Search Results — 2000 specimen records retrieved (1384 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
  HSC74318  Abies concolor Gail Newton 1980-7-20 1602 Humboldt Near Bell Swamps 1463 Comment
  HSC99538  Abies concolor K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 203 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC99689  Abies concolor T. Jimerson, J. Pageau 1979-8-10 714 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC98922  Abies concolor var. lowiana Cara Witte 2008-6-13 719 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  CDA17963  Abies grandis R. Spadoni 1999-9-29 PDR 1142246 Humboldt Northern California; USFS Rd. 1, Blue Lake. 0 Comment
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 Comment
  BLMAR72  Abronia latifolia Jennifer Anthony-Wheeler 1994-5-18 72 Humboldt Samoa/manilla dunes, growing throughout dunes 6 Comment
  CAS-BOT-BC383850  Abronia latifolia Ira L. Wiggins 1930-7-7 4672 Humboldt Near Samoa Comment
  HSC26920  Abronia latifolia Brad Klipfel 1973-7-30 217 Humboldt Near Samoa Comment
  CAS-BOT-BC383851  Abronia latifolia Ira L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, eight mi. north of Arcata Comment
  HSC62913  Abronia latifolia J. M. DiTomaso 1979-5-20 1062 Humboldt Little River State Beach 10 mi. N of Arcata Comment
  RSA0025085  Abronia latifolia Patricia Wilder 1968-8-21 4402 Humboldt Northern coastal arm of Humboldt Bay, ca. 2 miles SW of Samoa, near bay by roadside. Humboldt Bay drainage area. 5 Comment
  CAS-BOT-BC330540  Acer circinatum Doris K. Kildale 1925-6-28 836 Humboldt Lawrence Creek near bridge on Kneeland--Iaqua road 609 Comment
  CAS-BOT-BC330541  Acer circinatum Doris K. Kildale 1927-5-13 3134 Humboldt Redwood Creek at Berry's 289 Comment
  HSC27877  Acer circinatum Clifton Raymond Chesbrough 1973-6-19 75 Humboldt 0.25 mi. from Harris and T Sts. on U St. Comment
  POM161070  Acer circinatum Joseph P. Tracy 1920-10-24 5403 Humboldt Mad River bottom near Blue Lake 61 Comment
  UC170173  Acer glabrum var. glabrum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5821 Humboldt Trinity Summit Comment
  UC170250  Acer macrophyllum Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5435 Humboldt near Elk Prairie (nw California); near Elk Prairie Comment
  CHSC10146  Achillea millefolium J. W. Johnson 1961-8-17 1061 Humboldt Arcata, California. W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC32009  Achillea millefolium J. D. Ackerman 1974-5-26 269 Humboldt 1 mi. S of Trinidad on Scenic Dr. Comment
  SEINET6700495 Image available Achillea millefolium H. E. Parks, S. T. Parks 24246 Humboldt Egg Point, Trinidad 122 Comment
  UC1222918  Achillea millefolium Joseph P. Tracy 1941-8-24 17044 Humboldt near, McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC28584  Achillea millefolium John Thomas Howell 1931-6-17 6718 Humboldt Mouth of Van Duzen River Comment
  HSC4547  Achillea millefolium H. E. Parks, S. T. Parks Aug 1943 24246 Humboldt Egg Point, Trinidad 122 Comment
  JEPS37083  Achillea millefolium Joseph P. Tracy 1933-5-20 12230 Humboldt south of point Cape Mendocino 3 Comment
  RSA254748  Achillea millefolium var. arenicola Thomas W. Nelson 1971-11-11 597 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  UC1126254  Achlys californica A. E. Wieslander 1928-6-14 23 Humboldt Cedar Camp Klamath Forest, Hoopa Quad., Cedar Camp Comment
  CAS-BOT-BC400025  Achlys triphylla Joseph P. Tracy 1933-5-21 12208 Humboldt North Coast Ranges. McClellan Mt. 670 Comment
  RSA12544  Achlys triphylla C. B. Wolf 1934-7-2 5894 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  HSC99382  Achlys triphylla subsp. triphylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 31 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS47754  Achlys triphylla subsp. triphylla Lincoln Constance 1934-6-1 773 Humboldt Bull Cr. rd. between Dyerville Bridge and Bull Creek flat grove (mouth of Bull Cr.); S. Fork Eel R., Bull Creek Region 45 Comment
  SEINET5585534 Image available Achnatherum lemmonii Joseph P. Tracy 1950-1 18787 Humboldt Mail Ridge, north of Harris 7 miles 1036 Comment
  UC526752  Achnatherum lemmonii Joseph P. Tracy 1913-6-22 4260 Humboldt opposite Buck Mountain (Dinsmore's Ranch); valley of Van Duzen River 762 Comment
  UC60151  Achnatherum lemmonii J. Burtt Davy 1899-6-8 5348 Humboldt Bell Springs North Coast Ranges, Bell Springs Comment
  UC249844  Achyrachaena mollis Joseph P. Tracy 1924-6-1 6688 Humboldt near, on Lone Star Road Iaqua Buttes; Northern Coast Ranges 609 Comment
  BLMAR183  Acmispon brachycarpus Donald Hazlett 1994-6-7 183 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC37971  Acmispon micranthus Peter Sorensen 1976-7-15 Humboldt Woodley Island Comment
  HSC98303  Acmispon micranthus D. R. Junell 1965-5-2 41 Humboldt 1 mi. S of Fairhaven on Samoa Peninsula Comment
  UC668267  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp 1402 Comment
  UC1212576  Aconitum columbianum Francia Chisake and Helen Sharsmith 1959-8-22 4752 Humboldt bog at Happy Camp (just over line from Trinity Co.); Inner N. Coast Ranges, Happy Camp 914 Comment
  HSC74411  Aconitum columbianum subsp. columbianum Gail Newton 1980-8-10 2029 Humboldt Near Blake Mtn. 1707 Comment
  CAS-BOT-BC391593  Actaea spicata var. arguta Doris K. Kildale 1926-8-15 2501 Humboldt Willow Creek Canyon 769 Comment
  SEINET200720  Adenocaulon bicolor Joseph P. Tracy 1932-7-17 10650 Humboldt Trinity Summit. Fir woods near Corral Prairie 1580 Comment
  UC1239770  Adiantum X tracyi J. P. Tracy 1895-1 1683 Humboldt cultivated in Eureka (obtained above Pepperwood on Eel River) Comment
  HSC97598  Adiantum aleuticum Steven Lee 2004-4-6 9 Humboldt N side of Jolly Giant Cr. Rd., Redwood Community Forest Comment
  POM347034  Adiantum aleuticum Lyman Benson 1928-7-13 487 Humboldt Weatt Ranger Station 61 Comment
  OBI1088  Adiantum capillus-veneris R. J. Rodin 1938-6-30 s.n. Humboldt Richardson Grove State Park (Redwoods) Comment
  HSC960  Adiantum jordanii D. E. Anderson 1965-5-15 3701 Humboldt About 2 mi. NW of Hoopa on Bald Hills Rd. 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
  UCD128596  Agoseris grandiflora Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mile west of Mud Springs (to Box Camp on west slope of Trinity Summit). Comment
  CAS-BOT-BC29628  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1921-7-24 5859 Humboldt Kneeland Prairie 762 Comment
  UC1222885  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt at n end of town Garberville Comment
  HSC99060  Agoseris heterophylla Cara Witte 2007-5-23 89 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UC1222765  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1950-8-4 19258 Humboldt at, (in Bull Creek State Park at head of Canoe Creek) Grasshopper Peak; Canoe Creek, Bull Creek State Park Comment
  UC249882  Agoseris retrorsa Joseph P. Tracy 1923-6-3 6256 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC249861  Agrostis alba Joseph P. Tracy 1924-8-17 6819 Humboldt wet places in woods Northern Coast Ranges, Trinidad 60 Comment
  SEINET200940  Agrostis densiflora A. A. Beetle 1941-7-8 2884 Humboldt Stone lagoon facing ocean. 6 Comment
  CAS-BOT-BC127282  Agrostis exarata William Arents Silveus 1938-7-9 2983 Humboldt Dyerville. Comment
  CAS-BOT-BC127296  Agrostis exarata Palmer Stockwell 1934-7-13 64 Humboldt Clam Beach. Comment
  CAS-BOT-BC127297  Agrostis exarata Doris K. Kildale 1927-7-23 3796 Humboldt Near Lasseeks [Lassics] Peaks. Haaglin [Hoagland] Lake. Comment
  HSC8790  Agrostis exarata H. E. Parks, S. T. Parks Jun 1952 7553 Humboldt Spruce Cove, Trinidad 61 Comment
  POM126173  Agrostis exarata Joseph P. Tracy 1904-7-31 2127 Humboldt Eureka. 0 Comment
  UC292580  Agrostis exarata H. E. Parks 8302 Humboldt 100 Comment
  UC526885  Agrostis exarata Joseph P. Tracy 1933-7-10 12656 Humboldt Trinidad Northern Coast Region 60 Comment
  UC526891  Agrostis exarata Joseph P. Tracy 1932-6-14 10145 Humboldt mountainside w mouth of South Fork of Trinity River; North Coast Ranges 609 Comment
  UCD52365  Agrostis exarata A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3452 Humboldt 4 miles north of Orleans on road to Somesbar. Comment
  UCD52685  Agrostis hallii H. S. Yates 1936-6-18 5728 Humboldt Near mouth of Litter River. 4 Comment
  CAS-BOT-BC139129  Agrostis oregonensis Joseph P. Tracy 1930-7-16 8995 Humboldt Northern Coast Ranges. South Fork Mountain. At Mckay Camp. 1676 Comment
  RSA10024  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt Bald Mountain; near High Prairie 1067 Comment
  CAS-BOT-BC138635  Agrostis stolonifera Joseph P. Tracy 1927-7-16 8253 Humboldt Region about Humboldt Bay. Mouth of Elk River. 6 Comment
  HSC8810  Agrostis stolonifera C. B. Wolf 1927-8-27 1189 Humboldt Eureka Bay, on the road from Eureka to Arcata. Comment
  UC1100232  Agrostis stolonifera Malcolm A. Nobs and S. Galen Smith 1949-8-3 1168 Humboldt 1 mi s Fields Landing; Eel River Valley Comment
  UCD56339  Agrostis stolonifera A. H. Murphy 1947-7-30 s.n. Humboldt 1.2 mile west of Hydesville, along the Rohnerville Road. Comment
  UC1145071  Agrostis thurberiana Joseph P. Tracy 1939-7-9 16344 Humboldt Snow Camp 1432 Comment
  HSC8869  Aira praecox J. P. Tracy 1932-5-16 10103 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  RSA90195  Aira praecox Joseph P. Tracy 1925-3-24 11669 Humboldt Eureka, North Coast Range. Comment
  UC666928  Allium bolanderi Joseph P. Tracy 1932-6-14 10139 Humboldt mountain slopes w mouth of South Fork of Trinity River; South Fork of Trinity River 609 Comment
  RSA249434  Allium falcifolium D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5600 Humboldt Mt. Lassic and 2 smaller peaks to immediate E. 1768 Comment
  CAS-BOT-BC135842  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5440 Humboldt Along branch road off Swayback Ridge Road ca. 1/2 mile east of junction - Six Rivers National Forest 1371 Comment
  HSC81792  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5935 Humboldt Along old trail to pond, 0.5 mi. N of Alder Spring 1555 Comment
  UC15004  Allium membranaceum Mrs. M. H. Manning 1901-7-14 3 Humboldt trail below Mud Springs; Hupa Comment
  JEPS56397  Allium unifolium Joseph P. Tracy 1917-6-17 4078 Humboldt bluff at Bucksport Northern Coast Ranges, Eureka, Bucksport 0 Comment
  HSC76430  Allium validum Denis Kearns 1981-7-23 397 Humboldt Near Whiteys Peak. 1524 Comment
  HSC58170  Alnus incana subsp. tenuifolia G. L. Clifton, Griswold 1979-8-2 12243 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  CAS-BOT-BC170945  Alnus rhombifolia Doris K. Kildale 1926-12-13 1428 Humboldt Bridgeville on Van Duzen River 228 Comment
  UC275562  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6574 Humboldt Northern Coast Ranges, North Dobbyn Creek North Dobbyn Creek; Northern Coast Ranges, North Dobbyn Creek 152 Comment
  HSC31798  Alnus rubra Steve Selva, Roger Jensen 1974-8-27 82 Humboldt Along Hwy. 299, approx. 10 mi. E of Blue Lake Comment
  HSC3436  Alnus rubra Doris K. Kildale 1926-7-18 2388 Humboldt Orick, Redwood Creek 9 Comment
  RSA2929  Alnus rubra C. B. Wolf 1931-8-28 2366 Humboldt Redwood Highway 4.5 miles no. of Fortuna on road to Eureka. 15 Comment
  RSA46834  Alnus rubra Doris K. Kildale 1928-3-30 4368 Humboldt Big Lagoon. Comment
  UC1197948  Alnus rubra Joseph P. Tracy 1924-8-17 6823 Humboldt Trinidad Northern Coast Ranges 60 Comment
  UC275559  Alnus rubra Joseph P. Tracy 1923-2-25 6150 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 30 Comment
  UCD55903  Alopecurus geniculatus Joseph P. Tracy 1951-6-21 19524 Humboldt Hydesville, back of Everett Beck house (formerly George Fray), bed of former Goose Lake. Comment
  SEINET11674220  Alopecurus geniculatus J. P. Tracy 1951-1 19524 Humboldt back of Everett Beck house (formerly George Fray) bed of former Goose Lake, Hydesville Comment
  JEPS40954  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt along coast in front of s end of Stone Lagoon; Dry Lagoon, Stone Lagoon 3 Comment
  HSC18529  Amelanchier alnifolia var. semiintegrifolia F. B. Plett 1963-4-9 16 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC44355  Amelanchier pallida Brad Klipfel 1975-7-11 700 Humboldt Horse Mtn. Comment
  HSC55636  Amelanchier pallida Overton, Butler 1979-7-24 9662 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  POM117576  Amelanchier pallida Marcus E. Jones 1924-4-28 s.n. Humboldt Sagtorville Comment
  UC1198749  Amelanchier utahensis Joseph P. Tracy 1921-4-30 6022 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  SEINET200930  Ammophila arenaria J. P. Tracy 1918-7-28 5087 Humboldt Humboldt Bay particularly Samoa Comment
  HSC3537  Amsinckia intermedia Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  UC1222278  Amsinckia intermedia Joseph P. Tracy 1948-5-31 18023 Humboldt 2 mi w of Bridgeville (roadside, at the big rock) Comment
  HSC4616  Anaphalis margaritacea Roxana S. Ferris 1937-8-21 9387 Humboldt Shelter Cove Comment
  HSC89471  Anaphalis margaritacea P. A. Daly 1986-3-12 96 Humboldt Trinidad Head, along trail 61 Comment
  CAS-BOT-BC45142  Anaphalis margaritacea Annie M. Alexander; Louise Kellogg 1948-9-3 5572 Humboldt Trinity and Klamath Rivers Comment
  SEINET11855259  Anaphalis margaritacea Unknown 1933-1 Humboldt Eureka Comment
  CAS-BOT-BC391773  Anemone deltoidea Mrs. H. E. Wilder 1924-4-26 s.n. Humboldt Carlotta Comment
  HSC44526  Anemone deltoidea Brad Klipfel 1973-7-1 134 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC391789  Anemone deltoidea Henry M. Pollard 1948-7-31 s.n. Humboldt Under Mt Orleans summit 1828 Comment
  UC1196196  Anemone oregana Joseph P. Tracy 1938-6-13 15899 Humboldt Horse Mtn; in serpentine belt 1432 Comment
  UC562610  Angelica arguta Joseph P. Tracy 1932-7-12 10443 Humboldt Trinity Summit, at Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC1103417  Angelica genuflexa Joseph P. Tracy 1936-8-17 15148 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  CAS-BOT-BC221417  Angelica hendersonii L. R. Abrams 1927-9-1 12065 Humboldt Stone Lagoon Comment
  CHSC31297  Angelica hendersonii Mark Stopher 1980-7-2 122 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  UC582632  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
  CDA38222  Angelica hendersonii T. C. Fuller 1958-6-17 1718 Humboldt Maritime bluff above Oceanhouse, Cape Mendocino. 0 Comment
  JEPS14245  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  HSC56203  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-8-2 12194 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SEINET13943409 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-BC271493  Anisocarpus madioides Doris K. Kildale; L. B. Kildale 1930-5-24 9552 Humboldt Hoopa Valley 152 Comment
  HSC39181  Anisocarpus madioides D. E. Anderson, J. P. Smith 1971-6-28 - 1220 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC169316  Anisocarpus madioides Joseph P. Tracy 1908-6 2878 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC582647  Antennaria rosea Joseph P. Tracy 1935-7-24 14169 1/2 Humboldt Trinity Summit 1828 Comment
  SEINET200721 Image available Antennaria rosea J. P. Tracy 1939-8-6 16397 Humboldt Shore of Big Lagoon 3 Comment
  SEINET7614635 Image available Anthoxanthum occidentale Richard R. Halse 1996-1 5020 Humboldt Redwood National Park ; At junction of Bald Hills Road and Holter Ridge Bike Route 11 miles southeast of US Highway 101 708 Comment
  HSC40341  Anthoxanthum odoratum Linda M. Barker 1976-4-30 1402 Humboldt 3 mi. W of Arcata Comment
  SEINET3918448  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mile west of Barry Road.; 0 Comment
  UC922012  Anthoxanthum odoratum Joseph P. Tracy 1948-6-13 18046 Humboldt Dobbyn Creek 152 Comment
  HSC8941  Anthoxanthum odoratum Paul Shields 1955-6-10 Humboldt Arcata, Humboldt State University campus. Comment
  UC582470  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1933-8-30 13004 Humboldt Horse Mountain; Northern Coast Ranges 1066 Comment
  JEPS83360  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-26 354 Humboldt 9.1 mi s Kneeland Road junction with Mountain View Road (on Kneeland Road) Comment
  UC1196740  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1925-7-12 7203 Humboldt w of South Fork of Trinity River mouth 304 Comment
  HSC73424  Aphanes occidentalis Robert Kirkpatrick, Doug Renwick 1981-4-3 147 Humboldt 2 mi. N of Coastguard Station on Samoa Blvd. 5 Comment
  CAS-BOT-BC392163  Aquilegia formosa Volney Rattan 1879-1-1 s.n. Humboldt Nr Redwood Cr. Comment
  HSC56326  Aquilegia formosa var. truncata Overton, Butler 1979-8-2 12669 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC102925  Arabis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 868 Humboldt Patterson Meadows 1566 Comment
  HSC54209  Arabis glabra Griswold, Butler 1979-7-12 7253 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC57337  Arabis glabra Walter Overton, Butler 1979-7-26 10004 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1341 Comment
  UC1225763  Arabis glabra Joseph P. Tracy 1946-7-7 17610 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC98836  Arabis subpinnatifida Cara Witte 2008-6-2 668 Humboldt 1/2 mile southeast of intersection National Forest 1 and 5N01. 1570 Comment
  OBI20498  Aralia californica Carl B. Wolf 1937-9-8 9302 Humboldt North Coast Range, Bull Crk-Petrolia Rd, 12 mi W of Redwood hwy 457 Comment
  HSC40306  Arbutus menziesii Linda M. Barker 1976-4-30 1405 Humboldt 3 mi. W of Arcata Comment
  JEPS66576  Arbutus menziesii W. L. Jepson 1902-7-10 2004 Humboldt South Fork Trinity River, Martin's Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation South Fork Trinity River; , Martin's Ranch 396 Comment
  HSC98835  Arceuthobium campylopodum Cara Witte 2008-7-25 926 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N36A. Near intersection with Forest Service Road 6N36B. 1355 Comment
  UC1198125  Arceuthobium campylopodum J. P. Tracy 1901-6-26 1060 Humboldt on Humboldt HIll Eureka vicinity 0 Comment
  CAS-BOT-BC24092  Arctostaphylos canescens subsp. canescens L. R. Abrams 1918-6-15 7112 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  CAS-BOT-BC24096  Arctostaphylos canescens subsp. canescens Joseph P. Tracy 1949-8-4 18405 Humboldt Trinity Summit, ridge top one mile west of Mud Springs. 1158 Comment
  CAS-BOT-BC23730  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15439 Humboldt Eureka 45 Comment
  CAS-BOT-BC23733  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Van Duzen River. Comment
  CAS-BOT-BC23819  Arctostaphylos columbiana Joseph P. Tracy 1936-8-2 15075 Humboldt French Camp Ridge 1066 Comment
  HSC7614  Arctostaphylos columbiana J. Pursell 1964-11-1 1116 Humboldt Hwy. 96, 8 mi. S of Orleans Comment
  UCD50761  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1166 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). Comment
  UCD50769  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1178 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  UCD51493  Arctostaphylos columbiana B. L. Kay 1955-3-20 Humboldt 5 miles west of Garberville. Comment
  HSC54574  Arctostaphylos glandulosa Overton, Butler 1979-7-24 9608 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  HSC7631  Arctostaphylos glandulosa Doris K. Kildale 1927-1-30 2899 Humboldt Big Lagoon, flat on S side of Lagoon Comment
  RSA246945  Arctostaphylos glandulosa subsp. glandulosa R. F. Thorne, Percy C. Everett 1965-8-5 35133 Humboldt Peak of Mt. Chamisal. 701 Comment
  UC1222638  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1950-8-4 19251 Humboldt Grasshopper Peak Bull Creek State Park Comment
  SD42559  Arctostaphylos hispidula Carl B. Wolf 1937-8-13 9226 Humboldt 8.0 miles east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC100093  Arctostaphylos manzanita J. P. Smith, J. O. Sawyer 2010-3-22 12710 Humboldt Along Hwy. 36, E of Dinsmore. 734 Comment
  UCD52077  Arctostaphylos manzanita Joseph P. Tracy 1939-4-29 16263 Humboldt Orleans. 121 Comment
  UCSB11333  Arctostaphylos manzanita Nelson, R. 1950-7-26 Humboldt 0.5 mile northwest of Neafus Peak 762 Comment
  RSA0049660  Arctostaphylos manzanita subsp. manzanita Dean Wm. Taylor 2011-5-4 21118 Humboldt Larabee Valley, along Highway 36 about 1 mile east of the eastern end of the valley at the bridge for the Little Van Duzen River 701 Comment
  SEINET2031084 Image available Arctostaphylos media Joseph P. Tracy 1923-1 6171 Humboldt Around Humboldt Bay; Table Bluff 61 Comment
  CAS-BOT-BC40028  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13155 Humboldt French Camp Ridge 1066 Comment
  HSC98732  Arctostaphylos patula Cara Witte 2008-7-2 817 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  RSA12763  Arctostaphylos uva-ursi C. B. Wolf 1930-10-28 6114 Humboldt Samoa. 15 Comment
  UC1225935  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17499 Humboldt Eureka 45 Comment
  UCD52028  Arctostaphylos uva-ursi Roman Gankin 1965-8-6 554 Humboldt Sand dunes west of road. 1.3 miles south of Samoa, Samoa Peninsula, Humboldt County, California. Comment
  UCD52032  Arctostaphylos uva-ursi Joseph P. Tracy 1940-10-3 16740 Humboldt Near Samoa, on Humboldt Bay. Comment
  UCD52047  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1147 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  RSA1903  Arctostaphylos uva-ursi var. coactilis C. B. Wolf 1930-10-28 1035 Humboldt Samoa. 15 Comment
  HSC73249  Arctostaphylos viscida M. A. Baker 1980-5-18 1313 Humboldt Near Black Mtn. 1006 Comment
  SEINET7253518 Image available Armeria maritima subsp. californica Joseph P. Tracy 1927-1 8115 Humboldt Trinidad 3 Comment
  HSC74646  Arnica cordifolia M. A. Baker 1980-5-17 1215 Humboldt Near Le Perron Peak 792 Comment
  UC176419  Arnica cordifolia Joseph P. Tracy 1913-6-17 4177 Humboldt at summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  CAS-BOT-BC82425  Arnica discoidea Joseph P. Tracy 1935-7-23 14154 Humboldt Trinity Summit, lower end of Brett Hole 1584 Comment
  HSC63286  Arnica discoidea M. A. Baker 1979-6-29 955 Humboldt Hopkin's Creek. 760 Comment
  HSC75557  Arnica discoidea J. O. Sawyer, R. J. Cole 1977-7-3 3005 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC58598  Arnica latifolia G. L. Clifton, Griswold 1979-7-25 10755 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  SEINET3098738  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie 1520 Comment
  JEPS36982  Artemisia douglasiana W. L. Jepson 1936-8-12 17886 Humboldt Philipsville South Fork Eel River, Philipsville Comment
  UC1222998  Artemisia douglasiana Joseph P. Tracy 1947-8-24 17892 Humboldt Meadow at Box Camp; Trinity Summit 1463 Comment
  RSA167208  Artemisia douglasiana Joseph P. Tracy 1947-8-24 17892 Humboldt Trinity Summit- Meadow at Box Camp 1463 Comment
  SEINET11853294  Artemisia douglasiana J. P. Tracy 1947-1 17892 Humboldt Trinity Summit at Box camp 1463 Comment
  CHSC55838  Artemisia pycnocephala L. P. Janeway 1987-7-31 2540 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of the Eureka City Airport. 3 Comment
  RSA24049  Artemisia pycnocephala C. B. Wolf 1940-11-10 9782 Humboldt Coast south of mendocino- 1.8 mi. N of where road turns inland to Petrolia. 8 Comment
  UC164826  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt opp. Eureka (sand hills of ocean beach); Samoa Comment
  CAS-BOT-BC97244  Artemisia suksdorfii A. A. Heller 1924-7-25 13844 Humboldt near the beach at Agate Beach near Trinidad Comment
  SEINET10725832  Artemisia suksdorfii Harold E. Parks Parks 24178 Humboldt Common on sand dunes near ocean. Comment
  SEINET4343124  Artemisia tridentata subsp. wyomingensis Leila M. Shultz, John S. Shultz 1987-9-17 10750 Humboldt South of I-80, mile post 200 Comment
  HSC55680  Aruncus dioicus var. acuminatus Overton, Butler 1979-7-26 9933 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  HSC56131  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-8-1 11947 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UCD112908  Aruncus dioicus var. acuminatus Joseph P. Tracy 1932-7-18 10708 Humboldt Klamath Mountains. Trinity Summit. Head of Brett Hole. 1828 Comment
  JEPS45626  Aruncus dioicus var. pubescens Joseph P. Tracy 1916-6-25 4749 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  RSA20965  Aruncus sylvester Carl B. Wolf 1937-9-13 9339 Humboldt N coast range, E Fork of Willow Creek at Forest Service Camp. 457 Comment
  HSC100257  Arundo donax J. P. Smith 2009-8-3 12642 Humboldt Along Hwy. 254 in Pepperwood. 51 Comment
  HSC24387  Asarum caudatum J. O. Sawyer 1970-6-24 2257 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UC1198119  Asarum caudatum Joseph P. Tracy 1925-3-15 6942 Humboldt Blue Slide; on Van Duzen River 91 Comment
  UC494106  Asarum caudatum H. E. Parks 1931-3-24 918 Humboldt Near Orick Comment
  CAS-BOT-BC65944  Aspidotis densa L. R. Abrams 1918-6-15 7123 Humboldt Brannan Mt near Willow Creek 1371 Comment
  SEINET200793 Image available Aspidotis densa J. P. Tracy 1942-6-23 17265 Humboldt Water Dog Lake; Trinity Summit 1830 Comment
  CDA30679  Aster chilensis M. K. Beyers, I. Shepardson 2009-9-13 252 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  RSA167195  Aster occidentalis Joseph P. Tracy 1941-8-24 17040 Humboldt South Fork Mountain. Near McKay camp. 1677 Comment
  NY5297  Astragalus agnicidus H. Tosten 1931-6-7 s.n. Humboldt Near Bear Buttes, 4 mi S of Miranda. Local on Tosten and Pierce Ranch. Comment
  CAS-BOT-BC193142  Astragalus rattanii var. rattanii Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  RSA135343  Astragalus rattanii var. rattanii Volney Rattan 1884-1 s.n. Humboldt Big Creek. Comment
  UC1174493  Astragalus umbraticus Volney Rattan 1878-1 Humboldt Comment
  HSC48318  Asyneuma prenanthoides Brad Klipfel 1973-8-3 309 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99540  Athyrium filix-femina K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 205 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC54544  Athyrium filix-femina var. cyclosorum Overton, Butler 1979-7-23 9531 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC35725  Athyrium filix-femina var. cyclosorum Thomas W. Nelson 1975-1-16 1748 Humboldt E of HSU campus Comment
  HSC6517  Athysanus pusillus D. E. Anderson 1963-5-19 2470 Humboldt Kneeland Area Comment
  UC1198296  Athysanus pusillus Joseph P. Tracy 1937-5-16 15283 Humboldt nw of Harris 914 Comment
  HSC95384  Atriplex prostrata Andrea Pickart 2002-8-8 191 Humboldt Arcata Marsh at end of I st. 0 Comment
  HSC9010  Avena fatua E. W. Styskel 1964-4-3 55 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  UC303081  Azolla filiculoides Joseph P. Tracy 1904-9-11 2143 Humboldt Fields Landing; Northern Coast Region 30 Comment
  SEINET10668635  Baccharis Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-8-6 Bennett 486 Humboldt Collected by Hwy. 101, N side of Orick. Rocky area, densely forested by river. 30 Comment
  HSC13133  Baccharis pilularis subsp. consanguinea Steve Dorei 1970-10-9 33 Humboldt HSC campus, Arcata, near Fisheries water tank on Union St. Comment
  HSC35033  Balsamorhiza deltoidea Thomas W. Nelson, James Nelson 1975-5-24 1850 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC275273  Barbarea orthoceras Joseph P. Tracy 1923-6-17 6272 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC145786  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of South Yager Creek. 762 Comment
  CAS-BOT-BC145787  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of South Yager Creek. 762 Comment
  SEINET5707799 Image available Bellis perennis Suzanne E. May 1967-1 34 Humboldt On State Highway 36, 1 mile west of Bridgeville.; Bridgeville 183 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
  UC1051579  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain in meadow near High Prairie; Northern Coast Ranges, Bald Mountain, nr High Prairie 1066 Comment
  UC56724  Berberis aquifolium Harley P. Chandler June, 1901 1277 Humboldt Hupa Indian Reservation 1097 Comment
  HSC35612  Berberis nervosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2024 Humboldt Just E of Redwood National Park along Bald Hills Rd. Comment
  CAS-BOT-BC75809  Berberis pinnata L. B. Kildale 1930-7-7 10260 Humboldt Chaparral Mountain at Bug Creek. 914 Comment
  HSC55138  Bistorta bistortoides G. L. Clifton, Griswold 1979-8-1 12017 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  POM118334  Blechnum spicant Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC66271  Blechnum spicant A. M. Showalter 1925-8-12 s.n. Humboldt west of Orick Comment
  POM256473  Boisduvalia glabella Joseph P. Tracy 1938-7-5 16004 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  HSC24555  Boschniakia hookeri Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  HSC64840  Boykinia occidentalis J. P. Smith 1973-5-26 6861 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CAS-BOT-BC420272  Boykinia occidentalis L. R. Abrams 1916-7-21 6149 Humboldt Grizzly Creek Comment
  UC725902  Boykinia occidentalis A. A. Heller 1937-6-11 15893 Humboldt along U.S. Highway #101 between Bishop Pine Lodge and Big Lagoon; between Bishop Pine Lodge and Big Lagoon Comment
  CAS-BOT-BC106293  Brickellia californica J. Clausen 1932-9-19 696 Humboldt Dyerville, Eel River, in dry river bed. Comment
  UC581795  Brickellia californica Joseph P. Tracy 1931-10-18 9736 Humboldt Camp Grant, along Eel River, 2-5 mi e of the South Fork Eel River 45 Comment
  CDA1775  Briza maxima T. C. Fuller 1966-5-24 14710 Humboldt 2 miles north of Trinidad. 0 Comment
  CHSC31284  Briza maxima Mark Stopher 1980-5-16 68 Humboldt Along Hwy 101 near jct with Elk River, s of Eureka. Comment
  HSC33766  Briza maxima John S. Palmer 1975-5-24 368 Humboldt Off Samoa Blvd., across from boat landing Comment
  HSC45221  Briza maxima M. Alcasas 1978-5-28 110 Humboldt E end of Myrtle Ave., Eureka 8 Comment
  HSC79462  Briza maxima Kenneth Clark 1980-5-10 661 Humboldt Access road to Shelter Cove 30 Comment
  HSC9093  Briza minor R. Spellenberg 1965-6-13 1108 Humboldt Along highway, 2 mi. S of Hoopa Comment
  SEINET4183111 Image available Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton 30 Comment
  HSC100548  Brodiaea capitata Carl C. Marshall 1885-1 4 Humboldt Table Bluff. Comment
  UC15007  Brodiaea elegans subsp. elegans Joseph Burtt Davy 1899-6-11 5464 Humboldt near Elk Prairie Comment
  HSC3019  Brodiaea elegans subsp. elegans David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  UC1222693  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-6-23 18867 Humboldt 3 mi ne Alderpoint (at creek); Dobbyn Creek 213 Comment
