Search Results — 2000 specimen records retrieved (1356 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77928  Abies G. A. Coleman 1901-7-26 s.n. Humboldt Near Acorn Comment
  UC1193117  Abies grandis P. J. Zinke 1950-9-21 163 Humboldt Salmon Creek 1 mi upstream from Mill Creek Salmon Creek, Quad. 29C1 152 Comment
  CAS-BOT-BC73465  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Six Rivers National Forest - extension of known range, Horse Trail Ridge, southwest slope. 1828 Comment
  SD41405  Abronia latifolia Edith A. Purer 1932-7-30 4680 Humboldt South of Orick Comment
  SD41412  Abronia latifolia Edith A. Purer 1932-7-27 4154 Humboldt Near Samoa Comment
  HSC100573  Abronia latifolia Carl C. Marshall May 1885 38 Humboldt Sea shore, Humboldt Bay. Comment
  RSA0025086  Abronia latifolia T. S. Elias, Barbara A. Elias 1987-8-24 10621 Humboldt Prairie Creek Redwoods State Park, Gold Bluffs Beach. Comment
  RSA183640  Acer circinatum D. E. Anderson 1965-5-8 3627 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  HSC98961  Acer glabrum var. torreyi Cara Witte 2008-6-13 728 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  UC165822  Acer macrophyllum Joseph P. Tracy 1911-7-9 3461 Humboldt along Willow Creek Northern Coast Ranges, Trib of Trinity River, Willow Cr ((Tributary of Trinity River), near its mouth) 152 Comment
  CAS-BOT-BC28589  Achillea millefolium David D. Keck 1938-8-5 4775 Humboldt Big Lagoon Comment
  UC1192145  Achillea millefolium Malcolm A. Nobs and S. Galen Smith 1949-8-3 1189 Humboldt southern outskirts of Eureka Comment
  UCD128345  Achillea millefolium James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UCD128333  Achillea millefolium H. E. Parks; S. T. Parks 1943-8-1 24246 Humboldt Egg Point, Trinidad. 121 Comment
  HSC3334  Achlys triphylla D. E. Anderson 1962-5-1 2201 Humboldt 1 mi. W of Hoopa Comment
  HSC73767  Achlys triphylla Gail Newton 1980-7-20 1609 Humboldt Near Bell Swamps 1426 Comment
  CAS-BOT-BC400019  Achlys triphylla Doris K. Kildale 1926-4-30 1923 Humboldt Camp Grant, South Fork of Eel River Comment
  HSC100397  Achlys triphylla Carl C. Marshall Jun 1886 328 Humboldt Hills. Comment
  HSC3336  Achlys triphylla William J. Ferlatte 1968-5-5 1125 Humboldt Hairpin turn on old Hwy. 299 305 Comment
  SDSU13751  Achlys triphylla subsp. triphylla D. F. Howe 1969-6-4 4629 Humboldt 14.6 miles east of Alton on #36. 91 Comment
  JEPS47775  Achlys triphylla subsp. triphylla Milo S. Baker 1923-7-29 166 Humboldt along hwy. near Lawrence Creek Comment
  SEINET5585535 Image available Achnatherum lemmonii Joseph P. Tracy 1938-1 15968 Humboldt Panther Gap, on the road from Bull Creek to upper Mattole 823 Comment
  CAS-BOT-BC216454  Achnatherum occidentale subsp. californicum H. E. Parks; Joseph P. Tracy 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  SBBG67348  Acmispon americanus R. Hartwell 1938-8-3 98 Humboldt near Weott Comment
  HSC71610  Acmispon micranthus J. P. Smith, Steve Selva 1970-6-14 3845 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC668268  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp 1402 Comment
  UC1222584  Aconitum columbianum Joseph P. Tracy 1950-7-31 19242 Humboldt n.e. side of top Grouse Mt. 1524 Comment
  HSC55857  Actaea rubra G. L. Clifton, Griswold 1979-7-25 10846 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1222569  Actaea rubra Joseph P. Tracy 1950-7-2 18977 Humboldt below Grizzly Camp (along creek at crossing of Little Hors Linto Creek); Trinity Summit Comment
  JEPS33912  Adenocaulon bicolor W. L. Jepson 1932-7-27 16428 Humboldt Bull Creek 106 Comment
  UC169341  Adenocaulon bicolor Joseph P. Tracy 1912-7-27 3880 Humboldt Kneeland Prairie 762 Comment
  HSC97952  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  CAS-BOT-BC62298  Adiantum aleuticum Mrs. H. C. Cantelow 1935-6-13 935 Humboldt E. of Arcata Comment
  HSC79503  Adiantum aleuticum Kenneth Clark 1980-6-14 691 Humboldt Shelter Cove, N fork of Dead Man's Gulch 84 Comment
  HSC97560  Adiantum aleuticum Cara Witte 2007-6-1 161 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1298 Comment
  POM347034  Adiantum aleuticum Lyman Benson 1928-7-13 487 Humboldt Weatt Ranger Station 61 Comment
  RSA137319  Adiantum jordanii I. L. Wiggins 1957-6-21 14137 Humboldt Margin of grassy slide area on east side of road, 1 mile south of Garberville Comment
  UC709442  Aesculus californica Joseph P. Tracy 1941-6-15 16014 Humboldt Mattole Valley Northern Coast Ranges (hillside near Honeydew bridge) 152 Comment
  UC165015  Ageratina occidentalis Joseph P. Tracy 1911-7-10 3557 Humboldt along Willow Creek ((tributary of Trinity River, Humboldt County), near its mouth); Northern Coast Ranges, Willow Creek 304 Comment
  UC194430  Ageratina occidentalis P. E. Goddard 1907-7-14 b 128 Humboldt along Van Duzen <River> Van Duzen <River> Comment
  HSC98959  Agoseris grandiflora Cara Witte 2008-7-28 956 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1592 Comment
  SEINET202623 Image available Agoseris grandiflora Joseph P. Tracy 1942-7-18 17275 Humboldt Garberville north end of town. Comment
  UC1125462  Agoseris grandiflora var. grandiflora H. L. Person 1932-7-20 19460 Humboldt highway near Korbel; Eureka Quadrangle Comment
  JEPS79803  Agoseris heterophylla Joseph P. Tracy 1933-5-30 12417 Humboldt (near Garberville) Redway 152 Comment
  UC249886  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6283 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  CAS-BOT-BC127287  Agrostis exarata Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  HSC99507  Agrostis exarata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 167 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
  UC526885  Agrostis exarata Joseph P. Tracy 1933-7-10 12656 Humboldt Trinidad Northern Coast Region 60 Comment
  HSC76547  Agrostis gigantea Teresa Prendusi 1981-7-23 341 Humboldt Near Black Mtn. 890 Comment
  HSC98744  Agrostis gigantea Cara Witte 2007-7-12 522 Humboldt Forest Service Road 5N10. Approximately 3 miles from intersection with Ammon Ridge Road. 1306 Comment
  CAS-BOT-BC139501  Agrostis hallii A. G. Vestal 1937-6-23 s.n. Humboldt Orick. Comment
  CAS-BOT-BC139504  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  UC187118  Agrostis hallii Joseph P. Tracy 1911-7-4 3288 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity 182 Comment
  UCD52675  Agrostis hallii P. B. Kennedy 1923-6-14 305 Humboldt Stoddard store, near Garberville. Comment
  CHSC114091  Agrostis idahoensis Jennifer Buck; Danielle Roach 2009-8-19 SFM 06 C Humboldt Kerlin Fen, South Fork Mountain; UTM Zone 10N, 453899E, 4494304N. 1633 Comment
  HSC89897  Agrostis microphylla Leonel Arguello 1989-7-7 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi W of Arcata, south-west quadrant of Fernstrom-Root parcel. Comment
  UC1103395  Agrostis oregonensis Joseph P. Tracy 1941-8-24 17039 Humboldt wet meadow near McKay Camp; South Fork Mountain 1676 Comment
  UC1145063  Agrostis oregonensis Joseph P. Tracy 1941-8-24 17039 Humboldt near McKay Camp (in wet meadow); South Fork Mountain 1676 Comment
  UC552752  Agrostis oregonensis Joseph P. Tracy 1934-7-18 13452 Humboldt in wet meadow North Coast Ranges, Grouse Mountain 1524 Comment
  POM207333  Agrostis pallens Davy Blasdale 1899-05 5723 Humboldt Supply Creek Comment
  SEINET3127763  Agrostis pallens J. B. Davy 1899-6-13 5521 Humboldt Near Pepperwood Comment
  CDA28152  Agrostis stolonifera H. D. Bowers Sep 1938 s.n. Humboldt Nr Beatrice. 0 Comment
  UC53501  Agrostis stolonifera Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6203 Humboldt Russ Ranch Comment
  UC552711  Agrostis thurberiana Joseph P. Tracy 1935-7-27 14281 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC138441  Aira caryophyllea H. E. Parks; S. T. Parks 1936-6-1 5850 Humboldt Spruce Cove, Trinidad. Comment
  HSC8856  Aira caryophyllea T. L. Ackerman 1964-5-15 50 Humboldt Sand dunes across from Fairhaven sign Comment
  HSC96238  Aira caryophyllea Sara March, Gillian Levy 2005-6-8 3 Humboldt 1.4 mi S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  RSA256715  Aira caryophyllea L. Hall 1975-5-24 379 Humboldt Samoa Dunes; coastal strand. Dunes off Samoa Blvd. across from the boat landing Comment
  SACT000322  Aira caryophyllea D. Shillingbury 1963-5-11 Humboldt sea level, coastal plain, coastal strand Comment
  UC1103307  Aira caryophyllea Joseph P. Tracy 1932-5-1 9864 Humboldt Redway North Coast Ranges 182 Comment
  UC34057  Aira caryophyllea J. P. Tracy 1900-6-25 860 Humboldt Immediate vicinity of Eureka 0 Comment
  UC526677  Aira praecox Joseph P. Tracy 1932-5-16 10103 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  CAS-BOT-BC462970  Allium bolanderi Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 914 Comment
  UC303139  Allium bolanderi Joseph P. Tracy 1925-6-7 7073 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon Comment
  UC1565798  Allium falcifolium R. Spellenberg 1990-7-10 10243 Humboldt 11 air mi e Burnt Ranch (11 mi s of Berry Summit (on Calif. Hwy. 299) on USFS 1) 1432 Comment
  CAS-BOT-BC469018  Allium falcifolium Doris K. Kildale 1926-6-9 2150 Humboldt Horse Mountain 1219 Comment
  HSC12536  Allium membranaceum J. Allen DeCou 1899-6-22 263 Humboldt Trail to Trinity Summit Comment
  UC2029549  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U. S. Highway 101 ca. 1.0 miles west of Orick Comment
  HSC70498  Allium validum Gail Newton 1980-7-20 1628 Humboldt Near Bell Swamps 9 Comment
  UC1193074  Alnus rhombifolia R. E. Nelson 1950-8-31 154 Humboldt 3 mi nw Neafus Peak; Quadrangle 29D1 609 Comment
  BLMAR265  Alnus rubra Jennifer Anthony-Wheeler 1999-6-16 265 Humboldt Headwaters Forest Reserve, throughout reserve esp. by rdsides 0 Comment
  HSC12947  Alnus rubra Steve Dorei 1970-10-9 27 Humboldt Arcata, near NE entrance to Wildlife building on Humboldt State University campus Comment
  HSC3435  Alnus rubra Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  RSA28320  Alnus rubra E. K. Balls, P. C. Everett 1953-10-12 18635 Humboldt 5.6 mi. n. of Little River, Hwy 101 between Arcata and Crescent City. 61 Comment
  SEINET10895894  Alnus rubra Harold E. Parks, Susan T. Parks 1938-4-1 Parks 24126 Humboldt Spruce Cove, Trinidad. 61 Comment
  UCD170775  Alnus rubra Gordon Leppig 1998-3-25 724 Humboldt McKinleyville, Central Ave. South-bound lane near 101 junction. 42 Comment
  UC1145047  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt mouth of Elk R. near Eureka 6 Comment
  UCD55973  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  UC1118432  Ambrosia chamissonis G. T. Nordstrom 1937-7-1 1445 Humboldt 1.6 mi w Orick; Orick Quad. 0 Comment
  SD39999  Ambrosia chamissonis Edith A. Purer 1932-7-27 4144 Humboldt Samoa, near Arcata on sand dunes Comment
  HSC18527  Amelanchier alnifolia var. semiintegrifolia J. Sandborg, F. Sandborg May 1968 4 Humboldt Bluff Creek near Notice Creek 793 Comment
  HSC74216  Amelanchier alnifolia var. semiintegrifolia M. A. Baker 1980-7-23 3173 Humboldt Near Orleans Mtn. 1859 Comment
  HSC99379  Amelanchier alnifolia var. semiintegrifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 28 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
  UC466773  Amelanchier utahensis P. E. Goddard 1901-7-12 77 Humboldt Hupa Comment
  HSC8845  Ammophila arenaria J. A. Waller 1965-5-18 23 Humboldt Samoa Comment
  UC199415  Amsinckia P. E. Goddard 1907-6-5 F 117 Humboldt Van Duysen Comment
  HSC3536  Amsinckia douglasiana J. Wendell Howe 1214 Humboldt Comment
Read comments
Feb 11 2018
  CAS-BOT-BC45131  Anaphalis margaritacea Alice Eastwood 1923-8-14 12304 Humboldt Samoa Comment
  OBI17091  Anaphalis margaritacea Carl B. Wolf 1937-8-13 9213 Humboldt N Coast Range, 9 mi NE of Blue Lake on Lord Ellis Rd Comment
  POM288758  Anaphalis margaritacea Lyman Benson 1929-7-12 1747 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  SEINET6734966 Image available Anaphalis margaritacea H. E. Parks, S. T. Parks 1943-1 24237 Humboldt North Coast Ranges, along highway, Stone Lagoon Comment
  HSC18008  Anemone deltoidea W. K. Parks Jul 1933 1170 Humboldt S Fork Mtn. Comment
  HSC18009  Anemone deltoidea H. E. Parks, S. T. Parks May 1930 748 Humboldt Along Van Duzen River Comment
  UC160913  Anemone deltoidea J. P. Tracy 1906-5-20 2467 Humboldt vicinity of Eureka (near Cutten and MacDonald Tract) 0 Comment
  UC582635  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  CAS-BOT-BC221416  Angelica hendersonii A. A. Heller 1924-7-23 s.n. Humboldt At Humboldt County camp on the redwood highway 7 miles south of Trinidad Comment
  HSC91940  Angelica hendersonii E. Mackey 1986-7-6 Humboldt Patrick's Point State Park, Palmer's Point trail to beach Comment
  SEINET13943410 Image available Angelica tomentosa W. A. Weber 1964-1 12204 Humboldt Mountain grade between summit of ridge separating Redwood Creek from Hoopa Valley, a few miles west of Hoopa Comment
  CAS-BOT-BC271497  Anisocarpus madioides L. R. Abrams 1918-6-15 7121 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  UC175968  Anisocarpus madioides Joseph P. Tracy 1911-6-4 3213 Humboldt 5 mi from coast (along Little River); Northern Coast Region, Little River 121 Comment
  HSC56443  Antennaria howellii Griswold, Butler 1979-7-12 7190 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC28090  Anthoxanthum occidentale J. D. Ackerman, A. M. Montalvo 1973-3-27 37 Humboldt 1.5 mi. N of Manila Comment
  HSC75434  Anthoxanthum occidentale J. O. Sawyer, M. Erickson 1979-7-15 3413 Humboldt Adroni Research Natural Area, slopes along Aikins Creek 457 Comment
  HSC79443  Anthoxanthum occidentale Kenneth Clark 1980-3-27 550 Humboldt 300 yards S of Dead Man's Gulch. 107 Comment
  CAS-BOT-BC137738  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad. Comment
  HSC8953  Anthoxanthum odoratum D. E. Anderson 1962-3-31 1957 Humboldt Coastal area of Prairie Creek State Park, back of sand dunes Comment
  HSC104450  Anthriscus caucalis Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 3 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  CDA20237  Antirrhinum vexillo-calyculatum subsp. breweri Humboldt Ag Comm 2003-11-18 PDR 1417772 Humboldt North Coast Ranges; Hwy 101 at MM 2.75 near Garberville. 0 Comment
  RSA249385  Antirrhinum vexillocalyculatum subsp. breweri Paul W. Shields 1955-9-25 s.n. Humboldt 17 mi. SE Willow Creek. Comment
  UC1197614  Apocynum androsaemifolium Joseph P. Tracy 1912-7-27 3887 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA43832  Apocynum androsaemifolium subsp. pumilum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  UC154172  Apocynum cannabinum Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5896 Humboldt near Requa Comment
  HSC102583  Aquilegia formosa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1570 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  RSA46787  Aquilegia formosa Doris Kildale Gillespie 1937-8-12 15265 Humboldt South Fork Mountain. Comment
  HSC18041  Aquilegia formosa var. formosa N. D. Dennis 1965-5-8 57 Humboldt 2.5mi N of Willow Creek Comment
  HSC45491  Aquilegia formosa var. formosa Maralyn O'Meara 1972-6-8 102 Humboldt Along Bald Hills Rd. 18 mi. E of junction with Hwy. 101 Comment
  HSC97563  Aquilegia formosa var. formosa Cara Witte 2007-6-1 165 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1355 Comment
  HSC73407  Arabis breweri var. breweri B. Potter, L. Sieburth, Susan Ahrens 1981-4-25 648 Humboldt Horse Mtn., 3.6 mi. S of Hwy. 299 on road to Titlow Ski Area 915 Comment
  HSC56440  Arabis glabra Griswold, Butler 1979-7-12 7172 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC57443  Arabis glabra G. L. Clifton, Griswold 1979-7-26 10246 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC73687  Arabis glabra M. A. Baker 1980-7-15 2980 Humboldt Near Whiting Ridge. 1341 Comment
  HSC76348  Arabis glabra Denis Kearns 1981-7-22 520 Humboldt Near Whiteys Peak 1487 Comment
  HSC75495  Arabis holboellii var. retrofracta J. O. Sawyer 1980-7-18 3637 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC58043  Arabis platysperma Gilbert Muth 1979-8-1 11891 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC79191  Arabis subpinnatifida D. K. Imper 1984-5-17 Humboldt Sims Mountain 1280 Comment
  HSC40306  Arbutus menziesii Linda M. Barker 1976-4-30 1405 Humboldt 3 mi. W of Arcata Comment
  UC213505  Arbutus menziesii Frank A. Graham 1919-12-20 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UCR178912  Arbutus menziesii R. G. Swinney 1968-4-13 243 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  RSA0065452  Arbutus menziesii Nancy Ryan Zabriskie, Walter Zabriskie 1969-8-26 233 Humboldt South Fork of the Eel River below Piercy. Comment
  CAS-BOT-BC23740  Arctostaphylos columbiana C. Hart Merriam 1921-8-21 s.n. Humboldt 2 miles north of Trinidad Comment
  CAS-BOT-BC23795  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. between Trinity River and Redwood Creek Comment
  CAS-BOT-BC23815  Arctostaphylos columbiana C. Hart Merriam 1921-7-10 s.n. Humboldt 19.5 miles south of Garberville, South fork of the Eel River. Comment
  RSA134585  Arctostaphylos columbiana P. C. Everett, E. K. Balls, George B. Everett 1959-10-26 23975 Humboldt 4 mi. se from Honeydew along Old Coast Road to Ettersburg. 457 Comment
  UC585921  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA293169  Arctostaphylos columbiana var. columbiana Thomas W. Nelson, James Nelson, A. Nelson 1976-3-11 2267 Humboldt Beside old highway 101 along north side of Table Bluff. 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
  CAS-BOT-BC24776  Arctostaphylos glandulosa subsp. glandulosa Doris K. Kildale 1927-2-20 2956 Humboldt McDowell Buttes. 914 Comment
  JEPS38975  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13332 Humboldt ridge 5 mi s Harris (on road towards Bell Springs) 762 Comment
  UC585933  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13331 Humboldt ridge 5 mi s Harris (on road towards Bell Springs); North Coast Ranges 762 Comment
  JEPS38949  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1934-3-11 13160 Humboldt French Camp Ridge 1066 Comment
  RSA632796  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27781 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA632802  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27765 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA633025  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27805 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  RSA0049659  Arctostaphylos manzanita subsp. glaucescens Dean Wm. Taylor 2011-5-4 21119 Humboldt Larabee Valley, along Highway 36 about 1 mile east of the eastern end of the valley at the bridge for the Little Van Duzen River 701 Comment
  CAS-BOT-BC24367  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-9-5 2614 Humboldt Lesseck's Peaks. 1371 Comment
  CAS-BOT-BC24370  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC40029  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge 1066 Comment
  SBBG83932  Arctostaphylos nevadensis subsp. knightii R. Gankin, W. R. Hildreth 1967-10-26 1173 Humboldt French Camp Ridge, 21.4 mi E of US 101 on Bald Hills Rd from Orick 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
  SEINET11988226  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1981-1 4325 Humboldt Tildel Regional Park Botanic Garden, Berkeley, orig. from French Camp Comment
  HSC33154  Arctostaphylos patula Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1242 Humboldt Horse Mtn. Area, SW of the microwave tower 1220 Comment
  UC600967  Arctostaphylos patula Joseph P. Tracy 1937-7-29 15600 Humboldt South Fork Mt. 1676 Comment
  CAS-BOT-BC43995  Arctostaphylos uva-ursi Bolimannsou 1907-5-15 s.n. Humboldt Samoa Comment
  CAS-BOT-BC47212  Arctostaphylos uva-ursi John Thomas Howell 1954-4-25 29157 Humboldt Little River. Comment
  UC1225930  Arctostaphylos uva-ursi Joseph P. Tracy 1945-5-10 17506 Humboldt Eureka 45 Comment
  UC154201  Arctostaphylos uva-ursi Harley P. Chandler May, 1901 1193 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC59030  Arctostaphylos viscida M. A. Baker 1979-6-7 795 Humboldt NE slope of Telescope Peak 1189 Comment
  UC1198658  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1939-4-29 16258 Humboldt 2 mi sw Orleans; Klamath River 121 Comment
  UCR45350  Arenaria macrophylla Barry Silver 1986-4-23 544 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  UC52260  Arenaria serpyllifolia H. P. Chandler 1901-1 Humboldt Klamath R. Comment
  UC1115829  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1939-4-29 16243 Humboldt at mouth of State Creek Klamath River, State Creek 121 Comment
  HSC16896  Armeria maritima subsp. californica F. B. Plett 1963-4-27 33 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC69625  Armeria maritima subsp. californica R. Kalal 1979-5-29 34 Humboldt Along Samoa Blvd. 3 Comment
  UC1199247  Arnica cernua Joseph P. Tracy 1926-6-6 7561 Humboldt road w Hoopa Valley; Northern Coast Ranges, Hoopa Valley 914 Comment
  SEINET6413745  Arnica cordifolia R. Spellenberg, S. Spellenberg 2014-5-24 14825 Humboldt USFS Road 1 S of CA Highway 299 at Berry Summit, 1.5 km N of junction with USFS Road 6N36 to translator towers. 1448 Comment
  HSC64162  Arnica discoidea J. O. Sawyer, K. A. Sawyer 1979-6-24 3406 Humboldt Slopes alongside Aikens Creek. 366 Comment
  HSC48988  Arnica discoidea M. A. Baker 1979-5-25 763 Humboldt Comment
  SEINET3098738  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie 1520 Comment
  SBBG62497  Artemisia douglasiana H. E. Parks -May-1940 24178 Humboldt Little River Comment
  UC449644  Artemisia dracunculus Joseph P. Tracy 1912-10-20 4002 Humboldt on sandy bars of Van Duzen River (Alton) 30 Comment
  BLMAR66  Artemisia pycnocephala Jennifer Anthony-Wheeler 1994-5-18 66 Humboldt Samoa dunes, growing outside wetland boundaries in Samoa Rec. area 6 Comment
  BLMAR313  Artemisia suksdorfii Jennifer Anthony-Wheeler 2002-8-9 313 Humboldt Lost Coast Headland, trail to guthrie creek 30 Comment
  CAS-BOT-BC453343  Aruncus dioicus var. vulgaris Volney Rattan 1878-6-16 s.n. Humboldt Mad River Comment
  HSC100257  Arundo donax J. P. Smith 2009-8-3 12642 Humboldt Along Hwy. 254 in Pepperwood. 51 Comment
  CAS-BOT-BC400528  Asarum caudatum Mrs. H. E. Wilder 1924-4-26 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC400532  Asarum caudatum L. R. Abrams 1922-6-25 8259 Humboldt North of the Mad River near Arcata Comment
  HSC100704  Asarum hartwegii Carl C. Marshall Apr 1887 389 Humboldt Hoopa Valley, rear of Captain's quarters. Comment
  HSC38092  Asclepias cordifolia Thomas W. Nelson, James Nelson 1976-5-30 2613 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC100387  Aspidium munitum Carl C. Marshall May 1884 33 Humboldt Bear River. Comment
  CAS-BOT-BC65940  Aspidotis densa Harley P. Chandler 1901-6-1 1380 Humboldt Hupa Indian Reservation 152 Comment
  HSC102613  Aspidotis densa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1600 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC97473  Aspidotis densa Cara Witte 2007-5-23 91 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UC419051  Aspidotis densa J. P. Tracy and H. E. Parks 1930-9-15 763 Humboldt Kneeland; Bald Hills Comment
  RSA246785  Aster chilensis R. F. Thorne, Percy C. Everett 1965-8-9 35336 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  CDA26595  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land. THP 1-00-461HUM. Comment
  HSC82034  Astragalus purshii var. lectulus Thomas W. Nelson, James Nelson 1980-6-10 5402 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  UC1222422  Astragalus rattanii var. rattanii Joseph P. Tracy 1962-7-24 19626 Humboldt Blue Slide on Van Duzen River (Van Duzen); , Blue Slide 91 Comment
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Jun 28 2015
  UC33313  Astragalus rattanii var. rattanii W. C. Blasdale 1896-6-4 Humboldt Graham's Comment
  RSA167271  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt Bald Mountain; ''Lake Prairie''. 1066 Comment
  HSC41268  Asyneuma prenanthoides Brad Klipfel 1974-7-23 462 Humboldt Horse Mtn. Comment
  HSC3825  Asyneuma prenanthoides J. Sandborg, F. Sandborg 1968-7-19 54 Humboldt Bluff Creek near Notice Creek, near road below Notice Creek Bridge. Comment
  RSA24191  Athyrium filix-femina subsp. cyclosorum C. B. Wolf 1941-3-2 9983 Humboldt Along north bank of the Van Duzen River, 4 3/10 miles above Carlotta. 46 Comment
  HSC76301  Athyrium filix-femina var. cyclosorum Teresa Prendusi 1981-7-9 176 Humboldt Near Cedar Camp. 1268 Comment
  HSC35725  Athyrium filix-femina var. cyclosorum Thomas W. Nelson 1975-1-16 1748 Humboldt E of HSU campus Comment
  JEPS35139  Athyrium filix-femina var. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt hill above Weott Comment
  JEPS35140  Athyrium filix-femina var. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt hill above Weott Comment
  UC922659  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  HSC4342  Atriplex patula D. E. Anderson 1961-9-13 1810 Humboldt Big Lagoon County Park Comment
  JEPS21316  Baccharis glutinosa W. L. Jepson 1932-7-27 16425 Humboldt Bull Creek 106 Comment
  CAS-BOT-BC99405  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka, around Humboldt Bay 30 Comment
  UC673089  Baccharis pilularis Joseph P. Tracy 1940-10-17 16771 Humboldt Camp Grant, 2-5 mi e of South Fork of Eel River Eel River 45 Comment
  CHSC19741  Baccharis pilularis subsp. consanguinea Gary J. Stebbins 1970-2-2 7 Humboldt Along U. S. 101 1.5 miles north of Patricks Point State Park. 83 Comment
  HSC68262  Baccharis pilularis subsp. consanguinea J. P. Smith 1971-10-6 4963 Humboldt End of Murray Rd. in McKinleyville. Comment
  UCD129438  Baccharis pilularis subsp. consanguinea Linda M. Barker 1976-9-3 1691 Humboldt 3 miles west of Arcata. Comment
  POM52329  Balsamorhiza hookeri var. lagocephala Geo. D. Butler 1910-4-9 1157 Humboldt Dry hill near Eureka Comment
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Dec 1 2014
  HSC99035  Barbarea orthoceras Cara Witte 2007-6-13 248 Humboldt Forest Service Road 5N01, Ammon Ridge Road. 1525 Comment
  HSC28271  Barbarea verna Thomas W. Nelson 1971-4-12 372 Humboldt Beside Hwy. 101 at the Hookton Rd. junction Comment
  HSC64813  Barbarea verna J. P. Smith, Steve Selva 1970-6-30 4125 Humboldt Comment
  HSC5191  Bellis perennis W. K. Parks Jun 1932 1187 Humboldt Trinidad Comment
  JEPS25618  Bellis perennis Rimo Bacigalupi 1959-7-7 7251 Humboldt immediately behind bluff headland of Cape Mendocino Cape Mendocino 30 Comment
  HSC34654  Bellis perennis A. M. Montalvo 1975-4-10 206 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 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
  HSC73146  Berberis aquifolium var. aquifolium M. A. Baker 1980-5-18 1354 Humboldt Near Black Mtn. 792 Comment
  HSC3348  Berberis nervosa Eugene Andreuccetti 1964-5-2 36 Humboldt 5 mi. W of Willow Creek on Hwy. 299 Comment
  HSC74649  Berberis nervosa M. A. Baker 1980-5-17 1207 Humboldt Near Le Perron Peak 792 Comment
  CAS-BOT-BC75809  Berberis pinnata L. B. Kildale 1930-7-7 10260 Humboldt Chaparral Mountain at Bug Creek. 914 Comment
  RSA246849  Berberis pinnata R. F. Thorne, P. Everett 1965-8-5 35141 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  JEPS58656  Betula occidentalis Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  HSC72946  Blechnum spicant M. Sacks 1977-4-8 4 Humboldt S end of Patrick's Point State Park 0.2 mi. W of Hwy. 101 and 5 mi. N of Trinidad 61 Comment
  JEPS97812  Blechnum spicant unknown 1922-1 Humboldt LBJ Grove along Redwood Creek path, Redwoods National Park Comment
  UCD114326  Boechera divaricarpa Joseph P. Tracy 1932-7-11 10396 Humboldt Trinity Summit. Open ground at corral prairie, Klamath Mountains. 1524 Comment
  HSC7509  Bolboschoenus maritimus subsp. paludosus Paul Shields 1955-9-15 Humboldt 4 mi. NW of Arcata. Comment
  HSC65854  Boschniakia strobilacea Gail Newton 1980-6-24 602 Humboldt Near Ladder Rock 1570 Comment
  CAS-BOT-BC121304  Botrychium multifidum Peter F. Zika 2007-7-30 23318 Humboldt SW corner of Big Lagoon 2 Comment
  UC1239782  Botrychium multifidum J. P. Tracy 1900-10-7 972 Humboldt immediate vicinity of Eureka (Rick's Prarie) 0 Comment
  CAS-BOT-BC420254  Boykinia occidentalis Ira L. Wiggins 1930-7-22 4694 Humboldt along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  CAS-BOT-BC420260  Boykinia occidentalis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC420265  Boykinia occidentalis Doris K. Kildale 1928-7-29 5928 Humboldt Bear River at Capetown 15 Comment
  CAS-BOT-BC420268  Boykinia occidentalis E. A. McGregor 1921-8-17 s.n. Humboldt on old abandoned road grade s.e. of Orick Comment
  HSC38345  Brassica nigra Peter Sorensen 1976-6-14 Humboldt North Spit Comment
  HSC6584  Brassica rapa Richard Steele 1962-2-25 2 Humboldt Arcata, 0.5 mi. W of HSU campus 15 Comment
  HSC6586  Brassica rapa C. O. Baker 1962-5-7 32 Humboldt 2 mi. S of Trinidad along Hwy. 101 15 Comment
  CAS-BOT-BC106285  Brickellia californica Hubert O. Jenkins 1943-8-1 s.n. Humboldt In dry rocky bed of Eel River, Richardson Grove Comment
  HSC32011  Briza maxima J. D. Ackerman 1974-5-26 268 Humboldt 1 mi. S of Trinidad on Scenic Dr. Comment
  SEINET3921276  Briza maxima Glenn I. Wilcox 1973-5-26 s.n. Humboldt West shore of freshwater Lagoon.; 0 Comment
  UC526898  Briza maxima Joseph P. Tracy 1930-6-15 8758 Humboldt Alder Point North Coast Ranges 152 Comment
  UC526899  Briza maxima Joseph P. Tracy 1930-7-6 8848 Humboldt Iaqua North Coast Ranges 762 Comment
  HSC36784  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2038 Humboldt At summit just W of Larabee Valley Comment
  RSA12519  Brodiaea elegans subsp. elegans Carl B. Wolf 1934-7-3 5917 Humboldt 21 miles from Orick on road to Weitchpec. 152 Comment
  JEPS7624  Brodiaea stellaris Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3406 Humboldt along state Hwy 36 5 mi e Bridgeville Comment
  JEPS512  Brodiaea stellaris Joseph P. Tracy 1928-6-24 8474 Humboldt at head Middle Yager Creek (grassy flat); East's Ranch 762 Comment
  RSA728073  Bromus Gary D. Wallace 1979-6-24 1863 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  UCD58190  Bromus carinatus A. A. Beetle; G. L. Stebbins Jr. and J. P. Tracy 1942-6-2 3477 Humboldt Head of South Yager Creek, near Yager. Comment
  CAS-BOT-BC149568  Bromus carinatus var. carinatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UC1145157  Bromus carinatus var. carinatus Joseph P. Tracy 1949-7-19 18391 Humboldt Grouse Mountain 1524 Comment
