Search Results — 2000 specimen records retrieved (1377 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
  HSC102514  Abies concolor M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1500 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC55196  Abies concolor G. L. Clifton, Griswold 1979-8-2 12292 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CDA17963  Abies grandis R. Spadoni 1999-9-29 PDR 1142246 Humboldt Northern California; USFS Rd. 1, Blue Lake. 0 Comment
  CDA19040  Abies grandis George Loughner 2000-10-6 PDR 023915 Humboldt North Coast Ranges; Ridge E of Blue Lake. 0 Comment
  HSC37348  Abies grandis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 478 Humboldt Along Lost Man Creek. 38 Comment
  UCR122367  Abronia latifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7022 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC62913  Abronia latifolia J. M. DiTomaso 1979-5-20 1062 Humboldt Little River State Beach 10 mi. N of Arcata Comment
  RSA0025871  Abronia umbellata T. S. Elias, Barbara A. Elias 1987-8-24 10622 Humboldt Prairie Creek Redwoods State Park, Gold Bluffs Beach. Comment
  UC1115826  Acer macrophyllum Joseph P. Tracy 1939-10-15 16518 Humboldt Blue Slide on Van Duzen River 91 Comment
  UC535717  Acer macrophyllum Eleanor Armstrong 1934-7-21 1134 Humboldt Richardson Grove , along river, e bank (along river, e bank) 121 Comment
  RSA624389  Acer macrophyllum Louis C. Wheeler 1952-9-14 6930 Humboldt Steep east slope, associated with Umbellularia, Quercus garryana, Pseudotsuga taxifolia. Young tree ca. 8 meters tall. (#5) (Leaves from this tree for analysis). Comment
  SEINET10905087  Achillea Mary Susan Taylor 1982-10-24 Taylor 5173 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  BLMAR746  Achillea millefolium Kate McGrath 2015-7-7 746 Humboldt Samoa Peninsula, Throughout the EPPA 1 Comment
  CHSC10146  Achillea millefolium J. W. Johnson 1961-8-17 1061 Humboldt Arcata, California. W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC31635  Achillea millefolium Glenn McGourty 1974-4-27 21 Humboldt Upper banks of the Mattole River Comment
  JEPS37080  Achillea millefolium W. L. Jepson 1932-7-30 16460 Humboldt Bull Creek Comment
  UC1080536  Achillea millefolium S. S. Tillett 1956-7-6 624 Humboldt along, (in clear area along ridge 12.5 mi from Orleans) Bar Shanty Road; Orleans 1173 Comment
  UC1222918  Achillea millefolium Joseph P. Tracy 1941-8-24 17044 Humboldt near, McKay Camp; South Fork Mountain 1676 Comment
  BLMAR672  Achillea millefolium Jennifer Wheeler 2013-6-7 672 Humboldt King range, Windy Point 80 Comment
  HSC68080  Achillea millefolium J. P. Smith, Steve Selva 1970-6-30 4103 Humboldt Comment
  SFV18535  Achillea millefolium L. Hagenauer 2002-4-29 31 Humboldt Arcata. Path along McDaniel Slough leading to Humboldt Bay, V Street. Comment
  CAS-BOT-BC400001  Achlys californica E. Gundershaug; K. White; D. Johnson 1994-5-17 23 Humboldt 0.5 miles N of Hwy. 299 on old logging road, 17 miles E of Blue Lake 510 Comment
  UC1196355  Achlys californica Joseph P. Tracy 1932-7-13 10491 Humboldt woods near Corral Prairie Klamath Mts., Trinity Summit 1524 Comment
  HSC48482  Achlys triphylla Brad Klipfel 1974-7-23 466 Humboldt Horse Mtn. area Comment
  HSC3340  Achlys triphylla Lincoln Constance 1934-6-1 773 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  SEINET12094127  Achlys triphylla F. H. Utech 1988-1 88 -275 Humboldt 14 mi W of Bridgeville on CA 36, Van Duzen County Park along Van Duzen River 50 Comment
  UCD94991  Achlys triphylla subsp. triphylla D. C. Hagar 1957-6-10 75 Humboldt Mill Creek, 7.5 miles north-northeast of Hoopa. 1402 Comment
  CAS-BOT-BC210655  Achnatherum lemmonii Joseph P. Tracy 1930-7-10 8866 Humboldt Brannan Mountain 1219 Comment
  UC1103145  Achnatherum lemmonii Joseph P. Tracy 1926-6-20 7649 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  CAS-BOT-BC30421  Achyrachaena mollis Doris K. Kildale 1928-5-19 5116 Humboldt Chalk Mountain Comment
  BLMAR508  Acmispon brachycarpus Jennifer Wheeler 2009-5-12 508 Humboldt Red Mountain, In serpentine meadow S of School Section Creek 792 Comment
  UCD104078  Acmispon brachycarpus H. E. Parks 1941-8-1 24183 Humboldt Little River State Park. Comment
  HSC33760  Acmispon micranthus A. Montalvo 1975-5-24 276 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC36791  Acmispon nevadensis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2050 Humboldt Beside FS Rd. 2S08 to Pine Mtn. Comment
  HSC48855  Aconitum columbianum subsp. columbianum Brad Klipfel 1973-7-15 216 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC59943  Aconitum columbianum subsp. columbianum J. P. Smith, Steve Selva 1970-6-30 4112 Humboldt Comment
  CAS-BOT-BC418767  Aconogonon phytolaccifolium Doris K. Kildale 1925-9-1 1368 Humboldt Eureka Comment
  JEPS79802  Actaea rubra Joseph P. Tracy 1932-7-17 10690 Humboldt Devil's Hole Klamath Mts., Trinity Summit (head) 1828 Comment
  CAS-BOT-BC391606  Actaea rubra Volney Rattan 1883-1-1 s.n. Humboldt Mad Riv. Comment
  HSC44137  Adenocaulon bicolor Thomas W. Nelson, Jane P. Nelson 1977-7-1 3564 Humboldt Along N side of ridge between Bear and Blanket Creeks 1494 Comment
  HSC76345  Adenocaulon bicolor Denis Kearns 1981-7-23 383 Humboldt Near Whiteys Peak 732 Comment
  UC1199430  Adenocaulon bicolor Joseph P. Tracy 1912-7-27 3880 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC29863  Adenocaulon bicolor Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek near Cody Comment
  CAS-BOT-BC29865  Adenocaulon bicolor Huron Herbert Smith 1911-6-20 3910 Humboldt unspecified Comment
  HSC952  Adiantum aleuticum C. B. Wolf 1927-8-28 1170 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Rd. to Blue Lake Comment
  UC1239781  Adiantum aleuticum Joseph P. Tracy 1926-6-20 7636 Humboldt Horse Mt; Northern Coast Ranges 1463 Comment
  CAS-BOT-BC62298  Adiantum aleuticum Mrs. H. C. Cantelow 1935-6-13 935 Humboldt E. of Arcata Comment
  HSC44049  Adiantum aleuticum Thomas W. Nelson, Jane Nelson 1977-6-19 3494 Humboldt Above Alder Springs, N of pond 1585 Comment
  HSC79503  Adiantum aleuticum Kenneth Clark 1980-6-14 691 Humboldt Shelter Cove, N fork of Dead Man's Gulch 84 Comment
  SEINET11708385  Adiantum aleuticum J. P. Tracy 1951-1 19622 Humboldt Eureka Comment
  UCD137190  Adiantum jordanii K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  SEINET3868471 Image available Adiantum pedatum var. aleuticum Dan O'Brien 1962-5-19 s.n. Humboldt 2 1/2 mi e. of Bayside on Jacoby Creek.; 0 Comment
  HSC102242  Ageratina occidentalis Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  HSC4595  Agoseris grandiflora J. W. Johnson 1961-8-17 1004 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UCD128595  Agoseris grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt north end of town, Garberville. Comment
  CAS-BOT-BC15348  Agoseris heterophylla J. P. Tracy 1906-5-13 2455 Humboldt Sand hills of Ocean Beach at Samoa, opp. Eureka Comment
  HSC56444  Agoseris heterophylla Griswold, Butler 1979-7-12 7191 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC79419  Agoseris heterophylla Kenneth Clark 1980-4-18 582 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  UC165756  Agoseris heterophylla var. heterophylla J. P. Tracy 1903-5-22 1875 A Humboldt on grassy hills Alder Point 152 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-BC384739  Agrostemma githago Doris K. Kildale 1926-5-31 2018 Humboldt Miranda on South Fork of Eel River Comment
  UC187295  Agrostis alba J. P. Tracy 1901-7-29 1227 Humboldt moist hillside immediate vicinity of Eureka 0 Comment
  HSC8829  Agrostis capillaris D. J. Wilder 1965-5-9 32 Humboldt Arcata, 151 G st. Comment
  CAS-BOT-BC127281  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  HSC76568  Agrostis exarata Teresa Prendusi 1981-7-24 495 Humboldt Near Whiteys Peak 1585 Comment
  POM247142  Agrostis exarata H. E. Parks 1935-06 5607 Humboldt Spruce Cove, Trinidad. Comment
  RSA10027  Agrostis exarata Joseph P. Tracy 1932-7-14 10550 Humboldt Corral Prairie 1524 Comment
  RSA25802  Agrostis exarata C. B. Wolf 1941-7-28 4344 Humboldt Big Lagoon, south side and W. of Redwood Highway. 6 Comment
  UC186906  Agrostis exarata Joseph P. Tracy 1904-7-31 2127 Humboldt sedge swamp Northern Coast Region, Eureka 0 Comment
  UC34115  Agrostis exarata Joseph Burtt Davy and Walter C. Blasdale 1899-5 6216 Humboldt Eureka Comment
  UC526891  Agrostis exarata Joseph P. Tracy 1932-6-14 10145 Humboldt mountainside w mouth of South Fork of Trinity River; North Coast Ranges 609 Comment
  SEINET10789958  Agrostis exarata Joseph P. Tracy 1900-9-2 Tracy 933 Humboldt Immediate vicinity of Eureka. Bed of frog pond. 0 Comment
  CAS-BOT-BC139502  Agrostis hallii L. R. Abrams 1916-7-18 6128 Humboldt Arcata to Trinidad. Comment
  CAS-BOT-BC139504  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  RSA129594  Agrostis hallii H. S. Yates 1936-6-17 5689 Humboldt 1 mile W of Bridgeville 183 Comment
  RSA385503  Agrostis hallii Teresa Prendusi 1977-7-3 9234 Humboldt Road to Fish Lake (Forest Service Road 12N01). 3.5 miles from its junction with State Route 6. 488 Comment
  UC33755  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6175 Humboldt near Ferndale Comment
  HSC58793  Agrostis idahoensis Overton, Butler 1979-7-31 11459 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58802  Agrostis idahoensis G. L. Clifton, Griswold 1979-7-31 11678 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC139128  Agrostis oregonensis Joseph P. Tracy 1930-7-16 8904 Humboldt Northern Coast Ranges. South Fork Mountain. Near McKay Camp. 1676 Comment
  HSC98624  Agrostis pallens Cara Witte 2007-7-11 500 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  CHSC36406  Agrostis stolonifera Donald M. Burk 1981-7-25 54 Humboldt At junction of Rd. 5N10 and Rd. 5N10C. 1249 Comment
  RSA54134  Agrostis stolonifera Henry M. Pollard 1986-8-22 s.n. Humboldt Roadside near Orleans Comment
  UCD53503  Agrostis stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-3 1168 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  UCD53504  Agrostis stolonifera Leo C. Waters 1931-9-1 s.n. Humboldt Eureka. Comment
  HSC8851  Aira caryophyllea H. E. Parks, S. T. Parks Jun 1936 5850 Humboldt Spruce Cove, Trinidad Comment
  UCD55715  Aira caryophyllea A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3620 Humboldt 2 miles north of Orleans, wooded banks of Klemath River. Comment
  UCD55739  Aira caryophyllea A. A. Beetle; G. L. Stebbins 1942-6-3 3587 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
Read comments
Jan 21 2009
  CAS-BOT-BC138197  Aira praecox Joseph P. Tracy 1925-5-24 7013 Humboldt Northern Coast Ranges. Eureka. 60 Comment
  HSC58148  Allium amplectens G. L. Clifton, Griswold 1979-8-2 12193 Humboldt Near Oregon Creek. 1661 Comment
  SEINET12044091  Allium amplectens C. C. Harris, Harris, S. K. 1936-1 645 Humboldt at point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River 710 Comment
  HSC99113  Allium bolanderi var. bolanderi Cara Witte 2007-6-7 232 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC15006  Allium membranaceum Joseph Burtt Davy Jun 21 1899-Jun 23 1899 5820 Humboldt Trinity Summit Trail, Hoopa Valley, low down Hoopa Valley, Trinity Summit Trail Comment
  JEPS47610  Allium siskiyouense Joseph P. Tracy 1932-6-12 10484 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  HSC2971  Allium triquetrum N. D. Dennis 1965-4-17 25 Humboldt 1.0 mi. from Arcata on Old Samoa Rd. Comment
  UC1224691  Allotropa virgata D. E. Anderson 1963-5-18 2447 Humboldt about 1 mi nw of Burnt Ranch School Comment
  HSC3392  Alnus rubra Eugene Andreuccetti 1964-4-2 33 Humboldt 3 mi. N of Tish Tang Ranger Station on Hwy. 96 along Trinity River Comment
  RSA86980  Alnus rubra F. W. Peirson 1926-7-13 7045 Humboldt South of Orick. Comment
  UCD170775  Alnus rubra Gordon Leppig 1998-3-25 724 Humboldt McKinleyville, Central Ave. South-bound lane near 101 junction. 42 Comment
  UC1225944  Alnus viridis subsp. sinuata Joseph P. Tracy 1947-8-24 17913 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CDA28200  Alopecurus geniculatus A. A. Beetle, G. L. Stebbins, J. P. Tracy 1942-6-2 3458 Humboldt Loleta Swamp, S of Eureka. 0 Comment
  HSC8888  Alopecurus geniculatus E. W. Styskel 1964-5-17 91 Humboldt Rio Dell, corner of Center St. and Hwy. 101 Comment
  HSC90772  Alopecurus geniculatus Gail Newton 1982-6-5 3588 Humboldt Elk River Wildlife Area, Eureka Comment
  RSA152374  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt Mouth of Elk River, near Eureka. Comment
  SACT000308  Alopecurus geniculatus Malcolm Nobs, S. Smith 1949-8-3 Humboldt located on borders of irrigation ditch, 1 mile south of fields landing Comment
  UC1103314  Alopecurus geniculatus Joseph P. Tracy 1938-8-20 16139 Humboldt Alton 30 Comment
  UCD55901  Alopecurus geniculatus Malcolm A. Nobs; S. Galen Smith 1949-8-3 1164 Humboldt 1 mile south of Fields Landing, Eel River Valley, Marsh Plant Survey of California. Comment
  HSC8897  Alopecurus pratensis W. F. Cartwright 1965-4-22 60 Humboldt 2 mi. W of Arcata on Arcata bottoms Comment
  RSA167300  Ambrosia artemisiifolia Joseph P. Tracy 1950-8-20 19313 Humboldt Frank Graham's place. Trinity River Valley at Willow Creek. 152 Comment
  CAS-BOT-BC13702  Ambrosia chamissonis Ira L. Wiggins 1940-7-10 9486 Humboldt Big Lagoon Comment
  HSC5663  Ambrosia chamissonis D. E. Anderson 1961-9-2 1771 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  UCR122369  Ambrosia chamissonis George K. Helmkamp, E. A. Helmkamp 2001-7-8 7020 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC93517  Ambrosia chamissonis Gordon Leppig 1998-5-25 786 Humboldt Big Lagoon State Park. 2 Comment
  UC582625  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt s end, along coast at Dry Lagoon Stone Lagoon 3 Comment
  RSA183634  Amelanchier florida D. E. Anderson 1964-4-24 3541 Humboldt 0.5 mile from Hwy 299, on Titlow Hill road. Comment
  HSC55995  Amelanchier pallida Overton, Butler 1979-7-31 11432 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC56066  Amelanchier pallida G. L. Clifton, Griswold 1979-7-31 11731 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  POM117576  Amelanchier pallida Marcus E. Jones 1924-4-28 s.n. Humboldt Sagtorville Comment
  CAS-BOT-BC137865  Ammophila arenaria David D. Keck; J. Clausen 1935-6-16 3387 Humboldt Mouth of Little River. Comment
  CHSC68792  Ammophila arenaria Vernon Oswald 1997-6-5 8535 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.0 mi south of Hwy. 255. 6 Comment
  CAS-BOT-BC213953  Amsinckia H. E. Parks 1933-3-1 4282 Humboldt Trinidad Comment
  UC1198610  Anagallis arvensis Joseph P. Tracy 1912-6-9 3676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC79547  Anagallis arvensis Kenneth Clark 1980-4-18 572 Humboldt 300 yds. E of Dead Man's Gulch; widespread through Shelter Cove 5 Comment
  POM286830  Anagallis arvensis Lyman Benson 1929-7-19 1585 Humboldt Weet Ranger St. Comment
  CDA30216  Anaphalis margaritacea M. K. Beyers, I. Shepardson 2009-9-13 256 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  UC54004  Anaphalis margaritacea Chesnut and Drew 1888-8-8 Humboldt Arcata Comment
  RSA416575  Anaphalis margaritacea C. B. Wolf 1937-8-13 9213 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  HSC44555  Anemone deltoidea Brad Klipfel 1973-7-15 174 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC162853  Anemone deltoidea Joseph P. Tracy 1906-5-6 2444 Humboldt near Hydesville; North Coast Ranges 182 Comment
  CAS-BOT-BC391779  Anemone deltoidea D. E. Breedlove 1962-6-8 3066 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  CAS-BOT-BC391783  Anemone deltoidea W. R. Dudley 1899-6-19 s.n. Humboldt Scotia--Shady Run. Comment
  UCD95449  Anemone deltoidea K. Esau 1934-5-5 s.n. Humboldt Redwood Highway near Scotia. Comment
  UC1196190  Anemone oregana Joseph P. Tracy 1901-4-26 1042 Humboldt n slope Humboldt Hill (near Buhne's Ranch, region about Humboldt Bay); North Coast Ranges 0 Comment
  UC1196195  Anemone oregana Joseph P. Tracy 1933-7-11 12679 Humboldt Horse Mtn 1524 Comment
  UC249649  Anemone oregana Joseph P. Tracy 1922-4-30 6038 Humboldt Three Creeks; North Coast Ranges 914 Comment
  UC642313  Angelica genuflexa Joseph P. Tracy 1938-9-25 16165 Humboldt near Murphy Meadows (Bald Mountain); Bald Mountain 944 Comment
  CAS-BOT-BC221418  Angelica hendersonii L. R. Abrams 1916-7-18 6138 Humboldt At Trinidad Comment
  RSA21584  Angelica hendersonii C. B. Wolf 1937-9-9 9304 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  UC183670  Angelica hendersonii Joseph P. Tracy 1912-7-21 3764 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC582633  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  UC1197376  Angelica hendersonii H. E. Parks and Joseph P. Tracy 1924-8-3 6740 Humboldt Northern Coast Ranges, Big Lagoon Big Lagoon; Northern Coast Ranges, Big Lagoon 152 Comment
  UCD127225  Angelica hendersonii Joseph DiTomaso 1980-6-29 1636 Humboldt south side of Elkshead. 2 miles north of Trinidad. Comment
  RSA246794  Angelica lucida R. F. Thorne, P. Everett 1965-8-9 35337 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  OBI9037  Angelica tomentosa Tracey Call, Viola Call 1966-8-1 2518 Humboldt 2.5 mi up Three Creek Rd. from Willows 427 Comment
  CAS-BOT-BC271492  Anisocarpus madioides Doris K. Kildale 1928-5-19 5118 Humboldt Chalk Mountain Comment
  HSC49963  Anisocarpus madioides Maralyn O'Meara 1974-7-11 541 Humboldt Kneeland; Barry Ridge Comment
  UC169302  Anisocarpus madioides Joseph P. Tracy 1909-7-31 3033 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC271451  Anisocarpus madioides Henry M. Pollard 1948-7-23 s.n. Humboldt Perch Creek canyon, near Orleans Comment
  HSC5979  Anisocarpus madioides H. E. Parks, J. P. Tracy 1934-7-6 5103 Humboldt Cameron Hill, Kneeland 610 Comment
  HSC56443  Antennaria howellii Griswold, Butler 1979-7-12 7190 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1222876  Antennaria suffrutescens Joseph P. Tracy 1947-7-9 17864 Humboldt Horse Mountain 1432 Comment
  UC175182  Anthemis arvensis Joseph P. Tracy 1913-5-21 4074 Humboldt Eureka Northern Coast Region 0 Comment
  RSA254784  Anthemis cotula Thomas W. Nelson 1973-8-19 1111 Humboldt McKeown Ranch north of Dinsmore Comment
  UCD85343  Anthoxanthum occidentale Linda M. Barker 1976-2-22 1312 Humboldt Coast forest and dunes 3 miles west of Arcata. Comment
  SEINET11682981  Anthoxanthum occidentale K. S. Erdman 1970-1 4797 Humboldt Cal-Barrow Road 3 mi E of US 101 at E boundary of Prairie Creek State Park (Redwood N.P.) Comment
  UC1159497  Anthoxanthum odoratum D. L. Gray 1964-5-14 ARCA 64001 Humboldt Humboldt County 18 Comment
  UC589908  Anthoxanthum odoratum H. S. Yates 1936-6-18 5736 Humboldt 2 mi n of Big Lagoon 30 Comment
  UC905641  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad Comment
  UC582471  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1935-10-13 14756 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC57660  Apocynum androsaemifolium G. L. Clifton, Griswold 1979-7-25 10835 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  SDSU2585  Apocynum androsaemifolium D. F. Howe 1961-8-2 3117 Humboldt 23.5 miles east of Orick on Bald Mt. Road. 914 Comment
  HSC35591  Aquilegia formosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2002 Humboldt At French Camp, Bald Hills Comment
  SEINET10480700  Arabis Mary Susan Taylor 1975-4-12 Taylor 464 Humboldt 1 mi W of Berry Summit on Hwy 299, ca. 6 mi W of Willow Creek. Yellow Pine Forest. 762 Comment
  HSC98619  Arabis glabra var. glabra Cara Witte 2007-5-31 154 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  HSC57106  Aralia californica Overton, Butler 1979-7-25 9842 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UCD128219  Aralia californica B. L. Kay 1954-8-26 s.n. Humboldt 5 miles west of Gaberville. Comment
  CAS-BOT-BC128651  Arbutus menziesii Doris K. Kildale; L. B. Kildale 1930-4-13 9574 Humboldt Bridgeville 289 Comment
  CHSC107101  Arbutus menziesii M. Mitchell 2010-4-9 4 Humboldt Willow Creek @ Highway 299 East. 207 Comment
  CHSC26302  Arbutus menziesii Kathy M. Clemens 1977-4-8 15 Humboldt .5 mi W of Willow Creek, Hwy 299E. 93 mi W of Redding. 179 Comment
  HSC60008  Arbutus menziesii M. A. Baker 1977-5-8 259 Humboldt Gray's Falls Comment
  UC1196881  Arbutus menziesii Joseph P. Tracy 1923-3-17 6164 Humboldt Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC314647  Arbutus menziesii Joseph P. Tracy 1927-4-10 7895 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1121508  Arctostaphylos A. E. Wieslander 1931-5-17 192 Humboldt Orick-Orleans Rd Hoopa Quadrangle, Bald Hills Comment
  UC585948  Arctostaphylos Joseph P. Tracy 1936-8-2 15075 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC24094  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast range Horse Mt. 1524 Comment
  CAS-BOT-BC25253  Arctostaphylos canescens subsp. canescens D. Norris 1970-5-20 12181 Humboldt Crest of ridge on Big Hill Rd. E of Hoopa. Comment
  OBI33905  Arctostaphylos canescens subsp. sonomensis David J. Keil 1983-7-2 17321 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mountain Summit rd Comment
  CAS-BOT-BC23728  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23745  Arctostaphylos columbiana Doris K. Kildale 1926-8-22 2586 Humboldt Wiregrass Prairie on road from Orick to Martin's Ferry 716 Comment
  CAS-BOT-BC23812  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Bald Mt. between Korbel and Redwood Creek Comment
  JEPS38947  Arctostaphylos columbiana Joseph P. Tracy 1927-8-14 8331 Humboldt Big Lagoon 152 Comment
  JEPS38962  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12583 Humboldt near summit Hoopa Mountain (ridge 1 mi s of road from Hoopa to Bair's) 1219 Comment
  LA42321  Arctostaphylos columbiana H. E. Parks; 1931-3-25 917 Humboldt near Patrick's Point Comment
  RSA622697  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27679 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1225898  Arctostaphylos columbiana Joseph P. Tracy 1947-5-24 17693 Humboldt Devil's Canyon Big Lagoon 152 Comment
  UC585913  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13141 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  SEINET11984904  Arctostaphylos columbiana var. tracyi Unknown 1965-1 541 Humboldt on USAL Rd, 23 mi N of junction with CA 1 & 2.7 mi S of junction of Four Corners Comment
  UCD50897  Arctostaphylos glandulosa Joseph P. Tracy 1940-7-14 16688 Humboldt Wilder Ridge (near Kings Peak). 762 Comment
  JEPS38655  Arctostaphylos glandulosa subsp. glandulosa Lincoln Constance 1934-6-15 886 Humboldt summit of peak South Fork Eel River, Bull Creek region, Grasshopper Peak 975 Comment
  UC1222638  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1950-8-4 19251 Humboldt Grasshopper Peak Bull Creek State Park Comment
  JEPS38949  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1934-3-11 13160 Humboldt French Camp Ridge 1066 Comment
  HSC37830  Arctostaphylos manzanita Thomas W. Nelson, Jane P. Nelson 1976-2-21 2253 Humboldt Tish-Tang campground Comment
  HSC71673  Arctostaphylos manzanita M. A. Baker 1980-6-26 2386 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC24327  Arctostaphylos manzanita subsp. manzanita H. E. McMinn 1922-7-1 327 Humboldt 2 mi. from ranger station at bridge on road to Red Bluff from Eureka. Comment
  CAS-BOT-BC24369  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15247 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCR32076  Arctostaphylos nevadensis David J. Keil 1983-7-2 17331 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  CAS-BOT-BC40028  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13155 Humboldt French Camp Ridge 1066 Comment
  UCD52856  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1179 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road (from Orick); French Camp Ridge. Comment
  CAS-BOT-BC46635  Arctostaphylos patula Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC7699  Arctostaphylos patula J. Pursell 1964-11-1 11112 Humboldt Near Orleans, intersection of Hwy. 96 and Eyesee Rd. Comment
  JEPS38838  Arctostaphylos patula W. L. Jepson Jul 16 1902-Jul 17 1902 2062 Humboldt trail to Devil's Backbone Trinity Summit 1981 Comment
  UCD53275  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16419 Humboldt Grouse Mountain. 1524 Comment
  SEINET2028710 Image available Arctostaphylos tracyi H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's Point Comment
  CAS-BOT-BC43988  Arctostaphylos uva-ursi Carl B. Wolf 1930-10-28 1779 Humboldt Samoa, Humboldt Bay 15 Comment
  SD41455  Arctostaphylos uva-ursi Edith A. Purer 1932-7-26 4131 Humboldt Samoa Comment
  UC1225934  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt Eureka 45 Comment
  UC154201  Arctostaphylos uva-ursi Harley P. Chandler May, 1901 1193 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  SEINET11984847  Arctostaphylos uva-ursi Unknown 1965-1 554 Humboldt 1.3 mi S of Samoa, Samoa Peninsula Comment
  RSA89766  Arctostaphylos uva-ursi var. coactilis P. A. Munz 1954-7-25 19876 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  CDA10101  Arctotheca prostrata Gordon Leppig 2000-4-9 1288 Humboldt Arcata. Union Street at 7th Street. South of Phillips House. Comment
  CAS-BOT-BC467182  Arenaria serpyllifolia var. serpyllifolia Henry M. Pollard 1946-8-13 s.n. Humboldt Klamath River, near Orleans Comment
  UC1145043  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA245251  Armeria maritima subsp. californica David K. Smith 1968-10-11 6 Humboldt 3 mi S of Trinidad. Comment
  UC1073398  Armeria maritima subsp. californica George B. Rossbach 1955-6-10 397 Humboldt point off Eureka (at Fairhaven); Fairhaven Comment
  HSC44338  Arnica cernua Brad Klipfel 1975-6-17 684 Humboldt Horse Mtn. Comment
  CAS-BOT-BC82430  Arnica discoidea Doris K. Kildale 1926-6-27 2190 Humboldt McClellan Mountain - Sweasey Lake 822 Comment
  HSC63286  Arnica discoidea M. A. Baker 1979-6-29 955 Humboldt Hopkin's Creek. 760 Comment
  UC166070  Arnica discoidea Joseph P. Tracy 1911-7-11 3513 Humboldt hills near Supply Creek; Hoopa Valley 182 Comment
  UC582489  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt near Corral Prairie ((Trinity Summit)); Trinity Summit 1524 Comment
  HSC8986  Arrhenatherum elatius W. F. Cartwright 1965-5-20 79 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  RSA0047108  Arrhenatherum elatius Rebecca Wenk, P. Hopkinson, M. Hammond, S. Spiegal 2008-6-6 832 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles north of Mattole Road, about 3 air miles west of Highway 101. 244 Comment
  HSC67894  Artemisia douglasiana J. P. Smith 1973-5-26 6803 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  POM264517  Artemisia pycnocephala H. E. Parks 1941-08 24186 Humboldt Little River State Park Comment
  RSA21583  Artemisia suksdorfii C. B. Wolf 1937-9-9 9303 Humboldt Coast, 4.5 mi S of Cape Mendocino. 6 Comment
  CHSC68790  Aruncus dioicus var. pubescens Vernon Oswald 1997-6-5 8546 Humboldt Hwy. 299 between Willow Creek and Blue Lake, 1.1 mi west of East Fork Campground, 3.1 mi east of Titlow Hill Rd. 542 Comment
  HSC100257  Arundo donax J. P. Smith 2009-8-3 12642 Humboldt Along Hwy. 254 in Pepperwood. 51 Comment
  POM199456  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Near Orick Comment
  HSC40034  Asclepias cordifolia Thomas W. Nelson, Jane P. Nelson 1976-6-22 2881 Humboldt Just E of Goat Mtn. lookout. 1666 Comment
  CAS-BOT-BC177267  Astragalus agnicidus Robin Bencie 1993-6-15 01 Humboldt Miranda, 2 mi. W. of Hwy. 101 on Bear Butte Road 500 Comment
  JEPS118177  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  RSA187393  Astragalus umbraticus Volney Rattan 1903-1 1878 Humboldt [no locality information provided] Comment
  HSC69756  Atriplex prostrata Thomas W. Nelson 1977-9-22 3751 Humboldt Along E side of State Rte. 101, N of Eureka airport Comment
  HSC60017  Azolla filiculoides M. A. Baker 1978-5-20 566 Humboldt W side of the Klamath River along Hwy. 96 Comment
  JEPS40681  Baccharis glutinosa W. L. Jepson 1932-8-1 16465 Humboldt Bull Creek 121 Comment
  RSA47112  Baccharis pilularis Doris K. Kildale 1925-9-12 1326 Humboldt Salmon Creek near Miranda Comment
  UC1004331  Baccharis pilularis W. L. Colwell 1954-11-20 20 Humboldt 3 mi e of, along Eel River South Fork Quadrangle 29B4; Eel River 91 Comment
  UCD129438  Baccharis pilularis subsp. consanguinea Linda M. Barker 1976-9-3 1691 Humboldt 3 miles west of Arcata. Comment
  HSC28271  Barbarea verna Thomas W. Nelson 1971-4-12 372 Humboldt Beside Hwy. 101 at the Hookton Rd. junction Comment
  CAS-BOT-BC145787  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of South Yager Creek. 762 Comment
  CAS-BOT-BC48160  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3416 Humboldt Bald Mountain ridge - Under forest at edge of Snow Camp Meadow, near base of Snow Camp Mt., at head of high long ridge 1432 Comment
  JEPS3739  Bensoniella oregona Rimo Bacigalupi and L. Constance with R. Moran, R. L. Rodriguez and Sherwin Carlquist 1951-6-14 3410 Humboldt on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) (edge of forest at High Prairie); btw Mad River and Redwood Creek (Bald Mountain ridge) 1066 Comment
  UC1198387  Berberis aquifolium Joseph P. Tracy 1940-8-25 16711 Humboldt High Prairie Bald Mt 1066 Comment
  HSC96208  Berberis aquifolium var. aquifolium J. McIntire, S. Lyon 2005-6-10 6 Humboldt Cold Springs Camp, 7.4 mi. S of Hwy. 299 of F.S. Rd. NF1 1402 Comment
  UC1198389  Berberis aquifolium var. repens Joseph P. Tracy 1947-7-5 17789 Humboldt ridge top 1 mi w Mud Springs (Trinity Summit) 1158 Comment
  CAS-BOT-BC75683  Berberis nervosa L. R. Abrams 1916-7-11 5991 Humboldt Between Blocksburg and Bridgeville. Comment
  CAS-BOT-BC75685  Berberis nervosa H. E. McMinn 1922-8-4 336 Humboldt Along Van Duzen River. Comment
  HSC31569  Berberis nervosa Glenn McGourty 1974-5-11 39 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC3352  Berberis nervosa Francis Winter 1960-4-23 Humboldt 2 mi. E of Korbel 46 Comment
  UC35055  Berberis nervosa Chestnut and Drew 1888-7-11 Humboldt Jarnigan's Comment
  CAS-BOT-BC75803  Berberis pinnata Doris K. Kildale 1929-3-19 7025 Humboldt Top of Liscom Hill, near Essex. 853 Comment
  CAS-BOT-BC75805  Berberis pinnata Doris K. Kildale 1929-4-25 7433 Humboldt Kneeland Prairie. 792 Comment