  SEINET11675365  Bromus carinatus J. P. Tracy 1951-1 19569 Humboldt Snow Camp-Twin Lakes vicinity Comment
  HSC9142  Bromus carinatus var. carinatus W. F. Nickel 1965-3-17 Humboldt Humboldt State College campus behind College Elementary School. Comment
  SEINET201047 Image available Bromus carinatus var. carinatus Joseph P. Tracy 1926-5-2 7424 Humboldt Roadside weed,Trinity River Valley, near the South fork. 183 Comment
  UC526863  Bromus carinatus var. carinatus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9047 Humboldt near Blake Lookout (Northern Coast Ranges. South Fork Mountain, along summit); Northern Coast Ranges. South Fork Mountain 1737 Comment
  HSC32480  Bromus commutatus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5720 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC552679  Bromus commutatus Joseph P. Tracy 1935-5-25 13873 Humboldt Fort Seward 106 Comment
  HSC9289  Bromus diandrus N. R. Waite 1965-5-18 33 Humboldt W edge of Humboldt State University campus Comment
  UC1714488  Bromus diandrus Joseph P. Tracy 1916-5-31 4702 Humboldt along Eel River from South Fork to Scotia, Stitz Creek Stitz Creek; Northern Coast Ranges, Eel River, Stitz Creek 60 Comment
  HSC26275  Bromus hordeaceus Thomas W. Nelson 1971-5-31 465 Humboldt 915 Comment
  UC188940  Bromus secalinus Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5688 Humboldt North Western California, Hoopa Valley Hoopa Valley; North Western California, Hoopa Valley Comment
  UCD59709  Bromus sterilis Joseph P. Tracy 1950-6-15 18776 Humboldt Mail Ridge, north of Harris 5 miles. 944 Comment
  JEPS72925  Bromus vulgaris Lincoln Constance 1934-6-7 830 Humboldt Bull Creek Region, South Fork Eel River, Johnson Prairie Johnson Prairie; Bull Creek Region, South Fork Eel River, Johnson Prairie Comment
  RSA10035  Bromus vulgaris Joseph P. Tracy 1926-5-2 7427 Humboldt Trinity River Valley, near the south fork. Comment
  UC673075  Cakile edentula Joseph P. Tracy 1940-10-3 16739 Humboldt near Samoa (on Humboldt Bay); Humboldt Bay 3 Comment
  UC1103289  Calamagrostis canadensis Joseph P. Tracy 1935-7-27 14290 Humboldt McKay Prairie Trinity Summit (along creek) 1584 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
  SEINET200617 Image available Calamagrostis rubescens Joseph P. Tracy 1938-7-17 16082 Humboldt Local. Garberville. Comment
  UC1103551  Calandrinia ciliata Joseph P. Tracy 1904-4-24 2026 Humboldt sand dunes of ocean beach at Humboldt Bay; Northern Coast Region Comment
  UC176676  Calandrinia ciliata Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3580 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC100604  Calandrinia menziesii Carl C. Marshall Jun 1887 472 Humboldt Throughout Humboldt County. Comment
  UCR199655  Callitriche heterophylla subsp. bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35345 Humboldt Northwestern; Outer North Coastal region, along Hwy 101 about 3 miles N of Eureka 2 Comment
  UC1922744  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, P. Everett 1965-8-9 35345 Humboldt Along Hwy. 101 about 3 mi. N or Eureka. Comment
  CAS-BOT-BC80389  Calocedrus decurrens Doris K. Kildale 1926-8-15 2540 Humboldt Hoopa Mountain 579 Comment
  HSC76306  Calocedrus decurrens Teresa Prendusi 1981-7-9 224 Humboldt Near Cedar Camp 1256 Comment
  CAS-BOT-BC488459  Calochortus amabilis Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  JEPS17804  Calochortus amabilis Joseph P. Tracy 1916-6-19 4711 Humboldt Laribee Creek, at Bosworth's Northern Coast Ranges 457 Comment
  UC1197676  Calochortus amabilis Joseph P. Tracy 1930-6-15 8749 Humboldt Bosworth's Larrabee Creek 457 Comment
  HSC48760  Calochortus coeruleus Brad Klipfel 1973-6-10 74 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1103462  Calochortus coeruleus Joseph P. Tracy 1930-7-17 9027 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  SEINET12051376  Calochortus coeruleus F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -315 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Road (USFS Rd. 411) 150 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
  SEINET6879028  Calochortus tolmiei W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  UC180238  Caltha biflora Joseph P. Tracy 1914-7-4 4525 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges. 1066 Comment
  CAS-BOT-BC175758  Caltha leptosepala Carl B. Wolf 1934-7-2 5891 Humboldt Snow Camp (mts. E. of Korbel). Near Small Lake 1371 Comment
  HSC75826  Caltha leptosepala Bill Copeland 1980-6-26 323 Humboldt Near Snow Camp Lake 1372 Comment
  CAS-BOT-BC273313  Calycadenia fremontii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC273311  Calycadenia fremontii H. M. Hall 1930-10-1 12922 Humboldt Trinity River at Willow Creek Comment
  UC1199384  Calycadenia truncata Joseph P. Tracy 1925-7-12 7201 Humboldt South Fork Trinity River near; Trinity River Valley 304 Comment
  RSA33968  Calycadenia truncata subsp. scabrella Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat. Comment
  SEINET3889828  Calypso bulbosa Rick Lundquist 1979-1 Humboldt Comment
  UC1196473  Calypso bulbosa Mabel Griffin 1927-4-23 Humboldt Dows Prairie, at top of North Hill Dows Prairie; , North Hill 60 Comment
  HSC70228  Calyptridium monospermum M. A. Baker 1980-6-8 1891 Humboldt Near Buck Flat. 1554 Comment
  UC1368471  Calyptridium monospermum R. K. Gierisch and D. H. Esplin 1969-1-7 3528 Humboldt Grouse Mountain; Six Rivers Forest, Grouse Mountain 1584 Comment
  HSC23736  Calystegia purpurata Tim Baroni 1971-7-5 107 Humboldt 8 mi. E of Petrolia Comment
  SEINET12343673  Calystegia purpurata J. P. Tracy 1950-6-8 18769 Humboldt Near Petrolia, 2 mi down river Comment
  POM278808  Calystegia soldanella Lyman Benson 1928-7-10 444 Humboldt Clam Beach, Trinidad. 9 Comment
  SD42477  Calystegia soldanella Carl B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  UC146194  Camassia quamash Joseph P. Tracy July 1908 2903 Humboldt near Low Gap (between Van Duzen and Mad Rivers, opposite Dinsmore's); Northern Coast Ranges 609 Comment
  HSC74419  Camassia quamash subsp. linearis Gail Newton 1980-8-10 2041 Humboldt Near Blake Mountain. 1707 Comment
  UC144060  Camissoniopsis cheiranthifolia subsp. cheiranthifolia J. P. Tracy 1909-7-18 3017 Humboldt opp. Eureka (sand hills of ocean beach); Samoa Comment
  SEINET10462973  Campanula prenanthoides Overton 1979-7-24 OVERTON 9693 Humboldt Near Friday Camp, on the Willow Creek quad., close to the town of Willow Creek 1250 Comment
  SEINET10462965  Campanula prenanthoides Aven Nelson, Ruth A. Nelson 1977-7-1 Nelson 3562 Humboldt Along north slope of ridge between Bear & Blanket Creeks. T1S R5E SEC.25 1494 Comment
  SEINET10462970  Campanula prenanthoides Sandborg 1968-7-19 SANDBORG 54 Humboldt Bluff Creek near Notice Creek, forest floor near road below Notice Creek bridge. T10N R4E Comment
  UC1021825  Campanula prenanthoides J. M. Tucker 1948-9-3 1859 Humboldt road bank on Friday Ridge Road just below Black Rock ((junction of Friday Ridge Road and the Horse Mountain-Grouse Mountain Road)) Comment
  UC602559  Campanula scouleri Joseph P. Tracy 1926-6-27 7691 Humboldt Horse Mountain 1219 Comment
  RSA12439  Campanula scouleri C. B. Wolf 1934-7-2 5854 Humboldt 2 miles from Bald Mt. on road to Korbel. Comment
  SEINET10463750  Campanula scouleri Tracy 1914-9-6 TRACY 4621 Humboldt Bald Mountain, between High Prairie and Snow Camp 1067 Comment
  SEINET10463753  Campanula scouleri Wolf 1934-7-2 WOLF 5854 Humboldt 2 miles from Bald Mountain on road to Korbel 762 Comment
  SEINET10840056  Campanula scouleri Tracy 1926-6-27 TRACY 7691 Humboldt Horse Mountain, shaded banks in Fir woods. 1219 Comment
  UC162969  Cardamine breweri J. P. Tracy 1905-4-23 2169 Humboldt immediate vicinity Eureka; vicinity Eureka 0 Comment
  UC275268  Cardamine breweri Joseph P. Tracy 1923-6-24 6364 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, , nr High Prairie 1066 Comment
  UC161552  Cardamine breweri Joseph P. Tracy 1905-4-16 2163 Humboldt region about Humboldt Bay (at Bucksport); Northern Coast Region, , Bucksport 0 Comment
  HSC26340  Cardamine californica Thomas W. Nelson 1971-4-4 365 Humboldt Above the S Fork of the Van Duzen River and beside Hwy. 36 at the bridge over the Van Duzen River Comment
  HSC6683  Cardamine californica Lincoln Constance, R. C. Rollins 1942-5-20 2998 Humboldt Eel River, 1 mi. N of Pepperwood 46 Comment
  HSC95664  Cardamine californica Kevin Thomas 2004-3-6 1 Humboldt Along beach access trail to College Cove Comment
  SDSU2479  Cardamine californica D. F. Howe 1963-5-26 3554 Humboldt 3.7 miles east of Orick on Bald Hill road. 488 Comment
  UC162350  Cardamine californica J. P. Tracy 1905-2-26 2145 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 Comment
  POM214829  Cardamine californica var. integrifolia Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  CAS-BOT-BC37896  Cardamine oligosperma J. P. Tracy 1901-4-7 1009 Humboldt Immediate vicinity of Eureka. 152 Comment
  CAS-BOT-BC37892  Cardamine oligosperma Doris K. Kildale 1927-3-24 2950 Humboldt Fleener Creek. Comment
  HSC6641  Cardamine oligosperma Gerald T. Rood 1962-5-11 3 Humboldt Kneeland Rd., 0.25 mi. E of Barry Rd. Comment
  UC161490  Cardamine pensylvanica Joseph P. Tracy 1905-4-16 2164 Humboldt region about Humboldt Bay (near Bucksport); Northern Coast Region, Humboldt Bay region, nr Bucksport 0 Comment
  CAS-BOT-BC384768  Cardionema ramosissimum Ira L. Wiggins 1930-7-11 4687 a Humboldt Sand dunes near Samoa Comment
  SEINET11861099  Carduus pycnocephalus J. P. Tracy 1947-6-8 17703 Humboldt 0.5 mi W of town, vicinity of Carlotta 30 Comment
  UC726350  Carex A. A. Heller 1930-8-4 14995 Humboldt Little River Comment
  UC197208  Carex abrupta Joseph P. Tracy 1913-6-13 4104 1/2 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET10349889  Carex aquatilis Marc Baker 1980-7-22 3129 Humboldt Near Crogan Hole 152 Comment
  HSC70473  Carex aquatilis var. dives J. P. Tracy 1906-5-13 2459 Humboldt Humboldt Bay, Ocean Beach Comment
  SEINET10588473  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 Tracy 13504 Humboldt Dense clumps in wettest places. Dry Lagoon - along coast in front of South End of Stone Lagoon. 3 Comment
  CAS-BOT-BC18009  Carex arcta Joseph Prince Tracy 1934-7-13 13389 Humboldt Dow's Prairie. 60 Comment
  UC303008  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt near Redwood House (on road to head of Yager); Northern Coast Ranges 609 Comment
  CAS-BOT-BC19216  Carex barbarae Henry M. Pollard 1948-7-29 s.n. Humboldt Near Woodson Mine - Near Orleans. Comment
  CHSC45707  Carex barbarae L. P. Janeway 1984-4-28 750 Humboldt Along W side of S Fk Eel River at Butte Cr; across the river from Miranda. 67 Comment
  POM273208  Carex barbarae Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  RSA364621  Carex bolanderi Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans. Comment
  POM313080  Carex cusickii Malcolm A. Nobs, S. Galen Smith 1949-8-3 1197 Humboldt Southern outskirts of Eureka Comment
  UC562255  Carex densa Joseph P. Tracy 1936-6-3 14848 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1152053  Carex echinata subsp. echinata Joseph P. Tracy 1950-7-25 19067 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC103369  Carex feta Thomas W. Nelson, Jane Nelson 1982-7-11 7115 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  POM126509  Carex feta Joseph P. Tracy 1921-6-12 5828 Humboldt Butler Valley. 152 Comment
  CAS-BOT-BC20012  Carex feta H. D. Ripley; R. C. Barneby 1945-6-16 6823 Humboldt NW of Harris. 883 Comment
  SEINET11630974  Carex feta J. P. Tracy 1950-1 19010 Humboldt Buck Mountain, 3 mi S of Burr Valley, on Albee Road 1158 Comment
  CAS-BOT-BC20875  Carex globosa Joseph Prince Tracy 1932-4-23 9832 Humboldt North Coast Ranges. Englewood. 91 Comment
  JEPS25963  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Northern Coast Ranges. Phillipsville, facing South Fork of Eel River Comment
  UC562660  Carex harfordii Joseph P. Tracy 1935-7-14 14087 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC76807  Carex harfordii L. P. Janeway 1982-6-17 10 Humboldt 305 Comment
  SEINET7561248 Image available Carex harfordii David Castaner 1989-5-28 8067 Humboldt Patrick Point SP Area, Redwood Forest. Comment
  HSC70164  Carex hendersonii Thomas W. Nelson, Jane P. Nelson 1978-6-10 4416 Humboldt Behind the Seventh-Day Adventist Church on F St. 61 Comment
  CAS-BOT-BC28163  Carex hoodii Joseph Prince Tracy 1932-7-11 10410 Humboldt trinity Summit, Open places at Corral Prairie. Comment
  CHSC90280  Carex jonesii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8601 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  HSC102230  Carex jonesii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1151 Humboldt Patterson Meadows 1555 Comment
  UC562263  Carex jonesii Joseph P. Tracy 1935-7-26 14257 Humboldt Water Dog Lakes Trinity Summit 1828 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
  UC562285  Carex laeviculmis Joseph P. Tracy 1932-7-16 10635 Humboldt Corral Prairie Trinity summit 1584 Comment
  CAS-BOT-BC31468  Carex leptopoda W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula. Comment
  HSC48394  Carex leptopoda Brad Klipfel 1973-6-10 150 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET7467750 Image available Carex leptopoda J. A. Churchill 1984-5-29 8069 Humboldt entrance road to Cal-Barrel Area Comment
  HSC58794  Carex luzulina Overton, Butler 1979-7-31 11460 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  BLMAR69  Carex lyngbyei Jennifer Anthony-Wheeler 1994-5-18 69 Humboldt Samoa/manilla dunes, growing intermittently wet area in the Samoa Dunes rec. area 6 Comment
  HSC93773  Carex lyngbyei Gordon Leppig 1996-5-17 333 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, Butcher Slough, E side about 20 m N of Interpretive Center Parking lot, just W of South I St. 1 Comment
  CAS-BOT-BC146625  Carex mendocinensis Joseph P. Tracy 1935-7-14 14086 Humboldt Grouse Mountain 1524 Comment
  UC249755  Carex multicostata Joseph P. Tracy 1924-5-4 6664 Humboldt Bridgeville Northern Coast Ranges 243 Comment
  UCD140669  Carex multicostata Don Hagar 1957-8-27 s.n. Humboldt Red Cap Prairie, Trinity Summit area, around 15 miles east of Hoopa. Comment
  CHSC40158  Carex nudata L. P. Janeway 1983-6-22 322 Humboldt Along the north edge of Mad River, near jct of North Bank Road and Hunts Drive. 4 Comment
  UCR52378  Carex nudata L. P. Janeway 1984-4-28 751 Humboldt Garberville Q., West side of the South Fork of Eel River at Butte Creek, across the river from Miranda. 75 Comment
  SEINET10711630  Carex nudata A. Arthur Heller 1923-7-10 Heller 13795 Humboldt Wet soil along the Eel River between Scotia and Pepperwood in the redwood belt. Comment
  CHSC42989  Carex obnupta L. P. Janeway 1987-7-31 2548 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 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
  CAS-BOT-BC119264  Carex ovalis Joseph Prince Tracy 1939-7-9 16315 Humboldt Bald Mt. Abundant in ditch 1 mi N of Murphy Meadows. 914 Comment
  CAS-BOT-BC119224  Carex pachystachya Joseph Prince Tracy 1935-6-23 13984 Humboldt French Camp Ridge. 1066 Comment
  UC709399  Carex pachystachya Joseph P. Tracy 1938-7-18 16083 Humboldt Eureka 30 Comment
  HSC45474  Carex pachystachya Thomas W. Nelson, Jane P. Nelson 1978-7-2 4409 Humboldt Along road to Lost Lake, branch off FS 2S08 near Pine Mtn. 1433 Comment
  JEPS109249  Carex subfusca D. W. Taylor 2007-7-11 20161 Humboldt Six Rivers National Forest, Horse Mountain, Titlow Hill Road at the junction with Forest Road 6N18. Comment
  CAS-BOT-BC116678  Carex subfusca Joseph Prince Tracy 1935-7-23 14141 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 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
  JEPS75415  Carex tumulicola W. L. Jepson 1932-7-26 16415 Humboldt Bull Creek 106 Comment
  UC562336  Carex tumulicola Harold E. Parks and Joseph P. Tracy 1935-6-16 11270 Humboldt lower nw slopes Buck Mt. 792 Comment
  CAS-BOT-BC115534  Carex unilateralis Joseph Prince Tracy 1946-5-30 17539 Humboldt Wet gully in grassland near Bridgeville. 457 Comment
  CAS-BOT-BC114983  Carex viridula Robert F. Thorne; P. Everett 1965-8-7 35198 Humboldt Big Lagoon at edge of bog at S end of Lagoon. 1 Comment
  HSC76379  Carex viridula L. P. Janeway 1982-8-7 116 Humboldt Dry Lagoon, middle of lagoon 3 Comment
  RSA167257  Castilleja affinis Joseph P. Tracy 1950-6-15 18799 Humboldt Mail Ridge, north of Harris 7 miles Comment
  HSC103410  Castilleja affinis subsp. affinis Kaylea Eickhoff, Cara M. Witte 2005-6-10 9 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  HSC20571  Castilleja affinis subsp. litoralis R. E. Hafenfeld 1965-5-9 29 Humboldt 1/2 mi. S of Squashan Cr. Jct. Gold Bluff Beach Rd. Comment
  HSC20579  Castilleja affinis subsp. litoralis D. J. Jager 1965-5-12 67 Humboldt 0.5 mi. N of Trinidad on bluff above the ocean 46 Comment
  JEPS88811  Castilleja affinis subsp. litoralis T. I. and F. M. Chuang 1991-7-8 7874 Humboldt ca 2 mi sw Orick Comment
  HSC23104  Castilleja applegatei subsp. pinetorum D. E. Anderson 1965-5-8 3638 Humboldt N of Willow Creek along Rd. on E side of Trinity River Comment
  JEPS24219  Castilleja applegatei subsp. pinetorum Peter H. Raven with R. Snow 1958-7-20 13636 Humboldt 2.0 mi s junction of Titlow Hill and Friday Ridge roads (near Grouse Mountain) Comment
  HSC82541  Castilleja arachnoidea Thomas W. Nelson 1979-7-11 5000 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC101746  Castilleja attenuata J. P. Smith, J. O. Sawyer 2010-5-2 12810 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  UC1173698  Castilleja attenuata Joseph P. Tracy 1939-4-29 16255 Humboldt Orleans 121 Comment
  SEINET12288574  Castilleja douglasii H. P. Chandler 1901-1 1485 Humboldt North Coast Ranges, Klamath River 427 Comment
  SEINET4095680  Castilleja exserta O. M. Clark 1932-1 5341 Humboldt North Eureka. Comment
  HSC101997  Castilleja miniata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 896 Humboldt Patterson Meadows 1555 Comment
  HSC56190  Castilleja miniata Gilbert Muth 1979-8-1 12128 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC41275  Castilleja pruinosa Brad Klipfel 1974-6-25 427 Humboldt Horse Mtn. Comment
  HSC70695  Castilleja pruinosa Gail Newton 1980-7-15 1558 Humboldt Near Sims Mtn. 1311 Comment
  UC1196746  Castilleja pruinosa Joseph P. Tracy 1942-6-23 17227 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC1502111  Ceanothus R. Sutherland 1976-10-30 1 .30-76 Humboldt Pt. Delgada Quad. 624 Comment
  UC1502114  Ceanothus R. Sutherland 1976-5-11 7 .11.76 Humboldt just outside Sec 32 Pt. Delgado Quad.; Pt. Delgada Quad. 609 Comment
  HSC41322  Ceanothus arcuatus Brad Klipfel 1974-9-2 525 Humboldt Horse Mtn. Comment
  CAS-BOT-BC49316  Ceanothus cuneatus L. B. Kildale 1930-9-21 10229 Humboldt Bluff Creek trail to Fish Lake Comment
  HSC36676  Ceanothus foliosus var. foliosus R. Sutherland 1975-7-7 1 .7775 Humboldt Bank of Eubanks Creek 259 Comment
  CAS-BOT-BC63682  Ceanothus integerrimus L. B. Kildale 1927-5-15 3301 Humboldt Petrolia. Comment
  HSC73241  Ceanothus integerrimus M. A. Baker 1980-5-18 1338 Humboldt Near Black Mtn. 792 Comment
  HSC98605  Ceanothus integerrimus Cara Witte 2007-6-5 209 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.25 miles south of intersection with 5N04. 1405 Comment
  RSA95358  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC51702  Ceanothus papillosus W. R. Dudley 1899-10-30 s.n. Humboldt Head of Willow Creek Comment
  CAS-BOT-BC51222  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC18308  Ceanothus parryi P. J. Zinke 161 Humboldt Divide between Mill Creek and S Fork of Eel River, 2 mi S of Myer's Flat 305 Comment
  HSC37084  Ceanothus parryi R. Sutherland 1975-5-30 4 .30575 Humboldt 320 Comment
  JEPS42289  Ceanothus parryi Lincoln Constance 1934-5-24 632 Humboldt bordering lower Look Prairie on E side South Fork Eel River (Bull Creek Region) 121 Comment
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Mar 24 2013
  BLMAR673  Ceanothus thyrsiflorus Jennifer Wheeler 2013-6-7 673 Humboldt King range, Strawberry Rock 21 Comment
  JEPS42147  Ceanothus thyrsiflorus W. L. Jepson 1921-8-11 9409 Humboldt Big Lagoon, S end of Fern prairie Humboldt coast Comment
  RSA172184  Ceanothus thyrsiflorus Robert F. Thorne 1957-9-3 19022 Humboldt Patrick's Point State Park. Comment
  UC668161  Ceanothus thyrsiflorus Joseph P. Tracy 1937-5-30 15317 Humboldt Bridgeville 198 Comment
  SEINET193159  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road 5 miles north and 2 miles east of Boynton Prairie 630 Comment
  CAS-BOT-BC272108  Centaurea cyanus Henry M. Pollard 1948-7-24 s.n. Humboldt Near Orleans Comment
  CDA20058  Centaurea diffusa R. Spadoni, Green 2002-10-9 PDR P 070865 Humboldt Northwestern California; Wasteground near old log pond at Pacific Lumber Co, Scotia. 0 Comment
  UC1222949  Centaurea solstitialis Joseph P. Tracy 1943-11-28 17452 Humboldt near Alton (Eel River bar at mouth of Van Duzen); Eel River, Van Duzen Comment
  UC1199381  Centromadia fitchii Joseph P. Tracy 1925-8-23 7247 Humboldt Harris Northern Coast Ranges 914 Comment
  UC562467  Centunculus minimus Joseph P. Tracy 1935-5-25 13834 Humboldt Fort Seward 106 Comment
  HSC63884  Cephalanthera austiniae M. A. Baker 1979-6-27 919 Humboldt Comment
  UC8230  Cerastium arvense Mrs. M. H. Manning Apr. 1899 Humboldt Hoopa Valley Comment
  RSA20843  Cerastium arvense C. B. Wolf 1937-6-18 8883 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 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
  JEPS51361  Cerastium viride W. L. Jepson 1902-6-10 1883 Humboldt Harris to Ft. Seward Ranch Ridge 1066 Comment
  HSC98195  Cercis occidentalis Francis Winter 1960-4-24 Humboldt 8 mi. W of Hoopa Indian Reservation, Bair Rd. 686 Comment
  UC666857  Cercocarpus ledifolius var. ledifolius Joseph P. Tracy 1935-7-30 14362 Humboldt Salmon Summit, about 2 mi sw of the top of the mountain Salmon Summit 1767 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
  UC582764  Chaenactis douglasii var. douglasii Joseph P. Tracy 1933-7-25 12877 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC41288  Chamaecyparis lawsoniana Brad Klipfel 1974-7-27 482 Humboldt Horse Mtn., along Ruby Creek Comment
  HSC46007  Chamaecyparis lawsoniana J. P. Smith 1971-10-9 5021 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  RSA47095  Chamaecyparis lawsoniana Doris K. Kildale 1926-8-15 2522 Humboldt Willow Creek Flat-- up Willow Creek above[?] 3 mi. from mouth 152 Comment
  CDA30234  Chamaesyce serpyllifolia M. K. Beyers, I. Shepardson 2009-9-13 236 Humboldt In dry portion of the eastern side of the Eel River, east of State Route 254 (Avenue of the Giants) and Highway 101. Just west of the unincorporated community of Shively. 0 Comment
  JEPS52363  Chamaesyce serpyllifolia Joseph P. Tracy 1928-9-16 6555 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley Comment
  HSC55122  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-1 11922 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC93743  Chamerion angustifolium subsp. circumvagum Gordon Leppig 1998-9-20 1103 Humboldt Mckinleyville, Hammond Trail, 100 m N of Fischer Ave. 18 Comment
  UCD103644  Chamerion angustifolium subsp. circumvagum E. B. Alexander 1959-7-23 43 Humboldt California Forest and Range Experiment Station. 1 mile NW of Trinidad. Comment
  HSC39679  Cheilanthes gracillima Thomas W. Nelson, Jane Nelson 1976-6-16 2744 Humboldt Just W of Alder Springs 1524 Comment
  UC197915  Cheilanthes gracillima Joseph P. Tracy 1912-7-26 3841 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC97579  Cheilanthes gracillima Cara Witte 2007-5-23 97 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 0.5 mi. south of intersection with 5N04 and 4N32E. 1402 Comment
  JEPS59740  Chenopodium botrys Lincoln Constance 1934-5-27 690 Humboldt Dyerville bridge South Fork Eel River, Bull Creek Region (s end, gravel bar of river) 45 Comment
  UC79873  Chenopodium rubrum Harold E. Parks and Joseph P. Tracy 1934-10-13 11151 Humboldt Big Lagoon; shore 3 Comment
  HSC41338  Chimaphila umbellata Brad Klipfel 1974-9-7 562 Humboldt Horse Mtn., above E fork of Willow Creek Comment
  UC21651  Chimaphila umbellata J. Burtt Davy 1899-6-18 5620 Humboldt Bald Mt. near Korbel; North Coast Ranges, Bald Mt. Comment
  SJSU913A  Chimaphila umbellata J. W. Tilden 1946-6-20 1011 Humboldt Bluff Cr c. 1.5 mi above Klamath R Comment
  UC21656  Chimaphila umbellata Bolander June 1867 6543 Humboldt Parker's Station, Eureka Trail Comment
  UC32702  Chimaphila umbellata Chesnut and Drew 1888-7-8 Humboldt near Campbell's Comment
  CAS-BOT-BC236920  Chloropyron maritimum subsp. palustre Malcom A. Nobs; S. Galen Smith 1949-8-3 1200 Humboldt Bordering Humboldt Bay, ca. 2 miles north of Eureka Comment
  CAS-BOT-BC36487  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old Coast Road - at Thorn 304 Comment
  HSC74452  Chrysolepis chrysophylla Gail Newton 1980-8-10 2002 Humboldt Near Blake Mtn. 1798 Comment
  UC665684  Chrysolepis chrysophylla var. minor J. P. Tracy and H. E. Parks 1941-8-28 11541 Humboldt Blake Lookout area; South Fork Mountain 1706 Comment
  UC667993  Chrysolepis sempervirens Joseph P. Tracy 1937-7-29 15583 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC154073  Chrysosplenium glechomifolium J. P. Tracy 1905-3-5 2147 Humboldt immediate vicinity Eureka 0 Comment
  UC154254  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
  UC1145089  Cinna latifolia Joseph P. Tracy 1936-8-7 15087 Humboldt head of Little Hors-Linto Creek Trinity Summit; , head of Little Hors-Linto Creek 1371 Comment
  HSC70726  Circaea alpina subsp. pacifica Gail Newton 1980-7-14 1521 Humboldt Near Deadman Ridge 1097 Comment
  UC1198515  Circaea alpina subsp. pacifica Joseph P. Tracy 1935-7-23 14159 Humboldt lower end Brett Hole (Trinity Summit); Trinity Summit 1584 Comment
  UCR115124  Cirsium brevistylum B. Villegas 1998-8-4 s.n. Humboldt North Coast Ranges, Hwy 299 between mileposts 21.5 and 18, near Willow Creek. 415 Comment
  JEPS89473  Cirsium douglasii var. breweri Dean W. Taylor 1991-8-15 12302 Humboldt ridge 1 mi w of Horse Mountain (North Coast Ranges); North Coast Ranges 1493 Comment
  HSC94050  Cirsium douglasii var. douglasii B. Villegas 1998-8-5 Humboldt Nr. Berry Summit on Titlow Hill Rd., 4.8 mi. S of Hwy. 299 Comment
  CAS-BOT-BC285532  Cirsium occidentale var. candidissimum Doris K. Kildale 1928-6-24 5274 Humboldt Horse Mountain 914 Comment
  CAS-BOT-BC288712  Cirsium remotifolium Joseph P. Tracy 1930-7-21 8887 Humboldt Bear River RIdge Comment
  UC1223054  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1949-8-11 18481 Humboldt 2 to 6 mi s from Grouse Mt. (e of the headwaters of Redwood Creek, s from electric power line); Kinsey Ridge 1280 Comment
  RSA18145  Cirsium vulgare C. B. Wolf 1927-8-22 803 Humboldt Big Lagoon. Comment
  RSA791717  Clarkia Robert F. Thorne, P. Everett 1965-8-5 35152 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC160945  Clarkia amoena subsp. amoena Peter H. Raven; R. Snow 1958-7-21 13656 Humboldt 7.2 miles north-west of Capetown on road to Ferndale Comment
  JEPS23479  Clarkia amoena subsp. amoena Joseph P. Tracy 1938-6-17 15957 Humboldt s of point Cape Mendocino (near ocean shore) 3 Comment
  UC183702  Clarkia amoena subsp. amoena Joseph P. Tracy 1912-7-26 3857 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC160955  Clarkia amoena subsp. amoena Doris K. Kildale 1926-7-11 2367 Humboldt Wildcat Ridge near Mountain Glen Comment
  CAS-BOT-BC160966  Clarkia amoena subsp. amoena Alice Eastwood 1921-7-21 10663 Humboldt [Vanduzen] Van Duzen River, along the road 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
  POM271818  Clarkia amoena subsp. huntiana Lyman Benson 1929-7-19 1865 Humboldt Dyerville to Matole River. Comment
  RSA23649  Clarkia amoena subsp. huntiana Carl B. Wolf 1939-7-8 9520 Humboldt Devil s Gate on road to Petrolia; 1 mile inland 152 Comment
  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
  CAS-BOT-BC172502  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1916-7-11 6028 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  HSC43846  Clarkia purpurea subsp. quadrivulnera Maralyn O'Meara 1974-7-17 555 Humboldt Comment
  UC1196984  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1898-7-13 256 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek Bar 60 Comment
  UC902172  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1947-6-28 17723 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  UC20026  Clarkia rhomboidea Harley P. Chandler June, 1901 1339 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC17755  Claytonia exigua subsp. exigua D. E. Anderson 1963-5-19 2467 Humboldt About 1 mi. S of Kneeland school Comment
  HSC67213  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5442 Humboldt Along branch road off Swayback Ridge Rd., 1/2 mi. E of junction 1372 Comment
  HSC90481  Claytonia perfoliata Jean Hanson 1981-5-10 133 Humboldt Indian Island, Eureka, W end of island Comment
  CAS-BOT-BC439931  Claytonia perfoliata subsp. mexicana K. L. Chambers 1977-3-28 4240 Humboldt At north end of Humboldt Bay, by the road between Arcata and Samoa. Comment
  SEINET9136502  Claytonia perfoliata subsp. mexicana C. E. Fellows 1972-4-29 485 Humboldt Ca 20 meters below the W side of the road to Kneeland, 8 miles ESE of Eureka, 3.1 miles above town of Freshwater. 610 Comment
  HSC39940  Claytonia rubra subsp. depressa Linda M. Barker 1976-3-22 1336 Humboldt 3 mi. W of Arcata Comment
  HSC17697  Claytonia rubra subsp. depressa D. E. Anderson 1962-3-4 1926 Humboldt About 2 mi. S of Trinidad Comment
  HSC97140  Claytonia rubra subsp. rubra K. Auker, R. Battleson 2007-6-4 2 Humboldt Cold Spring Camp, 7.4 mi. S of Hwy. 299 on FS Rd. NF1 1372 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
  UC672998  Claytonia rubra subsp. rubra Joseph P. Tracy 1933-6-13 12579 Humboldt near summit road from Hoopa westward to Bair's; Hoopa Mountain 1066 Comment
  HSC65860  Claytonia saxosa Gail Newton 1980-6-28 735 Humboldt Near Mad River Butte. 1536 Comment
  HSC53824  Claytonia sibirica Griswold, Butler 1979-7-10 6270 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC89441  Claytonia sibirica P. A. Daly 1985-5-3 36 Humboldt Trinidad Head 61 Comment