  UC1145186  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-31 5332 Humboldt Wolverton Gulch near Hydesville; Wolverton Gulch 91 Comment
  UC180492  Bromus carinatus var. carinatus Joseph P. Tracy 1913-6-22 4274 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC26356  Bromus carinatus var. marginatus T. O. Osborne 1970-8-28 63 Humboldt Green Rock, 1 5/8 mi. N, 3/4 mi. W of Trinidad Light. Comment
  UCD59205  Bromus carinatus var. marginatus A. H. Shunk 1923-7-12 24 Humboldt Briceland. Comment
  UC53638  Bromus carinatus var. maritimus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka; North Coast Ranges Comment
  HSC76567  Bromus ciliatus Teresa Prendusi 1981-7-24 486 Humboldt Near Whiteys Peak 1585 Comment
  UC188939  Bromus commutatus J. Burtt Davy 1899-6-16 5555 Humboldt North Coast Ranges, Scotia Scotia; North Coast Ranges, Scotia Comment
  UCD58456  Bromus commutatus A. H. Murphy 1951-6-13 62 Humboldt 2 miles south of Blocksburg. Tooby and Prior Ranch. Comment
  CAS-BOT-BC155993  Bromus diandrus Doris K. Kildale 1926-5-2 1902 a Humboldt Willows Creek Flat. 152 Comment
  HSC9284  Bromus diandrus R. V. Papike 1962-5-25 33 Humboldt Arcata 91 Comment
  UC1103348  Bromus diandrus Joseph P. Tracy 1942-5-23 17087 Humboldt at Eureka Eureka 30 Comment
  UCD58512  Bromus diandrus Linda M. Barker 1976-4-30 1403 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC155426  Bromus hordeaceus Doris K Niles 1950-6-1 6 Humboldt Island in Eel River, Niles Field. Comment
  HSC32487  Bromus hordeaceus Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide Comment
  HSC90690  Bromus hordeaceus Gail Newton 1982-5-31 3554 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC9306  Bromus madritensis subsp. rubens D. E. Anderson 1965-5-15 3705 Humboldt Along Hwy. 299, just N of Sugar Bowl Ranch. Comment
  CAS-BOT-BC162213  Bromus orcuttianus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  UC204532  Bromus sterilis Joseph P. Tracy 1916-5-31 4698 Humboldt Northern Coast Ranges, along Eel River from South Fork to Scotia, Holmes Flat Holmes Flat; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  CAS-BOT-BC161533  Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  HSC70926  Bromus tectorum R. York 1980-5-18 577 Humboldt Near Black Mountain 792 Comment
  HSC48989  Bromus vulgaris M. A. Baker 1979-5-25 760 Humboldt Comment
  HSC72631  Bromus vulgaris J. P. Smith 1977-7-3 9252 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  UCR93380  Buddleja davidii Kathy Harper, Dane Karr 1994-6-14 s.n. Humboldt North Coast Range, 11-12 mi. north of Willow Creek on State Hwy 96, c. 0.25 mi. north of 'vista point' along Trinity River 30 Comment
Read comments
Apr 27 2007
  UC1191446  Cakile edentula Malcolm A. Nobs, S. Galen Smith 1949-8-11 1337 Humboldt e shore of Stone Lagoon Stone Lagoon Comment
  UCR37862  Cakile edentula subsp. edentula D. Gordon 1982-9-23 s.n. Humboldt Northern Coast, Lanphere-Christensen Dunes Preserve, 3 mi west of Arcata Comment
  HSC6603  Cakile maritima J. W. Johnson 1961-8-17 1066 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata Comment
  SEINET3148036  Cakile maritima J. W. Johnson 1961-8-17 1066 Humboldt Arcata. W.M. Lanphere Farm, Samoa Peninsula Comment
  UCD56953  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1737 Humboldt North Coast Ranges, rock in Mattole River. Comment
  CAS-BOT-BC185238  Calamagrostis koelerioides Joseph P. Tracy 1933-8-30 13008 Humboldt Northern Coast Ranges. Horse Mountain. 1371 Comment
  RSA10021  Calamagrostis koelerioides Joseph P. Tracy 1933-8-30 13008 Humboldt Horse Mountain. In open Forest of Jeferey Pine 1372 Comment
  RSA53860  Calamagrostis koelerioides Henry M. Pollard 1946-8-28 s.n. Humboldt Near Summit of Orleans Mt. 1829 Comment
  HSC9412  Calamagrostis nutkaensis D. E. Anderson 1961-9-13 1808 Humboldt Big Lagoon County Park Comment
  JEPS72919  Calamagrostis nutkaensis Lincoln Constance 1934-6-25 923 Humboldt Englewood Bull Creek Region, South Fork Eel River (4 mi n of Dyerville and of n boundary of Humboldt Redwood Park, on Redwood Hwy) Comment
  HSC17634  Calandrinia ciliata P. N. Slattery 1963-3-31 35 Humboldt Clam Beach Comment
  UC1198380  Calandrinia ciliata Joseph P. Tracy 1933-5-28 12405 Humboldt Ocean View Cemetary Eureka 15 Comment
  UC161051  Calandrinia ciliata Joseph P. Tracy 1904-4-24 2023 Humboldt dunes of beach at Humboldt Bay; Northern Coast Region Comment
  UCR196002  Callitriche heterophylla subsp. bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35323 Humboldt Northwestern; Outer North Coastal region, Clam Beach County Park, along highway 3 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
  UC1714424  Callitriche heterophylla var. bolanderi J. P. Tracy 1900-5-28 824 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC80386  Calocedrus decurrens Doris K. Kildale 1926-8-31 2606 Humboldt Mattole River Valley, Geo. H. Mineis Ranch Comment
  HSC1293  Calocedrus decurrens W. R. Rogers 1965-5-7 296 Humboldt HSC campus Comment
  SBBG115082  Calochortus amabilis D. Leaberry 1991-6-13 Humboldt Hwy 254 (Avenue of the Giants), ca. 1 mi S of Phillipsville Comment
  CAS-BOT-BC488455  Calochortus amabilis Doris K. Kildale 1926-5-16 2004 Humboldt Miranda on south fork of Eel River. Comment
  CAS-BOT-BC488458  Calochortus amabilis V. Rattan 1882-6-1 s.n. Humboldt Humboldt County Comment
  HSC102081  Calochortus coeruleus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 983 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SEINET4169987  Calochortus pulchellus Unknown 1948-6-13 18050 Humboldt Harris 610 Comment
  HSC15381  Calochortus tolmiei D. E. Anderson 1965-5-8 3653 Humboldt 3.5 mi. N of Willow Creek along rd. running along E of Trinity River Comment
  HSC15406  Calochortus tolmiei J. P. Tracy, H. E. Parks 1934-6-27 7 Humboldt Grouse Mtn. 1372 Comment
  CAS-BOT-BC494367  Calochortus tolmiei H. C. Cantelow 1941-4-26 36 Humboldt 12 miles sw. of Ferndale on road to Cape Mendocino Comment
  CAS-BOT-BC496523  Calochortus tolmiei Mark Bransom; Daniel Brown; Ron Hidebrant; Nina Meiselman 1986-4-18 6 Humboldt 1 1/2 mi. west of Burnt Ranch on Rt. 299; Burnt Ranch Campground; 1584 Comment
  HSC26870  Calochortus tolmiei Clifton Raymond Chesbrough 1973-6-19 94 Humboldt 0.5 mi. N of College Cove along coast Comment
  UC198648  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  JEPS61766  Calochortus vestae Joseph P. Tracy 1916-6-19 4713 Humboldt Bosworth's Ranch Northern Coast Ranges, Laribee Creek 457 Comment
  HSC102008  Caltha leptosepala M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 909 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC74422  Caltha leptosepala Gail Newton 1980-8-10 2045 Humboldt Near Blake Mtn. 1707 Comment
  CAS-BOT-BC273317  Calycadenia fremontii Henry M. Pollard 1945-8-21 s.n. Humboldt Orleans to Somes Bar Comment
  CAS-BOT-BC275368  Calycadenia truncata var. truncata Harley P. Chandler 1901-6-1 1492 Humboldt Klamath River 426 Comment
  HSC16566  Calypso bulbosa J. F. Knezevich 1968-4-20 426 Humboldt E of Korbel on Bald Mtn. Comment
  HSC98045  Calypso bulbosa Cara Witte 2007-5-31 165 Humboldt Buck Flat. 1547 Comment
  UC1196479  Calypso bulbosa Joseph P. Tracy 1913-6-25 4342 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UCR178929  Calypso bulbosa var. occidentalis R. G. Swinney 1968-4-5 241 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  HSC97465  Calyptridium monospermum Cara Witte 2007-5-29 122 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  UC198589  Calyptridium monospermum Joseph P. Tracy 1917-9-2 4848 Humboldt Grouse Mountain at the summit Grouse Mountain; Northern Coast Ranges, Grouse Mountain 1524 Comment
  SEINET12343669  Calystegia occidentalis L. K. Henry 1971-7-6 Humboldt Along Rt 36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  HSC74028  Calystegia occidentalis subsp. occidentalis Gail Newton 1980-7-11 1315 Humboldt Near Red Mtn. 1341 Comment
  UC562485  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-7-21 12816 Humboldt Redwood House on road to South Yager; on road to South Yager, Redwood House 762 Comment
  HSC44614  Calystegia soldanella Laura Witherspoon 1977-5-25 Humboldt Manila Comment
  UCD126164  Calystegia soldanella Roman Gankin 1965-8-6 559 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  HSC31366  Calystegia soldanella Larry E. DeBuhr, G. Wallace 1972-5-23 650 Humboldt Freshwater Lagoon 2.5 mi. S of Orick on Hwy. 101 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
  HSC90189  Camissonia cheiranthifolia Jean Hanson 1980-5-24 53 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  HSC16441  Camissonia cheiranthifolia J. W. Johnson 1961-5-13 1358 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  NY679547  Camissonia cheiranthifolia subsp. cheiranthifolia A. A. Heller 1924-7-24 13881 Humboldt At Humboldt County camp, 7 miles S of Trinidad. Comment
  RSA296724  Camissonia cheiranthifolia subsp. cheiranthifolia J. P. Smith, T. W. Nelson 1977-6-30 9202 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC144061  Camissonia contorta Joseph P. Tracy 1905-6-11 2191 Humboldt Bucksport Northern Coast Region, region about Humboldt Bay 0 Comment
  LA206042  Camissoniopsis cheiranthifolia C. C. Harris; S. K. Harris 1939-8-23 sn Humboldt Samoa Comment
  JEPS31757  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Milo S. Baker 1923-8-4 183 Humboldt about 2 mi n Big Lagoon (on sand bar); Stone Lagoon Comment
  RSA120762  Campanula prenanthoides S. S. Tillett 1956-7-6 612 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 488 Comment
  SEINET10972393  Campanula prenanthoides Overton 1979-7-25 OVERTON 9836 Humboldt Near Ammon Creek, on the Willow Creek quad., close to the town of Willow Creek 671 Comment
  UC168956  Campanula prenanthoides Joseph P. Tracy 1911-7-4 3286 Humboldt near Willow Creek (hill slopes at w side of river); Northern Coast Ranges, Trinity River 243 Comment
  SEINET10905897  Campanula prenanthoides Rattan 1878-1 RATTAN s.n. Humboldt Humboldt County Comment
  HSC34270  Campanula scouleri K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  SEINET3238935 Image available Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek 150 Comment
  CAS-BOT-BC37020  Capsella bursa-pastoris Doris K. Kildale 1926-8-29 2591 Humboldt Van Duzen River, near Strongs Station. Comment
  UC161552  Cardamine breweri Joseph P. Tracy 1905-4-16 2163 Humboldt region about Humboldt Bay (at Bucksport); Northern Coast Region, , Bucksport 0 Comment
  CAS-BOT-BC37427  Cardamine californica Doris Kildale 1931-5-10 10559 Humboldt Snow Camp. Comment
  CAS-BOT-BC37430  Cardamine californica Parks; Tracy 1931-3-26 0916 Humboldt Lower Van Duzen River. 60 Comment
  SFV18478  Cardamine californica J. Wanamaker, M. Ellestad, S. Magnuson 1998-2-28 s. n. Humboldt Trinidad. 0.75 miles along Mill Creek trail. 18 Comment
  UCD114184  Cardamine californica Joseph M. DiTomaso 1976-3-28 358 Humboldt just east of summit on Highway 299, 8 miles west of Willow Creek. 762 Comment
  HSC98050  Cardamine californica var. integrifolia Cara Witte 2007-5-8 5 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  RSA0034559  Cardamine californica var. integrifolia H. E. Parks, Joseph P. Tracy 1931-3-26 916 Humboldt Lower Van Duzen River. 61 Comment
  UC1199208  Cardamine oligosperma Joseph P. Tracy 1921-4-24 5439 Humboldt Phillipsville Flat Northern Coast Ranges, South Fork Eel River (South Fork Eel River) 91 Comment
  HSC90395  Cardamine oligosperma Jean Hanson 1980-4-12 37 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  JEPS79827  Cardamine pensylvanica Joseph P. Tracy 1937-7-2 15401 Humboldt head Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  UC1409184  Cardionema ramosissimum Robert F. Thorne and P. Everett 1965-8-5 35155 Humboldt Samoa Dunes 3 Comment
  CAS-BOT-BC281808  Carduus tenuiflorus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mt 762 Comment
  UCD129920  Carduus tenuiflorus W. A. Williams 1951-6-1 s.n. Humboldt near Capetown. Comment
  CAS-BOT-BC18268  Carex David D. Keck 1946-7-4 5604 Humboldt South Fork of Eel River, 8 miles north of Garberville. Comment
  RSA34051  Carex angustata A. A. Heller 1923-7-10 s.n. Humboldt Eel River between Scotia and Pepperwood. Comment
  JEPS109583  Carex aquatilis var. dives Dean W. Taylor 2002-9-12 18343 Humboldt Lake Prairie, remnant of the original bog vegetation on the eastern end of the lake 1097 Comment
  HSC104333  Carex arcta James Regan, Humboldt Redwood Co., LLC 2007-6-22 27 Humboldt Small pond near Fox Creek 61 Comment
  JEPS79833  Carex athrostachya Joseph P. Tracy 1935-7-23 14140 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC1152075  Carex athrostachya Joseph P. Tracy 1950-7-31 19236 Humboldt edges of Muddy Lake on top of ridge of mountain Grouse Mountain, Muddy Lake 1524 Comment
  UC1265367  Carex bolanderi Robert F. Thorne and P. Everett 1965-8-5 35136 Humboldt Mt. Chamisal, below summit Comment
  CAS-BOT-BC19438  Carex bolanderi Doris K. Kildale 1927-7-23 3800 Humboldt Hoaglin Lake near Lassicks Peak [Lassics Lookout?]. Comment
  HSC70165  Carex bolanderi Thomas W. Nelson 1978-6-10 4417 Humboldt Behind the Seventh-Day Adventist Church on F St. 61 Comment
  HSC74358  Carex concinnoides Gail Newton 1980-6-17 218 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC34278  Carex concinnoides Doris K. Kildale 1928-5-1 5988 Humboldt MacLellan Mountain near Bridgeville. 914 Comment
  CAS-BOT-BC34379  Carex cusickii Joseph Prince Tracy 1938-7-6 16023 Humboldt Big Lagoon. 6 Comment
  UC1115812  Carex densa Joseph P. Tracy 1938-6-9 15876 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC34971  Carex densa Joseph Prince Tracy 1936-6-3 14848 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC34978  Carex densa Joseph Prince Tracy 1936-6-17 14953 Humboldt Northenr Coast Ranges. Buck Mountain, lower foothills of its northwestern slope. 762 Comment
  JEPS80030  Carex densa Joseph P. Tracy 1936-6-17 14953 Humboldt lower foothills of nw slope of Buck Mountain Northern Coast Ranges, Buck Mountain 762 Comment
  UC1103110  Carex deweyana subsp. leptopoda Joseph P. Tracy 1932-7-17 10677 Humboldt Trinity Summit, ridges E of Corral Prairie 1828 Comment
  CAS-BOT-BC19964  Carex exsiccata Joseph Prince Tracy 1934-7-13 13388 Humboldt Dow's Prairie. 60 Comment
  CAS-BOT-BC19963  Carex exsiccata Joseph Prince Tracy 1938-9-25 16170 Humboldt Bald Mountain; at Lake Prairie. 1066 Comment
  SEINET7558591 Image available Carex feta Andrew L. Hipp 1999-5-31 457 Humboldt Alder Point, Alder Pt Rd ca 5 mi W of Alder Pt. Comment
  HSC102202  Carex fracta M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1117 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  SEINET7559345 Image available Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt Grouse Mountain Quad, High North Coast Range, on northeast side of Titlow Hill Road, across from a small pond, on the map but un-named, 1.1 km south of Cold Spring. 1426 Comment
  UC585645  Carex fracta Joseph P. Tracy 1937-7-25 15542 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  CAS-BOT-BC21281  Carex fracta Joseph Prince Tracy 1937-7-25 15542 Humboldt Trinity Summit. Head of Hors-Linto Creek. 1371 Comment
  CHSC109942  Carex geyeri Peter F. Zika 2011-7-3 25498 Humboldt Titlow Hill Road, 4.2 road miles SE of Route 299 at Berry Summit, 0.8 air km SSW of Horse Mountain, Outer North Coast Ranges. 1390 Comment
  UC562660  Carex harfordii Joseph P. Tracy 1935-7-14 14087 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC22316  Carex harfordii Joseph Prince Tracy 1927-7-17 8279 Humboldt Three Cabins; grassy slopes on lower western foothills of Chaparral Mountain. Edge of pond. 457 Comment
  POM160302  Carex hendersonii Joseph P. Tracy 1926-6-13 7598 Humboldt Blue Lake. 152 Comment
  UC249765  Carex hendersonii Joseph P. Tracy 1923-6-20 6331 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  CAS-BOT-BC21020  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at south fork of the Eel River. Comment
  UC1103594  Carex hendersonii Joseph P. Tracy 1939-4-25 16225 Humboldt mouth of Bull Creek Bull Creek 60 Comment
  HSC103322  Carex jonesii Thomas W. Nelson, Jane Nelson 1987-6-11 8605 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  CHSC90286  Carex laeviculmis Thomas W. Nelson; Jane P. Nelson 1987-6-11 8587 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  SEINET7565140 Image available Carex leptopoda L. P. Janeway 2003-7-27 7929 Humboldt North Coast. On ridge between Stone Lagoon, Dry Lagoon and the beach (Sharp Point). Rodgers Peak 7.5' quad. 823 Comment
  UC1103589  Carex luzulina var. ablata Joseph P. Tracy 1936-6-28 15026 Humboldt bog at Lake Prairie Bald Mountain 1066 Comment
  RSA122772  Carex lyngbyei H. S. Yates 1936-6-23 s.n. Humboldt 1 mile west of Bayside; sea level 0 Comment
  JEPS79958  Carex mariposana Joseph P. Tracy 1936-6-17 14954 Humboldt lower foothills of nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  CAS-BOT-BC539862  Carex mendocinensis Alice Eastwood; John Thomas Howell 1937-6-24 4866 Humboldt 5 mi E of Berry Summit Comment
  HSC102157  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1065 Humboldt Patterson Meadows 1555 Comment
  HSC63874  Carex microptera M. A. Baker 1979-6-27 921 Humboldt Edge of Hoopa Indian Reservation Comment
  SEINET4292202 Image available Carex multicostata Unknown 2003-1 7945 Humboldt High North Coast Ranges. At upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. Grouse Mountain Quad. Comment
  HSC43480  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-9-3 3729 Humboldt Growing along creek drainage N end of pond above Alder Springs 1524 Comment
  HSC45432  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1978-7-2 4393 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  CAS-BOT-BC119538  Carex nudata Harley Pierce Chandler 1901-5-1 1235 Humboldt Unspecified. 91 Comment
  CAS-BOT-BC119548  Carex nudata A. A. Heller 1923-7-10 13797 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  CAS-BOT-BC119545  Carex nudata L. P. Janeway 1983-7-23 438 Humboldt Orleans quad. Along the E side Klamath River at N end of Dolan Bar ca 1 mi N of Orleans 91 Comment
  RSA275388  Carex nudata Thomas W. Nelson, Jane P. Nelson 1977-5-30 3407 Humboldt Growing on rocky alluvium in Mad River at Anderson s Ford north of Dinsmore on the McKeown Ranch. 610 Comment
  SEINET10850491  Carex nudata Harley P. Chandler Chandler 1235 Humboldt Redwood Belt. Comment
  UC194810  Carex nudata Joseph P. Tracy 1915-6-27 4654 Humboldt above Carlotta (Yager Creek) 91 Comment
  CHSC88893  Carex obnupta L. P. Janeway; B. Castro 2004-9-10 8319 Humboldt North Coast. South Spit of Humboldt Bay, 3.6 km north-northeast of Table Bluff Lighthouse site; between South Spit Road and the Humboldt Bay mudflats. 2 Comment
  UC562643  Carex pachystachya Joseph P. Tracy 1932-7-14 10548 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  HSC76793  Carex pachystachya L. P. Janeway 1982-6-20 17 Humboldt Along Titlow Hill Rd., 3 mi. from Hwy. 299 1220 Comment
  UC562663  Carex pachystachya Joseph P. Tracy 1927-5-29 8077 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC90761  Carex pansa Gail Newton 1982-6-5 3586 Humboldt Elk River Wildlife Area, Eureka. Comment
  CAS-BOT-BC119166  Carex pansa Joseph Prince Tracy 1935-7-18 14104 Humboldt Low sandy growth at edge of sald marsh next to Table Bluff. 3 Comment
  HSC58704  Carex rostrata Terry Griswold, Butler 1979-7-11 7097 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  SEINET7486521 Image available Carex subbracteata Peter F. Zika 2009-1 24494 Humboldt above Route 299, 2.3 road miles W of junction with Chezen Road, Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits Comment
  UC1103099  Carex subfusca Joseph P. Tracy 1938-7-7 16030 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  HSC44031  Carex subfusca Thomas W. Nelson, Jane P. Nelson 1977-9-3 3728 Humboldt Along creek draining N end of pond above Alder Springs 1137 Comment
  UC1103614  Carex vesicaria Joseph P. Tracy Jul 16 1930-Jul 19 1930 8988 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UCD96839  Carpobrotus chilensis Joseph P. Tracy 1947-9-1 17924 Humboldt Big Lagoon. 6 Comment
  CDA6950  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke s Prairie, on ridge 1 mile north above Bull Creek, ca. 2 miles west of Dyerville. 0 Comment
  HSC79475  Castilleja affinis subsp. litoralis Kenneth Clark 1980-4-18 588 Humboldt Dead Man's Gulch 12 Comment
  JEPS15614  Castilleja affinis subsp. litoralis Rimo Bacigalupi with G. Thomas Robbins and C. L. Custer 1954-8-11 4758 Humboldt 1.2 mi s Trinidad Comment
  JEPS8504  Castilleja affinis subsp. litoralis Joseph P. Tracy 1926-6-18 7606 Humboldt e of Fields Landing; Humboldt Hill 152 Comment
  HSC59457  Castilleja ambigua subsp. humboldtiensis M. A. Ericksen 1979-5-18 300 Humboldt Across from Bayside cutoff and Hwy. 101 Jct., Jct. between Arcata and Eureka Comment
  HSC90779  Castilleja ambigua subsp. humboldtiensis Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  RSA152367  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River. 3 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
  CAS-BOT-BC255523  Castilleja applegatei var. pinetorum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  SBBG7041  Castilleja exserta subsp. exserta H. and M. Dearing 1939-5-25 3433 Humboldt sand dunes near Samoa Comment
  UC1196746  Castilleja pruinosa Joseph P. Tracy 1942-6-23 17227 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  JEPS103928  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7876 Humboldt Horse Mt. Comment
  HSC20868  Castilleja rubicundula subsp. lithospermoides G. N. Bos 1965-5-2 244 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  HSC39058  Castilleja rubicundula subsp. lithospermoides Thomas W. Nelson, Jane P. Nelson 1976-5-31 2644 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC40666  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2933 Humboldt Along 5E27 at its junction with 1S07 1555 Comment
  CAS-BOT-BC49319  Ceanothus cuneatus Joseph P. Tracy 1938-6-13 15905 Humboldt Horse Mountain 1432 Comment
  UC176125  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1913-6-17 4173 Humboldt near summit of Buck Mt. North Coast Ranges 1676 Comment
  HSC101665  Ceanothus foliosus var. foliosus J. P. Smith, J. O. Sawyer 2011-4-23 13126 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  CAS-BOT-BC50047  Ceanothus incanus Doris K. Kildale 1928-5-6 6014 Humboldt Garberville, Eel River Valley - South Fork Comment
  HSC41837  Ceanothus incanus Tom Duebendorfer 1977-4-23 8 Humboldt 2.5 mi S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC502957  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Willow Creek Trinity River Valley, Northern Coast Ranges 152 Comment
  RSA95358  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC51216  Ceanothus parryi Mrs. H. C. Cantelow 1935-5-30 829 Humboldt N. of Garberville Comment
  JEPS42121  Ceanothus parryi E. Fritz Apr. 1934 Humboldt Philipsville Comment
  RSA89807  Ceanothus parryi P. A. Munz 1954-7-26 19884 Humboldt Humboldt County:S of Richardson Grove at Humboldt Mendocino County line Comment
  UC1198008  Ceanothus parryi Joseph P. Tracy 1937-7-11 15416 Humboldt Garberville 152 Comment
  UC18403  Ceanothus parryi Bolander Jun 1867 6572 Humboldt Comment
  CAS-BOT-BC52045  Ceanothus prostratus Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  BLMAR200  Ceanothus thyrsiflorus Donald Hazlett 1994-6-7 200 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC52989  Ceanothus thyrsiflorus A. A. Heller 1923-7-9 13782 Humboldt On grassy slopes along the grade south of Eureka Comment
  CAS-BOT-BC52993  Ceanothus thyrsiflorus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC52994  Ceanothus thyrsiflorus C. Hart Merriam 1920-8-29 s.n. Humboldt Lower Eel River between Dyerville and Pepperwood Comment
  HSC37610  Ceanothus thyrsiflorus R. Sutherland 1975-5-8 15 .8575 Humboldt 5 mi NW of Petrolia where county rd. reaches ocean 30 Comment
  RSA25755  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11091 Humboldt 1.5 miles N of Loleta along the redwood Hwy, 23 Comment
  OBI44963  Ceanothus thyrsiflorus var. thyrsiflorus Midred J. Cady 1938-7-14 s.n. Humboldt Near Trinidad Comment
  SBBG4552  Ceanothus thyrsiflorus var. thyrsiflorus M. J. Cody 1938-7-14 Humboldt Trinidad 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
  HSC56191  Ceanothus velutinus var. velutinus Gilbert Muth 1979-8-1 12131 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  RSA69417  Centaurium muehlenbergii F. W. Peirson 1923-7-10 3803 Humboldt Garberville. Comment
  HSC62760  Centranthus ruber J. M. DiTomaso 1979-4-2 853 Humboldt Arcata, Fickle Hill Rd. Comment
  UC1198613  Centunculus minimus J. P. Tracy 1905-5-21 2182 Humboldt immediate vicinity of Eureka 0 Comment
  UC13533  Cephalanthera austiniae Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC8230  Cerastium arvense Mrs. M. H. Manning Apr. 1899 Humboldt Hoopa Valley Comment
  UC668111  Cerastium glomeratum Joseph P. Tracy 1927-3-27 7849 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley, Willow Creek 152 Comment
  HSC39059  Cerastium glomeratum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2645 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC57698  Chaenactis douglasii var. douglasii G. L. Clifton, Griswold 1979-7-25 10927 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  SBBG60189  Chamerion angustifolium R. Hartwell 1938-8-7 Humboldt near Eureka Comment
  HSC93743  Chamerion angustifolium subsp. circumvagum Gordon Leppig 1998-9-20 1103 Humboldt Mckinleyville, Hammond Trail, 100 m N of Fischer Ave. 18 Comment
  UC314615  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1926-7-25 7755 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC54691  Cheilanthes gracillima Overton, Butler 1979-7-26 9988 Humboldt Near Willow Creek 1341 Comment
  HSC98979  Cheilanthes gracillima Cara Witte 2008-5-26 656 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  UC1299765  Cheilanthes gracillima Freed W. Hoffman 1949-7-15 3008 Humboldt e slope Mule slide (Mt Lassic Group a little s of Blue Ridge) Comment
  HSC4361  Chenopodium album D. E. Anderson 1961-9-13 1810 Humboldt Big Lagoon County Park Comment
  RSA44501  Chenopodium botrys H. M. Pollard 1947-8-31 s.n. Humboldt Klamath River near Wilson Creek, Orleans region. Comment
  RSA44459  Chenopodium multifidum H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  HSC76590  Chimaphila menziesii Denis Kearns 1981-7-24 448 Humboldt Near Whiteys Peak. 1768 Comment
  HSC54505  Chimaphila umbellata Overton, Butler 1979-7-23 9403 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC76593  Chimaphila umbellata Teresa Prendusi 1981-7-9 231 Humboldt Near Cedar Camp 1256 Comment
  UC1197594  Chimaphila umbellata Joseph P. Tracy 1911-7-7 3421 Humboldt ridge n. of Willow Creek (between Willow & Campbell Creeks, Brannan Mt, near summit); Northern Coast Ranges, Brannan Mt. 1219 Comment
  CAS-BOT-BC452226  Chimaphila umbellata Doris K. Kildale 1925-8-16 1163 Humboldt Trinity Summit Trail between forks of Tish-tang-i-tank Creek & Elk Horn Prairie 1524 Comment
  UC1225900  Chimaphila umbellata Joseph P. Tracy 1947-7-9 17856 Humboldt Horse Mt. 1432 Comment
  UC314637  Chimaphila umbellata Joseph P. Tracy 1926-8-29 7777 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  HSC98053  Chlorogalum pomeridianum var. pomeridianum Cara Witte 2007-7-17 541 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1302 Comment
  RSA167191  Chrysanthemum segetum Joseph P. Tracy 1950-6-17 18831 Humboldt At Eureka. Comment
  CAS-BOT-BC36483  Chrysolepis chrysophylla Doris K. Kildale 1926-11-28 2867 Humboldt Patricks Point. Coast Terrace Comment
  CAS-BOT-BC36484  Chrysolepis chrysophylla Doris K. Kildale 1927-2-22 2978 Humboldt Kneeland Prairie junction of old road Comment
  POM270419  Chrysolepis chrysophylla Joseph P. Tracy 1933-8-6 12933 Humboldt French Camp Ridge. 1067 Comment
  RSA1834  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old coast road at Thorn. 305 Comment
  UC484077  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 Humboldt Old Coast Road at Thorn; Thorn 304 Comment
  CAS-BOT-BC36477  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1937-7-29 15589 Humboldt Northern Coast Ranges. South Fork Mountain, west slope near top, at Hyampom Trail 1676 Comment
  UC562732  Cicendia quadrangularis Joseph P. Tracy 1935-5-25 13902 Humboldt Dobbyn Creek 152 Comment
  UC154047  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
  CAS-BOT-BC184830  Cinna latifolia Joseph P. Tracy 1935-7-25 14244 Humboldt Trinity Summit. Lower end of Brett Hole. 1584 Comment
  HSC57013  Cirsium arvense Overton, Butler 1979-7-24 57013 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  JEPS79874  Cirsium arvense Joseph P. Tracy 1933-8-13 12963 Humboldt Arcata Bottom 15 Comment
  HSC5371  Cirsium arvense H. D. Sumner 1959-7-13 Humboldt Redwood Creek near Hwy. 299 305 Comment
  UC166540  Cirsium brevistylum J. P. Tracy 1903-8-9 1935 Humboldt immediate vicinity of Eureke; Eureka 0 Comment
  CDA1176  Cirsium cymosum T. R. Haig 1960-6-16 s.n. Humboldt Kneeland, near quarry. 0 Comment
  CAS-BOT-BC279975  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  CDA1329  Cirsium occidentale var. candidissimum T. R. Haig 1960-6-21 s.n. Humboldt 7 mi. S of Garberville. Comment
  RSA43690  Cirsium occidentale var. candidissimum H. M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  UC176413  Cirsium occidentale var. venustum Joseph P. Tracy 1913-6-20 4216 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in valley in Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  UC1223062  Cirsium remotifolium Joseph P. Tracy 1941-8-12 16976 Humboldt 2 mi s of town of Field's Landing 6 Comment
  CAS-BOT-BC160967  Clarkia amoena subsp. amoena S. K. Harris 1936-6-25 s.n. Humboldt On south side of Domingo Gulch on road from Petrolia to Cape Mendocino 30 Comment
  UC144076  Clarkia davyi Joseph P. Tracy 1907-7-20 2592 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC1071989  Clarkia gracilis subsp. gracilis H. and M. Lewis 1947-6-13 420 Humboldt 2.3 mi e Bridge 4-119 (Highway 36); South Fork of Van Duzen River Comment
  UC125958  Clarkia gracilis subsp. sonomensis Mrs. M. H. Manning 1902-1 Humboldt near Hupa Comment
