (along trail to Trinity Summit, from end of Forest Rd) 1371 Comment
  HSC98340  Quercus wislizeni Jimerson, J. Pageau 1979-6-12 540 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  JEPS93972  Ranunculus californicus Vernon Oswald 1998-4-16 8912 Humboldt n. end Trinidad State Beach (Elk Head, bluffs overlooking ocean) 30 Comment
  UC1196241  Ranunculus californicus Joseph P. Tracy 1901-4-14 1024 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  UC1196236  Ranunculus californicus Joseph P. Tracy 1912-5-5 3578 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC378853  Ranunculus californicus var. californicus Doris K. Kildale 1926-3-21 1585 Humboldt Kneeland Prairie 488 Comment
  UC668065  Ranunculus flammula Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka; vernal pool 45 Comment
  UC162341  Ranunculus muricatus Joseph P. Tracy 1911-5-17 3185 Humboldt Eureka Northern Coast Region 0 Comment
  UC1368470  Ranunculus occidentalis R. K. Gierisch and D. H. Esplin 1969-7-1 3529 Humboldt Grouse Mtn. Six Rivers National Forest Comment
  UC1542903  Ranunculus occidentalis H. E. Parks, J. P. Tracy 1930-5-25 859 Humboldt Laribee Valley 762 Comment
  UC1196217  Ranunculus occidentalis Joseph P. Tracy 1899-3-15 4 1/2 Humboldt Eureka; in garden Comment
  UC1196227  Ranunculus occidentalis Joseph P. Tracy 1921-4-24 5458 Humboldt slopes facing South Fork of Eel River; Northern Coast Ranges, Phillipsville 121 Comment
  UC1222571  Ranunculus occidentalis Joseph P. Tracy 1951-5-6 19396 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  HSC39607  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson, James Nelson 1976-7-28 3081 Humboldt W of Alder Springs. 1524 Comment
  UC1103009  Ranunculus pusillus Joseph P. Tracy 1948-6-13 18035 Humboldt halfway between Bridgeville and Blocksburg (pond on creek); Larrabee Creek 457 Comment
  HSC100902  Ranunculus repens Carl C. Marshall 167 Humboldt No data. Comment
  UCD16181  Ranunculus sardous J. DiTomaso 2000-8-12 s.n. Humboldt Arcata bottoms along Seidel Rd. Comment
  HSC81964  Ranunculus uncinatus var. parviflorus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4945 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  POM118711  Ranunculus uncinatus var. parviflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  HSC18231  Ranunculus uncinatus var. parviflorus D. E. Anderson 1961-8-11 1735 Humboldt E of Humboldt State College campus. 30 Comment
  JEPS42054  Rhamnus californica Lincoln Constance 1934-6-13 872 Humboldt just below Redwood Hwy. (e bank of South Fork Eel River, n Dyerville Flat); South Fork Eel River, Bull Creek Region, Dyerville Flat Comment
  UC61090  Rhamnus californica subsp. californica Mrs. M. H. Manning oct 1901 Humboldt near Hupa Comment
  UC1541476  Rhamnus purshiana Harold E. Parks May 1935 5541 Humboldt Spruce Cove Trinidad Comment
  UC198576  Rhamnus purshiana Joseph P. Tracy 1917-9-2 4847 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  UC199231  Rhamnus purshiana V. King Chesnut Jul 1888 Humboldt Mad River Comment
  RSA232671  Rhododendron macrophyllum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 612 Humboldt Prairie Creek, Redwoods State Park, along Davidson Rd. Comment
  OBI33909  Rhododendron occidentale David J. Keil 1983-7-2 17313 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mountain Summit rd Comment
  UC1173683  Rhododendron occidentale Joseph P. Tracy 1939-7-9 16319 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  UCR32089  Rhododendron occidentale David J. Keil 1983-7-2 17313 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  HSC35751  Rhododendron occidentale var. paludosum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1995 Humboldt French Camp, Bald Hills. Comment
  CAS-BOT-BC433139  Ribes Doris Kildale Gillespie 1931-6-7 10638 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC44274  Ribes bracteosum Barbara Kelly 1977-4-23 304 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC100491  Ribes divaricatum Carl C. Marshall Apr 1886 171 Humboldt Vicinity of Humboldt Bay. Comment
  CAS-BOT-BC108909  Ribes divaricatum var. pubiflorum Doris K. Kildale 1926-3-25 1619 Humboldt Liscom Hill. Lower Mad River. 30 Comment
  UCSB24363  Ribes divaricatum var. pubiflorum Tracy, Joseph 1939-4-27 Humboldt mouth of Little River; at edge of sand dunes 6 Comment
  BLMAR564  Ribes inerme Jennifer Wheeler 2010-3-29 564 Humboldt Headwaters Forest Reserve, along Elk River Trail within first mile, east side trail 42 Comment
  SEINET200855 Image available Ribes inerme J. P. Tracy 1939-5-6 16281 Humboldt Lack Pond Trinity River Valley opposoite mouth of Willow Creek 152 Comment
  CAS-BOT-BC169114  Ribes inerme var. inerme Brant Rogers; Arnold Tiehm 1978-6-2 944 Humboldt Badger Mt., Badger Creek near Badger Cabin on the E side of the Mt. - Sheldon National Wildlife Refuge 1828 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
  RSA0021640  Ribes malvaceum E. K. Balls, P. C. Everett 1953-10-11 18627 Humboldt S. boundary Eel River Lodge, 4.3 mi. N of Richardson s Grove, Highway 101. 152 Comment
  HSC97215  Ribes marshallii M. Mesler 2007-6-25 765 Humboldt Trail to Mill Creek Lakes 1585 Comment
  HSC20321  Ribes menziesii D. E. Anderson 1962-2-23 1924 Humboldt Grove E of HSC campus Comment
  HSC20376  Ribes menziesii Greg Bos 1965-5-2 243 Humboldt 7 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  JEPS49222  Ribes menziesii Jos. P. Tracy 1909-2-14 2941 Humboldt Eureka 0 Comment
  HSC71034  Ribes roezlii Thomas W. Nelson 1977-4-20 3326 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  UC1222374  Ribes roezlii Joseph P. Tracy 1950-8-4 19255 Humboldt at head Canoe Creek; Bull Creek State Park, Grasshopper Peak Comment
  UC667069  Ribes roezlii Joseph P. Tracy 1933-3-5 10916 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  HSC100094  Ribes roezlii var. roezlii J. P. Smith, J. O. Sawyer 2010-3-22 12711 Humboldt Along Hwy. 36, E of Dinsmore. 780 Comment
  RSA0019527  Ribes sanguineum John H. Thomas 1949-6-13 914 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. East of town of Orleans. 1372 Comment
  CAS-BOT-BC144685  Ribes sanguineum var. glutinosum Elmer I. Applegate 1923-9-12 3991 Humboldt Stone Lagoon, south of Orick Comment
  CAS-BOT-BC144689  Ribes sanguineum var. glutinosum C. Epling; Wm. Robison 1935-7-22 s.n. Humboldt Patrick's Point Comment
  CAS-BOT-BC144697  Ribes sanguineum var. glutinosum Doris K. Kildale 1928-7-29 5926 Humboldt Bear River at Capetown 15 Comment
  HSC103217  Ribes sanguineum var. glutinosum Jade Paget-Seekins 2010-3-14 3 Humboldt McKinleyville, west end of Hiller Park. 10 Comment
  HSC40407  Ribes sanguineum var. glutinosum Linda M. Barker 1976-1-24 1311 Humboldt 3 mi. W of Arcata Comment
  HSC49079  Ribes sanguineum var. sanguineum J. O. Sawyer 1977-4-23 2841 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  RSA0020899  Ribes viscosissimum John H. Thomas 1949-6-13 913 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. East of town of Orleans. 1372 Comment
  UC1222365  Romanzoffia californica Joseph P. Tracy 1950-6-15 18818 Humboldt at Huestis Rock on n.e. side Mail Ridge Comment
  CAS-BOT-BC222678  Romanzoffia tracyi Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-18 2619 Humboldt North of Trinidad 30 Comment
  JEPS53849  Rorippa curvisiliqua Joseph P. Tracy 1916-5-31 4693 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  UC902154  Rosa Joseph P. Tracy 1949-8-7 18438 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC35752  Rosa californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1996 Humboldt French Camp, Bald Hills. Comment