  CAS-BOT-BC412987  Bistorta bistortoides Doris K. Kildale 1928-5-27 5936 Humboldt Kneeland Prairie 853 Comment
  HSC55138  Bistorta bistortoides G. L. Clifton, Griswold 1979-8-1 12017 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UCSB8245  Blechnum spicant Robbins, G. 1936-8-1 Humboldt Near Strong's Station. Comment
  UC492238  Boechera platysperma Joseph P. Tracy 1932-7-12 10458 Humboldt Head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  SEINET200607 Image available Botrychium multifidum Joseph P. Tracy 1906-11-4 2551 Humboldt Eureka Northern Coast of California 0 Comment
  CAS-BOT-BC420276  Boykinia occidentalis Doris K. Kildale 1927-6-25 3574 Humboldt Fearren's ranch between Thorn & Shelter Cove Comment
  HSC95592  Brassica rapa Andrea Pickart 2002-3-31 19 Humboldt Arcata Marsh, R. Gearhart marsh 0 Comment
  RSA614433  Briza maxima K. L. Chambers 1993-5-5 5717 Humboldt Hwy. 101, where it meets the ocean just south of Orick. Comment
  UC1844146  Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton (Northern Coast Region) Comment
  CAS-BOT-BC144348  Bromus W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  RSA91688  Bromus carinatus F. W. Peirson 1941-7-23 13118 Humboldt Van Damme State Park. Along the creek about 2 miles from camp. Comment
  HSC58761  Bromus carinatus var. carinatus Walter Overton, Marvin Butler 1979-7-26 10101 Humboldt Near Cold Spring, close to the town of Willow Creek. 1417 Comment
  UC37672  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  UC526863  Bromus carinatus var. carinatus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9047 Humboldt near Blake Lookout (Northern Coast Ranges. South Fork Mountain, along summit); Northern Coast Ranges. South Fork Mountain 1737 Comment
  UCD58210  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-31 5332 Humboldt Wolverton Gulch near Hydesville. 91 Comment
  UC1103366  Bromus hordeaceus Joseph P. Tracy 1919-5-31 5151 Humboldt near mouth of Willow Creek (Valley of Trinity River); Northern Coast Ranges 152 Comment
  UC1607840  Bromus hordeaceus H. E. Parks June 1935 4996 Humboldt Trinidad District, Egg Point Egg Point; Trinidad District, Egg Point Comment
  SBBG30039  Bromus rubens L. Larsen 1935-5-28 Humboldt Redway Comment
  RSA126829  Bromus tectorum H. S. Yates 1936-6-19 5715 Humboldt Near Burr valley; South Fork Pk. 915 Comment
  HSC44189  Bromus vulgaris Thomas W. Nelson, Jane P. Nelson 1977-7-4 3613 Humboldt Along road N from Alder Spring 1555 Comment
  HSC9375  Bromus vulgaris D. E. Anderson 1965-9-5 4080 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  UC179918  Bromus vulgaris Joseph P. Tracy 1912-7-27 3884 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC95586  Cakile edentula Andrea Pickart 2002-7-8 160 Humboldt N Spit Dunes, Mad River Co. Park, W of parking area 0 Comment
  UCD114860  Cakile edentula Malcolm A. Nobs; S. Galen Smith 1949-8-11 1337 Humboldt Marsh at eastern shore of Stone Lagoon. Comment
  UCD114943  Cakile maritima Linda M. Barker 1976-9-3 1694 Humboldt 3 miles west of Arcata. Comment
  SEINET10481270  Cakile maritima Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2502 Humboldt Collected in the vicinity of a state park on the beach opposite of mckinleyville. Vast colony of yellow lupinus arboreus. Comment
  UCD114938  Cakile maritima M. Barbour 1969-9-4 s.n. Humboldt West of southern tip of Freshwater Lagoon. Comment
  CAS-BOT-BC185315  Calamagrostis foliosa Roxana S. Ferris 1937-8-21 9391 A Humboldt Shelter Cove. Comment
  UC1145051  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt at bridge 3 mi e Petrolia (bluff bank of river); Mattole River 30 Comment
  UCD56953  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1737 Humboldt North Coast Ranges, rock in Mattole River. Comment
  UCR39782  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Point Delgada Q., Shelter Cove, coastal bluffs of Point Delgada 3 Comment
  UC1103290  Calamagrostis koelerioides Joseph P. Tracy 1934-7-18 13408 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UCD57256  Calamagrostis koelerioides R. Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  CHSC100698  Callitriche heterophylla var. bolanderi Robert F. Thorne; P. Everett 2007-6-13 35345 Humboldt Along Hwy. 101 about 3 mi. N of Eureka; in shallow water ca. 1 ft. deep of ditch along roadside. 1 Comment
  RSA729025  Callitriche heterophylla var. bolanderi R. F. Thorne, P. C. Everett 1965-8-9 35323 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC62990  Callitriche stagnalis David Wheeler 1979-4-22 80 Humboldt Mad River Slough, 1 mi. W of intersection of Mad River Rd. and Iverson Rd. Comment
  CAS-BOT-BC80382  Calocedrus decurrens Doris K. Kildale 1928-7-1 5313 Humboldt Klamath River at mouth of Bluff Creek Comment
  CAS-BOT-BC80391  Calocedrus decurrens Doris K. Kildale 1928-10-7 6750 Humboldt Trinity River at Willow Creek Flat Comment
  HSC99537  Calocedrus decurrens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 202 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA47092  Calocedrus decurrens Doris K. Kildale 1926-8-31 2606 Humboldt Union Mattole - Geo. H. Miner s Ranch, Mattole River Valley Comment
  UC1005668  Calocedrus decurrens Frank W. Gould 1939-5-30 827 Humboldt about 25 mi due e of Eureka (top of Horse Mountain); Horse Mountain 365 Comment
  UCD18587  Calochortus amabilis Roman Gankin 1956-3-17 107 Humboldt off US Hwy 101, south boundary of Jenson Grove, near creek. Comment
Read comments
Feb 17 2006
  UC1197682  Calochortus coeruleus Joseph P. Tracy 1932-7-15 10582 Humboldt e of Corral Prairie; Trinity Summit 1828 Comment
  HSC15342  Calochortus tolmiei Elrid H. Spinas 1948-6-16 58 Humboldt Horse Mtn. Comment
  UC667125  Calochortus tolmiei Joseph P. Tracy 1927-5-8 7960 Humboldt Phillipsville 121 Comment
  UC1222961  Calycadenia fremontii Joseph P. Tracy 1948-9-20 18220 Humboldt Hoopa Valley 91 Comment
  HSC100365  Calycadenia truncata J. McRae 2007-9-13 Humboldt Sims Mtn., Panther dozer line. 732 Comment
  CHSC24853  Calypso bulbosa A. D. Launer 1976-4-9 6 Humboldt On e hillside of Blocksburg Cemetery, ca. 30 yds s of Cemetery Rd, 200 yds w of Alderpoint Rd in Blocksburg. 464 Comment
  RSA381906  Calypso bulbosa Grinnell 1917-6-6 s.n. Humboldt Hoopa Indian Reservation Comment
  HSC54669  Calyptridium monospermum Overton, Butler 1979-7-25 9906 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  UC162767  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1911-7-6 3342 Humboldt mountain slopes along road between Three Creeks and Mouth Willow Creek; Northern Coast Ranges, btwn Three Creeks and Willow Creek 762 Comment
  UC562491  Calystegia purpurata Joseph P. Tracy 1927-7-24 8298 Humboldt Upper Mattole 152 Comment
  CAS-BOT-BC497299  Camassia leichtlinii var. suksdorfii Joseph P. Tracy 1930-7-17 9000 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1676 Comment
  CAS-BOT-BC493387  Camassia quamash subsp. linearis Doris Kildale 1931-5-10 10687 Humboldt Snow Camp Comment
  HSC16445  Camissonia cheiranthifolia S. J. Hawks 1965-5-14 60 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  UC1196941  Camissonia contorta Joseph P. Tracy 1901-4-14 1028 Humboldt Samoa Northern Coast Region, Humboldt Bay Comment
  LA206042  Camissoniopsis cheiranthifolia C. C. Harris; S. K. Harris 1939-8-23 sn Humboldt Samoa Comment
  SD38658  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1932-7-27 4153 Humboldt Comment
  SEINET10462973  Campanula prenanthoides Overton 1979-7-24 OVERTON 9693 Humboldt Near Friday Camp, on the Willow Creek quad., close to the town of Willow Creek 1250 Comment
  UC416596  Campanula prenanthoides P. E. Goddard 1906-6 686 Humboldt Blocksburg Comment
  SEINET10463063  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt WILLOW CREEK Comment
  SEINET10463219  Campanula prenanthoides Shields 1955-8-5 SHIELDS s.n. Humboldt 3 MI NW OF WEOTT, MOIST HILLSIDE Comment
  SEINET10873255  Campanula prenanthoides Sutherland 1976-8-13 SUTHERLAND 27 .13.8.76 Humboldt Bank at mouth of Redwood Creek at South Fork Eel River; Garberville quad. T4S R3E Sec. 10 87 Comment
  SEINET10905929  Campanula prenanthoides Perry 1930-7-11 Perry s.n. Humboldt HUMBOLDT STATE PARK Comment
  SEINET10972394  Campanula prenanthoides Duncan 1920-9-22 Duncan s.n. Humboldt Hoopa Valley Comment
  UC1021825  Campanula prenanthoides J. M. Tucker 1948-9-3 1859 Humboldt road bank on Friday Ridge Road just below Black Rock ((junction of Friday Ridge Road and the Horse Mountain-Grouse Mountain Road)) Comment
  HSC56388  Campanula scouleri Griswold, Butler 1979-7-11 6946 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC98724  Campanula scouleri Cara Witte 2008-7-16 919 Humboldt Forest Service Road 4N38. At intersection to Board Camp Lookout. 1414 Comment
  SEINET10463763  Campanula scouleri Ira L. Wiggins 1930-7-22 Wiggins 4699 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek 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
  UC302120  Cardamine angulata Joseph P. Tracy 1926-6-12 7588 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC37251  Cardamine breweri Joseph P. Tracy 1906-4-29 2432 Humboldt Northern Coast Region. Region about Humboldt Bay. South slope of Humboldt Hill. 152 Comment
  CAS-BOT-BC37421  Cardamine californica LeRoy Ellsworth Detling 1935-4-22 1646 Humboldt Redwoods, Prairie Creek Fish Hatchery. Comment
  CAS-BOT-BC37426  Cardamine californica Doris K. Kildale; L. B. Kildale 1930-5-11 9535 Humboldt Wiregrass Prairie - The Bald Hills. 792 Comment
  HSC6690  Cardamine californica D. E. Anderson 1962-3-17 1934 Humboldt 4 mi. S of Lone Star Ranch Comment
  JEPS79886  Cardamine nuttallii var. covilleana Joseph P. Tracy 1927-6-12 8129 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  CAS-BOT-BC37890  Cardamine oligosperma Alice Eastwood 1907-4-21 21 Humboldt Trinidad. Comment
  HSC64793  Cardamine oligosperma J. P. Smith 1971-10-9 5015 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC552295  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  UC725496  Carex A. A. Heller 1923-7-10 13797 Humboldt Eel River between Scotia and Pepperwood Comment
  CAS-BOT-BC18002  Carex aquatilis var. dives Joseph Prince Tracy 1934-7-30 13504 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  HSC98944  Carex athrostachya Cara Witte 2008-7-16 922 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  UC1103084  Carex athrostachya Joseph P. Tracy 1930-7-23 9139 Humboldt Horse Mountain, near Cold Springs North Coast Ranges 1524 Comment
  CAS-BOT-BC19435  Carex bolanderi Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  HSC36160  Carex bolanderi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2051 Humboldt FS Rd. 2S08, below Alder Springs Comment
  UC562712  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt on ridge 2 mi sw top; Salmon Summit 1767 Comment
  SEINET7556710 Image available Carex densa Andrew L. Hipp 1999-5-31 458 Humboldt Alder Point, Alder Pt Rd ca 5 mi W of Alder Pt. 503 Comment
  UC195347  Carex deweyana subsp. leptopoda Joseph P. Tracy 1916-6-25 4746 Humboldt Redwood Creek, at point E from Trinidad 152 Comment
  UC1103128  Carex echinata Joseph P. Tracy 1935-7-14 14085 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  JEPS121644  Carex echinata Jennifer Buck, Danielle Roach 2009-8-20 Humboldt Doehop Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM04A Comment
  CHSC97053  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common in northern section. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  CAS-BOT-BC19967  Carex exsiccata Joseph Prince Tracy 1934-7-13 13388 Humboldt Dow's Prairie. 60 Comment
  RSA167284  Carex feta Joseph P. Tracy 1950-7-6 19010 Humboldt Buck Mountain: High meadow on west side, 3 miles south of Burr Valley, on the Albee Road. 1159 Comment
  CAS-BOT-BC20877  Carex globosa Harold Ernest Parks; Joseph Prince Tracy 1942-5-16 11556 Humboldt Vicinity of Garberville. 152 Comment
  POM247169  Carex globosa Joseph P. Tracy 1932-4-23 9832 Humboldt Englewood. 91 Comment
  CAS-BOT-BC28419  Carex gracilior Joseph Prince Tracy 1935-6-8 13940 Humboldt At Eureka 60 Comment
  CAS-BOT-BC146592  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Phillipsville; facing South Fork of Eel River 121 Comment
  UC1103098  Carex harfordii Joseph P. Tracy 1935-6-8 13939 Humboldt at Eureka Northern Coast Ranges 0 Comment
  CAS-BOT-BC21021  Carex hendersonii W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  HSC76780  Carex hendersonii L. P. Janeway 1983-5-29 320 Humboldt Along Jolly Giant Creek, E of HSU campus 61 Comment
  HSC103622  Carex hoodii Thomas W. Nelson, Jane Nelson 1987-6-11 8536 Humboldt Along Forest Service Rd. 13N01, 18 mi. from junction with State Route 96. 1067 Comment
  CAS-BOT-BC7845  Carex infirminervia Joseph Prince Tracy 1935-7-23 14162 Humboldt Trinity Summit. Wooded hillsides, lower end of Brett Hole. 1584 Comment
  UC1103093  Carex integra Joseph P. Tracy 1932-7-14 10547 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC102230  Carex jonesii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1151 Humboldt Patterson Meadows 1555 Comment
  UC562428  Carex laeviculmis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8995 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  SEINET7467750 Image available Carex leptopoda J. A. Churchill 1984-5-29 8069 Humboldt entrance road to Cal-Barrel Area Comment
  UC1115809  Carex lyngbyei Joseph P. Tracy 1938-7-15 16069 Humboldt mouth Eel River 3 Comment
  HSC102235  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1157 Humboldt Patterson Meadows 1555 Comment
  HSC70636  Carex multicaulis R. York 1980-5-18 600 Humboldt Near Black Mtn. 792 Comment
  UC1116265  Carex multicaulis Joseph P. Tracy 1942-6-2 17105 Humboldt Valley of South Yager Creek 762 Comment
  HSC70849  Carex multicostata M. A. Baker 1980-6-7 1826 Humboldt Near Ammon Creek 732 Comment
  HSC103144  Carex multicostata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1528 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC44548  Carex multicostata Brad Klipfel 1973-7-15 167 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC562667  Carex multicostata Harold E. Parks and Joseph P. Tracy 1935-6-16 11271 Humboldt lower nw slopes Buck Mt. 792 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
  UCR45817  Carex nudata L. P. Janeway 1983-7-23 439 Humboldt Forks of Salmon Q., East side of Klamath River at Ike's Falls River Access, c. 5 mi north of Orleans. 147 Comment
  HSC48135  Carex nudata D. H. Norris 1971-7-17 19598 Humboldt Along Redwood House Rd., 4 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  SEINET10711630  Carex nudata A. Arthur Heller 1923-7-10 Heller 13795 Humboldt Wet soil along the Eel River between Scotia and Pepperwood in the redwood belt. Comment
  CHSC88894  Carex obnupta L. P. Janeway; B. Castro 2004-9-11 8321 Humboldt North Coast. Near blocked south end of Little River Road 0.4 km north of Central Avenue; near south end of Clam Beach. 5 Comment
  HSC7187  Carex obnupta D. R. Junell 1965-5-2 40 Humboldt 1 mi. S of Fairhaven on Samoa Peninsula Comment
  SEINET7569441 Image available Carex obnupta L. P. Janeway 2003-7-27 7925 Humboldt Rodgers Peak 7.5' quad. North Coast, edge of marsh on south side of southwest end of Hwy 101 causeway across Big Lagoon. 2 Comment
  POM160309  Carex ovalis Joseph P. Tracy 1926-6-20 7631 Humboldt Horse Mountain. 1463 Comment
  HSC7158  Carex pachycarpa H. E. Parks, J. P. Tracy 1935-6-16 11271 Humboldt Buck Mtn., lower NW slopes 793 Comment
  CAS-BOT-BC119228  Carex pachystachya Joseph Prince Tracy 1935-5-25 13885 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC119242  Carex pachystachya Joseph Prince Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC119244  Carex pachystachya Joseph Prince Tracy 1939-7-9 16342 Humboldt Snow Camp 1402 Comment
  HSC45474  Carex pachystachya Thomas W. Nelson, Jane P. Nelson 1978-7-2 4409 Humboldt Along road to Lost Lake, branch off FS 2S08 near Pine Mtn. 1433 Comment
  SEINET10817662  Carex pachystachya Lawrence P. Janeway 1984-6-17 Janeway 847 Humboldt Willow Creek quad (15'). T6N, R4E, NW1/4 of sec. 33. Damp drainage along cutbank of Titlow Hill Rd at turn to Horse Mtn. Serpentine in jeffrey pine forest. 1420 Comment
  UC194803  Carex pansa Joseph P. Tracy 1911-6-25 3258 Humboldt Eureka Northern Coast Region 0 Comment
  HSC60292  Carex pansa Phyllis Krieg 1979-5-2 Humboldt Coast Guard sand dunes, Samoa 0 Comment
  SJSU8437  Carex pansa H. T. Harvey 1977-7-5 603 Humboldt margin of tidal salt-marsh, Elk River Spit, Humboldt Bay Comment
  UC562258  Carex pansa Joseph P. Tracy 1935-7-18 14104 Humboldt next to Table Bluff (around Humboldt Bay); around Humboldt Bay 3 Comment
  UC1103624  Carex scopulorum var. bracteosa Joseph P. Tracy 1935-7-26 14263 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  CAS-BOT-BC117539  Carex serratodens Joseph Prince Tracy 1926-6-27 7692 Humboldt Horse Mountain. Comment
  HSC71729  Carex serratodens M. A. Baker 1980-6-26 2452 Humboldt Near Sims Creek 610 Comment
  HSC98943  Carex serratodens Cara Witte 2007-6-4 196 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC3030704  Carex serratodens Joseph P. Tracy July, 1908 2898 Humboldt near Low Gap (Dinsmore's Ranch, ridge between Van Duzen and Mad Rivers); Northern Coast Ranges 1066 Comment
  UC196570  Carex subbracteata Joseph P. Tracy 1916-5-31 4695 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges 60 Comment
  CAS-BOT-BC115573  Carex tumulicola Joseph Prince Tracy 1935-6-16 11270 Humboldt Buck Mt. Lower NW slopes on grassy hillside. 792 Comment
  HSC49014  Carex tumulicola M. A. Baker 1979-5-25 756 Humboldt Comment
  CAS-BOT-BC115542  Carex unilateralis Joseph Prince Tracy 1933-6-9 12539 Humboldt Fortuna, Bed of winter pool. 18 Comment
  CAS-BOT-BC115544  Carex unilateralis Joseph Prince Tracy 1941-6-29 16935 Humboldt Large dense clump, Hettenshaw Valley 944 Comment
  HSC7088  Carex viridula H. E. Parks Sep 1934 5157 Humboldt Dry Lagoon Comment
  RSA246760  Carpobrotus chilensis R. F. Thorne, P. Everett 1965-8-9 35306 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC249130  Castilleja affinis Doris K. Kildale 1927-6-26 3597 Humboldt Patrick's [Patricks] Point Comment
  HSC93531  Castilleja affinis subsp. affinis Gordon Leppig 1998-6-1 868 Humboldt Horse Mtn., Buck Flat, Titlow Hill Rd. at Ammon Ridge Rd. 1402 Comment
  BLMAR667  Castilleja affinis subsp. litoralis Jennifer Wheeler 2012-7-12 667 Humboldt King range, Strawberry rock 253 Comment
  JEPS93139  Castilleja affinis subsp. litoralis M. Wetherwax 1992-5-20 2435 Humboldt n side Wedding Rock (Patrick's Point State Park); Patrick's Point State Park 30 Comment
  UC1222799  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1950-6-17 18839 Humboldt Eureka slough at the railroad bridge Eureka Comment
  HSC30760  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, James Nelson 1973-5-28 922 Humboldt N of Black Lassic along U.S.F.S. Rd. 1S07 Comment
  CAS-BOT-BC255518  Castilleja applegatei var. pinetorum Rose Madrone 1996-5-20 44 Humboldt 42 miles from Hwy. 101 on Hwy. 299, Gray's Falls picnic area 944 Comment
  JEPS9969  Castilleja attenuata Lincoln Constance 1934-6-19 916 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  HSC92193  Castilleja mendocinensis E. Mackey 1986-7-6 Humboldt Patrick's Point State Park, on trail to Wedding Rock. Comment
  JEPS3830  Castilleja miniata Joseph P. Tracy 1939-8-20 16329 Humboldt near Blue Lake; Mad River 15 Comment
  CAS-BOT-BC244883  Castilleja miniata Thomas W. Nelson; Jane P. Nelson 1979-7-11 5032 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit Comment
  HSC100658  Castilleja parviflora Carl C. Marshall May 1885 57 Humboldt Hills generally. Comment
  HSC73640  Castilleja pruinosa M. A. Baker 1980-7-23 3169 Humboldt Near Orleans Mtn. 1859 Comment
  UC26418  Castilleja pruinosa Harley P. Chandler Jun 1901 1485 Humboldt Klamath River; North Coast Ranges 426 Comment
  UC902253  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18341 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC199378  Castilleja rubicundula subsp. lithospermoides P. E. Goddard 1907-5-29 . 104 Humboldt Van Duzen Comment
  HSC103011  Catalpa bignonioides J. P. Smith 2014-6-6 13868 Humboldt Willow Creek. Ornamental tree 180 Comment
  UC1502115  Ceanothus R. Sutherland 1976-7-5 1 .5.7 76 Humboldt along King's Crest Trail saddle just ne Rattlesnake Ridge; Pt. Delgada Quad., just ne of Rattlesnake Ridge 1051 Comment
  HSC55616  Ceanothus cordulatus Overton, Butler 1979-7-23 9511 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  CAS-BOT-BC49314  Ceanothus cuneatus Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  SEINET7720971  Ceanothus cuneatus Chesnut, Drew 1888-8-1 Humboldt Grouse Creek Comment
  UCD112128  Ceanothus foliosus R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  HSC101664  Ceanothus foliosus var. foliosus J. P. Smith, J. O. Sawyer 2011-4-23 13125 Humboldt Kings Peak Road, 2.4 miles from its junction with Shelter Cove Rd 552 Comment
  HSC92755  Ceanothus foliosus var. foliosus J. R. McFarland 1997-4-10 Humboldt 3.7 mi N on King Range Rd. from Shelter Cove Rd. near peak 602 Comment
  RSA399868  Ceanothus incanus J. P. Smith, J. O. Sawyer 1975-4-6 8050 Humboldt Road to Shelter Cove, 5 miles from the Whitehorn Ettersburg jct, roadside in mixed evergreen woodland Comment
  RSA600895  Ceanothus incanus Louis C. Wheeler 1959-8-1 7620 Humboldt Queens Peak Mine. Comment
  UC1222620  Ceanothus incanus Joseph P. Tracy 1950-8-4 19249 Humboldt Grasshopper Peak Bull Creek State Park at head of Canoe Creek Comment
  UCD112167  Ceanothus incanus B. L. Kay 1955-4-10 s.n. Humboldt Wagner Ranch, 5 miles southwest of Garberville. Comment
  RSA95401  Ceanothus incanus Joseph P. Tracy 1932-5-1 9878 Humboldt Vicinity of Garberville Comment
  OBI36663  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt Ca. 4 mi SE of SR299 along Titlow Hill rd below Horse Mtn Summit rd Comment
  CAS-BOT-BC50476  Ceanothus oliganthus J. R. McFarland 1997-4-10 s.n. Humboldt King Range National Conservation Area - 3.7 miles north on King Range Road from Shelter Cove Road. 601 Comment
  CAS-BOT-BC51702  Ceanothus papillosus W. R. Dudley 1899-10-30 s.n. Humboldt Head of Willow Creek Comment
  CAS-BOT-BC51210  Ceanothus parryi Carl B. Wolf 1927-8-30 1245 Humboldt Bank of stream of Ettersburg Comment
  SDSU10303  Ceanothus parryi D. F. Howe 1962-5-21 3294 Humboldt 2.3 miles N of Garberville on #101. 152 Comment
  HSC43226  Ceanothus pumilus R. Sutherland 1976-4-17 6 .17476 Humboldt 549 Comment
  HSC74332  Ceanothus pumilus Gail Newton 1980-6-16 149 Humboldt Near Monks Camp. 1097 Comment
  UC1198017  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17527 Humboldt Willow Creek Canyon, along Trinity Highway 609 Comment
  UC902165  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17526 Humboldt along Trinity Highway (Willow Creek Canyon); Willow Creek Canyon 609 Comment
  CAS-BOT-BC52954  Ceanothus thyrsiflorus Doris K. Kildale 1927-5-14 3289 Humboldt Big Lagoon - coast terrace Comment
  CAS-BOT-BC52998  Ceanothus thyrsiflorus Carl B. Wolf 1927-8-22 806 Humboldt 1 mile south of Orick, along the hills near the ocean. Comment
  HSC100906  Ceanothus thyrsiflorus Carl C. Marshall Apr 1885 16 Humboldt Vicinity Humboldt Bay everywhere. Comment
  HSC18332  Ceanothus thyrsiflorus D. E. Anderson 1962-2-10 1919 Humboldt 1.5 mi. S of Trinidad Comment
  HSC43217  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 14 .28575 Humboldt Near Tolkan Recreational Site 503 Comment
  HSC76579  Ceanothus thyrsiflorus John Demarinis 1981-7-21 873 Humboldt Near Table Bluff 38 Comment
  CAS-BOT-BC52864  Ceanothus velutinus Volney Rattan 1882-1-1 s.n. Humboldt Road to Knuland Prairie Comment
  HSC102038  Ceanothus velutinus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 941 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  JEPS42318  Ceanothus velutinus W. L. Jepson 1902-6-28 1949 Humboldt near Redwood Creek (High ridge, Acorn P.O. to Green Point Ranch) 1066 Comment
  SEINET193159  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road 5 miles north and 2 miles east of Boynton Prairie 630 Comment
  UC668158  Ceanothus velutinus Joseph P. Tracy 1935-5-12 13798 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC277174  Centaurea X moncktonii Earle Mills 1933-10-27 s.n. Humboldt Eureka Comment
  UCD129971  Centaurea benedicta P. B. Kennedy 1929-6-13 s.n. Humboldt Etter's Ranch, Ettersburg. Comment
  CDA7083  Centaurea calcitrapa T. C. Fuller 1960-8-25 4974 Humboldt Around Pacific Lumber Company barn, across Eel River from South Fork. 0 Comment
  RSA167189  Centaurea solstitialis Joseph P. Tracy 1943-11-28 17452 Humboldt Eel River bar at mouth of Van Duzen near Alton Comment
  SEINET200851  Centaurea solstitialis Joseph P. Tracy 1933-8-27 13002 Humboldt Camp Grant along Eel River 2-5 miles E of the South Fork 46 Comment
  JEPS46930  Centaurium muehlenbergii Lincoln Constance 1934-6-4 820 Humboldt Bull Creek road to Dyerville (Look Prairie); South Fork Eel River, Bull Creek Region, Look Prairie Comment
  JEPS46935  Centaurium muehlenbergii W. L. Jepson 1902-7-13 2022 Humboldt Willow Creek to Hupa Comment
  CDA111  Centaurium tenuiflorum D. G. Kelch 2007-7-25 7 .504 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  UC203958  Centunculus minimus Joseph P. Tracy 1918-7-5 5019 Humboldt Northern Coast Ranges, White Thorn Valley White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  UC1198615  Centunculus minimus Joseph P. Tracy 1942-6-15 17119 Humboldt Englewood Prairie 91 Comment
  UC1223235  Cerastium arvense Joseph P. Tracy 1950-6-15 18820 Humboldt 7 mi. n. Harris (Huestis Rock, on n.e. side of Ridge); Mail Ridge, Huestis Rock Comment
  UC161036  Cerastium arvense Joseph P. Tracy 1909-8-1 3067 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC79360  Cerastium arvense Kenneth Clark 1980-4-18 599 Humboldt Above Dead Man's gulch 175 Comment
  UCD98057  Cerastium glomeratum H. E. Parks; S. T. Parks 1944-4-1 24279 Humboldt Spruce Cove, Trinidad. 60 Comment
  UC62197  Ceratophyllum demersum W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  CAS-BOT-BC135533  Cercocarpus betuloides var. betuloides L. R. Abrams; Rimo Bacigalupi 1922-6-25 8226 Humboldt 6 mi. north of Garberville Comment
  HSC31980  Chamaecyparis lawsoniana Steve Selva, Roger Jensen 1974-8-19 25 Humboldt Horse Mtn. Ski Area Comment
  HSC41651  Chamaecyparis lawsoniana Thomas W. Nelson 1977-10-20 3758 Humboldt Above junction of Maple Creek and Kneeland Rds. 854 Comment
  HSC26872  Chamerion angustifolium subsp. circumvagum Clifton Raymond Chesbrough 1973-6-19 97 Humboldt 1/2 mi. N of College Cove along the coast Comment
  HSC54860  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-7-25 10761 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC76618  Chamerion angustifolium subsp. circumvagum John Demarinis 1981-7-21 884 Humboldt Near Table Bluff 38 Comment
  UCSB4328  Chamerion angustifolium subsp. circumvagum Robbins, G. 1936-8-1 Humboldt Roadside between Carlotta and Strongs Station Comment
  UC503061  Cheilanthes gracillima Joseph P. Tracy 1932-7-17 10683 Humboldt head of Devil's Hole; Klamath Mts, Trinity Summit 1828 Comment
  UC1481862  Cheilanthes gracillima Milo S. Baker 1926-7-13 10 a-26 Humboldt 1/2 mi along Forest Rd from Hwy S Fork Mt Comment
  UC162630  Chenopodium botrys Joseph P. Tracy 1911-7-10 3489 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  BLMAR526  Chimaphila menziesii Jennifer Wheeler 2009-6-23 526 Humboldt King range, On King Peak road Comment
  CAS-BOT-BC451495  Chimaphila umbellata M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N of Garberville Comment
  UC412888  Chimaphila umbellata Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  RSA467017  Chimaphila umbellata subsp. occidentalis H. M. Pollard 1948-7-31 237 Humboldt Orleans Mt. 1372 Comment
  RSA467019  Chimaphila umbellata subsp. occidentalis C. B. Wolf 1937-8-13 9258 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  SEINET11842152  Chrysanthemum leucanthemum Unknown 1981-1 8 Humboldt ca 4 mi NE of Arcata, 200 yds N of Hwy 299 61 Comment
  JEPS58688  Chrysolepis chrysophylla var. chrysophylla W. L. Jepson 1902-6 2150 Humboldt near McKee's (sw corner Humboldt County) 548 Comment
  UC902027  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1949-8-7 18434 Humboldt e side Hoopa Valley (near the Big Hill lookout station) 914 Comment
  HSC36884  Chrysosplenium glechomifolium J. P. Smith, Thomas W. Nelson 1976-4-27 8616 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  UC642242  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  HSC97121  Cicuta douglasii Gordon Leppig 1998-8-23 1078 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC154050  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  UC642314  Cicuta douglasii Joseph P. Tracy 1938-9-25 16169 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  UCD127358  Cicuta douglasii Bellue Goodwin 1932-9-28 s.n. Humboldt Arcata. Comment
  HSC100575  Circaea pacifica Carl C. Marshall Jul 1886 348 Humboldt Xavier's Place, Bald Hills. Comment
  CAS-BOT-BC284439  Cirsium brevistylum Peter H. Raven; R. Snow 1958-7-21 13648 Humboldt Along Titlow Hill Road 0.7 miles south of United States Highway 299 Comment
  CAS-BOT-BC284440  Cirsium brevistylum L. R. Abrams 1916-7-18 6082 Humboldt Between Cercata and Trinidad Comment
  JEPS89473  Cirsium douglasii var. breweri Dean W. Taylor 1991-8-15 12302 Humboldt ridge 1 mi w of Horse Mountain (North Coast Ranges); North Coast Ranges 1493 Comment
  UC249821  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 B Humboldt near Ruby Creek (on the Willow Creek Highway); Northern Coast Ranges 609 Comment
  CAS-BOT-BC285531  Cirsium occidentale var. candidissimum Doris K. Kildale 1928-6-24 5275 Humboldt Horse Mountain 914 Comment
  CAS-BOT-BC288712  Cirsium remotifolium Joseph P. Tracy 1930-7-21 8887 Humboldt Bear River RIdge Comment
  CAS-BOT-BC288714  Cirsium remotifolium Peter H. Raven; R. Snow 1958-7-21 13654 Humboldt 7.2 miles NW of Capetown on road to Ferndale Comment
  SBBG65940  Cirsium vulgare R. Hartwell 1938-8-3 103 Humboldt near Weott Comment
  HSC5385  Cirsium vulgare J. W. Johnson 1961-9-10 1113 Humboldt Arcata, S of Dune 3 N, Christenson Farm, Samoa Pennisula Comment