  HSC95732  Claytonia sibirica Steven Lee 2004-4-13 17 Humboldt Arcata Community Forest, along Jolly Giant Creek Rd. Comment
  UC162974  Claytonia sibirica Joseph P. Tracy 1907-5-1 2557 Humboldt Eureka; Northern Coast Region 0 Comment
  UC852101  Claytonia sibirica Elizabeth Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  SD38113  Claytonia sibirica Marie Cummings 1933-5-22 110 Humboldt Near Blockburg Comment
  SD90249  Claytonia sibirica Benjamin C. Stone 1952-6-19 112 Humboldt Humboldt Redwoods State Park; by Founders' Tree 152 Comment
  UC161049  Claytonia sibirica Joseph P. Tracy 1911-7-5 3326 Humboldt near mouth of Willow Creek (along Willow Creek, tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  UCD15453  Claytonia sibirica Collector Unknown 1974-1-6 136 Humboldt California, Humbolt Co.; Patricks Pt. State Park along Hwy 101, along trail to Agate Beach; 3 Comment
  CAS-BOT-BC499335  Clintonia andrewsiana H. C. Cantelow 1936-5-17 1341 Humboldt 3 mi. E. of Oriak Comment
  HSC15446  Clintonia andrewsiana Jack Rockwell 1962-4-29 67 Humboldt S bank Van Duzen River E of Hwy. 101 Comment
  HSC102559  Clintonia uniflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1547 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC75449  Collinsia grandiflora J. O. Sawyer 1980-7-18 3583 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  JEPS4632  Collinsia grandiflora Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez and S. Carlquist 1951-6-14 3409 Humboldt on long high ridge between Mad River and Redwood Creek (Bald Mountain); High Prairie 1066 Comment
  JEPS6215  Collinsia grandiflora Joseph P. Tracy Jan 1917 4777 Humboldt Eureka Comment
  SBBG27286  Collinsia grandiflora H. E. Parks, J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley (Larabee Valley) 762 Comment
  HSC66825  Collinsia greenei Gail Newton 1980-7-15 1555 Humboldt Near Sims Mtn. 1311 Comment
  RSA46692  Collinsia greenei Doris K. Kildale 1938-6-5 15393 Humboldt Horse Mountain Comment
  HSC39196  Collinsia greenei D. E. Anderson, J. P. Smith 1971-7-6 - 1329 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  POM203235  Collinsia heterophylla M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  BLMAR643  Collinsia linearis Jennifer Wheeler 2011-6-29 643 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  HSC20635  Collinsia linearis D. E. Anderson 1965-6-1 3777 Humboldt Along Ridge Rd., about 7 mi. NE of its Jct. with Titlow Hill Rd. Comment
  RSA30612  Collinsia linearis Lincoln Constance, R. C. Rollins 1942-5-12 2888 Humboldt Klamath River 10 miles northeast of Weitchpec. 122 Comment
  HSC32323  Collinsia parviflora D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5664 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC41245  Collinsia parviflora Brad Klipfel 1974-5-27 391 Humboldt Horse Mtn. Comment
  HSC40672  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-7-1 2929 Humboldt Along beanch to W of Mt. Lassic (Signal Peak) 1677 Comment
  UC908752  Collomia grandiflora Joseph P. Tracy 1933-7-3 12635 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC71069  Collomia heterophylla Thomas W. Nelson, Jane P. Nelson 1977-5-30 3403 Humboldt Above Mad River at Anderson's Ford. 640 Comment
  UCR111241  Collomia heterophylla H. E. Parks 1933-1 01152 Humboldt North Coast, Spruce Cove, Trinidad 76 Comment
  CAS-BOT-BC230665  Collomia tracyi Milo S. Baker 1946-6-15 11476 Humboldt Horse Mountain Road, about 2 miles up from Trinity Highway 1066 Comment
  CAS-BOT-BC180242  Comandra umbellata subsp. californica Joseph P. Tracy 1927-5-15 8038 Humboldt Trinity River Valley, near the S Fork 182 Comment
  JEPS14142  Conioselinum pacificum Joseph P. Tracy 1913-8-31 4388 Humboldt near Indianola (s end of Humboldt Bay); Northern Coast Region, Humboldt Bay Region 0 Comment
  UC1222613  Conium maculatum Joseph P. Tracy 1950-6-8 18768 Humboldt near Petrolia (Hills between town and ocean) Comment
  HSC45026  Conyza canadensis R. Sutherland 1976-8-19 7 .19876 Humboldt 259 Comment
  HSC103687  Coptis laciniata M. R. Mesler, Jen Kalt 2008-3-19 858 Humboldt Above Mattole River, 2 miles S of Thorn Junction on Briceland-Thorn Rd 226 Comment
  HSC74155  Corallorhiza maculata Gail Newton 1980-7-20 1599 Humboldt Near Bell Swamps 1463 Comment
  JEPS64350  Corallorhiza mertensiana Virginia P. Fox July 1919 Humboldt Bald Mountain Comment
  SBBG1153  Corallorhiza mertensiana H. and M. Dearing 1939-7-25 3709 Humboldt road to Blakes Lookout 1524 Comment
  HSC100583  Corallorhiza multiflora Carl C. Marshall 297 Humboldt Coyote Camp. Comment
  SEINET200684 Image available Corallorhiza striata var. striata Joseph P. Tracy 1913-6-14 4131 Humboldt Lower foothills of Buck Mountain, on its northwest slope 762 Comment
  JEPS70115  Cordylanthus maritimus subsp. palustris L. R. Heckard 1972-8-9 3152 Humboldt Margin of Humboldt Bay 2 mi s of Arcata; Humboldt Bay Comment
  UC604676  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1938-8-14 16118 Humboldt mt. slopes w mouth of river; South Fork of Trinity River 304 Comment
  CAS-BOT-BC101075  Coreopsis lanceolata Henry M. Pollard 1948-7-27 s.n. Humboldt Barker Ranch on Red Cap Creek, near Orleans Comment
  CAS-BOT-BC101142  Corethrogyne filaginifolia Joseph P. Tracy 1936-7-10 15046 Humboldt Vicinity of Carlotta 30 Comment
  UC1199415  Corethrogyne filaginifolia Joseph P. Tracy 1909-7-18 3016 Humboldt Humboldt Bay Comment
  UC1601151  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  HSC100453  Cornus nuttallii Carl C. Marshall Jun 1886 283 Humboldt Bald Hills. Comment
  HSC6411  Cornus nuttallii D. E. Anderson 1965-4-24 3549 Humboldt 1 mi. E of Redwood Creek bridge on Hwy. 299 Comment
  HSC26713  Cornus sessilis D. E. Anderson 1973-5-13 6027 Humboldt 100 meters S of Jct. of E Fork of Willow Creek and Willow Creek proper. Comment
  RSA0019464  Cornus sessilis F. W. Peirson 1932-7-7 10262 Humboldt Willow Creek, a few miles above the town of that name. Comment
  HSC28085  Coronopus didymus David Johnson 1973-11-27 Humboldt S side of Samoa Cookhouse Comment
  HSC12827  Cortaderia selloana Wilbur Peterson, Thomas W. Nelson 1970-11-1 105 Humboldt Arcata, Humboldt State University campus, S side of the tennis court Comment
  SEINET3817861  Cotula coronopifolia E. G. Kynoch Jr. 1966-10-7 405 Humboldt Clam Beach near Little River State Park 2 Comment
  HSC27496  Cotula coronopifolia Brad Klipfel 1973-4-26 18 Humboldt Eureka; Del Norte St. at Humboldt Bay Comment
  RSA20802  Crataegus douglasii Carl B. Wolf 1937-8-13 s.n. Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  HSC57181  Crepis acuminata Griswold, Butler 1979-7-10 6227 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC48026  Crepis acuminata Brad Klipfel 1974-6-25 424 Humboldt Horse Mtn. Comment
  CDA4466  Crepis capillaris T. R. Haig 1960-6-2 Humboldt 1mile west of Rio Dell, Humbolt Co., CA. 0 Comment
  POM92411  Crepis capillaris L. R. Abrams 1922-6-25 8234 Humboldt 2 miles south of Fortuna Comment
  UC165199  Crepis monticola Joseph P. Tracy 1908-6 2915 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  HSC76217  Crepis pleurocarpa Overton, Butler 1979-7-24 9717 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC96260  Crepis pleurocarpa Laurel Goldsmith, Wanda Naylor 2005-6-15 10 Humboldt 1 mi. SE of Grouse Mtn. on unnamed F.S. road 1400 Comment
  HSC100428  Crocidium multicaule Carl C. Marshall Apr 1887 366 Humboldt Hoopa Valley, near Supply Creek. Comment
  SEINET3875024  Crocosmia aurea Bennett, Dunn; Dziekanowski 1976-8-6 477 Humboldt Collected by Highway 101, North side of Orick.; 0 30 Comment
  HSC100706  Cryptantha Carl C. Marshall Jun 1887 484 Humboldt Near Jewett's field. Comment
  HSC58122  Cryptantha affinis G. L. Clifton, Griswold 1979-8-1 12093 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC58140  Cryptantha affinis Gilbert Muth 1979-8-1 12159 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC24717  Cryptantha intermedia Harley P. Chandler Jun 1901 1302 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CHSC10140  Cryptantha leiocarpa J. W. Johnson 1962-4-10 1237 Humboldt Arcata. West slope of Ridge 3 behind the foredunes. Christenson Farm, Samoa Penisula. Comment
  UC525598  Cryptantha torreyana Joseph P. Tracy 1930-6-15 8751 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC162944  Cupressus lawsoniana Joseph P. Tracy 1911-7-6 3341 Humboldt mountain slopes along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC502918  Cupressus lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  UCSB24335  Cuscuta californica Tracy, Joseph 1930-7-16 Humboldt South Fork Mountain; openings in fir forest near McKay Camp 1676 Comment
  HSC57970  Cuscuta occidentalis G. L. Clifton, Griswold 1979-7-31 11699 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  SEINET5785849 Image available Cuscuta salina var. major C. C. Harris, S. K. Harris 1941-8-28 Humboldt Humboldt Bay near Table Bluff Comment
  UC1197869  Cuscuta subinclusa Doris Kildale 1926-9-6 Humboldt Lasseck Peak Comment
  HSC10939  Cynodon dactylon D. E. Anderson 1965-6-10 3788 Humboldt Along Hwy. 101 in south part of Eureka Comment
  UC922008  Cynodon dactylon Joseph P. Tracy 1948-8-22 18108 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  HSC3639  Cynoglossum grande Paul Shields Apr 1955 Humboldt Kneeland Comment
  HSC3644  Cynoglossum grande Jack Rockwell 1962-5-4 47 Humboldt E side road, 0.5 mi. from Kneeland 457 Comment
  UCD19980  Cynoglossum grande C. H. Lamoureux; R. Gankin 1956-3-17 1041 Humboldt 1 mile north of Garberville on Hwy 101. Comment
  CAS-BOT-BC190371  Cynosurus cristatus Peter H. Raven; R. Snow 1958-7-21 13657 Humboldt 2.0 miles north of Cape Mendocino. Comment
  SACT000843  Cynosurus cristatus Malcolm Nobs, S. Smith 1949-8-3 Humboldt Marsh and bog land at the southern outskirts of Eureka. Comment
  HSC65448  Cynosurus echinatus J. P. Smith 1973-5-26 6795 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA44473  Cynosurus echinatus Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans. 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
  HSC7208  Cyperus acuminatus John H. Kynoch 1966-9-23 406 Humboldt Near Trinity River and Willow Creek 142 Comment
  UC535738  Cyperus eragrostis Eleanor Armstrong 1157 Humboldt Richardson Grove Comment
  UC1103634  Cyperus strigosus Joseph P. Tracy 1920-8-15 5377 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  UC1196446  Cypripedium montanum Joseph P. Tracy 1924-4-27 6647 Humboldt brushy hillside at Berry's; Northern Coast Ranges, Redwood Creek 365 Comment
  HSC98728  Cystopteris fragilis Cara Witte 2007-7-20 563 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  POM208983  Cystopteris fragilis Lincoln Constance 1934-6-2 781 Humboldt The mouth of Bull Creek, Humboldt Redwood Park 46 Comment
  CSUSB1618  Cytisus monspessulanus Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  CHSC10111  Cytisus scoparius T. M. Mingo 1965-5-1 Humboldt Approximately 5 miles north of Trinidad in fields near the coast. Comment
  HSC14671  Cytisus scoparius Harvey Doerksen 1962-5-22 26 Humboldt .5 mi. E of Hwy. 299-101 junction. Comment
  HSC34810  Cytisus scoparius David Peters 1975-4-9 2 Humboldt .2 mi. E of Old Arcata Rd. on Jacoby Cr. Rd. Comment
  HSC22835  Dactylis glomerata B. D. Rogers 1964-4-28 28464 Humboldt Humboldt State campus near Redwood Hall parking lot Comment
  CDA31640  Danthonia californica T. R. Haig 1960-6-19 Humboldt 2 miles south of Kneeland 0 Comment
  HSC24617  Danthonia californica William J. Ferlatte, B. D. Rogers 1966-6-15 2108 Humboldt Larabee Valley 762 Comment
  HSC40398  Danthonia californica Thomas W. Nelson 1976-7-9 3008 Humboldt S of Mtn. Lassic, (Signal Peak). 1707 Comment
  HSC9552  Danthonia californica J. P. Tracy 1927-7-4 8234 Humboldt Lone-Star Creek, Iagua. 610 Comment
  HSC97571  Danthonia californica Cara Witte 2007-6-7 230 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC552732  Danthonia californica var. americana Joseph P. Tracy 1935-5-25 13853 Humboldt Fort Seward 106 Comment
  UCD61078  Danthonia unispicata R. Tofsrud 1948-9-3 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UC249629  Darmera peltata Joseph P. Tracy 1921-9-4 5958 Humboldt mouth of South Fork of Trinity River; Northern Coast Ranges 152 Comment
  BLMAR238  Datisca glomerata Jennifer Anthony-Wheeler 1997-6-13 238 Humboldt King range, growing in wet seep along old queen mine rd 512 Comment
  SBBG5180  Daucus pusillus H. and M. Dearing 1939-5-25 3442 Humboldt sand dunes near Samoa Comment
  UCSB15507  Daucus pusillus 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  JEPS15999  Daucus pusillus W. L. Jepson 1902-6 1963 Humboldt Redwood Creek, Hupa Rd. Comment
  JEPS23882  Delphinium decorum subsp. tracyi Frank W. Gould 1939-5-30 837 Humboldt Near top of Horse Mountain (about 25 miles due east of Eureka) Comment
  UC467718  Delphinium decorum subsp. tracyi Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5802 B Humboldt Trinity Summit Comment
  HSC95728  Delphinium nudicaule Steven Lee 2004-4-26 30 Humboldt Horse Mtn., 4 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  HSC100615  Delphinium nudicaule Carl C. Marshall May 1887 412 Humboldt Lawrence Creek. Comment
  HSC25013  Delphinium nudicaule R. A. Rasp 1964-4-5 28 Humboldt 5 mi. N of Hoopa on Willow Creek Rd. Comment
  CAS-BOT-BC121975  Delphinium trolliifolium Mrs. G Earle Kelly 1924-6-1 s.n. Humboldt Kneeland Prairie Comment
  UCD131743  Delphinium trolliifolium Collector unknown 2013-4-23 s.n. Humboldt Near Ferndale. 914 Comment
  HSC37428  Delphinium trolliifolium D. W. Snell 1964-4-18 49 Humboldt Mad River bottom, 3 mi. N of Blue Lake Comment
  UC668070  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  SEINET10515745  Deschampsia cespitosa Mark Stopher 1980-6-4 Stopher 95 Humboldt Very common along Elk River near Hwy 101 bridge. Eureka Quadrangle 7.5', T4N R1W S4 SW1/4. 1 Comment
  HSC27023  Deschampsia cespitosa subsp. holciformis Brad W. Klipfel 1973-8-17 274 Humboldt Big Lagoon Park, at the Sphagnum bog. Comment
  HSC27104  Deschampsia cespitosa subsp. holciformis L. M. Malloy 1965-5-19 38 Humboldt Arcata, southside of Samoa Rd., opposite of KATA radio station, adjacent to the railroad tracks, bank of a drainage ditch. Comment
  LA10879  Deschampsia danthonioides Joseph P. Tracy; 1935-6-23 13969 Humboldt 1066 Comment
  CAS-BOT-BC201775  Deschampsia elongata Joseph P. Tracy 1934-7-18 13434 Humboldt Grouse Mountain 1524 Comment
  HSC58650  Deschampsia elongata G. L. Clifton 1979-7-31 11682 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC72638  Deschampsia elongata J. P. Smith 1977-7-3 9245 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  RSA293158  Deschampsia elongata J. P. Smith 1977-7-3 9245 Humboldt Six Rivers National Forest. Along the road to Onion Lake, just above Blue Lake. 976 Comment
  UC1103213  Deschampsia elongata J. P. Tracy 1900-8-5 920 Humboldt immediate vicinity of Eureka 0 Comment
  UC187265  Deschampsia elongata Joseph P. Tracy 1908-6 2710 Humboldt opposite Buck Mt. Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  UC34060  Deschampsia elongata J. P. Tracy 1901-6-10 1130 Humboldt immediate vicinity of Eureka 0 Comment
  UCD63596  Deschampsia elongata Elizabeth Wilson 1936-6-18 Humboldt From Garberville north into Holbrook Grove. Comment
  HSC31568  Dicentra formosa Glenn McGourty 1974-5-11 38 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC8359  Dicentra formosa J. Sandborg, F. Sandborg May 1968 9 Humboldt Bluff Creek near Notice Creek 793 Comment
  HSC91892  Dicentra formosa E. Mackey 1987-3-1 Humboldt Patrick's Point State Park Comment
  HSC26869  Dicentra formosa Clifton Raymond Chesbrough 1973-6-19 93 Humboldt 1/2 mi. N of College Cove Comment
  HSC62875  Dicentra formosa J. M. DiTomaso 1979-4-21 901 Humboldt On Stagecoach Rd. at College Cove parking lot, Trinidad Comment
  RSA433570  Dicentra formosa subsp. formosa Charlotte M. Hoak 1931-7-15 s.n. Humboldt Trinidad 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
  UC176178  Dichelostemma capitatum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3614 Humboldt near Hydesville; Northen Coast Region 30 Comment
  UC1198183  Dichelostemma ida-maia Joseph P. Tracy 1927-8-14 8329 Humboldt Big Lagoon 152 Comment
  UC635734  Dichelostemma ida-maia H. L. Mason 1928-7-20 4909 Humboldt South Fork Mountain Comment
  SEINET12049824  Dichelostemma ida-maia F. H. Utech 1986-1 86 -396 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  SEINET4095000  Digitalis purpurea O. M. Clark 1932-1 5315 Humboldt South Eureka. Comment
  CAS-BOT-BC151742  Diplacus kelloggii Milo S. Baker 1925-4-7 241 a Humboldt Blue Lake Comment
  UC1197655  Disporum smithii Joseph P. Tracy 1924-5-4 6671 Humboldt Strong's Station on the Van Duzen River Van Duzen River; Northern Coast Ranges, , Strong's Station 91 Comment
  CAS-BOT-BC208658  Distichlis spicata Malcom A. Nobs; S. Galen Smith 1949-8-3 1178 Humboldt Salt marshes around Fields Landing Comment
  HSC71215  Distichlis spicata Thomas W. Nelson, Doris K. Niles 1979-5-19 4693 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC9630  Distichlis spicata J. A. Waller 1965-5-21 48 Humboldt Salt Marsh off of Samoa Rd. Comment
  SEINET201055 Image available Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Trinity Summit, Corral Prarie. 1585 Comment
  SEINET201059 Image available Dodecatheon hendersonii Joseph P. Tracy 1927-5-15 8061 Humboldt Hoopa Mountain; near summit on road west from Hoopa to Bair's. 1067 Comment
  HSC17861  Dodecatheon hendersonii R. A. Rasp 1964-4-5 26 Humboldt 5 mi. N of Hoopa on Willow Creek Rd. Comment
  HSC55019  Dodecatheon jeffreyi Overton, Butler 1979-7-31 11426 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1222171  Dodecatheon jeffreyi Joseph P. Tracy 1951-6-14 19406 Humboldt Snow Camp 1402 Comment
  UC562745  Dodecatheon jeffreyi Joseph P. Tracy 1932-7-17 10669 Humboldt ridges e Corral Prairie (Trinity Summit); , ridges e of Corral Prairie 1828 Comment
  UC1199495  Downingia elegans Joseph P. Tracy 1937-7-19 15462 Humboldt Larrabee Valley 731 Comment
  UCD55079  Downingia willamettensis Rachel Foster 1970-1 F70- 96 -11 Humboldt Hydesville. Adjacent to Hydesville School. Comment
  UC1115832  Draba verna Joseph P. Tracy 1939-5-14 16294 Humboldt Dinsmore's along Van Duzen River, Dinsmore's 746 Comment
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt Comment
  HSC57850  Drymocallis glandulosa var. reflexa G. L. Clifton 1979-7-31 11357 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC89449  Dryopteris arguta P. A. Daly 1984-5-8 16 Humboldt Trinidad Head 61 Comment
  UC1239776  Dryopteris arguta Joseph P. Tracy 1931-1-24 9280 Humboldt Alton; Northern Coast Region 30 Comment
  UC528082  Dryopteris arguta Ira L. Wiggins 1932-6-18 5872 Humboldt hillside at mouth of Little River Comment
  UCD136407  Dryopteris arguta K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  CAS-BOT-BC71055  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 1378 Humboldt 8 mi. N. of Orick Comment
  HSC97541  Dysphania ambrosioides Ivy Watson 2008-9-17 15 Humboldt Mad River Park on W End Rd., near pumping station 8 Comment
  CDA30189  Echinochloa crus-galli M. K. Beyers, I. Sheperdson 2009-9-13 239 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
  UC175612  Echinochloa crus-galli Joseph P. Tracy 1911-7-11 3507 Humboldt Hoopa Valley; Northern Coast Ranges, Hoopa Valley 152 Comment
  CAS-BOT-BC197256  Echinochloa muricata var. microstachya Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC113337  Eleocharis montevidensis Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region. Comment
  HSC58814  Eleocharis quinqueflora G. L. Clifton, Griswold 1979-8-1 12054 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  SEINET201036  Elymus elymoides subsp. brevifolius Joseph P. Tracy 1919-9-23 5279 Humboldt Trinity Summit 1829 Comment
  UC526782  Elymus elymoides subsp. elymoides Joseph P. Tracy Jul 16 1930-Jul 19 1930 8955 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  RSA10137  Elymus glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie, on Bald Mountain 1067 Comment
  UC1056067  Elymus glaucus J. I. Mallory 1955-6-7 113 Humboldt Luke Prairie Quad. 29-B-3 (n end) 350 Comment
  UC184693  Elymus glaucus Joseph P. Tracy 1912-7-26 3829 Humboldt Kneeland Prairie Northern Coast Ranges 762 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
  HSC73480  Elymus multisetus Gail Newton 1980-7-11 1327 Humboldt Near Red Mtn. 1341 Comment
  UC1103131  Elymus multisetus Joseph P. Tracy 1912-8-3 3962 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC102236  Elymus ponticus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1160 Humboldt Andy's Camp 1564 Comment
  SEINET200638  Elymus virescens Joseph P. Tracy 1927-6-26 8215 Humboldt Stone Lagoon. 6 Comment
  HSC102919  Epilobium M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1077 Humboldt Patterson Meadows 1555 Comment
  SDSU8812  Epilobium angustifolium Harvey 1938-8-13 2236 Humboldt Stephens Grove Comment
  HSC57372  Epilobium brachycarpum Overton, Butler 1979-7-26 10086 Humboldt Near Cold Spring, close to the town of Willow Creek 1408 Comment
  UC314613  Epilobium brachycarpum Joseph P. Tracy 1925-9-20 7273 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC668305  Epilobium campestre Joseph P. Tracy 1938-7-5 16009 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  SBBG60140  Epilobium canum subsp. latifolium L. Rowntree 1931-7-21 Humboldt Mattole River 2 mi from Petrolia Comment
  HSC74688  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-7 2467 Humboldt Near Board Camp Mtn. 1478 Comment
  UC583074  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-9 14330 Humboldt roadside on Redwood Hwy 5 mi n Humboldt-Mendocino Co. line; South Fork Of Eel River Comment
  RSA225519  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-13 14380 Humboldt 10 miles west of Willow Creek. 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
  SD219078  Epilobium ciliatum subsp. glandulosum Robert F. Thorne, P. Everett 1965-8-9 35347 Humboldt Along Highway 101, ca. 3.0 miles north of Eureka. 2 Comment
  UC1197006  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9099 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC205638  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1919-9-18 5225 Humboldt Trinity Summit, Northern Coast Ranges Comment
  HSC99114  Epilobium ciliatum subsp. glandulosum Cara Witte 2007-6-8 238 Humboldt Intersection of National Forest 1 and 4N38. Intersection to Board Camp Mountain. 1395 Comment
  HSC16358  Epilobium ciliatum subsp. watsonii D. E. Anderson 1961-9-2 1764 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC49655  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4953 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC16346  Epilobium ciliatum subsp. watsonii D. E. Anderson 1961-8-25 1742 Humboldt 1.5 mi. S of Trinidad Comment
  UC1198501  Epilobium densiflorum Joseph P. Tracy 1914-6-28 4517 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC55074  Epilobium hallianum G. L. Clifton, Griswold 1979-7-31 11675 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC39234  Epilobium minutum D. E. Anderson, J. P. Smith 1971-7-6 - 1273 Humboldt Horse Mtn. Comment
  HSC70924  Epilobium minutum R. York 1980-5-18 574 Humboldt Near Black Mtn 792 Comment
  HSC73789  Epilobium minutum Gail Newton 1980-6-28 704 Humboldt Near Mad River Butte. 1536 Comment
  HSC75356  Epilobium minutum J. O. Sawyer, M. A. Ericksen 1980-7-18 3643 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  RSA256576  Epilobium minutum D. E. Anderson 1972-6-20 5747 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  HSC44405  Epilobium minutum R. York 1978-5-6 157 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  JEPS31520  Epilobium septentrionale Joseph P. Tracy 1933-9-9 13075 Humboldt vicinity of Garberville (along S. Fork Eel R.); S. Fork Eel R. 121 Comment
  UC1196952  Epilobium septentrionale Arthur E. Connick 1932-8-12 Humboldt Garberville 121 Comment
  RSA259564  Epipactis gigantea D. E. Anderson, J. P. Smith 1971-6-28 J- 1224 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  HSC16602  Epipactis gigantea J. Wendell Howe 1931-6-18 Humboldt Redway Comment
  HSC91902  Equisetum arvense E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  UC503072  Equisetum hyemale subsp. affine Joseph P. Tracy 1928-6-17 8456 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges 152 Comment
  POM281840  Equisetum hyemale var. affine Lyman Benson 1928-7-9 414 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  MACF015742  Equisetum hyemale var. robustum F. A. MacFadden 1935-6-22 13769 Humboldt River bank, near Wrott, Humboldt Co. California Comment
  CDA37518  Equisetum telmateia subsp. braunii G. D. Barbe 1984-6-7 4164 Humboldt Along Highway 299, 17 miles east of Arcata and junction with Highway 101. Comment
  HSC885  Equisetum telmateia subsp. braunii S. J. Hawks, D. E. Anderson 1965-5-18 80 Humboldt Luffenholtz Beach Comment
  POM281805  Equisetum telmateia var. braunii Lyman Benson 1928-7-9 416 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  RSA53832  Eragrostis hypnoides Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  UC526901  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1931-9-7 9653 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC68152  Erechtites glomeratus J. O. Sawyer, J. P. Smith 1975-5-24 8081 Humboldt Off Samoa Blvd. across from the boat landing Comment
  CAS-BOT-BC299910  Erechtites minimus Doris K. Kildale 1925-7-28 1104 Humboldt On the Van Duzen River near Strong's Station Comment
  CAS-BOT-BC299911  Erechtites minimus H. E. Parks 1931-9-1 1058 Humboldt Trinidad 76 Comment
  HSC91918  Erechtites minimus E. Mackey 1986-7-21 Humboldt Patricks Point State Park, near Wedding Rock Comment
  CAS-BOT-BC174186  Eremogone congesta var. congesta Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  RSA639200  Erica lusitanica Gary D. Wallace 1988-4-11 2806 Humboldt South of Eureka: Just north of Loleta on Hwy 101, just south of Loleta Drive. 60 Comment
  CAS-BOT-BC296107  Erigeron foliosus var. confinis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1223141  Erigeron foliosus var. confinis Joseph P. Tracy 1947-7-5 17785 Humboldt Ridge top, 1 mi w Mud Springs; Trinity Summit Comment
  RSA47129  Erigeron foliosus var. mendocinus Doris K. Kildale 1925-7-19 1046 Humboldt Bridgeville Comment
  POM289039  Erigeron glaucus Lyman Benson 1929-7-19 1850 Humboldt Mouth of Matole River. Comment
  UC594158  Erigeron glaucus S. K. Harris 1936-6-15 3380 Humboldt Trinidad Head. Comment
  CAS-BOT-BC308848  Erigeron glaucus Doris K. Kildale 1926-5-15 1975 Humboldt Fleener Creek Comment
  HSC59670  Erigeron glaucus George Kirn 1977-9-27 Humboldt 0.5 mi. NW of Samoa 8 Comment
  HSC79376  Erigeron glaucus Kenneth Clark 1980-5-10 646 Humboldt Along coastal bluffs of Point Delgada, Shelter Cove 6 Comment
  UC1199401  Erigeron inornatus var. inornatus Joseph P. Tracy 1939-8-16 16422 Humboldt Grouse Mountain 1524 Comment
  HSC5562  Erigeron inornatus var. inornatus M. H Manning 1901-7-25 311 Humboldt Bald Hill near Hoopa Comment
  RSA0010343  Erigeron klamathensis Joseph P. Tracy 1937-7-24 15515 Humboldt Trinity Summit, 2 miles SE of Devil's Hole. 1585 Comment
  UC1199404  Erigeron klamathensis F. A. Graham and Joseph P. Tracy 1932-7-17 10696 Humboldt head Hors Linto Creek (rocky places at the lower end, Devils Hole); , Devils Hole 1524 Comment
  CDA4936  Erigeron philadelphicus Keith Miller, T. R. Haig 1960-6-13 4552 Humboldt 4 miles southeast of Carlotta 0 Comment
  UC34159  Erigeron philadelphicus var. philadelphicus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  JEPS21941  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1936-6-17 14963 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, , Burr Valley 1066 Comment
  HSC31208  Eriodictyon californicum D. E. Anderson 1972-6-20 5737 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC562607  Eriodictyon californicum Joseph P. Tracy 1923-6-19 6299 Humboldt e Kings Peak (Wilder Ridge); e of Kings Peak, Wilder Ridge 762 Comment
  HSC35695  Eriogonum compositum var. compositum Thomas W. Nelson, B. Reinhardt 1975-7-30 2102 Humboldt Beside road out Whiting Ridge Comment
  JEPS95110  Eriogonum latifolium Vernon Oswald and Lowell Ahart 1997-9-4 8853 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  UCD100336  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River. Comment
  CAS-BOT-BC261490  Eriogonum nudum var. nudum A. A. Heller 1924-7-20 13863 Humboldt Along the Eel River at Phillipsville Comment
  CAS-BOT-BC261491  Eriogonum nudum var. nudum Carl B. Wolf 1927-8-30 1233 Humboldt 2 mi. so. of Petrolia on Matole [Mattole] River near point where road crosses river Comment
  HSC43083  Eriogonum nudum var. nudum Brad Klipfel 1973-8-3 304 Humboldt N Trinity Mtn. 1860 Comment
  UC55393  Eriogonum umbellatum var. dumosum Harley P. Chandler June 1901 1495 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  HSC17370  Eriogonum umbellatum var. goodmanii J. Wendell Howe 1934-7-21 1314 Humboldt Horse Mtn., Cold Springs Comment
  SEINET245667  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8346 Humboldt Along U.S. Forest Service Road 1 northwest of Grouse Mountain at milepost 14.3, about 10.3 air miles southwest of Salyer 1372 Comment
  UC412902  Eriogonum umbellatum var. nelsoniorum P. E. Goddard 1906-6 657 Humboldt Lasseck Pk. Comment
  HSC5581  Eriophyllum lanatum var. achilleoides H. E. Parks, J. P. Tracy 1934-6-27 11063 Humboldt Grouse Mtn. 1433 Comment
  UC582677  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1936-6-10 14929 Humboldt mountain slopes w of mouth South Fork Trinity River 457 Comment
  UC1718078  Eriophyllum lanatum var. grandiflorum John S. Mooring 1970-7-7 2498 Humboldt hwy 96 2.5 miles S of Klamath River in Weitchpec, 20.4 miles N of Willow Creek in Willow Creek Comment
  CAS-BOT-BC301686  Eriophyllum lanatum var. lanceolatum Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet Ranch Comment
  CAS-BOT-BC301687  Eriophyllum lanatum var. lanceolatum Harley P. Chandler 1901-6-1 1403 Humboldt North Coast Ranges. Klamath River 243 Comment
  HSC35608  Eriophyllum lanatum var. lanceolatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2020 Humboldt French Camp, Bald Hills Comment
  HSC7229  Erodium cicutarium D. E. Anderson 1963-5-19 2463 Humboldt Barry Rd., 1/2 mi. W of Kneeland school Comment