  CAS-BOT-BC146481  Rosa gymnocarpa Alice Eastwood; John Thomas Howell 1937-6-22 4715 Humboldt Near Harris Comment
  HSC39397  Rosa gymnocarpa D. E. Anderson, J. P. Smith 1971-6-28 1251 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC98101  Rosa nutkana Cara Witte 2007-6-21 329 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  UC303026  Rosa nutkana var. nutkana Joseph P. Tracy 1923-6-22 6345 Humboldt Angels Ranch Bald Mt.; Northern Coast Ranges, Bald Mt. 457 Comment
  UC527438  Rosa nutkana var. nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mi from Rohnerville (on road to Fortuna) 30 Comment
  UC667043  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-21 14994 Humboldt Iaqua 609 Comment
  HSC60308  Rubus armeniacus J. P. Smith, Steve Selva 1970-6-14 3850 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UCD113775  Rubus armeniacus K. Twitchell 1996-5-11 27 Humboldt Crannell, along old Highway 101 at Moonstone Beach access. 36 Comment
  HSC71715  Rubus leucodermis M. A. Baker 1980-6-26 2436 Humboldt Near Sims Creek 610 Comment
  HSC101456  Rubus leucodermis var. leucodermis Cara M. Witte 2008-8-6 997 Humboldt Board Camp Mountain. Approx. 1 mile south of intersection of 4N38 and National Forest 1 1416 Comment
  CAS-BOT-BC147246  Rubus parviflorus Doris K. Kildale 1928-6-15 5231 Humboldt Iaqua Comment
  HSC19661  Rubus parviflorus D. A. Shally 1965-5-15 53 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC19669  Rubus parviflorus Francis Winter 1960-4-24 Humboldt 2 mi. S of Hoopa Indian Reservation along Hoopa-Willow Creek Hwy. 152 Comment
  HSC73171  Rubus parviflorus M. A. Baker 1980-5-18 1346 Humboldt Near Black Mtn. 792 Comment
  HSC99433  Rubus parviflorus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 82 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SD33957  Rubus parviflorus var. velutinus Doris K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  HSC19683  Rubus spectabilis D. E. Anderson 1962-3-31 1961 Humboldt Old Hwy. 101, E side of Freshwater Lagoon Comment
  HSC96356  Rubus spectabilis Gordon Leppig 1998-3-25 729 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC156728  Rubus spectabilis Duart V. Brown 1947-3-27 18 Humboldt Tectah Creek, Klamath River Comment
  CAS-BOT-BC158789  Rubus ursinus C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC63031  Rubus ursinus J. P. Smith, J. O. Sawyer 1973-5-12 6704 Humboldt 10.4 mi. from Redwood Creek on Hoopa Rd. Comment
  UCD17616  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 048 Humboldt California. Humboldt County: 12.2 miles north of Ettersburg on road to Honeydew. Comment
  UCD17847  Rubus ursinus H. Olmo 8-10 May 1962 62- 34 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  HSC55178  Rumex acetosella Gilbert Muth 1979-8-1 12186 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC98533  Rumex acetosella Cara Witte 2008-8-6 1015 Humboldt Board Camp Mountain. 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  UC672923  Rumex maritimus Joseph P. Tracy 1940-10-5 16741 Humboldt Mouth of Little River 6 Comment
  SDSU9723  Rumex obtusifolius subsp. agrestis D. F. Howe 1959-8-4 2804 Humboldt 86 miles W of Weaverville on #299. 152 Comment
  CAS-BOT-BC103455  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt in McKay Meadow, Trinity Summit 1524 Comment
  UC1196669  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14266 Humboldt meadows at Water Dog Lake; Trinity Summit 1828 Comment
  CAS-BOT-BC103811  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01245 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  SBBG58914  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt mouth of Willow Crk at Trinity River Comment
  CAS-BOT-BC104107  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01336 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107734  Salix hookeriana Harold E. Parks; Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad Comment
  CAS-BOT-BC107741  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Sand dunes, near Samoa 6 Comment
  CAS-BOT-BC107758  Salix hookeriana Harold E. Parks 1931-8-1 01053 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107766  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1210 b Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad Comment
  CHSC9556  Salix hookeriana E. L. Smith 1971-4-6 926 Humboldt Manila, 4 mi sw of Arcata, on w side of Humboldt Bay opposite Eureka. Comment
  HSC19956  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-5 1103 Humboldt Little River Lagoon Comment
  HSC33076  Salix hookeriana Thomas W. Nelson, Jim Ackerman 1974-5-14 1265 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  HSC90382  Salix hookeriana Jean Hanson 1980-3-8 1 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90466  Salix hookeriana Jean Hanson 1980-3-8 31 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS12927  Salix hookeriana Joseph P. Tracy 1931-5-3 9356 Humboldt near Luffenholz Creek (near ocean); Northern Coast Region, Trinidad 60 Comment
  LA208758  Salix hookeriana Harold E. Parks; August 1931 1053 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM184870  Salix hookeriana H. E. Parks, Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon. Trinidad. At sea level. 0 Comment
  RSA152331  Salix hookeriana Joseph P. Tracy 1948-4-4 17958 Humboldt Near Samoa on Humboldt Bay. 6 Comment
  UC1173586  Salix hookeriana Joseph P. Tracy 1936-8-17 15159 Humboldt Mad R. at mouth of Lindsey Creek; Mad R., Lindsey Creek 15 Comment
  UC1196676  Salix hookeriana Joseph P. Tracy 1931-3-26 9304 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC470423  Salix hookeriana Joseph P. Tracy 1931-9-19 9680 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC481336  Salix hookeriana Harold E. Parks August, 1931 1057 Humboldt Bishop Pine Lodge Trinidad 150 Comment
  UC511975  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1250 Humboldt 2 mi e of Redwood Hwy. Engelhart gravel pit (above Blue Lake Rd.); Mad River Comment
  UCD111017  Salix hookeriana Harold E. Parks 1931-5-28 0999 Humboldt Little River Lagoon. Comment
  UCD111036  Salix hookeriana Linda M. Barker 1976-4-13 1382 Humboldt 3 miles west of Arcata. Comment
  UC481815  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 270 Humboldt between Miranda and Meyers (S. Fork Eel R., Sylvandale Station); S. Fork Eel R., Sylvandale Comment
  CAS-BOT-BC128196  Salix lasiandra var. lasiandra Doris K. Kildale 1926-3-7 1528 Humboldt Stephen's Grove, river bar - South Fork of Eel River 60 Comment
  CAS-BOT-BC107589  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1318 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107597  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11007 Humboldt On Van Duzen River, two miles west of Bridgeville 228 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
  HSC98013  Salix lasiolepis Cara Witte 2007-7-20 566 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  HSC99119  Salix lasiolepis Cara Witte 2008-6-13 726 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  JEPS12917  Salix lasiolepis Joseph P. Tracy 1927-8-7 8305 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  UC1196660  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-17 9414 Humboldt thicket near mouth of Willow Creek; Northern Coast Ranges, Willow Creek 152 Comment
  UC176177  Salix lasiolepis Joseph P. Tracy 1912-7-26 3840 Humboldt Kneeland Prairie, Lawrence Creek Northern Coast Ranges, Kneeland Prairie, Lawrence Creek 762 Comment