  UC902179  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1944-7-3 17484 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA0060033  Clarkia gracilis subsp. sonomensis Harlan Lewis, M. Lewis 1947-6-13 423 Humboldt Highway 36 at South Fork of Van Duzen River (Bridge 4-119) Comment
  BLMAR7  Clarkia gracilis subsp. tracyi Fredric Hrusa 1993-6-17 7 Humboldt Red mountain, small colony summit of rd thru serpentine.Uncommon 900 Comment
  HSC43846  Clarkia purpurea subsp. quadrivulnera Maralyn O'Meara 1974-7-17 555 Humboldt Comment
  UC902106  Claytonia perfoliata subsp. intermontana Joseph P. Tracy 1949-6-6 18306 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC183594  Claytonia perfoliata subsp. perfoliata Joseph P. Tracy 1913-5-4 4057 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC17695  Claytonia rubra subsp. depressa S. J. Hawks 1965-2-12 3 Humboldt N end of Eureka Airport Comment
  HSC17701  Claytonia rubra subsp. depressa D. B. Mitchell 1965-3-13 210 Humboldt 0.5 mi. N of US Coast Guard Station on Samoa Rd. Comment
  HSC73938  Claytonia rubra subsp. rubra Gail Newton 1980-6-28 684 Humboldt Near Mad River Butte. 1536 Comment
  SEINET200312  Claytonia rubra subsp. rubra J. P. Tracy 1913-6-16 4141 Humboldt Dinsmore's Ranch in valley of Van Duzen River opposite Buck Mt. 762 Comment
  RSA249337  Claytonia saxosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5623 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC99422  Claytonia sibirica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 71 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
  RSA271707  Claytonia sibirica Jane Turner, Francis M. Ball 1962-7-9 1133 ` Humboldt Redwood forest, beside scenic rdwood Hwy 2 miles S of jct with freeway, 40 miles N of Mendocino-Humboldt County line Comment
  SEINET215096  Claytonia sibirica C. Wray 1964-3-27 12 Humboldt On William Hunsaker property Monument Rd ca 2 mi SW of Rio Dell Comment
  HSC99242  Claytonia washingtoniana C. E. Fellows 1971-6-7 456 Humboldt 1 mi. E of Freshwater, near creek S of Freshwater Park Comment
  UC249703  Clematis ligusticifolia Joseph P. Tracy 1921-9-4 5956 Humboldt near Willow Creek (Trinity R. Valley); Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC14389  Clinopodium douglasii W. D. Stevens 1967-7-9 28 Humboldt Along the rd. to Three Creeks Summit Comment
  HSC83460  Clintonia andrewsiana R. N. Raynor 1935-5-22 Humboldt Ft. Seward Comment
  HSC104432  Clintonia andrewsiana Greg O'Connell 2013-5-21 Humboldt East of Holter Ridge, northeast of Bald Hills Rd. Comment
  RSA66979  Clintonia andrewsiana E. K. Balls 1951-5-8 16512 Humboldt 3.5 miles south of Myers, Highway 101. Comment
  SEINET3885722  Clintonia andrewsiana D. W. McNeal 1977-6-6 2047 Humboldt On a Redwood House Rd., 2.6 mi. n.e. of Hwy. #36 between Bridgeville and Charlotta.; 0 Comment
  UCR139132  Coincya monensis Jim Belsher 1997-2-13 01 Humboldt Lot ESE of the Manila Community Services District sewage pump station 6 Comment
  HSC100286  Coincya monensis subsp. recurvata J. P. Smith, J. O. Sawyer 2011-4-24 13113 Humboldt Manila; Fence row along Lupin Rd. at the Manila Community Service District Office. 4 Comment
  UC582462  Collinsia grandiflora Joseph P. Tracy 1930-6-21 8781 Humboldt Larrabee Valley; North Coast Ranges; Larrabee Valley 701 Comment
  UC1196751  Collinsia heterophylla Joseph P. Tracy 1927-5-8 7988 Humboldt vicinity of Garberville 121 Comment
  HSC89590  Collinsia heterophylla M. Roantree 1985-5-24 58 Humboldt S of Trinidad Head summit near cross Comment
  HSC100659  Collinsia parviflora Carl C. Marshall 21 Humboldt Kneeland Prairie. Comment
  UC169873  Collinsia parviflora V. Rattan Humboldt Hoopa valley Comment
  HSC60032  Collinsia rattanii M. A. Baker 1978-5-6 504 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC56220  Collomia grandiflora G. L. Clifton, Griswold 1979-8-2 12247 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1197845  Collomia heterophylla J. P. Tracy 1903-8-9 1933 Humboldt immediate vicinity Eureka 0 Comment
  HSC82602  Collomia tracyi Thomas W. Nelson 1979-7-11 4992 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  JEPS26235  Collomia tracyi Joseph P. Tracy 1939-8-5 16372 Humboldt Dinsmore's Van Duzen River (in sand bar) 737 Comment
  JEPS26241  Collomia tracyi Joseph P. Tracy 1927-6-12 8161 Humboldt Horse Mountain Northern Coast Ranges (in slide rock) 1066 Comment
  JEPS26243  Collomia tracyi Joseph P. Tracy 1940-7-7 16670 Humboldt on rocky banks Grouse Mt. 1463 Comment
  UC23379  Collomia tracyi Harley P. Chandler June 1901 1475 Humboldt Klamath River North Coast Ranges 426 Comment
  UC1222614  Conium maculatum Joseph P. Tracy 1950-6-8 18768 Humboldt near Petrolia (Hills between town and ocean) Comment
  HSC5500  Conyza canadensis Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  RSA696831  Conyza canadensis J. Russell Bruff 1937-8-17 939 Humboldt Richardson Grove, bed of Eel River. Comment
  UC709462  Coptis laciniata Joseph P. Tracy 1941-4-8 16856 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon; , Trinity Highway 762 Comment
  UC14966  Corallorhiza maculata Harley P. Chandler June, 1901 1395 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC14978  Corallorhiza maculata Mrs. M. H. Manning 1901-6-7 17 Humboldt near Hupa Comment
  BLMAR203  Corallorhiza maculata Jennifer Anthony-Wheeler 1996-7-9 203 Humboldt Pilot ridge. 1280 Comment
  HSC45237  Corallorhiza maculata Thomas W. Nelson, Jane P. Nelson 1977-6-19 3516 Humboldt Trail above Alder Springs 1585 Comment
  HSC99481  Corallorhiza maculata var. flavida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 140 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), between Six Rivers National Forest boundary and Box Camp. 1433 Comment
  POM21053  Cordylanthus pilosus subsp. pilosus L. R. Abrams 1916-7-22 6158 Humboldt Between Little and Big Van Druzen River - Eureka - Red Bluff Road. Comment
  CAS-BOT-BC101143  Corethrogyne filaginifolia Doris K. Kildale 1927-6-25 3562 Humboldt Shelter Cove Comment
  HSC41246  Cornus nuttallii Brad Klipfel 1974-5-27 393 Humboldt Near Horse Mtn. Comment
  RSA239689  Cornus nuttallii Larry E. DeBuhr 1973-4-23 982 Humboldt Richardson Grove Redwood State Park. Comment
  HSC100454  Cornus pubescens Carl C. Marshall Jun 1886 322 Humboldt Mad River. Comment
  HSC93465  Cortaderia selloana Gordon Leppig, Kai Neander 1998-10-12 1104 Humboldt McKinleyville, empty lot on School Rd., behind Mill Creek Shopping Center 30 Comment
  CAS-BOT-BC172849  Corylus cornuta subsp. californica Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick Comment
  CAS-BOT-BC180307  Corylus cornuta subsp. californica H. E. McMinn 1922-8-4 346 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC180310  Corylus cornuta subsp. californica L. B. Kildale 1928-2-19 4275 Humboldt 2 miles N of Redwood lighway Comment
  SEINET12031408  Corylus cornuta var. californica F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -282 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  SD117460  Cotoneaster franchetii Robert F. Thorne 1974-7-29 45072 Humboldt Samoa Dunes Comment
  UC249807  Cotula australis Joseph P. Tracy 1923-5-19 6211 Humboldt vicinity Trinidad 30 Comment
  HSC78086  Cotula australis L. P. Janeway, Amy Eisenberg 1984-4-24 744 Humboldt On N spit of Humboldt Bay; SE side of intersection of Samoa and Fairhaven Rds. and E of the willow patch Comment
  SEINET3817861  Cotula coronopifolia E. G. Kynoch Jr. 1966-10-7 405 Humboldt Clam Beach near Little River State Park 2 Comment
  HSC39945  Cotula coronopifolia Linda M. Barker 1976-6-1 1554 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  RSA89624  Crataegus monogyna E. K. Balls, Percy C. Everett 1953-10-13 18652 Humboldt 1 mile N of Arcata along Hwy 101. 6 Comment
  CAS-BOT-BC290585  Crepis capillaris Doris K. Kildale 1927-6-25 3540 Humboldt Shelter Cove Comment
  POM220924  Crepis capillaris D. D. Keck, J. Clausen 1935-6-16 3397 Humboldt Orick Comment
  SD148248  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North coastan strand; north spit of Samoa Peninsula, 0.5 mile north of California Highway 255 bridge over Humboldt Bay. 6 Comment
  SD51323  Crepis capillaris Darley F. Howe 1961-7-31 3098 Humboldt 37.7 miles south of Eureka on Highway 101. Comment
  CAS-BOT-BC290588  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt About 5 miles east of Arcata along the road to Blue Lake Comment
  CDA4431  Crepis capillaris T. C. Fuller 1958-6-17 597 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  UC165199  Crepis monticola Joseph P. Tracy 1908-6 2915 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  UC581730  Crepis occidentalis Joseph P. Tracy 1935-7-30 14387 Humboldt Salmon Summit; at top 2112 Comment
  HSC41266  Crepis pleurocarpa Brad Klipfel 1974-7-23 459 Humboldt Horse Mountain Comment
  HSC58139  Crepis pleurocarpa Gilbert Muth 1979-8-1 12158 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC73641  Crepis pleurocarpa M. A. Baker 1980-7-23 3136 Humboldt Near Orleans Mtn. 1859 Comment
  HSC97632  Crepis pleurocarpa Cara Witte 2007-6-5 207 Humboldt Along Forest Service Road 4N32. Near Grouse Mountain 1413 Comment
  HSC44153  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-1 3544 Humboldt Between Bear and Blanket Creeks 1524 Comment
  HSC5462  Crocidium multicaule D. H. Norris 1969-3-1 2272 Humboldt Along Trinity River at Norton Creek, ca. 4 mi. N of Hoopa Comment
  UCD138688  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt northwest corner of overpass of Hwy 101 freeway to Garberville, 1 mile south of Fields Landing. 1524 Comment
  UC1103236  Crypsis vaginiflora Joseph P. Tracy 1940-10-17 16773 Humboldt near Dyerville (river bar); Eel River, Camp Grant 48 Comment
  UC526751  Crypsis vaginiflora Joseph P. Tracy 1932-9-3 10762 Humboldt Alton to Fortuna; Northern Coast Region, Eel River 15 Comment
  HSC3567  Cryptantha affinis H. E. Parks, J. P. Tracy 1934-6-27 11059 Humboldt Grouse Mtn. 1433 Comment
  HSC57183  Cryptantha affinis Griswold, Butler 1979-7-10 6312 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC525607  Cryptantha affinis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8941 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1239660  Cryptantha leiocarpa Joseph P. Tracy 1932-5-16 10105 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  SEINET12280859  Cryptantha milobakeri J. P. Tracy 1949-1 18469 Humboldt E of headwaters of Redwood Creek, south from Grouse Mt., 2-6 miles 1280 Comment
  UC1222272  Cryptantha milobakeri Joseph P. Tracy 1949-8-11 18469 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek, electric power line southward); Kinsey Ridge 1280 Comment
  HSC74218  Cryptogramma acrostichoides M. A. Baker 1980-7-23 3147 Humboldt Near Orleans Mtn. 1859 Comment
  UCSB24335  Cuscuta californica Tracy, Joseph 1930-7-16 Humboldt South Fork Mountain; openings in fir forest near McKay Camp 1676 Comment
  UCR146428  Cuscuta californica var. breviflora R. F. Thorne, Percy C. Everett 1965-8-7 35226 Humboldt Northwestern; Outer North Coastal Ranges region, Samoa Peninsula 3 Comment
  UC154093  Cyclospermum leptophyllum Joseph P. Tracy 1900-9-10 944 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC73936  Cynoglossum grande Gail Newton 1980-6-28 675 Humboldt Near Mad River Butte. 1536 Comment
  UC582617  Cynoglossum occidentale Joseph P. Tracy 1936-8-8 15125 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  BLMAR144  Cynosurus echinatus Donald Hazlett 1994-6-7 144 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  RSA137066  Cynosurus echinatus I. L. Wiggins 1957-6-21 14142 Humboldt Margin of grassy slide area on east side of road, 1 mile south of Garberville Comment
  UC1145091  Cynosurus echinatus Joseph P. Tracy 1947-6-8 17708 Humboldt 5 mi e Carlotta (by old Strong's District School House); e of Carlotta 60 Comment
  UC1145093  Cynosurus echinatus Joseph P. Tracy 1944-7-3 17486 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  CDA38926  Cyperus eragrostis Gordon Leppig 1998-6-26 859 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. Comment
  RSA365064  Cyperus eragrostis J. P. Smith, Steve Selva 1970-6-14 3823 Humboldt Along Calif. 96 at Whitmore Creek. 152 Comment
  CAS-BOT-BC114267  Cyperus esculentus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  HSC77148  Cypripedium montanum R. York 1978-5-20 172 Humboldt Along Bluff Creek Trail 610 Comment
  UC201998  Cypripedium montanum Joseph P. Tracy 1918-5-26 4937 Humboldt Redwood Creek Northern Coast Ranges, Grouse Mt. (at foot of mountain) 609 Comment
  UC1196445  Cypripedium montanum D. F. Young 1924-4-26 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC55183  Cystopteris fragilis G. L. Clifton, Griswold 1979-8-2 12217 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CHSC10111  Cytisus scoparius T. M. Mingo 1965-5-1 Humboldt Approximately 5 miles north of Trinidad in fields near the coast. Comment
  HSC14667  Cytisus scoparius F. B. Plett 1963-4-24 32 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  HSC71613  Cytisus scoparius J. P. Smith 1973-5-26 6833 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC89606  Cytisus scoparius M. Roantree 1985-5-7 44 Humboldt E side of Trinidad Head Comment
  UC1222419  Cytisus scoparius Joseph P. Tracy 1950-6-17 18830 Humboldt Eureka Comment
  CAS-BOT-BC198198  Cytisus striatus Catherine Best 1990-6-26 1367 Humboldt At the edge of Stagecoach Road off Hwy. 101. Comment
  CAS-BOT-BC189766  Dactylis glomerata Henry M. Pollard 1948-7-28 s.n. Humboldt Roadside near Orleans. Comment
  HSC47796  Dactylis glomerata M. A. Watkins 1978-6-10 3 Humboldt East side of the 7th Street overpass of Hwy 101 Comment
  RSA730951  Dactylis glomerata Gary D. Wallace 1979-6-22 1851 Humboldt Eureka. Parking lot, 6 Rivers National Forest headquarters. Comment
  SEINET3926894  Dactylis glomerata Thomas Nelson, Jane P. Nelson 1976-7-26 3022 Humboldt Trinity-Humboldt Co. line. growing on road cut of 1S07 on serpentine west of Black Lassic.; 0 1615 Comment
  CAS-BOT-BC189735  Danthonia californica Alice Eastwood; John Thomas Howell 1937-6-22 4734 Humboldt Near Alder Point. Comment
  CAS-BOT-BC189740  Danthonia californica Joseph P. Tracy 1928-6-24 8463 Humboldt Northern Coast Ranges. Valley of South Yager Creek. 762 Comment
  CAS-BOT-BC189745  Danthonia californica Joseph P. Tracy 1935-6-23 13965 Humboldt French Camp Ridge. 1066 Comment
  UC1103255  Danthonia californica Joseph P. Tracy 1926-7-5 7727 Humboldt Valley of South Yager Creek Comment
  UC526686  Danthonia californica var. americana Joseph P. Tracy 1931-5-31 9548 Humboldt Kneeland Prairie Northern Coast Ranges 792 Comment
  CAS-BOT-BC420362  Darmera peltata Joseph P. Tracy 1933-6-7 12517 Humboldt Blue Slide, on Van Duzen River 91 Comment
  RSA421918  Datura stramonium M. B. Dunkle 1936-8-22 4855 Humboldt Williams Grove, Eel River. 213 Comment
  UC154249  Daucus pusillus J. P. Tracy 1909-7-18 3021 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  RSA296790  Daucus pusillus J. P. Smith, T. Nelson 1977-6-30 s.n. Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC1197348  Daucus pusillus J. P. Tracy 1905-6-11 2192 Humboldt Bucksport 0 Comment
  UC642294  Daucus pusillus Joseph P. Tracy 1936-6-8 14870 Humboldt bluffs facing ocean Trinidad 3 Comment
  HSC36240  Delphinium decorum subsp. tracyi John Rehling 1975-5-12 71 Humboldt Bald Hills Area, 2 mi. up Williams Ridge Rd. Comment
  RSA296867  Delphinium decorum subsp. tracyi Joseph P. Tracy 1918-5-28 4941 Humboldt High Prairie on Bald Mtn. Comment
  UC668271  Delphinium glaucum Joseph P. Tracy 1935-7-25 14241 Humboldt lower end Brett Hole (along streams); Trinity Summit 1584 Comment
  SD46536  Delphinium hesperium E. K. Balls, L. W. Lenz 1956-6-12 21665 Humboldt 9.1 miles ne from Blue Lake along U.S. Hwy. 299, Arcata to Willow Creek. 487 Comment
  CAS-BOT-BC10311  Delphinium hesperium Harley Pierce Chandler 1901-6-1 1410 Humboldt Kalmath River 304 Comment
  JEPS23323  Delphinium hesperium subsp. hesperium Milo S. Baker 1923-7-29 147 Humboldt Lawrence Creek, east of Carlotta and Fortuna Comment
  UC1222578  Delphinium nudicaule Joseph P. Tracy 1950-6-15 18815 Humboldt ne side of ridge Mail Ridge, Huestis Rock (7 mi ne of Harris) Comment
  RSA20944  Delphinium trolliifolium Carl B. Wolf 1937-6-19 8916 Humboldt N Coast Range, 3 miles NE of Little Van Duzen River on road to Dinsmores. 762 Comment
  SEINET12099649  Delphinium trolliifolium J. P. Tracy 1951-1 s.n. Humboldt half way between Snow Camp and Twin Lakes Comment
  HSC93740  Deschampsia cespitosa subsp. holciformis Gordon Leppig 1998-7-19 983 Humboldt Big Lagoon County Park, Big Lagoon Bog 2 Comment
  HSC98123  Deschampsia elongata Cara Witte 2007-6-19 292 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  UCD63596  Deschampsia elongata Elizabeth Wilson 1936-6-18 Humboldt From Garberville north into Holbrook Grove. Comment
  SEINET3927555  Deschampsia elongata J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Hoopa quad. Envorons of Mud Spring. Big Hill Road (F. S. 8N01).; 0 1524 Comment
  HSC8351  Dicentra formosa H. E. Parks, S. T. Parks May 1930 758 Humboldt Along the Van Duzen River Comment
  UC1362290  Dicentra formosa Kingsley R. Stern 1964-6-13 2106 Humboldt 2.3 mi w U.S. Highway 101 (on e bank of Redwood Creek); Redwood Creek Comment
  UC1103020  Dicentra pauciflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 9019 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Range, South Fork Mountain 1676 Comment
  UC1198186  Dichelostemma X venustum Joseph P. Tracy 1928-6-24 8468 Humboldt Valley of South Yager Creek 762 Comment
  HSC45650  Dichelostemma capitatum subsp. capitatum Diane L. Reed 1978-4-22 15 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC1950087  Dichelostemma capitatum subsp. capitatum Barbara Ertter with Thomas J. Delendick 1987-5-16 6927 Humboldt near seepage on N side of road; S-facing slope; Vista Point just W of Berry Summit on Hwy 299, ca 15 airmiles E of Arcata Comment
  HSC35967  Dichelostemma multiflorum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1951 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  JEPS15182  Digitalis purpurea G. T. Nordstrom Jul 1937 1442 Humboldt 1.6 mi wsw Orick; Orick Quad. 45 Comment
  UC535744  Digitalis purpurea Eleanor Armstrong 1174 Humboldt Richardson Grove Comment
  CAS-BOT-BC150343  Diplacus aurantiacus Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  SEINET5741149 Image available Dipsacus fullonum Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6110 Humboldt In a waste area along Giuntoli Lane in Arcata. Adjacent to Eureka Sand and Gravel Company and across the road from T. P. Tire Service (1265 Giuntoli Lane).; Arcata Comment
  RSA520552  Disporum hookeri var. hookeri Michael A. Hanson 1990-5-22 83 Humboldt Between Weitchpec and Orleans on Bluff Creek Road, 4.6 miles (7.4) west of highway 96. Comment
  RSA68743  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Bull Creek, at South Fork of the Eel River Comment
  CHSC56629  Distichlis spicata L. P. Janeway 1983-9-24 703 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground. 3 Comment
  UC526904  Distichlis spicata Joseph P. Tracy 1933-8-22 12989 Humboldt Mouth of Eel River 3 Comment
  JEPS14669  Dodecatheon alpinum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8930 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (South Fork Mountain) 1676 Comment
  UC1222564  Dodecatheon hendersonii Joseph P. Tracy 1950-5-7 18645 Humboldt on the road to South Yager Valley about 5 mi n Bridgeville; n of Bridgeville 198 Comment
  UC602553  Downingia elegans Joseph P. Tracy 1930-6-15 8739 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UCD55079  Downingia willamettensis Rachel Foster 1970-1 F70- 96 -11 Humboldt Hydesville. Adjacent to Hydesville School. Comment
  UC249685  Draba verna Joseph P. Tracy 1922-4-2 5986 Humboldt near Carlotta (Van Duzen River); Northern Coast Ranges, Van Duzen River bar 30 Comment
  HSC44732  Drosera rotundifolia Maralyn O'Meara 1971-10-25 55 Humboldt S side of Big Lagoon Comment
  HSC40707  Drosera rotundifolia J. P. Smith, T. Nelson, Robert M. Specht 1977-4-10 9015 Humboldt SE of Hwy. 101 at the SW end of the bridge over Big Lagoon. Comment
  JEPS47226  Drymocallis glandulosa var. glandulosa Lincoln Constance 1934-6-15 878 Humboldt summit of Grasshopper Peak South Fork Eel River, Bull Creek Region (Bull Creek Region) 975 Comment
  UC492180  Drymocallis rhomboidea Joseph P. Tracy 1927-5-14 8002 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC61724  Dryopteris arguta Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan. 137 Comment
  CAS-BOT-BC71053  Dryopteris expansa John Thomas Howell; Gordon H. True; Lewis S. Rose 1972-6-5 48820 Humboldt Patrick Point State Park Comment
  CAS-BOT-BC71054  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 s.n. Humboldt Crokscrew Tree, 8 miles north of Orick Comment
  POM188328  Dryopteris expansa Marcus E. Jones 1931-8-2 29171 Humboldt Klamath Comment
  JEPS19987  Dulichium arundinaceum Joseph P. Tracy 1938-9-25 16173 Humboldt Bald Mountain at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  UC34075  Echinochloa crus-galli J. P. Tracy 1900-11-1 973 Humboldt immediate vicinity Eureka 0 Comment
  UC666920  Eleocharis bella Joseph P. Tracy 1935-7-17 14108 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC7309  Eleocharis macrostachya Paul Shields 1955-10-7 Humboldt Essex Pond near Fieldbrook Comment
  UC666873  Eleocharis macrostachya Joseph P. Tracy 1934-8-14 13570 Humboldt Alton 30 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
  HSC39716  Elymus X vancouverensis D. E. Anderson, J. P. Smith 1971-6-28 - 1262 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  SBBG53088  Elymus glaucus R. N. Philbrick, J. R. Haller 1976-6-25 8 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  UC1103206  Elymus glaucus J. P. Tracy 1902-7-4 1761 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC203471  Elymus glaucus subsp. glaucus Joseph P. Tracy 1935-7-21 14119 Humboldt Mouth of Bremer Creek. Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC203474  Elymus glaucus subsp. glaucus Harold E. Parks; Joseph P. Tracy 1934-6-14 11026 Humboldt Horse Mt. 1371 Comment
  SEINET249776  Elymus glaucus subsp. glaucus J. P. Tracy 1936-6-9 14889 Humboldt Bear River Lodge Comment
  HSC99017  Elymus lanceolatus subsp. lanceolatus Cara Witte 2008-7-14 893 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. At end of the road. 1407 Comment
  HSC103977  Elymus mollis subsp. mollis C. Reynolds 2015-4-12 34 Humboldt Along Freshwater Beach, close to wave slope, south of the Kuchel Visitor Center 3 Comment
  UC38212  Elymus multisetus Joseph Burtt Davy 1899-6-19 5661 Humboldt Hoopa Mt. Comment
  UC184152  Elytrigia repens Joseph P. Tracy 1912-7-7 3743 Humboldt Eureka Northern Coast Region (edge of salt marsh) 0 Comment
  UC144087  Epilobium brachycarpum Joseph P. Tracy 1900-9-9 946 Humboldt gravel bar on creek Northern Coast Region, Yager Creek (near Hydesville) 60 Comment
  HSC16549  Epilobium canum subsp. latifolium Paul Shields 1955-9-25 Humboldt 17 mi. SE of Willow Creek Comment
  HSC53857  Epilobium ciliatum Griswold, Butler 1979-7-10 6328 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  JEPS43830  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1936-8-8 17862 Humboldt Richardson Grove South Fork Eel River Comment
  HSC79497  Epilobium ciliatum subsp. ciliatum Kenneth Clark 1979-6-30 453 Humboldt Dead Man's Gulch 8 Comment
  UC161071  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1911-7-5 3323 Humboldt along creek near mouth (creek is tributary of Trinity River); Northern Coast Ranges, Willow Creek 304 Comment
  UC902178  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1949-8-7 18444 Humboldt Box Camp Trinity Summit (meadow) 1463 Comment
  HSC16367  Epilobium ciliatum subsp. watsonii J. P. Tracy 1926-7-25 7756 Humboldt Big Lagoon Comment
  UC1222845  Epilobium foliosum Joseph P. Tracy 1950-6-15 18808 Humboldt n Harris; Mail Ridge Comment
  HSC32548  Epilobium hallianum Thomas W. Nelson 1973-7-10 1031 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  POM214931  Epilobium hallianum Joseph P. Tracy 1927-7-17 8274 Humboldt Northern Coast Ranges: Three Cabins; Chaparral Mountain 457 Comment
  UC198612  Epilobium torreyi Joseph P. Tracy 1916-6-19 4728 Humboldt forks of Dobbyn Creek; Northern Coast Ranges 182 Comment
  SEINET10296819  Epipactis gigantea Unknown 1949-7-7 18335 Humboldt CALIFORNIA PLANTS -- HUMBOLDT COUNTY BLUE SLIDE, on VAN DUZEN RIVER Comment
  UC195429  Epipactis gigantea Joseph P. Tracy 1915-6-27 4655 Humboldt about 2 mi above Carlotta; Northern Coast Ranges, Yager Creek 91 Comment
  CAS-BOT-BC57162  Equisetum hyemale subsp. affine Joseph P. Tracy 1928-6-17 8456 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA53855  Equisetum hyemale var. affine Henry M. Pollard 1946-8-31 s.n. Humboldt New Wilson Creek, Orleans Mt. Comment
  UC906713  Equisetum laevigatum Harold E. Parks and Joseph P. Tracy 1942-5-16 11563 Humboldt vicinity of Garberville 152 Comment
  UC1239792  Equisetum laevigatum H. E. Parks and Joseph P. Tracy 1932-5-11 9966 Humboldt along R.R. Samoa; Northern Coast Ranges 6 Comment
  SEINET181172 Image available Equisetum telmateia Bassett Maguire, R Maguire; C. B. Maguire 1934-6-8 15055 Humboldt Bolling Grove State Park ; Bolling Grove State Park Comment
  CAS-BOT-BC57791  Equisetum telmateia Joseph P. Tracy 1934-6-28 13268 Humboldt By Salmon Creek. 9 Comment
  UC526937  Equisetum telmateia subsp. braunii Joseph P. Tracy 1934-3-17 13163 Humboldt Trinidad 3 Comment
  HSC886  Equisetum telmateia subsp. braunii Francis Winter 1960-4-19 Humboldt Samoa Pennisula 6 mi. W of Arcata. Comment
  RSA44367  Eragrostis mexicana subsp. virescens Henry M. Pollard 1947-8-7 1949 Humboldt Klamath River sandbar near Orleans Comment
  CAS-BOT-BC278518  Eragrostis pilosa var. pilosa Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, Klamath River, Orleans region Comment
  POM272117  Erechtites minimus Lyman Benson 1928-7-12 250 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC57889  Eremogone congesta var. suffrutescens Overton, Butler 1979-7-31 11446 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC131507  Ericameria arborescens H. E. McMinn 1922-8-3 476 Humboldt Mt. slope - above S.F., Eel River Comment
  HSC26467  Erigeron glaucus T. O. Osborne 1970-5-22 28 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  HSC31641  Erigeron glaucus Glenn McGourty 1974-6-1 81 Humboldt Comment
  HSC58125  Erigeron klamathensis Gilbert Muth 1979-8-1 12111 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1878 Comment
  HSC5528  Erigeron philadelphicus Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  CAS-BOT-BC214576  Erigeron philadelphicus Kenneth Clark 1980-6-14 697 Humboldt Shelter Cove. North fork Dead Man's Gulch 121 Comment
  JEPS41364  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1912-6-9 3651 Humboldt Alton Northern Coast Region, Alton 30 Comment
  JEPS41378  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1934-5-7 16688 Humboldt Bull Creek Comment
  UC31516  Erigeron philadelphicus var. philadelphicus Hy Melde 1896-2-21 Humboldt Eureka Comment
  UC1223010  Erigeron robustior Joseph P. Tracy 1942-7-4 17370 Humboldt lower foothills of its nw slope Buck Mountain 762 Comment
  UC468821  Erigeron robustior Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5429 Humboldt near Hubbards Comment
  SEINET11851213  Erigeron strigosus J. P. Tracy 1950-1 19046 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  HSC54867  Eriogonum compositum G. L. Clifton, Griswold 1979-7-25 10779 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC76606  Eriogonum compositum Teresa Prendusi 1981-7-21 280 Humboldt Near Whiteys Peak 1646 Comment
  CDA18207  Eriogonum latifolium G. D. Barbe, T. C. Fuller 1974-6-17 1833 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sea Court, Shelter Cove. 60 Comment
  SD38694  Eriogonum latifolium Edith A. Purer 1932-7-27 4149 Humboldt Near Samoa, near Arcata Comment
  SD38696  Eriogonum latifolium Charlotte M. Hoak 1931-7-14 2102 Humboldt Sand dunes above Eureka Comment
  UC162627  Eriogonum luteolum var. luteolum Joseph P. Tracy 1911-7-8 3451 Humboldt along Willow Creek near its mouth Willow Creek (tributary of Trinity River) 152 Comment
  UC6566  Eriogonum luteolum var. luteolum C. C. Marshall 1888-1 Humboldt Comment
  HSC74306  Eriogonum nudum M. A. Baker 1980-7-24 3204 Humboldt Near Orleans Mtn. 1625 Comment
  SEINET6944764  Eriogonum nudum Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  CAS-BOT-BC261492  Eriogonum nudum var. nudum M. S. Jussel 1931-5-2 116 Humboldt Garberville Comment
  HSC32167  Eriogonum nudum var. nudum J. O. Sawyer 1970-6-24 2243 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC198588  Eriogonum nudum var. nudum Joseph P. Tracy 1916-6-20 4729 Humboldt Dobbyn Creek 182 Comment
  RSA18610  Eriogonum nudum var. nudum Carl B. Wolf 1937-9-8 9300 Humboldt North Coast Range, Bull Creek- Petrolia Road, 11 miles west of redwood highway. 305 Comment
  UC1222337  Eriogonum nudum var. nudum Joseph P. Tracy 1950-8-20 19320 Humboldt just above Slate Creek (along Klamath River at Big Bar); Klamath River, Big Bar 121 Comment
  CAS-BOT-BC267970  Eriogonum umbellatum var. argus Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1676 Comment
  HSC43084  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-8-3 300 Humboldt N Trinity Mtn. 1860 Comment
  UC1198157  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1932-7-12 10459 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  HSC70697  Eriogonum umbellatum var. stellatum Gail Newton 1980-7-15 1556 Humboldt Near Sims Mtn. 1311 Comment
  HSC5605  Eriophyllum lanatum var. achilleoides Lincoln Constance, R. C. Rollins 1942-5-12 2886 Humboldt Mouth of Bluff Creek, 6 miles NE of Weitchpec 152 Comment
  UC1199140  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1933-7-25 12875 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC673208  Eriophyllum lanatum var. achilleoides Lincoln Constance and Reed C. Rollins 1942-5-12 2886 Humboldt 6 mi ne Weitchpec; Klamath-Siskiyou Region, Mouth of Bluff Creek 152 Comment
  CAS-BOT-BC301013  Eriophyllum lanatum var. achilleoides W. R. Dudley 1899-6-21 s.n. Humboldt Eel River Road on rocks above Pepperwood Comment
  CAS-BOT-BC301020  Eriophyllum lanatum var. achilleoides L. Constance 1933-5-21 E 34 Humboldt Cliffs along the South Fork of the Eel River, 1 mile north of Garberville Comment