  UC1222855  Clarkia amoena Joseph P. Tracy 1950-6-8 18751 Humboldt s of point Cape Mendocino; Devil's Gate 3 Comment
  CAS-BOT-BC160950  Clarkia amoena subsp. amoena Doris K. Kildale 1929-6-24 5262 Humboldt Redwood Creek at Berry's 289 Comment
  JEPS43688  Clarkia amoena subsp. huntiana Milo S. Baker 1923-7-20 68 Humboldt Redwood House North Coast Comment
  RSA108238  Clarkia amoena subsp. huntiana Harlan Lewis, M. Lewis 1947-6-12 416 Humboldt Highway 36, 0.1 mile west of Humboldt - Trinity County line Comment
  RSA12450  Clarkia amoena subsp. huntiana Carl B. Wolf 1934-6-30 5843 Humboldt Shelter Cove, 1 mile from ocean 30 Comment
  RSA23649  Clarkia amoena subsp. huntiana Carl B. Wolf 1939-7-8 9520 Humboldt Devil s Gate on road to Petrolia; 1 mile inland 152 Comment
  UC144067  Clarkia concinna subsp. concinna Joseph P. Tracy 1908-6 2742 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 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
  UC183694  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1913-6-23 4284 Humboldt ridge between Van Duzen River and Mad River (near summit, on Dinsmore's Ranch); Northern Coast Ranges 1066 Comment
  BLMAR7  Clarkia gracilis subsp. tracyi Fredric Hrusa 1993-6-17 7 Humboldt Red mountain, small colony summit of rd thru serpentine.Uncommon 900 Comment
  CAS-BOT-BC172501  Clarkia purpurea subsp. quadrivulnera Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  HSC16263  Clarkia purpurea subsp. quadrivulnera David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  RSA108220  Clarkia purpurea subsp. viminea Harlan Lewis, M. Lewis 1947-6-14 422 Humboldt Highway 36 at south fork of Van Duzen River Bridge (4-119) Comment
  UC668286  Clarkia rhomboidea Joseph P. Tracy 1937-7-24 15527 Humboldt 2 mi se Devil's Hole; Trinity Summit 1524 Comment
  JEPS43222  Claytonia lanceolata W. L. Jepson 1902-7-23 2104 Humboldt Trinity Summit Comment
  HSC79435  Claytonia perfoliata subsp. mexicana Kenneth Clark 1981-4-5 1227 Humboldt Dead Man's Gulch 69 Comment
  HSC78959  Claytonia perfoliata subsp. perfoliata L. P. Janeway, K. Berg 1984-4-11 726 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  HSC59580  Claytonia sibirica Rick Lundquist 1979-4-6 1 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  UC672988  Claytonia sibirica Joseph P. Tracy 1937-7-2 15388 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC672993  Claytonia sibirica Joseph P. Tracy 1939-4-25 16220 Humboldt Bull Creek 60 Comment
  HSC17727  Claytonia sibirica D. K. Smith 1968-4-8 14 Humboldt On West End Rd., 3 mi. from Hwy. 299 Comment
  HSC69844  Claytonia sibirica R. Kalal 1980-5-5 48 Humboldt Fickel Hill Rd., 1 mi. E of 11th St., Arcata 183 Comment
  RSA117684  Claytonia sibirica S. S. Tillett 1956-7-3 601 Humboldt 18miles from jct 101. 564 Comment
  SEINET11931359  Claytonia sibirica Unknown 1977-1 2 Humboldt S end of Patricks Point State Park, ca 0.2 km W of hwy 101 & 5 km N of Trinidad 200 Comment
  UCR139132  Coincya monensis Jim Belsher 1997-2-13 01 Humboldt Lot ESE of the Manila Community Services District sewage pump station 6 Comment
  HSC74444  Collinsia grandiflora M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  POM210220  Collinsia grandiflora H. E. Parks, Joseph P. Tracy 1930-5-25 741 Humboldt Laribee Valley. 762 Comment
  HSC96285  Collinsia grandiflora J. Breton, A. Livingston 2005-6-10 8 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NFl 1357 Comment
  UC169092  Collinsia grandiflora Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5673 Humboldt ridge w Hoopa Valley (Hoopa Mt summit); Hoopa Mtn, North Coast Ranges Comment
  HSC32318  Collinsia greenei D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5653 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC66827  Collinsia greenei M. A. Baker 1980-7-11 2808 Humboldt Near Red Mtn. 1433 Comment
  JEPS7342  Collinsia heterophylla Joseph P. Tracy 1927-5-30 8089 Humboldt Vicinity of Garberville 121 Comment
  HSC89590  Collinsia heterophylla M. Roantree 1985-5-24 58 Humboldt S of Trinidad Head summit near cross Comment
  UC902215  Collinsia linearis Joseph P. Tracy 1947-7-5 17790 Humboldt ridge w of Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  HSC20603  Collinsia linearis H. E. Parks 1934-6-14 4789 Humboldt Horse Mtn. 1433 Comment
  HSC39617  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-6-15 2721 Humboldt Along old trail above Alder Springs 1585 Comment
  RSA0117231  Collinsia rattanii Volney Rattan 1903-1 1878 Humboldt Humboldt. Comment
  JEPS13366  Collinsia torreyi var. wrightii W. K. Parks Jul 1933 1365 Humboldt South Fork Mt Comment
  JEPS7056  Collinsia torreyi var. wrightii Joseph P. Tracy 1933-7-16 12777 Humboldt near McKay Camp; South Fork Mtn 1676 Comment
  UC908726  Collomia grandiflora Joseph P. Tracy 1932-7-13 10501 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  BLMAR531  Collomia heterophylla Jennifer Wheeler 2009-6-23 531 Humboldt King range, On Paradise Ridge road Comment
  HSC89514  Collomia heterophylla M. Roantree 1985-4-28 20 Humboldt W side of Trinidad Head, along trail Comment
  RSA409229  Collomia heterophylla M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale, 8 mi north of Garberville Comment
  CAS-BOT-BC180241  Comandra umbellata subsp. californica Doris K. Kildale 1926-5-2 1867 Humboldt Willow Brook, rocky terrace on Trinity River 152 Comment
  HSC45026  Conyza canadensis R. Sutherland 1976-8-19 7 .19876 Humboldt 259 Comment
  UC1199442  Conyza canadensis Joseph P. Tracy 1939-8-5 16395 Humboldt along Van Duzen River (Dinsmore's) 737 Comment
  CAS-BOT-BC181546  Coptis laciniata Lincoln Constance; Reed C. Rollins 1942-5-11 2868 Humboldt Three miles west of East Fork of willow Creek Comment
  HSC103687  Coptis laciniata M. R. Mesler, Jen Kalt 2008-3-19 858 Humboldt Above Mattole River, 2 miles S of Thorn Junction on Briceland-Thorn Rd 226 Comment
  CAS-BOT-BC133714  Corallorhiza Doris Kildale 1931-5-10 10689 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  HSC39077  Corallorhiza maculata J. D. Ackerman 1976-7-3 765 Humboldt 1 mi. E of Blue Lake along old state Hwy. 299. Simpson Demonstration Forest, near hwy. Comment
  HSC27513  Corallorhiza maculata J. D. Ackerman, A. Montalvo 1973-7-5 99 Humboldt 17 mi. E of Hoopa, on Grogan Hole Rd. Comment
  HSC45234  Corallorhiza maculata Thomas W. Nelson, Jane P. Nelson 1977-7-1 3569 Humboldt N side of ridge between Bear Creek & Blanket Creek 1524 Comment
  JEPS64333  Corallorhiza maculata Lincoln Constance 1934-6-9 842 Humboldt Peavine Ridge South Fork Eel River, Bull Creek Region (w slope) 609 Comment
  HSC54018  Corallorhiza mertensiana Griswold, Butler 1979-7-12 7162 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC97979  Corallorhiza mertensiana Cara Witte 2007-7-8 428 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  JEPS64320  Corallorhiza mertensiana W. L. Jepson 1902-6-28 1948 Humboldt Berry's Ranch Redwood Creek (Hupa road) Comment
  POM312521  Cordylanthus maritimus subsp. palustris Malcolm A. Nobs, S. Galen Smith 1949-8-3 1200 Humboldt 2 miles north of Eureka, bordering Humboldt Bay. Comment
  POM319325  Cordylanthus maritimus subsp. palustris Patricia Wilder 1968-8-21 4413 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  CAS-BOT-BC101148  Corethrogyne filaginifolia Doris K. Kildale 1925-7-26 1066 Humboldt Mad River near Blue Lake, West-End Crossing Comment
  CAS-BOT-BC101151  Corethrogyne filaginifolia A. A. Heller 1924-7-23 13874 Humboldt along the highway at the mouth of Little River near Trinidad Comment
  UC1223038  Corethrogyne filaginifolia Joseph P. Tracy 1948-8-22 18106 A Humboldt 5 mi e of town old Strong's District School House; Carlotta 60 Comment
  UC581780  Corethrogyne filaginifolia Joseph P. Tracy 1928-5-20 8442 Humboldt near Petrolia Comment
  RSA125370  Corethrogyne filaginifolia var. californica Peter H. Raven, R. Snow 1958-7-21 13658 Humboldt 2 miles north of Cape Mendocino Comment
  HSC38082  Cornus nuttallii Thomas W. Nelson, James Nelson 1976-5-30 2625 Humboldt McKeown Ranch, N of Dinsmore. Comment
  RSA697172  Cornus nuttallii J. R. Bruff 1937-8-17 919 Humboldt Richardson Grove. Comment
  RSA89892  Cornus nuttallii E. K. Balls, P. C. Everett 1953-10-13 18656 Humboldt 17.4 mi. east of jct. of hwys 101 and 299 above Blue Lake. 274 Comment
  CAS-BOT-BC212174  Cornus sericea Doris K. Kildale 1927-6-4 4164 Humboldt Scotia Bluffs 30 Comment
  UC183589  Cornus sericea subsp. sericea Joseph P. Tracy 1913-6-14 4125 Humboldt opposite Buck Mt. (Dinsmore's Ranch, Valley of Van Duzen R.); Northern Coast Ranges, Valley of Van Duzen R., Dinsmore's Ra 762 Comment
  RSA46902  Cornus sessilis Doris K. Kildale 1926-8-15 2507 Humboldt Willow Creek. 152 Comment
  CAS-BOT-BC190003  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt East side of Big Lagoon. In 1100 acres, slope north above headquarters of Georgia Pacific Lumber Compan. Comment
  CDA1906  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt Northwestern; Outer North Coast Ranges region; 1100 acres, slope N above headquarters of Georgia Pacific Lumber Co. 0 Comment
  HSC31386  Cortaderia selloana Ernest P. Camilleri 1974-11-20 Humboldt 2 mi. S of Arcata on Hwy. 101 Comment
  CAS-BOT-BC180313  Corylus cornuta subsp. californica L. B. Kildale 1926-9-5 2638 Humboldt Lasseck's Peaks - on trail between Canal Goat Camp and Red Peak 1676 Comment
  HSC41356  Corylus cornuta subsp. californica Brad Klipfel 1974-8-2 505 Humboldt Horse Mtn. Comment
  HSC70453  Corylus cornuta subsp. californica Gail Newton 1980-7-20 1642 Humboldt Near Bell Swamps 1426 Comment
  HSC98702  Corylus cornuta var. californica Cara Witte 2007-7-27 606 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1445 Comment
  HSC99445  Corylus cornuta var. californica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 95 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SD117460  Cotoneaster franchetii Robert F. Thorne 1974-7-29 45072 Humboldt Samoa Dunes Comment
  HSC5421  Cotula australis D. E. Anderson 1963-3-16 2388 Humboldt At foot of Scotia Bluffs Comment
  UC1223033  Cotula coronopifolia Joseph P. Tracy 1948-5-31 17986 Humboldt Robertson's Sheep Ranch halfway between Garberville and Harris; Robertson's Ranch 609 Comment
  UC1198827  Crassula connata var. subsimplex Joseph P. Tracy 1940-4-7 16528 Humboldt near Samoa on Humboldt 6 Comment
  UCR275124  Crataegus monogyna Charity A. Hartshorn 2016-4-24 10 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  CAS-BOT-BC376515  Crepis Volney Rattan 1867-6-1 s.n. Humboldt Unspecified Comment
  UC1787278  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6992 Humboldt North coast redwood area; CA-36, along the Van Duzen R. 19.6 mi E of US-101 (W of Bar W rd). 137 Comment
  CAS-BOT-BC290590  Crepis capillaris L. R. Abrams; R. Bacigalupi 1922-6-25 8287 Humboldt North of Big Lagoon Comment
  CAS-BOT-BC291483  Crepis capillaris Joseph P. Tracy 1948-9-26 18299 Humboldt Fickle Hill, 6 miles southeast of Arcata 609 Comment
  CAS-BOT-BC290727  Crepis occidentalis subsp. conjuncta Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  RSA43684  Crepis setosa H. M. Pollard 1948-8-8 s.n. Humboldt Roadside between Orleans and Camp Creek Comment
  HSC5459  Crocidium multicaule H. E. Parks 1930-5-25 867 Humboldt Laribee Valley 762 Comment
  RSA201792  Crocidium multicaule Roman Gankin, W. R. Hildreth 1966-3-15 700 Humboldt On serpentine slopes of Klamath River canyon, State Highway 96, 4.6 miles north of Hoopa. Comment
  HSC98635  Croton setiger Cara Witte 2008-8-16 1031 Humboldt Along National Forest 1. On Kinsey Ridge. 1336 Comment
  HSC100402  Cryptantha Carl C. Marshall 428 Humboldt Perrington. Comment
  HSC3587  Cryptantha torreyana H. E. Parks, J. P. Tracy 1934-6-27 11058 Humboldt Grouse Mtn. Comment
  UC525598  Cryptantha torreyana Joseph P. Tracy 1930-6-15 8751 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC1222265  Cryptantha torreyana Joseph P. Tracy 1949-8-11 18470 Humboldt 2-6 mi s Grouse Mt. (e of headwaters of Redwood Creek, power plant southward); Kinsey Ridge 1280 Comment
  HSC55165  Cryptogramma acrostichoides Gilbert Muth 1979-8-1 12155 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC58088  Cuscuta californica G. L. Clifton, Griswold 1979-8-1 11997 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC57637  Cuscuta occidentalis G. L. Clifton, Griswold 1979-7-25 10796 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC57970  Cuscuta occidentalis G. L. Clifton, Griswold 1979-7-31 11699 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC59578  Cuscuta pacifica var. pacifica Rick Lundquist 1979-5-18 102 Humboldt South G St. 1 mi. S of Samoa Blvd. around Humboldt Bay 0 Comment
  HSC6395  Cuscuta subinclusa J. P. Tracy 1924-7-20 6736 Humboldt Brannan Mtn. on Willow Cr. Rd. 1006 Comment
  HSC82128  Cycladenia humilis D. K. Imper 1985-6-18 Humboldt At ridgetop 1.5 mi. N of Whitey's Peak 1707 Comment
  UCD127353  Cyclospermum leptophyllum Joseph P. Tracy 1946-6-13 17613 Humboldt 5 miles east of Carlotta. 30 Comment
  HSC100845  Cynodon dactylon J. P. Smith, J. O. Sawyer 2009-10-4 12687 Humboldt Edge of parking lot at Ma-Le'l Dunes BLM Co-op Management Area 7 Comment
  UC1222260  Cynoglossum occidentale Joseph P. Tracy 1948-8-15 18121 Humboldt on Ridge 2 mi. e. of Grove's Prairie (Trinity Summit Rd.); Trinity Summit 1524 Comment
  BLMAR320  Cynosurus cristatus Jennifer Anthony-Wheeler 2002-8-9 320 Humboldt Lost Coast Headland, Growing near pond in lost Coast headlands 121 Comment
  UCD60130  Cynosurus cristatus Peter H. Raven; R. Snow 1958-7-21 13657 Humboldt 2 miles north of Cape Mendocino. Comment
  CAS-BOT-BC190376  Cynosurus echinatus David D. Keck 1948-7-1 5977 Humboldt Northeast end of Big Lagood [Lagoon]. Comment
  UC1056066  Cynosurus echinatus J. I. Mallory 1955-6-7 114 Humboldt n end Luke Prairie; Quad. 29-B-3, n end of Luke Prairie 350 Comment
  UCD60167  Cynosurus echinatus R. Tofsrud 1948-7-1 s. n. Humboldt Bluffs above Capetown. Comment
  HSC37996  Cyperus eragrostis Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  CAS-BOT-BC114625  Cyperus eragrostis Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley place. Comment
  SEINET200683  Cypripedium montanum Joseph P. Tracy 1918-5-26 4937 Humboldt Redwood Creek at foot of Grouse Mt. 610 Comment
  HSC89606  Cytisus scoparius M. Roantree 1985-5-7 44 Humboldt E side of Trinidad Head Comment
  CDA4057  Cytisus scoparius T. C. Fuller 1961-3-22 5940 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  HSC58694  Dactylis glomerata Overton, Butler 1979-8-2 12697 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC9542  Dactylis glomerata S. R. Johnson 1965-5-10 54 Humboldt 1.0 mi. N of Luffenholtz Beach Comment
  UC37939  Dactylis glomerata Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5431 Humboldt Hubbard's Station Comment
  RSA126598  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E of mouth of Mad River. 30 Comment
  CAS-BOT-BC189738  Danthonia californica David D. Keck 1944-7-11 5493 Humboldt 3 miles northeast of Capetown. 152 Comment
  CAS-BOT-BC189741  Danthonia californica Joseph P. Tracy 1934-7-18 13421 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  UC526683  Danthonia californica var. americana Joseph P. Tracy 1927-7-4 8234 Humboldt Lone Star Creek North Coast Ranges, Iaqua 609 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
  JEPS49588  Darmera peltata Harley P. Chandler May 1901 1233 Humboldt Redwood Belt; North Coast Ranges 91 Comment
  JEPS49583  Darmera peltata W. L. Jepson 1902-6-30 1958 Humboldt Redwood Creek; Berry's Ranch Comment
  SEINET6421143 Image available Datisca glomerata Joseph P. Tracy 1932-1 10805 Humboldt Blue Slide, on Van Duzen River 91 Comment
  SEINET10454790  Daucus carota Mary Susan Taylor 1977-8-5 Taylor 1432 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  UC1197350  Daucus pusillus J. P. Tracy 1901-7-29 1228 Humboldt immediate vicinity Eureka (hillside in Connick's Field) 0 Comment
  UC1197352  Daucus pusillus Joseph P. Tracy 1901-8-2 1248 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1197355  Daucus pusillus Joseph P. Tracy 1918-7-3 4996 Humboldt Shelter Cove Northern Coast Ranges, Shelter Cove 15 Comment
  BLMAR630  Delphinium decorum Jennifer Wheeler 2011-6-15 630 Humboldt Lacks Creek, Pine Ridge Road Comment
  UC1196321  Delphinium decorum subsp. tracyi Joseph P. Tracy 1908-6-9 2649 Humboldt open places near hilltops Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCR45420  Delphinium depauperatum D. K. Imper 1985-6-19 s.n. Humboldt Above and Below FS road 10N01, just NW of Whitey's Peak 160 Comment
  HSC46067  Delphinium depauperatum R. C. Wunner 1962-5-6 Humboldt Denny Forest Service Campground Comment
  RSA304854  Delphinium gracilentum James R. Shevock 1971-5-29 643 Humboldt Trinity Hwy. 457 Comment
  HSC98907  Delphinium nudicaule Cara Witte 2007-5-23 106 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  UC162815  Delphinium trolliifolium Joseph P. Tracy 1908-6 2774 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC44763  Delphinium trolliifolium Maralyn O'Meara 1972-6-8 93 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  JEPS102996  Delphinium trolliifolium R. Raiche, K. Zadnik, and H. Forbes 1991-6-13 136 Humboldt 39 mi E of Rio Dell (on Hwy 36) 896 Comment
  UCD61253  Deschampsia cespitosa Malcolm A. Nobs; S. Galen Smith 1949-8-3 1167 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  HSC82970  Deschampsia cespitosa subsp. beringensis A. L. Eicher 1985-8-8 Humboldt Salt marsh bordering Elk River, 0.4 mi. NW of the Elk River bridge. 1 Comment
  CDA18064  Deschampsia cespitosa subsp. cespitosa Huggel 1999-7-3 PDR 1223445 Humboldt Railroad right-of-way, Eureka. 0 Comment
  UC60241  Deschampsia cespitosa subsp. holciformis Schmidt Humboldt Humboldt Bay Comment
  CAS-BOT-BC201778  Deschampsia elongata Doris K. Kildale 1928-7-1 5309 Humboldt French Camp - Bald Hills - Orick - Martin's ferry road Comment
  HSC53938  Deschampsia elongata Griswold, Butler 1979-7-11 6970 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC63882  Deschampsia elongata M. A. Baker 1979-6-29 960 Humboldt Hopkins Creek 750 Comment
  HSC72638  Deschampsia elongata J. P. Smith 1977-7-3 9245 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  UC1103216  Deschampsia elongata Joseph P. Tracy 1950-7-31 19232 Humboldt Grouse Mt. 1524 Comment
  UC1541536  Deschampsia elongata Harold E. Parks May 1931 3232 a Humboldt Big Lagoon Comment
  UC187266  Deschampsia elongata Joseph P. Tracy 1911-7-5 3316 Humboldt near its mouth (a tributary of Trinity R.) Willow Creek; Northern Coast Ranges, Willow Creek 243 Comment
  HSC74201  Descurainia incisa subsp. incisa M. A. Baker 1980-7-19 3005 Humboldt Near Bret Hole. 1814 Comment
  HSC37421  Dicentra formosa Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 514 Humboldt Along Lost Man Creek. 38 Comment
  HSC42793  Dicentra formosa Rick Cooper 1977-4-23 14 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UCR179275  Dicentra formosa R. G. Swinney 1968-3-28 237 Humboldt East of Humboldt State College, Arcata 152 Comment
  UC1021939  Dicentra formosa Rolf Y. Berg 1955-6-17 Humboldt n of Wiott (Highway 101, Avenue of the Giants) Comment
  CAS-BOT-BC402412  Dicentra formosa subsp. formosa S. Morrissette; J. Williams; K. Kopper 1994-5-6 040 Humboldt Intersection of Hwy 299 & Redwood Valley Rd. 609 Comment
  CAS-BOT-BC402414  Dicentra formosa subsp. formosa N. Wynne; M. Peckham; J. Bamesberger 1994-5-6 41 Humboldt Intersection of Hwy 299 and Redwood Valley Rd on south side of Hwy 299 609 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
  SEINET3071630 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1900-8-26 925 Humboldt Eureka Comment
  HSC3004  Dichelostemma capitatum subsp. capitatum Elrid H. Spinas 1948-5-15 22 Humboldt Horse Mtn. Comment
  CAS-BOT-BC502556  Dichelostemma congestum P. E. Goddard 1907-5-29 b. 109 Humboldt Van Duzen Comment
  CHSC2082  Dichelostemma ida-maia A. Small 1954-5-1 Humboldt Near Honey-dew Comment
  HSC81576  Dichelostemma ida-maia Thomas W. Nelson, Jane P. Nelson 1980-7-13 6067 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  CAS-BOT-BC501025  Dichelostemma ida-maia M. S. Jussel 1931-5-2 s.n. Humboldt Eureka Comment
  HSC44728  Dichelostemma ida-maia Maralyn O'Meara 1972-6-8 79 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UC1222689  Dichelostemma ida-maia Joseph P. Tracy 1950-6-15 18777 Humboldt 5 mi n Harris (on the Overland Road); Mail Ridge Comment
  UC198616  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie; Northern Coast Ranges 60 Comment
  UC212865  Digitaria sanguinalis Joseph P. Tracy 1919-9-13 5195 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley nr Willow Creek 152 Comment
  CAS-BOT-BC150343  Diplacus aurantiacus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CHSC579  Dipsacus fullonum M. Anthony 1960-5-14 Humboldt Arcata. Comment
  SEINET4170354  Disporum hookeri Joseph P. Tracy, Tom Britton 1924-5-4 6670 Humboldt Grizzly Creek , on Van Duzen River Comment
  POM277202  Disporum hookeri var. hookeri Lyman Benson 1928-7-11 163 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  SEINET199554 Image available Distichlis spicata Joseph P. Tracy 1923-1 6286 Humboldt Mouth of Davis Creek. Comment
  UC38073  Distichlis spicata Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5604 Humboldt Arcata 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
  UC1199180  Draba verna Joseph P. Tracy 1931-3-26 9290 Humboldt along Van Duzen River (Alton); North Coast Ranges, along Van Duzen River 30 Comment
  CAS-BOT-BC401534  Drosera rotundifolia Carl B. Wolf 1927-8-1 s.n. Humboldt Marsh near Eureka Comment
  RSA0011676  Drosera rotundifolia C. B. Wolf 1937-8-10 2901 Humboldt Big Lagoon, bog at state park. 6 Comment
  HSC77997  Drymocallis rhomboidea D. K. Imper 1982-7-2 1412 Humboldt Near Connely Creek, N Fork 1493 Comment
  CAS-BOT-BC71057  Dryopteris expansa Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  JEPS35138  Dryopteris expansa Milo S. Baker 1923-7-16 20 Humboldt 4 mi se Eureka Comment
  HSC45062  Dysphania botrys R. Sutherland 1976-8-13 15 .13876 Humboldt Redwood Creek, Whittemore Grove. 87 Comment
  UC1103264  Echinochloa crus-galli Joseph P. Tracy 1934-8-14 13569 Humboldt Alton; Northern Coast Region 30 Comment
  RSA152345  Eleocharis acicularis var. acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow s Prairie. 61 Comment
  UC213006  Eleocharis bella Joseph P. Tracy 1919-5-31 5180 Humboldt shores of Lack Pond, near Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC666920  Eleocharis bella Joseph P. Tracy 1935-7-17 14108 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC668026  Eleocharis bella Joseph P. Tracy 1931-1 9727 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC183688  Eleocharis macrostachya Joseph P. Tracy 1909-5-23 2973 Humboldt Eureka 0 Comment
  HSC49506  Elodea canadensis R. York 1979-5-19 310 Humboldt Behind the Field House on the E side of the Humboldt State University campus, Arcata. Comment
  BLMAR37  Elymus Brad Barr 37 Humboldt King range Comment
  HSC73057  Elymus X hansenii M. A. Baker 1980-7-23 3163 Humboldt Near Orleans Mtn. 1859 Comment
  HSC100212  Elymus caput-medusae J. P. Smith 2010-6-21 12945 Humboldt Along Friday Ridge Road, 0.4 mi. from junction with Hwy. 299 233 Comment
  UC526783  Elymus elymoides subsp. elymoides Joseph P. Tracy 1933-7-25 12889 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC58661  Elymus elymoides var. elymoides G. L. Clifton, Griswold 1979-7-1 11948 Humboldt Near Horse Trail Ridge, close to the town of Hoopa. 516 Comment
  HSC74892  Elymus glaucus J. P. Smith 1977-7-3 9232 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  HSC76198  Elymus glaucus Overton, Butler 1979-8-2 12509 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC79424  Elymus glaucus Kenneth Clark 1980-4-18 608 Humboldt Along access trail to Dead Man's Gulch. 61 Comment
  HSC9716  Elymus glaucus D. C. Juve 1964-5-16 44 Humboldt Campbell Creek Ranger Station, Camp Tish-Tang, Hwy 96. Comment
  RSA10138  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain 1402 Comment
  UC526798  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  UC552765  Elymus glaucus H. E. Parks and Joseph P. Tracy 1934-6-14 11026 Humboldt Horse Mt. Northern Coast Ranges 1371 Comment
  CAS-BOT-BC203473  Elymus glaucus subsp. glaucus Joseph P. Tracy 1934-7-9 13336 Humboldt Near Harris 762 Comment
  UC526849  Elymus multisetus H. E. Parks and Joseph P. Tracy 1934-7-6 11141 Humboldt Iaqua Northern Coast Ranges 609 Comment
  HSC102192  Elymus repens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1106 Humboldt Andy's Camp 1564 Comment
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Jul 9 2015
  SEINET200638  Elymus virescens Joseph P. Tracy 1927-6-26 8215 Humboldt Stone Lagoon. 6 Comment
  UC1103295  Elytrigia repens Joseph P. Tracy 1925-9-13 7267 Humboldt Eel River North Coast Ranges (mouth, on river bank) 6 Comment
  UC505111  Epilobium brachycarpum Joseph P. Tracy 1932-5-22 10112 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC43231  Epilobium brachycarpum R. Sutherland 1976-8-19 2 .19876 Humboldt 259 Comment
  JEPS31529  Epilobium ciliatum subsp. ciliatum Lincoln Constance 1934-5-31 765 Humboldt Bull Cr. flat South Fork Eel River, Bull Creek region, Bull Creek (along n side of creek from w boundary of Park to Grasshopper Pk. (Squaw Cr. rd.)) Comment
  HSC99304  Epilobium ciliatum subsp. glandulosum Jimerson, J. Pageau 1979-8-10 743 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC103288  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-13 Humboldt Six Rivers National Forest, Board Camp Mountain Quad, Lower Trinity District, Board Camp Mtn. Road. 1381 Comment
  HSC49655  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4953 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS38204  Epilobium densiflorum Joseph P. Tracy 1917-9-3 4852 Humboldt Jones Ranch Northern Coast Ranges, Grouse Mt. (lower w slopes) 914 Comment
  HSC102101  Epilobium glaberrimum subsp. fastigiatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1004 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1222850  Epilobium hallianum Joseph P. Tracy 1950-7-6 19015 Humboldt 3 mi s Burr Valley (w side of mt.); Buck Mountain 1158 Comment
  HSC32934  Epilobium minutum Thomas W. Nelson, James Nelson 1973-5-28 950 Humboldt McKeown Ranch N of Dinsmore Comment
  UC583070  Epilobium minutum P. A. Munz 1936-8-13 14382 Humboldt 10 mi w Willow Creek Comment
  UC20060  Epilobium oreganum Chesnut and Drew 1888-7-28 Humboldt Grouse Creek; ; Grouse Creek, Humboldt Co. Comment
  CHSC12022  Epilobium septentrionale R. N. Bowman 1971-9-12 50 Humboldt Located ca. 1.7 mi se of Myers Flat off of Hwy 101. Ca. 4 ft. above s fork Eel River on e bank. 1066 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
  HSC98068  Equisetum arvense Cara Witte 2007-7-11 505 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  SEINET3865662 Image available Equisetum hyemale var. robustum J. P. Smith, class 1971-10-9 4996 Humboldt Banks and flood plain of the Mad River above the Fish Hatchery.; 0 Comment
  CHSC24858  Equisetum telmateia subsp. braunii M. B. Simpson 1976-4-10 25 Humboldt Ca. 100 yds e of West Haven Dr, on n side of Wagon Wheel Rd, ca. 13 mi n of Arcata. 121 Comment
  HSC54581  Equisetum telmateia subsp. braunii Overton, Butler 1979-7-24 9625 Humboldt Near Titlow Hill, close to the town of Willow Cr. 1250 Comment
  SEINET3866711  Equisetum telmateia subsp. braunii R. L. Jarvis 1962-4-7 16 Humboldt Sea level. 2 miles south of Arcata on highway 101.; 0 Comment
  POM281805  Equisetum telmateia var. braunii Lyman Benson 1928-7-9 416 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  HSC38349  Erechtites glomeratus Peter Sorensen 1976-7-14 Humboldt N Spit Comment
  CAS-BOT-BC291173  Erechtites glomeratus Marck Menke 1999-5-30 31 Humboldt Patrick's Point State Park, along trail near Abalone Point Comment
  RSA95041  Erechtites glomeratus F. W. Peirson 1926-7-12 7037 Humboldt Right bank of Redwood Creek, Orick Comment
  POM224221  Erechtites minimus H. E. Parks 1931-09 01058 Humboldt Trinidad. 76 Comment
  POM161486  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt Trinity Summit 1890 Comment
  CAS-BOT-BC298298  Ericameria nauseosa var. speciosa Joseph P. Tracy 1929-8-18 8652 Humboldt Larrabee Valley 701 Comment
  UC581743  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain South Fork Mountain (near McKay Camp) 1676 Comment
  UC581744  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain South Fork Mountain (near McKay Camp) 1676 Comment
  UCSC000772  Erigeron canadensis H. L. Person 1932-8-15 s.n. Humboldt Eureka, Korbel Comment
  CAS-BOT-BC296115  Erigeron foliosus var. confinis Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC29848  Erigeron glaucus Thomas W. Nelson 1971-11-11 596 Humboldt Sand dunes at the foot of Murray Rd. McKinleyville Comment
  HSC58174  Erigeron klamathensis G. L. Clifton, Griswold 1979-8-2 12255 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC205158  Erigeron klamathensis Joseph P. Tracy 1919-9-25 5299 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  JEPS109871  Erigeron maniopotamicus Dean W. Taylor 2007-7-11 20158 Humboldt 1.1 air miles NW of Board Camp Mountain, headwaters Boulder Creek, along Forest Road 4N38 1371 Comment
  CAS-BOT-BC214580  Erigeron philadelphicus D. E. Breedlove 1962-6-8 3064 Humboldt On U.S. Highway 101, 3 miles south of Orick Comment
  CAS-BOT-BC214591  Erigeron philadelphicus John Thomas Howell 1931-6-17 6717 Humboldt At mouth of Van Duzen River Comment
  UC127577  Erigeron philadelphicus var. philadelphicus Harley P. Chandler 1901-6-1 1402 A Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  JEPS22258  Erigeron robustior Milo S. Baker 1923-7-29 134 Humboldt Yager Creek; mt. on s side of camp, region of type locality 792 Comment
  CAS-BOT-BC224258  Eriodictyon californicum Henry M. Pollard 1945-9-1 s.n. Humboldt Road to Redcap Creek Comment
  UC183632  Eriogonum compositum var. compositum Joseph P. Tracy 1913-6-22 4262 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Van Duzen River valley 762 Comment
  CAS-BOT-BC259152  Eriogonum latifolium Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  CAS-BOT-BC259154  Eriogonum latifolium Alice Eastwood 1923-8-14 12313 Humboldt Samoa Comment
  CAS-BOT-BC259180  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River Comment