  UC469418  Salix lasiolepis Joseph P. Tracy 1927-8-7 8306 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469428  Salix lasiolepis Joseph P. Tracy 1931-9-7 9629 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC490544  Salix lasiolepis Joseph P. Tracy 1932-5-10 9958 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC490584  Salix lasiolepis Joseph P. Tracy 1932-6-4 10128 Humboldt Bridgeville 228 Comment
  UC506386  Salix lasiolepis Joseph P. Tracy 1932-6-19 10248 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  UC506508  Salix lasiolepis Joseph P. Tracy 1932-6-4 10130 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC512113  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1203 Humboldt 4 1/2 mi. s. Trinidad (Little R. Lagoon); Little R. Lagoon Comment
  CAS-BOT-BC107411  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-3-20 2907 Humboldt Stephens Grove on South Fork of Eel River 60 Comment
  RSA10910  Salix lasiolepis var. sandbergii Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1324 Humboldt Berry's Mountain. E of Redwood Creek. On Trinity Hwy. 762 Comment
  UC279091  Salix lemmonii J. P. Tracy Humboldt Comment
  POM219560  Salix lucida subsp. lasiandra H. E. Parks 1931-3-24 911 Humboldt Fortuna. Eel River. 10 Comment
  CAS-BOT-BC125615  Salix melanopsis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 01252 Humboldt On floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  HSC20060  Salix melanopsis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1237 Humboldt Van Duzen River at Blue Slide 91 Comment
  JEPS12936  Salix melanopsis Joseph P. Tracy 1931-5-3 9344 Humboldt Mad River near Blue Lake; Northern Coast Region 15 Comment
  JEPS14761  Salix melanopsis Joseph P. Tracy 1932-7-31 10291 Humboldt Eel River at mouth of Larrabee Creek; Northern Coast Ranges 60 Comment
  SD920  Salix melanopsis Harold E. Parks 1931-5-14 956 a Humboldt Van Duzen River above Bridgeville, river bed 299 Comment
  UC1196573  Salix melanopsis Joseph P. Tracy 1931-10-3 9703 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC469461  Salix melanopsis Joseph P. Tracy 1931-10-3 9704 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC469462  Salix melanopsis Joseph P. Tracy 1931-5-3 9345 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC481168  Salix melanopsis Harold E. Parks 1931-8-25 1060 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC481267  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Little River Lagoon Comment
  UC481288 Image available Salix melanopsis Harold E. Parks 1931-5-14 962 Humboldt between Alton and Carlotta; Van Duzen River; Van Duzen River, Humboldt Co. 15 Comment
  UC481384  Salix melanopsis Harold E. Parks 1931-3-26 909 Humboldt on Van Duzen R. Alton; Van Duzen R. 15 Comment
  UC481825  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC512009  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1234 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UC519374  Salix melanopsis Joseph P. Tracy 1933-6-9 12532 Humboldt along Eel R. Shively; Northern Coast Ranges, , Eel R. 30 Comment
  CAS-BOT-BC129209  Salix piperi Doris K. Kildale 1929-2-28 6950 Humboldt Essex - Mad River Comment
  CAS-BOT-BC129248  Salix piperi Joseph P. Tracy 1937-8-12 15658 Humboldt Snow Camp, most gourn in and around meadow. 1402 Comment
  CAS-BOT-BC129127  Salix scouleriana A. T. Whittemore 1979-4-5 79 -012 Humboldt Arcata, cleared field along Alliance Road immediately north of Arcata High School 6 Comment
  CAS-BOT-BC129172  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  HSC20084  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Laribee Ridge, Van Duzen River Comment
  JEPS89298  Salix scouleriana Joseph P. Tracy 1937-3-21 15236 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  SBBG28832  Salix scouleriana H. E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay Comment
  UC1196705  Salix scouleriana Joseph P. Tracy 1933-3-26 10945 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC490536  Salix scouleriana Joseph P. Tracy 1932-7-13 10518 Humboldt open groung at Corral Prairie (back from the meadows); Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC512088  Salix scouleriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1219 Humboldt pine barrens near coast 1 mi. n. Samoa Comment
  CAS-BOT-BC128957  Salix sitchensis W. R. Dudley 1899-6-21 s.n. Humboldt Bluff below Dyerville on Eel River Comment
  CAS-BOT-BC128998  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  HSC90381  Salix sitchensis Jean Hanson 1980-3-8 11 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96575  Salix sitchensis Gordon Leppig 2003-2-20 1805 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  UC1173577  Salix sitchensis Joseph P. Tracy 1936-6-27 15007 Humboldt along S. Fork Eel R. Miranda; S. Fork Eel R. 91 Comment
  UC144108  Salix sitchensis Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC146204  Salix sitchensis Joseph P. Tracy 1904-3-6 2001 Humboldt immediate vicinity of Eureka 0 Comment
  UC212996  Salix sitchensis Joseph P. Tracy 1919-9-25 5300 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC469469  Salix sitchensis Joseph P. Tracy 1931-10-3 9708 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC512013  Salix sitchensis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1230 Humboldt 1 1/2 mi. e. Alton (on ... floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UCD111910  Salix sitchensis Harold E. Parks 1931-3-25 0903 Humboldt Orick, Van Duzen River. 6 Comment
  HSC58321  Sambucus nigra subsp. caerulea Overton, Butler 1979-8-2 12616 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC235119  Sambucus racemosa var. racemosa L. R. Abrams; R. Bacigalupi 1922-6-25 8281 Humboldt Big Lagoon south of Orick Comment
  CAS-BOT-BC223251  Sanicula bipinnatifida Joseph P. Tracy 1938-7-4 15985 Humboldt Vicinity of South Yager Creek 762 Comment
  HSC39448  Sanicula crassicaulis Linda M. Barker 1976-8-2 1669 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC90000  Sanicula crassicaulis Leonel Arguello 1989-6-10 Humboldt Lanphere- Christensen Dunes Preserve, 3 mi. W of Arcata. Beside the N fork of the Hunt trail. Comment
  RSA167239  Sanicula tracyi Joseph P. Tracy 1950-7-6 19022 Humboldt Sproston s Place, 3 miles south of Burr Valley 1067 Comment
  UC647525  Sanicula tracyi Joseph P. Tracy 1939-5-14 16284 Humboldt Buck Mountain 914 Comment
  HSC55291  Sanicula tuberosa Terry Griswold, Butler 1979-7-10 6264 Humboldt Near Board Camp Mountain 1372 Comment
  SEINET13945259 Image available Sanicula tuberosa Thomas Nelson 1978-1 4095 Humboldt T2N, R5E, Sec 33, elev 2500 ft. Oak woodland on McKeown Ranch north of Dinsmore 762 Comment
  HSC31438  Sarcodes sanguinea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5556 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  UCD13239  Saxifraga mertensiana Collector unknown 1976-4-10 106 Humboldt California: Humboldt Co. Junction of stae Highway 36 with Alderpoint Rd. Elev. 1800 ft. 548 Comment
  CAS-BOT-BC441184  Saxifraga mertensiana Doris K. Kildale 1927-3-20 2930 Humboldt Philipsville. South fork of Eel River Comment
  POM160902  Scirpus congdonii Joseph P. Tracy 1924-7-4 6707 Humboldt Snow Camp. 1372 Comment
  UC184186  Scirpus microcarpus Joseph P. Tracy 1914-9-13 4628 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  HSC15633  Scoliopus bigelovii D. E. Anderson 1963-3-23 2397 Humboldt Bald Mtn. Rd. Comment
  SEINET12050518  Scoliopus bigelovii F. H. Utech 1988-1 88 -024 Humboldt 1.5 mi WNW of Weott on Ave of the Giants (alt US 101), W.D. & W.H. Clark Redwood Grove 40 Comment