  UC176464  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1913-7-25 4338 Humboldt Dinsmore Ranch opposite Buck Mountain; Northern Coast Ranges, Van Dusen River Valley 762 Comment
  UC1199139  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 1/2 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  BLMAR818  Eriophyllum staechadifolium Madeleine Hassett 2017-9-9 818 Humboldt King Range, Windy point, down the old road/trail to Punta gorda Lighthouse 5 Comment
  HSC90471  Erodium cicutarium Jean Hanson 1980-4-12 34 Humboldt Eureka, Indian Island in Humboldt Bay. W end of island. Comment
  HSC102063  Erysimum capitatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 965 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC73747  Erysimum capitatum var. capitatum M. A. Baker 1980-7-15 2949 Humboldt Near Whiting Ridge. 1341 Comment
  HSC6784  Erysimum menziesii R. van Weemen Van Noord 1966-3-24 2 Humboldt N end of Samoa drag strip. 6 Comment
  HSC97239  Erysimum menziesii Thomas W. Nelson, James Nelson 2004-4-8 9181 Humboldt W and S of the mouth of Elk River. 1 Comment
  HSC58338  Erysimum perenne Walter Overton, Marvin Butler 1979-8-2 12648 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  SEINET200701 Image available Erythranthe cardinalis Joseph P. Tracy 1911-1 3480 Humboldt Tributary of Trinity River; along Willow Creek; near its mouth. 244 Comment
  SD88386  Erythranthe moschata Darley F. Howe 1972-6-30 Humboldt Trinidad Comment
  SEINET13732744 Image available Erythranthe primuloides Joseph P. Tracy 1932-1 10534 Humboldt Trinity Summit, Corral Prarie. 1585 Comment
  JEPS505  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  HSC98625  Erythronium californicum Cara Witte 2007-5-26 659 Humboldt National Forest 1. 1/2 mile south of intersection with Forest Service Roads 6N38 and 6N36. 1458 Comment
  SEINET3991605  Erythronium californicum Unknown 1938-6-13 15896 Humboldt Horse Mountain , in open forest of Jeffrey Pine , on red soil in serpentine belt. 1433 Comment
  JEPS500  Erythronium revolutum Joseph P. Tracy 1927-5-15 8064 Humboldt near summit on road from Hoopa w to Bair's (at head of Pine Creek); Hoopa Mountain, Pine Creek 1066 Comment
  JEPS61876  Erythronium revolutum Joseph P. Tracy 1918-5-1 4896 Humboldt Ashfield Butte Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC16748  Eschscholzia californica R. T. Forester 1963-4-23 20 Humboldt 1 mi. N of Fairhaven on Samoa Rd. Comment
  HSC16769  Eschscholzia californica T. W. Beck 1963-4-27 38 Humboldt Humboldt Meridian, Camp Bauer, Korbel Comment
  UC1196290  Eschscholzia californica Joseph P. Tracy 1912-7-4 3734 Humboldt near Hydesville; Northern Coast Region 60 Comment
  POM160277  Eschscholzia californica var. crocea Joseph P. Tracy 1926-5-15 7485 Humboldt Kneeland Prairie, North Coast Ranges 762 Comment
  OBI69925  Eucalyptus globulus Jenn Yost, Matt Ritter 2008-4-1 41 Humboldt Sewell R. off 101, Weott Comment
  JEPS20487  Euchiton gymnocephalus Joseph P. Tracy 1936-3-22 14784 Humboldt 4 mi se Korbel (near Angels Ranch); North Coast Ranges 304 Comment
  UC562614  Euchiton gymnocephalus Joseph P. Tracy 1936-5-29 14829 Humboldt 2 mi ne Orick (on Bald Hills road) 152 Comment
  UC1199346  Euchiton gymnocephalus Joseph P. Tracy 1927-8-28 8358 Humboldt near Boynton Prairie 609 Comment
  UC1199351  Euchiton sphaericus Joseph P. Tracy 1920-9-19 5399 Humboldt North Fork of Mad River Northern Coast Ranges, North Fork of Mad River 304 Comment
  CAS-BOT-BC310488  Euchiton sphaericus Joseph P. Tracy 1915-9-12 4677 Humboldt Northern Coast Ranges. Mouth of Laribee Creek 60 Comment
  POM358934  Euchiton sphaericus H. M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  CAS-BOT-BC206913  Euonymus occidentalis C. Hart Merriam 1922-7-5 s.n. Humboldt Carson Woods, Fortuna Comment
  UC275491  Euonymus occidentalis var. occidentalis H. E. Parks and Joseph P. Tracy 1925-6-14 7123 Humboldt along streams on Kneeland Prairie rd. Northern Coast Ranges, Kneeland Prairie rd. 457 Comment
  CDA4817  Euphorbia helioscopia W. Simas 1962-12-4 Humboldt Fisher property, Island School Road, Ferndale. 0 Comment
  HSC37664  Eurybia radulina R. Sutherland 1976-8-18 15 .18876 Humboldt Disturbed edge of country road 207 Comment
  UC774610  Eurybia radulina Carl B. Wolf 1937-9-8 9301 Humboldt 11 mi w of, Bull Creek -Petrolia Road Redwood Highway; North Coast Range 304 Comment
  OBI10874  Fallopia sachalinensis T. C. Fuller 1968-7-30 17447 Humboldt NE side of Hwy 101 fwy overpass, Fields landing Comment
  CAS-BOT-BC278180  Festuca W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  UC34070  Festuca californica J. P. Tracy 1901-6-23 1175 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC282500  Festuca elmeri Doris K. Kildale 1928-6-24 5286 Humboldt Horse Mountain 914 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
  HSC45025  Festuca occidentalis R. Sutherland 1978-4-24 7 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  UC70923  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5362 Humboldt near Harris Comment
  BLMAR30  Festuca perennis Brad Barr June, 1982 30 Humboldt King range, Smith cabin Comment
  POM126115  Festuca rubra Joseph P. Tracy 1900-7-4 894 Humboldt Ocean Beach at Humboldt Bay. Comment
  UC187116  Festuca rubra Joseph P. Tracy 1900-7-4 894 Humboldt Humboldt Bay Comment
  UCD66355  Festuca rubra H. S. Yates 1936-6-16 5672 Humboldt 1 mile N.E. of Samoa. 3 Comment
  UC187119  Festuca subuliflora J. P. Tracy 1900-5-22 801 Humboldt immediate vicinity Eureka 0 Comment
  SEINET10963562  Festuca subuliflora Huron H. Smith 1911-1 Smith 3915 Humboldt Comment
  HSC45585  Fragaria chiloensis Diane L. Reed 1978-4-29 41 Humboldt Trinidad Head Comment
  HSC95822  Fragaria chiloensis Steven Lee 2004-3-23 5 Humboldt Manila Dunes, Vera Ln. Dune Community Comment
  HSC18621  Fragaria chiloensis S. J. Hawks 1965-2-12 2 Humboldt N end of Eureka Airport Comment
  UC1198725  Fragaria chiloensis Joseph P. Tracy 1918-4-21 4875 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  HSC23707  Fragaria vesca J. O. Sawyer 1970-6-27 2309 Humboldt Site 318. 1494 Comment
  CAS-BOT-BC457929  Fragaria vesca subsp. californica Alice Eastwood; John Thomas Howell 1937-6-22 4718 Humboldt Near Harris Comment
  HSC102047  Fragaria virginiana M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 950 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC18394  Frangula californica P. W. Shields May 1955 Humboldt 2 mi N of Willow Creek Comment
  CAS-BOT-BC52740  Frangula californica subsp. californica Doris K. Kildale 1927-5-15 3294 Humboldt Petrolia - Mattole River Valley Comment
  HSC18411  Frangula purshiana L. D. Napier 1962-5-19 15 Humboldt 1 mi. E of Arcata on Fickle Hill 168 Comment
  UCD112819  Frangula purshiana Linda M. Barker 1976-7-5 1648 Humboldt Lanphere-Christensen Dunes 3 miles west of Arcata. Comment
  RSA46910  Fraxinus latifolia Doris K. Kildale 1926-7-5 2325 Humboldt Smith River near Adam s Station Comment
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Jan 24 2013
  UC479201  Fraxinus latifolia Marcus E. Jones, A. M. 1931-7-16 28864 Humboldt e of Arcata (Junction) Comment
  UC15016  Fritillaria affinis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC15546  Fritillaria affinis F. B. Plett 1963-5-15 49 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  RSA304286  Fritillaria affinis James R. Shevock 1972-3-27 1479 Humboldt Bear River Valley near Cape Mendocino 152 Comment
  RSA79369  Fritillaria affinis E. K. Balls, Lee W. Lenz 1952-5-12 17194 Humboldt 3.9 miles east of Bridgeville along Highway 36 Comment
  SEINET12050370  Fritillaria affinis F. H. Utech 1988-1 88 -285 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, Mile Marker 42.00, bluff above Van Duzen River 800 Comment
  RSA275379  Galium Thomas W. Nelson, J. Nelson 1976-5-10 2466 Humboldt Besides S.R. 191 just N of its jct with S.R. 70. Comment
  HSC70928  Galium aparine R. York 1980-5-18 579 Humboldt Near Black Mtn 792 Comment
  JEPS25701  Galium bolanderi P. C. Hutchison 1961-5-22 2031 Humboldt high bluffs along road ca. 5.4 mi n Orleans (on US hwy 299, e side of river); Klamath River Comment
  HSC100642  Galium californicum Carl C. Marshall Jul 1887 400 Humboldt Spruce Grove. Comment
  JEPS52873  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3861 Humboldt 2.3 mi s Weott; Avenue of the Giants 60 Comment
  JEPS52840  Galium muricatum Lauramay T. Dempster 1963-9-3 3919 Humboldt s Orleans (steep w-facing slope of side canyon); Slate Creek Bridge 94 Comment
  RSA245002  Galium nuttallii William J. Ferlatte, B. D. Rogers 1966-6-15 2092 Humboldt Near Bridgeville. Comment
  JEPS6497  Galium parisiense Joseph P. Tracy 1916-6-19 4710 Humboldt Bosworth's Northern Coast Ranges, Laribee Creek (on creek) 457 Comment
  UC416654  Galium parisiense Harley P. Chandler June, 1901 1305 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation 152 Comment
  UCR45370  Galium porrigens var. porrigens Kenneth Clark 1980-6-14 679 Humboldt Shelter Cove. Top of north fork Dead Man's Gulch 198 Comment
  UC196081  Galium trifidum Joseph P. Tracy 1927-7-10 8246 Humboldt Alton Northern Coast Region 30 Comment
  HSC57191  Galium triflorum Griswold, Butler 1979-7-11 6908 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC98710  Galium triflorum Cara Witte 2007-7-20 562 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  HSC37947  Gamochaeta ustulata Peter Sorensen 1976-6-16 Humboldt Humboldt Bay; Woodley Island Comment
  UC127829  Gamochaeta ustulata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5465 Humboldt near Elk Prairie; North Western California Comment
  UC166543  Gamochaeta ustulata Joseph P. Tracy 1911-7-9 3462 Humboldt near mouth of Willow Creek; North Coast Ranges, Valley of Trinity River, Willow Creek 152 Comment
  HSC39953  Garrya elliptica Linda M. Barker 1976-1-24 1309 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC182169  Garrya fremontii Henry M. Pollard 1946-9-1 s.n. Humboldt Near Willow Creek, Orleans region Comment
  HSC8404  Garrya fremontii C. B. Wolf 1927-8-28 1169 Humboldt Lord Ellis Rd. to Blue Lake, 9 mi. from Willow Creek, 2 mi. below grade summit Comment
  POM212193  Garrya fremontii Carl B. Wolf 1930-10-24 1762 Humboldt Along the Klamath River one mile above mouth of Slate Creek. 244 Comment
  UCSB72514  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
  UCSB72519  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
  RSA120510  Gastridium phleoides S. S. Tillett 1956-7-6 609 Humboldt South slope along Bar Shanty Road, 5 miles from Orleans. 488 Comment
  UCD66724  Gastridium phleoides S. S. Tillett 1956-7-6 609 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 487 Comment
  CAS-BOT-BC58910  Gaultheria shallon Volney Rattan 1879-6-1 s.n. Humboldt unspecified Comment
  CHSC27317  Gaultheria shallon T. B. Devine 1977-8-20 458 Humboldt Kneeland Road, 1 mi n of Kneeland. 548 Comment
  RSA467233  Gaultheria shallon M. B. Dunkle 1936-8-20 233 Humboldt Hupa Mts. Road Orick to Klamath River. Comment
  UC412681  Gaultheria shallon Mrs. M. H. Manning 1901-7-27 316 Humboldt near Hupa (Bald Hills); Bald Hills Comment
  SEINET11996979  Gaultheria shallon F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 293 a Humboldt 2.4 mi W of US 101 on CA 169 from Klamath to Klamath Glen along Klamath River 50 Comment
  UC562499  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13047 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  JEPS27598  Gayophytum heterozygum Joseph P. Tracy 1936-8-8 15137 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC562365  Gayophytum heterozygum Joseph P. Tracy 1936-8-8 15137 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC162854  Genista monspessulana J. P. Tracy 1906-4-22 2413 Humboldt immediate vicinity Eureka 0 Comment
  UCD105720  Genista monspessulana Joseph M. DiTomaso 1976-3-28 342 Humboldt Arcata, 3rd and 'D' streets. Comment
  JEPS47044  Gentiana affinis var. ovata Joseph P. Tracy 1930-7-27 9110 Humboldt Bear River Ridge North Coast Ranges 609 Comment
  UC153983  Gentiana affinis var. ovata J. P. Tracy 1904-8-7 2139 Humboldt immediate vicinity Eureka (open grassy lands) 0 Comment
  UC562300  Gentiana affinis var. ovata Joseph P. Tracy 1933-10-1 13078 Humboldt hillsides Big Lagoon 91 Comment
  UC153980  Gentiana sceptrum J. P. Tracy 1900-8-26 930 Humboldt immediately vicinity Eureka 0 Comment
  UC562303  Gentiana sceptrum Joseph P. Tracy 1924-8-3 6768 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC2218  Geranium dissectum H. E. Parks, S. T. Parks Apr 1938 24118 Humboldt Spruce Cove, Trinidad 61 Comment
  UC198601  Geranium dissectum Joseph P. Tracy 1916-5-31 4697 Humboldt Holmes Flat, along Eel River from South Fork to Scotia Northern Coast Ranges, Eel River 60 Comment
  UC1197395  Geranium molle Joseph P. Tracy 1911-7-9 3463 Humboldt near Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC90389  Geranium pusillum Jean Hanson 1980-4-12 41 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island Comment
  UC492183  Geum macrophyllum var. perincisum Joseph P. Tracy 1932-7-14 10540 Humboldt at Corral Prairie, Klamath Mountains, Trinity Summit Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  HSC104327  Gilia capitata James Regan, Humboldt Redwood Co., LLC 2010-6-23 25 Humboldt Nanning Creek, east of Scotia 213 Comment
  CAS-BOT-BC226143  Gilia capitata subsp. pacifica Carl B. Wolf 1937-8-11 8901 Humboldt Fleener Creek, 1/2 mi. So. of Centerville 45 Comment
  RSA469341  Gilia capitata subsp. pacifica J. P. Smith 1973-5-26 6816 Humboldt Scotia Bluffs along the Eel River near Rio Dell. 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
  CAS-BOT-BC225472  Gilia millefoliata Harley P. Chandler 1901-5-1 1135 Humboldt Humboldt Bay 3 Comment
  UC1197913  Gilia tricolor subsp. diffusa Joseph P. Tracy 1914-5-14 4465 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UC1191701  Glaux maritima Malcolm A. Nobs, S. Galen Smith 1949-8-3 1201 Humboldt 2 mi n of Eureka (bordering Humboldt Bay); Humboldt Bay Comment
  UCD132389  Glebionis segetum Lincoln Constance 1934-6-25 927 Humboldt Bull Creek Region, South Fork Eel River, on east side of the road at Englewood across the road from Collins' Englewood Campground. Comment
  UC39035  Glyceria elata Harley P. Chandler Jun 1901 1526 Humboldt Klamath River; North Coast Ranges 426 Comment
  POM92418  Gnaphalium chilense L. R. Abrams 1922-6-25 8223 Humboldt 6 miles N of Garberville Comment
  HSC40378  Gnaphalium palustre Linda M. Barker 1976-8-2 1673 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  CAS-BOT-BC302534  Gnaphalium palustre Doris K. Kildale 1925-6-30 846 Humboldt Buhne's [Buhne] Point Comment
  HSC35784  Gnaphalium palustre Thomas W. Nelson, B. Reinhardt 1975-7-30 2100 Humboldt Road out Whiting Ridge Comment
  JEPS34049  Gnaphalium palustre Lincoln Constance 1934-6-12 871 Humboldt Bull Creek road and n bank of South Fork Eel River (Dyerville); , Bull Creek Region, Dyerville Comment
  CAS-BOT-BC304752  Grindelia hirsutula H. E. Parks; S. T. Parks 1930-9-14 0773 Humboldt North shore of Big Lagoon Comment
  HSC38496  Grindelia hirsutula R. Sutherland 1976-10-31 1 .311076 Humboldt Disturbed road edge of county road 290 Comment
  HSC90778  Grindelia hirsutula Peter Sorensen 1976-6-28 Humboldt Woodley Island Comment
  JEPS41875  Grindelia hirsutula W. L. Jepson 1902-8-4 2145 Humboldt seashore Capetown to Petrolia 3 Comment
  UC1347201  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt salt marsh bordering Humboldt Bay at Arcata Arcata (region of type locality) Comment
  UC665534  Grindelia hirsutula H. E. Parks Aug 1 1941-Sep 1 1941 24201 Humboldt near Arcata Comment
  HSC56405  Helenium bigelovii Griswold, Butler 1979-7-11 7011 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  CAS-BOT-BC306613  Helenium bigelovii Doris K. Kildale 1925-8-15 1173 Humboldt Elk Horn Prairie - Trinity Summit 1539 Comment
  HSC96470  Helenium bolanderi Gordon Leppig 1997-6-19 454 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  RSA18613  Helenium bolanderi C. B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. 6 Comment
  CAS-BOT-BC306870  Helenium bolanderi Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  RSA167314  Helenium bolanderi Joseph P. Tracy, H. E. Parks 1950-7-16 11686 Humboldt Park's place, 2 miles N of Trinidad. Comment
  RSA1499  Helenium puberulum E. R. Johnson 1929-08 1431 Humboldt Along the Redwood Hwy, S of Eureka. 30 Comment
  HSC6064  Helminthotheca echioides Wm. F. Bowman 1968-11-9 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  CAS-BOT-BC453382  Hemitomes congestum Gary Wallace 1973-7-11 1252 Humboldt Prairie Creek Redwoods State Park, north of Orick Comment
  HSC45215  Hemitomes congestum Louise Watson, Mary Lou Schreiber 1978-9-29 Humboldt West side of summit, 1/4 mi. N. of McKinleyville-Fieldbrook Rd. Bulk Collection 137 Comment
  CAS-BOT-BC310073  Hemizonella minima R. K. Gierisch; D. H. Esplin 1969-7-1 3535 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  HSC97470  Hemizonella minima Cara Witte 2007-5-23 92 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  LA203693  Hemizonia congesta subsp. tracyi S. K. Harris; 1936-6-20 sn Humboldt above Van Duzen River about 1 mi. W of Bridgeville Comment
  UC1223092  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1946-11-17 17664 Humboldt river bar of Eel at mouth of Van Duzen River; Eel River Comment
  UCD132992  Hemizonia congesta subsp. tracyi R. N. Raynor 1935-1 s.n. Humboldt above Fort Seward. 762 Comment
  UC180205  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta North Coast Ranges, Carlotta 60 Comment
  BLMAR674  Heracleum maximum Jennifer Wheeler 2013-6-7 674 Humboldt King range, Mattole Beach parking lot 6 Comment
  HSC91617  Hesperocyparis macrocarpa E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, near Ceremonial Rock Comment
  UC1116245  Heterocodon rariflorum Joseph P. Tracy 1942-6-15 17158 Humboldt Garberville 304 Comment
  UC1541522  Heterocodon rariflorum H. E. Parks and J. P. Tracy 1934-6-27 11084 Humboldt Grouse Mountain 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
  HSC74179  Heuchera merriamii M. A. Baker 1980-7-23 3176 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC425003  Heuchera micrantha var. micrantha Huron H. Smith 1911-6-6 3794 Humboldt Little River Jc. Comment
  HSC48819  Hieracium albiflorum Brad Klipfel 1973-7-31 232 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58325  Hieracium albiflorum Overton, Butler 1979-8-2 12622 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74734  Hieracium albiflorum Gail Newton 1981-7-24 2303 Humboldt Near Chaparral Mtn. 1433 Comment
  UC127713  Hieracium albiflorum Harley P. Chandler 1901-6-1 1329 Humboldt Hupa Indian Reservation North Coast Ranges, , Hoopa Indian Re 152 Comment
  CAS-BOT-BC312397  Hieracium albiflorum Henry M. Pollard 1948-7-18 s.n. Humboldt Red Cap Creek near Orleans Comment
  UC419046  Hieracium albiflorum H. E. Parks, J. P. Tracy 1930-9-15 768 Humboldt near Kneeland; Bald Hills Comment
  RSA168836  Hieracium bolanderi Joseph P. Tracy 1947-7-9 17849 Humboldt Horse Mountain 1432 Comment
  HSC74490  Hieracium greenei M. A. Baker 1980-7-24 3209 Humboldt Near Orleans Mtn. 1625 Comment
  UC165196  Hieracium nudicaule Joseph P. Tracy 1909-8-1 3066 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  SDSU1121  Hierochloe occidentalis D. F. Howe 1962-5-22 3304 Humboldt 3 miles east of Orick on Bald Mt. road 396 Comment
  UC205670  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt around Humboldt Bay (old Kneeland Road); Northern Coast Ranges 304 Comment
  HSC13459  Hippuris vulgaris Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  HSC13461  Hippuris vulgaris R. L. Jarvis 1962-4-18 28 Humboldt .5 mi. S of Mad River, .25 mi. W of Hwy. 101 15 Comment
  HSC34986  Hippuris vulgaris Thomas W. Nelson 1974-9-12 1708 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata Comment
  HSC95385  Hippuris vulgaris Andrea Pickart 2002-7-19 185 Humboldt Arcata Marsh in Log Pond 10 Comment
  UC183602  Hippuris vulgaris Joseph P. Tracy 1912-7-7 3737 Humboldt ditch at Bucksport (Humboldt Bay Region); Northern Coast Region, , Bucksport 0 Comment
  HSC10132  Holcus lanatus J. R. Eichelberger 1964-5-13 83 Humboldt 1/4 mile from U.S. 101 on the N side of the Mad River. Comment
  HSC37255  Holcus lanatus Lon Hall 1975-6-19 391 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC97396  Holcus lanatus J. Wendell Howe 1934-6-27 1278 Humboldt Arcata. Comment
  SD51261  Holcus lanatus D. F. Howe 1961-8-1 Humboldt 9 miles north of Arcata on #101 Comment
  UCD84884  Holcus mollis R. N. Raynor 1935-6-7 s.n. Humboldt Fort Seward. Comment
  CAS-BOT-BC149896  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt North coast range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 304 Comment
  HSC18682  Holodiscus discolor H. E. Parks, S. T. Parks Jun 1927 257 Humboldt Hartsook 122 Comment
  HSC58138  Holodiscus discolor Gilbert Muth 1979-8-1 12156 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC99588  Holodiscus discolor K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 253 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS44652  Holodiscus discolor L. Constance 1934-6-4 812 Humboldt Look Prairie; Dyerville; Bull Cr. road; South Fork of Eel River; Look Prairie, and Bull Cr. road, to Dyerville. Comment
  UC154212  Holodiscus discolor J. P. Tracy 1909-7-3 3002 Humboldt immediate vicinity of Eureka (near Ocean View Cemetery) 0 Comment
  UC666850  Holodiscus discolor Joseph P. Tracy 1933-8-30 13031 Humboldt Grouse mountain 1524 Comment
  UC666853  Holodiscus discolor Joseph P. Tracy 1936-8-7 15114 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  UC175631  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1912-7-31 3909 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain, Burr Valley 1066 Comment
  HSC26777  Hordeum marinum subsp. gussoneanum Thomas W. Nelson 1971-5-31 464 Humboldt 915 Comment
  HSC10223  Hordeum murinum subsp. glaucum E. W. Styskel 1964-4-12 67 Humboldt Corner of Center St. and Hwy. 101 in Rio Dell. Comment
  POM264835  Horkelia tridentata subsp. flavescens Lincoln Constance, A. A. Beetle 1940-5-17 2613 Humboldt Above Van Duzen River, 1 mile below Dinsmore's 762 Comment
  HSC96225  Horkelia tridentata var. flavescens Eric Schori, Kazuyuki Ishimaru 2005-6-24 15 Humboldt Titlow Hill Rd. S of Hwy. 299, Buck Flat 1595 Comment
  HSC96952  Horkelia tridentata var. flavescens Whitney Meier, Elizabeth Kimbrough 2007-6-11 3 Humboldt Cold Springs Camp 11.9 mi. S of Hwy. 299 on USFS Rd. NF 1 Comment
  HSC97225  Horkelia tridentata var. flavescens K. Auker, R. Battleson 2007-6-11 6 Humboldt 11.9 mi. S of Hwy. 299 on USFS Rd. NF1 1585 Comment
  CAS-BOT-BC206125  Hosackia crassifolia H. E. Parks; J. P. Tracy 1930-9-15 0762 Humboldt Kneeland, Bald Hills Comment
  HSC100883  Hosackia gracilis Carl C. Marshall Apr 1885 113 Humboldt Coast region everywhere. Comment
  SEINET957087  Hosackia rosea H. E. Parks 1932-1 3698 Humboldt Bishop Pine Lodge, Trinidad. 61 Comment
  UC1198411  Hypericum anagalloides Joseph P. Tracy 1913-7-13 4358 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  UC275343  Hypericum anagalloides Joseph P. Tracy with H. E. Parks 1924-8-3 6757 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  CAS-BOT-BC401227  Hypericum perforatum Doris K. Kildale 1927-7-3 3655 a Humboldt Willow Creek Flat 152 Comment
  RSA245281  Hypericum perforatum J. D. Ackerman, A. M. Montalvo 1973-6-17 57 Humboldt 1 mile west of Redwood Creek, along highway 299. Comment
  SDSU6911  Hypericum perforatum D. F Howe 1961-8-2 3118 Humboldt 10.5 miles east of Orick on Bald Mt.road, humboldt, Co. 762 Comment
  CAS-BOT-BC312869  Hypochaeris L. R. Abrams 1916-7-11 6045 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  HSC26376  Hypochaeris radicata T. O. Osborne 1970-9-16 34 Humboldt Prisoner Rock, Trinidad Comment
  CAS-BOT-BC206836  Iliamna latibracteata L. B. Kildale 1930-8-10 10535 Humboldt Snow Camp, head of Redwood Creek Comment
  CAS-BOT-BC206846  Iliamna latibracteata C. B. Wolf 1931-8-28 2367 Humboldt Redwood Highway, 3 miles north of Orick, Davison's Ranch on Prairie Creek 60 Comment
  RSA12527  Iliamna latibracteata Carl B. Wolf 1934-7-3 5907 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  SEINET200732  Ipomopsis aggregata J. P. Tracy 1932-7-12 10440 Humboldt Trinity summit at Corral Prairie 1585 Comment
  HSC23734  Iris douglasiana Tim Baroni 1971-7-5 101 Humboldt 8 mi. E of Petrolia Comment
  UC14921  Iris douglasiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5441 Humboldt Hubbard's Station to Elk Prairie; North Coast Ranges Comment
  SD42572  Iris macrosiphon Carl B. Wolf 1937-6-19 8913 Humboldt North Coast Range, 7 & 2/10 miles above Bridgeville, on grade to Dinsmores. Moist open forest ridge. 456 Comment
  UC14930  Iris tenuissima Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  CDA14235  Isatis tinctoria R. Spadoni 1998-5-11 s.n. Humboldt Hwy 299 near Blue Lake. 0 Comment
  JEPS60150  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold Springs Grouse Mt; Grouse Mt., Cold Springs 1432 Comment
  CAS-BOT-BC112459  Isolepis cernua Carl B. Wolf 1927-8-22 790 Humboldt Big Lagoon Comment
  SEINET4170786 Image available Isolepis cernua Unknown 1920-6-6 5336 Humboldt Spring along Freshwater Creek 30 Comment
  JEPS63980  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt Salmon Creek Valley Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley (around Humboldt Bay) 30 Comment
  SEINET10474757  Jaumea carnosa Mary Susan Taylor 1990-8-22 Taylor 6088 Humboldt Cypress Grove Area, Samoa Peninsula, along strand, Eureka. Comment
  CAS-BOT-BC110012  Juncus Henry M. Pollard 1956-10-8 s.n. Humboldt Along road above Ullathorne Riffle, ca. 3 miles southwest of Orleans. Comment
  UC185007  Juncus balticus subsp. ater Joseph P. Tracy 1912-7-21 3787 Humboldt Alton Northern Coast Region 30 Comment
  CHSC43010  Juncus breweri L. P. Janeway 1987-7-31 2538 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  UC14890  Juncus covillei var. obtusatus Chesnut and Drew 1888-7-29 Humboldt Grouse Creek Comment
  UC1151998  Juncus occidentalis Joseph P. Tracy 1930-7-17 8981 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC212985  Juncus orthophyllus Joseph P. Tracy 1919-9-22 5277 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  HSC79500  Juncus patens Kenneth Clark 1980-6-14 682 Humboldt Shelter Cove, N Fork of Dead Man's Gulch. 122 Comment
  UC201996  Juncus saximontanus Joseph P. Tracy 1918-7-5 5027 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
Read comments
Dec 13 2006
  HSC57962  Juncus tenuis G. L. Clifton, Terry Griswold 1979-7-31 11667 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  SEINET8567059 Image available Juncus xiphioides John Thomas Howell 1936-8-28 12882 Humboldt 4.5 miles from Dinsmores on road to Bridgeville Comment
  CAS-BOT-BC235876  Keckiella corymbosa L. B. Kildale 1930-8-3 10357 Humboldt Chaparral Mountain at Bug Creek 914 Comment
  RSA79855  Keckiella corymbosa F. W. Peirson 1926-7-12 7025 Humboldt Klamath River near Weitchpec. Comment
  SD87718  Keckiella corymbosa Frank W. Peirson 1926-7-12 7025 Humboldt Klamath River near Weitchpec Comment
  UC1222789  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19315 Humboldt opposite mouth of Salmon River (at Ishi-Pishi Falls, w side of Klamath River); Klamath River Comment
  UCSB30601  Kickxia elatine Edwards, David 1974-7-26 Humboldt Pond ca. 50 ft. NW of Grand Rd., ca. 1 1/2 mi.SW of Korbel and ca. 11/2 mi. NE of Mad River 18 Comment
  UC1196128  Kopsiopsis strobilacea Joseph P. Tracy Jul 16-19, 1930 9030 Humboldt Northern Coast Ranges. South Fork Mountain, along summit near Blake lookout. 1706 Comment
  UC1223227  Lactuca ludoviciana Joseph P. Tracy 1950-9-22 19368 Humboldt 8 mi below Orleans; Klamath River, Slate Creek 121 Comment
  UC34491  Lagophylla ramosissima Chestnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  UCD125067  Lamium purpureum Joseph P. Tracy 1945-5-10 17508 Humboldt Eureka. 45 Comment
  PASA936  Lapsana communis Frank W. Peirson 1926-7-12 Humboldt Orick, sea level Comment
  UCD133638  Lapsana communis Joseph P. Tracy 1976-6-6 7553 Humboldt Bair's on Redwood Creek. 304 Comment
Read comments
Jun 28 2015
  CAS-BOT-BC337990  Lasthenia californica Carl B. Wolf 1937-6-14 8812 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  CAS-BOT-BC337995  Lasthenia californica Doris K. Kildale 1928-5-15 6031 Humboldt Bug Creek, Chaparral Mountain 1524 Comment
  CAS-BOT-BC324946  Lasthenia californica subsp. bakeri Dr. A. Kellogg; W. G. W. Harford 1868-1-1 464 Humboldt Eureka Comment
  JEPS10178  Lasthenia californica subsp. californica W. L. Jepson 1902-6-10 1885 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC1199134  Lasthenia californica subsp. californica Joseph P. Tracy 1925-5-30 7050 Humboldt McClellan Mountain Northern Coast Ranges, McClellan Mountain 822 Comment
  JEPS17255  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC594160  Lasthenia glaberrima S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3439 Humboldt nw slopes Buck Mountain 822 Comment
  HSC26359  Lasthenia maritima T. O. Osborne 1970-6-18 47 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  HSC26361  Lasthenia maritima T. O. Osborne 1970-5-24 89 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  UC1199076  Lathyrus glandulosus Joseph P. Tracy 1930-8-24 9170 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC709418  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1941-3-26 16844 Humboldt w of mouth of South Fork of Trinity River 304 Comment
  BLMAR615  Lathyrus littoralis Jennifer Wheeler 2011-5-20 615 Humboldt King range, Mattole Beach Sand Dunes 3 Comment
  HSC38926  Lathyrus littoralis Linda M. Barker 1976-5-13 1489 Humboldt 3 mi. W of Arcata. Comment
  UC303184  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1923-5-20 6241 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA64949  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19094 Humboldt 3 miles W of Willow Creek, near Highway #299. Comment
  HSC14706  Lathyrus vestitus subsp. bolanderi H. E. Parks Jun 1931 1082 Humboldt Kneeland Comment
  RSA168907  Lathyrus vestitus subsp. bolanderi Joseph P. Tracy 1942-7-26 17298 Humboldt Valley of South Yager Creek. 610 Comment