  HSC8510  Erodium moschatum Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station 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
  HSC77515  Erysimum concinnum May Bugbee 1984-6-14 Humboldt Mattole Beach, S of mouth of Mattole River Comment
  HSC6785  Erysimum menziesii S. J. Hawks 1965-3-19 8 Humboldt W of Eureka airport. Comment
  HSC6788  Erysimum menziesii D. E. Anderson 1962-3-25 1949 Humboldt 0.5 mi. N of Fairhaven. Comment
  SEINET13679562 Image available Erythranthe floribunda Joseph P. Tracy 1911-1 3364 Humboldt Kobyo ranch, Along road between three creeks and mouth of willow creek. 762 Comment
  SEINET13754736 Image available Erythranthe nasuta Joseph P. Tracy 1923-1 6218 Humboldt Kneeland Prairie 762 Comment
  CHSC42783  Erythronium californicum R. N. Raynor 1935-4-8 Humboldt Fort Seward. Comment
  UC1197639  Erythronium californicum Ethel Tracy 1906-4-15 Humboldt Harris Northern Coast Ranges 762 Comment
  HSC97457  Erythronium californicum C. Witte 2007-5-17 26 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  HSC15488  Erythronium citrinum var. citrinum E. C. Murczek 1964-4-4 29 Humboldt 8 mi. N of Hoopa Comment
  HSC98747  Erythronium grandiflorum Cara Witte 2008-6-2 664 Humboldt National Forest 1. 2 miles south of intersection with Forest Service Road 5N09. 1588 Comment
  UCD139647  Erythronium oregonum Suzanne E. May 1967-4-15 24 Humboldt on Kneeland Road, 7 miles east of Bridgeville. 213 Comment
  UC1197643  Erythronium revolutum Ethel Tracy 1907-5-4 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC16115  Eucalyptus globulus J. W. Bosworth 1965-5-14 51 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  HSC58806  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-7-31 11745 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  JEPS20485  Euchiton gymnocephalus Joseph P. Tracy 1935-7-20 14110 Humboldt near Blue Lake (on Trinity Highway); North Coast Ranges, Trinity Highway 274 Comment
  UC249819  Euchiton gymnocephalus Joseph P. Tracy 1923-4-1 6175 Humboldt near Blue Lake; Northern Coast Ranges 304 Comment
  CDA15444  Euchiton gymnocephalus R. Spadoni 1998-8-15 s.n. Humboldt North Coast; Eureka. Comment
  HSC37670  Euchiton gymnocephalus R. Sutherland 1976-8-13 9 .13876 Humboldt Old skid road. 259 Comment
  POM208999  Euonymus occidentalis Lincoln Constance 1934-6-11 855 Humboldt Cabin Creek bridge on Dyerville-Bull Creek Flat road. Humboldt Redwood Park. 52 Comment
  RSA24201  Euonymus occidentalis C. B. Wolf 1941-3-3 9996 Humboldt N. Coast Range, 3.3 miles W of Briceland on the road to Shelter Cove. 152 Comment
  UC34837  Euonymus occidentalis var. occidentalis Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC1198976  Euphorbia peplus Joseph P. Tracy 1936-4-5 16186 Humboldt Eureka 30 Comment
  HSC7993  Euphorbia peplus W. F. Nickel 1965-4-22 Humboldt H.S.U. campus on W side of Biological Science building Comment
  HSC76341  Eurybia radulina Michael Ericksen 1981-8-20 1075 Humboldt Near Van Duzen Public Campground 1000 Comment
  HSC9852  Festuca californica D. C. Juve 1964-5-16 36 Humboldt Campbell Cr. Ranger Station. Hwy. 96. Hillside above Trinity River Comment
  UCD65870  Festuca californica subsp. californica P. B. Kennedy 1923-8-2 Humboldt Near grade Bluff Creek to Arcata. Comment
  RSA121321  Festuca elmeri H. S. Yates 1936-6-17 5690 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  HSC26160  Festuca idahoensis J. P. Smith, Steve Selva 1970-6-30 4111 Humboldt Comment
  UC525635  Festuca idahoensis Joseph P. Tracy 1930-7-10 8867 Humboldt Brannan Mountain North Coast Ranges 1219 Comment
  HSC98580  Festuca occidentalis Cara Witte 2007-5-23 95 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1391 Comment
  UC1145212  Festuca occidentalis Joseph P. Tracy 1937-5-30 15305 Humboldt 5 mi n Blocksburg; Larrabee Creek 365 Comment
  UC525636  Festuca occidentalis Joseph P. Tracy 1932-7-17 10655 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC95257  Festuca rubra Andrea Pickart 2002-7-3 152 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  UC1132021  Festuca rubra H. S. Yates 1936-6-17 5688 Humboldt 1 mi w Bridgeville; Dyerville Quad. 182 Comment
  UC180345  Festuca rubra Joseph P. Tracy 1913-6-13 4097 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC9949  Festuca subuliflora L. M. Malloy 1965-5-20 32 Humboldt Old county dump, 5 mi. from Arcata on Fickle Hill Rd. Comment
  POM206179  Festuca subuliflora H. P. Chandler 1901-1 s.n. Humboldt Humboldt Bay. Comment
  HSC21494  Foeniculum vulgare H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  UC154220  Fragaria chiloensis J. P. Tracy 1906-4-29 2423 Humboldt Eureka, immediate vicinity of Comment
  HSC18619  Fragaria chiloensis D. E. Anderson 1962-3-30 1954 Humboldt Coastal area of Prairie Creek State Park Comment
  RSA46479  Fragaria chiloensis Doris K. Kildale 1927-3-24 2947 Humboldt Fleener Creek Comment
  HSC18611  Fragaria vesca J. C. Reppas 1963-4-11 37 Humboldt 820 Fickle Hill Rd. Comment
  HSC49077  Fragaria vesca J. O. Sawyer 1977-4-23 2845 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  JEPS44674  Fragaria virginiana Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  SBBG26931  Frangula californica subsp. californica D. K. Kildale 1927-7-3 Humboldt Willow Crk flat on Trinity River 152 Comment
  SEINET516308  Frangula purshiana Vernon H. Oswald 1998-4-16 8914 Humboldt Elk Head, N end of Trinidad State Beach. 30 Comment
  HSC102028  Frasera speciosa M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 930 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  CAS-BOT-BC217698  Fraxinus latifolia Doris K. Kildale 1927-5-13 3142 Humboldt Redwood Creek at Berry's 289 Comment
  HSC16192  Fraxinus latifolia J. R. Lippincott 1967-7-16 14 Humboldt 1.0mi S of Blue Lake in West End Rd. Comment
  SDSU19198  Fritillaria affinis Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3008 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.2 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  UC176688  Fritillaria affinis Joseph P. Tracy 1913-6-17 4179 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC98536  Fritillaria glauca Cara Witte 2008-6-9 698 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  UC2029548  Fumaria capreolata Richard R. Halse 2013-3-28 8767 Humboldt Eureka, weed area by a Texaco station near 3543 Broadway St. (U.S. Highway 101) and its intersection with McCullens Ave. Comment
  UCD121553  Galium ambiguum subsp. siskiyouense Frederic Hrusa 1993-6-17 11229 Humboldt Red Mountain. 1200 Comment
  POM367782  Galium bolanderi Anstruther Davidson 1919-7-1 3319 Humboldt Eel River Comment
  HSC19807  Galium californicum subsp. californicum Lauramay T. Dempster, G. L. Stebbins 1963-7-9 3849 Humboldt E of Bridgeville, 4.4 mi. on Hwy. 36 to Dinsmore 457 Comment
  HSC71598  Galium porrigens M. A. Baker 1980-6-26 2410 Humboldt Near Sims Creek 610 Comment
  POM60798  Galium trifidum Joseph P. Tracy 1906-8-18 2542 Humboldt Eureka. 0 Comment
  HSC39162  Galium triflorum D. E. Anderson, J. P. Smith 1971-6-28 - 1241 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC57320  Galium triflorum Overton, Butler 1979-7-23 9519 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC58074  Galium triflorum G. L. Clifton, Griswold 1979-8-1 11968 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  POM232037  Galium triflorum I. L. Wiggins 1930-7-22 4688 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  HSC41593  Galium triflorum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3597 Humboldt N of pond above Alder Springs Comment
  JEPS20468  Gamochaeta coarctata Joseph P. Tracy 1936-8-1 15057 Humboldt 6 mi se Blue Lake; Canyon Creek 365 Comment
  UC1199352  Gamochaeta ustulata Joseph P. Tracy 1918-7-6 5043 Humboldt South Fork of, near the Humboldt-Mendocino County line Eel River; Northern Coast Ranges, Eel River 152 Comment
  CAS-BOT-BC200579  Garrya buxifolia Carl B. Wolf 1930-10-24 1762 Humboldt Along Klamath River, 1 mile above mouth of Slate Creek 243 Comment
  HSC41276  Garrya buxifolia Brad Klipfel 1974-6-25 430 Humboldt Horse Mtn. Comment
  CAS-BOT-BC188530  Garrya elliptica Milo S. Baker 1927-8-16 2442 a Humboldt Samoa Comment
  CAS-BOT-BC188531  Garrya elliptica Doris K. Kildale 1925-5-25 6043 Humboldt Eureka Slough, Eureka Comment
  CAS-BOT-BC188533  Garrya elliptica Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  RSA245037  Garrya elliptica David K. Smith 1968-10-11 7 Humboldt 3 mi S of Trinidad. Comment
  UC1051597  Garrya fremontii Joseph P. Tracy 1948-9-12 18214 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC1174948  Garrya fremontii P. C. Everett and E. K. Balls 1959-10-24 23952 Humboldt Somesbar to Orleans (2.8 mi sw from Siskiyou-Humboldt County line) 198 Comment
  SEINET10559581  Gastridium phleoides Harley P. Chandler Chandler 1506 Humboldt Klamath River. 427 Comment
  HSC7819  Gaultheria ovatifolia D. E. Anderson 1965-6-1 3761 Humboldt Horse Mountain. 1220 Comment
  HSC12945  Gaultheria shallon Steve Dorei 1970-10-9 30 Humboldt Arcata, near NE entrance to Wildlife building on Humboldt State University campus Comment
  HSC41340  Gaultheria shallon Brad Klipfel 1974-9-7 560 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  HSC93253  Gaultheria shallon Gordon Leppig 1998-3-25 726 Humboldt Big Lagoon County Park, bank just E of bog 8 Comment
  UC1585409  Gaultheria shallon R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 32 Humboldt w of Hoopa (just e of Pine Ridge Summit, Bair Road); Bair Road 970 Comment
  UC535770  Gaultheria shallon Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  UCSB4793  Gaultheria shallon Keator, Glenn 1958-6-18 Humboldt Road between Bridgeville and Kneeland Comment
  JEPS27598  Gayophytum heterozygum Joseph P. Tracy 1936-8-8 15137 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC81905  Gayophytum humile Thomas W. Nelson 1979-7-11 4993 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC162854  Genista monspessulana J. P. Tracy 1906-4-22 2413 Humboldt immediate vicinity Eureka 0 Comment
  JEPS47046  Gentiana affinis var. ovata Joseph P. Tracy 1933-10-1 13078 Humboldt Big Lagoon 91 Comment
  RSA15567  Gentiana oregana Carl B. Wolf 1927-8-29 1194 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  JEPS76805  Gentiana plurisetosa Theodore F. Niehaus 1972-8-29 935 Humboldt 0.25 to 0.50 e on right side (s) Trinity Summit Station old horse trail (directly e from crossing of new forest road at Crogan Creek, a tributary of upper Tish-Tang a Tang Creek); Salmon Mts. 1706 Comment
  CAS-BOT-BC217408  Gentiana plurisetosa Theodore F. Niehaus 1972-8-29 s.n. Humboldt A few hundred yards east of the town of Hoopa Comment
  HSC12527  Gentiana sceptrum Wilbur Peterson 1970-10-17 54 Humboldt Big Lagoon Comment
  HSC37851  Geranium carolinianum Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  SEINET200731  Gilia capillaris Joseph P. Tracy 1933-7-25 12866 Humboldt Grouse Mtn. 1524 Comment
  POM127015  Gilia capitata P. E. Goddard 1907-6-5 116 Humboldt Van Duzen Comment
  UC774990  Gilia capitata subsp. capitata Carl B. Wolf 1937-8-13 9219 Humboldt on new road towards Trinity Summit 8 mi e Hoopa Valley; North Coast Range, e of Hoopa Valley 1219 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
  HSC104345  Gilia capitata subsp. pacifica James Regan, Humboldt Redwood Co., LLC 2004-6-3 4 Humboldt Kneeland, near Kneeland Airport 854 Comment
  CAS-BOT-BC225474  Gilia millefoliata Joseph P. Tracy 1936-5-30 14833 Humboldt Near Samoa on Humboldt Bay 6 Comment
  HSC16987  Gilia millefoliata Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
  UC1198625  Glaux maritima Joseph P. Tracy 1934-7-3 13303 Humboldt around Humboldt Bay (along Freshwater Slough); Northern Coast Region, Freshwater Slough 3 Comment
  HSC10077  Glyceria X occidentalis L. M. Malloy 1965-5-20 33 Humboldt On Fickle Hill Rd. 2 mi. from Arcata. Comment
  UC1145104  Glyceria grandis Joseph P. Tracy 1936-6-28 15024 Humboldt Lake Prairie; Bald Mountain 1066 Comment
  SEINET267680 Image available Glyceria occidentalis Gordon Leppig 1995-4-6 243 Humboldt Arcata; Alder Grove Pond. 12 Comment
  UC1223110  Gnaphalium palustre Joseph P. Tracy 1947-8-24 17919 Humboldt 0.5 mi w Water Dog Lakes; Trinity Summit, Box Camp Trail 1676 Comment
  SD88350  Gnaphalium purpureum Darley F. Howe 1972-6-30 Humboldt Trinidad Comment
  POM247280  Gnaphalium sphaericum Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta. 30 Comment
  RSA638984  Gnaphalium stramineum Percy C. Everett 1965-8-6 35171 Humboldt Samoa Dunes. 3 Comment
  HSC54861  Goodyera oblongifolia G. L. Clifton, Griswold 1979-7-25 10762 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC36646  Goodyera oblongifolia J. D. Ackerman 1975-9-15 742 Humboldt Arcata, behind Fern Ln. E of Humboldt State University Comment
  HSC98225  Goodyera oblongifolia A. M. Montalvo, J. D. Ackerman 1974-7-17 374 Humboldt About 7 mi. E of Carlotta, off Hwy. 36. Redwood Grove, E of Van Duzen Grove County Park. Van Duzen River Valley. 61 Comment
  RSA12431  Gratiola ebracteata Carl B. Wolf 1934-7-2 5863 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  CAS-BOT-BC304740  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt Salt marsh bordering Humboldt Bay at Arcata Comment
  CAS-BOT-BC304741  Grindelia hirsutula Edward Lee 1934-8-17 1148 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  CAS-BOT-BC304753  Grindelia hirsutula Marcus E. Jones 1931-7-16 29143 Humboldt Arcata Comment
  HSC66405  Grindelia hirsutula Ruby Van Deventer 1962-8-12 Humboldt Benbow Golf Course near South Fork of Eel River 122 Comment
  UC520422  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-9 3687 Humboldt 10 mi n Trinidad 1 Comment
  SEINET194315  Grindelia hirsutula var. davyi A. A. Heller 1923-7-7 13764 Humboldt Near the South Fork of the Eel River S of Garberville Comment
  RSA249328  Hackelia bella D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-13 5571 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  UC34534  Helenium bigelovii Chestnut and Drew 1888-8-7 Humboldt Lake Prairie Comment
  RSA18613  Helenium bolanderi C. B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. 6 Comment
  UC176474  Helenium bolanderi Joseph P. Tracy 1913-7-13 4355 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  UC525571  Heliotropium curassavicum Joseph P. Tracy 1927-6-26 8210 Humboldt Stone Lagoon Northern Coast Region, Stone Lagoon 6 Comment
  UC1239638  Heliotropium curassavicum Joseph P. Tracy 1938-8-28 16135 Humboldt Stone Lagoon Beach Comment
  UC204746  Helminthotheca echioides Joseph P. Tracy 1918-7-1 4969 Humboldt southwestern slopes fronting the ocean three mi s of point Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC96210  Hemizonella minima J. McIntire, S. Lyon 2005-6-10 10 Humboldt Ca. 0.7 mi. due W of Spike Buck Mtn. off F.S. Road NF1 1610 Comment
  HSC34997  Hemizonia congesta subsp. tracyi Thomas W. Nelson, James Nelson 1975-5-24 1851 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC5820  Hemizonia congesta subsp. tracyi R. Spellenberg 1965-6-14 1129 Humboldt Kneeland Prairie, at Kneeland Airport 6 mi. SE of Kneeland Comment
  UC495620  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1927-5-8 7983 Humboldt vicinity of Garberville 121 Comment
  CHSC1956  Heracleum lanatum A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  UC180240  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC642335  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad River 15 Comment
  UC673045  Heracleum lanatum Joseph P. Tracy 1940-9-26 16730 Humboldt s. end Humboldt Bay (Salmon Creek Valley); , Salmon Creek Valley 9 Comment
  HSC56237  Heracleum maximum Overton 1979-8-1 12321 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  UC1223122  Hesperevax acaulis var. robustior Joseph P. Tracy 1949-6-12 18312 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  UC165831  Hesperevax sparsiflora var. brevifolia Joseph P. Tracy 1905-4-30 2173 Humboldt Humboldt Bay Comment
  OBI12533  Hesperolinon micranthum Joseph P. Tracy 2011-7-6 3356 Humboldt Northern Coast Ranges. Mountain slopes along rd between Three crks and mouth of Willow crk Comment
  HSC74733  Heterocodon rariflorum Gail Newton 1981-7-24 2318 Humboldt Near Chaparral Mtn. 1433 Comment
  JEPS45034  Heteromeles arbutifolia Joseph P. Tracy 1925-12-6 7338 Humboldt 3 mi w Bridgeville; Northern Coast Ranges, Van Duzen River 228 Comment
  RSA0072456  Heteromeles arbutifolia Percy C. Everett, E. K. Balls 1959-10-24 23951 Humboldt 6 mi SW from Siskiyou-Humbolt county line, Somesbar to Orleans. 152 Comment
  UC480921  Heterotheca oregona var. compacta Harley P. Chandler 1901-6-1 1430 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  CAS-BOT-BC311056  Heterotheca oregona var. oregona A. A. Heller 1924-7-20 13866 Humboldt Along the Eel River at Phillipsville Comment
  HSC39159  Heuchera micrantha D. E. Anderson, J. P. Smith 1971-6-28 - 1247 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  JEPS43498  Heuchera micrantha Lincoln Constance 1934-5-26 680 Humboldt South Fork Eel River (North Dyerville Flat Grove, near Founders Tree); Bull Creek Region 48 Comment
  HSC56073  Heuchera rubescens G. L. Clifton, Griswold 1979-7-31 11744 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC81906  Heuchera rubescens Thomas W. Nelson 1979-7-11 4991 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC58215  Hieracium albiflorum Walter Overton 1979-8-1 12352 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1223082  Hieracium albiflorum Joseph P. Tracy 1947-7-9 17850 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC312389  Hieracium albiflorum Doris K. Kildale 1925-7-5 1022 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  HSC57940  Hieracium greenei G. L. Clifton, Griswold 1979-7-31 11607 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC66826  Hieracium greenei Gail Newton 1980-7-15 1579 Humboldt Near Sims Mtn. 1311 Comment
  HSC44090  Hieracium greenei Thomas W. Nelson, Jane P. Nelson 1977-8-6 3714 Humboldt Along the lower S slope of Mt. Lassic (Signal Peak) 1494 Comment
  UC582422  Hieracium nudicaule Joseph P. Tracy Jul 16 1930-Jul 19 1930 9041 Humboldt near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC167083  Hierochloe occidentalis Joseph Burtt Davy 1899-6-11 5424 Humboldt Elk Prairie Comment
  UC205670  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt around Humboldt Bay (old Kneeland Road); Northern Coast Ranges 304 Comment
  CHSC23327  Hippuris vulgaris Robert F. Thorne; P. Everett 1965-8-9 35344 Humboldt Along Hwy. 101 about 3 mi. N of Eureka; in shallow water ca. 1 ft. of ditch along roadside. 1 Comment
  UC1196930  Hippuris vulgaris Joseph P. Tracy 1934-7-2 13284 Humboldt mouth of Little R. 1 Comment
  UCD115146  Hirschfeldia incana Joseph P. Tracy 1931-5-21 9434 Humboldt Eel River, Alton to Fortuna. 15 Comment
  CAS-BOT-BC280738  Holcus lanatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC38838  Holcus lanatus R. Sutherland 1976-8-6 19 .6876 Humboldt Briceland. 183 Comment
  HSC79451  Holcus lanatus Kenneth Clark 1980-6-14 673 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  JEPS71225  Holcus lanatus William S. Cooper 1925-7-29 121 Humboldt Samoa Comment
  HSC18669  Holodiscus discolor H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC18682  Holodiscus discolor H. E. Parks, S. T. Parks Jun 1927 257 Humboldt Hartsook 122 Comment
  HSC40499  Holodiscus discolor Thomas W. Nelson, James Nelson 1976-7-26 3043 Humboldt E side of middle peak of Mount Lassic group, Signal Peak 1738 Comment
  HSC57162  Holodiscus discolor Overton, Butler 1979-7-26 9962 Humboldt Near Willow Creek, close to the town of Willow Creek 1326 Comment
  HSC58138  Holodiscus discolor Gilbert Muth 1979-8-1 12156 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC98777  Holodiscus discolor Cara Witte 2007-8-8 623 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  HSC37949  Hordeum brachyantherum Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  UC682044  Hordeum brachyantherum subsp. brachyantherum G. L. Stebbins Jr. and G. L. Church 1941-5-26 3103 Humboldt Eureka, N end of city Comment
  UC187307  Hordeum murinum subsp. leporinum Joseph P. Tracy 1911-6-25 3243 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC902137  Horkelia californica Joseph P. Tracy 1942-9-20 17323 Humboldt 2 mi s town (along edges of foothills); Field's Landing 6 Comment
  RSA259582  Horkelia tridentata subsp. flavescens D. E. Anderson 1972-6-20 s.n. Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  HSC74130  Horkelia tridentata var. flavescens R. York 1980-5-23 616 Humboldt Near Buck Mtn. 1524 Comment
  BLMAR165  Hosackia crassifolia Donald Hazlett 1994-6-7 165 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC100883  Hosackia gracilis Carl C. Marshall Apr 1885 113 Humboldt Coast region everywhere. Comment
  UCD128229  Hydrocotyle ranunculoides Linda M. Barker 1976-8-2 1704 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC57649  Hydrophyllum occidentale G. L. Clifton, Griswold 1979-7-25 10819 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC35528  Hydrophyllum occidentale Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  JEPS1642  Hydrophyllum tenuipes W. L. Jepson 1934-5-7 16691 Humboldt Bull Creek Comment
  HSC13844  Hypericum perforatum F. Morrell 1949-5-14 22 Humboldt Weitchpec Comment
  CAS-BOT-BC401229  Hypericum perforatum Doris K. Kildale 1928-6-24 7061 Humboldt Redwood Creek at Berry's Comment
  SEINET10755374  Hypericum perforatum J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13015 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  UCD110368  Hypericum perforatum subsp. perforatum David Board 1920-9-1 s.n. Humboldt Lone Star Ranch, Iaqua. Comment
  CAS-BOT-BC123474  Iliamna latibracteata Doris K. Kildale 1926-7-5 2312 Humboldt Prairie Creek, near Davidson's. Comment
  UC902184 Image available Iliamna latibracteata Joseph P. Tracy 1948-8-15 18151 Humboldt near Elk Camp, on Ridge 2 miles east of Grove's Prairie; Trinity Summit. 1493 Comment
Read comments
Feb 27 2012
  BLMAR694  Impatiens glandulifera Jennifer Wheeler 2013-8-13 694 Humboldt Humboldt County, Bayside Road, just north of church 6 Comment
  POM65044  Ipomopsis aggregata subsp. formosissima P. E. Goddard 1906-06 683 Humboldt Lasseck Pk. Comment
  HSC13893  Iris douglasiana W. F. Nickel 1965-4-23 Humboldt 10 mi. N of Arcata at Moonstone Beach Comment
  JEPS86128  Iris douglasiana Wayne Roderick 1966-5-5 Humboldt ca 2 mi e Carlotta 30 Comment
  CAS-BOT-BC123359  Iris humboldtiana Alice Eastwood; John Thomas Howell 1937-6-24 4857 Humboldt Road to Horse Mt. Comment
  RSA135894  Iris purdyi Lee W. Lenz 1953-5-17 18320 Humboldt 4.5 miles west of Willow Creek, Highway 299 Comment
  SD90234  Iris purdyi Benjamin C. Stone 1952-6-23 142 Humboldt Dense redwood forest in Humboldt Redwoods State Park. Comment
  UC1222674  Iris purdyi Joseph P. Tracy 1950-7-1 18950 Humboldt Friday Ridge, at Friday Camp, Grouse Mountain Friday Ridge; North Coast Ranges, Grouse Mountain 1219 Comment
  HSC66479  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-9 450 Humboldt FS Rd. 12N20, 1.5 mi. W of its junction with FS Rd. 15N01, Orleans 793 Comment
  HSC32883  Iris tenuissima Thomas W. Nelson, James Nelson 1973-5-28 935 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC13903  Iris tenuissima Francis Winter 1960-4-24 Humboldt 7 mi. W of Hoopa Indian Reservation, Bair Rd. 915 Comment
  CAS-BOT-BC88654  Isatis tinctoria J. H. Thomas 1949-6-12 900 Humboldt Near Klamath River, about 0.5 mile north of town of Orleans. Comment
  UC667944  Isoetes howellii Joseph P. Tracy 1935-5-25 13842 Humboldt Fort Seward 106 Comment
  JEPS60151  Isoetes nuttallii Joseph P. Tracy 1935-5-25 13841 Humboldt Fort Seward 106 Comment
  CHSC57145  Isolepis cernua L. P. Janeway 1983-9-24 700 Humboldt 10-30 ft from water line of Big Lagoon at county campground (south corner of the lagoon). 3 Comment
  HSC77918  Isolepis cernua L. P. Janeway, Paul Wilson 1984-5-25 819 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  HSC7447  Isolepis cernua D. E. Anderson 1961-9-13 1817 Humboldt 1 mi. S of Trinidad Comment
  HSC5881  Jaumea carnosa David K. Smith 1968-11-9 55 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  CDA8060  Jaumea carnosa T. C. Fuller 1961-9-27 7044 Humboldt West of Highway 101, 1 mile north of Indianola Road, 5 miles north of Eureka. 0 Comment
  RSA246906  Jaumea carnosa R. F. Thorne, P. Everett 1965-8-8 35279 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  UC668200  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt mouth Eel River (salt marsh) 3 Comment
  HSC76533  Juncus balticus subsp. ater Teresa Prendusi 1981-7-23 340 Humboldt Near Black Mtn. 890 Comment
  HSC23673  Juncus bolanderi Tim Baroni 1971-6-25 56 Humboldt Comment
  SEINET3878826  Juncus effusus var. pacificus Thomas Nelson 1974-7-20 1695 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC56988  Juncus ensifolius Walter Overton, Marvin Butler 1979-7-23 9551 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  RSA246769  Juncus falcatus subsp. sitchensis Robert F. Thorne, Percy C. Everett 1965-8-7 35175 Humboldt Big Lagoon. 2 Comment
  JEPS63872  Juncus hesperius Henry Melde 1902-2-8 Humboldt Eureka Comment
  SEINET11789588  Juncus hesperius J. P. Tracy 1938-1 15938 Humboldt vicinity of Carlotta, 2 mi E of town 30 Comment
  RSA246772  Juncus nevadensis var. inventus Robert F. Thorne, Percy C. Everett 1965-8-9 35312 Humboldt Big Lagoon. 3 Comment
  UC1151997  Juncus occidentalis Joseph P. Tracy 1937-8-12 15641 Humboldt Snow Camp 1402 Comment
  UC183768  Juncus occidentalis Joseph P. Tracy 1911-7-7 3369 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC419021  Juncus phaeocephalus H. E. Parks and J. P. Tracy 1924-8-3 Humboldt Big Lagoon Comment
  CAS-BOT-BC154066  Juncus planifolius Peter F. Zika 2008-10-19 24229 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  CAS-BOT-BC235889  Keckiella corymbosa Joseph P. Tracy 1933-9-9 13074 Humboldt Along S. Fork of Eel River. Vicinity of Garberville 121 Comment
  SBBG66501  Keckiella corymbosa L. Rowntree 1931-7-21 Humboldt Mattole River bridge, near Petrolia Comment
  UC1222788  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19314 Humboldt 1 mi s mouth of Salmon River (along e side of Salmon River); Klamath River Comment
  CAS-BOT-BC237834  Keckiella lemmonii Joseph P. Tracy 1930-7-25 8883 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1222465  Keckiella lemmonii Joseph P. Tracy 1939-8-16 16425 Humboldt near Grouse Mountain; Friday Ridge 1219 Comment
  HSC61761  Kickxia elatine Ruby Van Deventer 1963-7-14 Humboldt Along the Klamath River at Pecwan Comment
  UC187283  Koeleria macrantha Joseph P. Tracy 1905-6-11 2195 Humboldt bluff back Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC27904  Kopsiopsis strobilacea Harley P. Chandler June 1901 1468 A Humboldt North Coast Ranges, Klamath River. 304 Comment
  UC552225  Lactuca biennis Joseph P. Tracy 1935-7-21 14118 Humboldt mouth Bremer Creek (near Willow Creek); Trinity River Valley 152 Comment
  CHSC79684  Lamiastrum galeobdolon Gordon Leppig; Kai Neander 2000-4-13 1292 Humboldt Arcata. 100 m south of trail 5 and 10 intersection. UTM zone 10, 4527N, 40E. 91 Comment
  UC1239674  Lamium purpureum Ralph Ferguson 1948-4-12 Humboldt Eureka; in district s of Harris Street 45 Comment
  CDA5658  Lamium purpureum B. F. Kemp 1958-4-11 344 -58 Humboldt County Road 512, near sawmill. 0 Comment
  RSA170204  Lapsana communis Joseph P. Tracy 1944-7-3 17482 Humboldt Graham's Peach Orchard. Trinity River Valley at Willow Creek. 152 Comment
  CAS-BOT-BC337991  Lasthenia californica Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC337993  Lasthenia californica L. B. Kildale 1930-6-1 9767 Humboldt Klamath River at Bluff Creek Comment
  UC1199076  Lathyrus glandulosus Joseph P. Tracy 1930-8-24 9170 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1368670  Lathyrus glandulosus J. P. Tracy 1946-5-19 17530 Humboldt Kneeland, at Cameron Hill Kneeland; , Cameron Hill 670 Comment
  HSC26882  Lathyrus latifolius Clifton Raymond Chesbrough 1973-6-19 89 Humboldt 0.5 mi. S of Trinidad along the coast Comment
  RSA0049750  Lathyrus littoralis Dean Wm. Taylor 2013-5-9 21346 Humboldt Highway 101 about 5 road miles South of Orick, beach west of the highway, opposite Freshwater Lagoon 2 Comment
  HSC39108  Lathyrus nevadensis var. nevadensis D. E. Anderson, J. P. Smith 1971-7-6 Humboldt Horse Mtn. Comment
  POM312874  Lathyrus palustris Malcolm A. Nobs, S. G. Smith 1949-8-3 1187 Humboldt Southern outskirts of Eureka Comment
  UC709414  Lathyrus palustris Joseph P. Tracy 1940-9-26 16727 Humboldt Eureka Comment
  UCD106338  Lathyrus palustris Malcolm A. Nobs; S. Galen Smith 1949-8-3 1187 Humboldt Southern outskirts of Eureka. Comment
  POM277780  Lathyrus polyphyllus Lyman Benson 1930-7-18 2189 Humboldt Arcata 457 Comment
  UCD106657  Lathyrus torreyi K. Esau 1934-5-8 s.n. Humboldt Redwood Highway near Scotia. Comment
  UC1199065  Lathyrus torreyi Joseph P. Tracy 1921-4-24 5478 Humboldt near Myers; Northern Coast Ranges, South Fork of Eel River 60 Comment
  SBBG3374  Lathyrus vestitus H. and M. Dearing 1939-5-24 3420 Humboldt Dyerville-Mattole Rd Pass, W of Panther Gap Comment
  UC162788  Lathyrus vestitus Joseph P. Tracy 1906-6-24 2498 Humboldt near Field's Landing (s slope of Humboldt Hill); Northern Coast Region, Humboldt Bay Region, Humboldt Hill 0 Comment
  UC931760  Lathyrus vestitus C. L. Hitchcock 1949-6-8 19087 Humboldt 1 mi se Willow Creek (along Highway 299) Comment
  HSC5912  Layia carnosa L. H. Myers 1963-5-13 15 Humboldt Dunes W of Lanpheres Rd., Mad River Slough area. Comment
  UC165025  Layia carnosa J. P. Tracy 1901-4-14 1017 Humboldt opp. Eureka Samoa Comment
  UC495637  Layia carnosa Joseph P. Tracy 1932-5-16 10106 Humboldt near Samoa; Humboldt Bay 6 Comment
  UC1223219  Layia gaillardioides Joseph P. Tracy 1950-6-8 187860 Humboldt Petrolia Comment
  UC1199163  Lepidium densiflorum Joseph P. Tracy 1938-7-15 16066 Humboldt Mouth of Eel River 3 Comment
  UC161582  Lepidium latipes Joseph P. Tracy 1902-6-3 1644 Humboldt near Harris (hill top at Spruce Grove); Northern Coast Ranges, Spruce Grove 914 Comment
  UC492269  Lepidium nitidum Joseph P. Tracy 1928-3-24 8407 Humboldt 3 mi s Point of Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  UCD115824  Lepidium nitidum Joseph P. Tracy 1948-5-31 17990 Humboldt Harris. 762 Comment
  HSC6836  Lepidium perfoliatum Anonymous 1957-5-12 150 Humboldt 1 mi. S of Fields Landing Comment