  SEINET12058059  Scoliopus bigelovii F. H. Utech 1988-3-4 88 -026 Humboldt 12.7 mi E on CA 36 from jct US 101 & Van Duzen River, Grizzly Creek Redwoods, O.R. Cheatam Grove 90 Comment
  HSC77906  Scrophularia californica L. P. Janeway, Paul Wilson 1984-5-7 759 Humboldt On the N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  CHSC85574  Scutellaria antirrhinoides L. P. Janeway 2003-7-30 7940 Humboldt High North Coast Ranges. Cold Spring; 0.6 km north of the top of Titlow Hill. 1454 Comment
  HSC56430  Scutellaria antirrhinoides Griswold, Butler 1979-7-10 7138 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC97100  Scutellaria antirrhinoides Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1364 Comment
  HSC98088  Scutellaria antirrhinoides Cara Witte 2007-7-11 481 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  UC175777  Scutellaria antirrhinoides Joseph P. Tracy 1912-6-9 3670 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  HSC40873  Scutellaria californica Thomas W. Nelson 1976-7-9 3010 Humboldt S of Mt. Lassic (Signal Peak) 1707 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
  RSA445331  Scutellaria siphocampyloides Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  HSC100456  Sedum Carl C. Marshall Jun 1885 100 Humboldt Pine Creek Ridge. Comment
  HSC58160  Sedum divergens G. L. Clifton, Griswold 1979-8-2 12221 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  CAS-BOT-BC63880  Sedum laxum subsp. heckneri Doris K. Kildale 1926-6-9 2176 Humboldt Horse Mountain. 1399 Comment
  UC1198839  Sedum laxum subsp. heckneri Joseph P. Tracy 1933-8-30 13015 Humboldt Grouse Mountain Grouse Mountain (on rock ledge) 1371 Comment
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Aug 17 2011
  HSC58165  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-8-2 12231 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC65873  Sedum radiatum Gail Newton 1980-7-11 1310 Humboldt Near Red Mtn. 1341 Comment
  UC1225752  Sedum radiatum Joseph P. Tracy 1948-5-31 18000 Humboldt Harris Harris (on rock ledge in shade) 762 Comment
  CAS-BOT-BC63825  Sedum spathulifolium Doris K. Kildale 1927-5-15 3171 Humboldt Petralia. Mattole River. Comment
  HSC6475  Sedum spathulifolium var. spathulifolium Lincoln Constance 1934-6-1 767 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  CAS-BOT-BC69737  Selaginella wallacei Joseph P. Tracy 1932-3-20 9783 Humboldt Trinidad. 60 Comment
  HSC26637  Senecio integerrimus Thomas W. Nelson 1971-5-31 458 Humboldt 915 Comment
  UC128743  Senecio integerrimus var. major Harley P. Chandler 1086 Humboldt Harris North Coast Ranges 304 Comment
  HSC97105  Senecio integerrimus var. major Yun Chan, Renee Meyer, Sophary Yun 2007-6-4 3 Humboldt 7.4 mi. S of Hwy. 299 on NF1, Coldspring Camp 1372 Comment
  HSC32530  Senecio jacobaea Thomas W. Nelson 1973-9-3 1132 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC27280  Senecio jacobaea H. Hilton 1973-9-20 Humboldt Near the Orick Dump Comment
  CDA7642  Senecio mikanioides Gordon Leppig 2000-2-15 1284 Humboldt School Road 1/2 mile west of Central Avenue, McKinleyville. Comment
  UC1199491  Senecio minimus Joseph P. Tracy 1936-8-23 15161 Humboldt Carlotta Northern Coast Ranges Comment
  UCD135609  Senecio minimus John M. Tucker 1948-9-4 1863 Humboldt Beck's Ranch, Hydesville. Comment
  HSC56435  Senecio triangularis Griswold, Butler 1979-7-12 7150 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC57356  Senecio triangularis Overton, Butler 1979-7-26 10051 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC1199234  Senecio triangularis Joseph P. Tracy 1933-7-25 12846 A Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UCD135823  Senecio vulgaris H. E. Parks; S. T. Parks. 1943-6-1 24234 Humboldt Spruce Cove, Trinidad. 60 Comment
  HSC6129  Senecio vulgaris J. W. Johnson 1962-4-8 1215 Humboldt Arcata, Mad River Co. Park Comment
  HSC85743  Sequoia sempervirens R. W. Becking 1985-1-17 Humboldt HSU Campus, Hse. 87 Comment
  RSA730333  Sequoia sempervirens R. R. Halse 1989-5-13 3842 Humboldt Along Highway 101, 2 miles south of Weott 108 Comment
  UC275473  Sequoia sempervirens Joseph P. Tracy 1925-3-15 6945 Humboldt Blue Slide on Van Duzen River; Northern Coast Region 30 Comment
  SEINET5334848  Sequoia sempervirens P. A. Lehenbauer 1857 Humboldt near Eureka Comment
  HSC104122  Sericocarpus oregonensis Julie Kierstead Nelson, Len Lindstrand III 2010-9-20 2010035 Humboldt Comment
  UC212874  Setaria pumila Joseph P. Tracy 1919-9-13 5193 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UCD92848  Setaria viridis Don Hager 1957-9-25 s.n. Humboldt Titlow Hill, 20 miles southwest of Willow Creek. Comment
  UC18692  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  HSC73172  Sidalcea malviflora M. A. Baker 1980-5-18 1350 Humboldt Near Black Mtn. 792 Comment
  UC668144  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1936-8-2 15062 Humboldt French Camp Ridge 1066 Comment
  UC176967  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3597 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC176988  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3595 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  HSC102530  Sidalcea oregana subsp. oregana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1517 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC74227  Sidalcea oregana subsp. spicata M. A. Baker 1980-7-22 3089 Humboldt Near Grogan Hole. 1676 Comment
  CDA18218  Silene californica G. D. Barbe, T. C. Fuller 1974-6-17 1846 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  POM192570  Silene californica H. E. Parks 1930-05 0751 Humboldt Vicinity of Hydesville. Comment
  UC465675  Silene californica P. E. Goddard 1907-5-29 f 101 Humboldt Van Duzen Comment
  HSC57950  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-7-31 11629 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC384424  Silene coronaria Philip A. Munz 1952-6-27 17799 Humboldt Boise Creek Public Camp west of Willow Creek 365 Comment
  HSC68009  Silene gallica J. P. Smith 1970-6-7 3804 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC100709  Silene hookeri Carl C. Marshall Jun 1886 10 Humboldt S Fork Mtn. near summit. Comment
  SEINET11944375  Silene hookeri J. P. Tracy 1950-1 18880 Humboldt Burr Valley Road, on NW slope of Buck Mountain Comment
  CAS-BOT-BC389052  Silene laciniata subsp. californica D. E. Breedlove 1961-7-4 652 Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  CAS-BOT-BC389061  Silene laciniata subsp. californica Lincoln Constance; Alan A. Beetle 1940-5-16 2610 Humboldt Coastal bluffs above Alton Comment
  HSC4163  Silene laciniata subsp. californica Francis Winter 1960-5-7 Humboldt 2 mi. E of Pine Ridge Summit along hwy. 610 Comment
  JEPS53878  Sisymbrium officinale Lincoln Constance 1934-5-31 755 Humboldt along Bull Creek, from w boundary of park to Grasshopper Peak (Squaw Creek) Road, n side of Bull Creek, South Fork Eel River Bull Creek; Bull Creek Region, South Fork Eel River Comment
  SD88388  Sisyrinchium californicum Darley F. Howe 1972-6-30 Humboldt Trinidad. Comment
  UC1103495  Smilacina racemosa Joseph P. Tracy 1941-4-26 16863 Humboldt Kneeland Prairie 762 Comment
  UC275555  Smilacina racemosa Joseph P. Tracy 1924-8-10 6798 Humboldt Stongs Station Northern Coast Ranges, Van Duzen River 91 Comment
  UCR45836  Smilacina stellata Barry Silver 1986-4-23 537 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC21316  Solanum triflorum D. E. Anderson 1962-11-7 2342 Humboldt Near Trinity Hospital Comment
  CAS-BOT-BC154216  Solanum umbelliferum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1219 Comment