  HSC49090  Eriogonum latifolium Patricia Shesgreen 1978-8-12 136 Humboldt Along Hwy. 255, 0.25 mi. S of Samoa Bridge Comment
  JEPS95019  Eriogonum latifolium Vernon Oswald and Lowell Ahart 1997-9-4 8853 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  SBBG64031  Eriogonum latifolium H. E. Parks -Aug-1941 24198 Humboldt Little River Comment
  RSA171075  Eriogonum latifolium Robert F. Thorne 1957-9-3 19014 Humboldt Little River Beach, few miles S of Trinidad. Comment
  UC146156  Eriogonum latifolium J. P. Tracy 1904-7-4 2115 Humboldt vicinity Eureka (bluff at Bucksport); Bucksport 0 Comment
  CDA39221  Eriogonum luteolum D. Juliano 2013-8-1 PDR# 120 P06003640 Humboldt Vicinity of Carlotta, along Yager Creek, near Hwy. 36 & Central Ave. Comment
  RSA66020  Eriogonum nudum var. auriculatum F. W. Peirson 1923-7-10 4206 Humboldt Garberville. Comment
  CAS-BOT-BC261490  Eriogonum nudum var. nudum A. A. Heller 1924-7-20 13863 Humboldt Along the Eel River at Phillipsville Comment
  CAS-BOT-BC261726  Eriogonum nudum var. oblongifolium Doris K. Kildale 1925-6-28 813 Humboldt Kneeland Prairie 762 Comment
  JEPS56604  Eriogonum nudum var. oblongifolium W. L. Jepson 1932-8-8 16484 Humboldt Grasshopper Peak, Canoe Creek 1066 Comment
  CAS-BOT-BC269867  Eriogonum nudum var. pubiflorum Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek - near Orleans Comment
  UC1585425  Eriogonum ternatum R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 34 Humboldt on Eyesee Rd. (FS15N01) 10.2 mi n Rte. 96 (on side of rd. to left) Comment
  HSC99560  Eriogonum umbellatum var. argus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 225 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  UC1980592 Image available Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U. S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. Comment
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Jun 19 2014
  HSC55182  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-8-2 12202 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC262322  Eriogonum vimineum F. D. Douthitt 1916-10-1 40 Humboldt Burned area - Snow Mt. Allotment Comment
  HSC57128  Eriophyllum lanatum var. achilleoides Overton, Butler 1979-7-25 9895 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC75943  Eriophyllum lanatum var. achilleoides Overton, Butler 1979-7-24 9706 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  POM265903  Eriophyllum lanatum var. achilleoides Lincoln Constance, Reed C. Rollins 1942-5-12 2886 Humboldt Mouth of Bluff Creek, 6 miles NE of Weitchpec. 152 Comment
  UC34183  Eriophyllum lanatum var. achilleoides Harley P. Chandler May 1901 1234 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  HSC97466  Eriophyllum lanatum var. achilleoides Cara Witte 2007-5-29 129 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC74750  Eriophyllum lanatum var. grandiflorum Gail Newton 1981-7-10 2228 Humboldt Near Board Camp Butte 1494 Comment
  POM288401  Eriophyllum lanatum var. grandiflorum Lyman Benson 1929-7-19 1862 Humboldt Dyerville to Matole River. Comment
  CDA5405  Eriophyllum staechadifolium var. artemisiifolium F. Wetherbee 1959-8-5 2914 Humboldt Cook property, Bear River. 0 Comment
  UC1198967  Erodium brachycarpum Joseph P. Tracy 1923-3-17 6161 Humboldt Garberville Northern Coast Ranges 121 Comment
  HSC8510  Erodium moschatum Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  HSC45085  Erysimum capitatum var. capitatum R. Sutherland 1978-4-23 16 .23478 Humboldt Kinsey (Fraser) Ridge near head 732 Comment
  HSC96277  Erysimum capitatum var. capitatum Jennifer Lumbert, James Robinson 2005-6-15 13 Humboldt NE of Grouse Mtn., below road 1327 Comment
  HSC6782  Erysimum menziesii J. W. Johnson 1962-3-9 1183 Humboldt Samoa Peninsula, on ridges as dune end of trail through Hunt Farm. Comment
  SEINET14045671 Image available Erythranthe nasuta Joseph P. Tracy 1914-1 4457 Humboldt Plants of Northern Coast Ranges of California; Fort Seward. 122 Comment
  HSC100556  Erythronium Carl C. Marshall May 1887 Humboldt No data. Comment
  HSC44396  Erythronium californicum Brad Klipfel 1975-5-24 629 Humboldt Horse Mtn. Comment
  SEINET3886103  Erythronium californicum Eric May, Susan Carter 1987-3-29 115 Humboldt Gray Falls Campground; 10 mi E of Willow Creek on Hwy 299 along Trinity River. N end loop road in campground.; 0 244 Comment
  HSC34508  Erythronium oregonum subsp. leucandrum J. D. Ackerman 1975-5-3 437 Humboldt 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection, W of Redwood Creek Comment
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Mar 11 2013
  UC1541310  Erythronium purpurascens W. K. Parks July 1933 1397 Humboldt South Fork Mountain Comment
  JEPS61876  Erythronium revolutum Joseph P. Tracy 1918-5-1 4896 Humboldt Ashfield Butte Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS88924  Erythronium revolutum Harley P. Chandler Jun 1901 1279 Humboldt Hupa Indian Reservation 1066 Comment
  UC1134597  Erythronium revolutum R. Stahelin 1933-5-17 Humboldt Kneeland Prairie China Flat Quadrangle Comment
  CAS-BOT-BC403037  Eschscholzia californica Joseph P. Tracy 1937-7-29 15598 Humboldt South Fork Mountain. West slope near top, at Hyampom Trail 1676 Comment
  HSC16761  Eschscholzia californica A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction, 100 yards W of Lindsey Creek Comment
  HSC73143  Eschscholzia californica M. A. Baker 1980-5-18 1331 Humboldt Near Black Mtn. 792 Comment
  HSC26901  Eschscholzia californica Thomas W. Nelson 1973-7-27 1103 Humboldt SW of the airstrip at Kneeland Comment
  HSC46009  Eschscholzia californica Catherine Chin 1978-9-8 113 Humboldt Arcata, A and 11th St. Comment
  HSC76043  Eucephalus glabratus Overton, Butler 1979-8-2 12568 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC58819  Eucephalus ledophyllus Gilbert Muth 1979-8-1 12127 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC562612  Euchiton gymnocephalus Joseph P. Tracy 1935-7-20 14110 Humboldt near Blue Lake (on Trinity Highway); North Coast Ranges 274 Comment
  HSC98779  Euphorbia crenulata Cara Witte 2008-6-27 766 Humboldt Along National Forest 1 on Kinsey Ridge. 1.5 mi. NE of intersection with 4N09. 1317 Comment
  UCR94919  Euphorbia helioscopia D. L. Koutnik 1996-7-3 s.n. Humboldt Manila. Comment
  HSC7993  Euphorbia peplus W. F. Nickel 1965-4-22 Humboldt H.S.U. campus on W side of Biological Science building Comment
  HSC35991  Eurybia radulina Thomas W. Nelson, James Nelson 1975-9-1 2189 Humboldt High Rock State Park Comment
  UC1199326  Euthamia occidentalis Joseph P. Tracy 1939-9-24 16501 Humboldt near Blue Lake (along Mad River) 15 Comment
  CAS-BOT-BC278181  Festuca Doris Kildale Gillespie 1931-6-7 10606 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  RSA123475  Festuca californica var. californica H. S. Yates 1936-6-22 5848 Humboldt Willow Creek, China Flat (Humboldt) Comment
  RSA273307  Festuca californica var. californica Thomas W. Nelson, Jane P. Nelson 1976-6-16 2740 Humboldt West of Alder Springs along 2S07. 1524 Comment
  UC525641  Festuca elmeri Joseph P. Tracy 1927-5-8 7962 Humboldt facing South Fork of Eel River; Northern Coast Ranges, Phillipsville 121 Comment
  UC580793  Festuca elmeri H. S. Yates 1936-6-17 5690 Humboldt lower nw slope Buck Mountain; South Fork Pk., Buck Mountain 792 Comment
  UCD65930  Festuca elmeri A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3467 Humboldt 2 miles west of Bridgeville, banks above Van Dusen River. Comment
  HSC32230  Festuca idahoensis J. O. Sawyer 1970-6-24 2231 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC177163  Festuca idahoensis Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC98580  Festuca occidentalis Cara Witte 2007-5-23 95 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1391 Comment
  UCD66133  Festuca occidentalis A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3473 Humboldt 4 miles north of Bridgeville. Comment
  CAS-BOT-BC278959  Festuca rubra Richard W. Pohl 1963-6-2 9452 A Humboldt Sea beach, Trinidad Beach State Park Comment
  CHSC32715  Festuca rubra Thomas Nelson; Jane Nelson 1976-7-26 3024 Humboldt The Lassics. Trinity-Humboldt county line. On road cut of 1S07 west of Black Lassic. 1615 Comment
  HSC9989  Festuca rubra R. H. Berg 1963-4-30 57 Humboldt 1 mi. N of Arcata, on Hwy. 101 Comment
  UC187116  Festuca rubra Joseph P. Tracy 1900-7-4 894 Humboldt Humboldt Bay Comment
  JEPS75445  Festuca subuliflora W. L. Jepson 1934-5-7 16710 Humboldt Buckeye Prairie, Bull Creek Comment
  HSC21494  Foeniculum vulgare H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  CHSC23878  Fragaria chiloensis A. R. Morrison 1974-4-27 Humboldt Throughout understory along immediate coastal cliffs ca. 2 mi. n of Trinidad. Comment
  HSC18622  Fragaria chiloensis D. B. Bader 1963-2-17 14 Humboldt Second of the Clam Beach Lagoons W of Hwy. 101 Comment
  SEINET4090923  Fragaria chiloensis O. M. Clark 1932-1 702 Humboldt North Eureka. Comment
  UC183556  Fragaria vesca Joseph P. Tracy 1913-6-25 4340 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1612458  Fragaria virginiana Gunter Staudt and H. Ahmadi 1989-5-15 313 Humboldt n of Trinidad (along Highway 101, near Seawood Drive exit); Highway 101 Comment
  HSC18394  Frangula californica P. W. Shields May 1955 Humboldt 2 mi N of Willow Creek Comment
  UCSB24343  Frangula californica Constance, Lincoln 1934-6-13 Humboldt East bank of south fork Eel River, North Dyerville Flat, just below Redwood Highway. Comment
  CAS-BOT-BC52738  Frangula californica subsp. californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  CAS-BOT-BC59958  Frangula purshiana H. E. Parks; S. T. Parks 1937-6-1 24018 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC59963  Frangula purshiana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata. Comment
  CAS-BOT-BC59965  Frangula purshiana A. A. Heller 1923-7-9 13775 Humboldt About 5 mi. e. of Arcata on the road to Blue Lake. Comment
  CAS-BOT-BC59970  Frangula purshiana L. R. Abrams 1922-6-25 8258 Humboldt N. of Mad River near Arcata. Comment
  CAS-BOT-BC59994  Frangula purshiana Joseph P. Tracy 1948-8-15 18152 Humboldt Trinity Summit. On ridge 2 mi. e. of Grove's Prairie. 1524 Comment
  SEINET200756  Frasera speciosa Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. 1524 Comment
  CAS-BOT-BC136026  Fritillaria affinis R. C. Barneby 1954-5-19 11571 Humboldt Forested ridge, 13 miles w. of Fort Seward 640 Comment
  UC1005680  Fritillaria affinis Frank W. Gould 1939-5-30 830 Humboldt Horse Mountain, about half-way up mountain road Horse Mountain 1000 Comment
  UC1197627  Fritillaria purdyi Joseph P. Tracy 1938-6-13 15918 Humboldt Grouse Mountain, at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  UC1197629  Fritillaria purdyi Joseph P. Tracy 1926-5-15 7488 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA654821  Fumaria officinalis Gordon Leppig, Sylvia Leppig 2000-12-7 1523 Humboldt Arcata, 7th and I Street just west of Post Office 6 Comment
  JEPS6480  Galium ambiguum subsp. siskiyouense Joseph P. Tracy 1925-5-30 7026 Humboldt Laribee Valley Northern Coast Ranges 731 Comment
  HSC100641  Galium aparine Carl C. Marshall Jul 1887 402 Humboldt Humboldt. Comment
  HSC73541  Galium aparine Gail Newton 1980-7-14 1477 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC19850  Galium aparine J. W. Johnson 1962-4-18 1262 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  HSC57213  Galium bolanderi Griswold, Butler 1979-7-12 7252 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  JEPS6703  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 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
  HSC31221  Galium muricatum D. E. Anderson 1972-6-20 5727 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC416654  Galium parisiense Harley P. Chandler June, 1901 1305 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC57191  Galium triflorum Griswold, Butler 1979-7-11 6908 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC73036  Garrya buxifolia Gail Newton 1980-7-23 1712 Humboldt Near Packsaddle Ridge 1463 Comment
  CAS-BOT-BC188530  Garrya elliptica Milo S. Baker 1927-8-16 2442 a Humboldt Samoa Comment
  CAS-BOT-BC188550  Garrya elliptica J. P. Tracy 1911-10-22 3549 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC8390  Garrya elliptica C. O. Baker 1962-3-22 3 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  RSA485907  Garrya elliptica G. Dahling 1973-06 1229 Humboldt Along Highway 101, about ten miles north of Trinidad. Comment
  UC1174948  Garrya fremontii P. C. Everett and E. K. Balls 1959-10-24 23952 Humboldt Somesbar to Orleans (2.8 mi sw from Siskiyou-Humboldt County line) 198 Comment
  UC169895  Garrya fremontii Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5346 Humboldt near Bell Springs Comment
  UCSB72515  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  POM290957  Gastridium phleoides Lyman Benson 1929-7-16 1648 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  UC1103735  Gastridium ventricosum Joseph P. Tracy 1934-7-6 13663 Humboldt Iaqua; North Coast Ranges, Iaqua 609 Comment
  JEPS79891  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain, at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  HSC31810  Gaultheria shallon Steve Selva, Roger Jensen 1974-8-21 26 Humboldt Redwood grove adjacent to Hwy. 101 rest stop, ca. 3 mi. N of Trinidad Comment
  HSC81927  Gaultheria shallon Thomas W. Nelson, Jane P. Nelson 1979-7-3 4952 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC91900  Gaultheria shallon E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, by trail to Red Alder Campground Comment
  HSC98781  Gaultheria shallon Cara Witte 2008-6-27 771 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  RSA249502  Gaultheria shallon R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35131 Humboldt Wailaki Recreation site. 518 Comment
  SBBG12430  Gaultheria shallon D. E. Breedlove 1961-7-4 645 Humboldt 4.8 mi E of the N fork of the Mad River on US 299 685 Comment
  SBBG22058  Gaultheria shallon R. F. Thorne 1957-9-2 Humboldt Eel River, Burlington State Park, just S of Weott Comment
  UCSB25031  Gaultheria shallon Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  SEINET11991660  Gaultheria shallon Unknown 1977-1 s.n. Humboldt S end of Patrick's Point State Park, ca 0.2 mi W of Hwy 101 and 5 mi N of Trinidad 61 Comment
  HSC55051  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11582 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa Comment
  HSC74175  Gayophytum diffusum subsp. parviflorum M. A. Baker 1980-7-23 3157 Humboldt Near Orleans Mtn. 1859 Comment
  UC1196958  Gayophytum humile Joseph P. Tracy 1933-7-26 12918 Humboldt Grouse Mountain 1524 Comment
  UC35402  Gayophytum humile Chesnut and Drew 1888-7-20 Humboldt S. Fork Mt. Comment
  RSA46856  Gentiana oregana Doris K. Kildale 1926-7-11 2370 Humboldt Bear River, ridge near Mt. Glen. Comment
  HSC57988  Gentiana plurisetosa G. L. Clifton, Griswold 1979-7-31 11730 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA18063  Gentiana sceptrum Carl B. Wolf 1927-8-22 787 Humboldt Big Lagoon. Comment
  POM247167  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt Bald Mountain, near High Prairie. 1067 Comment
  HSC100486  Geranium carolinianum Carl C. Marshall May 1886 192 Humboldt Everywhere. Comment
  RSA0028457  Geranium dissectum H. E. Parks, S. T. Parks 1938-04 24118 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC59668  Geranium molle George Kirn 1977-10-15 Humboldt Eureka, Q and 3rd St. 12 Comment
  HSC8655  Geranium molle Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  CAS-BOT-BC457032  Geum macrophyllum Joseph P. Tracy 1932-7-14 10540 Humboldt Corral Prairie, Trinity Summit 1524 Comment
  CAS-BOT-BC226149  Gilia capitata subsp. pacifica Doris K. Kildale 1927-7-1 3626 Humboldt Alton Hill 30 Comment
  UC133634  Gilia capitata subsp. pacifica Joseph P. Tracy 1905-6-11 2188 Humboldt near Bucksport (region about Humboldt Bay); Region about Humboldt Bay, Northern Coast Region 0 Comment
  UC52485  Gilia capitata subsp. pacifica Joseph Burtt Davy and Walter C. Blasdale 1899-5 5561 Humboldt Alton Alton (Old river bluffs, North-Western California) Comment
  CAS-BOT-BC225471  Gilia millefoliata Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  HSC34464  Gilia millefoliata J. P. Smith 1975-5-11 8077 Humboldt Samoa Peninsula, just N of The Coast Guard Station boundary. Comment
  UC921140  Gilia millefoliata Joseph P. Tracy 1948-6-12 18067 Humboldt sand dunes near Samoa (on Humboldt Bay); , near Samoa 6 Comment
  UC906683  Gilia tricolor subsp. tricolor Joseph P. Tracy 1943-5-9 17419 1/2 Humboldt at Willow Creek Trinity River Valley, at Willow Creek 152 Comment
  UC169033  Githopsis specularioides J. P. Tracy 1903-5-23 1906 Humboldt Alder Point Eel River 152 Comment
  UC169034  Githopsis specularioides Joseph P. Tracy 1908-6-9 2655 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA246693  Glaux maritima Robert F. Thorne, Percy C. Everett 1965-8-7 3520 Humboldt Samoa Peninsula. 0 Comment
  UC1239686  Glechoma hederacea Joseph P. Tracy 1921-6-4 5811 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  HSC93526  Glehnia littoralis subsp. leiocarpa Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 748 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  UC154100  Glehnia littoralis subsp. leiocarpa J. P. Tracy 1901-8-7 1261 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  SEINET200359 Image available Glyceria elata J. P. Tracy 1935-7-25 114251 Humboldt Trinity Summit lower end of Brett Hole 1585 Comment
  UC34100  Glyceria elata Joseph Burtt Davy 1899-6-9 5367 Humboldt Harris Comment
  RSA91960  Glyceria fluitans Joseph P. Tracy 1933-7-20 12801 Humboldt Arcata bottom 15 Comment
  SEINET267680 Image available Glyceria occidentalis Gordon Leppig 1995-4-6 243 Humboldt Arcata; Alder Grove Pond. 12 Comment
  UC1199056  Glycyrrhiza lepidota Joseph P. Tracy 1935-5-30 13913 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC302532  Gnaphalium palustre E. C. Johnston 1931-8-1 s.n. Humboldt Klamath River to Arcata Comment
  HSC32533  Gnaphalium palustre Thomas W. Nelson 1973-9-3 1129 Humboldt McKeown Ranch N of Dinsmore, rocky alluvium along Mad River Comment
  UC164842  Gnaphalium palustre Joseph P. Tracy 1911-7-7 3383 Humboldt 3 m nw of junction with Trinity River Willow Creek (at meadow on mountainside, near Beebs Ranch); Northern Coast Ranges, , Trinity River 914 Comment
  CAS-BOT-BC302534  Gnaphalium palustre Doris K. Kildale 1925-6-30 846 Humboldt Buhne's [Buhne] Point Comment
  HSC28074  Goodyera oblongifolia J. D. Ackerman, A. Montalvo 1973-8-20 114 Humboldt W slope of N Trinity Mtn., E of Hoopa Comment
  JEPS4220  Gratiola ebracteata Joseph P. Tracy 1930-5-18 8697 Humboldt Rohnerville 152 Comment
  HSC95525  Grindelia hirsutula Andrea Pickart 2002-7-19 184 Humboldt Arcata Marsh at Jolly Giant Creek mile .1 10 Comment
  JEPS2620 Image available Grindelia hirsutula H. N. Bolander 1860-1 6493 Humboldt seashore near Big Flat; ; Near Big Flat, Humboldt Co. Comment
  UC1199435  Grindelia hirsutula Joseph P. Tracy 1938-6-17 15955 Humboldt s point of Cape Mendocino Cape Mendocino (in exposed situations near ocean shore) 3 Comment
  UC1223101  Grindelia hirsutula Joseph P. Tracy 1950-9-10 19359 Humboldt 1 mi n Capetown; Bear River Ridge 304 Comment
  UC722051  Grindelia hirsutula C. L. Hitchcock and J. S. Martin 1939-7-14 5437 Humboldt bluffs facing sea at Shelter Cove Comment
  SEINET193102  Grindelia hirsutula var. davyi Y. W. Winblad 1941-6-24 Humboldt Between Garberville and Hartsook Comment
  POM161906  Grindelia stricta var. stricta Joseph P. Tracy 1921-7-10 5856 Humboldt Big Lagoon. 6 Comment
  RSA134602  Grindelia stricta var. stricta Percy C. Everett, E. K. Balls 1959-10-25 23967 Humboldt 6 miles NE of Eureka, U.S. Hwy101. Comment
  RSA93069  Grindelia stricta var. stricta J. T. Howell 1937-7-31 13720 Humboldt Salt marsh bordering Humboldt Bay at Arcata. Comment
  SEINET10614320 Image available Grindelia stricta var. stricta J. A. Moore, Julian A. Steyermark 1931-8-9 Moore 3686 Humboldt Salt meadows along canal, Eureka. Comment
  RSA254793  Hackelia bella D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  HSC99088  Helenium bigelovii Cara Witte 2008-8-6 1010 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  OBI16347  Helenium bigelovii Joseph P. Tracy 1950-7-16 11686 Humboldt Parks Place, 2 mi N of Trinidad Comment
  JEPS35541  Helenium puberulum W. L. Jepson 1936-8-13 17892 Humboldt Philipsville S. Fk. Eel River Comment
  UC166088  Helenium puberulum Joseph P. Tracy 1911-8-27 3534 Humboldt Ryan's Slough Northern Coast Region, Region about Humboldt Bay 0 Comment
  UC559947  Hemitomes congestum V. Rattan 1878-1 Humboldt Comment
  HSC44160  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1977-6-19 3495 Humboldt Above Alder Springs 1585 Comment
  SEINET10313942  Hemizonia congesta Unknown 1966-6-15 2091 Humboldt Humboldt County Comment
  CAS-BOT-BC309995  Hemizonia congesta subsp. tracyi Carl B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  CAS-BOT-BC310000  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-23 4805 Humboldt Little Van Duzen River Comment
  UC1223087  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1950-6-25 18902 Humboldt 3 mi s Burr Valley 1158 Comment
  UC495621  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1932-8-21 10364 Humboldt Chaparral Mt., Three Cabins 457 Comment
  HSC99511  Heracleum maximum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 173 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
  UC169086 Image available Hesperevax sparsiflora var. brevifolia Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3639 Humboldt Bucksport; Humboldt Bay 0 Comment
  HSC13055  Hesperocyparis macrocarpa C. E. Fellows 1970-12-7 368 Humboldt HSC Campus, Arcata Comment
  UC1222144  Hesperolinon micranthum Joseph P. Tracy 1950-7-6 18994 Humboldt 3 mi s Burr Valley (on the Albee Road); Buck Mountain 1158 Comment
  HSC40850  Heterocodon rariflorum Thomas W. Nelson 1976-7-9 3000 Humboldt Along W side of ridge S of E peak of Mount Lassic group. 1524 Comment
  HSC5313  Heterotheca oregona D. E. Anderson 1963-9-21 2837 Humboldt 1/2 mi. E of Willow Creek Comment
  CAS-BOT-BC311075  Heterotheca oregona var. rudis Doris K. Kildale 1926-8-8 2478 Humboldt Dyerville Bridge 45 Comment
  CAS-BOT-BC420725  Heuchera micrantha var. diversifolia Lincoln Constance; Reed C. Rollins 1942-5-12 2883 Humboldt Mouth of Bluff Creek, 6 miles NE of Weitchpec 152 Comment
  HSC48848  Hieracium albiflorum Brad Klipfel 1973-7-15 204 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1199467  Hieracium albiflorum Joseph P. Tracy 1933-7-25 12831 Humboldt Horse Mountain 1432 Comment
  UC127712  Hieracium albiflorum Harley P. Chandler Jun 1901 1496 Humboldt Klamath River North Coast Ranges 426 Comment
  UC1199469  Hieracium nudicaule Joseph P. Tracy 1929-7-4 8629 Humboldt French Camp Ridge 1066 Comment
  HSC98079  Hieracium scouleri Cara Witte 2007-7-3 407 Humboldt White Oak Opening 1242 Comment
  SEINET270546  Hierochloe occidentalis Richard R. Halse 1996-3-26 5020 Humboldt Redwood National Park ; At junction of Bald Hills Road and Holter Ridge Bike Route 11 miles southeast of US Highway 101 708 Comment
  UC526828  Hierochloe occidentalis Joseph P. Tracy 1926-2-28 7382 Humboldt Willow Creek Canyon Northern Coast Ranges 304 Comment
  HSC5261  Holcus lanatus John Warner Hosking 1966-8-5 Humboldt Near BSA, Humboldt State College campus, Arcata. Comment
  SD40095  Holcus lanatus Edith A. Purer 1932-7-30 4672 Humboldt South of Orick Comment
  SEINET200832 Image available Holcus lanatus J. P. Tracy 1901-7-24 1218 Humboldt Immediate vicinity of Eureka 0 Comment
  UCD84961  Holcus lanatus Henry M. Pollard 1945-8-24 7892 Humboldt Klamath River Canyon. Between Orleans and Camp Creek. Comment
  HSC57434  Holodiscus discolor G. L. Clifton, Griswold 1979-7-26 10223 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  OBI10161  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt North Coast Range, Wildcat Ridge, 6 3/10 mi S of Ferndale 305 Comment
  RSA183531  Holodiscus discolor D. E. Anderson 1963-9-1 2806 Humboldt Near Kneeland. 732 Comment
  UC1198702  Holodiscus discolor J. P. Tracy 1901-6-16 1150 Humboldt immediate vicinity of Eureka 0 Comment
  UC666849  Holodiscus discolor Joseph P. Tracy 1935-7-14 14061 Humboldt Horse Mountain 1066 Comment
  CAS-BOT-BC536629  Horkelia californica Paul F. Covel 1937-7-13 800 Humboldt Cape Fortuna Comment
  UC154516  Horkelia tridentata subsp. flavescens Harley P. Chandler June 1901 1295 Humboldt Hupa Indian Reserve North Coast Ranges 1066 Comment
  HSC76241  Horkelia tridentata var. flavescens Denis Kearns 1981-6-24 9 Humboldt Near Cedar Camp 1219 Comment
  HSC41253  Hosackia oblongifolia Brad Klipfel 1974-6-25 443 Humboldt Horse Mtn., near the creek just below the mine Comment
  HSC70487  Hosackia oblongifolia var. oblongifolia Gail Newton 1980-7-20 1616 Humboldt Near Bell Swamps 1426 Comment
  SEINET957089  Hosackia rosea J. P. Tracy 1949-1 18321 Humboldt Undergrowth in woods near Boynton Prairie 12 miles southeast of Arcata; abundant especially in Tan Oak areas spreading by rootstocks. Comment
  HSC39777  Hydrocotyle ranunculoides Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  UCSB22187  Hydrocotyle ranunculoides Keefe, Joseph 1967-7-8 Humboldt East side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka 6 Comment
  UC169025  Hydrophyllum tenuipes W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  CAS-BOT-BC400792  Hypericum anagalloides Henry M. Pollard 1948-7-18 s.n. Humboldt Area near Orleans Comment
  CAS-BOT-BC400794  Hypericum anagalloides Doris K. Kildale 1928-7-29 5933 Humboldt Kinman Pond. Bear River Ridge Comment
  SEINET10720053  Hypericum anagalloides Lincoln Constance 1934-6-25 Constance 922 Humboldt Bull Creek Region. Engelwood, 4 miles N of Dyerville and north of the boundary of Humboldt Redeood Park on Redwood Highway. Comment
  UC1103552  Hypericum anagalloides Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges, Christmas Prairie 914 Comment
  RSA12422  Hypericum androsaemum C. B. Wolf 1934-7-2 5874 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC39801  Hypochaeris radicata Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  HSC40958  Hypochaeris radicata Linda M. Barker 1976-9-3 1692 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UCD128252  Ilex aquifolium Linda M. Barker 1976-6-14 1594 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC206849  Iliamna latibracteata Carl Purdy 1938-8-1 s.n. Humboldt Willow Creek Comment
  HSC35755  Iliamna latibracteata Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1999 Humboldt Bald Hills Rd., just W of French Camp. Comment
  JEPS67378 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  UC902182 Image available Iliamna latibracteata Joseph P. Tracy 1949-9-1 18535 Humboldt Along Trinity Highway Willow Creek Canyon. 762 Comment
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Feb 27 2012
  RSA67626  Iris Philip A. Munz 1951-7-15 16546 Humboldt dry slopes in woods, about 3 miles northeast of Willow Creek Comment
  UC1196376  Iris macrosiphon Joseph P. Tracy 1935-7-14 14067 Humboldt Grouse Mountain 1524 Comment
  JEPS86127  Iris macrosiphon Wayne Roderick 1966-5-5 Humboldt ca 5 mi n Bridgeville 609 Comment
  HSC65226  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 437 Humboldt Ishi Pishi Rd., 1.2 mi. S of jct. with FS Rd. 11N11, NW side of road, Orleans 271 Comment
  SEINET3875949  Iris tenax subsp. klamathensis J. P. Smith, John Sawyer; Jane Cole 1978-5-21 9925 Humboldt Ishi Pishi Road, 2.5 miles from its junction with State Route 36 in Orleans, California.; 0 213 Comment
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May 31 2018
  HSC67518  Iris tenuissima J. P. Smith, J. O. Sawyer 1976-5-2 8620 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  UC1046540  Iris tenuissima R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3414 Humboldt ridge between Mad River and Redwood Creek (about Snow Camp, Bald Mountain); Bald Mountain, Snow Camp 1432 Comment
  HSC97581  Iris tenuissima subsp. tenuissima Cara Witte 2007-5-29 131 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  UC503070  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  CAS-BOT-BC340152  Jaumea carnosa Malcom A. Nobs; S. Galen Smith 1949-8-3 1173 Humboldt Around Fields Landing Comment
  UC479412  Jaumea carnosa Marcus E. Jones, A. M. 1931-7-16 29118 Humboldt Arcata Comment
  CAS-BOT-BC340154  Jaumea carnosa C. C. Harris; S. K. Harris 1939-8-26 s.n. Humboldt South shore of Humboldt Bay Comment
  POM254124  Jaumea carnosa C. C. Harris, S. K. Harris 1939-8-26 994 Humboldt South shore of Humboldt Bay. Comment
  RSA181881  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt Mouth of Eel River. 3 Comment
  HSC102931  Juncus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 934 Humboldt Patterson Meadows 1555 Comment
  RSA168844  Juncus articulatus Joseph P. Tracy 1938-8-14 16114 Humboldt Hillside west of mouth of South Fork. Trinity River Valley , near the South Fork 183 Comment
  HSC95378  Juncus bolanderi Andrea Pickart 2002-8-7 199 Humboldt Arcata bottoms along Lanphere Rd. near end 20 Comment
  UC2494  Juncus bolanderi H. N. Bolander June 1867 6584 Humboldt near Elk Ridge Comment
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Jul 31 2010
  HSC40945  Juncus bufonius Linda M. Barker 1976-6-1 1551 Humboldt 3 mi. W of Arcata Comment
  UCD141425  Juncus covillei Linda M. Barker 1976-6-22 1623 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. 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
  HSC98602  Juncus effusus Cara Witte 2007-6-28 383 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  UC184085  Juncus effusus subsp. pacificus Joseph P. Tracy 1906-8-18 2548 Humboldt Eureka Northern Coast Region 0 Comment
  UC421740  Juncus hesperius Henry Melde 1902-2-8 Humboldt Eureka Comment
  RSA730737  Juncus laccatus P. F. Zika 2007-7-30 23330 Humboldt Above E side of Route 101, at high point between Stone and Big Lagoons, (NCo, North Coast). 80 Comment
  HSC58113  Juncus mertensianus G. L. Clifton, Griswold 1979-8-1 12069 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC58005  Juncus parryi G. L. Clifton, Griswold 1979-7-31 11791 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  JEPS63886  Juncus patens W. L. Jepson 1936-8-11 17871 Humboldt Phillipsville South Fork Eel River Comment