  UC168987  Lathyrus vestitus var. vestitus Joseph P. Tracy 1912-8-3 3971 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC325993  Layia carnosa Greg de Nevers 2001-4-18 12253 Humboldt Lanphere-Christenson dunes, near Arcata 9 Comment
  SEINET3164358  Ledum glandulosum N. Dennis 1965-6-3 143 Humboldt Big Lagoon County Park; southwest corner of Big Lagoon Comment
  UC582427  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1936-8-23 15168 Humboldt vicinity Carlotta 30 Comment
  JEPS36507  Leontodon saxatilis subsp. saxatilis W. L. Jepson 1936-8-17 17926 Humboldt 2 1/2 mi s Fields Landing Comment
  HSC69894  Lepidium campestre Thomas W. Nelson, Jane P. Nelson 1977-7-29 3638 Humboldt Beside Hwy. 36 at head of Larabee Valley 823 Comment
  UC195426  Lepidium virginicum Joseph P. Tracy 1915-9-12 4670 Humboldt opposite Laribee Creek; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  SEINET4691296 Image available Leucanthemum vulgare Joseph P. Tracy 1918-1 5080 Humboldt Northern Coast Range; Around Humboldt Bay; Humboldt Hill 152 Comment
  CAS-BOT-BC334619  Leucanthemum vulgare L. R. Abrams; R. Bacigalupi 1922-6-25 8262 Humboldt Between Trinidad and Big Lagoon Comment
  HSC63201  Lewisia leeana M. A. Baker 1979-6-27 929 Humboldt Head of Grogan Hole at the head of Oregon Creek Comment
  JEPS14228  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt at crossing of Kneeland to Bridgeville rd. North Yager Creek 396 Comment
  HSC76407  Ligusticum californicum Teresa Prendusi 1981-7-24 456 Humboldt Near Whiteys Peak 1585 Comment
  HSC56332  Ligusticum grayi Overton, Butler 1979-8-2 12702 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA168923  Lilaea scilloides Joseph P. Tracy 1950-6-18 18844 Humboldt Cape Mendocino, near the ocean shore, south of point of the Cape: Davis Creek. 3 Comment
  HSC21520  Lilaeopsis occidentalis R. W. Spjut 1968-10-26 215 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC21523  Lilaeopsis occidentalis E. Hunt 1949-5-18 21 Humboldt Humboldt Bay Comment
  HSC15568  Lilium columbianum P. A. Mansfield 1967-7-8 15 Humboldt Along French Camp Ridge Comment
  HSC15569  Lilium columbianum D. G. Hauger 1967-7-22 41 Humboldt 0.5 mi. S of Dry Lagoon Comment
  UC179932  Lilium columbianum Joseph P. Tracy 1914-9-7 4617 B Humboldt 10 mi e Korbel (near the Bald Mt. House); Northern Coast Ranges 914 Comment
  UCD139729  Lilium columbianum H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad on Redwood Highway. Comment
  RSA34281  Lilium humboldtii subsp. humboldtii J. Wendell Howe 1934-07 s.n. Humboldt Bald Mountain Comment
  HSC33260  Lilium kelloggii A. M. Montalvo, J. D. Ackerman 1974-8-1 399 Humboldt 1.0 mi. W of Kneeland Post Office on Greenwood Heights Rd. Comment
  UC984813  Lilium kelloggii A. M. Vollmer and L. Beane Jun 1951 148 Humboldt e of Korbel (on road to Bald Mountain) Comment
  CAS-BOT-BC130688  Lilium occidentale A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt Table Bluff, near Eureka Comment
  RSA12542  Lilium pardalinum Carl B. Wolf 1934-7-2 5896 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC75488  Lilium pardalinum subsp. pardalinum J. O. Sawyer 1980-7-18 3627 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC99865  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau 1979-8-10 713 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  UC1198232  Lilium rubescens J. P. Tracy 1908-7-31 2936 Humboldt near Bridgeville 152 Comment
  RSA44370B  Lilium washingtonianum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1677 Comment
  UC1198250  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1913-7-20 4366 Humboldt ridge between Redwood Creek and Willow Creek (on Willow Creek road); Northern Coast Ranges 914 Comment
  HSC45598  Limnanthes douglasii subsp. nivea Diane L. Reed 1978-5-27 131 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  UC1198591  Linanthus androsaceus Joseph P. Tracy 1923-6-3 6252 Humboldt Kneeland Prairie 762 Comment
  UC1198593  Linanthus androsaceus Joseph P. Tracy 1922-6-18 6093 Humboldt Head of Middle Yager Creek Northern Coast Ranges 762 Comment
  UC162582  Linanthus filipes Joseph P. Tracy 1911-7-9 3456 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  SFV18546  Linaria canadensis E. Cohen 2002-4-15 23 Humboldt Eureka. Comment
  RSA54141  Lindernia dubia var. dubia H. M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  SEINET5740993 Image available Linnaea borealis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6105 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 2.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7NO4N, the road to Groves Prairie. The collection site is a short distance up this road.; Groves Prairie Comment
  SJSU918  Linnaea borealis var. longiflora J. W. Tilden 1946-6-2 999 Humboldt Bluff Cr c. 1.5 mi above its junction with Klamath R Comment
  HSC15824  Linum bienne T. M. Mingo May 1965 Humboldt E of parking area at College cove. Comment
  HSC97453  Linum bienne Cara Witte 2007-6-7 228 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  JEPS8444  Listera caurina Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3415 Humboldt ridge between Mad River and Redwood Creek; Snow Camp, Bald Mountain ridge 1432 Comment
  HSC59489  Listera cordata var. nephrophylla M. A. Ericksen 1979-4-28 220 Humboldt Near roadside leading to Camp Bouer, Korbel Comment
  SACT002876  Lithocarpus densiflorus C. White 1962-5-13 Humboldt Redwood forest along HIghway 299, 16 miles east of Arcata, ca. Comment
  UC35034  Lithocarpus densiflorus Chesnut and Drew 1888-7-25 Humboldt Grouse Creek Comment
  CAS-BOT-BC36101  Lithocarpus densiflorus var. densiflorus L. B. Kildale 1930-8-10 10536 Humboldt Snow Camp, head of Redwood Creek Comment
  RSA247208  Lithocarpus densiflorus var. densiflorus Gary D. Wallace 1971-7-28 946 Humboldt Along King Range Co. Rd. ca. 4 mi SE of Shelter Cove. Comment
  RSA44461  Lithocarpus densiflorus var. densiflorus H. M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail. 762 Comment
  CAS-BOT-BC36581  Lithocarpus densiflorus var. echinoides Doris Kildale Gillespie 1931-6-7 10604 Humboldt South Fork Mt., Brush lookout 1726 Comment
  UC1196498  Lithophragma affine Joseph P. Tracy 1921-4-24 5433 Humboldt Phillipsville Flat Northern Coast Ranges, South Fork of Eel River (South Fork of Eel River) 91 Comment
  UC1196488  Lithophragma campanulatum Joseph P. Tracy 1933-7-26 12926 Humboldt on the s slope Grouse Mountain; s slope Grouse Mountain 1219 Comment
  UC1223120  Logfia filaginoides Joseph P. Tracy 1947-5-24 17695 Humboldt on rocky cliff known as Devil's Canyon Comment
  CAS-BOT-BC342350  Logfia gallica Henry M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  CAS-BOT-BC283406  Lolium multiflorum A. A. Heller 1923-7-9 13779 Humboldt In a salt flat between Eureka and Arcata Comment
  UC163597  Lolium multiflorum Jos. Burtt Davy 1899-5 5556 Humboldt Scotia Comment
  HSC89608  Lolium perenne M. Roantree 1985-5-2 33 Humboldt E side of Trinidad Head. Comment
  UCD66673  Lolium temulentum M. A. Jargas 1926-6-8 Humboldt Happy Valley. Comment
  HSC99106  Lomatium dasycarpum subsp. dasycarpum Cara Witte 2008-6-18 743 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1375 Comment
  RSA167240  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1950-7-6 19000 Humboldt On the Albee Road, 2 miles south of Burr Valley Comment
  HSC55624  Lomatium macrocarpum Overton, Butler 1979-7-24 9575 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC74029  Lomatium macrocarpum Gail Newton 1980-7-22 1681 Humboldt Near Devils Backbone 1554 Comment
  JEPS81116  Lomatium macrocarpum D. H. Norris 1970-5-20 12179 Humboldt crest of ridge on Big Hill Rd. e. of Hoopa Comment
  CHSC97956  Lomatium nudicaule Kaylea Eickhoff; Cara M. Witte 2005-6-3 1 Humboldt White Oak Opening, 19.3 miles south of Hwy. 299 on NF1. UTM 0441136, 4507151. 1240 Comment
  HSC38861  Lomatium utriculatum J. P. Smith, J. O. Sawyer 1973-5-12 6678 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC58184  Lonicera conjugialis G. L. Clifton, Griswold 1979-8-2 12272 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA171943  Lonicera hispidula var. vacillans R. F. Thorne 1957-9-2 19002 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UCSB22320  Lonicera involucrata Keefe, Joseph 1967-7-8 Humboldt Junction Crannell Road and Little River Drive, north of Eureka 6 Comment
  CAS-BOT-BC241486  Lonicera involucrata var. ledebourii B. D. Stark 1929-7-24 1387 Humboldt 8 miles south of Eureka 30 Comment
  HSC97445  Lonicera involucrata var. ledebourii Ivy Watson 2008-10-11 57 Humboldt Near Mad River mouth, S bank, just above high tide line. Comment
  SEINET3523157 Image available Lotus aboriginus Joseph P. Tracy 1949-6-20 18321 Humboldt Near Boynton Prairie, 12 mi SE of Arcata Comment
  HSC26447  Lotus corniculatus Brad Klipfel 1973-4-28 16 Humboldt Along Canyon Creek, SW of Korbel Comment
  SDSU4292  Lotus corniculatus D. F. Howe 1959-8-4 2808 Humboldt Roadside near bridge over Eureka slough by Humboldt Bay. Comment
  RSA20779  Lotus crassifolius Carl B. Wolf 1937-8-13 9243 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  SEINET12148049  Lotus formosissimus J. P. Tracy 1950-1 18746 Humboldt Capetown, on Bear River, top of Cape Ridge - `miE of cape Mendocino 152 Comment
  RSA406183  Lotus humistratus Lester Rowntree 1931-7-21 s.n. Humboldt Mattole River Bridge 2 miles from Petrolia. Comment
  UC1197307  Lotus humistratus Joseph P. Tracy 1929-4-28 8546 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  SEINET12154204  Lotus micranthus J. P. Tracy 1936-1 14866 Humboldt Coast BLuffs nr Trinidad 61 Comment
  UC495717  Lotus oblongifolius var. oblongifolius Joseph P. Tracy Jul 16 1930-Jul 19 1930 8997 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  JEPS79926  Lotus oblongifolius var. oblongifolius Joseph P. Tracy Jul 16 1930-Jul 19 1930 8997 Humboldt McKay Cmap Northern Coast Ranges, South Fork Mountian 1676 Comment
  UC1223424  Lotus pinnatus Joseph P. Tracy 1942-6-15 17134 Humboldt Englewood Prairie Comment
  CDA27306  Lotus purshianus T. C. Fuller 1958-6-17 1721 Humboldt Petrolia, Lower Mattole. 0 Comment
  HSC97236  Lotus purshianus var. purshianus Thomas W. Nelson, Dick Brummitt & Barbara Ertter 2004-7-4 9281 Humboldt Trinity River bar down stream from mouth of Willow Creek 152 Comment
  SEINET3560061 Image available Lotus stipularis H. E. Parks 1932-7-1 Humboldt Bishop Pine Lodge, Trinidad 61 Comment
  HSC95074  Lotus unifoliolatus var. unifoliolatus Andrea Pickart 2002-7-2 157 Humboldt Humboldt Bay Dunes, Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  UC1196934  Ludwigia palustris Joseph P. Tracy 1923-6-27 6383 Humboldt shore of Lack Pond (opposite mouth of Willow Creek); Northern Coast Ranges, Trinity R. Valley, Lack Pond 182 Comment
  HSC74666  Luina hypoleuca Gail Newton 1981-8-7 2423 Humboldt Near Bug Creek Butte 1244 Comment
  UC503018  Lupinus Joseph P. Tracy 1927-6-18 8189 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  UC177184  Lupinus adsurgens Joseph P. Tracy 1913-6-19 4200 A Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River, Dinsmore' 762 Comment
  UC1776380  Lupinus albicaulis R. Spellenberg 1990-7-9 Humboldt Extreme E edge county, 7 air mi. WNW of Hyampom, 42 mi S of Calif Hwy 299 and Berry Summit on USFS Rd. 1, ca 1 mi S of Blake Mtn. on South Fork Mountain. 1767 Comment
  UC1223268  Lupinus albicaulis var. shastensis Joseph P. Tracy 1949-8-7 18433 Humboldt on road from Hoopa to Box Camp at summit of ridge near where the road to Big Hill turns off Trinity Summit; , rd fr Hoopa to Box Camp Comment
  UC1223274  Lupinus albicaulis var. shastensis Joseph P. Tracy 1940-7-14 16687 Humboldt Wilder Ridge Comment
  UC176296  Lupinus albifrons Joseph P. Tracy 1913-6-14 4133 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC58413  Lupinus andersonii Griswold, Butler 1979-7-12 7173 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CDA27379  Lupinus arboreus T. C. Fuller 1961-9-28 7052 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  HSC14778  Lupinus arboreus R. A. Rasp 1964-5-17 39 Humboldt 1/2 mi. N of Fairhaven on the Samoa pennisula Comment
  HSC14779  Lupinus arboreus Francis Winter 1960-5-6 Humboldt Little River State Park, N of Arcata Comment
  SEINET3132550  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata, Samoa Peninsula. Christenson Farm Comment
  UC1129355  Lupinus arboreus H. L. Person 1931-7-30 Humboldt Fieldbrook; Eureka Quadrangle Comment
  UC1197255  Lupinus arboreus J. P. Tracy 1912-3-31 3566 Humboldt Blue Lake 30 Comment
  UC156991  Lupinus bicolor Joseph P. Tracy 1908-6 2693 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  BLMAR731  Lupinus bicolor Jennifer Wheeler 2015-4-8 731 Humboldt Lacks Creek, Lower Beaver Ridge Prairie 914 Comment
  JEPS65283  Lupinus latifolius var. latifolius Lincoln Constance 1934-5-29 714 Humboldt Upper Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC150137  Lupinus littoralis Joseph P. Tracy 1911-11-5 3556 Humboldt Ocean Beach Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  UC774981  Lupinus luteolus Carl B. Wolf 1937-8-12 9211 Humboldt on road to Kneeland 20 mi n Bridgeville; North Coast Range 457 Comment
  UC1197272  Lupinus nanus Joseph P. Tracy 1914-5-14 4450 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  UC427882  Lupinus nanus H. E. Parks 1930-5-25 869 Humboldt Laribee Valley; in open meadows in Laribee Valley Comment
  SEINET6932723 Image available Lupinus polycarpus Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt About 4 miles southeast of Kneeland. Comment
  HSC36275  Lupinus rivularis John Rehling 1974-7-12 12 Humboldt Near the Bald Hills Rd., 3.5 mi. E of Hwy. 101 Comment
  POM304177  Lupinus rivularis Ynez Whilton Winblad 1941-6-28 s.n. Humboldt Between Orick and Crescent City. Comment
  UC503019  Lupinus rivularis Joseph P. Tracy 1927-6-18 8189 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  HSC14891  Lupinus variicolor R. I. Bonn 1965-5-9 42 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  UC1152142  Luzula cascadensis Joseph P. Tracy 1930-7-17 8972 Humboldt Near McKay Camp, South Fork Mountain 1676 Comment
  CHSC118269  Luzula macrantha Peter F. Zika 2011-7-3 25499 Humboldt Titlow Hill Road, 4.2 road miles SE of Route 299 at Berry Summit, 0.8 air km SSW of Horse Mountain. Outer North Coast Ranges (NCoRO). 1390 Comment
  UC302166  Luzula parviflora Joseph P. Tracy 1925-7-5 7171 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  CHSC115875  Luzula subsessilis Peter F. Zika 2011-7-3 25492 Humboldt Titlow Hll Road, 3 road miles SE of Route 299 at Berry Summit,1 air km SW of Horse Mountain. 1190 Comment
  RSA32655  Lychnis coronaria Doris K. Kildale 1927-7-3 3651 Humboldt Willow Creek Flat. Comment
  UCD98226  Lychnis coronaria Philip A. Munz 1952-6-27 17799 Humboldt Boise Creek Public Camp west of Willow Creek. 365 Comment
  UC1440279  Lycopodiella inundata L. L. Kiefer and D. Branscomb 1964-5-20 1436 Humboldt in the sphagnum bog Big Lagoon State Park 15 Comment
  CAS-BOT-BC61934  Lycopodium clavatum Donald Branscomb 1959-9-1 s.n. Humboldt Trinidad Comment
  UC534971  Lycopodium clavatum H. E. and W. K. Parks 1932-7-30 1132 Humboldt Hammond Lumber Company Camp 21 Trinidad 152 Comment
  CAS-BOT-BC61933  Lycopodium clavatum Wayne Roderick 1967-9-15 s.n. Humboldt Camp 18, Georgia-Pacific Company e. of Trinidad 30 Comment
  UC577388  Lycopus americanus Joseph P. Tracy 1934-8-31 6853 Humboldt Klamath R. at mouth of Bluff Creek; Klamath R. 91 Comment
  CAS-BOT-BC215685  Lycopus uniflorus Henry M. Pollard 1956-10-9 s.n. Humboldt Sand-bar near Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  UC577389  Lycopus uniflorus Joseph P. Tracy 1925-10-18 7284 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  CHSC84688  Lysichiton americanus L. P. Janeway 2003-7-27 7927 Humboldt North Coast. Edge of marsh on south side of southwest end of Hwy 101 causeway across Big Lagoon. 2 Comment
  HSC59495  Lysichiton americanus M. A. Ericksen 1979-4-20 212 Humboldt Adjacent to Cranell Rd. and Little River Dr. junction Comment
  HSC100370  Lythrum salicaria L. D. Hoover 1996-4-29 Humboldt Along Hwy. 36, private property (Simmons). Comment
  CAS-BOT-BC342805  Madia elegans S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3483 Humboldt Highway about one mile west of Bridgeville Comment
  CAS-BOT-BC342800  Madia elegans Joseph P. Tracy 1934-8-24 13599 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA44409  Madia elegans subsp. elegans H. M. Pollard 1948-7-24 s.n. Humboldt Near Orleans Comment
  HSC38100  Madia exigua Thomas W. Nelson, James Nelson 1976-5-30 2623 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC343020  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  UC581815  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC343025  Madia gracilis Doris K. Kildale 1927-6-25 3564 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  CAS-BOT-BC343589  Madia sativa Joseph P. Tracy 1936-8-24 15178 Humboldt Fickle Hill, 6 miles Southeast of Arcata 609 Comment
  HSC40379  Madia sativa Linda M. Barker 1976-6-14 1592 Humboldt 3 mi. W of Arcata Comment
  UCD134335  Madia sativa Linda M. Barker 1976-7-5 1636 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA246852  Mahonia nervosa R. F. Thorne, P. Everett 1965-8-5 35138 Humboldt Mt. Chamisal: below sumit. 534 Comment
  CHSC2298  Maianthemum dilatatum M. Anthony 1960-5-14 Humboldt Arcata. Comment
  CHSC2299  Maianthemum dilatatum M. Anthony 1960-5-14 Humboldt Arcata. Comment
  CAS-BOT-BC508519  Maianthemum dilatatum Alice Eastwood 1907-4-21 35 Humboldt Port Trinidad Comment
  RSA90673  Maianthemum dilatatum E. K. Balls, Lee W. Lenz 1956-6-12 21668 Humboldt 4.7 miles south of Humboldt-Del Norte county line, U.S. Highway 101, Arcata to Crescent City 61 Comment
  UCD139077  Maianthemum racemosum T. E. Weier 1942-5-22 s.n. Humboldt near Dyerville, Highway 101. Comment
  HSC40028  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson, Jane P. Nelson 1976-6-22 2874 Humboldt Area at Goat Hill. 1666 Comment
  HSC54225  Maianthemum racemosum subsp. amplexicaule Griswold, Butler 1979-7-12 7290 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  CAS-BOT-BC511457  Maianthemum racemosum subsp. amplexicaule M. P. Dillingham 1972-4-30 s.n. Humboldt Vicinity of Whitehorn, Douglas fir forest Comment
  RSA135322  Maianthemum racemosum subsp. amplexicaule Volney Rattan 1883-06 s.n. Humboldt Near Summit between Pilot Creek and South Fork Trinity River Comment
  RSA289948  Maianthemum racemosum subsp. amplexicaule Lincoln Constance 1934-6-2 793 Humboldt Bull Creek road to mouth of Bull Creek, and up Bull Creek. Bull Creek region, South Fork Eel River Comment
  HSC44103  Malacothrix floccifera Thomas W. Nelson, Jane P. Nelson 1977-8-6 3686 Humboldt Along Rd. 2S08 near Alder Spring 1524 Comment
  CAS-BOT-BC540127  Malus domestica Jay B. Walker 1995-4-26 1386 Humboldt Six Rivers National Forest. Hwy 36. 2km W of town of Cobbs. 800 Comment
  UC176969  Malva nicaeensis Joseph P. Tracy 1912-6-9 3687 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  HSC89477  Marah oregana P. A. Daly 1986-3-12 89 Humboldt Trinidad Head 61 Comment
  SDSU5797  Marah oregana D. F. Howe 1961-8-1 3116 Humboldt 3.3 miles north of Trinidad on #101. Comment
  HSC95680  Marah oregana Steven Lee 2004-4-11 16 Humboldt About 1 mi. N of Scenic Dr., Houda Point. Off of Hwy. 101, Westhaven. Comment
  JEPS42491  Marah oregana W. L. Jepson and W. W. Mott 1903-6-23 2207 Humboldt White Thorn Comment
  RSA273320  Marah oregana J. D. Ackerman 1975-6-10 451 Humboldt 1 mile N of Samoa Bridge turnoff from Samoa Blvd., S of Manila, Humboldt Bay Comment
  HSC6021  Matricaria discoidea Francis Winter 1960-4-23 Humboldt 4 mi. N of Dollar Ranch, on Korbel-Maple Creek Rd. 244 Comment
  UC1199281  Matricaria discoidea Joseph P. Tracy 1913-6-22 4265 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of the Van Duzen River 762 Comment
  UC16095  Medicago polymorpha J. Burtt Davy 1899-6-15 5531 Humboldt around Scotia; North Coast Ranges Comment
  HSC1869  Medicago polymorpha P. W. Shields 1956-4-14 Humboldt HSU campus Comment
  SEINET202035  Melica aristata Joseph P. Tracy 1948-8-10 18157 Humboldt Trinity summit. On ridge 2 mi. east of Grove's Prairie. Comment
  UC526915  Melica bulbosa Joseph P. Tracy 1932-7-12 10445 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 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
  CAS-BOT-BC281327  Melica harfordii Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  UC53675  Melica harfordii Jos. Burtt Davy 1899-6-19 5661 A Humboldt Hoopa Mt. Humboldt; Hoopa Mt. Comment
  UC53738  Melica harfordii H. P. Chandler 1901-1 1386 Humboldt Hupa Valley Comment
  SEINET200110 Image available Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Trinity Summit head of Brett Hole 1830 Comment
  UC1197422  Melilotus indicus Joseph P. Tracy 1933-5-20 12232 Humboldt Cape Mendocino; near ocean 9 Comment
  POM283187  Melissa officinalis Lyman Benson 1929-7-16 91 Humboldt Weott Ranger Station. Comment
  HSC49016  Mentha pulegium Patricia Shesgreen 1978-8-2 127 Humboldt Along rd. at 11th and B St. Arcata Comment
  JEPS80895  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1573 Humboldt Mile 133.12, U. S. Highway 101 Mile 133.12; , U. S. Highway 101 Comment
Read comments
Jul 9 2015
  UC527824  Menziesia ferruginea Ira L. Wiggins 1932-6-18 5866 Humboldt 2 mi e of Bayside (along Jacoby Creek); Jacoby Creek Comment
  CAS-BOT-BC322622  Microseris Joseph P. Tracy 1936-6-28 15027 Humboldt Lake Prairie, Baldt Mountain 1066 Comment
  UC1223203  Microseris bigelovii Joseph P. Tracy 1938-5-31 18014 Humboldt near Alder Point (along road to Harris, 1 mi sw) Comment
  CHSC93621  Microseris borealis K. L. Chambers 1957-8-31 1225 Humboldt Lake Prairie, on road from Bald Mt. to Snow Camp, ca. 9 mi. S of Ranger Station. In bog, SE end of the lake. Comment
  SEINET11810179  Microseris laciniata H. P. Chandler 1901-1 1408 Humboldt Klamath River 244 Comment
  HSC74187  Microseris nutans Gail Newton 1980-6-28 722 Humboldt Near Mad River Butte. 1536 Comment
  RSA167416  Microsteris gracilis subsp. gracilis Joseph P. Tracy 1950-5-7 18648 Humboldt Valley of South Yager Creek 762 Comment
  HSC20645  Mimulus aurantiacus var. aurantiacus Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  JEPS87265  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-6 1115 Humboldt just n Miranda (0.1 mi s of bridge over Bridge Creek along Hwy 254 (parallels Hwy 101)) 100 Comment
  UC26714 Image available Mimulus aurantiacus var. pubescens J. Burtt Davy before June, 1894 Humboldt Comment
  UC1103337  Mimulus douglasii Joseph P. Tracy 1930-5-4 8689 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC147884  Mimulus grandis J. P. Tracy 1903-6-14 1923 Humboldt immediate vicinity Eureka 0 Comment
  UC147914  Mimulus grandis J. P. Tracy 1900-8-5 911 Humboldt immediate vicinity Eureka 0 Comment
  UC1191884  Mimulus grandis Malcolm A. Nobs, S. Galen Smith 1949-8-3 1192 Humboldt southern outskirts Eureka Comment
  SEINET12330005  Mimulus guttatus F. H. Utech 1986-1 86 -405 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  SEINET4677981  Mimulus guttatus Unknown 1971-7-5 105 Humboldt Approx. 8 miles east of Petrolia.; 0 Comment
  UC1222801  Mimulus inodorus Joseph P. Tracy 1950-8-8 19283 Humboldt Croghan Hole Trinity Summit 1676 Comment
  HSC40029  Mimulus nanus var. nanus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2877 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  UC582711  Mimulus nasutus Joseph P. Tracy 1923-5-20 6218 Humboldt Kneeland Prairie 762 Comment
  UC26991  Mimulus nasutus C. C. Marshall 1888-1 Humboldt Comment
  HSC43204  Mimulus pilosus R. Sutherland 1976-8-13 26 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  UC582442  Mimulus pilosus Joseph P. Tracy 1925-11-1 7300 Humboldt Shively; on river bar 60 Comment
  HSC56180  Mimulus primuloides var. primuloides G. L. Clifton, Griswold 1979-8-1 12095 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC147905  Mimulus pulsiferae Joseph P. Tracy 1908-6 2698 Humboldt opposite Buck Mountain (along stream); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC44532  Mimulus tilingii Brad Klipfel 1973-7-1 141 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET6904196  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  CAS-BOT-BC432905  Mitella Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC11410  Mitella diversifolia J. Burtt Davy 1899-6-23 5753 Humboldt about half way to summit; North Coast Ranges, Trinity Summit Comment
  CAS-BOT-BC433068  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt Klamath Mountains, Trinity Summit. Near Corral Prairie. 1524 Comment
  UC492220  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC16011  Modiola caroliniana J. P. Tracy 1940-10-18 16777 Humboldt Trinidad 3 Comment
  CHSC63391  Moehringia macrophylla Vernon H. Oswald 1994-6-29 6361 Humboldt Titlow Hill Rd. (forest Rd.) 9.6 mi S of Hwy. 299, 4.5 mi S of 6N35, S of Willow Creek. 1572 Comment
  HSC57942  Monardella glauca G. L. Clifton, Griswold 1979-7-31 11612 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC32512  Monardella sheltonii Thomas W. Nelson 1973-9-3 1134 Humboldt McKeown Ranch N of Dinsmore Comment
  CAS-BOT-BC220517  Monardella villosa C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  LA62456  Monardella villosa Harlan Lewis; 1940-7-3 sn Humboldt 1 mi. N of Richardson Grove State Park Comment
  UCLA62435  Monardella villosa subsp. globosa C. Epling, Wm. Robison 1935-7-24 Humboldt Dyerville Comment
  UC416723  Monardella villosa subsp. villosa P. E. Goddard 1901-7 3 Humboldt Hupa Valley Comment
  CAS-BOT-BC453471  Monotropa hypopitys Doris K. Kildale 1926-6-6 2111 Humboldt Trail to Gold Bluffs Comment
  CAS-BOT-BC444804  Montia diffusa Harley P. Chandler 1901-5-1 1271 Humboldt North Coast Ranges. Redwood Belt 152 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
  SEINET3026082  Montia fontana Joseph P. Tracy 1904-4-3 200 Humboldt Eureka. 0 Comment
  UC162352  Montia fontana Joseph P. Tracy 1904-4-3 2004 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC673007  Montia howellii Joseph P. Tracy 1933-6-7 12526 Humboldt Bridgeville 198 Comment
  HSC90188  Morella californica Jean Hanson 1980-4-12 52 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  UC176040  Morella californica Joseph P. Tracy 1913-9-9 4394 Humboldt Northern Coast Ranges: Patrick's Point Comment
  OBI22021  Muhlenbergia filiformis Joseph P. Tracy 18-Sep-19 5233 Humboldt Trinity Summit 1829 Comment
  UC1103784  Muhlenbergia filiformis Joseph P. Tracy 1931-9-7 9656 Humboldt on sand bar along river Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC526746  Muhlenbergia filiformis Joseph P. Tracy 1933-7-25 12833 Humboldt moist gravelly flat North Coast Ranges, Grouse Mountain 1524 Comment
  HSC59659  Myosotis sylvatica Marla J. Carollo 1979-4-10 5 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  JEPS30071  Myrica californica Joseph P. Tracy 1930-5-18 8698 Humboldt Rohnerville Golf Course Northern Coast Ranges, Rohnerville Golf Course 152 Comment
  UC562532  Myriophyllum aquaticum Joseph P. Tracy 1933-7-20 12810 Humboldt Along Mad River, near Blue Lake. 15 Comment
  UCD150388  Myriophyllum aquaticum William Anderson 1958-12-24 s.n. Humboldt McKinleyville. 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
  HSC77925  Myriophyllum hippuroides Peter Steclel Nov 1977 Humboldt Growing in Prairie Lake Comment
  HSC15607  Narcissus pseudonarcissus D. B. Mitchell 1965-3-13 - 6 Humboldt 0.5 mi. N of US Coast Guard Station on Samoa Rd. Comment
  UC1173634  Narthecium californicum Joseph P. Tracy 1934-8-29 13629 Humboldt meadow at McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  UCD87900  Nassella lepida A. H. Murphy 1951-5-18 s.n. Humboldt 2.5 mi. northwest of Petrolia on rocky road cut along county road. Petrolia to Ferndale. Comment
  CAS-BOT-BC60346  Nasturtium officinale Doris K. Kildale 1927-6-25 3555 Humboldt Shelter Cove. Comment
  RSA43883  Navarretia atractyloides H. M. Pollard 1948-8-5 s.n. Humboldt Orleans Comment
  UC1198525  Navarretia atractyloides Joseph P. Tracy 1925-7-26 7207 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC57888  Navarretia capillaris Overton, Butler 1979-7-31 11442 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC97972  Navarretia divaricata subsp. divaricata Cara Witte 2007-6-21 322 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  UC582694  Navarretia intertexta Joseph P. Tracy 1937-6-26 15363 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1222720  Navarretia intertexta Joseph P. Tracy 1950-6-15 18773 Humboldt between Garberville and Harris (on the Robertson Ranch) Comment
  RSA67625  Navarretia mellita P. A. Munz 1951-7-15 16545 Humboldt Ca. 3 mi. N of Willow Creek 137 Comment
  HSC43175  Navarretia squarrosa R. Sutherland 1976-8-13 16 .13876 Humboldt Redwood Creek, Whittemore Grove. 87 Comment
  UCR143528  Navarretia tagetina J. P. Tracy 1950-6-23 18862 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint 213 Comment
  UC1103584  Navarretia viscidula Joseph P. Tracy 1923-6-18 6287 Humboldt Petrolia Northern Coast Ranges, Mattole Valley 30 Comment
  UC169028  Nemacladus capillaris Joseph P. Tracy Jul 21 1905-Aug 16 1905 2296 Humboldt Elk Mountain; Northern Coast Ranges 1219 Comment
  HSC13571  Nemophila heterophylla Francis Winter 1960-4-24 Humboldt 2 mi. W of Hoopa Indian reservation, Bair Rd., near Supply Creek 305 Comment
  CDA40359  Nemophila menziesii var. atomaria J. Breton and A. Livingston 2005-6-8 6 Humboldt Northwestern California; 1.7 mi. south of Highway 299 on Titlow Hill Rd. Comment
  UC146182  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UC673116  Nemophila parviflora Joseph P. Tracy 1940-7-7 16666 Humboldt Brouse Mt. Grouse Mt. (on banks) 1463 Comment
  UC562591  Nemophila pedunculata Joseph P. Tracy 1927-4-10 7890 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  HSC77938  Noccaea fendleri subsp. californica Jimerson, D. K. Imper 1982-5-17 1434 Humboldt Near Ashfield Ridge. 822 Comment
  HSC97450  Noccaea fendleri subsp. glauca Cara Witte 2007-6-7 216 Humboldt Clear Lake. At end of 6N01B. 3 miles south of Titlow Hill. 1533 Comment
  UC144129  Nuphar lutea subsp. polysepala Harley P. Chandler May 1901 1236 Humboldt Mad River near Vance's, Humboldt Bay, North Coast Ranges Mad River; North Coast Ranges, Humboldt Bay, Mad River Comment
  UC1198783  Oemleria cerasiformis Joseph P. Tracy 1920-2-29 5310 Humboldt Eureka Northern Coast Ranges (at Stephen Hill place) 60 Comment