  SEINET11801714  Solidago canadensis var. salebrosa J. P. Tracy 1948-1 18210 Humboldt Trinity Summit, meadow at Box Camp 1463 Comment
  CAS-BOT-BC365431  Solidago elongata Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC365444  Solidago elongata L. R. Abrams 1927-9-1 12064 Humboldt Stone Lagoon Comment
  HSC6183  Solidago elongata William J. Ferlatte, B. D. Rogers 1966-8-15 3131 Humboldt North Bank Rd., 2 mi. N of Arcata Comment
  UC604624  Solidago elongata Joseph P. Tracy 1938-8-7 16103 Humboldt 5 mi n Garberville; South Fork of Eel River at mouth of Dean Creek 121 Comment
  CAS-BOT-BC365667  Solidago spathulata A. A. Heller 1924-7-22 13872 Humboldt At Samoa opposite Eureka Comment
  LA204224  Solidago spathulata S. K. Harris; 1939-9-5 990 Humboldt Samoa Comment
  RSA286358  Solidago spathulata R. F. Thorne 1974-7-29 45070 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  SEINET5506402 Image available Solidago spathulata S. K. Harris 1939-1 s.n. Humboldt Samoa Comment
  CAS-BOT-BC235369  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt Humboldt Bay, Arcata; foot of I Street Comment
  HSC12566  Spergula arvensis D. La Conte 1970-8-10 3 Humboldt Comment
  HSC4238  Spergula arvensis H. E. Parks May 1932 Humboldt Vicinity of Trinidad Comment
  HSC79184  Spergula arvensis L. P. Janeway 1984-2-6 711 Humboldt .25 mi. up Hidden Creek Rd. from LK Wood Blvd. 46 Comment
  RSA187158  Spergula arvensis John H. Thomas 1966-3-19 11488 Humboldt Southern end of Big Lagoon, just inland from the coast between Eureka and Crescent City. 0 Comment
  SJSU8458  Spergularia canadensis var. occidentalis H. T. Harvey 1977-7-6 614 Humboldt South Spit, Humboldt Bay Comment
  HSC95251  Spergularia macrotheca var. macrotheca Andrea Pickart 2002-6-27 125 Humboldt Mad River Slough and Dunes, N of parking lot area at N end of access road. 0 Comment
  HSC68109  Spergularia rubra J. P. Smith, J. O. Sawyer 1973-5-12 6670 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  UC666995  Spiranthes romanzoffiana Joseph P. Tracy 1937-8-12 15640 Humboldt Snow Camp 1402 Comment
  HSC98653  Spiranthes romanzoffiana Cara Witte 2007-7-26 594 Humboldt Board Camp Mountain. Intersection of Forest Service Road 4N38 and National Forest 1. 1395 Comment
  UC1196404  Spiranthes romanzoffiana Joseph P. Tracy 1936-8-2 15066 Humboldt French Camp Ridge; by spring 1066 Comment
  HSC100607  Spraguea umbellata Carl C. Marshall Jun 1885 26 Humboldt S Fork Mtn. Comment
  PASA1130  Stachys ajugoides Frank W. Peirson 1932-7-7 Humboldt Near Willow Creek Comment
  UC577329  Stachys ajugoides var. ajugoides W. E. Peacock 1936-8-1 Humboldt Arcata Bottom Arcata 9 Comment
  UC577322  Stachys ajugoides var. rigida Joseph P. Tracy 1933-6-24 12611 Humboldt Big Lagoon 3 Comment
  UC577319  Stachys ajugoides var. rigida Joseph P. Tracy 1930-7-23 9126 Humboldt Cold Springs Northern Coast Ranges, Horse Mountain 1432 Comment
  UCLA71138  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
  UC32580  Stachys chamissonis Chesnut and Drew 1888-8-10 Humboldt N. Fork Mill Comment
  UCLA54082  Stachys chamissonis H. Lewis 1940-7-3 Humboldt Little River Beach State Park Comment
  RSA447391  Stachys emersonii Christopher Davidson 1973-5-29 2201 Humboldt Ca. 2 mi S of Carlotta on St. Hwy 36 61 Comment
  HSC14414  Stachys rigida Norman H. Moe 1962-5-19 Humboldt Lanphere's Place, SW corner of pasture Comment
  HSC14424  Stachys rigida D. E. Anderson 1963-5-25 2482 Humboldt 2-3 mi. N of Capetown Comment
  HSC49394  Stachys rigida R. York 1979-5-15 288 Humboldt Trail leading to College Cove 1 mi. N of Trinidad Comment
  RSA20845  Stachys rigida subsp. quercetorum Carl B. Wolf 1937-6-18 8885 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  UCR84759  Stachys rigida var. quercetorum Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  HSC54885  Stachys rigida var. rigida G. L. Clifton, Griswold 1979-7-25 10894 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC38476  Stachys rigida var. rigida Lon Hall 1975-6-20 392 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  UC162363  Stellaria crispa Joseph P. Tracy 1900-8-5 914 Humboldt Eureka; Northern Coast Region 0 Comment
  SEINET6905902  Stellaria nitens Joseph P. Tracy 1913-5-4 4045 Humboldt Kneeland Prairie, altitude 2500 feet. Comment
  SEINET5585763  Stipa occidentalis Percy Train 1937-1 515 Humboldt Canyon Creek summit, east slope Santa Rosa Range 2195 Comment
  CAS-BOT-BC87608  Streptanthus tortuosus Doris K. Kildale 1928-5-27 5955 Humboldt Kneeland Prairie. 853 Comment
  HSC100891  Streptopus amplexifolius Carl C. Marshall May 1886 191 Humboldt Jacoby Cr. Comment
  UC1103498  Streptopus amplexifolius var. americanus Joseph P. Tracy 1936-8-7 15094 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC34130  Swertia radiata J. O. Sawyer 1970-6-24 2285 Humboldt Near Waterdog Lakes 1860 Comment
  UC562306  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC63139  Swertia radiata M. A. Baker 1979-6-27 935 Humboldt Head of Oregon Creek Comment
  CAS-BOT-BC269577  Symphoricarpos albus var. laevigatus H. E. McMinn 1922-8-5 349 Humboldt Along Van Duzen River Comment
  BLMAR272  Symphoricarpos mollis Jennifer Anthony-Wheeler 1999-7-30 272 Humboldt Lacks Creek, growing along ridgees, slopes, open places 1219 Comment
  CHSC68779  Symphyotrichum chilense Vernon H. Oswald 1997-6-5 8539 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. 6 Comment
  HSC95386  Symphyotrichum chilense Andrea Pickart 2002-7-9 174 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  UC1199308  Symphyotrichum hendersonii Joseph P. Tracy 1935-7-27 14277 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC673095  Symphyotrichum subspicatum Joseph P. Tracy 1940-9-26 16728 Humboldt Eureka 9 Comment
  UC153938  Symphyotrichum subspicatum Joseph P. Tracy 1910-10-8 3170 Humboldt Brainard's Point Northern Coast Ranges, Humboldt Bay 0 Comment
  JEPS32727  Symphytum asperum Kate Jared Stirring 1923-6-5 Humboldt Arcata Comment
  SEINET11071783 Image available Symphytum asperum Johnnie L. Gentry Jr., Earl Jensen 1968-1 2120 Humboldt Approx. 2 miles east of Hwy. jct. US 101 & Tompkins Hill Rd., on Tompkins Hill Road, south of Eureka 30 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
  HSC91945  Synthyris reniformis E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, Big Meadow, next to copse Comment
  JEPS26262  Synthyris reniformis Joseph P. Tracy 1939-3-19 16205 Humboldt by old Strong's District School House, 5 mi e of town Carlotta 45 Comment
  JEPS9922  Synthyris reniformis Charlotte Wilder 1922-3-2 Humboldt roadbanks near Beckwith's Mill; North Coast, Carlotta Comment
  POM128331  Synthyris reniformis Jos. Burtt Davy, Walter C. Blasdale 1899-6-18 5617 Humboldt Bald Mtn, Northeast of Korbel. Comment
  UCD124639  Synthyris reniformis D. C. Hagar 1957-4-4 145 Humboldt Happy Camp Mountain, ca. 5.5 miles northwest of Salyer. 1219 Comment
  HSC6246  Tanacetum bipinnatum S. J. Moore 1965-4-10 5 Humboldt Dry Lagoon State Park Comment
  CAS-BOT-BC376833  Tanacetum vulgare Carl B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, So. side along Redwood Highway 6 Comment
  CAS-BOT-BC376895  Taraxacum officinale Doris K. Kildale 1926-5-24 1683 Humboldt Ryan Slough near Occidental Ranch Comment
  HSC6260  Taraxacum officinale J. L. Baker 1965-3-11 10 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  UC13714  Taxus brevifolia Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  HSC56124  Tellima grandiflora G. L. Clifton, Griswold 1979-8-1 11912 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC160922  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1908-6 2769 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC667955  Thelypteris nevadensis Joseph P. Tracy 1937-7-25 15556 Humboldt ne of Hawkins Bar (Happy Camp Mt.); Trinity Summit Range 1280 Comment