  HSC99032  Juncus patens Cara Witte 2008-7-14 896 Humboldt Cold Spring. 0.5 mi. S of Titlow Hill. 1440 Comment
  CAS-BOT-BC235886  Keckiella corymbosa Doris K. Kildale 1927-8-7 3862 Humboldt Kneeland Prairie 762 Comment
  RSA79773  Keckiella corymbosa F. W. Peirson 1926-7-13 7060 Humboldt Mad River, near Blue Lake. Comment
  UC673097  Kelloggia galioides Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16662 Humboldt Friday Ridge; Grouse Mt. 1280 Comment
  UC922033  Koeleria macrantha Joseph P. Tracy 1936-8-2 15072 Humboldt French Camp Ridge 1066 Comment
  HSC5894  Lactuca saligna R. I. Bonn 1965-10-1 Humboldt 2 mi. N of Bridgeville on May Ranch 701 Comment
  UC129575  Lasthenia californica subsp. californica Harley P. Chandler May 1901 1155 Humboldt North Coast Ranges, Humboldt Bay 3 Comment
  UC582759  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UCD106195  Lathyrus annuus W. A. Williams 1951-6-14 s.n. Humboldt 5 miles S of Capetown. Comment
  JEPS82141  Lathyrus biflorus Thomas W. Nelson and Tom Jimerson 1980-8-4 6233 Humboldt ne slope Red Mountain; North Coast Ranges, Blocksburg Quad. 1371 Comment
  UC1222396  Lathyrus glandulosus Joseph P. Tracy 1950-6-29 18934 Humboldt 3 mi e Kneeland (on Butter Valley Road) Comment
  POM277522  Lathyrus littoralis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, Trinidad. 12 Comment
  UCD106376  Lathyrus littoralis Linda M. Barker 1976-5-13 1489 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCSB15805  Lathyrus littoralis Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC162839  Lathyrus littoralis Joseph P. Tracy 1906-5-13 2451 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC1199075  Lathyrus polyphyllus Joseph P. Tracy 1935-7-22 14126 Humboldt Klamath Mountains, Trinity Summit, near Corral Prairie. Comment
  SEINET202727  Lathyrus polyphyllus Joseph Tracy 1948-7-11 18074 Humboldt Willow Creek Canyon along Trinity Highway Comment
  UC15357  Lathyrus torreyi H. N. Bolander 1867-1 6506 Humboldt Shelter Cove Comment
  HSC39197  Lathyrus torreyi D. E. Anderson, J. P. Smith 1971-7-6 - 1328 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  UC931335  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-8 19093 Humboldt 1 mi w Willow Creek (near Highway 299) Comment
  HSC5911  Layia carnosa J. W. Johnson 1962-4-18 1272 Humboldt Arcata, between the Mad River mouth and the Hunt Farm, Samoa Peninsula. Comment
  JEPS40021  Layia gaillardioides W. L. Jepson 1902-8-3 2140 Humboldt Bear River Range to Petrolia Comment
  UC1103517  Lemna turionifera Joseph P. Tracy 1915-9-5 4667 Humboldt between Buckspot and Elk River (at Eureka); Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC339130  Leontodon saxatilis subsp. saxatilis Alice Eastwood 1923-8-16 12340 Humboldt Carlotta Comment
  HSC5926  Leontodon saxatilis subsp. saxatilis S. R. Johnson 1965-3-15 12 Humboldt 1 mi. N of Luffenholtz Beach Comment
  UC1199163  Lepidium densiflorum Joseph P. Tracy 1938-7-15 16066 Humboldt Mouth of Eel River 3 Comment
  CAS-BOT-BC89075  Lepidium didymum K. L. Chambers; Ron Tyrl 1969-5-25 2927 Humboldt Strong's Station ca. 6.5 mile east of Carlotta on Highway 36. Comment
  UC1199168  Lepidium virginicum Joseph P. Tracy 1900-9-9 959 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  HSC35964  Leptosiphon androsaceus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1948 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  HSC96226  Leptosiphon bolanderi J. McIntire, S. Lyon 2005-6-24 16 Humboldt FS NF1 1375 Comment
  UC176859  Lessingia nemaclada Joseph P. Tracy 1911-7-8 3445 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC581778  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 670 Comment
  HSC36171  Lewisia cotyledon var. howellii J. P. Smith 1973-5-4 6367 Humboldt 2 mi. S of Somes Bar on Hwy. 96 Comment
  HSC98681  Lewisia nevadensis Cara Witte 2008-7-11 879 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UCD64628  Leymus mollis Linda M. Barker 1976-6-1 1563 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  POM160891  Leymus mollis subsp. mollis Joseph P. Tracy 1923-5-19 6212 Humboldt Trinidad 3 Comment
  RSA331970  Leymus mollis subsp. mollis Dave Kelly, Walter Wisura 1985-7-28 4062 Humboldt Outer sand dunes near Manilla, Samoa Peninsula near Eureka Comment
  UCD87707  Leymus triticoides A. H. Murphy 1951-6-13 63 Humboldt Eel River at Fort Seward. Comment
  UC642251  Ligusticum apiifolium Joseph P. Tracy 1930-8-3 9153 Humboldt McClellan Mt. 762 Comment
  HSC56332  Ligusticum grayi Overton, Butler 1979-8-2 12702 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC95380  Lilaeopsis occidentalis Andrea Pickart 2002-7-9 170 Humboldt Bracut Marsh at freshwater outlet into salt marsh 10 Comment
  SEINET12057698  Lilium F. H. Utech 1977-6-30 s.n. Humboldt Redwoods National Park Comment
  UC55890  Lilium columbianum J. P. Tracy 1902-7-4 1755 Humboldt immediate vicinity Eureka (near Ryan's Slough Hill) 0 Comment
  CAS-BOT-BC508393  Lilium columbianum Doris K. Kildale 1927-7-10 3739 Humboldt Gans Prairie, Bald Hills Comment
  CAS-BOT-BC508403  Lilium columbianum A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt A few miles north of Arcata Comment
  SEINET12047013  Lilium columbianum F. H. Utech 1978-1 78 -260 Humboldt ca 2.5 km S of Del Norte/Humboldt County line on US 101 Comment
  UCD139729  Lilium columbianum H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad on Redwood Highway. Comment
  CAS-BOT-BC130685  Lilium occidentale A. M. Vollmer; L. Beane 1953-7-1 118 Humboldt unspecified Comment
  RSA130332  Lilium occidentale Albert M. Vollmer, L. Beane 1953-07 118 Humboldt Humboldt County Comment
  SEINET3992215  Lilium pardalinum Unknown 1948-9-5 18196 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1372 Comment
  HSC65208  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau 1979-7-17 676 Humboldt Near Clear Lake 1494 Comment
  UC1198231  Lilium rubescens Joseph P. Tracy 1911-7-7 3419 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek, near the summit) 1219 Comment
  HSC15789  Limnanthes douglasii Francis Winter 1960-5-7 Humboldt 3 mi. NE of Redwood Creek Ranch. 610 Comment
  UCR160588  Limnobium laevigatum Gordon Leppig, Tony LaBanca 2003-3-13 1823 Humboldt Alder Grove [Rd.] Pond, Arcata 9 Comment
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Jul 6 2015
  HSC90320  Limonium californicum Jean Hanson 1980-6-22 102 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  UC1198593  Linanthus androsaceus Joseph P. Tracy 1922-6-18 6093 Humboldt Head of Middle Yager Creek Northern Coast Ranges 762 Comment
  UC52737  Linanthus androsaceus W. C. Blasdale 1896-6-6 Humboldt Graham's Comment
  SBBG66372  Linaria vulgaris S. W. Hutchinson -Jun-1925 Humboldt beyond Eureka Comment
  UC1239560  Linnaea borealis var. longiflora Joseph P. Tracy 1936-6-28 15018 Humboldt Bald Mountain at Lake Prairie; Bald Mountain at Lake Prairie 1066 Comment
  HSC59068  Linum bienne Thomas Wood 1979-5-18 193 Humboldt Arcata, adjacent and N of 2900 Janes Rd. 9 Comment
  POM301291  Listera caurina H. E. Parks, Joseph P. Tracy 1949-6-25 11667 Humboldt Trinity Summit, near Box Camp 1524 Comment
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Jul 13 2018
  UC1193053  Lithocarpus densiflorus P. Zinke 1950-8-3 146 Humboldt 3 mi s Harris Post Office 914 Comment
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Nov 28 2009
  SACT002878  Lithocarpus densiflorus D. McIntosh, L. Sanny 1959-3-1 Humboldt Densely covered hillside Comment
  HSC82106  Lithophragma campanulatum Thomas W. Nelson, Jane P. Nelson 1980-5-25 5259 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC40822  Lithophragma campanulatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2850 Humboldt S of spring along rd. to Goat Hill 1646 Comment
  HSC44409  Lithospermum californicum R. York 1978-5-6 161 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  HSC89574  Lobularia maritima M. Roantree 1985-5-15 48 Humboldt E side of Trinidad Head, on slope above Trinidad Bay beach Comment
  JEPS20910  Logfia filaginoides Joseph P. Tracy 1927-5-22 8072 Humboldt Kneeland Prairie 762 Comment
  JEPS72927  Lolium multiflorum Lincoln Constance 1934-5-27 699 Humboldt gravel bar of South Fork Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  UC1103482  Lolium perenne Joseph P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  UCD66464  Lolium perenne Al Murphy 1948-10-1 Humboldt Ft. Seward. Comment
  UC50698  Lolium temulentum Joseph Burtt Davy 1899-6-20 5690 Humboldt Hupa Valley Comment
  BLMAR646  Lomatium Jennifer Wheeler 2011-5-27 646 Humboldt Lacks Creek, Oak woodland of Stormy Saddle 1097 Comment
  HSC73721  Lomatium californicum M. A. Baker 1980-7-15 2954 Humboldt Near Whiting Ridge. 1341 Comment
  UC1197164  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1942-6-23 17229 Humboldt 1 mi. w. Box Camp (on summit of ridge on Hoopa trail, Trinity Summit); Trinity Summit 1219 Comment
  HSC24400  Lomatium dasycarpum subsp. dasycarpum J. O. Sawyer 1970-6-24 2223 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  SEINET189441  Lomatium dissectum Lincoln Constance, Alan A. Beetle; Joseph P. Tracy 1940-5-17 2617 Humboldt Lower slopes of Buck Mountain; near Eureka. 792 Comment
  POM32369  Lomatium dissectum var. dissectum Lincoln Constance, Alan Beetle, Joseph Tracy 1940-5-17 2617 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  HSC56003  Lomatium macrocarpum Overton, Butler 1979-7-31 11454 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC642329  Lomatium macrocarpum Joseph P. Tracy 1933-7-25 12894 Humboldt Grouse Mt. 1524 Comment
  HSC96231  Lomatium tracyi Sara March, Gillian Levy 2005-6-24 13 Humboldt Radio Tower on Horse Mtn. 1509 Comment
  JEPS15822  Lomatium tracyi Joseph P. Tracy 1926-6-20 7610 Humboldt Northern Coast Ranges, Horse Mt. 1524 Comment
  UC1463743  Lomatium tracyi Barbara Kelly 1978-5-1 590 Humboldt 1/4 mi from Horse Mountain Road, 1/2 mi below turnoff to summit, near end of unused gravel road. Comment
  HSC37195  Lomatium utriculatum Barbara Kelly 1976-5-13 251 Humboldt Below road at Kneeland Airport Comment
  JEPS14215  Lomatium utriculatum Joseph P. Tracy 1930-6-29 8814 Humboldt lower foothills of n.w. slope Buck Mt. 762 Comment
  CAS-BOT-BC240476  Lonicera hispidula Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  HSC3955  Lonicera hispidula var. vacillans J. Allen DeCou 1899-6-4 Humboldt Comment
  HSC79550  Lonicera hispidula var. vacillans Kenneth Clark 1980-6-14 669 Humboldt On western slope above Dead Man's Gulch. 145 Comment
  HSC1873  Lotus aboriginus H. E. Parks Jul 1932 Humboldt Bishop Pine Lodge, Trinidad 61 Comment
  POM16960  Lotus crassifolius Joseph P. Tracy 1905-9-3 2389 Humboldt Immediate vicinity of Eureka. Comment
  JEPS55511  Lotus humistratus W. L. Jepson 1902-6-20 1897 Humboldt Ft. Seward Ranch Ridge (= Mail Ridge) Mail Ridge 1219 Comment
  UC1223424  Lotus pinnatus Joseph P. Tracy 1942-6-15 17134 Humboldt Englewood Prairie Comment
  UC201389  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-5 5015 Humboldt White Thorne Valley Northern Coast Ranges 304 Comment
  RSA32848  Lotus unifoliolatus A. A. Heller 1923-7-9 13778 Humboldt Near Blue Lake, 5 miles from Arcata. Comment
  HSC57056  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-24 9714 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC43172  Lotus unifoliolatus var. unifoliolatus R. Sutherland 1976-8-13 6 .13876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  UC314622  Ludwigia palustris Joseph P. Tracy 1926-8-12 7765 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 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
  HSC70698  Luina hypoleuca Gail Newton 1980-7-15 1554 Humboldt Near Sims Mtn. 1311 Comment
  HSC74666  Luina hypoleuca Gail Newton 1981-8-7 2423 Humboldt Near Bug Creek Butte 1244 Comment
  UC198627  Luina hypoleuca Joseph P. Tracy 1917-9-2 4839 Humboldt Grouse Mountain Northern Coast Ranges 1524 Comment
  HSC98035  Luina hypoleuca Cara Witte 2007-7-17 535 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1368 Comment
  RSA751818  Lupinus Robert F. Thorne 1957-9-3 19015 Humboldt Little River Beach, few miles S of Trinidad. Comment
  UC503010  Lupinus affinis Joseph P. Tracy 1932-5-1 9877 Humboldt vicinity Garberville; Northern Coast Ranges, vicinity of Garberville 121 Comment
  UC502997  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-7-15 10586 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit, e of Corral Prairie 1828 Comment
  UC1223267  Lupinus albicaulis var. shastensis Joseph P. Tracy 1949-6-25 18340 Humboldt at Big Hill on road w Box Camp (w slope of summit Trinity Summit); Trinity Summit, at Big Hill Comment
  SEINET5327650  Lupinus arboreus J. Tracy 1910-5-8 3134 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC61195  Lupinus latifolius Jimerson, J. Pageau 1979-5-24 475 Humboldt Near Orleans 226 Comment
  RSA161252  Lupinus latifolius subsp. latifolius Peter H. Raven, R. Snow 1958-7-20 13645 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  HSC95097  Lupinus littoralis Andrea Pickart 2002-7-3 151 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  UC150118  Lupinus nanus Harley P. Chandler June, 1901 1314 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC39785  Lupinus rivularis Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC59681  Lupinus rivularis George Kirn 1977-10-12 Humboldt South shore Little River, 1/2 mile from mouth 8 Comment
  SEINET10488870  Lupinus rivularis Donald E. Bright 1962-6-12 Bright 281 Humboldt Redwood and douglas fir woods, bald hill road, 5 mi e of orick. Comment
  RSA104397  Lupinus tracyi Joseph P. Tracy 1932-7-15 10598 Humboldt Corral Prairie, Trinity Summit Comment
  HSC27555  Luzula comosa J. D. Ackerman 1973-3-27 36 Humboldt 1.5 mi. N of Manila Comment
  HSC75476  Luzula comosa J. O. Sawyer 1980-7-18 3623 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC67152  Luzula comosa J. P. Smith, Steve Selva 1970-6-30 4144 Humboldt Comment
  UC249749  Luzula macrantha Joseph P. Tracy 1923-6-3 6257 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  HSC45017  Luzula multiflora subsp. multiflora R. Sutherland 1978-4-24 4 .24478 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  HSC83992  Luzula parviflora L. P. Janeway 1983-5-1 253 Humboldt Along dirt rd. E of HSU water tank 61 Comment
  RSA69739  Luzula parviflora F. W. Peirson 1923-7-11 3673 Humboldt About 3 miles north of Orick. Comment
  HSC906  Lycopodiella inundata D. E. Anderson 1961-9-13 1803 Humboldt Big Lagon Bog, Big Lagoon County Park Comment
  SBBG56351  Lycopodium clavatum H. E. and W. K. Parks 1932-7-30 1132 Humboldt Camp 21, Hammond Lumber Co, Trinidad 152 Comment
  SEINET179615 Image available Lycopodium clavatum H. E. Parks, WK Parks 1932-7-30 1132 Humboldt 'Camp 21' Hammond Lumber Company Trinidad Comment
  UC1239796  Lycopodium clavatum Joseph P. Tracy 1932-8-13 10341 Humboldt in woods around swamp 3 mi e Trinidad; Northern Coast Region 152 Comment
  HSC3242  Lysichiton americanus J. W. Johnson 1962-2-26 1161 Humboldt Along Lanphere Lane, Samoa Peninsula Comment
  UC668292  Lythrum hyssopifolia Joseph P. Tracy 1938-7-5 16011 Humboldt Carlotta, by old Strong's District School House, 5 mi e of town Carlotta 45 Comment
  HSC101056  Lythrum salicaria Sydney Carothers 1997-8-19 207 Humboldt Hwy. 36, north end of dividerless road; private property 732 Comment
  UC581811  Madia elegans Joseph P. Tracy 1934-8-24 13599 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC344357  Madia exigua L. R. Abrams 1916-7-11 5995 Humboldt Between Blocksberg & Bridgeville Comment
  HSC73178  Madia exigua M. A. Baker 1980-5-18 1336 Humboldt Near Black Mtn. 792 Comment
  UC127612  Madia exigua Harley P. Chandler June, 1901 1330 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC129391  Madia exigua Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5466 Humboldt near Elk Prairie Comment
  CAS-BOT-BC343021  Madia gracilis Ira L. Wiggins 1930-7-11 4679 Humboldt Near Samoa Comment
  JEPS7505  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC127609  Madia gracilis Mrs. M. H. Manning June, 1902 Humboldt Hupa Comment
  JEPS40333  Madia gracilis Lincoln Constance 1934-5-24 625 Humboldt s slope Lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  RSA293191  Madia gracilis subsp. gracilis Thomas W. Nelson, James Nelson 1976-5-30 2615 Humboldt McKeown Ranch north of Dinsmore. Comment
  SEINET11810616  Madia gracilis subsp. pilosa J. P. Tracy 1950-1 19026 Humboldt Sproston's Place, 3 mi S of Burr Valley 1067 Comment
  HSC40379  Madia sativa Linda M. Barker 1976-6-14 1592 Humboldt 3 mi. W of Arcata Comment
  HSC78758  Madia sativa L. P. Janeway, Paul Wilson 1984-5-25 816 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  UC175196  Madia sativa Joseph P. Tracy 1913-6-13 4101 Humboldt opposite Buck Mountain (valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  RSA24302  Mahonia nervosa C. B. Wolf 1941-2-25 9961 Humboldt 9 mi. e. of Orick on rd. to Weitchpec. 610 Comment
  HSC15594  Maianthemum dilatatum Harvey Doerksen 1962-5-22 27 Humboldt Azalea Reserve State Park near Mad River Comment
  UC1134631  Maianthemum dilatatum R. Stahelin 1933-5-17 Humboldt Arcata City Park Eureka Quad., Arcata City Park Comment
  UCD139044  Maianthemum dilatatum Linda M. Barker 1976-5-13 1484 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC508508  Maianthemum dilatatum M. Louise Hutchinson 1913-4-1 s.n. Humboldt Eureka Comment
  CHSC24724  Maianthemum racemosum G. Strang 1976-4-10 7 Humboldt 1.2 mi. e of Hydesville, s side of highway. 45 Comment
  HSC15656  Maianthemum racemosum subsp. amplexicaule Harvey Doerksen 1962-5-4 3 Humboldt W of Korbel, S side of Mad River Comment
  HSC42005  Maianthemum racemosum subsp. amplexicaule Tom Duebendorfer 1977-5-15 52 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC34159  Maianthemum stellatum Linda M. Barker 1974-5-11 177 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC70326  Maianthemum stellatum M. A. Baker 1980-6-8 1881 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC347412  Malacothrix floccifera Marcus E. Jones 1931-7-16 29095 Humboldt Junction, East of Arcata Comment
  CAS-BOT-BC347414  Malacothrix floccifera L. R. Abrams 1916-7-11 6063 Humboldt Mouth of Grizzly Creek between Bridgeville and Fortuna on Van Duzon [Duzen] River Comment
  UC481090  Malacothrix floccifera P. E. Goddard 1906-6 662 Humboldt Lasseck Peak Comment
  UC565510  Malacothrix floccifera H. L. Mason 1928-7-14 4906 Humboldt near Garberville; East Fork of Eel River Comment
  CAS-BOT-BC140140  Malus fusca Doris K. Kildale 1928-9-10 6715 Humboldt Big Lagoon - south end of Comment
  UC1052474  Malus fusca H. E. Parks Apr 1933 4352 Humboldt Spruce Cove; Trinidad Comment
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Jun 17 2020
  UC14182  Malus fusca W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  UC154238  Malus fusca J. P. Tracy 1906-11-4 2553 Humboldt immediate vicinity Eureka 0 Comment
  UC668145  Malva neglecta Joseph P. Tracy 1937-9-6 15320 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC15993  Malva nicaeensis Paul Shields 1955-6-3 Humboldt HSC campus Comment
  CHSC10136  Marah oregana J. W. Johnson 1962-3-31 1412 Humboldt Along the Lanphere Lane, Samoa Peninsula, Arcata. Comment
  UC1197424  Medicago lupulina Joseph P. Tracy 1911-7-10 3493 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1103429  Medicago polymorpha Joseph P. Tracy 1934-3-25 13169 Humboldt Blue Slide Van Duzen River 91 Comment
  UC1137002  Melica aristata August L. Hormay 1932-5-12 Humboldt n Garberville (Redwood Hwy, Bull Creek Rd) Comment
  UCD86262  Melica aristata Joseph P. Tracy 1949-7-19 18374 Humboldt Grouse Mountain, at 'Friday Camp. 1219 Comment
  SEINET200335 Image available Melica californica var. nevadensis J. P. Tracy 1927-5-14 7999 Humboldt Trinity River Valley near the S Fork 183 Comment
  UC526920  Melica geyeri Joseph P. Tracy 1926-6-20 7650 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  HSC99070  Melica harfordii Cara Witte 2007-7-12 521 Humboldt Along Forest Service Road 5N10. 1.25 miles south of intersection with 5N41. 1283 Comment
  UC53675  Melica harfordii Jos. Burtt Davy 1899-6-19 5661 A Humboldt Hoopa Mt. Humboldt; Hoopa Mt. Comment
  UCD87523  Melica harfordii P. B. Kennedy 1916-6-1 s.n. Humboldt Eureka. Comment
  UC34139  Melica spectabilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5827 Humboldt Trinity Summit Comment
  HSC75451  Melica subulata J. O. Sawyer 1980-7-18 3588 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA10101  Melica subulata Joseph P. Tracy 1933-5-28 12416 Humboldt Carlotta. 61 Comment
  HSC10375  Melica torreyana A. H. Murphy 1951-4-18 20 Humboldt Ft. Seward. 183 Comment
  HSC81704  Mentha pulegium Thomas W. Nelson, Jane P. Nelson 1980-8-12 6236 Humboldt Logging roads S of Lundbar Hills 61 Comment
  HSC37227  Menyanthes trifoliata Anonymous 1976-5-14 Humboldt NW of McClellan Mtn. Comment
  HSC28256  Menziesia ferruginea subsp. ferruginea Gary S. Lester 1973-12-2 59 Humboldt Humboldt State University Campus, Arcata Comment
  HSC7850  Menziesia ferruginea subsp. ferruginea F. Morrell 1949-4-22 11 Humboldt Back Humboldt State University fish hatchery Comment
  RSA167437  Micropus californicus Joseph P. Tracy 1947-5-10 17681 Humboldt Near Briceland Comment
  SEINET7016935  Micropus californicus Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  HSC32925  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1973-5-28 968 Humboldt McKeown Ranch N of Dinsmore Comment
  UC164797  Microseris bigelovii Joseph P. Tracy 1911-5-27 3190 Humboldt Humboldt Bay Northern Coast Region Comment
  UC1223195  Microseris laciniata subsp. laciniata Joseph P. Tracy 1942-6-15 17152 Humboldt 1/2 mi ne Garberville (on the road to Harris) 304 Comment
  UC180173  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1914-7-5 4564 Humboldt High Prairie Bald Mountain; Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  CAS-BOT-BC349240  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  HSC103080  Microseris nutans Sydney Carothers 2014-6-12 14 Humboldt Six Rivers National Forest, Lassics Botanical Area, north slope Red Lassic 1712 Comment
  UC582733  Microseris nutans Joseph P. Tracy 1930-7-16 8901 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC39233  Microseris nutans D. E. Anderson, J. P. Smith 1971-7-6 - 1275 Humboldt Horse Mtn. Comment
  HSC98810  Microsteris gracilis Cara Witte 2007-5-21 56 Humboldt Board Camp Mountain. 1/2 mile south of intersection with 4N38 and National Forest 1. 1427 Comment
  HSC26809  Mimulus alsinoides Thomas W. Nelson 1971-4-24 401 Humboldt Overlooking the East Fork of Willow Creek Comment
  HSC22023  Mimulus aurantiacus var. aurantiacus Thomas W. Nelson 1970-10-17 239 Humboldt Mouth of Prairie Creek Comment
  HSC35820  Mimulus aurantiacus var. aurantiacus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1914 Humboldt Beside Hwy. 36, 1 mi. W of Grizzley Creek Comment
  JEPS17993  Mimulus aurantiacus var. aurantiacus George B. Rossbach 1955-6-10 504 Humboldt 2 mi n Stephens Redwood Grove (Route 101); South Fork of Eel River Comment
  POM257751  Mimulus aurantiacus var. aurantiacus C. L. Hitchcock, J. S. Martin 1939-7-14 5439 Humboldt Bluffs facing sea at Shelter cove Comment
  UC1193340  Mimulus aurantiacus var. aurantiacus K. Cuff 1950-10-9 126 Humboldt 1/2 mi ne Honeydew (Quad 28A4) 152 Comment
  UC677720  Mimulus aurantiacus var. aurantiacus C. C. and S. K. Harris 1936-6-9 681 Humboldt above Carlotta 60 Comment
  JEPS28968  Mimulus breweri Joseph T. Gregory 1935-7-28 792 Humboldt head Devil's Hole; Trinity Summit 1828 Comment
  UC1196777  Mimulus cardinalis Joseph P. Tracy 1921-9-4 5955 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC20704  Mimulus cardinalis Paul Shields 1955-8-12 Humboldt 1/2 mi. N of Miranda Comment
  UC1196792  Mimulus douglasii Joseph P. Tracy 1927-4-10 7892 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA249331  Mimulus guttatus D. E. Anderson, Thomas W. Nelson, S Dowty 1972-6-13 5563 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  RSA454335  Mimulus guttatus R. S. Woglum 1938-8-28 2044 -A Humboldt Grounds of Trinidad State Park, south of Trinidad. (northcentral-coastal Humboldt) Comment
  HSC70317  Mimulus guttatus subsp. micranthus M. A. Baker 1980-6-7 1868 Humboldt Near Ammon Creek 732 Comment
  UC41887  Mimulus kelloggii W. C. Blasdale 1896-6-8 Humboldt near Pilot Ridge; ; Mad River near Deer Creek, Humboldt Co. Comment
  HSC73736  Mimulus moschatus M. A. Baker 1980-7-22 3090 Humboldt Near Grogan Hole. 1676 Comment
  HSC76220  Mimulus moschatus Overton, Butler 1979-7-24 9768 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  RSA447970  Mimulus moschatus E. S. Spalding, Williamson 1924-7-11 s.n. Humboldt Arcata. Comment
  HSC79337  Mimulus nanus var. nanus D. K. Imper 1982-6-30 Humboldt Near Goat Hill; adjacent to lakes Comment
  UC582597  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15597 Humboldt Hyampon Trail South Fork Mountain 1676 Comment
  UC169323  Mimulus nasutus Harley P. Chandler 1901-6-16 1509 Humboldt Somes Bar North Coast Ranges, Klamath River 426 Comment
  SEINET202012  Minuartia cismontana J. P. Tracy 1948-6-13 18055 Humboldt Ridge top near Harris 914 Comment
  CAS-BOT-BC388627  Minuartia douglasii Joseph P. Tracy 1930-6-21 8783 Humboldt Larrabee Valley 731 Comment
  UC1198338  Minuartia douglasii Joseph P. Tracy 1947-7-5 17793 Humboldt Mud Springs Trinity Summit 1371 Comment
  UC161040  Minuartia douglasii Ethel Tracy May 1905 Humboldt Harris Northern Coast Ranges 762 Comment
  RSA12523  Minuartia douglasii C. B. Wolf 1934-7-3 5913 Humboldt 21 miles from Orick on road to Weitchpec Road. Comment
  JEPS49686  Mitella caulescens Joseph P. Tracy 1923-6-24 6361 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC902016  Mitella diversifolia Joseph P. Tracy and Harold E. Parks 1949-6-5 11654 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC303175  Mitella ovalis Joseph P. Tracy 1923-6-20 6310 Humboldt White Thorn Valley Northern Coast Ranges (banks of creek) 304 Comment
  JEPS49691  Mitella ovalis Joseph P. Tracy 1923-4-8 6176 Humboldt Carlotta Northern Coast Ranges (along stream) 60 Comment
  CAS-BOT-BC433068  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt Klamath Mountains, Trinity Summit. Near Corral Prairie. 1524 Comment
  HSC99347  Modiola caroliniana Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  UC275345  Modiola caroliniana Joseph P. Tracy 1923-6-18 6288 Humboldt Northern Coast Ranges, Petrolia Petrolia Petrolia Petrolia; Northern Coast Ranges, Petrolia 60 Comment
  JEPS51151  Moehringia macrophylla Lincoln Constance 1934-6-19 908 Humboldt Grasshopper Peak, near summit; Bull Creek Region, South Fork Eel River 914 Comment
  HSC71820  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson 1980-6-27 5936 Humboldt Along old trail to pond above Alder Spring, 0.5 mi. N of campground 1555 Comment
  HSC96945  Moehringia macrophylla Ryoko Ito, Shauna McDonald 2007-6-13 8 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  HSC58155  Monardella odoratissima G. L. Clifton, Griswold 1979-8-2 12207 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC48699  Monardella odoratissima subsp. pallida Brad Klipfel 1973-7-31 239 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC220256  Monardella sheltonii Carl B. Wolf 1937-8-13 9223 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on New Road towards Trinity Summit 1219 Comment
  RSA0022806  Monardella villosa Carl B. Wolf 1937-8-13 9223 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC577342  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15428 Humboldt Vicinity Garberville 121 Comment
  UC577376  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15427 Humboldt Vicinity Garberville 121 Comment
  JEPS14830  Monotropa hypopitys W. L. Jepson 1902-6 1946 Humboldt woods near Green Pt. Ranch; Hupa Road Comment
  UC1223242  Montia chamissoi Joseph P. Tracy 1951-6-14 19415 Humboldt Snow Camp Meadows Comment
  CAS-BOT-BC444801  Montia diffusa Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2615 Humboldt Above Van Duzen River, 1 mile below Dinsmore's. 762 Comment
  UC162352  Montia fontana Joseph P. Tracy 1904-4-3 2004 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  HSC97935  Montia linearis Cara Witte 2007-5-21 63 Humboldt White Oak Opening. 1257 Comment
  CAS-BOT-BC445151  Montia parvifolia I. L. Wiggins 1932-7-7 5879 Humboldt Near Samoa Comment
  CAS-BOT-BC445163  Montia parvifolia Harley P. Chandler 1901-5-1 1261 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  POM203679  Montia parvifolia I. L. Wiggins 1932-7-7 5879 Humboldt Sand dunes near Samoa Comment
  UCD86803  Muhlenbergia mexicana Joseph P. Tracy 1916-9-5 4774 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  JEPS70790  Myosotis discolor W. L. Jepson 1936-8-17 17917 Humboldt 2 mi. s. Fields Landing Comment
  HSC47657  Myosotis sylvatica Sheila Logan 1978-4-10 180 Humboldt Arcata Community Forest, near PSW Experimental Lab Comment
  HSC77866  Myosurus minimus Rudy Becking 1982-11-13 Humboldt N Spit of Samoa Peninsula, near USCG Station Comment
  UC1197941  Myrica californica Joseph P. Tracy 1930-11-2 9246 Humboldt on Eel R. above S. Fork McCann; Northern Coast Ranges, , Eel R. 60 Comment
  JEPS109582  Myriophyllum hippuroides Dean W. Taylor 2002-9-12 18342 Humboldt Lake Prairie, remnant of the original bog vegetation on the eastern end of the lake 1097 Comment
  UCSB30594  Nasturtium officinale Edwards, David 1974-7-30 Humboldt West side of U.S. 101, ca. 30 yds. S. of 7th St. overpass, Arcata 15 Comment
  JEPS70235  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET200374  Navarretia divaricata var. vividior Joseph P. Tracy 1908-7-27 2721 Humboldt Valley of Van Duzen River, opposite Buck Mountain 305 Comment
  JEPS70319  Navarretia intertexta Joseph P. Tracy 1898-7-14 91 Humboldt near Hydesville Comment
  UC907815  Navarretia leucocephala subsp. minima Joseph P. Tracy 1928-6-24 8476 Humboldt between Middle and North Yager Creeks (East Ranch) 762 Comment