  UC1116217  Lepidium strictum Joseph P. Tracy 1946-5-4 17433 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA152321  Lepidium strictum Joseph P. Tracy 1946-5-30 17540 Humboldt Vicinity of Carlotta. 30 Comment
  UC205477  Lepidium virginicum var. pubescens Joseph P. Tracy 1919-5-31 5145 Humboldt near Willow Creek mouth (tributary of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC226526  Leptosiphon acicularis Doris K. Kildale 1926-4-25 1800 Humboldt Willow Creek Flat 152 Comment
  HSC45057  Leptosiphon androsaceus R. Sutherland 1978-4-24 9 .24478 Humboldt 323 Comment
  HSC45590  Leptosiphon androsaceus Diane L. Reed 1978-5-27 126 Humboldt Horse Mtn., on Titlow Hill Rd. 1.5 mi. from junction with Hwy. 299 Comment
  HSC71061  Leptosiphon bicolor Thomas W. Nelson, Jane P. Nelson 1980-5-30 3395 Humboldt McKeown Ranch along rd. to Anderson's Ford 854 Comment
  HSC74229  Leptosiphon ciliatus M. A. Baker 1980-7-15 2958 Humboldt Near Whiting Ridge. 1341 Comment
  UC1225825  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt 2 mi n Harris 609 Comment
  UC34537  Lessingia nemaclada Hy-Am Pum 1888-7-23 Humboldt Comment
  CAS-BOT-BC334618  Leucanthemum vulgare Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon Comment
  HSC73865  Lewisia nevadensis M. A. Baker 1980-6-28 2500 Humboldt Near Mad River Buttes 1445 Comment
  JEPS5878  Lewisia triphylla Joseph P. Tracy 1935-7-24 14178 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  RSA249431  Lewisia triphylla D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5597 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC1100250  Leymus X vancouverensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1204 Humboldt ca 2 mi n Eureka (salt marshes bordering bay); Humboldt Bay Comment
  UC526793  Leymus X vancouverensis Joseph P. Tracy 1927-6-26 8214 Humboldt Stone Lagoon Northern Coast Region 6 Comment
  RSA129556  Leymus mollis subsp. mollis H. S. Yates 1936-6-18 5727 Humboldt Near mouth of Little River 5 Comment
  HSC99522  Ligusticum apiifolium K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 185 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1197176  Ligusticum apiifolium J. P. Tracy 1906-11-4 2554 Humboldt immediate vicinity Eureka (Rick's Prairie); Rick's Prairie 0 Comment
  JEPS17504  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  HSC74191  Ligusticum californicum M. A. Baker 1980-7-22 3120 Humboldt Near Grogan Hole. 1676 Comment
  JEPS14253  Ligusticum californicum Joseph P. Tracy 1937-8-12 15633 Humboldt Snow Camp 1402 Comment
Read comments
May 25 2012
  HSC56325  Ligusticum grayi Overton, Butler 1979-8-2 12668 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC21522  Lilaeopsis occidentalis D. E. Anderson 1962-7-14 2272 Humboldt W edge of Freshwater Lagoon Comment
  RSA135355  Lilium Volney Rattan 1879-1 s.n. Humboldt Klamath Comment
  UC1035026  Lilium columbianum A. M. Vollmer and L. Beane Jul 1953 121 Humboldt Comment
  UC1198237  Lilium pardalinum Joseph P. Tracy 1908-6 2868 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UCSB698  Lilium pardalinum Phillips, Priscilla 1958-6-7 Humboldt On Highway 101, 14.1 mi. south of Prairie Creek Redwoods State Park (north of Trinidad) Comment
  CAS-BOT-BC132960  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-1 147 Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  CAS-BOT-BC132961  Lilium rubescens Milo S. Baker 1927-8-14 2428 a Humboldt Summit of Ridge West of Bull Cr. Comment
  CAS-BOT-BC132963  Lilium rubescens Doris K. Kildale 1926-5-16 2001 Humboldt Miranda on South Fork of Eel River Comment
  CAS-BOT-BC133012  Lilium washingtonianum subsp. purpurascens Doris K. Kildale 1928-7-9 5697 Humboldt Bug Creek, Chaparral Mountain 914 Comment
  SEINET6950811  Limnanthes douglasii Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1198595  Linanthus androsaceus Joseph P. Tracy 1940-5-17 16553 Humboldt Larrabee Valley 731 Comment
  UC1197835  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1933-8-6 12939 Humboldt French Camp Ridge 1066 Comment
  POM203675  Linaria vulgaris I. L. Wiggins 1932-7-19 5890 Humboldt Roadside near Trinidad Head, Comment
  HSC99473  Linnaea borealis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 127 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC79358  Linum bienne Kenneth Clark 1980-4-18 595 Humboldt Above Dead Man's Gulch. 168 Comment
  UC1103631  Lipocarpha occidentalis Joseph P. Tracy 1920-8-15 5368 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  UC1103026  Listera cordata Joseph P. Tracy 1924-5-11 6687 Humboldt Bull Creek Flat Northern Coast Ranges 91 Comment
  JEPS38043  Lithocarpus densiflorus Lincoln Constance 1934-6-8 839 Humboldt Cow Creek fire-trail South Fork Eel River, Bull Creek Region (from Bull Creek road, n over the divide, into the headwaters of Bear Creek) Comment
  UC1196368  Lithocarpus densiflorus Joseph P. Tracy 1923-5-13 6201 Humboldt Strongs Station Northern Coast Ranges (forest on Van Duzen River) 60 Comment
  POM106448  Lithocarpus densiflorus var. densiflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  RSA174006  Lithocarpus densiflorus var. densiflorus Robert F. Thorne 1957-9-2 19010 Humboldt Sandy margin of branch of the Eel River at Burlington State Park, just S of Weott. Comment
  UC1196491  Lithophragma affine Harold E. Parks and Joseph P. Tracy 1942-5-16 11558 B Humboldt vicinity Garberville; vicinity of Garberville 152 Comment
  UC667095  Lithophragma affine Joseph P. Tracy 1933-5-14 12174 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC98097  Lithophragma campanulatum Cara Witte, Michael Scott 2007-6-22 344 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1494 Comment
  UC1196494  Lithophragma campanulatum Joseph P. Tracy 1932-7-18 10700 Humboldt head of Brett Hole Trinity Summit; Klamath Mountains, , head of Brett Hole 1828 Comment
  UC154139  Lithophragma campanulatum Mrs. M. H. Manning May 1902 Humboldt near Hupa; near Hupa Comment
  HSC97506  Lithophragma parviflorum var. parviflorum C. Witte 2007-5-22 80 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  UCD66191  Lolium multiflorum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Around Fields Landing. Comment
  HSC10304  Lolium perenne W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  HSC74113  Lolium perenne M. A. Baker 1980-6-16 1941 Humboldt Near Monks Camp. 1097 Comment
  UCD66658  Lolium temulentum A. H. Murphy 1947-5-12 Humboldt Fairgrounds at Ferndale. Comment
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May 24 2012
  HSC45394  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3582 Humboldt Along W side of road N of Alder Springs, head of N Fork of Conley Creek 1280 Comment
  HSC82019  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, James Nelson 1980-6-10 5396 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  JEPS17125  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1902-6 1891 Humboldt Fort Seward Ranch ridge (= Mail Ridge) 1066 Comment
  HSC55624  Lomatium macrocarpum Overton, Butler 1979-7-24 9575 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  UC906635  Lomatium macrocarpum Joseph P. Tracy 1947-7-5 17780 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  UC1197155  Lomatium macrocarpum Joseph P. Tracy 1937-7-24 15522 Humboldt head of Devil's Hole (Trinity Summit); , Devil's Hole 1676 Comment
  UC412762  Lomatium macrocarpum Joseph Burtt Davy and Walter C. Blasdale 1899-7-19 5667 Humboldt Hoopa Mt. Comment
  HSC63089  Lomatium martindalei M. A. Baker 1979-7-6 1013 Humboldt 0.6 k. W of FS 15N01 on FS 12N16 toward Bald Mtn. Comment
  HSC44441  Lomatium tracyi Barbara Kelly 1978-5-1 592 Humboldt Intersection with road sign saying Grouse Mtn. Lookout 2 mi., Horse Mtn. 15 mi. Comment
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Jan 16 2014
  HSC48474  Lomatium triternatum J. P. Smith, J. O. Sawyer, J. Cole 1978-5-21 9933 Humboldt Six Rivers Natl. Forest, along Ishi Pishi Rd., 1.5 mi. from the Ishi Pishi Bridge over the Klamath River 305 Comment
  UC183624  Lomatium utriculatum Joseph P. Tracy 1912-6-9 3671 Humboldt Northern Coast Region, Alton 30 Comment
  HSC58307  Lonicera conjugialis Overton, Butler 1979-8-2 12589 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1222488  Lonicera conjugialis Joseph P. Tracy 1951-6-16 19483 Humboldt summit of the Siskiyous at crossing of Takilma-Happy Camp Road Siskiyous Comment
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Jul 31 2012
  UC602562  Lonicera conjugialis Joseph P. Tracy 1930-7-19 9094 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  RSA171943  Lonicera hispidula var. vacillans R. F. Thorne 1957-9-2 19002 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  HSC3923  Lonicera involucrata var. ledebourii J. J. Wagoner 1965-4-3 12 Humboldt 16 mi. N of Trinidad, W of Hwy. 101 in Dry Lagoon State Beach Park. 8 Comment
  HSC49823  Lonicera involucrata var. ledebourii R. York 1979-4-13 226 Humboldt Big Lagoon Bog. Comment
  HSC77902  Lonicera involucrata var. ledebourii L. P. Janeway 1984-5-16 797 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. N of the boat ramp. 5 Comment
  RSA47121  Lonicera involucrata var. ledebourii Doris K. Kildale 1926-4-9 1740 Humboldt Samoa road, sandy peninsula. Comment
  SBBG7361  Lonicera involucrata var. ledebourii M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  UC1125285  Lonicera involucrata var. ledebourii A. E. Wieslander 1931-5-22 215 Humboldt hills s Ferndale; Cape Fortuna Quadrangle Comment
  UC1239558  Lonicera involucrata var. ledebourii Joseph P. Tracy 1933-5-20 12219 Humboldt Capetown Bear River 30 Comment
  UC179940  Lotus aboriginus Joseph P. Tracy 1914-9-6 4599 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  SEINET12154181  Lotus aboriginus J. P. Tracy 1949-1 18321 Humboldt nr Boynton PRairie 12miSE of Arcata Comment
  UCSB30598  Lotus corniculatus Edwards, David 1974-7-13 Humboldt North side of 7th St. just W of its overpass of U.S. 101, Arcata 18 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
  UC1197309  Lotus crassifolius var. crassifolius Joseph P. Tracy 1911-7-7 3416 Humboldt between Willow Creek and Campbell Creek (vis ridge n of Willow Creek, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC162607  Lotus crassifolius var. crassifolius Harley P. Chandler Jun 1901 1470 Humboldt Orleans Bar to Sommes Bar; North Coast Ranges 365 Comment
  UC179922  Lotus denticulatus Joseph P. Tracy 1914-6-14 1240 Humboldt near Hydesville; Northern Coast Ranges, Van Duzen River, Yager Creek 30 Comment
  UC33503  Lotus formosissimus Chesnut and Drew 1888-7-8 Humboldt near Campbell's Comment
  JEPS55511  Lotus humistratus W. L. Jepson 1902-6-20 1897 Humboldt Ft. Seward Ranch Ridge (= Mail Ridge) Mail Ridge 1219 Comment
  UC1197297  Lotus micranthus Joseph P. Tracy 1911-7-7 3435 Humboldt viz ridge n of Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  CDA27277  Lotus micranthus E. C. Whitney 1959-5-6 Humboldt Highway 101, south of Eureka. (Brown property) 0 Comment
  POM19457  Lotus micranthus Joseph P. Tracy 1917-5-30 4795 Humboldt Ocean Beach at mouth of Little River Comment
  UC179938  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1914-7-4 4527 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  SEINET3694458 Image available Lotus pinnatus Joseph P. Tracy 1937-7-19 15461 Humboldt Larrabee Valley 732 Comment
  JEPS55767  Lotus purshianus var. purshianus Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  SEINET3560045 Image available Lotus stipularis var. subglaber Joseph P. Tracy 1914-7-5 4576 Humboldt Bald Mountian, between High Prairie and Snow Camp 1219 Comment
  HSC57342  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-26 10118 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC162837  Lotus wrangelianus Joseph P. Tracy 1903-5-23 1901 Humboldt Alder Point, along Eel River Northern Coast Ranges, Eel River 152 Comment
  UC1223411  Lotus yollabolliensis Joseph P. Tracy 1941-8-28 17048 Humboldt near Blake Lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  CAS-BOT-BC198268  Lupinus Wm. Bridge Cooke 1946-6-11 17370 Humboldt Roadside 1 mi. N of Eureka Comment
  CAS-BOT-BC201189  Lupinus Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  UC1223277  Lupinus adsurgens Joseph P. Tracy 1933-7-26 12912 Humboldt Grouse Mountain, top of mountain 1630 Comment
  UC146385 Image available Lupinus adsurgens Chesnut and Drew 1888-7-21 Humboldt w slope S. Fork Mt.; ; S Fork Mt., Humboldt Co. Comment
  JEPS64913  Lupinus albifrons Joseph P. Tracy 1916-6-19 4707 Humboldt on high ridges at Robertson Ranch; Northern Coast Ranges, Burr Creek 914 Comment
  HSC50953  Lupinus andersonii G. L. Clifton, Overton 1979-6-3 3777 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  CAS-BOT-BC196399  Lupinus arboreus R. J. Mastrogiuseppe; J. D. Mastrogiuseppe 1974-9-3 178 Humboldt On sand dunes of Clam Beach Comment
  CHSC10105  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata. In the dune fields, Christenson Farm, Samoa Peninsula. Comment
  HSC37859  Lupinus arboreus Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  SBBG115192  Lupinus arboreus D. Leaberry 1992-6-20 Humboldt Clam Beach County Park, 1 mi N of Arcata Airport on Hwy 101 Comment
  UCD106590  Lupinus arboreus Linda M. Barker 1976-5-13 1474 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET10488455  Lupinus arboreus Michael Currier 1984-7-9 Currier 59 Humboldt Along ocean fromt at clam beach, 6 miles n of arcata; hwy 101. Penstemon sp., And gramineae Comment
  SEINET10488462  Lupinus arboreus Charles R. Gunn 1963-6-2 Gunn 2697 Humboldt Vacant lot n of trinidad school. 3 Plants. 5-6 Ft tall Comment
  POM349994  Lupinus benthamii var. benthamii Vera Townsend 1934-3-24 s.n. Humboldt Near Sequoia Comment
  HSC103986  Lupinus bicolor E. R. Fyer 2015-4-26 26 Humboldt Eureka; vacant lot off Waterfront Drive 3 Comment
  HSC36191  Lupinus constancei Thomas W. Nelson 1973-7-10 1017 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  HSC58680  Lupinus latifolius G. L. Clifton, Griswold 1979-8-2 12238 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC63291  Lupinus latifolius subsp. viridifolius M. A. Baker 1979-6-27 936 Humboldt Drainage E of Oregon Creek. Comment
  HSC97959  Lupinus latifolius subsp. viridifolius Cara Witte 2007-6-21 323 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  UC15889  Lupinus latifolius var. latifolius Harley P. Chandler June, 1901 1365 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC865228  Lupinus latifolius var. latifolius Elizabeth Parsons Hawver June 1915 Humboldt Carlotta Comment
  HSC95097  Lupinus littoralis Andrea Pickart 2002-7-3 151 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  SD53194  Lupinus littoralis Darley F. Howe 1962-5-22 3259 Humboldt 0.5 mile north of Orick on Highway 101. 29 Comment
  UC198577  Lupinus littoralis Joseph P. Tracy 1917-5-26 4785 A Humboldt Bucksport Northern Coast Ranges, , Bucksport (Eureka) 0 Comment
  UC667008  Lupinus nanus Joseph P. Tracy 1939-4-29 16231 Humboldt Hoopa Valley 106 Comment
  UC170031  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1912-7-21 3784 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC1197252  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1897-6-23 202 Humboldt Elk River Valley Northern Coast Region, Humboldt Bay Region, Elk River Valley (region about Humboldt Bay) 0 Comment
  SEINET12154709  Lupinus rivularis J. P. Tracy 1934-1 13482 Humboldt Samoa Sand Dunes Comment
  SEINET3069359 Image available Lupinus tracyi J. P. Tracy 1932-7-15 10598 Humboldt on ridges east on Corral Prairie, Trinity Summit Comment
  UC502994 Image available Lupinus tracyi Joseph P. Tracy 1932-7-15 10598 Humboldt ridges e Corral Prairie; Klamath Mountains; ridges E of Corral Prairie, Trinity Summit, Klamath Mts., Humboldt Co. 1828 Comment
  SD53197  Lupinus variicolor Darley F. Howe 1962-5-21 Humboldt 11.5 miles north of Garberville on Hwy 101 91 Comment
  HSC56410  Luzula comosa Griswold, Butler 1979-7-11 7044 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC56946  Luzula comosa Overton, Butler 1979-7-23 9436 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UCD142058  Luzula comosa Linda M. Barker 1976-6-14 1596 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC98824  Luzula comosa Cara Witte 2007-5-24 117 Humboldt Along National Forest 1. Approximately 1 mile south of intersection to Horse Mountain Mine and Communication Towers. 1412 Comment
  RSA168865  Luzula comosa Joseph P. Tracy 1951-6-26 19546 Humboldt Snow Camp Meadow. Comment
  UC1152143  Luzula comosa Joseph P. Tracy 1951-6-26 19550 Humboldt at Snow Camp; in fir woods at Snow Camp Comment
  CAS-BOT-BC441226  Luzula macrantha L. P. Janeway 1984-6-17 846 Humboldt On ridge east of Horse Mountain 1432 Comment
  CAS-BOT-BC441227  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt North Coast Ranges: Willow Creek Canyon, near Ruby Creek 609 Comment
  SEINET8717647 Image available Luzula multiflora Harold E. Parks, Joseph P. Tracy 1947-1 11643 Humboldt McKay Camp. South Fork Mountain 1676 Comment
  UC249748  Luzula parviflora Joseph P. Tracy 1923-6-24 6360 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, , nr High Prairie 1066 Comment
  UC1103680  Luzula parviflora Joseph P. Tracy 1925-6-7 7056 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC1103686  Luzula subsessilis Joseph P. Tracy 1921-4-24 5449 Humboldt Northern Coast Ranges. Phillipsville Flat South Fork Eel River 91 Comment
  CAS-BOT-BC61930  Lycopodium clavatum Ethel Wickes 1923-3-1 s.n. Humboldt unspecified Comment
  RSA210023  Lycopodium clavatum H. E. Parks, W. C. Parks 1932-7-30 1132 Humboldt Camp 21, Hammond Lumber Compant. Trinidad. Humboldt County. Altitude 500 feet. 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
  CHSC57533  Lysichiton americanus Michelle Y. Wagner 1990-4-10 16 Humboldt Hope Creek Trail; 5 miles n of Orick. Damp ravine on w side of Hwy 101. 152 Comment
  CDA5135  Lythrum hyssopifolia T. C. Fuller 1962-8-6 9356 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  RSA94392  Madia anomala F. W. Peirson 1926-7-14 7067 Humboldt Redwood Camp, Lower Eel River Comment
  UC673205  Madia elegans Lincoln Constance and Reed C. Rollins 1942-5-11 2874 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  HSC70393  Madia exigua M. A. Baker 1980-6-7 1849 Humboldt Near Ammon Creek 732 Comment
  HSC74087  Madia gracilis Thomas W. Nelson, James Nelson 1976-5-30 2615 Humboldt McKeown Ranch, N of Dinsmore. Comment
  JEPS19928  Madia gracilis Lincoln Constance 1934-5-29 711 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  SEINET11810616  Madia gracilis subsp. pilosa J. P. Tracy 1950-1 19026 Humboldt Sproston's Place, 3 mi S of Burr Valley 1067 Comment
  HSC40379  Madia sativa Linda M. Barker 1976-6-14 1592 Humboldt 3 mi. W of Arcata Comment
  HSC38936  Maianthemum dilatatum Linda M. Barker 1976-5-13 1484 Humboldt 3 mi. W of Arcata Comment
  HSC15597  Maianthemum dilatatum W. D. Stevens 1964-5-12 15 Humboldt E end of 14th St., Arcata Comment
  SEINET12043868  Maianthemum dilatatum H. C. Cantelow 1936-1 s.n. Humboldt 5 mi N of Orick Comment
  HSC41942  Maianthemum racemosum subsp. amplexicaule Richard G. Runyon 1977-4-23 9 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC57938  Maianthemum racemosum subsp. amplexicaule Gilbert Muth 1979-8-1 11600 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC45493  Maianthemum racemosum subsp. amplexicaule Maralyn O'Meara 1972-6-8 105 Humboldt Along Bald Hills Rd., 18 mi. from junction with Hwy. 101 Comment
  CAS-BOT-BC347414  Malacothrix floccifera L. R. Abrams 1916-7-11 6063 Humboldt Mouth of Grizzly Creek between Bridgeville and Fortuna on Van Duzon [Duzen] River Comment
  HSC98021  Malacothrix floccifera Cara Witte 2007-7-8 427 Humboldt Board Camp Mountain. Pack trail 4N26. 1/2 mile from Tri Board Camp intersection. 1536 Comment
  HSC41005  Malacothrix floccifera J. O. Sawyer 1975-10-17 2716 Humboldt Along road to Brush Mountain Lookout 1189 Comment
  HSC59054  Marah oregana Thomas Wood 1979-4-20 121 Humboldt Along frontage Rd., parallel and E of Hwy. 101 at Patrick Creek Drive intersection, S of Patrick Creek. 6 Comment
  HSC97635  Marah oregana Cara Witte 2007-6-4 181 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  CDA42220  Marah oregana T. C. Fuller 1966-5-24 14711 Humboldt West side of Highway 101, 2 miles north of Trinidad. 0 Comment
  UC170039  Medicago lupulina Joseph P. Tracy 1912-7-4 3728 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC14970  Medicago polymorpha J. E. Lankila 1962-5-6 16 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  UC1103762  Melica bulbosa Joseph P. Tracy 1927-5-22 8073 Humboldt Kneeland Prairie; Northern Coast Range 762 Comment
  UCD87357  Melica geyeri Joseph. P. Tracy 1942-6-2 17099 Humboldt 2 miles north of Bridgeville. 609 Comment
  HSC10366  Melica subulata E. W. Styskel 1963-5-16 30 Humboldt 3.0 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UC1145129  Melica subulata Joseph P. Tracy 1942-6-2 17100 Humboldt 2 mi n Bridgeville 609 Comment
  HSC10365  Melica subulata D. C. Juve 1964-5-16 53 Humboldt Rousseau Ranch near Kneeland. Comment
  JEPS65552  Melilotus albus Lincoln Constance 1934-5-26 661 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end, sand and gravel bar) 45 Comment
  HSC71635  Melilotus albus J. P. Smith 1973-5-26 6875 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  OBI13658  Mentha aquatica Joseph P. Tracy 1947-11-9 17945 Humboldt Ferndale 9 Comment
  RSA246658  Mentha canadensis Robert F. Thorne 1965-9-19 35459 a Humboldt Freshwater Lagoon, south of Orick 3 Comment
  HSC12719  Mentha pulegium C. E. Fellows 1970-10-31 377 Humboldt Rio Dell, bank of Eel River, 1/2 mi. E of bridge on N side of town Comment
  UC1239689  Mentha spicata Joseph P. Tracy 1933-10-22 13104 Humboldt Trinity River Valley opposite mouth of Willow Creek Lack Pond; Northern Coast Ranges, Trinity River Valley oppos Willow Cre 152 Comment
  SEINET12277649  Mentha spicata J. P. Tracy 1950-1 19370 Humboldt Klamath River, near Slate Creek, Below Orleans 8 miles 122 Comment
  SEINET200815  Mentzelia dispersa Joseph P. Tracy 1908-7-30 2843 Humboldt Northwest slope of Buck Mountain 1219 Comment
  HSC32553  Mentzelia dispersa Thomas W. Nelson 1973-7-10 1033 Humboldt Humboldt-Trinity Co. line, Mt. Lassic (Signal Pk.) 1790 Comment
  UC527824  Menziesia ferruginea Ira L. Wiggins 1932-6-18 5866 Humboldt 2 mi e of Bayside (along Jacoby Creek); Jacoby Creek Comment
  JEPS80896  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1572 Humboldt U.S. Highway 101 Mile 128.75 Comment
  BLMAR115  Micranthes californica Jennifer Anthony-Wheeler 1995-3-15 115 Humboldt King range, growing on N.end of campground shaded under white oak 121 Comment
  CAS-BOT-BC428713  Micranthes californica Doris K. Kildale 1927-3-20 2925 Humboldt Philipsville, south fork of Eel River Comment
  UC1223190  Micropus californicus var. californicus Joseph P. Tracy 1947-5-10 17681 Humboldt near Briceland Comment
  UC1199336  Micropus californicus var. californicus Joseph P. Tracy 1927-6-5 8105 Humboldt Valley of South Yager Creek 762 Comment
  UC1223196  Microseris laciniata subsp. laciniata Joseph P. Tracy 1942-6-15 17169 Humboldt five mi n Garberville (along Eel River from South Fork Eel River to Scotia); Northern Coast Ranges, along Eel River from South Fork 60 Comment
  UC204745  Microseris laciniata subsp. laciniata Joseph P. Tracy 1918-7-3 4997 Humboldt Shelter Cove Northern Coast Ranges, Shelter Cove 15 Comment
  UC582440  Microseris nutans Joseph P. Tracy 1935-7-27 14307 Humboldt McKay Prairie Trinity Summit 1584 Comment
  POM247189  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain, near McKay Camp 1677 Comment
  SEINET10496812  Microsteris gracilis Lawrence P. Janeway 1983-4-16 Janeway 229 Humboldt Lord-ellis summit quad. T6n,r4e,sec.19. W facing slope near the old hwy 299 on W side of berry summit. Open hill grassland 823 Comment
  HSC79496  Mimulus aurantiacus var. aurantiacus Kenneth Clark 1979-7-1 452 Humboldt Dead Man's Gulch and throughout Shelter Cove 15 Comment
  HSC55989  Mimulus breweri Overton, Butler 1979-7-31 11404 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1196791  Mimulus douglasii Joseph P. Tracy 1922-5-29 6079 Humboldt head South Yager Creek; Northern Coast Ranges 762 Comment
  UC1196794  Mimulus douglasii Joseph P. Tracy 1948-5-31 17997 Humboldt near Harris 609 Comment
  UC147884  Mimulus grandis J. P. Tracy 1903-6-14 1923 Humboldt immediate vicinity Eureka 0 Comment
  UC582705  Mimulus grandis Joseph P. Tracy 1933-6-6 12501 Humboldt Trinidad 3 Comment
  HSC102176  Mimulus guttatus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1089 Humboldt Patterson Meadows 1555 Comment
  HSC59136  Mimulus guttatus Terry Roth 1979-5-20 61 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  UC582714  Mimulus inodorus Joseph P. Tracy 1935-7-23 14165 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  JEPS10788  Mimulus inodorus Joseph P. Tracy 1923-9-16 6551 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC1196773  Mimulus inodorus Joseph P. Tracy 1917-9-2 4845 Humboldt near top Grouse Mtn.; Northern Coast Ranges 1524 Comment
  SEINET200707  Mimulus kelloggii H. P. Chandler 1901-6-1 1480 Humboldt N Coast Ranges Klamath River 427 Comment
  UC162709  Mimulus microphyllus Joseph P. Tracy 1911-7-7 3367 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  RSA80459  Mimulus moschatus var. sessilifolius F. W. Peirson 1926-7-12 7038 Humboldt Orick. Comment
  UC582706  Mimulus nasutus Joseph P. Tracy 1927-3-27 7850 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC1103329  Mimulus primuloides Joseph P. Tracy 1935-7-26 14259 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  HSC73751  Minuartia douglasii M. A. Baker 1980-7-15 2945 Humboldt Near Whiting Ridge. 1341 Comment
  CAS-BOT-BC388623  Minuartia douglasii Doris K. Kildale 1926-5-9 1986 Humboldt Kneeland Prairie - summit 853 Comment
  HSC58019  Minuartia pusilla G. L. Clifton 1979-7-31 11821 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC48149  Mitella caulescens Volney Rattan 1882-6-1 s.n. Humboldt Coast Mts. North of San Francisco Bay - Near Boulder Cr. Comment
  UC11410  Mitella diversifolia J. Burtt Davy 1899-6-23 5753 Humboldt about half way to summit; North Coast Ranges, Trinity Summit Comment
  HSC44280  Mitella ovalis Barbara Kelly 1977-4-23 305 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  JEPS49691  Mitella ovalis Joseph P. Tracy 1923-4-8 6176 Humboldt Carlotta Northern Coast Ranges (along stream) 60 Comment
  CAS-BOT-BC433068  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt Klamath Mountains, Trinity Summit. Near Corral Prairie. 1524 Comment
  HSC72792  Moehringia macrophylla M. A. Baker 1980-6-16 1931 Humboldt Near Monks Camp 109 Comment
  HSC44557  Monardella odoratissima Brad Klipfel 1973-7-15 176 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58044  Monardella odoratissima subsp. pallida Gilbert Muth 1979-8-1 11900 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  CDA15839  Monardella sheltonii P. Haggard 1999-10-18 PDR 018001 Humboldt North Coast Ranges; Vicinity of Blue Lake off Hwy 299 +- 3 mi. E of Arcata. USFS Rd. #1 0 Comment
  SEINET4173659 Image available Monardella villosa Joseph P. Tracy 1939-8-5 16381 Humboldt Dinsmore's Comment
  JEPS13817  Moneses uniflora Joseph P. Tracy 1926-5-22 7515 Humboldt Northern Coast Ranges, Prairie Creek Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC1223248  Montia chamissoi Joseph P. Tracy 1950-6-25 18894 Humboldt 3 mi s of Burr Valley (on w side of Buck Mountain, near the Sproston place on the road to the Albee Pass); Buck Mountain 1158 Comment
  SEINET3025745  Montia linearis Joseph P. Tracy 1913-5-4 4067 Humboldt Kneeland Prairie 760 Comment
  UC183598  Montia linearis Joseph P. Tracy 1913-5-4 4067 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC445164  Montia parvifolia L. R. Abrams 1918-6-16 7202 Humboldt Willow Creek Comment
  HSC98550  Montia parvifolia Cara Witte 2008-6-27 765 Humboldt Along National Forest 1 on Kinsey Ridge. 1.5 mi. NE of intersection with 4N09. 1317 Comment
  JEPS17216  Montia parvifolia Lincoln Constance 1934-5-31 744 Humboldt Bull Creek Flat, along Bull Creek (from w boundary of Park to Grasshopper Peak (Squaw Creek) road, n side of creek, South Fork Eel River); Bull Creek Region, South Fork Eel River, Bull Creek Comment
  CAS-BOT-BC445149  Montia parvifolia Volney Rattan No date on label s.n. Humboldt Unspecified Comment
  HSC47501  Morella californica Sheila Logan 1978-4-10 27 Humboldt Foot of Hiller Ave. at Ocean Rd., Pacific Ocean and Mad River 46 Comment
  CAS-BOT-BC260573  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  HSC77866  Myosurus minimus Rudy Becking 1982-11-13 Humboldt N Spit of Samoa Peninsula, near USCG Station Comment
  JEPS30071  Myrica californica Joseph P. Tracy 1930-5-18 8698 Humboldt Rohnerville Golf Course Northern Coast Ranges, Rohnerville Golf Course 152 Comment
  RSA46887  Myrica californica Doris K. Kildale 1926-6-18 2393 Humboldt Gold Bluffs. Comment
  UCD87899  Nassella lepida A. H. Murphy 1951-5-18 43 Humboldt along road, 2.5 mi. northwest of Petrolia. Comment
  UCD87901  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
  UC162572  Navarretia atractyloides Joseph P. Tracy 1911-7-4 3302 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, Trinity River, Willow Creek 182 Comment
  UC908387  Navarretia divaricata Joseph P. Tracy 1930-7-23 9119 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  UC146173  Navarretia intertexta Joseph P. Tracy 1908-6 2799 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC35870  Navarretia mellita Thomas W. Nelson 1975-8-5 Humboldt Parking area of 7th Day Advent Church in Eureka Comment
  JEPS70445  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point Northern Caost Ranges 152 Comment
  HSC27618  Navarretia squarrosa Thomas W. Nelson 1973-7-24 1100 Humboldt Flood plain of the Mad River at the Carson R.R. bridge Comment
  UC198643  Navarretia tagetina Joseph P. Tracy 1916-6-19 4709 Humboldt Forks of Dobbyn Creek Northern Coast Ranges 182 Comment
  SEINET200628  Navarretia viscidula Joseph P. Tracy 1918-7-5 5036 Humboldt White Thorn Valley 305 Comment
  HSC73815  Nemophila menziesii Gail Newton 1980-6-7 123 Humboldt Near Brush Mtn. 1128 Comment
  UC1239755  Nemophila menziesii Joseph P. Tracy 1923-6-3 6251 Humboldt near Dsn McBride Place (Kneeland Prairie); , near Dan McBride Place 762 Comment