  UC1129924  Thermopsis macrophylla var. macrophylla A. E. Wieslander 1931-5-19 7 Humboldt near Orleans; Klamath National Forest, Hoopa Quadrangle Comment
  UC1778592  Thermopsis robusta G. F. Hrusa 1998-7-5 14700 Humboldt Siskiyou Mountains; Cedar Camp Rd. +/- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. Mile 8.8 Comment
  UC1565796  Thlaspi montanum var. montanum R. Spellenberg 1990-7-10 10234 Humboldt on USFS Rd 6N08, 7.5 air mi sw Salyer (on Friday Ridge 0.4 mi ne of junction with USFS Rd. 1, extreme e edge county); on Friday Ridge 1371 Comment
  UC673195  Thlaspi montanum var. montanum Lincoln Constance and Reed C. Rollins 1942-5-11 2877 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  CAS-BOT-BC81305  Thuja plicata P. C. Everett; E. K. Balls 1959-10-25 23970 Humboldt 6.9 mi. SW. from Ferndale on Old Coast Road to Capetown 563 Comment
  CAS-BOT-BC81320  Thuja plicata Ira L. Wiggins 1955-7-31 13594 Humboldt Hillside 9 mi. E of Arcata along Highway 299 316 Comment
  POM212074  Thuja plicata C. B. Wolf 1930-10-25 1764 Humboldt 9 miles above Blue Lake road to Willow Creek (Lord Ellis Road) 244 Comment
  RSA46501  Thuja plicata Doris K. Kildale 1927-3-22 2935 Humboldt N Fork of Elk River, Humboldt County Comment
  JEPS54121  Thysanocarpus curvipes W. L. Jepson 1934-5-7 16702 Humboldt Bull Creek; Buckeye Prairie, Bull Creek Comment
  HSC97995  Tiarella trifoliata var. unifoliata Cara Witte 2007-7-11 492 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  HSC98805  Tiarella trifoliata var. unifoliata Cara Witte 2008-8-5 994 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  UC1409074  Tiarella trifoliata var. unifoliata Robert F. Thorne and P. Everett 1965-8-5 35140 Humboldt below summit Mt. Chamisal Mt. Chamisal; , below summit 533 Comment
  UC183590  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1912-7-25 3813 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1173638  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1930-7-17 8993 Humboldt McKay Camp South Fork Mountain Comment
  UC1222357  Tolmiea diplomenziesii Joseph P. Tracy 1950-6-8 18726 Humboldt Bear River Ridge 609 Comment
  UC14482  Tolmiea diplomenziesii Chesnut and Drew 1888-7-9 Humboldt near Arcata Comment
  HSC59080  Tolmiea diplomenziesii Thomas Wood 1979-5-15 194 Humboldt E of Arcata at Essex Park, .5 mi. E of W End Rd. 21 Comment
  CAS-BOT-BC447609  Tolmiea menziesii Volney Rattan 1883-6-1 s.n. Humboldt Humboldt County Comment
  UC169095  Tonella tenella Mrs. M. H. Manning Apr 1902 Humboldt Hupa Comment
  HSC38892  Torilis arvensis J. P. Smith, Steve Selva 1970-6-14 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UCD93212  Torreyochloa pallida var. pauciflora A. H. Murphy 1951-6-25 69 Humboldt Snow Camp Meadows, ca. 8 miles E. NE of Kneeland. Comment
  CAS-BOT-BC399988  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  HSC56957  Triantha occidentalis subsp. occidentalis Overton, Butler 1979-7-23 9470 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  RSA1500  Trichostema laxum E. R. Johnson 1929-08 1435 Humboldt Along the Eel River. Comment
  HSC53982  Trichostema oblongum Griswold, Butler 1979-7-11 7057 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC100081  Trientalis latifolia Jimerson, J. Pageau 1979-6-22 607 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  RSA239714  Trientalis latifolia Larry E. DeBuhr 1973-4-23 985 Humboldt Richardson Grove Redwood State Park. Comment
  UCD117587  Trientalis latifolia D. Sanchez-Mata; S. Rivas-Martinez, M. Costa, and M. Ladero 1998-6-10 s.n. Humboldt Trinidad-Patricks Point. 25 Comment
  UC495670  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-1 9894 A Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  UC1197186  Trifolium bifidum var. bifidum Joseph P. Tracy 1925-6-7 7080 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1223501  Trifolium bifidum var. decipiens Joseph P. Tracy 1950-6-8 18744 Humboldt 1 mi e Cape Mendocino (Cape Ridge, roadside near top of ridge) 152 Comment
  HSC100529  Trifolium ciliolatum Carl C. Marshall Jun 1887 476 Humboldt Near Jewett Creek. Comment
  HSC45114  Trifolium ciliolatum R. Sutherland 1978-5-16 7 .16578 Humboldt 155 Comment
  UC1223485  Trifolium cyathiferum Joseph P. Tracy 1933-7-25 12850 Humboldt near Clear Lake; Grouse Mtn. 1524 Comment
  UC162801  Trifolium cyathiferum Joseph P. Tracy 1903-5-23 1902 Humboldt along Eel River (Alder Point); Northern Coast Ranges 91 Comment
  UC33309  Trifolium cyathiferum W. C. Blasdale 1896-6-8 Humboldt Graham's Rage Comment
  HSC45124  Trifolium depauperatum R. Sutherland 1978-5-2 1 .2578 Humboldt 341 Comment
  UC495733  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1932-5-10 9948 Humboldt near Petrolia (Mattole River); Northern Coast Ranges 15 Comment
  UC1103442  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1916-4-30 4684 Humboldt Bucksport Northern Coast Ranges, Eureka 60 Comment
  UCD108809  Trifolium dichotomum Joseph P. Tracy 1933-5-20 12234 Humboldt Cape Mendocino. Mouth of Domingo Creek. South of point of the Cape. Comment
  UC162778  Trifolium dubium J. P. Tracy 1900-6-23 857 Humboldt immediate vicinity Eureka 0 Comment
  CDA4294  Trifolium dubium G. D. Barbe, T. C. Fuller 1974-6-17 1837 Humboldt Sail Court, Shelter Cove. 0 Comment
  HSC15117  Trifolium dubium A. E. Inman 1982-5-25 Humboldt N bank of Mad River, 200 yrds. W of Lindsey Creek Comment
  HSC45105  Trifolium dubium R. Sutherland 1978-5-17 2 .17578 Humboldt 305 Comment
  HSC58555  Trifolium eriocephalum Overton, Butler 1979-7-26 10042 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  POM214889  Trifolium eriocephalum subsp. eriocephalum Joseph P. Tracy 8821 Humboldt Buck Mountain Comment
  UC495651  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8770 Humboldt Larrabee valley Northern Coast Ranges 701 Comment
  UC495652  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-7-6 8835 B Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  BLMAR736  Trifolium fucatum Jennifer Wheeler 2015-5-8 736 Humboldt Larabee Butte, at Butte Creek Access Rd off Hwy 36 in drainage ditches 722 Comment
  OBI4982  Trifolium fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge. One mi E of Cape Mendocino 152 Comment
  CHSC69825  Trifolium incarnatum J. P. Smith; J. O. Sawyer, Tom Nelson 1972-4-22 Humboldt Freeway exit at Benbow. Planted by the Department of Highways. Comment
  HSC59064  Trifolium incarnatum Thomas Wood 1979-4-6 95 Humboldt On Hwy. side W of 2nd bridge overpass from Eureka, on Gunther Island Comment
  UC495659  Trifolium longipes var. oreganum Joseph P. Tracy 1930-7-23 9136 Humboldt Horse Ranges Northern Coast Ranges Comment
  UC16635  Trifolium microdon Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mtn Comment
  SEINET4178759 Image available Trifolium obtusiflorum Unknown 1932-6-14 10153 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC15108  Trifolium repens W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus behind biological science building, near baseball field. Comment
  UC169057  Trifolium variegatum var. melananthum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3594 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC1197513  Trifolium willdenovii Joseph P. Tracy 1927-5-15 8037 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC165551  Trifolium willdenovii Mrs. M. H. Manning 1901-4 70 Humboldt near Hupa Comment