  UC1197896  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1933-7-9 12646 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  RSA528862  Navarretia sinistra R. Spellenberg 1990-7-10 10238 Humboldt Extreme E edge county, 11 air mi. E of Burnt Ranch at Buck Flat, at junction of USFS road 5N01 and USFS road 1, 12 mi. S of Berry Summit (on Calif. Highway 299) on USFS 1 1433 Comment
  JEPS70473  Navarretia squarrosa Joseph P. Tracy 1935-7-18 14103 Humboldt Table Bluff 6 Comment
  UC146171  Navarretia squarrosa J. P. Tracy 1904-7-31 2135 Humboldt immediate vicinity Eureka 0 Comment
  POM92408  Navarretia squarrosa L. R. Abrams 1922-6-25 8239 Humboldt 2 miles south of Fortuna Comment
  JEPS70478  Navarretia tagetina W. L. Jepson 1932-7-24 16386 Humboldt above Eel Rock; Mail Ridge 762 Comment
  SEINET10873102  Nemacladus capillaris Tracy 1908-6-27 TRACY 2842 Humboldt Northwest slope of Buck Mountain 1219 Comment
  JEPS1882  Nemophila menziesii var. atomaria Joseph P. Tracy 1927-4-17 7903 Humboldt 274 Comment
  CAS-BOT-BC219411  Nemophila parviflora Greg de Nevers 2001-4-17 12248 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  UC162585  Nemophila pedunculata Joseph P. Tracy 1911-5-7 3178 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCSB30602  Notholithocarpus densiflorus Edwards, David 1974-7-26 Humboldt On E. bank of Mad River, ca. at its junction with Puter Creek, ca. 2 mi. SW of Korbel 27 Comment
  HSC18704  Oemleria cerasiformis D. E. Anderson 1962-2-25 1925 Humboldt 1 mi. W of Ferndale along Centerville Beach Rd. Comment
  RSA782436  Oemleria cerasiformis R. W. Spjut, Paul Burchstead 2008-6-14 16347 Humboldt North Coast Ranges. Old Hwy. along west side of Hwy. 101 between Loleta and Fortuna 25 Comment
  UC1198786  Oemleria cerasiformis Joseph P. Tracy 1926-2-28 7374 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges 182 Comment
  UC1222315  Oemleria cerasiformis Joseph P. Tracy 1950-4-20 18618 Humboldt 2 mi w Dinsmore's (nw slope of Buck Mountain, lower slopes); Buck Mountain 762 Comment
  UC916666  Oenanthe pimpinelloides Joseph P. Tracy 1950-8-18 19330 Humboldt along Blocksburg rd. near bridge across Larrabee Creek 457 Comment
  UC1123090  Oenanthe sarmentosa H. L. Person 1932-8-22 Humboldt Eureka Quad., Arcata, Redwood Auto Camp. Comment
  SEINET12119027  Oenanthe sarmentosa J. P. Tracy 1950-1 19348 Humboldt Field's Landing, 2 mi S of town 6 Comment
  CDA38173  Oenothera villosa subsp. strigosa E. C. Whitney 1968-6-26 s.n. Humboldt 1440 Carson Woods Road. 0 Comment
  UC666999  Olsynium douglasii var. douglasii Joseph P. Tracy 1930-5-25 8704 Humboldt Larrabee Valley 731 Comment
  HSC37653  Olsynium douglasii var. douglasii Robert M. Specht, John Rehling 1976-4-25 397 Humboldt 12 mi. E of Bridgeville on Hwy. 36, at SE end of Larabee Valley Comment
  CAS-BOT-BC349969  Oreostemma alpigenum var. andersonii Doris K. Kildale 1925-8-16 1195 Humboldt Trinity Summit 1828 Comment
  HSC58094  Oreostemma alpigenum var. andersonii G. L. Clifton, Griswold 1979-8-1 12010 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1199307  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1937-8-12 15632 Humboldt Snow Camp, in and around meadow Snow Camp 1402 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
  UC1116247  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1948-5-31 18004 Humboldt Near Harris. Comment
  HSC54678  Orthilia secunda Overton, Butler 1979-7-26 9942 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC56153  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-8-1 12009 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC81604  Osmorhiza berteroi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5249 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UCR123963  Osmorhiza chilensis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6973 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
  HSC48813  Osmorhiza occidentalis Brad Klipfel 1973-7-31 227 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56139  Osmorhiza occidentalis G. L. Clifton 1979-8-1 11960 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC642276  Osmorhiza occidentalis Joseph P. Tracy 1927-6-12 8157 Humboldt Horse Mountain; lower slopes 1219 Comment
  HSC22861  Osmorhiza purpurea D. E. Anderson 1965-5-1 3562 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC71714  Osmorhiza purpurea M. A. Baker 1980-6-26 2435 Humboldt Near Sims Creek 610 Comment
  JEPS93971  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt at the s. tip of the North Spit of Humboldt Bay Samoa Dunes Recreation Area (along rd. leading into the recreation area); Humboldt Bay, Samoa Dunes Recreation Area 6 Comment
  CHSC19520  Oxalis oregana R. D. Modafferi 1965-5-1 66 Humboldt 0.5 mile south of Trinidad on old highway 101. Roadside. Comment
  HSC75416  Oxalis oregana J. O. Sawyer, M. A. Erickson 1979-7-15 3415 Humboldt Adroni Research Natural Area, slopes along Aikins Creek 457 Comment
  UC1103427  Oxalis oregana Joseph P. Tracy 1927-5-15 8044 Humboldt Sugar Bowl Mt., on rd between Willow Creek and Hoopa Northern Coast Ranges 457 Comment
  HSC102179  Oxalis trilliifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1092 Humboldt Patterson Meadows 1566 Comment
  HSC48829  Oxalis trilliifolia Brad Klipfel 1973-7-31 254 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196179  Paeonia brownii Joseph P. Tracy 1913-6-16 4146 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  POM126096  Panicum acuminatum var. acuminatum Joseph P. Tracy 1906-7-1 2517 Humboldt At Eureka 0 Comment
  CAS-BOT-BC253706  Panicum capillare Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET200951 Image available Panicum capillare Joeseph P. Tracy, A. S. Hitchcock 1908-7-30 2929 Humboldt Valley of van Duzen River Opposite Buck mountain. Comment
  RSA44527  Panicum oligosanthes var. scribnerianum Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  HSC23305  Papaver somniferum W. Wood Oct 1971 Humboldt McKinleyville Comment
  HSC93730  Parapholis incurva Gordon Leppig, Sylvia Leppig 1998-5-25 788 Humboldt Big Lagoon State Park. 1 Comment
  UC1103480  Parapholis incurva Joseph P. Tracy 1936-6-6 14860 Humboldt Eureka; Eureka, on bay shore 3 Comment
  UCSB25613  Parnassia palustris Tracy, Joseph 1934-8-29 Humboldt South Fork Mountain, McKay Camp 1676 Comment
  HSC37501  Paspalum dilatatum A. M. Montalvo, J. D. Ackerman 1975-8-9 629 Humboldt Arcata, Hwy. 101 and Guintoli Lane. Comment
  UC1103769  Paspalum dilatatum Fred M. Kay 1929-10-1 Humboldt near Blocksburg 457 Comment
  HSC20927  Pedicularis densiflora Francis Winter 1960-4-24 Humboldt 3.5 mi. SW of Hoopa Indian Reservation, Bair Rd. 610 Comment
  HSC50938  Pedicularis semibarbata G. L. Clifton, Walter Overton 1979-6-3 3760 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  UC218627  Pellaea andromedifolia Joseph P. Tracy 1921-5-30 5495 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  SEINET3873313  Pellaea mucronata subsp. mucronata Thomas Nelson, James Nelson 1976-5-30 2612 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC76044  Penstemon anguineus Walter Overton, Marvin Butler 1979-8-2 12564 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  JEPS7213  Penstemon anguineus Lincoln Constance 1934-6-19 905 Humboldt Grasshopper Pk near summit South Fork Eel River, Bull Creek Region 914 Comment
  JEPS86690  Penstemon anguineus L. R. Heckard with T. I. Chuang 1990-7-15 6769 Humboldt ca 15 mi n Highway 36 (South Fork Mountain Rd); South Fork Mountain Rd., n of Hwy 36 1700 Comment
  HSC73698  Penstemon laetus subsp. sagittatus M. A. Baker 1980-7-15 2971 Humboldt Near Whiting Ridge. 1341 Comment
  RSA407900  Penstemon laetus var. sagittatus H. M. Pollard 1948-7-19 s.n. Humboldt River road between Orleans and Van Fleet Ranch. Comment
  HSC56115  Penstemon newberryi subsp. berryi Gilbert Muth 1979-8-1 11886 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC59451  Penstemon newberryi var. berryi Richard Runyon 1979-6-27 40 Humboldt NW of Trinity Summit Station, W of ridge trail 1829 Comment
  HSC76252  Penstemon parvulus Denis Kearns 1981-7-6 73 Humboldt Near Mosquito Lake 1256 Comment
  HSC103085  Penstemon purpusii Sydney Carothers 2014-6-22 6 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  RSA420447  Penstemon rattanii Hutchinson 1927-05 s.n. Humboldt [No location information provided.] Comment
  RSA0094697  Pentagramma triangularis A. Davidson 1923-8-11 17064 Humboldt Near Scotia. Comment
  SEINET12119285  Perideridia howellii J. P. Tracy 1950-1 19331 Humboldt along Larrabee Creek, 0.5 mi along Blocksburg Road W from bridge across Larrabee Creek Comment
  HSC76403  Perideridia kelloggii M. A. Ericksen 1981-8-21 1085 Humboldt Near Dan East Cabin 1609 Comment
  UC184145  Perideridia kelloggii Joseph P. Tracy 1912-10-20 3999 Humboldt Alton Northern Coast Region 30 Comment
  CAS-BOT-BC330380  Petasites frigidus var. palmatus M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles N of Garberville Comment
  HSC65092  Petrorhagia dubia J. P. Smith, J. O. Sawyer 1976-5-2 8625 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  SD90173  Phacelia bolanderi Benjamin C. Stone 1952-6-25 124 Humboldt Hwy 101, 15 mi south of Klamath 14 Comment
  UC1222904  Phacelia bolanderi Joseph P. Tracy 1950-6-18 18852 Humboldt Briceland Comment
  UC1199106  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1945-7-4 17512 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS1158  Phacelia mutabilis Joseph P. Tracy 1932-7-12 10432 Humboldt Corral Prairie Trinity Summit 1584 Comment
  BLMAR159  Phacelia nemoralis subsp. nemoralis Donald Hazlett 1994-6-7 159 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1051815  Phacelia nemoralis subsp. oregonensis C. R. Bell May, 1951 1098 Humboldt bank below US Hwy 101 2.9 mi n Mendocino County line Comment
  HSC102566  Phacelia procera M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1553 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC58070  Phacelia procera G. L. Clifton, Griswold 1979-8-1 11955 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UCD88333  Phalaris angusta A. A. Beetle; J. P. Tracy, G. L. Stebbins Jr. 1942-6-2 3465 Humboldt 1 mile E of Alton. Comment
  UC146430  Phalaris arundinacea W. E. Dickinson Aug. 1910 Humboldt Eureka Comment
  RSA10051  Phalaris californica Joseph P. Tracy 1925-6-7 7085 Humboldt On Lord Ellis Road, on Bald Mountain 610 Comment
  SEINET200962 Image available Phalaris californica J. P. Tracy 1912-7-25 3819 Humboldt Kneeland Prairie N Coast Ranges 762 Comment
  UC1152005  Phalaris californica Joseph P. Tracy 1951-6-26 19599 Humboldt on Butter Valley Road about 2 mi e junction of Kneeland Prairie Road Comment
  UCD88768  Phalaris californica Joseph P. Tracy 1951-6-26 19599 Humboldt Butter Valley Road, about 2 miles E of junction of Kneeland Prairie Road. Comment
  HSC35714  Philadelphus californicus Thomas W. Nelson 1975-10-12 2235 Humboldt McKeown Ranch, N of Dinsmore Comment
  CAS-BOT-BC76557  Philadelphus lewisii Joseph P. Tracy 1938-6-9 15872 Humboldt Dobbyin Creek 152 Comment
  CAS-BOT-BC76571  Philadelphus lewisii Doris K. Kildale 1926-8-15 2508 Humboldt Trinity River Valley - Willow Creek Flat 152 Comment
  JEPS49602  Philadelphus lewisii Harley P. Chandler June, 1901 1523 Humboldt Sommes Bar North Coast Ranges, Klamath River 426 Comment
  UC1222381  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt 2 mi w Briceland; Redwood Creek Comment
  UC183571  Philadelphus lewisii Joseph P. Tracy 1912-7-4 3722 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UCSB25252  Philadelphus lewisii Tracy, Joseph 1937-6-20 Humboldt Bear River; 10 mi up from the mouth 152 Comment
  RSA0046937  Philadelphus lewisii Doris K. Kildale 1927-7-2 3661 Humboldt Redwood Creek at Berry s. Comment
  UC420417  Philadelphus lewisii P. E. Goddard 1907-6-10 #b. 119 Humboldt Van Duzen Comment
  CAS-BOT-BC253586  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt Eureka 60 Comment
  HSC58693  Phleum alpinum Overton, Butler 1979-8-2 12694 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC184008  Phleum alpinum Joseph P. Tracy 1912-7-31 3908 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope of Buck Mountain 1066 Comment
  HSC58537  Phleum pratense Overton, Butler 1979-7-23 9461 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC58632  Phleum pratense Gilbert Muth 1979-7-31 11490 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  UC906757  Phlox adsurgens Joseph P. Tracy 1942-6-23 17233 Humboldt near Box Camp; Trinity Summit 1524 Comment
  POM301286  Phlox adsurgens Joseph P. Tracy 1942-6-23 17233 Humboldt Trinity Summit, near Box Camp 1524 Comment
  CAS-BOT-BC141270  Phoradendron serotinum subsp. tomentosum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC92014  Phyllospadix scouleri G. Smith 1967-7-21 1980 Humboldt Patrick's Point State Park 0 Comment
  CHSC1563  Physocarpus capitatus A. Small 1954-6-4 Humboldt Coastal near Capetown. Comment
  CAS-BOT-BC73448  Picea sitchensis Ira L. Wiggins 1932-6-18 5870 Humboldt Hillside just north of mouth of Little River. Comment
  RSA23  Picea sitchensis E. R. Johnson 1928-8-26 1146 Humboldt Arcata. Comment
  UCSB24019  Picea sitchensis Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  SEINET11809969  Picris echioides J. P. Tracy 1948-1 18098 Humboldt 2 mi W of Bridgeville Comment
  HSC54535  Pinus jeffreyi Overton, Butler 1979-7-23 9485 Humboldt Near Horse Mtn. Creek 1326 Comment
  HSC41287  Pinus lambertiana Brad Klipfel 1974-7-27 481 Humboldt Horse Mtn. Comment
  UC55659  Pinus ponderosa P. E. Goddard 1901-7-12 66 Humboldt Hupa Comment
  HSC1574  Pinus radiata R. A. Magie 1964-5-3 45 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  UC4590  Piperia candida Harley P. Chandler Jun 1901 1385 Humboldt Hupa Indian Reservation North Coast Ranges 304 Comment
  UC14936  Piperia elegans J. P. Tracy 1901-8-7 1253 Humboldt opposite Eureka; Samoa Comment
  HSC63838  Pityopus californicus M. A. Baker 1979-6-26 906 Humboldt N side of ridge near summit Comment
  UC179943  Plagiobothrys reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt near Hydesville; Northern Coast Region 60 Comment
  JEPS60972  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt 10 mi up stream from mouth; Bear River 152 Comment
  JEPS60970  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1938-7-5 16013 Humboldt flat by old Strong's District School House (5 mi e of town); Carlotta 45 Comment
  JEPS60999  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1936-6-28 15009 Humboldt near Murphy Meadows; Bald Mt. 914 Comment
  RSA178571  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1942-6-15 17142 Humboldt Miranda; along South Fork of Eel River. 122 Comment
  SEINET12275870  Plagiobothrys scouleri J. P. Tracy 1950-1 18724 Humboldt Bear River Ridge Comment
  SEINET12275926  Plagiobothrys trachycarpus J. P. Tracy 1942-1 17355 Humboldt 1 mi NE of Garberville 305 Comment
  HSC16824  Plantago erecta R. T. Forester 1963-4-30 14 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  JEPS14281  Plantago erecta Joseph P. Tracy 1946-6-2 17553 Humboldt near Samoa; Humboldt Bay 6 Comment
  UC1151994  Plantago erecta Joseph P. Tracy 1950-6-8 18730 Humboldt Bear River Bridge 609 Comment
  OBI11640  Plantago lanceolata Joseph P. Tracy 1947-8-10 17882 Humboldt Eureka Comment
  UC1125641  Plantago lanceolata H. L. Person 1932-7-16 Humboldt n of Trinidad (highway); Rock Point Quad. Comment
Read comments
Aug 3 2007
  CDA18205  Plantago maritima G. D. Barbe, T. C. Fuller 1974-6-17 1831 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  UC1409180  Platanthera leucostachys Robert F. Thorne and P. Everett 1965-8-7 35172 Humboldt s end Big Lagoon 1 Comment
  UC176370  Platanthera leucostachys Joseph P. Tracy 1912-7-31 3901 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain 1066 Comment
  UC275579  Platanthera leucostachys Joseph P. Tracy 1924-7-13 6726 Humboldt Big Lagoon Northern Coast Region 6 Comment
  RSA20791  Platanthera leucostachys Carl B. Wolf 1937-8-13 9256 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC76607  Platanthera sparsiflora Teresa Prendusi 1981-7-7 121 Humboldt Near Slate Creek Butte. 1158 Comment
  HSC98719  Platanthera sparsiflora Cara Witte 2008-7-1 792 Humboldt Near Grouse Mountain spring. Along Forest Service Road 5N04. 1/4 mile east of intersection with 4N70. 1583 Comment
  SEINET14400441  Plectritis congesta Unknown 1938-6-11 719 d Humboldt Humboldt County Comment
  UC1239602  Plectritis congesta Joseph P. Tracy 1925-5-30 7017 Humboldt 3 mi w of Maple Grove (Bridgeville, Kemp's Ranch); Bridgeville, Kemp's Ranch 198 Comment
  UC999834  Plectritis congesta S. C. Dyal 1938-6-11 719 b Humboldt 10 mi w of Dinsmore (on McClellan Mountain); McClellan Mountain Comment
  HSC92237  Plectritis congesta subsp. brachystemon John Cromwell, Julie Schneider, A. Thoele 1994-3-19 6 Humboldt Hell's Half Acre, trailhead located 12 mi. S on S Fork Rd. off Hwy. 299 457 Comment
  SEINET12327009  Plectritis samolifolia S. C. Dyal 1938-1 739 Humboldt near Capetown Comment
  HSC97358  Pleuricospora fimbriolata Rudolf W. Becking 1972-6-30 Humboldt Fish Lake area, Orleans. Bulk Collection 31 762 Comment
  HSC10613  Pleuropogon refractus R. D. Modaferri 1965-5-13 98 Humboldt 2.2 mi N of Trinidad on Trinity St. 274 Comment
  HSC99458  Pleuropogon refractus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 112 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC180497  Poa compressa Joseph P. Tracy 1913-7-20 4378 Humboldt at Berry Crossing Redwood Creek; Northern Coast Ranges 304 Comment
  RSA176927  Poa confinis P. H. Raven 1963-5-15 18372 Humboldt Lanphere Ranch just west of Mad River Slough; near Arcata Comment
  HSC46977  Poa douglasii J. P. Smith, Thomas W. Nelson 1977-6-30 9223 Humboldt Samoa Peninsula just E of the drag strip. Comment
  CAS-BOT-BC255850  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay 30 Comment
  UC525620  Poa kelloggii Joseph P. Tracy 1926-4-25 7415 Humboldt on Van Duzen River Grizzly Creek; North Coast Ranges 91 Comment
  CAS-BOT-BC254278  Poa macrantha David D. Keck; J. Clausen 1935-6-16 3382 Humboldt Mouth of Little River Comment
  UCD91542  Poa macrantha J. W. Congdon 1904-7-3 s.n. Humboldt on the Peninsula. City of Eureka. Comment
  UC1132739  Poa pratensis subsp. pratensis H. L. Person 1932-5-11 Humboldt Arcata; Eureka Quadrangle Comment
  HSC102087  Poa secunda subsp. secunda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 990 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC10713  Poa secunda subsp. secunda G. N. Bos 1965-5-15 269 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  UC1145116  Poa trivialis Joseph P. Tracy 1943-7-18 17435 Humboldt Big Lagoon 9 Comment
  CAS-BOT-BC414302  Polygonum aviculare subsp. neglectum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  JEPS50516  Polygonum convolvulus Milo S. Baker 1923-8-5 176 Humboldt Stone Lagoon; in potato field Comment
  CAS-BOT-BC414463  Polygonum douglasii Joseph P. Tracy 1940-8-25 16707 Humboldt Northern Coast Ranges. High Prairie, on Bald Mountain 1066 Comment
  UC1116239  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1947-8-24 17887 B Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC672961  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1932-7-11 10399 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC146189  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1908-6 2921 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC55509  Polygonum douglasii subsp. spergulariiforme Mrs. M. H. Manning 1900-1 Humboldt Hupa Comment
  HSC55101  Polygonum minimum G. L. Clifton 1979-7-31 11832 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  JEPS79954  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1935-7-28 14316 Humboldt Devil's Hole Trinity Summit (head) 1828 Comment
  UC205474  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1919-9-22 5269 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CAS-BOT-BC71921  Polypodium californicum Donald Branscomb 1959-2-1 s.n. Humboldt Trinidad Comment
  HSC1129  Polypodium californicum W. R. Supernaugh, Jr. 1964-12-11 13 Humboldt 200 yards S of Trinidad harbor Comment
  RSA46707  Polypodium glycyrrhiza Doris K. Kildale 1929-3-10 6942 Humboldt Bug Creek Comment
  SEINET182509 Image available Polypodium glycyrrhiza H. E. Parks 1924-6-1 2837 Humboldt Lawrence Creek Comment
  CAS-BOT-BC76847  Polypodium glycyrrhiza Doris K. Kildale 1928-12-30 6766 Humboldt Pillipsville 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
  UC62442  Polypodium scouleri W. C. Blasdale 1896-6-2 Humboldt w Eureka Eureka Comment
  CAS-BOT-BC232958  Polypogon australis Mrs. H. C. Cantelow 1961-5-29 s.n. Humboldt 5.7 km Eel River, Hartsook Comment
  JEPS72929  Polypogon monspeliensis Lincoln Constance 1934-5-26 672 Humboldt sand and gravel bar of South Fork of Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  RSA46871  Polypogon monspeliensis Doris K. Kildale 1927-6-25 3546 Humboldt Shelter Cove. Comment
  UCD91310  Polypogon monspeliensis J. B. Davy; W. L. Blasdale 1899-5 5549 Humboldt Scotia. Comment
  HSC12977  Polystichum munitum M. Athey, D. La Conte 1970-11-28 2 Humboldt HSU campus Comment
  JEPS296  Polystichum munitum W. L. Jepson 1932-7-26 16406 Humboldt Bull Creek Comment
  SBBG307  Polystichum munitum H. and M. Dearing 1939-5-27 3455 Humboldt Patrick's Point Comment
  SEINET4555668 Image available Polystichum munitum Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15050 Humboldt Bolling Grove State Park. Comment
  UC519316  Polystichum munitum Joseph P. Tracy 1933-7-21 12813 Humboldt 5 mi e Carlotta (Riverside Auto Park on Van Duzen River); North Coast Ranges 60 Comment
  UC1196663  Populus trichocarpa Joseph P. Tracy 1932-5-1 9842 Humboldt along Van Duzen River Alton (North Coast Ranges); , along Van Duzen River 30 Comment
  HSC69532  Potamogeton natans R. Kalal 1979-5-18 76 Humboldt Shallow slough E of Clam Beach County Park 24 Comment
  HSC36293  Potamogeton nodosus James K. Griswold 1974-5-18 Humboldt Westend Rd., across from Humboldt Flakeboard Comment
  CAS-BOT-BC453908  Potamogeton pectinatus Henry M. Pollard 1946-8-13 s.n. Humboldt Near Harley place, Orleans region Comment
  HSC36301  Potamogeton richardsonii Camille Cornish 1973-10-10 5 Humboldt Edge of Freshwater Lagoon Comment
  BLMAR65  Potentilla anserina subsp. pacifica Jennifer Anthony-Wheeler 1994-5-18 65 Humboldt Samoa/manilla, growing on SW side of ' wetland area on samoa Rec area ' 6 Comment
  CAS-BOT-BC143076  Potentilla anserina subsp. pacifica Annetta Carter 1934-8-17 719 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  HSC63026  Potentilla anserina subsp. pacifica J. P. Smith 1971-10-6 4937 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC79389  Potentilla anserina subsp. pacifica Kenneth Clark 1980-5-10 652 Humboldt Shelter Cove, western beach of Point Delgada at 10 ft. above high tide Comment
  SD42346  Potentilla anserina subsp. pacifica Carl B. Wolf 1937-9-12 9326 Humboldt Dry Lagoon State Park Comment
  HSC102177  Potentilla gracilis var. fastigiata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1090 Humboldt Patterson Meadows 1555 Comment
  HSC75969  Potentilla gracilis var. fastigiata Overton, Butler 1979-8-2 12596 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC279095  Potentilla gracilis var. gracilis H. E. Parks 1925-6-17 Humboldt Kneeland Comment
  HSC61166  Prosartes hookeri T. Jimerson, J. Pageau 1979-7-31 701 Humboldt Near Whiting Ridge. Close to the town of Hyampom, CA. 1204 Comment
  HSC15459  Prosartes hookeri D. E. Anderson 1965-4-28 3554 Humboldt Rd. leading S on E side of creek, Freshwater County Park Comment
  UCD139805  Prosartes hookeri H. P. Olmo 1931-6-8 s.n. Humboldt near Orich. Comment
  CAS-BOT-BC517505  Prosartes smithii L. R. Abrams 1927-9-1 12061 Humboldt Big Lagoon Comment
  HSC14307  Prunella vulgaris David Adams 1960-7-15 Humboldt Near Azalea Reserve State Park 30 Comment
  HSC58032  Prunella vulgaris subsp. lanceolata G. L. Clifton 1979-7-31 11857 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  JEPS62488  Prunella vulgaris var. lanceolata Joseph P. Tracy 1940-9-26 16729 Humboldt Eureka 6 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
  HSC56201  Prunus emarginata Gilbert Muth 1979-8-1 12184 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC72696  Prunus emarginata Gail Newton 1980-6-24 590 Humboldt Near Ladder Rock 1570 Comment
  RSA43863  Prunus emarginata H. M. Pollard 1947-9-1 s.n. Humboldt Near summit of Somes Peak, Orleans region. 1524 Comment
  UC183605  Prunus emarginata Joseph P. Tracy 1912-7-31 3922 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain Comment
  UC492201  Prunus emarginata Joseph P. Tracy 1932-7-13 10527 Humboldt at Corral Prairie, Trintiy Summit, Klamath Mountains Corral Prairie; Klamath Mountains, Trintiy Summit 1524 Comment
  RSA43864  Prunus virginiana var. demissa H. M. Pollard 1948-8-12 s.n. Humboldt Orleans Comment
  JEPS24541  Pseudognaphalium ramosissimum Dick Waring 1960-8-1 Humboldt in disturbed area about 2 mi n Weott; Avenue of the Giants Comment
  UC164851  Pseudognaphalium ramosissimum Joseph P. Tracy 1909-9-19 3095 Humboldt sand dunes of ocean beach at Humboldt Bay; Northern Coast Region, Humboldt Bay Comment
  HSC35629  Pseudognaphalium stramineum Thomas W. Nelson, James Nelson 1975-8-5 2142 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  HSC5704  Pseudognaphalium stramineum David Adams 1960-8-17 Humboldt 1/8 mi. away from nearest ocean water. 2 mi. S of Samoa 3 Comment
  CAS-BOT-BC80111  Pseudotsuga menziesii Doris K. Kildale 1925-12-27 1463 Humboldt Kneeland Prairie 762 Comment
  UC535777  Pseudotsuga menziesii Eleanor Armstrong 1934-8-15 1186 Humboldt Richardson Grove Richardson Grove (on hillslopes) 121 Comment
  HSC54524  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-23 9458 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC70640  Pseudotsuga menziesii var. menziesii R. York 1980-5-18 593 Humboldt Near Black Mtn. 792 Comment
  SDSU2009  Pseudotsuga menziesii var. menziesii Harvey 1938-8-14 2317 Humboldt U. S 299 Arcata- Willow Creek. Comment
  UCD135129  Pseudotsuga menziesii var. menziesii P. Zinke 1950-8-3 145 Humboldt California Forest and Range Experiment Station. 3 miles south of Harris. Comment
  UC1222913  Psilocarphus tenellus Joseph P. Tracy 1946-6-23 17597 Humboldt se end Kneeland Prairie (near the old Dan McBride place) 762 Comment
  CAS-BOT-BC460597  Pyrola aphylla Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  HSC55275  Pyrola crypta Overton, Butler 1979-8-2 12672 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS58818  Pyrola dentata Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  UC412735  Pyrola picta Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC18695  Pyrus fusca H. E. Parks Apr 1933 4352 Humboldt Spruce Cove, Trinidad Comment
  UC709464  Quercus X morehus Joseph P. Tracy 1941-6-15 16915 Humboldt Panther Gap; on Bull Creek-Mattole Rd 762 Comment
  HSC40146  Quercus chrysolepis Thomas W. Nelson, James Nelson 1976-10-25 3277 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC98518  Quercus chrysolepis Cara Witte 2008-8-6 1013 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  UC54678  Quercus chrysolepis Harley P. Chandler Jun 1901 1435 Humboldt Klamath River North Coast Ranges 304 Comment
  UC5582  Quercus chrysolepis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5458 Humboldt near Elk Prairie Comment
  CAS-BOT-BC94311  Quercus garryana Doris K. Kildale 1926-8-22 2571 Humboldt Bald Hills 716 Comment
  HSC53996  Quercus garryana Griswold, Butler 1979-7-11 7083 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC54686  Quercus garryana Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5854 Humboldt Trinity Summit, at lake near the top North Coast Ranges Comment
  CAS-BOT-BC62727  Quercus garryana var. breweri Doris K. Kildale 1926-9-5 2631 Humboldt Head of Red Lassecks huk. Lasseck's Peaks 1676 Comment
  UC667985  Quercus garryana var. breweri Joseph P. Tracy 1935-7-14 14091 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  RSA46718  Quercus garryana var. garryana Doris K. Kildale 1937-8-29 15352 Humboldt Dinsmore's. Comment
  HSC68607  Quercus kelloggii Jacqueline Greenleaf 1980-8-12 329 Humboldt Near Becker Cabin. 1143 Comment
  HSC98723  Quercus kelloggii Cara Witte 2008-7-11 885 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  HSC72682  Quercus sadleriana J. P. Smith 1977-7-3 9264 Humboldt Onion Lake Comment
  SEINET3823284 Image available Quercus sadleriana Joseph P. Tracy 1947-8-24 17909 Humboldt Trinity Summit, Box Camp 1524 Comment
  HSC54519  Quercus vacciniifolia Overton, Butler 1979-7-23 9446 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  UC1222294  Quercus wislizeni Joseph P. Tracy 1950-6-15 18796 Humboldt 7 mi n Harris; Mail Ridge Comment
  HSC26276  Ranunculus aquatilis var. diffusus Thomas W. Nelson 1971-5-29 453 Humboldt E side of the Big Bend Rd. near Maple Creek Comment
  UC1196240  Ranunculus californicus J. P. Tracy 1901-4-7 1005 Humboldt immediate vicinity of Eureka 0 Comment
  UC162341  Ranunculus muricatus Joseph P. Tracy 1911-5-17 3185 Humboldt Eureka Northern Coast Region 0 Comment
  HSC18153  Ranunculus muricatus T. W. Beck 1963-5-10 50 Humboldt Camp Bauer, Korbel Comment
  UC1196223  Ranunculus occidentalis Joseph P. Tracy 1918-5-28 4948 Humboldt Bald Mountain Northern Coast Ranges (High Prairie) 1066 Comment
  UC1196228  Ranunculus occidentalis Joseph P. Tracy 1933-7-11 12666 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  UC1196232  Ranunculus occidentalis Joseph P. Tracy 1934-6-27 13263 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  UC1542903  Ranunculus occidentalis H. E. Parks, J. P. Tracy 1930-5-25 859 Humboldt Laribee Valley 762 Comment
  HSC71029  Ranunculus occidentalis Thomas W. Nelson 1977-4-20 3321 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  UC1196235  Ranunculus occidentalis Joseph P. Tracy 1902-6-3 1671 Humboldt ridge between Harris and Fruitland; Northern Coast Ranges 762 Comment
  HSC97644  Ranunculus occidentalis var. occidentalis C. Witte 2007-5-8 12 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  UC1196245  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1933-7-11 12701 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC118220  Ranunculus orthorhynchus var. orthorhynchus J. W. Blankinship 1893-6-15 Humboldt Yager Comment