  UC163963  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt near Hydesville; near Hydesville 60 Comment
  UC562584  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-1 9858 Humboldt Redway 182 Comment
  HSC13582  Nemophila menziesii var. atomaria Doris K. Kildale 1926-2-27 1517 Humboldt Big Rock at Little River Comment
  UC1245399  Nemophila parviflora Joseph T. Gregory 1937-5-17 1201 Humboldt moist shaded ground e Trinity River (Willow Creek); e of Trinity River, Willow Creek 152 Comment
  JEPS12381  Nicotiana quadrivalvis Joseph P. Tracy 1930-10-19 9223 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  UC198618  Nicotiana quadrivalvis Joseph P. Tracy 1916-9-5 4764 Humboldt 4 mi above South Fork of Eel River mouth; Northern Coast Ranges 60 Comment
  CAS-BOT-BC60546  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 853 Comment
  HSC6967  Noccaea fendleri subsp. californica Paul Shields May 1955 Humboldt Kneeland Comment
  UC774627  Nuphar lutea subsp. polysepala Carl B. Wolf 1937-9-9 9309 Humboldt 1 mi s of Capetown (on road to Cape Mendocino) 91 Comment
  HSC59715  Nuttallanthus texanus Clark L. Miller 1979-5-9 1110 Humboldt Samoa Dunes off Samoa Blvd. Comment
  UC217655  Nuttallanthus texanus J. P. Tracy 1904-7-4 2117 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC142251  Oemleria cerasiformis C. Hart Merriam 1918-8-11 s.n. Humboldt Blue Lake Comment
  UC666834  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15249 Humboldt Willow Creek; Trinity River Valley 152 Comment
  RSA46471  Oenanthe sarmentosa Doris K. Kildale 1926-7-16 2380 Humboldt Big Lagoon Comment
  HSC96500  Oenanthe sarmentosa Gordon Leppig 1998-8-23 1075 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS35818  Oenanthe sarmentosa Rimo Bacigalupi and L. R. Heckard 1964-7-28 8964 Humboldt 1/8 mi. above Shelter Cove (near water tanks for supplying Shelter Cove) 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
  CHSC70160  Oenothera wolfii David K. Imper 1991-9-4 Humboldt Grown in Eureka garden. Parents collected at junc. Hwy 299 and Big Hill Rd, Hoopa Square 91 Comment
  HSC99007  Orobanche fasciculata var. franciscana Cara Witte 2008-7-14 894 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1380 Comment
  SEINET12270144  Orthocarpus imbricatus J. P. Tracy 1951-1 19562 Humboldt halfway between Snow Camp & Twin Lakes Comment
  UC582573  Orthocarpus imbricatus Joseph P. Tracy 1937-7-29 15571 Humboldt near McKay Camp South Fork Mountian (South Fork Mountain); South Fork Mountain 1676 Comment
  HSC56139  Osmorhiza occidentalis G. L. Clifton 1979-8-1 11960 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC12761  Oxalis articulata subsp. rubra M. J. Athey 1970-11-8 12 Humboldt Along Arcata blvd., in Arcata. Comment
  UC502973  Oxalis pes-caprae Joseph P. Tracy 1927-3-23 7845 Humboldt Eureka Northern Coast Ranges Comment
  UC1145220  Panicum acuminatum var. acuminatum Joseph P. Tracy 1939-7-9 16323 Humboldt Bald Mountain at Lake Prairie; Bald Mountain at Lake Prairie 1066 Comment
  UCD88691  Panicum acuminatum var. fasciculatum Joseph P. Tracy 1918-7-5 5014 Humboldt White Thorn Valley. 304 Comment
  UC1103779  Panicum capillare Joseph P. Tracy 1920-8-15 5369 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  HSC13258  Parapholis incurva D. E. Anderson 1965-6-10 3794 Humboldt Harbor area of Eureka. Comment
  RSA246893  Parapholis incurva R. F. Thorne, P. Everett 1965-8-8 35274 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  RSA624795  Parapholis incurva Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-25 788 Humboldt Big Lagoon State Park. 2 Comment
  SEINET200584 Image available Parapholis incurva Joeseph P. Tracy 1937-6-5 15328 Humboldt Mouth of Little River 3 Comment
  HSC30825  Parapholis strigosa J. P. Smith, Dennis Anderson 1971-6-14 - 1051 Humboldt At foot of G St., Arcata. Comment
  JEPS3365  Parentucellia viscosa Joseph P. Tracy 1937-7-17 15433 Humboldt Eureka 30 Comment
  HSC90750  Parentucellia viscosa Jean Hanson 1980-6-22 95 Humboldt Indian (Gunther) Island, Humboldt Bay, City of Eureka, W end of island Comment
  UC492219  Parnassia californica Joseph P. Tracy Jul 16 1930-Jul 19 1930 8919 Humboldt Northern Coast Ranges, South Fork Mountain at Mckay Camp South Fork Mountain; Northern Coast Ranges, , Mckay Camp 1676 Comment
  HSC41014  Paxistima myrsinites J. P. Smith, J. O. Sawyer 1976-5-2 8636 Humboldt 8 mi. W of Loop Rd. on Hoopa Reservation along Redwood Creek-Hoopa Rd. Comment
  UC249593  Paxistima myrsinites Joseph P. Tracy 1922-4-30 6042 Humboldt ridge n. of Willow Creek between Willow Creek and Campbell Creek (Brannan Mt.); Northern Coast Ranges, Brannan Mt. 914 Comment
  UC179970  Pedicularis groenlandica Joseph P. Tracy 1914-7-4 4533 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges 1066 Comment
  UC1314350  Pellaea andromedifolia R. M. and A. F. Tryon 1958-6-5 5556 Humboldt 3.8 mi w Redway (on rd to Briceland) Comment
  UC1299764  Pellaea brachyptera Freed W. Hoffman 1949-7-15 3007 Humboldt e slope Mule Slide (Mt Lassic area a little s of Blue Ridge); Mt Lassic area Comment
  HSC56254  Penstemon anguineus Walter Overton 1979-8-1 12387 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  HSC63803  Penstemon anguineus M. A. Baker 1979-6-7 798 Humboldt Along road to Telescope Peak next to stream between Telescope Peak and Snow Mtn. 915 Comment
  RSA21441  Penstemon anguineus Carl B. Wolf 1937-8-12 9205 Humboldt North Coast Range, South Fork Mt., Trinity Co line. 1585 Comment
  UCR131735  Penstemon azureus C. B. Wolf 1937-8-13 09220 Humboldt North Coast Range, 8 miles east of Hoopa Valley on new road toward Trinity Summit 1475 Comment
  HSC74482  Penstemon deustus Gail Newton 1980-7-24 1767 Humboldt Near Somes Mtn. 1615 Comment
  RSA60491  Penstemon deustus subsp. deustus John H. Thomas 1949-6-12 902 Humboldt Near Klamath River, 1/2 mile N of town of Orleans Comment
  NY601689  Penstemon heterophyllus var. heterophyllus J. P. Tracy 1933-6-25 12616 Humboldt Camp Grant, along Eel River, 2 to 5 miles east of the South Fork 45.7 Comment
  HSC73566  Penstemon laetus subsp. sagittatus Gail Newton 1980-7-14 1503 Humboldt Near Last Chance Ridge 1219 Comment
  HSC73634  Penstemon newberryi M. A. Baker 1980-7-23 3180 Humboldt Near Orleans Mtn. 1859 Comment
  HSC74601  Penstemon newberryi Gail Newton 1980-7-22 1682 Humboldt Near Devils Backbone 231 Comment
  HSC55841  Penstemon newberryi subsp. berryi G. L. Clifton, Terry Griswold 1979-7-25 10792 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  SEINET3360831 Image available Penstemon newberryi subsp. berryi Joseph P. Tracy 16-19 July 1930 8953 Humboldt South Fork Mountain; along summit near Blake lookout. 1707 Comment
  SEINET5329314 Image available Penstemon rattanii J. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762 Comment
  HSC61769  Pentagramma triangularis Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath R. at Pecwan 239 Comment
  CAS-BOT-BC71620  Pentagramma triangularis subsp. triangularis Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  UC162775  Pentagramma triangularis subsp. triangularis Joseph P. Tracy 1911-7-5 3315 Humboldt Willow Creek near its mouth Willow Creek; Northern Coast Ranges, tributary of Trinity River 243 Comment
  UC906650  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1942-9-20 17324 Humboldt 2 mi s Fields Landing 3 Comment
  UC642256  Perideridia howellii Joseph P. Tracy 1937-8-7 15615 Humboldt 1 mi n Murphy Meadow; Bald Mt. 914 Comment
  RSA41945  Perideridia kelloggii H. C. Cantelow 1936-8-28 1723 Humboldt 4 1/2 miles SW of Dinsmore, Fortuna, bluff road Comment
  CAS-BOT-BC413504  Persicaria amphibia Joseph P. Tracy 1934-7-20 13467 Humboldt Big Lagoon 3 Comment
  UCD99507  Persicaria lapathifolia Malcolm A. Nobs; S. Galen Smith 1949-8-9 1232 Humboldt Southern side of the town of Blue Lake. Comment
  UC1239507  Petasites frigidus var. palmatus Joseph P. Tracy 1937-7-2 15405 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  POM160824  Petasites palmatus Joseph P. Tracy 1926-2-28 7377 Humboldt Trinity River Valley, near the S Fork. 183 Comment
  SEINET11809912  Petasites palmatus J. P. Tracy 1947-1 17670 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  UC672428  Phacelia bolanderi Herbert L. Mason 1928-7-20 4910 Humboldt near Weitchpec; Klamath River Canyon Comment
  HSC70344  Phacelia heterophylla Gail Newton 1980-6-7 122 Humboldt Near Brush Mtn. 1128 Comment
  HSC60087  Phacelia heterophylla M. A. Baker 1978-5-6 478 Humboldt 2 km. S of Weitchpec Comment
  JEPS1200  Phacelia malvifolia Joseph P. Tracy 1934-6-10 13212 Humboldt DRY LAGOON (Along coast in front South End of Stone Lagoon.) Comment
  UC906636  Phacelia mutabilis Joseph P. Tracy 1947-7-9 17832 Humboldt lower slopes Horse Mountain 1219 Comment
  BLMAR532  Phacelia nemoralis subsp. nemoralis Jennifer Wheeler 2009-6-23 532 Humboldt King range, On Paradise Ridge road Comment
  UC1051817  Phacelia nemoralis subsp. oregonensis L. R. Heckard 1952-5-13 272 Humboldt near railroad station; Alton Comment
  HSC57416  Phacelia procera G. L. Clifton, Griswold 1979-7-26 10178 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  CAS-BOT-BC76568  Philadelphus lewisii Doris K. Kildale 1926-6-27 2203 Humboldt On road to Larabee Valley from McLellan Mt. 792 Comment
  SDSU904  Philadelphus lewisii Harvey 1938-8-14 2335 Humboldt US 299 Comment
  UC183571  Philadelphus lewisii Joseph P. Tracy 1912-7-4 3722 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC666825  Philadelphus lewisii Joseph P. Tracy 1937-6-20 15355 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  UC420417  Philadelphus lewisii P. E. Goddard 1907-6-10 #b. 119 Humboldt Van Duzen Comment
  POM126105  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt At Eureka 0 Comment
  HSC99494  Phleum pratense K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 154 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
  UC1178964  Phlox adsurgens Joseph P. Tracy 1932-7-13 10488 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC52674  Phlox adsurgens P. E. Goddard 1901-7-8 31 Humboldt Hupa Comment
  HSC17160  Phlox diffusa D. E. Anderson 1965-6-1 3760 Humboldt Horse Mtn.; N-facing slope near ski lodge 1433 Comment
  UC1191121  Phlox douglasii subsp. rigida Joseph P. Tracy 1932-7-18 10699 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  HSC92126  Phyllospadix scouleri G. Smith 1967-7-21 1979 Humboldt Patrick's Point State Park 0 Comment
  UC672881  Phyllospadix scouleri Joseph P. Tracy 1938-9-9 16147 Humboldt Trinidad Comment
  CAS-BOT-BC451997  Phyllospadix scouleri Robert F. Thorne 1957-9-3 19016 Humboldt At Abalone Point, Patrick's Point State Park Comment
  POM210091  Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Spruce Cove, Trinidad. Comment
  HSC83091  Phyllospadix torreyi Geo. W. Burtchett 1965-7-29 Humboldt Palmer's Point 0 Comment
  SEINET11763301  Phyllospadix torreyi H. E. Parks 1933-1 s.n. Humboldt Spruce Cove, Trinidad Comment
  CAS-BOT-BC73445  Picea sitchensis Carl B. Wolf 1930-10-28 1037 Humboldt 5 miles south of Ferndale on road to Petrolia. 152 Comment
  HSC1354  Picea sitchensis J. W. Johnson 1962-4-29 1295 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC45890  Picea sitchensis J. P. Smith 1971-10-6 4969 Humboldt End of Murray Rd. in McKinleyville, Bulk Collection 155 Comment
  SJSU2223  Picea sitchensis H. L. Buckalew 1959-7-10 Humboldt Prairie Creek Redwoods State Park, northweastern Humbollt County Comment
  UC1134170  Picea sitchensis H. S. Yates 1936-6-16 5659 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  SEINET5334460  Picea sitchensis W. D. Billings 1940-6-28 1355 Humboldt 1/4 mile north of Trinidad Head Comment
  HSC1482  Pinus contorta S. J. Hawks 1965-3-12 5 Humboldt 0.25 mi. W of Fairhaven Comment
  HSC95835  Pinus contorta var. contorta Will Ferrand 2002-4-27 36 Humboldt 300 ft W of intersection of Samoa Blvd. and Lupine Dr. 9 Comment
  HSC70538  Pinus lambertiana Gail Newton 1980-7-22 1661 Humboldt Near Devils Backbone 1646 Comment
  RSA46498  Pinus monticola Doris K. Kildale 1927-3-27 2998 Humboldt 1 mile north of Trinidad. Comment
  CAS-BOT-BC136468  Piperia candida Harley P. Chandler 1901-6-1 1385 Humboldt Field redacted by CAS, contact the data manager for more information 304 Comment
  CAS-BOT-BC136533  Piperia candida Volney Rattan 1878-1-1 s.n. Humboldt Field redacted by CAS, contact the data manager for more information Comment
  CHSC22734  Piperia elegans Robert A. Schlising 1963-6-3 2580 Humboldt 3.5 miles north of Garberville. Comment
  UC1196411  Piperia unalascensis Joseph P. Tracy 1913-6-26 4346 Humboldt opposite Buck Mountain ( Dinesmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC57196  Plagiobothrys bracteatus Griswold, Butler 1979-7-11 7046 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  RSA226608  Plagiobothrys nothofulvus Norman Dennis 1965-6-11 114 Humboldt About 0.25 mile S and 1 mile E of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles SE of Kneeland. 793 Comment
  UC1562526  Plagiobothrys nothofulvus Barbara Ertter with Thomas J. Delendick 1987-5-16 6929 Humboldt ca 15 air mi e Arcata (just w of Berry Summit on Hwy 299, on n side of road); Vista Point 914 Comment
  RSA80192  Plagiobothrys reticulatus Alice Eastwood, J. T. Howell 1937-6-23 4811 Humboldt Little Van Duzen River. 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
  UC249519  Plagiobothrys tenellus Joseph P. Tracy 1922-4-30 5990 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC175681  Plagiobothrys tenellus Joseph P. Tracy 1908-6-9 2646 Humboldt gravelly hills Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC526813  Plagiobothrys tenellus Joseph P. Tracy 1932-5-17 10070 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  HSC26370  Plantago lanceolata T. O. Osborne 1970-9-16 64 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC12018  Plantago major Wilbur Peterson 1970-10-28 93 Humboldt 1 mi. W of Blue Lake near R/R crossing Comment
  HSC71216  Plantago maritima Thomas W. Nelson, Doris K. Niles 1979-5-19 4692 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC89977  Plantago maritima Leonel Arguello 1989-7-14 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. Comment
  JEPS7158  Plantago maritima var. californica Joseph P. Tracy 1927-6-26 8219 Humboldt Stone Lagoon 6 Comment
  CHSC32936  Plantago maritima var. juncoides James Payne Smith Jr. 1970-6-7 3813 Humboldt 0.6 miles north of Luffenholtz Beach along Calif. 1 near Trinidad. Comment
  HSC16832  Plantago subnuda Norman H. Moe 1962-5-17 Humboldt Lanphere's Place, next to Mad River Slough Comment
  HSC55140  Platanthera sparsiflora G. L. Clifton, Griswold 1979-8-1 12021 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1196414  Platanthera sparsiflora Joseph P. Tracy 1948-9-5 18197 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  HSC47999  Platanthera sparsiflora Brad Klipfel 1975-6-17 673 Humboldt Comment
  UC1540409  Platystemon californicus Gary L. Hannan 1976-5-25 166 Humboldt New Bavy Base Road, 6.6 km S of bridge to Eureka Comment
  JEPS5131  Plectritis brachystemon Lincoln Constance 1934-6-3 802 Humboldt 1 mi n of Dyerville (Road from High Rock (on Redwood Highway) to Horse Prairie, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  UC169077  Plectritis brachystemon Harley P. Chandler May, 1901 1149 B Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  UC175689  Plectritis brachystemon Joseph P. Tracy 1912-6-16 3703 Humboldt near Hookton (Region about Humboldt Bay, Northern Coast Region); Northern Coast Region 0 Comment
  UC602508  Plectritis brachystemon Joseph P. Tracy 1933-5-20 12250 Humboldt Northern Coast Ranges, Mattole Valley Mattole Valley; Northern Coast Ranges, Mattole Valley 60 Comment
  HSC63230  Plectritis congesta subsp. brachystemon M. A. Baker 1979-5-6 473 Humboldt Weitchpec. Comment
  HSC21695  Plectritis congesta subsp. brachystemon Paul Shields May 1955 Humboldt 8 mi. S of Arcata. Comment
  RSA178587  Plectritis congesta var. congesta Joseph P. Tracy 1950-5-6 18639 Humboldt At my cabin. Trinity River Valley, at Willow Creek. Comment
  HSC10613  Pleuropogon refractus R. D. Modaferri 1965-5-13 98 Humboldt 2.2 mi N of Trinidad on Trinity St. 274 Comment
  HSC75692  Pleuropogon refractus Bill Copeland 1980-6-26 303 Humboldt Near Murphy Meadow 914 Comment
  UCD90101  Pleuropogon refractus A. A. Beetle; G. L. Stebbins Jr., J. P. Tracy 1942-6-2 3482 Humboldt branch of South Fork of Yager Creek. North of Yager. Comment
  HSC89479  Poa annua P. A. Daly 1986-3-12 76 Humboldt Trinidad Head, along trail 61 Comment
  UC180496  Poa annua Joseph P. Tracy 1914-5-14 4460 Humboldt Fort Seward; North Coast Ranges 121 Comment
  CAS-BOT-BC255119  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  HSC10685  Poa confinis Norman H. Moe 1962-5-17 Humboldt Lanphere's Place. Comment
  UC525624  Poa confinis H. E. Parks and Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka; North Coast Ranges 9 Comment
  HSC74676  Poa cusickii subsp. epilis Gail Newton 1981-5-16 2176 Humboldt Near Bug Creek. 1228 Comment
  HSC10721  Poa kelloggii D. E. Anderson 1965-5-6 3622 Humboldt 4.8 mi. W of bridge over N Fork of Mad River, along Hwy. 299 Comment
  UC1103180  Poa kelloggii Joseph P. Tracy 1918-5-12 4931 Humboldt along old rd. at Eureka; Northern Coast Ranges, Eureka 0 Comment
  UCD90523  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay. 30 Comment
  SEINET10660267  Poa kelloggii Harley P. Chandler Chandler 1183 Humboldt North Coast Ranges, California. 30 Comment
  SEINET10855127  Poa kelloggii Joseph P. Tracy 1911-6-4 Tracy 3219 Humboldt Along Little River Humboldt County 5 miles from the coast. Comment
  HSC10699  Poa macrantha R. C. Drewien 1963-5-8 11 Humboldt S of the Mad River, Lanpheres' property. Comment
  SEINET183546 Image available Poa macrantha Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-9 15073 Humboldt Clam Beach 15 miles north of Eureka Comment
  UCD91545  Poa macrantha Freed W. Hoffman 1946-5-21 1719 Humboldt near Eel River. Comment
  RSA55251  Poa macrantha W. A. Silveus 1938-7-6 2916 Humboldt Stinson beach Comment
  UCD91801  Poa palustris A. Murphy 1950-5-1 s.n. Humboldt Ferndale area. Comment
  HSC70247  Poa pratensis M. A. Baker 1980-6-8 1916 Humboldt Near Buck Flat. 1554 Comment
  HSC73058  Poa pratensis M. A. Baker 1980-7-22 3110 Humboldt Near Grogan Hole. 1676 Comment
  HSC75471  Poa pratensis J. O. Sawyer 1980-7-18 3618 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC184172  Poa pratensis subsp. pratensis Joseph P. Tracy 1905-6-4 2186 Humboldt Eureka; Northern Coast Region 0 Comment
  UC1152045  Poa secunda subsp. secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 mi w Snow Camp (at Beck's Place, Hydesville) 1219 Comment
  CAS-BOT-BC244206  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad. Bluffs facing ocean Comment
  CAS-BOT-BC244207  Poa unilateralis Harley P. Chandler 1901-5-1 1140 Humboldt Humboldt Bay 3 Comment
  UC1103178  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad, bluffs facing ocean Trinidad; Northern Coast Region 60 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
  CAS-BOT-BC232889  Polemonium carneum Doris K. Kildale 1926-3-20 1535 Humboldt Big Lagoon Comment
  SD53201  Polygala californica Darley F. Howe 1962-5-21 3292 Humboldt 16 miles north of Garberville on #101 60 Comment
  UC902120  Polygala cornuta var. cornuta Joseph P. Tracy 1947-7-5 17788 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  RSA506995  Polygonum amphibium var. emersum H. E. Parks 1934-08 5165 Humboldt Hulmboldt County: Big Lagoon, Host of rust Comment
  UC1198085  Polygonum amphibium var. stipulaceum Joseph P. Tracy 1934-7-30 13495 Humboldt along coast in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  HSC12591  Polygonum aviculare C. Kline 1970-11-9 64 Humboldt .5 mi. N of Bayside, Bayside Rd. Comment
  HSC100601  Polygonum bistorta Carl C. Marshall Jun 1886 269 Humboldt Trinity Summit. Comment
  UC672971  Polygonum bistortoides Joseph P. Tracy 1932-7-10 10384 Humboldt Corral Prairie Trinity Summit 1584 Comment
  JEPS50516  Polygonum convolvulus Milo S. Baker 1923-8-5 176 Humboldt Stone Lagoon; in potato field Comment
  JEPS50522  Polygonum convolvulus Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UCD100221  Polygonum douglasii D. C. Hagar 1957-7-25 81 Humboldt Mill Creek cutover, 7.5 miles east-northeast of Hoopa. 1402 Comment
  UC1713699  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1919-9-18 5237 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  JEPS79955  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1940-8-25 16707 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1192316  Polygonum hydropiper Malcolm A. Nobs and S. Galen Smith 1949-8-11 1336 Humboldt Stone Lagoon; marsh on e shore Comment
  UC672949  Polygonum lapathifolium Joseph P. Tracy 1930-10-12 9204 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  HSC75441  Polygonum minimum J. O. Sawyer 1980-7-18 3608 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC672941  Polygonum persicaria Joseph P. Tracy 1927-10-8 8387 Humboldt Prairie Creek Boyes Ranch 91 Comment
  UC672979  Polygonum phytolaccifolium Joseph P. Tracy 1933-7-26 12921 Humboldt Grouse Mountain; around old cabin 1524 Comment
  HSC55283  Polygonum polygaloides subsp. kelloggii Overton, Butler 1979-8-2 12711 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CDA37208  Polygonum polystachyum B. Villegas, Bruce Bryan 2009-10-6 s.n. Humboldt Near Trinidad; Patricks Point Drive at Seawood Drive, east of Hwy 101. Comment
  SEINET200792 Image available Polypodium californicum Joseph P. Tracy 1932-3-20 9784 Humboldt Trinidad 61 Comment
  HSC1100  Polypodium californicum Francis Winter 1960-2-28 Humboldt Samoa peninsula, 6 mi. W of Arcata Comment
  CAS-BOT-BC76846  Polypodium glycyrrhiza Doris K. Kildale 1926-2-22 1468 Humboldt Dobbyns Creek Comment
  UC57305  Polypodium glycyrrhiza J. P. Tracy 1901-1-27 986 Humboldt sand hills of Ocean Beach at Samoa (opposite Eureka) Comment
  CAS-BOT-BC76842  Polypodium glycyrrhiza Ira L. Wiggins 1957-6-20 14134 Humboldt Forest, east side of highway, Trinidad. Comment
  HSC39970  Polypodium glycyrrhiza Kurt Hippen, Tom Duebendorfer Humboldt Off Dowes Prairie Rd. 0.25 mi. up Strawberry Cr. Comment
  UC955491  Polypodium glycyrrhiza Mrs. Carlotta C. Hall 1924-8-9 234 Humboldt Wilder Ranch near Carlotta 91 Comment
  HSC10823  Polypogon australis D. E. Anderson 1965-5-8 3656 Humboldt W end of bridge over Trinity River, 0.5 mile S of Willow Creek. Comment
  CAS-BOT-BC233074  Polypogon interruptus Joseph P. Tracy 1927-7-16 8260 Humboldt Eureka 60 Comment
  UC526769  Polypogon maritimus Joseph P. Tracy 1930-10-19 9236 Humboldt Eel River on gravel bars Alton to Fortuna; Eel River 15 Comment
  SEINET10927106  Polypogon monspeliensis Harley P. Chandler Chandler 1431 Humboldt 30 Comment
  UC1440063  Polystichum californicum Danin & H. G. Baker 1960-8-14 614 a Humboldt ca. 1 mi toward Garberville from Myers Flat (Nelson Grove); Humboldt Redwoods State Park Comment
  HSC73804  Polystichum imbricans M. Baker 1980-6-16 1928 Humboldt Near Monk's Camp 1097 Comment
  HSC55170  Polystichum munitum Gilbert Muth 1979-8-1 12166 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UCD136543  Polystichum munitum Linda M. Barker 1976-4-30 1414 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  CAS-BOT-BC76661  Polystichum munitum Joseph P. Tracy 1933-7-21 12813 Humboldt Riverside Auto Park on Van Duzer River, 5 miles E of Carlotta. 60 Comment
  HSC93265  Polystichum munitum Gordon Leppig 1998-3-11 716 Humboldt Redwood Park, near Jolly Giant Cr. 91 Comment
  SEINET4555667 Image available Polystichum munitum Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15049 Humboldt 20 miles north of Eureka. Comment
  HSC36130  Potamogeton crispus Rod Blacker 1974-5-20 742005 .2 Humboldt Jolly Giant Creek, W side of Alliance Rd. Culvert Comment
  UC1103479  Potamogeton pectinatus Joseph P. Tracy 1939-8-20 16432 Humboldt Big Lagoon 3 Comment
  HSC92714  Potamogeton pusillus R. York 1977-10-22 54 Humboldt Behind Fieldbrook School Comment
  HSC102139  Potentilla glandulosa subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1043 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC57112  Prosartes hookeri Overton, Butler 1979-7-25 9855 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC99393  Prosartes hookeri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 42 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC79489  Prosartes hookeri Kenneth Clark 1980-3-24 539 Humboldt Upper terrace of Dead Man's Gulch 76 Comment
  HSC15475  Prosartes smithii Francis Winter 1960-4-23 Humboldt Simpson Creek, Korbel-Maple Creek rd. 244 Comment
  HSC22524  Prunella vulgaris David K. Smith 1968-11-20 83 Humboldt About 4 miles SE of Arcata, along Jacoby Creek. Comment
  HSC14303  Prunella vulgaris subsp. lanceolata William J. Ferlatte, B. D. Rodgers 1966-6-7 2083 Humboldt 1 mi. E of Forest Glen 732 Comment
  JEPS62490  Prunella vulgaris var. lanceolata Joseph P. Tracy 1934-7-14 13403 Humboldt along Mad River near Blue Lake; along Mad River near Blue Lake 15 Comment
  CAS-BOT-BC159980  Prunus emarginata Joseph P. Tracy 1934-9-5 13656 Humboldt Horse Mountain 1402 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
  HSC55996  Prunus emarginata Overton, Butler 1979-7-31 11433 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC74178  Prunus emarginata M. A. Baker 1980-7-23 3185 Humboldt Near Orleans Mtn. 1859 Comment
  UCSB30606  Pseudognaphalium californicum Edwards, David 1974-8-14 Humboldt S. side of dirt Rd., ca. 1/2-1/3 mi. in on dirt road from jct. with Fickle Hill Rd., ca. 1/4 mi. from jct. of Fickle Hill Rd. and Park Ave. Comment
  HSC56460  Pseudognaphalium stramineum Griswold, Butler 1979-7-12 7244 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC1223116  Pseudognaphalium stramineum Joseph P. Tracy 1950-7-15 19044 Humboldt e side Trinity River 1 mi n of mouth of Willow Creek; Trinity River Comment
  CAS-BOT-BC80110  Pseudotsuga menziesii Doris K. Kildale 1926-11-14 2859 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC80113  Pseudotsuga menziesii Joseph P. Tracy 1949-4-3 18278 Humboldt Trinidad 60 Comment
  NY63912  Pseudotsuga menziesii var. menziesii J. P. Tracy 1932-3-19 9789 Humboldt Blue Slide, on Van Duzen River Comment
  CAS-BOT-BC361833  Psilocarphus oregonus Joseph P. Tracy 1938-7-5 16008 Humboldt Carlotta. By old Strong's District School House, 5 miles east of town 45 Comment
  UC1223051  Psilocarphus oregonus Joseph P. Tracy 1947-6-25 17720 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  CAS-BOT-BC361931  Psilocarphus tenellus Doris K. Kildale 1926-6-27 2205 Humboldt Laribee Valley 701 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
  CAS-BOT-BC361930  Psilocarphus tenellus M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale on road to Garberville Comment
  HSC100525  Psoralea physodes Carl C. Marshall Jun 1885 11 Humboldt Pilot Creek. Comment
  HSC55265  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-8-2 12617 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  UC642278  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-6-3 8600 Humboldt Trinity Rivery Valley, at Willow Creek 152 Comment
  CAS-BOT-BC460600  Pyrola aphylla Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC460601  Pyrola aphylla Mrs. William Hammond no date on label s.n. Humboldt Fort Seward Comment
  CAS-BOT-BC460603  Pyrola aphylla Doris K. Kildale 1926-6-17 2166 Humboldt Kneeland Prairie 762 Comment
  SJSU909  Pyrola asarifolia J. W. Tilden 1946-6-21 1013 Humboldt Bluff Cr c. 1.5 mi above Klamath R Comment
  HSC75947  Pyrola crypta Overton, Butler 1979-7-24 9719 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  JEPS48537  Pyrola crypta Hilda W. Grinnell 1932-7-19 29 Humboldt McKay Camp, So. Fork Mt. Comment
  JEPS66565  Pyrola crypta Joseph P. Tracy Jul 16-19 1930 9033 Humboldt South Fork Mountain; in fir forest near McKay Camp 1676 Comment
  RSA0080627  Pyrola dentata S. S. Tillett 1956-7-6 617 Humboldt 11 mi. from Orlenas, on Bar Shanty Road. 1159 Comment
  BLMAR528  Pyrola picta Jennifer Wheeler 2009-6-23 528 Humboldt King range, Paradise Ridge road Comment
  UC1197569  Pyrola picta Joseph P. Tracy 1913-7-20 4369 Humboldt willow Creek Road neat Tree Creeks. 1066 Comment
  UC154190  Pyrola picta Mrs. M. H. Manning 1901-7-27 314 Humboldt near Hoopa (Bald Hill); Bald Hill Comment
  UC709464  Quercus X morehus Joseph P. Tracy 1941-6-15 16915 Humboldt Panther Gap; on Bull Creek-Mattole Rd 762 Comment
  HSC54593  Quercus chrysolepis Overton, Butler 1979-7-24 9661 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC5535  Quercus chrysolepis unknown 1867-6-17 Humboldt Elk Ridge Comment
  UCD45385  Quercus chrysolepis Joseph P. Tracy; H. E. Parks 1931-5-17 9413 Humboldt Trinity River Valley opposite Willow Creek. 152 Comment
  CAS-BOT-BC94317  Quercus garryana H. E. McMinn 1922-8-5 352 Humboldt Along Van Duzen River Comment
  UC275589  Quercus garryana Joseph P. Tracy 1924-8-31 6856 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 91 Comment
  UCSB1171  Quercus garryana C. Muller 1954-6-21 9641 Humboldt 2 MI ESE OF MAD RIVER ON RD TO FOREST GLEN OLSEN CREEK Comment
  HSC55093  Quercus garryana var. breweri G. L. Clifton, Griswold 1979-7-31 11796 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC98850  Quercus garryana var. garryana Cara Witte 2008-9-13 1037 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. Cow Creek Ridge. 1283 Comment
  UC275512  Quercus kelloggii Joseph P. Tracy 1923-9-10 6543 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1196512  Quercus sadleriana Joseph P. Tracy 1935-7-23 14155 Humboldt lower end of Brett Hole Trinity Summit, Brett Hole 1584 Comment
  UCD47241  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi N.E. of Hooba along trail towards Trinity Summit from end of forest Rd. 1463 Comment
  CAS-BOT-BC104539  Quercus vacciniifolia D. E. Breedlove 1961-7-4 647 Humboldt 7 miles W of Willow Creek on US 299 521 Comment
  HSC55598  Quercus vacciniifolia Overton, Butler 1979-7-23 9411 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  CAS-BOT-BC539321  Quercus wislizeni Lois Weeth; Kerry Heise; John M. Tucker 2003-10-21 s.n. Humboldt 49.5 mi from Garberville along Alderpoint Rd near the jct with Hwy 36; stop #6 215 Comment
  SEINET200362  Ranunculus J. P. Tracy 1921-7-31 5861 Humboldt Fortuna 30 Comment