  UCD127735  Oenanthe pimpinelloides Joseph P. Tracy 1950-8-18 19330 Humboldt along Blocksburg Road, near the bridge across Larrabee Creek. 457 Comment
  CDA38485  Oenanthe sarmentosa Tario 1932-9-21 s.n. Humboldt Arcata. 0 Comment
  HSC36315  Oenanthe sarmentosa Edward J. Grabek 1973-5-23 73523 .5 Humboldt Margin of N Clam Beach pond Comment
  UCD127756  Oenanthe sarmentosa Collector Unknown 1932-7-1 s.n. Humboldt California Seed Lab. Comment
  HSC16487  Oenothera glazioviana Wm. F. Bowman 1968-11-20 Humboldt At the jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  CHSC70156  Oenothera wolfii David K. Imper 1987-7-26 Humboldt 2 mi. south of Cape Mendocino, next to Hwy 1, south side of Point called or near to Devils Gate. Along road. 4 Comment
  HSC16688  Orobanche fasciculata F. B. Plett 1963-5-15 50 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  RSA402001A  Orthocarpus erianthus Hutchinson 1927-05 s.n. Humboldt [No location information provided.] Comment
  UC642235  Osmorhiza berteroi Joseph P. Tracy 1930-7-17 9018 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  JEPS14243  Osmorhiza occidentalis Joseph P. Tracy 1927-6-12 8157 Humboldt Horse Mountain; lower slopes 1219 Comment
  UC1103422  Oxalis albicans subsp. pilosa J. P. Tracy 1901-6-16 1149 Humboldt back of Bucksport 0 Comment
  JEPS43158  Oxalis corniculata Lincoln Constance 1934-5-29 719 Humboldt upper Look Prairie; South Fork of Eel River, Bull Creek Region 365 Comment
  HSC27853  Oxalis oregana Clifton Raymond Chesbrough 1973-6-19 59 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  SDSU604  Oxalis oregana D. F. Howe 1962-5-22 3309 Humboldt 3 miles east of Orick on Bald Mt. road. 396 Comment
  UC1197419  Oxalis oregana Joseph P. Tracy 1906-5-6 2440 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UCR123951  Oxalis oregana George K. Helmkamp, E. A. Helmkamp 2001-7-8 6976 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
  UC1103419  Oxalis oregana Joseph P. Tracy 1923-5-13 6199 Humboldt near Strong's Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  HSC16712  Oxalis pes-caprae Richard Steele 1962-3-20 12 Humboldt Arcata, on HSU campus 15 Comment
  HSC55191  Oxalis trilliifolia G. L. Clifton, Griswold 1979-8-2 12264 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SEINET3347162 Image available Oxalis trilliifolia A. A. Heller 13787 Humboldt Humbolt Camp, between Scotia and Pepperwood Comment
  HSC102561  Ozomelis trifida M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1548 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC418982  Packera bolanderi var. bolanderi H. E. and S. T. Parks May 1930 747 Humboldt near Blue Slide; Middle Van Duzen River Comment
  UC1103778  Panicum acuminatum var. acuminatum Joseph P. Tracy 1915-6-20 4651 1/2 Humboldt Ricks Prairie Eureka (Eureka); Northern Coast Region, Ricks Prairie 0 Comment
  UC187241  Panicum acuminatum var. acuminatum Joseph P. Tracy 1906-7-1 2517 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  UCD88695  Panicum acuminatum var. fasciculatum Joseph P. Tracy 1938-9-25 16172 Humboldt Bald mountain; at 'Lake Prairie'. 1066 Comment
  CAS-BOT-BC253707  Panicum capillare Doris K. Kildale 1925-9-7 1304 Humboldt Mouth of Dillon Creek on the Klamath River Comment
  SEINET200977 Image available Parapholis incurva Joeseph P. Tracy 1936-6-6 14860 Humboldt Eureka, CA 3 Comment
  CAS-BOT-BC253924  Parapholis incurva S. K. Harris; J. P. Tracy 1936-6-6 3218 Humboldt Near railroad station, Eureka Comment
  SDSU10856  Parentucellia viscosa D. F. Howe 1961-8-1 3112 Humboldt 9.0 miles N of Arcata. Comment
  SEINET10810981  Parentucellia viscosa J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13017 Humboldt North of McKinleyville on U.S. 101 (a few kilometers north of Eureka), on northbound off-ramp (southbound labelled as Route 101 Business) leading to Clam Beach County Park. Comment
  UC1103769  Paspalum dilatatum Fred M. Kay 1929-10-1 Humboldt near Blocksburg 457 Comment
  UC1199002  Paxistima myrsinites Joseph P. Tracy 1948-8-15 18132 Humboldt on Ridge 2 mi. e. Grove's Prairie (near Elk Camp, Trinity Summit); Trinity Summit 1554 Comment
  UC1239629  Pectocarya pusilla Joseph P. Tracy 1926-5-2 7428 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC902242  Pedicularis racemosa Joseph P. Tracy 1948-9-5 18170 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1326266  Pedicularis racemosa Milo S. Baker 1947-8-10 11904 Humboldt along trail to Trinity Summit from end of Forest Road from Hoopa 1432 Comment
  CHSC35535  Pellaea mucronata Thomas Nelson; James Nelson 1976-5-30 2612 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC95881  Pellaea mucronata var. mucronata Will Ferrand 2002-4-28 41 Humboldt About 0.5 mi. S of intersection of Hwy. 299 and South Fork Trinity exit 259 Comment
  HSC55332  Penstemon anguineus Terry Griswold, Marvin Butler 1979-7-12 7176 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  HSC55753  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-26 10285 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  JEPS26256  Penstemon anguineus Joseph P. Tracy 1919-9-18 5250 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1524 Comment
  SD61052  Penstemon anguineus Darley F. Howe 1964-8-7 3945 Humboldt 8.2 mi. from #96 on Mill Creek Road. Hoopa Valley 1067 Comment
  JEPS27375  Penstemon anguineus H. W. Grinnell 1932-7-19 33 Humboldt McKay Camp South Fork Mt. 1676 Comment
  SD77341  Penstemon anguineus F. W. Pennell, J. P Tracy 1940-7-7 26092 Humboldt Grouse Mountain, w. of Salyer, gravelly bank 1372 Comment
  UCD124036  Penstemon anguineus Thomas Nelson; Jane Nelson 1976-7-1 2907 Humboldt east side of Red Lassic, beside Road 1S07. 1676 Comment
  SD42331  Penstemon azureus Carl B. Wolf 1937-8-13 9220 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  HSC74601  Penstemon newberryi Gail Newton 1980-7-22 1682 Humboldt Near Devils Backbone 231 Comment
  HSC55750  Penstemon newberryi subsp. berryi G. L. Clifton, Terry Griswold 1979-7-26 10282 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC76252  Penstemon parvulus Denis Kearns 1981-7-6 73 Humboldt Near Mosquito Lake 1256 Comment
  UC902219  Penstemon parvulus Joseph P. Tracy 1942-6-23 17223 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC39394  Penstemon purpusii D. E. Anderson, J. P. Smith 1971-7-6 - 1279 Humboldt Horse Mtn. Comment
  NY641283  Penstemon rattanii J. P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762.0 Comment
  CAS-BOT-BC71615  Pentagramma triangularis subsp. triangularis Henry M. Pollard 1946-9-7 s.n. Humboldt Woodson Mine, Orleans Mt. Comment
  UC1197323  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1941-8-12 17051 Humboldt 2 mi s Fields Landing 6 Comment
  HSC98906  Perideridia kelloggii Cara Witte 2008-8-16 1029 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1579 Comment
  CAS-BOT-BC413505  Persicaria amphibia H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  HSC65662  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC673279  Phacelia bolanderi Lincoln Constance and Reed C. Rollins 1942-5-20 2999 Humboldt Dyerville Bridge Klamath-Siskiyou region, Eeel River (2 mi n of Weott) 48 Comment
  JEPS47303  Phacelia californica L. R. Heckard and R. Bacigalupi 1964-7-28 1428 Humboldt about 1 mi e ocean (where Petrolia-Ferndale first reaches the beach) Comment
  UC176055  Phacelia egena Joseph P. Tracy 1913-6-25 4337 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC96239  Phacelia heterophylla subsp. virgata Sara March, Gillian Levy 2005-6-8 1 Humboldt 1.7 mi. south of Hwy. 299 on Titlow Hill Rd. 980 Comment
  UC1222898  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1950-6-15 18802 Humboldt 7 mi Harris; Mail Ridge Comment
  HSC58339  Phacelia mutabilis Overton, Butler 1979-8-2 12654 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC98826  Phacelia mutabilis Cara Witte 2008-7-16 915 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC906636  Phacelia mutabilis Joseph P. Tracy 1947-7-9 17832 Humboldt lower slopes Horse Mountain 1219 Comment
  UC1199109  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3624 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC162721  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1911-7-5 3317 Humboldt Willow Creek (tributary of Trinity River) Northern Coast Ranges (near its mouth) 304 Comment
  UC175504  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1912-6-9 3666 Humboldt Alton Northern Coast Region 30 Comment
  HSC75489  Phacelia procera J. O. Sawyer 1980-7-18 3630 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UCD88167  Phalaris aquatica J. W. Logan 1926-6-2 s.n. Humboldt Ferndale. Rusk Ranch. Plot near house. Comment
  UC1103764  Phalaris californica Joseph P. Tracy 1934-8-6 13562 Humboldt n side of Mad River near bridge on Trinity Highway 5 mi ne Arcata; North Coast Ranges, n side of Mad River 30 Comment
  UCD88769  Phalaris californica Joseph P. Tracy 1951-7-27 19630 Humboldt At Englewood, near Redcrest. Comment
  HSC56132  Philadelphus californicus G. L. Clifton, Griswold 1979-8-1 11949 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC76560  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt Summit of U.S. Highway 299 betw. Willow Creek and Blue Lake. Comment
  UC154152  Philadelphus lewisii Mrs. M. H. Manning 1900-1 Humboldt Hupa Comment
  RSA0057780  Philadelphus lewisii Jane Turner, Francis M. Ball 1962-7-10 1145 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  UC1103789  Phleum alpinum Joseph P. Tracy 1919-9-24 5293 1/2 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1889 Comment
  UC187278  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt Eureka; Northern Coast Region 0 Comment
  UC188863  Phleum alpinum Joseph Burtt Davy 1899-7-30 6198 Humboldt Russ Ranch Comment
  RSA10146  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  RSA53767  Phleum pratense Henry M. Pollard 1945-8-31 s.n. Humboldt Orleans to Somes Bar, east side of Klamath River. Comment
  RSA728071  Phleum pratense Gary D. Wallace 1979-6-24 1865 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  UC187279  Phleum pratense Joseph P. Tracy July, 1908 2892 Humboldt ridge between Van Duzen and Mad Rivers (near Low Gap, Humboldt and Trinity Counties); Northern Coast Ranges, between Van Duzen and Mad Rivers 914 Comment
  UC1347189  Phlox adsurgens Alice Eastwood and John Thomas Howell 1937-6-24 4869 Humboldt 5 mi e Berry; Summit Comment
  UC572265  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 mi ne Bald Mountain; China Flat Quad. Comment
  UC1212579  Phlox adsurgens Francia Chisaki and Helen Sharsmith 1959-8-22 4755 Humboldt Happy Camp, just over line from Trinity County Inner North Coast Ranges 914 Comment
  HSC44424  Phlox diffusa Brad Klipfel 1975-5-30 651 Humboldt Horse Mtn. Comment
  UC1178963  Phlox douglasii subsp. rigida Joseph P. Tracy 1927-6-12 8126 Humboldt Horse Mountain 1432 Comment
  UC1198561  Phlox gracilis Joseph P. Tracy 1908-6-9 2666 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA174016  Phyllospadix scouleri Robert F. Thorne 1957-9-3 19016 Humboldt Abalone Point, Patrick s Point State Park. Comment
  HSC95902  Picea sitchensis Will Ferrand 2002-4-28 40 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  NY34411  Picea sitchensis E. K. Balls 1953-10-11 18631 Humboldt 23.4 miles north of Petrolia on Old Coast Road, toward Ferndale 365.8 Comment
  HSC1482  Pinus contorta S. J. Hawks 1965-3-12 5 Humboldt 0.25 mi. W of Fairhaven Comment
  RSA46681  Pinus contorta var. contorta Doris K. Kildale 1937-8-12 15084 B Humboldt South Fork Mountain. Comment
Read comments
Jun 21 2012
  HSC31984  Pinus jeffreyi Steve Selva, Roger Jensen 1974-8-19 25 Humboldt Horse Mtn. Ski Area Comment
  UC902029  Pinus jeffreyi Joseph P. Tracy 1949-7-19 18387 Humboldt Grouse Mountain 1524 Comment
  RSA46880  Pinus lambertiana Doris K. Kildale 1926-9-5 2611 Humboldt Lassecks Peaks. 1570 Comment
  RSA275331  Pinus monticola Robert M. Specht 1977-11-20 1190 Humboldt Near Hwy. 101, flats along Gerogia Pacific s A-line. 122 Comment
  CAS-BOT-BC78982  Pinus muricata Doris K. Kildale 1927-3-19 2941 Humboldt Luffenholtz Creek near Trinidad Comment
  HSC37260  Pinus muricata Gary S. Lester 1976-1-3 580 Humboldt Seaward slope of Trinidad Head 91 Comment
  CAS-BOT-BC79027  Pinus ponderosa Doris K. Kildale 1928-7-1 5314 Humboldt Klamath River at Orleans Comment
  HSC71802  Pinus sabiniana M. A. Baker 1980-6-26 2380 Humboldt Near Sims Creek 610 Comment
  UC1196431  Piperia elegans Joseph P. Tracy 1925-6-7 7072 Humboldt Willow Creek Canyon Northern Coast Ranges 304 Comment
  JEPS79898  Piperia unalascensis Joseph P. Tracy 1932-7-12 10453 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC13529  Piperia unalascensis Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC48720  Pityopus californicus T. Mainwaring 1978-6-2 Humboldt Horse Mountain Area. Bulk Collection 175 Comment
  POM174072  Plagiobothrys bracteatus Joseph P. Tracy 1918-7-5 5010 Humboldt White Thorn Valley. 305 Comment
  HSC3765  Plagiobothrys nothofulvus Doris K. Kildale 1926-5-2 1891 Humboldt Willow Creek Rd., Horse Mtn. Divide Comment
  UC1239612  Plagiobothrys reticulatus Joseph P. Tracy 1935-5-25 13884 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  UC552836  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-8 13949 Humboldt along coast in front of s end Stone Lagoon; Dry Lagoon, Stone Lagoon 3 Comment
  UC180174 Image available Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-14 4469 Humboldt Fort Seward Northern Coast Ranges; Fort Seward, Humboldt Co. 121 Comment
  SEINET12275870  Plagiobothrys scouleri J. P. Tracy 1950-1 18724 Humboldt Bear River Ridge Comment
  UC1222206  Plagiobothrys scouleri Joseph P. Tracy 1946-5-30 17538 Humboldt 2 mi so Bridgeville 457 Comment
  HSC77348  Plantago elongata L. P. Janeway 1983-5-1 257 Humboldt W of Samoa Rd. and N of Coast Guard lands 6 Comment
  HSC16824  Plantago erecta R. T. Forester 1963-4-30 14 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  HSC37922  Plantago erecta Peter Sorenson 1976-6-14 Humboldt N Spit Comment
  UC1196141  Plantago erecta Joseph P. Tracy 1921-4-24 5471 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC1196143  Plantago erecta Joseph P. Tracy 1919-4-27 5133 Humboldt opposite Eureka (Ocean Beach at Samoa); Humboldt Bay, Samoa, Ocean Beach Comment
  UCD124428  Plantago erecta D. E. Breedlove 1962-6-7 3046 Humboldt 1.5 miles south of Samoa on peninsula on west side of Humboldt Bay. 106 Comment
  HSC79455  Plantago lanceolata Kenneth Clark 1980-4-18 603 Humboldt Above Dead Man's Gulch near parking access 137 Comment
  RSA246721  Plantago major Robert F. Thorne, Percy C. Everett 1965-8-8 35233 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  RSA246748  Plantago maritima Robert F. Thorne, Percy C. Everett 1965-8-8 35276 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC97555  Platanthera dilatata var. leucostachys Cara Witte 2007-6-1 174 Humboldt Along Forest Service 5N10. 1.5 miles east of intersection with National Forest 1. 1365 Comment
  CAS-BOT-BC91638  Platystemon californicus J. Ed. McClellan; Bonnie McClellan 1972-6-1 s.n. Humboldt Samoa. Comment
  UC229824  Platystemon californicus Joseph P. Tracy 1922-5-29 6071 Humboldt head of South Yager Creek; Northern Coast Ranges, head of South Yager Creek 762 Comment
  UC169026  Plectritis brachystemon J. P. Tracy 1908-7-9 2833 Humboldt Buck Mountain 1219 Comment
  UC999830  Plectritis brachystemon S. C. Dyal 1938-6-10 739 Humboldt near Capetown Comment
  HSC59486  Plectritis congesta M. A. Ericksen 1979-4-29 239 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  UC1239582  Plectritis congesta Joseph P. Tracy 1914-6-14 4504 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  HSC96284  Plectritis congesta subsp. congesta J. Breton, A. Livingston 2005-6-8 5 Humboldt 2.0 mi. S of Hwy. 299 on Titlow Rd. 1032 Comment
  UC1103801  Pleuropogon refractus Joseph P. Tracy 1911-6-4 3234 Humboldt along Little River, 5 mi from the coast Little River; Northern Coast Region, Little River 121 Comment
  UC249503  Pleuropogon refractus Joseph P. Tracy 1922-6-18 6095 Humboldt head of Middle Yager Creek; Northern Coast Ranges, Middle Yager Creek 762 Comment
  CAS-BOT-BC255029  Poa compressa Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  BLMAR436  Poa confinis Jennifer Anthony-Wheeler 2008-6-18 436 Humboldt Samoa/Malel Dunes 9 Comment
  CAS-BOT-BC255118  Poa confinis Joseph P. Tracy 1927-6-26 8209 Humboldt Stone Lagoon 6 Comment
  RSA183609  Poa confinis R. I. Bonn 1965-5-7 27 Humboldt Four miles west of Arcata on Lamphere Rd. Comment
  SEINET200582 Image available Poa confinis Joseph P. Tracy 1910-4-24 3123 Humboldt Sand dunes of Ocean Beach at Humboldt. Comment
  CHSC10126  Poa douglasii J. W. Johnson 1961-8-17 1028 Humboldt On a dune, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC10696  Poa douglasii J. W. Johnson 1961-8-17 1028 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC10703  Poa douglasii L. H. Myers 1963-5-13 20 Humboldt Dunes W of Lanpheres Rd., Mad River Slough area. Comment
  UC205645  Poa douglasii Joseph P. Tracy 1917-5-30 4804 Humboldt sand dunes of Ocean Beach at Little River Comment
  UC573883  Poa douglasii H. S. Yates 1936-6-16 5650 Humboldt 1/2 mi sw Samoa; Eureka Quadrangle 6 Comment
  UC1103794  Poa howellii Joseph P. Tracy 1918-5-1 4905 Humboldt Kneeland Prairie, McBride Rd Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCSC000061  Poa howellii H. S. Yates 1936-6-17 5709 Humboldt Lower NW slope of Buck Mtn. - South Fork Pk. 792 Comment
  SEINET13390783 Image available Poa pratensis A. G. Vestal 1937-6-22 s.n. Humboldt Comment
  HSC102232  Poa pratensis subsp. pratensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1153 Humboldt Patterson Meadows 1566 Comment
  JEPS72922  Poa pratensis subsp. pratensis Lincoln Constance 1934-6-19 918 a Humboldt near summit Grasshopper Peak (S Fork Eel River); Bull Creek Region 914 Comment
  UC184172  Poa pratensis subsp. pratensis Joseph P. Tracy 1905-6-4 2186 Humboldt Eureka; Northern Coast Region 0 Comment
  RSA63625  Poa secunda Milo S. Baker s.n. Humboldt Near Yager Comment
  HSC10807  Poa trivialis R. D. Zortman 1963-5-15 45 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  UC1103182  Poa unilateralis Joseph P. Tracy 1904-5-1 2050 Humboldt bluff near Bucksfort; Northern Coast Ranges, Humboldt Bay 0 Comment
  UC1988935  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta 5 miles east of town, open flat by old Strong's District School House 45 Comment
  UC604642  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta, open flat by old Strong's District School House, 5 miles east of town 45 Comment
  CAS-BOT-BC232886  Polemonium carneum Carl B. Wolf 1937-6-17 8881 Humboldt Big Lagoon, S side at W of Redwood Highway 6 Comment
  HSC67530  Polygala cornuta J. P. Smith, Steve Selva 1970-6-14 3841 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC38370  Polygonum aviculare Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  HSC64421  Polygonum aviculare J. P. Smith 1971-10-9 5048 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC17487  Polygonum californicum D. E. Anderson 1961-9-3 1776 Humboldt Comment
  UC672962  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1933-8-30 13042 B Humboldt Grouse Mountain 1524 Comment
  BLMAR58  Polygonum paronychia Jennifer Anthony-Wheeler 1994-3-1 58 Humboldt Samoa/manilla dunes, growing throughout the coastal dunes 12 Comment
  BLMAR720  Polygonum paronychia Jennifer Wheeler 2011-5-20 720 Humboldt King range, Below Strawberry Rock along Mattole dunes 7 Comment
  CAS-BOT-BC109186  Polygonum paronychia Ira L. Wiggins 1930-7-11 4685 Humboldt Near Samoa. Comment
  CHSC23310  Polygonum paronychia Robert F. Thorne; P. Everett 1965-8-5 35163 Humboldt Samoa Dunes. 3 Comment
  HSC17512  Polygonum paronychia J. W. Johnson 1961-8-17 1041 Humboldt Dune fields of W.M. Lanphere Farm, Samoa Peninsula Comment
  POM232027  Polygonum paronychia I. L. Wiggins 1930-7-11 4685 Humboldt Near Samoa Comment
  RSA89770  Polygonum paronychia P. A. Munz 1954-7-25 19872 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  UC672942  Polygonum parryi Joseph P. Tracy 1930-7-6 8855 Humboldt Valley of South Yager Creek 762 Comment
  UC1198083  Polygonum persicaria Joseph P. Tracy 1919-9-14 5203 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC98684  Polygonum sawatchense subsp. sawatchense Cara Witte 2007-6-20 312 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  HSC99028  Polygonum spergulariiforme Cara Witte 2008-7-14 895 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1380 Comment
  SEINET3404068 Image available Polygonum spergulariiforme Joseph P. Tracy 1921-10-2 5966 Humboldt Kneeland Prairie Comment
  HSC45868  Polypodium glycyrrhiza J. P. Smith 1971-10-6 4984 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC39970  Polypodium glycyrrhiza Kurt Hippen, Tom Duebendorfer Humboldt Off Dowes Prairie Rd. 0.25 mi. up Strawberry Cr. Comment
  SDSU3597  Polypodium glycyrrhiza H. E. Parks 1924-6-1 2837 Humboldt Lawrence Creek, on trees. Comment
  SEINET200789 Image available Polypodium glycyrrhiza Joseph P. Tracy 1931-3-26 9294 Humboldt Blue Slide, on Van Duzen River Comment
  HSC89486  Polypodium scouleri P. A. Daly 1986-3-12 68 Humboldt Trinidad Head, along trail 61 Comment
  RSA689963  Polypodium scouleri May N. Ackley 1936-8-15 375 Humboldt Patrick s Point Comment
  UC370621  Polypodium scouleri H. E. Parks June 1925 3232 Humboldt Orick Comment
  HSC1140  Polypodium scouleri J. W. Johnson 1962-3-9 1180 Humboldt On a bank above the Hunt Lane between the gate and barn Comment
  UC1145081  Polypogon interruptus Joseph P. Tracy 1940-10-5 16748 Humboldt Trinidad 6 Comment
  UC526771  Polypogon interruptus Joseph P. Tracy 1927-7-16 8260 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC233212  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake 15 Comment
  UC526768  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt along Mad River near Blue Lake; along Mad River, near Blue Lake 15 Comment
  UC526769  Polypogon maritimus Joseph P. Tracy 1930-10-19 9236 Humboldt Eel River on gravel bars Alton to Fortuna; Eel River 15 Comment
  UC1103192  Polypogon monspeliensis Joseph P. Tracy 1930-10-12 9206 Humboldt Eel River on gravel bars Alton to Fortuna; Eel River 15 Comment
  CAS-BOT-BC72117  Polystichum californicum Joseph P. Tracy 1933-10-15 13101 Humboldt Miranda, along S. Fork Eel River 91 Comment
  HSC73875  Polystichum imbricans M. Baker 1980-7-15 2952 Humboldt Near Whiting Ridge 1341 Comment
  HSC98978  Polystichum imbricans subsp. imbricans Cara Witte 2007-5-23 96 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 0.5 mi. south of intersection with 5N04 and 4N32E. 1402 Comment
  CAS-BOT-BC76663  Polystichum munitum Doris K. Kildale 1928-12-30 6764 Humboldt Phillipsville Comment
  CAS-BOT-BC76664  Polystichum munitum Doris K. Kildale 1926-7-22 2414 Humboldt Metropolitan, woods near Canyon Park. Comment
  HSC1154  Polystichum munitum R. I. Bonn 1965-5-9 40 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  RSA171967  Populus trichocarpa Robert F. Thorne 1957-9-2 18990 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC1196668  Populus trichocarpa E. Ethel Tracy 1918-4-20 Humboldt Scotia Northern Coast Ranges, on Eel River (on Eel River) 30 Comment
  UC492231  Populus trichocarpa Joseph P. Tracy 1932-4-24 9800 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC672877  Potamogeton pectinatus Joseph P. Tracy 1933-8-22 12983 Humboldt 1 mi w of Loleta (Mouth of Eel River); Eel River 3 Comment
  CAS-BOT-BC454066  Potamogeton pusillus subsp. pusillus S. K. Harris 1938-9-12 s.n. Humboldt Backwater of Eel River, near Fernbridge Comment
  HSC102525  Potentilla drummondii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1512 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  CAS-BOT-BC158495  Potentilla gracilis var. gracilis Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC74648  Prosartes hookeri M. A. Baker 1980-5-17 1211 Humboldt Near Le Perron Peak 792 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
  HSC15478  Prosartes smithii H. E. Parks, S. T. Parks 1952-5 24452 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC15479  Prosartes smithii S. R. Johnson 1965-3-28 22 Humboldt 1.0 mi. N of Luffenholtz Beach Comment
  HSC59658  Prosartes smithii Marla J. Carollo 1979-4-10 4 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  HSC14307  Prunella vulgaris David Adams 1960-7-15 Humboldt Near Azalea Reserve State Park 30 Comment
  SBBG71579  Prunella vulgaris R. Hartwell 1938-8-6 Humboldt S of Eureka Comment
  SD93030  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 226 Humboldt Highway 101 near Dyerville. 60 Comment
  CAS-BOT-BC159981  Prunus emarginata Joseph P. Tracy 1933-6-13 12571 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  CAS-BOT-BC159984  Prunus emarginata Doris Kildale Gillespie 1931-6-7 10593 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC74178  Prunus emarginata M. A. Baker 1980-7-23 3185 Humboldt Near Orleans Mtn. 1859 Comment
  UC666845  Prunus emarginata Joseph P. Tracy 1934-9-5 13656 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC357607  Pseudognaphalium stramineum Joseph P. Tracy 1937-8-3 15614 Humboldt Along Mad River, near Blue Lake 15 Comment
  UC582511  Pseudognaphalium stramineum Joseph P. Tracy 1937-6-26 15364 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC5705  Pseudognaphalium stramineum W. D. Stevens 1967-7-22 60 Humboldt Above the dirt road from old Hwy. 101 to the top of the N bank of the Mad River Comment
  UC31991  Pseudognaphalium stramineum C. C. Marshall 1888-1 Humboldt Comment
  JEPS20470  Pseudognaphalium thermale Joseph P. Tracy 1939-8-16 16424 Humboldt Friday Ridge Grouse Mountain, Friday Ridge 1219 Comment
  HSC98638  Pseudotsuga menziesii Cara Witte 2008-7-11 884 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  HSC70640  Pseudotsuga menziesii var. menziesii R. York 1980-5-18 593 Humboldt Near Black Mtn. 792 Comment
  UC1198276  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1922-10-22 6132 Humboldt between High Prairie and Snow Camp; Bald Mountain 1066 Comment
  UC902028  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1949-10-8 18584 Humboldt Trinity River Valley at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC198649  Psilocarphus tenellus Joseph P. Tracy 1917-5-27 4783 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC582502  Psilocarphus tenellus Joseph P. Tracy 1937-6-20 15339 Humboldt 10.0 mi up stream mouth of Bear River; Bear River 152 Comment
  UC1222913  Psilocarphus tenellus Joseph P. Tracy 1946-6-23 17597 Humboldt se end Kneeland Prairie (near the old Dan McBride place) 762 Comment
  UC1223169  Psilocarphus tenellus Joseph P. Tracy 1950-6-8 18725 Humboldt 7 mi s Ferndale (near Mountain Glen Ranch); Summit of Bear River Ridge 609 Comment
  RSA167319  Psilocarphus tenellus var. tenellus Joseph P. Tracy 1942-7-26 17293 Humboldt Valley of South Yager Creek, at an old millsite one mile north of Redwood House. 610 Comment
  HSC79440  Pteridium aquilinum var. pubescens Kenneth Clark 1980-6-14 675 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  CAS-BOT-BC460596  Pyrola aphylla Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC462869  Pyrola asarifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  JEPS66565  Pyrola crypta Joseph P. Tracy Jul 16-19 1930 9033 Humboldt South Fork Mountain; in fir forest near McKay Camp 1676 Comment
  CAS-BOT-BC462806  Pyrola dentata Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  HSC55231  Pyrola picta G. L. Clifton, Griswold 1979-8-2 12432 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1197578  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit near Corral Prairie; Trinity Summit 1584 Comment
  SEINET200715  Pyrola picta Joseeph P. Tracy 1926-6-6 7556 Humboldt Near summit on road west from Hoopa to Bair's Comment
  UC1197569  Pyrola picta Joseph P. Tracy 1913-7-20 4369 Humboldt willow Creek Road neat Tree Creeks. 1066 Comment
  UC1197584  Pyrola picta Joseph P. Tracy 1949-7-19 18377 Humboldt Grouse Mountain, at Friday Camp Grouse Mountain; , Friday Camp 1219 Comment
  UC32670  Pyrola picta Chesnut and Drew 1888-7-12 Humboldt Jarnigan's Comment
  HSC99029  Quercus chrysolepis Cara Witte 2008-7-14 891 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. At end of the road. 1407 Comment
  UC478893  Quercus chrysolepis Marcus E. Jones, A. M. 1931-7-16 28845 Humboldt near Trinity River (Burnt Ranch) Comment
  JEPS37943  Quercus garryana W. L. Jepson Jul 16 1902-Jul 23 1902 2060 Humboldt trail to Devil's Backbone Trinity Summit 2133 Comment
  UC502986  Quercus garryana Joseph P. Tracy 1928-9-30 8514 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC54712  Quercus garryana P. E. Goddard 1901-7-12 68 Humboldt Hupa Comment
  HSC102091  Quercus garryana var. breweri M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 994 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  OBI36667  Quercus kelloggii David J. Keil 1983-7-2 17342 Humboldt 2.8 mi S of SR 299 along titlow HIll rd, SW of Willow Creek Comment
  HSC32221  Quercus vacciniifolia J. O. Sawyer 1970-6-24 2219 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC41271  Quercus vacciniifolia Brad Klipfel 1974-6-25 417 Humboldt Horse Mtn. Comment
  CAS-BOT-BC104534  Quercus vacciniifolia N. Wynne; M. Peckham; J. Bamesberger 1994-5-6 43 Humboldt on W side of SRF Rd. 6N36, one mile N of intersection with Titlow Rd. Comment
  UC668067  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1935-5-25 13882 Humboldt Dobbyn Creek; bed of dried-up pond 152 Comment
  BLMAR364  Ranunculus californicus Jennifer Anthony-Wheeler 2003-5-21 364 Humboldt South Spit, Disturbed ground on west side 3 Comment
  CAS-BOT-BC378852  Ranunculus californicus var. californicus Doris K. Kildale 1926-3-20 1549 Humboldt Near mouth of Little River Comment
  RSA273369  Ranunculus flammula J. O. Sawyer 1977-4-25 3043 Humboldt Along N side of Buttermilk lane Sunnybrae. Across the street from 1425 Buttermilk Lane Comment
  RSA246723  Ranunculus flammula var. ovalis Robert F. Thorne 1965-8-9 35322 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC1196212  Ranunculus occidentalis J. P. Tracy 1901-5-5 1066 Humboldt Immediate vicinity of Eureka 0 Comment