  UC1196267  Ranunculus parviflorus Joseph P. Tracy 1928-5-13 8434 Humboldt near Centerville; Northern Coast Ranges, Fleener's Gulch 60 Comment
  UCR17461  Ranunculus repens R. S. Woglum 1938-8-29 2036 Humboldt North Coast, grounds of Trinidad State Park, south of Trinidad 38 Comment
  HSC56305  Ranunculus uncinatus Overton, Butler 1979-8-2 12613 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1196274  Ranunculus uncinatus Joseph P. Tracy 1922-6-5 6085 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  RSA134710  Rhamnus purshiana Peter H. Raven 1958-7-21 13655 Humboldt 7.2 miles NW of Capetown on road to Ferndale. Comment
  UC902200  Rhamnus purshiana Joseph P. Tracy 1947-7-5 17818 Humboldt Box Camp Trinity Summit 1463 Comment
  UCR3519  Rhamnus purshiana David Whistler, H. M. Whistler 1964-8-1 640801- 4 Humboldt Coast Range, US Hwy 299, 6 mi east of Blue Lake Comment
  RSA8096  Rhamnus tomentella subsp. tomentella Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  SEINET11996978  Rhododendron macrophyllum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -297 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  UC1197792  Rhododendron occidentale Joseph P. Tracy 1921-6-19 5837 Humboldt along road between Three Creeks and mouth of Willow Creek (above Koby's); Northern Coast Ranges 609 Comment
  UCSB22300  Rhododendron occidentale Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  CAS-BOT-BC200381  Rhododendron occidentale var. paludosum G. A. Coleman 1901-7-20 s.n. Humboldt Near Arcata Comment
  RSA167293  Ribes binominatum Joseph P. Tracy 1950-7-1 18949 Humboldt Grouse Mountain; at Cold Springs . 1433 Comment
  HSC100491  Ribes divaricatum Carl C. Marshall Apr 1886 171 Humboldt Vicinity of Humboldt Bay. Comment
  CAS-BOT-BC108911  Ribes divaricatum var. pubiflorum John Thomas Howell 1954-4-25 29158 Humboldt Dune hills, Little River. Comment
  UC667072  Ribes inerme var. klamathense Joseph P. Tracy 1937-4-3 15243 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC56265  Ribes lacustre G. L. Clifton, Griswold 1979-8-2 12423 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC154154  Ribes laxiflorum Harley P. Chandler May, 1901 1171 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  CAS-BOT-BC173368  Ribes lobbii J. H. Thomas 1949-6-13 912 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  HSC103237  Ribes lobbii Jade Paget-Seekins 2010-6-22 22 Humboldt Horse Mountain. 10 miles up Titlow Hill Road, on Forest Route 1. 1591 Comment
  JEPS49356  Ribes lobbii W. L. Jepson 1902-7-16 2038 Humboldt Trinity Summit 2133 Comment
  UC1541294  Ribes lobbii W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  RSA0021134  Ribes lobbii Lyman Benson 1928-7-12 503 Humboldt Weott Ranger Station. Seaward North Coast Range, South Fork Eel River. 61 Comment
  UC519248  Ribes marshallii Joseph P. Tracy 1932-7-15 10592 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  HSC34630  Ribes menziesii R. M. Sullivan 1975-4-9 3 Humboldt 1.0 mi. S of Patrick's Point, 40yds W of old Hwy. 101 46 Comment
  HSC79481  Ribes menziesii Kenneth Clark 1980-3-27 559 Humboldt N fork of Dead Man's Gulch 82 Comment
  UC1198930  Ribes menziesii Joseph P. Tracy 1938-4-5 15707 Humboldt North Fork of Mad River (its eastern limit here) Mad River 304 Comment
  UC1198935  Ribes menziesii Joseph P. Tracy 1913-3-9 4021 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC74469  Ribes roezlii Gail Newton 1980-7-23 1719 Humboldt Near Packsaddle Ridge 1463 Comment
  RSA0024753  Ribes roezlii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5594 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC1198942  Ribes roezlii var. cruentum Joseph P. Tracy 1949-7-19 18397 Humboldt Grouse Mountain 1584 Comment
  HSC57037  Ribes sanguineum Overton, Butler 1979-7-24 9674 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1563694  Ribes sanguineum Barbara Ertter with Thomas J. Delendick 1987-5-16 6939 Humboldt ca. 3 mi e Berry Summit (on Hwy 299, on s side of road above Willow Cr., ca. 20 air mi e of Arcata) 800 Comment
  CAS-BOT-BC144686  Ribes sanguineum var. glutinosum Lincoln Constance; Reed Rollins 1942-5-11 2866 Humboldt Near summit 8 miles east of Blue Lake Comment
  RSA0018247  Ribes sanguineum var. glutinosum Lyman Benson 1928-7-10 615 Humboldt Clam Beach, Trinidad. 30 Comment
  HSC103199  Ribes viscosissimum Jade Paget-Seekins 2010-7-5 36 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  HSC32267  Ribes viscosissimum J. O. Sawyer 1970-6-24 2276 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC63085  Romanzoffia californica David Wheeler 1979-4-25 85 Humboldt Kneeland Ridge, 5 mi. past the Kneeland Post Office on the way to the airport Comment
  JEPS13132  Romanzoffia californica Joseph P. Tracy 1925-4-5 6954 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC552250  Romanzoffia californica Joseph P. Tracy 1923-4-29 6196 Humboldt Kneeland Prairie 762 Comment
  RSA95496  Romanzoffia californica L. S. Rose 1954-4-24 54015 Humboldt Trinidad Head. Comment
  HSC6899  Rorippa curvisiliqua D. E. Anderson 1961-9-30 1844 Humboldt Divide Lake Comment
  HSC44064  Rorippa curvisiliqua Thomas W. Nelson, Jane P. Nelson 1977-6-19 3506 Humboldt Above Alder Springs 1585 Comment
  JEPS53810  Rorippa nasturtium-aquaticum Lincoln Constance 1934-5-29 735 Humboldt Upper Look Prairie , South Fork Eel River, Upper Look Prairie (Bull Creek Region) 365 Comment
  UCD115322  Rorippa palustris Joseph P. Tracy; H. E. Parks 1931-5-17 9425 Humboldt Trinity River near Willow Creek. 152 Comment
  CAS-BOT-BC146495  Rosa gymnocarpa C. B. Wolf 1931-8-30 2376 Humboldt 11 miles above Blue Lake on the Lord Ellis Road to Willow Creek 304 Comment
  HSC47952  Rosa gymnocarpa Brad Klipfel 1974-7-27 493 Humboldt Horse Mtn. Comment
  HSC99263  Rosa gymnocarpa C. B. Wolf 1927-8-30 1259 Humboldt 3 mi. S of Thorn along old coast road Comment
  JEPS47241  Rosa gymnocarpa W. L. Jepson 1932-7-30 16462 Humboldt Bull Creek 121 Comment
  SEINET200819  Rosa gymnocarpa Joseph P. Tracy 1911-7-7 3428 Humboldt Brannan Mountain ,viz. Ridge north of Willow Creek, between Willow and Campbell Creeks, near the summit 1219 Comment
  UC527562  Rosa gymnocarpa C. B. Wolf 1931-8-30 2376 Humboldt 11 mi above Blue Lake (on Lord Ellis Rd to Willow Creek) 304 Comment
  UC667030  Rosa gymnocarpa Joseph P. Tracy 1936-8-7 15107 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC148340  Rosa pisocarpa Alice Eastwood; John Thomas Howell 1937-6-23 4763 Humboldt Dinsmore's Comment
  POM366457  Rubus laciniatus Thekla Mohr 1900-07 s.n. Humboldt Eel River Comment
  HSC102020  Rubus lasiococcus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 921 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC1199044  Rubus lasiococcus Joseph P. Tracy 1947-6-26 17746 Humboldt near McKay camp (South Fork Mountain); , near McKay camp 1676 Comment
  HSC99589  Rubus leucodermis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 258 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
  UC467839  Rubus leucodermis P. E. Goddard 1906-6 673 Humboldt Lasseck Pk. Lasseck Pk Comment
  HSC19659  Rubus parviflorus W. R. Brigham 1962-5-20 15 Humboldt Side of Old Hwy. 101, N of Big Lagoon rd. Comment
  UC666864  Rubus parviflorus Joseph P. Tracy 1936-8-7 15104 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  UCR32042  Rubus parviflorus David J. Keil 1983-7-1 17292 Humboldt Between Ferndale & Bear River Ridge Road along Mattole Road Comment
  CAS-BOT-BC156727  Rubus spectabilis David D. Keck; J. Clausen 1935-6-16 3394 Humboldt Mouth of Little River, at roadside Comment
  CHSC59811  Rubus spectabilis Jordan Detzer 1977-4-8 6 Humboldt South end of Patrick's Point State Park, ca 0.2 mi west of Hwy 101 and 5 mi north of Trinidad. 60 Comment
  HSC19686  Rubus spectabilis D. E. Anderson 1962-2-10 1914 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  UC709449  Rubus spectabilis Joseph P. Tracy 1941-4-8 16853 Humboldt along Trinity Highway (Willow Creek Canyon, along head of Willow Creek); Willow Creek Canyon, along head of Willow Creek 762 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
  SEINET5710898  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  SEINET5710905  Rudbeckia occidentalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6104 Humboldt From California 299 at Hawkins Bar (In Trinity County), turn onto the road to Denny and travel 1.7 miles down this road toa fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to antoher fork in the road. Take the right fork (away from thr road leading to Waterman Ridge and Willow Creek). On the road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7 NO4N, the road to Groves Prairie. The collection site is a short distance up the road.; Groves Prairie Comment
  CHSC1353  Rumex acetosella M. Underhill 1952-7-14 Humboldt 30 Comment
  HSC55016  Rumex acetosella Overton, Butler 1979-7-31 11408 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC70235  Rumex acetosella M. A. Baker 1980-6-8 1898 Humboldt Near Buck Flat. 1554 Comment
  HSC45490  Rumex acetosella Maralyn O'Meara 1972-6-8 101 Humboldt Along Bald Hills Rd. 18 mi. E of junction with Hwy. 101 Comment
  HSC73636  Rumex californicus M. A. Baker 1980-7-22 3128 Humboldt Near Grogan Hole. 1676 Comment
  HSC34977  Rumex crassus Thomas W. Nelson 1974-9-13 1712 Humboldt King Salmon area Comment
  CDA2893  Rumex obtusifolius T. C. Fuller 1958-6-17 590 -58 Humboldt Hydesville. 0 Comment
  UC722995  Rumex salicifolius var. crassus C. L. Hitchcock and J. S. Martin 1939-7-14 5438 Humboldt Shelter Cove Comment
  JEPS385  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 Comment
  CAS-BOT-BC239837  Rytidosperma penicillatum Joseph Tracy 1942-3-1 s.n. Humboldt Bald Mountain Comment
  UCD92351  Rytidosperma penicillatum R. Tofsrud 1947-7-1 200 Humboldt near Loleta. Comment
  UCD98453  Sagina maxima subsp. crassicaulis Joseph P. Tracy 1947-9-1 17927 Humboldt Big Lagoon. 6 Comment
  UC205455  Sagina procumbens Joseph P. Tracy 1920-6-6 5338 Humboldt Freshwater Creek near Wrangletown; Northern Coast Ranges, around Humboldt Bay, Freshwater Creek 30 Comment
  CAS-BOT-BC132711  Salix A. T. Whittemore 1980-3-15 80 -005 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CAS-BOT-BC132669  Salix coulteri Joseph P. Tracy 1932-7-31 10286 Humboldt Eel River, Alton to Fortuna 15 Comment
  CAS-BOT-BC103812  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01234 Humboldt On floodplain of the Van Duzen River, 1 1/2 miles east of Alton 30 Comment
  CAS-BOT-BC103814  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01234 Humboldt On floodplain of the Van Duezn River, 1 1/2 miles east of Alton 30 Comment
  CAS-BOT-BC103823  Salix exigua Harold E. Parks 1931-5-14 0964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  POM220112  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  HSC19945  Salix exigua var. hindsiana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 1330 Humboldt Trinity River, near bridge on Trinity Hwy. 152 Comment
  UC512028  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1330 Humboldt near bridge on Trinity Hwy. Trinity R. 152 Comment
  CAS-BOT-BC104096  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0975 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104105  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01335 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107715  Salix hookeriana Doris K. Kildale 1926-6-29 2238 Humboldt Mouth of Mad River Comment
  CHSC9651  Salix hookeriana E. L. Smith 1971-8-17 1022 Humboldt Ca. 7 mi s of Eureka at Field's Landing. Comment
  HSC19958  Salix hookeriana H. E. Parks 1931-5-12 956 Humboldt Samoa, Humboldt Bay 0 Comment
  HSC20066  Salix hookeriana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1231 Humboldt Van Duzen River, 1.5 mi. E of Alton 30 Comment
  HSC38176  Salix hookeriana Thomas W. Nelson 1976-3-5 3286 Humboldt Beside Martin's Slough just upstream from Eureka Muni Golf Course Comment
  HSC96368  Salix hookeriana Gordon Leppig 1999-4-15 1121 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  POM167518  Salix hookeriana Joseph P. Tracy 1918-4-7 4863 Humboldt Dows Prairie Sand Dunes. At mouth of Strawberry Creek. 6 Comment
  POM219354  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Near Samoa. On Humboldt Bay. 6 Comment
  SBBG59110  Salix hookeriana H. E. Parks -Aug-1931 1053 Humboldt Little River Lagoon Comment
  SBBG59112  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-7 1103 Humboldt Little River Lagoon Comment
  SD936  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna, on banks of Eel River 10 Comment
  UC1196629  Salix hookeriana Joseph P. Tracy 1919-3-23 5121 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC275495  Salix hookeriana Joseph P. Tracy 1925-11-1 7303 Humboldt Shiveley Northern Coast Ranges, Shiveley 60 Comment
  UC470405  Salix hookeriana Joseph P. Tracy 1931-8-9 9609 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC470432  Salix hookeriana Joseph P. Tracy 1927-11-13 8393 Humboldt Little River Northern Coast Region, around Humboldt Bay (sand dunes at mouth) 6 Comment
  UC481271  Salix hookeriana Harold E. Parks 1931-5-28 1018 Humboldt Little River Lagoon Comment
  UC481387  Salix hookeriana Harold E. Parks 1931-3-24 915 a Humboldt Trinidad 90 Comment
  UC490476  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10344 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UC512111  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1204 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UCD111037  Salix hookeriana Linda M. Barker 1976-4-13 1383 Humboldt 3 miles west of Arcata. Comment
  UCD111039  Salix hookeriana Linda M. Barker 1976-4-30 1416 Humboldt 3 miles west of Arcata. Comment
  POM219559  Salix hookeriana var. tomentosa H. E. Parks 1931-3-26 905 Humboldt Alton on Van Duzen River. 15 Comment
  UC490518  Salix laevigata Joseph P. Tracy 1932-5-1 9880 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  LA208818  Salix lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 966 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  CAS-BOT-BC107592  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1329 Humboldt In dry ravines on west slope of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  CAS-BOT-BC107594  Salix lasiolepis Harold E. Parks; Susan T. Parks 1931-8-15 1079 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107647  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. on Trinity Highway 762 Comment
  HSC19997  Salix lasiolepis J. P. Tracy 1933-3-19 10934 Humboldt Bridgeville, along Van Duzen River 229 Comment
  HSC20003  Salix lasiolepis J. P. Tracy 1933-4-9 10969 Humboldt Blue Slide, Van Duzen River 91 Comment
  HSC55627  Salix lasiolepis Overton, Butler 1979-7-24 9609 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC56187  Salix lasiolepis Gilbert Muth 1979-8-1 12123 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC96597  Salix lasiolepis Gordon Leppig 2003-2-22 1812 Humboldt Arcata Marsh, NE corner of log pond 3 Comment
  JEPS12909  Salix lasiolepis Joseph P. Tracy 1927-4-10 7885 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  UC1173596  Salix lasiolepis Joseph P. Tracy 1936-10-17 15200 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC1196627  Salix lasiolepis Joseph P. Tracy 1935-5-25 13890 Humboldt North Dobbyn Creek Dobbyn Creek 152 Comment
  UC275523  Salix lasiolepis Joseph P. Tracy 1923-4-15 6189 A Humboldt Redwood Creek, at Berry's 274 Comment
  UC469420  Salix lasiolepis Joseph P. Tracy 1929-10-20 8681 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC481315  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC481339  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC490543  Salix lasiolepis Joseph P. Tracy 1932-5-10 9958 Humboldt near Petrolia; Northern Coast Ranges, Mattole River 15 Comment
  UC504026  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1319 Humboldt Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  UC504031  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1338 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River Comment
  UC506387  Salix lasiolepis Joseph P. Tracy 1932-8-21 10356 Humboldt lower w. foothills of Chaparral Mt. (Three Cabins); Northern Coast Ranges, , Three Cabins 457 Comment
  UC506506  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC511982  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC519327  Salix lasiolepis Joseph P. Tracy 1933-5-14 12178 Humboldt mouth of Willow Creek Trinity River Valley 152 Comment
  UCSB11964  Salix lasiolepis Ball, Carleton; Parks, Harold; Tracy, Joseph 1932-5-11 Humboldt Little River Lagoon, 4.5 miles south of Trinidad Comment
  HSC102022  Salix lucida subsp. lasiandra M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 923 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  POM184868  Salix lucida subsp. lasiandra H. E. Parks, Susan T. Parks 1932-5-12 1150 Humboldt Near bridge at mouth of Maple Creek. Big Lagoon. Comment
  CAS-BOT-BC125618  Salix melanopsis A. A. Heller 1923-7-10 13796 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  SBBG57930  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 972 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  SBBG57935  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  SD909  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC469452  Salix melanopsis Joseph P. Tracy 1931-9-7 9641 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481170  Salix melanopsis Harold E. Parks 1931-8-25 1061 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC481194  Salix melanopsis Harold E. Parks 1931-8-25 1060 Humboldt on Van Duzen R Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC511996  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1237 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  UC512006  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1232 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  CAS-BOT-BC213695  Salix parksiana Harold E. Parks 1931-5-14 0962 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  RSA0005852  Salix parksiana H. E. Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC129246  Salix piperi Joseph P. Tracy 1932-3-19 9787 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC129130  Salix scouleriana Harold E. Parks 1931-5-20 994 Humboldt Blue Lake, Mad River 15 Comment
  JEPS13084  Salix scouleriana Joseph P. Tracy 1936-2-2 14767 Humboldt vicinity of Carlotta 30 Comment
  UC1196701  Salix scouleriana J. P. Tracy 1900-12-22 974 Humboldt immediate vicinity Eureka 0 Comment
  UC481353  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt pine barrens Samoa; Humboldt Bay, Samoa Comment
  UC481354  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt pine barrens Samoa; Humboldt Bay, Samoa Comment
  UC490507  Salix scouleriana Joseph P. Tracy 1932-8-11 10338 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  CAS-BOT-BC128958  Salix sitchensis John H. Thomas 1966-3-19 11483 Humboldt Near Westhaven Drive and highway 101, Trinidad 60 Comment
  HSC90746  Salix sitchensis Jean Hanson 1980-3-8 23 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UCD111910  Salix sitchensis Harold E. Parks 1931-3-25 0903 Humboldt Orick, Van Duzen River. 6 Comment
  UC504017  Salix tracyi C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1244 Humboldt Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC235015  Sambucus L. R. Abrams 1918-6-16 7181 Humboldt Willow Creek Comment
  RSA1808  Sambucus callicarpa C. B. Wolf 1930-10-26 1765 Humboldt 1 mile south of Trinidad 91 Comment
  SD56862  Sambucus callicarpa Darley F. Howe 1963-8-6 3704 Humboldt 4.5 miles south of Orick on Highway 101. Comment
  UC177248  Sambucus mexicana Joseph P. Tracy 1912-7-26 3836 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC62749  Sanicula arctopoides J. M. DiTomaso 1979-4-21 897 Humboldt Cliffs above College Cove, Elks Head, Trinidad Comment
  HSC89430  Sanicula arctopoides P. A. Daly 1984-5-8 9 Humboldt Trinidad Head. 61 Comment
  HSC32851  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1973-5-28 943 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC39448  Sanicula crassicaulis Linda M. Barker 1976-8-2 1669 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  UC1022528  Sanicula crassicaulis C. Ritchie Bell 1952-5-14 3 X456 Humboldt Patrick Point State Park Comment
  UC1022532  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 3 X452 Humboldt 4.4 mi e of Bridgeville (below road) Comment
  HSC38885  Sanicula graveolens J. O. Sawyer 1970-6-25 2297 Humboldt 1646 Comment
  HSC48752  Sanicula graveolens Brad Klipfel 1973-6-16 78 Humboldt Along ridge trail SE of N Trinity Mountain 1829 Comment
  UCD128031  Sanicula laciniata R. N. Raynor 1935-3-2 s.n. Humboldt Fort Seward. Comment
  HSC21645  Sanicula tuberosa F. Morrell 1949-5-15 Humboldt Berry Summit Comment
  UC153999  Satureja douglasii J. P. Tracy 1905-6-25 2201 Humboldt immediate vicinity Eureka 0 Comment
  UC25417  Satureja douglasii J. Burtt Davy 1899-6-11 5412 Humboldt Hubbards Station North Coast Ranges Comment
  HSC98918  Saxifraga aprica Cara Witte 2008-7-1 784 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  JEPS26211  Saxifraga ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt near Ranger Station (Trinity Summit); Trinity Summit 1828 Comment
  JEPS42981  Saxifraga ferruginea Jos. P. Tracy 1932-7-18 10710 Humboldt head of Brett Hole (Trinity Summit); , Brett Hole Comment
  UC1198882  Saxifraga marshallii Joseph P. Tracy 1937-7-24 15511 Humboldt 2 mi se of Devil's Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC111699  Schoenoplectus pungens var. badius A. A. Heller 1924-7-21 13868 Humboldt Plentiful in a drier part of a salt marsh at Eureka. Comment
  HSC45967  Schoenoplectus tabernaemontani J. P. Smith 1973-5-26 6804 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC668008  Scirpus microcarpus Joseph P. Tracy 1932-7-14 10561 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC110929  Scirpus microcarpus Carl B. Wolf 1937-9-11 9324 Humboldt Redwood Highway, 3 mi. No of Orick at Davison's Ranch on Prairie Creek. 60 Comment
  HSC38831  Scirpus microcarpus R. Sutherland 1976-8-13 20 .13876 Humboldt Redwood Creek, Whittemore Grove 87 Comment
  HSC45972  Scirpus microcarpus J. P. Smith 1973-5-26 6859 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC62974  Scirpus microcarpus J. M. DiTomaso 1979-5-16 1014 Humboldt Corner of LK Wood and 14th St., Arcata Comment
  UC1222484  Scirpus microcarpus Joseph P. Tracy 1949-9-1 18533 Humboldt Dusky's Spring Trinity River Valley, at Willow Creek, at Dusky's Spring (Willow Creek, Trinity River Valley) 152 Comment
  UC668017  Scirpus pungens Joseph P. Tracy 1927-9-25 8368 Humboldt at Eureka (near bay shore) 6 Comment
  UC249514  Scoliopus bigelovii Joseph P. Tracy 1922-5-14 6049 Humboldt Kneeland Prairie 762 Comment
  SEINET12050514  Scoliopus bigelovii F. H. Utech 1988-1 88 -025 Humboldt 2 mi W of Pepperwood along Ave of the Giants (alt US 101), mile marker 45.40 65 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
  HSC21131  Scrophularia californica A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction, 100 yards W of Lindsey Creek Comment
  HSC21126  Scrophularia californica W. F. Nickel 1965-5-14 Humboldt N Arcata near Park Plaza Apts. Comment
  POM126380  Scutellaria antirrhinoides Chesnut, E. R. Drew 1888-7-10 s.n. Humboldt Jarnigan s. Comment
  UC1239710  Scutellaria antirrhinoides Joseph P. Tracy 1919-5-31 5154 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC154265  Scutellaria tuberosa Mrs. M. H. Manning June, 1901 94 Humboldt Hupa Valley Comment
  HSC41479  Sedum laxum subsp. heckneri M. A. Baker 1977-6-13 383 Humboldt 4 mi. S of new confluence of the Klamath River and Bluff Creek Comment
  JEPS26915  Sedum laxum subsp. heckneri Wayne Roderick 1961-7-10 61 .989 Humboldt 6.6 mi n Orleans (Klamath River, 1.4 mi s of Siskiyou County line (Somesbar)); Klamath River, n of Orleans 152 Comment
  HSC57880  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-31 11418 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC98735  Sedum radiatum Cara Witte 2007-7-20 552 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  RSA0081472  Sedum spathulifolium C. B. Wolf 1934-7-2 5858 Humboldt One mile from Bald Mt. on road to Korbel. 762 Comment
  UC1198829  Sedum spathulifolium Joseph P. Tracy 1913-6-26 4347 Humboldt opposite Buck Mountain (Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley Van Duzen River, Buck Mountain 762 Comment
  HSC28237  Sedum spathulifolium var. pruinosum Clifton Raymond Chesbrough 1973-6-19 100 Humboldt 0.5 mi. N of College Cove along coast Comment
  HSC48309  Sedum spathulifolium var. spathulifolium R. Sutherland 1978-4-22 1 .22478 Humboldt Along King's Crest Trail 1098 Comment
  SEINET200600  Selaginella oregana J. P. Tracy 1928-4-29 8426 Humboldt Prairie Creek 153 Comment
  JEPS37085  Senecio glomeratus W. L. Jepson 1902-6 1935 Humboldt Korbel to Angel's Ranch Comment
  UC1223022  Senecio glomeratus Joseph P. Tracy 1950-9-10 19360 Humboldt 1 mi n Capetown; Bear River Ridge 304 Comment
  CAS-BOT-BC364019  Senecio integerrimus var. major Doris Kildale 1931-5-10 10583 Humboldt Snow Camp Comment
  JEPS109412  Senecio integerrimus var. ochroleucus D. W. Taylor 2004-6-24 19144 Humboldt Spike Buck Mountain, north slope. Comment
  CDA7631  Senecio jacobaea E. Eberwein 1958-9-4 1197 -58 Humboldt William Lowry property, Bear River, Ferndale. 0 Comment
  UCD135616  Senecio minimus Linda M. Barker 1976-8-2 1677 Humboldt 3 miles west of Arcata. Comment
  UCSB30588  Senecio minimus Edwards, David 1974-8-14 Humboldt S. side of dirt road, ca. 1/2-3/4 mi. in on dirt road from jct. with Fickle Hill Rd., ca. 1/4 mi. E. of jct. of Fickle Hill Rd. and Park Ave., Arcata Comment
  HSC67442  Senecio vulgaris J. P. Smith 1971-10-6 4945 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS48274  Sequoia sempervirens Willis Corbitt 1931-4-8 Humboldt Scotia Comment
  NY64456  Sequoia sempervirens W. L. C. Muenscher 1939-4-15 15056 Humboldt Blair Grove, near Dyersville Comment
  NY64461  Sequoia sempervirens J. P. Tracy 1940-10-17 16770 Humboldt Dyerville Comment
  SD43483  Sequoia sempervirens Carl B. Wolf 1944-10-25 11469 Humboldt along the Eel River Valley, Redwood Highway, 2.4 miles south of Scotia 60 Comment
  HSC100570  Sidalcea diploscypha Carl C. Marshall 467 Humboldt Throughout Humboldt. Comment
  CAS-BOT-BC205571  Sidalcea malachroides Joseph P. Tracy 1938-6-7 15860 Humboldt Canyon Creek, 5 miles SE of Korbel 152 Comment
  HSC100572  Sidalcea malviflora Carl C. Marshall Jun 1887 445 Humboldt East branch. Comment
  HSC35614  Sidalcea malviflora Thomas W. Nelson, B. Reinhardt 1975-7-30 2110 Humboldt Whiting Spring Comment
  HSC38096  Sidalcea malviflora subsp. nana Thomas W. Nelson, James Nelson 1976-5-30 2617 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1299199  Sidalcea malviflora subsp. patula Freed W. Hoffman 1946-5-20 963 Humboldt near Capetown; near Capetown Comment
  HSC103134  Silene bolanderi M. Mesler 2010-5-30 818 Humboldt Rd from Hwy 3 to Wildwood, near Gemmill Gulch 1003 Comment
  HSC103772  Silene bolanderi M. R. Mesler 2014-6-4 1634 Humboldt Burr Valley Road near Dinsmore 1012 Comment
  CAS-BOT-BC384547  Silene bridgesii Henry M. Pollard 1948-7-17 s.n. Humboldt Woods near Orleans Comment
  HSC58347  Silene campanulata Overton, Butler 1979-8-2 12677 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC98544  Silene campanulata subsp. glandulosa Cara Witte 2008-6-11 710 Humboldt National Forest Road 5N10. 2 miles south of intersection with Forest Service Road 5N41. 1286 Comment
  CAS-BOT-BC387078  Silene gallica Doris K. Kildale 1927-5-15 3166 Humboldt Cape Mendocino Comment
  HSC102089  Silene grayi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 992 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC63145  Silene grayi M. A. Baker 1979-6-27 937 Humboldt Below Trinity Summit at head of Oregon Creek Comment
  UC13555  Silene hookeri W. C. Blasdale 1896-6-8 Humboldt Grahams Grahames ((Grahames?)) Comment
  CAS-BOT-BC181231  Silene hookeri subsp. bolanderi L. R. Abrams 1918-6-15 7114 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  RSA168875  Silene hookeri subsp. bolanderi Joseph P. Tracy 1950-6-23 18880 Humboldt Burr Valley, on NW slope of Buck Mountain. 1067 Comment
  CAS-BOT-BC389262  Silene lemmonii Joseph P. Tracy 1932-7-12 10452 Humboldt Trinity Summit. Near Corral Prairie 1584 Comment
  UC1198791  Sisymbrium altissimum Joseph P. Tracy 1929-8-18 8660 Humboldt on Van Duzen River, Dinsmore's Ranch, opposite Buck Mountain Van Duzen River; Northern Coast Ranges, , Dinsmore's Ranch 670 Comment
  HSC90646  Sisyrinchium californicum Gail Newton 1983-6-5 3553 Humboldt Elk River Wildlife Area, Eureka Comment
  JEPS62151  Smilacina stellata Lincoln Constance 1934-6-2 783 Humboldt Bull Cr. road to mouth of Bull Cr. (and up creek); South Fork Eel River, Bull Creek Region Comment
  UC30080  Smilacina stellata Joseph Burtt Davy Jun 21 1899-Jun 23 1899 5834 Humboldt 300 ft below summit; Trinity Summit Comment
  RSA46495  Solanum americanum Doris K. Kildale 1925-9-26 1362 Humboldt Mouth of Mad River. Comment
  RSA47109  Solanum americanum Doris K. Kildale 1926-3-22 1601 Humboldt Helena Creek. Comment
  HSC21307  Solanum nigrum Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  UC577351  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15313 Humboldt near Bosworth's (Larrabee Creek); Northern Coast Ranges, Larrabee Creek 457 Comment
  UC585974  Solanum umbelliferum Joseph P. Tracy 1924-5-4 6668 Humboldt 6 mi w of Bridgeville (Van Duzen River); Van Duzen River 121 Comment
  RSA15565  Solidago canadensis subsp. elongata C. B. Wolf 1927-8-29 1198 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  SD58226  Solidago canadensis subsp. elongata Joseph P. Tracy 1937-8-12 15654 Humboldt Snow Camp 1399 Comment
  CAS-BOT-BC365436  Solidago elongata Doris K. Kildale 1926-7-11 2369 Humboldt Capetown - Ferndale road near Mountain Glen Comment
  UC1223177  Solidago elongata Joseph P. Tracy 1949-8-11 18458 Humboldt Snow Camp 1402 Comment
  UC581769  Solidago elongata Joseph P. Tracy 1937-8-12 15654 Humboldt Snow Camp 1402 Comment
  SEINET6417801 Image available Solidago occidentalis S. K. Harris, C. Wilder 1938-9-7 879 Humboldt Van Dusen River, above Blue Slide Comment