  JEPS4131  Trifolium willdenovii Joseph P. Tracy 1932-4-23 9829 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UCD109897  Trifolium willdenovii Joseph P. Tracy 1933-6-24 12615 Humboldt North end of Big Lagoon. Comment
  HSC33757  Trifolium wormskioldii Ron Ralston 1975-5-24 79 Humboldt Samoa Dunes off Samoa Blvd., across from boat landing Comment
  RSA32731  Trifolium wormskioldii A. A. Heller 1923-7-9 13781 Humboldt Near Arcata. Comment
  HSC15181  Trifolium wormskioldii Joel W. Reinhard 1966-5-14 40 Humboldt Two beaches N of College Cove. Comment
  HSC15189  Trifolium wormskioldii S. J. Moore 1965-5-10 33 Humboldt Near mouth of Little River Comment
  UC303197  Trifolium wormskioldii Joseph P. Tracy 1925-5-30 7044 Humboldt McClellan Mtn Northern Coast Ranges 822 Comment
  POM188101  Triglochin maritima Marcus E. Jones 1931-7-16 29221 Humboldt Arcata. Comment
  CAS-BOT-BC451802  Triglochin maritima Ira L. Wiggins 1932-6-18 5868 Humboldt At mouth of Little River Comment
  HSC103300  Trillium albidum Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3006 Humboldt Six Rivers National Forest; ~ 0.2 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  UC30093  Trillium albidum Mrs. M. H. Manning Apr., 1902 Humboldt near Hupa Hupa Comment
  CAS-BOT-BC133394  Trillium ovatum L. R. Abrams 1922-6-25 8257 Humboldt North of Mad River near Arcata Comment
  CHSC28032  Trillium ovatum L. Greenhill 1977-4-6 12 Humboldt Abundant population 10 ft. from n side of highway 36, 1mile w from Grizzly Creek State Campground. 91 Comment
  POM109203  Trillium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1197817  Trillium ovatum Joseph P. Tracy 1932-7-16 10632 Humboldt woods near Corral Prairie Corral Prairie; Trinity Summit 1584 Comment
  HSC15695  Trillium ovatum Francis Winter 1960-5-23 Humboldt 2 mi. E of Korbel, Korbel-Maple Creek Rd. 183 Comment
  UC1197827  Trillium ovatum Joseph P. Tracy 1912-3-3 3561 Humboldt at Eureka Eureka; Northern Coast Region 0 Comment
  CAS-BOT-BC521320  Trillium rivale J. H. Thomas 1949-6-12 897 Humboldt 2 miles west of Matins Ferry on road to Orick. Comment
  UC213508  Triodanis biflora J. P. Tracy 1919-4-27 5131 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); Ocean Beach Comment
  SEINET10972644  Triodanis biflora Lincoln Constance Constance 818 Humboldt LOOK PRAIRIE Comment
  SEINET3821241 Image available Triodanis perfoliata Joseph P. Tracy 1908-7-1 2912 Humboldt Ridge between Van Duzen and Mad Rivers Comment
  HSC90809  Triphysaria eriantha subsp. eriantha Gail Newton 1982-5-1 2487 Humboldt Eureka, Elk River Wildlife Area Comment
  UC902255  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1944-5-14 17465 Humboldt at Bucksport (near Eureka); , at Bucksport 6 Comment
  JEPS10422  Triphysaria eriantha subsp. rosea Joseph P. Tracy 1941-4-3 Humboldt Samoa , Samoa (Humboldt Bay) Comment
  HSC41654  Triphysaria pusilla J. O. Sawyer 1977-4-23 3044 Humboldt Road separator between Hwy. 101 and parking area at scenic overlook N of McKinleyville Comment
  JEPS13344  Triphysaria versicolor subsp. faucibarbata H. E. and S. T. Parks May, 1930 750 Humboldt near Bridgeville Comment
  CAS-BOT-BC199627  Trisetum canescens Doris K. Kildale 1929-5-26 9129 Humboldt Klamath River at Orleans 152 Comment
  HSC103096  Trisetum canescens Sydney Carothers 2014-7-3 20 Humboldt Six Rivers National Forest, Lassics Botanical Area, Mt. Lassic, upper north slope 1775 Comment
  UC1133274  Trisetum canescens H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad. 0 Comment
  HSC13121  Trisetum cernuum R. H. Berg 1963-5-1 60 Humboldt Arcata, H.S.U. campus. Comment
  HSC38429  Trisetum cernuum D. E. Anderson, J. P. Smith 1971-6-18 - 1056 Humboldt 1 mi. W of Lord Ellis Summit Comment
  UC1056032  Trisetum cernuum H. E. and S. T. Parks June 1952 7551 Humboldt Spruce Cove; Trinidad 60 Comment
  UC526697  Trisetum cernuum Joseph P. Tracy 1926-5-22 7502 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  UC922029  Trisetum cernuum Joseph P. Tracy 1940-8-11 16695 Humboldt Streambank at Raccoon Creek; Trinity River Valley, near Willow Creek 152 Comment
  RSA167432  Triteleia hyacinthina Joseph P. Tracy 1950-6-25 18896 Humboldt Buck Mountain, high meadow on west side, 3 miles south of Burr Valley 1159 Comment
  HSC38090  Triteleia laxa Thomas W. Nelson, James Nelson 1976-5-30 2611 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS58049  Triteleia laxa Lincoln Constance 1934-5-29 710 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  CAS-BOT-BC526354  Triteleia laxa Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  SD56793  Tsuga heterophylla Darley F. Howe 1963-7-7 Humboldt 5 miles north of Orick on Highway #101 Comment
  HSC21409  Typha latifolia W. J. Newton, Jr. 1967-7-30 24 Humboldt N side of Lanphere Rd., 10 yds. from road. Comment
  UC153975  Typha latifolia Joseph P. Tracy 1910-10-8 3168 Humboldt region about Humboldt Bay Brainard's Point; Northern Coast Region, region about Humboldt Bay 0 Comment
  CDA4354  Ulex europaeus T. C. Fuller 1958-6-17 1714 Humboldt T. J. Cotter property, mouth of Elk River, Eureka. 0 Comment
  RSA46914  Umbellularia californica Doris K. Kildale 1925-12-27 1447 Humboldt Kneeland. 762 Comment
  SEINET12103378  Umbellularia californica J. P. Tracy 1950-12-10 s.n. Humboldt no further locality Comment
  UC672857  Urtica dioica subsp. gracilis Joseph P. Tracy 1927-3-6 7837 Humboldt Elk River 30 Comment
  UC1198132  Urtica urens Joseph P. Tracy 1941-6-17 16917 Humboldt Eureka 30 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
  UC1222632  Vaccinium cespitosum Joseph P. Tracy 1951-6-26 19554 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC199316  Vaccinium ovatum P. C. Everett; E. K. Balls 1959-10-26 23974 Humboldt 4 mi. se. from Honeydew along Old Coast Road to Ettersburg 457 Comment
  HSC7910  Vaccinium ovatum Dan O'Brien 1962-5-20 Humboldt 0.5 mi. E of Humboldt State University campus Comment
  UC1193357  Vaccinium ovatum R. H. Neuns 1950-7-13 133 Humboldt 3 mi s Alder Point (Quad. 29D2) 548 Comment
  CHSC27318  Vaccinium parvifolium T. B. Devine 1977-8-20 459 Humboldt Near Kneeland Road ca 1 mi from Kneeland towards Eureka. 548 Comment
  HSC7922  Vaccinium parvifolium J. Pursell 1964-10-11 10113 Humboldt Old Hwy. 101, 3 mi. N Patricks Point State Park Comment
  RSA471156  Vaccinium parvifolium Anonymous 1924-7-10 s.n. Humboldt Arcata. Comment
  RSA50145  Vaccinium parvifolium E. K. Balls 1949-7-11 13973 Humboldt 35 miles west of Willow Creek on Hwy 299 to Arcata. 152 Comment
  CAS-BOT-BC199493  Vaccinium uliginosum Joseph P. Tracy 1932-7-14 10564 Humboldt Trinity Summit, Corral Prairie 1584 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
  HSC91601  Vancouveria hexandra E. Mackey 1986-6-16 Humboldt Patrick's Point State Park Comment
  SBBG2296  Vancouveria hexandra H. and M. Dearing 1933-5-16 599 Humboldt Weott Comment
  UC1196350  Vancouveria hexandra J. P. Tracy 1901-6-10 1135 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC76048  Vancouveria hexandra D. E. Breedlove 1962-6-8 3068 Humboldt Along U.S. Highway 101, 8 miles north of Orick. 60 Comment
  UC1541237  Vancouveria hexandra H. E. and S. T. Parks May, 1930 757 Humboldt in wet woods along the Van Duzen River; along the Van Duzen River Comment
  CAS-BOT-BC76087  Vancouveria planipetala Ira L. Wiggins 1932-6-18 5865 Humboldt Along Jacoby Creek, 2 miles east of Bayside. Comment
  CAS-BOT-BC76090  Vancouveria planipetala Peter H. Raven; R. Snow 1958-7-20 13631 Humboldt Friday Ridge Road to Grouse Mountain, 10.8 miles southwest of junction with United States Highway 299. Comment