  HSC34119  Ranunculus alismifolius var. hartwegii J. O. Sawyer 1971-6-16 2386 Humboldt Headwaters of Tish Tang a Tang Creek 1829 Comment
  POM118706  Ranunculus californicus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC18137  Ranunculus californicus var. californicus C. O. Baker 1962-3-22 8 Humboldt 2 mi. S of Trinidad along old Hwy. 101 183 Comment
  HSC40642  Ranunculus californicus var. californicus J. P. Smith, J. O. Sawyer 1975-5-11 8083 Humboldt Samoa Peninsula, just N of Coast Guard Station boundary. Comment
  UC1103012  Ranunculus flammula Joseph P. Tracy 1936-6-28 15023 Humboldt Lake Prairie Bald Mountain 1066 Comment
  RSA85287  Ranunculus flammula var. ovalis F. W. Peirson 1923-7-11 3726 Humboldt 7 miles N of Arcata. Comment
  UC1196219  Ranunculus occidentalis J. P. Tracy 1901-6-23 1182 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1196225  Ranunculus occidentalis Joseph P. Tracy 1921-4-24 5453 Humboldt Phillipsville Flat Northern Coast Ranges, South Fork of Eel River 91 Comment
  UC503037  Ranunculus occidentalis Joseph P. Tracy 1929-7-4 8608 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  HSC18172  Ranunculus occidentalis var. occidentalis J. Mustain 1963-4-27 40 Humboldt Big Lagoon Park Comment
  UC13969  Ranunculus orthorhynchus var. orthorhynchus Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  UCD97071  Ranunculus parviflorus John Thomas Howell 1954-4-25 29153 Humboldt Arcata. Comment
  UC535740  Ranunculus repens Eleanor Armstrong 1170 Humboldt Richardson Grove Comment
  UCR275102  Ranunculus repens Charity A. Hartshorn 2016-4-24 12 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  HSC81964  Ranunculus uncinatus var. parviflorus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4945 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UC1193393  Rhamnus californica R. H. Neuns 1950-10-9 134 Humboldt near Thorne 609 Comment
  UC61100  Rhamnus californica subsp. californica J. Burtt Davy 1899-6-21 5732 Humboldt Supply Creek Hoopa Valley Comment
  UC177180  Rhamnus purshiana Joseph P. Tracy 1913-6-13 4108 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD23454  Rhododendron columbianum K. Niles 1950-9-20 s.n. Humboldt Big Lagoon. Comment
  CAS-BOT-BC56612  Rhododendron macrophyllum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC56616  Rhododendron macrophyllum Mrs. A. H. Rodda 1932-5-20 s.n. Humboldt Redwood Highway Comment
  SDSU3418  Rhododendron macrophyllum D. F. Howe 1963-5-26 3552 Humboldt 3.2 miles east of Orick and Bald Hill road. 457 Comment
  UC1197789  Rhododendron occidentale J. P. Tracy 1901-6-23 1165 Humboldt immediate vicinity of Eurek 0 Comment
  UC604646  Rhododendron occidentale Joseph P. Tracy 1938-6-16 15944 Humboldt Trinidad 60 Comment
  HSC7883  Rhododendron occidentale var. paludosum J. Pursell 1964-10-6 1062 Humboldt Big Lagoon Bog Comment
  HSC101979  Ribes binominatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 876 Humboldt Patterson Meadows 1566 Comment
  HSC57641  Ribes binominatum G. L. Clifton, Griswold 1979-7-25 10805 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC108910  Ribes divaricatum var. pubiflorum Doris K. Kildale 1927-6-28 3607 Humboldt Lower Mad River near Covered Bridge on Redwood Highway. Comment
  CAS-BOT-BC108911  Ribes divaricatum var. pubiflorum John Thomas Howell 1954-4-25 29158 Humboldt Dune hills, Little River. Comment
  HSC75414  Ribes lacustre J. O. Sawyer, M. A. Ericksen 1980-7-18 3646 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek 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
  JEPS79965  Ribes lacustre Joseph P. Tracy Jul 16 1930-Jul 19 1930 9078 Humboldt near McKay Camp (Northern Coast Ranges, South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC173358  Ribes lobbii Harley P. Chandler 1901-6-1 1278 Humboldt Hupa Indian Reservation 1097 Comment
  HSC38950  Ribes lobbii J. P. Smith, J. O. Sawyer 1975-6-22 8207 Humboldt Six Rivers National Forest, W of Goat Hill Comment
  HSC74199  Ribes lobbii M. A. Baker 1980-7-22 3071 Humboldt Near Salmon Mtn. 1820 Comment
  HSC79481  Ribes menziesii Kenneth Clark 1980-3-27 559 Humboldt N fork of Dead Man's Gulch 82 Comment
  JEPS49218  Ribes menziesii Jos. P. Tracy 1904-7-31 2130 Humboldt Eureka 152 Comment
  HSC20310  Ribes menziesii F. S. Griffith 1965-3-20 104 Humboldt 1.0 mi. E of Hwy. 101 along Mad River Rd. Comment
  HSC56094  Ribes nevadense G. L. Clifton, Griswold 1979-7-31 11798 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC492211  Ribes nevadense Joseph P. Tracy 1932-7-18 10716 Humboldt head Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC70757  Ribes roezlii R. York 1980-5-17 526 Humboldt Near Le Perron Peak 792 Comment
  HSC74469  Ribes roezlii Gail Newton 1980-7-23 1719 Humboldt Near Packsaddle Ridge 1463 Comment
  UC1563693  Ribes roezlii Barbara Ertter with Thomas J. Delendick 1987-5-16 6938 Humboldt ca. 3 mi e Berry Summit (on Hwy 299, on s side of road above Willow Cr., ca. 20 air mi e of Arcata) 800 Comment
  RSA167292  Ribes roezlii var. amictum Joseph P. Tracy 1950-6-18 18850 Humboldt Wilder Ridge Comment
  UC1198939  Ribes roezlii var. cruentum Joseph P. Tracy 1935-3-8 13729 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC667062  Ribes roezlii var. cruentum Joseph P. Tracy 1933-7-11 12695 Humboldt Grouse Mountain 1524 Comment
  RSA0024583  Ribes roezlii var. cruentum Jim R. Shevock 1972-3-26 1465 Humboldt Panther Ridge, W of Willow Creek. 305 Comment
  CHSC19492  Ribes sanguineum B. D. Rogers 1965-4-1 411 Humboldt About 4 miles southeast of Arcata, along Jacoby Creek. Comment
  CHSC24919  Ribes sanguineum M. B. Simpson 1976-4-10 19 Humboldt On w bank of West Haven Creek, ca. 20 yds n of Wagon Wheel Road, ca. .1 mi e of West Haven Dr, ca. 13 mi n of Arcata. 121 Comment
  CAS-BOT-BC144676  Ribes sanguineum var. glutinosum Kenneth Clark 1980-3-1 520 Humboldt lower and middle terraces of Dead Man's Gulch 36 Comment
  HSC20333  Ribes sanguineum var. glutinosum C. B. Wolf 1927-8-29 1191 Humboldt 7 mi. S of Ferndale and Capetown, Bear River Ridge, Mt. Glen 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
  UC667051  Ribes sanguineum var. glutinosum Joseph P. Tracy 1933-3-26 10943 Humboldt Big Lagoon 60 Comment
  UC921844  Ribes sanguineum var. glutinosum C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  BLMAR270  Ribes sanguineum var. sanguineum Jennifer Anthony-Wheeler 1999-7-30 270 Humboldt Lacks Creek, growing in Hupa mt quad 1219 Comment
  HSC103233  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-14 21 Humboldt Groves Prairie. Near a bridge just upstream from the campsite near the prairie. 1261 Comment
  HSC44194  Ribes viscosissimum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3489 Humboldt Along W side of road to Goat Hill 1616 Comment
  UC195067  Rigiopappus leptocladus Joseph P. Tracy 1916-6-19 4738 Humboldt near Alder Point; Northern Coast Ranges, Cahto Creek 152 Comment
  RSA95496  Romanzoffia californica L. S. Rose 1954-4-24 54015 Humboldt Trinidad Head. Comment
  UC1199221  Rorippa curvisiliqua Joseph P. Tracy 1934-7-9 13350 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  UC14385  Rorippa nasturtium-aquaticum Chestnut and Drew 1888-7-8 Humboldt Arcata Comment
  UC492261  Rorippa palustris H. E. Parks and Joseph P. Tracy 1931-5-17 9425 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River nr Willow Creek 152 Comment
  CAS-BOT-BC75023  Rorippa palustris var. hispida Henry M. Pollard 1947-8-21 s.n. Humboldt Klamath River near Camp Creek, Orleans region. Comment
  UC1222308  Rosa Joseph P. Tracy 1950-7-6 19028 Humboldt on the Albee Rd 3 mi s Burr. Valley (along stream) 1066 Comment
  CAS-BOT-BC147435  Rosa californica Doris K. Kildale; L. B. Kildale 1930-5-24 9545 Humboldt Hoopa Valley 152 Comment
  HSC99695  Rosa gymnocarpa Jimerson, J. Pageau 1979-6-12 532 Humboldt Near Hopkins Butte, close to the town of Orleans 1037 Comment
  SEINET200819  Rosa gymnocarpa Joseph P. Tracy 1911-7-7 3428 Humboldt Brannan Mountain ,viz. Ridge north of Willow Creek, between Willow and Campbell Creeks, near the summit 1219 Comment
  UC1199039  Rosa gymnocarpa Joseph P. Tracy 1947-8-24 17888 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC146825  Rosa nutkana Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC12912  Rosa nutkana var. nutkana Harley P. Chandler May, 1901 1198 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC154203  Rosa pisocarpa Joseph P. Tracy 1908-6 2873 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC19620  Rosa rubiginosa J. R. Lippincott 1967-7-16 10 Humboldt 1 mi. E of Blue Lake on Hwy. 299 Comment
  HSC47955  Rosa spithamea Brad Klipfel 1974-7-23 474 Humboldt Horse Mountain Comment
  CAS-BOT-BC148385  Rubus leucodermis Doris K. Kildale 1927-5-13 3138 Humboldt Redwood Creek at Berry's 289 Comment
  HSC98453  Rubus leucodermis Gail Newton 1980-8-10 2054 Humboldt Near Blake Mtn. 1707 Comment
  UC1193204  Rubus leucodermis P. Zinke 1950-8-4 152 Humboldt two mi w Harris Post Office; Quad. 29D3, w of Harris Post Office 853 Comment
  HSC19672  Rubus parviflorus R. I. Bonn 1965-5-9 47 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  SEINET10771638  Rubus parviflorus Benjamin W. van Ee, Melissa A. van Ee; Pieter J. van Ee; Juliana M. van Ee 2014-1-1 van Ee 1835 Humboldt By pull-out just W of Hwy 101 on the E shore of Big Lagoon, N of Big Lagoon County Park. 5 Comment
  BLMAR240  Rubus pensilvanicus Jennifer Anthony-Wheeler 1997-6-13 240 Humboldt King range, growing at base of N bank of S fork bear creekbed 463 Comment
  CHSC24872  Rubus spectabilis P. Goldman 1976-3-28 7 Humboldt Ca. 1 mi into Fern Canyon, Fern Canyon State Park, ca. 100 mi s of Cresent City. 0 Comment
  HSC99570  Rudbeckia occidentalis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 235 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
  SEINET5710898  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC54014  Rumex acetosella Griswold, Butler 1979-7-12 7153 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC102639  Rumex californicus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1623 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1101197  Rumex conglomeratus Malcolm A. Nobs, S. Galen Smith 1949-8-9 1236 Humboldt pond on s side of the town of Blue Lake town of Blue Lake Comment
  UC146143  Rumex crispus Joseph P. Tracy 1908-6 2806 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC296201  Ruppia maritima H. E. Parks 1757 Humboldt Little River Lagoon Comment
  POM161039  Sagina procumbens Joseph P. Tracy 1920-6-6 5338 Humboldt Freshwater Creek near Wrangletown. 30 Comment
  HSC95580  Salicornia depressa Andrea Pickart 2002-7-19 180 Humboldt Arcata Marsh at end of I St. 0 Comment
  HSC63012  Salicornia depressa David Wheeler 1979-5-22 130 Humboldt Samoa, intersection of Samoa Blvd. and the railroad tracks near Arcata Redwood Co. Comment
  CAS-BOT-BC132712  Salix A. T. Whittemore 1980-3-15 80 -009 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CAS-BOT-BC129898  Salix bonplandiana Joseph P. Tracy 1933-6-9 12529 Humboldt Shively - Northern Coast Ranges 30 Comment
  JEPS12968  Salix exigua Joseph P. Tracy 1931-9-7 9642 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  SBBG58914  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt mouth of Willow Crk at Trinity River Comment
  UC469443  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-7 9642 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC526711  Salix exigua var. hindsiana H. E. Parks and Joseph P. Tracy 1934-7-25 11090 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC104103  Salix hindsiana Harold E. Parks 1931-5-14 0958 Humboldt Fernbridge, Eel River 10 Comment
  CAS-BOT-BC106859  Salix hookeriana John Johnson 1962-4-1 1188 Humboldt Lanphere Ranch, about 4 miles west of Arcata Comment
  CAS-BOT-BC107704  Salix hookeriana Harold E. Parks 1931-3-26 905 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107734  Salix hookeriana Harold E. Parks; Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad Comment
  HSC38179  Salix hookeriana Thomas W. Nelson 1976-11-5 3296 Humboldt Along Wabash Ave. between F & G St., Eureka Comment
  HSC40860  Salix hookeriana Linda M. Barker 1976-4-13 1380 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC59397  Salix hookeriana Rick Lundquist 1979-4-27 44 Humboldt N spit along Samoa Rd., across from Samoa boat ramp 0 Comment
  HSC59447  Salix hookeriana Kenneth Clark 1979-4-3 34 Humboldt Manila, SW from end of Old Samoa Rd. Comment
  POM161065  Salix hookeriana Joseph P. Tracy 1925-4-5 6952 Humboldt Near Laren Frost place on Kneeland Road. near Kneeland Prairie. 610 Comment
  POM219566  Salix hookeriana H. E. Parks 1931-3-24 915 Humboldt Trinidad. 90 Comment
  UC1196557  Salix hookeriana Joseph P. Tracy 1933-11-12 13114 Humboldt along S. Fork Eel R. Miranda; North Coast Ranges 91 Comment
  UC429548  Salix hookeriana Joseph P. Tracy 1904-7-17 2124 C Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  UC469114  Salix hookeriana Joseph P. Tracy 1931-8-23 9622 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC490469  Salix hookeriana Joseph P. Tracy 1932-9-5 10769 Humboldt Mattole R. near Petrolia; Northern Coast Region, Mattole R. 15 Comment
  UC490474  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10342 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UC512014  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1229 Humboldt 1 1/2 mi e Alton; Van Duzen River 30 Comment
  UC512110  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1205 Humboldt 4 1/2 mi s Trinidad (Little River Lagoon); Little River Lagoon Comment
  UCD111038  Salix hookeriana Linda M. Barker 1976-4-30 1415 Humboldt 3 miles west of Arcata. Comment
  CDA39526  Salix hookeriana Gordon Leppig 2005-4-8 2203 Humboldt Humboldt Bay Dunes and Wetlands; North Spit, south end of Peninsula Drive. Comment
  POM219697  Salix hookeriana var. tomentosa H. E. Parks 1931-5-12 956 Humboldt Samoa. Humboldt Bay. Near sea level. 0 Comment
  LA208728  Salix laevigata Mrs. H. P. Bracelin; 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers; S Fork of Eel River 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-BC128190  Salix lasiandra var. lasiandra Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC128193  Salix lasiandra var. lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  LA208824  Salix lasiandra var. lasiandra Harold E. Parks; 1931-5-14 959 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  SJSU164  Salix lasiandra var. lasiandra H. E. Parks 1931-5-14 959 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  CAS-BOT-BC107603  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-12 1236 Humboldt Gravelly floodplain of the Van Duzen River at Blue Slide 91 Comment
  HSC19997  Salix lasiolepis J. P. Tracy 1933-3-19 10934 Humboldt Bridgeville, along Van Duzen River 229 Comment
  HSC20011  Salix lasiolepis J. P. Tracy 1933-5-14 12184 Humboldt Berry's Mt. on Trinity Hwy. 762 Comment
  HSC96365  Salix lasiolepis Gordon Leppig 1999-4-15 1123 Humboldt Big Lagoon County Park, Big Lagoon Bog, E fen edge 3 Comment
  JEPS12923  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1933-3-19 11005 Humboldt near Bridgeville; Northern Coast Ranges 182 Comment
  LA208777  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11005 Humboldt Van Duzen River, 2 mi. W of Bridgeville 228 Comment
  UC470409  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC481338  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC481340  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC506343  Salix lasiolepis Joseph P. Tracy 1933-5-11 10932 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC511982  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC519343  Salix lasiolepis Joseph P. Tracy 1933-10-8 13088 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC526719  Salix lasiolepis Joseph P. Tracy 1934-4-8 13171 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UCD111583  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-13 01254 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road. Comment
  CAS-BOT-BC107404  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-3-28 1678 Humboldt Redwood Creek near Berry's 289 Comment
  RSA10910  Salix lasiolepis var. sandbergii Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1324 Humboldt Berry's Mountain. E of Redwood Creek. On Trinity Hwy. 762 Comment
  POM219560  Salix lucida subsp. lasiandra H. E. Parks 1931-3-24 911 Humboldt Fortuna. Eel River. 10 Comment
  CAS-BOT-BC125620  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt Junction of North and South forks of Eel River Comment
  CAS-BOT-BC125621  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 284 Humboldt East of Redwood Highway, 6 km. south of Alton 20 Comment
  HSC20061  Salix melanopsis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1234 Humboldt Van Duzen River, 1.5 mi. E of Alton 30 Comment
  SBBG29038  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  SBBG57931  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy, 6 km S of Alton Comment
  SD920  Salix melanopsis Harold E. Parks 1931-5-14 956 a Humboldt Van Duzen River above Bridgeville, river bed 299 Comment
  UC1196637  Salix melanopsis Joseph P. Tracy 1932-8-27 10746 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC481275  Salix melanopsis Harold E. Parks 1931-5-28 1027 Humboldt Little River Lagoon Comment
  UC481288 Image available Salix melanopsis Harold E. Parks 1931-5-14 962 Humboldt between Alton and Carlotta; Van Duzen River; Van Duzen River, Humboldt Co. 15 Comment
  UC519373  Salix melanopsis Joseph P. Tracy 1933-5-20 12262 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  CAS-BOT-BC129129  Salix scouleriana Harold E. Parks 1933-1-1 1341 Humboldt Spruce Cove, Highway 101, Trinidad 64 Comment
  CAS-BOT-BC129169  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt Rocky exposed places, head of Devil's Hole - Trinity Summit, Klamath Mountains 1828 Comment
  HSC41937  Salix scouleriana Ed Cope 1977-4-23 24 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  JEPS13087  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  UC1196696  Salix scouleriana Joseph P. Tracy 1924-1-27 6599 Humboldt along Eel R. from S. Fork to Scotia (South Fork Station); Northern Coast Ranges, Eel R. 60 Comment
  UC1196705  Salix scouleriana Joseph P. Tracy 1933-3-26 10945 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC1196711  Salix scouleriana Joseph P. Tracy 1942-6-23 17259 Humboldt near Water-dog Lakes Trinity Summit, Water-dog Lakes 1828 Comment
  UC470446  Salix scouleriana Joseph P. Tracy 1931-11-14 9755 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC519394  Salix scouleriana Harold E. Parks January 1933 1341 Humboldt Hwy. 101 Spruce Cove; Trinidad 64 Comment
  CAS-BOT-BC128984  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  HSC20122  Salix sitchensis H. E. Parks, J. P. Tracy 1931-3-26 908 Humboldt Van Duzen River Comment
  HSC90192  Salix sitchensis Jean Hanson 1980-3-8 6 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90388  Salix sitchensis Jean Hanson 1980-3-8 7 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC1196714  Salix sitchensis Joseph P. Tracy 1933-5-20 12265 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC481276  Salix sitchensis Harold E. Parks 1931-5-28 1029 Humboldt Little River Lagoon Comment
  UC490493  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
  UC490531  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt head of Brett Hole; Klamath Mts., Trinity Summit, Brett Hole 1828 Comment
  CDA39587  Salix sitchensis Gordon Leppig 2005-4-8 2206 Humboldt North Spit Swamp, west side of highway. Comment
  UC1222585  Salsola tragus Joseph P. Tracy 1950-8-20 19323 Humboldt 8 mi. below Orleans (Klamath R. near Slate Creek, at Big Bar); Klamath R. 121 Comment
  HSC3966  Sambucus racemosa var. racemosa Harvey Doerksen 1962-5-4 7 Humboldt 0.25 mi. W of Korbel, S side of Mad River. Comment
  HSC1798  Sanguisorba minor William J. Ferlatte, B. D. Rogers 1966-8-15 3122 Humboldt 1/2 mi. E of Azalea State Park Comment
  HSC21612  Sanicula arctopoides J. R. Kahl 1962-4-13 16 Humboldt 1 mi. N of Samoa, 1,200 yds. from ocean Comment
  UC642286  Sanicula arctopoides Joseph P. Tracy 1927-6-8 8110 Humboldt Trinidad 3 Comment
  HSC45318  Sanicula arctopoides R. A. Vanbianchi 1972-3-29 129 Humboldt Samoa Peninsula,W side, across from public boat ramp Comment
  UC154131  Sanicula bipinnatifida Joseph P. Tracy 1909-8-1 3056 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1006710  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  UC642248  Sanicula crassicaulis Joseph P. Tracy 1937-5-8 7967 Humboldt Phillipsville, South Fork Eel River South Fork Eel River; Phillipsville, South Fork Eel River 121 Comment
  UCD128031  Sanicula laciniata R. N. Raynor 1935-3-2 s.n. Humboldt Fort Seward. Comment
  HSC68997  Sanicula tracyi Jacqueline Greenleaf 1980-8-12 321 Humboldt Near Pistol Spring. 1082 Comment
  RSA445278  Satureja douglasii Thekla Mohr 1918-07 3337 Humboldt Eel River. Comment
  CAS-BOT-BC441186  Saxifraga mertensiana Lincoln Constance; Reed C. Rollins 1942-5-11 2869 Humboldt Three miles west of East Fork of Willow Creek Comment
  CAS-BOT-BC441187  Saxifraga mertensiana Alice Eastwood; John Thomas Howell 1937-6-24 4867 Humboldt 5 miles east of Berry Summit Comment
  UC642324  Scandix pecten-veneris Joseph P. Tracy 1927-4-24 7926 Humboldt Eureka 15 Comment
  RSA246889  Schoenoplectus acutus var. occidentalis Robert F. Thorne, Percy C. Everett 1965-8-9 35283 Humboldt Big Lagoon. 3 Comment
  HSC79388  Schoenoplectus americanus Kenneth Clark 1980-5-10 651 Humboldt Shelter Cove, western beach of Point Delgada at 10 ft. above high tide Comment
  HSC85847  Schoenoplectus americanus L. P. Janeway 1983-9-24 702 Humboldt S side of Big Lagoon at county camp ground, 10-30 ft. from water line 3 Comment
  HSC36890  Scirpus microcarpus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2058 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  UC1103647  Scirpus pungens Joseph P. Tracy 1934-10-21 13689 Humboldt along coast in front of South End of Stone Lagoon Dry Lagoon 3 Comment
  HSC92543  Scoliopus bigelovii S. Morrissette, J. Williams, K. Kopper 1994-3-28 5 Humboldt On Lost Coast Trail, 2.25 mi. S of Bear Harbor Camp in J. Smeaton Chase Grove Comment
Read comments
Mar 9 2013
  SEINET12050495  Scoliopus bigelovii F. H. Utech 1988-1 88 -293 Humboldt 11 mi from Bridgeville on Bridgeville-Kneeland Road, along Yager Creek, SE of Lone Star Junction 775 Comment
  SEINET926248  Scoliopus bigelovii Joseph P. Tracy 1950-1 18611 Humboldt 1 mile west of Dinsmore's. Along Van Duzen River, opposite Buck Mountain. 762 Comment
  UC1103134  Scribneria bolanderi Joseph P. Tracy 1932-6-26 10275 Humboldt North Coast Ranges, Fort Baker Ranch Fort Baker Ranch Fort Baker Ranch; North Coast Ranges, Fort Baker Ranch 762 Comment
  UC582594  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  CDA41913  Scrophularia californica T. C. Fuller 1958-6-17 595 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC12711  Scrophularia californica M. J. Athey 1970-10-12 19 Humboldt Along the old road to Trinidad Comment
  RSA79453  Scrophularia californica F. W. Peirson 1926-7-13 7053 Humboldt Vicinity of Blue Lake, Mad River. Comment
  UCD170580  Scrophularia californica Gordon Leppig 1998-4-14 739 Humboldt McKinleyville, Central Ave. south-bound lane near 101 junction. 42 Comment
  HSC79346  Sedum laxum subsp. heckneri D. K. Imper 1983-6-17 Humboldt 1 mi. S of Cedar Camp (road to Mosquito Lake), on FS Rd. 12N12, also located along FS Rd. 12N12 4 mi. N 1159 Comment
  UC667081  Sedum laxum subsp. heckneri Joseph P. Tracy 1935-7-30 14363 Humboldt Salmon Summit 1767 Comment
  HSC57880  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-31 11418 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC59127  Sedum spathulifolium Henry M. Pollard 1948-7-28 s.n. Humboldt River road near Orleans Comment
  UC1198829  Sedum spathulifolium Joseph P. Tracy 1913-6-26 4347 Humboldt opposite Buck Mountain (Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley Van Duzen River, Buck Mountain 762 Comment
  CAS-BOT-BC59111  Sedum spathulifolium subsp. pruinosum Ira L. Wiggins 1932-6-18 5878 Humboldt Mouth of Little River. Comment
  CAS-BOT-BC69738  Selaginella wallacei Joseph P. Tracy 1932-3-20 9783 Humboldt Trinidad. 60 Comment
  CHSC79937  Selaginella wallacei L. P. Janeway 1996-8-4 5061 Humboldt High North Coast Ranges. Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain. 1341 Comment
  UC1199242  Senecio integerrimus var. major Joseph P. Tracy 1938-6-13 15914 Humboldt Cold Springs Grouse Mountain 1432 Comment
  UC128743  Senecio integerrimus var. major Harley P. Chandler 1086 Humboldt Harris North Coast Ranges 304 Comment
  UC581708  Senecio integerrimus var. major Joseph P. Tracy 1935-7-28 14326 Humboldt Head of Devils Hold Trinity Summit 1828 Comment
  HSC96207  Senecio integerrimus var. major J. McIntire, S. Lyon 2005-6-8 5 Humboldt Cold Springs Camp; 7.4 S of Hwy. 299 on FS Rd. NF1 1402 Comment
  HSC57671  Senecio triangularis G. L. Clifton, Griswold 1979-7-25 10860 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC6128  Senecio triangularis William J. Ferlatte, B. D. Rogers, D. E. Anderson 1966-6-8 2090 Humboldt 2 mi. W of Forest Glen, Granite Canyon. Comment
  HSC31518  Sequoia sempervirens Steve Selva, Roger Jensen 1974-8-28 95 Humboldt Behind Humboldt State University, Arcata. Comment
  SEINET3876316 Image available Sequoia sempervirens Jack D. Brotherson 1982-7-14 3314 Humboldt Ca 25 miles north of Arcata along U.S. Hwy 101.; 0 Comment
  UC55657  Sequoia sempervirens J. P. Tracy 1901-8-11 1277 Humboldt immediate vicinity of Eureka 0 Comment
  UCD92848  Setaria viridis Don Hager 1957-9-25 s.n. Humboldt Titlow Hill, 20 miles southwest of Willow Creek. Comment
  HSC19860  Sherardia arvensis Paul Shields May 1955 Humboldt Horse Mountain Comment
  UC602551  Sherardia arvensis Joseph P. Tracy 1935-5-25 13883 Humboldt Dobbyn Creek 152 Comment
  UC673264  Sidalcea asprella Lincoln Constance, Reed C. Rollins 1942-5-12 2889 Humboldt Klamath River 12 mi n Weitchpec 121 Comment
  UC180183  Sidalcea diploscypha Joseph P. Tracy 1914-5-14 4466 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  CHSC96447  Sidalcea malachroides Gordon Leppig; Todd Treadwell 2005-6-8 2248 Humboldt Pacific Lumber Company land. Blue Slide Creek watershed. UTM Zone 10 NAD 1927, 419949E, 4482795N. 245 Comment
  UC1121977  Sidalcea malachroides R. Stahelin 1933-5-15 19520 Humboldt T. P. L. Co. Eureka Quad. (Freshwater) Comment
  UC1197977  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1930-7-23 9124 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC668144  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1936-8-2 15062 Humboldt French Camp Ridge 1066 Comment
  RSA46857  Sidalcea malviflora subsp. patula Doris K. Kildale 1927-7-1 3624 Humboldt Alton Hill Comment
  UC176967  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3597 Humboldt near Hydesville; Northern Coast Region 30 Comment
  CAS-BOT-BC205761  Sidalcea oregana David Imper 1985-8-1 s.n. Humboldt Six Rivers National Forest. Approximately 1/2 mile west of Ladder Rock alongside trail 1371 Comment
  UC1198364  Silene antirrhina Joseph P. Tracy 1911-7-12 3519 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges, btw Three Creeks and mouth Willow Cre 762 Comment
  UC1198361  Silene californica Joseph P. Tracy 1948-8-8 18096 Humboldt Iaqua 609 Comment
  RSA43854  Silene californica H. M. Pollard 1948-8-9 s.n. Humboldt Camp Creek, near Orleans. Comment
  UC13560  Silene californica Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  UC162884  Silene campanulata subsp. glandulosa Harley P. Chandler June, 1901 1471 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC1537311  Silene gallica Gordon H. True Jr. 1936-5-11 461 Humboldt 12 mi w Miranda (e slope Elk Ridge); w of Miranda, e slope Elk Ridge 457 Comment
  UC1541418  Silene gallica W. K. Parks June, 1932 Humboldt vicinity Trinidad; vicinity of Trinidad Comment
  UCD98674  Silene gallica H. E. Parks; S. T. Parks 1937-5-1 5938 Humboldt Trinidad, Spruce Cove. Comment
  HSC4184  Silene gallica Lincoln Constance 1934-5-24 631 Humboldt S Fork Eel River, bordering lower Look Prairie on E. side 122 Comment
  HSC4187  Silene gallica R. J. Vernimen 1963-3-21 23 Humboldt Clam Beach Lagoons, 10 mi. N of Arctata Comment
  CAS-BOT-BC181220  Silene hookeri subsp. bolanderi Volney Rattan 1883-1-1 s.n. Humboldt Mad River Comment
  CAS-BOT-BC181223  Silene hookeri subsp. bolanderi Volney Rattan 1883-1-1 s.n. Humboldt Mad River Comment
  CAS-BOT-BC181242  Silene hookeri subsp. bolanderi Lincoln Constance; Alan A. Beetle 1940-5-17 2612 Humboldt McClellan Mountain, near Eureka 822 Comment
  SEINET10479233  Silene hookeri subsp. bolanderi Botany 1985-4-20 BOTANY s.n. Humboldt T34n,r6e,sec.14,h.m.; Burnt ranch campground off hwy 299. Open area near a Meadow 433 Comment
  CAS-BOT-BC389262  Silene lemmonii Joseph P. Tracy 1932-7-12 10452 Humboldt Trinity Summit. Near Corral Prairie 1584 Comment
  RSA168876  Silene verecunda subsp. platyota Joseph P. Tracy 1951-6-26 19586 Humboldt North side of Board Camp Mountain, at extreme head of Redwood Creek. 1541 Comment
  SEINET201026 Image available Silybum marianum Joseph P. Tracy 1938-7-6 16026 Humboldt Big Lagoon. 12 Comment
  UC668193  Silybum marianum Joseph P. Tracy 1938-7-6 16026 Humboldt Big Lagoon 12 Comment
  HSC6177  Silybum marianum D. E. Anderson 1961-9-13 1811 Humboldt Trinidad Beach Comment
  RSA246759  Sisyrinchium bellum Robert F. Thorne, Percy C. Everett 1965-8-9 35302 Humboldt Big Lagoon. 3 Comment
  POM299501  Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge 33 Comment
  HSC27000  Sisyrinchium californicum Brad Klipfel 1973-8-17 271 Humboldt Big Lagoon Park, N of Trinidad Comment
  SEINET3991727  Smilacina amplexicaulis Unknown 1924-8-10 Humboldt Strongs Station. 91 Comment
  JEPS62111  Smilacina racemosa W. L. Jepson 1932-7-30 16449 Humboldt Bull Creek 121 Comment
  UC1134655  Smilacina racemosa R. Stahelin 1933-5-15 L.H. 23 Humboldt Freshwater Eureka Quadrangle (T.P.L. Co.) Comment
  HSC67842  Solanum americanum J. P. Smith 1971-10-9 5002 Humboldt Mad River above the Fish Hatchery. Comment
  JEPS12065  Solanum furcatum Joseph P. Tracy 1940-10-5 16749 Humboldt Trinidad, near boat landing Trinidad 9 Comment