  CHSC55885  Solidago spathulata L. P. Janeway 1987-7-31 2545 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. On dunes. 3 Comment
  HSC12531  Solidago spathulata Wilbur Peterson 1970-10-7 22 Humboldt McKinleyville Beach at the end of Murray Rd. Comment
  HSC46962  Solidago spathulata J. P. Smith, Thomas W. Nelson 1977-6-30 9219 Humboldt Samoa Peninsula just E of the drag strip. Comment
  JEPS95017  Solidago spathulata Vernon Oswald and Lowell Ahart 1997-9-4 8852 Humboldt 1.1 mi s of Highway 255 (North Spit of Humbold Bay, w side of New Navy Base Road); North Spit of Humbold Bay 6 Comment
  SBBG62991  Solidago velutina var. californica R. Hartwell 1938-8-4 Humboldt near Eureka Comment
  HSC67888  Sonchus oleraceus J. P. Smith 1973-5-26 6862 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA430519  Sonchus oleraceus Lyman Benson 1929-7-12 1796 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  HSC21343  Sparganium angustifolium D. E. Anderson 1963-9-29 2854 Humboldt Fish Lake. Comment
  RSA246788  Sparganium angustifolium subsp. emersum Robert F. Thorne, Percy C. Everett 1965-8-9 35321 Humboldt Clam Beach County Park: along highway. 3 Comment
  RSA54125  Sparganium angustifolium subsp. emersum Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  UC1103519  Sparganium emersum var. emersum Joseph P. Tracy 1934-10-21 13692 Humboldt in front of s end Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  HSC89261  Spartina alterniflora Anni Eicher 1989-4-20 366 Humboldt .5 mi. N of Samoa-Eureka bridge, E of State Hwy. 255, Humboldt Bay Comment
  OBI36628  Spartina densiflora David J. Keil 1983-7-2 17296 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  SBBG89225  Spartina foliosa A. Keedy 1988-9-18 8 Humboldt Jolly Giant Crk {near mouth}; Arcata Salt Marsh Comment
  CAS-BOT-BC389921  Spergula arvensis Robert F. Thorne; P. Everett 1965-8-8 35265 Humboldt N edge of Eureka, E of Hwy. 101 4 Comment
  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
  HSC82961  Spergularia macrotheca A. L. Eicher 1985-6-19 Humboldt SW side of mouth of Mad River Slough, Humboldt Bay. 0 Comment
  HSC43208  Spergularia rubra R. Sutherland 1976-8-18 8 .18876 Humboldt 183 Comment
  HSC97923  Spiraea douglasii Cara Witte 2007-6-19 291 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  RSA43849  Spiraea douglasii H. M. Pollard 1947-8-19 s.n. Humboldt Klamath River [N of] Redcap Creek. Orleans Region. Comment
  UC719818  Spiraea douglasii Rogers McVaugh 1941-8-3 6216 Humboldt ca 1.25 mi s Patrick's Point State Park, Headquarters Comment
  UCD114053  Spiraea douglasii Malcolm A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  HSC55076  Spiranthes romanzoffiana G. L. Clifton, Griswold 1979-7-31 11686 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC100154  Spirodela polyrhiza J. M. DiTomaso 1979-4-21 893 Humboldt Next to Hwy. 101 at Crannell Rd. exit between Westhaven and Mckinleyville Comment
  PASA1130  Stachys ajugoides Frank W. Peirson 1932-7-7 Humboldt Near Willow Creek Comment
  UC577316  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UCLA71146  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  CDA41013  Stachys ajugoides var. rigida T. C. Fuller 1962-8-6 9351 Humboldt Highway 299 to Blue Lake, 4.8 miles west of Willow Creek. 0 Comment
  RSA82582  Stachys albens F. W. Peirson 1923-7-11 3830 Humboldt 7 miles N of Arcata. Comment
  UC538020  Stachys arvensis Lyle W. Smith 1934-11-14 Humboldt Arcata Comment
  CDA40999  Stachys chamissonis T. C. Fuller 1968-7-3 17444 Humboldt Southwest corner of the fairgrounds, Van Ness Ave. and 5th Street, Ferndale. 0 Comment
  UCD126028  Stachys rigida James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SEINET12273954  Stachys rigida L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  RSA67572  Stellaria crispa P. A. Munz 1951-7-15 16550 Humboldt 5 miles N of Willow Creek 305 Comment
  HSC97968  Stipa lemmonii var. lemmonii Cara Witte, Michael Scott 2007-6-22 348 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  HSC98578  Stipa lemmonii var. lemmonii Cara Witte 2007-6-1 171 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N38. 1502 Comment
  HSC39717  Stipa miliacea D. E. Anderson, J. P. Smith 1971-6-28 - 1261 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  CAS-BOT-BC87611  Streptanthus tortuosus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mount Trail. 1524 Comment
  CAS-BOT-BC87616  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt South of airport, about 5 miles east of Kneeland. Comment
  HSC103294  Streptanthus tortuosus Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3014 Humboldt Six Rivers National Forest; ~ 1.7 mi. south of Berry Summit along Titlow Hill Road.; ~ 1.4 mi. west-northwest of Horse Mtn. Radio Tower. 980 Comment
  HSC74305  Streptanthus tortuosus M. A. Baker 1980-7-24 3205 Humboldt Near Orleans Mtn. 1625 Comment
  HSC74747  Streptanthus tortuosus Gail Newton 1981-7-24 2292 Humboldt Near Chaparral Mtn. 1512 Comment
  HSC99005  Streptanthus tortuosus var. tortuosus Cara Witte 2008-6-15 730 Humboldt Coldspring Camp. 1460 Comment
  HSC57689  Streptopus amplexifolius G. L. Clifton, Griswold 1979-7-25 10908 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC22724  Swertia albicaulis var. nitida Harley P. Chandler Jun 1901 1486 Humboldt Klamath River Northern Coast Ranges 426 Comment
  UC1239537  Symphoricarpos mollis Joseph P. Tracy 1908-6 2782 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  UC1199309  Symphyotrichum bracteolatum Joseph P. Tracy 1919-9-14 5209 Humboldt near mouth, (valley of Trinity River) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  HSC96471  Symphyotrichum chilense Gordon Leppig 1997-6-19 455 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC1174865  Symphyotrichum chilense P. C. Everett and E. K. Balls 1959-10-25 23960 Humboldt 1/4 mi w of, on hwy 299 to Arcata Willow Creek 502 Comment
  SEINET12275944  Symphytum asperum J. P. Tracy 1943-1 17448 Humboldt near Iverson dairy ranch, Arcata Comment
  JEPS26263  Synthyris reniformis Joseph P. Tracy 1924-2-10 6601 Humboldt Bald Mountain at Hungry Hollow; Bald Mountain 762 Comment
  UC1198052  Synthyris reniformis Joseph P. Tracy 1942-6-23 17230 Humboldt Trinity Summit near Box Camp; Trinity Summit 1524 Comment
  UC1198055  Synthyris reniformis Joseph P. Tracy 1927-4-23 7918 Humboldt Blue Lagoon; Northern Coast Region 6 Comment
  UC582545  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 Humboldt East Fork of Willow Creek Canyon]; Northern Coast Ranges 457 Comment
  UC1199278  Tanacetum balsamita Joseph P. Tracy 1936-9-18 15188 Humboldt Trinity River Valley, at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC376724  Tanacetum bipinnatum David D. Keck; J. Clausen 1935-6-16 3388 Humboldt Mouth of Little River Comment
  HSC6245  Tanacetum bipinnatum Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  RSA26843  Tanacetum camphoratum I. L. Wiggins 1940-7-10 9484 Humboldt Big Lagoon. Comment
  SBBG52996  Tanacetum camphoratum J. D. Hobson -Jul-1966 Humboldt Loleta Comment
  UC1409185  Tanacetum camphoratum Robert F. Thorne and P. Everett 1965-8-7 35224 Humboldt Somoa Peninsula 3 Comment
  UCSB25217  Tanacetum douglasii J. R. Haller 1967-6-17 2181 Humboldt collected 10.0 mi N, at Clam Beach County Park, along U S Highway 101 Arcata - Clam Beach County Park, U S Highway 101, and Arcata Comment
  CAS-BOT-BC85217  Taxus brevifolia Doris K. Kildale 1929-2-12 6954 Humboldt Willow Creek Canyon Comment
  HSC74647  Taxus brevifolia M. A. Baker 1980-5-17 1214 Humboldt Near Le Perron Peak 792 Comment
  SBBG319  Taxus brevifolia H. and M. Dearing 1939-6-23 3691 Humboldt E fork of Willow Crk 609 Comment
  UC54785  Taxus brevifolia P. E. Goddard Jul 1 1901-Aug 1 1901 127 Humboldt Mud Springs Trinity Summit Trail, Mud Springs Comment
  CAS-BOT-BC447406  Tellima grandiflora Kenneth Clark 1980-3-23 536 Humboldt Point Delgada; Alluvial terrace of south fork Dead Man's Gulch; Vascular Plants of Shelter Cove Comment
  HSC63225  Tellima grandiflora M. A. Baker 1979-5-6 483 Humboldt 2 km. S of Weitchpec Comment
  HSC89548  Tellima grandiflora M. Roantree 1985-5-2 30 Humboldt E side of Trinidad Head. Comment
  UC1196164  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1947-4-27 17672 Humboldt Metropolitan 30 Comment
  NY17194  Thuja plicata W. B. Cooke 1969-8-19 2222 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
  HSC56095  Tiarella trifoliata var. unifoliata G. L. Clifton 1979-7-31 11802 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  JEPS49715  Tiarella trifoliata var. unifoliata Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  UCR3923  Tiarella trifoliata var. unifoliata David Whistler, H. M. Whistler 1964-7-29 640729- 5 Humboldt 0.2 mi north of Meyers Flats on U.S. 101 75 Comment
  RSA29344  Tiarella trifoliata var. unifoliata E. K. Balls, Percy C. Everett 1953-10-11 18599 Humboldt Fleishman s Grove, north boundary, Hwy 101 between Miranda and Weott. 152 Comment
  RSA32652  Tiarella trifoliata var. unifoliata Doris K. Kildale 1925-6-28 833 Humboldt Lawrence Crk. Comment
  SD50778  Tiarella trifoliata var. unifoliata Darley F. Howe 1959-8-5 2809 Humboldt Drexel Grove, 5 miles north of Weott on #101 alternate Comment
  HSC100653  Tiarella unifoliata Carl C. Marshall Jun 1886 323 Humboldt Trail E of Hoopa. Comment
  SEINET12217530  Tiarella unifoliata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -291 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  CAS-BOT-BC447608  Tolmiea menziesii Volney Rattan 1903-6-9 s.n. Humboldt Long Bar, Klamath Comment
  RSA167305  Tolmiea menziesii Joseph P. Tracy 1950-7-15 19040 Humboldt Mouth of Raccoon Creek, 1 mile northeast of Patterson s Ranch, vicinity of Willow Creek. Comment
  BLMAR192  Torilis arvensis Donald Hazlett 1994-6-7 192 Humboldt King range, near horse Mt. Ridge rd 670 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
  JEPS63936  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2000 Humboldt S. Fork Trinity R., Martin's Ranch Comment
  CHSC63434  Toxicoscordion micranthum Vernon H. Oswald 1994-6-29 6359 Humboldt Tiltow Hill Rd. (Forest Rd. 1) at its intersection with 5N46, 4.6 mi S of Hwy. 299, S of Willow Creek. 1386 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
  HSC99835  Triantha occidentalis subsp. occidentalis T. Jimerson, J. Pageau 1979-8-10 728 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  UC1239715  Trichostema laxum Joseph P. Tracy 1921-10-9 5968 Humboldt Blue Lake, on gravel bar of Mad River Northern Coast Ranges 30 Comment
  HSC53982  Trichostema oblongum Griswold, Butler 1979-7-11 7057 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  BLMAR75  Trientalis latifolia Jennifer Anthony-Wheeler 1994-6-2 75 Humboldt IAQUA, growing by logging rd in shaded forest 853 Comment
  UC1602051  Trifolium albopurpureum var. dichotomum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 b Humboldt Hoopa Mt. Comment
  UC1197240  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1915-6-27 4659 Humboldt near Carlotta (Yager Creek); Northern Coast Ranges 60 Comment
  UC1197245  Trifolium albopurpureum var. dichotomum J. P. Tracy 1901-4-24 1039 Humboldt vicinity Eureka 0 Comment
  CDA4306  Trifolium angustifolium B. Morrison 1974-7-22 Humboldt Approximately six miles east of Capetown, on Bear River Road. 0 Comment
  RSA170210  Trifolium arvense Joseph P. Tracy 1941-7-26 16970 Humboldt Eureka (G Street near 9th) Comment
  UC162800  Trifolium barbigerum J. P. Tracy 1906-6-17 2491 Humboldt immediate vicinity Eureka 0 Comment
  UC16425  Trifolium barbigerum J. Burtt Davy 1899-6-17 5603 Humboldt Arcata Comment
  UC1223514  Trifolium barbigerum Joseph P. Tracy 1942-6-15 17120 Humboldt Englewood Prairie Comment
  UC1223478  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1933-5-20 12242 Humboldt Petrolia Mattole Valley Comment
  UC1197051  Trifolium dubium Joseph P. Tracy 1914-6-14 4502 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  HSC14986  Trifolium dubium J. L. Baker 1965-4-2 56 Humboldt Humboldt Meridain, 4 mi. N of Arcata on North Bank Rd. Comment
  HSC89573  Trifolium dubium M. Roantree 1985-5-15 46 Humboldt E side of Trinidad Head. Comment
  UCD108882  Trifolium dubium W. A. Williams 1951-6-14 s.n. Humboldt 3 miles E of Hydesville, Bech Ranch swale. Comment
  SEINET6934966  Trifolium eriocephalum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  RSA244958  Trifolium fragiferum Thomas W. Nelson 1973-7-24 1099 Humboldt On the flood plain of the Mad River at the north end of the Carson railroad bridge. Comment
  UC1197022  Trifolium fucatum Joseph P. Tracy 1906-6-10 2470 Humboldt nw slope Wragletown (lower foot); Northern Coast Ranges 152 Comment
  UC1197190  Trifolium gracilentum Joseph P. Tracy 1911-5-30 3194 Humboldt Bucksport Northern Coast Region, Humboldt Bay Comment
  UC1197195  Trifolium gracilentum J. P. Tracy 1899-6-2 106 Humboldt near Bucksport (immediate vicinity of Eureka) 0 Comment
  UC1197048  Trifolium hybridum J. P. Tracy 1901-6-16 1158 Humboldt immediate vicinity Eureka 0 Comment
  POM214886  Trifolium longipes subsp. elmeri Joseph P. Tracy 1932-7-13 10525 Humboldt Trinity Summit, Corral Prairie. Comment
  HSC44836  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3520 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  UC495657  Trifolium longipes var. elmeri Joseph P. Tracy 1936-7-13 10525 Humboldt Trinity Summit Klamath Mtns, Corral Prairie 1524 Comment
  UC1197232  Trifolium macraei Joseph P. Tracy 1923-6-18 6281 Humboldt near Mazeppa Ranch (Bear River Ridge); Northern Coast Ranges 30 Comment
  HSC15149  Trifolium microcephalum D. E. Anderson 1965-5-8 3645 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  HSC7238  Trifolium microcephalum J. R. Woodside 1963-5-19 2 Humboldt 1 1/4 mi. N of Fairhaven Comment
  UC160906  Trifolium microcephalum Joseph P. Tracy 1910-6-5 3144 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  HSC45145  Trifolium microdon R. Sutherland 1978-5-24 3 .24578 Humboldt Mckee Flat 287 Comment
  RSA168856  Trifolium microdon Joseph P. Tracy 1938-6-8 15867 Humboldt Samoa Sand dunes Comment
  HSC25987  Trifolium obtusiflorum Thomas W. Nelson 1970-9-3 219 Humboldt Mad River. Comment
  UC1223319  Trifolium obtusiflorum Joseph P. Tracy 1948-6-13 18060 Humboldt Garberville 243 Comment
  UC1197503  Trifolium obtusiflorum Joseph P. Tracy 1903-5-24 1916 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  UC180206  Trifolium obtusiflorum Joseph P. Tracy 1914-7-5 4545 Humboldt High Prairie Northern Coast Ranges, Bald Mtn 1066 Comment
  UC1197043  Trifolium pratense Joseph P. Tracy 1911-6-25 3264 Humboldt Eureka Northern Coast Region 0 Comment
  HSC12341  Trifolium pratense Steve Dorei 1970-10-26 113 Humboldt SE corner of Old Arcata Rd. and Freshwater Rd. Comment
  HSC28188  Trifolium pratense Richard Curtis 1973-9-27 21 Humboldt Bayside cutoff between Eureka and Arcata. Comment
  HSC15164  Trifolium repens J. R. Kahl 1962-5-4 20 Humboldt 2 mi. S of Trinidad along old Hwy. 101 30 Comment
  JEPS4140  Trifolium variegatum var. melananthum Joseph P. Tracy 1918-7-3 4990 Humboldt Shelter Cove North Coast Ranges 15 Comment
  UC201371  Trifolium variegatum var. melananthum Joseph P. Tracy 1918-7-3 4990 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  RSA195477  Trifolium variegatum var. variegatum C. R. Gunn 1963-6-3 2701 Humboldt 1/2 mile south of Korbel Comment
  RSA181629  Trifolium wormskioldii Doris K. Niles 1950-6-1 8 Humboldt Island in Eel River, Niles field. Comment
  CAS-BOT-BC451803  Triglochin maritima Joseph P. Tracy 1933-8-22 12988 Humboldt Mouth of Eel River 3 Comment
  HSC36261  Triglochin maritima John Rehling 1974-8-20 23 Humboldt Big Lagoon Bog Comment
  HSC75735  Trillium albidum Bill Copeland 1980-6-26 296 Humboldt Near Murphy Meadow 914 Comment
  UC667134  Trillium angustipetalum Joseph P. Tracy 1928-4-29 8418 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  HSC24377  Trillium ovatum J. O. Sawyer 1970-6-24 2278 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC83461  Trillium ovatum R. N. Raynor 1935-3-2 Humboldt Fort Seward Comment
  HSC34646  Trillium ovatum Peter R. Leinau 1975-4-5 1 Humboldt Block 11 of the Union St. addition to the city of Arcata, 1640 Union St. Comment
  HSC59702  Trillium ovatum Maralyn O'Meara 1973-6-12 204 Humboldt Above Clear Lake Comment
  HSC99366  Trillium ovatum subsp. ovatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 15 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC169335  Triodanis perfoliata Joseph P. Tracy July, 1908 2912 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges, ridge btw Van Duzen and Mad Rivers 914 Comment
  HSC72575  Triphysaria eriantha J. P. Smith, J. O. Sawyer 1976-5-2 8637 Humboldt Redwood Valley Comment
  HSC26329  Triphysaria eriantha subsp. eriantha Thomas W. Nelson 1971-4-16 382 Humboldt N of Coast Guard Station on Samoa Peninsula Comment
  CHSC40207  Triphysaria pusilla L. P. Janeway 1984-5-13 772 Humboldt Along the Kneeland/ Bridgeville Road ca 11 mi east of the Kneeland post office. 566 Comment
  SBBG68601  Triphysaria versicolor subsp. faucibarbata S. W. Hutchinson -Apr-1927 106 Humboldt Humboldt County [no specific locality] 30 Comment
  UC212882  Trisetum canescens Joseph P. Tracy 1919-5-31 5157 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC193518  Trisetum cernuum John Thomas Howell; Gordon H. True; Lewis S. Rose 1972-6-5 48819 Humboldt Patrick Point State Park Comment
  HSC13417  Trisetum cernuum D. J. Wilder 1965-5-15 35 Humboldt 2 mi. E of Freshwater on Road to Kneeland Comment
  HSC39398  Trisetum cernuum D. E. Anderson, J. P. Smith 1971-6-28 - 1252 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  CAS-BOT-BC519142  Triteleia hyacinthina H. C. Cantelow 1939-6-4 3917 Humboldt Road to Bridgeville 4 1/2 miles west of Alder Point Comment
  CAS-BOT-BC519144  Triteleia hyacinthina Doris K. Kildale 1925-6-28 793 Humboldt Kneeland Prairie, Bald Hills 762 Comment
  CAS-BOT-BC526353  Triteleia laxa Ella Dales Cantelow 1939-6-4 3916 Humboldt 11.3 miles north of Garberville, road to Alder Point Comment
  RSA378052  Triteleia laxa Hutchinson 1927-05 s.n. Humboldt [No locality information provided] Comment
  UC1222687  Triteleia laxa Joseph P. Tracy 1950-6-8 18755 Humboldt windswept flat s Cape Mendocino; Davis Creek Mouth Comment
  CAS-BOT-BC85892  Tsuga heterophylla C. B. Wolf 1930-10-25 1019 Humboldt Along the Blue Lake to Willow Creek road (Lord Ellis Road), 12 mi. above Blue Lake 304 Comment
  UCR6818  Tsuga heterophylla David Whistler, H. M. Whistler 1964-8-1 640801- 2 Humboldt Coast Range, US Hwy 299, 6 mi east of Blue Lake Comment
  CAS-BOT-BC73932  Turritis glabra Doris K. Kildale 1926-4-30 1949 Humboldt Fruitland Hill - Harris Road divided between north and south forks of Eel River. Comment
  SEINET12102546  Umbellularia californica J. P. Tracy 1950-1 18600 Humboldt Vicinity of Carlotta 30 Comment
  POM160273  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt Around Humboldt Bay. Elk River Valley. 30 Comment
  HSC24098  Vaccinium cespitosum J. O. Sawyer 1971-6-14 2379 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  UC562245  Vaccinium membranaceum Joseph P. Tracy 1935-7-22 14121 Humboldt Forks of Tish-Tang-A-Tang Creek Trinity Summit 1371 Comment
  CAS-BOT-BC199325  Vaccinium ovatum Ira L. Wiggins 1930-6-25 4613 Humboldt 2 miles north of Samoa Comment
  HSC104091  Vaccinium ovatum Monica Rodriguez, William A. Worley 2015-2-21 9 Humboldt Rock Creek Ranch; 8.2 mi. along South Fork Rd. from Redwood Highway 199. 131 Comment
  HSC31334  Vaccinium ovatum Larry E. DeBuhr, G. D. Wallace 1972-5-22 615 Humboldt Del Norte Coast Redwood State Park, Damnation Trail Comment
  HSC95645  Vaccinium ovatum Andrea Pickart 2002-4-5 41 Humboldt Lanphere Dunes 15 Comment
  POM118412  Vaccinium ovatum Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  RSA2925  Vaccinium ovatum C. B. Wolf 1931-8-29 1240 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  UC1197779  Vaccinium ovatum Joseph P. Tracy 1922-5-21 6052 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  UCD118072  Vaccinium ovatum Linda M. Barker 1976-4-30 1423 Humboldt 3 miles west of Arcata. Comment
  UC1197777  Vaccinium parvifolium Joseph P. Tracy 1925-2-15 6937 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC602499  Valeriana californica Joseph P. Tracy 1935-7-30 14381 Humboldt Salmon Summit 2103 Comment
  HSC102033  Valeriana sitchensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 936 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  UC1239583  Valeriana sitchensis subsp. scouleri Mrs. Archie Cathey 1933-5-6 Humboldt Eel Rock 91 Comment
  CAS-BOT-BC76038  Vancouveria hexandra C. Hart Merriam 1922-7-5 s.n. Humboldt Fortuna. Carson Woods. Comment
  CAS-BOT-BC76056  Vancouveria hexandra Greg de Nevers 2001-4-17 12244 Humboldt Humboldt Redwoods State Park. 91 Comment
  HSC57994  Vancouveria hexandra G. L. Clifton, Griswold 1979-7-31 11757 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1196350  Vancouveria hexandra J. P. Tracy 1901-6-10 1135 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC854707  Vancouveria hexandra Elizabeth Parsons Hawver June 1915 Humboldt Carlotta 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
  HSC24385  Vancouveria planipetala J. O. Sawyer 1970-6-24 2222 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC31199  Vancouveria planipetala D. E. Anderson 1972-6-20 5746 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC70385  Vancouveria planipetala M. A. Baker 1980-6-7 1860 Humboldt Near Ammon Creek. 732 Comment
  CAS-BOT-BC528851  Veratrum californicum Joseph P. Tracy 1934-6-21 13244 Humboldt Local in wet place at Still Ranch 2 mi. S of Fields Landing (exterminated there about 1937) 6 Comment
  UC585990  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1933-8-13 12965 Humboldt near Blue Lake (along Mad River) 15 Comment
  UC154022  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1908-6 2775 Humboldt opposite Buck Mt; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1222772  Veronica americana Joseph P. Tracy 1950-6-8 18727 Humboldt 7 mi s of Ferndale (summit of Bear River Ridge, near Mount Glen Ranch); Bear River Ridge 609 Comment
  JEPS26268  Veronica arvensis Joseph P. Tracy 1906-6-10 2482 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC37846  Veronica persica Thomas W. Nelson, James Nelson 1976-3-11 2265 Humboldt Beside Eel River just N of terminus of Singley Rd. Comment
  HSC90767  Veronica scutellata Gail Newton 1982-5-30 3561 Humboldt Elk River Wildlife Area, Eureka 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
  HSC48401  Veronica serpyllifolia subsp. humifusa Brad Klipfel 1973-6-10 90 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC147901  Veronica serpyllifolia subsp. humifusa Joseph P. Tracy 1910-4-17 3115 Humboldt Valley of Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, Elk River 0 Comment
  JEPS12698  Viburnum ellipticum P. E. Goddard 1908-7-20 Humboldt 1 mi s Harris Comment
  CHSC31325  Vicia Mark Stopher 1980-6-4 101 Humboldt Uncommon in diked off upland habitat along Elk River near Hwy 101 bridge. 1 Comment
  HSC56370  Vicia americana var. americana Griswold, Butler 1979-7-11 6391 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  CHSC40209  Vicia benghalensis L. P. Janeway 1984-5-27 832 Humboldt On west-facing riprap of the Fortuna levee near the Sandy Prairie Road. On the east side of Eel River. 12 Comment
  HSC31735  Vicia gigantea Donald Spalinger 1974-4-20 17 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  HSC89513  Vicia gigantea M. Roantree 1985-4-25 7 Humboldt E side of Trinidad Head Comment
  RSA755059  Vicia hirsuta Robert F. Thorne, Percy C. Everett 1965-8-8 35266 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  HSC100544  Vicia sativa Carl C. Marshall Sep 1887 442 Humboldt Salmon Creek. Comment
  UC1197473  Vicia sativa subsp. nigra J. P. Tracy 1901-5-21 1102 Humboldt immediate vicinity Eureka 0 Comment
  HSC15273  Vicia sativa subsp. sativa W. F. Nickel 1965-5-12 Humboldt On H.S.C. campus behind the Biological Sciences building Comment
  CAS-BOT-BC94771  Vicia tetrasperma R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 831 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  HSC71614  Vicia tetrasperma J. P. Smith 1973-5-26 6832 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC524122  Vicia villosa subsp. villosa Ira L. Wiggins 1932-7-7 5880 Humboldt near Samoa Comment
  UC604647  Vinca major Joseph P. Tracy 1938-4-5 15703 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC3225  Vinca major D. K. Smith 1968-2-2 4 Humboldt On the bank of Crannell Rd. past the bridge Comment
  BLMAR258  Viola adunca Jennifer Anthony-Wheeler 1998-4-22 258 Humboldt King range, strawberry rock grazing allotment 280 Comment
  RSA24335  Viola adunca Carl B. Wolf 1941-2-25 9957 Humboldt Between Freshwater Lagoon and Stone Lagoon, 1/8 mile back from Ocean. 30 Comment
  RSA46778  Viola adunca Doris Kildale Gillespie 1937-8-26 15342 Humboldt Christmas Prairie. Comment
  UC1761620  Viola adunca J. P. Tracy 1901-6-23 1168 Humboldt Eureka Comment
  HSC38515  Viola cuneata D. E. Anderson, J. P. Smith 1971-6-18 - 1085 Humboldt Horse Mtn. Comment
  UC1198446  Viola cuneata Joseph P. Tracy 1927-6-12 8214 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC41239  Viola cuneata Brad Klipfel 1974-5-27 378 Humboldt Horse Mtn. NW of the towers Comment
  HSC21797  Viola glabella R. D. Modafferi 1965-3-19 56 Humboldt 2.1 mi. N of Trinidad on Trinity St. 305 Comment
  HSC33056  Viola hallii Thomas W. Nelson 1974-5-7 1234 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC97502  Viola hallii C. Witte 2007-5-8 3 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  HSC96958  Viola hallii Ryoko Ito, Shauna McDonald 2007-6-4 2 Humboldt Coldspring Camp, 7.4 mi. above Hwy. 299; off FS road NF1, on FS road 5N27 1433 Comment
  HSC32842  Viola ocellata Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1198454  Viola ocellata Joseph P. Tracy 1911-7-7 3403 Humboldt [Viz.] Ridge n of Willow Creek, between Willow and Campbell Creeks, near the summit Willow Creek; Northern Coast Ranges, Brannan Mountain 914 Comment
  HSC21876  Viola praemorsa subsp. praemorsa Elrid H. Spinas 1948-5-15 6 Humboldt Horse Mtn. Comment
  HSC34962  Viola praemorsa subsp. praemorsa Thomas W. Nelson 1975-5-24 1874 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC99094  Viola praemorsa subsp. praemorsa C. Witte 2007-5-8 7 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  HSC32131  Viola purpurea subsp. purpurea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5591 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  SEINET200805 Image available Viola quercetorum J. P. Tracy 1913-6-17 4149 Humboldt Burr Valley NW slope of Buck Mountain 1067 Comment
  UC1198436  Viola sempervirens Joseph P. Tracy 1933-3-26 10938 Humboldt Big Lagoon 30 Comment
  UC35268  Viola sheltonii W. C. Blasdale 1896-6-9 Humboldt top of South Fork Mountain Comment
  HSC98569  Viola sheltonii Cara Witte 2008-6-9 691 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1503 Comment
  UC165807  Vitis californica Joseph P. Tracy 1911-7-5 3333 Humboldt Willow Creek Northern Coast Ranges ((tributary of Trinity River), near its mouth) 152 Comment
  UCD16884  Vitis californica H. Olmo 1934-9-30 s.n. Humboldt California. Humboldt County: on highway near Blue Lake. Comment
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Jun 14 2012
  HSC9826  Vulpia bromoides L. M. Malloy 1965-5-14 50 Humboldt 0.5 mi. W of Alliance Store along Alliance Rd. Comment
  HSC9830  Vulpia bromoides T. L. Ackerman 1964-4-10 30 Humboldt At Turner Draw on U.S. 101, near Mad River. Comment
  CHSC19731  Vulpia microstachys D. E. Anderson; J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt Ca. 3 miles west of Willow Creek along Three Creeks Road. Comment
  CAS-BOT-BC184236  Vulpia microstachys var. pauciflora Henry M. Pollard 1948-7-19 s.n. Humboldt Between Orleans and Van Fleet ranch Comment
  UC1145190  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-5-29 14825 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UC525652  Vulpia microstachys var. pauciflora Joseph P. Tracy 1926-5-2 7439 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC9928  Vulpia myuros H. E. Parks, S. T. Parks Jun 1937 5897 Humboldt Spruce Cove. Trinidad. 61 Comment
  HSC36513  Whipplea modesta A. M. Montalvo, J. D. Ackerman 1973-4-29 76 Humboldt 2 mi. NE of Kneeland on rd. to Maple Creek 457 Comment
  HSC40231  Whipplea modesta J. P. Smith, J. O. Sawyer 1976-5-2 8621 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  HSC97495  Whipplea modesta Cara Witte 2007-5-29 133 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  CAS-BOT-BC77813  Woodwardia fimbriata Doris K. Kildale 1926-8-8 2451 Humboldt Bull Creek Flat Comment
  JEPS60113  Woodwardia fimbriata W. L. Jepson 1936-8-15 17903 Humboldt Grizzly Creek, Van Duzen River Grizzly Creek; Van Duzen River Comment
  HSC6320  Wyethia angustifolia J. F. Knezevich 1968-5-14 439 Humboldt 11 mi. S of Ferndale on rd. to Cape Mendocino 305 Comment
  UC176305  Wyethia angustifolia Joseph P. Tracy 1913-6-20 4226 Humboldt lower foothills nw slope Buck Mountain; Northern Coast Ranges, nw slope lower foothills Buck Mt 762 Comment
  CAS-BOT-BC326985  Wyethia longicaulis W. L. Colwell 1957-8-6 52 Humboldt Eleven miles northeast of Bridgeville near Six Rivers National Forest 1295 Comment
  POM192569  Wyethia longicaulis H. E. Parks 1930-05 0740 Humboldt Laribee Valley Comment
  UC1199273  Wyethia longicaulis Joseph P. Tracy 1933-7-25 12897 Humboldt near Clear Lake; North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC527082  Xerophyllum tenax Doris K. Kildale 1926-4-25 1814 Humboldt Hoopa Mountain 792 Comment
  UC906657  Yabea microcarpa Joseph P. Tracy 1946-1-15 17519 Humboldt Willow Creek; Trinity River Valley 152 Comment
  SEINET12197025  Zauschneria californica E. A. York 1990-1-10 2675 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC43850  Zeltnera muehlenbergii Maralyn O'Meara 1974-7-17 557 Humboldt Kneeland Comment
  HSC98861  Zigadenus micranthus Cara Witte 2007-5-29 128 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC176187  Zigadenus micranthus var. micranthus Joseph P. Tracy 1912-6-9 3692 Humboldt Alton Northern Coast Region 30 Comment



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