  UC183728  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3604 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC26651  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson 1971-5-29 449 Humboldt Beside Snow Camp Rd. Comment
  UCD97071  Ranunculus parviflorus John Thomas Howell 1954-4-25 29153 Humboldt Arcata. Comment
  UC1196260  Ranunculus pusillus Joseph P. Tracy 1935-5-25 13845 Humboldt Fort Seward 106 Comment
  HSC55698  Ranunculus uncinatus Overton, Butler 1979-7-26 10022 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC12337  Raphanus sativus Steve Dorei 1970-10-26 115 Humboldt Arcata, South G st. Comment
  UC61100  Rhamnus californica subsp. californica J. Burtt Davy 1899-6-21 5732 Humboldt Supply Creek Hoopa Valley Comment
  CAS-BOT-BC55966  Rhamnus ilicifolia L. R. Abrams 1927-9-11 12141 Humboldt Fork Klamath and Shasta Rivers Comment
  HSC31567  Rhododendron macrophyllum Glenn McGourty 1974-5-11 37 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  UC614839  Rhododendron macrophyllum Beryl O. Schreiber 1934-6-5 1136 Humboldt 20 mi e of Blue Lake (road to Redding) Comment
  CHSC19505  Rhododendron neoglandulosum Norman Dennis 1965-6-3 143 Humboldt Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  UC1197789  Rhododendron occidentale J. P. Tracy 1901-6-23 1165 Humboldt immediate vicinity of Eurek 0 Comment
  HSC76366  Rhododendron occidentale var. paludosum Teresa Prendusi 1981-7-23 346 Humboldt Near Black Mtn. 890 Comment
  HSC7892  Rhododendron occidentale var. paludosum Francis Winter 1960-5-6 Humboldt Across from Azalea State Park Entrance Comment
  HSC96473  Rhododendron occidentale var. paludosum Gordon Leppig 1997-6-19 456 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  RSA46883  Rhododendron occidentale var. paludosum Doris K. Kildale 1926-1-3 1485 Humboldt Big Lagoon. Comment
  UC1198922  Ribes binominatum Joseph P. Tracy 1949-7-19 18385 Humboldt Grouse Mountain 1524 Comment
  HSC103240  Ribes bracteosum Jade Paget-Seekins 2010-4-18 10 Humboldt Near the bottom of Bald Hills Road, on the edge of the parking lot for Redwood Creek trailhead. 19 Comment
  HSC37423  Ribes bracteosum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 513 Humboldt Along Lost Man Creek. 38 Comment
  RSA183639  Ribes bracteosum D. E. Anderson 1965-5-8 3632 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  RSA0025005  Ribes divaricatum var. pubiflorum L. R. Abrams 1922-6-25 8248 Humboldt Near South Bay. Comment
  HSC103234  Ribes lacustre Jade Paget-Seekins 2010-6-26 29 Humboldt On Long Ridge Road, up Big Hill Road outside of Hoopa. 1274 Comment
  HSC58055  Ribes lacustre G. L. Clifton, Griswold 1979-8-1 11921 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC99361  Ribes lacustre K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 10 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS49357  Ribes lacustre W. L. Jepson 1902-7-15 2030 Humboldt Mud Spring to Trinity Summit 1524 Comment
  JEPS49366  Ribes lacustre P. E. Goddard 1901-7 125 Humboldt Trinity Summit Trail Comment
  HSC57895  Ribes marshallii Overton, Butler 1979-7-31 11472 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  JEPS49228  Ribes menziesii Jos. P. Tracy 1918-4-7 4866 Humboldt Luffenholz Creek 30 Comment
  UC902108  Ribes menziesii Joseph P. Tracy 1948-3-6 17953 Humboldt Trinidad 60 Comment
  RSA0024586  Ribes roezlii var. cruentum Robert F. Thorne, P. C. Everett 1965-8-5 35142 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  HSC20340  Ribes sanguineum S. J. Hawks 1965-5-6 19 Humboldt Clam Beach County Park Comment
  HSC20343  Ribes sanguineum D. E. Anderson 1962-2-10 1913 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  HSC39630  Ribes sanguineum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2736 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  HSC41269  Ribes sanguineum Brad Klipfel 1974-6-25 411 Humboldt Horse Mtn. Comment
  UC1198914  Ribes sanguineum Joseph P. Tracy 1935-7-22 14125 Humboldt Forks of Tish-Tang-a-Tang Creek Trinity Summit 1371 Comment
  UC1280968  Ribes sanguineum H. E. McMinn 1934-6-22 3713 Humboldt n Eureka; Sea Cliff Comment
  CAS-BOT-BC211979  Ribes sanguineum Joseph P. Tracy 1942-6-23 17238 Humboldt Near Box Camp, Trinity Summit 1524 Comment
  HSC22045  Ribes sanguineum var. glutinosum B. D. Rogers, D. E. Anderson 1965-4-1 411 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  HSC34637  Ribes sanguineum var. glutinosum Robert M. Specht 1975-4-9 121 Humboldt 2.5 mi. N of Trinidad on Patricks Point Dr., W side 61 Comment
  HSC39950  Ribes sanguineum var. glutinosum Linda M. Barker 1976-3-22 1334 Humboldt 3 mi. W of Arcata Comment
  RSA0018241  Ribes sanguineum var. glutinosum Lincoln Constance, R. C. Rollins 1942-5-11 2866 Humboldt Near summit 8 miles east of Blue Lake. Comment
  HSC99358  Ribes sanguineum var. sanguineum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 7 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC173991  Ribes viscosissimum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC173994  Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt Ridges East of Corral Prairie 1828 Comment
  UC667028 Image available Ribes viscosissimum Joseph P. Tracy 1933-7-16 12788 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC195067  Rigiopappus leptocladus Joseph P. Tracy 1916-6-19 4738 Humboldt near Alder Point; Northern Coast Ranges, Cahto Creek 152 Comment
  CAS-BOT-BC146492  Rosa gymnocarpa L. B. Kildale 1930-9-9 10402 Humboldt Bald Mountain 914 Comment
  HSC99447  Rosa gymnocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 97 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET200818  Rosa gymnocarpa Joseph P. Tracy 1939-8-16 16404 Humboldt Horse Mountain , In open forest of Jeffrey Pine, on red soil in serpintine belt. 1433 Comment
  UC1222307  Rosa gymnocarpa Joseph P. Tracy 1950-8-4 19267 Humboldt ne Lookout (at head of creek); Bull Creek State Park, Grasshopper Peak, Canoe Creek Comment
  UC902159  Rosa gymnocarpa Joseph P. Tracy 1949-8-7 18437 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC19614  Rosa nutkana D. J. Jager 1965-5-12 69 Humboldt 0.5 mi. N of Trinidad on bluff above College Cove 46 Comment
  RSA2870  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  UC902161  Rosa nutkana var. nutkana Joseph P. Tracy 1942-9-20 17320 Humboldt 2 mi s of town Field's Landing 6 Comment
  UC154494  Rosa pisocarpa Harley P. Chandler June 1901 1544 Humboldt Klamath River North Coast Ranges 457 Comment
  UC902158  Rosa pisocarpa Joseph P. Tracy 1947-7-4 17813 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC146880  Rosa rubiginosa C. B. Wolf 1931-8-28 2363 Humboldt 1/8 mile from Rohnerville on road to Fortuna 30 Comment
  CAS-BOT-BC146885  Rosa rubiginosa Carl B. Wolf 1927-8-30 1229 Humboldt 2 mi. s. of Petrolia on Matole River near point where road crosses river Comment
  RSA89565  Rubus discolor Philip A. Munz 1954-7-23 19864 Humboldt 5 miles SE of Carlotta Comment
  UCD89725  Rubus fruticosus Lindsay Clark 2008-6-23 KRC 1 Humboldt Nadelos Campground in King Range Conservation Area, 3.8 miles SE of Shelter Cove. 551 Comment
  JEPS44732  Rubus lasiococcus Joseph P. Tracy 1932-7-16 10640 Humboldt in fir woods near Corral Prairie; Klamath Mountains, Trinity Summit, nr Corral Prairie 1524 Comment
  HSC40017  Rubus leucodermis Thomas W. Nelson, Jane P. Nelson 1976-7-1 2920 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC57010  Rubus leucodermis Overton, Butler 1979-7-24 9603 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 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
  CAS-BOT-BC147239  Rubus parviflorus Joseph P. Tracy 1932-7-15 10576 Humboldt Near Corral Prairie 1524 Comment
  CAS-BOT-BC147249  Rubus parviflorus Ella Dales Cantelow 1936-5-18 1403 Humboldt 5 mi. N. of Orick Comment
  HSC19660  Rubus parviflorus D. B. Bader 1963-2-17 11 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  HSC19663  Rubus parviflorus A. E. Inman 1962-5-25 Humboldt Mad River, S bank; 100 yards west of Hwy. 299 bridge Comment
  HSC73171  Rubus parviflorus M. A. Baker 1980-5-18 1346 Humboldt Near Black Mtn. 792 Comment
  OBI35883  Rubus parviflorus David J. Keil 1983-7-1 17292 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  UC1536908  Rubus parviflorus Gordon H. True Jr. 1936-5-12 473 Humboldt 5 mi s Kneeland; s of Kneeland 457 Comment
  UCD170575  Rubus parviflorus var. velutinus Gordon Leppig 1998-5-7 751 Humboldt Quarry Rd., off Jacoby Creek. 97 Comment
  UC1541464  Rubus praecox H. E. Parks April 1935 5537 Humboldt Trinidad Comment
  CAS-BOT-BC156723  Rubus spectabilis Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  RSA245291  Rubus spectabilis J. D. Ackerman, A. M. Montalvo 1973-3-27 41 Humboldt 1.5 miles N of Manila Comment
  CAS-BOT-BC158791  Rubus ursinus Doris K. Kildale 1927-5-13 3139 Humboldt Redwood Creek at Berry's 289 Comment
  HSC19697  Rubus ursinus John A. Dubois 1962-5-23 21 Humboldt 20 mi. E of Arcata. Comment
  HSC8607  Rubus ursinus R. E. Hafenfeld 1965-5-9 5 Humboldt Near jct. of Gold Bluff Beach Rd.and Squashan Cr. Comment
  UC1199050  Rubus ursinus Joseph P. Tracy 1939-4-16 16210 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  UCD17620  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 044 Humboldt California. Humboldt County: Ettersburg. Comment
  UCD17623  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 041 Humboldt California. Humboldt County: west boundary of Whittenmore State Park on road from Garberville (Redhill) to Briceland. 15.25 miles east of Ettersburg via Briceland. Comment
  HSC101448  Rubus ursinus subsp. macropetalus Cara M. Witte 2008-6-27 761 Humboldt Approximately 1.5 miles south of intersection of National Forest 1 and 5N04 1546 Comment
  HSC98908  Rubus ursinus subsp. macropetalus Cara Witte 2007-6-1 172 Humboldt Near intersection of National Forest 1 and Forest Service Road 5N10. 1441 Comment
  HSC17569  Rumex acetosella D. B. Bader 1963-3-1 37 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC38935  Rumex acetosella Linda M. Barker 1976-5-13 1483 Humboldt 3 mi. W of Arcata. Comment
  HSC17571  Rumex acetosella D. E. Anderson 1961-9-30 1836 Humboldt Comment
  HSC34977  Rumex crassus Thomas W. Nelson 1974-9-13 1712 Humboldt King Salmon area Comment
  CAS-BOT-BC421524  Rumex crassus Doris K. Kildale 1926-8-12 2481 Humboldt Moonstone Beach near Trinidad Comment
  JEPS39913  Rumex obtusifolius W. L. Jepson 1932-8-2 16476 Humboldt Bull Creek Dyerville Comment
  UC495729  Rupertia physodes Joseph P. Tracy 1930-6-15 8765 Humboldt near Blocksburg; Northern Coast Ranges 457 Comment
  RSA249520  Ruppia maritima Robert F. Thorne, Percy C. Everett 1965-8-9 35340 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  UCD92343  Rytidosperma penicillatum Ray Evans 1956-7-19 s.n. Humboldt Bear River, 3 miles east of Capetown. Comment
  HSC40219  Sagina apetala Barbara Kelly 1977-4-6 290 Humboldt N Spit 100 yds. W of Coast Guard Station Comment
  UC902094  Sagina saginoides Joseph P. Tracy 1947-8-24 17918 Humboldt near Box Camp Trinity Summit 1676 Comment
  HSC26873  Salicornia depressa Clifton Raymond Chesbrough 1973-6-20 103 Humboldt .25 mi. N of Eureka slough along Hwy. 101 Comment
  HSC69636  Salicornia depressa R. Kalal 1980-5-8 22 Humboldt Foster Rd. near Arcata 6 Comment
  OBI36622  Salicornia pacifica David J. Keil 1983-7-2 17297 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  UC673034  Salicornia virginica Joseph P. Tracy 1933-8-22 12987 Humboldt Mouth of Eel River 3 Comment
  UC490538  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt blueberry swamp in McKay Meadow; Klamath Mts., Trinity Summit 1524 Comment
  CAS-BOT-BC107720  Salix hookeriana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  CAS-BOT-BC107725  Salix hookeriana C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  CAS-BOT-BC107728  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC107757  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Sand dunes, near Samoa, on Humboldt Bay 6 Comment
  HSC40870  Salix hookeriana Linda M. Barker 1976-4-13 1383 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  JEPS38443  Salix hookeriana J. P. Tracy 1906-4-12 2401 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA34247  Salix hookeriana Doris K. Kildale 1927-5-14 3190 Humboldt Big Lagoon. Comment
  UC1196546  Salix hookeriana Joseph P. Tracy 1926-3-14 7390 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC212999  Salix hookeriana Joseph P. Tracy 1920-2-29 5309 Humboldt Ryans Slough Northern Coast Ranges, around Humboldt Bay 15 Comment
  UC470419  Salix hookeriana Joseph P. Tracy 1931-10-18 9739 Humboldt Camp Grant North Coast Ranges, Eel River 60 Comment
  UC470442  Salix hookeriana Joseph P. Tracy 1931-9-27 9692 Humboldt Alton to Fortuna (on gravel bars); Northern Coast Region, Eel River 15 Comment
  UC481355  Salix hookeriana Harold E. Parks 1931-5-12 956 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC506395  Salix hookeriana Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on gravel bar farthest upstream (nearest the Blue Slide bridge)) 91 Comment
  UC511977  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1251 Humboldt 2 mi e of Redwood Hwy. Engelhart gravel pit (above Blue Lake Rd., floodplain of Mad River); Mad River Comment
  UC512003  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1231 Humboldt 1 1/2 mi e Alton (floodplain of Van Duzen R.) 30 Comment
  UC709427  Salix hookeriana Joseph P. Tracy 1941-3-9 16800 Humboldt along Eel R. Camp Grant 48 Comment
  UCD111043  Salix hookeriana Linda M. Barker 1976-9-3 1693 Humboldt 3 miles west of Arcata. Comment
  CDA39527  Salix hookeriana Gordon Leppig 1999-4-15 1120 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  JEPS12975  Salix laevigata Joseph P. Tracy 1932-4-23 9835 Humboldt between Miranda and Redway (S. Fork of Eel River); Northern Coast Ranges 91 Comment
  POM218954  Salix laevigata H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers. S Fork of Eel River. Comment
  SJSU262  Salix laevigata Mrs. H. P. Bracelin 1931-4-1 272 Humboldt Sylvandale between Miranda & Meyers, S Fork Eel R Comment
  UC906710  Salix laevigata Harold E. Parks and Joseph P. Tracy 1942-5-16 11568 Humboldt vicinity of Garberville Garberville 152 Comment
  UC469477  Salix lasiandra subsp. lasiandra Joseph P. Tracy Jul 16 1930-Jul 19 1930 8929 Humboldt meadow at McKay Camp; Northern Coast Ranges, S. Fork Mt. 1676 Comment
  UC490525  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9796 Humboldt Alton to Fortuna; Northern Coast Region 15 Comment
  UC490539  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-7-13 10497 Humboldt meadow at Corral Prairie Corral Prairie; Klamath Mts., Trinity Summit 1524 Comment
  CAS-BOT-BC125217  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1122 Humboldt North bank of Mad River 1/4 mi. east of hwy. 101 6 Comment
  CAS-BOT-BC128197  Salix lasiandra var. lasiandra Doris K. Kildale 1927-7-23 3798 Humboldt Hoaglin Lake, near Lassicks Peaks Comment
  CAS-BOT-BC128200  Salix lasiandra var. lasiandra Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon Comment
  JEPS13068  Salix lasiandra var. lasiandra Joseph P. Tracy 1921-3-27 5427 Humboldt Korbel; Northern Coast Ranges 30 Comment
  CAS-BOT-BC107576  Salix lasiolepis Joseph P. Tracy 1934-3-25 13166 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107581  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-13 1255 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107584  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-12 1244 Humboldt Floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107599  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt On slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  CAS-BOT-BC107609  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-17 1333 Humboldt In sandy channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107645  Salix lasiolepis Joseph P. Tracy 1932-8-27 10753 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107648  Salix lasiolepis Joseph P. Tracy 1932-10-8 10866 Humboldt Berry's Mt. on Trinity Highway 762 Comment
  HSC96597  Salix lasiolepis Gordon Leppig 2003-2-22 1812 Humboldt Arcata Marsh, NE corner of log pond 3 Comment
  JEPS12930  Salix lasiolepis Joseph P. Tracy 1931-5-31 9327 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  JEPS12949  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1196627  Salix lasiolepis Joseph P. Tracy 1935-5-25 13890 Humboldt North Dobbyn Creek Dobbyn Creek 152 Comment
  UC212998  Salix lasiolepis Joseph P. Tracy 1919-9-13 5197 Humboldt near Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC275524  Salix lasiolepis Joseph P. Tracy 1923-4-15 6189 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469407  Salix lasiolepis Joseph P. Tracy 1927-3-27 7868 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469434  Salix lasiolepis Joseph P. Tracy 1931-10-11 9715 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC481175  Salix lasiolepis Harold E. and Susan T. Parks 1931-8-15 1079 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 100 Comment
  UC481340  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC490584  Salix lasiolepis Joseph P. Tracy 1932-6-4 10128 Humboldt Bridgeville 228 Comment
  UC506386  Salix lasiolepis Joseph P. Tracy 1932-6-19 10248 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  UC506388  Salix lasiolepis Joseph P. Tracy 1932-8-21 10357 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (on lower western foothills of mt.) 457 Comment
  UC506506  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC512000  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1236 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UCD111587  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-17 01321 Humboldt Redwood Creek, at Berry's, on Trinity Highway. 274 Comment
  CAS-BOT-BC107289  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01333 Humboldt in channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107421  Salix lasiolepis var. lasiolepis Alice Eastwood 1913-7-3 3417 Humboldt Bear River, McCourtneys Bridge Comment
  POM362657  Salix lucida subsp. lasiandra H. E. Parks 1931-3-24 911 Humboldt Fortuna. Eel River. 10 Comment
  SBBG57833  Salix lucida subsp. lasiandra H. E. Parks 1931-3-14 959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC125607  Salix melanopsis Harold E. Parks 1931-10-15 01077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  CAS-BOT-BC125610  Salix melanopsis Doris K. Kildale 1927-5-13 3143 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC125615  Salix melanopsis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 01252 Humboldt On floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  UC481343  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC511986  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1242 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  UC55408  Salix melanopsis Harley P. Chandler June, 1901 1519 Humboldt North Coast Ranges, Klamath R. 426 Comment
  CAS-BOT-BC129136  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt Rocky exposed places, head of Devil's Hole - Trinity Summit, Klamath Mountains 1828 Comment
  CAS-BOT-BC129151  Salix scouleriana Doris K. Kildale 1927-5-13 3146 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC129154  Salix scouleriana Doris K. Kildale 1926-9-9 2687 Humboldt Black Oaks, near Low Gap of Mad River Comment
  CAS-BOT-BC129160  Salix scouleriana Joseph P. Tracy 1937-3-21 15236 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  CAS-BOT-BC129165  Salix scouleriana Harold E. Parks 1933-1-1 1341 Humboldt Spruce Cove, Highway 101, Trinidad 64 Comment
  CAS-BOT-BC129168  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt Open ground at Corral Prairie 1524 Comment
  HSC102196  Salix scouleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1110 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
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Jul 9 2015
  HSC20084  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Laribee Ridge, Van Duzen River Comment
  HSC56010  Salix scouleriana Gilbert Muth 1979-7-31 11493 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  UC490536  Salix scouleriana Joseph P. Tracy 1932-7-13 10518 Humboldt open groung at Corral Prairie (back from the meadows); Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC525974  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  HSC33297  Salix sitchensis R. W. Becking, Thomas Overturf 1975-3-25 705 Humboldt Mad River, 1 mi. S of Blue Lake 21 Comment
  HSC38145  Salix sitchensis Thomas W. Nelson 1976-11-3 3279 Humboldt Eureka, E side of F St., 3800 block Comment
  HSC79545  Salix sitchensis Kenneth Clark 1980-3-24 546 Humboldt Alluvial terrace of Dead Man's Gulch 15 Comment
  HSC90388  Salix sitchensis Jean Hanson 1980-3-8 7 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90401  Salix sitchensis Jean Hanson 1980-3-8 3 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC481215  Salix sitchensis Harold E. Parks 1931-5-20 995 Humboldt Mad R. Blue Lake; , Blue Lake 15 Comment
  UC490492  Salix sitchensis Joseph P. Tracy 1932-8-27 10749 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  HSC2201  Salix tracyi J. P. Tracy 1933-4-9 10967 Humboldt Bridgeville, along Van Duzen River 229 Comment
  SEINET4855902  Salix tracyi Unknown 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  JEPS12179  Salpichroa origanifolia Joseph P. Tracy 1933-8-22 12972 Humboldt Eureka 0 Comment
  HSC101557  Salvia mellifera J. P. Smith, J. O. Sawyer 2009-10-4 12685 Humboldt Along New Navy Base Road near Samoa Boat Ramp 2 Comment
  HSC34273  Sambucus nigra subsp. caerulea K. Irwin 1975-8-13 Humboldt N Trinity Mtn. Comment
  UC1541386  Sanicula arctopoides H. E. Parks May 1934 4327 Humboldt Trinidad, Egg Point Egg Point; Trinidad, Egg Point Comment
  HSC99378  Sanicula bipinnata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 27 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
  HSC39006  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1976-5-31 2648 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC68612  Sanicula crassicaulis Jacqueline Greenleaf 1980-7-16 245 Humboldt Near Buck Mountain. 1250 Comment
  UC314592  Sanicula crassicaulis Joseph P. Tracy 1923-6-19 6292 Humboldt Northern Coast Ranges, Upper Mattole Valley Upper Mattole Valley; Northern Coast Ranges, Upper Mattole Valley 152 Comment
  HSC21637  Sanicula crassicaulis B. R. Templeton 1962-4-16 Humboldt 3 mi. W of Orleans on Hwy. 35 Comment
  HSC45599  Sanicula tracyi Thomas W. Nelson 1978-5-27 4091 Humboldt McKneown Ranch N of Dinsmore. Comment
  RSA167239  Sanicula tracyi Joseph P. Tracy 1950-7-6 19022 Humboldt Sproston s Place, 3 miles south of Burr Valley 1067 Comment
  HSC34957  Sanicula tuberosa Thomas W. Nelson 1975-5-24 1863 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS973  Sanicula tuberosa Joseph P. Tracy 1927-6-12 8156 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1219 Comment
  UC1197078  Sanicula tuberosa Joseph P. Tracy 1918-5-28 4946 Humboldt Northern Coast Ranges, on Bald Mt., High Prairie High Prairie; Northern Coast Ranges, Bald Mt., High Prairie 1066 Comment
  UC412776  Sarcodes sanguinea P. E. Goddard 1906-6 681 Humboldt ridge near <Lassick> Peak Comment
  UC673256  Saxifraga mertensiana Lincoln Constance, Reed C. Rollins 1942-5-11 2869 Humboldt 3 mi w of East Fork of Willow Creek; North Coast Ranges Comment
  HSC55745  Saxifragopsis fragarioides G. L. Clifton, Griswold 1979-7-26 10267 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UCD126460  Schedonorus arundinaceus A. H. Murphy 1947-5-15 s.n. Humboldt Sherman Flat, ca. 3.5 miles north of Blocksburg. Comment
  CAS-BOT-BC111333  Schoenoplectus acutus var. occidentalis Robert F. Thorne; P. Everett 1965-8-9 35283 Humboldt Big Lagoon 3 Comment
  HSC7443  Schoenoplectus americanus D. E. Anderson 1961-9-9 1792 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon. Comment
  RSA246910  Schoenoplectus maritimus Robert F. Thorne, Percy C. Everett 1965-8-7 35213 Humboldt Samoa Peninsula: near sea level Comment
  HSC58384  Scirpus congdonii Terry Griswold 1979-7-25 10920 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  CDA39126  Scirpus maritimus Gordon Leppig 1998-6-25 851 Humboldt Route 101, mile marker 81.60 Comment
  UC1197794  Scoliopus bigelovii Joseph P. Tracy 1913-5-4 4060 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC38928  Scrophularia californica Linda M. Barker 1976-5-13 1473 Humboldt 3 mi. W of Arcata. Comment
  RSA475245  Scrophularia californica Lyman D. Benson 1938-7-11 385 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  HSC43851  Scutellaria antirrhinoides Maralyn O'Meara 1974-7-17 553 Humboldt Kneeland Comment
  JEPS62919  Scutellaria antirrhinoides W. L. Jepson 1902-7-1 1969 Humboldt near Berrys Ranch (Redwood Creek, Expedition from Ukiah to the Hupa Indian Reservation); Redwood Creek 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
  UC25790  Scutellaria antirrhinoides Chesnut and Drew July 1888 Humboldt Campbells Comment
  HSC35354  Scutellaria siphocampyloides A. M. Montalvo, J. D. Ackerman 1975-6-22 483 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC99534  Sedum laxum subsp. flavidum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 199 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1829 Comment
  CAS-BOT-BC64701  Sedum laxum subsp. heckneri Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC63212  Sedum laxum subsp. heckneri M. A. Baker 1979-7-6 1015 Humboldt W slope of Rattlesnake Creek Ridge overlooking Red Cap Creek, outcrop and road cut of FS Rd. 10N01 Comment
  HSC76351  Sedum laxum subsp. heckneri Teresa Prendusi 1981-7-21 279 Humboldt Near Whiteys Peak 1646 Comment
  UC1198839  Sedum laxum subsp. heckneri Joseph P. Tracy 1933-8-30 13015 Humboldt Grouse Mountain Grouse Mountain (on rock ledge) 1371 Comment
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Aug 17 2011
  HSC58040  Sedum obtusatum subsp. retusum Gilbert Muth 1979-8-1 11883 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC49578  Sedum obtusatum subsp. retusum Brad Klipfel 1975-6-17 690 Humboldt Horse Mtn. Comment
  UC1198840  Sedum radiatum Joseph P. Tracy 1926-5-15 7482 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie (on Barry Road) 762 Comment
  CAS-BOT-BC59120  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Port Trinidad Comment
  HSC59656  Sedum spathulifolium var. pruinosum Michael Dalke 1979-5-10 78 Humboldt Elk Head, 1/2 mi. W of Stagecoach Dr. at College Cove 30 Comment
  HSC6480  Sedum spathulifolium var. spathulifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2103 Humboldt Larabee Valley 762 Comment
  JEPS307  Selaginella oregana Joseph P. Tracy 1928-8-29 8426 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  SEINET10569166  Selaginella oregana Joseph P. Tracy 1933-2-19 Tracy 10903 Humboldt North Fork of Mad River, above Korbel. On rocks in sheltered places on river bank. 61 Comment
  UC1284956  Senecio blochmaniae R. F. Hoover 1946-10-29 6526 Humboldt near Callender railroad siding Comment
Read comments
Mar 19 2007
  HSC72692  Senecio integerrimus var. major Gail Newton 1980-6-24 562 Humboldt Near Ladder Rock 1570 Comment
  HSC98958  Senecio integerrimus var. major Cara Witte 2008-7-28 950 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  UC128740  Senecio integerrimus var. major Joseph Burtt Davy and Walter C. Blasdale 1899-6-22 5846 Humboldt Trinity Summit Comment
  UC128743  Senecio integerrimus var. major Harley P. Chandler 1086 Humboldt Harris North Coast Ranges 304 Comment
  UC91378  Senecio integerrimus var. major Harley P. Chandler June 1901 1274 Humboldt Hupa Indian Reservation North Coast Ranges 1036 Comment
  UCD135609  Senecio minimus John M. Tucker 1948-9-4 1863 Humboldt Beck's Ranch, Hydesville. Comment
  UC1199238  Senecio sylvaticus Harold E. Parks and Joseph P. Tracy 1934-6-27 11034 Humboldt Redwood Creek at Berry's; Redwood Creek at Berry's 274 Comment
  CAS-BOT-BC364330  Senecio triangularis Joseph P. Tracy 1932-7-13 10523 Humboldt Trinity Summit. Corral Prairie 1584 Comment
  HSC53962  Senecio triangularis Griswold, Butler 1979-7-11 7015 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC34816  Senecio vulgaris Dryden 1975-4-20 123 Humboldt Arcata 0 Comment
  UC544763 Image available Sequoia sempervirens E. Fritz Apr 1934 8012 Humboldt Richardson Grove Comment
  SEINET10612372  Sequoia sempervirens Joseph P. Tracy 1940-10-17 Tracy 16770 Humboldt Dyerville 49 Comment
  UCD92848  Setaria viridis Don Hager 1957-9-25 s.n. Humboldt Titlow Hill, 20 miles southwest of Willow Creek. Comment
  RSA43681  Sherardia arvensis H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  UC602550  Sherardia arvensis Joseph P. Tracy 1933-6-13 12560 Humboldt Bair's; Redwood Creek 609 Comment
  HSC19859  Sherardia arvensis John A. Dubois 1962-5-23 25 Humboldt 20 mi. E of Arcata Comment
  CAS-BOT-BC205575  Sidalcea malachroides Alice Eastwood; John Thomas Howell 1937-6-23 4855 Humboldt 8 miles from Korbel on road to Maple Creek Comment
  CAS-BOT-BC205578  Sidalcea malachroides Doris K. Kildale 1928-5-27 5935 Humboldt Kneeland Prairie 853 Comment
  UC175692  Sidalcea malachroides Joseph P. Tracy 1912-6-30 3716 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  UC18692  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  RSA12518  Sidalcea malviflora subsp. asprella Carl B. Wolf 1934-7-3 5918 Humboldt 21 miles from Orick on Weitchpec Rd. common. 152 Comment
  HSC98003  Sidalcea malviflora subsp. nana Cara Witte 2007-7-25 582 Humboldt Forest Service Road 5N10. Approximately 1/2 mile north of intersection with Forest Service Road 5N10C. 1270 Comment
  HSC74227  Sidalcea oregana subsp. spicata M. A. Baker 1980-7-22 3089 Humboldt Near Grogan Hole. 1676 Comment
  UC668102  Silene antirrhina Joseph P. Tracy 1929-7-4 8615 Humboldt French Camp Ridge 1066 Comment
  UC1137920  Silene californica H. S. Yates 1936-6-23 5874 Humboldt 4 mi nne Cathay Peak; Dyerville Quad., nne of Cathay Peak Comment
  UCR123953  Silene californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6965 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  RSA185758  Silene californica John H. Thomas 1949-6-14 924 Humboldt Salmon River Valley near its junction with Klamath River. Comment
  SEINET11933919  Silene californica F. H. Utech 1986-1 86 -414 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  UC668093  Silene campanulata Joseph P. Tracy 1932-7-18 10704 Humboldt head of Brett Hole Trinity Summit, head of Brett Hole 1828 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