  HSC21319  Solanum parishii Francis Winter 1960-5-7 Humboldt 1 mi. S of Tish Tang Boys Camp 305 Comment
  RSA167400  Solidago canadensis subsp. elongata Joseph P. Tracy 1948-9-12 18210 Humboldt Trinity Summit, at head of meadow at Box Camp. 1463 Comment
  HSC58093  Solidago elongata G. L. Clifton, Griswold 1979-8-1 12006 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CAS-BOT-BC365662  Solidago spathulata L. R. Abrams 1916-7-20 6144 Humboldt Eureka Comment
  CHSC13899  Solidago spathulata D. Joley 1967-8-17 65 Humboldt Found growing 10 mi NW of Fortuna. Comment
  CHSC76025  Solidago spathulata Vernon H. Oswald 1999-8-19 9835 Humboldt Elk Head at the N end of Trinidad State Beach. At the headland overlooking the ocean. 30 Comment
  HSC6200  Solidago spathulata D. K. Smith 1968-11-9 61 Humboldt Mad River Rd. Comment
  RSA0043130  Solidago spathulata Patricia Wilder 1968-8-21 4401 Humboldt Northern coastal arm of Humboldt Bay, ca. two miles southwest of Samoa. Humboldt Bay drainage area. 8 Comment
  UCR122383  Solidago spathulata var. spathulata George K. Helmkamp, E. A. Helmkamp 2001-7-8 7000 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC57108  Sonchus asper Overton, Butler 1979-7-25 9846 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC39938  Sonchus oleraceus Linda M. Barker 1976-7-5 1644 Humboldt 3 mi. W of Arcata Comment
  HSC12548  Sonchus oleraceus C. Kline 1970-11-15 77 Humboldt 4.2 mi. N of Trinidad, olf Hwy. 101 Comment
  HSC6224  Sonchus oleraceus J. W. Johnson 1961-8-17 1043 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC102045  Sorbus scopulina M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 948 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  HSC21344  Sparganium angustifolium Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  RSA85195  Sparganium angustifolium subsp. emersum F. W. Peirson 1923-7-11 3642 Humboldt 20 miles north of Eureka. Comment
  JEPS32230  Sparganium emersum var. emersum Joseph P. Tracy 1926-8-22 7771 Humboldt pond between Little Van Duzen River and Dinsmore's; Northern Coast Ranges 670 Comment
  HSC93849  Spartina densiflora Gordon Leppig, Kai Neander 1999-4-30 1130 Humboldt Humboldt Bay, Eureka, 30 m S of Del Norte St. fishing pier 1 Comment
  RSA183496  Spartina densiflora D. E. Anderson 1963-9-15 2814 Humboldt Humbolt Bay Comment
  HSC37941  Spergula arvensis Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  UC1196405  Spiranthes porrifolia Joseph P. Tracy 1942-6-15 17154 Humboldt Garberville 152 Comment
  UC668217  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-12 16054 Humboldt Table Bluff Beach, lowlands at w foot of bluff Table Bluff 6 Comment
  POM283393  Stachys bullata Lyman Benson 1929-7-19 s.n. Humboldt Mouth of Matole [Mattole] River. Comment
  HSC89498  Stachys chamissonis P. A. Daly 1984-5-6 2 Humboldt Trinidad Head 61 Comment
  UCLA71295  Stachys chamissonis C. Epling Aug 1933 Humboldt Clam beach Comment
  HSC14416  Stachys mexicana D. E. Anderson 1961-8-11 1727 Humboldt E of Humboldt State College campus. 30 Comment
  HSC79495  Stachys rigida var. quercetorum Kenneth Clark 1979-7-1 451 Humboldt Dead Man's Gulch, lower terrace 6 Comment
  HSC58204  Stachys rigida var. rigida Walter Overton 1979-8-1 12317 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  CAS-BOT-BC175344  Stellaria borealis subsp. sitchana Doris K. Kildale 1926-3-24 1684 Humboldt Ryan Slough near the Occidental Ranch Comment
  HSC40427  Stellaria media Linda M. Barker 1976-2-22 1320 Humboldt 3 mi. W of Arcata Comment
  UC902035  Stenanthium occidentale Joseph P. Tracy 1949-8-26 18517 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC102188  Stipa nelsonii var. dorei M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1102 Humboldt Andy's Camp 1564 Comment
  HSC32279  Stipa occidentalis var. californica D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5624 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC40560  Stipa occidentalis var. californica Thomas W. Nelson, Jane P. Nelson 1976-7-1 2927 Humboldt Along ridge W of Lassic Peak (Signal Peak). 1738 Comment
  HSC70374  Stipa occidentalis var. californica M. A. Baker 1980-6-7 1781 Humboldt Near Brush Mtn. 1128 Comment
  UC1198798  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1913-6-17 4165 Humboldt near summit Northern Coast Ranges, Buck Mountain 1524 Comment
  UC1198801  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-6-20 7655 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC492252  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1932-7-12 10457 Humboldt head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  HSC35696  Streptanthus tortuosus var. tortuosus Thomas W. Nelson, B. Reinhardt 1975-7-30 2103 Humboldt Beside road out Whiting Ridge Comment
  UC1103497  Streptopus amplexifolius var. americanus Joseph P. Tracy 1940-8-25 16720 Humboldt near High Prairie; Bald Mountain 1066 Comment
  HSC54882  Swertia radiata G. L. Clifton, Griswold 1979-7-25 10883 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC58360  Swertia radiata Overton, Butler 1979-8-2 12712 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC31134  Symphoricarpos mollis J. O. Sawyer 1970-6-24 2273 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  UCD137442  Symphoricarpos mollis Joseph P. Tracy 1948-8-15 18144 Humboldt Trinity Summit. On ridge 2 miles east of Grove's Prairie. 1524 Comment
  CAS-BOT-BC99167  Symphyotrichum chilense L. R. Abrams 1927-9-1 12063 Humboldt unspecified Comment
  UC581687  Symphyotrichum hendersonii Joseph P. Tracy 1937-8-12 15634 Humboldt Snow Camp 1402 Comment
  UC1222193  Symphytum asperum Joseph P. Tracy 1943-10-3 17448 Humboldt bottom Arcata (near Iversen dairy ranch) Comment
  SEINET12275944  Symphytum asperum J. P. Tracy 1943-1 17448 Humboldt near Iverson dairy ranch, Arcata Comment
  HSC21149  Synthyris reniformis G. N. Bos 1965-5-2 247 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  JEPS9930  Synthyris reniformis Lincoln Constance 1934-6-15 882 Humboldt South Fork Eel River (Summit of Grasshopper Peak); Bull Creek Region 975 Comment
  UCD124638  Synthyris reniformis K. Esau 1934-4-1 s.n. Humboldt Above Fort Seward. 457 Comment
  JEPS9927  Synthyris reniformis Joseph P. Tracy 1923-3-10 6152 Humboldt Van Duzen River, near Grizzly Creek; Van Duzen River 91 Comment
  UC582543  Synthyris reniformis Joseph P. Tracy 1923-3-10 6152 Humboldt Van Duzen River, near Grizzly Creek; Van Duzen River 91 Comment
  UC1223144  Taraxacum officinale Joseph P. Tracy 1949-6-6 18301 Humboldt 1.5 mi n Forest Service Public Camp (Trinity Summit Road); Happy Camp Mountain 1219 Comment
  HSC34807  Taraxacum officinale Lon Hall 1975-4-4 293 Humboldt Arcata. In front of 1735 J St. 15 Comment
  UC1196936  Taraxia ovata Joseph P. Tracy 1942-5-16 17343 Humboldt w side of river near Garberville; S. Fork of Eel River 152 Comment
  UC642291  Tauschia kelloggii Joseph P. Tracy 1936-6-10 14933 Humboldt mountain slopes w mouth South Fork of Trinity River; mountain slopes w of mouth South Fork of Trinity River 457 Comment
  UC54785  Taxus brevifolia P. E. Goddard Jul 1 1901-Aug 1 1901 127 Humboldt Mud Springs Trinity Summit Trail, Mud Springs Comment
  UC667096  Tellima grandiflora Joseph P. Tracy 1935-7-23 14163 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC20425  Tellima grandiflora J. F. Knezevich 1968-5-23 459 Humboldt Above Trinidad, N end of Big Lagoon 0 Comment
  HSC100463  Thelypodium lasiophyllum Carl C. Marshall 32 Humboldt No data. Comment
  RSA183521  Thermopsis gracilis var. gracilis D. E. Anderson 1965-5-15 3692 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  UCD108599  Thermopsis robusta G. F. Hrusa 1992-5-3 10423 Humboldt 9.5 road m. N of Klamath River on Cedar Camp Rd. 1219 Comment
  HSC1301  Thuja plicata Allan R. Marshall 1962-5-20 23 Humboldt Blue Lake along Hwy. 299 46 Comment
  UC275508  Thuja plicata Joseph P. Tracy 1923-6-24 6365 Humboldt Bald Mountain North Coast Ranges, Bald Mountain (in cold wet meadow near high prairie) 1066 Comment
  HSC97624  Thysanocarpus curvipes Cara Witte 2007-6-4 194 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC45087  Thysanocarpus curvipes R. Sutherland 1978-4-23 28 .23478 Humboldt 640 Comment
  HSC97995  Tiarella trifoliata var. unifoliata Cara Witte 2007-7-11 492 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  UC858903  Tiarella trifoliata var. unifoliata Elizabeth Parsons Hawver Jun 1905-June 1915 Humboldt Carlotta Comment
  RSA151820  Tiarella trifoliata var. unifoliata H. K. Sharsmith, Francia Chisaki 1959-8-22 4753 Humboldt At Happy Camp. Just over Trinity County line. 915 Comment
  SDSU9571  Tiarella trifoliata var. unifoliata D. F. Howe 1959-8-5 2809 Humboldt Redwood Hwy - #101 alternate 5 miles N of Weott, Drexel Grove. Comment
  UC615036  Tiarella trifoliata var. unifoliata Beryl O. Schreiber 1934-6-4 1129 Humboldt Redwood Highway Stephen's Grove (Stephen's Grove) Comment
  UC180222  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1914-9-6 4606 Humboldt near Seidell Ranch (peat bog); Bald Mountain, between High Prairie and Snow Camp Comment
  UC1222357  Tolmiea diplomenziesii Joseph P. Tracy 1950-6-8 18726 Humboldt Bear River Ridge 609 Comment
  UC11947  Tolmiea diplomenziesii W. C. Blasdale Jun 1899 5887 Humboldt Weitchpec North Coast Ranges, Klamath River (on the Klamath River, opposite the mouth of the Trinity) Comment
  CAS-BOT-BC447610  Tolmiea menziesii Harley P. Chandler 1901-5-1 1268 Humboldt Redwood Belt 457 Comment
  CAS-BOT-BC447611  Tolmiea menziesii J. P. Tracy 1900-5-30 832 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC21164  Tonella tenella D. E. Anderson 1963-5-18 2452 Humboldt Near junction of New and Trinity Rivers Comment
  UC1197063  Torilis arvensis subsp. arvensis Mrs. Archie Cathey July 1933 Humboldt near Miranda (at Cathey Ranch) 304 Comment
  HSC63227  Toxicodendron diversilobum M. A. Baker 1978-6-6 465 Humboldt Weitchpec Comment
  UC668182  Toxicodendron diversilobum Joseph P. Tracy 1937-5-30 15301 Humboldt 5 mi. n. Blocksburg (Larrabee Creek); Larrabee Creek 365 Comment
  SEINET12238543  Toxicodendron diversilobum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -276 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC86488  Tracyina rostrata Tom Duebendorfer 1988-6-14 881 Humboldt About 2 mi. E of confluence of Kekawaka Creek and the Eel River, N of Lauffer Ranch. 457 Comment
Read comments
May 18 2010
  HSC75391  Trautvetteria caroliniensis J. O. Sawyer, M. A. Ericksen 1980-7-18 3639 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  CAS-BOT-BC517421  Triantha occidentalis subsp. occidentalis Joseph P. Tracy 1914-9-6 4606 Humboldt Northern Coast Ranges, Bald Mountain between High Prairie and Snow Camp, near Seidell Ranch 1219 Comment
  RSA167428  Trichostema oblongum Joseph P. Tracy 1950-8-8 19284 Humboldt Croghan Hole, on Trinity Summit 1677 Comment
  HSC17942  Trientalis latifolia H. E. Parks, S. T. Parks Jun 1952 7548 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC95824  Trientalis latifolia Kevin Thomas 2004-4-26 16 Humboldt Jacoby Creek Rd. Comment
  UC162776  Trifolium albopurpureum var. albopurpureum Joseph P. Tracy 1908-6 2854 Humboldt opposite Buck Mtn (valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC495672  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1929-5-5 8566 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC906702  Trifolium albopurpureum var. dichotomum Harold E. Parks and Joseph P. Tracy 1942-5-16 11555 Humboldt vicinity Garberville 152 Comment
  CDA4306  Trifolium angustifolium B. Morrison 1974-7-22 Humboldt Approximately six miles east of Capetown, on Bear River Road. 0 Comment
  UC1223512  Trifolium barbigerum Joseph P. Tracy 1939-4-18 16213 Humboldt w side South Fork of Eel River (Garberville) 152 Comment
  UC1223487  Trifolium cyathiferum Joseph P. Tracy 1934-6-27 11082 Humboldt 2 mi s Horse Mtn (Grouse Mtn, Cold Springs) 1432 Comment
  HSC39836  Trifolium dubium Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  POM118629  Trifolium dubium Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC149767  Trifolium dubium Harley P. Chandler May 1901 1127 Humboldt Eureka North Coast Ranges, Humboldt Bay 30 Comment
  RSA510999  Trifolium dubium Robert F. Thorne, Percy C. Everett, K. Thorne 35246 Humboldt N edge of Eureka, E of Hwy. 101. 5 Comment
  UC495654  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-7-6 8835 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  BLMAR736  Trifolium fucatum Jennifer Wheeler 2015-5-8 736 Humboldt Larabee Butte, at Butte Creek Access Rd off Hwy 36 in drainage ditches 722 Comment
  HSC1864  Trifolium fucatum Elrid H. Spinas 1948-5-15 20 Humboldt Horse Mtn. Comment
  UC162803  Trifolium fucatum Joseph P. Tracy 1906-7-4 2532 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UC495642  Trifolium gracilentum Joseph P. Tracy 1932-5-22 10124 Humboldt betw Miranda and Redway (South Fork of Eel River); North Coast Ranges 91 Comment
  SD73200  Trifolium incarnatum Darley F. Howe 1969-6-3 4623 Humboldt 13 miles north of Orick on Hwy 101 Comment
  HSC76223  Trifolium longipes subsp. oreganum Overton, Butler 1979-7-24 9763 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC98664  Trifolium longipes subsp. oreganum Cara Witte 2008-7-2 821 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  HSC99726  Trifolium longipes subsp. oreganum Glenn W. K. Shelton 2010-7-16 20 Humboldt Titlow Hill Rd., turnout on right 0.9 mi. S of Cold Springs, 0.2 mi. down road from Titlow Hill Rd. 1421 Comment
  RSA168855  Trifolium macraei Joseph P. Tracy 1950-6-18 18842 Humboldt Cape Ridge one mile est of Cape Mendocino. 152 Comment
  UC1223358  Trifolium macraei Joseph P. Tracy 1933-5-20 12222 Humboldt s point of cape (near ocean shore); Cape Mendocino 3 Comment
  HSC22536  Trifolium microcephalum D. E. Anderson, J. P. Smith 1970-5-10 5057 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC79459  Trifolium microcephalum Kenneth Clark 1980-4-18 591 Humboldt Shelter Cover, along access trail to Dead Man's Gulch 107 Comment
  UC1197489  Trifolium oliganthum Joseph P. Tracy 1922-4-30 6002 Humboldt near Willow creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC45113  Trifolium repens R. Sutherland 1978-5-17 1 .17578 Humboldt 305 Comment
  UC1197045  Trifolium resupinatum J. P. Tracy 1896-5 105 Humboldt immediate vicinity Eureka (J and 14th St.) 0 Comment
  UC165539  Trifolium willdenovii Harley P. Chandler June 1901 1450 Humboldt Klamath River North Coast Ranges 304 Comment
  HSC15172  Trifolium willdenovii D. E. Anderson 1962-5-1 2191 Humboldt Junction of Redwood Creek Rd. and rd. to Hoopa Comment
  HSC45127  Trifolium willdenovii R. Sutherland 1978-5-19 9 .19578 Humboldt 131 Comment
  UC1197535  Trifolium willdenovii J. P. Tracy 1901-4-24 1038 Humboldt Eureka vicinity 0 Comment
  CHSC10114  Trifolium wormskioldii J. W. Johnson 1961-8-17 1009 Humboldt Arcata. In a vernal pond community of Hollow 10 W. M. Lanphere Farm. Samoa Peninsula. Comment
  UC303197  Trifolium wormskioldii Joseph P. Tracy 1925-5-30 7044 Humboldt McClellan Mtn Northern Coast Ranges 822 Comment
  HSC12220  Triglochin maritima Gary J. Stebbins 1970-5-10 78 Humboldt Along Hwy. to Samoa just off the Mad River Slough bridge 2 Comment
  RSA249527  Triglochin maritima Robert F. Thorne, Percy C. Everett 1965-8-7 35214 Humboldt Samoa Peninsula: near sea level Comment
  UCSB25659  Triglochin maritima Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  HSC36302  Triglochin maritima Camille Cornish 1973-10-16 9 Humboldt On shore of Big Lagoon Comment
  HSC97549  Triglochin striata Ivy Watson 2008-9-20 30 Humboldt N of mouth of Mad River, along small tributary E of sand dunes 4 Comment
  HSC93841  Triglochin striata Gordon Leppig 1999-10-25 1267 Humboldt Hwy. 101, mi. marker 61.40, E side of Hwy. 2 Comment
  UCR179285  Trillium R. G. Swinney 1968-3-8 217 Humboldt Arcata 152 Comment
  HSC101812  Trillium albidum Kjirsten A. Wayman 2012-4-29 314 Humboldt Near Burnt Ranch, south of Hwy 299 on FR 5N40, west of intersection with 5N27, N 40.78805 deg. W 123.51164 deg. 942 Comment
  CSUSB390  Trillium ovatum Keith Thompson 1970-12-27 Humboldt Arcata, California. 45 Comment
  HSC103980  Trillium ovatum Kyle Brown 2015-4-25 41 Humboldt Arcata, Redwood Park 98 Comment
  UCR275118  Trillium ovatum Charity A. Hartshorn 2016-5-14 28 Humboldt Arcata Community Forest 244 Comment
  HSC34642  Trillium ovatum John Palmer 1975-4-9 296 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  HSC48531  Trillium ovatum Mark Flippo 1978-4-8 12 Humboldt McKinleyville; Bella Vista Hill Comment
  SEINET12051379  Trillium ovatum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -289 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC1537232  Trillium ovatum Gordon H. True Jr. 1936-2-26 329 Humboldt on Eel R. near Pepperwood; Eel. R. 91 Comment
  UCD139911  Trillium ovatum Anstruther Davidson 1930-1 s.n. Humboldt Kelseyville. Comment
  HSC49797  Trillium ovatum subsp. ovatum R. York 1979-4-9 215 Humboldt Behind HSU campus Comment
  CAS-BOT-BC521318  Trillium rivale L. R. Abrams 1918-6-15 7127 Humboldt Brannan Mt near Willow Creek 1371 Comment
  JEPS2674 Image available Triphysaria eriantha subsp. eriantha Jos. P. Tracy 1901-5-18 2035 Humboldt Sandhills Humboldt Bay, Eureka; Eureka, Humboldt Bay Comment
Read comments
Oct 16 2007
  UC657728  Triphysaria eriantha subsp. eriantha Milo S. Baker 1941-4-10 9942 Humboldt along hiwy a few mi s Eureka Comment
  HSC99105  Triphysaria pusilla Cara Witte 2008-6-15 734 Humboldt Coldspring Camp. 1394 Comment
  UC1222443  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1935-5-25 13851 Humboldt Fort Seward 106 Comment
  UC1222439  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1942-5-29 17089 Humboldt Eureka 6 Comment
  UC27193  Triphysaria versicolor subsp. versicolor Harley P. Chandler May, 1901 1101 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  POM118380  Trisetum canescens Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1056012  Trisetum canescens W. L. Colwell 1954-10-12 10 Humboldt 4 mi ne Blocksburg 1127 Comment
  CAS-BOT-BC193513  Trisetum cernuum Harley P. Chandler 1901-5-1 1176 Humboldt Humboldt Bay 30 Comment
  SEINET10604384  Trisetum cernuum Joseph P. Tracy 1935-5-24 Tracy 13814 Humboldt Eureka. Moist shady woods. 0 Comment
  SBBG896  Triteleia laxa K. K. Muller 1954-6-21 631 Humboldt Olsen Crk, 2 mi ENE of Mad River Comment
  UC144105  Triteleia laxa J. P. Tracy 1909-7-18 3013 Humboldt immediate vicinity of Eureka 0 Comment
  UCSB13010  Triteleia laxa Muller, Katherine 1954-6-21 Humboldt Olson Creek, 2 mi. E. NE. of Mad River Comment
  UC672889  Tsuga heterophylla Joseph P. Tracy 1940-8-25 16704 Humboldt Bald Mountain Bald Mountain (in forest mainly of Douglas Fir, in cold shaded gulches) 914 Comment
  UCR6818  Tsuga heterophylla David Whistler, H. M. Whistler 1964-8-1 640801- 2 Humboldt Coast Range, US Hwy 299, 6 mi east of Blue Lake Comment
  CAS-BOT-BC73930  Turritis glabra Alice Eastwood; John Thomas Howell 1937-6-23 4804 Humboldt Little Van Duzen River. Comment
  CAS-BOT-BC73933  Turritis glabra Doris K. Kildale 1927-7-17 3761 Humboldt Big Creek. 792 Comment
  CDA4354  Ulex europaeus T. C. Fuller 1958-6-17 1714 Humboldt T. J. Cotter property, mouth of Elk River, Eureka. 0 Comment
  UC1196283  Umbellularia californica Joseph P. Tracy 1920-10-24 5405 Humboldt North Fork of Mad River, at Camp Bauer North Fork of Mad River; Northern Coast Ranges, North Fork of Mad River 60 Comment
  SEINET12103378  Umbellularia californica J. P. Tracy 1950-12-10 s.n. Humboldt no further locality Comment
  UC128871  Uropappus lindleyi Harley P. Chandler Jun 1901 1508 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC582438  Uropappus lindleyi Joseph P. Tracy 1927-5-14 8008 Humboldt near South Fork; Trinity River Valley 182 Comment
  CAS-BOT-BC403928  Urtica dioica subsp. gracilis L. R. Abrams; R. Bacigalupi 1922-6-25 8278 Humboldt Big Lagoon south of Orick Comment
  POM380627  Urtica dioica subsp. gracilis Lyman D. Benson 1929-7-12 1792 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  POM87676  Urtica dioica subsp. gracilis L. R. Abrams, R. C. Bacigalupi 1922-6-25 8278 Humboldt Big Lagoon, south of Orick. Comment
  HSC62985  Utricularia macrorhiza David Wheeler 1979-4-21 75 Humboldt Fieldbrook Elementary School, pond to the W of the baseball fields. Comment
  CAS-BOT-BC199314  Vaccinium ovatum M. S. Jussel 1931-5-2 s.n. Humboldt 30 miles n. of Garberville Comment
  CAS-BOT-BC199322  Vaccinium ovatum Carl B. Wolf 1930-10-24 1761 Humboldt Along the Klamath River 2 miles below mouth of Salmon River 152 Comment
  HSC7910  Vaccinium ovatum Dan O'Brien 1962-5-20 Humboldt 0.5 mi. E of Humboldt State University campus Comment
  JEPS25685  Vaccinium ovatum P. C. Hutchison 1961-5-22 2006 Humboldt 14.3 mi e Arcata junction with U.S. Highway 101 (on U.S. Highway 299) Comment
  UC719767  Vaccinium ovatum Rogers McVaugh 1941-8-3 6218 Humboldt 1.25 mi s Headquarters Patrick Point State Park Comment
  CDA38877  Vaccinium ovatum Gordon Leppig 1998-6-26 854 Humboldt McKinleyville, Rte 101 at Mad River Overlook. Comment
  CAS-BOT-BC199405  Vaccinium parvifolium Doris K. Kildale; J. W. Gillespie 1929-6-25 8393 Humboldt Pines Pasture, Eureka Comment
  UC1121143  Vaccinium parvifolium A. E. Wieslander 1931-5-19 205 Humboldt Near Orleans; Klamath Forest, Hoopa Quad. Comment
  UC32671  Vaccinium parvifolium Chesnut and Drew 1888-7-11 Humboldt Jarnigan's Comment
  CAS-BOT-BC199418  Vaccinium parvifolium H. E. McMinn 1922-6-23 263 Humboldt Near Van Dusen [Duzen] River Comment
  UC213146  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1919-9-18 5246 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1524 Comment
  UC562350  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1932-7-14 10564 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC602512  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1924-4-27 6643 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  UC503042  Vancouveria hexandra Joseph P. Tracy 1927-6-19 8196 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  RSA302706  Vancouveria hexandra Jim Shevock 1971-5-29 1141 Humboldt Trinity Hwy 299. Comment
  UC1541237  Vancouveria hexandra H. E. and S. T. Parks May, 1930 757 Humboldt in wet woods along the Van Duzen River; along the Van Duzen River Comment
  JEPS33032  Vancouveria planipetala Lincoln Constance 1934-5-23 603 Humboldt s slope of mt. above Look Prairie Bull Creek area (Bull Creek area); , above Look Prairie 365 Comment
  CAS-BOT-BC391321  Velezia rigida Harley P. Chandler 1901-6-1 1306 Humboldt North Coast Ranges. Hupa Indian Reservation 152 Comment
  UC176191  Veratrum californicum var. californicum Joseph P. Tracy 1912-6-16 3695 Humboldt between Fields Landing and Salmon Creek (at the Still place); Humboldt Bay Region 0 Comment
  HSC102165  Veratrum viride M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1075 Humboldt Patterson Meadows 1566 Comment
  UC535722  Verbascum blattaria Eleanor Armstrong 1934-8-18 1178 Humboldt Richardson Grove; along river 121 Comment
  HSC24848  Veronica anagallis-aquatica D. E. Anderson, Thomas W. Nelson 1972-5-9 Humboldt Just W of Weitchpec on the road to Pecwan Comment
  HSC78977  Veronica peregrina subsp. xalapensis L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 720 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  HSC99374  Veronica serpyllifolia subsp. humifusa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 23 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC99443  Vicia americana subsp. americana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 93 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC98614  Vicia americana var. americana Cara Witte 2008-7-2 803 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC709405  Vicia americana var. americana Joseph P. Tracy 1935-5-26 13908 Humboldt Iaqua 609 Comment
  RSA46826  Vicia americana var. americana Doris K. Kildale 1926-3-26 1643 Humboldt Old Fortuna Rd Comment
  HSC23780  Vicia cracca R. A. Vanbianchi 1971-9-10 80 Humboldt Along Fieldbrook Rd., .1 mi. from junction with old Hwy. 299 Comment
  HSC49032  Vicia gigantea Patricia Shesgreen 1978-5-5 65 Humboldt 5.1 mi. S of Ferndale on Mattole Rd. Comment
  RSA168915  Vicia hirsuta Joseph P. Tracy 1944-6-10 17474 Humboldt Eureka. Comment
  UC709406  Vicia sativa subsp. nigra Joseph P. Tracy 1934-6-23 13248 Humboldt Arcata Bottom 15 Comment
  HSC44738  Vicia sativa subsp. sativa Maralyn O'Meara 1972-6-8 86 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UC1197474  Vicia tetrasperma Joseph P. Tracy 1934-6-18 13231 Humboldt Eureka; railroad depot 6 Comment
  HSC3226  Vinca major W. R. Brigham 1962-5-3 3 Humboldt Near N end of old Hwy. 101 N of Big Lagoon Rd. Comment
  HSC21757  Viola adunca N. J. Cole, D. E. Anderson 1965-4-13 16 Humboldt 1.5 mi. SE of Maple Creek Rd. jct. with Bald Hills Rd., SE of Korbel Comment
  HSC31741  Viola adunca Donald Spalinger 1974-5-12 58 Humboldt Williams Ridge Rd., 1 mi. N from junction with Bald Hills Rd. 732 Comment
  HSC100695  Viola canina Carl C. Marshall Apr 1886 169 Humboldt Everywhere. Comment
  HSC21787  Viola glabella W. Lanphere 1937-5-11 Humboldt Hoopa Comment
  CAS-BOT-BC536498  Viola glabella Alice Eastwood 1907-4-21 26 Humboldt Trinidad Comment
  UC35267  Viola glabella W. C. Blasdale 1896-6-5 Humboldt Fitzgerald's Comment
  HSC70232  Viola hallii M. A. Baker 1980-6-8 1894 Humboldt Near Buck Flat. 1554 Comment
  RSA135420  Viola hallii Volney Rattan 1882-06 s.n. Humboldt Kneeland Prairie. Comment
  HSC21822  Viola ocellata D. E. Anderson 1965-5-1 3557 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC35264  Viola ocellata W. C. Blasdale 1896-6-8 Humboldt Grahams Comment
  UC1198418  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1924-3-9 6609 Humboldt slopes towards Lawrence Creek; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC71814  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1980-6-27 5953 Humboldt Six Rivers National Forest. Saddle between two peaks E of Mt. Lassic 1768 Comment
  HSC42197  Viola sempervirens Ed Cope 1977-4-23 23 Humboldt 2.5 mi. S of Shelter Cove Rd. South Fork of Bear Creek at Wailaki Campground 561 Comment
  SBBG4837  Viola sempervirens H. and M. Dearing 1933-5-16 1066 Humboldt N of Weott Comment
  UC502968  Viola sempervirens Joseph P. Tracy 1927-5-15 8063 Humboldt near summit Hoopa Mountain (on road w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  CAS-BOT-BC203052  Vitis californica L. B. Kildale 1930-6-1 9754 Humboldt Klamath River at Bluff Creek Comment
  POM92419  Vitis californica L. R. Abrams 1922-6-25 8220 Humboldt 6 miles N of Garberville Comment
  HSC24254  Vulpia bromoides D. E. Anderson 1970-5-21 5078 Humboldt Scotia bluffs. Comment
  HSC9838  Vulpia bromoides J. W. Johnson 1962-4-29 1303 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  POM183574  Vulpia bromoides R. I. Bonn 1965-5-7 21 Humboldt Four miles west of Arcata on Lamphere Rd. Comment
  SEINET11682992  Vulpia bromoides K. S. Erdman 1970-1 4818 Humboldt summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glenn, Redwood National Park Comment
  UCD93869  Vulpia microstachys var. ciliata Joseph P. Tracy 1936-7-5 15038 Humboldt Grouse Mountain. Comment
  CAS-BOT-BC184233  Vulpia microstachys var. pauciflora Joseph P. Tracy 1926-5-2 7440 Humboldt Trinity River Valley, near the South Fork 182 Comment
  UC1103717  Vulpia microstachys var. pauciflora Joseph P. Tracy 1913-6-19 4201 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC180481  Vulpia microstachys var. pauciflora Joseph P. Tracy 1914-5-14 4463 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  UC579195  Vulpia microstachys var. pauciflora H. S. Yates 1936-6-17 5712 Humboldt near Burr Valley; South Fork Peak Quad. 914 Comment
  HSC71718  Vulpia myuros M. A. Baker 1980-6-26 2446 Humboldt Near Sims Creek 610 Comment
  BLMAR153  Whipplea modesta Donald Hazlett 1994-6-7 153 Humboldt King range, E-facing slope off hourse mountain ridge Comment
  HSC35936  Whipplea modesta Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2029 Humboldt French Camp, Bald Hills. Comment
  HSC76267  Whipplea modesta Denis Kearns 1981-6-24 24 Humboldt Near Cedar Camp 1219 Comment
  CHSC70127  Wisteria floribunda Katie Grenier 1988-4-22 271 Humboldt Humboldt State University, S. side of Plant Operations Bldg. on 14th St., growing on fence. Comment
  HSC74461  Woodwardia fimbriata M. A. Baker 1980-5-18 1357 Humboldt Near Black Mtn. 792 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
  JEPS28953  Wyethia glabra D. E. Breedlove 1961-7-4 654 Humboldt 13.7 mi w Willow Creek (U.S. Highway 299) 731 Comment
  HSC99010  Wyethia longicaulis Cara Witte 2008-7-1 778 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  UC604675  Wyethia longicaulis Joseph P. Tracy 1938-7-7 16041 Humboldt Grouse Mountain 1524 Comment
  CHSC31279  Xerophyllum tenax Mark Stopher 1980-5-28 76 Humboldt On French Camp Ridge, 10 mi w of RTE 169 on Bald Hills Rd. 1000 Comment
  UC1173649  Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp 1066 Comment
  CAS-BOT-BC527078  Xerophyllum tenax Volney Rattan 1903-1-1 s.n. Humboldt Near Mad River Bridge Comment
  RSA256707  Xerophyllum tenax D. E. Anderson 1972-6-10 5728 Humboldt Along the Redwood Valley - Hoopa Road east of the summit Comment
  UC154242  Yabea microcarpa Joseph P. Tracy 1906-5-13 2454 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  HSC104431  Zigadenus fremontii Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  HSC39225  Zigadenus micranthus D. E. Anderson, J. P. Smith 1971-7-6 1288 Humboldt Horse Mtn. Comment
  HSC56958  Zigadenus micranthus Overton, Butler 1979-7-23 9472 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  CAS-BOT-BC532733  Zigadenus micranthus Doris Kildale Gillespie 1931-6-7 10646 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  UC1173725  Zigadenus micranthus var. micranthus Joseph P. Tracy 1930-7-6 8840 Humboldt Kneeland Prairie 762 Comment
  UC15056  Zigadenus micranthus var. micranthus Joseph Burtt Davy 1899-6-11 5411 Humboldt near Hubbard's Station Comment
  UC176186  Zigadenus micranthus var. micranthus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3629 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC1222523  Zigadenus venenosus var. venenosus Joseph P. Tracy 1950-6-25 18882 Humboldt nw slope Buck Mountain; , Burr Valley 1066 Comment



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