  CHSC63383  Vancouveria planipetala Vernon H. Oswald 1994-6-29 6363 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 3.5 mi NE of Titlow Hill Rd., 4.6 mi S of Brush Mtn. Lookout Rd., S of Hey. 299 and Willow Creek. 1237 Comment
  HSC3384  Vancouveria planipetala William J. Ferlatte, B. D. Rogers 1966-6-8 2089 Humboldt 2 mi. W of Forest Glen, Granite Canyon. Comment
  UCD95107  Vancouveria planipetala D. Sanchez-Mata 1996-6-28 s.n. Humboldt Willow Creek. 650 Comment
  CAS-BOT-BC527424  Veratrum californicum L. B. Kildale 1930-7-11 10206 Humboldt Snow Camp. head of Redwood Creek Comment
  UC175819  Veratrum californicum var. californicum Joseph P. Tracy 1913-6-23 4280 Humboldt near summit ridge between Van Duzen and Mad Rivers (in wet meadow); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  UC1198205  Veratrum viride Joseph P. Tracy 1937-8-12 15659 Humboldt Snow Camp 1402 Comment
  RSA12557  Veronica americana Carl B. Wolf 1934-7-2 5882 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  JEPS29846  Veronica scutellata Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7836 Humboldt about 1 mi w of Carlotta (or about 0.5 mi e of Hydesville) Comment
  UC582548  Veronica scutellata Joseph P. Tracy 1927-7-17 8275 Humboldt on lower w foothills of Chaparral Mountain (Three Cabins); North Coast Ranges, , Three Cabins 457 Comment
  HSC55299  Veronica serpyllifolia subsp. humifusa Terry Griswold, Marvin Butler 1979-7-10 6379 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA730595  Veronica serpyllifolia subsp. humifusa Robert F. Thorne, Percy C. Everett 1965-8-8 35263 a Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  HSC70657  Vicia americana var. americana Gail Newton 1980-7-14 1534 Humboldt Near Deadman Ridge 1097 Comment
  HSC100543  Vicia gigantea Carl C. Marshall May 1885 43 Humboldt Thickets everywhere. Comment
  UCD108675  Vicia hirsuta Linda M. Barker 1976-5-13 1479 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC169306  Vicia tetrasperma Joseph P. Tracy 1912-7-7 3739 Humboldt Eureka; Northern Coast Region 0 Comment
  UC175671  Vicia villosa subsp. villosa Joseph P. Tracy 1913-6-10 4085 Humboldt near Bridgeville (Burns ranch); Northern Coast Ranges 304 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
  UC1198430  Viola adunca J. P. Tracy 1901-6-23 1168 Humboldt immediate vicinity of Eureka 0 Comment
  HSC98113  Viola cuneata Cara Witte 2007-6-26 360 Humboldt Horse Mountain Botanical Area. At intersection of 6N38 and National Forest 1. 1416 Comment
  CHSC24743  Viola glabella G. Strang 1976-4-10 5 Humboldt Highway 36, 10.5 mi e of U.S. 101. 97 Comment
  UC1762124  Viola glabella Milo S. Baker 1926-7 145 -26 Humboldt S. Fork Mt., 5 mi from hwy Comment
  HSC21866  Viola hallii W. Lanphere 1937-5-11 Humboldt Hoopa Comment
  RSA21092  Viola hallii Carl B. Wolf 1937-6-14 8820 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  CAS-BOT-BC536955  Viola lobata Volney Rattan 1879-6-1 s.n. Humboldt Klamath Comment
  UC1198453  Viola ocellata Joseph P. Tracy 1913-6-22 4266 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, in Valley of Van Duzen River 762 Comment
  JEPS50445  Viola ocellata Lincoln Constance 1934-5-23 600 Humboldt se slope of mountain above Lookout Prairie; Bull Creek Region, South Fork Eel River 365 Comment
  UC668245  Viola ocellata Joseph P. Tracy 1938-5-1 15731 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC1761529  Viola praemorsa subsp. praemorsa Milo S. Baker 1923-7-20 33 Humboldt near the head of the South Fork of the Yager Comment
  HSC98758  Viola purpurea subsp. purpurea Cara Witte 2008-7-2 818 Humboldt Board Camp Mountain/ Tri Board Camp. Forest Service Road 4N38. 1577 Comment
  HSC39683  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1976-6-16 2738 Humboldt Along old trail from lookout to Blocksburg 1524 Comment
  RSA121893  Vitis californica H. S. Yates 1936-6-24 5871 Humboldt 2 miles E of Bear Butte. Comment
  RSA46711  Vitis californica Doris K. Kildale 1926-5-2 1864 Humboldt Willow Creek Flat. Comment
  UC1197980  Vitis californica Joseph P. Tracy 1933-7-3 12630 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC70759  Vulpia bromoides R. York 1980-5-17 524 Humboldt Near Le Perron Peak 792 Comment
  RSA123466  Vulpia bromoides H. S. Yates 1936-6-16 5663 Humboldt 1 miles southwest of Samoa. 6 Comment
  UC1103714  Vulpia bromoides Joseph P. Tracy 1936-6-17 14960 Humboldt nw slope Buck Mountain; Burr Valley 1066 Comment
  UC1103724  Vulpia bromoides J. P. Tracy 1899-4-30 308 Humboldt immediate vicinity Eureka 0 Comment
  UCD93557  Vulpia bromoides A. H. Murphy 1951-5-15 33 Humboldt 1 mile southeast of Whitlow-Fruitland Road junction on Whitlow Road. Comment
  SEINET7297974 Image available Vulpia bromoides Joseph P. Tracy 1948-1 18065 Humboldt Trinidad 3 Comment
  CHSC19486  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith Jr. 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, ca 1-3 miles west of Hoopa. Comment
  CDA28607  Vulpia microstachys var. ciliata G. F. Hrusa 1993-6-17 11224 Humboldt Red Mountain; Entrance gate to Red Mt. Comment
  HSC97933  Vulpia microstachys var. ciliata Cara Witte 2007-6-19 298 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  HSC70537  Vulpia myuros Gail Newton 1980-6-7 139 Humboldt Near Brush Mtn. 1128 Comment
  SEINET251379 Image available Vulpia myuros var. hirsuta Harley P. Chandler 1186 Humboldt Humboldt Bay Comment
  HSC42304  Whipplea modesta Tom Duebendorfer 1977-5-15 50 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC62987  Whipplea modesta David Wheeler 1979-4-21 77 Humboldt 4 mi. past Maple Creek bridge over Mad River on the way to Eureka, hills above Butler Valley Comment
  UC1198904  Whipplea modesta Joseph P. Tracy 1949-5-8 18294 Humboldt open flat by old Strong's District Schoolhouse (5 mi e of town); Carlotta 60 Comment
  JEPS32070  Wyethia angustifolia Joseph P. Tracy 1930-7-27 8898 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  JEPS90114  Wyethia angustifolia Dean William Taylor May 1972 1069 Humboldt near Arcata Comment
  UC1223304  Wyethia angustifolia Joseph P. Tracy 1950-8-8 19277 Humboldt in lower prairies Trinity Summit, Croghan Hole 1676 Comment
  UC582641  Wyethia angustifolia Joseph P. Tracy 1937-7-24 15524 Humboldt prairie in Devil's Hole; Trinity Summit 1676 Comment
  UC582642  Wyethia angustifolia Joseph P. Tracy 1934-6-14 13217 Humboldt in open forest in serpentine belt Horse Mountain 1432 Comment
  HSC73870  Wyethia longicaulis Gail Newton 1980-7-14 1462 Humboldt Near Last Chance Ridge. 1219 Comment
  CHSC31279  Xerophyllum tenax Mark Stopher 1980-5-28 76 Humboldt On French Camp Ridge, 10 mi w of RTE 169 on Bald Hills Rd. 1000 Comment
  CAS-BOT-BC527079  Xerophyllum tenax Doris K. Kildale; L. B. Kildale 1930-5-11 9530 Humboldt Wire Grass Prairie, Bald Hills 792 Comment
  HSC3245  Zantedeschia aethiopica A. H. Teshima 1963-3-17 12 Humboldt Moonstone Beach Area Comment
  HSC79498  Zeltnera muehlenbergii Kenneth Clark 1979-7-1 454 Humboldt Shelter Cove, Dead Man's Gulch 9 Comment
  HSC8414  Zeltnera muehlenbergii J. P. Tracy 1938-7-18 16085 Humboldt Fickle Hill, 4 mi. S of Arcata 366 Comment
  UC176186  Zigadenus micranthus var. micranthus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3629 Humboldt Alton Northern Coast Region, Alton 30 Comment
  JEPS62265  Zigadenus micranthus var. micranthus W. L. Jepson 1902-6-20 1907 Humboldt Hibbard's Station to Eel River Comment



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