  RSA21442  Silene campanulata subsp. glandulosa C. B. Wolf 1937-8-12 9206 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  HSC4184  Silene gallica Lincoln Constance 1934-5-24 631 Humboldt S Fork Eel River, bordering lower Look Prairie on E. side 122 Comment
  RSA502370  Silene hookeri D. W. Taylor 1971-5-12 1064 Humboldt At the junction of the Trinity and New Rivers, 305 Comment
  CAS-BOT-BC389067  Silene laciniata subsp. californica Alice Eastwood; John Thomas Howell 1937-6-23 4760 Humboldt Dinsmore's 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
  UC1198793  Sisymbrium altissimum Joseph P. Tracy 1945-7-20 17515 Humboldt Eureka 30 Comment
  HSC45084  Sisymbrium officinale R. Sutherland 1978-4-25 1 .25478 Humboldt Mouth of Buck Creek 21 Comment
  HSC13915  Sisyrinchium bellum F. B. Plett 1963-3-31 14 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC91943  Solanum americanum E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  HSC93540  Solanum americanum Spadoni 1997-12-2 Humboldt 1335 J St., Eureka 15 Comment
  CHSC52961  Solanum aviculare L. P. Janeway 1984-5-16 803 Humboldt On the North Spit of Humboldt Bay; alongside the dirt road on south side of the Coast Guard Station. 3 Comment
  HSC56455  Solidago elongata Griswold, Butler 1979-7-12 7232 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC479494  Solidago elongata Marcus E. Jones, A. M. 1931-7-12 29135 Humboldt Alton Comment
  SEINET6417800 Image available Solidago occidentalis S. K. Harris, C. Wilder 1938-9-7 879 Humboldt Van Dusen River, above Blue Slide Comment
  CAS-BOT-BC365670  Solidago spathulata Ira L. Wiggins 1930-6-25 4616 Humboldt 2 miles north of Samoa Comment
  HSC6199  Solidago spathulata J. W. Johnson 1961-8-17 1042 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  SEINET3896347  Solidago spathulata Thomas Nelson 1971-11-11 598 Humboldt At the foot of Murray Rd. McKinleyville.; 0 Comment
  CAS-BOT-BC364971  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC582629  Soliva sessilis Joseph P. Tracy 1936-6-3 14852 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC21344  Sparganium angustifolium Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  JEPS83447  Spartina densiflora Ken Berg 1986-7-28 637 Humboldt foot of I St. Arcata; Humboldt Bay, Arcata Comment
  RSA796313  Spartina foliosa D. Kearns 1979-8-24 20 Humboldt Arcata Bay. Near the Arcata Boat Launching Facility at the south end of I Street. Comment
  HSC37315  Spergularia rubra J. P. Smith 1976-5-27 8814 Humboldt Corner of 14th and G St. Arcata Comment
  HSC68109  Spergularia rubra J. P. Smith, J. O. Sawyer 1973-5-12 6670 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  SBBG3128  Spiraea douglasii M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  UC666992  Spiranthes porrifolia Joseph P. Tracy 1937-8-15 15667 Humboldt 15 mi e Orick (Bald Hills); Bald Hills 914 Comment
  UC1196401  Spiranthes romanzoffiana Joseph P. Tracy 1941-8-24 17037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC180214  Stachys ajugoides var. rigida Joseph P. Tracy 1914-6-14 4512 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UCLA71172  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  UCLA71136  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15937 Humboldt vicinity Carlotta 30 Comment
  HSC59567  Stachys arvensis Rick Lundquist 1979-4-9 5 Humboldt Arcata, St. Louis Rd., .1 mi. N of Hwy. 101 overpass 15 Comment
  RSA447391  Stachys emersonii Christopher Davidson 1973-5-29 2201 Humboldt Ca. 2 mi S of Carlotta on St. Hwy 36 61 Comment
  HSC58075  Stachys rigida var. rigida G. L. Clifton, Griswold 1979-8-1 11970 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1541664  Stachys rigida var. rigida H. E. and S. T. Parks May, 1930 756 Humboldt in redwood belt of Van Duzen River Comment
  CAS-BOT-BC175348  Stellaria borealis subsp. sitchana Malcom A. Nobs; S. Galen Smith 1949-8-9 1245 Humboldt Clam Beach Comment
  RSA168872  Stellaria crispa Joseph P. Tracy 1950-7-15 19042 Humboldt Moist ground under maple trees, Raccoon Creek, near mouth, 1 mile NE of Patterson s Ranch. Willow Creek vicinity. Comment
  HSC59679  Stellaria media George Kirn 1977-10-14 Humboldt Eureka, 6th and L St. 12 Comment
  HSC95683  Stellaria media Kevin Thomas 2004-3-18 6 Humboldt Near Clam Beach exit of Hwy. 101 N, along old Hwy. 101, at end of Little River Rd. Comment
  HSC103125  Stenanthium occidentale M. Mesler, Robin Bencie 2009-7-7 808 Humboldt Big Hill Rd, near Domingo Creek. 1367 Comment
  UC902035  Stenanthium occidentale Joseph P. Tracy 1949-8-26 18517 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC204697  Stephanomeria elata Joseph P. Tracy 1918-7-7 5037 Humboldt Garberville Northern Coast Ranges 152 Comment
  HSC40308  Stipa lemmonii Thomas W. Nelson, Jane P. Nelson 1976-6-22 2852 Humboldt Along road to Goat Hill at spring. 1646 Comment
  HSC6946  Streptanthus tortuosus R. Spellenberg 1965-6-14 1130 Humboldt S of airport, 5 mi. E of Kneeland Comment
  HSC70806  Streptanthus tortuosus Gail Newton 1980-7-24 1787 Humboldt Near Somes Mtn. 1615 Comment
  POM126166  Streptanthus tortuosus Joseph P. Tracy 1922-9-3 6106 Humboldt Klamath River at Bluff Creek. 152 Comment
  HSC100891  Streptopus amplexifolius Carl C. Marshall May 1886 191 Humboldt Jacoby Cr. Comment
  POM87663  Streptopus amplexifolius Le Roy Abrams, Rimo C. Bacigalupi 8302 Humboldt Near county line Comment
  JEPS62166  Streptopus amplexifolius var. americanus W. L. Jepson 1902-7-17 2058 A Humboldt trail to Devil's Backbone; Trinity Summit 2133 Comment
  UC303040  Streptopus amplexifolius var. americanus Joseph P. Tracy 1926-5-22 7508 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  HSC58821  Symphyotrichum bracteolatum G. L. Clifton, Griswold 1979-8-2 12212 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC99173  Symphyotrichum chilense Alice Eastwood 1923-8-14 12318 Humboldt Samoa Comment
  UC205155  Symphyotrichum hendersonii Joseph P. Tracy 1919-9-18 5224 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  UC1173673  Symphyotrichum spathulatum Joseph P. Tracy 1939-8-16 16402 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1402 Comment
  UC673095  Symphyotrichum subspicatum Joseph P. Tracy 1940-9-26 16728 Humboldt Eureka 9 Comment
  UC1222192  Symphytum asperum Joseph P. Tracy 1949-6-28 18358 Humboldt Salmon Creek Valley s. end Humboldt Bay, Salmon Creek Valley Comment
  RSA89773  Tanacetum camphoratum P. A. Munz 1954-7-25 19869 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  SBBG53001  Tanacetum vulgare J. D. Hobson -Jun-1966 Humboldt Loleta Comment
  SBBG56445  Taxus brevifolia L. Rowntree 1931-7-26 Humboldt Carlotta Comment
  HSC20432  Tellima grandiflora Jack Rockwell 1962-4-24 24 Humboldt S bank Van Duzen River, E of Hwy. 101 9 Comment
  JEPS60709  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1933-5-20 12256 Humboldt Mattole Valley Northern Coast Ranges 30 Comment
  UC1196167  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1935-5-25 13825 Humboldt along head of Larrabee Creek Blocksburg 518 Comment
  UC495728  Thermopsis gracilis Joseph P. Tracy 1929-7-4 8612 Humboldt French Camp Ranch; Northern Coast Ranges 1066 Comment
  UC902017  Thlaspi arvense Joseph P. Tracy 1949-7-9 18338 Humboldt near Freshwater Corners; near Freshwater Corners 30 Comment
  UC1198809  Thlaspi montanum var. montanum Harold E. Parks and Joseph P. Tracy 1934-6-14 11029 Humboldt Horse Mt. 1402 Comment
  CAS-BOT-BC436903  Tiarella trifoliata var. unifoliata L. R. Abrams 1916-7-11 6014 Humboldt Mouth of Grizzley Creek on Van Duzen River Comment
  HSC98073  Tiarella trifoliata var. unifoliata Cara Witte 2007-7-12 526 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  UC154081  Tiarella trifoliata var. unifoliata J. P. Tracy 1907-6-20 2567 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 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
  JEPS49714  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-19 82 c Humboldt canyon near Carlotta; canyon near Carlotta Comment
  UC302171  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1925-7-5 7181 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC447611  Tolmiea menziesii J. P. Tracy 1900-5-30 832 Humboldt Immediate vicinity of Eureka 152 Comment
  UC27661  Tonella tenella Mrs. M. H. Manning Apr 1899 Humboldt Hoopa Valley Comment
  HSC21164  Tonella tenella D. E. Anderson 1963-5-18 2452 Humboldt Near junction of New and Trinity Rivers Comment
  HSC84015  Tonella tenella L. P. Janeway 1983-4-30 241 Humboldt At E Fork USFS Campground, canyon bottom 473 Comment
  HSC97505  Tonella tenella Cara Witte 2007-5-22 74 Humboldt Cold Spring. 0.5 miles south of Titlow Hill. 1422 Comment
  UC1197064  Torilis arvensis subsp. arvensis Mrs. Archie Cathey 1938-7-30 Humboldt Miranda Cathey Ranch 152 Comment
  CAS-BOT-BC169174  Toxicodendron diversilobum Alice Eastwood; John Thomas Howell 1937-6-22 4712 Humboldt Near Harris Comment
  CAS-BOT-BC323057  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  UC549767 Image available Tracyina rostrata Joseph P. Tracy 1916-6-20 4735 Humboldt Alder Point, from Alder Point to Dyke Ranch Northern Coast Ranges, Alder Point; Alder Pt., Humboldt Co. 304 Comment
  HSC62890  Tradescantia ohiensis J. M. DiTomaso 1979-5-20 1056 Humboldt 0.3 mi. N of Trinidad on Stagecoach Rd. Comment
  HSC63067  Tradescantia ohiensis David Wheeler 1979-5-17 115 Humboldt Stagecoach Rd., 1 mi. from the Trinidad Post Office Comment
  JEPS63108  Trichostema lanceolatum Milo S. Baker 1923-8-25 332 Humboldt highway near Garberville; North Coast Comment
  HSC102186  Trichostema oblongum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1100 Humboldt Andy's Camp 1564 Comment
  HSC54597  Trientalis latifolia Overton, Butler 1979-7-24 9676 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  RSA239714  Trientalis latifolia Larry E. DeBuhr 1973-4-23 985 Humboldt Richardson Grove Redwood State Park. Comment
  UC1197182  Trifolium bifidum var. decipiens Joseph P. Tracy 1906-7-4 2522 Humboldt near Hydesville (Yager Creek); Northern Coast Ranges 60 Comment
  HSC45114  Trifolium ciliolatum R. Sutherland 1978-5-16 7 .16578 Humboldt 155 Comment
  UC1197206  Trifolium ciliolatum Joseph P. Tracy 1927-5-8 5463 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  SEINET12157175  Trifolium cyathiferum J. P. Tracy 1937-1 15519 Humboldt Devils Hole, head of Hors Linto Creek, Trinity Summit 1676 Comment
  UC1223490  Trifolium cyathiferum Joseph P. Tracy 1950-7-6 19007 Humboldt 2 mi s Burr Valley (on Albee Rd) 1158 Comment
  UCD108809  Trifolium dichotomum Joseph P. Tracy 1933-5-20 12234 Humboldt Cape Mendocino. Mouth of Domingo Creek. South of point of the Cape. Comment
  HSC38929  Trifolium dubium Linda M. Barker 1976-5-13 1476 Humboldt 3 mi. W of Arcata. Comment
  SD87601  Trifolium dubium F. W. Peirson 1923-7-11 3622 Humboldt Coast, 20 miles north of Eureka Comment
  UC16504  Trifolium dubium Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5529 Humboldt near Scotia Comment
  HSC15122  Trifolium fucatum D. B. Bader 1963-4-1 6 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101, along the R.R. tracks Comment
  UC495735  Trifolium fucatum Joseph P. Tracy 1927-5-8 7992 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  HSC100534  Trifolium fucatum Carl C. Marshall Mar 1886 18 Humboldt Hills. Comment
  UC162782  Trifolium hybridum J. P. Tracy 1904-7-3 2108 Humboldt vicinity Eureka 0 Comment
  HSC59590  Trifolium incarnatum Rick Lindquist 1979-4-9 7 Humboldt Arcata, St. Louis Rd., 0.1 mi. N of U.S. Hwy. 101 overpass on Hwy. embankment 15 Comment
  JEPS80000  Trifolium longipes var. elmeri Joseph P. Tracy 1932-7-13 10525 Humboldt Corral Prairie Klamath Mtns, Trinity Summit 1524 Comment
  UC302112  Trifolium longipes var. oreganum Joseph P. Tracy 1926-6-20 7608 Humboldt Horse Mtn North Coast Ranges Comment
  RSA168855  Trifolium macraei Joseph P. Tracy 1950-6-18 18842 Humboldt Cape Ridge one mile est of Cape Mendocino. 152 Comment
  SBBG3831  Trifolium macraei H. and M. Dearing 1939-5-25 3441 Humboldt near Samoa Comment
  UC1197236  Trifolium macraei Joseph P. Tracy 1911-5-30 3204 Humboldt Bucksport Northern Coast Ranges, Humboldt Bay 0 Comment
  HSC15221  Trifolium microcephalum J. P. Tracy 1926-5-2 7429 Humboldt Trinity River near the S Fork Comment
  HSC45140  Trifolium microcephalum R. Sutherland 1978-5-19 6 .19578 Humboldt Bridge over Redwood Creek at 'Shop Rd. 128 Comment
  HSC45143  Trifolium microcephalum R. Sutherland 1978-5-12 12 .12578 Humboldt 282 Comment
  HSC15147  Trifolium microdon J. W. Johnson 1962-5-10 1332 Humboldt Arcata, Christenson Farm on the Samoa Peninsula Comment
  CDA30206  Trifolium obtusiflorum M. K. Beyers, I. Shepardson 2009-9-13 245 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  HSC59678  Trifolium pratense George Kirn 1977-10-1 Humboldt Eureka, open bayfront field 1/2 mi E of Hwy 255 6 Comment
  HSC100539  Trifolium repens Carl C. Marshall May 1886 205 Humboldt Everywhere. Comment
  UC1197564  Trifolium variegatum var. melananthum Joseph P. Tracy 1915-6-6 4643 Humboldt Steven Hill place Northern Coast Region (Eureka) 0 Comment
  SD53239  Trifolium virescens Darley F. Howe 1962-5-22 3308 Humboldt 0.7 mile east of Orick on Bald Mt. Road. 395 Comment
  UC1223311  Trifolium willdenovii Joseph P. Tracy 1934-4-8 13170 Humboldt betw Miranda and Redway South Fork of Eel River Comment
  JEPS4396  Trifolium willdenovii Joseph P. Tracy 1927-6-12 8169 Humboldt lower slopes Horse Mtn; Northern Coast Ranges 914 Comment
  UC1197520  Trifolium willdenovii Joseph P. Tracy 1911-6-25 3261 Humboldt Bucksport Northern Coast Ranges 0 Comment
  HSC15181  Trifolium wormskioldii Joel W. Reinhard 1966-5-14 40 Humboldt Two beaches N of College Cove. Comment
  POM277677  Trifolium wormskioldii Lyman D. Benson 1928-7-10 438 Humboldt Clam Beach, Trinidad. Hills back of the ocean. 15 Comment
  SEINET12156845  Trifolium wormskioldii J. P. Tracy 1950-1 18714 Humboldt near the "Sand Cut", Wild Cat rd, 2 mi S of Ferndale Comment
  CAS-BOT-BC451810  Triglochin maritima Robert F. Thorne; P. Everett 1965-8-9 35303 Humboldt Big Lagoon 3 Comment
  UC1130595  Triglochin maritima H. S. Yates 1936-6-23 5860 Humboldt 1 mi w Bayside; Eureka Quadrangle Comment
  CAS-BOT-BC451807  Triglochin maritima W. R. Dudley 1899-6-1 s.n. Humboldt Below Samoa--Eureka Penn. [Peninsula] Comment
  HSC100504  Triglochin maritima Carl C. Marshall Jul 1886 230 Humboldt Salt marshes, etc. Comment
  HSC15686  Trillium albidum W. D. Stevens 1964-5-16 16 Humboldt 1.0 mi. N of Kneeland School Comment
  HSC99359  Trillium kurabayashii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 8 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC96775  Trillium kurabayashii M. Mesler 2006-6-6 609 Humboldt 1.2 mi. SE of intersection of USFS Rd. 8N01 and Box Camp loop 1524 Comment
  CHSC62019  Trillium ovatum J. R. Biddison 1993-4-7 13 Humboldt Phillipsville, Avenue of the Giants, w side of road, 1 mi s of hwy 101 junction. 45 Comment
  HSC48827  Trillium ovatum Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 27 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  SBBG58763  Trillium ovatum R. Hartwell 1938-8-4 104 Humboldt Bull Crk Flat Grove, near Eel River Comment
  UCR275118  Trillium ovatum Charity A. Hartshorn 2016-5-14 28 Humboldt Arcata Community Forest 244 Comment
  HSC15695  Trillium ovatum Francis Winter 1960-5-23 Humboldt 2 mi. E of Korbel, Korbel-Maple Creek Rd. 183 Comment
  SD112794  Trillium ovatum Darley F. Howe 1963-5-26 3557 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  SDSU11973  Trillium ovatum Leslie Hickson 1990-4-15 15 IV90F Humboldt Oak Street 0.5 miles north of Freshwater. Off the right side of the road under the Redwood tees. Eureka, Ca. Comment
  SJSU10558  Trillium ovatum C. P. Hansen 1966-4-6 70 Humboldt by Kneeland Rd 20 mi E of Eureka Comment
  UC198870  Triodanis biflora Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  JEPS11779  Triodanis perfoliata W. L. Jepson 1902-6 1940 Humboldt Green Point Ranch Redwood Creek (Redwood Creek) Comment
  UC1198038  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1917-5-30 4805 Humboldt Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  HSC20851  Triphysaria eriantha subsp. eriantha R. T. Forester 1963-3-2 26 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC95575  Triphysaria eriantha subsp. eriantha Andrea Pickart 2002-3-29 17 Humboldt Samoa Dunes 0 Comment
  SBBG7056  Triphysaria versicolor subsp. faucibarbata H. and M. Dearing 1939-5-25 3444 Humboldt near Arcata Comment
  JEPS13344  Triphysaria versicolor subsp. faucibarbata H. E. and S. T. Parks May, 1930 750 Humboldt near Bridgeville Comment
  RSA249348  Triphysaria versicolor subsp. versicolor James Payne Smith 1974-5-16 7370 Humboldt Arcata; growing in abundance in the Median strip along Samoa Blvd. near Sunny Brae. Comment
  RSA10082  Trisetum canescens Joseph P. Tracy 1932-7-16 10614 Humboldt Trinity Summit 1524 Comment
  SEINET201038 Image available Trisetum canescens Joseph P. Tracy 1901-6-23 1167 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC552772  Trisetum canescens Joseph P. Tracy 1934-6-27 11074 Humboldt Grouse Mt.; Northern Coast Ranges 1432 Comment
  UCD93635  Trisetum canescens R. Tofsrud 1947-7-1 199 Humboldt North of Harris. Comment
  HSC13409  Trisetum canescens R. Long 1964-5-16 Humboldt Tish-tang Ranger Station near Willow Creek Comment
  HSC104044  Trisetum cernuum C. Reynolds 2015-4-25 38 Humboldt About 1 mi. from Redwood Creek Trailhead, off Bald Hills Road 26 Comment
  HSC32937  Triteleia laxa Thomas W. Nelson, James Nelson 1973-5-28 952 Humboldt McKeown Ranch N of Dinsmore Comment
  SBBG896  Triteleia laxa K. K. Muller 1954-6-21 631 Humboldt Olsen Crk, 2 mi ENE of Mad River Comment
  SEINET200770  Triteleia laxa Joseph P. Tracy 1927-5-30 8094 Humboldt Garberville 152 Comment
  UCD139410  Triteleia laxa Joseph P. Tracy 1942-6-15 17129 Humboldt Humboldt County Englewood, Natural prairie, near Redcrest resort. 91 Comment
  UC1197720  Triteleia laxa J. P. Tracy 1901-6-23 1188 Humboldt fields near Ryans Slough Hill; immediate vicinity of Eureka 0 Comment
  UC1134186  Tsuga heterophylla H. S. Yates 1936-6-18 5738 Humboldt 10 mi s of the Klamath River Orick Quadrangle 60 Comment
  UC63994  Tsuga heterophylla Mrs. M. H. Manning 1901-10-1 Humboldt near Hupa 762 Comment
  JEPS46766  Tsuga mertensiana W. L. Jepson 1903-6-1 Humboldt 12 mi from Ft. Bragg (Noyo River); Noyo River Comment
  UC672886  Typha latifolia Joseph P. Tracy 1934-7-14 13398 Humboldt along Mad River near Blue Lake; along Mad River, near Blue Lake 15 Comment
  HSC49395  Umbellularia californica R. York 1979-4-16 235 Humboldt Corner of 12th and D in Arcata Comment
  RSA46913  Umbellularia californica Doris K. Kildale 1926-1-24 1488 Humboldt Kneeland, near schoolhouse. 762 Comment
  UC915720  Umbellularia californica W. L. Jepson 1903-6-13 36 Humboldt Briceland Comment
  HSC59082  Urtica dioica subsp. gracilis Thomas Wood 1979-5-1 144 Humboldt Arcata, near house at 3799 Spear Ave., along fence. 9 Comment
  UC672857  Urtica dioica subsp. gracilis Joseph P. Tracy 1927-3-6 7837 Humboldt Elk River 30 Comment
  HSC55180  Vaccinium cespitosum Gilbert Muth 1979-8-1 12191 Humboldt Near N Trinity Mtn. 1798 Comment
  UC22192  Vaccinium cespitosum J. P. Tracy 1899-3 Humboldt Eureka Comment
  UC562345  Vaccinium cespitosum Joseph P. Tracy 1935-7-26 14270 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UC1197784  Vaccinium membranaceum Joseph P. Tracy 1934-8-29 13625 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC199305  Vaccinium ovatum Doris K. Kildale 1927-5-7 3115 Humboldt Elk Ridge Comment
  CAS-BOT-BC199317  Vaccinium ovatum C. Hart Merriam 1921-7-7 s.n. Humboldt Van Duzen River Bridge Comment
  HSC7907  Vaccinium ovatum J. Pursell 1964-10-11 10112 Humboldt Old Hwy. 101, 3 mi. N Patricks Point State Park Comment
  HSC7912  Vaccinium ovatum W. R. Rogers 1966-5-1 225 Humboldt Mill Creek Comment
  HSC90226  Vaccinium ovatum L. Watson, J. Meninga Mar 1991 20 Humboldt Near Manilla, Mad River Slough and Dunes N of parking lot, W of trail Comment
  POM232033  Vaccinium ovatum I. L. Wiggins 1930-6-25 4613 Humboldt Sand dunes 2 miles north of Samoa. Comment
  RSA172257  Vaccinium ovatum R. F. Thorne 1957-9-3 19027 Humboldt Patrick's Point State Park. Comment
  UCD118085  Vaccinium ovatum B. L. Kay 1955-4-10 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  CAS-BOT-BC199411  Vaccinium parvifolium Doris K. Kildale 1926-3-25 1628 Humboldt Liscom Hill near Essex, Lower Mad River Comment
  CAS-BOT-BC199414  Vaccinium parvifolium Volney Rattan 1879-6-1 s.n. Humboldt Unspecified Comment
  HSC98120  Vaccinium parvifolium Cara Witte 2007-5-24 113 Humboldt Horse Mountain Botanical Area. Along Forest Service Rd. 6N38. Near Horse Mountain Mine. 1578 Comment
  RSA50145  Vaccinium parvifolium E. K. Balls 1949-7-11 13973 Humboldt 35 miles west of Willow Creek on Hwy 299 to Arcata. 152 Comment
  HSC18950  Vaccinium uliginosum J. O. Sawyer 1968-9-11 729 Humboldt Near Water-dog Lakes 1768 Comment
  UC602497  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1930-7-17 8991 Humboldt meadow at McKay Camp South Fork Mountain 1676 Comment
  HSC48842  Vancouveria hexandra Brad Klipfel 1973-7-15 198 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196350  Vancouveria hexandra J. P. Tracy 1901-6-10 1135 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC503042  Vancouveria hexandra Joseph P. Tracy 1927-6-19 8196 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  CHSC63383  Vancouveria planipetala Vernon H. Oswald 1994-6-29 6363 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 3.5 mi NE of Titlow Hill Rd., 4.6 mi S of Brush Mtn. Lookout Rd., S of Hey. 299 and Willow Creek. 1237 Comment
  JEPS86091  Veratrum californicum var. californicum Wayne Roderick 1966-6-28 Humboldt 9 mi e Bridgeville 609 Comment
  HSC98070  Verbascum thapsus Cara Witte 2007-7-12 528 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 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
  RSA46832  Veronica americana Doris K. Kildale 1926-5-9 1988 Humboldt Kneeland Prairie. Comment
  HSC98564  Veronica arvensis Cara Witte 2008-6-13 723 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  UC582552  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1935-5-25 13832 Humboldt Fort Seward 106 Comment
  HSC78983  Veronica scutellata L. P. Janeway 1984-5-16 795 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. NW of the boat ramp 3 Comment
  JEPS16498  Veronica scutellata Milo S. Baker 1923-8-3 173 Humboldt 6 mi n of Arcata; North Coast trip Comment
  HSC21200  Veronica serpyllifolia subsp. humifusa D. E. Anderson 1965-9-5 4093 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC56064  Veronica serpyllifolia subsp. humifusa G. L. Clifton, Terry Griswold 1979-7-31 11708 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1198063  Veronica serpyllifolia subsp. humifusa Joseph P. Tracy 1935-7-23 14152 Humboldt Trinity Summit, at McKay Prairie Trinity Summit; , McKay Prairie 1584 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
  HSC99734  Vicia americana Jimerson, J. Pageau 1979-5-24 471 Humboldt Near Orleans 226 Comment
  HSC2102  Vicia americana var. americana Elrid H. Spinas 1948-6-16 54 Humboldt Horse Mtn. Comment
  HSC73151  Vicia americana var. americana M. A. Baker 1980-5-18 1304 Humboldt Near Black Mtn. 1006 Comment
  UC1222594  Vicia americana var. americana Harold E. Parks and Joseph P. Tracy 1942-6-23 17231 Humboldt vicinity Box Camp; Trinity Summit 1463 Comment
  RSA168916  Vicia americana var. americana H. E. Parks, Joseph P. Tracy, C. R. Parks 1942-6-23 17231 Humboldt Trinity Summit, vicinity of Box Camp. Comment
  JEPS66158  Vicia benghalensis Joseph P. Tracy 1924-6-28 6701 Humboldt Hydesville; Northern Coast Ranges 91 Comment
  BLMAR723  Vicia gigantea Jennifer Wheeler 2014-4-20 723 Humboldt South Spit/Mike Thompson Wildlife Area, South Jetty Rd on Table Bluff cliff face 3 Comment
  RSA168921  Vicia hirsuta Joseph P. Tracy 1943-7-1 17428 Humboldt Vacant lot, 7th and I Streets, Eureka. (Same place as no. 17474). Comment
  UCR71484  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt North Coast Range, Hwy 299 roadside c. 8 mi. east of Arcata, 9.5 mi. west of Lord Ellis summit Comment
  HSC3229  Vinca major N. R. Waite 1965-5-18 35 Humboldt Along Hwy. 101, W of Humboldt State College campus. Comment
  HSC33174  Viola adunca Thomas W. Nelson 1974-4-20 1182 Humboldt At Elk Head Comment
  HSC89593  Viola adunca var. adunca M. Roantree 1985-5-2 27 Humboldt W side of Trinidad Head, W of trail Comment
  UCSB18722  Viola cuneata Jensen, Karen 1965-4-15 Humboldt 0.2 km. W of U.S. Highway 101, by Miranda turnoff 91 Comment
  HSC48637  Viola glabella Mark Flippo 1978-5-21 81 Humboldt USFS Rd. 8N20 Comment
  CHSC97987  Viola hallii J. Breton; A. Livingston 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. south of Hwy 299 on NF1. 1357 Comment
  POM126626  Viola hallii P. E. Goddard 1906-06 667 Humboldt Lasseck Pk. Comment
  UC668248  Viola lobata subsp. integrifolia Joseph P. Tracy 1936-8-7 15103 Humboldt head of Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1524 Comment
  HSC21827  Viola ocellata J. F. Knezevich 1967-6-1 171 Humboldt 5 mi. E of Willow Creek on Hwy. 299 Comment
  RSA66978  Viola ocellata E. K. Balls 1951-5-9 16514 Humboldt ca. 5 miles S of Richardson's Grove, Highway 101. Comment
  UC668246  Viola praemorsa subsp. linguifolia Joseph P. Tracy 1936-6-17 14950 Humboldt nw slope of Buck Mountain 762 Comment
  HSC99094  Viola praemorsa subsp. praemorsa C. Witte 2007-5-8 7 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  RSA79371  Viola praemorsa subsp. praemorsa E. K. Balls, Lee W. Lenz 1952-5-12 17198 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  UC183611  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1913-6-19 4204 Humboldt in Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC32282  Viola purpurea subsp. purpurea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5615 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC51328  Viola purpurea subsp. purpurea G. L. Clifton, Overton 1979-6-3 3762 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  CHSC24861  Viola sempervirens W. A. Vaccaro 1976-4-4 1 Humboldt Population ca. 300 yds ne of intersection of Cedat St. and W. St., Cutten. 45 Comment
  CHSC24918  Viola sempervirens M. B. Simpson 1976-4-10 21 Humboldt Ca. 1 yd s of Wagon Wheel Rd, ca. .3 mi e of West Haven Dr, ca. 13 mi n of Arcata. 121 Comment
  HSC49693  Viola sempervirens J. O. Sawyer 1977-4-23 2842 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC89434  Viola sempervirens P. A. Daly 1984-5-8 10 Humboldt Trinidad Head 61 Comment
  POM286646  Viola sempervirens Lyman D. Benson 1928-7-8 378 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  UC1198426  Viola sempervirens Joseph P. Tracy 1921-2-27 5416 Humboldt Bear Creek Flat near Pepperwood (along Eel River from South Fork to Scotia); Northern Coast Ranges, Eel River, Bear Creek Flat 60 Comment
  POM92419  Vitis californica L. R. Abrams 1922-6-25 8220 Humboldt 6 miles N of Garberville Comment
  CAS-BOT-BC199803  Vulpia L. R. Abrams 1926-7-11 6050 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  HSC90693  Vulpia bromoides Gail Newton 1982-5-5 3559 Humboldt Elk River Wildlife Area, Eureka. Comment
  UCD93442  Vulpia bromoides Linda M. Barker 1976-6-1 1543 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1103720  Vulpia microstachys var. microstachys Joseph P. Tracy 1926-5-2 7441 1/2 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET202037 Image available Vulpia microstachys var. pauciflora Joeseph P. Tracy 14825 Humboldt French Camp Ridge 1067 Comment
  UC1145196  Vulpia microstachys var. pauciflora Joseph P. Tracy 1939-4-29 16247 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  UC277197  Vulpia microstachys var. pauciflora Joseph P. Tracy 1921-6-12 5818 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC73252  Vulpia myuros M. A. Baker 1980-5-18 1319 Humboldt Near Black Mtn. 1006 Comment
  HSC73581  Vulpia myuros Gail Newton 1980-7-14 1482 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC9943  Vulpia myuros Gene S. Van Horn 1962-5-10 14 Humboldt H.S.U campus, between Administration Building and College Commons, Arcata. 46 Comment
  UCD94718  Vulpia myuros A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3456 Humboldt 2 miles north of Orleans. Klamath River. Comment
  UCD94900  Vulpia myuros A. H. Murphy 1951-5-18 39 Humboldt Cook Ranch, 1/2 mile northwest of Petrolia. Comment
  SEINET251379 Image available Vulpia myuros var. hirsuta Harley P. Chandler 1186 Humboldt Humboldt Bay Comment
  UC1145202  Vulpia myuros var. hirsuta Joseph P. Tracy 1936-6-17 14959 Humboldt nw slope Buck Mountain (Burr Valley); Burr Valley 1066 Comment
  UC62449  Woodwardia fimbriata Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5437 Humboldt near Elk Prairie Comment
  CAS-BOT-BC382926  Wyethia angustifolia Frank W. Gould 1939-5-29 841 Humboldt Horse Mountain 914 Comment
  JEPS32063  Wyethia angustifolia Lincoln Constance 1934-5-29 725 Humboldt Upper Look Prairie (South Fork Eel River, Bull Creek Region); South Fork Eel River, Upper Look Prairie, Bull Creek Region 365 Comment
  UCR40033  Wyethia angustifolia Kenneth Clark 1981-5-24 1393 Humboldt North Coast, Abalone Point, 'Point Delgada Q. 15 Comment
  JEPS28953  Wyethia glabra D. E. Breedlove 1961-7-4 654 Humboldt 13.7 mi w Willow Creek (U.S. Highway 299) 731 Comment
  HSC98513  Wyethia longicaulis Cara Witte 2007-5-21 67 Humboldt White Oak Opening. 1257 Comment
  LA17036  Xerophyllum tenax C. B. Wolf; 1934-6-30 5840 Humboldt 6 mi. from Shelter Cove on rd to Briceland near summit of grade Comment
  UC303043  Xerophyllum tenax Joseph P. Tracy 1926-5-2 7445 Humboldt Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 609 Comment
  CAS-BOT-BC527077  Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp 1066 Comment
  UC1197337  Yabea microcarpa Joseph P. Tracy 1946-6-15 17560 Humboldt lower foothills Horse Mountain 1066 Comment
  HSC79391  Zeltnera muehlenbergii Kenneth Clark 1980-5-10 657 Humboldt Shelter Cove 5 Comment
  HSC15746  Zigadenus micranthus D. E. Anderson 1965-6-1 3779 Humboldt Near Brush Mtn. lookout 1216 Comment



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